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

Comparing libev/ev.h (file contents):
Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs.
Revision 1.113 by root, Wed Apr 15 17:49:27 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
		73	#ifndef EV_FORK_ENABLE
		74	# define EV_FORK_ENABLE 1
		75	#endif
		76
59	#ifndef EV_EMBED_ENABLE	77	#ifndef EV_EMBED_ENABLE
60	# define EV_EMBED_ENABLE 1	78	# define EV_EMBED_ENABLE 1
61	#endif	79	#endif
62		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
63	/*****************************************************************************/	90	/*****************************************************************************/
64		91
65	#if EV_STAT_ENABLE	92	#if EV_STAT_ENABLE
		93	# ifdef _WIN32
		94	# include <time.h>
		95	# include <sys/types.h>
		96	# endif
66	# include <sys/stat.h>	97	# include <sys/stat.h>
67	#endif	98	#endif
68		99
69	/* support multiple event loops? */	100	/* support multiple event loops? */
70	#if EV_MULTIPLICITY	101	#if EV_MULTIPLICITY
71	struct ev_loop;	102	struct ev_loop;
72	# define EV_P struct ev_loop *loop	103	# define EV_P struct ev_loop *loop
73	# define EV_P_ EV_P,	104	# define EV_P_ EV_P,
74	# define EV_A loop	105	# define EV_A loop
75	# 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,
76	# define EV_DEFAULT_A ev_default_loop (0)	109	# define EV_DEFAULT ev_default_loop (0)
77	# define EV_DEFAULT_A_ EV_DEFAULT_A,	110	# define EV_DEFAULT_ EV_DEFAULT,
78	#else	111	#else
79	# define EV_P void	112	# define EV_P void
80	# define EV_P_	113	# define EV_P_
81	# define EV_A	114	# define EV_A
82	# define EV_A_	115	# define EV_A_
		116	# define EV_DEFAULT
83	# define EV_DEFAULT_A	117	# define EV_DEFAULT_
		118	# define EV_DEFAULT_UC
84	# define EV_DEFAULT_A_	119	# define EV_DEFAULT_UC_
85
86	# undef EV_EMBED_ENABLE	120	# undef EV_EMBED_ENABLE
87	#endif	121	#endif
88		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
89	/* eventmask, revents, events... */	131	/* eventmask, revents, events... */
90	#define EV_UNDEF -1L /* guaranteed to be invalid */	132	#define EV_UNDEF -1 /* guaranteed to be invalid */
91	#define EV_NONE 0x00L /* no events */	133	#define EV_NONE 0x00 /* no events */
92	#define EV_READ 0x01L /* ev_io detected read will not block */	134	#define EV_READ 0x01 /* ev_io detected read will not block */
93	#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 */
94	#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 */
95	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	140	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
96	#define EV_SIGNAL 0x00000400L /* signal was received */	141	#define EV_SIGNAL 0x00000400 /* signal was received */
		142	#define EV_CHILD 0x00000800 /* child/pid had status change */
		143	#define EV_STAT 0x00001000 /* stat data changed */
97	#define EV_IDLE 0x00000800L /* event loop is idling */	144	#define EV_IDLE 0x00002000 /* event loop is idling */
98	#define EV_PREPARE 0x00001000L /* event loop about to poll */	145	#define EV_PREPARE 0x00004000 /* event loop about to poll */
99	#define EV_CHECK 0x00002000L /* event loop finished poll */	146	#define EV_CHECK 0x00008000 /* event loop finished poll */
100	#define EV_CHILD 0x00004000L /* child/pid had status change */
101	#define EV_EMBED 0x00008000L /* embedded event loop needs sweep */	147	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
102	#define EV_STAT 0x00010000L /* stat data changed */	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 */
103	#define EV_ERROR 0x80000000L /* sent when an error occurs */	151	#define EV_ERROR 0x80000000 /* sent when an error occurs */
104		152
105	/* 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 */
106	#ifndef EV_COMMON	154	#ifndef EV_COMMON
107	# define EV_COMMON void *data;	155	# define EV_COMMON void *data;
108	#endif	156	#endif
109	#ifndef EV_PROTOTYPES	157	#ifndef EV_PROTOTYPES
110	# define EV_PROTOTYPES 1	158	# define EV_PROTOTYPES 1
111	#endif	159	#endif
112		160
113	#define EV_VERSION_MAJOR 1	161	#define EV_VERSION_MAJOR 3
114	#define EV_VERSION_MINOR 1	162	#define EV_VERSION_MINOR 0
115		163
116	#ifndef EV_CB_DECLARE	164	#ifndef EV_CB_DECLARE
117	# 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);
118	#endif	166	#endif
119	#ifndef EV_CB_INVOKE	167	#ifndef EV_CB_INVOKE
120	# 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))
121	#endif	169	#endif
122		170
123	/*	171	/*
124	* struct member types:	172	* struct member types:
125	* 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.
126	* 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.
127	* 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.
128	*/	186	*/
129		187
130	/* shared by all watchers */	188	/* shared by all watchers */
131	#define EV_WATCHER(type) \	189	#define EV_WATCHER(type) \
132	int active; /* private */ \	190	int active; /* private */ \
…		…
159	typedef struct ev_watcher_time	217	typedef struct ev_watcher_time
160	{	218	{
161	EV_WATCHER_TIME (ev_watcher_time)	219	EV_WATCHER_TIME (ev_watcher_time)
162	} ev_watcher_time;	220	} ev_watcher_time;
163		221
		222	/* invoked when fd is either EV_READable or EV_WRITEable */
		223	/* revent EV_READ, EV_WRITE */
		224	typedef struct ev_io
		225	{
		226	EV_WATCHER_LIST (ev_io)
		227
		228	int fd; /* ro */
		229	int events; /* ro */
		230	} ev_io;
		231
164	/* invoked after a specific time, repeatable (based on monotonic clock) */	232	/* invoked after a specific time, repeatable (based on monotonic clock) */
165	/* revent EV_TIMEOUT */	233	/* revent EV_TIMEOUT */
166	typedef struct ev_timer	234	typedef struct ev_timer
167	{	235	{
168	EV_WATCHER_TIME (ev_timer)	236	EV_WATCHER_TIME (ev_timer)
…		…
174	/* revent EV_PERIODIC */	242	/* revent EV_PERIODIC */
175	typedef struct ev_periodic	243	typedef struct ev_periodic
176	{	244	{
177	EV_WATCHER_TIME (ev_periodic)	245	EV_WATCHER_TIME (ev_periodic)
178		246
		247	ev_tstamp offset; /* rw */
179	ev_tstamp interval; /* rw */	248	ev_tstamp interval; /* rw */
180	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 */
181	} ev_periodic;	250	} ev_periodic;
182		251
183	/* invoked when fd is either EV_READable or EV_WRITEable */
184	/* revent EV_READ, EV_WRITE */
185	typedef struct ev_io
186	{
187	EV_WATCHER_LIST (ev_io)
188
189	int fd; /* ro */
190	int events; /* ro */
191	} ev_io;
192
193	/* invoked when the given signal has been received */	252	/* invoked when the given signal has been received */
194	/* revent EV_SIGNAL */	253	/* revent EV_SIGNAL */
195	typedef struct ev_signal	254	typedef struct ev_signal
196	{	255	{
197	EV_WATCHER_LIST (ev_signal)	256	EV_WATCHER_LIST (ev_signal)
198		257
199	int signum; /* ro */	258	int signum; /* ro */
200	} ev_signal;	259	} ev_signal;
201		260
		261	/* invoked when sigchld is received and waitpid indicates the given pid */
		262	/* revent EV_CHILD */
		263	/* does not support priorities */
		264	typedef struct ev_child
		265	{
		266	EV_WATCHER_LIST (ev_child)
		267
		268	int flags; /* private */
		269	int pid; /* ro */
		270	int rpid; /* rw, holds the received pid */
		271	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
		272	} ev_child;
		273
		274	#if EV_STAT_ENABLE
		275	/* st_nlink = 0 means missing file or other error */
		276	# ifdef _WIN32
		277	typedef struct _stati64 ev_statdata;
		278	# else
		279	typedef struct stat ev_statdata;
		280	# endif
		281
		282	/* invoked each time the stat data changes for a given path */
		283	/* revent EV_STAT */
		284	typedef struct ev_stat
		285	{
		286	EV_WATCHER_LIST (ev_stat)
		287
		288	ev_timer timer; /* private */
		289	ev_tstamp interval; /* ro */
		290	const char path; / ro */
		291	ev_statdata prev; /* ro */
		292	ev_statdata attr; /* ro */
		293
		294	int wd; /* wd for inotify, fd for kqueue */
		295	} ev_stat;
		296	#endif
		297
		298	#if EV_IDLE_ENABLE
202	/* 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 */
203	/* revent EV_IDLE */	300	/* revent EV_IDLE */
204	typedef struct ev_idle	301	typedef struct ev_idle
205	{	302	{
206	EV_WATCHER (ev_idle)	303	EV_WATCHER (ev_idle)
207	} ev_idle;	304	} ev_idle;
		305	#endif
208		306
209	/* 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 */
210	/* you can still change events in any way you like */	308	/* you can still change events in any way you like */
211	/* revent EV_PREPARE */	309	/* revent EV_PREPARE */
212	typedef struct ev_prepare	310	typedef struct ev_prepare
…		…
219	typedef struct ev_check	317	typedef struct ev_check
220	{	318	{
221	EV_WATCHER (ev_check)	319	EV_WATCHER (ev_check)
222	} ev_check;	320	} ev_check;
223		321
224	/* invoked when sigchld is received and waitpid indicates the given pid */	322	#if EV_FORK_ENABLE
225	/* revent EV_CHILD */	323	/* the callback gets invoked before check in the child process when a fork was detected */
226	/* does not support priorities */
227	typedef struct ev_child	324	typedef struct ev_fork
228	{	325	{
229	EV_WATCHER_LIST (ev_child)	326	EV_WATCHER (ev_fork)
230		327	} ev_fork;
231	int pid; /* ro */	328	#endif
232	int rpid; /* rw, holds the received pid */
233	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
234	} ev_child;
235		329
236	#if EV_EMBED_ENABLE	330	#if EV_EMBED_ENABLE
237	/* used to embed an event loop inside another */	331	/* used to embed an event loop inside another */
238	/* 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 */
239	typedef struct ev_embed	333	typedef struct ev_embed
240	{	334	{
241	EV_WATCHER (ev_embed)	335	EV_WATCHER (ev_embed)
242		336
243	ev_io io; /* private */
244	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 */
245	} ev_embed;	345	} ev_embed;
246	#endif	346	#endif
247		347
248	#if EV_STAT_ENABLE	348	#if EV_ASYNC_ENABLE
249	/* st_nlink = 0 means missing file or other error */	349	/* invoked when somebody calls ev_async_send on the watcher */
250	typedef struct stat ev_statdata;
251
252	/* invoked each time the stat data changes for a given path */
253	/* revent EV_STAT */	350	/* revent EV_ASYNC */
254	typedef struct ev_stat	351	typedef struct ev_async
255	{	352	{
256	EV_WATCHER (ev_stat)	353	EV_WATCHER (ev_async)
257		354
258	ev_timer timer; /* private */	355	EV_ATOMIC_T sent; /* private */
259	ev_tstamp interval; /* rw */	356	} ev_async;
260	const char path; / ro */	357
261	ev_statdata prev; /* ro */	358	# define ev_async_pending(w) ((w)->sent + 0)
262	ev_statdata attr; /* ro */
263	} ev_stat;
264	#endif	359	#endif
265		360
266	/* the presence of this union forces similar struct layout */	361	/* the presence of this union forces similar struct layout */
267	union ev_any_watcher	362	union ev_any_watcher
268	{	363	{
…		…
270	struct ev_watcher_list wl;	365	struct ev_watcher_list wl;
271		366
272	struct ev_io io;	367	struct ev_io io;
273	struct ev_timer timer;	368	struct ev_timer timer;
274	struct ev_periodic periodic;	369	struct ev_periodic periodic;
		370	struct ev_signal signal;
		371	struct ev_child child;
		372	#if EV_STAT_ENABLE
		373	struct ev_stat stat;
		374	#endif
		375	#if EV_IDLE_ENABLE
275	struct ev_idle idle;	376	struct ev_idle idle;
		377	#endif
276	struct ev_prepare prepare;	378	struct ev_prepare prepare;
277	struct ev_check check;	379	struct ev_check check;
278	struct ev_signal signal;	380	#if EV_FORK_ENABLE
279	struct ev_child child;	381	struct ev_fork fork;
		382	#endif
280	#if EV_EMBED_ENABLE	383	#if EV_EMBED_ENABLE
281	struct ev_embed embed;	384	struct ev_embed embed;
282	#endif	385	#endif
283	#if EV_STAT_ENABLE	386	#if EV_ASYNC_ENABLE
284	struct ev_stat stat;	387	struct ev_async async;
285	#endif	388	#endif
286	};	389	};
287		390
288	/* bits for ev_default_loop and ev_loop_new */	391	/* bits for ev_default_loop and ev_loop_new */
289	/* the default */	392	/* the default */
290	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	393	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
291	/* flag bits */	394	/* flag bits */
292	#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 */
293	/* method bits to be ored together */	397	/* method bits to be ored together */
294	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	398	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
295	#define EVBACKEND_POLL 0x00000002UL /* !win */	399	#define EVBACKEND_POLL 0x00000002U /* !win */
296	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	400	#define EVBACKEND_EPOLL 0x00000004U /* linux */
297	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	401	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
298	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	402	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
299	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	403	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
300		404
301	#if EV_PROTOTYPES	405	#if EV_PROTOTYPES
302	int ev_version_major (void);	406	int ev_version_major (void);
303	int ev_version_minor (void);	407	int ev_version_minor (void);
304		408
305	unsigned int ev_supported_backends (void);	409	unsigned int ev_supported_backends (void);
306	unsigned int ev_recommended_backends (void);	410	unsigned int ev_recommended_backends (void);
307	unsigned int ev_embeddable_backends (void);	411	unsigned int ev_embeddable_backends (void);
308		412
309	ev_tstamp ev_time (void);	413	ev_tstamp ev_time (void);
		414	void ev_sleep (ev_tstamp delay); /* sleep for a while */
310		415
311	/* Sets the allocation function to use, works like realloc.	416	/* Sets the allocation function to use, works like realloc.
312	* It is used to allocate and free memory.	417	* It is used to allocate and free memory.
313	* 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
314	* or take some potentially destructive action.	419	* or take some potentially destructive action.
…		…
320	* retryable syscall error	425	* retryable syscall error
321	* (such as failed select, poll, epoll_wait)	426	* (such as failed select, poll, epoll_wait)
322	*/	427	*/
323	void ev_set_syserr_cb (void (cb)(const char msg));	428	void ev_set_syserr_cb (void (cb)(const char msg));
324		429
325	# 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
326	/* 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 */
327	/* you can call this as often as you like */	440	/* you can call this as often as you like */
328	static struct ev_loop *	441	EV_INLINE struct ev_loop *
329	ev_default_loop (unsigned int flags)	442	ev_default_loop (unsigned int flags)
330	{	443	{
331	extern struct ev_loop *ev_default_loop_ptr;	444	struct ev_loop *loop = ev_default_loop_uc ();
		445
		446	if (!loop)
		447	{
332	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	448	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
333		449
334	if (!ev_default_loop_ptr)
335	ev_default_loop_init (flags);	450	loop = ev_default_loop_init (flags);
		451	}
336		452
337	return ev_default_loop_ptr;	453	return loop;
338	}	454	}
339		455
340	/* create and destroy alternative loops that don't handle signals */	456	/* create and destroy alternative loops that don't handle signals */
341	struct ev_loop *ev_loop_new (unsigned int flags);	457	struct ev_loop *ev_loop_new (unsigned int flags);
342	void ev_loop_destroy (EV_P);	458	void ev_loop_destroy (EV_P);
343	void ev_loop_fork (EV_P);	459	void ev_loop_fork (EV_P);
		460	void ev_loop_verify (EV_P);
344		461
345	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);
346		464
347	# else	465	#else
348		466
349	int ev_default_loop (unsigned int flags); /* returns true when successful */	467	int ev_default_loop (unsigned int flags); /* returns true when successful */
350		468
351	static ev_tstamp	469	EV_INLINE ev_tstamp
352	ev_now (void)	470	ev_now (void)
353	{	471	{
354	extern ev_tstamp ev_rt_now;	472	extern ev_tstamp ev_rt_now;
355		473
356	return ev_rt_now;	474	return ev_rt_now;
357	}	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;
358	# endif	487	#endif
		488	}
359		489
360	void ev_default_destroy (void); /* destroy the default loop */	490	void ev_default_destroy (void); /* destroy the default loop */
361	/* 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 */
362	/* 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 */
363	/* you can call it in either the parent or the child */	493	/* you can call it in either the parent or the child */
364	/* you can actually call it at any time, anywhere :) */	494	/* you can actually call it at any time, anywhere :) */
365	void ev_default_fork (void);	495	void ev_default_fork (void);
366		496
367	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));
368	#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 */
369		507
370	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	508	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
371	#define EVLOOP_ONESHOT 2 /* block once only */	509	#define EVLOOP_ONESHOT 2 /* block once only */
372	#define EVUNLOOP_CANCEL 0 /* undo unloop */	510	#define EVUNLOOP_CANCEL 0 /* undo unloop */
373	#define EVUNLOOP_ONE 1 /* unloop once */	511	#define EVUNLOOP_ONE 1 /* unloop once */
374	#define EVUNLOOP_ALL 2 /* unloop all loops */	512	#define EVUNLOOP_ALL 2 /* unloop all loops */
375		513
376	#if EV_PROTOTYPES	514	#if EV_PROTOTYPES
377	void ev_loop (EV_P_ int flags);	515	void ev_loop (EV_P_ int flags);
378	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 */
379		520
380	/*	521	/*
381	* 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
382	* 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
383	* 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.
384	*/	525	*/
385	void ev_ref (EV_P);	526	void ev_ref (EV_P);
386	void ev_unref (EV_P);	527	void ev_unref (EV_P);
387		528
388	/* convinience function, wait for a single event, without registering an event watcher */	529	/* convenience function, wait for a single event, without registering an event watcher */
389	/* if timeout is < 0, do wait indefinitely */	530	/* if timeout is < 0, do wait indefinitely */
390	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	531	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
391	#endif	532	#endif
392		533
393	/* these may evaluate ev multiple times, and the other arguments at most once */	534	/* these may evaluate ev multiple times, and the other arguments at most once */
394	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	535	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
395	#define ev_init(ev,cb_) do { \	536	#define ev_init(ev,cb_) do { \
396	((ev_watcher )(void )(ev))->active = \	537	((ev_watcher )(void )(ev))->active = \
397	((ev_watcher )(void )(ev))->pending = \	538	((ev_watcher )(void )(ev))->pending = \
398	((ev_watcher )(void )(ev))->priority = 0; \	539	((ev_watcher )(void )(ev))->priority = 0; \
399	ev_set_cb ((ev), cb_); \	540	ev_set_cb ((ev), cb_); \
400	} while (0)	541	} while (0)
401		542
402	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	543	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
403	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	544	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
404	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	545	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
405	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	546	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		547	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		548	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
406	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	549	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
407	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	550	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
408	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	551	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
409	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
410	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	552	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
411	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0)	553	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		554	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
412		555
413	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	556	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
414	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	557	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
415	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	558	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
416	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	559	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		560	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		561	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
417	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	562	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
418	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	563	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
419	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	564	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
420	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
421	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	565	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
422	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	566	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		567	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
423		568
424	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	569	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
425	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	570	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
426		571
427	#define ev_priority(ev) ((ev_watcher )(void )(ev))->priority /* rw */	572	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
428	#define ev_cb(ev) (ev)->cb /* rw */	573	#define ev_cb(ev) (ev)->cb /* rw */
429	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	574	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)
		575
		576	#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
430		577
431	#ifndef ev_set_cb	578	#ifndef ev_set_cb
432	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	579	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
433	#endif	580	#endif
434		581
435	/* stopping (enabling, adding) a watcher does nothing if it is already running */	582	/* stopping (enabling, adding) a watcher does nothing if it is already running */
436	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	583	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
437	#if EV_PROTOTYPES	584	#if EV_PROTOTYPES
…		…
439	/* feeds an event into a watcher as if the event actually occured */	586	/* feeds an event into a watcher as if the event actually occured */
440	/* accepts any ev_watcher type */	587	/* accepts any ev_watcher type */
441	void ev_feed_event (EV_P_ void *w, int revents);	588	void ev_feed_event (EV_P_ void *w, int revents);
442	void ev_feed_fd_event (EV_P_ int fd, int revents);	589	void ev_feed_fd_event (EV_P_ int fd, int revents);
443	void ev_feed_signal_event (EV_P_ int signum);	590	void ev_feed_signal_event (EV_P_ int signum);
		591	void ev_invoke (EV_P_ void *w, int revents);
		592	int ev_clear_pending (EV_P_ void *w);
444		593
445	void ev_io_start (EV_P_ ev_io *w);	594	void ev_io_start (EV_P_ ev_io *w);
446	void ev_io_stop (EV_P_ ev_io *w);	595	void ev_io_stop (EV_P_ ev_io *w);
447		596
448	void ev_timer_start (EV_P_ ev_timer *w);	597	void ev_timer_start (EV_P_ ev_timer *w);
…		…
454	void ev_periodic_start (EV_P_ ev_periodic *w);	603	void ev_periodic_start (EV_P_ ev_periodic *w);
455	void ev_periodic_stop (EV_P_ ev_periodic *w);	604	void ev_periodic_stop (EV_P_ ev_periodic *w);
456	void ev_periodic_again (EV_P_ ev_periodic *w);	605	void ev_periodic_again (EV_P_ ev_periodic *w);
457	#endif	606	#endif
458		607
459	void ev_idle_start (EV_P_ ev_idle *w);
460	void ev_idle_stop (EV_P_ ev_idle *w);
461
462	void ev_prepare_start (EV_P_ ev_prepare *w);
463	void ev_prepare_stop (EV_P_ ev_prepare *w);
464
465	void ev_check_start (EV_P_ ev_check *w);
466	void ev_check_stop (EV_P_ ev_check *w);
467
468	/* only supported in the default loop */	608	/* only supported in the default loop */
469	void ev_signal_start (EV_P_ ev_signal *w);	609	void ev_signal_start (EV_P_ ev_signal *w);
470	void ev_signal_stop (EV_P_ ev_signal *w);	610	void ev_signal_stop (EV_P_ ev_signal *w);
471		611
472	/* only supported in the default loop */	612	/* only supported in the default loop */
473	void ev_child_start (EV_P_ ev_child *w);	613	void ev_child_start (EV_P_ ev_child *w);
474	void ev_child_stop (EV_P_ ev_child *w);	614	void ev_child_stop (EV_P_ ev_child *w);
		615
		616	# if EV_STAT_ENABLE
		617	void ev_stat_start (EV_P_ ev_stat *w);
		618	void ev_stat_stop (EV_P_ ev_stat *w);
		619	void ev_stat_stat (EV_P_ ev_stat *w);
		620	# endif
		621
		622	# if EV_IDLE_ENABLE
		623	void ev_idle_start (EV_P_ ev_idle *w);
		624	void ev_idle_stop (EV_P_ ev_idle *w);
		625	# endif
		626
		627	void ev_prepare_start (EV_P_ ev_prepare *w);
		628	void ev_prepare_stop (EV_P_ ev_prepare *w);
		629
		630	void ev_check_start (EV_P_ ev_check *w);
		631	void ev_check_stop (EV_P_ ev_check *w);
		632
		633	# if EV_FORK_ENABLE
		634	void ev_fork_start (EV_P_ ev_fork *w);
		635	void ev_fork_stop (EV_P_ ev_fork *w);
		636	# endif
475		637
476	# if EV_EMBED_ENABLE	638	# if EV_EMBED_ENABLE
477	/* only supported when loop to be embedded is in fact embeddable */	639	/* only supported when loop to be embedded is in fact embeddable */
478	void ev_embed_start (EV_P_ ev_embed *w);	640	void ev_embed_start (EV_P_ ev_embed *w);
479	void ev_embed_stop (EV_P_ ev_embed *w);	641	void ev_embed_stop (EV_P_ ev_embed *w);
480	void ev_embed_sweep (EV_P_ ev_embed *w);	642	void ev_embed_sweep (EV_P_ ev_embed *w);
481	# endif	643	# endif
482		644
483	# if EV_STAT_ENABLE	645	# if EV_ASYNC_ENABLE
484	void ev_stat_start (EV_P_ ev_stat *w);	646	void ev_async_start (EV_P_ ev_async *w);
485	void ev_stat_stop (EV_P_ ev_stat *w);	647	void ev_async_stop (EV_P_ ev_async *w);
486	void ev_stat_stat (EV_P_ ev_stat *w);	648	void ev_async_send (EV_P_ ev_async *w);
487	# endif	649	# endif
488		650
489	#endif	651	#endif
490		652
491	#ifdef __cplusplus	653	#ifdef __cplusplus

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Comparing libev/ev.h (file contents): Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs. Revision 1.113 by root, Wed Apr 15 17:49:27 2009 UTC

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Comparing libev/ev.h (file contents):
Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs.
Revision 1.113 by root, Wed Apr 15 17:49:27 2009 UTC