1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
57 | # endif |
57 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
58 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
59 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
60 | # endif |
61 | # endif |
61 | # endif |
|
|
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
|
|
63 | # define EV_USE_CLOCK_SYSCALL 0 |
62 | # endif |
64 | # endif |
63 | |
65 | |
64 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
65 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
66 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
67 | # endif |
69 | # endif |
68 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
70 | # endif |
72 | # endif |
71 | # else |
73 | # else |
72 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
73 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
74 | # endif |
76 | # endif |
… | |
… | |
108 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
109 | # endif |
111 | # endif |
110 | # endif |
112 | # endif |
111 | |
113 | |
112 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
115 | # else |
117 | # else |
116 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
117 | # endif |
119 | # endif |
118 | # endif |
120 | # endif |
… | |
… | |
131 | # else |
133 | # else |
132 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
133 | # endif |
135 | # endif |
134 | # endif |
136 | # endif |
135 | |
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 | |
136 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
137 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
138 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
139 | # else |
149 | # else |
140 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
143 | |
153 | |
144 | #endif |
154 | #endif |
145 | |
155 | |
146 | #include <math.h> |
156 | #include <math.h> |
147 | #include <stdlib.h> |
157 | #include <stdlib.h> |
|
|
158 | #include <string.h> |
148 | #include <fcntl.h> |
159 | #include <fcntl.h> |
149 | #include <stddef.h> |
160 | #include <stddef.h> |
150 | |
161 | |
151 | #include <stdio.h> |
162 | #include <stdio.h> |
152 | |
163 | |
153 | #include <assert.h> |
164 | #include <assert.h> |
154 | #include <errno.h> |
165 | #include <errno.h> |
155 | #include <sys/types.h> |
166 | #include <sys/types.h> |
156 | #include <time.h> |
167 | #include <time.h> |
|
|
168 | #include <limits.h> |
157 | |
169 | |
158 | #include <signal.h> |
170 | #include <signal.h> |
159 | |
171 | |
160 | #ifdef EV_H |
172 | #ifdef EV_H |
161 | # include EV_H |
173 | # include EV_H |
… | |
… | |
176 | # endif |
188 | # endif |
177 | #endif |
189 | #endif |
178 | |
190 | |
179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
191 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
180 | |
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 */ |
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217 | # define EV_NSIG 65 |
|
|
218 | #endif |
|
|
219 | |
181 | #ifndef EV_USE_CLOCK_SYSCALL |
220 | #ifndef EV_USE_CLOCK_SYSCALL |
182 | # if __linux && __GLIBC__ >= 2 |
221 | # if __linux && __GLIBC__ >= 2 |
183 | # define EV_USE_CLOCK_SYSCALL 1 |
222 | # define EV_USE_CLOCK_SYSCALL 1 |
184 | # else |
223 | # else |
185 | # define EV_USE_CLOCK_SYSCALL 0 |
224 | # define EV_USE_CLOCK_SYSCALL 0 |
… | |
… | |
193 | # define EV_USE_MONOTONIC 0 |
232 | # define EV_USE_MONOTONIC 0 |
194 | # endif |
233 | # endif |
195 | #endif |
234 | #endif |
196 | |
235 | |
197 | #ifndef EV_USE_REALTIME |
236 | #ifndef EV_USE_REALTIME |
198 | # define EV_USE_REALTIME 0 |
237 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
199 | #endif |
238 | #endif |
200 | |
239 | |
201 | #ifndef EV_USE_NANOSLEEP |
240 | #ifndef EV_USE_NANOSLEEP |
202 | # if _POSIX_C_SOURCE >= 199309L |
241 | # if _POSIX_C_SOURCE >= 199309L |
203 | # define EV_USE_NANOSLEEP 1 |
242 | # define EV_USE_NANOSLEEP 1 |
… | |
… | |
264 | # else |
303 | # else |
265 | # define EV_USE_EVENTFD 0 |
304 | # define EV_USE_EVENTFD 0 |
266 | # endif |
305 | # endif |
267 | #endif |
306 | #endif |
268 | |
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 | |
269 | #if 0 /* debugging */ |
316 | #if 0 /* debugging */ |
270 | # define EV_VERIFY 3 |
317 | # define EV_VERIFY 3 |
271 | # define EV_USE_4HEAP 1 |
318 | # define EV_USE_4HEAP 1 |
272 | # define EV_HEAP_CACHE_AT 1 |
319 | # define EV_HEAP_CACHE_AT 1 |
273 | #endif |
320 | #endif |
… | |
… | |
282 | |
329 | |
283 | #ifndef EV_HEAP_CACHE_AT |
330 | #ifndef EV_HEAP_CACHE_AT |
284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
331 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
285 | #endif |
332 | #endif |
286 | |
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 | |
287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
348 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
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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 |
288 | |
355 | |
289 | #ifndef CLOCK_MONOTONIC |
356 | #ifndef CLOCK_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
357 | # undef EV_USE_MONOTONIC |
291 | # define EV_USE_MONOTONIC 0 |
358 | # define EV_USE_MONOTONIC 0 |
292 | #endif |
359 | #endif |
… | |
… | |
320 | |
387 | |
321 | #if EV_SELECT_IS_WINSOCKET |
388 | #if EV_SELECT_IS_WINSOCKET |
322 | # include <winsock.h> |
389 | # include <winsock.h> |
323 | #endif |
390 | #endif |
324 | |
391 | |
325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
326 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
327 | #if EV_USE_CLOCK_SYSCALL |
|
|
328 | # include <syscall.h> |
|
|
329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
330 | # undef EV_USE_MONOTONIC |
|
|
331 | # define EV_USE_MONOTONIC 1 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #if EV_USE_EVENTFD |
392 | #if EV_USE_EVENTFD |
335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
393 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
336 | # include <stdint.h> |
394 | # include <stdint.h> |
|
|
395 | # ifndef EFD_NONBLOCK |
|
|
396 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
397 | # endif |
|
|
398 | # ifndef EFD_CLOEXEC |
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|
399 | # ifdef O_CLOEXEC |
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400 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
401 | # else |
|
|
402 | # define EFD_CLOEXEC 02000000 |
|
|
403 | # endif |
|
|
404 | # endif |
337 | # ifdef __cplusplus |
405 | # ifdef __cplusplus |
338 | extern "C" { |
406 | extern "C" { |
339 | # endif |
407 | # endif |
340 | int eventfd (unsigned int initval, int flags); |
408 | int (eventfd) (unsigned int initval, int flags); |
341 | # ifdef __cplusplus |
409 | # ifdef __cplusplus |
342 | } |
410 | } |
343 | # endif |
411 | # endif |
344 | #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 |
|
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418 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
419 | # endif |
|
|
420 | # ifndef SFD_CLOEXEC |
|
|
421 | # ifdef O_CLOEXEC |
|
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422 | # define SFD_CLOEXEC O_CLOEXEC |
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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); |
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431 | |
|
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432 | struct signalfd_siginfo |
|
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433 | { |
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434 | uint32_t ssi_signo; |
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435 | char pad[128 - sizeof (uint32_t)]; |
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436 | }; |
|
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437 | # ifdef __cplusplus |
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438 | } |
|
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439 | # endif |
|
|
440 | #endif |
|
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441 | |
345 | |
442 | |
346 | /**/ |
443 | /**/ |
347 | |
444 | |
348 | #if EV_VERIFY >= 3 |
445 | #if EV_VERIFY >= 3 |
349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
446 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
361 | */ |
458 | */ |
362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
459 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
363 | |
460 | |
364 | #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) */ |
365 | #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) */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
367 | |
463 | |
368 | #if __GNUC__ >= 4 |
464 | #if __GNUC__ >= 4 |
369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
465 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
370 | # define noinline __attribute__ ((noinline)) |
466 | # define noinline __attribute__ ((noinline)) |
371 | #else |
467 | #else |
… | |
… | |
384 | # define inline_speed static noinline |
480 | # define inline_speed static noinline |
385 | #else |
481 | #else |
386 | # define inline_speed static inline |
482 | # define inline_speed static inline |
387 | #endif |
483 | #endif |
388 | |
484 | |
389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
485 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
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486 | |
|
|
487 | #if EV_MINPRI == EV_MAXPRI |
|
|
488 | # define ABSPRI(w) (((W)w), 0) |
|
|
489 | #else |
390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
490 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
491 | #endif |
391 | |
492 | |
392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
493 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
494 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
394 | |
495 | |
395 | typedef ev_watcher *W; |
496 | typedef ev_watcher *W; |
… | |
… | |
397 | typedef ev_watcher_time *WT; |
498 | typedef ev_watcher_time *WT; |
398 | |
499 | |
399 | #define ev_active(w) ((W)(w))->active |
500 | #define ev_active(w) ((W)(w))->active |
400 | #define ev_at(w) ((WT)(w))->at |
501 | #define ev_at(w) ((WT)(w))->at |
401 | |
502 | |
402 | #if EV_USE_MONOTONIC |
503 | #if EV_USE_REALTIME |
403 | /* 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 */ |
404 | /* 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? */ |
|
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507 | #endif |
|
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508 | |
|
|
509 | #if EV_USE_MONOTONIC |
405 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
510 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
511 | #endif |
|
|
512 | |
|
|
513 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
514 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
515 | #endif |
|
|
516 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
517 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
518 | #endif |
|
|
519 | #ifndef EV_WIN32_CLOSE_FD |
|
|
520 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
406 | #endif |
521 | #endif |
407 | |
522 | |
408 | #ifdef _WIN32 |
523 | #ifdef _WIN32 |
409 | # include "ev_win32.c" |
524 | # include "ev_win32.c" |
410 | #endif |
525 | #endif |
… | |
… | |
427 | |
542 | |
428 | if (syserr_cb) |
543 | if (syserr_cb) |
429 | syserr_cb (msg); |
544 | syserr_cb (msg); |
430 | else |
545 | else |
431 | { |
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 |
432 | perror (msg); |
554 | perror (msg); |
|
|
555 | #endif |
433 | abort (); |
556 | abort (); |
434 | } |
557 | } |
435 | } |
558 | } |
436 | |
559 | |
437 | static void * |
560 | static void * |
… | |
… | |
462 | { |
585 | { |
463 | ptr = alloc (ptr, size); |
586 | ptr = alloc (ptr, size); |
464 | |
587 | |
465 | if (!ptr && size) |
588 | if (!ptr && size) |
466 | { |
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 |
467 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
594 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
595 | #endif |
468 | abort (); |
596 | abort (); |
469 | } |
597 | } |
470 | |
598 | |
471 | return ptr; |
599 | return ptr; |
472 | } |
600 | } |
… | |
… | |
474 | #define ev_malloc(size) ev_realloc (0, (size)) |
602 | #define ev_malloc(size) ev_realloc (0, (size)) |
475 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
603 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
476 | |
604 | |
477 | /*****************************************************************************/ |
605 | /*****************************************************************************/ |
478 | |
606 | |
|
|
607 | /* set in reify when reification needed */ |
|
|
608 | #define EV_ANFD_REIFY 1 |
|
|
609 | |
|
|
610 | /* file descriptor info structure */ |
479 | typedef struct |
611 | typedef struct |
480 | { |
612 | { |
481 | WL head; |
613 | WL head; |
482 | unsigned char events; |
614 | unsigned char events; /* the events watched for */ |
483 | unsigned char reify; |
615 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
484 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
616 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
485 | unsigned char unused; |
617 | unsigned char unused; |
486 | #if EV_USE_EPOLL |
618 | #if EV_USE_EPOLL |
487 | unsigned int egen; /* generation counter to counter epoll bugs */ |
619 | unsigned int egen; /* generation counter to counter epoll bugs */ |
488 | #endif |
620 | #endif |
489 | #if EV_SELECT_IS_WINSOCKET |
621 | #if EV_SELECT_IS_WINSOCKET |
490 | SOCKET handle; |
622 | SOCKET handle; |
491 | #endif |
623 | #endif |
492 | } ANFD; |
624 | } ANFD; |
493 | |
625 | |
|
|
626 | /* stores the pending event set for a given watcher */ |
494 | typedef struct |
627 | typedef struct |
495 | { |
628 | { |
496 | W w; |
629 | W w; |
497 | int events; |
630 | int events; /* the pending event set for the given watcher */ |
498 | } ANPENDING; |
631 | } ANPENDING; |
499 | |
632 | |
500 | #if EV_USE_INOTIFY |
633 | #if EV_USE_INOTIFY |
501 | /* hash table entry per inotify-id */ |
634 | /* hash table entry per inotify-id */ |
502 | typedef struct |
635 | typedef struct |
… | |
… | |
505 | } ANFS; |
638 | } ANFS; |
506 | #endif |
639 | #endif |
507 | |
640 | |
508 | /* Heap Entry */ |
641 | /* Heap Entry */ |
509 | #if EV_HEAP_CACHE_AT |
642 | #if EV_HEAP_CACHE_AT |
|
|
643 | /* a heap element */ |
510 | typedef struct { |
644 | typedef struct { |
511 | ev_tstamp at; |
645 | ev_tstamp at; |
512 | WT w; |
646 | WT w; |
513 | } ANHE; |
647 | } ANHE; |
514 | |
648 | |
515 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
649 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
516 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
650 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
517 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
651 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
518 | #else |
652 | #else |
|
|
653 | /* a heap element */ |
519 | typedef WT ANHE; |
654 | typedef WT ANHE; |
520 | |
655 | |
521 | #define ANHE_w(he) (he) |
656 | #define ANHE_w(he) (he) |
522 | #define ANHE_at(he) (he)->at |
657 | #define ANHE_at(he) (he)->at |
523 | #define ANHE_at_cache(he) |
658 | #define ANHE_at_cache(he) |
… | |
… | |
547 | |
682 | |
548 | static int ev_default_loop_ptr; |
683 | static int ev_default_loop_ptr; |
549 | |
684 | |
550 | #endif |
685 | #endif |
551 | |
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 | |
552 | /*****************************************************************************/ |
699 | /*****************************************************************************/ |
553 | |
700 | |
|
|
701 | #ifndef EV_HAVE_EV_TIME |
554 | ev_tstamp |
702 | ev_tstamp |
555 | ev_time (void) |
703 | ev_time (void) |
556 | { |
704 | { |
557 | #if EV_USE_REALTIME |
705 | #if EV_USE_REALTIME |
|
|
706 | if (expect_true (have_realtime)) |
|
|
707 | { |
558 | struct timespec ts; |
708 | struct timespec ts; |
559 | clock_gettime (CLOCK_REALTIME, &ts); |
709 | clock_gettime (CLOCK_REALTIME, &ts); |
560 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
710 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
561 | #else |
711 | } |
|
|
712 | #endif |
|
|
713 | |
562 | struct timeval tv; |
714 | struct timeval tv; |
563 | gettimeofday (&tv, 0); |
715 | gettimeofday (&tv, 0); |
564 | return tv.tv_sec + tv.tv_usec * 1e-6; |
716 | return tv.tv_sec + tv.tv_usec * 1e-6; |
565 | #endif |
|
|
566 | } |
717 | } |
|
|
718 | #endif |
567 | |
719 | |
568 | ev_tstamp inline_size |
720 | inline_size ev_tstamp |
569 | get_clock (void) |
721 | get_clock (void) |
570 | { |
722 | { |
571 | #if EV_USE_MONOTONIC |
723 | #if EV_USE_MONOTONIC |
572 | if (expect_true (have_monotonic)) |
724 | if (expect_true (have_monotonic)) |
573 | { |
725 | { |
… | |
… | |
607 | |
759 | |
608 | tv.tv_sec = (time_t)delay; |
760 | tv.tv_sec = (time_t)delay; |
609 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
761 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
610 | |
762 | |
611 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
763 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
612 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
764 | /* something not guaranteed by newer posix versions, but guaranteed */ |
613 | /* by older ones */ |
765 | /* by older ones */ |
614 | select (0, 0, 0, 0, &tv); |
766 | select (0, 0, 0, 0, &tv); |
615 | #endif |
767 | #endif |
616 | } |
768 | } |
617 | } |
769 | } |
618 | |
770 | |
619 | /*****************************************************************************/ |
771 | /*****************************************************************************/ |
620 | |
772 | |
621 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
773 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
622 | |
774 | |
623 | int inline_size |
775 | /* find a suitable new size for the given array, */ |
|
|
776 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
777 | inline_size int |
624 | array_nextsize (int elem, int cur, int cnt) |
778 | array_nextsize (int elem, int cur, int cnt) |
625 | { |
779 | { |
626 | int ncur = cur + 1; |
780 | int ncur = cur + 1; |
627 | |
781 | |
628 | do |
782 | do |
… | |
… | |
669 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
823 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
670 | } |
824 | } |
671 | #endif |
825 | #endif |
672 | |
826 | |
673 | #define array_free(stem, idx) \ |
827 | #define array_free(stem, idx) \ |
674 | 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 |
675 | |
829 | |
676 | /*****************************************************************************/ |
830 | /*****************************************************************************/ |
|
|
831 | |
|
|
832 | /* dummy callback for pending events */ |
|
|
833 | static void noinline |
|
|
834 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
835 | { |
|
|
836 | } |
677 | |
837 | |
678 | void noinline |
838 | void noinline |
679 | ev_feed_event (EV_P_ void *w, int revents) |
839 | ev_feed_event (EV_P_ void *w, int revents) |
680 | { |
840 | { |
681 | W w_ = (W)w; |
841 | W w_ = (W)w; |
… | |
… | |
690 | pendings [pri][w_->pending - 1].w = w_; |
850 | pendings [pri][w_->pending - 1].w = w_; |
691 | pendings [pri][w_->pending - 1].events = revents; |
851 | pendings [pri][w_->pending - 1].events = revents; |
692 | } |
852 | } |
693 | } |
853 | } |
694 | |
854 | |
695 | 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 |
696 | queue_events (EV_P_ W *events, int eventcnt, int type) |
871 | queue_events (EV_P_ W *events, int eventcnt, int type) |
697 | { |
872 | { |
698 | int i; |
873 | int i; |
699 | |
874 | |
700 | for (i = 0; i < eventcnt; ++i) |
875 | for (i = 0; i < eventcnt; ++i) |
701 | ev_feed_event (EV_A_ events [i], type); |
876 | ev_feed_event (EV_A_ events [i], type); |
702 | } |
877 | } |
703 | |
878 | |
704 | /*****************************************************************************/ |
879 | /*****************************************************************************/ |
705 | |
880 | |
706 | void inline_speed |
881 | inline_speed void |
707 | fd_event (EV_P_ int fd, int revents) |
882 | fd_event_nc (EV_P_ int fd, int revents) |
708 | { |
883 | { |
709 | ANFD *anfd = anfds + fd; |
884 | ANFD *anfd = anfds + fd; |
710 | ev_io *w; |
885 | ev_io *w; |
711 | |
886 | |
712 | 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) |
… | |
… | |
716 | if (ev) |
891 | if (ev) |
717 | ev_feed_event (EV_A_ (W)w, ev); |
892 | ev_feed_event (EV_A_ (W)w, ev); |
718 | } |
893 | } |
719 | } |
894 | } |
720 | |
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 | |
721 | void |
907 | void |
722 | ev_feed_fd_event (EV_P_ int fd, int revents) |
908 | ev_feed_fd_event (EV_P_ int fd, int revents) |
723 | { |
909 | { |
724 | if (fd >= 0 && fd < anfdmax) |
910 | if (fd >= 0 && fd < anfdmax) |
725 | fd_event (EV_A_ fd, revents); |
911 | fd_event_nc (EV_A_ fd, revents); |
726 | } |
912 | } |
727 | |
913 | |
728 | 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 |
729 | fd_reify (EV_P) |
917 | fd_reify (EV_P) |
730 | { |
918 | { |
731 | int i; |
919 | int i; |
732 | |
920 | |
733 | for (i = 0; i < fdchangecnt; ++i) |
921 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
743 | |
931 | |
744 | #if EV_SELECT_IS_WINSOCKET |
932 | #if EV_SELECT_IS_WINSOCKET |
745 | if (events) |
933 | if (events) |
746 | { |
934 | { |
747 | unsigned long arg; |
935 | unsigned long arg; |
748 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
749 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
936 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
750 | #else |
|
|
751 | anfd->handle = _get_osfhandle (fd); |
|
|
752 | #endif |
|
|
753 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
937 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
754 | } |
938 | } |
755 | #endif |
939 | #endif |
756 | |
940 | |
757 | { |
941 | { |
… | |
… | |
759 | unsigned char o_reify = anfd->reify; |
943 | unsigned char o_reify = anfd->reify; |
760 | |
944 | |
761 | anfd->reify = 0; |
945 | anfd->reify = 0; |
762 | anfd->events = events; |
946 | anfd->events = events; |
763 | |
947 | |
764 | if (o_events != events || o_reify & EV_IOFDSET) |
948 | if (o_events != events || o_reify & EV__IOFDSET) |
765 | backend_modify (EV_A_ fd, o_events, events); |
949 | backend_modify (EV_A_ fd, o_events, events); |
766 | } |
950 | } |
767 | } |
951 | } |
768 | |
952 | |
769 | fdchangecnt = 0; |
953 | fdchangecnt = 0; |
770 | } |
954 | } |
771 | |
955 | |
772 | void inline_size |
956 | /* something about the given fd changed */ |
|
|
957 | inline_size void |
773 | fd_change (EV_P_ int fd, int flags) |
958 | fd_change (EV_P_ int fd, int flags) |
774 | { |
959 | { |
775 | unsigned char reify = anfds [fd].reify; |
960 | unsigned char reify = anfds [fd].reify; |
776 | anfds [fd].reify |= flags; |
961 | anfds [fd].reify |= flags; |
777 | |
962 | |
… | |
… | |
781 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
966 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
782 | fdchanges [fdchangecnt - 1] = fd; |
967 | fdchanges [fdchangecnt - 1] = fd; |
783 | } |
968 | } |
784 | } |
969 | } |
785 | |
970 | |
786 | void inline_speed |
971 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
972 | inline_speed void |
787 | fd_kill (EV_P_ int fd) |
973 | fd_kill (EV_P_ int fd) |
788 | { |
974 | { |
789 | ev_io *w; |
975 | ev_io *w; |
790 | |
976 | |
791 | while ((w = (ev_io *)anfds [fd].head)) |
977 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
793 | ev_io_stop (EV_A_ w); |
979 | ev_io_stop (EV_A_ w); |
794 | 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); |
795 | } |
981 | } |
796 | } |
982 | } |
797 | |
983 | |
798 | int inline_size |
984 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
985 | inline_size int |
799 | fd_valid (int fd) |
986 | fd_valid (int fd) |
800 | { |
987 | { |
801 | #ifdef _WIN32 |
988 | #ifdef _WIN32 |
802 | return _get_osfhandle (fd) != -1; |
989 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
803 | #else |
990 | #else |
804 | return fcntl (fd, F_GETFD) != -1; |
991 | return fcntl (fd, F_GETFD) != -1; |
805 | #endif |
992 | #endif |
806 | } |
993 | } |
807 | |
994 | |
… | |
… | |
825 | |
1012 | |
826 | for (fd = anfdmax; fd--; ) |
1013 | for (fd = anfdmax; fd--; ) |
827 | if (anfds [fd].events) |
1014 | if (anfds [fd].events) |
828 | { |
1015 | { |
829 | fd_kill (EV_A_ fd); |
1016 | fd_kill (EV_A_ fd); |
830 | return; |
1017 | break; |
831 | } |
1018 | } |
832 | } |
1019 | } |
833 | |
1020 | |
834 | /* 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 */ |
835 | static void noinline |
1022 | static void noinline |
… | |
… | |
840 | for (fd = 0; fd < anfdmax; ++fd) |
1027 | for (fd = 0; fd < anfdmax; ++fd) |
841 | if (anfds [fd].events) |
1028 | if (anfds [fd].events) |
842 | { |
1029 | { |
843 | anfds [fd].events = 0; |
1030 | anfds [fd].events = 0; |
844 | anfds [fd].emask = 0; |
1031 | anfds [fd].emask = 0; |
845 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1032 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
846 | } |
1033 | } |
847 | } |
1034 | } |
848 | |
1035 | |
849 | /*****************************************************************************/ |
1036 | /*****************************************************************************/ |
850 | |
1037 | |
… | |
… | |
866 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
1053 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
867 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
1054 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
868 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
1055 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
869 | |
1056 | |
870 | /* away from the root */ |
1057 | /* away from the root */ |
871 | void inline_speed |
1058 | inline_speed void |
872 | downheap (ANHE *heap, int N, int k) |
1059 | downheap (ANHE *heap, int N, int k) |
873 | { |
1060 | { |
874 | ANHE he = heap [k]; |
1061 | ANHE he = heap [k]; |
875 | ANHE *E = heap + N + HEAP0; |
1062 | ANHE *E = heap + N + HEAP0; |
876 | |
1063 | |
… | |
… | |
916 | #define HEAP0 1 |
1103 | #define HEAP0 1 |
917 | #define HPARENT(k) ((k) >> 1) |
1104 | #define HPARENT(k) ((k) >> 1) |
918 | #define UPHEAP_DONE(p,k) (!(p)) |
1105 | #define UPHEAP_DONE(p,k) (!(p)) |
919 | |
1106 | |
920 | /* away from the root */ |
1107 | /* away from the root */ |
921 | void inline_speed |
1108 | inline_speed void |
922 | downheap (ANHE *heap, int N, int k) |
1109 | downheap (ANHE *heap, int N, int k) |
923 | { |
1110 | { |
924 | ANHE he = heap [k]; |
1111 | ANHE he = heap [k]; |
925 | |
1112 | |
926 | for (;;) |
1113 | for (;;) |
927 | { |
1114 | { |
928 | int c = k << 1; |
1115 | int c = k << 1; |
929 | |
1116 | |
930 | if (c > N + HEAP0 - 1) |
1117 | if (c >= N + HEAP0) |
931 | break; |
1118 | break; |
932 | |
1119 | |
933 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1120 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
934 | ? 1 : 0; |
1121 | ? 1 : 0; |
935 | |
1122 | |
… | |
… | |
946 | ev_active (ANHE_w (he)) = k; |
1133 | ev_active (ANHE_w (he)) = k; |
947 | } |
1134 | } |
948 | #endif |
1135 | #endif |
949 | |
1136 | |
950 | /* towards the root */ |
1137 | /* towards the root */ |
951 | void inline_speed |
1138 | inline_speed void |
952 | upheap (ANHE *heap, int k) |
1139 | upheap (ANHE *heap, int k) |
953 | { |
1140 | { |
954 | ANHE he = heap [k]; |
1141 | ANHE he = heap [k]; |
955 | |
1142 | |
956 | for (;;) |
1143 | for (;;) |
… | |
… | |
967 | |
1154 | |
968 | heap [k] = he; |
1155 | heap [k] = he; |
969 | ev_active (ANHE_w (he)) = k; |
1156 | ev_active (ANHE_w (he)) = k; |
970 | } |
1157 | } |
971 | |
1158 | |
972 | void inline_size |
1159 | /* move an element suitably so it is in a correct place */ |
|
|
1160 | inline_size void |
973 | adjustheap (ANHE *heap, int N, int k) |
1161 | adjustheap (ANHE *heap, int N, int k) |
974 | { |
1162 | { |
975 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1163 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
976 | upheap (heap, k); |
1164 | upheap (heap, k); |
977 | else |
1165 | else |
978 | downheap (heap, N, k); |
1166 | downheap (heap, N, k); |
979 | } |
1167 | } |
980 | |
1168 | |
981 | /* rebuild the heap: this function is used only once and executed rarely */ |
1169 | /* rebuild the heap: this function is used only once and executed rarely */ |
982 | void inline_size |
1170 | inline_size void |
983 | reheap (ANHE *heap, int N) |
1171 | reheap (ANHE *heap, int N) |
984 | { |
1172 | { |
985 | int i; |
1173 | int i; |
986 | |
1174 | |
987 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
1175 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
… | |
… | |
990 | upheap (heap, i + HEAP0); |
1178 | upheap (heap, i + HEAP0); |
991 | } |
1179 | } |
992 | |
1180 | |
993 | /*****************************************************************************/ |
1181 | /*****************************************************************************/ |
994 | |
1182 | |
|
|
1183 | /* associate signal watchers to a signal signal */ |
995 | typedef struct |
1184 | typedef struct |
996 | { |
1185 | { |
|
|
1186 | EV_ATOMIC_T pending; |
|
|
1187 | #if EV_MULTIPLICITY |
|
|
1188 | EV_P; |
|
|
1189 | #endif |
997 | WL head; |
1190 | WL head; |
998 | EV_ATOMIC_T gotsig; |
|
|
999 | } ANSIG; |
1191 | } ANSIG; |
1000 | |
1192 | |
1001 | static ANSIG *signals; |
1193 | static ANSIG signals [EV_NSIG - 1]; |
1002 | static int signalmax; |
|
|
1003 | |
|
|
1004 | static EV_ATOMIC_T gotsig; |
|
|
1005 | |
1194 | |
1006 | /*****************************************************************************/ |
1195 | /*****************************************************************************/ |
1007 | |
1196 | |
1008 | void inline_speed |
1197 | /* used to prepare libev internal fd's */ |
|
|
1198 | /* this is not fork-safe */ |
|
|
1199 | inline_speed void |
1009 | fd_intern (int fd) |
1200 | fd_intern (int fd) |
1010 | { |
1201 | { |
1011 | #ifdef _WIN32 |
1202 | #ifdef _WIN32 |
1012 | unsigned long arg = 1; |
1203 | unsigned long arg = 1; |
1013 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1204 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
1014 | #else |
1205 | #else |
1015 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1206 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1016 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1207 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1017 | #endif |
1208 | #endif |
1018 | } |
1209 | } |
1019 | |
1210 | |
1020 | static void noinline |
1211 | static void noinline |
1021 | evpipe_init (EV_P) |
1212 | evpipe_init (EV_P) |
1022 | { |
1213 | { |
1023 | if (!ev_is_active (&pipeev)) |
1214 | if (!ev_is_active (&pipe_w)) |
1024 | { |
1215 | { |
1025 | #if EV_USE_EVENTFD |
1216 | #if EV_USE_EVENTFD |
|
|
1217 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1218 | if (evfd < 0 && errno == EINVAL) |
1026 | if ((evfd = eventfd (0, 0)) >= 0) |
1219 | evfd = eventfd (0, 0); |
|
|
1220 | |
|
|
1221 | if (evfd >= 0) |
1027 | { |
1222 | { |
1028 | evpipe [0] = -1; |
1223 | evpipe [0] = -1; |
1029 | fd_intern (evfd); |
1224 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1030 | ev_io_set (&pipeev, evfd, EV_READ); |
1225 | ev_io_set (&pipe_w, evfd, EV_READ); |
1031 | } |
1226 | } |
1032 | else |
1227 | else |
1033 | #endif |
1228 | #endif |
1034 | { |
1229 | { |
1035 | while (pipe (evpipe)) |
1230 | while (pipe (evpipe)) |
1036 | ev_syserr ("(libev) error creating signal/async pipe"); |
1231 | ev_syserr ("(libev) error creating signal/async pipe"); |
1037 | |
1232 | |
1038 | fd_intern (evpipe [0]); |
1233 | fd_intern (evpipe [0]); |
1039 | fd_intern (evpipe [1]); |
1234 | fd_intern (evpipe [1]); |
1040 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
1235 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1041 | } |
1236 | } |
1042 | |
1237 | |
1043 | ev_io_start (EV_A_ &pipeev); |
1238 | ev_io_start (EV_A_ &pipe_w); |
1044 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1239 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1045 | } |
1240 | } |
1046 | } |
1241 | } |
1047 | |
1242 | |
1048 | void inline_size |
1243 | inline_size void |
1049 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1244 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1050 | { |
1245 | { |
1051 | if (!*flag) |
1246 | if (!*flag) |
1052 | { |
1247 | { |
1053 | int old_errno = errno; /* save errno because write might clobber it */ |
1248 | int old_errno = errno; /* save errno because write might clobber it */ |
… | |
… | |
1066 | |
1261 | |
1067 | errno = old_errno; |
1262 | errno = old_errno; |
1068 | } |
1263 | } |
1069 | } |
1264 | } |
1070 | |
1265 | |
|
|
1266 | /* called whenever the libev signal pipe */ |
|
|
1267 | /* got some events (signal, async) */ |
1071 | static void |
1268 | static void |
1072 | pipecb (EV_P_ ev_io *iow, int revents) |
1269 | pipecb (EV_P_ ev_io *iow, int revents) |
1073 | { |
1270 | { |
|
|
1271 | int i; |
|
|
1272 | |
1074 | #if EV_USE_EVENTFD |
1273 | #if EV_USE_EVENTFD |
1075 | if (evfd >= 0) |
1274 | if (evfd >= 0) |
1076 | { |
1275 | { |
1077 | uint64_t counter; |
1276 | uint64_t counter; |
1078 | read (evfd, &counter, sizeof (uint64_t)); |
1277 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1082 | { |
1281 | { |
1083 | char dummy; |
1282 | char dummy; |
1084 | read (evpipe [0], &dummy, 1); |
1283 | read (evpipe [0], &dummy, 1); |
1085 | } |
1284 | } |
1086 | |
1285 | |
1087 | if (gotsig && ev_is_default_loop (EV_A)) |
1286 | if (sig_pending) |
1088 | { |
1287 | { |
1089 | int signum; |
1288 | sig_pending = 0; |
1090 | gotsig = 0; |
|
|
1091 | |
1289 | |
1092 | for (signum = signalmax; signum--; ) |
1290 | for (i = EV_NSIG - 1; i--; ) |
1093 | if (signals [signum].gotsig) |
1291 | if (expect_false (signals [i].pending)) |
1094 | ev_feed_signal_event (EV_A_ signum + 1); |
1292 | ev_feed_signal_event (EV_A_ i + 1); |
1095 | } |
1293 | } |
1096 | |
1294 | |
1097 | #if EV_ASYNC_ENABLE |
1295 | #if EV_ASYNC_ENABLE |
1098 | if (gotasync) |
1296 | if (async_pending) |
1099 | { |
1297 | { |
1100 | int i; |
1298 | async_pending = 0; |
1101 | gotasync = 0; |
|
|
1102 | |
1299 | |
1103 | for (i = asynccnt; i--; ) |
1300 | for (i = asynccnt; i--; ) |
1104 | if (asyncs [i]->sent) |
1301 | if (asyncs [i]->sent) |
1105 | { |
1302 | { |
1106 | asyncs [i]->sent = 0; |
1303 | asyncs [i]->sent = 0; |
… | |
… | |
1114 | |
1311 | |
1115 | static void |
1312 | static void |
1116 | ev_sighandler (int signum) |
1313 | ev_sighandler (int signum) |
1117 | { |
1314 | { |
1118 | #if EV_MULTIPLICITY |
1315 | #if EV_MULTIPLICITY |
1119 | struct ev_loop *loop = &default_loop_struct; |
1316 | EV_P = signals [signum - 1].loop; |
1120 | #endif |
1317 | #endif |
1121 | |
1318 | |
1122 | #if _WIN32 |
1319 | #ifdef _WIN32 |
1123 | signal (signum, ev_sighandler); |
1320 | signal (signum, ev_sighandler); |
1124 | #endif |
1321 | #endif |
1125 | |
1322 | |
1126 | signals [signum - 1].gotsig = 1; |
1323 | signals [signum - 1].pending = 1; |
1127 | evpipe_write (EV_A_ &gotsig); |
1324 | evpipe_write (EV_A_ &sig_pending); |
1128 | } |
1325 | } |
1129 | |
1326 | |
1130 | void noinline |
1327 | void noinline |
1131 | ev_feed_signal_event (EV_P_ int signum) |
1328 | ev_feed_signal_event (EV_P_ int signum) |
1132 | { |
1329 | { |
1133 | WL w; |
1330 | WL w; |
1134 | |
1331 | |
|
|
1332 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1333 | return; |
|
|
1334 | |
|
|
1335 | --signum; |
|
|
1336 | |
1135 | #if EV_MULTIPLICITY |
1337 | #if EV_MULTIPLICITY |
1136 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1338 | /* it is permissible to try to feed a signal to the wrong loop */ |
1137 | #endif |
1339 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1138 | |
1340 | |
1139 | --signum; |
1341 | if (expect_false (signals [signum].loop != EV_A)) |
1140 | |
|
|
1141 | if (signum < 0 || signum >= signalmax) |
|
|
1142 | return; |
1342 | return; |
|
|
1343 | #endif |
1143 | |
1344 | |
1144 | signals [signum].gotsig = 0; |
1345 | signals [signum].pending = 0; |
1145 | |
1346 | |
1146 | for (w = signals [signum].head; w; w = w->next) |
1347 | for (w = signals [signum].head; w; w = w->next) |
1147 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1348 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1148 | } |
1349 | } |
1149 | |
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 | |
1150 | /*****************************************************************************/ |
1371 | /*****************************************************************************/ |
1151 | |
1372 | |
1152 | static WL childs [EV_PID_HASHSIZE]; |
1373 | static WL childs [EV_PID_HASHSIZE]; |
1153 | |
1374 | |
1154 | #ifndef _WIN32 |
1375 | #ifndef _WIN32 |
… | |
… | |
1157 | |
1378 | |
1158 | #ifndef WIFCONTINUED |
1379 | #ifndef WIFCONTINUED |
1159 | # define WIFCONTINUED(status) 0 |
1380 | # define WIFCONTINUED(status) 0 |
1160 | #endif |
1381 | #endif |
1161 | |
1382 | |
1162 | void inline_speed |
1383 | /* handle a single child status event */ |
|
|
1384 | inline_speed void |
1163 | child_reap (EV_P_ int chain, int pid, int status) |
1385 | child_reap (EV_P_ int chain, int pid, int status) |
1164 | { |
1386 | { |
1165 | ev_child *w; |
1387 | ev_child *w; |
1166 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1388 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
1167 | |
1389 | |
… | |
… | |
1180 | |
1402 | |
1181 | #ifndef WCONTINUED |
1403 | #ifndef WCONTINUED |
1182 | # define WCONTINUED 0 |
1404 | # define WCONTINUED 0 |
1183 | #endif |
1405 | #endif |
1184 | |
1406 | |
|
|
1407 | /* called on sigchld etc., calls waitpid */ |
1185 | static void |
1408 | static void |
1186 | childcb (EV_P_ ev_signal *sw, int revents) |
1409 | childcb (EV_P_ ev_signal *sw, int revents) |
1187 | { |
1410 | { |
1188 | int pid, status; |
1411 | int pid, status; |
1189 | |
1412 | |
… | |
… | |
1296 | ev_backend (EV_P) |
1519 | ev_backend (EV_P) |
1297 | { |
1520 | { |
1298 | return backend; |
1521 | return backend; |
1299 | } |
1522 | } |
1300 | |
1523 | |
|
|
1524 | #if EV_MINIMAL < 2 |
1301 | unsigned int |
1525 | unsigned int |
1302 | ev_loop_count (EV_P) |
1526 | ev_loop_count (EV_P) |
1303 | { |
1527 | { |
1304 | return loop_count; |
1528 | return loop_count; |
1305 | } |
1529 | } |
1306 | |
1530 | |
|
|
1531 | unsigned int |
|
|
1532 | ev_loop_depth (EV_P) |
|
|
1533 | { |
|
|
1534 | return loop_depth; |
|
|
1535 | } |
|
|
1536 | |
1307 | void |
1537 | void |
1308 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1538 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1309 | { |
1539 | { |
1310 | io_blocktime = interval; |
1540 | io_blocktime = interval; |
1311 | } |
1541 | } |
… | |
… | |
1314 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1544 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1315 | { |
1545 | { |
1316 | timeout_blocktime = interval; |
1546 | timeout_blocktime = interval; |
1317 | } |
1547 | } |
1318 | |
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 */ |
1319 | static void noinline |
1574 | static void noinline |
1320 | loop_init (EV_P_ unsigned int flags) |
1575 | loop_init (EV_P_ unsigned int flags) |
1321 | { |
1576 | { |
1322 | if (!backend) |
1577 | if (!backend) |
1323 | { |
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 | |
1324 | #if EV_USE_MONOTONIC |
1589 | #if EV_USE_MONOTONIC |
|
|
1590 | if (!have_monotonic) |
1325 | { |
1591 | { |
1326 | struct timespec ts; |
1592 | struct timespec ts; |
|
|
1593 | |
1327 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1594 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1328 | have_monotonic = 1; |
1595 | have_monotonic = 1; |
1329 | } |
1596 | } |
1330 | #endif |
1597 | #endif |
|
|
1598 | |
|
|
1599 | /* pid check not overridable via env */ |
|
|
1600 | #ifndef _WIN32 |
|
|
1601 | if (flags & EVFLAG_FORKCHECK) |
|
|
1602 | curpid = getpid (); |
|
|
1603 | #endif |
|
|
1604 | |
|
|
1605 | if (!(flags & EVFLAG_NOENV) |
|
|
1606 | && !enable_secure () |
|
|
1607 | && getenv ("LIBEV_FLAGS")) |
|
|
1608 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1331 | |
1609 | |
1332 | ev_rt_now = ev_time (); |
1610 | ev_rt_now = ev_time (); |
1333 | mn_now = get_clock (); |
1611 | mn_now = get_clock (); |
1334 | now_floor = mn_now; |
1612 | now_floor = mn_now; |
1335 | rtmn_diff = ev_rt_now - mn_now; |
1613 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1614 | #if EV_MINIMAL < 2 |
|
|
1615 | invoke_cb = ev_invoke_pending; |
|
|
1616 | #endif |
1336 | |
1617 | |
1337 | io_blocktime = 0.; |
1618 | io_blocktime = 0.; |
1338 | timeout_blocktime = 0.; |
1619 | timeout_blocktime = 0.; |
1339 | backend = 0; |
1620 | backend = 0; |
1340 | backend_fd = -1; |
1621 | backend_fd = -1; |
1341 | gotasync = 0; |
1622 | sig_pending = 0; |
|
|
1623 | #if EV_ASYNC_ENABLE |
|
|
1624 | async_pending = 0; |
|
|
1625 | #endif |
1342 | #if EV_USE_INOTIFY |
1626 | #if EV_USE_INOTIFY |
1343 | fs_fd = -2; |
1627 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1344 | #endif |
1628 | #endif |
1345 | |
1629 | #if EV_USE_SIGNALFD |
1346 | /* pid check not overridable via env */ |
1630 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1347 | #ifndef _WIN32 |
|
|
1348 | if (flags & EVFLAG_FORKCHECK) |
|
|
1349 | curpid = getpid (); |
|
|
1350 | #endif |
1631 | #endif |
1351 | |
|
|
1352 | if (!(flags & EVFLAG_NOENV) |
|
|
1353 | && !enable_secure () |
|
|
1354 | && getenv ("LIBEV_FLAGS")) |
|
|
1355 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1356 | |
1632 | |
1357 | if (!(flags & 0x0000ffffU)) |
1633 | if (!(flags & 0x0000ffffU)) |
1358 | flags |= ev_recommended_backends (); |
1634 | flags |= ev_recommended_backends (); |
1359 | |
1635 | |
1360 | #if EV_USE_PORT |
1636 | #if EV_USE_PORT |
… | |
… | |
1371 | #endif |
1647 | #endif |
1372 | #if EV_USE_SELECT |
1648 | #if EV_USE_SELECT |
1373 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1649 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1374 | #endif |
1650 | #endif |
1375 | |
1651 | |
|
|
1652 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1653 | |
1376 | ev_init (&pipeev, pipecb); |
1654 | ev_init (&pipe_w, pipecb); |
1377 | ev_set_priority (&pipeev, EV_MAXPRI); |
1655 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1378 | } |
1656 | } |
1379 | } |
1657 | } |
1380 | |
1658 | |
|
|
1659 | /* free up a loop structure */ |
1381 | static void noinline |
1660 | static void noinline |
1382 | loop_destroy (EV_P) |
1661 | loop_destroy (EV_P) |
1383 | { |
1662 | { |
1384 | int i; |
1663 | int i; |
1385 | |
1664 | |
1386 | if (ev_is_active (&pipeev)) |
1665 | if (ev_is_active (&pipe_w)) |
1387 | { |
1666 | { |
1388 | ev_ref (EV_A); /* signal watcher */ |
1667 | /*ev_ref (EV_A);*/ |
1389 | ev_io_stop (EV_A_ &pipeev); |
1668 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1390 | |
1669 | |
1391 | #if EV_USE_EVENTFD |
1670 | #if EV_USE_EVENTFD |
1392 | if (evfd >= 0) |
1671 | if (evfd >= 0) |
1393 | close (evfd); |
1672 | close (evfd); |
1394 | #endif |
1673 | #endif |
1395 | |
1674 | |
1396 | if (evpipe [0] >= 0) |
1675 | if (evpipe [0] >= 0) |
1397 | { |
1676 | { |
1398 | close (evpipe [0]); |
1677 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1399 | close (evpipe [1]); |
1678 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1400 | } |
1679 | } |
1401 | } |
1680 | } |
|
|
1681 | |
|
|
1682 | #if EV_USE_SIGNALFD |
|
|
1683 | if (ev_is_active (&sigfd_w)) |
|
|
1684 | close (sigfd); |
|
|
1685 | #endif |
1402 | |
1686 | |
1403 | #if EV_USE_INOTIFY |
1687 | #if EV_USE_INOTIFY |
1404 | if (fs_fd >= 0) |
1688 | if (fs_fd >= 0) |
1405 | close (fs_fd); |
1689 | close (fs_fd); |
1406 | #endif |
1690 | #endif |
… | |
… | |
1430 | #if EV_IDLE_ENABLE |
1714 | #if EV_IDLE_ENABLE |
1431 | array_free (idle, [i]); |
1715 | array_free (idle, [i]); |
1432 | #endif |
1716 | #endif |
1433 | } |
1717 | } |
1434 | |
1718 | |
1435 | ev_free (anfds); anfdmax = 0; |
1719 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1436 | |
1720 | |
1437 | /* 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); |
1438 | array_free (fdchange, EMPTY); |
1723 | array_free (fdchange, EMPTY); |
1439 | array_free (timer, EMPTY); |
1724 | array_free (timer, EMPTY); |
1440 | #if EV_PERIODIC_ENABLE |
1725 | #if EV_PERIODIC_ENABLE |
1441 | array_free (periodic, EMPTY); |
1726 | array_free (periodic, EMPTY); |
1442 | #endif |
1727 | #endif |
… | |
… | |
1451 | |
1736 | |
1452 | backend = 0; |
1737 | backend = 0; |
1453 | } |
1738 | } |
1454 | |
1739 | |
1455 | #if EV_USE_INOTIFY |
1740 | #if EV_USE_INOTIFY |
1456 | void inline_size infy_fork (EV_P); |
1741 | inline_size void infy_fork (EV_P); |
1457 | #endif |
1742 | #endif |
1458 | |
1743 | |
1459 | void inline_size |
1744 | inline_size void |
1460 | loop_fork (EV_P) |
1745 | loop_fork (EV_P) |
1461 | { |
1746 | { |
1462 | #if EV_USE_PORT |
1747 | #if EV_USE_PORT |
1463 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1748 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1464 | #endif |
1749 | #endif |
… | |
… | |
1470 | #endif |
1755 | #endif |
1471 | #if EV_USE_INOTIFY |
1756 | #if EV_USE_INOTIFY |
1472 | infy_fork (EV_A); |
1757 | infy_fork (EV_A); |
1473 | #endif |
1758 | #endif |
1474 | |
1759 | |
1475 | if (ev_is_active (&pipeev)) |
1760 | if (ev_is_active (&pipe_w)) |
1476 | { |
1761 | { |
1477 | /* this "locks" the handlers against writing to the pipe */ |
1762 | /* this "locks" the handlers against writing to the pipe */ |
1478 | /* while we modify the fd vars */ |
1763 | /* while we modify the fd vars */ |
1479 | gotsig = 1; |
1764 | sig_pending = 1; |
1480 | #if EV_ASYNC_ENABLE |
1765 | #if EV_ASYNC_ENABLE |
1481 | gotasync = 1; |
1766 | async_pending = 1; |
1482 | #endif |
1767 | #endif |
1483 | |
1768 | |
1484 | ev_ref (EV_A); |
1769 | ev_ref (EV_A); |
1485 | ev_io_stop (EV_A_ &pipeev); |
1770 | ev_io_stop (EV_A_ &pipe_w); |
1486 | |
1771 | |
1487 | #if EV_USE_EVENTFD |
1772 | #if EV_USE_EVENTFD |
1488 | if (evfd >= 0) |
1773 | if (evfd >= 0) |
1489 | close (evfd); |
1774 | close (evfd); |
1490 | #endif |
1775 | #endif |
1491 | |
1776 | |
1492 | if (evpipe [0] >= 0) |
1777 | if (evpipe [0] >= 0) |
1493 | { |
1778 | { |
1494 | close (evpipe [0]); |
1779 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1495 | close (evpipe [1]); |
1780 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1496 | } |
1781 | } |
1497 | |
1782 | |
1498 | evpipe_init (EV_A); |
1783 | evpipe_init (EV_A); |
1499 | /* now iterate over everything, in case we missed something */ |
1784 | /* now iterate over everything, in case we missed something */ |
1500 | pipecb (EV_A_ &pipeev, EV_READ); |
1785 | pipecb (EV_A_ &pipe_w, EV_READ); |
1501 | } |
1786 | } |
1502 | |
1787 | |
1503 | postfork = 0; |
1788 | postfork = 0; |
1504 | } |
1789 | } |
1505 | |
1790 | |
1506 | #if EV_MULTIPLICITY |
1791 | #if EV_MULTIPLICITY |
1507 | |
1792 | |
1508 | struct ev_loop * |
1793 | struct ev_loop * |
1509 | ev_loop_new (unsigned int flags) |
1794 | ev_loop_new (unsigned int flags) |
1510 | { |
1795 | { |
1511 | 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)); |
1512 | |
1797 | |
1513 | memset (loop, 0, sizeof (struct ev_loop)); |
1798 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1514 | |
|
|
1515 | loop_init (EV_A_ flags); |
1799 | loop_init (EV_A_ flags); |
1516 | |
1800 | |
1517 | if (ev_backend (EV_A)) |
1801 | if (ev_backend (EV_A)) |
1518 | return loop; |
1802 | return EV_A; |
1519 | |
1803 | |
1520 | return 0; |
1804 | return 0; |
1521 | } |
1805 | } |
1522 | |
1806 | |
1523 | void |
1807 | void |
… | |
… | |
1530 | void |
1814 | void |
1531 | ev_loop_fork (EV_P) |
1815 | ev_loop_fork (EV_P) |
1532 | { |
1816 | { |
1533 | postfork = 1; /* must be in line with ev_default_fork */ |
1817 | postfork = 1; /* must be in line with ev_default_fork */ |
1534 | } |
1818 | } |
|
|
1819 | #endif /* multiplicity */ |
1535 | |
1820 | |
1536 | #if EV_VERIFY |
1821 | #if EV_VERIFY |
1537 | static void noinline |
1822 | static void noinline |
1538 | verify_watcher (EV_P_ W w) |
1823 | verify_watcher (EV_P_ W w) |
1539 | { |
1824 | { |
… | |
… | |
1567 | verify_watcher (EV_A_ ws [cnt]); |
1852 | verify_watcher (EV_A_ ws [cnt]); |
1568 | } |
1853 | } |
1569 | } |
1854 | } |
1570 | #endif |
1855 | #endif |
1571 | |
1856 | |
|
|
1857 | #if EV_MINIMAL < 2 |
1572 | void |
1858 | void |
1573 | ev_loop_verify (EV_P) |
1859 | ev_loop_verify (EV_P) |
1574 | { |
1860 | { |
1575 | #if EV_VERIFY |
1861 | #if EV_VERIFY |
1576 | int i; |
1862 | int i; |
… | |
… | |
1625 | assert (checkmax >= checkcnt); |
1911 | assert (checkmax >= checkcnt); |
1626 | array_verify (EV_A_ (W *)checks, checkcnt); |
1912 | array_verify (EV_A_ (W *)checks, checkcnt); |
1627 | |
1913 | |
1628 | # if 0 |
1914 | # if 0 |
1629 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1915 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1630 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1916 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1631 | # endif |
|
|
1632 | #endif |
1917 | # endif |
|
|
1918 | #endif |
1633 | } |
1919 | } |
1634 | |
1920 | #endif |
1635 | #endif /* multiplicity */ |
|
|
1636 | |
1921 | |
1637 | #if EV_MULTIPLICITY |
1922 | #if EV_MULTIPLICITY |
1638 | struct ev_loop * |
1923 | struct ev_loop * |
1639 | ev_default_loop_init (unsigned int flags) |
1924 | ev_default_loop_init (unsigned int flags) |
1640 | #else |
1925 | #else |
… | |
… | |
1643 | #endif |
1928 | #endif |
1644 | { |
1929 | { |
1645 | if (!ev_default_loop_ptr) |
1930 | if (!ev_default_loop_ptr) |
1646 | { |
1931 | { |
1647 | #if EV_MULTIPLICITY |
1932 | #if EV_MULTIPLICITY |
1648 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1933 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1649 | #else |
1934 | #else |
1650 | ev_default_loop_ptr = 1; |
1935 | ev_default_loop_ptr = 1; |
1651 | #endif |
1936 | #endif |
1652 | |
1937 | |
1653 | loop_init (EV_A_ flags); |
1938 | loop_init (EV_A_ flags); |
… | |
… | |
1670 | |
1955 | |
1671 | void |
1956 | void |
1672 | ev_default_destroy (void) |
1957 | ev_default_destroy (void) |
1673 | { |
1958 | { |
1674 | #if EV_MULTIPLICITY |
1959 | #if EV_MULTIPLICITY |
1675 | struct ev_loop *loop = ev_default_loop_ptr; |
1960 | EV_P = ev_default_loop_ptr; |
1676 | #endif |
1961 | #endif |
1677 | |
1962 | |
1678 | ev_default_loop_ptr = 0; |
1963 | ev_default_loop_ptr = 0; |
1679 | |
1964 | |
1680 | #ifndef _WIN32 |
1965 | #ifndef _WIN32 |
… | |
… | |
1687 | |
1972 | |
1688 | void |
1973 | void |
1689 | ev_default_fork (void) |
1974 | ev_default_fork (void) |
1690 | { |
1975 | { |
1691 | #if EV_MULTIPLICITY |
1976 | #if EV_MULTIPLICITY |
1692 | struct ev_loop *loop = ev_default_loop_ptr; |
1977 | EV_P = ev_default_loop_ptr; |
1693 | #endif |
1978 | #endif |
1694 | |
1979 | |
1695 | postfork = 1; /* must be in line with ev_loop_fork */ |
1980 | postfork = 1; /* must be in line with ev_loop_fork */ |
1696 | } |
1981 | } |
1697 | |
1982 | |
… | |
… | |
1701 | ev_invoke (EV_P_ void *w, int revents) |
1986 | ev_invoke (EV_P_ void *w, int revents) |
1702 | { |
1987 | { |
1703 | EV_CB_INVOKE ((W)w, revents); |
1988 | EV_CB_INVOKE ((W)w, revents); |
1704 | } |
1989 | } |
1705 | |
1990 | |
1706 | void inline_speed |
1991 | unsigned int |
1707 | 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) |
1708 | { |
2005 | { |
1709 | int pri; |
2006 | int pri; |
1710 | |
2007 | |
1711 | for (pri = NUMPRI; pri--; ) |
2008 | for (pri = NUMPRI; pri--; ) |
1712 | while (pendingcnt [pri]) |
2009 | while (pendingcnt [pri]) |
1713 | { |
2010 | { |
1714 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2011 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1715 | |
2012 | |
1716 | if (expect_true (p->w)) |
|
|
1717 | { |
|
|
1718 | /*assert (("libev: 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 */ |
1719 | |
2015 | |
1720 | p->w->pending = 0; |
2016 | p->w->pending = 0; |
1721 | EV_CB_INVOKE (p->w, p->events); |
2017 | EV_CB_INVOKE (p->w, p->events); |
1722 | EV_FREQUENT_CHECK; |
2018 | EV_FREQUENT_CHECK; |
1723 | } |
|
|
1724 | } |
2019 | } |
1725 | } |
2020 | } |
1726 | |
2021 | |
1727 | #if EV_IDLE_ENABLE |
2022 | #if EV_IDLE_ENABLE |
1728 | 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 |
1729 | idle_reify (EV_P) |
2026 | idle_reify (EV_P) |
1730 | { |
2027 | { |
1731 | if (expect_false (idleall)) |
2028 | if (expect_false (idleall)) |
1732 | { |
2029 | { |
1733 | int pri; |
2030 | int pri; |
… | |
… | |
1745 | } |
2042 | } |
1746 | } |
2043 | } |
1747 | } |
2044 | } |
1748 | #endif |
2045 | #endif |
1749 | |
2046 | |
1750 | void inline_size |
2047 | /* make timers pending */ |
|
|
2048 | inline_size void |
1751 | timers_reify (EV_P) |
2049 | timers_reify (EV_P) |
1752 | { |
2050 | { |
1753 | EV_FREQUENT_CHECK; |
2051 | EV_FREQUENT_CHECK; |
1754 | |
2052 | |
1755 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
2053 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1756 | { |
2054 | { |
1757 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
2055 | do |
1758 | |
|
|
1759 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1760 | |
|
|
1761 | /* first reschedule or stop timer */ |
|
|
1762 | if (w->repeat) |
|
|
1763 | { |
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 | { |
1764 | ev_at (w) += w->repeat; |
2064 | ev_at (w) += w->repeat; |
1765 | if (ev_at (w) < mn_now) |
2065 | if (ev_at (w) < mn_now) |
1766 | ev_at (w) = mn_now; |
2066 | ev_at (w) = mn_now; |
1767 | |
2067 | |
1768 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2068 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1769 | |
2069 | |
1770 | ANHE_at_cache (timers [HEAP0]); |
2070 | ANHE_at_cache (timers [HEAP0]); |
1771 | downheap (timers, timercnt, 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); |
1772 | } |
2078 | } |
1773 | else |
2079 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1774 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1775 | |
2080 | |
1776 | EV_FREQUENT_CHECK; |
|
|
1777 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2081 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
1778 | } |
2082 | } |
1779 | } |
2083 | } |
1780 | |
2084 | |
1781 | #if EV_PERIODIC_ENABLE |
2085 | #if EV_PERIODIC_ENABLE |
1782 | void inline_size |
2086 | /* make periodics pending */ |
|
|
2087 | inline_size void |
1783 | periodics_reify (EV_P) |
2088 | periodics_reify (EV_P) |
1784 | { |
2089 | { |
1785 | EV_FREQUENT_CHECK; |
2090 | EV_FREQUENT_CHECK; |
1786 | |
2091 | |
1787 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2092 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1788 | { |
2093 | { |
1789 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2094 | int feed_count = 0; |
1790 | |
2095 | |
1791 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2096 | do |
1792 | |
|
|
1793 | /* first reschedule or stop timer */ |
|
|
1794 | if (w->reschedule_cb) |
|
|
1795 | { |
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 | { |
1796 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2105 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1797 | |
2106 | |
1798 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
2107 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
1799 | |
2108 | |
1800 | ANHE_at_cache (periodics [HEAP0]); |
2109 | ANHE_at_cache (periodics [HEAP0]); |
1801 | downheap (periodics, periodiccnt, 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); |
1802 | } |
2136 | } |
1803 | else if (w->interval) |
2137 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
1804 | { |
|
|
1805 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1806 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1807 | /* this might happen because of floating point inexactness */ |
|
|
1808 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1809 | { |
|
|
1810 | ev_at (w) += w->interval; |
|
|
1811 | |
2138 | |
1812 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1813 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1814 | /* has effectively asked to get triggered more often than possible */ |
|
|
1815 | if (ev_at (w) < ev_rt_now) |
|
|
1816 | ev_at (w) = ev_rt_now; |
|
|
1817 | } |
|
|
1818 | |
|
|
1819 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1820 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1821 | } |
|
|
1822 | else |
|
|
1823 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1824 | |
|
|
1825 | EV_FREQUENT_CHECK; |
|
|
1826 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2139 | feed_reverse_done (EV_A_ EV_PERIODIC); |
1827 | } |
2140 | } |
1828 | } |
2141 | } |
1829 | |
2142 | |
|
|
2143 | /* simply recalculate all periodics */ |
|
|
2144 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
1830 | static void noinline |
2145 | static void noinline |
1831 | periodics_reschedule (EV_P) |
2146 | periodics_reschedule (EV_P) |
1832 | { |
2147 | { |
1833 | int i; |
2148 | int i; |
1834 | |
2149 | |
… | |
… | |
1847 | |
2162 | |
1848 | reheap (periodics, periodiccnt); |
2163 | reheap (periodics, periodiccnt); |
1849 | } |
2164 | } |
1850 | #endif |
2165 | #endif |
1851 | |
2166 | |
1852 | void inline_speed |
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 |
1853 | time_update (EV_P_ ev_tstamp max_block) |
2184 | time_update (EV_P_ ev_tstamp max_block) |
1854 | { |
2185 | { |
1855 | int i; |
|
|
1856 | |
|
|
1857 | #if EV_USE_MONOTONIC |
2186 | #if EV_USE_MONOTONIC |
1858 | if (expect_true (have_monotonic)) |
2187 | if (expect_true (have_monotonic)) |
1859 | { |
2188 | { |
|
|
2189 | int i; |
1860 | ev_tstamp odiff = rtmn_diff; |
2190 | ev_tstamp odiff = rtmn_diff; |
1861 | |
2191 | |
1862 | mn_now = get_clock (); |
2192 | mn_now = get_clock (); |
1863 | |
2193 | |
1864 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2194 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1890 | ev_rt_now = ev_time (); |
2220 | ev_rt_now = ev_time (); |
1891 | mn_now = get_clock (); |
2221 | mn_now = get_clock (); |
1892 | now_floor = mn_now; |
2222 | now_floor = mn_now; |
1893 | } |
2223 | } |
1894 | |
2224 | |
|
|
2225 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2226 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1895 | # if EV_PERIODIC_ENABLE |
2227 | # if EV_PERIODIC_ENABLE |
1896 | periodics_reschedule (EV_A); |
2228 | periodics_reschedule (EV_A); |
1897 | # endif |
2229 | # endif |
1898 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1899 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1900 | } |
2230 | } |
1901 | else |
2231 | else |
1902 | #endif |
2232 | #endif |
1903 | { |
2233 | { |
1904 | ev_rt_now = ev_time (); |
2234 | ev_rt_now = ev_time (); |
1905 | |
2235 | |
1906 | 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)) |
1907 | { |
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); |
1908 | #if EV_PERIODIC_ENABLE |
2240 | #if EV_PERIODIC_ENABLE |
1909 | periodics_reschedule (EV_A); |
2241 | periodics_reschedule (EV_A); |
1910 | #endif |
2242 | #endif |
1911 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1912 | for (i = 0; i < timercnt; ++i) |
|
|
1913 | { |
|
|
1914 | ANHE *he = timers + i + HEAP0; |
|
|
1915 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1916 | ANHE_at_cache (*he); |
|
|
1917 | } |
|
|
1918 | } |
2243 | } |
1919 | |
2244 | |
1920 | mn_now = ev_rt_now; |
2245 | mn_now = ev_rt_now; |
1921 | } |
2246 | } |
1922 | } |
2247 | } |
1923 | |
2248 | |
1924 | void |
2249 | void |
1925 | ev_ref (EV_P) |
|
|
1926 | { |
|
|
1927 | ++activecnt; |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | void |
|
|
1931 | ev_unref (EV_P) |
|
|
1932 | { |
|
|
1933 | --activecnt; |
|
|
1934 | } |
|
|
1935 | |
|
|
1936 | void |
|
|
1937 | ev_now_update (EV_P) |
|
|
1938 | { |
|
|
1939 | time_update (EV_A_ 1e100); |
|
|
1940 | } |
|
|
1941 | |
|
|
1942 | static int loop_done; |
|
|
1943 | |
|
|
1944 | void |
|
|
1945 | ev_loop (EV_P_ int flags) |
2250 | ev_loop (EV_P_ int flags) |
1946 | { |
2251 | { |
|
|
2252 | #if EV_MINIMAL < 2 |
|
|
2253 | ++loop_depth; |
|
|
2254 | #endif |
|
|
2255 | |
|
|
2256 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2257 | |
1947 | loop_done = EVUNLOOP_CANCEL; |
2258 | loop_done = EVUNLOOP_CANCEL; |
1948 | |
2259 | |
1949 | 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 */ |
1950 | |
2261 | |
1951 | do |
2262 | do |
1952 | { |
2263 | { |
1953 | #if EV_VERIFY >= 2 |
2264 | #if EV_VERIFY >= 2 |
1954 | ev_loop_verify (EV_A); |
2265 | ev_loop_verify (EV_A); |
… | |
… | |
1967 | /* we might have forked, so queue fork handlers */ |
2278 | /* we might have forked, so queue fork handlers */ |
1968 | if (expect_false (postfork)) |
2279 | if (expect_false (postfork)) |
1969 | if (forkcnt) |
2280 | if (forkcnt) |
1970 | { |
2281 | { |
1971 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2282 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1972 | call_pending (EV_A); |
2283 | EV_INVOKE_PENDING; |
1973 | } |
2284 | } |
1974 | #endif |
2285 | #endif |
1975 | |
2286 | |
1976 | /* queue prepare watchers (and execute them) */ |
2287 | /* queue prepare watchers (and execute them) */ |
1977 | if (expect_false (preparecnt)) |
2288 | if (expect_false (preparecnt)) |
1978 | { |
2289 | { |
1979 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2290 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1980 | call_pending (EV_A); |
2291 | EV_INVOKE_PENDING; |
1981 | } |
2292 | } |
1982 | |
2293 | |
1983 | if (expect_false (!activecnt)) |
2294 | if (expect_false (loop_done)) |
1984 | break; |
2295 | break; |
1985 | |
2296 | |
1986 | /* we might have forked, so reify kernel state if necessary */ |
2297 | /* we might have forked, so reify kernel state if necessary */ |
1987 | if (expect_false (postfork)) |
2298 | if (expect_false (postfork)) |
1988 | loop_fork (EV_A); |
2299 | loop_fork (EV_A); |
… | |
… | |
1995 | ev_tstamp waittime = 0.; |
2306 | ev_tstamp waittime = 0.; |
1996 | ev_tstamp sleeptime = 0.; |
2307 | ev_tstamp sleeptime = 0.; |
1997 | |
2308 | |
1998 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2309 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1999 | { |
2310 | { |
|
|
2311 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2312 | ev_tstamp prev_mn_now = mn_now; |
|
|
2313 | |
2000 | /* update time to cancel out callback processing overhead */ |
2314 | /* update time to cancel out callback processing overhead */ |
2001 | time_update (EV_A_ 1e100); |
2315 | time_update (EV_A_ 1e100); |
2002 | |
2316 | |
2003 | waittime = MAX_BLOCKTIME; |
2317 | waittime = MAX_BLOCKTIME; |
2004 | |
2318 | |
… | |
… | |
2014 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2328 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2015 | if (waittime > to) waittime = to; |
2329 | if (waittime > to) waittime = to; |
2016 | } |
2330 | } |
2017 | #endif |
2331 | #endif |
2018 | |
2332 | |
|
|
2333 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2019 | if (expect_false (waittime < timeout_blocktime)) |
2334 | if (expect_false (waittime < timeout_blocktime)) |
2020 | waittime = timeout_blocktime; |
2335 | waittime = timeout_blocktime; |
2021 | |
2336 | |
2022 | sleeptime = waittime - backend_fudge; |
2337 | /* extra check because io_blocktime is commonly 0 */ |
2023 | |
|
|
2024 | if (expect_true (sleeptime > io_blocktime)) |
2338 | if (expect_false (io_blocktime)) |
2025 | sleeptime = io_blocktime; |
|
|
2026 | |
|
|
2027 | if (sleeptime) |
|
|
2028 | { |
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 | { |
2029 | ev_sleep (sleeptime); |
2347 | ev_sleep (sleeptime); |
2030 | waittime -= sleeptime; |
2348 | waittime -= sleeptime; |
|
|
2349 | } |
2031 | } |
2350 | } |
2032 | } |
2351 | } |
2033 | |
2352 | |
|
|
2353 | #if EV_MINIMAL < 2 |
2034 | ++loop_count; |
2354 | ++loop_count; |
|
|
2355 | #endif |
|
|
2356 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2035 | backend_poll (EV_A_ waittime); |
2357 | backend_poll (EV_A_ waittime); |
|
|
2358 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2036 | |
2359 | |
2037 | /* update ev_rt_now, do magic */ |
2360 | /* update ev_rt_now, do magic */ |
2038 | time_update (EV_A_ waittime + sleeptime); |
2361 | time_update (EV_A_ waittime + sleeptime); |
2039 | } |
2362 | } |
2040 | |
2363 | |
… | |
… | |
2051 | |
2374 | |
2052 | /* queue check watchers, to be executed first */ |
2375 | /* queue check watchers, to be executed first */ |
2053 | if (expect_false (checkcnt)) |
2376 | if (expect_false (checkcnt)) |
2054 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2377 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2055 | |
2378 | |
2056 | call_pending (EV_A); |
2379 | EV_INVOKE_PENDING; |
2057 | } |
2380 | } |
2058 | while (expect_true ( |
2381 | while (expect_true ( |
2059 | activecnt |
2382 | activecnt |
2060 | && !loop_done |
2383 | && !loop_done |
2061 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2384 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2062 | )); |
2385 | )); |
2063 | |
2386 | |
2064 | if (loop_done == EVUNLOOP_ONE) |
2387 | if (loop_done == EVUNLOOP_ONE) |
2065 | loop_done = EVUNLOOP_CANCEL; |
2388 | loop_done = EVUNLOOP_CANCEL; |
|
|
2389 | |
|
|
2390 | #if EV_MINIMAL < 2 |
|
|
2391 | --loop_depth; |
|
|
2392 | #endif |
2066 | } |
2393 | } |
2067 | |
2394 | |
2068 | void |
2395 | void |
2069 | ev_unloop (EV_P_ int how) |
2396 | ev_unloop (EV_P_ int how) |
2070 | { |
2397 | { |
2071 | loop_done = how; |
2398 | loop_done = how; |
2072 | } |
2399 | } |
2073 | |
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 | |
2074 | /*****************************************************************************/ |
2438 | /*****************************************************************************/ |
|
|
2439 | /* singly-linked list management, used when the expected list length is short */ |
2075 | |
2440 | |
2076 | void inline_size |
2441 | inline_size void |
2077 | wlist_add (WL *head, WL elem) |
2442 | wlist_add (WL *head, WL elem) |
2078 | { |
2443 | { |
2079 | elem->next = *head; |
2444 | elem->next = *head; |
2080 | *head = elem; |
2445 | *head = elem; |
2081 | } |
2446 | } |
2082 | |
2447 | |
2083 | void inline_size |
2448 | inline_size void |
2084 | wlist_del (WL *head, WL elem) |
2449 | wlist_del (WL *head, WL elem) |
2085 | { |
2450 | { |
2086 | while (*head) |
2451 | while (*head) |
2087 | { |
2452 | { |
2088 | if (*head == elem) |
2453 | if (expect_true (*head == elem)) |
2089 | { |
2454 | { |
2090 | *head = elem->next; |
2455 | *head = elem->next; |
2091 | return; |
2456 | break; |
2092 | } |
2457 | } |
2093 | |
2458 | |
2094 | head = &(*head)->next; |
2459 | head = &(*head)->next; |
2095 | } |
2460 | } |
2096 | } |
2461 | } |
2097 | |
2462 | |
2098 | void inline_speed |
2463 | /* internal, faster, version of ev_clear_pending */ |
|
|
2464 | inline_speed void |
2099 | clear_pending (EV_P_ W w) |
2465 | clear_pending (EV_P_ W w) |
2100 | { |
2466 | { |
2101 | if (w->pending) |
2467 | if (w->pending) |
2102 | { |
2468 | { |
2103 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2469 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
2104 | w->pending = 0; |
2470 | w->pending = 0; |
2105 | } |
2471 | } |
2106 | } |
2472 | } |
2107 | |
2473 | |
2108 | int |
2474 | int |
… | |
… | |
2112 | int pending = w_->pending; |
2478 | int pending = w_->pending; |
2113 | |
2479 | |
2114 | if (expect_true (pending)) |
2480 | if (expect_true (pending)) |
2115 | { |
2481 | { |
2116 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2482 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2483 | p->w = (W)&pending_w; |
2117 | w_->pending = 0; |
2484 | w_->pending = 0; |
2118 | p->w = 0; |
|
|
2119 | return p->events; |
2485 | return p->events; |
2120 | } |
2486 | } |
2121 | else |
2487 | else |
2122 | return 0; |
2488 | return 0; |
2123 | } |
2489 | } |
2124 | |
2490 | |
2125 | void inline_size |
2491 | inline_size void |
2126 | pri_adjust (EV_P_ W w) |
2492 | pri_adjust (EV_P_ W w) |
2127 | { |
2493 | { |
2128 | int pri = w->priority; |
2494 | int pri = ev_priority (w); |
2129 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2495 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2130 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2496 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2131 | w->priority = pri; |
2497 | ev_set_priority (w, pri); |
2132 | } |
2498 | } |
2133 | |
2499 | |
2134 | void inline_speed |
2500 | inline_speed void |
2135 | ev_start (EV_P_ W w, int active) |
2501 | ev_start (EV_P_ W w, int active) |
2136 | { |
2502 | { |
2137 | pri_adjust (EV_A_ w); |
2503 | pri_adjust (EV_A_ w); |
2138 | w->active = active; |
2504 | w->active = active; |
2139 | ev_ref (EV_A); |
2505 | ev_ref (EV_A); |
2140 | } |
2506 | } |
2141 | |
2507 | |
2142 | void inline_size |
2508 | inline_size void |
2143 | ev_stop (EV_P_ W w) |
2509 | ev_stop (EV_P_ W w) |
2144 | { |
2510 | { |
2145 | ev_unref (EV_A); |
2511 | ev_unref (EV_A); |
2146 | w->active = 0; |
2512 | w->active = 0; |
2147 | } |
2513 | } |
… | |
… | |
2155 | |
2521 | |
2156 | if (expect_false (ev_is_active (w))) |
2522 | if (expect_false (ev_is_active (w))) |
2157 | return; |
2523 | return; |
2158 | |
2524 | |
2159 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2525 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2160 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
2526 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2161 | |
2527 | |
2162 | EV_FREQUENT_CHECK; |
2528 | EV_FREQUENT_CHECK; |
2163 | |
2529 | |
2164 | ev_start (EV_A_ (W)w, 1); |
2530 | ev_start (EV_A_ (W)w, 1); |
2165 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2531 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2166 | wlist_add (&anfds[fd].head, (WL)w); |
2532 | wlist_add (&anfds[fd].head, (WL)w); |
2167 | |
2533 | |
2168 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2534 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2169 | w->events &= ~EV_IOFDSET; |
2535 | w->events &= ~EV__IOFDSET; |
2170 | |
2536 | |
2171 | EV_FREQUENT_CHECK; |
2537 | EV_FREQUENT_CHECK; |
2172 | } |
2538 | } |
2173 | |
2539 | |
2174 | void noinline |
2540 | void noinline |
… | |
… | |
2235 | timers [active] = timers [timercnt + HEAP0]; |
2601 | timers [active] = timers [timercnt + HEAP0]; |
2236 | adjustheap (timers, timercnt, active); |
2602 | adjustheap (timers, timercnt, active); |
2237 | } |
2603 | } |
2238 | } |
2604 | } |
2239 | |
2605 | |
2240 | EV_FREQUENT_CHECK; |
|
|
2241 | |
|
|
2242 | ev_at (w) -= mn_now; |
2606 | ev_at (w) -= mn_now; |
2243 | |
2607 | |
2244 | ev_stop (EV_A_ (W)w); |
2608 | ev_stop (EV_A_ (W)w); |
|
|
2609 | |
|
|
2610 | EV_FREQUENT_CHECK; |
2245 | } |
2611 | } |
2246 | |
2612 | |
2247 | void noinline |
2613 | void noinline |
2248 | ev_timer_again (EV_P_ ev_timer *w) |
2614 | ev_timer_again (EV_P_ ev_timer *w) |
2249 | { |
2615 | { |
… | |
… | |
2267 | } |
2633 | } |
2268 | |
2634 | |
2269 | EV_FREQUENT_CHECK; |
2635 | EV_FREQUENT_CHECK; |
2270 | } |
2636 | } |
2271 | |
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.); |
|
|
2642 | } |
|
|
2643 | |
2272 | #if EV_PERIODIC_ENABLE |
2644 | #if EV_PERIODIC_ENABLE |
2273 | void noinline |
2645 | void noinline |
2274 | ev_periodic_start (EV_P_ ev_periodic *w) |
2646 | ev_periodic_start (EV_P_ ev_periodic *w) |
2275 | { |
2647 | { |
2276 | if (expect_false (ev_is_active (w))) |
2648 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2322 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2694 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2323 | adjustheap (periodics, periodiccnt, active); |
2695 | adjustheap (periodics, periodiccnt, active); |
2324 | } |
2696 | } |
2325 | } |
2697 | } |
2326 | |
2698 | |
2327 | EV_FREQUENT_CHECK; |
|
|
2328 | |
|
|
2329 | ev_stop (EV_A_ (W)w); |
2699 | ev_stop (EV_A_ (W)w); |
|
|
2700 | |
|
|
2701 | EV_FREQUENT_CHECK; |
2330 | } |
2702 | } |
2331 | |
2703 | |
2332 | void noinline |
2704 | void noinline |
2333 | ev_periodic_again (EV_P_ ev_periodic *w) |
2705 | ev_periodic_again (EV_P_ ev_periodic *w) |
2334 | { |
2706 | { |
… | |
… | |
2343 | #endif |
2715 | #endif |
2344 | |
2716 | |
2345 | void noinline |
2717 | void noinline |
2346 | ev_signal_start (EV_P_ ev_signal *w) |
2718 | ev_signal_start (EV_P_ ev_signal *w) |
2347 | { |
2719 | { |
2348 | #if EV_MULTIPLICITY |
|
|
2349 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2350 | #endif |
|
|
2351 | if (expect_false (ev_is_active (w))) |
2720 | if (expect_false (ev_is_active (w))) |
2352 | return; |
2721 | return; |
2353 | |
2722 | |
2354 | assert (("libev: 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)); |
2355 | |
2724 | |
2356 | evpipe_init (EV_A); |
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)); |
2357 | |
2728 | |
2358 | EV_FREQUENT_CHECK; |
2729 | signals [w->signum - 1].loop = EV_A; |
|
|
2730 | #endif |
2359 | |
2731 | |
|
|
2732 | EV_FREQUENT_CHECK; |
|
|
2733 | |
|
|
2734 | #if EV_USE_SIGNALFD |
|
|
2735 | if (sigfd == -2) |
2360 | { |
2736 | { |
2361 | #ifndef _WIN32 |
2737 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2362 | sigset_t full, prev; |
2738 | if (sigfd < 0 && errno == EINVAL) |
2363 | sigfillset (&full); |
2739 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2364 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2365 | #endif |
|
|
2366 | |
2740 | |
2367 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2741 | if (sigfd >= 0) |
|
|
2742 | { |
|
|
2743 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2368 | |
2744 | |
2369 | #ifndef _WIN32 |
2745 | sigemptyset (&sigfd_set); |
2370 | sigprocmask (SIG_SETMASK, &prev, 0); |
2746 | |
2371 | #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 | } |
2372 | } |
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 |
2373 | |
2763 | |
2374 | ev_start (EV_A_ (W)w, 1); |
2764 | ev_start (EV_A_ (W)w, 1); |
2375 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2765 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2376 | |
2766 | |
2377 | if (!((WL)w)->next) |
2767 | if (!((WL)w)->next) |
|
|
2768 | # if EV_USE_SIGNALFD |
|
|
2769 | if (sigfd < 0) /*TODO*/ |
|
|
2770 | # endif |
2378 | { |
2771 | { |
2379 | #if _WIN32 |
2772 | # ifdef _WIN32 |
|
|
2773 | evpipe_init (EV_A); |
|
|
2774 | |
2380 | signal (w->signum, ev_sighandler); |
2775 | signal (w->signum, ev_sighandler); |
2381 | #else |
2776 | # else |
2382 | struct sigaction sa; |
2777 | struct sigaction sa; |
|
|
2778 | |
|
|
2779 | evpipe_init (EV_A); |
|
|
2780 | |
2383 | sa.sa_handler = ev_sighandler; |
2781 | sa.sa_handler = ev_sighandler; |
2384 | sigfillset (&sa.sa_mask); |
2782 | sigfillset (&sa.sa_mask); |
2385 | 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 */ |
2386 | 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); |
2387 | #endif |
2789 | #endif |
2388 | } |
2790 | } |
2389 | |
2791 | |
2390 | EV_FREQUENT_CHECK; |
2792 | EV_FREQUENT_CHECK; |
2391 | } |
2793 | } |
2392 | |
2794 | |
2393 | void noinline |
2795 | void noinline |
… | |
… | |
2401 | |
2803 | |
2402 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2804 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2403 | ev_stop (EV_A_ (W)w); |
2805 | ev_stop (EV_A_ (W)w); |
2404 | |
2806 | |
2405 | 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 |
2406 | signal (w->signum, SIG_DFL); |
2826 | signal (w->signum, SIG_DFL); |
|
|
2827 | } |
2407 | |
2828 | |
2408 | EV_FREQUENT_CHECK; |
2829 | EV_FREQUENT_CHECK; |
2409 | } |
2830 | } |
2410 | |
2831 | |
2411 | void |
2832 | void |
… | |
… | |
2452 | #define MIN_STAT_INTERVAL 0.1074891 |
2873 | #define MIN_STAT_INTERVAL 0.1074891 |
2453 | |
2874 | |
2454 | 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); |
2455 | |
2876 | |
2456 | #if EV_USE_INOTIFY |
2877 | #if EV_USE_INOTIFY |
2457 | # 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) |
2458 | |
2881 | |
2459 | static void noinline |
2882 | static void noinline |
2460 | infy_add (EV_P_ ev_stat *w) |
2883 | infy_add (EV_P_ ev_stat *w) |
2461 | { |
2884 | { |
2462 | 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); |
2463 | |
2886 | |
2464 | 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 */ |
2465 | { |
2907 | } |
|
|
2908 | else |
|
|
2909 | { |
|
|
2910 | /* can't use inotify, continue to stat */ |
2466 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2911 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2467 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2468 | |
2912 | |
2469 | /* monitor some parent directory for speedup hints */ |
2913 | /* if path is not there, monitor some parent directory for speedup hints */ |
2470 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2914 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2471 | /* but an efficiency issue only */ |
2915 | /* but an efficiency issue only */ |
2472 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2916 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2473 | { |
2917 | { |
2474 | char path [4096]; |
2918 | char path [4096]; |
… | |
… | |
2490 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2934 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2491 | } |
2935 | } |
2492 | } |
2936 | } |
2493 | |
2937 | |
2494 | if (w->wd >= 0) |
2938 | if (w->wd >= 0) |
2495 | { |
|
|
2496 | 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); |
2497 | |
2940 | |
2498 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2941 | /* now re-arm timer, if required */ |
2499 | /* unless the filesystem it known to be local, we therefore still poll */ |
2942 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2500 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2501 | struct statfs sfs; |
|
|
2502 | |
|
|
2503 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2504 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2505 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2506 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2507 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2508 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2509 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2510 | return; |
|
|
2511 | |
|
|
2512 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2513 | ev_timer_again (EV_A_ &w->timer); |
2943 | ev_timer_again (EV_A_ &w->timer); |
2514 | } |
2944 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2515 | } |
2945 | } |
2516 | |
2946 | |
2517 | static void noinline |
2947 | static void noinline |
2518 | infy_del (EV_P_ ev_stat *w) |
2948 | infy_del (EV_P_ ev_stat *w) |
2519 | { |
2949 | { |
… | |
… | |
2564 | |
2994 | |
2565 | static void |
2995 | static void |
2566 | infy_cb (EV_P_ ev_io *w, int revents) |
2996 | infy_cb (EV_P_ ev_io *w, int revents) |
2567 | { |
2997 | { |
2568 | char buf [EV_INOTIFY_BUFSIZE]; |
2998 | char buf [EV_INOTIFY_BUFSIZE]; |
2569 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2570 | int ofs; |
2999 | int ofs; |
2571 | int len = read (fs_fd, buf, sizeof (buf)); |
3000 | int len = read (fs_fd, buf, sizeof (buf)); |
2572 | |
3001 | |
2573 | 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); |
2574 | 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 | } |
2575 | } |
3008 | } |
2576 | |
3009 | |
2577 | 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 |
2578 | check_2625 (EV_P) |
3043 | ev_check_2625 (EV_P) |
2579 | { |
3044 | { |
2580 | /* kernels < 2.6.25 are borked |
3045 | /* kernels < 2.6.25 are borked |
2581 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3046 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2582 | */ |
3047 | */ |
2583 | struct utsname buf; |
3048 | if (ev_linux_version () < 0x020619) |
2584 | int major, minor, micro; |
|
|
2585 | |
|
|
2586 | if (uname (&buf)) |
|
|
2587 | return; |
3049 | return; |
2588 | |
3050 | |
2589 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2590 | return; |
|
|
2591 | |
|
|
2592 | if (major < 2 |
|
|
2593 | || (major == 2 && minor < 6) |
|
|
2594 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2595 | return; |
|
|
2596 | |
|
|
2597 | fs_2625 = 1; |
3051 | fs_2625 = 1; |
2598 | } |
3052 | } |
2599 | |
3053 | |
2600 | void inline_size |
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 |
2601 | infy_init (EV_P) |
3066 | infy_init (EV_P) |
2602 | { |
3067 | { |
2603 | if (fs_fd != -2) |
3068 | if (fs_fd != -2) |
2604 | return; |
3069 | return; |
2605 | |
3070 | |
2606 | fs_fd = -1; |
3071 | fs_fd = -1; |
2607 | |
3072 | |
2608 | check_2625 (EV_A); |
3073 | ev_check_2625 (EV_A); |
2609 | |
3074 | |
2610 | fs_fd = inotify_init (); |
3075 | fs_fd = infy_newfd (); |
2611 | |
3076 | |
2612 | if (fs_fd >= 0) |
3077 | if (fs_fd >= 0) |
2613 | { |
3078 | { |
|
|
3079 | fd_intern (fs_fd); |
2614 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3080 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2615 | ev_set_priority (&fs_w, EV_MAXPRI); |
3081 | ev_set_priority (&fs_w, EV_MAXPRI); |
2616 | ev_io_start (EV_A_ &fs_w); |
3082 | ev_io_start (EV_A_ &fs_w); |
|
|
3083 | ev_unref (EV_A); |
2617 | } |
3084 | } |
2618 | } |
3085 | } |
2619 | |
3086 | |
2620 | void inline_size |
3087 | inline_size void |
2621 | infy_fork (EV_P) |
3088 | infy_fork (EV_P) |
2622 | { |
3089 | { |
2623 | int slot; |
3090 | int slot; |
2624 | |
3091 | |
2625 | if (fs_fd < 0) |
3092 | if (fs_fd < 0) |
2626 | return; |
3093 | return; |
2627 | |
3094 | |
|
|
3095 | ev_ref (EV_A); |
|
|
3096 | ev_io_stop (EV_A_ &fs_w); |
2628 | close (fs_fd); |
3097 | close (fs_fd); |
2629 | 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 | } |
2630 | |
3107 | |
2631 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3108 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2632 | { |
3109 | { |
2633 | WL w_ = fs_hash [slot].head; |
3110 | WL w_ = fs_hash [slot].head; |
2634 | fs_hash [slot].head = 0; |
3111 | fs_hash [slot].head = 0; |
… | |
… | |
2641 | w->wd = -1; |
3118 | w->wd = -1; |
2642 | |
3119 | |
2643 | if (fs_fd >= 0) |
3120 | if (fs_fd >= 0) |
2644 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3121 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2645 | 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); |
2646 | ev_timer_again (EV_A_ &w->timer); |
3126 | ev_timer_again (EV_A_ &w->timer); |
|
|
3127 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3128 | } |
2647 | } |
3129 | } |
2648 | } |
3130 | } |
2649 | } |
3131 | } |
2650 | |
3132 | |
2651 | #endif |
3133 | #endif |
… | |
… | |
2668 | static void noinline |
3150 | static void noinline |
2669 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3151 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2670 | { |
3152 | { |
2671 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3153 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2672 | |
3154 | |
2673 | /* we copy this here each the time so that */ |
3155 | ev_statdata prev = w->attr; |
2674 | /* prev has the old value when the callback gets invoked */ |
|
|
2675 | w->prev = w->attr; |
|
|
2676 | ev_stat_stat (EV_A_ w); |
3156 | ev_stat_stat (EV_A_ w); |
2677 | |
3157 | |
2678 | /* 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 */ |
2679 | if ( |
3159 | if ( |
2680 | w->prev.st_dev != w->attr.st_dev |
3160 | prev.st_dev != w->attr.st_dev |
2681 | || w->prev.st_ino != w->attr.st_ino |
3161 | || prev.st_ino != w->attr.st_ino |
2682 | || w->prev.st_mode != w->attr.st_mode |
3162 | || prev.st_mode != w->attr.st_mode |
2683 | || w->prev.st_nlink != w->attr.st_nlink |
3163 | || prev.st_nlink != w->attr.st_nlink |
2684 | || w->prev.st_uid != w->attr.st_uid |
3164 | || prev.st_uid != w->attr.st_uid |
2685 | || w->prev.st_gid != w->attr.st_gid |
3165 | || prev.st_gid != w->attr.st_gid |
2686 | || w->prev.st_rdev != w->attr.st_rdev |
3166 | || prev.st_rdev != w->attr.st_rdev |
2687 | || w->prev.st_size != w->attr.st_size |
3167 | || prev.st_size != w->attr.st_size |
2688 | || w->prev.st_atime != w->attr.st_atime |
3168 | || prev.st_atime != w->attr.st_atime |
2689 | || w->prev.st_mtime != w->attr.st_mtime |
3169 | || prev.st_mtime != w->attr.st_mtime |
2690 | || w->prev.st_ctime != w->attr.st_ctime |
3170 | || prev.st_ctime != w->attr.st_ctime |
2691 | ) { |
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 | |
2692 | #if EV_USE_INOTIFY |
3177 | #if EV_USE_INOTIFY |
2693 | if (fs_fd >= 0) |
3178 | if (fs_fd >= 0) |
2694 | { |
3179 | { |
2695 | infy_del (EV_A_ w); |
3180 | infy_del (EV_A_ w); |
2696 | infy_add (EV_A_ w); |
3181 | infy_add (EV_A_ w); |
… | |
… | |
2721 | |
3206 | |
2722 | if (fs_fd >= 0) |
3207 | if (fs_fd >= 0) |
2723 | infy_add (EV_A_ w); |
3208 | infy_add (EV_A_ w); |
2724 | else |
3209 | else |
2725 | #endif |
3210 | #endif |
|
|
3211 | { |
2726 | ev_timer_again (EV_A_ &w->timer); |
3212 | ev_timer_again (EV_A_ &w->timer); |
|
|
3213 | ev_unref (EV_A); |
|
|
3214 | } |
2727 | |
3215 | |
2728 | ev_start (EV_A_ (W)w, 1); |
3216 | ev_start (EV_A_ (W)w, 1); |
2729 | |
3217 | |
2730 | EV_FREQUENT_CHECK; |
3218 | EV_FREQUENT_CHECK; |
2731 | } |
3219 | } |
… | |
… | |
2740 | EV_FREQUENT_CHECK; |
3228 | EV_FREQUENT_CHECK; |
2741 | |
3229 | |
2742 | #if EV_USE_INOTIFY |
3230 | #if EV_USE_INOTIFY |
2743 | infy_del (EV_A_ w); |
3231 | infy_del (EV_A_ w); |
2744 | #endif |
3232 | #endif |
|
|
3233 | |
|
|
3234 | if (ev_is_active (&w->timer)) |
|
|
3235 | { |
|
|
3236 | ev_ref (EV_A); |
2745 | ev_timer_stop (EV_A_ &w->timer); |
3237 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3238 | } |
2746 | |
3239 | |
2747 | ev_stop (EV_A_ (W)w); |
3240 | ev_stop (EV_A_ (W)w); |
2748 | |
3241 | |
2749 | EV_FREQUENT_CHECK; |
3242 | EV_FREQUENT_CHECK; |
2750 | } |
3243 | } |
… | |
… | |
2891 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3384 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2892 | { |
3385 | { |
2893 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3386 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2894 | |
3387 | |
2895 | { |
3388 | { |
2896 | struct ev_loop *loop = w->other; |
3389 | EV_P = w->other; |
2897 | |
3390 | |
2898 | while (fdchangecnt) |
3391 | while (fdchangecnt) |
2899 | { |
3392 | { |
2900 | fd_reify (EV_A); |
3393 | fd_reify (EV_A); |
2901 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3394 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
2909 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3402 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
2910 | |
3403 | |
2911 | ev_embed_stop (EV_A_ w); |
3404 | ev_embed_stop (EV_A_ w); |
2912 | |
3405 | |
2913 | { |
3406 | { |
2914 | struct ev_loop *loop = w->other; |
3407 | EV_P = w->other; |
2915 | |
3408 | |
2916 | ev_loop_fork (EV_A); |
3409 | ev_loop_fork (EV_A); |
2917 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3410 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
2918 | } |
3411 | } |
2919 | |
3412 | |
… | |
… | |
2933 | { |
3426 | { |
2934 | if (expect_false (ev_is_active (w))) |
3427 | if (expect_false (ev_is_active (w))) |
2935 | return; |
3428 | return; |
2936 | |
3429 | |
2937 | { |
3430 | { |
2938 | struct ev_loop *loop = w->other; |
3431 | EV_P = w->other; |
2939 | assert (("libev: 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 ())); |
2940 | 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); |
2941 | } |
3434 | } |
2942 | |
3435 | |
2943 | EV_FREQUENT_CHECK; |
3436 | EV_FREQUENT_CHECK; |
… | |
… | |
2970 | |
3463 | |
2971 | ev_io_stop (EV_A_ &w->io); |
3464 | ev_io_stop (EV_A_ &w->io); |
2972 | ev_prepare_stop (EV_A_ &w->prepare); |
3465 | ev_prepare_stop (EV_A_ &w->prepare); |
2973 | ev_fork_stop (EV_A_ &w->fork); |
3466 | ev_fork_stop (EV_A_ &w->fork); |
2974 | |
3467 | |
|
|
3468 | ev_stop (EV_A_ (W)w); |
|
|
3469 | |
2975 | EV_FREQUENT_CHECK; |
3470 | EV_FREQUENT_CHECK; |
2976 | } |
3471 | } |
2977 | #endif |
3472 | #endif |
2978 | |
3473 | |
2979 | #if EV_FORK_ENABLE |
3474 | #if EV_FORK_ENABLE |
… | |
… | |
3055 | |
3550 | |
3056 | void |
3551 | void |
3057 | ev_async_send (EV_P_ ev_async *w) |
3552 | ev_async_send (EV_P_ ev_async *w) |
3058 | { |
3553 | { |
3059 | w->sent = 1; |
3554 | w->sent = 1; |
3060 | evpipe_write (EV_A_ &gotasync); |
3555 | evpipe_write (EV_A_ &async_pending); |
3061 | } |
3556 | } |
3062 | #endif |
3557 | #endif |
3063 | |
3558 | |
3064 | /*****************************************************************************/ |
3559 | /*****************************************************************************/ |
3065 | |
3560 | |
… | |
… | |
3127 | ev_timer_set (&once->to, timeout, 0.); |
3622 | ev_timer_set (&once->to, timeout, 0.); |
3128 | ev_timer_start (EV_A_ &once->to); |
3623 | ev_timer_start (EV_A_ &once->to); |
3129 | } |
3624 | } |
3130 | } |
3625 | } |
3131 | |
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 | |
3132 | #if EV_MULTIPLICITY |
3735 | #if EV_MULTIPLICITY |
3133 | #include "ev_wrap.h" |
3736 | #include "ev_wrap.h" |
3134 | #endif |
3737 | #endif |
3135 | |
3738 | |
3136 | #ifdef __cplusplus |
3739 | #ifdef __cplusplus |