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/cvs/libev/ev.h
Revision: 1.107
Committed: Wed Nov 5 02:48:45 2008 UTC (15 years, 8 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: rel-3_51, rel-3_49
Changes since 1.106: +1 -1 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 /*
2 * libev native API header
3 *
4 * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
25 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
26 * OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Alternatively, the contents of this file may be used under the terms of
29 * the GNU General Public License ("GPL") version 2 or any later version,
30 * in which case the provisions of the GPL are applicable instead of
31 * the above. If you wish to allow the use of your version of this file
32 * only under the terms of the GPL and not to allow others to use your
33 * version of this file under the BSD license, indicate your decision
34 * by deleting the provisions above and replace them with the notice
35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL.
38 */
39
40 #ifndef EV_H__
41 #define EV_H__
42
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46
47 typedef double ev_tstamp;
48
49 /* these priorities are inclusive, higher priorities will be called earlier */
50 #ifndef EV_MINPRI
51 # define EV_MINPRI -2
52 #endif
53 #ifndef EV_MAXPRI
54 # define EV_MAXPRI +2
55 #endif
56
57 #ifndef EV_MULTIPLICITY
58 # define EV_MULTIPLICITY 1
59 #endif
60
61 #ifndef EV_PERIODIC_ENABLE
62 # define EV_PERIODIC_ENABLE 1
63 #endif
64
65 #ifndef EV_STAT_ENABLE
66 # define EV_STAT_ENABLE 1
67 #endif
68
69 #ifndef EV_IDLE_ENABLE
70 # define EV_IDLE_ENABLE 1
71 #endif
72
73 #ifndef EV_FORK_ENABLE
74 # define EV_FORK_ENABLE 1
75 #endif
76
77 #ifndef EV_EMBED_ENABLE
78 # define EV_EMBED_ENABLE 1
79 #endif
80
81 #ifndef EV_ASYNC_ENABLE
82 # define EV_ASYNC_ENABLE 1
83 #endif
84
85 #ifndef EV_ATOMIC_T
86 # include <signal.h>
87 # define EV_ATOMIC_T sig_atomic_t volatile
88 #endif
89
90 /*****************************************************************************/
91
92 #if EV_STAT_ENABLE
93 # ifdef _WIN32
94 # include <time.h>
95 # include <sys/types.h>
96 # endif
97 # include <sys/stat.h>
98 #endif
99
100 /* support multiple event loops? */
101 #if EV_MULTIPLICITY
102 struct ev_loop;
103 # define EV_P struct ev_loop *loop
104 # define EV_P_ EV_P,
105 # define EV_A loop
106 # define EV_A_ EV_A,
107 # define EV_DEFAULT_UC ev_default_loop_uc ()
108 # define EV_DEFAULT_UC_ EV_DEFAULT_UC,
109 # define EV_DEFAULT ev_default_loop (0)
110 # define EV_DEFAULT_ EV_DEFAULT,
111 #else
112 # define EV_P void
113 # define EV_P_
114 # define EV_A
115 # define EV_A_
116 # define EV_DEFAULT
117 # define EV_DEFAULT_
118 # define EV_DEFAULT_UC
119 # define EV_DEFAULT_UC_
120 # undef EV_EMBED_ENABLE
121 #endif
122
123 #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
124 # define EV_INLINE static inline
125 #else
126 # define EV_INLINE static
127 #endif
128
129 /*****************************************************************************/
130
131 /* eventmask, revents, events... */
132 #define EV_UNDEF -1 /* guaranteed to be invalid */
133 #define EV_NONE 0x00 /* no events */
134 #define EV_READ 0x01 /* ev_io detected read will not block */
135 #define EV_WRITE 0x02 /* ev_io detected write will not block */
136 #define EV_IOFDSET 0x80 /* internal use only */
137 #define EV_TIMEOUT 0x00000100 /* timer timed out */
138 #define EV_PERIODIC 0x00000200 /* periodic timer timed out */
139 #define EV_SIGNAL 0x00000400 /* signal was received */
140 #define EV_CHILD 0x00000800 /* child/pid had status change */
141 #define EV_STAT 0x00001000 /* stat data changed */
142 #define EV_IDLE 0x00002000 /* event loop is idling */
143 #define EV_PREPARE 0x00004000 /* event loop about to poll */
144 #define EV_CHECK 0x00008000 /* event loop finished poll */
145 #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
146 #define EV_FORK 0x00020000 /* event loop resumed in child */
147 #define EV_ASYNC 0x00040000 /* async intra-loop signal */
148 #define EV_ERROR 0x80000000 /* sent when an error occurs */
149
150 /* can be used to add custom fields to all watchers, while losing binary compatibility */
151 #ifndef EV_COMMON
152 # define EV_COMMON void *data;
153 #endif
154 #ifndef EV_PROTOTYPES
155 # define EV_PROTOTYPES 1
156 #endif
157
158 #define EV_VERSION_MAJOR 3
159 #define EV_VERSION_MINOR 0
160
161 #ifndef EV_CB_DECLARE
162 # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
163 #endif
164 #ifndef EV_CB_INVOKE
165 # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
166 #endif
167
168 /*
169 * struct member types:
170 * private: you can look at them, but not change them, and they might not mean anything to you.
171 * ro: can be read anytime, but only changed when the watcher isn't active
172 * rw: can be read and modified anytime, even when the watcher is active
173 *
174 * some internal details that might be helpful for debugging:
175 *
176 * active is either 0, which means the watcher is not active,
177 * or the array index of the watcher (periodics, timers)
178 * or the array index + 1 (most other watchers)
179 * or simply 1 for watchers that aren't in some array.
180 * pending is either 0, in which case the watcher isn't,
181 * or the array index + 1 in the pendings array.
182 */
183
184 /* shared by all watchers */
185 #define EV_WATCHER(type) \
186 int active; /* private */ \
187 int pending; /* private */ \
188 int priority; /* private */ \
189 EV_COMMON /* rw */ \
190 EV_CB_DECLARE (type) /* private */
191
192 #define EV_WATCHER_LIST(type) \
193 EV_WATCHER (type) \
194 struct ev_watcher_list *next; /* private */
195
196 #define EV_WATCHER_TIME(type) \
197 EV_WATCHER (type) \
198 ev_tstamp at; /* private */
199
200 /* base class, nothing to see here unless you subclass */
201 typedef struct ev_watcher
202 {
203 EV_WATCHER (ev_watcher)
204 } ev_watcher;
205
206 /* base class, nothing to see here unless you subclass */
207 typedef struct ev_watcher_list
208 {
209 EV_WATCHER_LIST (ev_watcher_list)
210 } ev_watcher_list;
211
212 /* base class, nothing to see here unless you subclass */
213 typedef struct ev_watcher_time
214 {
215 EV_WATCHER_TIME (ev_watcher_time)
216 } ev_watcher_time;
217
218 /* invoked when fd is either EV_READable or EV_WRITEable */
219 /* revent EV_READ, EV_WRITE */
220 typedef struct ev_io
221 {
222 EV_WATCHER_LIST (ev_io)
223
224 int fd; /* ro */
225 int events; /* ro */
226 } ev_io;
227
228 /* invoked after a specific time, repeatable (based on monotonic clock) */
229 /* revent EV_TIMEOUT */
230 typedef struct ev_timer
231 {
232 EV_WATCHER_TIME (ev_timer)
233
234 ev_tstamp repeat; /* rw */
235 } ev_timer;
236
237 /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
238 /* revent EV_PERIODIC */
239 typedef struct ev_periodic
240 {
241 EV_WATCHER_TIME (ev_periodic)
242
243 ev_tstamp offset; /* rw */
244 ev_tstamp interval; /* rw */
245 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
246 } ev_periodic;
247
248 /* invoked when the given signal has been received */
249 /* revent EV_SIGNAL */
250 typedef struct ev_signal
251 {
252 EV_WATCHER_LIST (ev_signal)
253
254 int signum; /* ro */
255 } ev_signal;
256
257 /* invoked when sigchld is received and waitpid indicates the given pid */
258 /* revent EV_CHILD */
259 /* does not support priorities */
260 typedef struct ev_child
261 {
262 EV_WATCHER_LIST (ev_child)
263
264 int flags; /* private */
265 int pid; /* ro */
266 int rpid; /* rw, holds the received pid */
267 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
268 } ev_child;
269
270 #if EV_STAT_ENABLE
271 /* st_nlink = 0 means missing file or other error */
272 # ifdef _WIN32
273 typedef struct _stati64 ev_statdata;
274 # else
275 typedef struct stat ev_statdata;
276 # endif
277
278 /* invoked each time the stat data changes for a given path */
279 /* revent EV_STAT */
280 typedef struct ev_stat
281 {
282 EV_WATCHER_LIST (ev_stat)
283
284 ev_timer timer; /* private */
285 ev_tstamp interval; /* ro */
286 const char *path; /* ro */
287 ev_statdata prev; /* ro */
288 ev_statdata attr; /* ro */
289
290 int wd; /* wd for inotify, fd for kqueue */
291 } ev_stat;
292 #endif
293
294 #if EV_IDLE_ENABLE
295 /* invoked when the nothing else needs to be done, keeps the process from blocking */
296 /* revent EV_IDLE */
297 typedef struct ev_idle
298 {
299 EV_WATCHER (ev_idle)
300 } ev_idle;
301 #endif
302
303 /* invoked for each run of the mainloop, just before the blocking call */
304 /* you can still change events in any way you like */
305 /* revent EV_PREPARE */
306 typedef struct ev_prepare
307 {
308 EV_WATCHER (ev_prepare)
309 } ev_prepare;
310
311 /* invoked for each run of the mainloop, just after the blocking call */
312 /* revent EV_CHECK */
313 typedef struct ev_check
314 {
315 EV_WATCHER (ev_check)
316 } ev_check;
317
318 #if EV_FORK_ENABLE
319 /* the callback gets invoked before check in the child process when a fork was detected */
320 typedef struct ev_fork
321 {
322 EV_WATCHER (ev_fork)
323 } ev_fork;
324 #endif
325
326 #if EV_EMBED_ENABLE
327 /* used to embed an event loop inside another */
328 /* the callback gets invoked when the event loop has handled events, and can be 0 */
329 typedef struct ev_embed
330 {
331 EV_WATCHER (ev_embed)
332
333 struct ev_loop *other; /* ro */
334 ev_io io; /* private */
335 ev_prepare prepare; /* private */
336 ev_check check; /* unused */
337 ev_timer timer; /* unused */
338 ev_periodic periodic; /* unused */
339 ev_idle idle; /* unused */
340 ev_fork fork; /* private */
341 } ev_embed;
342 #endif
343
344 #if EV_ASYNC_ENABLE
345 /* invoked when somebody calls ev_async_send on the watcher */
346 /* revent EV_ASYNC */
347 typedef struct ev_async
348 {
349 EV_WATCHER (ev_async)
350
351 EV_ATOMIC_T sent; /* private */
352 } ev_async;
353
354 # define ev_async_pending(w) ((w)->sent + 0)
355 #endif
356
357 /* the presence of this union forces similar struct layout */
358 union ev_any_watcher
359 {
360 struct ev_watcher w;
361 struct ev_watcher_list wl;
362
363 struct ev_io io;
364 struct ev_timer timer;
365 struct ev_periodic periodic;
366 struct ev_signal signal;
367 struct ev_child child;
368 #if EV_STAT_ENABLE
369 struct ev_stat stat;
370 #endif
371 #if EV_IDLE_ENABLE
372 struct ev_idle idle;
373 #endif
374 struct ev_prepare prepare;
375 struct ev_check check;
376 #if EV_FORK_ENABLE
377 struct ev_fork fork;
378 #endif
379 #if EV_EMBED_ENABLE
380 struct ev_embed embed;
381 #endif
382 #if EV_ASYNC_ENABLE
383 struct ev_async async;
384 #endif
385 };
386
387 /* bits for ev_default_loop and ev_loop_new */
388 /* the default */
389 #define EVFLAG_AUTO 0x00000000U /* not quite a mask */
390 /* flag bits */
391 #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
392 #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
393 /* method bits to be ored together */
394 #define EVBACKEND_SELECT 0x00000001U /* about anywhere */
395 #define EVBACKEND_POLL 0x00000002U /* !win */
396 #define EVBACKEND_EPOLL 0x00000004U /* linux */
397 #define EVBACKEND_KQUEUE 0x00000008U /* bsd */
398 #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
399 #define EVBACKEND_PORT 0x00000020U /* solaris 10 */
400
401 #if EV_PROTOTYPES
402 int ev_version_major (void);
403 int ev_version_minor (void);
404
405 unsigned int ev_supported_backends (void);
406 unsigned int ev_recommended_backends (void);
407 unsigned int ev_embeddable_backends (void);
408
409 ev_tstamp ev_time (void);
410 void ev_sleep (ev_tstamp delay); /* sleep for a while */
411
412 /* Sets the allocation function to use, works like realloc.
413 * It is used to allocate and free memory.
414 * If it returns zero when memory needs to be allocated, the library might abort
415 * or take some potentially destructive action.
416 * The default is your system realloc function.
417 */
418 void ev_set_allocator (void *(*cb)(void *ptr, long size));
419
420 /* set the callback function to call on a
421 * retryable syscall error
422 * (such as failed select, poll, epoll_wait)
423 */
424 void ev_set_syserr_cb (void (*cb)(const char *msg));
425
426 #if EV_MULTIPLICITY
427 EV_INLINE struct ev_loop *
428 ev_default_loop_uc (void)
429 {
430 extern struct ev_loop *ev_default_loop_ptr;
431
432 return ev_default_loop_ptr;
433 }
434
435 /* the default loop is the only one that handles signals and child watchers */
436 /* you can call this as often as you like */
437 EV_INLINE struct ev_loop *
438 ev_default_loop (unsigned int flags)
439 {
440 struct ev_loop *loop = ev_default_loop_uc ();
441
442 if (!loop)
443 {
444 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
445
446 loop = ev_default_loop_init (flags);
447 }
448
449 return loop;
450 }
451
452 /* create and destroy alternative loops that don't handle signals */
453 struct ev_loop *ev_loop_new (unsigned int flags);
454 void ev_loop_destroy (EV_P);
455 void ev_loop_fork (EV_P);
456 void ev_loop_verify (EV_P);
457
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);
460
461 #else
462
463 int ev_default_loop (unsigned int flags); /* returns true when successful */
464
465 EV_INLINE ev_tstamp
466 ev_now (void)
467 {
468 extern ev_tstamp ev_rt_now;
469
470 return ev_rt_now;
471 }
472 #endif /* multiplicity */
473
474 EV_INLINE int
475 ev_is_default_loop (EV_P)
476 {
477 #if EV_MULTIPLICITY
478 extern struct ev_loop *ev_default_loop_ptr;
479
480 return !!(EV_A == ev_default_loop_ptr);
481 #else
482 return 1;
483 #endif
484 }
485
486 void ev_default_destroy (void); /* destroy the default loop */
487 /* this needs to be called after fork, to duplicate the default loop */
488 /* if you create alternative loops you have to call ev_loop_fork on them */
489 /* you can call it in either the parent or the child */
490 /* you can actually call it at any time, anywhere :) */
491 void ev_default_fork (void);
492
493 unsigned int ev_backend (EV_P); /* backend in use by loop */
494 unsigned int ev_loop_count (EV_P); /* number of loop iterations */
495 #endif /* prototypes */
496
497 #define EVLOOP_NONBLOCK 1 /* do not block/wait */
498 #define EVLOOP_ONESHOT 2 /* block *once* only */
499 #define EVUNLOOP_CANCEL 0 /* undo unloop */
500 #define EVUNLOOP_ONE 1 /* unloop once */
501 #define EVUNLOOP_ALL 2 /* unloop all loops */
502
503 #if EV_PROTOTYPES
504 void ev_loop (EV_P_ int flags);
505 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 */
506
507 void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
508 void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
509
510 /*
511 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
512 * keeps one reference. if you have a long-runing watcher you never unregister that
513 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
514 */
515 void ev_ref (EV_P);
516 void ev_unref (EV_P);
517
518 /* convenience function, wait for a single event, without registering an event watcher */
519 /* if timeout is < 0, do wait indefinitely */
520 void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
521 #endif
522
523 /* these may evaluate ev multiple times, and the other arguments at most once */
524 /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
525 #define ev_init(ev,cb_) do { \
526 ((ev_watcher *)(void *)(ev))->active = \
527 ((ev_watcher *)(void *)(ev))->pending = \
528 ((ev_watcher *)(void *)(ev))->priority = 0; \
529 ev_set_cb ((ev), cb_); \
530 } while (0)
531
532 #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0)
533 #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
534 #define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
535 #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
536 #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
537 #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
538 #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
539 #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
540 #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
541 #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
542 #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
543 #define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
544
545 #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
546 #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
547 #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
548 #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
549 #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
550 #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
551 #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
552 #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
553 #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
554 #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
555 #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
556 #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
557
558 #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
559 #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
560
561 #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
562 #define ev_cb(ev) (ev)->cb /* rw */
563 #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri)
564
565 #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
566
567 #ifndef ev_set_cb
568 # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
569 #endif
570
571 /* stopping (enabling, adding) a watcher does nothing if it is already running */
572 /* stopping (disabling, deleting) a watcher does nothing unless its already running */
573 #if EV_PROTOTYPES
574
575 /* feeds an event into a watcher as if the event actually occured */
576 /* accepts any ev_watcher type */
577 void ev_feed_event (EV_P_ void *w, int revents);
578 void ev_feed_fd_event (EV_P_ int fd, int revents);
579 void ev_feed_signal_event (EV_P_ int signum);
580 void ev_invoke (EV_P_ void *w, int revents);
581 int ev_clear_pending (EV_P_ void *w);
582
583 void ev_io_start (EV_P_ ev_io *w);
584 void ev_io_stop (EV_P_ ev_io *w);
585
586 void ev_timer_start (EV_P_ ev_timer *w);
587 void ev_timer_stop (EV_P_ ev_timer *w);
588 /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
589 void ev_timer_again (EV_P_ ev_timer *w);
590
591 #if EV_PERIODIC_ENABLE
592 void ev_periodic_start (EV_P_ ev_periodic *w);
593 void ev_periodic_stop (EV_P_ ev_periodic *w);
594 void ev_periodic_again (EV_P_ ev_periodic *w);
595 #endif
596
597 /* only supported in the default loop */
598 void ev_signal_start (EV_P_ ev_signal *w);
599 void ev_signal_stop (EV_P_ ev_signal *w);
600
601 /* only supported in the default loop */
602 void ev_child_start (EV_P_ ev_child *w);
603 void ev_child_stop (EV_P_ ev_child *w);
604
605 # if EV_STAT_ENABLE
606 void ev_stat_start (EV_P_ ev_stat *w);
607 void ev_stat_stop (EV_P_ ev_stat *w);
608 void ev_stat_stat (EV_P_ ev_stat *w);
609 # endif
610
611 # if EV_IDLE_ENABLE
612 void ev_idle_start (EV_P_ ev_idle *w);
613 void ev_idle_stop (EV_P_ ev_idle *w);
614 # endif
615
616 void ev_prepare_start (EV_P_ ev_prepare *w);
617 void ev_prepare_stop (EV_P_ ev_prepare *w);
618
619 void ev_check_start (EV_P_ ev_check *w);
620 void ev_check_stop (EV_P_ ev_check *w);
621
622 # if EV_FORK_ENABLE
623 void ev_fork_start (EV_P_ ev_fork *w);
624 void ev_fork_stop (EV_P_ ev_fork *w);
625 # endif
626
627 # if EV_EMBED_ENABLE
628 /* only supported when loop to be embedded is in fact embeddable */
629 void ev_embed_start (EV_P_ ev_embed *w);
630 void ev_embed_stop (EV_P_ ev_embed *w);
631 void ev_embed_sweep (EV_P_ ev_embed *w);
632 # endif
633
634 # if EV_ASYNC_ENABLE
635 void ev_async_start (EV_P_ ev_async *w);
636 void ev_async_stop (EV_P_ ev_async *w);
637 void ev_async_send (EV_P_ ev_async *w);
638 # endif
639
640 #endif
641
642 #ifdef __cplusplus
643 }
644 #endif
645
646 #endif
647