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

Comparing libev/ev.h (file contents):
Revision 1.79 by root, Sat Dec 8 03:53:36 2007 UTC vs.
Revision 1.144 by root, Fri Oct 22 06:02:27 2010 UTC

…		…
1	/*	1	/*
		2	* libev native API header
		3	*
2	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 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
		47	/*****************************************************************************/
		48
		49	/* pre-4.0 compatibility */
		50	#ifndef EV_COMPAT3
		51	# define EV_COMPAT3 1
		52	#endif
		53
		54	#ifndef EV_FEATURES
		55	# define EV_FEATURES 0x7f
		56	#endif
		57
		58	#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
		59	#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
		60	#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
		61	#define EV_FEATURE_API ((EV_FEATURES) & 8)
		62	#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
		63	#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
		64	#define EV_FEATURE_OS ((EV_FEATURES) & 64)
		65
		66	/* these priorities are inclusive, higher priorities will be invoked earlier */
		67	#ifndef EV_MINPRI
		68	# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
		69	#endif
		70	#ifndef EV_MAXPRI
		71	# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
		72	#endif
		73
		74	#ifndef EV_MULTIPLICITY
		75	# define EV_MULTIPLICITY EV_FEATURE_CONFIG
		76	#endif
		77
		78	#ifndef EV_PERIODIC_ENABLE
		79	# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
		80	#endif
		81
		82	#ifndef EV_STAT_ENABLE
		83	# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
		84	#endif
		85
		86	#ifndef EV_PREPARE_ENABLE
		87	# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
		88	#endif
		89
		90	#ifndef EV_CHECK_ENABLE
		91	# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
		92	#endif
		93
		94	#ifndef EV_IDLE_ENABLE
		95	# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
		96	#endif
		97
		98	#ifndef EV_FORK_ENABLE
		99	# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
		100	#endif
		101
		102	#ifndef EV_SIGNAL_ENABLE
		103	# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
		104	#endif
		105
		106	#ifndef EV_CHILD_ENABLE
		107	# ifdef _WIN32
		108	# define EV_CHILD_ENABLE 0
		109	# else
		110	# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
		111	#endif
		112	#endif
		113
		114	#ifndef EV_ASYNC_ENABLE
		115	# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
		116	#endif
		117
		118	#ifndef EV_EMBED_ENABLE
		119	# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
		120	#endif
		121
		122	#ifndef EV_WALK_ENABLE
		123	# define EV_WALK_ENABLE 0 /* not yet */
		124	#endif
		125
		126	/*****************************************************************************/
		127
		128	#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
		129	# undef EV_SIGNAL_ENABLE
		130	# define EV_SIGNAL_ENABLE 1
		131	#endif
		132
		133	/*****************************************************************************/
		134
37	typedef double ev_tstamp;	135	typedef double ev_tstamp;
38		136
39	/* these priorities are inclusive, higher priorities will be called earlier */	137	#ifndef EV_ATOMIC_T
40	#ifndef EV_MINPRI	138	# include <signal.h>
41	# define EV_MINPRI -2	139	# define EV_ATOMIC_T sig_atomic_t volatile
42	#endif	140	#endif
43	#ifndef EV_MAXPRI
44	# define EV_MAXPRI +2
45	#endif
46
47	#ifndef EV_MULTIPLICITY
48	# define EV_MULTIPLICITY 1
49	#endif
50
51	#ifndef EV_PERIODIC_ENABLE
52	# define EV_PERIODIC_ENABLE 1
53	#endif
54
55	#ifndef EV_STAT_ENABLE
56	# define EV_STAT_ENABLE 1
57	#endif
58
59	#ifndef EV_IDLE_ENABLE
60	# define EV_IDLE_ENABLE 1
61	#endif
62
63	#ifndef EV_FORK_ENABLE
64	# define EV_FORK_ENABLE 1
65	#endif
66
67	#ifndef EV_EMBED_ENABLE
68	# define EV_EMBED_ENABLE 1
69	#endif
70
71	/*****************************************************************************/
72		141
73	#if EV_STAT_ENABLE	142	#if EV_STAT_ENABLE
		143	# ifdef _WIN32
		144	# include <time.h>
		145	# include <sys/types.h>
		146	# endif
74	# include <sys/stat.h>	147	# include <sys/stat.h>
		148	#endif
		149
		150	#ifdef __cplusplus
		151	# define EV_DEFARG(x) = x
		152	#else
		153	# define EV_DEFARG(x)
75	#endif	154	#endif
76		155
77	/* support multiple event loops? */	156	/* support multiple event loops? */
78	#if EV_MULTIPLICITY	157	#if EV_MULTIPLICITY
79	struct ev_loop;	158	struct ev_loop;
80	# define EV_P struct ev_loop *loop	159	# define EV_P struct ev_loop *loop
81	# define EV_P_ EV_P,	160	# define EV_P_ EV_P,
82	# define EV_A loop	161	# define EV_A loop
83	# define EV_A_ EV_A,	162	# define EV_A_ EV_A,
		163	# define EV_DEFAULT_UC ev_default_loop_uc ()
		164	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
84	# define EV_DEFAULT ev_default_loop (0)	165	# define EV_DEFAULT ev_default_loop (0)
85	# define EV_DEFAULT_ EV_DEFAULT,	166	# define EV_DEFAULT_ EV_DEFAULT,
		167	# define EV_PDEF EV_P EV_DEFARG (EV_DEFAULT_UC)
86	#else	168	#else
87	# define EV_P void	169	# define EV_P void
88	# define EV_P_	170	# define EV_P_
89	# define EV_A	171	# define EV_A
90	# define EV_A_	172	# define EV_A_
91	# define EV_DEFAULT	173	# define EV_DEFAULT
92	# define EV_DEFAULT_	174	# define EV_DEFAULT_
93		175	# define EV_DEFAULT_UC
		176	# define EV_DEFAULT_UC_
		177	# define EV_PDEF EV_P
94	# undef EV_EMBED_ENABLE	178	# undef EV_EMBED_ENABLE
95	#endif	179	#endif
96		180
		181	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		182	# define EV_INLINE static inline
		183	#else
		184	# define EV_INLINE static
		185	#endif
		186
		187	#ifndef EV_PROTOTYPES
		188	# define EV_PROTOTYPES 1
		189	#endif
		190
		191	/*****************************************************************************/
		192
		193	#define EV_VERSION_MAJOR 4
		194	#define EV_VERSION_MINOR 0
		195
97	/* eventmask, revents, events... */	196	/* eventmask, revents, events... */
		197	enum {
98	#define EV_UNDEF -1L /* guaranteed to be invalid */	198	EV_UNDEF = -1, /* guaranteed to be invalid */
99	#define EV_NONE 0x00L /* no events */	199	EV_NONE = 0x00, /* no events */
100	#define EV_READ 0x01L /* ev_io detected read will not block */	200	EV_READ = 0x01, /* ev_io detected read will not block */
101	#define EV_WRITE 0x02L /* ev_io detected write will not block */	201	EV_WRITE = 0x02, /* ev_io detected write will not block */
		202	EV__IOFDSET = 0x80, /* internal use only */
		203	EV_IO = EV_READ, /* alias for type-detection */
102	#define EV_TIMEOUT 0x00000100L /* timer timed out */	204	EV_TIMER = 0x00000100, /* timer timed out */
		205	#if EV_COMPAT3
		206	EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
		207	#endif
103	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	208	EV_PERIODIC = 0x00000200, /* periodic timer timed out */
104	#define EV_SIGNAL 0x00000400L /* signal was received */	209	EV_SIGNAL = 0x00000400, /* signal was received */
105	#define EV_CHILD 0x00000800L /* child/pid had status change */	210	EV_CHILD = 0x00000800, /* child/pid had status change */
106	#define EV_STAT 0x00001000L /* stat data changed */	211	EV_STAT = 0x00001000, /* stat data changed */
107	#define EV_IDLE 0x00002000L /* event loop is idling */	212	EV_IDLE = 0x00002000, /* event loop is idling */
108	#define EV_PREPARE 0x00004000L /* event loop about to poll */	213	EV_PREPARE = 0x00004000, /* event loop about to poll */
109	#define EV_CHECK 0x00008000L /* event loop finished poll */	214	EV_CHECK = 0x00008000, /* event loop finished poll */
110	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */	215	EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
111	#define EV_FORK 0x00020000L /* event loop resumed in child */	216	EV_FORK = 0x00020000, /* event loop resumed in child */
		217	EV_ASYNC = 0x00040000, /* async intra-loop signal */
		218	EV_CUSTOM = 0x01000000, /* for use by user code */
112	#define EV_ERROR 0x80000000L /* sent when an error occurs */	219	EV_ERROR = 0x80000000 /* sent when an error occurs */
		220	};
113		221
114	/* can be used to add custom fields to all watchers, while losing binary compatibility */	222	/* can be used to add custom fields to all watchers, while losing binary compatibility */
115	#ifndef EV_COMMON	223	#ifndef EV_COMMON
116	# define EV_COMMON void *data;	224	# define EV_COMMON void *data;
117	#endif	225	#endif
118	#ifndef EV_PROTOTYPES
119	# define EV_PROTOTYPES 1
120	#endif
121
122	#define EV_VERSION_MAJOR 1
123	#define EV_VERSION_MINOR 1
124		226
125	#ifndef EV_CB_DECLARE	227	#ifndef EV_CB_DECLARE
126	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	228	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
127	#endif	229	#endif
128	#ifndef EV_CB_INVOKE	230	#ifndef EV_CB_INVOKE
129	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	231	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
130	#endif	232	#endif
131		233
		234	/* not official, do not use */
		235	#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
		236
132	/*	237	/*
133	* struct member types:	238	* struct member types:
134	* private: you can look at them, but not change them, and they might not mean anything to you.	239	* private: you may look at them, but not change them,
		240	* and they might not mean anything to you.
135	* ro: can be read anytime, but only changed when the watcher isn't active	241	* ro: can be read anytime, but only changed when the watcher isn't active.
136	* rw: can be read and modified anytime, even when the watcher is active	242	* rw: can be read and modified anytime, even when the watcher is active.
		243	*
		244	* some internal details that might be helpful for debugging:
		245	*
		246	* active is either 0, which means the watcher is not active,
		247	* or the array index of the watcher (periodics, timers)
		248	* or the array index + 1 (most other watchers)
		249	* or simply 1 for watchers that aren't in some array.
		250	* pending is either 0, in which case the watcher isn't,
		251	* or the array index + 1 in the pendings array.
137	*/	252	*/
		253
		254	#if EV_MINPRI == EV_MAXPRI
		255	# define EV_DECL_PRIORITY
		256	#elif !defined (EV_DECL_PRIORITY)
		257	# define EV_DECL_PRIORITY int priority;
		258	#endif
138		259
139	/* shared by all watchers */	260	/* shared by all watchers */
140	#define EV_WATCHER(type) \	261	#define EV_WATCHER(type) \
141	int active; /* private */ \	262	int active; /* private */ \
142	int pending; /* private */ \	263	int pending; /* private */ \
143	int priority; /* private */ \	264	EV_DECL_PRIORITY /* private */ \
144	EV_COMMON /* rw */ \	265	EV_COMMON /* rw */ \
145	EV_CB_DECLARE (type) /* private */	266	EV_CB_DECLARE (type) /* private */
146		267
147	#define EV_WATCHER_LIST(type) \	268	#define EV_WATCHER_LIST(type) \
148	EV_WATCHER (type) \	269	EV_WATCHER (type) \
193	/* revent EV_PERIODIC */	314	/* revent EV_PERIODIC */
194	typedef struct ev_periodic	315	typedef struct ev_periodic
195	{	316	{
196	EV_WATCHER_TIME (ev_periodic)	317	EV_WATCHER_TIME (ev_periodic)
197		318
		319	ev_tstamp offset; /* rw */
198	ev_tstamp interval; /* rw */	320	ev_tstamp interval; /* rw */
199	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	321	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
200	} ev_periodic;	322	} ev_periodic;
201		323
202	/* invoked when the given signal has been received */	324	/* invoked when the given signal has been received */
…		…
213	/* does not support priorities */	335	/* does not support priorities */
214	typedef struct ev_child	336	typedef struct ev_child
215	{	337	{
216	EV_WATCHER_LIST (ev_child)	338	EV_WATCHER_LIST (ev_child)
217		339
		340	int flags; /* private */
218	int pid; /* ro */	341	int pid; /* ro */
219	int rpid; /* rw, holds the received pid */	342	int rpid; /* rw, holds the received pid */
220	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	343	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
221	} ev_child;	344	} ev_child;
222		345
…		…
281	/* the callback gets invoked when the event loop has handled events, and can be 0 */	404	/* the callback gets invoked when the event loop has handled events, and can be 0 */
282	typedef struct ev_embed	405	typedef struct ev_embed
283	{	406	{
284	EV_WATCHER (ev_embed)	407	EV_WATCHER (ev_embed)
285		408
286	ev_io io; /* private */
287	struct ev_loop loop; / ro */	409	struct ev_loop other; / ro */
		410	ev_io io; /* private */
		411	ev_prepare prepare; /* private */
		412	ev_check check; /* unused */
		413	ev_timer timer; /* unused */
		414	ev_periodic periodic; /* unused */
		415	ev_idle idle; /* unused */
		416	ev_fork fork; /* private */
288	} ev_embed;	417	} ev_embed;
		418	#endif
		419
		420	#if EV_ASYNC_ENABLE
		421	/* invoked when somebody calls ev_async_send on the watcher */
		422	/* revent EV_ASYNC */
		423	typedef struct ev_async
		424	{
		425	EV_WATCHER (ev_async)
		426
		427	EV_ATOMIC_T sent; /* private */
		428	} ev_async;
		429
		430	# define ev_async_pending(w) (+(w)->sent)
289	#endif	431	#endif
290		432
291	/* the presence of this union forces similar struct layout */	433	/* the presence of this union forces similar struct layout */
292	union ev_any_watcher	434	union ev_any_watcher
293	{	435	{
…		…
311	struct ev_fork fork;	453	struct ev_fork fork;
312	#endif	454	#endif
313	#if EV_EMBED_ENABLE	455	#if EV_EMBED_ENABLE
314	struct ev_embed embed;	456	struct ev_embed embed;
315	#endif	457	#endif
		458	#if EV_ASYNC_ENABLE
		459	struct ev_async async;
		460	#endif
316	};	461	};
317		462
318	/* bits for ev_default_loop and ev_loop_new */	463	/* flag bits for ev_default_loop and ev_loop_new */
		464	enum {
319	/* the default */	465	/* the default */
320	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	466	EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
321	/* flag bits */	467	/* flag bits */
322	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	468	EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
323	#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */	469	EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
		470	/* debugging/feature disable */
		471	EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
		472	#if EV_COMPAT3
		473	EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
		474	#endif
		475	EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */
		476	};
		477
324	/* method bits to be ored together */	478	/* method bits to be ored together */
		479	enum {
325	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	480	EVBACKEND_SELECT = 0x00000001U, /* about anywhere */
326	#define EVBACKEND_POLL 0x00000002UL /* !win */	481	EVBACKEND_POLL = 0x00000002U, /* !win */
327	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	482	EVBACKEND_EPOLL = 0x00000004U, /* linux */
328	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	483	EVBACKEND_KQUEUE = 0x00000008U, /* bsd */
329	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	484	EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 / / NYI */
330	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	485	EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
		486	EVBACKEND_ALL = 0x0000003FU
		487	};
331		488
332	#if EV_PROTOTYPES	489	#if EV_PROTOTYPES
333	int ev_version_major (void);	490	int ev_version_major (void);
334	int ev_version_minor (void);	491	int ev_version_minor (void);
335		492
336	unsigned int ev_supported_backends (void);	493	unsigned int ev_supported_backends (void);
337	unsigned int ev_recommended_backends (void);	494	unsigned int ev_recommended_backends (void);
338	unsigned int ev_embeddable_backends (void);	495	unsigned int ev_embeddable_backends (void);
339		496
340	ev_tstamp ev_time (void);	497	ev_tstamp ev_time (void);
		498	void ev_sleep (ev_tstamp delay); /* sleep for a while */
341		499
342	/* Sets the allocation function to use, works like realloc.	500	/* Sets the allocation function to use, works like realloc.
343	* It is used to allocate and free memory.	501	* It is used to allocate and free memory.
344	* If it returns zero when memory needs to be allocated, the library might abort	502	* If it returns zero when memory needs to be allocated, the library might abort
345	* or take some potentially destructive action.	503	* or take some potentially destructive action.
…		…
351	* retryable syscall error	509	* retryable syscall error
352	* (such as failed select, poll, epoll_wait)	510	* (such as failed select, poll, epoll_wait)
353	*/	511	*/
354	void ev_set_syserr_cb (void (cb)(const char msg));	512	void ev_set_syserr_cb (void (cb)(const char msg));
355		513
356	# if EV_MULTIPLICITY	514	#if EV_MULTIPLICITY
		515	EV_INLINE struct ev_loop *
		516	ev_default_loop_uc (void)
		517	{
		518	extern struct ev_loop *ev_default_loop_ptr;
		519
		520	return ev_default_loop_ptr;
		521	}
		522
357	/* the default loop is the only one that handles signals and child watchers */	523	/* the default loop is the only one that handles signals and child watchers */
358	/* you can call this as often as you like */	524	/* you can call this as often as you like */
359	static struct ev_loop *	525	EV_INLINE struct ev_loop *
360	ev_default_loop (unsigned int flags)	526	ev_default_loop (unsigned int flags EV_DEFARG (0))
361	{	527	{
362	extern struct ev_loop *ev_default_loop_ptr;	528	struct ev_loop *loop = ev_default_loop_uc ();
		529
		530	if (!loop)
		531	{
363	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	532	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
364		533
365	if (!ev_default_loop_ptr)
366	ev_default_loop_init (flags);	534	loop = ev_default_loop_init (flags);
		535	}
367		536
368	return ev_default_loop_ptr;	537	return loop;
369	}	538	}
370		539
371	/* create and destroy alternative loops that don't handle signals */	540	/* create and destroy alternative loops that don't handle signals */
372	struct ev_loop *ev_loop_new (unsigned int flags);	541	struct ev_loop *ev_loop_new (unsigned int flags EV_DEFARG (0));
373	void ev_loop_destroy (EV_P);	542	void ev_loop_destroy (EV_PDEF);
374	void ev_loop_fork (EV_P);	543	void ev_loop_fork (EV_PDEF);
375		544
376	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	545	ev_tstamp ev_now (EV_PDEF); /* time w.r.t. timers and the eventloop, updated after each poll */
377		546
378	# else	547	#else
379		548
380	int ev_default_loop (unsigned int flags); /* returns true when successful */	549	int ev_default_loop (unsigned int flags EV_DEFARG (0)); /* returns true when successful */
381		550
382	static ev_tstamp	551	EV_INLINE ev_tstamp
383	ev_now (void)	552	ev_now (void)
384	{	553	{
385	extern ev_tstamp ev_rt_now;	554	extern ev_tstamp ev_rt_now;
386		555
387	return ev_rt_now;	556	return ev_rt_now;
388	}	557	}
		558	#endif /* multiplicity */
		559
		560	EV_INLINE int
		561	ev_is_default_loop (EV_PDEF)
		562	{
		563	#if EV_MULTIPLICITY
		564	extern struct ev_loop *ev_default_loop_ptr;
		565
		566	return !!(EV_A == ev_default_loop_ptr);
		567	#else
		568	return 1;
389	# endif	569	#endif
		570	}
390		571
391	void ev_default_destroy (void); /* destroy the default loop */	572	void ev_default_destroy (void); /* destroy the default loop */
392	/* this needs to be called after fork, to duplicate the default loop */	573	/* this needs to be called after fork, to duplicate the default loop */
393	/* if you create alternative loops you have to call ev_loop_fork on them */	574	/* if you create alternative loops you have to call ev_loop_fork on them */
394	/* you can call it in either the parent or the child */	575	/* you can call it in either the parent or the child */
395	/* you can actually call it at any time, anywhere :) */	576	/* you can actually call it at any time, anywhere :) */
396	void ev_default_fork (void);	577	void ev_default_fork (void);
397		578
398	unsigned int ev_backend (EV_P);	579	unsigned int ev_backend (EV_PDEF); /* backend in use by loop */
399	unsigned int ev_loop_count (EV_P);
400	#endif
401		580
402	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	581	void ev_now_update (EV_PDEF); /* update event loop time */
403	#define EVLOOP_ONESHOT 2 /* block once only */	582
404	#define EVUNLOOP_CANCEL 0 /* undo unloop */	583	#if EV_WALK_ENABLE
405	#define EVUNLOOP_ONE 1 /* unloop once */	584	/* walk (almost) all watchers in the loop of a given type, invoking the */
		585	/* callback on every such watcher. The callback might stop the watcher, */
		586	/* but do nothing else with the loop */
		587	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
		588	#endif
		589
		590	#endif /* prototypes */
		591
		592	/* ev_run flags values */
		593	enum {
		594	EVRUN_NOWAIT = 1, /* do not block/wait */
		595	EVRUN_ONCE = 2 /* block once only */
		596	};
		597
		598	/* ev_break how values */
		599	enum {
		600	EVBREAK_CANCEL = 0, /* undo unloop */
		601	EVBREAK_ONE = 1, /* unloop once */
406	#define EVUNLOOP_ALL 2 /* unloop all loops */	602	EVBREAK_ALL = 2 /* unloop all loops */
		603	};
407		604
408	#if EV_PROTOTYPES	605	#if EV_PROTOTYPES
409	void ev_loop (EV_P_ int flags);	606	void ev_run (EV_P_ int flags EV_DEFARG (0));
410	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 */	607	void ev_break (EV_P_ int how EV_DEFARG (EVBREAK_ONE)); /* break out of the loop */
411		608
412	/*	609	/*
413	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	610	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
414	* keeps one reference. if you have a long-runing watcher you never unregister that	611	* keeps one reference. if you have a long-running watcher you never unregister that
415	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	612	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
416	*/	613	*/
417	void ev_ref (EV_P);	614	void ev_ref (EV_PDEF);
418	void ev_unref (EV_P);	615	void ev_unref (EV_PDEF);
419		616
		617	/*
420	/* convinience function, wait for a single event, without registering an event watcher */	618	* convenience function, wait for a single event, without registering an event watcher
421	/* if timeout is < 0, do wait indefinitely */	619	* if timeout is < 0, do wait indefinitely
		620	*/
422	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	621	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
		622
		623	# if EV_FEATURE_API
		624	unsigned int ev_iteration (EV_PDEF); /* number of loop iterations */
		625	unsigned int ev_depth (EV_PDEF); /* #ev_loop enters - #ev_loop leaves */
		626	void ev_verify (EV_PDEF); /* abort if loop data corrupted */
		627
		628	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		629	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		630
		631	/* advanced stuff for threading etc. support, see docs */
		632	void ev_set_userdata (EV_P_ void *data);
		633	void *ev_userdata (EV_PDEF);
		634	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
		635	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));
		636
		637	unsigned int ev_pending_count (EV_PDEF); /* number of pending events, if any */
		638	void ev_invoke_pending (EV_PDEF); /* invoke all pending watchers */
		639
		640	/*
		641	* stop/start the timer handling.
		642	*/
		643	void ev_suspend (EV_PDEF);
		644	void ev_resume (EV_PDEF);
		645	#endif
		646
423	#endif	647	#endif
424		648
425	/* these may evaluate ev multiple times, and the other arguments at most once */	649	/* these may evaluate ev multiple times, and the other arguments at most once */
426	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	650	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
427	#define ev_init(ev,cb_) do { \	651	#define ev_init(ev,cb_) do { \
428	((ev_watcher )(void )(ev))->active = \	652	((ev_watcher )(void )(ev))->active = \
429	((ev_watcher )(void )(ev))->pending = \	653	((ev_watcher )(void )(ev))->pending = 0; \
430	((ev_watcher )(void )(ev))->priority = 0; \	654	ev_set_priority ((ev), 0); \
431	ev_set_cb ((ev), cb_); \	655	ev_set_cb ((ev), cb_); \
432	} while (0)	656	} while (0)
433		657
434	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	658	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
435	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	659	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
436	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	660	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
437	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	661	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
438	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	662	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
439	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)	663	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
440	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	664	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
441	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	665	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
442	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	666	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
443	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	667	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
444	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	668	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		669	#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
445		670
446	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	671	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
447	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	672	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
448	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	673	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
449	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	674	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
450	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	675	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
451	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	676	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
452	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	677	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
453	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	678	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
454	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	679	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
455	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	680	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
456	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	681	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		682	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
457		683
458	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	684	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
459	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	685	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
460		686
461	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
462	#define ev_cb(ev) (ev)->cb /* rw */	687	#define ev_cb(ev) (ev)->cb /* rw */
		688
		689	#if EV_MINPRI == EV_MAXPRI
		690	# define ev_priority(ev) ((ev), EV_MINPRI)
		691	# define ev_set_priority(ev,pri) ((ev), (pri))
		692	#else
		693	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
463	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)	694	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		695	#endif
		696
		697	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
464		698
465	#ifndef ev_set_cb	699	#ifndef ev_set_cb
466	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	700	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
467	#endif	701	#endif
468		702
469	/* stopping (enabling, adding) a watcher does nothing if it is already running */	703	/* stopping (enabling, adding) a watcher does nothing if it is already running */
470	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	704	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
471	#if EV_PROTOTYPES	705	#if EV_PROTOTYPES
472		706
473	/* feeds an event into a watcher as if the event actually occured */	707	/* feeds an event into a watcher as if the event actually occured */
474	/* accepts any ev_watcher type */	708	/* accepts any ev_watcher type */
475	void ev_feed_event (EV_P_ void *w, int revents);	709	void ev_feed_event (EV_P_ void *w, int revents);
476	void ev_feed_fd_event (EV_P_ int fd, int revents);	710	void ev_feed_fd_event (EV_P_ int fd, int revents);
		711	#if EV_SIGNAL_ENABLE
477	void ev_feed_signal_event (EV_P_ int signum);	712	void ev_feed_signal_event (EV_P_ int signum);
		713	#endif
		714	void ev_invoke (EV_P_ void *w, int revents);
478	void ev_clear_pending (EV_P_ void *w, int invoke);	715	int ev_clear_pending (EV_P_ void *w);
479		716
480	void ev_io_start (EV_P_ ev_io *w);	717	void ev_io_start (EV_P_ ev_io *w);
481	void ev_io_stop (EV_P_ ev_io *w);	718	void ev_io_stop (EV_P_ ev_io *w);
482		719
483	void ev_timer_start (EV_P_ ev_timer *w);	720	void ev_timer_start (EV_P_ ev_timer *w);
484	void ev_timer_stop (EV_P_ ev_timer *w);	721	void ev_timer_stop (EV_P_ ev_timer *w);
485	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	722	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
486	void ev_timer_again (EV_P_ ev_timer *w);	723	void ev_timer_again (EV_P_ ev_timer *w);
		724	/* return remaining time */
		725	ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
487		726
488	#if EV_PERIODIC_ENABLE	727	#if EV_PERIODIC_ENABLE
489	void ev_periodic_start (EV_P_ ev_periodic *w);	728	void ev_periodic_start (EV_P_ ev_periodic *w);
490	void ev_periodic_stop (EV_P_ ev_periodic *w);	729	void ev_periodic_stop (EV_P_ ev_periodic *w);
491	void ev_periodic_again (EV_P_ ev_periodic *w);	730	void ev_periodic_again (EV_P_ ev_periodic *w);
492	#endif	731	#endif
493		732
494	/* only supported in the default loop */	733	/* only supported in the default loop */
		734	#if EV_SIGNAL_ENABLE
495	void ev_signal_start (EV_P_ ev_signal *w);	735	void ev_signal_start (EV_P_ ev_signal *w);
496	void ev_signal_stop (EV_P_ ev_signal *w);	736	void ev_signal_stop (EV_P_ ev_signal *w);
		737	#endif
497		738
498	/* only supported in the default loop */	739	/* only supported in the default loop */
		740	# if EV_CHILD_ENABLE
499	void ev_child_start (EV_P_ ev_child *w);	741	void ev_child_start (EV_P_ ev_child *w);
500	void ev_child_stop (EV_P_ ev_child *w);	742	void ev_child_stop (EV_P_ ev_child *w);
		743	# endif
501		744
502	# if EV_STAT_ENABLE	745	# if EV_STAT_ENABLE
503	void ev_stat_start (EV_P_ ev_stat *w);	746	void ev_stat_start (EV_P_ ev_stat *w);
504	void ev_stat_stop (EV_P_ ev_stat *w);	747	void ev_stat_stop (EV_P_ ev_stat *w);
505	void ev_stat_stat (EV_P_ ev_stat *w);	748	void ev_stat_stat (EV_P_ ev_stat *w);
…		…
508	# if EV_IDLE_ENABLE	751	# if EV_IDLE_ENABLE
509	void ev_idle_start (EV_P_ ev_idle *w);	752	void ev_idle_start (EV_P_ ev_idle *w);
510	void ev_idle_stop (EV_P_ ev_idle *w);	753	void ev_idle_stop (EV_P_ ev_idle *w);
511	# endif	754	# endif
512		755
		756	#if EV_PREPARE_ENABLE
513	void ev_prepare_start (EV_P_ ev_prepare *w);	757	void ev_prepare_start (EV_P_ ev_prepare *w);
514	void ev_prepare_stop (EV_P_ ev_prepare *w);	758	void ev_prepare_stop (EV_P_ ev_prepare *w);
		759	#endif
515		760
		761	#if EV_CHECK_ENABLE
516	void ev_check_start (EV_P_ ev_check *w);	762	void ev_check_start (EV_P_ ev_check *w);
517	void ev_check_stop (EV_P_ ev_check *w);	763	void ev_check_stop (EV_P_ ev_check *w);
		764	#endif
518		765
519	# if EV_FORK_ENABLE	766	# if EV_FORK_ENABLE
520	void ev_fork_start (EV_P_ ev_fork *w);	767	void ev_fork_start (EV_P_ ev_fork *w);
521	void ev_fork_stop (EV_P_ ev_fork *w);	768	void ev_fork_stop (EV_P_ ev_fork *w);
522	# endif	769	# endif
…		…
526	void ev_embed_start (EV_P_ ev_embed *w);	773	void ev_embed_start (EV_P_ ev_embed *w);
527	void ev_embed_stop (EV_P_ ev_embed *w);	774	void ev_embed_stop (EV_P_ ev_embed *w);
528	void ev_embed_sweep (EV_P_ ev_embed *w);	775	void ev_embed_sweep (EV_P_ ev_embed *w);
529	# endif	776	# endif
530		777
		778	# if EV_ASYNC_ENABLE
		779	void ev_async_start (EV_P_ ev_async *w);
		780	void ev_async_stop (EV_P_ ev_async *w);
		781	void ev_async_send (EV_P_ ev_async *w);
		782	# endif
		783
		784	#if EV_COMPAT3
		785	#define EVLOOP_NONBLOCK EVRUN_NOWAIT
		786	#define EVLOOP_ONESHOT EVRUN_ONCE
		787	#define EVUNLOOP_CANCEL EVBREAK_CANCEL
		788	#define EVUNLOOP_ONE EVBREAK_ONE
		789	#define EVUNLOOP_ALL EVBREAK_ALL
		790	#if EV_PROTOTYPES
		791	EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
		792	EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
		793	#if EV_FEATURE_API
		794	EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); }
		795	EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); }
		796	EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
		797	#endif
		798	#endif
		799	#else
		800	typedef struct ev_loop ev_loop;
		801	#endif
		802
531	#endif	803	#endif
532		804
533	#ifdef __cplusplus	805	#ifdef __cplusplus
534	}	806	}
535	#endif	807	#endif

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Comparing libev/ev.h (file contents): Revision 1.79 by root, Sat Dec 8 03:53:36 2007 UTC vs. Revision 1.144 by root, Fri Oct 22 06:02:27 2010 UTC

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Comparing libev/ev.h (file contents):
Revision 1.79 by root, Sat Dec 8 03:53:36 2007 UTC vs.
Revision 1.144 by root, Fri Oct 22 06:02:27 2010 UTC