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101 | |
101 | |
102 | #ifndef EV_FORK_ENABLE |
102 | #ifndef EV_FORK_ENABLE |
103 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
103 | # define EV_FORK_ENABLE EV_FEATURE_WATCHERS |
104 | #endif |
104 | #endif |
105 | |
105 | |
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106 | #ifndef EV_CLEANUP_ENABLE |
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107 | # define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS |
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108 | #endif |
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109 | |
106 | #ifndef EV_SIGNAL_ENABLE |
110 | #ifndef EV_SIGNAL_ENABLE |
107 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
111 | # define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS |
108 | #endif |
112 | #endif |
109 | |
113 | |
110 | #ifndef EV_CHILD_ENABLE |
114 | #ifndef EV_CHILD_ENABLE |
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156 | struct ev_loop; |
160 | struct ev_loop; |
157 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
161 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
158 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
162 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
159 | # define EV_A loop /* a loop as sole argument to a function call */ |
163 | # define EV_A loop /* a loop as sole argument to a function call */ |
160 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
164 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
161 | # define EV_DEFAULT_UC ev_default_loop_uc () /* the default loop, if initialised, as sole arg */ |
165 | # define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */ |
162 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
166 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
163 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
167 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
164 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
168 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
165 | #else |
169 | #else |
166 | # define EV_P void |
170 | # define EV_P void |
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187 | #endif |
191 | #endif |
188 | |
192 | |
189 | /*****************************************************************************/ |
193 | /*****************************************************************************/ |
190 | |
194 | |
191 | #define EV_VERSION_MAJOR 4 |
195 | #define EV_VERSION_MAJOR 4 |
192 | #define EV_VERSION_MINOR 0 |
196 | #define EV_VERSION_MINOR 1 |
193 | |
197 | |
194 | /* eventmask, revents, events... */ |
198 | /* eventmask, revents, events... */ |
195 | enum { |
199 | enum { |
196 | EV_UNDEF = -1, /* guaranteed to be invalid */ |
200 | EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */ |
197 | EV_NONE = 0x00, /* no events */ |
201 | EV_NONE = 0x00, /* no events */ |
198 | EV_READ = 0x01, /* ev_io detected read will not block */ |
202 | EV_READ = 0x01, /* ev_io detected read will not block */ |
199 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
203 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
200 | EV__IOFDSET = 0x80, /* internal use only */ |
204 | EV__IOFDSET = 0x80, /* internal use only */ |
201 | EV_IO = EV_READ, /* alias for type-detection */ |
205 | EV_IO = EV_READ, /* alias for type-detection */ |
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210 | EV_IDLE = 0x00002000, /* event loop is idling */ |
214 | EV_IDLE = 0x00002000, /* event loop is idling */ |
211 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
215 | EV_PREPARE = 0x00004000, /* event loop about to poll */ |
212 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
216 | EV_CHECK = 0x00008000, /* event loop finished poll */ |
213 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
217 | EV_EMBED = 0x00010000, /* embedded event loop needs sweep */ |
214 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
218 | EV_FORK = 0x00020000, /* event loop resumed in child */ |
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219 | EV_CLEANUP = 0x00040000, /* event loop resumed in child */ |
215 | EV_ASYNC = 0x00040000, /* async intra-loop signal */ |
220 | EV_ASYNC = 0x00080000, /* async intra-loop signal */ |
216 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
221 | EV_CUSTOM = 0x01000000, /* for use by user code */ |
217 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
222 | EV_ERROR = 0x80000000 /* sent when an error occurs */ |
218 | }; |
223 | }; |
219 | |
224 | |
220 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
225 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
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389 | EV_WATCHER (ev_check) |
394 | EV_WATCHER (ev_check) |
390 | } ev_check; |
395 | } ev_check; |
391 | |
396 | |
392 | #if EV_FORK_ENABLE |
397 | #if EV_FORK_ENABLE |
393 | /* the callback gets invoked before check in the child process when a fork was detected */ |
398 | /* the callback gets invoked before check in the child process when a fork was detected */ |
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399 | /* revent EV_FORK */ |
394 | typedef struct ev_fork |
400 | typedef struct ev_fork |
395 | { |
401 | { |
396 | EV_WATCHER (ev_fork) |
402 | EV_WATCHER (ev_fork) |
397 | } ev_fork; |
403 | } ev_fork; |
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404 | #endif |
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405 | |
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406 | #if EV_CLEANUP_ENABLE |
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407 | /* is invoked just before the loop gets destroyed */ |
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408 | /* revent EV_CLEANUP */ |
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409 | typedef struct ev_cleanup |
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410 | { |
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411 | EV_WATCHER (ev_cleanup) |
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412 | } ev_cleanup; |
398 | #endif |
413 | #endif |
399 | |
414 | |
400 | #if EV_EMBED_ENABLE |
415 | #if EV_EMBED_ENABLE |
401 | /* used to embed an event loop inside another */ |
416 | /* used to embed an event loop inside another */ |
402 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
417 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
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410 | ev_check check; /* unused */ |
425 | ev_check check; /* unused */ |
411 | ev_timer timer; /* unused */ |
426 | ev_timer timer; /* unused */ |
412 | ev_periodic periodic; /* unused */ |
427 | ev_periodic periodic; /* unused */ |
413 | ev_idle idle; /* unused */ |
428 | ev_idle idle; /* unused */ |
414 | ev_fork fork; /* private */ |
429 | ev_fork fork; /* private */ |
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430 | #if EV_CLEANUP_ENABLE |
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431 | ev_cleanup cleanup; /* unused */ |
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432 | #endif |
415 | } ev_embed; |
433 | } ev_embed; |
416 | #endif |
434 | #endif |
417 | |
435 | |
418 | #if EV_ASYNC_ENABLE |
436 | #if EV_ASYNC_ENABLE |
419 | /* invoked when somebody calls ev_async_send on the watcher */ |
437 | /* invoked when somebody calls ev_async_send on the watcher */ |
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447 | #endif |
465 | #endif |
448 | struct ev_prepare prepare; |
466 | struct ev_prepare prepare; |
449 | struct ev_check check; |
467 | struct ev_check check; |
450 | #if EV_FORK_ENABLE |
468 | #if EV_FORK_ENABLE |
451 | struct ev_fork fork; |
469 | struct ev_fork fork; |
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470 | #endif |
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471 | #if EV_CLEANUP_ENABLE |
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472 | struct ev_cleanup cleanup; |
452 | #endif |
473 | #endif |
453 | #if EV_EMBED_ENABLE |
474 | #if EV_EMBED_ENABLE |
454 | struct ev_embed embed; |
475 | struct ev_embed embed; |
455 | #endif |
476 | #endif |
456 | #if EV_ASYNC_ENABLE |
477 | #if EV_ASYNC_ENABLE |
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508 | * (such as failed select, poll, epoll_wait) |
529 | * (such as failed select, poll, epoll_wait) |
509 | */ |
530 | */ |
510 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
531 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
511 | |
532 | |
512 | #if EV_MULTIPLICITY |
533 | #if EV_MULTIPLICITY |
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534 | |
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535 | /* the default loop is the only one that handles signals and child watchers */ |
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536 | /* you can call this as often as you like */ |
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537 | struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0)); |
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538 | |
513 | EV_INLINE struct ev_loop * |
539 | EV_INLINE struct ev_loop * |
514 | ev_default_loop_uc (void) |
540 | ev_default_loop_uc_ (void) |
515 | { |
541 | { |
516 | extern struct ev_loop *ev_default_loop_ptr; |
542 | extern struct ev_loop *ev_default_loop_ptr; |
517 | |
543 | |
518 | return ev_default_loop_ptr; |
544 | return ev_default_loop_ptr; |
519 | } |
545 | } |
520 | |
546 | |
521 | /* the default loop is the only one that handles signals and child watchers */ |
547 | EV_INLINE int |
522 | /* you can call this as often as you like */ |
548 | ev_is_default_loop (EV_P) |
523 | EV_INLINE struct ev_loop * |
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524 | ev_default_loop (unsigned int flags EV_CPP (= 0)) |
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525 | { |
549 | { |
526 | struct ev_loop *loop = ev_default_loop_uc (); |
550 | return EV_A == EV_DEFAULT_UC; |
527 | |
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528 | if (!loop) |
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529 | { |
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530 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
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531 | |
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532 | loop = ev_default_loop_init (flags); |
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533 | } |
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534 | |
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535 | return loop; |
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536 | } |
551 | } |
537 | |
552 | |
538 | /* create and destroy alternative loops that don't handle signals */ |
553 | /* create and destroy alternative loops that don't handle signals */ |
539 | struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); |
554 | struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0)); |
540 | void ev_loop_destroy (EV_P); |
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541 | void ev_loop_fork (EV_P); |
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542 | |
555 | |
543 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
556 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
544 | |
557 | |
545 | #else |
558 | #else |
546 | |
559 | |
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551 | { |
564 | { |
552 | extern ev_tstamp ev_rt_now; |
565 | extern ev_tstamp ev_rt_now; |
553 | |
566 | |
554 | return ev_rt_now; |
567 | return ev_rt_now; |
555 | } |
568 | } |
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569 | |
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570 | /* looks weird, but ev_is_default_loop (EV_A) still works if this exists */ |
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571 | EV_INLINE int |
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572 | ev_is_default_loop (void) |
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573 | { |
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574 | return 1; |
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575 | } |
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576 | |
556 | #endif /* multiplicity */ |
577 | #endif /* multiplicity */ |
557 | |
578 | |
558 | EV_INLINE int |
579 | /* destroy event loops, also works for the default loop */ |
559 | ev_is_default_loop (EV_P) |
580 | void ev_loop_destroy (EV_P); |
560 | { |
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561 | #if EV_MULTIPLICITY |
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562 | extern struct ev_loop *ev_default_loop_ptr; |
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563 | |
581 | |
564 | return !!(EV_A == ev_default_loop_ptr); |
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565 | #else |
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566 | return 1; |
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567 | #endif |
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568 | } |
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569 | |
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570 | void ev_default_destroy (void); /* destroy the default loop */ |
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571 | /* this needs to be called after fork, to duplicate the default loop */ |
582 | /* this needs to be called after fork, to duplicate the loop */ |
572 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
583 | /* when you want to re-use it in the child */ |
573 | /* you can call it in either the parent or the child */ |
584 | /* you can call it in either the parent or the child */ |
574 | /* you can actually call it at any time, anywhere :) */ |
585 | /* you can actually call it at any time, anywhere :) */ |
575 | void ev_default_fork (void); |
586 | void ev_loop_fork (EV_P); |
576 | |
587 | |
577 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
588 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
578 | |
589 | |
579 | void ev_now_update (EV_P); /* update event loop time */ |
590 | void ev_now_update (EV_P); /* update event loop time */ |
580 | |
591 | |
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662 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
673 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
663 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
674 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
664 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
675 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
665 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
676 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
666 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
677 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
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678 | #define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */ |
667 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
679 | #define ev_async_set(ev) /* nop, yes, this is a serious in-joke */ |
668 | |
680 | |
669 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
681 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
670 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
682 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
671 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
683 | #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0) |
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675 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
687 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
676 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
688 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
677 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
689 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
678 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
690 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
679 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
691 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
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692 | #define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0) |
680 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
693 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
681 | |
694 | |
682 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
695 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
683 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
696 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
684 | |
697 | |
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762 | #endif |
775 | #endif |
763 | |
776 | |
764 | # if EV_FORK_ENABLE |
777 | # if EV_FORK_ENABLE |
765 | void ev_fork_start (EV_P_ ev_fork *w); |
778 | void ev_fork_start (EV_P_ ev_fork *w); |
766 | void ev_fork_stop (EV_P_ ev_fork *w); |
779 | void ev_fork_stop (EV_P_ ev_fork *w); |
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780 | # endif |
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781 | |
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782 | # if EV_CLEANUP_ENABLE |
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783 | void ev_cleanup_start (EV_P_ ev_cleanup *w); |
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784 | void ev_cleanup_stop (EV_P_ ev_cleanup *w); |
767 | # endif |
785 | # endif |
768 | |
786 | |
769 | # if EV_EMBED_ENABLE |
787 | # if EV_EMBED_ENABLE |
770 | /* only supported when loop to be embedded is in fact embeddable */ |
788 | /* only supported when loop to be embedded is in fact embeddable */ |
771 | void ev_embed_start (EV_P_ ev_embed *w); |
789 | void ev_embed_start (EV_P_ ev_embed *w); |
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786 | #define EVUNLOOP_ONE EVBREAK_ONE |
804 | #define EVUNLOOP_ONE EVBREAK_ONE |
787 | #define EVUNLOOP_ALL EVBREAK_ALL |
805 | #define EVUNLOOP_ALL EVBREAK_ALL |
788 | #if EV_PROTOTYPES |
806 | #if EV_PROTOTYPES |
789 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
807 | EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); } |
790 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
808 | EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); } |
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809 | EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); } |
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810 | EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); } |
791 | #if EV_FEATURE_API |
811 | #if EV_FEATURE_API |
792 | EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); } |
812 | EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); } |
793 | EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); } |
813 | EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); } |
794 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
814 | EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); } |
795 | #endif |
815 | #endif |
796 | #endif |
816 | #endif |
797 | #else |
817 | #else |
798 | typedef struct ev_loop ev_loop; |
818 | typedef struct ev_loop ev_loop; |
799 | #endif |
819 | #endif |