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

Comparing libev/ev.h (file contents):
Revision 1.112 by root, Sat Mar 28 22:17:17 2009 UTC vs.
Revision 1.155 by root, Thu Nov 4 18:40:09 2010 UTC

…		…
1	/*	1	/*
2	* libev native API header	2	* libev native API header
3	*	3	*
4	* Copyright (c) 2007,2008,2009 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 EV_FEATURE_WATCHERS
		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
49	/* these priorities are inclusive, higher priorities will be called earlier */
50	#ifndef EV_MINPRI
51	# define EV_MINPRI -2
52	#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	#ifndef EV_ASYNC_ENABLE
82	# define EV_ASYNC_ENABLE 1
83	#endif
84		144
85	#ifndef EV_ATOMIC_T	145	#ifndef EV_ATOMIC_T
86	# include <signal.h>	146	# include <signal.h>
87	# define EV_ATOMIC_T sig_atomic_t volatile	147	# define EV_ATOMIC_T sig_atomic_t volatile
88	#endif	148	#endif
89
90	/*****************************************************************************/
91		149
92	#if EV_STAT_ENABLE	150	#if EV_STAT_ENABLE
93	# ifdef _WIN32	151	# ifdef _WIN32
94	# include <time.h>	152	# include <time.h>
95	# include <sys/types.h>	153	# include <sys/types.h>
…		…
98	#endif	156	#endif
99		157
100	/* support multiple event loops? */	158	/* support multiple event loops? */
101	#if EV_MULTIPLICITY	159	#if EV_MULTIPLICITY
102	struct ev_loop;	160	struct ev_loop;
103	# define EV_P struct ev_loop *loop	161	# define EV_P struct ev_loop loop / a loop as sole parameter in a declaration */
104	# define EV_P_ EV_P,	162	# define EV_P_ EV_P, /* a loop as first of multiple parameters */
105	# define EV_A loop	163	# define EV_A loop /* a loop as sole argument to a function call */
106	# define EV_A_ EV_A,	164	# define EV_A_ EV_A, /* a loop as first of multiple arguments */
107	# define EV_DEFAULT_UC ev_default_loop_uc ()	165	# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
108	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,	166	# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
109	# define EV_DEFAULT ev_default_loop (0)	167	# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
110	# define EV_DEFAULT_ EV_DEFAULT,	168	# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
111	#else	169	#else
112	# define EV_P void	170	# define EV_P void
113	# define EV_P_	171	# define EV_P_
114	# define EV_A	172	# define EV_A
115	# define EV_A_	173	# define EV_A_
…		…
118	# define EV_DEFAULT_UC	176	# define EV_DEFAULT_UC
119	# define EV_DEFAULT_UC_	177	# define EV_DEFAULT_UC_
120	# undef EV_EMBED_ENABLE	178	# undef EV_EMBED_ENABLE
121	#endif	179	#endif
122		180
		181	/* EV_INLINE is used for functions in header files */
123	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3	182	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
124	# define EV_INLINE static inline	183	# define EV_INLINE static inline
125	#else	184	#else
126	# define EV_INLINE static	185	# define EV_INLINE static
127	#endif	186	#endif
128		187
		188	/* EV_PROTOTYPES can be sued to switch of prototype declarations */
		189	#ifndef EV_PROTOTYPES
		190	# define EV_PROTOTYPES 1
		191	#endif
		192
129	/*****************************************************************************/	193	/*****************************************************************************/
130		194
		195	#define EV_VERSION_MAJOR 4
		196	#define EV_VERSION_MINOR 0
		197
131	/* eventmask, revents, events... */	198	/* eventmask, revents, events... */
132	#define EV_UNDEF -1 /* guaranteed to be invalid */	199	enum {
		200	EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */
133	#define EV_NONE 0x00 /* no events */	201	EV_NONE = 0x00, /* no events */
134	#define EV_READ 0x01 /* ev_io detected read will not block */	202	EV_READ = 0x01, /* ev_io detected read will not block */
135	#define EV_WRITE 0x02 /* ev_io detected write will not block */	203	EV_WRITE = 0x02, /* ev_io detected write will not block */
136	#define EV__IOFDSET 0x80 /* internal use only */	204	EV__IOFDSET = 0x80, /* internal use only */
137	#define EV_IO EV_READ /* alias for type-detection */	205	EV_IO = EV_READ, /* alias for type-detection */
138	#define EV_TIMEOUT 0x00000100 /* timer timed out */	206	EV_TIMER = 0x00000100, /* timer timed out */
139	#define EV_TIMER EV_TIMEOUT /* alias for type-detection */	207	#if EV_COMPAT3
		208	EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
		209	#endif
140	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */	210	EV_PERIODIC = 0x00000200, /* periodic timer timed out */
141	#define EV_SIGNAL 0x00000400 /* signal was received */	211	EV_SIGNAL = 0x00000400, /* signal was received */
142	#define EV_CHILD 0x00000800 /* child/pid had status change */	212	EV_CHILD = 0x00000800, /* child/pid had status change */
143	#define EV_STAT 0x00001000 /* stat data changed */	213	EV_STAT = 0x00001000, /* stat data changed */
144	#define EV_IDLE 0x00002000 /* event loop is idling */	214	EV_IDLE = 0x00002000, /* event loop is idling */
145	#define EV_PREPARE 0x00004000 /* event loop about to poll */	215	EV_PREPARE = 0x00004000, /* event loop about to poll */
146	#define EV_CHECK 0x00008000 /* event loop finished poll */	216	EV_CHECK = 0x00008000, /* event loop finished poll */
147	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */	217	EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
148	#define EV_FORK 0x00020000 /* event loop resumed in child */	218	EV_FORK = 0x00020000, /* event loop resumed in child */
		219	EV_CLEANUP = 0x00040000, /* event loop resumed in child */
149	#define EV_ASYNC 0x00040000 /* async intra-loop signal */	220	EV_ASYNC = 0x00080000, /* async intra-loop signal */
		221	EV_CUSTOM = 0x01000000, /* for use by user code */
150	#define EV_ERROR 0x80000000 /* sent when an error occurs */	222	EV_ERROR = 0x80000000 /* sent when an error occurs */
		223	};
151		224
152	/* 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 */
153	#ifndef EV_COMMON	226	#ifndef EV_COMMON
154	# define EV_COMMON void *data;	227	# define EV_COMMON void *data;
155	#endif	228	#endif
156	#ifndef EV_PROTOTYPES
157	# define EV_PROTOTYPES 1
158	#endif
159
160	#define EV_VERSION_MAJOR 3
161	#define EV_VERSION_MINOR 0
162		229
163	#ifndef EV_CB_DECLARE	230	#ifndef EV_CB_DECLARE
164	# 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);
165	#endif	232	#endif
166	#ifndef EV_CB_INVOKE	233	#ifndef EV_CB_INVOKE
167	# 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))
168	#endif	235	#endif
		236
		237	/* not official, do not use */
		238	#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
169		239
170	/*	240	/*
171	* struct member types:	241	* struct member types:
172	* private: you may look at them, but not change them,	242	* private: you may look at them, but not change them,
173	* and they might not mean anything to you.	243	* and they might not mean anything to you.
…		…
182	* or simply 1 for watchers that aren't in some array.	252	* or simply 1 for watchers that aren't in some array.
183	* pending is either 0, in which case the watcher isn't,	253	* pending is either 0, in which case the watcher isn't,
184	* or the array index + 1 in the pendings array.	254	* or the array index + 1 in the pendings array.
185	*/	255	*/
186		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
		262
187	/* shared by all watchers */	263	/* shared by all watchers */
188	#define EV_WATCHER(type) \	264	#define EV_WATCHER(type) \
189	int active; /* private */ \	265	int active; /* private */ \
190	int pending; /* private */ \	266	int pending; /* private */ \
191	int priority; /* private */ \	267	EV_DECL_PRIORITY /* private */ \
192	EV_COMMON /* rw */ \	268	EV_COMMON /* rw */ \
193	EV_CB_DECLARE (type) /* private */	269	EV_CB_DECLARE (type) /* private */
194		270
195	#define EV_WATCHER_LIST(type) \	271	#define EV_WATCHER_LIST(type) \
196	EV_WATCHER (type) \	272	EV_WATCHER (type) \
…		…
318	EV_WATCHER (ev_check)	394	EV_WATCHER (ev_check)
319	} ev_check;	395	} ev_check;
320		396
321	#if EV_FORK_ENABLE	397	#if EV_FORK_ENABLE
322	/* 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 */
323	typedef struct ev_fork	400	typedef struct ev_fork
324	{	401	{
325	EV_WATCHER (ev_fork)	402	EV_WATCHER (ev_fork)
326	} 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;
327	#endif	413	#endif
328		414
329	#if EV_EMBED_ENABLE	415	#if EV_EMBED_ENABLE
330	/* used to embed an event loop inside another */	416	/* used to embed an event loop inside another */
331	/* 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 */
…		…
339	ev_check check; /* unused */	425	ev_check check; /* unused */
340	ev_timer timer; /* unused */	426	ev_timer timer; /* unused */
341	ev_periodic periodic; /* unused */	427	ev_periodic periodic; /* unused */
342	ev_idle idle; /* unused */	428	ev_idle idle; /* unused */
343	ev_fork fork; /* private */	429	ev_fork fork; /* private */
		430	#if EV_CLEANUP_ENABLE
		431	ev_cleanup cleanup; /* unused */
		432	#endif
344	} ev_embed;	433	} ev_embed;
345	#endif	434	#endif
346		435
347	#if EV_ASYNC_ENABLE	436	#if EV_ASYNC_ENABLE
348	/* invoked when somebody calls ev_async_send on the watcher */	437	/* invoked when somebody calls ev_async_send on the watcher */
…		…
352	EV_WATCHER (ev_async)	441	EV_WATCHER (ev_async)
353		442
354	EV_ATOMIC_T sent; /* private */	443	EV_ATOMIC_T sent; /* private */
355	} ev_async;	444	} ev_async;
356		445
357	# define ev_async_pending(w) ((w)->sent + 0)	446	# define ev_async_pending(w) (+(w)->sent)
358	#endif	447	#endif
359		448
360	/* the presence of this union forces similar struct layout */	449	/* the presence of this union forces similar struct layout */
361	union ev_any_watcher	450	union ev_any_watcher
362	{	451	{
…		…
377	struct ev_prepare prepare;	466	struct ev_prepare prepare;
378	struct ev_check check;	467	struct ev_check check;
379	#if EV_FORK_ENABLE	468	#if EV_FORK_ENABLE
380	struct ev_fork fork;	469	struct ev_fork fork;
381	#endif	470	#endif
		471	#if EV_CLEANUP_ENABLE
		472	struct ev_cleanup cleanup;
		473	#endif
382	#if EV_EMBED_ENABLE	474	#if EV_EMBED_ENABLE
383	struct ev_embed embed;	475	struct ev_embed embed;
384	#endif	476	#endif
385	#if EV_ASYNC_ENABLE	477	#if EV_ASYNC_ENABLE
386	struct ev_async async;	478	struct ev_async async;
387	#endif	479	#endif
388	};	480	};
389		481
390	/* bits for ev_default_loop and ev_loop_new */	482	/* flag bits for ev_default_loop and ev_loop_new */
		483	enum {
391	/* the default */	484	/* the default */
392	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */	485	EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
393	/* flag bits */	486	/* flag bits */
394	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */	487	EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
395	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */	488	EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
		489	/* debugging/feature disable */
		490	EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
		491	#if EV_COMPAT3
		492	EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
		493	#endif
		494	EVFLAG_SIGNALFD = 0x00200000U /* attempt to use signalfd */
		495	};
		496
396	/* method bits to be ored together */	497	/* method bits to be ored together */
		498	enum {
397	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */	499	EVBACKEND_SELECT = 0x00000001U, /* about anywhere */
398	#define EVBACKEND_POLL 0x00000002U /* !win */	500	EVBACKEND_POLL = 0x00000002U, /* !win */
399	#define EVBACKEND_EPOLL 0x00000004U /* linux */	501	EVBACKEND_EPOLL = 0x00000004U, /* linux */
400	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */	502	EVBACKEND_KQUEUE = 0x00000008U, /* bsd */
401	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */	503	EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 / / NYI */
402	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */	504	EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
		505	EVBACKEND_ALL = 0x0000003FU
		506	};
403		507
404	#if EV_PROTOTYPES	508	#if EV_PROTOTYPES
405	int ev_version_major (void);	509	int ev_version_major (void);
406	int ev_version_minor (void);	510	int ev_version_minor (void);
407		511
…		…
425	* (such as failed select, poll, epoll_wait)	529	* (such as failed select, poll, epoll_wait)
426	*/	530	*/
427	void ev_set_syserr_cb (void (cb)(const char msg));	531	void ev_set_syserr_cb (void (cb)(const char msg));
428		532
429	#if EV_MULTIPLICITY	533	#if EV_MULTIPLICITY
		534
		535	/* the default loop is the only one that handles signals and child watchers */
		536	/* you can call this as often as you like */
		537	struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0));
		538
430	EV_INLINE struct ev_loop *	539	EV_INLINE struct ev_loop *
431	ev_default_loop_uc (void)	540	ev_default_loop_uc_ (void)
432	{	541	{
433	extern struct ev_loop *ev_default_loop_ptr;	542	extern struct ev_loop *ev_default_loop_ptr;
434		543
435	return ev_default_loop_ptr;	544	return ev_default_loop_ptr;
436	}	545	}
437		546
438	/* the default loop is the only one that handles signals and child watchers */	547	EV_INLINE int
439	/* you can call this as often as you like */	548	ev_is_default_loop (EV_P)
440	EV_INLINE struct ev_loop *
441	ev_default_loop (unsigned int flags)
442	{	549	{
443	struct ev_loop *loop = ev_default_loop_uc ();	550	return EV_A == EV_DEFAULT_UC;
444
445	if (!loop)
446	{
447	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
448
449	loop = ev_default_loop_init (flags);
450	}
451
452	return loop;
453	}	551	}
454		552
455	/* create and destroy alternative loops that don't handle signals */	553	/* create and destroy alternative loops that don't handle signals */
456	struct ev_loop *ev_loop_new (unsigned int flags);	554	struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0));
457	void ev_loop_destroy (EV_P);
458	void ev_loop_fork (EV_P);
459	void ev_loop_verify (EV_P);
460		555
461	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 */
462	void ev_now_update (EV_P);
463		557
464	#else	558	#else
465		559
466	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 */
467		561
468	EV_INLINE ev_tstamp	562	EV_INLINE ev_tstamp
469	ev_now (void)	563	ev_now (void)
470	{	564	{
471	extern ev_tstamp ev_rt_now;	565	extern ev_tstamp ev_rt_now;
472		566
473	return ev_rt_now;	567	return ev_rt_now;
474	}	568	}
		569
		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
475	#endif /* multiplicity */	577	#endif /* multiplicity */
476		578
477	EV_INLINE int	579	/* destroy event loops, also works for the default loop */
478	ev_is_default_loop (EV_P)	580	void ev_loop_destroy (EV_P);
479	{
480	#if EV_MULTIPLICITY
481	extern struct ev_loop *ev_default_loop_ptr;
482		581
483	return !!(EV_A == ev_default_loop_ptr);
484	#else
485	return 1;
486	#endif
487	}
488
489	void ev_default_destroy (void); /* destroy the default loop */
490	/* this needs to be called after fork, to duplicate the default loop */	582	/* this needs to be called after fork, to duplicate the loop */
491	/* if you create alternative loops you have to call ev_loop_fork on them */	583	/* when you want to re-use it in the child */
492	/* you can call it in either the parent or the child */	584	/* you can call it in either the parent or the child */
493	/* you can actually call it at any time, anywhere :) */	585	/* you can actually call it at any time, anywhere :) */
494	void ev_default_fork (void);	586	void ev_loop_fork (EV_P);
495		587
496	#if 0	588	unsigned int ev_backend (EV_P); /* backend in use by loop */
		589
		590	void ev_now_update (EV_P); /* update event loop time */
		591
		592	#if EV_WALK_ENABLE
497	/* walk (almost) all watchers in the loop of a given type, invoking the */	593	/* walk (almost) all watchers in the loop of a given type, invoking the */
498	/* callback on every such watcher. The callback might stop the watcher, */	594	/* callback on every such watcher. The callback might stop the watcher, */
499	/* but do nothing else with the loop */	595	/* but do nothing else with the loop */
500	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));	596	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
501	#endif	597	#endif
502		598
503	unsigned int ev_backend (EV_P); /* backend in use by loop */
504	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
505	#endif /* prototypes */	599	#endif /* prototypes */
506		600
507	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	601	/* ev_run flags values */
508	#define EVLOOP_ONESHOT 2 /* block once only */	602	enum {
509	#define EVUNLOOP_CANCEL 0 /* undo unloop */	603	EVRUN_NOWAIT = 1, /* do not block/wait */
510	#define EVUNLOOP_ONE 1 /* unloop once */	604	EVRUN_ONCE = 2 /* block once only */
		605	};
		606
		607	/* ev_break how values */
		608	enum {
		609	EVBREAK_CANCEL = 0, /* undo unloop */
		610	EVBREAK_ONE = 1, /* unloop once */
511	#define EVUNLOOP_ALL 2 /* unloop all loops */	611	EVBREAK_ALL = 2 /* unloop all loops */
		612	};
512		613
513	#if EV_PROTOTYPES	614	#if EV_PROTOTYPES
514	void ev_loop (EV_P_ int flags);	615	void ev_run (EV_P_ int flags EV_CPP (= 0));
515	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 */	616	void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */
516
517	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
518	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
519		617
520	/*	618	/*
521	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	619	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
522	* keeps one reference. if you have a long-runing watcher you never unregister that	620	* keeps one reference. if you have a long-running watcher you never unregister that
523	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	621	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
524	*/	622	*/
525	void ev_ref (EV_P);	623	void ev_ref (EV_P);
526	void ev_unref (EV_P);	624	void ev_unref (EV_P);
527		625
		626	/*
528	/* convenience function, wait for a single event, without registering an event watcher */	627	* convenience function, wait for a single event, without registering an event watcher
529	/* if timeout is < 0, do wait indefinitely */	628	* if timeout is < 0, do wait indefinitely
		629	*/
530	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	630	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
		631
		632	# if EV_FEATURE_API
		633	unsigned int ev_iteration (EV_P); /* number of loop iterations */
		634	unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
		635	void ev_verify (EV_P); /* abort if loop data corrupted */
		636
		637	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		638	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		639
		640	/* advanced stuff for threading etc. support, see docs */
		641	void ev_set_userdata (EV_P_ void *data);
		642	void *ev_userdata (EV_P);
		643	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
		644	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));
		645
		646	unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
		647	void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		648
		649	/*
		650	* stop/start the timer handling.
		651	*/
		652	void ev_suspend (EV_P);
		653	void ev_resume (EV_P);
		654	#endif
		655
531	#endif	656	#endif
532		657
533	/* these may evaluate ev multiple times, and the other arguments at most once */	658	/* these may evaluate ev multiple times, and the other arguments at most once */
534	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	659	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
535	#define ev_init(ev,cb_) do { \	660	#define ev_init(ev,cb_) do { \
536	((ev_watcher )(void )(ev))->active = \	661	((ev_watcher )(void )(ev))->active = \
537	((ev_watcher )(void )(ev))->pending = \	662	((ev_watcher )(void )(ev))->pending = 0; \
538	((ev_watcher )(void )(ev))->priority = 0; \	663	ev_set_priority ((ev), 0); \
539	ev_set_cb ((ev), cb_); \	664	ev_set_cb ((ev), cb_); \
540	} while (0)	665	} while (0)
541		666
542	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)	667	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
543	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)	668	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
…		…
548	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	673	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
549	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	674	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
550	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	675	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
551	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)	676	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
552	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	677	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
553	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)	678	#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
		679	#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
554		680
555	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	681	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
556	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	682	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
557	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)	683	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
558	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	684	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
…		…
561	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	687	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
562	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	688	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
563	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	689	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
564	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)	690	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
565	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	691	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		692	#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
566	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)	693	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
567		694
568	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	695	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
569	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	696	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
570		697
571	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
572	#define ev_cb(ev) (ev)->cb /* rw */	698	#define ev_cb(ev) (ev)->cb /* rw */
		699
		700	#if EV_MINPRI == EV_MAXPRI
		701	# define ev_priority(ev) ((ev), EV_MINPRI)
		702	# define ev_set_priority(ev,pri) ((ev), (pri))
		703	#else
		704	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
573	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)	705	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		706	#endif
574		707
575	#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)	708	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
576		709
577	#ifndef ev_set_cb	710	#ifndef ev_set_cb
578	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	711	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
579	#endif	712	#endif
580		713
…		…
584		717
585	/* feeds an event into a watcher as if the event actually occured */	718	/* feeds an event into a watcher as if the event actually occured */
586	/* accepts any ev_watcher type */	719	/* accepts any ev_watcher type */
587	void ev_feed_event (EV_P_ void *w, int revents);	720	void ev_feed_event (EV_P_ void *w, int revents);
588	void ev_feed_fd_event (EV_P_ int fd, int revents);	721	void ev_feed_fd_event (EV_P_ int fd, int revents);
		722	#if EV_SIGNAL_ENABLE
589	void ev_feed_signal_event (EV_P_ int signum);	723	void ev_feed_signal_event (EV_P_ int signum);
		724	#endif
590	void ev_invoke (EV_P_ void *w, int revents);	725	void ev_invoke (EV_P_ void *w, int revents);
591	int ev_clear_pending (EV_P_ void *w);	726	int ev_clear_pending (EV_P_ void *w);
592		727
593	void ev_io_start (EV_P_ ev_io *w);	728	void ev_io_start (EV_P_ ev_io *w);
594	void ev_io_stop (EV_P_ ev_io *w);	729	void ev_io_stop (EV_P_ ev_io *w);
595		730
596	void ev_timer_start (EV_P_ ev_timer *w);	731	void ev_timer_start (EV_P_ ev_timer *w);
597	void ev_timer_stop (EV_P_ ev_timer *w);	732	void ev_timer_stop (EV_P_ ev_timer *w);
598	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	733	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
599	void ev_timer_again (EV_P_ ev_timer *w);	734	void ev_timer_again (EV_P_ ev_timer *w);
		735	/* return remaining time */
		736	ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
600		737
601	#if EV_PERIODIC_ENABLE	738	#if EV_PERIODIC_ENABLE
602	void ev_periodic_start (EV_P_ ev_periodic *w);	739	void ev_periodic_start (EV_P_ ev_periodic *w);
603	void ev_periodic_stop (EV_P_ ev_periodic *w);	740	void ev_periodic_stop (EV_P_ ev_periodic *w);
604	void ev_periodic_again (EV_P_ ev_periodic *w);	741	void ev_periodic_again (EV_P_ ev_periodic *w);
605	#endif	742	#endif
606		743
607	/* only supported in the default loop */	744	/* only supported in the default loop */
		745	#if EV_SIGNAL_ENABLE
608	void ev_signal_start (EV_P_ ev_signal *w);	746	void ev_signal_start (EV_P_ ev_signal *w);
609	void ev_signal_stop (EV_P_ ev_signal *w);	747	void ev_signal_stop (EV_P_ ev_signal *w);
		748	#endif
610		749
611	/* only supported in the default loop */	750	/* only supported in the default loop */
		751	# if EV_CHILD_ENABLE
612	void ev_child_start (EV_P_ ev_child *w);	752	void ev_child_start (EV_P_ ev_child *w);
613	void ev_child_stop (EV_P_ ev_child *w);	753	void ev_child_stop (EV_P_ ev_child *w);
		754	# endif
614		755
615	# if EV_STAT_ENABLE	756	# if EV_STAT_ENABLE
616	void ev_stat_start (EV_P_ ev_stat *w);	757	void ev_stat_start (EV_P_ ev_stat *w);
617	void ev_stat_stop (EV_P_ ev_stat *w);	758	void ev_stat_stop (EV_P_ ev_stat *w);
618	void ev_stat_stat (EV_P_ ev_stat *w);	759	void ev_stat_stat (EV_P_ ev_stat *w);
…		…
621	# if EV_IDLE_ENABLE	762	# if EV_IDLE_ENABLE
622	void ev_idle_start (EV_P_ ev_idle *w);	763	void ev_idle_start (EV_P_ ev_idle *w);
623	void ev_idle_stop (EV_P_ ev_idle *w);	764	void ev_idle_stop (EV_P_ ev_idle *w);
624	# endif	765	# endif
625		766
		767	#if EV_PREPARE_ENABLE
626	void ev_prepare_start (EV_P_ ev_prepare *w);	768	void ev_prepare_start (EV_P_ ev_prepare *w);
627	void ev_prepare_stop (EV_P_ ev_prepare *w);	769	void ev_prepare_stop (EV_P_ ev_prepare *w);
		770	#endif
628		771
		772	#if EV_CHECK_ENABLE
629	void ev_check_start (EV_P_ ev_check *w);	773	void ev_check_start (EV_P_ ev_check *w);
630	void ev_check_stop (EV_P_ ev_check *w);	774	void ev_check_stop (EV_P_ ev_check *w);
		775	#endif
631		776
632	# if EV_FORK_ENABLE	777	# if EV_FORK_ENABLE
633	void ev_fork_start (EV_P_ ev_fork *w);	778	void ev_fork_start (EV_P_ ev_fork *w);
634	void ev_fork_stop (EV_P_ ev_fork *w);	779	void ev_fork_stop (EV_P_ ev_fork *w);
		780	# endif
		781
		782	# if EV_CLEANUP_ENABLE
		783	void ev_cleanup_start (EV_P_ ev_cleanup *w);
		784	void ev_cleanup_stop (EV_P_ ev_cleanup *w);
635	# endif	785	# endif
636		786
637	# if EV_EMBED_ENABLE	787	# if EV_EMBED_ENABLE
638	/* only supported when loop to be embedded is in fact embeddable */	788	/* only supported when loop to be embedded is in fact embeddable */
639	void ev_embed_start (EV_P_ ev_embed *w);	789	void ev_embed_start (EV_P_ ev_embed *w);
…		…
645	void ev_async_start (EV_P_ ev_async *w);	795	void ev_async_start (EV_P_ ev_async *w);
646	void ev_async_stop (EV_P_ ev_async *w);	796	void ev_async_stop (EV_P_ ev_async *w);
647	void ev_async_send (EV_P_ ev_async *w);	797	void ev_async_send (EV_P_ ev_async *w);
648	# endif	798	# endif
649		799
		800	#if EV_COMPAT3
		801	#define EVLOOP_NONBLOCK EVRUN_NOWAIT
		802	#define EVLOOP_ONESHOT EVRUN_ONCE
		803	#define EVUNLOOP_CANCEL EVBREAK_CANCEL
		804	#define EVUNLOOP_ONE EVBREAK_ONE
		805	#define EVUNLOOP_ALL EVBREAK_ALL
		806	#if EV_PROTOTYPES
		807	EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
		808	EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
		809	EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
		810	EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
		811	#if EV_FEATURE_API
		812	EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
		813	EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
		814	EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
		815	#endif
650	#endif	816	#endif
651		817	#else
652	#ifdef __cplusplus	818	typedef struct ev_loop ev_loop;
653	}
654	#endif	819	#endif
655		820
656	#endif	821	#endif
657		822
		823	EV_CPP(})
		824
		825	#endif
		826

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Comparing libev/ev.h (file contents): Revision 1.112 by root, Sat Mar 28 22:17:17 2009 UTC vs. Revision 1.155 by root, Thu Nov 4 18:40:09 2010 UTC

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Comparing libev/ev.h (file contents):
Revision 1.112 by root, Sat Mar 28 22:17:17 2009 UTC vs.
Revision 1.155 by root, Thu Nov 4 18:40:09 2010 UTC