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 | * |
… | |
… | |
79 | # endif |
79 | # endif |
80 | # endif |
80 | # endif |
81 | |
81 | |
82 | # ifndef EV_USE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
84 | # define EV_USE_NANOSLEEP 1 |
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
85 | # else |
85 | # else |
86 | # define EV_USE_NANOSLEEP 0 |
86 | # define EV_USE_NANOSLEEP 0 |
87 | # endif |
87 | # endif |
88 | # endif |
88 | # endif |
89 | |
89 | |
90 | # ifndef EV_USE_SELECT |
90 | # ifndef EV_USE_SELECT |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
92 | # define EV_USE_SELECT 1 |
92 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
93 | # else |
93 | # else |
94 | # define EV_USE_SELECT 0 |
94 | # define EV_USE_SELECT 0 |
95 | # endif |
95 | # endif |
96 | # endif |
96 | # endif |
97 | |
97 | |
98 | # ifndef EV_USE_POLL |
98 | # ifndef EV_USE_POLL |
99 | # if HAVE_POLL && HAVE_POLL_H |
99 | # if HAVE_POLL && HAVE_POLL_H |
100 | # define EV_USE_POLL 1 |
100 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
101 | # else |
101 | # else |
102 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
103 | # endif |
103 | # endif |
104 | # endif |
104 | # endif |
105 | |
105 | |
106 | # ifndef EV_USE_EPOLL |
106 | # ifndef EV_USE_EPOLL |
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
108 | # define EV_USE_EPOLL 1 |
108 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
109 | # else |
109 | # else |
110 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
111 | # endif |
111 | # endif |
112 | # endif |
112 | # endif |
113 | |
113 | |
114 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
117 | # else |
117 | # else |
118 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
119 | # endif |
119 | # endif |
120 | # endif |
120 | # endif |
121 | |
121 | |
122 | # ifndef EV_USE_PORT |
122 | # ifndef EV_USE_PORT |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
124 | # define EV_USE_PORT 1 |
124 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
125 | # else |
125 | # else |
126 | # define EV_USE_PORT 0 |
126 | # define EV_USE_PORT 0 |
127 | # endif |
127 | # endif |
128 | # endif |
128 | # endif |
129 | |
129 | |
130 | # ifndef EV_USE_INOTIFY |
130 | # ifndef EV_USE_INOTIFY |
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # define EV_USE_INOTIFY 1 |
132 | # define EV_USE_INOTIFY EV_FEATURE_OS |
133 | # else |
133 | # else |
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
135 | # endif |
135 | # endif |
136 | # endif |
136 | # endif |
137 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
138 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
139 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
140 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD EV_FEATURE_OS |
141 | # else |
149 | # else |
142 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
143 | # endif |
151 | # endif |
144 | # endif |
152 | # endif |
145 | |
153 | |
146 | #endif |
154 | #endif |
147 | |
155 | |
148 | #include <math.h> |
156 | #include <math.h> |
149 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
150 | #include <fcntl.h> |
159 | #include <fcntl.h> |
151 | #include <stddef.h> |
160 | #include <stddef.h> |
152 | |
161 | |
153 | #include <stdio.h> |
162 | #include <stdio.h> |
154 | |
163 | |
155 | #include <assert.h> |
164 | #include <assert.h> |
156 | #include <errno.h> |
165 | #include <errno.h> |
157 | #include <sys/types.h> |
166 | #include <sys/types.h> |
158 | #include <time.h> |
167 | #include <time.h> |
|
|
168 | #include <limits.h> |
159 | |
169 | |
160 | #include <signal.h> |
170 | #include <signal.h> |
161 | |
171 | |
162 | #ifdef EV_H |
172 | #ifdef EV_H |
163 | # include EV_H |
173 | # include EV_H |
… | |
… | |
174 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
175 | # include <windows.h> |
185 | # include <windows.h> |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
178 | # endif |
188 | # endif |
|
|
189 | # undef EV_AVOID_STDIO |
179 | #endif |
190 | #endif |
180 | |
191 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
193 | |
|
|
194 | /* try to deduce the maximum number of signals on this platform */ |
|
|
195 | #if defined (EV_NSIG) |
|
|
196 | /* use what's provided */ |
|
|
197 | #elif defined (NSIG) |
|
|
198 | # define EV_NSIG (NSIG) |
|
|
199 | #elif defined(_NSIG) |
|
|
200 | # define EV_NSIG (_NSIG) |
|
|
201 | #elif defined (SIGMAX) |
|
|
202 | # define EV_NSIG (SIGMAX+1) |
|
|
203 | #elif defined (SIG_MAX) |
|
|
204 | # define EV_NSIG (SIG_MAX+1) |
|
|
205 | #elif defined (_SIG_MAX) |
|
|
206 | # define EV_NSIG (_SIG_MAX+1) |
|
|
207 | #elif defined (MAXSIG) |
|
|
208 | # define EV_NSIG (MAXSIG+1) |
|
|
209 | #elif defined (MAX_SIG) |
|
|
210 | # define EV_NSIG (MAX_SIG+1) |
|
|
211 | #elif defined (SIGARRAYSIZE) |
|
|
212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
|
|
213 | #elif defined (_sys_nsig) |
|
|
214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
215 | #else |
|
|
216 | # error "unable to find value for NSIG, please report" |
|
|
217 | /* to make it compile regardless, just remove the above line, */ |
|
|
218 | /* but consider reporting it, too! :) */ |
|
|
219 | # define EV_NSIG 65 |
|
|
220 | #endif |
182 | |
221 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
222 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
223 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
224 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
186 | # else |
225 | # else |
187 | # define EV_USE_CLOCK_SYSCALL 0 |
226 | # define EV_USE_CLOCK_SYSCALL 0 |
188 | # endif |
227 | # endif |
189 | #endif |
228 | #endif |
190 | |
229 | |
191 | #ifndef EV_USE_MONOTONIC |
230 | #ifndef EV_USE_MONOTONIC |
192 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
193 | # define EV_USE_MONOTONIC 1 |
232 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
194 | # else |
233 | # else |
195 | # define EV_USE_MONOTONIC 0 |
234 | # define EV_USE_MONOTONIC 0 |
196 | # endif |
235 | # endif |
197 | #endif |
236 | #endif |
198 | |
237 | |
… | |
… | |
200 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
239 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
201 | #endif |
240 | #endif |
202 | |
241 | |
203 | #ifndef EV_USE_NANOSLEEP |
242 | #ifndef EV_USE_NANOSLEEP |
204 | # if _POSIX_C_SOURCE >= 199309L |
243 | # if _POSIX_C_SOURCE >= 199309L |
205 | # define EV_USE_NANOSLEEP 1 |
244 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
206 | # else |
245 | # else |
207 | # define EV_USE_NANOSLEEP 0 |
246 | # define EV_USE_NANOSLEEP 0 |
208 | # endif |
247 | # endif |
209 | #endif |
248 | #endif |
210 | |
249 | |
211 | #ifndef EV_USE_SELECT |
250 | #ifndef EV_USE_SELECT |
212 | # define EV_USE_SELECT 1 |
251 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
213 | #endif |
252 | #endif |
214 | |
253 | |
215 | #ifndef EV_USE_POLL |
254 | #ifndef EV_USE_POLL |
216 | # ifdef _WIN32 |
255 | # ifdef _WIN32 |
217 | # define EV_USE_POLL 0 |
256 | # define EV_USE_POLL 0 |
218 | # else |
257 | # else |
219 | # define EV_USE_POLL 1 |
258 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
220 | # endif |
259 | # endif |
221 | #endif |
260 | #endif |
222 | |
261 | |
223 | #ifndef EV_USE_EPOLL |
262 | #ifndef EV_USE_EPOLL |
224 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
263 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
225 | # define EV_USE_EPOLL 1 |
264 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
226 | # else |
265 | # else |
227 | # define EV_USE_EPOLL 0 |
266 | # define EV_USE_EPOLL 0 |
228 | # endif |
267 | # endif |
229 | #endif |
268 | #endif |
230 | |
269 | |
… | |
… | |
236 | # define EV_USE_PORT 0 |
275 | # define EV_USE_PORT 0 |
237 | #endif |
276 | #endif |
238 | |
277 | |
239 | #ifndef EV_USE_INOTIFY |
278 | #ifndef EV_USE_INOTIFY |
240 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
279 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
241 | # define EV_USE_INOTIFY 1 |
280 | # define EV_USE_INOTIFY EV_FEATURE_OS |
242 | # else |
281 | # else |
243 | # define EV_USE_INOTIFY 0 |
282 | # define EV_USE_INOTIFY 0 |
244 | # endif |
283 | # endif |
245 | #endif |
284 | #endif |
246 | |
285 | |
247 | #ifndef EV_PID_HASHSIZE |
286 | #ifndef EV_PID_HASHSIZE |
248 | # if EV_MINIMAL |
287 | # 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 |
288 | #endif |
254 | |
289 | |
255 | #ifndef EV_INOTIFY_HASHSIZE |
290 | #ifndef EV_INOTIFY_HASHSIZE |
256 | # if EV_MINIMAL |
291 | # 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 |
292 | #endif |
262 | |
293 | |
263 | #ifndef EV_USE_EVENTFD |
294 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
295 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
296 | # define EV_USE_EVENTFD EV_FEATURE_OS |
266 | # else |
297 | # else |
267 | # define EV_USE_EVENTFD 0 |
298 | # define EV_USE_EVENTFD 0 |
|
|
299 | # endif |
|
|
300 | #endif |
|
|
301 | |
|
|
302 | #ifndef EV_USE_SIGNALFD |
|
|
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
304 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
|
|
305 | # else |
|
|
306 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
307 | # endif |
269 | #endif |
308 | #endif |
270 | |
309 | |
271 | #if 0 /* debugging */ |
310 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
311 | # define EV_VERIFY 3 |
273 | # define EV_USE_4HEAP 1 |
312 | # define EV_USE_4HEAP 1 |
274 | # define EV_HEAP_CACHE_AT 1 |
313 | # define EV_HEAP_CACHE_AT 1 |
275 | #endif |
314 | #endif |
276 | |
315 | |
277 | #ifndef EV_VERIFY |
316 | #ifndef EV_VERIFY |
278 | # define EV_VERIFY !EV_MINIMAL |
317 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
279 | #endif |
318 | #endif |
280 | |
319 | |
281 | #ifndef EV_USE_4HEAP |
320 | #ifndef EV_USE_4HEAP |
282 | # define EV_USE_4HEAP !EV_MINIMAL |
321 | # define EV_USE_4HEAP EV_FEATURE_DATA |
283 | #endif |
322 | #endif |
284 | |
323 | |
285 | #ifndef EV_HEAP_CACHE_AT |
324 | #ifndef EV_HEAP_CACHE_AT |
286 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
325 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
287 | #endif |
326 | #endif |
288 | |
327 | |
289 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
328 | /* 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. */ |
329 | /* which makes programs even slower. might work on other unices, too. */ |
291 | #if EV_USE_CLOCK_SYSCALL |
330 | #if EV_USE_CLOCK_SYSCALL |
… | |
… | |
300 | # endif |
339 | # endif |
301 | #endif |
340 | #endif |
302 | |
341 | |
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
342 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
304 | |
343 | |
|
|
344 | #ifdef _AIX |
|
|
345 | /* AIX has a completely broken poll.h header */ |
|
|
346 | # undef EV_USE_POLL |
|
|
347 | # define EV_USE_POLL 0 |
|
|
348 | #endif |
|
|
349 | |
305 | #ifndef CLOCK_MONOTONIC |
350 | #ifndef CLOCK_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
351 | # undef EV_USE_MONOTONIC |
307 | # define EV_USE_MONOTONIC 0 |
352 | # define EV_USE_MONOTONIC 0 |
308 | #endif |
353 | #endif |
309 | |
354 | |
… | |
… | |
339 | #endif |
384 | #endif |
340 | |
385 | |
341 | #if EV_USE_EVENTFD |
386 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
387 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
388 | # include <stdint.h> |
|
|
389 | # ifndef EFD_NONBLOCK |
|
|
390 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
391 | # endif |
|
|
392 | # ifndef EFD_CLOEXEC |
|
|
393 | # ifdef O_CLOEXEC |
|
|
394 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
395 | # else |
|
|
396 | # define EFD_CLOEXEC 02000000 |
|
|
397 | # endif |
|
|
398 | # endif |
344 | # ifdef __cplusplus |
399 | # ifdef __cplusplus |
345 | extern "C" { |
400 | extern "C" { |
346 | # endif |
401 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
402 | int (eventfd) (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
403 | # ifdef __cplusplus |
349 | } |
404 | } |
350 | # endif |
405 | # endif |
351 | #endif |
406 | #endif |
352 | |
407 | |
|
|
408 | #if EV_USE_SIGNALFD |
|
|
409 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
410 | # include <stdint.h> |
|
|
411 | # ifndef SFD_NONBLOCK |
|
|
412 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
413 | # endif |
|
|
414 | # ifndef SFD_CLOEXEC |
|
|
415 | # ifdef O_CLOEXEC |
|
|
416 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
417 | # else |
|
|
418 | # define SFD_CLOEXEC 02000000 |
|
|
419 | # endif |
|
|
420 | # endif |
|
|
421 | # ifdef __cplusplus |
|
|
422 | extern "C" { |
|
|
423 | # endif |
|
|
424 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
425 | |
|
|
426 | struct signalfd_siginfo |
|
|
427 | { |
|
|
428 | uint32_t ssi_signo; |
|
|
429 | char pad[128 - sizeof (uint32_t)]; |
|
|
430 | }; |
|
|
431 | # ifdef __cplusplus |
|
|
432 | } |
|
|
433 | # endif |
|
|
434 | #endif |
|
|
435 | |
|
|
436 | |
353 | /**/ |
437 | /**/ |
354 | |
438 | |
355 | #if EV_VERIFY >= 3 |
439 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
440 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
357 | #else |
441 | #else |
358 | # define EV_FREQUENT_CHECK do { } while (0) |
442 | # define EV_FREQUENT_CHECK do { } while (0) |
359 | #endif |
443 | #endif |
360 | |
444 | |
361 | /* |
445 | /* |
… | |
… | |
368 | */ |
452 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
453 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
454 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
455 | #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) */ |
456 | #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 | |
457 | |
375 | #if __GNUC__ >= 4 |
458 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
459 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
460 | # define noinline __attribute__ ((noinline)) |
378 | #else |
461 | #else |
… | |
… | |
385 | |
468 | |
386 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_false(expr) expect ((expr) != 0, 0) |
387 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define expect_true(expr) expect ((expr) != 0, 1) |
388 | #define inline_size static inline |
471 | #define inline_size static inline |
389 | |
472 | |
390 | #if EV_MINIMAL |
473 | #if EV_FEATURE_CODE |
|
|
474 | # define inline_speed static inline |
|
|
475 | #else |
391 | # define inline_speed static noinline |
476 | # define inline_speed static noinline |
|
|
477 | #endif |
|
|
478 | |
|
|
479 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
480 | |
|
|
481 | #if EV_MINPRI == EV_MAXPRI |
|
|
482 | # define ABSPRI(w) (((W)w), 0) |
392 | #else |
483 | #else |
393 | # define inline_speed static inline |
|
|
394 | #endif |
|
|
395 | |
|
|
396 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
397 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
484 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
485 | #endif |
398 | |
486 | |
399 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
487 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
400 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
488 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
401 | |
489 | |
402 | typedef ev_watcher *W; |
490 | typedef ev_watcher *W; |
… | |
… | |
414 | |
502 | |
415 | #if EV_USE_MONOTONIC |
503 | #if EV_USE_MONOTONIC |
416 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
504 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
417 | #endif |
505 | #endif |
418 | |
506 | |
|
|
507 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
508 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
509 | #endif |
|
|
510 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
511 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
512 | #endif |
|
|
513 | #ifndef EV_WIN32_CLOSE_FD |
|
|
514 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
515 | #endif |
|
|
516 | |
419 | #ifdef _WIN32 |
517 | #ifdef _WIN32 |
420 | # include "ev_win32.c" |
518 | # include "ev_win32.c" |
421 | #endif |
519 | #endif |
422 | |
520 | |
423 | /*****************************************************************************/ |
521 | /*****************************************************************************/ |
|
|
522 | |
|
|
523 | #if EV_AVOID_STDIO |
|
|
524 | static void noinline |
|
|
525 | ev_printerr (const char *msg) |
|
|
526 | { |
|
|
527 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
528 | } |
|
|
529 | #endif |
424 | |
530 | |
425 | static void (*syserr_cb)(const char *msg); |
531 | static void (*syserr_cb)(const char *msg); |
426 | |
532 | |
427 | void |
533 | void |
428 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
534 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
438 | |
544 | |
439 | if (syserr_cb) |
545 | if (syserr_cb) |
440 | syserr_cb (msg); |
546 | syserr_cb (msg); |
441 | else |
547 | else |
442 | { |
548 | { |
|
|
549 | #if EV_AVOID_STDIO |
|
|
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
|
|
553 | ev_printerr (": "); |
|
|
554 | ev_printerr (err); |
|
|
555 | ev_printerr ("\n"); |
|
|
556 | #else |
443 | perror (msg); |
557 | perror (msg); |
|
|
558 | #endif |
444 | abort (); |
559 | abort (); |
445 | } |
560 | } |
446 | } |
561 | } |
447 | |
562 | |
448 | static void * |
563 | static void * |
449 | ev_realloc_emul (void *ptr, long size) |
564 | ev_realloc_emul (void *ptr, long size) |
450 | { |
565 | { |
|
|
566 | #if __GLIBC__ |
|
|
567 | return realloc (ptr, size); |
|
|
568 | #else |
451 | /* some systems, notably openbsd and darwin, fail to properly |
569 | /* some systems, notably openbsd and darwin, fail to properly |
452 | * implement realloc (x, 0) (as required by both ansi c-98 and |
570 | * implement realloc (x, 0) (as required by both ansi c-89 and |
453 | * the single unix specification, so work around them here. |
571 | * the single unix specification, so work around them here. |
454 | */ |
572 | */ |
455 | |
573 | |
456 | if (size) |
574 | if (size) |
457 | return realloc (ptr, size); |
575 | return realloc (ptr, size); |
458 | |
576 | |
459 | free (ptr); |
577 | free (ptr); |
460 | return 0; |
578 | return 0; |
|
|
579 | #endif |
461 | } |
580 | } |
462 | |
581 | |
463 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
582 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
464 | |
583 | |
465 | void |
584 | void |
… | |
… | |
473 | { |
592 | { |
474 | ptr = alloc (ptr, size); |
593 | ptr = alloc (ptr, size); |
475 | |
594 | |
476 | if (!ptr && size) |
595 | if (!ptr && size) |
477 | { |
596 | { |
|
|
597 | #if EV_AVOID_STDIO |
|
|
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
599 | #else |
478 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
601 | #endif |
479 | abort (); |
602 | abort (); |
480 | } |
603 | } |
481 | |
604 | |
482 | return ptr; |
605 | return ptr; |
483 | } |
606 | } |
… | |
… | |
485 | #define ev_malloc(size) ev_realloc (0, (size)) |
608 | #define ev_malloc(size) ev_realloc (0, (size)) |
486 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
609 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
487 | |
610 | |
488 | /*****************************************************************************/ |
611 | /*****************************************************************************/ |
489 | |
612 | |
|
|
613 | /* set in reify when reification needed */ |
|
|
614 | #define EV_ANFD_REIFY 1 |
|
|
615 | |
490 | /* file descriptor info structure */ |
616 | /* file descriptor info structure */ |
491 | typedef struct |
617 | typedef struct |
492 | { |
618 | { |
493 | WL head; |
619 | WL head; |
494 | unsigned char events; /* the events watched for */ |
620 | unsigned char events; /* the events watched for */ |
495 | unsigned char reify; /* flag set when this ANFD needs reification */ |
621 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
496 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
622 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
497 | unsigned char unused; |
623 | unsigned char unused; |
498 | #if EV_USE_EPOLL |
624 | #if EV_USE_EPOLL |
499 | unsigned int egen; /* generation counter to counter epoll bugs */ |
625 | unsigned int egen; /* generation counter to counter epoll bugs */ |
500 | #endif |
626 | #endif |
… | |
… | |
562 | |
688 | |
563 | static int ev_default_loop_ptr; |
689 | static int ev_default_loop_ptr; |
564 | |
690 | |
565 | #endif |
691 | #endif |
566 | |
692 | |
|
|
693 | #if EV_FEATURE_API |
|
|
694 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
695 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
696 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
697 | #else |
|
|
698 | # define EV_RELEASE_CB (void)0 |
|
|
699 | # define EV_ACQUIRE_CB (void)0 |
|
|
700 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
701 | #endif |
|
|
702 | |
|
|
703 | #define EVUNLOOP_RECURSE 0x80 |
|
|
704 | |
567 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
568 | |
706 | |
569 | #ifndef EV_HAVE_EV_TIME |
707 | #ifndef EV_HAVE_EV_TIME |
570 | ev_tstamp |
708 | ev_tstamp |
571 | ev_time (void) |
709 | ev_time (void) |
… | |
… | |
627 | |
765 | |
628 | tv.tv_sec = (time_t)delay; |
766 | tv.tv_sec = (time_t)delay; |
629 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
767 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
630 | |
768 | |
631 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
632 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
770 | /* something not guaranteed by newer posix versions, but guaranteed */ |
633 | /* by older ones */ |
771 | /* by older ones */ |
634 | select (0, 0, 0, 0, &tv); |
772 | select (0, 0, 0, 0, &tv); |
635 | #endif |
773 | #endif |
636 | } |
774 | } |
637 | } |
775 | } |
… | |
… | |
745 | } |
883 | } |
746 | |
884 | |
747 | /*****************************************************************************/ |
885 | /*****************************************************************************/ |
748 | |
886 | |
749 | inline_speed void |
887 | inline_speed void |
750 | fd_event (EV_P_ int fd, int revents) |
888 | fd_event_nocheck (EV_P_ int fd, int revents) |
751 | { |
889 | { |
752 | ANFD *anfd = anfds + fd; |
890 | ANFD *anfd = anfds + fd; |
753 | ev_io *w; |
891 | ev_io *w; |
754 | |
892 | |
755 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
893 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
759 | if (ev) |
897 | if (ev) |
760 | ev_feed_event (EV_A_ (W)w, ev); |
898 | ev_feed_event (EV_A_ (W)w, ev); |
761 | } |
899 | } |
762 | } |
900 | } |
763 | |
901 | |
|
|
902 | /* do not submit kernel events for fds that have reify set */ |
|
|
903 | /* because that means they changed while we were polling for new events */ |
|
|
904 | inline_speed void |
|
|
905 | fd_event (EV_P_ int fd, int revents) |
|
|
906 | { |
|
|
907 | ANFD *anfd = anfds + fd; |
|
|
908 | |
|
|
909 | if (expect_true (!anfd->reify)) |
|
|
910 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
911 | } |
|
|
912 | |
764 | void |
913 | void |
765 | ev_feed_fd_event (EV_P_ int fd, int revents) |
914 | ev_feed_fd_event (EV_P_ int fd, int revents) |
766 | { |
915 | { |
767 | if (fd >= 0 && fd < anfdmax) |
916 | if (fd >= 0 && fd < anfdmax) |
768 | fd_event (EV_A_ fd, revents); |
917 | fd_event_nocheck (EV_A_ fd, revents); |
769 | } |
918 | } |
770 | |
919 | |
771 | /* make sure the external fd watch events are in-sync */ |
920 | /* make sure the external fd watch events are in-sync */ |
772 | /* with the kernel/libev internal state */ |
921 | /* with the kernel/libev internal state */ |
773 | inline_size void |
922 | inline_size void |
… | |
… | |
788 | |
937 | |
789 | #if EV_SELECT_IS_WINSOCKET |
938 | #if EV_SELECT_IS_WINSOCKET |
790 | if (events) |
939 | if (events) |
791 | { |
940 | { |
792 | unsigned long arg; |
941 | unsigned long arg; |
793 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
794 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
942 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
795 | #else |
|
|
796 | anfd->handle = _get_osfhandle (fd); |
|
|
797 | #endif |
|
|
798 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
943 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
799 | } |
944 | } |
800 | #endif |
945 | #endif |
801 | |
946 | |
802 | { |
947 | { |
… | |
… | |
840 | ev_io_stop (EV_A_ w); |
985 | ev_io_stop (EV_A_ w); |
841 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
986 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
842 | } |
987 | } |
843 | } |
988 | } |
844 | |
989 | |
845 | /* check whether the given fd is atcually valid, for error recovery */ |
990 | /* check whether the given fd is actually valid, for error recovery */ |
846 | inline_size int |
991 | inline_size int |
847 | fd_valid (int fd) |
992 | fd_valid (int fd) |
848 | { |
993 | { |
849 | #ifdef _WIN32 |
994 | #ifdef _WIN32 |
850 | return _get_osfhandle (fd) != -1; |
995 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
851 | #else |
996 | #else |
852 | return fcntl (fd, F_GETFD) != -1; |
997 | return fcntl (fd, F_GETFD) != -1; |
853 | #endif |
998 | #endif |
854 | } |
999 | } |
855 | |
1000 | |
… | |
… | |
873 | |
1018 | |
874 | for (fd = anfdmax; fd--; ) |
1019 | for (fd = anfdmax; fd--; ) |
875 | if (anfds [fd].events) |
1020 | if (anfds [fd].events) |
876 | { |
1021 | { |
877 | fd_kill (EV_A_ fd); |
1022 | fd_kill (EV_A_ fd); |
878 | return; |
1023 | break; |
879 | } |
1024 | } |
880 | } |
1025 | } |
881 | |
1026 | |
882 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1027 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
883 | static void noinline |
1028 | static void noinline |
… | |
… | |
888 | for (fd = 0; fd < anfdmax; ++fd) |
1033 | for (fd = 0; fd < anfdmax; ++fd) |
889 | if (anfds [fd].events) |
1034 | if (anfds [fd].events) |
890 | { |
1035 | { |
891 | anfds [fd].events = 0; |
1036 | anfds [fd].events = 0; |
892 | anfds [fd].emask = 0; |
1037 | anfds [fd].emask = 0; |
893 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1038 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
894 | } |
1039 | } |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | /* used to prepare libev internal fd's */ |
|
|
1043 | /* this is not fork-safe */ |
|
|
1044 | inline_speed void |
|
|
1045 | fd_intern (int fd) |
|
|
1046 | { |
|
|
1047 | #ifdef _WIN32 |
|
|
1048 | unsigned long arg = 1; |
|
|
1049 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1050 | #else |
|
|
1051 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1052 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1053 | #endif |
895 | } |
1054 | } |
896 | |
1055 | |
897 | /*****************************************************************************/ |
1056 | /*****************************************************************************/ |
898 | |
1057 | |
899 | /* |
1058 | /* |
… | |
… | |
973 | |
1132 | |
974 | for (;;) |
1133 | for (;;) |
975 | { |
1134 | { |
976 | int c = k << 1; |
1135 | int c = k << 1; |
977 | |
1136 | |
978 | if (c > N + HEAP0 - 1) |
1137 | if (c >= N + HEAP0) |
979 | break; |
1138 | break; |
980 | |
1139 | |
981 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1140 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
982 | ? 1 : 0; |
1141 | ? 1 : 0; |
983 | |
1142 | |
… | |
… | |
1019 | |
1178 | |
1020 | /* move an element suitably so it is in a correct place */ |
1179 | /* move an element suitably so it is in a correct place */ |
1021 | inline_size void |
1180 | inline_size void |
1022 | adjustheap (ANHE *heap, int N, int k) |
1181 | adjustheap (ANHE *heap, int N, int k) |
1023 | { |
1182 | { |
1024 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1183 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1025 | upheap (heap, k); |
1184 | upheap (heap, k); |
1026 | else |
1185 | else |
1027 | downheap (heap, N, k); |
1186 | downheap (heap, N, k); |
1028 | } |
1187 | } |
1029 | |
1188 | |
… | |
… | |
1042 | /*****************************************************************************/ |
1201 | /*****************************************************************************/ |
1043 | |
1202 | |
1044 | /* associate signal watchers to a signal signal */ |
1203 | /* associate signal watchers to a signal signal */ |
1045 | typedef struct |
1204 | typedef struct |
1046 | { |
1205 | { |
|
|
1206 | EV_ATOMIC_T pending; |
|
|
1207 | #if EV_MULTIPLICITY |
|
|
1208 | EV_P; |
|
|
1209 | #endif |
1047 | WL head; |
1210 | WL head; |
1048 | EV_ATOMIC_T gotsig; |
|
|
1049 | } ANSIG; |
1211 | } ANSIG; |
1050 | |
1212 | |
1051 | static ANSIG *signals; |
1213 | static ANSIG signals [EV_NSIG - 1]; |
1052 | static int signalmax; |
|
|
1053 | |
|
|
1054 | static EV_ATOMIC_T gotsig; |
|
|
1055 | |
1214 | |
1056 | /*****************************************************************************/ |
1215 | /*****************************************************************************/ |
1057 | |
1216 | |
1058 | /* used to prepare libev internal fd's */ |
1217 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1059 | /* this is not fork-safe */ |
|
|
1060 | inline_speed void |
|
|
1061 | fd_intern (int fd) |
|
|
1062 | { |
|
|
1063 | #ifdef _WIN32 |
|
|
1064 | unsigned long arg = 1; |
|
|
1065 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1066 | #else |
|
|
1067 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1068 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1069 | #endif |
|
|
1070 | } |
|
|
1071 | |
1218 | |
1072 | static void noinline |
1219 | static void noinline |
1073 | evpipe_init (EV_P) |
1220 | evpipe_init (EV_P) |
1074 | { |
1221 | { |
1075 | if (!ev_is_active (&pipe_w)) |
1222 | if (!ev_is_active (&pipe_w)) |
1076 | { |
1223 | { |
1077 | #if EV_USE_EVENTFD |
1224 | # if EV_USE_EVENTFD |
|
|
1225 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1226 | if (evfd < 0 && errno == EINVAL) |
1078 | if ((evfd = eventfd (0, 0)) >= 0) |
1227 | evfd = eventfd (0, 0); |
|
|
1228 | |
|
|
1229 | if (evfd >= 0) |
1079 | { |
1230 | { |
1080 | evpipe [0] = -1; |
1231 | evpipe [0] = -1; |
1081 | fd_intern (evfd); |
1232 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1082 | ev_io_set (&pipe_w, evfd, EV_READ); |
1233 | ev_io_set (&pipe_w, evfd, EV_READ); |
1083 | } |
1234 | } |
1084 | else |
1235 | else |
1085 | #endif |
1236 | # endif |
1086 | { |
1237 | { |
1087 | while (pipe (evpipe)) |
1238 | while (pipe (evpipe)) |
1088 | ev_syserr ("(libev) error creating signal/async pipe"); |
1239 | ev_syserr ("(libev) error creating signal/async pipe"); |
1089 | |
1240 | |
1090 | fd_intern (evpipe [0]); |
1241 | fd_intern (evpipe [0]); |
… | |
… | |
1101 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1252 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1102 | { |
1253 | { |
1103 | if (!*flag) |
1254 | if (!*flag) |
1104 | { |
1255 | { |
1105 | int old_errno = errno; /* save errno because write might clobber it */ |
1256 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1257 | char dummy; |
1106 | |
1258 | |
1107 | *flag = 1; |
1259 | *flag = 1; |
1108 | |
1260 | |
1109 | #if EV_USE_EVENTFD |
1261 | #if EV_USE_EVENTFD |
1110 | if (evfd >= 0) |
1262 | if (evfd >= 0) |
… | |
… | |
1112 | uint64_t counter = 1; |
1264 | uint64_t counter = 1; |
1113 | write (evfd, &counter, sizeof (uint64_t)); |
1265 | write (evfd, &counter, sizeof (uint64_t)); |
1114 | } |
1266 | } |
1115 | else |
1267 | else |
1116 | #endif |
1268 | #endif |
1117 | write (evpipe [1], &old_errno, 1); |
1269 | write (evpipe [1], &dummy, 1); |
1118 | |
1270 | |
1119 | errno = old_errno; |
1271 | errno = old_errno; |
1120 | } |
1272 | } |
1121 | } |
1273 | } |
1122 | |
1274 | |
1123 | /* called whenever the libev signal pipe */ |
1275 | /* called whenever the libev signal pipe */ |
1124 | /* got some events (signal, async) */ |
1276 | /* got some events (signal, async) */ |
1125 | static void |
1277 | static void |
1126 | pipecb (EV_P_ ev_io *iow, int revents) |
1278 | pipecb (EV_P_ ev_io *iow, int revents) |
1127 | { |
1279 | { |
|
|
1280 | int i; |
|
|
1281 | |
1128 | #if EV_USE_EVENTFD |
1282 | #if EV_USE_EVENTFD |
1129 | if (evfd >= 0) |
1283 | if (evfd >= 0) |
1130 | { |
1284 | { |
1131 | uint64_t counter; |
1285 | uint64_t counter; |
1132 | read (evfd, &counter, sizeof (uint64_t)); |
1286 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1136 | { |
1290 | { |
1137 | char dummy; |
1291 | char dummy; |
1138 | read (evpipe [0], &dummy, 1); |
1292 | read (evpipe [0], &dummy, 1); |
1139 | } |
1293 | } |
1140 | |
1294 | |
1141 | if (gotsig && ev_is_default_loop (EV_A)) |
1295 | if (sig_pending) |
1142 | { |
1296 | { |
1143 | int signum; |
1297 | sig_pending = 0; |
1144 | gotsig = 0; |
|
|
1145 | |
1298 | |
1146 | for (signum = signalmax; signum--; ) |
1299 | for (i = EV_NSIG - 1; i--; ) |
1147 | if (signals [signum].gotsig) |
1300 | if (expect_false (signals [i].pending)) |
1148 | ev_feed_signal_event (EV_A_ signum + 1); |
1301 | ev_feed_signal_event (EV_A_ i + 1); |
1149 | } |
1302 | } |
1150 | |
1303 | |
1151 | #if EV_ASYNC_ENABLE |
1304 | #if EV_ASYNC_ENABLE |
1152 | if (gotasync) |
1305 | if (async_pending) |
1153 | { |
1306 | { |
1154 | int i; |
1307 | async_pending = 0; |
1155 | gotasync = 0; |
|
|
1156 | |
1308 | |
1157 | for (i = asynccnt; i--; ) |
1309 | for (i = asynccnt; i--; ) |
1158 | if (asyncs [i]->sent) |
1310 | if (asyncs [i]->sent) |
1159 | { |
1311 | { |
1160 | asyncs [i]->sent = 0; |
1312 | asyncs [i]->sent = 0; |
… | |
… | |
1168 | |
1320 | |
1169 | static void |
1321 | static void |
1170 | ev_sighandler (int signum) |
1322 | ev_sighandler (int signum) |
1171 | { |
1323 | { |
1172 | #if EV_MULTIPLICITY |
1324 | #if EV_MULTIPLICITY |
1173 | struct ev_loop *loop = &default_loop_struct; |
1325 | EV_P = signals [signum - 1].loop; |
1174 | #endif |
1326 | #endif |
1175 | |
1327 | |
1176 | #if _WIN32 |
1328 | #ifdef _WIN32 |
1177 | signal (signum, ev_sighandler); |
1329 | signal (signum, ev_sighandler); |
1178 | #endif |
1330 | #endif |
1179 | |
1331 | |
1180 | signals [signum - 1].gotsig = 1; |
1332 | signals [signum - 1].pending = 1; |
1181 | evpipe_write (EV_A_ &gotsig); |
1333 | evpipe_write (EV_A_ &sig_pending); |
1182 | } |
1334 | } |
1183 | |
1335 | |
1184 | void noinline |
1336 | void noinline |
1185 | ev_feed_signal_event (EV_P_ int signum) |
1337 | ev_feed_signal_event (EV_P_ int signum) |
1186 | { |
1338 | { |
1187 | WL w; |
1339 | WL w; |
1188 | |
1340 | |
|
|
1341 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1342 | return; |
|
|
1343 | |
|
|
1344 | --signum; |
|
|
1345 | |
1189 | #if EV_MULTIPLICITY |
1346 | #if EV_MULTIPLICITY |
1190 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1347 | /* it is permissible to try to feed a signal to the wrong loop */ |
1191 | #endif |
1348 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1192 | |
1349 | |
1193 | --signum; |
1350 | if (expect_false (signals [signum].loop != EV_A)) |
1194 | |
|
|
1195 | if (signum < 0 || signum >= signalmax) |
|
|
1196 | return; |
1351 | return; |
|
|
1352 | #endif |
1197 | |
1353 | |
1198 | signals [signum].gotsig = 0; |
1354 | signals [signum].pending = 0; |
1199 | |
1355 | |
1200 | for (w = signals [signum].head; w; w = w->next) |
1356 | for (w = signals [signum].head; w; w = w->next) |
1201 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1357 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1202 | } |
1358 | } |
1203 | |
1359 | |
|
|
1360 | #if EV_USE_SIGNALFD |
|
|
1361 | static void |
|
|
1362 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1363 | { |
|
|
1364 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1365 | |
|
|
1366 | for (;;) |
|
|
1367 | { |
|
|
1368 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1369 | |
|
|
1370 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1371 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1372 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1373 | |
|
|
1374 | if (res < (ssize_t)sizeof (si)) |
|
|
1375 | break; |
|
|
1376 | } |
|
|
1377 | } |
|
|
1378 | #endif |
|
|
1379 | |
|
|
1380 | #endif |
|
|
1381 | |
1204 | /*****************************************************************************/ |
1382 | /*****************************************************************************/ |
1205 | |
1383 | |
|
|
1384 | #if EV_CHILD_ENABLE |
1206 | static WL childs [EV_PID_HASHSIZE]; |
1385 | static WL childs [EV_PID_HASHSIZE]; |
1207 | |
|
|
1208 | #ifndef _WIN32 |
|
|
1209 | |
1386 | |
1210 | static ev_signal childev; |
1387 | static ev_signal childev; |
1211 | |
1388 | |
1212 | #ifndef WIFCONTINUED |
1389 | #ifndef WIFCONTINUED |
1213 | # define WIFCONTINUED(status) 0 |
1390 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1218 | child_reap (EV_P_ int chain, int pid, int status) |
1395 | child_reap (EV_P_ int chain, int pid, int status) |
1219 | { |
1396 | { |
1220 | ev_child *w; |
1397 | ev_child *w; |
1221 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1398 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1222 | |
1399 | |
1223 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1400 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1224 | { |
1401 | { |
1225 | if ((w->pid == pid || !w->pid) |
1402 | if ((w->pid == pid || !w->pid) |
1226 | && (!traced || (w->flags & 1))) |
1403 | && (!traced || (w->flags & 1))) |
1227 | { |
1404 | { |
1228 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
1405 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
… | |
… | |
1253 | /* make sure we are called again until all children have been reaped */ |
1430 | /* make sure we are called again until all children have been reaped */ |
1254 | /* we need to do it this way so that the callback gets called before we continue */ |
1431 | /* we need to do it this way so that the callback gets called before we continue */ |
1255 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1432 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1256 | |
1433 | |
1257 | child_reap (EV_A_ pid, pid, status); |
1434 | child_reap (EV_A_ pid, pid, status); |
1258 | if (EV_PID_HASHSIZE > 1) |
1435 | if ((EV_PID_HASHSIZE) > 1) |
1259 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1436 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1260 | } |
1437 | } |
1261 | |
1438 | |
1262 | #endif |
1439 | #endif |
1263 | |
1440 | |
… | |
… | |
1330 | #ifdef __APPLE__ |
1507 | #ifdef __APPLE__ |
1331 | /* only select works correctly on that "unix-certified" platform */ |
1508 | /* only select works correctly on that "unix-certified" platform */ |
1332 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1509 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
1333 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1510 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1334 | #endif |
1511 | #endif |
|
|
1512 | #ifdef __FreeBSD__ |
|
|
1513 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
1514 | #endif |
1335 | |
1515 | |
1336 | return flags; |
1516 | return flags; |
1337 | } |
1517 | } |
1338 | |
1518 | |
1339 | unsigned int |
1519 | unsigned int |
… | |
… | |
1352 | ev_backend (EV_P) |
1532 | ev_backend (EV_P) |
1353 | { |
1533 | { |
1354 | return backend; |
1534 | return backend; |
1355 | } |
1535 | } |
1356 | |
1536 | |
|
|
1537 | #if EV_FEATURE_API |
1357 | unsigned int |
1538 | unsigned int |
1358 | ev_loop_count (EV_P) |
1539 | ev_iteration (EV_P) |
1359 | { |
1540 | { |
1360 | return loop_count; |
1541 | return loop_count; |
1361 | } |
1542 | } |
1362 | |
1543 | |
1363 | unsigned int |
1544 | unsigned int |
1364 | ev_loop_depth (EV_P) |
1545 | ev_depth (EV_P) |
1365 | { |
1546 | { |
1366 | return loop_depth; |
1547 | return loop_depth; |
1367 | } |
1548 | } |
1368 | |
1549 | |
1369 | void |
1550 | void |
… | |
… | |
1375 | void |
1556 | void |
1376 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1557 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1377 | { |
1558 | { |
1378 | timeout_blocktime = interval; |
1559 | timeout_blocktime = interval; |
1379 | } |
1560 | } |
|
|
1561 | |
|
|
1562 | void |
|
|
1563 | ev_set_userdata (EV_P_ void *data) |
|
|
1564 | { |
|
|
1565 | userdata = data; |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | void * |
|
|
1569 | ev_userdata (EV_P) |
|
|
1570 | { |
|
|
1571 | return userdata; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1575 | { |
|
|
1576 | invoke_cb = invoke_pending_cb; |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1580 | { |
|
|
1581 | release_cb = release; |
|
|
1582 | acquire_cb = acquire; |
|
|
1583 | } |
|
|
1584 | #endif |
1380 | |
1585 | |
1381 | /* initialise a loop structure, must be zero-initialised */ |
1586 | /* initialise a loop structure, must be zero-initialised */ |
1382 | static void noinline |
1587 | static void noinline |
1383 | loop_init (EV_P_ unsigned int flags) |
1588 | loop_init (EV_P_ unsigned int flags) |
1384 | { |
1589 | { |
… | |
… | |
1402 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1607 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1403 | have_monotonic = 1; |
1608 | have_monotonic = 1; |
1404 | } |
1609 | } |
1405 | #endif |
1610 | #endif |
1406 | |
1611 | |
|
|
1612 | /* pid check not overridable via env */ |
|
|
1613 | #ifndef _WIN32 |
|
|
1614 | if (flags & EVFLAG_FORKCHECK) |
|
|
1615 | curpid = getpid (); |
|
|
1616 | #endif |
|
|
1617 | |
|
|
1618 | if (!(flags & EVFLAG_NOENV) |
|
|
1619 | && !enable_secure () |
|
|
1620 | && getenv ("LIBEV_FLAGS")) |
|
|
1621 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1622 | |
1407 | ev_rt_now = ev_time (); |
1623 | ev_rt_now = ev_time (); |
1408 | mn_now = get_clock (); |
1624 | mn_now = get_clock (); |
1409 | now_floor = mn_now; |
1625 | now_floor = mn_now; |
1410 | rtmn_diff = ev_rt_now - mn_now; |
1626 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1627 | #if EV_FEATURE_API |
|
|
1628 | invoke_cb = ev_invoke_pending; |
|
|
1629 | #endif |
1411 | |
1630 | |
1412 | io_blocktime = 0.; |
1631 | io_blocktime = 0.; |
1413 | timeout_blocktime = 0.; |
1632 | timeout_blocktime = 0.; |
1414 | backend = 0; |
1633 | backend = 0; |
1415 | backend_fd = -1; |
1634 | backend_fd = -1; |
1416 | gotasync = 0; |
1635 | sig_pending = 0; |
|
|
1636 | #if EV_ASYNC_ENABLE |
|
|
1637 | async_pending = 0; |
|
|
1638 | #endif |
1417 | #if EV_USE_INOTIFY |
1639 | #if EV_USE_INOTIFY |
1418 | fs_fd = -2; |
1640 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1419 | #endif |
1641 | #endif |
1420 | |
1642 | #if EV_USE_SIGNALFD |
1421 | /* pid check not overridable via env */ |
1643 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1422 | #ifndef _WIN32 |
|
|
1423 | if (flags & EVFLAG_FORKCHECK) |
|
|
1424 | curpid = getpid (); |
|
|
1425 | #endif |
1644 | #endif |
1426 | |
|
|
1427 | if (!(flags & EVFLAG_NOENV) |
|
|
1428 | && !enable_secure () |
|
|
1429 | && getenv ("LIBEV_FLAGS")) |
|
|
1430 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1431 | |
1645 | |
1432 | if (!(flags & 0x0000ffffU)) |
1646 | if (!(flags & 0x0000ffffU)) |
1433 | flags |= ev_recommended_backends (); |
1647 | flags |= ev_recommended_backends (); |
1434 | |
1648 | |
1435 | #if EV_USE_PORT |
1649 | #if EV_USE_PORT |
… | |
… | |
1448 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1662 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1449 | #endif |
1663 | #endif |
1450 | |
1664 | |
1451 | ev_prepare_init (&pending_w, pendingcb); |
1665 | ev_prepare_init (&pending_w, pendingcb); |
1452 | |
1666 | |
|
|
1667 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1453 | ev_init (&pipe_w, pipecb); |
1668 | ev_init (&pipe_w, pipecb); |
1454 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1669 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1670 | #endif |
1455 | } |
1671 | } |
1456 | } |
1672 | } |
1457 | |
1673 | |
1458 | /* free up a loop structure */ |
1674 | /* free up a loop structure */ |
1459 | static void noinline |
1675 | static void noinline |
… | |
… | |
1461 | { |
1677 | { |
1462 | int i; |
1678 | int i; |
1463 | |
1679 | |
1464 | if (ev_is_active (&pipe_w)) |
1680 | if (ev_is_active (&pipe_w)) |
1465 | { |
1681 | { |
1466 | ev_ref (EV_A); /* signal watcher */ |
1682 | /*ev_ref (EV_A);*/ |
1467 | ev_io_stop (EV_A_ &pipe_w); |
1683 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1468 | |
1684 | |
1469 | #if EV_USE_EVENTFD |
1685 | #if EV_USE_EVENTFD |
1470 | if (evfd >= 0) |
1686 | if (evfd >= 0) |
1471 | close (evfd); |
1687 | close (evfd); |
1472 | #endif |
1688 | #endif |
1473 | |
1689 | |
1474 | if (evpipe [0] >= 0) |
1690 | if (evpipe [0] >= 0) |
1475 | { |
1691 | { |
1476 | close (evpipe [0]); |
1692 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1477 | close (evpipe [1]); |
1693 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1478 | } |
1694 | } |
1479 | } |
1695 | } |
|
|
1696 | |
|
|
1697 | #if EV_USE_SIGNALFD |
|
|
1698 | if (ev_is_active (&sigfd_w)) |
|
|
1699 | close (sigfd); |
|
|
1700 | #endif |
1480 | |
1701 | |
1481 | #if EV_USE_INOTIFY |
1702 | #if EV_USE_INOTIFY |
1482 | if (fs_fd >= 0) |
1703 | if (fs_fd >= 0) |
1483 | close (fs_fd); |
1704 | close (fs_fd); |
1484 | #endif |
1705 | #endif |
… | |
… | |
1508 | #if EV_IDLE_ENABLE |
1729 | #if EV_IDLE_ENABLE |
1509 | array_free (idle, [i]); |
1730 | array_free (idle, [i]); |
1510 | #endif |
1731 | #endif |
1511 | } |
1732 | } |
1512 | |
1733 | |
1513 | ev_free (anfds); anfdmax = 0; |
1734 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1514 | |
1735 | |
1515 | /* have to use the microsoft-never-gets-it-right macro */ |
1736 | /* have to use the microsoft-never-gets-it-right macro */ |
1516 | array_free (rfeed, EMPTY); |
1737 | array_free (rfeed, EMPTY); |
1517 | array_free (fdchange, EMPTY); |
1738 | array_free (fdchange, EMPTY); |
1518 | array_free (timer, EMPTY); |
1739 | array_free (timer, EMPTY); |
… | |
… | |
1553 | |
1774 | |
1554 | if (ev_is_active (&pipe_w)) |
1775 | if (ev_is_active (&pipe_w)) |
1555 | { |
1776 | { |
1556 | /* this "locks" the handlers against writing to the pipe */ |
1777 | /* this "locks" the handlers against writing to the pipe */ |
1557 | /* while we modify the fd vars */ |
1778 | /* while we modify the fd vars */ |
1558 | gotsig = 1; |
1779 | sig_pending = 1; |
1559 | #if EV_ASYNC_ENABLE |
1780 | #if EV_ASYNC_ENABLE |
1560 | gotasync = 1; |
1781 | async_pending = 1; |
1561 | #endif |
1782 | #endif |
1562 | |
1783 | |
1563 | ev_ref (EV_A); |
1784 | ev_ref (EV_A); |
1564 | ev_io_stop (EV_A_ &pipe_w); |
1785 | ev_io_stop (EV_A_ &pipe_w); |
1565 | |
1786 | |
… | |
… | |
1568 | close (evfd); |
1789 | close (evfd); |
1569 | #endif |
1790 | #endif |
1570 | |
1791 | |
1571 | if (evpipe [0] >= 0) |
1792 | if (evpipe [0] >= 0) |
1572 | { |
1793 | { |
1573 | close (evpipe [0]); |
1794 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1574 | close (evpipe [1]); |
1795 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1575 | } |
1796 | } |
1576 | |
1797 | |
|
|
1798 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1577 | evpipe_init (EV_A); |
1799 | evpipe_init (EV_A); |
1578 | /* now iterate over everything, in case we missed something */ |
1800 | /* now iterate over everything, in case we missed something */ |
1579 | pipecb (EV_A_ &pipe_w, EV_READ); |
1801 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1802 | #endif |
1580 | } |
1803 | } |
1581 | |
1804 | |
1582 | postfork = 0; |
1805 | postfork = 0; |
1583 | } |
1806 | } |
1584 | |
1807 | |
1585 | #if EV_MULTIPLICITY |
1808 | #if EV_MULTIPLICITY |
1586 | |
1809 | |
1587 | struct ev_loop * |
1810 | struct ev_loop * |
1588 | ev_loop_new (unsigned int flags) |
1811 | ev_loop_new (unsigned int flags) |
1589 | { |
1812 | { |
1590 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1813 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1591 | |
1814 | |
1592 | memset (loop, 0, sizeof (struct ev_loop)); |
1815 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1593 | |
|
|
1594 | loop_init (EV_A_ flags); |
1816 | loop_init (EV_A_ flags); |
1595 | |
1817 | |
1596 | if (ev_backend (EV_A)) |
1818 | if (ev_backend (EV_A)) |
1597 | return loop; |
1819 | return EV_A; |
1598 | |
1820 | |
1599 | return 0; |
1821 | return 0; |
1600 | } |
1822 | } |
1601 | |
1823 | |
1602 | void |
1824 | void |
… | |
… | |
1609 | void |
1831 | void |
1610 | ev_loop_fork (EV_P) |
1832 | ev_loop_fork (EV_P) |
1611 | { |
1833 | { |
1612 | postfork = 1; /* must be in line with ev_default_fork */ |
1834 | postfork = 1; /* must be in line with ev_default_fork */ |
1613 | } |
1835 | } |
|
|
1836 | #endif /* multiplicity */ |
1614 | |
1837 | |
1615 | #if EV_VERIFY |
1838 | #if EV_VERIFY |
1616 | static void noinline |
1839 | static void noinline |
1617 | verify_watcher (EV_P_ W w) |
1840 | verify_watcher (EV_P_ W w) |
1618 | { |
1841 | { |
… | |
… | |
1646 | verify_watcher (EV_A_ ws [cnt]); |
1869 | verify_watcher (EV_A_ ws [cnt]); |
1647 | } |
1870 | } |
1648 | } |
1871 | } |
1649 | #endif |
1872 | #endif |
1650 | |
1873 | |
|
|
1874 | #if EV_FEATURE_API |
1651 | void |
1875 | void |
1652 | ev_loop_verify (EV_P) |
1876 | ev_verify (EV_P) |
1653 | { |
1877 | { |
1654 | #if EV_VERIFY |
1878 | #if EV_VERIFY |
1655 | int i; |
1879 | int i; |
1656 | WL w; |
1880 | WL w; |
1657 | |
1881 | |
… | |
… | |
1696 | #if EV_ASYNC_ENABLE |
1920 | #if EV_ASYNC_ENABLE |
1697 | assert (asyncmax >= asynccnt); |
1921 | assert (asyncmax >= asynccnt); |
1698 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1922 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1699 | #endif |
1923 | #endif |
1700 | |
1924 | |
|
|
1925 | #if EV_PREPARE_ENABLE |
1701 | assert (preparemax >= preparecnt); |
1926 | assert (preparemax >= preparecnt); |
1702 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1927 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1928 | #endif |
1703 | |
1929 | |
|
|
1930 | #if EV_CHECK_ENABLE |
1704 | assert (checkmax >= checkcnt); |
1931 | assert (checkmax >= checkcnt); |
1705 | array_verify (EV_A_ (W *)checks, checkcnt); |
1932 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1933 | #endif |
1706 | |
1934 | |
1707 | # if 0 |
1935 | # if 0 |
|
|
1936 | #if EV_CHILD_ENABLE |
1708 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1937 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
1709 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1938 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1710 | # endif |
1939 | #endif |
1711 | #endif |
1940 | # endif |
|
|
1941 | #endif |
1712 | } |
1942 | } |
1713 | |
1943 | #endif |
1714 | #endif /* multiplicity */ |
|
|
1715 | |
1944 | |
1716 | #if EV_MULTIPLICITY |
1945 | #if EV_MULTIPLICITY |
1717 | struct ev_loop * |
1946 | struct ev_loop * |
1718 | ev_default_loop_init (unsigned int flags) |
1947 | ev_default_loop_init (unsigned int flags) |
1719 | #else |
1948 | #else |
… | |
… | |
1722 | #endif |
1951 | #endif |
1723 | { |
1952 | { |
1724 | if (!ev_default_loop_ptr) |
1953 | if (!ev_default_loop_ptr) |
1725 | { |
1954 | { |
1726 | #if EV_MULTIPLICITY |
1955 | #if EV_MULTIPLICITY |
1727 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1956 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1728 | #else |
1957 | #else |
1729 | ev_default_loop_ptr = 1; |
1958 | ev_default_loop_ptr = 1; |
1730 | #endif |
1959 | #endif |
1731 | |
1960 | |
1732 | loop_init (EV_A_ flags); |
1961 | loop_init (EV_A_ flags); |
1733 | |
1962 | |
1734 | if (ev_backend (EV_A)) |
1963 | if (ev_backend (EV_A)) |
1735 | { |
1964 | { |
1736 | #ifndef _WIN32 |
1965 | #if EV_CHILD_ENABLE |
1737 | ev_signal_init (&childev, childcb, SIGCHLD); |
1966 | ev_signal_init (&childev, childcb, SIGCHLD); |
1738 | ev_set_priority (&childev, EV_MAXPRI); |
1967 | ev_set_priority (&childev, EV_MAXPRI); |
1739 | ev_signal_start (EV_A_ &childev); |
1968 | ev_signal_start (EV_A_ &childev); |
1740 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1969 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1741 | #endif |
1970 | #endif |
… | |
… | |
1749 | |
1978 | |
1750 | void |
1979 | void |
1751 | ev_default_destroy (void) |
1980 | ev_default_destroy (void) |
1752 | { |
1981 | { |
1753 | #if EV_MULTIPLICITY |
1982 | #if EV_MULTIPLICITY |
1754 | struct ev_loop *loop = ev_default_loop_ptr; |
1983 | EV_P = ev_default_loop_ptr; |
1755 | #endif |
1984 | #endif |
1756 | |
1985 | |
1757 | ev_default_loop_ptr = 0; |
1986 | ev_default_loop_ptr = 0; |
1758 | |
1987 | |
1759 | #ifndef _WIN32 |
1988 | #if EV_CHILD_ENABLE |
1760 | ev_ref (EV_A); /* child watcher */ |
1989 | ev_ref (EV_A); /* child watcher */ |
1761 | ev_signal_stop (EV_A_ &childev); |
1990 | ev_signal_stop (EV_A_ &childev); |
1762 | #endif |
1991 | #endif |
1763 | |
1992 | |
1764 | loop_destroy (EV_A); |
1993 | loop_destroy (EV_A); |
… | |
… | |
1766 | |
1995 | |
1767 | void |
1996 | void |
1768 | ev_default_fork (void) |
1997 | ev_default_fork (void) |
1769 | { |
1998 | { |
1770 | #if EV_MULTIPLICITY |
1999 | #if EV_MULTIPLICITY |
1771 | struct ev_loop *loop = ev_default_loop_ptr; |
2000 | EV_P = ev_default_loop_ptr; |
1772 | #endif |
2001 | #endif |
1773 | |
2002 | |
1774 | postfork = 1; /* must be in line with ev_loop_fork */ |
2003 | postfork = 1; /* must be in line with ev_loop_fork */ |
1775 | } |
2004 | } |
1776 | |
2005 | |
… | |
… | |
1780 | ev_invoke (EV_P_ void *w, int revents) |
2009 | ev_invoke (EV_P_ void *w, int revents) |
1781 | { |
2010 | { |
1782 | EV_CB_INVOKE ((W)w, revents); |
2011 | EV_CB_INVOKE ((W)w, revents); |
1783 | } |
2012 | } |
1784 | |
2013 | |
1785 | inline_speed void |
2014 | unsigned int |
1786 | call_pending (EV_P) |
2015 | ev_pending_count (EV_P) |
|
|
2016 | { |
|
|
2017 | int pri; |
|
|
2018 | unsigned int count = 0; |
|
|
2019 | |
|
|
2020 | for (pri = NUMPRI; pri--; ) |
|
|
2021 | count += pendingcnt [pri]; |
|
|
2022 | |
|
|
2023 | return count; |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | void noinline |
|
|
2027 | ev_invoke_pending (EV_P) |
1787 | { |
2028 | { |
1788 | int pri; |
2029 | int pri; |
1789 | |
2030 | |
1790 | for (pri = NUMPRI; pri--; ) |
2031 | for (pri = NUMPRI; pri--; ) |
1791 | while (pendingcnt [pri]) |
2032 | while (pendingcnt [pri]) |
… | |
… | |
1858 | EV_FREQUENT_CHECK; |
2099 | EV_FREQUENT_CHECK; |
1859 | feed_reverse (EV_A_ (W)w); |
2100 | feed_reverse (EV_A_ (W)w); |
1860 | } |
2101 | } |
1861 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
2102 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1862 | |
2103 | |
1863 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
2104 | feed_reverse_done (EV_A_ EV_TIMER); |
1864 | } |
2105 | } |
1865 | } |
2106 | } |
1866 | |
2107 | |
1867 | #if EV_PERIODIC_ENABLE |
2108 | #if EV_PERIODIC_ENABLE |
1868 | /* make periodics pending */ |
2109 | /* make periodics pending */ |
… | |
… | |
1959 | ANHE_at_cache (*he); |
2200 | ANHE_at_cache (*he); |
1960 | } |
2201 | } |
1961 | } |
2202 | } |
1962 | |
2203 | |
1963 | /* fetch new monotonic and realtime times from the kernel */ |
2204 | /* fetch new monotonic and realtime times from the kernel */ |
1964 | /* also detetc if there was a timejump, and act accordingly */ |
2205 | /* also detect if there was a timejump, and act accordingly */ |
1965 | inline_speed void |
2206 | inline_speed void |
1966 | time_update (EV_P_ ev_tstamp max_block) |
2207 | time_update (EV_P_ ev_tstamp max_block) |
1967 | { |
2208 | { |
1968 | #if EV_USE_MONOTONIC |
2209 | #if EV_USE_MONOTONIC |
1969 | if (expect_true (have_monotonic)) |
2210 | if (expect_true (have_monotonic)) |
… | |
… | |
2029 | } |
2270 | } |
2030 | |
2271 | |
2031 | void |
2272 | void |
2032 | ev_loop (EV_P_ int flags) |
2273 | ev_loop (EV_P_ int flags) |
2033 | { |
2274 | { |
|
|
2275 | #if EV_FEATURE_API |
2034 | ++loop_depth; |
2276 | ++loop_depth; |
|
|
2277 | #endif |
|
|
2278 | |
|
|
2279 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2035 | |
2280 | |
2036 | loop_done = EVUNLOOP_CANCEL; |
2281 | loop_done = EVUNLOOP_CANCEL; |
2037 | |
2282 | |
2038 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2283 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2039 | |
2284 | |
2040 | do |
2285 | do |
2041 | { |
2286 | { |
2042 | #if EV_VERIFY >= 2 |
2287 | #if EV_VERIFY >= 2 |
2043 | ev_loop_verify (EV_A); |
2288 | ev_verify (EV_A); |
2044 | #endif |
2289 | #endif |
2045 | |
2290 | |
2046 | #ifndef _WIN32 |
2291 | #ifndef _WIN32 |
2047 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2292 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2048 | if (expect_false (getpid () != curpid)) |
2293 | if (expect_false (getpid () != curpid)) |
… | |
… | |
2056 | /* we might have forked, so queue fork handlers */ |
2301 | /* we might have forked, so queue fork handlers */ |
2057 | if (expect_false (postfork)) |
2302 | if (expect_false (postfork)) |
2058 | if (forkcnt) |
2303 | if (forkcnt) |
2059 | { |
2304 | { |
2060 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2305 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2061 | call_pending (EV_A); |
2306 | EV_INVOKE_PENDING; |
2062 | } |
2307 | } |
2063 | #endif |
2308 | #endif |
2064 | |
2309 | |
|
|
2310 | #if EV_PREPARE_ENABLE |
2065 | /* queue prepare watchers (and execute them) */ |
2311 | /* queue prepare watchers (and execute them) */ |
2066 | if (expect_false (preparecnt)) |
2312 | if (expect_false (preparecnt)) |
2067 | { |
2313 | { |
2068 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2314 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2069 | call_pending (EV_A); |
2315 | EV_INVOKE_PENDING; |
2070 | } |
2316 | } |
|
|
2317 | #endif |
|
|
2318 | |
|
|
2319 | if (expect_false (loop_done)) |
|
|
2320 | break; |
2071 | |
2321 | |
2072 | /* we might have forked, so reify kernel state if necessary */ |
2322 | /* we might have forked, so reify kernel state if necessary */ |
2073 | if (expect_false (postfork)) |
2323 | if (expect_false (postfork)) |
2074 | loop_fork (EV_A); |
2324 | loop_fork (EV_A); |
2075 | |
2325 | |
… | |
… | |
2123 | waittime -= sleeptime; |
2373 | waittime -= sleeptime; |
2124 | } |
2374 | } |
2125 | } |
2375 | } |
2126 | } |
2376 | } |
2127 | |
2377 | |
|
|
2378 | #if EV_FEATURE_API |
2128 | ++loop_count; |
2379 | ++loop_count; |
|
|
2380 | #endif |
|
|
2381 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2129 | backend_poll (EV_A_ waittime); |
2382 | backend_poll (EV_A_ waittime); |
|
|
2383 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2130 | |
2384 | |
2131 | /* update ev_rt_now, do magic */ |
2385 | /* update ev_rt_now, do magic */ |
2132 | time_update (EV_A_ waittime + sleeptime); |
2386 | time_update (EV_A_ waittime + sleeptime); |
2133 | } |
2387 | } |
2134 | |
2388 | |
… | |
… | |
2141 | #if EV_IDLE_ENABLE |
2395 | #if EV_IDLE_ENABLE |
2142 | /* queue idle watchers unless other events are pending */ |
2396 | /* queue idle watchers unless other events are pending */ |
2143 | idle_reify (EV_A); |
2397 | idle_reify (EV_A); |
2144 | #endif |
2398 | #endif |
2145 | |
2399 | |
|
|
2400 | #if EV_CHECK_ENABLE |
2146 | /* queue check watchers, to be executed first */ |
2401 | /* queue check watchers, to be executed first */ |
2147 | if (expect_false (checkcnt)) |
2402 | if (expect_false (checkcnt)) |
2148 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2403 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2404 | #endif |
2149 | |
2405 | |
2150 | call_pending (EV_A); |
2406 | EV_INVOKE_PENDING; |
2151 | } |
2407 | } |
2152 | while (expect_true ( |
2408 | while (expect_true ( |
2153 | activecnt |
2409 | activecnt |
2154 | && !loop_done |
2410 | && !loop_done |
2155 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2411 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2156 | )); |
2412 | )); |
2157 | |
2413 | |
2158 | if (loop_done == EVUNLOOP_ONE) |
2414 | if (loop_done == EVUNLOOP_ONE) |
2159 | loop_done = EVUNLOOP_CANCEL; |
2415 | loop_done = EVUNLOOP_CANCEL; |
2160 | |
2416 | |
|
|
2417 | #if EV_FEATURE_API |
2161 | --loop_depth; |
2418 | --loop_depth; |
|
|
2419 | #endif |
2162 | } |
2420 | } |
2163 | |
2421 | |
2164 | void |
2422 | void |
2165 | ev_unloop (EV_P_ int how) |
2423 | ev_unloop (EV_P_ int how) |
2166 | { |
2424 | { |
… | |
… | |
2217 | inline_size void |
2475 | inline_size void |
2218 | wlist_del (WL *head, WL elem) |
2476 | wlist_del (WL *head, WL elem) |
2219 | { |
2477 | { |
2220 | while (*head) |
2478 | while (*head) |
2221 | { |
2479 | { |
2222 | if (*head == elem) |
2480 | if (expect_true (*head == elem)) |
2223 | { |
2481 | { |
2224 | *head = elem->next; |
2482 | *head = elem->next; |
2225 | return; |
2483 | break; |
2226 | } |
2484 | } |
2227 | |
2485 | |
2228 | head = &(*head)->next; |
2486 | head = &(*head)->next; |
2229 | } |
2487 | } |
2230 | } |
2488 | } |
… | |
… | |
2258 | } |
2516 | } |
2259 | |
2517 | |
2260 | inline_size void |
2518 | inline_size void |
2261 | pri_adjust (EV_P_ W w) |
2519 | pri_adjust (EV_P_ W w) |
2262 | { |
2520 | { |
2263 | int pri = w->priority; |
2521 | int pri = ev_priority (w); |
2264 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2522 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2265 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2523 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2266 | w->priority = pri; |
2524 | ev_set_priority (w, pri); |
2267 | } |
2525 | } |
2268 | |
2526 | |
2269 | inline_speed void |
2527 | inline_speed void |
2270 | ev_start (EV_P_ W w, int active) |
2528 | ev_start (EV_P_ W w, int active) |
2271 | { |
2529 | { |
… | |
… | |
2290 | |
2548 | |
2291 | if (expect_false (ev_is_active (w))) |
2549 | if (expect_false (ev_is_active (w))) |
2292 | return; |
2550 | return; |
2293 | |
2551 | |
2294 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2552 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2295 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2553 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2296 | |
2554 | |
2297 | EV_FREQUENT_CHECK; |
2555 | EV_FREQUENT_CHECK; |
2298 | |
2556 | |
2299 | ev_start (EV_A_ (W)w, 1); |
2557 | ev_start (EV_A_ (W)w, 1); |
2300 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2558 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2301 | wlist_add (&anfds[fd].head, (WL)w); |
2559 | wlist_add (&anfds[fd].head, (WL)w); |
2302 | |
2560 | |
2303 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2561 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2304 | w->events &= ~EV__IOFDSET; |
2562 | w->events &= ~EV__IOFDSET; |
2305 | |
2563 | |
2306 | EV_FREQUENT_CHECK; |
2564 | EV_FREQUENT_CHECK; |
2307 | } |
2565 | } |
2308 | |
2566 | |
… | |
… | |
2370 | timers [active] = timers [timercnt + HEAP0]; |
2628 | timers [active] = timers [timercnt + HEAP0]; |
2371 | adjustheap (timers, timercnt, active); |
2629 | adjustheap (timers, timercnt, active); |
2372 | } |
2630 | } |
2373 | } |
2631 | } |
2374 | |
2632 | |
2375 | EV_FREQUENT_CHECK; |
|
|
2376 | |
|
|
2377 | ev_at (w) -= mn_now; |
2633 | ev_at (w) -= mn_now; |
2378 | |
2634 | |
2379 | ev_stop (EV_A_ (W)w); |
2635 | ev_stop (EV_A_ (W)w); |
|
|
2636 | |
|
|
2637 | EV_FREQUENT_CHECK; |
2380 | } |
2638 | } |
2381 | |
2639 | |
2382 | void noinline |
2640 | void noinline |
2383 | ev_timer_again (EV_P_ ev_timer *w) |
2641 | ev_timer_again (EV_P_ ev_timer *w) |
2384 | { |
2642 | { |
… | |
… | |
2402 | } |
2660 | } |
2403 | |
2661 | |
2404 | EV_FREQUENT_CHECK; |
2662 | EV_FREQUENT_CHECK; |
2405 | } |
2663 | } |
2406 | |
2664 | |
|
|
2665 | ev_tstamp |
|
|
2666 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2667 | { |
|
|
2668 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2669 | } |
|
|
2670 | |
2407 | #if EV_PERIODIC_ENABLE |
2671 | #if EV_PERIODIC_ENABLE |
2408 | void noinline |
2672 | void noinline |
2409 | ev_periodic_start (EV_P_ ev_periodic *w) |
2673 | ev_periodic_start (EV_P_ ev_periodic *w) |
2410 | { |
2674 | { |
2411 | if (expect_false (ev_is_active (w))) |
2675 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2457 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2721 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2458 | adjustheap (periodics, periodiccnt, active); |
2722 | adjustheap (periodics, periodiccnt, active); |
2459 | } |
2723 | } |
2460 | } |
2724 | } |
2461 | |
2725 | |
2462 | EV_FREQUENT_CHECK; |
|
|
2463 | |
|
|
2464 | ev_stop (EV_A_ (W)w); |
2726 | ev_stop (EV_A_ (W)w); |
|
|
2727 | |
|
|
2728 | EV_FREQUENT_CHECK; |
2465 | } |
2729 | } |
2466 | |
2730 | |
2467 | void noinline |
2731 | void noinline |
2468 | ev_periodic_again (EV_P_ ev_periodic *w) |
2732 | ev_periodic_again (EV_P_ ev_periodic *w) |
2469 | { |
2733 | { |
… | |
… | |
2475 | |
2739 | |
2476 | #ifndef SA_RESTART |
2740 | #ifndef SA_RESTART |
2477 | # define SA_RESTART 0 |
2741 | # define SA_RESTART 0 |
2478 | #endif |
2742 | #endif |
2479 | |
2743 | |
|
|
2744 | #if EV_SIGNAL_ENABLE |
|
|
2745 | |
2480 | void noinline |
2746 | void noinline |
2481 | ev_signal_start (EV_P_ ev_signal *w) |
2747 | ev_signal_start (EV_P_ ev_signal *w) |
2482 | { |
2748 | { |
2483 | #if EV_MULTIPLICITY |
|
|
2484 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2485 | #endif |
|
|
2486 | if (expect_false (ev_is_active (w))) |
2749 | if (expect_false (ev_is_active (w))) |
2487 | return; |
2750 | return; |
2488 | |
2751 | |
2489 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2752 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2490 | |
2753 | |
2491 | evpipe_init (EV_A); |
2754 | #if EV_MULTIPLICITY |
|
|
2755 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2756 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2492 | |
2757 | |
2493 | EV_FREQUENT_CHECK; |
2758 | signals [w->signum - 1].loop = EV_A; |
|
|
2759 | #endif |
2494 | |
2760 | |
|
|
2761 | EV_FREQUENT_CHECK; |
|
|
2762 | |
|
|
2763 | #if EV_USE_SIGNALFD |
|
|
2764 | if (sigfd == -2) |
2495 | { |
2765 | { |
2496 | #ifndef _WIN32 |
2766 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2497 | sigset_t full, prev; |
2767 | if (sigfd < 0 && errno == EINVAL) |
2498 | sigfillset (&full); |
2768 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2499 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2500 | #endif |
|
|
2501 | |
2769 | |
2502 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2770 | if (sigfd >= 0) |
|
|
2771 | { |
|
|
2772 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2503 | |
2773 | |
2504 | #ifndef _WIN32 |
2774 | sigemptyset (&sigfd_set); |
2505 | sigprocmask (SIG_SETMASK, &prev, 0); |
2775 | |
2506 | #endif |
2776 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2777 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2778 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2779 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2780 | } |
2507 | } |
2781 | } |
|
|
2782 | |
|
|
2783 | if (sigfd >= 0) |
|
|
2784 | { |
|
|
2785 | /* TODO: check .head */ |
|
|
2786 | sigaddset (&sigfd_set, w->signum); |
|
|
2787 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2788 | |
|
|
2789 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2790 | } |
|
|
2791 | #endif |
2508 | |
2792 | |
2509 | ev_start (EV_A_ (W)w, 1); |
2793 | ev_start (EV_A_ (W)w, 1); |
2510 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2794 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2511 | |
2795 | |
2512 | if (!((WL)w)->next) |
2796 | if (!((WL)w)->next) |
|
|
2797 | # if EV_USE_SIGNALFD |
|
|
2798 | if (sigfd < 0) /*TODO*/ |
|
|
2799 | # endif |
2513 | { |
2800 | { |
2514 | #if _WIN32 |
2801 | # ifdef _WIN32 |
|
|
2802 | evpipe_init (EV_A); |
|
|
2803 | |
2515 | signal (w->signum, ev_sighandler); |
2804 | signal (w->signum, ev_sighandler); |
2516 | #else |
2805 | # else |
2517 | struct sigaction sa; |
2806 | struct sigaction sa; |
|
|
2807 | |
|
|
2808 | evpipe_init (EV_A); |
|
|
2809 | |
2518 | sa.sa_handler = ev_sighandler; |
2810 | sa.sa_handler = ev_sighandler; |
2519 | sigfillset (&sa.sa_mask); |
2811 | sigfillset (&sa.sa_mask); |
2520 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2812 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2521 | sigaction (w->signum, &sa, 0); |
2813 | sigaction (w->signum, &sa, 0); |
|
|
2814 | |
|
|
2815 | sigemptyset (&sa.sa_mask); |
|
|
2816 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2817 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2522 | #endif |
2818 | #endif |
2523 | } |
2819 | } |
2524 | |
2820 | |
2525 | EV_FREQUENT_CHECK; |
2821 | EV_FREQUENT_CHECK; |
2526 | } |
2822 | } |
2527 | |
2823 | |
2528 | void noinline |
2824 | void noinline |
… | |
… | |
2536 | |
2832 | |
2537 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2833 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2538 | ev_stop (EV_A_ (W)w); |
2834 | ev_stop (EV_A_ (W)w); |
2539 | |
2835 | |
2540 | if (!signals [w->signum - 1].head) |
2836 | if (!signals [w->signum - 1].head) |
|
|
2837 | { |
|
|
2838 | #if EV_MULTIPLICITY |
|
|
2839 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2840 | #endif |
|
|
2841 | #if EV_USE_SIGNALFD |
|
|
2842 | if (sigfd >= 0) |
|
|
2843 | { |
|
|
2844 | sigset_t ss; |
|
|
2845 | |
|
|
2846 | sigemptyset (&ss); |
|
|
2847 | sigaddset (&ss, w->signum); |
|
|
2848 | sigdelset (&sigfd_set, w->signum); |
|
|
2849 | |
|
|
2850 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2851 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2852 | } |
|
|
2853 | else |
|
|
2854 | #endif |
2541 | signal (w->signum, SIG_DFL); |
2855 | signal (w->signum, SIG_DFL); |
|
|
2856 | } |
2542 | |
2857 | |
2543 | EV_FREQUENT_CHECK; |
2858 | EV_FREQUENT_CHECK; |
2544 | } |
2859 | } |
|
|
2860 | |
|
|
2861 | #endif |
|
|
2862 | |
|
|
2863 | #if EV_CHILD_ENABLE |
2545 | |
2864 | |
2546 | void |
2865 | void |
2547 | ev_child_start (EV_P_ ev_child *w) |
2866 | ev_child_start (EV_P_ ev_child *w) |
2548 | { |
2867 | { |
2549 | #if EV_MULTIPLICITY |
2868 | #if EV_MULTIPLICITY |
… | |
… | |
2553 | return; |
2872 | return; |
2554 | |
2873 | |
2555 | EV_FREQUENT_CHECK; |
2874 | EV_FREQUENT_CHECK; |
2556 | |
2875 | |
2557 | ev_start (EV_A_ (W)w, 1); |
2876 | ev_start (EV_A_ (W)w, 1); |
2558 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2877 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2559 | |
2878 | |
2560 | EV_FREQUENT_CHECK; |
2879 | EV_FREQUENT_CHECK; |
2561 | } |
2880 | } |
2562 | |
2881 | |
2563 | void |
2882 | void |
… | |
… | |
2567 | if (expect_false (!ev_is_active (w))) |
2886 | if (expect_false (!ev_is_active (w))) |
2568 | return; |
2887 | return; |
2569 | |
2888 | |
2570 | EV_FREQUENT_CHECK; |
2889 | EV_FREQUENT_CHECK; |
2571 | |
2890 | |
2572 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2891 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
2573 | ev_stop (EV_A_ (W)w); |
2892 | ev_stop (EV_A_ (W)w); |
2574 | |
2893 | |
2575 | EV_FREQUENT_CHECK; |
2894 | EV_FREQUENT_CHECK; |
2576 | } |
2895 | } |
|
|
2896 | |
|
|
2897 | #endif |
2577 | |
2898 | |
2578 | #if EV_STAT_ENABLE |
2899 | #if EV_STAT_ENABLE |
2579 | |
2900 | |
2580 | # ifdef _WIN32 |
2901 | # ifdef _WIN32 |
2581 | # undef lstat |
2902 | # undef lstat |
… | |
… | |
2587 | #define MIN_STAT_INTERVAL 0.1074891 |
2908 | #define MIN_STAT_INTERVAL 0.1074891 |
2588 | |
2909 | |
2589 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2910 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2590 | |
2911 | |
2591 | #if EV_USE_INOTIFY |
2912 | #if EV_USE_INOTIFY |
2592 | # define EV_INOTIFY_BUFSIZE 8192 |
2913 | |
|
|
2914 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2915 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2593 | |
2916 | |
2594 | static void noinline |
2917 | static void noinline |
2595 | infy_add (EV_P_ ev_stat *w) |
2918 | infy_add (EV_P_ ev_stat *w) |
2596 | { |
2919 | { |
2597 | 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); |
2920 | 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); |
2598 | |
2921 | |
2599 | if (w->wd < 0) |
2922 | if (w->wd >= 0) |
|
|
2923 | { |
|
|
2924 | struct statfs sfs; |
|
|
2925 | |
|
|
2926 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2927 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2928 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2929 | |
|
|
2930 | if (!fs_2625) |
|
|
2931 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2932 | else if (!statfs (w->path, &sfs) |
|
|
2933 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2934 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2935 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2936 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2937 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2938 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2939 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2940 | else |
|
|
2941 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2600 | { |
2942 | } |
|
|
2943 | else |
|
|
2944 | { |
|
|
2945 | /* can't use inotify, continue to stat */ |
2601 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2946 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2602 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2603 | |
2947 | |
2604 | /* monitor some parent directory for speedup hints */ |
2948 | /* if path is not there, monitor some parent directory for speedup hints */ |
2605 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2949 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2606 | /* but an efficiency issue only */ |
2950 | /* but an efficiency issue only */ |
2607 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2951 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2608 | { |
2952 | { |
2609 | char path [4096]; |
2953 | char path [4096]; |
… | |
… | |
2625 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2969 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2626 | } |
2970 | } |
2627 | } |
2971 | } |
2628 | |
2972 | |
2629 | if (w->wd >= 0) |
2973 | if (w->wd >= 0) |
2630 | { |
|
|
2631 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2974 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2632 | |
2975 | |
2633 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2976 | /* now re-arm timer, if required */ |
2634 | /* unless the filesystem it known to be local, we therefore still poll */ |
2977 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2635 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2636 | struct statfs sfs; |
|
|
2637 | |
|
|
2638 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2639 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2640 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2641 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2642 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2643 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2644 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2645 | return; |
|
|
2646 | |
|
|
2647 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2648 | ev_timer_again (EV_A_ &w->timer); |
2978 | ev_timer_again (EV_A_ &w->timer); |
2649 | } |
2979 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2650 | } |
2980 | } |
2651 | |
2981 | |
2652 | static void noinline |
2982 | static void noinline |
2653 | infy_del (EV_P_ ev_stat *w) |
2983 | infy_del (EV_P_ ev_stat *w) |
2654 | { |
2984 | { |
… | |
… | |
2657 | |
2987 | |
2658 | if (wd < 0) |
2988 | if (wd < 0) |
2659 | return; |
2989 | return; |
2660 | |
2990 | |
2661 | w->wd = -2; |
2991 | w->wd = -2; |
2662 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
2992 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
2663 | wlist_del (&fs_hash [slot].head, (WL)w); |
2993 | wlist_del (&fs_hash [slot].head, (WL)w); |
2664 | |
2994 | |
2665 | /* remove this watcher, if others are watching it, they will rearm */ |
2995 | /* remove this watcher, if others are watching it, they will rearm */ |
2666 | inotify_rm_watch (fs_fd, wd); |
2996 | inotify_rm_watch (fs_fd, wd); |
2667 | } |
2997 | } |
… | |
… | |
2669 | static void noinline |
2999 | static void noinline |
2670 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3000 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2671 | { |
3001 | { |
2672 | if (slot < 0) |
3002 | if (slot < 0) |
2673 | /* overflow, need to check for all hash slots */ |
3003 | /* overflow, need to check for all hash slots */ |
2674 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3004 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2675 | infy_wd (EV_A_ slot, wd, ev); |
3005 | infy_wd (EV_A_ slot, wd, ev); |
2676 | else |
3006 | else |
2677 | { |
3007 | { |
2678 | WL w_; |
3008 | WL w_; |
2679 | |
3009 | |
2680 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3010 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2681 | { |
3011 | { |
2682 | ev_stat *w = (ev_stat *)w_; |
3012 | ev_stat *w = (ev_stat *)w_; |
2683 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3013 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2684 | |
3014 | |
2685 | if (w->wd == wd || wd == -1) |
3015 | if (w->wd == wd || wd == -1) |
2686 | { |
3016 | { |
2687 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3017 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2688 | { |
3018 | { |
2689 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3019 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2690 | w->wd = -1; |
3020 | w->wd = -1; |
2691 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2692 | } |
3022 | } |
2693 | |
3023 | |
2694 | stat_timer_cb (EV_A_ &w->timer, 0); |
3024 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2699 | |
3029 | |
2700 | static void |
3030 | static void |
2701 | infy_cb (EV_P_ ev_io *w, int revents) |
3031 | infy_cb (EV_P_ ev_io *w, int revents) |
2702 | { |
3032 | { |
2703 | char buf [EV_INOTIFY_BUFSIZE]; |
3033 | char buf [EV_INOTIFY_BUFSIZE]; |
2704 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2705 | int ofs; |
3034 | int ofs; |
2706 | int len = read (fs_fd, buf, sizeof (buf)); |
3035 | int len = read (fs_fd, buf, sizeof (buf)); |
2707 | |
3036 | |
2708 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3037 | for (ofs = 0; ofs < len; ) |
|
|
3038 | { |
|
|
3039 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2709 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3040 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3041 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3042 | } |
|
|
3043 | } |
|
|
3044 | |
|
|
3045 | inline_size unsigned int |
|
|
3046 | ev_linux_version (void) |
|
|
3047 | { |
|
|
3048 | struct utsname buf; |
|
|
3049 | unsigned int v; |
|
|
3050 | int i; |
|
|
3051 | char *p = buf.release; |
|
|
3052 | |
|
|
3053 | if (uname (&buf)) |
|
|
3054 | return 0; |
|
|
3055 | |
|
|
3056 | for (i = 3+1; --i; ) |
|
|
3057 | { |
|
|
3058 | unsigned int c = 0; |
|
|
3059 | |
|
|
3060 | for (;;) |
|
|
3061 | { |
|
|
3062 | if (*p >= '0' && *p <= '9') |
|
|
3063 | c = c * 10 + *p++ - '0'; |
|
|
3064 | else |
|
|
3065 | { |
|
|
3066 | p += *p == '.'; |
|
|
3067 | break; |
|
|
3068 | } |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | v = (v << 8) | c; |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | return v; |
2710 | } |
3075 | } |
2711 | |
3076 | |
2712 | inline_size void |
3077 | inline_size void |
2713 | check_2625 (EV_P) |
3078 | ev_check_2625 (EV_P) |
2714 | { |
3079 | { |
2715 | /* kernels < 2.6.25 are borked |
3080 | /* kernels < 2.6.25 are borked |
2716 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3081 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2717 | */ |
3082 | */ |
2718 | struct utsname buf; |
3083 | if (ev_linux_version () < 0x020619) |
2719 | int major, minor, micro; |
|
|
2720 | |
|
|
2721 | if (uname (&buf)) |
|
|
2722 | return; |
3084 | return; |
2723 | |
3085 | |
2724 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2725 | return; |
|
|
2726 | |
|
|
2727 | if (major < 2 |
|
|
2728 | || (major == 2 && minor < 6) |
|
|
2729 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2730 | return; |
|
|
2731 | |
|
|
2732 | fs_2625 = 1; |
3086 | fs_2625 = 1; |
|
|
3087 | } |
|
|
3088 | |
|
|
3089 | inline_size int |
|
|
3090 | infy_newfd (void) |
|
|
3091 | { |
|
|
3092 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3093 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3094 | if (fd >= 0) |
|
|
3095 | return fd; |
|
|
3096 | #endif |
|
|
3097 | return inotify_init (); |
2733 | } |
3098 | } |
2734 | |
3099 | |
2735 | inline_size void |
3100 | inline_size void |
2736 | infy_init (EV_P) |
3101 | infy_init (EV_P) |
2737 | { |
3102 | { |
2738 | if (fs_fd != -2) |
3103 | if (fs_fd != -2) |
2739 | return; |
3104 | return; |
2740 | |
3105 | |
2741 | fs_fd = -1; |
3106 | fs_fd = -1; |
2742 | |
3107 | |
2743 | check_2625 (EV_A); |
3108 | ev_check_2625 (EV_A); |
2744 | |
3109 | |
2745 | fs_fd = inotify_init (); |
3110 | fs_fd = infy_newfd (); |
2746 | |
3111 | |
2747 | if (fs_fd >= 0) |
3112 | if (fs_fd >= 0) |
2748 | { |
3113 | { |
|
|
3114 | fd_intern (fs_fd); |
2749 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3115 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2750 | ev_set_priority (&fs_w, EV_MAXPRI); |
3116 | ev_set_priority (&fs_w, EV_MAXPRI); |
2751 | ev_io_start (EV_A_ &fs_w); |
3117 | ev_io_start (EV_A_ &fs_w); |
|
|
3118 | ev_unref (EV_A); |
2752 | } |
3119 | } |
2753 | } |
3120 | } |
2754 | |
3121 | |
2755 | inline_size void |
3122 | inline_size void |
2756 | infy_fork (EV_P) |
3123 | infy_fork (EV_P) |
… | |
… | |
2758 | int slot; |
3125 | int slot; |
2759 | |
3126 | |
2760 | if (fs_fd < 0) |
3127 | if (fs_fd < 0) |
2761 | return; |
3128 | return; |
2762 | |
3129 | |
|
|
3130 | ev_ref (EV_A); |
|
|
3131 | ev_io_stop (EV_A_ &fs_w); |
2763 | close (fs_fd); |
3132 | close (fs_fd); |
2764 | fs_fd = inotify_init (); |
3133 | fs_fd = infy_newfd (); |
2765 | |
3134 | |
|
|
3135 | if (fs_fd >= 0) |
|
|
3136 | { |
|
|
3137 | fd_intern (fs_fd); |
|
|
3138 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3139 | ev_io_start (EV_A_ &fs_w); |
|
|
3140 | ev_unref (EV_A); |
|
|
3141 | } |
|
|
3142 | |
2766 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3143 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2767 | { |
3144 | { |
2768 | WL w_ = fs_hash [slot].head; |
3145 | WL w_ = fs_hash [slot].head; |
2769 | fs_hash [slot].head = 0; |
3146 | fs_hash [slot].head = 0; |
2770 | |
3147 | |
2771 | while (w_) |
3148 | while (w_) |
… | |
… | |
2776 | w->wd = -1; |
3153 | w->wd = -1; |
2777 | |
3154 | |
2778 | if (fs_fd >= 0) |
3155 | if (fs_fd >= 0) |
2779 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3156 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2780 | else |
3157 | else |
|
|
3158 | { |
|
|
3159 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3160 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2781 | ev_timer_again (EV_A_ &w->timer); |
3161 | ev_timer_again (EV_A_ &w->timer); |
|
|
3162 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3163 | } |
2782 | } |
3164 | } |
2783 | } |
3165 | } |
2784 | } |
3166 | } |
2785 | |
3167 | |
2786 | #endif |
3168 | #endif |
… | |
… | |
2803 | static void noinline |
3185 | static void noinline |
2804 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3186 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2805 | { |
3187 | { |
2806 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3188 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2807 | |
3189 | |
2808 | /* we copy this here each the time so that */ |
3190 | ev_statdata prev = w->attr; |
2809 | /* prev has the old value when the callback gets invoked */ |
|
|
2810 | w->prev = w->attr; |
|
|
2811 | ev_stat_stat (EV_A_ w); |
3191 | ev_stat_stat (EV_A_ w); |
2812 | |
3192 | |
2813 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3193 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2814 | if ( |
3194 | if ( |
2815 | w->prev.st_dev != w->attr.st_dev |
3195 | prev.st_dev != w->attr.st_dev |
2816 | || w->prev.st_ino != w->attr.st_ino |
3196 | || prev.st_ino != w->attr.st_ino |
2817 | || w->prev.st_mode != w->attr.st_mode |
3197 | || prev.st_mode != w->attr.st_mode |
2818 | || w->prev.st_nlink != w->attr.st_nlink |
3198 | || prev.st_nlink != w->attr.st_nlink |
2819 | || w->prev.st_uid != w->attr.st_uid |
3199 | || prev.st_uid != w->attr.st_uid |
2820 | || w->prev.st_gid != w->attr.st_gid |
3200 | || prev.st_gid != w->attr.st_gid |
2821 | || w->prev.st_rdev != w->attr.st_rdev |
3201 | || prev.st_rdev != w->attr.st_rdev |
2822 | || w->prev.st_size != w->attr.st_size |
3202 | || prev.st_size != w->attr.st_size |
2823 | || w->prev.st_atime != w->attr.st_atime |
3203 | || prev.st_atime != w->attr.st_atime |
2824 | || w->prev.st_mtime != w->attr.st_mtime |
3204 | || prev.st_mtime != w->attr.st_mtime |
2825 | || w->prev.st_ctime != w->attr.st_ctime |
3205 | || prev.st_ctime != w->attr.st_ctime |
2826 | ) { |
3206 | ) { |
|
|
3207 | /* we only update w->prev on actual differences */ |
|
|
3208 | /* in case we test more often than invoke the callback, */ |
|
|
3209 | /* to ensure that prev is always different to attr */ |
|
|
3210 | w->prev = prev; |
|
|
3211 | |
2827 | #if EV_USE_INOTIFY |
3212 | #if EV_USE_INOTIFY |
2828 | if (fs_fd >= 0) |
3213 | if (fs_fd >= 0) |
2829 | { |
3214 | { |
2830 | infy_del (EV_A_ w); |
3215 | infy_del (EV_A_ w); |
2831 | infy_add (EV_A_ w); |
3216 | infy_add (EV_A_ w); |
… | |
… | |
2856 | |
3241 | |
2857 | if (fs_fd >= 0) |
3242 | if (fs_fd >= 0) |
2858 | infy_add (EV_A_ w); |
3243 | infy_add (EV_A_ w); |
2859 | else |
3244 | else |
2860 | #endif |
3245 | #endif |
|
|
3246 | { |
2861 | ev_timer_again (EV_A_ &w->timer); |
3247 | ev_timer_again (EV_A_ &w->timer); |
|
|
3248 | ev_unref (EV_A); |
|
|
3249 | } |
2862 | |
3250 | |
2863 | ev_start (EV_A_ (W)w, 1); |
3251 | ev_start (EV_A_ (W)w, 1); |
2864 | |
3252 | |
2865 | EV_FREQUENT_CHECK; |
3253 | EV_FREQUENT_CHECK; |
2866 | } |
3254 | } |
… | |
… | |
2875 | EV_FREQUENT_CHECK; |
3263 | EV_FREQUENT_CHECK; |
2876 | |
3264 | |
2877 | #if EV_USE_INOTIFY |
3265 | #if EV_USE_INOTIFY |
2878 | infy_del (EV_A_ w); |
3266 | infy_del (EV_A_ w); |
2879 | #endif |
3267 | #endif |
|
|
3268 | |
|
|
3269 | if (ev_is_active (&w->timer)) |
|
|
3270 | { |
|
|
3271 | ev_ref (EV_A); |
2880 | ev_timer_stop (EV_A_ &w->timer); |
3272 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3273 | } |
2881 | |
3274 | |
2882 | ev_stop (EV_A_ (W)w); |
3275 | ev_stop (EV_A_ (W)w); |
2883 | |
3276 | |
2884 | EV_FREQUENT_CHECK; |
3277 | EV_FREQUENT_CHECK; |
2885 | } |
3278 | } |
… | |
… | |
2930 | |
3323 | |
2931 | EV_FREQUENT_CHECK; |
3324 | EV_FREQUENT_CHECK; |
2932 | } |
3325 | } |
2933 | #endif |
3326 | #endif |
2934 | |
3327 | |
|
|
3328 | #if EV_PREPARE_ENABLE |
2935 | void |
3329 | void |
2936 | ev_prepare_start (EV_P_ ev_prepare *w) |
3330 | ev_prepare_start (EV_P_ ev_prepare *w) |
2937 | { |
3331 | { |
2938 | if (expect_false (ev_is_active (w))) |
3332 | if (expect_false (ev_is_active (w))) |
2939 | return; |
3333 | return; |
… | |
… | |
2965 | |
3359 | |
2966 | ev_stop (EV_A_ (W)w); |
3360 | ev_stop (EV_A_ (W)w); |
2967 | |
3361 | |
2968 | EV_FREQUENT_CHECK; |
3362 | EV_FREQUENT_CHECK; |
2969 | } |
3363 | } |
|
|
3364 | #endif |
2970 | |
3365 | |
|
|
3366 | #if EV_CHECK_ENABLE |
2971 | void |
3367 | void |
2972 | ev_check_start (EV_P_ ev_check *w) |
3368 | ev_check_start (EV_P_ ev_check *w) |
2973 | { |
3369 | { |
2974 | if (expect_false (ev_is_active (w))) |
3370 | if (expect_false (ev_is_active (w))) |
2975 | return; |
3371 | return; |
… | |
… | |
3001 | |
3397 | |
3002 | ev_stop (EV_A_ (W)w); |
3398 | ev_stop (EV_A_ (W)w); |
3003 | |
3399 | |
3004 | EV_FREQUENT_CHECK; |
3400 | EV_FREQUENT_CHECK; |
3005 | } |
3401 | } |
|
|
3402 | #endif |
3006 | |
3403 | |
3007 | #if EV_EMBED_ENABLE |
3404 | #if EV_EMBED_ENABLE |
3008 | void noinline |
3405 | void noinline |
3009 | ev_embed_sweep (EV_P_ ev_embed *w) |
3406 | ev_embed_sweep (EV_P_ ev_embed *w) |
3010 | { |
3407 | { |
… | |
… | |
3026 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3423 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3027 | { |
3424 | { |
3028 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3425 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3029 | |
3426 | |
3030 | { |
3427 | { |
3031 | struct ev_loop *loop = w->other; |
3428 | EV_P = w->other; |
3032 | |
3429 | |
3033 | while (fdchangecnt) |
3430 | while (fdchangecnt) |
3034 | { |
3431 | { |
3035 | fd_reify (EV_A); |
3432 | fd_reify (EV_A); |
3036 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3433 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3044 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3441 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3045 | |
3442 | |
3046 | ev_embed_stop (EV_A_ w); |
3443 | ev_embed_stop (EV_A_ w); |
3047 | |
3444 | |
3048 | { |
3445 | { |
3049 | struct ev_loop *loop = w->other; |
3446 | EV_P = w->other; |
3050 | |
3447 | |
3051 | ev_loop_fork (EV_A); |
3448 | ev_loop_fork (EV_A); |
3052 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3449 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3053 | } |
3450 | } |
3054 | |
3451 | |
… | |
… | |
3068 | { |
3465 | { |
3069 | if (expect_false (ev_is_active (w))) |
3466 | if (expect_false (ev_is_active (w))) |
3070 | return; |
3467 | return; |
3071 | |
3468 | |
3072 | { |
3469 | { |
3073 | struct ev_loop *loop = w->other; |
3470 | EV_P = w->other; |
3074 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3471 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3075 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3472 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3076 | } |
3473 | } |
3077 | |
3474 | |
3078 | EV_FREQUENT_CHECK; |
3475 | EV_FREQUENT_CHECK; |
… | |
… | |
3105 | |
3502 | |
3106 | ev_io_stop (EV_A_ &w->io); |
3503 | ev_io_stop (EV_A_ &w->io); |
3107 | ev_prepare_stop (EV_A_ &w->prepare); |
3504 | ev_prepare_stop (EV_A_ &w->prepare); |
3108 | ev_fork_stop (EV_A_ &w->fork); |
3505 | ev_fork_stop (EV_A_ &w->fork); |
3109 | |
3506 | |
|
|
3507 | ev_stop (EV_A_ (W)w); |
|
|
3508 | |
3110 | EV_FREQUENT_CHECK; |
3509 | EV_FREQUENT_CHECK; |
3111 | } |
3510 | } |
3112 | #endif |
3511 | #endif |
3113 | |
3512 | |
3114 | #if EV_FORK_ENABLE |
3513 | #if EV_FORK_ENABLE |
… | |
… | |
3190 | |
3589 | |
3191 | void |
3590 | void |
3192 | ev_async_send (EV_P_ ev_async *w) |
3591 | ev_async_send (EV_P_ ev_async *w) |
3193 | { |
3592 | { |
3194 | w->sent = 1; |
3593 | w->sent = 1; |
3195 | evpipe_write (EV_A_ &gotasync); |
3594 | evpipe_write (EV_A_ &async_pending); |
3196 | } |
3595 | } |
3197 | #endif |
3596 | #endif |
3198 | |
3597 | |
3199 | /*****************************************************************************/ |
3598 | /*****************************************************************************/ |
3200 | |
3599 | |
… | |
… | |
3240 | { |
3639 | { |
3241 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3640 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3242 | |
3641 | |
3243 | if (expect_false (!once)) |
3642 | if (expect_false (!once)) |
3244 | { |
3643 | { |
3245 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3644 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
3246 | return; |
3645 | return; |
3247 | } |
3646 | } |
3248 | |
3647 | |
3249 | once->cb = cb; |
3648 | once->cb = cb; |
3250 | once->arg = arg; |
3649 | once->arg = arg; |
… | |
… | |
3337 | if (types & EV_ASYNC) |
3736 | if (types & EV_ASYNC) |
3338 | for (i = asynccnt; i--; ) |
3737 | for (i = asynccnt; i--; ) |
3339 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3738 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3340 | #endif |
3739 | #endif |
3341 | |
3740 | |
|
|
3741 | #if EV_PREPARE_ENABLE |
3342 | if (types & EV_PREPARE) |
3742 | if (types & EV_PREPARE) |
3343 | for (i = preparecnt; i--; ) |
3743 | for (i = preparecnt; i--; ) |
3344 | #if EV_EMBED_ENABLE |
3744 | # if EV_EMBED_ENABLE |
3345 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3745 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3346 | #endif |
3746 | # endif |
3347 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3747 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3748 | #endif |
3348 | |
3749 | |
|
|
3750 | #if EV_CHECK_ENABLE |
3349 | if (types & EV_CHECK) |
3751 | if (types & EV_CHECK) |
3350 | for (i = checkcnt; i--; ) |
3752 | for (i = checkcnt; i--; ) |
3351 | cb (EV_A_ EV_CHECK, checks [i]); |
3753 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3754 | #endif |
3352 | |
3755 | |
|
|
3756 | #if EV_SIGNAL_ENABLE |
3353 | if (types & EV_SIGNAL) |
3757 | if (types & EV_SIGNAL) |
3354 | for (i = 0; i < signalmax; ++i) |
3758 | for (i = 0; i < EV_NSIG - 1; ++i) |
3355 | for (wl = signals [i].head; wl; ) |
3759 | for (wl = signals [i].head; wl; ) |
3356 | { |
3760 | { |
3357 | wn = wl->next; |
3761 | wn = wl->next; |
3358 | cb (EV_A_ EV_SIGNAL, wl); |
3762 | cb (EV_A_ EV_SIGNAL, wl); |
3359 | wl = wn; |
3763 | wl = wn; |
3360 | } |
3764 | } |
|
|
3765 | #endif |
3361 | |
3766 | |
|
|
3767 | #if EV_CHILD_ENABLE |
3362 | if (types & EV_CHILD) |
3768 | if (types & EV_CHILD) |
3363 | for (i = EV_PID_HASHSIZE; i--; ) |
3769 | for (i = (EV_PID_HASHSIZE); i--; ) |
3364 | for (wl = childs [i]; wl; ) |
3770 | for (wl = childs [i]; wl; ) |
3365 | { |
3771 | { |
3366 | wn = wl->next; |
3772 | wn = wl->next; |
3367 | cb (EV_A_ EV_CHILD, wl); |
3773 | cb (EV_A_ EV_CHILD, wl); |
3368 | wl = wn; |
3774 | wl = wn; |
3369 | } |
3775 | } |
|
|
3776 | #endif |
3370 | /* EV_STAT 0x00001000 /* stat data changed */ |
3777 | /* EV_STAT 0x00001000 /* stat data changed */ |
3371 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3778 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3372 | } |
3779 | } |
3373 | #endif |
3780 | #endif |
3374 | |
3781 | |