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/cvs/libev/ev.h
Revision: 1.99
Committed: Wed Apr 16 01:37:14 2008 UTC (16 years, 3 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: rel-3_31, rel-3_3
Changes since 1.98: +26 -26 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 # include <sys/stat.h>
94 #endif
95
96 /* support multiple event loops? */
97 #if EV_MULTIPLICITY
98 struct ev_loop;
99 # define EV_P struct ev_loop *loop
100 # define EV_P_ EV_P,
101 # define EV_A loop
102 # define EV_A_ EV_A,
103 # define EV_DEFAULT_UC ev_default_loop_uc ()
104 # define EV_DEFAULT_UC_ EV_DEFAULT_UC,
105 # define EV_DEFAULT ev_default_loop (0)
106 # define EV_DEFAULT_ EV_DEFAULT,
107 #else
108 # define EV_P void
109 # define EV_P_
110 # define EV_A
111 # define EV_A_
112 # define EV_DEFAULT
113 # define EV_DEFAULT_
114 # define EV_DEFAULT_UC
115 # define EV_DEFAULT_UC_
116 # undef EV_EMBED_ENABLE
117 #endif
118
119 #if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
120 # define EV_INLINE static inline
121 #else
122 # define EV_INLINE static
123 #endif
124
125 /*****************************************************************************/
126
127 /* eventmask, revents, events... */
128 #define EV_UNDEF -1 /* guaranteed to be invalid */
129 #define EV_NONE 0x00 /* no events */
130 #define EV_READ 0x01 /* ev_io detected read will not block */
131 #define EV_WRITE 0x02 /* ev_io detected write will not block */
132 #define EV_IOFDSET 0x80 /* internal use only */
133 #define EV_TIMEOUT 0x00000100 /* timer timed out */
134 #define EV_PERIODIC 0x00000200 /* periodic timer timed out */
135 #define EV_SIGNAL 0x00000400 /* signal was received */
136 #define EV_CHILD 0x00000800 /* child/pid had status change */
137 #define EV_STAT 0x00001000 /* stat data changed */
138 #define EV_IDLE 0x00002000 /* event loop is idling */
139 #define EV_PREPARE 0x00004000 /* event loop about to poll */
140 #define EV_CHECK 0x00008000 /* event loop finished poll */
141 #define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
142 #define EV_FORK 0x00020000 /* event loop resumed in child */
143 #define EV_ASYNC 0x00040000 /* async intra-loop signal */
144 #define EV_ERROR 0x80000000 /* sent when an error occurs */
145
146 /* can be used to add custom fields to all watchers, while losing binary compatibility */
147 #ifndef EV_COMMON
148 # define EV_COMMON void *data;
149 #endif
150 #ifndef EV_PROTOTYPES
151 # define EV_PROTOTYPES 1
152 #endif
153
154 #define EV_VERSION_MAJOR 3
155 #define EV_VERSION_MINOR 0
156
157 #ifndef EV_CB_DECLARE
158 # define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
159 #endif
160 #ifndef EV_CB_INVOKE
161 # define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
162 #endif
163
164 /*
165 * struct member types:
166 * 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
168 * rw: can be read and modified anytime, even when the watcher is active
169 */
170
171 /* shared by all watchers */
172 #define EV_WATCHER(type) \
173 int active; /* private */ \
174 int pending; /* private */ \
175 int priority; /* private */ \
176 EV_COMMON /* rw */ \
177 EV_CB_DECLARE (type) /* private */
178
179 #define EV_WATCHER_LIST(type) \
180 EV_WATCHER (type) \
181 struct ev_watcher_list *next; /* private */
182
183 #define EV_WATCHER_TIME(type) \
184 EV_WATCHER (type) \
185 ev_tstamp at; /* private */
186
187 /* base class, nothing to see here unless you subclass */
188 typedef struct ev_watcher
189 {
190 EV_WATCHER (ev_watcher)
191 } ev_watcher;
192
193 /* base class, nothing to see here unless you subclass */
194 typedef struct ev_watcher_list
195 {
196 EV_WATCHER_LIST (ev_watcher_list)
197 } ev_watcher_list;
198
199 /* base class, nothing to see here unless you subclass */
200 typedef struct ev_watcher_time
201 {
202 EV_WATCHER_TIME (ev_watcher_time)
203 } ev_watcher_time;
204
205 /* invoked when fd is either EV_READable or EV_WRITEable */
206 /* revent EV_READ, EV_WRITE */
207 typedef struct ev_io
208 {
209 EV_WATCHER_LIST (ev_io)
210
211 int fd; /* ro */
212 int events; /* ro */
213 } ev_io;
214
215 /* invoked after a specific time, repeatable (based on monotonic clock) */
216 /* revent EV_TIMEOUT */
217 typedef struct ev_timer
218 {
219 EV_WATCHER_TIME (ev_timer)
220
221 ev_tstamp repeat; /* rw */
222 } ev_timer;
223
224 /* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
225 /* revent EV_PERIODIC */
226 typedef struct ev_periodic
227 {
228 EV_WATCHER_TIME (ev_periodic)
229
230 ev_tstamp offset; /* rw */
231 ev_tstamp interval; /* rw */
232 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
233 } ev_periodic;
234
235 /* invoked when the given signal has been received */
236 /* revent EV_SIGNAL */
237 typedef struct ev_signal
238 {
239 EV_WATCHER_LIST (ev_signal)
240
241 int signum; /* ro */
242 } ev_signal;
243
244 /* invoked when sigchld is received and waitpid indicates the given pid */
245 /* revent EV_CHILD */
246 /* does not support priorities */
247 typedef struct ev_child
248 {
249 EV_WATCHER_LIST (ev_child)
250
251 int flags; /* private */
252 int pid; /* ro */
253 int rpid; /* rw, holds the received pid */
254 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
255 } ev_child;
256
257 #if EV_STAT_ENABLE
258 /* st_nlink = 0 means missing file or other error */
259 # ifdef _WIN32
260 typedef struct _stati64 ev_statdata;
261 # else
262 typedef struct stat ev_statdata;
263 # endif
264
265 /* invoked each time the stat data changes for a given path */
266 /* revent EV_STAT */
267 typedef struct ev_stat
268 {
269 EV_WATCHER_LIST (ev_stat)
270
271 ev_timer timer; /* private */
272 ev_tstamp interval; /* ro */
273 const char *path; /* ro */
274 ev_statdata prev; /* ro */
275 ev_statdata attr; /* ro */
276
277 int wd; /* wd for inotify, fd for kqueue */
278 } ev_stat;
279 #endif
280
281 #if EV_IDLE_ENABLE
282 /* invoked when the nothing else needs to be done, keeps the process from blocking */
283 /* revent EV_IDLE */
284 typedef struct ev_idle
285 {
286 EV_WATCHER (ev_idle)
287 } ev_idle;
288 #endif
289
290 /* invoked for each run of the mainloop, just before the blocking call */
291 /* you can still change events in any way you like */
292 /* revent EV_PREPARE */
293 typedef struct ev_prepare
294 {
295 EV_WATCHER (ev_prepare)
296 } ev_prepare;
297
298 /* invoked for each run of the mainloop, just after the blocking call */
299 /* revent EV_CHECK */
300 typedef struct ev_check
301 {
302 EV_WATCHER (ev_check)
303 } ev_check;
304
305 #if EV_FORK_ENABLE
306 /* the callback gets invoked before check in the child process when a fork was detected */
307 typedef struct ev_fork
308 {
309 EV_WATCHER (ev_fork)
310 } ev_fork;
311 #endif
312
313 #if EV_EMBED_ENABLE
314 /* used to embed an event loop inside another */
315 /* the callback gets invoked when the event loop has handled events, and can be 0 */
316 typedef struct ev_embed
317 {
318 EV_WATCHER (ev_embed)
319
320 struct ev_loop *other; /* ro */
321 ev_io io; /* private */
322 ev_prepare prepare; /* private */
323 ev_check check; /* unused */
324 ev_timer timer; /* unused */
325 ev_periodic periodic; /* unused */
326 ev_idle idle; /* unused */
327 ev_fork fork; /* unused */
328 } ev_embed;
329 #endif
330
331 #if EV_ASYNC_ENABLE
332 /* invoked when somebody calls ev_async_send on the watcher */
333 /* revent EV_ASYNC */
334 typedef struct ev_async
335 {
336 EV_WATCHER (ev_async)
337
338 EV_ATOMIC_T sent; /* private */
339 } ev_async;
340
341 # define ev_async_pending(w) ((w)->sent + 0)
342 #endif
343
344 /* the presence of this union forces similar struct layout */
345 union ev_any_watcher
346 {
347 struct ev_watcher w;
348 struct ev_watcher_list wl;
349
350 struct ev_io io;
351 struct ev_timer timer;
352 struct ev_periodic periodic;
353 struct ev_signal signal;
354 struct ev_child child;
355 #if EV_STAT_ENABLE
356 struct ev_stat stat;
357 #endif
358 #if EV_IDLE_ENABLE
359 struct ev_idle idle;
360 #endif
361 struct ev_prepare prepare;
362 struct ev_check check;
363 #if EV_FORK_ENABLE
364 struct ev_fork fork;
365 #endif
366 #if EV_EMBED_ENABLE
367 struct ev_embed embed;
368 #endif
369 #if EV_ASYNC_ENABLE
370 struct ev_async async;
371 #endif
372 };
373
374 /* bits for ev_default_loop and ev_loop_new */
375 /* the default */
376 #define EVFLAG_AUTO 0x00000000U /* not quite a mask */
377 /* flag bits */
378 #define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
379 #define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
380 /* method bits to be ored together */
381 #define EVBACKEND_SELECT 0x00000001U /* about anywhere */
382 #define EVBACKEND_POLL 0x00000002U /* !win */
383 #define EVBACKEND_EPOLL 0x00000004U /* linux */
384 #define EVBACKEND_KQUEUE 0x00000008U /* bsd */
385 #define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
386 #define EVBACKEND_PORT 0x00000020U /* solaris 10 */
387
388 #if EV_PROTOTYPES
389 int ev_version_major (void);
390 int ev_version_minor (void);
391
392 unsigned int ev_supported_backends (void);
393 unsigned int ev_recommended_backends (void);
394 unsigned int ev_embeddable_backends (void);
395
396 ev_tstamp ev_time (void);
397 void ev_sleep (ev_tstamp delay); /* sleep for a while */
398
399 /* Sets the allocation function to use, works like realloc.
400 * It is used to allocate and free memory.
401 * If it returns zero when memory needs to be allocated, the library might abort
402 * or take some potentially destructive action.
403 * The default is your system realloc function.
404 */
405 void ev_set_allocator (void *(*cb)(void *ptr, long size));
406
407 /* set the callback function to call on a
408 * retryable syscall error
409 * (such as failed select, poll, epoll_wait)
410 */
411 void ev_set_syserr_cb (void (*cb)(const char *msg));
412
413 # if EV_MULTIPLICITY
414 EV_INLINE struct ev_loop *
415 ev_default_loop_uc (void)
416 {
417 extern struct ev_loop *ev_default_loop_ptr;
418
419 return ev_default_loop_ptr;
420 }
421
422 /* the default loop is the only one that handles signals and child watchers */
423 /* you can call this as often as you like */
424 EV_INLINE struct ev_loop *
425 ev_default_loop (unsigned int flags)
426 {
427 struct ev_loop *loop = ev_default_loop_uc ();
428
429 if (!loop)
430 {
431 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
432
433 loop = ev_default_loop_init (flags);
434 }
435
436 return loop;
437 }
438
439 /* create and destroy alternative loops that don't handle signals */
440 struct ev_loop *ev_loop_new (unsigned int flags);
441 void ev_loop_destroy (EV_P);
442 void ev_loop_fork (EV_P);
443
444 ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
445
446 # else
447
448 int ev_default_loop (unsigned int flags); /* returns true when successful */
449
450 EV_INLINE ev_tstamp
451 ev_now (void)
452 {
453 extern ev_tstamp ev_rt_now;
454
455 return ev_rt_now;
456 }
457 # endif
458
459 EV_INLINE int
460 ev_is_default_loop (EV_P)
461 {
462 #if EV_MULTIPLICITY
463 extern struct ev_loop *ev_default_loop_ptr;
464
465 return !!(EV_A == ev_default_loop_ptr);
466 #else
467 return 1;
468 #endif
469 }
470
471 void ev_default_destroy (void); /* destroy the default loop */
472 /* this needs to be called after fork, to duplicate the default loop */
473 /* if you create alternative loops you have to call ev_loop_fork on them */
474 /* you can call it in either the parent or the child */
475 /* you can actually call it at any time, anywhere :) */
476 void ev_default_fork (void);
477
478 unsigned int ev_backend (EV_P); /* backend in use by loop */
479 unsigned int ev_loop_count (EV_P); /* number of loop iterations */
480 #endif
481
482 #define EVLOOP_NONBLOCK 1 /* do not block/wait */
483 #define EVLOOP_ONESHOT 2 /* block *once* only */
484 #define EVUNLOOP_CANCEL 0 /* undo unloop */
485 #define EVUNLOOP_ONE 1 /* unloop once */
486 #define EVUNLOOP_ALL 2 /* unloop all loops */
487
488 #if EV_PROTOTYPES
489 void ev_loop (EV_P_ int flags);
490 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 */
491
492 void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
493 void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
494
495 /*
496 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
497 * keeps one reference. if you have a long-runing watcher you never unregister that
498 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
499 */
500 void ev_ref (EV_P);
501 void ev_unref (EV_P);
502
503 /* convinience function, wait for a single event, without registering an event watcher */
504 /* 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);
506 #endif
507
508 /* these may evaluate ev multiple times, and the other arguments at most once */
509 /* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
510 #define ev_init(ev,cb_) do { \
511 ((ev_watcher *)(void *)(ev))->active = \
512 ((ev_watcher *)(void *)(ev))->pending = \
513 ((ev_watcher *)(void *)(ev))->priority = 0; \
514 ev_set_cb ((ev), cb_); \
515 } while (0)
516
517 #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)
519 #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)
521 #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)
523 #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
524 #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
525 #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
526 #define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
527 #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
528 #define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
529
530 #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
531 #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
532 #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
533 #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
534 #define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
535 #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
536 #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
537 #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
538 #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
539 #define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
540 #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
541 #define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
542
543 #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
544 #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
545
546 #define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
547 #define ev_cb(ev) (ev)->cb /* rw */
548 #define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri)
549
550 #ifndef ev_set_cb
551 # define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
552 #endif
553
554 /* stopping (enabling, adding) a watcher does nothing if it is already running */
555 /* stopping (disabling, deleting) a watcher does nothing unless its already running */
556 #if EV_PROTOTYPES
557
558 /* feeds an event into a watcher as if the event actually occured */
559 /* accepts any ev_watcher type */
560 void ev_feed_event (EV_P_ void *w, int revents);
561 void ev_feed_fd_event (EV_P_ int fd, int revents);
562 void ev_feed_signal_event (EV_P_ int signum);
563 void ev_invoke (EV_P_ void *w, int revents);
564 int ev_clear_pending (EV_P_ void *w);
565
566 void ev_io_start (EV_P_ ev_io *w);
567 void ev_io_stop (EV_P_ ev_io *w);
568
569 void ev_timer_start (EV_P_ ev_timer *w);
570 void ev_timer_stop (EV_P_ ev_timer *w);
571 /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
572 void ev_timer_again (EV_P_ ev_timer *w);
573
574 #if EV_PERIODIC_ENABLE
575 void ev_periodic_start (EV_P_ ev_periodic *w);
576 void ev_periodic_stop (EV_P_ ev_periodic *w);
577 void ev_periodic_again (EV_P_ ev_periodic *w);
578 #endif
579
580 /* only supported in the default loop */
581 void ev_signal_start (EV_P_ ev_signal *w);
582 void ev_signal_stop (EV_P_ ev_signal *w);
583
584 /* only supported in the default loop */
585 void ev_child_start (EV_P_ ev_child *w);
586 void ev_child_stop (EV_P_ ev_child *w);
587
588 # if EV_STAT_ENABLE
589 void ev_stat_start (EV_P_ ev_stat *w);
590 void ev_stat_stop (EV_P_ ev_stat *w);
591 void ev_stat_stat (EV_P_ ev_stat *w);
592 # endif
593
594 # if EV_IDLE_ENABLE
595 void ev_idle_start (EV_P_ ev_idle *w);
596 void ev_idle_stop (EV_P_ ev_idle *w);
597 # endif
598
599 void ev_prepare_start (EV_P_ ev_prepare *w);
600 void ev_prepare_stop (EV_P_ ev_prepare *w);
601
602 void ev_check_start (EV_P_ ev_check *w);
603 void ev_check_stop (EV_P_ ev_check *w);
604
605 # if EV_FORK_ENABLE
606 void ev_fork_start (EV_P_ ev_fork *w);
607 void ev_fork_stop (EV_P_ ev_fork *w);
608 # endif
609
610 # if EV_EMBED_ENABLE
611 /* only supported when loop to be embedded is in fact embeddable */
612 void ev_embed_start (EV_P_ ev_embed *w);
613 void ev_embed_stop (EV_P_ ev_embed *w);
614 void ev_embed_sweep (EV_P_ ev_embed *w);
615 # endif
616
617 # if EV_ASYNC_ENABLE
618 void ev_async_start (EV_P_ ev_async *w);
619 void ev_async_stop (EV_P_ ev_async *w);
620 void ev_async_send (EV_P_ ev_async *w);
621 # endif
622
623 #endif
624
625 #ifdef __cplusplus
626 }
627 #endif
628
629 #endif
630