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

Comparing libev/ev.h (file contents):
Revision 1.24 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.95 by root, Wed Apr 2 06:34:50 2008 UTC

…		…
1	/*	1	/*
		2	* libev native API header
		3	*
2	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008 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	#ifndef EV_ASYNC_ENABLE
		82	# define EV_ASYNC_ENABLE 1
		83	#endif
		84
		85	#ifndef EV_ATOMIC_T
		86	# include <signal.h>
		87	# define EV_ATOMIC_T sig_atomic_t volatile
		88	#endif
		89
		90	/*****************************************************************************/
		91
		92	#if EV_STAT_ENABLE
		93	# include <sys/stat.h>
		94	#endif
		95
		96	/* support multiple event loops? */
		97	#if EV_MULTIPLICITY
		98	struct ev_loop;
		99	# define EV_P struct ev_loop *loop
		100	# define EV_P_ EV_P,
		101	# define EV_A loop
		102	# define EV_A_ EV_A,
		103	# define EV_DEFAULT ev_default_loop (0)
		104	# define EV_DEFAULT_ EV_DEFAULT,
		105	#else
		106	# define EV_P void
		107	# define EV_P_
		108	# define EV_A
		109	# define EV_A_
		110	# define EV_DEFAULT
		111	# define EV_DEFAULT_
		112
		113	# undef EV_EMBED_ENABLE
		114	#endif
		115
47	/* eventmask, revents, events... */	116	/* eventmask, revents, events... */
48	#define EV_UNDEF -1 /* guaranteed to be invalid */	117	#define EV_UNDEF -1L /* guaranteed to be invalid */
49	#define EV_NONE 0x00	118	#define EV_NONE 0x00L /* no events */
50	#define EV_READ 0x01	119	#define EV_READ 0x01L /* ev_io detected read will not block */
51	#define EV_WRITE 0x02	120	#define EV_WRITE 0x02L /* ev_io detected write will not block */
52	#define EV_TIMEOUT 0x000100	121	#define EV_IOFDSET 0x80L /* internal use only */
53	#define EV_PERIODIC 0x000200	122	#define EV_TIMEOUT 0x00000100L /* timer timed out */
54	#define EV_SIGNAL 0x000400	123	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
55	#define EV_IDLE 0x000800	124	#define EV_SIGNAL 0x00000400L /* signal was received */
56	#define EV_CHECK 0x001000	125	#define EV_CHILD 0x00000800L /* child/pid had status change */
57	#define EV_PREPARE 0x002000	126	#define EV_STAT 0x00001000L /* stat data changed */
58	#define EV_CHILD 0x004000	127	#define EV_IDLE 0x00002000L /* event loop is idling */
		128	#define EV_PREPARE 0x00004000L /* event loop about to poll */
		129	#define EV_CHECK 0x00008000L /* event loop finished poll */
		130	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */
		131	#define EV_FORK 0x00020000L /* event loop resumed in child */
		132	#define EV_ASYNC 0x00040000L /* async intra-loop signal */
59	#define EV_ERROR 0x800000 /* sent when an error occurs */	133	#define EV_ERROR 0x80000000L /* sent when an error occurs */
60		134
61	/* can be used to add custom fields to all watchers */	135	/* can be used to add custom fields to all watchers, while losing binary compatibility */
62	#ifndef EV_COMMON	136	#ifndef EV_COMMON
63	# define EV_COMMON void *data	137	# define EV_COMMON void *data;
64	#endif	138	#endif
65	#ifndef EV_PROTOTYPES	139	#ifndef EV_PROTOTYPES
66	# define EV_PROTOTYPES 1	140	# define EV_PROTOTYPES 1
67	#endif	141	#endif
68		142
69	#define EV_VERSION_MAJOR 1	143	#define EV_VERSION_MAJOR 3
70	#define EV_VERSION_MINOR 1	144	#define EV_VERSION_MINOR 0
		145
		146	#ifndef EV_CB_DECLARE
		147	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
		148	#endif
		149	#ifndef EV_CB_INVOKE
		150	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
		151	#endif
71		152
72	/*	153	/*
73	* struct member types:	154	* struct member types:
74	* private: you can look at them, but not change them, and they might not mean anything to you.	155	* 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	156	* ro: can be read anytime, but only changed when the watcher isn't active
…		…
78		159
79	/* shared by all watchers */	160	/* shared by all watchers */
80	#define EV_WATCHER(type) \	161	#define EV_WATCHER(type) \
81	int active; /* private */ \	162	int active; /* private */ \
82	int pending; /* private */ \	163	int pending; /* private */ \
83	int priority; /* ro */ \	164	int priority; /* private */ \
84	EV_COMMON; /* rw */ \	165	EV_COMMON /* rw */ \
85	void (cb)(struct type , int revents); /* rw / / gets invoked with an eventmask */	166	EV_CB_DECLARE (type) /* private */
86		167
87	#define EV_WATCHER_LIST(type) \	168	#define EV_WATCHER_LIST(type) \
88	EV_WATCHER (type); \	169	EV_WATCHER (type) \
89	struct type next / private */	170	struct ev_watcher_list next; / private */
90		171
91	#define EV_WATCHER_TIME(type) \	172	#define EV_WATCHER_TIME(type) \
92	EV_WATCHER (type); \	173	EV_WATCHER (type) \
93	ev_tstamp at /* private */	174	ev_tstamp at; /* private */
94		175
95	/* base class, nothing to see here unless you subclass */	176	/* base class, nothing to see here unless you subclass */
96	struct ev_watcher {	177	typedef struct ev_watcher
		178	{
97	EV_WATCHER (ev_watcher);	179	EV_WATCHER (ev_watcher)
98	};	180	} ev_watcher;
99		181
100	/* base class, nothing to see here unless you subclass */	182	/* base class, nothing to see here unless you subclass */
101	struct ev_watcher_list {	183	typedef struct ev_watcher_list
		184	{
102	EV_WATCHER_LIST (ev_watcher_list);	185	EV_WATCHER_LIST (ev_watcher_list)
103	};	186	} ev_watcher_list;
104		187
105	/* base class, nothing to see here unless you subclass */	188	/* base class, nothing to see here unless you subclass */
106	struct ev_watcher_time {	189	typedef struct ev_watcher_time
		190	{
107	EV_WATCHER_TIME (ev_watcher_time);	191	EV_WATCHER_TIME (ev_watcher_time)
108	};	192	} ev_watcher_time;
		193
		194	/* invoked when fd is either EV_READable or EV_WRITEable */
		195	/* revent EV_READ, EV_WRITE */
		196	typedef struct ev_io
		197	{
		198	EV_WATCHER_LIST (ev_io)
		199
		200	int fd; /* ro */
		201	int events; /* ro */
		202	} ev_io;
109		203
110	/* invoked after a specific time, repeatable (based on monotonic clock) */	204	/* invoked after a specific time, repeatable (based on monotonic clock) */
111	/* revent EV_TIMEOUT */	205	/* revent EV_TIMEOUT */
112	struct ev_timer	206	typedef struct ev_timer
113	{	207	{
114	EV_WATCHER_TIME (ev_timer);	208	EV_WATCHER_TIME (ev_timer)
115		209
116	ev_tstamp repeat; /* rw */	210	ev_tstamp repeat; /* rw */
117	};	211	} ev_timer;
118		212
119	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */	213	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
120	/* revent EV_PERIODIC */	214	/* revent EV_PERIODIC */
121	struct ev_periodic	215	typedef struct ev_periodic
122	{	216	{
123	EV_WATCHER_TIME (ev_periodic);	217	EV_WATCHER_TIME (ev_periodic)
124		218
		219	ev_tstamp offset; /* rw */
125	ev_tstamp interval; /* rw */	220	ev_tstamp interval; /* rw */
126	};	221	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
127		222	} 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		223
138	/* invoked when the given signal has been received */	224	/* invoked when the given signal has been received */
139	/* revent EV_SIGNAL */	225	/* revent EV_SIGNAL */
140	struct ev_signal	226	typedef struct ev_signal
141	{	227	{
142	EV_WATCHER_LIST (ev_signal);	228	EV_WATCHER_LIST (ev_signal)
143		229
144	int signum; /* ro */	230	int signum; /* ro */
145	};	231	} ev_signal;
146		232
		233	/* invoked when sigchld is received and waitpid indicates the given pid */
		234	/* revent EV_CHILD */
		235	/* does not support priorities */
		236	typedef struct ev_child
		237	{
		238	EV_WATCHER_LIST (ev_child)
		239
		240	int flags; /* private */
		241	int pid; /* ro */
		242	int rpid; /* rw, holds the received pid */
		243	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
		244	} ev_child;
		245
		246	#if EV_STAT_ENABLE
		247	/* st_nlink = 0 means missing file or other error */
		248	# ifdef _WIN32
		249	typedef struct _stati64 ev_statdata;
		250	# else
		251	typedef struct stat ev_statdata;
		252	# endif
		253
		254	/* invoked each time the stat data changes for a given path */
		255	/* revent EV_STAT */
		256	typedef struct ev_stat
		257	{
		258	EV_WATCHER_LIST (ev_stat)
		259
		260	ev_timer timer; /* private */
		261	ev_tstamp interval; /* ro */
		262	const char path; / ro */
		263	ev_statdata prev; /* ro */
		264	ev_statdata attr; /* ro */
		265
		266	int wd; /* wd for inotify, fd for kqueue */
		267	} ev_stat;
		268	#endif
		269
		270	#if EV_IDLE_ENABLE
147	/* invoked when the nothing else needs to be done, keeps the process from blocking */	271	/* invoked when the nothing else needs to be done, keeps the process from blocking */
148	/* revent EV_IDLE */	272	/* revent EV_IDLE */
149	struct ev_idle	273	typedef struct ev_idle
150	{	274	{
151	EV_WATCHER (ev_idle);	275	EV_WATCHER (ev_idle)
152	};	276	} ev_idle;
		277	#endif
153		278
154	/* invoked for each run of the mainloop, just before the blocking call */	279	/* invoked for each run of the mainloop, just before the blocking call */
155	/* you can still change events in any way you like */	280	/* you can still change events in any way you like */
156	/* revent EV_PREPARE */	281	/* revent EV_PREPARE */
157	struct ev_prepare	282	typedef struct ev_prepare
158	{	283	{
159	EV_WATCHER (ev_prepare);	284	EV_WATCHER (ev_prepare)
160	};	285	} ev_prepare;
161		286
162	/* invoked for each run of the mainloop, just after the blocking call */	287	/* invoked for each run of the mainloop, just after the blocking call */
163	/* revent EV_CHECK */	288	/* revent EV_CHECK */
164	struct ev_check	289	typedef struct ev_check
165	{	290	{
166	EV_WATCHER (ev_check);	291	EV_WATCHER (ev_check)
		292	} ev_check;
		293
		294	#if EV_FORK_ENABLE
		295	/* the callback gets invoked before check in the child process when a fork was detected */
		296	typedef struct ev_fork
		297	{
		298	EV_WATCHER (ev_fork)
		299	} ev_fork;
		300	#endif
		301
		302	#if EV_EMBED_ENABLE
		303	/* used to embed an event loop inside another */
		304	/* the callback gets invoked when the event loop has handled events, and can be 0 */
		305	typedef struct ev_embed
		306	{
		307	EV_WATCHER (ev_embed)
		308
		309	struct ev_loop other; / ro */
		310	ev_io io; /* private */
		311	ev_prepare prepare; /* private */
		312	ev_check check; /* unused */
		313	ev_timer timer; /* unused */
		314	ev_periodic periodic; /* unused */
		315	ev_idle idle; /* unused */
		316	ev_fork fork; /* unused */
		317	} ev_embed;
		318	#endif
		319
		320	#if EV_ASYNC_ENABLE
		321	/* invoked when somebody calls ev_async_send on the watcher */
		322	/* revent EV_ASYNC */
		323	typedef struct ev_async
		324	{
		325	EV_WATCHER (ev_async)
		326
		327	EV_ATOMIC_T sent; /* private */
		328	} ev_async;
		329
		330	# define ev_async_pending(w) (((w)->sent + 0)
		331	#endif
		332
		333	/* the presence of this union forces similar struct layout */
		334	union ev_any_watcher
		335	{
		336	struct ev_watcher w;
		337	struct ev_watcher_list wl;
		338
		339	struct ev_io io;
		340	struct ev_timer timer;
		341	struct ev_periodic periodic;
		342	struct ev_signal signal;
		343	struct ev_child child;
		344	#if EV_STAT_ENABLE
		345	struct ev_stat stat;
		346	#endif
		347	#if EV_IDLE_ENABLE
		348	struct ev_idle idle;
		349	#endif
		350	struct ev_prepare prepare;
		351	struct ev_check check;
		352	#if EV_FORK_ENABLE
		353	struct ev_fork fork;
		354	#endif
		355	#if EV_EMBED_ENABLE
		356	struct ev_embed embed;
		357	#endif
		358	#if EV_ASYND_ENABLE
		359	struct ev_async async;
		360	#endif
167	};	361	};
168		362
169	/* invoked when sigchld is received and waitpid indicates the givne pid */	363	/* bits for ev_default_loop and ev_loop_new */
170	/* revent EV_CHILD */	364	/* the default */
171	struct ev_child	365	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */
172	{	366	/* flag bits */
173	EV_WATCHER_LIST (ev_child);	367	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */
		368	#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */
		369	/* method bits to be ored together */
		370	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */
		371	#define EVBACKEND_POLL 0x00000002UL /* !win */
		372	#define EVBACKEND_EPOLL 0x00000004UL /* linux */
		373	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */
		374	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */
		375	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */
174		376
175	int pid; /* ro */
176	int rpid; /* rw, holds the received pid */
177	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
178	};
179
180	#define EVMETHOD_AUTO 0 /* consults environment */
181	#define EVMETHOD_SELECT 1
182	#define EVMETHOD_POLL 2
183	#define EVMETHOD_EPOLL 4
184	#define EVMETHOD_KQUEUE 8
185	#define EVMETHOD_DEVPOLL 16 /* NYI */
186	#define EVMETHOD_PORT 32 /* NYI */
187	#define EVMETHOD_ANY ~0 /* any method, do not consult env */
188	#if EV_PROTOTYPES	377	#if EV_PROTOTYPES
189	extern int ev_method;
190	int ev_init (int methods); /* returns ev_method */
191	int ev_version_major (void);	378	int ev_version_major (void);
192	int ev_version_minor (void);	379	int ev_version_minor (void);
193		380
194	/* these three calls are suitable for plugging into pthread_atfork */	381	unsigned int ev_supported_backends (void);
195	void ev_fork_prepare (void);	382	unsigned int ev_recommended_backends (void);
196	void ev_fork_parent (void);	383	unsigned int ev_embeddable_backends (void);
197	void ev_fork_child (void);
198		384
199	extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */
200	ev_tstamp ev_time (void);	385	ev_tstamp ev_time (void);
		386	void ev_sleep (ev_tstamp delay); /* sleep for a while */
		387
		388	/* Sets the allocation function to use, works like realloc.
		389	* It is used to allocate and free memory.
		390	* If it returns zero when memory needs to be allocated, the library might abort
		391	* or take some potentially destructive action.
		392	* The default is your system realloc function.
		393	*/
		394	void ev_set_allocator (void (cb)(void *ptr, long size));
		395
		396	/* set the callback function to call on a
		397	* retryable syscall error
		398	* (such as failed select, poll, epoll_wait)
		399	*/
		400	void ev_set_syserr_cb (void (cb)(const char msg));
		401
		402	# if EV_MULTIPLICITY
		403	/* the default loop is the only one that handles signals and child watchers */
		404	/* you can call this as often as you like */
		405	static struct ev_loop *
		406	ev_default_loop (unsigned int flags)
		407	{
		408	extern struct ev_loop *ev_default_loop_ptr;
		409	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
		410
		411	if (!ev_default_loop_ptr)
		412	ev_default_loop_init (flags);
		413
		414	return ev_default_loop_ptr;
		415	}
		416
		417	/* create and destroy alternative loops that don't handle signals */
		418	struct ev_loop *ev_loop_new (unsigned int flags);
		419	void ev_loop_destroy (EV_P);
		420	void ev_loop_fork (EV_P);
		421
		422	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
		423
		424	# else
		425
		426	int ev_default_loop (unsigned int flags); /* returns true when successful */
		427
		428	static ev_tstamp
		429	ev_now (void)
		430	{
		431	extern ev_tstamp ev_rt_now;
		432
		433	return ev_rt_now;
		434	}
		435	# endif
		436
		437	static int
		438	ev_is_default_loop (EV_P)
		439	{
		440	#if EV_MULTIPLICITY
		441	extern struct ev_loop *ev_default_loop_ptr;
		442
		443	return !!(EV_A == ev_default_loop_ptr);
		444	#else
		445	return 1;
		446	#endif
		447	}
		448
		449	void ev_default_destroy (void); /* destroy the default loop */
		450	/* this needs to be called after fork, to duplicate the default loop */
		451	/* if you create alternative loops you have to call ev_loop_fork on them */
		452	/* you can call it in either the parent or the child */
		453	/* you can actually call it at any time, anywhere :) */
		454	void ev_default_fork (void);
		455
		456	unsigned int ev_backend (EV_P); /* backend in use by loop */
		457	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
201	#endif	458	#endif
202		459
203	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	460	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
204	#define EVLOOP_ONESHOT 2 /* block once only */	461	#define EVLOOP_ONESHOT 2 /* block once only */
		462	#define EVUNLOOP_CANCEL 0 /* undo unloop */
		463	#define EVUNLOOP_ONE 1 /* unloop once */
		464	#define EVUNLOOP_ALL 2 /* unloop all loops */
		465
205	#if EV_PROTOTYPES	466	#if EV_PROTOTYPES
206	void ev_loop (int flags);	467	void ev_loop (EV_P_ int flags);
207	extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */	468	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 */
		469
		470	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		471	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		472
		473	/*
		474	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
		475	* keeps one reference. if you have a long-runing watcher you never unregister that
		476	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
		477	*/
		478	void ev_ref (EV_P);
		479	void ev_unref (EV_P);
208		480
209	/* convinience function, wait for a single event, without registering an event watcher */	481	/* convinience function, wait for a single event, without registering an event watcher */
210	/* if timeout is < 0, do wait indefinitely */	482	/* if timeout is < 0, do wait indefinitely */
211	void ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	483	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
212	#endif	484	#endif
213		485
214	/* these may evaluate ev multiple times, and the other arguments at most once */	486	/* these may evaluate ev multiple times, and the other arguments at most once */
215	/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	487	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
216	#define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0)	488	#define ev_init(ev,cb_) do { \
		489	((ev_watcher )(void )(ev))->active = \
		490	((ev_watcher )(void )(ev))->pending = \
		491	((ev_watcher )(void )(ev))->priority = 0; \
		492	ev_set_cb ((ev), cb_); \
		493	} while (0)
217		494
218	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	495	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV_IOFDSET; } while (0)
219	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	496	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
220	#define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0)	497	#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
221	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	498	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		499	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		500	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
222	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	501	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
223	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	502	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
224	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	503	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
		504	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
		505	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
225	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	506	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
226		507
227	#define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	508	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
228	#define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	509	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
229	#define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } while (0)	510	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
230	#define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	511	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		512	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		513	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
231	#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	514	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
232	#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	515	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
233	#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	516	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
		517	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
		518	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
234	#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	519	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
235		520
		521	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
236	#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */	522	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
		523
		524	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
		525	#define ev_cb(ev) (ev)->cb /* rw */
237	#define ev_set_priority(ev,pri) (ev)->priority = pri	526	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)
		527
		528	#ifndef ev_set_cb
		529	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
		530	#endif
238		531
239	/* stopping (enabling, adding) a watcher does nothing if it is already running */	532	/* stopping (enabling, adding) a watcher does nothing if it is already running */
240	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	533	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
241	#if EV_PROTOTYPES	534	#if EV_PROTOTYPES
		535
		536	/* feeds an event into a watcher as if the event actually occured */
		537	/* accepts any ev_watcher type */
		538	void ev_feed_event (EV_P_ void *w, int revents);
		539	void ev_feed_fd_event (EV_P_ int fd, int revents);
		540	void ev_feed_signal_event (EV_P_ int signum);
		541	void ev_invoke (EV_P_ void *w, int revents);
		542	int ev_clear_pending (EV_P_ void *w);
		543
242	void ev_io_start (struct ev_io *w);	544	void ev_io_start (EV_P_ ev_io *w);
243	void ev_io_stop (struct ev_io *w);	545	void ev_io_stop (EV_P_ ev_io *w);
244		546
245	void ev_timer_start (struct ev_timer *w);	547	void ev_timer_start (EV_P_ ev_timer *w);
246	void ev_timer_stop (struct ev_timer *w);	548	void ev_timer_stop (EV_P_ ev_timer *w);
247	void ev_timer_again (struct ev_timer w); / stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	549	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
		550	void ev_timer_again (EV_P_ ev_timer *w);
248		551
		552	#if EV_PERIODIC_ENABLE
249	void ev_periodic_start (struct ev_periodic *w);	553	void ev_periodic_start (EV_P_ ev_periodic *w);
250	void ev_periodic_stop (struct ev_periodic *w);	554	void ev_periodic_stop (EV_P_ ev_periodic *w);
		555	void ev_periodic_again (EV_P_ ev_periodic *w);
		556	#endif
251		557
		558	/* only supported in the default loop */
252	void ev_signal_start (struct ev_signal *w);	559	void ev_signal_start (EV_P_ ev_signal *w);
253	void ev_signal_stop (struct ev_signal *w);	560	void ev_signal_stop (EV_P_ ev_signal *w);
254		561
		562	/* only supported in the default loop */
		563	void ev_child_start (EV_P_ ev_child *w);
		564	void ev_child_stop (EV_P_ ev_child *w);
		565
		566	# if EV_STAT_ENABLE
		567	void ev_stat_start (EV_P_ ev_stat *w);
		568	void ev_stat_stop (EV_P_ ev_stat *w);
		569	void ev_stat_stat (EV_P_ ev_stat *w);
		570	# endif
		571
		572	# if EV_IDLE_ENABLE
255	void ev_idle_start (struct ev_idle *w);	573	void ev_idle_start (EV_P_ ev_idle *w);
256	void ev_idle_stop (struct ev_idle *w);	574	void ev_idle_stop (EV_P_ ev_idle *w);
		575	# endif
257		576
258	void ev_prepare_start (struct ev_prepare *w);	577	void ev_prepare_start (EV_P_ ev_prepare *w);
259	void ev_prepare_stop (struct ev_prepare *w);	578	void ev_prepare_stop (EV_P_ ev_prepare *w);
260		579
261	void ev_check_start (struct ev_check *w);	580	void ev_check_start (EV_P_ ev_check *w);
262	void ev_check_stop (struct ev_check *w);	581	void ev_check_stop (EV_P_ ev_check *w);
263		582
264	void ev_child_start (struct ev_child *w);	583	# if EV_FORK_ENABLE
265	void ev_child_stop (struct ev_child *w);	584	void ev_fork_start (EV_P_ ev_fork *w);
		585	void ev_fork_stop (EV_P_ ev_fork *w);
		586	# endif
		587
		588	# if EV_EMBED_ENABLE
		589	/* only supported when loop to be embedded is in fact embeddable */
		590	void ev_embed_start (EV_P_ ev_embed *w);
		591	void ev_embed_stop (EV_P_ ev_embed *w);
		592	void ev_embed_sweep (EV_P_ ev_embed *w);
		593	# endif
		594
		595	# if EV_ASYNC_ENABLE
		596	void ev_async_start (EV_P_ ev_async *w);
		597	void ev_async_stop (EV_P_ ev_async *w);
		598	void ev_async_send (EV_P_ ev_async *w);
		599	# endif
		600
266	#endif	601	#endif
267		602
268	#ifdef __cplusplus	603	#ifdef __cplusplus
269	}	604	}
270	#endif	605	#endif

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Comparing libev/ev.h (file contents): Revision 1.24 by root, Sat Nov 3 09:19:58 2007 UTC vs. Revision 1.95 by root, Wed Apr 2 06:34:50 2008 UTC

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Comparing libev/ev.h (file contents):
Revision 1.24 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.95 by root, Wed Apr 2 06:34:50 2008 UTC