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145 | # include <sys/types.h> |
145 | # include <sys/types.h> |
146 | # endif |
146 | # endif |
147 | # include <sys/stat.h> |
147 | # include <sys/stat.h> |
148 | #endif |
148 | #endif |
149 | |
149 | |
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150 | #ifdef __cplusplus |
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151 | # define EV_DEFARG(x) = x |
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152 | #else |
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153 | # define EV_DEFARG(x) |
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154 | #endif |
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155 | |
150 | /* support multiple event loops? */ |
156 | /* support multiple event loops? */ |
151 | #if EV_MULTIPLICITY |
157 | #if EV_MULTIPLICITY |
152 | struct ev_loop; |
158 | struct ev_loop; |
153 | # define EV_P struct ev_loop *loop |
159 | # define EV_P struct ev_loop *loop /* a loop as sole parameter in a declaration */ |
154 | # define EV_P_ EV_P, |
160 | # define EV_P_ EV_P, /* a loop as first of multiple parameters */ |
155 | # define EV_A loop |
161 | # define EV_A loop /* a loop as sole argument to a function call */ |
156 | # define EV_A_ EV_A, |
162 | # define EV_A_ EV_A, /* a loop as first of multiple arguments */ |
157 | # define EV_DEFAULT_UC ev_default_loop_uc () |
163 | # define EV_DEFAULT_UC ev_default_loop_uc () /* the default loop, if initialised, as sole arg */ |
158 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
164 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */ |
159 | # define EV_DEFAULT ev_default_loop (0) |
165 | # define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */ |
160 | # define EV_DEFAULT_ EV_DEFAULT, |
166 | # define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */ |
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167 | # define EV_PDEF EV_P EV_DEFARG (EV_DEFAULT_UC) /* EV_P, but with default argument in C++ */ |
161 | #else |
168 | #else |
162 | # define EV_P void |
169 | # define EV_P void |
163 | # define EV_P_ |
170 | # define EV_P_ |
164 | # define EV_A |
171 | # define EV_A |
165 | # define EV_A_ |
172 | # define EV_A_ |
166 | # define EV_DEFAULT |
173 | # define EV_DEFAULT |
167 | # define EV_DEFAULT_ |
174 | # define EV_DEFAULT_ |
168 | # define EV_DEFAULT_UC |
175 | # define EV_DEFAULT_UC |
169 | # define EV_DEFAULT_UC_ |
176 | # define EV_DEFAULT_UC_ |
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177 | # define EV_PDEF EV_P |
170 | # undef EV_EMBED_ENABLE |
178 | # undef EV_EMBED_ENABLE |
171 | #endif |
179 | #endif |
172 | |
180 | |
173 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
181 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
174 | # define EV_INLINE static inline |
182 | # define EV_INLINE static inline |
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192 | EV_READ = 0x01, /* ev_io detected read will not block */ |
200 | EV_READ = 0x01, /* ev_io detected read will not block */ |
193 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
201 | EV_WRITE = 0x02, /* ev_io detected write will not block */ |
194 | EV__IOFDSET = 0x80, /* internal use only */ |
202 | EV__IOFDSET = 0x80, /* internal use only */ |
195 | EV_IO = EV_READ, /* alias for type-detection */ |
203 | EV_IO = EV_READ, /* alias for type-detection */ |
196 | EV_TIMER = 0x00000100, /* timer timed out */ |
204 | EV_TIMER = 0x00000100, /* timer timed out */ |
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205 | #if EV_COMPAT3 |
197 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
206 | EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */ |
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207 | #endif |
198 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
208 | EV_PERIODIC = 0x00000200, /* periodic timer timed out */ |
199 | EV_SIGNAL = 0x00000400, /* signal was received */ |
209 | EV_SIGNAL = 0x00000400, /* signal was received */ |
200 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
210 | EV_CHILD = 0x00000800, /* child/pid had status change */ |
201 | EV_STAT = 0x00001000, /* stat data changed */ |
211 | EV_STAT = 0x00001000, /* stat data changed */ |
202 | EV_IDLE = 0x00002000, /* event loop is idling */ |
212 | EV_IDLE = 0x00002000, /* event loop is idling */ |
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511 | } |
521 | } |
512 | |
522 | |
513 | /* the default loop is the only one that handles signals and child watchers */ |
523 | /* the default loop is the only one that handles signals and child watchers */ |
514 | /* you can call this as often as you like */ |
524 | /* you can call this as often as you like */ |
515 | EV_INLINE struct ev_loop * |
525 | EV_INLINE struct ev_loop * |
516 | ev_default_loop (unsigned int flags) |
526 | ev_default_loop (unsigned int flags EV_DEFARG (0)) |
517 | { |
527 | { |
518 | struct ev_loop *loop = ev_default_loop_uc (); |
528 | struct ev_loop *loop = ev_default_loop_uc (); |
519 | |
529 | |
520 | if (!loop) |
530 | if (!loop) |
521 | { |
531 | { |
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526 | |
536 | |
527 | return loop; |
537 | return loop; |
528 | } |
538 | } |
529 | |
539 | |
530 | /* create and destroy alternative loops that don't handle signals */ |
540 | /* create and destroy alternative loops that don't handle signals */ |
531 | struct ev_loop *ev_loop_new (unsigned int flags); |
541 | struct ev_loop *ev_loop_new (unsigned int flags EV_DEFARG (0)); |
532 | void ev_loop_destroy (EV_P); |
542 | void ev_loop_destroy (EV_PDEF); |
533 | void ev_loop_fork (EV_P); |
543 | void ev_loop_fork (EV_PDEF); |
534 | |
544 | |
535 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
545 | ev_tstamp ev_now (EV_PDEF); /* time w.r.t. timers and the eventloop, updated after each poll */ |
536 | |
546 | |
537 | #else |
547 | #else |
538 | |
548 | |
539 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
549 | int ev_default_loop (unsigned int flags EV_DEFARG (0)); /* returns true when successful */ |
540 | |
550 | |
541 | EV_INLINE ev_tstamp |
551 | EV_INLINE ev_tstamp |
542 | ev_now (void) |
552 | ev_now (void) |
543 | { |
553 | { |
544 | extern ev_tstamp ev_rt_now; |
554 | extern ev_tstamp ev_rt_now; |
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546 | return ev_rt_now; |
556 | return ev_rt_now; |
547 | } |
557 | } |
548 | #endif /* multiplicity */ |
558 | #endif /* multiplicity */ |
549 | |
559 | |
550 | EV_INLINE int |
560 | EV_INLINE int |
551 | ev_is_default_loop (EV_P) |
561 | ev_is_default_loop (EV_PDEF) |
552 | { |
562 | { |
553 | #if EV_MULTIPLICITY |
563 | #if EV_MULTIPLICITY |
554 | extern struct ev_loop *ev_default_loop_ptr; |
564 | extern struct ev_loop *ev_default_loop_ptr; |
555 | |
565 | |
556 | return !!(EV_A == ev_default_loop_ptr); |
566 | return !!(EV_A == ev_default_loop_ptr); |
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564 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
574 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
565 | /* you can call it in either the parent or the child */ |
575 | /* you can call it in either the parent or the child */ |
566 | /* you can actually call it at any time, anywhere :) */ |
576 | /* you can actually call it at any time, anywhere :) */ |
567 | void ev_default_fork (void); |
577 | void ev_default_fork (void); |
568 | |
578 | |
569 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
579 | unsigned int ev_backend (EV_PDEF); /* backend in use by loop */ |
570 | |
580 | |
571 | void ev_now_update (EV_P); /* update event loop time */ |
581 | void ev_now_update (EV_PDEF); /* update event loop time */ |
572 | |
582 | |
573 | #if EV_WALK_ENABLE |
583 | #if EV_WALK_ENABLE |
574 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
584 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
575 | /* callback on every such watcher. The callback might stop the watcher, */ |
585 | /* callback on every such watcher. The callback might stop the watcher, */ |
576 | /* but do nothing else with the loop */ |
586 | /* but do nothing else with the loop */ |
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591 | EVBREAK_ONE = 1, /* unloop once */ |
601 | EVBREAK_ONE = 1, /* unloop once */ |
592 | EVBREAK_ALL = 2 /* unloop all loops */ |
602 | EVBREAK_ALL = 2 /* unloop all loops */ |
593 | }; |
603 | }; |
594 | |
604 | |
595 | #if EV_PROTOTYPES |
605 | #if EV_PROTOTYPES |
596 | void ev_run (EV_P_ int flags); |
606 | void ev_run (EV_P_ int flags EV_DEFARG (0)); |
597 | void ev_break (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
607 | void ev_break (EV_P_ int how EV_DEFARG (EVBREAK_ONE)); /* break out of the loop */ |
598 | |
608 | |
599 | /* |
609 | /* |
600 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
610 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
601 | * keeps one reference. if you have a long-running watcher you never unregister that |
611 | * keeps one reference. if you have a long-running watcher you never unregister that |
602 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
612 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
603 | */ |
613 | */ |
604 | void ev_ref (EV_P); |
614 | void ev_ref (EV_PDEF); |
605 | void ev_unref (EV_P); |
615 | void ev_unref (EV_PDEF); |
606 | |
616 | |
607 | /* |
617 | /* |
608 | * convenience function, wait for a single event, without registering an event watcher |
618 | * convenience function, wait for a single event, without registering an event watcher |
609 | * if timeout is < 0, do wait indefinitely |
619 | * if timeout is < 0, do wait indefinitely |
610 | */ |
620 | */ |
611 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
621 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
612 | |
622 | |
613 | # if EV_FEATURE_API |
623 | # if EV_FEATURE_API |
614 | unsigned int ev_iteration (EV_P); /* number of loop iterations */ |
624 | unsigned int ev_iteration (EV_PDEF); /* number of loop iterations */ |
615 | unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
625 | unsigned int ev_depth (EV_PDEF); /* #ev_loop enters - #ev_loop leaves */ |
616 | void ev_verify (EV_P); /* abort if loop data corrupted */ |
626 | void ev_verify (EV_PDEF); /* abort if loop data corrupted */ |
617 | |
627 | |
618 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
628 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
619 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
629 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
620 | |
630 | |
621 | /* advanced stuff for threading etc. support, see docs */ |
631 | /* advanced stuff for threading etc. support, see docs */ |
622 | void ev_set_userdata (EV_P_ void *data); |
632 | void ev_set_userdata (EV_P_ void *data); |
623 | void *ev_userdata (EV_P); |
633 | void *ev_userdata (EV_PDEF); |
624 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
634 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
625 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
635 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
626 | |
636 | |
627 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
637 | unsigned int ev_pending_count (EV_PDEF); /* number of pending events, if any */ |
628 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
638 | void ev_invoke_pending (EV_PDEF); /* invoke all pending watchers */ |
629 | |
639 | |
630 | /* |
640 | /* |
631 | * stop/start the timer handling. |
641 | * stop/start the timer handling. |
632 | */ |
642 | */ |
633 | void ev_suspend (EV_P); |
643 | void ev_suspend (EV_PDEF); |
634 | void ev_resume (EV_P); |
644 | void ev_resume (EV_PDEF); |
635 | #endif |
645 | #endif |
636 | |
646 | |
637 | #endif |
647 | #endif |
638 | |
648 | |
639 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
649 | /* these may evaluate ev multiple times, and the other arguments at most once */ |