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

Comparing libev/ev.h (file contents):
Revision 1.76 by root, Thu Nov 29 17:28:13 2007 UTC vs.
Revision 1.118 by root, Thu Jul 9 09:11:20 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_WALK_ENABLE
		86	# define EV_WALK_ENABLE 0 /* not yet */
		87	#endif
		88
		89	#ifndef EV_ATOMIC_T
		90	# include <signal.h>
		91	# define EV_ATOMIC_T sig_atomic_t volatile
		92	#endif
		93
67	/*****************************************************************************/	94	/*****************************************************************************/
68		95
69	#if EV_STAT_ENABLE	96	#if EV_STAT_ENABLE
		97	# ifdef _WIN32
		98	# include <time.h>
		99	# include <sys/types.h>
		100	# endif
70	# include <sys/stat.h>	101	# include <sys/stat.h>
71	#endif	102	#endif
72		103
73	/* support multiple event loops? */	104	/* support multiple event loops? */
74	#if EV_MULTIPLICITY	105	#if EV_MULTIPLICITY
75	struct ev_loop;	106	struct ev_loop;
76	# define EV_P struct ev_loop *loop	107	# define EV_P struct ev_loop *loop
77	# define EV_P_ EV_P,	108	# define EV_P_ EV_P,
78	# define EV_A loop	109	# define EV_A loop
79	# define EV_A_ EV_A,	110	# define EV_A_ EV_A,
		111	# define EV_DEFAULT_UC ev_default_loop_uc ()
		112	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
80	# define EV_DEFAULT ev_default_loop (0)	113	# define EV_DEFAULT ev_default_loop (0)
81	# define EV_DEFAULT_ EV_DEFAULT,	114	# define EV_DEFAULT_ EV_DEFAULT,
82	#else	115	#else
83	# define EV_P void	116	# define EV_P void
84	# define EV_P_	117	# define EV_P_
85	# define EV_A	118	# define EV_A
86	# define EV_A_	119	# define EV_A_
87	# define EV_DEFAULT	120	# define EV_DEFAULT
88	# define EV_DEFAULT_	121	# define EV_DEFAULT_
89		122	# define EV_DEFAULT_UC
		123	# define EV_DEFAULT_UC_
90	# undef EV_EMBED_ENABLE	124	# undef EV_EMBED_ENABLE
91	#endif	125	#endif
92		126
		127	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		128	# define EV_INLINE static inline
		129	#else
		130	# define EV_INLINE static
		131	#endif
		132
		133	/*****************************************************************************/
		134
93	/* eventmask, revents, events... */	135	/* eventmask, revents, events... */
94	#define EV_UNDEF -1L /* guaranteed to be invalid */	136	#define EV_UNDEF -1 /* guaranteed to be invalid */
95	#define EV_NONE 0x00L /* no events */	137	#define EV_NONE 0x00 /* no events */
96	#define EV_READ 0x01L /* ev_io detected read will not block */	138	#define EV_READ 0x01 /* ev_io detected read will not block */
97	#define EV_WRITE 0x02L /* ev_io detected write will not block */	139	#define EV_WRITE 0x02 /* ev_io detected write will not block */
		140	#define EV__IOFDSET 0x80 /* internal use only */
		141	#define EV_IO EV_READ /* alias for type-detection */
98	#define EV_TIMEOUT 0x00000100L /* timer timed out */	142	#define EV_TIMEOUT 0x00000100 /* timer timed out */
		143	#define EV_TIMER EV_TIMEOUT /* alias for type-detection */
99	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	144	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
100	#define EV_SIGNAL 0x00000400L /* signal was received */	145	#define EV_SIGNAL 0x00000400 /* signal was received */
101	#define EV_CHILD 0x00000800L /* child/pid had status change */	146	#define EV_CHILD 0x00000800 /* child/pid had status change */
102	#define EV_STAT 0x00001000L /* stat data changed */	147	#define EV_STAT 0x00001000 /* stat data changed */
103	#define EV_IDLE 0x00002000L /* event loop is idling */	148	#define EV_IDLE 0x00002000 /* event loop is idling */
104	#define EV_PREPARE 0x00004000L /* event loop about to poll */	149	#define EV_PREPARE 0x00004000 /* event loop about to poll */
105	#define EV_CHECK 0x00008000L /* event loop finished poll */	150	#define EV_CHECK 0x00008000 /* event loop finished poll */
106	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */	151	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
107	#define EV_FORK 0x00020000L /* event loop resumed in child */	152	#define EV_FORK 0x00020000 /* event loop resumed in child */
		153	#define EV_ASYNC 0x00040000 /* async intra-loop signal */
		154	#define EV_CUSTOM 0x01000000 /* for use by user code */
108	#define EV_ERROR 0x80000000L /* sent when an error occurs */	155	#define EV_ERROR 0x80000000 /* sent when an error occurs */
109		156
110	/* can be used to add custom fields to all watchers, while losing binary compatibility */	157	/* can be used to add custom fields to all watchers, while losing binary compatibility */
111	#ifndef EV_COMMON	158	#ifndef EV_COMMON
112	# define EV_COMMON void *data;	159	# define EV_COMMON void *data;
113	#endif	160	#endif
114	#ifndef EV_PROTOTYPES	161	#ifndef EV_PROTOTYPES
115	# define EV_PROTOTYPES 1	162	# define EV_PROTOTYPES 1
116	#endif	163	#endif
117		164
118	#define EV_VERSION_MAJOR 1	165	#define EV_VERSION_MAJOR 3
119	#define EV_VERSION_MINOR 1	166	#define EV_VERSION_MINOR 0
120		167
121	#ifndef EV_CB_DECLARE	168	#ifndef EV_CB_DECLARE
122	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	169	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
123	#endif	170	#endif
124	#ifndef EV_CB_INVOKE	171	#ifndef EV_CB_INVOKE
125	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	172	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
126	#endif	173	#endif
127		174
128	/*	175	/*
129	* struct member types:	176	* struct member types:
130	* private: you can look at them, but not change them, and they might not mean anything to you.	177	* private: you may look at them, but not change them,
		178	* and they might not mean anything to you.
131	* ro: can be read anytime, but only changed when the watcher isn't active	179	* 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	180	* rw: can be read and modified anytime, even when the watcher is active.
		181	*
		182	* some internal details that might be helpful for debugging:
		183	*
		184	* active is either 0, which means the watcher is not active,
		185	* or the array index of the watcher (periodics, timers)
		186	* or the array index + 1 (most other watchers)
		187	* or simply 1 for watchers that aren't in some array.
		188	* pending is either 0, in which case the watcher isn't,
		189	* or the array index + 1 in the pendings array.
133	*/	190	*/
		191
		192	#if EV_MINPRI == EV_MAXPRI
		193	# define EV_DECL_PRIORITY
		194	#else
		195	# define EV_DECL_PRIORITY int priority;
		196	#endif
134		197
135	/* shared by all watchers */	198	/* shared by all watchers */
136	#define EV_WATCHER(type) \	199	#define EV_WATCHER(type) \
137	int active; /* private */ \	200	int active; /* private */ \
138	int pending; /* private */ \	201	int pending; /* private */ \
139	int priority; /* private */ \	202	EV_DECL_PRIORITY /* private */ \
140	EV_COMMON /* rw */ \	203	EV_COMMON /* rw */ \
141	EV_CB_DECLARE (type) /* private */	204	EV_CB_DECLARE (type) /* private */
142		205
143	#define EV_WATCHER_LIST(type) \	206	#define EV_WATCHER_LIST(type) \
144	EV_WATCHER (type) \	207	EV_WATCHER (type) \
…		…
189	/* revent EV_PERIODIC */	252	/* revent EV_PERIODIC */
190	typedef struct ev_periodic	253	typedef struct ev_periodic
191	{	254	{
192	EV_WATCHER_TIME (ev_periodic)	255	EV_WATCHER_TIME (ev_periodic)
193		256
		257	ev_tstamp offset; /* rw */
194	ev_tstamp interval; /* rw */	258	ev_tstamp interval; /* rw */
195	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	259	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
196	} ev_periodic;	260	} ev_periodic;
197		261
198	/* invoked when the given signal has been received */	262	/* invoked when the given signal has been received */
…		…
209	/* does not support priorities */	273	/* does not support priorities */
210	typedef struct ev_child	274	typedef struct ev_child
211	{	275	{
212	EV_WATCHER_LIST (ev_child)	276	EV_WATCHER_LIST (ev_child)
213		277
		278	int flags; /* private */
214	int pid; /* ro */	279	int pid; /* ro */
215	int rpid; /* rw, holds the received pid */	280	int rpid; /* rw, holds the received pid */
216	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	281	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
217	} ev_child;	282	} ev_child;
218		283
…		…
238		303
239	int wd; /* wd for inotify, fd for kqueue */	304	int wd; /* wd for inotify, fd for kqueue */
240	} ev_stat;	305	} ev_stat;
241	#endif	306	#endif
242		307
		308	#if EV_IDLE_ENABLE
243	/* invoked when the nothing else needs to be done, keeps the process from blocking */	309	/* invoked when the nothing else needs to be done, keeps the process from blocking */
244	/* revent EV_IDLE */	310	/* revent EV_IDLE */
245	typedef struct ev_idle	311	typedef struct ev_idle
246	{	312	{
247	EV_WATCHER (ev_idle)	313	EV_WATCHER (ev_idle)
248	} ev_idle;	314	} ev_idle;
		315	#endif
249		316
250	/* invoked for each run of the mainloop, just before the blocking call */	317	/* invoked for each run of the mainloop, just before the blocking call */
251	/* you can still change events in any way you like */	318	/* you can still change events in any way you like */
252	/* revent EV_PREPARE */	319	/* revent EV_PREPARE */
253	typedef struct ev_prepare	320	typedef struct ev_prepare
…		…
275	/* the callback gets invoked when the event loop has handled events, and can be 0 */	342	/* the callback gets invoked when the event loop has handled events, and can be 0 */
276	typedef struct ev_embed	343	typedef struct ev_embed
277	{	344	{
278	EV_WATCHER (ev_embed)	345	EV_WATCHER (ev_embed)
279		346
280	ev_io io; /* private */
281	struct ev_loop loop; / ro */	347	struct ev_loop other; / ro */
		348	ev_io io; /* private */
		349	ev_prepare prepare; /* private */
		350	ev_check check; /* unused */
		351	ev_timer timer; /* unused */
		352	ev_periodic periodic; /* unused */
		353	ev_idle idle; /* unused */
		354	ev_fork fork; /* private */
282	} ev_embed;	355	} ev_embed;
		356	#endif
		357
		358	#if EV_ASYNC_ENABLE
		359	/* invoked when somebody calls ev_async_send on the watcher */
		360	/* revent EV_ASYNC */
		361	typedef struct ev_async
		362	{
		363	EV_WATCHER (ev_async)
		364
		365	EV_ATOMIC_T sent; /* private */
		366	} ev_async;
		367
		368	# define ev_async_pending(w) ((w)->sent + 0)
283	#endif	369	#endif
284		370
285	/* the presence of this union forces similar struct layout */	371	/* the presence of this union forces similar struct layout */
286	union ev_any_watcher	372	union ev_any_watcher
287	{	373	{
…		…
294	struct ev_signal signal;	380	struct ev_signal signal;
295	struct ev_child child;	381	struct ev_child child;
296	#if EV_STAT_ENABLE	382	#if EV_STAT_ENABLE
297	struct ev_stat stat;	383	struct ev_stat stat;
298	#endif	384	#endif
		385	#if EV_IDLE_ENABLE
299	struct ev_idle idle;	386	struct ev_idle idle;
		387	#endif
300	struct ev_prepare prepare;	388	struct ev_prepare prepare;
301	struct ev_check check;	389	struct ev_check check;
302	#if EV_FORK_ENABLE	390	#if EV_FORK_ENABLE
303	struct ev_fork fork;	391	struct ev_fork fork;
304	#endif	392	#endif
305	#if EV_EMBED_ENABLE	393	#if EV_EMBED_ENABLE
306	struct ev_embed embed;	394	struct ev_embed embed;
307	#endif	395	#endif
		396	#if EV_ASYNC_ENABLE
		397	struct ev_async async;
		398	#endif
308	};	399	};
309		400
310	/* bits for ev_default_loop and ev_loop_new */	401	/* bits for ev_default_loop and ev_loop_new */
311	/* the default */	402	/* the default */
312	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	403	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
313	/* flag bits */	404	/* flag bits */
314	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	405	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
315	#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */	406	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
316	/* method bits to be ored together */	407	/* method bits to be ored together */
317	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	408	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
318	#define EVBACKEND_POLL 0x00000002UL /* !win */	409	#define EVBACKEND_POLL 0x00000002U /* !win */
319	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	410	#define EVBACKEND_EPOLL 0x00000004U /* linux */
320	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	411	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
321	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	412	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
322	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	413	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
323		414
324	#if EV_PROTOTYPES	415	#if EV_PROTOTYPES
325	int ev_version_major (void);	416	int ev_version_major (void);
326	int ev_version_minor (void);	417	int ev_version_minor (void);
327		418
328	unsigned int ev_supported_backends (void);	419	unsigned int ev_supported_backends (void);
329	unsigned int ev_recommended_backends (void);	420	unsigned int ev_recommended_backends (void);
330	unsigned int ev_embeddable_backends (void);	421	unsigned int ev_embeddable_backends (void);
331		422
332	ev_tstamp ev_time (void);	423	ev_tstamp ev_time (void);
		424	void ev_sleep (ev_tstamp delay); /* sleep for a while */
333		425
334	/* Sets the allocation function to use, works like realloc.	426	/* Sets the allocation function to use, works like realloc.
335	* It is used to allocate and free memory.	427	* It is used to allocate and free memory.
336	* If it returns zero when memory needs to be allocated, the library might abort	428	* If it returns zero when memory needs to be allocated, the library might abort
337	* or take some potentially destructive action.	429	* or take some potentially destructive action.
…		…
343	* retryable syscall error	435	* retryable syscall error
344	* (such as failed select, poll, epoll_wait)	436	* (such as failed select, poll, epoll_wait)
345	*/	437	*/
346	void ev_set_syserr_cb (void (cb)(const char msg));	438	void ev_set_syserr_cb (void (cb)(const char msg));
347		439
348	# if EV_MULTIPLICITY	440	#if EV_MULTIPLICITY
		441	EV_INLINE struct ev_loop *
		442	ev_default_loop_uc (void)
		443	{
		444	extern struct ev_loop *ev_default_loop_ptr;
		445
		446	return ev_default_loop_ptr;
		447	}
		448
349	/* the default loop is the only one that handles signals and child watchers */	449	/* the default loop is the only one that handles signals and child watchers */
350	/* you can call this as often as you like */	450	/* you can call this as often as you like */
351	static struct ev_loop *	451	EV_INLINE struct ev_loop *
352	ev_default_loop (unsigned int flags)	452	ev_default_loop (unsigned int flags)
353	{	453	{
354	extern struct ev_loop *ev_default_loop_ptr;	454	struct ev_loop *loop = ev_default_loop_uc ();
		455
		456	if (!loop)
		457	{
355	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	458	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
356		459
357	if (!ev_default_loop_ptr)
358	ev_default_loop_init (flags);	460	loop = ev_default_loop_init (flags);
		461	}
359		462
360	return ev_default_loop_ptr;	463	return loop;
361	}	464	}
362		465
363	/* create and destroy alternative loops that don't handle signals */	466	/* create and destroy alternative loops that don't handle signals */
364	struct ev_loop *ev_loop_new (unsigned int flags);	467	struct ev_loop *ev_loop_new (unsigned int flags);
365	void ev_loop_destroy (EV_P);	468	void ev_loop_destroy (EV_P);
366	void ev_loop_fork (EV_P);	469	void ev_loop_fork (EV_P);
367		470
368	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	471	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
369		472
370	# else	473	#else
371		474
372	int ev_default_loop (unsigned int flags); /* returns true when successful */	475	int ev_default_loop (unsigned int flags); /* returns true when successful */
373		476
374	static ev_tstamp	477	EV_INLINE ev_tstamp
375	ev_now (void)	478	ev_now (void)
376	{	479	{
377	extern ev_tstamp ev_rt_now;	480	extern ev_tstamp ev_rt_now;
378		481
379	return ev_rt_now;	482	return ev_rt_now;
380	}	483	}
		484	#endif /* multiplicity */
		485
		486	EV_INLINE int
		487	ev_is_default_loop (EV_P)
		488	{
		489	#if EV_MULTIPLICITY
		490	extern struct ev_loop *ev_default_loop_ptr;
		491
		492	return !!(EV_A == ev_default_loop_ptr);
		493	#else
		494	return 1;
381	# endif	495	#endif
		496	}
382		497
383	void ev_default_destroy (void); /* destroy the default loop */	498	void ev_default_destroy (void); /* destroy the default loop */
384	/* this needs to be called after fork, to duplicate the default loop */	499	/* this needs to be called after fork, to duplicate the default loop */
385	/* if you create alternative loops you have to call ev_loop_fork on them */	500	/* if you create alternative loops you have to call ev_loop_fork on them */
386	/* you can call it in either the parent or the child */	501	/* you can call it in either the parent or the child */
387	/* you can actually call it at any time, anywhere :) */	502	/* you can actually call it at any time, anywhere :) */
388	void ev_default_fork (void);	503	void ev_default_fork (void);
389		504
390	unsigned int ev_backend (EV_P);	505	unsigned int ev_backend (EV_P); /* backend in use by loop */
		506	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
		507	unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
		508	void ev_loop_verify (EV_P); /* abort if loop data corrupted */
		509
		510	void ev_now_update (EV_P); /* update event loop time */
		511	void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		512
		513	#if EV_WALK_ENABLE
		514	/* walk (almost) all watchers in the loop of a given type, invoking the */
		515	/* callback on every such watcher. The callback might stop the watcher, */
		516	/* but do nothing else with the loop */
		517	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
391	#endif	518	#endif
		519
		520	#endif /* prototypes */
392		521
393	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	522	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
394	#define EVLOOP_ONESHOT 2 /* block once only */	523	#define EVLOOP_ONESHOT 2 /* block once only */
395	#define EVUNLOOP_CANCEL 0 /* undo unloop */	524	#define EVUNLOOP_CANCEL 0 /* undo unloop */
396	#define EVUNLOOP_ONE 1 /* unloop once */	525	#define EVUNLOOP_ONE 1 /* unloop once */
397	#define EVUNLOOP_ALL 2 /* unloop all loops */	526	#define EVUNLOOP_ALL 2 /* unloop all loops */
398		527
399	#if EV_PROTOTYPES	528	#if EV_PROTOTYPES
400	void ev_loop (EV_P_ int flags);	529	void ev_loop (EV_P_ int flags);
401	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 */	530	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 */
		531
		532	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		533	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
402		534
403	/*	535	/*
404	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	536	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
405	* keeps one reference. if you have a long-runing watcher you never unregister that	537	* keeps one reference. if you have a long-runing watcher you never unregister that
406	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	538	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
407	*/	539	*/
408	void ev_ref (EV_P);	540	void ev_ref (EV_P);
409	void ev_unref (EV_P);	541	void ev_unref (EV_P);
410		542
		543	/*
		544	* stop/start the timer handling.
		545	*/
		546	void ev_suspend (EV_P);
		547	void ev_resume (EV_P);
		548
		549	/*
411	/* convinience function, wait for a single event, without registering an event watcher */	550	* convenience function, wait for a single event, without registering an event watcher
412	/* if timeout is < 0, do wait indefinitely */	551	* if timeout is < 0, do wait indefinitely
		552	*/
413	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	553	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
414	#endif	554	#endif
415		555
416	/* these may evaluate ev multiple times, and the other arguments at most once */	556	/* these may evaluate ev multiple times, and the other arguments at most once */
417	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	557	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
418	#define ev_init(ev,cb_) do { \	558	#define ev_init(ev,cb_) do { \
419	((ev_watcher )(void )(ev))->active = \	559	((ev_watcher )(void )(ev))->active = \
420	((ev_watcher )(void )(ev))->pending = \	560	((ev_watcher )(void )(ev))->pending = 0; \
421	((ev_watcher )(void )(ev))->priority = 0; \	561	ev_set_priority ((ev), 0); \
422	ev_set_cb ((ev), cb_); \	562	ev_set_cb ((ev), cb_); \
423	} while (0)	563	} while (0)
424		564
425	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	565	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
426	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	566	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
427	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	567	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
428	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	568	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
429	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	569	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
430	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)	570	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
431	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	571	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
432	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	572	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
433	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	573	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
434	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	574	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
435	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	575	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		576	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
436		577
437	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	578	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
438	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	579	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
439	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	580	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
440	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	581	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
441	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	582	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
442	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	583	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
443	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	584	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
444	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	585	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
445	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	586	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
446	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	587	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
447	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	588	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		589	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
448		590
449	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	591	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
450	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	592	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
451		593
452	#define ev_priority(ev) ((ev_watcher )(void )(ev))->priority /* rw */
453	#define ev_cb(ev) (ev)->cb /* rw */	594	#define ev_cb(ev) (ev)->cb /* rw */
		595
		596	#if EV_MINPRI == EV_MAXPRI
		597	# define ev_priority(ev) ((ev), EV_MINPRI)
454	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	598	# define ev_set_priority(ev,pri) ((ev), (pri))
		599	#else
		600	# define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
		601	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		602	#endif
		603
		604	#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
455		605
456	#ifndef ev_set_cb	606	#ifndef ev_set_cb
457	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	607	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
458	#endif	608	#endif
459		609
460	/* stopping (enabling, adding) a watcher does nothing if it is already running */	610	/* stopping (enabling, adding) a watcher does nothing if it is already running */
461	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	611	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
462	#if EV_PROTOTYPES	612	#if EV_PROTOTYPES
…		…
464	/* feeds an event into a watcher as if the event actually occured */	614	/* feeds an event into a watcher as if the event actually occured */
465	/* accepts any ev_watcher type */	615	/* accepts any ev_watcher type */
466	void ev_feed_event (EV_P_ void *w, int revents);	616	void ev_feed_event (EV_P_ void *w, int revents);
467	void ev_feed_fd_event (EV_P_ int fd, int revents);	617	void ev_feed_fd_event (EV_P_ int fd, int revents);
468	void ev_feed_signal_event (EV_P_ int signum);	618	void ev_feed_signal_event (EV_P_ int signum);
		619	void ev_invoke (EV_P_ void *w, int revents);
		620	int ev_clear_pending (EV_P_ void *w);
469		621
470	void ev_io_start (EV_P_ ev_io *w);	622	void ev_io_start (EV_P_ ev_io *w);
471	void ev_io_stop (EV_P_ ev_io *w);	623	void ev_io_stop (EV_P_ ev_io *w);
472		624
473	void ev_timer_start (EV_P_ ev_timer *w);	625	void ev_timer_start (EV_P_ ev_timer *w);
…		…
493	void ev_stat_start (EV_P_ ev_stat *w);	645	void ev_stat_start (EV_P_ ev_stat *w);
494	void ev_stat_stop (EV_P_ ev_stat *w);	646	void ev_stat_stop (EV_P_ ev_stat *w);
495	void ev_stat_stat (EV_P_ ev_stat *w);	647	void ev_stat_stat (EV_P_ ev_stat *w);
496	# endif	648	# endif
497		649
		650	# if EV_IDLE_ENABLE
498	void ev_idle_start (EV_P_ ev_idle *w);	651	void ev_idle_start (EV_P_ ev_idle *w);
499	void ev_idle_stop (EV_P_ ev_idle *w);	652	void ev_idle_stop (EV_P_ ev_idle *w);
		653	# endif
500		654
501	void ev_prepare_start (EV_P_ ev_prepare *w);	655	void ev_prepare_start (EV_P_ ev_prepare *w);
502	void ev_prepare_stop (EV_P_ ev_prepare *w);	656	void ev_prepare_stop (EV_P_ ev_prepare *w);
503		657
504	void ev_check_start (EV_P_ ev_check *w);	658	void ev_check_start (EV_P_ ev_check *w);
…		…
514	void ev_embed_start (EV_P_ ev_embed *w);	668	void ev_embed_start (EV_P_ ev_embed *w);
515	void ev_embed_stop (EV_P_ ev_embed *w);	669	void ev_embed_stop (EV_P_ ev_embed *w);
516	void ev_embed_sweep (EV_P_ ev_embed *w);	670	void ev_embed_sweep (EV_P_ ev_embed *w);
517	# endif	671	# endif
518		672
		673	# if EV_ASYNC_ENABLE
		674	void ev_async_start (EV_P_ ev_async *w);
		675	void ev_async_stop (EV_P_ ev_async *w);
		676	void ev_async_send (EV_P_ ev_async *w);
		677	# endif
		678
519	#endif	679	#endif
520		680
521	#ifdef __cplusplus	681	#ifdef __cplusplus
522	}	682	}
523	#endif	683	#endif

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Comparing libev/ev.h (file contents): Revision 1.76 by root, Thu Nov 29 17:28:13 2007 UTC vs. Revision 1.118 by root, Thu Jul 9 09:11:20 2009 UTC

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Comparing libev/ev.h (file contents):
Revision 1.76 by root, Thu Nov 29 17:28:13 2007 UTC vs.
Revision 1.118 by root, Thu Jul 9 09:11:20 2009 UTC