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

Comparing libev/ev.h (file contents):
Revision 1.134 by root, Tue Mar 16 00:20:17 2010 UTC vs.
Revision 1.166 by root, Mon Apr 2 23:46:11 2012 UTC

…		…
1	/*	1	/*
2	* libev native API header	2	* libev native API header
3	*	3	*
4	* Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009,2010,2011,2012 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	*
10	* 1. Redistributions of source code must retain the above copyright notice,	10	* 1. Redistributions of source code must retain the above copyright notice,
11	* this list of conditions and the following disclaimer.	11	* this list of conditions and the following disclaimer.
12	*	12	*
13	* 2. Redistributions in binary form must reproduce the above copyright	13	* 2. Redistributions in binary form must reproduce the above copyright
14	* notice, this list of conditions and the following disclaimer in the	14	* notice, this list of conditions and the following disclaimer in the
15	* documentation and/or other materials provided with the distribution.	15	* documentation and/or other materials provided with the distribution.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-	18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO	19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-	20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,	21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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" {)
45	#endif
46		50
47	/*****************************************************************************/	51	/*****************************************************************************/
48		52
		53	/* pre-4.0 compatibility */
		54	#ifndef EV_COMPAT3
		55	# define EV_COMPAT3 1
		56	#endif
		57
49	#ifndef EV_FEATURES	58	#ifndef EV_FEATURES
		59	# if defined __OPTIMIZE_SIZE__
		60	# define EV_FEATURES 0x7c
		61	# else
50	# define EV_FEATURES 0x3f	62	# define EV_FEATURES 0x7f
		63	# endif
51	#endif	64	#endif
52		65
53	#define EV_FEATURE_CODE ((EV_FEATURES) & 1)	66	#define EV_FEATURE_CODE ((EV_FEATURES) & 1)
54	#define EV_FEATURE_DATA ((EV_FEATURES) & 2)	67	#define EV_FEATURE_DATA ((EV_FEATURES) & 2)
		68	#define EV_FEATURE_CONFIG ((EV_FEATURES) & 4)
55	#define EV_FEATURE_API ((EV_FEATURES) & 4)	69	#define EV_FEATURE_API ((EV_FEATURES) & 8)
56	#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 8)	70	#define EV_FEATURE_WATCHERS ((EV_FEATURES) & 16)
57	#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 16)	71	#define EV_FEATURE_BACKENDS ((EV_FEATURES) & 32)
58	#define EV_FEATURE_OS ((EV_FEATURES) & 32)	72	#define EV_FEATURE_OS ((EV_FEATURES) & 64)
59		73
60	/* these priorities are inclusive, higher priorities will be called earlier */	74	/* these priorities are inclusive, higher priorities will be invoked earlier */
61	#ifndef EV_MINPRI	75	#ifndef EV_MINPRI
62	# define EV_MINPRI (EV_FEATURE_API ? -2 : 0)	76	# define EV_MINPRI (EV_FEATURE_CONFIG ? -2 : 0)
63	#endif	77	#endif
64	#ifndef EV_MAXPRI	78	#ifndef EV_MAXPRI
65	# define EV_MAXPRI (EV_FEATURE_API ? +2 : 0)	79	# define EV_MAXPRI (EV_FEATURE_CONFIG ? +2 : 0)
66	#endif	80	#endif
67		81
68	#ifndef EV_MULTIPLICITY	82	#ifndef EV_MULTIPLICITY
69	# define EV_MULTIPLICITY EV_FEATURE_API	83	# define EV_MULTIPLICITY EV_FEATURE_CONFIG
70	#endif	84	#endif
71		85
72	#ifndef EV_PERIODIC_ENABLE	86	#ifndef EV_PERIODIC_ENABLE
73	# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS	87	# define EV_PERIODIC_ENABLE EV_FEATURE_WATCHERS
74	#endif	88	#endif
…		…
89	# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS	103	# define EV_IDLE_ENABLE EV_FEATURE_WATCHERS
90	#endif	104	#endif
91		105
92	#ifndef EV_FORK_ENABLE	106	#ifndef EV_FORK_ENABLE
93	# define EV_FORK_ENABLE EV_FEATURE_WATCHERS	107	# define EV_FORK_ENABLE EV_FEATURE_WATCHERS
		108	#endif
		109
		110	#ifndef EV_CLEANUP_ENABLE
		111	# define EV_CLEANUP_ENABLE EV_FEATURE_WATCHERS
94	#endif	112	#endif
95		113
96	#ifndef EV_SIGNAL_ENABLE	114	#ifndef EV_SIGNAL_ENABLE
97	# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS	115	# define EV_SIGNAL_ENABLE EV_FEATURE_WATCHERS
98	#endif	116	#endif
…		…
124	# define EV_SIGNAL_ENABLE 1	142	# define EV_SIGNAL_ENABLE 1
125	#endif	143	#endif
126		144
127	/*****************************************************************************/	145	/*****************************************************************************/
128		146
129	#if !EV_FEATURE_CODE && !defined (NDEBUG)
130	# define NDEBUG 1
131	# include <assert.h>
132	#endif
133
134	typedef double ev_tstamp;	147	typedef double ev_tstamp;
135		148
136	#ifndef EV_ATOMIC_T	149	#ifndef EV_ATOMIC_T
137	# include <signal.h>	150	# include <signal.h>
138	# define EV_ATOMIC_T sig_atomic_t volatile	151	# define EV_ATOMIC_T sig_atomic_t volatile
…		…
147	#endif	160	#endif
148		161
149	/* support multiple event loops? */	162	/* support multiple event loops? */
150	#if EV_MULTIPLICITY	163	#if EV_MULTIPLICITY
151	struct ev_loop;	164	struct ev_loop;
152	# define EV_P struct ev_loop *loop	165	# define EV_P struct ev_loop loop / a loop as sole parameter in a declaration */
153	# define EV_P_ EV_P,	166	# define EV_P_ EV_P, /* a loop as first of multiple parameters */
154	# define EV_A loop	167	# define EV_A loop /* a loop as sole argument to a function call */
155	# define EV_A_ EV_A,	168	# define EV_A_ EV_A, /* a loop as first of multiple arguments */
156	# define EV_DEFAULT_UC ev_default_loop_uc ()	169	# define EV_DEFAULT_UC ev_default_loop_uc_ () /* the default loop, if initialised, as sole arg */
157	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,	170	# define EV_DEFAULT_UC_ EV_DEFAULT_UC, /* the default loop as first of multiple arguments */
158	# define EV_DEFAULT ev_default_loop (0)	171	# define EV_DEFAULT ev_default_loop (0) /* the default loop as sole arg */
159	# define EV_DEFAULT_ EV_DEFAULT,	172	# define EV_DEFAULT_ EV_DEFAULT, /* the default loop as first of multiple arguments */
160	#else	173	#else
161	# define EV_P void	174	# define EV_P void
162	# define EV_P_	175	# define EV_P_
163	# define EV_A	176	# define EV_A
164	# define EV_A_	177	# define EV_A_
…		…
167	# define EV_DEFAULT_UC	180	# define EV_DEFAULT_UC
168	# define EV_DEFAULT_UC_	181	# define EV_DEFAULT_UC_
169	# undef EV_EMBED_ENABLE	182	# undef EV_EMBED_ENABLE
170	#endif	183	#endif
171		184
		185	/* EV_INLINE is used for functions in header files */
172	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3	186	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
173	# define EV_INLINE static inline	187	# define EV_INLINE static inline
174	#else	188	#else
175	# define EV_INLINE static	189	# define EV_INLINE static
176	#endif	190	#endif
177		191
		192	#ifdef EV_API_STATIC
		193	# define EV_API_DECL static
		194	#else
		195	# define EV_API_DECL extern
		196	#endif
		197
		198	/* EV_PROTOTYPES can be used to switch of prototype declarations */
		199	#ifndef EV_PROTOTYPES
		200	# define EV_PROTOTYPES 1
		201	#endif
		202
178	/*****************************************************************************/	203	/*****************************************************************************/
179		204
		205	#define EV_VERSION_MAJOR 4
		206	#define EV_VERSION_MINOR 11
		207
180	/* eventmask, revents, events... */	208	/* eventmask, revents, events... */
181	#define EV_UNDEF -1 /* guaranteed to be invalid */	209	enum {
		210	EV_UNDEF = 0xFFFFFFFF, /* guaranteed to be invalid */
182	#define EV_NONE 0x00 /* no events */	211	EV_NONE = 0x00, /* no events */
183	#define EV_READ 0x01 /* ev_io detected read will not block */	212	EV_READ = 0x01, /* ev_io detected read will not block */
184	#define EV_WRITE 0x02 /* ev_io detected write will not block */	213	EV_WRITE = 0x02, /* ev_io detected write will not block */
185	#define EV__IOFDSET 0x80 /* internal use only */	214	EV__IOFDSET = 0x80, /* internal use only */
186	#define EV_IO EV_READ /* alias for type-detection */	215	EV_IO = EV_READ, /* alias for type-detection */
187	#define EV_TIMEOUT 0x00000100 /* timer timed out */	216	EV_TIMER = 0x00000100, /* timer timed out */
188	#define EV_TIMER EV_TIMEOUT /* alias for type-detection */	217	#if EV_COMPAT3
		218	EV_TIMEOUT = EV_TIMER, /* pre 4.0 API compatibility */
		219	#endif
189	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */	220	EV_PERIODIC = 0x00000200, /* periodic timer timed out */
190	#define EV_SIGNAL 0x00000400 /* signal was received */	221	EV_SIGNAL = 0x00000400, /* signal was received */
191	#define EV_CHILD 0x00000800 /* child/pid had status change */	222	EV_CHILD = 0x00000800, /* child/pid had status change */
192	#define EV_STAT 0x00001000 /* stat data changed */	223	EV_STAT = 0x00001000, /* stat data changed */
193	#define EV_IDLE 0x00002000 /* event loop is idling */	224	EV_IDLE = 0x00002000, /* event loop is idling */
194	#define EV_PREPARE 0x00004000 /* event loop about to poll */	225	EV_PREPARE = 0x00004000, /* event loop about to poll */
195	#define EV_CHECK 0x00008000 /* event loop finished poll */	226	EV_CHECK = 0x00008000, /* event loop finished poll */
196	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */	227	EV_EMBED = 0x00010000, /* embedded event loop needs sweep */
197	#define EV_FORK 0x00020000 /* event loop resumed in child */	228	EV_FORK = 0x00020000, /* event loop resumed in child */
		229	EV_CLEANUP = 0x00040000, /* event loop resumed in child */
198	#define EV_ASYNC 0x00040000 /* async intra-loop signal */	230	EV_ASYNC = 0x00080000, /* async intra-loop signal */
199	#define EV_CUSTOM 0x01000000 /* for use by user code */	231	EV_CUSTOM = 0x01000000, /* for use by user code */
200	#define EV_ERROR 0x80000000 /* sent when an error occurs */	232	EV_ERROR = 0x80000000 /* sent when an error occurs */
		233	};
201		234
202	/* can be used to add custom fields to all watchers, while losing binary compatibility */	235	/* can be used to add custom fields to all watchers, while losing binary compatibility */
203	#ifndef EV_COMMON	236	#ifndef EV_COMMON
204	# define EV_COMMON void *data;	237	# define EV_COMMON void *data;
205	#endif	238	#endif
206	#ifndef EV_PROTOTYPES
207	# define EV_PROTOTYPES 1
208	#endif
209
210	#define EV_VERSION_MAJOR 3
211	#define EV_VERSION_MINOR 9
212		239
213	#ifndef EV_CB_DECLARE	240	#ifndef EV_CB_DECLARE
214	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	241	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
215	#endif	242	#endif
216	#ifndef EV_CB_INVOKE	243	#ifndef EV_CB_INVOKE
217	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	244	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
218	#endif	245	#endif
		246
		247	/* not official, do not use */
		248	#define EV_CB(type,name) void name (EV_P_ struct ev_ ## type *w, int revents)
219		249
220	/*	250	/*
221	* struct member types:	251	* struct member types:
222	* private: you may look at them, but not change them,	252	* private: you may look at them, but not change them,
223	* and they might not mean anything to you.	253	* and they might not mean anything to you.
…		…
234	* or the array index + 1 in the pendings array.	264	* or the array index + 1 in the pendings array.
235	*/	265	*/
236		266
237	#if EV_MINPRI == EV_MAXPRI	267	#if EV_MINPRI == EV_MAXPRI
238	# define EV_DECL_PRIORITY	268	# define EV_DECL_PRIORITY
239	#else	269	#elif !defined (EV_DECL_PRIORITY)
240	# define EV_DECL_PRIORITY int priority;	270	# define EV_DECL_PRIORITY int priority;
241	#endif	271	#endif
242		272
243	/* shared by all watchers */	273	/* shared by all watchers */
244	#define EV_WATCHER(type) \	274	#define EV_WATCHER(type) \
…		…
374	EV_WATCHER (ev_check)	404	EV_WATCHER (ev_check)
375	} ev_check;	405	} ev_check;
376		406
377	#if EV_FORK_ENABLE	407	#if EV_FORK_ENABLE
378	/* the callback gets invoked before check in the child process when a fork was detected */	408	/* the callback gets invoked before check in the child process when a fork was detected */
		409	/* revent EV_FORK */
379	typedef struct ev_fork	410	typedef struct ev_fork
380	{	411	{
381	EV_WATCHER (ev_fork)	412	EV_WATCHER (ev_fork)
382	} ev_fork;	413	} ev_fork;
		414	#endif
		415
		416	#if EV_CLEANUP_ENABLE
		417	/* is invoked just before the loop gets destroyed */
		418	/* revent EV_CLEANUP */
		419	typedef struct ev_cleanup
		420	{
		421	EV_WATCHER (ev_cleanup)
		422	} ev_cleanup;
383	#endif	423	#endif
384		424
385	#if EV_EMBED_ENABLE	425	#if EV_EMBED_ENABLE
386	/* used to embed an event loop inside another */	426	/* used to embed an event loop inside another */
387	/* the callback gets invoked when the event loop has handled events, and can be 0 */	427	/* the callback gets invoked when the event loop has handled events, and can be 0 */
…		…
395	ev_check check; /* unused */	435	ev_check check; /* unused */
396	ev_timer timer; /* unused */	436	ev_timer timer; /* unused */
397	ev_periodic periodic; /* unused */	437	ev_periodic periodic; /* unused */
398	ev_idle idle; /* unused */	438	ev_idle idle; /* unused */
399	ev_fork fork; /* private */	439	ev_fork fork; /* private */
		440	#if EV_CLEANUP_ENABLE
		441	ev_cleanup cleanup; /* unused */
		442	#endif
400	} ev_embed;	443	} ev_embed;
401	#endif	444	#endif
402		445
403	#if EV_ASYNC_ENABLE	446	#if EV_ASYNC_ENABLE
404	/* invoked when somebody calls ev_async_send on the watcher */	447	/* invoked when somebody calls ev_async_send on the watcher */
…		…
433	struct ev_prepare prepare;	476	struct ev_prepare prepare;
434	struct ev_check check;	477	struct ev_check check;
435	#if EV_FORK_ENABLE	478	#if EV_FORK_ENABLE
436	struct ev_fork fork;	479	struct ev_fork fork;
437	#endif	480	#endif
		481	#if EV_CLEANUP_ENABLE
		482	struct ev_cleanup cleanup;
		483	#endif
438	#if EV_EMBED_ENABLE	484	#if EV_EMBED_ENABLE
439	struct ev_embed embed;	485	struct ev_embed embed;
440	#endif	486	#endif
441	#if EV_ASYNC_ENABLE	487	#if EV_ASYNC_ENABLE
442	struct ev_async async;	488	struct ev_async async;
443	#endif	489	#endif
444	};	490	};
445		491
446	/* bits for ev_default_loop and ev_loop_new */	492	/* flag bits for ev_default_loop and ev_loop_new */
		493	enum {
447	/* the default */	494	/* the default */
448	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */	495	EVFLAG_AUTO = 0x00000000U, /* not quite a mask */
449	/* flag bits */	496	/* flag bits */
450	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */	497	EVFLAG_NOENV = 0x01000000U, /* do NOT consult environment */
451	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */	498	EVFLAG_FORKCHECK = 0x02000000U, /* check for a fork in each iteration */
452	/* debugging/feature disable */	499	/* debugging/feature disable */
453	#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */	500	EVFLAG_NOINOTIFY = 0x00100000U, /* do not attempt to use inotify */
		501	#if EV_COMPAT3
454	#define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */	502	EVFLAG_NOSIGFD = 0, /* compatibility to pre-3.9 */
		503	#endif
455	#define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */	504	EVFLAG_SIGNALFD = 0x00200000U, /* attempt to use signalfd */
		505	EVFLAG_NOSIGMASK = 0x00400000U /* avoid modifying the signal mask */
		506	};
		507
456	/* method bits to be ored together */	508	/* method bits to be ored together */
		509	enum {
457	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */	510	EVBACKEND_SELECT = 0x00000001U, /* about anywhere */
458	#define EVBACKEND_POLL 0x00000002U /* !win */	511	EVBACKEND_POLL = 0x00000002U, /* !win */
459	#define EVBACKEND_EPOLL 0x00000004U /* linux */	512	EVBACKEND_EPOLL = 0x00000004U, /* linux */
460	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */	513	EVBACKEND_KQUEUE = 0x00000008U, /* bsd */
461	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */	514	EVBACKEND_DEVPOLL = 0x00000010U, /* solaris 8 / / NYI */
462	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */	515	EVBACKEND_PORT = 0x00000020U, /* solaris 10 */
463	#define EVBACKEND_ALL 0x0000003FU	516	EVBACKEND_ALL = 0x0000003FU, /* all known backends */
		517	EVBACKEND_MASK = 0x0000FFFFU /* all future backends */
		518	};
464		519
465	#if EV_PROTOTYPES	520	#if EV_PROTOTYPES
466	int ev_version_major (void);	521	EV_API_DECL int ev_version_major (void);
467	int ev_version_minor (void);	522	EV_API_DECL int ev_version_minor (void);
468		523
469	unsigned int ev_supported_backends (void);	524	EV_API_DECL unsigned int ev_supported_backends (void);
470	unsigned int ev_recommended_backends (void);	525	EV_API_DECL unsigned int ev_recommended_backends (void);
471	unsigned int ev_embeddable_backends (void);	526	EV_API_DECL unsigned int ev_embeddable_backends (void);
472		527
473	ev_tstamp ev_time (void);	528	EV_API_DECL ev_tstamp ev_time (void);
474	void ev_sleep (ev_tstamp delay); /* sleep for a while */	529	EV_API_DECL void ev_sleep (ev_tstamp delay); /* sleep for a while */
475		530
476	/* Sets the allocation function to use, works like realloc.	531	/* Sets the allocation function to use, works like realloc.
477	* It is used to allocate and free memory.	532	* It is used to allocate and free memory.
478	* If it returns zero when memory needs to be allocated, the library might abort	533	* If it returns zero when memory needs to be allocated, the library might abort
479	* or take some potentially destructive action.	534	* or take some potentially destructive action.
480	* The default is your system realloc function.	535	* The default is your system realloc function.
481	*/	536	*/
482	void ev_set_allocator (void (cb)(void *ptr, long size));	537	EV_API_DECL void ev_set_allocator (void (cb)(void *ptr, long size));
483		538
484	/* set the callback function to call on a	539	/* set the callback function to call on a
485	* retryable syscall error	540	* retryable syscall error
486	* (such as failed select, poll, epoll_wait)	541	* (such as failed select, poll, epoll_wait)
487	*/	542	*/
488	void ev_set_syserr_cb (void (cb)(const char msg));	543	EV_API_DECL void ev_set_syserr_cb (void (cb)(const char msg));
489		544
490	#if EV_MULTIPLICITY	545	#if EV_MULTIPLICITY
		546
		547	/* the default loop is the only one that handles signals and child watchers */
		548	/* you can call this as often as you like */
		549	EV_API_DECL struct ev_loop *ev_default_loop (unsigned int flags EV_CPP (= 0));
		550
		551	#ifdef EV_API_STATIC
		552	EV_API_DECL struct ev_loop *ev_default_loop_ptr;
		553	#endif
		554
491	EV_INLINE struct ev_loop *	555	EV_INLINE struct ev_loop *
492	ev_default_loop_uc (void)	556	ev_default_loop_uc_ (void)
493	{	557	{
494	extern struct ev_loop *ev_default_loop_ptr;	558	extern struct ev_loop *ev_default_loop_ptr;
495		559
496	return ev_default_loop_ptr;	560	return ev_default_loop_ptr;
497	}	561	}
498		562
499	/* the default loop is the only one that handles signals and child watchers */	563	EV_INLINE int
500	/* you can call this as often as you like */	564	ev_is_default_loop (EV_P)
501	EV_INLINE struct ev_loop *
502	ev_default_loop (unsigned int flags)
503	{	565	{
504	struct ev_loop *loop = ev_default_loop_uc ();	566	return EV_A == EV_DEFAULT_UC;
505
506	if (!loop)
507	{
508	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
509
510	loop = ev_default_loop_init (flags);
511	}
512
513	return loop;
514	}	567	}
515		568
516	/* create and destroy alternative loops that don't handle signals */	569	/* create and destroy alternative loops that don't handle signals */
517	struct ev_loop *ev_loop_new (unsigned int flags);	570	EV_API_DECL struct ev_loop *ev_loop_new (unsigned int flags EV_CPP (= 0));
518	void ev_loop_destroy (EV_P);
519	void ev_loop_fork (EV_P);
520		571
521	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	572	EV_API_DECL ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
522		573
523	#else	574	#else
524		575
525	int ev_default_loop (unsigned int flags); /* returns true when successful */	576	EV_API_DECL int ev_default_loop (unsigned int flags EV_CPP (= 0)); /* returns true when successful */
		577
		578	EV_API_DECL ev_tstamp ev_rt_now;
526		579
527	EV_INLINE ev_tstamp	580	EV_INLINE ev_tstamp
528	ev_now (void)	581	ev_now (void)
529	{	582	{
530	extern ev_tstamp ev_rt_now;
531
532	return ev_rt_now;	583	return ev_rt_now;
533	}	584	}
		585
		586	/* looks weird, but ev_is_default_loop (EV_A) still works if this exists */
		587	EV_INLINE int
		588	ev_is_default_loop (void)
		589	{
		590	return 1;
		591	}
		592
534	#endif /* multiplicity */	593	#endif /* multiplicity */
535		594
536	EV_INLINE int	595	/* destroy event loops, also works for the default loop */
537	ev_is_default_loop (EV_P)	596	EV_API_DECL void ev_loop_destroy (EV_P);
538	{
539	#if EV_MULTIPLICITY
540	extern struct ev_loop *ev_default_loop_ptr;
541		597
542	return !!(EV_A == ev_default_loop_ptr);
543	#else
544	return 1;
545	#endif
546	}
547
548	void ev_default_destroy (void); /* destroy the default loop */
549	/* this needs to be called after fork, to duplicate the default loop */	598	/* this needs to be called after fork, to duplicate the loop */
550	/* if you create alternative loops you have to call ev_loop_fork on them */	599	/* when you want to re-use it in the child */
551	/* you can call it in either the parent or the child */	600	/* you can call it in either the parent or the child */
552	/* you can actually call it at any time, anywhere :) */	601	/* you can actually call it at any time, anywhere :) */
553	void ev_default_fork (void);	602	EV_API_DECL void ev_loop_fork (EV_P);
554		603
555	unsigned int ev_backend (EV_P); /* backend in use by loop */	604	EV_API_DECL unsigned int ev_backend (EV_P); /* backend in use by loop */
556		605
557	void ev_now_update (EV_P); /* update event loop time */	606	EV_API_DECL void ev_now_update (EV_P); /* update event loop time */
558		607
559	#if EV_WALK_ENABLE	608	#if EV_WALK_ENABLE
560	/* walk (almost) all watchers in the loop of a given type, invoking the */	609	/* walk (almost) all watchers in the loop of a given type, invoking the */
561	/* callback on every such watcher. The callback might stop the watcher, */	610	/* callback on every such watcher. The callback might stop the watcher, */
562	/* but do nothing else with the loop */	611	/* but do nothing else with the loop */
563	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));	612	EV_API_DECL void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
564	#endif	613	#endif
565		614
566	#endif /* prototypes */	615	#endif /* prototypes */
567		616
568	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	617	/* ev_run flags values */
569	#define EVLOOP_ONESHOT 2 /* block once only */	618	enum {
570	#define EVUNLOOP_CANCEL 0 /* undo unloop */	619	EVRUN_NOWAIT = 1, /* do not block/wait */
571	#define EVUNLOOP_ONE 1 /* unloop once */	620	EVRUN_ONCE = 2 /* block once only */
		621	};
		622
		623	/* ev_break how values */
		624	enum {
		625	EVBREAK_CANCEL = 0, /* undo unloop */
		626	EVBREAK_ONE = 1, /* unloop once */
572	#define EVUNLOOP_ALL 2 /* unloop all loops */	627	EVBREAK_ALL = 2 /* unloop all loops */
		628	};
573		629
574	#if EV_PROTOTYPES	630	#if EV_PROTOTYPES
575	void ev_loop (EV_P_ int flags);	631	EV_API_DECL int ev_run (EV_P_ int flags EV_CPP (= 0));
576	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 */	632	EV_API_DECL void ev_break (EV_P_ int how EV_CPP (= EVBREAK_ONE)); /* break out of the loop */
577		633
578	/*	634	/*
579	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	635	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
580	* keeps one reference. if you have a long-running watcher you never unregister that	636	* keeps one reference. if you have a long-running watcher you never unregister that
581	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	637	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
582	*/	638	*/
583	void ev_ref (EV_P);	639	EV_API_DECL void ev_ref (EV_P);
584	void ev_unref (EV_P);	640	EV_API_DECL void ev_unref (EV_P);
585		641
586	/*	642	/*
587	* convenience function, wait for a single event, without registering an event watcher	643	* convenience function, wait for a single event, without registering an event watcher
588	* if timeout is < 0, do wait indefinitely	644	* if timeout is < 0, do wait indefinitely
589	*/	645	*/
590	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	646	EV_API_DECL void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
591		647
592	# if EV_FEATURE_API	648	# if EV_FEATURE_API
593	unsigned int ev_loop_count (EV_P); /* number of loop iterations */	649	EV_API_DECL unsigned int ev_iteration (EV_P); /* number of loop iterations */
594	unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */	650	EV_API_DECL unsigned int ev_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
595	void ev_loop_verify (EV_P); /* abort if loop data corrupted */	651	EV_API_DECL void ev_verify (EV_P); /* abort if loop data corrupted */
596		652
597	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */	653	EV_API_DECL void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
598	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */	654	EV_API_DECL void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
599		655
600	/* advanced stuff for threading etc. support, see docs */	656	/* advanced stuff for threading etc. support, see docs */
601	void ev_set_userdata (EV_P_ void *data);	657	EV_API_DECL void ev_set_userdata (EV_P_ void *data);
602	void *ev_userdata (EV_P);	658	EV_API_DECL void *ev_userdata (EV_P);
603	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));	659	EV_API_DECL void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
604	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));	660	EV_API_DECL void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));
605		661
606	unsigned int ev_pending_count (EV_P); /* number of pending events, if any */	662	EV_API_DECL unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
607	void ev_invoke_pending (EV_P); /* invoke all pending watchers */	663	EV_API_DECL void ev_invoke_pending (EV_P); /* invoke all pending watchers */
608		664
609	/*	665	/*
610	* stop/start the timer handling.	666	* stop/start the timer handling.
611	*/	667	*/
612	void ev_suspend (EV_P);	668	EV_API_DECL void ev_suspend (EV_P);
613	void ev_resume (EV_P);	669	EV_API_DECL void ev_resume (EV_P);
614	#endif	670	#endif
615		671
616	#endif	672	#endif
617		673
618	/* these may evaluate ev multiple times, and the other arguments at most once */	674	/* these may evaluate ev multiple times, and the other arguments at most once */
…		…
633	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	689	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
634	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	690	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
635	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	691	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
636	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)	692	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
637	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	693	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
638	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)	694	#define ev_cleanup_set(ev) /* nop, yes, this is a serious in-joke */
		695	#define ev_async_set(ev) /* nop, yes, this is a serious in-joke */
639		696
640	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	697	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
641	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	698	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
642	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)	699	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
643	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	700	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
…		…
646	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	703	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
647	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	704	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
648	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	705	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
649	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)	706	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
650	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	707	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		708	#define ev_cleanup_init(ev,cb) do { ev_init ((ev), (cb)); ev_cleanup_set ((ev)); } while (0)
651	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)	709	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
652		710
653	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	711	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
654	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	712	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
655		713
…		…
671		729
672	/* stopping (enabling, adding) a watcher does nothing if it is already running */	730	/* stopping (enabling, adding) a watcher does nothing if it is already running */
673	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	731	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
674	#if EV_PROTOTYPES	732	#if EV_PROTOTYPES
675		733
676	/* feeds an event into a watcher as if the event actually occured */	734	/* feeds an event into a watcher as if the event actually occurred */
677	/* accepts any ev_watcher type */	735	/* accepts any ev_watcher type */
678	void ev_feed_event (EV_P_ void *w, int revents);	736	EV_API_DECL void ev_feed_event (EV_P_ void *w, int revents);
679	void ev_feed_fd_event (EV_P_ int fd, int revents);	737	EV_API_DECL void ev_feed_fd_event (EV_P_ int fd, int revents);
680	#if EV_SIGNAL_ENABLE	738	#if EV_SIGNAL_ENABLE
		739	EV_API_DECL void ev_feed_signal (int signum);
681	void ev_feed_signal_event (EV_P_ int signum);	740	EV_API_DECL void ev_feed_signal_event (EV_P_ int signum);
682	#endif	741	#endif
683	void ev_invoke (EV_P_ void *w, int revents);	742	EV_API_DECL void ev_invoke (EV_P_ void *w, int revents);
684	int ev_clear_pending (EV_P_ void *w);	743	EV_API_DECL int ev_clear_pending (EV_P_ void *w);
685		744
686	void ev_io_start (EV_P_ ev_io *w);	745	EV_API_DECL void ev_io_start (EV_P_ ev_io *w);
687	void ev_io_stop (EV_P_ ev_io *w);	746	EV_API_DECL void ev_io_stop (EV_P_ ev_io *w);
688		747
689	void ev_timer_start (EV_P_ ev_timer *w);	748	EV_API_DECL void ev_timer_start (EV_P_ ev_timer *w);
690	void ev_timer_stop (EV_P_ ev_timer *w);	749	EV_API_DECL void ev_timer_stop (EV_P_ ev_timer *w);
691	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	750	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
692	void ev_timer_again (EV_P_ ev_timer *w);	751	EV_API_DECL void ev_timer_again (EV_P_ ev_timer *w);
693	/* return remaining time */	752	/* return remaining time */
694	ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);	753	EV_API_DECL ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
695		754
696	#if EV_PERIODIC_ENABLE	755	#if EV_PERIODIC_ENABLE
697	void ev_periodic_start (EV_P_ ev_periodic *w);	756	EV_API_DECL void ev_periodic_start (EV_P_ ev_periodic *w);
698	void ev_periodic_stop (EV_P_ ev_periodic *w);	757	EV_API_DECL void ev_periodic_stop (EV_P_ ev_periodic *w);
699	void ev_periodic_again (EV_P_ ev_periodic *w);	758	EV_API_DECL void ev_periodic_again (EV_P_ ev_periodic *w);
700	#endif	759	#endif
701		760
702	/* only supported in the default loop */	761	/* only supported in the default loop */
703	#if EV_SIGNAL_ENABLE	762	#if EV_SIGNAL_ENABLE
704	void ev_signal_start (EV_P_ ev_signal *w);	763	EV_API_DECL void ev_signal_start (EV_P_ ev_signal *w);
705	void ev_signal_stop (EV_P_ ev_signal *w);	764	EV_API_DECL void ev_signal_stop (EV_P_ ev_signal *w);
706	#endif	765	#endif
707		766
708	/* only supported in the default loop */	767	/* only supported in the default loop */
709	# if EV_CHILD_ENABLE	768	# if EV_CHILD_ENABLE
710	void ev_child_start (EV_P_ ev_child *w);	769	EV_API_DECL void ev_child_start (EV_P_ ev_child *w);
711	void ev_child_stop (EV_P_ ev_child *w);	770	EV_API_DECL void ev_child_stop (EV_P_ ev_child *w);
712	# endif	771	# endif
713		772
714	# if EV_STAT_ENABLE	773	# if EV_STAT_ENABLE
715	void ev_stat_start (EV_P_ ev_stat *w);	774	EV_API_DECL void ev_stat_start (EV_P_ ev_stat *w);
716	void ev_stat_stop (EV_P_ ev_stat *w);	775	EV_API_DECL void ev_stat_stop (EV_P_ ev_stat *w);
717	void ev_stat_stat (EV_P_ ev_stat *w);	776	EV_API_DECL void ev_stat_stat (EV_P_ ev_stat *w);
718	# endif	777	# endif
719		778
720	# if EV_IDLE_ENABLE	779	# if EV_IDLE_ENABLE
721	void ev_idle_start (EV_P_ ev_idle *w);	780	EV_API_DECL void ev_idle_start (EV_P_ ev_idle *w);
722	void ev_idle_stop (EV_P_ ev_idle *w);	781	EV_API_DECL void ev_idle_stop (EV_P_ ev_idle *w);
723	# endif	782	# endif
724		783
725	#if EV_PREPARE_ENABLE	784	#if EV_PREPARE_ENABLE
726	void ev_prepare_start (EV_P_ ev_prepare *w);	785	EV_API_DECL void ev_prepare_start (EV_P_ ev_prepare *w);
727	void ev_prepare_stop (EV_P_ ev_prepare *w);	786	EV_API_DECL void ev_prepare_stop (EV_P_ ev_prepare *w);
728	#endif	787	#endif
729		788
730	#if EV_CHECK_ENABLE	789	#if EV_CHECK_ENABLE
731	void ev_check_start (EV_P_ ev_check *w);	790	EV_API_DECL void ev_check_start (EV_P_ ev_check *w);
732	void ev_check_stop (EV_P_ ev_check *w);	791	EV_API_DECL void ev_check_stop (EV_P_ ev_check *w);
733	#endif	792	#endif
734		793
735	# if EV_FORK_ENABLE	794	# if EV_FORK_ENABLE
736	void ev_fork_start (EV_P_ ev_fork *w);	795	EV_API_DECL void ev_fork_start (EV_P_ ev_fork *w);
737	void ev_fork_stop (EV_P_ ev_fork *w);	796	EV_API_DECL void ev_fork_stop (EV_P_ ev_fork *w);
		797	# endif
		798
		799	# if EV_CLEANUP_ENABLE
		800	EV_API_DECL void ev_cleanup_start (EV_P_ ev_cleanup *w);
		801	EV_API_DECL void ev_cleanup_stop (EV_P_ ev_cleanup *w);
738	# endif	802	# endif
739		803
740	# if EV_EMBED_ENABLE	804	# if EV_EMBED_ENABLE
741	/* only supported when loop to be embedded is in fact embeddable */	805	/* only supported when loop to be embedded is in fact embeddable */
742	void ev_embed_start (EV_P_ ev_embed *w);	806	EV_API_DECL void ev_embed_start (EV_P_ ev_embed *w);
743	void ev_embed_stop (EV_P_ ev_embed *w);	807	EV_API_DECL void ev_embed_stop (EV_P_ ev_embed *w);
744	void ev_embed_sweep (EV_P_ ev_embed *w);	808	EV_API_DECL void ev_embed_sweep (EV_P_ ev_embed *w);
745	# endif	809	# endif
746		810
747	# if EV_ASYNC_ENABLE	811	# if EV_ASYNC_ENABLE
748	void ev_async_start (EV_P_ ev_async *w);	812	EV_API_DECL void ev_async_start (EV_P_ ev_async *w);
749	void ev_async_stop (EV_P_ ev_async *w);	813	EV_API_DECL void ev_async_stop (EV_P_ ev_async *w);
750	void ev_async_send (EV_P_ ev_async *w);	814	EV_API_DECL void ev_async_send (EV_P_ ev_async *w);
751	# endif
752
753	#endif	815	# endif
754		816
755	#ifdef __cplusplus	817	#if EV_COMPAT3
756	}	818	#define EVLOOP_NONBLOCK EVRUN_NOWAIT
		819	#define EVLOOP_ONESHOT EVRUN_ONCE
		820	#define EVUNLOOP_CANCEL EVBREAK_CANCEL
		821	#define EVUNLOOP_ONE EVBREAK_ONE
		822	#define EVUNLOOP_ALL EVBREAK_ALL
		823	#if EV_PROTOTYPES
		824	EV_INLINE void ev_loop (EV_P_ int flags) { ev_run (EV_A_ flags); }
		825	EV_INLINE void ev_unloop (EV_P_ int how ) { ev_break (EV_A_ how ); }
		826	EV_INLINE void ev_default_destroy (void) { ev_loop_destroy (EV_DEFAULT); }
		827	EV_INLINE void ev_default_fork (void) { ev_loop_fork (EV_DEFAULT); }
		828	#if EV_FEATURE_API
		829	EV_INLINE unsigned int ev_loop_count (EV_P) { return ev_iteration (EV_A); }
		830	EV_INLINE unsigned int ev_loop_depth (EV_P) { return ev_depth (EV_A); }
		831	EV_INLINE void ev_loop_verify (EV_P) { ev_verify (EV_A); }
		832	#endif
757	#endif	833	#endif
758		834	#else
		835	typedef struct ev_loop ev_loop;
759	#endif	836	#endif
760		837
		838	#endif
		839
		840	EV_CPP(})
		841
		842	#endif
		843

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Comparing libev/ev.h (file contents): Revision 1.134 by root, Tue Mar 16 00:20:17 2010 UTC vs. Revision 1.166 by root, Mon Apr 2 23:46:11 2012 UTC

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Comparing libev/ev.h (file contents):
Revision 1.134 by root, Tue Mar 16 00:20:17 2010 UTC vs.
Revision 1.166 by root, Mon Apr 2 23:46:11 2012 UTC