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

Comparing libev/ev.h (file contents):
Revision 1.60 by root, Sat Nov 17 02:28:43 2007 UTC vs.
Revision 1.106 by root, Mon Sep 29 03:31:14 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
46		56
47	#ifndef EV_MULTIPLICITY	57	#ifndef EV_MULTIPLICITY
48	# define EV_MULTIPLICITY 1	58	# define EV_MULTIPLICITY 1
49	#endif	59	#endif
50		60
51	#ifndef EV_PERIODICS	61	#ifndef EV_PERIODIC_ENABLE
52	# define EV_PERIODICS 1	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>
53	#endif	98	#endif
54		99
55	/* support multiple event loops? */	100	/* support multiple event loops? */
56	#if EV_MULTIPLICITY	101	#if EV_MULTIPLICITY
57	struct ev_loop;	102	struct ev_loop;
58	# define EV_P struct ev_loop *loop	103	# define EV_P struct ev_loop *loop
59	# define EV_P_ EV_P,	104	# define EV_P_ EV_P,
60	# define EV_A loop	105	# define EV_A loop
61	# 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,
62	# define EV_DEFAULT_A ev_default_loop (0)	109	# define EV_DEFAULT ev_default_loop (0)
63	# define EV_DEFAULT_A_ EV_DEFAULT_A,	110	# define EV_DEFAULT_ EV_DEFAULT,
64	#else	111	#else
65	# define EV_P void	112	# define EV_P void
66	# define EV_P_	113	# define EV_P_
67	# define EV_A	114	# define EV_A
68	# define EV_A_	115	# define EV_A_
		116	# define EV_DEFAULT
69	# define EV_DEFAULT_A	117	# define EV_DEFAULT_
		118	# define EV_DEFAULT_UC
70	# define EV_DEFAULT_A_	119	# define EV_DEFAULT_UC_
		120	# undef EV_EMBED_ENABLE
71	#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	/*****************************************************************************/
72		130
73	/* eventmask, revents, events... */	131	/* eventmask, revents, events... */
74	#define EV_UNDEF -1 /* guaranteed to be invalid */	132	#define EV_UNDEF -1 /* guaranteed to be invalid */
75	#define EV_NONE 0x00
76	#define EV_READ 0x01 /* io only */	133	#define EV_NONE 0x00 /* no events */
		134	#define EV_READ 0x01 /* ev_io detected read will not block */
		135	#define EV_WRITE 0x02 /* ev_io detected write will not block */
77	#define EV_WRITE 0x02 /* io only */	136	#define EV_IOFDSET 0x80 /* internal use only */
78	#define EV_TIMEOUT 0x000100 /* timer only */	137	#define EV_TIMEOUT 0x00000100 /* timer timed out */
79	#define EV_PERIODIC 0x000200 /* periodic timer only */	138	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
80	#define EV_SIGNAL 0x000400 /* signal only */	139	#define EV_SIGNAL 0x00000400 /* signal was received */
81	#define EV_IDLE 0x000800 /* idle only */
82	#define EV_CHECK 0x001000 /* check only */
83	#define EV_PREPARE 0x002000 /* prepare only */
84	#define EV_CHILD 0x004000 /* child/pid only */	140	#define EV_CHILD 0x00000800 /* child/pid had status change */
		141	#define EV_STAT 0x00001000 /* stat data changed */
		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 */
85	#define EV_ERROR 0x800000 /* sent when an error occurs */	148	#define EV_ERROR 0x80000000 /* sent when an error occurs */
86		149
87	/* can be used to add custom fields to all watchers, while losing binary compatibility */	150	/* can be used to add custom fields to all watchers, while losing binary compatibility */
88	#ifndef EV_COMMON	151	#ifndef EV_COMMON
89	# define EV_COMMON void *data;	152	# define EV_COMMON void *data;
90	#endif	153	#endif
91	#ifndef EV_PROTOTYPES	154	#ifndef EV_PROTOTYPES
92	# define EV_PROTOTYPES 1	155	# define EV_PROTOTYPES 1
93	#endif	156	#endif
94		157
95	#define EV_VERSION_MAJOR 1	158	#define EV_VERSION_MAJOR 3
96	#define EV_VERSION_MINOR 1	159	#define EV_VERSION_MINOR 0
97		160
98	#ifndef EV_CB_DECLARE	161	#ifndef EV_CB_DECLARE
99	# 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);
100	#endif	163	#endif
101	#ifndef EV_CB_INVOKE	164	#ifndef EV_CB_INVOKE
…		…
105	/*	168	/*
106	* struct member types:	169	* struct member types:
107	* private: you can look at them, but not change them, and they might not mean anything to you.	170	* private: you can look at them, but not change them, and they might not mean anything to you.
108	* ro: can be read anytime, but only changed when the watcher isn't active	171	* ro: can be read anytime, but only changed when the watcher isn't active
109	* rw: can be read and modified anytime, even when the watcher is active	172	* rw: can be read and modified anytime, even when the watcher is active
		173	*
		174	* some internal details that might be helpful for debugging:
		175	*
		176	* active is either 0, which means the watcher is not active,
		177	* or the array index of the watcher (periodics, timers)
		178	* or the array index + 1 (most other watchers)
		179	* or simply 1 for watchers that aren't in some array.
		180	* pending is either 0, in which case the watcher isn't,
		181	* or the array index + 1 in the pendings array.
110	*/	182	*/
111		183
112	/* shared by all watchers */	184	/* shared by all watchers */
113	#define EV_WATCHER(type) \	185	#define EV_WATCHER(type) \
114	int active; /* private */ \	186	int active; /* private */ \
…		…
124	#define EV_WATCHER_TIME(type) \	196	#define EV_WATCHER_TIME(type) \
125	EV_WATCHER (type) \	197	EV_WATCHER (type) \
126	ev_tstamp at; /* private */	198	ev_tstamp at; /* private */
127		199
128	/* base class, nothing to see here unless you subclass */	200	/* base class, nothing to see here unless you subclass */
129	struct ev_watcher	201	typedef struct ev_watcher
130	{	202	{
131	EV_WATCHER (ev_watcher)	203	EV_WATCHER (ev_watcher)
132	};	204	} ev_watcher;
133		205
134	/* base class, nothing to see here unless you subclass */	206	/* base class, nothing to see here unless you subclass */
135	struct ev_watcher_list	207	typedef struct ev_watcher_list
136	{	208	{
137	EV_WATCHER_LIST (ev_watcher_list)	209	EV_WATCHER_LIST (ev_watcher_list)
138	};	210	} ev_watcher_list;
139		211
140	/* base class, nothing to see here unless you subclass */	212	/* base class, nothing to see here unless you subclass */
141	struct ev_watcher_time	213	typedef struct ev_watcher_time
142	{	214	{
143	EV_WATCHER_TIME (ev_watcher_time)	215	EV_WATCHER_TIME (ev_watcher_time)
144	};	216	} ev_watcher_time;
		217
		218	/* invoked when fd is either EV_READable or EV_WRITEable */
		219	/* revent EV_READ, EV_WRITE */
		220	typedef struct ev_io
		221	{
		222	EV_WATCHER_LIST (ev_io)
		223
		224	int fd; /* ro */
		225	int events; /* ro */
		226	} ev_io;
145		227
146	/* invoked after a specific time, repeatable (based on monotonic clock) */	228	/* invoked after a specific time, repeatable (based on monotonic clock) */
147	/* revent EV_TIMEOUT */	229	/* revent EV_TIMEOUT */
148	struct ev_timer	230	typedef struct ev_timer
149	{	231	{
150	EV_WATCHER_TIME (ev_timer)	232	EV_WATCHER_TIME (ev_timer)
151		233
152	ev_tstamp repeat; /* rw */	234	ev_tstamp repeat; /* rw */
153	};	235	} ev_timer;
154		236
155	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */	237	/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
156	/* revent EV_PERIODIC */	238	/* revent EV_PERIODIC */
157	struct ev_periodic	239	typedef struct ev_periodic
158	{	240	{
159	EV_WATCHER_TIME (ev_periodic)	241	EV_WATCHER_TIME (ev_periodic)
160		242
		243	ev_tstamp offset; /* rw */
161	ev_tstamp interval; /* rw */	244	ev_tstamp interval; /* rw */
162	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	245	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
163	};	246	} ev_periodic;
164
165	/* invoked when fd is either EV_READable or EV_WRITEable */
166	/* revent EV_READ, EV_WRITE */
167	struct ev_io
168	{
169	EV_WATCHER_LIST (ev_io)
170
171	int fd; /* ro */
172	int events; /* ro */
173	};
174		247
175	/* invoked when the given signal has been received */	248	/* invoked when the given signal has been received */
176	/* revent EV_SIGNAL */	249	/* revent EV_SIGNAL */
177	struct ev_signal	250	typedef struct ev_signal
178	{	251	{
179	EV_WATCHER_LIST (ev_signal)	252	EV_WATCHER_LIST (ev_signal)
180		253
181	int signum; /* ro */	254	int signum; /* ro */
182	};	255	} ev_signal;
183		256
		257	/* invoked when sigchld is received and waitpid indicates the given pid */
		258	/* revent EV_CHILD */
		259	/* does not support priorities */
		260	typedef struct ev_child
		261	{
		262	EV_WATCHER_LIST (ev_child)
		263
		264	int flags; /* private */
		265	int pid; /* ro */
		266	int rpid; /* rw, holds the received pid */
		267	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
		268	} ev_child;
		269
		270	#if EV_STAT_ENABLE
		271	/* st_nlink = 0 means missing file or other error */
		272	# ifdef _WIN32
		273	typedef struct _stati64 ev_statdata;
		274	# else
		275	typedef struct stat ev_statdata;
		276	# endif
		277
		278	/* invoked each time the stat data changes for a given path */
		279	/* revent EV_STAT */
		280	typedef struct ev_stat
		281	{
		282	EV_WATCHER_LIST (ev_stat)
		283
		284	ev_timer timer; /* private */
		285	ev_tstamp interval; /* ro */
		286	const char path; / ro */
		287	ev_statdata prev; /* ro */
		288	ev_statdata attr; /* ro */
		289
		290	int wd; /* wd for inotify, fd for kqueue */
		291	} ev_stat;
		292	#endif
		293
		294	#if EV_IDLE_ENABLE
184	/* invoked when the nothing else needs to be done, keeps the process from blocking */	295	/* invoked when the nothing else needs to be done, keeps the process from blocking */
185	/* revent EV_IDLE */	296	/* revent EV_IDLE */
186	struct ev_idle	297	typedef struct ev_idle
187	{	298	{
188	EV_WATCHER (ev_idle)	299	EV_WATCHER (ev_idle)
189	};	300	} ev_idle;
		301	#endif
190		302
191	/* invoked for each run of the mainloop, just before the blocking call */	303	/* invoked for each run of the mainloop, just before the blocking call */
192	/* you can still change events in any way you like */	304	/* you can still change events in any way you like */
193	/* revent EV_PREPARE */	305	/* revent EV_PREPARE */
194	struct ev_prepare	306	typedef struct ev_prepare
195	{	307	{
196	EV_WATCHER (ev_prepare)	308	EV_WATCHER (ev_prepare)
197	};	309	} ev_prepare;
198		310
199	/* invoked for each run of the mainloop, just after the blocking call */	311	/* invoked for each run of the mainloop, just after the blocking call */
200	/* revent EV_CHECK */	312	/* revent EV_CHECK */
201	struct ev_check	313	typedef struct ev_check
202	{	314	{
203	EV_WATCHER (ev_check)	315	EV_WATCHER (ev_check)
204	};	316	} ev_check;
205		317
206	/* invoked when sigchld is received and waitpid indicates the given pid */	318	#if EV_FORK_ENABLE
		319	/* the callback gets invoked before check in the child process when a fork was detected */
		320	typedef struct ev_fork
		321	{
		322	EV_WATCHER (ev_fork)
		323	} ev_fork;
		324	#endif
		325
		326	#if EV_EMBED_ENABLE
		327	/* used to embed an event loop inside another */
		328	/* the callback gets invoked when the event loop has handled events, and can be 0 */
		329	typedef struct ev_embed
		330	{
		331	EV_WATCHER (ev_embed)
		332
		333	struct ev_loop other; / ro */
		334	ev_io io; /* private */
		335	ev_prepare prepare; /* private */
		336	ev_check check; /* unused */
		337	ev_timer timer; /* unused */
		338	ev_periodic periodic; /* unused */
		339	ev_idle idle; /* unused */
		340	ev_fork fork; /* private */
		341	} ev_embed;
		342	#endif
		343
		344	#if EV_ASYNC_ENABLE
		345	/* invoked when somebody calls ev_async_send on the watcher */
207	/* revent EV_CHILD */	346	/* revent EV_ASYNC */
208	/* does not support priorities */	347	typedef struct ev_async
209	struct ev_child
210	{	348	{
211	EV_WATCHER_LIST (ev_child)	349	EV_WATCHER (ev_async)
212		350
213	int pid; /* ro */	351	EV_ATOMIC_T sent; /* private */
214	int rpid; /* rw, holds the received pid */	352	} ev_async;
215	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	353
216	};	354	# define ev_async_pending(w) ((w)->sent + 0)
		355	#endif
217		356
218	/* the presence of this union forces similar struct layout */	357	/* the presence of this union forces similar struct layout */
219	union ev_any_watcher	358	union ev_any_watcher
220	{	359	{
221	struct ev_watcher w;	360	struct ev_watcher w;
222	struct ev_watcher_list wl;	361	struct ev_watcher_list wl;
223		362
224	struct ev_io io;	363	struct ev_io io;
225	struct ev_timer timer;	364	struct ev_timer timer;
226	struct ev_periodic periodic;	365	struct ev_periodic periodic;
		366	struct ev_signal signal;
		367	struct ev_child child;
		368	#if EV_STAT_ENABLE
		369	struct ev_stat stat;
		370	#endif
		371	#if EV_IDLE_ENABLE
227	struct ev_idle idle;	372	struct ev_idle idle;
		373	#endif
228	struct ev_prepare prepare;	374	struct ev_prepare prepare;
229	struct ev_check check;	375	struct ev_check check;
230	struct ev_signal signal;	376	#if EV_FORK_ENABLE
231	struct ev_child child;	377	struct ev_fork fork;
		378	#endif
		379	#if EV_EMBED_ENABLE
		380	struct ev_embed embed;
		381	#endif
		382	#if EV_ASYNC_ENABLE
		383	struct ev_async async;
		384	#endif
232	};	385	};
233		386
234	/* bits for ev_default_loop and ev_loop_new */	387	/* bits for ev_default_loop and ev_loop_new */
235	/* the default */	388	/* the default */
236	#define EVFLAG_AUTO 0x00000000 /* not quite a mask */	389	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
237		390	/* flag bits */
		391	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
		392	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
238	/* method bits to be ored together */	393	/* method bits to be ored together */
239	#define EVMETHOD_SELECT 0x00000001 /* about anywhere */	394	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
240	#define EVMETHOD_POLL 0x00000002 /* !win */	395	#define EVBACKEND_POLL 0x00000002U /* !win */
241	#define EVMETHOD_EPOLL 0x00000004 /* linux */	396	#define EVBACKEND_EPOLL 0x00000004U /* linux */
242	#define EVMETHOD_KQUEUE 0x00000008 /* bsd */	397	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
243	#define EVMETHOD_DEVPOLL 0x00000010 /* solaris 8 / / NYI */	398	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
244	#define EVMETHOD_PORT 0x00000020 /* solaris 10 */	399	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
245
246	/* flag bits */
247	#define EVFLAG_NOENV 0x01000000 /* do NOT consult environment */
248		400
249	#if EV_PROTOTYPES	401	#if EV_PROTOTYPES
250	int ev_version_major (void);	402	int ev_version_major (void);
251	int ev_version_minor (void);	403	int ev_version_minor (void);
252		404
		405	unsigned int ev_supported_backends (void);
		406	unsigned int ev_recommended_backends (void);
		407	unsigned int ev_embeddable_backends (void);
		408
253	ev_tstamp ev_time (void);	409	ev_tstamp ev_time (void);
		410	void ev_sleep (ev_tstamp delay); /* sleep for a while */
254		411
255	/* Sets the allocation function to use, works like realloc.	412	/* Sets the allocation function to use, works like realloc.
256	* It is used to allocate and free memory.	413	* It is used to allocate and free memory.
257	* If it returns zero when memory needs to be allocated, the library might abort	414	* If it returns zero when memory needs to be allocated, the library might abort
258	* or take some potentially destructive action.	415	* or take some potentially destructive action.
…		…
264	* retryable syscall error	421	* retryable syscall error
265	* (such as failed select, poll, epoll_wait)	422	* (such as failed select, poll, epoll_wait)
266	*/	423	*/
267	void ev_set_syserr_cb (void (cb)(const char msg));	424	void ev_set_syserr_cb (void (cb)(const char msg));
268		425
269	# if EV_MULTIPLICITY	426	#if EV_MULTIPLICITY
		427	EV_INLINE struct ev_loop *
		428	ev_default_loop_uc (void)
		429	{
		430	extern struct ev_loop *ev_default_loop_ptr;
		431
		432	return ev_default_loop_ptr;
		433	}
		434
270	/* the default loop is the only one that handles signals and child watchers */	435	/* the default loop is the only one that handles signals and child watchers */
271	/* you can call this as often as you like */	436	/* you can call this as often as you like */
272	static struct ev_loop *	437	EV_INLINE struct ev_loop *
273	ev_default_loop (unsigned int flags)	438	ev_default_loop (unsigned int flags)
274	{	439	{
275	extern struct ev_loop *ev_default_loop_ptr;	440	struct ev_loop *loop = ev_default_loop_uc ();
		441
		442	if (!loop)
		443	{
276	extern struct ev_loop *ev_default_loop_ (unsigned int flags);	444	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
277		445
278	if (!ev_default_loop_ptr)
279	ev_default_loop_init (flags);	446	loop = ev_default_loop_init (flags);
		447	}
280		448
281	return ev_default_loop_ptr;	449	return loop;
282	}	450	}
283		451
284	/* create and destroy alternative loops that don't handle signals */	452	/* create and destroy alternative loops that don't handle signals */
285	struct ev_loop *ev_loop_new (unsigned int flags);	453	struct ev_loop *ev_loop_new (unsigned int flags);
286	void ev_loop_destroy (EV_P);	454	void ev_loop_destroy (EV_P);
287	void ev_loop_fork (EV_P);	455	void ev_loop_fork (EV_P);
		456	void ev_loop_verify (EV_P);
288		457
289	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	458	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
		459	void ev_now_update (EV_P);
290		460
291	# else	461	#else
292		462
293	int ev_default_loop (unsigned int flags); /* returns true when successful */	463	int ev_default_loop (unsigned int flags); /* returns true when successful */
294		464
295	static ev_tstamp	465	EV_INLINE ev_tstamp
296	ev_now (void)	466	ev_now (void)
297	{	467	{
298	extern ev_tstamp ev_rt_now;	468	extern ev_tstamp ev_rt_now;
299		469
300	return ev_rt_now;	470	return ev_rt_now;
301	}	471	}
		472	#endif /* multiplicity */
		473
		474	EV_INLINE int
		475	ev_is_default_loop (EV_P)
		476	{
		477	#if EV_MULTIPLICITY
		478	extern struct ev_loop *ev_default_loop_ptr;
		479
		480	return !!(EV_A == ev_default_loop_ptr);
		481	#else
		482	return 1;
302	# endif	483	#endif
		484	}
303		485
304	void ev_default_destroy (void); /* destroy the default loop */	486	void ev_default_destroy (void); /* destroy the default loop */
305	/* this needs to be called after fork, to duplicate the default loop */	487	/* this needs to be called after fork, to duplicate the default loop */
306	/* if you create alternative loops you have to call ev_loop_fork on them */	488	/* if you create alternative loops you have to call ev_loop_fork on them */
307	/* you can call it in either the parent or the child */	489	/* you can call it in either the parent or the child */
308	/* you can actually call it at any time, anywhere :) */	490	/* you can actually call it at any time, anywhere :) */
309	void ev_default_fork (void);	491	void ev_default_fork (void);
310		492
311	unsigned int ev_method (EV_P);	493	unsigned int ev_backend (EV_P); /* backend in use by loop */
312	#endif	494	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
		495	#endif /* prototypes */
313		496
314	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	497	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
315	#define EVLOOP_ONESHOT 2 /* block once only */	498	#define EVLOOP_ONESHOT 2 /* block once only */
		499	#define EVUNLOOP_CANCEL 0 /* undo unloop */
316	#define EVUNLOOP_ONE 1 /* unloop once */	500	#define EVUNLOOP_ONE 1 /* unloop once */
317	#define EVUNLOOP_ALL 2 /* unloop all loops */	501	#define EVUNLOOP_ALL 2 /* unloop all loops */
318		502
319	#if EV_PROTOTYPES	503	#if EV_PROTOTYPES
320	void ev_loop (EV_P_ int flags);	504	void ev_loop (EV_P_ int flags);
321	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 */	505	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
		507	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		508	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
322		509
323	/*	510	/*
324	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	511	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
325	* keeps one reference. if you have a long-runing watcher you never unregister that	512	* keeps one reference. if you have a long-runing watcher you never unregister that
326	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	513	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
…		…
333	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	520	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
334	#endif	521	#endif
335		522
336	/* these may evaluate ev multiple times, and the other arguments at most once */	523	/* these may evaluate ev multiple times, and the other arguments at most once */
337	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	524	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
338	#define ev_init(ev,cb_) do { \	525	#define ev_init(ev,cb_) do { \
339	((struct ev_watcher )(void )(ev))->active = \	526	((ev_watcher )(void )(ev))->active = \
340	((struct ev_watcher )(void )(ev))->pending = \	527	((ev_watcher )(void )(ev))->pending = \
341	((struct ev_watcher )(void )(ev))->priority = 0; \	528	((ev_watcher )(void )(ev))->priority = 0; \
342	ev_set_cb ((ev), cb_); \	529	ev_set_cb ((ev), cb_); \
343	} while (0)	530	} while (0)
344		531
345	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	532	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV_IOFDSET; } while (0)
346	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	533	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
347	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	534	#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
348	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	535	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		536	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		537	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
349	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	538	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
350	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	539	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
351	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	540	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
		541	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
		542	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
352	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	543	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
353		544
354	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	545	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
355	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	546	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
356	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	547	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
357	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	548	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		549	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		550	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
358	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	551	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
359	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	552	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
360	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	553	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
		554	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
		555	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
361	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	556	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
362		557
363	#define ev_is_pending(ev) (0 + ((struct ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	558	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
364	#define ev_is_active(ev) (0 + ((struct ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	559	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
365		560
366	#define ev_priority(ev) ((struct ev_watcher )(void )(ev))->priority /* rw */	561	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
367	#define ev_cb(ev) (ev)->cb /* rw */	562	#define ev_cb(ev) (ev)->cb /* rw */
368	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	563	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)
		564
		565	#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
369		566
370	#ifndef ev_set_cb	567	#ifndef ev_set_cb
371	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	568	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
372	#endif	569	#endif
373		570
…		…
378	/* feeds an event into a watcher as if the event actually occured */	575	/* feeds an event into a watcher as if the event actually occured */
379	/* accepts any ev_watcher type */	576	/* accepts any ev_watcher type */
380	void ev_feed_event (EV_P_ void *w, int revents);	577	void ev_feed_event (EV_P_ void *w, int revents);
381	void ev_feed_fd_event (EV_P_ int fd, int revents);	578	void ev_feed_fd_event (EV_P_ int fd, int revents);
382	void ev_feed_signal_event (EV_P_ int signum);	579	void ev_feed_signal_event (EV_P_ int signum);
		580	void ev_invoke (EV_P_ void *w, int revents);
		581	int ev_clear_pending (EV_P_ void *w);
383		582
384	void ev_io_start (EV_P_ struct ev_io *w);	583	void ev_io_start (EV_P_ ev_io *w);
385	void ev_io_stop (EV_P_ struct ev_io *w);	584	void ev_io_stop (EV_P_ ev_io *w);
386		585
387	void ev_timer_start (EV_P_ struct ev_timer *w);	586	void ev_timer_start (EV_P_ ev_timer *w);
388	void ev_timer_stop (EV_P_ struct ev_timer *w);	587	void ev_timer_stop (EV_P_ ev_timer *w);
389	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	588	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
390	void ev_timer_again (EV_P_ struct ev_timer *w);	589	void ev_timer_again (EV_P_ ev_timer *w);
391		590
392	#if EV_PERIODICS	591	#if EV_PERIODIC_ENABLE
393	void ev_periodic_start (EV_P_ struct ev_periodic *w);	592	void ev_periodic_start (EV_P_ ev_periodic *w);
394	void ev_periodic_stop (EV_P_ struct ev_periodic *w);	593	void ev_periodic_stop (EV_P_ ev_periodic *w);
395	void ev_periodic_again (EV_P_ struct ev_periodic *w);	594	void ev_periodic_again (EV_P_ ev_periodic *w);
396	#endif	595	#endif
397
398	void ev_idle_start (EV_P_ struct ev_idle *w);
399	void ev_idle_stop (EV_P_ struct ev_idle *w);
400
401	void ev_prepare_start (EV_P_ struct ev_prepare *w);
402	void ev_prepare_stop (EV_P_ struct ev_prepare *w);
403
404	void ev_check_start (EV_P_ struct ev_check *w);
405	void ev_check_stop (EV_P_ struct ev_check *w);
406		596
407	/* only supported in the default loop */	597	/* only supported in the default loop */
408	void ev_signal_start (EV_P_ struct ev_signal *w);	598	void ev_signal_start (EV_P_ ev_signal *w);
409	void ev_signal_stop (EV_P_ struct ev_signal *w);	599	void ev_signal_stop (EV_P_ ev_signal *w);
410		600
411	/* only supported in the default loop */	601	/* only supported in the default loop */
412	void ev_child_start (EV_P_ struct ev_child *w);	602	void ev_child_start (EV_P_ ev_child *w);
413	void ev_child_stop (EV_P_ struct ev_child *w);	603	void ev_child_stop (EV_P_ ev_child *w);
		604
		605	# if EV_STAT_ENABLE
		606	void ev_stat_start (EV_P_ ev_stat *w);
		607	void ev_stat_stop (EV_P_ ev_stat *w);
		608	void ev_stat_stat (EV_P_ ev_stat *w);
		609	# endif
		610
		611	# if EV_IDLE_ENABLE
		612	void ev_idle_start (EV_P_ ev_idle *w);
		613	void ev_idle_stop (EV_P_ ev_idle *w);
		614	# endif
		615
		616	void ev_prepare_start (EV_P_ ev_prepare *w);
		617	void ev_prepare_stop (EV_P_ ev_prepare *w);
		618
		619	void ev_check_start (EV_P_ ev_check *w);
		620	void ev_check_stop (EV_P_ ev_check *w);
		621
		622	# if EV_FORK_ENABLE
		623	void ev_fork_start (EV_P_ ev_fork *w);
		624	void ev_fork_stop (EV_P_ ev_fork *w);
		625	# endif
		626
		627	# if EV_EMBED_ENABLE
		628	/* only supported when loop to be embedded is in fact embeddable */
		629	void ev_embed_start (EV_P_ ev_embed *w);
		630	void ev_embed_stop (EV_P_ ev_embed *w);
		631	void ev_embed_sweep (EV_P_ ev_embed *w);
		632	# endif
		633
		634	# if EV_ASYNC_ENABLE
		635	void ev_async_start (EV_P_ ev_async *w);
		636	void ev_async_stop (EV_P_ ev_async *w);
		637	void ev_async_send (EV_P_ ev_async *w);
		638	# endif
		639
414	#endif	640	#endif
415		641
416	#ifdef __cplusplus	642	#ifdef __cplusplus
417	}	643	}
418	#endif	644	#endif

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Comparing libev/ev.h (file contents): Revision 1.60 by root, Sat Nov 17 02:28:43 2007 UTC vs. Revision 1.106 by root, Mon Sep 29 03:31:14 2008 UTC

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Comparing libev/ev.h (file contents):
Revision 1.60 by root, Sat Nov 17 02:28:43 2007 UTC vs.
Revision 1.106 by root, Mon Sep 29 03:31:14 2008 UTC