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

Comparing libev/ev.h (file contents):
Revision 1.73 by root, Tue Nov 27 19:41:52 2007 UTC vs.
Revision 1.128 by root, Tue Oct 20 00:50:31 2009 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_IDLE_ENABLE
		70	# define EV_IDLE_ENABLE 1
		71	#endif
		72
59	#ifndef EV_FORK_ENABLE	73	#ifndef EV_FORK_ENABLE
60	# define EV_FORK_ENABLE 1	74	# define EV_FORK_ENABLE 1
61	#endif	75	#endif
62		76
63	#ifndef EV_EMBED_ENABLE	77	#ifndef EV_EMBED_ENABLE
64	# define EV_EMBED_ENABLE 1	78	# define EV_EMBED_ENABLE 1
65	#endif	79	#endif
66		80
		81	#ifndef EV_ASYNC_ENABLE
		82	# define EV_ASYNC_ENABLE 1
		83	#endif
		84
		85	#ifndef EV_WALK_ENABLE
		86	# define EV_WALK_ENABLE 0 /* not yet */
		87	#endif
		88
		89	#ifndef EV_ATOMIC_T
		90	# include <signal.h>
		91	# define EV_ATOMIC_T sig_atomic_t volatile
		92	#endif
		93
67	/*****************************************************************************/	94	/*****************************************************************************/
68		95
69	#include <stddef.h> /* for size_t */
70
71	#if EV_STAT_ENABLE	96	#if EV_STAT_ENABLE
		97	# ifdef _WIN32
		98	# include <time.h>
		99	# include <sys/types.h>
		100	# endif
72	# include <sys/stat.h>	101	# include <sys/stat.h>
73	#endif	102	#endif
74		103
75	/* support multiple event loops? */	104	/* support multiple event loops? */
76	#if EV_MULTIPLICITY	105	#if EV_MULTIPLICITY
77	struct ev_loop;	106	struct ev_loop;
78	# define EV_P struct ev_loop *loop	107	# define EV_P struct ev_loop *loop
79	# define EV_P_ EV_P,	108	# define EV_P_ EV_P,
80	# define EV_A loop	109	# define EV_A loop
81	# define EV_A_ EV_A,	110	# define EV_A_ EV_A,
		111	# define EV_DEFAULT_UC ev_default_loop_uc ()
		112	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
82	# define EV_DEFAULT ev_default_loop (0)	113	# define EV_DEFAULT ev_default_loop (0)
83	# define EV_DEFAULT_ EV_DEFAULT,	114	# define EV_DEFAULT_ EV_DEFAULT,
84	#else	115	#else
85	# define EV_P void	116	# define EV_P void
86	# define EV_P_	117	# define EV_P_
87	# define EV_A	118	# define EV_A
88	# define EV_A_	119	# define EV_A_
89	# define EV_DEFAULT	120	# define EV_DEFAULT
90	# define EV_DEFAULT_	121	# define EV_DEFAULT_
91		122	# define EV_DEFAULT_UC
		123	# define EV_DEFAULT_UC_
92	# undef EV_EMBED_ENABLE	124	# undef EV_EMBED_ENABLE
93	#endif	125	#endif
94		126
		127	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		128	# define EV_INLINE static inline
		129	#else
		130	# define EV_INLINE static
		131	#endif
		132
		133	/*****************************************************************************/
		134
95	/* eventmask, revents, events... */	135	/* eventmask, revents, events... */
96	#define EV_UNDEF -1L /* guaranteed to be invalid */	136	#define EV_UNDEF -1 /* guaranteed to be invalid */
97	#define EV_NONE 0x00L /* no events */	137	#define EV_NONE 0x00 /* no events */
98	#define EV_READ 0x01L /* ev_io detected read will not block */	138	#define EV_READ 0x01 /* ev_io detected read will not block */
99	#define EV_WRITE 0x02L /* ev_io detected write will not block */	139	#define EV_WRITE 0x02 /* ev_io detected write will not block */
		140	#define EV__IOFDSET 0x80 /* internal use only */
		141	#define EV_IO EV_READ /* alias for type-detection */
100	#define EV_TIMEOUT 0x00000100L /* timer timed out */	142	#define EV_TIMEOUT 0x00000100 /* timer timed out */
		143	#define EV_TIMER EV_TIMEOUT /* alias for type-detection */
101	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	144	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
102	#define EV_SIGNAL 0x00000400L /* signal was received */	145	#define EV_SIGNAL 0x00000400 /* signal was received */
103	#define EV_CHILD 0x00000800L /* child/pid had status change */	146	#define EV_CHILD 0x00000800 /* child/pid had status change */
104	#define EV_STAT 0x00001000L /* stat data changed */	147	#define EV_STAT 0x00001000 /* stat data changed */
105	#define EV_IDLE 0x00002000L /* event loop is idling */	148	#define EV_IDLE 0x00002000 /* event loop is idling */
106	#define EV_PREPARE 0x00004000L /* event loop about to poll */	149	#define EV_PREPARE 0x00004000 /* event loop about to poll */
107	#define EV_CHECK 0x00008000L /* event loop finished poll */	150	#define EV_CHECK 0x00008000 /* event loop finished poll */
108	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */	151	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
109	#define EV_FORK 0x00020000L /* event loop resumed in child */	152	#define EV_FORK 0x00020000 /* event loop resumed in child */
		153	#define EV_ASYNC 0x00040000 /* async intra-loop signal */
		154	#define EV_CUSTOM 0x01000000 /* for use by user code */
110	#define EV_ERROR 0x80000000L /* sent when an error occurs */	155	#define EV_ERROR 0x80000000 /* sent when an error occurs */
111		156
112	/* can be used to add custom fields to all watchers, while losing binary compatibility */	157	/* can be used to add custom fields to all watchers, while losing binary compatibility */
113	#ifndef EV_COMMON	158	#ifndef EV_COMMON
114	# define EV_COMMON void *data;	159	# define EV_COMMON void *data;
115	#endif	160	#endif
116	#ifndef EV_PROTOTYPES	161	#ifndef EV_PROTOTYPES
117	# define EV_PROTOTYPES 1	162	# define EV_PROTOTYPES 1
118	#endif	163	#endif
119		164
120	#define EV_VERSION_MAJOR 1	165	#define EV_VERSION_MAJOR 3
121	#define EV_VERSION_MINOR 1	166	#define EV_VERSION_MINOR 8
122		167
123	#ifndef EV_CB_DECLARE	168	#ifndef EV_CB_DECLARE
124	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	169	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
125	#endif	170	#endif
126	#ifndef EV_CB_INVOKE	171	#ifndef EV_CB_INVOKE
127	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	172	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
128	#endif	173	#endif
129		174
130	/*	175	/*
131	* struct member types:	176	* struct member types:
132	* private: you can look at them, but not change them, and they might not mean anything to you.	177	* private: you may look at them, but not change them,
		178	* and they might not mean anything to you.
133	* ro: can be read anytime, but only changed when the watcher isn't active	179	* ro: can be read anytime, but only changed when the watcher isn't active.
134	* rw: can be read and modified anytime, even when the watcher is active	180	* rw: can be read and modified anytime, even when the watcher is active.
		181	*
		182	* some internal details that might be helpful for debugging:
		183	*
		184	* active is either 0, which means the watcher is not active,
		185	* or the array index of the watcher (periodics, timers)
		186	* or the array index + 1 (most other watchers)
		187	* or simply 1 for watchers that aren't in some array.
		188	* pending is either 0, in which case the watcher isn't,
		189	* or the array index + 1 in the pendings array.
135	*/	190	*/
		191
		192	#if EV_MINPRI == EV_MAXPRI
		193	# define EV_DECL_PRIORITY
		194	#else
		195	# define EV_DECL_PRIORITY int priority;
		196	#endif
136		197
137	/* shared by all watchers */	198	/* shared by all watchers */
138	#define EV_WATCHER(type) \	199	#define EV_WATCHER(type) \
139	int active; /* private */ \	200	int active; /* private */ \
140	int pending; /* private */ \	201	int pending; /* private */ \
141	int priority; /* private */ \	202	EV_DECL_PRIORITY /* private */ \
142	EV_COMMON /* rw */ \	203	EV_COMMON /* rw */ \
143	EV_CB_DECLARE (type) /* private */	204	EV_CB_DECLARE (type) /* private */
144		205
145	#define EV_WATCHER_LIST(type) \	206	#define EV_WATCHER_LIST(type) \
146	EV_WATCHER (type) \	207	EV_WATCHER (type) \
…		…
191	/* revent EV_PERIODIC */	252	/* revent EV_PERIODIC */
192	typedef struct ev_periodic	253	typedef struct ev_periodic
193	{	254	{
194	EV_WATCHER_TIME (ev_periodic)	255	EV_WATCHER_TIME (ev_periodic)
195		256
		257	ev_tstamp offset; /* rw */
196	ev_tstamp interval; /* rw */	258	ev_tstamp interval; /* rw */
197	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	259	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
198	} ev_periodic;	260	} ev_periodic;
199		261
200	/* invoked when the given signal has been received */	262	/* invoked when the given signal has been received */
…		…
211	/* does not support priorities */	273	/* does not support priorities */
212	typedef struct ev_child	274	typedef struct ev_child
213	{	275	{
214	EV_WATCHER_LIST (ev_child)	276	EV_WATCHER_LIST (ev_child)
215		277
		278	int flags; /* private */
216	int pid; /* ro */	279	int pid; /* ro */
217	int rpid; /* rw, holds the received pid */	280	int rpid; /* rw, holds the received pid */
218	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	281	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
219	} ev_child;	282	} ev_child;
220		283
221	#if EV_STAT_ENABLE	284	#if EV_STAT_ENABLE
222	/* st_nlink = 0 means missing file or other error */	285	/* st_nlink = 0 means missing file or other error */
223	#ifdef _WIN32	286	# ifdef _WIN32
224	typedef struct _stati64 ev_statdata;	287	typedef struct _stati64 ev_statdata;
225	#else	288	# else
226	typedef struct stat ev_statdata;	289	typedef struct stat ev_statdata;
227	#endif	290	# endif
228		291
229	/* invoked each time the stat data changes for a given path */	292	/* invoked each time the stat data changes for a given path */
230	/* revent EV_STAT */	293	/* revent EV_STAT */
231	typedef struct ev_stat	294	typedef struct ev_stat
232	{	295	{
233	EV_WATCHER (ev_stat)	296	EV_WATCHER_LIST (ev_stat)
234		297
235	ev_timer timer; /* private */	298	ev_timer timer; /* private */
236	ev_tstamp interval; /* ro */	299	ev_tstamp interval; /* ro */
237	const char path; / ro */	300	const char path; / ro */
238	ev_statdata prev; /* ro */	301	ev_statdata prev; /* ro */
239	ev_statdata attr; /* ro */	302	ev_statdata attr; /* ro */
		303
		304	int wd; /* wd for inotify, fd for kqueue */
240	} ev_stat;	305	} ev_stat;
241	#endif	306	#endif
242		307
		308	#if EV_IDLE_ENABLE
243	/* invoked when the nothing else needs to be done, keeps the process from blocking */	309	/* invoked when the nothing else needs to be done, keeps the process from blocking */
244	/* revent EV_IDLE */	310	/* revent EV_IDLE */
245	typedef struct ev_idle	311	typedef struct ev_idle
246	{	312	{
247	EV_WATCHER (ev_idle)	313	EV_WATCHER (ev_idle)
248	} ev_idle;	314	} ev_idle;
		315	#endif
249		316
250	/* invoked for each run of the mainloop, just before the blocking call */	317	/* invoked for each run of the mainloop, just before the blocking call */
251	/* you can still change events in any way you like */	318	/* you can still change events in any way you like */
252	/* revent EV_PREPARE */	319	/* revent EV_PREPARE */
253	typedef struct ev_prepare	320	typedef struct ev_prepare
…		…
275	/* the callback gets invoked when the event loop has handled events, and can be 0 */	342	/* the callback gets invoked when the event loop has handled events, and can be 0 */
276	typedef struct ev_embed	343	typedef struct ev_embed
277	{	344	{
278	EV_WATCHER (ev_embed)	345	EV_WATCHER (ev_embed)
279		346
280	ev_io io; /* private */
281	struct ev_loop loop; / ro */	347	struct ev_loop other; / ro */
		348	ev_io io; /* private */
		349	ev_prepare prepare; /* private */
		350	ev_check check; /* unused */
		351	ev_timer timer; /* unused */
		352	ev_periodic periodic; /* unused */
		353	ev_idle idle; /* unused */
		354	ev_fork fork; /* private */
282	} ev_embed;	355	} ev_embed;
		356	#endif
		357
		358	#if EV_ASYNC_ENABLE
		359	/* invoked when somebody calls ev_async_send on the watcher */
		360	/* revent EV_ASYNC */
		361	typedef struct ev_async
		362	{
		363	EV_WATCHER (ev_async)
		364
		365	EV_ATOMIC_T sent; /* private */
		366	} ev_async;
		367
		368	# define ev_async_pending(w) (+(w)->sent)
283	#endif	369	#endif
284		370
285	/* the presence of this union forces similar struct layout */	371	/* the presence of this union forces similar struct layout */
286	union ev_any_watcher	372	union ev_any_watcher
287	{	373	{
…		…
294	struct ev_signal signal;	380	struct ev_signal signal;
295	struct ev_child child;	381	struct ev_child child;
296	#if EV_STAT_ENABLE	382	#if EV_STAT_ENABLE
297	struct ev_stat stat;	383	struct ev_stat stat;
298	#endif	384	#endif
		385	#if EV_IDLE_ENABLE
299	struct ev_idle idle;	386	struct ev_idle idle;
		387	#endif
300	struct ev_prepare prepare;	388	struct ev_prepare prepare;
301	struct ev_check check;	389	struct ev_check check;
302	#if EV_FORK_ENABLE	390	#if EV_FORK_ENABLE
303	struct ev_fork fork;	391	struct ev_fork fork;
304	#endif	392	#endif
305	#if EV_EMBED_ENABLE	393	#if EV_EMBED_ENABLE
306	struct ev_embed embed;	394	struct ev_embed embed;
307	#endif	395	#endif
		396	#if EV_ASYNC_ENABLE
		397	struct ev_async async;
		398	#endif
308	};	399	};
309		400
310	/* bits for ev_default_loop and ev_loop_new */	401	/* bits for ev_default_loop and ev_loop_new */
311	/* the default */	402	/* the default */
312	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	403	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
313	/* flag bits */	404	/* flag bits */
314	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	405	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
		406	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
		407	/* debugging/feature disable */
		408	#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */
		409	#define EVFLAG_NOSIGFD 0x00200000U /* do not attempt to use signalfd */
315	/* method bits to be ored together */	410	/* method bits to be ored together */
316	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	411	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
317	#define EVBACKEND_POLL 0x00000002UL /* !win */	412	#define EVBACKEND_POLL 0x00000002U /* !win */
318	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	413	#define EVBACKEND_EPOLL 0x00000004U /* linux */
319	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	414	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
320	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	415	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
321	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	416	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
		417	#define EVBACKEND_ALL 0x0000003FU
322		418
323	#if EV_PROTOTYPES	419	#if EV_PROTOTYPES
324	int ev_version_major (void);	420	int ev_version_major (void);
325	int ev_version_minor (void);	421	int ev_version_minor (void);
326		422
327	unsigned int ev_supported_backends (void);	423	unsigned int ev_supported_backends (void);
328	unsigned int ev_recommended_backends (void);	424	unsigned int ev_recommended_backends (void);
329	unsigned int ev_embeddable_backends (void);	425	unsigned int ev_embeddable_backends (void);
330		426
331	ev_tstamp ev_time (void);	427	ev_tstamp ev_time (void);
		428	void ev_sleep (ev_tstamp delay); /* sleep for a while */
332		429
333	/* Sets the allocation function to use, works like realloc.	430	/* Sets the allocation function to use, works like realloc.
334	* It is used to allocate and free memory.	431	* It is used to allocate and free memory.
335	* If it returns zero when memory needs to be allocated, the library might abort	432	* If it returns zero when memory needs to be allocated, the library might abort
336	* or take some potentially destructive action.	433	* or take some potentially destructive action.
337	* The default is your system realloc function.	434	* The default is your system realloc function.
338	*/	435	*/
339	void ev_set_allocator (void (cb)(void *ptr, size_t size));	436	void ev_set_allocator (void (cb)(void *ptr, long size));
340		437
341	/* set the callback function to call on a	438	/* set the callback function to call on a
342	* retryable syscall error	439	* retryable syscall error
343	* (such as failed select, poll, epoll_wait)	440	* (such as failed select, poll, epoll_wait)
344	*/	441	*/
345	void ev_set_syserr_cb (void (cb)(const char msg));	442	void ev_set_syserr_cb (void (cb)(const char msg));
346		443
347	# if EV_MULTIPLICITY	444	#if EV_MULTIPLICITY
		445	EV_INLINE struct ev_loop *
		446	ev_default_loop_uc (void)
		447	{
		448	extern struct ev_loop *ev_default_loop_ptr;
		449
		450	return ev_default_loop_ptr;
		451	}
		452
348	/* the default loop is the only one that handles signals and child watchers */	453	/* the default loop is the only one that handles signals and child watchers */
349	/* you can call this as often as you like */	454	/* you can call this as often as you like */
350	static struct ev_loop *	455	EV_INLINE struct ev_loop *
351	ev_default_loop (unsigned int flags)	456	ev_default_loop (unsigned int flags)
352	{	457	{
353	extern struct ev_loop *ev_default_loop_ptr;	458	struct ev_loop *loop = ev_default_loop_uc ();
		459
		460	if (!loop)
		461	{
354	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	462	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
355		463
356	if (!ev_default_loop_ptr)
357	ev_default_loop_init (flags);	464	loop = ev_default_loop_init (flags);
		465	}
358		466
359	return ev_default_loop_ptr;	467	return loop;
360	}	468	}
361		469
362	/* create and destroy alternative loops that don't handle signals */	470	/* create and destroy alternative loops that don't handle signals */
363	struct ev_loop *ev_loop_new (unsigned int flags);	471	struct ev_loop *ev_loop_new (unsigned int flags);
364	void ev_loop_destroy (EV_P);	472	void ev_loop_destroy (EV_P);
365	void ev_loop_fork (EV_P);	473	void ev_loop_fork (EV_P);
366		474
367	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	475	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
368		476
369	# else	477	#else
370		478
371	int ev_default_loop (unsigned int flags); /* returns true when successful */	479	int ev_default_loop (unsigned int flags); /* returns true when successful */
372		480
373	static ev_tstamp	481	EV_INLINE ev_tstamp
374	ev_now (void)	482	ev_now (void)
375	{	483	{
376	extern ev_tstamp ev_rt_now;	484	extern ev_tstamp ev_rt_now;
377		485
378	return ev_rt_now;	486	return ev_rt_now;
379	}	487	}
		488	#endif /* multiplicity */
		489
		490	EV_INLINE int
		491	ev_is_default_loop (EV_P)
		492	{
		493	#if EV_MULTIPLICITY
		494	extern struct ev_loop *ev_default_loop_ptr;
		495
		496	return !!(EV_A == ev_default_loop_ptr);
		497	#else
		498	return 1;
380	# endif	499	#endif
		500	}
381		501
382	void ev_default_destroy (void); /* destroy the default loop */	502	void ev_default_destroy (void); /* destroy the default loop */
383	/* this needs to be called after fork, to duplicate the default loop */	503	/* this needs to be called after fork, to duplicate the default loop */
384	/* if you create alternative loops you have to call ev_loop_fork on them */	504	/* if you create alternative loops you have to call ev_loop_fork on them */
385	/* you can call it in either the parent or the child */	505	/* you can call it in either the parent or the child */
386	/* you can actually call it at any time, anywhere :) */	506	/* you can actually call it at any time, anywhere :) */
387	void ev_default_fork (void);	507	void ev_default_fork (void);
388		508
389	unsigned int ev_backend (EV_P);	509	unsigned int ev_backend (EV_P); /* backend in use by loop */
		510
		511	void ev_now_update (EV_P); /* update event loop time */
		512
		513	#if EV_WALK_ENABLE
		514	/* walk (almost) all watchers in the loop of a given type, invoking the */
		515	/* callback on every such watcher. The callback might stop the watcher, */
		516	/* but do nothing else with the loop */
		517	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
390	#endif	518	#endif
		519
		520	#endif /* prototypes */
391		521
392	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	522	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
393	#define EVLOOP_ONESHOT 2 /* block once only */	523	#define EVLOOP_ONESHOT 2 /* block once only */
394	#define EVUNLOOP_CANCEL 0 /* undo unloop */	524	#define EVUNLOOP_CANCEL 0 /* undo unloop */
395	#define EVUNLOOP_ONE 1 /* unloop once */	525	#define EVUNLOOP_ONE 1 /* unloop once */
…		…
399	void ev_loop (EV_P_ int flags);	529	void ev_loop (EV_P_ int flags);
400	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 */	530	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 */
401		531
402	/*	532	/*
403	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	533	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
404	* keeps one reference. if you have a long-runing watcher you never unregister that	534	* keeps one reference. if you have a long-running watcher you never unregister that
405	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	535	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
406	*/	536	*/
407	void ev_ref (EV_P);	537	void ev_ref (EV_P);
408	void ev_unref (EV_P);	538	void ev_unref (EV_P);
409		539
		540	/*
410	/* convinience function, wait for a single event, without registering an event watcher */	541	* convenience function, wait for a single event, without registering an event watcher
411	/* if timeout is < 0, do wait indefinitely */	542	* if timeout is < 0, do wait indefinitely
		543	*/
412	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	544	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
		545
		546	# if EV_MINIMAL < 2
		547	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
		548	unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
		549	void ev_loop_verify (EV_P); /* abort if loop data corrupted */
		550
		551	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		552	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		553
		554	/* advanced stuff for threading etc. support, see docs */
		555	void ev_set_userdata (EV_P_ void *data);
		556	void *ev_userdata (EV_P);
		557	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
		558	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));
		559
		560	unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
		561	void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		562
		563	/*
		564	* stop/start the timer handling.
		565	*/
		566	void ev_suspend (EV_P);
		567	void ev_resume (EV_P);
		568	#endif
		569
413	#endif	570	#endif
414		571
415	/* these may evaluate ev multiple times, and the other arguments at most once */	572	/* these may evaluate ev multiple times, and the other arguments at most once */
416	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	573	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
417	#define ev_init(ev,cb_) do { \	574	#define ev_init(ev,cb_) do { \
418	((ev_watcher )(void )(ev))->active = \	575	((ev_watcher )(void )(ev))->active = \
419	((ev_watcher )(void )(ev))->pending = \	576	((ev_watcher )(void )(ev))->pending = 0; \
420	((ev_watcher )(void )(ev))->priority = 0; \	577	ev_set_priority ((ev), 0); \
421	ev_set_cb ((ev), cb_); \	578	ev_set_cb ((ev), cb_); \
422	} while (0)	579	} while (0)
423		580
424	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	581	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
425	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	582	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
426	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	583	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
427	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	584	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
428	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	585	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
429	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0)	586	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
430	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	587	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
431	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	588	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
432	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	589	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
433	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	590	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
434	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	591	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		592	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
435		593
436	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	594	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
437	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	595	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
438	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	596	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
439	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	597	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
440	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	598	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
441	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	599	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
442	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	600	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
443	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	601	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
444	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	602	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
445	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	603	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
446	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	604	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		605	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
447		606
448	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	607	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
449	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	608	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
450		609
451	#define ev_priority(ev) ((ev_watcher )(void )(ev))->priority /* rw */
452	#define ev_cb(ev) (ev)->cb /* rw */	610	#define ev_cb(ev) (ev)->cb /* rw */
		611
		612	#if EV_MINPRI == EV_MAXPRI
		613	# define ev_priority(ev) ((ev), EV_MINPRI)
453	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	614	# define ev_set_priority(ev,pri) ((ev), (pri))
		615	#else
		616	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
		617	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		618	#endif
		619
		620	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
454		621
455	#ifndef ev_set_cb	622	#ifndef ev_set_cb
456	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	623	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
457	#endif	624	#endif
458		625
459	/* stopping (enabling, adding) a watcher does nothing if it is already running */	626	/* stopping (enabling, adding) a watcher does nothing if it is already running */
460	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	627	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
461	#if EV_PROTOTYPES	628	#if EV_PROTOTYPES
…		…
463	/* feeds an event into a watcher as if the event actually occured */	630	/* feeds an event into a watcher as if the event actually occured */
464	/* accepts any ev_watcher type */	631	/* accepts any ev_watcher type */
465	void ev_feed_event (EV_P_ void *w, int revents);	632	void ev_feed_event (EV_P_ void *w, int revents);
466	void ev_feed_fd_event (EV_P_ int fd, int revents);	633	void ev_feed_fd_event (EV_P_ int fd, int revents);
467	void ev_feed_signal_event (EV_P_ int signum);	634	void ev_feed_signal_event (EV_P_ int signum);
		635	void ev_invoke (EV_P_ void *w, int revents);
		636	int ev_clear_pending (EV_P_ void *w);
468		637
469	void ev_io_start (EV_P_ ev_io *w);	638	void ev_io_start (EV_P_ ev_io *w);
470	void ev_io_stop (EV_P_ ev_io *w);	639	void ev_io_stop (EV_P_ ev_io *w);
471		640
472	void ev_timer_start (EV_P_ ev_timer *w);	641	void ev_timer_start (EV_P_ ev_timer *w);
473	void ev_timer_stop (EV_P_ ev_timer *w);	642	void ev_timer_stop (EV_P_ ev_timer *w);
474	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	643	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
475	void ev_timer_again (EV_P_ ev_timer *w);	644	void ev_timer_again (EV_P_ ev_timer *w);
		645	/* return remaining time */
		646	ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
476		647
477	#if EV_PERIODIC_ENABLE	648	#if EV_PERIODIC_ENABLE
478	void ev_periodic_start (EV_P_ ev_periodic *w);	649	void ev_periodic_start (EV_P_ ev_periodic *w);
479	void ev_periodic_stop (EV_P_ ev_periodic *w);	650	void ev_periodic_stop (EV_P_ ev_periodic *w);
480	void ev_periodic_again (EV_P_ ev_periodic *w);	651	void ev_periodic_again (EV_P_ ev_periodic *w);
…		…
492	void ev_stat_start (EV_P_ ev_stat *w);	663	void ev_stat_start (EV_P_ ev_stat *w);
493	void ev_stat_stop (EV_P_ ev_stat *w);	664	void ev_stat_stop (EV_P_ ev_stat *w);
494	void ev_stat_stat (EV_P_ ev_stat *w);	665	void ev_stat_stat (EV_P_ ev_stat *w);
495	# endif	666	# endif
496		667
		668	# if EV_IDLE_ENABLE
497	void ev_idle_start (EV_P_ ev_idle *w);	669	void ev_idle_start (EV_P_ ev_idle *w);
498	void ev_idle_stop (EV_P_ ev_idle *w);	670	void ev_idle_stop (EV_P_ ev_idle *w);
		671	# endif
499		672
500	void ev_prepare_start (EV_P_ ev_prepare *w);	673	void ev_prepare_start (EV_P_ ev_prepare *w);
501	void ev_prepare_stop (EV_P_ ev_prepare *w);	674	void ev_prepare_stop (EV_P_ ev_prepare *w);
502		675
503	void ev_check_start (EV_P_ ev_check *w);	676	void ev_check_start (EV_P_ ev_check *w);
…		…
513	void ev_embed_start (EV_P_ ev_embed *w);	686	void ev_embed_start (EV_P_ ev_embed *w);
514	void ev_embed_stop (EV_P_ ev_embed *w);	687	void ev_embed_stop (EV_P_ ev_embed *w);
515	void ev_embed_sweep (EV_P_ ev_embed *w);	688	void ev_embed_sweep (EV_P_ ev_embed *w);
516	# endif	689	# endif
517		690
		691	# if EV_ASYNC_ENABLE
		692	void ev_async_start (EV_P_ ev_async *w);
		693	void ev_async_stop (EV_P_ ev_async *w);
		694	void ev_async_send (EV_P_ ev_async *w);
		695	# endif
		696
518	#endif	697	#endif
519		698
520	#ifdef __cplusplus	699	#ifdef __cplusplus
521	}	700	}
522	#endif	701	#endif

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Comparing libev/ev.h (file contents): Revision 1.73 by root, Tue Nov 27 19:41:52 2007 UTC vs. Revision 1.128 by root, Tue Oct 20 00:50:31 2009 UTC

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Comparing libev/ev.h (file contents):
Revision 1.73 by root, Tue Nov 27 19:41:52 2007 UTC vs.
Revision 1.128 by root, Tue Oct 20 00:50:31 2009 UTC