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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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131 | /* eventmask, revents, events... */ |
135 | /* eventmask, revents, events... */ |
132 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
136 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
133 | #define EV_NONE 0x00 /* no events */ |
137 | #define EV_NONE 0x00 /* no events */ |
134 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
138 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
135 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
139 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
136 | #define EV_IOFDSET 0x80 /* internal use only */ |
140 | #define EV__IOFDSET 0x80 /* internal use only */ |
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141 | #define EV_IO EV_READ /* alias for type-detection */ |
137 | #define EV_TIMEOUT 0x00000100 /* timer timed out */ |
142 | #define EV_TIMEOUT 0x00000100 /* timer timed out */ |
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143 | #define EV_TIMER EV_TIMEOUT /* alias for type-detection */ |
138 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
144 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
139 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
145 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
140 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
146 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
141 | #define EV_STAT 0x00001000 /* stat data changed */ |
147 | #define EV_STAT 0x00001000 /* stat data changed */ |
142 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
148 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
143 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
149 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
144 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
150 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
145 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
151 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
146 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
152 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
147 | #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 */ |
148 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
155 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
149 | |
156 | |
150 | /* 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 */ |
151 | #ifndef EV_COMMON |
158 | #ifndef EV_COMMON |
152 | # define EV_COMMON void *data; |
159 | # define EV_COMMON void *data; |
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154 | #ifndef EV_PROTOTYPES |
161 | #ifndef EV_PROTOTYPES |
155 | # define EV_PROTOTYPES 1 |
162 | # define EV_PROTOTYPES 1 |
156 | #endif |
163 | #endif |
157 | |
164 | |
158 | #define EV_VERSION_MAJOR 3 |
165 | #define EV_VERSION_MAJOR 3 |
159 | #define EV_VERSION_MINOR 0 |
166 | #define EV_VERSION_MINOR 7 |
160 | |
167 | |
161 | #ifndef EV_CB_DECLARE |
168 | #ifndef EV_CB_DECLARE |
162 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
169 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
163 | #endif |
170 | #endif |
164 | #ifndef EV_CB_INVOKE |
171 | #ifndef EV_CB_INVOKE |
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180 | * or simply 1 for watchers that aren't in some array. |
187 | * or simply 1 for watchers that aren't in some array. |
181 | * pending is either 0, in which case the watcher isn't, |
188 | * pending is either 0, in which case the watcher isn't, |
182 | * or the array index + 1 in the pendings array. |
189 | * or the array index + 1 in the pendings array. |
183 | */ |
190 | */ |
184 | |
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 | |
185 | /* shared by all watchers */ |
198 | /* shared by all watchers */ |
186 | #define EV_WATCHER(type) \ |
199 | #define EV_WATCHER(type) \ |
187 | int active; /* private */ \ |
200 | int active; /* private */ \ |
188 | int pending; /* private */ \ |
201 | int pending; /* private */ \ |
189 | int priority; /* private */ \ |
202 | EV_DECL_PRIORITY /* private */ \ |
190 | EV_COMMON /* rw */ \ |
203 | EV_COMMON /* rw */ \ |
191 | EV_CB_DECLARE (type) /* private */ |
204 | EV_CB_DECLARE (type) /* private */ |
192 | |
205 | |
193 | #define EV_WATCHER_LIST(type) \ |
206 | #define EV_WATCHER_LIST(type) \ |
194 | EV_WATCHER (type) \ |
207 | EV_WATCHER (type) \ |
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452 | |
465 | |
453 | /* create and destroy alternative loops that don't handle signals */ |
466 | /* create and destroy alternative loops that don't handle signals */ |
454 | struct ev_loop *ev_loop_new (unsigned int flags); |
467 | struct ev_loop *ev_loop_new (unsigned int flags); |
455 | void ev_loop_destroy (EV_P); |
468 | void ev_loop_destroy (EV_P); |
456 | void ev_loop_fork (EV_P); |
469 | void ev_loop_fork (EV_P); |
457 | void ev_loop_verify (EV_P); |
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458 | |
470 | |
459 | 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 */ |
460 | void ev_now_update (EV_P); |
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461 | |
472 | |
462 | #else |
473 | #else |
463 | |
474 | |
464 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
475 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
465 | |
476 | |
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489 | /* 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 */ |
490 | /* you can call it in either the parent or the child */ |
501 | /* you can call it in either the parent or the child */ |
491 | /* you can actually call it at any time, anywhere :) */ |
502 | /* you can actually call it at any time, anywhere :) */ |
492 | void ev_default_fork (void); |
503 | void ev_default_fork (void); |
493 | |
504 | |
494 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
505 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
495 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
506 | |
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507 | void ev_now_update (EV_P); /* update event loop time */ |
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508 | |
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509 | #if EV_WALK_ENABLE |
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510 | /* walk (almost) all watchers in the loop of a given type, invoking the */ |
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511 | /* callback on every such watcher. The callback might stop the watcher, */ |
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512 | /* but do nothing else with the loop */ |
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513 | void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); |
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514 | #endif |
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515 | |
496 | #endif /* prototypes */ |
516 | #endif /* prototypes */ |
497 | |
517 | |
498 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
518 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
499 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
519 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
500 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
520 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
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503 | |
523 | |
504 | #if EV_PROTOTYPES |
524 | #if EV_PROTOTYPES |
505 | void ev_loop (EV_P_ int flags); |
525 | void ev_loop (EV_P_ int flags); |
506 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
526 | void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ |
507 | |
527 | |
508 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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509 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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510 | |
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511 | /* |
528 | /* |
512 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
529 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
513 | * keeps one reference. if you have a long-runing watcher you never unregister that |
530 | * keeps one reference. if you have a long-running watcher you never unregister that |
514 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
531 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
515 | */ |
532 | */ |
516 | void ev_ref (EV_P); |
533 | void ev_ref (EV_P); |
517 | void ev_unref (EV_P); |
534 | void ev_unref (EV_P); |
518 | |
535 | |
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536 | /* |
519 | /* convenience function, wait for a single event, without registering an event watcher */ |
537 | * convenience function, wait for a single event, without registering an event watcher |
520 | /* if timeout is < 0, do wait indefinitely */ |
538 | * if timeout is < 0, do wait indefinitely |
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539 | */ |
521 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
540 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
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541 | |
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542 | # if EV_MINIMAL < 2 |
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543 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
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544 | unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */ |
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545 | void ev_loop_verify (EV_P); /* abort if loop data corrupted */ |
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546 | |
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547 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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548 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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549 | |
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550 | /* advanced stuff for threading etc. support, see docs */ |
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551 | void ev_set_userdata (EV_P_ void *data); |
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552 | void *ev_userdata (EV_P); |
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553 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)); |
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554 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)); |
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555 | |
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556 | unsigned int ev_pending_count (EV_P); /* number of pending events, if any */ |
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557 | void ev_invoke_pending (EV_P); /* invoke all pending watchers */ |
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558 | |
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559 | /* |
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560 | * stop/start the timer handling. |
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561 | */ |
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562 | void ev_suspend (EV_P); |
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563 | void ev_resume (EV_P); |
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564 | #endif |
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565 | |
522 | #endif |
566 | #endif |
523 | |
567 | |
524 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
568 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
525 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
569 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
526 | #define ev_init(ev,cb_) do { \ |
570 | #define ev_init(ev,cb_) do { \ |
527 | ((ev_watcher *)(void *)(ev))->active = \ |
571 | ((ev_watcher *)(void *)(ev))->active = \ |
528 | ((ev_watcher *)(void *)(ev))->pending = \ |
572 | ((ev_watcher *)(void *)(ev))->pending = 0; \ |
529 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
573 | ev_set_priority ((ev), 0); \ |
530 | ev_set_cb ((ev), cb_); \ |
574 | ev_set_cb ((ev), cb_); \ |
531 | } while (0) |
575 | } while (0) |
532 | |
576 | |
533 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
577 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) |
534 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
578 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
535 | #define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) |
579 | #define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0) |
536 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
580 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
537 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
581 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
538 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
582 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
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557 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
601 | #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) |
558 | |
602 | |
559 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
603 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
560 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
604 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
561 | |
605 | |
562 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
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563 | #define ev_cb(ev) (ev)->cb /* rw */ |
606 | #define ev_cb(ev) (ev)->cb /* rw */ |
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607 | |
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608 | #if EV_MINPRI == EV_MAXPRI |
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609 | # define ev_priority(ev) ((ev), EV_MINPRI) |
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610 | # define ev_set_priority(ev,pri) ((ev), (pri)) |
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611 | #else |
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612 | # define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
564 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
613 | # define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri) |
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614 | #endif |
565 | |
615 | |
566 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
616 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
567 | |
617 | |
568 | #ifndef ev_set_cb |
618 | #ifndef ev_set_cb |
569 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
619 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |