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

Comparing libev/ev.h (file contents):
Revision 1.23 by root, Fri Nov 2 22:03:00 2007 UTC vs.
Revision 1.91 by root, Fri Jan 25 15:45:09 2008 UTC

…		…
1	/*	1	/*
		2	* libev native API header
		3	*
2	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007 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
33	#ifdef __cplusplus	43	#ifdef __cplusplus
34	extern "C" {	44	extern "C" {
35	#endif	45	#endif
36		46
42	#endif	52	#endif
43	#ifndef EV_MAXPRI	53	#ifndef EV_MAXPRI
44	# define EV_MAXPRI +2	54	# define EV_MAXPRI +2
45	#endif	55	#endif
46		56
		57	#ifndef EV_MULTIPLICITY
		58	# define EV_MULTIPLICITY 1
		59	#endif
		60
		61	#ifndef EV_PERIODIC_ENABLE
		62	# define EV_PERIODIC_ENABLE 1
		63	#endif
		64
		65	#ifndef EV_STAT_ENABLE
		66	# define EV_STAT_ENABLE 1
		67	#endif
		68
		69	#ifndef EV_IDLE_ENABLE
		70	# define EV_IDLE_ENABLE 1
		71	#endif
		72
		73	#ifndef EV_FORK_ENABLE
		74	# define EV_FORK_ENABLE 1
		75	#endif
		76
		77	#ifndef EV_EMBED_ENABLE
		78	# define EV_EMBED_ENABLE 1
		79	#endif
		80
		81	/*****************************************************************************/
		82
		83	#if EV_STAT_ENABLE
		84	# include <sys/stat.h>
		85	#endif
		86
		87	/* support multiple event loops? */
		88	#if EV_MULTIPLICITY
		89	struct ev_loop;
		90	# define EV_P struct ev_loop *loop
		91	# define EV_P_ EV_P,
		92	# define EV_A loop
		93	# define EV_A_ EV_A,
		94	# define EV_DEFAULT ev_default_loop (0)
		95	# define EV_DEFAULT_ EV_DEFAULT,
		96	#else
		97	# define EV_P void
		98	# define EV_P_
		99	# define EV_A
		100	# define EV_A_
		101	# define EV_DEFAULT
		102	# define EV_DEFAULT_
		103
		104	# undef EV_EMBED_ENABLE
		105	#endif
		106
47	/* eventmask, revents, events... */	107	/* eventmask, revents, events... */
48	#define EV_UNDEF -1 /* guaranteed to be invalid */	108	#define EV_UNDEF -1L /* guaranteed to be invalid */
49	#define EV_NONE 0x00	109	#define EV_NONE 0x00L /* no events */
50	#define EV_READ 0x01	110	#define EV_READ 0x01L /* ev_io detected read will not block */
51	#define EV_WRITE 0x02	111	#define EV_WRITE 0x02L /* ev_io detected write will not block */
52	#define EV_TIMEOUT 0x000100	112	#define EV_IOFDSET 0x80L /* internal use only */
53	#define EV_PERIODIC 0x000200	113	#define EV_TIMEOUT 0x00000100L /* timer timed out */
54	#define EV_SIGNAL 0x000400	114	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
55	#define EV_IDLE 0x000800	115	#define EV_SIGNAL 0x00000400L /* signal was received */
56	#define EV_CHECK 0x001000	116	#define EV_CHILD 0x00000800L /* child/pid had status change */
57	#define EV_PREPARE 0x002000	117	#define EV_STAT 0x00001000L /* stat data changed */
58	#define EV_CHILD 0x004000	118	#define EV_IDLE 0x00002000L /* event loop is idling */
		119	#define EV_PREPARE 0x00004000L /* event loop about to poll */
		120	#define EV_CHECK 0x00008000L /* event loop finished poll */
		121	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */
		122	#define EV_FORK 0x00020000L /* event loop resumed in child */
59	#define EV_ERROR 0x800000 /* sent when an error occurs */	123	#define EV_ERROR 0x80000000L /* sent when an error occurs */
60		124
61	/* can be used to add custom fields to all watchers */	125	/* can be used to add custom fields to all watchers, while losing binary compatibility */
62	#ifndef EV_COMMON	126	#ifndef EV_COMMON
63	# define EV_COMMON void *data	127	# define EV_COMMON void *data;
64	#endif	128	#endif
65	#ifndef EV_PROTOTYPES	129	#ifndef EV_PROTOTYPES
66	# define EV_PROTOTYPES 1	130	# define EV_PROTOTYPES 1
67	#endif	131	#endif
68		132
69	#define EV_VERSION_MAJOR 1	133	#define EV_VERSION_MAJOR 3
70	#define EV_VERSION_MINOR 1	134	#define EV_VERSION_MINOR 0
		135
		136	#ifndef EV_CB_DECLARE
		137	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
		138	#endif
		139	#ifndef EV_CB_INVOKE
		140	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
		141	#endif
71		142
72	/*	143	/*
73	* struct member types:	144	* struct member types:
74	* private: you can look at them, but not change them, and they might not mean anything to you.	145	* private: you can look at them, but not change them, and they might not mean anything to you.
75	* ro: can be read anytime, but only changed when the watcher isn't active	146	* ro: can be read anytime, but only changed when the watcher isn't active
…		…
78		149
79	/* shared by all watchers */	150	/* shared by all watchers */
80	#define EV_WATCHER(type) \	151	#define EV_WATCHER(type) \
81	int active; /* private */ \	152	int active; /* private */ \
82	int pending; /* private */ \	153	int pending; /* private */ \
83	int priority; /* ro */ \	154	int priority; /* private */ \
84	EV_COMMON; /* rw */ \	155	EV_COMMON /* rw */ \
85	void (cb)(struct type , int revents); /* rw / / gets invoked with an eventmask */	156	EV_CB_DECLARE (type) /* private */
86		157
87	#define EV_WATCHER_LIST(type) \	158	#define EV_WATCHER_LIST(type) \
88	EV_WATCHER (type); \	159	EV_WATCHER (type) \
89	struct type next / private */	160	struct ev_watcher_list next; / private */
90		161
91	#define EV_WATCHER_TIME(type) \	162	#define EV_WATCHER_TIME(type) \
92	EV_WATCHER (type); \	163	EV_WATCHER (type) \
93	ev_tstamp at /* private */	164	ev_tstamp at; /* private */
94		165
95	/* base class, nothing to see here unless you subclass */	166	/* base class, nothing to see here unless you subclass */
96	struct ev_watcher {	167	typedef struct ev_watcher
		168	{
97	EV_WATCHER (ev_watcher);	169	EV_WATCHER (ev_watcher)
98	};	170	} ev_watcher;
99		171
100	/* base class, nothing to see here unless you subclass */	172	/* base class, nothing to see here unless you subclass */
101	struct ev_watcher_list {	173	typedef struct ev_watcher_list
		174	{
102	EV_WATCHER_LIST (ev_watcher_list);	175	EV_WATCHER_LIST (ev_watcher_list)
103	};	176	} ev_watcher_list;
104		177
105	/* base class, nothing to see here unless you subclass */	178	/* base class, nothing to see here unless you subclass */
106	struct ev_watcher_time {	179	typedef struct ev_watcher_time
		180	{
107	EV_WATCHER_TIME (ev_watcher_time);	181	EV_WATCHER_TIME (ev_watcher_time)
108	};	182	} ev_watcher_time;
		183
		184	/* invoked when fd is either EV_READable or EV_WRITEable */
		185	/* revent EV_READ, EV_WRITE */
		186	typedef struct ev_io
		187	{
		188	EV_WATCHER_LIST (ev_io)
		189
		190	int fd; /* ro */
		191	int events; /* ro */
		192	} ev_io;
109		193
110	/* invoked after a specific time, repeatable (based on monotonic clock) */	194	/* invoked after a specific time, repeatable (based on monotonic clock) */
111	/* revent EV_TIMEOUT */	195	/* revent EV_TIMEOUT */
112	struct ev_timer	196	typedef struct ev_timer
113	{	197	{
114	EV_WATCHER_TIME (ev_timer);	198	EV_WATCHER_TIME (ev_timer)
115		199
116	ev_tstamp repeat; /* rw */	200	ev_tstamp repeat; /* rw */
117	};	201	} ev_timer;
118		202
119	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */	203	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
120	/* revent EV_PERIODIC */	204	/* revent EV_PERIODIC */
121	struct ev_periodic	205	typedef struct ev_periodic
122	{	206	{
123	EV_WATCHER_TIME (ev_periodic);	207	EV_WATCHER_TIME (ev_periodic)
124		208
		209	ev_tstamp offset; /* rw */
125	ev_tstamp interval; /* rw */	210	ev_tstamp interval; /* rw */
126	};	211	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
127		212	} ev_periodic;
128	/* invoked when fd is either EV_READable or EV_WRITEable */
129	/* revent EV_READ, EV_WRITE */
130	struct ev_io
131	{
132	EV_WATCHER_LIST (ev_io);
133
134	int fd; /* ro */
135	int events; /* ro */
136	};
137		213
138	/* invoked when the given signal has been received */	214	/* invoked when the given signal has been received */
139	/* revent EV_SIGNAL */	215	/* revent EV_SIGNAL */
140	struct ev_signal	216	typedef struct ev_signal
141	{	217	{
142	EV_WATCHER_LIST (ev_signal);	218	EV_WATCHER_LIST (ev_signal)
143		219
144	int signum; /* ro */	220	int signum; /* ro */
145	};	221	} ev_signal;
146		222
		223	/* invoked when sigchld is received and waitpid indicates the given pid */
		224	/* revent EV_CHILD */
		225	/* does not support priorities */
		226	typedef struct ev_child
		227	{
		228	EV_WATCHER_LIST (ev_child)
		229
		230	int flags; /* private */
		231	int pid; /* ro */
		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
		236	#if EV_STAT_ENABLE
		237	/* st_nlink = 0 means missing file or other error */
		238	# ifdef _WIN32
		239	typedef struct _stati64 ev_statdata;
		240	# else
		241	typedef struct stat ev_statdata;
		242	# endif
		243
		244	/* invoked each time the stat data changes for a given path */
		245	/* revent EV_STAT */
		246	typedef struct ev_stat
		247	{
		248	EV_WATCHER_LIST (ev_stat)
		249
		250	ev_timer timer; /* private */
		251	ev_tstamp interval; /* ro */
		252	const char path; / ro */
		253	ev_statdata prev; /* ro */
		254	ev_statdata attr; /* ro */
		255
		256	int wd; /* wd for inotify, fd for kqueue */
		257	} ev_stat;
		258	#endif
		259
		260	#if EV_IDLE_ENABLE
147	/* invoked when the nothing else needs to be done, keeps the process from blocking */	261	/* invoked when the nothing else needs to be done, keeps the process from blocking */
148	/* revent EV_IDLE */	262	/* revent EV_IDLE */
149	struct ev_idle	263	typedef struct ev_idle
150	{	264	{
151	EV_WATCHER (ev_idle);	265	EV_WATCHER (ev_idle)
152	};	266	} ev_idle;
		267	#endif
153		268
154	/* invoked for each run of the mainloop, just before the blocking call */	269	/* invoked for each run of the mainloop, just before the blocking call */
155	/* you can still change events in any way you like */	270	/* you can still change events in any way you like */
156	/* revent EV_PREPARE */	271	/* revent EV_PREPARE */
157	struct ev_prepare	272	typedef struct ev_prepare
158	{	273	{
159	EV_WATCHER (ev_prepare);	274	EV_WATCHER (ev_prepare)
160	};	275	} ev_prepare;
161		276
162	/* invoked for each run of the mainloop, just after the blocking call */	277	/* invoked for each run of the mainloop, just after the blocking call */
163	/* revent EV_CHECK */	278	/* revent EV_CHECK */
164	struct ev_check	279	typedef struct ev_check
165	{	280	{
166	EV_WATCHER (ev_check);	281	EV_WATCHER (ev_check)
		282	} ev_check;
		283
		284	#if EV_FORK_ENABLE
		285	/* the callback gets invoked before check in the child process when a fork was detected */
		286	typedef struct ev_fork
		287	{
		288	EV_WATCHER (ev_fork)
		289	} ev_fork;
		290	#endif
		291
		292	#if EV_EMBED_ENABLE
		293	/* used to embed an event loop inside another */
		294	/* the callback gets invoked when the event loop has handled events, and can be 0 */
		295	typedef struct ev_embed
		296	{
		297	EV_WATCHER (ev_embed)
		298
		299	struct ev_loop other; / ro */
		300	ev_io io; /* private */
		301	ev_prepare prepare; /* private */
		302	ev_check check; /* unused */
		303	ev_timer timer; /* unused */
		304	ev_periodic periodic; /* unused */
		305	ev_idle idle; /* unused */
		306	ev_fork fork; /* unused */
		307	} ev_embed;
		308	#endif
		309
		310	/* the presence of this union forces similar struct layout */
		311	union ev_any_watcher
		312	{
		313	struct ev_watcher w;
		314	struct ev_watcher_list wl;
		315
		316	struct ev_io io;
		317	struct ev_timer timer;
		318	struct ev_periodic periodic;
		319	struct ev_signal signal;
		320	struct ev_child child;
		321	#if EV_STAT_ENABLE
		322	struct ev_stat stat;
		323	#endif
		324	#if EV_IDLE_ENABLE
		325	struct ev_idle idle;
		326	#endif
		327	struct ev_prepare prepare;
		328	struct ev_check check;
		329	#if EV_FORK_ENABLE
		330	struct ev_fork fork;
		331	#endif
		332	#if EV_EMBED_ENABLE
		333	struct ev_embed embed;
		334	#endif
167	};	335	};
168		336
169	/* invoked when sigchld is received and waitpid indicates the givne pid */	337	/* bits for ev_default_loop and ev_loop_new */
170	/* revent EV_CHILD */	338	/* the default */
171	struct ev_child	339	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */
172	{	340	/* flag bits */
173	EV_WATCHER_LIST (ev_child);	341	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */
		342	#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */
		343	/* method bits to be ored together */
		344	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */
		345	#define EVBACKEND_POLL 0x00000002UL /* !win */
		346	#define EVBACKEND_EPOLL 0x00000004UL /* linux */
		347	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */
		348	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */
		349	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */
174		350
175	int pid; /* ro */
176	int status; /* rw, holds the exit status, use the macros from sys/wait.h */
177	};
178
179	#define EVMETHOD_AUTO 0 /* consults environment */
180	#define EVMETHOD_SELECT 1
181	#define EVMETHOD_POLL 2
182	#define EVMETHOD_EPOLL 4
183	#define EVMETHOD_KQUEUE 8
184	#define EVMETHOD_DEVPOLL 16 /* NYI */
185	#define EVMETHOD_PORT 32 /* NYI */
186	#define EVMETHOD_ANY ~0 /* any method, do not consult env */
187	#if EV_PROTOTYPES	351	#if EV_PROTOTYPES
188	extern int ev_method;
189	int ev_init (int methods); /* returns ev_method */
190	int ev_version_major (void);	352	int ev_version_major (void);
191	int ev_version_minor (void);	353	int ev_version_minor (void);
192		354
193	/* these three calls are suitable for plugging into pthread_atfork */	355	unsigned int ev_supported_backends (void);
194	void ev_fork_prepare (void);	356	unsigned int ev_recommended_backends (void);
195	void ev_fork_parent (void);	357	unsigned int ev_embeddable_backends (void);
196	void ev_fork_child (void);
197		358
198	extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */
199	ev_tstamp ev_time (void);	359	ev_tstamp ev_time (void);
		360	void ev_sleep (ev_tstamp delay); /* sleep for a while */
		361
		362	/* Sets the allocation function to use, works like realloc.
		363	* It is used to allocate and free memory.
		364	* If it returns zero when memory needs to be allocated, the library might abort
		365	* or take some potentially destructive action.
		366	* The default is your system realloc function.
		367	*/
		368	void ev_set_allocator (void (cb)(void *ptr, long size));
		369
		370	/* set the callback function to call on a
		371	* retryable syscall error
		372	* (such as failed select, poll, epoll_wait)
		373	*/
		374	void ev_set_syserr_cb (void (cb)(const char msg));
		375
		376	# if EV_MULTIPLICITY
		377	/* the default loop is the only one that handles signals and child watchers */
		378	/* you can call this as often as you like */
		379	static struct ev_loop *
		380	ev_default_loop (unsigned int flags)
		381	{
		382	extern struct ev_loop *ev_default_loop_ptr;
		383	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
		384
		385	if (!ev_default_loop_ptr)
		386	ev_default_loop_init (flags);
		387
		388	return ev_default_loop_ptr;
		389	}
		390
		391	/* create and destroy alternative loops that don't handle signals */
		392	struct ev_loop *ev_loop_new (unsigned int flags);
		393	void ev_loop_destroy (EV_P);
		394	void ev_loop_fork (EV_P);
		395
		396	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
		397
		398	# else
		399
		400	int ev_default_loop (unsigned int flags); /* returns true when successful */
		401
		402	static ev_tstamp
		403	ev_now (void)
		404	{
		405	extern ev_tstamp ev_rt_now;
		406
		407	return ev_rt_now;
		408	}
		409	# endif
		410
		411	void ev_default_destroy (void); /* destroy the default loop */
		412	/* this needs to be called after fork, to duplicate the default loop */
		413	/* if you create alternative loops you have to call ev_loop_fork on them */
		414	/* you can call it in either the parent or the child */
		415	/* you can actually call it at any time, anywhere :) */
		416	void ev_default_fork (void);
		417
		418	unsigned int ev_backend (EV_P); /* backend in use by loop */
		419	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
200	#endif	420	#endif
201		421
202	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	422	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
203	#define EVLOOP_ONESHOT 2 /* block once only */	423	#define EVLOOP_ONESHOT 2 /* block once only */
		424	#define EVUNLOOP_CANCEL 0 /* undo unloop */
		425	#define EVUNLOOP_ONE 1 /* unloop once */
		426	#define EVUNLOOP_ALL 2 /* unloop all loops */
		427
204	#if EV_PROTOTYPES	428	#if EV_PROTOTYPES
205	void ev_loop (int flags);	429	void ev_loop (EV_P_ int flags);
206	extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */	430	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 */
		431
		432	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		433	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		434
		435	/*
		436	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
		437	* keeps one reference. if you have a long-runing watcher you never unregister that
		438	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
		439	*/
		440	void ev_ref (EV_P);
		441	void ev_unref (EV_P);
207		442
208	/* convinience function, wait for a single event, without registering an event watcher */	443	/* convinience function, wait for a single event, without registering an event watcher */
209	/* if timeout is < 0, do wait indefinitely */	444	/* if timeout is < 0, do wait indefinitely */
210	void ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	445	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
211	#endif	446	#endif
212		447
213	/* these may evaluate ev multiple times, and the other arguments at most once */	448	/* these may evaluate ev multiple times, and the other arguments at most once */
214	/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	449	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
215	#define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0)	450	#define ev_init(ev,cb_) do { \
		451	((ev_watcher )(void )(ev))->active = \
		452	((ev_watcher )(void )(ev))->pending = \
		453	((ev_watcher )(void )(ev))->priority = 0; \
		454	ev_set_cb ((ev), cb_); \
		455	} while (0)
216		456
217	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	457	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV_IOFDSET; } while (0)
218	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	458	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
219	#define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0)	459	#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
220	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	460	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		461	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		462	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
221	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	463	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
222	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	464	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
223	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	465	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
224	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	466	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
		467	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
225		468
226	#define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	469	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
227	#define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	470	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
228	#define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } while (0)	471	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
229	#define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	472	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		473	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		474	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
230	#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	475	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
231	#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	476	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
232	#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	477	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
		478	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
233	#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	479	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
234		480
		481	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
235	#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */	482	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
		483
		484	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
		485	#define ev_cb(ev) (ev)->cb /* rw */
236	#define ev_set_priority(ev,pri) (ev)->priority = pri	486	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)
		487
		488	#ifndef ev_set_cb
		489	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
		490	#endif
237		491
238	/* stopping (enabling, adding) a watcher does nothing if it is already running */	492	/* stopping (enabling, adding) a watcher does nothing if it is already running */
239	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	493	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
240	#if EV_PROTOTYPES	494	#if EV_PROTOTYPES
		495
		496	/* feeds an event into a watcher as if the event actually occured */
		497	/* accepts any ev_watcher type */
		498	void ev_feed_event (EV_P_ void *w, int revents);
		499	void ev_feed_fd_event (EV_P_ int fd, int revents);
		500	void ev_feed_signal_event (EV_P_ int signum);
		501	void ev_invoke (EV_P_ void *w, int revents);
		502	int ev_clear_pending (EV_P_ void *w);
		503
241	void ev_io_start (struct ev_io *w);	504	void ev_io_start (EV_P_ ev_io *w);
242	void ev_io_stop (struct ev_io *w);	505	void ev_io_stop (EV_P_ ev_io *w);
243		506
244	void ev_timer_start (struct ev_timer *w);	507	void ev_timer_start (EV_P_ ev_timer *w);
245	void ev_timer_stop (struct ev_timer *w);	508	void ev_timer_stop (EV_P_ ev_timer *w);
246	void ev_timer_again (struct ev_timer w); / stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	509	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
		510	void ev_timer_again (EV_P_ ev_timer *w);
247		511
		512	#if EV_PERIODIC_ENABLE
248	void ev_periodic_start (struct ev_periodic *w);	513	void ev_periodic_start (EV_P_ ev_periodic *w);
249	void ev_periodic_stop (struct ev_periodic *w);	514	void ev_periodic_stop (EV_P_ ev_periodic *w);
		515	void ev_periodic_again (EV_P_ ev_periodic *w);
		516	#endif
250		517
		518	/* only supported in the default loop */
251	void ev_signal_start (struct ev_signal *w);	519	void ev_signal_start (EV_P_ ev_signal *w);
252	void ev_signal_stop (struct ev_signal *w);	520	void ev_signal_stop (EV_P_ ev_signal *w);
253		521
		522	/* only supported in the default loop */
		523	void ev_child_start (EV_P_ ev_child *w);
		524	void ev_child_stop (EV_P_ ev_child *w);
		525
		526	# if EV_STAT_ENABLE
		527	void ev_stat_start (EV_P_ ev_stat *w);
		528	void ev_stat_stop (EV_P_ ev_stat *w);
		529	void ev_stat_stat (EV_P_ ev_stat *w);
		530	# endif
		531
		532	# if EV_IDLE_ENABLE
254	void ev_idle_start (struct ev_idle *w);	533	void ev_idle_start (EV_P_ ev_idle *w);
255	void ev_idle_stop (struct ev_idle *w);	534	void ev_idle_stop (EV_P_ ev_idle *w);
		535	# endif
256		536
257	void ev_prepare_start (struct ev_prepare *w);	537	void ev_prepare_start (EV_P_ ev_prepare *w);
258	void ev_prepare_stop (struct ev_prepare *w);	538	void ev_prepare_stop (EV_P_ ev_prepare *w);
259		539
260	void ev_check_start (struct ev_check *w);	540	void ev_check_start (EV_P_ ev_check *w);
261	void ev_check_stop (struct ev_check *w);	541	void ev_check_stop (EV_P_ ev_check *w);
262		542
263	void ev_child_start (struct ev_child *w);	543	# if EV_FORK_ENABLE
264	void ev_child_stop (struct ev_child *w);	544	void ev_fork_start (EV_P_ ev_fork *w);
		545	void ev_fork_stop (EV_P_ ev_fork *w);
		546	# endif
		547
		548	# if EV_EMBED_ENABLE
		549	/* only supported when loop to be embedded is in fact embeddable */
		550	void ev_embed_start (EV_P_ ev_embed *w);
		551	void ev_embed_stop (EV_P_ ev_embed *w);
		552	void ev_embed_sweep (EV_P_ ev_embed *w);
		553	# endif
		554
265	#endif	555	#endif
266		556
267	#ifdef __cplusplus	557	#ifdef __cplusplus
268	}	558	}
269	#endif	559	#endif

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Comparing libev/ev.h (file contents): Revision 1.23 by root, Fri Nov 2 22:03:00 2007 UTC vs. Revision 1.91 by root, Fri Jan 25 15:45:09 2008 UTC

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Comparing libev/ev.h (file contents):
Revision 1.23 by root, Fri Nov 2 22:03:00 2007 UTC vs.
Revision 1.91 by root, Fri Jan 25 15:45:09 2008 UTC