1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 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 sig_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) |
320 | syserr_cb (msg); |
544 | syserr_cb (msg); |
321 | else |
545 | else |
322 | { |
546 | { |
|
|
547 | #if EV_AVOID_STDIO |
|
|
548 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
549 | write (STDERR_FILENO, ": ", 2); |
|
|
550 | msg = strerror (errno); |
|
|
551 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
552 | write (STDERR_FILENO, "\n", 1); |
|
|
553 | #else |
323 | perror (msg); |
554 | perror (msg); |
|
|
555 | #endif |
324 | abort (); |
556 | abort (); |
325 | } |
557 | } |
326 | } |
558 | } |
327 | |
559 | |
|
|
560 | static void * |
|
|
561 | ev_realloc_emul (void *ptr, long size) |
|
|
562 | { |
|
|
563 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
564 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
565 | * the single unix specification, so work around them here. |
|
|
566 | */ |
|
|
567 | |
|
|
568 | if (size) |
|
|
569 | return realloc (ptr, size); |
|
|
570 | |
|
|
571 | free (ptr); |
|
|
572 | return 0; |
|
|
573 | } |
|
|
574 | |
328 | static void *(*alloc)(void *ptr, long size); |
575 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
329 | |
576 | |
330 | void |
577 | void |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
578 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
332 | { |
579 | { |
333 | alloc = cb; |
580 | alloc = cb; |
334 | } |
581 | } |
335 | |
582 | |
336 | inline_speed void * |
583 | inline_speed void * |
337 | ev_realloc (void *ptr, long size) |
584 | ev_realloc (void *ptr, long size) |
338 | { |
585 | { |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
586 | ptr = alloc (ptr, size); |
340 | |
587 | |
341 | if (!ptr && size) |
588 | if (!ptr && size) |
342 | { |
589 | { |
|
|
590 | #if EV_AVOID_STDIO |
|
|
591 | write (STDERR_FILENO, "libev: memory allocation failed, aborting.", |
|
|
592 | sizeof ("libev: memory allocation failed, aborting.") - 1); |
|
|
593 | #else |
343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
594 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
595 | #endif |
344 | abort (); |
596 | abort (); |
345 | } |
597 | } |
346 | |
598 | |
347 | return ptr; |
599 | return ptr; |
348 | } |
600 | } |
… | |
… | |
350 | #define ev_malloc(size) ev_realloc (0, (size)) |
602 | #define ev_malloc(size) ev_realloc (0, (size)) |
351 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
603 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
352 | |
604 | |
353 | /*****************************************************************************/ |
605 | /*****************************************************************************/ |
354 | |
606 | |
|
|
607 | /* set in reify when reification needed */ |
|
|
608 | #define EV_ANFD_REIFY 1 |
|
|
609 | |
|
|
610 | /* file descriptor info structure */ |
355 | typedef struct |
611 | typedef struct |
356 | { |
612 | { |
357 | WL head; |
613 | WL head; |
358 | unsigned char events; |
614 | unsigned char events; /* the events watched for */ |
|
|
615 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
616 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
359 | unsigned char reify; |
617 | unsigned char unused; |
|
|
618 | #if EV_USE_EPOLL |
|
|
619 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
620 | #endif |
360 | #if EV_SELECT_IS_WINSOCKET |
621 | #if EV_SELECT_IS_WINSOCKET |
361 | SOCKET handle; |
622 | SOCKET handle; |
362 | #endif |
623 | #endif |
363 | } ANFD; |
624 | } ANFD; |
364 | |
625 | |
|
|
626 | /* stores the pending event set for a given watcher */ |
365 | typedef struct |
627 | typedef struct |
366 | { |
628 | { |
367 | W w; |
629 | W w; |
368 | int events; |
630 | int events; /* the pending event set for the given watcher */ |
369 | } ANPENDING; |
631 | } ANPENDING; |
370 | |
632 | |
371 | #if EV_USE_INOTIFY |
633 | #if EV_USE_INOTIFY |
|
|
634 | /* hash table entry per inotify-id */ |
372 | typedef struct |
635 | typedef struct |
373 | { |
636 | { |
374 | WL head; |
637 | WL head; |
375 | } ANFS; |
638 | } ANFS; |
|
|
639 | #endif |
|
|
640 | |
|
|
641 | /* Heap Entry */ |
|
|
642 | #if EV_HEAP_CACHE_AT |
|
|
643 | /* a heap element */ |
|
|
644 | typedef struct { |
|
|
645 | ev_tstamp at; |
|
|
646 | WT w; |
|
|
647 | } ANHE; |
|
|
648 | |
|
|
649 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
650 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
651 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
652 | #else |
|
|
653 | /* a heap element */ |
|
|
654 | typedef WT ANHE; |
|
|
655 | |
|
|
656 | #define ANHE_w(he) (he) |
|
|
657 | #define ANHE_at(he) (he)->at |
|
|
658 | #define ANHE_at_cache(he) |
376 | #endif |
659 | #endif |
377 | |
660 | |
378 | #if EV_MULTIPLICITY |
661 | #if EV_MULTIPLICITY |
379 | |
662 | |
380 | struct ev_loop |
663 | struct ev_loop |
… | |
… | |
399 | |
682 | |
400 | static int ev_default_loop_ptr; |
683 | static int ev_default_loop_ptr; |
401 | |
684 | |
402 | #endif |
685 | #endif |
403 | |
686 | |
|
|
687 | #if EV_MINIMAL < 2 |
|
|
688 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
689 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
690 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
691 | #else |
|
|
692 | # define EV_RELEASE_CB (void)0 |
|
|
693 | # define EV_ACQUIRE_CB (void)0 |
|
|
694 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
695 | #endif |
|
|
696 | |
|
|
697 | #define EVUNLOOP_RECURSE 0x80 |
|
|
698 | |
404 | /*****************************************************************************/ |
699 | /*****************************************************************************/ |
405 | |
700 | |
|
|
701 | #ifndef EV_HAVE_EV_TIME |
406 | ev_tstamp |
702 | ev_tstamp |
407 | ev_time (void) |
703 | ev_time (void) |
408 | { |
704 | { |
409 | #if EV_USE_REALTIME |
705 | #if EV_USE_REALTIME |
|
|
706 | if (expect_true (have_realtime)) |
|
|
707 | { |
410 | struct timespec ts; |
708 | struct timespec ts; |
411 | clock_gettime (CLOCK_REALTIME, &ts); |
709 | clock_gettime (CLOCK_REALTIME, &ts); |
412 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
710 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
413 | #else |
711 | } |
|
|
712 | #endif |
|
|
713 | |
414 | struct timeval tv; |
714 | struct timeval tv; |
415 | gettimeofday (&tv, 0); |
715 | gettimeofday (&tv, 0); |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
716 | return tv.tv_sec + tv.tv_usec * 1e-6; |
417 | #endif |
|
|
418 | } |
717 | } |
|
|
718 | #endif |
419 | |
719 | |
420 | ev_tstamp inline_size |
720 | inline_size ev_tstamp |
421 | get_clock (void) |
721 | get_clock (void) |
422 | { |
722 | { |
423 | #if EV_USE_MONOTONIC |
723 | #if EV_USE_MONOTONIC |
424 | if (expect_true (have_monotonic)) |
724 | if (expect_true (have_monotonic)) |
425 | { |
725 | { |
… | |
… | |
451 | ts.tv_sec = (time_t)delay; |
751 | ts.tv_sec = (time_t)delay; |
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
752 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
453 | |
753 | |
454 | nanosleep (&ts, 0); |
754 | nanosleep (&ts, 0); |
455 | #elif defined(_WIN32) |
755 | #elif defined(_WIN32) |
456 | Sleep (delay * 1e3); |
756 | Sleep ((unsigned long)(delay * 1e3)); |
457 | #else |
757 | #else |
458 | struct timeval tv; |
758 | struct timeval tv; |
459 | |
759 | |
460 | tv.tv_sec = (time_t)delay; |
760 | tv.tv_sec = (time_t)delay; |
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
761 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
462 | |
762 | |
|
|
763 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
764 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
765 | /* by older ones */ |
463 | select (0, 0, 0, 0, &tv); |
766 | select (0, 0, 0, 0, &tv); |
464 | #endif |
767 | #endif |
465 | } |
768 | } |
466 | } |
769 | } |
467 | |
770 | |
468 | /*****************************************************************************/ |
771 | /*****************************************************************************/ |
469 | |
772 | |
470 | int inline_size |
773 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
774 | |
|
|
775 | /* find a suitable new size for the given array, */ |
|
|
776 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
777 | inline_size int |
471 | array_nextsize (int elem, int cur, int cnt) |
778 | array_nextsize (int elem, int cur, int cnt) |
472 | { |
779 | { |
473 | int ncur = cur + 1; |
780 | int ncur = cur + 1; |
474 | |
781 | |
475 | do |
782 | do |
476 | ncur <<= 1; |
783 | ncur <<= 1; |
477 | while (cnt > ncur); |
784 | while (cnt > ncur); |
478 | |
785 | |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
786 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
480 | if (elem * ncur > 4096) |
787 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
481 | { |
788 | { |
482 | ncur *= elem; |
789 | ncur *= elem; |
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
790 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
484 | ncur = ncur - sizeof (void *) * 4; |
791 | ncur = ncur - sizeof (void *) * 4; |
485 | ncur /= elem; |
792 | ncur /= elem; |
486 | } |
793 | } |
487 | |
794 | |
488 | return ncur; |
795 | return ncur; |
… | |
… | |
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
799 | array_realloc (int elem, void *base, int *cur, int cnt) |
493 | { |
800 | { |
494 | *cur = array_nextsize (elem, *cur, cnt); |
801 | *cur = array_nextsize (elem, *cur, cnt); |
495 | return ev_realloc (base, elem * *cur); |
802 | return ev_realloc (base, elem * *cur); |
496 | } |
803 | } |
|
|
804 | |
|
|
805 | #define array_init_zero(base,count) \ |
|
|
806 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
497 | |
807 | |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
808 | #define array_needsize(type,base,cur,cnt,init) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
809 | if (expect_false ((cnt) > (cur))) \ |
500 | { \ |
810 | { \ |
501 | int ocur_ = (cur); \ |
811 | int ocur_ = (cur); \ |
… | |
… | |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
823 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
514 | } |
824 | } |
515 | #endif |
825 | #endif |
516 | |
826 | |
517 | #define array_free(stem, idx) \ |
827 | #define array_free(stem, idx) \ |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
828 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
519 | |
829 | |
520 | /*****************************************************************************/ |
830 | /*****************************************************************************/ |
|
|
831 | |
|
|
832 | /* dummy callback for pending events */ |
|
|
833 | static void noinline |
|
|
834 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
835 | { |
|
|
836 | } |
521 | |
837 | |
522 | void noinline |
838 | void noinline |
523 | ev_feed_event (EV_P_ void *w, int revents) |
839 | ev_feed_event (EV_P_ void *w, int revents) |
524 | { |
840 | { |
525 | W w_ = (W)w; |
841 | W w_ = (W)w; |
… | |
… | |
534 | pendings [pri][w_->pending - 1].w = w_; |
850 | pendings [pri][w_->pending - 1].w = w_; |
535 | pendings [pri][w_->pending - 1].events = revents; |
851 | pendings [pri][w_->pending - 1].events = revents; |
536 | } |
852 | } |
537 | } |
853 | } |
538 | |
854 | |
539 | void inline_speed |
855 | inline_speed void |
|
|
856 | feed_reverse (EV_P_ W w) |
|
|
857 | { |
|
|
858 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
859 | rfeeds [rfeedcnt++] = w; |
|
|
860 | } |
|
|
861 | |
|
|
862 | inline_size void |
|
|
863 | feed_reverse_done (EV_P_ int revents) |
|
|
864 | { |
|
|
865 | do |
|
|
866 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
867 | while (rfeedcnt); |
|
|
868 | } |
|
|
869 | |
|
|
870 | inline_speed void |
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
871 | queue_events (EV_P_ W *events, int eventcnt, int type) |
541 | { |
872 | { |
542 | int i; |
873 | int i; |
543 | |
874 | |
544 | for (i = 0; i < eventcnt; ++i) |
875 | for (i = 0; i < eventcnt; ++i) |
545 | ev_feed_event (EV_A_ events [i], type); |
876 | ev_feed_event (EV_A_ events [i], type); |
546 | } |
877 | } |
547 | |
878 | |
548 | /*****************************************************************************/ |
879 | /*****************************************************************************/ |
549 | |
880 | |
550 | void inline_size |
881 | 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) |
882 | fd_event_nc (EV_P_ int fd, int revents) |
565 | { |
883 | { |
566 | ANFD *anfd = anfds + fd; |
884 | ANFD *anfd = anfds + fd; |
567 | ev_io *w; |
885 | ev_io *w; |
568 | |
886 | |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
887 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
573 | if (ev) |
891 | if (ev) |
574 | ev_feed_event (EV_A_ (W)w, ev); |
892 | ev_feed_event (EV_A_ (W)w, ev); |
575 | } |
893 | } |
576 | } |
894 | } |
577 | |
895 | |
|
|
896 | /* do not submit kernel events for fds that have reify set */ |
|
|
897 | /* because that means they changed while we were polling for new events */ |
|
|
898 | inline_speed void |
|
|
899 | fd_event (EV_P_ int fd, int revents) |
|
|
900 | { |
|
|
901 | ANFD *anfd = anfds + fd; |
|
|
902 | |
|
|
903 | if (expect_true (!anfd->reify)) |
|
|
904 | fd_event_nc (EV_A_ fd, revents); |
|
|
905 | } |
|
|
906 | |
578 | void |
907 | void |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
908 | ev_feed_fd_event (EV_P_ int fd, int revents) |
580 | { |
909 | { |
581 | if (fd >= 0 && fd < anfdmax) |
910 | if (fd >= 0 && fd < anfdmax) |
582 | fd_event (EV_A_ fd, revents); |
911 | fd_event_nc (EV_A_ fd, revents); |
583 | } |
912 | } |
584 | |
913 | |
585 | void inline_size |
914 | /* make sure the external fd watch events are in-sync */ |
|
|
915 | /* with the kernel/libev internal state */ |
|
|
916 | inline_size void |
586 | fd_reify (EV_P) |
917 | fd_reify (EV_P) |
587 | { |
918 | { |
588 | int i; |
919 | int i; |
589 | |
920 | |
590 | for (i = 0; i < fdchangecnt; ++i) |
921 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
599 | events |= (unsigned char)w->events; |
930 | events |= (unsigned char)w->events; |
600 | |
931 | |
601 | #if EV_SELECT_IS_WINSOCKET |
932 | #if EV_SELECT_IS_WINSOCKET |
602 | if (events) |
933 | if (events) |
603 | { |
934 | { |
604 | unsigned long argp; |
935 | unsigned long arg; |
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
936 | 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)); |
937 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
611 | } |
938 | } |
612 | #endif |
939 | #endif |
613 | |
940 | |
614 | { |
941 | { |
615 | unsigned char o_events = anfd->events; |
942 | unsigned char o_events = anfd->events; |
616 | unsigned char o_reify = anfd->reify; |
943 | unsigned char o_reify = anfd->reify; |
617 | |
944 | |
618 | anfd->reify = 0; |
945 | anfd->reify = 0; |
619 | anfd->events = events; |
946 | anfd->events = events; |
620 | |
947 | |
621 | if (o_events != events || o_reify & EV_IOFDSET) |
948 | if (o_events != events || o_reify & EV__IOFDSET) |
622 | backend_modify (EV_A_ fd, o_events, events); |
949 | backend_modify (EV_A_ fd, o_events, events); |
623 | } |
950 | } |
624 | } |
951 | } |
625 | |
952 | |
626 | fdchangecnt = 0; |
953 | fdchangecnt = 0; |
627 | } |
954 | } |
628 | |
955 | |
629 | void inline_size |
956 | /* something about the given fd changed */ |
|
|
957 | inline_size void |
630 | fd_change (EV_P_ int fd, int flags) |
958 | fd_change (EV_P_ int fd, int flags) |
631 | { |
959 | { |
632 | unsigned char reify = anfds [fd].reify; |
960 | unsigned char reify = anfds [fd].reify; |
633 | anfds [fd].reify |= flags; |
961 | anfds [fd].reify |= flags; |
634 | |
962 | |
… | |
… | |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
966 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
639 | fdchanges [fdchangecnt - 1] = fd; |
967 | fdchanges [fdchangecnt - 1] = fd; |
640 | } |
968 | } |
641 | } |
969 | } |
642 | |
970 | |
643 | void inline_speed |
971 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
972 | inline_speed void |
644 | fd_kill (EV_P_ int fd) |
973 | fd_kill (EV_P_ int fd) |
645 | { |
974 | { |
646 | ev_io *w; |
975 | ev_io *w; |
647 | |
976 | |
648 | while ((w = (ev_io *)anfds [fd].head)) |
977 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
650 | ev_io_stop (EV_A_ w); |
979 | ev_io_stop (EV_A_ w); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
980 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
652 | } |
981 | } |
653 | } |
982 | } |
654 | |
983 | |
655 | int inline_size |
984 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
985 | inline_size int |
656 | fd_valid (int fd) |
986 | fd_valid (int fd) |
657 | { |
987 | { |
658 | #ifdef _WIN32 |
988 | #ifdef _WIN32 |
659 | return _get_osfhandle (fd) != -1; |
989 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
660 | #else |
990 | #else |
661 | return fcntl (fd, F_GETFD) != -1; |
991 | return fcntl (fd, F_GETFD) != -1; |
662 | #endif |
992 | #endif |
663 | } |
993 | } |
664 | |
994 | |
… | |
… | |
668 | { |
998 | { |
669 | int fd; |
999 | int fd; |
670 | |
1000 | |
671 | for (fd = 0; fd < anfdmax; ++fd) |
1001 | for (fd = 0; fd < anfdmax; ++fd) |
672 | if (anfds [fd].events) |
1002 | if (anfds [fd].events) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1003 | if (!fd_valid (fd) && errno == EBADF) |
674 | fd_kill (EV_A_ fd); |
1004 | fd_kill (EV_A_ fd); |
675 | } |
1005 | } |
676 | |
1006 | |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1007 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
678 | static void noinline |
1008 | static void noinline |
… | |
… | |
682 | |
1012 | |
683 | for (fd = anfdmax; fd--; ) |
1013 | for (fd = anfdmax; fd--; ) |
684 | if (anfds [fd].events) |
1014 | if (anfds [fd].events) |
685 | { |
1015 | { |
686 | fd_kill (EV_A_ fd); |
1016 | fd_kill (EV_A_ fd); |
687 | return; |
1017 | break; |
688 | } |
1018 | } |
689 | } |
1019 | } |
690 | |
1020 | |
691 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1021 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
692 | static void noinline |
1022 | static void noinline |
… | |
… | |
696 | |
1026 | |
697 | for (fd = 0; fd < anfdmax; ++fd) |
1027 | for (fd = 0; fd < anfdmax; ++fd) |
698 | if (anfds [fd].events) |
1028 | if (anfds [fd].events) |
699 | { |
1029 | { |
700 | anfds [fd].events = 0; |
1030 | anfds [fd].events = 0; |
|
|
1031 | anfds [fd].emask = 0; |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1032 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
702 | } |
1033 | } |
703 | } |
1034 | } |
704 | |
1035 | |
705 | /*****************************************************************************/ |
1036 | /*****************************************************************************/ |
706 | |
1037 | |
707 | void inline_speed |
1038 | /* |
708 | upheap (WT *heap, int k) |
1039 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
709 | { |
1040 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
710 | WT w = heap [k]; |
1041 | * the branching factor of the d-tree. |
|
|
1042 | */ |
711 | |
1043 | |
712 | while (k) |
1044 | /* |
713 | { |
1045 | * at the moment we allow libev the luxury of two heaps, |
714 | int p = (k - 1) >> 1; |
1046 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1047 | * which is more cache-efficient. |
|
|
1048 | * the difference is about 5% with 50000+ watchers. |
|
|
1049 | */ |
|
|
1050 | #if EV_USE_4HEAP |
715 | |
1051 | |
716 | if (heap [p]->at <= w->at) |
1052 | #define DHEAP 4 |
|
|
1053 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1054 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1055 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1056 | |
|
|
1057 | /* away from the root */ |
|
|
1058 | inline_speed void |
|
|
1059 | downheap (ANHE *heap, int N, int k) |
|
|
1060 | { |
|
|
1061 | ANHE he = heap [k]; |
|
|
1062 | ANHE *E = heap + N + HEAP0; |
|
|
1063 | |
|
|
1064 | for (;;) |
|
|
1065 | { |
|
|
1066 | ev_tstamp minat; |
|
|
1067 | ANHE *minpos; |
|
|
1068 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1069 | |
|
|
1070 | /* find minimum child */ |
|
|
1071 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1072 | { |
|
|
1073 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1074 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1075 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1076 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1077 | } |
|
|
1078 | else if (pos < E) |
|
|
1079 | { |
|
|
1080 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1081 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1082 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1083 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1084 | } |
|
|
1085 | else |
717 | break; |
1086 | break; |
718 | |
1087 | |
|
|
1088 | if (ANHE_at (he) <= minat) |
|
|
1089 | break; |
|
|
1090 | |
|
|
1091 | heap [k] = *minpos; |
|
|
1092 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1093 | |
|
|
1094 | k = minpos - heap; |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | heap [k] = he; |
|
|
1098 | ev_active (ANHE_w (he)) = k; |
|
|
1099 | } |
|
|
1100 | |
|
|
1101 | #else /* 4HEAP */ |
|
|
1102 | |
|
|
1103 | #define HEAP0 1 |
|
|
1104 | #define HPARENT(k) ((k) >> 1) |
|
|
1105 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1106 | |
|
|
1107 | /* away from the root */ |
|
|
1108 | inline_speed void |
|
|
1109 | downheap (ANHE *heap, int N, int k) |
|
|
1110 | { |
|
|
1111 | ANHE he = heap [k]; |
|
|
1112 | |
|
|
1113 | for (;;) |
|
|
1114 | { |
|
|
1115 | int c = k << 1; |
|
|
1116 | |
|
|
1117 | if (c >= N + HEAP0) |
|
|
1118 | break; |
|
|
1119 | |
|
|
1120 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1121 | ? 1 : 0; |
|
|
1122 | |
|
|
1123 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1124 | break; |
|
|
1125 | |
|
|
1126 | heap [k] = heap [c]; |
|
|
1127 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1128 | |
|
|
1129 | k = c; |
|
|
1130 | } |
|
|
1131 | |
|
|
1132 | heap [k] = he; |
|
|
1133 | ev_active (ANHE_w (he)) = k; |
|
|
1134 | } |
|
|
1135 | #endif |
|
|
1136 | |
|
|
1137 | /* towards the root */ |
|
|
1138 | inline_speed void |
|
|
1139 | upheap (ANHE *heap, int k) |
|
|
1140 | { |
|
|
1141 | ANHE he = heap [k]; |
|
|
1142 | |
|
|
1143 | for (;;) |
|
|
1144 | { |
|
|
1145 | int p = HPARENT (k); |
|
|
1146 | |
|
|
1147 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1148 | break; |
|
|
1149 | |
719 | heap [k] = heap [p]; |
1150 | heap [k] = heap [p]; |
720 | ((W)heap [k])->active = k + 1; |
1151 | ev_active (ANHE_w (heap [k])) = k; |
721 | k = p; |
1152 | k = p; |
722 | } |
1153 | } |
723 | |
1154 | |
724 | heap [k] = w; |
1155 | heap [k] = he; |
725 | ((W)heap [k])->active = k + 1; |
1156 | ev_active (ANHE_w (he)) = k; |
726 | } |
1157 | } |
727 | |
1158 | |
728 | void inline_speed |
1159 | /* move an element suitably so it is in a correct place */ |
729 | downheap (WT *heap, int N, int k) |
1160 | 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) |
1161 | adjustheap (ANHE *heap, int N, int k) |
758 | { |
1162 | { |
|
|
1163 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
759 | upheap (heap, k); |
1164 | upheap (heap, k); |
|
|
1165 | else |
760 | downheap (heap, N, k); |
1166 | downheap (heap, N, k); |
|
|
1167 | } |
|
|
1168 | |
|
|
1169 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1170 | inline_size void |
|
|
1171 | reheap (ANHE *heap, int N) |
|
|
1172 | { |
|
|
1173 | int i; |
|
|
1174 | |
|
|
1175 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1176 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1177 | for (i = 0; i < N; ++i) |
|
|
1178 | upheap (heap, i + HEAP0); |
761 | } |
1179 | } |
762 | |
1180 | |
763 | /*****************************************************************************/ |
1181 | /*****************************************************************************/ |
764 | |
1182 | |
|
|
1183 | /* associate signal watchers to a signal signal */ |
765 | typedef struct |
1184 | typedef struct |
766 | { |
1185 | { |
|
|
1186 | EV_ATOMIC_T pending; |
|
|
1187 | #if EV_MULTIPLICITY |
|
|
1188 | EV_P; |
|
|
1189 | #endif |
767 | WL head; |
1190 | WL head; |
768 | sig_atomic_t volatile gotsig; |
|
|
769 | } ANSIG; |
1191 | } ANSIG; |
770 | |
1192 | |
771 | static ANSIG *signals; |
1193 | static ANSIG signals [EV_NSIG - 1]; |
772 | static int signalmax; |
|
|
773 | |
1194 | |
774 | static int sigpipe [2]; |
1195 | /*****************************************************************************/ |
775 | static sig_atomic_t volatile gotsig; |
|
|
776 | static ev_io sigev; |
|
|
777 | |
1196 | |
778 | void inline_size |
1197 | /* used to prepare libev internal fd's */ |
779 | signals_init (ANSIG *base, int count) |
1198 | /* this is not fork-safe */ |
780 | { |
1199 | inline_speed void |
781 | while (count--) |
|
|
782 | { |
|
|
783 | base->head = 0; |
|
|
784 | base->gotsig = 0; |
|
|
785 | |
|
|
786 | ++base; |
|
|
787 | } |
|
|
788 | } |
|
|
789 | |
|
|
790 | static void |
|
|
791 | sighandler (int signum) |
|
|
792 | { |
|
|
793 | #if _WIN32 |
|
|
794 | signal (signum, sighandler); |
|
|
795 | #endif |
|
|
796 | |
|
|
797 | signals [signum - 1].gotsig = 1; |
|
|
798 | |
|
|
799 | if (!gotsig) |
|
|
800 | { |
|
|
801 | int old_errno = errno; |
|
|
802 | gotsig = 1; |
|
|
803 | write (sigpipe [1], &signum, 1); |
|
|
804 | errno = old_errno; |
|
|
805 | } |
|
|
806 | } |
|
|
807 | |
|
|
808 | void noinline |
|
|
809 | ev_feed_signal_event (EV_P_ int signum) |
|
|
810 | { |
|
|
811 | WL w; |
|
|
812 | |
|
|
813 | #if EV_MULTIPLICITY |
|
|
814 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | --signum; |
|
|
818 | |
|
|
819 | if (signum < 0 || signum >= signalmax) |
|
|
820 | return; |
|
|
821 | |
|
|
822 | signals [signum].gotsig = 0; |
|
|
823 | |
|
|
824 | for (w = signals [signum].head; w; w = w->next) |
|
|
825 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
826 | } |
|
|
827 | |
|
|
828 | static void |
|
|
829 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
830 | { |
|
|
831 | int signum; |
|
|
832 | |
|
|
833 | read (sigpipe [0], &revents, 1); |
|
|
834 | gotsig = 0; |
|
|
835 | |
|
|
836 | for (signum = signalmax; signum--; ) |
|
|
837 | if (signals [signum].gotsig) |
|
|
838 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
839 | } |
|
|
840 | |
|
|
841 | void inline_speed |
|
|
842 | fd_intern (int fd) |
1200 | fd_intern (int fd) |
843 | { |
1201 | { |
844 | #ifdef _WIN32 |
1202 | #ifdef _WIN32 |
845 | int arg = 1; |
1203 | unsigned long arg = 1; |
846 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1204 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
847 | #else |
1205 | #else |
848 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1206 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1207 | fcntl (fd, F_SETFL, O_NONBLOCK); |
850 | #endif |
1208 | #endif |
851 | } |
1209 | } |
852 | |
1210 | |
853 | static void noinline |
1211 | static void noinline |
854 | siginit (EV_P) |
1212 | evpipe_init (EV_P) |
855 | { |
1213 | { |
|
|
1214 | if (!ev_is_active (&pipe_w)) |
|
|
1215 | { |
|
|
1216 | #if EV_USE_EVENTFD |
|
|
1217 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1218 | if (evfd < 0 && errno == EINVAL) |
|
|
1219 | evfd = eventfd (0, 0); |
|
|
1220 | |
|
|
1221 | if (evfd >= 0) |
|
|
1222 | { |
|
|
1223 | evpipe [0] = -1; |
|
|
1224 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1225 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1226 | } |
|
|
1227 | else |
|
|
1228 | #endif |
|
|
1229 | { |
|
|
1230 | while (pipe (evpipe)) |
|
|
1231 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1232 | |
856 | fd_intern (sigpipe [0]); |
1233 | fd_intern (evpipe [0]); |
857 | fd_intern (sigpipe [1]); |
1234 | fd_intern (evpipe [1]); |
|
|
1235 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1236 | } |
858 | |
1237 | |
859 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
860 | ev_io_start (EV_A_ &sigev); |
1238 | ev_io_start (EV_A_ &pipe_w); |
861 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1239 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1240 | } |
|
|
1241 | } |
|
|
1242 | |
|
|
1243 | inline_size void |
|
|
1244 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1245 | { |
|
|
1246 | if (!*flag) |
|
|
1247 | { |
|
|
1248 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1249 | |
|
|
1250 | *flag = 1; |
|
|
1251 | |
|
|
1252 | #if EV_USE_EVENTFD |
|
|
1253 | if (evfd >= 0) |
|
|
1254 | { |
|
|
1255 | uint64_t counter = 1; |
|
|
1256 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1257 | } |
|
|
1258 | else |
|
|
1259 | #endif |
|
|
1260 | write (evpipe [1], &old_errno, 1); |
|
|
1261 | |
|
|
1262 | errno = old_errno; |
|
|
1263 | } |
|
|
1264 | } |
|
|
1265 | |
|
|
1266 | /* called whenever the libev signal pipe */ |
|
|
1267 | /* got some events (signal, async) */ |
|
|
1268 | static void |
|
|
1269 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1270 | { |
|
|
1271 | int i; |
|
|
1272 | |
|
|
1273 | #if EV_USE_EVENTFD |
|
|
1274 | if (evfd >= 0) |
|
|
1275 | { |
|
|
1276 | uint64_t counter; |
|
|
1277 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1278 | } |
|
|
1279 | else |
|
|
1280 | #endif |
|
|
1281 | { |
|
|
1282 | char dummy; |
|
|
1283 | read (evpipe [0], &dummy, 1); |
|
|
1284 | } |
|
|
1285 | |
|
|
1286 | if (sig_pending) |
|
|
1287 | { |
|
|
1288 | sig_pending = 0; |
|
|
1289 | |
|
|
1290 | for (i = EV_NSIG - 1; i--; ) |
|
|
1291 | if (expect_false (signals [i].pending)) |
|
|
1292 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1293 | } |
|
|
1294 | |
|
|
1295 | #if EV_ASYNC_ENABLE |
|
|
1296 | if (async_pending) |
|
|
1297 | { |
|
|
1298 | async_pending = 0; |
|
|
1299 | |
|
|
1300 | for (i = asynccnt; i--; ) |
|
|
1301 | if (asyncs [i]->sent) |
|
|
1302 | { |
|
|
1303 | asyncs [i]->sent = 0; |
|
|
1304 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1305 | } |
|
|
1306 | } |
|
|
1307 | #endif |
862 | } |
1308 | } |
863 | |
1309 | |
864 | /*****************************************************************************/ |
1310 | /*****************************************************************************/ |
865 | |
1311 | |
|
|
1312 | static void |
|
|
1313 | ev_sighandler (int signum) |
|
|
1314 | { |
|
|
1315 | #if EV_MULTIPLICITY |
|
|
1316 | EV_P = signals [signum - 1].loop; |
|
|
1317 | #endif |
|
|
1318 | |
|
|
1319 | #ifdef _WIN32 |
|
|
1320 | signal (signum, ev_sighandler); |
|
|
1321 | #endif |
|
|
1322 | |
|
|
1323 | signals [signum - 1].pending = 1; |
|
|
1324 | evpipe_write (EV_A_ &sig_pending); |
|
|
1325 | } |
|
|
1326 | |
|
|
1327 | void noinline |
|
|
1328 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1329 | { |
|
|
1330 | WL w; |
|
|
1331 | |
|
|
1332 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1333 | return; |
|
|
1334 | |
|
|
1335 | --signum; |
|
|
1336 | |
|
|
1337 | #if EV_MULTIPLICITY |
|
|
1338 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
1339 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
1340 | |
|
|
1341 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
1342 | return; |
|
|
1343 | #endif |
|
|
1344 | |
|
|
1345 | signals [signum].pending = 0; |
|
|
1346 | |
|
|
1347 | for (w = signals [signum].head; w; w = w->next) |
|
|
1348 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1349 | } |
|
|
1350 | |
|
|
1351 | #if EV_USE_SIGNALFD |
|
|
1352 | static void |
|
|
1353 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1354 | { |
|
|
1355 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1356 | |
|
|
1357 | for (;;) |
|
|
1358 | { |
|
|
1359 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1360 | |
|
|
1361 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1362 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1363 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1364 | |
|
|
1365 | if (res < (ssize_t)sizeof (si)) |
|
|
1366 | break; |
|
|
1367 | } |
|
|
1368 | } |
|
|
1369 | #endif |
|
|
1370 | |
|
|
1371 | /*****************************************************************************/ |
|
|
1372 | |
866 | static WL childs [EV_PID_HASHSIZE]; |
1373 | static WL childs [EV_PID_HASHSIZE]; |
867 | |
1374 | |
868 | #ifndef _WIN32 |
1375 | #ifndef _WIN32 |
869 | |
1376 | |
870 | static ev_signal childev; |
1377 | static ev_signal childev; |
871 | |
1378 | |
872 | void inline_speed |
1379 | #ifndef WIFCONTINUED |
|
|
1380 | # define WIFCONTINUED(status) 0 |
|
|
1381 | #endif |
|
|
1382 | |
|
|
1383 | /* handle a single child status event */ |
|
|
1384 | inline_speed void |
873 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1385 | child_reap (EV_P_ int chain, int pid, int status) |
874 | { |
1386 | { |
875 | ev_child *w; |
1387 | ev_child *w; |
|
|
1388 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
876 | |
1389 | |
877 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1390 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1391 | { |
878 | if (w->pid == pid || !w->pid) |
1392 | if ((w->pid == pid || !w->pid) |
|
|
1393 | && (!traced || (w->flags & 1))) |
879 | { |
1394 | { |
880 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1395 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
881 | w->rpid = pid; |
1396 | w->rpid = pid; |
882 | w->rstatus = status; |
1397 | w->rstatus = status; |
883 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1398 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
884 | } |
1399 | } |
|
|
1400 | } |
885 | } |
1401 | } |
886 | |
1402 | |
887 | #ifndef WCONTINUED |
1403 | #ifndef WCONTINUED |
888 | # define WCONTINUED 0 |
1404 | # define WCONTINUED 0 |
889 | #endif |
1405 | #endif |
890 | |
1406 | |
|
|
1407 | /* called on sigchld etc., calls waitpid */ |
891 | static void |
1408 | static void |
892 | childcb (EV_P_ ev_signal *sw, int revents) |
1409 | childcb (EV_P_ ev_signal *sw, int revents) |
893 | { |
1410 | { |
894 | int pid, status; |
1411 | int pid, status; |
895 | |
1412 | |
… | |
… | |
898 | if (!WCONTINUED |
1415 | if (!WCONTINUED |
899 | || errno != EINVAL |
1416 | || errno != EINVAL |
900 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1417 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
901 | return; |
1418 | return; |
902 | |
1419 | |
903 | /* make sure we are called again until all childs have been reaped */ |
1420 | /* make sure we are called again until all children have been reaped */ |
904 | /* we need to do it this way so that the callback gets called before we continue */ |
1421 | /* we need to do it this way so that the callback gets called before we continue */ |
905 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1422 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
906 | |
1423 | |
907 | child_reap (EV_A_ sw, pid, pid, status); |
1424 | child_reap (EV_A_ pid, pid, status); |
908 | if (EV_PID_HASHSIZE > 1) |
1425 | if (EV_PID_HASHSIZE > 1) |
909 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1426 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
910 | } |
1427 | } |
911 | |
1428 | |
912 | #endif |
1429 | #endif |
913 | |
1430 | |
914 | /*****************************************************************************/ |
1431 | /*****************************************************************************/ |
… | |
… | |
976 | /* kqueue is borked on everything but netbsd apparently */ |
1493 | /* kqueue is borked on everything but netbsd apparently */ |
977 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1494 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
978 | flags &= ~EVBACKEND_KQUEUE; |
1495 | flags &= ~EVBACKEND_KQUEUE; |
979 | #endif |
1496 | #endif |
980 | #ifdef __APPLE__ |
1497 | #ifdef __APPLE__ |
981 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1498 | /* only select works correctly on that "unix-certified" platform */ |
982 | flags &= ~EVBACKEND_POLL; |
1499 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1500 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
983 | #endif |
1501 | #endif |
984 | |
1502 | |
985 | return flags; |
1503 | return flags; |
986 | } |
1504 | } |
987 | |
1505 | |
… | |
… | |
1001 | ev_backend (EV_P) |
1519 | ev_backend (EV_P) |
1002 | { |
1520 | { |
1003 | return backend; |
1521 | return backend; |
1004 | } |
1522 | } |
1005 | |
1523 | |
|
|
1524 | #if EV_MINIMAL < 2 |
1006 | unsigned int |
1525 | unsigned int |
1007 | ev_loop_count (EV_P) |
1526 | ev_loop_count (EV_P) |
1008 | { |
1527 | { |
1009 | return loop_count; |
1528 | return loop_count; |
1010 | } |
1529 | } |
1011 | |
1530 | |
|
|
1531 | unsigned int |
|
|
1532 | ev_loop_depth (EV_P) |
|
|
1533 | { |
|
|
1534 | return loop_depth; |
|
|
1535 | } |
|
|
1536 | |
1012 | void |
1537 | void |
1013 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1538 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1014 | { |
1539 | { |
1015 | io_blocktime = interval; |
1540 | io_blocktime = interval; |
1016 | } |
1541 | } |
… | |
… | |
1019 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1544 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1020 | { |
1545 | { |
1021 | timeout_blocktime = interval; |
1546 | timeout_blocktime = interval; |
1022 | } |
1547 | } |
1023 | |
1548 | |
|
|
1549 | void |
|
|
1550 | ev_set_userdata (EV_P_ void *data) |
|
|
1551 | { |
|
|
1552 | userdata = data; |
|
|
1553 | } |
|
|
1554 | |
|
|
1555 | void * |
|
|
1556 | ev_userdata (EV_P) |
|
|
1557 | { |
|
|
1558 | return userdata; |
|
|
1559 | } |
|
|
1560 | |
|
|
1561 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1562 | { |
|
|
1563 | invoke_cb = invoke_pending_cb; |
|
|
1564 | } |
|
|
1565 | |
|
|
1566 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1567 | { |
|
|
1568 | release_cb = release; |
|
|
1569 | acquire_cb = acquire; |
|
|
1570 | } |
|
|
1571 | #endif |
|
|
1572 | |
|
|
1573 | /* initialise a loop structure, must be zero-initialised */ |
1024 | static void noinline |
1574 | static void noinline |
1025 | loop_init (EV_P_ unsigned int flags) |
1575 | loop_init (EV_P_ unsigned int flags) |
1026 | { |
1576 | { |
1027 | if (!backend) |
1577 | if (!backend) |
1028 | { |
1578 | { |
|
|
1579 | #if EV_USE_REALTIME |
|
|
1580 | if (!have_realtime) |
|
|
1581 | { |
|
|
1582 | struct timespec ts; |
|
|
1583 | |
|
|
1584 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1585 | have_realtime = 1; |
|
|
1586 | } |
|
|
1587 | #endif |
|
|
1588 | |
1029 | #if EV_USE_MONOTONIC |
1589 | #if EV_USE_MONOTONIC |
|
|
1590 | if (!have_monotonic) |
1030 | { |
1591 | { |
1031 | struct timespec ts; |
1592 | struct timespec ts; |
|
|
1593 | |
1032 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1594 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1033 | have_monotonic = 1; |
1595 | have_monotonic = 1; |
1034 | } |
1596 | } |
1035 | #endif |
1597 | #endif |
1036 | |
|
|
1037 | ev_rt_now = ev_time (); |
|
|
1038 | mn_now = get_clock (); |
|
|
1039 | now_floor = mn_now; |
|
|
1040 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1041 | |
|
|
1042 | io_blocktime = 0.; |
|
|
1043 | timeout_blocktime = 0.; |
|
|
1044 | |
1598 | |
1045 | /* pid check not overridable via env */ |
1599 | /* pid check not overridable via env */ |
1046 | #ifndef _WIN32 |
1600 | #ifndef _WIN32 |
1047 | if (flags & EVFLAG_FORKCHECK) |
1601 | if (flags & EVFLAG_FORKCHECK) |
1048 | curpid = getpid (); |
1602 | curpid = getpid (); |
… | |
… | |
1051 | if (!(flags & EVFLAG_NOENV) |
1605 | if (!(flags & EVFLAG_NOENV) |
1052 | && !enable_secure () |
1606 | && !enable_secure () |
1053 | && getenv ("LIBEV_FLAGS")) |
1607 | && getenv ("LIBEV_FLAGS")) |
1054 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1608 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1055 | |
1609 | |
|
|
1610 | ev_rt_now = ev_time (); |
|
|
1611 | mn_now = get_clock (); |
|
|
1612 | now_floor = mn_now; |
|
|
1613 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1614 | #if EV_MINIMAL < 2 |
|
|
1615 | invoke_cb = ev_invoke_pending; |
|
|
1616 | #endif |
|
|
1617 | |
|
|
1618 | io_blocktime = 0.; |
|
|
1619 | timeout_blocktime = 0.; |
|
|
1620 | backend = 0; |
|
|
1621 | backend_fd = -1; |
|
|
1622 | sig_pending = 0; |
|
|
1623 | #if EV_ASYNC_ENABLE |
|
|
1624 | async_pending = 0; |
|
|
1625 | #endif |
|
|
1626 | #if EV_USE_INOTIFY |
|
|
1627 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1628 | #endif |
|
|
1629 | #if EV_USE_SIGNALFD |
|
|
1630 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1631 | #endif |
|
|
1632 | |
1056 | if (!(flags & 0x0000ffffUL)) |
1633 | if (!(flags & 0x0000ffffU)) |
1057 | flags |= ev_recommended_backends (); |
1634 | flags |= ev_recommended_backends (); |
1058 | |
|
|
1059 | backend = 0; |
|
|
1060 | backend_fd = -1; |
|
|
1061 | #if EV_USE_INOTIFY |
|
|
1062 | fs_fd = -2; |
|
|
1063 | #endif |
|
|
1064 | |
1635 | |
1065 | #if EV_USE_PORT |
1636 | #if EV_USE_PORT |
1066 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1637 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1067 | #endif |
1638 | #endif |
1068 | #if EV_USE_KQUEUE |
1639 | #if EV_USE_KQUEUE |
… | |
… | |
1076 | #endif |
1647 | #endif |
1077 | #if EV_USE_SELECT |
1648 | #if EV_USE_SELECT |
1078 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1649 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1079 | #endif |
1650 | #endif |
1080 | |
1651 | |
|
|
1652 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1653 | |
1081 | ev_init (&sigev, sigcb); |
1654 | ev_init (&pipe_w, pipecb); |
1082 | ev_set_priority (&sigev, EV_MAXPRI); |
1655 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1083 | } |
1656 | } |
1084 | } |
1657 | } |
1085 | |
1658 | |
|
|
1659 | /* free up a loop structure */ |
1086 | static void noinline |
1660 | static void noinline |
1087 | loop_destroy (EV_P) |
1661 | loop_destroy (EV_P) |
1088 | { |
1662 | { |
1089 | int i; |
1663 | int i; |
|
|
1664 | |
|
|
1665 | if (ev_is_active (&pipe_w)) |
|
|
1666 | { |
|
|
1667 | /*ev_ref (EV_A);*/ |
|
|
1668 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1669 | |
|
|
1670 | #if EV_USE_EVENTFD |
|
|
1671 | if (evfd >= 0) |
|
|
1672 | close (evfd); |
|
|
1673 | #endif |
|
|
1674 | |
|
|
1675 | if (evpipe [0] >= 0) |
|
|
1676 | { |
|
|
1677 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1678 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1679 | } |
|
|
1680 | } |
|
|
1681 | |
|
|
1682 | #if EV_USE_SIGNALFD |
|
|
1683 | if (ev_is_active (&sigfd_w)) |
|
|
1684 | close (sigfd); |
|
|
1685 | #endif |
1090 | |
1686 | |
1091 | #if EV_USE_INOTIFY |
1687 | #if EV_USE_INOTIFY |
1092 | if (fs_fd >= 0) |
1688 | if (fs_fd >= 0) |
1093 | close (fs_fd); |
1689 | close (fs_fd); |
1094 | #endif |
1690 | #endif |
… | |
… | |
1118 | #if EV_IDLE_ENABLE |
1714 | #if EV_IDLE_ENABLE |
1119 | array_free (idle, [i]); |
1715 | array_free (idle, [i]); |
1120 | #endif |
1716 | #endif |
1121 | } |
1717 | } |
1122 | |
1718 | |
1123 | ev_free (anfds); anfdmax = 0; |
1719 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1124 | |
1720 | |
1125 | /* have to use the microsoft-never-gets-it-right macro */ |
1721 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1722 | array_free (rfeed, EMPTY); |
1126 | array_free (fdchange, EMPTY); |
1723 | array_free (fdchange, EMPTY); |
1127 | array_free (timer, EMPTY); |
1724 | array_free (timer, EMPTY); |
1128 | #if EV_PERIODIC_ENABLE |
1725 | #if EV_PERIODIC_ENABLE |
1129 | array_free (periodic, EMPTY); |
1726 | array_free (periodic, EMPTY); |
1130 | #endif |
1727 | #endif |
1131 | #if EV_FORK_ENABLE |
1728 | #if EV_FORK_ENABLE |
1132 | array_free (fork, EMPTY); |
1729 | array_free (fork, EMPTY); |
1133 | #endif |
1730 | #endif |
1134 | array_free (prepare, EMPTY); |
1731 | array_free (prepare, EMPTY); |
1135 | array_free (check, EMPTY); |
1732 | array_free (check, EMPTY); |
|
|
1733 | #if EV_ASYNC_ENABLE |
|
|
1734 | array_free (async, EMPTY); |
|
|
1735 | #endif |
1136 | |
1736 | |
1137 | backend = 0; |
1737 | backend = 0; |
1138 | } |
1738 | } |
1139 | |
1739 | |
|
|
1740 | #if EV_USE_INOTIFY |
1140 | void inline_size infy_fork (EV_P); |
1741 | inline_size void infy_fork (EV_P); |
|
|
1742 | #endif |
1141 | |
1743 | |
1142 | void inline_size |
1744 | inline_size void |
1143 | loop_fork (EV_P) |
1745 | loop_fork (EV_P) |
1144 | { |
1746 | { |
1145 | #if EV_USE_PORT |
1747 | #if EV_USE_PORT |
1146 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1748 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1147 | #endif |
1749 | #endif |
… | |
… | |
1153 | #endif |
1755 | #endif |
1154 | #if EV_USE_INOTIFY |
1756 | #if EV_USE_INOTIFY |
1155 | infy_fork (EV_A); |
1757 | infy_fork (EV_A); |
1156 | #endif |
1758 | #endif |
1157 | |
1759 | |
1158 | if (ev_is_active (&sigev)) |
1760 | if (ev_is_active (&pipe_w)) |
1159 | { |
1761 | { |
1160 | /* default loop */ |
1762 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1763 | /* while we modify the fd vars */ |
|
|
1764 | sig_pending = 1; |
|
|
1765 | #if EV_ASYNC_ENABLE |
|
|
1766 | async_pending = 1; |
|
|
1767 | #endif |
1161 | |
1768 | |
1162 | ev_ref (EV_A); |
1769 | ev_ref (EV_A); |
1163 | ev_io_stop (EV_A_ &sigev); |
1770 | ev_io_stop (EV_A_ &pipe_w); |
1164 | close (sigpipe [0]); |
|
|
1165 | close (sigpipe [1]); |
|
|
1166 | |
1771 | |
1167 | while (pipe (sigpipe)) |
1772 | #if EV_USE_EVENTFD |
1168 | syserr ("(libev) error creating pipe"); |
1773 | if (evfd >= 0) |
|
|
1774 | close (evfd); |
|
|
1775 | #endif |
1169 | |
1776 | |
|
|
1777 | if (evpipe [0] >= 0) |
|
|
1778 | { |
|
|
1779 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1780 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1781 | } |
|
|
1782 | |
1170 | siginit (EV_A); |
1783 | evpipe_init (EV_A); |
|
|
1784 | /* now iterate over everything, in case we missed something */ |
1171 | sigcb (EV_A_ &sigev, EV_READ); |
1785 | pipecb (EV_A_ &pipe_w, EV_READ); |
1172 | } |
1786 | } |
1173 | |
1787 | |
1174 | postfork = 0; |
1788 | postfork = 0; |
1175 | } |
1789 | } |
1176 | |
1790 | |
1177 | #if EV_MULTIPLICITY |
1791 | #if EV_MULTIPLICITY |
|
|
1792 | |
1178 | struct ev_loop * |
1793 | struct ev_loop * |
1179 | ev_loop_new (unsigned int flags) |
1794 | ev_loop_new (unsigned int flags) |
1180 | { |
1795 | { |
1181 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1796 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1182 | |
1797 | |
1183 | memset (loop, 0, sizeof (struct ev_loop)); |
1798 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1184 | |
|
|
1185 | loop_init (EV_A_ flags); |
1799 | loop_init (EV_A_ flags); |
1186 | |
1800 | |
1187 | if (ev_backend (EV_A)) |
1801 | if (ev_backend (EV_A)) |
1188 | return loop; |
1802 | return EV_A; |
1189 | |
1803 | |
1190 | return 0; |
1804 | return 0; |
1191 | } |
1805 | } |
1192 | |
1806 | |
1193 | void |
1807 | void |
… | |
… | |
1200 | void |
1814 | void |
1201 | ev_loop_fork (EV_P) |
1815 | ev_loop_fork (EV_P) |
1202 | { |
1816 | { |
1203 | postfork = 1; /* must be in line with ev_default_fork */ |
1817 | postfork = 1; /* must be in line with ev_default_fork */ |
1204 | } |
1818 | } |
|
|
1819 | #endif /* multiplicity */ |
1205 | |
1820 | |
|
|
1821 | #if EV_VERIFY |
|
|
1822 | static void noinline |
|
|
1823 | verify_watcher (EV_P_ W w) |
|
|
1824 | { |
|
|
1825 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1826 | |
|
|
1827 | if (w->pending) |
|
|
1828 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | static void noinline |
|
|
1832 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1833 | { |
|
|
1834 | int i; |
|
|
1835 | |
|
|
1836 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1837 | { |
|
|
1838 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1839 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1840 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1841 | |
|
|
1842 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1843 | } |
|
|
1844 | } |
|
|
1845 | |
|
|
1846 | static void noinline |
|
|
1847 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1848 | { |
|
|
1849 | while (cnt--) |
|
|
1850 | { |
|
|
1851 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1852 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1853 | } |
|
|
1854 | } |
|
|
1855 | #endif |
|
|
1856 | |
|
|
1857 | #if EV_MINIMAL < 2 |
|
|
1858 | void |
|
|
1859 | ev_loop_verify (EV_P) |
|
|
1860 | { |
|
|
1861 | #if EV_VERIFY |
|
|
1862 | int i; |
|
|
1863 | WL w; |
|
|
1864 | |
|
|
1865 | assert (activecnt >= -1); |
|
|
1866 | |
|
|
1867 | assert (fdchangemax >= fdchangecnt); |
|
|
1868 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1869 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1870 | |
|
|
1871 | assert (anfdmax >= 0); |
|
|
1872 | for (i = 0; i < anfdmax; ++i) |
|
|
1873 | for (w = anfds [i].head; w; w = w->next) |
|
|
1874 | { |
|
|
1875 | verify_watcher (EV_A_ (W)w); |
|
|
1876 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1877 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1878 | } |
|
|
1879 | |
|
|
1880 | assert (timermax >= timercnt); |
|
|
1881 | verify_heap (EV_A_ timers, timercnt); |
|
|
1882 | |
|
|
1883 | #if EV_PERIODIC_ENABLE |
|
|
1884 | assert (periodicmax >= periodiccnt); |
|
|
1885 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1886 | #endif |
|
|
1887 | |
|
|
1888 | for (i = NUMPRI; i--; ) |
|
|
1889 | { |
|
|
1890 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1891 | #if EV_IDLE_ENABLE |
|
|
1892 | assert (idleall >= 0); |
|
|
1893 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1894 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1895 | #endif |
|
|
1896 | } |
|
|
1897 | |
|
|
1898 | #if EV_FORK_ENABLE |
|
|
1899 | assert (forkmax >= forkcnt); |
|
|
1900 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1901 | #endif |
|
|
1902 | |
|
|
1903 | #if EV_ASYNC_ENABLE |
|
|
1904 | assert (asyncmax >= asynccnt); |
|
|
1905 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1906 | #endif |
|
|
1907 | |
|
|
1908 | assert (preparemax >= preparecnt); |
|
|
1909 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1910 | |
|
|
1911 | assert (checkmax >= checkcnt); |
|
|
1912 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1913 | |
|
|
1914 | # if 0 |
|
|
1915 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1916 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1917 | # endif |
|
|
1918 | #endif |
|
|
1919 | } |
1206 | #endif |
1920 | #endif |
1207 | |
1921 | |
1208 | #if EV_MULTIPLICITY |
1922 | #if EV_MULTIPLICITY |
1209 | struct ev_loop * |
1923 | struct ev_loop * |
1210 | ev_default_loop_init (unsigned int flags) |
1924 | ev_default_loop_init (unsigned int flags) |
1211 | #else |
1925 | #else |
1212 | int |
1926 | int |
1213 | ev_default_loop (unsigned int flags) |
1927 | ev_default_loop (unsigned int flags) |
1214 | #endif |
1928 | #endif |
1215 | { |
1929 | { |
1216 | if (sigpipe [0] == sigpipe [1]) |
|
|
1217 | if (pipe (sigpipe)) |
|
|
1218 | return 0; |
|
|
1219 | |
|
|
1220 | if (!ev_default_loop_ptr) |
1930 | if (!ev_default_loop_ptr) |
1221 | { |
1931 | { |
1222 | #if EV_MULTIPLICITY |
1932 | #if EV_MULTIPLICITY |
1223 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1933 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1224 | #else |
1934 | #else |
1225 | ev_default_loop_ptr = 1; |
1935 | ev_default_loop_ptr = 1; |
1226 | #endif |
1936 | #endif |
1227 | |
1937 | |
1228 | loop_init (EV_A_ flags); |
1938 | loop_init (EV_A_ flags); |
1229 | |
1939 | |
1230 | if (ev_backend (EV_A)) |
1940 | if (ev_backend (EV_A)) |
1231 | { |
1941 | { |
1232 | siginit (EV_A); |
|
|
1233 | |
|
|
1234 | #ifndef _WIN32 |
1942 | #ifndef _WIN32 |
1235 | ev_signal_init (&childev, childcb, SIGCHLD); |
1943 | ev_signal_init (&childev, childcb, SIGCHLD); |
1236 | ev_set_priority (&childev, EV_MAXPRI); |
1944 | ev_set_priority (&childev, EV_MAXPRI); |
1237 | ev_signal_start (EV_A_ &childev); |
1945 | ev_signal_start (EV_A_ &childev); |
1238 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1946 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1247 | |
1955 | |
1248 | void |
1956 | void |
1249 | ev_default_destroy (void) |
1957 | ev_default_destroy (void) |
1250 | { |
1958 | { |
1251 | #if EV_MULTIPLICITY |
1959 | #if EV_MULTIPLICITY |
1252 | struct ev_loop *loop = ev_default_loop_ptr; |
1960 | EV_P = ev_default_loop_ptr; |
1253 | #endif |
1961 | #endif |
|
|
1962 | |
|
|
1963 | ev_default_loop_ptr = 0; |
1254 | |
1964 | |
1255 | #ifndef _WIN32 |
1965 | #ifndef _WIN32 |
1256 | ev_ref (EV_A); /* child watcher */ |
1966 | ev_ref (EV_A); /* child watcher */ |
1257 | ev_signal_stop (EV_A_ &childev); |
1967 | ev_signal_stop (EV_A_ &childev); |
1258 | #endif |
1968 | #endif |
1259 | |
1969 | |
1260 | ev_ref (EV_A); /* signal watcher */ |
|
|
1261 | ev_io_stop (EV_A_ &sigev); |
|
|
1262 | |
|
|
1263 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1264 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1265 | |
|
|
1266 | loop_destroy (EV_A); |
1970 | loop_destroy (EV_A); |
1267 | } |
1971 | } |
1268 | |
1972 | |
1269 | void |
1973 | void |
1270 | ev_default_fork (void) |
1974 | ev_default_fork (void) |
1271 | { |
1975 | { |
1272 | #if EV_MULTIPLICITY |
1976 | #if EV_MULTIPLICITY |
1273 | struct ev_loop *loop = ev_default_loop_ptr; |
1977 | EV_P = ev_default_loop_ptr; |
1274 | #endif |
1978 | #endif |
1275 | |
1979 | |
1276 | if (backend) |
|
|
1277 | postfork = 1; /* must be in line with ev_loop_fork */ |
1980 | postfork = 1; /* must be in line with ev_loop_fork */ |
1278 | } |
1981 | } |
1279 | |
1982 | |
1280 | /*****************************************************************************/ |
1983 | /*****************************************************************************/ |
1281 | |
1984 | |
1282 | void |
1985 | void |
1283 | ev_invoke (EV_P_ void *w, int revents) |
1986 | ev_invoke (EV_P_ void *w, int revents) |
1284 | { |
1987 | { |
1285 | EV_CB_INVOKE ((W)w, revents); |
1988 | EV_CB_INVOKE ((W)w, revents); |
1286 | } |
1989 | } |
1287 | |
1990 | |
1288 | void inline_speed |
1991 | unsigned int |
1289 | call_pending (EV_P) |
1992 | ev_pending_count (EV_P) |
|
|
1993 | { |
|
|
1994 | int pri; |
|
|
1995 | unsigned int count = 0; |
|
|
1996 | |
|
|
1997 | for (pri = NUMPRI; pri--; ) |
|
|
1998 | count += pendingcnt [pri]; |
|
|
1999 | |
|
|
2000 | return count; |
|
|
2001 | } |
|
|
2002 | |
|
|
2003 | void noinline |
|
|
2004 | ev_invoke_pending (EV_P) |
1290 | { |
2005 | { |
1291 | int pri; |
2006 | int pri; |
1292 | |
2007 | |
1293 | for (pri = NUMPRI; pri--; ) |
2008 | for (pri = NUMPRI; pri--; ) |
1294 | while (pendingcnt [pri]) |
2009 | while (pendingcnt [pri]) |
1295 | { |
2010 | { |
1296 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2011 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1297 | |
2012 | |
1298 | if (expect_true (p->w)) |
|
|
1299 | { |
|
|
1300 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2013 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2014 | /* ^ this is no longer true, as pending_w could be here */ |
1301 | |
2015 | |
1302 | p->w->pending = 0; |
2016 | p->w->pending = 0; |
1303 | EV_CB_INVOKE (p->w, p->events); |
2017 | EV_CB_INVOKE (p->w, p->events); |
1304 | } |
2018 | EV_FREQUENT_CHECK; |
1305 | } |
2019 | } |
1306 | } |
2020 | } |
1307 | |
2021 | |
1308 | void inline_size |
|
|
1309 | timers_reify (EV_P) |
|
|
1310 | { |
|
|
1311 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1312 | { |
|
|
1313 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1314 | |
|
|
1315 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1316 | |
|
|
1317 | /* first reschedule or stop timer */ |
|
|
1318 | if (w->repeat) |
|
|
1319 | { |
|
|
1320 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1321 | |
|
|
1322 | ((WT)w)->at += w->repeat; |
|
|
1323 | if (((WT)w)->at < mn_now) |
|
|
1324 | ((WT)w)->at = mn_now; |
|
|
1325 | |
|
|
1326 | downheap (timers, timercnt, 0); |
|
|
1327 | } |
|
|
1328 | else |
|
|
1329 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1330 | |
|
|
1331 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1332 | } |
|
|
1333 | } |
|
|
1334 | |
|
|
1335 | #if EV_PERIODIC_ENABLE |
|
|
1336 | void inline_size |
|
|
1337 | periodics_reify (EV_P) |
|
|
1338 | { |
|
|
1339 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1340 | { |
|
|
1341 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1342 | |
|
|
1343 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1344 | |
|
|
1345 | /* first reschedule or stop timer */ |
|
|
1346 | if (w->reschedule_cb) |
|
|
1347 | { |
|
|
1348 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1349 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1350 | downheap (periodics, periodiccnt, 0); |
|
|
1351 | } |
|
|
1352 | else if (w->interval) |
|
|
1353 | { |
|
|
1354 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1355 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1356 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1357 | downheap (periodics, periodiccnt, 0); |
|
|
1358 | } |
|
|
1359 | else |
|
|
1360 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1361 | |
|
|
1362 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1363 | } |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | static void noinline |
|
|
1367 | periodics_reschedule (EV_P) |
|
|
1368 | { |
|
|
1369 | int i; |
|
|
1370 | |
|
|
1371 | /* adjust periodics after time jump */ |
|
|
1372 | for (i = 0; i < periodiccnt; ++i) |
|
|
1373 | { |
|
|
1374 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1375 | |
|
|
1376 | if (w->reschedule_cb) |
|
|
1377 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1378 | else if (w->interval) |
|
|
1379 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1380 | } |
|
|
1381 | |
|
|
1382 | /* now rebuild the heap */ |
|
|
1383 | for (i = periodiccnt >> 1; i--; ) |
|
|
1384 | downheap (periodics, periodiccnt, i); |
|
|
1385 | } |
|
|
1386 | #endif |
|
|
1387 | |
|
|
1388 | #if EV_IDLE_ENABLE |
2022 | #if EV_IDLE_ENABLE |
1389 | void inline_size |
2023 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2024 | /* only when higher priorities are idle" logic */ |
|
|
2025 | inline_size void |
1390 | idle_reify (EV_P) |
2026 | idle_reify (EV_P) |
1391 | { |
2027 | { |
1392 | if (expect_false (idleall)) |
2028 | if (expect_false (idleall)) |
1393 | { |
2029 | { |
1394 | int pri; |
2030 | int pri; |
… | |
… | |
1406 | } |
2042 | } |
1407 | } |
2043 | } |
1408 | } |
2044 | } |
1409 | #endif |
2045 | #endif |
1410 | |
2046 | |
1411 | void inline_speed |
2047 | /* make timers pending */ |
|
|
2048 | inline_size void |
|
|
2049 | timers_reify (EV_P) |
|
|
2050 | { |
|
|
2051 | EV_FREQUENT_CHECK; |
|
|
2052 | |
|
|
2053 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2054 | { |
|
|
2055 | do |
|
|
2056 | { |
|
|
2057 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2058 | |
|
|
2059 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2060 | |
|
|
2061 | /* first reschedule or stop timer */ |
|
|
2062 | if (w->repeat) |
|
|
2063 | { |
|
|
2064 | ev_at (w) += w->repeat; |
|
|
2065 | if (ev_at (w) < mn_now) |
|
|
2066 | ev_at (w) = mn_now; |
|
|
2067 | |
|
|
2068 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2069 | |
|
|
2070 | ANHE_at_cache (timers [HEAP0]); |
|
|
2071 | downheap (timers, timercnt, HEAP0); |
|
|
2072 | } |
|
|
2073 | else |
|
|
2074 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2075 | |
|
|
2076 | EV_FREQUENT_CHECK; |
|
|
2077 | feed_reverse (EV_A_ (W)w); |
|
|
2078 | } |
|
|
2079 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2080 | |
|
|
2081 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
2082 | } |
|
|
2083 | } |
|
|
2084 | |
|
|
2085 | #if EV_PERIODIC_ENABLE |
|
|
2086 | /* make periodics pending */ |
|
|
2087 | inline_size void |
|
|
2088 | periodics_reify (EV_P) |
|
|
2089 | { |
|
|
2090 | EV_FREQUENT_CHECK; |
|
|
2091 | |
|
|
2092 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2093 | { |
|
|
2094 | int feed_count = 0; |
|
|
2095 | |
|
|
2096 | do |
|
|
2097 | { |
|
|
2098 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2099 | |
|
|
2100 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2101 | |
|
|
2102 | /* first reschedule or stop timer */ |
|
|
2103 | if (w->reschedule_cb) |
|
|
2104 | { |
|
|
2105 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2106 | |
|
|
2107 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2108 | |
|
|
2109 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2110 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2111 | } |
|
|
2112 | else if (w->interval) |
|
|
2113 | { |
|
|
2114 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2115 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2116 | /* this might happen because of floating point inexactness */ |
|
|
2117 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2118 | { |
|
|
2119 | ev_at (w) += w->interval; |
|
|
2120 | |
|
|
2121 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2122 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2123 | /* has effectively asked to get triggered more often than possible */ |
|
|
2124 | if (ev_at (w) < ev_rt_now) |
|
|
2125 | ev_at (w) = ev_rt_now; |
|
|
2126 | } |
|
|
2127 | |
|
|
2128 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2129 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2130 | } |
|
|
2131 | else |
|
|
2132 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2133 | |
|
|
2134 | EV_FREQUENT_CHECK; |
|
|
2135 | feed_reverse (EV_A_ (W)w); |
|
|
2136 | } |
|
|
2137 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2138 | |
|
|
2139 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2140 | } |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | /* simply recalculate all periodics */ |
|
|
2144 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2145 | static void noinline |
|
|
2146 | periodics_reschedule (EV_P) |
|
|
2147 | { |
|
|
2148 | int i; |
|
|
2149 | |
|
|
2150 | /* adjust periodics after time jump */ |
|
|
2151 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2152 | { |
|
|
2153 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2154 | |
|
|
2155 | if (w->reschedule_cb) |
|
|
2156 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2157 | else if (w->interval) |
|
|
2158 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2159 | |
|
|
2160 | ANHE_at_cache (periodics [i]); |
|
|
2161 | } |
|
|
2162 | |
|
|
2163 | reheap (periodics, periodiccnt); |
|
|
2164 | } |
|
|
2165 | #endif |
|
|
2166 | |
|
|
2167 | /* adjust all timers by a given offset */ |
|
|
2168 | static void noinline |
|
|
2169 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2170 | { |
|
|
2171 | int i; |
|
|
2172 | |
|
|
2173 | for (i = 0; i < timercnt; ++i) |
|
|
2174 | { |
|
|
2175 | ANHE *he = timers + i + HEAP0; |
|
|
2176 | ANHE_w (*he)->at += adjust; |
|
|
2177 | ANHE_at_cache (*he); |
|
|
2178 | } |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2182 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2183 | inline_speed void |
1412 | time_update (EV_P_ ev_tstamp max_block) |
2184 | time_update (EV_P_ ev_tstamp max_block) |
1413 | { |
2185 | { |
1414 | int i; |
|
|
1415 | |
|
|
1416 | #if EV_USE_MONOTONIC |
2186 | #if EV_USE_MONOTONIC |
1417 | if (expect_true (have_monotonic)) |
2187 | if (expect_true (have_monotonic)) |
1418 | { |
2188 | { |
|
|
2189 | int i; |
1419 | ev_tstamp odiff = rtmn_diff; |
2190 | ev_tstamp odiff = rtmn_diff; |
1420 | |
2191 | |
1421 | mn_now = get_clock (); |
2192 | mn_now = get_clock (); |
1422 | |
2193 | |
1423 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2194 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1441 | */ |
2212 | */ |
1442 | for (i = 4; --i; ) |
2213 | for (i = 4; --i; ) |
1443 | { |
2214 | { |
1444 | rtmn_diff = ev_rt_now - mn_now; |
2215 | rtmn_diff = ev_rt_now - mn_now; |
1445 | |
2216 | |
1446 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2217 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1447 | return; /* all is well */ |
2218 | return; /* all is well */ |
1448 | |
2219 | |
1449 | ev_rt_now = ev_time (); |
2220 | ev_rt_now = ev_time (); |
1450 | mn_now = get_clock (); |
2221 | mn_now = get_clock (); |
1451 | now_floor = mn_now; |
2222 | now_floor = mn_now; |
1452 | } |
2223 | } |
1453 | |
2224 | |
|
|
2225 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2226 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1454 | # if EV_PERIODIC_ENABLE |
2227 | # if EV_PERIODIC_ENABLE |
1455 | periodics_reschedule (EV_A); |
2228 | periodics_reschedule (EV_A); |
1456 | # endif |
2229 | # endif |
1457 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1458 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1459 | } |
2230 | } |
1460 | else |
2231 | else |
1461 | #endif |
2232 | #endif |
1462 | { |
2233 | { |
1463 | ev_rt_now = ev_time (); |
2234 | ev_rt_now = ev_time (); |
1464 | |
2235 | |
1465 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2236 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1466 | { |
2237 | { |
|
|
2238 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2239 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1467 | #if EV_PERIODIC_ENABLE |
2240 | #if EV_PERIODIC_ENABLE |
1468 | periodics_reschedule (EV_A); |
2241 | periodics_reschedule (EV_A); |
1469 | #endif |
2242 | #endif |
1470 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1471 | for (i = 0; i < timercnt; ++i) |
|
|
1472 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1473 | } |
2243 | } |
1474 | |
2244 | |
1475 | mn_now = ev_rt_now; |
2245 | mn_now = ev_rt_now; |
1476 | } |
2246 | } |
1477 | } |
2247 | } |
1478 | |
2248 | |
1479 | void |
2249 | void |
1480 | ev_ref (EV_P) |
|
|
1481 | { |
|
|
1482 | ++activecnt; |
|
|
1483 | } |
|
|
1484 | |
|
|
1485 | void |
|
|
1486 | ev_unref (EV_P) |
|
|
1487 | { |
|
|
1488 | --activecnt; |
|
|
1489 | } |
|
|
1490 | |
|
|
1491 | static int loop_done; |
|
|
1492 | |
|
|
1493 | void |
|
|
1494 | ev_loop (EV_P_ int flags) |
2250 | ev_loop (EV_P_ int flags) |
1495 | { |
2251 | { |
1496 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2252 | #if EV_MINIMAL < 2 |
1497 | ? EVUNLOOP_ONE |
2253 | ++loop_depth; |
1498 | : EVUNLOOP_CANCEL; |
2254 | #endif |
1499 | |
2255 | |
|
|
2256 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2257 | |
|
|
2258 | loop_done = EVUNLOOP_CANCEL; |
|
|
2259 | |
1500 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2260 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1501 | |
2261 | |
1502 | do |
2262 | do |
1503 | { |
2263 | { |
|
|
2264 | #if EV_VERIFY >= 2 |
|
|
2265 | ev_loop_verify (EV_A); |
|
|
2266 | #endif |
|
|
2267 | |
1504 | #ifndef _WIN32 |
2268 | #ifndef _WIN32 |
1505 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2269 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1506 | if (expect_false (getpid () != curpid)) |
2270 | if (expect_false (getpid () != curpid)) |
1507 | { |
2271 | { |
1508 | curpid = getpid (); |
2272 | curpid = getpid (); |
… | |
… | |
1514 | /* we might have forked, so queue fork handlers */ |
2278 | /* we might have forked, so queue fork handlers */ |
1515 | if (expect_false (postfork)) |
2279 | if (expect_false (postfork)) |
1516 | if (forkcnt) |
2280 | if (forkcnt) |
1517 | { |
2281 | { |
1518 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2282 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1519 | call_pending (EV_A); |
2283 | EV_INVOKE_PENDING; |
1520 | } |
2284 | } |
1521 | #endif |
2285 | #endif |
1522 | |
2286 | |
1523 | /* queue prepare watchers (and execute them) */ |
2287 | /* queue prepare watchers (and execute them) */ |
1524 | if (expect_false (preparecnt)) |
2288 | if (expect_false (preparecnt)) |
1525 | { |
2289 | { |
1526 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2290 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1527 | call_pending (EV_A); |
2291 | EV_INVOKE_PENDING; |
1528 | } |
2292 | } |
1529 | |
2293 | |
1530 | if (expect_false (!activecnt)) |
2294 | if (expect_false (loop_done)) |
1531 | break; |
2295 | break; |
1532 | |
2296 | |
1533 | /* we might have forked, so reify kernel state if necessary */ |
2297 | /* we might have forked, so reify kernel state if necessary */ |
1534 | if (expect_false (postfork)) |
2298 | if (expect_false (postfork)) |
1535 | loop_fork (EV_A); |
2299 | loop_fork (EV_A); |
… | |
… | |
1542 | ev_tstamp waittime = 0.; |
2306 | ev_tstamp waittime = 0.; |
1543 | ev_tstamp sleeptime = 0.; |
2307 | ev_tstamp sleeptime = 0.; |
1544 | |
2308 | |
1545 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2309 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1546 | { |
2310 | { |
|
|
2311 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2312 | ev_tstamp prev_mn_now = mn_now; |
|
|
2313 | |
1547 | /* update time to cancel out callback processing overhead */ |
2314 | /* update time to cancel out callback processing overhead */ |
1548 | time_update (EV_A_ 1e100); |
2315 | time_update (EV_A_ 1e100); |
1549 | |
2316 | |
1550 | waittime = MAX_BLOCKTIME; |
2317 | waittime = MAX_BLOCKTIME; |
1551 | |
2318 | |
1552 | if (timercnt) |
2319 | if (timercnt) |
1553 | { |
2320 | { |
1554 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2321 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1555 | if (waittime > to) waittime = to; |
2322 | if (waittime > to) waittime = to; |
1556 | } |
2323 | } |
1557 | |
2324 | |
1558 | #if EV_PERIODIC_ENABLE |
2325 | #if EV_PERIODIC_ENABLE |
1559 | if (periodiccnt) |
2326 | if (periodiccnt) |
1560 | { |
2327 | { |
1561 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2328 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1562 | if (waittime > to) waittime = to; |
2329 | if (waittime > to) waittime = to; |
1563 | } |
2330 | } |
1564 | #endif |
2331 | #endif |
1565 | |
2332 | |
|
|
2333 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1566 | if (expect_false (waittime < timeout_blocktime)) |
2334 | if (expect_false (waittime < timeout_blocktime)) |
1567 | waittime = timeout_blocktime; |
2335 | waittime = timeout_blocktime; |
1568 | |
2336 | |
1569 | sleeptime = waittime - backend_fudge; |
2337 | /* extra check because io_blocktime is commonly 0 */ |
1570 | |
|
|
1571 | if (expect_true (sleeptime > io_blocktime)) |
2338 | if (expect_false (io_blocktime)) |
1572 | sleeptime = io_blocktime; |
|
|
1573 | |
|
|
1574 | if (sleeptime) |
|
|
1575 | { |
2339 | { |
|
|
2340 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2341 | |
|
|
2342 | if (sleeptime > waittime - backend_fudge) |
|
|
2343 | sleeptime = waittime - backend_fudge; |
|
|
2344 | |
|
|
2345 | if (expect_true (sleeptime > 0.)) |
|
|
2346 | { |
1576 | ev_sleep (sleeptime); |
2347 | ev_sleep (sleeptime); |
1577 | waittime -= sleeptime; |
2348 | waittime -= sleeptime; |
|
|
2349 | } |
1578 | } |
2350 | } |
1579 | } |
2351 | } |
1580 | |
2352 | |
|
|
2353 | #if EV_MINIMAL < 2 |
1581 | ++loop_count; |
2354 | ++loop_count; |
|
|
2355 | #endif |
|
|
2356 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1582 | backend_poll (EV_A_ waittime); |
2357 | backend_poll (EV_A_ waittime); |
|
|
2358 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1583 | |
2359 | |
1584 | /* update ev_rt_now, do magic */ |
2360 | /* update ev_rt_now, do magic */ |
1585 | time_update (EV_A_ waittime + sleeptime); |
2361 | time_update (EV_A_ waittime + sleeptime); |
1586 | } |
2362 | } |
1587 | |
2363 | |
… | |
… | |
1598 | |
2374 | |
1599 | /* queue check watchers, to be executed first */ |
2375 | /* queue check watchers, to be executed first */ |
1600 | if (expect_false (checkcnt)) |
2376 | if (expect_false (checkcnt)) |
1601 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2377 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1602 | |
2378 | |
1603 | call_pending (EV_A); |
2379 | EV_INVOKE_PENDING; |
1604 | |
|
|
1605 | } |
2380 | } |
1606 | while (expect_true (activecnt && !loop_done)); |
2381 | while (expect_true ( |
|
|
2382 | activecnt |
|
|
2383 | && !loop_done |
|
|
2384 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2385 | )); |
1607 | |
2386 | |
1608 | if (loop_done == EVUNLOOP_ONE) |
2387 | if (loop_done == EVUNLOOP_ONE) |
1609 | loop_done = EVUNLOOP_CANCEL; |
2388 | loop_done = EVUNLOOP_CANCEL; |
|
|
2389 | |
|
|
2390 | #if EV_MINIMAL < 2 |
|
|
2391 | --loop_depth; |
|
|
2392 | #endif |
1610 | } |
2393 | } |
1611 | |
2394 | |
1612 | void |
2395 | void |
1613 | ev_unloop (EV_P_ int how) |
2396 | ev_unloop (EV_P_ int how) |
1614 | { |
2397 | { |
1615 | loop_done = how; |
2398 | loop_done = how; |
1616 | } |
2399 | } |
1617 | |
2400 | |
|
|
2401 | void |
|
|
2402 | ev_ref (EV_P) |
|
|
2403 | { |
|
|
2404 | ++activecnt; |
|
|
2405 | } |
|
|
2406 | |
|
|
2407 | void |
|
|
2408 | ev_unref (EV_P) |
|
|
2409 | { |
|
|
2410 | --activecnt; |
|
|
2411 | } |
|
|
2412 | |
|
|
2413 | void |
|
|
2414 | ev_now_update (EV_P) |
|
|
2415 | { |
|
|
2416 | time_update (EV_A_ 1e100); |
|
|
2417 | } |
|
|
2418 | |
|
|
2419 | void |
|
|
2420 | ev_suspend (EV_P) |
|
|
2421 | { |
|
|
2422 | ev_now_update (EV_A); |
|
|
2423 | } |
|
|
2424 | |
|
|
2425 | void |
|
|
2426 | ev_resume (EV_P) |
|
|
2427 | { |
|
|
2428 | ev_tstamp mn_prev = mn_now; |
|
|
2429 | |
|
|
2430 | ev_now_update (EV_A); |
|
|
2431 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2432 | #if EV_PERIODIC_ENABLE |
|
|
2433 | /* TODO: really do this? */ |
|
|
2434 | periodics_reschedule (EV_A); |
|
|
2435 | #endif |
|
|
2436 | } |
|
|
2437 | |
1618 | /*****************************************************************************/ |
2438 | /*****************************************************************************/ |
|
|
2439 | /* singly-linked list management, used when the expected list length is short */ |
1619 | |
2440 | |
1620 | void inline_size |
2441 | inline_size void |
1621 | wlist_add (WL *head, WL elem) |
2442 | wlist_add (WL *head, WL elem) |
1622 | { |
2443 | { |
1623 | elem->next = *head; |
2444 | elem->next = *head; |
1624 | *head = elem; |
2445 | *head = elem; |
1625 | } |
2446 | } |
1626 | |
2447 | |
1627 | void inline_size |
2448 | inline_size void |
1628 | wlist_del (WL *head, WL elem) |
2449 | wlist_del (WL *head, WL elem) |
1629 | { |
2450 | { |
1630 | while (*head) |
2451 | while (*head) |
1631 | { |
2452 | { |
1632 | if (*head == elem) |
2453 | if (expect_true (*head == elem)) |
1633 | { |
2454 | { |
1634 | *head = elem->next; |
2455 | *head = elem->next; |
1635 | return; |
2456 | break; |
1636 | } |
2457 | } |
1637 | |
2458 | |
1638 | head = &(*head)->next; |
2459 | head = &(*head)->next; |
1639 | } |
2460 | } |
1640 | } |
2461 | } |
1641 | |
2462 | |
1642 | void inline_speed |
2463 | /* internal, faster, version of ev_clear_pending */ |
|
|
2464 | inline_speed void |
1643 | clear_pending (EV_P_ W w) |
2465 | clear_pending (EV_P_ W w) |
1644 | { |
2466 | { |
1645 | if (w->pending) |
2467 | if (w->pending) |
1646 | { |
2468 | { |
1647 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2469 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1648 | w->pending = 0; |
2470 | w->pending = 0; |
1649 | } |
2471 | } |
1650 | } |
2472 | } |
1651 | |
2473 | |
1652 | int |
2474 | int |
… | |
… | |
1656 | int pending = w_->pending; |
2478 | int pending = w_->pending; |
1657 | |
2479 | |
1658 | if (expect_true (pending)) |
2480 | if (expect_true (pending)) |
1659 | { |
2481 | { |
1660 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2482 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2483 | p->w = (W)&pending_w; |
1661 | w_->pending = 0; |
2484 | w_->pending = 0; |
1662 | p->w = 0; |
|
|
1663 | return p->events; |
2485 | return p->events; |
1664 | } |
2486 | } |
1665 | else |
2487 | else |
1666 | return 0; |
2488 | return 0; |
1667 | } |
2489 | } |
1668 | |
2490 | |
1669 | void inline_size |
2491 | inline_size void |
1670 | pri_adjust (EV_P_ W w) |
2492 | pri_adjust (EV_P_ W w) |
1671 | { |
2493 | { |
1672 | int pri = w->priority; |
2494 | int pri = ev_priority (w); |
1673 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2495 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1674 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2496 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1675 | w->priority = pri; |
2497 | ev_set_priority (w, pri); |
1676 | } |
2498 | } |
1677 | |
2499 | |
1678 | void inline_speed |
2500 | inline_speed void |
1679 | ev_start (EV_P_ W w, int active) |
2501 | ev_start (EV_P_ W w, int active) |
1680 | { |
2502 | { |
1681 | pri_adjust (EV_A_ w); |
2503 | pri_adjust (EV_A_ w); |
1682 | w->active = active; |
2504 | w->active = active; |
1683 | ev_ref (EV_A); |
2505 | ev_ref (EV_A); |
1684 | } |
2506 | } |
1685 | |
2507 | |
1686 | void inline_size |
2508 | inline_size void |
1687 | ev_stop (EV_P_ W w) |
2509 | ev_stop (EV_P_ W w) |
1688 | { |
2510 | { |
1689 | ev_unref (EV_A); |
2511 | ev_unref (EV_A); |
1690 | w->active = 0; |
2512 | w->active = 0; |
1691 | } |
2513 | } |
… | |
… | |
1698 | int fd = w->fd; |
2520 | int fd = w->fd; |
1699 | |
2521 | |
1700 | if (expect_false (ev_is_active (w))) |
2522 | if (expect_false (ev_is_active (w))) |
1701 | return; |
2523 | return; |
1702 | |
2524 | |
1703 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2525 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2526 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2527 | |
|
|
2528 | EV_FREQUENT_CHECK; |
1704 | |
2529 | |
1705 | ev_start (EV_A_ (W)w, 1); |
2530 | ev_start (EV_A_ (W)w, 1); |
1706 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2531 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1707 | wlist_add (&anfds[fd].head, (WL)w); |
2532 | wlist_add (&anfds[fd].head, (WL)w); |
1708 | |
2533 | |
1709 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2534 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1710 | w->events &= ~EV_IOFDSET; |
2535 | w->events &= ~EV__IOFDSET; |
|
|
2536 | |
|
|
2537 | EV_FREQUENT_CHECK; |
1711 | } |
2538 | } |
1712 | |
2539 | |
1713 | void noinline |
2540 | void noinline |
1714 | ev_io_stop (EV_P_ ev_io *w) |
2541 | ev_io_stop (EV_P_ ev_io *w) |
1715 | { |
2542 | { |
1716 | clear_pending (EV_A_ (W)w); |
2543 | clear_pending (EV_A_ (W)w); |
1717 | if (expect_false (!ev_is_active (w))) |
2544 | if (expect_false (!ev_is_active (w))) |
1718 | return; |
2545 | return; |
1719 | |
2546 | |
1720 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2547 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2548 | |
|
|
2549 | EV_FREQUENT_CHECK; |
1721 | |
2550 | |
1722 | wlist_del (&anfds[w->fd].head, (WL)w); |
2551 | wlist_del (&anfds[w->fd].head, (WL)w); |
1723 | ev_stop (EV_A_ (W)w); |
2552 | ev_stop (EV_A_ (W)w); |
1724 | |
2553 | |
1725 | fd_change (EV_A_ w->fd, 1); |
2554 | fd_change (EV_A_ w->fd, 1); |
|
|
2555 | |
|
|
2556 | EV_FREQUENT_CHECK; |
1726 | } |
2557 | } |
1727 | |
2558 | |
1728 | void noinline |
2559 | void noinline |
1729 | ev_timer_start (EV_P_ ev_timer *w) |
2560 | ev_timer_start (EV_P_ ev_timer *w) |
1730 | { |
2561 | { |
1731 | if (expect_false (ev_is_active (w))) |
2562 | if (expect_false (ev_is_active (w))) |
1732 | return; |
2563 | return; |
1733 | |
2564 | |
1734 | ((WT)w)->at += mn_now; |
2565 | ev_at (w) += mn_now; |
1735 | |
2566 | |
1736 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2567 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1737 | |
2568 | |
|
|
2569 | EV_FREQUENT_CHECK; |
|
|
2570 | |
|
|
2571 | ++timercnt; |
1738 | ev_start (EV_A_ (W)w, ++timercnt); |
2572 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1739 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2573 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1740 | timers [timercnt - 1] = (WT)w; |
2574 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1741 | upheap (timers, timercnt - 1); |
2575 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2576 | upheap (timers, ev_active (w)); |
1742 | |
2577 | |
|
|
2578 | EV_FREQUENT_CHECK; |
|
|
2579 | |
1743 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2580 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1744 | } |
2581 | } |
1745 | |
2582 | |
1746 | void noinline |
2583 | void noinline |
1747 | ev_timer_stop (EV_P_ ev_timer *w) |
2584 | ev_timer_stop (EV_P_ ev_timer *w) |
1748 | { |
2585 | { |
1749 | clear_pending (EV_A_ (W)w); |
2586 | clear_pending (EV_A_ (W)w); |
1750 | if (expect_false (!ev_is_active (w))) |
2587 | if (expect_false (!ev_is_active (w))) |
1751 | return; |
2588 | return; |
1752 | |
2589 | |
1753 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2590 | EV_FREQUENT_CHECK; |
1754 | |
2591 | |
1755 | { |
2592 | { |
1756 | int active = ((W)w)->active; |
2593 | int active = ev_active (w); |
1757 | |
2594 | |
|
|
2595 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2596 | |
|
|
2597 | --timercnt; |
|
|
2598 | |
1758 | if (expect_true (--active < --timercnt)) |
2599 | if (expect_true (active < timercnt + HEAP0)) |
1759 | { |
2600 | { |
1760 | timers [active] = timers [timercnt]; |
2601 | timers [active] = timers [timercnt + HEAP0]; |
1761 | adjustheap (timers, timercnt, active); |
2602 | adjustheap (timers, timercnt, active); |
1762 | } |
2603 | } |
1763 | } |
2604 | } |
1764 | |
2605 | |
1765 | ((WT)w)->at -= mn_now; |
2606 | ev_at (w) -= mn_now; |
1766 | |
2607 | |
1767 | ev_stop (EV_A_ (W)w); |
2608 | ev_stop (EV_A_ (W)w); |
|
|
2609 | |
|
|
2610 | EV_FREQUENT_CHECK; |
1768 | } |
2611 | } |
1769 | |
2612 | |
1770 | void noinline |
2613 | void noinline |
1771 | ev_timer_again (EV_P_ ev_timer *w) |
2614 | ev_timer_again (EV_P_ ev_timer *w) |
1772 | { |
2615 | { |
|
|
2616 | EV_FREQUENT_CHECK; |
|
|
2617 | |
1773 | if (ev_is_active (w)) |
2618 | if (ev_is_active (w)) |
1774 | { |
2619 | { |
1775 | if (w->repeat) |
2620 | if (w->repeat) |
1776 | { |
2621 | { |
1777 | ((WT)w)->at = mn_now + w->repeat; |
2622 | ev_at (w) = mn_now + w->repeat; |
|
|
2623 | ANHE_at_cache (timers [ev_active (w)]); |
1778 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2624 | adjustheap (timers, timercnt, ev_active (w)); |
1779 | } |
2625 | } |
1780 | else |
2626 | else |
1781 | ev_timer_stop (EV_A_ w); |
2627 | ev_timer_stop (EV_A_ w); |
1782 | } |
2628 | } |
1783 | else if (w->repeat) |
2629 | else if (w->repeat) |
1784 | { |
2630 | { |
1785 | w->at = w->repeat; |
2631 | ev_at (w) = w->repeat; |
1786 | ev_timer_start (EV_A_ w); |
2632 | ev_timer_start (EV_A_ w); |
1787 | } |
2633 | } |
|
|
2634 | |
|
|
2635 | EV_FREQUENT_CHECK; |
|
|
2636 | } |
|
|
2637 | |
|
|
2638 | ev_tstamp |
|
|
2639 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2640 | { |
|
|
2641 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1788 | } |
2642 | } |
1789 | |
2643 | |
1790 | #if EV_PERIODIC_ENABLE |
2644 | #if EV_PERIODIC_ENABLE |
1791 | void noinline |
2645 | void noinline |
1792 | ev_periodic_start (EV_P_ ev_periodic *w) |
2646 | ev_periodic_start (EV_P_ ev_periodic *w) |
1793 | { |
2647 | { |
1794 | if (expect_false (ev_is_active (w))) |
2648 | if (expect_false (ev_is_active (w))) |
1795 | return; |
2649 | return; |
1796 | |
2650 | |
1797 | if (w->reschedule_cb) |
2651 | if (w->reschedule_cb) |
1798 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2652 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1799 | else if (w->interval) |
2653 | else if (w->interval) |
1800 | { |
2654 | { |
1801 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2655 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1802 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2656 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1803 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2657 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1804 | } |
2658 | } |
1805 | else |
2659 | else |
1806 | ((WT)w)->at = w->offset; |
2660 | ev_at (w) = w->offset; |
1807 | |
2661 | |
|
|
2662 | EV_FREQUENT_CHECK; |
|
|
2663 | |
|
|
2664 | ++periodiccnt; |
1808 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2665 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1809 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2666 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1810 | periodics [periodiccnt - 1] = (WT)w; |
2667 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1811 | upheap (periodics, periodiccnt - 1); |
2668 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2669 | upheap (periodics, ev_active (w)); |
1812 | |
2670 | |
|
|
2671 | EV_FREQUENT_CHECK; |
|
|
2672 | |
1813 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2673 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1814 | } |
2674 | } |
1815 | |
2675 | |
1816 | void noinline |
2676 | void noinline |
1817 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2677 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1818 | { |
2678 | { |
1819 | clear_pending (EV_A_ (W)w); |
2679 | clear_pending (EV_A_ (W)w); |
1820 | if (expect_false (!ev_is_active (w))) |
2680 | if (expect_false (!ev_is_active (w))) |
1821 | return; |
2681 | return; |
1822 | |
2682 | |
1823 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2683 | EV_FREQUENT_CHECK; |
1824 | |
2684 | |
1825 | { |
2685 | { |
1826 | int active = ((W)w)->active; |
2686 | int active = ev_active (w); |
1827 | |
2687 | |
|
|
2688 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2689 | |
|
|
2690 | --periodiccnt; |
|
|
2691 | |
1828 | if (expect_true (--active < --periodiccnt)) |
2692 | if (expect_true (active < periodiccnt + HEAP0)) |
1829 | { |
2693 | { |
1830 | periodics [active] = periodics [periodiccnt]; |
2694 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1831 | adjustheap (periodics, periodiccnt, active); |
2695 | adjustheap (periodics, periodiccnt, active); |
1832 | } |
2696 | } |
1833 | } |
2697 | } |
1834 | |
2698 | |
1835 | ev_stop (EV_A_ (W)w); |
2699 | ev_stop (EV_A_ (W)w); |
|
|
2700 | |
|
|
2701 | EV_FREQUENT_CHECK; |
1836 | } |
2702 | } |
1837 | |
2703 | |
1838 | void noinline |
2704 | void noinline |
1839 | ev_periodic_again (EV_P_ ev_periodic *w) |
2705 | ev_periodic_again (EV_P_ ev_periodic *w) |
1840 | { |
2706 | { |
… | |
… | |
1849 | #endif |
2715 | #endif |
1850 | |
2716 | |
1851 | void noinline |
2717 | void noinline |
1852 | ev_signal_start (EV_P_ ev_signal *w) |
2718 | ev_signal_start (EV_P_ ev_signal *w) |
1853 | { |
2719 | { |
1854 | #if EV_MULTIPLICITY |
|
|
1855 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1856 | #endif |
|
|
1857 | if (expect_false (ev_is_active (w))) |
2720 | if (expect_false (ev_is_active (w))) |
1858 | return; |
2721 | return; |
1859 | |
2722 | |
1860 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2723 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1861 | |
2724 | |
|
|
2725 | #if EV_MULTIPLICITY |
|
|
2726 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2727 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2728 | |
|
|
2729 | signals [w->signum - 1].loop = EV_A; |
|
|
2730 | #endif |
|
|
2731 | |
|
|
2732 | EV_FREQUENT_CHECK; |
|
|
2733 | |
|
|
2734 | #if EV_USE_SIGNALFD |
|
|
2735 | if (sigfd == -2) |
1862 | { |
2736 | { |
1863 | #ifndef _WIN32 |
2737 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
1864 | sigset_t full, prev; |
2738 | if (sigfd < 0 && errno == EINVAL) |
1865 | sigfillset (&full); |
2739 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
1866 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1867 | #endif |
|
|
1868 | |
2740 | |
1869 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2741 | if (sigfd >= 0) |
|
|
2742 | { |
|
|
2743 | fd_intern (sigfd); /* doing it twice will not hurt */ |
1870 | |
2744 | |
1871 | #ifndef _WIN32 |
2745 | sigemptyset (&sigfd_set); |
1872 | sigprocmask (SIG_SETMASK, &prev, 0); |
2746 | |
1873 | #endif |
2747 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2748 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2749 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2750 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2751 | } |
1874 | } |
2752 | } |
|
|
2753 | |
|
|
2754 | if (sigfd >= 0) |
|
|
2755 | { |
|
|
2756 | /* TODO: check .head */ |
|
|
2757 | sigaddset (&sigfd_set, w->signum); |
|
|
2758 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2759 | |
|
|
2760 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2761 | } |
|
|
2762 | #endif |
1875 | |
2763 | |
1876 | ev_start (EV_A_ (W)w, 1); |
2764 | ev_start (EV_A_ (W)w, 1); |
1877 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2765 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1878 | |
2766 | |
1879 | if (!((WL)w)->next) |
2767 | if (!((WL)w)->next) |
|
|
2768 | # if EV_USE_SIGNALFD |
|
|
2769 | if (sigfd < 0) /*TODO*/ |
|
|
2770 | # endif |
1880 | { |
2771 | { |
1881 | #if _WIN32 |
2772 | # ifdef _WIN32 |
|
|
2773 | evpipe_init (EV_A); |
|
|
2774 | |
1882 | signal (w->signum, sighandler); |
2775 | signal (w->signum, ev_sighandler); |
1883 | #else |
2776 | # else |
1884 | struct sigaction sa; |
2777 | struct sigaction sa; |
|
|
2778 | |
|
|
2779 | evpipe_init (EV_A); |
|
|
2780 | |
1885 | sa.sa_handler = sighandler; |
2781 | sa.sa_handler = ev_sighandler; |
1886 | sigfillset (&sa.sa_mask); |
2782 | sigfillset (&sa.sa_mask); |
1887 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2783 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1888 | sigaction (w->signum, &sa, 0); |
2784 | sigaction (w->signum, &sa, 0); |
|
|
2785 | |
|
|
2786 | sigemptyset (&sa.sa_mask); |
|
|
2787 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2788 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
1889 | #endif |
2789 | #endif |
1890 | } |
2790 | } |
|
|
2791 | |
|
|
2792 | EV_FREQUENT_CHECK; |
1891 | } |
2793 | } |
1892 | |
2794 | |
1893 | void noinline |
2795 | void noinline |
1894 | ev_signal_stop (EV_P_ ev_signal *w) |
2796 | ev_signal_stop (EV_P_ ev_signal *w) |
1895 | { |
2797 | { |
1896 | clear_pending (EV_A_ (W)w); |
2798 | clear_pending (EV_A_ (W)w); |
1897 | if (expect_false (!ev_is_active (w))) |
2799 | if (expect_false (!ev_is_active (w))) |
1898 | return; |
2800 | return; |
1899 | |
2801 | |
|
|
2802 | EV_FREQUENT_CHECK; |
|
|
2803 | |
1900 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2804 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1901 | ev_stop (EV_A_ (W)w); |
2805 | ev_stop (EV_A_ (W)w); |
1902 | |
2806 | |
1903 | if (!signals [w->signum - 1].head) |
2807 | if (!signals [w->signum - 1].head) |
|
|
2808 | { |
|
|
2809 | #if EV_MULTIPLICITY |
|
|
2810 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2811 | #endif |
|
|
2812 | #if EV_USE_SIGNALFD |
|
|
2813 | if (sigfd >= 0) |
|
|
2814 | { |
|
|
2815 | sigset_t ss; |
|
|
2816 | |
|
|
2817 | sigemptyset (&ss); |
|
|
2818 | sigaddset (&ss, w->signum); |
|
|
2819 | sigdelset (&sigfd_set, w->signum); |
|
|
2820 | |
|
|
2821 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2822 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2823 | } |
|
|
2824 | else |
|
|
2825 | #endif |
1904 | signal (w->signum, SIG_DFL); |
2826 | signal (w->signum, SIG_DFL); |
|
|
2827 | } |
|
|
2828 | |
|
|
2829 | EV_FREQUENT_CHECK; |
1905 | } |
2830 | } |
1906 | |
2831 | |
1907 | void |
2832 | void |
1908 | ev_child_start (EV_P_ ev_child *w) |
2833 | ev_child_start (EV_P_ ev_child *w) |
1909 | { |
2834 | { |
1910 | #if EV_MULTIPLICITY |
2835 | #if EV_MULTIPLICITY |
1911 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2836 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1912 | #endif |
2837 | #endif |
1913 | if (expect_false (ev_is_active (w))) |
2838 | if (expect_false (ev_is_active (w))) |
1914 | return; |
2839 | return; |
1915 | |
2840 | |
|
|
2841 | EV_FREQUENT_CHECK; |
|
|
2842 | |
1916 | ev_start (EV_A_ (W)w, 1); |
2843 | ev_start (EV_A_ (W)w, 1); |
1917 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2844 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2845 | |
|
|
2846 | EV_FREQUENT_CHECK; |
1918 | } |
2847 | } |
1919 | |
2848 | |
1920 | void |
2849 | void |
1921 | ev_child_stop (EV_P_ ev_child *w) |
2850 | ev_child_stop (EV_P_ ev_child *w) |
1922 | { |
2851 | { |
1923 | clear_pending (EV_A_ (W)w); |
2852 | clear_pending (EV_A_ (W)w); |
1924 | if (expect_false (!ev_is_active (w))) |
2853 | if (expect_false (!ev_is_active (w))) |
1925 | return; |
2854 | return; |
1926 | |
2855 | |
|
|
2856 | EV_FREQUENT_CHECK; |
|
|
2857 | |
1927 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2858 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1928 | ev_stop (EV_A_ (W)w); |
2859 | ev_stop (EV_A_ (W)w); |
|
|
2860 | |
|
|
2861 | EV_FREQUENT_CHECK; |
1929 | } |
2862 | } |
1930 | |
2863 | |
1931 | #if EV_STAT_ENABLE |
2864 | #if EV_STAT_ENABLE |
1932 | |
2865 | |
1933 | # ifdef _WIN32 |
2866 | # ifdef _WIN32 |
1934 | # undef lstat |
2867 | # undef lstat |
1935 | # define lstat(a,b) _stati64 (a,b) |
2868 | # define lstat(a,b) _stati64 (a,b) |
1936 | # endif |
2869 | # endif |
1937 | |
2870 | |
1938 | #define DEF_STAT_INTERVAL 5.0074891 |
2871 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2872 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1939 | #define MIN_STAT_INTERVAL 0.1074891 |
2873 | #define MIN_STAT_INTERVAL 0.1074891 |
1940 | |
2874 | |
1941 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2875 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1942 | |
2876 | |
1943 | #if EV_USE_INOTIFY |
2877 | #if EV_USE_INOTIFY |
1944 | # define EV_INOTIFY_BUFSIZE 8192 |
2878 | |
|
|
2879 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2880 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1945 | |
2881 | |
1946 | static void noinline |
2882 | static void noinline |
1947 | infy_add (EV_P_ ev_stat *w) |
2883 | infy_add (EV_P_ ev_stat *w) |
1948 | { |
2884 | { |
1949 | 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); |
2885 | 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); |
1950 | |
2886 | |
1951 | if (w->wd < 0) |
2887 | if (w->wd >= 0) |
|
|
2888 | { |
|
|
2889 | struct statfs sfs; |
|
|
2890 | |
|
|
2891 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2892 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2893 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2894 | |
|
|
2895 | if (!fs_2625) |
|
|
2896 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2897 | else if (!statfs (w->path, &sfs) |
|
|
2898 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2899 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2900 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2901 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2902 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2903 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2904 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2905 | else |
|
|
2906 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1952 | { |
2907 | } |
1953 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2908 | else |
|
|
2909 | { |
|
|
2910 | /* can't use inotify, continue to stat */ |
|
|
2911 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1954 | |
2912 | |
1955 | /* monitor some parent directory for speedup hints */ |
2913 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
2914 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2915 | /* but an efficiency issue only */ |
1956 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2916 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1957 | { |
2917 | { |
1958 | char path [4096]; |
2918 | char path [4096]; |
1959 | strcpy (path, w->path); |
2919 | strcpy (path, w->path); |
1960 | |
2920 | |
… | |
… | |
1963 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2923 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1964 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2924 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1965 | |
2925 | |
1966 | char *pend = strrchr (path, '/'); |
2926 | char *pend = strrchr (path, '/'); |
1967 | |
2927 | |
1968 | if (!pend) |
2928 | if (!pend || pend == path) |
1969 | break; /* whoops, no '/', complain to your admin */ |
2929 | break; |
1970 | |
2930 | |
1971 | *pend = 0; |
2931 | *pend = 0; |
1972 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2932 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1973 | } |
2933 | } |
1974 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2934 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1975 | } |
2935 | } |
1976 | } |
2936 | } |
1977 | else |
|
|
1978 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1979 | |
2937 | |
1980 | if (w->wd >= 0) |
2938 | if (w->wd >= 0) |
1981 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2939 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2940 | |
|
|
2941 | /* now re-arm timer, if required */ |
|
|
2942 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2943 | ev_timer_again (EV_A_ &w->timer); |
|
|
2944 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1982 | } |
2945 | } |
1983 | |
2946 | |
1984 | static void noinline |
2947 | static void noinline |
1985 | infy_del (EV_P_ ev_stat *w) |
2948 | infy_del (EV_P_ ev_stat *w) |
1986 | { |
2949 | { |
… | |
… | |
2000 | |
2963 | |
2001 | static void noinline |
2964 | static void noinline |
2002 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2965 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2003 | { |
2966 | { |
2004 | if (slot < 0) |
2967 | if (slot < 0) |
2005 | /* overflow, need to check for all hahs slots */ |
2968 | /* overflow, need to check for all hash slots */ |
2006 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2969 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2007 | infy_wd (EV_A_ slot, wd, ev); |
2970 | infy_wd (EV_A_ slot, wd, ev); |
2008 | else |
2971 | else |
2009 | { |
2972 | { |
2010 | WL w_; |
2973 | WL w_; |
… | |
… | |
2016 | |
2979 | |
2017 | if (w->wd == wd || wd == -1) |
2980 | if (w->wd == wd || wd == -1) |
2018 | { |
2981 | { |
2019 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2982 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2020 | { |
2983 | { |
|
|
2984 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2021 | w->wd = -1; |
2985 | w->wd = -1; |
2022 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2986 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2023 | } |
2987 | } |
2024 | |
2988 | |
2025 | stat_timer_cb (EV_A_ &w->timer, 0); |
2989 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2030 | |
2994 | |
2031 | static void |
2995 | static void |
2032 | infy_cb (EV_P_ ev_io *w, int revents) |
2996 | infy_cb (EV_P_ ev_io *w, int revents) |
2033 | { |
2997 | { |
2034 | char buf [EV_INOTIFY_BUFSIZE]; |
2998 | char buf [EV_INOTIFY_BUFSIZE]; |
2035 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2036 | int ofs; |
2999 | int ofs; |
2037 | int len = read (fs_fd, buf, sizeof (buf)); |
3000 | int len = read (fs_fd, buf, sizeof (buf)); |
2038 | |
3001 | |
2039 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3002 | for (ofs = 0; ofs < len; ) |
|
|
3003 | { |
|
|
3004 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2040 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3005 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3006 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3007 | } |
2041 | } |
3008 | } |
2042 | |
3009 | |
2043 | void inline_size |
3010 | inline_size unsigned int |
|
|
3011 | ev_linux_version (void) |
|
|
3012 | { |
|
|
3013 | struct utsname buf; |
|
|
3014 | unsigned int v; |
|
|
3015 | int i; |
|
|
3016 | char *p = buf.release; |
|
|
3017 | |
|
|
3018 | if (uname (&buf)) |
|
|
3019 | return 0; |
|
|
3020 | |
|
|
3021 | for (i = 3+1; --i; ) |
|
|
3022 | { |
|
|
3023 | unsigned int c = 0; |
|
|
3024 | |
|
|
3025 | for (;;) |
|
|
3026 | { |
|
|
3027 | if (*p >= '0' && *p <= '9') |
|
|
3028 | c = c * 10 + *p++ - '0'; |
|
|
3029 | else |
|
|
3030 | { |
|
|
3031 | p += *p == '.'; |
|
|
3032 | break; |
|
|
3033 | } |
|
|
3034 | } |
|
|
3035 | |
|
|
3036 | v = (v << 8) | c; |
|
|
3037 | } |
|
|
3038 | |
|
|
3039 | return v; |
|
|
3040 | } |
|
|
3041 | |
|
|
3042 | inline_size void |
|
|
3043 | ev_check_2625 (EV_P) |
|
|
3044 | { |
|
|
3045 | /* kernels < 2.6.25 are borked |
|
|
3046 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3047 | */ |
|
|
3048 | if (ev_linux_version () < 0x020619) |
|
|
3049 | return; |
|
|
3050 | |
|
|
3051 | fs_2625 = 1; |
|
|
3052 | } |
|
|
3053 | |
|
|
3054 | inline_size int |
|
|
3055 | infy_newfd (void) |
|
|
3056 | { |
|
|
3057 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3058 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3059 | if (fd >= 0) |
|
|
3060 | return fd; |
|
|
3061 | #endif |
|
|
3062 | return inotify_init (); |
|
|
3063 | } |
|
|
3064 | |
|
|
3065 | inline_size void |
2044 | infy_init (EV_P) |
3066 | infy_init (EV_P) |
2045 | { |
3067 | { |
2046 | if (fs_fd != -2) |
3068 | if (fs_fd != -2) |
2047 | return; |
3069 | return; |
2048 | |
3070 | |
|
|
3071 | fs_fd = -1; |
|
|
3072 | |
|
|
3073 | ev_check_2625 (EV_A); |
|
|
3074 | |
2049 | fs_fd = inotify_init (); |
3075 | fs_fd = infy_newfd (); |
2050 | |
3076 | |
2051 | if (fs_fd >= 0) |
3077 | if (fs_fd >= 0) |
2052 | { |
3078 | { |
|
|
3079 | fd_intern (fs_fd); |
2053 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3080 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2054 | ev_set_priority (&fs_w, EV_MAXPRI); |
3081 | ev_set_priority (&fs_w, EV_MAXPRI); |
2055 | ev_io_start (EV_A_ &fs_w); |
3082 | ev_io_start (EV_A_ &fs_w); |
|
|
3083 | ev_unref (EV_A); |
2056 | } |
3084 | } |
2057 | } |
3085 | } |
2058 | |
3086 | |
2059 | void inline_size |
3087 | inline_size void |
2060 | infy_fork (EV_P) |
3088 | infy_fork (EV_P) |
2061 | { |
3089 | { |
2062 | int slot; |
3090 | int slot; |
2063 | |
3091 | |
2064 | if (fs_fd < 0) |
3092 | if (fs_fd < 0) |
2065 | return; |
3093 | return; |
2066 | |
3094 | |
|
|
3095 | ev_ref (EV_A); |
|
|
3096 | ev_io_stop (EV_A_ &fs_w); |
2067 | close (fs_fd); |
3097 | close (fs_fd); |
2068 | fs_fd = inotify_init (); |
3098 | fs_fd = infy_newfd (); |
|
|
3099 | |
|
|
3100 | if (fs_fd >= 0) |
|
|
3101 | { |
|
|
3102 | fd_intern (fs_fd); |
|
|
3103 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3104 | ev_io_start (EV_A_ &fs_w); |
|
|
3105 | ev_unref (EV_A); |
|
|
3106 | } |
2069 | |
3107 | |
2070 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3108 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2071 | { |
3109 | { |
2072 | WL w_ = fs_hash [slot].head; |
3110 | WL w_ = fs_hash [slot].head; |
2073 | fs_hash [slot].head = 0; |
3111 | fs_hash [slot].head = 0; |
… | |
… | |
2080 | w->wd = -1; |
3118 | w->wd = -1; |
2081 | |
3119 | |
2082 | if (fs_fd >= 0) |
3120 | if (fs_fd >= 0) |
2083 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3121 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2084 | else |
3122 | else |
|
|
3123 | { |
|
|
3124 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3125 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2085 | ev_timer_start (EV_A_ &w->timer); |
3126 | ev_timer_again (EV_A_ &w->timer); |
|
|
3127 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3128 | } |
2086 | } |
3129 | } |
2087 | |
|
|
2088 | } |
3130 | } |
2089 | } |
3131 | } |
2090 | |
3132 | |
|
|
3133 | #endif |
|
|
3134 | |
|
|
3135 | #ifdef _WIN32 |
|
|
3136 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3137 | #else |
|
|
3138 | # define EV_LSTAT(p,b) lstat (p, b) |
2091 | #endif |
3139 | #endif |
2092 | |
3140 | |
2093 | void |
3141 | void |
2094 | ev_stat_stat (EV_P_ ev_stat *w) |
3142 | ev_stat_stat (EV_P_ ev_stat *w) |
2095 | { |
3143 | { |
… | |
… | |
2102 | static void noinline |
3150 | static void noinline |
2103 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3151 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2104 | { |
3152 | { |
2105 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3153 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2106 | |
3154 | |
2107 | /* we copy this here each the time so that */ |
3155 | ev_statdata prev = w->attr; |
2108 | /* prev has the old value when the callback gets invoked */ |
|
|
2109 | w->prev = w->attr; |
|
|
2110 | ev_stat_stat (EV_A_ w); |
3156 | ev_stat_stat (EV_A_ w); |
2111 | |
3157 | |
2112 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3158 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2113 | if ( |
3159 | if ( |
2114 | w->prev.st_dev != w->attr.st_dev |
3160 | prev.st_dev != w->attr.st_dev |
2115 | || w->prev.st_ino != w->attr.st_ino |
3161 | || prev.st_ino != w->attr.st_ino |
2116 | || w->prev.st_mode != w->attr.st_mode |
3162 | || prev.st_mode != w->attr.st_mode |
2117 | || w->prev.st_nlink != w->attr.st_nlink |
3163 | || prev.st_nlink != w->attr.st_nlink |
2118 | || w->prev.st_uid != w->attr.st_uid |
3164 | || prev.st_uid != w->attr.st_uid |
2119 | || w->prev.st_gid != w->attr.st_gid |
3165 | || prev.st_gid != w->attr.st_gid |
2120 | || w->prev.st_rdev != w->attr.st_rdev |
3166 | || prev.st_rdev != w->attr.st_rdev |
2121 | || w->prev.st_size != w->attr.st_size |
3167 | || prev.st_size != w->attr.st_size |
2122 | || w->prev.st_atime != w->attr.st_atime |
3168 | || prev.st_atime != w->attr.st_atime |
2123 | || w->prev.st_mtime != w->attr.st_mtime |
3169 | || prev.st_mtime != w->attr.st_mtime |
2124 | || w->prev.st_ctime != w->attr.st_ctime |
3170 | || prev.st_ctime != w->attr.st_ctime |
2125 | ) { |
3171 | ) { |
|
|
3172 | /* we only update w->prev on actual differences */ |
|
|
3173 | /* in case we test more often than invoke the callback, */ |
|
|
3174 | /* to ensure that prev is always different to attr */ |
|
|
3175 | w->prev = prev; |
|
|
3176 | |
2126 | #if EV_USE_INOTIFY |
3177 | #if EV_USE_INOTIFY |
|
|
3178 | if (fs_fd >= 0) |
|
|
3179 | { |
2127 | infy_del (EV_A_ w); |
3180 | infy_del (EV_A_ w); |
2128 | infy_add (EV_A_ w); |
3181 | infy_add (EV_A_ w); |
2129 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3182 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3183 | } |
2130 | #endif |
3184 | #endif |
2131 | |
3185 | |
2132 | ev_feed_event (EV_A_ w, EV_STAT); |
3186 | ev_feed_event (EV_A_ w, EV_STAT); |
2133 | } |
3187 | } |
2134 | } |
3188 | } |
… | |
… | |
2137 | ev_stat_start (EV_P_ ev_stat *w) |
3191 | ev_stat_start (EV_P_ ev_stat *w) |
2138 | { |
3192 | { |
2139 | if (expect_false (ev_is_active (w))) |
3193 | if (expect_false (ev_is_active (w))) |
2140 | return; |
3194 | return; |
2141 | |
3195 | |
2142 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2143 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2144 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2145 | |
|
|
2146 | ev_stat_stat (EV_A_ w); |
3196 | ev_stat_stat (EV_A_ w); |
2147 | |
3197 | |
|
|
3198 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2148 | if (w->interval < MIN_STAT_INTERVAL) |
3199 | w->interval = MIN_STAT_INTERVAL; |
2149 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2150 | |
3200 | |
2151 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3201 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2152 | ev_set_priority (&w->timer, ev_priority (w)); |
3202 | ev_set_priority (&w->timer, ev_priority (w)); |
2153 | |
3203 | |
2154 | #if EV_USE_INOTIFY |
3204 | #if EV_USE_INOTIFY |
2155 | infy_init (EV_A); |
3205 | infy_init (EV_A); |
2156 | |
3206 | |
2157 | if (fs_fd >= 0) |
3207 | if (fs_fd >= 0) |
2158 | infy_add (EV_A_ w); |
3208 | infy_add (EV_A_ w); |
2159 | else |
3209 | else |
2160 | #endif |
3210 | #endif |
|
|
3211 | { |
2161 | ev_timer_start (EV_A_ &w->timer); |
3212 | ev_timer_again (EV_A_ &w->timer); |
|
|
3213 | ev_unref (EV_A); |
|
|
3214 | } |
2162 | |
3215 | |
2163 | ev_start (EV_A_ (W)w, 1); |
3216 | ev_start (EV_A_ (W)w, 1); |
|
|
3217 | |
|
|
3218 | EV_FREQUENT_CHECK; |
2164 | } |
3219 | } |
2165 | |
3220 | |
2166 | void |
3221 | void |
2167 | ev_stat_stop (EV_P_ ev_stat *w) |
3222 | ev_stat_stop (EV_P_ ev_stat *w) |
2168 | { |
3223 | { |
2169 | clear_pending (EV_A_ (W)w); |
3224 | clear_pending (EV_A_ (W)w); |
2170 | if (expect_false (!ev_is_active (w))) |
3225 | if (expect_false (!ev_is_active (w))) |
2171 | return; |
3226 | return; |
2172 | |
3227 | |
|
|
3228 | EV_FREQUENT_CHECK; |
|
|
3229 | |
2173 | #if EV_USE_INOTIFY |
3230 | #if EV_USE_INOTIFY |
2174 | infy_del (EV_A_ w); |
3231 | infy_del (EV_A_ w); |
2175 | #endif |
3232 | #endif |
|
|
3233 | |
|
|
3234 | if (ev_is_active (&w->timer)) |
|
|
3235 | { |
|
|
3236 | ev_ref (EV_A); |
2176 | ev_timer_stop (EV_A_ &w->timer); |
3237 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3238 | } |
2177 | |
3239 | |
2178 | ev_stop (EV_A_ (W)w); |
3240 | ev_stop (EV_A_ (W)w); |
|
|
3241 | |
|
|
3242 | EV_FREQUENT_CHECK; |
2179 | } |
3243 | } |
2180 | #endif |
3244 | #endif |
2181 | |
3245 | |
2182 | #if EV_IDLE_ENABLE |
3246 | #if EV_IDLE_ENABLE |
2183 | void |
3247 | void |
… | |
… | |
2185 | { |
3249 | { |
2186 | if (expect_false (ev_is_active (w))) |
3250 | if (expect_false (ev_is_active (w))) |
2187 | return; |
3251 | return; |
2188 | |
3252 | |
2189 | pri_adjust (EV_A_ (W)w); |
3253 | pri_adjust (EV_A_ (W)w); |
|
|
3254 | |
|
|
3255 | EV_FREQUENT_CHECK; |
2190 | |
3256 | |
2191 | { |
3257 | { |
2192 | int active = ++idlecnt [ABSPRI (w)]; |
3258 | int active = ++idlecnt [ABSPRI (w)]; |
2193 | |
3259 | |
2194 | ++idleall; |
3260 | ++idleall; |
2195 | ev_start (EV_A_ (W)w, active); |
3261 | ev_start (EV_A_ (W)w, active); |
2196 | |
3262 | |
2197 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3263 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2198 | idles [ABSPRI (w)][active - 1] = w; |
3264 | idles [ABSPRI (w)][active - 1] = w; |
2199 | } |
3265 | } |
|
|
3266 | |
|
|
3267 | EV_FREQUENT_CHECK; |
2200 | } |
3268 | } |
2201 | |
3269 | |
2202 | void |
3270 | void |
2203 | ev_idle_stop (EV_P_ ev_idle *w) |
3271 | ev_idle_stop (EV_P_ ev_idle *w) |
2204 | { |
3272 | { |
2205 | clear_pending (EV_A_ (W)w); |
3273 | clear_pending (EV_A_ (W)w); |
2206 | if (expect_false (!ev_is_active (w))) |
3274 | if (expect_false (!ev_is_active (w))) |
2207 | return; |
3275 | return; |
2208 | |
3276 | |
|
|
3277 | EV_FREQUENT_CHECK; |
|
|
3278 | |
2209 | { |
3279 | { |
2210 | int active = ((W)w)->active; |
3280 | int active = ev_active (w); |
2211 | |
3281 | |
2212 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3282 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2213 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3283 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2214 | |
3284 | |
2215 | ev_stop (EV_A_ (W)w); |
3285 | ev_stop (EV_A_ (W)w); |
2216 | --idleall; |
3286 | --idleall; |
2217 | } |
3287 | } |
|
|
3288 | |
|
|
3289 | EV_FREQUENT_CHECK; |
2218 | } |
3290 | } |
2219 | #endif |
3291 | #endif |
2220 | |
3292 | |
2221 | void |
3293 | void |
2222 | ev_prepare_start (EV_P_ ev_prepare *w) |
3294 | ev_prepare_start (EV_P_ ev_prepare *w) |
2223 | { |
3295 | { |
2224 | if (expect_false (ev_is_active (w))) |
3296 | if (expect_false (ev_is_active (w))) |
2225 | return; |
3297 | return; |
|
|
3298 | |
|
|
3299 | EV_FREQUENT_CHECK; |
2226 | |
3300 | |
2227 | ev_start (EV_A_ (W)w, ++preparecnt); |
3301 | ev_start (EV_A_ (W)w, ++preparecnt); |
2228 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3302 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2229 | prepares [preparecnt - 1] = w; |
3303 | prepares [preparecnt - 1] = w; |
|
|
3304 | |
|
|
3305 | EV_FREQUENT_CHECK; |
2230 | } |
3306 | } |
2231 | |
3307 | |
2232 | void |
3308 | void |
2233 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3309 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2234 | { |
3310 | { |
2235 | clear_pending (EV_A_ (W)w); |
3311 | clear_pending (EV_A_ (W)w); |
2236 | if (expect_false (!ev_is_active (w))) |
3312 | if (expect_false (!ev_is_active (w))) |
2237 | return; |
3313 | return; |
2238 | |
3314 | |
|
|
3315 | EV_FREQUENT_CHECK; |
|
|
3316 | |
2239 | { |
3317 | { |
2240 | int active = ((W)w)->active; |
3318 | int active = ev_active (w); |
|
|
3319 | |
2241 | prepares [active - 1] = prepares [--preparecnt]; |
3320 | prepares [active - 1] = prepares [--preparecnt]; |
2242 | ((W)prepares [active - 1])->active = active; |
3321 | ev_active (prepares [active - 1]) = active; |
2243 | } |
3322 | } |
2244 | |
3323 | |
2245 | ev_stop (EV_A_ (W)w); |
3324 | ev_stop (EV_A_ (W)w); |
|
|
3325 | |
|
|
3326 | EV_FREQUENT_CHECK; |
2246 | } |
3327 | } |
2247 | |
3328 | |
2248 | void |
3329 | void |
2249 | ev_check_start (EV_P_ ev_check *w) |
3330 | ev_check_start (EV_P_ ev_check *w) |
2250 | { |
3331 | { |
2251 | if (expect_false (ev_is_active (w))) |
3332 | if (expect_false (ev_is_active (w))) |
2252 | return; |
3333 | return; |
|
|
3334 | |
|
|
3335 | EV_FREQUENT_CHECK; |
2253 | |
3336 | |
2254 | ev_start (EV_A_ (W)w, ++checkcnt); |
3337 | ev_start (EV_A_ (W)w, ++checkcnt); |
2255 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3338 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2256 | checks [checkcnt - 1] = w; |
3339 | checks [checkcnt - 1] = w; |
|
|
3340 | |
|
|
3341 | EV_FREQUENT_CHECK; |
2257 | } |
3342 | } |
2258 | |
3343 | |
2259 | void |
3344 | void |
2260 | ev_check_stop (EV_P_ ev_check *w) |
3345 | ev_check_stop (EV_P_ ev_check *w) |
2261 | { |
3346 | { |
2262 | clear_pending (EV_A_ (W)w); |
3347 | clear_pending (EV_A_ (W)w); |
2263 | if (expect_false (!ev_is_active (w))) |
3348 | if (expect_false (!ev_is_active (w))) |
2264 | return; |
3349 | return; |
2265 | |
3350 | |
|
|
3351 | EV_FREQUENT_CHECK; |
|
|
3352 | |
2266 | { |
3353 | { |
2267 | int active = ((W)w)->active; |
3354 | int active = ev_active (w); |
|
|
3355 | |
2268 | checks [active - 1] = checks [--checkcnt]; |
3356 | checks [active - 1] = checks [--checkcnt]; |
2269 | ((W)checks [active - 1])->active = active; |
3357 | ev_active (checks [active - 1]) = active; |
2270 | } |
3358 | } |
2271 | |
3359 | |
2272 | ev_stop (EV_A_ (W)w); |
3360 | ev_stop (EV_A_ (W)w); |
|
|
3361 | |
|
|
3362 | EV_FREQUENT_CHECK; |
2273 | } |
3363 | } |
2274 | |
3364 | |
2275 | #if EV_EMBED_ENABLE |
3365 | #if EV_EMBED_ENABLE |
2276 | void noinline |
3366 | void noinline |
2277 | ev_embed_sweep (EV_P_ ev_embed *w) |
3367 | ev_embed_sweep (EV_P_ ev_embed *w) |
… | |
… | |
2294 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3384 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2295 | { |
3385 | { |
2296 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3386 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2297 | |
3387 | |
2298 | { |
3388 | { |
2299 | struct ev_loop *loop = w->other; |
3389 | EV_P = w->other; |
2300 | |
3390 | |
2301 | while (fdchangecnt) |
3391 | while (fdchangecnt) |
2302 | { |
3392 | { |
2303 | fd_reify (EV_A); |
3393 | fd_reify (EV_A); |
2304 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3394 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2305 | } |
3395 | } |
2306 | } |
3396 | } |
2307 | } |
3397 | } |
2308 | |
3398 | |
|
|
3399 | static void |
|
|
3400 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3401 | { |
|
|
3402 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3403 | |
|
|
3404 | ev_embed_stop (EV_A_ w); |
|
|
3405 | |
|
|
3406 | { |
|
|
3407 | EV_P = w->other; |
|
|
3408 | |
|
|
3409 | ev_loop_fork (EV_A); |
|
|
3410 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3411 | } |
|
|
3412 | |
|
|
3413 | ev_embed_start (EV_A_ w); |
|
|
3414 | } |
|
|
3415 | |
2309 | #if 0 |
3416 | #if 0 |
2310 | static void |
3417 | static void |
2311 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
3418 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
2312 | { |
3419 | { |
2313 | ev_idle_stop (EV_A_ idle); |
3420 | ev_idle_stop (EV_A_ idle); |
… | |
… | |
2319 | { |
3426 | { |
2320 | if (expect_false (ev_is_active (w))) |
3427 | if (expect_false (ev_is_active (w))) |
2321 | return; |
3428 | return; |
2322 | |
3429 | |
2323 | { |
3430 | { |
2324 | struct ev_loop *loop = w->other; |
3431 | EV_P = w->other; |
2325 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3432 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2326 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3433 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2327 | } |
3434 | } |
|
|
3435 | |
|
|
3436 | EV_FREQUENT_CHECK; |
2328 | |
3437 | |
2329 | ev_set_priority (&w->io, ev_priority (w)); |
3438 | ev_set_priority (&w->io, ev_priority (w)); |
2330 | ev_io_start (EV_A_ &w->io); |
3439 | ev_io_start (EV_A_ &w->io); |
2331 | |
3440 | |
2332 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3441 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2333 | ev_set_priority (&w->prepare, EV_MINPRI); |
3442 | ev_set_priority (&w->prepare, EV_MINPRI); |
2334 | ev_prepare_start (EV_A_ &w->prepare); |
3443 | ev_prepare_start (EV_A_ &w->prepare); |
2335 | |
3444 | |
|
|
3445 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3446 | ev_fork_start (EV_A_ &w->fork); |
|
|
3447 | |
2336 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
3448 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2337 | |
3449 | |
2338 | ev_start (EV_A_ (W)w, 1); |
3450 | ev_start (EV_A_ (W)w, 1); |
|
|
3451 | |
|
|
3452 | EV_FREQUENT_CHECK; |
2339 | } |
3453 | } |
2340 | |
3454 | |
2341 | void |
3455 | void |
2342 | ev_embed_stop (EV_P_ ev_embed *w) |
3456 | ev_embed_stop (EV_P_ ev_embed *w) |
2343 | { |
3457 | { |
2344 | clear_pending (EV_A_ (W)w); |
3458 | clear_pending (EV_A_ (W)w); |
2345 | if (expect_false (!ev_is_active (w))) |
3459 | if (expect_false (!ev_is_active (w))) |
2346 | return; |
3460 | return; |
2347 | |
3461 | |
|
|
3462 | EV_FREQUENT_CHECK; |
|
|
3463 | |
2348 | ev_io_stop (EV_A_ &w->io); |
3464 | ev_io_stop (EV_A_ &w->io); |
2349 | ev_prepare_stop (EV_A_ &w->prepare); |
3465 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3466 | ev_fork_stop (EV_A_ &w->fork); |
2350 | |
3467 | |
2351 | ev_stop (EV_A_ (W)w); |
3468 | ev_stop (EV_A_ (W)w); |
|
|
3469 | |
|
|
3470 | EV_FREQUENT_CHECK; |
2352 | } |
3471 | } |
2353 | #endif |
3472 | #endif |
2354 | |
3473 | |
2355 | #if EV_FORK_ENABLE |
3474 | #if EV_FORK_ENABLE |
2356 | void |
3475 | void |
2357 | ev_fork_start (EV_P_ ev_fork *w) |
3476 | ev_fork_start (EV_P_ ev_fork *w) |
2358 | { |
3477 | { |
2359 | if (expect_false (ev_is_active (w))) |
3478 | if (expect_false (ev_is_active (w))) |
2360 | return; |
3479 | return; |
|
|
3480 | |
|
|
3481 | EV_FREQUENT_CHECK; |
2361 | |
3482 | |
2362 | ev_start (EV_A_ (W)w, ++forkcnt); |
3483 | ev_start (EV_A_ (W)w, ++forkcnt); |
2363 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3484 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2364 | forks [forkcnt - 1] = w; |
3485 | forks [forkcnt - 1] = w; |
|
|
3486 | |
|
|
3487 | EV_FREQUENT_CHECK; |
2365 | } |
3488 | } |
2366 | |
3489 | |
2367 | void |
3490 | void |
2368 | ev_fork_stop (EV_P_ ev_fork *w) |
3491 | ev_fork_stop (EV_P_ ev_fork *w) |
2369 | { |
3492 | { |
2370 | clear_pending (EV_A_ (W)w); |
3493 | clear_pending (EV_A_ (W)w); |
2371 | if (expect_false (!ev_is_active (w))) |
3494 | if (expect_false (!ev_is_active (w))) |
2372 | return; |
3495 | return; |
2373 | |
3496 | |
|
|
3497 | EV_FREQUENT_CHECK; |
|
|
3498 | |
2374 | { |
3499 | { |
2375 | int active = ((W)w)->active; |
3500 | int active = ev_active (w); |
|
|
3501 | |
2376 | forks [active - 1] = forks [--forkcnt]; |
3502 | forks [active - 1] = forks [--forkcnt]; |
2377 | ((W)forks [active - 1])->active = active; |
3503 | ev_active (forks [active - 1]) = active; |
2378 | } |
3504 | } |
2379 | |
3505 | |
2380 | ev_stop (EV_A_ (W)w); |
3506 | ev_stop (EV_A_ (W)w); |
|
|
3507 | |
|
|
3508 | EV_FREQUENT_CHECK; |
|
|
3509 | } |
|
|
3510 | #endif |
|
|
3511 | |
|
|
3512 | #if EV_ASYNC_ENABLE |
|
|
3513 | void |
|
|
3514 | ev_async_start (EV_P_ ev_async *w) |
|
|
3515 | { |
|
|
3516 | if (expect_false (ev_is_active (w))) |
|
|
3517 | return; |
|
|
3518 | |
|
|
3519 | evpipe_init (EV_A); |
|
|
3520 | |
|
|
3521 | EV_FREQUENT_CHECK; |
|
|
3522 | |
|
|
3523 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3524 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3525 | asyncs [asynccnt - 1] = w; |
|
|
3526 | |
|
|
3527 | EV_FREQUENT_CHECK; |
|
|
3528 | } |
|
|
3529 | |
|
|
3530 | void |
|
|
3531 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3532 | { |
|
|
3533 | clear_pending (EV_A_ (W)w); |
|
|
3534 | if (expect_false (!ev_is_active (w))) |
|
|
3535 | return; |
|
|
3536 | |
|
|
3537 | EV_FREQUENT_CHECK; |
|
|
3538 | |
|
|
3539 | { |
|
|
3540 | int active = ev_active (w); |
|
|
3541 | |
|
|
3542 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3543 | ev_active (asyncs [active - 1]) = active; |
|
|
3544 | } |
|
|
3545 | |
|
|
3546 | ev_stop (EV_A_ (W)w); |
|
|
3547 | |
|
|
3548 | EV_FREQUENT_CHECK; |
|
|
3549 | } |
|
|
3550 | |
|
|
3551 | void |
|
|
3552 | ev_async_send (EV_P_ ev_async *w) |
|
|
3553 | { |
|
|
3554 | w->sent = 1; |
|
|
3555 | evpipe_write (EV_A_ &async_pending); |
2381 | } |
3556 | } |
2382 | #endif |
3557 | #endif |
2383 | |
3558 | |
2384 | /*****************************************************************************/ |
3559 | /*****************************************************************************/ |
2385 | |
3560 | |
… | |
… | |
2395 | once_cb (EV_P_ struct ev_once *once, int revents) |
3570 | once_cb (EV_P_ struct ev_once *once, int revents) |
2396 | { |
3571 | { |
2397 | void (*cb)(int revents, void *arg) = once->cb; |
3572 | void (*cb)(int revents, void *arg) = once->cb; |
2398 | void *arg = once->arg; |
3573 | void *arg = once->arg; |
2399 | |
3574 | |
2400 | ev_io_stop (EV_A_ &once->io); |
3575 | ev_io_stop (EV_A_ &once->io); |
2401 | ev_timer_stop (EV_A_ &once->to); |
3576 | ev_timer_stop (EV_A_ &once->to); |
2402 | ev_free (once); |
3577 | ev_free (once); |
2403 | |
3578 | |
2404 | cb (revents, arg); |
3579 | cb (revents, arg); |
2405 | } |
3580 | } |
2406 | |
3581 | |
2407 | static void |
3582 | static void |
2408 | once_cb_io (EV_P_ ev_io *w, int revents) |
3583 | once_cb_io (EV_P_ ev_io *w, int revents) |
2409 | { |
3584 | { |
2410 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3585 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3586 | |
|
|
3587 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2411 | } |
3588 | } |
2412 | |
3589 | |
2413 | static void |
3590 | static void |
2414 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3591 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2415 | { |
3592 | { |
2416 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3593 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3594 | |
|
|
3595 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2417 | } |
3596 | } |
2418 | |
3597 | |
2419 | void |
3598 | void |
2420 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3599 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2421 | { |
3600 | { |
… | |
… | |
2443 | ev_timer_set (&once->to, timeout, 0.); |
3622 | ev_timer_set (&once->to, timeout, 0.); |
2444 | ev_timer_start (EV_A_ &once->to); |
3623 | ev_timer_start (EV_A_ &once->to); |
2445 | } |
3624 | } |
2446 | } |
3625 | } |
2447 | |
3626 | |
|
|
3627 | /*****************************************************************************/ |
|
|
3628 | |
|
|
3629 | #if EV_WALK_ENABLE |
|
|
3630 | void |
|
|
3631 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3632 | { |
|
|
3633 | int i, j; |
|
|
3634 | ev_watcher_list *wl, *wn; |
|
|
3635 | |
|
|
3636 | if (types & (EV_IO | EV_EMBED)) |
|
|
3637 | for (i = 0; i < anfdmax; ++i) |
|
|
3638 | for (wl = anfds [i].head; wl; ) |
|
|
3639 | { |
|
|
3640 | wn = wl->next; |
|
|
3641 | |
|
|
3642 | #if EV_EMBED_ENABLE |
|
|
3643 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3644 | { |
|
|
3645 | if (types & EV_EMBED) |
|
|
3646 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3647 | } |
|
|
3648 | else |
|
|
3649 | #endif |
|
|
3650 | #if EV_USE_INOTIFY |
|
|
3651 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3652 | ; |
|
|
3653 | else |
|
|
3654 | #endif |
|
|
3655 | if ((ev_io *)wl != &pipe_w) |
|
|
3656 | if (types & EV_IO) |
|
|
3657 | cb (EV_A_ EV_IO, wl); |
|
|
3658 | |
|
|
3659 | wl = wn; |
|
|
3660 | } |
|
|
3661 | |
|
|
3662 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3663 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3664 | #if EV_STAT_ENABLE |
|
|
3665 | /*TODO: timer is not always active*/ |
|
|
3666 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3667 | { |
|
|
3668 | if (types & EV_STAT) |
|
|
3669 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3670 | } |
|
|
3671 | else |
|
|
3672 | #endif |
|
|
3673 | if (types & EV_TIMER) |
|
|
3674 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3675 | |
|
|
3676 | #if EV_PERIODIC_ENABLE |
|
|
3677 | if (types & EV_PERIODIC) |
|
|
3678 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3679 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3680 | #endif |
|
|
3681 | |
|
|
3682 | #if EV_IDLE_ENABLE |
|
|
3683 | if (types & EV_IDLE) |
|
|
3684 | for (j = NUMPRI; i--; ) |
|
|
3685 | for (i = idlecnt [j]; i--; ) |
|
|
3686 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3687 | #endif |
|
|
3688 | |
|
|
3689 | #if EV_FORK_ENABLE |
|
|
3690 | if (types & EV_FORK) |
|
|
3691 | for (i = forkcnt; i--; ) |
|
|
3692 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3693 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3694 | #endif |
|
|
3695 | |
|
|
3696 | #if EV_ASYNC_ENABLE |
|
|
3697 | if (types & EV_ASYNC) |
|
|
3698 | for (i = asynccnt; i--; ) |
|
|
3699 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3700 | #endif |
|
|
3701 | |
|
|
3702 | if (types & EV_PREPARE) |
|
|
3703 | for (i = preparecnt; i--; ) |
|
|
3704 | #if EV_EMBED_ENABLE |
|
|
3705 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3706 | #endif |
|
|
3707 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3708 | |
|
|
3709 | if (types & EV_CHECK) |
|
|
3710 | for (i = checkcnt; i--; ) |
|
|
3711 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3712 | |
|
|
3713 | if (types & EV_SIGNAL) |
|
|
3714 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3715 | for (wl = signals [i].head; wl; ) |
|
|
3716 | { |
|
|
3717 | wn = wl->next; |
|
|
3718 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3719 | wl = wn; |
|
|
3720 | } |
|
|
3721 | |
|
|
3722 | if (types & EV_CHILD) |
|
|
3723 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3724 | for (wl = childs [i]; wl; ) |
|
|
3725 | { |
|
|
3726 | wn = wl->next; |
|
|
3727 | cb (EV_A_ EV_CHILD, wl); |
|
|
3728 | wl = wn; |
|
|
3729 | } |
|
|
3730 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3731 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3732 | } |
|
|
3733 | #endif |
|
|
3734 | |
2448 | #if EV_MULTIPLICITY |
3735 | #if EV_MULTIPLICITY |
2449 | #include "ev_wrap.h" |
3736 | #include "ev_wrap.h" |
2450 | #endif |
3737 | #endif |
2451 | |
3738 | |
2452 | #ifdef __cplusplus |
3739 | #ifdef __cplusplus |