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

Comparing libev/ev.h (file contents):
Revision 1.91 by root, Fri Jan 25 15:45:09 2008 UTC vs.
Revision 1.141 by root, Thu Oct 21 12:32:47 2010 UTC

…		…
1	/*	1	/*
2	* libev native API header	2	* libev native API header
3	*	3	*
4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>
5	* All rights reserved.	5	* All rights reserved.
6	*	6	*
7	* Redistribution and use in source and binary forms, with or without modifica-	7	* Redistribution and use in source and binary forms, with or without modifica-
8	* tion, are permitted provided that the following conditions are met:	8	* tion, are permitted provided that the following conditions are met:
9	*	9	*
35	* and other provisions required by the GPL. If you do not delete the	35	* and other provisions required by the GPL. If you do not delete the
36	* provisions above, a recipient may use your version of this file under	36	* provisions above, a recipient may use your version of this file under
37	* either the BSD or the GPL.	37	* either the BSD or the GPL.
38	*/	38	*/
39		39
40	#ifndef EV_H__	40	#ifndef EV_H_
41	#define EV_H__	41	#define EV_H_
42		42
43	#ifdef __cplusplus	43	#ifdef __cplusplus
44	extern "C" {	44	extern "C" {
45	#endif	45	#endif
46		46
		47	/*****************************************************************************/
		48
		49	#ifndef EV_FEATURES
		50	# define EV_FEATURES 0x7f
		51	#endif
		52
		53	#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
		54	#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
		55	#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
		56	#define EV_FEATURE_API ((EV_FEATURES) & 8)
		57	#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
		58	#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
		59	#define EV_FEATURE_OS ((EV_FEATURES) & 64)
		60
		61	/* these priorities are inclusive, higher priorities will be invoked earlier */
		62	#ifndef EV_MINPRI
		63	# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
		64	#endif
		65	#ifndef EV_MAXPRI
		66	# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
		67	#endif
		68
		69	#ifndef EV_MULTIPLICITY
		70	# define EV_MULTIPLICITY EV_FEATURE_CONFIG
		71	#endif
		72
		73	#ifndef EV_PERIODIC_ENABLE
		74	# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
		75	#endif
		76
		77	#ifndef EV_STAT_ENABLE
		78	# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
		79	#endif
		80
		81	#ifndef EV_PREPARE_ENABLE
		82	# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
		83	#endif
		84
		85	#ifndef EV_CHECK_ENABLE
		86	# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
		87	#endif
		88
		89	#ifndef EV_IDLE_ENABLE
		90	# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
		91	#endif
		92
		93	#ifndef EV_FORK_ENABLE
		94	# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
		95	#endif
		96
		97	#ifndef EV_SIGNAL_ENABLE
		98	# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
		99	#endif
		100
		101	#ifndef EV_CHILD_ENABLE
		102	# ifdef _WIN32
		103	# define EV_CHILD_ENABLE 0
		104	# else
		105	# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
		106	#endif
		107	#endif
		108
		109	#ifndef EV_ASYNC_ENABLE
		110	# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
		111	#endif
		112
		113	#ifndef EV_EMBED_ENABLE
		114	# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
		115	#endif
		116
		117	#ifndef EV_WALK_ENABLE
		118	# define EV_WALK_ENABLE 0 /* not yet */
		119	#endif
		120
		121	/*****************************************************************************/
		122
		123	#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
		124	# undef EV_SIGNAL_ENABLE
		125	# define EV_SIGNAL_ENABLE 1
		126	#endif
		127
		128	/*****************************************************************************/
		129
47	typedef double ev_tstamp;	130	typedef double ev_tstamp;
48		131
49	/* these priorities are inclusive, higher priorities will be called earlier */	132	#ifndef EV_ATOMIC_T
50	#ifndef EV_MINPRI	133	# include <signal.h>
51	# define EV_MINPRI -2	134	# define EV_ATOMIC_T sig_atomic_t volatile
52	#endif	135	#endif
53	#ifndef EV_MAXPRI
54	# define EV_MAXPRI +2
55	#endif
56
57	#ifndef EV_MULTIPLICITY
58	# define EV_MULTIPLICITY 1
59	#endif
60
61	#ifndef EV_PERIODIC_ENABLE
62	# define EV_PERIODIC_ENABLE 1
63	#endif
64
65	#ifndef EV_STAT_ENABLE
66	# define EV_STAT_ENABLE 1
67	#endif
68
69	#ifndef EV_IDLE_ENABLE
70	# define EV_IDLE_ENABLE 1
71	#endif
72
73	#ifndef EV_FORK_ENABLE
74	# define EV_FORK_ENABLE 1
75	#endif
76
77	#ifndef EV_EMBED_ENABLE
78	# define EV_EMBED_ENABLE 1
79	#endif
80
81	/*****************************************************************************/
82		136
83	#if EV_STAT_ENABLE	137	#if EV_STAT_ENABLE
		138	# ifdef _WIN32
		139	# include <time.h>
		140	# include <sys/types.h>
		141	# endif
84	# include <sys/stat.h>	142	# include <sys/stat.h>
85	#endif	143	#endif
86		144
87	/* support multiple event loops? */	145	/* support multiple event loops? */
88	#if EV_MULTIPLICITY	146	#if EV_MULTIPLICITY
89	struct ev_loop;	147	struct ev_loop;
90	# define EV_P struct ev_loop *loop	148	# define EV_P struct ev_loop *loop
91	# define EV_P_ EV_P,	149	# define EV_P_ EV_P,
92	# define EV_A loop	150	# define EV_A loop
93	# define EV_A_ EV_A,	151	# define EV_A_ EV_A,
		152	# define EV_DEFAULT_UC ev_default_loop_uc ()
		153	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
94	# define EV_DEFAULT ev_default_loop (0)	154	# define EV_DEFAULT ev_default_loop (0)
95	# define EV_DEFAULT_ EV_DEFAULT,	155	# define EV_DEFAULT_ EV_DEFAULT,
96	#else	156	#else
97	# define EV_P void	157	# define EV_P void
98	# define EV_P_	158	# define EV_P_
99	# define EV_A	159	# define EV_A
100	# define EV_A_	160	# define EV_A_
101	# define EV_DEFAULT	161	# define EV_DEFAULT
102	# define EV_DEFAULT_	162	# define EV_DEFAULT_
103		163	# define EV_DEFAULT_UC
		164	# define EV_DEFAULT_UC_
104	# undef EV_EMBED_ENABLE	165	# undef EV_EMBED_ENABLE
105	#endif	166	#endif
106		167
		168	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		169	# define EV_INLINE static inline
		170	#else
		171	# define EV_INLINE static
		172	#endif
		173
		174	#ifndef EV_PROTOTYPES
		175	# define EV_PROTOTYPES 1
		176	#endif
		177
		178	/*****************************************************************************/
		179
		180	#define EV_VERSION_MAJOR 4
		181	#define EV_VERSION_MINOR 0
		182
107	/* eventmask, revents, events... */	183	/* eventmask, revents, events... */
		184	//TODO: enum?
108	#define EV_UNDEF -1L /* guaranteed to be invalid */	185	#define EV_UNDEF -1 /* guaranteed to be invalid */
109	#define EV_NONE 0x00L /* no events */	186	#define EV_NONE 0x00 /* no events */
110	#define EV_READ 0x01L /* ev_io detected read will not block */	187	#define EV_READ 0x01 /* ev_io detected read will not block */
111	#define EV_WRITE 0x02L /* ev_io detected write will not block */	188	#define EV_WRITE 0x02 /* ev_io detected write will not block */
112	#define EV_IOFDSET 0x80L /* internal use only */	189	#define EV__IOFDSET 0x80 /* internal use only */
		190	#define EV_IO EV_READ /* alias for type-detection */
113	#define EV_TIMEOUT 0x00000100L /* timer timed out */	191	#define EV_TIMER 0x00000100 /* timer timed out */
		192	#define EV_TIMEOUT EV_TIMER /* pre 4.0 API compatibility */
114	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	193	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
115	#define EV_SIGNAL 0x00000400L /* signal was received */	194	#define EV_SIGNAL 0x00000400 /* signal was received */
116	#define EV_CHILD 0x00000800L /* child/pid had status change */	195	#define EV_CHILD 0x00000800 /* child/pid had status change */
117	#define EV_STAT 0x00001000L /* stat data changed */	196	#define EV_STAT 0x00001000 /* stat data changed */
118	#define EV_IDLE 0x00002000L /* event loop is idling */	197	#define EV_IDLE 0x00002000 /* event loop is idling */
119	#define EV_PREPARE 0x00004000L /* event loop about to poll */	198	#define EV_PREPARE 0x00004000 /* event loop about to poll */
120	#define EV_CHECK 0x00008000L /* event loop finished poll */	199	#define EV_CHECK 0x00008000 /* event loop finished poll */
121	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */	200	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
122	#define EV_FORK 0x00020000L /* event loop resumed in child */	201	#define EV_FORK 0x00020000 /* event loop resumed in child */
		202	#define EV_ASYNC 0x00040000 /* async intra-loop signal */
		203	#define EV_CUSTOM 0x01000000 /* for use by user code */
123	#define EV_ERROR 0x80000000L /* sent when an error occurs */	204	#define EV_ERROR 0x80000000 /* sent when an error occurs */
124		205
125	/* can be used to add custom fields to all watchers, while losing binary compatibility */	206	/* can be used to add custom fields to all watchers, while losing binary compatibility */
126	#ifndef EV_COMMON	207	#ifndef EV_COMMON
127	# define EV_COMMON void *data;	208	# define EV_COMMON void *data;
128	#endif	209	#endif
129	#ifndef EV_PROTOTYPES
130	# define EV_PROTOTYPES 1
131	#endif
132
133	#define EV_VERSION_MAJOR 3
134	#define EV_VERSION_MINOR 0
135		210
136	#ifndef EV_CB_DECLARE	211	#ifndef EV_CB_DECLARE
137	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	212	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
138	#endif	213	#endif
139	#ifndef EV_CB_INVOKE	214	#ifndef EV_CB_INVOKE
140	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	215	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
141	#endif	216	#endif
142		217
		218	/* not official, do not use */
		219	#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
		220
143	/*	221	/*
144	* struct member types:	222	* struct member types:
145	* private: you can look at them, but not change them, and they might not mean anything to you.	223	* private: you may look at them, but not change them,
		224	* and they might not mean anything to you.
146	* ro: can be read anytime, but only changed when the watcher isn't active	225	* ro: can be read anytime, but only changed when the watcher isn't active.
147	* rw: can be read and modified anytime, even when the watcher is active	226	* rw: can be read and modified anytime, even when the watcher is active.
		227	*
		228	* some internal details that might be helpful for debugging:
		229	*
		230	* active is either 0, which means the watcher is not active,
		231	* or the array index of the watcher (periodics, timers)
		232	* or the array index + 1 (most other watchers)
		233	* or simply 1 for watchers that aren't in some array.
		234	* pending is either 0, in which case the watcher isn't,
		235	* or the array index + 1 in the pendings array.
148	*/	236	*/
		237
		238	#if EV_MINPRI == EV_MAXPRI
		239	# define EV_DECL_PRIORITY
		240	#elif !defined (EV_DECL_PRIORITY)
		241	# define EV_DECL_PRIORITY int priority;
		242	#endif
149		243
150	/* shared by all watchers */	244	/* shared by all watchers */
151	#define EV_WATCHER(type) \	245	#define EV_WATCHER(type) \
152	int active; /* private */ \	246	int active; /* private */ \
153	int pending; /* private */ \	247	int pending; /* private */ \
154	int priority; /* private */ \	248	EV_DECL_PRIORITY /* private */ \
155	EV_COMMON /* rw */ \	249	EV_COMMON /* rw */ \
156	EV_CB_DECLARE (type) /* private */	250	EV_CB_DECLARE (type) /* private */
157		251
158	#define EV_WATCHER_LIST(type) \	252	#define EV_WATCHER_LIST(type) \
159	EV_WATCHER (type) \	253	EV_WATCHER (type) \
…		…
301	ev_prepare prepare; /* private */	395	ev_prepare prepare; /* private */
302	ev_check check; /* unused */	396	ev_check check; /* unused */
303	ev_timer timer; /* unused */	397	ev_timer timer; /* unused */
304	ev_periodic periodic; /* unused */	398	ev_periodic periodic; /* unused */
305	ev_idle idle; /* unused */	399	ev_idle idle; /* unused */
306	ev_fork fork; /* unused */	400	ev_fork fork; /* private */
307	} ev_embed;	401	} ev_embed;
		402	#endif
		403
		404	#if EV_ASYNC_ENABLE
		405	/* invoked when somebody calls ev_async_send on the watcher */
		406	/* revent EV_ASYNC */
		407	typedef struct ev_async
		408	{
		409	EV_WATCHER (ev_async)
		410
		411	EV_ATOMIC_T sent; /* private */
		412	} ev_async;
		413
		414	# define ev_async_pending(w) (+(w)->sent)
308	#endif	415	#endif
309		416
310	/* the presence of this union forces similar struct layout */	417	/* the presence of this union forces similar struct layout */
311	union ev_any_watcher	418	union ev_any_watcher
312	{	419	{
…		…
330	struct ev_fork fork;	437	struct ev_fork fork;
331	#endif	438	#endif
332	#if EV_EMBED_ENABLE	439	#if EV_EMBED_ENABLE
333	struct ev_embed embed;	440	struct ev_embed embed;
334	#endif	441	#endif
		442	#if EV_ASYNC_ENABLE
		443	struct ev_async async;
		444	#endif
335	};	445	};
336		446
		447	//TODO: enum?
337	/* bits for ev_default_loop and ev_loop_new */	448	/* bits for ev_default_loop and ev_loop_new */
338	/* the default */	449	/* the default */
339	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	450	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
340	/* flag bits */	451	/* flag bits */
341	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	452	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
342	#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */	453	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
		454	/* debugging/feature disable */
		455	#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */
		456	#define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */
		457	#define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */
		458	//TODO: enum?
343	/* method bits to be ored together */	459	/* method bits to be ored together */
344	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	460	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
345	#define EVBACKEND_POLL 0x00000002UL /* !win */	461	#define EVBACKEND_POLL 0x00000002U /* !win */
346	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	462	#define EVBACKEND_EPOLL 0x00000004U /* linux */
347	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	463	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
348	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	464	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
349	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	465	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
		466	#define EVBACKEND_ALL 0x0000003FU
350		467
351	#if EV_PROTOTYPES	468	#if EV_PROTOTYPES
352	int ev_version_major (void);	469	int ev_version_major (void);
353	int ev_version_minor (void);	470	int ev_version_minor (void);
354		471
…		…
371	* retryable syscall error	488	* retryable syscall error
372	* (such as failed select, poll, epoll_wait)	489	* (such as failed select, poll, epoll_wait)
373	*/	490	*/
374	void ev_set_syserr_cb (void (cb)(const char msg));	491	void ev_set_syserr_cb (void (cb)(const char msg));
375		492
376	# if EV_MULTIPLICITY	493	#if EV_MULTIPLICITY
		494	EV_INLINE struct ev_loop *
		495	ev_default_loop_uc (void)
		496	{
		497	extern struct ev_loop *ev_default_loop_ptr;
		498
		499	return ev_default_loop_ptr;
		500	}
		501
377	/* the default loop is the only one that handles signals and child watchers */	502	/* the default loop is the only one that handles signals and child watchers */
378	/* you can call this as often as you like */	503	/* you can call this as often as you like */
379	static struct ev_loop *	504	EV_INLINE struct ev_loop *
380	ev_default_loop (unsigned int flags)	505	ev_default_loop (unsigned int flags)
381	{	506	{
382	extern struct ev_loop *ev_default_loop_ptr;	507	struct ev_loop *loop = ev_default_loop_uc ();
		508
		509	if (!loop)
		510	{
383	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	511	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
384		512
385	if (!ev_default_loop_ptr)
386	ev_default_loop_init (flags);	513	loop = ev_default_loop_init (flags);
		514	}
387		515
388	return ev_default_loop_ptr;	516	return loop;
389	}	517	}
390		518
391	/* create and destroy alternative loops that don't handle signals */	519	/* create and destroy alternative loops that don't handle signals */
392	struct ev_loop *ev_loop_new (unsigned int flags);	520	struct ev_loop *ev_loop_new (unsigned int flags);
393	void ev_loop_destroy (EV_P);	521	void ev_loop_destroy (EV_P);
394	void ev_loop_fork (EV_P);	522	void ev_loop_fork (EV_P);
395		523
396	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	524	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
397		525
398	# else	526	#else
399		527
400	int ev_default_loop (unsigned int flags); /* returns true when successful */	528	int ev_default_loop (unsigned int flags); /* returns true when successful */
401		529
402	static ev_tstamp	530	EV_INLINE ev_tstamp
403	ev_now (void)	531	ev_now (void)
404	{	532	{
405	extern ev_tstamp ev_rt_now;	533	extern ev_tstamp ev_rt_now;
406		534
407	return ev_rt_now;	535	return ev_rt_now;
408	}	536	}
		537	#endif /* multiplicity */
		538
		539	EV_INLINE int
		540	ev_is_default_loop (EV_P)
		541	{
		542	#if EV_MULTIPLICITY
		543	extern struct ev_loop *ev_default_loop_ptr;
		544
		545	return !!(EV_A == ev_default_loop_ptr);
		546	#else
		547	return 1;
409	# endif	548	#endif
		549	}
410		550
411	void ev_default_destroy (void); /* destroy the default loop */	551	void ev_default_destroy (void); /* destroy the default loop */
412	/* this needs to be called after fork, to duplicate the default loop */	552	/* this needs to be called after fork, to duplicate the default loop */
413	/* if you create alternative loops you have to call ev_loop_fork on them */	553	/* if you create alternative loops you have to call ev_loop_fork on them */
414	/* you can call it in either the parent or the child */	554	/* you can call it in either the parent or the child */
415	/* you can actually call it at any time, anywhere :) */	555	/* you can actually call it at any time, anywhere :) */
416	void ev_default_fork (void);	556	void ev_default_fork (void);
417		557
418	unsigned int ev_backend (EV_P); /* backend in use by loop */	558	unsigned int ev_backend (EV_P); /* backend in use by loop */
419	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
420	#endif
421		559
		560	void ev_now_update (EV_P); /* update event loop time */
		561
		562	#if EV_WALK_ENABLE
		563	/* walk (almost) all watchers in the loop of a given type, invoking the */
		564	/* callback on every such watcher. The callback might stop the watcher, */
		565	/* but do nothing else with the loop */
		566	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
		567	#endif
		568
		569	#endif /* prototypes */
		570
		571	//TODO: enum?
422	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	572	#define EVRUN_NOWAIT 1 /* do not block/wait */
423	#define EVLOOP_ONESHOT 2 /* block once only */	573	#define EVRUN_ONCE 2 /* block once only */
		574
424	#define EVUNLOOP_CANCEL 0 /* undo unloop */	575	#define EVBREAK_CANCEL 0 /* undo unloop */
425	#define EVUNLOOP_ONE 1 /* unloop once */	576	#define EVBREAK_ONE 1 /* unloop once */
426	#define EVUNLOOP_ALL 2 /* unloop all loops */	577	#define EVBREAK_ALL 2 /* unloop all loops */
427		578
428	#if EV_PROTOTYPES	579	#if EV_PROTOTYPES
429	void ev_loop (EV_P_ int flags);	580	void ev_run (EV_P_ int flags);
430	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 */	581	void ev_break (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */
431
432	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
433	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
434		582
435	/*	583	/*
436	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	584	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
437	* keeps one reference. if you have a long-runing watcher you never unregister that	585	* keeps one reference. if you have a long-running watcher you never unregister that
438	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	586	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
439	*/	587	*/
440	void ev_ref (EV_P);	588	void ev_ref (EV_P);
441	void ev_unref (EV_P);	589	void ev_unref (EV_P);
442		590
		591	/*
443	/* convinience function, wait for a single event, without registering an event watcher */	592	* convenience function, wait for a single event, without registering an event watcher
444	/* if timeout is < 0, do wait indefinitely */	593	* if timeout is < 0, do wait indefinitely
		594	*/
445	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	595	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
		596
		597	# if EV_FEATURE_API
		598	unsigned int ev_iteration (EV_P); /* number of loop iterations */
		599	unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
		600	void ev_verify (EV_P); /* abort if loop data corrupted */
		601
		602	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		603	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		604
		605	/* advanced stuff for threading etc. support, see docs */
		606	void ev_set_userdata (EV_P_ void *data);
		607	void *ev_userdata (EV_P);
		608	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
		609	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));
		610
		611	unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
		612	void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		613
		614	/*
		615	* stop/start the timer handling.
		616	*/
		617	void ev_suspend (EV_P);
		618	void ev_resume (EV_P);
		619	#endif
		620
446	#endif	621	#endif
447		622
448	/* these may evaluate ev multiple times, and the other arguments at most once */	623	/* these may evaluate ev multiple times, and the other arguments at most once */
449	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	624	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
450	#define ev_init(ev,cb_) do { \	625	#define ev_init(ev,cb_) do { \
451	((ev_watcher )(void )(ev))->active = \	626	((ev_watcher )(void )(ev))->active = \
452	((ev_watcher )(void )(ev))->pending = \	627	((ev_watcher )(void )(ev))->pending = 0; \
453	((ev_watcher )(void )(ev))->priority = 0; \	628	ev_set_priority ((ev), 0); \
454	ev_set_cb ((ev), cb_); \	629	ev_set_cb ((ev), cb_); \
455	} while (0)	630	} while (0)
456		631
457	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV_IOFDSET; } while (0)	632	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
458	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	633	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
459	#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	634	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
460	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	635	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
461	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)	636	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
462	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)	637	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
463	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	638	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
464	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	639	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
465	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	640	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
466	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)	641	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
467	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	642	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		643	#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
468		644
469	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	645	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
470	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	646	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
471	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	647	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
472	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	648	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
473	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)	649	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
474	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)	650	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
475	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	651	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
476	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	652	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
477	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	653	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
478	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)	654	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
479	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	655	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		656	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
480		657
481	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	658	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
482	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	659	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
483		660
484	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
485	#define ev_cb(ev) (ev)->cb /* rw */	661	#define ev_cb(ev) (ev)->cb /* rw */
		662
		663	#if EV_MINPRI == EV_MAXPRI
		664	# define ev_priority(ev) ((ev), EV_MINPRI)
		665	# define ev_set_priority(ev,pri) ((ev), (pri))
		666	#else
		667	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
486	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)	668	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		669	#endif
		670
		671	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
487		672
488	#ifndef ev_set_cb	673	#ifndef ev_set_cb
489	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	674	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
490	#endif	675	#endif
491		676
492	/* stopping (enabling, adding) a watcher does nothing if it is already running */	677	/* stopping (enabling, adding) a watcher does nothing if it is already running */
493	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	678	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
494	#if EV_PROTOTYPES	679	#if EV_PROTOTYPES
495		680
496	/* feeds an event into a watcher as if the event actually occured */	681	/* feeds an event into a watcher as if the event actually occured */
497	/* accepts any ev_watcher type */	682	/* accepts any ev_watcher type */
498	void ev_feed_event (EV_P_ void *w, int revents);	683	void ev_feed_event (EV_P_ void *w, int revents);
499	void ev_feed_fd_event (EV_P_ int fd, int revents);	684	void ev_feed_fd_event (EV_P_ int fd, int revents);
		685	#if EV_SIGNAL_ENABLE
500	void ev_feed_signal_event (EV_P_ int signum);	686	void ev_feed_signal_event (EV_P_ int signum);
		687	#endif
501	void ev_invoke (EV_P_ void *w, int revents);	688	void ev_invoke (EV_P_ void *w, int revents);
502	int ev_clear_pending (EV_P_ void *w);	689	int ev_clear_pending (EV_P_ void *w);
503		690
504	void ev_io_start (EV_P_ ev_io *w);	691	void ev_io_start (EV_P_ ev_io *w);
505	void ev_io_stop (EV_P_ ev_io *w);	692	void ev_io_stop (EV_P_ ev_io *w);
506		693
507	void ev_timer_start (EV_P_ ev_timer *w);	694	void ev_timer_start (EV_P_ ev_timer *w);
508	void ev_timer_stop (EV_P_ ev_timer *w);	695	void ev_timer_stop (EV_P_ ev_timer *w);
509	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	696	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
510	void ev_timer_again (EV_P_ ev_timer *w);	697	void ev_timer_again (EV_P_ ev_timer *w);
		698	/* return remaining time */
		699	ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
511		700
512	#if EV_PERIODIC_ENABLE	701	#if EV_PERIODIC_ENABLE
513	void ev_periodic_start (EV_P_ ev_periodic *w);	702	void ev_periodic_start (EV_P_ ev_periodic *w);
514	void ev_periodic_stop (EV_P_ ev_periodic *w);	703	void ev_periodic_stop (EV_P_ ev_periodic *w);
515	void ev_periodic_again (EV_P_ ev_periodic *w);	704	void ev_periodic_again (EV_P_ ev_periodic *w);
516	#endif	705	#endif
517		706
518	/* only supported in the default loop */	707	/* only supported in the default loop */
		708	#if EV_SIGNAL_ENABLE
519	void ev_signal_start (EV_P_ ev_signal *w);	709	void ev_signal_start (EV_P_ ev_signal *w);
520	void ev_signal_stop (EV_P_ ev_signal *w);	710	void ev_signal_stop (EV_P_ ev_signal *w);
		711	#endif
521		712
522	/* only supported in the default loop */	713	/* only supported in the default loop */
		714	# if EV_CHILD_ENABLE
523	void ev_child_start (EV_P_ ev_child *w);	715	void ev_child_start (EV_P_ ev_child *w);
524	void ev_child_stop (EV_P_ ev_child *w);	716	void ev_child_stop (EV_P_ ev_child *w);
		717	# endif
525		718
526	# if EV_STAT_ENABLE	719	# if EV_STAT_ENABLE
527	void ev_stat_start (EV_P_ ev_stat *w);	720	void ev_stat_start (EV_P_ ev_stat *w);
528	void ev_stat_stop (EV_P_ ev_stat *w);	721	void ev_stat_stop (EV_P_ ev_stat *w);
529	void ev_stat_stat (EV_P_ ev_stat *w);	722	void ev_stat_stat (EV_P_ ev_stat *w);
…		…
532	# if EV_IDLE_ENABLE	725	# if EV_IDLE_ENABLE
533	void ev_idle_start (EV_P_ ev_idle *w);	726	void ev_idle_start (EV_P_ ev_idle *w);
534	void ev_idle_stop (EV_P_ ev_idle *w);	727	void ev_idle_stop (EV_P_ ev_idle *w);
535	# endif	728	# endif
536		729
		730	#if EV_PREPARE_ENABLE
537	void ev_prepare_start (EV_P_ ev_prepare *w);	731	void ev_prepare_start (EV_P_ ev_prepare *w);
538	void ev_prepare_stop (EV_P_ ev_prepare *w);	732	void ev_prepare_stop (EV_P_ ev_prepare *w);
		733	#endif
539		734
		735	#if EV_CHECK_ENABLE
540	void ev_check_start (EV_P_ ev_check *w);	736	void ev_check_start (EV_P_ ev_check *w);
541	void ev_check_stop (EV_P_ ev_check *w);	737	void ev_check_stop (EV_P_ ev_check *w);
		738	#endif
542		739
543	# if EV_FORK_ENABLE	740	# if EV_FORK_ENABLE
544	void ev_fork_start (EV_P_ ev_fork *w);	741	void ev_fork_start (EV_P_ ev_fork *w);
545	void ev_fork_stop (EV_P_ ev_fork *w);	742	void ev_fork_stop (EV_P_ ev_fork *w);
546	# endif	743	# endif
…		…
550	void ev_embed_start (EV_P_ ev_embed *w);	747	void ev_embed_start (EV_P_ ev_embed *w);
551	void ev_embed_stop (EV_P_ ev_embed *w);	748	void ev_embed_stop (EV_P_ ev_embed *w);
552	void ev_embed_sweep (EV_P_ ev_embed *w);	749	void ev_embed_sweep (EV_P_ ev_embed *w);
553	# endif	750	# endif
554		751
		752	# if EV_ASYNC_ENABLE
		753	void ev_async_start (EV_P_ ev_async *w);
		754	void ev_async_stop (EV_P_ ev_async *w);
		755	void ev_async_send (EV_P_ ev_async *w);
		756	# endif
		757
		758	/* pre-4.0 compatibility */
		759	#ifndef EV_COMPAT3
		760	# define EV_COMPAT3 1
		761	#endif
		762
		763	#if EV_COMPAT3
		764	#define EVLOOP_NONBLOCK EVRUN_NOWAIT
		765	#define EVLOOP_ONESHOT EVRUN_ONCE
		766	#define EVUNLOOP_CANCEL EVBREAK_CANCEL
		767	#define EVUNLOOP_ONE EVBREAK_ONE
		768	#define EVUNLOOP_ALL EVBREAK_ALL
		769	#if EV_PROTOTYPES
		770	EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
		771	EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
		772	#if EV_FEATURE_API
		773	EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); }
		774	EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); }
		775	EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
		776	#endif
		777	#endif
		778	#else
		779	typedef struct ev_loop ev_loop;
		780	#endif
		781
555	#endif	782	#endif
556		783
557	#ifdef __cplusplus	784	#ifdef __cplusplus
558	}	785	}
559	#endif	786	#endif

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Comparing libev/ev.h (file contents): Revision 1.91 by root, Fri Jan 25 15:45:09 2008 UTC vs. Revision 1.141 by root, Thu Oct 21 12:32:47 2010 UTC

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Comparing libev/ev.h (file contents):
Revision 1.91 by root, Fri Jan 25 15:45:09 2008 UTC vs.
Revision 1.141 by root, Thu Oct 21 12:32:47 2010 UTC