1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008 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 | * |
… | |
… | |
39 | |
39 | |
40 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
41 | extern "C" { |
41 | extern "C" { |
42 | #endif |
42 | #endif |
43 | |
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
44 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
45 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
46 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
47 | # else |
48 | # else |
48 | # include "config.h" |
49 | # include "config.h" |
49 | # endif |
50 | # endif |
50 | |
51 | |
|
|
52 | # if HAVE_CLOCK_SYSCALL |
|
|
53 | # ifndef EV_USE_CLOCK_SYSCALL |
|
|
54 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
55 | # ifndef EV_USE_REALTIME |
|
|
56 | # define EV_USE_REALTIME 0 |
|
|
57 | # endif |
|
|
58 | # ifndef EV_USE_MONOTONIC |
|
|
59 | # define EV_USE_MONOTONIC 1 |
|
|
60 | # endif |
|
|
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
63 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
64 | # endif |
|
|
65 | |
51 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
52 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
53 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
54 | # endif |
69 | # endif |
55 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
56 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
57 | # endif |
72 | # endif |
58 | # else |
73 | # else |
59 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
60 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
61 | # endif |
76 | # endif |
… | |
… | |
95 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
96 | # endif |
111 | # endif |
97 | # endif |
112 | # endif |
98 | |
113 | |
99 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
100 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
101 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
102 | # else |
117 | # else |
103 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
104 | # endif |
119 | # endif |
105 | # endif |
120 | # endif |
… | |
… | |
118 | # else |
133 | # else |
119 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
120 | # endif |
135 | # endif |
121 | # endif |
136 | # endif |
122 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
140 | # define EV_USE_SIGNALFD 1 |
|
|
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
|
|
144 | # endif |
|
|
145 | |
|
|
146 | # ifndef EV_USE_EVENTFD |
|
|
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD 1 |
|
|
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
|
|
152 | # endif |
|
|
153 | |
123 | #endif |
154 | #endif |
124 | |
155 | |
125 | #include <math.h> |
156 | #include <math.h> |
126 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
127 | #include <fcntl.h> |
159 | #include <fcntl.h> |
128 | #include <stddef.h> |
160 | #include <stddef.h> |
129 | |
161 | |
130 | #include <stdio.h> |
162 | #include <stdio.h> |
131 | |
163 | |
132 | #include <assert.h> |
164 | #include <assert.h> |
133 | #include <errno.h> |
165 | #include <errno.h> |
134 | #include <sys/types.h> |
166 | #include <sys/types.h> |
135 | #include <time.h> |
167 | #include <time.h> |
|
|
168 | #include <limits.h> |
136 | |
169 | |
137 | #include <signal.h> |
170 | #include <signal.h> |
138 | |
171 | |
139 | #ifdef EV_H |
172 | #ifdef EV_H |
140 | # include EV_H |
173 | # include EV_H |
… | |
… | |
145 | #ifndef _WIN32 |
178 | #ifndef _WIN32 |
146 | # include <sys/time.h> |
179 | # include <sys/time.h> |
147 | # include <sys/wait.h> |
180 | # include <sys/wait.h> |
148 | # include <unistd.h> |
181 | # include <unistd.h> |
149 | #else |
182 | #else |
|
|
183 | # include <io.h> |
150 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
151 | # include <windows.h> |
185 | # include <windows.h> |
152 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
153 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
154 | # endif |
188 | # endif |
155 | #endif |
189 | #endif |
156 | |
190 | |
157 | /**/ |
191 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
|
|
192 | |
|
|
193 | /* try to deduce the maximum number of signals on this platform */ |
|
|
194 | #if defined (EV_NSIG) |
|
|
195 | /* use what's provided */ |
|
|
196 | #elif defined (NSIG) |
|
|
197 | # define EV_NSIG (NSIG) |
|
|
198 | #elif defined(_NSIG) |
|
|
199 | # define EV_NSIG (_NSIG) |
|
|
200 | #elif defined (SIGMAX) |
|
|
201 | # define EV_NSIG (SIGMAX+1) |
|
|
202 | #elif defined (SIG_MAX) |
|
|
203 | # define EV_NSIG (SIG_MAX+1) |
|
|
204 | #elif defined (_SIG_MAX) |
|
|
205 | # define EV_NSIG (_SIG_MAX+1) |
|
|
206 | #elif defined (MAXSIG) |
|
|
207 | # define EV_NSIG (MAXSIG+1) |
|
|
208 | #elif defined (MAX_SIG) |
|
|
209 | # define EV_NSIG (MAX_SIG+1) |
|
|
210 | #elif defined (SIGARRAYSIZE) |
|
|
211 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
|
|
212 | #elif defined (_sys_nsig) |
|
|
213 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
|
|
214 | #else |
|
|
215 | # error "unable to find value for NSIG, please report" |
|
|
216 | /* to make it compile regardless, just remove the above line */ |
|
|
217 | # define EV_NSIG 65 |
|
|
218 | #endif |
|
|
219 | |
|
|
220 | #ifndef EV_USE_CLOCK_SYSCALL |
|
|
221 | # if __linux && __GLIBC__ >= 2 |
|
|
222 | # define EV_USE_CLOCK_SYSCALL 1 |
|
|
223 | # else |
|
|
224 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
225 | # endif |
|
|
226 | #endif |
158 | |
227 | |
159 | #ifndef EV_USE_MONOTONIC |
228 | #ifndef EV_USE_MONOTONIC |
|
|
229 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
|
|
230 | # define EV_USE_MONOTONIC 1 |
|
|
231 | # else |
160 | # define EV_USE_MONOTONIC 0 |
232 | # define EV_USE_MONOTONIC 0 |
|
|
233 | # endif |
161 | #endif |
234 | #endif |
162 | |
235 | |
163 | #ifndef EV_USE_REALTIME |
236 | #ifndef EV_USE_REALTIME |
164 | # define EV_USE_REALTIME 0 |
237 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
165 | #endif |
238 | #endif |
166 | |
239 | |
167 | #ifndef EV_USE_NANOSLEEP |
240 | #ifndef EV_USE_NANOSLEEP |
|
|
241 | # if _POSIX_C_SOURCE >= 199309L |
|
|
242 | # define EV_USE_NANOSLEEP 1 |
|
|
243 | # else |
168 | # define EV_USE_NANOSLEEP 0 |
244 | # define EV_USE_NANOSLEEP 0 |
|
|
245 | # endif |
169 | #endif |
246 | #endif |
170 | |
247 | |
171 | #ifndef EV_USE_SELECT |
248 | #ifndef EV_USE_SELECT |
172 | # define EV_USE_SELECT 1 |
249 | # define EV_USE_SELECT 1 |
173 | #endif |
250 | #endif |
… | |
… | |
179 | # define EV_USE_POLL 1 |
256 | # define EV_USE_POLL 1 |
180 | # endif |
257 | # endif |
181 | #endif |
258 | #endif |
182 | |
259 | |
183 | #ifndef EV_USE_EPOLL |
260 | #ifndef EV_USE_EPOLL |
|
|
261 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
262 | # define EV_USE_EPOLL 1 |
|
|
263 | # else |
184 | # define EV_USE_EPOLL 0 |
264 | # define EV_USE_EPOLL 0 |
|
|
265 | # endif |
185 | #endif |
266 | #endif |
186 | |
267 | |
187 | #ifndef EV_USE_KQUEUE |
268 | #ifndef EV_USE_KQUEUE |
188 | # define EV_USE_KQUEUE 0 |
269 | # define EV_USE_KQUEUE 0 |
189 | #endif |
270 | #endif |
… | |
… | |
191 | #ifndef EV_USE_PORT |
272 | #ifndef EV_USE_PORT |
192 | # define EV_USE_PORT 0 |
273 | # define EV_USE_PORT 0 |
193 | #endif |
274 | #endif |
194 | |
275 | |
195 | #ifndef EV_USE_INOTIFY |
276 | #ifndef EV_USE_INOTIFY |
|
|
277 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
|
|
278 | # define EV_USE_INOTIFY 1 |
|
|
279 | # else |
196 | # define EV_USE_INOTIFY 0 |
280 | # define EV_USE_INOTIFY 0 |
|
|
281 | # endif |
197 | #endif |
282 | #endif |
198 | |
283 | |
199 | #ifndef EV_PID_HASHSIZE |
284 | #ifndef EV_PID_HASHSIZE |
200 | # if EV_MINIMAL |
285 | # if EV_MINIMAL |
201 | # define EV_PID_HASHSIZE 1 |
286 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
210 | # else |
295 | # else |
211 | # define EV_INOTIFY_HASHSIZE 16 |
296 | # define EV_INOTIFY_HASHSIZE 16 |
212 | # endif |
297 | # endif |
213 | #endif |
298 | #endif |
214 | |
299 | |
215 | /**/ |
300 | #ifndef EV_USE_EVENTFD |
|
|
301 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
302 | # define EV_USE_EVENTFD 1 |
|
|
303 | # else |
|
|
304 | # define EV_USE_EVENTFD 0 |
|
|
305 | # endif |
|
|
306 | #endif |
|
|
307 | |
|
|
308 | #ifndef EV_USE_SIGNALFD |
|
|
309 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
|
|
310 | # define EV_USE_SIGNALFD 1 |
|
|
311 | # else |
|
|
312 | # define EV_USE_SIGNALFD 0 |
|
|
313 | # endif |
|
|
314 | #endif |
|
|
315 | |
|
|
316 | #if 0 /* debugging */ |
|
|
317 | # define EV_VERIFY 3 |
|
|
318 | # define EV_USE_4HEAP 1 |
|
|
319 | # define EV_HEAP_CACHE_AT 1 |
|
|
320 | #endif |
|
|
321 | |
|
|
322 | #ifndef EV_VERIFY |
|
|
323 | # define EV_VERIFY !EV_MINIMAL |
|
|
324 | #endif |
|
|
325 | |
|
|
326 | #ifndef EV_USE_4HEAP |
|
|
327 | # define EV_USE_4HEAP !EV_MINIMAL |
|
|
328 | #endif |
|
|
329 | |
|
|
330 | #ifndef EV_HEAP_CACHE_AT |
|
|
331 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
335 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
336 | #if EV_USE_CLOCK_SYSCALL |
|
|
337 | # include <syscall.h> |
|
|
338 | # ifdef SYS_clock_gettime |
|
|
339 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
340 | # undef EV_USE_MONOTONIC |
|
|
341 | # define EV_USE_MONOTONIC 1 |
|
|
342 | # else |
|
|
343 | # undef EV_USE_CLOCK_SYSCALL |
|
|
344 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
345 | # endif |
|
|
346 | #endif |
|
|
347 | |
|
|
348 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
349 | |
|
|
350 | #ifdef _AIX |
|
|
351 | /* AIX has a completely broken poll.h header */ |
|
|
352 | # undef EV_USE_POLL |
|
|
353 | # define EV_USE_POLL 0 |
|
|
354 | #endif |
216 | |
355 | |
217 | #ifndef CLOCK_MONOTONIC |
356 | #ifndef CLOCK_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
357 | # undef EV_USE_MONOTONIC |
219 | # define EV_USE_MONOTONIC 0 |
358 | # define EV_USE_MONOTONIC 0 |
220 | #endif |
359 | #endif |
… | |
… | |
234 | # include <sys/select.h> |
373 | # include <sys/select.h> |
235 | # endif |
374 | # endif |
236 | #endif |
375 | #endif |
237 | |
376 | |
238 | #if EV_USE_INOTIFY |
377 | #if EV_USE_INOTIFY |
|
|
378 | # include <sys/utsname.h> |
|
|
379 | # include <sys/statfs.h> |
239 | # include <sys/inotify.h> |
380 | # include <sys/inotify.h> |
|
|
381 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
382 | # ifndef IN_DONT_FOLLOW |
|
|
383 | # undef EV_USE_INOTIFY |
|
|
384 | # define EV_USE_INOTIFY 0 |
|
|
385 | # endif |
240 | #endif |
386 | #endif |
241 | |
387 | |
242 | #if EV_SELECT_IS_WINSOCKET |
388 | #if EV_SELECT_IS_WINSOCKET |
243 | # include <winsock.h> |
389 | # include <winsock.h> |
244 | #endif |
390 | #endif |
245 | |
391 | |
|
|
392 | #if EV_USE_EVENTFD |
|
|
393 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
394 | # include <stdint.h> |
|
|
395 | # ifndef EFD_NONBLOCK |
|
|
396 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
397 | # endif |
|
|
398 | # ifndef EFD_CLOEXEC |
|
|
399 | # ifdef O_CLOEXEC |
|
|
400 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
401 | # else |
|
|
402 | # define EFD_CLOEXEC 02000000 |
|
|
403 | # endif |
|
|
404 | # endif |
|
|
405 | # ifdef __cplusplus |
|
|
406 | extern "C" { |
|
|
407 | # endif |
|
|
408 | int (eventfd) (unsigned int initval, int flags); |
|
|
409 | # ifdef __cplusplus |
|
|
410 | } |
|
|
411 | # endif |
|
|
412 | #endif |
|
|
413 | |
|
|
414 | #if EV_USE_SIGNALFD |
|
|
415 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
416 | # include <stdint.h> |
|
|
417 | # ifndef SFD_NONBLOCK |
|
|
418 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
419 | # endif |
|
|
420 | # ifndef SFD_CLOEXEC |
|
|
421 | # ifdef O_CLOEXEC |
|
|
422 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
423 | # else |
|
|
424 | # define SFD_CLOEXEC 02000000 |
|
|
425 | # endif |
|
|
426 | # endif |
|
|
427 | # ifdef __cplusplus |
|
|
428 | extern "C" { |
|
|
429 | # endif |
|
|
430 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
431 | |
|
|
432 | struct signalfd_siginfo |
|
|
433 | { |
|
|
434 | uint32_t ssi_signo; |
|
|
435 | char pad[128 - sizeof (uint32_t)]; |
|
|
436 | }; |
|
|
437 | # ifdef __cplusplus |
|
|
438 | } |
|
|
439 | # endif |
|
|
440 | #endif |
|
|
441 | |
|
|
442 | |
246 | /**/ |
443 | /**/ |
|
|
444 | |
|
|
445 | #if EV_VERIFY >= 3 |
|
|
446 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
|
447 | #else |
|
|
448 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
449 | #endif |
247 | |
450 | |
248 | /* |
451 | /* |
249 | * This is used to avoid floating point rounding problems. |
452 | * This is used to avoid floating point rounding problems. |
250 | * It is added to ev_rt_now when scheduling periodics |
453 | * It is added to ev_rt_now when scheduling periodics |
251 | * to ensure progress, time-wise, even when rounding |
454 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
255 | */ |
458 | */ |
256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
459 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
257 | |
460 | |
258 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
461 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
259 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
462 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
261 | |
463 | |
262 | #if __GNUC__ >= 4 |
464 | #if __GNUC__ >= 4 |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
465 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
264 | # define noinline __attribute__ ((noinline)) |
466 | # define noinline __attribute__ ((noinline)) |
265 | #else |
467 | #else |
266 | # define expect(expr,value) (expr) |
468 | # define expect(expr,value) (expr) |
267 | # define noinline |
469 | # define noinline |
268 | # if __STDC_VERSION__ < 199901L |
470 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
269 | # define inline |
471 | # define inline |
270 | # endif |
472 | # endif |
271 | #endif |
473 | #endif |
272 | |
474 | |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
475 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
278 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
279 | #else |
481 | #else |
280 | # define inline_speed static inline |
482 | # define inline_speed static inline |
281 | #endif |
483 | #endif |
282 | |
484 | |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
485 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
486 | |
|
|
487 | #if EV_MINPRI == EV_MAXPRI |
|
|
488 | # define ABSPRI(w) (((W)w), 0) |
|
|
489 | #else |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
490 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
491 | #endif |
285 | |
492 | |
286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
493 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
494 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
288 | |
495 | |
289 | typedef ev_watcher *W; |
496 | typedef ev_watcher *W; |
290 | typedef ev_watcher_list *WL; |
497 | typedef ev_watcher_list *WL; |
291 | typedef ev_watcher_time *WT; |
498 | typedef ev_watcher_time *WT; |
292 | |
499 | |
293 | #if EV_USE_MONOTONIC |
500 | #define ev_active(w) ((W)(w))->active |
|
|
501 | #define ev_at(w) ((WT)(w))->at |
|
|
502 | |
|
|
503 | #if EV_USE_REALTIME |
294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
504 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
295 | /* giving it a reasonably high chance of working on typical architetcures */ |
505 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
506 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
507 | #endif |
|
|
508 | |
|
|
509 | #if EV_USE_MONOTONIC |
296 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
510 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
511 | #endif |
|
|
512 | |
|
|
513 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
514 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
515 | #endif |
|
|
516 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
517 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
518 | #endif |
|
|
519 | #ifndef EV_WIN32_CLOSE_FD |
|
|
520 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
297 | #endif |
521 | #endif |
298 | |
522 | |
299 | #ifdef _WIN32 |
523 | #ifdef _WIN32 |
300 | # include "ev_win32.c" |
524 | # include "ev_win32.c" |
301 | #endif |
525 | #endif |
… | |
… | |
309 | { |
533 | { |
310 | syserr_cb = cb; |
534 | syserr_cb = cb; |
311 | } |
535 | } |
312 | |
536 | |
313 | static void noinline |
537 | static void noinline |
314 | syserr (const char *msg) |
538 | ev_syserr (const char *msg) |
315 | { |
539 | { |
316 | if (!msg) |
540 | if (!msg) |
317 | msg = "(libev) system error"; |
541 | msg = "(libev) system error"; |
318 | |
542 | |
319 | if (syserr_cb) |
543 | if (syserr_cb) |
… | |
… | |
323 | perror (msg); |
547 | perror (msg); |
324 | abort (); |
548 | abort (); |
325 | } |
549 | } |
326 | } |
550 | } |
327 | |
551 | |
|
|
552 | static void * |
|
|
553 | ev_realloc_emul (void *ptr, long size) |
|
|
554 | { |
|
|
555 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
556 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
557 | * the single unix specification, so work around them here. |
|
|
558 | */ |
|
|
559 | |
|
|
560 | if (size) |
|
|
561 | return realloc (ptr, size); |
|
|
562 | |
|
|
563 | free (ptr); |
|
|
564 | return 0; |
|
|
565 | } |
|
|
566 | |
328 | static void *(*alloc)(void *ptr, long size); |
567 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
329 | |
568 | |
330 | void |
569 | void |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
570 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
332 | { |
571 | { |
333 | alloc = cb; |
572 | alloc = cb; |
334 | } |
573 | } |
335 | |
574 | |
336 | inline_speed void * |
575 | inline_speed void * |
337 | ev_realloc (void *ptr, long size) |
576 | ev_realloc (void *ptr, long size) |
338 | { |
577 | { |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
578 | ptr = alloc (ptr, size); |
340 | |
579 | |
341 | if (!ptr && size) |
580 | if (!ptr && size) |
342 | { |
581 | { |
343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
582 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
344 | abort (); |
583 | abort (); |
… | |
… | |
350 | #define ev_malloc(size) ev_realloc (0, (size)) |
589 | #define ev_malloc(size) ev_realloc (0, (size)) |
351 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
590 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
352 | |
591 | |
353 | /*****************************************************************************/ |
592 | /*****************************************************************************/ |
354 | |
593 | |
|
|
594 | /* set in reify when reification needed */ |
|
|
595 | #define EV_ANFD_REIFY 1 |
|
|
596 | |
|
|
597 | /* file descriptor info structure */ |
355 | typedef struct |
598 | typedef struct |
356 | { |
599 | { |
357 | WL head; |
600 | WL head; |
358 | unsigned char events; |
601 | unsigned char events; /* the events watched for */ |
|
|
602 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
603 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
359 | unsigned char reify; |
604 | unsigned char unused; |
|
|
605 | #if EV_USE_EPOLL |
|
|
606 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
607 | #endif |
360 | #if EV_SELECT_IS_WINSOCKET |
608 | #if EV_SELECT_IS_WINSOCKET |
361 | SOCKET handle; |
609 | SOCKET handle; |
362 | #endif |
610 | #endif |
363 | } ANFD; |
611 | } ANFD; |
364 | |
612 | |
|
|
613 | /* stores the pending event set for a given watcher */ |
365 | typedef struct |
614 | typedef struct |
366 | { |
615 | { |
367 | W w; |
616 | W w; |
368 | int events; |
617 | int events; /* the pending event set for the given watcher */ |
369 | } ANPENDING; |
618 | } ANPENDING; |
370 | |
619 | |
371 | #if EV_USE_INOTIFY |
620 | #if EV_USE_INOTIFY |
|
|
621 | /* hash table entry per inotify-id */ |
372 | typedef struct |
622 | typedef struct |
373 | { |
623 | { |
374 | WL head; |
624 | WL head; |
375 | } ANFS; |
625 | } ANFS; |
|
|
626 | #endif |
|
|
627 | |
|
|
628 | /* Heap Entry */ |
|
|
629 | #if EV_HEAP_CACHE_AT |
|
|
630 | /* a heap element */ |
|
|
631 | typedef struct { |
|
|
632 | ev_tstamp at; |
|
|
633 | WT w; |
|
|
634 | } ANHE; |
|
|
635 | |
|
|
636 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
637 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
638 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
639 | #else |
|
|
640 | /* a heap element */ |
|
|
641 | typedef WT ANHE; |
|
|
642 | |
|
|
643 | #define ANHE_w(he) (he) |
|
|
644 | #define ANHE_at(he) (he)->at |
|
|
645 | #define ANHE_at_cache(he) |
376 | #endif |
646 | #endif |
377 | |
647 | |
378 | #if EV_MULTIPLICITY |
648 | #if EV_MULTIPLICITY |
379 | |
649 | |
380 | struct ev_loop |
650 | struct ev_loop |
… | |
… | |
399 | |
669 | |
400 | static int ev_default_loop_ptr; |
670 | static int ev_default_loop_ptr; |
401 | |
671 | |
402 | #endif |
672 | #endif |
403 | |
673 | |
|
|
674 | #if EV_MINIMAL < 2 |
|
|
675 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
676 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
677 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
678 | #else |
|
|
679 | # define EV_RELEASE_CB (void)0 |
|
|
680 | # define EV_ACQUIRE_CB (void)0 |
|
|
681 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | #define EVUNLOOP_RECURSE 0x80 |
|
|
685 | |
404 | /*****************************************************************************/ |
686 | /*****************************************************************************/ |
405 | |
687 | |
|
|
688 | #ifndef EV_HAVE_EV_TIME |
406 | ev_tstamp |
689 | ev_tstamp |
407 | ev_time (void) |
690 | ev_time (void) |
408 | { |
691 | { |
409 | #if EV_USE_REALTIME |
692 | #if EV_USE_REALTIME |
|
|
693 | if (expect_true (have_realtime)) |
|
|
694 | { |
410 | struct timespec ts; |
695 | struct timespec ts; |
411 | clock_gettime (CLOCK_REALTIME, &ts); |
696 | clock_gettime (CLOCK_REALTIME, &ts); |
412 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
697 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
413 | #else |
698 | } |
|
|
699 | #endif |
|
|
700 | |
414 | struct timeval tv; |
701 | struct timeval tv; |
415 | gettimeofday (&tv, 0); |
702 | gettimeofday (&tv, 0); |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
703 | return tv.tv_sec + tv.tv_usec * 1e-6; |
417 | #endif |
|
|
418 | } |
704 | } |
|
|
705 | #endif |
419 | |
706 | |
420 | ev_tstamp inline_size |
707 | inline_size ev_tstamp |
421 | get_clock (void) |
708 | get_clock (void) |
422 | { |
709 | { |
423 | #if EV_USE_MONOTONIC |
710 | #if EV_USE_MONOTONIC |
424 | if (expect_true (have_monotonic)) |
711 | if (expect_true (have_monotonic)) |
425 | { |
712 | { |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
738 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
739 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
740 | |
454 | nanosleep (&ts, 0); |
741 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
742 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
743 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
744 | #else |
458 | struct timeval tv; |
745 | struct timeval tv; |
459 | |
746 | |
460 | tv.tv_sec = (time_t)delay; |
747 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
748 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
462 | |
749 | |
|
|
750 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
751 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
752 | /* by older ones */ |
463 | select (0, 0, 0, 0, &tv); |
753 | select (0, 0, 0, 0, &tv); |
464 | #endif |
754 | #endif |
465 | } |
755 | } |
466 | } |
756 | } |
467 | |
757 | |
468 | /*****************************************************************************/ |
758 | /*****************************************************************************/ |
469 | |
759 | |
470 | int inline_size |
760 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
761 | |
|
|
762 | /* find a suitable new size for the given array, */ |
|
|
763 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
764 | inline_size int |
471 | array_nextsize (int elem, int cur, int cnt) |
765 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
766 | { |
473 | int ncur = cur + 1; |
767 | int ncur = cur + 1; |
474 | |
768 | |
475 | do |
769 | do |
476 | ncur <<= 1; |
770 | ncur <<= 1; |
477 | while (cnt > ncur); |
771 | while (cnt > ncur); |
478 | |
772 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
773 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
774 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
775 | { |
482 | ncur *= elem; |
776 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
777 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
778 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
779 | ncur /= elem; |
486 | } |
780 | } |
487 | |
781 | |
488 | return ncur; |
782 | return ncur; |
… | |
… | |
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
786 | array_realloc (int elem, void *base, int *cur, int cnt) |
493 | { |
787 | { |
494 | *cur = array_nextsize (elem, *cur, cnt); |
788 | *cur = array_nextsize (elem, *cur, cnt); |
495 | return ev_realloc (base, elem * *cur); |
789 | return ev_realloc (base, elem * *cur); |
496 | } |
790 | } |
|
|
791 | |
|
|
792 | #define array_init_zero(base,count) \ |
|
|
793 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
497 | |
794 | |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
795 | #define array_needsize(type,base,cur,cnt,init) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
796 | if (expect_false ((cnt) > (cur))) \ |
500 | { \ |
797 | { \ |
501 | int ocur_ = (cur); \ |
798 | int ocur_ = (cur); \ |
… | |
… | |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
810 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
514 | } |
811 | } |
515 | #endif |
812 | #endif |
516 | |
813 | |
517 | #define array_free(stem, idx) \ |
814 | #define array_free(stem, idx) \ |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
815 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
519 | |
816 | |
520 | /*****************************************************************************/ |
817 | /*****************************************************************************/ |
|
|
818 | |
|
|
819 | /* dummy callback for pending events */ |
|
|
820 | static void noinline |
|
|
821 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
822 | { |
|
|
823 | } |
521 | |
824 | |
522 | void noinline |
825 | void noinline |
523 | ev_feed_event (EV_P_ void *w, int revents) |
826 | ev_feed_event (EV_P_ void *w, int revents) |
524 | { |
827 | { |
525 | W w_ = (W)w; |
828 | W w_ = (W)w; |
… | |
… | |
534 | pendings [pri][w_->pending - 1].w = w_; |
837 | pendings [pri][w_->pending - 1].w = w_; |
535 | pendings [pri][w_->pending - 1].events = revents; |
838 | pendings [pri][w_->pending - 1].events = revents; |
536 | } |
839 | } |
537 | } |
840 | } |
538 | |
841 | |
539 | void inline_speed |
842 | inline_speed void |
|
|
843 | feed_reverse (EV_P_ W w) |
|
|
844 | { |
|
|
845 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
846 | rfeeds [rfeedcnt++] = w; |
|
|
847 | } |
|
|
848 | |
|
|
849 | inline_size void |
|
|
850 | feed_reverse_done (EV_P_ int revents) |
|
|
851 | { |
|
|
852 | do |
|
|
853 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
854 | while (rfeedcnt); |
|
|
855 | } |
|
|
856 | |
|
|
857 | inline_speed void |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
858 | queue_events (EV_P_ W *events, int eventcnt, int type) |
541 | { |
859 | { |
542 | int i; |
860 | int i; |
543 | |
861 | |
544 | for (i = 0; i < eventcnt; ++i) |
862 | for (i = 0; i < eventcnt; ++i) |
545 | ev_feed_event (EV_A_ events [i], type); |
863 | ev_feed_event (EV_A_ events [i], type); |
546 | } |
864 | } |
547 | |
865 | |
548 | /*****************************************************************************/ |
866 | /*****************************************************************************/ |
549 | |
867 | |
550 | void inline_size |
868 | inline_speed void |
551 | anfds_init (ANFD *base, int count) |
|
|
552 | { |
|
|
553 | while (count--) |
|
|
554 | { |
|
|
555 | base->head = 0; |
|
|
556 | base->events = EV_NONE; |
|
|
557 | base->reify = 0; |
|
|
558 | |
|
|
559 | ++base; |
|
|
560 | } |
|
|
561 | } |
|
|
562 | |
|
|
563 | void inline_speed |
|
|
564 | fd_event (EV_P_ int fd, int revents) |
869 | fd_event_nc (EV_P_ int fd, int revents) |
565 | { |
870 | { |
566 | ANFD *anfd = anfds + fd; |
871 | ANFD *anfd = anfds + fd; |
567 | ev_io *w; |
872 | ev_io *w; |
568 | |
873 | |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
874 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
573 | if (ev) |
878 | if (ev) |
574 | ev_feed_event (EV_A_ (W)w, ev); |
879 | ev_feed_event (EV_A_ (W)w, ev); |
575 | } |
880 | } |
576 | } |
881 | } |
577 | |
882 | |
|
|
883 | /* do not submit kernel events for fds that have reify set */ |
|
|
884 | /* because that means they changed while we were polling for new events */ |
|
|
885 | inline_speed void |
|
|
886 | fd_event (EV_P_ int fd, int revents) |
|
|
887 | { |
|
|
888 | ANFD *anfd = anfds + fd; |
|
|
889 | |
|
|
890 | if (expect_true (!anfd->reify)) |
|
|
891 | fd_event_nc (EV_A_ fd, revents); |
|
|
892 | } |
|
|
893 | |
578 | void |
894 | void |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
895 | ev_feed_fd_event (EV_P_ int fd, int revents) |
580 | { |
896 | { |
581 | if (fd >= 0 && fd < anfdmax) |
897 | if (fd >= 0 && fd < anfdmax) |
582 | fd_event (EV_A_ fd, revents); |
898 | fd_event_nc (EV_A_ fd, revents); |
583 | } |
899 | } |
584 | |
900 | |
585 | void inline_size |
901 | /* make sure the external fd watch events are in-sync */ |
|
|
902 | /* with the kernel/libev internal state */ |
|
|
903 | inline_size void |
586 | fd_reify (EV_P) |
904 | fd_reify (EV_P) |
587 | { |
905 | { |
588 | int i; |
906 | int i; |
589 | |
907 | |
590 | for (i = 0; i < fdchangecnt; ++i) |
908 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
599 | events |= (unsigned char)w->events; |
917 | events |= (unsigned char)w->events; |
600 | |
918 | |
601 | #if EV_SELECT_IS_WINSOCKET |
919 | #if EV_SELECT_IS_WINSOCKET |
602 | if (events) |
920 | if (events) |
603 | { |
921 | { |
604 | unsigned long argp; |
922 | unsigned long arg; |
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
923 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
607 | #else |
|
|
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
|
|
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
924 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
611 | } |
925 | } |
612 | #endif |
926 | #endif |
613 | |
927 | |
614 | { |
928 | { |
615 | unsigned char o_events = anfd->events; |
929 | unsigned char o_events = anfd->events; |
616 | unsigned char o_reify = anfd->reify; |
930 | unsigned char o_reify = anfd->reify; |
617 | |
931 | |
618 | anfd->reify = 0; |
932 | anfd->reify = 0; |
619 | anfd->events = events; |
933 | anfd->events = events; |
620 | |
934 | |
621 | if (o_events != events || o_reify & EV_IOFDSET) |
935 | if (o_events != events || o_reify & EV__IOFDSET) |
622 | backend_modify (EV_A_ fd, o_events, events); |
936 | backend_modify (EV_A_ fd, o_events, events); |
623 | } |
937 | } |
624 | } |
938 | } |
625 | |
939 | |
626 | fdchangecnt = 0; |
940 | fdchangecnt = 0; |
627 | } |
941 | } |
628 | |
942 | |
629 | void inline_size |
943 | /* something about the given fd changed */ |
|
|
944 | inline_size void |
630 | fd_change (EV_P_ int fd, int flags) |
945 | fd_change (EV_P_ int fd, int flags) |
631 | { |
946 | { |
632 | unsigned char reify = anfds [fd].reify; |
947 | unsigned char reify = anfds [fd].reify; |
633 | anfds [fd].reify |= flags; |
948 | anfds [fd].reify |= flags; |
634 | |
949 | |
… | |
… | |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
953 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
639 | fdchanges [fdchangecnt - 1] = fd; |
954 | fdchanges [fdchangecnt - 1] = fd; |
640 | } |
955 | } |
641 | } |
956 | } |
642 | |
957 | |
643 | void inline_speed |
958 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
959 | inline_speed void |
644 | fd_kill (EV_P_ int fd) |
960 | fd_kill (EV_P_ int fd) |
645 | { |
961 | { |
646 | ev_io *w; |
962 | ev_io *w; |
647 | |
963 | |
648 | while ((w = (ev_io *)anfds [fd].head)) |
964 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
650 | ev_io_stop (EV_A_ w); |
966 | ev_io_stop (EV_A_ w); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
967 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
652 | } |
968 | } |
653 | } |
969 | } |
654 | |
970 | |
655 | int inline_size |
971 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
972 | inline_size int |
656 | fd_valid (int fd) |
973 | fd_valid (int fd) |
657 | { |
974 | { |
658 | #ifdef _WIN32 |
975 | #ifdef _WIN32 |
659 | return _get_osfhandle (fd) != -1; |
976 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
660 | #else |
977 | #else |
661 | return fcntl (fd, F_GETFD) != -1; |
978 | return fcntl (fd, F_GETFD) != -1; |
662 | #endif |
979 | #endif |
663 | } |
980 | } |
664 | |
981 | |
… | |
… | |
668 | { |
985 | { |
669 | int fd; |
986 | int fd; |
670 | |
987 | |
671 | for (fd = 0; fd < anfdmax; ++fd) |
988 | for (fd = 0; fd < anfdmax; ++fd) |
672 | if (anfds [fd].events) |
989 | if (anfds [fd].events) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
990 | if (!fd_valid (fd) && errno == EBADF) |
674 | fd_kill (EV_A_ fd); |
991 | fd_kill (EV_A_ fd); |
675 | } |
992 | } |
676 | |
993 | |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
994 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
678 | static void noinline |
995 | static void noinline |
… | |
… | |
682 | |
999 | |
683 | for (fd = anfdmax; fd--; ) |
1000 | for (fd = anfdmax; fd--; ) |
684 | if (anfds [fd].events) |
1001 | if (anfds [fd].events) |
685 | { |
1002 | { |
686 | fd_kill (EV_A_ fd); |
1003 | fd_kill (EV_A_ fd); |
687 | return; |
1004 | break; |
688 | } |
1005 | } |
689 | } |
1006 | } |
690 | |
1007 | |
691 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1008 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
692 | static void noinline |
1009 | static void noinline |
… | |
… | |
696 | |
1013 | |
697 | for (fd = 0; fd < anfdmax; ++fd) |
1014 | for (fd = 0; fd < anfdmax; ++fd) |
698 | if (anfds [fd].events) |
1015 | if (anfds [fd].events) |
699 | { |
1016 | { |
700 | anfds [fd].events = 0; |
1017 | anfds [fd].events = 0; |
|
|
1018 | anfds [fd].emask = 0; |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1019 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
702 | } |
1020 | } |
703 | } |
1021 | } |
704 | |
1022 | |
705 | /*****************************************************************************/ |
1023 | /*****************************************************************************/ |
706 | |
1024 | |
707 | void inline_speed |
1025 | /* |
708 | upheap (WT *heap, int k) |
1026 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
709 | { |
1027 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
710 | WT w = heap [k]; |
1028 | * the branching factor of the d-tree. |
|
|
1029 | */ |
711 | |
1030 | |
712 | while (k) |
1031 | /* |
713 | { |
1032 | * at the moment we allow libev the luxury of two heaps, |
714 | int p = (k - 1) >> 1; |
1033 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1034 | * which is more cache-efficient. |
|
|
1035 | * the difference is about 5% with 50000+ watchers. |
|
|
1036 | */ |
|
|
1037 | #if EV_USE_4HEAP |
715 | |
1038 | |
716 | if (heap [p]->at <= w->at) |
1039 | #define DHEAP 4 |
|
|
1040 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1041 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1042 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1043 | |
|
|
1044 | /* away from the root */ |
|
|
1045 | inline_speed void |
|
|
1046 | downheap (ANHE *heap, int N, int k) |
|
|
1047 | { |
|
|
1048 | ANHE he = heap [k]; |
|
|
1049 | ANHE *E = heap + N + HEAP0; |
|
|
1050 | |
|
|
1051 | for (;;) |
|
|
1052 | { |
|
|
1053 | ev_tstamp minat; |
|
|
1054 | ANHE *minpos; |
|
|
1055 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1056 | |
|
|
1057 | /* find minimum child */ |
|
|
1058 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1059 | { |
|
|
1060 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1061 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1062 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1063 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1064 | } |
|
|
1065 | else if (pos < E) |
|
|
1066 | { |
|
|
1067 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1068 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1069 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1070 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1071 | } |
|
|
1072 | else |
717 | break; |
1073 | break; |
718 | |
1074 | |
|
|
1075 | if (ANHE_at (he) <= minat) |
|
|
1076 | break; |
|
|
1077 | |
|
|
1078 | heap [k] = *minpos; |
|
|
1079 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1080 | |
|
|
1081 | k = minpos - heap; |
|
|
1082 | } |
|
|
1083 | |
|
|
1084 | heap [k] = he; |
|
|
1085 | ev_active (ANHE_w (he)) = k; |
|
|
1086 | } |
|
|
1087 | |
|
|
1088 | #else /* 4HEAP */ |
|
|
1089 | |
|
|
1090 | #define HEAP0 1 |
|
|
1091 | #define HPARENT(k) ((k) >> 1) |
|
|
1092 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1093 | |
|
|
1094 | /* away from the root */ |
|
|
1095 | inline_speed void |
|
|
1096 | downheap (ANHE *heap, int N, int k) |
|
|
1097 | { |
|
|
1098 | ANHE he = heap [k]; |
|
|
1099 | |
|
|
1100 | for (;;) |
|
|
1101 | { |
|
|
1102 | int c = k << 1; |
|
|
1103 | |
|
|
1104 | if (c >= N + HEAP0) |
|
|
1105 | break; |
|
|
1106 | |
|
|
1107 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1108 | ? 1 : 0; |
|
|
1109 | |
|
|
1110 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1111 | break; |
|
|
1112 | |
|
|
1113 | heap [k] = heap [c]; |
|
|
1114 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1115 | |
|
|
1116 | k = c; |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | heap [k] = he; |
|
|
1120 | ev_active (ANHE_w (he)) = k; |
|
|
1121 | } |
|
|
1122 | #endif |
|
|
1123 | |
|
|
1124 | /* towards the root */ |
|
|
1125 | inline_speed void |
|
|
1126 | upheap (ANHE *heap, int k) |
|
|
1127 | { |
|
|
1128 | ANHE he = heap [k]; |
|
|
1129 | |
|
|
1130 | for (;;) |
|
|
1131 | { |
|
|
1132 | int p = HPARENT (k); |
|
|
1133 | |
|
|
1134 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1135 | break; |
|
|
1136 | |
719 | heap [k] = heap [p]; |
1137 | heap [k] = heap [p]; |
720 | ((W)heap [k])->active = k + 1; |
1138 | ev_active (ANHE_w (heap [k])) = k; |
721 | k = p; |
1139 | k = p; |
722 | } |
1140 | } |
723 | |
1141 | |
724 | heap [k] = w; |
1142 | heap [k] = he; |
725 | ((W)heap [k])->active = k + 1; |
1143 | ev_active (ANHE_w (he)) = k; |
726 | } |
1144 | } |
727 | |
1145 | |
728 | void inline_speed |
1146 | /* move an element suitably so it is in a correct place */ |
729 | downheap (WT *heap, int N, int k) |
1147 | inline_size void |
730 | { |
|
|
731 | WT w = heap [k]; |
|
|
732 | |
|
|
733 | for (;;) |
|
|
734 | { |
|
|
735 | int c = (k << 1) + 1; |
|
|
736 | |
|
|
737 | if (c >= N) |
|
|
738 | break; |
|
|
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
|
|
746 | heap [k] = heap [c]; |
|
|
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
|
|
749 | k = c; |
|
|
750 | } |
|
|
751 | |
|
|
752 | heap [k] = w; |
|
|
753 | ((W)heap [k])->active = k + 1; |
|
|
754 | } |
|
|
755 | |
|
|
756 | void inline_size |
|
|
757 | adjustheap (WT *heap, int N, int k) |
1148 | adjustheap (ANHE *heap, int N, int k) |
758 | { |
1149 | { |
|
|
1150 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
759 | upheap (heap, k); |
1151 | upheap (heap, k); |
|
|
1152 | else |
760 | downheap (heap, N, k); |
1153 | downheap (heap, N, k); |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1157 | inline_size void |
|
|
1158 | reheap (ANHE *heap, int N) |
|
|
1159 | { |
|
|
1160 | int i; |
|
|
1161 | |
|
|
1162 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1163 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1164 | for (i = 0; i < N; ++i) |
|
|
1165 | upheap (heap, i + HEAP0); |
761 | } |
1166 | } |
762 | |
1167 | |
763 | /*****************************************************************************/ |
1168 | /*****************************************************************************/ |
764 | |
1169 | |
|
|
1170 | /* associate signal watchers to a signal signal */ |
765 | typedef struct |
1171 | typedef struct |
766 | { |
1172 | { |
|
|
1173 | EV_ATOMIC_T pending; |
|
|
1174 | #if EV_MULTIPLICITY |
|
|
1175 | EV_P; |
|
|
1176 | #endif |
767 | WL head; |
1177 | WL head; |
768 | EV_ATOMIC_T gotsig; |
|
|
769 | } ANSIG; |
1178 | } ANSIG; |
770 | |
1179 | |
771 | static ANSIG *signals; |
1180 | static ANSIG signals [EV_NSIG - 1]; |
772 | static int signalmax; |
|
|
773 | |
|
|
774 | static EV_ATOMIC_T gotsig; |
|
|
775 | |
|
|
776 | void inline_size |
|
|
777 | signals_init (ANSIG *base, int count) |
|
|
778 | { |
|
|
779 | while (count--) |
|
|
780 | { |
|
|
781 | base->head = 0; |
|
|
782 | base->gotsig = 0; |
|
|
783 | |
|
|
784 | ++base; |
|
|
785 | } |
|
|
786 | } |
|
|
787 | |
1181 | |
788 | /*****************************************************************************/ |
1182 | /*****************************************************************************/ |
789 | |
1183 | |
790 | void inline_speed |
1184 | /* used to prepare libev internal fd's */ |
|
|
1185 | /* this is not fork-safe */ |
|
|
1186 | inline_speed void |
791 | fd_intern (int fd) |
1187 | fd_intern (int fd) |
792 | { |
1188 | { |
793 | #ifdef _WIN32 |
1189 | #ifdef _WIN32 |
794 | int arg = 1; |
1190 | unsigned long arg = 1; |
795 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1191 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
796 | #else |
1192 | #else |
797 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1193 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
798 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1194 | fcntl (fd, F_SETFL, O_NONBLOCK); |
799 | #endif |
1195 | #endif |
800 | } |
1196 | } |
801 | |
1197 | |
802 | static void noinline |
1198 | static void noinline |
803 | evpipe_init (EV_P) |
1199 | evpipe_init (EV_P) |
804 | { |
1200 | { |
805 | if (!ev_is_active (&pipeev)) |
1201 | if (!ev_is_active (&pipe_w)) |
806 | { |
1202 | { |
|
|
1203 | #if EV_USE_EVENTFD |
|
|
1204 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1205 | if (evfd < 0 && errno == EINVAL) |
|
|
1206 | evfd = eventfd (0, 0); |
|
|
1207 | |
|
|
1208 | if (evfd >= 0) |
|
|
1209 | { |
|
|
1210 | evpipe [0] = -1; |
|
|
1211 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1212 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1213 | } |
|
|
1214 | else |
|
|
1215 | #endif |
|
|
1216 | { |
807 | while (pipe (evpipe)) |
1217 | while (pipe (evpipe)) |
808 | syserr ("(libev) error creating signal/async pipe"); |
1218 | ev_syserr ("(libev) error creating signal/async pipe"); |
809 | |
1219 | |
810 | fd_intern (evpipe [0]); |
1220 | fd_intern (evpipe [0]); |
811 | fd_intern (evpipe [1]); |
1221 | fd_intern (evpipe [1]); |
812 | |
|
|
813 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1222 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1223 | } |
|
|
1224 | |
814 | ev_io_start (EV_A_ &pipeev); |
1225 | ev_io_start (EV_A_ &pipe_w); |
815 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1226 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
816 | } |
|
|
817 | } |
|
|
818 | |
|
|
819 | void inline_size |
|
|
820 | evpipe_write (EV_P_ int sig, int async) |
|
|
821 | { |
|
|
822 | if (!(gotasync || gotsig)) |
|
|
823 | { |
1227 | } |
824 | int old_errno = errno; |
1228 | } |
825 | |
1229 | |
826 | if (sig) gotsig = 1; |
1230 | inline_size void |
827 | if (async) gotasync = 1; |
1231 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1232 | { |
|
|
1233 | if (!*flag) |
|
|
1234 | { |
|
|
1235 | int old_errno = errno; /* save errno because write might clobber it */ |
828 | |
1236 | |
|
|
1237 | *flag = 1; |
|
|
1238 | |
|
|
1239 | #if EV_USE_EVENTFD |
|
|
1240 | if (evfd >= 0) |
|
|
1241 | { |
|
|
1242 | uint64_t counter = 1; |
|
|
1243 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1244 | } |
|
|
1245 | else |
|
|
1246 | #endif |
829 | write (evpipe [1], &old_errno, 1); |
1247 | write (evpipe [1], &old_errno, 1); |
|
|
1248 | |
830 | errno = old_errno; |
1249 | errno = old_errno; |
831 | } |
1250 | } |
832 | } |
1251 | } |
833 | |
1252 | |
|
|
1253 | /* called whenever the libev signal pipe */ |
|
|
1254 | /* got some events (signal, async) */ |
834 | static void |
1255 | static void |
835 | pipecb (EV_P_ ev_io *iow, int revents) |
1256 | pipecb (EV_P_ ev_io *iow, int revents) |
836 | { |
1257 | { |
|
|
1258 | int i; |
|
|
1259 | |
|
|
1260 | #if EV_USE_EVENTFD |
|
|
1261 | if (evfd >= 0) |
837 | { |
1262 | { |
838 | int dummy; |
1263 | uint64_t counter; |
|
|
1264 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1265 | } |
|
|
1266 | else |
|
|
1267 | #endif |
|
|
1268 | { |
|
|
1269 | char dummy; |
839 | read (evpipe [0], &dummy, 1); |
1270 | read (evpipe [0], &dummy, 1); |
840 | } |
1271 | } |
841 | |
1272 | |
842 | if (gotsig) |
1273 | if (sig_pending) |
843 | { |
1274 | { |
844 | int signum; |
1275 | sig_pending = 0; |
845 | gotsig = 0; |
|
|
846 | |
1276 | |
847 | for (signum = signalmax; signum--; ) |
1277 | for (i = EV_NSIG - 1; i--; ) |
848 | if (signals [signum].gotsig) |
1278 | if (expect_false (signals [i].pending)) |
849 | ev_feed_signal_event (EV_A_ signum + 1); |
1279 | ev_feed_signal_event (EV_A_ i + 1); |
850 | } |
|
|
851 | |
|
|
852 | if (gotasync) |
|
|
853 | { |
1280 | } |
854 | int i; |
1281 | |
855 | gotasync = 0; |
1282 | #if EV_ASYNC_ENABLE |
|
|
1283 | if (async_pending) |
|
|
1284 | { |
|
|
1285 | async_pending = 0; |
856 | |
1286 | |
857 | for (i = asynccnt; i--; ) |
1287 | for (i = asynccnt; i--; ) |
858 | if (asyncs [i]->sent) |
1288 | if (asyncs [i]->sent) |
859 | { |
1289 | { |
860 | asyncs [i]->sent = 0; |
1290 | asyncs [i]->sent = 0; |
861 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1291 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
862 | } |
1292 | } |
863 | } |
1293 | } |
|
|
1294 | #endif |
864 | } |
1295 | } |
865 | |
1296 | |
866 | /*****************************************************************************/ |
1297 | /*****************************************************************************/ |
867 | |
1298 | |
868 | static void |
1299 | static void |
869 | sighandler (int signum) |
1300 | ev_sighandler (int signum) |
870 | { |
1301 | { |
871 | #if EV_MULTIPLICITY |
1302 | #if EV_MULTIPLICITY |
872 | struct ev_loop *loop = &default_loop_struct; |
1303 | EV_P = signals [signum - 1].loop; |
873 | #endif |
1304 | #endif |
874 | |
1305 | |
875 | #if _WIN32 |
1306 | #ifdef _WIN32 |
876 | signal (signum, sighandler); |
1307 | signal (signum, ev_sighandler); |
877 | #endif |
1308 | #endif |
878 | |
1309 | |
879 | signals [signum - 1].gotsig = 1; |
1310 | signals [signum - 1].pending = 1; |
880 | evpipe_write (EV_A_ 1, 0); |
1311 | evpipe_write (EV_A_ &sig_pending); |
881 | } |
1312 | } |
882 | |
1313 | |
883 | void noinline |
1314 | void noinline |
884 | ev_feed_signal_event (EV_P_ int signum) |
1315 | ev_feed_signal_event (EV_P_ int signum) |
885 | { |
1316 | { |
886 | WL w; |
1317 | WL w; |
887 | |
1318 | |
|
|
1319 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1320 | return; |
|
|
1321 | |
|
|
1322 | --signum; |
|
|
1323 | |
888 | #if EV_MULTIPLICITY |
1324 | #if EV_MULTIPLICITY |
889 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1325 | /* it is permissible to try to feed a signal to the wrong loop */ |
890 | #endif |
1326 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
891 | |
1327 | |
892 | --signum; |
1328 | if (expect_false (signals [signum].loop != EV_A)) |
893 | |
|
|
894 | if (signum < 0 || signum >= signalmax) |
|
|
895 | return; |
1329 | return; |
|
|
1330 | #endif |
896 | |
1331 | |
897 | signals [signum].gotsig = 0; |
1332 | signals [signum].pending = 0; |
898 | |
1333 | |
899 | for (w = signals [signum].head; w; w = w->next) |
1334 | for (w = signals [signum].head; w; w = w->next) |
900 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1335 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
901 | } |
1336 | } |
902 | |
1337 | |
|
|
1338 | #if EV_USE_SIGNALFD |
|
|
1339 | static void |
|
|
1340 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1341 | { |
|
|
1342 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1343 | |
|
|
1344 | for (;;) |
|
|
1345 | { |
|
|
1346 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1347 | |
|
|
1348 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1349 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1350 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1351 | |
|
|
1352 | if (res < (ssize_t)sizeof (si)) |
|
|
1353 | break; |
|
|
1354 | } |
|
|
1355 | } |
|
|
1356 | #endif |
|
|
1357 | |
903 | /*****************************************************************************/ |
1358 | /*****************************************************************************/ |
904 | |
1359 | |
905 | static WL childs [EV_PID_HASHSIZE]; |
1360 | static WL childs [EV_PID_HASHSIZE]; |
906 | |
1361 | |
907 | #ifndef _WIN32 |
1362 | #ifndef _WIN32 |
… | |
… | |
910 | |
1365 | |
911 | #ifndef WIFCONTINUED |
1366 | #ifndef WIFCONTINUED |
912 | # define WIFCONTINUED(status) 0 |
1367 | # define WIFCONTINUED(status) 0 |
913 | #endif |
1368 | #endif |
914 | |
1369 | |
915 | void inline_speed |
1370 | /* handle a single child status event */ |
|
|
1371 | inline_speed void |
916 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1372 | child_reap (EV_P_ int chain, int pid, int status) |
917 | { |
1373 | { |
918 | ev_child *w; |
1374 | ev_child *w; |
919 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1375 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
920 | |
1376 | |
921 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1377 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
922 | { |
1378 | { |
923 | if ((w->pid == pid || !w->pid) |
1379 | if ((w->pid == pid || !w->pid) |
924 | && (!traced || (w->flags & 1))) |
1380 | && (!traced || (w->flags & 1))) |
925 | { |
1381 | { |
926 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1382 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
927 | w->rpid = pid; |
1383 | w->rpid = pid; |
928 | w->rstatus = status; |
1384 | w->rstatus = status; |
929 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1385 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
930 | } |
1386 | } |
931 | } |
1387 | } |
… | |
… | |
933 | |
1389 | |
934 | #ifndef WCONTINUED |
1390 | #ifndef WCONTINUED |
935 | # define WCONTINUED 0 |
1391 | # define WCONTINUED 0 |
936 | #endif |
1392 | #endif |
937 | |
1393 | |
|
|
1394 | /* called on sigchld etc., calls waitpid */ |
938 | static void |
1395 | static void |
939 | childcb (EV_P_ ev_signal *sw, int revents) |
1396 | childcb (EV_P_ ev_signal *sw, int revents) |
940 | { |
1397 | { |
941 | int pid, status; |
1398 | int pid, status; |
942 | |
1399 | |
… | |
… | |
945 | if (!WCONTINUED |
1402 | if (!WCONTINUED |
946 | || errno != EINVAL |
1403 | || errno != EINVAL |
947 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1404 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
948 | return; |
1405 | return; |
949 | |
1406 | |
950 | /* make sure we are called again until all childs have been reaped */ |
1407 | /* make sure we are called again until all children have been reaped */ |
951 | /* we need to do it this way so that the callback gets called before we continue */ |
1408 | /* we need to do it this way so that the callback gets called before we continue */ |
952 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1409 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
953 | |
1410 | |
954 | child_reap (EV_A_ sw, pid, pid, status); |
1411 | child_reap (EV_A_ pid, pid, status); |
955 | if (EV_PID_HASHSIZE > 1) |
1412 | if (EV_PID_HASHSIZE > 1) |
956 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1413 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
957 | } |
1414 | } |
958 | |
1415 | |
959 | #endif |
1416 | #endif |
960 | |
1417 | |
961 | /*****************************************************************************/ |
1418 | /*****************************************************************************/ |
… | |
… | |
1023 | /* kqueue is borked on everything but netbsd apparently */ |
1480 | /* kqueue is borked on everything but netbsd apparently */ |
1024 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1481 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1025 | flags &= ~EVBACKEND_KQUEUE; |
1482 | flags &= ~EVBACKEND_KQUEUE; |
1026 | #endif |
1483 | #endif |
1027 | #ifdef __APPLE__ |
1484 | #ifdef __APPLE__ |
1028 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1485 | /* only select works correctly on that "unix-certified" platform */ |
1029 | flags &= ~EVBACKEND_POLL; |
1486 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1487 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
1030 | #endif |
1488 | #endif |
1031 | |
1489 | |
1032 | return flags; |
1490 | return flags; |
1033 | } |
1491 | } |
1034 | |
1492 | |
… | |
… | |
1048 | ev_backend (EV_P) |
1506 | ev_backend (EV_P) |
1049 | { |
1507 | { |
1050 | return backend; |
1508 | return backend; |
1051 | } |
1509 | } |
1052 | |
1510 | |
|
|
1511 | #if EV_MINIMAL < 2 |
1053 | unsigned int |
1512 | unsigned int |
1054 | ev_loop_count (EV_P) |
1513 | ev_loop_count (EV_P) |
1055 | { |
1514 | { |
1056 | return loop_count; |
1515 | return loop_count; |
1057 | } |
1516 | } |
1058 | |
1517 | |
|
|
1518 | unsigned int |
|
|
1519 | ev_loop_depth (EV_P) |
|
|
1520 | { |
|
|
1521 | return loop_depth; |
|
|
1522 | } |
|
|
1523 | |
1059 | void |
1524 | void |
1060 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1525 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1061 | { |
1526 | { |
1062 | io_blocktime = interval; |
1527 | io_blocktime = interval; |
1063 | } |
1528 | } |
… | |
… | |
1066 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1531 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1067 | { |
1532 | { |
1068 | timeout_blocktime = interval; |
1533 | timeout_blocktime = interval; |
1069 | } |
1534 | } |
1070 | |
1535 | |
|
|
1536 | void |
|
|
1537 | ev_set_userdata (EV_P_ void *data) |
|
|
1538 | { |
|
|
1539 | userdata = data; |
|
|
1540 | } |
|
|
1541 | |
|
|
1542 | void * |
|
|
1543 | ev_userdata (EV_P) |
|
|
1544 | { |
|
|
1545 | return userdata; |
|
|
1546 | } |
|
|
1547 | |
|
|
1548 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1549 | { |
|
|
1550 | invoke_cb = invoke_pending_cb; |
|
|
1551 | } |
|
|
1552 | |
|
|
1553 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1554 | { |
|
|
1555 | release_cb = release; |
|
|
1556 | acquire_cb = acquire; |
|
|
1557 | } |
|
|
1558 | #endif |
|
|
1559 | |
|
|
1560 | /* initialise a loop structure, must be zero-initialised */ |
1071 | static void noinline |
1561 | static void noinline |
1072 | loop_init (EV_P_ unsigned int flags) |
1562 | loop_init (EV_P_ unsigned int flags) |
1073 | { |
1563 | { |
1074 | if (!backend) |
1564 | if (!backend) |
1075 | { |
1565 | { |
|
|
1566 | #if EV_USE_REALTIME |
|
|
1567 | if (!have_realtime) |
|
|
1568 | { |
|
|
1569 | struct timespec ts; |
|
|
1570 | |
|
|
1571 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1572 | have_realtime = 1; |
|
|
1573 | } |
|
|
1574 | #endif |
|
|
1575 | |
1076 | #if EV_USE_MONOTONIC |
1576 | #if EV_USE_MONOTONIC |
|
|
1577 | if (!have_monotonic) |
1077 | { |
1578 | { |
1078 | struct timespec ts; |
1579 | struct timespec ts; |
|
|
1580 | |
1079 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1581 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1080 | have_monotonic = 1; |
1582 | have_monotonic = 1; |
1081 | } |
1583 | } |
1082 | #endif |
1584 | #endif |
1083 | |
|
|
1084 | ev_rt_now = ev_time (); |
|
|
1085 | mn_now = get_clock (); |
|
|
1086 | now_floor = mn_now; |
|
|
1087 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1088 | |
|
|
1089 | io_blocktime = 0.; |
|
|
1090 | timeout_blocktime = 0.; |
|
|
1091 | |
1585 | |
1092 | /* pid check not overridable via env */ |
1586 | /* pid check not overridable via env */ |
1093 | #ifndef _WIN32 |
1587 | #ifndef _WIN32 |
1094 | if (flags & EVFLAG_FORKCHECK) |
1588 | if (flags & EVFLAG_FORKCHECK) |
1095 | curpid = getpid (); |
1589 | curpid = getpid (); |
… | |
… | |
1098 | if (!(flags & EVFLAG_NOENV) |
1592 | if (!(flags & EVFLAG_NOENV) |
1099 | && !enable_secure () |
1593 | && !enable_secure () |
1100 | && getenv ("LIBEV_FLAGS")) |
1594 | && getenv ("LIBEV_FLAGS")) |
1101 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1595 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1102 | |
1596 | |
|
|
1597 | ev_rt_now = ev_time (); |
|
|
1598 | mn_now = get_clock (); |
|
|
1599 | now_floor = mn_now; |
|
|
1600 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1601 | #if EV_MINIMAL < 2 |
|
|
1602 | invoke_cb = ev_invoke_pending; |
|
|
1603 | #endif |
|
|
1604 | |
|
|
1605 | io_blocktime = 0.; |
|
|
1606 | timeout_blocktime = 0.; |
|
|
1607 | backend = 0; |
|
|
1608 | backend_fd = -1; |
|
|
1609 | sig_pending = 0; |
|
|
1610 | #if EV_ASYNC_ENABLE |
|
|
1611 | async_pending = 0; |
|
|
1612 | #endif |
|
|
1613 | #if EV_USE_INOTIFY |
|
|
1614 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1615 | #endif |
|
|
1616 | #if EV_USE_SIGNALFD |
|
|
1617 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1618 | #endif |
|
|
1619 | |
1103 | if (!(flags & 0x0000ffffUL)) |
1620 | if (!(flags & 0x0000ffffU)) |
1104 | flags |= ev_recommended_backends (); |
1621 | flags |= ev_recommended_backends (); |
1105 | |
|
|
1106 | backend = 0; |
|
|
1107 | backend_fd = -1; |
|
|
1108 | #if EV_USE_INOTIFY |
|
|
1109 | fs_fd = -2; |
|
|
1110 | #endif |
|
|
1111 | |
1622 | |
1112 | #if EV_USE_PORT |
1623 | #if EV_USE_PORT |
1113 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1624 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1114 | #endif |
1625 | #endif |
1115 | #if EV_USE_KQUEUE |
1626 | #if EV_USE_KQUEUE |
… | |
… | |
1123 | #endif |
1634 | #endif |
1124 | #if EV_USE_SELECT |
1635 | #if EV_USE_SELECT |
1125 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1636 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1126 | #endif |
1637 | #endif |
1127 | |
1638 | |
|
|
1639 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1640 | |
1128 | ev_init (&pipeev, pipecb); |
1641 | ev_init (&pipe_w, pipecb); |
1129 | ev_set_priority (&pipeev, EV_MAXPRI); |
1642 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1130 | } |
1643 | } |
1131 | } |
1644 | } |
1132 | |
1645 | |
|
|
1646 | /* free up a loop structure */ |
1133 | static void noinline |
1647 | static void noinline |
1134 | loop_destroy (EV_P) |
1648 | loop_destroy (EV_P) |
1135 | { |
1649 | { |
1136 | int i; |
1650 | int i; |
1137 | |
1651 | |
1138 | if (ev_is_active (&pipeev)) |
1652 | if (ev_is_active (&pipe_w)) |
1139 | { |
1653 | { |
1140 | ev_ref (EV_A); /* signal watcher */ |
1654 | /*ev_ref (EV_A);*/ |
1141 | ev_io_stop (EV_A_ &pipeev); |
1655 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1142 | |
1656 | |
1143 | close (evpipe [0]); evpipe [0] = 0; |
1657 | #if EV_USE_EVENTFD |
1144 | close (evpipe [1]); evpipe [1] = 0; |
1658 | if (evfd >= 0) |
|
|
1659 | close (evfd); |
|
|
1660 | #endif |
|
|
1661 | |
|
|
1662 | if (evpipe [0] >= 0) |
|
|
1663 | { |
|
|
1664 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1665 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1666 | } |
1145 | } |
1667 | } |
|
|
1668 | |
|
|
1669 | #if EV_USE_SIGNALFD |
|
|
1670 | if (ev_is_active (&sigfd_w)) |
|
|
1671 | close (sigfd); |
|
|
1672 | #endif |
1146 | |
1673 | |
1147 | #if EV_USE_INOTIFY |
1674 | #if EV_USE_INOTIFY |
1148 | if (fs_fd >= 0) |
1675 | if (fs_fd >= 0) |
1149 | close (fs_fd); |
1676 | close (fs_fd); |
1150 | #endif |
1677 | #endif |
… | |
… | |
1174 | #if EV_IDLE_ENABLE |
1701 | #if EV_IDLE_ENABLE |
1175 | array_free (idle, [i]); |
1702 | array_free (idle, [i]); |
1176 | #endif |
1703 | #endif |
1177 | } |
1704 | } |
1178 | |
1705 | |
1179 | ev_free (anfds); anfdmax = 0; |
1706 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1180 | |
1707 | |
1181 | /* have to use the microsoft-never-gets-it-right macro */ |
1708 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1709 | array_free (rfeed, EMPTY); |
1182 | array_free (fdchange, EMPTY); |
1710 | array_free (fdchange, EMPTY); |
1183 | array_free (timer, EMPTY); |
1711 | array_free (timer, EMPTY); |
1184 | #if EV_PERIODIC_ENABLE |
1712 | #if EV_PERIODIC_ENABLE |
1185 | array_free (periodic, EMPTY); |
1713 | array_free (periodic, EMPTY); |
1186 | #endif |
1714 | #endif |
1187 | #if EV_FORK_ENABLE |
1715 | #if EV_FORK_ENABLE |
1188 | array_free (fork, EMPTY); |
1716 | array_free (fork, EMPTY); |
1189 | #endif |
1717 | #endif |
1190 | array_free (prepare, EMPTY); |
1718 | array_free (prepare, EMPTY); |
1191 | array_free (check, EMPTY); |
1719 | array_free (check, EMPTY); |
|
|
1720 | #if EV_ASYNC_ENABLE |
|
|
1721 | array_free (async, EMPTY); |
|
|
1722 | #endif |
1192 | |
1723 | |
1193 | backend = 0; |
1724 | backend = 0; |
1194 | } |
1725 | } |
1195 | |
1726 | |
|
|
1727 | #if EV_USE_INOTIFY |
1196 | void inline_size infy_fork (EV_P); |
1728 | inline_size void infy_fork (EV_P); |
|
|
1729 | #endif |
1197 | |
1730 | |
1198 | void inline_size |
1731 | inline_size void |
1199 | loop_fork (EV_P) |
1732 | loop_fork (EV_P) |
1200 | { |
1733 | { |
1201 | #if EV_USE_PORT |
1734 | #if EV_USE_PORT |
1202 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1735 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1203 | #endif |
1736 | #endif |
… | |
… | |
1209 | #endif |
1742 | #endif |
1210 | #if EV_USE_INOTIFY |
1743 | #if EV_USE_INOTIFY |
1211 | infy_fork (EV_A); |
1744 | infy_fork (EV_A); |
1212 | #endif |
1745 | #endif |
1213 | |
1746 | |
1214 | if (ev_is_active (&pipeev)) |
1747 | if (ev_is_active (&pipe_w)) |
1215 | { |
1748 | { |
1216 | /* this "locks" the handlers against writing to the pipe */ |
1749 | /* this "locks" the handlers against writing to the pipe */ |
1217 | gotsig = gotasync = 1; |
1750 | /* while we modify the fd vars */ |
|
|
1751 | sig_pending = 1; |
|
|
1752 | #if EV_ASYNC_ENABLE |
|
|
1753 | async_pending = 1; |
|
|
1754 | #endif |
1218 | |
1755 | |
1219 | ev_ref (EV_A); |
1756 | ev_ref (EV_A); |
1220 | ev_io_stop (EV_A_ &pipeev); |
1757 | ev_io_stop (EV_A_ &pipe_w); |
1221 | close (evpipe [0]); |
1758 | |
1222 | close (evpipe [1]); |
1759 | #if EV_USE_EVENTFD |
|
|
1760 | if (evfd >= 0) |
|
|
1761 | close (evfd); |
|
|
1762 | #endif |
|
|
1763 | |
|
|
1764 | if (evpipe [0] >= 0) |
|
|
1765 | { |
|
|
1766 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1767 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1768 | } |
1223 | |
1769 | |
1224 | evpipe_init (EV_A); |
1770 | evpipe_init (EV_A); |
1225 | /* now iterate over everything, in case we missed something */ |
1771 | /* now iterate over everything, in case we missed something */ |
1226 | pipecb (EV_A_ &pipeev, EV_READ); |
1772 | pipecb (EV_A_ &pipe_w, EV_READ); |
1227 | } |
1773 | } |
1228 | |
1774 | |
1229 | postfork = 0; |
1775 | postfork = 0; |
1230 | } |
1776 | } |
1231 | |
1777 | |
1232 | #if EV_MULTIPLICITY |
1778 | #if EV_MULTIPLICITY |
|
|
1779 | |
1233 | struct ev_loop * |
1780 | struct ev_loop * |
1234 | ev_loop_new (unsigned int flags) |
1781 | ev_loop_new (unsigned int flags) |
1235 | { |
1782 | { |
1236 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1783 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1237 | |
1784 | |
1238 | memset (loop, 0, sizeof (struct ev_loop)); |
1785 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1239 | |
|
|
1240 | loop_init (EV_A_ flags); |
1786 | loop_init (EV_A_ flags); |
1241 | |
1787 | |
1242 | if (ev_backend (EV_A)) |
1788 | if (ev_backend (EV_A)) |
1243 | return loop; |
1789 | return EV_A; |
1244 | |
1790 | |
1245 | return 0; |
1791 | return 0; |
1246 | } |
1792 | } |
1247 | |
1793 | |
1248 | void |
1794 | void |
… | |
… | |
1255 | void |
1801 | void |
1256 | ev_loop_fork (EV_P) |
1802 | ev_loop_fork (EV_P) |
1257 | { |
1803 | { |
1258 | postfork = 1; /* must be in line with ev_default_fork */ |
1804 | postfork = 1; /* must be in line with ev_default_fork */ |
1259 | } |
1805 | } |
|
|
1806 | #endif /* multiplicity */ |
1260 | |
1807 | |
|
|
1808 | #if EV_VERIFY |
|
|
1809 | static void noinline |
|
|
1810 | verify_watcher (EV_P_ W w) |
|
|
1811 | { |
|
|
1812 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1813 | |
|
|
1814 | if (w->pending) |
|
|
1815 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | static void noinline |
|
|
1819 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1820 | { |
|
|
1821 | int i; |
|
|
1822 | |
|
|
1823 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1824 | { |
|
|
1825 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1826 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1827 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1828 | |
|
|
1829 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1830 | } |
|
|
1831 | } |
|
|
1832 | |
|
|
1833 | static void noinline |
|
|
1834 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1835 | { |
|
|
1836 | while (cnt--) |
|
|
1837 | { |
|
|
1838 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1839 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1840 | } |
|
|
1841 | } |
|
|
1842 | #endif |
|
|
1843 | |
|
|
1844 | #if EV_MINIMAL < 2 |
|
|
1845 | void |
|
|
1846 | ev_loop_verify (EV_P) |
|
|
1847 | { |
|
|
1848 | #if EV_VERIFY |
|
|
1849 | int i; |
|
|
1850 | WL w; |
|
|
1851 | |
|
|
1852 | assert (activecnt >= -1); |
|
|
1853 | |
|
|
1854 | assert (fdchangemax >= fdchangecnt); |
|
|
1855 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1856 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1857 | |
|
|
1858 | assert (anfdmax >= 0); |
|
|
1859 | for (i = 0; i < anfdmax; ++i) |
|
|
1860 | for (w = anfds [i].head; w; w = w->next) |
|
|
1861 | { |
|
|
1862 | verify_watcher (EV_A_ (W)w); |
|
|
1863 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1864 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1865 | } |
|
|
1866 | |
|
|
1867 | assert (timermax >= timercnt); |
|
|
1868 | verify_heap (EV_A_ timers, timercnt); |
|
|
1869 | |
|
|
1870 | #if EV_PERIODIC_ENABLE |
|
|
1871 | assert (periodicmax >= periodiccnt); |
|
|
1872 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1873 | #endif |
|
|
1874 | |
|
|
1875 | for (i = NUMPRI; i--; ) |
|
|
1876 | { |
|
|
1877 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1878 | #if EV_IDLE_ENABLE |
|
|
1879 | assert (idleall >= 0); |
|
|
1880 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1881 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1882 | #endif |
|
|
1883 | } |
|
|
1884 | |
|
|
1885 | #if EV_FORK_ENABLE |
|
|
1886 | assert (forkmax >= forkcnt); |
|
|
1887 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1888 | #endif |
|
|
1889 | |
|
|
1890 | #if EV_ASYNC_ENABLE |
|
|
1891 | assert (asyncmax >= asynccnt); |
|
|
1892 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1893 | #endif |
|
|
1894 | |
|
|
1895 | assert (preparemax >= preparecnt); |
|
|
1896 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1897 | |
|
|
1898 | assert (checkmax >= checkcnt); |
|
|
1899 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1900 | |
|
|
1901 | # if 0 |
|
|
1902 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1903 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1904 | # endif |
|
|
1905 | #endif |
|
|
1906 | } |
1261 | #endif |
1907 | #endif |
1262 | |
1908 | |
1263 | #if EV_MULTIPLICITY |
1909 | #if EV_MULTIPLICITY |
1264 | struct ev_loop * |
1910 | struct ev_loop * |
1265 | ev_default_loop_init (unsigned int flags) |
1911 | ev_default_loop_init (unsigned int flags) |
… | |
… | |
1269 | #endif |
1915 | #endif |
1270 | { |
1916 | { |
1271 | if (!ev_default_loop_ptr) |
1917 | if (!ev_default_loop_ptr) |
1272 | { |
1918 | { |
1273 | #if EV_MULTIPLICITY |
1919 | #if EV_MULTIPLICITY |
1274 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1920 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1275 | #else |
1921 | #else |
1276 | ev_default_loop_ptr = 1; |
1922 | ev_default_loop_ptr = 1; |
1277 | #endif |
1923 | #endif |
1278 | |
1924 | |
1279 | loop_init (EV_A_ flags); |
1925 | loop_init (EV_A_ flags); |
… | |
… | |
1296 | |
1942 | |
1297 | void |
1943 | void |
1298 | ev_default_destroy (void) |
1944 | ev_default_destroy (void) |
1299 | { |
1945 | { |
1300 | #if EV_MULTIPLICITY |
1946 | #if EV_MULTIPLICITY |
1301 | struct ev_loop *loop = ev_default_loop_ptr; |
1947 | EV_P = ev_default_loop_ptr; |
1302 | #endif |
1948 | #endif |
|
|
1949 | |
|
|
1950 | ev_default_loop_ptr = 0; |
1303 | |
1951 | |
1304 | #ifndef _WIN32 |
1952 | #ifndef _WIN32 |
1305 | ev_ref (EV_A); /* child watcher */ |
1953 | ev_ref (EV_A); /* child watcher */ |
1306 | ev_signal_stop (EV_A_ &childev); |
1954 | ev_signal_stop (EV_A_ &childev); |
1307 | #endif |
1955 | #endif |
… | |
… | |
1311 | |
1959 | |
1312 | void |
1960 | void |
1313 | ev_default_fork (void) |
1961 | ev_default_fork (void) |
1314 | { |
1962 | { |
1315 | #if EV_MULTIPLICITY |
1963 | #if EV_MULTIPLICITY |
1316 | struct ev_loop *loop = ev_default_loop_ptr; |
1964 | EV_P = ev_default_loop_ptr; |
1317 | #endif |
1965 | #endif |
1318 | |
1966 | |
1319 | if (backend) |
|
|
1320 | postfork = 1; /* must be in line with ev_loop_fork */ |
1967 | postfork = 1; /* must be in line with ev_loop_fork */ |
1321 | } |
1968 | } |
1322 | |
1969 | |
1323 | /*****************************************************************************/ |
1970 | /*****************************************************************************/ |
1324 | |
1971 | |
1325 | void |
1972 | void |
1326 | ev_invoke (EV_P_ void *w, int revents) |
1973 | ev_invoke (EV_P_ void *w, int revents) |
1327 | { |
1974 | { |
1328 | EV_CB_INVOKE ((W)w, revents); |
1975 | EV_CB_INVOKE ((W)w, revents); |
1329 | } |
1976 | } |
1330 | |
1977 | |
1331 | void inline_speed |
1978 | unsigned int |
1332 | call_pending (EV_P) |
1979 | ev_pending_count (EV_P) |
|
|
1980 | { |
|
|
1981 | int pri; |
|
|
1982 | unsigned int count = 0; |
|
|
1983 | |
|
|
1984 | for (pri = NUMPRI; pri--; ) |
|
|
1985 | count += pendingcnt [pri]; |
|
|
1986 | |
|
|
1987 | return count; |
|
|
1988 | } |
|
|
1989 | |
|
|
1990 | void noinline |
|
|
1991 | ev_invoke_pending (EV_P) |
1333 | { |
1992 | { |
1334 | int pri; |
1993 | int pri; |
1335 | |
1994 | |
1336 | for (pri = NUMPRI; pri--; ) |
1995 | for (pri = NUMPRI; pri--; ) |
1337 | while (pendingcnt [pri]) |
1996 | while (pendingcnt [pri]) |
1338 | { |
1997 | { |
1339 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1998 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1340 | |
1999 | |
1341 | if (expect_true (p->w)) |
|
|
1342 | { |
|
|
1343 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2000 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2001 | /* ^ this is no longer true, as pending_w could be here */ |
1344 | |
2002 | |
1345 | p->w->pending = 0; |
2003 | p->w->pending = 0; |
1346 | EV_CB_INVOKE (p->w, p->events); |
2004 | EV_CB_INVOKE (p->w, p->events); |
1347 | } |
2005 | EV_FREQUENT_CHECK; |
1348 | } |
2006 | } |
1349 | } |
2007 | } |
1350 | |
2008 | |
1351 | void inline_size |
|
|
1352 | timers_reify (EV_P) |
|
|
1353 | { |
|
|
1354 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1355 | { |
|
|
1356 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1357 | |
|
|
1358 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1359 | |
|
|
1360 | /* first reschedule or stop timer */ |
|
|
1361 | if (w->repeat) |
|
|
1362 | { |
|
|
1363 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1364 | |
|
|
1365 | ((WT)w)->at += w->repeat; |
|
|
1366 | if (((WT)w)->at < mn_now) |
|
|
1367 | ((WT)w)->at = mn_now; |
|
|
1368 | |
|
|
1369 | downheap (timers, timercnt, 0); |
|
|
1370 | } |
|
|
1371 | else |
|
|
1372 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1373 | |
|
|
1374 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1375 | } |
|
|
1376 | } |
|
|
1377 | |
|
|
1378 | #if EV_PERIODIC_ENABLE |
|
|
1379 | void inline_size |
|
|
1380 | periodics_reify (EV_P) |
|
|
1381 | { |
|
|
1382 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1383 | { |
|
|
1384 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1385 | |
|
|
1386 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1387 | |
|
|
1388 | /* first reschedule or stop timer */ |
|
|
1389 | if (w->reschedule_cb) |
|
|
1390 | { |
|
|
1391 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1392 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1393 | downheap (periodics, periodiccnt, 0); |
|
|
1394 | } |
|
|
1395 | else if (w->interval) |
|
|
1396 | { |
|
|
1397 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1398 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1399 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1400 | downheap (periodics, periodiccnt, 0); |
|
|
1401 | } |
|
|
1402 | else |
|
|
1403 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1404 | |
|
|
1405 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1406 | } |
|
|
1407 | } |
|
|
1408 | |
|
|
1409 | static void noinline |
|
|
1410 | periodics_reschedule (EV_P) |
|
|
1411 | { |
|
|
1412 | int i; |
|
|
1413 | |
|
|
1414 | /* adjust periodics after time jump */ |
|
|
1415 | for (i = 0; i < periodiccnt; ++i) |
|
|
1416 | { |
|
|
1417 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1418 | |
|
|
1419 | if (w->reschedule_cb) |
|
|
1420 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1421 | else if (w->interval) |
|
|
1422 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1423 | } |
|
|
1424 | |
|
|
1425 | /* now rebuild the heap */ |
|
|
1426 | for (i = periodiccnt >> 1; i--; ) |
|
|
1427 | downheap (periodics, periodiccnt, i); |
|
|
1428 | } |
|
|
1429 | #endif |
|
|
1430 | |
|
|
1431 | #if EV_IDLE_ENABLE |
2009 | #if EV_IDLE_ENABLE |
1432 | void inline_size |
2010 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2011 | /* only when higher priorities are idle" logic */ |
|
|
2012 | inline_size void |
1433 | idle_reify (EV_P) |
2013 | idle_reify (EV_P) |
1434 | { |
2014 | { |
1435 | if (expect_false (idleall)) |
2015 | if (expect_false (idleall)) |
1436 | { |
2016 | { |
1437 | int pri; |
2017 | int pri; |
… | |
… | |
1449 | } |
2029 | } |
1450 | } |
2030 | } |
1451 | } |
2031 | } |
1452 | #endif |
2032 | #endif |
1453 | |
2033 | |
1454 | void inline_speed |
2034 | /* make timers pending */ |
|
|
2035 | inline_size void |
|
|
2036 | timers_reify (EV_P) |
|
|
2037 | { |
|
|
2038 | EV_FREQUENT_CHECK; |
|
|
2039 | |
|
|
2040 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2041 | { |
|
|
2042 | do |
|
|
2043 | { |
|
|
2044 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2045 | |
|
|
2046 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2047 | |
|
|
2048 | /* first reschedule or stop timer */ |
|
|
2049 | if (w->repeat) |
|
|
2050 | { |
|
|
2051 | ev_at (w) += w->repeat; |
|
|
2052 | if (ev_at (w) < mn_now) |
|
|
2053 | ev_at (w) = mn_now; |
|
|
2054 | |
|
|
2055 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2056 | |
|
|
2057 | ANHE_at_cache (timers [HEAP0]); |
|
|
2058 | downheap (timers, timercnt, HEAP0); |
|
|
2059 | } |
|
|
2060 | else |
|
|
2061 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2062 | |
|
|
2063 | EV_FREQUENT_CHECK; |
|
|
2064 | feed_reverse (EV_A_ (W)w); |
|
|
2065 | } |
|
|
2066 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2067 | |
|
|
2068 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
2069 | } |
|
|
2070 | } |
|
|
2071 | |
|
|
2072 | #if EV_PERIODIC_ENABLE |
|
|
2073 | /* make periodics pending */ |
|
|
2074 | inline_size void |
|
|
2075 | periodics_reify (EV_P) |
|
|
2076 | { |
|
|
2077 | EV_FREQUENT_CHECK; |
|
|
2078 | |
|
|
2079 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2080 | { |
|
|
2081 | int feed_count = 0; |
|
|
2082 | |
|
|
2083 | do |
|
|
2084 | { |
|
|
2085 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2086 | |
|
|
2087 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2088 | |
|
|
2089 | /* first reschedule or stop timer */ |
|
|
2090 | if (w->reschedule_cb) |
|
|
2091 | { |
|
|
2092 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2093 | |
|
|
2094 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2095 | |
|
|
2096 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2097 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2098 | } |
|
|
2099 | else if (w->interval) |
|
|
2100 | { |
|
|
2101 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2102 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2103 | /* this might happen because of floating point inexactness */ |
|
|
2104 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2105 | { |
|
|
2106 | ev_at (w) += w->interval; |
|
|
2107 | |
|
|
2108 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2109 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2110 | /* has effectively asked to get triggered more often than possible */ |
|
|
2111 | if (ev_at (w) < ev_rt_now) |
|
|
2112 | ev_at (w) = ev_rt_now; |
|
|
2113 | } |
|
|
2114 | |
|
|
2115 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2116 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2117 | } |
|
|
2118 | else |
|
|
2119 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2120 | |
|
|
2121 | EV_FREQUENT_CHECK; |
|
|
2122 | feed_reverse (EV_A_ (W)w); |
|
|
2123 | } |
|
|
2124 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2125 | |
|
|
2126 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2127 | } |
|
|
2128 | } |
|
|
2129 | |
|
|
2130 | /* simply recalculate all periodics */ |
|
|
2131 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2132 | static void noinline |
|
|
2133 | periodics_reschedule (EV_P) |
|
|
2134 | { |
|
|
2135 | int i; |
|
|
2136 | |
|
|
2137 | /* adjust periodics after time jump */ |
|
|
2138 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2139 | { |
|
|
2140 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2141 | |
|
|
2142 | if (w->reschedule_cb) |
|
|
2143 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2144 | else if (w->interval) |
|
|
2145 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2146 | |
|
|
2147 | ANHE_at_cache (periodics [i]); |
|
|
2148 | } |
|
|
2149 | |
|
|
2150 | reheap (periodics, periodiccnt); |
|
|
2151 | } |
|
|
2152 | #endif |
|
|
2153 | |
|
|
2154 | /* adjust all timers by a given offset */ |
|
|
2155 | static void noinline |
|
|
2156 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2157 | { |
|
|
2158 | int i; |
|
|
2159 | |
|
|
2160 | for (i = 0; i < timercnt; ++i) |
|
|
2161 | { |
|
|
2162 | ANHE *he = timers + i + HEAP0; |
|
|
2163 | ANHE_w (*he)->at += adjust; |
|
|
2164 | ANHE_at_cache (*he); |
|
|
2165 | } |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2169 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2170 | inline_speed void |
1455 | time_update (EV_P_ ev_tstamp max_block) |
2171 | time_update (EV_P_ ev_tstamp max_block) |
1456 | { |
2172 | { |
1457 | int i; |
|
|
1458 | |
|
|
1459 | #if EV_USE_MONOTONIC |
2173 | #if EV_USE_MONOTONIC |
1460 | if (expect_true (have_monotonic)) |
2174 | if (expect_true (have_monotonic)) |
1461 | { |
2175 | { |
|
|
2176 | int i; |
1462 | ev_tstamp odiff = rtmn_diff; |
2177 | ev_tstamp odiff = rtmn_diff; |
1463 | |
2178 | |
1464 | mn_now = get_clock (); |
2179 | mn_now = get_clock (); |
1465 | |
2180 | |
1466 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2181 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1484 | */ |
2199 | */ |
1485 | for (i = 4; --i; ) |
2200 | for (i = 4; --i; ) |
1486 | { |
2201 | { |
1487 | rtmn_diff = ev_rt_now - mn_now; |
2202 | rtmn_diff = ev_rt_now - mn_now; |
1488 | |
2203 | |
1489 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2204 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1490 | return; /* all is well */ |
2205 | return; /* all is well */ |
1491 | |
2206 | |
1492 | ev_rt_now = ev_time (); |
2207 | ev_rt_now = ev_time (); |
1493 | mn_now = get_clock (); |
2208 | mn_now = get_clock (); |
1494 | now_floor = mn_now; |
2209 | now_floor = mn_now; |
1495 | } |
2210 | } |
1496 | |
2211 | |
|
|
2212 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2213 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1497 | # if EV_PERIODIC_ENABLE |
2214 | # if EV_PERIODIC_ENABLE |
1498 | periodics_reschedule (EV_A); |
2215 | periodics_reschedule (EV_A); |
1499 | # endif |
2216 | # endif |
1500 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1501 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1502 | } |
2217 | } |
1503 | else |
2218 | else |
1504 | #endif |
2219 | #endif |
1505 | { |
2220 | { |
1506 | ev_rt_now = ev_time (); |
2221 | ev_rt_now = ev_time (); |
1507 | |
2222 | |
1508 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2223 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1509 | { |
2224 | { |
|
|
2225 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2226 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1510 | #if EV_PERIODIC_ENABLE |
2227 | #if EV_PERIODIC_ENABLE |
1511 | periodics_reschedule (EV_A); |
2228 | periodics_reschedule (EV_A); |
1512 | #endif |
2229 | #endif |
1513 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1514 | for (i = 0; i < timercnt; ++i) |
|
|
1515 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1516 | } |
2230 | } |
1517 | |
2231 | |
1518 | mn_now = ev_rt_now; |
2232 | mn_now = ev_rt_now; |
1519 | } |
2233 | } |
1520 | } |
2234 | } |
1521 | |
2235 | |
1522 | void |
2236 | void |
1523 | ev_ref (EV_P) |
|
|
1524 | { |
|
|
1525 | ++activecnt; |
|
|
1526 | } |
|
|
1527 | |
|
|
1528 | void |
|
|
1529 | ev_unref (EV_P) |
|
|
1530 | { |
|
|
1531 | --activecnt; |
|
|
1532 | } |
|
|
1533 | |
|
|
1534 | static int loop_done; |
|
|
1535 | |
|
|
1536 | void |
|
|
1537 | ev_loop (EV_P_ int flags) |
2237 | ev_loop (EV_P_ int flags) |
1538 | { |
2238 | { |
1539 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2239 | #if EV_MINIMAL < 2 |
1540 | ? EVUNLOOP_ONE |
2240 | ++loop_depth; |
1541 | : EVUNLOOP_CANCEL; |
2241 | #endif |
1542 | |
2242 | |
|
|
2243 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2244 | |
|
|
2245 | loop_done = EVUNLOOP_CANCEL; |
|
|
2246 | |
1543 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2247 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1544 | |
2248 | |
1545 | do |
2249 | do |
1546 | { |
2250 | { |
|
|
2251 | #if EV_VERIFY >= 2 |
|
|
2252 | ev_loop_verify (EV_A); |
|
|
2253 | #endif |
|
|
2254 | |
1547 | #ifndef _WIN32 |
2255 | #ifndef _WIN32 |
1548 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2256 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1549 | if (expect_false (getpid () != curpid)) |
2257 | if (expect_false (getpid () != curpid)) |
1550 | { |
2258 | { |
1551 | curpid = getpid (); |
2259 | curpid = getpid (); |
… | |
… | |
1557 | /* we might have forked, so queue fork handlers */ |
2265 | /* we might have forked, so queue fork handlers */ |
1558 | if (expect_false (postfork)) |
2266 | if (expect_false (postfork)) |
1559 | if (forkcnt) |
2267 | if (forkcnt) |
1560 | { |
2268 | { |
1561 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2269 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1562 | call_pending (EV_A); |
2270 | EV_INVOKE_PENDING; |
1563 | } |
2271 | } |
1564 | #endif |
2272 | #endif |
1565 | |
2273 | |
1566 | /* queue prepare watchers (and execute them) */ |
2274 | /* queue prepare watchers (and execute them) */ |
1567 | if (expect_false (preparecnt)) |
2275 | if (expect_false (preparecnt)) |
1568 | { |
2276 | { |
1569 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2277 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1570 | call_pending (EV_A); |
2278 | EV_INVOKE_PENDING; |
1571 | } |
2279 | } |
1572 | |
2280 | |
1573 | if (expect_false (!activecnt)) |
2281 | if (expect_false (loop_done)) |
1574 | break; |
2282 | break; |
1575 | |
2283 | |
1576 | /* we might have forked, so reify kernel state if necessary */ |
2284 | /* we might have forked, so reify kernel state if necessary */ |
1577 | if (expect_false (postfork)) |
2285 | if (expect_false (postfork)) |
1578 | loop_fork (EV_A); |
2286 | loop_fork (EV_A); |
… | |
… | |
1585 | ev_tstamp waittime = 0.; |
2293 | ev_tstamp waittime = 0.; |
1586 | ev_tstamp sleeptime = 0.; |
2294 | ev_tstamp sleeptime = 0.; |
1587 | |
2295 | |
1588 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2296 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1589 | { |
2297 | { |
|
|
2298 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2299 | ev_tstamp prev_mn_now = mn_now; |
|
|
2300 | |
1590 | /* update time to cancel out callback processing overhead */ |
2301 | /* update time to cancel out callback processing overhead */ |
1591 | time_update (EV_A_ 1e100); |
2302 | time_update (EV_A_ 1e100); |
1592 | |
2303 | |
1593 | waittime = MAX_BLOCKTIME; |
2304 | waittime = MAX_BLOCKTIME; |
1594 | |
2305 | |
1595 | if (timercnt) |
2306 | if (timercnt) |
1596 | { |
2307 | { |
1597 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2308 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1598 | if (waittime > to) waittime = to; |
2309 | if (waittime > to) waittime = to; |
1599 | } |
2310 | } |
1600 | |
2311 | |
1601 | #if EV_PERIODIC_ENABLE |
2312 | #if EV_PERIODIC_ENABLE |
1602 | if (periodiccnt) |
2313 | if (periodiccnt) |
1603 | { |
2314 | { |
1604 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2315 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1605 | if (waittime > to) waittime = to; |
2316 | if (waittime > to) waittime = to; |
1606 | } |
2317 | } |
1607 | #endif |
2318 | #endif |
1608 | |
2319 | |
|
|
2320 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1609 | if (expect_false (waittime < timeout_blocktime)) |
2321 | if (expect_false (waittime < timeout_blocktime)) |
1610 | waittime = timeout_blocktime; |
2322 | waittime = timeout_blocktime; |
1611 | |
2323 | |
1612 | sleeptime = waittime - backend_fudge; |
2324 | /* extra check because io_blocktime is commonly 0 */ |
1613 | |
|
|
1614 | if (expect_true (sleeptime > io_blocktime)) |
2325 | if (expect_false (io_blocktime)) |
1615 | sleeptime = io_blocktime; |
|
|
1616 | |
|
|
1617 | if (sleeptime) |
|
|
1618 | { |
2326 | { |
|
|
2327 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2328 | |
|
|
2329 | if (sleeptime > waittime - backend_fudge) |
|
|
2330 | sleeptime = waittime - backend_fudge; |
|
|
2331 | |
|
|
2332 | if (expect_true (sleeptime > 0.)) |
|
|
2333 | { |
1619 | ev_sleep (sleeptime); |
2334 | ev_sleep (sleeptime); |
1620 | waittime -= sleeptime; |
2335 | waittime -= sleeptime; |
|
|
2336 | } |
1621 | } |
2337 | } |
1622 | } |
2338 | } |
1623 | |
2339 | |
|
|
2340 | #if EV_MINIMAL < 2 |
1624 | ++loop_count; |
2341 | ++loop_count; |
|
|
2342 | #endif |
|
|
2343 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1625 | backend_poll (EV_A_ waittime); |
2344 | backend_poll (EV_A_ waittime); |
|
|
2345 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1626 | |
2346 | |
1627 | /* update ev_rt_now, do magic */ |
2347 | /* update ev_rt_now, do magic */ |
1628 | time_update (EV_A_ waittime + sleeptime); |
2348 | time_update (EV_A_ waittime + sleeptime); |
1629 | } |
2349 | } |
1630 | |
2350 | |
… | |
… | |
1641 | |
2361 | |
1642 | /* queue check watchers, to be executed first */ |
2362 | /* queue check watchers, to be executed first */ |
1643 | if (expect_false (checkcnt)) |
2363 | if (expect_false (checkcnt)) |
1644 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2364 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1645 | |
2365 | |
1646 | call_pending (EV_A); |
2366 | EV_INVOKE_PENDING; |
1647 | |
|
|
1648 | } |
2367 | } |
1649 | while (expect_true (activecnt && !loop_done)); |
2368 | while (expect_true ( |
|
|
2369 | activecnt |
|
|
2370 | && !loop_done |
|
|
2371 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2372 | )); |
1650 | |
2373 | |
1651 | if (loop_done == EVUNLOOP_ONE) |
2374 | if (loop_done == EVUNLOOP_ONE) |
1652 | loop_done = EVUNLOOP_CANCEL; |
2375 | loop_done = EVUNLOOP_CANCEL; |
|
|
2376 | |
|
|
2377 | #if EV_MINIMAL < 2 |
|
|
2378 | --loop_depth; |
|
|
2379 | #endif |
1653 | } |
2380 | } |
1654 | |
2381 | |
1655 | void |
2382 | void |
1656 | ev_unloop (EV_P_ int how) |
2383 | ev_unloop (EV_P_ int how) |
1657 | { |
2384 | { |
1658 | loop_done = how; |
2385 | loop_done = how; |
1659 | } |
2386 | } |
1660 | |
2387 | |
|
|
2388 | void |
|
|
2389 | ev_ref (EV_P) |
|
|
2390 | { |
|
|
2391 | ++activecnt; |
|
|
2392 | } |
|
|
2393 | |
|
|
2394 | void |
|
|
2395 | ev_unref (EV_P) |
|
|
2396 | { |
|
|
2397 | --activecnt; |
|
|
2398 | } |
|
|
2399 | |
|
|
2400 | void |
|
|
2401 | ev_now_update (EV_P) |
|
|
2402 | { |
|
|
2403 | time_update (EV_A_ 1e100); |
|
|
2404 | } |
|
|
2405 | |
|
|
2406 | void |
|
|
2407 | ev_suspend (EV_P) |
|
|
2408 | { |
|
|
2409 | ev_now_update (EV_A); |
|
|
2410 | } |
|
|
2411 | |
|
|
2412 | void |
|
|
2413 | ev_resume (EV_P) |
|
|
2414 | { |
|
|
2415 | ev_tstamp mn_prev = mn_now; |
|
|
2416 | |
|
|
2417 | ev_now_update (EV_A); |
|
|
2418 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2419 | #if EV_PERIODIC_ENABLE |
|
|
2420 | /* TODO: really do this? */ |
|
|
2421 | periodics_reschedule (EV_A); |
|
|
2422 | #endif |
|
|
2423 | } |
|
|
2424 | |
1661 | /*****************************************************************************/ |
2425 | /*****************************************************************************/ |
|
|
2426 | /* singly-linked list management, used when the expected list length is short */ |
1662 | |
2427 | |
1663 | void inline_size |
2428 | inline_size void |
1664 | wlist_add (WL *head, WL elem) |
2429 | wlist_add (WL *head, WL elem) |
1665 | { |
2430 | { |
1666 | elem->next = *head; |
2431 | elem->next = *head; |
1667 | *head = elem; |
2432 | *head = elem; |
1668 | } |
2433 | } |
1669 | |
2434 | |
1670 | void inline_size |
2435 | inline_size void |
1671 | wlist_del (WL *head, WL elem) |
2436 | wlist_del (WL *head, WL elem) |
1672 | { |
2437 | { |
1673 | while (*head) |
2438 | while (*head) |
1674 | { |
2439 | { |
1675 | if (*head == elem) |
2440 | if (expect_true (*head == elem)) |
1676 | { |
2441 | { |
1677 | *head = elem->next; |
2442 | *head = elem->next; |
1678 | return; |
2443 | break; |
1679 | } |
2444 | } |
1680 | |
2445 | |
1681 | head = &(*head)->next; |
2446 | head = &(*head)->next; |
1682 | } |
2447 | } |
1683 | } |
2448 | } |
1684 | |
2449 | |
1685 | void inline_speed |
2450 | /* internal, faster, version of ev_clear_pending */ |
|
|
2451 | inline_speed void |
1686 | clear_pending (EV_P_ W w) |
2452 | clear_pending (EV_P_ W w) |
1687 | { |
2453 | { |
1688 | if (w->pending) |
2454 | if (w->pending) |
1689 | { |
2455 | { |
1690 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2456 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1691 | w->pending = 0; |
2457 | w->pending = 0; |
1692 | } |
2458 | } |
1693 | } |
2459 | } |
1694 | |
2460 | |
1695 | int |
2461 | int |
… | |
… | |
1699 | int pending = w_->pending; |
2465 | int pending = w_->pending; |
1700 | |
2466 | |
1701 | if (expect_true (pending)) |
2467 | if (expect_true (pending)) |
1702 | { |
2468 | { |
1703 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2469 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2470 | p->w = (W)&pending_w; |
1704 | w_->pending = 0; |
2471 | w_->pending = 0; |
1705 | p->w = 0; |
|
|
1706 | return p->events; |
2472 | return p->events; |
1707 | } |
2473 | } |
1708 | else |
2474 | else |
1709 | return 0; |
2475 | return 0; |
1710 | } |
2476 | } |
1711 | |
2477 | |
1712 | void inline_size |
2478 | inline_size void |
1713 | pri_adjust (EV_P_ W w) |
2479 | pri_adjust (EV_P_ W w) |
1714 | { |
2480 | { |
1715 | int pri = w->priority; |
2481 | int pri = ev_priority (w); |
1716 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2482 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1717 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2483 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1718 | w->priority = pri; |
2484 | ev_set_priority (w, pri); |
1719 | } |
2485 | } |
1720 | |
2486 | |
1721 | void inline_speed |
2487 | inline_speed void |
1722 | ev_start (EV_P_ W w, int active) |
2488 | ev_start (EV_P_ W w, int active) |
1723 | { |
2489 | { |
1724 | pri_adjust (EV_A_ w); |
2490 | pri_adjust (EV_A_ w); |
1725 | w->active = active; |
2491 | w->active = active; |
1726 | ev_ref (EV_A); |
2492 | ev_ref (EV_A); |
1727 | } |
2493 | } |
1728 | |
2494 | |
1729 | void inline_size |
2495 | inline_size void |
1730 | ev_stop (EV_P_ W w) |
2496 | ev_stop (EV_P_ W w) |
1731 | { |
2497 | { |
1732 | ev_unref (EV_A); |
2498 | ev_unref (EV_A); |
1733 | w->active = 0; |
2499 | w->active = 0; |
1734 | } |
2500 | } |
… | |
… | |
1741 | int fd = w->fd; |
2507 | int fd = w->fd; |
1742 | |
2508 | |
1743 | if (expect_false (ev_is_active (w))) |
2509 | if (expect_false (ev_is_active (w))) |
1744 | return; |
2510 | return; |
1745 | |
2511 | |
1746 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2512 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2513 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2514 | |
|
|
2515 | EV_FREQUENT_CHECK; |
1747 | |
2516 | |
1748 | ev_start (EV_A_ (W)w, 1); |
2517 | ev_start (EV_A_ (W)w, 1); |
1749 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2518 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1750 | wlist_add (&anfds[fd].head, (WL)w); |
2519 | wlist_add (&anfds[fd].head, (WL)w); |
1751 | |
2520 | |
1752 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2521 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1753 | w->events &= ~EV_IOFDSET; |
2522 | w->events &= ~EV__IOFDSET; |
|
|
2523 | |
|
|
2524 | EV_FREQUENT_CHECK; |
1754 | } |
2525 | } |
1755 | |
2526 | |
1756 | void noinline |
2527 | void noinline |
1757 | ev_io_stop (EV_P_ ev_io *w) |
2528 | ev_io_stop (EV_P_ ev_io *w) |
1758 | { |
2529 | { |
1759 | clear_pending (EV_A_ (W)w); |
2530 | clear_pending (EV_A_ (W)w); |
1760 | if (expect_false (!ev_is_active (w))) |
2531 | if (expect_false (!ev_is_active (w))) |
1761 | return; |
2532 | return; |
1762 | |
2533 | |
1763 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2534 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2535 | |
|
|
2536 | EV_FREQUENT_CHECK; |
1764 | |
2537 | |
1765 | wlist_del (&anfds[w->fd].head, (WL)w); |
2538 | wlist_del (&anfds[w->fd].head, (WL)w); |
1766 | ev_stop (EV_A_ (W)w); |
2539 | ev_stop (EV_A_ (W)w); |
1767 | |
2540 | |
1768 | fd_change (EV_A_ w->fd, 1); |
2541 | fd_change (EV_A_ w->fd, 1); |
|
|
2542 | |
|
|
2543 | EV_FREQUENT_CHECK; |
1769 | } |
2544 | } |
1770 | |
2545 | |
1771 | void noinline |
2546 | void noinline |
1772 | ev_timer_start (EV_P_ ev_timer *w) |
2547 | ev_timer_start (EV_P_ ev_timer *w) |
1773 | { |
2548 | { |
1774 | if (expect_false (ev_is_active (w))) |
2549 | if (expect_false (ev_is_active (w))) |
1775 | return; |
2550 | return; |
1776 | |
2551 | |
1777 | ((WT)w)->at += mn_now; |
2552 | ev_at (w) += mn_now; |
1778 | |
2553 | |
1779 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2554 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1780 | |
2555 | |
|
|
2556 | EV_FREQUENT_CHECK; |
|
|
2557 | |
|
|
2558 | ++timercnt; |
1781 | ev_start (EV_A_ (W)w, ++timercnt); |
2559 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1782 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2560 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1783 | timers [timercnt - 1] = (WT)w; |
2561 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1784 | upheap (timers, timercnt - 1); |
2562 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2563 | upheap (timers, ev_active (w)); |
1785 | |
2564 | |
|
|
2565 | EV_FREQUENT_CHECK; |
|
|
2566 | |
1786 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2567 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1787 | } |
2568 | } |
1788 | |
2569 | |
1789 | void noinline |
2570 | void noinline |
1790 | ev_timer_stop (EV_P_ ev_timer *w) |
2571 | ev_timer_stop (EV_P_ ev_timer *w) |
1791 | { |
2572 | { |
1792 | clear_pending (EV_A_ (W)w); |
2573 | clear_pending (EV_A_ (W)w); |
1793 | if (expect_false (!ev_is_active (w))) |
2574 | if (expect_false (!ev_is_active (w))) |
1794 | return; |
2575 | return; |
1795 | |
2576 | |
1796 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2577 | EV_FREQUENT_CHECK; |
1797 | |
2578 | |
1798 | { |
2579 | { |
1799 | int active = ((W)w)->active; |
2580 | int active = ev_active (w); |
1800 | |
2581 | |
|
|
2582 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2583 | |
|
|
2584 | --timercnt; |
|
|
2585 | |
1801 | if (expect_true (--active < --timercnt)) |
2586 | if (expect_true (active < timercnt + HEAP0)) |
1802 | { |
2587 | { |
1803 | timers [active] = timers [timercnt]; |
2588 | timers [active] = timers [timercnt + HEAP0]; |
1804 | adjustheap (timers, timercnt, active); |
2589 | adjustheap (timers, timercnt, active); |
1805 | } |
2590 | } |
1806 | } |
2591 | } |
1807 | |
2592 | |
1808 | ((WT)w)->at -= mn_now; |
2593 | ev_at (w) -= mn_now; |
1809 | |
2594 | |
1810 | ev_stop (EV_A_ (W)w); |
2595 | ev_stop (EV_A_ (W)w); |
|
|
2596 | |
|
|
2597 | EV_FREQUENT_CHECK; |
1811 | } |
2598 | } |
1812 | |
2599 | |
1813 | void noinline |
2600 | void noinline |
1814 | ev_timer_again (EV_P_ ev_timer *w) |
2601 | ev_timer_again (EV_P_ ev_timer *w) |
1815 | { |
2602 | { |
|
|
2603 | EV_FREQUENT_CHECK; |
|
|
2604 | |
1816 | if (ev_is_active (w)) |
2605 | if (ev_is_active (w)) |
1817 | { |
2606 | { |
1818 | if (w->repeat) |
2607 | if (w->repeat) |
1819 | { |
2608 | { |
1820 | ((WT)w)->at = mn_now + w->repeat; |
2609 | ev_at (w) = mn_now + w->repeat; |
|
|
2610 | ANHE_at_cache (timers [ev_active (w)]); |
1821 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2611 | adjustheap (timers, timercnt, ev_active (w)); |
1822 | } |
2612 | } |
1823 | else |
2613 | else |
1824 | ev_timer_stop (EV_A_ w); |
2614 | ev_timer_stop (EV_A_ w); |
1825 | } |
2615 | } |
1826 | else if (w->repeat) |
2616 | else if (w->repeat) |
1827 | { |
2617 | { |
1828 | w->at = w->repeat; |
2618 | ev_at (w) = w->repeat; |
1829 | ev_timer_start (EV_A_ w); |
2619 | ev_timer_start (EV_A_ w); |
1830 | } |
2620 | } |
|
|
2621 | |
|
|
2622 | EV_FREQUENT_CHECK; |
|
|
2623 | } |
|
|
2624 | |
|
|
2625 | ev_tstamp |
|
|
2626 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2627 | { |
|
|
2628 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1831 | } |
2629 | } |
1832 | |
2630 | |
1833 | #if EV_PERIODIC_ENABLE |
2631 | #if EV_PERIODIC_ENABLE |
1834 | void noinline |
2632 | void noinline |
1835 | ev_periodic_start (EV_P_ ev_periodic *w) |
2633 | ev_periodic_start (EV_P_ ev_periodic *w) |
1836 | { |
2634 | { |
1837 | if (expect_false (ev_is_active (w))) |
2635 | if (expect_false (ev_is_active (w))) |
1838 | return; |
2636 | return; |
1839 | |
2637 | |
1840 | if (w->reschedule_cb) |
2638 | if (w->reschedule_cb) |
1841 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2639 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1842 | else if (w->interval) |
2640 | else if (w->interval) |
1843 | { |
2641 | { |
1844 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2642 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1845 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2643 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1846 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2644 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1847 | } |
2645 | } |
1848 | else |
2646 | else |
1849 | ((WT)w)->at = w->offset; |
2647 | ev_at (w) = w->offset; |
1850 | |
2648 | |
|
|
2649 | EV_FREQUENT_CHECK; |
|
|
2650 | |
|
|
2651 | ++periodiccnt; |
1851 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2652 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1852 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2653 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1853 | periodics [periodiccnt - 1] = (WT)w; |
2654 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1854 | upheap (periodics, periodiccnt - 1); |
2655 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2656 | upheap (periodics, ev_active (w)); |
1855 | |
2657 | |
|
|
2658 | EV_FREQUENT_CHECK; |
|
|
2659 | |
1856 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2660 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1857 | } |
2661 | } |
1858 | |
2662 | |
1859 | void noinline |
2663 | void noinline |
1860 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2664 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1861 | { |
2665 | { |
1862 | clear_pending (EV_A_ (W)w); |
2666 | clear_pending (EV_A_ (W)w); |
1863 | if (expect_false (!ev_is_active (w))) |
2667 | if (expect_false (!ev_is_active (w))) |
1864 | return; |
2668 | return; |
1865 | |
2669 | |
1866 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2670 | EV_FREQUENT_CHECK; |
1867 | |
2671 | |
1868 | { |
2672 | { |
1869 | int active = ((W)w)->active; |
2673 | int active = ev_active (w); |
1870 | |
2674 | |
|
|
2675 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2676 | |
|
|
2677 | --periodiccnt; |
|
|
2678 | |
1871 | if (expect_true (--active < --periodiccnt)) |
2679 | if (expect_true (active < periodiccnt + HEAP0)) |
1872 | { |
2680 | { |
1873 | periodics [active] = periodics [periodiccnt]; |
2681 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1874 | adjustheap (periodics, periodiccnt, active); |
2682 | adjustheap (periodics, periodiccnt, active); |
1875 | } |
2683 | } |
1876 | } |
2684 | } |
1877 | |
2685 | |
1878 | ev_stop (EV_A_ (W)w); |
2686 | ev_stop (EV_A_ (W)w); |
|
|
2687 | |
|
|
2688 | EV_FREQUENT_CHECK; |
1879 | } |
2689 | } |
1880 | |
2690 | |
1881 | void noinline |
2691 | void noinline |
1882 | ev_periodic_again (EV_P_ ev_periodic *w) |
2692 | ev_periodic_again (EV_P_ ev_periodic *w) |
1883 | { |
2693 | { |
… | |
… | |
1892 | #endif |
2702 | #endif |
1893 | |
2703 | |
1894 | void noinline |
2704 | void noinline |
1895 | ev_signal_start (EV_P_ ev_signal *w) |
2705 | ev_signal_start (EV_P_ ev_signal *w) |
1896 | { |
2706 | { |
1897 | #if EV_MULTIPLICITY |
|
|
1898 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1899 | #endif |
|
|
1900 | if (expect_false (ev_is_active (w))) |
2707 | if (expect_false (ev_is_active (w))) |
1901 | return; |
2708 | return; |
1902 | |
2709 | |
1903 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2710 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1904 | |
2711 | |
1905 | evpipe_init (EV_A); |
2712 | #if EV_MULTIPLICITY |
|
|
2713 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2714 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
1906 | |
2715 | |
|
|
2716 | signals [w->signum - 1].loop = EV_A; |
|
|
2717 | #endif |
|
|
2718 | |
|
|
2719 | EV_FREQUENT_CHECK; |
|
|
2720 | |
|
|
2721 | #if EV_USE_SIGNALFD |
|
|
2722 | if (sigfd == -2) |
1907 | { |
2723 | { |
1908 | #ifndef _WIN32 |
2724 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
1909 | sigset_t full, prev; |
2725 | if (sigfd < 0 && errno == EINVAL) |
1910 | sigfillset (&full); |
2726 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
1911 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1912 | #endif |
|
|
1913 | |
2727 | |
1914 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2728 | if (sigfd >= 0) |
|
|
2729 | { |
|
|
2730 | fd_intern (sigfd); /* doing it twice will not hurt */ |
1915 | |
2731 | |
1916 | #ifndef _WIN32 |
2732 | sigemptyset (&sigfd_set); |
1917 | sigprocmask (SIG_SETMASK, &prev, 0); |
2733 | |
1918 | #endif |
2734 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2735 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2736 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2737 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2738 | } |
1919 | } |
2739 | } |
|
|
2740 | |
|
|
2741 | if (sigfd >= 0) |
|
|
2742 | { |
|
|
2743 | /* TODO: check .head */ |
|
|
2744 | sigaddset (&sigfd_set, w->signum); |
|
|
2745 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2746 | |
|
|
2747 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2748 | } |
|
|
2749 | #endif |
1920 | |
2750 | |
1921 | ev_start (EV_A_ (W)w, 1); |
2751 | ev_start (EV_A_ (W)w, 1); |
1922 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2752 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1923 | |
2753 | |
1924 | if (!((WL)w)->next) |
2754 | if (!((WL)w)->next) |
|
|
2755 | # if EV_USE_SIGNALFD |
|
|
2756 | if (sigfd < 0) /*TODO*/ |
|
|
2757 | # endif |
1925 | { |
2758 | { |
1926 | #if _WIN32 |
2759 | # ifdef _WIN32 |
|
|
2760 | evpipe_init (EV_A); |
|
|
2761 | |
1927 | signal (w->signum, sighandler); |
2762 | signal (w->signum, ev_sighandler); |
1928 | #else |
2763 | # else |
1929 | struct sigaction sa; |
2764 | struct sigaction sa; |
|
|
2765 | |
|
|
2766 | evpipe_init (EV_A); |
|
|
2767 | |
1930 | sa.sa_handler = sighandler; |
2768 | sa.sa_handler = ev_sighandler; |
1931 | sigfillset (&sa.sa_mask); |
2769 | sigfillset (&sa.sa_mask); |
1932 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2770 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1933 | sigaction (w->signum, &sa, 0); |
2771 | sigaction (w->signum, &sa, 0); |
|
|
2772 | |
|
|
2773 | sigemptyset (&sa.sa_mask); |
|
|
2774 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2775 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
1934 | #endif |
2776 | #endif |
1935 | } |
2777 | } |
|
|
2778 | |
|
|
2779 | EV_FREQUENT_CHECK; |
1936 | } |
2780 | } |
1937 | |
2781 | |
1938 | void noinline |
2782 | void noinline |
1939 | ev_signal_stop (EV_P_ ev_signal *w) |
2783 | ev_signal_stop (EV_P_ ev_signal *w) |
1940 | { |
2784 | { |
1941 | clear_pending (EV_A_ (W)w); |
2785 | clear_pending (EV_A_ (W)w); |
1942 | if (expect_false (!ev_is_active (w))) |
2786 | if (expect_false (!ev_is_active (w))) |
1943 | return; |
2787 | return; |
1944 | |
2788 | |
|
|
2789 | EV_FREQUENT_CHECK; |
|
|
2790 | |
1945 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2791 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1946 | ev_stop (EV_A_ (W)w); |
2792 | ev_stop (EV_A_ (W)w); |
1947 | |
2793 | |
1948 | if (!signals [w->signum - 1].head) |
2794 | if (!signals [w->signum - 1].head) |
|
|
2795 | { |
|
|
2796 | #if EV_MULTIPLICITY |
|
|
2797 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2798 | #endif |
|
|
2799 | #if EV_USE_SIGNALFD |
|
|
2800 | if (sigfd >= 0) |
|
|
2801 | { |
|
|
2802 | sigset_t ss; |
|
|
2803 | |
|
|
2804 | sigemptyset (&ss); |
|
|
2805 | sigaddset (&ss, w->signum); |
|
|
2806 | sigdelset (&sigfd_set, w->signum); |
|
|
2807 | |
|
|
2808 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2809 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2810 | } |
|
|
2811 | else |
|
|
2812 | #endif |
1949 | signal (w->signum, SIG_DFL); |
2813 | signal (w->signum, SIG_DFL); |
|
|
2814 | } |
|
|
2815 | |
|
|
2816 | EV_FREQUENT_CHECK; |
1950 | } |
2817 | } |
1951 | |
2818 | |
1952 | void |
2819 | void |
1953 | ev_child_start (EV_P_ ev_child *w) |
2820 | ev_child_start (EV_P_ ev_child *w) |
1954 | { |
2821 | { |
1955 | #if EV_MULTIPLICITY |
2822 | #if EV_MULTIPLICITY |
1956 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2823 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1957 | #endif |
2824 | #endif |
1958 | if (expect_false (ev_is_active (w))) |
2825 | if (expect_false (ev_is_active (w))) |
1959 | return; |
2826 | return; |
1960 | |
2827 | |
|
|
2828 | EV_FREQUENT_CHECK; |
|
|
2829 | |
1961 | ev_start (EV_A_ (W)w, 1); |
2830 | ev_start (EV_A_ (W)w, 1); |
1962 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2831 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2832 | |
|
|
2833 | EV_FREQUENT_CHECK; |
1963 | } |
2834 | } |
1964 | |
2835 | |
1965 | void |
2836 | void |
1966 | ev_child_stop (EV_P_ ev_child *w) |
2837 | ev_child_stop (EV_P_ ev_child *w) |
1967 | { |
2838 | { |
1968 | clear_pending (EV_A_ (W)w); |
2839 | clear_pending (EV_A_ (W)w); |
1969 | if (expect_false (!ev_is_active (w))) |
2840 | if (expect_false (!ev_is_active (w))) |
1970 | return; |
2841 | return; |
1971 | |
2842 | |
|
|
2843 | EV_FREQUENT_CHECK; |
|
|
2844 | |
1972 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2845 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1973 | ev_stop (EV_A_ (W)w); |
2846 | ev_stop (EV_A_ (W)w); |
|
|
2847 | |
|
|
2848 | EV_FREQUENT_CHECK; |
1974 | } |
2849 | } |
1975 | |
2850 | |
1976 | #if EV_STAT_ENABLE |
2851 | #if EV_STAT_ENABLE |
1977 | |
2852 | |
1978 | # ifdef _WIN32 |
2853 | # ifdef _WIN32 |
1979 | # undef lstat |
2854 | # undef lstat |
1980 | # define lstat(a,b) _stati64 (a,b) |
2855 | # define lstat(a,b) _stati64 (a,b) |
1981 | # endif |
2856 | # endif |
1982 | |
2857 | |
1983 | #define DEF_STAT_INTERVAL 5.0074891 |
2858 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2859 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1984 | #define MIN_STAT_INTERVAL 0.1074891 |
2860 | #define MIN_STAT_INTERVAL 0.1074891 |
1985 | |
2861 | |
1986 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2862 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1987 | |
2863 | |
1988 | #if EV_USE_INOTIFY |
2864 | #if EV_USE_INOTIFY |
1989 | # define EV_INOTIFY_BUFSIZE 8192 |
2865 | |
|
|
2866 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2867 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1990 | |
2868 | |
1991 | static void noinline |
2869 | static void noinline |
1992 | infy_add (EV_P_ ev_stat *w) |
2870 | infy_add (EV_P_ ev_stat *w) |
1993 | { |
2871 | { |
1994 | 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); |
2872 | 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); |
1995 | |
2873 | |
1996 | if (w->wd < 0) |
2874 | if (w->wd >= 0) |
|
|
2875 | { |
|
|
2876 | struct statfs sfs; |
|
|
2877 | |
|
|
2878 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2879 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2880 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2881 | |
|
|
2882 | if (!fs_2625) |
|
|
2883 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2884 | else if (!statfs (w->path, &sfs) |
|
|
2885 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2886 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2887 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2888 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2889 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2890 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2891 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2892 | else |
|
|
2893 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1997 | { |
2894 | } |
1998 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2895 | else |
|
|
2896 | { |
|
|
2897 | /* can't use inotify, continue to stat */ |
|
|
2898 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1999 | |
2899 | |
2000 | /* monitor some parent directory for speedup hints */ |
2900 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
2901 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2902 | /* but an efficiency issue only */ |
2001 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2903 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2002 | { |
2904 | { |
2003 | char path [4096]; |
2905 | char path [4096]; |
2004 | strcpy (path, w->path); |
2906 | strcpy (path, w->path); |
2005 | |
2907 | |
… | |
… | |
2008 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2910 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2009 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2911 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2010 | |
2912 | |
2011 | char *pend = strrchr (path, '/'); |
2913 | char *pend = strrchr (path, '/'); |
2012 | |
2914 | |
2013 | if (!pend) |
2915 | if (!pend || pend == path) |
2014 | break; /* whoops, no '/', complain to your admin */ |
2916 | break; |
2015 | |
2917 | |
2016 | *pend = 0; |
2918 | *pend = 0; |
2017 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2919 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2018 | } |
2920 | } |
2019 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2921 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2020 | } |
2922 | } |
2021 | } |
2923 | } |
2022 | else |
|
|
2023 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2024 | |
2924 | |
2025 | if (w->wd >= 0) |
2925 | if (w->wd >= 0) |
2026 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2926 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2927 | |
|
|
2928 | /* now re-arm timer, if required */ |
|
|
2929 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2930 | ev_timer_again (EV_A_ &w->timer); |
|
|
2931 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2027 | } |
2932 | } |
2028 | |
2933 | |
2029 | static void noinline |
2934 | static void noinline |
2030 | infy_del (EV_P_ ev_stat *w) |
2935 | infy_del (EV_P_ ev_stat *w) |
2031 | { |
2936 | { |
… | |
… | |
2045 | |
2950 | |
2046 | static void noinline |
2951 | static void noinline |
2047 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2952 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2048 | { |
2953 | { |
2049 | if (slot < 0) |
2954 | if (slot < 0) |
2050 | /* overflow, need to check for all hahs slots */ |
2955 | /* overflow, need to check for all hash slots */ |
2051 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2956 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2052 | infy_wd (EV_A_ slot, wd, ev); |
2957 | infy_wd (EV_A_ slot, wd, ev); |
2053 | else |
2958 | else |
2054 | { |
2959 | { |
2055 | WL w_; |
2960 | WL w_; |
… | |
… | |
2061 | |
2966 | |
2062 | if (w->wd == wd || wd == -1) |
2967 | if (w->wd == wd || wd == -1) |
2063 | { |
2968 | { |
2064 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2969 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2065 | { |
2970 | { |
|
|
2971 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2066 | w->wd = -1; |
2972 | w->wd = -1; |
2067 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2973 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2068 | } |
2974 | } |
2069 | |
2975 | |
2070 | stat_timer_cb (EV_A_ &w->timer, 0); |
2976 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2075 | |
2981 | |
2076 | static void |
2982 | static void |
2077 | infy_cb (EV_P_ ev_io *w, int revents) |
2983 | infy_cb (EV_P_ ev_io *w, int revents) |
2078 | { |
2984 | { |
2079 | char buf [EV_INOTIFY_BUFSIZE]; |
2985 | char buf [EV_INOTIFY_BUFSIZE]; |
2080 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2081 | int ofs; |
2986 | int ofs; |
2082 | int len = read (fs_fd, buf, sizeof (buf)); |
2987 | int len = read (fs_fd, buf, sizeof (buf)); |
2083 | |
2988 | |
2084 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2989 | for (ofs = 0; ofs < len; ) |
|
|
2990 | { |
|
|
2991 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2085 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2992 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2993 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
2994 | } |
2086 | } |
2995 | } |
2087 | |
2996 | |
2088 | void inline_size |
2997 | inline_size void |
|
|
2998 | check_2625 (EV_P) |
|
|
2999 | { |
|
|
3000 | /* kernels < 2.6.25 are borked |
|
|
3001 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3002 | */ |
|
|
3003 | struct utsname buf; |
|
|
3004 | int major, minor, micro; |
|
|
3005 | |
|
|
3006 | if (uname (&buf)) |
|
|
3007 | return; |
|
|
3008 | |
|
|
3009 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
3010 | return; |
|
|
3011 | |
|
|
3012 | if (major < 2 |
|
|
3013 | || (major == 2 && minor < 6) |
|
|
3014 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
3015 | return; |
|
|
3016 | |
|
|
3017 | fs_2625 = 1; |
|
|
3018 | } |
|
|
3019 | |
|
|
3020 | inline_size int |
|
|
3021 | infy_newfd (void) |
|
|
3022 | { |
|
|
3023 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3024 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3025 | if (fd >= 0) |
|
|
3026 | return fd; |
|
|
3027 | #endif |
|
|
3028 | return inotify_init (); |
|
|
3029 | } |
|
|
3030 | |
|
|
3031 | inline_size void |
2089 | infy_init (EV_P) |
3032 | infy_init (EV_P) |
2090 | { |
3033 | { |
2091 | if (fs_fd != -2) |
3034 | if (fs_fd != -2) |
2092 | return; |
3035 | return; |
2093 | |
3036 | |
|
|
3037 | fs_fd = -1; |
|
|
3038 | |
|
|
3039 | check_2625 (EV_A); |
|
|
3040 | |
2094 | fs_fd = inotify_init (); |
3041 | fs_fd = infy_newfd (); |
2095 | |
3042 | |
2096 | if (fs_fd >= 0) |
3043 | if (fs_fd >= 0) |
2097 | { |
3044 | { |
|
|
3045 | fd_intern (fs_fd); |
2098 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3046 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2099 | ev_set_priority (&fs_w, EV_MAXPRI); |
3047 | ev_set_priority (&fs_w, EV_MAXPRI); |
2100 | ev_io_start (EV_A_ &fs_w); |
3048 | ev_io_start (EV_A_ &fs_w); |
|
|
3049 | ev_unref (EV_A); |
2101 | } |
3050 | } |
2102 | } |
3051 | } |
2103 | |
3052 | |
2104 | void inline_size |
3053 | inline_size void |
2105 | infy_fork (EV_P) |
3054 | infy_fork (EV_P) |
2106 | { |
3055 | { |
2107 | int slot; |
3056 | int slot; |
2108 | |
3057 | |
2109 | if (fs_fd < 0) |
3058 | if (fs_fd < 0) |
2110 | return; |
3059 | return; |
2111 | |
3060 | |
|
|
3061 | ev_ref (EV_A); |
|
|
3062 | ev_io_stop (EV_A_ &fs_w); |
2112 | close (fs_fd); |
3063 | close (fs_fd); |
2113 | fs_fd = inotify_init (); |
3064 | fs_fd = infy_newfd (); |
|
|
3065 | |
|
|
3066 | if (fs_fd >= 0) |
|
|
3067 | { |
|
|
3068 | fd_intern (fs_fd); |
|
|
3069 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3070 | ev_io_start (EV_A_ &fs_w); |
|
|
3071 | ev_unref (EV_A); |
|
|
3072 | } |
2114 | |
3073 | |
2115 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3074 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2116 | { |
3075 | { |
2117 | WL w_ = fs_hash [slot].head; |
3076 | WL w_ = fs_hash [slot].head; |
2118 | fs_hash [slot].head = 0; |
3077 | fs_hash [slot].head = 0; |
… | |
… | |
2125 | w->wd = -1; |
3084 | w->wd = -1; |
2126 | |
3085 | |
2127 | if (fs_fd >= 0) |
3086 | if (fs_fd >= 0) |
2128 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3087 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2129 | else |
3088 | else |
|
|
3089 | { |
|
|
3090 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3091 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2130 | ev_timer_start (EV_A_ &w->timer); |
3092 | ev_timer_again (EV_A_ &w->timer); |
|
|
3093 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3094 | } |
2131 | } |
3095 | } |
2132 | |
|
|
2133 | } |
3096 | } |
2134 | } |
3097 | } |
2135 | |
3098 | |
|
|
3099 | #endif |
|
|
3100 | |
|
|
3101 | #ifdef _WIN32 |
|
|
3102 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3103 | #else |
|
|
3104 | # define EV_LSTAT(p,b) lstat (p, b) |
2136 | #endif |
3105 | #endif |
2137 | |
3106 | |
2138 | void |
3107 | void |
2139 | ev_stat_stat (EV_P_ ev_stat *w) |
3108 | ev_stat_stat (EV_P_ ev_stat *w) |
2140 | { |
3109 | { |
… | |
… | |
2147 | static void noinline |
3116 | static void noinline |
2148 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3117 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2149 | { |
3118 | { |
2150 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3119 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2151 | |
3120 | |
2152 | /* we copy this here each the time so that */ |
3121 | ev_statdata prev = w->attr; |
2153 | /* prev has the old value when the callback gets invoked */ |
|
|
2154 | w->prev = w->attr; |
|
|
2155 | ev_stat_stat (EV_A_ w); |
3122 | ev_stat_stat (EV_A_ w); |
2156 | |
3123 | |
2157 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3124 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2158 | if ( |
3125 | if ( |
2159 | w->prev.st_dev != w->attr.st_dev |
3126 | prev.st_dev != w->attr.st_dev |
2160 | || w->prev.st_ino != w->attr.st_ino |
3127 | || prev.st_ino != w->attr.st_ino |
2161 | || w->prev.st_mode != w->attr.st_mode |
3128 | || prev.st_mode != w->attr.st_mode |
2162 | || w->prev.st_nlink != w->attr.st_nlink |
3129 | || prev.st_nlink != w->attr.st_nlink |
2163 | || w->prev.st_uid != w->attr.st_uid |
3130 | || prev.st_uid != w->attr.st_uid |
2164 | || w->prev.st_gid != w->attr.st_gid |
3131 | || prev.st_gid != w->attr.st_gid |
2165 | || w->prev.st_rdev != w->attr.st_rdev |
3132 | || prev.st_rdev != w->attr.st_rdev |
2166 | || w->prev.st_size != w->attr.st_size |
3133 | || prev.st_size != w->attr.st_size |
2167 | || w->prev.st_atime != w->attr.st_atime |
3134 | || prev.st_atime != w->attr.st_atime |
2168 | || w->prev.st_mtime != w->attr.st_mtime |
3135 | || prev.st_mtime != w->attr.st_mtime |
2169 | || w->prev.st_ctime != w->attr.st_ctime |
3136 | || prev.st_ctime != w->attr.st_ctime |
2170 | ) { |
3137 | ) { |
|
|
3138 | /* we only update w->prev on actual differences */ |
|
|
3139 | /* in case we test more often than invoke the callback, */ |
|
|
3140 | /* to ensure that prev is always different to attr */ |
|
|
3141 | w->prev = prev; |
|
|
3142 | |
2171 | #if EV_USE_INOTIFY |
3143 | #if EV_USE_INOTIFY |
|
|
3144 | if (fs_fd >= 0) |
|
|
3145 | { |
2172 | infy_del (EV_A_ w); |
3146 | infy_del (EV_A_ w); |
2173 | infy_add (EV_A_ w); |
3147 | infy_add (EV_A_ w); |
2174 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3148 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3149 | } |
2175 | #endif |
3150 | #endif |
2176 | |
3151 | |
2177 | ev_feed_event (EV_A_ w, EV_STAT); |
3152 | ev_feed_event (EV_A_ w, EV_STAT); |
2178 | } |
3153 | } |
2179 | } |
3154 | } |
… | |
… | |
2182 | ev_stat_start (EV_P_ ev_stat *w) |
3157 | ev_stat_start (EV_P_ ev_stat *w) |
2183 | { |
3158 | { |
2184 | if (expect_false (ev_is_active (w))) |
3159 | if (expect_false (ev_is_active (w))) |
2185 | return; |
3160 | return; |
2186 | |
3161 | |
2187 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2188 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2189 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2190 | |
|
|
2191 | ev_stat_stat (EV_A_ w); |
3162 | ev_stat_stat (EV_A_ w); |
2192 | |
3163 | |
|
|
3164 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2193 | if (w->interval < MIN_STAT_INTERVAL) |
3165 | w->interval = MIN_STAT_INTERVAL; |
2194 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2195 | |
3166 | |
2196 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3167 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2197 | ev_set_priority (&w->timer, ev_priority (w)); |
3168 | ev_set_priority (&w->timer, ev_priority (w)); |
2198 | |
3169 | |
2199 | #if EV_USE_INOTIFY |
3170 | #if EV_USE_INOTIFY |
2200 | infy_init (EV_A); |
3171 | infy_init (EV_A); |
2201 | |
3172 | |
2202 | if (fs_fd >= 0) |
3173 | if (fs_fd >= 0) |
2203 | infy_add (EV_A_ w); |
3174 | infy_add (EV_A_ w); |
2204 | else |
3175 | else |
2205 | #endif |
3176 | #endif |
|
|
3177 | { |
2206 | ev_timer_start (EV_A_ &w->timer); |
3178 | ev_timer_again (EV_A_ &w->timer); |
|
|
3179 | ev_unref (EV_A); |
|
|
3180 | } |
2207 | |
3181 | |
2208 | ev_start (EV_A_ (W)w, 1); |
3182 | ev_start (EV_A_ (W)w, 1); |
|
|
3183 | |
|
|
3184 | EV_FREQUENT_CHECK; |
2209 | } |
3185 | } |
2210 | |
3186 | |
2211 | void |
3187 | void |
2212 | ev_stat_stop (EV_P_ ev_stat *w) |
3188 | ev_stat_stop (EV_P_ ev_stat *w) |
2213 | { |
3189 | { |
2214 | clear_pending (EV_A_ (W)w); |
3190 | clear_pending (EV_A_ (W)w); |
2215 | if (expect_false (!ev_is_active (w))) |
3191 | if (expect_false (!ev_is_active (w))) |
2216 | return; |
3192 | return; |
2217 | |
3193 | |
|
|
3194 | EV_FREQUENT_CHECK; |
|
|
3195 | |
2218 | #if EV_USE_INOTIFY |
3196 | #if EV_USE_INOTIFY |
2219 | infy_del (EV_A_ w); |
3197 | infy_del (EV_A_ w); |
2220 | #endif |
3198 | #endif |
|
|
3199 | |
|
|
3200 | if (ev_is_active (&w->timer)) |
|
|
3201 | { |
|
|
3202 | ev_ref (EV_A); |
2221 | ev_timer_stop (EV_A_ &w->timer); |
3203 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3204 | } |
2222 | |
3205 | |
2223 | ev_stop (EV_A_ (W)w); |
3206 | ev_stop (EV_A_ (W)w); |
|
|
3207 | |
|
|
3208 | EV_FREQUENT_CHECK; |
2224 | } |
3209 | } |
2225 | #endif |
3210 | #endif |
2226 | |
3211 | |
2227 | #if EV_IDLE_ENABLE |
3212 | #if EV_IDLE_ENABLE |
2228 | void |
3213 | void |
… | |
… | |
2230 | { |
3215 | { |
2231 | if (expect_false (ev_is_active (w))) |
3216 | if (expect_false (ev_is_active (w))) |
2232 | return; |
3217 | return; |
2233 | |
3218 | |
2234 | pri_adjust (EV_A_ (W)w); |
3219 | pri_adjust (EV_A_ (W)w); |
|
|
3220 | |
|
|
3221 | EV_FREQUENT_CHECK; |
2235 | |
3222 | |
2236 | { |
3223 | { |
2237 | int active = ++idlecnt [ABSPRI (w)]; |
3224 | int active = ++idlecnt [ABSPRI (w)]; |
2238 | |
3225 | |
2239 | ++idleall; |
3226 | ++idleall; |
2240 | ev_start (EV_A_ (W)w, active); |
3227 | ev_start (EV_A_ (W)w, active); |
2241 | |
3228 | |
2242 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3229 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2243 | idles [ABSPRI (w)][active - 1] = w; |
3230 | idles [ABSPRI (w)][active - 1] = w; |
2244 | } |
3231 | } |
|
|
3232 | |
|
|
3233 | EV_FREQUENT_CHECK; |
2245 | } |
3234 | } |
2246 | |
3235 | |
2247 | void |
3236 | void |
2248 | ev_idle_stop (EV_P_ ev_idle *w) |
3237 | ev_idle_stop (EV_P_ ev_idle *w) |
2249 | { |
3238 | { |
2250 | clear_pending (EV_A_ (W)w); |
3239 | clear_pending (EV_A_ (W)w); |
2251 | if (expect_false (!ev_is_active (w))) |
3240 | if (expect_false (!ev_is_active (w))) |
2252 | return; |
3241 | return; |
2253 | |
3242 | |
|
|
3243 | EV_FREQUENT_CHECK; |
|
|
3244 | |
2254 | { |
3245 | { |
2255 | int active = ((W)w)->active; |
3246 | int active = ev_active (w); |
2256 | |
3247 | |
2257 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3248 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2258 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3249 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2259 | |
3250 | |
2260 | ev_stop (EV_A_ (W)w); |
3251 | ev_stop (EV_A_ (W)w); |
2261 | --idleall; |
3252 | --idleall; |
2262 | } |
3253 | } |
|
|
3254 | |
|
|
3255 | EV_FREQUENT_CHECK; |
2263 | } |
3256 | } |
2264 | #endif |
3257 | #endif |
2265 | |
3258 | |
2266 | void |
3259 | void |
2267 | ev_prepare_start (EV_P_ ev_prepare *w) |
3260 | ev_prepare_start (EV_P_ ev_prepare *w) |
2268 | { |
3261 | { |
2269 | if (expect_false (ev_is_active (w))) |
3262 | if (expect_false (ev_is_active (w))) |
2270 | return; |
3263 | return; |
|
|
3264 | |
|
|
3265 | EV_FREQUENT_CHECK; |
2271 | |
3266 | |
2272 | ev_start (EV_A_ (W)w, ++preparecnt); |
3267 | ev_start (EV_A_ (W)w, ++preparecnt); |
2273 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3268 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2274 | prepares [preparecnt - 1] = w; |
3269 | prepares [preparecnt - 1] = w; |
|
|
3270 | |
|
|
3271 | EV_FREQUENT_CHECK; |
2275 | } |
3272 | } |
2276 | |
3273 | |
2277 | void |
3274 | void |
2278 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3275 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2279 | { |
3276 | { |
2280 | clear_pending (EV_A_ (W)w); |
3277 | clear_pending (EV_A_ (W)w); |
2281 | if (expect_false (!ev_is_active (w))) |
3278 | if (expect_false (!ev_is_active (w))) |
2282 | return; |
3279 | return; |
2283 | |
3280 | |
|
|
3281 | EV_FREQUENT_CHECK; |
|
|
3282 | |
2284 | { |
3283 | { |
2285 | int active = ((W)w)->active; |
3284 | int active = ev_active (w); |
|
|
3285 | |
2286 | prepares [active - 1] = prepares [--preparecnt]; |
3286 | prepares [active - 1] = prepares [--preparecnt]; |
2287 | ((W)prepares [active - 1])->active = active; |
3287 | ev_active (prepares [active - 1]) = active; |
2288 | } |
3288 | } |
2289 | |
3289 | |
2290 | ev_stop (EV_A_ (W)w); |
3290 | ev_stop (EV_A_ (W)w); |
|
|
3291 | |
|
|
3292 | EV_FREQUENT_CHECK; |
2291 | } |
3293 | } |
2292 | |
3294 | |
2293 | void |
3295 | void |
2294 | ev_check_start (EV_P_ ev_check *w) |
3296 | ev_check_start (EV_P_ ev_check *w) |
2295 | { |
3297 | { |
2296 | if (expect_false (ev_is_active (w))) |
3298 | if (expect_false (ev_is_active (w))) |
2297 | return; |
3299 | return; |
|
|
3300 | |
|
|
3301 | EV_FREQUENT_CHECK; |
2298 | |
3302 | |
2299 | ev_start (EV_A_ (W)w, ++checkcnt); |
3303 | ev_start (EV_A_ (W)w, ++checkcnt); |
2300 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3304 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2301 | checks [checkcnt - 1] = w; |
3305 | checks [checkcnt - 1] = w; |
|
|
3306 | |
|
|
3307 | EV_FREQUENT_CHECK; |
2302 | } |
3308 | } |
2303 | |
3309 | |
2304 | void |
3310 | void |
2305 | ev_check_stop (EV_P_ ev_check *w) |
3311 | ev_check_stop (EV_P_ ev_check *w) |
2306 | { |
3312 | { |
2307 | clear_pending (EV_A_ (W)w); |
3313 | clear_pending (EV_A_ (W)w); |
2308 | if (expect_false (!ev_is_active (w))) |
3314 | if (expect_false (!ev_is_active (w))) |
2309 | return; |
3315 | return; |
2310 | |
3316 | |
|
|
3317 | EV_FREQUENT_CHECK; |
|
|
3318 | |
2311 | { |
3319 | { |
2312 | int active = ((W)w)->active; |
3320 | int active = ev_active (w); |
|
|
3321 | |
2313 | checks [active - 1] = checks [--checkcnt]; |
3322 | checks [active - 1] = checks [--checkcnt]; |
2314 | ((W)checks [active - 1])->active = active; |
3323 | ev_active (checks [active - 1]) = active; |
2315 | } |
3324 | } |
2316 | |
3325 | |
2317 | ev_stop (EV_A_ (W)w); |
3326 | ev_stop (EV_A_ (W)w); |
|
|
3327 | |
|
|
3328 | EV_FREQUENT_CHECK; |
2318 | } |
3329 | } |
2319 | |
3330 | |
2320 | #if EV_EMBED_ENABLE |
3331 | #if EV_EMBED_ENABLE |
2321 | void noinline |
3332 | void noinline |
2322 | ev_embed_sweep (EV_P_ ev_embed *w) |
3333 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2339 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3350 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2340 | { |
3351 | { |
2341 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3352 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2342 | |
3353 | |
2343 | { |
3354 | { |
2344 | struct ev_loop *loop = w->other; |
3355 | EV_P = w->other; |
2345 | |
3356 | |
2346 | while (fdchangecnt) |
3357 | while (fdchangecnt) |
2347 | { |
3358 | { |
2348 | fd_reify (EV_A); |
3359 | fd_reify (EV_A); |
2349 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3360 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2350 | } |
3361 | } |
2351 | } |
3362 | } |
2352 | } |
3363 | } |
2353 | |
3364 | |
|
|
3365 | static void |
|
|
3366 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3367 | { |
|
|
3368 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3369 | |
|
|
3370 | ev_embed_stop (EV_A_ w); |
|
|
3371 | |
|
|
3372 | { |
|
|
3373 | EV_P = w->other; |
|
|
3374 | |
|
|
3375 | ev_loop_fork (EV_A); |
|
|
3376 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3377 | } |
|
|
3378 | |
|
|
3379 | ev_embed_start (EV_A_ w); |
|
|
3380 | } |
|
|
3381 | |
2354 | #if 0 |
3382 | #if 0 |
2355 | static void |
3383 | static void |
2356 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3384 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2357 | { |
3385 | { |
2358 | ev_idle_stop (EV_A_ idle); |
3386 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2364 | { |
3392 | { |
2365 | if (expect_false (ev_is_active (w))) |
3393 | if (expect_false (ev_is_active (w))) |
2366 | return; |
3394 | return; |
2367 | |
3395 | |
2368 | { |
3396 | { |
2369 | struct ev_loop *loop = w->other; |
3397 | EV_P = w->other; |
2370 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3398 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2371 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3399 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2372 | } |
3400 | } |
|
|
3401 | |
|
|
3402 | EV_FREQUENT_CHECK; |
2373 | |
3403 | |
2374 | ev_set_priority (&w->io, ev_priority (w)); |
3404 | ev_set_priority (&w->io, ev_priority (w)); |
2375 | ev_io_start (EV_A_ &w->io); |
3405 | ev_io_start (EV_A_ &w->io); |
2376 | |
3406 | |
2377 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3407 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2378 | ev_set_priority (&w->prepare, EV_MINPRI); |
3408 | ev_set_priority (&w->prepare, EV_MINPRI); |
2379 | ev_prepare_start (EV_A_ &w->prepare); |
3409 | ev_prepare_start (EV_A_ &w->prepare); |
2380 | |
3410 | |
|
|
3411 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3412 | ev_fork_start (EV_A_ &w->fork); |
|
|
3413 | |
2381 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3414 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2382 | |
3415 | |
2383 | ev_start (EV_A_ (W)w, 1); |
3416 | ev_start (EV_A_ (W)w, 1); |
|
|
3417 | |
|
|
3418 | EV_FREQUENT_CHECK; |
2384 | } |
3419 | } |
2385 | |
3420 | |
2386 | void |
3421 | void |
2387 | ev_embed_stop (EV_P_ ev_embed *w) |
3422 | ev_embed_stop (EV_P_ ev_embed *w) |
2388 | { |
3423 | { |
2389 | clear_pending (EV_A_ (W)w); |
3424 | clear_pending (EV_A_ (W)w); |
2390 | if (expect_false (!ev_is_active (w))) |
3425 | if (expect_false (!ev_is_active (w))) |
2391 | return; |
3426 | return; |
2392 | |
3427 | |
|
|
3428 | EV_FREQUENT_CHECK; |
|
|
3429 | |
2393 | ev_io_stop (EV_A_ &w->io); |
3430 | ev_io_stop (EV_A_ &w->io); |
2394 | ev_prepare_stop (EV_A_ &w->prepare); |
3431 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3432 | ev_fork_stop (EV_A_ &w->fork); |
2395 | |
3433 | |
2396 | ev_stop (EV_A_ (W)w); |
3434 | ev_stop (EV_A_ (W)w); |
|
|
3435 | |
|
|
3436 | EV_FREQUENT_CHECK; |
2397 | } |
3437 | } |
2398 | #endif |
3438 | #endif |
2399 | |
3439 | |
2400 | #if EV_FORK_ENABLE |
3440 | #if EV_FORK_ENABLE |
2401 | void |
3441 | void |
2402 | ev_fork_start (EV_P_ ev_fork *w) |
3442 | ev_fork_start (EV_P_ ev_fork *w) |
2403 | { |
3443 | { |
2404 | if (expect_false (ev_is_active (w))) |
3444 | if (expect_false (ev_is_active (w))) |
2405 | return; |
3445 | return; |
|
|
3446 | |
|
|
3447 | EV_FREQUENT_CHECK; |
2406 | |
3448 | |
2407 | ev_start (EV_A_ (W)w, ++forkcnt); |
3449 | ev_start (EV_A_ (W)w, ++forkcnt); |
2408 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3450 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2409 | forks [forkcnt - 1] = w; |
3451 | forks [forkcnt - 1] = w; |
|
|
3452 | |
|
|
3453 | EV_FREQUENT_CHECK; |
2410 | } |
3454 | } |
2411 | |
3455 | |
2412 | void |
3456 | void |
2413 | ev_fork_stop (EV_P_ ev_fork *w) |
3457 | ev_fork_stop (EV_P_ ev_fork *w) |
2414 | { |
3458 | { |
2415 | clear_pending (EV_A_ (W)w); |
3459 | clear_pending (EV_A_ (W)w); |
2416 | if (expect_false (!ev_is_active (w))) |
3460 | if (expect_false (!ev_is_active (w))) |
2417 | return; |
3461 | return; |
2418 | |
3462 | |
|
|
3463 | EV_FREQUENT_CHECK; |
|
|
3464 | |
2419 | { |
3465 | { |
2420 | int active = ((W)w)->active; |
3466 | int active = ev_active (w); |
|
|
3467 | |
2421 | forks [active - 1] = forks [--forkcnt]; |
3468 | forks [active - 1] = forks [--forkcnt]; |
2422 | ((W)forks [active - 1])->active = active; |
3469 | ev_active (forks [active - 1]) = active; |
2423 | } |
3470 | } |
2424 | |
3471 | |
2425 | ev_stop (EV_A_ (W)w); |
3472 | ev_stop (EV_A_ (W)w); |
|
|
3473 | |
|
|
3474 | EV_FREQUENT_CHECK; |
2426 | } |
3475 | } |
2427 | #endif |
3476 | #endif |
2428 | |
3477 | |
2429 | #if EV_ASYNC_ENABLE |
3478 | #if EV_ASYNC_ENABLE |
2430 | void |
3479 | void |
… | |
… | |
2432 | { |
3481 | { |
2433 | if (expect_false (ev_is_active (w))) |
3482 | if (expect_false (ev_is_active (w))) |
2434 | return; |
3483 | return; |
2435 | |
3484 | |
2436 | evpipe_init (EV_A); |
3485 | evpipe_init (EV_A); |
|
|
3486 | |
|
|
3487 | EV_FREQUENT_CHECK; |
2437 | |
3488 | |
2438 | ev_start (EV_A_ (W)w, ++asynccnt); |
3489 | ev_start (EV_A_ (W)w, ++asynccnt); |
2439 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
3490 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
2440 | asyncs [asynccnt - 1] = w; |
3491 | asyncs [asynccnt - 1] = w; |
|
|
3492 | |
|
|
3493 | EV_FREQUENT_CHECK; |
2441 | } |
3494 | } |
2442 | |
3495 | |
2443 | void |
3496 | void |
2444 | ev_async_stop (EV_P_ ev_async *w) |
3497 | ev_async_stop (EV_P_ ev_async *w) |
2445 | { |
3498 | { |
2446 | clear_pending (EV_A_ (W)w); |
3499 | clear_pending (EV_A_ (W)w); |
2447 | if (expect_false (!ev_is_active (w))) |
3500 | if (expect_false (!ev_is_active (w))) |
2448 | return; |
3501 | return; |
2449 | |
3502 | |
|
|
3503 | EV_FREQUENT_CHECK; |
|
|
3504 | |
2450 | { |
3505 | { |
2451 | int active = ((W)w)->active; |
3506 | int active = ev_active (w); |
|
|
3507 | |
2452 | asyncs [active - 1] = asyncs [--asynccnt]; |
3508 | asyncs [active - 1] = asyncs [--asynccnt]; |
2453 | ((W)asyncs [active - 1])->active = active; |
3509 | ev_active (asyncs [active - 1]) = active; |
2454 | } |
3510 | } |
2455 | |
3511 | |
2456 | ev_stop (EV_A_ (W)w); |
3512 | ev_stop (EV_A_ (W)w); |
|
|
3513 | |
|
|
3514 | EV_FREQUENT_CHECK; |
2457 | } |
3515 | } |
2458 | |
3516 | |
2459 | void |
3517 | void |
2460 | ev_async_send (EV_P_ ev_async *w) |
3518 | ev_async_send (EV_P_ ev_async *w) |
2461 | { |
3519 | { |
2462 | w->sent = 1; |
3520 | w->sent = 1; |
2463 | evpipe_write (EV_A_ 0, 1); |
3521 | evpipe_write (EV_A_ &async_pending); |
2464 | } |
3522 | } |
2465 | #endif |
3523 | #endif |
2466 | |
3524 | |
2467 | /*****************************************************************************/ |
3525 | /*****************************************************************************/ |
2468 | |
3526 | |
… | |
… | |
2478 | once_cb (EV_P_ struct ev_once *once, int revents) |
3536 | once_cb (EV_P_ struct ev_once *once, int revents) |
2479 | { |
3537 | { |
2480 | void (*cb)(int revents, void *arg) = once->cb; |
3538 | void (*cb)(int revents, void *arg) = once->cb; |
2481 | void *arg = once->arg; |
3539 | void *arg = once->arg; |
2482 | |
3540 | |
2483 | ev_io_stop (EV_A_ &once->io); |
3541 | ev_io_stop (EV_A_ &once->io); |
2484 | ev_timer_stop (EV_A_ &once->to); |
3542 | ev_timer_stop (EV_A_ &once->to); |
2485 | ev_free (once); |
3543 | ev_free (once); |
2486 | |
3544 | |
2487 | cb (revents, arg); |
3545 | cb (revents, arg); |
2488 | } |
3546 | } |
2489 | |
3547 | |
2490 | static void |
3548 | static void |
2491 | once_cb_io (EV_P_ ev_io *w, int revents) |
3549 | once_cb_io (EV_P_ ev_io *w, int revents) |
2492 | { |
3550 | { |
2493 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3551 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3552 | |
|
|
3553 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2494 | } |
3554 | } |
2495 | |
3555 | |
2496 | static void |
3556 | static void |
2497 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3557 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2498 | { |
3558 | { |
2499 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3559 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3560 | |
|
|
3561 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2500 | } |
3562 | } |
2501 | |
3563 | |
2502 | void |
3564 | void |
2503 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3565 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2504 | { |
3566 | { |
… | |
… | |
2526 | ev_timer_set (&once->to, timeout, 0.); |
3588 | ev_timer_set (&once->to, timeout, 0.); |
2527 | ev_timer_start (EV_A_ &once->to); |
3589 | ev_timer_start (EV_A_ &once->to); |
2528 | } |
3590 | } |
2529 | } |
3591 | } |
2530 | |
3592 | |
|
|
3593 | /*****************************************************************************/ |
|
|
3594 | |
|
|
3595 | #if EV_WALK_ENABLE |
|
|
3596 | void |
|
|
3597 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3598 | { |
|
|
3599 | int i, j; |
|
|
3600 | ev_watcher_list *wl, *wn; |
|
|
3601 | |
|
|
3602 | if (types & (EV_IO | EV_EMBED)) |
|
|
3603 | for (i = 0; i < anfdmax; ++i) |
|
|
3604 | for (wl = anfds [i].head; wl; ) |
|
|
3605 | { |
|
|
3606 | wn = wl->next; |
|
|
3607 | |
|
|
3608 | #if EV_EMBED_ENABLE |
|
|
3609 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3610 | { |
|
|
3611 | if (types & EV_EMBED) |
|
|
3612 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3613 | } |
|
|
3614 | else |
|
|
3615 | #endif |
|
|
3616 | #if EV_USE_INOTIFY |
|
|
3617 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3618 | ; |
|
|
3619 | else |
|
|
3620 | #endif |
|
|
3621 | if ((ev_io *)wl != &pipe_w) |
|
|
3622 | if (types & EV_IO) |
|
|
3623 | cb (EV_A_ EV_IO, wl); |
|
|
3624 | |
|
|
3625 | wl = wn; |
|
|
3626 | } |
|
|
3627 | |
|
|
3628 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3629 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3630 | #if EV_STAT_ENABLE |
|
|
3631 | /*TODO: timer is not always active*/ |
|
|
3632 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3633 | { |
|
|
3634 | if (types & EV_STAT) |
|
|
3635 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3636 | } |
|
|
3637 | else |
|
|
3638 | #endif |
|
|
3639 | if (types & EV_TIMER) |
|
|
3640 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3641 | |
|
|
3642 | #if EV_PERIODIC_ENABLE |
|
|
3643 | if (types & EV_PERIODIC) |
|
|
3644 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3645 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3646 | #endif |
|
|
3647 | |
|
|
3648 | #if EV_IDLE_ENABLE |
|
|
3649 | if (types & EV_IDLE) |
|
|
3650 | for (j = NUMPRI; i--; ) |
|
|
3651 | for (i = idlecnt [j]; i--; ) |
|
|
3652 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3653 | #endif |
|
|
3654 | |
|
|
3655 | #if EV_FORK_ENABLE |
|
|
3656 | if (types & EV_FORK) |
|
|
3657 | for (i = forkcnt; i--; ) |
|
|
3658 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3659 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3660 | #endif |
|
|
3661 | |
|
|
3662 | #if EV_ASYNC_ENABLE |
|
|
3663 | if (types & EV_ASYNC) |
|
|
3664 | for (i = asynccnt; i--; ) |
|
|
3665 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3666 | #endif |
|
|
3667 | |
|
|
3668 | if (types & EV_PREPARE) |
|
|
3669 | for (i = preparecnt; i--; ) |
|
|
3670 | #if EV_EMBED_ENABLE |
|
|
3671 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3672 | #endif |
|
|
3673 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3674 | |
|
|
3675 | if (types & EV_CHECK) |
|
|
3676 | for (i = checkcnt; i--; ) |
|
|
3677 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3678 | |
|
|
3679 | if (types & EV_SIGNAL) |
|
|
3680 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3681 | for (wl = signals [i].head; wl; ) |
|
|
3682 | { |
|
|
3683 | wn = wl->next; |
|
|
3684 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3685 | wl = wn; |
|
|
3686 | } |
|
|
3687 | |
|
|
3688 | if (types & EV_CHILD) |
|
|
3689 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3690 | for (wl = childs [i]; wl; ) |
|
|
3691 | { |
|
|
3692 | wn = wl->next; |
|
|
3693 | cb (EV_A_ EV_CHILD, wl); |
|
|
3694 | wl = wn; |
|
|
3695 | } |
|
|
3696 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3697 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3698 | } |
|
|
3699 | #endif |
|
|
3700 | |
2531 | #if EV_MULTIPLICITY |
3701 | #if EV_MULTIPLICITY |
2532 | #include "ev_wrap.h" |
3702 | #include "ev_wrap.h" |
2533 | #endif |
3703 | #endif |
2534 | |
3704 | |
2535 | #ifdef __cplusplus |
3705 | #ifdef __cplusplus |