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54 | |
54 | |
55 | #ifndef EV_STAT_ENABLE |
55 | #ifndef EV_STAT_ENABLE |
56 | # define EV_STAT_ENABLE 1 |
56 | # define EV_STAT_ENABLE 1 |
57 | #endif |
57 | #endif |
58 | |
58 | |
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59 | #ifndef EV_IDLE_ENABLE |
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60 | # define EV_IDLE_ENABLE 1 |
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61 | #endif |
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62 | |
59 | #ifndef EV_FORK_ENABLE |
63 | #ifndef EV_FORK_ENABLE |
60 | # define EV_FORK_ENABLE 1 |
64 | # define EV_FORK_ENABLE 1 |
61 | #endif |
65 | #endif |
62 | |
66 | |
63 | #ifndef EV_EMBED_ENABLE |
67 | #ifndef EV_EMBED_ENABLE |
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93 | /* eventmask, revents, events... */ |
97 | /* eventmask, revents, events... */ |
94 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
98 | #define EV_UNDEF -1L /* guaranteed to be invalid */ |
95 | #define EV_NONE 0x00L /* no events */ |
99 | #define EV_NONE 0x00L /* no events */ |
96 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
100 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
97 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
101 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
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102 | #define EV_IOFDSET 0x80L /* internal use only */ |
98 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
103 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
99 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
104 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
100 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
105 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
101 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
106 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
102 | #define EV_STAT 0x00001000L /* stat data changed */ |
107 | #define EV_STAT 0x00001000L /* stat data changed */ |
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113 | #endif |
118 | #endif |
114 | #ifndef EV_PROTOTYPES |
119 | #ifndef EV_PROTOTYPES |
115 | # define EV_PROTOTYPES 1 |
120 | # define EV_PROTOTYPES 1 |
116 | #endif |
121 | #endif |
117 | |
122 | |
118 | #define EV_VERSION_MAJOR 1 |
123 | #define EV_VERSION_MAJOR 2 |
119 | #define EV_VERSION_MINOR 1 |
124 | #define EV_VERSION_MINOR 0 |
120 | |
125 | |
121 | #ifndef EV_CB_DECLARE |
126 | #ifndef EV_CB_DECLARE |
122 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
127 | # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); |
123 | #endif |
128 | #endif |
124 | #ifndef EV_CB_INVOKE |
129 | #ifndef EV_CB_INVOKE |
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189 | /* revent EV_PERIODIC */ |
194 | /* revent EV_PERIODIC */ |
190 | typedef struct ev_periodic |
195 | typedef struct ev_periodic |
191 | { |
196 | { |
192 | EV_WATCHER_TIME (ev_periodic) |
197 | EV_WATCHER_TIME (ev_periodic) |
193 | |
198 | |
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199 | ev_tstamp offset; /* rw */ |
194 | ev_tstamp interval; /* rw */ |
200 | ev_tstamp interval; /* rw */ |
195 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
201 | ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ |
196 | } ev_periodic; |
202 | } ev_periodic; |
197 | |
203 | |
198 | /* invoked when the given signal has been received */ |
204 | /* invoked when the given signal has been received */ |
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238 | |
244 | |
239 | int wd; /* wd for inotify, fd for kqueue */ |
245 | int wd; /* wd for inotify, fd for kqueue */ |
240 | } ev_stat; |
246 | } ev_stat; |
241 | #endif |
247 | #endif |
242 | |
248 | |
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249 | #if EV_IDLE_ENABLE |
243 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
250 | /* invoked when the nothing else needs to be done, keeps the process from blocking */ |
244 | /* revent EV_IDLE */ |
251 | /* revent EV_IDLE */ |
245 | typedef struct ev_idle |
252 | typedef struct ev_idle |
246 | { |
253 | { |
247 | EV_WATCHER (ev_idle) |
254 | EV_WATCHER (ev_idle) |
248 | } ev_idle; |
255 | } ev_idle; |
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256 | #endif |
249 | |
257 | |
250 | /* invoked for each run of the mainloop, just before the blocking call */ |
258 | /* invoked for each run of the mainloop, just before the blocking call */ |
251 | /* you can still change events in any way you like */ |
259 | /* you can still change events in any way you like */ |
252 | /* revent EV_PREPARE */ |
260 | /* revent EV_PREPARE */ |
253 | typedef struct ev_prepare |
261 | typedef struct ev_prepare |
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275 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
283 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
276 | typedef struct ev_embed |
284 | typedef struct ev_embed |
277 | { |
285 | { |
278 | EV_WATCHER (ev_embed) |
286 | EV_WATCHER (ev_embed) |
279 | |
287 | |
280 | ev_io io; /* private */ |
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281 | struct ev_loop *loop; /* ro */ |
288 | struct ev_loop *other; /* ro */ |
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289 | ev_io io; /* private */ |
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290 | ev_prepare prepare; /* private */ |
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291 | ev_check check; /* unused */ |
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292 | ev_timer timer; /* unused */ |
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293 | ev_periodic periodic; /* unused */ |
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294 | ev_idle idle; /* unused */ |
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295 | ev_fork fork; /* unused */ |
282 | } ev_embed; |
296 | } ev_embed; |
283 | #endif |
297 | #endif |
284 | |
298 | |
285 | /* the presence of this union forces similar struct layout */ |
299 | /* the presence of this union forces similar struct layout */ |
286 | union ev_any_watcher |
300 | union ev_any_watcher |
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294 | struct ev_signal signal; |
308 | struct ev_signal signal; |
295 | struct ev_child child; |
309 | struct ev_child child; |
296 | #if EV_STAT_ENABLE |
310 | #if EV_STAT_ENABLE |
297 | struct ev_stat stat; |
311 | struct ev_stat stat; |
298 | #endif |
312 | #endif |
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313 | #if EV_IDLE_ENABLE |
299 | struct ev_idle idle; |
314 | struct ev_idle idle; |
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315 | #endif |
300 | struct ev_prepare prepare; |
316 | struct ev_prepare prepare; |
301 | struct ev_check check; |
317 | struct ev_check check; |
302 | #if EV_FORK_ENABLE |
318 | #if EV_FORK_ENABLE |
303 | struct ev_fork fork; |
319 | struct ev_fork fork; |
304 | #endif |
320 | #endif |
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328 | unsigned int ev_supported_backends (void); |
344 | unsigned int ev_supported_backends (void); |
329 | unsigned int ev_recommended_backends (void); |
345 | unsigned int ev_recommended_backends (void); |
330 | unsigned int ev_embeddable_backends (void); |
346 | unsigned int ev_embeddable_backends (void); |
331 | |
347 | |
332 | ev_tstamp ev_time (void); |
348 | ev_tstamp ev_time (void); |
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349 | void ev_sleep (ev_tstamp delay); /* sleep for a while */ |
333 | |
350 | |
334 | /* Sets the allocation function to use, works like realloc. |
351 | /* Sets the allocation function to use, works like realloc. |
335 | * It is used to allocate and free memory. |
352 | * It is used to allocate and free memory. |
336 | * If it returns zero when memory needs to be allocated, the library might abort |
353 | * If it returns zero when memory needs to be allocated, the library might abort |
337 | * or take some potentially destructive action. |
354 | * or take some potentially destructive action. |
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385 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
402 | /* if you create alternative loops you have to call ev_loop_fork on them */ |
386 | /* you can call it in either the parent or the child */ |
403 | /* you can call it in either the parent or the child */ |
387 | /* you can actually call it at any time, anywhere :) */ |
404 | /* you can actually call it at any time, anywhere :) */ |
388 | void ev_default_fork (void); |
405 | void ev_default_fork (void); |
389 | |
406 | |
390 | unsigned int ev_backend (EV_P); |
407 | unsigned int ev_backend (EV_P); /* backend in use by loop */ |
391 | unsigned int ev_loop_count (EV_P); |
408 | unsigned int ev_loop_count (EV_P); /* number of loop iterations */ |
392 | #endif |
409 | #endif |
393 | |
410 | |
394 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
411 | #define EVLOOP_NONBLOCK 1 /* do not block/wait */ |
395 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
412 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
396 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
413 | #define EVUNLOOP_CANCEL 0 /* undo unloop */ |
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398 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
415 | #define EVUNLOOP_ALL 2 /* unloop all loops */ |
399 | |
416 | |
400 | #if EV_PROTOTYPES |
417 | #if EV_PROTOTYPES |
401 | void ev_loop (EV_P_ int flags); |
418 | void ev_loop (EV_P_ int flags); |
402 | 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 */ |
419 | 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 */ |
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420 | |
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421 | void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
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422 | void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ |
403 | |
423 | |
404 | /* |
424 | /* |
405 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
425 | * ref/unref can be used to add or remove a refcount on the mainloop. every watcher |
406 | * keeps one reference. if you have a long-runing watcher you never unregister that |
426 | * keeps one reference. if you have a long-runing watcher you never unregister that |
407 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
427 | * should not keep ev_loop from running, unref() after starting, and ref() before stopping. |
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414 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
434 | void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); |
415 | #endif |
435 | #endif |
416 | |
436 | |
417 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
437 | /* these may evaluate ev multiple times, and the other arguments at most once */ |
418 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
438 | /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ |
419 | #define ev_init(ev,cb_) do { \ |
439 | #define ev_init(ev,cb_) do { \ |
420 | ((ev_watcher *)(void *)(ev))->active = \ |
440 | ((ev_watcher *)(void *)(ev))->active = \ |
421 | ((ev_watcher *)(void *)(ev))->pending = \ |
441 | ((ev_watcher *)(void *)(ev))->pending = \ |
422 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
442 | ((ev_watcher *)(void *)(ev))->priority = 0; \ |
423 | ev_set_cb ((ev), cb_); \ |
443 | ev_set_cb ((ev), cb_); \ |
424 | } while (0) |
444 | } while (0) |
425 | |
445 | |
426 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) |
446 | #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) |
427 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
447 | #define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) |
428 | #define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
448 | #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) |
429 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
449 | #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) |
430 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
450 | #define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) |
431 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
451 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) |
432 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
452 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
433 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
453 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
434 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
454 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
435 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
455 | #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0) |
436 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
456 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
437 | |
457 | |
438 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
458 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
439 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
459 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
440 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
460 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
441 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
461 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
442 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
462 | #define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) |
443 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) |
463 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0) |
444 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
464 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
445 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
465 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
446 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
466 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
447 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
467 | #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0) |
448 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
468 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
449 | |
469 | |
450 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
470 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
451 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
471 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
452 | |
472 | |
453 | #define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ |
473 | #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) |
454 | #define ev_cb(ev) (ev)->cb /* rw */ |
474 | #define ev_cb(ev) (ev)->cb /* rw */ |
455 | #define ev_set_priority(ev,pri) ev_priority (ev) = (pri) |
475 | #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) |
456 | |
476 | |
457 | #ifndef ev_set_cb |
477 | #ifndef ev_set_cb |
458 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
478 | # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) |
459 | #endif |
479 | #endif |
460 | |
480 | |
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465 | /* feeds an event into a watcher as if the event actually occured */ |
485 | /* feeds an event into a watcher as if the event actually occured */ |
466 | /* accepts any ev_watcher type */ |
486 | /* accepts any ev_watcher type */ |
467 | void ev_feed_event (EV_P_ void *w, int revents); |
487 | void ev_feed_event (EV_P_ void *w, int revents); |
468 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
488 | void ev_feed_fd_event (EV_P_ int fd, int revents); |
469 | void ev_feed_signal_event (EV_P_ int signum); |
489 | void ev_feed_signal_event (EV_P_ int signum); |
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490 | void ev_invoke (EV_P_ void *w, int revents); |
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491 | int ev_clear_pending (EV_P_ void *w); |
470 | |
492 | |
471 | void ev_io_start (EV_P_ ev_io *w); |
493 | void ev_io_start (EV_P_ ev_io *w); |
472 | void ev_io_stop (EV_P_ ev_io *w); |
494 | void ev_io_stop (EV_P_ ev_io *w); |
473 | |
495 | |
474 | void ev_timer_start (EV_P_ ev_timer *w); |
496 | void ev_timer_start (EV_P_ ev_timer *w); |
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494 | void ev_stat_start (EV_P_ ev_stat *w); |
516 | void ev_stat_start (EV_P_ ev_stat *w); |
495 | void ev_stat_stop (EV_P_ ev_stat *w); |
517 | void ev_stat_stop (EV_P_ ev_stat *w); |
496 | void ev_stat_stat (EV_P_ ev_stat *w); |
518 | void ev_stat_stat (EV_P_ ev_stat *w); |
497 | # endif |
519 | # endif |
498 | |
520 | |
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521 | # if EV_IDLE_ENABLE |
499 | void ev_idle_start (EV_P_ ev_idle *w); |
522 | void ev_idle_start (EV_P_ ev_idle *w); |
500 | void ev_idle_stop (EV_P_ ev_idle *w); |
523 | void ev_idle_stop (EV_P_ ev_idle *w); |
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524 | # endif |
501 | |
525 | |
502 | void ev_prepare_start (EV_P_ ev_prepare *w); |
526 | void ev_prepare_start (EV_P_ ev_prepare *w); |
503 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
527 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
504 | |
528 | |
505 | void ev_check_start (EV_P_ ev_check *w); |
529 | void ev_check_start (EV_P_ ev_check *w); |