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

Comparing libev/ev.h (file contents):
Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs.
Revision 1.132 by root, Wed Mar 10 08:19:39 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_IDLE_ENABLE
		70	# define EV_IDLE_ENABLE 1
		71	#endif
		72
		73	#ifndef EV_FORK_ENABLE
		74	# define EV_FORK_ENABLE 1
		75	#endif
		76
		77	#ifndef EV_SIGNAL_ENABLE
		78	# define EV_SIGNAL_ENABLE 1
		79	#endif
		80
		81	#ifndef EV_CHILD_ENABLE
		82	# ifdef _WIN32
		83	# define EV_CHILD_ENABLE 0
		84	# else
		85	# define EV_CHILD_ENABLE 1
		86	#endif
		87	#endif
		88
		89	#ifndef EV_ASYNC_ENABLE
		90	# define EV_ASYNC_ENABLE 1
		91	#endif
		92
59	#ifndef EV_EMBED_ENABLE	93	#ifndef EV_EMBED_ENABLE
60	# define EV_EMBED_ENABLE 1	94	# define EV_EMBED_ENABLE 1
61	#endif	95	#endif
62		96
		97	#ifndef EV_WALK_ENABLE
		98	# define EV_WALK_ENABLE 0 /* not yet */
		99	#endif
		100
		101	#ifndef EV_ATOMIC_T
		102	# include <signal.h>
		103	# define EV_ATOMIC_T sig_atomic_t volatile
		104	#endif
		105
63	/*****************************************************************************/	106	/*****************************************************************************/
64		107
		108	#if EV_CHILD_ENABLE && !EV_SIGNAL_ENABLE
		109	# undef EV_SIGNAL_ENABLE
		110	# define EV_SIGNAL_ENABLE 1
		111	#endif
		112
65	#if EV_STAT_ENABLE	113	#if EV_STAT_ENABLE
		114	# ifdef _WIN32
		115	# include <time.h>
		116	# include <sys/types.h>
		117	# endif
66	# include <sys/stat.h>	118	# include <sys/stat.h>
67	#endif	119	#endif
68		120
69	/* support multiple event loops? */	121	/* support multiple event loops? */
70	#if EV_MULTIPLICITY	122	#if EV_MULTIPLICITY
71	struct ev_loop;	123	struct ev_loop;
72	# define EV_P struct ev_loop *loop	124	# define EV_P struct ev_loop *loop
73	# define EV_P_ EV_P,	125	# define EV_P_ EV_P,
74	# define EV_A loop	126	# define EV_A loop
75	# define EV_A_ EV_A,	127	# define EV_A_ EV_A,
		128	# define EV_DEFAULT_UC ev_default_loop_uc ()
		129	# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
76	# define EV_DEFAULT_A ev_default_loop (0)	130	# define EV_DEFAULT ev_default_loop (0)
77	# define EV_DEFAULT_A_ EV_DEFAULT_A,	131	# define EV_DEFAULT_ EV_DEFAULT,
78	#else	132	#else
79	# define EV_P void	133	# define EV_P void
80	# define EV_P_	134	# define EV_P_
81	# define EV_A	135	# define EV_A
82	# define EV_A_	136	# define EV_A_
		137	# define EV_DEFAULT
83	# define EV_DEFAULT_A	138	# define EV_DEFAULT_
		139	# define EV_DEFAULT_UC
84	# define EV_DEFAULT_A_	140	# define EV_DEFAULT_UC_
85
86	# undef EV_EMBED_ENABLE	141	# undef EV_EMBED_ENABLE
87	#endif	142	#endif
88		143
		144	#if __STDC_VERSION__ >= 199901L \|\| __GNUC__ >= 3
		145	# define EV_INLINE static inline
		146	#else
		147	# define EV_INLINE static
		148	#endif
		149
		150	/*****************************************************************************/
		151
89	/* eventmask, revents, events... */	152	/* eventmask, revents, events... */
90	#define EV_UNDEF -1L /* guaranteed to be invalid */	153	#define EV_UNDEF -1 /* guaranteed to be invalid */
91	#define EV_NONE 0x00L /* no events */	154	#define EV_NONE 0x00 /* no events */
92	#define EV_READ 0x01L /* ev_io detected read will not block */	155	#define EV_READ 0x01 /* ev_io detected read will not block */
93	#define EV_WRITE 0x02L /* ev_io detected write will not block */	156	#define EV_WRITE 0x02 /* ev_io detected write will not block */
		157	#define EV__IOFDSET 0x80 /* internal use only */
		158	#define EV_IO EV_READ /* alias for type-detection */
94	#define EV_TIMEOUT 0x00000100L /* timer timed out */	159	#define EV_TIMEOUT 0x00000100 /* timer timed out */
		160	#define EV_TIMER EV_TIMEOUT /* alias for type-detection */
95	#define EV_PERIODIC 0x00000200L /* periodic timer timed out */	161	#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
96	#define EV_SIGNAL 0x00000400L /* signal was received */	162	#define EV_SIGNAL 0x00000400 /* signal was received */
		163	#define EV_CHILD 0x00000800 /* child/pid had status change */
		164	#define EV_STAT 0x00001000 /* stat data changed */
97	#define EV_IDLE 0x00000800L /* event loop is idling */	165	#define EV_IDLE 0x00002000 /* event loop is idling */
98	#define EV_PREPARE 0x00001000L /* event loop about to poll */	166	#define EV_PREPARE 0x00004000 /* event loop about to poll */
99	#define EV_CHECK 0x00002000L /* event loop finished poll */	167	#define EV_CHECK 0x00008000 /* event loop finished poll */
100	#define EV_CHILD 0x00004000L /* child/pid had status change */
101	#define EV_EMBED 0x00008000L /* embedded event loop needs sweep */	168	#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
102	#define EV_STAT 0x00010000L /* stat data changed */	169	#define EV_FORK 0x00020000 /* event loop resumed in child */
		170	#define EV_ASYNC 0x00040000 /* async intra-loop signal */
		171	#define EV_CUSTOM 0x01000000 /* for use by user code */
103	#define EV_ERROR 0x80000000L /* sent when an error occurs */	172	#define EV_ERROR 0x80000000 /* sent when an error occurs */
104		173
105	/* can be used to add custom fields to all watchers, while losing binary compatibility */	174	/* can be used to add custom fields to all watchers, while losing binary compatibility */
106	#ifndef EV_COMMON	175	#ifndef EV_COMMON
107	# define EV_COMMON void *data;	176	# define EV_COMMON void *data;
108	#endif	177	#endif
109	#ifndef EV_PROTOTYPES	178	#ifndef EV_PROTOTYPES
110	# define EV_PROTOTYPES 1	179	# define EV_PROTOTYPES 1
111	#endif	180	#endif
112		181
113	#define EV_VERSION_MAJOR 1	182	#define EV_VERSION_MAJOR 3
114	#define EV_VERSION_MINOR 1	183	#define EV_VERSION_MINOR 9
115		184
116	#ifndef EV_CB_DECLARE	185	#ifndef EV_CB_DECLARE
117	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);	186	# define EV_CB_DECLARE(type) void (cb)(EV_P_ struct type w, int revents);
118	#endif	187	#endif
119	#ifndef EV_CB_INVOKE	188	#ifndef EV_CB_INVOKE
120	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))	189	# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
121	#endif	190	#endif
122		191
123	/*	192	/*
124	* struct member types:	193	* struct member types:
125	* private: you can look at them, but not change them, and they might not mean anything to you.	194	* private: you may look at them, but not change them,
		195	* and they might not mean anything to you.
126	* ro: can be read anytime, but only changed when the watcher isn't active	196	* ro: can be read anytime, but only changed when the watcher isn't active.
127	* rw: can be read and modified anytime, even when the watcher is active	197	* rw: can be read and modified anytime, even when the watcher is active.
		198	*
		199	* some internal details that might be helpful for debugging:
		200	*
		201	* active is either 0, which means the watcher is not active,
		202	* or the array index of the watcher (periodics, timers)
		203	* or the array index + 1 (most other watchers)
		204	* or simply 1 for watchers that aren't in some array.
		205	* pending is either 0, in which case the watcher isn't,
		206	* or the array index + 1 in the pendings array.
128	*/	207	*/
		208
		209	#if EV_MINPRI == EV_MAXPRI
		210	# define EV_DECL_PRIORITY
		211	#else
		212	# define EV_DECL_PRIORITY int priority;
		213	#endif
129		214
130	/* shared by all watchers */	215	/* shared by all watchers */
131	#define EV_WATCHER(type) \	216	#define EV_WATCHER(type) \
132	int active; /* private */ \	217	int active; /* private */ \
133	int pending; /* private */ \	218	int pending; /* private */ \
134	int priority; /* private */ \	219	EV_DECL_PRIORITY /* private */ \
135	EV_COMMON /* rw */ \	220	EV_COMMON /* rw */ \
136	EV_CB_DECLARE (type) /* private */	221	EV_CB_DECLARE (type) /* private */
137		222
138	#define EV_WATCHER_LIST(type) \	223	#define EV_WATCHER_LIST(type) \
139	EV_WATCHER (type) \	224	EV_WATCHER (type) \
…		…
159	typedef struct ev_watcher_time	244	typedef struct ev_watcher_time
160	{	245	{
161	EV_WATCHER_TIME (ev_watcher_time)	246	EV_WATCHER_TIME (ev_watcher_time)
162	} ev_watcher_time;	247	} ev_watcher_time;
163		248
		249	/* invoked when fd is either EV_READable or EV_WRITEable */
		250	/* revent EV_READ, EV_WRITE */
		251	typedef struct ev_io
		252	{
		253	EV_WATCHER_LIST (ev_io)
		254
		255	int fd; /* ro */
		256	int events; /* ro */
		257	} ev_io;
		258
164	/* invoked after a specific time, repeatable (based on monotonic clock) */	259	/* invoked after a specific time, repeatable (based on monotonic clock) */
165	/* revent EV_TIMEOUT */	260	/* revent EV_TIMEOUT */
166	typedef struct ev_timer	261	typedef struct ev_timer
167	{	262	{
168	EV_WATCHER_TIME (ev_timer)	263	EV_WATCHER_TIME (ev_timer)
…		…
174	/* revent EV_PERIODIC */	269	/* revent EV_PERIODIC */
175	typedef struct ev_periodic	270	typedef struct ev_periodic
176	{	271	{
177	EV_WATCHER_TIME (ev_periodic)	272	EV_WATCHER_TIME (ev_periodic)
178		273
		274	ev_tstamp offset; /* rw */
179	ev_tstamp interval; /* rw */	275	ev_tstamp interval; /* rw */
180	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */	276	ev_tstamp (reschedule_cb)(struct ev_periodic w, ev_tstamp now); /* rw */
181	} ev_periodic;	277	} ev_periodic;
182		278
183	/* invoked when fd is either EV_READable or EV_WRITEable */
184	/* revent EV_READ, EV_WRITE */
185	typedef struct ev_io
186	{
187	EV_WATCHER_LIST (ev_io)
188
189	int fd; /* ro */
190	int events; /* ro */
191	} ev_io;
192
193	/* invoked when the given signal has been received */	279	/* invoked when the given signal has been received */
194	/* revent EV_SIGNAL */	280	/* revent EV_SIGNAL */
195	typedef struct ev_signal	281	typedef struct ev_signal
196	{	282	{
197	EV_WATCHER_LIST (ev_signal)	283	EV_WATCHER_LIST (ev_signal)
198		284
199	int signum; /* ro */	285	int signum; /* ro */
200	} ev_signal;	286	} ev_signal;
201		287
		288	/* invoked when sigchld is received and waitpid indicates the given pid */
		289	/* revent EV_CHILD */
		290	/* does not support priorities */
		291	typedef struct ev_child
		292	{
		293	EV_WATCHER_LIST (ev_child)
		294
		295	int flags; /* private */
		296	int pid; /* ro */
		297	int rpid; /* rw, holds the received pid */
		298	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
		299	} ev_child;
		300
		301	#if EV_STAT_ENABLE
		302	/* st_nlink = 0 means missing file or other error */
		303	# ifdef _WIN32
		304	typedef struct _stati64 ev_statdata;
		305	# else
		306	typedef struct stat ev_statdata;
		307	# endif
		308
		309	/* invoked each time the stat data changes for a given path */
		310	/* revent EV_STAT */
		311	typedef struct ev_stat
		312	{
		313	EV_WATCHER_LIST (ev_stat)
		314
		315	ev_timer timer; /* private */
		316	ev_tstamp interval; /* ro */
		317	const char path; / ro */
		318	ev_statdata prev; /* ro */
		319	ev_statdata attr; /* ro */
		320
		321	int wd; /* wd for inotify, fd for kqueue */
		322	} ev_stat;
		323	#endif
		324
		325	#if EV_IDLE_ENABLE
202	/* invoked when the nothing else needs to be done, keeps the process from blocking */	326	/* invoked when the nothing else needs to be done, keeps the process from blocking */
203	/* revent EV_IDLE */	327	/* revent EV_IDLE */
204	typedef struct ev_idle	328	typedef struct ev_idle
205	{	329	{
206	EV_WATCHER (ev_idle)	330	EV_WATCHER (ev_idle)
207	} ev_idle;	331	} ev_idle;
		332	#endif
208		333
209	/* invoked for each run of the mainloop, just before the blocking call */	334	/* invoked for each run of the mainloop, just before the blocking call */
210	/* you can still change events in any way you like */	335	/* you can still change events in any way you like */
211	/* revent EV_PREPARE */	336	/* revent EV_PREPARE */
212	typedef struct ev_prepare	337	typedef struct ev_prepare
…		…
219	typedef struct ev_check	344	typedef struct ev_check
220	{	345	{
221	EV_WATCHER (ev_check)	346	EV_WATCHER (ev_check)
222	} ev_check;	347	} ev_check;
223		348
224	/* invoked when sigchld is received and waitpid indicates the given pid */	349	#if EV_FORK_ENABLE
225	/* revent EV_CHILD */	350	/* the callback gets invoked before check in the child process when a fork was detected */
226	/* does not support priorities */
227	typedef struct ev_child	351	typedef struct ev_fork
228	{	352	{
229	EV_WATCHER_LIST (ev_child)	353	EV_WATCHER (ev_fork)
230		354	} ev_fork;
231	int pid; /* ro */	355	#endif
232	int rpid; /* rw, holds the received pid */
233	int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
234	} ev_child;
235		356
236	#if EV_EMBED_ENABLE	357	#if EV_EMBED_ENABLE
237	/* used to embed an event loop inside another */	358	/* used to embed an event loop inside another */
238	/* the callback gets invoked when the event loop has handled events, and can be 0 */	359	/* the callback gets invoked when the event loop has handled events, and can be 0 */
239	typedef struct ev_embed	360	typedef struct ev_embed
240	{	361	{
241	EV_WATCHER (ev_embed)	362	EV_WATCHER (ev_embed)
242		363
243	ev_io io; /* private */
244	struct ev_loop loop; / ro */	364	struct ev_loop other; / ro */
		365	ev_io io; /* private */
		366	ev_prepare prepare; /* private */
		367	ev_check check; /* unused */
		368	ev_timer timer; /* unused */
		369	ev_periodic periodic; /* unused */
		370	ev_idle idle; /* unused */
		371	ev_fork fork; /* private */
245	} ev_embed;	372	} ev_embed;
246	#endif	373	#endif
247		374
248	#if EV_STAT_ENABLE	375	#if EV_ASYNC_ENABLE
249	/* st_nlink = 0 means missing file or other error */	376	/* invoked when somebody calls ev_async_send on the watcher */
250	typedef struct stat ev_statdata;
251
252	/* invoked each time the stat data changes for a given path */
253	/* revent EV_STAT */	377	/* revent EV_ASYNC */
254	typedef struct ev_stat	378	typedef struct ev_async
255	{	379	{
256	EV_WATCHER (ev_stat)	380	EV_WATCHER (ev_async)
257		381
258	ev_timer timer; /* private */	382	EV_ATOMIC_T sent; /* private */
259	ev_tstamp interval; /* rw */	383	} ev_async;
260	const char path; / ro */	384
261	ev_statdata prev; /* ro */	385	# define ev_async_pending(w) (+(w)->sent)
262	ev_statdata attr; /* ro */
263	} ev_stat;
264	#endif	386	#endif
265		387
266	/* the presence of this union forces similar struct layout */	388	/* the presence of this union forces similar struct layout */
267	union ev_any_watcher	389	union ev_any_watcher
268	{	390	{
…		…
270	struct ev_watcher_list wl;	392	struct ev_watcher_list wl;
271		393
272	struct ev_io io;	394	struct ev_io io;
273	struct ev_timer timer;	395	struct ev_timer timer;
274	struct ev_periodic periodic;	396	struct ev_periodic periodic;
		397	struct ev_signal signal;
		398	struct ev_child child;
		399	#if EV_STAT_ENABLE
		400	struct ev_stat stat;
		401	#endif
		402	#if EV_IDLE_ENABLE
275	struct ev_idle idle;	403	struct ev_idle idle;
		404	#endif
276	struct ev_prepare prepare;	405	struct ev_prepare prepare;
277	struct ev_check check;	406	struct ev_check check;
278	struct ev_signal signal;	407	#if EV_FORK_ENABLE
279	struct ev_child child;	408	struct ev_fork fork;
		409	#endif
280	#if EV_EMBED_ENABLE	410	#if EV_EMBED_ENABLE
281	struct ev_embed embed;	411	struct ev_embed embed;
282	#endif	412	#endif
283	#if EV_STAT_ENABLE	413	#if EV_ASYNC_ENABLE
284	struct ev_stat stat;	414	struct ev_async async;
285	#endif	415	#endif
286	};	416	};
287		417
288	/* bits for ev_default_loop and ev_loop_new */	418	/* bits for ev_default_loop and ev_loop_new */
289	/* the default */	419	/* the default */
290	#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */	420	#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
291	/* flag bits */	421	/* flag bits */
292	#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */	422	#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
		423	#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
		424	/* debugging/feature disable */
		425	#define EVFLAG_NOINOTIFY 0x00100000U /* do not attempt to use inotify */
		426	#define EVFLAG_NOSIGFD 0 /* compatibility to pre-3.9 */
		427	#define EVFLAG_SIGNALFD 0x00200000U /* attempt to use signalfd */
293	/* method bits to be ored together */	428	/* method bits to be ored together */
294	#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */	429	#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
295	#define EVBACKEND_POLL 0x00000002UL /* !win */	430	#define EVBACKEND_POLL 0x00000002U /* !win */
296	#define EVBACKEND_EPOLL 0x00000004UL /* linux */	431	#define EVBACKEND_EPOLL 0x00000004U /* linux */
297	#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */	432	#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
298	#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 / / NYI */	433	#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 / / NYI */
299	#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */	434	#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
		435	#define EVBACKEND_ALL 0x0000003FU
300		436
301	#if EV_PROTOTYPES	437	#if EV_PROTOTYPES
302	int ev_version_major (void);	438	int ev_version_major (void);
303	int ev_version_minor (void);	439	int ev_version_minor (void);
304		440
305	unsigned int ev_supported_backends (void);	441	unsigned int ev_supported_backends (void);
306	unsigned int ev_recommended_backends (void);	442	unsigned int ev_recommended_backends (void);
307	unsigned int ev_embeddable_backends (void);	443	unsigned int ev_embeddable_backends (void);
308		444
309	ev_tstamp ev_time (void);	445	ev_tstamp ev_time (void);
		446	void ev_sleep (ev_tstamp delay); /* sleep for a while */
310		447
311	/* Sets the allocation function to use, works like realloc.	448	/* Sets the allocation function to use, works like realloc.
312	* It is used to allocate and free memory.	449	* It is used to allocate and free memory.
313	* If it returns zero when memory needs to be allocated, the library might abort	450	* If it returns zero when memory needs to be allocated, the library might abort
314	* or take some potentially destructive action.	451	* or take some potentially destructive action.
…		…
320	* retryable syscall error	457	* retryable syscall error
321	* (such as failed select, poll, epoll_wait)	458	* (such as failed select, poll, epoll_wait)
322	*/	459	*/
323	void ev_set_syserr_cb (void (cb)(const char msg));	460	void ev_set_syserr_cb (void (cb)(const char msg));
324		461
325	# if EV_MULTIPLICITY	462	#if EV_MULTIPLICITY
		463	EV_INLINE struct ev_loop *
		464	ev_default_loop_uc (void)
		465	{
		466	extern struct ev_loop *ev_default_loop_ptr;
		467
		468	return ev_default_loop_ptr;
		469	}
		470
326	/* the default loop is the only one that handles signals and child watchers */	471	/* the default loop is the only one that handles signals and child watchers */
327	/* you can call this as often as you like */	472	/* you can call this as often as you like */
328	static struct ev_loop *	473	EV_INLINE struct ev_loop *
329	ev_default_loop (unsigned int flags)	474	ev_default_loop (unsigned int flags)
330	{	475	{
331	extern struct ev_loop *ev_default_loop_ptr;	476	struct ev_loop *loop = ev_default_loop_uc ();
		477
		478	if (!loop)
		479	{
332	extern struct ev_loop *ev_default_loop_init (unsigned int flags);	480	extern struct ev_loop *ev_default_loop_init (unsigned int flags);
333		481
334	if (!ev_default_loop_ptr)
335	ev_default_loop_init (flags);	482	loop = ev_default_loop_init (flags);
		483	}
336		484
337	return ev_default_loop_ptr;	485	return loop;
338	}	486	}
339		487
340	/* create and destroy alternative loops that don't handle signals */	488	/* create and destroy alternative loops that don't handle signals */
341	struct ev_loop *ev_loop_new (unsigned int flags);	489	struct ev_loop *ev_loop_new (unsigned int flags);
342	void ev_loop_destroy (EV_P);	490	void ev_loop_destroy (EV_P);
343	void ev_loop_fork (EV_P);	491	void ev_loop_fork (EV_P);
344		492
345	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */	493	ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
346		494
347	# else	495	#else
348		496
349	int ev_default_loop (unsigned int flags); /* returns true when successful */	497	int ev_default_loop (unsigned int flags); /* returns true when successful */
350		498
351	static ev_tstamp	499	EV_INLINE ev_tstamp
352	ev_now (void)	500	ev_now (void)
353	{	501	{
354	extern ev_tstamp ev_rt_now;	502	extern ev_tstamp ev_rt_now;
355		503
356	return ev_rt_now;	504	return ev_rt_now;
357	}	505	}
		506	#endif /* multiplicity */
		507
		508	EV_INLINE int
		509	ev_is_default_loop (EV_P)
		510	{
		511	#if EV_MULTIPLICITY
		512	extern struct ev_loop *ev_default_loop_ptr;
		513
		514	return !!(EV_A == ev_default_loop_ptr);
		515	#else
		516	return 1;
358	# endif	517	#endif
		518	}
359		519
360	void ev_default_destroy (void); /* destroy the default loop */	520	void ev_default_destroy (void); /* destroy the default loop */
361	/* this needs to be called after fork, to duplicate the default loop */	521	/* this needs to be called after fork, to duplicate the default loop */
362	/* if you create alternative loops you have to call ev_loop_fork on them */	522	/* if you create alternative loops you have to call ev_loop_fork on them */
363	/* you can call it in either the parent or the child */	523	/* you can call it in either the parent or the child */
364	/* you can actually call it at any time, anywhere :) */	524	/* you can actually call it at any time, anywhere :) */
365	void ev_default_fork (void);	525	void ev_default_fork (void);
366		526
367	unsigned int ev_backend (EV_P);	527	unsigned int ev_backend (EV_P); /* backend in use by loop */
		528
		529	void ev_now_update (EV_P); /* update event loop time */
		530
		531	#if EV_WALK_ENABLE
		532	/* walk (almost) all watchers in the loop of a given type, invoking the */
		533	/* callback on every such watcher. The callback might stop the watcher, */
		534	/* but do nothing else with the loop */
		535	void ev_walk (EV_P_ int types, void (cb)(EV_P_ int type, void w));
368	#endif	536	#endif
		537
		538	#endif /* prototypes */
369		539
370	#define EVLOOP_NONBLOCK 1 /* do not block/wait */	540	#define EVLOOP_NONBLOCK 1 /* do not block/wait */
371	#define EVLOOP_ONESHOT 2 /* block once only */	541	#define EVLOOP_ONESHOT 2 /* block once only */
372	#define EVUNLOOP_CANCEL 0 /* undo unloop */	542	#define EVUNLOOP_CANCEL 0 /* undo unloop */
373	#define EVUNLOOP_ONE 1 /* unloop once */	543	#define EVUNLOOP_ONE 1 /* unloop once */
…		…
377	void ev_loop (EV_P_ int flags);	547	void ev_loop (EV_P_ int flags);
378	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 */	548	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 */
379		549
380	/*	550	/*
381	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher	551	* ref/unref can be used to add or remove a refcount on the mainloop. every watcher
382	* keeps one reference. if you have a long-runing watcher you never unregister that	552	* keeps one reference. if you have a long-running watcher you never unregister that
383	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.	553	* should not keep ev_loop from running, unref() after starting, and ref() before stopping.
384	*/	554	*/
385	void ev_ref (EV_P);	555	void ev_ref (EV_P);
386	void ev_unref (EV_P);	556	void ev_unref (EV_P);
387		557
		558	/*
388	/* convinience function, wait for a single event, without registering an event watcher */	559	* convenience function, wait for a single event, without registering an event watcher
389	/* if timeout is < 0, do wait indefinitely */	560	* if timeout is < 0, do wait indefinitely
		561	*/
390	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);	562	void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg);
		563
		564	# if EV_MINIMAL < 2
		565	unsigned int ev_loop_count (EV_P); /* number of loop iterations */
		566	unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
		567	void ev_loop_verify (EV_P); /* abort if loop data corrupted */
		568
		569	void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		570	void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
		571
		572	/* advanced stuff for threading etc. support, see docs */
		573	void ev_set_userdata (EV_P_ void *data);
		574	void *ev_userdata (EV_P);
		575	void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
		576	void ev_set_loop_release_cb (EV_P_ void (release)(EV_P), void (acquire)(EV_P));
		577
		578	unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
		579	void ev_invoke_pending (EV_P); /* invoke all pending watchers */
		580
		581	/*
		582	* stop/start the timer handling.
		583	*/
		584	void ev_suspend (EV_P);
		585	void ev_resume (EV_P);
		586	#endif
		587
391	#endif	588	#endif
392		589
393	/* these may evaluate ev multiple times, and the other arguments at most once */	590	/* these may evaluate ev multiple times, and the other arguments at most once */
394	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */	591	/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
395	#define ev_init(ev,cb_) do { \	592	#define ev_init(ev,cb_) do { \
396	((ev_watcher )(void )(ev))->active = \	593	((ev_watcher )(void )(ev))->active = \
397	((ev_watcher )(void )(ev))->pending = \	594	((ev_watcher )(void )(ev))->pending = 0; \
398	((ev_watcher )(void )(ev))->priority = 0; \	595	ev_set_priority ((ev), 0); \
399	ev_set_cb ((ev), cb_); \	596	ev_set_cb ((ev), cb_); \
400	} while (0)	597	} while (0)
401		598
402	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)	599	#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) \| EV__IOFDSET; } while (0)
403	#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)	600	#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
404	#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)	601	#define ev_periodic_set(ev,ofs_,ival_,rcb_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb = (rcb_); } while (0)
405	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)	602	#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
		603	#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
		604	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
406	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */	605	#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
407	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */	606	#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
408	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */	607	#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
409	#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
410	#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)	608	#define ev_embed_set(ev,other_) do { (ev)->other = (other_); } while (0)
411	#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0)	609	#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
		610	#define ev_async_set(ev) do { (ev)->sent = 0; } while (0)
412		611
413	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)	612	#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
414	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)	613	#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
415	#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)	614	#define ev_periodic_init(ev,cb,ofs,ival,rcb) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(ofs),(ival),(rcb)); } while (0)
416	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)	615	#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
		616	#define ev_child_init(ev,cb,pid,trace) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid),(trace)); } while (0)
		617	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_stat_set ((ev),(path),(interval)); } while (0)
417	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)	618	#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
418	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)	619	#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
419	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)	620	#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
420	#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
421	#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)	621	#define ev_embed_init(ev,cb,other) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(other)); } while (0)
422	#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)	622	#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
		623	#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
423		624
424	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */	625	#define ev_is_pending(ev) (0 + ((ev_watcher )(void )(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
425	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */	626	#define ev_is_active(ev) (0 + ((ev_watcher )(void )(ev))->active) /* ro, true when the watcher has been started */
426		627
427	#define ev_priority(ev) ((ev_watcher )(void )(ev))->priority /* rw */
428	#define ev_cb(ev) (ev)->cb /* rw */	628	#define ev_cb(ev) (ev)->cb /* rw */
		629
		630	#if EV_MINPRI == EV_MAXPRI
		631	# define ev_priority(ev) ((ev), EV_MINPRI)
429	#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)	632	# define ev_set_priority(ev,pri) ((ev), (pri))
		633	#else
		634	# define ev_priority(ev) (+(((ev_watcher )(void )(ev))->priority))
		635	# define ev_set_priority(ev,pri) ( (ev_watcher )(void )(ev))->priority = (pri)
		636	#endif
		637
		638	#define ev_periodic_at(ev) (+((ev_watcher_time *)(ev))->at)
430		639
431	#ifndef ev_set_cb	640	#ifndef ev_set_cb
432	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)	641	# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
433	#endif	642	#endif
434		643
435	/* stopping (enabling, adding) a watcher does nothing if it is already running */	644	/* stopping (enabling, adding) a watcher does nothing if it is already running */
436	/* stopping (disabling, deleting) a watcher does nothing unless its already running */	645	/* stopping (disabling, deleting) a watcher does nothing unless its already running */
437	#if EV_PROTOTYPES	646	#if EV_PROTOTYPES
438		647
439	/* feeds an event into a watcher as if the event actually occured */	648	/* feeds an event into a watcher as if the event actually occured */
440	/* accepts any ev_watcher type */	649	/* accepts any ev_watcher type */
441	void ev_feed_event (EV_P_ void *w, int revents);	650	void ev_feed_event (EV_P_ void *w, int revents);
442	void ev_feed_fd_event (EV_P_ int fd, int revents);	651	void ev_feed_fd_event (EV_P_ int fd, int revents);
		652	#if EV_SIGNAL_ENABLE
443	void ev_feed_signal_event (EV_P_ int signum);	653	void ev_feed_signal_event (EV_P_ int signum);
		654	#endif
		655	void ev_invoke (EV_P_ void *w, int revents);
		656	int ev_clear_pending (EV_P_ void *w);
444		657
445	void ev_io_start (EV_P_ ev_io *w);	658	void ev_io_start (EV_P_ ev_io *w);
446	void ev_io_stop (EV_P_ ev_io *w);	659	void ev_io_stop (EV_P_ ev_io *w);
447		660
448	void ev_timer_start (EV_P_ ev_timer *w);	661	void ev_timer_start (EV_P_ ev_timer *w);
449	void ev_timer_stop (EV_P_ ev_timer *w);	662	void ev_timer_stop (EV_P_ ev_timer *w);
450	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */	663	/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
451	void ev_timer_again (EV_P_ ev_timer *w);	664	void ev_timer_again (EV_P_ ev_timer *w);
		665	/* return remaining time */
		666	ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
452		667
453	#if EV_PERIODIC_ENABLE	668	#if EV_PERIODIC_ENABLE
454	void ev_periodic_start (EV_P_ ev_periodic *w);	669	void ev_periodic_start (EV_P_ ev_periodic *w);
455	void ev_periodic_stop (EV_P_ ev_periodic *w);	670	void ev_periodic_stop (EV_P_ ev_periodic *w);
456	void ev_periodic_again (EV_P_ ev_periodic *w);	671	void ev_periodic_again (EV_P_ ev_periodic *w);
457	#endif	672	#endif
458		673
		674	/* only supported in the default loop */
		675	#if EV_SIGNAL_ENABLE
		676	void ev_signal_start (EV_P_ ev_signal *w);
		677	void ev_signal_stop (EV_P_ ev_signal *w);
		678	#endif
		679
		680	/* only supported in the default loop */
		681	# if EV_CHILD_ENABLE
		682	void ev_child_start (EV_P_ ev_child *w);
		683	void ev_child_stop (EV_P_ ev_child *w);
		684	# endif
		685
		686	# if EV_STAT_ENABLE
		687	void ev_stat_start (EV_P_ ev_stat *w);
		688	void ev_stat_stop (EV_P_ ev_stat *w);
		689	void ev_stat_stat (EV_P_ ev_stat *w);
		690	# endif
		691
		692	# if EV_IDLE_ENABLE
459	void ev_idle_start (EV_P_ ev_idle *w);	693	void ev_idle_start (EV_P_ ev_idle *w);
460	void ev_idle_stop (EV_P_ ev_idle *w);	694	void ev_idle_stop (EV_P_ ev_idle *w);
		695	# endif
461		696
462	void ev_prepare_start (EV_P_ ev_prepare *w);	697	void ev_prepare_start (EV_P_ ev_prepare *w);
463	void ev_prepare_stop (EV_P_ ev_prepare *w);	698	void ev_prepare_stop (EV_P_ ev_prepare *w);
464		699
465	void ev_check_start (EV_P_ ev_check *w);	700	void ev_check_start (EV_P_ ev_check *w);
466	void ev_check_stop (EV_P_ ev_check *w);	701	void ev_check_stop (EV_P_ ev_check *w);
467		702
468	/* only supported in the default loop */	703	# if EV_FORK_ENABLE
469	void ev_signal_start (EV_P_ ev_signal *w);
470	void ev_signal_stop (EV_P_ ev_signal *w);
471
472	/* only supported in the default loop */
473	void ev_child_start (EV_P_ ev_child *w);	704	void ev_fork_start (EV_P_ ev_fork *w);
474	void ev_child_stop (EV_P_ ev_child *w);	705	void ev_fork_stop (EV_P_ ev_fork *w);
		706	# endif
475		707
476	# if EV_EMBED_ENABLE	708	# if EV_EMBED_ENABLE
477	/* only supported when loop to be embedded is in fact embeddable */	709	/* only supported when loop to be embedded is in fact embeddable */
478	void ev_embed_start (EV_P_ ev_embed *w);	710	void ev_embed_start (EV_P_ ev_embed *w);
479	void ev_embed_stop (EV_P_ ev_embed *w);	711	void ev_embed_stop (EV_P_ ev_embed *w);
480	void ev_embed_sweep (EV_P_ ev_embed *w);	712	void ev_embed_sweep (EV_P_ ev_embed *w);
481	# endif	713	# endif
482		714
483	# if EV_STAT_ENABLE	715	# if EV_ASYNC_ENABLE
484	void ev_stat_start (EV_P_ ev_stat *w);	716	void ev_async_start (EV_P_ ev_async *w);
485	void ev_stat_stop (EV_P_ ev_stat *w);	717	void ev_async_stop (EV_P_ ev_async *w);
486	void ev_stat_stat (EV_P_ ev_stat *w);	718	void ev_async_send (EV_P_ ev_async *w);
487	# endif	719	# endif
488		720
489	#endif	721	#endif
490		722
491	#ifdef __cplusplus	723	#ifdef __cplusplus

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.h (file contents): Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs. Revision 1.132 by root, Wed Mar 10 08:19:39 2010 UTC

Diff Legend

Comparing libev/ev.h (file contents):
Revision 1.69 by root, Mon Nov 26 19:49:36 2007 UTC vs.
Revision 1.132 by root, Wed Mar 10 08:19:39 2010 UTC