1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
51 | |
47 | |
|
|
48 | # if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | # endif |
|
|
53 | |
|
|
54 | # if HAVE_CLOCK_SYSCALL |
|
|
55 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
56 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
57 | # ifndef EV_USE_REALTIME |
|
|
58 | # define EV_USE_REALTIME 0 |
|
|
59 | # endif |
|
|
60 | # ifndef EV_USE_MONOTONIC |
|
|
61 | # define EV_USE_MONOTONIC 1 |
|
|
62 | # endif |
|
|
63 | # endif |
|
|
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
66 | # endif |
|
|
67 | |
52 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
53 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
55 | # endif |
71 | # endif |
56 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
57 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
58 | # endif |
74 | # endif |
59 | # else |
75 | # else |
60 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
61 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
62 | # endif |
78 | # endif |
63 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
65 | # endif |
81 | # endif |
66 | # endif |
82 | # endif |
67 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
68 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
69 | # if HAVE_NANOSLEEP |
|
|
70 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
71 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
72 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
|
|
91 | # endif |
|
|
92 | |
|
|
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
94 | # ifndef EV_USE_SELECT |
|
|
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
73 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
74 | # endif |
100 | # endif |
75 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
78 | # define EV_USE_SELECT 1 |
|
|
79 | # else |
|
|
80 | # define EV_USE_SELECT 0 |
|
|
81 | # endif |
105 | # endif |
82 | # endif |
|
|
83 | |
|
|
84 | # ifndef EV_USE_POLL |
|
|
85 | # if HAVE_POLL && HAVE_POLL_H |
|
|
86 | # define EV_USE_POLL 1 |
|
|
87 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
88 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
89 | # endif |
|
|
90 | # endif |
109 | # endif |
91 | |
110 | |
92 | # ifndef EV_USE_EPOLL |
|
|
93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
94 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
95 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
96 | # define EV_USE_EPOLL 0 |
|
|
97 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
98 | # endif |
118 | # endif |
99 | |
119 | |
100 | # ifndef EV_USE_KQUEUE |
120 | # if HAVE_LINUX_AIO_ABI_H |
101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
121 | # ifndef EV_USE_LINUXAIO |
102 | # define EV_USE_KQUEUE 1 |
122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
103 | # else |
|
|
104 | # define EV_USE_KQUEUE 0 |
|
|
105 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_LINUXAIO |
|
|
126 | # define EV_USE_LINUXAIO 0 |
106 | # endif |
127 | # endif |
107 | |
128 | |
|
|
129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
108 | # ifndef EV_USE_PORT |
130 | # ifndef EV_USE_IOURING |
109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
110 | # define EV_USE_PORT 1 |
|
|
111 | # else |
|
|
112 | # define EV_USE_PORT 0 |
|
|
113 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_IOURING |
|
|
135 | # define EV_USE_IOURING 0 |
114 | # endif |
136 | # endif |
115 | |
137 | |
116 | # ifndef EV_USE_INOTIFY |
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
139 | # ifndef EV_USE_KQUEUE |
118 | # define EV_USE_INOTIFY 1 |
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
119 | # else |
|
|
120 | # define EV_USE_INOTIFY 0 |
|
|
121 | # endif |
141 | # endif |
122 | # endif |
|
|
123 | |
|
|
124 | # ifndef EV_USE_EVENTFD |
|
|
125 | # if HAVE_EVENTFD |
|
|
126 | # define EV_USE_EVENTFD 1 |
|
|
127 | # else |
142 | # else |
|
|
143 | # undef EV_USE_KQUEUE |
128 | # define EV_USE_EVENTFD 0 |
144 | # define EV_USE_KQUEUE 0 |
129 | # endif |
|
|
130 | # endif |
145 | # endif |
131 | |
146 | |
|
|
147 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
148 | # ifndef EV_USE_PORT |
|
|
149 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
|
|
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_PORT |
|
|
153 | # define EV_USE_PORT 0 |
132 | #endif |
154 | # endif |
133 | |
155 | |
134 | #include <math.h> |
156 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
157 | # ifndef EV_USE_INOTIFY |
|
|
158 | # define EV_USE_INOTIFY EV_FEATURE_OS |
|
|
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_INOTIFY |
|
|
162 | # define EV_USE_INOTIFY 0 |
|
|
163 | # endif |
|
|
164 | |
|
|
165 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
166 | # ifndef EV_USE_SIGNALFD |
|
|
167 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
168 | # endif |
|
|
169 | # else |
|
|
170 | # undef EV_USE_SIGNALFD |
|
|
171 | # define EV_USE_SIGNALFD 0 |
|
|
172 | # endif |
|
|
173 | |
|
|
174 | # if HAVE_EVENTFD |
|
|
175 | # ifndef EV_USE_EVENTFD |
|
|
176 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
177 | # endif |
|
|
178 | # else |
|
|
179 | # undef EV_USE_EVENTFD |
|
|
180 | # define EV_USE_EVENTFD 0 |
|
|
181 | # endif |
|
|
182 | |
|
|
183 | #endif |
|
|
184 | |
|
|
185 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
186 | * a limit of 1024 into their select. Where people have brains, |
|
|
187 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
188 | * ordered to have a vacuum, or they do anything for money. |
|
|
189 | * This might help. Or not. |
|
|
190 | * Note that this must be defined early, as other include files |
|
|
191 | * will rely on this define as well. |
|
|
192 | */ |
|
|
193 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
194 | |
135 | #include <stdlib.h> |
195 | #include <stdlib.h> |
|
|
196 | #include <string.h> |
136 | #include <fcntl.h> |
197 | #include <fcntl.h> |
137 | #include <stddef.h> |
198 | #include <stddef.h> |
138 | |
199 | |
139 | #include <stdio.h> |
200 | #include <stdio.h> |
140 | |
201 | |
141 | #include <assert.h> |
202 | #include <assert.h> |
142 | #include <errno.h> |
203 | #include <errno.h> |
143 | #include <sys/types.h> |
204 | #include <sys/types.h> |
144 | #include <time.h> |
205 | #include <time.h> |
|
|
206 | #include <limits.h> |
145 | |
207 | |
146 | #include <signal.h> |
208 | #include <signal.h> |
147 | |
209 | |
148 | #ifdef EV_H |
210 | #ifdef EV_H |
149 | # include EV_H |
211 | # include EV_H |
150 | #else |
212 | #else |
151 | # include "ev.h" |
213 | # include "ev.h" |
|
|
214 | #endif |
|
|
215 | |
|
|
216 | #if EV_NO_THREADS |
|
|
217 | # undef EV_NO_SMP |
|
|
218 | # define EV_NO_SMP 1 |
|
|
219 | # undef ECB_NO_THREADS |
|
|
220 | # define ECB_NO_THREADS 1 |
|
|
221 | #endif |
|
|
222 | #if EV_NO_SMP |
|
|
223 | # undef EV_NO_SMP |
|
|
224 | # define ECB_NO_SMP 1 |
152 | #endif |
225 | #endif |
153 | |
226 | |
154 | #ifndef _WIN32 |
227 | #ifndef _WIN32 |
155 | # include <sys/time.h> |
228 | # include <sys/time.h> |
156 | # include <sys/wait.h> |
229 | # include <sys/wait.h> |
157 | # include <unistd.h> |
230 | # include <unistd.h> |
158 | #else |
231 | #else |
|
|
232 | # include <io.h> |
159 | # define WIN32_LEAN_AND_MEAN |
233 | # define WIN32_LEAN_AND_MEAN |
|
|
234 | # include <winsock2.h> |
160 | # include <windows.h> |
235 | # include <windows.h> |
161 | # ifndef EV_SELECT_IS_WINSOCKET |
236 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # define EV_SELECT_IS_WINSOCKET 1 |
237 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # endif |
238 | # endif |
|
|
239 | # undef EV_AVOID_STDIO |
164 | #endif |
240 | #endif |
165 | |
241 | |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
242 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
167 | |
243 | |
|
|
244 | /* try to deduce the maximum number of signals on this platform */ |
|
|
245 | #if defined EV_NSIG |
|
|
246 | /* use what's provided */ |
|
|
247 | #elif defined NSIG |
|
|
248 | # define EV_NSIG (NSIG) |
|
|
249 | #elif defined _NSIG |
|
|
250 | # define EV_NSIG (_NSIG) |
|
|
251 | #elif defined SIGMAX |
|
|
252 | # define EV_NSIG (SIGMAX+1) |
|
|
253 | #elif defined SIG_MAX |
|
|
254 | # define EV_NSIG (SIG_MAX+1) |
|
|
255 | #elif defined _SIG_MAX |
|
|
256 | # define EV_NSIG (_SIG_MAX+1) |
|
|
257 | #elif defined MAXSIG |
|
|
258 | # define EV_NSIG (MAXSIG+1) |
|
|
259 | #elif defined MAX_SIG |
|
|
260 | # define EV_NSIG (MAX_SIG+1) |
|
|
261 | #elif defined SIGARRAYSIZE |
|
|
262 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
263 | #elif defined _sys_nsig |
|
|
264 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
265 | #else |
|
|
266 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
|
|
267 | #endif |
|
|
268 | |
|
|
269 | #ifndef EV_USE_FLOOR |
|
|
270 | # define EV_USE_FLOOR 0 |
|
|
271 | #endif |
|
|
272 | |
|
|
273 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
274 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
|
|
275 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
|
|
276 | # else |
|
|
277 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
278 | # endif |
|
|
279 | #endif |
|
|
280 | |
|
|
281 | #if !(_POSIX_TIMERS > 0) |
|
|
282 | # ifndef EV_USE_MONOTONIC |
|
|
283 | # define EV_USE_MONOTONIC 0 |
|
|
284 | # endif |
|
|
285 | # ifndef EV_USE_REALTIME |
|
|
286 | # define EV_USE_REALTIME 0 |
|
|
287 | # endif |
|
|
288 | #endif |
|
|
289 | |
168 | #ifndef EV_USE_MONOTONIC |
290 | #ifndef EV_USE_MONOTONIC |
|
|
291 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
292 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
|
|
293 | # else |
169 | # define EV_USE_MONOTONIC 0 |
294 | # define EV_USE_MONOTONIC 0 |
|
|
295 | # endif |
170 | #endif |
296 | #endif |
171 | |
297 | |
172 | #ifndef EV_USE_REALTIME |
298 | #ifndef EV_USE_REALTIME |
173 | # define EV_USE_REALTIME 0 |
299 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
174 | #endif |
300 | #endif |
175 | |
301 | |
176 | #ifndef EV_USE_NANOSLEEP |
302 | #ifndef EV_USE_NANOSLEEP |
|
|
303 | # if _POSIX_C_SOURCE >= 199309L |
|
|
304 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
305 | # else |
177 | # define EV_USE_NANOSLEEP 0 |
306 | # define EV_USE_NANOSLEEP 0 |
|
|
307 | # endif |
178 | #endif |
308 | #endif |
179 | |
309 | |
180 | #ifndef EV_USE_SELECT |
310 | #ifndef EV_USE_SELECT |
181 | # define EV_USE_SELECT 1 |
311 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
182 | #endif |
312 | #endif |
183 | |
313 | |
184 | #ifndef EV_USE_POLL |
314 | #ifndef EV_USE_POLL |
185 | # ifdef _WIN32 |
315 | # ifdef _WIN32 |
186 | # define EV_USE_POLL 0 |
316 | # define EV_USE_POLL 0 |
187 | # else |
317 | # else |
188 | # define EV_USE_POLL 1 |
318 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
189 | # endif |
319 | # endif |
190 | #endif |
320 | #endif |
191 | |
321 | |
192 | #ifndef EV_USE_EPOLL |
322 | #ifndef EV_USE_EPOLL |
193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
323 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
194 | # define EV_USE_EPOLL 1 |
324 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
195 | # else |
325 | # else |
196 | # define EV_USE_EPOLL 0 |
326 | # define EV_USE_EPOLL 0 |
197 | # endif |
327 | # endif |
198 | #endif |
328 | #endif |
199 | |
329 | |
… | |
… | |
203 | |
333 | |
204 | #ifndef EV_USE_PORT |
334 | #ifndef EV_USE_PORT |
205 | # define EV_USE_PORT 0 |
335 | # define EV_USE_PORT 0 |
206 | #endif |
336 | #endif |
207 | |
337 | |
|
|
338 | #ifndef EV_USE_LINUXAIO |
|
|
339 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
|
|
340 | # define EV_USE_LINUXAIO 1 |
|
|
341 | # else |
|
|
342 | # define EV_USE_LINUXAIO 0 |
|
|
343 | # endif |
|
|
344 | #endif |
|
|
345 | |
|
|
346 | #ifndef EV_USE_IOURING |
|
|
347 | # if __linux /* later checks might disable again */ |
|
|
348 | # define EV_USE_IOURING 1 |
|
|
349 | # else |
|
|
350 | # define EV_USE_IOURING 0 |
|
|
351 | # endif |
|
|
352 | #endif |
|
|
353 | |
208 | #ifndef EV_USE_INOTIFY |
354 | #ifndef EV_USE_INOTIFY |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
355 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
210 | # define EV_USE_INOTIFY 1 |
356 | # define EV_USE_INOTIFY EV_FEATURE_OS |
211 | # else |
357 | # else |
212 | # define EV_USE_INOTIFY 0 |
358 | # define EV_USE_INOTIFY 0 |
213 | # endif |
359 | # endif |
214 | #endif |
360 | #endif |
215 | |
361 | |
216 | #ifndef EV_PID_HASHSIZE |
362 | #ifndef EV_PID_HASHSIZE |
217 | # if EV_MINIMAL |
363 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
218 | # define EV_PID_HASHSIZE 1 |
|
|
219 | # else |
|
|
220 | # define EV_PID_HASHSIZE 16 |
|
|
221 | # endif |
|
|
222 | #endif |
364 | #endif |
223 | |
365 | |
224 | #ifndef EV_INOTIFY_HASHSIZE |
366 | #ifndef EV_INOTIFY_HASHSIZE |
225 | # if EV_MINIMAL |
367 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
226 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
227 | # else |
|
|
228 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
229 | # endif |
|
|
230 | #endif |
368 | #endif |
231 | |
369 | |
232 | #ifndef EV_USE_EVENTFD |
370 | #ifndef EV_USE_EVENTFD |
233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
371 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
234 | # define EV_USE_EVENTFD 1 |
372 | # define EV_USE_EVENTFD EV_FEATURE_OS |
235 | # else |
373 | # else |
236 | # define EV_USE_EVENTFD 0 |
374 | # define EV_USE_EVENTFD 0 |
237 | # endif |
375 | # endif |
238 | #endif |
376 | #endif |
239 | |
377 | |
|
|
378 | #ifndef EV_USE_SIGNALFD |
|
|
379 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
380 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
381 | # else |
|
|
382 | # define EV_USE_SIGNALFD 0 |
|
|
383 | # endif |
|
|
384 | #endif |
|
|
385 | |
|
|
386 | #if 0 /* debugging */ |
|
|
387 | # define EV_VERIFY 3 |
|
|
388 | # define EV_USE_4HEAP 1 |
|
|
389 | # define EV_HEAP_CACHE_AT 1 |
|
|
390 | #endif |
|
|
391 | |
|
|
392 | #ifndef EV_VERIFY |
|
|
393 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
|
|
394 | #endif |
|
|
395 | |
|
|
396 | #ifndef EV_USE_4HEAP |
|
|
397 | # define EV_USE_4HEAP EV_FEATURE_DATA |
|
|
398 | #endif |
|
|
399 | |
|
|
400 | #ifndef EV_HEAP_CACHE_AT |
|
|
401 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
402 | #endif |
|
|
403 | |
|
|
404 | #ifdef __ANDROID__ |
|
|
405 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
406 | # undef EV_USE_SELECT |
|
|
407 | # define EV_USE_SELECT 0 |
|
|
408 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
409 | # undef EV_USE_CLOCK_SYSCALL |
|
|
410 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
411 | #endif |
|
|
412 | |
|
|
413 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
414 | #ifdef _AIX |
|
|
415 | /* AIX has a completely broken poll.h header */ |
|
|
416 | # undef EV_USE_POLL |
|
|
417 | # define EV_USE_POLL 0 |
|
|
418 | #endif |
|
|
419 | |
|
|
420 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
421 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
422 | #if EV_USE_CLOCK_SYSCALL |
|
|
423 | # include <sys/syscall.h> |
|
|
424 | # ifdef SYS_clock_gettime |
|
|
425 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
426 | # undef EV_USE_MONOTONIC |
|
|
427 | # define EV_USE_MONOTONIC 1 |
|
|
428 | # define EV_NEED_SYSCALL 1 |
|
|
429 | # else |
|
|
430 | # undef EV_USE_CLOCK_SYSCALL |
|
|
431 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
432 | # endif |
|
|
433 | #endif |
|
|
434 | |
240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
435 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
241 | |
436 | |
242 | #ifndef CLOCK_MONOTONIC |
437 | #ifndef CLOCK_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
438 | # undef EV_USE_MONOTONIC |
244 | # define EV_USE_MONOTONIC 0 |
439 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
252 | #if !EV_STAT_ENABLE |
447 | #if !EV_STAT_ENABLE |
253 | # undef EV_USE_INOTIFY |
448 | # undef EV_USE_INOTIFY |
254 | # define EV_USE_INOTIFY 0 |
449 | # define EV_USE_INOTIFY 0 |
255 | #endif |
450 | #endif |
256 | |
451 | |
|
|
452 | #if __linux && EV_USE_IOURING |
|
|
453 | # include <linux/fs.h> |
|
|
454 | # ifndef RWF_SYNC |
|
|
455 | # undef EV_USE_IOURING |
|
|
456 | # define EV_USE_IOURING 0 |
|
|
457 | # endif |
|
|
458 | #endif |
|
|
459 | |
257 | #if !EV_USE_NANOSLEEP |
460 | #if !EV_USE_NANOSLEEP |
258 | # ifndef _WIN32 |
461 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
462 | # if !defined _WIN32 && !defined __hpux |
259 | # include <sys/select.h> |
463 | # include <sys/select.h> |
260 | # endif |
464 | # endif |
261 | #endif |
465 | #endif |
262 | |
466 | |
|
|
467 | #if EV_USE_LINUXAIO |
|
|
468 | # include <sys/syscall.h> |
|
|
469 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
470 | # define EV_NEED_SYSCALL 1 |
|
|
471 | # else |
|
|
472 | # undef EV_USE_LINUXAIO |
|
|
473 | # define EV_USE_LINUXAIO 0 |
|
|
474 | # endif |
|
|
475 | #endif |
|
|
476 | |
|
|
477 | #if EV_USE_IOURING |
|
|
478 | # include <sys/syscall.h> |
|
|
479 | # if !SYS_io_uring_setup && __linux && !__alpha |
|
|
480 | # define SYS_io_uring_setup 425 |
|
|
481 | # define SYS_io_uring_enter 426 |
|
|
482 | # define SYS_io_uring_wregister 427 |
|
|
483 | # endif |
|
|
484 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
485 | # define EV_NEED_SYSCALL 1 |
|
|
486 | # else |
|
|
487 | # undef EV_USE_IOURING |
|
|
488 | # define EV_USE_IOURING 0 |
|
|
489 | # endif |
|
|
490 | #endif |
|
|
491 | |
263 | #if EV_USE_INOTIFY |
492 | #if EV_USE_INOTIFY |
|
|
493 | # include <sys/statfs.h> |
264 | # include <sys/inotify.h> |
494 | # include <sys/inotify.h> |
|
|
495 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
496 | # ifndef IN_DONT_FOLLOW |
|
|
497 | # undef EV_USE_INOTIFY |
|
|
498 | # define EV_USE_INOTIFY 0 |
265 | #endif |
499 | # endif |
266 | |
|
|
267 | #if EV_SELECT_IS_WINSOCKET |
|
|
268 | # include <winsock.h> |
|
|
269 | #endif |
500 | #endif |
270 | |
501 | |
271 | #if EV_USE_EVENTFD |
502 | #if EV_USE_EVENTFD |
272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
503 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
273 | # include <stdint.h> |
504 | # include <stdint.h> |
274 | # ifdef __cplusplus |
505 | # ifndef EFD_NONBLOCK |
275 | extern "C" { |
506 | # define EFD_NONBLOCK O_NONBLOCK |
276 | # endif |
507 | # endif |
277 | int eventfd (unsigned int initval, int flags); |
508 | # ifndef EFD_CLOEXEC |
278 | # ifdef __cplusplus |
509 | # ifdef O_CLOEXEC |
279 | } |
510 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
511 | # else |
|
|
512 | # define EFD_CLOEXEC 02000000 |
|
|
513 | # endif |
280 | # endif |
514 | # endif |
|
|
515 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
516 | #endif |
|
|
517 | |
|
|
518 | #if EV_USE_SIGNALFD |
|
|
519 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
520 | # include <stdint.h> |
|
|
521 | # ifndef SFD_NONBLOCK |
|
|
522 | # define SFD_NONBLOCK O_NONBLOCK |
281 | #endif |
523 | # endif |
|
|
524 | # ifndef SFD_CLOEXEC |
|
|
525 | # ifdef O_CLOEXEC |
|
|
526 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
527 | # else |
|
|
528 | # define SFD_CLOEXEC 02000000 |
|
|
529 | # endif |
|
|
530 | # endif |
|
|
531 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
282 | |
532 | |
283 | /**/ |
533 | struct signalfd_siginfo |
|
|
534 | { |
|
|
535 | uint32_t ssi_signo; |
|
|
536 | char pad[128 - sizeof (uint32_t)]; |
|
|
537 | }; |
|
|
538 | #endif |
|
|
539 | |
|
|
540 | /*****************************************************************************/ |
|
|
541 | |
|
|
542 | #if EV_VERIFY >= 3 |
|
|
543 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
544 | #else |
|
|
545 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
546 | #endif |
284 | |
547 | |
285 | /* |
548 | /* |
286 | * This is used to avoid floating point rounding problems. |
549 | * This is used to work around floating point rounding problems. |
287 | * It is added to ev_rt_now when scheduling periodics |
|
|
288 | * to ensure progress, time-wise, even when rounding |
|
|
289 | * errors are against us. |
|
|
290 | * This value is good at least till the year 4000. |
550 | * This value is good at least till the year 4000. |
291 | * Better solutions welcome. |
|
|
292 | */ |
551 | */ |
293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
552 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
553 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
294 | |
554 | |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
555 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
556 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
298 | |
557 | |
|
|
558 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
559 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
560 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
561 | #define EV_TSTAMP_HUGE \ |
|
|
562 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
563 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
564 | : 2147483647.) \ |
|
|
565 | |
|
|
566 | #ifndef EV_TS_CONST |
|
|
567 | # define EV_TS_CONST(nv) nv |
|
|
568 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
569 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
|
|
570 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
571 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
572 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
573 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
574 | #endif |
|
|
575 | |
|
|
576 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
577 | /* ECB.H BEGIN */ |
|
|
578 | /* |
|
|
579 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
580 | * |
|
|
581 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
582 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
583 | * All rights reserved. |
|
|
584 | * |
|
|
585 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
586 | * tion, are permitted provided that the following conditions are met: |
|
|
587 | * |
|
|
588 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
589 | * this list of conditions and the following disclaimer. |
|
|
590 | * |
|
|
591 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
592 | * notice, this list of conditions and the following disclaimer in the |
|
|
593 | * documentation and/or other materials provided with the distribution. |
|
|
594 | * |
|
|
595 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
596 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
597 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
598 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
599 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
600 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
601 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
602 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
603 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
604 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
605 | * |
|
|
606 | * Alternatively, the contents of this file may be used under the terms of |
|
|
607 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
608 | * in which case the provisions of the GPL are applicable instead of |
|
|
609 | * the above. If you wish to allow the use of your version of this file |
|
|
610 | * only under the terms of the GPL and not to allow others to use your |
|
|
611 | * version of this file under the BSD license, indicate your decision |
|
|
612 | * by deleting the provisions above and replace them with the notice |
|
|
613 | * and other provisions required by the GPL. If you do not delete the |
|
|
614 | * provisions above, a recipient may use your version of this file under |
|
|
615 | * either the BSD or the GPL. |
|
|
616 | */ |
|
|
617 | |
|
|
618 | #ifndef ECB_H |
|
|
619 | #define ECB_H |
|
|
620 | |
|
|
621 | /* 16 bits major, 16 bits minor */ |
|
|
622 | #define ECB_VERSION 0x00010006 |
|
|
623 | |
|
|
624 | #ifdef _WIN32 |
|
|
625 | typedef signed char int8_t; |
|
|
626 | typedef unsigned char uint8_t; |
|
|
627 | typedef signed short int16_t; |
|
|
628 | typedef unsigned short uint16_t; |
|
|
629 | typedef signed int int32_t; |
|
|
630 | typedef unsigned int uint32_t; |
299 | #if __GNUC__ >= 4 |
631 | #if __GNUC__ |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
632 | typedef signed long long int64_t; |
301 | # define noinline __attribute__ ((noinline)) |
633 | typedef unsigned long long uint64_t; |
|
|
634 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
635 | typedef signed __int64 int64_t; |
|
|
636 | typedef unsigned __int64 uint64_t; |
|
|
637 | #endif |
|
|
638 | #ifdef _WIN64 |
|
|
639 | #define ECB_PTRSIZE 8 |
|
|
640 | typedef uint64_t uintptr_t; |
|
|
641 | typedef int64_t intptr_t; |
|
|
642 | #else |
|
|
643 | #define ECB_PTRSIZE 4 |
|
|
644 | typedef uint32_t uintptr_t; |
|
|
645 | typedef int32_t intptr_t; |
|
|
646 | #endif |
302 | #else |
647 | #else |
303 | # define expect(expr,value) (expr) |
648 | #include <inttypes.h> |
304 | # define noinline |
649 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
650 | #define ECB_PTRSIZE 8 |
306 | # define inline |
651 | #else |
|
|
652 | #define ECB_PTRSIZE 4 |
|
|
653 | #endif |
307 | # endif |
654 | #endif |
|
|
655 | |
|
|
656 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
657 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
658 | |
|
|
659 | /* work around x32 idiocy by defining proper macros */ |
|
|
660 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
661 | #if _ILP32 |
|
|
662 | #define ECB_AMD64_X32 1 |
|
|
663 | #else |
|
|
664 | #define ECB_AMD64 1 |
308 | #endif |
665 | #endif |
|
|
666 | #endif |
309 | |
667 | |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
668 | /* many compilers define _GNUC_ to some versions but then only implement |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
669 | * what their idiot authors think are the "more important" extensions, |
312 | #define inline_size static inline |
670 | * causing enormous grief in return for some better fake benchmark numbers. |
313 | |
671 | * or so. |
314 | #if EV_MINIMAL |
672 | * we try to detect these and simply assume they are not gcc - if they have |
315 | # define inline_speed static noinline |
673 | * an issue with that they should have done it right in the first place. |
|
|
674 | */ |
|
|
675 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
676 | #define ECB_GCC_VERSION(major,minor) 0 |
316 | #else |
677 | #else |
|
|
678 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
679 | #endif |
|
|
680 | |
|
|
681 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
682 | |
|
|
683 | #if __clang__ && defined __has_builtin |
|
|
684 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
685 | #else |
|
|
686 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
687 | #endif |
|
|
688 | |
|
|
689 | #if __clang__ && defined __has_extension |
|
|
690 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
691 | #else |
|
|
692 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
693 | #endif |
|
|
694 | |
|
|
695 | #define ECB_CPP (__cplusplus+0) |
|
|
696 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
697 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
698 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
699 | |
|
|
700 | #if ECB_CPP |
|
|
701 | #define ECB_C 0 |
|
|
702 | #define ECB_STDC_VERSION 0 |
|
|
703 | #else |
|
|
704 | #define ECB_C 1 |
|
|
705 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
706 | #endif |
|
|
707 | |
|
|
708 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
709 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
710 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
711 | |
|
|
712 | #if ECB_CPP |
|
|
713 | #define ECB_EXTERN_C extern "C" |
|
|
714 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
715 | #define ECB_EXTERN_C_END } |
|
|
716 | #else |
|
|
717 | #define ECB_EXTERN_C extern |
|
|
718 | #define ECB_EXTERN_C_BEG |
|
|
719 | #define ECB_EXTERN_C_END |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | /*****************************************************************************/ |
|
|
723 | |
|
|
724 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
725 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
726 | |
|
|
727 | #if ECB_NO_THREADS |
|
|
728 | #define ECB_NO_SMP 1 |
|
|
729 | #endif |
|
|
730 | |
|
|
731 | #if ECB_NO_SMP |
|
|
732 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
733 | #endif |
|
|
734 | |
|
|
735 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
736 | #if __xlC__ && ECB_CPP |
|
|
737 | #include <builtins.h> |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | #if 1400 <= _MSC_VER |
|
|
741 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
742 | #endif |
|
|
743 | |
|
|
744 | #ifndef ECB_MEMORY_FENCE |
|
|
745 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
746 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
747 | #if __i386 || __i386__ |
|
|
748 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
749 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
750 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
751 | #elif ECB_GCC_AMD64 |
|
|
752 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
753 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
754 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
755 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
756 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
757 | #elif defined __ARM_ARCH_2__ \ |
|
|
758 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
759 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
760 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
761 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
762 | || defined __ARM_ARCH_5TEJ__ |
|
|
763 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
764 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
765 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
766 | || defined __ARM_ARCH_6T2__ |
|
|
767 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
768 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
769 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
770 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
771 | #elif __aarch64__ |
|
|
772 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
773 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
774 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
775 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
776 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
777 | #elif defined __s390__ || defined __s390x__ |
|
|
778 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
779 | #elif defined __mips__ |
|
|
780 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
781 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
782 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
783 | #elif defined __alpha__ |
|
|
784 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
785 | #elif defined __hppa__ |
|
|
786 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
787 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
788 | #elif defined __ia64__ |
|
|
789 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
790 | #elif defined __m68k__ |
|
|
791 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
792 | #elif defined __m88k__ |
|
|
793 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
794 | #elif defined __sh__ |
|
|
795 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
796 | #endif |
|
|
797 | #endif |
|
|
798 | #endif |
|
|
799 | |
|
|
800 | #ifndef ECB_MEMORY_FENCE |
|
|
801 | #if ECB_GCC_VERSION(4,7) |
|
|
802 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
803 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
804 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
805 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
806 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
807 | |
|
|
808 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
809 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
810 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
811 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
812 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
813 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
814 | |
|
|
815 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
816 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
817 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
818 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
819 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
820 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
821 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
822 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
823 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
824 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
825 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
826 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
827 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
828 | #elif defined _WIN32 |
|
|
829 | #include <WinNT.h> |
|
|
830 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
831 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
832 | #include <mbarrier.h> |
|
|
833 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
834 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
835 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
836 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
837 | #elif __xlC__ |
|
|
838 | #define ECB_MEMORY_FENCE __sync () |
|
|
839 | #endif |
|
|
840 | #endif |
|
|
841 | |
|
|
842 | #ifndef ECB_MEMORY_FENCE |
|
|
843 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
844 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
845 | /* not just C11 atomics and atomic accesses */ |
|
|
846 | #include <stdatomic.h> |
|
|
847 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
848 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
849 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
850 | #endif |
|
|
851 | #endif |
|
|
852 | |
|
|
853 | #ifndef ECB_MEMORY_FENCE |
|
|
854 | #if !ECB_AVOID_PTHREADS |
|
|
855 | /* |
|
|
856 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
857 | * or failure to find pthread.h, then you should implement |
|
|
858 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
859 | * OR provide pthread.h and link against the posix thread library |
|
|
860 | * of your system. |
|
|
861 | */ |
|
|
862 | #include <pthread.h> |
|
|
863 | #define ECB_NEEDS_PTHREADS 1 |
|
|
864 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
865 | |
|
|
866 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
867 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
868 | #endif |
|
|
869 | #endif |
|
|
870 | |
|
|
871 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
872 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
873 | #endif |
|
|
874 | |
|
|
875 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
876 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
877 | #endif |
|
|
878 | |
|
|
879 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
880 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
881 | #endif |
|
|
882 | |
|
|
883 | /*****************************************************************************/ |
|
|
884 | |
|
|
885 | #if ECB_CPP |
|
|
886 | #define ecb_inline static inline |
|
|
887 | #elif ECB_GCC_VERSION(2,5) |
|
|
888 | #define ecb_inline static __inline__ |
|
|
889 | #elif ECB_C99 |
|
|
890 | #define ecb_inline static inline |
|
|
891 | #else |
|
|
892 | #define ecb_inline static |
|
|
893 | #endif |
|
|
894 | |
|
|
895 | #if ECB_GCC_VERSION(3,3) |
|
|
896 | #define ecb_restrict __restrict__ |
|
|
897 | #elif ECB_C99 |
|
|
898 | #define ecb_restrict restrict |
|
|
899 | #else |
|
|
900 | #define ecb_restrict |
|
|
901 | #endif |
|
|
902 | |
|
|
903 | typedef int ecb_bool; |
|
|
904 | |
|
|
905 | #define ECB_CONCAT_(a, b) a ## b |
|
|
906 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
907 | #define ECB_STRINGIFY_(a) # a |
|
|
908 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
909 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
910 | |
|
|
911 | #define ecb_function_ ecb_inline |
|
|
912 | |
|
|
913 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
914 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
915 | #else |
|
|
916 | #define ecb_attribute(attrlist) |
|
|
917 | #endif |
|
|
918 | |
|
|
919 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
920 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
921 | #else |
|
|
922 | /* possible C11 impl for integral types |
|
|
923 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
924 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
925 | |
|
|
926 | #define ecb_is_constant(expr) 0 |
|
|
927 | #endif |
|
|
928 | |
|
|
929 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
930 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
931 | #else |
|
|
932 | #define ecb_expect(expr,value) (expr) |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
936 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
937 | #else |
|
|
938 | #define ecb_prefetch(addr,rw,locality) |
|
|
939 | #endif |
|
|
940 | |
|
|
941 | /* no emulation for ecb_decltype */ |
|
|
942 | #if ECB_CPP11 |
|
|
943 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
944 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
945 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
946 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
947 | #define ecb_decltype(x) __typeof__ (x) |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | #if _MSC_VER >= 1300 |
|
|
951 | #define ecb_deprecated __declspec (deprecated) |
|
|
952 | #else |
|
|
953 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if _MSC_VER >= 1500 |
|
|
957 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
958 | #elif ECB_GCC_VERSION(4,5) |
|
|
959 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
960 | #else |
|
|
961 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | #if _MSC_VER >= 1400 |
|
|
965 | #define ecb_noinline __declspec (noinline) |
|
|
966 | #else |
|
|
967 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
968 | #endif |
|
|
969 | |
|
|
970 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
971 | #define ecb_const ecb_attribute ((__const__)) |
|
|
972 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
973 | |
|
|
974 | #if ECB_C11 || __IBMC_NORETURN |
|
|
975 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
976 | #define ecb_noreturn _Noreturn |
|
|
977 | #elif ECB_CPP11 |
|
|
978 | #define ecb_noreturn [[noreturn]] |
|
|
979 | #elif _MSC_VER >= 1200 |
|
|
980 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
981 | #define ecb_noreturn __declspec (noreturn) |
|
|
982 | #else |
|
|
983 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
984 | #endif |
|
|
985 | |
|
|
986 | #if ECB_GCC_VERSION(4,3) |
|
|
987 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
988 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
989 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
990 | #else |
|
|
991 | #define ecb_artificial |
|
|
992 | #define ecb_hot |
|
|
993 | #define ecb_cold |
|
|
994 | #endif |
|
|
995 | |
|
|
996 | /* put around conditional expressions if you are very sure that the */ |
|
|
997 | /* expression is mostly true or mostly false. note that these return */ |
|
|
998 | /* booleans, not the expression. */ |
|
|
999 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
|
|
1000 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
1001 | /* for compatibility to the rest of the world */ |
|
|
1002 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
1003 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
1004 | |
|
|
1005 | /* count trailing zero bits and count # of one bits */ |
|
|
1006 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1007 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1008 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1009 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
1010 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
1011 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
1012 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
1013 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
1014 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
1015 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
1016 | /* no popcountll */ |
|
|
1017 | #else |
|
|
1018 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
1019 | ecb_function_ ecb_const int |
|
|
1020 | ecb_ctz32 (uint32_t x) |
|
|
1021 | { |
|
|
1022 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1023 | unsigned long r; |
|
|
1024 | _BitScanForward (&r, x); |
|
|
1025 | return (int)r; |
|
|
1026 | #else |
|
|
1027 | int r = 0; |
|
|
1028 | |
|
|
1029 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1030 | |
|
|
1031 | #if ECB_branchless_on_i386 |
|
|
1032 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1033 | r += !!(x & 0xcccccccc) << 1; |
|
|
1034 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1035 | r += !!(x & 0xff00ff00) << 3; |
|
|
1036 | r += !!(x & 0xffff0000) << 4; |
|
|
1037 | #else |
|
|
1038 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1039 | if (x & 0xcccccccc) r += 2; |
|
|
1040 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1041 | if (x & 0xff00ff00) r += 8; |
|
|
1042 | if (x & 0xffff0000) r += 16; |
|
|
1043 | #endif |
|
|
1044 | |
|
|
1045 | return r; |
|
|
1046 | #endif |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1050 | ecb_function_ ecb_const int |
|
|
1051 | ecb_ctz64 (uint64_t x) |
|
|
1052 | { |
|
|
1053 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1054 | unsigned long r; |
|
|
1055 | _BitScanForward64 (&r, x); |
|
|
1056 | return (int)r; |
|
|
1057 | #else |
|
|
1058 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1059 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1060 | #endif |
|
|
1061 | } |
|
|
1062 | |
|
|
1063 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1064 | ecb_function_ ecb_const int |
|
|
1065 | ecb_popcount32 (uint32_t x) |
|
|
1066 | { |
|
|
1067 | x -= (x >> 1) & 0x55555555; |
|
|
1068 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1069 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1070 | x *= 0x01010101; |
|
|
1071 | |
|
|
1072 | return x >> 24; |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1076 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1077 | { |
|
|
1078 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1079 | unsigned long r; |
|
|
1080 | _BitScanReverse (&r, x); |
|
|
1081 | return (int)r; |
|
|
1082 | #else |
|
|
1083 | int r = 0; |
|
|
1084 | |
|
|
1085 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1086 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1087 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1088 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1089 | if (x >> 1) { r += 1; } |
|
|
1090 | |
|
|
1091 | return r; |
|
|
1092 | #endif |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1096 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1097 | { |
|
|
1098 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1099 | unsigned long r; |
|
|
1100 | _BitScanReverse64 (&r, x); |
|
|
1101 | return (int)r; |
|
|
1102 | #else |
|
|
1103 | int r = 0; |
|
|
1104 | |
|
|
1105 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1106 | |
|
|
1107 | return r + ecb_ld32 (x); |
|
|
1108 | #endif |
|
|
1109 | } |
|
|
1110 | #endif |
|
|
1111 | |
|
|
1112 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1113 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1114 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1115 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1116 | |
|
|
1117 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1118 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1119 | { |
|
|
1120 | return ( (x * 0x0802U & 0x22110U) |
|
|
1121 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1125 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1126 | { |
|
|
1127 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1128 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1129 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1130 | x = ( x >> 8 ) | ( x << 8); |
|
|
1131 | |
|
|
1132 | return x; |
|
|
1133 | } |
|
|
1134 | |
|
|
1135 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1136 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1137 | { |
|
|
1138 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1139 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1140 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1141 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1142 | x = ( x >> 16 ) | ( x << 16); |
|
|
1143 | |
|
|
1144 | return x; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1148 | /* so for this version we are lazy */ |
|
|
1149 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1150 | ecb_function_ ecb_const int |
|
|
1151 | ecb_popcount64 (uint64_t x) |
|
|
1152 | { |
|
|
1153 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1157 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1158 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1159 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1160 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1161 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1162 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1163 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1164 | |
|
|
1165 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1166 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1167 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1168 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1169 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1170 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1171 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1172 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1173 | |
|
|
1174 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1175 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1176 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1177 | #else |
|
|
1178 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1179 | #endif |
|
|
1180 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1181 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1182 | #elif _MSC_VER |
|
|
1183 | #include <stdlib.h> |
|
|
1184 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1185 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1186 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1187 | #else |
|
|
1188 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1189 | ecb_function_ ecb_const uint16_t |
|
|
1190 | ecb_bswap16 (uint16_t x) |
|
|
1191 | { |
|
|
1192 | return ecb_rotl16 (x, 8); |
|
|
1193 | } |
|
|
1194 | |
|
|
1195 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1196 | ecb_function_ ecb_const uint32_t |
|
|
1197 | ecb_bswap32 (uint32_t x) |
|
|
1198 | { |
|
|
1199 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1200 | } |
|
|
1201 | |
|
|
1202 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1203 | ecb_function_ ecb_const uint64_t |
|
|
1204 | ecb_bswap64 (uint64_t x) |
|
|
1205 | { |
|
|
1206 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1207 | } |
|
|
1208 | #endif |
|
|
1209 | |
|
|
1210 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1211 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1212 | #else |
|
|
1213 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1214 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1215 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1216 | #endif |
|
|
1217 | |
|
|
1218 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1219 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1220 | |
|
|
1221 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1222 | ecb_inline ecb_const uint32_t |
|
|
1223 | ecb_byteorder_helper (void) |
|
|
1224 | { |
|
|
1225 | /* the union code still generates code under pressure in gcc, */ |
|
|
1226 | /* but less than using pointers, and always seems to */ |
|
|
1227 | /* successfully return a constant. */ |
|
|
1228 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1229 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1230 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1231 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1232 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1233 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1234 | return 0x44332211; |
|
|
1235 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1236 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1237 | #define ECB_BIG_ENDIAN 1 |
|
|
1238 | return 0x11223344; |
|
|
1239 | #else |
|
|
1240 | union |
|
|
1241 | { |
|
|
1242 | uint8_t c[4]; |
|
|
1243 | uint32_t u; |
|
|
1244 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1245 | return u.u; |
|
|
1246 | #endif |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1250 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1251 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1252 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1253 | |
|
|
1254 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1255 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1256 | #else |
|
|
1257 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1258 | #endif |
|
|
1259 | |
|
|
1260 | #if ECB_CPP |
|
|
1261 | template<typename T> |
|
|
1262 | static inline T ecb_div_rd (T val, T div) |
|
|
1263 | { |
|
|
1264 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1265 | } |
|
|
1266 | template<typename T> |
|
|
1267 | static inline T ecb_div_ru (T val, T div) |
|
|
1268 | { |
|
|
1269 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1270 | } |
|
|
1271 | #else |
|
|
1272 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1273 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1274 | #endif |
|
|
1275 | |
|
|
1276 | #if ecb_cplusplus_does_not_suck |
|
|
1277 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1278 | template<typename T, int N> |
|
|
1279 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1280 | { |
|
|
1281 | return N; |
|
|
1282 | } |
|
|
1283 | #else |
|
|
1284 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1285 | #endif |
|
|
1286 | |
|
|
1287 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1288 | ecb_function_ ecb_const uint32_t |
|
|
1289 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1290 | { |
|
|
1291 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1292 | int e = (x >> 10) & 0x001f; |
|
|
1293 | unsigned int m = x & 0x03ff; |
|
|
1294 | |
|
|
1295 | if (ecb_expect_false (e == 31)) |
|
|
1296 | /* infinity or NaN */ |
|
|
1297 | e = 255 - (127 - 15); |
|
|
1298 | else if (ecb_expect_false (!e)) |
|
|
1299 | { |
|
|
1300 | if (ecb_expect_true (!m)) |
|
|
1301 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1302 | e = 0 - (127 - 15); |
|
|
1303 | else |
|
|
1304 | { |
|
|
1305 | /* subnormal, renormalise */ |
|
|
1306 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1307 | |
|
|
1308 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1309 | e -= s - 1; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1314 | e += 127 - 15; |
|
|
1315 | |
|
|
1316 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1317 | } |
|
|
1318 | |
|
|
1319 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1320 | ecb_function_ ecb_const uint16_t |
|
|
1321 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1322 | { |
|
|
1323 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1324 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1325 | unsigned int m = x & 0x007fffff; |
|
|
1326 | |
|
|
1327 | x &= 0x7fffffff; |
|
|
1328 | |
|
|
1329 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1330 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1331 | { |
|
|
1332 | /* mantissa round-to-even */ |
|
|
1333 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1334 | |
|
|
1335 | /* handle overflow */ |
|
|
1336 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1337 | { |
|
|
1338 | m >>= 1; |
|
|
1339 | e += 1; |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1343 | } |
|
|
1344 | |
|
|
1345 | /* handle large numbers and infinity */ |
|
|
1346 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1347 | return s | 0x7c00; |
|
|
1348 | |
|
|
1349 | /* handle zero, subnormals and small numbers */ |
|
|
1350 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1351 | { |
|
|
1352 | /* zero */ |
|
|
1353 | if (ecb_expect_true (!x)) |
|
|
1354 | return s; |
|
|
1355 | |
|
|
1356 | /* handle subnormals */ |
|
|
1357 | |
|
|
1358 | /* too small, will be zero */ |
|
|
1359 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1360 | return s; |
|
|
1361 | |
|
|
1362 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1363 | |
|
|
1364 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1365 | { |
|
|
1366 | unsigned int bits = 14 - e; |
|
|
1367 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1368 | unsigned int even = (m >> bits) & 1; |
|
|
1369 | |
|
|
1370 | /* if this overflows, we will end up with a normalised number */ |
|
|
1371 | m = (m + half + even) >> bits; |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | return s | m; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1378 | m >>= 13; |
|
|
1379 | |
|
|
1380 | return s | 0x7c00 | m | !m; |
|
|
1381 | } |
|
|
1382 | |
|
|
1383 | /*******************************************************************************/ |
|
|
1384 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1385 | |
|
|
1386 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1387 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1388 | #if 0 \ |
|
|
1389 | || __i386 || __i386__ \ |
|
|
1390 | || ECB_GCC_AMD64 \ |
|
|
1391 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1392 | || defined __s390__ || defined __s390x__ \ |
|
|
1393 | || defined __mips__ \ |
|
|
1394 | || defined __alpha__ \ |
|
|
1395 | || defined __hppa__ \ |
|
|
1396 | || defined __ia64__ \ |
|
|
1397 | || defined __m68k__ \ |
|
|
1398 | || defined __m88k__ \ |
|
|
1399 | || defined __sh__ \ |
|
|
1400 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1401 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1402 | || defined __aarch64__ |
|
|
1403 | #define ECB_STDFP 1 |
|
|
1404 | #include <string.h> /* for memcpy */ |
|
|
1405 | #else |
|
|
1406 | #define ECB_STDFP 0 |
|
|
1407 | #endif |
|
|
1408 | |
|
|
1409 | #ifndef ECB_NO_LIBM |
|
|
1410 | |
|
|
1411 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1412 | |
|
|
1413 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1414 | #ifdef INFINITY |
|
|
1415 | #define ECB_INFINITY INFINITY |
|
|
1416 | #else |
|
|
1417 | #define ECB_INFINITY HUGE_VAL |
|
|
1418 | #endif |
|
|
1419 | |
|
|
1420 | #ifdef NAN |
|
|
1421 | #define ECB_NAN NAN |
|
|
1422 | #else |
|
|
1423 | #define ECB_NAN ECB_INFINITY |
|
|
1424 | #endif |
|
|
1425 | |
|
|
1426 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1427 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1428 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1429 | #else |
|
|
1430 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1431 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1432 | #endif |
|
|
1433 | |
|
|
1434 | /* convert a float to ieee single/binary32 */ |
|
|
1435 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1436 | ecb_function_ ecb_const uint32_t |
|
|
1437 | ecb_float_to_binary32 (float x) |
|
|
1438 | { |
|
|
1439 | uint32_t r; |
|
|
1440 | |
|
|
1441 | #if ECB_STDFP |
|
|
1442 | memcpy (&r, &x, 4); |
|
|
1443 | #else |
|
|
1444 | /* slow emulation, works for anything but -0 */ |
|
|
1445 | uint32_t m; |
|
|
1446 | int e; |
|
|
1447 | |
|
|
1448 | if (x == 0e0f ) return 0x00000000U; |
|
|
1449 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1450 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1451 | if (x != x ) return 0x7fbfffffU; |
|
|
1452 | |
|
|
1453 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1454 | |
|
|
1455 | r = m & 0x80000000U; |
|
|
1456 | |
|
|
1457 | if (r) |
|
|
1458 | m = -m; |
|
|
1459 | |
|
|
1460 | if (e <= -126) |
|
|
1461 | { |
|
|
1462 | m &= 0xffffffU; |
|
|
1463 | m >>= (-125 - e); |
|
|
1464 | e = -126; |
|
|
1465 | } |
|
|
1466 | |
|
|
1467 | r |= (e + 126) << 23; |
|
|
1468 | r |= m & 0x7fffffU; |
|
|
1469 | #endif |
|
|
1470 | |
|
|
1471 | return r; |
|
|
1472 | } |
|
|
1473 | |
|
|
1474 | /* converts an ieee single/binary32 to a float */ |
|
|
1475 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1476 | ecb_function_ ecb_const float |
|
|
1477 | ecb_binary32_to_float (uint32_t x) |
|
|
1478 | { |
|
|
1479 | float r; |
|
|
1480 | |
|
|
1481 | #if ECB_STDFP |
|
|
1482 | memcpy (&r, &x, 4); |
|
|
1483 | #else |
|
|
1484 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1485 | int neg = x >> 31; |
|
|
1486 | int e = (x >> 23) & 0xffU; |
|
|
1487 | |
|
|
1488 | x &= 0x7fffffU; |
|
|
1489 | |
|
|
1490 | if (e) |
|
|
1491 | x |= 0x800000U; |
|
|
1492 | else |
|
|
1493 | e = 1; |
|
|
1494 | |
|
|
1495 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1496 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1497 | |
|
|
1498 | r = neg ? -r : r; |
|
|
1499 | #endif |
|
|
1500 | |
|
|
1501 | return r; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | /* convert a double to ieee double/binary64 */ |
|
|
1505 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1506 | ecb_function_ ecb_const uint64_t |
|
|
1507 | ecb_double_to_binary64 (double x) |
|
|
1508 | { |
|
|
1509 | uint64_t r; |
|
|
1510 | |
|
|
1511 | #if ECB_STDFP |
|
|
1512 | memcpy (&r, &x, 8); |
|
|
1513 | #else |
|
|
1514 | /* slow emulation, works for anything but -0 */ |
|
|
1515 | uint64_t m; |
|
|
1516 | int e; |
|
|
1517 | |
|
|
1518 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1519 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1520 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1521 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1522 | |
|
|
1523 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1524 | |
|
|
1525 | r = m & 0x8000000000000000;; |
|
|
1526 | |
|
|
1527 | if (r) |
|
|
1528 | m = -m; |
|
|
1529 | |
|
|
1530 | if (e <= -1022) |
|
|
1531 | { |
|
|
1532 | m &= 0x1fffffffffffffU; |
|
|
1533 | m >>= (-1021 - e); |
|
|
1534 | e = -1022; |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1538 | r |= m & 0xfffffffffffffU; |
|
|
1539 | #endif |
|
|
1540 | |
|
|
1541 | return r; |
|
|
1542 | } |
|
|
1543 | |
|
|
1544 | /* converts an ieee double/binary64 to a double */ |
|
|
1545 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1546 | ecb_function_ ecb_const double |
|
|
1547 | ecb_binary64_to_double (uint64_t x) |
|
|
1548 | { |
|
|
1549 | double r; |
|
|
1550 | |
|
|
1551 | #if ECB_STDFP |
|
|
1552 | memcpy (&r, &x, 8); |
|
|
1553 | #else |
|
|
1554 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1555 | int neg = x >> 63; |
|
|
1556 | int e = (x >> 52) & 0x7ffU; |
|
|
1557 | |
|
|
1558 | x &= 0xfffffffffffffU; |
|
|
1559 | |
|
|
1560 | if (e) |
|
|
1561 | x |= 0x10000000000000U; |
|
|
1562 | else |
|
|
1563 | e = 1; |
|
|
1564 | |
|
|
1565 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1566 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1567 | |
|
|
1568 | r = neg ? -r : r; |
|
|
1569 | #endif |
|
|
1570 | |
|
|
1571 | return r; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | /* convert a float to ieee half/binary16 */ |
|
|
1575 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1576 | ecb_function_ ecb_const uint16_t |
|
|
1577 | ecb_float_to_binary16 (float x) |
|
|
1578 | { |
|
|
1579 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | /* convert an ieee half/binary16 to float */ |
|
|
1583 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1584 | ecb_function_ ecb_const float |
|
|
1585 | ecb_binary16_to_float (uint16_t x) |
|
|
1586 | { |
|
|
1587 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1588 | } |
|
|
1589 | |
|
|
1590 | #endif |
|
|
1591 | |
|
|
1592 | #endif |
|
|
1593 | |
|
|
1594 | /* ECB.H END */ |
|
|
1595 | |
|
|
1596 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1597 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1598 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1599 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1600 | * libev, in which cases the memory fences become nops. |
|
|
1601 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1602 | * which will then provide the memory fences. |
|
|
1603 | */ |
|
|
1604 | # error "memory fences not defined for your architecture, please report" |
|
|
1605 | #endif |
|
|
1606 | |
|
|
1607 | #ifndef ECB_MEMORY_FENCE |
|
|
1608 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1609 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1610 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1611 | #endif |
|
|
1612 | |
|
|
1613 | #define inline_size ecb_inline |
|
|
1614 | |
|
|
1615 | #if EV_FEATURE_CODE |
317 | # define inline_speed static inline |
1616 | # define inline_speed ecb_inline |
|
|
1617 | #else |
|
|
1618 | # define inline_speed ecb_noinline static |
318 | #endif |
1619 | #endif |
319 | |
1620 | |
|
|
1621 | /*****************************************************************************/ |
|
|
1622 | /* raw syscall wrappers */ |
|
|
1623 | |
|
|
1624 | #if EV_NEED_SYSCALL |
|
|
1625 | |
|
|
1626 | #include <sys/syscall.h> |
|
|
1627 | |
|
|
1628 | /* |
|
|
1629 | * define some syscall wrappers for common architectures |
|
|
1630 | * this is mostly for nice looks during debugging, not performance. |
|
|
1631 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1632 | * enough for linux aio. |
|
|
1633 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1634 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1635 | */ |
|
|
1636 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1637 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1638 | |
|
|
1639 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1640 | ({ \ |
|
|
1641 | long res; \ |
|
|
1642 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1643 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1644 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1645 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1646 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1647 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1648 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1649 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1650 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1651 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1652 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1653 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1654 | __asm__ __volatile__ ( \ |
|
|
1655 | "syscall\n\t" \ |
|
|
1656 | : "=a" (res) \ |
|
|
1657 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1658 | : "cc", "r11", "cx", "memory"); \ |
|
|
1659 | errno = -res; \ |
|
|
1660 | res; \ |
|
|
1661 | }) |
|
|
1662 | |
|
|
1663 | #endif |
|
|
1664 | |
|
|
1665 | #ifdef ev_syscall |
|
|
1666 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1667 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1668 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1669 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1670 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1671 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1672 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1673 | #else |
|
|
1674 | #define ev_syscall0(nr) syscall (nr) |
|
|
1675 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1676 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1677 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1678 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1679 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1680 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1681 | #endif |
|
|
1682 | |
|
|
1683 | #endif |
|
|
1684 | |
|
|
1685 | /*****************************************************************************/ |
|
|
1686 | |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1687 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
1688 | |
|
|
1689 | #if EV_MINPRI == EV_MAXPRI |
|
|
1690 | # define ABSPRI(w) (((W)w), 0) |
|
|
1691 | #else |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1692 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
1693 | #endif |
322 | |
1694 | |
323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1695 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
325 | |
1696 | |
326 | typedef ev_watcher *W; |
1697 | typedef ev_watcher *W; |
327 | typedef ev_watcher_list *WL; |
1698 | typedef ev_watcher_list *WL; |
328 | typedef ev_watcher_time *WT; |
1699 | typedef ev_watcher_time *WT; |
329 | |
1700 | |
330 | #define ev_active(w) ((W)(w))->active |
1701 | #define ev_active(w) ((W)(w))->active |
331 | #define ev_at(w) ((WT)(w))->at |
1702 | #define ev_at(w) ((WT)(w))->at |
332 | |
1703 | |
|
|
1704 | #if EV_USE_REALTIME |
|
|
1705 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
1706 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
1707 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
1708 | #endif |
|
|
1709 | |
333 | #if EV_USE_MONOTONIC |
1710 | #if EV_USE_MONOTONIC |
334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
335 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1711 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
1712 | #endif |
|
|
1713 | |
|
|
1714 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1715 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1716 | #endif |
|
|
1717 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1718 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1719 | #endif |
|
|
1720 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1721 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
337 | #endif |
1722 | #endif |
338 | |
1723 | |
339 | #ifdef _WIN32 |
1724 | #ifdef _WIN32 |
340 | # include "ev_win32.c" |
1725 | # include "ev_win32.c" |
341 | #endif |
1726 | #endif |
342 | |
1727 | |
343 | /*****************************************************************************/ |
1728 | /*****************************************************************************/ |
344 | |
1729 | |
|
|
1730 | #if EV_USE_LINUXAIO |
|
|
1731 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1732 | #endif |
|
|
1733 | |
|
|
1734 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1735 | |
|
|
1736 | #if EV_USE_FLOOR |
|
|
1737 | # include <math.h> |
|
|
1738 | # define ev_floor(v) floor (v) |
|
|
1739 | #else |
|
|
1740 | |
|
|
1741 | #include <float.h> |
|
|
1742 | |
|
|
1743 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1744 | ecb_noinline |
|
|
1745 | static ev_tstamp |
|
|
1746 | ev_floor (ev_tstamp v) |
|
|
1747 | { |
|
|
1748 | /* the choice of shift factor is not terribly important */ |
|
|
1749 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1750 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1751 | #else |
|
|
1752 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1753 | #endif |
|
|
1754 | |
|
|
1755 | /* special treatment for negative arguments */ |
|
|
1756 | if (ecb_expect_false (v < 0.)) |
|
|
1757 | { |
|
|
1758 | ev_tstamp f = -ev_floor (-v); |
|
|
1759 | |
|
|
1760 | return f - (f == v ? 0 : 1); |
|
|
1761 | } |
|
|
1762 | |
|
|
1763 | /* argument too large for an unsigned long? then reduce it */ |
|
|
1764 | if (ecb_expect_false (v >= shift)) |
|
|
1765 | { |
|
|
1766 | ev_tstamp f; |
|
|
1767 | |
|
|
1768 | if (v == v - 1.) |
|
|
1769 | return v; /* very large numbers are assumed to be integer */ |
|
|
1770 | |
|
|
1771 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1772 | return f + ev_floor (v - f); |
|
|
1773 | } |
|
|
1774 | |
|
|
1775 | /* fits into an unsigned long */ |
|
|
1776 | return (unsigned long)v; |
|
|
1777 | } |
|
|
1778 | |
|
|
1779 | #endif |
|
|
1780 | |
|
|
1781 | /*****************************************************************************/ |
|
|
1782 | |
|
|
1783 | #ifdef __linux |
|
|
1784 | # include <sys/utsname.h> |
|
|
1785 | #endif |
|
|
1786 | |
|
|
1787 | ecb_noinline ecb_cold |
|
|
1788 | static unsigned int |
|
|
1789 | ev_linux_version (void) |
|
|
1790 | { |
|
|
1791 | #ifdef __linux |
|
|
1792 | unsigned int v = 0; |
|
|
1793 | struct utsname buf; |
|
|
1794 | int i; |
|
|
1795 | char *p = buf.release; |
|
|
1796 | |
|
|
1797 | if (uname (&buf)) |
|
|
1798 | return 0; |
|
|
1799 | |
|
|
1800 | for (i = 3+1; --i; ) |
|
|
1801 | { |
|
|
1802 | unsigned int c = 0; |
|
|
1803 | |
|
|
1804 | for (;;) |
|
|
1805 | { |
|
|
1806 | if (*p >= '0' && *p <= '9') |
|
|
1807 | c = c * 10 + *p++ - '0'; |
|
|
1808 | else |
|
|
1809 | { |
|
|
1810 | p += *p == '.'; |
|
|
1811 | break; |
|
|
1812 | } |
|
|
1813 | } |
|
|
1814 | |
|
|
1815 | v = (v << 8) | c; |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | return v; |
|
|
1819 | #else |
|
|
1820 | return 0; |
|
|
1821 | #endif |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | /*****************************************************************************/ |
|
|
1825 | |
|
|
1826 | #if EV_AVOID_STDIO |
|
|
1827 | ecb_noinline ecb_cold |
|
|
1828 | static void |
|
|
1829 | ev_printerr (const char *msg) |
|
|
1830 | { |
|
|
1831 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1832 | } |
|
|
1833 | #endif |
|
|
1834 | |
345 | static void (*syserr_cb)(const char *msg); |
1835 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
346 | |
1836 | |
|
|
1837 | ecb_cold |
347 | void |
1838 | void |
348 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1839 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
349 | { |
1840 | { |
350 | syserr_cb = cb; |
1841 | syserr_cb = cb; |
351 | } |
1842 | } |
352 | |
1843 | |
353 | static void noinline |
1844 | ecb_noinline ecb_cold |
|
|
1845 | static void |
354 | syserr (const char *msg) |
1846 | ev_syserr (const char *msg) |
355 | { |
1847 | { |
356 | if (!msg) |
1848 | if (!msg) |
357 | msg = "(libev) system error"; |
1849 | msg = "(libev) system error"; |
358 | |
1850 | |
359 | if (syserr_cb) |
1851 | if (syserr_cb) |
360 | syserr_cb (msg); |
1852 | syserr_cb (msg); |
361 | else |
1853 | else |
362 | { |
1854 | { |
|
|
1855 | #if EV_AVOID_STDIO |
|
|
1856 | ev_printerr (msg); |
|
|
1857 | ev_printerr (": "); |
|
|
1858 | ev_printerr (strerror (errno)); |
|
|
1859 | ev_printerr ("\n"); |
|
|
1860 | #else |
363 | perror (msg); |
1861 | perror (msg); |
|
|
1862 | #endif |
364 | abort (); |
1863 | abort (); |
365 | } |
1864 | } |
366 | } |
1865 | } |
367 | |
1866 | |
368 | static void * |
1867 | static void * |
369 | ev_realloc_emul (void *ptr, long size) |
1868 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
370 | { |
1869 | { |
371 | /* some systems, notably openbsd and darwin, fail to properly |
1870 | /* some systems, notably openbsd and darwin, fail to properly |
372 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1871 | * implement realloc (x, 0) (as required by both ansi c-89 and |
373 | * the single unix specification, so work around them here. |
1872 | * the single unix specification, so work around them here. |
|
|
1873 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1874 | * despite documenting it otherwise. |
374 | */ |
1875 | */ |
375 | |
1876 | |
376 | if (size) |
1877 | if (size) |
377 | return realloc (ptr, size); |
1878 | return realloc (ptr, size); |
378 | |
1879 | |
379 | free (ptr); |
1880 | free (ptr); |
380 | return 0; |
1881 | return 0; |
381 | } |
1882 | } |
382 | |
1883 | |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1884 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
384 | |
1885 | |
|
|
1886 | ecb_cold |
385 | void |
1887 | void |
386 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1888 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
387 | { |
1889 | { |
388 | alloc = cb; |
1890 | alloc = cb; |
389 | } |
1891 | } |
390 | |
1892 | |
391 | inline_speed void * |
1893 | inline_speed void * |
… | |
… | |
393 | { |
1895 | { |
394 | ptr = alloc (ptr, size); |
1896 | ptr = alloc (ptr, size); |
395 | |
1897 | |
396 | if (!ptr && size) |
1898 | if (!ptr && size) |
397 | { |
1899 | { |
|
|
1900 | #if EV_AVOID_STDIO |
|
|
1901 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1902 | #else |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1903 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1904 | #endif |
399 | abort (); |
1905 | abort (); |
400 | } |
1906 | } |
401 | |
1907 | |
402 | return ptr; |
1908 | return ptr; |
403 | } |
1909 | } |
… | |
… | |
405 | #define ev_malloc(size) ev_realloc (0, (size)) |
1911 | #define ev_malloc(size) ev_realloc (0, (size)) |
406 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1912 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
407 | |
1913 | |
408 | /*****************************************************************************/ |
1914 | /*****************************************************************************/ |
409 | |
1915 | |
|
|
1916 | /* set in reify when reification needed */ |
|
|
1917 | #define EV_ANFD_REIFY 1 |
|
|
1918 | |
|
|
1919 | /* file descriptor info structure */ |
410 | typedef struct |
1920 | typedef struct |
411 | { |
1921 | { |
412 | WL head; |
1922 | WL head; |
413 | unsigned char events; |
1923 | unsigned char events; /* the events watched for */ |
414 | unsigned char reify; |
1924 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1925 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
|
|
1926 | unsigned char eflags; /* flags field for use by backends */ |
|
|
1927 | #if EV_USE_EPOLL |
|
|
1928 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1929 | #endif |
415 | #if EV_SELECT_IS_WINSOCKET |
1930 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
416 | SOCKET handle; |
1931 | SOCKET handle; |
417 | #endif |
1932 | #endif |
|
|
1933 | #if EV_USE_IOCP |
|
|
1934 | OVERLAPPED or, ow; |
|
|
1935 | #endif |
418 | } ANFD; |
1936 | } ANFD; |
419 | |
1937 | |
|
|
1938 | /* stores the pending event set for a given watcher */ |
420 | typedef struct |
1939 | typedef struct |
421 | { |
1940 | { |
422 | W w; |
1941 | W w; |
423 | int events; |
1942 | int events; /* the pending event set for the given watcher */ |
424 | } ANPENDING; |
1943 | } ANPENDING; |
425 | |
1944 | |
426 | #if EV_USE_INOTIFY |
1945 | #if EV_USE_INOTIFY |
427 | /* hash table entry per inotify-id */ |
1946 | /* hash table entry per inotify-id */ |
428 | typedef struct |
1947 | typedef struct |
… | |
… | |
430 | WL head; |
1949 | WL head; |
431 | } ANFS; |
1950 | } ANFS; |
432 | #endif |
1951 | #endif |
433 | |
1952 | |
434 | /* Heap Entry */ |
1953 | /* Heap Entry */ |
435 | #define EV_HEAP_CACHE_AT 0 |
|
|
436 | #if EV_HEAP_CACHE_AT |
1954 | #if EV_HEAP_CACHE_AT |
|
|
1955 | /* a heap element */ |
437 | typedef struct { |
1956 | typedef struct { |
|
|
1957 | ev_tstamp at; |
438 | WT w; |
1958 | WT w; |
439 | ev_tstamp at; |
|
|
440 | } ANHE; |
1959 | } ANHE; |
441 | |
1960 | |
442 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
1961 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
443 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
1962 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
444 | #define ANHE_at_set(he) (he).at = (he).w->at /* update at from watcher */ |
1963 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
445 | #else |
1964 | #else |
|
|
1965 | /* a heap element */ |
446 | typedef WT ANHE; |
1966 | typedef WT ANHE; |
447 | |
1967 | |
448 | #define ANHE_w(he) (he) |
1968 | #define ANHE_w(he) (he) |
449 | #define ANHE_at(he) (he)->at |
1969 | #define ANHE_at(he) (he)->at |
450 | #define ANHE_at_set(he) |
1970 | #define ANHE_at_cache(he) |
451 | #endif |
1971 | #endif |
452 | |
1972 | |
453 | #if EV_MULTIPLICITY |
1973 | #if EV_MULTIPLICITY |
454 | |
1974 | |
455 | struct ev_loop |
1975 | struct ev_loop |
… | |
… | |
461 | #undef VAR |
1981 | #undef VAR |
462 | }; |
1982 | }; |
463 | #include "ev_wrap.h" |
1983 | #include "ev_wrap.h" |
464 | |
1984 | |
465 | static struct ev_loop default_loop_struct; |
1985 | static struct ev_loop default_loop_struct; |
466 | struct ev_loop *ev_default_loop_ptr; |
1986 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
467 | |
1987 | |
468 | #else |
1988 | #else |
469 | |
1989 | |
470 | ev_tstamp ev_rt_now; |
1990 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
471 | #define VAR(name,decl) static decl; |
1991 | #define VAR(name,decl) static decl; |
472 | #include "ev_vars.h" |
1992 | #include "ev_vars.h" |
473 | #undef VAR |
1993 | #undef VAR |
474 | |
1994 | |
475 | static int ev_default_loop_ptr; |
1995 | static int ev_default_loop_ptr; |
476 | |
1996 | |
477 | #endif |
1997 | #endif |
478 | |
1998 | |
|
|
1999 | #if EV_FEATURE_API |
|
|
2000 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
|
|
2001 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
2002 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
2003 | #else |
|
|
2004 | # define EV_RELEASE_CB (void)0 |
|
|
2005 | # define EV_ACQUIRE_CB (void)0 |
|
|
2006 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
2007 | #endif |
|
|
2008 | |
|
|
2009 | #define EVBREAK_RECURSE 0x80 |
|
|
2010 | |
479 | /*****************************************************************************/ |
2011 | /*****************************************************************************/ |
480 | |
2012 | |
|
|
2013 | #ifndef EV_HAVE_EV_TIME |
481 | ev_tstamp |
2014 | ev_tstamp |
482 | ev_time (void) |
2015 | ev_time (void) EV_NOEXCEPT |
483 | { |
2016 | { |
484 | #if EV_USE_REALTIME |
2017 | #if EV_USE_REALTIME |
|
|
2018 | if (ecb_expect_true (have_realtime)) |
|
|
2019 | { |
485 | struct timespec ts; |
2020 | struct timespec ts; |
486 | clock_gettime (CLOCK_REALTIME, &ts); |
2021 | clock_gettime (CLOCK_REALTIME, &ts); |
487 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2022 | return EV_TS_GET (ts); |
488 | #else |
2023 | } |
|
|
2024 | #endif |
|
|
2025 | |
|
|
2026 | { |
489 | struct timeval tv; |
2027 | struct timeval tv; |
490 | gettimeofday (&tv, 0); |
2028 | gettimeofday (&tv, 0); |
491 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2029 | return EV_TV_GET (tv); |
492 | #endif |
2030 | } |
493 | } |
2031 | } |
|
|
2032 | #endif |
494 | |
2033 | |
495 | ev_tstamp inline_size |
2034 | inline_size ev_tstamp |
496 | get_clock (void) |
2035 | get_clock (void) |
497 | { |
2036 | { |
498 | #if EV_USE_MONOTONIC |
2037 | #if EV_USE_MONOTONIC |
499 | if (expect_true (have_monotonic)) |
2038 | if (ecb_expect_true (have_monotonic)) |
500 | { |
2039 | { |
501 | struct timespec ts; |
2040 | struct timespec ts; |
502 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2041 | clock_gettime (CLOCK_MONOTONIC, &ts); |
503 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2042 | return EV_TS_GET (ts); |
504 | } |
2043 | } |
505 | #endif |
2044 | #endif |
506 | |
2045 | |
507 | return ev_time (); |
2046 | return ev_time (); |
508 | } |
2047 | } |
509 | |
2048 | |
510 | #if EV_MULTIPLICITY |
2049 | #if EV_MULTIPLICITY |
511 | ev_tstamp |
2050 | ev_tstamp |
512 | ev_now (EV_P) |
2051 | ev_now (EV_P) EV_NOEXCEPT |
513 | { |
2052 | { |
514 | return ev_rt_now; |
2053 | return ev_rt_now; |
515 | } |
2054 | } |
516 | #endif |
2055 | #endif |
517 | |
2056 | |
518 | void |
2057 | void |
519 | ev_sleep (ev_tstamp delay) |
2058 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
520 | { |
2059 | { |
521 | if (delay > 0.) |
2060 | if (delay > EV_TS_CONST (0.)) |
522 | { |
2061 | { |
523 | #if EV_USE_NANOSLEEP |
2062 | #if EV_USE_NANOSLEEP |
524 | struct timespec ts; |
2063 | struct timespec ts; |
525 | |
2064 | |
526 | ts.tv_sec = (time_t)delay; |
2065 | EV_TS_SET (ts, delay); |
527 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
528 | |
|
|
529 | nanosleep (&ts, 0); |
2066 | nanosleep (&ts, 0); |
530 | #elif defined(_WIN32) |
2067 | #elif defined _WIN32 |
|
|
2068 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2069 | /* compared to select (µs) or nanosleep (ns) */ |
531 | Sleep ((unsigned long)(delay * 1e3)); |
2070 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
532 | #else |
2071 | #else |
533 | struct timeval tv; |
2072 | struct timeval tv; |
534 | |
2073 | |
535 | tv.tv_sec = (time_t)delay; |
2074 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
536 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
2075 | /* something not guaranteed by newer posix versions, but guaranteed */ |
537 | |
2076 | /* by older ones */ |
|
|
2077 | EV_TV_SET (tv, delay); |
538 | select (0, 0, 0, 0, &tv); |
2078 | select (0, 0, 0, 0, &tv); |
539 | #endif |
2079 | #endif |
540 | } |
2080 | } |
541 | } |
2081 | } |
542 | |
2082 | |
543 | /*****************************************************************************/ |
2083 | /*****************************************************************************/ |
544 | |
2084 | |
545 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
2085 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
546 | |
2086 | |
547 | int inline_size |
2087 | /* find a suitable new size for the given array, */ |
|
|
2088 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
2089 | inline_size int |
548 | array_nextsize (int elem, int cur, int cnt) |
2090 | array_nextsize (int elem, int cur, int cnt) |
549 | { |
2091 | { |
550 | int ncur = cur + 1; |
2092 | int ncur = cur + 1; |
551 | |
2093 | |
552 | do |
2094 | do |
553 | ncur <<= 1; |
2095 | ncur <<= 1; |
554 | while (cnt > ncur); |
2096 | while (cnt > ncur); |
555 | |
2097 | |
556 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2098 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
557 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2099 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
558 | { |
2100 | { |
559 | ncur *= elem; |
2101 | ncur *= elem; |
560 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2102 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
561 | ncur = ncur - sizeof (void *) * 4; |
2103 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
563 | } |
2105 | } |
564 | |
2106 | |
565 | return ncur; |
2107 | return ncur; |
566 | } |
2108 | } |
567 | |
2109 | |
568 | static noinline void * |
2110 | ecb_noinline ecb_cold |
|
|
2111 | static void * |
569 | array_realloc (int elem, void *base, int *cur, int cnt) |
2112 | array_realloc (int elem, void *base, int *cur, int cnt) |
570 | { |
2113 | { |
571 | *cur = array_nextsize (elem, *cur, cnt); |
2114 | *cur = array_nextsize (elem, *cur, cnt); |
572 | return ev_realloc (base, elem * *cur); |
2115 | return ev_realloc (base, elem * *cur); |
573 | } |
2116 | } |
574 | |
2117 | |
|
|
2118 | #define array_needsize_noinit(base,offset,count) |
|
|
2119 | |
|
|
2120 | #define array_needsize_zerofill(base,offset,count) \ |
|
|
2121 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
|
|
2122 | |
575 | #define array_needsize(type,base,cur,cnt,init) \ |
2123 | #define array_needsize(type,base,cur,cnt,init) \ |
576 | if (expect_false ((cnt) > (cur))) \ |
2124 | if (ecb_expect_false ((cnt) > (cur))) \ |
577 | { \ |
2125 | { \ |
578 | int ocur_ = (cur); \ |
2126 | ecb_unused int ocur_ = (cur); \ |
579 | (base) = (type *)array_realloc \ |
2127 | (base) = (type *)array_realloc \ |
580 | (sizeof (type), (base), &(cur), (cnt)); \ |
2128 | (sizeof (type), (base), &(cur), (cnt)); \ |
581 | init ((base) + (ocur_), (cur) - ocur_); \ |
2129 | init ((base), ocur_, ((cur) - ocur_)); \ |
582 | } |
2130 | } |
583 | |
2131 | |
584 | #if 0 |
2132 | #if 0 |
585 | #define array_slim(type,stem) \ |
2133 | #define array_slim(type,stem) \ |
586 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2134 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
590 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
2138 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
591 | } |
2139 | } |
592 | #endif |
2140 | #endif |
593 | |
2141 | |
594 | #define array_free(stem, idx) \ |
2142 | #define array_free(stem, idx) \ |
595 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
2143 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
596 | |
2144 | |
597 | /*****************************************************************************/ |
2145 | /*****************************************************************************/ |
598 | |
2146 | |
599 | void noinline |
2147 | /* dummy callback for pending events */ |
|
|
2148 | ecb_noinline |
|
|
2149 | static void |
|
|
2150 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
2151 | { |
|
|
2152 | } |
|
|
2153 | |
|
|
2154 | ecb_noinline |
|
|
2155 | void |
600 | ev_feed_event (EV_P_ void *w, int revents) |
2156 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
601 | { |
2157 | { |
602 | W w_ = (W)w; |
2158 | W w_ = (W)w; |
603 | int pri = ABSPRI (w_); |
2159 | int pri = ABSPRI (w_); |
604 | |
2160 | |
605 | if (expect_false (w_->pending)) |
2161 | if (ecb_expect_false (w_->pending)) |
606 | pendings [pri][w_->pending - 1].events |= revents; |
2162 | pendings [pri][w_->pending - 1].events |= revents; |
607 | else |
2163 | else |
608 | { |
2164 | { |
609 | w_->pending = ++pendingcnt [pri]; |
2165 | w_->pending = ++pendingcnt [pri]; |
610 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2166 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
611 | pendings [pri][w_->pending - 1].w = w_; |
2167 | pendings [pri][w_->pending - 1].w = w_; |
612 | pendings [pri][w_->pending - 1].events = revents; |
2168 | pendings [pri][w_->pending - 1].events = revents; |
613 | } |
2169 | } |
614 | } |
|
|
615 | |
2170 | |
616 | void inline_speed |
2171 | pendingpri = NUMPRI - 1; |
|
|
2172 | } |
|
|
2173 | |
|
|
2174 | inline_speed void |
|
|
2175 | feed_reverse (EV_P_ W w) |
|
|
2176 | { |
|
|
2177 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
|
|
2178 | rfeeds [rfeedcnt++] = w; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | inline_size void |
|
|
2182 | feed_reverse_done (EV_P_ int revents) |
|
|
2183 | { |
|
|
2184 | do |
|
|
2185 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
2186 | while (rfeedcnt); |
|
|
2187 | } |
|
|
2188 | |
|
|
2189 | inline_speed void |
617 | queue_events (EV_P_ W *events, int eventcnt, int type) |
2190 | queue_events (EV_P_ W *events, int eventcnt, int type) |
618 | { |
2191 | { |
619 | int i; |
2192 | int i; |
620 | |
2193 | |
621 | for (i = 0; i < eventcnt; ++i) |
2194 | for (i = 0; i < eventcnt; ++i) |
622 | ev_feed_event (EV_A_ events [i], type); |
2195 | ev_feed_event (EV_A_ events [i], type); |
623 | } |
2196 | } |
624 | |
2197 | |
625 | /*****************************************************************************/ |
2198 | /*****************************************************************************/ |
626 | |
2199 | |
627 | void inline_size |
2200 | inline_speed void |
628 | anfds_init (ANFD *base, int count) |
|
|
629 | { |
|
|
630 | while (count--) |
|
|
631 | { |
|
|
632 | base->head = 0; |
|
|
633 | base->events = EV_NONE; |
|
|
634 | base->reify = 0; |
|
|
635 | |
|
|
636 | ++base; |
|
|
637 | } |
|
|
638 | } |
|
|
639 | |
|
|
640 | void inline_speed |
|
|
641 | fd_event (EV_P_ int fd, int revents) |
2201 | fd_event_nocheck (EV_P_ int fd, int revents) |
642 | { |
2202 | { |
643 | ANFD *anfd = anfds + fd; |
2203 | ANFD *anfd = anfds + fd; |
644 | ev_io *w; |
2204 | ev_io *w; |
645 | |
2205 | |
646 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2206 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
650 | if (ev) |
2210 | if (ev) |
651 | ev_feed_event (EV_A_ (W)w, ev); |
2211 | ev_feed_event (EV_A_ (W)w, ev); |
652 | } |
2212 | } |
653 | } |
2213 | } |
654 | |
2214 | |
655 | void |
2215 | /* do not submit kernel events for fds that have reify set */ |
|
|
2216 | /* because that means they changed while we were polling for new events */ |
|
|
2217 | inline_speed void |
656 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2218 | fd_event (EV_P_ int fd, int revents) |
|
|
2219 | { |
|
|
2220 | ANFD *anfd = anfds + fd; |
|
|
2221 | |
|
|
2222 | if (ecb_expect_true (!anfd->reify)) |
|
|
2223 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
2224 | } |
|
|
2225 | |
|
|
2226 | void |
|
|
2227 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
657 | { |
2228 | { |
658 | if (fd >= 0 && fd < anfdmax) |
2229 | if (fd >= 0 && fd < anfdmax) |
659 | fd_event (EV_A_ fd, revents); |
2230 | fd_event_nocheck (EV_A_ fd, revents); |
660 | } |
2231 | } |
661 | |
2232 | |
662 | void inline_size |
2233 | /* make sure the external fd watch events are in-sync */ |
|
|
2234 | /* with the kernel/libev internal state */ |
|
|
2235 | inline_size void |
663 | fd_reify (EV_P) |
2236 | fd_reify (EV_P) |
664 | { |
2237 | { |
665 | int i; |
2238 | int i; |
|
|
2239 | |
|
|
2240 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2241 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2242 | { |
|
|
2243 | int fd = fdchanges [i]; |
|
|
2244 | ANFD *anfd = anfds + fd; |
|
|
2245 | |
|
|
2246 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2247 | { |
|
|
2248 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2249 | |
|
|
2250 | if (handle != anfd->handle) |
|
|
2251 | { |
|
|
2252 | unsigned long arg; |
|
|
2253 | |
|
|
2254 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2255 | |
|
|
2256 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2257 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2258 | anfd->events = 0; |
|
|
2259 | anfd->handle = handle; |
|
|
2260 | } |
|
|
2261 | } |
|
|
2262 | } |
|
|
2263 | #endif |
666 | |
2264 | |
667 | for (i = 0; i < fdchangecnt; ++i) |
2265 | for (i = 0; i < fdchangecnt; ++i) |
668 | { |
2266 | { |
669 | int fd = fdchanges [i]; |
2267 | int fd = fdchanges [i]; |
670 | ANFD *anfd = anfds + fd; |
2268 | ANFD *anfd = anfds + fd; |
671 | ev_io *w; |
2269 | ev_io *w; |
672 | |
2270 | |
673 | unsigned char events = 0; |
2271 | unsigned char o_events = anfd->events; |
|
|
2272 | unsigned char o_reify = anfd->reify; |
674 | |
2273 | |
675 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2274 | anfd->reify = 0; |
676 | events |= (unsigned char)w->events; |
|
|
677 | |
2275 | |
678 | #if EV_SELECT_IS_WINSOCKET |
2276 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
679 | if (events) |
|
|
680 | { |
2277 | { |
681 | unsigned long argp; |
2278 | anfd->events = 0; |
682 | #ifdef EV_FD_TO_WIN32_HANDLE |
2279 | |
683 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
2280 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
684 | #else |
2281 | anfd->events |= (unsigned char)w->events; |
685 | anfd->handle = _get_osfhandle (fd); |
2282 | |
686 | #endif |
2283 | if (o_events != anfd->events) |
687 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
2284 | o_reify = EV__IOFDSET; /* actually |= */ |
688 | } |
2285 | } |
689 | #endif |
|
|
690 | |
2286 | |
691 | { |
2287 | if (o_reify & EV__IOFDSET) |
692 | unsigned char o_events = anfd->events; |
|
|
693 | unsigned char o_reify = anfd->reify; |
|
|
694 | |
|
|
695 | anfd->reify = 0; |
|
|
696 | anfd->events = events; |
|
|
697 | |
|
|
698 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
699 | backend_modify (EV_A_ fd, o_events, events); |
2288 | backend_modify (EV_A_ fd, o_events, anfd->events); |
700 | } |
|
|
701 | } |
2289 | } |
702 | |
2290 | |
703 | fdchangecnt = 0; |
2291 | fdchangecnt = 0; |
704 | } |
2292 | } |
705 | |
2293 | |
|
|
2294 | /* something about the given fd changed */ |
706 | void inline_size |
2295 | inline_size |
|
|
2296 | void |
707 | fd_change (EV_P_ int fd, int flags) |
2297 | fd_change (EV_P_ int fd, int flags) |
708 | { |
2298 | { |
709 | unsigned char reify = anfds [fd].reify; |
2299 | unsigned char reify = anfds [fd].reify; |
710 | anfds [fd].reify |= flags; |
2300 | anfds [fd].reify |= flags; |
711 | |
2301 | |
712 | if (expect_true (!reify)) |
2302 | if (ecb_expect_true (!reify)) |
713 | { |
2303 | { |
714 | ++fdchangecnt; |
2304 | ++fdchangecnt; |
715 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2305 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
716 | fdchanges [fdchangecnt - 1] = fd; |
2306 | fdchanges [fdchangecnt - 1] = fd; |
717 | } |
2307 | } |
718 | } |
2308 | } |
719 | |
2309 | |
720 | void inline_speed |
2310 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
2311 | inline_speed ecb_cold void |
721 | fd_kill (EV_P_ int fd) |
2312 | fd_kill (EV_P_ int fd) |
722 | { |
2313 | { |
723 | ev_io *w; |
2314 | ev_io *w; |
724 | |
2315 | |
725 | while ((w = (ev_io *)anfds [fd].head)) |
2316 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
727 | ev_io_stop (EV_A_ w); |
2318 | ev_io_stop (EV_A_ w); |
728 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2319 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
729 | } |
2320 | } |
730 | } |
2321 | } |
731 | |
2322 | |
732 | int inline_size |
2323 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
2324 | inline_size ecb_cold int |
733 | fd_valid (int fd) |
2325 | fd_valid (int fd) |
734 | { |
2326 | { |
735 | #ifdef _WIN32 |
2327 | #ifdef _WIN32 |
736 | return _get_osfhandle (fd) != -1; |
2328 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
737 | #else |
2329 | #else |
738 | return fcntl (fd, F_GETFD) != -1; |
2330 | return fcntl (fd, F_GETFD) != -1; |
739 | #endif |
2331 | #endif |
740 | } |
2332 | } |
741 | |
2333 | |
742 | /* called on EBADF to verify fds */ |
2334 | /* called on EBADF to verify fds */ |
743 | static void noinline |
2335 | ecb_noinline ecb_cold |
|
|
2336 | static void |
744 | fd_ebadf (EV_P) |
2337 | fd_ebadf (EV_P) |
745 | { |
2338 | { |
746 | int fd; |
2339 | int fd; |
747 | |
2340 | |
748 | for (fd = 0; fd < anfdmax; ++fd) |
2341 | for (fd = 0; fd < anfdmax; ++fd) |
749 | if (anfds [fd].events) |
2342 | if (anfds [fd].events) |
750 | if (!fd_valid (fd) == -1 && errno == EBADF) |
2343 | if (!fd_valid (fd) && errno == EBADF) |
751 | fd_kill (EV_A_ fd); |
2344 | fd_kill (EV_A_ fd); |
752 | } |
2345 | } |
753 | |
2346 | |
754 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2347 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
755 | static void noinline |
2348 | ecb_noinline ecb_cold |
|
|
2349 | static void |
756 | fd_enomem (EV_P) |
2350 | fd_enomem (EV_P) |
757 | { |
2351 | { |
758 | int fd; |
2352 | int fd; |
759 | |
2353 | |
760 | for (fd = anfdmax; fd--; ) |
2354 | for (fd = anfdmax; fd--; ) |
761 | if (anfds [fd].events) |
2355 | if (anfds [fd].events) |
762 | { |
2356 | { |
763 | fd_kill (EV_A_ fd); |
2357 | fd_kill (EV_A_ fd); |
764 | return; |
2358 | break; |
765 | } |
2359 | } |
766 | } |
2360 | } |
767 | |
2361 | |
768 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2362 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
769 | static void noinline |
2363 | ecb_noinline |
|
|
2364 | static void |
770 | fd_rearm_all (EV_P) |
2365 | fd_rearm_all (EV_P) |
771 | { |
2366 | { |
772 | int fd; |
2367 | int fd; |
773 | |
2368 | |
774 | for (fd = 0; fd < anfdmax; ++fd) |
2369 | for (fd = 0; fd < anfdmax; ++fd) |
775 | if (anfds [fd].events) |
2370 | if (anfds [fd].events) |
776 | { |
2371 | { |
777 | anfds [fd].events = 0; |
2372 | anfds [fd].events = 0; |
|
|
2373 | anfds [fd].emask = 0; |
778 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
2374 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
779 | } |
2375 | } |
780 | } |
2376 | } |
781 | |
2377 | |
|
|
2378 | /* used to prepare libev internal fd's */ |
|
|
2379 | /* this is not fork-safe */ |
|
|
2380 | inline_speed void |
|
|
2381 | fd_intern (int fd) |
|
|
2382 | { |
|
|
2383 | #ifdef _WIN32 |
|
|
2384 | unsigned long arg = 1; |
|
|
2385 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
2386 | #else |
|
|
2387 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
2388 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
2389 | #endif |
|
|
2390 | } |
|
|
2391 | |
782 | /*****************************************************************************/ |
2392 | /*****************************************************************************/ |
783 | |
2393 | |
784 | /* |
2394 | /* |
785 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2395 | * the heap functions want a real array index. array index 0 is guaranteed to not |
786 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2396 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
787 | * the branching factor of the d-tree. |
2397 | * the branching factor of the d-tree. |
788 | */ |
2398 | */ |
789 | |
2399 | |
790 | /* |
2400 | /* |
791 | * at the moment we allow libev the luxury of two heaps, |
2401 | * at the moment we allow libev the luxury of two heaps, |
792 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
2402 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
793 | * which is more cache-efficient. |
2403 | * which is more cache-efficient. |
794 | * the difference is about 5% with 50000+ watchers. |
2404 | * the difference is about 5% with 50000+ watchers. |
795 | */ |
2405 | */ |
796 | #define EV_USE_4HEAP !EV_MINIMAL |
|
|
797 | #if EV_USE_4HEAP |
2406 | #if EV_USE_4HEAP |
798 | |
2407 | |
799 | #define DHEAP 4 |
2408 | #define DHEAP 4 |
800 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
2409 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
801 | |
2410 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
802 | /* towards the root */ |
2411 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
803 | void inline_speed |
|
|
804 | upheap (ANHE *heap, int k) |
|
|
805 | { |
|
|
806 | ANHE he = heap [k]; |
|
|
807 | |
|
|
808 | for (;;) |
|
|
809 | { |
|
|
810 | int p = ((k - HEAP0 - 1) / DHEAP) + HEAP0; |
|
|
811 | |
|
|
812 | if (p == k || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
813 | break; |
|
|
814 | |
|
|
815 | heap [k] = heap [p]; |
|
|
816 | ev_active (ANHE_w (heap [k])) = k; |
|
|
817 | k = p; |
|
|
818 | } |
|
|
819 | |
|
|
820 | ev_active (ANHE_w (he)) = k; |
|
|
821 | heap [k] = he; |
|
|
822 | } |
|
|
823 | |
2412 | |
824 | /* away from the root */ |
2413 | /* away from the root */ |
825 | void inline_speed |
2414 | inline_speed void |
826 | downheap (ANHE *heap, int N, int k) |
2415 | downheap (ANHE *heap, int N, int k) |
827 | { |
2416 | { |
828 | ANHE he = heap [k]; |
2417 | ANHE he = heap [k]; |
829 | ANHE *E = heap + N + HEAP0; |
2418 | ANHE *E = heap + N + HEAP0; |
830 | |
2419 | |
831 | for (;;) |
2420 | for (;;) |
832 | { |
2421 | { |
833 | ev_tstamp minat; |
2422 | ev_tstamp minat; |
834 | ANHE *minpos; |
2423 | ANHE *minpos; |
835 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0; |
2424 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
836 | |
2425 | |
837 | // find minimum child |
2426 | /* find minimum child */ |
838 | if (expect_true (pos + DHEAP - 1 < E)) |
2427 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
839 | { |
2428 | { |
840 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2429 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
841 | if (ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2430 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
842 | if (ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2431 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
843 | if (ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2432 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
844 | } |
2433 | } |
845 | else if (pos < E) |
2434 | else if (pos < E) |
846 | { |
2435 | { |
847 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2436 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
848 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2437 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
849 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2438 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
850 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2439 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
851 | } |
2440 | } |
852 | else |
2441 | else |
853 | break; |
2442 | break; |
854 | |
2443 | |
855 | if (ANHE_at (he) <= minat) |
2444 | if (ANHE_at (he) <= minat) |
856 | break; |
2445 | break; |
857 | |
2446 | |
|
|
2447 | heap [k] = *minpos; |
858 | ev_active (ANHE_w (*minpos)) = k; |
2448 | ev_active (ANHE_w (*minpos)) = k; |
859 | heap [k] = *minpos; |
|
|
860 | |
2449 | |
861 | k = minpos - heap; |
2450 | k = minpos - heap; |
862 | } |
2451 | } |
863 | |
2452 | |
|
|
2453 | heap [k] = he; |
864 | ev_active (ANHE_w (he)) = k; |
2454 | ev_active (ANHE_w (he)) = k; |
865 | heap [k] = he; |
|
|
866 | } |
2455 | } |
867 | |
2456 | |
868 | #else // 4HEAP |
2457 | #else /* not 4HEAP */ |
869 | |
2458 | |
870 | #define HEAP0 1 |
2459 | #define HEAP0 1 |
|
|
2460 | #define HPARENT(k) ((k) >> 1) |
|
|
2461 | #define UPHEAP_DONE(p,k) (!(p)) |
871 | |
2462 | |
872 | /* towards the root */ |
2463 | /* away from the root */ |
873 | void inline_speed |
2464 | inline_speed void |
874 | upheap (ANHE *heap, int k) |
2465 | downheap (ANHE *heap, int N, int k) |
875 | { |
2466 | { |
876 | ANHE he = heap [k]; |
2467 | ANHE he = heap [k]; |
877 | |
2468 | |
878 | for (;;) |
2469 | for (;;) |
879 | { |
2470 | { |
880 | int p = k >> 1; |
2471 | int c = k << 1; |
881 | |
2472 | |
882 | /* maybe we could use a dummy element at heap [0]? */ |
2473 | if (c >= N + HEAP0) |
883 | if (!p || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
884 | break; |
2474 | break; |
885 | |
2475 | |
886 | heap [k] = heap [p]; |
|
|
887 | ev_active (ANHE_w (heap [k])) = k; |
|
|
888 | k = p; |
|
|
889 | } |
|
|
890 | |
|
|
891 | heap [k] = w; |
|
|
892 | ev_active (ANHE_w (heap [k])) = k; |
|
|
893 | } |
|
|
894 | |
|
|
895 | /* away from the root */ |
|
|
896 | void inline_speed |
|
|
897 | downheap (ANHE *heap, int N, int k) |
|
|
898 | { |
|
|
899 | ANHE he = heap [k]; |
|
|
900 | |
|
|
901 | for (;;) |
|
|
902 | { |
|
|
903 | int c = k << 1; |
|
|
904 | |
|
|
905 | if (c > N) |
|
|
906 | break; |
|
|
907 | |
|
|
908 | c += c + 1 < N && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
2476 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
909 | ? 1 : 0; |
2477 | ? 1 : 0; |
910 | |
2478 | |
911 | if (w->at <= ANHE_at (heap [c])) |
2479 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
912 | break; |
2480 | break; |
913 | |
2481 | |
914 | heap [k] = heap [c]; |
2482 | heap [k] = heap [c]; |
915 | ev_active (ANHE_w (heap [k])) = k; |
2483 | ev_active (ANHE_w (heap [k])) = k; |
916 | |
2484 | |
… | |
… | |
920 | heap [k] = he; |
2488 | heap [k] = he; |
921 | ev_active (ANHE_w (he)) = k; |
2489 | ev_active (ANHE_w (he)) = k; |
922 | } |
2490 | } |
923 | #endif |
2491 | #endif |
924 | |
2492 | |
925 | void inline_size |
2493 | /* towards the root */ |
|
|
2494 | inline_speed void |
|
|
2495 | upheap (ANHE *heap, int k) |
|
|
2496 | { |
|
|
2497 | ANHE he = heap [k]; |
|
|
2498 | |
|
|
2499 | for (;;) |
|
|
2500 | { |
|
|
2501 | int p = HPARENT (k); |
|
|
2502 | |
|
|
2503 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
2504 | break; |
|
|
2505 | |
|
|
2506 | heap [k] = heap [p]; |
|
|
2507 | ev_active (ANHE_w (heap [k])) = k; |
|
|
2508 | k = p; |
|
|
2509 | } |
|
|
2510 | |
|
|
2511 | heap [k] = he; |
|
|
2512 | ev_active (ANHE_w (he)) = k; |
|
|
2513 | } |
|
|
2514 | |
|
|
2515 | /* move an element suitably so it is in a correct place */ |
|
|
2516 | inline_size void |
926 | adjustheap (ANHE *heap, int N, int k) |
2517 | adjustheap (ANHE *heap, int N, int k) |
927 | { |
2518 | { |
|
|
2519 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
928 | upheap (heap, k); |
2520 | upheap (heap, k); |
|
|
2521 | else |
929 | downheap (heap, N, k); |
2522 | downheap (heap, N, k); |
|
|
2523 | } |
|
|
2524 | |
|
|
2525 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
2526 | inline_size void |
|
|
2527 | reheap (ANHE *heap, int N) |
|
|
2528 | { |
|
|
2529 | int i; |
|
|
2530 | |
|
|
2531 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
2532 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
2533 | for (i = 0; i < N; ++i) |
|
|
2534 | upheap (heap, i + HEAP0); |
930 | } |
2535 | } |
931 | |
2536 | |
932 | /*****************************************************************************/ |
2537 | /*****************************************************************************/ |
933 | |
2538 | |
|
|
2539 | /* associate signal watchers to a signal signal */ |
934 | typedef struct |
2540 | typedef struct |
935 | { |
2541 | { |
|
|
2542 | EV_ATOMIC_T pending; |
|
|
2543 | #if EV_MULTIPLICITY |
|
|
2544 | EV_P; |
|
|
2545 | #endif |
936 | WL head; |
2546 | WL head; |
937 | EV_ATOMIC_T gotsig; |
|
|
938 | } ANSIG; |
2547 | } ANSIG; |
939 | |
2548 | |
940 | static ANSIG *signals; |
2549 | static ANSIG signals [EV_NSIG - 1]; |
941 | static int signalmax; |
|
|
942 | |
|
|
943 | static EV_ATOMIC_T gotsig; |
|
|
944 | |
|
|
945 | void inline_size |
|
|
946 | signals_init (ANSIG *base, int count) |
|
|
947 | { |
|
|
948 | while (count--) |
|
|
949 | { |
|
|
950 | base->head = 0; |
|
|
951 | base->gotsig = 0; |
|
|
952 | |
|
|
953 | ++base; |
|
|
954 | } |
|
|
955 | } |
|
|
956 | |
2550 | |
957 | /*****************************************************************************/ |
2551 | /*****************************************************************************/ |
958 | |
2552 | |
959 | void inline_speed |
2553 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
960 | fd_intern (int fd) |
|
|
961 | { |
|
|
962 | #ifdef _WIN32 |
|
|
963 | int arg = 1; |
|
|
964 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
965 | #else |
|
|
966 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
967 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
968 | #endif |
|
|
969 | } |
|
|
970 | |
2554 | |
971 | static void noinline |
2555 | ecb_noinline ecb_cold |
|
|
2556 | static void |
972 | evpipe_init (EV_P) |
2557 | evpipe_init (EV_P) |
973 | { |
2558 | { |
974 | if (!ev_is_active (&pipeev)) |
2559 | if (!ev_is_active (&pipe_w)) |
|
|
2560 | { |
|
|
2561 | int fds [2]; |
|
|
2562 | |
|
|
2563 | # if EV_USE_EVENTFD |
|
|
2564 | fds [0] = -1; |
|
|
2565 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2566 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2567 | fds [1] = eventfd (0, 0); |
|
|
2568 | |
|
|
2569 | if (fds [1] < 0) |
|
|
2570 | # endif |
|
|
2571 | { |
|
|
2572 | while (pipe (fds)) |
|
|
2573 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2574 | |
|
|
2575 | fd_intern (fds [0]); |
|
|
2576 | } |
|
|
2577 | |
|
|
2578 | evpipe [0] = fds [0]; |
|
|
2579 | |
|
|
2580 | if (evpipe [1] < 0) |
|
|
2581 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2582 | else |
|
|
2583 | { |
|
|
2584 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2585 | /* so that evpipe_write can always rely on its value. */ |
|
|
2586 | /* this branch does not do anything sensible on windows, */ |
|
|
2587 | /* so must not be executed on windows */ |
|
|
2588 | |
|
|
2589 | dup2 (fds [1], evpipe [1]); |
|
|
2590 | close (fds [1]); |
|
|
2591 | } |
|
|
2592 | |
|
|
2593 | fd_intern (evpipe [1]); |
|
|
2594 | |
|
|
2595 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2596 | ev_io_start (EV_A_ &pipe_w); |
|
|
2597 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
975 | { |
2598 | } |
|
|
2599 | } |
|
|
2600 | |
|
|
2601 | inline_speed void |
|
|
2602 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2603 | { |
|
|
2604 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2605 | |
|
|
2606 | if (ecb_expect_true (*flag)) |
|
|
2607 | return; |
|
|
2608 | |
|
|
2609 | *flag = 1; |
|
|
2610 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2611 | |
|
|
2612 | pipe_write_skipped = 1; |
|
|
2613 | |
|
|
2614 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2615 | |
|
|
2616 | if (pipe_write_wanted) |
|
|
2617 | { |
|
|
2618 | int old_errno; |
|
|
2619 | |
|
|
2620 | pipe_write_skipped = 0; |
|
|
2621 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2622 | |
|
|
2623 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2624 | |
976 | #if EV_USE_EVENTFD |
2625 | #if EV_USE_EVENTFD |
977 | if ((evfd = eventfd (0, 0)) >= 0) |
2626 | if (evpipe [0] < 0) |
978 | { |
2627 | { |
979 | evpipe [0] = -1; |
2628 | uint64_t counter = 1; |
980 | fd_intern (evfd); |
2629 | write (evpipe [1], &counter, sizeof (uint64_t)); |
981 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
982 | } |
2630 | } |
983 | else |
2631 | else |
984 | #endif |
2632 | #endif |
985 | { |
2633 | { |
986 | while (pipe (evpipe)) |
2634 | #ifdef _WIN32 |
987 | syserr ("(libev) error creating signal/async pipe"); |
2635 | WSABUF buf; |
988 | |
2636 | DWORD sent; |
989 | fd_intern (evpipe [0]); |
2637 | buf.buf = (char *)&buf; |
990 | fd_intern (evpipe [1]); |
2638 | buf.len = 1; |
991 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
2639 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2640 | #else |
|
|
2641 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2642 | #endif |
992 | } |
2643 | } |
993 | |
2644 | |
994 | ev_io_start (EV_A_ &pipeev); |
2645 | errno = old_errno; |
995 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
996 | } |
|
|
997 | } |
|
|
998 | |
|
|
999 | void inline_size |
|
|
1000 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1001 | { |
|
|
1002 | if (!*flag) |
|
|
1003 | { |
2646 | } |
1004 | int old_errno = errno; /* save errno because write might clobber it */ |
2647 | } |
1005 | |
2648 | |
1006 | *flag = 1; |
2649 | /* called whenever the libev signal pipe */ |
|
|
2650 | /* got some events (signal, async) */ |
|
|
2651 | static void |
|
|
2652 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
2653 | { |
|
|
2654 | int i; |
1007 | |
2655 | |
|
|
2656 | if (revents & EV_READ) |
|
|
2657 | { |
1008 | #if EV_USE_EVENTFD |
2658 | #if EV_USE_EVENTFD |
1009 | if (evfd >= 0) |
2659 | if (evpipe [0] < 0) |
1010 | { |
2660 | { |
1011 | uint64_t counter = 1; |
2661 | uint64_t counter; |
1012 | write (evfd, &counter, sizeof (uint64_t)); |
2662 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1013 | } |
2663 | } |
1014 | else |
2664 | else |
1015 | #endif |
2665 | #endif |
1016 | write (evpipe [1], &old_errno, 1); |
2666 | { |
1017 | |
|
|
1018 | errno = old_errno; |
|
|
1019 | } |
|
|
1020 | } |
|
|
1021 | |
|
|
1022 | static void |
|
|
1023 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1024 | { |
|
|
1025 | #if EV_USE_EVENTFD |
|
|
1026 | if (evfd >= 0) |
|
|
1027 | { |
|
|
1028 | uint64_t counter; |
|
|
1029 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1030 | } |
|
|
1031 | else |
|
|
1032 | #endif |
|
|
1033 | { |
|
|
1034 | char dummy; |
2667 | char dummy[4]; |
|
|
2668 | #ifdef _WIN32 |
|
|
2669 | WSABUF buf; |
|
|
2670 | DWORD recvd; |
|
|
2671 | DWORD flags = 0; |
|
|
2672 | buf.buf = dummy; |
|
|
2673 | buf.len = sizeof (dummy); |
|
|
2674 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2675 | #else |
1035 | read (evpipe [0], &dummy, 1); |
2676 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2677 | #endif |
|
|
2678 | } |
|
|
2679 | } |
|
|
2680 | |
|
|
2681 | pipe_write_skipped = 0; |
|
|
2682 | |
|
|
2683 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2684 | |
|
|
2685 | #if EV_SIGNAL_ENABLE |
|
|
2686 | if (sig_pending) |
1036 | } |
2687 | { |
|
|
2688 | sig_pending = 0; |
1037 | |
2689 | |
1038 | if (gotsig && ev_is_default_loop (EV_A)) |
2690 | ECB_MEMORY_FENCE; |
1039 | { |
|
|
1040 | int signum; |
|
|
1041 | gotsig = 0; |
|
|
1042 | |
2691 | |
1043 | for (signum = signalmax; signum--; ) |
2692 | for (i = EV_NSIG - 1; i--; ) |
1044 | if (signals [signum].gotsig) |
2693 | if (ecb_expect_false (signals [i].pending)) |
1045 | ev_feed_signal_event (EV_A_ signum + 1); |
2694 | ev_feed_signal_event (EV_A_ i + 1); |
1046 | } |
2695 | } |
|
|
2696 | #endif |
1047 | |
2697 | |
1048 | #if EV_ASYNC_ENABLE |
2698 | #if EV_ASYNC_ENABLE |
1049 | if (gotasync) |
2699 | if (async_pending) |
1050 | { |
2700 | { |
1051 | int i; |
2701 | async_pending = 0; |
1052 | gotasync = 0; |
2702 | |
|
|
2703 | ECB_MEMORY_FENCE; |
1053 | |
2704 | |
1054 | for (i = asynccnt; i--; ) |
2705 | for (i = asynccnt; i--; ) |
1055 | if (asyncs [i]->sent) |
2706 | if (asyncs [i]->sent) |
1056 | { |
2707 | { |
1057 | asyncs [i]->sent = 0; |
2708 | asyncs [i]->sent = 0; |
|
|
2709 | ECB_MEMORY_FENCE_RELEASE; |
1058 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2710 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1059 | } |
2711 | } |
1060 | } |
2712 | } |
1061 | #endif |
2713 | #endif |
1062 | } |
2714 | } |
1063 | |
2715 | |
1064 | /*****************************************************************************/ |
2716 | /*****************************************************************************/ |
1065 | |
2717 | |
|
|
2718 | void |
|
|
2719 | ev_feed_signal (int signum) EV_NOEXCEPT |
|
|
2720 | { |
|
|
2721 | #if EV_MULTIPLICITY |
|
|
2722 | EV_P; |
|
|
2723 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2724 | EV_A = signals [signum - 1].loop; |
|
|
2725 | |
|
|
2726 | if (!EV_A) |
|
|
2727 | return; |
|
|
2728 | #endif |
|
|
2729 | |
|
|
2730 | signals [signum - 1].pending = 1; |
|
|
2731 | evpipe_write (EV_A_ &sig_pending); |
|
|
2732 | } |
|
|
2733 | |
1066 | static void |
2734 | static void |
1067 | ev_sighandler (int signum) |
2735 | ev_sighandler (int signum) |
1068 | { |
2736 | { |
|
|
2737 | #ifdef _WIN32 |
|
|
2738 | signal (signum, ev_sighandler); |
|
|
2739 | #endif |
|
|
2740 | |
|
|
2741 | ev_feed_signal (signum); |
|
|
2742 | } |
|
|
2743 | |
|
|
2744 | ecb_noinline |
|
|
2745 | void |
|
|
2746 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
|
|
2747 | { |
|
|
2748 | WL w; |
|
|
2749 | |
|
|
2750 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
|
|
2751 | return; |
|
|
2752 | |
|
|
2753 | --signum; |
|
|
2754 | |
1069 | #if EV_MULTIPLICITY |
2755 | #if EV_MULTIPLICITY |
1070 | struct ev_loop *loop = &default_loop_struct; |
2756 | /* it is permissible to try to feed a signal to the wrong loop */ |
1071 | #endif |
2757 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1072 | |
2758 | |
1073 | #if _WIN32 |
2759 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1074 | signal (signum, ev_sighandler); |
|
|
1075 | #endif |
|
|
1076 | |
|
|
1077 | signals [signum - 1].gotsig = 1; |
|
|
1078 | evpipe_write (EV_A_ &gotsig); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | void noinline |
|
|
1082 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1083 | { |
|
|
1084 | WL w; |
|
|
1085 | |
|
|
1086 | #if EV_MULTIPLICITY |
|
|
1087 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1088 | #endif |
|
|
1089 | |
|
|
1090 | --signum; |
|
|
1091 | |
|
|
1092 | if (signum < 0 || signum >= signalmax) |
|
|
1093 | return; |
2760 | return; |
|
|
2761 | #endif |
1094 | |
2762 | |
1095 | signals [signum].gotsig = 0; |
2763 | signals [signum].pending = 0; |
|
|
2764 | ECB_MEMORY_FENCE_RELEASE; |
1096 | |
2765 | |
1097 | for (w = signals [signum].head; w; w = w->next) |
2766 | for (w = signals [signum].head; w; w = w->next) |
1098 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2767 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1099 | } |
2768 | } |
1100 | |
2769 | |
|
|
2770 | #if EV_USE_SIGNALFD |
|
|
2771 | static void |
|
|
2772 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2773 | { |
|
|
2774 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2775 | |
|
|
2776 | for (;;) |
|
|
2777 | { |
|
|
2778 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2779 | |
|
|
2780 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2781 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2782 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2783 | |
|
|
2784 | if (res < (ssize_t)sizeof (si)) |
|
|
2785 | break; |
|
|
2786 | } |
|
|
2787 | } |
|
|
2788 | #endif |
|
|
2789 | |
|
|
2790 | #endif |
|
|
2791 | |
1101 | /*****************************************************************************/ |
2792 | /*****************************************************************************/ |
1102 | |
2793 | |
|
|
2794 | #if EV_CHILD_ENABLE |
1103 | static WL childs [EV_PID_HASHSIZE]; |
2795 | static WL childs [EV_PID_HASHSIZE]; |
1104 | |
|
|
1105 | #ifndef _WIN32 |
|
|
1106 | |
2796 | |
1107 | static ev_signal childev; |
2797 | static ev_signal childev; |
1108 | |
2798 | |
1109 | #ifndef WIFCONTINUED |
2799 | #ifndef WIFCONTINUED |
1110 | # define WIFCONTINUED(status) 0 |
2800 | # define WIFCONTINUED(status) 0 |
1111 | #endif |
2801 | #endif |
1112 | |
2802 | |
1113 | void inline_speed |
2803 | /* handle a single child status event */ |
|
|
2804 | inline_speed void |
1114 | child_reap (EV_P_ int chain, int pid, int status) |
2805 | child_reap (EV_P_ int chain, int pid, int status) |
1115 | { |
2806 | { |
1116 | ev_child *w; |
2807 | ev_child *w; |
1117 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2808 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1118 | |
2809 | |
1119 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2810 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1120 | { |
2811 | { |
1121 | if ((w->pid == pid || !w->pid) |
2812 | if ((w->pid == pid || !w->pid) |
1122 | && (!traced || (w->flags & 1))) |
2813 | && (!traced || (w->flags & 1))) |
1123 | { |
2814 | { |
1124 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2815 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1131 | |
2822 | |
1132 | #ifndef WCONTINUED |
2823 | #ifndef WCONTINUED |
1133 | # define WCONTINUED 0 |
2824 | # define WCONTINUED 0 |
1134 | #endif |
2825 | #endif |
1135 | |
2826 | |
|
|
2827 | /* called on sigchld etc., calls waitpid */ |
1136 | static void |
2828 | static void |
1137 | childcb (EV_P_ ev_signal *sw, int revents) |
2829 | childcb (EV_P_ ev_signal *sw, int revents) |
1138 | { |
2830 | { |
1139 | int pid, status; |
2831 | int pid, status; |
1140 | |
2832 | |
… | |
… | |
1148 | /* make sure we are called again until all children have been reaped */ |
2840 | /* make sure we are called again until all children have been reaped */ |
1149 | /* we need to do it this way so that the callback gets called before we continue */ |
2841 | /* we need to do it this way so that the callback gets called before we continue */ |
1150 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2842 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1151 | |
2843 | |
1152 | child_reap (EV_A_ pid, pid, status); |
2844 | child_reap (EV_A_ pid, pid, status); |
1153 | if (EV_PID_HASHSIZE > 1) |
2845 | if ((EV_PID_HASHSIZE) > 1) |
1154 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2846 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1155 | } |
2847 | } |
1156 | |
2848 | |
1157 | #endif |
2849 | #endif |
1158 | |
2850 | |
1159 | /*****************************************************************************/ |
2851 | /*****************************************************************************/ |
1160 | |
2852 | |
|
|
2853 | #if EV_USE_IOCP |
|
|
2854 | # include "ev_iocp.c" |
|
|
2855 | #endif |
1161 | #if EV_USE_PORT |
2856 | #if EV_USE_PORT |
1162 | # include "ev_port.c" |
2857 | # include "ev_port.c" |
1163 | #endif |
2858 | #endif |
1164 | #if EV_USE_KQUEUE |
2859 | #if EV_USE_KQUEUE |
1165 | # include "ev_kqueue.c" |
2860 | # include "ev_kqueue.c" |
1166 | #endif |
2861 | #endif |
1167 | #if EV_USE_EPOLL |
2862 | #if EV_USE_EPOLL |
1168 | # include "ev_epoll.c" |
2863 | # include "ev_epoll.c" |
1169 | #endif |
2864 | #endif |
|
|
2865 | #if EV_USE_LINUXAIO |
|
|
2866 | # include "ev_linuxaio.c" |
|
|
2867 | #endif |
|
|
2868 | #if EV_USE_IOURING |
|
|
2869 | # include "ev_iouring.c" |
|
|
2870 | #endif |
1170 | #if EV_USE_POLL |
2871 | #if EV_USE_POLL |
1171 | # include "ev_poll.c" |
2872 | # include "ev_poll.c" |
1172 | #endif |
2873 | #endif |
1173 | #if EV_USE_SELECT |
2874 | #if EV_USE_SELECT |
1174 | # include "ev_select.c" |
2875 | # include "ev_select.c" |
1175 | #endif |
2876 | #endif |
1176 | |
2877 | |
1177 | int |
2878 | ecb_cold int |
1178 | ev_version_major (void) |
2879 | ev_version_major (void) EV_NOEXCEPT |
1179 | { |
2880 | { |
1180 | return EV_VERSION_MAJOR; |
2881 | return EV_VERSION_MAJOR; |
1181 | } |
2882 | } |
1182 | |
2883 | |
1183 | int |
2884 | ecb_cold int |
1184 | ev_version_minor (void) |
2885 | ev_version_minor (void) EV_NOEXCEPT |
1185 | { |
2886 | { |
1186 | return EV_VERSION_MINOR; |
2887 | return EV_VERSION_MINOR; |
1187 | } |
2888 | } |
1188 | |
2889 | |
1189 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2890 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1190 | int inline_size |
2891 | inline_size ecb_cold int |
1191 | enable_secure (void) |
2892 | enable_secure (void) |
1192 | { |
2893 | { |
1193 | #ifdef _WIN32 |
2894 | #ifdef _WIN32 |
1194 | return 0; |
2895 | return 0; |
1195 | #else |
2896 | #else |
1196 | return getuid () != geteuid () |
2897 | return getuid () != geteuid () |
1197 | || getgid () != getegid (); |
2898 | || getgid () != getegid (); |
1198 | #endif |
2899 | #endif |
1199 | } |
2900 | } |
1200 | |
2901 | |
|
|
2902 | ecb_cold |
1201 | unsigned int |
2903 | unsigned int |
1202 | ev_supported_backends (void) |
2904 | ev_supported_backends (void) EV_NOEXCEPT |
1203 | { |
2905 | { |
1204 | unsigned int flags = 0; |
2906 | unsigned int flags = 0; |
1205 | |
2907 | |
1206 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2908 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1207 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2909 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1208 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2910 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2911 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2912 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
1209 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2913 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
1210 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2914 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
1211 | |
2915 | |
1212 | return flags; |
2916 | return flags; |
1213 | } |
2917 | } |
1214 | |
2918 | |
|
|
2919 | ecb_cold |
1215 | unsigned int |
2920 | unsigned int |
1216 | ev_recommended_backends (void) |
2921 | ev_recommended_backends (void) EV_NOEXCEPT |
1217 | { |
2922 | { |
1218 | unsigned int flags = ev_supported_backends (); |
2923 | unsigned int flags = ev_supported_backends (); |
1219 | |
2924 | |
1220 | #ifndef __NetBSD__ |
2925 | #ifndef __NetBSD__ |
1221 | /* kqueue is borked on everything but netbsd apparently */ |
2926 | /* kqueue is borked on everything but netbsd apparently */ |
1222 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2927 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1223 | flags &= ~EVBACKEND_KQUEUE; |
2928 | flags &= ~EVBACKEND_KQUEUE; |
1224 | #endif |
2929 | #endif |
1225 | #ifdef __APPLE__ |
2930 | #ifdef __APPLE__ |
1226 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2931 | /* only select works correctly on that "unix-certified" platform */ |
|
|
2932 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2933 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2934 | #endif |
|
|
2935 | #ifdef __FreeBSD__ |
|
|
2936 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2937 | #endif |
|
|
2938 | |
|
|
2939 | /* TODO: linuxaio is very experimental */ |
|
|
2940 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2941 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2942 | #endif |
|
|
2943 | /* TODO: linuxaio is super experimental */ |
|
|
2944 | #if !EV_RECOMMEND_IOURING |
1227 | flags &= ~EVBACKEND_POLL; |
2945 | flags &= ~EVBACKEND_IOURING; |
1228 | #endif |
2946 | #endif |
1229 | |
2947 | |
1230 | return flags; |
2948 | return flags; |
1231 | } |
2949 | } |
1232 | |
2950 | |
|
|
2951 | ecb_cold |
1233 | unsigned int |
2952 | unsigned int |
1234 | ev_embeddable_backends (void) |
2953 | ev_embeddable_backends (void) EV_NOEXCEPT |
1235 | { |
2954 | { |
1236 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2955 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1237 | |
2956 | |
1238 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2957 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1239 | /* please fix it and tell me how to detect the fix */ |
2958 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1240 | flags &= ~EVBACKEND_EPOLL; |
2959 | flags &= ~EVBACKEND_EPOLL; |
|
|
2960 | |
|
|
2961 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
2962 | |
|
|
2963 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2964 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2965 | * if the kernel ever is fixed, this might change... |
|
|
2966 | */ |
1241 | |
2967 | |
1242 | return flags; |
2968 | return flags; |
1243 | } |
2969 | } |
1244 | |
2970 | |
1245 | unsigned int |
2971 | unsigned int |
1246 | ev_backend (EV_P) |
2972 | ev_backend (EV_P) EV_NOEXCEPT |
1247 | { |
2973 | { |
1248 | return backend; |
2974 | return backend; |
1249 | } |
2975 | } |
1250 | |
2976 | |
|
|
2977 | #if EV_FEATURE_API |
1251 | unsigned int |
2978 | unsigned int |
1252 | ev_loop_count (EV_P) |
2979 | ev_iteration (EV_P) EV_NOEXCEPT |
1253 | { |
2980 | { |
1254 | return loop_count; |
2981 | return loop_count; |
1255 | } |
2982 | } |
1256 | |
2983 | |
|
|
2984 | unsigned int |
|
|
2985 | ev_depth (EV_P) EV_NOEXCEPT |
|
|
2986 | { |
|
|
2987 | return loop_depth; |
|
|
2988 | } |
|
|
2989 | |
1257 | void |
2990 | void |
1258 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2991 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1259 | { |
2992 | { |
1260 | io_blocktime = interval; |
2993 | io_blocktime = interval; |
1261 | } |
2994 | } |
1262 | |
2995 | |
1263 | void |
2996 | void |
1264 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2997 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1265 | { |
2998 | { |
1266 | timeout_blocktime = interval; |
2999 | timeout_blocktime = interval; |
1267 | } |
3000 | } |
1268 | |
3001 | |
1269 | static void noinline |
3002 | void |
|
|
3003 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
|
|
3004 | { |
|
|
3005 | userdata = data; |
|
|
3006 | } |
|
|
3007 | |
|
|
3008 | void * |
|
|
3009 | ev_userdata (EV_P) EV_NOEXCEPT |
|
|
3010 | { |
|
|
3011 | return userdata; |
|
|
3012 | } |
|
|
3013 | |
|
|
3014 | void |
|
|
3015 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
|
|
3016 | { |
|
|
3017 | invoke_cb = invoke_pending_cb; |
|
|
3018 | } |
|
|
3019 | |
|
|
3020 | void |
|
|
3021 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
|
|
3022 | { |
|
|
3023 | release_cb = release; |
|
|
3024 | acquire_cb = acquire; |
|
|
3025 | } |
|
|
3026 | #endif |
|
|
3027 | |
|
|
3028 | /* initialise a loop structure, must be zero-initialised */ |
|
|
3029 | ecb_noinline ecb_cold |
|
|
3030 | static void |
1270 | loop_init (EV_P_ unsigned int flags) |
3031 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1271 | { |
3032 | { |
1272 | if (!backend) |
3033 | if (!backend) |
1273 | { |
3034 | { |
|
|
3035 | origflags = flags; |
|
|
3036 | |
|
|
3037 | #if EV_USE_REALTIME |
|
|
3038 | if (!have_realtime) |
|
|
3039 | { |
|
|
3040 | struct timespec ts; |
|
|
3041 | |
|
|
3042 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
3043 | have_realtime = 1; |
|
|
3044 | } |
|
|
3045 | #endif |
|
|
3046 | |
1274 | #if EV_USE_MONOTONIC |
3047 | #if EV_USE_MONOTONIC |
|
|
3048 | if (!have_monotonic) |
1275 | { |
3049 | { |
1276 | struct timespec ts; |
3050 | struct timespec ts; |
|
|
3051 | |
1277 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
3052 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1278 | have_monotonic = 1; |
3053 | have_monotonic = 1; |
1279 | } |
3054 | } |
1280 | #endif |
|
|
1281 | |
|
|
1282 | ev_rt_now = ev_time (); |
|
|
1283 | mn_now = get_clock (); |
|
|
1284 | now_floor = mn_now; |
|
|
1285 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1286 | |
|
|
1287 | io_blocktime = 0.; |
|
|
1288 | timeout_blocktime = 0.; |
|
|
1289 | backend = 0; |
|
|
1290 | backend_fd = -1; |
|
|
1291 | gotasync = 0; |
|
|
1292 | #if EV_USE_INOTIFY |
|
|
1293 | fs_fd = -2; |
|
|
1294 | #endif |
3055 | #endif |
1295 | |
3056 | |
1296 | /* pid check not overridable via env */ |
3057 | /* pid check not overridable via env */ |
1297 | #ifndef _WIN32 |
3058 | #ifndef _WIN32 |
1298 | if (flags & EVFLAG_FORKCHECK) |
3059 | if (flags & EVFLAG_FORKCHECK) |
… | |
… | |
1302 | if (!(flags & EVFLAG_NOENV) |
3063 | if (!(flags & EVFLAG_NOENV) |
1303 | && !enable_secure () |
3064 | && !enable_secure () |
1304 | && getenv ("LIBEV_FLAGS")) |
3065 | && getenv ("LIBEV_FLAGS")) |
1305 | flags = atoi (getenv ("LIBEV_FLAGS")); |
3066 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1306 | |
3067 | |
1307 | if (!(flags & 0x0000ffffU)) |
3068 | ev_rt_now = ev_time (); |
|
|
3069 | mn_now = get_clock (); |
|
|
3070 | now_floor = mn_now; |
|
|
3071 | rtmn_diff = ev_rt_now - mn_now; |
|
|
3072 | #if EV_FEATURE_API |
|
|
3073 | invoke_cb = ev_invoke_pending; |
|
|
3074 | #endif |
|
|
3075 | |
|
|
3076 | io_blocktime = 0.; |
|
|
3077 | timeout_blocktime = 0.; |
|
|
3078 | backend = 0; |
|
|
3079 | backend_fd = -1; |
|
|
3080 | sig_pending = 0; |
|
|
3081 | #if EV_ASYNC_ENABLE |
|
|
3082 | async_pending = 0; |
|
|
3083 | #endif |
|
|
3084 | pipe_write_skipped = 0; |
|
|
3085 | pipe_write_wanted = 0; |
|
|
3086 | evpipe [0] = -1; |
|
|
3087 | evpipe [1] = -1; |
|
|
3088 | #if EV_USE_INOTIFY |
|
|
3089 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
3090 | #endif |
|
|
3091 | #if EV_USE_SIGNALFD |
|
|
3092 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
3093 | #endif |
|
|
3094 | |
|
|
3095 | if (!(flags & EVBACKEND_MASK)) |
1308 | flags |= ev_recommended_backends (); |
3096 | flags |= ev_recommended_backends (); |
1309 | |
3097 | |
|
|
3098 | #if EV_USE_IOCP |
|
|
3099 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
3100 | #endif |
1310 | #if EV_USE_PORT |
3101 | #if EV_USE_PORT |
1311 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3102 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1312 | #endif |
3103 | #endif |
1313 | #if EV_USE_KQUEUE |
3104 | #if EV_USE_KQUEUE |
1314 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3105 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3106 | #endif |
|
|
3107 | #if EV_USE_IOURING |
|
|
3108 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3109 | #endif |
|
|
3110 | #if EV_USE_LINUXAIO |
|
|
3111 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1315 | #endif |
3112 | #endif |
1316 | #if EV_USE_EPOLL |
3113 | #if EV_USE_EPOLL |
1317 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3114 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1318 | #endif |
3115 | #endif |
1319 | #if EV_USE_POLL |
3116 | #if EV_USE_POLL |
1320 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3117 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1321 | #endif |
3118 | #endif |
1322 | #if EV_USE_SELECT |
3119 | #if EV_USE_SELECT |
1323 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3120 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1324 | #endif |
3121 | #endif |
1325 | |
3122 | |
|
|
3123 | ev_prepare_init (&pending_w, pendingcb); |
|
|
3124 | |
|
|
3125 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1326 | ev_init (&pipeev, pipecb); |
3126 | ev_init (&pipe_w, pipecb); |
1327 | ev_set_priority (&pipeev, EV_MAXPRI); |
3127 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
3128 | #endif |
1328 | } |
3129 | } |
1329 | } |
3130 | } |
1330 | |
3131 | |
1331 | static void noinline |
3132 | /* free up a loop structure */ |
|
|
3133 | ecb_cold |
|
|
3134 | void |
1332 | loop_destroy (EV_P) |
3135 | ev_loop_destroy (EV_P) |
1333 | { |
3136 | { |
1334 | int i; |
3137 | int i; |
1335 | |
3138 | |
|
|
3139 | #if EV_MULTIPLICITY |
|
|
3140 | /* mimic free (0) */ |
|
|
3141 | if (!EV_A) |
|
|
3142 | return; |
|
|
3143 | #endif |
|
|
3144 | |
|
|
3145 | #if EV_CLEANUP_ENABLE |
|
|
3146 | /* queue cleanup watchers (and execute them) */ |
|
|
3147 | if (ecb_expect_false (cleanupcnt)) |
|
|
3148 | { |
|
|
3149 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
3150 | EV_INVOKE_PENDING; |
|
|
3151 | } |
|
|
3152 | #endif |
|
|
3153 | |
|
|
3154 | #if EV_CHILD_ENABLE |
|
|
3155 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
3156 | { |
|
|
3157 | ev_ref (EV_A); /* child watcher */ |
|
|
3158 | ev_signal_stop (EV_A_ &childev); |
|
|
3159 | } |
|
|
3160 | #endif |
|
|
3161 | |
1336 | if (ev_is_active (&pipeev)) |
3162 | if (ev_is_active (&pipe_w)) |
1337 | { |
3163 | { |
1338 | ev_ref (EV_A); /* signal watcher */ |
3164 | /*ev_ref (EV_A);*/ |
1339 | ev_io_stop (EV_A_ &pipeev); |
3165 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1340 | |
3166 | |
|
|
3167 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
3168 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
3169 | } |
|
|
3170 | |
1341 | #if EV_USE_EVENTFD |
3171 | #if EV_USE_SIGNALFD |
1342 | if (evfd >= 0) |
3172 | if (ev_is_active (&sigfd_w)) |
1343 | close (evfd); |
3173 | close (sigfd); |
1344 | #endif |
3174 | #endif |
1345 | |
|
|
1346 | if (evpipe [0] >= 0) |
|
|
1347 | { |
|
|
1348 | close (evpipe [0]); |
|
|
1349 | close (evpipe [1]); |
|
|
1350 | } |
|
|
1351 | } |
|
|
1352 | |
3175 | |
1353 | #if EV_USE_INOTIFY |
3176 | #if EV_USE_INOTIFY |
1354 | if (fs_fd >= 0) |
3177 | if (fs_fd >= 0) |
1355 | close (fs_fd); |
3178 | close (fs_fd); |
1356 | #endif |
3179 | #endif |
1357 | |
3180 | |
1358 | if (backend_fd >= 0) |
3181 | if (backend_fd >= 0) |
1359 | close (backend_fd); |
3182 | close (backend_fd); |
1360 | |
3183 | |
|
|
3184 | #if EV_USE_IOCP |
|
|
3185 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
3186 | #endif |
1361 | #if EV_USE_PORT |
3187 | #if EV_USE_PORT |
1362 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3188 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1363 | #endif |
3189 | #endif |
1364 | #if EV_USE_KQUEUE |
3190 | #if EV_USE_KQUEUE |
1365 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3191 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3192 | #endif |
|
|
3193 | #if EV_USE_IOURING |
|
|
3194 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3195 | #endif |
|
|
3196 | #if EV_USE_LINUXAIO |
|
|
3197 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1366 | #endif |
3198 | #endif |
1367 | #if EV_USE_EPOLL |
3199 | #if EV_USE_EPOLL |
1368 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3200 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1369 | #endif |
3201 | #endif |
1370 | #if EV_USE_POLL |
3202 | #if EV_USE_POLL |
1371 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3203 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1372 | #endif |
3204 | #endif |
1373 | #if EV_USE_SELECT |
3205 | #if EV_USE_SELECT |
1374 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3206 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1375 | #endif |
3207 | #endif |
1376 | |
3208 | |
1377 | for (i = NUMPRI; i--; ) |
3209 | for (i = NUMPRI; i--; ) |
1378 | { |
3210 | { |
1379 | array_free (pending, [i]); |
3211 | array_free (pending, [i]); |
1380 | #if EV_IDLE_ENABLE |
3212 | #if EV_IDLE_ENABLE |
1381 | array_free (idle, [i]); |
3213 | array_free (idle, [i]); |
1382 | #endif |
3214 | #endif |
1383 | } |
3215 | } |
1384 | |
3216 | |
1385 | ev_free (anfds); anfdmax = 0; |
3217 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1386 | |
3218 | |
1387 | /* have to use the microsoft-never-gets-it-right macro */ |
3219 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
3220 | array_free (rfeed, EMPTY); |
1388 | array_free (fdchange, EMPTY); |
3221 | array_free (fdchange, EMPTY); |
1389 | array_free (timer, EMPTY); |
3222 | array_free (timer, EMPTY); |
1390 | #if EV_PERIODIC_ENABLE |
3223 | #if EV_PERIODIC_ENABLE |
1391 | array_free (periodic, EMPTY); |
3224 | array_free (periodic, EMPTY); |
1392 | #endif |
3225 | #endif |
1393 | #if EV_FORK_ENABLE |
3226 | #if EV_FORK_ENABLE |
1394 | array_free (fork, EMPTY); |
3227 | array_free (fork, EMPTY); |
1395 | #endif |
3228 | #endif |
|
|
3229 | #if EV_CLEANUP_ENABLE |
|
|
3230 | array_free (cleanup, EMPTY); |
|
|
3231 | #endif |
1396 | array_free (prepare, EMPTY); |
3232 | array_free (prepare, EMPTY); |
1397 | array_free (check, EMPTY); |
3233 | array_free (check, EMPTY); |
1398 | #if EV_ASYNC_ENABLE |
3234 | #if EV_ASYNC_ENABLE |
1399 | array_free (async, EMPTY); |
3235 | array_free (async, EMPTY); |
1400 | #endif |
3236 | #endif |
1401 | |
3237 | |
1402 | backend = 0; |
3238 | backend = 0; |
|
|
3239 | |
|
|
3240 | #if EV_MULTIPLICITY |
|
|
3241 | if (ev_is_default_loop (EV_A)) |
|
|
3242 | #endif |
|
|
3243 | ev_default_loop_ptr = 0; |
|
|
3244 | #if EV_MULTIPLICITY |
|
|
3245 | else |
|
|
3246 | ev_free (EV_A); |
|
|
3247 | #endif |
1403 | } |
3248 | } |
1404 | |
3249 | |
1405 | #if EV_USE_INOTIFY |
3250 | #if EV_USE_INOTIFY |
1406 | void inline_size infy_fork (EV_P); |
3251 | inline_size void infy_fork (EV_P); |
1407 | #endif |
3252 | #endif |
1408 | |
3253 | |
1409 | void inline_size |
3254 | inline_size void |
1410 | loop_fork (EV_P) |
3255 | loop_fork (EV_P) |
1411 | { |
3256 | { |
1412 | #if EV_USE_PORT |
3257 | #if EV_USE_PORT |
1413 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3258 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1414 | #endif |
3259 | #endif |
1415 | #if EV_USE_KQUEUE |
3260 | #if EV_USE_KQUEUE |
1416 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3261 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3262 | #endif |
|
|
3263 | #if EV_USE_IOURING |
|
|
3264 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3265 | #endif |
|
|
3266 | #if EV_USE_LINUXAIO |
|
|
3267 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1417 | #endif |
3268 | #endif |
1418 | #if EV_USE_EPOLL |
3269 | #if EV_USE_EPOLL |
1419 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3270 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1420 | #endif |
3271 | #endif |
1421 | #if EV_USE_INOTIFY |
3272 | #if EV_USE_INOTIFY |
1422 | infy_fork (EV_A); |
3273 | infy_fork (EV_A); |
1423 | #endif |
3274 | #endif |
1424 | |
3275 | |
1425 | if (ev_is_active (&pipeev)) |
3276 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
3277 | if (ev_is_active (&pipe_w) && postfork != 2) |
|
|
3278 | { |
|
|
3279 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
|
|
3280 | |
|
|
3281 | ev_ref (EV_A); |
|
|
3282 | ev_io_stop (EV_A_ &pipe_w); |
|
|
3283 | |
|
|
3284 | if (evpipe [0] >= 0) |
|
|
3285 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
3286 | |
|
|
3287 | evpipe_init (EV_A); |
|
|
3288 | /* iterate over everything, in case we missed something before */ |
|
|
3289 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1426 | { |
3290 | } |
1427 | /* this "locks" the handlers against writing to the pipe */ |
3291 | #endif |
1428 | /* while we modify the fd vars */ |
3292 | |
1429 | gotsig = 1; |
3293 | postfork = 0; |
|
|
3294 | } |
|
|
3295 | |
|
|
3296 | #if EV_MULTIPLICITY |
|
|
3297 | |
|
|
3298 | ecb_cold |
|
|
3299 | struct ev_loop * |
|
|
3300 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
|
|
3301 | { |
|
|
3302 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
3303 | |
|
|
3304 | memset (EV_A, 0, sizeof (struct ev_loop)); |
|
|
3305 | loop_init (EV_A_ flags); |
|
|
3306 | |
|
|
3307 | if (ev_backend (EV_A)) |
|
|
3308 | return EV_A; |
|
|
3309 | |
|
|
3310 | ev_free (EV_A); |
|
|
3311 | return 0; |
|
|
3312 | } |
|
|
3313 | |
|
|
3314 | #endif /* multiplicity */ |
|
|
3315 | |
|
|
3316 | #if EV_VERIFY |
|
|
3317 | ecb_noinline ecb_cold |
|
|
3318 | static void |
|
|
3319 | verify_watcher (EV_P_ W w) |
|
|
3320 | { |
|
|
3321 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
3322 | |
|
|
3323 | if (w->pending) |
|
|
3324 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
3325 | } |
|
|
3326 | |
|
|
3327 | ecb_noinline ecb_cold |
|
|
3328 | static void |
|
|
3329 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
3330 | { |
|
|
3331 | int i; |
|
|
3332 | |
|
|
3333 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
3334 | { |
|
|
3335 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
3336 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
3337 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
3338 | |
|
|
3339 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
3340 | } |
|
|
3341 | } |
|
|
3342 | |
|
|
3343 | ecb_noinline ecb_cold |
|
|
3344 | static void |
|
|
3345 | array_verify (EV_P_ W *ws, int cnt) |
|
|
3346 | { |
|
|
3347 | while (cnt--) |
|
|
3348 | { |
|
|
3349 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
3350 | verify_watcher (EV_A_ ws [cnt]); |
|
|
3351 | } |
|
|
3352 | } |
|
|
3353 | #endif |
|
|
3354 | |
|
|
3355 | #if EV_FEATURE_API |
|
|
3356 | void ecb_cold |
|
|
3357 | ev_verify (EV_P) EV_NOEXCEPT |
|
|
3358 | { |
|
|
3359 | #if EV_VERIFY |
|
|
3360 | int i; |
|
|
3361 | WL w, w2; |
|
|
3362 | |
|
|
3363 | assert (activecnt >= -1); |
|
|
3364 | |
|
|
3365 | assert (fdchangemax >= fdchangecnt); |
|
|
3366 | for (i = 0; i < fdchangecnt; ++i) |
|
|
3367 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
3368 | |
|
|
3369 | assert (anfdmax >= 0); |
|
|
3370 | for (i = 0; i < anfdmax; ++i) |
|
|
3371 | { |
|
|
3372 | int j = 0; |
|
|
3373 | |
|
|
3374 | for (w = w2 = anfds [i].head; w; w = w->next) |
|
|
3375 | { |
|
|
3376 | verify_watcher (EV_A_ (W)w); |
|
|
3377 | |
|
|
3378 | if (j++ & 1) |
|
|
3379 | { |
|
|
3380 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3381 | w2 = w2->next; |
|
|
3382 | } |
|
|
3383 | |
|
|
3384 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
3385 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
3386 | } |
|
|
3387 | } |
|
|
3388 | |
|
|
3389 | assert (timermax >= timercnt); |
|
|
3390 | verify_heap (EV_A_ timers, timercnt); |
|
|
3391 | |
|
|
3392 | #if EV_PERIODIC_ENABLE |
|
|
3393 | assert (periodicmax >= periodiccnt); |
|
|
3394 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
3395 | #endif |
|
|
3396 | |
|
|
3397 | for (i = NUMPRI; i--; ) |
|
|
3398 | { |
|
|
3399 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
3400 | #if EV_IDLE_ENABLE |
|
|
3401 | assert (idleall >= 0); |
|
|
3402 | assert (idlemax [i] >= idlecnt [i]); |
|
|
3403 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
3404 | #endif |
|
|
3405 | } |
|
|
3406 | |
|
|
3407 | #if EV_FORK_ENABLE |
|
|
3408 | assert (forkmax >= forkcnt); |
|
|
3409 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
3410 | #endif |
|
|
3411 | |
|
|
3412 | #if EV_CLEANUP_ENABLE |
|
|
3413 | assert (cleanupmax >= cleanupcnt); |
|
|
3414 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3415 | #endif |
|
|
3416 | |
1430 | #if EV_ASYNC_ENABLE |
3417 | #if EV_ASYNC_ENABLE |
1431 | gotasync = 1; |
3418 | assert (asyncmax >= asynccnt); |
|
|
3419 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
3420 | #endif |
|
|
3421 | |
|
|
3422 | #if EV_PREPARE_ENABLE |
|
|
3423 | assert (preparemax >= preparecnt); |
|
|
3424 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
3425 | #endif |
|
|
3426 | |
|
|
3427 | #if EV_CHECK_ENABLE |
|
|
3428 | assert (checkmax >= checkcnt); |
|
|
3429 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
3430 | #endif |
|
|
3431 | |
|
|
3432 | # if 0 |
|
|
3433 | #if EV_CHILD_ENABLE |
|
|
3434 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
3435 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
3436 | #endif |
1432 | #endif |
3437 | # endif |
1433 | |
|
|
1434 | ev_ref (EV_A); |
|
|
1435 | ev_io_stop (EV_A_ &pipeev); |
|
|
1436 | |
|
|
1437 | #if EV_USE_EVENTFD |
|
|
1438 | if (evfd >= 0) |
|
|
1439 | close (evfd); |
|
|
1440 | #endif |
3438 | #endif |
1441 | |
|
|
1442 | if (evpipe [0] >= 0) |
|
|
1443 | { |
|
|
1444 | close (evpipe [0]); |
|
|
1445 | close (evpipe [1]); |
|
|
1446 | } |
|
|
1447 | |
|
|
1448 | evpipe_init (EV_A); |
|
|
1449 | /* now iterate over everything, in case we missed something */ |
|
|
1450 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1451 | } |
|
|
1452 | |
|
|
1453 | postfork = 0; |
|
|
1454 | } |
3439 | } |
|
|
3440 | #endif |
1455 | |
3441 | |
1456 | #if EV_MULTIPLICITY |
3442 | #if EV_MULTIPLICITY |
|
|
3443 | ecb_cold |
1457 | struct ev_loop * |
3444 | struct ev_loop * |
1458 | ev_loop_new (unsigned int flags) |
|
|
1459 | { |
|
|
1460 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1461 | |
|
|
1462 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1463 | |
|
|
1464 | loop_init (EV_A_ flags); |
|
|
1465 | |
|
|
1466 | if (ev_backend (EV_A)) |
|
|
1467 | return loop; |
|
|
1468 | |
|
|
1469 | return 0; |
|
|
1470 | } |
|
|
1471 | |
|
|
1472 | void |
|
|
1473 | ev_loop_destroy (EV_P) |
|
|
1474 | { |
|
|
1475 | loop_destroy (EV_A); |
|
|
1476 | ev_free (loop); |
|
|
1477 | } |
|
|
1478 | |
|
|
1479 | void |
|
|
1480 | ev_loop_fork (EV_P) |
|
|
1481 | { |
|
|
1482 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1483 | } |
|
|
1484 | #endif |
|
|
1485 | |
|
|
1486 | #if EV_MULTIPLICITY |
|
|
1487 | struct ev_loop * |
|
|
1488 | ev_default_loop_init (unsigned int flags) |
|
|
1489 | #else |
3445 | #else |
1490 | int |
3446 | int |
|
|
3447 | #endif |
1491 | ev_default_loop (unsigned int flags) |
3448 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
1492 | #endif |
|
|
1493 | { |
3449 | { |
1494 | if (!ev_default_loop_ptr) |
3450 | if (!ev_default_loop_ptr) |
1495 | { |
3451 | { |
1496 | #if EV_MULTIPLICITY |
3452 | #if EV_MULTIPLICITY |
1497 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
3453 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1498 | #else |
3454 | #else |
1499 | ev_default_loop_ptr = 1; |
3455 | ev_default_loop_ptr = 1; |
1500 | #endif |
3456 | #endif |
1501 | |
3457 | |
1502 | loop_init (EV_A_ flags); |
3458 | loop_init (EV_A_ flags); |
1503 | |
3459 | |
1504 | if (ev_backend (EV_A)) |
3460 | if (ev_backend (EV_A)) |
1505 | { |
3461 | { |
1506 | #ifndef _WIN32 |
3462 | #if EV_CHILD_ENABLE |
1507 | ev_signal_init (&childev, childcb, SIGCHLD); |
3463 | ev_signal_init (&childev, childcb, SIGCHLD); |
1508 | ev_set_priority (&childev, EV_MAXPRI); |
3464 | ev_set_priority (&childev, EV_MAXPRI); |
1509 | ev_signal_start (EV_A_ &childev); |
3465 | ev_signal_start (EV_A_ &childev); |
1510 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
3466 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1511 | #endif |
3467 | #endif |
… | |
… | |
1516 | |
3472 | |
1517 | return ev_default_loop_ptr; |
3473 | return ev_default_loop_ptr; |
1518 | } |
3474 | } |
1519 | |
3475 | |
1520 | void |
3476 | void |
1521 | ev_default_destroy (void) |
3477 | ev_loop_fork (EV_P) EV_NOEXCEPT |
1522 | { |
3478 | { |
1523 | #if EV_MULTIPLICITY |
3479 | postfork = 1; |
1524 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1525 | #endif |
|
|
1526 | |
|
|
1527 | #ifndef _WIN32 |
|
|
1528 | ev_ref (EV_A); /* child watcher */ |
|
|
1529 | ev_signal_stop (EV_A_ &childev); |
|
|
1530 | #endif |
|
|
1531 | |
|
|
1532 | loop_destroy (EV_A); |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | void |
|
|
1536 | ev_default_fork (void) |
|
|
1537 | { |
|
|
1538 | #if EV_MULTIPLICITY |
|
|
1539 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1540 | #endif |
|
|
1541 | |
|
|
1542 | if (backend) |
|
|
1543 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1544 | } |
3480 | } |
1545 | |
3481 | |
1546 | /*****************************************************************************/ |
3482 | /*****************************************************************************/ |
1547 | |
3483 | |
1548 | void |
3484 | void |
1549 | ev_invoke (EV_P_ void *w, int revents) |
3485 | ev_invoke (EV_P_ void *w, int revents) |
1550 | { |
3486 | { |
1551 | EV_CB_INVOKE ((W)w, revents); |
3487 | EV_CB_INVOKE ((W)w, revents); |
1552 | } |
3488 | } |
1553 | |
3489 | |
1554 | void inline_speed |
3490 | unsigned int |
1555 | call_pending (EV_P) |
3491 | ev_pending_count (EV_P) EV_NOEXCEPT |
1556 | { |
3492 | { |
1557 | int pri; |
3493 | int pri; |
|
|
3494 | unsigned int count = 0; |
1558 | |
3495 | |
1559 | for (pri = NUMPRI; pri--; ) |
3496 | for (pri = NUMPRI; pri--; ) |
|
|
3497 | count += pendingcnt [pri]; |
|
|
3498 | |
|
|
3499 | return count; |
|
|
3500 | } |
|
|
3501 | |
|
|
3502 | ecb_noinline |
|
|
3503 | void |
|
|
3504 | ev_invoke_pending (EV_P) |
|
|
3505 | { |
|
|
3506 | pendingpri = NUMPRI; |
|
|
3507 | |
|
|
3508 | do |
|
|
3509 | { |
|
|
3510 | --pendingpri; |
|
|
3511 | |
|
|
3512 | /* pendingpri possibly gets modified in the inner loop */ |
1560 | while (pendingcnt [pri]) |
3513 | while (pendingcnt [pendingpri]) |
1561 | { |
|
|
1562 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
|
|
1563 | |
|
|
1564 | if (expect_true (p->w)) |
|
|
1565 | { |
3514 | { |
1566 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
3515 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1567 | |
3516 | |
1568 | p->w->pending = 0; |
3517 | p->w->pending = 0; |
1569 | EV_CB_INVOKE (p->w, p->events); |
3518 | EV_CB_INVOKE (p->w, p->events); |
|
|
3519 | EV_FREQUENT_CHECK; |
1570 | } |
3520 | } |
1571 | } |
3521 | } |
|
|
3522 | while (pendingpri); |
1572 | } |
3523 | } |
1573 | |
3524 | |
1574 | #if EV_IDLE_ENABLE |
3525 | #if EV_IDLE_ENABLE |
1575 | void inline_size |
3526 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
3527 | /* only when higher priorities are idle" logic */ |
|
|
3528 | inline_size void |
1576 | idle_reify (EV_P) |
3529 | idle_reify (EV_P) |
1577 | { |
3530 | { |
1578 | if (expect_false (idleall)) |
3531 | if (ecb_expect_false (idleall)) |
1579 | { |
3532 | { |
1580 | int pri; |
3533 | int pri; |
1581 | |
3534 | |
1582 | for (pri = NUMPRI; pri--; ) |
3535 | for (pri = NUMPRI; pri--; ) |
1583 | { |
3536 | { |
… | |
… | |
1592 | } |
3545 | } |
1593 | } |
3546 | } |
1594 | } |
3547 | } |
1595 | #endif |
3548 | #endif |
1596 | |
3549 | |
1597 | void inline_size |
3550 | /* make timers pending */ |
|
|
3551 | inline_size void |
1598 | timers_reify (EV_P) |
3552 | timers_reify (EV_P) |
1599 | { |
3553 | { |
|
|
3554 | EV_FREQUENT_CHECK; |
|
|
3555 | |
1600 | while (timercnt && ANHE_at (timers [HEAP0]) <= mn_now) |
3556 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1601 | { |
3557 | { |
1602 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
3558 | do |
1603 | |
|
|
1604 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1605 | |
|
|
1606 | /* first reschedule or stop timer */ |
|
|
1607 | if (w->repeat) |
|
|
1608 | { |
3559 | { |
1609 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3560 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1610 | |
3561 | |
|
|
3562 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
3563 | |
|
|
3564 | /* first reschedule or stop timer */ |
|
|
3565 | if (w->repeat) |
|
|
3566 | { |
1611 | ev_at (w) += w->repeat; |
3567 | ev_at (w) += w->repeat; |
1612 | if (ev_at (w) < mn_now) |
3568 | if (ev_at (w) < mn_now) |
1613 | ev_at (w) = mn_now; |
3569 | ev_at (w) = mn_now; |
1614 | |
3570 | |
|
|
3571 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
|
|
3572 | |
1615 | ANHE_at_set (timers [HEAP0]); |
3573 | ANHE_at_cache (timers [HEAP0]); |
1616 | downheap (timers, timercnt, HEAP0); |
3574 | downheap (timers, timercnt, HEAP0); |
|
|
3575 | } |
|
|
3576 | else |
|
|
3577 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
3578 | |
|
|
3579 | EV_FREQUENT_CHECK; |
|
|
3580 | feed_reverse (EV_A_ (W)w); |
1617 | } |
3581 | } |
1618 | else |
3582 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1619 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1620 | |
3583 | |
1621 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
3584 | feed_reverse_done (EV_A_ EV_TIMER); |
1622 | } |
3585 | } |
1623 | } |
3586 | } |
1624 | |
3587 | |
1625 | #if EV_PERIODIC_ENABLE |
3588 | #if EV_PERIODIC_ENABLE |
1626 | void inline_size |
3589 | |
|
|
3590 | ecb_noinline |
|
|
3591 | static void |
|
|
3592 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3593 | { |
|
|
3594 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3595 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3596 | |
|
|
3597 | /* the above almost always errs on the low side */ |
|
|
3598 | while (at <= ev_rt_now) |
|
|
3599 | { |
|
|
3600 | ev_tstamp nat = at + w->interval; |
|
|
3601 | |
|
|
3602 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3603 | if (ecb_expect_false (nat == at)) |
|
|
3604 | { |
|
|
3605 | at = ev_rt_now; |
|
|
3606 | break; |
|
|
3607 | } |
|
|
3608 | |
|
|
3609 | at = nat; |
|
|
3610 | } |
|
|
3611 | |
|
|
3612 | ev_at (w) = at; |
|
|
3613 | } |
|
|
3614 | |
|
|
3615 | /* make periodics pending */ |
|
|
3616 | inline_size void |
1627 | periodics_reify (EV_P) |
3617 | periodics_reify (EV_P) |
1628 | { |
3618 | { |
|
|
3619 | EV_FREQUENT_CHECK; |
|
|
3620 | |
1629 | while (periodiccnt && ANHE_at (periodics [HEAP0]) <= ev_rt_now) |
3621 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1630 | { |
3622 | { |
1631 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3623 | do |
1632 | |
|
|
1633 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1634 | |
|
|
1635 | /* first reschedule or stop timer */ |
|
|
1636 | if (w->reschedule_cb) |
|
|
1637 | { |
3624 | { |
|
|
3625 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
3626 | |
|
|
3627 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
3628 | |
|
|
3629 | /* first reschedule or stop timer */ |
|
|
3630 | if (w->reschedule_cb) |
|
|
3631 | { |
1638 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
3632 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
3633 | |
1639 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
3634 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
3635 | |
1640 | ANHE_at_set (periodics [HEAP0]); |
3636 | ANHE_at_cache (periodics [HEAP0]); |
1641 | downheap (periodics, periodiccnt, HEAP0); |
3637 | downheap (periodics, periodiccnt, HEAP0); |
|
|
3638 | } |
|
|
3639 | else if (w->interval) |
|
|
3640 | { |
|
|
3641 | periodic_recalc (EV_A_ w); |
|
|
3642 | ANHE_at_cache (periodics [HEAP0]); |
|
|
3643 | downheap (periodics, periodiccnt, HEAP0); |
|
|
3644 | } |
|
|
3645 | else |
|
|
3646 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
3647 | |
|
|
3648 | EV_FREQUENT_CHECK; |
|
|
3649 | feed_reverse (EV_A_ (W)w); |
1642 | } |
3650 | } |
1643 | else if (w->interval) |
3651 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1644 | { |
|
|
1645 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1646 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1647 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1648 | ANHE_at_set (periodics [HEAP0]); |
|
|
1649 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1650 | } |
|
|
1651 | else |
|
|
1652 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1653 | |
3652 | |
1654 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
3653 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1655 | } |
3654 | } |
1656 | } |
3655 | } |
1657 | |
3656 | |
1658 | static void noinline |
3657 | /* simply recalculate all periodics */ |
|
|
3658 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
3659 | ecb_noinline ecb_cold |
|
|
3660 | static void |
1659 | periodics_reschedule (EV_P) |
3661 | periodics_reschedule (EV_P) |
1660 | { |
3662 | { |
1661 | int i; |
3663 | int i; |
1662 | |
3664 | |
1663 | /* adjust periodics after time jump */ |
3665 | /* adjust periodics after time jump */ |
… | |
… | |
1666 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3668 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1667 | |
3669 | |
1668 | if (w->reschedule_cb) |
3670 | if (w->reschedule_cb) |
1669 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3671 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1670 | else if (w->interval) |
3672 | else if (w->interval) |
1671 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3673 | periodic_recalc (EV_A_ w); |
1672 | |
3674 | |
1673 | ANHE_at_set (periodics [i]); |
3675 | ANHE_at_cache (periodics [i]); |
|
|
3676 | } |
|
|
3677 | |
|
|
3678 | reheap (periodics, periodiccnt); |
|
|
3679 | } |
|
|
3680 | #endif |
|
|
3681 | |
|
|
3682 | /* adjust all timers by a given offset */ |
|
|
3683 | ecb_noinline ecb_cold |
|
|
3684 | static void |
|
|
3685 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
3686 | { |
|
|
3687 | int i; |
|
|
3688 | |
|
|
3689 | for (i = 0; i < timercnt; ++i) |
1674 | } |
3690 | { |
1675 | |
3691 | ANHE *he = timers + i + HEAP0; |
1676 | /* now rebuild the heap, this for the 2-heap, inefficient for the 4-heap, but correct */ |
3692 | ANHE_w (*he)->at += adjust; |
1677 | for (i = periodiccnt >> 1; --i; ) |
3693 | ANHE_at_cache (*he); |
1678 | downheap (periodics, periodiccnt, i + HEAP0); |
3694 | } |
1679 | } |
3695 | } |
1680 | #endif |
|
|
1681 | |
3696 | |
1682 | void inline_speed |
3697 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
3698 | /* also detect if there was a timejump, and act accordingly */ |
|
|
3699 | inline_speed void |
1683 | time_update (EV_P_ ev_tstamp max_block) |
3700 | time_update (EV_P_ ev_tstamp max_block) |
1684 | { |
3701 | { |
1685 | int i; |
|
|
1686 | |
|
|
1687 | #if EV_USE_MONOTONIC |
3702 | #if EV_USE_MONOTONIC |
1688 | if (expect_true (have_monotonic)) |
3703 | if (ecb_expect_true (have_monotonic)) |
1689 | { |
3704 | { |
|
|
3705 | int i; |
1690 | ev_tstamp odiff = rtmn_diff; |
3706 | ev_tstamp odiff = rtmn_diff; |
1691 | |
3707 | |
1692 | mn_now = get_clock (); |
3708 | mn_now = get_clock (); |
1693 | |
3709 | |
1694 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3710 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1695 | /* interpolate in the meantime */ |
3711 | /* interpolate in the meantime */ |
1696 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3712 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
1697 | { |
3713 | { |
1698 | ev_rt_now = rtmn_diff + mn_now; |
3714 | ev_rt_now = rtmn_diff + mn_now; |
1699 | return; |
3715 | return; |
1700 | } |
3716 | } |
1701 | |
3717 | |
… | |
… | |
1710 | * doesn't hurt either as we only do this on time-jumps or |
3726 | * doesn't hurt either as we only do this on time-jumps or |
1711 | * in the unlikely event of having been preempted here. |
3727 | * in the unlikely event of having been preempted here. |
1712 | */ |
3728 | */ |
1713 | for (i = 4; --i; ) |
3729 | for (i = 4; --i; ) |
1714 | { |
3730 | { |
|
|
3731 | ev_tstamp diff; |
1715 | rtmn_diff = ev_rt_now - mn_now; |
3732 | rtmn_diff = ev_rt_now - mn_now; |
1716 | |
3733 | |
1717 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3734 | diff = odiff - rtmn_diff; |
|
|
3735 | |
|
|
3736 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
1718 | return; /* all is well */ |
3737 | return; /* all is well */ |
1719 | |
3738 | |
1720 | ev_rt_now = ev_time (); |
3739 | ev_rt_now = ev_time (); |
1721 | mn_now = get_clock (); |
3740 | mn_now = get_clock (); |
1722 | now_floor = mn_now; |
3741 | now_floor = mn_now; |
1723 | } |
3742 | } |
1724 | |
3743 | |
|
|
3744 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
3745 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1725 | # if EV_PERIODIC_ENABLE |
3746 | # if EV_PERIODIC_ENABLE |
1726 | periodics_reschedule (EV_A); |
3747 | periodics_reschedule (EV_A); |
1727 | # endif |
3748 | # endif |
1728 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1729 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1730 | } |
3749 | } |
1731 | else |
3750 | else |
1732 | #endif |
3751 | #endif |
1733 | { |
3752 | { |
1734 | ev_rt_now = ev_time (); |
3753 | ev_rt_now = ev_time (); |
1735 | |
3754 | |
1736 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3755 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
1737 | { |
3756 | { |
|
|
3757 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
3758 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1738 | #if EV_PERIODIC_ENABLE |
3759 | #if EV_PERIODIC_ENABLE |
1739 | periodics_reschedule (EV_A); |
3760 | periodics_reschedule (EV_A); |
1740 | #endif |
3761 | #endif |
1741 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1742 | for (i = 0; i < timercnt; ++i) |
|
|
1743 | { |
|
|
1744 | ANHE *he = timers + i + HEAP0; |
|
|
1745 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1746 | ANHE_at_set (*he); |
|
|
1747 | } |
|
|
1748 | } |
3762 | } |
1749 | |
3763 | |
1750 | mn_now = ev_rt_now; |
3764 | mn_now = ev_rt_now; |
1751 | } |
3765 | } |
1752 | } |
3766 | } |
1753 | |
3767 | |
1754 | void |
3768 | int |
1755 | ev_ref (EV_P) |
|
|
1756 | { |
|
|
1757 | ++activecnt; |
|
|
1758 | } |
|
|
1759 | |
|
|
1760 | void |
|
|
1761 | ev_unref (EV_P) |
|
|
1762 | { |
|
|
1763 | --activecnt; |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | static int loop_done; |
|
|
1767 | |
|
|
1768 | void |
|
|
1769 | ev_loop (EV_P_ int flags) |
3769 | ev_run (EV_P_ int flags) |
1770 | { |
3770 | { |
|
|
3771 | #if EV_FEATURE_API |
|
|
3772 | ++loop_depth; |
|
|
3773 | #endif |
|
|
3774 | |
|
|
3775 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3776 | |
1771 | loop_done = EVUNLOOP_CANCEL; |
3777 | loop_done = EVBREAK_CANCEL; |
1772 | |
3778 | |
1773 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
3779 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1774 | |
3780 | |
1775 | do |
3781 | do |
1776 | { |
3782 | { |
|
|
3783 | #if EV_VERIFY >= 2 |
|
|
3784 | ev_verify (EV_A); |
|
|
3785 | #endif |
|
|
3786 | |
1777 | #ifndef _WIN32 |
3787 | #ifndef _WIN32 |
1778 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3788 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
1779 | if (expect_false (getpid () != curpid)) |
3789 | if (ecb_expect_false (getpid () != curpid)) |
1780 | { |
3790 | { |
1781 | curpid = getpid (); |
3791 | curpid = getpid (); |
1782 | postfork = 1; |
3792 | postfork = 1; |
1783 | } |
3793 | } |
1784 | #endif |
3794 | #endif |
1785 | |
3795 | |
1786 | #if EV_FORK_ENABLE |
3796 | #if EV_FORK_ENABLE |
1787 | /* we might have forked, so queue fork handlers */ |
3797 | /* we might have forked, so queue fork handlers */ |
1788 | if (expect_false (postfork)) |
3798 | if (ecb_expect_false (postfork)) |
1789 | if (forkcnt) |
3799 | if (forkcnt) |
1790 | { |
3800 | { |
1791 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3801 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1792 | call_pending (EV_A); |
3802 | EV_INVOKE_PENDING; |
1793 | } |
3803 | } |
1794 | #endif |
3804 | #endif |
1795 | |
3805 | |
|
|
3806 | #if EV_PREPARE_ENABLE |
1796 | /* queue prepare watchers (and execute them) */ |
3807 | /* queue prepare watchers (and execute them) */ |
1797 | if (expect_false (preparecnt)) |
3808 | if (ecb_expect_false (preparecnt)) |
1798 | { |
3809 | { |
1799 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3810 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1800 | call_pending (EV_A); |
3811 | EV_INVOKE_PENDING; |
1801 | } |
3812 | } |
|
|
3813 | #endif |
1802 | |
3814 | |
1803 | if (expect_false (!activecnt)) |
3815 | if (ecb_expect_false (loop_done)) |
1804 | break; |
3816 | break; |
1805 | |
3817 | |
1806 | /* we might have forked, so reify kernel state if necessary */ |
3818 | /* we might have forked, so reify kernel state if necessary */ |
1807 | if (expect_false (postfork)) |
3819 | if (ecb_expect_false (postfork)) |
1808 | loop_fork (EV_A); |
3820 | loop_fork (EV_A); |
1809 | |
3821 | |
1810 | /* update fd-related kernel structures */ |
3822 | /* update fd-related kernel structures */ |
1811 | fd_reify (EV_A); |
3823 | fd_reify (EV_A); |
1812 | |
3824 | |
1813 | /* calculate blocking time */ |
3825 | /* calculate blocking time */ |
1814 | { |
3826 | { |
1815 | ev_tstamp waittime = 0.; |
3827 | ev_tstamp waittime = 0.; |
1816 | ev_tstamp sleeptime = 0.; |
3828 | ev_tstamp sleeptime = 0.; |
1817 | |
3829 | |
|
|
3830 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3831 | ev_tstamp prev_mn_now = mn_now; |
|
|
3832 | |
|
|
3833 | /* update time to cancel out callback processing overhead */ |
|
|
3834 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
|
|
3835 | |
|
|
3836 | /* from now on, we want a pipe-wake-up */ |
|
|
3837 | pipe_write_wanted = 1; |
|
|
3838 | |
|
|
3839 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3840 | |
1818 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3841 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1819 | { |
3842 | { |
1820 | /* update time to cancel out callback processing overhead */ |
|
|
1821 | time_update (EV_A_ 1e100); |
|
|
1822 | |
|
|
1823 | waittime = MAX_BLOCKTIME; |
3843 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
1824 | |
3844 | |
1825 | if (timercnt) |
3845 | if (timercnt) |
1826 | { |
3846 | { |
1827 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3847 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1828 | if (waittime > to) waittime = to; |
3848 | if (waittime > to) waittime = to; |
1829 | } |
3849 | } |
1830 | |
3850 | |
1831 | #if EV_PERIODIC_ENABLE |
3851 | #if EV_PERIODIC_ENABLE |
1832 | if (periodiccnt) |
3852 | if (periodiccnt) |
1833 | { |
3853 | { |
1834 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3854 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1835 | if (waittime > to) waittime = to; |
3855 | if (waittime > to) waittime = to; |
1836 | } |
3856 | } |
1837 | #endif |
3857 | #endif |
1838 | |
3858 | |
|
|
3859 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1839 | if (expect_false (waittime < timeout_blocktime)) |
3860 | if (ecb_expect_false (waittime < timeout_blocktime)) |
1840 | waittime = timeout_blocktime; |
3861 | waittime = timeout_blocktime; |
1841 | |
3862 | |
1842 | sleeptime = waittime - backend_fudge; |
3863 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3864 | /* to pass a minimum nonzero value to the backend */ |
|
|
3865 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3866 | waittime = backend_mintime; |
1843 | |
3867 | |
|
|
3868 | /* extra check because io_blocktime is commonly 0 */ |
1844 | if (expect_true (sleeptime > io_blocktime)) |
3869 | if (ecb_expect_false (io_blocktime)) |
1845 | sleeptime = io_blocktime; |
|
|
1846 | |
|
|
1847 | if (sleeptime) |
|
|
1848 | { |
3870 | { |
|
|
3871 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3872 | |
|
|
3873 | if (sleeptime > waittime - backend_mintime) |
|
|
3874 | sleeptime = waittime - backend_mintime; |
|
|
3875 | |
|
|
3876 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
|
|
3877 | { |
1849 | ev_sleep (sleeptime); |
3878 | ev_sleep (sleeptime); |
1850 | waittime -= sleeptime; |
3879 | waittime -= sleeptime; |
|
|
3880 | } |
1851 | } |
3881 | } |
1852 | } |
3882 | } |
1853 | |
3883 | |
|
|
3884 | #if EV_FEATURE_API |
1854 | ++loop_count; |
3885 | ++loop_count; |
|
|
3886 | #endif |
|
|
3887 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1855 | backend_poll (EV_A_ waittime); |
3888 | backend_poll (EV_A_ waittime); |
|
|
3889 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3890 | |
|
|
3891 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3892 | |
|
|
3893 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3894 | if (pipe_write_skipped) |
|
|
3895 | { |
|
|
3896 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3897 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3898 | } |
1856 | |
3899 | |
1857 | /* update ev_rt_now, do magic */ |
3900 | /* update ev_rt_now, do magic */ |
1858 | time_update (EV_A_ waittime + sleeptime); |
3901 | time_update (EV_A_ waittime + sleeptime); |
1859 | } |
3902 | } |
1860 | |
3903 | |
… | |
… | |
1867 | #if EV_IDLE_ENABLE |
3910 | #if EV_IDLE_ENABLE |
1868 | /* queue idle watchers unless other events are pending */ |
3911 | /* queue idle watchers unless other events are pending */ |
1869 | idle_reify (EV_A); |
3912 | idle_reify (EV_A); |
1870 | #endif |
3913 | #endif |
1871 | |
3914 | |
|
|
3915 | #if EV_CHECK_ENABLE |
1872 | /* queue check watchers, to be executed first */ |
3916 | /* queue check watchers, to be executed first */ |
1873 | if (expect_false (checkcnt)) |
3917 | if (ecb_expect_false (checkcnt)) |
1874 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3918 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3919 | #endif |
1875 | |
3920 | |
1876 | call_pending (EV_A); |
3921 | EV_INVOKE_PENDING; |
1877 | } |
3922 | } |
1878 | while (expect_true ( |
3923 | while (ecb_expect_true ( |
1879 | activecnt |
3924 | activecnt |
1880 | && !loop_done |
3925 | && !loop_done |
1881 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3926 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
1882 | )); |
3927 | )); |
1883 | |
3928 | |
1884 | if (loop_done == EVUNLOOP_ONE) |
3929 | if (loop_done == EVBREAK_ONE) |
1885 | loop_done = EVUNLOOP_CANCEL; |
3930 | loop_done = EVBREAK_CANCEL; |
1886 | } |
|
|
1887 | |
3931 | |
|
|
3932 | #if EV_FEATURE_API |
|
|
3933 | --loop_depth; |
|
|
3934 | #endif |
|
|
3935 | |
|
|
3936 | return activecnt; |
|
|
3937 | } |
|
|
3938 | |
1888 | void |
3939 | void |
1889 | ev_unloop (EV_P_ int how) |
3940 | ev_break (EV_P_ int how) EV_NOEXCEPT |
1890 | { |
3941 | { |
1891 | loop_done = how; |
3942 | loop_done = how; |
1892 | } |
3943 | } |
1893 | |
3944 | |
|
|
3945 | void |
|
|
3946 | ev_ref (EV_P) EV_NOEXCEPT |
|
|
3947 | { |
|
|
3948 | ++activecnt; |
|
|
3949 | } |
|
|
3950 | |
|
|
3951 | void |
|
|
3952 | ev_unref (EV_P) EV_NOEXCEPT |
|
|
3953 | { |
|
|
3954 | --activecnt; |
|
|
3955 | } |
|
|
3956 | |
|
|
3957 | void |
|
|
3958 | ev_now_update (EV_P) EV_NOEXCEPT |
|
|
3959 | { |
|
|
3960 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
3961 | } |
|
|
3962 | |
|
|
3963 | void |
|
|
3964 | ev_suspend (EV_P) EV_NOEXCEPT |
|
|
3965 | { |
|
|
3966 | ev_now_update (EV_A); |
|
|
3967 | } |
|
|
3968 | |
|
|
3969 | void |
|
|
3970 | ev_resume (EV_P) EV_NOEXCEPT |
|
|
3971 | { |
|
|
3972 | ev_tstamp mn_prev = mn_now; |
|
|
3973 | |
|
|
3974 | ev_now_update (EV_A); |
|
|
3975 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3976 | #if EV_PERIODIC_ENABLE |
|
|
3977 | /* TODO: really do this? */ |
|
|
3978 | periodics_reschedule (EV_A); |
|
|
3979 | #endif |
|
|
3980 | } |
|
|
3981 | |
1894 | /*****************************************************************************/ |
3982 | /*****************************************************************************/ |
|
|
3983 | /* singly-linked list management, used when the expected list length is short */ |
1895 | |
3984 | |
1896 | void inline_size |
3985 | inline_size void |
1897 | wlist_add (WL *head, WL elem) |
3986 | wlist_add (WL *head, WL elem) |
1898 | { |
3987 | { |
1899 | elem->next = *head; |
3988 | elem->next = *head; |
1900 | *head = elem; |
3989 | *head = elem; |
1901 | } |
3990 | } |
1902 | |
3991 | |
1903 | void inline_size |
3992 | inline_size void |
1904 | wlist_del (WL *head, WL elem) |
3993 | wlist_del (WL *head, WL elem) |
1905 | { |
3994 | { |
1906 | while (*head) |
3995 | while (*head) |
1907 | { |
3996 | { |
1908 | if (*head == elem) |
3997 | if (ecb_expect_true (*head == elem)) |
1909 | { |
3998 | { |
1910 | *head = elem->next; |
3999 | *head = elem->next; |
1911 | return; |
4000 | break; |
1912 | } |
4001 | } |
1913 | |
4002 | |
1914 | head = &(*head)->next; |
4003 | head = &(*head)->next; |
1915 | } |
4004 | } |
1916 | } |
4005 | } |
1917 | |
4006 | |
1918 | void inline_speed |
4007 | /* internal, faster, version of ev_clear_pending */ |
|
|
4008 | inline_speed void |
1919 | clear_pending (EV_P_ W w) |
4009 | clear_pending (EV_P_ W w) |
1920 | { |
4010 | { |
1921 | if (w->pending) |
4011 | if (w->pending) |
1922 | { |
4012 | { |
1923 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
4013 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1924 | w->pending = 0; |
4014 | w->pending = 0; |
1925 | } |
4015 | } |
1926 | } |
4016 | } |
1927 | |
4017 | |
1928 | int |
4018 | int |
1929 | ev_clear_pending (EV_P_ void *w) |
4019 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
1930 | { |
4020 | { |
1931 | W w_ = (W)w; |
4021 | W w_ = (W)w; |
1932 | int pending = w_->pending; |
4022 | int pending = w_->pending; |
1933 | |
4023 | |
1934 | if (expect_true (pending)) |
4024 | if (ecb_expect_true (pending)) |
1935 | { |
4025 | { |
1936 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4026 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
4027 | p->w = (W)&pending_w; |
1937 | w_->pending = 0; |
4028 | w_->pending = 0; |
1938 | p->w = 0; |
|
|
1939 | return p->events; |
4029 | return p->events; |
1940 | } |
4030 | } |
1941 | else |
4031 | else |
1942 | return 0; |
4032 | return 0; |
1943 | } |
4033 | } |
1944 | |
4034 | |
1945 | void inline_size |
4035 | inline_size void |
1946 | pri_adjust (EV_P_ W w) |
4036 | pri_adjust (EV_P_ W w) |
1947 | { |
4037 | { |
1948 | int pri = w->priority; |
4038 | int pri = ev_priority (w); |
1949 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
4039 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1950 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
4040 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1951 | w->priority = pri; |
4041 | ev_set_priority (w, pri); |
1952 | } |
4042 | } |
1953 | |
4043 | |
1954 | void inline_speed |
4044 | inline_speed void |
1955 | ev_start (EV_P_ W w, int active) |
4045 | ev_start (EV_P_ W w, int active) |
1956 | { |
4046 | { |
1957 | pri_adjust (EV_A_ w); |
4047 | pri_adjust (EV_A_ w); |
1958 | w->active = active; |
4048 | w->active = active; |
1959 | ev_ref (EV_A); |
4049 | ev_ref (EV_A); |
1960 | } |
4050 | } |
1961 | |
4051 | |
1962 | void inline_size |
4052 | inline_size void |
1963 | ev_stop (EV_P_ W w) |
4053 | ev_stop (EV_P_ W w) |
1964 | { |
4054 | { |
1965 | ev_unref (EV_A); |
4055 | ev_unref (EV_A); |
1966 | w->active = 0; |
4056 | w->active = 0; |
1967 | } |
4057 | } |
1968 | |
4058 | |
1969 | /*****************************************************************************/ |
4059 | /*****************************************************************************/ |
1970 | |
4060 | |
1971 | void noinline |
4061 | ecb_noinline |
|
|
4062 | void |
1972 | ev_io_start (EV_P_ ev_io *w) |
4063 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
1973 | { |
4064 | { |
1974 | int fd = w->fd; |
4065 | int fd = w->fd; |
1975 | |
4066 | |
1976 | if (expect_false (ev_is_active (w))) |
4067 | if (ecb_expect_false (ev_is_active (w))) |
1977 | return; |
4068 | return; |
1978 | |
4069 | |
1979 | assert (("ev_io_start called with negative fd", fd >= 0)); |
4070 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
4071 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
4072 | |
|
|
4073 | #if EV_VERIFY >= 2 |
|
|
4074 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4075 | #endif |
|
|
4076 | EV_FREQUENT_CHECK; |
1980 | |
4077 | |
1981 | ev_start (EV_A_ (W)w, 1); |
4078 | ev_start (EV_A_ (W)w, 1); |
1982 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
4079 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
1983 | wlist_add (&anfds[fd].head, (WL)w); |
4080 | wlist_add (&anfds[fd].head, (WL)w); |
1984 | |
4081 | |
|
|
4082 | /* common bug, apparently */ |
|
|
4083 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
4084 | |
1985 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
4085 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1986 | w->events &= ~EV_IOFDSET; |
4086 | w->events &= ~EV__IOFDSET; |
1987 | } |
|
|
1988 | |
4087 | |
1989 | void noinline |
4088 | EV_FREQUENT_CHECK; |
|
|
4089 | } |
|
|
4090 | |
|
|
4091 | ecb_noinline |
|
|
4092 | void |
1990 | ev_io_stop (EV_P_ ev_io *w) |
4093 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
1991 | { |
4094 | { |
1992 | clear_pending (EV_A_ (W)w); |
4095 | clear_pending (EV_A_ (W)w); |
1993 | if (expect_false (!ev_is_active (w))) |
4096 | if (ecb_expect_false (!ev_is_active (w))) |
1994 | return; |
4097 | return; |
1995 | |
4098 | |
1996 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4099 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
4100 | |
|
|
4101 | #if EV_VERIFY >= 2 |
|
|
4102 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4103 | #endif |
|
|
4104 | EV_FREQUENT_CHECK; |
1997 | |
4105 | |
1998 | wlist_del (&anfds[w->fd].head, (WL)w); |
4106 | wlist_del (&anfds[w->fd].head, (WL)w); |
1999 | ev_stop (EV_A_ (W)w); |
4107 | ev_stop (EV_A_ (W)w); |
2000 | |
4108 | |
2001 | fd_change (EV_A_ w->fd, 1); |
4109 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2002 | } |
|
|
2003 | |
4110 | |
2004 | void noinline |
4111 | EV_FREQUENT_CHECK; |
|
|
4112 | } |
|
|
4113 | |
|
|
4114 | ecb_noinline |
|
|
4115 | void |
2005 | ev_timer_start (EV_P_ ev_timer *w) |
4116 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2006 | { |
4117 | { |
2007 | if (expect_false (ev_is_active (w))) |
4118 | if (ecb_expect_false (ev_is_active (w))) |
2008 | return; |
4119 | return; |
2009 | |
4120 | |
2010 | ev_at (w) += mn_now; |
4121 | ev_at (w) += mn_now; |
2011 | |
4122 | |
2012 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4123 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2013 | |
4124 | |
|
|
4125 | EV_FREQUENT_CHECK; |
|
|
4126 | |
|
|
4127 | ++timercnt; |
2014 | ev_start (EV_A_ (W)w, ++timercnt + HEAP0 - 1); |
4128 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2015 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4129 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2016 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4130 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2017 | ANHE_at_set (timers [ev_active (w)]); |
4131 | ANHE_at_cache (timers [ev_active (w)]); |
2018 | upheap (timers, ev_active (w)); |
4132 | upheap (timers, ev_active (w)); |
2019 | |
4133 | |
|
|
4134 | EV_FREQUENT_CHECK; |
|
|
4135 | |
2020 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4136 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2021 | } |
4137 | } |
2022 | |
4138 | |
2023 | void noinline |
4139 | ecb_noinline |
|
|
4140 | void |
2024 | ev_timer_stop (EV_P_ ev_timer *w) |
4141 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2025 | { |
4142 | { |
2026 | clear_pending (EV_A_ (W)w); |
4143 | clear_pending (EV_A_ (W)w); |
2027 | if (expect_false (!ev_is_active (w))) |
4144 | if (ecb_expect_false (!ev_is_active (w))) |
2028 | return; |
4145 | return; |
|
|
4146 | |
|
|
4147 | EV_FREQUENT_CHECK; |
2029 | |
4148 | |
2030 | { |
4149 | { |
2031 | int active = ev_active (w); |
4150 | int active = ev_active (w); |
2032 | |
4151 | |
2033 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4152 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2034 | |
4153 | |
|
|
4154 | --timercnt; |
|
|
4155 | |
2035 | if (expect_true (active < timercnt + HEAP0 - 1)) |
4156 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2036 | { |
4157 | { |
2037 | timers [active] = timers [timercnt + HEAP0 - 1]; |
4158 | timers [active] = timers [timercnt + HEAP0]; |
2038 | adjustheap (timers, timercnt, active); |
4159 | adjustheap (timers, timercnt, active); |
2039 | } |
4160 | } |
2040 | |
|
|
2041 | --timercnt; |
|
|
2042 | } |
4161 | } |
2043 | |
4162 | |
2044 | ev_at (w) -= mn_now; |
4163 | ev_at (w) -= mn_now; |
2045 | |
4164 | |
2046 | ev_stop (EV_A_ (W)w); |
4165 | ev_stop (EV_A_ (W)w); |
2047 | } |
|
|
2048 | |
4166 | |
2049 | void noinline |
4167 | EV_FREQUENT_CHECK; |
|
|
4168 | } |
|
|
4169 | |
|
|
4170 | ecb_noinline |
|
|
4171 | void |
2050 | ev_timer_again (EV_P_ ev_timer *w) |
4172 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2051 | { |
4173 | { |
|
|
4174 | EV_FREQUENT_CHECK; |
|
|
4175 | |
|
|
4176 | clear_pending (EV_A_ (W)w); |
|
|
4177 | |
2052 | if (ev_is_active (w)) |
4178 | if (ev_is_active (w)) |
2053 | { |
4179 | { |
2054 | if (w->repeat) |
4180 | if (w->repeat) |
2055 | { |
4181 | { |
2056 | ev_at (w) = mn_now + w->repeat; |
4182 | ev_at (w) = mn_now + w->repeat; |
2057 | ANHE_at_set (timers [ev_active (w)]); |
4183 | ANHE_at_cache (timers [ev_active (w)]); |
2058 | adjustheap (timers, timercnt, ev_active (w)); |
4184 | adjustheap (timers, timercnt, ev_active (w)); |
2059 | } |
4185 | } |
2060 | else |
4186 | else |
2061 | ev_timer_stop (EV_A_ w); |
4187 | ev_timer_stop (EV_A_ w); |
2062 | } |
4188 | } |
2063 | else if (w->repeat) |
4189 | else if (w->repeat) |
2064 | { |
4190 | { |
2065 | ev_at (w) = w->repeat; |
4191 | ev_at (w) = w->repeat; |
2066 | ev_timer_start (EV_A_ w); |
4192 | ev_timer_start (EV_A_ w); |
2067 | } |
4193 | } |
|
|
4194 | |
|
|
4195 | EV_FREQUENT_CHECK; |
|
|
4196 | } |
|
|
4197 | |
|
|
4198 | ev_tstamp |
|
|
4199 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
|
|
4200 | { |
|
|
4201 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
2068 | } |
4202 | } |
2069 | |
4203 | |
2070 | #if EV_PERIODIC_ENABLE |
4204 | #if EV_PERIODIC_ENABLE |
2071 | void noinline |
4205 | ecb_noinline |
|
|
4206 | void |
2072 | ev_periodic_start (EV_P_ ev_periodic *w) |
4207 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2073 | { |
4208 | { |
2074 | if (expect_false (ev_is_active (w))) |
4209 | if (ecb_expect_false (ev_is_active (w))) |
2075 | return; |
4210 | return; |
2076 | |
4211 | |
2077 | if (w->reschedule_cb) |
4212 | if (w->reschedule_cb) |
2078 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4213 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2079 | else if (w->interval) |
4214 | else if (w->interval) |
2080 | { |
4215 | { |
2081 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4216 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2082 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4217 | periodic_recalc (EV_A_ w); |
2083 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2084 | } |
4218 | } |
2085 | else |
4219 | else |
2086 | ev_at (w) = w->offset; |
4220 | ev_at (w) = w->offset; |
2087 | |
4221 | |
|
|
4222 | EV_FREQUENT_CHECK; |
|
|
4223 | |
|
|
4224 | ++periodiccnt; |
2088 | ev_start (EV_A_ (W)w, ++periodiccnt + HEAP0 - 1); |
4225 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2089 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4226 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2090 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4227 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
|
|
4228 | ANHE_at_cache (periodics [ev_active (w)]); |
2091 | upheap (periodics, ev_active (w)); |
4229 | upheap (periodics, ev_active (w)); |
2092 | |
4230 | |
|
|
4231 | EV_FREQUENT_CHECK; |
|
|
4232 | |
2093 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4233 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2094 | } |
4234 | } |
2095 | |
4235 | |
2096 | void noinline |
4236 | ecb_noinline |
|
|
4237 | void |
2097 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4238 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2098 | { |
4239 | { |
2099 | clear_pending (EV_A_ (W)w); |
4240 | clear_pending (EV_A_ (W)w); |
2100 | if (expect_false (!ev_is_active (w))) |
4241 | if (ecb_expect_false (!ev_is_active (w))) |
2101 | return; |
4242 | return; |
|
|
4243 | |
|
|
4244 | EV_FREQUENT_CHECK; |
2102 | |
4245 | |
2103 | { |
4246 | { |
2104 | int active = ev_active (w); |
4247 | int active = ev_active (w); |
2105 | |
4248 | |
2106 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4249 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2107 | |
4250 | |
|
|
4251 | --periodiccnt; |
|
|
4252 | |
2108 | if (expect_true (active < periodiccnt + HEAP0 - 1)) |
4253 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2109 | { |
4254 | { |
2110 | periodics [active] = periodics [periodiccnt + HEAP0 - 1]; |
4255 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2111 | adjustheap (periodics, periodiccnt, active); |
4256 | adjustheap (periodics, periodiccnt, active); |
2112 | } |
4257 | } |
2113 | |
|
|
2114 | --periodiccnt; |
|
|
2115 | } |
4258 | } |
2116 | |
4259 | |
2117 | ev_stop (EV_A_ (W)w); |
4260 | ev_stop (EV_A_ (W)w); |
2118 | } |
|
|
2119 | |
4261 | |
2120 | void noinline |
4262 | EV_FREQUENT_CHECK; |
|
|
4263 | } |
|
|
4264 | |
|
|
4265 | ecb_noinline |
|
|
4266 | void |
2121 | ev_periodic_again (EV_P_ ev_periodic *w) |
4267 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2122 | { |
4268 | { |
2123 | /* TODO: use adjustheap and recalculation */ |
4269 | /* TODO: use adjustheap and recalculation */ |
2124 | ev_periodic_stop (EV_A_ w); |
4270 | ev_periodic_stop (EV_A_ w); |
2125 | ev_periodic_start (EV_A_ w); |
4271 | ev_periodic_start (EV_A_ w); |
2126 | } |
4272 | } |
… | |
… | |
2128 | |
4274 | |
2129 | #ifndef SA_RESTART |
4275 | #ifndef SA_RESTART |
2130 | # define SA_RESTART 0 |
4276 | # define SA_RESTART 0 |
2131 | #endif |
4277 | #endif |
2132 | |
4278 | |
2133 | void noinline |
4279 | #if EV_SIGNAL_ENABLE |
|
|
4280 | |
|
|
4281 | ecb_noinline |
|
|
4282 | void |
2134 | ev_signal_start (EV_P_ ev_signal *w) |
4283 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2135 | { |
4284 | { |
|
|
4285 | if (ecb_expect_false (ev_is_active (w))) |
|
|
4286 | return; |
|
|
4287 | |
|
|
4288 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
4289 | |
2136 | #if EV_MULTIPLICITY |
4290 | #if EV_MULTIPLICITY |
2137 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4291 | assert (("libev: a signal must not be attached to two different loops", |
2138 | #endif |
4292 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2139 | if (expect_false (ev_is_active (w))) |
|
|
2140 | return; |
|
|
2141 | |
4293 | |
2142 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
4294 | signals [w->signum - 1].loop = EV_A; |
|
|
4295 | ECB_MEMORY_FENCE_RELEASE; |
|
|
4296 | #endif |
2143 | |
4297 | |
2144 | evpipe_init (EV_A); |
4298 | EV_FREQUENT_CHECK; |
2145 | |
4299 | |
|
|
4300 | #if EV_USE_SIGNALFD |
|
|
4301 | if (sigfd == -2) |
2146 | { |
4302 | { |
2147 | #ifndef _WIN32 |
4303 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2148 | sigset_t full, prev; |
4304 | if (sigfd < 0 && errno == EINVAL) |
2149 | sigfillset (&full); |
4305 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2150 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2151 | #endif |
|
|
2152 | |
4306 | |
2153 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
4307 | if (sigfd >= 0) |
|
|
4308 | { |
|
|
4309 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2154 | |
4310 | |
2155 | #ifndef _WIN32 |
4311 | sigemptyset (&sigfd_set); |
2156 | sigprocmask (SIG_SETMASK, &prev, 0); |
4312 | |
2157 | #endif |
4313 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
4314 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
4315 | ev_io_start (EV_A_ &sigfd_w); |
|
|
4316 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
4317 | } |
2158 | } |
4318 | } |
|
|
4319 | |
|
|
4320 | if (sigfd >= 0) |
|
|
4321 | { |
|
|
4322 | /* TODO: check .head */ |
|
|
4323 | sigaddset (&sigfd_set, w->signum); |
|
|
4324 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
4325 | |
|
|
4326 | signalfd (sigfd, &sigfd_set, 0); |
|
|
4327 | } |
|
|
4328 | #endif |
2159 | |
4329 | |
2160 | ev_start (EV_A_ (W)w, 1); |
4330 | ev_start (EV_A_ (W)w, 1); |
2161 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
4331 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2162 | |
4332 | |
2163 | if (!((WL)w)->next) |
4333 | if (!((WL)w)->next) |
|
|
4334 | # if EV_USE_SIGNALFD |
|
|
4335 | if (sigfd < 0) /*TODO*/ |
|
|
4336 | # endif |
2164 | { |
4337 | { |
2165 | #if _WIN32 |
4338 | # ifdef _WIN32 |
|
|
4339 | evpipe_init (EV_A); |
|
|
4340 | |
2166 | signal (w->signum, ev_sighandler); |
4341 | signal (w->signum, ev_sighandler); |
2167 | #else |
4342 | # else |
2168 | struct sigaction sa; |
4343 | struct sigaction sa; |
|
|
4344 | |
|
|
4345 | evpipe_init (EV_A); |
|
|
4346 | |
2169 | sa.sa_handler = ev_sighandler; |
4347 | sa.sa_handler = ev_sighandler; |
2170 | sigfillset (&sa.sa_mask); |
4348 | sigfillset (&sa.sa_mask); |
2171 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4349 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2172 | sigaction (w->signum, &sa, 0); |
4350 | sigaction (w->signum, &sa, 0); |
|
|
4351 | |
|
|
4352 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4353 | { |
|
|
4354 | sigemptyset (&sa.sa_mask); |
|
|
4355 | sigaddset (&sa.sa_mask, w->signum); |
|
|
4356 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4357 | } |
2173 | #endif |
4358 | #endif |
2174 | } |
4359 | } |
2175 | } |
|
|
2176 | |
4360 | |
2177 | void noinline |
4361 | EV_FREQUENT_CHECK; |
|
|
4362 | } |
|
|
4363 | |
|
|
4364 | ecb_noinline |
|
|
4365 | void |
2178 | ev_signal_stop (EV_P_ ev_signal *w) |
4366 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2179 | { |
4367 | { |
2180 | clear_pending (EV_A_ (W)w); |
4368 | clear_pending (EV_A_ (W)w); |
2181 | if (expect_false (!ev_is_active (w))) |
4369 | if (ecb_expect_false (!ev_is_active (w))) |
2182 | return; |
4370 | return; |
|
|
4371 | |
|
|
4372 | EV_FREQUENT_CHECK; |
2183 | |
4373 | |
2184 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4374 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2185 | ev_stop (EV_A_ (W)w); |
4375 | ev_stop (EV_A_ (W)w); |
2186 | |
4376 | |
2187 | if (!signals [w->signum - 1].head) |
4377 | if (!signals [w->signum - 1].head) |
2188 | signal (w->signum, SIG_DFL); |
4378 | { |
2189 | } |
|
|
2190 | |
|
|
2191 | void |
|
|
2192 | ev_child_start (EV_P_ ev_child *w) |
|
|
2193 | { |
|
|
2194 | #if EV_MULTIPLICITY |
4379 | #if EV_MULTIPLICITY |
|
|
4380 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
4381 | #endif |
|
|
4382 | #if EV_USE_SIGNALFD |
|
|
4383 | if (sigfd >= 0) |
|
|
4384 | { |
|
|
4385 | sigset_t ss; |
|
|
4386 | |
|
|
4387 | sigemptyset (&ss); |
|
|
4388 | sigaddset (&ss, w->signum); |
|
|
4389 | sigdelset (&sigfd_set, w->signum); |
|
|
4390 | |
|
|
4391 | signalfd (sigfd, &sigfd_set, 0); |
|
|
4392 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
4393 | } |
|
|
4394 | else |
|
|
4395 | #endif |
|
|
4396 | signal (w->signum, SIG_DFL); |
|
|
4397 | } |
|
|
4398 | |
|
|
4399 | EV_FREQUENT_CHECK; |
|
|
4400 | } |
|
|
4401 | |
|
|
4402 | #endif |
|
|
4403 | |
|
|
4404 | #if EV_CHILD_ENABLE |
|
|
4405 | |
|
|
4406 | void |
|
|
4407 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
|
|
4408 | { |
|
|
4409 | #if EV_MULTIPLICITY |
2195 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4410 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2196 | #endif |
4411 | #endif |
2197 | if (expect_false (ev_is_active (w))) |
4412 | if (ecb_expect_false (ev_is_active (w))) |
2198 | return; |
4413 | return; |
2199 | |
4414 | |
|
|
4415 | EV_FREQUENT_CHECK; |
|
|
4416 | |
2200 | ev_start (EV_A_ (W)w, 1); |
4417 | ev_start (EV_A_ (W)w, 1); |
2201 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4418 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2202 | } |
|
|
2203 | |
4419 | |
|
|
4420 | EV_FREQUENT_CHECK; |
|
|
4421 | } |
|
|
4422 | |
2204 | void |
4423 | void |
2205 | ev_child_stop (EV_P_ ev_child *w) |
4424 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2206 | { |
4425 | { |
2207 | clear_pending (EV_A_ (W)w); |
4426 | clear_pending (EV_A_ (W)w); |
2208 | if (expect_false (!ev_is_active (w))) |
4427 | if (ecb_expect_false (!ev_is_active (w))) |
2209 | return; |
4428 | return; |
2210 | |
4429 | |
|
|
4430 | EV_FREQUENT_CHECK; |
|
|
4431 | |
2211 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4432 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2212 | ev_stop (EV_A_ (W)w); |
4433 | ev_stop (EV_A_ (W)w); |
|
|
4434 | |
|
|
4435 | EV_FREQUENT_CHECK; |
2213 | } |
4436 | } |
|
|
4437 | |
|
|
4438 | #endif |
2214 | |
4439 | |
2215 | #if EV_STAT_ENABLE |
4440 | #if EV_STAT_ENABLE |
2216 | |
4441 | |
2217 | # ifdef _WIN32 |
4442 | # ifdef _WIN32 |
2218 | # undef lstat |
4443 | # undef lstat |
2219 | # define lstat(a,b) _stati64 (a,b) |
4444 | # define lstat(a,b) _stati64 (a,b) |
2220 | # endif |
4445 | # endif |
2221 | |
4446 | |
2222 | #define DEF_STAT_INTERVAL 5.0074891 |
4447 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
4448 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2223 | #define MIN_STAT_INTERVAL 0.1074891 |
4449 | #define MIN_STAT_INTERVAL 0.1074891 |
2224 | |
4450 | |
2225 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4451 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2226 | |
4452 | |
2227 | #if EV_USE_INOTIFY |
4453 | #if EV_USE_INOTIFY |
2228 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2229 | |
4454 | |
2230 | static void noinline |
4455 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
4456 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
4457 | |
|
|
4458 | ecb_noinline |
|
|
4459 | static void |
2231 | infy_add (EV_P_ ev_stat *w) |
4460 | infy_add (EV_P_ ev_stat *w) |
2232 | { |
4461 | { |
2233 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
4462 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4463 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4464 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4465 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2234 | |
4466 | |
2235 | if (w->wd < 0) |
4467 | if (w->wd >= 0) |
|
|
4468 | { |
|
|
4469 | struct statfs sfs; |
|
|
4470 | |
|
|
4471 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
4472 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
4473 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
4474 | |
|
|
4475 | if (!fs_2625) |
|
|
4476 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4477 | else if (!statfs (w->path, &sfs) |
|
|
4478 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4479 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4480 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
4481 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4482 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4483 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4484 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
4485 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4486 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
4487 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
4488 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
4489 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
4490 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
4491 | else |
|
|
4492 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2236 | { |
4493 | } |
2237 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
4494 | else |
|
|
4495 | { |
|
|
4496 | /* can't use inotify, continue to stat */ |
|
|
4497 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2238 | |
4498 | |
2239 | /* monitor some parent directory for speedup hints */ |
4499 | /* if path is not there, monitor some parent directory for speedup hints */ |
2240 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
4500 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2241 | /* but an efficiency issue only */ |
4501 | /* but an efficiency issue only */ |
2242 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
4502 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2243 | { |
4503 | { |
2244 | char path [4096]; |
4504 | char path [4096]; |
2245 | strcpy (path, w->path); |
4505 | strcpy (path, w->path); |
… | |
… | |
2249 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
4509 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2250 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
4510 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2251 | |
4511 | |
2252 | char *pend = strrchr (path, '/'); |
4512 | char *pend = strrchr (path, '/'); |
2253 | |
4513 | |
2254 | if (!pend) |
4514 | if (!pend || pend == path) |
2255 | break; /* whoops, no '/', complain to your admin */ |
4515 | break; |
2256 | |
4516 | |
2257 | *pend = 0; |
4517 | *pend = 0; |
2258 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4518 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2259 | } |
4519 | } |
2260 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4520 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2261 | } |
4521 | } |
2262 | } |
4522 | } |
2263 | else |
|
|
2264 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2265 | |
4523 | |
2266 | if (w->wd >= 0) |
4524 | if (w->wd >= 0) |
2267 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4525 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2268 | } |
|
|
2269 | |
4526 | |
2270 | static void noinline |
4527 | /* now re-arm timer, if required */ |
|
|
4528 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
4529 | ev_timer_again (EV_A_ &w->timer); |
|
|
4530 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4531 | } |
|
|
4532 | |
|
|
4533 | ecb_noinline |
|
|
4534 | static void |
2271 | infy_del (EV_P_ ev_stat *w) |
4535 | infy_del (EV_P_ ev_stat *w) |
2272 | { |
4536 | { |
2273 | int slot; |
4537 | int slot; |
2274 | int wd = w->wd; |
4538 | int wd = w->wd; |
2275 | |
4539 | |
2276 | if (wd < 0) |
4540 | if (wd < 0) |
2277 | return; |
4541 | return; |
2278 | |
4542 | |
2279 | w->wd = -2; |
4543 | w->wd = -2; |
2280 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4544 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2281 | wlist_del (&fs_hash [slot].head, (WL)w); |
4545 | wlist_del (&fs_hash [slot].head, (WL)w); |
2282 | |
4546 | |
2283 | /* remove this watcher, if others are watching it, they will rearm */ |
4547 | /* remove this watcher, if others are watching it, they will rearm */ |
2284 | inotify_rm_watch (fs_fd, wd); |
4548 | inotify_rm_watch (fs_fd, wd); |
2285 | } |
4549 | } |
2286 | |
4550 | |
2287 | static void noinline |
4551 | ecb_noinline |
|
|
4552 | static void |
2288 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4553 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2289 | { |
4554 | { |
2290 | if (slot < 0) |
4555 | if (slot < 0) |
2291 | /* overflow, need to check for all hahs slots */ |
4556 | /* overflow, need to check for all hash slots */ |
2292 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4557 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2293 | infy_wd (EV_A_ slot, wd, ev); |
4558 | infy_wd (EV_A_ slot, wd, ev); |
2294 | else |
4559 | else |
2295 | { |
4560 | { |
2296 | WL w_; |
4561 | WL w_; |
2297 | |
4562 | |
2298 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4563 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2299 | { |
4564 | { |
2300 | ev_stat *w = (ev_stat *)w_; |
4565 | ev_stat *w = (ev_stat *)w_; |
2301 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4566 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2302 | |
4567 | |
2303 | if (w->wd == wd || wd == -1) |
4568 | if (w->wd == wd || wd == -1) |
2304 | { |
4569 | { |
2305 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4570 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2306 | { |
4571 | { |
|
|
4572 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2307 | w->wd = -1; |
4573 | w->wd = -1; |
2308 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4574 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2309 | } |
4575 | } |
2310 | |
4576 | |
2311 | stat_timer_cb (EV_A_ &w->timer, 0); |
4577 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2316 | |
4582 | |
2317 | static void |
4583 | static void |
2318 | infy_cb (EV_P_ ev_io *w, int revents) |
4584 | infy_cb (EV_P_ ev_io *w, int revents) |
2319 | { |
4585 | { |
2320 | char buf [EV_INOTIFY_BUFSIZE]; |
4586 | char buf [EV_INOTIFY_BUFSIZE]; |
2321 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2322 | int ofs; |
4587 | int ofs; |
2323 | int len = read (fs_fd, buf, sizeof (buf)); |
4588 | int len = read (fs_fd, buf, sizeof (buf)); |
2324 | |
4589 | |
2325 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4590 | for (ofs = 0; ofs < len; ) |
|
|
4591 | { |
|
|
4592 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2326 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4593 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4594 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4595 | } |
2327 | } |
4596 | } |
2328 | |
4597 | |
2329 | void inline_size |
4598 | inline_size ecb_cold |
|
|
4599 | void |
|
|
4600 | ev_check_2625 (EV_P) |
|
|
4601 | { |
|
|
4602 | /* kernels < 2.6.25 are borked |
|
|
4603 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
4604 | */ |
|
|
4605 | if (ev_linux_version () < 0x020619) |
|
|
4606 | return; |
|
|
4607 | |
|
|
4608 | fs_2625 = 1; |
|
|
4609 | } |
|
|
4610 | |
|
|
4611 | inline_size int |
|
|
4612 | infy_newfd (void) |
|
|
4613 | { |
|
|
4614 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4615 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4616 | if (fd >= 0) |
|
|
4617 | return fd; |
|
|
4618 | #endif |
|
|
4619 | return inotify_init (); |
|
|
4620 | } |
|
|
4621 | |
|
|
4622 | inline_size void |
2330 | infy_init (EV_P) |
4623 | infy_init (EV_P) |
2331 | { |
4624 | { |
2332 | if (fs_fd != -2) |
4625 | if (fs_fd != -2) |
2333 | return; |
4626 | return; |
2334 | |
4627 | |
|
|
4628 | fs_fd = -1; |
|
|
4629 | |
|
|
4630 | ev_check_2625 (EV_A); |
|
|
4631 | |
2335 | fs_fd = inotify_init (); |
4632 | fs_fd = infy_newfd (); |
2336 | |
4633 | |
2337 | if (fs_fd >= 0) |
4634 | if (fs_fd >= 0) |
2338 | { |
4635 | { |
|
|
4636 | fd_intern (fs_fd); |
2339 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4637 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2340 | ev_set_priority (&fs_w, EV_MAXPRI); |
4638 | ev_set_priority (&fs_w, EV_MAXPRI); |
2341 | ev_io_start (EV_A_ &fs_w); |
4639 | ev_io_start (EV_A_ &fs_w); |
|
|
4640 | ev_unref (EV_A); |
2342 | } |
4641 | } |
2343 | } |
4642 | } |
2344 | |
4643 | |
2345 | void inline_size |
4644 | inline_size void |
2346 | infy_fork (EV_P) |
4645 | infy_fork (EV_P) |
2347 | { |
4646 | { |
2348 | int slot; |
4647 | int slot; |
2349 | |
4648 | |
2350 | if (fs_fd < 0) |
4649 | if (fs_fd < 0) |
2351 | return; |
4650 | return; |
2352 | |
4651 | |
|
|
4652 | ev_ref (EV_A); |
|
|
4653 | ev_io_stop (EV_A_ &fs_w); |
2353 | close (fs_fd); |
4654 | close (fs_fd); |
2354 | fs_fd = inotify_init (); |
4655 | fs_fd = infy_newfd (); |
2355 | |
4656 | |
|
|
4657 | if (fs_fd >= 0) |
|
|
4658 | { |
|
|
4659 | fd_intern (fs_fd); |
|
|
4660 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4661 | ev_io_start (EV_A_ &fs_w); |
|
|
4662 | ev_unref (EV_A); |
|
|
4663 | } |
|
|
4664 | |
2356 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4665 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2357 | { |
4666 | { |
2358 | WL w_ = fs_hash [slot].head; |
4667 | WL w_ = fs_hash [slot].head; |
2359 | fs_hash [slot].head = 0; |
4668 | fs_hash [slot].head = 0; |
2360 | |
4669 | |
2361 | while (w_) |
4670 | while (w_) |
… | |
… | |
2366 | w->wd = -1; |
4675 | w->wd = -1; |
2367 | |
4676 | |
2368 | if (fs_fd >= 0) |
4677 | if (fs_fd >= 0) |
2369 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4678 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2370 | else |
4679 | else |
|
|
4680 | { |
|
|
4681 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4682 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2371 | ev_timer_start (EV_A_ &w->timer); |
4683 | ev_timer_again (EV_A_ &w->timer); |
|
|
4684 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4685 | } |
2372 | } |
4686 | } |
2373 | |
|
|
2374 | } |
4687 | } |
2375 | } |
4688 | } |
2376 | |
4689 | |
2377 | #endif |
4690 | #endif |
2378 | |
4691 | |
|
|
4692 | #ifdef _WIN32 |
|
|
4693 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
4694 | #else |
|
|
4695 | # define EV_LSTAT(p,b) lstat (p, b) |
|
|
4696 | #endif |
|
|
4697 | |
2379 | void |
4698 | void |
2380 | ev_stat_stat (EV_P_ ev_stat *w) |
4699 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
2381 | { |
4700 | { |
2382 | if (lstat (w->path, &w->attr) < 0) |
4701 | if (lstat (w->path, &w->attr) < 0) |
2383 | w->attr.st_nlink = 0; |
4702 | w->attr.st_nlink = 0; |
2384 | else if (!w->attr.st_nlink) |
4703 | else if (!w->attr.st_nlink) |
2385 | w->attr.st_nlink = 1; |
4704 | w->attr.st_nlink = 1; |
2386 | } |
4705 | } |
2387 | |
4706 | |
2388 | static void noinline |
4707 | ecb_noinline |
|
|
4708 | static void |
2389 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4709 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2390 | { |
4710 | { |
2391 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4711 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2392 | |
4712 | |
2393 | /* we copy this here each the time so that */ |
4713 | ev_statdata prev = w->attr; |
2394 | /* prev has the old value when the callback gets invoked */ |
|
|
2395 | w->prev = w->attr; |
|
|
2396 | ev_stat_stat (EV_A_ w); |
4714 | ev_stat_stat (EV_A_ w); |
2397 | |
4715 | |
2398 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4716 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2399 | if ( |
4717 | if ( |
2400 | w->prev.st_dev != w->attr.st_dev |
4718 | prev.st_dev != w->attr.st_dev |
2401 | || w->prev.st_ino != w->attr.st_ino |
4719 | || prev.st_ino != w->attr.st_ino |
2402 | || w->prev.st_mode != w->attr.st_mode |
4720 | || prev.st_mode != w->attr.st_mode |
2403 | || w->prev.st_nlink != w->attr.st_nlink |
4721 | || prev.st_nlink != w->attr.st_nlink |
2404 | || w->prev.st_uid != w->attr.st_uid |
4722 | || prev.st_uid != w->attr.st_uid |
2405 | || w->prev.st_gid != w->attr.st_gid |
4723 | || prev.st_gid != w->attr.st_gid |
2406 | || w->prev.st_rdev != w->attr.st_rdev |
4724 | || prev.st_rdev != w->attr.st_rdev |
2407 | || w->prev.st_size != w->attr.st_size |
4725 | || prev.st_size != w->attr.st_size |
2408 | || w->prev.st_atime != w->attr.st_atime |
4726 | || prev.st_atime != w->attr.st_atime |
2409 | || w->prev.st_mtime != w->attr.st_mtime |
4727 | || prev.st_mtime != w->attr.st_mtime |
2410 | || w->prev.st_ctime != w->attr.st_ctime |
4728 | || prev.st_ctime != w->attr.st_ctime |
2411 | ) { |
4729 | ) { |
|
|
4730 | /* we only update w->prev on actual differences */ |
|
|
4731 | /* in case we test more often than invoke the callback, */ |
|
|
4732 | /* to ensure that prev is always different to attr */ |
|
|
4733 | w->prev = prev; |
|
|
4734 | |
2412 | #if EV_USE_INOTIFY |
4735 | #if EV_USE_INOTIFY |
|
|
4736 | if (fs_fd >= 0) |
|
|
4737 | { |
2413 | infy_del (EV_A_ w); |
4738 | infy_del (EV_A_ w); |
2414 | infy_add (EV_A_ w); |
4739 | infy_add (EV_A_ w); |
2415 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
4740 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
4741 | } |
2416 | #endif |
4742 | #endif |
2417 | |
4743 | |
2418 | ev_feed_event (EV_A_ w, EV_STAT); |
4744 | ev_feed_event (EV_A_ w, EV_STAT); |
2419 | } |
4745 | } |
2420 | } |
4746 | } |
2421 | |
4747 | |
2422 | void |
4748 | void |
2423 | ev_stat_start (EV_P_ ev_stat *w) |
4749 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
2424 | { |
4750 | { |
2425 | if (expect_false (ev_is_active (w))) |
4751 | if (ecb_expect_false (ev_is_active (w))) |
2426 | return; |
4752 | return; |
2427 | |
4753 | |
2428 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2429 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2430 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2431 | |
|
|
2432 | ev_stat_stat (EV_A_ w); |
4754 | ev_stat_stat (EV_A_ w); |
2433 | |
4755 | |
|
|
4756 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2434 | if (w->interval < MIN_STAT_INTERVAL) |
4757 | w->interval = MIN_STAT_INTERVAL; |
2435 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2436 | |
4758 | |
2437 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
4759 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2438 | ev_set_priority (&w->timer, ev_priority (w)); |
4760 | ev_set_priority (&w->timer, ev_priority (w)); |
2439 | |
4761 | |
2440 | #if EV_USE_INOTIFY |
4762 | #if EV_USE_INOTIFY |
2441 | infy_init (EV_A); |
4763 | infy_init (EV_A); |
2442 | |
4764 | |
2443 | if (fs_fd >= 0) |
4765 | if (fs_fd >= 0) |
2444 | infy_add (EV_A_ w); |
4766 | infy_add (EV_A_ w); |
2445 | else |
4767 | else |
2446 | #endif |
4768 | #endif |
|
|
4769 | { |
2447 | ev_timer_start (EV_A_ &w->timer); |
4770 | ev_timer_again (EV_A_ &w->timer); |
|
|
4771 | ev_unref (EV_A); |
|
|
4772 | } |
2448 | |
4773 | |
2449 | ev_start (EV_A_ (W)w, 1); |
4774 | ev_start (EV_A_ (W)w, 1); |
2450 | } |
|
|
2451 | |
4775 | |
|
|
4776 | EV_FREQUENT_CHECK; |
|
|
4777 | } |
|
|
4778 | |
2452 | void |
4779 | void |
2453 | ev_stat_stop (EV_P_ ev_stat *w) |
4780 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
2454 | { |
4781 | { |
2455 | clear_pending (EV_A_ (W)w); |
4782 | clear_pending (EV_A_ (W)w); |
2456 | if (expect_false (!ev_is_active (w))) |
4783 | if (ecb_expect_false (!ev_is_active (w))) |
2457 | return; |
4784 | return; |
|
|
4785 | |
|
|
4786 | EV_FREQUENT_CHECK; |
2458 | |
4787 | |
2459 | #if EV_USE_INOTIFY |
4788 | #if EV_USE_INOTIFY |
2460 | infy_del (EV_A_ w); |
4789 | infy_del (EV_A_ w); |
2461 | #endif |
4790 | #endif |
|
|
4791 | |
|
|
4792 | if (ev_is_active (&w->timer)) |
|
|
4793 | { |
|
|
4794 | ev_ref (EV_A); |
2462 | ev_timer_stop (EV_A_ &w->timer); |
4795 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4796 | } |
2463 | |
4797 | |
2464 | ev_stop (EV_A_ (W)w); |
4798 | ev_stop (EV_A_ (W)w); |
|
|
4799 | |
|
|
4800 | EV_FREQUENT_CHECK; |
2465 | } |
4801 | } |
2466 | #endif |
4802 | #endif |
2467 | |
4803 | |
2468 | #if EV_IDLE_ENABLE |
4804 | #if EV_IDLE_ENABLE |
2469 | void |
4805 | void |
2470 | ev_idle_start (EV_P_ ev_idle *w) |
4806 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
2471 | { |
4807 | { |
2472 | if (expect_false (ev_is_active (w))) |
4808 | if (ecb_expect_false (ev_is_active (w))) |
2473 | return; |
4809 | return; |
2474 | |
4810 | |
2475 | pri_adjust (EV_A_ (W)w); |
4811 | pri_adjust (EV_A_ (W)w); |
|
|
4812 | |
|
|
4813 | EV_FREQUENT_CHECK; |
2476 | |
4814 | |
2477 | { |
4815 | { |
2478 | int active = ++idlecnt [ABSPRI (w)]; |
4816 | int active = ++idlecnt [ABSPRI (w)]; |
2479 | |
4817 | |
2480 | ++idleall; |
4818 | ++idleall; |
2481 | ev_start (EV_A_ (W)w, active); |
4819 | ev_start (EV_A_ (W)w, active); |
2482 | |
4820 | |
2483 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4821 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
2484 | idles [ABSPRI (w)][active - 1] = w; |
4822 | idles [ABSPRI (w)][active - 1] = w; |
2485 | } |
4823 | } |
2486 | } |
|
|
2487 | |
4824 | |
|
|
4825 | EV_FREQUENT_CHECK; |
|
|
4826 | } |
|
|
4827 | |
2488 | void |
4828 | void |
2489 | ev_idle_stop (EV_P_ ev_idle *w) |
4829 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
2490 | { |
4830 | { |
2491 | clear_pending (EV_A_ (W)w); |
4831 | clear_pending (EV_A_ (W)w); |
2492 | if (expect_false (!ev_is_active (w))) |
4832 | if (ecb_expect_false (!ev_is_active (w))) |
2493 | return; |
4833 | return; |
|
|
4834 | |
|
|
4835 | EV_FREQUENT_CHECK; |
2494 | |
4836 | |
2495 | { |
4837 | { |
2496 | int active = ev_active (w); |
4838 | int active = ev_active (w); |
2497 | |
4839 | |
2498 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
4840 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2499 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
4841 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2500 | |
4842 | |
2501 | ev_stop (EV_A_ (W)w); |
4843 | ev_stop (EV_A_ (W)w); |
2502 | --idleall; |
4844 | --idleall; |
2503 | } |
4845 | } |
2504 | } |
|
|
2505 | #endif |
|
|
2506 | |
4846 | |
|
|
4847 | EV_FREQUENT_CHECK; |
|
|
4848 | } |
|
|
4849 | #endif |
|
|
4850 | |
|
|
4851 | #if EV_PREPARE_ENABLE |
2507 | void |
4852 | void |
2508 | ev_prepare_start (EV_P_ ev_prepare *w) |
4853 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
2509 | { |
4854 | { |
2510 | if (expect_false (ev_is_active (w))) |
4855 | if (ecb_expect_false (ev_is_active (w))) |
2511 | return; |
4856 | return; |
2512 | |
4857 | |
|
|
4858 | EV_FREQUENT_CHECK; |
|
|
4859 | |
2513 | ev_start (EV_A_ (W)w, ++preparecnt); |
4860 | ev_start (EV_A_ (W)w, ++preparecnt); |
2514 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4861 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
2515 | prepares [preparecnt - 1] = w; |
4862 | prepares [preparecnt - 1] = w; |
2516 | } |
|
|
2517 | |
4863 | |
|
|
4864 | EV_FREQUENT_CHECK; |
|
|
4865 | } |
|
|
4866 | |
2518 | void |
4867 | void |
2519 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4868 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
2520 | { |
4869 | { |
2521 | clear_pending (EV_A_ (W)w); |
4870 | clear_pending (EV_A_ (W)w); |
2522 | if (expect_false (!ev_is_active (w))) |
4871 | if (ecb_expect_false (!ev_is_active (w))) |
2523 | return; |
4872 | return; |
|
|
4873 | |
|
|
4874 | EV_FREQUENT_CHECK; |
2524 | |
4875 | |
2525 | { |
4876 | { |
2526 | int active = ev_active (w); |
4877 | int active = ev_active (w); |
2527 | |
4878 | |
2528 | prepares [active - 1] = prepares [--preparecnt]; |
4879 | prepares [active - 1] = prepares [--preparecnt]; |
2529 | ev_active (prepares [active - 1]) = active; |
4880 | ev_active (prepares [active - 1]) = active; |
2530 | } |
4881 | } |
2531 | |
4882 | |
2532 | ev_stop (EV_A_ (W)w); |
4883 | ev_stop (EV_A_ (W)w); |
2533 | } |
|
|
2534 | |
4884 | |
|
|
4885 | EV_FREQUENT_CHECK; |
|
|
4886 | } |
|
|
4887 | #endif |
|
|
4888 | |
|
|
4889 | #if EV_CHECK_ENABLE |
2535 | void |
4890 | void |
2536 | ev_check_start (EV_P_ ev_check *w) |
4891 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
2537 | { |
4892 | { |
2538 | if (expect_false (ev_is_active (w))) |
4893 | if (ecb_expect_false (ev_is_active (w))) |
2539 | return; |
4894 | return; |
2540 | |
4895 | |
|
|
4896 | EV_FREQUENT_CHECK; |
|
|
4897 | |
2541 | ev_start (EV_A_ (W)w, ++checkcnt); |
4898 | ev_start (EV_A_ (W)w, ++checkcnt); |
2542 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4899 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
2543 | checks [checkcnt - 1] = w; |
4900 | checks [checkcnt - 1] = w; |
2544 | } |
|
|
2545 | |
4901 | |
|
|
4902 | EV_FREQUENT_CHECK; |
|
|
4903 | } |
|
|
4904 | |
2546 | void |
4905 | void |
2547 | ev_check_stop (EV_P_ ev_check *w) |
4906 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
2548 | { |
4907 | { |
2549 | clear_pending (EV_A_ (W)w); |
4908 | clear_pending (EV_A_ (W)w); |
2550 | if (expect_false (!ev_is_active (w))) |
4909 | if (ecb_expect_false (!ev_is_active (w))) |
2551 | return; |
4910 | return; |
|
|
4911 | |
|
|
4912 | EV_FREQUENT_CHECK; |
2552 | |
4913 | |
2553 | { |
4914 | { |
2554 | int active = ev_active (w); |
4915 | int active = ev_active (w); |
2555 | |
4916 | |
2556 | checks [active - 1] = checks [--checkcnt]; |
4917 | checks [active - 1] = checks [--checkcnt]; |
2557 | ev_active (checks [active - 1]) = active; |
4918 | ev_active (checks [active - 1]) = active; |
2558 | } |
4919 | } |
2559 | |
4920 | |
2560 | ev_stop (EV_A_ (W)w); |
4921 | ev_stop (EV_A_ (W)w); |
|
|
4922 | |
|
|
4923 | EV_FREQUENT_CHECK; |
2561 | } |
4924 | } |
|
|
4925 | #endif |
2562 | |
4926 | |
2563 | #if EV_EMBED_ENABLE |
4927 | #if EV_EMBED_ENABLE |
2564 | void noinline |
4928 | ecb_noinline |
|
|
4929 | void |
2565 | ev_embed_sweep (EV_P_ ev_embed *w) |
4930 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
2566 | { |
4931 | { |
2567 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4932 | ev_run (w->other, EVRUN_NOWAIT); |
2568 | } |
4933 | } |
2569 | |
4934 | |
2570 | static void |
4935 | static void |
2571 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4936 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2572 | { |
4937 | { |
2573 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4938 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2574 | |
4939 | |
2575 | if (ev_cb (w)) |
4940 | if (ev_cb (w)) |
2576 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4941 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2577 | else |
4942 | else |
2578 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4943 | ev_run (w->other, EVRUN_NOWAIT); |
2579 | } |
4944 | } |
2580 | |
4945 | |
2581 | static void |
4946 | static void |
2582 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4947 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2583 | { |
4948 | { |
2584 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4949 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2585 | |
4950 | |
2586 | { |
4951 | { |
2587 | struct ev_loop *loop = w->other; |
4952 | EV_P = w->other; |
2588 | |
4953 | |
2589 | while (fdchangecnt) |
4954 | while (fdchangecnt) |
2590 | { |
4955 | { |
2591 | fd_reify (EV_A); |
4956 | fd_reify (EV_A); |
2592 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4957 | ev_run (EV_A_ EVRUN_NOWAIT); |
2593 | } |
4958 | } |
2594 | } |
4959 | } |
|
|
4960 | } |
|
|
4961 | |
|
|
4962 | static void |
|
|
4963 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
4964 | { |
|
|
4965 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
4966 | |
|
|
4967 | ev_embed_stop (EV_A_ w); |
|
|
4968 | |
|
|
4969 | { |
|
|
4970 | EV_P = w->other; |
|
|
4971 | |
|
|
4972 | ev_loop_fork (EV_A); |
|
|
4973 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4974 | } |
|
|
4975 | |
|
|
4976 | ev_embed_start (EV_A_ w); |
2595 | } |
4977 | } |
2596 | |
4978 | |
2597 | #if 0 |
4979 | #if 0 |
2598 | static void |
4980 | static void |
2599 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4981 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2601 | ev_idle_stop (EV_A_ idle); |
4983 | ev_idle_stop (EV_A_ idle); |
2602 | } |
4984 | } |
2603 | #endif |
4985 | #endif |
2604 | |
4986 | |
2605 | void |
4987 | void |
2606 | ev_embed_start (EV_P_ ev_embed *w) |
4988 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
2607 | { |
4989 | { |
2608 | if (expect_false (ev_is_active (w))) |
4990 | if (ecb_expect_false (ev_is_active (w))) |
2609 | return; |
4991 | return; |
2610 | |
4992 | |
2611 | { |
4993 | { |
2612 | struct ev_loop *loop = w->other; |
4994 | EV_P = w->other; |
2613 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4995 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2614 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4996 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2615 | } |
4997 | } |
|
|
4998 | |
|
|
4999 | EV_FREQUENT_CHECK; |
2616 | |
5000 | |
2617 | ev_set_priority (&w->io, ev_priority (w)); |
5001 | ev_set_priority (&w->io, ev_priority (w)); |
2618 | ev_io_start (EV_A_ &w->io); |
5002 | ev_io_start (EV_A_ &w->io); |
2619 | |
5003 | |
2620 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5004 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2621 | ev_set_priority (&w->prepare, EV_MINPRI); |
5005 | ev_set_priority (&w->prepare, EV_MINPRI); |
2622 | ev_prepare_start (EV_A_ &w->prepare); |
5006 | ev_prepare_start (EV_A_ &w->prepare); |
2623 | |
5007 | |
|
|
5008 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
5009 | ev_fork_start (EV_A_ &w->fork); |
|
|
5010 | |
2624 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5011 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2625 | |
5012 | |
2626 | ev_start (EV_A_ (W)w, 1); |
5013 | ev_start (EV_A_ (W)w, 1); |
2627 | } |
|
|
2628 | |
5014 | |
|
|
5015 | EV_FREQUENT_CHECK; |
|
|
5016 | } |
|
|
5017 | |
2629 | void |
5018 | void |
2630 | ev_embed_stop (EV_P_ ev_embed *w) |
5019 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
2631 | { |
5020 | { |
2632 | clear_pending (EV_A_ (W)w); |
5021 | clear_pending (EV_A_ (W)w); |
2633 | if (expect_false (!ev_is_active (w))) |
5022 | if (ecb_expect_false (!ev_is_active (w))) |
2634 | return; |
5023 | return; |
2635 | |
5024 | |
|
|
5025 | EV_FREQUENT_CHECK; |
|
|
5026 | |
2636 | ev_io_stop (EV_A_ &w->io); |
5027 | ev_io_stop (EV_A_ &w->io); |
2637 | ev_prepare_stop (EV_A_ &w->prepare); |
5028 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5029 | ev_fork_stop (EV_A_ &w->fork); |
2638 | |
5030 | |
2639 | ev_stop (EV_A_ (W)w); |
5031 | ev_stop (EV_A_ (W)w); |
|
|
5032 | |
|
|
5033 | EV_FREQUENT_CHECK; |
2640 | } |
5034 | } |
2641 | #endif |
5035 | #endif |
2642 | |
5036 | |
2643 | #if EV_FORK_ENABLE |
5037 | #if EV_FORK_ENABLE |
2644 | void |
5038 | void |
2645 | ev_fork_start (EV_P_ ev_fork *w) |
5039 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
2646 | { |
5040 | { |
2647 | if (expect_false (ev_is_active (w))) |
5041 | if (ecb_expect_false (ev_is_active (w))) |
2648 | return; |
5042 | return; |
2649 | |
5043 | |
|
|
5044 | EV_FREQUENT_CHECK; |
|
|
5045 | |
2650 | ev_start (EV_A_ (W)w, ++forkcnt); |
5046 | ev_start (EV_A_ (W)w, ++forkcnt); |
2651 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5047 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
2652 | forks [forkcnt - 1] = w; |
5048 | forks [forkcnt - 1] = w; |
2653 | } |
|
|
2654 | |
5049 | |
|
|
5050 | EV_FREQUENT_CHECK; |
|
|
5051 | } |
|
|
5052 | |
2655 | void |
5053 | void |
2656 | ev_fork_stop (EV_P_ ev_fork *w) |
5054 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
2657 | { |
5055 | { |
2658 | clear_pending (EV_A_ (W)w); |
5056 | clear_pending (EV_A_ (W)w); |
2659 | if (expect_false (!ev_is_active (w))) |
5057 | if (ecb_expect_false (!ev_is_active (w))) |
2660 | return; |
5058 | return; |
|
|
5059 | |
|
|
5060 | EV_FREQUENT_CHECK; |
2661 | |
5061 | |
2662 | { |
5062 | { |
2663 | int active = ev_active (w); |
5063 | int active = ev_active (w); |
2664 | |
5064 | |
2665 | forks [active - 1] = forks [--forkcnt]; |
5065 | forks [active - 1] = forks [--forkcnt]; |
2666 | ev_active (forks [active - 1]) = active; |
5066 | ev_active (forks [active - 1]) = active; |
2667 | } |
5067 | } |
2668 | |
5068 | |
2669 | ev_stop (EV_A_ (W)w); |
5069 | ev_stop (EV_A_ (W)w); |
|
|
5070 | |
|
|
5071 | EV_FREQUENT_CHECK; |
|
|
5072 | } |
|
|
5073 | #endif |
|
|
5074 | |
|
|
5075 | #if EV_CLEANUP_ENABLE |
|
|
5076 | void |
|
|
5077 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5078 | { |
|
|
5079 | if (ecb_expect_false (ev_is_active (w))) |
|
|
5080 | return; |
|
|
5081 | |
|
|
5082 | EV_FREQUENT_CHECK; |
|
|
5083 | |
|
|
5084 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
5085 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
|
|
5086 | cleanups [cleanupcnt - 1] = w; |
|
|
5087 | |
|
|
5088 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
5089 | ev_unref (EV_A); |
|
|
5090 | EV_FREQUENT_CHECK; |
|
|
5091 | } |
|
|
5092 | |
|
|
5093 | void |
|
|
5094 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5095 | { |
|
|
5096 | clear_pending (EV_A_ (W)w); |
|
|
5097 | if (ecb_expect_false (!ev_is_active (w))) |
|
|
5098 | return; |
|
|
5099 | |
|
|
5100 | EV_FREQUENT_CHECK; |
|
|
5101 | ev_ref (EV_A); |
|
|
5102 | |
|
|
5103 | { |
|
|
5104 | int active = ev_active (w); |
|
|
5105 | |
|
|
5106 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
5107 | ev_active (cleanups [active - 1]) = active; |
|
|
5108 | } |
|
|
5109 | |
|
|
5110 | ev_stop (EV_A_ (W)w); |
|
|
5111 | |
|
|
5112 | EV_FREQUENT_CHECK; |
2670 | } |
5113 | } |
2671 | #endif |
5114 | #endif |
2672 | |
5115 | |
2673 | #if EV_ASYNC_ENABLE |
5116 | #if EV_ASYNC_ENABLE |
2674 | void |
5117 | void |
2675 | ev_async_start (EV_P_ ev_async *w) |
5118 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
2676 | { |
5119 | { |
2677 | if (expect_false (ev_is_active (w))) |
5120 | if (ecb_expect_false (ev_is_active (w))) |
2678 | return; |
5121 | return; |
2679 | |
5122 | |
|
|
5123 | w->sent = 0; |
|
|
5124 | |
2680 | evpipe_init (EV_A); |
5125 | evpipe_init (EV_A); |
2681 | |
5126 | |
|
|
5127 | EV_FREQUENT_CHECK; |
|
|
5128 | |
2682 | ev_start (EV_A_ (W)w, ++asynccnt); |
5129 | ev_start (EV_A_ (W)w, ++asynccnt); |
2683 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5130 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
2684 | asyncs [asynccnt - 1] = w; |
5131 | asyncs [asynccnt - 1] = w; |
2685 | } |
|
|
2686 | |
5132 | |
|
|
5133 | EV_FREQUENT_CHECK; |
|
|
5134 | } |
|
|
5135 | |
2687 | void |
5136 | void |
2688 | ev_async_stop (EV_P_ ev_async *w) |
5137 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
2689 | { |
5138 | { |
2690 | clear_pending (EV_A_ (W)w); |
5139 | clear_pending (EV_A_ (W)w); |
2691 | if (expect_false (!ev_is_active (w))) |
5140 | if (ecb_expect_false (!ev_is_active (w))) |
2692 | return; |
5141 | return; |
|
|
5142 | |
|
|
5143 | EV_FREQUENT_CHECK; |
2693 | |
5144 | |
2694 | { |
5145 | { |
2695 | int active = ev_active (w); |
5146 | int active = ev_active (w); |
2696 | |
5147 | |
2697 | asyncs [active - 1] = asyncs [--asynccnt]; |
5148 | asyncs [active - 1] = asyncs [--asynccnt]; |
2698 | ev_active (asyncs [active - 1]) = active; |
5149 | ev_active (asyncs [active - 1]) = active; |
2699 | } |
5150 | } |
2700 | |
5151 | |
2701 | ev_stop (EV_A_ (W)w); |
5152 | ev_stop (EV_A_ (W)w); |
2702 | } |
|
|
2703 | |
5153 | |
|
|
5154 | EV_FREQUENT_CHECK; |
|
|
5155 | } |
|
|
5156 | |
2704 | void |
5157 | void |
2705 | ev_async_send (EV_P_ ev_async *w) |
5158 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
2706 | { |
5159 | { |
2707 | w->sent = 1; |
5160 | w->sent = 1; |
2708 | evpipe_write (EV_A_ &gotasync); |
5161 | evpipe_write (EV_A_ &async_pending); |
2709 | } |
5162 | } |
2710 | #endif |
5163 | #endif |
2711 | |
5164 | |
2712 | /*****************************************************************************/ |
5165 | /*****************************************************************************/ |
2713 | |
5166 | |
… | |
… | |
2723 | once_cb (EV_P_ struct ev_once *once, int revents) |
5176 | once_cb (EV_P_ struct ev_once *once, int revents) |
2724 | { |
5177 | { |
2725 | void (*cb)(int revents, void *arg) = once->cb; |
5178 | void (*cb)(int revents, void *arg) = once->cb; |
2726 | void *arg = once->arg; |
5179 | void *arg = once->arg; |
2727 | |
5180 | |
2728 | ev_io_stop (EV_A_ &once->io); |
5181 | ev_io_stop (EV_A_ &once->io); |
2729 | ev_timer_stop (EV_A_ &once->to); |
5182 | ev_timer_stop (EV_A_ &once->to); |
2730 | ev_free (once); |
5183 | ev_free (once); |
2731 | |
5184 | |
2732 | cb (revents, arg); |
5185 | cb (revents, arg); |
2733 | } |
5186 | } |
2734 | |
5187 | |
2735 | static void |
5188 | static void |
2736 | once_cb_io (EV_P_ ev_io *w, int revents) |
5189 | once_cb_io (EV_P_ ev_io *w, int revents) |
2737 | { |
5190 | { |
2738 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
5191 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
5192 | |
|
|
5193 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2739 | } |
5194 | } |
2740 | |
5195 | |
2741 | static void |
5196 | static void |
2742 | once_cb_to (EV_P_ ev_timer *w, int revents) |
5197 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2743 | { |
5198 | { |
2744 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
5199 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
2745 | } |
|
|
2746 | |
5200 | |
|
|
5201 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
|
|
5202 | } |
|
|
5203 | |
2747 | void |
5204 | void |
2748 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5205 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
2749 | { |
5206 | { |
2750 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5207 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2751 | |
|
|
2752 | if (expect_false (!once)) |
|
|
2753 | { |
|
|
2754 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
|
|
2755 | return; |
|
|
2756 | } |
|
|
2757 | |
5208 | |
2758 | once->cb = cb; |
5209 | once->cb = cb; |
2759 | once->arg = arg; |
5210 | once->arg = arg; |
2760 | |
5211 | |
2761 | ev_init (&once->io, once_cb_io); |
5212 | ev_init (&once->io, once_cb_io); |
… | |
… | |
2771 | ev_timer_set (&once->to, timeout, 0.); |
5222 | ev_timer_set (&once->to, timeout, 0.); |
2772 | ev_timer_start (EV_A_ &once->to); |
5223 | ev_timer_start (EV_A_ &once->to); |
2773 | } |
5224 | } |
2774 | } |
5225 | } |
2775 | |
5226 | |
|
|
5227 | /*****************************************************************************/ |
|
|
5228 | |
|
|
5229 | #if EV_WALK_ENABLE |
|
|
5230 | ecb_cold |
|
|
5231 | void |
|
|
5232 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
|
|
5233 | { |
|
|
5234 | int i, j; |
|
|
5235 | ev_watcher_list *wl, *wn; |
|
|
5236 | |
|
|
5237 | if (types & (EV_IO | EV_EMBED)) |
|
|
5238 | for (i = 0; i < anfdmax; ++i) |
|
|
5239 | for (wl = anfds [i].head; wl; ) |
|
|
5240 | { |
|
|
5241 | wn = wl->next; |
|
|
5242 | |
|
|
5243 | #if EV_EMBED_ENABLE |
|
|
5244 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
5245 | { |
|
|
5246 | if (types & EV_EMBED) |
|
|
5247 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
5248 | } |
|
|
5249 | else |
|
|
5250 | #endif |
|
|
5251 | #if EV_USE_INOTIFY |
|
|
5252 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
5253 | ; |
|
|
5254 | else |
|
|
5255 | #endif |
|
|
5256 | if ((ev_io *)wl != &pipe_w) |
|
|
5257 | if (types & EV_IO) |
|
|
5258 | cb (EV_A_ EV_IO, wl); |
|
|
5259 | |
|
|
5260 | wl = wn; |
|
|
5261 | } |
|
|
5262 | |
|
|
5263 | if (types & (EV_TIMER | EV_STAT)) |
|
|
5264 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
5265 | #if EV_STAT_ENABLE |
|
|
5266 | /*TODO: timer is not always active*/ |
|
|
5267 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
5268 | { |
|
|
5269 | if (types & EV_STAT) |
|
|
5270 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
5271 | } |
|
|
5272 | else |
|
|
5273 | #endif |
|
|
5274 | if (types & EV_TIMER) |
|
|
5275 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
5276 | |
|
|
5277 | #if EV_PERIODIC_ENABLE |
|
|
5278 | if (types & EV_PERIODIC) |
|
|
5279 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
5280 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
5281 | #endif |
|
|
5282 | |
|
|
5283 | #if EV_IDLE_ENABLE |
|
|
5284 | if (types & EV_IDLE) |
|
|
5285 | for (j = NUMPRI; j--; ) |
|
|
5286 | for (i = idlecnt [j]; i--; ) |
|
|
5287 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
5288 | #endif |
|
|
5289 | |
|
|
5290 | #if EV_FORK_ENABLE |
|
|
5291 | if (types & EV_FORK) |
|
|
5292 | for (i = forkcnt; i--; ) |
|
|
5293 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
5294 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
5295 | #endif |
|
|
5296 | |
|
|
5297 | #if EV_ASYNC_ENABLE |
|
|
5298 | if (types & EV_ASYNC) |
|
|
5299 | for (i = asynccnt; i--; ) |
|
|
5300 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
5301 | #endif |
|
|
5302 | |
|
|
5303 | #if EV_PREPARE_ENABLE |
|
|
5304 | if (types & EV_PREPARE) |
|
|
5305 | for (i = preparecnt; i--; ) |
|
|
5306 | # if EV_EMBED_ENABLE |
|
|
5307 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
5308 | # endif |
|
|
5309 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
5310 | #endif |
|
|
5311 | |
|
|
5312 | #if EV_CHECK_ENABLE |
|
|
5313 | if (types & EV_CHECK) |
|
|
5314 | for (i = checkcnt; i--; ) |
|
|
5315 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
5316 | #endif |
|
|
5317 | |
|
|
5318 | #if EV_SIGNAL_ENABLE |
|
|
5319 | if (types & EV_SIGNAL) |
|
|
5320 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
5321 | for (wl = signals [i].head; wl; ) |
|
|
5322 | { |
|
|
5323 | wn = wl->next; |
|
|
5324 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
5325 | wl = wn; |
|
|
5326 | } |
|
|
5327 | #endif |
|
|
5328 | |
|
|
5329 | #if EV_CHILD_ENABLE |
|
|
5330 | if (types & EV_CHILD) |
|
|
5331 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
5332 | for (wl = childs [i]; wl; ) |
|
|
5333 | { |
|
|
5334 | wn = wl->next; |
|
|
5335 | cb (EV_A_ EV_CHILD, wl); |
|
|
5336 | wl = wn; |
|
|
5337 | } |
|
|
5338 | #endif |
|
|
5339 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
5340 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
5341 | } |
|
|
5342 | #endif |
|
|
5343 | |
2776 | #if EV_MULTIPLICITY |
5344 | #if EV_MULTIPLICITY |
2777 | #include "ev_wrap.h" |
5345 | #include "ev_wrap.h" |
2778 | #endif |
5346 | #endif |
2779 | |
5347 | |
2780 | #ifdef __cplusplus |
|
|
2781 | } |
|
|
2782 | #endif |
|
|
2783 | |
|
|