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 | |
|
|
145 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
138 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_SIGNALFD |
139 | # if HAVE_EVENTFD |
147 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
140 | # define EV_USE_EVENTFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_EVENTFD 0 |
|
|
143 | # endif |
148 | # endif |
|
|
149 | # else |
|
|
150 | # undef EV_USE_SIGNALFD |
|
|
151 | # define EV_USE_SIGNALFD 0 |
|
|
152 | # endif |
|
|
153 | |
|
|
154 | # if HAVE_EVENTFD |
|
|
155 | # ifndef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD EV_FEATURE_OS |
|
|
157 | # endif |
|
|
158 | # else |
|
|
159 | # undef EV_USE_EVENTFD |
|
|
160 | # define EV_USE_EVENTFD 0 |
144 | # endif |
161 | # endif |
145 | |
162 | |
146 | #endif |
163 | #endif |
147 | |
164 | |
148 | #include <math.h> |
165 | #include <math.h> |
149 | #include <stdlib.h> |
166 | #include <stdlib.h> |
|
|
167 | #include <string.h> |
150 | #include <fcntl.h> |
168 | #include <fcntl.h> |
151 | #include <stddef.h> |
169 | #include <stddef.h> |
152 | |
170 | |
153 | #include <stdio.h> |
171 | #include <stdio.h> |
154 | |
172 | |
155 | #include <assert.h> |
173 | #include <assert.h> |
156 | #include <errno.h> |
174 | #include <errno.h> |
157 | #include <sys/types.h> |
175 | #include <sys/types.h> |
158 | #include <time.h> |
176 | #include <time.h> |
|
|
177 | #include <limits.h> |
159 | |
178 | |
160 | #include <signal.h> |
179 | #include <signal.h> |
161 | |
180 | |
162 | #ifdef EV_H |
181 | #ifdef EV_H |
163 | # include EV_H |
182 | # include EV_H |
… | |
… | |
174 | # define WIN32_LEAN_AND_MEAN |
193 | # define WIN32_LEAN_AND_MEAN |
175 | # include <windows.h> |
194 | # include <windows.h> |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
178 | # endif |
197 | # endif |
|
|
198 | # undef EV_AVOID_STDIO |
179 | #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 |
180 | |
208 | |
181 | /* 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 |
182 | |
238 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
239 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
240 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
241 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
186 | # else |
242 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
243 | # define EV_USE_CLOCK_SYSCALL 0 |
188 | # endif |
244 | # endif |
189 | #endif |
245 | #endif |
190 | |
246 | |
191 | #ifndef EV_USE_MONOTONIC |
247 | #ifndef EV_USE_MONOTONIC |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
248 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
193 | # define EV_USE_MONOTONIC 1 |
249 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
194 | # else |
250 | # else |
195 | # define EV_USE_MONOTONIC 0 |
251 | # define EV_USE_MONOTONIC 0 |
196 | # endif |
252 | # endif |
197 | #endif |
253 | #endif |
198 | |
254 | |
… | |
… | |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
256 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
201 | #endif |
257 | #endif |
202 | |
258 | |
203 | #ifndef EV_USE_NANOSLEEP |
259 | #ifndef EV_USE_NANOSLEEP |
204 | # if _POSIX_C_SOURCE >= 199309L |
260 | # if _POSIX_C_SOURCE >= 199309L |
205 | # define EV_USE_NANOSLEEP 1 |
261 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
206 | # else |
262 | # else |
207 | # define EV_USE_NANOSLEEP 0 |
263 | # define EV_USE_NANOSLEEP 0 |
208 | # endif |
264 | # endif |
209 | #endif |
265 | #endif |
210 | |
266 | |
211 | #ifndef EV_USE_SELECT |
267 | #ifndef EV_USE_SELECT |
212 | # define EV_USE_SELECT 1 |
268 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
213 | #endif |
269 | #endif |
214 | |
270 | |
215 | #ifndef EV_USE_POLL |
271 | #ifndef EV_USE_POLL |
216 | # ifdef _WIN32 |
272 | # ifdef _WIN32 |
217 | # define EV_USE_POLL 0 |
273 | # define EV_USE_POLL 0 |
218 | # else |
274 | # else |
219 | # define EV_USE_POLL 1 |
275 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
220 | # endif |
276 | # endif |
221 | #endif |
277 | #endif |
222 | |
278 | |
223 | #ifndef EV_USE_EPOLL |
279 | #ifndef EV_USE_EPOLL |
224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
280 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
225 | # define EV_USE_EPOLL 1 |
281 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
226 | # else |
282 | # else |
227 | # define EV_USE_EPOLL 0 |
283 | # define EV_USE_EPOLL 0 |
228 | # endif |
284 | # endif |
229 | #endif |
285 | #endif |
230 | |
286 | |
… | |
… | |
236 | # define EV_USE_PORT 0 |
292 | # define EV_USE_PORT 0 |
237 | #endif |
293 | #endif |
238 | |
294 | |
239 | #ifndef EV_USE_INOTIFY |
295 | #ifndef EV_USE_INOTIFY |
240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
296 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
241 | # define EV_USE_INOTIFY 1 |
297 | # define EV_USE_INOTIFY EV_FEATURE_OS |
242 | # else |
298 | # else |
243 | # define EV_USE_INOTIFY 0 |
299 | # define EV_USE_INOTIFY 0 |
244 | # endif |
300 | # endif |
245 | #endif |
301 | #endif |
246 | |
302 | |
247 | #ifndef EV_PID_HASHSIZE |
303 | #ifndef EV_PID_HASHSIZE |
248 | # if EV_MINIMAL |
304 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
249 | # define EV_PID_HASHSIZE 1 |
|
|
250 | # else |
|
|
251 | # define EV_PID_HASHSIZE 16 |
|
|
252 | # endif |
|
|
253 | #endif |
305 | #endif |
254 | |
306 | |
255 | #ifndef EV_INOTIFY_HASHSIZE |
307 | #ifndef EV_INOTIFY_HASHSIZE |
256 | # if EV_MINIMAL |
308 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
257 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
258 | # else |
|
|
259 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
260 | # endif |
|
|
261 | #endif |
309 | #endif |
262 | |
310 | |
263 | #ifndef EV_USE_EVENTFD |
311 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
313 | # define EV_USE_EVENTFD EV_FEATURE_OS |
266 | # else |
314 | # else |
267 | # define EV_USE_EVENTFD 0 |
315 | # define EV_USE_EVENTFD 0 |
|
|
316 | # endif |
|
|
317 | #endif |
|
|
318 | |
|
|
319 | #ifndef EV_USE_SIGNALFD |
|
|
320 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
321 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
322 | # else |
|
|
323 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
324 | # endif |
269 | #endif |
325 | #endif |
270 | |
326 | |
271 | #if 0 /* debugging */ |
327 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
328 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
329 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
330 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
331 | #endif |
276 | |
332 | |
277 | #ifndef EV_VERIFY |
333 | #ifndef EV_VERIFY |
278 | # define EV_VERIFY !EV_MINIMAL |
334 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
279 | #endif |
335 | #endif |
280 | |
336 | |
281 | #ifndef EV_USE_4HEAP |
337 | #ifndef EV_USE_4HEAP |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
338 | # define EV_USE_4HEAP EV_FEATURE_DATA |
283 | #endif |
339 | #endif |
284 | |
340 | |
285 | #ifndef EV_HEAP_CACHE_AT |
341 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
342 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
287 | #endif |
343 | #endif |
288 | |
344 | |
289 | /* 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, */ |
290 | /* which makes programs even slower. might work on other unices, too. */ |
346 | /* which makes programs even slower. might work on other unices, too. */ |
291 | #if EV_USE_CLOCK_SYSCALL |
347 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
300 | # endif |
356 | # endif |
301 | #endif |
357 | #endif |
302 | |
358 | |
303 | /* 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 */ |
304 | |
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 | |
305 | #ifndef CLOCK_MONOTONIC |
367 | #ifndef CLOCK_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
307 | # define EV_USE_MONOTONIC 0 |
369 | # define EV_USE_MONOTONIC 0 |
308 | #endif |
370 | #endif |
309 | |
371 | |
… | |
… | |
339 | #endif |
401 | #endif |
340 | |
402 | |
341 | #if EV_USE_EVENTFD |
403 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
404 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
405 | # include <stdint.h> |
|
|
406 | # ifndef EFD_NONBLOCK |
|
|
407 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
408 | # endif |
|
|
409 | # ifndef EFD_CLOEXEC |
|
|
410 | # ifdef O_CLOEXEC |
|
|
411 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
412 | # else |
|
|
413 | # define EFD_CLOEXEC 02000000 |
|
|
414 | # endif |
|
|
415 | # endif |
344 | # ifdef __cplusplus |
416 | # ifdef __cplusplus |
345 | extern "C" { |
417 | extern "C" { |
346 | # endif |
418 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
419 | int (eventfd) (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
420 | # ifdef __cplusplus |
349 | } |
421 | } |
350 | # endif |
422 | # endif |
351 | #endif |
423 | #endif |
352 | |
424 | |
|
|
425 | #if EV_USE_SIGNALFD |
|
|
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 |
|
|
451 | #endif |
|
|
452 | |
|
|
453 | |
353 | /**/ |
454 | /**/ |
354 | |
455 | |
355 | #if EV_VERIFY >= 3 |
456 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
457 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
357 | #else |
458 | #else |
358 | # define EV_FREQUENT_CHECK do { } while (0) |
459 | # define EV_FREQUENT_CHECK do { } while (0) |
359 | #endif |
460 | #endif |
360 | |
461 | |
361 | /* |
462 | /* |
… | |
… | |
368 | */ |
469 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
470 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
471 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
472 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
473 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
374 | |
474 | |
375 | #if __GNUC__ >= 4 |
475 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
476 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
477 | # define noinline __attribute__ ((noinline)) |
378 | #else |
478 | #else |
… | |
… | |
385 | |
485 | |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
486 | #define expect_false(expr) expect ((expr) != 0, 0) |
387 | #define expect_true(expr) expect ((expr) != 0, 1) |
487 | #define expect_true(expr) expect ((expr) != 0, 1) |
388 | #define inline_size static inline |
488 | #define inline_size static inline |
389 | |
489 | |
390 | #if EV_MINIMAL |
490 | #if EV_FEATURE_CODE |
|
|
491 | # define inline_speed static inline |
|
|
492 | #else |
391 | # define inline_speed static noinline |
493 | # define inline_speed static noinline |
392 | #else |
|
|
393 | # define inline_speed static inline |
|
|
394 | #endif |
494 | #endif |
395 | |
495 | |
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
496 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
397 | |
497 | |
398 | #if EV_MINPRI == EV_MAXPRI |
498 | #if EV_MINPRI == EV_MAXPRI |
… | |
… | |
411 | #define ev_active(w) ((W)(w))->active |
511 | #define ev_active(w) ((W)(w))->active |
412 | #define ev_at(w) ((WT)(w))->at |
512 | #define ev_at(w) ((WT)(w))->at |
413 | |
513 | |
414 | #if EV_USE_REALTIME |
514 | #if EV_USE_REALTIME |
415 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
515 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
416 | /* giving it a reasonably high chance of working on typical architetcures */ |
516 | /* giving it a reasonably high chance of working on typical architectures */ |
417 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
517 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
418 | #endif |
518 | #endif |
419 | |
519 | |
420 | #if EV_USE_MONOTONIC |
520 | #if EV_USE_MONOTONIC |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
521 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
422 | #endif |
522 | #endif |
423 | |
523 | |
|
|
524 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
525 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
526 | #endif |
|
|
527 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
528 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
529 | #endif |
|
|
530 | #ifndef EV_WIN32_CLOSE_FD |
|
|
531 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
532 | #endif |
|
|
533 | |
424 | #ifdef _WIN32 |
534 | #ifdef _WIN32 |
425 | # include "ev_win32.c" |
535 | # include "ev_win32.c" |
426 | #endif |
536 | #endif |
427 | |
537 | |
428 | /*****************************************************************************/ |
538 | /*****************************************************************************/ |
|
|
539 | |
|
|
540 | #if EV_AVOID_STDIO |
|
|
541 | static void noinline |
|
|
542 | ev_printerr (const char *msg) |
|
|
543 | { |
|
|
544 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
545 | } |
|
|
546 | #endif |
429 | |
547 | |
430 | static void (*syserr_cb)(const char *msg); |
548 | static void (*syserr_cb)(const char *msg); |
431 | |
549 | |
432 | void |
550 | void |
433 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
551 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
443 | |
561 | |
444 | if (syserr_cb) |
562 | if (syserr_cb) |
445 | syserr_cb (msg); |
563 | syserr_cb (msg); |
446 | else |
564 | else |
447 | { |
565 | { |
|
|
566 | #if EV_AVOID_STDIO |
|
|
567 | const char *err = strerror (errno); |
|
|
568 | |
|
|
569 | ev_printerr (msg); |
|
|
570 | ev_printerr (": "); |
|
|
571 | ev_printerr (err); |
|
|
572 | ev_printerr ("\n"); |
|
|
573 | #else |
448 | perror (msg); |
574 | perror (msg); |
|
|
575 | #endif |
449 | abort (); |
576 | abort (); |
450 | } |
577 | } |
451 | } |
578 | } |
452 | |
579 | |
453 | static void * |
580 | static void * |
454 | ev_realloc_emul (void *ptr, long size) |
581 | ev_realloc_emul (void *ptr, long size) |
455 | { |
582 | { |
|
|
583 | #if __GLIBC__ |
|
|
584 | return realloc (ptr, size); |
|
|
585 | #else |
456 | /* some systems, notably openbsd and darwin, fail to properly |
586 | /* some systems, notably openbsd and darwin, fail to properly |
457 | * implement realloc (x, 0) (as required by both ansi c-98 and |
587 | * implement realloc (x, 0) (as required by both ansi c-89 and |
458 | * the single unix specification, so work around them here. |
588 | * the single unix specification, so work around them here. |
459 | */ |
589 | */ |
460 | |
590 | |
461 | if (size) |
591 | if (size) |
462 | return realloc (ptr, size); |
592 | return realloc (ptr, size); |
463 | |
593 | |
464 | free (ptr); |
594 | free (ptr); |
465 | return 0; |
595 | return 0; |
|
|
596 | #endif |
466 | } |
597 | } |
467 | |
598 | |
468 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
599 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
469 | |
600 | |
470 | void |
601 | void |
… | |
… | |
478 | { |
609 | { |
479 | ptr = alloc (ptr, size); |
610 | ptr = alloc (ptr, size); |
480 | |
611 | |
481 | if (!ptr && size) |
612 | if (!ptr && size) |
482 | { |
613 | { |
|
|
614 | #if EV_AVOID_STDIO |
|
|
615 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
616 | #else |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
617 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
618 | #endif |
484 | abort (); |
619 | abort (); |
485 | } |
620 | } |
486 | |
621 | |
487 | return ptr; |
622 | return ptr; |
488 | } |
623 | } |
… | |
… | |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
625 | #define ev_malloc(size) ev_realloc (0, (size)) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
626 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
492 | |
627 | |
493 | /*****************************************************************************/ |
628 | /*****************************************************************************/ |
494 | |
629 | |
|
|
630 | /* set in reify when reification needed */ |
|
|
631 | #define EV_ANFD_REIFY 1 |
|
|
632 | |
495 | /* file descriptor info structure */ |
633 | /* file descriptor info structure */ |
496 | typedef struct |
634 | typedef struct |
497 | { |
635 | { |
498 | WL head; |
636 | WL head; |
499 | unsigned char events; /* the events watched for */ |
637 | unsigned char events; /* the events watched for */ |
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
638 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
639 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
502 | unsigned char unused; |
640 | unsigned char unused; |
503 | #if EV_USE_EPOLL |
641 | #if EV_USE_EPOLL |
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
642 | unsigned int egen; /* generation counter to counter epoll bugs */ |
505 | #endif |
643 | #endif |
… | |
… | |
567 | |
705 | |
568 | static int ev_default_loop_ptr; |
706 | static int ev_default_loop_ptr; |
569 | |
707 | |
570 | #endif |
708 | #endif |
571 | |
709 | |
572 | #if EV_MINIMAL < 2 |
710 | #if EV_FEATURE_API |
573 | # define EV_SUSPEND_CB if (expect_false (suspend_cb)) suspend_cb (EV_A) |
|
|
574 | # define EV_RESUME_CB if (expect_false (resume_cb )) resume_cb (EV_A) |
711 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
712 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
575 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
713 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
576 | #else |
714 | #else |
577 | # define EV_SUSPEND_CB (void)0 |
|
|
578 | # define EV_RESUME_CB (void)0 |
715 | # define EV_RELEASE_CB (void)0 |
|
|
716 | # define EV_ACQUIRE_CB (void)0 |
579 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
717 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
580 | #endif |
718 | #endif |
|
|
719 | |
|
|
720 | #define EVUNLOOP_RECURSE 0x80 |
581 | |
721 | |
582 | /*****************************************************************************/ |
722 | /*****************************************************************************/ |
583 | |
723 | |
584 | #ifndef EV_HAVE_EV_TIME |
724 | #ifndef EV_HAVE_EV_TIME |
585 | ev_tstamp |
725 | ev_tstamp |
… | |
… | |
642 | |
782 | |
643 | tv.tv_sec = (time_t)delay; |
783 | tv.tv_sec = (time_t)delay; |
644 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
784 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
645 | |
785 | |
646 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
786 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
647 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
787 | /* something not guaranteed by newer posix versions, but guaranteed */ |
648 | /* by older ones */ |
788 | /* by older ones */ |
649 | select (0, 0, 0, 0, &tv); |
789 | select (0, 0, 0, 0, &tv); |
650 | #endif |
790 | #endif |
651 | } |
791 | } |
652 | } |
792 | } |
… | |
… | |
654 | /*****************************************************************************/ |
794 | /*****************************************************************************/ |
655 | |
795 | |
656 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
796 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
657 | |
797 | |
658 | /* find a suitable new size for the given array, */ |
798 | /* find a suitable new size for the given array, */ |
659 | /* hopefully by rounding to a ncie-to-malloc size */ |
799 | /* hopefully by rounding to a nice-to-malloc size */ |
660 | inline_size int |
800 | inline_size int |
661 | array_nextsize (int elem, int cur, int cnt) |
801 | array_nextsize (int elem, int cur, int cnt) |
662 | { |
802 | { |
663 | int ncur = cur + 1; |
803 | int ncur = cur + 1; |
664 | |
804 | |
… | |
… | |
760 | } |
900 | } |
761 | |
901 | |
762 | /*****************************************************************************/ |
902 | /*****************************************************************************/ |
763 | |
903 | |
764 | inline_speed void |
904 | inline_speed void |
765 | fd_event (EV_P_ int fd, int revents) |
905 | fd_event_nocheck (EV_P_ int fd, int revents) |
766 | { |
906 | { |
767 | ANFD *anfd = anfds + fd; |
907 | ANFD *anfd = anfds + fd; |
768 | ev_io *w; |
908 | ev_io *w; |
769 | |
909 | |
770 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
910 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
774 | if (ev) |
914 | if (ev) |
775 | ev_feed_event (EV_A_ (W)w, ev); |
915 | ev_feed_event (EV_A_ (W)w, ev); |
776 | } |
916 | } |
777 | } |
917 | } |
778 | |
918 | |
|
|
919 | /* do not submit kernel events for fds that have reify set */ |
|
|
920 | /* because that means they changed while we were polling for new events */ |
|
|
921 | inline_speed void |
|
|
922 | fd_event (EV_P_ int fd, int revents) |
|
|
923 | { |
|
|
924 | ANFD *anfd = anfds + fd; |
|
|
925 | |
|
|
926 | if (expect_true (!anfd->reify)) |
|
|
927 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
928 | } |
|
|
929 | |
779 | void |
930 | void |
780 | ev_feed_fd_event (EV_P_ int fd, int revents) |
931 | ev_feed_fd_event (EV_P_ int fd, int revents) |
781 | { |
932 | { |
782 | if (fd >= 0 && fd < anfdmax) |
933 | if (fd >= 0 && fd < anfdmax) |
783 | fd_event (EV_A_ fd, revents); |
934 | fd_event_nocheck (EV_A_ fd, revents); |
784 | } |
935 | } |
785 | |
936 | |
786 | /* make sure the external fd watch events are in-sync */ |
937 | /* make sure the external fd watch events are in-sync */ |
787 | /* with the kernel/libev internal state */ |
938 | /* with the kernel/libev internal state */ |
788 | inline_size void |
939 | inline_size void |
… | |
… | |
803 | |
954 | |
804 | #if EV_SELECT_IS_WINSOCKET |
955 | #if EV_SELECT_IS_WINSOCKET |
805 | if (events) |
956 | if (events) |
806 | { |
957 | { |
807 | unsigned long arg; |
958 | unsigned long arg; |
808 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
809 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
959 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
810 | #else |
|
|
811 | anfd->handle = _get_osfhandle (fd); |
|
|
812 | #endif |
|
|
813 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
960 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
814 | } |
961 | } |
815 | #endif |
962 | #endif |
816 | |
963 | |
817 | { |
964 | { |
… | |
… | |
855 | ev_io_stop (EV_A_ w); |
1002 | ev_io_stop (EV_A_ w); |
856 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1003 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
857 | } |
1004 | } |
858 | } |
1005 | } |
859 | |
1006 | |
860 | /* check whether the given fd is atcually valid, for error recovery */ |
1007 | /* check whether the given fd is actually valid, for error recovery */ |
861 | inline_size int |
1008 | inline_size int |
862 | fd_valid (int fd) |
1009 | fd_valid (int fd) |
863 | { |
1010 | { |
864 | #ifdef _WIN32 |
1011 | #ifdef _WIN32 |
865 | return _get_osfhandle (fd) != -1; |
1012 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
866 | #else |
1013 | #else |
867 | return fcntl (fd, F_GETFD) != -1; |
1014 | return fcntl (fd, F_GETFD) != -1; |
868 | #endif |
1015 | #endif |
869 | } |
1016 | } |
870 | |
1017 | |
… | |
… | |
888 | |
1035 | |
889 | for (fd = anfdmax; fd--; ) |
1036 | for (fd = anfdmax; fd--; ) |
890 | if (anfds [fd].events) |
1037 | if (anfds [fd].events) |
891 | { |
1038 | { |
892 | fd_kill (EV_A_ fd); |
1039 | fd_kill (EV_A_ fd); |
893 | return; |
1040 | break; |
894 | } |
1041 | } |
895 | } |
1042 | } |
896 | |
1043 | |
897 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1044 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
898 | static void noinline |
1045 | static void noinline |
… | |
… | |
903 | for (fd = 0; fd < anfdmax; ++fd) |
1050 | for (fd = 0; fd < anfdmax; ++fd) |
904 | if (anfds [fd].events) |
1051 | if (anfds [fd].events) |
905 | { |
1052 | { |
906 | anfds [fd].events = 0; |
1053 | anfds [fd].events = 0; |
907 | anfds [fd].emask = 0; |
1054 | anfds [fd].emask = 0; |
908 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1055 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
909 | } |
1056 | } |
910 | } |
1057 | } |
911 | |
1058 | |
|
|
1059 | /* used to prepare libev internal fd's */ |
|
|
1060 | /* this is not fork-safe */ |
|
|
1061 | inline_speed void |
|
|
1062 | fd_intern (int fd) |
|
|
1063 | { |
|
|
1064 | #ifdef _WIN32 |
|
|
1065 | unsigned long arg = 1; |
|
|
1066 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1067 | #else |
|
|
1068 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1069 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1070 | #endif |
|
|
1071 | } |
|
|
1072 | |
912 | /*****************************************************************************/ |
1073 | /*****************************************************************************/ |
913 | |
1074 | |
914 | /* |
1075 | /* |
915 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1076 | * the heap functions want a real array index. array index 0 is guaranteed to not |
916 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1077 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
917 | * the branching factor of the d-tree. |
1078 | * the branching factor of the d-tree. |
918 | */ |
1079 | */ |
919 | |
1080 | |
920 | /* |
1081 | /* |
… | |
… | |
988 | |
1149 | |
989 | for (;;) |
1150 | for (;;) |
990 | { |
1151 | { |
991 | int c = k << 1; |
1152 | int c = k << 1; |
992 | |
1153 | |
993 | if (c > N + HEAP0 - 1) |
1154 | if (c >= N + HEAP0) |
994 | break; |
1155 | break; |
995 | |
1156 | |
996 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1157 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
997 | ? 1 : 0; |
1158 | ? 1 : 0; |
998 | |
1159 | |
… | |
… | |
1034 | |
1195 | |
1035 | /* move an element suitably so it is in a correct place */ |
1196 | /* move an element suitably so it is in a correct place */ |
1036 | inline_size void |
1197 | inline_size void |
1037 | adjustheap (ANHE *heap, int N, int k) |
1198 | adjustheap (ANHE *heap, int N, int k) |
1038 | { |
1199 | { |
1039 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1200 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1040 | upheap (heap, k); |
1201 | upheap (heap, k); |
1041 | else |
1202 | else |
1042 | downheap (heap, N, k); |
1203 | downheap (heap, N, k); |
1043 | } |
1204 | } |
1044 | |
1205 | |
… | |
… | |
1057 | /*****************************************************************************/ |
1218 | /*****************************************************************************/ |
1058 | |
1219 | |
1059 | /* associate signal watchers to a signal signal */ |
1220 | /* associate signal watchers to a signal signal */ |
1060 | typedef struct |
1221 | typedef struct |
1061 | { |
1222 | { |
|
|
1223 | EV_ATOMIC_T pending; |
|
|
1224 | #if EV_MULTIPLICITY |
|
|
1225 | EV_P; |
|
|
1226 | #endif |
1062 | WL head; |
1227 | WL head; |
1063 | EV_ATOMIC_T gotsig; |
|
|
1064 | } ANSIG; |
1228 | } ANSIG; |
1065 | |
1229 | |
1066 | static ANSIG *signals; |
1230 | static ANSIG signals [EV_NSIG - 1]; |
1067 | static int signalmax; |
|
|
1068 | |
|
|
1069 | static EV_ATOMIC_T gotsig; |
|
|
1070 | |
1231 | |
1071 | /*****************************************************************************/ |
1232 | /*****************************************************************************/ |
1072 | |
1233 | |
1073 | /* used to prepare libev internal fd's */ |
1234 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1074 | /* this is not fork-safe */ |
|
|
1075 | inline_speed void |
|
|
1076 | fd_intern (int fd) |
|
|
1077 | { |
|
|
1078 | #ifdef _WIN32 |
|
|
1079 | unsigned long arg = 1; |
|
|
1080 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1081 | #else |
|
|
1082 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1083 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1084 | #endif |
|
|
1085 | } |
|
|
1086 | |
1235 | |
1087 | static void noinline |
1236 | static void noinline |
1088 | evpipe_init (EV_P) |
1237 | evpipe_init (EV_P) |
1089 | { |
1238 | { |
1090 | if (!ev_is_active (&pipe_w)) |
1239 | if (!ev_is_active (&pipe_w)) |
1091 | { |
1240 | { |
1092 | #if EV_USE_EVENTFD |
1241 | # if EV_USE_EVENTFD |
|
|
1242 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1243 | if (evfd < 0 && errno == EINVAL) |
1093 | if ((evfd = eventfd (0, 0)) >= 0) |
1244 | evfd = eventfd (0, 0); |
|
|
1245 | |
|
|
1246 | if (evfd >= 0) |
1094 | { |
1247 | { |
1095 | evpipe [0] = -1; |
1248 | evpipe [0] = -1; |
1096 | fd_intern (evfd); |
1249 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1097 | ev_io_set (&pipe_w, evfd, EV_READ); |
1250 | ev_io_set (&pipe_w, evfd, EV_READ); |
1098 | } |
1251 | } |
1099 | else |
1252 | else |
1100 | #endif |
1253 | # endif |
1101 | { |
1254 | { |
1102 | while (pipe (evpipe)) |
1255 | while (pipe (evpipe)) |
1103 | ev_syserr ("(libev) error creating signal/async pipe"); |
1256 | ev_syserr ("(libev) error creating signal/async pipe"); |
1104 | |
1257 | |
1105 | fd_intern (evpipe [0]); |
1258 | fd_intern (evpipe [0]); |
… | |
… | |
1116 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1269 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1117 | { |
1270 | { |
1118 | if (!*flag) |
1271 | if (!*flag) |
1119 | { |
1272 | { |
1120 | int old_errno = errno; /* save errno because write might clobber it */ |
1273 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1274 | char dummy; |
1121 | |
1275 | |
1122 | *flag = 1; |
1276 | *flag = 1; |
1123 | |
1277 | |
1124 | #if EV_USE_EVENTFD |
1278 | #if EV_USE_EVENTFD |
1125 | if (evfd >= 0) |
1279 | if (evfd >= 0) |
… | |
… | |
1127 | uint64_t counter = 1; |
1281 | uint64_t counter = 1; |
1128 | write (evfd, &counter, sizeof (uint64_t)); |
1282 | write (evfd, &counter, sizeof (uint64_t)); |
1129 | } |
1283 | } |
1130 | else |
1284 | else |
1131 | #endif |
1285 | #endif |
1132 | write (evpipe [1], &old_errno, 1); |
1286 | write (evpipe [1], &dummy, 1); |
1133 | |
1287 | |
1134 | errno = old_errno; |
1288 | errno = old_errno; |
1135 | } |
1289 | } |
1136 | } |
1290 | } |
1137 | |
1291 | |
1138 | /* called whenever the libev signal pipe */ |
1292 | /* called whenever the libev signal pipe */ |
1139 | /* got some events (signal, async) */ |
1293 | /* got some events (signal, async) */ |
1140 | static void |
1294 | static void |
1141 | pipecb (EV_P_ ev_io *iow, int revents) |
1295 | pipecb (EV_P_ ev_io *iow, int revents) |
1142 | { |
1296 | { |
|
|
1297 | int i; |
|
|
1298 | |
1143 | #if EV_USE_EVENTFD |
1299 | #if EV_USE_EVENTFD |
1144 | if (evfd >= 0) |
1300 | if (evfd >= 0) |
1145 | { |
1301 | { |
1146 | uint64_t counter; |
1302 | uint64_t counter; |
1147 | read (evfd, &counter, sizeof (uint64_t)); |
1303 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1151 | { |
1307 | { |
1152 | char dummy; |
1308 | char dummy; |
1153 | read (evpipe [0], &dummy, 1); |
1309 | read (evpipe [0], &dummy, 1); |
1154 | } |
1310 | } |
1155 | |
1311 | |
1156 | if (gotsig && ev_is_default_loop (EV_A)) |
1312 | if (sig_pending) |
1157 | { |
1313 | { |
1158 | int signum; |
1314 | sig_pending = 0; |
1159 | gotsig = 0; |
|
|
1160 | |
1315 | |
1161 | for (signum = signalmax; signum--; ) |
1316 | for (i = EV_NSIG - 1; i--; ) |
1162 | if (signals [signum].gotsig) |
1317 | if (expect_false (signals [i].pending)) |
1163 | ev_feed_signal_event (EV_A_ signum + 1); |
1318 | ev_feed_signal_event (EV_A_ i + 1); |
1164 | } |
1319 | } |
1165 | |
1320 | |
1166 | #if EV_ASYNC_ENABLE |
1321 | #if EV_ASYNC_ENABLE |
1167 | if (gotasync) |
1322 | if (async_pending) |
1168 | { |
1323 | { |
1169 | int i; |
1324 | async_pending = 0; |
1170 | gotasync = 0; |
|
|
1171 | |
1325 | |
1172 | for (i = asynccnt; i--; ) |
1326 | for (i = asynccnt; i--; ) |
1173 | if (asyncs [i]->sent) |
1327 | if (asyncs [i]->sent) |
1174 | { |
1328 | { |
1175 | asyncs [i]->sent = 0; |
1329 | asyncs [i]->sent = 0; |
… | |
… | |
1183 | |
1337 | |
1184 | static void |
1338 | static void |
1185 | ev_sighandler (int signum) |
1339 | ev_sighandler (int signum) |
1186 | { |
1340 | { |
1187 | #if EV_MULTIPLICITY |
1341 | #if EV_MULTIPLICITY |
1188 | struct ev_loop *loop = &default_loop_struct; |
1342 | EV_P = signals [signum - 1].loop; |
1189 | #endif |
1343 | #endif |
1190 | |
1344 | |
1191 | #if _WIN32 |
1345 | #ifdef _WIN32 |
1192 | signal (signum, ev_sighandler); |
1346 | signal (signum, ev_sighandler); |
1193 | #endif |
1347 | #endif |
1194 | |
1348 | |
1195 | signals [signum - 1].gotsig = 1; |
1349 | signals [signum - 1].pending = 1; |
1196 | evpipe_write (EV_A_ &gotsig); |
1350 | evpipe_write (EV_A_ &sig_pending); |
1197 | } |
1351 | } |
1198 | |
1352 | |
1199 | void noinline |
1353 | void noinline |
1200 | ev_feed_signal_event (EV_P_ int signum) |
1354 | ev_feed_signal_event (EV_P_ int signum) |
1201 | { |
1355 | { |
1202 | WL w; |
1356 | WL w; |
1203 | |
1357 | |
|
|
1358 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1359 | return; |
|
|
1360 | |
|
|
1361 | --signum; |
|
|
1362 | |
1204 | #if EV_MULTIPLICITY |
1363 | #if EV_MULTIPLICITY |
1205 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1364 | /* it is permissible to try to feed a signal to the wrong loop */ |
1206 | #endif |
1365 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1207 | |
1366 | |
1208 | --signum; |
1367 | if (expect_false (signals [signum].loop != EV_A)) |
1209 | |
|
|
1210 | if (signum < 0 || signum >= signalmax) |
|
|
1211 | return; |
1368 | return; |
|
|
1369 | #endif |
1212 | |
1370 | |
1213 | signals [signum].gotsig = 0; |
1371 | signals [signum].pending = 0; |
1214 | |
1372 | |
1215 | for (w = signals [signum].head; w; w = w->next) |
1373 | for (w = signals [signum].head; w; w = w->next) |
1216 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1374 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1217 | } |
1375 | } |
1218 | |
1376 | |
|
|
1377 | #if EV_USE_SIGNALFD |
|
|
1378 | static void |
|
|
1379 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1380 | { |
|
|
1381 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1382 | |
|
|
1383 | for (;;) |
|
|
1384 | { |
|
|
1385 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1386 | |
|
|
1387 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1388 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1389 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1390 | |
|
|
1391 | if (res < (ssize_t)sizeof (si)) |
|
|
1392 | break; |
|
|
1393 | } |
|
|
1394 | } |
|
|
1395 | #endif |
|
|
1396 | |
|
|
1397 | #endif |
|
|
1398 | |
1219 | /*****************************************************************************/ |
1399 | /*****************************************************************************/ |
1220 | |
1400 | |
|
|
1401 | #if EV_CHILD_ENABLE |
1221 | static WL childs [EV_PID_HASHSIZE]; |
1402 | static WL childs [EV_PID_HASHSIZE]; |
1222 | |
|
|
1223 | #ifndef _WIN32 |
|
|
1224 | |
1403 | |
1225 | static ev_signal childev; |
1404 | static ev_signal childev; |
1226 | |
1405 | |
1227 | #ifndef WIFCONTINUED |
1406 | #ifndef WIFCONTINUED |
1228 | # define WIFCONTINUED(status) 0 |
1407 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1233 | child_reap (EV_P_ int chain, int pid, int status) |
1412 | child_reap (EV_P_ int chain, int pid, int status) |
1234 | { |
1413 | { |
1235 | ev_child *w; |
1414 | ev_child *w; |
1236 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1415 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1237 | |
1416 | |
1238 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1417 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1239 | { |
1418 | { |
1240 | if ((w->pid == pid || !w->pid) |
1419 | if ((w->pid == pid || !w->pid) |
1241 | && (!traced || (w->flags & 1))) |
1420 | && (!traced || (w->flags & 1))) |
1242 | { |
1421 | { |
1243 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1422 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1268 | /* make sure we are called again until all children have been reaped */ |
1447 | /* make sure we are called again until all children have been reaped */ |
1269 | /* we need to do it this way so that the callback gets called before we continue */ |
1448 | /* we need to do it this way so that the callback gets called before we continue */ |
1270 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1449 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1271 | |
1450 | |
1272 | child_reap (EV_A_ pid, pid, status); |
1451 | child_reap (EV_A_ pid, pid, status); |
1273 | if (EV_PID_HASHSIZE > 1) |
1452 | if ((EV_PID_HASHSIZE) > 1) |
1274 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1453 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1275 | } |
1454 | } |
1276 | |
1455 | |
1277 | #endif |
1456 | #endif |
1278 | |
1457 | |
… | |
… | |
1345 | #ifdef __APPLE__ |
1524 | #ifdef __APPLE__ |
1346 | /* only select works correctly on that "unix-certified" platform */ |
1525 | /* only select works correctly on that "unix-certified" platform */ |
1347 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1526 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1348 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1527 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1349 | #endif |
1528 | #endif |
|
|
1529 | #ifdef __FreeBSD__ |
|
|
1530 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1531 | #endif |
1350 | |
1532 | |
1351 | return flags; |
1533 | return flags; |
1352 | } |
1534 | } |
1353 | |
1535 | |
1354 | unsigned int |
1536 | unsigned int |
… | |
… | |
1367 | ev_backend (EV_P) |
1549 | ev_backend (EV_P) |
1368 | { |
1550 | { |
1369 | return backend; |
1551 | return backend; |
1370 | } |
1552 | } |
1371 | |
1553 | |
1372 | #if EV_MINIMAL < 2 |
1554 | #if EV_FEATURE_API |
1373 | unsigned int |
1555 | unsigned int |
1374 | ev_loop_count (EV_P) |
1556 | ev_iteration (EV_P) |
1375 | { |
1557 | { |
1376 | return loop_count; |
1558 | return loop_count; |
1377 | } |
1559 | } |
1378 | |
1560 | |
1379 | unsigned int |
1561 | unsigned int |
1380 | ev_loop_depth (EV_P) |
1562 | ev_depth (EV_P) |
1381 | { |
1563 | { |
1382 | return loop_depth; |
1564 | return loop_depth; |
1383 | } |
1565 | } |
1384 | |
1566 | |
1385 | void |
1567 | void |
… | |
… | |
1409 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
1591 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
1410 | { |
1592 | { |
1411 | invoke_cb = invoke_pending_cb; |
1593 | invoke_cb = invoke_pending_cb; |
1412 | } |
1594 | } |
1413 | |
1595 | |
1414 | void ev_set_blocking_cb (EV_P_ void (*suspend_cb_)(EV_P), void (*resume_cb_)(EV_P)) |
1596 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
1415 | { |
1597 | { |
1416 | suspend_cb = suspend_cb_; |
1598 | release_cb = release; |
1417 | resume_cb = resume_cb_; |
1599 | acquire_cb = acquire; |
1418 | } |
1600 | } |
1419 | #endif |
1601 | #endif |
1420 | |
1602 | |
1421 | /* initialise a loop structure, must be zero-initialised */ |
1603 | /* initialise a loop structure, must be zero-initialised */ |
1422 | static void noinline |
1604 | static void noinline |
… | |
… | |
1442 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1624 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1443 | have_monotonic = 1; |
1625 | have_monotonic = 1; |
1444 | } |
1626 | } |
1445 | #endif |
1627 | #endif |
1446 | |
1628 | |
|
|
1629 | /* pid check not overridable via env */ |
|
|
1630 | #ifndef _WIN32 |
|
|
1631 | if (flags & EVFLAG_FORKCHECK) |
|
|
1632 | curpid = getpid (); |
|
|
1633 | #endif |
|
|
1634 | |
|
|
1635 | if (!(flags & EVFLAG_NOENV) |
|
|
1636 | && !enable_secure () |
|
|
1637 | && getenv ("LIBEV_FLAGS")) |
|
|
1638 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1639 | |
1447 | ev_rt_now = ev_time (); |
1640 | ev_rt_now = ev_time (); |
1448 | mn_now = get_clock (); |
1641 | mn_now = get_clock (); |
1449 | now_floor = mn_now; |
1642 | now_floor = mn_now; |
1450 | rtmn_diff = ev_rt_now - mn_now; |
1643 | rtmn_diff = ev_rt_now - mn_now; |
1451 | #if EV_MINIMAL < 2 |
1644 | #if EV_FEATURE_API |
1452 | invoke_cb = ev_invoke_pending; |
1645 | invoke_cb = ev_invoke_pending; |
1453 | #endif |
1646 | #endif |
1454 | |
1647 | |
1455 | io_blocktime = 0.; |
1648 | io_blocktime = 0.; |
1456 | timeout_blocktime = 0.; |
1649 | timeout_blocktime = 0.; |
1457 | backend = 0; |
1650 | backend = 0; |
1458 | backend_fd = -1; |
1651 | backend_fd = -1; |
1459 | gotasync = 0; |
1652 | sig_pending = 0; |
|
|
1653 | #if EV_ASYNC_ENABLE |
|
|
1654 | async_pending = 0; |
|
|
1655 | #endif |
1460 | #if EV_USE_INOTIFY |
1656 | #if EV_USE_INOTIFY |
1461 | fs_fd = -2; |
1657 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1462 | #endif |
1658 | #endif |
1463 | |
1659 | #if EV_USE_SIGNALFD |
1464 | /* pid check not overridable via env */ |
1660 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1465 | #ifndef _WIN32 |
|
|
1466 | if (flags & EVFLAG_FORKCHECK) |
|
|
1467 | curpid = getpid (); |
|
|
1468 | #endif |
1661 | #endif |
1469 | |
|
|
1470 | if (!(flags & EVFLAG_NOENV) |
|
|
1471 | && !enable_secure () |
|
|
1472 | && getenv ("LIBEV_FLAGS")) |
|
|
1473 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1474 | |
1662 | |
1475 | if (!(flags & 0x0000ffffU)) |
1663 | if (!(flags & 0x0000ffffU)) |
1476 | flags |= ev_recommended_backends (); |
1664 | flags |= ev_recommended_backends (); |
1477 | |
1665 | |
1478 | #if EV_USE_PORT |
1666 | #if EV_USE_PORT |
… | |
… | |
1491 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1679 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1492 | #endif |
1680 | #endif |
1493 | |
1681 | |
1494 | ev_prepare_init (&pending_w, pendingcb); |
1682 | ev_prepare_init (&pending_w, pendingcb); |
1495 | |
1683 | |
|
|
1684 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1496 | ev_init (&pipe_w, pipecb); |
1685 | ev_init (&pipe_w, pipecb); |
1497 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1686 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1687 | #endif |
1498 | } |
1688 | } |
1499 | } |
1689 | } |
1500 | |
1690 | |
1501 | /* free up a loop structure */ |
1691 | /* free up a loop structure */ |
1502 | static void noinline |
1692 | static void noinline |
… | |
… | |
1504 | { |
1694 | { |
1505 | int i; |
1695 | int i; |
1506 | |
1696 | |
1507 | if (ev_is_active (&pipe_w)) |
1697 | if (ev_is_active (&pipe_w)) |
1508 | { |
1698 | { |
1509 | ev_ref (EV_A); /* signal watcher */ |
1699 | /*ev_ref (EV_A);*/ |
1510 | ev_io_stop (EV_A_ &pipe_w); |
1700 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1511 | |
1701 | |
1512 | #if EV_USE_EVENTFD |
1702 | #if EV_USE_EVENTFD |
1513 | if (evfd >= 0) |
1703 | if (evfd >= 0) |
1514 | close (evfd); |
1704 | close (evfd); |
1515 | #endif |
1705 | #endif |
1516 | |
1706 | |
1517 | if (evpipe [0] >= 0) |
1707 | if (evpipe [0] >= 0) |
1518 | { |
1708 | { |
1519 | close (evpipe [0]); |
1709 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1520 | close (evpipe [1]); |
1710 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1521 | } |
1711 | } |
1522 | } |
1712 | } |
|
|
1713 | |
|
|
1714 | #if EV_USE_SIGNALFD |
|
|
1715 | if (ev_is_active (&sigfd_w)) |
|
|
1716 | close (sigfd); |
|
|
1717 | #endif |
1523 | |
1718 | |
1524 | #if EV_USE_INOTIFY |
1719 | #if EV_USE_INOTIFY |
1525 | if (fs_fd >= 0) |
1720 | if (fs_fd >= 0) |
1526 | close (fs_fd); |
1721 | close (fs_fd); |
1527 | #endif |
1722 | #endif |
… | |
… | |
1551 | #if EV_IDLE_ENABLE |
1746 | #if EV_IDLE_ENABLE |
1552 | array_free (idle, [i]); |
1747 | array_free (idle, [i]); |
1553 | #endif |
1748 | #endif |
1554 | } |
1749 | } |
1555 | |
1750 | |
1556 | ev_free (anfds); anfdmax = 0; |
1751 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1557 | |
1752 | |
1558 | /* have to use the microsoft-never-gets-it-right macro */ |
1753 | /* have to use the microsoft-never-gets-it-right macro */ |
1559 | array_free (rfeed, EMPTY); |
1754 | array_free (rfeed, EMPTY); |
1560 | array_free (fdchange, EMPTY); |
1755 | array_free (fdchange, EMPTY); |
1561 | array_free (timer, EMPTY); |
1756 | array_free (timer, EMPTY); |
… | |
… | |
1596 | |
1791 | |
1597 | if (ev_is_active (&pipe_w)) |
1792 | if (ev_is_active (&pipe_w)) |
1598 | { |
1793 | { |
1599 | /* this "locks" the handlers against writing to the pipe */ |
1794 | /* this "locks" the handlers against writing to the pipe */ |
1600 | /* while we modify the fd vars */ |
1795 | /* while we modify the fd vars */ |
1601 | gotsig = 1; |
1796 | sig_pending = 1; |
1602 | #if EV_ASYNC_ENABLE |
1797 | #if EV_ASYNC_ENABLE |
1603 | gotasync = 1; |
1798 | async_pending = 1; |
1604 | #endif |
1799 | #endif |
1605 | |
1800 | |
1606 | ev_ref (EV_A); |
1801 | ev_ref (EV_A); |
1607 | ev_io_stop (EV_A_ &pipe_w); |
1802 | ev_io_stop (EV_A_ &pipe_w); |
1608 | |
1803 | |
… | |
… | |
1611 | close (evfd); |
1806 | close (evfd); |
1612 | #endif |
1807 | #endif |
1613 | |
1808 | |
1614 | if (evpipe [0] >= 0) |
1809 | if (evpipe [0] >= 0) |
1615 | { |
1810 | { |
1616 | close (evpipe [0]); |
1811 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1617 | close (evpipe [1]); |
1812 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1618 | } |
1813 | } |
1619 | |
1814 | |
|
|
1815 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1620 | evpipe_init (EV_A); |
1816 | evpipe_init (EV_A); |
1621 | /* now iterate over everything, in case we missed something */ |
1817 | /* now iterate over everything, in case we missed something */ |
1622 | pipecb (EV_A_ &pipe_w, EV_READ); |
1818 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1819 | #endif |
1623 | } |
1820 | } |
1624 | |
1821 | |
1625 | postfork = 0; |
1822 | postfork = 0; |
1626 | } |
1823 | } |
1627 | |
1824 | |
1628 | #if EV_MULTIPLICITY |
1825 | #if EV_MULTIPLICITY |
1629 | |
1826 | |
1630 | struct ev_loop * |
1827 | struct ev_loop * |
1631 | ev_loop_new (unsigned int flags) |
1828 | ev_loop_new (unsigned int flags) |
1632 | { |
1829 | { |
1633 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1830 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1634 | |
1831 | |
1635 | memset (loop, 0, sizeof (struct ev_loop)); |
1832 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1636 | |
|
|
1637 | loop_init (EV_A_ flags); |
1833 | loop_init (EV_A_ flags); |
1638 | |
1834 | |
1639 | if (ev_backend (EV_A)) |
1835 | if (ev_backend (EV_A)) |
1640 | return loop; |
1836 | return EV_A; |
1641 | |
1837 | |
1642 | return 0; |
1838 | return 0; |
1643 | } |
1839 | } |
1644 | |
1840 | |
1645 | void |
1841 | void |
… | |
… | |
1690 | verify_watcher (EV_A_ ws [cnt]); |
1886 | verify_watcher (EV_A_ ws [cnt]); |
1691 | } |
1887 | } |
1692 | } |
1888 | } |
1693 | #endif |
1889 | #endif |
1694 | |
1890 | |
1695 | #if EV_MINIMAL < 2 |
1891 | #if EV_FEATURE_API |
1696 | void |
1892 | void |
1697 | ev_loop_verify (EV_P) |
1893 | ev_verify (EV_P) |
1698 | { |
1894 | { |
1699 | #if EV_VERIFY |
1895 | #if EV_VERIFY |
1700 | int i; |
1896 | int i; |
1701 | WL w; |
1897 | WL w; |
1702 | |
1898 | |
… | |
… | |
1741 | #if EV_ASYNC_ENABLE |
1937 | #if EV_ASYNC_ENABLE |
1742 | assert (asyncmax >= asynccnt); |
1938 | assert (asyncmax >= asynccnt); |
1743 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1939 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1744 | #endif |
1940 | #endif |
1745 | |
1941 | |
|
|
1942 | #if EV_PREPARE_ENABLE |
1746 | assert (preparemax >= preparecnt); |
1943 | assert (preparemax >= preparecnt); |
1747 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1944 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1945 | #endif |
1748 | |
1946 | |
|
|
1947 | #if EV_CHECK_ENABLE |
1749 | assert (checkmax >= checkcnt); |
1948 | assert (checkmax >= checkcnt); |
1750 | array_verify (EV_A_ (W *)checks, checkcnt); |
1949 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1950 | #endif |
1751 | |
1951 | |
1752 | # if 0 |
1952 | # if 0 |
|
|
1953 | #if EV_CHILD_ENABLE |
1753 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1954 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1754 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1955 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1956 | #endif |
1755 | # endif |
1957 | # endif |
1756 | #endif |
1958 | #endif |
1757 | } |
1959 | } |
1758 | #endif |
1960 | #endif |
1759 | |
1961 | |
… | |
… | |
1766 | #endif |
1968 | #endif |
1767 | { |
1969 | { |
1768 | if (!ev_default_loop_ptr) |
1970 | if (!ev_default_loop_ptr) |
1769 | { |
1971 | { |
1770 | #if EV_MULTIPLICITY |
1972 | #if EV_MULTIPLICITY |
1771 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1973 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1772 | #else |
1974 | #else |
1773 | ev_default_loop_ptr = 1; |
1975 | ev_default_loop_ptr = 1; |
1774 | #endif |
1976 | #endif |
1775 | |
1977 | |
1776 | loop_init (EV_A_ flags); |
1978 | loop_init (EV_A_ flags); |
1777 | |
1979 | |
1778 | if (ev_backend (EV_A)) |
1980 | if (ev_backend (EV_A)) |
1779 | { |
1981 | { |
1780 | #ifndef _WIN32 |
1982 | #if EV_CHILD_ENABLE |
1781 | ev_signal_init (&childev, childcb, SIGCHLD); |
1983 | ev_signal_init (&childev, childcb, SIGCHLD); |
1782 | ev_set_priority (&childev, EV_MAXPRI); |
1984 | ev_set_priority (&childev, EV_MAXPRI); |
1783 | ev_signal_start (EV_A_ &childev); |
1985 | ev_signal_start (EV_A_ &childev); |
1784 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1986 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1785 | #endif |
1987 | #endif |
… | |
… | |
1793 | |
1995 | |
1794 | void |
1996 | void |
1795 | ev_default_destroy (void) |
1997 | ev_default_destroy (void) |
1796 | { |
1998 | { |
1797 | #if EV_MULTIPLICITY |
1999 | #if EV_MULTIPLICITY |
1798 | struct ev_loop *loop = ev_default_loop_ptr; |
2000 | EV_P = ev_default_loop_ptr; |
1799 | #endif |
2001 | #endif |
1800 | |
2002 | |
1801 | ev_default_loop_ptr = 0; |
2003 | ev_default_loop_ptr = 0; |
1802 | |
2004 | |
1803 | #ifndef _WIN32 |
2005 | #if EV_CHILD_ENABLE |
1804 | ev_ref (EV_A); /* child watcher */ |
2006 | ev_ref (EV_A); /* child watcher */ |
1805 | ev_signal_stop (EV_A_ &childev); |
2007 | ev_signal_stop (EV_A_ &childev); |
1806 | #endif |
2008 | #endif |
1807 | |
2009 | |
1808 | loop_destroy (EV_A); |
2010 | loop_destroy (EV_A); |
… | |
… | |
1810 | |
2012 | |
1811 | void |
2013 | void |
1812 | ev_default_fork (void) |
2014 | ev_default_fork (void) |
1813 | { |
2015 | { |
1814 | #if EV_MULTIPLICITY |
2016 | #if EV_MULTIPLICITY |
1815 | struct ev_loop *loop = ev_default_loop_ptr; |
2017 | EV_P = ev_default_loop_ptr; |
1816 | #endif |
2018 | #endif |
1817 | |
2019 | |
1818 | postfork = 1; /* must be in line with ev_loop_fork */ |
2020 | postfork = 1; /* must be in line with ev_loop_fork */ |
1819 | } |
2021 | } |
1820 | |
2022 | |
… | |
… | |
1822 | |
2024 | |
1823 | void |
2025 | void |
1824 | ev_invoke (EV_P_ void *w, int revents) |
2026 | ev_invoke (EV_P_ void *w, int revents) |
1825 | { |
2027 | { |
1826 | EV_CB_INVOKE ((W)w, revents); |
2028 | EV_CB_INVOKE ((W)w, revents); |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | unsigned int |
|
|
2032 | ev_pending_count (EV_P) |
|
|
2033 | { |
|
|
2034 | int pri; |
|
|
2035 | unsigned int count = 0; |
|
|
2036 | |
|
|
2037 | for (pri = NUMPRI; pri--; ) |
|
|
2038 | count += pendingcnt [pri]; |
|
|
2039 | |
|
|
2040 | return count; |
1827 | } |
2041 | } |
1828 | |
2042 | |
1829 | void noinline |
2043 | void noinline |
1830 | ev_invoke_pending (EV_P) |
2044 | ev_invoke_pending (EV_P) |
1831 | { |
2045 | { |
… | |
… | |
1902 | EV_FREQUENT_CHECK; |
2116 | EV_FREQUENT_CHECK; |
1903 | feed_reverse (EV_A_ (W)w); |
2117 | feed_reverse (EV_A_ (W)w); |
1904 | } |
2118 | } |
1905 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2119 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1906 | |
2120 | |
1907 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2121 | feed_reverse_done (EV_A_ EV_TIMER); |
1908 | } |
2122 | } |
1909 | } |
2123 | } |
1910 | |
2124 | |
1911 | #if EV_PERIODIC_ENABLE |
2125 | #if EV_PERIODIC_ENABLE |
1912 | /* make periodics pending */ |
2126 | /* make periodics pending */ |
… | |
… | |
1965 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2179 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1966 | } |
2180 | } |
1967 | } |
2181 | } |
1968 | |
2182 | |
1969 | /* simply recalculate all periodics */ |
2183 | /* simply recalculate all periodics */ |
1970 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2184 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
1971 | static void noinline |
2185 | static void noinline |
1972 | periodics_reschedule (EV_P) |
2186 | periodics_reschedule (EV_P) |
1973 | { |
2187 | { |
1974 | int i; |
2188 | int i; |
1975 | |
2189 | |
… | |
… | |
2003 | ANHE_at_cache (*he); |
2217 | ANHE_at_cache (*he); |
2004 | } |
2218 | } |
2005 | } |
2219 | } |
2006 | |
2220 | |
2007 | /* fetch new monotonic and realtime times from the kernel */ |
2221 | /* fetch new monotonic and realtime times from the kernel */ |
2008 | /* also detetc if there was a timejump, and act accordingly */ |
2222 | /* also detect if there was a timejump, and act accordingly */ |
2009 | inline_speed void |
2223 | inline_speed void |
2010 | time_update (EV_P_ ev_tstamp max_block) |
2224 | time_update (EV_P_ ev_tstamp max_block) |
2011 | { |
2225 | { |
2012 | #if EV_USE_MONOTONIC |
2226 | #if EV_USE_MONOTONIC |
2013 | if (expect_true (have_monotonic)) |
2227 | if (expect_true (have_monotonic)) |
… | |
… | |
2073 | } |
2287 | } |
2074 | |
2288 | |
2075 | void |
2289 | void |
2076 | ev_loop (EV_P_ int flags) |
2290 | ev_loop (EV_P_ int flags) |
2077 | { |
2291 | { |
2078 | #if EV_MINIMAL < 2 |
2292 | #if EV_FEATURE_API |
2079 | ++loop_depth; |
2293 | ++loop_depth; |
2080 | #endif |
2294 | #endif |
2081 | |
2295 | |
|
|
2296 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2297 | |
2082 | loop_done = EVUNLOOP_CANCEL; |
2298 | loop_done = EVUNLOOP_CANCEL; |
2083 | |
2299 | |
2084 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2300 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2085 | |
2301 | |
2086 | do |
2302 | do |
2087 | { |
2303 | { |
2088 | #if EV_VERIFY >= 2 |
2304 | #if EV_VERIFY >= 2 |
2089 | ev_loop_verify (EV_A); |
2305 | ev_verify (EV_A); |
2090 | #endif |
2306 | #endif |
2091 | |
2307 | |
2092 | #ifndef _WIN32 |
2308 | #ifndef _WIN32 |
2093 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2309 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2094 | if (expect_false (getpid () != curpid)) |
2310 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2106 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2322 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2107 | EV_INVOKE_PENDING; |
2323 | EV_INVOKE_PENDING; |
2108 | } |
2324 | } |
2109 | #endif |
2325 | #endif |
2110 | |
2326 | |
|
|
2327 | #if EV_PREPARE_ENABLE |
2111 | /* queue prepare watchers (and execute them) */ |
2328 | /* queue prepare watchers (and execute them) */ |
2112 | if (expect_false (preparecnt)) |
2329 | if (expect_false (preparecnt)) |
2113 | { |
2330 | { |
2114 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2331 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2115 | EV_INVOKE_PENDING; |
2332 | EV_INVOKE_PENDING; |
2116 | } |
2333 | } |
|
|
2334 | #endif |
|
|
2335 | |
|
|
2336 | if (expect_false (loop_done)) |
|
|
2337 | break; |
2117 | |
2338 | |
2118 | /* we might have forked, so reify kernel state if necessary */ |
2339 | /* we might have forked, so reify kernel state if necessary */ |
2119 | if (expect_false (postfork)) |
2340 | if (expect_false (postfork)) |
2120 | loop_fork (EV_A); |
2341 | loop_fork (EV_A); |
2121 | |
2342 | |
… | |
… | |
2169 | waittime -= sleeptime; |
2390 | waittime -= sleeptime; |
2170 | } |
2391 | } |
2171 | } |
2392 | } |
2172 | } |
2393 | } |
2173 | |
2394 | |
2174 | #if EV_MINIMAL < 2 |
2395 | #if EV_FEATURE_API |
2175 | ++loop_count; |
2396 | ++loop_count; |
2176 | #endif |
2397 | #endif |
|
|
2398 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2177 | backend_poll (EV_A_ waittime); |
2399 | backend_poll (EV_A_ waittime); |
|
|
2400 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2178 | |
2401 | |
2179 | /* update ev_rt_now, do magic */ |
2402 | /* update ev_rt_now, do magic */ |
2180 | time_update (EV_A_ waittime + sleeptime); |
2403 | time_update (EV_A_ waittime + sleeptime); |
2181 | } |
2404 | } |
2182 | |
2405 | |
… | |
… | |
2189 | #if EV_IDLE_ENABLE |
2412 | #if EV_IDLE_ENABLE |
2190 | /* queue idle watchers unless other events are pending */ |
2413 | /* queue idle watchers unless other events are pending */ |
2191 | idle_reify (EV_A); |
2414 | idle_reify (EV_A); |
2192 | #endif |
2415 | #endif |
2193 | |
2416 | |
|
|
2417 | #if EV_CHECK_ENABLE |
2194 | /* queue check watchers, to be executed first */ |
2418 | /* queue check watchers, to be executed first */ |
2195 | if (expect_false (checkcnt)) |
2419 | if (expect_false (checkcnt)) |
2196 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2420 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2421 | #endif |
2197 | |
2422 | |
2198 | EV_INVOKE_PENDING; |
2423 | EV_INVOKE_PENDING; |
2199 | } |
2424 | } |
2200 | while (expect_true ( |
2425 | while (expect_true ( |
2201 | activecnt |
2426 | activecnt |
… | |
… | |
2204 | )); |
2429 | )); |
2205 | |
2430 | |
2206 | if (loop_done == EVUNLOOP_ONE) |
2431 | if (loop_done == EVUNLOOP_ONE) |
2207 | loop_done = EVUNLOOP_CANCEL; |
2432 | loop_done = EVUNLOOP_CANCEL; |
2208 | |
2433 | |
2209 | #if EV_MINIMAL < 2 |
2434 | #if EV_FEATURE_API |
2210 | --loop_depth; |
2435 | --loop_depth; |
2211 | #endif |
2436 | #endif |
2212 | } |
2437 | } |
2213 | |
2438 | |
2214 | void |
2439 | void |
… | |
… | |
2267 | inline_size void |
2492 | inline_size void |
2268 | wlist_del (WL *head, WL elem) |
2493 | wlist_del (WL *head, WL elem) |
2269 | { |
2494 | { |
2270 | while (*head) |
2495 | while (*head) |
2271 | { |
2496 | { |
2272 | if (*head == elem) |
2497 | if (expect_true (*head == elem)) |
2273 | { |
2498 | { |
2274 | *head = elem->next; |
2499 | *head = elem->next; |
2275 | return; |
2500 | break; |
2276 | } |
2501 | } |
2277 | |
2502 | |
2278 | head = &(*head)->next; |
2503 | head = &(*head)->next; |
2279 | } |
2504 | } |
2280 | } |
2505 | } |
… | |
… | |
2340 | |
2565 | |
2341 | if (expect_false (ev_is_active (w))) |
2566 | if (expect_false (ev_is_active (w))) |
2342 | return; |
2567 | return; |
2343 | |
2568 | |
2344 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2569 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2345 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2570 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2346 | |
2571 | |
2347 | EV_FREQUENT_CHECK; |
2572 | EV_FREQUENT_CHECK; |
2348 | |
2573 | |
2349 | ev_start (EV_A_ (W)w, 1); |
2574 | ev_start (EV_A_ (W)w, 1); |
2350 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2575 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2351 | wlist_add (&anfds[fd].head, (WL)w); |
2576 | wlist_add (&anfds[fd].head, (WL)w); |
2352 | |
2577 | |
2353 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2578 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2354 | w->events &= ~EV__IOFDSET; |
2579 | w->events &= ~EV__IOFDSET; |
2355 | |
2580 | |
2356 | EV_FREQUENT_CHECK; |
2581 | EV_FREQUENT_CHECK; |
2357 | } |
2582 | } |
2358 | |
2583 | |
… | |
… | |
2420 | timers [active] = timers [timercnt + HEAP0]; |
2645 | timers [active] = timers [timercnt + HEAP0]; |
2421 | adjustheap (timers, timercnt, active); |
2646 | adjustheap (timers, timercnt, active); |
2422 | } |
2647 | } |
2423 | } |
2648 | } |
2424 | |
2649 | |
2425 | EV_FREQUENT_CHECK; |
|
|
2426 | |
|
|
2427 | ev_at (w) -= mn_now; |
2650 | ev_at (w) -= mn_now; |
2428 | |
2651 | |
2429 | ev_stop (EV_A_ (W)w); |
2652 | ev_stop (EV_A_ (W)w); |
|
|
2653 | |
|
|
2654 | EV_FREQUENT_CHECK; |
2430 | } |
2655 | } |
2431 | |
2656 | |
2432 | void noinline |
2657 | void noinline |
2433 | ev_timer_again (EV_P_ ev_timer *w) |
2658 | ev_timer_again (EV_P_ ev_timer *w) |
2434 | { |
2659 | { |
… | |
… | |
2452 | } |
2677 | } |
2453 | |
2678 | |
2454 | EV_FREQUENT_CHECK; |
2679 | EV_FREQUENT_CHECK; |
2455 | } |
2680 | } |
2456 | |
2681 | |
|
|
2682 | ev_tstamp |
|
|
2683 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2684 | { |
|
|
2685 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2686 | } |
|
|
2687 | |
2457 | #if EV_PERIODIC_ENABLE |
2688 | #if EV_PERIODIC_ENABLE |
2458 | void noinline |
2689 | void noinline |
2459 | ev_periodic_start (EV_P_ ev_periodic *w) |
2690 | ev_periodic_start (EV_P_ ev_periodic *w) |
2460 | { |
2691 | { |
2461 | if (expect_false (ev_is_active (w))) |
2692 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2507 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2738 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2508 | adjustheap (periodics, periodiccnt, active); |
2739 | adjustheap (periodics, periodiccnt, active); |
2509 | } |
2740 | } |
2510 | } |
2741 | } |
2511 | |
2742 | |
2512 | EV_FREQUENT_CHECK; |
|
|
2513 | |
|
|
2514 | ev_stop (EV_A_ (W)w); |
2743 | ev_stop (EV_A_ (W)w); |
|
|
2744 | |
|
|
2745 | EV_FREQUENT_CHECK; |
2515 | } |
2746 | } |
2516 | |
2747 | |
2517 | void noinline |
2748 | void noinline |
2518 | ev_periodic_again (EV_P_ ev_periodic *w) |
2749 | ev_periodic_again (EV_P_ ev_periodic *w) |
2519 | { |
2750 | { |
… | |
… | |
2525 | |
2756 | |
2526 | #ifndef SA_RESTART |
2757 | #ifndef SA_RESTART |
2527 | # define SA_RESTART 0 |
2758 | # define SA_RESTART 0 |
2528 | #endif |
2759 | #endif |
2529 | |
2760 | |
|
|
2761 | #if EV_SIGNAL_ENABLE |
|
|
2762 | |
2530 | void noinline |
2763 | void noinline |
2531 | ev_signal_start (EV_P_ ev_signal *w) |
2764 | ev_signal_start (EV_P_ ev_signal *w) |
2532 | { |
2765 | { |
2533 | #if EV_MULTIPLICITY |
|
|
2534 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2535 | #endif |
|
|
2536 | if (expect_false (ev_is_active (w))) |
2766 | if (expect_false (ev_is_active (w))) |
2537 | return; |
2767 | return; |
2538 | |
2768 | |
2539 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2769 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2540 | |
2770 | |
2541 | evpipe_init (EV_A); |
2771 | #if EV_MULTIPLICITY |
|
|
2772 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2773 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2542 | |
2774 | |
2543 | EV_FREQUENT_CHECK; |
2775 | signals [w->signum - 1].loop = EV_A; |
|
|
2776 | #endif |
2544 | |
2777 | |
|
|
2778 | EV_FREQUENT_CHECK; |
|
|
2779 | |
|
|
2780 | #if EV_USE_SIGNALFD |
|
|
2781 | if (sigfd == -2) |
2545 | { |
2782 | { |
2546 | #ifndef _WIN32 |
2783 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2547 | sigset_t full, prev; |
2784 | if (sigfd < 0 && errno == EINVAL) |
2548 | sigfillset (&full); |
2785 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2549 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2550 | #endif |
|
|
2551 | |
2786 | |
2552 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2787 | if (sigfd >= 0) |
|
|
2788 | { |
|
|
2789 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2553 | |
2790 | |
2554 | #ifndef _WIN32 |
2791 | sigemptyset (&sigfd_set); |
2555 | sigprocmask (SIG_SETMASK, &prev, 0); |
2792 | |
2556 | #endif |
2793 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2794 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2795 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2796 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2797 | } |
2557 | } |
2798 | } |
|
|
2799 | |
|
|
2800 | if (sigfd >= 0) |
|
|
2801 | { |
|
|
2802 | /* TODO: check .head */ |
|
|
2803 | sigaddset (&sigfd_set, w->signum); |
|
|
2804 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2805 | |
|
|
2806 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2807 | } |
|
|
2808 | #endif |
2558 | |
2809 | |
2559 | ev_start (EV_A_ (W)w, 1); |
2810 | ev_start (EV_A_ (W)w, 1); |
2560 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2811 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2561 | |
2812 | |
2562 | if (!((WL)w)->next) |
2813 | if (!((WL)w)->next) |
|
|
2814 | # if EV_USE_SIGNALFD |
|
|
2815 | if (sigfd < 0) /*TODO*/ |
|
|
2816 | # endif |
2563 | { |
2817 | { |
2564 | #if _WIN32 |
2818 | # ifdef _WIN32 |
|
|
2819 | evpipe_init (EV_A); |
|
|
2820 | |
2565 | signal (w->signum, ev_sighandler); |
2821 | signal (w->signum, ev_sighandler); |
2566 | #else |
2822 | # else |
2567 | struct sigaction sa; |
2823 | struct sigaction sa; |
|
|
2824 | |
|
|
2825 | evpipe_init (EV_A); |
|
|
2826 | |
2568 | sa.sa_handler = ev_sighandler; |
2827 | sa.sa_handler = ev_sighandler; |
2569 | sigfillset (&sa.sa_mask); |
2828 | sigfillset (&sa.sa_mask); |
2570 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2829 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2571 | sigaction (w->signum, &sa, 0); |
2830 | sigaction (w->signum, &sa, 0); |
|
|
2831 | |
|
|
2832 | sigemptyset (&sa.sa_mask); |
|
|
2833 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2834 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2572 | #endif |
2835 | #endif |
2573 | } |
2836 | } |
2574 | |
2837 | |
2575 | EV_FREQUENT_CHECK; |
2838 | EV_FREQUENT_CHECK; |
2576 | } |
2839 | } |
2577 | |
2840 | |
2578 | void noinline |
2841 | void noinline |
… | |
… | |
2586 | |
2849 | |
2587 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2850 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2588 | ev_stop (EV_A_ (W)w); |
2851 | ev_stop (EV_A_ (W)w); |
2589 | |
2852 | |
2590 | if (!signals [w->signum - 1].head) |
2853 | if (!signals [w->signum - 1].head) |
|
|
2854 | { |
|
|
2855 | #if EV_MULTIPLICITY |
|
|
2856 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2857 | #endif |
|
|
2858 | #if EV_USE_SIGNALFD |
|
|
2859 | if (sigfd >= 0) |
|
|
2860 | { |
|
|
2861 | sigset_t ss; |
|
|
2862 | |
|
|
2863 | sigemptyset (&ss); |
|
|
2864 | sigaddset (&ss, w->signum); |
|
|
2865 | sigdelset (&sigfd_set, w->signum); |
|
|
2866 | |
|
|
2867 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2868 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2869 | } |
|
|
2870 | else |
|
|
2871 | #endif |
2591 | signal (w->signum, SIG_DFL); |
2872 | signal (w->signum, SIG_DFL); |
|
|
2873 | } |
2592 | |
2874 | |
2593 | EV_FREQUENT_CHECK; |
2875 | EV_FREQUENT_CHECK; |
2594 | } |
2876 | } |
|
|
2877 | |
|
|
2878 | #endif |
|
|
2879 | |
|
|
2880 | #if EV_CHILD_ENABLE |
2595 | |
2881 | |
2596 | void |
2882 | void |
2597 | ev_child_start (EV_P_ ev_child *w) |
2883 | ev_child_start (EV_P_ ev_child *w) |
2598 | { |
2884 | { |
2599 | #if EV_MULTIPLICITY |
2885 | #if EV_MULTIPLICITY |
… | |
… | |
2603 | return; |
2889 | return; |
2604 | |
2890 | |
2605 | EV_FREQUENT_CHECK; |
2891 | EV_FREQUENT_CHECK; |
2606 | |
2892 | |
2607 | ev_start (EV_A_ (W)w, 1); |
2893 | ev_start (EV_A_ (W)w, 1); |
2608 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2894 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2609 | |
2895 | |
2610 | EV_FREQUENT_CHECK; |
2896 | EV_FREQUENT_CHECK; |
2611 | } |
2897 | } |
2612 | |
2898 | |
2613 | void |
2899 | void |
… | |
… | |
2617 | if (expect_false (!ev_is_active (w))) |
2903 | if (expect_false (!ev_is_active (w))) |
2618 | return; |
2904 | return; |
2619 | |
2905 | |
2620 | EV_FREQUENT_CHECK; |
2906 | EV_FREQUENT_CHECK; |
2621 | |
2907 | |
2622 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2908 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2623 | ev_stop (EV_A_ (W)w); |
2909 | ev_stop (EV_A_ (W)w); |
2624 | |
2910 | |
2625 | EV_FREQUENT_CHECK; |
2911 | EV_FREQUENT_CHECK; |
2626 | } |
2912 | } |
|
|
2913 | |
|
|
2914 | #endif |
2627 | |
2915 | |
2628 | #if EV_STAT_ENABLE |
2916 | #if EV_STAT_ENABLE |
2629 | |
2917 | |
2630 | # ifdef _WIN32 |
2918 | # ifdef _WIN32 |
2631 | # undef lstat |
2919 | # undef lstat |
… | |
… | |
2637 | #define MIN_STAT_INTERVAL 0.1074891 |
2925 | #define MIN_STAT_INTERVAL 0.1074891 |
2638 | |
2926 | |
2639 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2927 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2640 | |
2928 | |
2641 | #if EV_USE_INOTIFY |
2929 | #if EV_USE_INOTIFY |
2642 | # define EV_INOTIFY_BUFSIZE 8192 |
2930 | |
|
|
2931 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2932 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2643 | |
2933 | |
2644 | static void noinline |
2934 | static void noinline |
2645 | infy_add (EV_P_ ev_stat *w) |
2935 | infy_add (EV_P_ ev_stat *w) |
2646 | { |
2936 | { |
2647 | 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); |
2937 | 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); |
2648 | |
2938 | |
2649 | if (w->wd < 0) |
2939 | if (w->wd >= 0) |
|
|
2940 | { |
|
|
2941 | struct statfs sfs; |
|
|
2942 | |
|
|
2943 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2944 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2945 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2946 | |
|
|
2947 | if (!fs_2625) |
|
|
2948 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2949 | else if (!statfs (w->path, &sfs) |
|
|
2950 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2951 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2952 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2953 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2954 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2955 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2956 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2957 | else |
|
|
2958 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2650 | { |
2959 | } |
|
|
2960 | else |
|
|
2961 | { |
|
|
2962 | /* can't use inotify, continue to stat */ |
2651 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2963 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2652 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2653 | |
2964 | |
2654 | /* monitor some parent directory for speedup hints */ |
2965 | /* if path is not there, monitor some parent directory for speedup hints */ |
2655 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2966 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2656 | /* but an efficiency issue only */ |
2967 | /* but an efficiency issue only */ |
2657 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2968 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2658 | { |
2969 | { |
2659 | char path [4096]; |
2970 | char path [4096]; |
… | |
… | |
2675 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2986 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2676 | } |
2987 | } |
2677 | } |
2988 | } |
2678 | |
2989 | |
2679 | if (w->wd >= 0) |
2990 | if (w->wd >= 0) |
2680 | { |
|
|
2681 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2991 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2682 | |
2992 | |
2683 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2993 | /* now re-arm timer, if required */ |
2684 | /* unless the filesystem it known to be local, we therefore still poll */ |
2994 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2685 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2686 | struct statfs sfs; |
|
|
2687 | |
|
|
2688 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2689 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2690 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2691 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2692 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2693 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2694 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2695 | return; |
|
|
2696 | |
|
|
2697 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2698 | ev_timer_again (EV_A_ &w->timer); |
2995 | ev_timer_again (EV_A_ &w->timer); |
2699 | } |
2996 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2700 | } |
2997 | } |
2701 | |
2998 | |
2702 | static void noinline |
2999 | static void noinline |
2703 | infy_del (EV_P_ ev_stat *w) |
3000 | infy_del (EV_P_ ev_stat *w) |
2704 | { |
3001 | { |
… | |
… | |
2707 | |
3004 | |
2708 | if (wd < 0) |
3005 | if (wd < 0) |
2709 | return; |
3006 | return; |
2710 | |
3007 | |
2711 | w->wd = -2; |
3008 | w->wd = -2; |
2712 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3009 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2713 | wlist_del (&fs_hash [slot].head, (WL)w); |
3010 | wlist_del (&fs_hash [slot].head, (WL)w); |
2714 | |
3011 | |
2715 | /* remove this watcher, if others are watching it, they will rearm */ |
3012 | /* remove this watcher, if others are watching it, they will rearm */ |
2716 | inotify_rm_watch (fs_fd, wd); |
3013 | inotify_rm_watch (fs_fd, wd); |
2717 | } |
3014 | } |
… | |
… | |
2719 | static void noinline |
3016 | static void noinline |
2720 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3017 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2721 | { |
3018 | { |
2722 | if (slot < 0) |
3019 | if (slot < 0) |
2723 | /* overflow, need to check for all hash slots */ |
3020 | /* overflow, need to check for all hash slots */ |
2724 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3021 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2725 | infy_wd (EV_A_ slot, wd, ev); |
3022 | infy_wd (EV_A_ slot, wd, ev); |
2726 | else |
3023 | else |
2727 | { |
3024 | { |
2728 | WL w_; |
3025 | WL w_; |
2729 | |
3026 | |
2730 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3027 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2731 | { |
3028 | { |
2732 | ev_stat *w = (ev_stat *)w_; |
3029 | ev_stat *w = (ev_stat *)w_; |
2733 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3030 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2734 | |
3031 | |
2735 | if (w->wd == wd || wd == -1) |
3032 | if (w->wd == wd || wd == -1) |
2736 | { |
3033 | { |
2737 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3034 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2738 | { |
3035 | { |
2739 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3036 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2740 | w->wd = -1; |
3037 | w->wd = -1; |
2741 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3038 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2742 | } |
3039 | } |
2743 | |
3040 | |
2744 | stat_timer_cb (EV_A_ &w->timer, 0); |
3041 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2749 | |
3046 | |
2750 | static void |
3047 | static void |
2751 | infy_cb (EV_P_ ev_io *w, int revents) |
3048 | infy_cb (EV_P_ ev_io *w, int revents) |
2752 | { |
3049 | { |
2753 | char buf [EV_INOTIFY_BUFSIZE]; |
3050 | char buf [EV_INOTIFY_BUFSIZE]; |
2754 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2755 | int ofs; |
3051 | int ofs; |
2756 | int len = read (fs_fd, buf, sizeof (buf)); |
3052 | int len = read (fs_fd, buf, sizeof (buf)); |
2757 | |
3053 | |
2758 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3054 | for (ofs = 0; ofs < len; ) |
|
|
3055 | { |
|
|
3056 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2759 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3057 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3058 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3059 | } |
|
|
3060 | } |
|
|
3061 | |
|
|
3062 | inline_size unsigned int |
|
|
3063 | ev_linux_version (void) |
|
|
3064 | { |
|
|
3065 | struct utsname buf; |
|
|
3066 | unsigned int v; |
|
|
3067 | int i; |
|
|
3068 | char *p = buf.release; |
|
|
3069 | |
|
|
3070 | if (uname (&buf)) |
|
|
3071 | return 0; |
|
|
3072 | |
|
|
3073 | for (i = 3+1; --i; ) |
|
|
3074 | { |
|
|
3075 | unsigned int c = 0; |
|
|
3076 | |
|
|
3077 | for (;;) |
|
|
3078 | { |
|
|
3079 | if (*p >= '0' && *p <= '9') |
|
|
3080 | c = c * 10 + *p++ - '0'; |
|
|
3081 | else |
|
|
3082 | { |
|
|
3083 | p += *p == '.'; |
|
|
3084 | break; |
|
|
3085 | } |
|
|
3086 | } |
|
|
3087 | |
|
|
3088 | v = (v << 8) | c; |
|
|
3089 | } |
|
|
3090 | |
|
|
3091 | return v; |
2760 | } |
3092 | } |
2761 | |
3093 | |
2762 | inline_size void |
3094 | inline_size void |
2763 | check_2625 (EV_P) |
3095 | ev_check_2625 (EV_P) |
2764 | { |
3096 | { |
2765 | /* kernels < 2.6.25 are borked |
3097 | /* kernels < 2.6.25 are borked |
2766 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3098 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2767 | */ |
3099 | */ |
2768 | struct utsname buf; |
3100 | if (ev_linux_version () < 0x020619) |
2769 | int major, minor, micro; |
|
|
2770 | |
|
|
2771 | if (uname (&buf)) |
|
|
2772 | return; |
3101 | return; |
2773 | |
3102 | |
2774 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2775 | return; |
|
|
2776 | |
|
|
2777 | if (major < 2 |
|
|
2778 | || (major == 2 && minor < 6) |
|
|
2779 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2780 | return; |
|
|
2781 | |
|
|
2782 | fs_2625 = 1; |
3103 | fs_2625 = 1; |
|
|
3104 | } |
|
|
3105 | |
|
|
3106 | inline_size int |
|
|
3107 | infy_newfd (void) |
|
|
3108 | { |
|
|
3109 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3110 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3111 | if (fd >= 0) |
|
|
3112 | return fd; |
|
|
3113 | #endif |
|
|
3114 | return inotify_init (); |
2783 | } |
3115 | } |
2784 | |
3116 | |
2785 | inline_size void |
3117 | inline_size void |
2786 | infy_init (EV_P) |
3118 | infy_init (EV_P) |
2787 | { |
3119 | { |
2788 | if (fs_fd != -2) |
3120 | if (fs_fd != -2) |
2789 | return; |
3121 | return; |
2790 | |
3122 | |
2791 | fs_fd = -1; |
3123 | fs_fd = -1; |
2792 | |
3124 | |
2793 | check_2625 (EV_A); |
3125 | ev_check_2625 (EV_A); |
2794 | |
3126 | |
2795 | fs_fd = inotify_init (); |
3127 | fs_fd = infy_newfd (); |
2796 | |
3128 | |
2797 | if (fs_fd >= 0) |
3129 | if (fs_fd >= 0) |
2798 | { |
3130 | { |
|
|
3131 | fd_intern (fs_fd); |
2799 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3132 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2800 | ev_set_priority (&fs_w, EV_MAXPRI); |
3133 | ev_set_priority (&fs_w, EV_MAXPRI); |
2801 | ev_io_start (EV_A_ &fs_w); |
3134 | ev_io_start (EV_A_ &fs_w); |
|
|
3135 | ev_unref (EV_A); |
2802 | } |
3136 | } |
2803 | } |
3137 | } |
2804 | |
3138 | |
2805 | inline_size void |
3139 | inline_size void |
2806 | infy_fork (EV_P) |
3140 | infy_fork (EV_P) |
… | |
… | |
2808 | int slot; |
3142 | int slot; |
2809 | |
3143 | |
2810 | if (fs_fd < 0) |
3144 | if (fs_fd < 0) |
2811 | return; |
3145 | return; |
2812 | |
3146 | |
|
|
3147 | ev_ref (EV_A); |
|
|
3148 | ev_io_stop (EV_A_ &fs_w); |
2813 | close (fs_fd); |
3149 | close (fs_fd); |
2814 | fs_fd = inotify_init (); |
3150 | fs_fd = infy_newfd (); |
2815 | |
3151 | |
|
|
3152 | if (fs_fd >= 0) |
|
|
3153 | { |
|
|
3154 | fd_intern (fs_fd); |
|
|
3155 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3156 | ev_io_start (EV_A_ &fs_w); |
|
|
3157 | ev_unref (EV_A); |
|
|
3158 | } |
|
|
3159 | |
2816 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3160 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2817 | { |
3161 | { |
2818 | WL w_ = fs_hash [slot].head; |
3162 | WL w_ = fs_hash [slot].head; |
2819 | fs_hash [slot].head = 0; |
3163 | fs_hash [slot].head = 0; |
2820 | |
3164 | |
2821 | while (w_) |
3165 | while (w_) |
… | |
… | |
2826 | w->wd = -1; |
3170 | w->wd = -1; |
2827 | |
3171 | |
2828 | if (fs_fd >= 0) |
3172 | if (fs_fd >= 0) |
2829 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3173 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2830 | else |
3174 | else |
|
|
3175 | { |
|
|
3176 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3177 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2831 | ev_timer_again (EV_A_ &w->timer); |
3178 | ev_timer_again (EV_A_ &w->timer); |
|
|
3179 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3180 | } |
2832 | } |
3181 | } |
2833 | } |
3182 | } |
2834 | } |
3183 | } |
2835 | |
3184 | |
2836 | #endif |
3185 | #endif |
… | |
… | |
2853 | static void noinline |
3202 | static void noinline |
2854 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3203 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2855 | { |
3204 | { |
2856 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3205 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2857 | |
3206 | |
2858 | /* we copy this here each the time so that */ |
3207 | ev_statdata prev = w->attr; |
2859 | /* prev has the old value when the callback gets invoked */ |
|
|
2860 | w->prev = w->attr; |
|
|
2861 | ev_stat_stat (EV_A_ w); |
3208 | ev_stat_stat (EV_A_ w); |
2862 | |
3209 | |
2863 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3210 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2864 | if ( |
3211 | if ( |
2865 | w->prev.st_dev != w->attr.st_dev |
3212 | prev.st_dev != w->attr.st_dev |
2866 | || w->prev.st_ino != w->attr.st_ino |
3213 | || prev.st_ino != w->attr.st_ino |
2867 | || w->prev.st_mode != w->attr.st_mode |
3214 | || prev.st_mode != w->attr.st_mode |
2868 | || w->prev.st_nlink != w->attr.st_nlink |
3215 | || prev.st_nlink != w->attr.st_nlink |
2869 | || w->prev.st_uid != w->attr.st_uid |
3216 | || prev.st_uid != w->attr.st_uid |
2870 | || w->prev.st_gid != w->attr.st_gid |
3217 | || prev.st_gid != w->attr.st_gid |
2871 | || w->prev.st_rdev != w->attr.st_rdev |
3218 | || prev.st_rdev != w->attr.st_rdev |
2872 | || w->prev.st_size != w->attr.st_size |
3219 | || prev.st_size != w->attr.st_size |
2873 | || w->prev.st_atime != w->attr.st_atime |
3220 | || prev.st_atime != w->attr.st_atime |
2874 | || w->prev.st_mtime != w->attr.st_mtime |
3221 | || prev.st_mtime != w->attr.st_mtime |
2875 | || w->prev.st_ctime != w->attr.st_ctime |
3222 | || prev.st_ctime != w->attr.st_ctime |
2876 | ) { |
3223 | ) { |
|
|
3224 | /* we only update w->prev on actual differences */ |
|
|
3225 | /* in case we test more often than invoke the callback, */ |
|
|
3226 | /* to ensure that prev is always different to attr */ |
|
|
3227 | w->prev = prev; |
|
|
3228 | |
2877 | #if EV_USE_INOTIFY |
3229 | #if EV_USE_INOTIFY |
2878 | if (fs_fd >= 0) |
3230 | if (fs_fd >= 0) |
2879 | { |
3231 | { |
2880 | infy_del (EV_A_ w); |
3232 | infy_del (EV_A_ w); |
2881 | infy_add (EV_A_ w); |
3233 | infy_add (EV_A_ w); |
… | |
… | |
2906 | |
3258 | |
2907 | if (fs_fd >= 0) |
3259 | if (fs_fd >= 0) |
2908 | infy_add (EV_A_ w); |
3260 | infy_add (EV_A_ w); |
2909 | else |
3261 | else |
2910 | #endif |
3262 | #endif |
|
|
3263 | { |
2911 | ev_timer_again (EV_A_ &w->timer); |
3264 | ev_timer_again (EV_A_ &w->timer); |
|
|
3265 | ev_unref (EV_A); |
|
|
3266 | } |
2912 | |
3267 | |
2913 | ev_start (EV_A_ (W)w, 1); |
3268 | ev_start (EV_A_ (W)w, 1); |
2914 | |
3269 | |
2915 | EV_FREQUENT_CHECK; |
3270 | EV_FREQUENT_CHECK; |
2916 | } |
3271 | } |
… | |
… | |
2925 | EV_FREQUENT_CHECK; |
3280 | EV_FREQUENT_CHECK; |
2926 | |
3281 | |
2927 | #if EV_USE_INOTIFY |
3282 | #if EV_USE_INOTIFY |
2928 | infy_del (EV_A_ w); |
3283 | infy_del (EV_A_ w); |
2929 | #endif |
3284 | #endif |
|
|
3285 | |
|
|
3286 | if (ev_is_active (&w->timer)) |
|
|
3287 | { |
|
|
3288 | ev_ref (EV_A); |
2930 | ev_timer_stop (EV_A_ &w->timer); |
3289 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3290 | } |
2931 | |
3291 | |
2932 | ev_stop (EV_A_ (W)w); |
3292 | ev_stop (EV_A_ (W)w); |
2933 | |
3293 | |
2934 | EV_FREQUENT_CHECK; |
3294 | EV_FREQUENT_CHECK; |
2935 | } |
3295 | } |
… | |
… | |
2980 | |
3340 | |
2981 | EV_FREQUENT_CHECK; |
3341 | EV_FREQUENT_CHECK; |
2982 | } |
3342 | } |
2983 | #endif |
3343 | #endif |
2984 | |
3344 | |
|
|
3345 | #if EV_PREPARE_ENABLE |
2985 | void |
3346 | void |
2986 | ev_prepare_start (EV_P_ ev_prepare *w) |
3347 | ev_prepare_start (EV_P_ ev_prepare *w) |
2987 | { |
3348 | { |
2988 | if (expect_false (ev_is_active (w))) |
3349 | if (expect_false (ev_is_active (w))) |
2989 | return; |
3350 | return; |
… | |
… | |
3015 | |
3376 | |
3016 | ev_stop (EV_A_ (W)w); |
3377 | ev_stop (EV_A_ (W)w); |
3017 | |
3378 | |
3018 | EV_FREQUENT_CHECK; |
3379 | EV_FREQUENT_CHECK; |
3019 | } |
3380 | } |
|
|
3381 | #endif |
3020 | |
3382 | |
|
|
3383 | #if EV_CHECK_ENABLE |
3021 | void |
3384 | void |
3022 | ev_check_start (EV_P_ ev_check *w) |
3385 | ev_check_start (EV_P_ ev_check *w) |
3023 | { |
3386 | { |
3024 | if (expect_false (ev_is_active (w))) |
3387 | if (expect_false (ev_is_active (w))) |
3025 | return; |
3388 | return; |
… | |
… | |
3051 | |
3414 | |
3052 | ev_stop (EV_A_ (W)w); |
3415 | ev_stop (EV_A_ (W)w); |
3053 | |
3416 | |
3054 | EV_FREQUENT_CHECK; |
3417 | EV_FREQUENT_CHECK; |
3055 | } |
3418 | } |
|
|
3419 | #endif |
3056 | |
3420 | |
3057 | #if EV_EMBED_ENABLE |
3421 | #if EV_EMBED_ENABLE |
3058 | void noinline |
3422 | void noinline |
3059 | ev_embed_sweep (EV_P_ ev_embed *w) |
3423 | ev_embed_sweep (EV_P_ ev_embed *w) |
3060 | { |
3424 | { |
… | |
… | |
3076 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3440 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3077 | { |
3441 | { |
3078 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3442 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3079 | |
3443 | |
3080 | { |
3444 | { |
3081 | struct ev_loop *loop = w->other; |
3445 | EV_P = w->other; |
3082 | |
3446 | |
3083 | while (fdchangecnt) |
3447 | while (fdchangecnt) |
3084 | { |
3448 | { |
3085 | fd_reify (EV_A); |
3449 | fd_reify (EV_A); |
3086 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3450 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3094 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3458 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3095 | |
3459 | |
3096 | ev_embed_stop (EV_A_ w); |
3460 | ev_embed_stop (EV_A_ w); |
3097 | |
3461 | |
3098 | { |
3462 | { |
3099 | struct ev_loop *loop = w->other; |
3463 | EV_P = w->other; |
3100 | |
3464 | |
3101 | ev_loop_fork (EV_A); |
3465 | ev_loop_fork (EV_A); |
3102 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3466 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3103 | } |
3467 | } |
3104 | |
3468 | |
… | |
… | |
3118 | { |
3482 | { |
3119 | if (expect_false (ev_is_active (w))) |
3483 | if (expect_false (ev_is_active (w))) |
3120 | return; |
3484 | return; |
3121 | |
3485 | |
3122 | { |
3486 | { |
3123 | struct ev_loop *loop = w->other; |
3487 | EV_P = w->other; |
3124 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3488 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3125 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3489 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3126 | } |
3490 | } |
3127 | |
3491 | |
3128 | EV_FREQUENT_CHECK; |
3492 | EV_FREQUENT_CHECK; |
… | |
… | |
3155 | |
3519 | |
3156 | ev_io_stop (EV_A_ &w->io); |
3520 | ev_io_stop (EV_A_ &w->io); |
3157 | ev_prepare_stop (EV_A_ &w->prepare); |
3521 | ev_prepare_stop (EV_A_ &w->prepare); |
3158 | ev_fork_stop (EV_A_ &w->fork); |
3522 | ev_fork_stop (EV_A_ &w->fork); |
3159 | |
3523 | |
|
|
3524 | ev_stop (EV_A_ (W)w); |
|
|
3525 | |
3160 | EV_FREQUENT_CHECK; |
3526 | EV_FREQUENT_CHECK; |
3161 | } |
3527 | } |
3162 | #endif |
3528 | #endif |
3163 | |
3529 | |
3164 | #if EV_FORK_ENABLE |
3530 | #if EV_FORK_ENABLE |
… | |
… | |
3240 | |
3606 | |
3241 | void |
3607 | void |
3242 | ev_async_send (EV_P_ ev_async *w) |
3608 | ev_async_send (EV_P_ ev_async *w) |
3243 | { |
3609 | { |
3244 | w->sent = 1; |
3610 | w->sent = 1; |
3245 | evpipe_write (EV_A_ &gotasync); |
3611 | evpipe_write (EV_A_ &async_pending); |
3246 | } |
3612 | } |
3247 | #endif |
3613 | #endif |
3248 | |
3614 | |
3249 | /*****************************************************************************/ |
3615 | /*****************************************************************************/ |
3250 | |
3616 | |
… | |
… | |
3290 | { |
3656 | { |
3291 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3657 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3292 | |
3658 | |
3293 | if (expect_false (!once)) |
3659 | if (expect_false (!once)) |
3294 | { |
3660 | { |
3295 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3661 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3296 | return; |
3662 | return; |
3297 | } |
3663 | } |
3298 | |
3664 | |
3299 | once->cb = cb; |
3665 | once->cb = cb; |
3300 | once->arg = arg; |
3666 | once->arg = arg; |
… | |
… | |
3387 | if (types & EV_ASYNC) |
3753 | if (types & EV_ASYNC) |
3388 | for (i = asynccnt; i--; ) |
3754 | for (i = asynccnt; i--; ) |
3389 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3755 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3390 | #endif |
3756 | #endif |
3391 | |
3757 | |
|
|
3758 | #if EV_PREPARE_ENABLE |
3392 | if (types & EV_PREPARE) |
3759 | if (types & EV_PREPARE) |
3393 | for (i = preparecnt; i--; ) |
3760 | for (i = preparecnt; i--; ) |
3394 | #if EV_EMBED_ENABLE |
3761 | # if EV_EMBED_ENABLE |
3395 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3762 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3396 | #endif |
3763 | # endif |
3397 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3764 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3765 | #endif |
3398 | |
3766 | |
|
|
3767 | #if EV_CHECK_ENABLE |
3399 | if (types & EV_CHECK) |
3768 | if (types & EV_CHECK) |
3400 | for (i = checkcnt; i--; ) |
3769 | for (i = checkcnt; i--; ) |
3401 | cb (EV_A_ EV_CHECK, checks [i]); |
3770 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3771 | #endif |
3402 | |
3772 | |
|
|
3773 | #if EV_SIGNAL_ENABLE |
3403 | if (types & EV_SIGNAL) |
3774 | if (types & EV_SIGNAL) |
3404 | for (i = 0; i < signalmax; ++i) |
3775 | for (i = 0; i < EV_NSIG - 1; ++i) |
3405 | for (wl = signals [i].head; wl; ) |
3776 | for (wl = signals [i].head; wl; ) |
3406 | { |
3777 | { |
3407 | wn = wl->next; |
3778 | wn = wl->next; |
3408 | cb (EV_A_ EV_SIGNAL, wl); |
3779 | cb (EV_A_ EV_SIGNAL, wl); |
3409 | wl = wn; |
3780 | wl = wn; |
3410 | } |
3781 | } |
|
|
3782 | #endif |
3411 | |
3783 | |
|
|
3784 | #if EV_CHILD_ENABLE |
3412 | if (types & EV_CHILD) |
3785 | if (types & EV_CHILD) |
3413 | for (i = EV_PID_HASHSIZE; i--; ) |
3786 | for (i = (EV_PID_HASHSIZE); i--; ) |
3414 | for (wl = childs [i]; wl; ) |
3787 | for (wl = childs [i]; wl; ) |
3415 | { |
3788 | { |
3416 | wn = wl->next; |
3789 | wn = wl->next; |
3417 | cb (EV_A_ EV_CHILD, wl); |
3790 | cb (EV_A_ EV_CHILD, wl); |
3418 | wl = wn; |
3791 | wl = wn; |
3419 | } |
3792 | } |
|
|
3793 | #endif |
3420 | /* EV_STAT 0x00001000 /* stat data changed */ |
3794 | /* EV_STAT 0x00001000 /* stat data changed */ |
3421 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3795 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3422 | } |
3796 | } |
3423 | #endif |
3797 | #endif |
3424 | |
3798 | |