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

Comparing libev/ev.h (file contents):
Revision 1.77 by root, Mon Dec 3 13:41:25 2007 UTC vs.
Revision 1.133 by root, Wed Mar 10 09:23:07 2010 UTC

…		…
1	/*	1	/*
		2	* libev native API header
		3	*
2	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de>
3	* All rights reserved.	5	* All rights reserved.
4	*	6	*
5	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without modifica-
6	* modification, are permitted provided that the following conditions are	8	* tion, are permitted provided that the following conditions are met:
7	* met:	9	*
		10	* 1. Redistributions of source code must retain the above copyright notice,
		11	* this list of conditions and the following disclaimer.
		12	*
		13	* 2. Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
		18	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
		19	* CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
		20	* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
		21	* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
		22	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
		23	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
		24	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
		25	* ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
		26	* OF THE POSSIBILITY OF SUCH DAMAGE.
8	*	27	*
9	* * Redistributions of source code must retain the above copyright	28	* Alternatively, the contents of this file may be used under the terms of
10	* notice, this list of conditions and the following disclaimer.	29	* the GNU General Public License ("GPL") version 2 or any later version,
11	*	30	* in which case the provisions of the GPL are applicable instead of
12	* * Redistributions in binary form must reproduce the above	31	* the above. If you wish to allow the use of your version of this file
13	* copyright notice, this list of conditions and the following	32	* only under the terms of the GPL and not to allow others to use your
14	* disclaimer in the documentation and/or other materials provided	33	* version of this file under the BSD license, indicate your decision
15	* with the distribution.	34	* by deleting the provisions above and replace them with the notice
16	*	35	* and other provisions required by the GPL. If you do not delete the
17	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS	36	* provisions above, a recipient may use your version of this file under
18	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT	37	* either the BSD or the GPL.
19	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	38	*/
29		39
30	#ifndef EV_H__	40	#ifndef EV_H_
31	#define EV_H__	41	#define EV_H_
32		42
33	#ifdef __cplusplus	43	#ifdef __cplusplus
34	extern "C" {	44	extern "C" {
35	#endif	45	#endif
36		46
54		64
55	#ifndef EV_STAT_ENABLE	65	#ifndef EV_STAT_ENABLE
56	# define EV_STAT_ENABLE 1	66	# define EV_STAT_ENABLE 1
57	#endif	67	#endif
58		68
		69	#ifndef EV_PREPARE_ENABLE
		70	# define EV_PREPARE_ENABLE 1
		71	#endif
		72
		73	#ifndef EV_CHECK_ENABLE
		74	# define EV_CHECK_ENABLE 1
		75	#endif
		76
		77	#ifndef EV_IDLE_ENABLE
		78	# define EV_IDLE_ENABLE 1
		79	#endif
		80
59	#ifndef EV_FORK_ENABLE	81	#ifndef EV_FORK_ENABLE
60	# define EV_FORK_ENABLE 1	82	# define EV_FORK_ENABLE 1
61	#endif	83	#endif
62		84
		85	#ifndef EV_SIGNAL_ENABLE
		86	# define EV_SIGNAL_ENABLE 1
		87	#endif
		88
		89	#ifndef EV_CHILD_ENABLE
		90	# ifdef _WIN32
		91	# define EV_CHILD_ENABLE 0
		92	# else
		93	# define EV_CHILD_ENABLE 1
		94	#endif
		95	#endif
		96
		97	#ifndef EV_ASYNC_ENABLE
		98	# define EV_ASYNC_ENABLE 1
		99	#endif
		100
63	#ifndef EV_EMBED_ENABLE	101	#ifndef EV_EMBED_ENABLE
64	# define EV_EMBED_ENABLE 1	102	# define EV_EMBED_ENABLE 1
65	#endif	103	#endif
66		104
		105	#ifndef EV_WALK_ENABLE
		106	# define EV_WALK_ENABLE 0 /* not yet */
		107	#endif
		108
		109	#ifndef EV_ATOMIC_T
		110	# include <signal.h>
		111	# define EV_ATOMIC_T sig_atomic_t volatile
		112	#endif
		113
67	/*****************************************************************************/	114	/*****************************************************************************/
68		115
		116	#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
		117	# undef EV_SIGNAL_ENABLE
		118	# define EV_SIGNAL_ENABLE 1
		119	#endif
		120
69	#if EV_STAT_ENABLE	121	#if EV_STAT_ENABLE
		122	# ifdef _WIN32
		123	# include <time.h>
		124	# include <sys/types.h>
		125	# endif
70	# include <sys/stat.h>	126	# include <sys/stat.h>
71	#endif	127	#endif
72		128
73	/* support multiple event loops? */	129	/* support multiple event loops? */
74	#if EV_MULTIPLICITY	130	#if EV_MULTIPLICITY
75	struct ev_loop;	131	struct ev_loop;
76	# define EV_P struct ev_loop *loop	132	# define EV_P struct ev_loop *loop
77	# define EV_P_ EV_P,	133	# define EV_P_ EV_P,
78	# define EV_A loop	134	# define EV_A loop
79	# define EV_A_ EV_A,	135	# define EV_A_ EV_A,
		136	# define EV_DEFAULT_UC ev_default_loop_uc ()
		137	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
80	# define EV_DEFAULT ev_default_loop (0)	138	# define EV_DEFAULT ev_default_loop (0)
81	# define EV_DEFAULT_ EV_DEFAULT,	139	# define EV_DEFAULT_ EV_DEFAULT,
82	#else	140	#else
83	# define EV_P void	141	# define EV_P void
84	# define EV_P_	142	# define EV_P_
85	# define EV_A	143	# define EV_A
86	# define EV_A_	144	# define EV_A_
87	# define EV_DEFAULT	145	# define EV_DEFAULT
88	# define EV_DEFAULT_	146	# define EV_DEFAULT_
89		147	# define EV_DEFAULT_UC
		148	# define EV_DEFAULT_UC_
90	# undef EV_EMBED_ENABLE	149	# undef EV_EMBED_ENABLE
91	#endif	150	#endif
92		151
		152	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		153	# define EV_INLINE static inline
		154	#else
		155	# define EV_INLINE static
		156	#endif
		157
		158	/*****************************************************************************/
		159
93	/* eventmask, revents, events... */	160	/* eventmask, revents, events... */
94	#define EV_UNDEF -1L /* guaranteed to be invalid */	161	#define EV_UNDEF -1 /* guaranteed to be invalid */
95	#define EV_NONE 0x00L /* no events */	162	#define EV_NONE 0x00 /* no events */
96	#define EV_READ 0x01L /* ev_io detected read will not block */	163	#define EV_READ 0x01 /* ev_io detected read will not block */
97	#define EV_WRITE 0x02L /* ev_io detected write will not block */	164	#define EV_WRITE 0x02 /* ev_io detected write will not block */
		165	#define EV__IOFDSET 0x80 /* internal use only */
		166	#define EV_IO EV_READ /* alias for type-detection */
98	#define EV_TIMEOUT 0x00000100L /* timer timed out */	167	#define EV_TIMEOUT 0x00000100 /* timer timed out */
		168	#define EV_TIMER EV_TIMEOUT /* alias for type-detection */
99	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	169	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
100	#define EV_SIGNAL 0x00000400L /* signal was received */	170	#define EV_SIGNAL 0x00000400 /* signal was received */
101	#define EV_CHILD 0x00000800L /* child/pid had status change */	171	#define EV_CHILD 0x00000800 /* child/pid had status change */
102	#define EV_STAT 0x00001000L /* stat data changed */	172	#define EV_STAT 0x00001000 /* stat data changed */
103	#define EV_IDLE 0x00002000L /* event loop is idling */	173	#define EV_IDLE 0x00002000 /* event loop is idling */
104	#define EV_PREPARE 0x00004000L /* event loop about to poll */	174	#define EV_PREPARE 0x00004000 /* event loop about to poll */
105	#define EV_CHECK 0x00008000L /* event loop finished poll */	175	#define EV_CHECK 0x00008000 /* event loop finished poll */
106	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */	176	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
107	#define EV_FORK 0x00020000L /* event loop resumed in child */	177	#define EV_FORK 0x00020000 /* event loop resumed in child */
		178	#define EV_ASYNC 0x00040000 /* async intra-loop signal */
		179	#define EV_CUSTOM 0x01000000 /* for use by user code */
108	#define EV_ERROR 0x80000000L /* sent when an error occurs */	180	#define EV_ERROR 0x80000000 /* sent when an error occurs */
109		181
110	/* can be used to add custom fields to all watchers, while losing binary compatibility */	182	/* can be used to add custom fields to all watchers, while losing binary compatibility */
111	#ifndef EV_COMMON	183	#ifndef EV_COMMON
112	# define EV_COMMON void *data;	184	# define EV_COMMON void *data;
113	#endif	185	#endif
114	#ifndef EV_PROTOTYPES	186	#ifndef EV_PROTOTYPES
115	# define EV_PROTOTYPES 1	187	# define EV_PROTOTYPES 1
116	#endif	188	#endif
117		189
118	#define EV_VERSION_MAJOR 1	190	#define EV_VERSION_MAJOR 3
119	#define EV_VERSION_MINOR 1	191	#define EV_VERSION_MINOR 9
120		192
121	#ifndef EV_CB_DECLARE	193	#ifndef EV_CB_DECLARE
122	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	194	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
123	#endif	195	#endif
124	#ifndef EV_CB_INVOKE	196	#ifndef EV_CB_INVOKE
125	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	197	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
126	#endif	198	#endif
127		199
128	/*	200	/*
129	* struct member types:	201	* struct member types:
130	* private: you can look at them, but not change them, and they might not mean anything to you.	202	* private: you may look at them, but not change them,
		203	* and they might not mean anything to you.
131	* ro: can be read anytime, but only changed when the watcher isn't active	204	* ro: can be read anytime, but only changed when the watcher isn't active.
132	* rw: can be read and modified anytime, even when the watcher is active	205	* rw: can be read and modified anytime, even when the watcher is active.
		206	*
		207	* some internal details that might be helpful for debugging:
		208	*
		209	* active is either 0, which means the watcher is not active,
		210	* or the array index of the watcher (periodics, timers)
		211	* or the array index + 1 (most other watchers)
		212	* or simply 1 for watchers that aren't in some array.
		213	* pending is either 0, in which case the watcher isn't,
		214	* or the array index + 1 in the pendings array.
133	*/	215	*/
		216
		217	#if EV_MINPRI == EV_MAXPRI
		218	# define EV_DECL_PRIORITY
		219	#else
		220	# define EV_DECL_PRIORITY int priority;
		221	#endif
134		222
135	/* shared by all watchers */	223	/* shared by all watchers */
136	#define EV_WATCHER(type) \	224	#define EV_WATCHER(type) \
137	int active; /* private */ \	225	int active; /* private */ \
138	int pending; /* private */ \	226	int pending; /* private */ \
139	int priority; /* private */ \	227	EV_DECL_PRIORITY /* private */ \
140	EV_COMMON /* rw */ \	228	EV_COMMON /* rw */ \
141	EV_CB_DECLARE (type) /* private */	229	EV_CB_DECLARE (type) /* private */
142		230
143	#define EV_WATCHER_LIST(type) \	231	#define EV_WATCHER_LIST(type) \
144	EV_WATCHER (type) \	232	EV_WATCHER (type) \
…		…
189	/* revent EV_PERIODIC */	277	/* revent EV_PERIODIC */
190	typedef struct ev_periodic	278	typedef struct ev_periodic
191	{	279	{
192	EV_WATCHER_TIME (ev_periodic)	280	EV_WATCHER_TIME (ev_periodic)
193		281
		282	ev_tstamp offset; /* rw */
194	ev_tstamp interval; /* rw */	283	ev_tstamp interval; /* rw */
195	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	284	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
196	} ev_periodic;	285	} ev_periodic;
197		286
198	/* invoked when the given signal has been received */	287	/* invoked when the given signal has been received */
…		…
209	/* does not support priorities */	298	/* does not support priorities */
210	typedef struct ev_child	299	typedef struct ev_child
211	{	300	{
212	EV_WATCHER_LIST (ev_child)	301	EV_WATCHER_LIST (ev_child)
213		302
		303	int flags; /* private */
214	int pid; /* ro */	304	int pid; /* ro */
215	int rpid; /* rw, holds the received pid */	305	int rpid; /* rw, holds the received pid */
216	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	306	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
217	} ev_child;	307	} ev_child;
218		308
…		…
238		328
239	int wd; /* wd for inotify, fd for kqueue */	329	int wd; /* wd for inotify, fd for kqueue */
240	} ev_stat;	330	} ev_stat;
241	#endif	331	#endif
242		332
		333	#if EV_IDLE_ENABLE
243	/* invoked when the nothing else needs to be done, keeps the process from blocking */	334	/* invoked when the nothing else needs to be done, keeps the process from blocking */
244	/* revent EV_IDLE */	335	/* revent EV_IDLE */
245	typedef struct ev_idle	336	typedef struct ev_idle
246	{	337	{
247	EV_WATCHER (ev_idle)	338	EV_WATCHER (ev_idle)
248	} ev_idle;	339	} ev_idle;
		340	#endif
249		341
250	/* invoked for each run of the mainloop, just before the blocking call */	342	/* invoked for each run of the mainloop, just before the blocking call */
251	/* you can still change events in any way you like */	343	/* you can still change events in any way you like */
252	/* revent EV_PREPARE */	344	/* revent EV_PREPARE */
253	typedef struct ev_prepare	345	typedef struct ev_prepare
…		…
275	/* the callback gets invoked when the event loop has handled events, and can be 0 */	367	/* the callback gets invoked when the event loop has handled events, and can be 0 */
276	typedef struct ev_embed	368	typedef struct ev_embed
277	{	369	{
278	EV_WATCHER (ev_embed)	370	EV_WATCHER (ev_embed)
279		371
280	ev_io io; /* private */
281	struct ev_loop loop; / ro */	372	struct ev_loop other; / ro */
		373	ev_io io; /* private */
		374	ev_prepare prepare; /* private */
		375	ev_check check; /* unused */
		376	ev_timer timer; /* unused */
		377	ev_periodic periodic; /* unused */
		378	ev_idle idle; /* unused */
		379	ev_fork fork; /* private */
282	} ev_embed;	380	} ev_embed;
		381	#endif
		382
		383	#if EV_ASYNC_ENABLE
		384	/* invoked when somebody calls ev_async_send on the watcher */
		385	/* revent EV_ASYNC */
		386	typedef struct ev_async
		387	{
		388	EV_WATCHER (ev_async)
		389
		390	EV_ATOMIC_T sent; /* private */
		391	} ev_async;
		392
		393	# define ev_async_pending(w) (+(w)->sent)
283	#endif	394	#endif
284		395
285	/* the presence of this union forces similar struct layout */	396	/* the presence of this union forces similar struct layout */
286	union ev_any_watcher	397	union ev_any_watcher
287	{	398	{
…		…
294	struct ev_signal signal;	405	struct ev_signal signal;
295	struct ev_child child;	406	struct ev_child child;
296	#if EV_STAT_ENABLE	407	#if EV_STAT_ENABLE
297	struct ev_stat stat;	408	struct ev_stat stat;
298	#endif	409	#endif
		410	#if EV_IDLE_ENABLE
299	struct ev_idle idle;	411	struct ev_idle idle;
		412	#endif
300	struct ev_prepare prepare;	413	struct ev_prepare prepare;
301	struct ev_check check;	414	struct ev_check check;
302	#if EV_FORK_ENABLE	415	#if EV_FORK_ENABLE
303	struct ev_fork fork;	416	struct ev_fork fork;
304	#endif	417	#endif
305	#if EV_EMBED_ENABLE	418	#if EV_EMBED_ENABLE
306	struct ev_embed embed;	419	struct ev_embed embed;
307	#endif	420	#endif
		421	#if EV_ASYNC_ENABLE
		422	struct ev_async async;
		423	#endif
308	};	424	};
309		425
310	/* bits for ev_default_loop and ev_loop_new */	426	/* bits for ev_default_loop and ev_loop_new */
311	/* the default */	427	/* the default */
312	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	428	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
313	/* flag bits */	429	/* flag bits */
314	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	430	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
315	#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */	431	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
		432	/* debugging/feature disable */
		433	#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */
		434	#define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */
		435	#define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */
316	/* method bits to be ored together */	436	/* method bits to be ored together */
317	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	437	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
318	#define EVBACKEND_POLL 0x00000002UL /* !win */	438	#define EVBACKEND_POLL 0x00000002U /* !win */
319	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	439	#define EVBACKEND_EPOLL 0x00000004U /* linux */
320	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	440	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
321	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	441	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
322	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	442	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
		443	#define EVBACKEND_ALL 0x0000003FU
323		444
324	#if EV_PROTOTYPES	445	#if EV_PROTOTYPES
325	int ev_version_major (void);	446	int ev_version_major (void);
326	int ev_version_minor (void);	447	int ev_version_minor (void);
327		448
328	unsigned int ev_supported_backends (void);	449	unsigned int ev_supported_backends (void);
329	unsigned int ev_recommended_backends (void);	450	unsigned int ev_recommended_backends (void);
330	unsigned int ev_embeddable_backends (void);	451	unsigned int ev_embeddable_backends (void);
331		452
332	ev_tstamp ev_time (void);	453	ev_tstamp ev_time (void);
		454	void ev_sleep (ev_tstamp delay); /* sleep for a while */
333		455
334	/* Sets the allocation function to use, works like realloc.	456	/* Sets the allocation function to use, works like realloc.
335	* It is used to allocate and free memory.	457	* It is used to allocate and free memory.
336	* If it returns zero when memory needs to be allocated, the library might abort	458	* If it returns zero when memory needs to be allocated, the library might abort
337	* or take some potentially destructive action.	459	* or take some potentially destructive action.
…		…
343	* retryable syscall error	465	* retryable syscall error
344	* (such as failed select, poll, epoll_wait)	466	* (such as failed select, poll, epoll_wait)
345	*/	467	*/
346	void ev_set_syserr_cb (void (cb)(const char msg));	468	void ev_set_syserr_cb (void (cb)(const char msg));
347		469
348	# if EV_MULTIPLICITY	470	#if EV_MULTIPLICITY
		471	EV_INLINE struct ev_loop *
		472	ev_default_loop_uc (void)
		473	{
		474	extern struct ev_loop *ev_default_loop_ptr;
		475
		476	return ev_default_loop_ptr;
		477	}
		478
349	/* the default loop is the only one that handles signals and child watchers */	479	/* the default loop is the only one that handles signals and child watchers */
350	/* you can call this as often as you like */	480	/* you can call this as often as you like */
351	static struct ev_loop *	481	EV_INLINE struct ev_loop *
352	ev_default_loop (unsigned int flags)	482	ev_default_loop (unsigned int flags)
353	{	483	{
354	extern struct ev_loop *ev_default_loop_ptr;	484	struct ev_loop *loop = ev_default_loop_uc ();
		485
		486	if (!loop)
		487	{
355	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	488	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
356		489
357	if (!ev_default_loop_ptr)
358	ev_default_loop_init (flags);	490	loop = ev_default_loop_init (flags);
		491	}
359		492
360	return ev_default_loop_ptr;	493	return loop;
361	}	494	}
362		495
363	/* create and destroy alternative loops that don't handle signals */	496	/* create and destroy alternative loops that don't handle signals */
364	struct ev_loop *ev_loop_new (unsigned int flags);	497	struct ev_loop *ev_loop_new (unsigned int flags);
365	void ev_loop_destroy (EV_P);	498	void ev_loop_destroy (EV_P);
366	void ev_loop_fork (EV_P);	499	void ev_loop_fork (EV_P);
367		500
368	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	501	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
369		502
370	# else	503	#else
371		504
372	int ev_default_loop (unsigned int flags); /* returns true when successful */	505	int ev_default_loop (unsigned int flags); /* returns true when successful */
373		506
374	static ev_tstamp	507	EV_INLINE ev_tstamp
375	ev_now (void)	508	ev_now (void)
376	{	509	{
377	extern ev_tstamp ev_rt_now;	510	extern ev_tstamp ev_rt_now;
378		511
379	return ev_rt_now;	512	return ev_rt_now;
380	}	513	}
		514	#endif /* multiplicity */
		515
		516	EV_INLINE int
		517	ev_is_default_loop (EV_P)
		518	{
		519	#if EV_MULTIPLICITY
		520	extern struct ev_loop *ev_default_loop_ptr;
		521
		522	return !!(EV_A == ev_default_loop_ptr);
		523	#else
		524	return 1;
381	# endif	525	#endif
		526	}
382		527
383	void ev_default_destroy (void); /* destroy the default loop */	528	void ev_default_destroy (void); /* destroy the default loop */
384	/* this needs to be called after fork, to duplicate the default loop */	529	/* this needs to be called after fork, to duplicate the default loop */
385	/* if you create alternative loops you have to call ev_loop_fork on them */	530	/* if you create alternative loops you have to call ev_loop_fork on them */
386	/* you can call it in either the parent or the child */	531	/* you can call it in either the parent or the child */
387	/* you can actually call it at any time, anywhere :) */	532	/* you can actually call it at any time, anywhere :) */
388	void ev_default_fork (void);	533	void ev_default_fork (void);
389		534
390	unsigned int ev_backend (EV_P);	535	unsigned int ev_backend (EV_P); /* backend in use by loop */
391	unsigned int ev_loop_count (EV_P);	536
		537	void ev_now_update (EV_P); /* update event loop time */
		538
		539	#if EV_WALK_ENABLE
		540	/* walk (almost) all watchers in the loop of a given type, invoking the */
		541	/* callback on every such watcher. The callback might stop the watcher, */
		542	/* but do nothing else with the loop */
		543	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
392	#endif	544	#endif
		545
		546	#endif /* prototypes */
393		547
394	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	548	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
395	#define EVLOOP_ONESHOT 2 /* block once only */	549	#define EVLOOP_ONESHOT 2 /* block once only */
396	#define EVUNLOOP_CANCEL 0 /* undo unloop */	550	#define EVUNLOOP_CANCEL 0 /* undo unloop */
397	#define EVUNLOOP_ONE 1 /* unloop once */	551	#define EVUNLOOP_ONE 1 /* unloop once */
…		…
401	void ev_loop (EV_P_ int flags);	555	void ev_loop (EV_P_ int flags);
402	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 */	556	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 */
403		557
404	/*	558	/*
405	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	559	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
406	* keeps one reference. if you have a long-runing watcher you never unregister that	560	* keeps one reference. if you have a long-running watcher you never unregister that
407	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	561	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
408	*/	562	*/
409	void ev_ref (EV_P);	563	void ev_ref (EV_P);
410	void ev_unref (EV_P);	564	void ev_unref (EV_P);
411		565
		566	/*
412	/* convinience function, wait for a single event, without registering an event watcher */	567	* convenience function, wait for a single event, without registering an event watcher
413	/* if timeout is < 0, do wait indefinitely */	568	* if timeout is < 0, do wait indefinitely
		569	*/
414	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	570	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
		571
		572	# if EV_MINIMAL < 2
		573	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
		574	unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
		575	void ev_loop_verify (EV_P); /* abort if loop data corrupted */
		576
		577	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		578	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		579
		580	/* advanced stuff for threading etc. support, see docs */
		581	void ev_set_userdata (EV_P_ void *data);
		582	void *ev_userdata (EV_P);
		583	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
		584	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));
		585
		586	unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
		587	void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		588
		589	/*
		590	* stop/start the timer handling.
		591	*/
		592	void ev_suspend (EV_P);
		593	void ev_resume (EV_P);
		594	#endif
		595
415	#endif	596	#endif
416		597
417	/* these may evaluate ev multiple times, and the other arguments at most once */	598	/* these may evaluate ev multiple times, and the other arguments at most once */
418	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	599	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
419	#define ev_init(ev,cb_) do { \	600	#define ev_init(ev,cb_) do { \
420	((ev_watcher )(void )(ev))->active = \	601	((ev_watcher )(void )(ev))->active = \
421	((ev_watcher )(void )(ev))->pending = \	602	((ev_watcher )(void )(ev))->pending = 0; \
422	((ev_watcher )(void )(ev))->priority = 0; \	603	ev_set_priority ((ev), 0); \
423	ev_set_cb ((ev), cb_); \	604	ev_set_cb ((ev), cb_); \
424	} while (0)	605	} while (0)
425		606
426	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	607	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
427	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	608	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
428	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	609	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
429	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	610	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
430	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	611	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
431	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)	612	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
432	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	613	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
433	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	614	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
434	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	615	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
435	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	616	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
436	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	617	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		618	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
437		619
438	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	620	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
439	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	621	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
440	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	622	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
441	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	623	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
442	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	624	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
443	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	625	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
444	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	626	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
445	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	627	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
446	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	628	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
447	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	629	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
448	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	630	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		631	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
449		632
450	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	633	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
451	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	634	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
452		635
453	#define ev_priority(ev) ((ev_watcher )(void )(ev))->priority /* rw */
454	#define ev_cb(ev) (ev)->cb /* rw */	636	#define ev_cb(ev) (ev)->cb /* rw */
		637
		638	#if EV_MINPRI == EV_MAXPRI
		639	# define ev_priority(ev) ((ev), EV_MINPRI)
455	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	640	# define ev_set_priority(ev,pri) ((ev), (pri))
		641	#else
		642	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
		643	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		644	#endif
		645
		646	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
456		647
457	#ifndef ev_set_cb	648	#ifndef ev_set_cb
458	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	649	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
459	#endif	650	#endif
460		651
461	/* stopping (enabling, adding) a watcher does nothing if it is already running */	652	/* stopping (enabling, adding) a watcher does nothing if it is already running */
462	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	653	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
463	#if EV_PROTOTYPES	654	#if EV_PROTOTYPES
464		655
465	/* feeds an event into a watcher as if the event actually occured */	656	/* feeds an event into a watcher as if the event actually occured */
466	/* accepts any ev_watcher type */	657	/* accepts any ev_watcher type */
467	void ev_feed_event (EV_P_ void *w, int revents);	658	void ev_feed_event (EV_P_ void *w, int revents);
468	void ev_feed_fd_event (EV_P_ int fd, int revents);	659	void ev_feed_fd_event (EV_P_ int fd, int revents);
		660	#if EV_SIGNAL_ENABLE
469	void ev_feed_signal_event (EV_P_ int signum);	661	void ev_feed_signal_event (EV_P_ int signum);
		662	#endif
		663	void ev_invoke (EV_P_ void *w, int revents);
		664	int ev_clear_pending (EV_P_ void *w);
470		665
471	void ev_io_start (EV_P_ ev_io *w);	666	void ev_io_start (EV_P_ ev_io *w);
472	void ev_io_stop (EV_P_ ev_io *w);	667	void ev_io_stop (EV_P_ ev_io *w);
473		668
474	void ev_timer_start (EV_P_ ev_timer *w);	669	void ev_timer_start (EV_P_ ev_timer *w);
475	void ev_timer_stop (EV_P_ ev_timer *w);	670	void ev_timer_stop (EV_P_ ev_timer *w);
476	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	671	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
477	void ev_timer_again (EV_P_ ev_timer *w);	672	void ev_timer_again (EV_P_ ev_timer *w);
		673	/* return remaining time */
		674	ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
478		675
479	#if EV_PERIODIC_ENABLE	676	#if EV_PERIODIC_ENABLE
480	void ev_periodic_start (EV_P_ ev_periodic *w);	677	void ev_periodic_start (EV_P_ ev_periodic *w);
481	void ev_periodic_stop (EV_P_ ev_periodic *w);	678	void ev_periodic_stop (EV_P_ ev_periodic *w);
482	void ev_periodic_again (EV_P_ ev_periodic *w);	679	void ev_periodic_again (EV_P_ ev_periodic *w);
483	#endif	680	#endif
484		681
485	/* only supported in the default loop */	682	/* only supported in the default loop */
		683	#if EV_SIGNAL_ENABLE
486	void ev_signal_start (EV_P_ ev_signal *w);	684	void ev_signal_start (EV_P_ ev_signal *w);
487	void ev_signal_stop (EV_P_ ev_signal *w);	685	void ev_signal_stop (EV_P_ ev_signal *w);
		686	#endif
488		687
489	/* only supported in the default loop */	688	/* only supported in the default loop */
		689	# if EV_CHILD_ENABLE
490	void ev_child_start (EV_P_ ev_child *w);	690	void ev_child_start (EV_P_ ev_child *w);
491	void ev_child_stop (EV_P_ ev_child *w);	691	void ev_child_stop (EV_P_ ev_child *w);
		692	# endif
492		693
493	# if EV_STAT_ENABLE	694	# if EV_STAT_ENABLE
494	void ev_stat_start (EV_P_ ev_stat *w);	695	void ev_stat_start (EV_P_ ev_stat *w);
495	void ev_stat_stop (EV_P_ ev_stat *w);	696	void ev_stat_stop (EV_P_ ev_stat *w);
496	void ev_stat_stat (EV_P_ ev_stat *w);	697	void ev_stat_stat (EV_P_ ev_stat *w);
497	# endif	698	# endif
498		699
		700	# if EV_IDLE_ENABLE
499	void ev_idle_start (EV_P_ ev_idle *w);	701	void ev_idle_start (EV_P_ ev_idle *w);
500	void ev_idle_stop (EV_P_ ev_idle *w);	702	void ev_idle_stop (EV_P_ ev_idle *w);
		703	# endif
501		704
		705	#if EV_PREPARE_ENABLE
502	void ev_prepare_start (EV_P_ ev_prepare *w);	706	void ev_prepare_start (EV_P_ ev_prepare *w);
503	void ev_prepare_stop (EV_P_ ev_prepare *w);	707	void ev_prepare_stop (EV_P_ ev_prepare *w);
		708	#endif
504		709
		710	#if EV_CHECK_ENABLE
505	void ev_check_start (EV_P_ ev_check *w);	711	void ev_check_start (EV_P_ ev_check *w);
506	void ev_check_stop (EV_P_ ev_check *w);	712	void ev_check_stop (EV_P_ ev_check *w);
		713	#endif
507		714
508	# if EV_FORK_ENABLE	715	# if EV_FORK_ENABLE
509	void ev_fork_start (EV_P_ ev_fork *w);	716	void ev_fork_start (EV_P_ ev_fork *w);
510	void ev_fork_stop (EV_P_ ev_fork *w);	717	void ev_fork_stop (EV_P_ ev_fork *w);
511	# endif	718	# endif
…		…
515	void ev_embed_start (EV_P_ ev_embed *w);	722	void ev_embed_start (EV_P_ ev_embed *w);
516	void ev_embed_stop (EV_P_ ev_embed *w);	723	void ev_embed_stop (EV_P_ ev_embed *w);
517	void ev_embed_sweep (EV_P_ ev_embed *w);	724	void ev_embed_sweep (EV_P_ ev_embed *w);
518	# endif	725	# endif
519		726
		727	# if EV_ASYNC_ENABLE
		728	void ev_async_start (EV_P_ ev_async *w);
		729	void ev_async_stop (EV_P_ ev_async *w);
		730	void ev_async_send (EV_P_ ev_async *w);
		731	# endif
		732
520	#endif	733	#endif
521		734
522	#ifdef __cplusplus	735	#ifdef __cplusplus
523	}	736	}
524	#endif	737	#endif

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Comparing libev/ev.h (file contents): Revision 1.77 by root, Mon Dec 3 13:41:25 2007 UTC vs. Revision 1.133 by root, Wed Mar 10 09:23:07 2010 UTC

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Comparing libev/ev.h (file contents):
Revision 1.77 by root, Mon Dec 3 13:41:25 2007 UTC vs.
Revision 1.133 by root, Wed Mar 10 09:23:07 2010 UTC