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

Comparing libev/ev.h (file contents):
Revision 1.46 by root, Sat Nov 10 00:55:27 2007 UTC vs.
Revision 1.110 by root, Wed Mar 4 14:33:10 2009 UTC

…		…
1	/*	1	/*
		2	* libev native API header
		3	*
2	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
3	* All rights reserved.	5	* All rights reserved.
4	*	6	*
5	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without modifica-
6	* modification, are permitted provided that the following conditions are	8	* tion, are permitted provided that the following conditions are met:
7	* met:	9	*
		10	* 1. Redistributions of source code must retain the above copyright notice,
		11	* this list of conditions and the following disclaimer.
		12	*
		13	* 2. Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		22	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		23	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		24	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		25	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		26	* OF THE POSSIBILITY OF SUCH DAMAGE.
8	*	27	*
9	* * Redistributions of source code must retain the above copyright	28	* Alternatively, the contents of this file may be used under the terms of
10	* notice, this list of conditions and the following disclaimer.	29	* the GNU General Public License ("GPL") version 2 or any later version,
11	*	30	* in which case the provisions of the GPL are applicable instead of
12	* * Redistributions in binary form must reproduce the above	31	* the above. If you wish to allow the use of your version of this file
13	* copyright notice, this list of conditions and the following	32	* only under the terms of the GPL and not to allow others to use your
14	* disclaimer in the documentation and/or other materials provided	33	* version of this file under the BSD license, indicate your decision
15	* with the distribution.	34	* by deleting the provisions above and replace them with the notice
16	*	35	* and other provisions required by the GPL. If you do not delete the
17	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	36	* provisions above, a recipient may use your version of this file under
18	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT	37	* either the BSD or the GPL.
19	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	38	*/
29		39
30	#ifndef EV_H__	40	#ifndef EV_H__
31	#define EV_H__	41	#define EV_H__
32		42
44	# define EV_MAXPRI +2	54	# define EV_MAXPRI +2
45	#endif	55	#endif
46		56
47	#ifndef EV_MULTIPLICITY	57	#ifndef EV_MULTIPLICITY
48	# define EV_MULTIPLICITY 1	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	# ifdef _WIN32
		94	# include <time.h>
		95	# include <sys/types.h>
		96	# endif
		97	# include <sys/stat.h>
49	#endif	98	#endif
50		99
51	/* support multiple event loops? */	100	/* support multiple event loops? */
52	#if EV_MULTIPLICITY	101	#if EV_MULTIPLICITY
53	struct ev_loop;	102	struct ev_loop;
54	# define EV_P struct ev_loop *loop	103	# define EV_P struct ev_loop *loop
55	# define EV_P_ EV_P,	104	# define EV_P_ EV_P,
56	# define EV_A loop	105	# define EV_A loop
57	# define EV_A_ EV_A,	106	# define EV_A_ EV_A,
		107	# define EV_DEFAULT_UC ev_default_loop_uc ()
		108	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
		109	# define EV_DEFAULT ev_default_loop (0)
		110	# define EV_DEFAULT_ EV_DEFAULT,
58	#else	111	#else
59	# define EV_P void	112	# define EV_P void
60	# define EV_P_	113	# define EV_P_
61	# define EV_A	114	# define EV_A
62	# define EV_A_	115	# define EV_A_
		116	# define EV_DEFAULT
		117	# define EV_DEFAULT_
		118	# define EV_DEFAULT_UC
		119	# define EV_DEFAULT_UC_
		120	# undef EV_EMBED_ENABLE
63	#endif	121	#endif
		122
		123	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		124	# define EV_INLINE static inline
		125	#else
		126	# define EV_INLINE static
		127	#endif
		128
		129	/*****************************************************************************/
64		130
65	/* eventmask, revents, events... */	131	/* eventmask, revents, events... */
66	#define EV_UNDEF -1 /* guaranteed to be invalid */	132	#define EV_UNDEF -1 /* guaranteed to be invalid */
67	#define EV_NONE 0x00	133	#define EV_NONE 0x00 /* no events */
68	#define EV_READ 0x01	134	#define EV_READ 0x01 /* ev_io detected read will not block */
69	#define EV_WRITE 0x02	135	#define EV_WRITE 0x02 /* ev_io detected write will not block */
70	#define EV_TIMEOUT 0x000100	136	#define EV_IOFDSET 0x80 /* internal use only */
71	#define EV_PERIODIC 0x000200	137	#define EV_TIMEOUT 0x00000100 /* timer timed out */
72	#define EV_SIGNAL 0x000400	138	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
73	#define EV_IDLE 0x000800	139	#define EV_SIGNAL 0x00000400 /* signal was received */
74	#define EV_CHECK 0x001000	140	#define EV_CHILD 0x00000800 /* child/pid had status change */
75	#define EV_PREPARE 0x002000	141	#define EV_STAT 0x00001000 /* stat data changed */
76	#define EV_CHILD 0x004000	142	#define EV_IDLE 0x00002000 /* event loop is idling */
		143	#define EV_PREPARE 0x00004000 /* event loop about to poll */
		144	#define EV_CHECK 0x00008000 /* event loop finished poll */
		145	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
		146	#define EV_FORK 0x00020000 /* event loop resumed in child */
		147	#define EV_ASYNC 0x00040000 /* async intra-loop signal */
77	#define EV_ERROR 0x800000 /* sent when an error occurs */	148	#define EV_ERROR 0x80000000 /* sent when an error occurs */
78		149
79	/* can be used to add custom fields to all watchers */	150	/* can be used to add custom fields to all watchers, while losing binary compatibility */
80	#ifndef EV_COMMON	151	#ifndef EV_COMMON
81	# define EV_COMMON void *data	152	# define EV_COMMON void *data;
82	#endif	153	#endif
83	#ifndef EV_PROTOTYPES	154	#ifndef EV_PROTOTYPES
84	# define EV_PROTOTYPES 1	155	# define EV_PROTOTYPES 1
85	#endif	156	#endif
86		157
87	#define EV_VERSION_MAJOR 1	158	#define EV_VERSION_MAJOR 3
88	#define EV_VERSION_MINOR 1	159	#define EV_VERSION_MINOR 0
89		160
90	#ifndef EV_CB_DECLARE	161	#ifndef EV_CB_DECLARE
91	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	162	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
92	#endif	163	#endif
93	#ifndef EV_CB_INVOKE	164	#ifndef EV_CB_INVOKE
94	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	165	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
95	#endif	166	#endif
96		167
97	/*	168	/*
98	* struct member types:	169	* struct member types:
99	* private: you can look at them, but not change them, and they might not mean anything to you.	170	* private: you may look at them, but not change them,
		171	* and they might not mean anything to you.
100	* ro: can be read anytime, but only changed when the watcher isn't active	172	* ro: can be read anytime, but only changed when the watcher isn't active.
101	* rw: can be read and modified anytime, even when the watcher is active	173	* rw: can be read and modified anytime, even when the watcher is active.
		174	*
		175	* some internal details that might be helpful for debugging:
		176	*
		177	* active is either 0, which means the watcher is not active,
		178	* or the array index of the watcher (periodics, timers)
		179	* or the array index + 1 (most other watchers)
		180	* or simply 1 for watchers that aren't in some array.
		181	* pending is either 0, in which case the watcher isn't,
		182	* or the array index + 1 in the pendings array.
102	*/	183	*/
103		184
104	/* shared by all watchers */	185	/* shared by all watchers */
105	#define EV_WATCHER(type) \	186	#define EV_WATCHER(type) \
106	int active; /* private */ \	187	int active; /* private */ \
107	int pending; /* private */ \	188	int pending; /* private */ \
108	int priority; /* private */ \	189	int priority; /* private */ \
109	EV_COMMON; /* rw */ \	190	EV_COMMON /* rw */ \
110	EV_CB_DECLARE (type) /* private */	191	EV_CB_DECLARE (type) /* private */
111		192
112	#define EV_WATCHER_LIST(type) \	193	#define EV_WATCHER_LIST(type) \
113	EV_WATCHER (type); \	194	EV_WATCHER (type) \
114	struct ev_watcher_list next / private */	195	struct ev_watcher_list next; / private */
115		196
116	#define EV_WATCHER_TIME(type) \	197	#define EV_WATCHER_TIME(type) \
117	EV_WATCHER (type); \	198	EV_WATCHER (type) \
118	ev_tstamp at /* private */	199	ev_tstamp at; /* private */
119		200
120	/* base class, nothing to see here unless you subclass */	201	/* base class, nothing to see here unless you subclass */
121	struct ev_watcher	202	typedef struct ev_watcher
122	{	203	{
123	EV_WATCHER (ev_watcher);	204	EV_WATCHER (ev_watcher)
124	};	205	} ev_watcher;
125		206
126	/* base class, nothing to see here unless you subclass */	207	/* base class, nothing to see here unless you subclass */
127	struct ev_watcher_list	208	typedef struct ev_watcher_list
128	{	209	{
129	EV_WATCHER_LIST (ev_watcher_list);	210	EV_WATCHER_LIST (ev_watcher_list)
130	};	211	} ev_watcher_list;
131		212
132	/* base class, nothing to see here unless you subclass */	213	/* base class, nothing to see here unless you subclass */
133	struct ev_watcher_time	214	typedef struct ev_watcher_time
134	{	215	{
135	EV_WATCHER_TIME (ev_watcher_time);	216	EV_WATCHER_TIME (ev_watcher_time)
136	};	217	} ev_watcher_time;
		218
		219	/* invoked when fd is either EV_READable or EV_WRITEable */
		220	/* revent EV_READ, EV_WRITE */
		221	typedef struct ev_io
		222	{
		223	EV_WATCHER_LIST (ev_io)
		224
		225	int fd; /* ro */
		226	int events; /* ro */
		227	} ev_io;
137		228
138	/* invoked after a specific time, repeatable (based on monotonic clock) */	229	/* invoked after a specific time, repeatable (based on monotonic clock) */
139	/* revent EV_TIMEOUT */	230	/* revent EV_TIMEOUT */
140	struct ev_timer	231	typedef struct ev_timer
141	{	232	{
142	EV_WATCHER_TIME (ev_timer);	233	EV_WATCHER_TIME (ev_timer)
143		234
144	ev_tstamp repeat; /* rw */	235	ev_tstamp repeat; /* rw */
145	};	236	} ev_timer;
146		237
147	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */	238	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
148	/* revent EV_PERIODIC */	239	/* revent EV_PERIODIC */
149	struct ev_periodic	240	typedef struct ev_periodic
150	{	241	{
151	EV_WATCHER_TIME (ev_periodic);	242	EV_WATCHER_TIME (ev_periodic)
152		243
		244	ev_tstamp offset; /* rw */
153	ev_tstamp interval; /* rw */	245	ev_tstamp interval; /* rw */
154	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	246	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
155	};	247	} ev_periodic;
156
157	/* invoked when fd is either EV_READable or EV_WRITEable */
158	/* revent EV_READ, EV_WRITE */
159	struct ev_io
160	{
161	EV_WATCHER_LIST (ev_io);
162
163	int fd; /* ro */
164	int events; /* ro */
165	};
166		248
167	/* invoked when the given signal has been received */	249	/* invoked when the given signal has been received */
168	/* revent EV_SIGNAL */	250	/* revent EV_SIGNAL */
169	struct ev_signal	251	typedef struct ev_signal
170	{	252	{
171	EV_WATCHER_LIST (ev_signal);	253	EV_WATCHER_LIST (ev_signal)
172		254
173	int signum; /* ro */	255	int signum; /* ro */
174	};	256	} ev_signal;
175		257
		258	/* invoked when sigchld is received and waitpid indicates the given pid */
		259	/* revent EV_CHILD */
		260	/* does not support priorities */
		261	typedef struct ev_child
		262	{
		263	EV_WATCHER_LIST (ev_child)
		264
		265	int flags; /* private */
		266	int pid; /* ro */
		267	int rpid; /* rw, holds the received pid */
		268	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
		269	} ev_child;
		270
		271	#if EV_STAT_ENABLE
		272	/* st_nlink = 0 means missing file or other error */
		273	# ifdef _WIN32
		274	typedef struct _stati64 ev_statdata;
		275	# else
		276	typedef struct stat ev_statdata;
		277	# endif
		278
		279	/* invoked each time the stat data changes for a given path */
		280	/* revent EV_STAT */
		281	typedef struct ev_stat
		282	{
		283	EV_WATCHER_LIST (ev_stat)
		284
		285	ev_timer timer; /* private */
		286	ev_tstamp interval; /* ro */
		287	const char path; / ro */
		288	ev_statdata prev; /* ro */
		289	ev_statdata attr; /* ro */
		290
		291	int wd; /* wd for inotify, fd for kqueue */
		292	} ev_stat;
		293	#endif
		294
		295	#if EV_IDLE_ENABLE
176	/* invoked when the nothing else needs to be done, keeps the process from blocking */	296	/* invoked when the nothing else needs to be done, keeps the process from blocking */
177	/* revent EV_IDLE */	297	/* revent EV_IDLE */
178	struct ev_idle	298	typedef struct ev_idle
179	{	299	{
180	EV_WATCHER (ev_idle);	300	EV_WATCHER (ev_idle)
181	};	301	} ev_idle;
		302	#endif
182		303
183	/* invoked for each run of the mainloop, just before the blocking call */	304	/* invoked for each run of the mainloop, just before the blocking call */
184	/* you can still change events in any way you like */	305	/* you can still change events in any way you like */
185	/* revent EV_PREPARE */	306	/* revent EV_PREPARE */
186	struct ev_prepare	307	typedef struct ev_prepare
187	{	308	{
188	EV_WATCHER (ev_prepare);	309	EV_WATCHER (ev_prepare)
189	};	310	} ev_prepare;
190		311
191	/* invoked for each run of the mainloop, just after the blocking call */	312	/* invoked for each run of the mainloop, just after the blocking call */
192	/* revent EV_CHECK */	313	/* revent EV_CHECK */
193	struct ev_check	314	typedef struct ev_check
194	{	315	{
195	EV_WATCHER (ev_check);	316	EV_WATCHER (ev_check)
196	};	317	} ev_check;
197		318
198	/* invoked when sigchld is received and waitpid indicates the givne pid */	319	#if EV_FORK_ENABLE
		320	/* the callback gets invoked before check in the child process when a fork was detected */
		321	typedef struct ev_fork
		322	{
		323	EV_WATCHER (ev_fork)
		324	} ev_fork;
		325	#endif
		326
		327	#if EV_EMBED_ENABLE
		328	/* used to embed an event loop inside another */
		329	/* the callback gets invoked when the event loop has handled events, and can be 0 */
		330	typedef struct ev_embed
		331	{
		332	EV_WATCHER (ev_embed)
		333
		334	struct ev_loop other; / ro */
		335	ev_io io; /* private */
		336	ev_prepare prepare; /* private */
		337	ev_check check; /* unused */
		338	ev_timer timer; /* unused */
		339	ev_periodic periodic; /* unused */
		340	ev_idle idle; /* unused */
		341	ev_fork fork; /* private */
		342	} ev_embed;
		343	#endif
		344
		345	#if EV_ASYNC_ENABLE
		346	/* invoked when somebody calls ev_async_send on the watcher */
199	/* revent EV_CHILD */	347	/* revent EV_ASYNC */
200	/* does not support priorities */	348	typedef struct ev_async
201	struct ev_child
202	{	349	{
203	EV_WATCHER_LIST (ev_child);	350	EV_WATCHER (ev_async)
204		351
205	int pid; /* ro */	352	EV_ATOMIC_T sent; /* private */
206	int rpid; /* rw, holds the received pid */	353	} ev_async;
207	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	354
208	};	355	# define ev_async_pending(w) ((w)->sent + 0)
		356	#endif
209		357
210	/* the presence of this union forces similar struct layout */	358	/* the presence of this union forces similar struct layout */
211	union ev_any_watcher	359	union ev_any_watcher
212	{	360	{
213	struct ev_watcher w;	361	struct ev_watcher w;
214	struct ev_watcher_list wl;	362	struct ev_watcher_list wl;
215		363
216	struct ev_io io;	364	struct ev_io io;
217	struct ev_timer timer;	365	struct ev_timer timer;
218	struct ev_periodic periodic;	366	struct ev_periodic periodic;
		367	struct ev_signal signal;
		368	struct ev_child child;
		369	#if EV_STAT_ENABLE
		370	struct ev_stat stat;
		371	#endif
		372	#if EV_IDLE_ENABLE
219	struct ev_idle idle;	373	struct ev_idle idle;
		374	#endif
220	struct ev_prepare prepare;	375	struct ev_prepare prepare;
221	struct ev_check check;	376	struct ev_check check;
222	struct ev_signal signal;	377	#if EV_FORK_ENABLE
223	struct ev_child child;	378	struct ev_fork fork;
		379	#endif
		380	#if EV_EMBED_ENABLE
		381	struct ev_embed embed;
		382	#endif
		383	#if EV_ASYNC_ENABLE
		384	struct ev_async async;
		385	#endif
224	};	386	};
225		387
226	#define EVMETHOD_AUTO 0 /* consults environment */	388	/* bits for ev_default_loop and ev_loop_new */
227	#define EVMETHOD_SELECT 1	389	/* the default */
228	#define EVMETHOD_POLL 2	390	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
229	#define EVMETHOD_EPOLL 4	391	/* flag bits */
230	#define EVMETHOD_KQUEUE 8	392	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
231	#define EVMETHOD_DEVPOLL 16 /* NYI */	393	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
232	#define EVMETHOD_PORT 32 /* NYI */	394	/* method bits to be ored together */
233	#define EVMETHOD_WIN32 64 /* NYI */	395	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
234	#define EVMETHOD_ANY ~0 /* any method, do not consult env */	396	#define EVBACKEND_POLL 0x00000002U /* !win */
		397	#define EVBACKEND_EPOLL 0x00000004U /* linux */
		398	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
		399	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
		400	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
235		401
236	#if EV_PROTOTYPES	402	#if EV_PROTOTYPES
237	int ev_version_major (void);	403	int ev_version_major (void);
238	int ev_version_minor (void);	404	int ev_version_minor (void);
239		405
		406	unsigned int ev_supported_backends (void);
		407	unsigned int ev_recommended_backends (void);
		408	unsigned int ev_embeddable_backends (void);
		409
240	ev_tstamp ev_time (void);	410	ev_tstamp ev_time (void);
		411	void ev_sleep (ev_tstamp delay); /* sleep for a while */
241		412
242	/* Sets the allocation function to use, works like realloc.	413	/* Sets the allocation function to use, works like realloc.
243	* It is used to allocate and free memory.	414	* It is used to allocate and free memory.
244	* If it returns zero when memory needs to be allocated, the library might abort	415	* If it returns zero when memory needs to be allocated, the library might abort
245	* or take some potentially destructive action.	416	* or take some potentially destructive action.
…		…
251	* retryable syscall error	422	* retryable syscall error
252	* (such as failed select, poll, epoll_wait)	423	* (such as failed select, poll, epoll_wait)
253	*/	424	*/
254	void ev_set_syserr_cb (void (cb)(const char msg));	425	void ev_set_syserr_cb (void (cb)(const char msg));
255		426
256	# if EV_MULTIPLICITY	427	#if EV_MULTIPLICITY
		428	EV_INLINE struct ev_loop *
		429	ev_default_loop_uc (void)
		430	{
		431	extern struct ev_loop *ev_default_loop_ptr;
		432
		433	return ev_default_loop_ptr;
		434	}
		435
257	/* the default loop is the only one that handles signals and child watchers */	436	/* the default loop is the only one that handles signals and child watchers */
258	/* you can call this as often as you like */	437	/* you can call this as often as you like */
259	struct ev_loop ev_default_loop (int methods); / returns default loop */	438	EV_INLINE struct ev_loop *
		439	ev_default_loop (unsigned int flags)
		440	{
		441	struct ev_loop *loop = ev_default_loop_uc ();
		442
		443	if (!loop)
		444	{
		445	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
		446
		447	loop = ev_default_loop_init (flags);
		448	}
		449
		450	return loop;
		451	}
260		452
261	/* create and destroy alternative loops that don't handle signals */	453	/* create and destroy alternative loops that don't handle signals */
262	struct ev_loop *ev_loop_new (int methods);	454	struct ev_loop *ev_loop_new (unsigned int flags);
263	void ev_loop_destroy (EV_P);	455	void ev_loop_destroy (EV_P);
264	void ev_loop_fork (EV_P);	456	void ev_loop_fork (EV_P);
		457	void ev_loop_verify (EV_P);
		458
		459	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
		460	void ev_now_update (EV_P);
		461
265	# else	462	#else
		463
266	int ev_default_loop (int methods); /* returns true when successful */	464	int ev_default_loop (unsigned int flags); /* returns true when successful */
		465
		466	EV_INLINE ev_tstamp
		467	ev_now (void)
		468	{
		469	extern ev_tstamp ev_rt_now;
		470
		471	return ev_rt_now;
		472	}
		473	#endif /* multiplicity */
		474
		475	EV_INLINE int
		476	ev_is_default_loop (EV_P)
		477	{
		478	#if EV_MULTIPLICITY
		479	extern struct ev_loop *ev_default_loop_ptr;
		480
		481	return !!(EV_A == ev_default_loop_ptr);
		482	#else
		483	return 1;
267	# endif	484	#endif
		485	}
268		486
269	void ev_default_destroy (void); /* destroy the default loop */	487	void ev_default_destroy (void); /* destroy the default loop */
270	/* this needs to be called after fork, to duplicate the default loop */	488	/* this needs to be called after fork, to duplicate the default loop */
271	/* if you create alternative loops you have to call ev_loop_fork on them */	489	/* if you create alternative loops you have to call ev_loop_fork on them */
272	/* you can call it in either the parent or the child */	490	/* you can call it in either the parent or the child */
273	/* you can actually call it at any time, anywhere :) */	491	/* you can actually call it at any time, anywhere :) */
274	void ev_default_fork (void);	492	void ev_default_fork (void);
275		493
276	int ev_method (EV_P);	494	unsigned int ev_backend (EV_P); /* backend in use by loop */
277	#endif	495	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
		496	#endif /* prototypes */
278		497
279	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	498	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
280	#define EVLOOP_ONESHOT 2 /* block once only */	499	#define EVLOOP_ONESHOT 2 /* block once only */
		500	#define EVUNLOOP_CANCEL 0 /* undo unloop */
281	#define EVUNLOOP_ONCE 1 /* unloop once */	501	#define EVUNLOOP_ONE 1 /* unloop once */
282	#define EVUNLOOP_ALL 2 /* unloop all loops */	502	#define EVUNLOOP_ALL 2 /* unloop all loops */
283		503
284	#if EV_PROTOTYPES	504	#if EV_PROTOTYPES
285	void ev_loop (EV_P_ int flags);	505	void ev_loop (EV_P_ int flags);
286	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 */	506	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 */
287		507
288	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	508	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		509	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
289		510
290	/*	511	/*
291	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	512	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
292	* keeps one reference. if you have a long-runing watcher you never unregister that	513	* keeps one reference. if you have a long-runing watcher you never unregister that
293	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	514	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
294	*/	515	*/
295	void ev_ref (EV_P);	516	void ev_ref (EV_P);
296	void ev_unref (EV_P);	517	void ev_unref (EV_P);
297		518
298	/* convinience function, wait for a single event, without registering an event watcher */	519	/* convenience function, wait for a single event, without registering an event watcher */
299	/* if timeout is < 0, do wait indefinitely */	520	/* if timeout is < 0, do wait indefinitely */
300	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	521	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
301	#endif	522	#endif
302		523
303	/* these may evaluate ev multiple times, and the other arguments at most once */	524	/* these may evaluate ev multiple times, and the other arguments at most once */
304	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	525	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
305	#define ev_init(ev,cb_) do { \	526	#define ev_init(ev,cb_) do { \
306	((struct ev_watcher )(void )(ev))->active = \	527	((ev_watcher )(void )(ev))->active = \
307	((struct ev_watcher )(void )(ev))->pending = \	528	((ev_watcher )(void )(ev))->pending = \
308	((struct ev_watcher )(void )(ev))->priority = 0; \	529	((ev_watcher )(void )(ev))->priority = 0; \
309	ev_set_cb ((ev), cb_); \	530	ev_set_cb ((ev), cb_); \
310	} while (0)	531	} while (0)
311		532
312	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	533	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV_IOFDSET; } while (0)
313	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	534	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
314	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	535	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
315	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	536	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		537	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		538	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
316	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	539	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
317	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	540	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
318	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	541	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
319	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	542	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
		543	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		544	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
320		545
321	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	546	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
322	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	547	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
323	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	548	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
324	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	549	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		550	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		551	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
325	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	552	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
326	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	553	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
327	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	554	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
		555	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
		556	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
328	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	557	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
329		558
330	#define ev_is_pending(ev) (0 + ((struct ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	559	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
331	#define ev_is_active(ev) (0 + ((struct ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	560	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
332		561
333	#define ev_priority(ev) ((struct ev_watcher )(void )(ev))->priority /* rw */	562	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
334	#define ev_cb(ev) (ev)->cb /* rw */	563	#define ev_cb(ev) (ev)->cb /* rw */
335	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	564	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)
		565
		566	#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
336		567
337	#ifndef ev_set_cb	568	#ifndef ev_set_cb
338	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	569	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
339	#endif	570	#endif
340		571
341	/* stopping (enabling, adding) a watcher does nothing if it is already running */	572	/* stopping (enabling, adding) a watcher does nothing if it is already running */
342	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	573	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
343	#if EV_PROTOTYPES	574	#if EV_PROTOTYPES
…		…
345	/* feeds an event into a watcher as if the event actually occured */	576	/* feeds an event into a watcher as if the event actually occured */
346	/* accepts any ev_watcher type */	577	/* accepts any ev_watcher type */
347	void ev_feed_event (EV_P_ void *w, int revents);	578	void ev_feed_event (EV_P_ void *w, int revents);
348	void ev_feed_fd_event (EV_P_ int fd, int revents);	579	void ev_feed_fd_event (EV_P_ int fd, int revents);
349	void ev_feed_signal_event (EV_P_ int signum);	580	void ev_feed_signal_event (EV_P_ int signum);
		581	void ev_invoke (EV_P_ void *w, int revents);
		582	int ev_clear_pending (EV_P_ void *w);
350		583
351	void ev_io_start (EV_P_ struct ev_io *w);	584	void ev_io_start (EV_P_ ev_io *w);
352	void ev_io_stop (EV_P_ struct ev_io *w);	585	void ev_io_stop (EV_P_ ev_io *w);
353		586
354	void ev_timer_start (EV_P_ struct ev_timer *w);	587	void ev_timer_start (EV_P_ ev_timer *w);
355	void ev_timer_stop (EV_P_ struct ev_timer *w);	588	void ev_timer_stop (EV_P_ ev_timer *w);
356	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	589	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
357	void ev_timer_again (EV_P_ struct ev_timer *w);	590	void ev_timer_again (EV_P_ ev_timer *w);
358		591
		592	#if EV_PERIODIC_ENABLE
359	void ev_periodic_start (EV_P_ struct ev_periodic *w);	593	void ev_periodic_start (EV_P_ ev_periodic *w);
360	void ev_periodic_stop (EV_P_ struct ev_periodic *w);	594	void ev_periodic_stop (EV_P_ ev_periodic *w);
361	void ev_periodic_again (EV_P_ struct ev_periodic *w);	595	void ev_periodic_again (EV_P_ ev_periodic *w);
362		596	#endif
363	void ev_idle_start (EV_P_ struct ev_idle *w);
364	void ev_idle_stop (EV_P_ struct ev_idle *w);
365
366	void ev_prepare_start (EV_P_ struct ev_prepare *w);
367	void ev_prepare_stop (EV_P_ struct ev_prepare *w);
368
369	void ev_check_start (EV_P_ struct ev_check *w);
370	void ev_check_stop (EV_P_ struct ev_check *w);
371		597
372	/* only supported in the default loop */	598	/* only supported in the default loop */
373	void ev_signal_start (EV_P_ struct ev_signal *w);	599	void ev_signal_start (EV_P_ ev_signal *w);
374	void ev_signal_stop (EV_P_ struct ev_signal *w);	600	void ev_signal_stop (EV_P_ ev_signal *w);
375		601
376	/* only supported in the default loop */	602	/* only supported in the default loop */
377	void ev_child_start (EV_P_ struct ev_child *w);	603	void ev_child_start (EV_P_ ev_child *w);
378	void ev_child_stop (EV_P_ struct ev_child *w);	604	void ev_child_stop (EV_P_ ev_child *w);
		605
		606	# if EV_STAT_ENABLE
		607	void ev_stat_start (EV_P_ ev_stat *w);
		608	void ev_stat_stop (EV_P_ ev_stat *w);
		609	void ev_stat_stat (EV_P_ ev_stat *w);
		610	# endif
		611
		612	# if EV_IDLE_ENABLE
		613	void ev_idle_start (EV_P_ ev_idle *w);
		614	void ev_idle_stop (EV_P_ ev_idle *w);
		615	# endif
		616
		617	void ev_prepare_start (EV_P_ ev_prepare *w);
		618	void ev_prepare_stop (EV_P_ ev_prepare *w);
		619
		620	void ev_check_start (EV_P_ ev_check *w);
		621	void ev_check_stop (EV_P_ ev_check *w);
		622
		623	# if EV_FORK_ENABLE
		624	void ev_fork_start (EV_P_ ev_fork *w);
		625	void ev_fork_stop (EV_P_ ev_fork *w);
		626	# endif
		627
		628	# if EV_EMBED_ENABLE
		629	/* only supported when loop to be embedded is in fact embeddable */
		630	void ev_embed_start (EV_P_ ev_embed *w);
		631	void ev_embed_stop (EV_P_ ev_embed *w);
		632	void ev_embed_sweep (EV_P_ ev_embed *w);
		633	# endif
		634
		635	# if EV_ASYNC_ENABLE
		636	void ev_async_start (EV_P_ ev_async *w);
		637	void ev_async_stop (EV_P_ ev_async *w);
		638	void ev_async_send (EV_P_ ev_async *w);
		639	# endif
		640
379	#endif	641	#endif
380		642
381	#ifdef __cplusplus	643	#ifdef __cplusplus
382	}	644	}
383	#endif	645	#endif

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Comparing libev/ev.h (file contents): Revision 1.46 by root, Sat Nov 10 00:55:27 2007 UTC vs. Revision 1.110 by root, Wed Mar 4 14:33:10 2009 UTC

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Comparing libev/ev.h (file contents):
Revision 1.46 by root, Sat Nov 10 00:55:27 2007 UTC vs.
Revision 1.110 by root, Wed Mar 4 14:33:10 2009 UTC