1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 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" |
|
|
46 | # endif |
|
|
47 | |
|
|
48 | # if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
50 | # endif |
52 | # endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
|
|
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
|
|
65 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
66 | # endif |
63 | |
67 | |
64 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
… | |
… | |
75 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
76 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
77 | # endif |
81 | # endif |
78 | # endif |
82 | # endif |
79 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
80 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
81 | # if HAVE_NANOSLEEP |
|
|
82 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
83 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
84 | # 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 |
85 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
86 | # endif |
100 | # endif |
87 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
88 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
90 | # define EV_USE_SELECT 1 |
|
|
91 | # else |
|
|
92 | # define EV_USE_SELECT 0 |
|
|
93 | # endif |
105 | # endif |
94 | # endif |
|
|
95 | |
|
|
96 | # ifndef EV_USE_POLL |
|
|
97 | # if HAVE_POLL && HAVE_POLL_H |
|
|
98 | # define EV_USE_POLL 1 |
|
|
99 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
100 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
101 | # endif |
|
|
102 | # endif |
109 | # endif |
103 | |
110 | |
104 | # ifndef EV_USE_EPOLL |
|
|
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
106 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
107 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
108 | # define EV_USE_EPOLL 0 |
|
|
109 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
110 | # endif |
118 | # endif |
111 | |
119 | |
112 | # ifndef EV_USE_KQUEUE |
120 | # if HAVE_LINUX_AIO_ABI_H |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
121 | # ifndef EV_USE_LINUXAIO |
114 | # define EV_USE_KQUEUE 1 |
122 | # define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */ |
115 | # else |
|
|
116 | # define EV_USE_KQUEUE 0 |
|
|
117 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_LINUXAIO |
|
|
126 | # define EV_USE_LINUXAIO 0 |
118 | # endif |
127 | # endif |
119 | |
128 | |
|
|
129 | # if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T |
120 | # ifndef EV_USE_PORT |
130 | # ifndef EV_USE_IOURING |
121 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
131 | # define EV_USE_IOURING EV_FEATURE_BACKENDS |
122 | # define EV_USE_PORT 1 |
|
|
123 | # else |
|
|
124 | # define EV_USE_PORT 0 |
|
|
125 | # endif |
132 | # endif |
126 | # endif |
|
|
127 | |
|
|
128 | # ifndef EV_USE_INOTIFY |
|
|
129 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
130 | # define EV_USE_INOTIFY 1 |
|
|
131 | # else |
133 | # else |
|
|
134 | # undef EV_USE_IOURING |
132 | # define EV_USE_INOTIFY 0 |
135 | # define EV_USE_IOURING 0 |
133 | # endif |
|
|
134 | # endif |
|
|
135 | |
|
|
136 | # ifndef EV_USE_EVENTFD |
|
|
137 | # if HAVE_EVENTFD |
|
|
138 | # define EV_USE_EVENTFD 1 |
|
|
139 | # else |
|
|
140 | # define EV_USE_EVENTFD 0 |
|
|
141 | # endif |
|
|
142 | # endif |
136 | # endif |
143 | |
137 | |
|
|
138 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
|
|
139 | # ifndef EV_USE_KQUEUE |
|
|
140 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
|
|
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_KQUEUE |
|
|
144 | # define EV_USE_KQUEUE 0 |
144 | #endif |
145 | # endif |
|
|
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 |
|
|
154 | # endif |
145 | |
155 | |
146 | #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 | # if HAVE_SYS_TIMERFD_H |
|
|
184 | # ifndef EV_USE_TIMERFD |
|
|
185 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
186 | # endif |
|
|
187 | # else |
|
|
188 | # undef EV_USE_TIMERFD |
|
|
189 | # define EV_USE_TIMERFD 0 |
|
|
190 | # endif |
|
|
191 | |
|
|
192 | #endif |
|
|
193 | |
|
|
194 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
195 | * a limit of 1024 into their select. Where people have brains, |
|
|
196 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
197 | * ordered to have a vacuum, or they do anything for money. |
|
|
198 | * This might help. Or not. |
|
|
199 | * Note that this must be defined early, as other include files |
|
|
200 | * will rely on this define as well. |
|
|
201 | */ |
|
|
202 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
203 | |
147 | #include <stdlib.h> |
204 | #include <stdlib.h> |
|
|
205 | #include <string.h> |
148 | #include <fcntl.h> |
206 | #include <fcntl.h> |
149 | #include <stddef.h> |
207 | #include <stddef.h> |
150 | |
208 | |
151 | #include <stdio.h> |
209 | #include <stdio.h> |
152 | |
210 | |
153 | #include <assert.h> |
211 | #include <assert.h> |
154 | #include <errno.h> |
212 | #include <errno.h> |
155 | #include <sys/types.h> |
213 | #include <sys/types.h> |
156 | #include <time.h> |
214 | #include <time.h> |
|
|
215 | #include <limits.h> |
157 | |
216 | |
158 | #include <signal.h> |
217 | #include <signal.h> |
159 | |
218 | |
160 | #ifdef EV_H |
219 | #ifdef EV_H |
161 | # include EV_H |
220 | # include EV_H |
162 | #else |
221 | #else |
163 | # include "ev.h" |
222 | # include "ev.h" |
|
|
223 | #endif |
|
|
224 | |
|
|
225 | #if EV_NO_THREADS |
|
|
226 | # undef EV_NO_SMP |
|
|
227 | # define EV_NO_SMP 1 |
|
|
228 | # undef ECB_NO_THREADS |
|
|
229 | # define ECB_NO_THREADS 1 |
|
|
230 | #endif |
|
|
231 | #if EV_NO_SMP |
|
|
232 | # undef EV_NO_SMP |
|
|
233 | # define ECB_NO_SMP 1 |
164 | #endif |
234 | #endif |
165 | |
235 | |
166 | #ifndef _WIN32 |
236 | #ifndef _WIN32 |
167 | # include <sys/time.h> |
237 | # include <sys/time.h> |
168 | # include <sys/wait.h> |
238 | # include <sys/wait.h> |
169 | # include <unistd.h> |
239 | # include <unistd.h> |
170 | #else |
240 | #else |
171 | # include <io.h> |
241 | # include <io.h> |
172 | # define WIN32_LEAN_AND_MEAN |
242 | # define WIN32_LEAN_AND_MEAN |
|
|
243 | # include <winsock2.h> |
173 | # include <windows.h> |
244 | # include <windows.h> |
174 | # ifndef EV_SELECT_IS_WINSOCKET |
245 | # ifndef EV_SELECT_IS_WINSOCKET |
175 | # define EV_SELECT_IS_WINSOCKET 1 |
246 | # define EV_SELECT_IS_WINSOCKET 1 |
176 | # endif |
247 | # endif |
|
|
248 | # undef EV_AVOID_STDIO |
177 | #endif |
249 | #endif |
178 | |
250 | |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
251 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
180 | |
252 | |
|
|
253 | /* try to deduce the maximum number of signals on this platform */ |
|
|
254 | #if defined EV_NSIG |
|
|
255 | /* use what's provided */ |
|
|
256 | #elif defined NSIG |
|
|
257 | # define EV_NSIG (NSIG) |
|
|
258 | #elif defined _NSIG |
|
|
259 | # define EV_NSIG (_NSIG) |
|
|
260 | #elif defined SIGMAX |
|
|
261 | # define EV_NSIG (SIGMAX+1) |
|
|
262 | #elif defined SIG_MAX |
|
|
263 | # define EV_NSIG (SIG_MAX+1) |
|
|
264 | #elif defined _SIG_MAX |
|
|
265 | # define EV_NSIG (_SIG_MAX+1) |
|
|
266 | #elif defined MAXSIG |
|
|
267 | # define EV_NSIG (MAXSIG+1) |
|
|
268 | #elif defined MAX_SIG |
|
|
269 | # define EV_NSIG (MAX_SIG+1) |
|
|
270 | #elif defined SIGARRAYSIZE |
|
|
271 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
272 | #elif defined _sys_nsig |
|
|
273 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
274 | #else |
|
|
275 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
|
|
276 | #endif |
|
|
277 | |
|
|
278 | #ifndef EV_USE_FLOOR |
|
|
279 | # define EV_USE_FLOOR 0 |
|
|
280 | #endif |
|
|
281 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
282 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
283 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
284 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
184 | # else |
285 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
286 | # define EV_USE_CLOCK_SYSCALL 0 |
186 | # endif |
287 | # endif |
187 | #endif |
288 | #endif |
188 | |
289 | |
|
|
290 | #if !(_POSIX_TIMERS > 0) |
|
|
291 | # ifndef EV_USE_MONOTONIC |
|
|
292 | # define EV_USE_MONOTONIC 0 |
|
|
293 | # endif |
|
|
294 | # ifndef EV_USE_REALTIME |
|
|
295 | # define EV_USE_REALTIME 0 |
|
|
296 | # endif |
|
|
297 | #endif |
|
|
298 | |
189 | #ifndef EV_USE_MONOTONIC |
299 | #ifndef EV_USE_MONOTONIC |
190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
300 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
191 | # define EV_USE_MONOTONIC 1 |
301 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
192 | # else |
302 | # else |
193 | # define EV_USE_MONOTONIC 0 |
303 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
304 | # endif |
195 | #endif |
305 | #endif |
196 | |
306 | |
… | |
… | |
198 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
308 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
309 | #endif |
200 | |
310 | |
201 | #ifndef EV_USE_NANOSLEEP |
311 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
312 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
313 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
204 | # else |
314 | # else |
205 | # define EV_USE_NANOSLEEP 0 |
315 | # define EV_USE_NANOSLEEP 0 |
206 | # endif |
316 | # endif |
207 | #endif |
317 | #endif |
208 | |
318 | |
209 | #ifndef EV_USE_SELECT |
319 | #ifndef EV_USE_SELECT |
210 | # define EV_USE_SELECT 1 |
320 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
211 | #endif |
321 | #endif |
212 | |
322 | |
213 | #ifndef EV_USE_POLL |
323 | #ifndef EV_USE_POLL |
214 | # ifdef _WIN32 |
324 | # ifdef _WIN32 |
215 | # define EV_USE_POLL 0 |
325 | # define EV_USE_POLL 0 |
216 | # else |
326 | # else |
217 | # define EV_USE_POLL 1 |
327 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
218 | # endif |
328 | # endif |
219 | #endif |
329 | #endif |
220 | |
330 | |
221 | #ifndef EV_USE_EPOLL |
331 | #ifndef EV_USE_EPOLL |
222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
332 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
223 | # define EV_USE_EPOLL 1 |
333 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
224 | # else |
334 | # else |
225 | # define EV_USE_EPOLL 0 |
335 | # define EV_USE_EPOLL 0 |
226 | # endif |
336 | # endif |
227 | #endif |
337 | #endif |
228 | |
338 | |
… | |
… | |
232 | |
342 | |
233 | #ifndef EV_USE_PORT |
343 | #ifndef EV_USE_PORT |
234 | # define EV_USE_PORT 0 |
344 | # define EV_USE_PORT 0 |
235 | #endif |
345 | #endif |
236 | |
346 | |
|
|
347 | #ifndef EV_USE_LINUXAIO |
|
|
348 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
|
|
349 | # define EV_USE_LINUXAIO 0 /* was: 1, always off by default */ |
|
|
350 | # else |
|
|
351 | # define EV_USE_LINUXAIO 0 |
|
|
352 | # endif |
|
|
353 | #endif |
|
|
354 | |
|
|
355 | #ifndef EV_USE_IOURING |
|
|
356 | # if __linux /* later checks might disable again */ |
|
|
357 | # define EV_USE_IOURING 1 |
|
|
358 | # else |
|
|
359 | # define EV_USE_IOURING 0 |
|
|
360 | # endif |
|
|
361 | #endif |
|
|
362 | |
237 | #ifndef EV_USE_INOTIFY |
363 | #ifndef EV_USE_INOTIFY |
238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
364 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
239 | # define EV_USE_INOTIFY 1 |
365 | # define EV_USE_INOTIFY EV_FEATURE_OS |
240 | # else |
366 | # else |
241 | # define EV_USE_INOTIFY 0 |
367 | # define EV_USE_INOTIFY 0 |
242 | # endif |
368 | # endif |
243 | #endif |
369 | #endif |
244 | |
370 | |
245 | #ifndef EV_PID_HASHSIZE |
371 | #ifndef EV_PID_HASHSIZE |
246 | # if EV_MINIMAL |
372 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
247 | # define EV_PID_HASHSIZE 1 |
|
|
248 | # else |
|
|
249 | # define EV_PID_HASHSIZE 16 |
|
|
250 | # endif |
|
|
251 | #endif |
373 | #endif |
252 | |
374 | |
253 | #ifndef EV_INOTIFY_HASHSIZE |
375 | #ifndef EV_INOTIFY_HASHSIZE |
254 | # if EV_MINIMAL |
376 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
255 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
256 | # else |
|
|
257 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
258 | # endif |
|
|
259 | #endif |
377 | #endif |
260 | |
378 | |
261 | #ifndef EV_USE_EVENTFD |
379 | #ifndef EV_USE_EVENTFD |
262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
380 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
263 | # define EV_USE_EVENTFD 1 |
381 | # define EV_USE_EVENTFD EV_FEATURE_OS |
264 | # else |
382 | # else |
265 | # define EV_USE_EVENTFD 0 |
383 | # define EV_USE_EVENTFD 0 |
|
|
384 | # endif |
|
|
385 | #endif |
|
|
386 | |
|
|
387 | #ifndef EV_USE_SIGNALFD |
|
|
388 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
389 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
390 | # else |
|
|
391 | # define EV_USE_SIGNALFD 0 |
|
|
392 | # endif |
|
|
393 | #endif |
|
|
394 | |
|
|
395 | #ifndef EV_USE_TIMERFD |
|
|
396 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)) |
|
|
397 | # define EV_USE_TIMERFD EV_FEATURE_OS |
|
|
398 | # else |
|
|
399 | # define EV_USE_TIMERFD 0 |
266 | # endif |
400 | # endif |
267 | #endif |
401 | #endif |
268 | |
402 | |
269 | #if 0 /* debugging */ |
403 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
404 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
405 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
406 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
407 | #endif |
274 | |
408 | |
275 | #ifndef EV_VERIFY |
409 | #ifndef EV_VERIFY |
276 | # define EV_VERIFY !EV_MINIMAL |
410 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
277 | #endif |
411 | #endif |
278 | |
412 | |
279 | #ifndef EV_USE_4HEAP |
413 | #ifndef EV_USE_4HEAP |
280 | # define EV_USE_4HEAP !EV_MINIMAL |
414 | # define EV_USE_4HEAP EV_FEATURE_DATA |
281 | #endif |
415 | #endif |
282 | |
416 | |
283 | #ifndef EV_HEAP_CACHE_AT |
417 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
418 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
419 | #endif |
|
|
420 | |
|
|
421 | #ifdef __ANDROID__ |
|
|
422 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
423 | # undef EV_USE_SELECT |
|
|
424 | # define EV_USE_SELECT 0 |
|
|
425 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
426 | # undef EV_USE_CLOCK_SYSCALL |
|
|
427 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
428 | #endif |
|
|
429 | |
|
|
430 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
431 | #ifdef _AIX |
|
|
432 | /* AIX has a completely broken poll.h header */ |
|
|
433 | # undef EV_USE_POLL |
|
|
434 | # define EV_USE_POLL 0 |
|
|
435 | #endif |
|
|
436 | |
|
|
437 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
438 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
439 | #if EV_USE_CLOCK_SYSCALL |
|
|
440 | # include <sys/syscall.h> |
|
|
441 | # ifdef SYS_clock_gettime |
|
|
442 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
443 | # undef EV_USE_MONOTONIC |
|
|
444 | # define EV_USE_MONOTONIC 1 |
|
|
445 | # define EV_NEED_SYSCALL 1 |
|
|
446 | # else |
|
|
447 | # undef EV_USE_CLOCK_SYSCALL |
|
|
448 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
449 | # endif |
285 | #endif |
450 | #endif |
286 | |
451 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
452 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
288 | |
453 | |
289 | #ifndef CLOCK_MONOTONIC |
454 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
299 | #if !EV_STAT_ENABLE |
464 | #if !EV_STAT_ENABLE |
300 | # undef EV_USE_INOTIFY |
465 | # undef EV_USE_INOTIFY |
301 | # define EV_USE_INOTIFY 0 |
466 | # define EV_USE_INOTIFY 0 |
302 | #endif |
467 | #endif |
303 | |
468 | |
|
|
469 | #if __linux && EV_USE_IOURING |
|
|
470 | # include <linux/version.h> |
|
|
471 | # if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0) |
|
|
472 | # undef EV_USE_IOURING |
|
|
473 | # define EV_USE_IOURING 0 |
|
|
474 | # endif |
|
|
475 | #endif |
|
|
476 | |
304 | #if !EV_USE_NANOSLEEP |
477 | #if !EV_USE_NANOSLEEP |
305 | # ifndef _WIN32 |
478 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
479 | # if !defined _WIN32 && !defined __hpux |
306 | # include <sys/select.h> |
480 | # include <sys/select.h> |
307 | # endif |
481 | # endif |
308 | #endif |
482 | #endif |
309 | |
483 | |
|
|
484 | #if EV_USE_LINUXAIO |
|
|
485 | # include <sys/syscall.h> |
|
|
486 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
487 | # define EV_NEED_SYSCALL 1 |
|
|
488 | # else |
|
|
489 | # undef EV_USE_LINUXAIO |
|
|
490 | # define EV_USE_LINUXAIO 0 |
|
|
491 | # endif |
|
|
492 | #endif |
|
|
493 | |
|
|
494 | #if EV_USE_IOURING |
|
|
495 | # include <sys/syscall.h> |
|
|
496 | # if !SYS_io_uring_setup && __linux && !__alpha |
|
|
497 | # define SYS_io_uring_setup 425 |
|
|
498 | # define SYS_io_uring_enter 426 |
|
|
499 | # define SYS_io_uring_wregister 427 |
|
|
500 | # endif |
|
|
501 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
502 | # define EV_NEED_SYSCALL 1 |
|
|
503 | # else |
|
|
504 | # undef EV_USE_IOURING |
|
|
505 | # define EV_USE_IOURING 0 |
|
|
506 | # endif |
|
|
507 | #endif |
|
|
508 | |
310 | #if EV_USE_INOTIFY |
509 | #if EV_USE_INOTIFY |
311 | # include <sys/utsname.h> |
|
|
312 | # include <sys/statfs.h> |
510 | # include <sys/statfs.h> |
313 | # include <sys/inotify.h> |
511 | # include <sys/inotify.h> |
314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
512 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
315 | # ifndef IN_DONT_FOLLOW |
513 | # ifndef IN_DONT_FOLLOW |
316 | # undef EV_USE_INOTIFY |
514 | # undef EV_USE_INOTIFY |
317 | # define EV_USE_INOTIFY 0 |
515 | # define EV_USE_INOTIFY 0 |
318 | # endif |
516 | # endif |
319 | #endif |
517 | #endif |
320 | |
518 | |
321 | #if EV_SELECT_IS_WINSOCKET |
|
|
322 | # include <winsock.h> |
|
|
323 | #endif |
|
|
324 | |
|
|
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
519 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
520 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
336 | # include <stdint.h> |
521 | # include <stdint.h> |
337 | # ifdef __cplusplus |
522 | # ifndef EFD_NONBLOCK |
338 | extern "C" { |
523 | # define EFD_NONBLOCK O_NONBLOCK |
339 | # endif |
524 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
525 | # ifndef EFD_CLOEXEC |
341 | # ifdef __cplusplus |
526 | # ifdef O_CLOEXEC |
342 | } |
527 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
528 | # else |
|
|
529 | # define EFD_CLOEXEC 02000000 |
|
|
530 | # endif |
343 | # endif |
531 | # endif |
|
|
532 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
533 | #endif |
|
|
534 | |
|
|
535 | #if EV_USE_SIGNALFD |
|
|
536 | /* our minimum requirement is glibc 2.7 which has the stub, but not the full header */ |
|
|
537 | # include <stdint.h> |
|
|
538 | # ifndef SFD_NONBLOCK |
|
|
539 | # define SFD_NONBLOCK O_NONBLOCK |
344 | #endif |
540 | # endif |
|
|
541 | # ifndef SFD_CLOEXEC |
|
|
542 | # ifdef O_CLOEXEC |
|
|
543 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
544 | # else |
|
|
545 | # define SFD_CLOEXEC 02000000 |
|
|
546 | # endif |
|
|
547 | # endif |
|
|
548 | EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags); |
345 | |
549 | |
346 | /**/ |
550 | struct signalfd_siginfo |
|
|
551 | { |
|
|
552 | uint32_t ssi_signo; |
|
|
553 | char pad[128 - sizeof (uint32_t)]; |
|
|
554 | }; |
|
|
555 | #endif |
|
|
556 | |
|
|
557 | /* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */ |
|
|
558 | #if EV_USE_TIMERFD |
|
|
559 | # include <sys/timerfd.h> |
|
|
560 | /* timerfd is only used for periodics */ |
|
|
561 | # if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE |
|
|
562 | # undef EV_USE_TIMERFD |
|
|
563 | # define EV_USE_TIMERFD 0 |
|
|
564 | # endif |
|
|
565 | #endif |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
347 | |
568 | |
348 | #if EV_VERIFY >= 3 |
569 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
570 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
350 | #else |
571 | #else |
351 | # define EV_FREQUENT_CHECK do { } while (0) |
572 | # define EV_FREQUENT_CHECK do { } while (0) |
352 | #endif |
573 | #endif |
353 | |
574 | |
354 | /* |
575 | /* |
355 | * This is used to avoid floating point rounding problems. |
576 | * This is used to work around floating point rounding problems. |
356 | * It is added to ev_rt_now when scheduling periodics |
|
|
357 | * to ensure progress, time-wise, even when rounding |
|
|
358 | * errors are against us. |
|
|
359 | * This value is good at least till the year 4000. |
577 | * This value is good at least till the year 4000. |
360 | * Better solutions welcome. |
|
|
361 | */ |
578 | */ |
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
579 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
580 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
363 | |
581 | |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
582 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
583 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
367 | |
584 | |
|
|
585 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
586 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
587 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
588 | #define EV_TSTAMP_HUGE \ |
|
|
589 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
590 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
591 | : 2147483647.) \ |
|
|
592 | |
|
|
593 | #ifndef EV_TS_CONST |
|
|
594 | # define EV_TS_CONST(nv) nv |
|
|
595 | # define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
596 | # define EV_TS_FROM_USEC(us) us * 1e-6 |
|
|
597 | # define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
598 | # define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
599 | # define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
600 | # define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
601 | #endif |
|
|
602 | |
|
|
603 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
604 | /* ECB.H BEGIN */ |
|
|
605 | /* |
|
|
606 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
607 | * |
|
|
608 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
609 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
610 | * All rights reserved. |
|
|
611 | * |
|
|
612 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
613 | * tion, are permitted provided that the following conditions are met: |
|
|
614 | * |
|
|
615 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
616 | * this list of conditions and the following disclaimer. |
|
|
617 | * |
|
|
618 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
619 | * notice, this list of conditions and the following disclaimer in the |
|
|
620 | * documentation and/or other materials provided with the distribution. |
|
|
621 | * |
|
|
622 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
623 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
624 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
625 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
626 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
627 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
628 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
629 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
630 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
631 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
632 | * |
|
|
633 | * Alternatively, the contents of this file may be used under the terms of |
|
|
634 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
635 | * in which case the provisions of the GPL are applicable instead of |
|
|
636 | * the above. If you wish to allow the use of your version of this file |
|
|
637 | * only under the terms of the GPL and not to allow others to use your |
|
|
638 | * version of this file under the BSD license, indicate your decision |
|
|
639 | * by deleting the provisions above and replace them with the notice |
|
|
640 | * and other provisions required by the GPL. If you do not delete the |
|
|
641 | * provisions above, a recipient may use your version of this file under |
|
|
642 | * either the BSD or the GPL. |
|
|
643 | */ |
|
|
644 | |
|
|
645 | #ifndef ECB_H |
|
|
646 | #define ECB_H |
|
|
647 | |
|
|
648 | /* 16 bits major, 16 bits minor */ |
|
|
649 | #define ECB_VERSION 0x00010006 |
|
|
650 | |
|
|
651 | #ifdef _WIN32 |
|
|
652 | typedef signed char int8_t; |
|
|
653 | typedef unsigned char uint8_t; |
|
|
654 | typedef signed short int16_t; |
|
|
655 | typedef unsigned short uint16_t; |
|
|
656 | typedef signed int int32_t; |
|
|
657 | typedef unsigned int uint32_t; |
368 | #if __GNUC__ >= 4 |
658 | #if __GNUC__ |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
659 | typedef signed long long int64_t; |
370 | # define noinline __attribute__ ((noinline)) |
660 | typedef unsigned long long uint64_t; |
|
|
661 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
662 | typedef signed __int64 int64_t; |
|
|
663 | typedef unsigned __int64 uint64_t; |
|
|
664 | #endif |
|
|
665 | #ifdef _WIN64 |
|
|
666 | #define ECB_PTRSIZE 8 |
|
|
667 | typedef uint64_t uintptr_t; |
|
|
668 | typedef int64_t intptr_t; |
|
|
669 | #else |
|
|
670 | #define ECB_PTRSIZE 4 |
|
|
671 | typedef uint32_t uintptr_t; |
|
|
672 | typedef int32_t intptr_t; |
|
|
673 | #endif |
371 | #else |
674 | #else |
372 | # define expect(expr,value) (expr) |
675 | #include <inttypes.h> |
373 | # define noinline |
676 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
374 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
677 | #define ECB_PTRSIZE 8 |
375 | # define inline |
678 | #else |
|
|
679 | #define ECB_PTRSIZE 4 |
|
|
680 | #endif |
376 | # endif |
681 | #endif |
|
|
682 | |
|
|
683 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
684 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
685 | |
|
|
686 | /* work around x32 idiocy by defining proper macros */ |
|
|
687 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
688 | #if _ILP32 |
|
|
689 | #define ECB_AMD64_X32 1 |
|
|
690 | #else |
|
|
691 | #define ECB_AMD64 1 |
377 | #endif |
692 | #endif |
|
|
693 | #endif |
378 | |
694 | |
379 | #define expect_false(expr) expect ((expr) != 0, 0) |
695 | /* many compilers define _GNUC_ to some versions but then only implement |
380 | #define expect_true(expr) expect ((expr) != 0, 1) |
696 | * what their idiot authors think are the "more important" extensions, |
381 | #define inline_size static inline |
697 | * causing enormous grief in return for some better fake benchmark numbers. |
382 | |
698 | * or so. |
383 | #if EV_MINIMAL |
699 | * we try to detect these and simply assume they are not gcc - if they have |
384 | # define inline_speed static noinline |
700 | * an issue with that they should have done it right in the first place. |
|
|
701 | */ |
|
|
702 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
703 | #define ECB_GCC_VERSION(major,minor) 0 |
385 | #else |
704 | #else |
|
|
705 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
706 | #endif |
|
|
707 | |
|
|
708 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
709 | |
|
|
710 | #if __clang__ && defined __has_builtin |
|
|
711 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
712 | #else |
|
|
713 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
714 | #endif |
|
|
715 | |
|
|
716 | #if __clang__ && defined __has_extension |
|
|
717 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
718 | #else |
|
|
719 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
720 | #endif |
|
|
721 | |
|
|
722 | #define ECB_CPP (__cplusplus+0) |
|
|
723 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
724 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
725 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
726 | |
|
|
727 | #if ECB_CPP |
|
|
728 | #define ECB_C 0 |
|
|
729 | #define ECB_STDC_VERSION 0 |
|
|
730 | #else |
|
|
731 | #define ECB_C 1 |
|
|
732 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
733 | #endif |
|
|
734 | |
|
|
735 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
736 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
737 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
738 | |
|
|
739 | #if ECB_CPP |
|
|
740 | #define ECB_EXTERN_C extern "C" |
|
|
741 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
742 | #define ECB_EXTERN_C_END } |
|
|
743 | #else |
|
|
744 | #define ECB_EXTERN_C extern |
|
|
745 | #define ECB_EXTERN_C_BEG |
|
|
746 | #define ECB_EXTERN_C_END |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | /*****************************************************************************/ |
|
|
750 | |
|
|
751 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
752 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
753 | |
|
|
754 | #if ECB_NO_THREADS |
|
|
755 | #define ECB_NO_SMP 1 |
|
|
756 | #endif |
|
|
757 | |
|
|
758 | #if ECB_NO_SMP |
|
|
759 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
760 | #endif |
|
|
761 | |
|
|
762 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
763 | #if __xlC__ && ECB_CPP |
|
|
764 | #include <builtins.h> |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | #if 1400 <= _MSC_VER |
|
|
768 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
769 | #endif |
|
|
770 | |
|
|
771 | #ifndef ECB_MEMORY_FENCE |
|
|
772 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
773 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
774 | #if __i386 || __i386__ |
|
|
775 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
776 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
777 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
778 | #elif ECB_GCC_AMD64 |
|
|
779 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
780 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
781 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
782 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
783 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
784 | #elif defined __ARM_ARCH_2__ \ |
|
|
785 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
786 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
787 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
788 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
789 | || defined __ARM_ARCH_5TEJ__ |
|
|
790 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
791 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
792 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
793 | || defined __ARM_ARCH_6T2__ |
|
|
794 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
795 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
796 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
797 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
798 | #elif __aarch64__ |
|
|
799 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
800 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
801 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
802 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
803 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
804 | #elif defined __s390__ || defined __s390x__ |
|
|
805 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
806 | #elif defined __mips__ |
|
|
807 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
808 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
809 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
810 | #elif defined __alpha__ |
|
|
811 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
812 | #elif defined __hppa__ |
|
|
813 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
814 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
815 | #elif defined __ia64__ |
|
|
816 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
817 | #elif defined __m68k__ |
|
|
818 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
819 | #elif defined __m88k__ |
|
|
820 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
821 | #elif defined __sh__ |
|
|
822 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
823 | #endif |
|
|
824 | #endif |
|
|
825 | #endif |
|
|
826 | |
|
|
827 | #ifndef ECB_MEMORY_FENCE |
|
|
828 | #if ECB_GCC_VERSION(4,7) |
|
|
829 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
830 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
831 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
832 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
833 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
834 | |
|
|
835 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
836 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
837 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
838 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
839 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
840 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
841 | |
|
|
842 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
843 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
844 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
845 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
846 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
847 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
848 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
849 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
850 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
851 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
852 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
853 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
854 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
855 | #elif defined _WIN32 |
|
|
856 | #include <WinNT.h> |
|
|
857 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
858 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
859 | #include <mbarrier.h> |
|
|
860 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
861 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
862 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
863 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
864 | #elif __xlC__ |
|
|
865 | #define ECB_MEMORY_FENCE __sync () |
|
|
866 | #endif |
|
|
867 | #endif |
|
|
868 | |
|
|
869 | #ifndef ECB_MEMORY_FENCE |
|
|
870 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
871 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
872 | /* not just C11 atomics and atomic accesses */ |
|
|
873 | #include <stdatomic.h> |
|
|
874 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
875 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
876 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
877 | #endif |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | #ifndef ECB_MEMORY_FENCE |
|
|
881 | #if !ECB_AVOID_PTHREADS |
|
|
882 | /* |
|
|
883 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
884 | * or failure to find pthread.h, then you should implement |
|
|
885 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
886 | * OR provide pthread.h and link against the posix thread library |
|
|
887 | * of your system. |
|
|
888 | */ |
|
|
889 | #include <pthread.h> |
|
|
890 | #define ECB_NEEDS_PTHREADS 1 |
|
|
891 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
892 | |
|
|
893 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
894 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
895 | #endif |
|
|
896 | #endif |
|
|
897 | |
|
|
898 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
899 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
900 | #endif |
|
|
901 | |
|
|
902 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
903 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
907 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
908 | #endif |
|
|
909 | |
|
|
910 | /*****************************************************************************/ |
|
|
911 | |
|
|
912 | #if ECB_CPP |
|
|
913 | #define ecb_inline static inline |
|
|
914 | #elif ECB_GCC_VERSION(2,5) |
|
|
915 | #define ecb_inline static __inline__ |
|
|
916 | #elif ECB_C99 |
|
|
917 | #define ecb_inline static inline |
|
|
918 | #else |
|
|
919 | #define ecb_inline static |
|
|
920 | #endif |
|
|
921 | |
|
|
922 | #if ECB_GCC_VERSION(3,3) |
|
|
923 | #define ecb_restrict __restrict__ |
|
|
924 | #elif ECB_C99 |
|
|
925 | #define ecb_restrict restrict |
|
|
926 | #else |
|
|
927 | #define ecb_restrict |
|
|
928 | #endif |
|
|
929 | |
|
|
930 | typedef int ecb_bool; |
|
|
931 | |
|
|
932 | #define ECB_CONCAT_(a, b) a ## b |
|
|
933 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
934 | #define ECB_STRINGIFY_(a) # a |
|
|
935 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
936 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
937 | |
|
|
938 | #define ecb_function_ ecb_inline |
|
|
939 | |
|
|
940 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
941 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
942 | #else |
|
|
943 | #define ecb_attribute(attrlist) |
|
|
944 | #endif |
|
|
945 | |
|
|
946 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
947 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
948 | #else |
|
|
949 | /* possible C11 impl for integral types |
|
|
950 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
951 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
952 | |
|
|
953 | #define ecb_is_constant(expr) 0 |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
957 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
958 | #else |
|
|
959 | #define ecb_expect(expr,value) (expr) |
|
|
960 | #endif |
|
|
961 | |
|
|
962 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
963 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
964 | #else |
|
|
965 | #define ecb_prefetch(addr,rw,locality) |
|
|
966 | #endif |
|
|
967 | |
|
|
968 | /* no emulation for ecb_decltype */ |
|
|
969 | #if ECB_CPP11 |
|
|
970 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
971 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
972 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
973 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
974 | #define ecb_decltype(x) __typeof__ (x) |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | #if _MSC_VER >= 1300 |
|
|
978 | #define ecb_deprecated __declspec (deprecated) |
|
|
979 | #else |
|
|
980 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
981 | #endif |
|
|
982 | |
|
|
983 | #if _MSC_VER >= 1500 |
|
|
984 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
985 | #elif ECB_GCC_VERSION(4,5) |
|
|
986 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
987 | #else |
|
|
988 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
989 | #endif |
|
|
990 | |
|
|
991 | #if _MSC_VER >= 1400 |
|
|
992 | #define ecb_noinline __declspec (noinline) |
|
|
993 | #else |
|
|
994 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
995 | #endif |
|
|
996 | |
|
|
997 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
998 | #define ecb_const ecb_attribute ((__const__)) |
|
|
999 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
1000 | |
|
|
1001 | #if ECB_C11 || __IBMC_NORETURN |
|
|
1002 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
1003 | #define ecb_noreturn _Noreturn |
|
|
1004 | #elif ECB_CPP11 |
|
|
1005 | #define ecb_noreturn [[noreturn]] |
|
|
1006 | #elif _MSC_VER >= 1200 |
|
|
1007 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
1008 | #define ecb_noreturn __declspec (noreturn) |
|
|
1009 | #else |
|
|
1010 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
1011 | #endif |
|
|
1012 | |
|
|
1013 | #if ECB_GCC_VERSION(4,3) |
|
|
1014 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
1015 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
1016 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
1017 | #else |
|
|
1018 | #define ecb_artificial |
|
|
1019 | #define ecb_hot |
|
|
1020 | #define ecb_cold |
|
|
1021 | #endif |
|
|
1022 | |
|
|
1023 | /* put around conditional expressions if you are very sure that the */ |
|
|
1024 | /* expression is mostly true or mostly false. note that these return */ |
|
|
1025 | /* booleans, not the expression. */ |
|
|
1026 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
|
|
1027 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
1028 | /* for compatibility to the rest of the world */ |
|
|
1029 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
1030 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
1031 | |
|
|
1032 | /* count trailing zero bits and count # of one bits */ |
|
|
1033 | #if ECB_GCC_VERSION(3,4) \ |
|
|
1034 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
1035 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
1036 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
1037 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
1038 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
1039 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
1040 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
1041 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
1042 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
1043 | /* no popcountll */ |
|
|
1044 | #else |
|
|
1045 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
1046 | ecb_function_ ecb_const int |
|
|
1047 | ecb_ctz32 (uint32_t x) |
|
|
1048 | { |
|
|
1049 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1050 | unsigned long r; |
|
|
1051 | _BitScanForward (&r, x); |
|
|
1052 | return (int)r; |
|
|
1053 | #else |
|
|
1054 | int r = 0; |
|
|
1055 | |
|
|
1056 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1057 | |
|
|
1058 | #if ECB_branchless_on_i386 |
|
|
1059 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1060 | r += !!(x & 0xcccccccc) << 1; |
|
|
1061 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1062 | r += !!(x & 0xff00ff00) << 3; |
|
|
1063 | r += !!(x & 0xffff0000) << 4; |
|
|
1064 | #else |
|
|
1065 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1066 | if (x & 0xcccccccc) r += 2; |
|
|
1067 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1068 | if (x & 0xff00ff00) r += 8; |
|
|
1069 | if (x & 0xffff0000) r += 16; |
|
|
1070 | #endif |
|
|
1071 | |
|
|
1072 | return r; |
|
|
1073 | #endif |
|
|
1074 | } |
|
|
1075 | |
|
|
1076 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1077 | ecb_function_ ecb_const int |
|
|
1078 | ecb_ctz64 (uint64_t x) |
|
|
1079 | { |
|
|
1080 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1081 | unsigned long r; |
|
|
1082 | _BitScanForward64 (&r, x); |
|
|
1083 | return (int)r; |
|
|
1084 | #else |
|
|
1085 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1086 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1087 | #endif |
|
|
1088 | } |
|
|
1089 | |
|
|
1090 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1091 | ecb_function_ ecb_const int |
|
|
1092 | ecb_popcount32 (uint32_t x) |
|
|
1093 | { |
|
|
1094 | x -= (x >> 1) & 0x55555555; |
|
|
1095 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1096 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1097 | x *= 0x01010101; |
|
|
1098 | |
|
|
1099 | return x >> 24; |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1103 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1104 | { |
|
|
1105 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1106 | unsigned long r; |
|
|
1107 | _BitScanReverse (&r, x); |
|
|
1108 | return (int)r; |
|
|
1109 | #else |
|
|
1110 | int r = 0; |
|
|
1111 | |
|
|
1112 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1113 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1114 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1115 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1116 | if (x >> 1) { r += 1; } |
|
|
1117 | |
|
|
1118 | return r; |
|
|
1119 | #endif |
|
|
1120 | } |
|
|
1121 | |
|
|
1122 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1123 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1124 | { |
|
|
1125 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1126 | unsigned long r; |
|
|
1127 | _BitScanReverse64 (&r, x); |
|
|
1128 | return (int)r; |
|
|
1129 | #else |
|
|
1130 | int r = 0; |
|
|
1131 | |
|
|
1132 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1133 | |
|
|
1134 | return r + ecb_ld32 (x); |
|
|
1135 | #endif |
|
|
1136 | } |
|
|
1137 | #endif |
|
|
1138 | |
|
|
1139 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1140 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1141 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1142 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1143 | |
|
|
1144 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1145 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1146 | { |
|
|
1147 | return ( (x * 0x0802U & 0x22110U) |
|
|
1148 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1152 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1153 | { |
|
|
1154 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1155 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1156 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1157 | x = ( x >> 8 ) | ( x << 8); |
|
|
1158 | |
|
|
1159 | return x; |
|
|
1160 | } |
|
|
1161 | |
|
|
1162 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1163 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1164 | { |
|
|
1165 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1166 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1167 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1168 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1169 | x = ( x >> 16 ) | ( x << 16); |
|
|
1170 | |
|
|
1171 | return x; |
|
|
1172 | } |
|
|
1173 | |
|
|
1174 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1175 | /* so for this version we are lazy */ |
|
|
1176 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1177 | ecb_function_ ecb_const int |
|
|
1178 | ecb_popcount64 (uint64_t x) |
|
|
1179 | { |
|
|
1180 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1184 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1185 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1186 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1187 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1188 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1189 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1190 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1191 | |
|
|
1192 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1193 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1194 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1195 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1196 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1197 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1198 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1199 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1200 | |
|
|
1201 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1202 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1203 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1204 | #else |
|
|
1205 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1206 | #endif |
|
|
1207 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1208 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1209 | #elif _MSC_VER |
|
|
1210 | #include <stdlib.h> |
|
|
1211 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1212 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1213 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1214 | #else |
|
|
1215 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1216 | ecb_function_ ecb_const uint16_t |
|
|
1217 | ecb_bswap16 (uint16_t x) |
|
|
1218 | { |
|
|
1219 | return ecb_rotl16 (x, 8); |
|
|
1220 | } |
|
|
1221 | |
|
|
1222 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1223 | ecb_function_ ecb_const uint32_t |
|
|
1224 | ecb_bswap32 (uint32_t x) |
|
|
1225 | { |
|
|
1226 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1230 | ecb_function_ ecb_const uint64_t |
|
|
1231 | ecb_bswap64 (uint64_t x) |
|
|
1232 | { |
|
|
1233 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1234 | } |
|
|
1235 | #endif |
|
|
1236 | |
|
|
1237 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1238 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1239 | #else |
|
|
1240 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1241 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1242 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1243 | #endif |
|
|
1244 | |
|
|
1245 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1246 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1247 | |
|
|
1248 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1249 | ecb_inline ecb_const uint32_t |
|
|
1250 | ecb_byteorder_helper (void) |
|
|
1251 | { |
|
|
1252 | /* the union code still generates code under pressure in gcc, */ |
|
|
1253 | /* but less than using pointers, and always seems to */ |
|
|
1254 | /* successfully return a constant. */ |
|
|
1255 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1256 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1257 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1258 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1259 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1260 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1261 | return 0x44332211; |
|
|
1262 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1263 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1264 | #define ECB_BIG_ENDIAN 1 |
|
|
1265 | return 0x11223344; |
|
|
1266 | #else |
|
|
1267 | union |
|
|
1268 | { |
|
|
1269 | uint8_t c[4]; |
|
|
1270 | uint32_t u; |
|
|
1271 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1272 | return u.u; |
|
|
1273 | #endif |
|
|
1274 | } |
|
|
1275 | |
|
|
1276 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1277 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1278 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1279 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1280 | |
|
|
1281 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1282 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1283 | #else |
|
|
1284 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1285 | #endif |
|
|
1286 | |
|
|
1287 | #if ECB_CPP |
|
|
1288 | template<typename T> |
|
|
1289 | static inline T ecb_div_rd (T val, T div) |
|
|
1290 | { |
|
|
1291 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1292 | } |
|
|
1293 | template<typename T> |
|
|
1294 | static inline T ecb_div_ru (T val, T div) |
|
|
1295 | { |
|
|
1296 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1297 | } |
|
|
1298 | #else |
|
|
1299 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1300 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1301 | #endif |
|
|
1302 | |
|
|
1303 | #if ecb_cplusplus_does_not_suck |
|
|
1304 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1305 | template<typename T, int N> |
|
|
1306 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1307 | { |
|
|
1308 | return N; |
|
|
1309 | } |
|
|
1310 | #else |
|
|
1311 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1312 | #endif |
|
|
1313 | |
|
|
1314 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1315 | ecb_function_ ecb_const uint32_t |
|
|
1316 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1317 | { |
|
|
1318 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1319 | int e = (x >> 10) & 0x001f; |
|
|
1320 | unsigned int m = x & 0x03ff; |
|
|
1321 | |
|
|
1322 | if (ecb_expect_false (e == 31)) |
|
|
1323 | /* infinity or NaN */ |
|
|
1324 | e = 255 - (127 - 15); |
|
|
1325 | else if (ecb_expect_false (!e)) |
|
|
1326 | { |
|
|
1327 | if (ecb_expect_true (!m)) |
|
|
1328 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1329 | e = 0 - (127 - 15); |
|
|
1330 | else |
|
|
1331 | { |
|
|
1332 | /* subnormal, renormalise */ |
|
|
1333 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1334 | |
|
|
1335 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1336 | e -= s - 1; |
|
|
1337 | } |
|
|
1338 | } |
|
|
1339 | |
|
|
1340 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1341 | e += 127 - 15; |
|
|
1342 | |
|
|
1343 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1347 | ecb_function_ ecb_const uint16_t |
|
|
1348 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1349 | { |
|
|
1350 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1351 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1352 | unsigned int m = x & 0x007fffff; |
|
|
1353 | |
|
|
1354 | x &= 0x7fffffff; |
|
|
1355 | |
|
|
1356 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1357 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1358 | { |
|
|
1359 | /* mantissa round-to-even */ |
|
|
1360 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1361 | |
|
|
1362 | /* handle overflow */ |
|
|
1363 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1364 | { |
|
|
1365 | m >>= 1; |
|
|
1366 | e += 1; |
|
|
1367 | } |
|
|
1368 | |
|
|
1369 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | /* handle large numbers and infinity */ |
|
|
1373 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1374 | return s | 0x7c00; |
|
|
1375 | |
|
|
1376 | /* handle zero, subnormals and small numbers */ |
|
|
1377 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1378 | { |
|
|
1379 | /* zero */ |
|
|
1380 | if (ecb_expect_true (!x)) |
|
|
1381 | return s; |
|
|
1382 | |
|
|
1383 | /* handle subnormals */ |
|
|
1384 | |
|
|
1385 | /* too small, will be zero */ |
|
|
1386 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1387 | return s; |
|
|
1388 | |
|
|
1389 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1390 | |
|
|
1391 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1392 | { |
|
|
1393 | unsigned int bits = 14 - e; |
|
|
1394 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1395 | unsigned int even = (m >> bits) & 1; |
|
|
1396 | |
|
|
1397 | /* if this overflows, we will end up with a normalised number */ |
|
|
1398 | m = (m + half + even) >> bits; |
|
|
1399 | } |
|
|
1400 | |
|
|
1401 | return s | m; |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1405 | m >>= 13; |
|
|
1406 | |
|
|
1407 | return s | 0x7c00 | m | !m; |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | /*******************************************************************************/ |
|
|
1411 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1412 | |
|
|
1413 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1414 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1415 | #if 0 \ |
|
|
1416 | || __i386 || __i386__ \ |
|
|
1417 | || ECB_GCC_AMD64 \ |
|
|
1418 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1419 | || defined __s390__ || defined __s390x__ \ |
|
|
1420 | || defined __mips__ \ |
|
|
1421 | || defined __alpha__ \ |
|
|
1422 | || defined __hppa__ \ |
|
|
1423 | || defined __ia64__ \ |
|
|
1424 | || defined __m68k__ \ |
|
|
1425 | || defined __m88k__ \ |
|
|
1426 | || defined __sh__ \ |
|
|
1427 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1428 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1429 | || defined __aarch64__ |
|
|
1430 | #define ECB_STDFP 1 |
|
|
1431 | #include <string.h> /* for memcpy */ |
|
|
1432 | #else |
|
|
1433 | #define ECB_STDFP 0 |
|
|
1434 | #endif |
|
|
1435 | |
|
|
1436 | #ifndef ECB_NO_LIBM |
|
|
1437 | |
|
|
1438 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1439 | |
|
|
1440 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1441 | #ifdef INFINITY |
|
|
1442 | #define ECB_INFINITY INFINITY |
|
|
1443 | #else |
|
|
1444 | #define ECB_INFINITY HUGE_VAL |
|
|
1445 | #endif |
|
|
1446 | |
|
|
1447 | #ifdef NAN |
|
|
1448 | #define ECB_NAN NAN |
|
|
1449 | #else |
|
|
1450 | #define ECB_NAN ECB_INFINITY |
|
|
1451 | #endif |
|
|
1452 | |
|
|
1453 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1454 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1455 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1456 | #else |
|
|
1457 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1458 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1459 | #endif |
|
|
1460 | |
|
|
1461 | /* convert a float to ieee single/binary32 */ |
|
|
1462 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1463 | ecb_function_ ecb_const uint32_t |
|
|
1464 | ecb_float_to_binary32 (float x) |
|
|
1465 | { |
|
|
1466 | uint32_t r; |
|
|
1467 | |
|
|
1468 | #if ECB_STDFP |
|
|
1469 | memcpy (&r, &x, 4); |
|
|
1470 | #else |
|
|
1471 | /* slow emulation, works for anything but -0 */ |
|
|
1472 | uint32_t m; |
|
|
1473 | int e; |
|
|
1474 | |
|
|
1475 | if (x == 0e0f ) return 0x00000000U; |
|
|
1476 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1477 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1478 | if (x != x ) return 0x7fbfffffU; |
|
|
1479 | |
|
|
1480 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1481 | |
|
|
1482 | r = m & 0x80000000U; |
|
|
1483 | |
|
|
1484 | if (r) |
|
|
1485 | m = -m; |
|
|
1486 | |
|
|
1487 | if (e <= -126) |
|
|
1488 | { |
|
|
1489 | m &= 0xffffffU; |
|
|
1490 | m >>= (-125 - e); |
|
|
1491 | e = -126; |
|
|
1492 | } |
|
|
1493 | |
|
|
1494 | r |= (e + 126) << 23; |
|
|
1495 | r |= m & 0x7fffffU; |
|
|
1496 | #endif |
|
|
1497 | |
|
|
1498 | return r; |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | /* converts an ieee single/binary32 to a float */ |
|
|
1502 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1503 | ecb_function_ ecb_const float |
|
|
1504 | ecb_binary32_to_float (uint32_t x) |
|
|
1505 | { |
|
|
1506 | float r; |
|
|
1507 | |
|
|
1508 | #if ECB_STDFP |
|
|
1509 | memcpy (&r, &x, 4); |
|
|
1510 | #else |
|
|
1511 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1512 | int neg = x >> 31; |
|
|
1513 | int e = (x >> 23) & 0xffU; |
|
|
1514 | |
|
|
1515 | x &= 0x7fffffU; |
|
|
1516 | |
|
|
1517 | if (e) |
|
|
1518 | x |= 0x800000U; |
|
|
1519 | else |
|
|
1520 | e = 1; |
|
|
1521 | |
|
|
1522 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1523 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1524 | |
|
|
1525 | r = neg ? -r : r; |
|
|
1526 | #endif |
|
|
1527 | |
|
|
1528 | return r; |
|
|
1529 | } |
|
|
1530 | |
|
|
1531 | /* convert a double to ieee double/binary64 */ |
|
|
1532 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1533 | ecb_function_ ecb_const uint64_t |
|
|
1534 | ecb_double_to_binary64 (double x) |
|
|
1535 | { |
|
|
1536 | uint64_t r; |
|
|
1537 | |
|
|
1538 | #if ECB_STDFP |
|
|
1539 | memcpy (&r, &x, 8); |
|
|
1540 | #else |
|
|
1541 | /* slow emulation, works for anything but -0 */ |
|
|
1542 | uint64_t m; |
|
|
1543 | int e; |
|
|
1544 | |
|
|
1545 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1546 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1547 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1548 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1549 | |
|
|
1550 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1551 | |
|
|
1552 | r = m & 0x8000000000000000;; |
|
|
1553 | |
|
|
1554 | if (r) |
|
|
1555 | m = -m; |
|
|
1556 | |
|
|
1557 | if (e <= -1022) |
|
|
1558 | { |
|
|
1559 | m &= 0x1fffffffffffffU; |
|
|
1560 | m >>= (-1021 - e); |
|
|
1561 | e = -1022; |
|
|
1562 | } |
|
|
1563 | |
|
|
1564 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1565 | r |= m & 0xfffffffffffffU; |
|
|
1566 | #endif |
|
|
1567 | |
|
|
1568 | return r; |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | /* converts an ieee double/binary64 to a double */ |
|
|
1572 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1573 | ecb_function_ ecb_const double |
|
|
1574 | ecb_binary64_to_double (uint64_t x) |
|
|
1575 | { |
|
|
1576 | double r; |
|
|
1577 | |
|
|
1578 | #if ECB_STDFP |
|
|
1579 | memcpy (&r, &x, 8); |
|
|
1580 | #else |
|
|
1581 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1582 | int neg = x >> 63; |
|
|
1583 | int e = (x >> 52) & 0x7ffU; |
|
|
1584 | |
|
|
1585 | x &= 0xfffffffffffffU; |
|
|
1586 | |
|
|
1587 | if (e) |
|
|
1588 | x |= 0x10000000000000U; |
|
|
1589 | else |
|
|
1590 | e = 1; |
|
|
1591 | |
|
|
1592 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1593 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1594 | |
|
|
1595 | r = neg ? -r : r; |
|
|
1596 | #endif |
|
|
1597 | |
|
|
1598 | return r; |
|
|
1599 | } |
|
|
1600 | |
|
|
1601 | /* convert a float to ieee half/binary16 */ |
|
|
1602 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1603 | ecb_function_ ecb_const uint16_t |
|
|
1604 | ecb_float_to_binary16 (float x) |
|
|
1605 | { |
|
|
1606 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1607 | } |
|
|
1608 | |
|
|
1609 | /* convert an ieee half/binary16 to float */ |
|
|
1610 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1611 | ecb_function_ ecb_const float |
|
|
1612 | ecb_binary16_to_float (uint16_t x) |
|
|
1613 | { |
|
|
1614 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1615 | } |
|
|
1616 | |
|
|
1617 | #endif |
|
|
1618 | |
|
|
1619 | #endif |
|
|
1620 | |
|
|
1621 | /* ECB.H END */ |
|
|
1622 | |
|
|
1623 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1624 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1625 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1626 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1627 | * libev, in which cases the memory fences become nops. |
|
|
1628 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1629 | * which will then provide the memory fences. |
|
|
1630 | */ |
|
|
1631 | # error "memory fences not defined for your architecture, please report" |
|
|
1632 | #endif |
|
|
1633 | |
|
|
1634 | #ifndef ECB_MEMORY_FENCE |
|
|
1635 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1636 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1637 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1638 | #endif |
|
|
1639 | |
|
|
1640 | #define inline_size ecb_inline |
|
|
1641 | |
|
|
1642 | #if EV_FEATURE_CODE |
386 | # define inline_speed static inline |
1643 | # define inline_speed ecb_inline |
|
|
1644 | #else |
|
|
1645 | # define inline_speed ecb_noinline static |
387 | #endif |
1646 | #endif |
388 | |
1647 | |
|
|
1648 | /*****************************************************************************/ |
|
|
1649 | /* raw syscall wrappers */ |
|
|
1650 | |
|
|
1651 | #if EV_NEED_SYSCALL |
|
|
1652 | |
|
|
1653 | #include <sys/syscall.h> |
|
|
1654 | |
|
|
1655 | /* |
|
|
1656 | * define some syscall wrappers for common architectures |
|
|
1657 | * this is mostly for nice looks during debugging, not performance. |
|
|
1658 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1659 | * enough for linux aio. |
|
|
1660 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1661 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1662 | */ |
|
|
1663 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1664 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1665 | |
|
|
1666 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1667 | ({ \ |
|
|
1668 | long res; \ |
|
|
1669 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1670 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1671 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1672 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1673 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1674 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1675 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1676 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1677 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1678 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1679 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1680 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1681 | __asm__ __volatile__ ( \ |
|
|
1682 | "syscall\n\t" \ |
|
|
1683 | : "=a" (res) \ |
|
|
1684 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1685 | : "cc", "r11", "cx", "memory"); \ |
|
|
1686 | errno = -res; \ |
|
|
1687 | res; \ |
|
|
1688 | }) |
|
|
1689 | |
|
|
1690 | #endif |
|
|
1691 | |
|
|
1692 | #ifdef ev_syscall |
|
|
1693 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1694 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1695 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1696 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1697 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1698 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1699 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1700 | #else |
|
|
1701 | #define ev_syscall0(nr) syscall (nr) |
|
|
1702 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1703 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1704 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1705 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1706 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1707 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1708 | #endif |
|
|
1709 | |
|
|
1710 | #endif |
|
|
1711 | |
|
|
1712 | /*****************************************************************************/ |
|
|
1713 | |
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1714 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
1715 | |
|
|
1716 | #if EV_MINPRI == EV_MAXPRI |
|
|
1717 | # define ABSPRI(w) (((W)w), 0) |
|
|
1718 | #else |
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1719 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
1720 | #endif |
391 | |
1721 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1722 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
394 | |
1723 | |
395 | typedef ev_watcher *W; |
1724 | typedef ev_watcher *W; |
396 | typedef ev_watcher_list *WL; |
1725 | typedef ev_watcher_list *WL; |
397 | typedef ev_watcher_time *WT; |
1726 | typedef ev_watcher_time *WT; |
398 | |
1727 | |
399 | #define ev_active(w) ((W)(w))->active |
1728 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
1729 | #define ev_at(w) ((WT)(w))->at |
401 | |
1730 | |
402 | #if EV_USE_REALTIME |
1731 | #if EV_USE_REALTIME |
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1732 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
1733 | /* giving it a reasonably high chance of working on typical architectures */ |
405 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1734 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
406 | #endif |
1735 | #endif |
407 | |
1736 | |
408 | #if EV_USE_MONOTONIC |
1737 | #if EV_USE_MONOTONIC |
409 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1738 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
410 | #endif |
1739 | #endif |
411 | |
1740 | |
|
|
1741 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1742 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1743 | #endif |
|
|
1744 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1745 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1746 | #endif |
|
|
1747 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1748 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
1749 | #endif |
|
|
1750 | |
412 | #ifdef _WIN32 |
1751 | #ifdef _WIN32 |
413 | # include "ev_win32.c" |
1752 | # include "ev_win32.c" |
414 | #endif |
1753 | #endif |
415 | |
1754 | |
416 | /*****************************************************************************/ |
1755 | /*****************************************************************************/ |
417 | |
1756 | |
|
|
1757 | #if EV_USE_LINUXAIO |
|
|
1758 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1759 | #endif |
|
|
1760 | |
|
|
1761 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1762 | |
|
|
1763 | #if EV_USE_FLOOR |
|
|
1764 | # include <math.h> |
|
|
1765 | # define ev_floor(v) floor (v) |
|
|
1766 | #else |
|
|
1767 | |
|
|
1768 | #include <float.h> |
|
|
1769 | |
|
|
1770 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1771 | ecb_noinline |
|
|
1772 | static ev_tstamp |
|
|
1773 | ev_floor (ev_tstamp v) |
|
|
1774 | { |
|
|
1775 | /* the choice of shift factor is not terribly important */ |
|
|
1776 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1777 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1778 | #else |
|
|
1779 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1780 | #endif |
|
|
1781 | |
|
|
1782 | /* special treatment for negative arguments */ |
|
|
1783 | if (ecb_expect_false (v < 0.)) |
|
|
1784 | { |
|
|
1785 | ev_tstamp f = -ev_floor (-v); |
|
|
1786 | |
|
|
1787 | return f - (f == v ? 0 : 1); |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | /* argument too large for an unsigned long? then reduce it */ |
|
|
1791 | if (ecb_expect_false (v >= shift)) |
|
|
1792 | { |
|
|
1793 | ev_tstamp f; |
|
|
1794 | |
|
|
1795 | if (v == v - 1.) |
|
|
1796 | return v; /* very large numbers are assumed to be integer */ |
|
|
1797 | |
|
|
1798 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1799 | return f + ev_floor (v - f); |
|
|
1800 | } |
|
|
1801 | |
|
|
1802 | /* fits into an unsigned long */ |
|
|
1803 | return (unsigned long)v; |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | #endif |
|
|
1807 | |
|
|
1808 | /*****************************************************************************/ |
|
|
1809 | |
|
|
1810 | #ifdef __linux |
|
|
1811 | # include <sys/utsname.h> |
|
|
1812 | #endif |
|
|
1813 | |
|
|
1814 | ecb_noinline ecb_cold |
|
|
1815 | static unsigned int |
|
|
1816 | ev_linux_version (void) |
|
|
1817 | { |
|
|
1818 | #ifdef __linux |
|
|
1819 | unsigned int v = 0; |
|
|
1820 | struct utsname buf; |
|
|
1821 | int i; |
|
|
1822 | char *p = buf.release; |
|
|
1823 | |
|
|
1824 | if (uname (&buf)) |
|
|
1825 | return 0; |
|
|
1826 | |
|
|
1827 | for (i = 3+1; --i; ) |
|
|
1828 | { |
|
|
1829 | unsigned int c = 0; |
|
|
1830 | |
|
|
1831 | for (;;) |
|
|
1832 | { |
|
|
1833 | if (*p >= '0' && *p <= '9') |
|
|
1834 | c = c * 10 + *p++ - '0'; |
|
|
1835 | else |
|
|
1836 | { |
|
|
1837 | p += *p == '.'; |
|
|
1838 | break; |
|
|
1839 | } |
|
|
1840 | } |
|
|
1841 | |
|
|
1842 | v = (v << 8) | c; |
|
|
1843 | } |
|
|
1844 | |
|
|
1845 | return v; |
|
|
1846 | #else |
|
|
1847 | return 0; |
|
|
1848 | #endif |
|
|
1849 | } |
|
|
1850 | |
|
|
1851 | /*****************************************************************************/ |
|
|
1852 | |
|
|
1853 | #if EV_AVOID_STDIO |
|
|
1854 | ecb_noinline ecb_cold |
|
|
1855 | static void |
|
|
1856 | ev_printerr (const char *msg) |
|
|
1857 | { |
|
|
1858 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1859 | } |
|
|
1860 | #endif |
|
|
1861 | |
418 | static void (*syserr_cb)(const char *msg); |
1862 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
419 | |
1863 | |
|
|
1864 | ecb_cold |
420 | void |
1865 | void |
421 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1866 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
422 | { |
1867 | { |
423 | syserr_cb = cb; |
1868 | syserr_cb = cb; |
424 | } |
1869 | } |
425 | |
1870 | |
426 | static void noinline |
1871 | ecb_noinline ecb_cold |
|
|
1872 | static void |
427 | ev_syserr (const char *msg) |
1873 | ev_syserr (const char *msg) |
428 | { |
1874 | { |
429 | if (!msg) |
1875 | if (!msg) |
430 | msg = "(libev) system error"; |
1876 | msg = "(libev) system error"; |
431 | |
1877 | |
432 | if (syserr_cb) |
1878 | if (syserr_cb) |
433 | syserr_cb (msg); |
1879 | syserr_cb (msg); |
434 | else |
1880 | else |
435 | { |
1881 | { |
|
|
1882 | #if EV_AVOID_STDIO |
|
|
1883 | ev_printerr (msg); |
|
|
1884 | ev_printerr (": "); |
|
|
1885 | ev_printerr (strerror (errno)); |
|
|
1886 | ev_printerr ("\n"); |
|
|
1887 | #else |
436 | perror (msg); |
1888 | perror (msg); |
|
|
1889 | #endif |
437 | abort (); |
1890 | abort (); |
438 | } |
1891 | } |
439 | } |
1892 | } |
440 | |
1893 | |
441 | static void * |
1894 | static void * |
442 | ev_realloc_emul (void *ptr, long size) |
1895 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
443 | { |
1896 | { |
444 | /* some systems, notably openbsd and darwin, fail to properly |
1897 | /* some systems, notably openbsd and darwin, fail to properly |
445 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1898 | * implement realloc (x, 0) (as required by both ansi c-89 and |
446 | * the single unix specification, so work around them here. |
1899 | * the single unix specification, so work around them here. |
|
|
1900 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1901 | * despite documenting it otherwise. |
447 | */ |
1902 | */ |
448 | |
1903 | |
449 | if (size) |
1904 | if (size) |
450 | return realloc (ptr, size); |
1905 | return realloc (ptr, size); |
451 | |
1906 | |
452 | free (ptr); |
1907 | free (ptr); |
453 | return 0; |
1908 | return 0; |
454 | } |
1909 | } |
455 | |
1910 | |
456 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1911 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
457 | |
1912 | |
|
|
1913 | ecb_cold |
458 | void |
1914 | void |
459 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1915 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
460 | { |
1916 | { |
461 | alloc = cb; |
1917 | alloc = cb; |
462 | } |
1918 | } |
463 | |
1919 | |
464 | inline_speed void * |
1920 | inline_speed void * |
… | |
… | |
466 | { |
1922 | { |
467 | ptr = alloc (ptr, size); |
1923 | ptr = alloc (ptr, size); |
468 | |
1924 | |
469 | if (!ptr && size) |
1925 | if (!ptr && size) |
470 | { |
1926 | { |
|
|
1927 | #if EV_AVOID_STDIO |
|
|
1928 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1929 | #else |
471 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1930 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1931 | #endif |
472 | abort (); |
1932 | abort (); |
473 | } |
1933 | } |
474 | |
1934 | |
475 | return ptr; |
1935 | return ptr; |
476 | } |
1936 | } |
… | |
… | |
478 | #define ev_malloc(size) ev_realloc (0, (size)) |
1938 | #define ev_malloc(size) ev_realloc (0, (size)) |
479 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1939 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
480 | |
1940 | |
481 | /*****************************************************************************/ |
1941 | /*****************************************************************************/ |
482 | |
1942 | |
|
|
1943 | /* set in reify when reification needed */ |
|
|
1944 | #define EV_ANFD_REIFY 1 |
|
|
1945 | |
|
|
1946 | /* file descriptor info structure */ |
483 | typedef struct |
1947 | typedef struct |
484 | { |
1948 | { |
485 | WL head; |
1949 | WL head; |
486 | unsigned char events; |
1950 | unsigned char events; /* the events watched for */ |
487 | unsigned char reify; |
1951 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
488 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1952 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
489 | unsigned char unused; |
1953 | unsigned char eflags; /* flags field for use by backends */ |
490 | #if EV_USE_EPOLL |
1954 | #if EV_USE_EPOLL |
491 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1955 | unsigned int egen; /* generation counter to counter epoll bugs */ |
492 | #endif |
1956 | #endif |
493 | #if EV_SELECT_IS_WINSOCKET |
1957 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
494 | SOCKET handle; |
1958 | SOCKET handle; |
495 | #endif |
1959 | #endif |
|
|
1960 | #if EV_USE_IOCP |
|
|
1961 | OVERLAPPED or, ow; |
|
|
1962 | #endif |
496 | } ANFD; |
1963 | } ANFD; |
497 | |
1964 | |
|
|
1965 | /* stores the pending event set for a given watcher */ |
498 | typedef struct |
1966 | typedef struct |
499 | { |
1967 | { |
500 | W w; |
1968 | W w; |
501 | int events; |
1969 | int events; /* the pending event set for the given watcher */ |
502 | } ANPENDING; |
1970 | } ANPENDING; |
503 | |
1971 | |
504 | #if EV_USE_INOTIFY |
1972 | #if EV_USE_INOTIFY |
505 | /* hash table entry per inotify-id */ |
1973 | /* hash table entry per inotify-id */ |
506 | typedef struct |
1974 | typedef struct |
… | |
… | |
509 | } ANFS; |
1977 | } ANFS; |
510 | #endif |
1978 | #endif |
511 | |
1979 | |
512 | /* Heap Entry */ |
1980 | /* Heap Entry */ |
513 | #if EV_HEAP_CACHE_AT |
1981 | #if EV_HEAP_CACHE_AT |
|
|
1982 | /* a heap element */ |
514 | typedef struct { |
1983 | typedef struct { |
515 | ev_tstamp at; |
1984 | ev_tstamp at; |
516 | WT w; |
1985 | WT w; |
517 | } ANHE; |
1986 | } ANHE; |
518 | |
1987 | |
519 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
1988 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
520 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
1989 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
521 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
1990 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
522 | #else |
1991 | #else |
|
|
1992 | /* a heap element */ |
523 | typedef WT ANHE; |
1993 | typedef WT ANHE; |
524 | |
1994 | |
525 | #define ANHE_w(he) (he) |
1995 | #define ANHE_w(he) (he) |
526 | #define ANHE_at(he) (he)->at |
1996 | #define ANHE_at(he) (he)->at |
527 | #define ANHE_at_cache(he) |
1997 | #define ANHE_at_cache(he) |
… | |
… | |
538 | #undef VAR |
2008 | #undef VAR |
539 | }; |
2009 | }; |
540 | #include "ev_wrap.h" |
2010 | #include "ev_wrap.h" |
541 | |
2011 | |
542 | static struct ev_loop default_loop_struct; |
2012 | static struct ev_loop default_loop_struct; |
543 | struct ev_loop *ev_default_loop_ptr; |
2013 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
544 | |
2014 | |
545 | #else |
2015 | #else |
546 | |
2016 | |
547 | ev_tstamp ev_rt_now; |
2017 | EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */ |
548 | #define VAR(name,decl) static decl; |
2018 | #define VAR(name,decl) static decl; |
549 | #include "ev_vars.h" |
2019 | #include "ev_vars.h" |
550 | #undef VAR |
2020 | #undef VAR |
551 | |
2021 | |
552 | static int ev_default_loop_ptr; |
2022 | static int ev_default_loop_ptr; |
553 | |
2023 | |
554 | #endif |
2024 | #endif |
555 | |
2025 | |
|
|
2026 | #if EV_FEATURE_API |
|
|
2027 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
|
|
2028 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
2029 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
2030 | #else |
|
|
2031 | # define EV_RELEASE_CB (void)0 |
|
|
2032 | # define EV_ACQUIRE_CB (void)0 |
|
|
2033 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
2034 | #endif |
|
|
2035 | |
|
|
2036 | #define EVBREAK_RECURSE 0x80 |
|
|
2037 | |
556 | /*****************************************************************************/ |
2038 | /*****************************************************************************/ |
557 | |
2039 | |
|
|
2040 | #ifndef EV_HAVE_EV_TIME |
558 | ev_tstamp |
2041 | ev_tstamp |
559 | ev_time (void) |
2042 | ev_time (void) EV_NOEXCEPT |
560 | { |
2043 | { |
561 | #if EV_USE_REALTIME |
2044 | #if EV_USE_REALTIME |
562 | if (expect_true (have_realtime)) |
2045 | if (ecb_expect_true (have_realtime)) |
563 | { |
2046 | { |
564 | struct timespec ts; |
2047 | struct timespec ts; |
565 | clock_gettime (CLOCK_REALTIME, &ts); |
2048 | clock_gettime (CLOCK_REALTIME, &ts); |
566 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2049 | return EV_TS_GET (ts); |
567 | } |
2050 | } |
568 | #endif |
2051 | #endif |
569 | |
2052 | |
|
|
2053 | { |
570 | struct timeval tv; |
2054 | struct timeval tv; |
571 | gettimeofday (&tv, 0); |
2055 | gettimeofday (&tv, 0); |
572 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2056 | return EV_TV_GET (tv); |
|
|
2057 | } |
573 | } |
2058 | } |
|
|
2059 | #endif |
574 | |
2060 | |
575 | inline_size ev_tstamp |
2061 | inline_size ev_tstamp |
576 | get_clock (void) |
2062 | get_clock (void) |
577 | { |
2063 | { |
578 | #if EV_USE_MONOTONIC |
2064 | #if EV_USE_MONOTONIC |
579 | if (expect_true (have_monotonic)) |
2065 | if (ecb_expect_true (have_monotonic)) |
580 | { |
2066 | { |
581 | struct timespec ts; |
2067 | struct timespec ts; |
582 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2068 | clock_gettime (CLOCK_MONOTONIC, &ts); |
583 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2069 | return EV_TS_GET (ts); |
584 | } |
2070 | } |
585 | #endif |
2071 | #endif |
586 | |
2072 | |
587 | return ev_time (); |
2073 | return ev_time (); |
588 | } |
2074 | } |
589 | |
2075 | |
590 | #if EV_MULTIPLICITY |
2076 | #if EV_MULTIPLICITY |
591 | ev_tstamp |
2077 | ev_tstamp |
592 | ev_now (EV_P) |
2078 | ev_now (EV_P) EV_NOEXCEPT |
593 | { |
2079 | { |
594 | return ev_rt_now; |
2080 | return ev_rt_now; |
595 | } |
2081 | } |
596 | #endif |
2082 | #endif |
597 | |
2083 | |
598 | void |
2084 | void |
599 | ev_sleep (ev_tstamp delay) |
2085 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
600 | { |
2086 | { |
601 | if (delay > 0.) |
2087 | if (delay > EV_TS_CONST (0.)) |
602 | { |
2088 | { |
603 | #if EV_USE_NANOSLEEP |
2089 | #if EV_USE_NANOSLEEP |
604 | struct timespec ts; |
2090 | struct timespec ts; |
605 | |
2091 | |
606 | ts.tv_sec = (time_t)delay; |
2092 | EV_TS_SET (ts, delay); |
607 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
608 | |
|
|
609 | nanosleep (&ts, 0); |
2093 | nanosleep (&ts, 0); |
610 | #elif defined(_WIN32) |
2094 | #elif defined _WIN32 |
|
|
2095 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2096 | /* compared to select (µs) or nanosleep (ns) */ |
611 | Sleep ((unsigned long)(delay * 1e3)); |
2097 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
612 | #else |
2098 | #else |
613 | struct timeval tv; |
2099 | struct timeval tv; |
614 | |
2100 | |
615 | tv.tv_sec = (time_t)delay; |
|
|
616 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
617 | |
|
|
618 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2101 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
619 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
2102 | /* something not guaranteed by newer posix versions, but guaranteed */ |
620 | /* by older ones */ |
2103 | /* by older ones */ |
|
|
2104 | EV_TV_SET (tv, delay); |
621 | select (0, 0, 0, 0, &tv); |
2105 | select (0, 0, 0, 0, &tv); |
622 | #endif |
2106 | #endif |
623 | } |
2107 | } |
624 | } |
2108 | } |
625 | |
2109 | |
626 | /*****************************************************************************/ |
2110 | /*****************************************************************************/ |
627 | |
2111 | |
628 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
2112 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
629 | |
2113 | |
|
|
2114 | /* find a suitable new size for the given array, */ |
|
|
2115 | /* hopefully by rounding to a nice-to-malloc size */ |
630 | inline_size int |
2116 | inline_size int |
631 | array_nextsize (int elem, int cur, int cnt) |
2117 | array_nextsize (int elem, int cur, int cnt) |
632 | { |
2118 | { |
633 | int ncur = cur + 1; |
2119 | int ncur = cur + 1; |
634 | |
2120 | |
635 | do |
2121 | do |
636 | ncur <<= 1; |
2122 | ncur <<= 1; |
637 | while (cnt > ncur); |
2123 | while (cnt > ncur); |
638 | |
2124 | |
639 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2125 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
640 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2126 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
641 | { |
2127 | { |
642 | ncur *= elem; |
2128 | ncur *= elem; |
643 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2129 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
644 | ncur = ncur - sizeof (void *) * 4; |
2130 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
646 | } |
2132 | } |
647 | |
2133 | |
648 | return ncur; |
2134 | return ncur; |
649 | } |
2135 | } |
650 | |
2136 | |
651 | static noinline void * |
2137 | ecb_noinline ecb_cold |
|
|
2138 | static void * |
652 | array_realloc (int elem, void *base, int *cur, int cnt) |
2139 | array_realloc (int elem, void *base, int *cur, int cnt) |
653 | { |
2140 | { |
654 | *cur = array_nextsize (elem, *cur, cnt); |
2141 | *cur = array_nextsize (elem, *cur, cnt); |
655 | return ev_realloc (base, elem * *cur); |
2142 | return ev_realloc (base, elem * *cur); |
656 | } |
2143 | } |
657 | |
2144 | |
|
|
2145 | #define array_needsize_noinit(base,offset,count) |
|
|
2146 | |
658 | #define array_init_zero(base,count) \ |
2147 | #define array_needsize_zerofill(base,offset,count) \ |
659 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2148 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
660 | |
2149 | |
661 | #define array_needsize(type,base,cur,cnt,init) \ |
2150 | #define array_needsize(type,base,cur,cnt,init) \ |
662 | if (expect_false ((cnt) > (cur))) \ |
2151 | if (ecb_expect_false ((cnt) > (cur))) \ |
663 | { \ |
2152 | { \ |
664 | int ocur_ = (cur); \ |
2153 | ecb_unused int ocur_ = (cur); \ |
665 | (base) = (type *)array_realloc \ |
2154 | (base) = (type *)array_realloc \ |
666 | (sizeof (type), (base), &(cur), (cnt)); \ |
2155 | (sizeof (type), (base), &(cur), (cnt)); \ |
667 | init ((base) + (ocur_), (cur) - ocur_); \ |
2156 | init ((base), ocur_, ((cur) - ocur_)); \ |
668 | } |
2157 | } |
669 | |
2158 | |
670 | #if 0 |
2159 | #if 0 |
671 | #define array_slim(type,stem) \ |
2160 | #define array_slim(type,stem) \ |
672 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2161 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
680 | #define array_free(stem, idx) \ |
2169 | #define array_free(stem, idx) \ |
681 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2170 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
682 | |
2171 | |
683 | /*****************************************************************************/ |
2172 | /*****************************************************************************/ |
684 | |
2173 | |
685 | void noinline |
2174 | /* dummy callback for pending events */ |
|
|
2175 | ecb_noinline |
|
|
2176 | static void |
|
|
2177 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
2178 | { |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | ecb_noinline |
|
|
2182 | void |
686 | ev_feed_event (EV_P_ void *w, int revents) |
2183 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
687 | { |
2184 | { |
688 | W w_ = (W)w; |
2185 | W w_ = (W)w; |
689 | int pri = ABSPRI (w_); |
2186 | int pri = ABSPRI (w_); |
690 | |
2187 | |
691 | if (expect_false (w_->pending)) |
2188 | if (ecb_expect_false (w_->pending)) |
692 | pendings [pri][w_->pending - 1].events |= revents; |
2189 | pendings [pri][w_->pending - 1].events |= revents; |
693 | else |
2190 | else |
694 | { |
2191 | { |
695 | w_->pending = ++pendingcnt [pri]; |
2192 | w_->pending = ++pendingcnt [pri]; |
696 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2193 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
697 | pendings [pri][w_->pending - 1].w = w_; |
2194 | pendings [pri][w_->pending - 1].w = w_; |
698 | pendings [pri][w_->pending - 1].events = revents; |
2195 | pendings [pri][w_->pending - 1].events = revents; |
699 | } |
2196 | } |
|
|
2197 | |
|
|
2198 | pendingpri = NUMPRI - 1; |
700 | } |
2199 | } |
701 | |
2200 | |
702 | inline_speed void |
2201 | inline_speed void |
703 | feed_reverse (EV_P_ W w) |
2202 | feed_reverse (EV_P_ W w) |
704 | { |
2203 | { |
705 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2204 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
706 | rfeeds [rfeedcnt++] = w; |
2205 | rfeeds [rfeedcnt++] = w; |
707 | } |
2206 | } |
708 | |
2207 | |
709 | inline_size void |
2208 | inline_size void |
710 | feed_reverse_done (EV_P_ int revents) |
2209 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
724 | } |
2223 | } |
725 | |
2224 | |
726 | /*****************************************************************************/ |
2225 | /*****************************************************************************/ |
727 | |
2226 | |
728 | inline_speed void |
2227 | inline_speed void |
729 | fd_event (EV_P_ int fd, int revents) |
2228 | fd_event_nocheck (EV_P_ int fd, int revents) |
730 | { |
2229 | { |
731 | ANFD *anfd = anfds + fd; |
2230 | ANFD *anfd = anfds + fd; |
732 | ev_io *w; |
2231 | ev_io *w; |
733 | |
2232 | |
734 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2233 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
738 | if (ev) |
2237 | if (ev) |
739 | ev_feed_event (EV_A_ (W)w, ev); |
2238 | ev_feed_event (EV_A_ (W)w, ev); |
740 | } |
2239 | } |
741 | } |
2240 | } |
742 | |
2241 | |
743 | void |
2242 | /* do not submit kernel events for fds that have reify set */ |
|
|
2243 | /* because that means they changed while we were polling for new events */ |
|
|
2244 | inline_speed void |
744 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2245 | fd_event (EV_P_ int fd, int revents) |
|
|
2246 | { |
|
|
2247 | ANFD *anfd = anfds + fd; |
|
|
2248 | |
|
|
2249 | if (ecb_expect_true (!anfd->reify)) |
|
|
2250 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
2251 | } |
|
|
2252 | |
|
|
2253 | void |
|
|
2254 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
745 | { |
2255 | { |
746 | if (fd >= 0 && fd < anfdmax) |
2256 | if (fd >= 0 && fd < anfdmax) |
747 | fd_event (EV_A_ fd, revents); |
2257 | fd_event_nocheck (EV_A_ fd, revents); |
748 | } |
2258 | } |
749 | |
2259 | |
|
|
2260 | /* make sure the external fd watch events are in-sync */ |
|
|
2261 | /* with the kernel/libev internal state */ |
750 | inline_size void |
2262 | inline_size void |
751 | fd_reify (EV_P) |
2263 | fd_reify (EV_P) |
752 | { |
2264 | { |
753 | int i; |
2265 | int i; |
|
|
2266 | |
|
|
2267 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2268 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2269 | { |
|
|
2270 | int fd = fdchanges [i]; |
|
|
2271 | ANFD *anfd = anfds + fd; |
|
|
2272 | |
|
|
2273 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2274 | { |
|
|
2275 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2276 | |
|
|
2277 | if (handle != anfd->handle) |
|
|
2278 | { |
|
|
2279 | unsigned long arg; |
|
|
2280 | |
|
|
2281 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2282 | |
|
|
2283 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2284 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2285 | anfd->events = 0; |
|
|
2286 | anfd->handle = handle; |
|
|
2287 | } |
|
|
2288 | } |
|
|
2289 | } |
|
|
2290 | #endif |
754 | |
2291 | |
755 | for (i = 0; i < fdchangecnt; ++i) |
2292 | for (i = 0; i < fdchangecnt; ++i) |
756 | { |
2293 | { |
757 | int fd = fdchanges [i]; |
2294 | int fd = fdchanges [i]; |
758 | ANFD *anfd = anfds + fd; |
2295 | ANFD *anfd = anfds + fd; |
759 | ev_io *w; |
2296 | ev_io *w; |
760 | |
2297 | |
761 | unsigned char events = 0; |
2298 | unsigned char o_events = anfd->events; |
|
|
2299 | unsigned char o_reify = anfd->reify; |
762 | |
2300 | |
763 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2301 | anfd->reify = 0; |
764 | events |= (unsigned char)w->events; |
|
|
765 | |
2302 | |
766 | #if EV_SELECT_IS_WINSOCKET |
2303 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
767 | if (events) |
|
|
768 | { |
2304 | { |
769 | unsigned long arg; |
2305 | anfd->events = 0; |
770 | #ifdef EV_FD_TO_WIN32_HANDLE |
2306 | |
771 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
2307 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
772 | #else |
2308 | anfd->events |= (unsigned char)w->events; |
773 | anfd->handle = _get_osfhandle (fd); |
2309 | |
774 | #endif |
2310 | if (o_events != anfd->events) |
775 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
2311 | o_reify = EV__IOFDSET; /* actually |= */ |
776 | } |
2312 | } |
777 | #endif |
|
|
778 | |
2313 | |
779 | { |
2314 | if (o_reify & EV__IOFDSET) |
780 | unsigned char o_events = anfd->events; |
|
|
781 | unsigned char o_reify = anfd->reify; |
|
|
782 | |
|
|
783 | anfd->reify = 0; |
|
|
784 | anfd->events = events; |
|
|
785 | |
|
|
786 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
787 | backend_modify (EV_A_ fd, o_events, events); |
2315 | backend_modify (EV_A_ fd, o_events, anfd->events); |
788 | } |
|
|
789 | } |
2316 | } |
790 | |
2317 | |
791 | fdchangecnt = 0; |
2318 | fdchangecnt = 0; |
792 | } |
2319 | } |
793 | |
2320 | |
|
|
2321 | /* something about the given fd changed */ |
794 | inline_size void |
2322 | inline_size |
|
|
2323 | void |
795 | fd_change (EV_P_ int fd, int flags) |
2324 | fd_change (EV_P_ int fd, int flags) |
796 | { |
2325 | { |
797 | unsigned char reify = anfds [fd].reify; |
2326 | unsigned char reify = anfds [fd].reify; |
798 | anfds [fd].reify |= flags; |
2327 | anfds [fd].reify |= flags; |
799 | |
2328 | |
800 | if (expect_true (!reify)) |
2329 | if (ecb_expect_true (!reify)) |
801 | { |
2330 | { |
802 | ++fdchangecnt; |
2331 | ++fdchangecnt; |
803 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2332 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
804 | fdchanges [fdchangecnt - 1] = fd; |
2333 | fdchanges [fdchangecnt - 1] = fd; |
805 | } |
2334 | } |
806 | } |
2335 | } |
807 | |
2336 | |
|
|
2337 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
808 | inline_speed void |
2338 | inline_speed ecb_cold void |
809 | fd_kill (EV_P_ int fd) |
2339 | fd_kill (EV_P_ int fd) |
810 | { |
2340 | { |
811 | ev_io *w; |
2341 | ev_io *w; |
812 | |
2342 | |
813 | while ((w = (ev_io *)anfds [fd].head)) |
2343 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
815 | ev_io_stop (EV_A_ w); |
2345 | ev_io_stop (EV_A_ w); |
816 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2346 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
817 | } |
2347 | } |
818 | } |
2348 | } |
819 | |
2349 | |
|
|
2350 | /* check whether the given fd is actually valid, for error recovery */ |
820 | inline_size int |
2351 | inline_size ecb_cold int |
821 | fd_valid (int fd) |
2352 | fd_valid (int fd) |
822 | { |
2353 | { |
823 | #ifdef _WIN32 |
2354 | #ifdef _WIN32 |
824 | return _get_osfhandle (fd) != -1; |
2355 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
825 | #else |
2356 | #else |
826 | return fcntl (fd, F_GETFD) != -1; |
2357 | return fcntl (fd, F_GETFD) != -1; |
827 | #endif |
2358 | #endif |
828 | } |
2359 | } |
829 | |
2360 | |
830 | /* called on EBADF to verify fds */ |
2361 | /* called on EBADF to verify fds */ |
831 | static void noinline |
2362 | ecb_noinline ecb_cold |
|
|
2363 | static void |
832 | fd_ebadf (EV_P) |
2364 | fd_ebadf (EV_P) |
833 | { |
2365 | { |
834 | int fd; |
2366 | int fd; |
835 | |
2367 | |
836 | for (fd = 0; fd < anfdmax; ++fd) |
2368 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
838 | if (!fd_valid (fd) && errno == EBADF) |
2370 | if (!fd_valid (fd) && errno == EBADF) |
839 | fd_kill (EV_A_ fd); |
2371 | fd_kill (EV_A_ fd); |
840 | } |
2372 | } |
841 | |
2373 | |
842 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2374 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
843 | static void noinline |
2375 | ecb_noinline ecb_cold |
|
|
2376 | static void |
844 | fd_enomem (EV_P) |
2377 | fd_enomem (EV_P) |
845 | { |
2378 | { |
846 | int fd; |
2379 | int fd; |
847 | |
2380 | |
848 | for (fd = anfdmax; fd--; ) |
2381 | for (fd = anfdmax; fd--; ) |
849 | if (anfds [fd].events) |
2382 | if (anfds [fd].events) |
850 | { |
2383 | { |
851 | fd_kill (EV_A_ fd); |
2384 | fd_kill (EV_A_ fd); |
852 | return; |
2385 | break; |
853 | } |
2386 | } |
854 | } |
2387 | } |
855 | |
2388 | |
856 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2389 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
857 | static void noinline |
2390 | ecb_noinline |
|
|
2391 | static void |
858 | fd_rearm_all (EV_P) |
2392 | fd_rearm_all (EV_P) |
859 | { |
2393 | { |
860 | int fd; |
2394 | int fd; |
861 | |
2395 | |
862 | for (fd = 0; fd < anfdmax; ++fd) |
2396 | for (fd = 0; fd < anfdmax; ++fd) |
863 | if (anfds [fd].events) |
2397 | if (anfds [fd].events) |
864 | { |
2398 | { |
865 | anfds [fd].events = 0; |
2399 | anfds [fd].events = 0; |
866 | anfds [fd].emask = 0; |
2400 | anfds [fd].emask = 0; |
867 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
2401 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
868 | } |
2402 | } |
869 | } |
2403 | } |
870 | |
2404 | |
|
|
2405 | /* used to prepare libev internal fd's */ |
|
|
2406 | /* this is not fork-safe */ |
|
|
2407 | inline_speed void |
|
|
2408 | fd_intern (int fd) |
|
|
2409 | { |
|
|
2410 | #ifdef _WIN32 |
|
|
2411 | unsigned long arg = 1; |
|
|
2412 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
2413 | #else |
|
|
2414 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
2415 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
2416 | #endif |
|
|
2417 | } |
|
|
2418 | |
871 | /*****************************************************************************/ |
2419 | /*****************************************************************************/ |
872 | |
2420 | |
873 | /* |
2421 | /* |
874 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2422 | * the heap functions want a real array index. array index 0 is guaranteed to not |
875 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2423 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
876 | * the branching factor of the d-tree. |
2424 | * the branching factor of the d-tree. |
877 | */ |
2425 | */ |
878 | |
2426 | |
879 | /* |
2427 | /* |
… | |
… | |
901 | ev_tstamp minat; |
2449 | ev_tstamp minat; |
902 | ANHE *minpos; |
2450 | ANHE *minpos; |
903 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2451 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
904 | |
2452 | |
905 | /* find minimum child */ |
2453 | /* find minimum child */ |
906 | if (expect_true (pos + DHEAP - 1 < E)) |
2454 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
907 | { |
2455 | { |
908 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2456 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
909 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2457 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
910 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2458 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
911 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2459 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
912 | } |
2460 | } |
913 | else if (pos < E) |
2461 | else if (pos < E) |
914 | { |
2462 | { |
915 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2463 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
916 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2464 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
917 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2465 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
918 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2466 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
919 | } |
2467 | } |
920 | else |
2468 | else |
921 | break; |
2469 | break; |
922 | |
2470 | |
923 | if (ANHE_at (he) <= minat) |
2471 | if (ANHE_at (he) <= minat) |
… | |
… | |
931 | |
2479 | |
932 | heap [k] = he; |
2480 | heap [k] = he; |
933 | ev_active (ANHE_w (he)) = k; |
2481 | ev_active (ANHE_w (he)) = k; |
934 | } |
2482 | } |
935 | |
2483 | |
936 | #else /* 4HEAP */ |
2484 | #else /* not 4HEAP */ |
937 | |
2485 | |
938 | #define HEAP0 1 |
2486 | #define HEAP0 1 |
939 | #define HPARENT(k) ((k) >> 1) |
2487 | #define HPARENT(k) ((k) >> 1) |
940 | #define UPHEAP_DONE(p,k) (!(p)) |
2488 | #define UPHEAP_DONE(p,k) (!(p)) |
941 | |
2489 | |
… | |
… | |
947 | |
2495 | |
948 | for (;;) |
2496 | for (;;) |
949 | { |
2497 | { |
950 | int c = k << 1; |
2498 | int c = k << 1; |
951 | |
2499 | |
952 | if (c > N + HEAP0 - 1) |
2500 | if (c >= N + HEAP0) |
953 | break; |
2501 | break; |
954 | |
2502 | |
955 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
2503 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
956 | ? 1 : 0; |
2504 | ? 1 : 0; |
957 | |
2505 | |
… | |
… | |
989 | |
2537 | |
990 | heap [k] = he; |
2538 | heap [k] = he; |
991 | ev_active (ANHE_w (he)) = k; |
2539 | ev_active (ANHE_w (he)) = k; |
992 | } |
2540 | } |
993 | |
2541 | |
|
|
2542 | /* move an element suitably so it is in a correct place */ |
994 | inline_size void |
2543 | inline_size void |
995 | adjustheap (ANHE *heap, int N, int k) |
2544 | adjustheap (ANHE *heap, int N, int k) |
996 | { |
2545 | { |
997 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
2546 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
998 | upheap (heap, k); |
2547 | upheap (heap, k); |
999 | else |
2548 | else |
1000 | downheap (heap, N, k); |
2549 | downheap (heap, N, k); |
1001 | } |
2550 | } |
1002 | |
2551 | |
… | |
… | |
1012 | upheap (heap, i + HEAP0); |
2561 | upheap (heap, i + HEAP0); |
1013 | } |
2562 | } |
1014 | |
2563 | |
1015 | /*****************************************************************************/ |
2564 | /*****************************************************************************/ |
1016 | |
2565 | |
|
|
2566 | /* associate signal watchers to a signal signal */ |
1017 | typedef struct |
2567 | typedef struct |
1018 | { |
2568 | { |
|
|
2569 | EV_ATOMIC_T pending; |
|
|
2570 | #if EV_MULTIPLICITY |
|
|
2571 | EV_P; |
|
|
2572 | #endif |
1019 | WL head; |
2573 | WL head; |
1020 | EV_ATOMIC_T gotsig; |
|
|
1021 | } ANSIG; |
2574 | } ANSIG; |
1022 | |
2575 | |
1023 | static ANSIG *signals; |
2576 | static ANSIG signals [EV_NSIG - 1]; |
1024 | static int signalmax; |
|
|
1025 | |
|
|
1026 | static EV_ATOMIC_T gotsig; |
|
|
1027 | |
2577 | |
1028 | /*****************************************************************************/ |
2578 | /*****************************************************************************/ |
1029 | |
2579 | |
|
|
2580 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2581 | |
|
|
2582 | ecb_noinline ecb_cold |
|
|
2583 | static void |
|
|
2584 | evpipe_init (EV_P) |
|
|
2585 | { |
|
|
2586 | if (!ev_is_active (&pipe_w)) |
|
|
2587 | { |
|
|
2588 | int fds [2]; |
|
|
2589 | |
|
|
2590 | # if EV_USE_EVENTFD |
|
|
2591 | fds [0] = -1; |
|
|
2592 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2593 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2594 | fds [1] = eventfd (0, 0); |
|
|
2595 | |
|
|
2596 | if (fds [1] < 0) |
|
|
2597 | # endif |
|
|
2598 | { |
|
|
2599 | while (pipe (fds)) |
|
|
2600 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2601 | |
|
|
2602 | fd_intern (fds [0]); |
|
|
2603 | } |
|
|
2604 | |
|
|
2605 | evpipe [0] = fds [0]; |
|
|
2606 | |
|
|
2607 | if (evpipe [1] < 0) |
|
|
2608 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2609 | else |
|
|
2610 | { |
|
|
2611 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2612 | /* so that evpipe_write can always rely on its value. */ |
|
|
2613 | /* this branch does not do anything sensible on windows, */ |
|
|
2614 | /* so must not be executed on windows */ |
|
|
2615 | |
|
|
2616 | dup2 (fds [1], evpipe [1]); |
|
|
2617 | close (fds [1]); |
|
|
2618 | } |
|
|
2619 | |
|
|
2620 | fd_intern (evpipe [1]); |
|
|
2621 | |
|
|
2622 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2623 | ev_io_start (EV_A_ &pipe_w); |
|
|
2624 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2625 | } |
|
|
2626 | } |
|
|
2627 | |
1030 | inline_speed void |
2628 | inline_speed void |
1031 | fd_intern (int fd) |
2629 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1032 | { |
2630 | { |
1033 | #ifdef _WIN32 |
2631 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1034 | unsigned long arg = 1; |
|
|
1035 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1036 | #else |
|
|
1037 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1038 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1039 | #endif |
|
|
1040 | } |
|
|
1041 | |
2632 | |
1042 | static void noinline |
2633 | if (ecb_expect_true (*flag)) |
1043 | evpipe_init (EV_P) |
2634 | return; |
1044 | { |
2635 | |
1045 | if (!ev_is_active (&pipeev)) |
2636 | *flag = 1; |
|
|
2637 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2638 | |
|
|
2639 | pipe_write_skipped = 1; |
|
|
2640 | |
|
|
2641 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2642 | |
|
|
2643 | if (pipe_write_wanted) |
1046 | { |
2644 | { |
|
|
2645 | int old_errno; |
|
|
2646 | |
|
|
2647 | pipe_write_skipped = 0; |
|
|
2648 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2649 | |
|
|
2650 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2651 | |
1047 | #if EV_USE_EVENTFD |
2652 | #if EV_USE_EVENTFD |
1048 | if ((evfd = eventfd (0, 0)) >= 0) |
2653 | if (evpipe [0] < 0) |
1049 | { |
2654 | { |
1050 | evpipe [0] = -1; |
2655 | uint64_t counter = 1; |
1051 | fd_intern (evfd); |
2656 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1052 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1053 | } |
2657 | } |
1054 | else |
2658 | else |
1055 | #endif |
2659 | #endif |
1056 | { |
2660 | { |
1057 | while (pipe (evpipe)) |
2661 | #ifdef _WIN32 |
1058 | ev_syserr ("(libev) error creating signal/async pipe"); |
2662 | WSABUF buf; |
1059 | |
2663 | DWORD sent; |
1060 | fd_intern (evpipe [0]); |
2664 | buf.buf = (char *)&buf; |
1061 | fd_intern (evpipe [1]); |
2665 | buf.len = 1; |
1062 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
2666 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2667 | #else |
|
|
2668 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2669 | #endif |
1063 | } |
2670 | } |
1064 | |
2671 | |
1065 | ev_io_start (EV_A_ &pipeev); |
2672 | errno = old_errno; |
1066 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1067 | } |
|
|
1068 | } |
|
|
1069 | |
|
|
1070 | inline_size void |
|
|
1071 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1072 | { |
|
|
1073 | if (!*flag) |
|
|
1074 | { |
2673 | } |
1075 | int old_errno = errno; /* save errno because write might clobber it */ |
2674 | } |
1076 | |
2675 | |
1077 | *flag = 1; |
2676 | /* called whenever the libev signal pipe */ |
|
|
2677 | /* got some events (signal, async) */ |
|
|
2678 | static void |
|
|
2679 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
2680 | { |
|
|
2681 | int i; |
1078 | |
2682 | |
|
|
2683 | if (revents & EV_READ) |
|
|
2684 | { |
1079 | #if EV_USE_EVENTFD |
2685 | #if EV_USE_EVENTFD |
1080 | if (evfd >= 0) |
2686 | if (evpipe [0] < 0) |
1081 | { |
2687 | { |
1082 | uint64_t counter = 1; |
2688 | uint64_t counter; |
1083 | write (evfd, &counter, sizeof (uint64_t)); |
2689 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1084 | } |
2690 | } |
1085 | else |
2691 | else |
1086 | #endif |
2692 | #endif |
1087 | write (evpipe [1], &old_errno, 1); |
2693 | { |
1088 | |
|
|
1089 | errno = old_errno; |
|
|
1090 | } |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | static void |
|
|
1094 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1095 | { |
|
|
1096 | #if EV_USE_EVENTFD |
|
|
1097 | if (evfd >= 0) |
|
|
1098 | { |
|
|
1099 | uint64_t counter; |
|
|
1100 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1101 | } |
|
|
1102 | else |
|
|
1103 | #endif |
|
|
1104 | { |
|
|
1105 | char dummy; |
2694 | char dummy[4]; |
|
|
2695 | #ifdef _WIN32 |
|
|
2696 | WSABUF buf; |
|
|
2697 | DWORD recvd; |
|
|
2698 | DWORD flags = 0; |
|
|
2699 | buf.buf = dummy; |
|
|
2700 | buf.len = sizeof (dummy); |
|
|
2701 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2702 | #else |
1106 | read (evpipe [0], &dummy, 1); |
2703 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2704 | #endif |
|
|
2705 | } |
|
|
2706 | } |
|
|
2707 | |
|
|
2708 | pipe_write_skipped = 0; |
|
|
2709 | |
|
|
2710 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2711 | |
|
|
2712 | #if EV_SIGNAL_ENABLE |
|
|
2713 | if (sig_pending) |
1107 | } |
2714 | { |
|
|
2715 | sig_pending = 0; |
1108 | |
2716 | |
1109 | if (gotsig && ev_is_default_loop (EV_A)) |
2717 | ECB_MEMORY_FENCE; |
1110 | { |
|
|
1111 | int signum; |
|
|
1112 | gotsig = 0; |
|
|
1113 | |
2718 | |
1114 | for (signum = signalmax; signum--; ) |
2719 | for (i = EV_NSIG - 1; i--; ) |
1115 | if (signals [signum].gotsig) |
2720 | if (ecb_expect_false (signals [i].pending)) |
1116 | ev_feed_signal_event (EV_A_ signum + 1); |
2721 | ev_feed_signal_event (EV_A_ i + 1); |
1117 | } |
2722 | } |
|
|
2723 | #endif |
1118 | |
2724 | |
1119 | #if EV_ASYNC_ENABLE |
2725 | #if EV_ASYNC_ENABLE |
1120 | if (gotasync) |
2726 | if (async_pending) |
1121 | { |
2727 | { |
1122 | int i; |
2728 | async_pending = 0; |
1123 | gotasync = 0; |
2729 | |
|
|
2730 | ECB_MEMORY_FENCE; |
1124 | |
2731 | |
1125 | for (i = asynccnt; i--; ) |
2732 | for (i = asynccnt; i--; ) |
1126 | if (asyncs [i]->sent) |
2733 | if (asyncs [i]->sent) |
1127 | { |
2734 | { |
1128 | asyncs [i]->sent = 0; |
2735 | asyncs [i]->sent = 0; |
|
|
2736 | ECB_MEMORY_FENCE_RELEASE; |
1129 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2737 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1130 | } |
2738 | } |
1131 | } |
2739 | } |
1132 | #endif |
2740 | #endif |
1133 | } |
2741 | } |
1134 | |
2742 | |
1135 | /*****************************************************************************/ |
2743 | /*****************************************************************************/ |
1136 | |
2744 | |
|
|
2745 | void |
|
|
2746 | ev_feed_signal (int signum) EV_NOEXCEPT |
|
|
2747 | { |
|
|
2748 | #if EV_MULTIPLICITY |
|
|
2749 | EV_P; |
|
|
2750 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2751 | EV_A = signals [signum - 1].loop; |
|
|
2752 | |
|
|
2753 | if (!EV_A) |
|
|
2754 | return; |
|
|
2755 | #endif |
|
|
2756 | |
|
|
2757 | signals [signum - 1].pending = 1; |
|
|
2758 | evpipe_write (EV_A_ &sig_pending); |
|
|
2759 | } |
|
|
2760 | |
1137 | static void |
2761 | static void |
1138 | ev_sighandler (int signum) |
2762 | ev_sighandler (int signum) |
1139 | { |
2763 | { |
|
|
2764 | #ifdef _WIN32 |
|
|
2765 | signal (signum, ev_sighandler); |
|
|
2766 | #endif |
|
|
2767 | |
|
|
2768 | ev_feed_signal (signum); |
|
|
2769 | } |
|
|
2770 | |
|
|
2771 | ecb_noinline |
|
|
2772 | void |
|
|
2773 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
|
|
2774 | { |
|
|
2775 | WL w; |
|
|
2776 | |
|
|
2777 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
|
|
2778 | return; |
|
|
2779 | |
|
|
2780 | --signum; |
|
|
2781 | |
1140 | #if EV_MULTIPLICITY |
2782 | #if EV_MULTIPLICITY |
1141 | struct ev_loop *loop = &default_loop_struct; |
2783 | /* it is permissible to try to feed a signal to the wrong loop */ |
1142 | #endif |
2784 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1143 | |
2785 | |
1144 | #if _WIN32 |
2786 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1145 | signal (signum, ev_sighandler); |
|
|
1146 | #endif |
|
|
1147 | |
|
|
1148 | signals [signum - 1].gotsig = 1; |
|
|
1149 | evpipe_write (EV_A_ &gotsig); |
|
|
1150 | } |
|
|
1151 | |
|
|
1152 | void noinline |
|
|
1153 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1154 | { |
|
|
1155 | WL w; |
|
|
1156 | |
|
|
1157 | #if EV_MULTIPLICITY |
|
|
1158 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1159 | #endif |
|
|
1160 | |
|
|
1161 | --signum; |
|
|
1162 | |
|
|
1163 | if (signum < 0 || signum >= signalmax) |
|
|
1164 | return; |
2787 | return; |
|
|
2788 | #endif |
1165 | |
2789 | |
1166 | signals [signum].gotsig = 0; |
2790 | signals [signum].pending = 0; |
|
|
2791 | ECB_MEMORY_FENCE_RELEASE; |
1167 | |
2792 | |
1168 | for (w = signals [signum].head; w; w = w->next) |
2793 | for (w = signals [signum].head; w; w = w->next) |
1169 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2794 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1170 | } |
2795 | } |
1171 | |
2796 | |
|
|
2797 | #if EV_USE_SIGNALFD |
|
|
2798 | static void |
|
|
2799 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2800 | { |
|
|
2801 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2802 | |
|
|
2803 | for (;;) |
|
|
2804 | { |
|
|
2805 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2806 | |
|
|
2807 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2808 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2809 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2810 | |
|
|
2811 | if (res < (ssize_t)sizeof (si)) |
|
|
2812 | break; |
|
|
2813 | } |
|
|
2814 | } |
|
|
2815 | #endif |
|
|
2816 | |
|
|
2817 | #endif |
|
|
2818 | |
1172 | /*****************************************************************************/ |
2819 | /*****************************************************************************/ |
1173 | |
2820 | |
|
|
2821 | #if EV_CHILD_ENABLE |
1174 | static WL childs [EV_PID_HASHSIZE]; |
2822 | static WL childs [EV_PID_HASHSIZE]; |
1175 | |
|
|
1176 | #ifndef _WIN32 |
|
|
1177 | |
2823 | |
1178 | static ev_signal childev; |
2824 | static ev_signal childev; |
1179 | |
2825 | |
1180 | #ifndef WIFCONTINUED |
2826 | #ifndef WIFCONTINUED |
1181 | # define WIFCONTINUED(status) 0 |
2827 | # define WIFCONTINUED(status) 0 |
1182 | #endif |
2828 | #endif |
1183 | |
2829 | |
|
|
2830 | /* handle a single child status event */ |
1184 | inline_speed void |
2831 | inline_speed void |
1185 | child_reap (EV_P_ int chain, int pid, int status) |
2832 | child_reap (EV_P_ int chain, int pid, int status) |
1186 | { |
2833 | { |
1187 | ev_child *w; |
2834 | ev_child *w; |
1188 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2835 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1189 | |
2836 | |
1190 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2837 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1191 | { |
2838 | { |
1192 | if ((w->pid == pid || !w->pid) |
2839 | if ((w->pid == pid || !w->pid) |
1193 | && (!traced || (w->flags & 1))) |
2840 | && (!traced || (w->flags & 1))) |
1194 | { |
2841 | { |
1195 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2842 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1202 | |
2849 | |
1203 | #ifndef WCONTINUED |
2850 | #ifndef WCONTINUED |
1204 | # define WCONTINUED 0 |
2851 | # define WCONTINUED 0 |
1205 | #endif |
2852 | #endif |
1206 | |
2853 | |
|
|
2854 | /* called on sigchld etc., calls waitpid */ |
1207 | static void |
2855 | static void |
1208 | childcb (EV_P_ ev_signal *sw, int revents) |
2856 | childcb (EV_P_ ev_signal *sw, int revents) |
1209 | { |
2857 | { |
1210 | int pid, status; |
2858 | int pid, status; |
1211 | |
2859 | |
… | |
… | |
1219 | /* make sure we are called again until all children have been reaped */ |
2867 | /* make sure we are called again until all children have been reaped */ |
1220 | /* we need to do it this way so that the callback gets called before we continue */ |
2868 | /* we need to do it this way so that the callback gets called before we continue */ |
1221 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2869 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1222 | |
2870 | |
1223 | child_reap (EV_A_ pid, pid, status); |
2871 | child_reap (EV_A_ pid, pid, status); |
1224 | if (EV_PID_HASHSIZE > 1) |
2872 | if ((EV_PID_HASHSIZE) > 1) |
1225 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2873 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1226 | } |
2874 | } |
1227 | |
2875 | |
1228 | #endif |
2876 | #endif |
1229 | |
2877 | |
1230 | /*****************************************************************************/ |
2878 | /*****************************************************************************/ |
1231 | |
2879 | |
|
|
2880 | #if EV_USE_TIMERFD |
|
|
2881 | |
|
|
2882 | static void periodics_reschedule (EV_P); |
|
|
2883 | |
|
|
2884 | static void |
|
|
2885 | timerfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2886 | { |
|
|
2887 | struct itimerspec its = { 0 }; |
|
|
2888 | |
|
|
2889 | /* since we can't easily come zup with a (portable) maximum value of time_t, |
|
|
2890 | * we wake up once per month, which hopefully is rare enough to not |
|
|
2891 | * be a problem. */ |
|
|
2892 | its.it_value.tv_sec = ev_rt_now + 86400 * 30; |
|
|
2893 | timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0); |
|
|
2894 | |
|
|
2895 | ev_rt_now = ev_time (); |
|
|
2896 | /* periodics_reschedule only needs ev_rt_now */ |
|
|
2897 | /* but maybe in the future we want the full treatment. */ |
|
|
2898 | /* |
|
|
2899 | now_floor = EV_TS_CONST (0.); |
|
|
2900 | time_update (EV_A_ EV_TSTAMP_HUGE); |
|
|
2901 | */ |
|
|
2902 | periodics_reschedule (EV_A); |
|
|
2903 | } |
|
|
2904 | |
|
|
2905 | ecb_noinline ecb_cold |
|
|
2906 | static void |
|
|
2907 | evtimerfd_init (EV_P) |
|
|
2908 | { |
|
|
2909 | if (!ev_is_active (&timerfd_w)) |
|
|
2910 | { |
|
|
2911 | timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC); |
|
|
2912 | |
|
|
2913 | if (timerfd >= 0) |
|
|
2914 | { |
|
|
2915 | fd_intern (timerfd); /* just to be sure */ |
|
|
2916 | |
|
|
2917 | ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ); |
|
|
2918 | ev_set_priority (&timerfd_w, EV_MINPRI); |
|
|
2919 | ev_io_start (EV_A_ &timerfd_w); |
|
|
2920 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2921 | |
|
|
2922 | /* (re-) arm timer */ |
|
|
2923 | timerfdcb (EV_A_ 0, 0); |
|
|
2924 | } |
|
|
2925 | } |
|
|
2926 | } |
|
|
2927 | |
|
|
2928 | #endif |
|
|
2929 | |
|
|
2930 | /*****************************************************************************/ |
|
|
2931 | |
|
|
2932 | #if EV_USE_IOCP |
|
|
2933 | # include "ev_iocp.c" |
|
|
2934 | #endif |
1232 | #if EV_USE_PORT |
2935 | #if EV_USE_PORT |
1233 | # include "ev_port.c" |
2936 | # include "ev_port.c" |
1234 | #endif |
2937 | #endif |
1235 | #if EV_USE_KQUEUE |
2938 | #if EV_USE_KQUEUE |
1236 | # include "ev_kqueue.c" |
2939 | # include "ev_kqueue.c" |
1237 | #endif |
2940 | #endif |
1238 | #if EV_USE_EPOLL |
2941 | #if EV_USE_EPOLL |
1239 | # include "ev_epoll.c" |
2942 | # include "ev_epoll.c" |
1240 | #endif |
2943 | #endif |
|
|
2944 | #if EV_USE_LINUXAIO |
|
|
2945 | # include "ev_linuxaio.c" |
|
|
2946 | #endif |
|
|
2947 | #if EV_USE_IOURING |
|
|
2948 | # include "ev_iouring.c" |
|
|
2949 | #endif |
1241 | #if EV_USE_POLL |
2950 | #if EV_USE_POLL |
1242 | # include "ev_poll.c" |
2951 | # include "ev_poll.c" |
1243 | #endif |
2952 | #endif |
1244 | #if EV_USE_SELECT |
2953 | #if EV_USE_SELECT |
1245 | # include "ev_select.c" |
2954 | # include "ev_select.c" |
1246 | #endif |
2955 | #endif |
1247 | |
2956 | |
1248 | int |
2957 | ecb_cold int |
1249 | ev_version_major (void) |
2958 | ev_version_major (void) EV_NOEXCEPT |
1250 | { |
2959 | { |
1251 | return EV_VERSION_MAJOR; |
2960 | return EV_VERSION_MAJOR; |
1252 | } |
2961 | } |
1253 | |
2962 | |
1254 | int |
2963 | ecb_cold int |
1255 | ev_version_minor (void) |
2964 | ev_version_minor (void) EV_NOEXCEPT |
1256 | { |
2965 | { |
1257 | return EV_VERSION_MINOR; |
2966 | return EV_VERSION_MINOR; |
1258 | } |
2967 | } |
1259 | |
2968 | |
1260 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2969 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1261 | int inline_size |
2970 | inline_size ecb_cold int |
1262 | enable_secure (void) |
2971 | enable_secure (void) |
1263 | { |
2972 | { |
1264 | #ifdef _WIN32 |
2973 | #ifdef _WIN32 |
1265 | return 0; |
2974 | return 0; |
1266 | #else |
2975 | #else |
1267 | return getuid () != geteuid () |
2976 | return getuid () != geteuid () |
1268 | || getgid () != getegid (); |
2977 | || getgid () != getegid (); |
1269 | #endif |
2978 | #endif |
1270 | } |
2979 | } |
1271 | |
2980 | |
|
|
2981 | ecb_cold |
1272 | unsigned int |
2982 | unsigned int |
1273 | ev_supported_backends (void) |
2983 | ev_supported_backends (void) EV_NOEXCEPT |
1274 | { |
2984 | { |
1275 | unsigned int flags = 0; |
2985 | unsigned int flags = 0; |
1276 | |
2986 | |
1277 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2987 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1278 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2988 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1279 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2989 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2990 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2991 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
1280 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2992 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
1281 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2993 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
1282 | |
2994 | |
1283 | return flags; |
2995 | return flags; |
1284 | } |
2996 | } |
1285 | |
2997 | |
|
|
2998 | ecb_cold |
1286 | unsigned int |
2999 | unsigned int |
1287 | ev_recommended_backends (void) |
3000 | ev_recommended_backends (void) EV_NOEXCEPT |
1288 | { |
3001 | { |
1289 | unsigned int flags = ev_supported_backends (); |
3002 | unsigned int flags = ev_supported_backends (); |
1290 | |
3003 | |
1291 | #ifndef __NetBSD__ |
3004 | #ifndef __NetBSD__ |
1292 | /* kqueue is borked on everything but netbsd apparently */ |
3005 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1296 | #ifdef __APPLE__ |
3009 | #ifdef __APPLE__ |
1297 | /* only select works correctly on that "unix-certified" platform */ |
3010 | /* only select works correctly on that "unix-certified" platform */ |
1298 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
3011 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1299 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
3012 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1300 | #endif |
3013 | #endif |
|
|
3014 | #ifdef __FreeBSD__ |
|
|
3015 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
3016 | #endif |
|
|
3017 | |
|
|
3018 | /* TODO: linuxaio is very experimental */ |
|
|
3019 | #if !EV_RECOMMEND_LINUXAIO |
|
|
3020 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
3021 | #endif |
|
|
3022 | /* TODO: linuxaio is super experimental */ |
|
|
3023 | #if !EV_RECOMMEND_IOURING |
|
|
3024 | flags &= ~EVBACKEND_IOURING; |
|
|
3025 | #endif |
1301 | |
3026 | |
1302 | return flags; |
3027 | return flags; |
1303 | } |
3028 | } |
1304 | |
3029 | |
|
|
3030 | ecb_cold |
1305 | unsigned int |
3031 | unsigned int |
1306 | ev_embeddable_backends (void) |
3032 | ev_embeddable_backends (void) EV_NOEXCEPT |
1307 | { |
3033 | { |
1308 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
3034 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1309 | |
3035 | |
1310 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
3036 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1311 | /* please fix it and tell me how to detect the fix */ |
3037 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1312 | flags &= ~EVBACKEND_EPOLL; |
3038 | flags &= ~EVBACKEND_EPOLL; |
|
|
3039 | |
|
|
3040 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
3041 | |
|
|
3042 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
3043 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
3044 | * if the kernel ever is fixed, this might change... |
|
|
3045 | */ |
1313 | |
3046 | |
1314 | return flags; |
3047 | return flags; |
1315 | } |
3048 | } |
1316 | |
3049 | |
1317 | unsigned int |
3050 | unsigned int |
1318 | ev_backend (EV_P) |
3051 | ev_backend (EV_P) EV_NOEXCEPT |
1319 | { |
3052 | { |
1320 | return backend; |
3053 | return backend; |
1321 | } |
3054 | } |
1322 | |
3055 | |
|
|
3056 | #if EV_FEATURE_API |
1323 | unsigned int |
3057 | unsigned int |
1324 | ev_loop_count (EV_P) |
3058 | ev_iteration (EV_P) EV_NOEXCEPT |
1325 | { |
3059 | { |
1326 | return loop_count; |
3060 | return loop_count; |
1327 | } |
3061 | } |
1328 | |
3062 | |
|
|
3063 | unsigned int |
|
|
3064 | ev_depth (EV_P) EV_NOEXCEPT |
|
|
3065 | { |
|
|
3066 | return loop_depth; |
|
|
3067 | } |
|
|
3068 | |
1329 | void |
3069 | void |
1330 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
3070 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1331 | { |
3071 | { |
1332 | io_blocktime = interval; |
3072 | io_blocktime = interval; |
1333 | } |
3073 | } |
1334 | |
3074 | |
1335 | void |
3075 | void |
1336 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
3076 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1337 | { |
3077 | { |
1338 | timeout_blocktime = interval; |
3078 | timeout_blocktime = interval; |
1339 | } |
3079 | } |
1340 | |
3080 | |
1341 | static void noinline |
3081 | void |
|
|
3082 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
|
|
3083 | { |
|
|
3084 | userdata = data; |
|
|
3085 | } |
|
|
3086 | |
|
|
3087 | void * |
|
|
3088 | ev_userdata (EV_P) EV_NOEXCEPT |
|
|
3089 | { |
|
|
3090 | return userdata; |
|
|
3091 | } |
|
|
3092 | |
|
|
3093 | void |
|
|
3094 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
|
|
3095 | { |
|
|
3096 | invoke_cb = invoke_pending_cb; |
|
|
3097 | } |
|
|
3098 | |
|
|
3099 | void |
|
|
3100 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
|
|
3101 | { |
|
|
3102 | release_cb = release; |
|
|
3103 | acquire_cb = acquire; |
|
|
3104 | } |
|
|
3105 | #endif |
|
|
3106 | |
|
|
3107 | /* initialise a loop structure, must be zero-initialised */ |
|
|
3108 | ecb_noinline ecb_cold |
|
|
3109 | static void |
1342 | loop_init (EV_P_ unsigned int flags) |
3110 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1343 | { |
3111 | { |
1344 | if (!backend) |
3112 | if (!backend) |
1345 | { |
3113 | { |
|
|
3114 | origflags = flags; |
|
|
3115 | |
1346 | #if EV_USE_REALTIME |
3116 | #if EV_USE_REALTIME |
1347 | if (!have_realtime) |
3117 | if (!have_realtime) |
1348 | { |
3118 | { |
1349 | struct timespec ts; |
3119 | struct timespec ts; |
1350 | |
3120 | |
… | |
… | |
1361 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
3131 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1362 | have_monotonic = 1; |
3132 | have_monotonic = 1; |
1363 | } |
3133 | } |
1364 | #endif |
3134 | #endif |
1365 | |
3135 | |
1366 | ev_rt_now = ev_time (); |
|
|
1367 | mn_now = get_clock (); |
|
|
1368 | now_floor = mn_now; |
|
|
1369 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1370 | |
|
|
1371 | io_blocktime = 0.; |
|
|
1372 | timeout_blocktime = 0.; |
|
|
1373 | backend = 0; |
|
|
1374 | backend_fd = -1; |
|
|
1375 | gotasync = 0; |
|
|
1376 | #if EV_USE_INOTIFY |
|
|
1377 | fs_fd = -2; |
|
|
1378 | #endif |
|
|
1379 | |
|
|
1380 | /* pid check not overridable via env */ |
3136 | /* pid check not overridable via env */ |
1381 | #ifndef _WIN32 |
3137 | #ifndef _WIN32 |
1382 | if (flags & EVFLAG_FORKCHECK) |
3138 | if (flags & EVFLAG_FORKCHECK) |
1383 | curpid = getpid (); |
3139 | curpid = getpid (); |
1384 | #endif |
3140 | #endif |
… | |
… | |
1386 | if (!(flags & EVFLAG_NOENV) |
3142 | if (!(flags & EVFLAG_NOENV) |
1387 | && !enable_secure () |
3143 | && !enable_secure () |
1388 | && getenv ("LIBEV_FLAGS")) |
3144 | && getenv ("LIBEV_FLAGS")) |
1389 | flags = atoi (getenv ("LIBEV_FLAGS")); |
3145 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1390 | |
3146 | |
1391 | if (!(flags & 0x0000ffffU)) |
3147 | ev_rt_now = ev_time (); |
|
|
3148 | mn_now = get_clock (); |
|
|
3149 | now_floor = mn_now; |
|
|
3150 | rtmn_diff = ev_rt_now - mn_now; |
|
|
3151 | #if EV_FEATURE_API |
|
|
3152 | invoke_cb = ev_invoke_pending; |
|
|
3153 | #endif |
|
|
3154 | |
|
|
3155 | io_blocktime = 0.; |
|
|
3156 | timeout_blocktime = 0.; |
|
|
3157 | backend = 0; |
|
|
3158 | backend_fd = -1; |
|
|
3159 | sig_pending = 0; |
|
|
3160 | #if EV_ASYNC_ENABLE |
|
|
3161 | async_pending = 0; |
|
|
3162 | #endif |
|
|
3163 | pipe_write_skipped = 0; |
|
|
3164 | pipe_write_wanted = 0; |
|
|
3165 | evpipe [0] = -1; |
|
|
3166 | evpipe [1] = -1; |
|
|
3167 | #if EV_USE_INOTIFY |
|
|
3168 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
3169 | #endif |
|
|
3170 | #if EV_USE_SIGNALFD |
|
|
3171 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
3172 | #endif |
|
|
3173 | #if EV_USE_TIMERFD |
|
|
3174 | timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2; |
|
|
3175 | #endif |
|
|
3176 | |
|
|
3177 | if (!(flags & EVBACKEND_MASK)) |
1392 | flags |= ev_recommended_backends (); |
3178 | flags |= ev_recommended_backends (); |
1393 | |
3179 | |
|
|
3180 | #if EV_USE_IOCP |
|
|
3181 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
3182 | #endif |
1394 | #if EV_USE_PORT |
3183 | #if EV_USE_PORT |
1395 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3184 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1396 | #endif |
3185 | #endif |
1397 | #if EV_USE_KQUEUE |
3186 | #if EV_USE_KQUEUE |
1398 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3187 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3188 | #endif |
|
|
3189 | #if EV_USE_IOURING |
|
|
3190 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3191 | #endif |
|
|
3192 | #if EV_USE_LINUXAIO |
|
|
3193 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1399 | #endif |
3194 | #endif |
1400 | #if EV_USE_EPOLL |
3195 | #if EV_USE_EPOLL |
1401 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3196 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1402 | #endif |
3197 | #endif |
1403 | #if EV_USE_POLL |
3198 | #if EV_USE_POLL |
1404 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3199 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1405 | #endif |
3200 | #endif |
1406 | #if EV_USE_SELECT |
3201 | #if EV_USE_SELECT |
1407 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3202 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1408 | #endif |
3203 | #endif |
1409 | |
3204 | |
|
|
3205 | ev_prepare_init (&pending_w, pendingcb); |
|
|
3206 | |
|
|
3207 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1410 | ev_init (&pipeev, pipecb); |
3208 | ev_init (&pipe_w, pipecb); |
1411 | ev_set_priority (&pipeev, EV_MAXPRI); |
3209 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
3210 | #endif |
1412 | } |
3211 | } |
1413 | } |
3212 | } |
1414 | |
3213 | |
1415 | static void noinline |
3214 | /* free up a loop structure */ |
|
|
3215 | ecb_cold |
|
|
3216 | void |
1416 | loop_destroy (EV_P) |
3217 | ev_loop_destroy (EV_P) |
1417 | { |
3218 | { |
1418 | int i; |
3219 | int i; |
1419 | |
3220 | |
|
|
3221 | #if EV_MULTIPLICITY |
|
|
3222 | /* mimic free (0) */ |
|
|
3223 | if (!EV_A) |
|
|
3224 | return; |
|
|
3225 | #endif |
|
|
3226 | |
|
|
3227 | #if EV_CLEANUP_ENABLE |
|
|
3228 | /* queue cleanup watchers (and execute them) */ |
|
|
3229 | if (ecb_expect_false (cleanupcnt)) |
|
|
3230 | { |
|
|
3231 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
3232 | EV_INVOKE_PENDING; |
|
|
3233 | } |
|
|
3234 | #endif |
|
|
3235 | |
|
|
3236 | #if EV_CHILD_ENABLE |
|
|
3237 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
3238 | { |
|
|
3239 | ev_ref (EV_A); /* child watcher */ |
|
|
3240 | ev_signal_stop (EV_A_ &childev); |
|
|
3241 | } |
|
|
3242 | #endif |
|
|
3243 | |
1420 | if (ev_is_active (&pipeev)) |
3244 | if (ev_is_active (&pipe_w)) |
1421 | { |
3245 | { |
1422 | ev_ref (EV_A); /* signal watcher */ |
3246 | /*ev_ref (EV_A);*/ |
1423 | ev_io_stop (EV_A_ &pipeev); |
3247 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1424 | |
3248 | |
|
|
3249 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
3250 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
3251 | } |
|
|
3252 | |
|
|
3253 | #if EV_USE_SIGNALFD |
|
|
3254 | if (ev_is_active (&sigfd_w)) |
|
|
3255 | close (sigfd); |
|
|
3256 | #endif |
|
|
3257 | |
1425 | #if EV_USE_EVENTFD |
3258 | #if EV_USE_TIMERFD |
1426 | if (evfd >= 0) |
3259 | if (ev_is_active (&timerfd_w)) |
1427 | close (evfd); |
3260 | close (timerfd); |
1428 | #endif |
3261 | #endif |
1429 | |
|
|
1430 | if (evpipe [0] >= 0) |
|
|
1431 | { |
|
|
1432 | close (evpipe [0]); |
|
|
1433 | close (evpipe [1]); |
|
|
1434 | } |
|
|
1435 | } |
|
|
1436 | |
3262 | |
1437 | #if EV_USE_INOTIFY |
3263 | #if EV_USE_INOTIFY |
1438 | if (fs_fd >= 0) |
3264 | if (fs_fd >= 0) |
1439 | close (fs_fd); |
3265 | close (fs_fd); |
1440 | #endif |
3266 | #endif |
1441 | |
3267 | |
1442 | if (backend_fd >= 0) |
3268 | if (backend_fd >= 0) |
1443 | close (backend_fd); |
3269 | close (backend_fd); |
1444 | |
3270 | |
|
|
3271 | #if EV_USE_IOCP |
|
|
3272 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
3273 | #endif |
1445 | #if EV_USE_PORT |
3274 | #if EV_USE_PORT |
1446 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3275 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1447 | #endif |
3276 | #endif |
1448 | #if EV_USE_KQUEUE |
3277 | #if EV_USE_KQUEUE |
1449 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3278 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3279 | #endif |
|
|
3280 | #if EV_USE_IOURING |
|
|
3281 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3282 | #endif |
|
|
3283 | #if EV_USE_LINUXAIO |
|
|
3284 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1450 | #endif |
3285 | #endif |
1451 | #if EV_USE_EPOLL |
3286 | #if EV_USE_EPOLL |
1452 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3287 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1453 | #endif |
3288 | #endif |
1454 | #if EV_USE_POLL |
3289 | #if EV_USE_POLL |
1455 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3290 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1456 | #endif |
3291 | #endif |
1457 | #if EV_USE_SELECT |
3292 | #if EV_USE_SELECT |
1458 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3293 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1459 | #endif |
3294 | #endif |
1460 | |
3295 | |
1461 | for (i = NUMPRI; i--; ) |
3296 | for (i = NUMPRI; i--; ) |
1462 | { |
3297 | { |
1463 | array_free (pending, [i]); |
3298 | array_free (pending, [i]); |
1464 | #if EV_IDLE_ENABLE |
3299 | #if EV_IDLE_ENABLE |
1465 | array_free (idle, [i]); |
3300 | array_free (idle, [i]); |
1466 | #endif |
3301 | #endif |
1467 | } |
3302 | } |
1468 | |
3303 | |
1469 | ev_free (anfds); anfdmax = 0; |
3304 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1470 | |
3305 | |
1471 | /* have to use the microsoft-never-gets-it-right macro */ |
3306 | /* have to use the microsoft-never-gets-it-right macro */ |
1472 | array_free (rfeed, EMPTY); |
3307 | array_free (rfeed, EMPTY); |
1473 | array_free (fdchange, EMPTY); |
3308 | array_free (fdchange, EMPTY); |
1474 | array_free (timer, EMPTY); |
3309 | array_free (timer, EMPTY); |
… | |
… | |
1476 | array_free (periodic, EMPTY); |
3311 | array_free (periodic, EMPTY); |
1477 | #endif |
3312 | #endif |
1478 | #if EV_FORK_ENABLE |
3313 | #if EV_FORK_ENABLE |
1479 | array_free (fork, EMPTY); |
3314 | array_free (fork, EMPTY); |
1480 | #endif |
3315 | #endif |
|
|
3316 | #if EV_CLEANUP_ENABLE |
|
|
3317 | array_free (cleanup, EMPTY); |
|
|
3318 | #endif |
1481 | array_free (prepare, EMPTY); |
3319 | array_free (prepare, EMPTY); |
1482 | array_free (check, EMPTY); |
3320 | array_free (check, EMPTY); |
1483 | #if EV_ASYNC_ENABLE |
3321 | #if EV_ASYNC_ENABLE |
1484 | array_free (async, EMPTY); |
3322 | array_free (async, EMPTY); |
1485 | #endif |
3323 | #endif |
1486 | |
3324 | |
1487 | backend = 0; |
3325 | backend = 0; |
|
|
3326 | |
|
|
3327 | #if EV_MULTIPLICITY |
|
|
3328 | if (ev_is_default_loop (EV_A)) |
|
|
3329 | #endif |
|
|
3330 | ev_default_loop_ptr = 0; |
|
|
3331 | #if EV_MULTIPLICITY |
|
|
3332 | else |
|
|
3333 | ev_free (EV_A); |
|
|
3334 | #endif |
1488 | } |
3335 | } |
1489 | |
3336 | |
1490 | #if EV_USE_INOTIFY |
3337 | #if EV_USE_INOTIFY |
1491 | inline_size void infy_fork (EV_P); |
3338 | inline_size void infy_fork (EV_P); |
1492 | #endif |
3339 | #endif |
1493 | |
3340 | |
1494 | inline_size void |
3341 | inline_size void |
1495 | loop_fork (EV_P) |
3342 | loop_fork (EV_P) |
1496 | { |
3343 | { |
1497 | #if EV_USE_PORT |
3344 | #if EV_USE_PORT |
1498 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3345 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1499 | #endif |
3346 | #endif |
1500 | #if EV_USE_KQUEUE |
3347 | #if EV_USE_KQUEUE |
1501 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3348 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3349 | #endif |
|
|
3350 | #if EV_USE_IOURING |
|
|
3351 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3352 | #endif |
|
|
3353 | #if EV_USE_LINUXAIO |
|
|
3354 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1502 | #endif |
3355 | #endif |
1503 | #if EV_USE_EPOLL |
3356 | #if EV_USE_EPOLL |
1504 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3357 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1505 | #endif |
3358 | #endif |
1506 | #if EV_USE_INOTIFY |
3359 | #if EV_USE_INOTIFY |
1507 | infy_fork (EV_A); |
3360 | infy_fork (EV_A); |
1508 | #endif |
3361 | #endif |
1509 | |
3362 | |
1510 | if (ev_is_active (&pipeev)) |
3363 | if (postfork != 2) |
1511 | { |
3364 | { |
1512 | /* this "locks" the handlers against writing to the pipe */ |
3365 | #if EV_USE_SIGNALFD |
1513 | /* while we modify the fd vars */ |
3366 | /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */ |
1514 | gotsig = 1; |
3367 | #endif |
1515 | #if EV_ASYNC_ENABLE |
3368 | |
1516 | gotasync = 1; |
3369 | #if EV_USE_TIMERFD |
1517 | #endif |
3370 | if (ev_is_active (&timerfd_w)) |
1518 | |
|
|
1519 | ev_ref (EV_A); |
|
|
1520 | ev_io_stop (EV_A_ &pipeev); |
|
|
1521 | |
|
|
1522 | #if EV_USE_EVENTFD |
|
|
1523 | if (evfd >= 0) |
|
|
1524 | close (evfd); |
|
|
1525 | #endif |
|
|
1526 | |
|
|
1527 | if (evpipe [0] >= 0) |
|
|
1528 | { |
3371 | { |
1529 | close (evpipe [0]); |
3372 | ev_ref (EV_A); |
1530 | close (evpipe [1]); |
3373 | ev_io_stop (EV_A_ &timerfd_w); |
|
|
3374 | |
|
|
3375 | close (timerfd); |
|
|
3376 | timerfd = -2; |
|
|
3377 | |
|
|
3378 | evtimerfd_init (EV_A); |
|
|
3379 | /* reschedule periodics, in case we missed something */ |
|
|
3380 | ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM); |
1531 | } |
3381 | } |
1532 | |
3382 | #endif |
|
|
3383 | |
|
|
3384 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
3385 | if (ev_is_active (&pipe_w)) |
|
|
3386 | { |
|
|
3387 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
|
|
3388 | |
|
|
3389 | ev_ref (EV_A); |
|
|
3390 | ev_io_stop (EV_A_ &pipe_w); |
|
|
3391 | |
|
|
3392 | if (evpipe [0] >= 0) |
|
|
3393 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
3394 | |
1533 | evpipe_init (EV_A); |
3395 | evpipe_init (EV_A); |
1534 | /* now iterate over everything, in case we missed something */ |
3396 | /* iterate over everything, in case we missed something before */ |
1535 | pipecb (EV_A_ &pipeev, EV_READ); |
3397 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3398 | } |
|
|
3399 | #endif |
1536 | } |
3400 | } |
1537 | |
3401 | |
1538 | postfork = 0; |
3402 | postfork = 0; |
1539 | } |
3403 | } |
1540 | |
3404 | |
1541 | #if EV_MULTIPLICITY |
3405 | #if EV_MULTIPLICITY |
1542 | |
3406 | |
|
|
3407 | ecb_cold |
1543 | struct ev_loop * |
3408 | struct ev_loop * |
1544 | ev_loop_new (unsigned int flags) |
3409 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
1545 | { |
3410 | { |
1546 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3411 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1547 | |
3412 | |
1548 | memset (loop, 0, sizeof (struct ev_loop)); |
3413 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1549 | |
|
|
1550 | loop_init (EV_A_ flags); |
3414 | loop_init (EV_A_ flags); |
1551 | |
3415 | |
1552 | if (ev_backend (EV_A)) |
3416 | if (ev_backend (EV_A)) |
1553 | return loop; |
3417 | return EV_A; |
1554 | |
3418 | |
|
|
3419 | ev_free (EV_A); |
1555 | return 0; |
3420 | return 0; |
1556 | } |
3421 | } |
1557 | |
3422 | |
1558 | void |
3423 | #endif /* multiplicity */ |
1559 | ev_loop_destroy (EV_P) |
|
|
1560 | { |
|
|
1561 | loop_destroy (EV_A); |
|
|
1562 | ev_free (loop); |
|
|
1563 | } |
|
|
1564 | |
|
|
1565 | void |
|
|
1566 | ev_loop_fork (EV_P) |
|
|
1567 | { |
|
|
1568 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1569 | } |
|
|
1570 | |
3424 | |
1571 | #if EV_VERIFY |
3425 | #if EV_VERIFY |
1572 | static void noinline |
3426 | ecb_noinline ecb_cold |
|
|
3427 | static void |
1573 | verify_watcher (EV_P_ W w) |
3428 | verify_watcher (EV_P_ W w) |
1574 | { |
3429 | { |
1575 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3430 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1576 | |
3431 | |
1577 | if (w->pending) |
3432 | if (w->pending) |
1578 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3433 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1579 | } |
3434 | } |
1580 | |
3435 | |
1581 | static void noinline |
3436 | ecb_noinline ecb_cold |
|
|
3437 | static void |
1582 | verify_heap (EV_P_ ANHE *heap, int N) |
3438 | verify_heap (EV_P_ ANHE *heap, int N) |
1583 | { |
3439 | { |
1584 | int i; |
3440 | int i; |
1585 | |
3441 | |
1586 | for (i = HEAP0; i < N + HEAP0; ++i) |
3442 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1591 | |
3447 | |
1592 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3448 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1593 | } |
3449 | } |
1594 | } |
3450 | } |
1595 | |
3451 | |
1596 | static void noinline |
3452 | ecb_noinline ecb_cold |
|
|
3453 | static void |
1597 | array_verify (EV_P_ W *ws, int cnt) |
3454 | array_verify (EV_P_ W *ws, int cnt) |
1598 | { |
3455 | { |
1599 | while (cnt--) |
3456 | while (cnt--) |
1600 | { |
3457 | { |
1601 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3458 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1602 | verify_watcher (EV_A_ ws [cnt]); |
3459 | verify_watcher (EV_A_ ws [cnt]); |
1603 | } |
3460 | } |
1604 | } |
3461 | } |
1605 | #endif |
3462 | #endif |
1606 | |
3463 | |
1607 | void |
3464 | #if EV_FEATURE_API |
1608 | ev_loop_verify (EV_P) |
3465 | void ecb_cold |
|
|
3466 | ev_verify (EV_P) EV_NOEXCEPT |
1609 | { |
3467 | { |
1610 | #if EV_VERIFY |
3468 | #if EV_VERIFY |
1611 | int i; |
3469 | int i; |
1612 | WL w; |
3470 | WL w, w2; |
1613 | |
3471 | |
1614 | assert (activecnt >= -1); |
3472 | assert (activecnt >= -1); |
1615 | |
3473 | |
1616 | assert (fdchangemax >= fdchangecnt); |
3474 | assert (fdchangemax >= fdchangecnt); |
1617 | for (i = 0; i < fdchangecnt; ++i) |
3475 | for (i = 0; i < fdchangecnt; ++i) |
1618 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3476 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1619 | |
3477 | |
1620 | assert (anfdmax >= 0); |
3478 | assert (anfdmax >= 0); |
1621 | for (i = 0; i < anfdmax; ++i) |
3479 | for (i = 0; i < anfdmax; ++i) |
|
|
3480 | { |
|
|
3481 | int j = 0; |
|
|
3482 | |
1622 | for (w = anfds [i].head; w; w = w->next) |
3483 | for (w = w2 = anfds [i].head; w; w = w->next) |
1623 | { |
3484 | { |
1624 | verify_watcher (EV_A_ (W)w); |
3485 | verify_watcher (EV_A_ (W)w); |
|
|
3486 | |
|
|
3487 | if (j++ & 1) |
|
|
3488 | { |
|
|
3489 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3490 | w2 = w2->next; |
|
|
3491 | } |
|
|
3492 | |
1625 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3493 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1626 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3494 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1627 | } |
3495 | } |
|
|
3496 | } |
1628 | |
3497 | |
1629 | assert (timermax >= timercnt); |
3498 | assert (timermax >= timercnt); |
1630 | verify_heap (EV_A_ timers, timercnt); |
3499 | verify_heap (EV_A_ timers, timercnt); |
1631 | |
3500 | |
1632 | #if EV_PERIODIC_ENABLE |
3501 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1647 | #if EV_FORK_ENABLE |
3516 | #if EV_FORK_ENABLE |
1648 | assert (forkmax >= forkcnt); |
3517 | assert (forkmax >= forkcnt); |
1649 | array_verify (EV_A_ (W *)forks, forkcnt); |
3518 | array_verify (EV_A_ (W *)forks, forkcnt); |
1650 | #endif |
3519 | #endif |
1651 | |
3520 | |
|
|
3521 | #if EV_CLEANUP_ENABLE |
|
|
3522 | assert (cleanupmax >= cleanupcnt); |
|
|
3523 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3524 | #endif |
|
|
3525 | |
1652 | #if EV_ASYNC_ENABLE |
3526 | #if EV_ASYNC_ENABLE |
1653 | assert (asyncmax >= asynccnt); |
3527 | assert (asyncmax >= asynccnt); |
1654 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3528 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1655 | #endif |
3529 | #endif |
1656 | |
3530 | |
|
|
3531 | #if EV_PREPARE_ENABLE |
1657 | assert (preparemax >= preparecnt); |
3532 | assert (preparemax >= preparecnt); |
1658 | array_verify (EV_A_ (W *)prepares, preparecnt); |
3533 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
3534 | #endif |
1659 | |
3535 | |
|
|
3536 | #if EV_CHECK_ENABLE |
1660 | assert (checkmax >= checkcnt); |
3537 | assert (checkmax >= checkcnt); |
1661 | array_verify (EV_A_ (W *)checks, checkcnt); |
3538 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
3539 | #endif |
1662 | |
3540 | |
1663 | # if 0 |
3541 | # if 0 |
|
|
3542 | #if EV_CHILD_ENABLE |
1664 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
3543 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1665 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
3544 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
3545 | #endif |
1666 | # endif |
3546 | # endif |
1667 | #endif |
3547 | #endif |
1668 | } |
3548 | } |
1669 | |
3549 | #endif |
1670 | #endif /* multiplicity */ |
|
|
1671 | |
3550 | |
1672 | #if EV_MULTIPLICITY |
3551 | #if EV_MULTIPLICITY |
|
|
3552 | ecb_cold |
1673 | struct ev_loop * |
3553 | struct ev_loop * |
1674 | ev_default_loop_init (unsigned int flags) |
|
|
1675 | #else |
3554 | #else |
1676 | int |
3555 | int |
|
|
3556 | #endif |
1677 | ev_default_loop (unsigned int flags) |
3557 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
1678 | #endif |
|
|
1679 | { |
3558 | { |
1680 | if (!ev_default_loop_ptr) |
3559 | if (!ev_default_loop_ptr) |
1681 | { |
3560 | { |
1682 | #if EV_MULTIPLICITY |
3561 | #if EV_MULTIPLICITY |
1683 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
3562 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1684 | #else |
3563 | #else |
1685 | ev_default_loop_ptr = 1; |
3564 | ev_default_loop_ptr = 1; |
1686 | #endif |
3565 | #endif |
1687 | |
3566 | |
1688 | loop_init (EV_A_ flags); |
3567 | loop_init (EV_A_ flags); |
1689 | |
3568 | |
1690 | if (ev_backend (EV_A)) |
3569 | if (ev_backend (EV_A)) |
1691 | { |
3570 | { |
1692 | #ifndef _WIN32 |
3571 | #if EV_CHILD_ENABLE |
1693 | ev_signal_init (&childev, childcb, SIGCHLD); |
3572 | ev_signal_init (&childev, childcb, SIGCHLD); |
1694 | ev_set_priority (&childev, EV_MAXPRI); |
3573 | ev_set_priority (&childev, EV_MAXPRI); |
1695 | ev_signal_start (EV_A_ &childev); |
3574 | ev_signal_start (EV_A_ &childev); |
1696 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
3575 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1697 | #endif |
3576 | #endif |
… | |
… | |
1702 | |
3581 | |
1703 | return ev_default_loop_ptr; |
3582 | return ev_default_loop_ptr; |
1704 | } |
3583 | } |
1705 | |
3584 | |
1706 | void |
3585 | void |
1707 | ev_default_destroy (void) |
3586 | ev_loop_fork (EV_P) EV_NOEXCEPT |
1708 | { |
3587 | { |
1709 | #if EV_MULTIPLICITY |
3588 | postfork = 1; |
1710 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1711 | #endif |
|
|
1712 | |
|
|
1713 | ev_default_loop_ptr = 0; |
|
|
1714 | |
|
|
1715 | #ifndef _WIN32 |
|
|
1716 | ev_ref (EV_A); /* child watcher */ |
|
|
1717 | ev_signal_stop (EV_A_ &childev); |
|
|
1718 | #endif |
|
|
1719 | |
|
|
1720 | loop_destroy (EV_A); |
|
|
1721 | } |
|
|
1722 | |
|
|
1723 | void |
|
|
1724 | ev_default_fork (void) |
|
|
1725 | { |
|
|
1726 | #if EV_MULTIPLICITY |
|
|
1727 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1728 | #endif |
|
|
1729 | |
|
|
1730 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1731 | } |
3589 | } |
1732 | |
3590 | |
1733 | /*****************************************************************************/ |
3591 | /*****************************************************************************/ |
1734 | |
3592 | |
1735 | void |
3593 | void |
1736 | ev_invoke (EV_P_ void *w, int revents) |
3594 | ev_invoke (EV_P_ void *w, int revents) |
1737 | { |
3595 | { |
1738 | EV_CB_INVOKE ((W)w, revents); |
3596 | EV_CB_INVOKE ((W)w, revents); |
1739 | } |
3597 | } |
1740 | |
3598 | |
1741 | inline_speed void |
3599 | unsigned int |
1742 | call_pending (EV_P) |
3600 | ev_pending_count (EV_P) EV_NOEXCEPT |
1743 | { |
3601 | { |
1744 | int pri; |
3602 | int pri; |
|
|
3603 | unsigned int count = 0; |
1745 | |
3604 | |
1746 | for (pri = NUMPRI; pri--; ) |
3605 | for (pri = NUMPRI; pri--; ) |
|
|
3606 | count += pendingcnt [pri]; |
|
|
3607 | |
|
|
3608 | return count; |
|
|
3609 | } |
|
|
3610 | |
|
|
3611 | ecb_noinline |
|
|
3612 | void |
|
|
3613 | ev_invoke_pending (EV_P) |
|
|
3614 | { |
|
|
3615 | pendingpri = NUMPRI; |
|
|
3616 | |
|
|
3617 | do |
|
|
3618 | { |
|
|
3619 | --pendingpri; |
|
|
3620 | |
|
|
3621 | /* pendingpri possibly gets modified in the inner loop */ |
1747 | while (pendingcnt [pri]) |
3622 | while (pendingcnt [pendingpri]) |
1748 | { |
|
|
1749 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
|
|
1750 | |
|
|
1751 | if (expect_true (p->w)) |
|
|
1752 | { |
3623 | { |
1753 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
3624 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1754 | |
3625 | |
1755 | p->w->pending = 0; |
3626 | p->w->pending = 0; |
1756 | EV_CB_INVOKE (p->w, p->events); |
3627 | EV_CB_INVOKE (p->w, p->events); |
1757 | EV_FREQUENT_CHECK; |
3628 | EV_FREQUENT_CHECK; |
1758 | } |
3629 | } |
1759 | } |
3630 | } |
|
|
3631 | while (pendingpri); |
1760 | } |
3632 | } |
1761 | |
3633 | |
1762 | #if EV_IDLE_ENABLE |
3634 | #if EV_IDLE_ENABLE |
|
|
3635 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
3636 | /* only when higher priorities are idle" logic */ |
1763 | inline_size void |
3637 | inline_size void |
1764 | idle_reify (EV_P) |
3638 | idle_reify (EV_P) |
1765 | { |
3639 | { |
1766 | if (expect_false (idleall)) |
3640 | if (ecb_expect_false (idleall)) |
1767 | { |
3641 | { |
1768 | int pri; |
3642 | int pri; |
1769 | |
3643 | |
1770 | for (pri = NUMPRI; pri--; ) |
3644 | for (pri = NUMPRI; pri--; ) |
1771 | { |
3645 | { |
… | |
… | |
1780 | } |
3654 | } |
1781 | } |
3655 | } |
1782 | } |
3656 | } |
1783 | #endif |
3657 | #endif |
1784 | |
3658 | |
|
|
3659 | /* make timers pending */ |
1785 | inline_size void |
3660 | inline_size void |
1786 | timers_reify (EV_P) |
3661 | timers_reify (EV_P) |
1787 | { |
3662 | { |
1788 | EV_FREQUENT_CHECK; |
3663 | EV_FREQUENT_CHECK; |
1789 | |
3664 | |
… | |
… | |
1800 | { |
3675 | { |
1801 | ev_at (w) += w->repeat; |
3676 | ev_at (w) += w->repeat; |
1802 | if (ev_at (w) < mn_now) |
3677 | if (ev_at (w) < mn_now) |
1803 | ev_at (w) = mn_now; |
3678 | ev_at (w) = mn_now; |
1804 | |
3679 | |
1805 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3680 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.))); |
1806 | |
3681 | |
1807 | ANHE_at_cache (timers [HEAP0]); |
3682 | ANHE_at_cache (timers [HEAP0]); |
1808 | downheap (timers, timercnt, HEAP0); |
3683 | downheap (timers, timercnt, HEAP0); |
1809 | } |
3684 | } |
1810 | else |
3685 | else |
… | |
… | |
1813 | EV_FREQUENT_CHECK; |
3688 | EV_FREQUENT_CHECK; |
1814 | feed_reverse (EV_A_ (W)w); |
3689 | feed_reverse (EV_A_ (W)w); |
1815 | } |
3690 | } |
1816 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3691 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1817 | |
3692 | |
1818 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3693 | feed_reverse_done (EV_A_ EV_TIMER); |
1819 | } |
3694 | } |
1820 | } |
3695 | } |
1821 | |
3696 | |
1822 | #if EV_PERIODIC_ENABLE |
3697 | #if EV_PERIODIC_ENABLE |
|
|
3698 | |
|
|
3699 | ecb_noinline |
|
|
3700 | static void |
|
|
3701 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3702 | { |
|
|
3703 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3704 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3705 | |
|
|
3706 | /* the above almost always errs on the low side */ |
|
|
3707 | while (at <= ev_rt_now) |
|
|
3708 | { |
|
|
3709 | ev_tstamp nat = at + w->interval; |
|
|
3710 | |
|
|
3711 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3712 | if (ecb_expect_false (nat == at)) |
|
|
3713 | { |
|
|
3714 | at = ev_rt_now; |
|
|
3715 | break; |
|
|
3716 | } |
|
|
3717 | |
|
|
3718 | at = nat; |
|
|
3719 | } |
|
|
3720 | |
|
|
3721 | ev_at (w) = at; |
|
|
3722 | } |
|
|
3723 | |
|
|
3724 | /* make periodics pending */ |
1823 | inline_size void |
3725 | inline_size void |
1824 | periodics_reify (EV_P) |
3726 | periodics_reify (EV_P) |
1825 | { |
3727 | { |
1826 | EV_FREQUENT_CHECK; |
3728 | EV_FREQUENT_CHECK; |
1827 | |
3729 | |
1828 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3730 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1829 | { |
3731 | { |
1830 | int feed_count = 0; |
|
|
1831 | |
|
|
1832 | do |
3732 | do |
1833 | { |
3733 | { |
1834 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3734 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1835 | |
3735 | |
1836 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3736 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
1845 | ANHE_at_cache (periodics [HEAP0]); |
3745 | ANHE_at_cache (periodics [HEAP0]); |
1846 | downheap (periodics, periodiccnt, HEAP0); |
3746 | downheap (periodics, periodiccnt, HEAP0); |
1847 | } |
3747 | } |
1848 | else if (w->interval) |
3748 | else if (w->interval) |
1849 | { |
3749 | { |
1850 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3750 | periodic_recalc (EV_A_ w); |
1851 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1852 | /* this might happen because of floating point inexactness */ |
|
|
1853 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1854 | { |
|
|
1855 | ev_at (w) += w->interval; |
|
|
1856 | |
|
|
1857 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1858 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1859 | /* has effectively asked to get triggered more often than possible */ |
|
|
1860 | if (ev_at (w) < ev_rt_now) |
|
|
1861 | ev_at (w) = ev_rt_now; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | ANHE_at_cache (periodics [HEAP0]); |
3751 | ANHE_at_cache (periodics [HEAP0]); |
1865 | downheap (periodics, periodiccnt, HEAP0); |
3752 | downheap (periodics, periodiccnt, HEAP0); |
1866 | } |
3753 | } |
1867 | else |
3754 | else |
1868 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3755 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
1874 | |
3761 | |
1875 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3762 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1876 | } |
3763 | } |
1877 | } |
3764 | } |
1878 | |
3765 | |
1879 | static void noinline |
3766 | /* simply recalculate all periodics */ |
|
|
3767 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
3768 | ecb_noinline ecb_cold |
|
|
3769 | static void |
1880 | periodics_reschedule (EV_P) |
3770 | periodics_reschedule (EV_P) |
1881 | { |
3771 | { |
1882 | int i; |
3772 | int i; |
1883 | |
3773 | |
1884 | /* adjust periodics after time jump */ |
3774 | /* adjust periodics after time jump */ |
… | |
… | |
1887 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3777 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1888 | |
3778 | |
1889 | if (w->reschedule_cb) |
3779 | if (w->reschedule_cb) |
1890 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3780 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1891 | else if (w->interval) |
3781 | else if (w->interval) |
1892 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3782 | periodic_recalc (EV_A_ w); |
1893 | |
3783 | |
1894 | ANHE_at_cache (periodics [i]); |
3784 | ANHE_at_cache (periodics [i]); |
1895 | } |
3785 | } |
1896 | |
3786 | |
1897 | reheap (periodics, periodiccnt); |
3787 | reheap (periodics, periodiccnt); |
1898 | } |
3788 | } |
1899 | #endif |
3789 | #endif |
1900 | |
3790 | |
1901 | static void noinline |
3791 | /* adjust all timers by a given offset */ |
|
|
3792 | ecb_noinline ecb_cold |
|
|
3793 | static void |
1902 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3794 | timers_reschedule (EV_P_ ev_tstamp adjust) |
1903 | { |
3795 | { |
1904 | int i; |
3796 | int i; |
1905 | |
3797 | |
1906 | for (i = 0; i < timercnt; ++i) |
3798 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
1909 | ANHE_w (*he)->at += adjust; |
3801 | ANHE_w (*he)->at += adjust; |
1910 | ANHE_at_cache (*he); |
3802 | ANHE_at_cache (*he); |
1911 | } |
3803 | } |
1912 | } |
3804 | } |
1913 | |
3805 | |
|
|
3806 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
3807 | /* also detect if there was a timejump, and act accordingly */ |
1914 | inline_speed void |
3808 | inline_speed void |
1915 | time_update (EV_P_ ev_tstamp max_block) |
3809 | time_update (EV_P_ ev_tstamp max_block) |
1916 | { |
3810 | { |
1917 | int i; |
|
|
1918 | |
|
|
1919 | #if EV_USE_MONOTONIC |
3811 | #if EV_USE_MONOTONIC |
1920 | if (expect_true (have_monotonic)) |
3812 | if (ecb_expect_true (have_monotonic)) |
1921 | { |
3813 | { |
|
|
3814 | int i; |
1922 | ev_tstamp odiff = rtmn_diff; |
3815 | ev_tstamp odiff = rtmn_diff; |
1923 | |
3816 | |
1924 | mn_now = get_clock (); |
3817 | mn_now = get_clock (); |
1925 | |
3818 | |
1926 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3819 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1927 | /* interpolate in the meantime */ |
3820 | /* interpolate in the meantime */ |
1928 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3821 | if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5))) |
1929 | { |
3822 | { |
1930 | ev_rt_now = rtmn_diff + mn_now; |
3823 | ev_rt_now = rtmn_diff + mn_now; |
1931 | return; |
3824 | return; |
1932 | } |
3825 | } |
1933 | |
3826 | |
… | |
… | |
1942 | * doesn't hurt either as we only do this on time-jumps or |
3835 | * doesn't hurt either as we only do this on time-jumps or |
1943 | * in the unlikely event of having been preempted here. |
3836 | * in the unlikely event of having been preempted here. |
1944 | */ |
3837 | */ |
1945 | for (i = 4; --i; ) |
3838 | for (i = 4; --i; ) |
1946 | { |
3839 | { |
|
|
3840 | ev_tstamp diff; |
1947 | rtmn_diff = ev_rt_now - mn_now; |
3841 | rtmn_diff = ev_rt_now - mn_now; |
1948 | |
3842 | |
1949 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3843 | diff = odiff - rtmn_diff; |
|
|
3844 | |
|
|
3845 | if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP))) |
1950 | return; /* all is well */ |
3846 | return; /* all is well */ |
1951 | |
3847 | |
1952 | ev_rt_now = ev_time (); |
3848 | ev_rt_now = ev_time (); |
1953 | mn_now = get_clock (); |
3849 | mn_now = get_clock (); |
1954 | now_floor = mn_now; |
3850 | now_floor = mn_now; |
… | |
… | |
1963 | else |
3859 | else |
1964 | #endif |
3860 | #endif |
1965 | { |
3861 | { |
1966 | ev_rt_now = ev_time (); |
3862 | ev_rt_now = ev_time (); |
1967 | |
3863 | |
1968 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3864 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP))) |
1969 | { |
3865 | { |
1970 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3866 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1971 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3867 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1972 | #if EV_PERIODIC_ENABLE |
3868 | #if EV_PERIODIC_ENABLE |
1973 | periodics_reschedule (EV_A); |
3869 | periodics_reschedule (EV_A); |
… | |
… | |
1976 | |
3872 | |
1977 | mn_now = ev_rt_now; |
3873 | mn_now = ev_rt_now; |
1978 | } |
3874 | } |
1979 | } |
3875 | } |
1980 | |
3876 | |
1981 | static int loop_done; |
3877 | int |
1982 | |
|
|
1983 | void |
|
|
1984 | ev_loop (EV_P_ int flags) |
3878 | ev_run (EV_P_ int flags) |
1985 | { |
3879 | { |
|
|
3880 | #if EV_FEATURE_API |
|
|
3881 | ++loop_depth; |
|
|
3882 | #endif |
|
|
3883 | |
|
|
3884 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3885 | |
1986 | loop_done = EVUNLOOP_CANCEL; |
3886 | loop_done = EVBREAK_CANCEL; |
1987 | |
3887 | |
1988 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
3888 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1989 | |
3889 | |
1990 | do |
3890 | do |
1991 | { |
3891 | { |
1992 | #if EV_VERIFY >= 2 |
3892 | #if EV_VERIFY >= 2 |
1993 | ev_loop_verify (EV_A); |
3893 | ev_verify (EV_A); |
1994 | #endif |
3894 | #endif |
1995 | |
3895 | |
1996 | #ifndef _WIN32 |
3896 | #ifndef _WIN32 |
1997 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3897 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
1998 | if (expect_false (getpid () != curpid)) |
3898 | if (ecb_expect_false (getpid () != curpid)) |
1999 | { |
3899 | { |
2000 | curpid = getpid (); |
3900 | curpid = getpid (); |
2001 | postfork = 1; |
3901 | postfork = 1; |
2002 | } |
3902 | } |
2003 | #endif |
3903 | #endif |
2004 | |
3904 | |
2005 | #if EV_FORK_ENABLE |
3905 | #if EV_FORK_ENABLE |
2006 | /* we might have forked, so queue fork handlers */ |
3906 | /* we might have forked, so queue fork handlers */ |
2007 | if (expect_false (postfork)) |
3907 | if (ecb_expect_false (postfork)) |
2008 | if (forkcnt) |
3908 | if (forkcnt) |
2009 | { |
3909 | { |
2010 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3910 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2011 | call_pending (EV_A); |
3911 | EV_INVOKE_PENDING; |
2012 | } |
3912 | } |
2013 | #endif |
3913 | #endif |
2014 | |
3914 | |
|
|
3915 | #if EV_PREPARE_ENABLE |
2015 | /* queue prepare watchers (and execute them) */ |
3916 | /* queue prepare watchers (and execute them) */ |
2016 | if (expect_false (preparecnt)) |
3917 | if (ecb_expect_false (preparecnt)) |
2017 | { |
3918 | { |
2018 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3919 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2019 | call_pending (EV_A); |
3920 | EV_INVOKE_PENDING; |
2020 | } |
3921 | } |
|
|
3922 | #endif |
|
|
3923 | |
|
|
3924 | if (ecb_expect_false (loop_done)) |
|
|
3925 | break; |
2021 | |
3926 | |
2022 | /* we might have forked, so reify kernel state if necessary */ |
3927 | /* we might have forked, so reify kernel state if necessary */ |
2023 | if (expect_false (postfork)) |
3928 | if (ecb_expect_false (postfork)) |
2024 | loop_fork (EV_A); |
3929 | loop_fork (EV_A); |
2025 | |
3930 | |
2026 | /* update fd-related kernel structures */ |
3931 | /* update fd-related kernel structures */ |
2027 | fd_reify (EV_A); |
3932 | fd_reify (EV_A); |
2028 | |
3933 | |
2029 | /* calculate blocking time */ |
3934 | /* calculate blocking time */ |
2030 | { |
3935 | { |
2031 | ev_tstamp waittime = 0.; |
3936 | ev_tstamp waittime = 0.; |
2032 | ev_tstamp sleeptime = 0.; |
3937 | ev_tstamp sleeptime = 0.; |
2033 | |
3938 | |
|
|
3939 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3940 | ev_tstamp prev_mn_now = mn_now; |
|
|
3941 | |
|
|
3942 | /* update time to cancel out callback processing overhead */ |
|
|
3943 | time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE)); |
|
|
3944 | |
|
|
3945 | /* from now on, we want a pipe-wake-up */ |
|
|
3946 | pipe_write_wanted = 1; |
|
|
3947 | |
|
|
3948 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3949 | |
2034 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3950 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2035 | { |
3951 | { |
2036 | /* update time to cancel out callback processing overhead */ |
|
|
2037 | time_update (EV_A_ 1e100); |
|
|
2038 | |
|
|
2039 | waittime = MAX_BLOCKTIME; |
3952 | waittime = EV_TS_CONST (MAX_BLOCKTIME); |
2040 | |
3953 | |
2041 | if (timercnt) |
3954 | if (timercnt) |
2042 | { |
3955 | { |
2043 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3956 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2044 | if (waittime > to) waittime = to; |
3957 | if (waittime > to) waittime = to; |
2045 | } |
3958 | } |
2046 | |
3959 | |
2047 | #if EV_PERIODIC_ENABLE |
3960 | #if EV_PERIODIC_ENABLE |
2048 | if (periodiccnt) |
3961 | if (periodiccnt) |
2049 | { |
3962 | { |
2050 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3963 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2051 | if (waittime > to) waittime = to; |
3964 | if (waittime > to) waittime = to; |
2052 | } |
3965 | } |
2053 | #endif |
3966 | #endif |
2054 | |
3967 | |
|
|
3968 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2055 | if (expect_false (waittime < timeout_blocktime)) |
3969 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2056 | waittime = timeout_blocktime; |
3970 | waittime = timeout_blocktime; |
2057 | |
3971 | |
2058 | sleeptime = waittime - backend_fudge; |
3972 | /* now there are two more special cases left, either we have |
|
|
3973 | * already-expired timers, so we should not sleep, or we have timers |
|
|
3974 | * that expire very soon, in which case we need to wait for a minimum |
|
|
3975 | * amount of time for some event loop backends. |
|
|
3976 | */ |
|
|
3977 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3978 | waittime = waittime <= EV_TS_CONST (0.) |
|
|
3979 | ? EV_TS_CONST (0.) |
|
|
3980 | : backend_mintime; |
2059 | |
3981 | |
|
|
3982 | /* extra check because io_blocktime is commonly 0 */ |
2060 | if (expect_true (sleeptime > io_blocktime)) |
3983 | if (ecb_expect_false (io_blocktime)) |
2061 | sleeptime = io_blocktime; |
|
|
2062 | |
|
|
2063 | if (sleeptime) |
|
|
2064 | { |
3984 | { |
|
|
3985 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3986 | |
|
|
3987 | if (sleeptime > waittime - backend_mintime) |
|
|
3988 | sleeptime = waittime - backend_mintime; |
|
|
3989 | |
|
|
3990 | if (ecb_expect_true (sleeptime > EV_TS_CONST (0.))) |
|
|
3991 | { |
2065 | ev_sleep (sleeptime); |
3992 | ev_sleep (sleeptime); |
2066 | waittime -= sleeptime; |
3993 | waittime -= sleeptime; |
|
|
3994 | } |
2067 | } |
3995 | } |
2068 | } |
3996 | } |
2069 | |
3997 | |
|
|
3998 | #if EV_FEATURE_API |
2070 | ++loop_count; |
3999 | ++loop_count; |
|
|
4000 | #endif |
|
|
4001 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2071 | backend_poll (EV_A_ waittime); |
4002 | backend_poll (EV_A_ waittime); |
|
|
4003 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
4004 | |
|
|
4005 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
4006 | |
|
|
4007 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
4008 | if (pipe_write_skipped) |
|
|
4009 | { |
|
|
4010 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
4011 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
4012 | } |
2072 | |
4013 | |
2073 | /* update ev_rt_now, do magic */ |
4014 | /* update ev_rt_now, do magic */ |
2074 | time_update (EV_A_ waittime + sleeptime); |
4015 | time_update (EV_A_ waittime + sleeptime); |
2075 | } |
4016 | } |
2076 | |
4017 | |
… | |
… | |
2083 | #if EV_IDLE_ENABLE |
4024 | #if EV_IDLE_ENABLE |
2084 | /* queue idle watchers unless other events are pending */ |
4025 | /* queue idle watchers unless other events are pending */ |
2085 | idle_reify (EV_A); |
4026 | idle_reify (EV_A); |
2086 | #endif |
4027 | #endif |
2087 | |
4028 | |
|
|
4029 | #if EV_CHECK_ENABLE |
2088 | /* queue check watchers, to be executed first */ |
4030 | /* queue check watchers, to be executed first */ |
2089 | if (expect_false (checkcnt)) |
4031 | if (ecb_expect_false (checkcnt)) |
2090 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
4032 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
4033 | #endif |
2091 | |
4034 | |
2092 | call_pending (EV_A); |
4035 | EV_INVOKE_PENDING; |
2093 | } |
4036 | } |
2094 | while (expect_true ( |
4037 | while (ecb_expect_true ( |
2095 | activecnt |
4038 | activecnt |
2096 | && !loop_done |
4039 | && !loop_done |
2097 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
4040 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2098 | )); |
4041 | )); |
2099 | |
4042 | |
2100 | if (loop_done == EVUNLOOP_ONE) |
4043 | if (loop_done == EVBREAK_ONE) |
2101 | loop_done = EVUNLOOP_CANCEL; |
4044 | loop_done = EVBREAK_CANCEL; |
2102 | } |
|
|
2103 | |
4045 | |
|
|
4046 | #if EV_FEATURE_API |
|
|
4047 | --loop_depth; |
|
|
4048 | #endif |
|
|
4049 | |
|
|
4050 | return activecnt; |
|
|
4051 | } |
|
|
4052 | |
2104 | void |
4053 | void |
2105 | ev_unloop (EV_P_ int how) |
4054 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2106 | { |
4055 | { |
2107 | loop_done = how; |
4056 | loop_done = how; |
2108 | } |
4057 | } |
2109 | |
4058 | |
2110 | void |
4059 | void |
2111 | ev_ref (EV_P) |
4060 | ev_ref (EV_P) EV_NOEXCEPT |
2112 | { |
4061 | { |
2113 | ++activecnt; |
4062 | ++activecnt; |
2114 | } |
4063 | } |
2115 | |
4064 | |
2116 | void |
4065 | void |
2117 | ev_unref (EV_P) |
4066 | ev_unref (EV_P) EV_NOEXCEPT |
2118 | { |
4067 | { |
2119 | --activecnt; |
4068 | --activecnt; |
2120 | } |
4069 | } |
2121 | |
4070 | |
2122 | void |
4071 | void |
2123 | ev_now_update (EV_P) |
4072 | ev_now_update (EV_P) EV_NOEXCEPT |
2124 | { |
4073 | { |
2125 | time_update (EV_A_ 1e100); |
4074 | time_update (EV_A_ EV_TSTAMP_HUGE); |
2126 | } |
4075 | } |
2127 | |
4076 | |
2128 | void |
4077 | void |
2129 | ev_suspend (EV_P) |
4078 | ev_suspend (EV_P) EV_NOEXCEPT |
2130 | { |
4079 | { |
2131 | ev_now_update (EV_A); |
4080 | ev_now_update (EV_A); |
2132 | } |
4081 | } |
2133 | |
4082 | |
2134 | void |
4083 | void |
2135 | ev_resume (EV_P) |
4084 | ev_resume (EV_P) EV_NOEXCEPT |
2136 | { |
4085 | { |
2137 | ev_tstamp mn_prev = mn_now; |
4086 | ev_tstamp mn_prev = mn_now; |
2138 | |
4087 | |
2139 | ev_now_update (EV_A); |
4088 | ev_now_update (EV_A); |
2140 | timers_reschedule (EV_A_ mn_now - mn_prev); |
4089 | timers_reschedule (EV_A_ mn_now - mn_prev); |
2141 | #if EV_PERIODIC_ENABLE |
4090 | #if EV_PERIODIC_ENABLE |
|
|
4091 | /* TODO: really do this? */ |
2142 | periodics_reschedule (EV_A); |
4092 | periodics_reschedule (EV_A); |
2143 | #endif |
4093 | #endif |
2144 | } |
4094 | } |
2145 | |
4095 | |
2146 | /*****************************************************************************/ |
4096 | /*****************************************************************************/ |
|
|
4097 | /* singly-linked list management, used when the expected list length is short */ |
2147 | |
4098 | |
2148 | inline_size void |
4099 | inline_size void |
2149 | wlist_add (WL *head, WL elem) |
4100 | wlist_add (WL *head, WL elem) |
2150 | { |
4101 | { |
2151 | elem->next = *head; |
4102 | elem->next = *head; |
… | |
… | |
2155 | inline_size void |
4106 | inline_size void |
2156 | wlist_del (WL *head, WL elem) |
4107 | wlist_del (WL *head, WL elem) |
2157 | { |
4108 | { |
2158 | while (*head) |
4109 | while (*head) |
2159 | { |
4110 | { |
2160 | if (*head == elem) |
4111 | if (ecb_expect_true (*head == elem)) |
2161 | { |
4112 | { |
2162 | *head = elem->next; |
4113 | *head = elem->next; |
2163 | return; |
4114 | break; |
2164 | } |
4115 | } |
2165 | |
4116 | |
2166 | head = &(*head)->next; |
4117 | head = &(*head)->next; |
2167 | } |
4118 | } |
2168 | } |
4119 | } |
2169 | |
4120 | |
|
|
4121 | /* internal, faster, version of ev_clear_pending */ |
2170 | inline_speed void |
4122 | inline_speed void |
2171 | clear_pending (EV_P_ W w) |
4123 | clear_pending (EV_P_ W w) |
2172 | { |
4124 | { |
2173 | if (w->pending) |
4125 | if (w->pending) |
2174 | { |
4126 | { |
2175 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
4127 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2176 | w->pending = 0; |
4128 | w->pending = 0; |
2177 | } |
4129 | } |
2178 | } |
4130 | } |
2179 | |
4131 | |
2180 | int |
4132 | int |
2181 | ev_clear_pending (EV_P_ void *w) |
4133 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2182 | { |
4134 | { |
2183 | W w_ = (W)w; |
4135 | W w_ = (W)w; |
2184 | int pending = w_->pending; |
4136 | int pending = w_->pending; |
2185 | |
4137 | |
2186 | if (expect_true (pending)) |
4138 | if (ecb_expect_true (pending)) |
2187 | { |
4139 | { |
2188 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4140 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
4141 | p->w = (W)&pending_w; |
2189 | w_->pending = 0; |
4142 | w_->pending = 0; |
2190 | p->w = 0; |
|
|
2191 | return p->events; |
4143 | return p->events; |
2192 | } |
4144 | } |
2193 | else |
4145 | else |
2194 | return 0; |
4146 | return 0; |
2195 | } |
4147 | } |
2196 | |
4148 | |
2197 | inline_size void |
4149 | inline_size void |
2198 | pri_adjust (EV_P_ W w) |
4150 | pri_adjust (EV_P_ W w) |
2199 | { |
4151 | { |
2200 | int pri = w->priority; |
4152 | int pri = ev_priority (w); |
2201 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
4153 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2202 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
4154 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2203 | w->priority = pri; |
4155 | ev_set_priority (w, pri); |
2204 | } |
4156 | } |
2205 | |
4157 | |
2206 | inline_speed void |
4158 | inline_speed void |
2207 | ev_start (EV_P_ W w, int active) |
4159 | ev_start (EV_P_ W w, int active) |
2208 | { |
4160 | { |
… | |
… | |
2218 | w->active = 0; |
4170 | w->active = 0; |
2219 | } |
4171 | } |
2220 | |
4172 | |
2221 | /*****************************************************************************/ |
4173 | /*****************************************************************************/ |
2222 | |
4174 | |
2223 | void noinline |
4175 | ecb_noinline |
|
|
4176 | void |
2224 | ev_io_start (EV_P_ ev_io *w) |
4177 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2225 | { |
4178 | { |
2226 | int fd = w->fd; |
4179 | int fd = w->fd; |
2227 | |
4180 | |
2228 | if (expect_false (ev_is_active (w))) |
4181 | if (ecb_expect_false (ev_is_active (w))) |
2229 | return; |
4182 | return; |
2230 | |
4183 | |
2231 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4184 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2232 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4185 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2233 | |
4186 | |
|
|
4187 | #if EV_VERIFY >= 2 |
|
|
4188 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4189 | #endif |
2234 | EV_FREQUENT_CHECK; |
4190 | EV_FREQUENT_CHECK; |
2235 | |
4191 | |
2236 | ev_start (EV_A_ (W)w, 1); |
4192 | ev_start (EV_A_ (W)w, 1); |
2237 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4193 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2238 | wlist_add (&anfds[fd].head, (WL)w); |
4194 | wlist_add (&anfds[fd].head, (WL)w); |
2239 | |
4195 | |
|
|
4196 | /* common bug, apparently */ |
|
|
4197 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
4198 | |
2240 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
4199 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2241 | w->events &= ~EV__IOFDSET; |
4200 | w->events &= ~EV__IOFDSET; |
2242 | |
4201 | |
2243 | EV_FREQUENT_CHECK; |
4202 | EV_FREQUENT_CHECK; |
2244 | } |
4203 | } |
2245 | |
4204 | |
2246 | void noinline |
4205 | ecb_noinline |
|
|
4206 | void |
2247 | ev_io_stop (EV_P_ ev_io *w) |
4207 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2248 | { |
4208 | { |
2249 | clear_pending (EV_A_ (W)w); |
4209 | clear_pending (EV_A_ (W)w); |
2250 | if (expect_false (!ev_is_active (w))) |
4210 | if (ecb_expect_false (!ev_is_active (w))) |
2251 | return; |
4211 | return; |
2252 | |
4212 | |
2253 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4213 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2254 | |
4214 | |
|
|
4215 | #if EV_VERIFY >= 2 |
|
|
4216 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4217 | #endif |
2255 | EV_FREQUENT_CHECK; |
4218 | EV_FREQUENT_CHECK; |
2256 | |
4219 | |
2257 | wlist_del (&anfds[w->fd].head, (WL)w); |
4220 | wlist_del (&anfds[w->fd].head, (WL)w); |
2258 | ev_stop (EV_A_ (W)w); |
4221 | ev_stop (EV_A_ (W)w); |
2259 | |
4222 | |
2260 | fd_change (EV_A_ w->fd, 1); |
4223 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2261 | |
4224 | |
2262 | EV_FREQUENT_CHECK; |
4225 | EV_FREQUENT_CHECK; |
2263 | } |
4226 | } |
2264 | |
4227 | |
2265 | void noinline |
4228 | ecb_noinline |
|
|
4229 | void |
2266 | ev_timer_start (EV_P_ ev_timer *w) |
4230 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2267 | { |
4231 | { |
2268 | if (expect_false (ev_is_active (w))) |
4232 | if (ecb_expect_false (ev_is_active (w))) |
2269 | return; |
4233 | return; |
2270 | |
4234 | |
2271 | ev_at (w) += mn_now; |
4235 | ev_at (w) += mn_now; |
2272 | |
4236 | |
2273 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4237 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2274 | |
4238 | |
2275 | EV_FREQUENT_CHECK; |
4239 | EV_FREQUENT_CHECK; |
2276 | |
4240 | |
2277 | ++timercnt; |
4241 | ++timercnt; |
2278 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4242 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2279 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4243 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2280 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4244 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2281 | ANHE_at_cache (timers [ev_active (w)]); |
4245 | ANHE_at_cache (timers [ev_active (w)]); |
2282 | upheap (timers, ev_active (w)); |
4246 | upheap (timers, ev_active (w)); |
2283 | |
4247 | |
2284 | EV_FREQUENT_CHECK; |
4248 | EV_FREQUENT_CHECK; |
2285 | |
4249 | |
2286 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4250 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2287 | } |
4251 | } |
2288 | |
4252 | |
2289 | void noinline |
4253 | ecb_noinline |
|
|
4254 | void |
2290 | ev_timer_stop (EV_P_ ev_timer *w) |
4255 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2291 | { |
4256 | { |
2292 | clear_pending (EV_A_ (W)w); |
4257 | clear_pending (EV_A_ (W)w); |
2293 | if (expect_false (!ev_is_active (w))) |
4258 | if (ecb_expect_false (!ev_is_active (w))) |
2294 | return; |
4259 | return; |
2295 | |
4260 | |
2296 | EV_FREQUENT_CHECK; |
4261 | EV_FREQUENT_CHECK; |
2297 | |
4262 | |
2298 | { |
4263 | { |
… | |
… | |
2300 | |
4265 | |
2301 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4266 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2302 | |
4267 | |
2303 | --timercnt; |
4268 | --timercnt; |
2304 | |
4269 | |
2305 | if (expect_true (active < timercnt + HEAP0)) |
4270 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2306 | { |
4271 | { |
2307 | timers [active] = timers [timercnt + HEAP0]; |
4272 | timers [active] = timers [timercnt + HEAP0]; |
2308 | adjustheap (timers, timercnt, active); |
4273 | adjustheap (timers, timercnt, active); |
2309 | } |
4274 | } |
2310 | } |
4275 | } |
2311 | |
4276 | |
|
|
4277 | ev_at (w) -= mn_now; |
|
|
4278 | |
|
|
4279 | ev_stop (EV_A_ (W)w); |
|
|
4280 | |
2312 | EV_FREQUENT_CHECK; |
4281 | EV_FREQUENT_CHECK; |
2313 | |
|
|
2314 | ev_at (w) -= mn_now; |
|
|
2315 | |
|
|
2316 | ev_stop (EV_A_ (W)w); |
|
|
2317 | } |
4282 | } |
2318 | |
4283 | |
2319 | void noinline |
4284 | ecb_noinline |
|
|
4285 | void |
2320 | ev_timer_again (EV_P_ ev_timer *w) |
4286 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2321 | { |
4287 | { |
2322 | EV_FREQUENT_CHECK; |
4288 | EV_FREQUENT_CHECK; |
|
|
4289 | |
|
|
4290 | clear_pending (EV_A_ (W)w); |
2323 | |
4291 | |
2324 | if (ev_is_active (w)) |
4292 | if (ev_is_active (w)) |
2325 | { |
4293 | { |
2326 | if (w->repeat) |
4294 | if (w->repeat) |
2327 | { |
4295 | { |
… | |
… | |
2339 | } |
4307 | } |
2340 | |
4308 | |
2341 | EV_FREQUENT_CHECK; |
4309 | EV_FREQUENT_CHECK; |
2342 | } |
4310 | } |
2343 | |
4311 | |
|
|
4312 | ev_tstamp |
|
|
4313 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
|
|
4314 | { |
|
|
4315 | return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.)); |
|
|
4316 | } |
|
|
4317 | |
2344 | #if EV_PERIODIC_ENABLE |
4318 | #if EV_PERIODIC_ENABLE |
2345 | void noinline |
4319 | ecb_noinline |
|
|
4320 | void |
2346 | ev_periodic_start (EV_P_ ev_periodic *w) |
4321 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2347 | { |
4322 | { |
2348 | if (expect_false (ev_is_active (w))) |
4323 | if (ecb_expect_false (ev_is_active (w))) |
2349 | return; |
4324 | return; |
|
|
4325 | |
|
|
4326 | #if EV_USE_TIMERFD |
|
|
4327 | if (timerfd == -2) |
|
|
4328 | evtimerfd_init (EV_A); |
|
|
4329 | #endif |
2350 | |
4330 | |
2351 | if (w->reschedule_cb) |
4331 | if (w->reschedule_cb) |
2352 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4332 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2353 | else if (w->interval) |
4333 | else if (w->interval) |
2354 | { |
4334 | { |
2355 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4335 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2356 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4336 | periodic_recalc (EV_A_ w); |
2357 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2358 | } |
4337 | } |
2359 | else |
4338 | else |
2360 | ev_at (w) = w->offset; |
4339 | ev_at (w) = w->offset; |
2361 | |
4340 | |
2362 | EV_FREQUENT_CHECK; |
4341 | EV_FREQUENT_CHECK; |
2363 | |
4342 | |
2364 | ++periodiccnt; |
4343 | ++periodiccnt; |
2365 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4344 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2366 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4345 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2367 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4346 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2368 | ANHE_at_cache (periodics [ev_active (w)]); |
4347 | ANHE_at_cache (periodics [ev_active (w)]); |
2369 | upheap (periodics, ev_active (w)); |
4348 | upheap (periodics, ev_active (w)); |
2370 | |
4349 | |
2371 | EV_FREQUENT_CHECK; |
4350 | EV_FREQUENT_CHECK; |
2372 | |
4351 | |
2373 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4352 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2374 | } |
4353 | } |
2375 | |
4354 | |
2376 | void noinline |
4355 | ecb_noinline |
|
|
4356 | void |
2377 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4357 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2378 | { |
4358 | { |
2379 | clear_pending (EV_A_ (W)w); |
4359 | clear_pending (EV_A_ (W)w); |
2380 | if (expect_false (!ev_is_active (w))) |
4360 | if (ecb_expect_false (!ev_is_active (w))) |
2381 | return; |
4361 | return; |
2382 | |
4362 | |
2383 | EV_FREQUENT_CHECK; |
4363 | EV_FREQUENT_CHECK; |
2384 | |
4364 | |
2385 | { |
4365 | { |
… | |
… | |
2387 | |
4367 | |
2388 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4368 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2389 | |
4369 | |
2390 | --periodiccnt; |
4370 | --periodiccnt; |
2391 | |
4371 | |
2392 | if (expect_true (active < periodiccnt + HEAP0)) |
4372 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2393 | { |
4373 | { |
2394 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4374 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2395 | adjustheap (periodics, periodiccnt, active); |
4375 | adjustheap (periodics, periodiccnt, active); |
2396 | } |
4376 | } |
2397 | } |
4377 | } |
2398 | |
4378 | |
|
|
4379 | ev_stop (EV_A_ (W)w); |
|
|
4380 | |
2399 | EV_FREQUENT_CHECK; |
4381 | EV_FREQUENT_CHECK; |
2400 | |
|
|
2401 | ev_stop (EV_A_ (W)w); |
|
|
2402 | } |
4382 | } |
2403 | |
4383 | |
2404 | void noinline |
4384 | ecb_noinline |
|
|
4385 | void |
2405 | ev_periodic_again (EV_P_ ev_periodic *w) |
4386 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2406 | { |
4387 | { |
2407 | /* TODO: use adjustheap and recalculation */ |
4388 | /* TODO: use adjustheap and recalculation */ |
2408 | ev_periodic_stop (EV_A_ w); |
4389 | ev_periodic_stop (EV_A_ w); |
2409 | ev_periodic_start (EV_A_ w); |
4390 | ev_periodic_start (EV_A_ w); |
2410 | } |
4391 | } |
… | |
… | |
2412 | |
4393 | |
2413 | #ifndef SA_RESTART |
4394 | #ifndef SA_RESTART |
2414 | # define SA_RESTART 0 |
4395 | # define SA_RESTART 0 |
2415 | #endif |
4396 | #endif |
2416 | |
4397 | |
2417 | void noinline |
4398 | #if EV_SIGNAL_ENABLE |
|
|
4399 | |
|
|
4400 | ecb_noinline |
|
|
4401 | void |
2418 | ev_signal_start (EV_P_ ev_signal *w) |
4402 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2419 | { |
4403 | { |
|
|
4404 | if (ecb_expect_false (ev_is_active (w))) |
|
|
4405 | return; |
|
|
4406 | |
|
|
4407 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
4408 | |
2420 | #if EV_MULTIPLICITY |
4409 | #if EV_MULTIPLICITY |
2421 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4410 | assert (("libev: a signal must not be attached to two different loops", |
2422 | #endif |
4411 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2423 | if (expect_false (ev_is_active (w))) |
|
|
2424 | return; |
|
|
2425 | |
4412 | |
2426 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
4413 | signals [w->signum - 1].loop = EV_A; |
2427 | |
4414 | ECB_MEMORY_FENCE_RELEASE; |
2428 | evpipe_init (EV_A); |
4415 | #endif |
2429 | |
4416 | |
2430 | EV_FREQUENT_CHECK; |
4417 | EV_FREQUENT_CHECK; |
2431 | |
4418 | |
|
|
4419 | #if EV_USE_SIGNALFD |
|
|
4420 | if (sigfd == -2) |
2432 | { |
4421 | { |
2433 | #ifndef _WIN32 |
4422 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2434 | sigset_t full, prev; |
4423 | if (sigfd < 0 && errno == EINVAL) |
2435 | sigfillset (&full); |
4424 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2436 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2437 | #endif |
|
|
2438 | |
4425 | |
2439 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
4426 | if (sigfd >= 0) |
|
|
4427 | { |
|
|
4428 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2440 | |
4429 | |
2441 | #ifndef _WIN32 |
4430 | sigemptyset (&sigfd_set); |
2442 | sigprocmask (SIG_SETMASK, &prev, 0); |
4431 | |
2443 | #endif |
4432 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
4433 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
4434 | ev_io_start (EV_A_ &sigfd_w); |
|
|
4435 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
4436 | } |
2444 | } |
4437 | } |
|
|
4438 | |
|
|
4439 | if (sigfd >= 0) |
|
|
4440 | { |
|
|
4441 | /* TODO: check .head */ |
|
|
4442 | sigaddset (&sigfd_set, w->signum); |
|
|
4443 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
4444 | |
|
|
4445 | signalfd (sigfd, &sigfd_set, 0); |
|
|
4446 | } |
|
|
4447 | #endif |
2445 | |
4448 | |
2446 | ev_start (EV_A_ (W)w, 1); |
4449 | ev_start (EV_A_ (W)w, 1); |
2447 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
4450 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2448 | |
4451 | |
2449 | if (!((WL)w)->next) |
4452 | if (!((WL)w)->next) |
|
|
4453 | # if EV_USE_SIGNALFD |
|
|
4454 | if (sigfd < 0) /*TODO*/ |
|
|
4455 | # endif |
2450 | { |
4456 | { |
2451 | #if _WIN32 |
4457 | # ifdef _WIN32 |
|
|
4458 | evpipe_init (EV_A); |
|
|
4459 | |
2452 | signal (w->signum, ev_sighandler); |
4460 | signal (w->signum, ev_sighandler); |
2453 | #else |
4461 | # else |
2454 | struct sigaction sa; |
4462 | struct sigaction sa; |
|
|
4463 | |
|
|
4464 | evpipe_init (EV_A); |
|
|
4465 | |
2455 | sa.sa_handler = ev_sighandler; |
4466 | sa.sa_handler = ev_sighandler; |
2456 | sigfillset (&sa.sa_mask); |
4467 | sigfillset (&sa.sa_mask); |
2457 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4468 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2458 | sigaction (w->signum, &sa, 0); |
4469 | sigaction (w->signum, &sa, 0); |
|
|
4470 | |
|
|
4471 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4472 | { |
|
|
4473 | sigemptyset (&sa.sa_mask); |
|
|
4474 | sigaddset (&sa.sa_mask, w->signum); |
|
|
4475 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4476 | } |
2459 | #endif |
4477 | #endif |
2460 | } |
4478 | } |
2461 | |
4479 | |
2462 | EV_FREQUENT_CHECK; |
4480 | EV_FREQUENT_CHECK; |
2463 | } |
4481 | } |
2464 | |
4482 | |
2465 | void noinline |
4483 | ecb_noinline |
|
|
4484 | void |
2466 | ev_signal_stop (EV_P_ ev_signal *w) |
4485 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2467 | { |
4486 | { |
2468 | clear_pending (EV_A_ (W)w); |
4487 | clear_pending (EV_A_ (W)w); |
2469 | if (expect_false (!ev_is_active (w))) |
4488 | if (ecb_expect_false (!ev_is_active (w))) |
2470 | return; |
4489 | return; |
2471 | |
4490 | |
2472 | EV_FREQUENT_CHECK; |
4491 | EV_FREQUENT_CHECK; |
2473 | |
4492 | |
2474 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4493 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2475 | ev_stop (EV_A_ (W)w); |
4494 | ev_stop (EV_A_ (W)w); |
2476 | |
4495 | |
2477 | if (!signals [w->signum - 1].head) |
4496 | if (!signals [w->signum - 1].head) |
|
|
4497 | { |
|
|
4498 | #if EV_MULTIPLICITY |
|
|
4499 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
4500 | #endif |
|
|
4501 | #if EV_USE_SIGNALFD |
|
|
4502 | if (sigfd >= 0) |
|
|
4503 | { |
|
|
4504 | sigset_t ss; |
|
|
4505 | |
|
|
4506 | sigemptyset (&ss); |
|
|
4507 | sigaddset (&ss, w->signum); |
|
|
4508 | sigdelset (&sigfd_set, w->signum); |
|
|
4509 | |
|
|
4510 | signalfd (sigfd, &sigfd_set, 0); |
|
|
4511 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
4512 | } |
|
|
4513 | else |
|
|
4514 | #endif |
2478 | signal (w->signum, SIG_DFL); |
4515 | signal (w->signum, SIG_DFL); |
|
|
4516 | } |
2479 | |
4517 | |
2480 | EV_FREQUENT_CHECK; |
4518 | EV_FREQUENT_CHECK; |
2481 | } |
4519 | } |
2482 | |
4520 | |
|
|
4521 | #endif |
|
|
4522 | |
|
|
4523 | #if EV_CHILD_ENABLE |
|
|
4524 | |
2483 | void |
4525 | void |
2484 | ev_child_start (EV_P_ ev_child *w) |
4526 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
2485 | { |
4527 | { |
2486 | #if EV_MULTIPLICITY |
4528 | #if EV_MULTIPLICITY |
2487 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4529 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2488 | #endif |
4530 | #endif |
2489 | if (expect_false (ev_is_active (w))) |
4531 | if (ecb_expect_false (ev_is_active (w))) |
2490 | return; |
4532 | return; |
2491 | |
4533 | |
2492 | EV_FREQUENT_CHECK; |
4534 | EV_FREQUENT_CHECK; |
2493 | |
4535 | |
2494 | ev_start (EV_A_ (W)w, 1); |
4536 | ev_start (EV_A_ (W)w, 1); |
2495 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4537 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2496 | |
4538 | |
2497 | EV_FREQUENT_CHECK; |
4539 | EV_FREQUENT_CHECK; |
2498 | } |
4540 | } |
2499 | |
4541 | |
2500 | void |
4542 | void |
2501 | ev_child_stop (EV_P_ ev_child *w) |
4543 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2502 | { |
4544 | { |
2503 | clear_pending (EV_A_ (W)w); |
4545 | clear_pending (EV_A_ (W)w); |
2504 | if (expect_false (!ev_is_active (w))) |
4546 | if (ecb_expect_false (!ev_is_active (w))) |
2505 | return; |
4547 | return; |
2506 | |
4548 | |
2507 | EV_FREQUENT_CHECK; |
4549 | EV_FREQUENT_CHECK; |
2508 | |
4550 | |
2509 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4551 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2510 | ev_stop (EV_A_ (W)w); |
4552 | ev_stop (EV_A_ (W)w); |
2511 | |
4553 | |
2512 | EV_FREQUENT_CHECK; |
4554 | EV_FREQUENT_CHECK; |
2513 | } |
4555 | } |
|
|
4556 | |
|
|
4557 | #endif |
2514 | |
4558 | |
2515 | #if EV_STAT_ENABLE |
4559 | #if EV_STAT_ENABLE |
2516 | |
4560 | |
2517 | # ifdef _WIN32 |
4561 | # ifdef _WIN32 |
2518 | # undef lstat |
4562 | # undef lstat |
… | |
… | |
2521 | |
4565 | |
2522 | #define DEF_STAT_INTERVAL 5.0074891 |
4566 | #define DEF_STAT_INTERVAL 5.0074891 |
2523 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4567 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2524 | #define MIN_STAT_INTERVAL 0.1074891 |
4568 | #define MIN_STAT_INTERVAL 0.1074891 |
2525 | |
4569 | |
2526 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4570 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2527 | |
4571 | |
2528 | #if EV_USE_INOTIFY |
4572 | #if EV_USE_INOTIFY |
2529 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2530 | |
4573 | |
2531 | static void noinline |
4574 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
4575 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
4576 | |
|
|
4577 | ecb_noinline |
|
|
4578 | static void |
2532 | infy_add (EV_P_ ev_stat *w) |
4579 | infy_add (EV_P_ ev_stat *w) |
2533 | { |
4580 | { |
2534 | 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); |
4581 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4582 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4583 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4584 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2535 | |
4585 | |
2536 | if (w->wd < 0) |
4586 | if (w->wd >= 0) |
|
|
4587 | { |
|
|
4588 | struct statfs sfs; |
|
|
4589 | |
|
|
4590 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
4591 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
4592 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
4593 | |
|
|
4594 | if (!fs_2625) |
|
|
4595 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4596 | else if (!statfs (w->path, &sfs) |
|
|
4597 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4598 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4599 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
4600 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4601 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4602 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4603 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
4604 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4605 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
4606 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
4607 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
4608 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
4609 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
4610 | else |
|
|
4611 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2537 | { |
4612 | } |
|
|
4613 | else |
|
|
4614 | { |
|
|
4615 | /* can't use inotify, continue to stat */ |
2538 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4616 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2539 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2540 | |
4617 | |
2541 | /* monitor some parent directory for speedup hints */ |
4618 | /* if path is not there, monitor some parent directory for speedup hints */ |
2542 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
4619 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2543 | /* but an efficiency issue only */ |
4620 | /* but an efficiency issue only */ |
2544 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
4621 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2545 | { |
4622 | { |
2546 | char path [4096]; |
4623 | char path [4096]; |
… | |
… | |
2556 | if (!pend || pend == path) |
4633 | if (!pend || pend == path) |
2557 | break; |
4634 | break; |
2558 | |
4635 | |
2559 | *pend = 0; |
4636 | *pend = 0; |
2560 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4637 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2561 | } |
4638 | } |
2562 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4639 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2563 | } |
4640 | } |
2564 | } |
4641 | } |
2565 | |
4642 | |
2566 | if (w->wd >= 0) |
4643 | if (w->wd >= 0) |
2567 | { |
|
|
2568 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4644 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2569 | |
4645 | |
2570 | /* now local changes will be tracked by inotify, but remote changes won't */ |
4646 | /* now re-arm timer, if required */ |
2571 | /* unless the filesystem it known to be local, we therefore still poll */ |
4647 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2572 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2573 | struct statfs sfs; |
|
|
2574 | |
|
|
2575 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2576 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2577 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2578 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2579 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2580 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2581 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2582 | return; |
|
|
2583 | |
|
|
2584 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2585 | ev_timer_again (EV_A_ &w->timer); |
4648 | ev_timer_again (EV_A_ &w->timer); |
2586 | } |
4649 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2587 | } |
4650 | } |
2588 | |
4651 | |
2589 | static void noinline |
4652 | ecb_noinline |
|
|
4653 | static void |
2590 | infy_del (EV_P_ ev_stat *w) |
4654 | infy_del (EV_P_ ev_stat *w) |
2591 | { |
4655 | { |
2592 | int slot; |
4656 | int slot; |
2593 | int wd = w->wd; |
4657 | int wd = w->wd; |
2594 | |
4658 | |
2595 | if (wd < 0) |
4659 | if (wd < 0) |
2596 | return; |
4660 | return; |
2597 | |
4661 | |
2598 | w->wd = -2; |
4662 | w->wd = -2; |
2599 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4663 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2600 | wlist_del (&fs_hash [slot].head, (WL)w); |
4664 | wlist_del (&fs_hash [slot].head, (WL)w); |
2601 | |
4665 | |
2602 | /* remove this watcher, if others are watching it, they will rearm */ |
4666 | /* remove this watcher, if others are watching it, they will rearm */ |
2603 | inotify_rm_watch (fs_fd, wd); |
4667 | inotify_rm_watch (fs_fd, wd); |
2604 | } |
4668 | } |
2605 | |
4669 | |
2606 | static void noinline |
4670 | ecb_noinline |
|
|
4671 | static void |
2607 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4672 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2608 | { |
4673 | { |
2609 | if (slot < 0) |
4674 | if (slot < 0) |
2610 | /* overflow, need to check for all hash slots */ |
4675 | /* overflow, need to check for all hash slots */ |
2611 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4676 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2612 | infy_wd (EV_A_ slot, wd, ev); |
4677 | infy_wd (EV_A_ slot, wd, ev); |
2613 | else |
4678 | else |
2614 | { |
4679 | { |
2615 | WL w_; |
4680 | WL w_; |
2616 | |
4681 | |
2617 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4682 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2618 | { |
4683 | { |
2619 | ev_stat *w = (ev_stat *)w_; |
4684 | ev_stat *w = (ev_stat *)w_; |
2620 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4685 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2621 | |
4686 | |
2622 | if (w->wd == wd || wd == -1) |
4687 | if (w->wd == wd || wd == -1) |
2623 | { |
4688 | { |
2624 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4689 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2625 | { |
4690 | { |
2626 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4691 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2627 | w->wd = -1; |
4692 | w->wd = -1; |
2628 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4693 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2629 | } |
4694 | } |
2630 | |
4695 | |
2631 | stat_timer_cb (EV_A_ &w->timer, 0); |
4696 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2636 | |
4701 | |
2637 | static void |
4702 | static void |
2638 | infy_cb (EV_P_ ev_io *w, int revents) |
4703 | infy_cb (EV_P_ ev_io *w, int revents) |
2639 | { |
4704 | { |
2640 | char buf [EV_INOTIFY_BUFSIZE]; |
4705 | char buf [EV_INOTIFY_BUFSIZE]; |
2641 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2642 | int ofs; |
4706 | int ofs; |
2643 | int len = read (fs_fd, buf, sizeof (buf)); |
4707 | int len = read (fs_fd, buf, sizeof (buf)); |
2644 | |
4708 | |
2645 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4709 | for (ofs = 0; ofs < len; ) |
|
|
4710 | { |
|
|
4711 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2646 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4712 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4713 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4714 | } |
2647 | } |
4715 | } |
2648 | |
4716 | |
2649 | inline_size void |
4717 | inline_size ecb_cold |
|
|
4718 | void |
2650 | check_2625 (EV_P) |
4719 | ev_check_2625 (EV_P) |
2651 | { |
4720 | { |
2652 | /* kernels < 2.6.25 are borked |
4721 | /* kernels < 2.6.25 are borked |
2653 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4722 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2654 | */ |
4723 | */ |
2655 | struct utsname buf; |
4724 | if (ev_linux_version () < 0x020619) |
2656 | int major, minor, micro; |
|
|
2657 | |
|
|
2658 | if (uname (&buf)) |
|
|
2659 | return; |
4725 | return; |
2660 | |
4726 | |
2661 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2662 | return; |
|
|
2663 | |
|
|
2664 | if (major < 2 |
|
|
2665 | || (major == 2 && minor < 6) |
|
|
2666 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2667 | return; |
|
|
2668 | |
|
|
2669 | fs_2625 = 1; |
4727 | fs_2625 = 1; |
|
|
4728 | } |
|
|
4729 | |
|
|
4730 | inline_size int |
|
|
4731 | infy_newfd (void) |
|
|
4732 | { |
|
|
4733 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4734 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4735 | if (fd >= 0) |
|
|
4736 | return fd; |
|
|
4737 | #endif |
|
|
4738 | return inotify_init (); |
2670 | } |
4739 | } |
2671 | |
4740 | |
2672 | inline_size void |
4741 | inline_size void |
2673 | infy_init (EV_P) |
4742 | infy_init (EV_P) |
2674 | { |
4743 | { |
2675 | if (fs_fd != -2) |
4744 | if (fs_fd != -2) |
2676 | return; |
4745 | return; |
2677 | |
4746 | |
2678 | fs_fd = -1; |
4747 | fs_fd = -1; |
2679 | |
4748 | |
2680 | check_2625 (EV_A); |
4749 | ev_check_2625 (EV_A); |
2681 | |
4750 | |
2682 | fs_fd = inotify_init (); |
4751 | fs_fd = infy_newfd (); |
2683 | |
4752 | |
2684 | if (fs_fd >= 0) |
4753 | if (fs_fd >= 0) |
2685 | { |
4754 | { |
|
|
4755 | fd_intern (fs_fd); |
2686 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4756 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2687 | ev_set_priority (&fs_w, EV_MAXPRI); |
4757 | ev_set_priority (&fs_w, EV_MAXPRI); |
2688 | ev_io_start (EV_A_ &fs_w); |
4758 | ev_io_start (EV_A_ &fs_w); |
|
|
4759 | ev_unref (EV_A); |
2689 | } |
4760 | } |
2690 | } |
4761 | } |
2691 | |
4762 | |
2692 | inline_size void |
4763 | inline_size void |
2693 | infy_fork (EV_P) |
4764 | infy_fork (EV_P) |
… | |
… | |
2695 | int slot; |
4766 | int slot; |
2696 | |
4767 | |
2697 | if (fs_fd < 0) |
4768 | if (fs_fd < 0) |
2698 | return; |
4769 | return; |
2699 | |
4770 | |
|
|
4771 | ev_ref (EV_A); |
|
|
4772 | ev_io_stop (EV_A_ &fs_w); |
2700 | close (fs_fd); |
4773 | close (fs_fd); |
2701 | fs_fd = inotify_init (); |
4774 | fs_fd = infy_newfd (); |
2702 | |
4775 | |
|
|
4776 | if (fs_fd >= 0) |
|
|
4777 | { |
|
|
4778 | fd_intern (fs_fd); |
|
|
4779 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4780 | ev_io_start (EV_A_ &fs_w); |
|
|
4781 | ev_unref (EV_A); |
|
|
4782 | } |
|
|
4783 | |
2703 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4784 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2704 | { |
4785 | { |
2705 | WL w_ = fs_hash [slot].head; |
4786 | WL w_ = fs_hash [slot].head; |
2706 | fs_hash [slot].head = 0; |
4787 | fs_hash [slot].head = 0; |
2707 | |
4788 | |
2708 | while (w_) |
4789 | while (w_) |
… | |
… | |
2713 | w->wd = -1; |
4794 | w->wd = -1; |
2714 | |
4795 | |
2715 | if (fs_fd >= 0) |
4796 | if (fs_fd >= 0) |
2716 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4797 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2717 | else |
4798 | else |
|
|
4799 | { |
|
|
4800 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4801 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2718 | ev_timer_again (EV_A_ &w->timer); |
4802 | ev_timer_again (EV_A_ &w->timer); |
|
|
4803 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4804 | } |
2719 | } |
4805 | } |
2720 | } |
4806 | } |
2721 | } |
4807 | } |
2722 | |
4808 | |
2723 | #endif |
4809 | #endif |
… | |
… | |
2727 | #else |
4813 | #else |
2728 | # define EV_LSTAT(p,b) lstat (p, b) |
4814 | # define EV_LSTAT(p,b) lstat (p, b) |
2729 | #endif |
4815 | #endif |
2730 | |
4816 | |
2731 | void |
4817 | void |
2732 | ev_stat_stat (EV_P_ ev_stat *w) |
4818 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
2733 | { |
4819 | { |
2734 | if (lstat (w->path, &w->attr) < 0) |
4820 | if (lstat (w->path, &w->attr) < 0) |
2735 | w->attr.st_nlink = 0; |
4821 | w->attr.st_nlink = 0; |
2736 | else if (!w->attr.st_nlink) |
4822 | else if (!w->attr.st_nlink) |
2737 | w->attr.st_nlink = 1; |
4823 | w->attr.st_nlink = 1; |
2738 | } |
4824 | } |
2739 | |
4825 | |
2740 | static void noinline |
4826 | ecb_noinline |
|
|
4827 | static void |
2741 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4828 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2742 | { |
4829 | { |
2743 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4830 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2744 | |
4831 | |
2745 | /* we copy this here each the time so that */ |
4832 | ev_statdata prev = w->attr; |
2746 | /* prev has the old value when the callback gets invoked */ |
|
|
2747 | w->prev = w->attr; |
|
|
2748 | ev_stat_stat (EV_A_ w); |
4833 | ev_stat_stat (EV_A_ w); |
2749 | |
4834 | |
2750 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4835 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2751 | if ( |
4836 | if ( |
2752 | w->prev.st_dev != w->attr.st_dev |
4837 | prev.st_dev != w->attr.st_dev |
2753 | || w->prev.st_ino != w->attr.st_ino |
4838 | || prev.st_ino != w->attr.st_ino |
2754 | || w->prev.st_mode != w->attr.st_mode |
4839 | || prev.st_mode != w->attr.st_mode |
2755 | || w->prev.st_nlink != w->attr.st_nlink |
4840 | || prev.st_nlink != w->attr.st_nlink |
2756 | || w->prev.st_uid != w->attr.st_uid |
4841 | || prev.st_uid != w->attr.st_uid |
2757 | || w->prev.st_gid != w->attr.st_gid |
4842 | || prev.st_gid != w->attr.st_gid |
2758 | || w->prev.st_rdev != w->attr.st_rdev |
4843 | || prev.st_rdev != w->attr.st_rdev |
2759 | || w->prev.st_size != w->attr.st_size |
4844 | || prev.st_size != w->attr.st_size |
2760 | || w->prev.st_atime != w->attr.st_atime |
4845 | || prev.st_atime != w->attr.st_atime |
2761 | || w->prev.st_mtime != w->attr.st_mtime |
4846 | || prev.st_mtime != w->attr.st_mtime |
2762 | || w->prev.st_ctime != w->attr.st_ctime |
4847 | || prev.st_ctime != w->attr.st_ctime |
2763 | ) { |
4848 | ) { |
|
|
4849 | /* we only update w->prev on actual differences */ |
|
|
4850 | /* in case we test more often than invoke the callback, */ |
|
|
4851 | /* to ensure that prev is always different to attr */ |
|
|
4852 | w->prev = prev; |
|
|
4853 | |
2764 | #if EV_USE_INOTIFY |
4854 | #if EV_USE_INOTIFY |
2765 | if (fs_fd >= 0) |
4855 | if (fs_fd >= 0) |
2766 | { |
4856 | { |
2767 | infy_del (EV_A_ w); |
4857 | infy_del (EV_A_ w); |
2768 | infy_add (EV_A_ w); |
4858 | infy_add (EV_A_ w); |
… | |
… | |
2773 | ev_feed_event (EV_A_ w, EV_STAT); |
4863 | ev_feed_event (EV_A_ w, EV_STAT); |
2774 | } |
4864 | } |
2775 | } |
4865 | } |
2776 | |
4866 | |
2777 | void |
4867 | void |
2778 | ev_stat_start (EV_P_ ev_stat *w) |
4868 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
2779 | { |
4869 | { |
2780 | if (expect_false (ev_is_active (w))) |
4870 | if (ecb_expect_false (ev_is_active (w))) |
2781 | return; |
4871 | return; |
2782 | |
4872 | |
2783 | ev_stat_stat (EV_A_ w); |
4873 | ev_stat_stat (EV_A_ w); |
2784 | |
4874 | |
2785 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4875 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
2793 | |
4883 | |
2794 | if (fs_fd >= 0) |
4884 | if (fs_fd >= 0) |
2795 | infy_add (EV_A_ w); |
4885 | infy_add (EV_A_ w); |
2796 | else |
4886 | else |
2797 | #endif |
4887 | #endif |
|
|
4888 | { |
2798 | ev_timer_again (EV_A_ &w->timer); |
4889 | ev_timer_again (EV_A_ &w->timer); |
|
|
4890 | ev_unref (EV_A); |
|
|
4891 | } |
2799 | |
4892 | |
2800 | ev_start (EV_A_ (W)w, 1); |
4893 | ev_start (EV_A_ (W)w, 1); |
2801 | |
4894 | |
2802 | EV_FREQUENT_CHECK; |
4895 | EV_FREQUENT_CHECK; |
2803 | } |
4896 | } |
2804 | |
4897 | |
2805 | void |
4898 | void |
2806 | ev_stat_stop (EV_P_ ev_stat *w) |
4899 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
2807 | { |
4900 | { |
2808 | clear_pending (EV_A_ (W)w); |
4901 | clear_pending (EV_A_ (W)w); |
2809 | if (expect_false (!ev_is_active (w))) |
4902 | if (ecb_expect_false (!ev_is_active (w))) |
2810 | return; |
4903 | return; |
2811 | |
4904 | |
2812 | EV_FREQUENT_CHECK; |
4905 | EV_FREQUENT_CHECK; |
2813 | |
4906 | |
2814 | #if EV_USE_INOTIFY |
4907 | #if EV_USE_INOTIFY |
2815 | infy_del (EV_A_ w); |
4908 | infy_del (EV_A_ w); |
2816 | #endif |
4909 | #endif |
|
|
4910 | |
|
|
4911 | if (ev_is_active (&w->timer)) |
|
|
4912 | { |
|
|
4913 | ev_ref (EV_A); |
2817 | ev_timer_stop (EV_A_ &w->timer); |
4914 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4915 | } |
2818 | |
4916 | |
2819 | ev_stop (EV_A_ (W)w); |
4917 | ev_stop (EV_A_ (W)w); |
2820 | |
4918 | |
2821 | EV_FREQUENT_CHECK; |
4919 | EV_FREQUENT_CHECK; |
2822 | } |
4920 | } |
2823 | #endif |
4921 | #endif |
2824 | |
4922 | |
2825 | #if EV_IDLE_ENABLE |
4923 | #if EV_IDLE_ENABLE |
2826 | void |
4924 | void |
2827 | ev_idle_start (EV_P_ ev_idle *w) |
4925 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
2828 | { |
4926 | { |
2829 | if (expect_false (ev_is_active (w))) |
4927 | if (ecb_expect_false (ev_is_active (w))) |
2830 | return; |
4928 | return; |
2831 | |
4929 | |
2832 | pri_adjust (EV_A_ (W)w); |
4930 | pri_adjust (EV_A_ (W)w); |
2833 | |
4931 | |
2834 | EV_FREQUENT_CHECK; |
4932 | EV_FREQUENT_CHECK; |
… | |
… | |
2837 | int active = ++idlecnt [ABSPRI (w)]; |
4935 | int active = ++idlecnt [ABSPRI (w)]; |
2838 | |
4936 | |
2839 | ++idleall; |
4937 | ++idleall; |
2840 | ev_start (EV_A_ (W)w, active); |
4938 | ev_start (EV_A_ (W)w, active); |
2841 | |
4939 | |
2842 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4940 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
2843 | idles [ABSPRI (w)][active - 1] = w; |
4941 | idles [ABSPRI (w)][active - 1] = w; |
2844 | } |
4942 | } |
2845 | |
4943 | |
2846 | EV_FREQUENT_CHECK; |
4944 | EV_FREQUENT_CHECK; |
2847 | } |
4945 | } |
2848 | |
4946 | |
2849 | void |
4947 | void |
2850 | ev_idle_stop (EV_P_ ev_idle *w) |
4948 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
2851 | { |
4949 | { |
2852 | clear_pending (EV_A_ (W)w); |
4950 | clear_pending (EV_A_ (W)w); |
2853 | if (expect_false (!ev_is_active (w))) |
4951 | if (ecb_expect_false (!ev_is_active (w))) |
2854 | return; |
4952 | return; |
2855 | |
4953 | |
2856 | EV_FREQUENT_CHECK; |
4954 | EV_FREQUENT_CHECK; |
2857 | |
4955 | |
2858 | { |
4956 | { |
… | |
… | |
2867 | |
4965 | |
2868 | EV_FREQUENT_CHECK; |
4966 | EV_FREQUENT_CHECK; |
2869 | } |
4967 | } |
2870 | #endif |
4968 | #endif |
2871 | |
4969 | |
|
|
4970 | #if EV_PREPARE_ENABLE |
2872 | void |
4971 | void |
2873 | ev_prepare_start (EV_P_ ev_prepare *w) |
4972 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
2874 | { |
4973 | { |
2875 | if (expect_false (ev_is_active (w))) |
4974 | if (ecb_expect_false (ev_is_active (w))) |
2876 | return; |
4975 | return; |
2877 | |
4976 | |
2878 | EV_FREQUENT_CHECK; |
4977 | EV_FREQUENT_CHECK; |
2879 | |
4978 | |
2880 | ev_start (EV_A_ (W)w, ++preparecnt); |
4979 | ev_start (EV_A_ (W)w, ++preparecnt); |
2881 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4980 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
2882 | prepares [preparecnt - 1] = w; |
4981 | prepares [preparecnt - 1] = w; |
2883 | |
4982 | |
2884 | EV_FREQUENT_CHECK; |
4983 | EV_FREQUENT_CHECK; |
2885 | } |
4984 | } |
2886 | |
4985 | |
2887 | void |
4986 | void |
2888 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4987 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
2889 | { |
4988 | { |
2890 | clear_pending (EV_A_ (W)w); |
4989 | clear_pending (EV_A_ (W)w); |
2891 | if (expect_false (!ev_is_active (w))) |
4990 | if (ecb_expect_false (!ev_is_active (w))) |
2892 | return; |
4991 | return; |
2893 | |
4992 | |
2894 | EV_FREQUENT_CHECK; |
4993 | EV_FREQUENT_CHECK; |
2895 | |
4994 | |
2896 | { |
4995 | { |
… | |
… | |
2902 | |
5001 | |
2903 | ev_stop (EV_A_ (W)w); |
5002 | ev_stop (EV_A_ (W)w); |
2904 | |
5003 | |
2905 | EV_FREQUENT_CHECK; |
5004 | EV_FREQUENT_CHECK; |
2906 | } |
5005 | } |
|
|
5006 | #endif |
2907 | |
5007 | |
|
|
5008 | #if EV_CHECK_ENABLE |
2908 | void |
5009 | void |
2909 | ev_check_start (EV_P_ ev_check *w) |
5010 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
2910 | { |
5011 | { |
2911 | if (expect_false (ev_is_active (w))) |
5012 | if (ecb_expect_false (ev_is_active (w))) |
2912 | return; |
5013 | return; |
2913 | |
5014 | |
2914 | EV_FREQUENT_CHECK; |
5015 | EV_FREQUENT_CHECK; |
2915 | |
5016 | |
2916 | ev_start (EV_A_ (W)w, ++checkcnt); |
5017 | ev_start (EV_A_ (W)w, ++checkcnt); |
2917 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
5018 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
2918 | checks [checkcnt - 1] = w; |
5019 | checks [checkcnt - 1] = w; |
2919 | |
5020 | |
2920 | EV_FREQUENT_CHECK; |
5021 | EV_FREQUENT_CHECK; |
2921 | } |
5022 | } |
2922 | |
5023 | |
2923 | void |
5024 | void |
2924 | ev_check_stop (EV_P_ ev_check *w) |
5025 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
2925 | { |
5026 | { |
2926 | clear_pending (EV_A_ (W)w); |
5027 | clear_pending (EV_A_ (W)w); |
2927 | if (expect_false (!ev_is_active (w))) |
5028 | if (ecb_expect_false (!ev_is_active (w))) |
2928 | return; |
5029 | return; |
2929 | |
5030 | |
2930 | EV_FREQUENT_CHECK; |
5031 | EV_FREQUENT_CHECK; |
2931 | |
5032 | |
2932 | { |
5033 | { |
… | |
… | |
2938 | |
5039 | |
2939 | ev_stop (EV_A_ (W)w); |
5040 | ev_stop (EV_A_ (W)w); |
2940 | |
5041 | |
2941 | EV_FREQUENT_CHECK; |
5042 | EV_FREQUENT_CHECK; |
2942 | } |
5043 | } |
|
|
5044 | #endif |
2943 | |
5045 | |
2944 | #if EV_EMBED_ENABLE |
5046 | #if EV_EMBED_ENABLE |
2945 | void noinline |
5047 | ecb_noinline |
|
|
5048 | void |
2946 | ev_embed_sweep (EV_P_ ev_embed *w) |
5049 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
2947 | { |
5050 | { |
2948 | ev_loop (w->other, EVLOOP_NONBLOCK); |
5051 | ev_run (w->other, EVRUN_NOWAIT); |
2949 | } |
5052 | } |
2950 | |
5053 | |
2951 | static void |
5054 | static void |
2952 | embed_io_cb (EV_P_ ev_io *io, int revents) |
5055 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2953 | { |
5056 | { |
2954 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
5057 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2955 | |
5058 | |
2956 | if (ev_cb (w)) |
5059 | if (ev_cb (w)) |
2957 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
5060 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2958 | else |
5061 | else |
2959 | ev_loop (w->other, EVLOOP_NONBLOCK); |
5062 | ev_run (w->other, EVRUN_NOWAIT); |
2960 | } |
5063 | } |
2961 | |
5064 | |
2962 | static void |
5065 | static void |
2963 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
5066 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2964 | { |
5067 | { |
2965 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
5068 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2966 | |
5069 | |
2967 | { |
5070 | { |
2968 | struct ev_loop *loop = w->other; |
5071 | EV_P = w->other; |
2969 | |
5072 | |
2970 | while (fdchangecnt) |
5073 | while (fdchangecnt) |
2971 | { |
5074 | { |
2972 | fd_reify (EV_A); |
5075 | fd_reify (EV_A); |
2973 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
5076 | ev_run (EV_A_ EVRUN_NOWAIT); |
2974 | } |
5077 | } |
2975 | } |
5078 | } |
2976 | } |
5079 | } |
2977 | |
5080 | |
|
|
5081 | #if EV_FORK_ENABLE |
2978 | static void |
5082 | static void |
2979 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
5083 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
2980 | { |
5084 | { |
2981 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
5085 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2982 | |
5086 | |
2983 | ev_embed_stop (EV_A_ w); |
5087 | ev_embed_stop (EV_A_ w); |
2984 | |
5088 | |
2985 | { |
5089 | { |
2986 | struct ev_loop *loop = w->other; |
5090 | EV_P = w->other; |
2987 | |
5091 | |
2988 | ev_loop_fork (EV_A); |
5092 | ev_loop_fork (EV_A); |
2989 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
5093 | ev_run (EV_A_ EVRUN_NOWAIT); |
2990 | } |
5094 | } |
2991 | |
5095 | |
2992 | ev_embed_start (EV_A_ w); |
5096 | ev_embed_start (EV_A_ w); |
2993 | } |
5097 | } |
|
|
5098 | #endif |
2994 | |
5099 | |
2995 | #if 0 |
5100 | #if 0 |
2996 | static void |
5101 | static void |
2997 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
5102 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2998 | { |
5103 | { |
2999 | ev_idle_stop (EV_A_ idle); |
5104 | ev_idle_stop (EV_A_ idle); |
3000 | } |
5105 | } |
3001 | #endif |
5106 | #endif |
3002 | |
5107 | |
3003 | void |
5108 | void |
3004 | ev_embed_start (EV_P_ ev_embed *w) |
5109 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3005 | { |
5110 | { |
3006 | if (expect_false (ev_is_active (w))) |
5111 | if (ecb_expect_false (ev_is_active (w))) |
3007 | return; |
5112 | return; |
3008 | |
5113 | |
3009 | { |
5114 | { |
3010 | struct ev_loop *loop = w->other; |
5115 | EV_P = w->other; |
3011 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
5116 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3012 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
5117 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3013 | } |
5118 | } |
3014 | |
5119 | |
3015 | EV_FREQUENT_CHECK; |
5120 | EV_FREQUENT_CHECK; |
… | |
… | |
3019 | |
5124 | |
3020 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
5125 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3021 | ev_set_priority (&w->prepare, EV_MINPRI); |
5126 | ev_set_priority (&w->prepare, EV_MINPRI); |
3022 | ev_prepare_start (EV_A_ &w->prepare); |
5127 | ev_prepare_start (EV_A_ &w->prepare); |
3023 | |
5128 | |
|
|
5129 | #if EV_FORK_ENABLE |
3024 | ev_fork_init (&w->fork, embed_fork_cb); |
5130 | ev_fork_init (&w->fork, embed_fork_cb); |
3025 | ev_fork_start (EV_A_ &w->fork); |
5131 | ev_fork_start (EV_A_ &w->fork); |
|
|
5132 | #endif |
3026 | |
5133 | |
3027 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
5134 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3028 | |
5135 | |
3029 | ev_start (EV_A_ (W)w, 1); |
5136 | ev_start (EV_A_ (W)w, 1); |
3030 | |
5137 | |
3031 | EV_FREQUENT_CHECK; |
5138 | EV_FREQUENT_CHECK; |
3032 | } |
5139 | } |
3033 | |
5140 | |
3034 | void |
5141 | void |
3035 | ev_embed_stop (EV_P_ ev_embed *w) |
5142 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3036 | { |
5143 | { |
3037 | clear_pending (EV_A_ (W)w); |
5144 | clear_pending (EV_A_ (W)w); |
3038 | if (expect_false (!ev_is_active (w))) |
5145 | if (ecb_expect_false (!ev_is_active (w))) |
3039 | return; |
5146 | return; |
3040 | |
5147 | |
3041 | EV_FREQUENT_CHECK; |
5148 | EV_FREQUENT_CHECK; |
3042 | |
5149 | |
3043 | ev_io_stop (EV_A_ &w->io); |
5150 | ev_io_stop (EV_A_ &w->io); |
3044 | ev_prepare_stop (EV_A_ &w->prepare); |
5151 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
5152 | #if EV_FORK_ENABLE |
3045 | ev_fork_stop (EV_A_ &w->fork); |
5153 | ev_fork_stop (EV_A_ &w->fork); |
|
|
5154 | #endif |
|
|
5155 | |
|
|
5156 | ev_stop (EV_A_ (W)w); |
3046 | |
5157 | |
3047 | EV_FREQUENT_CHECK; |
5158 | EV_FREQUENT_CHECK; |
3048 | } |
5159 | } |
3049 | #endif |
5160 | #endif |
3050 | |
5161 | |
3051 | #if EV_FORK_ENABLE |
5162 | #if EV_FORK_ENABLE |
3052 | void |
5163 | void |
3053 | ev_fork_start (EV_P_ ev_fork *w) |
5164 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3054 | { |
5165 | { |
3055 | if (expect_false (ev_is_active (w))) |
5166 | if (ecb_expect_false (ev_is_active (w))) |
3056 | return; |
5167 | return; |
3057 | |
5168 | |
3058 | EV_FREQUENT_CHECK; |
5169 | EV_FREQUENT_CHECK; |
3059 | |
5170 | |
3060 | ev_start (EV_A_ (W)w, ++forkcnt); |
5171 | ev_start (EV_A_ (W)w, ++forkcnt); |
3061 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5172 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3062 | forks [forkcnt - 1] = w; |
5173 | forks [forkcnt - 1] = w; |
3063 | |
5174 | |
3064 | EV_FREQUENT_CHECK; |
5175 | EV_FREQUENT_CHECK; |
3065 | } |
5176 | } |
3066 | |
5177 | |
3067 | void |
5178 | void |
3068 | ev_fork_stop (EV_P_ ev_fork *w) |
5179 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3069 | { |
5180 | { |
3070 | clear_pending (EV_A_ (W)w); |
5181 | clear_pending (EV_A_ (W)w); |
3071 | if (expect_false (!ev_is_active (w))) |
5182 | if (ecb_expect_false (!ev_is_active (w))) |
3072 | return; |
5183 | return; |
3073 | |
5184 | |
3074 | EV_FREQUENT_CHECK; |
5185 | EV_FREQUENT_CHECK; |
3075 | |
5186 | |
3076 | { |
5187 | { |
… | |
… | |
3084 | |
5195 | |
3085 | EV_FREQUENT_CHECK; |
5196 | EV_FREQUENT_CHECK; |
3086 | } |
5197 | } |
3087 | #endif |
5198 | #endif |
3088 | |
5199 | |
|
|
5200 | #if EV_CLEANUP_ENABLE |
|
|
5201 | void |
|
|
5202 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5203 | { |
|
|
5204 | if (ecb_expect_false (ev_is_active (w))) |
|
|
5205 | return; |
|
|
5206 | |
|
|
5207 | EV_FREQUENT_CHECK; |
|
|
5208 | |
|
|
5209 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
5210 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
|
|
5211 | cleanups [cleanupcnt - 1] = w; |
|
|
5212 | |
|
|
5213 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
5214 | ev_unref (EV_A); |
|
|
5215 | EV_FREQUENT_CHECK; |
|
|
5216 | } |
|
|
5217 | |
|
|
5218 | void |
|
|
5219 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5220 | { |
|
|
5221 | clear_pending (EV_A_ (W)w); |
|
|
5222 | if (ecb_expect_false (!ev_is_active (w))) |
|
|
5223 | return; |
|
|
5224 | |
|
|
5225 | EV_FREQUENT_CHECK; |
|
|
5226 | ev_ref (EV_A); |
|
|
5227 | |
|
|
5228 | { |
|
|
5229 | int active = ev_active (w); |
|
|
5230 | |
|
|
5231 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
5232 | ev_active (cleanups [active - 1]) = active; |
|
|
5233 | } |
|
|
5234 | |
|
|
5235 | ev_stop (EV_A_ (W)w); |
|
|
5236 | |
|
|
5237 | EV_FREQUENT_CHECK; |
|
|
5238 | } |
|
|
5239 | #endif |
|
|
5240 | |
3089 | #if EV_ASYNC_ENABLE |
5241 | #if EV_ASYNC_ENABLE |
3090 | void |
5242 | void |
3091 | ev_async_start (EV_P_ ev_async *w) |
5243 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3092 | { |
5244 | { |
3093 | if (expect_false (ev_is_active (w))) |
5245 | if (ecb_expect_false (ev_is_active (w))) |
3094 | return; |
5246 | return; |
3095 | |
5247 | |
|
|
5248 | w->sent = 0; |
|
|
5249 | |
3096 | evpipe_init (EV_A); |
5250 | evpipe_init (EV_A); |
3097 | |
5251 | |
3098 | EV_FREQUENT_CHECK; |
5252 | EV_FREQUENT_CHECK; |
3099 | |
5253 | |
3100 | ev_start (EV_A_ (W)w, ++asynccnt); |
5254 | ev_start (EV_A_ (W)w, ++asynccnt); |
3101 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5255 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3102 | asyncs [asynccnt - 1] = w; |
5256 | asyncs [asynccnt - 1] = w; |
3103 | |
5257 | |
3104 | EV_FREQUENT_CHECK; |
5258 | EV_FREQUENT_CHECK; |
3105 | } |
5259 | } |
3106 | |
5260 | |
3107 | void |
5261 | void |
3108 | ev_async_stop (EV_P_ ev_async *w) |
5262 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3109 | { |
5263 | { |
3110 | clear_pending (EV_A_ (W)w); |
5264 | clear_pending (EV_A_ (W)w); |
3111 | if (expect_false (!ev_is_active (w))) |
5265 | if (ecb_expect_false (!ev_is_active (w))) |
3112 | return; |
5266 | return; |
3113 | |
5267 | |
3114 | EV_FREQUENT_CHECK; |
5268 | EV_FREQUENT_CHECK; |
3115 | |
5269 | |
3116 | { |
5270 | { |
… | |
… | |
3124 | |
5278 | |
3125 | EV_FREQUENT_CHECK; |
5279 | EV_FREQUENT_CHECK; |
3126 | } |
5280 | } |
3127 | |
5281 | |
3128 | void |
5282 | void |
3129 | ev_async_send (EV_P_ ev_async *w) |
5283 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3130 | { |
5284 | { |
3131 | w->sent = 1; |
5285 | w->sent = 1; |
3132 | evpipe_write (EV_A_ &gotasync); |
5286 | evpipe_write (EV_A_ &async_pending); |
3133 | } |
5287 | } |
3134 | #endif |
5288 | #endif |
3135 | |
5289 | |
3136 | /*****************************************************************************/ |
5290 | /*****************************************************************************/ |
3137 | |
5291 | |
… | |
… | |
3171 | |
5325 | |
3172 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5326 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3173 | } |
5327 | } |
3174 | |
5328 | |
3175 | void |
5329 | void |
3176 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5330 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3177 | { |
5331 | { |
3178 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5332 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3179 | |
|
|
3180 | if (expect_false (!once)) |
|
|
3181 | { |
|
|
3182 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
|
|
3183 | return; |
|
|
3184 | } |
|
|
3185 | |
5333 | |
3186 | once->cb = cb; |
5334 | once->cb = cb; |
3187 | once->arg = arg; |
5335 | once->arg = arg; |
3188 | |
5336 | |
3189 | ev_init (&once->io, once_cb_io); |
5337 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3201 | } |
5349 | } |
3202 | } |
5350 | } |
3203 | |
5351 | |
3204 | /*****************************************************************************/ |
5352 | /*****************************************************************************/ |
3205 | |
5353 | |
3206 | #if 0 |
5354 | #if EV_WALK_ENABLE |
|
|
5355 | ecb_cold |
3207 | void |
5356 | void |
3208 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5357 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3209 | { |
5358 | { |
3210 | int i, j; |
5359 | int i, j; |
3211 | ev_watcher_list *wl, *wn; |
5360 | ev_watcher_list *wl, *wn; |
3212 | |
5361 | |
3213 | if (types & (EV_IO | EV_EMBED)) |
5362 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3227 | #if EV_USE_INOTIFY |
5376 | #if EV_USE_INOTIFY |
3228 | if (ev_cb ((ev_io *)wl) == infy_cb) |
5377 | if (ev_cb ((ev_io *)wl) == infy_cb) |
3229 | ; |
5378 | ; |
3230 | else |
5379 | else |
3231 | #endif |
5380 | #endif |
3232 | if ((ev_io *)wl != &pipeev) |
5381 | if ((ev_io *)wl != &pipe_w) |
3233 | if (types & EV_IO) |
5382 | if (types & EV_IO) |
3234 | cb (EV_A_ EV_IO, wl); |
5383 | cb (EV_A_ EV_IO, wl); |
3235 | |
5384 | |
3236 | wl = wn; |
5385 | wl = wn; |
3237 | } |
5386 | } |
… | |
… | |
3256 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5405 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3257 | #endif |
5406 | #endif |
3258 | |
5407 | |
3259 | #if EV_IDLE_ENABLE |
5408 | #if EV_IDLE_ENABLE |
3260 | if (types & EV_IDLE) |
5409 | if (types & EV_IDLE) |
3261 | for (j = NUMPRI; i--; ) |
5410 | for (j = NUMPRI; j--; ) |
3262 | for (i = idlecnt [j]; i--; ) |
5411 | for (i = idlecnt [j]; i--; ) |
3263 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5412 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3264 | #endif |
5413 | #endif |
3265 | |
5414 | |
3266 | #if EV_FORK_ENABLE |
5415 | #if EV_FORK_ENABLE |
… | |
… | |
3274 | if (types & EV_ASYNC) |
5423 | if (types & EV_ASYNC) |
3275 | for (i = asynccnt; i--; ) |
5424 | for (i = asynccnt; i--; ) |
3276 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
5425 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3277 | #endif |
5426 | #endif |
3278 | |
5427 | |
|
|
5428 | #if EV_PREPARE_ENABLE |
3279 | if (types & EV_PREPARE) |
5429 | if (types & EV_PREPARE) |
3280 | for (i = preparecnt; i--; ) |
5430 | for (i = preparecnt; i--; ) |
3281 | #if EV_EMBED_ENABLE |
5431 | # if EV_EMBED_ENABLE |
3282 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
5432 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3283 | #endif |
5433 | # endif |
3284 | cb (EV_A_ EV_PREPARE, prepares [i]); |
5434 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
5435 | #endif |
3285 | |
5436 | |
|
|
5437 | #if EV_CHECK_ENABLE |
3286 | if (types & EV_CHECK) |
5438 | if (types & EV_CHECK) |
3287 | for (i = checkcnt; i--; ) |
5439 | for (i = checkcnt; i--; ) |
3288 | cb (EV_A_ EV_CHECK, checks [i]); |
5440 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
5441 | #endif |
3289 | |
5442 | |
|
|
5443 | #if EV_SIGNAL_ENABLE |
3290 | if (types & EV_SIGNAL) |
5444 | if (types & EV_SIGNAL) |
3291 | for (i = 0; i < signalmax; ++i) |
5445 | for (i = 0; i < EV_NSIG - 1; ++i) |
3292 | for (wl = signals [i].head; wl; ) |
5446 | for (wl = signals [i].head; wl; ) |
3293 | { |
5447 | { |
3294 | wn = wl->next; |
5448 | wn = wl->next; |
3295 | cb (EV_A_ EV_SIGNAL, wl); |
5449 | cb (EV_A_ EV_SIGNAL, wl); |
3296 | wl = wn; |
5450 | wl = wn; |
3297 | } |
5451 | } |
|
|
5452 | #endif |
3298 | |
5453 | |
|
|
5454 | #if EV_CHILD_ENABLE |
3299 | if (types & EV_CHILD) |
5455 | if (types & EV_CHILD) |
3300 | for (i = EV_PID_HASHSIZE; i--; ) |
5456 | for (i = (EV_PID_HASHSIZE); i--; ) |
3301 | for (wl = childs [i]; wl; ) |
5457 | for (wl = childs [i]; wl; ) |
3302 | { |
5458 | { |
3303 | wn = wl->next; |
5459 | wn = wl->next; |
3304 | cb (EV_A_ EV_CHILD, wl); |
5460 | cb (EV_A_ EV_CHILD, wl); |
3305 | wl = wn; |
5461 | wl = wn; |
3306 | } |
5462 | } |
|
|
5463 | #endif |
3307 | /* EV_STAT 0x00001000 /* stat data changed */ |
5464 | /* EV_STAT 0x00001000 /* stat data changed */ |
3308 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
5465 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3309 | } |
5466 | } |
3310 | #endif |
5467 | #endif |
3311 | |
5468 | |
3312 | #if EV_MULTIPLICITY |
5469 | #if EV_MULTIPLICITY |
3313 | #include "ev_wrap.h" |
5470 | #include "ev_wrap.h" |
3314 | #endif |
5471 | #endif |
3315 | |
5472 | |
3316 | #ifdef __cplusplus |
|
|
3317 | } |
|
|
3318 | #endif |
|
|
3319 | |
|
|