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Revision: 1.111
Committed: Mon Mar 16 21:15:06 2009 UTC (15 years, 2 months ago) by root
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1 /*
2 * libev native API header
3 *
4 * Copyright (c) 2007,2008,2009 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_IO EV_READ /* alias for type-detection */
138 #define EV_TIMEOUT 0x00000100 /* timer timed out */
139 #define EV_PERIODIC 0x00000200 /* periodic timer timed out */
140 #define EV_SIGNAL 0x00000400 /* signal was received */
141 #define EV_CHILD 0x00000800 /* child/pid had status change */
142 #define EV_STAT 0x00001000 /* stat data changed */
143 #define EV_IDLE 0x00002000 /* event loop is idling */
144 #define EV_PREPARE 0x00004000 /* event loop about to poll */
145 #define EV_CHECK 0x00008000 /* event loop finished poll */
146 #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
147 #define EV_FORK 0x00020000 /* event loop resumed in child */
148 #define EV_ASYNC 0x00040000 /* async intra-loop signal */
149 #define EV_ERROR 0x80000000 /* sent when an error occurs */
150
151 /* can be used to add custom fields to all watchers, while losing binary compatibility */
152 #ifndef EV_COMMON
153 # define EV_COMMON void *data;
154 #endif
155 #ifndef EV_PROTOTYPES
156 # define EV_PROTOTYPES 1
157 #endif
158
159 #define EV_VERSION_MAJOR 3
160 #define EV_VERSION_MINOR 0
161
162 #ifndef EV_CB_DECLARE
163 # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
164 #endif
165 #ifndef EV_CB_INVOKE
166 # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
167 #endif
168
169 /*
170 * struct member types:
171 * private: you may look at them, but not change them,
172 * and they might not mean anything to you.
173 * ro: can be read anytime, but only changed when the watcher isn't active.
174 * rw: can be read and modified anytime, even when the watcher is active.
175 *
176 * some internal details that might be helpful for debugging:
177 *
178 * active is either 0, which means the watcher is not active,
179 * or the array index of the watcher (periodics, timers)
180 * or the array index + 1 (most other watchers)
181 * or simply 1 for watchers that aren't in some array.
182 * pending is either 0, in which case the watcher isn't,
183 * or the array index + 1 in the pendings array.
184 */
185
186 /* shared by all watchers */
187 #define EV_WATCHER(type) \
188 int active; /* private */ \
189 int pending; /* private */ \
190 int priority; /* private */ \
191 EV_COMMON /* rw */ \
192 EV_CB_DECLARE (type) /* private */
193
194 #define EV_WATCHER_LIST(type) \
195 EV_WATCHER (type) \
196 struct ev_watcher_list *next; /* private */
197
198 #define EV_WATCHER_TIME(type) \
199 EV_WATCHER (type) \
200 ev_tstamp at; /* private */
201
202 /* base class, nothing to see here unless you subclass */
203 typedef struct ev_watcher
204 {
205 EV_WATCHER (ev_watcher)
206 } ev_watcher;
207
208 /* base class, nothing to see here unless you subclass */
209 typedef struct ev_watcher_list
210 {
211 EV_WATCHER_LIST (ev_watcher_list)
212 } ev_watcher_list;
213
214 /* base class, nothing to see here unless you subclass */
215 typedef struct ev_watcher_time
216 {
217 EV_WATCHER_TIME (ev_watcher_time)
218 } ev_watcher_time;
219
220 /* invoked when fd is either EV_READable or EV_WRITEable */
221 /* revent EV_READ, EV_WRITE */
222 typedef struct ev_io
223 {
224 EV_WATCHER_LIST (ev_io)
225
226 int fd; /* ro */
227 int events; /* ro */
228 } ev_io;
229
230 /* invoked after a specific time, repeatable (based on monotonic clock) */
231 /* revent EV_TIMEOUT */
232 typedef struct ev_timer
233 {
234 EV_WATCHER_TIME (ev_timer)
235
236 ev_tstamp repeat; /* rw */
237 } ev_timer;
238
239 /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
240 /* revent EV_PERIODIC */
241 typedef struct ev_periodic
242 {
243 EV_WATCHER_TIME (ev_periodic)
244
245 ev_tstamp offset; /* rw */
246 ev_tstamp interval; /* rw */
247 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
248 } ev_periodic;
249
250 /* invoked when the given signal has been received */
251 /* revent EV_SIGNAL */
252 typedef struct ev_signal
253 {
254 EV_WATCHER_LIST (ev_signal)
255
256 int signum; /* ro */
257 } ev_signal;
258
259 /* invoked when sigchld is received and waitpid indicates the given pid */
260 /* revent EV_CHILD */
261 /* does not support priorities */
262 typedef struct ev_child
263 {
264 EV_WATCHER_LIST (ev_child)
265
266 int flags; /* private */
267 int pid; /* ro */
268 int rpid; /* rw, holds the received pid */
269 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
270 } ev_child;
271
272 #if EV_STAT_ENABLE
273 /* st_nlink = 0 means missing file or other error */
274 # ifdef _WIN32
275 typedef struct _stati64 ev_statdata;
276 # else
277 typedef struct stat ev_statdata;
278 # endif
279
280 /* invoked each time the stat data changes for a given path */
281 /* revent EV_STAT */
282 typedef struct ev_stat
283 {
284 EV_WATCHER_LIST (ev_stat)
285
286 ev_timer timer; /* private */
287 ev_tstamp interval; /* ro */
288 const char *path; /* ro */
289 ev_statdata prev; /* ro */
290 ev_statdata attr; /* ro */
291
292 int wd; /* wd for inotify, fd for kqueue */
293 } ev_stat;
294 #endif
295
296 #if EV_IDLE_ENABLE
297 /* invoked when the nothing else needs to be done, keeps the process from blocking */
298 /* revent EV_IDLE */
299 typedef struct ev_idle
300 {
301 EV_WATCHER (ev_idle)
302 } ev_idle;
303 #endif
304
305 /* invoked for each run of the mainloop, just before the blocking call */
306 /* you can still change events in any way you like */
307 /* revent EV_PREPARE */
308 typedef struct ev_prepare
309 {
310 EV_WATCHER (ev_prepare)
311 } ev_prepare;
312
313 /* invoked for each run of the mainloop, just after the blocking call */
314 /* revent EV_CHECK */
315 typedef struct ev_check
316 {
317 EV_WATCHER (ev_check)
318 } ev_check;
319
320 #if EV_FORK_ENABLE
321 /* the callback gets invoked before check in the child process when a fork was detected */
322 typedef struct ev_fork
323 {
324 EV_WATCHER (ev_fork)
325 } ev_fork;
326 #endif
327
328 #if EV_EMBED_ENABLE
329 /* used to embed an event loop inside another */
330 /* the callback gets invoked when the event loop has handled events, and can be 0 */
331 typedef struct ev_embed
332 {
333 EV_WATCHER (ev_embed)
334
335 struct ev_loop *other; /* ro */
336 ev_io io; /* private */
337 ev_prepare prepare; /* private */
338 ev_check check; /* unused */
339 ev_timer timer; /* unused */
340 ev_periodic periodic; /* unused */
341 ev_idle idle; /* unused */
342 ev_fork fork; /* private */
343 } ev_embed;
344 #endif
345
346 #if EV_ASYNC_ENABLE
347 /* invoked when somebody calls ev_async_send on the watcher */
348 /* revent EV_ASYNC */
349 typedef struct ev_async
350 {
351 EV_WATCHER (ev_async)
352
353 EV_ATOMIC_T sent; /* private */
354 } ev_async;
355
356 # define ev_async_pending(w) ((w)->sent + 0)
357 #endif
358
359 /* the presence of this union forces similar struct layout */
360 union ev_any_watcher
361 {
362 struct ev_watcher w;
363 struct ev_watcher_list wl;
364
365 struct ev_io io;
366 struct ev_timer timer;
367 struct ev_periodic periodic;
368 struct ev_signal signal;
369 struct ev_child child;
370 #if EV_STAT_ENABLE
371 struct ev_stat stat;
372 #endif
373 #if EV_IDLE_ENABLE
374 struct ev_idle idle;
375 #endif
376 struct ev_prepare prepare;
377 struct ev_check check;
378 #if EV_FORK_ENABLE
379 struct ev_fork fork;
380 #endif
381 #if EV_EMBED_ENABLE
382 struct ev_embed embed;
383 #endif
384 #if EV_ASYNC_ENABLE
385 struct ev_async async;
386 #endif
387 };
388
389 /* bits for ev_default_loop and ev_loop_new */
390 /* the default */
391 #define EVFLAG_AUTO 0x00000000U /* not quite a mask */
392 /* flag bits */
393 #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
394 #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
395 /* method bits to be ored together */
396 #define EVBACKEND_SELECT 0x00000001U /* about anywhere */
397 #define EVBACKEND_POLL 0x00000002U /* !win */
398 #define EVBACKEND_EPOLL 0x00000004U /* linux */
399 #define EVBACKEND_KQUEUE 0x00000008U /* bsd */
400 #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
401 #define EVBACKEND_PORT 0x00000020U /* solaris 10 */
402
403 #if EV_PROTOTYPES
404 int ev_version_major (void);
405 int ev_version_minor (void);
406
407 unsigned int ev_supported_backends (void);
408 unsigned int ev_recommended_backends (void);
409 unsigned int ev_embeddable_backends (void);
410
411 ev_tstamp ev_time (void);
412 void ev_sleep (ev_tstamp delay); /* sleep for a while */
413
414 /* Sets the allocation function to use, works like realloc.
415 * It is used to allocate and free memory.
416 * If it returns zero when memory needs to be allocated, the library might abort
417 * or take some potentially destructive action.
418 * The default is your system realloc function.
419 */
420 void ev_set_allocator (void *(*cb)(void *ptr, long size));
421
422 /* set the callback function to call on a
423 * retryable syscall error
424 * (such as failed select, poll, epoll_wait)
425 */
426 void ev_set_syserr_cb (void (*cb)(const char *msg));
427
428 #if EV_MULTIPLICITY
429 EV_INLINE struct ev_loop *
430 ev_default_loop_uc (void)
431 {
432 extern struct ev_loop *ev_default_loop_ptr;
433
434 return ev_default_loop_ptr;
435 }
436
437 /* the default loop is the only one that handles signals and child watchers */
438 /* you can call this as often as you like */
439 EV_INLINE struct ev_loop *
440 ev_default_loop (unsigned int flags)
441 {
442 struct ev_loop *loop = ev_default_loop_uc ();
443
444 if (!loop)
445 {
446 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
447
448 loop = ev_default_loop_init (flags);
449 }
450
451 return loop;
452 }
453
454 /* create and destroy alternative loops that don't handle signals */
455 struct ev_loop *ev_loop_new (unsigned int flags);
456 void ev_loop_destroy (EV_P);
457 void ev_loop_fork (EV_P);
458 void ev_loop_verify (EV_P);
459
460 ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
461 void ev_now_update (EV_P);
462
463 #else
464
465 int ev_default_loop (unsigned int flags); /* returns true when successful */
466
467 EV_INLINE ev_tstamp
468 ev_now (void)
469 {
470 extern ev_tstamp ev_rt_now;
471
472 return ev_rt_now;
473 }
474 #endif /* multiplicity */
475
476 EV_INLINE int
477 ev_is_default_loop (EV_P)
478 {
479 #if EV_MULTIPLICITY
480 extern struct ev_loop *ev_default_loop_ptr;
481
482 return !!(EV_A == ev_default_loop_ptr);
483 #else
484 return 1;
485 #endif
486 }
487
488 void ev_default_destroy (void); /* destroy the default loop */
489 /* this needs to be called after fork, to duplicate the default loop */
490 /* if you create alternative loops you have to call ev_loop_fork on them */
491 /* you can call it in either the parent or the child */
492 /* you can actually call it at any time, anywhere :) */
493 void ev_default_fork (void);
494
495 unsigned int ev_backend (EV_P); /* backend in use by loop */
496 unsigned int ev_loop_count (EV_P); /* number of loop iterations */
497 #endif /* prototypes */
498
499 #define EVLOOP_NONBLOCK 1 /* do not block/wait */
500 #define EVLOOP_ONESHOT 2 /* block *once* only */
501 #define EVUNLOOP_CANCEL 0 /* undo unloop */
502 #define EVUNLOOP_ONE 1 /* unloop once */
503 #define EVUNLOOP_ALL 2 /* unloop all loops */
504
505 #if EV_PROTOTYPES
506 void ev_loop (EV_P_ int flags);
507 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 */
508
509 void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
510 void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
511
512 /*
513 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
514 * keeps one reference. if you have a long-runing watcher you never unregister that
515 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
516 */
517 void ev_ref (EV_P);
518 void ev_unref (EV_P);
519
520 /* convenience function, wait for a single event, without registering an event watcher */
521 /* if timeout is < 0, do wait indefinitely */
522 void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
523 #endif
524
525 /* these may evaluate ev multiple times, and the other arguments at most once */
526 /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
527 #define ev_init(ev,cb_) do { \
528 ((ev_watcher *)(void *)(ev))->active = \
529 ((ev_watcher *)(void *)(ev))->pending = \
530 ((ev_watcher *)(void *)(ev))->priority = 0; \
531 ev_set_cb ((ev), cb_); \
532 } while (0)
533
534 #define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
535 #define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
536 #define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
537 #define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
538 #define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
539 #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
540 #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
541 #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
542 #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
543 #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
544 #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
545 #define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
546
547 #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
548 #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
549 #define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
550 #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
551 #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
552 #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
553 #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
554 #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
555 #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
556 #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
557 #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
558 #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
559
560 #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
561 #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
562
563 #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
564 #define ev_cb(ev) (ev)->cb /* rw */
565 #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri)
566
567 #define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
568
569 #ifndef ev_set_cb
570 # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
571 #endif
572
573 /* stopping (enabling, adding) a watcher does nothing if it is already running */
574 /* stopping (disabling, deleting) a watcher does nothing unless its already running */
575 #if EV_PROTOTYPES
576
577 /* feeds an event into a watcher as if the event actually occured */
578 /* accepts any ev_watcher type */
579 void ev_feed_event (EV_P_ void *w, int revents);
580 void ev_feed_fd_event (EV_P_ int fd, int revents);
581 void ev_feed_signal_event (EV_P_ int signum);
582 void ev_invoke (EV_P_ void *w, int revents);
583 int ev_clear_pending (EV_P_ void *w);
584
585 void ev_io_start (EV_P_ ev_io *w);
586 void ev_io_stop (EV_P_ ev_io *w);
587
588 void ev_timer_start (EV_P_ ev_timer *w);
589 void ev_timer_stop (EV_P_ ev_timer *w);
590 /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
591 void ev_timer_again (EV_P_ ev_timer *w);
592
593 #if EV_PERIODIC_ENABLE
594 void ev_periodic_start (EV_P_ ev_periodic *w);
595 void ev_periodic_stop (EV_P_ ev_periodic *w);
596 void ev_periodic_again (EV_P_ ev_periodic *w);
597 #endif
598
599 /* only supported in the default loop */
600 void ev_signal_start (EV_P_ ev_signal *w);
601 void ev_signal_stop (EV_P_ ev_signal *w);
602
603 /* only supported in the default loop */
604 void ev_child_start (EV_P_ ev_child *w);
605 void ev_child_stop (EV_P_ ev_child *w);
606
607 # if EV_STAT_ENABLE
608 void ev_stat_start (EV_P_ ev_stat *w);
609 void ev_stat_stop (EV_P_ ev_stat *w);
610 void ev_stat_stat (EV_P_ ev_stat *w);
611 # endif
612
613 # if EV_IDLE_ENABLE
614 void ev_idle_start (EV_P_ ev_idle *w);
615 void ev_idle_stop (EV_P_ ev_idle *w);
616 # endif
617
618 void ev_prepare_start (EV_P_ ev_prepare *w);
619 void ev_prepare_stop (EV_P_ ev_prepare *w);
620
621 void ev_check_start (EV_P_ ev_check *w);
622 void ev_check_stop (EV_P_ ev_check *w);
623
624 # if EV_FORK_ENABLE
625 void ev_fork_start (EV_P_ ev_fork *w);
626 void ev_fork_stop (EV_P_ ev_fork *w);
627 # endif
628
629 # if EV_EMBED_ENABLE
630 /* only supported when loop to be embedded is in fact embeddable */
631 void ev_embed_start (EV_P_ ev_embed *w);
632 void ev_embed_stop (EV_P_ ev_embed *w);
633 void ev_embed_sweep (EV_P_ ev_embed *w);
634 # endif
635
636 # if EV_ASYNC_ENABLE
637 void ev_async_start (EV_P_ ev_async *w);
638 void ev_async_stop (EV_P_ ev_async *w);
639 void ev_async_send (EV_P_ ev_async *w);
640 # endif
641
642 #endif
643
644 #ifdef __cplusplus
645 }
646 #endif
647
648 #endif
649