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164 | /* |
164 | /* |
165 | * struct member types: |
165 | * struct member types: |
166 | * private: you can look at them, but not change them, and they might not mean anything to you. |
166 | * private: you can look at them, but not change them, and they might not mean anything to you. |
167 | * ro: can be read anytime, but only changed when the watcher isn't active |
167 | * ro: can be read anytime, but only changed when the watcher isn't active |
168 | * rw: can be read and modified anytime, even when the watcher is active |
168 | * rw: can be read and modified anytime, even when the watcher is active |
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169 | * |
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170 | * some internal details that might be helpful for debugging: |
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171 | * |
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172 | * active is either 0, which means the watcher is not active, |
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173 | * or the array index of the watcher (periodics, timers) |
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174 | * or the array index + 1 (most other watchers) |
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175 | * or simply 1 for watchers that aren't in some array. |
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176 | * pending is either 0, in which case the watcher isn't, |
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177 | * or the array index + 1 in the pendings array. |
169 | */ |
178 | */ |
170 | |
179 | |
171 | /* shared by all watchers */ |
180 | /* shared by all watchers */ |
172 | #define EV_WATCHER(type) \ |
181 | #define EV_WATCHER(type) \ |
173 | int active; /* private */ \ |
182 | int active; /* private */ \ |
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408 | * retryable syscall error |
417 | * retryable syscall error |
409 | * (such as failed select, poll, epoll_wait) |
418 | * (such as failed select, poll, epoll_wait) |
410 | */ |
419 | */ |
411 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
420 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
412 | |
421 | |
413 | # if EV_MULTIPLICITY |
422 | #if EV_MULTIPLICITY |
414 | EV_INLINE struct ev_loop * |
423 | EV_INLINE struct ev_loop * |
415 | ev_default_loop_uc (void) |
424 | ev_default_loop_uc (void) |
416 | { |
425 | { |
417 | extern struct ev_loop *ev_default_loop_ptr; |
426 | extern struct ev_loop *ev_default_loop_ptr; |
418 | |
427 | |
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438 | |
447 | |
439 | /* create and destroy alternative loops that don't handle signals */ |
448 | /* create and destroy alternative loops that don't handle signals */ |
440 | struct ev_loop *ev_loop_new (unsigned int flags); |
449 | struct ev_loop *ev_loop_new (unsigned int flags); |
441 | void ev_loop_destroy (EV_P); |
450 | void ev_loop_destroy (EV_P); |
442 | void ev_loop_fork (EV_P); |
451 | void ev_loop_fork (EV_P); |
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452 | void ev_loop_verify (EV_P); |
443 | |
453 | |
444 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
454 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
445 | |
455 | |
446 | # else |
456 | #else |
447 | |
457 | |
448 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
458 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
449 | |
459 | |
450 | EV_INLINE ev_tstamp |
460 | EV_INLINE ev_tstamp |
451 | ev_now (void) |
461 | ev_now (void) |
452 | { |
462 | { |
453 | extern ev_tstamp ev_rt_now; |
463 | extern ev_tstamp ev_rt_now; |
454 | |
464 | |
455 | return ev_rt_now; |
465 | return ev_rt_now; |
456 | } |
466 | } |
457 | # endif |
467 | #endif /* multiplicity */ |
458 | |
468 | |
459 | EV_INLINE int |
469 | EV_INLINE int |
460 | ev_is_default_loop (EV_P) |
470 | ev_is_default_loop (EV_P) |
461 | { |
471 | { |
462 | #if EV_MULTIPLICITY |
472 | #if EV_MULTIPLICITY |
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475 | /* you can actually call it at any time, anywhere :) */ |
485 | /* you can actually call it at any time, anywhere :) */ |
476 | void ev_default_fork (void); |
486 | void ev_default_fork (void); |
477 | |
487 | |
478 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
488 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
479 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
489 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
480 | #endif |
490 | #endif /* prototypes */ |
481 | |
491 | |
482 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
492 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
483 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
493 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
484 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
494 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
485 | #define EVUNLOOP_ONE 1 /* unloop once */ |
495 | #define EVUNLOOP_ONE 1 /* unloop once */ |
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513 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
523 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
514 | ev_set_cb ((ev), cb_); \ |
524 | ev_set_cb ((ev), cb_); \ |
515 | } while (0) |
525 | } while (0) |
516 | |
526 | |
517 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
527 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
518 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
528 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
519 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
529 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
520 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
530 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
521 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
531 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
522 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
532 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
523 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
533 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
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545 | |
555 | |
546 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
556 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
547 | #define ev_cb(ev) (ev)->cb /* rw */ |
557 | #define ev_cb(ev) (ev)->cb /* rw */ |
548 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
558 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
549 | |
559 | |
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560 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
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561 | |
550 | #ifndef ev_set_cb |
562 | #ifndef ev_set_cb |
551 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
563 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
552 | #endif |
564 | #endif |
553 | |
565 | |
554 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
566 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |