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

Comparing libev/ev.h (file contents):
Revision 1.72 by root, Tue Nov 27 10:59:11 2007 UTC vs.
Revision 1.116 by root, Wed Jul 8 02:46:05 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
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	#if EV_STAT_ENABLE	96	#if EV_STAT_ENABLE
		97	# ifdef _WIN32
		98	# include <time.h>
		99	# include <sys/types.h>
		100	# endif
70	# include <sys/stat.h>	101	# include <sys/stat.h>
71	#endif	102	#endif
72		103
73	/* support multiple event loops? */	104	/* support multiple event loops? */
74	#if EV_MULTIPLICITY	105	#if EV_MULTIPLICITY
75	struct ev_loop;	106	struct ev_loop;
76	# define EV_P struct ev_loop *loop	107	# define EV_P struct ev_loop *loop
77	# define EV_P_ EV_P,	108	# define EV_P_ EV_P,
78	# define EV_A loop	109	# define EV_A loop
79	# 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,
80	# define EV_DEFAULT ev_default_loop (0)	113	# define EV_DEFAULT ev_default_loop (0)
81	# define EV_DEFAULT_ EV_DEFAULT,	114	# define EV_DEFAULT_ EV_DEFAULT,
82	#else	115	#else
83	# define EV_P void	116	# define EV_P void
84	# define EV_P_	117	# define EV_P_
85	# define EV_A	118	# define EV_A
86	# define EV_A_	119	# define EV_A_
87	# define EV_DEFAULT	120	# define EV_DEFAULT
88	# define EV_DEFAULT_	121	# define EV_DEFAULT_
89		122	# define EV_DEFAULT_UC
		123	# define EV_DEFAULT_UC_
90	# undef EV_EMBED_ENABLE	124	# undef EV_EMBED_ENABLE
91	#endif	125	#endif
92		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
93	/* eventmask, revents, events... */	135	/* eventmask, revents, events... */
94	#define EV_UNDEF -1L /* guaranteed to be invalid */	136	#define EV_UNDEF -1 /* guaranteed to be invalid */
95	#define EV_NONE 0x00L /* no events */	137	#define EV_NONE 0x00 /* no events */
96	#define EV_READ 0x01L /* ev_io detected read will not block */	138	#define EV_READ 0x01 /* ev_io detected read will not block */
97	#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 */
98	#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 */
99	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	144	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
100	#define EV_SIGNAL 0x00000400L /* signal was received */	145	#define EV_SIGNAL 0x00000400 /* signal was received */
101	#define EV_CHILD 0x00000800L /* child/pid had status change */	146	#define EV_CHILD 0x00000800 /* child/pid had status change */
102	#define EV_STAT 0x00001000L /* stat data changed */	147	#define EV_STAT 0x00001000 /* stat data changed */
103	#define EV_IDLE 0x00002000L /* event loop is idling */	148	#define EV_IDLE 0x00002000 /* event loop is idling */
104	#define EV_PREPARE 0x00004000L /* event loop about to poll */	149	#define EV_PREPARE 0x00004000 /* event loop about to poll */
105	#define EV_CHECK 0x00008000L /* event loop finished poll */	150	#define EV_CHECK 0x00008000 /* event loop finished poll */
106	#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */	151	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
107	#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 */
108	#define EV_ERROR 0x80000000L /* sent when an error occurs */	155	#define EV_ERROR 0x80000000 /* sent when an error occurs */
109		156
110	/* 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 */
111	#ifndef EV_COMMON	158	#ifndef EV_COMMON
112	# define EV_COMMON void *data;	159	# define EV_COMMON void *data;
113	#endif	160	#endif
114	#ifndef EV_PROTOTYPES	161	#ifndef EV_PROTOTYPES
115	# define EV_PROTOTYPES 1	162	# define EV_PROTOTYPES 1
116	#endif	163	#endif
117		164
118	#define EV_VERSION_MAJOR 1	165	#define EV_VERSION_MAJOR 3
119	#define EV_VERSION_MINOR 1	166	#define EV_VERSION_MINOR 0
120		167
121	#ifndef EV_CB_DECLARE	168	#ifndef EV_CB_DECLARE
122	# 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);
123	#endif	170	#endif
124	#ifndef EV_CB_INVOKE	171	#ifndef EV_CB_INVOKE
125	# 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))
126	#endif	173	#endif
127		174
128	/*	175	/*
129	* struct member types:	176	* struct member types:
130	* 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.
131	* 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.
132	* 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.
133	*/	190	*/
134		191
135	/* shared by all watchers */	192	/* shared by all watchers */
136	#define EV_WATCHER(type) \	193	#define EV_WATCHER(type) \
137	int active; /* private */ \	194	int active; /* private */ \
…		…
189	/* revent EV_PERIODIC */	246	/* revent EV_PERIODIC */
190	typedef struct ev_periodic	247	typedef struct ev_periodic
191	{	248	{
192	EV_WATCHER_TIME (ev_periodic)	249	EV_WATCHER_TIME (ev_periodic)
193		250
		251	ev_tstamp offset; /* rw */
194	ev_tstamp interval; /* rw */	252	ev_tstamp interval; /* rw */
195	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	253	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
196	} ev_periodic;	254	} ev_periodic;
197		255
198	/* invoked when the given signal has been received */	256	/* invoked when the given signal has been received */
…		…
209	/* does not support priorities */	267	/* does not support priorities */
210	typedef struct ev_child	268	typedef struct ev_child
211	{	269	{
212	EV_WATCHER_LIST (ev_child)	270	EV_WATCHER_LIST (ev_child)
213		271
		272	int flags; /* private */
214	int pid; /* ro */	273	int pid; /* ro */
215	int rpid; /* rw, holds the received pid */	274	int rpid; /* rw, holds the received pid */
216	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */	275	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
217	} ev_child;	276	} ev_child;
218		277
219	#if EV_STAT_ENABLE	278	#if EV_STAT_ENABLE
220	/* st_nlink = 0 means missing file or other error */	279	/* st_nlink = 0 means missing file or other error */
221	#ifdef _WIN32	280	# ifdef _WIN32
222	typedef struct _stati64 ev_statdata;	281	typedef struct _stati64 ev_statdata;
223	#else	282	# else
224	typedef struct stat ev_statdata;	283	typedef struct stat ev_statdata;
225	#endif	284	# endif
226		285
227	/* invoked each time the stat data changes for a given path */	286	/* invoked each time the stat data changes for a given path */
228	/* revent EV_STAT */	287	/* revent EV_STAT */
229	typedef struct ev_stat	288	typedef struct ev_stat
230	{	289	{
231	EV_WATCHER (ev_stat)	290	EV_WATCHER_LIST (ev_stat)
232		291
233	ev_timer timer; /* private */	292	ev_timer timer; /* private */
234	ev_tstamp interval; /* ro */	293	ev_tstamp interval; /* ro */
235	const char path; / ro */	294	const char path; / ro */
236	ev_statdata prev; /* ro */	295	ev_statdata prev; /* ro */
237	ev_statdata attr; /* ro */	296	ev_statdata attr; /* ro */
		297
		298	int wd; /* wd for inotify, fd for kqueue */
238	} ev_stat;	299	} ev_stat;
239	#endif	300	#endif
240		301
		302	#if EV_IDLE_ENABLE
241	/* invoked when the nothing else needs to be done, keeps the process from blocking */	303	/* invoked when the nothing else needs to be done, keeps the process from blocking */
242	/* revent EV_IDLE */	304	/* revent EV_IDLE */
243	typedef struct ev_idle	305	typedef struct ev_idle
244	{	306	{
245	EV_WATCHER (ev_idle)	307	EV_WATCHER (ev_idle)
246	} ev_idle;	308	} ev_idle;
		309	#endif
247		310
248	/* invoked for each run of the mainloop, just before the blocking call */	311	/* invoked for each run of the mainloop, just before the blocking call */
249	/* you can still change events in any way you like */	312	/* you can still change events in any way you like */
250	/* revent EV_PREPARE */	313	/* revent EV_PREPARE */
251	typedef struct ev_prepare	314	typedef struct ev_prepare
…		…
273	/* the callback gets invoked when the event loop has handled events, and can be 0 */	336	/* the callback gets invoked when the event loop has handled events, and can be 0 */
274	typedef struct ev_embed	337	typedef struct ev_embed
275	{	338	{
276	EV_WATCHER (ev_embed)	339	EV_WATCHER (ev_embed)
277		340
278	ev_io io; /* private */
279	struct ev_loop loop; / ro */	341	struct ev_loop other; / ro */
		342	ev_io io; /* private */
		343	ev_prepare prepare; /* private */
		344	ev_check check; /* unused */
		345	ev_timer timer; /* unused */
		346	ev_periodic periodic; /* unused */
		347	ev_idle idle; /* unused */
		348	ev_fork fork; /* private */
280	} ev_embed;	349	} ev_embed;
		350	#endif
		351
		352	#if EV_ASYNC_ENABLE
		353	/* invoked when somebody calls ev_async_send on the watcher */
		354	/* revent EV_ASYNC */
		355	typedef struct ev_async
		356	{
		357	EV_WATCHER (ev_async)
		358
		359	EV_ATOMIC_T sent; /* private */
		360	} ev_async;
		361
		362	# define ev_async_pending(w) ((w)->sent + 0)
281	#endif	363	#endif
282		364
283	/* the presence of this union forces similar struct layout */	365	/* the presence of this union forces similar struct layout */
284	union ev_any_watcher	366	union ev_any_watcher
285	{	367	{
…		…
292	struct ev_signal signal;	374	struct ev_signal signal;
293	struct ev_child child;	375	struct ev_child child;
294	#if EV_STAT_ENABLE	376	#if EV_STAT_ENABLE
295	struct ev_stat stat;	377	struct ev_stat stat;
296	#endif	378	#endif
		379	#if EV_IDLE_ENABLE
297	struct ev_idle idle;	380	struct ev_idle idle;
		381	#endif
298	struct ev_prepare prepare;	382	struct ev_prepare prepare;
299	struct ev_check check;	383	struct ev_check check;
300	#if EV_FORK_ENABLE	384	#if EV_FORK_ENABLE
301	struct ev_fork fork;	385	struct ev_fork fork;
302	#endif	386	#endif
303	#if EV_EMBED_ENABLE	387	#if EV_EMBED_ENABLE
304	struct ev_embed embed;	388	struct ev_embed embed;
305	#endif	389	#endif
		390	#if EV_ASYNC_ENABLE
		391	struct ev_async async;
		392	#endif
306	};	393	};
307		394
308	/* bits for ev_default_loop and ev_loop_new */	395	/* bits for ev_default_loop and ev_loop_new */
309	/* the default */	396	/* the default */
310	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	397	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
311	/* flag bits */	398	/* flag bits */
312	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	399	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
		400	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
313	/* method bits to be ored together */	401	/* method bits to be ored together */
314	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	402	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
315	#define EVBACKEND_POLL 0x00000002UL /* !win */	403	#define EVBACKEND_POLL 0x00000002U /* !win */
316	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	404	#define EVBACKEND_EPOLL 0x00000004U /* linux */
317	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	405	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
318	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	406	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
319	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	407	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
320		408
321	#if EV_PROTOTYPES	409	#if EV_PROTOTYPES
322	int ev_version_major (void);	410	int ev_version_major (void);
323	int ev_version_minor (void);	411	int ev_version_minor (void);
324		412
325	unsigned int ev_supported_backends (void);	413	unsigned int ev_supported_backends (void);
326	unsigned int ev_recommended_backends (void);	414	unsigned int ev_recommended_backends (void);
327	unsigned int ev_embeddable_backends (void);	415	unsigned int ev_embeddable_backends (void);
328		416
329	ev_tstamp ev_time (void);	417	ev_tstamp ev_time (void);
		418	void ev_sleep (ev_tstamp delay); /* sleep for a while */
330		419
331	/* Sets the allocation function to use, works like realloc.	420	/* Sets the allocation function to use, works like realloc.
332	* It is used to allocate and free memory.	421	* It is used to allocate and free memory.
333	* If it returns zero when memory needs to be allocated, the library might abort	422	* If it returns zero when memory needs to be allocated, the library might abort
334	* or take some potentially destructive action.	423	* or take some potentially destructive action.
…		…
340	* retryable syscall error	429	* retryable syscall error
341	* (such as failed select, poll, epoll_wait)	430	* (such as failed select, poll, epoll_wait)
342	*/	431	*/
343	void ev_set_syserr_cb (void (cb)(const char msg));	432	void ev_set_syserr_cb (void (cb)(const char msg));
344		433
345	# if EV_MULTIPLICITY	434	#if EV_MULTIPLICITY
		435	EV_INLINE struct ev_loop *
		436	ev_default_loop_uc (void)
		437	{
		438	extern struct ev_loop *ev_default_loop_ptr;
		439
		440	return ev_default_loop_ptr;
		441	}
		442
346	/* the default loop is the only one that handles signals and child watchers */	443	/* the default loop is the only one that handles signals and child watchers */
347	/* you can call this as often as you like */	444	/* you can call this as often as you like */
348	static struct ev_loop *	445	EV_INLINE struct ev_loop *
349	ev_default_loop (unsigned int flags)	446	ev_default_loop (unsigned int flags)
350	{	447	{
351	extern struct ev_loop *ev_default_loop_ptr;	448	struct ev_loop *loop = ev_default_loop_uc ();
		449
		450	if (!loop)
		451	{
352	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	452	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
353		453
354	if (!ev_default_loop_ptr)
355	ev_default_loop_init (flags);	454	loop = ev_default_loop_init (flags);
		455	}
356		456
357	return ev_default_loop_ptr;	457	return loop;
358	}	458	}
359		459
360	/* create and destroy alternative loops that don't handle signals */	460	/* create and destroy alternative loops that don't handle signals */
361	struct ev_loop *ev_loop_new (unsigned int flags);	461	struct ev_loop *ev_loop_new (unsigned int flags);
362	void ev_loop_destroy (EV_P);	462	void ev_loop_destroy (EV_P);
363	void ev_loop_fork (EV_P);	463	void ev_loop_fork (EV_P);
364		464
365	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	465	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
		466	void ev_now_update (EV_P);
366		467
367	# else	468	#else
368		469
369	int ev_default_loop (unsigned int flags); /* returns true when successful */	470	int ev_default_loop (unsigned int flags); /* returns true when successful */
370		471
371	static ev_tstamp	472	EV_INLINE ev_tstamp
372	ev_now (void)	473	ev_now (void)
373	{	474	{
374	extern ev_tstamp ev_rt_now;	475	extern ev_tstamp ev_rt_now;
375		476
376	return ev_rt_now;	477	return ev_rt_now;
377	}	478	}
		479	#endif /* multiplicity */
		480
		481	EV_INLINE int
		482	ev_is_default_loop (EV_P)
		483	{
		484	#if EV_MULTIPLICITY
		485	extern struct ev_loop *ev_default_loop_ptr;
		486
		487	return !!(EV_A == ev_default_loop_ptr);
		488	#else
		489	return 1;
378	# endif	490	#endif
		491	}
379		492
380	void ev_default_destroy (void); /* destroy the default loop */	493	void ev_default_destroy (void); /* destroy the default loop */
381	/* this needs to be called after fork, to duplicate the default loop */	494	/* this needs to be called after fork, to duplicate the default loop */
382	/* if you create alternative loops you have to call ev_loop_fork on them */	495	/* if you create alternative loops you have to call ev_loop_fork on them */
383	/* you can call it in either the parent or the child */	496	/* you can call it in either the parent or the child */
384	/* you can actually call it at any time, anywhere :) */	497	/* you can actually call it at any time, anywhere :) */
385	void ev_default_fork (void);	498	void ev_default_fork (void);
386		499
387	unsigned int ev_backend (EV_P);	500	unsigned int ev_backend (EV_P); /* backend in use by loop */
		501	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
		502	unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
		503	void ev_loop_verify (EV_P); /* abort if loop data corrupted */
		504
		505	#if EV_WALK_ENABLE
		506	/* walk (almost) all watchers in the loop of a given type, invoking the */
		507	/* callback on every such watcher. The callback might stop the watcher, */
		508	/* but do nothing else with the loop */
		509	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
388	#endif	510	#endif
		511
		512	#endif /* prototypes */
389		513
390	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	514	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
391	#define EVLOOP_ONESHOT 2 /* block once only */	515	#define EVLOOP_ONESHOT 2 /* block once only */
392	#define EVUNLOOP_CANCEL 0 /* undo unloop */	516	#define EVUNLOOP_CANCEL 0 /* undo unloop */
393	#define EVUNLOOP_ONE 1 /* unloop once */	517	#define EVUNLOOP_ONE 1 /* unloop once */
394	#define EVUNLOOP_ALL 2 /* unloop all loops */	518	#define EVUNLOOP_ALL 2 /* unloop all loops */
395		519
396	#if EV_PROTOTYPES	520	#if EV_PROTOTYPES
397	void ev_loop (EV_P_ int flags);	521	void ev_loop (EV_P_ int flags);
398	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 */	522	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 */
		523
		524	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		525	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
399		526
400	/*	527	/*
401	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	528	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
402	* keeps one reference. if you have a long-runing watcher you never unregister that	529	* keeps one reference. if you have a long-runing watcher you never unregister that
403	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	530	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
404	*/	531	*/
405	void ev_ref (EV_P);	532	void ev_ref (EV_P);
406	void ev_unref (EV_P);	533	void ev_unref (EV_P);
407		534
		535	/*
		536	* stop/start the timer handling.
		537	*/
		538	void ev_suspend (EV_P);
		539	void ev_resume (EV_P);
		540
		541	/*
408	/* convinience function, wait for a single event, without registering an event watcher */	542	* convenience function, wait for a single event, without registering an event watcher
409	/* if timeout is < 0, do wait indefinitely */	543	* if timeout is < 0, do wait indefinitely
		544	*/
410	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	545	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
411	#endif	546	#endif
412		547
413	/* these may evaluate ev multiple times, and the other arguments at most once */	548	/* these may evaluate ev multiple times, and the other arguments at most once */
414	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	549	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
415	#define ev_init(ev,cb_) do { \	550	#define ev_init(ev,cb_) do { \
416	((ev_watcher )(void )(ev))->active = \	551	((ev_watcher )(void )(ev))->active = \
417	((ev_watcher )(void )(ev))->pending = \	552	((ev_watcher )(void )(ev))->pending = \
418	((ev_watcher )(void )(ev))->priority = 0; \	553	((ev_watcher )(void )(ev))->priority = 0; \
419	ev_set_cb ((ev), cb_); \	554	ev_set_cb ((ev), cb_); \
420	} while (0)	555	} while (0)
421		556
422	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	557	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
423	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	558	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
424	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	559	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
425	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	560	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
426	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)	561	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
427	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0)	562	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
428	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	563	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
429	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	564	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
430	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	565	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
431	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	566	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
432	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */	567	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		568	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
433		569
434	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	570	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
435	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	571	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
436	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	572	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
437	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	573	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
438	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)	574	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
439	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	575	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
440	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	576	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
441	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	577	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
442	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	578	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
443	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	579	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
444	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)	580	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		581	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
445		582
446	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	583	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
447	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	584	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
448		585
449	#define ev_priority(ev) ((ev_watcher )(void )(ev))->priority /* rw */	586	#define ev_priority(ev) ((((ev_watcher )(void )(ev))->priority) + 0)
450	#define ev_cb(ev) (ev)->cb /* rw */	587	#define ev_cb(ev) (ev)->cb /* rw */
451	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	588	#define ev_set_priority(ev,pri) ((ev_watcher )(void )(ev))->priority = (pri)
		589
		590	#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
452		591
453	#ifndef ev_set_cb	592	#ifndef ev_set_cb
454	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	593	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
455	#endif	594	#endif
456		595
457	/* stopping (enabling, adding) a watcher does nothing if it is already running */	596	/* stopping (enabling, adding) a watcher does nothing if it is already running */
458	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	597	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
459	#if EV_PROTOTYPES	598	#if EV_PROTOTYPES
…		…
461	/* feeds an event into a watcher as if the event actually occured */	600	/* feeds an event into a watcher as if the event actually occured */
462	/* accepts any ev_watcher type */	601	/* accepts any ev_watcher type */
463	void ev_feed_event (EV_P_ void *w, int revents);	602	void ev_feed_event (EV_P_ void *w, int revents);
464	void ev_feed_fd_event (EV_P_ int fd, int revents);	603	void ev_feed_fd_event (EV_P_ int fd, int revents);
465	void ev_feed_signal_event (EV_P_ int signum);	604	void ev_feed_signal_event (EV_P_ int signum);
		605	void ev_invoke (EV_P_ void *w, int revents);
		606	int ev_clear_pending (EV_P_ void *w);
466		607
467	void ev_io_start (EV_P_ ev_io *w);	608	void ev_io_start (EV_P_ ev_io *w);
468	void ev_io_stop (EV_P_ ev_io *w);	609	void ev_io_stop (EV_P_ ev_io *w);
469		610
470	void ev_timer_start (EV_P_ ev_timer *w);	611	void ev_timer_start (EV_P_ ev_timer *w);
…		…
490	void ev_stat_start (EV_P_ ev_stat *w);	631	void ev_stat_start (EV_P_ ev_stat *w);
491	void ev_stat_stop (EV_P_ ev_stat *w);	632	void ev_stat_stop (EV_P_ ev_stat *w);
492	void ev_stat_stat (EV_P_ ev_stat *w);	633	void ev_stat_stat (EV_P_ ev_stat *w);
493	# endif	634	# endif
494		635
		636	# if EV_IDLE_ENABLE
495	void ev_idle_start (EV_P_ ev_idle *w);	637	void ev_idle_start (EV_P_ ev_idle *w);
496	void ev_idle_stop (EV_P_ ev_idle *w);	638	void ev_idle_stop (EV_P_ ev_idle *w);
		639	# endif
497		640
498	void ev_prepare_start (EV_P_ ev_prepare *w);	641	void ev_prepare_start (EV_P_ ev_prepare *w);
499	void ev_prepare_stop (EV_P_ ev_prepare *w);	642	void ev_prepare_stop (EV_P_ ev_prepare *w);
500		643
501	void ev_check_start (EV_P_ ev_check *w);	644	void ev_check_start (EV_P_ ev_check *w);
…		…
511	void ev_embed_start (EV_P_ ev_embed *w);	654	void ev_embed_start (EV_P_ ev_embed *w);
512	void ev_embed_stop (EV_P_ ev_embed *w);	655	void ev_embed_stop (EV_P_ ev_embed *w);
513	void ev_embed_sweep (EV_P_ ev_embed *w);	656	void ev_embed_sweep (EV_P_ ev_embed *w);
514	# endif	657	# endif
515		658
		659	# if EV_ASYNC_ENABLE
		660	void ev_async_start (EV_P_ ev_async *w);
		661	void ev_async_stop (EV_P_ ev_async *w);
		662	void ev_async_send (EV_P_ ev_async *w);
		663	# endif
		664
516	#endif	665	#endif
517		666
518	#ifdef __cplusplus	667	#ifdef __cplusplus
519	}	668	}
520	#endif	669	#endif

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Comparing libev/ev.h (file contents): Revision 1.72 by root, Tue Nov 27 10:59:11 2007 UTC vs. Revision 1.116 by root, Wed Jul 8 02:46:05 2009 UTC

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Comparing libev/ev.h (file contents):
Revision 1.72 by root, Tue Nov 27 10:59:11 2007 UTC vs.
Revision 1.116 by root, Wed Jul 8 02:46:05 2009 UTC