[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 1.98 by root, Tue Apr 15 04:34:07 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_UC ev_default_loop_uc ()
		104	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
		105	# define EV_DEFAULT ev_default_loop (0)
		106	# define EV_DEFAULT_ EV_DEFAULT,
		107	#else
		108	# define EV_P void
		109	# define EV_P_
		110	# define EV_A
		111	# define EV_A_
		112	# define EV_DEFAULT
		113	# define EV_DEFAULT_
		114	# define EV_DEFAULT_UC
		115	# define EV_DEFAULT_UC_
		116	# undef EV_EMBED_ENABLE
		117	#endif
		118
		119	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		120	# define EV_INLINE static inline
		121	#else
		122	# define EV_INLINE static
		123	#endif
		124
		125	/*****************************************************************************/
		126
47	/* eventmask, revents, events... */	127	/* eventmask, revents, events... */
48	#define EV_UNDEF -1 /* guaranteed to be invalid */	128	#define EV_UNDEF -1L /* guaranteed to be invalid */
49	#define EV_NONE 0x00	129	#define EV_NONE 0x00L /* no events */
50	#define EV_READ 0x01	130	#define EV_READ 0x01L /* ev_io detected read will not block */
51	#define EV_WRITE 0x02	131	#define EV_WRITE 0x02L /* ev_io detected write will not block */
52	#define EV_TIMEOUT 0x000100	132	#define EV_IOFDSET 0x80L /* internal use only */
53	#define EV_PERIODIC 0x000200	133	#define EV_TIMEOUT 0x00000100L /* timer timed out */
54	#define EV_SIGNAL 0x000400	134	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
55	#define EV_IDLE 0x000800	135	#define EV_SIGNAL 0x00000400L /* signal was received */
56	#define EV_CHECK 0x001000	136	#define EV_CHILD 0x00000800L /* child/pid had status change */
57	#define EV_PREPARE 0x002000	137	#define EV_STAT 0x00001000L /* stat data changed */
58	#define EV_CHILD 0x004000	138	#define EV_IDLE 0x00002000L /* event loop is idling */
		139	#define EV_PREPARE 0x00004000L /* event loop about to poll */
		140	#define EV_CHECK 0x00008000L /* event loop finished poll */
		141	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */
		142	#define EV_FORK 0x00020000L /* event loop resumed in child */
		143	#define EV_ASYNC 0x00040000L /* async intra-loop signal */
59	#define EV_ERROR 0x800000 /* sent when an error occurs */	144	#define EV_ERROR 0x80000000L /* sent when an error occurs */
60		145
61	/* can be used to add custom fields to all watchers */	146	/* can be used to add custom fields to all watchers, while losing binary compatibility */
62	#ifndef EV_COMMON	147	#ifndef EV_COMMON
63	# define EV_COMMON void *data	148	# define EV_COMMON void *data;
64	#endif	149	#endif
65	#ifndef EV_PROTOTYPES	150	#ifndef EV_PROTOTYPES
66	# define EV_PROTOTYPES 1	151	# define EV_PROTOTYPES 1
67	#endif	152	#endif
68		153
69	#define EV_VERSION_MAJOR 1	154	#define EV_VERSION_MAJOR 3
70	#define EV_VERSION_MINOR 1	155	#define EV_VERSION_MINOR 0
		156
		157	#ifndef EV_CB_DECLARE
		158	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
		159	#endif
		160	#ifndef EV_CB_INVOKE
		161	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
		162	#endif
71		163
72	/*	164	/*
73	* struct member types:	165	* struct member types:
74	* private: you can look at them, but not change them, and they might not mean anything to you.	166	* 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	167	* ro: can be read anytime, but only changed when the watcher isn't active
…		…
78		170
79	/* shared by all watchers */	171	/* shared by all watchers */
80	#define EV_WATCHER(type) \	172	#define EV_WATCHER(type) \
81	int active; /* private */ \	173	int active; /* private */ \
82	int pending; /* private */ \	174	int pending; /* private */ \
83	int priority; /* ro */ \	175	int priority; /* private */ \
84	EV_COMMON; /* rw */ \	176	EV_COMMON /* rw */ \
85	void (cb)(struct type , int revents); /* rw / / gets invoked with an eventmask */	177	EV_CB_DECLARE (type) /* private */
86		178
87	#define EV_WATCHER_LIST(type) \	179	#define EV_WATCHER_LIST(type) \
88	EV_WATCHER (type); \	180	EV_WATCHER (type) \
89	struct type next / private */	181	struct ev_watcher_list next; / private */
90		182
91	#define EV_WATCHER_TIME(type) \	183	#define EV_WATCHER_TIME(type) \
92	EV_WATCHER (type); \	184	EV_WATCHER (type) \
93	ev_tstamp at /* private */	185	ev_tstamp at; /* private */
94		186
95	/* base class, nothing to see here unless you subclass */	187	/* base class, nothing to see here unless you subclass */
96	struct ev_watcher {	188	typedef struct ev_watcher
		189	{
97	EV_WATCHER (ev_watcher);	190	EV_WATCHER (ev_watcher)
98	};	191	} ev_watcher;
99		192
100	/* base class, nothing to see here unless you subclass */	193	/* base class, nothing to see here unless you subclass */
101	struct ev_watcher_list {	194	typedef struct ev_watcher_list
		195	{
102	EV_WATCHER_LIST (ev_watcher_list);	196	EV_WATCHER_LIST (ev_watcher_list)
103	};	197	} ev_watcher_list;
104		198
105	/* base class, nothing to see here unless you subclass */	199	/* base class, nothing to see here unless you subclass */
106	struct ev_watcher_time {	200	typedef struct ev_watcher_time
		201	{
107	EV_WATCHER_TIME (ev_watcher_time);	202	EV_WATCHER_TIME (ev_watcher_time)
108	};	203	} ev_watcher_time;
		204
		205	/* invoked when fd is either EV_READable or EV_WRITEable */
		206	/* revent EV_READ, EV_WRITE */
		207	typedef struct ev_io
		208	{
		209	EV_WATCHER_LIST (ev_io)
		210
		211	int fd; /* ro */
		212	int events; /* ro */
		213	} ev_io;
109		214
110	/* invoked after a specific time, repeatable (based on monotonic clock) */	215	/* invoked after a specific time, repeatable (based on monotonic clock) */
111	/* revent EV_TIMEOUT */	216	/* revent EV_TIMEOUT */
112	struct ev_timer	217	typedef struct ev_timer
113	{	218	{
114	EV_WATCHER_TIME (ev_timer);	219	EV_WATCHER_TIME (ev_timer)
115		220
116	ev_tstamp repeat; /* rw */	221	ev_tstamp repeat; /* rw */
117	};	222	} ev_timer;
118		223
119	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */	224	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
120	/* revent EV_PERIODIC */	225	/* revent EV_PERIODIC */
121	struct ev_periodic	226	typedef struct ev_periodic
122	{	227	{
123	EV_WATCHER_TIME (ev_periodic);	228	EV_WATCHER_TIME (ev_periodic)
124		229
		230	ev_tstamp offset; /* rw */
125	ev_tstamp interval; /* rw */	231	ev_tstamp interval; /* rw */
126	};	232	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
127		233	} 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		234
138	/* invoked when the given signal has been received */	235	/* invoked when the given signal has been received */
139	/* revent EV_SIGNAL */	236	/* revent EV_SIGNAL */
140	struct ev_signal	237	typedef struct ev_signal
141	{	238	{
142	EV_WATCHER_LIST (ev_signal);	239	EV_WATCHER_LIST (ev_signal)
143		240
144	int signum; /* ro */	241	int signum; /* ro */
145	};	242	} ev_signal;
146		243
		244	/* invoked when sigchld is received and waitpid indicates the given pid */
		245	/* revent EV_CHILD */
		246	/* does not support priorities */
		247	typedef struct ev_child
		248	{
		249	EV_WATCHER_LIST (ev_child)
		250
		251	int flags; /* private */
		252	int pid; /* ro */
		253	int rpid; /* rw, holds the received pid */
		254	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
		255	} ev_child;
		256
		257	#if EV_STAT_ENABLE
		258	/* st_nlink = 0 means missing file or other error */
		259	# ifdef _WIN32
		260	typedef struct _stati64 ev_statdata;
		261	# else
		262	typedef struct stat ev_statdata;
		263	# endif
		264
		265	/* invoked each time the stat data changes for a given path */
		266	/* revent EV_STAT */
		267	typedef struct ev_stat
		268	{
		269	EV_WATCHER_LIST (ev_stat)
		270
		271	ev_timer timer; /* private */
		272	ev_tstamp interval; /* ro */
		273	const char path; / ro */
		274	ev_statdata prev; /* ro */
		275	ev_statdata attr; /* ro */
		276
		277	int wd; /* wd for inotify, fd for kqueue */
		278	} ev_stat;
		279	#endif
		280
		281	#if EV_IDLE_ENABLE
147	/* invoked when the nothing else needs to be done, keeps the process from blocking */	282	/* invoked when the nothing else needs to be done, keeps the process from blocking */
148	/* revent EV_IDLE */	283	/* revent EV_IDLE */
149	struct ev_idle	284	typedef struct ev_idle
150	{	285	{
151	EV_WATCHER (ev_idle);	286	EV_WATCHER (ev_idle)
152	};	287	} ev_idle;
		288	#endif
153		289
154	/* invoked for each run of the mainloop, just before the blocking call */	290	/* invoked for each run of the mainloop, just before the blocking call */
155	/* you can still change events in any way you like */	291	/* you can still change events in any way you like */
156	/* revent EV_PREPARE */	292	/* revent EV_PREPARE */
157	struct ev_prepare	293	typedef struct ev_prepare
158	{	294	{
159	EV_WATCHER (ev_prepare);	295	EV_WATCHER (ev_prepare)
160	};	296	} ev_prepare;
161		297
162	/* invoked for each run of the mainloop, just after the blocking call */	298	/* invoked for each run of the mainloop, just after the blocking call */
163	/* revent EV_CHECK */	299	/* revent EV_CHECK */
164	struct ev_check	300	typedef struct ev_check
165	{	301	{
166	EV_WATCHER (ev_check);	302	EV_WATCHER (ev_check)
		303	} ev_check;
		304
		305	#if EV_FORK_ENABLE
		306	/* the callback gets invoked before check in the child process when a fork was detected */
		307	typedef struct ev_fork
		308	{
		309	EV_WATCHER (ev_fork)
		310	} ev_fork;
		311	#endif
		312
		313	#if EV_EMBED_ENABLE
		314	/* used to embed an event loop inside another */
		315	/* the callback gets invoked when the event loop has handled events, and can be 0 */
		316	typedef struct ev_embed
		317	{
		318	EV_WATCHER (ev_embed)
		319
		320	struct ev_loop other; / ro */
		321	ev_io io; /* private */
		322	ev_prepare prepare; /* private */
		323	ev_check check; /* unused */
		324	ev_timer timer; /* unused */
		325	ev_periodic periodic; /* unused */
		326	ev_idle idle; /* unused */
		327	ev_fork fork; /* unused */
		328	} ev_embed;
		329	#endif
		330
		331	#if EV_ASYNC_ENABLE
		332	/* invoked when somebody calls ev_async_send on the watcher */
		333	/* revent EV_ASYNC */
		334	typedef struct ev_async
		335	{
		336	EV_WATCHER (ev_async)
		337
		338	EV_ATOMIC_T sent; /* private */
		339	} ev_async;
		340
		341	# define ev_async_pending(w) ((w)->sent + 0)
		342	#endif
		343
		344	/* the presence of this union forces similar struct layout */
		345	union ev_any_watcher
		346	{
		347	struct ev_watcher w;
		348	struct ev_watcher_list wl;
		349
		350	struct ev_io io;
		351	struct ev_timer timer;
		352	struct ev_periodic periodic;
		353	struct ev_signal signal;
		354	struct ev_child child;
		355	#if EV_STAT_ENABLE
		356	struct ev_stat stat;
		357	#endif
		358	#if EV_IDLE_ENABLE
		359	struct ev_idle idle;
		360	#endif
		361	struct ev_prepare prepare;
		362	struct ev_check check;
		363	#if EV_FORK_ENABLE
		364	struct ev_fork fork;
		365	#endif
		366	#if EV_EMBED_ENABLE
		367	struct ev_embed embed;
		368	#endif
		369	#if EV_ASYNC_ENABLE
		370	struct ev_async async;
		371	#endif
167	};	372	};
168		373
169	/* invoked when sigchld is received and waitpid indicates the givne pid */	374	/* bits for ev_default_loop and ev_loop_new */
170	/* revent EV_CHILD */	375	/* the default */
171	struct ev_child	376	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */
172	{	377	/* flag bits */
173	EV_WATCHER_LIST (ev_child);	378	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */
		379	#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */
		380	/* method bits to be ored together */
		381	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */
		382	#define EVBACKEND_POLL 0x00000002UL /* !win */
		383	#define EVBACKEND_EPOLL 0x00000004UL /* linux */
		384	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */
		385	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */
		386	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */
174		387
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	388	#if EV_PROTOTYPES
189	extern int ev_method;
190	int ev_init (int methods); /* returns ev_method */
191	int ev_version_major (void);	389	int ev_version_major (void);
192	int ev_version_minor (void);	390	int ev_version_minor (void);
193		391
194	/* these three calls are suitable for plugging into pthread_atfork */	392	unsigned int ev_supported_backends (void);
195	void ev_fork_prepare (void);	393	unsigned int ev_recommended_backends (void);
196	void ev_fork_parent (void);	394	unsigned int ev_embeddable_backends (void);
197	void ev_fork_child (void);
198		395
199	extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */
200	ev_tstamp ev_time (void);	396	ev_tstamp ev_time (void);
		397	void ev_sleep (ev_tstamp delay); /* sleep for a while */
		398
		399	/* Sets the allocation function to use, works like realloc.
		400	* It is used to allocate and free memory.
		401	* If it returns zero when memory needs to be allocated, the library might abort
		402	* or take some potentially destructive action.
		403	* The default is your system realloc function.
		404	*/
		405	void ev_set_allocator (void (cb)(void *ptr, long size));
		406
		407	/* set the callback function to call on a
		408	* retryable syscall error
		409	* (such as failed select, poll, epoll_wait)
		410	*/
		411	void ev_set_syserr_cb (void (cb)(const char msg));
		412
		413	# if EV_MULTIPLICITY
		414	EV_INLINE struct ev_loop *
		415	ev_default_loop_uc (void)
		416	{
		417	extern struct ev_loop *ev_default_loop_ptr;
		418
		419	return ev_default_loop_ptr;
		420	}
		421
		422	/* the default loop is the only one that handles signals and child watchers */
		423	/* you can call this as often as you like */
		424	EV_INLINE struct ev_loop *
		425	ev_default_loop (unsigned int flags)
		426	{
		427	struct ev_loop *loop = ev_default_loop_uc ();
		428
		429	if (!loop)
		430	{
		431	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
		432
		433	loop = ev_default_loop_init (flags);
		434	}
		435
		436	return loop;
		437	}
		438
		439	/* create and destroy alternative loops that don't handle signals */
		440	struct ev_loop *ev_loop_new (unsigned int flags);
		441	void ev_loop_destroy (EV_P);
		442	void ev_loop_fork (EV_P);
		443
		444	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
		445
		446	# else
		447
		448	int ev_default_loop (unsigned int flags); /* returns true when successful */
		449
		450	EV_INLINE ev_tstamp
		451	ev_now (void)
		452	{
		453	extern ev_tstamp ev_rt_now;
		454
		455	return ev_rt_now;
		456	}
		457	# endif
		458
		459	EV_INLINE int
		460	ev_is_default_loop (EV_P)
		461	{
		462	#if EV_MULTIPLICITY
		463	extern struct ev_loop *ev_default_loop_ptr;
		464
		465	return !!(EV_A == ev_default_loop_ptr);
		466	#else
		467	return 1;
		468	#endif
		469	}
		470
		471	void ev_default_destroy (void); /* destroy the default loop */
		472	/* this needs to be called after fork, to duplicate the default loop */
		473	/* if you create alternative loops you have to call ev_loop_fork on them */
		474	/* you can call it in either the parent or the child */
		475	/* you can actually call it at any time, anywhere :) */
		476	void ev_default_fork (void);
		477
		478	unsigned int ev_backend (EV_P); /* backend in use by loop */
		479	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
201	#endif	480	#endif
202		481
203	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	482	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
204	#define EVLOOP_ONESHOT 2 /* block once only */	483	#define EVLOOP_ONESHOT 2 /* block once only */
		484	#define EVUNLOOP_CANCEL 0 /* undo unloop */
		485	#define EVUNLOOP_ONE 1 /* unloop once */
		486	#define EVUNLOOP_ALL 2 /* unloop all loops */
		487
205	#if EV_PROTOTYPES	488	#if EV_PROTOTYPES
206	void ev_loop (int flags);	489	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 */	490	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 */
		491
		492	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		493	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		494
		495	/*
		496	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
		497	* keeps one reference. if you have a long-runing watcher you never unregister that
		498	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
		499	*/
		500	void ev_ref (EV_P);
		501	void ev_unref (EV_P);
208		502
209	/* convinience function, wait for a single event, without registering an event watcher */	503	/* convinience function, wait for a single event, without registering an event watcher */
210	/* if timeout is < 0, do wait indefinitely */	504	/* 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);	505	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
212	#endif	506	#endif
213		507
214	/* these may evaluate ev multiple times, and the other arguments at most once */	508	/* 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 */	509	/* 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)	510	#define ev_init(ev,cb_) do { \
		511	((ev_watcher )(void )(ev))->active = \
		512	((ev_watcher )(void )(ev))->pending = \
		513	((ev_watcher )(void )(ev))->priority = 0; \
		514	ev_set_cb ((ev), cb_); \
		515	} while (0)
217		516
218	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	517	#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)	518	#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)	519	#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)	520	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		521	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		522	#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 */	523	#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 */	524	#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 */	525	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
		526	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
		527	#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)	528	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
226		529
227	#define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	530	#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)	531	#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)	532	#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)	533	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		534	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		535	#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)	536	#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)	537	#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)	538	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
		539	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
		540	#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)	541	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
235		542
		543	#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 */	544	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
		545
		546	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
		547	#define ev_cb(ev) (ev)->cb /* rw */
237	#define ev_set_priority(ev,pri) (ev)->priority = pri	548	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)
		549
		550	#ifndef ev_set_cb
		551	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
		552	#endif
238		553
239	/* stopping (enabling, adding) a watcher does nothing if it is already running */	554	/* stopping (enabling, adding) a watcher does nothing if it is already running */
240	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	555	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
241	#if EV_PROTOTYPES	556	#if EV_PROTOTYPES
		557
		558	/* feeds an event into a watcher as if the event actually occured */
		559	/* accepts any ev_watcher type */
		560	void ev_feed_event (EV_P_ void *w, int revents);
		561	void ev_feed_fd_event (EV_P_ int fd, int revents);
		562	void ev_feed_signal_event (EV_P_ int signum);
		563	void ev_invoke (EV_P_ void *w, int revents);
		564	int ev_clear_pending (EV_P_ void *w);
		565
242	void ev_io_start (struct ev_io *w);	566	void ev_io_start (EV_P_ ev_io *w);
243	void ev_io_stop (struct ev_io *w);	567	void ev_io_stop (EV_P_ ev_io *w);
244		568
245	void ev_timer_start (struct ev_timer *w);	569	void ev_timer_start (EV_P_ ev_timer *w);
246	void ev_timer_stop (struct ev_timer *w);	570	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 */	571	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
		572	void ev_timer_again (EV_P_ ev_timer *w);
248		573
		574	#if EV_PERIODIC_ENABLE
249	void ev_periodic_start (struct ev_periodic *w);	575	void ev_periodic_start (EV_P_ ev_periodic *w);
250	void ev_periodic_stop (struct ev_periodic *w);	576	void ev_periodic_stop (EV_P_ ev_periodic *w);
		577	void ev_periodic_again (EV_P_ ev_periodic *w);
		578	#endif
251		579
		580	/* only supported in the default loop */
252	void ev_signal_start (struct ev_signal *w);	581	void ev_signal_start (EV_P_ ev_signal *w);
253	void ev_signal_stop (struct ev_signal *w);	582	void ev_signal_stop (EV_P_ ev_signal *w);
254		583
		584	/* only supported in the default loop */
		585	void ev_child_start (EV_P_ ev_child *w);
		586	void ev_child_stop (EV_P_ ev_child *w);
		587
		588	# if EV_STAT_ENABLE
		589	void ev_stat_start (EV_P_ ev_stat *w);
		590	void ev_stat_stop (EV_P_ ev_stat *w);
		591	void ev_stat_stat (EV_P_ ev_stat *w);
		592	# endif
		593
		594	# if EV_IDLE_ENABLE
255	void ev_idle_start (struct ev_idle *w);	595	void ev_idle_start (EV_P_ ev_idle *w);
256	void ev_idle_stop (struct ev_idle *w);	596	void ev_idle_stop (EV_P_ ev_idle *w);
		597	# endif
257		598
258	void ev_prepare_start (struct ev_prepare *w);	599	void ev_prepare_start (EV_P_ ev_prepare *w);
259	void ev_prepare_stop (struct ev_prepare *w);	600	void ev_prepare_stop (EV_P_ ev_prepare *w);
260		601
261	void ev_check_start (struct ev_check *w);	602	void ev_check_start (EV_P_ ev_check *w);
262	void ev_check_stop (struct ev_check *w);	603	void ev_check_stop (EV_P_ ev_check *w);
263		604
264	void ev_child_start (struct ev_child *w);	605	# if EV_FORK_ENABLE
265	void ev_child_stop (struct ev_child *w);	606	void ev_fork_start (EV_P_ ev_fork *w);
		607	void ev_fork_stop (EV_P_ ev_fork *w);
		608	# endif
		609
		610	# if EV_EMBED_ENABLE
		611	/* only supported when loop to be embedded is in fact embeddable */
		612	void ev_embed_start (EV_P_ ev_embed *w);
		613	void ev_embed_stop (EV_P_ ev_embed *w);
		614	void ev_embed_sweep (EV_P_ ev_embed *w);
		615	# endif
		616
		617	# if EV_ASYNC_ENABLE
		618	void ev_async_start (EV_P_ ev_async *w);
		619	void ev_async_stop (EV_P_ ev_async *w);
		620	void ev_async_send (EV_P_ ev_async *w);
		621	# endif
		622
266	#endif	623	#endif
267		624
268	#ifdef __cplusplus	625	#ifdef __cplusplus
269	}	626	}
270	#endif	627	#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 1.98 by root, Tue Apr 15 04:34:07 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 1.98 by root, Tue Apr 15 04:34:07 2008 UTC