[ViewVC] Diff of: cvs/libev/ev.h

Comparing libev/ev.h (file contents):
Revision 1.75 by root, Wed Nov 28 17:32:24 2007 UTC vs.
Revision 1.114 by root, Wed Apr 15 19:35:53 2009 UTC

…		…
1	/*	1	/*
		2	* libev native API header
		3	*
2	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
3	* All rights reserved.	5	* All rights reserved.
4	*	6	*
5	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without modifica-
6	* modification, are permitted provided that the following conditions are	8	* tion, are permitted provided that the following conditions are met:
7	* 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.
8	*	27	*
9	* * Redistributions of source code must retain the above copyright	28	* Alternatively, the contents of this file may be used under the terms of
10	* notice, this list of conditions and the following disclaimer.	29	* the GNU General Public License ("GPL") version 2 or any later version,
11	*	30	* in which case the provisions of the GPL are applicable instead of
12	* * Redistributions in binary form must reproduce the above	31	* the above. If you wish to allow the use of your version of this file
13	* copyright notice, this list of conditions and the following	32	* only under the terms of the GPL and not to allow others to use your
14	* disclaimer in the documentation and/or other materials provided	33	* version of this file under the BSD license, indicate your decision
15	* with the distribution.	34	* by deleting the provisions above and replace them with the notice
16	*	35	* and other provisions required by the GPL. If you do not delete the
17	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	36	* provisions above, a recipient may use your version of this file under
18	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT	37	* either the BSD or the GPL.
19	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	38	*/
29		39
30	#ifndef EV_H__	40	#ifndef EV_H__
31	#define EV_H__	41	#define EV_H__
32		42
54		64
55	#ifndef EV_STAT_ENABLE	65	#ifndef EV_STAT_ENABLE
56	# define EV_STAT_ENABLE 1	66	# define EV_STAT_ENABLE 1
57	#endif	67	#endif
58		68
		69	#ifndef EV_IDLE_ENABLE
		70	# define EV_IDLE_ENABLE 1
		71	#endif
		72
59	#ifndef EV_FORK_ENABLE	73	#ifndef EV_FORK_ENABLE
60	# define EV_FORK_ENABLE 1	74	# define EV_FORK_ENABLE 1
61	#endif	75	#endif
62		76
63	#ifndef EV_EMBED_ENABLE	77	#ifndef EV_EMBED_ENABLE
64	# define EV_EMBED_ENABLE 1	78	# define EV_EMBED_ENABLE 1
65	#endif	79	#endif
66		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
67	/*****************************************************************************/	90	/*****************************************************************************/
68		91
69	#if EV_STAT_ENABLE	92	#if EV_STAT_ENABLE
		93	# ifdef _WIN32
		94	# include <time.h>
		95	# include <sys/types.h>
		96	# endif
70	# include <sys/stat.h>	97	# include <sys/stat.h>
71	#endif	98	#endif
72		99
73	/* support multiple event loops? */	100	/* support multiple event loops? */
74	#if EV_MULTIPLICITY	101	#if EV_MULTIPLICITY
75	struct ev_loop;	102	struct ev_loop;
76	# define EV_P struct ev_loop *loop	103	# define EV_P struct ev_loop *loop
77	# define EV_P_ EV_P,	104	# define EV_P_ EV_P,
78	# define EV_A loop	105	# define EV_A loop
79	# define EV_A_ EV_A,	106	# define EV_A_ EV_A,
		107	# define EV_DEFAULT_UC ev_default_loop_uc ()
		108	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
80	# define EV_DEFAULT ev_default_loop (0)	109	# define EV_DEFAULT ev_default_loop (0)
81	# define EV_DEFAULT_ EV_DEFAULT,	110	# define EV_DEFAULT_ EV_DEFAULT,
82	#else	111	#else
83	# define EV_P void	112	# define EV_P void
84	# define EV_P_	113	# define EV_P_
85	# define EV_A	114	# define EV_A
86	# define EV_A_	115	# define EV_A_
87	# define EV_DEFAULT	116	# define EV_DEFAULT
88	# define EV_DEFAULT_	117	# define EV_DEFAULT_
89		118	# define EV_DEFAULT_UC
		119	# define EV_DEFAULT_UC_
90	# undef EV_EMBED_ENABLE	120	# undef EV_EMBED_ENABLE
91	#endif	121	#endif
92		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
93	/* eventmask, revents, events... */	131	/* eventmask, revents, events... */
94	#define EV_UNDEF -1L /* guaranteed to be invalid */	132	#define EV_UNDEF -1 /* guaranteed to be invalid */
95	#define EV_NONE 0x00L /* no events */	133	#define EV_NONE 0x00 /* no events */
96	#define EV_READ 0x01L /* ev_io detected read will not block */	134	#define EV_READ 0x01 /* ev_io detected read will not block */
97	#define EV_WRITE 0x02L /* ev_io detected write 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 */
98	#define EV_TIMEOUT 0x00000100L /* timer timed out */	138	#define EV_TIMEOUT 0x00000100 /* timer timed out */
		139	#define EV_TIMER EV_TIMEOUT /* alias for type-detection */
99	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	140	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
100	#define EV_SIGNAL 0x00000400L /* signal was received */	141	#define EV_SIGNAL 0x00000400 /* signal was received */
101	#define EV_CHILD 0x00000800L /* child/pid had status change */	142	#define EV_CHILD 0x00000800 /* child/pid had status change */
102	#define EV_STAT 0x00001000L /* stat data changed */	143	#define EV_STAT 0x00001000 /* stat data changed */
103	#define EV_IDLE 0x00002000L /* event loop is idling */	144	#define EV_IDLE 0x00002000 /* event loop is idling */
104	#define EV_PREPARE 0x00004000L /* event loop about to poll */	145	#define EV_PREPARE 0x00004000 /* event loop about to poll */
105	#define EV_CHECK 0x00008000L /* event loop finished poll */	146	#define EV_CHECK 0x00008000 /* event loop finished poll */
106	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */	147	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
107	#define EV_FORK 0x00020000L /* event loop resumed in child */	148	#define EV_FORK 0x00020000 /* event loop resumed in child */
		149	#define EV_ASYNC 0x00040000 /* async intra-loop signal */
		150	#define EV_CUSTOM 0x01000000 /* for use by user code */
108	#define EV_ERROR 0x80000000L /* sent when an error occurs */	151	#define EV_ERROR 0x80000000 /* sent when an error occurs */
109		152
110	/* can be used to add custom fields to all watchers, while losing binary compatibility */	153	/* can be used to add custom fields to all watchers, while losing binary compatibility */
111	#ifndef EV_COMMON	154	#ifndef EV_COMMON
112	# define EV_COMMON void *data;	155	# define EV_COMMON void *data;
113	#endif	156	#endif
114	#ifndef EV_PROTOTYPES	157	#ifndef EV_PROTOTYPES
115	# define EV_PROTOTYPES 1	158	# define EV_PROTOTYPES 1
116	#endif	159	#endif
117		160
118	#define EV_VERSION_MAJOR 1	161	#define EV_VERSION_MAJOR 3
119	#define EV_VERSION_MINOR 1	162	#define EV_VERSION_MINOR 0
120		163
121	#ifndef EV_CB_DECLARE	164	#ifndef EV_CB_DECLARE
122	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	165	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
123	#endif	166	#endif
124	#ifndef EV_CB_INVOKE	167	#ifndef EV_CB_INVOKE
125	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	168	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
126	#endif	169	#endif
127		170
128	/*	171	/*
129	* struct member types:	172	* struct member types:
130	* private: you can look at them, but not change them, and they might not mean anything to you.	173	* private: you may look at them, but not change them,
		174	* and they might not mean anything to you.
131	* ro: can be read anytime, but only changed when the watcher isn't active	175	* ro: can be read anytime, but only changed when the watcher isn't active.
132	* rw: can be read and modified anytime, even when the watcher is active	176	* rw: can be read and modified anytime, even when the watcher is active.
		177	*
		178	* some internal details that might be helpful for debugging:
		179	*
		180	* active is either 0, which means the watcher is not active,
		181	* or the array index of the watcher (periodics, timers)
		182	* or the array index + 1 (most other watchers)
		183	* or simply 1 for watchers that aren't in some array.
		184	* pending is either 0, in which case the watcher isn't,
		185	* or the array index + 1 in the pendings array.
133	*/	186	*/
134		187
135	/* shared by all watchers */	188	/* shared by all watchers */
136	#define EV_WATCHER(type) \	189	#define EV_WATCHER(type) \
137	int active; /* private */ \	190	int active; /* private */ \
…		…
189	/* revent EV_PERIODIC */	242	/* revent EV_PERIODIC */
190	typedef struct ev_periodic	243	typedef struct ev_periodic
191	{	244	{
192	EV_WATCHER_TIME (ev_periodic)	245	EV_WATCHER_TIME (ev_periodic)
193		246
		247	ev_tstamp offset; /* rw */
194	ev_tstamp interval; /* rw */	248	ev_tstamp interval; /* rw */
195	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	249	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
196	} ev_periodic;	250	} ev_periodic;
197		251
198	/* invoked when the given signal has been received */	252	/* invoked when the given signal has been received */
…		…
209	/* does not support priorities */	263	/* does not support priorities */
210	typedef struct ev_child	264	typedef struct ev_child
211	{	265	{
212	EV_WATCHER_LIST (ev_child)	266	EV_WATCHER_LIST (ev_child)
213		267
		268	int flags; /* private */
214	int pid; /* ro */	269	int pid; /* ro */
215	int rpid; /* rw, holds the received pid */	270	int rpid; /* rw, holds the received pid */
216	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	271	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
217	} ev_child;	272	} ev_child;
218		273
…		…
238		293
239	int wd; /* wd for inotify, fd for kqueue */	294	int wd; /* wd for inotify, fd for kqueue */
240	} ev_stat;	295	} ev_stat;
241	#endif	296	#endif
242		297
		298	#if EV_IDLE_ENABLE
243	/* invoked when the nothing else needs to be done, keeps the process from blocking */	299	/* invoked when the nothing else needs to be done, keeps the process from blocking */
244	/* revent EV_IDLE */	300	/* revent EV_IDLE */
245	typedef struct ev_idle	301	typedef struct ev_idle
246	{	302	{
247	EV_WATCHER (ev_idle)	303	EV_WATCHER (ev_idle)
248	} ev_idle;	304	} ev_idle;
		305	#endif
249		306
250	/* invoked for each run of the mainloop, just before the blocking call */	307	/* invoked for each run of the mainloop, just before the blocking call */
251	/* you can still change events in any way you like */	308	/* you can still change events in any way you like */
252	/* revent EV_PREPARE */	309	/* revent EV_PREPARE */
253	typedef struct ev_prepare	310	typedef struct ev_prepare
…		…
275	/* the callback gets invoked when the event loop has handled events, and can be 0 */	332	/* the callback gets invoked when the event loop has handled events, and can be 0 */
276	typedef struct ev_embed	333	typedef struct ev_embed
277	{	334	{
278	EV_WATCHER (ev_embed)	335	EV_WATCHER (ev_embed)
279		336
280	ev_io io; /* private */
281	struct ev_loop loop; / ro */	337	struct ev_loop other; / ro */
		338	ev_io io; /* private */
		339	ev_prepare prepare; /* private */
		340	ev_check check; /* unused */
		341	ev_timer timer; /* unused */
		342	ev_periodic periodic; /* unused */
		343	ev_idle idle; /* unused */
		344	ev_fork fork; /* private */
282	} ev_embed;	345	} ev_embed;
		346	#endif
		347
		348	#if EV_ASYNC_ENABLE
		349	/* invoked when somebody calls ev_async_send on the watcher */
		350	/* revent EV_ASYNC */
		351	typedef struct ev_async
		352	{
		353	EV_WATCHER (ev_async)
		354
		355	EV_ATOMIC_T sent; /* private */
		356	} ev_async;
		357
		358	# define ev_async_pending(w) ((w)->sent + 0)
283	#endif	359	#endif
284		360
285	/* the presence of this union forces similar struct layout */	361	/* the presence of this union forces similar struct layout */
286	union ev_any_watcher	362	union ev_any_watcher
287	{	363	{
…		…
294	struct ev_signal signal;	370	struct ev_signal signal;
295	struct ev_child child;	371	struct ev_child child;
296	#if EV_STAT_ENABLE	372	#if EV_STAT_ENABLE
297	struct ev_stat stat;	373	struct ev_stat stat;
298	#endif	374	#endif
		375	#if EV_IDLE_ENABLE
299	struct ev_idle idle;	376	struct ev_idle idle;
		377	#endif
300	struct ev_prepare prepare;	378	struct ev_prepare prepare;
301	struct ev_check check;	379	struct ev_check check;
302	#if EV_FORK_ENABLE	380	#if EV_FORK_ENABLE
303	struct ev_fork fork;	381	struct ev_fork fork;
304	#endif	382	#endif
305	#if EV_EMBED_ENABLE	383	#if EV_EMBED_ENABLE
306	struct ev_embed embed;	384	struct ev_embed embed;
307	#endif	385	#endif
		386	#if EV_ASYNC_ENABLE
		387	struct ev_async async;
		388	#endif
308	};	389	};
309		390
310	/* bits for ev_default_loop and ev_loop_new */	391	/* bits for ev_default_loop and ev_loop_new */
311	/* the default */	392	/* the default */
312	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	393	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
313	/* flag bits */	394	/* flag bits */
314	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	395	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
		396	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
315	/* method bits to be ored together */	397	/* method bits to be ored together */
316	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	398	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
317	#define EVBACKEND_POLL 0x00000002UL /* !win */	399	#define EVBACKEND_POLL 0x00000002U /* !win */
318	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	400	#define EVBACKEND_EPOLL 0x00000004U /* linux */
319	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	401	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
320	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	402	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
321	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	403	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
322		404
323	#if EV_PROTOTYPES	405	#if EV_PROTOTYPES
324	int ev_version_major (void);	406	int ev_version_major (void);
325	int ev_version_minor (void);	407	int ev_version_minor (void);
326		408
327	unsigned int ev_supported_backends (void);	409	unsigned int ev_supported_backends (void);
328	unsigned int ev_recommended_backends (void);	410	unsigned int ev_recommended_backends (void);
329	unsigned int ev_embeddable_backends (void);	411	unsigned int ev_embeddable_backends (void);
330		412
331	ev_tstamp ev_time (void);	413	ev_tstamp ev_time (void);
		414	void ev_sleep (ev_tstamp delay); /* sleep for a while */
332		415
333	/* Sets the allocation function to use, works like realloc.	416	/* Sets the allocation function to use, works like realloc.
334	* It is used to allocate and free memory.	417	* It is used to allocate and free memory.
335	* If it returns zero when memory needs to be allocated, the library might abort	418	* If it returns zero when memory needs to be allocated, the library might abort
336	* or take some potentially destructive action.	419	* or take some potentially destructive action.
…		…
342	* retryable syscall error	425	* retryable syscall error
343	* (such as failed select, poll, epoll_wait)	426	* (such as failed select, poll, epoll_wait)
344	*/	427	*/
345	void ev_set_syserr_cb (void (cb)(const char msg));	428	void ev_set_syserr_cb (void (cb)(const char msg));
346		429
347	# if EV_MULTIPLICITY	430	#if EV_MULTIPLICITY
		431	EV_INLINE struct ev_loop *
		432	ev_default_loop_uc (void)
		433	{
		434	extern struct ev_loop *ev_default_loop_ptr;
		435
		436	return ev_default_loop_ptr;
		437	}
		438
348	/* the default loop is the only one that handles signals and child watchers */	439	/* the default loop is the only one that handles signals and child watchers */
349	/* you can call this as often as you like */	440	/* you can call this as often as you like */
350	static struct ev_loop *	441	EV_INLINE struct ev_loop *
351	ev_default_loop (unsigned int flags)	442	ev_default_loop (unsigned int flags)
352	{	443	{
353	extern struct ev_loop *ev_default_loop_ptr;	444	struct ev_loop *loop = ev_default_loop_uc ();
		445
		446	if (!loop)
		447	{
354	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	448	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
355		449
356	if (!ev_default_loop_ptr)
357	ev_default_loop_init (flags);	450	loop = ev_default_loop_init (flags);
		451	}
358		452
359	return ev_default_loop_ptr;	453	return loop;
360	}	454	}
361		455
362	/* create and destroy alternative loops that don't handle signals */	456	/* create and destroy alternative loops that don't handle signals */
363	struct ev_loop *ev_loop_new (unsigned int flags);	457	struct ev_loop *ev_loop_new (unsigned int flags);
364	void ev_loop_destroy (EV_P);	458	void ev_loop_destroy (EV_P);
365	void ev_loop_fork (EV_P);	459	void ev_loop_fork (EV_P);
		460	void ev_loop_verify (EV_P);
366		461
367	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	462	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
		463	void ev_now_update (EV_P);
368		464
369	# else	465	#else
370		466
371	int ev_default_loop (unsigned int flags); /* returns true when successful */	467	int ev_default_loop (unsigned int flags); /* returns true when successful */
372		468
373	static ev_tstamp	469	EV_INLINE ev_tstamp
374	ev_now (void)	470	ev_now (void)
375	{	471	{
376	extern ev_tstamp ev_rt_now;	472	extern ev_tstamp ev_rt_now;
377		473
378	return ev_rt_now;	474	return ev_rt_now;
379	}	475	}
		476	#endif /* multiplicity */
		477
		478	EV_INLINE int
		479	ev_is_default_loop (EV_P)
		480	{
		481	#if EV_MULTIPLICITY
		482	extern struct ev_loop *ev_default_loop_ptr;
		483
		484	return !!(EV_A == ev_default_loop_ptr);
		485	#else
		486	return 1;
380	# endif	487	#endif
		488	}
381		489
382	void ev_default_destroy (void); /* destroy the default loop */	490	void ev_default_destroy (void); /* destroy the default loop */
383	/* this needs to be called after fork, to duplicate the default loop */	491	/* this needs to be called after fork, to duplicate the default loop */
384	/* if you create alternative loops you have to call ev_loop_fork on them */	492	/* if you create alternative loops you have to call ev_loop_fork on them */
385	/* you can call it in either the parent or the child */	493	/* you can call it in either the parent or the child */
386	/* you can actually call it at any time, anywhere :) */	494	/* you can actually call it at any time, anywhere :) */
387	void ev_default_fork (void);	495	void ev_default_fork (void);
388		496
389	unsigned int ev_backend (EV_P);	497	#if 0
		498	/* walk (almost) all watchers in the loop of a given type, invoking the */
		499	/* callback on every such watcher. The callback might stop the watcher, */
		500	/* but do nothing else with the loop */
		501	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
390	#endif	502	#endif
		503
		504	unsigned int ev_backend (EV_P); /* backend in use by loop */
		505	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
		506	#endif /* prototypes */
391		507
392	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	508	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
393	#define EVLOOP_ONESHOT 2 /* block once only */	509	#define EVLOOP_ONESHOT 2 /* block once only */
394	#define EVUNLOOP_CANCEL 0 /* undo unloop */	510	#define EVUNLOOP_CANCEL 0 /* undo unloop */
395	#define EVUNLOOP_ONE 1 /* unloop once */	511	#define EVUNLOOP_ONE 1 /* unloop once */
396	#define EVUNLOOP_ALL 2 /* unloop all loops */	512	#define EVUNLOOP_ALL 2 /* unloop all loops */
397		513
398	#if EV_PROTOTYPES	514	#if EV_PROTOTYPES
399	void ev_loop (EV_P_ int flags);	515	void ev_loop (EV_P_ int flags);
400	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 */	516	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 */
		517
		518	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		519	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
401		520
402	/*	521	/*
403	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	522	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
404	* keeps one reference. if you have a long-runing watcher you never unregister that	523	* keeps one reference. if you have a long-runing watcher you never unregister that
405	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	524	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
406	*/	525	*/
407	void ev_ref (EV_P);	526	void ev_ref (EV_P);
408	void ev_unref (EV_P);	527	void ev_unref (EV_P);
409		528
		529	/*
		530	* stop/start the timer handling.
		531	*/
		532	void ev_suspend (EV_P);
		533	void ev_resume (EV_P);
		534
		535	/*
410	/* convinience function, wait for a single event, without registering an event watcher */	536	* convenience function, wait for a single event, without registering an event watcher
411	/* if timeout is < 0, do wait indefinitely */	537	* if timeout is < 0, do wait indefinitely
		538	*/
412	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	539	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
413	#endif	540	#endif
414		541
415	/* these may evaluate ev multiple times, and the other arguments at most once */	542	/* these may evaluate ev multiple times, and the other arguments at most once */
416	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	543	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
417	#define ev_init(ev,cb_) do { \	544	#define ev_init(ev,cb_) do { \
418	((ev_watcher )(void )(ev))->active = \	545	((ev_watcher )(void )(ev))->active = \
419	((ev_watcher )(void )(ev))->pending = \	546	((ev_watcher )(void )(ev))->pending = \
420	((ev_watcher )(void )(ev))->priority = 0; \	547	((ev_watcher )(void )(ev))->priority = 0; \
421	ev_set_cb ((ev), cb_); \	548	ev_set_cb ((ev), cb_); \
422	} while (0)	549	} while (0)
423		550
424	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	551	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
425	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	552	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
426	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	553	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
427	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	554	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
428	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	555	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
429	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)	556	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
430	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	557	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
431	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	558	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
432	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	559	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
433	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	560	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
434	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	561	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		562	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
435		563
436	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	564	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
437	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	565	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
438	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	566	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
439	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	567	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
440	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	568	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
441	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	569	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
442	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	570	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
443	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	571	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
444	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	572	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
445	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	573	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
446	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	574	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		575	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
447		576
448	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	577	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
449	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	578	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
450		579
451	#define ev_priority(ev) ((ev_watcher )(void )(ev))->priority /* rw */	580	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
452	#define ev_cb(ev) (ev)->cb /* rw */	581	#define ev_cb(ev) (ev)->cb /* rw */
453	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	582	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)
		583
		584	#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
454		585
455	#ifndef ev_set_cb	586	#ifndef ev_set_cb
456	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	587	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
457	#endif	588	#endif
458		589
459	/* stopping (enabling, adding) a watcher does nothing if it is already running */	590	/* stopping (enabling, adding) a watcher does nothing if it is already running */
460	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	591	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
461	#if EV_PROTOTYPES	592	#if EV_PROTOTYPES
…		…
463	/* feeds an event into a watcher as if the event actually occured */	594	/* feeds an event into a watcher as if the event actually occured */
464	/* accepts any ev_watcher type */	595	/* accepts any ev_watcher type */
465	void ev_feed_event (EV_P_ void *w, int revents);	596	void ev_feed_event (EV_P_ void *w, int revents);
466	void ev_feed_fd_event (EV_P_ int fd, int revents);	597	void ev_feed_fd_event (EV_P_ int fd, int revents);
467	void ev_feed_signal_event (EV_P_ int signum);	598	void ev_feed_signal_event (EV_P_ int signum);
		599	void ev_invoke (EV_P_ void *w, int revents);
		600	int ev_clear_pending (EV_P_ void *w);
468		601
469	void ev_io_start (EV_P_ ev_io *w);	602	void ev_io_start (EV_P_ ev_io *w);
470	void ev_io_stop (EV_P_ ev_io *w);	603	void ev_io_stop (EV_P_ ev_io *w);
471		604
472	void ev_timer_start (EV_P_ ev_timer *w);	605	void ev_timer_start (EV_P_ ev_timer *w);
…		…
492	void ev_stat_start (EV_P_ ev_stat *w);	625	void ev_stat_start (EV_P_ ev_stat *w);
493	void ev_stat_stop (EV_P_ ev_stat *w);	626	void ev_stat_stop (EV_P_ ev_stat *w);
494	void ev_stat_stat (EV_P_ ev_stat *w);	627	void ev_stat_stat (EV_P_ ev_stat *w);
495	# endif	628	# endif
496		629
		630	# if EV_IDLE_ENABLE
497	void ev_idle_start (EV_P_ ev_idle *w);	631	void ev_idle_start (EV_P_ ev_idle *w);
498	void ev_idle_stop (EV_P_ ev_idle *w);	632	void ev_idle_stop (EV_P_ ev_idle *w);
		633	# endif
499		634
500	void ev_prepare_start (EV_P_ ev_prepare *w);	635	void ev_prepare_start (EV_P_ ev_prepare *w);
501	void ev_prepare_stop (EV_P_ ev_prepare *w);	636	void ev_prepare_stop (EV_P_ ev_prepare *w);
502		637
503	void ev_check_start (EV_P_ ev_check *w);	638	void ev_check_start (EV_P_ ev_check *w);
…		…
513	void ev_embed_start (EV_P_ ev_embed *w);	648	void ev_embed_start (EV_P_ ev_embed *w);
514	void ev_embed_stop (EV_P_ ev_embed *w);	649	void ev_embed_stop (EV_P_ ev_embed *w);
515	void ev_embed_sweep (EV_P_ ev_embed *w);	650	void ev_embed_sweep (EV_P_ ev_embed *w);
516	# endif	651	# endif
517		652
		653	# if EV_ASYNC_ENABLE
		654	void ev_async_start (EV_P_ ev_async *w);
		655	void ev_async_stop (EV_P_ ev_async *w);
		656	void ev_async_send (EV_P_ ev_async *w);
		657	# endif
		658
518	#endif	659	#endif
519		660
520	#ifdef __cplusplus	661	#ifdef __cplusplus
521	}	662	}
522	#endif	663	#endif

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Comparing libev/ev.h (file contents): Revision 1.75 by root, Wed Nov 28 17:32:24 2007 UTC vs. Revision 1.114 by root, Wed Apr 15 19:35:53 2009 UTC

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Comparing libev/ev.h (file contents):
Revision 1.75 by root, Wed Nov 28 17:32:24 2007 UTC vs.
Revision 1.114 by root, Wed Apr 15 19:35:53 2009 UTC