… | |
… | |
88 | #endif |
88 | #endif |
89 | |
89 | |
90 | /*****************************************************************************/ |
90 | /*****************************************************************************/ |
91 | |
91 | |
92 | #if EV_STAT_ENABLE |
92 | #if EV_STAT_ENABLE |
|
|
93 | # ifdef _WIN32 |
|
|
94 | # include <time.h> |
|
|
95 | # include <sys/types.h> |
|
|
96 | # endif |
93 | # include <sys/stat.h> |
97 | # include <sys/stat.h> |
94 | #endif |
98 | #endif |
95 | |
99 | |
96 | /* support multiple event loops? */ |
100 | /* support multiple event loops? */ |
97 | #if EV_MULTIPLICITY |
101 | #if EV_MULTIPLICITY |
… | |
… | |
123 | #endif |
127 | #endif |
124 | |
128 | |
125 | /*****************************************************************************/ |
129 | /*****************************************************************************/ |
126 | |
130 | |
127 | /* eventmask, revents, events... */ |
131 | /* eventmask, revents, events... */ |
128 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
132 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
129 | #define EV_NONE 0x00L /* no events */ |
133 | #define EV_NONE 0x00 /* no events */ |
130 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
134 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
131 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
135 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
132 | #define EV_IOFDSET 0x80L /* internal use only */ |
136 | #define EV_IOFDSET 0x80 /* internal use only */ |
133 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
137 | #define EV_TIMEOUT 0x00000100 /* timer timed out */ |
134 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
138 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
135 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
139 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
136 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
140 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
137 | #define EV_STAT 0x00001000L /* stat data changed */ |
141 | #define EV_STAT 0x00001000 /* stat data changed */ |
138 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
142 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
139 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
143 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
140 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
144 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
141 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
145 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
142 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
146 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
143 | #define EV_ASYNC 0x00040000L /* async intra-loop signal */ |
147 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
144 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
148 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
145 | |
149 | |
146 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
150 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
147 | #ifndef EV_COMMON |
151 | #ifndef EV_COMMON |
148 | # define EV_COMMON void *data; |
152 | # define EV_COMMON void *data; |
149 | #endif |
153 | #endif |
… | |
… | |
164 | /* |
168 | /* |
165 | * struct member types: |
169 | * struct member types: |
166 | * private: you can look at them, but not change them, and they might not mean anything to you. |
170 | * 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 |
171 | * 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 |
172 | * rw: can be read and modified anytime, even when the watcher is active |
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|
173 | * |
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|
174 | * some internal details that might be helpful for debugging: |
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|
175 | * |
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|
176 | * active is either 0, which means the watcher is not active, |
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|
177 | * or the array index of the watcher (periodics, timers) |
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|
178 | * or the array index + 1 (most other watchers) |
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|
179 | * or simply 1 for watchers that aren't in some array. |
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|
180 | * pending is either 0, in which case the watcher isn't, |
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|
181 | * or the array index + 1 in the pendings array. |
169 | */ |
182 | */ |
170 | |
183 | |
171 | /* shared by all watchers */ |
184 | /* shared by all watchers */ |
172 | #define EV_WATCHER(type) \ |
185 | #define EV_WATCHER(type) \ |
173 | int active; /* private */ \ |
186 | int active; /* private */ \ |
… | |
… | |
322 | ev_prepare prepare; /* private */ |
335 | ev_prepare prepare; /* private */ |
323 | ev_check check; /* unused */ |
336 | ev_check check; /* unused */ |
324 | ev_timer timer; /* unused */ |
337 | ev_timer timer; /* unused */ |
325 | ev_periodic periodic; /* unused */ |
338 | ev_periodic periodic; /* unused */ |
326 | ev_idle idle; /* unused */ |
339 | ev_idle idle; /* unused */ |
327 | ev_fork fork; /* unused */ |
340 | ev_fork fork; /* private */ |
328 | } ev_embed; |
341 | } ev_embed; |
329 | #endif |
342 | #endif |
330 | |
343 | |
331 | #if EV_ASYNC_ENABLE |
344 | #if EV_ASYNC_ENABLE |
332 | /* invoked when somebody calls ev_async_send on the watcher */ |
345 | /* invoked when somebody calls ev_async_send on the watcher */ |
… | |
… | |
336 | EV_WATCHER (ev_async) |
349 | EV_WATCHER (ev_async) |
337 | |
350 | |
338 | EV_ATOMIC_T sent; /* private */ |
351 | EV_ATOMIC_T sent; /* private */ |
339 | } ev_async; |
352 | } ev_async; |
340 | |
353 | |
341 | # define ev_async_pending(w) (((w)->sent + 0) |
354 | # define ev_async_pending(w) ((w)->sent + 0) |
342 | #endif |
355 | #endif |
343 | |
356 | |
344 | /* the presence of this union forces similar struct layout */ |
357 | /* the presence of this union forces similar struct layout */ |
345 | union ev_any_watcher |
358 | union ev_any_watcher |
346 | { |
359 | { |
… | |
… | |
364 | struct ev_fork fork; |
377 | struct ev_fork fork; |
365 | #endif |
378 | #endif |
366 | #if EV_EMBED_ENABLE |
379 | #if EV_EMBED_ENABLE |
367 | struct ev_embed embed; |
380 | struct ev_embed embed; |
368 | #endif |
381 | #endif |
369 | #if EV_ASYND_ENABLE |
382 | #if EV_ASYNC_ENABLE |
370 | struct ev_async async; |
383 | struct ev_async async; |
371 | #endif |
384 | #endif |
372 | }; |
385 | }; |
373 | |
386 | |
374 | /* bits for ev_default_loop and ev_loop_new */ |
387 | /* bits for ev_default_loop and ev_loop_new */ |
375 | /* the default */ |
388 | /* the default */ |
376 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
389 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
377 | /* flag bits */ |
390 | /* flag bits */ |
378 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
391 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
379 | #define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
392 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
380 | /* method bits to be ored together */ |
393 | /* method bits to be ored together */ |
381 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
394 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
382 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
395 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
383 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
396 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
384 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
397 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
385 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
398 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
386 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
399 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
387 | |
400 | |
388 | #if EV_PROTOTYPES |
401 | #if EV_PROTOTYPES |
389 | int ev_version_major (void); |
402 | int ev_version_major (void); |
390 | int ev_version_minor (void); |
403 | int ev_version_minor (void); |
391 | |
404 | |
… | |
… | |
408 | * retryable syscall error |
421 | * retryable syscall error |
409 | * (such as failed select, poll, epoll_wait) |
422 | * (such as failed select, poll, epoll_wait) |
410 | */ |
423 | */ |
411 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
424 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
412 | |
425 | |
413 | # if EV_MULTIPLICITY |
426 | #if EV_MULTIPLICITY |
414 | EV_INLINE struct ev_loop * |
427 | EV_INLINE struct ev_loop * |
415 | ev_default_loop_uc (void) |
428 | ev_default_loop_uc (void) |
416 | { |
429 | { |
417 | extern struct ev_loop *ev_default_loop_ptr; |
430 | extern struct ev_loop *ev_default_loop_ptr; |
418 | |
431 | |
… | |
… | |
438 | |
451 | |
439 | /* create and destroy alternative loops that don't handle signals */ |
452 | /* create and destroy alternative loops that don't handle signals */ |
440 | struct ev_loop *ev_loop_new (unsigned int flags); |
453 | struct ev_loop *ev_loop_new (unsigned int flags); |
441 | void ev_loop_destroy (EV_P); |
454 | void ev_loop_destroy (EV_P); |
442 | void ev_loop_fork (EV_P); |
455 | void ev_loop_fork (EV_P); |
|
|
456 | void ev_loop_verify (EV_P); |
443 | |
457 | |
444 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
458 | ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ |
|
|
459 | void ev_now_update (EV_P); |
445 | |
460 | |
446 | # else |
461 | #else |
447 | |
462 | |
448 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
463 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
449 | |
464 | |
450 | EV_INLINE ev_tstamp |
465 | EV_INLINE ev_tstamp |
451 | ev_now (void) |
466 | ev_now (void) |
452 | { |
467 | { |
453 | extern ev_tstamp ev_rt_now; |
468 | extern ev_tstamp ev_rt_now; |
454 | |
469 | |
455 | return ev_rt_now; |
470 | return ev_rt_now; |
456 | } |
471 | } |
457 | # endif |
472 | #endif /* multiplicity */ |
458 | |
473 | |
459 | EV_INLINE int |
474 | EV_INLINE int |
460 | ev_is_default_loop (EV_P) |
475 | ev_is_default_loop (EV_P) |
461 | { |
476 | { |
462 | #if EV_MULTIPLICITY |
477 | #if EV_MULTIPLICITY |
… | |
… | |
475 | /* you can actually call it at any time, anywhere :) */ |
490 | /* you can actually call it at any time, anywhere :) */ |
476 | void ev_default_fork (void); |
491 | void ev_default_fork (void); |
477 | |
492 | |
478 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
493 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
479 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
494 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
480 | #endif |
495 | #endif /* prototypes */ |
481 | |
496 | |
482 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
497 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
483 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
498 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
484 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
499 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
485 | #define EVUNLOOP_ONE 1 /* unloop once */ |
500 | #define EVUNLOOP_ONE 1 /* unloop once */ |
… | |
… | |
498 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
513 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
499 | */ |
514 | */ |
500 | void ev_ref (EV_P); |
515 | void ev_ref (EV_P); |
501 | void ev_unref (EV_P); |
516 | void ev_unref (EV_P); |
502 | |
517 | |
503 | /* convinience function, wait for a single event, without registering an event watcher */ |
518 | /* convenience function, wait for a single event, without registering an event watcher */ |
504 | /* if timeout is < 0, do wait indefinitely */ |
519 | /* if timeout is < 0, do wait indefinitely */ |
505 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
520 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
506 | #endif |
521 | #endif |
507 | |
522 | |
508 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
523 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
… | |
… | |
513 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
528 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
514 | ev_set_cb ((ev), cb_); \ |
529 | ev_set_cb ((ev), cb_); \ |
515 | } while (0) |
530 | } while (0) |
516 | |
531 | |
517 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
532 | #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) |
533 | #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) |
534 | #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) |
535 | #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) |
536 | #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) |
537 | #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 */ |
538 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
… | |
… | |
545 | |
560 | |
546 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
561 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
547 | #define ev_cb(ev) (ev)->cb /* rw */ |
562 | #define ev_cb(ev) (ev)->cb /* rw */ |
548 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
563 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
549 | |
564 | |
|
|
565 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
|
|
566 | |
550 | #ifndef ev_set_cb |
567 | #ifndef ev_set_cb |
551 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
568 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
552 | #endif |
569 | #endif |
553 | |
570 | |
554 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
571 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |