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35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifndef EV_H__ |
40 | #ifndef EV_H_ |
41 | #define EV_H__ |
41 | #define EV_H_ |
42 | |
42 | |
43 | #ifdef __cplusplus |
43 | #ifdef __cplusplus |
44 | extern "C" { |
44 | extern "C" { |
45 | #endif |
45 | #endif |
46 | |
46 | |
… | |
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161 | #ifndef EV_PROTOTYPES |
161 | #ifndef EV_PROTOTYPES |
162 | # define EV_PROTOTYPES 1 |
162 | # define EV_PROTOTYPES 1 |
163 | #endif |
163 | #endif |
164 | |
164 | |
165 | #define EV_VERSION_MAJOR 3 |
165 | #define EV_VERSION_MAJOR 3 |
166 | #define EV_VERSION_MINOR 0 |
166 | #define EV_VERSION_MINOR 9 |
167 | |
167 | |
168 | #ifndef EV_CB_DECLARE |
168 | #ifndef EV_CB_DECLARE |
169 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
169 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
170 | #endif |
170 | #endif |
171 | #ifndef EV_CB_INVOKE |
171 | #ifndef EV_CB_INVOKE |
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187 | * or simply 1 for watchers that aren't in some array. |
187 | * or simply 1 for watchers that aren't in some array. |
188 | * pending is either 0, in which case the watcher isn't, |
188 | * pending is either 0, in which case the watcher isn't, |
189 | * or the array index + 1 in the pendings array. |
189 | * or the array index + 1 in the pendings array. |
190 | */ |
190 | */ |
191 | |
191 | |
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|
192 | #if EV_MINPRI == EV_MAXPRI |
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193 | # define EV_DECL_PRIORITY |
|
|
194 | #else |
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195 | # define EV_DECL_PRIORITY int priority; |
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|
196 | #endif |
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197 | |
192 | /* shared by all watchers */ |
198 | /* shared by all watchers */ |
193 | #define EV_WATCHER(type) \ |
199 | #define EV_WATCHER(type) \ |
194 | int active; /* private */ \ |
200 | int active; /* private */ \ |
195 | int pending; /* private */ \ |
201 | int pending; /* private */ \ |
196 | int priority; /* private */ \ |
202 | EV_DECL_PRIORITY /* private */ \ |
197 | EV_COMMON /* rw */ \ |
203 | EV_COMMON /* rw */ \ |
198 | EV_CB_DECLARE (type) /* private */ |
204 | EV_CB_DECLARE (type) /* private */ |
199 | |
205 | |
200 | #define EV_WATCHER_LIST(type) \ |
206 | #define EV_WATCHER_LIST(type) \ |
201 | EV_WATCHER (type) \ |
207 | EV_WATCHER (type) \ |
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357 | EV_WATCHER (ev_async) |
363 | EV_WATCHER (ev_async) |
358 | |
364 | |
359 | EV_ATOMIC_T sent; /* private */ |
365 | EV_ATOMIC_T sent; /* private */ |
360 | } ev_async; |
366 | } ev_async; |
361 | |
367 | |
362 | # define ev_async_pending(w) ((w)->sent + 0) |
368 | # define ev_async_pending(w) (+(w)->sent) |
363 | #endif |
369 | #endif |
364 | |
370 | |
365 | /* the presence of this union forces similar struct layout */ |
371 | /* the presence of this union forces similar struct layout */ |
366 | union ev_any_watcher |
372 | union ev_any_watcher |
367 | { |
373 | { |
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396 | /* the default */ |
402 | /* the default */ |
397 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
403 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
398 | /* flag bits */ |
404 | /* flag bits */ |
399 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
405 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
400 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
406 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
|
|
407 | /* debugging/feature disable */ |
|
|
408 | #define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */ |
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|
409 | #define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */ |
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|
410 | #define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */ |
401 | /* method bits to be ored together */ |
411 | /* method bits to be ored together */ |
402 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
412 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
403 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
413 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
404 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
414 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
405 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
415 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
406 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
416 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
407 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
417 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
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|
418 | #define EVBACKEND_ALL 0x0000003FU |
408 | |
419 | |
409 | #if EV_PROTOTYPES |
420 | #if EV_PROTOTYPES |
410 | int ev_version_major (void); |
421 | int ev_version_major (void); |
411 | int ev_version_minor (void); |
422 | int ev_version_minor (void); |
412 | |
423 | |
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459 | |
470 | |
460 | /* create and destroy alternative loops that don't handle signals */ |
471 | /* create and destroy alternative loops that don't handle signals */ |
461 | struct ev_loop *ev_loop_new (unsigned int flags); |
472 | struct ev_loop *ev_loop_new (unsigned int flags); |
462 | void ev_loop_destroy (EV_P); |
473 | void ev_loop_destroy (EV_P); |
463 | void ev_loop_fork (EV_P); |
474 | void ev_loop_fork (EV_P); |
464 | void ev_loop_verify (EV_P); |
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|
465 | |
475 | |
466 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
476 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
467 | void ev_now_update (EV_P); |
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|
468 | |
477 | |
469 | #else |
478 | #else |
470 | |
479 | |
471 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
480 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
472 | |
481 | |
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496 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
505 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
497 | /* you can call it in either the parent or the child */ |
506 | /* you can call it in either the parent or the child */ |
498 | /* you can actually call it at any time, anywhere :) */ |
507 | /* you can actually call it at any time, anywhere :) */ |
499 | void ev_default_fork (void); |
508 | void ev_default_fork (void); |
500 | |
509 | |
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510 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
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511 | |
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512 | void ev_now_update (EV_P); /* update event loop time */ |
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513 | |
501 | #if EV_WALK_ENABLE |
514 | #if EV_WALK_ENABLE |
502 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
515 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
503 | /* callback on every such watcher. The callback might stop the watcher, */ |
516 | /* callback on every such watcher. The callback might stop the watcher, */ |
504 | /* but do nothing else with the loop */ |
517 | /* but do nothing else with the loop */ |
505 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
518 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
506 | #endif |
519 | #endif |
507 | |
520 | |
508 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
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|
509 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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|
510 | #endif /* prototypes */ |
521 | #endif /* prototypes */ |
511 | |
522 | |
512 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
523 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
513 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
524 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
514 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
525 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
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517 | |
528 | |
518 | #if EV_PROTOTYPES |
529 | #if EV_PROTOTYPES |
519 | void ev_loop (EV_P_ int flags); |
530 | void ev_loop (EV_P_ int flags); |
520 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
531 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
521 | |
532 | |
522 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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|
523 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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524 | |
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525 | /* |
533 | /* |
526 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
534 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
527 | * keeps one reference. if you have a long-runing watcher you never unregister that |
535 | * keeps one reference. if you have a long-running watcher you never unregister that |
528 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
536 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
529 | */ |
537 | */ |
530 | void ev_ref (EV_P); |
538 | void ev_ref (EV_P); |
531 | void ev_unref (EV_P); |
539 | void ev_unref (EV_P); |
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540 | |
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541 | /* |
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542 | * convenience function, wait for a single event, without registering an event watcher |
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543 | * if timeout is < 0, do wait indefinitely |
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544 | */ |
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545 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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546 | |
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547 | # if EV_MINIMAL < 2 |
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548 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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549 | unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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550 | void ev_loop_verify (EV_P); /* abort if loop data corrupted */ |
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551 | |
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552 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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553 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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554 | |
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555 | /* advanced stuff for threading etc. support, see docs */ |
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556 | void ev_set_userdata (EV_P_ void *data); |
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557 | void *ev_userdata (EV_P); |
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558 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
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559 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
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560 | |
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561 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
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562 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
532 | |
563 | |
533 | /* |
564 | /* |
534 | * stop/start the timer handling. |
565 | * stop/start the timer handling. |
535 | */ |
566 | */ |
536 | void ev_suspend (EV_P); |
567 | void ev_suspend (EV_P); |
537 | void ev_resume (EV_P); |
568 | void ev_resume (EV_P); |
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569 | #endif |
538 | |
570 | |
539 | /* |
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540 | * convenience function, wait for a single event, without registering an event watcher |
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541 | * if timeout is < 0, do wait indefinitely |
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542 | */ |
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543 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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544 | #endif |
571 | #endif |
545 | |
572 | |
546 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
573 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
547 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
574 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
548 | #define ev_init(ev,cb_) do { \ |
575 | #define ev_init(ev,cb_) do { \ |
549 | ((ev_watcher *)(void *)(ev))->active = \ |
576 | ((ev_watcher *)(void *)(ev))->active = \ |
550 | ((ev_watcher *)(void *)(ev))->pending = \ |
577 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
551 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
578 | ev_set_priority ((ev), 0); \ |
552 | ev_set_cb ((ev), cb_); \ |
579 | ev_set_cb ((ev), cb_); \ |
553 | } while (0) |
580 | } while (0) |
554 | |
581 | |
555 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
582 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
556 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
583 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
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579 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
606 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
580 | |
607 | |
581 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
608 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
582 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
609 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
583 | |
610 | |
584 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
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585 | #define ev_cb(ev) (ev)->cb /* rw */ |
611 | #define ev_cb(ev) (ev)->cb /* rw */ |
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612 | |
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613 | #if EV_MINPRI == EV_MAXPRI |
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614 | # define ev_priority(ev) ((ev), EV_MINPRI) |
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615 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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|
616 | #else |
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617 | # define ev_priority(ev) (+(((ev_watcher *)(void *)(ev))->priority)) |
586 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
618 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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|
619 | #endif |
587 | |
620 | |
588 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
621 | #define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at) |
589 | |
622 | |
590 | #ifndef ev_set_cb |
623 | #ifndef ev_set_cb |
591 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
624 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
592 | #endif |
625 | #endif |
593 | |
626 | |
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608 | |
641 | |
609 | void ev_timer_start (EV_P_ ev_timer *w); |
642 | void ev_timer_start (EV_P_ ev_timer *w); |
610 | void ev_timer_stop (EV_P_ ev_timer *w); |
643 | void ev_timer_stop (EV_P_ ev_timer *w); |
611 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
644 | /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ |
612 | void ev_timer_again (EV_P_ ev_timer *w); |
645 | void ev_timer_again (EV_P_ ev_timer *w); |
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646 | /* return remaining time */ |
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647 | ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w); |
613 | |
648 | |
614 | #if EV_PERIODIC_ENABLE |
649 | #if EV_PERIODIC_ENABLE |
615 | void ev_periodic_start (EV_P_ ev_periodic *w); |
650 | void ev_periodic_start (EV_P_ ev_periodic *w); |
616 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
651 | void ev_periodic_stop (EV_P_ ev_periodic *w); |
617 | void ev_periodic_again (EV_P_ ev_periodic *w); |
652 | void ev_periodic_again (EV_P_ ev_periodic *w); |