[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 1.150 by root, Sun Oct 24 18:05:53 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	# define EV_CPP(x) x
		45	#else
		46	# define EV_CPP(x)
		47	#endif
		48
44	extern "C" {	49	EV_CPP(extern "C" {)
		50
		51	/*****************************************************************************/
		52
		53	/* pre-4.0 compatibility */
		54	#ifndef EV_COMPAT3
		55	# define EV_COMPAT3 1
45	#endif	56	#endif
		57
		58	#ifndef EV_FEATURES
		59	# define EV_FEATURES 0x7f
		60	#endif
		61
		62	#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
		63	#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
		64	#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
		65	#define EV_FEATURE_API ((EV_FEATURES) & 8)
		66	#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
		67	#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
		68	#define EV_FEATURE_OS ((EV_FEATURES) & 64)
		69
		70	/* these priorities are inclusive, higher priorities will be invoked earlier */
		71	#ifndef EV_MINPRI
		72	# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
		73	#endif
		74	#ifndef EV_MAXPRI
		75	# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
		76	#endif
		77
		78	#ifndef EV_MULTIPLICITY
		79	# define EV_MULTIPLICITY EV_FEATURE_CONFIG
		80	#endif
		81
		82	#ifndef EV_PERIODIC_ENABLE
		83	# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
		84	#endif
		85
		86	#ifndef EV_STAT_ENABLE
		87	# define EV_STAT_ENABLE EV_FEATURE_WATCHERS
		88	#endif
		89
		90	#ifndef EV_PREPARE_ENABLE
		91	# define EV_PREPARE_ENABLE EV_FEATURE_WATCHERS
		92	#endif
		93
		94	#ifndef EV_CHECK_ENABLE
		95	# define EV_CHECK_ENABLE EV_FEATURE_WATCHERS
		96	#endif
		97
		98	#ifndef EV_IDLE_ENABLE
		99	# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
		100	#endif
		101
		102	#ifndef EV_FORK_ENABLE
		103	# define EV_FORK_ENABLE 0 /* not implemented */
		104	#endif
		105
		106	#ifndef EV_CLEANUP_ENABLE
		107	# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
		108	#endif
		109
		110	#ifndef EV_SIGNAL_ENABLE
		111	# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
		112	#endif
		113
		114	#ifndef EV_CHILD_ENABLE
		115	# ifdef _WIN32
		116	# define EV_CHILD_ENABLE 0
		117	# else
		118	# define EV_CHILD_ENABLE EV_FEATURE_WATCHERS
		119	#endif
		120	#endif
		121
		122	#ifndef EV_ASYNC_ENABLE
		123	# define EV_ASYNC_ENABLE EV_FEATURE_WATCHERS
		124	#endif
		125
		126	#ifndef EV_EMBED_ENABLE
		127	# define EV_EMBED_ENABLE EV_FEATURE_WATCHERS
		128	#endif
		129
		130	#ifndef EV_WALK_ENABLE
		131	# define EV_WALK_ENABLE 0 /* not yet */
		132	#endif
		133
		134	/*****************************************************************************/
		135
		136	#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
		137	# undef EV_SIGNAL_ENABLE
		138	# define EV_SIGNAL_ENABLE 1
		139	#endif
		140
		141	/*****************************************************************************/
46		142
47	typedef double ev_tstamp;	143	typedef double ev_tstamp;
48		144
49	/* these priorities are inclusive, higher priorities will be called earlier */	145	#ifndef EV_ATOMIC_T
50	#ifndef EV_MINPRI	146	# include <signal.h>
51	# define EV_MINPRI -2	147	# define EV_ATOMIC_T sig_atomic_t volatile
52	#endif	148	#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		149
83	#if EV_STAT_ENABLE	150	#if EV_STAT_ENABLE
		151	# ifdef _WIN32
		152	# include <time.h>
		153	# include <sys/types.h>
		154	# endif
84	# include <sys/stat.h>	155	# include <sys/stat.h>
85	#endif	156	#endif
86		157
87	/* support multiple event loops? */	158	/* support multiple event loops? */
88	#if EV_MULTIPLICITY	159	#if EV_MULTIPLICITY
89	struct ev_loop;	160	struct ev_loop;
90	# define EV_P struct ev_loop *loop	161	# define EV_P struct ev_loop loop / a loop as sole parameter in a declaration */
91	# define EV_P_ EV_P,	162	# define EV_P_ EV_P, /* a loop as first of multiple parameters */
92	# define EV_A loop	163	# define EV_A loop /* a loop as sole argument to a function call */
93	# define EV_A_ EV_A,	164	# define EV_A_ EV_A, /* a loop as first of multiple arguments */
94	# define EV_DEFAULT ev_default_loop (0)	165	# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
95	# define EV_DEFAULT_ EV_DEFAULT,	166	# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
		167	# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
		168	# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
96	#else	169	#else
97	# define EV_P void	170	# define EV_P void
98	# define EV_P_	171	# define EV_P_
99	# define EV_A	172	# define EV_A
100	# define EV_A_	173	# define EV_A_
101	# define EV_DEFAULT	174	# define EV_DEFAULT
102	# define EV_DEFAULT_	175	# define EV_DEFAULT_
103		176	# define EV_DEFAULT_UC
		177	# define EV_DEFAULT_UC_
104	# undef EV_EMBED_ENABLE	178	# undef EV_EMBED_ENABLE
105	#endif	179	#endif
106		180
		181	/* EV_INLINE is used for functions in header files */
		182	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		183	# define EV_INLINE static inline
		184	#else
		185	# define EV_INLINE static
		186	#endif
		187
		188	/* EV_PROTOTYPES can be sued to switch of prototype declarations */
		189	#ifndef EV_PROTOTYPES
		190	# define EV_PROTOTYPES 1
		191	#endif
		192
		193	/*****************************************************************************/
		194
		195	#define EV_VERSION_MAJOR 4
		196	#define EV_VERSION_MINOR 0
		197
107	/* eventmask, revents, events... */	198	/* eventmask, revents, events... */
		199	enum {
108	#define EV_UNDEF -1L /* guaranteed to be invalid */	200	EV_UNDEF = -1, /* guaranteed to be invalid */
109	#define EV_NONE 0x00L /* no events */	201	EV_NONE = 0x00, /* no events */
110	#define EV_READ 0x01L /* ev_io detected read will not block */	202	EV_READ = 0x01, /* ev_io detected read will not block */
111	#define EV_WRITE 0x02L /* ev_io detected write will not block */	203	EV_WRITE = 0x02, /* ev_io detected write will not block */
112	#define EV_IOFDSET 0x80L /* internal use only */	204	EV__IOFDSET = 0x80, /* internal use only */
		205	EV_IO = EV_READ, /* alias for type-detection */
113	#define EV_TIMEOUT 0x00000100L /* timer timed out */	206	EV_TIMER = 0x00000100, /* timer timed out */
		207	#if EV_COMPAT3
		208	EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
		209	#endif
114	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	210	EV_PERIODIC = 0x00000200, /* periodic timer timed out */
115	#define EV_SIGNAL 0x00000400L /* signal was received */	211	EV_SIGNAL = 0x00000400, /* signal was received */
116	#define EV_CHILD 0x00000800L /* child/pid had status change */	212	EV_CHILD = 0x00000800, /* child/pid had status change */
117	#define EV_STAT 0x00001000L /* stat data changed */	213	EV_STAT = 0x00001000, /* stat data changed */
118	#define EV_IDLE 0x00002000L /* event loop is idling */	214	EV_IDLE = 0x00002000, /* event loop is idling */
119	#define EV_PREPARE 0x00004000L /* event loop about to poll */	215	EV_PREPARE = 0x00004000, /* event loop about to poll */
120	#define EV_CHECK 0x00008000L /* event loop finished poll */	216	EV_CHECK = 0x00008000, /* event loop finished poll */
121	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */	217	EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
122	#define EV_FORK 0x00020000L /* event loop resumed in child */	218	EV_FORK = 0x00020000, /* event loop resumed in child */
		219	EV_CLEANUP = 0x00040000, /* event loop resumed in child */
		220	EV_ASYNC = 0x00080000, /* async intra-loop signal */
		221	EV_CUSTOM = 0x01000000, /* for use by user code */
123	#define EV_ERROR 0x80000000L /* sent when an error occurs */	222	EV_ERROR = 0x80000000 /* sent when an error occurs */
		223	};
124		224
125	/* can be used to add custom fields to all watchers, while losing binary compatibility */	225	/* can be used to add custom fields to all watchers, while losing binary compatibility */
126	#ifndef EV_COMMON	226	#ifndef EV_COMMON
127	# define EV_COMMON void *data;	227	# define EV_COMMON void *data;
128	#endif	228	#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		229
136	#ifndef EV_CB_DECLARE	230	#ifndef EV_CB_DECLARE
137	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	231	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
138	#endif	232	#endif
139	#ifndef EV_CB_INVOKE	233	#ifndef EV_CB_INVOKE
140	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	234	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
141	#endif	235	#endif
142		236
		237	/* not official, do not use */
		238	#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
		239
143	/*	240	/*
144	* struct member types:	241	* struct member types:
145	* private: you can look at them, but not change them, and they might not mean anything to you.	242	* private: you may look at them, but not change them,
		243	* and they might not mean anything to you.
146	* ro: can be read anytime, but only changed when the watcher isn't active	244	* 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	245	* rw: can be read and modified anytime, even when the watcher is active.
		246	*
		247	* some internal details that might be helpful for debugging:
		248	*
		249	* active is either 0, which means the watcher is not active,
		250	* or the array index of the watcher (periodics, timers)
		251	* or the array index + 1 (most other watchers)
		252	* or simply 1 for watchers that aren't in some array.
		253	* pending is either 0, in which case the watcher isn't,
		254	* or the array index + 1 in the pendings array.
148	*/	255	*/
		256
		257	#if EV_MINPRI == EV_MAXPRI
		258	# define EV_DECL_PRIORITY
		259	#elif !defined (EV_DECL_PRIORITY)
		260	# define EV_DECL_PRIORITY int priority;
		261	#endif
149		262
150	/* shared by all watchers */	263	/* shared by all watchers */
151	#define EV_WATCHER(type) \	264	#define EV_WATCHER(type) \
152	int active; /* private */ \	265	int active; /* private */ \
153	int pending; /* private */ \	266	int pending; /* private */ \
154	int priority; /* private */ \	267	EV_DECL_PRIORITY /* private */ \
155	EV_COMMON /* rw */ \	268	EV_COMMON /* rw */ \
156	EV_CB_DECLARE (type) /* private */	269	EV_CB_DECLARE (type) /* private */
157		270
158	#define EV_WATCHER_LIST(type) \	271	#define EV_WATCHER_LIST(type) \
159	EV_WATCHER (type) \	272	EV_WATCHER (type) \
…		…
281	EV_WATCHER (ev_check)	394	EV_WATCHER (ev_check)
282	} ev_check;	395	} ev_check;
283		396
284	#if EV_FORK_ENABLE	397	#if EV_FORK_ENABLE
285	/* the callback gets invoked before check in the child process when a fork was detected */	398	/* the callback gets invoked before check in the child process when a fork was detected */
		399	/* revent EV_FORK */
286	typedef struct ev_fork	400	typedef struct ev_fork
287	{	401	{
288	EV_WATCHER (ev_fork)	402	EV_WATCHER (ev_fork)
289	} ev_fork;	403	} ev_fork;
		404	#endif
		405
		406	#if EV_CLEANUP_ENABLE
		407	/* is invoked just before the loop gets destroyed */
		408	/* revent EV_CLEANUP */
		409	typedef struct ev_cleanup
		410	{
		411	EV_WATCHER (ev_cleanup)
		412	} ev_cleanup;
290	#endif	413	#endif
291		414
292	#if EV_EMBED_ENABLE	415	#if EV_EMBED_ENABLE
293	/* used to embed an event loop inside another */	416	/* used to embed an event loop inside another */
294	/* the callback gets invoked when the event loop has handled events, and can be 0 */	417	/* the callback gets invoked when the event loop has handled events, and can be 0 */
…		…
301	ev_prepare prepare; /* private */	424	ev_prepare prepare; /* private */
302	ev_check check; /* unused */	425	ev_check check; /* unused */
303	ev_timer timer; /* unused */	426	ev_timer timer; /* unused */
304	ev_periodic periodic; /* unused */	427	ev_periodic periodic; /* unused */
305	ev_idle idle; /* unused */	428	ev_idle idle; /* unused */
306	ev_fork fork; /* unused */	429	ev_fork fork; /* private */
		430	ev_cleanup cleanup; /* unused */
307	} ev_embed;	431	} ev_embed;
		432	#endif
		433
		434	#if EV_ASYNC_ENABLE
		435	/* invoked when somebody calls ev_async_send on the watcher */
		436	/* revent EV_ASYNC */
		437	typedef struct ev_async
		438	{
		439	EV_WATCHER (ev_async)
		440
		441	EV_ATOMIC_T sent; /* private */
		442	} ev_async;
		443
		444	# define ev_async_pending(w) (+(w)->sent)
308	#endif	445	#endif
309		446
310	/* the presence of this union forces similar struct layout */	447	/* the presence of this union forces similar struct layout */
311	union ev_any_watcher	448	union ev_any_watcher
312	{	449	{
…		…
327	struct ev_prepare prepare;	464	struct ev_prepare prepare;
328	struct ev_check check;	465	struct ev_check check;
329	#if EV_FORK_ENABLE	466	#if EV_FORK_ENABLE
330	struct ev_fork fork;	467	struct ev_fork fork;
331	#endif	468	#endif
		469	#if EV_CLEANUP_ENABLE
		470	struct ev_cleanup cleanup;
		471	#endif
332	#if EV_EMBED_ENABLE	472	#if EV_EMBED_ENABLE
333	struct ev_embed embed;	473	struct ev_embed embed;
334	#endif	474	#endif
		475	#if EV_ASYNC_ENABLE
		476	struct ev_async async;
		477	#endif
335	};	478	};
336		479
337	/* bits for ev_default_loop and ev_loop_new */	480	/* flag bits for ev_default_loop and ev_loop_new */
		481	enum {
338	/* the default */	482	/* the default */
339	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	483	EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
340	/* flag bits */	484	/* flag bits */
341	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	485	EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
342	#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */	486	EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
		487	/* debugging/feature disable */
		488	EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
		489	#if EV_COMPAT3
		490	EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
		491	#endif
		492	EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */
		493	};
		494
343	/* method bits to be ored together */	495	/* method bits to be ored together */
		496	enum {
344	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	497	EVBACKEND_SELECT = 0x00000001U, /* about anywhere */
345	#define EVBACKEND_POLL 0x00000002UL /* !win */	498	EVBACKEND_POLL = 0x00000002U, /* !win */
346	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	499	EVBACKEND_EPOLL = 0x00000004U, /* linux */
347	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	500	EVBACKEND_KQUEUE = 0x00000008U, /* bsd */
348	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	501	EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 / / NYI */
349	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	502	EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
		503	EVBACKEND_ALL = 0x0000003FU
		504	};
350		505
351	#if EV_PROTOTYPES	506	#if EV_PROTOTYPES
352	int ev_version_major (void);	507	int ev_version_major (void);
353	int ev_version_minor (void);	508	int ev_version_minor (void);
354		509
…		…
371	* retryable syscall error	526	* retryable syscall error
372	* (such as failed select, poll, epoll_wait)	527	* (such as failed select, poll, epoll_wait)
373	*/	528	*/
374	void ev_set_syserr_cb (void (cb)(const char msg));	529	void ev_set_syserr_cb (void (cb)(const char msg));
375		530
376	# if EV_MULTIPLICITY	531	#if EV_MULTIPLICITY
		532
377	/* the default loop is the only one that handles signals and child watchers */	533	/* the default loop is the only one that handles signals and child watchers */
378	/* you can call this as often as you like */	534	/* you can call this as often as you like */
379	static struct ev_loop *	535	struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0));
380	ev_default_loop (unsigned int flags)	536
		537	EV_INLINE struct ev_loop *
		538	ev_default_loop_uc_ (void)
381	{	539	{
382	extern struct ev_loop *ev_default_loop_ptr;	540	extern struct ev_loop *ev_default_loop_ptr;
383	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
384
385	if (!ev_default_loop_ptr)
386	ev_default_loop_init (flags);
387		541
388	return ev_default_loop_ptr;	542	return ev_default_loop_ptr;
389	}	543	}
390		544
		545	EV_INLINE int
		546	ev_is_default_loop (EV_P)
		547	{
		548	return EV_A == EV_DEFAULT_UC;
		549	}
		550
391	/* create and destroy alternative loops that don't handle signals */	551	/* create and destroy alternative loops that don't handle signals */
392	struct ev_loop *ev_loop_new (unsigned int flags);	552	struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0));
		553	/* destroy event loops, also works for the default loop */
393	void ev_loop_destroy (EV_P);	554	void ev_loop_destroy (EV_P);
394	void ev_loop_fork (EV_P);
395		555
396	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	556	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
397		557
398	# else	558	#else
399		559
400	int ev_default_loop (unsigned int flags); /* returns true when successful */	560	int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */
401		561
402	static ev_tstamp	562	EV_INLINE ev_tstamp
403	ev_now (void)	563	ev_now (void)
404	{	564	{
405	extern ev_tstamp ev_rt_now;	565	extern ev_tstamp ev_rt_now;
406		566
407	return ev_rt_now;	567	return ev_rt_now;
408	}	568	}
409	# endif
410		569
411	void ev_default_destroy (void); /* destroy the default loop */	570	/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
		571	EV_INLINE int
		572	ev_is_default_loop (void)
		573	{
		574	return 1;
		575	}
		576
		577	#endif /* multiplicity */
		578
412	/* this needs to be called after fork, to duplicate the default loop */	579	/* this needs to be called after fork, to duplicate the loop */
413	/* if you create alternative loops you have to call ev_loop_fork on them */	580	/* when you want to re-use it in the child */
414	/* you can call it in either the parent or the child */	581	/* you can call it in either the parent or the child */
415	/* you can actually call it at any time, anywhere :) */	582	/* you can actually call it at any time, anywhere :) */
416	void ev_default_fork (void);	583	void ev_loop_fork (EV_P);
417		584
418	unsigned int ev_backend (EV_P); /* backend in use by loop */	585	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		586
422	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	587	void ev_now_update (EV_P); /* update event loop time */
423	#define EVLOOP_ONESHOT 2 /* block once only */	588
424	#define EVUNLOOP_CANCEL 0 /* undo unloop */	589	#if EV_WALK_ENABLE
425	#define EVUNLOOP_ONE 1 /* unloop once */	590	/* walk (almost) all watchers in the loop of a given type, invoking the */
		591	/* callback on every such watcher. The callback might stop the watcher, */
		592	/* but do nothing else with the loop */
		593	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
		594	#endif
		595
		596	#endif /* prototypes */
		597
		598	/* ev_run flags values */
		599	enum {
		600	EVRUN_NOWAIT = 1, /* do not block/wait */
		601	EVRUN_ONCE = 2 /* block once only */
		602	};
		603
		604	/* ev_break how values */
		605	enum {
		606	EVBREAK_CANCEL = 0, /* undo unloop */
		607	EVBREAK_ONE = 1, /* unloop once */
426	#define EVUNLOOP_ALL 2 /* unloop all loops */	608	EVBREAK_ALL = 2 /* unloop all loops */
		609	};
427		610
428	#if EV_PROTOTYPES	611	#if EV_PROTOTYPES
429	void ev_loop (EV_P_ int flags);	612	void ev_run (EV_P_ int flags EV_CPP (= 0));
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 */	613	void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */
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		614
435	/*	615	/*
436	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	616	* 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	617	* 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.	618	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
439	*/	619	*/
440	void ev_ref (EV_P);	620	void ev_ref (EV_P);
441	void ev_unref (EV_P);	621	void ev_unref (EV_P);
442		622
		623	/*
443	/* convinience function, wait for a single event, without registering an event watcher */	624	* convenience function, wait for a single event, without registering an event watcher
444	/* if timeout is < 0, do wait indefinitely */	625	* if timeout is < 0, do wait indefinitely
		626	*/
445	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	627	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
		628
		629	# if EV_FEATURE_API
		630	unsigned int ev_iteration (EV_P); /* number of loop iterations */
		631	unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
		632	void ev_verify (EV_P); /* abort if loop data corrupted */
		633
		634	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		635	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		636
		637	/* advanced stuff for threading etc. support, see docs */
		638	void ev_set_userdata (EV_P_ void *data);
		639	void *ev_userdata (EV_P);
		640	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
		641	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));
		642
		643	unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
		644	void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		645
		646	/*
		647	* stop/start the timer handling.
		648	*/
		649	void ev_suspend (EV_P);
		650	void ev_resume (EV_P);
		651	#endif
		652
446	#endif	653	#endif
447		654
448	/* these may evaluate ev multiple times, and the other arguments at most once */	655	/* 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 */	656	/* 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 { \	657	#define ev_init(ev,cb_) do { \
451	((ev_watcher )(void )(ev))->active = \	658	((ev_watcher )(void )(ev))->active = \
452	((ev_watcher )(void )(ev))->pending = \	659	((ev_watcher )(void )(ev))->pending = 0; \
453	((ev_watcher )(void )(ev))->priority = 0; \	660	ev_set_priority ((ev), 0); \
454	ev_set_cb ((ev), cb_); \	661	ev_set_cb ((ev), cb_); \
455	} while (0)	662	} while (0)
456		663
457	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV_IOFDSET; } while (0)	664	#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)	665	#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)	666	#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)	667	#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)	668	#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)	669	#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 */	670	#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 */	671	#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 */	672	#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)	673	#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 */	674	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		675	#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
		676	#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
468		677
469	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	678	#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)	679	#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)	680	#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)	681	#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)	682	#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)	683	#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)	684	#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)	685	#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)	686	#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)	687	#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)	688	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		689	#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
		690	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
480		691
481	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	692	#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 */	693	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
483		694
484	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
485	#define ev_cb(ev) (ev)->cb /* rw */	695	#define ev_cb(ev) (ev)->cb /* rw */
		696
		697	#if EV_MINPRI == EV_MAXPRI
		698	# define ev_priority(ev) ((ev), EV_MINPRI)
		699	# define ev_set_priority(ev,pri) ((ev), (pri))
		700	#else
		701	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
486	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)	702	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		703	#endif
		704
		705	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
487		706
488	#ifndef ev_set_cb	707	#ifndef ev_set_cb
489	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	708	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
490	#endif	709	#endif
491		710
492	/* stopping (enabling, adding) a watcher does nothing if it is already running */	711	/* stopping (enabling, adding) a watcher does nothing if it is already running */
493	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	712	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
494	#if EV_PROTOTYPES	713	#if EV_PROTOTYPES
495		714
496	/* feeds an event into a watcher as if the event actually occured */	715	/* feeds an event into a watcher as if the event actually occured */
497	/* accepts any ev_watcher type */	716	/* accepts any ev_watcher type */
498	void ev_feed_event (EV_P_ void *w, int revents);	717	void ev_feed_event (EV_P_ void *w, int revents);
499	void ev_feed_fd_event (EV_P_ int fd, int revents);	718	void ev_feed_fd_event (EV_P_ int fd, int revents);
		719	#if EV_SIGNAL_ENABLE
500	void ev_feed_signal_event (EV_P_ int signum);	720	void ev_feed_signal_event (EV_P_ int signum);
		721	#endif
501	void ev_invoke (EV_P_ void *w, int revents);	722	void ev_invoke (EV_P_ void *w, int revents);
502	int ev_clear_pending (EV_P_ void *w);	723	int ev_clear_pending (EV_P_ void *w);
503		724
504	void ev_io_start (EV_P_ ev_io *w);	725	void ev_io_start (EV_P_ ev_io *w);
505	void ev_io_stop (EV_P_ ev_io *w);	726	void ev_io_stop (EV_P_ ev_io *w);
506		727
507	void ev_timer_start (EV_P_ ev_timer *w);	728	void ev_timer_start (EV_P_ ev_timer *w);
508	void ev_timer_stop (EV_P_ ev_timer *w);	729	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 */	730	/* 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);	731	void ev_timer_again (EV_P_ ev_timer *w);
		732	/* return remaining time */
		733	ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
511		734
512	#if EV_PERIODIC_ENABLE	735	#if EV_PERIODIC_ENABLE
513	void ev_periodic_start (EV_P_ ev_periodic *w);	736	void ev_periodic_start (EV_P_ ev_periodic *w);
514	void ev_periodic_stop (EV_P_ ev_periodic *w);	737	void ev_periodic_stop (EV_P_ ev_periodic *w);
515	void ev_periodic_again (EV_P_ ev_periodic *w);	738	void ev_periodic_again (EV_P_ ev_periodic *w);
516	#endif	739	#endif
517		740
518	/* only supported in the default loop */	741	/* only supported in the default loop */
		742	#if EV_SIGNAL_ENABLE
519	void ev_signal_start (EV_P_ ev_signal *w);	743	void ev_signal_start (EV_P_ ev_signal *w);
520	void ev_signal_stop (EV_P_ ev_signal *w);	744	void ev_signal_stop (EV_P_ ev_signal *w);
		745	#endif
521		746
522	/* only supported in the default loop */	747	/* only supported in the default loop */
		748	# if EV_CHILD_ENABLE
523	void ev_child_start (EV_P_ ev_child *w);	749	void ev_child_start (EV_P_ ev_child *w);
524	void ev_child_stop (EV_P_ ev_child *w);	750	void ev_child_stop (EV_P_ ev_child *w);
		751	# endif
525		752
526	# if EV_STAT_ENABLE	753	# if EV_STAT_ENABLE
527	void ev_stat_start (EV_P_ ev_stat *w);	754	void ev_stat_start (EV_P_ ev_stat *w);
528	void ev_stat_stop (EV_P_ ev_stat *w);	755	void ev_stat_stop (EV_P_ ev_stat *w);
529	void ev_stat_stat (EV_P_ ev_stat *w);	756	void ev_stat_stat (EV_P_ ev_stat *w);
…		…
532	# if EV_IDLE_ENABLE	759	# if EV_IDLE_ENABLE
533	void ev_idle_start (EV_P_ ev_idle *w);	760	void ev_idle_start (EV_P_ ev_idle *w);
534	void ev_idle_stop (EV_P_ ev_idle *w);	761	void ev_idle_stop (EV_P_ ev_idle *w);
535	# endif	762	# endif
536		763
		764	#if EV_PREPARE_ENABLE
537	void ev_prepare_start (EV_P_ ev_prepare *w);	765	void ev_prepare_start (EV_P_ ev_prepare *w);
538	void ev_prepare_stop (EV_P_ ev_prepare *w);	766	void ev_prepare_stop (EV_P_ ev_prepare *w);
		767	#endif
539		768
		769	#if EV_CHECK_ENABLE
540	void ev_check_start (EV_P_ ev_check *w);	770	void ev_check_start (EV_P_ ev_check *w);
541	void ev_check_stop (EV_P_ ev_check *w);	771	void ev_check_stop (EV_P_ ev_check *w);
		772	#endif
542		773
543	# if EV_FORK_ENABLE	774	# if EV_FORK_ENABLE
544	void ev_fork_start (EV_P_ ev_fork *w);	775	void ev_fork_start (EV_P_ ev_fork *w);
545	void ev_fork_stop (EV_P_ ev_fork *w);	776	void ev_fork_stop (EV_P_ ev_fork *w);
		777	# endif
		778
		779	# if EV_CLEANUP_ENABLE
		780	void ev_cleanup_start (EV_P_ ev_cleanup *w);
		781	void ev_cleanup_stop (EV_P_ ev_cleanup *w);
546	# endif	782	# endif
547		783
548	# if EV_EMBED_ENABLE	784	# if EV_EMBED_ENABLE
549	/* only supported when loop to be embedded is in fact embeddable */	785	/* only supported when loop to be embedded is in fact embeddable */
550	void ev_embed_start (EV_P_ ev_embed *w);	786	void ev_embed_start (EV_P_ ev_embed *w);
551	void ev_embed_stop (EV_P_ ev_embed *w);	787	void ev_embed_stop (EV_P_ ev_embed *w);
552	void ev_embed_sweep (EV_P_ ev_embed *w);	788	void ev_embed_sweep (EV_P_ ev_embed *w);
553	# endif	789	# endif
554		790
		791	# if EV_ASYNC_ENABLE
		792	void ev_async_start (EV_P_ ev_async *w);
		793	void ev_async_stop (EV_P_ ev_async *w);
		794	void ev_async_send (EV_P_ ev_async *w);
555	#endif	795	# endif
556		796
557	#ifdef __cplusplus	797	#if EV_COMPAT3
558	}	798	#define EVLOOP_NONBLOCK EVRUN_NOWAIT
		799	#define EVLOOP_ONESHOT EVRUN_ONCE
		800	#define EVUNLOOP_CANCEL EVBREAK_CANCEL
		801	#define EVUNLOOP_ONE EVBREAK_ONE
		802	#define EVUNLOOP_ALL EVBREAK_ALL
		803	#if EV_PROTOTYPES
		804	EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
		805	EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
		806	EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
		807	EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
		808	#if EV_FEATURE_API
		809	EV_INLINE void ev_loop_count (EV_P) { ev_iteration (EV_A); }
		810	EV_INLINE void ev_loop_depth (EV_P) { ev_depth (EV_A); }
		811	EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
		812	#endif
559	#endif	813	#endif
560		814	#else
		815	typedef struct ev_loop ev_loop;
561	#endif	816	#endif
562		817
		818	#endif
		819
		820	EV_CPP(})
		821
		822	#endif
		823

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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 1.150 by root, Sun Oct 24 18:05:53 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 1.150 by root, Sun Oct 24 18:05:53 2010 UTC