… | |
… | |
88 | #endif |
88 | #endif |
89 | |
89 | |
90 | /*****************************************************************************/ |
90 | /*****************************************************************************/ |
91 | |
91 | |
92 | #if EV_STAT_ENABLE |
92 | #if EV_STAT_ENABLE |
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93 | # ifdef _WIN32 |
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94 | # include <time.h> |
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95 | # include <sys/types.h> |
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96 | # endif |
93 | # include <sys/stat.h> |
97 | # include <sys/stat.h> |
94 | #endif |
98 | #endif |
95 | |
99 | |
96 | /* support multiple event loops? */ |
100 | /* support multiple event loops? */ |
97 | #if EV_MULTIPLICITY |
101 | #if EV_MULTIPLICITY |
98 | struct ev_loop; |
102 | struct ev_loop; |
99 | # define EV_P struct ev_loop *loop |
103 | # define EV_P struct ev_loop *loop |
100 | # define EV_P_ EV_P, |
104 | # define EV_P_ EV_P, |
101 | # define EV_A loop |
105 | # define EV_A loop |
102 | # define EV_A_ EV_A, |
106 | # define EV_A_ EV_A, |
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107 | # define EV_DEFAULT_UC ev_default_loop_uc () |
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108 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
103 | # define EV_DEFAULT ev_default_loop (0) |
109 | # define EV_DEFAULT ev_default_loop (0) |
104 | # define EV_DEFAULT_ EV_DEFAULT, |
110 | # define EV_DEFAULT_ EV_DEFAULT, |
105 | #else |
111 | #else |
106 | # define EV_P void |
112 | # define EV_P void |
107 | # define EV_P_ |
113 | # define EV_P_ |
108 | # define EV_A |
114 | # define EV_A |
109 | # define EV_A_ |
115 | # define EV_A_ |
110 | # define EV_DEFAULT |
116 | # define EV_DEFAULT |
111 | # define EV_DEFAULT_ |
117 | # define EV_DEFAULT_ |
112 | |
118 | # define EV_DEFAULT_UC |
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119 | # define EV_DEFAULT_UC_ |
113 | # undef EV_EMBED_ENABLE |
120 | # undef EV_EMBED_ENABLE |
114 | #endif |
121 | #endif |
115 | |
122 | |
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123 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
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124 | # define EV_INLINE static inline |
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125 | #else |
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126 | # define EV_INLINE static |
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127 | #endif |
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128 | |
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129 | /*****************************************************************************/ |
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130 | |
116 | /* eventmask, revents, events... */ |
131 | /* eventmask, revents, events... */ |
117 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
132 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
118 | #define EV_NONE 0x00L /* no events */ |
133 | #define EV_NONE 0x00 /* no events */ |
119 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
134 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
120 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
135 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
121 | #define EV_IOFDSET 0x80L /* internal use only */ |
136 | #define EV_IOFDSET 0x80 /* internal use only */ |
122 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
137 | #define EV_TIMEOUT 0x00000100 /* timer timed out */ |
123 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
138 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
124 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
139 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
125 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
140 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
126 | #define EV_STAT 0x00001000L /* stat data changed */ |
141 | #define EV_STAT 0x00001000 /* stat data changed */ |
127 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
142 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
128 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
143 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
129 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
144 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
130 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
145 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
131 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
146 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
132 | #define EV_ASYNC 0x00040000L /* async intra-loop signal */ |
147 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
133 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
148 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
134 | |
149 | |
135 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
150 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
136 | #ifndef EV_COMMON |
151 | #ifndef EV_COMMON |
137 | # define EV_COMMON void *data; |
152 | # define EV_COMMON void *data; |
138 | #endif |
153 | #endif |
… | |
… | |
153 | /* |
168 | /* |
154 | * struct member types: |
169 | * struct member types: |
155 | * private: you can look at them, but not change them, and they might not mean anything to you. |
170 | * private: you can look at them, but not change them, and they might not mean anything to you. |
156 | * ro: can be read anytime, but only changed when the watcher isn't active |
171 | * ro: can be read anytime, but only changed when the watcher isn't active |
157 | * rw: can be read and modified anytime, even when the watcher is active |
172 | * rw: can be read and modified anytime, even when the watcher is active |
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173 | * |
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174 | * some internal details that might be helpful for debugging: |
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175 | * |
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176 | * active is either 0, which means the watcher is not active, |
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177 | * or the array index of the watcher (periodics, timers) |
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178 | * or the array index + 1 (most other watchers) |
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179 | * or simply 1 for watchers that aren't in some array. |
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180 | * pending is either 0, in which case the watcher isn't, |
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181 | * or the array index + 1 in the pendings array. |
158 | */ |
182 | */ |
159 | |
183 | |
160 | /* shared by all watchers */ |
184 | /* shared by all watchers */ |
161 | #define EV_WATCHER(type) \ |
185 | #define EV_WATCHER(type) \ |
162 | int active; /* private */ \ |
186 | int active; /* private */ \ |
… | |
… | |
311 | ev_prepare prepare; /* private */ |
335 | ev_prepare prepare; /* private */ |
312 | ev_check check; /* unused */ |
336 | ev_check check; /* unused */ |
313 | ev_timer timer; /* unused */ |
337 | ev_timer timer; /* unused */ |
314 | ev_periodic periodic; /* unused */ |
338 | ev_periodic periodic; /* unused */ |
315 | ev_idle idle; /* unused */ |
339 | ev_idle idle; /* unused */ |
316 | ev_fork fork; /* unused */ |
340 | ev_fork fork; /* private */ |
317 | } ev_embed; |
341 | } ev_embed; |
318 | #endif |
342 | #endif |
319 | |
343 | |
320 | #if EV_ASYNC_ENABLE |
344 | #if EV_ASYNC_ENABLE |
321 | /* invoked when somebody calls ev_async_send on the watcher */ |
345 | /* invoked when somebody calls ev_async_send on the watcher */ |
… | |
… | |
324 | { |
348 | { |
325 | EV_WATCHER (ev_async) |
349 | EV_WATCHER (ev_async) |
326 | |
350 | |
327 | EV_ATOMIC_T sent; /* private */ |
351 | EV_ATOMIC_T sent; /* private */ |
328 | } ev_async; |
352 | } ev_async; |
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353 | |
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354 | # define ev_async_pending(w) ((w)->sent + 0) |
329 | #endif |
355 | #endif |
330 | |
356 | |
331 | /* the presence of this union forces similar struct layout */ |
357 | /* the presence of this union forces similar struct layout */ |
332 | union ev_any_watcher |
358 | union ev_any_watcher |
333 | { |
359 | { |
… | |
… | |
351 | struct ev_fork fork; |
377 | struct ev_fork fork; |
352 | #endif |
378 | #endif |
353 | #if EV_EMBED_ENABLE |
379 | #if EV_EMBED_ENABLE |
354 | struct ev_embed embed; |
380 | struct ev_embed embed; |
355 | #endif |
381 | #endif |
356 | #if EV_ASYND_ENABLE |
382 | #if EV_ASYNC_ENABLE |
357 | struct ev_async async; |
383 | struct ev_async async; |
358 | #endif |
384 | #endif |
359 | }; |
385 | }; |
360 | |
386 | |
361 | /* bits for ev_default_loop and ev_loop_new */ |
387 | /* bits for ev_default_loop and ev_loop_new */ |
362 | /* the default */ |
388 | /* the default */ |
363 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
389 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
364 | /* flag bits */ |
390 | /* flag bits */ |
365 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
391 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
366 | #define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
392 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
367 | /* method bits to be ored together */ |
393 | /* method bits to be ored together */ |
368 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
394 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
369 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
395 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
370 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
396 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
371 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
397 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
372 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
398 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
373 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
399 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
374 | |
400 | |
375 | #if EV_PROTOTYPES |
401 | #if EV_PROTOTYPES |
376 | int ev_version_major (void); |
402 | int ev_version_major (void); |
377 | int ev_version_minor (void); |
403 | int ev_version_minor (void); |
378 | |
404 | |
… | |
… | |
395 | * retryable syscall error |
421 | * retryable syscall error |
396 | * (such as failed select, poll, epoll_wait) |
422 | * (such as failed select, poll, epoll_wait) |
397 | */ |
423 | */ |
398 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
424 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
399 | |
425 | |
400 | # if EV_MULTIPLICITY |
426 | #if EV_MULTIPLICITY |
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427 | EV_INLINE struct ev_loop * |
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428 | ev_default_loop_uc (void) |
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429 | { |
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430 | extern struct ev_loop *ev_default_loop_ptr; |
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431 | |
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432 | return ev_default_loop_ptr; |
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433 | } |
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434 | |
401 | /* the default loop is the only one that handles signals and child watchers */ |
435 | /* the default loop is the only one that handles signals and child watchers */ |
402 | /* you can call this as often as you like */ |
436 | /* you can call this as often as you like */ |
403 | static struct ev_loop * |
437 | EV_INLINE struct ev_loop * |
404 | ev_default_loop (unsigned int flags) |
438 | ev_default_loop (unsigned int flags) |
405 | { |
439 | { |
406 | extern struct ev_loop *ev_default_loop_ptr; |
440 | struct ev_loop *loop = ev_default_loop_uc (); |
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441 | |
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442 | if (!loop) |
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443 | { |
407 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
444 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
408 | |
445 | |
409 | if (!ev_default_loop_ptr) |
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410 | ev_default_loop_init (flags); |
446 | loop = ev_default_loop_init (flags); |
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447 | } |
411 | |
448 | |
412 | return ev_default_loop_ptr; |
449 | return loop; |
413 | } |
450 | } |
414 | |
451 | |
415 | /* create and destroy alternative loops that don't handle signals */ |
452 | /* create and destroy alternative loops that don't handle signals */ |
416 | struct ev_loop *ev_loop_new (unsigned int flags); |
453 | struct ev_loop *ev_loop_new (unsigned int flags); |
417 | void ev_loop_destroy (EV_P); |
454 | void ev_loop_destroy (EV_P); |
418 | void ev_loop_fork (EV_P); |
455 | void ev_loop_fork (EV_P); |
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456 | void ev_loop_verify (EV_P); |
419 | |
457 | |
420 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
458 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
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459 | void ev_now_update (EV_P); |
421 | |
460 | |
422 | # else |
461 | #else |
423 | |
462 | |
424 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
463 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
425 | |
464 | |
426 | static ev_tstamp |
465 | EV_INLINE ev_tstamp |
427 | ev_now (void) |
466 | ev_now (void) |
428 | { |
467 | { |
429 | extern ev_tstamp ev_rt_now; |
468 | extern ev_tstamp ev_rt_now; |
430 | |
469 | |
431 | return ev_rt_now; |
470 | return ev_rt_now; |
432 | } |
471 | } |
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|
472 | #endif /* multiplicity */ |
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473 | |
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474 | EV_INLINE int |
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475 | ev_is_default_loop (EV_P) |
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476 | { |
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477 | #if EV_MULTIPLICITY |
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478 | extern struct ev_loop *ev_default_loop_ptr; |
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479 | |
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480 | return !!(EV_A == ev_default_loop_ptr); |
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481 | #else |
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482 | return 1; |
433 | # endif |
483 | #endif |
|
|
484 | } |
434 | |
485 | |
435 | void ev_default_destroy (void); /* destroy the default loop */ |
486 | void ev_default_destroy (void); /* destroy the default loop */ |
436 | /* this needs to be called after fork, to duplicate the default loop */ |
487 | /* this needs to be called after fork, to duplicate the default loop */ |
437 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
488 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
438 | /* you can call it in either the parent or the child */ |
489 | /* you can call it in either the parent or the child */ |
439 | /* you can actually call it at any time, anywhere :) */ |
490 | /* you can actually call it at any time, anywhere :) */ |
440 | void ev_default_fork (void); |
491 | void ev_default_fork (void); |
441 | |
492 | |
442 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
493 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
443 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
494 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
444 | #endif |
495 | #endif /* prototypes */ |
445 | |
496 | |
446 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
497 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
447 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
498 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
448 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
499 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
449 | #define EVUNLOOP_ONE 1 /* unloop once */ |
500 | #define EVUNLOOP_ONE 1 /* unloop once */ |
… | |
… | |
462 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
513 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
463 | */ |
514 | */ |
464 | void ev_ref (EV_P); |
515 | void ev_ref (EV_P); |
465 | void ev_unref (EV_P); |
516 | void ev_unref (EV_P); |
466 | |
517 | |
467 | /* convinience function, wait for a single event, without registering an event watcher */ |
518 | /* convenience function, wait for a single event, without registering an event watcher */ |
468 | /* if timeout is < 0, do wait indefinitely */ |
519 | /* if timeout is < 0, do wait indefinitely */ |
469 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
520 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
470 | #endif |
521 | #endif |
471 | |
522 | |
472 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
523 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
… | |
… | |
477 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
528 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
478 | ev_set_cb ((ev), cb_); \ |
529 | ev_set_cb ((ev), cb_); \ |
479 | } while (0) |
530 | } while (0) |
480 | |
531 | |
481 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
532 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
482 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
533 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
483 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
534 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
484 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
535 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
485 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
536 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
486 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
537 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
487 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
538 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
… | |
… | |
509 | |
560 | |
510 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
561 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
511 | #define ev_cb(ev) (ev)->cb /* rw */ |
562 | #define ev_cb(ev) (ev)->cb /* rw */ |
512 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
563 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
513 | |
564 | |
|
|
565 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
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566 | |
514 | #ifndef ev_set_cb |
567 | #ifndef ev_set_cb |
515 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
568 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
516 | #endif |
569 | #endif |
517 | |
570 | |
518 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
571 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |