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 |
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
63 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
64 | # endif |
66 | # endif |
65 | |
67 | |
66 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
67 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
79 | # endif |
81 | # endif |
80 | # endif |
82 | # endif |
81 | |
83 | |
|
|
84 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
87 | # endif |
85 | # else |
88 | # else |
|
|
89 | # undef EV_USE_NANOSLEEP |
86 | # 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 |
87 | # endif |
96 | # endif |
|
|
97 | # else |
|
|
98 | # undef EV_USE_SELECT |
|
|
99 | # define EV_USE_SELECT 0 |
88 | # endif |
100 | # endif |
89 | |
101 | |
|
|
102 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
105 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
106 | # else |
|
|
107 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
109 | # endif |
105 | |
110 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
109 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
114 | # endif |
|
|
115 | # else |
|
|
116 | # undef EV_USE_EPOLL |
|
|
117 | # define EV_USE_EPOLL 0 |
112 | # endif |
118 | # endif |
113 | |
119 | |
114 | # ifndef EV_USE_KQUEUE |
120 | # if HAVE_LINUX_AIO_ABI_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
121 | # ifndef EV_USE_LINUXAIO |
116 | # define EV_USE_KQUEUE 1 |
122 | # define EV_USE_LINUXAIO EV_FEATURE_BACKENDS |
117 | # else |
|
|
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
123 | # endif |
|
|
124 | # else |
|
|
125 | # undef EV_USE_LINUXAIO |
|
|
126 | # define EV_USE_LINUXAIO 0 |
120 | # endif |
127 | # endif |
121 | |
128 | |
122 | # ifndef EV_USE_PORT |
129 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
130 | # ifndef EV_USE_KQUEUE |
124 | # define EV_USE_PORT 1 |
131 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
125 | # else |
|
|
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
132 | # endif |
|
|
133 | # else |
|
|
134 | # undef EV_USE_KQUEUE |
|
|
135 | # define EV_USE_KQUEUE 0 |
128 | # endif |
136 | # endif |
129 | |
137 | |
|
|
138 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
130 | # ifndef EV_USE_INOTIFY |
139 | # ifndef EV_USE_PORT |
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
140 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
132 | # define EV_USE_INOTIFY 1 |
|
|
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
|
|
135 | # endif |
141 | # endif |
|
|
142 | # else |
|
|
143 | # undef EV_USE_PORT |
|
|
144 | # define EV_USE_PORT 0 |
136 | # endif |
145 | # endif |
137 | |
146 | |
|
|
147 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # ifndef EV_USE_EVENTFD |
148 | # ifndef EV_USE_INOTIFY |
139 | # if HAVE_EVENTFD |
149 | # define EV_USE_INOTIFY EV_FEATURE_OS |
140 | # define EV_USE_EVENTFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_EVENTFD 0 |
|
|
143 | # endif |
150 | # endif |
|
|
151 | # else |
|
|
152 | # undef EV_USE_INOTIFY |
|
|
153 | # define EV_USE_INOTIFY 0 |
|
|
154 | # endif |
|
|
155 | |
|
|
156 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
157 | # ifndef EV_USE_SIGNALFD |
|
|
158 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
159 | # endif |
|
|
160 | # else |
|
|
161 | # undef EV_USE_SIGNALFD |
|
|
162 | # define EV_USE_SIGNALFD 0 |
|
|
163 | # endif |
|
|
164 | |
|
|
165 | # if HAVE_EVENTFD |
|
|
166 | # ifndef EV_USE_EVENTFD |
|
|
167 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
168 | # endif |
|
|
169 | # else |
|
|
170 | # undef EV_USE_EVENTFD |
|
|
171 | # define EV_USE_EVENTFD 0 |
144 | # endif |
172 | # endif |
145 | |
173 | |
146 | #endif |
174 | #endif |
147 | |
175 | |
148 | #include <math.h> |
176 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
177 | * a limit of 1024 into their select. Where people have brains, |
|
|
178 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
179 | * ordered to have a vacuum, or they do anything for money. |
|
|
180 | * This might help. Or not. |
|
|
181 | * Note that this must be defined early, as other include files |
|
|
182 | * will rely on this define as well. |
|
|
183 | */ |
|
|
184 | #define _DARWIN_UNLIMITED_SELECT 1 |
|
|
185 | |
149 | #include <stdlib.h> |
186 | #include <stdlib.h> |
|
|
187 | #include <string.h> |
150 | #include <fcntl.h> |
188 | #include <fcntl.h> |
151 | #include <stddef.h> |
189 | #include <stddef.h> |
152 | |
190 | |
153 | #include <stdio.h> |
191 | #include <stdio.h> |
154 | |
192 | |
155 | #include <assert.h> |
193 | #include <assert.h> |
156 | #include <errno.h> |
194 | #include <errno.h> |
157 | #include <sys/types.h> |
195 | #include <sys/types.h> |
158 | #include <time.h> |
196 | #include <time.h> |
|
|
197 | #include <limits.h> |
159 | |
198 | |
160 | #include <signal.h> |
199 | #include <signal.h> |
161 | |
200 | |
162 | #ifdef EV_H |
201 | #ifdef EV_H |
163 | # include EV_H |
202 | # include EV_H |
164 | #else |
203 | #else |
165 | # include "ev.h" |
204 | # include "ev.h" |
|
|
205 | #endif |
|
|
206 | |
|
|
207 | #if EV_NO_THREADS |
|
|
208 | # undef EV_NO_SMP |
|
|
209 | # define EV_NO_SMP 1 |
|
|
210 | # undef ECB_NO_THREADS |
|
|
211 | # define ECB_NO_THREADS 1 |
|
|
212 | #endif |
|
|
213 | #if EV_NO_SMP |
|
|
214 | # undef EV_NO_SMP |
|
|
215 | # define ECB_NO_SMP 1 |
166 | #endif |
216 | #endif |
167 | |
217 | |
168 | #ifndef _WIN32 |
218 | #ifndef _WIN32 |
169 | # include <sys/time.h> |
219 | # include <sys/time.h> |
170 | # include <sys/wait.h> |
220 | # include <sys/wait.h> |
171 | # include <unistd.h> |
221 | # include <unistd.h> |
172 | #else |
222 | #else |
173 | # include <io.h> |
223 | # include <io.h> |
174 | # define WIN32_LEAN_AND_MEAN |
224 | # define WIN32_LEAN_AND_MEAN |
|
|
225 | # include <winsock2.h> |
175 | # include <windows.h> |
226 | # include <windows.h> |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
227 | # ifndef EV_SELECT_IS_WINSOCKET |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
228 | # define EV_SELECT_IS_WINSOCKET 1 |
178 | # endif |
229 | # endif |
|
|
230 | # undef EV_AVOID_STDIO |
179 | #endif |
231 | #endif |
180 | |
232 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
233 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
182 | |
234 | |
|
|
235 | /* try to deduce the maximum number of signals on this platform */ |
|
|
236 | #if defined EV_NSIG |
|
|
237 | /* use what's provided */ |
|
|
238 | #elif defined NSIG |
|
|
239 | # define EV_NSIG (NSIG) |
|
|
240 | #elif defined _NSIG |
|
|
241 | # define EV_NSIG (_NSIG) |
|
|
242 | #elif defined SIGMAX |
|
|
243 | # define EV_NSIG (SIGMAX+1) |
|
|
244 | #elif defined SIG_MAX |
|
|
245 | # define EV_NSIG (SIG_MAX+1) |
|
|
246 | #elif defined _SIG_MAX |
|
|
247 | # define EV_NSIG (_SIG_MAX+1) |
|
|
248 | #elif defined MAXSIG |
|
|
249 | # define EV_NSIG (MAXSIG+1) |
|
|
250 | #elif defined MAX_SIG |
|
|
251 | # define EV_NSIG (MAX_SIG+1) |
|
|
252 | #elif defined SIGARRAYSIZE |
|
|
253 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
254 | #elif defined _sys_nsig |
|
|
255 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
256 | #else |
|
|
257 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
|
|
258 | #endif |
|
|
259 | |
|
|
260 | #ifndef EV_USE_FLOOR |
|
|
261 | # define EV_USE_FLOOR 0 |
|
|
262 | #endif |
|
|
263 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
264 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
265 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
266 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
186 | # else |
267 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
268 | # define EV_USE_CLOCK_SYSCALL 0 |
188 | # endif |
269 | # endif |
189 | #endif |
270 | #endif |
190 | |
271 | |
|
|
272 | #if !(_POSIX_TIMERS > 0) |
|
|
273 | # ifndef EV_USE_MONOTONIC |
|
|
274 | # define EV_USE_MONOTONIC 0 |
|
|
275 | # endif |
|
|
276 | # ifndef EV_USE_REALTIME |
|
|
277 | # define EV_USE_REALTIME 0 |
|
|
278 | # endif |
|
|
279 | #endif |
|
|
280 | |
191 | #ifndef EV_USE_MONOTONIC |
281 | #ifndef EV_USE_MONOTONIC |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
282 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
193 | # define EV_USE_MONOTONIC 1 |
283 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
194 | # else |
284 | # else |
195 | # define EV_USE_MONOTONIC 0 |
285 | # define EV_USE_MONOTONIC 0 |
196 | # endif |
286 | # endif |
197 | #endif |
287 | #endif |
198 | |
288 | |
… | |
… | |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
290 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
201 | #endif |
291 | #endif |
202 | |
292 | |
203 | #ifndef EV_USE_NANOSLEEP |
293 | #ifndef EV_USE_NANOSLEEP |
204 | # if _POSIX_C_SOURCE >= 199309L |
294 | # if _POSIX_C_SOURCE >= 199309L |
205 | # define EV_USE_NANOSLEEP 1 |
295 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
206 | # else |
296 | # else |
207 | # define EV_USE_NANOSLEEP 0 |
297 | # define EV_USE_NANOSLEEP 0 |
208 | # endif |
298 | # endif |
209 | #endif |
299 | #endif |
210 | |
300 | |
211 | #ifndef EV_USE_SELECT |
301 | #ifndef EV_USE_SELECT |
212 | # define EV_USE_SELECT 1 |
302 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
213 | #endif |
303 | #endif |
214 | |
304 | |
215 | #ifndef EV_USE_POLL |
305 | #ifndef EV_USE_POLL |
216 | # ifdef _WIN32 |
306 | # ifdef _WIN32 |
217 | # define EV_USE_POLL 0 |
307 | # define EV_USE_POLL 0 |
218 | # else |
308 | # else |
219 | # define EV_USE_POLL 1 |
309 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
220 | # endif |
310 | # endif |
221 | #endif |
311 | #endif |
222 | |
312 | |
223 | #ifndef EV_USE_EPOLL |
313 | #ifndef EV_USE_EPOLL |
224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
314 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
225 | # define EV_USE_EPOLL 1 |
315 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
226 | # else |
316 | # else |
227 | # define EV_USE_EPOLL 0 |
317 | # define EV_USE_EPOLL 0 |
228 | # endif |
318 | # endif |
229 | #endif |
319 | #endif |
230 | |
320 | |
… | |
… | |
234 | |
324 | |
235 | #ifndef EV_USE_PORT |
325 | #ifndef EV_USE_PORT |
236 | # define EV_USE_PORT 0 |
326 | # define EV_USE_PORT 0 |
237 | #endif |
327 | #endif |
238 | |
328 | |
|
|
329 | #ifndef EV_USE_LINUXAIO |
|
|
330 | # if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */ |
|
|
331 | # define EV_USE_LINUXAIO 1 |
|
|
332 | # else |
|
|
333 | # define EV_USE_LINUXAIO 0 |
|
|
334 | # endif |
|
|
335 | #endif |
|
|
336 | |
|
|
337 | #ifndef EV_USE_IOURING |
|
|
338 | # if __linux |
|
|
339 | # define EV_USE_IOURING 0 |
|
|
340 | # else |
|
|
341 | # define EV_USE_IOURING 0 |
|
|
342 | # endif |
|
|
343 | #endif |
|
|
344 | |
239 | #ifndef EV_USE_INOTIFY |
345 | #ifndef EV_USE_INOTIFY |
240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
346 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
241 | # define EV_USE_INOTIFY 1 |
347 | # define EV_USE_INOTIFY EV_FEATURE_OS |
242 | # else |
348 | # else |
243 | # define EV_USE_INOTIFY 0 |
349 | # define EV_USE_INOTIFY 0 |
244 | # endif |
350 | # endif |
245 | #endif |
351 | #endif |
246 | |
352 | |
247 | #ifndef EV_PID_HASHSIZE |
353 | #ifndef EV_PID_HASHSIZE |
248 | # if EV_MINIMAL |
354 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
249 | # define EV_PID_HASHSIZE 1 |
|
|
250 | # else |
|
|
251 | # define EV_PID_HASHSIZE 16 |
|
|
252 | # endif |
|
|
253 | #endif |
355 | #endif |
254 | |
356 | |
255 | #ifndef EV_INOTIFY_HASHSIZE |
357 | #ifndef EV_INOTIFY_HASHSIZE |
256 | # if EV_MINIMAL |
358 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
257 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
258 | # else |
|
|
259 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
260 | # endif |
|
|
261 | #endif |
359 | #endif |
262 | |
360 | |
263 | #ifndef EV_USE_EVENTFD |
361 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
362 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
363 | # define EV_USE_EVENTFD EV_FEATURE_OS |
266 | # else |
364 | # else |
267 | # define EV_USE_EVENTFD 0 |
365 | # define EV_USE_EVENTFD 0 |
|
|
366 | # endif |
|
|
367 | #endif |
|
|
368 | |
|
|
369 | #ifndef EV_USE_SIGNALFD |
|
|
370 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
371 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
372 | # else |
|
|
373 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
374 | # endif |
269 | #endif |
375 | #endif |
270 | |
376 | |
271 | #if 0 /* debugging */ |
377 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
378 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
379 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
380 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
381 | #endif |
276 | |
382 | |
277 | #ifndef EV_VERIFY |
383 | #ifndef EV_VERIFY |
278 | # define EV_VERIFY !EV_MINIMAL |
384 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
279 | #endif |
385 | #endif |
280 | |
386 | |
281 | #ifndef EV_USE_4HEAP |
387 | #ifndef EV_USE_4HEAP |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
388 | # define EV_USE_4HEAP EV_FEATURE_DATA |
283 | #endif |
389 | #endif |
284 | |
390 | |
285 | #ifndef EV_HEAP_CACHE_AT |
391 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
392 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
|
|
393 | #endif |
|
|
394 | |
|
|
395 | #ifdef __ANDROID__ |
|
|
396 | /* supposedly, android doesn't typedef fd_mask */ |
|
|
397 | # undef EV_USE_SELECT |
|
|
398 | # define EV_USE_SELECT 0 |
|
|
399 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
400 | # undef EV_USE_CLOCK_SYSCALL |
|
|
401 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
402 | #endif |
|
|
403 | |
|
|
404 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
405 | #ifdef _AIX |
|
|
406 | /* AIX has a completely broken poll.h header */ |
|
|
407 | # undef EV_USE_POLL |
|
|
408 | # define EV_USE_POLL 0 |
287 | #endif |
409 | #endif |
288 | |
410 | |
289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
411 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
290 | /* which makes programs even slower. might work on other unices, too. */ |
412 | /* which makes programs even slower. might work on other unices, too. */ |
291 | #if EV_USE_CLOCK_SYSCALL |
413 | #if EV_USE_CLOCK_SYSCALL |
292 | # include <syscall.h> |
414 | # include <sys/syscall.h> |
293 | # ifdef SYS_clock_gettime |
415 | # ifdef SYS_clock_gettime |
294 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
416 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
295 | # undef EV_USE_MONOTONIC |
417 | # undef EV_USE_MONOTONIC |
296 | # define EV_USE_MONOTONIC 1 |
418 | # define EV_USE_MONOTONIC 1 |
|
|
419 | # define EV_NEED_SYSCALL 1 |
297 | # else |
420 | # else |
298 | # undef EV_USE_CLOCK_SYSCALL |
421 | # undef EV_USE_CLOCK_SYSCALL |
299 | # define EV_USE_CLOCK_SYSCALL 0 |
422 | # define EV_USE_CLOCK_SYSCALL 0 |
300 | # endif |
423 | # endif |
301 | #endif |
424 | #endif |
… | |
… | |
316 | # undef EV_USE_INOTIFY |
439 | # undef EV_USE_INOTIFY |
317 | # define EV_USE_INOTIFY 0 |
440 | # define EV_USE_INOTIFY 0 |
318 | #endif |
441 | #endif |
319 | |
442 | |
320 | #if !EV_USE_NANOSLEEP |
443 | #if !EV_USE_NANOSLEEP |
321 | # ifndef _WIN32 |
444 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
445 | # if !defined _WIN32 && !defined __hpux |
322 | # include <sys/select.h> |
446 | # include <sys/select.h> |
323 | # endif |
447 | # endif |
324 | #endif |
448 | #endif |
325 | |
449 | |
|
|
450 | #if EV_USE_LINUXAIO |
|
|
451 | # include <sys/syscall.h> |
|
|
452 | # if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */ |
|
|
453 | # define EV_NEED_SYSCALL 1 |
|
|
454 | # else |
|
|
455 | # undef EV_USE_LINUXAIO |
|
|
456 | # define EV_USE_LINUXAIO 0 |
|
|
457 | # endif |
|
|
458 | #endif |
|
|
459 | |
|
|
460 | #if EV_USE_IOURING |
|
|
461 | # include <sys/syscall.h> |
|
|
462 | # if !SYS_io_uring_setup && __linux && !__alpha |
|
|
463 | # define SYS_io_uring_setup 425 |
|
|
464 | # define SYS_io_uring_enter 426 |
|
|
465 | # define SYS_io_uring_wregister 427 |
|
|
466 | # endif |
|
|
467 | # if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */ |
|
|
468 | # define EV_NEED_SYSCALL 1 |
|
|
469 | # else |
|
|
470 | # undef EV_USE_IOURING |
|
|
471 | # define EV_USE_IOURING 0 |
|
|
472 | # endif |
|
|
473 | #endif |
|
|
474 | |
326 | #if EV_USE_INOTIFY |
475 | #if EV_USE_INOTIFY |
327 | # include <sys/utsname.h> |
|
|
328 | # include <sys/statfs.h> |
476 | # include <sys/statfs.h> |
329 | # include <sys/inotify.h> |
477 | # include <sys/inotify.h> |
330 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
478 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
331 | # ifndef IN_DONT_FOLLOW |
479 | # ifndef IN_DONT_FOLLOW |
332 | # undef EV_USE_INOTIFY |
480 | # undef EV_USE_INOTIFY |
333 | # define EV_USE_INOTIFY 0 |
481 | # define EV_USE_INOTIFY 0 |
334 | # endif |
482 | # endif |
335 | #endif |
483 | #endif |
336 | |
484 | |
337 | #if EV_SELECT_IS_WINSOCKET |
|
|
338 | # include <winsock.h> |
|
|
339 | #endif |
|
|
340 | |
|
|
341 | #if EV_USE_EVENTFD |
485 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
486 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
487 | # include <stdint.h> |
344 | # ifdef __cplusplus |
488 | # ifndef EFD_NONBLOCK |
345 | extern "C" { |
489 | # define EFD_NONBLOCK O_NONBLOCK |
346 | # endif |
490 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
491 | # ifndef EFD_CLOEXEC |
348 | # ifdef __cplusplus |
492 | # ifdef O_CLOEXEC |
349 | } |
493 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
494 | # else |
|
|
495 | # define EFD_CLOEXEC 02000000 |
|
|
496 | # endif |
350 | # endif |
497 | # endif |
|
|
498 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
499 | #endif |
|
|
500 | |
|
|
501 | #if EV_USE_SIGNALFD |
|
|
502 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
503 | # include <stdint.h> |
|
|
504 | # ifndef SFD_NONBLOCK |
|
|
505 | # define SFD_NONBLOCK O_NONBLOCK |
351 | #endif |
506 | # endif |
|
|
507 | # ifndef SFD_CLOEXEC |
|
|
508 | # ifdef O_CLOEXEC |
|
|
509 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
510 | # else |
|
|
511 | # define SFD_CLOEXEC 02000000 |
|
|
512 | # endif |
|
|
513 | # endif |
|
|
514 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
352 | |
515 | |
353 | /**/ |
516 | struct signalfd_siginfo |
|
|
517 | { |
|
|
518 | uint32_t ssi_signo; |
|
|
519 | char pad[128 - sizeof (uint32_t)]; |
|
|
520 | }; |
|
|
521 | #endif |
|
|
522 | |
|
|
523 | /*****************************************************************************/ |
354 | |
524 | |
355 | #if EV_VERIFY >= 3 |
525 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
526 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
357 | #else |
527 | #else |
358 | # define EV_FREQUENT_CHECK do { } while (0) |
528 | # define EV_FREQUENT_CHECK do { } while (0) |
359 | #endif |
529 | #endif |
360 | |
530 | |
361 | /* |
531 | /* |
362 | * This is used to avoid floating point rounding problems. |
532 | * This is used to work around floating point rounding problems. |
363 | * It is added to ev_rt_now when scheduling periodics |
|
|
364 | * to ensure progress, time-wise, even when rounding |
|
|
365 | * errors are against us. |
|
|
366 | * This value is good at least till the year 4000. |
533 | * This value is good at least till the year 4000. |
367 | * Better solutions welcome. |
|
|
368 | */ |
534 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
535 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
536 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
370 | |
537 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
538 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
539 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
374 | |
540 | |
|
|
541 | /* find a portable timestamp that is "always" in the future but fits into time_t. |
|
|
542 | * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t, |
|
|
543 | * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */ |
|
|
544 | #define EV_TSTAMP_HUGE \ |
|
|
545 | (sizeof (time_t) >= 8 ? 10000000000000. \ |
|
|
546 | : 0 < (time_t)4294967295 ? 4294967295. \ |
|
|
547 | : 2147483647.) \ |
|
|
548 | |
|
|
549 | #define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999 |
|
|
550 | #define EV_TS_FROM_USEC(us) us * 1e-6 |
|
|
551 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
552 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
553 | #define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6) |
|
|
554 | #define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9) |
|
|
555 | |
|
|
556 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
557 | /* ECB.H BEGIN */ |
|
|
558 | /* |
|
|
559 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
560 | * |
|
|
561 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
562 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
563 | * All rights reserved. |
|
|
564 | * |
|
|
565 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
566 | * tion, are permitted provided that the following conditions are met: |
|
|
567 | * |
|
|
568 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
569 | * this list of conditions and the following disclaimer. |
|
|
570 | * |
|
|
571 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
572 | * notice, this list of conditions and the following disclaimer in the |
|
|
573 | * documentation and/or other materials provided with the distribution. |
|
|
574 | * |
|
|
575 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
576 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
577 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
578 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
579 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
580 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
581 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
582 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
583 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
584 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
585 | * |
|
|
586 | * Alternatively, the contents of this file may be used under the terms of |
|
|
587 | * the GNU General Public License ("GPL") version 2 or any later version, |
|
|
588 | * in which case the provisions of the GPL are applicable instead of |
|
|
589 | * the above. If you wish to allow the use of your version of this file |
|
|
590 | * only under the terms of the GPL and not to allow others to use your |
|
|
591 | * version of this file under the BSD license, indicate your decision |
|
|
592 | * by deleting the provisions above and replace them with the notice |
|
|
593 | * and other provisions required by the GPL. If you do not delete the |
|
|
594 | * provisions above, a recipient may use your version of this file under |
|
|
595 | * either the BSD or the GPL. |
|
|
596 | */ |
|
|
597 | |
|
|
598 | #ifndef ECB_H |
|
|
599 | #define ECB_H |
|
|
600 | |
|
|
601 | /* 16 bits major, 16 bits minor */ |
|
|
602 | #define ECB_VERSION 0x00010006 |
|
|
603 | |
|
|
604 | #ifdef _WIN32 |
|
|
605 | typedef signed char int8_t; |
|
|
606 | typedef unsigned char uint8_t; |
|
|
607 | typedef signed short int16_t; |
|
|
608 | typedef unsigned short uint16_t; |
|
|
609 | typedef signed int int32_t; |
|
|
610 | typedef unsigned int uint32_t; |
375 | #if __GNUC__ >= 4 |
611 | #if __GNUC__ |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
612 | typedef signed long long int64_t; |
377 | # define noinline __attribute__ ((noinline)) |
613 | typedef unsigned long long uint64_t; |
|
|
614 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
615 | typedef signed __int64 int64_t; |
|
|
616 | typedef unsigned __int64 uint64_t; |
|
|
617 | #endif |
|
|
618 | #ifdef _WIN64 |
|
|
619 | #define ECB_PTRSIZE 8 |
|
|
620 | typedef uint64_t uintptr_t; |
|
|
621 | typedef int64_t intptr_t; |
|
|
622 | #else |
|
|
623 | #define ECB_PTRSIZE 4 |
|
|
624 | typedef uint32_t uintptr_t; |
|
|
625 | typedef int32_t intptr_t; |
|
|
626 | #endif |
378 | #else |
627 | #else |
379 | # define expect(expr,value) (expr) |
628 | #include <inttypes.h> |
380 | # define noinline |
629 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
381 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
630 | #define ECB_PTRSIZE 8 |
382 | # define inline |
631 | #else |
|
|
632 | #define ECB_PTRSIZE 4 |
|
|
633 | #endif |
383 | # endif |
634 | #endif |
|
|
635 | |
|
|
636 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
|
|
637 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
|
|
638 | |
|
|
639 | /* work around x32 idiocy by defining proper macros */ |
|
|
640 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
641 | #if _ILP32 |
|
|
642 | #define ECB_AMD64_X32 1 |
|
|
643 | #else |
|
|
644 | #define ECB_AMD64 1 |
384 | #endif |
645 | #endif |
|
|
646 | #endif |
385 | |
647 | |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
648 | /* many compilers define _GNUC_ to some versions but then only implement |
387 | #define expect_true(expr) expect ((expr) != 0, 1) |
649 | * what their idiot authors think are the "more important" extensions, |
388 | #define inline_size static inline |
650 | * causing enormous grief in return for some better fake benchmark numbers. |
389 | |
651 | * or so. |
390 | #if EV_MINIMAL |
652 | * we try to detect these and simply assume they are not gcc - if they have |
391 | # define inline_speed static noinline |
653 | * an issue with that they should have done it right in the first place. |
|
|
654 | */ |
|
|
655 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
656 | #define ECB_GCC_VERSION(major,minor) 0 |
392 | #else |
657 | #else |
|
|
658 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
659 | #endif |
|
|
660 | |
|
|
661 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
662 | |
|
|
663 | #if __clang__ && defined __has_builtin |
|
|
664 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
665 | #else |
|
|
666 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
667 | #endif |
|
|
668 | |
|
|
669 | #if __clang__ && defined __has_extension |
|
|
670 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
671 | #else |
|
|
672 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
673 | #endif |
|
|
674 | |
|
|
675 | #define ECB_CPP (__cplusplus+0) |
|
|
676 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
677 | #define ECB_CPP14 (__cplusplus >= 201402L) |
|
|
678 | #define ECB_CPP17 (__cplusplus >= 201703L) |
|
|
679 | |
|
|
680 | #if ECB_CPP |
|
|
681 | #define ECB_C 0 |
|
|
682 | #define ECB_STDC_VERSION 0 |
|
|
683 | #else |
|
|
684 | #define ECB_C 1 |
|
|
685 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
686 | #endif |
|
|
687 | |
|
|
688 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
689 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
690 | #define ECB_C17 (ECB_STDC_VERSION >= 201710L) |
|
|
691 | |
|
|
692 | #if ECB_CPP |
|
|
693 | #define ECB_EXTERN_C extern "C" |
|
|
694 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
695 | #define ECB_EXTERN_C_END } |
|
|
696 | #else |
|
|
697 | #define ECB_EXTERN_C extern |
|
|
698 | #define ECB_EXTERN_C_BEG |
|
|
699 | #define ECB_EXTERN_C_END |
|
|
700 | #endif |
|
|
701 | |
|
|
702 | /*****************************************************************************/ |
|
|
703 | |
|
|
704 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
705 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
706 | |
|
|
707 | #if ECB_NO_THREADS |
|
|
708 | #define ECB_NO_SMP 1 |
|
|
709 | #endif |
|
|
710 | |
|
|
711 | #if ECB_NO_SMP |
|
|
712 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
713 | #endif |
|
|
714 | |
|
|
715 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
716 | #if __xlC__ && ECB_CPP |
|
|
717 | #include <builtins.h> |
|
|
718 | #endif |
|
|
719 | |
|
|
720 | #if 1400 <= _MSC_VER |
|
|
721 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
722 | #endif |
|
|
723 | |
|
|
724 | #ifndef ECB_MEMORY_FENCE |
|
|
725 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
726 | #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory") |
|
|
727 | #if __i386 || __i386__ |
|
|
728 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
729 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
730 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
731 | #elif ECB_GCC_AMD64 |
|
|
732 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
733 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
734 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") |
|
|
735 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
736 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
737 | #elif defined __ARM_ARCH_2__ \ |
|
|
738 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
739 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
740 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
741 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
742 | || defined __ARM_ARCH_5TEJ__ |
|
|
743 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
744 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
745 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
746 | || defined __ARM_ARCH_6T2__ |
|
|
747 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
748 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
749 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
750 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
751 | #elif __aarch64__ |
|
|
752 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
753 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
754 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
755 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
756 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
757 | #elif defined __s390__ || defined __s390x__ |
|
|
758 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
759 | #elif defined __mips__ |
|
|
760 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
761 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
762 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
763 | #elif defined __alpha__ |
|
|
764 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
765 | #elif defined __hppa__ |
|
|
766 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
767 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
768 | #elif defined __ia64__ |
|
|
769 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
770 | #elif defined __m68k__ |
|
|
771 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
772 | #elif defined __m88k__ |
|
|
773 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
774 | #elif defined __sh__ |
|
|
775 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
776 | #endif |
|
|
777 | #endif |
|
|
778 | #endif |
|
|
779 | |
|
|
780 | #ifndef ECB_MEMORY_FENCE |
|
|
781 | #if ECB_GCC_VERSION(4,7) |
|
|
782 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
783 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
784 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
785 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
786 | #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
787 | |
|
|
788 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
789 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
790 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
791 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
792 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
793 | #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED) |
|
|
794 | |
|
|
795 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
796 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
797 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
798 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
799 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
800 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
801 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
802 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
803 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
804 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
805 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
806 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
807 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
808 | #elif defined _WIN32 |
|
|
809 | #include <WinNT.h> |
|
|
810 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
811 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
812 | #include <mbarrier.h> |
|
|
813 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
814 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier () |
|
|
815 | #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier () |
|
|
816 | #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier () |
|
|
817 | #elif __xlC__ |
|
|
818 | #define ECB_MEMORY_FENCE __sync () |
|
|
819 | #endif |
|
|
820 | #endif |
|
|
821 | |
|
|
822 | #ifndef ECB_MEMORY_FENCE |
|
|
823 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
824 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
825 | /* not just C11 atomics and atomic accesses */ |
|
|
826 | #include <stdatomic.h> |
|
|
827 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
828 | #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire) |
|
|
829 | #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release) |
|
|
830 | #endif |
|
|
831 | #endif |
|
|
832 | |
|
|
833 | #ifndef ECB_MEMORY_FENCE |
|
|
834 | #if !ECB_AVOID_PTHREADS |
|
|
835 | /* |
|
|
836 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
837 | * or failure to find pthread.h, then you should implement |
|
|
838 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
839 | * OR provide pthread.h and link against the posix thread library |
|
|
840 | * of your system. |
|
|
841 | */ |
|
|
842 | #include <pthread.h> |
|
|
843 | #define ECB_NEEDS_PTHREADS 1 |
|
|
844 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
845 | |
|
|
846 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
847 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
848 | #endif |
|
|
849 | #endif |
|
|
850 | |
|
|
851 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
852 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
853 | #endif |
|
|
854 | |
|
|
855 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
856 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | #if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE |
|
|
860 | #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */ |
|
|
861 | #endif |
|
|
862 | |
|
|
863 | /*****************************************************************************/ |
|
|
864 | |
|
|
865 | #if ECB_CPP |
|
|
866 | #define ecb_inline static inline |
|
|
867 | #elif ECB_GCC_VERSION(2,5) |
|
|
868 | #define ecb_inline static __inline__ |
|
|
869 | #elif ECB_C99 |
|
|
870 | #define ecb_inline static inline |
|
|
871 | #else |
|
|
872 | #define ecb_inline static |
|
|
873 | #endif |
|
|
874 | |
|
|
875 | #if ECB_GCC_VERSION(3,3) |
|
|
876 | #define ecb_restrict __restrict__ |
|
|
877 | #elif ECB_C99 |
|
|
878 | #define ecb_restrict restrict |
|
|
879 | #else |
|
|
880 | #define ecb_restrict |
|
|
881 | #endif |
|
|
882 | |
|
|
883 | typedef int ecb_bool; |
|
|
884 | |
|
|
885 | #define ECB_CONCAT_(a, b) a ## b |
|
|
886 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
887 | #define ECB_STRINGIFY_(a) # a |
|
|
888 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
889 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
890 | |
|
|
891 | #define ecb_function_ ecb_inline |
|
|
892 | |
|
|
893 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
894 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
895 | #else |
|
|
896 | #define ecb_attribute(attrlist) |
|
|
897 | #endif |
|
|
898 | |
|
|
899 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
900 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
901 | #else |
|
|
902 | /* possible C11 impl for integral types |
|
|
903 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
904 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
905 | |
|
|
906 | #define ecb_is_constant(expr) 0 |
|
|
907 | #endif |
|
|
908 | |
|
|
909 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
910 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
911 | #else |
|
|
912 | #define ecb_expect(expr,value) (expr) |
|
|
913 | #endif |
|
|
914 | |
|
|
915 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
916 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
917 | #else |
|
|
918 | #define ecb_prefetch(addr,rw,locality) |
|
|
919 | #endif |
|
|
920 | |
|
|
921 | /* no emulation for ecb_decltype */ |
|
|
922 | #if ECB_CPP11 |
|
|
923 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
924 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
925 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
926 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
927 | #define ecb_decltype(x) __typeof__ (x) |
|
|
928 | #endif |
|
|
929 | |
|
|
930 | #if _MSC_VER >= 1300 |
|
|
931 | #define ecb_deprecated __declspec (deprecated) |
|
|
932 | #else |
|
|
933 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
934 | #endif |
|
|
935 | |
|
|
936 | #if _MSC_VER >= 1500 |
|
|
937 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
938 | #elif ECB_GCC_VERSION(4,5) |
|
|
939 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
940 | #else |
|
|
941 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
942 | #endif |
|
|
943 | |
|
|
944 | #if _MSC_VER >= 1400 |
|
|
945 | #define ecb_noinline __declspec (noinline) |
|
|
946 | #else |
|
|
947 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
951 | #define ecb_const ecb_attribute ((__const__)) |
|
|
952 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
953 | |
|
|
954 | #if ECB_C11 || __IBMC_NORETURN |
|
|
955 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
956 | #define ecb_noreturn _Noreturn |
|
|
957 | #elif ECB_CPP11 |
|
|
958 | #define ecb_noreturn [[noreturn]] |
|
|
959 | #elif _MSC_VER >= 1200 |
|
|
960 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
961 | #define ecb_noreturn __declspec (noreturn) |
|
|
962 | #else |
|
|
963 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
964 | #endif |
|
|
965 | |
|
|
966 | #if ECB_GCC_VERSION(4,3) |
|
|
967 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
968 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
969 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
970 | #else |
|
|
971 | #define ecb_artificial |
|
|
972 | #define ecb_hot |
|
|
973 | #define ecb_cold |
|
|
974 | #endif |
|
|
975 | |
|
|
976 | /* put around conditional expressions if you are very sure that the */ |
|
|
977 | /* expression is mostly true or mostly false. note that these return */ |
|
|
978 | /* booleans, not the expression. */ |
|
|
979 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
|
|
980 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
981 | /* for compatibility to the rest of the world */ |
|
|
982 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
983 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
984 | |
|
|
985 | /* count trailing zero bits and count # of one bits */ |
|
|
986 | #if ECB_GCC_VERSION(3,4) \ |
|
|
987 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
988 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
989 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
990 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
991 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
992 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
993 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
994 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
995 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
996 | /* no popcountll */ |
|
|
997 | #else |
|
|
998 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
999 | ecb_function_ ecb_const int |
|
|
1000 | ecb_ctz32 (uint32_t x) |
|
|
1001 | { |
|
|
1002 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1003 | unsigned long r; |
|
|
1004 | _BitScanForward (&r, x); |
|
|
1005 | return (int)r; |
|
|
1006 | #else |
|
|
1007 | int r = 0; |
|
|
1008 | |
|
|
1009 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
1010 | |
|
|
1011 | #if ECB_branchless_on_i386 |
|
|
1012 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
1013 | r += !!(x & 0xcccccccc) << 1; |
|
|
1014 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
1015 | r += !!(x & 0xff00ff00) << 3; |
|
|
1016 | r += !!(x & 0xffff0000) << 4; |
|
|
1017 | #else |
|
|
1018 | if (x & 0xaaaaaaaa) r += 1; |
|
|
1019 | if (x & 0xcccccccc) r += 2; |
|
|
1020 | if (x & 0xf0f0f0f0) r += 4; |
|
|
1021 | if (x & 0xff00ff00) r += 8; |
|
|
1022 | if (x & 0xffff0000) r += 16; |
|
|
1023 | #endif |
|
|
1024 | |
|
|
1025 | return r; |
|
|
1026 | #endif |
|
|
1027 | } |
|
|
1028 | |
|
|
1029 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
1030 | ecb_function_ ecb_const int |
|
|
1031 | ecb_ctz64 (uint64_t x) |
|
|
1032 | { |
|
|
1033 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1034 | unsigned long r; |
|
|
1035 | _BitScanForward64 (&r, x); |
|
|
1036 | return (int)r; |
|
|
1037 | #else |
|
|
1038 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
1039 | return ecb_ctz32 (x >> shift) + shift; |
|
|
1040 | #endif |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
1044 | ecb_function_ ecb_const int |
|
|
1045 | ecb_popcount32 (uint32_t x) |
|
|
1046 | { |
|
|
1047 | x -= (x >> 1) & 0x55555555; |
|
|
1048 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
1049 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
1050 | x *= 0x01010101; |
|
|
1051 | |
|
|
1052 | return x >> 24; |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
1056 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
1057 | { |
|
|
1058 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
1059 | unsigned long r; |
|
|
1060 | _BitScanReverse (&r, x); |
|
|
1061 | return (int)r; |
|
|
1062 | #else |
|
|
1063 | int r = 0; |
|
|
1064 | |
|
|
1065 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
1066 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
1067 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
1068 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
1069 | if (x >> 1) { r += 1; } |
|
|
1070 | |
|
|
1071 | return r; |
|
|
1072 | #endif |
|
|
1073 | } |
|
|
1074 | |
|
|
1075 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1076 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1077 | { |
|
|
1078 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1079 | unsigned long r; |
|
|
1080 | _BitScanReverse64 (&r, x); |
|
|
1081 | return (int)r; |
|
|
1082 | #else |
|
|
1083 | int r = 0; |
|
|
1084 | |
|
|
1085 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1086 | |
|
|
1087 | return r + ecb_ld32 (x); |
|
|
1088 | #endif |
|
|
1089 | } |
|
|
1090 | #endif |
|
|
1091 | |
|
|
1092 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1093 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1094 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1095 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1096 | |
|
|
1097 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1098 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1099 | { |
|
|
1100 | return ( (x * 0x0802U & 0x22110U) |
|
|
1101 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1105 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1106 | { |
|
|
1107 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1108 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1109 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1110 | x = ( x >> 8 ) | ( x << 8); |
|
|
1111 | |
|
|
1112 | return x; |
|
|
1113 | } |
|
|
1114 | |
|
|
1115 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1116 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1117 | { |
|
|
1118 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1119 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1120 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1121 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1122 | x = ( x >> 16 ) | ( x << 16); |
|
|
1123 | |
|
|
1124 | return x; |
|
|
1125 | } |
|
|
1126 | |
|
|
1127 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1128 | /* so for this version we are lazy */ |
|
|
1129 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1130 | ecb_function_ ecb_const int |
|
|
1131 | ecb_popcount64 (uint64_t x) |
|
|
1132 | { |
|
|
1133 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1134 | } |
|
|
1135 | |
|
|
1136 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1137 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1138 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1139 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1140 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1141 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1142 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1143 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1144 | |
|
|
1145 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1146 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1147 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1148 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1149 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1150 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1151 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1152 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1153 | |
|
|
1154 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1155 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1156 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1157 | #else |
|
|
1158 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1159 | #endif |
|
|
1160 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1161 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1162 | #elif _MSC_VER |
|
|
1163 | #include <stdlib.h> |
|
|
1164 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1165 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1166 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1167 | #else |
|
|
1168 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1169 | ecb_function_ ecb_const uint16_t |
|
|
1170 | ecb_bswap16 (uint16_t x) |
|
|
1171 | { |
|
|
1172 | return ecb_rotl16 (x, 8); |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1176 | ecb_function_ ecb_const uint32_t |
|
|
1177 | ecb_bswap32 (uint32_t x) |
|
|
1178 | { |
|
|
1179 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1180 | } |
|
|
1181 | |
|
|
1182 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1183 | ecb_function_ ecb_const uint64_t |
|
|
1184 | ecb_bswap64 (uint64_t x) |
|
|
1185 | { |
|
|
1186 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1187 | } |
|
|
1188 | #endif |
|
|
1189 | |
|
|
1190 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1191 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1192 | #else |
|
|
1193 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1194 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1195 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1196 | #endif |
|
|
1197 | |
|
|
1198 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1199 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1200 | |
|
|
1201 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1202 | ecb_inline ecb_const uint32_t |
|
|
1203 | ecb_byteorder_helper (void) |
|
|
1204 | { |
|
|
1205 | /* the union code still generates code under pressure in gcc, */ |
|
|
1206 | /* but less than using pointers, and always seems to */ |
|
|
1207 | /* successfully return a constant. */ |
|
|
1208 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1209 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1210 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1211 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1212 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1213 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1214 | return 0x44332211; |
|
|
1215 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1216 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1217 | #define ECB_BIG_ENDIAN 1 |
|
|
1218 | return 0x11223344; |
|
|
1219 | #else |
|
|
1220 | union |
|
|
1221 | { |
|
|
1222 | uint8_t c[4]; |
|
|
1223 | uint32_t u; |
|
|
1224 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1225 | return u.u; |
|
|
1226 | #endif |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1230 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1231 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1232 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1233 | |
|
|
1234 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1235 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1236 | #else |
|
|
1237 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1238 | #endif |
|
|
1239 | |
|
|
1240 | #if ECB_CPP |
|
|
1241 | template<typename T> |
|
|
1242 | static inline T ecb_div_rd (T val, T div) |
|
|
1243 | { |
|
|
1244 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1245 | } |
|
|
1246 | template<typename T> |
|
|
1247 | static inline T ecb_div_ru (T val, T div) |
|
|
1248 | { |
|
|
1249 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1250 | } |
|
|
1251 | #else |
|
|
1252 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1253 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1254 | #endif |
|
|
1255 | |
|
|
1256 | #if ecb_cplusplus_does_not_suck |
|
|
1257 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1258 | template<typename T, int N> |
|
|
1259 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1260 | { |
|
|
1261 | return N; |
|
|
1262 | } |
|
|
1263 | #else |
|
|
1264 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1265 | #endif |
|
|
1266 | |
|
|
1267 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1268 | ecb_function_ ecb_const uint32_t |
|
|
1269 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1270 | { |
|
|
1271 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1272 | int e = (x >> 10) & 0x001f; |
|
|
1273 | unsigned int m = x & 0x03ff; |
|
|
1274 | |
|
|
1275 | if (ecb_expect_false (e == 31)) |
|
|
1276 | /* infinity or NaN */ |
|
|
1277 | e = 255 - (127 - 15); |
|
|
1278 | else if (ecb_expect_false (!e)) |
|
|
1279 | { |
|
|
1280 | if (ecb_expect_true (!m)) |
|
|
1281 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1282 | e = 0 - (127 - 15); |
|
|
1283 | else |
|
|
1284 | { |
|
|
1285 | /* subnormal, renormalise */ |
|
|
1286 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1287 | |
|
|
1288 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1289 | e -= s - 1; |
|
|
1290 | } |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1294 | e += 127 - 15; |
|
|
1295 | |
|
|
1296 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1297 | } |
|
|
1298 | |
|
|
1299 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1300 | ecb_function_ ecb_const uint16_t |
|
|
1301 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1302 | { |
|
|
1303 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1304 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1305 | unsigned int m = x & 0x007fffff; |
|
|
1306 | |
|
|
1307 | x &= 0x7fffffff; |
|
|
1308 | |
|
|
1309 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1310 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1311 | { |
|
|
1312 | /* mantissa round-to-even */ |
|
|
1313 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1314 | |
|
|
1315 | /* handle overflow */ |
|
|
1316 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1317 | { |
|
|
1318 | m >>= 1; |
|
|
1319 | e += 1; |
|
|
1320 | } |
|
|
1321 | |
|
|
1322 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1323 | } |
|
|
1324 | |
|
|
1325 | /* handle large numbers and infinity */ |
|
|
1326 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1327 | return s | 0x7c00; |
|
|
1328 | |
|
|
1329 | /* handle zero, subnormals and small numbers */ |
|
|
1330 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1331 | { |
|
|
1332 | /* zero */ |
|
|
1333 | if (ecb_expect_true (!x)) |
|
|
1334 | return s; |
|
|
1335 | |
|
|
1336 | /* handle subnormals */ |
|
|
1337 | |
|
|
1338 | /* too small, will be zero */ |
|
|
1339 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1340 | return s; |
|
|
1341 | |
|
|
1342 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1343 | |
|
|
1344 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1345 | { |
|
|
1346 | unsigned int bits = 14 - e; |
|
|
1347 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1348 | unsigned int even = (m >> bits) & 1; |
|
|
1349 | |
|
|
1350 | /* if this overflows, we will end up with a normalised number */ |
|
|
1351 | m = (m + half + even) >> bits; |
|
|
1352 | } |
|
|
1353 | |
|
|
1354 | return s | m; |
|
|
1355 | } |
|
|
1356 | |
|
|
1357 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1358 | m >>= 13; |
|
|
1359 | |
|
|
1360 | return s | 0x7c00 | m | !m; |
|
|
1361 | } |
|
|
1362 | |
|
|
1363 | /*******************************************************************************/ |
|
|
1364 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1365 | |
|
|
1366 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1367 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1368 | #if 0 \ |
|
|
1369 | || __i386 || __i386__ \ |
|
|
1370 | || ECB_GCC_AMD64 \ |
|
|
1371 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1372 | || defined __s390__ || defined __s390x__ \ |
|
|
1373 | || defined __mips__ \ |
|
|
1374 | || defined __alpha__ \ |
|
|
1375 | || defined __hppa__ \ |
|
|
1376 | || defined __ia64__ \ |
|
|
1377 | || defined __m68k__ \ |
|
|
1378 | || defined __m88k__ \ |
|
|
1379 | || defined __sh__ \ |
|
|
1380 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1381 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1382 | || defined __aarch64__ |
|
|
1383 | #define ECB_STDFP 1 |
|
|
1384 | #include <string.h> /* for memcpy */ |
|
|
1385 | #else |
|
|
1386 | #define ECB_STDFP 0 |
|
|
1387 | #endif |
|
|
1388 | |
|
|
1389 | #ifndef ECB_NO_LIBM |
|
|
1390 | |
|
|
1391 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1392 | |
|
|
1393 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1394 | #ifdef INFINITY |
|
|
1395 | #define ECB_INFINITY INFINITY |
|
|
1396 | #else |
|
|
1397 | #define ECB_INFINITY HUGE_VAL |
|
|
1398 | #endif |
|
|
1399 | |
|
|
1400 | #ifdef NAN |
|
|
1401 | #define ECB_NAN NAN |
|
|
1402 | #else |
|
|
1403 | #define ECB_NAN ECB_INFINITY |
|
|
1404 | #endif |
|
|
1405 | |
|
|
1406 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1407 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1408 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1409 | #else |
|
|
1410 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1411 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1412 | #endif |
|
|
1413 | |
|
|
1414 | /* convert a float to ieee single/binary32 */ |
|
|
1415 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1416 | ecb_function_ ecb_const uint32_t |
|
|
1417 | ecb_float_to_binary32 (float x) |
|
|
1418 | { |
|
|
1419 | uint32_t r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 4); |
|
|
1423 | #else |
|
|
1424 | /* slow emulation, works for anything but -0 */ |
|
|
1425 | uint32_t m; |
|
|
1426 | int e; |
|
|
1427 | |
|
|
1428 | if (x == 0e0f ) return 0x00000000U; |
|
|
1429 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1430 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1431 | if (x != x ) return 0x7fbfffffU; |
|
|
1432 | |
|
|
1433 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1434 | |
|
|
1435 | r = m & 0x80000000U; |
|
|
1436 | |
|
|
1437 | if (r) |
|
|
1438 | m = -m; |
|
|
1439 | |
|
|
1440 | if (e <= -126) |
|
|
1441 | { |
|
|
1442 | m &= 0xffffffU; |
|
|
1443 | m >>= (-125 - e); |
|
|
1444 | e = -126; |
|
|
1445 | } |
|
|
1446 | |
|
|
1447 | r |= (e + 126) << 23; |
|
|
1448 | r |= m & 0x7fffffU; |
|
|
1449 | #endif |
|
|
1450 | |
|
|
1451 | return r; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | /* converts an ieee single/binary32 to a float */ |
|
|
1455 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1456 | ecb_function_ ecb_const float |
|
|
1457 | ecb_binary32_to_float (uint32_t x) |
|
|
1458 | { |
|
|
1459 | float r; |
|
|
1460 | |
|
|
1461 | #if ECB_STDFP |
|
|
1462 | memcpy (&r, &x, 4); |
|
|
1463 | #else |
|
|
1464 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1465 | int neg = x >> 31; |
|
|
1466 | int e = (x >> 23) & 0xffU; |
|
|
1467 | |
|
|
1468 | x &= 0x7fffffU; |
|
|
1469 | |
|
|
1470 | if (e) |
|
|
1471 | x |= 0x800000U; |
|
|
1472 | else |
|
|
1473 | e = 1; |
|
|
1474 | |
|
|
1475 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1476 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1477 | |
|
|
1478 | r = neg ? -r : r; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* convert a double to ieee double/binary64 */ |
|
|
1485 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1486 | ecb_function_ ecb_const uint64_t |
|
|
1487 | ecb_double_to_binary64 (double x) |
|
|
1488 | { |
|
|
1489 | uint64_t r; |
|
|
1490 | |
|
|
1491 | #if ECB_STDFP |
|
|
1492 | memcpy (&r, &x, 8); |
|
|
1493 | #else |
|
|
1494 | /* slow emulation, works for anything but -0 */ |
|
|
1495 | uint64_t m; |
|
|
1496 | int e; |
|
|
1497 | |
|
|
1498 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1499 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1500 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1501 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1502 | |
|
|
1503 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1504 | |
|
|
1505 | r = m & 0x8000000000000000;; |
|
|
1506 | |
|
|
1507 | if (r) |
|
|
1508 | m = -m; |
|
|
1509 | |
|
|
1510 | if (e <= -1022) |
|
|
1511 | { |
|
|
1512 | m &= 0x1fffffffffffffU; |
|
|
1513 | m >>= (-1021 - e); |
|
|
1514 | e = -1022; |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1518 | r |= m & 0xfffffffffffffU; |
|
|
1519 | #endif |
|
|
1520 | |
|
|
1521 | return r; |
|
|
1522 | } |
|
|
1523 | |
|
|
1524 | /* converts an ieee double/binary64 to a double */ |
|
|
1525 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1526 | ecb_function_ ecb_const double |
|
|
1527 | ecb_binary64_to_double (uint64_t x) |
|
|
1528 | { |
|
|
1529 | double r; |
|
|
1530 | |
|
|
1531 | #if ECB_STDFP |
|
|
1532 | memcpy (&r, &x, 8); |
|
|
1533 | #else |
|
|
1534 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1535 | int neg = x >> 63; |
|
|
1536 | int e = (x >> 52) & 0x7ffU; |
|
|
1537 | |
|
|
1538 | x &= 0xfffffffffffffU; |
|
|
1539 | |
|
|
1540 | if (e) |
|
|
1541 | x |= 0x10000000000000U; |
|
|
1542 | else |
|
|
1543 | e = 1; |
|
|
1544 | |
|
|
1545 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1546 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1547 | |
|
|
1548 | r = neg ? -r : r; |
|
|
1549 | #endif |
|
|
1550 | |
|
|
1551 | return r; |
|
|
1552 | } |
|
|
1553 | |
|
|
1554 | /* convert a float to ieee half/binary16 */ |
|
|
1555 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1556 | ecb_function_ ecb_const uint16_t |
|
|
1557 | ecb_float_to_binary16 (float x) |
|
|
1558 | { |
|
|
1559 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | /* convert an ieee half/binary16 to float */ |
|
|
1563 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1564 | ecb_function_ ecb_const float |
|
|
1565 | ecb_binary16_to_float (uint16_t x) |
|
|
1566 | { |
|
|
1567 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1568 | } |
|
|
1569 | |
|
|
1570 | #endif |
|
|
1571 | |
|
|
1572 | #endif |
|
|
1573 | |
|
|
1574 | /* ECB.H END */ |
|
|
1575 | |
|
|
1576 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1577 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1578 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1579 | * from multiple threads, then you can define ECB_NO_THREADS when compiling |
|
|
1580 | * libev, in which cases the memory fences become nops. |
|
|
1581 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1582 | * which will then provide the memory fences. |
|
|
1583 | */ |
|
|
1584 | # error "memory fences not defined for your architecture, please report" |
|
|
1585 | #endif |
|
|
1586 | |
|
|
1587 | #ifndef ECB_MEMORY_FENCE |
|
|
1588 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1589 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1590 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1591 | #endif |
|
|
1592 | |
|
|
1593 | #define inline_size ecb_inline |
|
|
1594 | |
|
|
1595 | #if EV_FEATURE_CODE |
393 | # define inline_speed static inline |
1596 | # define inline_speed ecb_inline |
|
|
1597 | #else |
|
|
1598 | # define inline_speed ecb_noinline static |
394 | #endif |
1599 | #endif |
395 | |
1600 | |
|
|
1601 | /*****************************************************************************/ |
|
|
1602 | /* raw syscall wrappers */ |
|
|
1603 | |
|
|
1604 | #if EV_NEED_SYSCALL |
|
|
1605 | |
|
|
1606 | #include <sys/syscall.h> |
|
|
1607 | |
|
|
1608 | /* |
|
|
1609 | * define some syscall wrappers for common architectures |
|
|
1610 | * this is mostly for nice looks during debugging, not performance. |
|
|
1611 | * our syscalls return < 0, not == -1, on error. which is good |
|
|
1612 | * enough for linux aio. |
|
|
1613 | * TODO: arm is also common nowadays, maybe even mips and x86 |
|
|
1614 | * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove... |
|
|
1615 | */ |
|
|
1616 | #if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__ |
|
|
1617 | /* the costly errno access probably kills this for size optimisation */ |
|
|
1618 | |
|
|
1619 | #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \ |
|
|
1620 | ({ \ |
|
|
1621 | long res; \ |
|
|
1622 | register unsigned long r6 __asm__ ("r9" ); \ |
|
|
1623 | register unsigned long r5 __asm__ ("r8" ); \ |
|
|
1624 | register unsigned long r4 __asm__ ("r10"); \ |
|
|
1625 | register unsigned long r3 __asm__ ("rdx"); \ |
|
|
1626 | register unsigned long r2 __asm__ ("rsi"); \ |
|
|
1627 | register unsigned long r1 __asm__ ("rdi"); \ |
|
|
1628 | if (narg >= 6) r6 = (unsigned long)(arg6); \ |
|
|
1629 | if (narg >= 5) r5 = (unsigned long)(arg5); \ |
|
|
1630 | if (narg >= 4) r4 = (unsigned long)(arg4); \ |
|
|
1631 | if (narg >= 3) r3 = (unsigned long)(arg3); \ |
|
|
1632 | if (narg >= 2) r2 = (unsigned long)(arg2); \ |
|
|
1633 | if (narg >= 1) r1 = (unsigned long)(arg1); \ |
|
|
1634 | __asm__ __volatile__ ( \ |
|
|
1635 | "syscall\n\t" \ |
|
|
1636 | : "=a" (res) \ |
|
|
1637 | : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \ |
|
|
1638 | : "cc", "r11", "cx", "memory"); \ |
|
|
1639 | errno = -res; \ |
|
|
1640 | res; \ |
|
|
1641 | }) |
|
|
1642 | |
|
|
1643 | #endif |
|
|
1644 | |
|
|
1645 | #ifdef ev_syscall |
|
|
1646 | #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0) |
|
|
1647 | #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0) |
|
|
1648 | #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0) |
|
|
1649 | #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0) |
|
|
1650 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0) |
|
|
1651 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0) |
|
|
1652 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1653 | #else |
|
|
1654 | #define ev_syscall0(nr) syscall (nr) |
|
|
1655 | #define ev_syscall1(nr,arg1) syscall (nr, arg1) |
|
|
1656 | #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2) |
|
|
1657 | #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3) |
|
|
1658 | #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4) |
|
|
1659 | #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5) |
|
|
1660 | #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6) |
|
|
1661 | #endif |
|
|
1662 | |
|
|
1663 | #endif |
|
|
1664 | |
|
|
1665 | /*****************************************************************************/ |
|
|
1666 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1667 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
1668 | |
|
|
1669 | #if EV_MINPRI == EV_MAXPRI |
|
|
1670 | # define ABSPRI(w) (((W)w), 0) |
|
|
1671 | #else |
397 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1672 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
1673 | #endif |
398 | |
1674 | |
399 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1675 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
400 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
401 | |
1676 | |
402 | typedef ev_watcher *W; |
1677 | typedef ev_watcher *W; |
403 | typedef ev_watcher_list *WL; |
1678 | typedef ev_watcher_list *WL; |
404 | typedef ev_watcher_time *WT; |
1679 | typedef ev_watcher_time *WT; |
405 | |
1680 | |
406 | #define ev_active(w) ((W)(w))->active |
1681 | #define ev_active(w) ((W)(w))->active |
407 | #define ev_at(w) ((WT)(w))->at |
1682 | #define ev_at(w) ((WT)(w))->at |
408 | |
1683 | |
409 | #if EV_USE_REALTIME |
1684 | #if EV_USE_REALTIME |
410 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1685 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
411 | /* giving it a reasonably high chance of working on typical architetcures */ |
1686 | /* giving it a reasonably high chance of working on typical architectures */ |
412 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
1687 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
413 | #endif |
1688 | #endif |
414 | |
1689 | |
415 | #if EV_USE_MONOTONIC |
1690 | #if EV_USE_MONOTONIC |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1691 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
417 | #endif |
1692 | #endif |
418 | |
1693 | |
|
|
1694 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1695 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1696 | #endif |
|
|
1697 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1698 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1699 | #endif |
|
|
1700 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1701 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
1702 | #endif |
|
|
1703 | |
419 | #ifdef _WIN32 |
1704 | #ifdef _WIN32 |
420 | # include "ev_win32.c" |
1705 | # include "ev_win32.c" |
421 | #endif |
1706 | #endif |
422 | |
1707 | |
423 | /*****************************************************************************/ |
1708 | /*****************************************************************************/ |
424 | |
1709 | |
|
|
1710 | #if EV_USE_LINUXAIO |
|
|
1711 | # include <linux/aio_abi.h> /* probably only needed for aio_context_t */ |
|
|
1712 | #endif |
|
|
1713 | |
|
|
1714 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1715 | |
|
|
1716 | #if EV_USE_FLOOR |
|
|
1717 | # include <math.h> |
|
|
1718 | # define ev_floor(v) floor (v) |
|
|
1719 | #else |
|
|
1720 | |
|
|
1721 | #include <float.h> |
|
|
1722 | |
|
|
1723 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1724 | ecb_noinline |
|
|
1725 | static ev_tstamp |
|
|
1726 | ev_floor (ev_tstamp v) |
|
|
1727 | { |
|
|
1728 | /* the choice of shift factor is not terribly important */ |
|
|
1729 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1730 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1731 | #else |
|
|
1732 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1733 | #endif |
|
|
1734 | |
|
|
1735 | /* special treatment for negative arguments */ |
|
|
1736 | if (ecb_expect_false (v < 0.)) |
|
|
1737 | { |
|
|
1738 | ev_tstamp f = -ev_floor (-v); |
|
|
1739 | |
|
|
1740 | return f - (f == v ? 0 : 1); |
|
|
1741 | } |
|
|
1742 | |
|
|
1743 | /* argument too large for an unsigned long? then reduce it */ |
|
|
1744 | if (ecb_expect_false (v >= shift)) |
|
|
1745 | { |
|
|
1746 | ev_tstamp f; |
|
|
1747 | |
|
|
1748 | if (v == v - 1.) |
|
|
1749 | return v; /* very large numbers are assumed to be integer */ |
|
|
1750 | |
|
|
1751 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1752 | return f + ev_floor (v - f); |
|
|
1753 | } |
|
|
1754 | |
|
|
1755 | /* fits into an unsigned long */ |
|
|
1756 | return (unsigned long)v; |
|
|
1757 | } |
|
|
1758 | |
|
|
1759 | #endif |
|
|
1760 | |
|
|
1761 | /*****************************************************************************/ |
|
|
1762 | |
|
|
1763 | #ifdef __linux |
|
|
1764 | # include <sys/utsname.h> |
|
|
1765 | #endif |
|
|
1766 | |
|
|
1767 | ecb_noinline ecb_cold |
|
|
1768 | static unsigned int |
|
|
1769 | ev_linux_version (void) |
|
|
1770 | { |
|
|
1771 | #ifdef __linux |
|
|
1772 | unsigned int v = 0; |
|
|
1773 | struct utsname buf; |
|
|
1774 | int i; |
|
|
1775 | char *p = buf.release; |
|
|
1776 | |
|
|
1777 | if (uname (&buf)) |
|
|
1778 | return 0; |
|
|
1779 | |
|
|
1780 | for (i = 3+1; --i; ) |
|
|
1781 | { |
|
|
1782 | unsigned int c = 0; |
|
|
1783 | |
|
|
1784 | for (;;) |
|
|
1785 | { |
|
|
1786 | if (*p >= '0' && *p <= '9') |
|
|
1787 | c = c * 10 + *p++ - '0'; |
|
|
1788 | else |
|
|
1789 | { |
|
|
1790 | p += *p == '.'; |
|
|
1791 | break; |
|
|
1792 | } |
|
|
1793 | } |
|
|
1794 | |
|
|
1795 | v = (v << 8) | c; |
|
|
1796 | } |
|
|
1797 | |
|
|
1798 | return v; |
|
|
1799 | #else |
|
|
1800 | return 0; |
|
|
1801 | #endif |
|
|
1802 | } |
|
|
1803 | |
|
|
1804 | /*****************************************************************************/ |
|
|
1805 | |
|
|
1806 | #if EV_AVOID_STDIO |
|
|
1807 | ecb_noinline ecb_cold |
|
|
1808 | static void |
|
|
1809 | ev_printerr (const char *msg) |
|
|
1810 | { |
|
|
1811 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1812 | } |
|
|
1813 | #endif |
|
|
1814 | |
425 | static void (*syserr_cb)(const char *msg); |
1815 | static void (*syserr_cb)(const char *msg) EV_NOEXCEPT; |
426 | |
1816 | |
|
|
1817 | ecb_cold |
427 | void |
1818 | void |
428 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1819 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT |
429 | { |
1820 | { |
430 | syserr_cb = cb; |
1821 | syserr_cb = cb; |
431 | } |
1822 | } |
432 | |
1823 | |
433 | static void noinline |
1824 | ecb_noinline ecb_cold |
|
|
1825 | static void |
434 | ev_syserr (const char *msg) |
1826 | ev_syserr (const char *msg) |
435 | { |
1827 | { |
436 | if (!msg) |
1828 | if (!msg) |
437 | msg = "(libev) system error"; |
1829 | msg = "(libev) system error"; |
438 | |
1830 | |
439 | if (syserr_cb) |
1831 | if (syserr_cb) |
440 | syserr_cb (msg); |
1832 | syserr_cb (msg); |
441 | else |
1833 | else |
442 | { |
1834 | { |
|
|
1835 | #if EV_AVOID_STDIO |
|
|
1836 | ev_printerr (msg); |
|
|
1837 | ev_printerr (": "); |
|
|
1838 | ev_printerr (strerror (errno)); |
|
|
1839 | ev_printerr ("\n"); |
|
|
1840 | #else |
443 | perror (msg); |
1841 | perror (msg); |
|
|
1842 | #endif |
444 | abort (); |
1843 | abort (); |
445 | } |
1844 | } |
446 | } |
1845 | } |
447 | |
1846 | |
448 | static void * |
1847 | static void * |
449 | ev_realloc_emul (void *ptr, long size) |
1848 | ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT |
450 | { |
1849 | { |
451 | /* some systems, notably openbsd and darwin, fail to properly |
1850 | /* some systems, notably openbsd and darwin, fail to properly |
452 | * implement realloc (x, 0) (as required by both ansi c-98 and |
1851 | * implement realloc (x, 0) (as required by both ansi c-89 and |
453 | * the single unix specification, so work around them here. |
1852 | * the single unix specification, so work around them here. |
|
|
1853 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1854 | * despite documenting it otherwise. |
454 | */ |
1855 | */ |
455 | |
1856 | |
456 | if (size) |
1857 | if (size) |
457 | return realloc (ptr, size); |
1858 | return realloc (ptr, size); |
458 | |
1859 | |
459 | free (ptr); |
1860 | free (ptr); |
460 | return 0; |
1861 | return 0; |
461 | } |
1862 | } |
462 | |
1863 | |
463 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1864 | static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul; |
464 | |
1865 | |
|
|
1866 | ecb_cold |
465 | void |
1867 | void |
466 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1868 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT |
467 | { |
1869 | { |
468 | alloc = cb; |
1870 | alloc = cb; |
469 | } |
1871 | } |
470 | |
1872 | |
471 | inline_speed void * |
1873 | inline_speed void * |
… | |
… | |
473 | { |
1875 | { |
474 | ptr = alloc (ptr, size); |
1876 | ptr = alloc (ptr, size); |
475 | |
1877 | |
476 | if (!ptr && size) |
1878 | if (!ptr && size) |
477 | { |
1879 | { |
|
|
1880 | #if EV_AVOID_STDIO |
|
|
1881 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1882 | #else |
478 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1883 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1884 | #endif |
479 | abort (); |
1885 | abort (); |
480 | } |
1886 | } |
481 | |
1887 | |
482 | return ptr; |
1888 | return ptr; |
483 | } |
1889 | } |
… | |
… | |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
1891 | #define ev_malloc(size) ev_realloc (0, (size)) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1892 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
487 | |
1893 | |
488 | /*****************************************************************************/ |
1894 | /*****************************************************************************/ |
489 | |
1895 | |
|
|
1896 | /* set in reify when reification needed */ |
|
|
1897 | #define EV_ANFD_REIFY 1 |
|
|
1898 | |
490 | /* file descriptor info structure */ |
1899 | /* file descriptor info structure */ |
491 | typedef struct |
1900 | typedef struct |
492 | { |
1901 | { |
493 | WL head; |
1902 | WL head; |
494 | unsigned char events; /* the events watched for */ |
1903 | unsigned char events; /* the events watched for */ |
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
1904 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1905 | unsigned char emask; /* some backends store the actual kernel mask in here */ |
497 | unsigned char unused; |
1906 | unsigned char eflags; /* flags field for use by backends */ |
498 | #if EV_USE_EPOLL |
1907 | #if EV_USE_EPOLL |
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1908 | unsigned int egen; /* generation counter to counter epoll bugs */ |
500 | #endif |
1909 | #endif |
501 | #if EV_SELECT_IS_WINSOCKET |
1910 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
502 | SOCKET handle; |
1911 | SOCKET handle; |
|
|
1912 | #endif |
|
|
1913 | #if EV_USE_IOCP |
|
|
1914 | OVERLAPPED or, ow; |
503 | #endif |
1915 | #endif |
504 | } ANFD; |
1916 | } ANFD; |
505 | |
1917 | |
506 | /* stores the pending event set for a given watcher */ |
1918 | /* stores the pending event set for a given watcher */ |
507 | typedef struct |
1919 | typedef struct |
… | |
… | |
549 | #undef VAR |
1961 | #undef VAR |
550 | }; |
1962 | }; |
551 | #include "ev_wrap.h" |
1963 | #include "ev_wrap.h" |
552 | |
1964 | |
553 | static struct ev_loop default_loop_struct; |
1965 | static struct ev_loop default_loop_struct; |
554 | struct ev_loop *ev_default_loop_ptr; |
1966 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
555 | |
1967 | |
556 | #else |
1968 | #else |
557 | |
1969 | |
558 | ev_tstamp ev_rt_now; |
1970 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
559 | #define VAR(name,decl) static decl; |
1971 | #define VAR(name,decl) static decl; |
560 | #include "ev_vars.h" |
1972 | #include "ev_vars.h" |
561 | #undef VAR |
1973 | #undef VAR |
562 | |
1974 | |
563 | static int ev_default_loop_ptr; |
1975 | static int ev_default_loop_ptr; |
564 | |
1976 | |
565 | #endif |
1977 | #endif |
566 | |
1978 | |
|
|
1979 | #if EV_FEATURE_API |
|
|
1980 | # define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A) |
|
|
1981 | # define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1982 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1983 | #else |
|
|
1984 | # define EV_RELEASE_CB (void)0 |
|
|
1985 | # define EV_ACQUIRE_CB (void)0 |
|
|
1986 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1987 | #endif |
|
|
1988 | |
|
|
1989 | #define EVBREAK_RECURSE 0x80 |
|
|
1990 | |
567 | /*****************************************************************************/ |
1991 | /*****************************************************************************/ |
568 | |
1992 | |
569 | #ifndef EV_HAVE_EV_TIME |
1993 | #ifndef EV_HAVE_EV_TIME |
570 | ev_tstamp |
1994 | ev_tstamp |
571 | ev_time (void) |
1995 | ev_time (void) EV_NOEXCEPT |
572 | { |
1996 | { |
573 | #if EV_USE_REALTIME |
1997 | #if EV_USE_REALTIME |
574 | if (expect_true (have_realtime)) |
1998 | if (ecb_expect_true (have_realtime)) |
575 | { |
1999 | { |
576 | struct timespec ts; |
2000 | struct timespec ts; |
577 | clock_gettime (CLOCK_REALTIME, &ts); |
2001 | clock_gettime (CLOCK_REALTIME, &ts); |
578 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2002 | return EV_TS_GET (ts); |
579 | } |
2003 | } |
580 | #endif |
2004 | #endif |
581 | |
2005 | |
582 | struct timeval tv; |
2006 | struct timeval tv; |
583 | gettimeofday (&tv, 0); |
2007 | gettimeofday (&tv, 0); |
584 | return tv.tv_sec + tv.tv_usec * 1e-6; |
2008 | return EV_TV_GET (tv); |
585 | } |
2009 | } |
586 | #endif |
2010 | #endif |
587 | |
2011 | |
588 | inline_size ev_tstamp |
2012 | inline_size ev_tstamp |
589 | get_clock (void) |
2013 | get_clock (void) |
590 | { |
2014 | { |
591 | #if EV_USE_MONOTONIC |
2015 | #if EV_USE_MONOTONIC |
592 | if (expect_true (have_monotonic)) |
2016 | if (ecb_expect_true (have_monotonic)) |
593 | { |
2017 | { |
594 | struct timespec ts; |
2018 | struct timespec ts; |
595 | clock_gettime (CLOCK_MONOTONIC, &ts); |
2019 | clock_gettime (CLOCK_MONOTONIC, &ts); |
596 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
2020 | return EV_TS_GET (ts); |
597 | } |
2021 | } |
598 | #endif |
2022 | #endif |
599 | |
2023 | |
600 | return ev_time (); |
2024 | return ev_time (); |
601 | } |
2025 | } |
602 | |
2026 | |
603 | #if EV_MULTIPLICITY |
2027 | #if EV_MULTIPLICITY |
604 | ev_tstamp |
2028 | ev_tstamp |
605 | ev_now (EV_P) |
2029 | ev_now (EV_P) EV_NOEXCEPT |
606 | { |
2030 | { |
607 | return ev_rt_now; |
2031 | return ev_rt_now; |
608 | } |
2032 | } |
609 | #endif |
2033 | #endif |
610 | |
2034 | |
611 | void |
2035 | void |
612 | ev_sleep (ev_tstamp delay) |
2036 | ev_sleep (ev_tstamp delay) EV_NOEXCEPT |
613 | { |
2037 | { |
614 | if (delay > 0.) |
2038 | if (delay > 0.) |
615 | { |
2039 | { |
616 | #if EV_USE_NANOSLEEP |
2040 | #if EV_USE_NANOSLEEP |
617 | struct timespec ts; |
2041 | struct timespec ts; |
618 | |
2042 | |
619 | ts.tv_sec = (time_t)delay; |
2043 | EV_TS_SET (ts, delay); |
620 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
621 | |
|
|
622 | nanosleep (&ts, 0); |
2044 | nanosleep (&ts, 0); |
623 | #elif defined(_WIN32) |
2045 | #elif defined _WIN32 |
|
|
2046 | /* maybe this should round up, as ms is very low resolution */ |
|
|
2047 | /* compared to select (µs) or nanosleep (ns) */ |
624 | Sleep ((unsigned long)(delay * 1e3)); |
2048 | Sleep ((unsigned long)(EV_TS_TO_MSEC (delay))); |
625 | #else |
2049 | #else |
626 | struct timeval tv; |
2050 | struct timeval tv; |
627 | |
2051 | |
628 | tv.tv_sec = (time_t)delay; |
|
|
629 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
630 | |
|
|
631 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
2052 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
632 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
2053 | /* something not guaranteed by newer posix versions, but guaranteed */ |
633 | /* by older ones */ |
2054 | /* by older ones */ |
|
|
2055 | EV_TV_SET (tv, delay); |
634 | select (0, 0, 0, 0, &tv); |
2056 | select (0, 0, 0, 0, &tv); |
635 | #endif |
2057 | #endif |
636 | } |
2058 | } |
637 | } |
2059 | } |
638 | |
2060 | |
639 | /*****************************************************************************/ |
2061 | /*****************************************************************************/ |
640 | |
2062 | |
641 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
2063 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
642 | |
2064 | |
643 | /* find a suitable new size for the given array, */ |
2065 | /* find a suitable new size for the given array, */ |
644 | /* hopefully by rounding to a ncie-to-malloc size */ |
2066 | /* hopefully by rounding to a nice-to-malloc size */ |
645 | inline_size int |
2067 | inline_size int |
646 | array_nextsize (int elem, int cur, int cnt) |
2068 | array_nextsize (int elem, int cur, int cnt) |
647 | { |
2069 | { |
648 | int ncur = cur + 1; |
2070 | int ncur = cur + 1; |
649 | |
2071 | |
650 | do |
2072 | do |
651 | ncur <<= 1; |
2073 | ncur <<= 1; |
652 | while (cnt > ncur); |
2074 | while (cnt > ncur); |
653 | |
2075 | |
654 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
2076 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
655 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
2077 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
656 | { |
2078 | { |
657 | ncur *= elem; |
2079 | ncur *= elem; |
658 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
2080 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
659 | ncur = ncur - sizeof (void *) * 4; |
2081 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
661 | } |
2083 | } |
662 | |
2084 | |
663 | return ncur; |
2085 | return ncur; |
664 | } |
2086 | } |
665 | |
2087 | |
666 | static noinline void * |
2088 | ecb_noinline ecb_cold |
|
|
2089 | static void * |
667 | array_realloc (int elem, void *base, int *cur, int cnt) |
2090 | array_realloc (int elem, void *base, int *cur, int cnt) |
668 | { |
2091 | { |
669 | *cur = array_nextsize (elem, *cur, cnt); |
2092 | *cur = array_nextsize (elem, *cur, cnt); |
670 | return ev_realloc (base, elem * *cur); |
2093 | return ev_realloc (base, elem * *cur); |
671 | } |
2094 | } |
672 | |
2095 | |
|
|
2096 | #define array_needsize_noinit(base,offset,count) |
|
|
2097 | |
673 | #define array_init_zero(base,count) \ |
2098 | #define array_needsize_zerofill(base,offset,count) \ |
674 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
2099 | memset ((void *)(base + offset), 0, sizeof (*(base)) * (count)) |
675 | |
2100 | |
676 | #define array_needsize(type,base,cur,cnt,init) \ |
2101 | #define array_needsize(type,base,cur,cnt,init) \ |
677 | if (expect_false ((cnt) > (cur))) \ |
2102 | if (ecb_expect_false ((cnt) > (cur))) \ |
678 | { \ |
2103 | { \ |
679 | int ocur_ = (cur); \ |
2104 | ecb_unused int ocur_ = (cur); \ |
680 | (base) = (type *)array_realloc \ |
2105 | (base) = (type *)array_realloc \ |
681 | (sizeof (type), (base), &(cur), (cnt)); \ |
2106 | (sizeof (type), (base), &(cur), (cnt)); \ |
682 | init ((base) + (ocur_), (cur) - ocur_); \ |
2107 | init ((base), ocur_, ((cur) - ocur_)); \ |
683 | } |
2108 | } |
684 | |
2109 | |
685 | #if 0 |
2110 | #if 0 |
686 | #define array_slim(type,stem) \ |
2111 | #define array_slim(type,stem) \ |
687 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
2112 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
… | |
… | |
696 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
2121 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
697 | |
2122 | |
698 | /*****************************************************************************/ |
2123 | /*****************************************************************************/ |
699 | |
2124 | |
700 | /* dummy callback for pending events */ |
2125 | /* dummy callback for pending events */ |
701 | static void noinline |
2126 | ecb_noinline |
|
|
2127 | static void |
702 | pendingcb (EV_P_ ev_prepare *w, int revents) |
2128 | pendingcb (EV_P_ ev_prepare *w, int revents) |
703 | { |
2129 | { |
704 | } |
2130 | } |
705 | |
2131 | |
706 | void noinline |
2132 | ecb_noinline |
|
|
2133 | void |
707 | ev_feed_event (EV_P_ void *w, int revents) |
2134 | ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT |
708 | { |
2135 | { |
709 | W w_ = (W)w; |
2136 | W w_ = (W)w; |
710 | int pri = ABSPRI (w_); |
2137 | int pri = ABSPRI (w_); |
711 | |
2138 | |
712 | if (expect_false (w_->pending)) |
2139 | if (ecb_expect_false (w_->pending)) |
713 | pendings [pri][w_->pending - 1].events |= revents; |
2140 | pendings [pri][w_->pending - 1].events |= revents; |
714 | else |
2141 | else |
715 | { |
2142 | { |
716 | w_->pending = ++pendingcnt [pri]; |
2143 | w_->pending = ++pendingcnt [pri]; |
717 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
2144 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); |
718 | pendings [pri][w_->pending - 1].w = w_; |
2145 | pendings [pri][w_->pending - 1].w = w_; |
719 | pendings [pri][w_->pending - 1].events = revents; |
2146 | pendings [pri][w_->pending - 1].events = revents; |
720 | } |
2147 | } |
|
|
2148 | |
|
|
2149 | pendingpri = NUMPRI - 1; |
721 | } |
2150 | } |
722 | |
2151 | |
723 | inline_speed void |
2152 | inline_speed void |
724 | feed_reverse (EV_P_ W w) |
2153 | feed_reverse (EV_P_ W w) |
725 | { |
2154 | { |
726 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
2155 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit); |
727 | rfeeds [rfeedcnt++] = w; |
2156 | rfeeds [rfeedcnt++] = w; |
728 | } |
2157 | } |
729 | |
2158 | |
730 | inline_size void |
2159 | inline_size void |
731 | feed_reverse_done (EV_P_ int revents) |
2160 | feed_reverse_done (EV_P_ int revents) |
… | |
… | |
745 | } |
2174 | } |
746 | |
2175 | |
747 | /*****************************************************************************/ |
2176 | /*****************************************************************************/ |
748 | |
2177 | |
749 | inline_speed void |
2178 | inline_speed void |
750 | fd_event (EV_P_ int fd, int revents) |
2179 | fd_event_nocheck (EV_P_ int fd, int revents) |
751 | { |
2180 | { |
752 | ANFD *anfd = anfds + fd; |
2181 | ANFD *anfd = anfds + fd; |
753 | ev_io *w; |
2182 | ev_io *w; |
754 | |
2183 | |
755 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2184 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
759 | if (ev) |
2188 | if (ev) |
760 | ev_feed_event (EV_A_ (W)w, ev); |
2189 | ev_feed_event (EV_A_ (W)w, ev); |
761 | } |
2190 | } |
762 | } |
2191 | } |
763 | |
2192 | |
764 | void |
2193 | /* do not submit kernel events for fds that have reify set */ |
|
|
2194 | /* because that means they changed while we were polling for new events */ |
|
|
2195 | inline_speed void |
765 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2196 | fd_event (EV_P_ int fd, int revents) |
|
|
2197 | { |
|
|
2198 | ANFD *anfd = anfds + fd; |
|
|
2199 | |
|
|
2200 | if (ecb_expect_true (!anfd->reify)) |
|
|
2201 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
2202 | } |
|
|
2203 | |
|
|
2204 | void |
|
|
2205 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT |
766 | { |
2206 | { |
767 | if (fd >= 0 && fd < anfdmax) |
2207 | if (fd >= 0 && fd < anfdmax) |
768 | fd_event (EV_A_ fd, revents); |
2208 | fd_event_nocheck (EV_A_ fd, revents); |
769 | } |
2209 | } |
770 | |
2210 | |
771 | /* make sure the external fd watch events are in-sync */ |
2211 | /* make sure the external fd watch events are in-sync */ |
772 | /* with the kernel/libev internal state */ |
2212 | /* with the kernel/libev internal state */ |
773 | inline_size void |
2213 | inline_size void |
774 | fd_reify (EV_P) |
2214 | fd_reify (EV_P) |
775 | { |
2215 | { |
776 | int i; |
2216 | int i; |
777 | |
2217 | |
|
|
2218 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2219 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2220 | { |
|
|
2221 | int fd = fdchanges [i]; |
|
|
2222 | ANFD *anfd = anfds + fd; |
|
|
2223 | |
|
|
2224 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2225 | { |
|
|
2226 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2227 | |
|
|
2228 | if (handle != anfd->handle) |
|
|
2229 | { |
|
|
2230 | unsigned long arg; |
|
|
2231 | |
|
|
2232 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2233 | |
|
|
2234 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2235 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2236 | anfd->events = 0; |
|
|
2237 | anfd->handle = handle; |
|
|
2238 | } |
|
|
2239 | } |
|
|
2240 | } |
|
|
2241 | #endif |
|
|
2242 | |
778 | for (i = 0; i < fdchangecnt; ++i) |
2243 | for (i = 0; i < fdchangecnt; ++i) |
779 | { |
2244 | { |
780 | int fd = fdchanges [i]; |
2245 | int fd = fdchanges [i]; |
781 | ANFD *anfd = anfds + fd; |
2246 | ANFD *anfd = anfds + fd; |
782 | ev_io *w; |
2247 | ev_io *w; |
783 | |
2248 | |
784 | unsigned char events = 0; |
2249 | unsigned char o_events = anfd->events; |
|
|
2250 | unsigned char o_reify = anfd->reify; |
785 | |
2251 | |
786 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2252 | anfd->reify = 0; |
787 | events |= (unsigned char)w->events; |
|
|
788 | |
2253 | |
789 | #if EV_SELECT_IS_WINSOCKET |
2254 | /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
790 | if (events) |
|
|
791 | { |
2255 | { |
792 | unsigned long arg; |
2256 | anfd->events = 0; |
793 | #ifdef EV_FD_TO_WIN32_HANDLE |
2257 | |
794 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
2258 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
795 | #else |
2259 | anfd->events |= (unsigned char)w->events; |
796 | anfd->handle = _get_osfhandle (fd); |
2260 | |
797 | #endif |
2261 | if (o_events != anfd->events) |
798 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
2262 | o_reify = EV__IOFDSET; /* actually |= */ |
799 | } |
2263 | } |
800 | #endif |
|
|
801 | |
2264 | |
802 | { |
2265 | if (o_reify & EV__IOFDSET) |
803 | unsigned char o_events = anfd->events; |
|
|
804 | unsigned char o_reify = anfd->reify; |
|
|
805 | |
|
|
806 | anfd->reify = 0; |
|
|
807 | anfd->events = events; |
|
|
808 | |
|
|
809 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
810 | backend_modify (EV_A_ fd, o_events, events); |
2266 | backend_modify (EV_A_ fd, o_events, anfd->events); |
811 | } |
|
|
812 | } |
2267 | } |
813 | |
2268 | |
814 | fdchangecnt = 0; |
2269 | fdchangecnt = 0; |
815 | } |
2270 | } |
816 | |
2271 | |
817 | /* something about the given fd changed */ |
2272 | /* something about the given fd changed */ |
818 | inline_size void |
2273 | inline_size |
|
|
2274 | void |
819 | fd_change (EV_P_ int fd, int flags) |
2275 | fd_change (EV_P_ int fd, int flags) |
820 | { |
2276 | { |
821 | unsigned char reify = anfds [fd].reify; |
2277 | unsigned char reify = anfds [fd].reify; |
822 | anfds [fd].reify |= flags; |
2278 | anfds [fd].reify |= flags; |
823 | |
2279 | |
824 | if (expect_true (!reify)) |
2280 | if (ecb_expect_true (!reify)) |
825 | { |
2281 | { |
826 | ++fdchangecnt; |
2282 | ++fdchangecnt; |
827 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
2283 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); |
828 | fdchanges [fdchangecnt - 1] = fd; |
2284 | fdchanges [fdchangecnt - 1] = fd; |
829 | } |
2285 | } |
830 | } |
2286 | } |
831 | |
2287 | |
832 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2288 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
833 | inline_speed void |
2289 | inline_speed ecb_cold void |
834 | fd_kill (EV_P_ int fd) |
2290 | fd_kill (EV_P_ int fd) |
835 | { |
2291 | { |
836 | ev_io *w; |
2292 | ev_io *w; |
837 | |
2293 | |
838 | while ((w = (ev_io *)anfds [fd].head)) |
2294 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
840 | ev_io_stop (EV_A_ w); |
2296 | ev_io_stop (EV_A_ w); |
841 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2297 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
842 | } |
2298 | } |
843 | } |
2299 | } |
844 | |
2300 | |
845 | /* check whether the given fd is atcually valid, for error recovery */ |
2301 | /* check whether the given fd is actually valid, for error recovery */ |
846 | inline_size int |
2302 | inline_size ecb_cold int |
847 | fd_valid (int fd) |
2303 | fd_valid (int fd) |
848 | { |
2304 | { |
849 | #ifdef _WIN32 |
2305 | #ifdef _WIN32 |
850 | return _get_osfhandle (fd) != -1; |
2306 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
851 | #else |
2307 | #else |
852 | return fcntl (fd, F_GETFD) != -1; |
2308 | return fcntl (fd, F_GETFD) != -1; |
853 | #endif |
2309 | #endif |
854 | } |
2310 | } |
855 | |
2311 | |
856 | /* called on EBADF to verify fds */ |
2312 | /* called on EBADF to verify fds */ |
857 | static void noinline |
2313 | ecb_noinline ecb_cold |
|
|
2314 | static void |
858 | fd_ebadf (EV_P) |
2315 | fd_ebadf (EV_P) |
859 | { |
2316 | { |
860 | int fd; |
2317 | int fd; |
861 | |
2318 | |
862 | for (fd = 0; fd < anfdmax; ++fd) |
2319 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
864 | if (!fd_valid (fd) && errno == EBADF) |
2321 | if (!fd_valid (fd) && errno == EBADF) |
865 | fd_kill (EV_A_ fd); |
2322 | fd_kill (EV_A_ fd); |
866 | } |
2323 | } |
867 | |
2324 | |
868 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2325 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
869 | static void noinline |
2326 | ecb_noinline ecb_cold |
|
|
2327 | static void |
870 | fd_enomem (EV_P) |
2328 | fd_enomem (EV_P) |
871 | { |
2329 | { |
872 | int fd; |
2330 | int fd; |
873 | |
2331 | |
874 | for (fd = anfdmax; fd--; ) |
2332 | for (fd = anfdmax; fd--; ) |
875 | if (anfds [fd].events) |
2333 | if (anfds [fd].events) |
876 | { |
2334 | { |
877 | fd_kill (EV_A_ fd); |
2335 | fd_kill (EV_A_ fd); |
878 | return; |
2336 | break; |
879 | } |
2337 | } |
880 | } |
2338 | } |
881 | |
2339 | |
882 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
2340 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
883 | static void noinline |
2341 | ecb_noinline |
|
|
2342 | static void |
884 | fd_rearm_all (EV_P) |
2343 | fd_rearm_all (EV_P) |
885 | { |
2344 | { |
886 | int fd; |
2345 | int fd; |
887 | |
2346 | |
888 | for (fd = 0; fd < anfdmax; ++fd) |
2347 | for (fd = 0; fd < anfdmax; ++fd) |
889 | if (anfds [fd].events) |
2348 | if (anfds [fd].events) |
890 | { |
2349 | { |
891 | anfds [fd].events = 0; |
2350 | anfds [fd].events = 0; |
892 | anfds [fd].emask = 0; |
2351 | anfds [fd].emask = 0; |
893 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
2352 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
894 | } |
2353 | } |
895 | } |
2354 | } |
896 | |
2355 | |
|
|
2356 | /* used to prepare libev internal fd's */ |
|
|
2357 | /* this is not fork-safe */ |
|
|
2358 | inline_speed void |
|
|
2359 | fd_intern (int fd) |
|
|
2360 | { |
|
|
2361 | #ifdef _WIN32 |
|
|
2362 | unsigned long arg = 1; |
|
|
2363 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
2364 | #else |
|
|
2365 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
2366 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
2367 | #endif |
|
|
2368 | } |
|
|
2369 | |
897 | /*****************************************************************************/ |
2370 | /*****************************************************************************/ |
898 | |
2371 | |
899 | /* |
2372 | /* |
900 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
2373 | * the heap functions want a real array index. array index 0 is guaranteed to not |
901 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
2374 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
902 | * the branching factor of the d-tree. |
2375 | * the branching factor of the d-tree. |
903 | */ |
2376 | */ |
904 | |
2377 | |
905 | /* |
2378 | /* |
… | |
… | |
927 | ev_tstamp minat; |
2400 | ev_tstamp minat; |
928 | ANHE *minpos; |
2401 | ANHE *minpos; |
929 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
2402 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
930 | |
2403 | |
931 | /* find minimum child */ |
2404 | /* find minimum child */ |
932 | if (expect_true (pos + DHEAP - 1 < E)) |
2405 | if (ecb_expect_true (pos + DHEAP - 1 < E)) |
933 | { |
2406 | { |
934 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2407 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
935 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2408 | if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
936 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2409 | if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
937 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2410 | if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
938 | } |
2411 | } |
939 | else if (pos < E) |
2412 | else if (pos < E) |
940 | { |
2413 | { |
941 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
2414 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
942 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
2415 | if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
943 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
2416 | if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
944 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
2417 | if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
945 | } |
2418 | } |
946 | else |
2419 | else |
947 | break; |
2420 | break; |
948 | |
2421 | |
949 | if (ANHE_at (he) <= minat) |
2422 | if (ANHE_at (he) <= minat) |
… | |
… | |
957 | |
2430 | |
958 | heap [k] = he; |
2431 | heap [k] = he; |
959 | ev_active (ANHE_w (he)) = k; |
2432 | ev_active (ANHE_w (he)) = k; |
960 | } |
2433 | } |
961 | |
2434 | |
962 | #else /* 4HEAP */ |
2435 | #else /* not 4HEAP */ |
963 | |
2436 | |
964 | #define HEAP0 1 |
2437 | #define HEAP0 1 |
965 | #define HPARENT(k) ((k) >> 1) |
2438 | #define HPARENT(k) ((k) >> 1) |
966 | #define UPHEAP_DONE(p,k) (!(p)) |
2439 | #define UPHEAP_DONE(p,k) (!(p)) |
967 | |
2440 | |
… | |
… | |
973 | |
2446 | |
974 | for (;;) |
2447 | for (;;) |
975 | { |
2448 | { |
976 | int c = k << 1; |
2449 | int c = k << 1; |
977 | |
2450 | |
978 | if (c > N + HEAP0 - 1) |
2451 | if (c >= N + HEAP0) |
979 | break; |
2452 | break; |
980 | |
2453 | |
981 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
2454 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
982 | ? 1 : 0; |
2455 | ? 1 : 0; |
983 | |
2456 | |
… | |
… | |
1019 | |
2492 | |
1020 | /* move an element suitably so it is in a correct place */ |
2493 | /* move an element suitably so it is in a correct place */ |
1021 | inline_size void |
2494 | inline_size void |
1022 | adjustheap (ANHE *heap, int N, int k) |
2495 | adjustheap (ANHE *heap, int N, int k) |
1023 | { |
2496 | { |
1024 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
2497 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1025 | upheap (heap, k); |
2498 | upheap (heap, k); |
1026 | else |
2499 | else |
1027 | downheap (heap, N, k); |
2500 | downheap (heap, N, k); |
1028 | } |
2501 | } |
1029 | |
2502 | |
… | |
… | |
1042 | /*****************************************************************************/ |
2515 | /*****************************************************************************/ |
1043 | |
2516 | |
1044 | /* associate signal watchers to a signal signal */ |
2517 | /* associate signal watchers to a signal signal */ |
1045 | typedef struct |
2518 | typedef struct |
1046 | { |
2519 | { |
|
|
2520 | EV_ATOMIC_T pending; |
|
|
2521 | #if EV_MULTIPLICITY |
|
|
2522 | EV_P; |
|
|
2523 | #endif |
1047 | WL head; |
2524 | WL head; |
1048 | EV_ATOMIC_T gotsig; |
|
|
1049 | } ANSIG; |
2525 | } ANSIG; |
1050 | |
2526 | |
1051 | static ANSIG *signals; |
2527 | static ANSIG signals [EV_NSIG - 1]; |
1052 | static int signalmax; |
|
|
1053 | |
|
|
1054 | static EV_ATOMIC_T gotsig; |
|
|
1055 | |
2528 | |
1056 | /*****************************************************************************/ |
2529 | /*****************************************************************************/ |
1057 | |
2530 | |
1058 | /* used to prepare libev internal fd's */ |
2531 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1059 | /* this is not fork-safe */ |
2532 | |
|
|
2533 | ecb_noinline ecb_cold |
|
|
2534 | static void |
|
|
2535 | evpipe_init (EV_P) |
|
|
2536 | { |
|
|
2537 | if (!ev_is_active (&pipe_w)) |
|
|
2538 | { |
|
|
2539 | int fds [2]; |
|
|
2540 | |
|
|
2541 | # if EV_USE_EVENTFD |
|
|
2542 | fds [0] = -1; |
|
|
2543 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2544 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2545 | fds [1] = eventfd (0, 0); |
|
|
2546 | |
|
|
2547 | if (fds [1] < 0) |
|
|
2548 | # endif |
|
|
2549 | { |
|
|
2550 | while (pipe (fds)) |
|
|
2551 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2552 | |
|
|
2553 | fd_intern (fds [0]); |
|
|
2554 | } |
|
|
2555 | |
|
|
2556 | evpipe [0] = fds [0]; |
|
|
2557 | |
|
|
2558 | if (evpipe [1] < 0) |
|
|
2559 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2560 | else |
|
|
2561 | { |
|
|
2562 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2563 | /* so that evpipe_write can always rely on its value. */ |
|
|
2564 | /* this branch does not do anything sensible on windows, */ |
|
|
2565 | /* so must not be executed on windows */ |
|
|
2566 | |
|
|
2567 | dup2 (fds [1], evpipe [1]); |
|
|
2568 | close (fds [1]); |
|
|
2569 | } |
|
|
2570 | |
|
|
2571 | fd_intern (evpipe [1]); |
|
|
2572 | |
|
|
2573 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2574 | ev_io_start (EV_A_ &pipe_w); |
|
|
2575 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2576 | } |
|
|
2577 | } |
|
|
2578 | |
1060 | inline_speed void |
2579 | inline_speed void |
1061 | fd_intern (int fd) |
2580 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1062 | { |
2581 | { |
1063 | #ifdef _WIN32 |
2582 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
1064 | unsigned long arg = 1; |
|
|
1065 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1066 | #else |
|
|
1067 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1068 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1069 | #endif |
|
|
1070 | } |
|
|
1071 | |
2583 | |
1072 | static void noinline |
2584 | if (ecb_expect_true (*flag)) |
1073 | evpipe_init (EV_P) |
2585 | return; |
1074 | { |
2586 | |
1075 | if (!ev_is_active (&pipe_w)) |
2587 | *flag = 1; |
|
|
2588 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2589 | |
|
|
2590 | pipe_write_skipped = 1; |
|
|
2591 | |
|
|
2592 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2593 | |
|
|
2594 | if (pipe_write_wanted) |
1076 | { |
2595 | { |
|
|
2596 | int old_errno; |
|
|
2597 | |
|
|
2598 | pipe_write_skipped = 0; |
|
|
2599 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2600 | |
|
|
2601 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2602 | |
1077 | #if EV_USE_EVENTFD |
2603 | #if EV_USE_EVENTFD |
1078 | if ((evfd = eventfd (0, 0)) >= 0) |
2604 | if (evpipe [0] < 0) |
1079 | { |
2605 | { |
1080 | evpipe [0] = -1; |
2606 | uint64_t counter = 1; |
1081 | fd_intern (evfd); |
2607 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1082 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1083 | } |
2608 | } |
1084 | else |
2609 | else |
1085 | #endif |
2610 | #endif |
1086 | { |
2611 | { |
1087 | while (pipe (evpipe)) |
2612 | #ifdef _WIN32 |
1088 | ev_syserr ("(libev) error creating signal/async pipe"); |
2613 | WSABUF buf; |
1089 | |
2614 | DWORD sent; |
1090 | fd_intern (evpipe [0]); |
2615 | buf.buf = (char *)&buf; |
1091 | fd_intern (evpipe [1]); |
2616 | buf.len = 1; |
1092 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2617 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2618 | #else |
|
|
2619 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2620 | #endif |
1093 | } |
2621 | } |
1094 | |
|
|
1095 | ev_io_start (EV_A_ &pipe_w); |
|
|
1096 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1097 | } |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | inline_size void |
|
|
1101 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1102 | { |
|
|
1103 | if (!*flag) |
|
|
1104 | { |
|
|
1105 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1106 | |
|
|
1107 | *flag = 1; |
|
|
1108 | |
|
|
1109 | #if EV_USE_EVENTFD |
|
|
1110 | if (evfd >= 0) |
|
|
1111 | { |
|
|
1112 | uint64_t counter = 1; |
|
|
1113 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1114 | } |
|
|
1115 | else |
|
|
1116 | #endif |
|
|
1117 | write (evpipe [1], &old_errno, 1); |
|
|
1118 | |
2622 | |
1119 | errno = old_errno; |
2623 | errno = old_errno; |
1120 | } |
2624 | } |
1121 | } |
2625 | } |
1122 | |
2626 | |
1123 | /* called whenever the libev signal pipe */ |
2627 | /* called whenever the libev signal pipe */ |
1124 | /* got some events (signal, async) */ |
2628 | /* got some events (signal, async) */ |
1125 | static void |
2629 | static void |
1126 | pipecb (EV_P_ ev_io *iow, int revents) |
2630 | pipecb (EV_P_ ev_io *iow, int revents) |
1127 | { |
2631 | { |
|
|
2632 | int i; |
|
|
2633 | |
|
|
2634 | if (revents & EV_READ) |
|
|
2635 | { |
1128 | #if EV_USE_EVENTFD |
2636 | #if EV_USE_EVENTFD |
1129 | if (evfd >= 0) |
2637 | if (evpipe [0] < 0) |
1130 | { |
2638 | { |
1131 | uint64_t counter; |
2639 | uint64_t counter; |
1132 | read (evfd, &counter, sizeof (uint64_t)); |
2640 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1133 | } |
2641 | } |
1134 | else |
2642 | else |
1135 | #endif |
2643 | #endif |
1136 | { |
2644 | { |
1137 | char dummy; |
2645 | char dummy[4]; |
|
|
2646 | #ifdef _WIN32 |
|
|
2647 | WSABUF buf; |
|
|
2648 | DWORD recvd; |
|
|
2649 | DWORD flags = 0; |
|
|
2650 | buf.buf = dummy; |
|
|
2651 | buf.len = sizeof (dummy); |
|
|
2652 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2653 | #else |
1138 | read (evpipe [0], &dummy, 1); |
2654 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2655 | #endif |
|
|
2656 | } |
|
|
2657 | } |
|
|
2658 | |
|
|
2659 | pipe_write_skipped = 0; |
|
|
2660 | |
|
|
2661 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2662 | |
|
|
2663 | #if EV_SIGNAL_ENABLE |
|
|
2664 | if (sig_pending) |
1139 | } |
2665 | { |
|
|
2666 | sig_pending = 0; |
1140 | |
2667 | |
1141 | if (gotsig && ev_is_default_loop (EV_A)) |
2668 | ECB_MEMORY_FENCE; |
1142 | { |
|
|
1143 | int signum; |
|
|
1144 | gotsig = 0; |
|
|
1145 | |
2669 | |
1146 | for (signum = signalmax; signum--; ) |
2670 | for (i = EV_NSIG - 1; i--; ) |
1147 | if (signals [signum].gotsig) |
2671 | if (ecb_expect_false (signals [i].pending)) |
1148 | ev_feed_signal_event (EV_A_ signum + 1); |
2672 | ev_feed_signal_event (EV_A_ i + 1); |
1149 | } |
2673 | } |
|
|
2674 | #endif |
1150 | |
2675 | |
1151 | #if EV_ASYNC_ENABLE |
2676 | #if EV_ASYNC_ENABLE |
1152 | if (gotasync) |
2677 | if (async_pending) |
1153 | { |
2678 | { |
1154 | int i; |
2679 | async_pending = 0; |
1155 | gotasync = 0; |
2680 | |
|
|
2681 | ECB_MEMORY_FENCE; |
1156 | |
2682 | |
1157 | for (i = asynccnt; i--; ) |
2683 | for (i = asynccnt; i--; ) |
1158 | if (asyncs [i]->sent) |
2684 | if (asyncs [i]->sent) |
1159 | { |
2685 | { |
1160 | asyncs [i]->sent = 0; |
2686 | asyncs [i]->sent = 0; |
|
|
2687 | ECB_MEMORY_FENCE_RELEASE; |
1161 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2688 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1162 | } |
2689 | } |
1163 | } |
2690 | } |
1164 | #endif |
2691 | #endif |
1165 | } |
2692 | } |
1166 | |
2693 | |
1167 | /*****************************************************************************/ |
2694 | /*****************************************************************************/ |
1168 | |
2695 | |
|
|
2696 | void |
|
|
2697 | ev_feed_signal (int signum) EV_NOEXCEPT |
|
|
2698 | { |
|
|
2699 | #if EV_MULTIPLICITY |
|
|
2700 | EV_P; |
|
|
2701 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2702 | EV_A = signals [signum - 1].loop; |
|
|
2703 | |
|
|
2704 | if (!EV_A) |
|
|
2705 | return; |
|
|
2706 | #endif |
|
|
2707 | |
|
|
2708 | signals [signum - 1].pending = 1; |
|
|
2709 | evpipe_write (EV_A_ &sig_pending); |
|
|
2710 | } |
|
|
2711 | |
1169 | static void |
2712 | static void |
1170 | ev_sighandler (int signum) |
2713 | ev_sighandler (int signum) |
1171 | { |
2714 | { |
|
|
2715 | #ifdef _WIN32 |
|
|
2716 | signal (signum, ev_sighandler); |
|
|
2717 | #endif |
|
|
2718 | |
|
|
2719 | ev_feed_signal (signum); |
|
|
2720 | } |
|
|
2721 | |
|
|
2722 | ecb_noinline |
|
|
2723 | void |
|
|
2724 | ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT |
|
|
2725 | { |
|
|
2726 | WL w; |
|
|
2727 | |
|
|
2728 | if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG)) |
|
|
2729 | return; |
|
|
2730 | |
|
|
2731 | --signum; |
|
|
2732 | |
1172 | #if EV_MULTIPLICITY |
2733 | #if EV_MULTIPLICITY |
1173 | struct ev_loop *loop = &default_loop_struct; |
2734 | /* it is permissible to try to feed a signal to the wrong loop */ |
1174 | #endif |
2735 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1175 | |
2736 | |
1176 | #if _WIN32 |
2737 | if (ecb_expect_false (signals [signum].loop != EV_A)) |
1177 | signal (signum, ev_sighandler); |
|
|
1178 | #endif |
|
|
1179 | |
|
|
1180 | signals [signum - 1].gotsig = 1; |
|
|
1181 | evpipe_write (EV_A_ &gotsig); |
|
|
1182 | } |
|
|
1183 | |
|
|
1184 | void noinline |
|
|
1185 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1186 | { |
|
|
1187 | WL w; |
|
|
1188 | |
|
|
1189 | #if EV_MULTIPLICITY |
|
|
1190 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1191 | #endif |
|
|
1192 | |
|
|
1193 | --signum; |
|
|
1194 | |
|
|
1195 | if (signum < 0 || signum >= signalmax) |
|
|
1196 | return; |
2738 | return; |
|
|
2739 | #endif |
1197 | |
2740 | |
1198 | signals [signum].gotsig = 0; |
2741 | signals [signum].pending = 0; |
|
|
2742 | ECB_MEMORY_FENCE_RELEASE; |
1199 | |
2743 | |
1200 | for (w = signals [signum].head; w; w = w->next) |
2744 | for (w = signals [signum].head; w; w = w->next) |
1201 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2745 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1202 | } |
2746 | } |
1203 | |
2747 | |
|
|
2748 | #if EV_USE_SIGNALFD |
|
|
2749 | static void |
|
|
2750 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2751 | { |
|
|
2752 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2753 | |
|
|
2754 | for (;;) |
|
|
2755 | { |
|
|
2756 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2757 | |
|
|
2758 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2759 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2760 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2761 | |
|
|
2762 | if (res < (ssize_t)sizeof (si)) |
|
|
2763 | break; |
|
|
2764 | } |
|
|
2765 | } |
|
|
2766 | #endif |
|
|
2767 | |
|
|
2768 | #endif |
|
|
2769 | |
1204 | /*****************************************************************************/ |
2770 | /*****************************************************************************/ |
1205 | |
2771 | |
|
|
2772 | #if EV_CHILD_ENABLE |
1206 | static WL childs [EV_PID_HASHSIZE]; |
2773 | static WL childs [EV_PID_HASHSIZE]; |
1207 | |
|
|
1208 | #ifndef _WIN32 |
|
|
1209 | |
2774 | |
1210 | static ev_signal childev; |
2775 | static ev_signal childev; |
1211 | |
2776 | |
1212 | #ifndef WIFCONTINUED |
2777 | #ifndef WIFCONTINUED |
1213 | # define WIFCONTINUED(status) 0 |
2778 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1218 | child_reap (EV_P_ int chain, int pid, int status) |
2783 | child_reap (EV_P_ int chain, int pid, int status) |
1219 | { |
2784 | { |
1220 | ev_child *w; |
2785 | ev_child *w; |
1221 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
2786 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1222 | |
2787 | |
1223 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2788 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1224 | { |
2789 | { |
1225 | if ((w->pid == pid || !w->pid) |
2790 | if ((w->pid == pid || !w->pid) |
1226 | && (!traced || (w->flags & 1))) |
2791 | && (!traced || (w->flags & 1))) |
1227 | { |
2792 | { |
1228 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
2793 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1253 | /* make sure we are called again until all children have been reaped */ |
2818 | /* make sure we are called again until all children have been reaped */ |
1254 | /* we need to do it this way so that the callback gets called before we continue */ |
2819 | /* we need to do it this way so that the callback gets called before we continue */ |
1255 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2820 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1256 | |
2821 | |
1257 | child_reap (EV_A_ pid, pid, status); |
2822 | child_reap (EV_A_ pid, pid, status); |
1258 | if (EV_PID_HASHSIZE > 1) |
2823 | if ((EV_PID_HASHSIZE) > 1) |
1259 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2824 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1260 | } |
2825 | } |
1261 | |
2826 | |
1262 | #endif |
2827 | #endif |
1263 | |
2828 | |
1264 | /*****************************************************************************/ |
2829 | /*****************************************************************************/ |
1265 | |
2830 | |
|
|
2831 | #if EV_USE_IOCP |
|
|
2832 | # include "ev_iocp.c" |
|
|
2833 | #endif |
1266 | #if EV_USE_PORT |
2834 | #if EV_USE_PORT |
1267 | # include "ev_port.c" |
2835 | # include "ev_port.c" |
1268 | #endif |
2836 | #endif |
1269 | #if EV_USE_KQUEUE |
2837 | #if EV_USE_KQUEUE |
1270 | # include "ev_kqueue.c" |
2838 | # include "ev_kqueue.c" |
1271 | #endif |
2839 | #endif |
1272 | #if EV_USE_EPOLL |
2840 | #if EV_USE_EPOLL |
1273 | # include "ev_epoll.c" |
2841 | # include "ev_epoll.c" |
1274 | #endif |
2842 | #endif |
|
|
2843 | #if EV_USE_LINUXAIO |
|
|
2844 | # include "ev_linuxaio.c" |
|
|
2845 | #endif |
|
|
2846 | #if EV_USE_IOURING |
|
|
2847 | # include "ev_iouring.c" |
|
|
2848 | #endif |
1275 | #if EV_USE_POLL |
2849 | #if EV_USE_POLL |
1276 | # include "ev_poll.c" |
2850 | # include "ev_poll.c" |
1277 | #endif |
2851 | #endif |
1278 | #if EV_USE_SELECT |
2852 | #if EV_USE_SELECT |
1279 | # include "ev_select.c" |
2853 | # include "ev_select.c" |
1280 | #endif |
2854 | #endif |
1281 | |
2855 | |
1282 | int |
2856 | ecb_cold int |
1283 | ev_version_major (void) |
2857 | ev_version_major (void) EV_NOEXCEPT |
1284 | { |
2858 | { |
1285 | return EV_VERSION_MAJOR; |
2859 | return EV_VERSION_MAJOR; |
1286 | } |
2860 | } |
1287 | |
2861 | |
1288 | int |
2862 | ecb_cold int |
1289 | ev_version_minor (void) |
2863 | ev_version_minor (void) EV_NOEXCEPT |
1290 | { |
2864 | { |
1291 | return EV_VERSION_MINOR; |
2865 | return EV_VERSION_MINOR; |
1292 | } |
2866 | } |
1293 | |
2867 | |
1294 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2868 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1295 | int inline_size |
2869 | inline_size ecb_cold int |
1296 | enable_secure (void) |
2870 | enable_secure (void) |
1297 | { |
2871 | { |
1298 | #ifdef _WIN32 |
2872 | #ifdef _WIN32 |
1299 | return 0; |
2873 | return 0; |
1300 | #else |
2874 | #else |
1301 | return getuid () != geteuid () |
2875 | return getuid () != geteuid () |
1302 | || getgid () != getegid (); |
2876 | || getgid () != getegid (); |
1303 | #endif |
2877 | #endif |
1304 | } |
2878 | } |
1305 | |
2879 | |
|
|
2880 | ecb_cold |
1306 | unsigned int |
2881 | unsigned int |
1307 | ev_supported_backends (void) |
2882 | ev_supported_backends (void) EV_NOEXCEPT |
1308 | { |
2883 | { |
1309 | unsigned int flags = 0; |
2884 | unsigned int flags = 0; |
1310 | |
2885 | |
1311 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2886 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1312 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2887 | if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; |
1313 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
2888 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2889 | if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; |
|
|
2890 | if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING; |
1314 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
2891 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
1315 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2892 | if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; |
1316 | |
2893 | |
1317 | return flags; |
2894 | return flags; |
1318 | } |
2895 | } |
1319 | |
2896 | |
|
|
2897 | ecb_cold |
1320 | unsigned int |
2898 | unsigned int |
1321 | ev_recommended_backends (void) |
2899 | ev_recommended_backends (void) EV_NOEXCEPT |
1322 | { |
2900 | { |
1323 | unsigned int flags = ev_supported_backends (); |
2901 | unsigned int flags = ev_supported_backends (); |
1324 | |
2902 | |
1325 | #ifndef __NetBSD__ |
2903 | #ifndef __NetBSD__ |
1326 | /* kqueue is borked on everything but netbsd apparently */ |
2904 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1330 | #ifdef __APPLE__ |
2908 | #ifdef __APPLE__ |
1331 | /* only select works correctly on that "unix-certified" platform */ |
2909 | /* only select works correctly on that "unix-certified" platform */ |
1332 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
2910 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1333 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
2911 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1334 | #endif |
2912 | #endif |
|
|
2913 | #ifdef __FreeBSD__ |
|
|
2914 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2915 | #endif |
|
|
2916 | |
|
|
2917 | /* TODO: linuxaio is very experimental */ |
|
|
2918 | #if !EV_RECOMMEND_LINUXAIO |
|
|
2919 | flags &= ~EVBACKEND_LINUXAIO; |
|
|
2920 | #endif |
|
|
2921 | /* TODO: linuxaio is super experimental */ |
|
|
2922 | #if !EV_RECOMMEND_IOURING |
|
|
2923 | flags &= ~EVBACKEND_IOURING; |
|
|
2924 | #endif |
1335 | |
2925 | |
1336 | return flags; |
2926 | return flags; |
1337 | } |
2927 | } |
1338 | |
2928 | |
|
|
2929 | ecb_cold |
1339 | unsigned int |
2930 | unsigned int |
1340 | ev_embeddable_backends (void) |
2931 | ev_embeddable_backends (void) EV_NOEXCEPT |
1341 | { |
2932 | { |
1342 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2933 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1343 | |
2934 | |
1344 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2935 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1345 | /* please fix it and tell me how to detect the fix */ |
2936 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1346 | flags &= ~EVBACKEND_EPOLL; |
2937 | flags &= ~EVBACKEND_EPOLL; |
|
|
2938 | |
|
|
2939 | /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */ |
|
|
2940 | |
|
|
2941 | /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not |
|
|
2942 | * because our backend_fd is the epoll fd we need as fallback. |
|
|
2943 | * if the kernel ever is fixed, this might change... |
|
|
2944 | */ |
1347 | |
2945 | |
1348 | return flags; |
2946 | return flags; |
1349 | } |
2947 | } |
1350 | |
2948 | |
1351 | unsigned int |
2949 | unsigned int |
1352 | ev_backend (EV_P) |
2950 | ev_backend (EV_P) EV_NOEXCEPT |
1353 | { |
2951 | { |
1354 | return backend; |
2952 | return backend; |
1355 | } |
2953 | } |
1356 | |
2954 | |
|
|
2955 | #if EV_FEATURE_API |
1357 | unsigned int |
2956 | unsigned int |
1358 | ev_loop_count (EV_P) |
2957 | ev_iteration (EV_P) EV_NOEXCEPT |
1359 | { |
2958 | { |
1360 | return loop_count; |
2959 | return loop_count; |
1361 | } |
2960 | } |
1362 | |
2961 | |
|
|
2962 | unsigned int |
|
|
2963 | ev_depth (EV_P) EV_NOEXCEPT |
|
|
2964 | { |
|
|
2965 | return loop_depth; |
|
|
2966 | } |
|
|
2967 | |
1363 | void |
2968 | void |
1364 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2969 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1365 | { |
2970 | { |
1366 | io_blocktime = interval; |
2971 | io_blocktime = interval; |
1367 | } |
2972 | } |
1368 | |
2973 | |
1369 | void |
2974 | void |
1370 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2975 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT |
1371 | { |
2976 | { |
1372 | timeout_blocktime = interval; |
2977 | timeout_blocktime = interval; |
1373 | } |
2978 | } |
1374 | |
2979 | |
|
|
2980 | void |
|
|
2981 | ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT |
|
|
2982 | { |
|
|
2983 | userdata = data; |
|
|
2984 | } |
|
|
2985 | |
|
|
2986 | void * |
|
|
2987 | ev_userdata (EV_P) EV_NOEXCEPT |
|
|
2988 | { |
|
|
2989 | return userdata; |
|
|
2990 | } |
|
|
2991 | |
|
|
2992 | void |
|
|
2993 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT |
|
|
2994 | { |
|
|
2995 | invoke_cb = invoke_pending_cb; |
|
|
2996 | } |
|
|
2997 | |
|
|
2998 | void |
|
|
2999 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT |
|
|
3000 | { |
|
|
3001 | release_cb = release; |
|
|
3002 | acquire_cb = acquire; |
|
|
3003 | } |
|
|
3004 | #endif |
|
|
3005 | |
1375 | /* initialise a loop structure, must be zero-initialised */ |
3006 | /* initialise a loop structure, must be zero-initialised */ |
1376 | static void noinline |
3007 | ecb_noinline ecb_cold |
|
|
3008 | static void |
1377 | loop_init (EV_P_ unsigned int flags) |
3009 | loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT |
1378 | { |
3010 | { |
1379 | if (!backend) |
3011 | if (!backend) |
1380 | { |
3012 | { |
|
|
3013 | origflags = flags; |
|
|
3014 | |
1381 | #if EV_USE_REALTIME |
3015 | #if EV_USE_REALTIME |
1382 | if (!have_realtime) |
3016 | if (!have_realtime) |
1383 | { |
3017 | { |
1384 | struct timespec ts; |
3018 | struct timespec ts; |
1385 | |
3019 | |
… | |
… | |
1396 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
3030 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1397 | have_monotonic = 1; |
3031 | have_monotonic = 1; |
1398 | } |
3032 | } |
1399 | #endif |
3033 | #endif |
1400 | |
3034 | |
1401 | ev_rt_now = ev_time (); |
|
|
1402 | mn_now = get_clock (); |
|
|
1403 | now_floor = mn_now; |
|
|
1404 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1405 | |
|
|
1406 | io_blocktime = 0.; |
|
|
1407 | timeout_blocktime = 0.; |
|
|
1408 | backend = 0; |
|
|
1409 | backend_fd = -1; |
|
|
1410 | gotasync = 0; |
|
|
1411 | #if EV_USE_INOTIFY |
|
|
1412 | fs_fd = -2; |
|
|
1413 | #endif |
|
|
1414 | |
|
|
1415 | /* pid check not overridable via env */ |
3035 | /* pid check not overridable via env */ |
1416 | #ifndef _WIN32 |
3036 | #ifndef _WIN32 |
1417 | if (flags & EVFLAG_FORKCHECK) |
3037 | if (flags & EVFLAG_FORKCHECK) |
1418 | curpid = getpid (); |
3038 | curpid = getpid (); |
1419 | #endif |
3039 | #endif |
… | |
… | |
1421 | if (!(flags & EVFLAG_NOENV) |
3041 | if (!(flags & EVFLAG_NOENV) |
1422 | && !enable_secure () |
3042 | && !enable_secure () |
1423 | && getenv ("LIBEV_FLAGS")) |
3043 | && getenv ("LIBEV_FLAGS")) |
1424 | flags = atoi (getenv ("LIBEV_FLAGS")); |
3044 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1425 | |
3045 | |
1426 | if (!(flags & 0x0000ffffU)) |
3046 | ev_rt_now = ev_time (); |
|
|
3047 | mn_now = get_clock (); |
|
|
3048 | now_floor = mn_now; |
|
|
3049 | rtmn_diff = ev_rt_now - mn_now; |
|
|
3050 | #if EV_FEATURE_API |
|
|
3051 | invoke_cb = ev_invoke_pending; |
|
|
3052 | #endif |
|
|
3053 | |
|
|
3054 | io_blocktime = 0.; |
|
|
3055 | timeout_blocktime = 0.; |
|
|
3056 | backend = 0; |
|
|
3057 | backend_fd = -1; |
|
|
3058 | sig_pending = 0; |
|
|
3059 | #if EV_ASYNC_ENABLE |
|
|
3060 | async_pending = 0; |
|
|
3061 | #endif |
|
|
3062 | pipe_write_skipped = 0; |
|
|
3063 | pipe_write_wanted = 0; |
|
|
3064 | evpipe [0] = -1; |
|
|
3065 | evpipe [1] = -1; |
|
|
3066 | #if EV_USE_INOTIFY |
|
|
3067 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
3068 | #endif |
|
|
3069 | #if EV_USE_SIGNALFD |
|
|
3070 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
3071 | #endif |
|
|
3072 | |
|
|
3073 | if (!(flags & EVBACKEND_MASK)) |
1427 | flags |= ev_recommended_backends (); |
3074 | flags |= ev_recommended_backends (); |
1428 | |
3075 | |
|
|
3076 | #if EV_USE_IOCP |
|
|
3077 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
3078 | #endif |
1429 | #if EV_USE_PORT |
3079 | #if EV_USE_PORT |
1430 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
3080 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1431 | #endif |
3081 | #endif |
1432 | #if EV_USE_KQUEUE |
3082 | #if EV_USE_KQUEUE |
1433 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
3083 | if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags); |
|
|
3084 | #endif |
|
|
3085 | #if EV_USE_IOURING |
|
|
3086 | if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags); |
|
|
3087 | #endif |
|
|
3088 | #if EV_USE_LINUXAIO |
|
|
3089 | if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); |
1434 | #endif |
3090 | #endif |
1435 | #if EV_USE_EPOLL |
3091 | #if EV_USE_EPOLL |
1436 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
3092 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
1437 | #endif |
3093 | #endif |
1438 | #if EV_USE_POLL |
3094 | #if EV_USE_POLL |
1439 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
3095 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
1440 | #endif |
3096 | #endif |
1441 | #if EV_USE_SELECT |
3097 | #if EV_USE_SELECT |
1442 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
3098 | if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags); |
1443 | #endif |
3099 | #endif |
1444 | |
3100 | |
1445 | ev_prepare_init (&pending_w, pendingcb); |
3101 | ev_prepare_init (&pending_w, pendingcb); |
1446 | |
3102 | |
|
|
3103 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1447 | ev_init (&pipe_w, pipecb); |
3104 | ev_init (&pipe_w, pipecb); |
1448 | ev_set_priority (&pipe_w, EV_MAXPRI); |
3105 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
3106 | #endif |
1449 | } |
3107 | } |
1450 | } |
3108 | } |
1451 | |
3109 | |
1452 | /* free up a loop structure */ |
3110 | /* free up a loop structure */ |
1453 | static void noinline |
3111 | ecb_cold |
|
|
3112 | void |
1454 | loop_destroy (EV_P) |
3113 | ev_loop_destroy (EV_P) |
1455 | { |
3114 | { |
1456 | int i; |
3115 | int i; |
1457 | |
3116 | |
|
|
3117 | #if EV_MULTIPLICITY |
|
|
3118 | /* mimic free (0) */ |
|
|
3119 | if (!EV_A) |
|
|
3120 | return; |
|
|
3121 | #endif |
|
|
3122 | |
|
|
3123 | #if EV_CLEANUP_ENABLE |
|
|
3124 | /* queue cleanup watchers (and execute them) */ |
|
|
3125 | if (ecb_expect_false (cleanupcnt)) |
|
|
3126 | { |
|
|
3127 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
3128 | EV_INVOKE_PENDING; |
|
|
3129 | } |
|
|
3130 | #endif |
|
|
3131 | |
|
|
3132 | #if EV_CHILD_ENABLE |
|
|
3133 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
3134 | { |
|
|
3135 | ev_ref (EV_A); /* child watcher */ |
|
|
3136 | ev_signal_stop (EV_A_ &childev); |
|
|
3137 | } |
|
|
3138 | #endif |
|
|
3139 | |
1458 | if (ev_is_active (&pipe_w)) |
3140 | if (ev_is_active (&pipe_w)) |
1459 | { |
3141 | { |
1460 | ev_ref (EV_A); /* signal watcher */ |
3142 | /*ev_ref (EV_A);*/ |
1461 | ev_io_stop (EV_A_ &pipe_w); |
3143 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1462 | |
3144 | |
|
|
3145 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
3146 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
3147 | } |
|
|
3148 | |
1463 | #if EV_USE_EVENTFD |
3149 | #if EV_USE_SIGNALFD |
1464 | if (evfd >= 0) |
3150 | if (ev_is_active (&sigfd_w)) |
1465 | close (evfd); |
3151 | close (sigfd); |
1466 | #endif |
3152 | #endif |
1467 | |
|
|
1468 | if (evpipe [0] >= 0) |
|
|
1469 | { |
|
|
1470 | close (evpipe [0]); |
|
|
1471 | close (evpipe [1]); |
|
|
1472 | } |
|
|
1473 | } |
|
|
1474 | |
3153 | |
1475 | #if EV_USE_INOTIFY |
3154 | #if EV_USE_INOTIFY |
1476 | if (fs_fd >= 0) |
3155 | if (fs_fd >= 0) |
1477 | close (fs_fd); |
3156 | close (fs_fd); |
1478 | #endif |
3157 | #endif |
1479 | |
3158 | |
1480 | if (backend_fd >= 0) |
3159 | if (backend_fd >= 0) |
1481 | close (backend_fd); |
3160 | close (backend_fd); |
1482 | |
3161 | |
|
|
3162 | #if EV_USE_IOCP |
|
|
3163 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
3164 | #endif |
1483 | #if EV_USE_PORT |
3165 | #if EV_USE_PORT |
1484 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
3166 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1485 | #endif |
3167 | #endif |
1486 | #if EV_USE_KQUEUE |
3168 | #if EV_USE_KQUEUE |
1487 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
3169 | if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A); |
|
|
3170 | #endif |
|
|
3171 | #if EV_USE_IOURING |
|
|
3172 | if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A); |
|
|
3173 | #endif |
|
|
3174 | #if EV_USE_LINUXAIO |
|
|
3175 | if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); |
1488 | #endif |
3176 | #endif |
1489 | #if EV_USE_EPOLL |
3177 | #if EV_USE_EPOLL |
1490 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
3178 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
1491 | #endif |
3179 | #endif |
1492 | #if EV_USE_POLL |
3180 | #if EV_USE_POLL |
1493 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
3181 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
1494 | #endif |
3182 | #endif |
1495 | #if EV_USE_SELECT |
3183 | #if EV_USE_SELECT |
1496 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
3184 | if (backend == EVBACKEND_SELECT ) select_destroy (EV_A); |
1497 | #endif |
3185 | #endif |
1498 | |
3186 | |
1499 | for (i = NUMPRI; i--; ) |
3187 | for (i = NUMPRI; i--; ) |
1500 | { |
3188 | { |
1501 | array_free (pending, [i]); |
3189 | array_free (pending, [i]); |
1502 | #if EV_IDLE_ENABLE |
3190 | #if EV_IDLE_ENABLE |
1503 | array_free (idle, [i]); |
3191 | array_free (idle, [i]); |
1504 | #endif |
3192 | #endif |
1505 | } |
3193 | } |
1506 | |
3194 | |
1507 | ev_free (anfds); anfdmax = 0; |
3195 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1508 | |
3196 | |
1509 | /* have to use the microsoft-never-gets-it-right macro */ |
3197 | /* have to use the microsoft-never-gets-it-right macro */ |
1510 | array_free (rfeed, EMPTY); |
3198 | array_free (rfeed, EMPTY); |
1511 | array_free (fdchange, EMPTY); |
3199 | array_free (fdchange, EMPTY); |
1512 | array_free (timer, EMPTY); |
3200 | array_free (timer, EMPTY); |
… | |
… | |
1514 | array_free (periodic, EMPTY); |
3202 | array_free (periodic, EMPTY); |
1515 | #endif |
3203 | #endif |
1516 | #if EV_FORK_ENABLE |
3204 | #if EV_FORK_ENABLE |
1517 | array_free (fork, EMPTY); |
3205 | array_free (fork, EMPTY); |
1518 | #endif |
3206 | #endif |
|
|
3207 | #if EV_CLEANUP_ENABLE |
|
|
3208 | array_free (cleanup, EMPTY); |
|
|
3209 | #endif |
1519 | array_free (prepare, EMPTY); |
3210 | array_free (prepare, EMPTY); |
1520 | array_free (check, EMPTY); |
3211 | array_free (check, EMPTY); |
1521 | #if EV_ASYNC_ENABLE |
3212 | #if EV_ASYNC_ENABLE |
1522 | array_free (async, EMPTY); |
3213 | array_free (async, EMPTY); |
1523 | #endif |
3214 | #endif |
1524 | |
3215 | |
1525 | backend = 0; |
3216 | backend = 0; |
|
|
3217 | |
|
|
3218 | #if EV_MULTIPLICITY |
|
|
3219 | if (ev_is_default_loop (EV_A)) |
|
|
3220 | #endif |
|
|
3221 | ev_default_loop_ptr = 0; |
|
|
3222 | #if EV_MULTIPLICITY |
|
|
3223 | else |
|
|
3224 | ev_free (EV_A); |
|
|
3225 | #endif |
1526 | } |
3226 | } |
1527 | |
3227 | |
1528 | #if EV_USE_INOTIFY |
3228 | #if EV_USE_INOTIFY |
1529 | inline_size void infy_fork (EV_P); |
3229 | inline_size void infy_fork (EV_P); |
1530 | #endif |
3230 | #endif |
1531 | |
3231 | |
1532 | inline_size void |
3232 | inline_size void |
1533 | loop_fork (EV_P) |
3233 | loop_fork (EV_P) |
1534 | { |
3234 | { |
1535 | #if EV_USE_PORT |
3235 | #if EV_USE_PORT |
1536 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
3236 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1537 | #endif |
3237 | #endif |
1538 | #if EV_USE_KQUEUE |
3238 | #if EV_USE_KQUEUE |
1539 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
3239 | if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); |
|
|
3240 | #endif |
|
|
3241 | #if EV_USE_IOURING |
|
|
3242 | if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A); |
|
|
3243 | #endif |
|
|
3244 | #if EV_USE_LINUXAIO |
|
|
3245 | if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); |
1540 | #endif |
3246 | #endif |
1541 | #if EV_USE_EPOLL |
3247 | #if EV_USE_EPOLL |
1542 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
3248 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1543 | #endif |
3249 | #endif |
1544 | #if EV_USE_INOTIFY |
3250 | #if EV_USE_INOTIFY |
1545 | infy_fork (EV_A); |
3251 | infy_fork (EV_A); |
1546 | #endif |
3252 | #endif |
1547 | |
3253 | |
|
|
3254 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1548 | if (ev_is_active (&pipe_w)) |
3255 | if (ev_is_active (&pipe_w) && postfork != 2) |
1549 | { |
3256 | { |
1550 | /* this "locks" the handlers against writing to the pipe */ |
3257 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1551 | /* while we modify the fd vars */ |
|
|
1552 | gotsig = 1; |
|
|
1553 | #if EV_ASYNC_ENABLE |
|
|
1554 | gotasync = 1; |
|
|
1555 | #endif |
|
|
1556 | |
3258 | |
1557 | ev_ref (EV_A); |
3259 | ev_ref (EV_A); |
1558 | ev_io_stop (EV_A_ &pipe_w); |
3260 | ev_io_stop (EV_A_ &pipe_w); |
1559 | |
3261 | |
1560 | #if EV_USE_EVENTFD |
|
|
1561 | if (evfd >= 0) |
|
|
1562 | close (evfd); |
|
|
1563 | #endif |
|
|
1564 | |
|
|
1565 | if (evpipe [0] >= 0) |
3262 | if (evpipe [0] >= 0) |
1566 | { |
3263 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1567 | close (evpipe [0]); |
|
|
1568 | close (evpipe [1]); |
|
|
1569 | } |
|
|
1570 | |
3264 | |
1571 | evpipe_init (EV_A); |
3265 | evpipe_init (EV_A); |
1572 | /* now iterate over everything, in case we missed something */ |
3266 | /* iterate over everything, in case we missed something before */ |
1573 | pipecb (EV_A_ &pipe_w, EV_READ); |
3267 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1574 | } |
3268 | } |
|
|
3269 | #endif |
1575 | |
3270 | |
1576 | postfork = 0; |
3271 | postfork = 0; |
1577 | } |
3272 | } |
1578 | |
3273 | |
1579 | #if EV_MULTIPLICITY |
3274 | #if EV_MULTIPLICITY |
1580 | |
3275 | |
|
|
3276 | ecb_cold |
1581 | struct ev_loop * |
3277 | struct ev_loop * |
1582 | ev_loop_new (unsigned int flags) |
3278 | ev_loop_new (unsigned int flags) EV_NOEXCEPT |
1583 | { |
3279 | { |
1584 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3280 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1585 | |
3281 | |
1586 | memset (loop, 0, sizeof (struct ev_loop)); |
3282 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1587 | |
|
|
1588 | loop_init (EV_A_ flags); |
3283 | loop_init (EV_A_ flags); |
1589 | |
3284 | |
1590 | if (ev_backend (EV_A)) |
3285 | if (ev_backend (EV_A)) |
1591 | return loop; |
3286 | return EV_A; |
1592 | |
3287 | |
|
|
3288 | ev_free (EV_A); |
1593 | return 0; |
3289 | return 0; |
1594 | } |
3290 | } |
1595 | |
3291 | |
1596 | void |
3292 | #endif /* multiplicity */ |
1597 | ev_loop_destroy (EV_P) |
|
|
1598 | { |
|
|
1599 | loop_destroy (EV_A); |
|
|
1600 | ev_free (loop); |
|
|
1601 | } |
|
|
1602 | |
|
|
1603 | void |
|
|
1604 | ev_loop_fork (EV_P) |
|
|
1605 | { |
|
|
1606 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1607 | } |
|
|
1608 | |
3293 | |
1609 | #if EV_VERIFY |
3294 | #if EV_VERIFY |
1610 | static void noinline |
3295 | ecb_noinline ecb_cold |
|
|
3296 | static void |
1611 | verify_watcher (EV_P_ W w) |
3297 | verify_watcher (EV_P_ W w) |
1612 | { |
3298 | { |
1613 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3299 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1614 | |
3300 | |
1615 | if (w->pending) |
3301 | if (w->pending) |
1616 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3302 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1617 | } |
3303 | } |
1618 | |
3304 | |
1619 | static void noinline |
3305 | ecb_noinline ecb_cold |
|
|
3306 | static void |
1620 | verify_heap (EV_P_ ANHE *heap, int N) |
3307 | verify_heap (EV_P_ ANHE *heap, int N) |
1621 | { |
3308 | { |
1622 | int i; |
3309 | int i; |
1623 | |
3310 | |
1624 | for (i = HEAP0; i < N + HEAP0; ++i) |
3311 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1629 | |
3316 | |
1630 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3317 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1631 | } |
3318 | } |
1632 | } |
3319 | } |
1633 | |
3320 | |
1634 | static void noinline |
3321 | ecb_noinline ecb_cold |
|
|
3322 | static void |
1635 | array_verify (EV_P_ W *ws, int cnt) |
3323 | array_verify (EV_P_ W *ws, int cnt) |
1636 | { |
3324 | { |
1637 | while (cnt--) |
3325 | while (cnt--) |
1638 | { |
3326 | { |
1639 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3327 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
1640 | verify_watcher (EV_A_ ws [cnt]); |
3328 | verify_watcher (EV_A_ ws [cnt]); |
1641 | } |
3329 | } |
1642 | } |
3330 | } |
1643 | #endif |
3331 | #endif |
1644 | |
3332 | |
1645 | void |
3333 | #if EV_FEATURE_API |
1646 | ev_loop_verify (EV_P) |
3334 | void ecb_cold |
|
|
3335 | ev_verify (EV_P) EV_NOEXCEPT |
1647 | { |
3336 | { |
1648 | #if EV_VERIFY |
3337 | #if EV_VERIFY |
1649 | int i; |
3338 | int i; |
1650 | WL w; |
3339 | WL w, w2; |
1651 | |
3340 | |
1652 | assert (activecnt >= -1); |
3341 | assert (activecnt >= -1); |
1653 | |
3342 | |
1654 | assert (fdchangemax >= fdchangecnt); |
3343 | assert (fdchangemax >= fdchangecnt); |
1655 | for (i = 0; i < fdchangecnt; ++i) |
3344 | for (i = 0; i < fdchangecnt; ++i) |
1656 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3345 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1657 | |
3346 | |
1658 | assert (anfdmax >= 0); |
3347 | assert (anfdmax >= 0); |
1659 | for (i = 0; i < anfdmax; ++i) |
3348 | for (i = 0; i < anfdmax; ++i) |
|
|
3349 | { |
|
|
3350 | int j = 0; |
|
|
3351 | |
1660 | for (w = anfds [i].head; w; w = w->next) |
3352 | for (w = w2 = anfds [i].head; w; w = w->next) |
1661 | { |
3353 | { |
1662 | verify_watcher (EV_A_ (W)w); |
3354 | verify_watcher (EV_A_ (W)w); |
|
|
3355 | |
|
|
3356 | if (j++ & 1) |
|
|
3357 | { |
|
|
3358 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3359 | w2 = w2->next; |
|
|
3360 | } |
|
|
3361 | |
1663 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3362 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1664 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3363 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1665 | } |
3364 | } |
|
|
3365 | } |
1666 | |
3366 | |
1667 | assert (timermax >= timercnt); |
3367 | assert (timermax >= timercnt); |
1668 | verify_heap (EV_A_ timers, timercnt); |
3368 | verify_heap (EV_A_ timers, timercnt); |
1669 | |
3369 | |
1670 | #if EV_PERIODIC_ENABLE |
3370 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1685 | #if EV_FORK_ENABLE |
3385 | #if EV_FORK_ENABLE |
1686 | assert (forkmax >= forkcnt); |
3386 | assert (forkmax >= forkcnt); |
1687 | array_verify (EV_A_ (W *)forks, forkcnt); |
3387 | array_verify (EV_A_ (W *)forks, forkcnt); |
1688 | #endif |
3388 | #endif |
1689 | |
3389 | |
|
|
3390 | #if EV_CLEANUP_ENABLE |
|
|
3391 | assert (cleanupmax >= cleanupcnt); |
|
|
3392 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3393 | #endif |
|
|
3394 | |
1690 | #if EV_ASYNC_ENABLE |
3395 | #if EV_ASYNC_ENABLE |
1691 | assert (asyncmax >= asynccnt); |
3396 | assert (asyncmax >= asynccnt); |
1692 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3397 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1693 | #endif |
3398 | #endif |
1694 | |
3399 | |
|
|
3400 | #if EV_PREPARE_ENABLE |
1695 | assert (preparemax >= preparecnt); |
3401 | assert (preparemax >= preparecnt); |
1696 | array_verify (EV_A_ (W *)prepares, preparecnt); |
3402 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
3403 | #endif |
1697 | |
3404 | |
|
|
3405 | #if EV_CHECK_ENABLE |
1698 | assert (checkmax >= checkcnt); |
3406 | assert (checkmax >= checkcnt); |
1699 | array_verify (EV_A_ (W *)checks, checkcnt); |
3407 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
3408 | #endif |
1700 | |
3409 | |
1701 | # if 0 |
3410 | # if 0 |
|
|
3411 | #if EV_CHILD_ENABLE |
1702 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
3412 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1703 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
3413 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
3414 | #endif |
1704 | # endif |
3415 | # endif |
1705 | #endif |
3416 | #endif |
1706 | } |
3417 | } |
1707 | |
3418 | #endif |
1708 | #endif /* multiplicity */ |
|
|
1709 | |
3419 | |
1710 | #if EV_MULTIPLICITY |
3420 | #if EV_MULTIPLICITY |
|
|
3421 | ecb_cold |
1711 | struct ev_loop * |
3422 | struct ev_loop * |
1712 | ev_default_loop_init (unsigned int flags) |
|
|
1713 | #else |
3423 | #else |
1714 | int |
3424 | int |
|
|
3425 | #endif |
1715 | ev_default_loop (unsigned int flags) |
3426 | ev_default_loop (unsigned int flags) EV_NOEXCEPT |
1716 | #endif |
|
|
1717 | { |
3427 | { |
1718 | if (!ev_default_loop_ptr) |
3428 | if (!ev_default_loop_ptr) |
1719 | { |
3429 | { |
1720 | #if EV_MULTIPLICITY |
3430 | #if EV_MULTIPLICITY |
1721 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
3431 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1722 | #else |
3432 | #else |
1723 | ev_default_loop_ptr = 1; |
3433 | ev_default_loop_ptr = 1; |
1724 | #endif |
3434 | #endif |
1725 | |
3435 | |
1726 | loop_init (EV_A_ flags); |
3436 | loop_init (EV_A_ flags); |
1727 | |
3437 | |
1728 | if (ev_backend (EV_A)) |
3438 | if (ev_backend (EV_A)) |
1729 | { |
3439 | { |
1730 | #ifndef _WIN32 |
3440 | #if EV_CHILD_ENABLE |
1731 | ev_signal_init (&childev, childcb, SIGCHLD); |
3441 | ev_signal_init (&childev, childcb, SIGCHLD); |
1732 | ev_set_priority (&childev, EV_MAXPRI); |
3442 | ev_set_priority (&childev, EV_MAXPRI); |
1733 | ev_signal_start (EV_A_ &childev); |
3443 | ev_signal_start (EV_A_ &childev); |
1734 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
3444 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1735 | #endif |
3445 | #endif |
… | |
… | |
1740 | |
3450 | |
1741 | return ev_default_loop_ptr; |
3451 | return ev_default_loop_ptr; |
1742 | } |
3452 | } |
1743 | |
3453 | |
1744 | void |
3454 | void |
1745 | ev_default_destroy (void) |
3455 | ev_loop_fork (EV_P) EV_NOEXCEPT |
1746 | { |
3456 | { |
1747 | #if EV_MULTIPLICITY |
3457 | postfork = 1; |
1748 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1749 | #endif |
|
|
1750 | |
|
|
1751 | ev_default_loop_ptr = 0; |
|
|
1752 | |
|
|
1753 | #ifndef _WIN32 |
|
|
1754 | ev_ref (EV_A); /* child watcher */ |
|
|
1755 | ev_signal_stop (EV_A_ &childev); |
|
|
1756 | #endif |
|
|
1757 | |
|
|
1758 | loop_destroy (EV_A); |
|
|
1759 | } |
|
|
1760 | |
|
|
1761 | void |
|
|
1762 | ev_default_fork (void) |
|
|
1763 | { |
|
|
1764 | #if EV_MULTIPLICITY |
|
|
1765 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1766 | #endif |
|
|
1767 | |
|
|
1768 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1769 | } |
3458 | } |
1770 | |
3459 | |
1771 | /*****************************************************************************/ |
3460 | /*****************************************************************************/ |
1772 | |
3461 | |
1773 | void |
3462 | void |
1774 | ev_invoke (EV_P_ void *w, int revents) |
3463 | ev_invoke (EV_P_ void *w, int revents) |
1775 | { |
3464 | { |
1776 | EV_CB_INVOKE ((W)w, revents); |
3465 | EV_CB_INVOKE ((W)w, revents); |
1777 | } |
3466 | } |
1778 | |
3467 | |
1779 | inline_speed void |
3468 | unsigned int |
1780 | call_pending (EV_P) |
3469 | ev_pending_count (EV_P) EV_NOEXCEPT |
1781 | { |
3470 | { |
1782 | int pri; |
3471 | int pri; |
|
|
3472 | unsigned int count = 0; |
1783 | |
3473 | |
1784 | for (pri = NUMPRI; pri--; ) |
3474 | for (pri = NUMPRI; pri--; ) |
|
|
3475 | count += pendingcnt [pri]; |
|
|
3476 | |
|
|
3477 | return count; |
|
|
3478 | } |
|
|
3479 | |
|
|
3480 | ecb_noinline |
|
|
3481 | void |
|
|
3482 | ev_invoke_pending (EV_P) |
|
|
3483 | { |
|
|
3484 | pendingpri = NUMPRI; |
|
|
3485 | |
|
|
3486 | do |
|
|
3487 | { |
|
|
3488 | --pendingpri; |
|
|
3489 | |
|
|
3490 | /* pendingpri possibly gets modified in the inner loop */ |
1785 | while (pendingcnt [pri]) |
3491 | while (pendingcnt [pendingpri]) |
1786 | { |
3492 | { |
1787 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3493 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1788 | |
3494 | |
1789 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
1790 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
1791 | |
|
|
1792 | p->w->pending = 0; |
3495 | p->w->pending = 0; |
1793 | EV_CB_INVOKE (p->w, p->events); |
3496 | EV_CB_INVOKE (p->w, p->events); |
1794 | EV_FREQUENT_CHECK; |
3497 | EV_FREQUENT_CHECK; |
1795 | } |
3498 | } |
|
|
3499 | } |
|
|
3500 | while (pendingpri); |
1796 | } |
3501 | } |
1797 | |
3502 | |
1798 | #if EV_IDLE_ENABLE |
3503 | #if EV_IDLE_ENABLE |
1799 | /* make idle watchers pending. this handles the "call-idle */ |
3504 | /* make idle watchers pending. this handles the "call-idle */ |
1800 | /* only when higher priorities are idle" logic */ |
3505 | /* only when higher priorities are idle" logic */ |
1801 | inline_size void |
3506 | inline_size void |
1802 | idle_reify (EV_P) |
3507 | idle_reify (EV_P) |
1803 | { |
3508 | { |
1804 | if (expect_false (idleall)) |
3509 | if (ecb_expect_false (idleall)) |
1805 | { |
3510 | { |
1806 | int pri; |
3511 | int pri; |
1807 | |
3512 | |
1808 | for (pri = NUMPRI; pri--; ) |
3513 | for (pri = NUMPRI; pri--; ) |
1809 | { |
3514 | { |
… | |
… | |
1852 | EV_FREQUENT_CHECK; |
3557 | EV_FREQUENT_CHECK; |
1853 | feed_reverse (EV_A_ (W)w); |
3558 | feed_reverse (EV_A_ (W)w); |
1854 | } |
3559 | } |
1855 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
3560 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1856 | |
3561 | |
1857 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
3562 | feed_reverse_done (EV_A_ EV_TIMER); |
1858 | } |
3563 | } |
1859 | } |
3564 | } |
1860 | |
3565 | |
1861 | #if EV_PERIODIC_ENABLE |
3566 | #if EV_PERIODIC_ENABLE |
|
|
3567 | |
|
|
3568 | ecb_noinline |
|
|
3569 | static void |
|
|
3570 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3571 | { |
|
|
3572 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3573 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3574 | |
|
|
3575 | /* the above almost always errs on the low side */ |
|
|
3576 | while (at <= ev_rt_now) |
|
|
3577 | { |
|
|
3578 | ev_tstamp nat = at + w->interval; |
|
|
3579 | |
|
|
3580 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3581 | if (ecb_expect_false (nat == at)) |
|
|
3582 | { |
|
|
3583 | at = ev_rt_now; |
|
|
3584 | break; |
|
|
3585 | } |
|
|
3586 | |
|
|
3587 | at = nat; |
|
|
3588 | } |
|
|
3589 | |
|
|
3590 | ev_at (w) = at; |
|
|
3591 | } |
|
|
3592 | |
1862 | /* make periodics pending */ |
3593 | /* make periodics pending */ |
1863 | inline_size void |
3594 | inline_size void |
1864 | periodics_reify (EV_P) |
3595 | periodics_reify (EV_P) |
1865 | { |
3596 | { |
1866 | EV_FREQUENT_CHECK; |
3597 | EV_FREQUENT_CHECK; |
1867 | |
3598 | |
1868 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3599 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1869 | { |
3600 | { |
1870 | int feed_count = 0; |
|
|
1871 | |
|
|
1872 | do |
3601 | do |
1873 | { |
3602 | { |
1874 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3603 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1875 | |
3604 | |
1876 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3605 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
1885 | ANHE_at_cache (periodics [HEAP0]); |
3614 | ANHE_at_cache (periodics [HEAP0]); |
1886 | downheap (periodics, periodiccnt, HEAP0); |
3615 | downheap (periodics, periodiccnt, HEAP0); |
1887 | } |
3616 | } |
1888 | else if (w->interval) |
3617 | else if (w->interval) |
1889 | { |
3618 | { |
1890 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3619 | periodic_recalc (EV_A_ w); |
1891 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1892 | /* this might happen because of floating point inexactness */ |
|
|
1893 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1894 | { |
|
|
1895 | ev_at (w) += w->interval; |
|
|
1896 | |
|
|
1897 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1898 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1899 | /* has effectively asked to get triggered more often than possible */ |
|
|
1900 | if (ev_at (w) < ev_rt_now) |
|
|
1901 | ev_at (w) = ev_rt_now; |
|
|
1902 | } |
|
|
1903 | |
|
|
1904 | ANHE_at_cache (periodics [HEAP0]); |
3620 | ANHE_at_cache (periodics [HEAP0]); |
1905 | downheap (periodics, periodiccnt, HEAP0); |
3621 | downheap (periodics, periodiccnt, HEAP0); |
1906 | } |
3622 | } |
1907 | else |
3623 | else |
1908 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3624 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
1915 | feed_reverse_done (EV_A_ EV_PERIODIC); |
3631 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1916 | } |
3632 | } |
1917 | } |
3633 | } |
1918 | |
3634 | |
1919 | /* simply recalculate all periodics */ |
3635 | /* simply recalculate all periodics */ |
1920 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
3636 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1921 | static void noinline |
3637 | ecb_noinline ecb_cold |
|
|
3638 | static void |
1922 | periodics_reschedule (EV_P) |
3639 | periodics_reschedule (EV_P) |
1923 | { |
3640 | { |
1924 | int i; |
3641 | int i; |
1925 | |
3642 | |
1926 | /* adjust periodics after time jump */ |
3643 | /* adjust periodics after time jump */ |
… | |
… | |
1929 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3646 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1930 | |
3647 | |
1931 | if (w->reschedule_cb) |
3648 | if (w->reschedule_cb) |
1932 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3649 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1933 | else if (w->interval) |
3650 | else if (w->interval) |
1934 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3651 | periodic_recalc (EV_A_ w); |
1935 | |
3652 | |
1936 | ANHE_at_cache (periodics [i]); |
3653 | ANHE_at_cache (periodics [i]); |
1937 | } |
3654 | } |
1938 | |
3655 | |
1939 | reheap (periodics, periodiccnt); |
3656 | reheap (periodics, periodiccnt); |
1940 | } |
3657 | } |
1941 | #endif |
3658 | #endif |
1942 | |
3659 | |
1943 | /* adjust all timers by a given offset */ |
3660 | /* adjust all timers by a given offset */ |
1944 | static void noinline |
3661 | ecb_noinline ecb_cold |
|
|
3662 | static void |
1945 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3663 | timers_reschedule (EV_P_ ev_tstamp adjust) |
1946 | { |
3664 | { |
1947 | int i; |
3665 | int i; |
1948 | |
3666 | |
1949 | for (i = 0; i < timercnt; ++i) |
3667 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
1953 | ANHE_at_cache (*he); |
3671 | ANHE_at_cache (*he); |
1954 | } |
3672 | } |
1955 | } |
3673 | } |
1956 | |
3674 | |
1957 | /* fetch new monotonic and realtime times from the kernel */ |
3675 | /* fetch new monotonic and realtime times from the kernel */ |
1958 | /* also detetc if there was a timejump, and act accordingly */ |
3676 | /* also detect if there was a timejump, and act accordingly */ |
1959 | inline_speed void |
3677 | inline_speed void |
1960 | time_update (EV_P_ ev_tstamp max_block) |
3678 | time_update (EV_P_ ev_tstamp max_block) |
1961 | { |
3679 | { |
1962 | #if EV_USE_MONOTONIC |
3680 | #if EV_USE_MONOTONIC |
1963 | if (expect_true (have_monotonic)) |
3681 | if (ecb_expect_true (have_monotonic)) |
1964 | { |
3682 | { |
1965 | int i; |
3683 | int i; |
1966 | ev_tstamp odiff = rtmn_diff; |
3684 | ev_tstamp odiff = rtmn_diff; |
1967 | |
3685 | |
1968 | mn_now = get_clock (); |
3686 | mn_now = get_clock (); |
1969 | |
3687 | |
1970 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3688 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
1971 | /* interpolate in the meantime */ |
3689 | /* interpolate in the meantime */ |
1972 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
3690 | if (ecb_expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1973 | { |
3691 | { |
1974 | ev_rt_now = rtmn_diff + mn_now; |
3692 | ev_rt_now = rtmn_diff + mn_now; |
1975 | return; |
3693 | return; |
1976 | } |
3694 | } |
1977 | |
3695 | |
… | |
… | |
1986 | * doesn't hurt either as we only do this on time-jumps or |
3704 | * doesn't hurt either as we only do this on time-jumps or |
1987 | * in the unlikely event of having been preempted here. |
3705 | * in the unlikely event of having been preempted here. |
1988 | */ |
3706 | */ |
1989 | for (i = 4; --i; ) |
3707 | for (i = 4; --i; ) |
1990 | { |
3708 | { |
|
|
3709 | ev_tstamp diff; |
1991 | rtmn_diff = ev_rt_now - mn_now; |
3710 | rtmn_diff = ev_rt_now - mn_now; |
1992 | |
3711 | |
|
|
3712 | diff = odiff - rtmn_diff; |
|
|
3713 | |
1993 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3714 | if (ecb_expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1994 | return; /* all is well */ |
3715 | return; /* all is well */ |
1995 | |
3716 | |
1996 | ev_rt_now = ev_time (); |
3717 | ev_rt_now = ev_time (); |
1997 | mn_now = get_clock (); |
3718 | mn_now = get_clock (); |
1998 | now_floor = mn_now; |
3719 | now_floor = mn_now; |
… | |
… | |
2007 | else |
3728 | else |
2008 | #endif |
3729 | #endif |
2009 | { |
3730 | { |
2010 | ev_rt_now = ev_time (); |
3731 | ev_rt_now = ev_time (); |
2011 | |
3732 | |
2012 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3733 | if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2013 | { |
3734 | { |
2014 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
3735 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
2015 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
3736 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
2016 | #if EV_PERIODIC_ENABLE |
3737 | #if EV_PERIODIC_ENABLE |
2017 | periodics_reschedule (EV_A); |
3738 | periodics_reschedule (EV_A); |
… | |
… | |
2020 | |
3741 | |
2021 | mn_now = ev_rt_now; |
3742 | mn_now = ev_rt_now; |
2022 | } |
3743 | } |
2023 | } |
3744 | } |
2024 | |
3745 | |
2025 | static int loop_done; |
3746 | int |
2026 | |
|
|
2027 | void |
|
|
2028 | ev_loop (EV_P_ int flags) |
3747 | ev_run (EV_P_ int flags) |
2029 | { |
3748 | { |
|
|
3749 | #if EV_FEATURE_API |
|
|
3750 | ++loop_depth; |
|
|
3751 | #endif |
|
|
3752 | |
|
|
3753 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3754 | |
2030 | loop_done = EVUNLOOP_CANCEL; |
3755 | loop_done = EVBREAK_CANCEL; |
2031 | |
3756 | |
2032 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
3757 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2033 | |
3758 | |
2034 | do |
3759 | do |
2035 | { |
3760 | { |
2036 | #if EV_VERIFY >= 2 |
3761 | #if EV_VERIFY >= 2 |
2037 | ev_loop_verify (EV_A); |
3762 | ev_verify (EV_A); |
2038 | #endif |
3763 | #endif |
2039 | |
3764 | |
2040 | #ifndef _WIN32 |
3765 | #ifndef _WIN32 |
2041 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3766 | if (ecb_expect_false (curpid)) /* penalise the forking check even more */ |
2042 | if (expect_false (getpid () != curpid)) |
3767 | if (ecb_expect_false (getpid () != curpid)) |
2043 | { |
3768 | { |
2044 | curpid = getpid (); |
3769 | curpid = getpid (); |
2045 | postfork = 1; |
3770 | postfork = 1; |
2046 | } |
3771 | } |
2047 | #endif |
3772 | #endif |
2048 | |
3773 | |
2049 | #if EV_FORK_ENABLE |
3774 | #if EV_FORK_ENABLE |
2050 | /* we might have forked, so queue fork handlers */ |
3775 | /* we might have forked, so queue fork handlers */ |
2051 | if (expect_false (postfork)) |
3776 | if (ecb_expect_false (postfork)) |
2052 | if (forkcnt) |
3777 | if (forkcnt) |
2053 | { |
3778 | { |
2054 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3779 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2055 | call_pending (EV_A); |
3780 | EV_INVOKE_PENDING; |
2056 | } |
3781 | } |
2057 | #endif |
3782 | #endif |
2058 | |
3783 | |
|
|
3784 | #if EV_PREPARE_ENABLE |
2059 | /* queue prepare watchers (and execute them) */ |
3785 | /* queue prepare watchers (and execute them) */ |
2060 | if (expect_false (preparecnt)) |
3786 | if (ecb_expect_false (preparecnt)) |
2061 | { |
3787 | { |
2062 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3788 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2063 | call_pending (EV_A); |
3789 | EV_INVOKE_PENDING; |
2064 | } |
3790 | } |
|
|
3791 | #endif |
|
|
3792 | |
|
|
3793 | if (ecb_expect_false (loop_done)) |
|
|
3794 | break; |
2065 | |
3795 | |
2066 | /* we might have forked, so reify kernel state if necessary */ |
3796 | /* we might have forked, so reify kernel state if necessary */ |
2067 | if (expect_false (postfork)) |
3797 | if (ecb_expect_false (postfork)) |
2068 | loop_fork (EV_A); |
3798 | loop_fork (EV_A); |
2069 | |
3799 | |
2070 | /* update fd-related kernel structures */ |
3800 | /* update fd-related kernel structures */ |
2071 | fd_reify (EV_A); |
3801 | fd_reify (EV_A); |
2072 | |
3802 | |
2073 | /* calculate blocking time */ |
3803 | /* calculate blocking time */ |
2074 | { |
3804 | { |
2075 | ev_tstamp waittime = 0.; |
3805 | ev_tstamp waittime = 0.; |
2076 | ev_tstamp sleeptime = 0.; |
3806 | ev_tstamp sleeptime = 0.; |
2077 | |
3807 | |
|
|
3808 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3809 | ev_tstamp prev_mn_now = mn_now; |
|
|
3810 | |
|
|
3811 | /* update time to cancel out callback processing overhead */ |
|
|
3812 | time_update (EV_A_ 1e100); |
|
|
3813 | |
|
|
3814 | /* from now on, we want a pipe-wake-up */ |
|
|
3815 | pipe_write_wanted = 1; |
|
|
3816 | |
|
|
3817 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3818 | |
2078 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3819 | if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2079 | { |
3820 | { |
2080 | /* update time to cancel out callback processing overhead */ |
|
|
2081 | time_update (EV_A_ 1e100); |
|
|
2082 | |
|
|
2083 | waittime = MAX_BLOCKTIME; |
3821 | waittime = MAX_BLOCKTIME; |
2084 | |
3822 | |
2085 | if (timercnt) |
3823 | if (timercnt) |
2086 | { |
3824 | { |
2087 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3825 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2088 | if (waittime > to) waittime = to; |
3826 | if (waittime > to) waittime = to; |
2089 | } |
3827 | } |
2090 | |
3828 | |
2091 | #if EV_PERIODIC_ENABLE |
3829 | #if EV_PERIODIC_ENABLE |
2092 | if (periodiccnt) |
3830 | if (periodiccnt) |
2093 | { |
3831 | { |
2094 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3832 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2095 | if (waittime > to) waittime = to; |
3833 | if (waittime > to) waittime = to; |
2096 | } |
3834 | } |
2097 | #endif |
3835 | #endif |
2098 | |
3836 | |
|
|
3837 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2099 | if (expect_false (waittime < timeout_blocktime)) |
3838 | if (ecb_expect_false (waittime < timeout_blocktime)) |
2100 | waittime = timeout_blocktime; |
3839 | waittime = timeout_blocktime; |
2101 | |
3840 | |
2102 | sleeptime = waittime - backend_fudge; |
3841 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3842 | /* to pass a minimum nonzero value to the backend */ |
|
|
3843 | if (ecb_expect_false (waittime < backend_mintime)) |
|
|
3844 | waittime = backend_mintime; |
2103 | |
3845 | |
|
|
3846 | /* extra check because io_blocktime is commonly 0 */ |
2104 | if (expect_true (sleeptime > io_blocktime)) |
3847 | if (ecb_expect_false (io_blocktime)) |
2105 | sleeptime = io_blocktime; |
|
|
2106 | |
|
|
2107 | if (sleeptime) |
|
|
2108 | { |
3848 | { |
|
|
3849 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3850 | |
|
|
3851 | if (sleeptime > waittime - backend_mintime) |
|
|
3852 | sleeptime = waittime - backend_mintime; |
|
|
3853 | |
|
|
3854 | if (ecb_expect_true (sleeptime > 0.)) |
|
|
3855 | { |
2109 | ev_sleep (sleeptime); |
3856 | ev_sleep (sleeptime); |
2110 | waittime -= sleeptime; |
3857 | waittime -= sleeptime; |
|
|
3858 | } |
2111 | } |
3859 | } |
2112 | } |
3860 | } |
2113 | |
3861 | |
|
|
3862 | #if EV_FEATURE_API |
2114 | ++loop_count; |
3863 | ++loop_count; |
|
|
3864 | #endif |
|
|
3865 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2115 | backend_poll (EV_A_ waittime); |
3866 | backend_poll (EV_A_ waittime); |
|
|
3867 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3868 | |
|
|
3869 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3870 | |
|
|
3871 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3872 | if (pipe_write_skipped) |
|
|
3873 | { |
|
|
3874 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3875 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3876 | } |
2116 | |
3877 | |
2117 | /* update ev_rt_now, do magic */ |
3878 | /* update ev_rt_now, do magic */ |
2118 | time_update (EV_A_ waittime + sleeptime); |
3879 | time_update (EV_A_ waittime + sleeptime); |
2119 | } |
3880 | } |
2120 | |
3881 | |
… | |
… | |
2127 | #if EV_IDLE_ENABLE |
3888 | #if EV_IDLE_ENABLE |
2128 | /* queue idle watchers unless other events are pending */ |
3889 | /* queue idle watchers unless other events are pending */ |
2129 | idle_reify (EV_A); |
3890 | idle_reify (EV_A); |
2130 | #endif |
3891 | #endif |
2131 | |
3892 | |
|
|
3893 | #if EV_CHECK_ENABLE |
2132 | /* queue check watchers, to be executed first */ |
3894 | /* queue check watchers, to be executed first */ |
2133 | if (expect_false (checkcnt)) |
3895 | if (ecb_expect_false (checkcnt)) |
2134 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3896 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3897 | #endif |
2135 | |
3898 | |
2136 | call_pending (EV_A); |
3899 | EV_INVOKE_PENDING; |
2137 | } |
3900 | } |
2138 | while (expect_true ( |
3901 | while (ecb_expect_true ( |
2139 | activecnt |
3902 | activecnt |
2140 | && !loop_done |
3903 | && !loop_done |
2141 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3904 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2142 | )); |
3905 | )); |
2143 | |
3906 | |
2144 | if (loop_done == EVUNLOOP_ONE) |
3907 | if (loop_done == EVBREAK_ONE) |
2145 | loop_done = EVUNLOOP_CANCEL; |
3908 | loop_done = EVBREAK_CANCEL; |
2146 | } |
|
|
2147 | |
3909 | |
|
|
3910 | #if EV_FEATURE_API |
|
|
3911 | --loop_depth; |
|
|
3912 | #endif |
|
|
3913 | |
|
|
3914 | return activecnt; |
|
|
3915 | } |
|
|
3916 | |
2148 | void |
3917 | void |
2149 | ev_unloop (EV_P_ int how) |
3918 | ev_break (EV_P_ int how) EV_NOEXCEPT |
2150 | { |
3919 | { |
2151 | loop_done = how; |
3920 | loop_done = how; |
2152 | } |
3921 | } |
2153 | |
3922 | |
2154 | void |
3923 | void |
2155 | ev_ref (EV_P) |
3924 | ev_ref (EV_P) EV_NOEXCEPT |
2156 | { |
3925 | { |
2157 | ++activecnt; |
3926 | ++activecnt; |
2158 | } |
3927 | } |
2159 | |
3928 | |
2160 | void |
3929 | void |
2161 | ev_unref (EV_P) |
3930 | ev_unref (EV_P) EV_NOEXCEPT |
2162 | { |
3931 | { |
2163 | --activecnt; |
3932 | --activecnt; |
2164 | } |
3933 | } |
2165 | |
3934 | |
2166 | void |
3935 | void |
2167 | ev_now_update (EV_P) |
3936 | ev_now_update (EV_P) EV_NOEXCEPT |
2168 | { |
3937 | { |
2169 | time_update (EV_A_ 1e100); |
3938 | time_update (EV_A_ 1e100); |
2170 | } |
3939 | } |
2171 | |
3940 | |
2172 | void |
3941 | void |
2173 | ev_suspend (EV_P) |
3942 | ev_suspend (EV_P) EV_NOEXCEPT |
2174 | { |
3943 | { |
2175 | ev_now_update (EV_A); |
3944 | ev_now_update (EV_A); |
2176 | } |
3945 | } |
2177 | |
3946 | |
2178 | void |
3947 | void |
2179 | ev_resume (EV_P) |
3948 | ev_resume (EV_P) EV_NOEXCEPT |
2180 | { |
3949 | { |
2181 | ev_tstamp mn_prev = mn_now; |
3950 | ev_tstamp mn_prev = mn_now; |
2182 | |
3951 | |
2183 | ev_now_update (EV_A); |
3952 | ev_now_update (EV_A); |
2184 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3953 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2201 | inline_size void |
3970 | inline_size void |
2202 | wlist_del (WL *head, WL elem) |
3971 | wlist_del (WL *head, WL elem) |
2203 | { |
3972 | { |
2204 | while (*head) |
3973 | while (*head) |
2205 | { |
3974 | { |
2206 | if (*head == elem) |
3975 | if (ecb_expect_true (*head == elem)) |
2207 | { |
3976 | { |
2208 | *head = elem->next; |
3977 | *head = elem->next; |
2209 | return; |
3978 | break; |
2210 | } |
3979 | } |
2211 | |
3980 | |
2212 | head = &(*head)->next; |
3981 | head = &(*head)->next; |
2213 | } |
3982 | } |
2214 | } |
3983 | } |
… | |
… | |
2223 | w->pending = 0; |
3992 | w->pending = 0; |
2224 | } |
3993 | } |
2225 | } |
3994 | } |
2226 | |
3995 | |
2227 | int |
3996 | int |
2228 | ev_clear_pending (EV_P_ void *w) |
3997 | ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT |
2229 | { |
3998 | { |
2230 | W w_ = (W)w; |
3999 | W w_ = (W)w; |
2231 | int pending = w_->pending; |
4000 | int pending = w_->pending; |
2232 | |
4001 | |
2233 | if (expect_true (pending)) |
4002 | if (ecb_expect_true (pending)) |
2234 | { |
4003 | { |
2235 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
4004 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2236 | p->w = (W)&pending_w; |
4005 | p->w = (W)&pending_w; |
2237 | w_->pending = 0; |
4006 | w_->pending = 0; |
2238 | return p->events; |
4007 | return p->events; |
… | |
… | |
2242 | } |
4011 | } |
2243 | |
4012 | |
2244 | inline_size void |
4013 | inline_size void |
2245 | pri_adjust (EV_P_ W w) |
4014 | pri_adjust (EV_P_ W w) |
2246 | { |
4015 | { |
2247 | int pri = w->priority; |
4016 | int pri = ev_priority (w); |
2248 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
4017 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2249 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
4018 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2250 | w->priority = pri; |
4019 | ev_set_priority (w, pri); |
2251 | } |
4020 | } |
2252 | |
4021 | |
2253 | inline_speed void |
4022 | inline_speed void |
2254 | ev_start (EV_P_ W w, int active) |
4023 | ev_start (EV_P_ W w, int active) |
2255 | { |
4024 | { |
… | |
… | |
2265 | w->active = 0; |
4034 | w->active = 0; |
2266 | } |
4035 | } |
2267 | |
4036 | |
2268 | /*****************************************************************************/ |
4037 | /*****************************************************************************/ |
2269 | |
4038 | |
2270 | void noinline |
4039 | ecb_noinline |
|
|
4040 | void |
2271 | ev_io_start (EV_P_ ev_io *w) |
4041 | ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT |
2272 | { |
4042 | { |
2273 | int fd = w->fd; |
4043 | int fd = w->fd; |
2274 | |
4044 | |
2275 | if (expect_false (ev_is_active (w))) |
4045 | if (ecb_expect_false (ev_is_active (w))) |
2276 | return; |
4046 | return; |
2277 | |
4047 | |
2278 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
4048 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2279 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
4049 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2280 | |
4050 | |
|
|
4051 | #if EV_VERIFY >= 2 |
|
|
4052 | assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd))); |
|
|
4053 | #endif |
2281 | EV_FREQUENT_CHECK; |
4054 | EV_FREQUENT_CHECK; |
2282 | |
4055 | |
2283 | ev_start (EV_A_ (W)w, 1); |
4056 | ev_start (EV_A_ (W)w, 1); |
2284 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
4057 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); |
2285 | wlist_add (&anfds[fd].head, (WL)w); |
4058 | wlist_add (&anfds[fd].head, (WL)w); |
2286 | |
4059 | |
|
|
4060 | /* common bug, apparently */ |
|
|
4061 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
4062 | |
2287 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
4063 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2288 | w->events &= ~EV__IOFDSET; |
4064 | w->events &= ~EV__IOFDSET; |
2289 | |
4065 | |
2290 | EV_FREQUENT_CHECK; |
4066 | EV_FREQUENT_CHECK; |
2291 | } |
4067 | } |
2292 | |
4068 | |
2293 | void noinline |
4069 | ecb_noinline |
|
|
4070 | void |
2294 | ev_io_stop (EV_P_ ev_io *w) |
4071 | ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT |
2295 | { |
4072 | { |
2296 | clear_pending (EV_A_ (W)w); |
4073 | clear_pending (EV_A_ (W)w); |
2297 | if (expect_false (!ev_is_active (w))) |
4074 | if (ecb_expect_false (!ev_is_active (w))) |
2298 | return; |
4075 | return; |
2299 | |
4076 | |
2300 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
4077 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2301 | |
4078 | |
|
|
4079 | #if EV_VERIFY >= 2 |
|
|
4080 | assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd))); |
|
|
4081 | #endif |
2302 | EV_FREQUENT_CHECK; |
4082 | EV_FREQUENT_CHECK; |
2303 | |
4083 | |
2304 | wlist_del (&anfds[w->fd].head, (WL)w); |
4084 | wlist_del (&anfds[w->fd].head, (WL)w); |
2305 | ev_stop (EV_A_ (W)w); |
4085 | ev_stop (EV_A_ (W)w); |
2306 | |
4086 | |
2307 | fd_change (EV_A_ w->fd, 1); |
4087 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2308 | |
4088 | |
2309 | EV_FREQUENT_CHECK; |
4089 | EV_FREQUENT_CHECK; |
2310 | } |
4090 | } |
2311 | |
4091 | |
2312 | void noinline |
4092 | ecb_noinline |
|
|
4093 | void |
2313 | ev_timer_start (EV_P_ ev_timer *w) |
4094 | ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT |
2314 | { |
4095 | { |
2315 | if (expect_false (ev_is_active (w))) |
4096 | if (ecb_expect_false (ev_is_active (w))) |
2316 | return; |
4097 | return; |
2317 | |
4098 | |
2318 | ev_at (w) += mn_now; |
4099 | ev_at (w) += mn_now; |
2319 | |
4100 | |
2320 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
4101 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2321 | |
4102 | |
2322 | EV_FREQUENT_CHECK; |
4103 | EV_FREQUENT_CHECK; |
2323 | |
4104 | |
2324 | ++timercnt; |
4105 | ++timercnt; |
2325 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
4106 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
2326 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
4107 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit); |
2327 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
4108 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
2328 | ANHE_at_cache (timers [ev_active (w)]); |
4109 | ANHE_at_cache (timers [ev_active (w)]); |
2329 | upheap (timers, ev_active (w)); |
4110 | upheap (timers, ev_active (w)); |
2330 | |
4111 | |
2331 | EV_FREQUENT_CHECK; |
4112 | EV_FREQUENT_CHECK; |
2332 | |
4113 | |
2333 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
4114 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2334 | } |
4115 | } |
2335 | |
4116 | |
2336 | void noinline |
4117 | ecb_noinline |
|
|
4118 | void |
2337 | ev_timer_stop (EV_P_ ev_timer *w) |
4119 | ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT |
2338 | { |
4120 | { |
2339 | clear_pending (EV_A_ (W)w); |
4121 | clear_pending (EV_A_ (W)w); |
2340 | if (expect_false (!ev_is_active (w))) |
4122 | if (ecb_expect_false (!ev_is_active (w))) |
2341 | return; |
4123 | return; |
2342 | |
4124 | |
2343 | EV_FREQUENT_CHECK; |
4125 | EV_FREQUENT_CHECK; |
2344 | |
4126 | |
2345 | { |
4127 | { |
… | |
… | |
2347 | |
4129 | |
2348 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
4130 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
2349 | |
4131 | |
2350 | --timercnt; |
4132 | --timercnt; |
2351 | |
4133 | |
2352 | if (expect_true (active < timercnt + HEAP0)) |
4134 | if (ecb_expect_true (active < timercnt + HEAP0)) |
2353 | { |
4135 | { |
2354 | timers [active] = timers [timercnt + HEAP0]; |
4136 | timers [active] = timers [timercnt + HEAP0]; |
2355 | adjustheap (timers, timercnt, active); |
4137 | adjustheap (timers, timercnt, active); |
2356 | } |
4138 | } |
2357 | } |
4139 | } |
2358 | |
4140 | |
2359 | EV_FREQUENT_CHECK; |
|
|
2360 | |
|
|
2361 | ev_at (w) -= mn_now; |
4141 | ev_at (w) -= mn_now; |
2362 | |
4142 | |
2363 | ev_stop (EV_A_ (W)w); |
4143 | ev_stop (EV_A_ (W)w); |
2364 | } |
|
|
2365 | |
4144 | |
2366 | void noinline |
4145 | EV_FREQUENT_CHECK; |
|
|
4146 | } |
|
|
4147 | |
|
|
4148 | ecb_noinline |
|
|
4149 | void |
2367 | ev_timer_again (EV_P_ ev_timer *w) |
4150 | ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT |
2368 | { |
4151 | { |
2369 | EV_FREQUENT_CHECK; |
4152 | EV_FREQUENT_CHECK; |
|
|
4153 | |
|
|
4154 | clear_pending (EV_A_ (W)w); |
2370 | |
4155 | |
2371 | if (ev_is_active (w)) |
4156 | if (ev_is_active (w)) |
2372 | { |
4157 | { |
2373 | if (w->repeat) |
4158 | if (w->repeat) |
2374 | { |
4159 | { |
… | |
… | |
2386 | } |
4171 | } |
2387 | |
4172 | |
2388 | EV_FREQUENT_CHECK; |
4173 | EV_FREQUENT_CHECK; |
2389 | } |
4174 | } |
2390 | |
4175 | |
|
|
4176 | ev_tstamp |
|
|
4177 | ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT |
|
|
4178 | { |
|
|
4179 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
4180 | } |
|
|
4181 | |
2391 | #if EV_PERIODIC_ENABLE |
4182 | #if EV_PERIODIC_ENABLE |
2392 | void noinline |
4183 | ecb_noinline |
|
|
4184 | void |
2393 | ev_periodic_start (EV_P_ ev_periodic *w) |
4185 | ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2394 | { |
4186 | { |
2395 | if (expect_false (ev_is_active (w))) |
4187 | if (ecb_expect_false (ev_is_active (w))) |
2396 | return; |
4188 | return; |
2397 | |
4189 | |
2398 | if (w->reschedule_cb) |
4190 | if (w->reschedule_cb) |
2399 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
4191 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2400 | else if (w->interval) |
4192 | else if (w->interval) |
2401 | { |
4193 | { |
2402 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
4194 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2403 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
4195 | periodic_recalc (EV_A_ w); |
2404 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2405 | } |
4196 | } |
2406 | else |
4197 | else |
2407 | ev_at (w) = w->offset; |
4198 | ev_at (w) = w->offset; |
2408 | |
4199 | |
2409 | EV_FREQUENT_CHECK; |
4200 | EV_FREQUENT_CHECK; |
2410 | |
4201 | |
2411 | ++periodiccnt; |
4202 | ++periodiccnt; |
2412 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
4203 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
2413 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
4204 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit); |
2414 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
4205 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
2415 | ANHE_at_cache (periodics [ev_active (w)]); |
4206 | ANHE_at_cache (periodics [ev_active (w)]); |
2416 | upheap (periodics, ev_active (w)); |
4207 | upheap (periodics, ev_active (w)); |
2417 | |
4208 | |
2418 | EV_FREQUENT_CHECK; |
4209 | EV_FREQUENT_CHECK; |
2419 | |
4210 | |
2420 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
4211 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2421 | } |
4212 | } |
2422 | |
4213 | |
2423 | void noinline |
4214 | ecb_noinline |
|
|
4215 | void |
2424 | ev_periodic_stop (EV_P_ ev_periodic *w) |
4216 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2425 | { |
4217 | { |
2426 | clear_pending (EV_A_ (W)w); |
4218 | clear_pending (EV_A_ (W)w); |
2427 | if (expect_false (!ev_is_active (w))) |
4219 | if (ecb_expect_false (!ev_is_active (w))) |
2428 | return; |
4220 | return; |
2429 | |
4221 | |
2430 | EV_FREQUENT_CHECK; |
4222 | EV_FREQUENT_CHECK; |
2431 | |
4223 | |
2432 | { |
4224 | { |
… | |
… | |
2434 | |
4226 | |
2435 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
4227 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
2436 | |
4228 | |
2437 | --periodiccnt; |
4229 | --periodiccnt; |
2438 | |
4230 | |
2439 | if (expect_true (active < periodiccnt + HEAP0)) |
4231 | if (ecb_expect_true (active < periodiccnt + HEAP0)) |
2440 | { |
4232 | { |
2441 | periodics [active] = periodics [periodiccnt + HEAP0]; |
4233 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2442 | adjustheap (periodics, periodiccnt, active); |
4234 | adjustheap (periodics, periodiccnt, active); |
2443 | } |
4235 | } |
2444 | } |
4236 | } |
2445 | |
4237 | |
2446 | EV_FREQUENT_CHECK; |
|
|
2447 | |
|
|
2448 | ev_stop (EV_A_ (W)w); |
4238 | ev_stop (EV_A_ (W)w); |
2449 | } |
|
|
2450 | |
4239 | |
2451 | void noinline |
4240 | EV_FREQUENT_CHECK; |
|
|
4241 | } |
|
|
4242 | |
|
|
4243 | ecb_noinline |
|
|
4244 | void |
2452 | ev_periodic_again (EV_P_ ev_periodic *w) |
4245 | ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT |
2453 | { |
4246 | { |
2454 | /* TODO: use adjustheap and recalculation */ |
4247 | /* TODO: use adjustheap and recalculation */ |
2455 | ev_periodic_stop (EV_A_ w); |
4248 | ev_periodic_stop (EV_A_ w); |
2456 | ev_periodic_start (EV_A_ w); |
4249 | ev_periodic_start (EV_A_ w); |
2457 | } |
4250 | } |
… | |
… | |
2459 | |
4252 | |
2460 | #ifndef SA_RESTART |
4253 | #ifndef SA_RESTART |
2461 | # define SA_RESTART 0 |
4254 | # define SA_RESTART 0 |
2462 | #endif |
4255 | #endif |
2463 | |
4256 | |
2464 | void noinline |
4257 | #if EV_SIGNAL_ENABLE |
|
|
4258 | |
|
|
4259 | ecb_noinline |
|
|
4260 | void |
2465 | ev_signal_start (EV_P_ ev_signal *w) |
4261 | ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT |
2466 | { |
4262 | { |
|
|
4263 | if (ecb_expect_false (ev_is_active (w))) |
|
|
4264 | return; |
|
|
4265 | |
|
|
4266 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
4267 | |
2467 | #if EV_MULTIPLICITY |
4268 | #if EV_MULTIPLICITY |
2468 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4269 | assert (("libev: a signal must not be attached to two different loops", |
2469 | #endif |
4270 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2470 | if (expect_false (ev_is_active (w))) |
|
|
2471 | return; |
|
|
2472 | |
4271 | |
2473 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
4272 | signals [w->signum - 1].loop = EV_A; |
|
|
4273 | ECB_MEMORY_FENCE_RELEASE; |
|
|
4274 | #endif |
2474 | |
4275 | |
2475 | evpipe_init (EV_A); |
|
|
2476 | |
|
|
2477 | EV_FREQUENT_CHECK; |
4276 | EV_FREQUENT_CHECK; |
2478 | |
4277 | |
|
|
4278 | #if EV_USE_SIGNALFD |
|
|
4279 | if (sigfd == -2) |
2479 | { |
4280 | { |
2480 | #ifndef _WIN32 |
4281 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2481 | sigset_t full, prev; |
4282 | if (sigfd < 0 && errno == EINVAL) |
2482 | sigfillset (&full); |
4283 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2483 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2484 | #endif |
|
|
2485 | |
4284 | |
2486 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
4285 | if (sigfd >= 0) |
|
|
4286 | { |
|
|
4287 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2487 | |
4288 | |
2488 | #ifndef _WIN32 |
4289 | sigemptyset (&sigfd_set); |
2489 | sigprocmask (SIG_SETMASK, &prev, 0); |
4290 | |
2490 | #endif |
4291 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
4292 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
4293 | ev_io_start (EV_A_ &sigfd_w); |
|
|
4294 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
4295 | } |
2491 | } |
4296 | } |
|
|
4297 | |
|
|
4298 | if (sigfd >= 0) |
|
|
4299 | { |
|
|
4300 | /* TODO: check .head */ |
|
|
4301 | sigaddset (&sigfd_set, w->signum); |
|
|
4302 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
4303 | |
|
|
4304 | signalfd (sigfd, &sigfd_set, 0); |
|
|
4305 | } |
|
|
4306 | #endif |
2492 | |
4307 | |
2493 | ev_start (EV_A_ (W)w, 1); |
4308 | ev_start (EV_A_ (W)w, 1); |
2494 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
4309 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2495 | |
4310 | |
2496 | if (!((WL)w)->next) |
4311 | if (!((WL)w)->next) |
|
|
4312 | # if EV_USE_SIGNALFD |
|
|
4313 | if (sigfd < 0) /*TODO*/ |
|
|
4314 | # endif |
2497 | { |
4315 | { |
2498 | #if _WIN32 |
4316 | # ifdef _WIN32 |
|
|
4317 | evpipe_init (EV_A); |
|
|
4318 | |
2499 | signal (w->signum, ev_sighandler); |
4319 | signal (w->signum, ev_sighandler); |
2500 | #else |
4320 | # else |
2501 | struct sigaction sa; |
4321 | struct sigaction sa; |
|
|
4322 | |
|
|
4323 | evpipe_init (EV_A); |
|
|
4324 | |
2502 | sa.sa_handler = ev_sighandler; |
4325 | sa.sa_handler = ev_sighandler; |
2503 | sigfillset (&sa.sa_mask); |
4326 | sigfillset (&sa.sa_mask); |
2504 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4327 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2505 | sigaction (w->signum, &sa, 0); |
4328 | sigaction (w->signum, &sa, 0); |
|
|
4329 | |
|
|
4330 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4331 | { |
|
|
4332 | sigemptyset (&sa.sa_mask); |
|
|
4333 | sigaddset (&sa.sa_mask, w->signum); |
|
|
4334 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4335 | } |
2506 | #endif |
4336 | #endif |
2507 | } |
4337 | } |
2508 | |
4338 | |
2509 | EV_FREQUENT_CHECK; |
4339 | EV_FREQUENT_CHECK; |
2510 | } |
4340 | } |
2511 | |
4341 | |
2512 | void noinline |
4342 | ecb_noinline |
|
|
4343 | void |
2513 | ev_signal_stop (EV_P_ ev_signal *w) |
4344 | ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT |
2514 | { |
4345 | { |
2515 | clear_pending (EV_A_ (W)w); |
4346 | clear_pending (EV_A_ (W)w); |
2516 | if (expect_false (!ev_is_active (w))) |
4347 | if (ecb_expect_false (!ev_is_active (w))) |
2517 | return; |
4348 | return; |
2518 | |
4349 | |
2519 | EV_FREQUENT_CHECK; |
4350 | EV_FREQUENT_CHECK; |
2520 | |
4351 | |
2521 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
4352 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2522 | ev_stop (EV_A_ (W)w); |
4353 | ev_stop (EV_A_ (W)w); |
2523 | |
4354 | |
2524 | if (!signals [w->signum - 1].head) |
4355 | if (!signals [w->signum - 1].head) |
|
|
4356 | { |
|
|
4357 | #if EV_MULTIPLICITY |
|
|
4358 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
4359 | #endif |
|
|
4360 | #if EV_USE_SIGNALFD |
|
|
4361 | if (sigfd >= 0) |
|
|
4362 | { |
|
|
4363 | sigset_t ss; |
|
|
4364 | |
|
|
4365 | sigemptyset (&ss); |
|
|
4366 | sigaddset (&ss, w->signum); |
|
|
4367 | sigdelset (&sigfd_set, w->signum); |
|
|
4368 | |
|
|
4369 | signalfd (sigfd, &sigfd_set, 0); |
|
|
4370 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
4371 | } |
|
|
4372 | else |
|
|
4373 | #endif |
2525 | signal (w->signum, SIG_DFL); |
4374 | signal (w->signum, SIG_DFL); |
|
|
4375 | } |
2526 | |
4376 | |
2527 | EV_FREQUENT_CHECK; |
4377 | EV_FREQUENT_CHECK; |
2528 | } |
4378 | } |
2529 | |
4379 | |
|
|
4380 | #endif |
|
|
4381 | |
|
|
4382 | #if EV_CHILD_ENABLE |
|
|
4383 | |
2530 | void |
4384 | void |
2531 | ev_child_start (EV_P_ ev_child *w) |
4385 | ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT |
2532 | { |
4386 | { |
2533 | #if EV_MULTIPLICITY |
4387 | #if EV_MULTIPLICITY |
2534 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4388 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2535 | #endif |
4389 | #endif |
2536 | if (expect_false (ev_is_active (w))) |
4390 | if (ecb_expect_false (ev_is_active (w))) |
2537 | return; |
4391 | return; |
2538 | |
4392 | |
2539 | EV_FREQUENT_CHECK; |
4393 | EV_FREQUENT_CHECK; |
2540 | |
4394 | |
2541 | ev_start (EV_A_ (W)w, 1); |
4395 | ev_start (EV_A_ (W)w, 1); |
2542 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4396 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2543 | |
4397 | |
2544 | EV_FREQUENT_CHECK; |
4398 | EV_FREQUENT_CHECK; |
2545 | } |
4399 | } |
2546 | |
4400 | |
2547 | void |
4401 | void |
2548 | ev_child_stop (EV_P_ ev_child *w) |
4402 | ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT |
2549 | { |
4403 | { |
2550 | clear_pending (EV_A_ (W)w); |
4404 | clear_pending (EV_A_ (W)w); |
2551 | if (expect_false (!ev_is_active (w))) |
4405 | if (ecb_expect_false (!ev_is_active (w))) |
2552 | return; |
4406 | return; |
2553 | |
4407 | |
2554 | EV_FREQUENT_CHECK; |
4408 | EV_FREQUENT_CHECK; |
2555 | |
4409 | |
2556 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
4410 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2557 | ev_stop (EV_A_ (W)w); |
4411 | ev_stop (EV_A_ (W)w); |
2558 | |
4412 | |
2559 | EV_FREQUENT_CHECK; |
4413 | EV_FREQUENT_CHECK; |
2560 | } |
4414 | } |
|
|
4415 | |
|
|
4416 | #endif |
2561 | |
4417 | |
2562 | #if EV_STAT_ENABLE |
4418 | #if EV_STAT_ENABLE |
2563 | |
4419 | |
2564 | # ifdef _WIN32 |
4420 | # ifdef _WIN32 |
2565 | # undef lstat |
4421 | # undef lstat |
… | |
… | |
2568 | |
4424 | |
2569 | #define DEF_STAT_INTERVAL 5.0074891 |
4425 | #define DEF_STAT_INTERVAL 5.0074891 |
2570 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
4426 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
2571 | #define MIN_STAT_INTERVAL 0.1074891 |
4427 | #define MIN_STAT_INTERVAL 0.1074891 |
2572 | |
4428 | |
2573 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
4429 | ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2574 | |
4430 | |
2575 | #if EV_USE_INOTIFY |
4431 | #if EV_USE_INOTIFY |
2576 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2577 | |
4432 | |
2578 | static void noinline |
4433 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
4434 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
4435 | |
|
|
4436 | ecb_noinline |
|
|
4437 | static void |
2579 | infy_add (EV_P_ ev_stat *w) |
4438 | infy_add (EV_P_ ev_stat *w) |
2580 | { |
4439 | { |
2581 | 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); |
4440 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4441 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4442 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4443 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2582 | |
4444 | |
2583 | if (w->wd < 0) |
4445 | if (w->wd >= 0) |
|
|
4446 | { |
|
|
4447 | struct statfs sfs; |
|
|
4448 | |
|
|
4449 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
4450 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
4451 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
4452 | |
|
|
4453 | if (!fs_2625) |
|
|
4454 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4455 | else if (!statfs (w->path, &sfs) |
|
|
4456 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4457 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4458 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
4459 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4460 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4461 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4462 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
4463 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4464 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
4465 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
4466 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
4467 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
4468 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
4469 | else |
|
|
4470 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2584 | { |
4471 | } |
|
|
4472 | else |
|
|
4473 | { |
|
|
4474 | /* can't use inotify, continue to stat */ |
2585 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4475 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2586 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2587 | |
4476 | |
2588 | /* monitor some parent directory for speedup hints */ |
4477 | /* if path is not there, monitor some parent directory for speedup hints */ |
2589 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
4478 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2590 | /* but an efficiency issue only */ |
4479 | /* but an efficiency issue only */ |
2591 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
4480 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2592 | { |
4481 | { |
2593 | char path [4096]; |
4482 | char path [4096]; |
… | |
… | |
2603 | if (!pend || pend == path) |
4492 | if (!pend || pend == path) |
2604 | break; |
4493 | break; |
2605 | |
4494 | |
2606 | *pend = 0; |
4495 | *pend = 0; |
2607 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4496 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2608 | } |
4497 | } |
2609 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4498 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2610 | } |
4499 | } |
2611 | } |
4500 | } |
2612 | |
4501 | |
2613 | if (w->wd >= 0) |
4502 | if (w->wd >= 0) |
2614 | { |
|
|
2615 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4503 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2616 | |
4504 | |
2617 | /* now local changes will be tracked by inotify, but remote changes won't */ |
4505 | /* now re-arm timer, if required */ |
2618 | /* unless the filesystem it known to be local, we therefore still poll */ |
4506 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2619 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2620 | struct statfs sfs; |
|
|
2621 | |
|
|
2622 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2623 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2624 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2625 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2626 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2627 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2628 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2629 | return; |
|
|
2630 | |
|
|
2631 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2632 | ev_timer_again (EV_A_ &w->timer); |
4507 | ev_timer_again (EV_A_ &w->timer); |
2633 | } |
4508 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2634 | } |
4509 | } |
2635 | |
4510 | |
2636 | static void noinline |
4511 | ecb_noinline |
|
|
4512 | static void |
2637 | infy_del (EV_P_ ev_stat *w) |
4513 | infy_del (EV_P_ ev_stat *w) |
2638 | { |
4514 | { |
2639 | int slot; |
4515 | int slot; |
2640 | int wd = w->wd; |
4516 | int wd = w->wd; |
2641 | |
4517 | |
2642 | if (wd < 0) |
4518 | if (wd < 0) |
2643 | return; |
4519 | return; |
2644 | |
4520 | |
2645 | w->wd = -2; |
4521 | w->wd = -2; |
2646 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4522 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2647 | wlist_del (&fs_hash [slot].head, (WL)w); |
4523 | wlist_del (&fs_hash [slot].head, (WL)w); |
2648 | |
4524 | |
2649 | /* remove this watcher, if others are watching it, they will rearm */ |
4525 | /* remove this watcher, if others are watching it, they will rearm */ |
2650 | inotify_rm_watch (fs_fd, wd); |
4526 | inotify_rm_watch (fs_fd, wd); |
2651 | } |
4527 | } |
2652 | |
4528 | |
2653 | static void noinline |
4529 | ecb_noinline |
|
|
4530 | static void |
2654 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4531 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2655 | { |
4532 | { |
2656 | if (slot < 0) |
4533 | if (slot < 0) |
2657 | /* overflow, need to check for all hash slots */ |
4534 | /* overflow, need to check for all hash slots */ |
2658 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4535 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2659 | infy_wd (EV_A_ slot, wd, ev); |
4536 | infy_wd (EV_A_ slot, wd, ev); |
2660 | else |
4537 | else |
2661 | { |
4538 | { |
2662 | WL w_; |
4539 | WL w_; |
2663 | |
4540 | |
2664 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4541 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2665 | { |
4542 | { |
2666 | ev_stat *w = (ev_stat *)w_; |
4543 | ev_stat *w = (ev_stat *)w_; |
2667 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4544 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2668 | |
4545 | |
2669 | if (w->wd == wd || wd == -1) |
4546 | if (w->wd == wd || wd == -1) |
2670 | { |
4547 | { |
2671 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4548 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2672 | { |
4549 | { |
2673 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
4550 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2674 | w->wd = -1; |
4551 | w->wd = -1; |
2675 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4552 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2676 | } |
4553 | } |
2677 | |
4554 | |
2678 | stat_timer_cb (EV_A_ &w->timer, 0); |
4555 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2683 | |
4560 | |
2684 | static void |
4561 | static void |
2685 | infy_cb (EV_P_ ev_io *w, int revents) |
4562 | infy_cb (EV_P_ ev_io *w, int revents) |
2686 | { |
4563 | { |
2687 | char buf [EV_INOTIFY_BUFSIZE]; |
4564 | char buf [EV_INOTIFY_BUFSIZE]; |
2688 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2689 | int ofs; |
4565 | int ofs; |
2690 | int len = read (fs_fd, buf, sizeof (buf)); |
4566 | int len = read (fs_fd, buf, sizeof (buf)); |
2691 | |
4567 | |
2692 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4568 | for (ofs = 0; ofs < len; ) |
|
|
4569 | { |
|
|
4570 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2693 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4571 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4572 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4573 | } |
2694 | } |
4574 | } |
2695 | |
4575 | |
2696 | inline_size void |
4576 | inline_size ecb_cold |
|
|
4577 | void |
2697 | check_2625 (EV_P) |
4578 | ev_check_2625 (EV_P) |
2698 | { |
4579 | { |
2699 | /* kernels < 2.6.25 are borked |
4580 | /* kernels < 2.6.25 are borked |
2700 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4581 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2701 | */ |
4582 | */ |
2702 | struct utsname buf; |
4583 | if (ev_linux_version () < 0x020619) |
2703 | int major, minor, micro; |
|
|
2704 | |
|
|
2705 | if (uname (&buf)) |
|
|
2706 | return; |
4584 | return; |
2707 | |
4585 | |
2708 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2709 | return; |
|
|
2710 | |
|
|
2711 | if (major < 2 |
|
|
2712 | || (major == 2 && minor < 6) |
|
|
2713 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2714 | return; |
|
|
2715 | |
|
|
2716 | fs_2625 = 1; |
4586 | fs_2625 = 1; |
|
|
4587 | } |
|
|
4588 | |
|
|
4589 | inline_size int |
|
|
4590 | infy_newfd (void) |
|
|
4591 | { |
|
|
4592 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4593 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4594 | if (fd >= 0) |
|
|
4595 | return fd; |
|
|
4596 | #endif |
|
|
4597 | return inotify_init (); |
2717 | } |
4598 | } |
2718 | |
4599 | |
2719 | inline_size void |
4600 | inline_size void |
2720 | infy_init (EV_P) |
4601 | infy_init (EV_P) |
2721 | { |
4602 | { |
2722 | if (fs_fd != -2) |
4603 | if (fs_fd != -2) |
2723 | return; |
4604 | return; |
2724 | |
4605 | |
2725 | fs_fd = -1; |
4606 | fs_fd = -1; |
2726 | |
4607 | |
2727 | check_2625 (EV_A); |
4608 | ev_check_2625 (EV_A); |
2728 | |
4609 | |
2729 | fs_fd = inotify_init (); |
4610 | fs_fd = infy_newfd (); |
2730 | |
4611 | |
2731 | if (fs_fd >= 0) |
4612 | if (fs_fd >= 0) |
2732 | { |
4613 | { |
|
|
4614 | fd_intern (fs_fd); |
2733 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4615 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2734 | ev_set_priority (&fs_w, EV_MAXPRI); |
4616 | ev_set_priority (&fs_w, EV_MAXPRI); |
2735 | ev_io_start (EV_A_ &fs_w); |
4617 | ev_io_start (EV_A_ &fs_w); |
|
|
4618 | ev_unref (EV_A); |
2736 | } |
4619 | } |
2737 | } |
4620 | } |
2738 | |
4621 | |
2739 | inline_size void |
4622 | inline_size void |
2740 | infy_fork (EV_P) |
4623 | infy_fork (EV_P) |
… | |
… | |
2742 | int slot; |
4625 | int slot; |
2743 | |
4626 | |
2744 | if (fs_fd < 0) |
4627 | if (fs_fd < 0) |
2745 | return; |
4628 | return; |
2746 | |
4629 | |
|
|
4630 | ev_ref (EV_A); |
|
|
4631 | ev_io_stop (EV_A_ &fs_w); |
2747 | close (fs_fd); |
4632 | close (fs_fd); |
2748 | fs_fd = inotify_init (); |
4633 | fs_fd = infy_newfd (); |
2749 | |
4634 | |
|
|
4635 | if (fs_fd >= 0) |
|
|
4636 | { |
|
|
4637 | fd_intern (fs_fd); |
|
|
4638 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4639 | ev_io_start (EV_A_ &fs_w); |
|
|
4640 | ev_unref (EV_A); |
|
|
4641 | } |
|
|
4642 | |
2750 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4643 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2751 | { |
4644 | { |
2752 | WL w_ = fs_hash [slot].head; |
4645 | WL w_ = fs_hash [slot].head; |
2753 | fs_hash [slot].head = 0; |
4646 | fs_hash [slot].head = 0; |
2754 | |
4647 | |
2755 | while (w_) |
4648 | while (w_) |
… | |
… | |
2760 | w->wd = -1; |
4653 | w->wd = -1; |
2761 | |
4654 | |
2762 | if (fs_fd >= 0) |
4655 | if (fs_fd >= 0) |
2763 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4656 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2764 | else |
4657 | else |
|
|
4658 | { |
|
|
4659 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4660 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2765 | ev_timer_again (EV_A_ &w->timer); |
4661 | ev_timer_again (EV_A_ &w->timer); |
|
|
4662 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4663 | } |
2766 | } |
4664 | } |
2767 | } |
4665 | } |
2768 | } |
4666 | } |
2769 | |
4667 | |
2770 | #endif |
4668 | #endif |
… | |
… | |
2774 | #else |
4672 | #else |
2775 | # define EV_LSTAT(p,b) lstat (p, b) |
4673 | # define EV_LSTAT(p,b) lstat (p, b) |
2776 | #endif |
4674 | #endif |
2777 | |
4675 | |
2778 | void |
4676 | void |
2779 | ev_stat_stat (EV_P_ ev_stat *w) |
4677 | ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT |
2780 | { |
4678 | { |
2781 | if (lstat (w->path, &w->attr) < 0) |
4679 | if (lstat (w->path, &w->attr) < 0) |
2782 | w->attr.st_nlink = 0; |
4680 | w->attr.st_nlink = 0; |
2783 | else if (!w->attr.st_nlink) |
4681 | else if (!w->attr.st_nlink) |
2784 | w->attr.st_nlink = 1; |
4682 | w->attr.st_nlink = 1; |
2785 | } |
4683 | } |
2786 | |
4684 | |
2787 | static void noinline |
4685 | ecb_noinline |
|
|
4686 | static void |
2788 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4687 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2789 | { |
4688 | { |
2790 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4689 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2791 | |
4690 | |
2792 | /* we copy this here each the time so that */ |
4691 | ev_statdata prev = w->attr; |
2793 | /* prev has the old value when the callback gets invoked */ |
|
|
2794 | w->prev = w->attr; |
|
|
2795 | ev_stat_stat (EV_A_ w); |
4692 | ev_stat_stat (EV_A_ w); |
2796 | |
4693 | |
2797 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4694 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2798 | if ( |
4695 | if ( |
2799 | w->prev.st_dev != w->attr.st_dev |
4696 | prev.st_dev != w->attr.st_dev |
2800 | || w->prev.st_ino != w->attr.st_ino |
4697 | || prev.st_ino != w->attr.st_ino |
2801 | || w->prev.st_mode != w->attr.st_mode |
4698 | || prev.st_mode != w->attr.st_mode |
2802 | || w->prev.st_nlink != w->attr.st_nlink |
4699 | || prev.st_nlink != w->attr.st_nlink |
2803 | || w->prev.st_uid != w->attr.st_uid |
4700 | || prev.st_uid != w->attr.st_uid |
2804 | || w->prev.st_gid != w->attr.st_gid |
4701 | || prev.st_gid != w->attr.st_gid |
2805 | || w->prev.st_rdev != w->attr.st_rdev |
4702 | || prev.st_rdev != w->attr.st_rdev |
2806 | || w->prev.st_size != w->attr.st_size |
4703 | || prev.st_size != w->attr.st_size |
2807 | || w->prev.st_atime != w->attr.st_atime |
4704 | || prev.st_atime != w->attr.st_atime |
2808 | || w->prev.st_mtime != w->attr.st_mtime |
4705 | || prev.st_mtime != w->attr.st_mtime |
2809 | || w->prev.st_ctime != w->attr.st_ctime |
4706 | || prev.st_ctime != w->attr.st_ctime |
2810 | ) { |
4707 | ) { |
|
|
4708 | /* we only update w->prev on actual differences */ |
|
|
4709 | /* in case we test more often than invoke the callback, */ |
|
|
4710 | /* to ensure that prev is always different to attr */ |
|
|
4711 | w->prev = prev; |
|
|
4712 | |
2811 | #if EV_USE_INOTIFY |
4713 | #if EV_USE_INOTIFY |
2812 | if (fs_fd >= 0) |
4714 | if (fs_fd >= 0) |
2813 | { |
4715 | { |
2814 | infy_del (EV_A_ w); |
4716 | infy_del (EV_A_ w); |
2815 | infy_add (EV_A_ w); |
4717 | infy_add (EV_A_ w); |
… | |
… | |
2820 | ev_feed_event (EV_A_ w, EV_STAT); |
4722 | ev_feed_event (EV_A_ w, EV_STAT); |
2821 | } |
4723 | } |
2822 | } |
4724 | } |
2823 | |
4725 | |
2824 | void |
4726 | void |
2825 | ev_stat_start (EV_P_ ev_stat *w) |
4727 | ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT |
2826 | { |
4728 | { |
2827 | if (expect_false (ev_is_active (w))) |
4729 | if (ecb_expect_false (ev_is_active (w))) |
2828 | return; |
4730 | return; |
2829 | |
4731 | |
2830 | ev_stat_stat (EV_A_ w); |
4732 | ev_stat_stat (EV_A_ w); |
2831 | |
4733 | |
2832 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
4734 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
… | |
… | |
2840 | |
4742 | |
2841 | if (fs_fd >= 0) |
4743 | if (fs_fd >= 0) |
2842 | infy_add (EV_A_ w); |
4744 | infy_add (EV_A_ w); |
2843 | else |
4745 | else |
2844 | #endif |
4746 | #endif |
|
|
4747 | { |
2845 | ev_timer_again (EV_A_ &w->timer); |
4748 | ev_timer_again (EV_A_ &w->timer); |
|
|
4749 | ev_unref (EV_A); |
|
|
4750 | } |
2846 | |
4751 | |
2847 | ev_start (EV_A_ (W)w, 1); |
4752 | ev_start (EV_A_ (W)w, 1); |
2848 | |
4753 | |
2849 | EV_FREQUENT_CHECK; |
4754 | EV_FREQUENT_CHECK; |
2850 | } |
4755 | } |
2851 | |
4756 | |
2852 | void |
4757 | void |
2853 | ev_stat_stop (EV_P_ ev_stat *w) |
4758 | ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT |
2854 | { |
4759 | { |
2855 | clear_pending (EV_A_ (W)w); |
4760 | clear_pending (EV_A_ (W)w); |
2856 | if (expect_false (!ev_is_active (w))) |
4761 | if (ecb_expect_false (!ev_is_active (w))) |
2857 | return; |
4762 | return; |
2858 | |
4763 | |
2859 | EV_FREQUENT_CHECK; |
4764 | EV_FREQUENT_CHECK; |
2860 | |
4765 | |
2861 | #if EV_USE_INOTIFY |
4766 | #if EV_USE_INOTIFY |
2862 | infy_del (EV_A_ w); |
4767 | infy_del (EV_A_ w); |
2863 | #endif |
4768 | #endif |
|
|
4769 | |
|
|
4770 | if (ev_is_active (&w->timer)) |
|
|
4771 | { |
|
|
4772 | ev_ref (EV_A); |
2864 | ev_timer_stop (EV_A_ &w->timer); |
4773 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4774 | } |
2865 | |
4775 | |
2866 | ev_stop (EV_A_ (W)w); |
4776 | ev_stop (EV_A_ (W)w); |
2867 | |
4777 | |
2868 | EV_FREQUENT_CHECK; |
4778 | EV_FREQUENT_CHECK; |
2869 | } |
4779 | } |
2870 | #endif |
4780 | #endif |
2871 | |
4781 | |
2872 | #if EV_IDLE_ENABLE |
4782 | #if EV_IDLE_ENABLE |
2873 | void |
4783 | void |
2874 | ev_idle_start (EV_P_ ev_idle *w) |
4784 | ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT |
2875 | { |
4785 | { |
2876 | if (expect_false (ev_is_active (w))) |
4786 | if (ecb_expect_false (ev_is_active (w))) |
2877 | return; |
4787 | return; |
2878 | |
4788 | |
2879 | pri_adjust (EV_A_ (W)w); |
4789 | pri_adjust (EV_A_ (W)w); |
2880 | |
4790 | |
2881 | EV_FREQUENT_CHECK; |
4791 | EV_FREQUENT_CHECK; |
… | |
… | |
2884 | int active = ++idlecnt [ABSPRI (w)]; |
4794 | int active = ++idlecnt [ABSPRI (w)]; |
2885 | |
4795 | |
2886 | ++idleall; |
4796 | ++idleall; |
2887 | ev_start (EV_A_ (W)w, active); |
4797 | ev_start (EV_A_ (W)w, active); |
2888 | |
4798 | |
2889 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4799 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit); |
2890 | idles [ABSPRI (w)][active - 1] = w; |
4800 | idles [ABSPRI (w)][active - 1] = w; |
2891 | } |
4801 | } |
2892 | |
4802 | |
2893 | EV_FREQUENT_CHECK; |
4803 | EV_FREQUENT_CHECK; |
2894 | } |
4804 | } |
2895 | |
4805 | |
2896 | void |
4806 | void |
2897 | ev_idle_stop (EV_P_ ev_idle *w) |
4807 | ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT |
2898 | { |
4808 | { |
2899 | clear_pending (EV_A_ (W)w); |
4809 | clear_pending (EV_A_ (W)w); |
2900 | if (expect_false (!ev_is_active (w))) |
4810 | if (ecb_expect_false (!ev_is_active (w))) |
2901 | return; |
4811 | return; |
2902 | |
4812 | |
2903 | EV_FREQUENT_CHECK; |
4813 | EV_FREQUENT_CHECK; |
2904 | |
4814 | |
2905 | { |
4815 | { |
… | |
… | |
2914 | |
4824 | |
2915 | EV_FREQUENT_CHECK; |
4825 | EV_FREQUENT_CHECK; |
2916 | } |
4826 | } |
2917 | #endif |
4827 | #endif |
2918 | |
4828 | |
|
|
4829 | #if EV_PREPARE_ENABLE |
2919 | void |
4830 | void |
2920 | ev_prepare_start (EV_P_ ev_prepare *w) |
4831 | ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT |
2921 | { |
4832 | { |
2922 | if (expect_false (ev_is_active (w))) |
4833 | if (ecb_expect_false (ev_is_active (w))) |
2923 | return; |
4834 | return; |
2924 | |
4835 | |
2925 | EV_FREQUENT_CHECK; |
4836 | EV_FREQUENT_CHECK; |
2926 | |
4837 | |
2927 | ev_start (EV_A_ (W)w, ++preparecnt); |
4838 | ev_start (EV_A_ (W)w, ++preparecnt); |
2928 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4839 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit); |
2929 | prepares [preparecnt - 1] = w; |
4840 | prepares [preparecnt - 1] = w; |
2930 | |
4841 | |
2931 | EV_FREQUENT_CHECK; |
4842 | EV_FREQUENT_CHECK; |
2932 | } |
4843 | } |
2933 | |
4844 | |
2934 | void |
4845 | void |
2935 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4846 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT |
2936 | { |
4847 | { |
2937 | clear_pending (EV_A_ (W)w); |
4848 | clear_pending (EV_A_ (W)w); |
2938 | if (expect_false (!ev_is_active (w))) |
4849 | if (ecb_expect_false (!ev_is_active (w))) |
2939 | return; |
4850 | return; |
2940 | |
4851 | |
2941 | EV_FREQUENT_CHECK; |
4852 | EV_FREQUENT_CHECK; |
2942 | |
4853 | |
2943 | { |
4854 | { |
… | |
… | |
2949 | |
4860 | |
2950 | ev_stop (EV_A_ (W)w); |
4861 | ev_stop (EV_A_ (W)w); |
2951 | |
4862 | |
2952 | EV_FREQUENT_CHECK; |
4863 | EV_FREQUENT_CHECK; |
2953 | } |
4864 | } |
|
|
4865 | #endif |
2954 | |
4866 | |
|
|
4867 | #if EV_CHECK_ENABLE |
2955 | void |
4868 | void |
2956 | ev_check_start (EV_P_ ev_check *w) |
4869 | ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT |
2957 | { |
4870 | { |
2958 | if (expect_false (ev_is_active (w))) |
4871 | if (ecb_expect_false (ev_is_active (w))) |
2959 | return; |
4872 | return; |
2960 | |
4873 | |
2961 | EV_FREQUENT_CHECK; |
4874 | EV_FREQUENT_CHECK; |
2962 | |
4875 | |
2963 | ev_start (EV_A_ (W)w, ++checkcnt); |
4876 | ev_start (EV_A_ (W)w, ++checkcnt); |
2964 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4877 | array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit); |
2965 | checks [checkcnt - 1] = w; |
4878 | checks [checkcnt - 1] = w; |
2966 | |
4879 | |
2967 | EV_FREQUENT_CHECK; |
4880 | EV_FREQUENT_CHECK; |
2968 | } |
4881 | } |
2969 | |
4882 | |
2970 | void |
4883 | void |
2971 | ev_check_stop (EV_P_ ev_check *w) |
4884 | ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT |
2972 | { |
4885 | { |
2973 | clear_pending (EV_A_ (W)w); |
4886 | clear_pending (EV_A_ (W)w); |
2974 | if (expect_false (!ev_is_active (w))) |
4887 | if (ecb_expect_false (!ev_is_active (w))) |
2975 | return; |
4888 | return; |
2976 | |
4889 | |
2977 | EV_FREQUENT_CHECK; |
4890 | EV_FREQUENT_CHECK; |
2978 | |
4891 | |
2979 | { |
4892 | { |
… | |
… | |
2985 | |
4898 | |
2986 | ev_stop (EV_A_ (W)w); |
4899 | ev_stop (EV_A_ (W)w); |
2987 | |
4900 | |
2988 | EV_FREQUENT_CHECK; |
4901 | EV_FREQUENT_CHECK; |
2989 | } |
4902 | } |
|
|
4903 | #endif |
2990 | |
4904 | |
2991 | #if EV_EMBED_ENABLE |
4905 | #if EV_EMBED_ENABLE |
2992 | void noinline |
4906 | ecb_noinline |
|
|
4907 | void |
2993 | ev_embed_sweep (EV_P_ ev_embed *w) |
4908 | ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT |
2994 | { |
4909 | { |
2995 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4910 | ev_run (w->other, EVRUN_NOWAIT); |
2996 | } |
4911 | } |
2997 | |
4912 | |
2998 | static void |
4913 | static void |
2999 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4914 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3000 | { |
4915 | { |
3001 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4916 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3002 | |
4917 | |
3003 | if (ev_cb (w)) |
4918 | if (ev_cb (w)) |
3004 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4919 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3005 | else |
4920 | else |
3006 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4921 | ev_run (w->other, EVRUN_NOWAIT); |
3007 | } |
4922 | } |
3008 | |
4923 | |
3009 | static void |
4924 | static void |
3010 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4925 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3011 | { |
4926 | { |
3012 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4927 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3013 | |
4928 | |
3014 | { |
4929 | { |
3015 | struct ev_loop *loop = w->other; |
4930 | EV_P = w->other; |
3016 | |
4931 | |
3017 | while (fdchangecnt) |
4932 | while (fdchangecnt) |
3018 | { |
4933 | { |
3019 | fd_reify (EV_A); |
4934 | fd_reify (EV_A); |
3020 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4935 | ev_run (EV_A_ EVRUN_NOWAIT); |
3021 | } |
4936 | } |
3022 | } |
4937 | } |
3023 | } |
4938 | } |
3024 | |
4939 | |
3025 | static void |
4940 | static void |
… | |
… | |
3028 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
4943 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3029 | |
4944 | |
3030 | ev_embed_stop (EV_A_ w); |
4945 | ev_embed_stop (EV_A_ w); |
3031 | |
4946 | |
3032 | { |
4947 | { |
3033 | struct ev_loop *loop = w->other; |
4948 | EV_P = w->other; |
3034 | |
4949 | |
3035 | ev_loop_fork (EV_A); |
4950 | ev_loop_fork (EV_A); |
3036 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4951 | ev_run (EV_A_ EVRUN_NOWAIT); |
3037 | } |
4952 | } |
3038 | |
4953 | |
3039 | ev_embed_start (EV_A_ w); |
4954 | ev_embed_start (EV_A_ w); |
3040 | } |
4955 | } |
3041 | |
4956 | |
… | |
… | |
3046 | ev_idle_stop (EV_A_ idle); |
4961 | ev_idle_stop (EV_A_ idle); |
3047 | } |
4962 | } |
3048 | #endif |
4963 | #endif |
3049 | |
4964 | |
3050 | void |
4965 | void |
3051 | ev_embed_start (EV_P_ ev_embed *w) |
4966 | ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT |
3052 | { |
4967 | { |
3053 | if (expect_false (ev_is_active (w))) |
4968 | if (ecb_expect_false (ev_is_active (w))) |
3054 | return; |
4969 | return; |
3055 | |
4970 | |
3056 | { |
4971 | { |
3057 | struct ev_loop *loop = w->other; |
4972 | EV_P = w->other; |
3058 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4973 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3059 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4974 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3060 | } |
4975 | } |
3061 | |
4976 | |
3062 | EV_FREQUENT_CHECK; |
4977 | EV_FREQUENT_CHECK; |
… | |
… | |
3077 | |
4992 | |
3078 | EV_FREQUENT_CHECK; |
4993 | EV_FREQUENT_CHECK; |
3079 | } |
4994 | } |
3080 | |
4995 | |
3081 | void |
4996 | void |
3082 | ev_embed_stop (EV_P_ ev_embed *w) |
4997 | ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT |
3083 | { |
4998 | { |
3084 | clear_pending (EV_A_ (W)w); |
4999 | clear_pending (EV_A_ (W)w); |
3085 | if (expect_false (!ev_is_active (w))) |
5000 | if (ecb_expect_false (!ev_is_active (w))) |
3086 | return; |
5001 | return; |
3087 | |
5002 | |
3088 | EV_FREQUENT_CHECK; |
5003 | EV_FREQUENT_CHECK; |
3089 | |
5004 | |
3090 | ev_io_stop (EV_A_ &w->io); |
5005 | ev_io_stop (EV_A_ &w->io); |
3091 | ev_prepare_stop (EV_A_ &w->prepare); |
5006 | ev_prepare_stop (EV_A_ &w->prepare); |
3092 | ev_fork_stop (EV_A_ &w->fork); |
5007 | ev_fork_stop (EV_A_ &w->fork); |
3093 | |
5008 | |
|
|
5009 | ev_stop (EV_A_ (W)w); |
|
|
5010 | |
3094 | EV_FREQUENT_CHECK; |
5011 | EV_FREQUENT_CHECK; |
3095 | } |
5012 | } |
3096 | #endif |
5013 | #endif |
3097 | |
5014 | |
3098 | #if EV_FORK_ENABLE |
5015 | #if EV_FORK_ENABLE |
3099 | void |
5016 | void |
3100 | ev_fork_start (EV_P_ ev_fork *w) |
5017 | ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT |
3101 | { |
5018 | { |
3102 | if (expect_false (ev_is_active (w))) |
5019 | if (ecb_expect_false (ev_is_active (w))) |
3103 | return; |
5020 | return; |
3104 | |
5021 | |
3105 | EV_FREQUENT_CHECK; |
5022 | EV_FREQUENT_CHECK; |
3106 | |
5023 | |
3107 | ev_start (EV_A_ (W)w, ++forkcnt); |
5024 | ev_start (EV_A_ (W)w, ++forkcnt); |
3108 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
5025 | array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit); |
3109 | forks [forkcnt - 1] = w; |
5026 | forks [forkcnt - 1] = w; |
3110 | |
5027 | |
3111 | EV_FREQUENT_CHECK; |
5028 | EV_FREQUENT_CHECK; |
3112 | } |
5029 | } |
3113 | |
5030 | |
3114 | void |
5031 | void |
3115 | ev_fork_stop (EV_P_ ev_fork *w) |
5032 | ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT |
3116 | { |
5033 | { |
3117 | clear_pending (EV_A_ (W)w); |
5034 | clear_pending (EV_A_ (W)w); |
3118 | if (expect_false (!ev_is_active (w))) |
5035 | if (ecb_expect_false (!ev_is_active (w))) |
3119 | return; |
5036 | return; |
3120 | |
5037 | |
3121 | EV_FREQUENT_CHECK; |
5038 | EV_FREQUENT_CHECK; |
3122 | |
5039 | |
3123 | { |
5040 | { |
… | |
… | |
3131 | |
5048 | |
3132 | EV_FREQUENT_CHECK; |
5049 | EV_FREQUENT_CHECK; |
3133 | } |
5050 | } |
3134 | #endif |
5051 | #endif |
3135 | |
5052 | |
|
|
5053 | #if EV_CLEANUP_ENABLE |
|
|
5054 | void |
|
|
5055 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5056 | { |
|
|
5057 | if (ecb_expect_false (ev_is_active (w))) |
|
|
5058 | return; |
|
|
5059 | |
|
|
5060 | EV_FREQUENT_CHECK; |
|
|
5061 | |
|
|
5062 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
5063 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit); |
|
|
5064 | cleanups [cleanupcnt - 1] = w; |
|
|
5065 | |
|
|
5066 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
5067 | ev_unref (EV_A); |
|
|
5068 | EV_FREQUENT_CHECK; |
|
|
5069 | } |
|
|
5070 | |
|
|
5071 | void |
|
|
5072 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT |
|
|
5073 | { |
|
|
5074 | clear_pending (EV_A_ (W)w); |
|
|
5075 | if (ecb_expect_false (!ev_is_active (w))) |
|
|
5076 | return; |
|
|
5077 | |
|
|
5078 | EV_FREQUENT_CHECK; |
|
|
5079 | ev_ref (EV_A); |
|
|
5080 | |
|
|
5081 | { |
|
|
5082 | int active = ev_active (w); |
|
|
5083 | |
|
|
5084 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
5085 | ev_active (cleanups [active - 1]) = active; |
|
|
5086 | } |
|
|
5087 | |
|
|
5088 | ev_stop (EV_A_ (W)w); |
|
|
5089 | |
|
|
5090 | EV_FREQUENT_CHECK; |
|
|
5091 | } |
|
|
5092 | #endif |
|
|
5093 | |
3136 | #if EV_ASYNC_ENABLE |
5094 | #if EV_ASYNC_ENABLE |
3137 | void |
5095 | void |
3138 | ev_async_start (EV_P_ ev_async *w) |
5096 | ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT |
3139 | { |
5097 | { |
3140 | if (expect_false (ev_is_active (w))) |
5098 | if (ecb_expect_false (ev_is_active (w))) |
3141 | return; |
5099 | return; |
3142 | |
5100 | |
|
|
5101 | w->sent = 0; |
|
|
5102 | |
3143 | evpipe_init (EV_A); |
5103 | evpipe_init (EV_A); |
3144 | |
5104 | |
3145 | EV_FREQUENT_CHECK; |
5105 | EV_FREQUENT_CHECK; |
3146 | |
5106 | |
3147 | ev_start (EV_A_ (W)w, ++asynccnt); |
5107 | ev_start (EV_A_ (W)w, ++asynccnt); |
3148 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
5108 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit); |
3149 | asyncs [asynccnt - 1] = w; |
5109 | asyncs [asynccnt - 1] = w; |
3150 | |
5110 | |
3151 | EV_FREQUENT_CHECK; |
5111 | EV_FREQUENT_CHECK; |
3152 | } |
5112 | } |
3153 | |
5113 | |
3154 | void |
5114 | void |
3155 | ev_async_stop (EV_P_ ev_async *w) |
5115 | ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT |
3156 | { |
5116 | { |
3157 | clear_pending (EV_A_ (W)w); |
5117 | clear_pending (EV_A_ (W)w); |
3158 | if (expect_false (!ev_is_active (w))) |
5118 | if (ecb_expect_false (!ev_is_active (w))) |
3159 | return; |
5119 | return; |
3160 | |
5120 | |
3161 | EV_FREQUENT_CHECK; |
5121 | EV_FREQUENT_CHECK; |
3162 | |
5122 | |
3163 | { |
5123 | { |
… | |
… | |
3171 | |
5131 | |
3172 | EV_FREQUENT_CHECK; |
5132 | EV_FREQUENT_CHECK; |
3173 | } |
5133 | } |
3174 | |
5134 | |
3175 | void |
5135 | void |
3176 | ev_async_send (EV_P_ ev_async *w) |
5136 | ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT |
3177 | { |
5137 | { |
3178 | w->sent = 1; |
5138 | w->sent = 1; |
3179 | evpipe_write (EV_A_ &gotasync); |
5139 | evpipe_write (EV_A_ &async_pending); |
3180 | } |
5140 | } |
3181 | #endif |
5141 | #endif |
3182 | |
5142 | |
3183 | /*****************************************************************************/ |
5143 | /*****************************************************************************/ |
3184 | |
5144 | |
… | |
… | |
3218 | |
5178 | |
3219 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
5179 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3220 | } |
5180 | } |
3221 | |
5181 | |
3222 | void |
5182 | void |
3223 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
5183 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT |
3224 | { |
5184 | { |
3225 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
5185 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3226 | |
|
|
3227 | if (expect_false (!once)) |
|
|
3228 | { |
|
|
3229 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
|
|
3230 | return; |
|
|
3231 | } |
|
|
3232 | |
5186 | |
3233 | once->cb = cb; |
5187 | once->cb = cb; |
3234 | once->arg = arg; |
5188 | once->arg = arg; |
3235 | |
5189 | |
3236 | ev_init (&once->io, once_cb_io); |
5190 | ev_init (&once->io, once_cb_io); |
… | |
… | |
3249 | } |
5203 | } |
3250 | |
5204 | |
3251 | /*****************************************************************************/ |
5205 | /*****************************************************************************/ |
3252 | |
5206 | |
3253 | #if EV_WALK_ENABLE |
5207 | #if EV_WALK_ENABLE |
|
|
5208 | ecb_cold |
3254 | void |
5209 | void |
3255 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
5210 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT |
3256 | { |
5211 | { |
3257 | int i, j; |
5212 | int i, j; |
3258 | ev_watcher_list *wl, *wn; |
5213 | ev_watcher_list *wl, *wn; |
3259 | |
5214 | |
3260 | if (types & (EV_IO | EV_EMBED)) |
5215 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3303 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5258 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3304 | #endif |
5259 | #endif |
3305 | |
5260 | |
3306 | #if EV_IDLE_ENABLE |
5261 | #if EV_IDLE_ENABLE |
3307 | if (types & EV_IDLE) |
5262 | if (types & EV_IDLE) |
3308 | for (j = NUMPRI; i--; ) |
5263 | for (j = NUMPRI; j--; ) |
3309 | for (i = idlecnt [j]; i--; ) |
5264 | for (i = idlecnt [j]; i--; ) |
3310 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5265 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3311 | #endif |
5266 | #endif |
3312 | |
5267 | |
3313 | #if EV_FORK_ENABLE |
5268 | #if EV_FORK_ENABLE |
… | |
… | |
3321 | if (types & EV_ASYNC) |
5276 | if (types & EV_ASYNC) |
3322 | for (i = asynccnt; i--; ) |
5277 | for (i = asynccnt; i--; ) |
3323 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
5278 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3324 | #endif |
5279 | #endif |
3325 | |
5280 | |
|
|
5281 | #if EV_PREPARE_ENABLE |
3326 | if (types & EV_PREPARE) |
5282 | if (types & EV_PREPARE) |
3327 | for (i = preparecnt; i--; ) |
5283 | for (i = preparecnt; i--; ) |
3328 | #if EV_EMBED_ENABLE |
5284 | # if EV_EMBED_ENABLE |
3329 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
5285 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3330 | #endif |
5286 | # endif |
3331 | cb (EV_A_ EV_PREPARE, prepares [i]); |
5287 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
5288 | #endif |
3332 | |
5289 | |
|
|
5290 | #if EV_CHECK_ENABLE |
3333 | if (types & EV_CHECK) |
5291 | if (types & EV_CHECK) |
3334 | for (i = checkcnt; i--; ) |
5292 | for (i = checkcnt; i--; ) |
3335 | cb (EV_A_ EV_CHECK, checks [i]); |
5293 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
5294 | #endif |
3336 | |
5295 | |
|
|
5296 | #if EV_SIGNAL_ENABLE |
3337 | if (types & EV_SIGNAL) |
5297 | if (types & EV_SIGNAL) |
3338 | for (i = 0; i < signalmax; ++i) |
5298 | for (i = 0; i < EV_NSIG - 1; ++i) |
3339 | for (wl = signals [i].head; wl; ) |
5299 | for (wl = signals [i].head; wl; ) |
3340 | { |
5300 | { |
3341 | wn = wl->next; |
5301 | wn = wl->next; |
3342 | cb (EV_A_ EV_SIGNAL, wl); |
5302 | cb (EV_A_ EV_SIGNAL, wl); |
3343 | wl = wn; |
5303 | wl = wn; |
3344 | } |
5304 | } |
|
|
5305 | #endif |
3345 | |
5306 | |
|
|
5307 | #if EV_CHILD_ENABLE |
3346 | if (types & EV_CHILD) |
5308 | if (types & EV_CHILD) |
3347 | for (i = EV_PID_HASHSIZE; i--; ) |
5309 | for (i = (EV_PID_HASHSIZE); i--; ) |
3348 | for (wl = childs [i]; wl; ) |
5310 | for (wl = childs [i]; wl; ) |
3349 | { |
5311 | { |
3350 | wn = wl->next; |
5312 | wn = wl->next; |
3351 | cb (EV_A_ EV_CHILD, wl); |
5313 | cb (EV_A_ EV_CHILD, wl); |
3352 | wl = wn; |
5314 | wl = wn; |
3353 | } |
5315 | } |
|
|
5316 | #endif |
3354 | /* EV_STAT 0x00001000 /* stat data changed */ |
5317 | /* EV_STAT 0x00001000 /* stat data changed */ |
3355 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
5318 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3356 | } |
5319 | } |
3357 | #endif |
5320 | #endif |
3358 | |
5321 | |
3359 | #if EV_MULTIPLICITY |
5322 | #if EV_MULTIPLICITY |
3360 | #include "ev_wrap.h" |
5323 | #include "ev_wrap.h" |
3361 | #endif |
5324 | #endif |
3362 | |
5325 | |
3363 | #ifdef __cplusplus |
|
|
3364 | } |
|
|
3365 | #endif |
|
|
3366 | |
|
|