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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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145 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
149 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
146 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
150 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
147 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
151 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
148 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
152 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
149 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
153 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
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154 | #define EV_CUSTOM 0x01000000 /* for use by user code */ |
150 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
155 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
151 | |
156 | |
152 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
157 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
153 | #ifndef EV_COMMON |
158 | #ifndef EV_COMMON |
154 | # define EV_COMMON void *data; |
159 | # define EV_COMMON void *data; |
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182 | * or simply 1 for watchers that aren't in some array. |
187 | * or simply 1 for watchers that aren't in some array. |
183 | * pending is either 0, in which case the watcher isn't, |
188 | * pending is either 0, in which case the watcher isn't, |
184 | * or the array index + 1 in the pendings array. |
189 | * or the array index + 1 in the pendings array. |
185 | */ |
190 | */ |
186 | |
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 | |
187 | /* shared by all watchers */ |
198 | /* shared by all watchers */ |
188 | #define EV_WATCHER(type) \ |
199 | #define EV_WATCHER(type) \ |
189 | int active; /* private */ \ |
200 | int active; /* private */ \ |
190 | int pending; /* private */ \ |
201 | int pending; /* private */ \ |
191 | int priority; /* private */ \ |
202 | EV_DECL_PRIORITY /* private */ \ |
192 | EV_COMMON /* rw */ \ |
203 | EV_COMMON /* rw */ \ |
193 | EV_CB_DECLARE (type) /* private */ |
204 | EV_CB_DECLARE (type) /* private */ |
194 | |
205 | |
195 | #define EV_WATCHER_LIST(type) \ |
206 | #define EV_WATCHER_LIST(type) \ |
196 | EV_WATCHER (type) \ |
207 | EV_WATCHER (type) \ |
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454 | |
465 | |
455 | /* create and destroy alternative loops that don't handle signals */ |
466 | /* create and destroy alternative loops that don't handle signals */ |
456 | struct ev_loop *ev_loop_new (unsigned int flags); |
467 | struct ev_loop *ev_loop_new (unsigned int flags); |
457 | void ev_loop_destroy (EV_P); |
468 | void ev_loop_destroy (EV_P); |
458 | void ev_loop_fork (EV_P); |
469 | void ev_loop_fork (EV_P); |
459 | void ev_loop_verify (EV_P); |
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460 | |
470 | |
461 | 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 */ |
462 | void ev_now_update (EV_P); |
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463 | |
472 | |
464 | #else |
473 | #else |
465 | |
474 | |
466 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
475 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
467 | |
476 | |
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491 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
500 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
492 | /* you can call it in either the parent or the child */ |
501 | /* you can call it in either the parent or the child */ |
493 | /* you can actually call it at any time, anywhere :) */ |
502 | /* you can actually call it at any time, anywhere :) */ |
494 | void ev_default_fork (void); |
503 | void ev_default_fork (void); |
495 | |
504 | |
496 | #if 0 |
505 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
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506 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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507 | unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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508 | void ev_loop_verify (EV_P); /* abort if loop data corrupted */ |
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509 | |
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510 | void ev_now_update (EV_P); /* update event loop time */ |
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511 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
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512 | |
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513 | #if EV_WALK_ENABLE |
497 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
514 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
498 | /* callback on every such watcher. The callback might stop the watcher, */ |
515 | /* callback on every such watcher. The callback might stop the watcher, */ |
499 | /* but do nothing else with the loop */ |
516 | /* but do nothing else with the loop */ |
500 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
517 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
501 | #endif |
518 | #endif |
502 | |
519 | |
503 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
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504 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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505 | #endif /* prototypes */ |
520 | #endif /* prototypes */ |
506 | |
521 | |
507 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
522 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
508 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
523 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
509 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
524 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
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523 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
538 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
524 | */ |
539 | */ |
525 | void ev_ref (EV_P); |
540 | void ev_ref (EV_P); |
526 | void ev_unref (EV_P); |
541 | void ev_unref (EV_P); |
527 | |
542 | |
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543 | /* |
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544 | * stop/start the timer handling. |
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545 | */ |
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546 | void ev_suspend (EV_P); |
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547 | void ev_resume (EV_P); |
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548 | |
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549 | /* |
528 | /* convenience function, wait for a single event, without registering an event watcher */ |
550 | * convenience function, wait for a single event, without registering an event watcher |
529 | /* if timeout is < 0, do wait indefinitely */ |
551 | * if timeout is < 0, do wait indefinitely |
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552 | */ |
530 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
553 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
531 | #endif |
554 | #endif |
532 | |
555 | |
533 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
556 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
534 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
557 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
535 | #define ev_init(ev,cb_) do { \ |
558 | #define ev_init(ev,cb_) do { \ |
536 | ((ev_watcher *)(void *)(ev))->active = \ |
559 | ((ev_watcher *)(void *)(ev))->active = \ |
537 | ((ev_watcher *)(void *)(ev))->pending = \ |
560 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
538 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
561 | ev_set_priority ((ev), 0); \ |
539 | ev_set_cb ((ev), cb_); \ |
562 | ev_set_cb ((ev), cb_); \ |
540 | } while (0) |
563 | } while (0) |
541 | |
564 | |
542 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
565 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
543 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
566 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
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566 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
589 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
567 | |
590 | |
568 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
591 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
569 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
592 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
570 | |
593 | |
571 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
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572 | #define ev_cb(ev) (ev)->cb /* rw */ |
594 | #define ev_cb(ev) (ev)->cb /* rw */ |
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595 | |
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596 | #if EV_MINPRI == EV_MAXPRI |
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597 | # define ev_priority(ev) ((ev), EV_MINPRI) |
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598 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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599 | #else |
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600 | # define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
573 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
601 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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602 | #endif |
574 | |
603 | |
575 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
604 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
576 | |
605 | |
577 | #ifndef ev_set_cb |
606 | #ifndef ev_set_cb |
578 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
607 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |