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80 | |
80 | |
81 | #ifndef EV_ASYNC_ENABLE |
81 | #ifndef EV_ASYNC_ENABLE |
82 | # define EV_ASYNC_ENABLE 1 |
82 | # define EV_ASYNC_ENABLE 1 |
83 | #endif |
83 | #endif |
84 | |
84 | |
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85 | #ifndef EV_WALK_ENABLE |
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86 | # define EV_WALK_ENABLE 0 /* not yet */ |
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87 | #endif |
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88 | |
85 | #ifndef EV_ATOMIC_T |
89 | #ifndef EV_ATOMIC_T |
86 | # include <signal.h> |
90 | # include <signal.h> |
87 | # define EV_ATOMIC_T sig_atomic_t volatile |
91 | # define EV_ATOMIC_T sig_atomic_t volatile |
88 | #endif |
92 | #endif |
89 | |
93 | |
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183 | * or simply 1 for watchers that aren't in some array. |
187 | * or simply 1 for watchers that aren't in some array. |
184 | * pending is either 0, in which case the watcher isn't, |
188 | * pending is either 0, in which case the watcher isn't, |
185 | * or the array index + 1 in the pendings array. |
189 | * or the array index + 1 in the pendings array. |
186 | */ |
190 | */ |
187 | |
191 | |
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192 | #if EV_MINPRI == EV_MAXPRI |
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193 | # define EV_DECL_PRIORITY |
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194 | #else |
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195 | # define EV_DECL_PRIORITY int priority; |
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196 | #endif |
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197 | |
188 | /* shared by all watchers */ |
198 | /* shared by all watchers */ |
189 | #define EV_WATCHER(type) \ |
199 | #define EV_WATCHER(type) \ |
190 | int active; /* private */ \ |
200 | int active; /* private */ \ |
191 | int pending; /* private */ \ |
201 | int pending; /* private */ \ |
192 | int priority; /* private */ \ |
202 | EV_DECL_PRIORITY /* private */ \ |
193 | EV_COMMON /* rw */ \ |
203 | EV_COMMON /* rw */ \ |
194 | EV_CB_DECLARE (type) /* private */ |
204 | EV_CB_DECLARE (type) /* private */ |
195 | |
205 | |
196 | #define EV_WATCHER_LIST(type) \ |
206 | #define EV_WATCHER_LIST(type) \ |
197 | EV_WATCHER (type) \ |
207 | EV_WATCHER (type) \ |
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455 | |
465 | |
456 | /* create and destroy alternative loops that don't handle signals */ |
466 | /* create and destroy alternative loops that don't handle signals */ |
457 | struct ev_loop *ev_loop_new (unsigned int flags); |
467 | struct ev_loop *ev_loop_new (unsigned int flags); |
458 | void ev_loop_destroy (EV_P); |
468 | void ev_loop_destroy (EV_P); |
459 | void ev_loop_fork (EV_P); |
469 | void ev_loop_fork (EV_P); |
460 | void ev_loop_verify (EV_P); |
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461 | |
470 | |
462 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
471 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
463 | void ev_now_update (EV_P); |
472 | void ev_now_update (EV_P); |
464 | |
473 | |
465 | #else |
474 | #else |
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492 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
501 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
493 | /* you can call it in either the parent or the child */ |
502 | /* you can call it in either the parent or the child */ |
494 | /* you can actually call it at any time, anywhere :) */ |
503 | /* you can actually call it at any time, anywhere :) */ |
495 | void ev_default_fork (void); |
504 | void ev_default_fork (void); |
496 | |
505 | |
497 | #if 0 |
506 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
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507 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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508 | unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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509 | void ev_loop_verify (EV_P); /* abort if loop data corrupted */ |
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510 | |
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511 | #if EV_WALK_ENABLE |
498 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
512 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
499 | /* callback on every such watcher. The callback might stop the watcher, */ |
513 | /* callback on every such watcher. The callback might stop the watcher, */ |
500 | /* but do nothing else with the loop */ |
514 | /* but do nothing else with the loop */ |
501 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
515 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
502 | #endif |
516 | #endif |
503 | |
517 | |
504 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
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505 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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506 | #endif /* prototypes */ |
518 | #endif /* prototypes */ |
507 | |
519 | |
508 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
520 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
509 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
521 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
510 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
522 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
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524 | * 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. |
525 | */ |
537 | */ |
526 | void ev_ref (EV_P); |
538 | void ev_ref (EV_P); |
527 | void ev_unref (EV_P); |
539 | void ev_unref (EV_P); |
528 | |
540 | |
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541 | /* |
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542 | * stop/start the timer handling. |
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543 | */ |
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544 | void ev_suspend (EV_P); |
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545 | void ev_resume (EV_P); |
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546 | |
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547 | /* |
529 | /* convenience function, wait for a single event, without registering an event watcher */ |
548 | * convenience function, wait for a single event, without registering an event watcher |
530 | /* if timeout is < 0, do wait indefinitely */ |
549 | * if timeout is < 0, do wait indefinitely |
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550 | */ |
531 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
551 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
532 | #endif |
552 | #endif |
533 | |
553 | |
534 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
554 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
535 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
555 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
536 | #define ev_init(ev,cb_) do { \ |
556 | #define ev_init(ev,cb_) do { \ |
537 | ((ev_watcher *)(void *)(ev))->active = \ |
557 | ((ev_watcher *)(void *)(ev))->active = \ |
538 | ((ev_watcher *)(void *)(ev))->pending = \ |
558 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
539 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
559 | ev_set_priority ((ev), 0); \ |
540 | ev_set_cb ((ev), cb_); \ |
560 | ev_set_cb ((ev), cb_); \ |
541 | } while (0) |
561 | } while (0) |
542 | |
562 | |
543 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
563 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
544 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
564 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
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567 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
587 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
568 | |
588 | |
569 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
589 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
570 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
590 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
571 | |
591 | |
572 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
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573 | #define ev_cb(ev) (ev)->cb /* rw */ |
592 | #define ev_cb(ev) (ev)->cb /* rw */ |
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593 | |
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594 | #if EV_MINPRI == EV_MAXPRI |
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595 | # define ev_priority(ev) ((ev), EV_MINPRI) |
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596 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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597 | #else |
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598 | # define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
574 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
599 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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600 | #endif |
575 | |
601 | |
576 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
602 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
577 | |
603 | |
578 | #ifndef ev_set_cb |
604 | #ifndef ev_set_cb |
579 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
605 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |