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) 2007,2008,2009,2010 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 | * |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
77 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
78 | # define EV_USE_REALTIME 0 |
79 | # endif |
79 | # endif |
80 | # endif |
80 | # endif |
81 | |
81 | |
|
|
82 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
83 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP 1 |
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
85 | # endif |
85 | # else |
86 | # else |
|
|
87 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
88 | # define EV_USE_NANOSLEEP 0 |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
92 | # ifndef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
94 | # endif |
|
|
95 | # else |
|
|
96 | # undef EV_USE_SELECT |
|
|
97 | # define EV_USE_SELECT 0 |
88 | # endif |
98 | # endif |
89 | |
99 | |
|
|
100 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
101 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
102 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
92 | # define EV_USE_SELECT 1 |
|
|
93 | # else |
|
|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
103 | # endif |
96 | # endif |
|
|
97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
|
|
100 | # define EV_USE_POLL 1 |
|
|
101 | # else |
104 | # else |
|
|
105 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
106 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
107 | # endif |
105 | |
108 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
109 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
110 | # ifndef EV_USE_EPOLL |
109 | # else |
111 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
112 | # endif |
|
|
113 | # else |
|
|
114 | # undef EV_USE_EPOLL |
|
|
115 | # define EV_USE_EPOLL 0 |
112 | # endif |
116 | # endif |
113 | |
117 | |
|
|
118 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # ifndef EV_USE_KQUEUE |
119 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
120 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
116 | # define EV_USE_KQUEUE 1 |
|
|
117 | # else |
|
|
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
121 | # endif |
|
|
122 | # else |
|
|
123 | # undef EV_USE_KQUEUE |
|
|
124 | # define EV_USE_KQUEUE 0 |
120 | # endif |
125 | # endif |
121 | |
126 | |
122 | # ifndef EV_USE_PORT |
|
|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
127 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
128 | # ifndef EV_USE_PORT |
125 | # else |
129 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
130 | # endif |
|
|
131 | # else |
|
|
132 | # undef EV_USE_PORT |
|
|
133 | # define EV_USE_PORT 0 |
128 | # endif |
134 | # endif |
129 | |
135 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
136 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
137 | # ifndef EV_USE_INOTIFY |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
138 | # define EV_USE_INOTIFY EV_FEATURE_OS |
135 | # endif |
139 | # endif |
|
|
140 | # else |
|
|
141 | # undef EV_USE_INOTIFY |
|
|
142 | # define EV_USE_INOTIFY 0 |
136 | # endif |
143 | # endif |
137 | |
144 | |
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
145 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
140 | # define EV_USE_SIGNALFD 1 |
146 | # ifndef EV_USE_SIGNALFD |
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
147 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
143 | # endif |
148 | # endif |
|
|
149 | # else |
|
|
150 | # undef EV_USE_SIGNALFD |
|
|
151 | # define EV_USE_SIGNALFD 0 |
144 | # endif |
152 | # endif |
145 | |
153 | |
|
|
154 | # if HAVE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
155 | # ifndef EV_USE_EVENTFD |
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD 1 |
156 | # define EV_USE_EVENTFD EV_FEATURE_OS |
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
157 | # endif |
|
|
158 | # else |
|
|
159 | # undef EV_USE_EVENTFD |
|
|
160 | # define EV_USE_EVENTFD 0 |
152 | # endif |
161 | # endif |
153 | |
162 | |
154 | #endif |
163 | #endif |
155 | |
164 | |
156 | #include <math.h> |
165 | #include <math.h> |
157 | #include <stdlib.h> |
166 | #include <stdlib.h> |
|
|
167 | #include <string.h> |
158 | #include <fcntl.h> |
168 | #include <fcntl.h> |
159 | #include <stddef.h> |
169 | #include <stddef.h> |
160 | |
170 | |
161 | #include <stdio.h> |
171 | #include <stdio.h> |
162 | |
172 | |
163 | #include <assert.h> |
173 | #include <assert.h> |
164 | #include <errno.h> |
174 | #include <errno.h> |
165 | #include <sys/types.h> |
175 | #include <sys/types.h> |
166 | #include <time.h> |
176 | #include <time.h> |
|
|
177 | #include <limits.h> |
167 | |
178 | |
168 | #include <signal.h> |
179 | #include <signal.h> |
169 | |
180 | |
170 | #ifdef EV_H |
181 | #ifdef EV_H |
171 | # include EV_H |
182 | # include EV_H |
… | |
… | |
182 | # define WIN32_LEAN_AND_MEAN |
193 | # define WIN32_LEAN_AND_MEAN |
183 | # include <windows.h> |
194 | # include <windows.h> |
184 | # ifndef EV_SELECT_IS_WINSOCKET |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # define EV_SELECT_IS_WINSOCKET 1 |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # endif |
197 | # endif |
|
|
198 | # undef EV_AVOID_STDIO |
187 | #endif |
199 | #endif |
|
|
200 | |
|
|
201 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
202 | * a limit of 1024 into their select. Where people have brains, |
|
|
203 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
|
204 | * ordered to have a vacuum, or they do anything for money. |
|
|
205 | * This might help. Or not. |
|
|
206 | */ |
|
|
207 | #define _DARWIN_UNLIMITED_SELECT 1 |
188 | |
208 | |
189 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
209 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
210 | |
|
|
211 | /* try to deduce the maximum number of signals on this platform */ |
|
|
212 | #if defined (EV_NSIG) |
|
|
213 | /* use what's provided */ |
|
|
214 | #elif defined (NSIG) |
|
|
215 | # define EV_NSIG (NSIG) |
|
|
216 | #elif defined(_NSIG) |
|
|
217 | # define EV_NSIG (_NSIG) |
|
|
218 | #elif defined (SIGMAX) |
|
|
219 | # define EV_NSIG (SIGMAX+1) |
|
|
220 | #elif defined (SIG_MAX) |
|
|
221 | # define EV_NSIG (SIG_MAX+1) |
|
|
222 | #elif defined (_SIG_MAX) |
|
|
223 | # define EV_NSIG (_SIG_MAX+1) |
|
|
224 | #elif defined (MAXSIG) |
|
|
225 | # define EV_NSIG (MAXSIG+1) |
|
|
226 | #elif defined (MAX_SIG) |
|
|
227 | # define EV_NSIG (MAX_SIG+1) |
|
|
228 | #elif defined (SIGARRAYSIZE) |
|
|
229 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
230 | #elif defined (_sys_nsig) |
|
|
231 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
232 | #else |
|
|
233 | # error "unable to find value for NSIG, please report" |
|
|
234 | /* to make it compile regardless, just remove the above line, */ |
|
|
235 | /* but consider reporting it, too! :) */ |
|
|
236 | # define EV_NSIG 65 |
|
|
237 | #endif |
190 | |
238 | |
191 | #ifndef EV_USE_CLOCK_SYSCALL |
239 | #ifndef EV_USE_CLOCK_SYSCALL |
192 | # if __linux && __GLIBC__ >= 2 |
240 | # if __linux && __GLIBC__ >= 2 |
193 | # define EV_USE_CLOCK_SYSCALL 1 |
241 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
194 | # else |
242 | # else |
195 | # define EV_USE_CLOCK_SYSCALL 0 |
243 | # define EV_USE_CLOCK_SYSCALL 0 |
196 | # endif |
244 | # endif |
197 | #endif |
245 | #endif |
198 | |
246 | |
199 | #ifndef EV_USE_MONOTONIC |
247 | #ifndef EV_USE_MONOTONIC |
200 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
248 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
201 | # define EV_USE_MONOTONIC 1 |
249 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
202 | # else |
250 | # else |
203 | # define EV_USE_MONOTONIC 0 |
251 | # define EV_USE_MONOTONIC 0 |
204 | # endif |
252 | # endif |
205 | #endif |
253 | #endif |
206 | |
254 | |
… | |
… | |
208 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
256 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
209 | #endif |
257 | #endif |
210 | |
258 | |
211 | #ifndef EV_USE_NANOSLEEP |
259 | #ifndef EV_USE_NANOSLEEP |
212 | # if _POSIX_C_SOURCE >= 199309L |
260 | # if _POSIX_C_SOURCE >= 199309L |
213 | # define EV_USE_NANOSLEEP 1 |
261 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
214 | # else |
262 | # else |
215 | # define EV_USE_NANOSLEEP 0 |
263 | # define EV_USE_NANOSLEEP 0 |
216 | # endif |
264 | # endif |
217 | #endif |
265 | #endif |
218 | |
266 | |
219 | #ifndef EV_USE_SELECT |
267 | #ifndef EV_USE_SELECT |
220 | # define EV_USE_SELECT 1 |
268 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
221 | #endif |
269 | #endif |
222 | |
270 | |
223 | #ifndef EV_USE_POLL |
271 | #ifndef EV_USE_POLL |
224 | # ifdef _WIN32 |
272 | # ifdef _WIN32 |
225 | # define EV_USE_POLL 0 |
273 | # define EV_USE_POLL 0 |
226 | # else |
274 | # else |
227 | # define EV_USE_POLL 1 |
275 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
228 | # endif |
276 | # endif |
229 | #endif |
277 | #endif |
230 | |
278 | |
231 | #ifndef EV_USE_EPOLL |
279 | #ifndef EV_USE_EPOLL |
232 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
280 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
233 | # define EV_USE_EPOLL 1 |
281 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
234 | # else |
282 | # else |
235 | # define EV_USE_EPOLL 0 |
283 | # define EV_USE_EPOLL 0 |
236 | # endif |
284 | # endif |
237 | #endif |
285 | #endif |
238 | |
286 | |
… | |
… | |
244 | # define EV_USE_PORT 0 |
292 | # define EV_USE_PORT 0 |
245 | #endif |
293 | #endif |
246 | |
294 | |
247 | #ifndef EV_USE_INOTIFY |
295 | #ifndef EV_USE_INOTIFY |
248 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
296 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
249 | # define EV_USE_INOTIFY 1 |
297 | # define EV_USE_INOTIFY EV_FEATURE_OS |
250 | # else |
298 | # else |
251 | # define EV_USE_INOTIFY 0 |
299 | # define EV_USE_INOTIFY 0 |
252 | # endif |
300 | # endif |
253 | #endif |
301 | #endif |
254 | |
302 | |
255 | #ifndef EV_PID_HASHSIZE |
303 | #ifndef EV_PID_HASHSIZE |
256 | # if EV_MINIMAL |
304 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
257 | # define EV_PID_HASHSIZE 1 |
|
|
258 | # else |
|
|
259 | # define EV_PID_HASHSIZE 16 |
|
|
260 | # endif |
|
|
261 | #endif |
305 | #endif |
262 | |
306 | |
263 | #ifndef EV_INOTIFY_HASHSIZE |
307 | #ifndef EV_INOTIFY_HASHSIZE |
264 | # if EV_MINIMAL |
308 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
265 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
266 | # else |
|
|
267 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
268 | # endif |
|
|
269 | #endif |
309 | #endif |
270 | |
310 | |
271 | #ifndef EV_USE_EVENTFD |
311 | #ifndef EV_USE_EVENTFD |
272 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
273 | # define EV_USE_EVENTFD 1 |
313 | # define EV_USE_EVENTFD EV_FEATURE_OS |
274 | # else |
314 | # else |
275 | # define EV_USE_EVENTFD 0 |
315 | # define EV_USE_EVENTFD 0 |
276 | # endif |
316 | # endif |
277 | #endif |
317 | #endif |
278 | |
318 | |
279 | #ifndef EV_USE_SIGNALFD |
319 | #ifndef EV_USE_SIGNALFD |
280 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9)) |
320 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
281 | # define EV_USE_SIGNALFD 1 |
321 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
282 | # else |
322 | # else |
283 | # define EV_USE_SIGNALFD 0 |
323 | # define EV_USE_SIGNALFD 0 |
284 | # endif |
324 | # endif |
285 | #endif |
325 | #endif |
286 | |
326 | |
… | |
… | |
289 | # define EV_USE_4HEAP 1 |
329 | # define EV_USE_4HEAP 1 |
290 | # define EV_HEAP_CACHE_AT 1 |
330 | # define EV_HEAP_CACHE_AT 1 |
291 | #endif |
331 | #endif |
292 | |
332 | |
293 | #ifndef EV_VERIFY |
333 | #ifndef EV_VERIFY |
294 | # define EV_VERIFY !EV_MINIMAL |
334 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
295 | #endif |
335 | #endif |
296 | |
336 | |
297 | #ifndef EV_USE_4HEAP |
337 | #ifndef EV_USE_4HEAP |
298 | # define EV_USE_4HEAP !EV_MINIMAL |
338 | # define EV_USE_4HEAP EV_FEATURE_DATA |
299 | #endif |
339 | #endif |
300 | |
340 | |
301 | #ifndef EV_HEAP_CACHE_AT |
341 | #ifndef EV_HEAP_CACHE_AT |
302 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
342 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
303 | #endif |
343 | #endif |
304 | |
344 | |
305 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
345 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
306 | /* which makes programs even slower. might work on other unices, too. */ |
346 | /* which makes programs even slower. might work on other unices, too. */ |
307 | #if EV_USE_CLOCK_SYSCALL |
347 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
316 | # endif |
356 | # endif |
317 | #endif |
357 | #endif |
318 | |
358 | |
319 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
359 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
320 | |
360 | |
|
|
361 | #ifdef _AIX |
|
|
362 | /* AIX has a completely broken poll.h header */ |
|
|
363 | # undef EV_USE_POLL |
|
|
364 | # define EV_USE_POLL 0 |
|
|
365 | #endif |
|
|
366 | |
321 | #ifndef CLOCK_MONOTONIC |
367 | #ifndef CLOCK_MONOTONIC |
322 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
323 | # define EV_USE_MONOTONIC 0 |
369 | # define EV_USE_MONOTONIC 0 |
324 | #endif |
370 | #endif |
325 | |
371 | |
… | |
… | |
359 | # include <stdint.h> |
405 | # include <stdint.h> |
360 | # ifndef EFD_NONBLOCK |
406 | # ifndef EFD_NONBLOCK |
361 | # define EFD_NONBLOCK O_NONBLOCK |
407 | # define EFD_NONBLOCK O_NONBLOCK |
362 | # endif |
408 | # endif |
363 | # ifndef EFD_CLOEXEC |
409 | # ifndef EFD_CLOEXEC |
|
|
410 | # ifdef O_CLOEXEC |
364 | # define EFD_CLOEXEC O_CLOEXEC |
411 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
412 | # else |
|
|
413 | # define EFD_CLOEXEC 02000000 |
|
|
414 | # endif |
365 | # endif |
415 | # endif |
366 | # ifdef __cplusplus |
416 | # ifdef __cplusplus |
367 | extern "C" { |
417 | extern "C" { |
368 | # endif |
418 | # endif |
369 | int eventfd (unsigned int initval, int flags); |
419 | int (eventfd) (unsigned int initval, int flags); |
370 | # ifdef __cplusplus |
420 | # ifdef __cplusplus |
371 | } |
421 | } |
372 | # endif |
422 | # endif |
373 | #endif |
423 | #endif |
374 | |
424 | |
375 | #if EV_USE_SIGNALFD |
425 | #if EV_USE_SIGNALFD |
376 | # include <sys/signalfd.h> |
426 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
427 | # include <stdint.h> |
|
|
428 | # ifndef SFD_NONBLOCK |
|
|
429 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
430 | # endif |
|
|
431 | # ifndef SFD_CLOEXEC |
|
|
432 | # ifdef O_CLOEXEC |
|
|
433 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
434 | # else |
|
|
435 | # define SFD_CLOEXEC 02000000 |
|
|
436 | # endif |
|
|
437 | # endif |
|
|
438 | # ifdef __cplusplus |
|
|
439 | extern "C" { |
|
|
440 | # endif |
|
|
441 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
442 | |
|
|
443 | struct signalfd_siginfo |
|
|
444 | { |
|
|
445 | uint32_t ssi_signo; |
|
|
446 | char pad[128 - sizeof (uint32_t)]; |
|
|
447 | }; |
|
|
448 | # ifdef __cplusplus |
|
|
449 | } |
|
|
450 | # endif |
377 | #endif |
451 | #endif |
378 | |
452 | |
379 | /**/ |
453 | /**/ |
380 | |
454 | |
381 | #if EV_VERIFY >= 3 |
455 | #if EV_VERIFY >= 3 |
382 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
456 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
383 | #else |
457 | #else |
384 | # define EV_FREQUENT_CHECK do { } while (0) |
458 | # define EV_FREQUENT_CHECK do { } while (0) |
385 | #endif |
459 | #endif |
386 | |
460 | |
387 | /* |
461 | /* |
… | |
… | |
394 | */ |
468 | */ |
395 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
469 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
396 | |
470 | |
397 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
471 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
398 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
472 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
399 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
473 | |
|
|
474 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
475 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
400 | |
476 | |
401 | #if __GNUC__ >= 4 |
477 | #if __GNUC__ >= 4 |
402 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
478 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
403 | # define noinline __attribute__ ((noinline)) |
479 | # define noinline __attribute__ ((noinline)) |
404 | #else |
480 | #else |
… | |
… | |
411 | |
487 | |
412 | #define expect_false(expr) expect ((expr) != 0, 0) |
488 | #define expect_false(expr) expect ((expr) != 0, 0) |
413 | #define expect_true(expr) expect ((expr) != 0, 1) |
489 | #define expect_true(expr) expect ((expr) != 0, 1) |
414 | #define inline_size static inline |
490 | #define inline_size static inline |
415 | |
491 | |
416 | #if EV_MINIMAL |
492 | #if EV_FEATURE_CODE |
|
|
493 | # define inline_speed static inline |
|
|
494 | #else |
417 | # define inline_speed static noinline |
495 | # define inline_speed static noinline |
418 | #else |
|
|
419 | # define inline_speed static inline |
|
|
420 | #endif |
496 | #endif |
421 | |
497 | |
422 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
498 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
423 | |
499 | |
424 | #if EV_MINPRI == EV_MAXPRI |
500 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
437 | #define ev_active(w) ((W)(w))->active |
513 | #define ev_active(w) ((W)(w))->active |
438 | #define ev_at(w) ((WT)(w))->at |
514 | #define ev_at(w) ((WT)(w))->at |
439 | |
515 | |
440 | #if EV_USE_REALTIME |
516 | #if EV_USE_REALTIME |
441 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
517 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
442 | /* giving it a reasonably high chance of working on typical architetcures */ |
518 | /* giving it a reasonably high chance of working on typical architectures */ |
443 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
519 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
444 | #endif |
520 | #endif |
445 | |
521 | |
446 | #if EV_USE_MONOTONIC |
522 | #if EV_USE_MONOTONIC |
447 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
523 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
448 | #endif |
524 | #endif |
449 | |
525 | |
|
|
526 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
527 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
528 | #endif |
|
|
529 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
530 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
531 | #endif |
|
|
532 | #ifndef EV_WIN32_CLOSE_FD |
|
|
533 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
534 | #endif |
|
|
535 | |
450 | #ifdef _WIN32 |
536 | #ifdef _WIN32 |
451 | # include "ev_win32.c" |
537 | # include "ev_win32.c" |
452 | #endif |
538 | #endif |
453 | |
539 | |
454 | /*****************************************************************************/ |
540 | /*****************************************************************************/ |
|
|
541 | |
|
|
542 | #if EV_AVOID_STDIO |
|
|
543 | static void noinline |
|
|
544 | ev_printerr (const char *msg) |
|
|
545 | { |
|
|
546 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
547 | } |
|
|
548 | #endif |
455 | |
549 | |
456 | static void (*syserr_cb)(const char *msg); |
550 | static void (*syserr_cb)(const char *msg); |
457 | |
551 | |
458 | void |
552 | void |
459 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
553 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
469 | |
563 | |
470 | if (syserr_cb) |
564 | if (syserr_cb) |
471 | syserr_cb (msg); |
565 | syserr_cb (msg); |
472 | else |
566 | else |
473 | { |
567 | { |
|
|
568 | #if EV_AVOID_STDIO |
|
|
569 | const char *err = strerror (errno); |
|
|
570 | |
|
|
571 | ev_printerr (msg); |
|
|
572 | ev_printerr (": "); |
|
|
573 | ev_printerr (err); |
|
|
574 | ev_printerr ("\n"); |
|
|
575 | #else |
474 | perror (msg); |
576 | perror (msg); |
|
|
577 | #endif |
475 | abort (); |
578 | abort (); |
476 | } |
579 | } |
477 | } |
580 | } |
478 | |
581 | |
479 | static void * |
582 | static void * |
480 | ev_realloc_emul (void *ptr, long size) |
583 | ev_realloc_emul (void *ptr, long size) |
481 | { |
584 | { |
|
|
585 | #if __GLIBC__ |
|
|
586 | return realloc (ptr, size); |
|
|
587 | #else |
482 | /* some systems, notably openbsd and darwin, fail to properly |
588 | /* some systems, notably openbsd and darwin, fail to properly |
483 | * implement realloc (x, 0) (as required by both ansi c-98 and |
589 | * implement realloc (x, 0) (as required by both ansi c-89 and |
484 | * the single unix specification, so work around them here. |
590 | * the single unix specification, so work around them here. |
485 | */ |
591 | */ |
486 | |
592 | |
487 | if (size) |
593 | if (size) |
488 | return realloc (ptr, size); |
594 | return realloc (ptr, size); |
489 | |
595 | |
490 | free (ptr); |
596 | free (ptr); |
491 | return 0; |
597 | return 0; |
|
|
598 | #endif |
492 | } |
599 | } |
493 | |
600 | |
494 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
601 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
495 | |
602 | |
496 | void |
603 | void |
… | |
… | |
504 | { |
611 | { |
505 | ptr = alloc (ptr, size); |
612 | ptr = alloc (ptr, size); |
506 | |
613 | |
507 | if (!ptr && size) |
614 | if (!ptr && size) |
508 | { |
615 | { |
|
|
616 | #if EV_AVOID_STDIO |
|
|
617 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
618 | #else |
509 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
619 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
620 | #endif |
510 | abort (); |
621 | abort (); |
511 | } |
622 | } |
512 | |
623 | |
513 | return ptr; |
624 | return ptr; |
514 | } |
625 | } |
… | |
… | |
596 | |
707 | |
597 | static int ev_default_loop_ptr; |
708 | static int ev_default_loop_ptr; |
598 | |
709 | |
599 | #endif |
710 | #endif |
600 | |
711 | |
601 | #if EV_MINIMAL < 2 |
712 | #if EV_FEATURE_API |
602 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
713 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
603 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
714 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
604 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
715 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
605 | #else |
716 | #else |
606 | # define EV_RELEASE_CB (void)0 |
717 | # define EV_RELEASE_CB (void)0 |
607 | # define EV_ACQUIRE_CB (void)0 |
718 | # define EV_ACQUIRE_CB (void)0 |
608 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
719 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
609 | #endif |
720 | #endif |
610 | |
721 | |
611 | #define EVUNLOOP_RECURSE 0x80 |
722 | #define EVBREAK_RECURSE 0x80 |
612 | |
723 | |
613 | /*****************************************************************************/ |
724 | /*****************************************************************************/ |
614 | |
725 | |
615 | #ifndef EV_HAVE_EV_TIME |
726 | #ifndef EV_HAVE_EV_TIME |
616 | ev_tstamp |
727 | ev_tstamp |
… | |
… | |
660 | if (delay > 0.) |
771 | if (delay > 0.) |
661 | { |
772 | { |
662 | #if EV_USE_NANOSLEEP |
773 | #if EV_USE_NANOSLEEP |
663 | struct timespec ts; |
774 | struct timespec ts; |
664 | |
775 | |
665 | ts.tv_sec = (time_t)delay; |
776 | EV_TS_SET (ts, delay); |
666 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
667 | |
|
|
668 | nanosleep (&ts, 0); |
777 | nanosleep (&ts, 0); |
669 | #elif defined(_WIN32) |
778 | #elif defined(_WIN32) |
670 | Sleep ((unsigned long)(delay * 1e3)); |
779 | Sleep ((unsigned long)(delay * 1e3)); |
671 | #else |
780 | #else |
672 | struct timeval tv; |
781 | struct timeval tv; |
673 | |
782 | |
674 | tv.tv_sec = (time_t)delay; |
|
|
675 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
676 | |
|
|
677 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
783 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
678 | /* something not guaranteed by newer posix versions, but guaranteed */ |
784 | /* something not guaranteed by newer posix versions, but guaranteed */ |
679 | /* by older ones */ |
785 | /* by older ones */ |
|
|
786 | EV_TV_SET (tv, delay); |
680 | select (0, 0, 0, 0, &tv); |
787 | select (0, 0, 0, 0, &tv); |
681 | #endif |
788 | #endif |
682 | } |
789 | } |
683 | } |
790 | } |
684 | |
791 | |
685 | /*****************************************************************************/ |
792 | /*****************************************************************************/ |
686 | |
793 | |
687 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
794 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
688 | |
795 | |
689 | /* find a suitable new size for the given array, */ |
796 | /* find a suitable new size for the given array, */ |
690 | /* hopefully by rounding to a ncie-to-malloc size */ |
797 | /* hopefully by rounding to a nice-to-malloc size */ |
691 | inline_size int |
798 | inline_size int |
692 | array_nextsize (int elem, int cur, int cnt) |
799 | array_nextsize (int elem, int cur, int cnt) |
693 | { |
800 | { |
694 | int ncur = cur + 1; |
801 | int ncur = cur + 1; |
695 | |
802 | |
… | |
… | |
791 | } |
898 | } |
792 | |
899 | |
793 | /*****************************************************************************/ |
900 | /*****************************************************************************/ |
794 | |
901 | |
795 | inline_speed void |
902 | inline_speed void |
796 | fd_event_nc (EV_P_ int fd, int revents) |
903 | fd_event_nocheck (EV_P_ int fd, int revents) |
797 | { |
904 | { |
798 | ANFD *anfd = anfds + fd; |
905 | ANFD *anfd = anfds + fd; |
799 | ev_io *w; |
906 | ev_io *w; |
800 | |
907 | |
801 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
908 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
813 | fd_event (EV_P_ int fd, int revents) |
920 | fd_event (EV_P_ int fd, int revents) |
814 | { |
921 | { |
815 | ANFD *anfd = anfds + fd; |
922 | ANFD *anfd = anfds + fd; |
816 | |
923 | |
817 | if (expect_true (!anfd->reify)) |
924 | if (expect_true (!anfd->reify)) |
818 | fd_event_nc (EV_A_ fd, revents); |
925 | fd_event_nocheck (EV_A_ fd, revents); |
819 | } |
926 | } |
820 | |
927 | |
821 | void |
928 | void |
822 | ev_feed_fd_event (EV_P_ int fd, int revents) |
929 | ev_feed_fd_event (EV_P_ int fd, int revents) |
823 | { |
930 | { |
824 | if (fd >= 0 && fd < anfdmax) |
931 | if (fd >= 0 && fd < anfdmax) |
825 | fd_event_nc (EV_A_ fd, revents); |
932 | fd_event_nocheck (EV_A_ fd, revents); |
826 | } |
933 | } |
827 | |
934 | |
828 | /* make sure the external fd watch events are in-sync */ |
935 | /* make sure the external fd watch events are in-sync */ |
829 | /* with the kernel/libev internal state */ |
936 | /* with the kernel/libev internal state */ |
830 | inline_size void |
937 | inline_size void |
… | |
… | |
836 | { |
943 | { |
837 | int fd = fdchanges [i]; |
944 | int fd = fdchanges [i]; |
838 | ANFD *anfd = anfds + fd; |
945 | ANFD *anfd = anfds + fd; |
839 | ev_io *w; |
946 | ev_io *w; |
840 | |
947 | |
841 | unsigned char events = 0; |
948 | unsigned char o_events = anfd->events; |
|
|
949 | unsigned char o_reify = anfd->reify; |
842 | |
950 | |
843 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
951 | anfd->reify = 0; |
844 | events |= (unsigned char)w->events; |
|
|
845 | |
952 | |
846 | #if EV_SELECT_IS_WINSOCKET |
953 | #if EV_SELECT_IS_WINSOCKET |
847 | if (events) |
954 | if (o_reify & EV__IOFDSET) |
848 | { |
955 | { |
849 | unsigned long arg; |
956 | unsigned long arg; |
850 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
851 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
957 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
852 | #else |
|
|
853 | anfd->handle = _get_osfhandle (fd); |
|
|
854 | #endif |
|
|
855 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
958 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
856 | } |
959 | } |
857 | #endif |
960 | #endif |
858 | |
961 | |
|
|
962 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
859 | { |
963 | { |
860 | unsigned char o_events = anfd->events; |
|
|
861 | unsigned char o_reify = anfd->reify; |
|
|
862 | |
|
|
863 | anfd->reify = 0; |
|
|
864 | anfd->events = events; |
964 | anfd->events = 0; |
865 | |
965 | |
866 | if (o_events != events || o_reify & EV__IOFDSET) |
966 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
967 | anfd->events |= (unsigned char)w->events; |
|
|
968 | |
|
|
969 | if (o_events != anfd->events) |
|
|
970 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
971 | } |
|
|
972 | |
|
|
973 | if (o_reify & EV__IOFDSET) |
867 | backend_modify (EV_A_ fd, o_events, events); |
974 | backend_modify (EV_A_ fd, o_events, anfd->events); |
868 | } |
|
|
869 | } |
975 | } |
870 | |
976 | |
871 | fdchangecnt = 0; |
977 | fdchangecnt = 0; |
872 | } |
978 | } |
873 | |
979 | |
… | |
… | |
897 | ev_io_stop (EV_A_ w); |
1003 | ev_io_stop (EV_A_ w); |
898 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1004 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
899 | } |
1005 | } |
900 | } |
1006 | } |
901 | |
1007 | |
902 | /* check whether the given fd is atcually valid, for error recovery */ |
1008 | /* check whether the given fd is actually valid, for error recovery */ |
903 | inline_size int |
1009 | inline_size int |
904 | fd_valid (int fd) |
1010 | fd_valid (int fd) |
905 | { |
1011 | { |
906 | #ifdef _WIN32 |
1012 | #ifdef _WIN32 |
907 | return _get_osfhandle (fd) != -1; |
1013 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
908 | #else |
1014 | #else |
909 | return fcntl (fd, F_GETFD) != -1; |
1015 | return fcntl (fd, F_GETFD) != -1; |
910 | #endif |
1016 | #endif |
911 | } |
1017 | } |
912 | |
1018 | |
… | |
… | |
930 | |
1036 | |
931 | for (fd = anfdmax; fd--; ) |
1037 | for (fd = anfdmax; fd--; ) |
932 | if (anfds [fd].events) |
1038 | if (anfds [fd].events) |
933 | { |
1039 | { |
934 | fd_kill (EV_A_ fd); |
1040 | fd_kill (EV_A_ fd); |
935 | return; |
1041 | break; |
936 | } |
1042 | } |
937 | } |
1043 | } |
938 | |
1044 | |
939 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1045 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
940 | static void noinline |
1046 | static void noinline |
… | |
… | |
949 | anfds [fd].emask = 0; |
1055 | anfds [fd].emask = 0; |
950 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
1056 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
951 | } |
1057 | } |
952 | } |
1058 | } |
953 | |
1059 | |
|
|
1060 | /* used to prepare libev internal fd's */ |
|
|
1061 | /* this is not fork-safe */ |
|
|
1062 | inline_speed void |
|
|
1063 | fd_intern (int fd) |
|
|
1064 | { |
|
|
1065 | #ifdef _WIN32 |
|
|
1066 | unsigned long arg = 1; |
|
|
1067 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1068 | #else |
|
|
1069 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1070 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1071 | #endif |
|
|
1072 | } |
|
|
1073 | |
954 | /*****************************************************************************/ |
1074 | /*****************************************************************************/ |
955 | |
1075 | |
956 | /* |
1076 | /* |
957 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1077 | * the heap functions want a real array index. array index 0 is guaranteed to not |
958 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1078 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
959 | * the branching factor of the d-tree. |
1079 | * the branching factor of the d-tree. |
960 | */ |
1080 | */ |
961 | |
1081 | |
962 | /* |
1082 | /* |
… | |
… | |
1030 | |
1150 | |
1031 | for (;;) |
1151 | for (;;) |
1032 | { |
1152 | { |
1033 | int c = k << 1; |
1153 | int c = k << 1; |
1034 | |
1154 | |
1035 | if (c > N + HEAP0 - 1) |
1155 | if (c >= N + HEAP0) |
1036 | break; |
1156 | break; |
1037 | |
1157 | |
1038 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1158 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1039 | ? 1 : 0; |
1159 | ? 1 : 0; |
1040 | |
1160 | |
… | |
… | |
1076 | |
1196 | |
1077 | /* move an element suitably so it is in a correct place */ |
1197 | /* move an element suitably so it is in a correct place */ |
1078 | inline_size void |
1198 | inline_size void |
1079 | adjustheap (ANHE *heap, int N, int k) |
1199 | adjustheap (ANHE *heap, int N, int k) |
1080 | { |
1200 | { |
1081 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1201 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1082 | upheap (heap, k); |
1202 | upheap (heap, k); |
1083 | else |
1203 | else |
1084 | downheap (heap, N, k); |
1204 | downheap (heap, N, k); |
1085 | } |
1205 | } |
1086 | |
1206 | |
… | |
… | |
1099 | /*****************************************************************************/ |
1219 | /*****************************************************************************/ |
1100 | |
1220 | |
1101 | /* associate signal watchers to a signal signal */ |
1221 | /* associate signal watchers to a signal signal */ |
1102 | typedef struct |
1222 | typedef struct |
1103 | { |
1223 | { |
|
|
1224 | EV_ATOMIC_T pending; |
|
|
1225 | #if EV_MULTIPLICITY |
|
|
1226 | EV_P; |
|
|
1227 | #endif |
1104 | WL head; |
1228 | WL head; |
1105 | EV_ATOMIC_T gotsig; |
|
|
1106 | } ANSIG; |
1229 | } ANSIG; |
1107 | |
1230 | |
1108 | static ANSIG *signals; |
1231 | static ANSIG signals [EV_NSIG - 1]; |
1109 | static int signalmax; |
|
|
1110 | |
|
|
1111 | static EV_ATOMIC_T gotsig; |
|
|
1112 | |
1232 | |
1113 | /*****************************************************************************/ |
1233 | /*****************************************************************************/ |
1114 | |
1234 | |
1115 | /* used to prepare libev internal fd's */ |
1235 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1116 | /* this is not fork-safe */ |
|
|
1117 | inline_speed void |
|
|
1118 | fd_intern (int fd) |
|
|
1119 | { |
|
|
1120 | #ifdef _WIN32 |
|
|
1121 | unsigned long arg = 1; |
|
|
1122 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1123 | #else |
|
|
1124 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1125 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1126 | #endif |
|
|
1127 | } |
|
|
1128 | |
1236 | |
1129 | static void noinline |
1237 | static void noinline |
1130 | evpipe_init (EV_P) |
1238 | evpipe_init (EV_P) |
1131 | { |
1239 | { |
1132 | if (!ev_is_active (&pipe_w)) |
1240 | if (!ev_is_active (&pipe_w)) |
1133 | { |
1241 | { |
1134 | #if EV_USE_EVENTFD |
1242 | # if EV_USE_EVENTFD |
1135 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1243 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1136 | if (evfd < 0 && errno == EINVAL) |
1244 | if (evfd < 0 && errno == EINVAL) |
1137 | evfd = eventfd (0, 0); |
1245 | evfd = eventfd (0, 0); |
1138 | |
1246 | |
1139 | if (evfd >= 0) |
1247 | if (evfd >= 0) |
… | |
… | |
1141 | evpipe [0] = -1; |
1249 | evpipe [0] = -1; |
1142 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1250 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1143 | ev_io_set (&pipe_w, evfd, EV_READ); |
1251 | ev_io_set (&pipe_w, evfd, EV_READ); |
1144 | } |
1252 | } |
1145 | else |
1253 | else |
1146 | #endif |
1254 | # endif |
1147 | { |
1255 | { |
1148 | while (pipe (evpipe)) |
1256 | while (pipe (evpipe)) |
1149 | ev_syserr ("(libev) error creating signal/async pipe"); |
1257 | ev_syserr ("(libev) error creating signal/async pipe"); |
1150 | |
1258 | |
1151 | fd_intern (evpipe [0]); |
1259 | fd_intern (evpipe [0]); |
… | |
… | |
1162 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1270 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1163 | { |
1271 | { |
1164 | if (!*flag) |
1272 | if (!*flag) |
1165 | { |
1273 | { |
1166 | int old_errno = errno; /* save errno because write might clobber it */ |
1274 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1275 | char dummy; |
1167 | |
1276 | |
1168 | *flag = 1; |
1277 | *flag = 1; |
1169 | |
1278 | |
1170 | #if EV_USE_EVENTFD |
1279 | #if EV_USE_EVENTFD |
1171 | if (evfd >= 0) |
1280 | if (evfd >= 0) |
… | |
… | |
1173 | uint64_t counter = 1; |
1282 | uint64_t counter = 1; |
1174 | write (evfd, &counter, sizeof (uint64_t)); |
1283 | write (evfd, &counter, sizeof (uint64_t)); |
1175 | } |
1284 | } |
1176 | else |
1285 | else |
1177 | #endif |
1286 | #endif |
|
|
1287 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1288 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1289 | /* so when you think this write should be a send instead, please find out */ |
|
|
1290 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1291 | /* tell me. thank you. */ |
1178 | write (evpipe [1], &old_errno, 1); |
1292 | write (evpipe [1], &dummy, 1); |
1179 | |
1293 | |
1180 | errno = old_errno; |
1294 | errno = old_errno; |
1181 | } |
1295 | } |
1182 | } |
1296 | } |
1183 | |
1297 | |
1184 | /* called whenever the libev signal pipe */ |
1298 | /* called whenever the libev signal pipe */ |
1185 | /* got some events (signal, async) */ |
1299 | /* got some events (signal, async) */ |
1186 | static void |
1300 | static void |
1187 | pipecb (EV_P_ ev_io *iow, int revents) |
1301 | pipecb (EV_P_ ev_io *iow, int revents) |
1188 | { |
1302 | { |
|
|
1303 | int i; |
|
|
1304 | |
1189 | #if EV_USE_EVENTFD |
1305 | #if EV_USE_EVENTFD |
1190 | if (evfd >= 0) |
1306 | if (evfd >= 0) |
1191 | { |
1307 | { |
1192 | uint64_t counter; |
1308 | uint64_t counter; |
1193 | read (evfd, &counter, sizeof (uint64_t)); |
1309 | read (evfd, &counter, sizeof (uint64_t)); |
1194 | } |
1310 | } |
1195 | else |
1311 | else |
1196 | #endif |
1312 | #endif |
1197 | { |
1313 | { |
1198 | char dummy; |
1314 | char dummy; |
|
|
1315 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1199 | read (evpipe [0], &dummy, 1); |
1316 | read (evpipe [0], &dummy, 1); |
1200 | } |
1317 | } |
1201 | |
1318 | |
1202 | if (gotsig && ev_is_default_loop (EV_A)) |
1319 | if (sig_pending) |
1203 | { |
1320 | { |
1204 | int signum; |
1321 | sig_pending = 0; |
1205 | gotsig = 0; |
|
|
1206 | |
1322 | |
1207 | for (signum = signalmax; signum--; ) |
1323 | for (i = EV_NSIG - 1; i--; ) |
1208 | if (signals [signum].gotsig) |
1324 | if (expect_false (signals [i].pending)) |
1209 | ev_feed_signal_event (EV_A_ signum + 1); |
1325 | ev_feed_signal_event (EV_A_ i + 1); |
1210 | } |
1326 | } |
1211 | |
1327 | |
1212 | #if EV_ASYNC_ENABLE |
1328 | #if EV_ASYNC_ENABLE |
1213 | if (gotasync) |
1329 | if (async_pending) |
1214 | { |
1330 | { |
1215 | int i; |
1331 | async_pending = 0; |
1216 | gotasync = 0; |
|
|
1217 | |
1332 | |
1218 | for (i = asynccnt; i--; ) |
1333 | for (i = asynccnt; i--; ) |
1219 | if (asyncs [i]->sent) |
1334 | if (asyncs [i]->sent) |
1220 | { |
1335 | { |
1221 | asyncs [i]->sent = 0; |
1336 | asyncs [i]->sent = 0; |
… | |
… | |
1229 | |
1344 | |
1230 | static void |
1345 | static void |
1231 | ev_sighandler (int signum) |
1346 | ev_sighandler (int signum) |
1232 | { |
1347 | { |
1233 | #if EV_MULTIPLICITY |
1348 | #if EV_MULTIPLICITY |
1234 | struct ev_loop *loop = &default_loop_struct; |
1349 | EV_P = signals [signum - 1].loop; |
1235 | #endif |
1350 | #endif |
1236 | |
1351 | |
1237 | #if _WIN32 |
1352 | #ifdef _WIN32 |
1238 | signal (signum, ev_sighandler); |
1353 | signal (signum, ev_sighandler); |
1239 | #endif |
1354 | #endif |
1240 | |
1355 | |
1241 | signals [signum - 1].gotsig = 1; |
1356 | signals [signum - 1].pending = 1; |
1242 | evpipe_write (EV_A_ &gotsig); |
1357 | evpipe_write (EV_A_ &sig_pending); |
1243 | } |
1358 | } |
1244 | |
1359 | |
1245 | void noinline |
1360 | void noinline |
1246 | ev_feed_signal_event (EV_P_ int signum) |
1361 | ev_feed_signal_event (EV_P_ int signum) |
1247 | { |
1362 | { |
1248 | WL w; |
1363 | WL w; |
1249 | |
1364 | |
|
|
1365 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1366 | return; |
|
|
1367 | |
|
|
1368 | --signum; |
|
|
1369 | |
1250 | #if EV_MULTIPLICITY |
1370 | #if EV_MULTIPLICITY |
1251 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1371 | /* it is permissible to try to feed a signal to the wrong loop */ |
1252 | #endif |
1372 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1253 | |
1373 | |
1254 | --signum; |
1374 | if (expect_false (signals [signum].loop != EV_A)) |
1255 | |
|
|
1256 | if (signum < 0 || signum >= signalmax) |
|
|
1257 | return; |
1375 | return; |
|
|
1376 | #endif |
1258 | |
1377 | |
1259 | signals [signum].gotsig = 0; |
1378 | signals [signum].pending = 0; |
1260 | |
1379 | |
1261 | for (w = signals [signum].head; w; w = w->next) |
1380 | for (w = signals [signum].head; w; w = w->next) |
1262 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1381 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1263 | } |
1382 | } |
1264 | |
1383 | |
1265 | #if EV_USE_SIGNALFD |
1384 | #if EV_USE_SIGNALFD |
1266 | static void |
1385 | static void |
1267 | sigfdcb (EV_P_ ev_io *iow, int revents) |
1386 | sigfdcb (EV_P_ ev_io *iow, int revents) |
1268 | { |
1387 | { |
1269 | struct signalfd_siginfo si[4], *sip; |
1388 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
1270 | |
1389 | |
1271 | for (;;) |
1390 | for (;;) |
1272 | { |
1391 | { |
1273 | ssize_t res = read (sigfd, si, sizeof (si)); |
1392 | ssize_t res = read (sigfd, si, sizeof (si)); |
1274 | |
1393 | |
… | |
… | |
1280 | break; |
1399 | break; |
1281 | } |
1400 | } |
1282 | } |
1401 | } |
1283 | #endif |
1402 | #endif |
1284 | |
1403 | |
|
|
1404 | #endif |
|
|
1405 | |
1285 | /*****************************************************************************/ |
1406 | /*****************************************************************************/ |
1286 | |
1407 | |
|
|
1408 | #if EV_CHILD_ENABLE |
1287 | static WL childs [EV_PID_HASHSIZE]; |
1409 | static WL childs [EV_PID_HASHSIZE]; |
1288 | |
|
|
1289 | #ifndef _WIN32 |
|
|
1290 | |
1410 | |
1291 | static ev_signal childev; |
1411 | static ev_signal childev; |
1292 | |
1412 | |
1293 | #ifndef WIFCONTINUED |
1413 | #ifndef WIFCONTINUED |
1294 | # define WIFCONTINUED(status) 0 |
1414 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1299 | child_reap (EV_P_ int chain, int pid, int status) |
1419 | child_reap (EV_P_ int chain, int pid, int status) |
1300 | { |
1420 | { |
1301 | ev_child *w; |
1421 | ev_child *w; |
1302 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1422 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1303 | |
1423 | |
1304 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1424 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1305 | { |
1425 | { |
1306 | if ((w->pid == pid || !w->pid) |
1426 | if ((w->pid == pid || !w->pid) |
1307 | && (!traced || (w->flags & 1))) |
1427 | && (!traced || (w->flags & 1))) |
1308 | { |
1428 | { |
1309 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1429 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1334 | /* make sure we are called again until all children have been reaped */ |
1454 | /* make sure we are called again until all children have been reaped */ |
1335 | /* we need to do it this way so that the callback gets called before we continue */ |
1455 | /* we need to do it this way so that the callback gets called before we continue */ |
1336 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1456 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1337 | |
1457 | |
1338 | child_reap (EV_A_ pid, pid, status); |
1458 | child_reap (EV_A_ pid, pid, status); |
1339 | if (EV_PID_HASHSIZE > 1) |
1459 | if ((EV_PID_HASHSIZE) > 1) |
1340 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1460 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1341 | } |
1461 | } |
1342 | |
1462 | |
1343 | #endif |
1463 | #endif |
1344 | |
1464 | |
… | |
… | |
1411 | #ifdef __APPLE__ |
1531 | #ifdef __APPLE__ |
1412 | /* only select works correctly on that "unix-certified" platform */ |
1532 | /* only select works correctly on that "unix-certified" platform */ |
1413 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1533 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1414 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1534 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1415 | #endif |
1535 | #endif |
|
|
1536 | #ifdef __FreeBSD__ |
|
|
1537 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1538 | #endif |
1416 | |
1539 | |
1417 | return flags; |
1540 | return flags; |
1418 | } |
1541 | } |
1419 | |
1542 | |
1420 | unsigned int |
1543 | unsigned int |
… | |
… | |
1433 | ev_backend (EV_P) |
1556 | ev_backend (EV_P) |
1434 | { |
1557 | { |
1435 | return backend; |
1558 | return backend; |
1436 | } |
1559 | } |
1437 | |
1560 | |
1438 | #if EV_MINIMAL < 2 |
1561 | #if EV_FEATURE_API |
1439 | unsigned int |
1562 | unsigned int |
1440 | ev_loop_count (EV_P) |
1563 | ev_iteration (EV_P) |
1441 | { |
1564 | { |
1442 | return loop_count; |
1565 | return loop_count; |
1443 | } |
1566 | } |
1444 | |
1567 | |
1445 | unsigned int |
1568 | unsigned int |
1446 | ev_loop_depth (EV_P) |
1569 | ev_depth (EV_P) |
1447 | { |
1570 | { |
1448 | return loop_depth; |
1571 | return loop_depth; |
1449 | } |
1572 | } |
1450 | |
1573 | |
1451 | void |
1574 | void |
… | |
… | |
1508 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1631 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1509 | have_monotonic = 1; |
1632 | have_monotonic = 1; |
1510 | } |
1633 | } |
1511 | #endif |
1634 | #endif |
1512 | |
1635 | |
|
|
1636 | /* pid check not overridable via env */ |
|
|
1637 | #ifndef _WIN32 |
|
|
1638 | if (flags & EVFLAG_FORKCHECK) |
|
|
1639 | curpid = getpid (); |
|
|
1640 | #endif |
|
|
1641 | |
|
|
1642 | if (!(flags & EVFLAG_NOENV) |
|
|
1643 | && !enable_secure () |
|
|
1644 | && getenv ("LIBEV_FLAGS")) |
|
|
1645 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1646 | |
1513 | ev_rt_now = ev_time (); |
1647 | ev_rt_now = ev_time (); |
1514 | mn_now = get_clock (); |
1648 | mn_now = get_clock (); |
1515 | now_floor = mn_now; |
1649 | now_floor = mn_now; |
1516 | rtmn_diff = ev_rt_now - mn_now; |
1650 | rtmn_diff = ev_rt_now - mn_now; |
1517 | #if EV_MINIMAL < 2 |
1651 | #if EV_FEATURE_API |
1518 | invoke_cb = ev_invoke_pending; |
1652 | invoke_cb = ev_invoke_pending; |
1519 | #endif |
1653 | #endif |
1520 | |
1654 | |
1521 | io_blocktime = 0.; |
1655 | io_blocktime = 0.; |
1522 | timeout_blocktime = 0.; |
1656 | timeout_blocktime = 0.; |
1523 | backend = 0; |
1657 | backend = 0; |
1524 | backend_fd = -1; |
1658 | backend_fd = -1; |
1525 | gotasync = 0; |
1659 | sig_pending = 0; |
|
|
1660 | #if EV_ASYNC_ENABLE |
|
|
1661 | async_pending = 0; |
|
|
1662 | #endif |
1526 | #if EV_USE_INOTIFY |
1663 | #if EV_USE_INOTIFY |
1527 | fs_fd = -2; |
1664 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1528 | #endif |
1665 | #endif |
1529 | #if EV_USE_SIGNALFD |
1666 | #if EV_USE_SIGNALFD |
1530 | sigfd = -2; |
1667 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1531 | #endif |
1668 | #endif |
1532 | |
|
|
1533 | /* pid check not overridable via env */ |
|
|
1534 | #ifndef _WIN32 |
|
|
1535 | if (flags & EVFLAG_FORKCHECK) |
|
|
1536 | curpid = getpid (); |
|
|
1537 | #endif |
|
|
1538 | |
|
|
1539 | if (!(flags & EVFLAG_NOENV) |
|
|
1540 | && !enable_secure () |
|
|
1541 | && getenv ("LIBEV_FLAGS")) |
|
|
1542 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1543 | |
1669 | |
1544 | if (!(flags & 0x0000ffffU)) |
1670 | if (!(flags & 0x0000ffffU)) |
1545 | flags |= ev_recommended_backends (); |
1671 | flags |= ev_recommended_backends (); |
1546 | |
1672 | |
1547 | #if EV_USE_PORT |
1673 | #if EV_USE_PORT |
… | |
… | |
1560 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1686 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1561 | #endif |
1687 | #endif |
1562 | |
1688 | |
1563 | ev_prepare_init (&pending_w, pendingcb); |
1689 | ev_prepare_init (&pending_w, pendingcb); |
1564 | |
1690 | |
|
|
1691 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1565 | ev_init (&pipe_w, pipecb); |
1692 | ev_init (&pipe_w, pipecb); |
1566 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1693 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1694 | #endif |
1567 | } |
1695 | } |
1568 | } |
1696 | } |
1569 | |
1697 | |
1570 | /* free up a loop structure */ |
1698 | /* free up a loop structure */ |
1571 | static void noinline |
1699 | static void noinline |
… | |
… | |
1583 | close (evfd); |
1711 | close (evfd); |
1584 | #endif |
1712 | #endif |
1585 | |
1713 | |
1586 | if (evpipe [0] >= 0) |
1714 | if (evpipe [0] >= 0) |
1587 | { |
1715 | { |
1588 | close (evpipe [0]); |
1716 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1589 | close (evpipe [1]); |
1717 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1590 | } |
1718 | } |
1591 | } |
1719 | } |
1592 | |
1720 | |
1593 | #if EV_USE_SIGNALFD |
1721 | #if EV_USE_SIGNALFD |
1594 | if (ev_is_active (&sigfd_w)) |
1722 | if (ev_is_active (&sigfd_w)) |
1595 | { |
|
|
1596 | /*ev_ref (EV_A);*/ |
|
|
1597 | /*ev_io_stop (EV_A_ &sigfd_w);*/ |
|
|
1598 | |
|
|
1599 | close (sigfd); |
1723 | close (sigfd); |
1600 | } |
|
|
1601 | #endif |
1724 | #endif |
1602 | |
1725 | |
1603 | #if EV_USE_INOTIFY |
1726 | #if EV_USE_INOTIFY |
1604 | if (fs_fd >= 0) |
1727 | if (fs_fd >= 0) |
1605 | close (fs_fd); |
1728 | close (fs_fd); |
… | |
… | |
1630 | #if EV_IDLE_ENABLE |
1753 | #if EV_IDLE_ENABLE |
1631 | array_free (idle, [i]); |
1754 | array_free (idle, [i]); |
1632 | #endif |
1755 | #endif |
1633 | } |
1756 | } |
1634 | |
1757 | |
1635 | ev_free (anfds); anfdmax = 0; |
1758 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1636 | |
1759 | |
1637 | /* have to use the microsoft-never-gets-it-right macro */ |
1760 | /* have to use the microsoft-never-gets-it-right macro */ |
1638 | array_free (rfeed, EMPTY); |
1761 | array_free (rfeed, EMPTY); |
1639 | array_free (fdchange, EMPTY); |
1762 | array_free (fdchange, EMPTY); |
1640 | array_free (timer, EMPTY); |
1763 | array_free (timer, EMPTY); |
… | |
… | |
1675 | |
1798 | |
1676 | if (ev_is_active (&pipe_w)) |
1799 | if (ev_is_active (&pipe_w)) |
1677 | { |
1800 | { |
1678 | /* this "locks" the handlers against writing to the pipe */ |
1801 | /* this "locks" the handlers against writing to the pipe */ |
1679 | /* while we modify the fd vars */ |
1802 | /* while we modify the fd vars */ |
1680 | gotsig = 1; |
1803 | sig_pending = 1; |
1681 | #if EV_ASYNC_ENABLE |
1804 | #if EV_ASYNC_ENABLE |
1682 | gotasync = 1; |
1805 | async_pending = 1; |
1683 | #endif |
1806 | #endif |
1684 | |
1807 | |
1685 | ev_ref (EV_A); |
1808 | ev_ref (EV_A); |
1686 | ev_io_stop (EV_A_ &pipe_w); |
1809 | ev_io_stop (EV_A_ &pipe_w); |
1687 | |
1810 | |
… | |
… | |
1690 | close (evfd); |
1813 | close (evfd); |
1691 | #endif |
1814 | #endif |
1692 | |
1815 | |
1693 | if (evpipe [0] >= 0) |
1816 | if (evpipe [0] >= 0) |
1694 | { |
1817 | { |
1695 | close (evpipe [0]); |
1818 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1696 | close (evpipe [1]); |
1819 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1697 | } |
1820 | } |
1698 | |
1821 | |
|
|
1822 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1699 | evpipe_init (EV_A); |
1823 | evpipe_init (EV_A); |
1700 | /* now iterate over everything, in case we missed something */ |
1824 | /* now iterate over everything, in case we missed something */ |
1701 | pipecb (EV_A_ &pipe_w, EV_READ); |
1825 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1826 | #endif |
1702 | } |
1827 | } |
1703 | |
1828 | |
1704 | postfork = 0; |
1829 | postfork = 0; |
1705 | } |
1830 | } |
1706 | |
1831 | |
1707 | #if EV_MULTIPLICITY |
1832 | #if EV_MULTIPLICITY |
1708 | |
1833 | |
1709 | struct ev_loop * |
1834 | struct ev_loop * |
1710 | ev_loop_new (unsigned int flags) |
1835 | ev_loop_new (unsigned int flags) |
1711 | { |
1836 | { |
1712 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1837 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1713 | |
1838 | |
1714 | memset (loop, 0, sizeof (struct ev_loop)); |
1839 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1715 | loop_init (EV_A_ flags); |
1840 | loop_init (EV_A_ flags); |
1716 | |
1841 | |
1717 | if (ev_backend (EV_A)) |
1842 | if (ev_backend (EV_A)) |
1718 | return loop; |
1843 | return EV_A; |
1719 | |
1844 | |
1720 | return 0; |
1845 | return 0; |
1721 | } |
1846 | } |
1722 | |
1847 | |
1723 | void |
1848 | void |
… | |
… | |
1768 | verify_watcher (EV_A_ ws [cnt]); |
1893 | verify_watcher (EV_A_ ws [cnt]); |
1769 | } |
1894 | } |
1770 | } |
1895 | } |
1771 | #endif |
1896 | #endif |
1772 | |
1897 | |
1773 | #if EV_MINIMAL < 2 |
1898 | #if EV_FEATURE_API |
1774 | void |
1899 | void |
1775 | ev_loop_verify (EV_P) |
1900 | ev_verify (EV_P) |
1776 | { |
1901 | { |
1777 | #if EV_VERIFY |
1902 | #if EV_VERIFY |
1778 | int i; |
1903 | int i; |
1779 | WL w; |
1904 | WL w; |
1780 | |
1905 | |
… | |
… | |
1819 | #if EV_ASYNC_ENABLE |
1944 | #if EV_ASYNC_ENABLE |
1820 | assert (asyncmax >= asynccnt); |
1945 | assert (asyncmax >= asynccnt); |
1821 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1946 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1822 | #endif |
1947 | #endif |
1823 | |
1948 | |
|
|
1949 | #if EV_PREPARE_ENABLE |
1824 | assert (preparemax >= preparecnt); |
1950 | assert (preparemax >= preparecnt); |
1825 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1951 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1952 | #endif |
1826 | |
1953 | |
|
|
1954 | #if EV_CHECK_ENABLE |
1827 | assert (checkmax >= checkcnt); |
1955 | assert (checkmax >= checkcnt); |
1828 | array_verify (EV_A_ (W *)checks, checkcnt); |
1956 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1957 | #endif |
1829 | |
1958 | |
1830 | # if 0 |
1959 | # if 0 |
|
|
1960 | #if EV_CHILD_ENABLE |
1831 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1961 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1832 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1962 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1963 | #endif |
1833 | # endif |
1964 | # endif |
1834 | #endif |
1965 | #endif |
1835 | } |
1966 | } |
1836 | #endif |
1967 | #endif |
1837 | |
1968 | |
… | |
… | |
1844 | #endif |
1975 | #endif |
1845 | { |
1976 | { |
1846 | if (!ev_default_loop_ptr) |
1977 | if (!ev_default_loop_ptr) |
1847 | { |
1978 | { |
1848 | #if EV_MULTIPLICITY |
1979 | #if EV_MULTIPLICITY |
1849 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1980 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1850 | #else |
1981 | #else |
1851 | ev_default_loop_ptr = 1; |
1982 | ev_default_loop_ptr = 1; |
1852 | #endif |
1983 | #endif |
1853 | |
1984 | |
1854 | loop_init (EV_A_ flags); |
1985 | loop_init (EV_A_ flags); |
1855 | |
1986 | |
1856 | if (ev_backend (EV_A)) |
1987 | if (ev_backend (EV_A)) |
1857 | { |
1988 | { |
1858 | #ifndef _WIN32 |
1989 | #if EV_CHILD_ENABLE |
1859 | ev_signal_init (&childev, childcb, SIGCHLD); |
1990 | ev_signal_init (&childev, childcb, SIGCHLD); |
1860 | ev_set_priority (&childev, EV_MAXPRI); |
1991 | ev_set_priority (&childev, EV_MAXPRI); |
1861 | ev_signal_start (EV_A_ &childev); |
1992 | ev_signal_start (EV_A_ &childev); |
1862 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1993 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1863 | #endif |
1994 | #endif |
… | |
… | |
1871 | |
2002 | |
1872 | void |
2003 | void |
1873 | ev_default_destroy (void) |
2004 | ev_default_destroy (void) |
1874 | { |
2005 | { |
1875 | #if EV_MULTIPLICITY |
2006 | #if EV_MULTIPLICITY |
1876 | struct ev_loop *loop = ev_default_loop_ptr; |
2007 | EV_P = ev_default_loop_ptr; |
1877 | #endif |
2008 | #endif |
1878 | |
2009 | |
1879 | ev_default_loop_ptr = 0; |
2010 | ev_default_loop_ptr = 0; |
1880 | |
2011 | |
1881 | #ifndef _WIN32 |
2012 | #if EV_CHILD_ENABLE |
1882 | ev_ref (EV_A); /* child watcher */ |
2013 | ev_ref (EV_A); /* child watcher */ |
1883 | ev_signal_stop (EV_A_ &childev); |
2014 | ev_signal_stop (EV_A_ &childev); |
1884 | #endif |
2015 | #endif |
1885 | |
2016 | |
1886 | loop_destroy (EV_A); |
2017 | loop_destroy (EV_A); |
… | |
… | |
1888 | |
2019 | |
1889 | void |
2020 | void |
1890 | ev_default_fork (void) |
2021 | ev_default_fork (void) |
1891 | { |
2022 | { |
1892 | #if EV_MULTIPLICITY |
2023 | #if EV_MULTIPLICITY |
1893 | struct ev_loop *loop = ev_default_loop_ptr; |
2024 | EV_P = ev_default_loop_ptr; |
1894 | #endif |
2025 | #endif |
1895 | |
2026 | |
1896 | postfork = 1; /* must be in line with ev_loop_fork */ |
2027 | postfork = 1; /* must be in line with ev_loop_fork */ |
1897 | } |
2028 | } |
1898 | |
2029 | |
… | |
… | |
1992 | EV_FREQUENT_CHECK; |
2123 | EV_FREQUENT_CHECK; |
1993 | feed_reverse (EV_A_ (W)w); |
2124 | feed_reverse (EV_A_ (W)w); |
1994 | } |
2125 | } |
1995 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2126 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1996 | |
2127 | |
1997 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2128 | feed_reverse_done (EV_A_ EV_TIMER); |
1998 | } |
2129 | } |
1999 | } |
2130 | } |
2000 | |
2131 | |
2001 | #if EV_PERIODIC_ENABLE |
2132 | #if EV_PERIODIC_ENABLE |
2002 | /* make periodics pending */ |
2133 | /* make periodics pending */ |
… | |
… | |
2055 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2186 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2056 | } |
2187 | } |
2057 | } |
2188 | } |
2058 | |
2189 | |
2059 | /* simply recalculate all periodics */ |
2190 | /* simply recalculate all periodics */ |
2060 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2191 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2061 | static void noinline |
2192 | static void noinline |
2062 | periodics_reschedule (EV_P) |
2193 | periodics_reschedule (EV_P) |
2063 | { |
2194 | { |
2064 | int i; |
2195 | int i; |
2065 | |
2196 | |
… | |
… | |
2093 | ANHE_at_cache (*he); |
2224 | ANHE_at_cache (*he); |
2094 | } |
2225 | } |
2095 | } |
2226 | } |
2096 | |
2227 | |
2097 | /* fetch new monotonic and realtime times from the kernel */ |
2228 | /* fetch new monotonic and realtime times from the kernel */ |
2098 | /* also detetc if there was a timejump, and act accordingly */ |
2229 | /* also detect if there was a timejump, and act accordingly */ |
2099 | inline_speed void |
2230 | inline_speed void |
2100 | time_update (EV_P_ ev_tstamp max_block) |
2231 | time_update (EV_P_ ev_tstamp max_block) |
2101 | { |
2232 | { |
2102 | #if EV_USE_MONOTONIC |
2233 | #if EV_USE_MONOTONIC |
2103 | if (expect_true (have_monotonic)) |
2234 | if (expect_true (have_monotonic)) |
… | |
… | |
2161 | mn_now = ev_rt_now; |
2292 | mn_now = ev_rt_now; |
2162 | } |
2293 | } |
2163 | } |
2294 | } |
2164 | |
2295 | |
2165 | void |
2296 | void |
2166 | ev_loop (EV_P_ int flags) |
2297 | ev_run (EV_P_ int flags) |
2167 | { |
2298 | { |
2168 | #if EV_MINIMAL < 2 |
2299 | #if EV_FEATURE_API |
2169 | ++loop_depth; |
2300 | ++loop_depth; |
2170 | #endif |
2301 | #endif |
2171 | |
2302 | |
2172 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2303 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2173 | |
2304 | |
2174 | loop_done = EVUNLOOP_CANCEL; |
2305 | loop_done = EVBREAK_CANCEL; |
2175 | |
2306 | |
2176 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2307 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2177 | |
2308 | |
2178 | do |
2309 | do |
2179 | { |
2310 | { |
2180 | #if EV_VERIFY >= 2 |
2311 | #if EV_VERIFY >= 2 |
2181 | ev_loop_verify (EV_A); |
2312 | ev_verify (EV_A); |
2182 | #endif |
2313 | #endif |
2183 | |
2314 | |
2184 | #ifndef _WIN32 |
2315 | #ifndef _WIN32 |
2185 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2316 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2186 | if (expect_false (getpid () != curpid)) |
2317 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2198 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2329 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2199 | EV_INVOKE_PENDING; |
2330 | EV_INVOKE_PENDING; |
2200 | } |
2331 | } |
2201 | #endif |
2332 | #endif |
2202 | |
2333 | |
|
|
2334 | #if EV_PREPARE_ENABLE |
2203 | /* queue prepare watchers (and execute them) */ |
2335 | /* queue prepare watchers (and execute them) */ |
2204 | if (expect_false (preparecnt)) |
2336 | if (expect_false (preparecnt)) |
2205 | { |
2337 | { |
2206 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2338 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2207 | EV_INVOKE_PENDING; |
2339 | EV_INVOKE_PENDING; |
2208 | } |
2340 | } |
|
|
2341 | #endif |
2209 | |
2342 | |
2210 | if (expect_false (loop_done)) |
2343 | if (expect_false (loop_done)) |
2211 | break; |
2344 | break; |
2212 | |
2345 | |
2213 | /* we might have forked, so reify kernel state if necessary */ |
2346 | /* we might have forked, so reify kernel state if necessary */ |
… | |
… | |
2220 | /* calculate blocking time */ |
2353 | /* calculate blocking time */ |
2221 | { |
2354 | { |
2222 | ev_tstamp waittime = 0.; |
2355 | ev_tstamp waittime = 0.; |
2223 | ev_tstamp sleeptime = 0.; |
2356 | ev_tstamp sleeptime = 0.; |
2224 | |
2357 | |
|
|
2358 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2359 | ev_tstamp prev_mn_now = mn_now; |
|
|
2360 | |
|
|
2361 | /* update time to cancel out callback processing overhead */ |
|
|
2362 | time_update (EV_A_ 1e100); |
|
|
2363 | |
2225 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2364 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2226 | { |
2365 | { |
2227 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2228 | ev_tstamp prev_mn_now = mn_now; |
|
|
2229 | |
|
|
2230 | /* update time to cancel out callback processing overhead */ |
|
|
2231 | time_update (EV_A_ 1e100); |
|
|
2232 | |
|
|
2233 | waittime = MAX_BLOCKTIME; |
2366 | waittime = MAX_BLOCKTIME; |
2234 | |
2367 | |
2235 | if (timercnt) |
2368 | if (timercnt) |
2236 | { |
2369 | { |
2237 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2370 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2264 | waittime -= sleeptime; |
2397 | waittime -= sleeptime; |
2265 | } |
2398 | } |
2266 | } |
2399 | } |
2267 | } |
2400 | } |
2268 | |
2401 | |
2269 | #if EV_MINIMAL < 2 |
2402 | #if EV_FEATURE_API |
2270 | ++loop_count; |
2403 | ++loop_count; |
2271 | #endif |
2404 | #endif |
2272 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2405 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2273 | backend_poll (EV_A_ waittime); |
2406 | backend_poll (EV_A_ waittime); |
2274 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2407 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2275 | |
2408 | |
2276 | /* update ev_rt_now, do magic */ |
2409 | /* update ev_rt_now, do magic */ |
2277 | time_update (EV_A_ waittime + sleeptime); |
2410 | time_update (EV_A_ waittime + sleeptime); |
2278 | } |
2411 | } |
2279 | |
2412 | |
… | |
… | |
2286 | #if EV_IDLE_ENABLE |
2419 | #if EV_IDLE_ENABLE |
2287 | /* queue idle watchers unless other events are pending */ |
2420 | /* queue idle watchers unless other events are pending */ |
2288 | idle_reify (EV_A); |
2421 | idle_reify (EV_A); |
2289 | #endif |
2422 | #endif |
2290 | |
2423 | |
|
|
2424 | #if EV_CHECK_ENABLE |
2291 | /* queue check watchers, to be executed first */ |
2425 | /* queue check watchers, to be executed first */ |
2292 | if (expect_false (checkcnt)) |
2426 | if (expect_false (checkcnt)) |
2293 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2427 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2428 | #endif |
2294 | |
2429 | |
2295 | EV_INVOKE_PENDING; |
2430 | EV_INVOKE_PENDING; |
2296 | } |
2431 | } |
2297 | while (expect_true ( |
2432 | while (expect_true ( |
2298 | activecnt |
2433 | activecnt |
2299 | && !loop_done |
2434 | && !loop_done |
2300 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2435 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2301 | )); |
2436 | )); |
2302 | |
2437 | |
2303 | if (loop_done == EVUNLOOP_ONE) |
2438 | if (loop_done == EVBREAK_ONE) |
2304 | loop_done = EVUNLOOP_CANCEL; |
2439 | loop_done = EVBREAK_CANCEL; |
2305 | |
2440 | |
2306 | #if EV_MINIMAL < 2 |
2441 | #if EV_FEATURE_API |
2307 | --loop_depth; |
2442 | --loop_depth; |
2308 | #endif |
2443 | #endif |
2309 | } |
2444 | } |
2310 | |
2445 | |
2311 | void |
2446 | void |
2312 | ev_unloop (EV_P_ int how) |
2447 | ev_break (EV_P_ int how) |
2313 | { |
2448 | { |
2314 | loop_done = how; |
2449 | loop_done = how; |
2315 | } |
2450 | } |
2316 | |
2451 | |
2317 | void |
2452 | void |
… | |
… | |
2364 | inline_size void |
2499 | inline_size void |
2365 | wlist_del (WL *head, WL elem) |
2500 | wlist_del (WL *head, WL elem) |
2366 | { |
2501 | { |
2367 | while (*head) |
2502 | while (*head) |
2368 | { |
2503 | { |
2369 | if (*head == elem) |
2504 | if (expect_true (*head == elem)) |
2370 | { |
2505 | { |
2371 | *head = elem->next; |
2506 | *head = elem->next; |
2372 | return; |
2507 | break; |
2373 | } |
2508 | } |
2374 | |
2509 | |
2375 | head = &(*head)->next; |
2510 | head = &(*head)->next; |
2376 | } |
2511 | } |
2377 | } |
2512 | } |
… | |
… | |
2437 | |
2572 | |
2438 | if (expect_false (ev_is_active (w))) |
2573 | if (expect_false (ev_is_active (w))) |
2439 | return; |
2574 | return; |
2440 | |
2575 | |
2441 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2576 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2442 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2577 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2443 | |
2578 | |
2444 | EV_FREQUENT_CHECK; |
2579 | EV_FREQUENT_CHECK; |
2445 | |
2580 | |
2446 | ev_start (EV_A_ (W)w, 1); |
2581 | ev_start (EV_A_ (W)w, 1); |
2447 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2582 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
… | |
… | |
2465 | EV_FREQUENT_CHECK; |
2600 | EV_FREQUENT_CHECK; |
2466 | |
2601 | |
2467 | wlist_del (&anfds[w->fd].head, (WL)w); |
2602 | wlist_del (&anfds[w->fd].head, (WL)w); |
2468 | ev_stop (EV_A_ (W)w); |
2603 | ev_stop (EV_A_ (W)w); |
2469 | |
2604 | |
2470 | fd_change (EV_A_ w->fd, 1); |
2605 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2471 | |
2606 | |
2472 | EV_FREQUENT_CHECK; |
2607 | EV_FREQUENT_CHECK; |
2473 | } |
2608 | } |
2474 | |
2609 | |
2475 | void noinline |
2610 | void noinline |
… | |
… | |
2517 | timers [active] = timers [timercnt + HEAP0]; |
2652 | timers [active] = timers [timercnt + HEAP0]; |
2518 | adjustheap (timers, timercnt, active); |
2653 | adjustheap (timers, timercnt, active); |
2519 | } |
2654 | } |
2520 | } |
2655 | } |
2521 | |
2656 | |
2522 | EV_FREQUENT_CHECK; |
|
|
2523 | |
|
|
2524 | ev_at (w) -= mn_now; |
2657 | ev_at (w) -= mn_now; |
2525 | |
2658 | |
2526 | ev_stop (EV_A_ (W)w); |
2659 | ev_stop (EV_A_ (W)w); |
|
|
2660 | |
|
|
2661 | EV_FREQUENT_CHECK; |
2527 | } |
2662 | } |
2528 | |
2663 | |
2529 | void noinline |
2664 | void noinline |
2530 | ev_timer_again (EV_P_ ev_timer *w) |
2665 | ev_timer_again (EV_P_ ev_timer *w) |
2531 | { |
2666 | { |
… | |
… | |
2610 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2745 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2611 | adjustheap (periodics, periodiccnt, active); |
2746 | adjustheap (periodics, periodiccnt, active); |
2612 | } |
2747 | } |
2613 | } |
2748 | } |
2614 | |
2749 | |
2615 | EV_FREQUENT_CHECK; |
|
|
2616 | |
|
|
2617 | ev_stop (EV_A_ (W)w); |
2750 | ev_stop (EV_A_ (W)w); |
|
|
2751 | |
|
|
2752 | EV_FREQUENT_CHECK; |
2618 | } |
2753 | } |
2619 | |
2754 | |
2620 | void noinline |
2755 | void noinline |
2621 | ev_periodic_again (EV_P_ ev_periodic *w) |
2756 | ev_periodic_again (EV_P_ ev_periodic *w) |
2622 | { |
2757 | { |
… | |
… | |
2628 | |
2763 | |
2629 | #ifndef SA_RESTART |
2764 | #ifndef SA_RESTART |
2630 | # define SA_RESTART 0 |
2765 | # define SA_RESTART 0 |
2631 | #endif |
2766 | #endif |
2632 | |
2767 | |
|
|
2768 | #if EV_SIGNAL_ENABLE |
|
|
2769 | |
2633 | void noinline |
2770 | void noinline |
2634 | ev_signal_start (EV_P_ ev_signal *w) |
2771 | ev_signal_start (EV_P_ ev_signal *w) |
2635 | { |
2772 | { |
2636 | #if EV_MULTIPLICITY |
|
|
2637 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2638 | #endif |
|
|
2639 | if (expect_false (ev_is_active (w))) |
2773 | if (expect_false (ev_is_active (w))) |
2640 | return; |
2774 | return; |
2641 | |
2775 | |
2642 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2776 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
2777 | |
|
|
2778 | #if EV_MULTIPLICITY |
|
|
2779 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2780 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2781 | |
|
|
2782 | signals [w->signum - 1].loop = EV_A; |
|
|
2783 | #endif |
2643 | |
2784 | |
2644 | EV_FREQUENT_CHECK; |
2785 | EV_FREQUENT_CHECK; |
2645 | |
2786 | |
2646 | #if EV_USE_SIGNALFD |
2787 | #if EV_USE_SIGNALFD |
2647 | if (sigfd == -2) |
2788 | if (sigfd == -2) |
… | |
… | |
2669 | sigaddset (&sigfd_set, w->signum); |
2810 | sigaddset (&sigfd_set, w->signum); |
2670 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
2811 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
2671 | |
2812 | |
2672 | signalfd (sigfd, &sigfd_set, 0); |
2813 | signalfd (sigfd, &sigfd_set, 0); |
2673 | } |
2814 | } |
2674 | else |
|
|
2675 | #endif |
|
|
2676 | evpipe_init (EV_A); |
|
|
2677 | |
|
|
2678 | { |
|
|
2679 | #ifndef _WIN32 |
|
|
2680 | sigset_t full, prev; |
|
|
2681 | sigfillset (&full); |
|
|
2682 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2683 | #endif |
|
|
2684 | |
|
|
2685 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
|
|
2686 | |
|
|
2687 | #ifndef _WIN32 |
|
|
2688 | # if EV_USE_SIGNALFD |
|
|
2689 | if (sigfd < 0)/*TODO*/ |
|
|
2690 | # endif |
2815 | #endif |
2691 | sigdelset (&prev, w->signum); |
|
|
2692 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2693 | #endif |
|
|
2694 | } |
|
|
2695 | |
2816 | |
2696 | ev_start (EV_A_ (W)w, 1); |
2817 | ev_start (EV_A_ (W)w, 1); |
2697 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2818 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2698 | |
2819 | |
2699 | if (!((WL)w)->next) |
2820 | if (!((WL)w)->next) |
2700 | { |
|
|
2701 | #if _WIN32 |
|
|
2702 | signal (w->signum, ev_sighandler); |
|
|
2703 | #else |
|
|
2704 | # if EV_USE_SIGNALFD |
2821 | # if EV_USE_SIGNALFD |
2705 | if (sigfd < 0) /*TODO*/ |
2822 | if (sigfd < 0) /*TODO*/ |
2706 | # endif |
2823 | # endif |
2707 | { |
2824 | { |
|
|
2825 | # ifdef _WIN32 |
|
|
2826 | evpipe_init (EV_A); |
|
|
2827 | |
|
|
2828 | signal (w->signum, ev_sighandler); |
|
|
2829 | # else |
2708 | struct sigaction sa = { }; |
2830 | struct sigaction sa; |
|
|
2831 | |
|
|
2832 | evpipe_init (EV_A); |
|
|
2833 | |
2709 | sa.sa_handler = ev_sighandler; |
2834 | sa.sa_handler = ev_sighandler; |
2710 | sigfillset (&sa.sa_mask); |
2835 | sigfillset (&sa.sa_mask); |
2711 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2836 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2712 | sigaction (w->signum, &sa, 0); |
2837 | sigaction (w->signum, &sa, 0); |
|
|
2838 | |
|
|
2839 | sigemptyset (&sa.sa_mask); |
|
|
2840 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2841 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2842 | #endif |
2713 | } |
2843 | } |
2714 | #endif |
|
|
2715 | } |
|
|
2716 | |
2844 | |
2717 | EV_FREQUENT_CHECK; |
2845 | EV_FREQUENT_CHECK; |
2718 | } |
2846 | } |
2719 | |
2847 | |
2720 | void noinline |
2848 | void noinline |
… | |
… | |
2728 | |
2856 | |
2729 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2857 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2730 | ev_stop (EV_A_ (W)w); |
2858 | ev_stop (EV_A_ (W)w); |
2731 | |
2859 | |
2732 | if (!signals [w->signum - 1].head) |
2860 | if (!signals [w->signum - 1].head) |
|
|
2861 | { |
|
|
2862 | #if EV_MULTIPLICITY |
|
|
2863 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2864 | #endif |
2733 | #if EV_USE_SIGNALFD |
2865 | #if EV_USE_SIGNALFD |
2734 | if (sigfd >= 0) |
2866 | if (sigfd >= 0) |
2735 | { |
2867 | { |
2736 | sigprocmask (SIG_UNBLOCK, &sigfd_set, 0);//D |
2868 | sigset_t ss; |
|
|
2869 | |
|
|
2870 | sigemptyset (&ss); |
|
|
2871 | sigaddset (&ss, w->signum); |
2737 | sigdelset (&sigfd_set, w->signum); |
2872 | sigdelset (&sigfd_set, w->signum); |
|
|
2873 | |
2738 | signalfd (sigfd, &sigfd_set, 0); |
2874 | signalfd (sigfd, &sigfd_set, 0); |
2739 | sigprocmask (SIG_BLOCK, &sigfd_set, 0);//D |
2875 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
2740 | /*TODO: maybe unblock signal? */ |
|
|
2741 | } |
2876 | } |
2742 | else |
2877 | else |
2743 | #endif |
2878 | #endif |
2744 | signal (w->signum, SIG_DFL); |
2879 | signal (w->signum, SIG_DFL); |
|
|
2880 | } |
2745 | |
2881 | |
2746 | EV_FREQUENT_CHECK; |
2882 | EV_FREQUENT_CHECK; |
2747 | } |
2883 | } |
|
|
2884 | |
|
|
2885 | #endif |
|
|
2886 | |
|
|
2887 | #if EV_CHILD_ENABLE |
2748 | |
2888 | |
2749 | void |
2889 | void |
2750 | ev_child_start (EV_P_ ev_child *w) |
2890 | ev_child_start (EV_P_ ev_child *w) |
2751 | { |
2891 | { |
2752 | #if EV_MULTIPLICITY |
2892 | #if EV_MULTIPLICITY |
… | |
… | |
2756 | return; |
2896 | return; |
2757 | |
2897 | |
2758 | EV_FREQUENT_CHECK; |
2898 | EV_FREQUENT_CHECK; |
2759 | |
2899 | |
2760 | ev_start (EV_A_ (W)w, 1); |
2900 | ev_start (EV_A_ (W)w, 1); |
2761 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2901 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2762 | |
2902 | |
2763 | EV_FREQUENT_CHECK; |
2903 | EV_FREQUENT_CHECK; |
2764 | } |
2904 | } |
2765 | |
2905 | |
2766 | void |
2906 | void |
… | |
… | |
2770 | if (expect_false (!ev_is_active (w))) |
2910 | if (expect_false (!ev_is_active (w))) |
2771 | return; |
2911 | return; |
2772 | |
2912 | |
2773 | EV_FREQUENT_CHECK; |
2913 | EV_FREQUENT_CHECK; |
2774 | |
2914 | |
2775 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2915 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2776 | ev_stop (EV_A_ (W)w); |
2916 | ev_stop (EV_A_ (W)w); |
2777 | |
2917 | |
2778 | EV_FREQUENT_CHECK; |
2918 | EV_FREQUENT_CHECK; |
2779 | } |
2919 | } |
|
|
2920 | |
|
|
2921 | #endif |
2780 | |
2922 | |
2781 | #if EV_STAT_ENABLE |
2923 | #if EV_STAT_ENABLE |
2782 | |
2924 | |
2783 | # ifdef _WIN32 |
2925 | # ifdef _WIN32 |
2784 | # undef lstat |
2926 | # undef lstat |
… | |
… | |
2790 | #define MIN_STAT_INTERVAL 0.1074891 |
2932 | #define MIN_STAT_INTERVAL 0.1074891 |
2791 | |
2933 | |
2792 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2934 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2793 | |
2935 | |
2794 | #if EV_USE_INOTIFY |
2936 | #if EV_USE_INOTIFY |
2795 | # define EV_INOTIFY_BUFSIZE 8192 |
2937 | |
|
|
2938 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2939 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2796 | |
2940 | |
2797 | static void noinline |
2941 | static void noinline |
2798 | infy_add (EV_P_ ev_stat *w) |
2942 | infy_add (EV_P_ ev_stat *w) |
2799 | { |
2943 | { |
2800 | 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); |
2944 | 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); |
2801 | |
2945 | |
2802 | if (w->wd < 0) |
2946 | if (w->wd >= 0) |
|
|
2947 | { |
|
|
2948 | struct statfs sfs; |
|
|
2949 | |
|
|
2950 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2951 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2952 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2953 | |
|
|
2954 | if (!fs_2625) |
|
|
2955 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2956 | else if (!statfs (w->path, &sfs) |
|
|
2957 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2958 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2959 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2960 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2961 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2962 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2963 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2964 | else |
|
|
2965 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2803 | { |
2966 | } |
|
|
2967 | else |
|
|
2968 | { |
|
|
2969 | /* can't use inotify, continue to stat */ |
2804 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2970 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2805 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2806 | |
2971 | |
2807 | /* monitor some parent directory for speedup hints */ |
2972 | /* if path is not there, monitor some parent directory for speedup hints */ |
2808 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2973 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2809 | /* but an efficiency issue only */ |
2974 | /* but an efficiency issue only */ |
2810 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2975 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2811 | { |
2976 | { |
2812 | char path [4096]; |
2977 | char path [4096]; |
… | |
… | |
2828 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2993 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2829 | } |
2994 | } |
2830 | } |
2995 | } |
2831 | |
2996 | |
2832 | if (w->wd >= 0) |
2997 | if (w->wd >= 0) |
2833 | { |
|
|
2834 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2998 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2835 | |
2999 | |
2836 | /* now local changes will be tracked by inotify, but remote changes won't */ |
3000 | /* now re-arm timer, if required */ |
2837 | /* unless the filesystem it known to be local, we therefore still poll */ |
3001 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2838 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2839 | struct statfs sfs; |
|
|
2840 | |
|
|
2841 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2842 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2843 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2844 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2845 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2846 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2847 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2848 | return; |
|
|
2849 | |
|
|
2850 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2851 | ev_timer_again (EV_A_ &w->timer); |
3002 | ev_timer_again (EV_A_ &w->timer); |
2852 | } |
3003 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2853 | } |
3004 | } |
2854 | |
3005 | |
2855 | static void noinline |
3006 | static void noinline |
2856 | infy_del (EV_P_ ev_stat *w) |
3007 | infy_del (EV_P_ ev_stat *w) |
2857 | { |
3008 | { |
… | |
… | |
2860 | |
3011 | |
2861 | if (wd < 0) |
3012 | if (wd < 0) |
2862 | return; |
3013 | return; |
2863 | |
3014 | |
2864 | w->wd = -2; |
3015 | w->wd = -2; |
2865 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3016 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2866 | wlist_del (&fs_hash [slot].head, (WL)w); |
3017 | wlist_del (&fs_hash [slot].head, (WL)w); |
2867 | |
3018 | |
2868 | /* remove this watcher, if others are watching it, they will rearm */ |
3019 | /* remove this watcher, if others are watching it, they will rearm */ |
2869 | inotify_rm_watch (fs_fd, wd); |
3020 | inotify_rm_watch (fs_fd, wd); |
2870 | } |
3021 | } |
… | |
… | |
2872 | static void noinline |
3023 | static void noinline |
2873 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3024 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2874 | { |
3025 | { |
2875 | if (slot < 0) |
3026 | if (slot < 0) |
2876 | /* overflow, need to check for all hash slots */ |
3027 | /* overflow, need to check for all hash slots */ |
2877 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3028 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2878 | infy_wd (EV_A_ slot, wd, ev); |
3029 | infy_wd (EV_A_ slot, wd, ev); |
2879 | else |
3030 | else |
2880 | { |
3031 | { |
2881 | WL w_; |
3032 | WL w_; |
2882 | |
3033 | |
2883 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3034 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2884 | { |
3035 | { |
2885 | ev_stat *w = (ev_stat *)w_; |
3036 | ev_stat *w = (ev_stat *)w_; |
2886 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3037 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2887 | |
3038 | |
2888 | if (w->wd == wd || wd == -1) |
3039 | if (w->wd == wd || wd == -1) |
2889 | { |
3040 | { |
2890 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3041 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2891 | { |
3042 | { |
2892 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3043 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2893 | w->wd = -1; |
3044 | w->wd = -1; |
2894 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3045 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2895 | } |
3046 | } |
2896 | |
3047 | |
2897 | stat_timer_cb (EV_A_ &w->timer, 0); |
3048 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2902 | |
3053 | |
2903 | static void |
3054 | static void |
2904 | infy_cb (EV_P_ ev_io *w, int revents) |
3055 | infy_cb (EV_P_ ev_io *w, int revents) |
2905 | { |
3056 | { |
2906 | char buf [EV_INOTIFY_BUFSIZE]; |
3057 | char buf [EV_INOTIFY_BUFSIZE]; |
2907 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2908 | int ofs; |
3058 | int ofs; |
2909 | int len = read (fs_fd, buf, sizeof (buf)); |
3059 | int len = read (fs_fd, buf, sizeof (buf)); |
2910 | |
3060 | |
2911 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3061 | for (ofs = 0; ofs < len; ) |
|
|
3062 | { |
|
|
3063 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2912 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3064 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3065 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3066 | } |
|
|
3067 | } |
|
|
3068 | |
|
|
3069 | inline_size unsigned int |
|
|
3070 | ev_linux_version (void) |
|
|
3071 | { |
|
|
3072 | struct utsname buf; |
|
|
3073 | unsigned int v; |
|
|
3074 | int i; |
|
|
3075 | char *p = buf.release; |
|
|
3076 | |
|
|
3077 | if (uname (&buf)) |
|
|
3078 | return 0; |
|
|
3079 | |
|
|
3080 | for (i = 3+1; --i; ) |
|
|
3081 | { |
|
|
3082 | unsigned int c = 0; |
|
|
3083 | |
|
|
3084 | for (;;) |
|
|
3085 | { |
|
|
3086 | if (*p >= '0' && *p <= '9') |
|
|
3087 | c = c * 10 + *p++ - '0'; |
|
|
3088 | else |
|
|
3089 | { |
|
|
3090 | p += *p == '.'; |
|
|
3091 | break; |
|
|
3092 | } |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | v = (v << 8) | c; |
|
|
3096 | } |
|
|
3097 | |
|
|
3098 | return v; |
2913 | } |
3099 | } |
2914 | |
3100 | |
2915 | inline_size void |
3101 | inline_size void |
2916 | check_2625 (EV_P) |
3102 | ev_check_2625 (EV_P) |
2917 | { |
3103 | { |
2918 | /* kernels < 2.6.25 are borked |
3104 | /* kernels < 2.6.25 are borked |
2919 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3105 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2920 | */ |
3106 | */ |
2921 | struct utsname buf; |
3107 | if (ev_linux_version () < 0x020619) |
2922 | int major, minor, micro; |
|
|
2923 | |
|
|
2924 | if (uname (&buf)) |
|
|
2925 | return; |
3108 | return; |
2926 | |
3109 | |
2927 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2928 | return; |
|
|
2929 | |
|
|
2930 | if (major < 2 |
|
|
2931 | || (major == 2 && minor < 6) |
|
|
2932 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2933 | return; |
|
|
2934 | |
|
|
2935 | fs_2625 = 1; |
3110 | fs_2625 = 1; |
|
|
3111 | } |
|
|
3112 | |
|
|
3113 | inline_size int |
|
|
3114 | infy_newfd (void) |
|
|
3115 | { |
|
|
3116 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3117 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3118 | if (fd >= 0) |
|
|
3119 | return fd; |
|
|
3120 | #endif |
|
|
3121 | return inotify_init (); |
2936 | } |
3122 | } |
2937 | |
3123 | |
2938 | inline_size void |
3124 | inline_size void |
2939 | infy_init (EV_P) |
3125 | infy_init (EV_P) |
2940 | { |
3126 | { |
2941 | if (fs_fd != -2) |
3127 | if (fs_fd != -2) |
2942 | return; |
3128 | return; |
2943 | |
3129 | |
2944 | fs_fd = -1; |
3130 | fs_fd = -1; |
2945 | |
3131 | |
2946 | check_2625 (EV_A); |
3132 | ev_check_2625 (EV_A); |
2947 | |
3133 | |
2948 | fs_fd = inotify_init (); |
3134 | fs_fd = infy_newfd (); |
2949 | |
3135 | |
2950 | if (fs_fd >= 0) |
3136 | if (fs_fd >= 0) |
2951 | { |
3137 | { |
|
|
3138 | fd_intern (fs_fd); |
2952 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3139 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2953 | ev_set_priority (&fs_w, EV_MAXPRI); |
3140 | ev_set_priority (&fs_w, EV_MAXPRI); |
2954 | ev_io_start (EV_A_ &fs_w); |
3141 | ev_io_start (EV_A_ &fs_w); |
|
|
3142 | ev_unref (EV_A); |
2955 | } |
3143 | } |
2956 | } |
3144 | } |
2957 | |
3145 | |
2958 | inline_size void |
3146 | inline_size void |
2959 | infy_fork (EV_P) |
3147 | infy_fork (EV_P) |
… | |
… | |
2961 | int slot; |
3149 | int slot; |
2962 | |
3150 | |
2963 | if (fs_fd < 0) |
3151 | if (fs_fd < 0) |
2964 | return; |
3152 | return; |
2965 | |
3153 | |
|
|
3154 | ev_ref (EV_A); |
|
|
3155 | ev_io_stop (EV_A_ &fs_w); |
2966 | close (fs_fd); |
3156 | close (fs_fd); |
2967 | fs_fd = inotify_init (); |
3157 | fs_fd = infy_newfd (); |
2968 | |
3158 | |
|
|
3159 | if (fs_fd >= 0) |
|
|
3160 | { |
|
|
3161 | fd_intern (fs_fd); |
|
|
3162 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3163 | ev_io_start (EV_A_ &fs_w); |
|
|
3164 | ev_unref (EV_A); |
|
|
3165 | } |
|
|
3166 | |
2969 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3167 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2970 | { |
3168 | { |
2971 | WL w_ = fs_hash [slot].head; |
3169 | WL w_ = fs_hash [slot].head; |
2972 | fs_hash [slot].head = 0; |
3170 | fs_hash [slot].head = 0; |
2973 | |
3171 | |
2974 | while (w_) |
3172 | while (w_) |
… | |
… | |
2979 | w->wd = -1; |
3177 | w->wd = -1; |
2980 | |
3178 | |
2981 | if (fs_fd >= 0) |
3179 | if (fs_fd >= 0) |
2982 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3180 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2983 | else |
3181 | else |
|
|
3182 | { |
|
|
3183 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3184 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2984 | ev_timer_again (EV_A_ &w->timer); |
3185 | ev_timer_again (EV_A_ &w->timer); |
|
|
3186 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3187 | } |
2985 | } |
3188 | } |
2986 | } |
3189 | } |
2987 | } |
3190 | } |
2988 | |
3191 | |
2989 | #endif |
3192 | #endif |
… | |
… | |
3006 | static void noinline |
3209 | static void noinline |
3007 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3210 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3008 | { |
3211 | { |
3009 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3212 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3010 | |
3213 | |
3011 | /* we copy this here each the time so that */ |
3214 | ev_statdata prev = w->attr; |
3012 | /* prev has the old value when the callback gets invoked */ |
|
|
3013 | w->prev = w->attr; |
|
|
3014 | ev_stat_stat (EV_A_ w); |
3215 | ev_stat_stat (EV_A_ w); |
3015 | |
3216 | |
3016 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3217 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3017 | if ( |
3218 | if ( |
3018 | w->prev.st_dev != w->attr.st_dev |
3219 | prev.st_dev != w->attr.st_dev |
3019 | || w->prev.st_ino != w->attr.st_ino |
3220 | || prev.st_ino != w->attr.st_ino |
3020 | || w->prev.st_mode != w->attr.st_mode |
3221 | || prev.st_mode != w->attr.st_mode |
3021 | || w->prev.st_nlink != w->attr.st_nlink |
3222 | || prev.st_nlink != w->attr.st_nlink |
3022 | || w->prev.st_uid != w->attr.st_uid |
3223 | || prev.st_uid != w->attr.st_uid |
3023 | || w->prev.st_gid != w->attr.st_gid |
3224 | || prev.st_gid != w->attr.st_gid |
3024 | || w->prev.st_rdev != w->attr.st_rdev |
3225 | || prev.st_rdev != w->attr.st_rdev |
3025 | || w->prev.st_size != w->attr.st_size |
3226 | || prev.st_size != w->attr.st_size |
3026 | || w->prev.st_atime != w->attr.st_atime |
3227 | || prev.st_atime != w->attr.st_atime |
3027 | || w->prev.st_mtime != w->attr.st_mtime |
3228 | || prev.st_mtime != w->attr.st_mtime |
3028 | || w->prev.st_ctime != w->attr.st_ctime |
3229 | || prev.st_ctime != w->attr.st_ctime |
3029 | ) { |
3230 | ) { |
|
|
3231 | /* we only update w->prev on actual differences */ |
|
|
3232 | /* in case we test more often than invoke the callback, */ |
|
|
3233 | /* to ensure that prev is always different to attr */ |
|
|
3234 | w->prev = prev; |
|
|
3235 | |
3030 | #if EV_USE_INOTIFY |
3236 | #if EV_USE_INOTIFY |
3031 | if (fs_fd >= 0) |
3237 | if (fs_fd >= 0) |
3032 | { |
3238 | { |
3033 | infy_del (EV_A_ w); |
3239 | infy_del (EV_A_ w); |
3034 | infy_add (EV_A_ w); |
3240 | infy_add (EV_A_ w); |
… | |
… | |
3059 | |
3265 | |
3060 | if (fs_fd >= 0) |
3266 | if (fs_fd >= 0) |
3061 | infy_add (EV_A_ w); |
3267 | infy_add (EV_A_ w); |
3062 | else |
3268 | else |
3063 | #endif |
3269 | #endif |
|
|
3270 | { |
3064 | ev_timer_again (EV_A_ &w->timer); |
3271 | ev_timer_again (EV_A_ &w->timer); |
|
|
3272 | ev_unref (EV_A); |
|
|
3273 | } |
3065 | |
3274 | |
3066 | ev_start (EV_A_ (W)w, 1); |
3275 | ev_start (EV_A_ (W)w, 1); |
3067 | |
3276 | |
3068 | EV_FREQUENT_CHECK; |
3277 | EV_FREQUENT_CHECK; |
3069 | } |
3278 | } |
… | |
… | |
3078 | EV_FREQUENT_CHECK; |
3287 | EV_FREQUENT_CHECK; |
3079 | |
3288 | |
3080 | #if EV_USE_INOTIFY |
3289 | #if EV_USE_INOTIFY |
3081 | infy_del (EV_A_ w); |
3290 | infy_del (EV_A_ w); |
3082 | #endif |
3291 | #endif |
|
|
3292 | |
|
|
3293 | if (ev_is_active (&w->timer)) |
|
|
3294 | { |
|
|
3295 | ev_ref (EV_A); |
3083 | ev_timer_stop (EV_A_ &w->timer); |
3296 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3297 | } |
3084 | |
3298 | |
3085 | ev_stop (EV_A_ (W)w); |
3299 | ev_stop (EV_A_ (W)w); |
3086 | |
3300 | |
3087 | EV_FREQUENT_CHECK; |
3301 | EV_FREQUENT_CHECK; |
3088 | } |
3302 | } |
… | |
… | |
3133 | |
3347 | |
3134 | EV_FREQUENT_CHECK; |
3348 | EV_FREQUENT_CHECK; |
3135 | } |
3349 | } |
3136 | #endif |
3350 | #endif |
3137 | |
3351 | |
|
|
3352 | #if EV_PREPARE_ENABLE |
3138 | void |
3353 | void |
3139 | ev_prepare_start (EV_P_ ev_prepare *w) |
3354 | ev_prepare_start (EV_P_ ev_prepare *w) |
3140 | { |
3355 | { |
3141 | if (expect_false (ev_is_active (w))) |
3356 | if (expect_false (ev_is_active (w))) |
3142 | return; |
3357 | return; |
… | |
… | |
3168 | |
3383 | |
3169 | ev_stop (EV_A_ (W)w); |
3384 | ev_stop (EV_A_ (W)w); |
3170 | |
3385 | |
3171 | EV_FREQUENT_CHECK; |
3386 | EV_FREQUENT_CHECK; |
3172 | } |
3387 | } |
|
|
3388 | #endif |
3173 | |
3389 | |
|
|
3390 | #if EV_CHECK_ENABLE |
3174 | void |
3391 | void |
3175 | ev_check_start (EV_P_ ev_check *w) |
3392 | ev_check_start (EV_P_ ev_check *w) |
3176 | { |
3393 | { |
3177 | if (expect_false (ev_is_active (w))) |
3394 | if (expect_false (ev_is_active (w))) |
3178 | return; |
3395 | return; |
… | |
… | |
3204 | |
3421 | |
3205 | ev_stop (EV_A_ (W)w); |
3422 | ev_stop (EV_A_ (W)w); |
3206 | |
3423 | |
3207 | EV_FREQUENT_CHECK; |
3424 | EV_FREQUENT_CHECK; |
3208 | } |
3425 | } |
|
|
3426 | #endif |
3209 | |
3427 | |
3210 | #if EV_EMBED_ENABLE |
3428 | #if EV_EMBED_ENABLE |
3211 | void noinline |
3429 | void noinline |
3212 | ev_embed_sweep (EV_P_ ev_embed *w) |
3430 | ev_embed_sweep (EV_P_ ev_embed *w) |
3213 | { |
3431 | { |
3214 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3432 | ev_run (w->other, EVRUN_NOWAIT); |
3215 | } |
3433 | } |
3216 | |
3434 | |
3217 | static void |
3435 | static void |
3218 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3436 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3219 | { |
3437 | { |
3220 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3438 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3221 | |
3439 | |
3222 | if (ev_cb (w)) |
3440 | if (ev_cb (w)) |
3223 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3441 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3224 | else |
3442 | else |
3225 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3443 | ev_run (w->other, EVRUN_NOWAIT); |
3226 | } |
3444 | } |
3227 | |
3445 | |
3228 | static void |
3446 | static void |
3229 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3447 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3230 | { |
3448 | { |
3231 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3449 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3232 | |
3450 | |
3233 | { |
3451 | { |
3234 | struct ev_loop *loop = w->other; |
3452 | EV_P = w->other; |
3235 | |
3453 | |
3236 | while (fdchangecnt) |
3454 | while (fdchangecnt) |
3237 | { |
3455 | { |
3238 | fd_reify (EV_A); |
3456 | fd_reify (EV_A); |
3239 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3457 | ev_run (EV_A_ EVRUN_NOWAIT); |
3240 | } |
3458 | } |
3241 | } |
3459 | } |
3242 | } |
3460 | } |
3243 | |
3461 | |
3244 | static void |
3462 | static void |
… | |
… | |
3247 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3465 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3248 | |
3466 | |
3249 | ev_embed_stop (EV_A_ w); |
3467 | ev_embed_stop (EV_A_ w); |
3250 | |
3468 | |
3251 | { |
3469 | { |
3252 | struct ev_loop *loop = w->other; |
3470 | EV_P = w->other; |
3253 | |
3471 | |
3254 | ev_loop_fork (EV_A); |
3472 | ev_loop_fork (EV_A); |
3255 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3473 | ev_run (EV_A_ EVRUN_NOWAIT); |
3256 | } |
3474 | } |
3257 | |
3475 | |
3258 | ev_embed_start (EV_A_ w); |
3476 | ev_embed_start (EV_A_ w); |
3259 | } |
3477 | } |
3260 | |
3478 | |
… | |
… | |
3271 | { |
3489 | { |
3272 | if (expect_false (ev_is_active (w))) |
3490 | if (expect_false (ev_is_active (w))) |
3273 | return; |
3491 | return; |
3274 | |
3492 | |
3275 | { |
3493 | { |
3276 | struct ev_loop *loop = w->other; |
3494 | EV_P = w->other; |
3277 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3495 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3278 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3496 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3279 | } |
3497 | } |
3280 | |
3498 | |
3281 | EV_FREQUENT_CHECK; |
3499 | EV_FREQUENT_CHECK; |
… | |
… | |
3308 | |
3526 | |
3309 | ev_io_stop (EV_A_ &w->io); |
3527 | ev_io_stop (EV_A_ &w->io); |
3310 | ev_prepare_stop (EV_A_ &w->prepare); |
3528 | ev_prepare_stop (EV_A_ &w->prepare); |
3311 | ev_fork_stop (EV_A_ &w->fork); |
3529 | ev_fork_stop (EV_A_ &w->fork); |
3312 | |
3530 | |
|
|
3531 | ev_stop (EV_A_ (W)w); |
|
|
3532 | |
3313 | EV_FREQUENT_CHECK; |
3533 | EV_FREQUENT_CHECK; |
3314 | } |
3534 | } |
3315 | #endif |
3535 | #endif |
3316 | |
3536 | |
3317 | #if EV_FORK_ENABLE |
3537 | #if EV_FORK_ENABLE |
… | |
… | |
3357 | ev_async_start (EV_P_ ev_async *w) |
3577 | ev_async_start (EV_P_ ev_async *w) |
3358 | { |
3578 | { |
3359 | if (expect_false (ev_is_active (w))) |
3579 | if (expect_false (ev_is_active (w))) |
3360 | return; |
3580 | return; |
3361 | |
3581 | |
|
|
3582 | w->sent = 0; |
|
|
3583 | |
3362 | evpipe_init (EV_A); |
3584 | evpipe_init (EV_A); |
3363 | |
3585 | |
3364 | EV_FREQUENT_CHECK; |
3586 | EV_FREQUENT_CHECK; |
3365 | |
3587 | |
3366 | ev_start (EV_A_ (W)w, ++asynccnt); |
3588 | ev_start (EV_A_ (W)w, ++asynccnt); |
… | |
… | |
3393 | |
3615 | |
3394 | void |
3616 | void |
3395 | ev_async_send (EV_P_ ev_async *w) |
3617 | ev_async_send (EV_P_ ev_async *w) |
3396 | { |
3618 | { |
3397 | w->sent = 1; |
3619 | w->sent = 1; |
3398 | evpipe_write (EV_A_ &gotasync); |
3620 | evpipe_write (EV_A_ &async_pending); |
3399 | } |
3621 | } |
3400 | #endif |
3622 | #endif |
3401 | |
3623 | |
3402 | /*****************************************************************************/ |
3624 | /*****************************************************************************/ |
3403 | |
3625 | |
… | |
… | |
3443 | { |
3665 | { |
3444 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3666 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3445 | |
3667 | |
3446 | if (expect_false (!once)) |
3668 | if (expect_false (!once)) |
3447 | { |
3669 | { |
3448 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3670 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3449 | return; |
3671 | return; |
3450 | } |
3672 | } |
3451 | |
3673 | |
3452 | once->cb = cb; |
3674 | once->cb = cb; |
3453 | once->arg = arg; |
3675 | once->arg = arg; |
… | |
… | |
3540 | if (types & EV_ASYNC) |
3762 | if (types & EV_ASYNC) |
3541 | for (i = asynccnt; i--; ) |
3763 | for (i = asynccnt; i--; ) |
3542 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3764 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3543 | #endif |
3765 | #endif |
3544 | |
3766 | |
|
|
3767 | #if EV_PREPARE_ENABLE |
3545 | if (types & EV_PREPARE) |
3768 | if (types & EV_PREPARE) |
3546 | for (i = preparecnt; i--; ) |
3769 | for (i = preparecnt; i--; ) |
3547 | #if EV_EMBED_ENABLE |
3770 | # if EV_EMBED_ENABLE |
3548 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3771 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3549 | #endif |
3772 | # endif |
3550 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3773 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3774 | #endif |
3551 | |
3775 | |
|
|
3776 | #if EV_CHECK_ENABLE |
3552 | if (types & EV_CHECK) |
3777 | if (types & EV_CHECK) |
3553 | for (i = checkcnt; i--; ) |
3778 | for (i = checkcnt; i--; ) |
3554 | cb (EV_A_ EV_CHECK, checks [i]); |
3779 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3780 | #endif |
3555 | |
3781 | |
|
|
3782 | #if EV_SIGNAL_ENABLE |
3556 | if (types & EV_SIGNAL) |
3783 | if (types & EV_SIGNAL) |
3557 | for (i = 0; i < signalmax; ++i) |
3784 | for (i = 0; i < EV_NSIG - 1; ++i) |
3558 | for (wl = signals [i].head; wl; ) |
3785 | for (wl = signals [i].head; wl; ) |
3559 | { |
3786 | { |
3560 | wn = wl->next; |
3787 | wn = wl->next; |
3561 | cb (EV_A_ EV_SIGNAL, wl); |
3788 | cb (EV_A_ EV_SIGNAL, wl); |
3562 | wl = wn; |
3789 | wl = wn; |
3563 | } |
3790 | } |
|
|
3791 | #endif |
3564 | |
3792 | |
|
|
3793 | #if EV_CHILD_ENABLE |
3565 | if (types & EV_CHILD) |
3794 | if (types & EV_CHILD) |
3566 | for (i = EV_PID_HASHSIZE; i--; ) |
3795 | for (i = (EV_PID_HASHSIZE); i--; ) |
3567 | for (wl = childs [i]; wl; ) |
3796 | for (wl = childs [i]; wl; ) |
3568 | { |
3797 | { |
3569 | wn = wl->next; |
3798 | wn = wl->next; |
3570 | cb (EV_A_ EV_CHILD, wl); |
3799 | cb (EV_A_ EV_CHILD, wl); |
3571 | wl = wn; |
3800 | wl = wn; |
3572 | } |
3801 | } |
|
|
3802 | #endif |
3573 | /* EV_STAT 0x00001000 /* stat data changed */ |
3803 | /* EV_STAT 0x00001000 /* stat data changed */ |
3574 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3804 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3575 | } |
3805 | } |
3576 | #endif |
3806 | #endif |
3577 | |
3807 | |