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98 | struct ev_loop; |
98 | struct ev_loop; |
99 | # define EV_P struct ev_loop *loop |
99 | # define EV_P struct ev_loop *loop |
100 | # define EV_P_ EV_P, |
100 | # define EV_P_ EV_P, |
101 | # define EV_A loop |
101 | # define EV_A loop |
102 | # define EV_A_ EV_A, |
102 | # define EV_A_ EV_A, |
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103 | # define EV_DEFAULT_UC ev_default_loop_uc () |
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104 | # define EV_DEFAULT_UC_ EV_DEFAULT_UC, |
103 | # define EV_DEFAULT ev_default_loop (0) |
105 | # define EV_DEFAULT ev_default_loop (0) |
104 | # define EV_DEFAULT_ EV_DEFAULT, |
106 | # define EV_DEFAULT_ EV_DEFAULT, |
105 | #else |
107 | #else |
106 | # define EV_P void |
108 | # define EV_P void |
107 | # define EV_P_ |
109 | # define EV_P_ |
108 | # define EV_A |
110 | # define EV_A |
109 | # define EV_A_ |
111 | # define EV_A_ |
110 | # define EV_DEFAULT |
112 | # define EV_DEFAULT |
111 | # define EV_DEFAULT_ |
113 | # define EV_DEFAULT_ |
112 | |
114 | # define EV_DEFAULT_UC |
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115 | # define EV_DEFAULT_UC_ |
113 | # undef EV_EMBED_ENABLE |
116 | # undef EV_EMBED_ENABLE |
114 | #endif |
117 | #endif |
115 | |
118 | |
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119 | #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3 |
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120 | # define EV_INLINE static inline |
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121 | #else |
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122 | # define EV_INLINE static |
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123 | #endif |
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124 | |
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125 | /*****************************************************************************/ |
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126 | |
116 | /* eventmask, revents, events... */ |
127 | /* eventmask, revents, events... */ |
117 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
128 | #define EV_UNDEF -1 /* guaranteed to be invalid */ |
118 | #define EV_NONE 0x00L /* no events */ |
129 | #define EV_NONE 0x00 /* no events */ |
119 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
130 | #define EV_READ 0x01 /* ev_io detected read will not block */ |
120 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
131 | #define EV_WRITE 0x02 /* ev_io detected write will not block */ |
121 | #define EV_IOFDSET 0x80L /* internal use only */ |
132 | #define EV_IOFDSET 0x80 /* internal use only */ |
122 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
133 | #define EV_TIMEOUT 0x00000100 /* timer timed out */ |
123 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
134 | #define EV_PERIODIC 0x00000200 /* periodic timer timed out */ |
124 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
135 | #define EV_SIGNAL 0x00000400 /* signal was received */ |
125 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
136 | #define EV_CHILD 0x00000800 /* child/pid had status change */ |
126 | #define EV_STAT 0x00001000L /* stat data changed */ |
137 | #define EV_STAT 0x00001000 /* stat data changed */ |
127 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
138 | #define EV_IDLE 0x00002000 /* event loop is idling */ |
128 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
139 | #define EV_PREPARE 0x00004000 /* event loop about to poll */ |
129 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
140 | #define EV_CHECK 0x00008000 /* event loop finished poll */ |
130 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
141 | #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
131 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
142 | #define EV_FORK 0x00020000 /* event loop resumed in child */ |
132 | #define EV_ASYNC 0x00040000L /* async intra-loop signal */ |
143 | #define EV_ASYNC 0x00040000 /* async intra-loop signal */ |
133 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
144 | #define EV_ERROR 0x80000000 /* sent when an error occurs */ |
134 | |
145 | |
135 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
146 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
136 | #ifndef EV_COMMON |
147 | #ifndef EV_COMMON |
137 | # define EV_COMMON void *data; |
148 | # define EV_COMMON void *data; |
138 | #endif |
149 | #endif |
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153 | /* |
164 | /* |
154 | * struct member types: |
165 | * struct member types: |
155 | * 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. |
156 | * 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 |
157 | * 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. |
158 | */ |
178 | */ |
159 | |
179 | |
160 | /* shared by all watchers */ |
180 | /* shared by all watchers */ |
161 | #define EV_WATCHER(type) \ |
181 | #define EV_WATCHER(type) \ |
162 | int active; /* private */ \ |
182 | int active; /* private */ \ |
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324 | { |
344 | { |
325 | EV_WATCHER (ev_async) |
345 | EV_WATCHER (ev_async) |
326 | |
346 | |
327 | EV_ATOMIC_T sent; /* private */ |
347 | EV_ATOMIC_T sent; /* private */ |
328 | } ev_async; |
348 | } ev_async; |
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349 | |
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350 | # define ev_async_pending(w) ((w)->sent + 0) |
329 | #endif |
351 | #endif |
330 | |
352 | |
331 | /* the presence of this union forces similar struct layout */ |
353 | /* the presence of this union forces similar struct layout */ |
332 | union ev_any_watcher |
354 | union ev_any_watcher |
333 | { |
355 | { |
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351 | struct ev_fork fork; |
373 | struct ev_fork fork; |
352 | #endif |
374 | #endif |
353 | #if EV_EMBED_ENABLE |
375 | #if EV_EMBED_ENABLE |
354 | struct ev_embed embed; |
376 | struct ev_embed embed; |
355 | #endif |
377 | #endif |
356 | #if EV_ASYND_ENABLE |
378 | #if EV_ASYNC_ENABLE |
357 | struct ev_async async; |
379 | struct ev_async async; |
358 | #endif |
380 | #endif |
359 | }; |
381 | }; |
360 | |
382 | |
361 | /* bits for ev_default_loop and ev_loop_new */ |
383 | /* bits for ev_default_loop and ev_loop_new */ |
362 | /* the default */ |
384 | /* the default */ |
363 | #define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ |
385 | #define EVFLAG_AUTO 0x00000000U /* not quite a mask */ |
364 | /* flag bits */ |
386 | /* flag bits */ |
365 | #define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ |
387 | #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */ |
366 | #define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ |
388 | #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */ |
367 | /* method bits to be ored together */ |
389 | /* method bits to be ored together */ |
368 | #define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ |
390 | #define EVBACKEND_SELECT 0x00000001U /* about anywhere */ |
369 | #define EVBACKEND_POLL 0x00000002UL /* !win */ |
391 | #define EVBACKEND_POLL 0x00000002U /* !win */ |
370 | #define EVBACKEND_EPOLL 0x00000004UL /* linux */ |
392 | #define EVBACKEND_EPOLL 0x00000004U /* linux */ |
371 | #define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ |
393 | #define EVBACKEND_KQUEUE 0x00000008U /* bsd */ |
372 | #define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ |
394 | #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */ |
373 | #define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ |
395 | #define EVBACKEND_PORT 0x00000020U /* solaris 10 */ |
374 | |
396 | |
375 | #if EV_PROTOTYPES |
397 | #if EV_PROTOTYPES |
376 | int ev_version_major (void); |
398 | int ev_version_major (void); |
377 | int ev_version_minor (void); |
399 | int ev_version_minor (void); |
378 | |
400 | |
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396 | * (such as failed select, poll, epoll_wait) |
418 | * (such as failed select, poll, epoll_wait) |
397 | */ |
419 | */ |
398 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
420 | void ev_set_syserr_cb (void (*cb)(const char *msg)); |
399 | |
421 | |
400 | # if EV_MULTIPLICITY |
422 | # if EV_MULTIPLICITY |
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423 | EV_INLINE struct ev_loop * |
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424 | ev_default_loop_uc (void) |
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425 | { |
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426 | extern struct ev_loop *ev_default_loop_ptr; |
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427 | |
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428 | return ev_default_loop_ptr; |
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429 | } |
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430 | |
401 | /* the default loop is the only one that handles signals and child watchers */ |
431 | /* the default loop is the only one that handles signals and child watchers */ |
402 | /* you can call this as often as you like */ |
432 | /* you can call this as often as you like */ |
403 | static struct ev_loop * |
433 | EV_INLINE struct ev_loop * |
404 | ev_default_loop (unsigned int flags) |
434 | ev_default_loop (unsigned int flags) |
405 | { |
435 | { |
406 | extern struct ev_loop *ev_default_loop_ptr; |
436 | struct ev_loop *loop = ev_default_loop_uc (); |
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437 | |
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438 | if (!loop) |
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439 | { |
407 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
440 | extern struct ev_loop *ev_default_loop_init (unsigned int flags); |
408 | |
441 | |
409 | if (!ev_default_loop_ptr) |
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410 | ev_default_loop_init (flags); |
442 | loop = ev_default_loop_init (flags); |
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443 | } |
411 | |
444 | |
412 | return ev_default_loop_ptr; |
445 | return loop; |
413 | } |
446 | } |
414 | |
447 | |
415 | /* create and destroy alternative loops that don't handle signals */ |
448 | /* create and destroy alternative loops that don't handle signals */ |
416 | struct ev_loop *ev_loop_new (unsigned int flags); |
449 | struct ev_loop *ev_loop_new (unsigned int flags); |
417 | void ev_loop_destroy (EV_P); |
450 | void ev_loop_destroy (EV_P); |
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421 | |
454 | |
422 | # else |
455 | # else |
423 | |
456 | |
424 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
457 | int ev_default_loop (unsigned int flags); /* returns true when successful */ |
425 | |
458 | |
426 | static ev_tstamp |
459 | EV_INLINE ev_tstamp |
427 | ev_now (void) |
460 | ev_now (void) |
428 | { |
461 | { |
429 | extern ev_tstamp ev_rt_now; |
462 | extern ev_tstamp ev_rt_now; |
430 | |
463 | |
431 | return ev_rt_now; |
464 | return ev_rt_now; |
432 | } |
465 | } |
433 | # endif |
466 | # endif |
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467 | |
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468 | EV_INLINE int |
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469 | ev_is_default_loop (EV_P) |
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470 | { |
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471 | #if EV_MULTIPLICITY |
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472 | extern struct ev_loop *ev_default_loop_ptr; |
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473 | |
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474 | return !!(EV_A == ev_default_loop_ptr); |
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475 | #else |
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476 | return 1; |
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477 | #endif |
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478 | } |
434 | |
479 | |
435 | void ev_default_destroy (void); /* destroy the default loop */ |
480 | void ev_default_destroy (void); /* destroy the default loop */ |
436 | /* this needs to be called after fork, to duplicate the default loop */ |
481 | /* this needs to be called after fork, to duplicate the default loop */ |
437 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
482 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
438 | /* you can call it in either the parent or the child */ |
483 | /* you can call it in either the parent or the child */ |
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477 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
522 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
478 | ev_set_cb ((ev), cb_); \ |
523 | ev_set_cb ((ev), cb_); \ |
479 | } while (0) |
524 | } while (0) |
480 | |
525 | |
481 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
526 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
482 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
527 | #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) |
483 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
528 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
484 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
529 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
485 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
530 | #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) |
486 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
531 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
487 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
532 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
488 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
533 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
489 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
534 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
490 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
535 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
491 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
536 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
492 | #define ev_async_set(ev) do { (ev)->gotasync = 0; } while (0) |
537 | #define ev_async_set(ev) do { (ev)->sent = 0; } while (0) |
493 | |
538 | |
494 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
539 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
495 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
540 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
496 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
541 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
497 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
542 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
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509 | |
554 | |
510 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
555 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
511 | #define ev_cb(ev) (ev)->cb /* rw */ |
556 | #define ev_cb(ev) (ev)->cb /* rw */ |
512 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
557 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
513 | |
558 | |
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559 | #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) |
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560 | |
514 | #ifndef ev_set_cb |
561 | #ifndef ev_set_cb |
515 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
562 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
516 | #endif |
563 | #endif |
517 | |
564 | |
518 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |
565 | /* stopping (enabling, adding) a watcher does nothing if it is already running */ |