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

Comparing libev/ev.c (file contents):
Revision 1.8 by root, Wed Oct 31 00:32:33 2007 UTC vs.
Revision 1.36 by root, Thu Nov 1 13:11:11 2007 UTC

…		…
		1	/*
		2	* libev event processing core, watcher management
		3	*
		4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
		5	* All rights reserved.
		6	*
		7	* Redistribution and use in source and binary forms, with or without
		8	* modification, are permitted provided that the following conditions are
		9	* met:
		10	*
		11	* * Redistributions of source code must retain the above copyright
		12	* notice, this list of conditions and the following disclaimer.
		13	*
		14	* * Redistributions in binary form must reproduce the above
		15	* copyright notice, this list of conditions and the following
		16	* disclaimer in the documentation and/or other materials provided
		17	* with the distribution.
		18	*
		19	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		20	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		21	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		22	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		23	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		24	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		25	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		30	*/
		31	#if EV_USE_CONFIG_H
		32	# include "config.h"
		33	#endif
		34
1	#include <math.h>	35	#include <math.h>
2	#include <stdlib.h>	36	#include <stdlib.h>
3	#include <unistd.h>	37	#include <unistd.h>
4	#include <fcntl.h>	38	#include <fcntl.h>
5	#include <signal.h>	39	#include <signal.h>
		40	#include <stddef.h>
6		41
7	#include <stdio.h>	42	#include <stdio.h>
8		43
9	#include <assert.h>	44	#include <assert.h>
10	#include <errno.h>	45	#include <errno.h>
		46	#include <sys/types.h>
		47	#include <sys/wait.h>
11	#include <sys/time.h>	48	#include <sys/time.h>
12	#include <time.h>	49	#include <time.h>
13		50
		51	#ifndef EV_USE_MONOTONIC
14	#ifdef CLOCK_MONOTONIC	52	# ifdef CLOCK_MONOTONIC
15	# define HAVE_MONOTONIC 1	53	# define EV_USE_MONOTONIC 1
16	#endif	54	# endif
		55	#endif
17		56
18	#define HAVE_REALTIME 1	57	#ifndef EV_USE_SELECT
19	#define HAVE_EPOLL 1
20	#define HAVE_SELECT 1	58	# define EV_USE_SELECT 1
		59	#endif
		60
		61	#ifndef EV_USE_EPOLL
		62	# define EV_USE_EPOLL 0
		63	#endif
		64
		65	#ifndef CLOCK_REALTIME
		66	# define EV_USE_REALTIME 0
		67	#endif
		68	#ifndef EV_USE_REALTIME
		69	# define EV_USE_REALTIME 1 /* posix requirement, but might be slower */
		70	#endif
21		71
22	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	72	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
23	#define MAX_BLOCKTIME 60.	73	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */
		74	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
		75	#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
24		76
25	#include "ev.h"	77	#include "ev.h"
26		78
27	struct ev_watcher {	79	typedef struct ev_watcher *W;
28	EV_WATCHER (ev_watcher);
29	};
30
31	struct ev_watcher_list {	80	typedef struct ev_watcher_list *WL;
32	EV_WATCHER_LIST (ev_watcher_list);	81	typedef struct ev_watcher_time *WT;
33	};
34		82
35	static ev_tstamp now, diff; /* monotonic clock */	83	static ev_tstamp now, diff; /* monotonic clock */
36	ev_tstamp ev_now;	84	ev_tstamp ev_now;
37	int ev_method;	85	int ev_method;
38		86
45	/*****************************************************************************/	93	/*****************************************************************************/
46		94
47	ev_tstamp	95	ev_tstamp
48	ev_time (void)	96	ev_time (void)
49	{	97	{
50	#if HAVE_REALTIME	98	#if EV_USE_REALTIME
51	struct timespec ts;	99	struct timespec ts;
52	clock_gettime (CLOCK_REALTIME, &ts);	100	clock_gettime (CLOCK_REALTIME, &ts);
53	return ts.tv_sec + ts.tv_nsec * 1e-9;	101	return ts.tv_sec + ts.tv_nsec * 1e-9;
54	#else	102	#else
55	struct timeval tv;	103	struct timeval tv;
…		…
59	}	107	}
60		108
61	static ev_tstamp	109	static ev_tstamp
62	get_clock (void)	110	get_clock (void)
63	{	111	{
64	#if HAVE_MONOTONIC	112	#if EV_USE_MONOTONIC
65	if (have_monotonic)	113	if (have_monotonic)
66	{	114	{
67	struct timespec ts;	115	struct timespec ts;
68	clock_gettime (CLOCK_MONOTONIC, &ts);	116	clock_gettime (CLOCK_MONOTONIC, &ts);
69	return ts.tv_sec + ts.tv_nsec * 1e-9;	117	return ts.tv_sec + ts.tv_nsec * 1e-9;
…		…
71	#endif	119	#endif
72		120
73	return ev_time ();	121	return ev_time ();
74	}	122	}
75		123
		124	#define array_roundsize(base,n) ((n) \| 4 & ~3)
		125
76	#define array_needsize(base,cur,cnt,init) \	126	#define array_needsize(base,cur,cnt,init) \
77	if ((cnt) > cur) \	127	if ((cnt) > cur) \
78	{ \	128	{ \
79	int newcnt = cur ? cur << 1 : 16; \	129	int newcnt = cur; \
80	fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\	130	do \
		131	{ \
		132	newcnt = array_roundsize (base, newcnt << 1); \
		133	} \
		134	while ((cnt) > newcnt); \
		135	\
81	base = realloc (base, sizeof (base) (newcnt)); \	136	base = realloc (base, sizeof (base) (newcnt)); \
82	init (base + cur, newcnt - cur); \	137	init (base + cur, newcnt - cur); \
83	cur = newcnt; \	138	cur = newcnt; \
84	}	139	}
85		140
86	/*****************************************************************************/	141	/*****************************************************************************/
87		142
88	typedef struct	143	typedef struct
89	{	144	{
90	struct ev_io *head;	145	struct ev_io *head;
91	unsigned char wev, rev; /* want, received event set */	146	unsigned char events;
		147	unsigned char reify;
92	} ANFD;	148	} ANFD;
93		149
94	static ANFD *anfds;	150	static ANFD *anfds;
95	static int anfdmax;	151	static int anfdmax;
96		152
97	static int *fdchanges;
98	static int fdchangemax, fdchangecnt;
99
100	static void	153	static void
101	anfds_init (ANFD *base, int count)	154	anfds_init (ANFD *base, int count)
102	{	155	{
103	while (count--)	156	while (count--)
104	{	157	{
105	base->head = 0;	158	base->head = 0;
106	base->wev = base->rev = EV_NONE;	159	base->events = EV_NONE;
		160	base->reify = 0;
		161
107	++base;	162	++base;
108	}	163	}
109	}	164	}
110		165
111	typedef struct	166	typedef struct
112	{	167	{
113	struct ev_watcher *w;	168	W w;
114	int events;	169	int events;
115	} ANPENDING;	170	} ANPENDING;
116		171
117	static ANPENDING *pendings;	172	static ANPENDING *pendings;
118	static int pendingmax, pendingcnt;	173	static int pendingmax, pendingcnt;
119		174
120	static void	175	static void
121	event (struct ev_watcher *w, int events)	176	event (W w, int events)
122	{	177	{
		178	if (w->pending)
		179	{
		180	pendings [w->pending - 1].events \|= events;
		181	return;
		182	}
		183
123	w->pending = ++pendingcnt;	184	w->pending = ++pendingcnt;
124	array_needsize (pendings, pendingmax, pendingcnt, );	185	array_needsize (pendings, pendingmax, pendingcnt, );
125	pendings [pendingcnt - 1].w = w;	186	pendings [pendingcnt - 1].w = w;
126	pendings [pendingcnt - 1].events = events;	187	pendings [pendingcnt - 1].events = events;
127	}	188	}
128		189
129	static void	190	static void
		191	queue_events (W *events, int eventcnt, int type)
		192	{
		193	int i;
		194
		195	for (i = 0; i < eventcnt; ++i)
		196	event (events [i], type);
		197	}
		198
		199	static void
130	fd_event (int fd, int events)	200	fd_event (int fd, int events)
131	{	201	{
132	ANFD *anfd = anfds + fd;	202	ANFD *anfd = anfds + fd;
133	struct ev_io *w;	203	struct ev_io *w;
134		204
135	for (w = anfd->head; w; w = w->next)	205	for (w = anfd->head; w; w = w->next)
136	{	206	{
137	int ev = w->events & events;	207	int ev = w->events & events;
138		208
139	if (ev)	209	if (ev)
140	event ((struct ev_watcher *)w, ev);	210	event ((W)w, ev);
		211	}
		212	}
		213
		214	/*****************************************************************************/
		215
		216	static int *fdchanges;
		217	static int fdchangemax, fdchangecnt;
		218
		219	static void
		220	fd_reify (void)
		221	{
		222	int i;
		223
		224	for (i = 0; i < fdchangecnt; ++i)
141	}	225	{
142	}	226	int fd = fdchanges [i];
		227	ANFD *anfd = anfds + fd;
		228	struct ev_io *w;
143		229
144	/*****************************************************************************/	230	int events = 0;
145		231
		232	for (w = anfd->head; w; w = w->next)
		233	events \|= w->events;
		234
		235	anfd->reify = 0;
		236
		237	if (anfd->events != events)
		238	{
		239	method_modify (fd, anfd->events, events);
		240	anfd->events = events;
		241	}
		242	}
		243
		244	fdchangecnt = 0;
		245	}
		246
		247	static void
		248	fd_change (int fd)
		249	{
		250	if (anfds [fd].reify \|\| fdchangecnt < 0)
		251	return;
		252
		253	anfds [fd].reify = 1;
		254
		255	++fdchangecnt;
		256	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
		257	fdchanges [fdchangecnt - 1] = fd;
		258	}
		259
		260	/* called on EBADF to verify fds */
		261	static void
		262	fd_recheck (void)
		263	{
		264	int fd;
		265
		266	for (fd = 0; fd < anfdmax; ++fd)
		267	if (anfds [fd].events)
		268	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
		269	while (anfds [fd].head)
		270	{
		271	ev_io_stop (anfds [fd].head);
		272	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);
		273	}
		274	}
		275
		276	/*****************************************************************************/
		277
146	static struct ev_timer **atimers;	278	static struct ev_timer **timers;
147	static int atimermax, atimercnt;	279	static int timermax, timercnt;
148		280
149	static struct ev_timer **rtimers;	281	static struct ev_periodic **periodics;
150	static int rtimermax, rtimercnt;	282	static int periodicmax, periodiccnt;
151		283
152	static void	284	static void
153	upheap (struct ev_timer **timers, int k)	285	upheap (WT *timers, int k)
154	{	286	{
155	struct ev_timer *w = timers [k];	287	WT w = timers [k];
156		288
157	while (k && timers [k >> 1]->at > w->at)	289	while (k && timers [k >> 1]->at > w->at)
158	{	290	{
159	timers [k] = timers [k >> 1];	291	timers [k] = timers [k >> 1];
160	timers [k]->active = k + 1;	292	timers [k]->active = k + 1;
…		…
165	timers [k]->active = k + 1;	297	timers [k]->active = k + 1;
166		298
167	}	299	}
168		300
169	static void	301	static void
170	downheap (struct ev_timer **timers, int N, int k)	302	downheap (WT *timers, int N, int k)
171	{	303	{
172	struct ev_timer *w = timers [k];	304	WT w = timers [k];
173		305
174	while (k < (N >> 1))	306	while (k < (N >> 1))
175	{	307	{
176	int j = k << 1;	308	int j = k << 1;
177		309
…		…
193	/*****************************************************************************/	325	/*****************************************************************************/
194		326
195	typedef struct	327	typedef struct
196	{	328	{
197	struct ev_signal *head;	329	struct ev_signal *head;
198	sig_atomic_t gotsig;	330	sig_atomic_t volatile gotsig;
199	} ANSIG;	331	} ANSIG;
200		332
201	static ANSIG *signals;	333	static ANSIG *signals;
202	static int signalmax;	334	static int signalmax;
203		335
204	static int sigpipe [2];	336	static int sigpipe [2];
205	static sig_atomic_t gotsig;	337	static sig_atomic_t volatile gotsig;
206	static struct ev_io sigev;	338	static struct ev_io sigev;
207		339
208	static void	340	static void
209	signals_init (ANSIG *base, int count)	341	signals_init (ANSIG *base, int count)
210	{	342	{
211	while (count--)	343	while (count--)
212	{	344	{
213	base->head = 0;	345	base->head = 0;
214	base->gotsig = 0;	346	base->gotsig = 0;
		347
215	++base;	348	++base;
216	}	349	}
217	}	350	}
218		351
219	static void	352	static void
…		…
222	signals [signum - 1].gotsig = 1;	355	signals [signum - 1].gotsig = 1;
223		356
224	if (!gotsig)	357	if (!gotsig)
225	{	358	{
226	gotsig = 1;	359	gotsig = 1;
227	write (sigpipe [1], &gotsig, 1);	360	write (sigpipe [1], &signum, 1);
228	}	361	}
229	}	362	}
230		363
231	static void	364	static void
232	sigcb (struct ev_io *iow, int revents)	365	sigcb (struct ev_io *iow, int revents)
233	{	366	{
234	struct ev_signal *w;	367	struct ev_signal *w;
235	int sig;	368	int sig;
236		369
		370	read (sigpipe [0], &revents, 1);
237	gotsig = 0;	371	gotsig = 0;
238	read (sigpipe [0], &revents, 1);
239		372
240	for (sig = signalmax; sig--; )	373	for (sig = signalmax; sig--; )
241	if (signals [sig].gotsig)	374	if (signals [sig].gotsig)
242	{	375	{
243	signals [sig].gotsig = 0;	376	signals [sig].gotsig = 0;
244		377
245	for (w = signals [sig].head; w; w = w->next)	378	for (w = signals [sig].head; w; w = w->next)
246	event ((struct ev_watcher *)w, EV_SIGNAL);	379	event ((W)w, EV_SIGNAL);
247	}	380	}
248	}	381	}
249		382
250	static void	383	static void
251	siginit (void)	384	siginit (void)
…		…
255		388
256	/* rather than sort out wether we really need nb, set it */	389	/* rather than sort out wether we really need nb, set it */
257	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	390	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
258	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	391	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
259		392
260	evio_set (&sigev, sigpipe [0], EV_READ);	393	ev_io_set (&sigev, sigpipe [0], EV_READ);
261	evio_start (&sigev);	394	ev_io_start (&sigev);
262	}	395	}
263		396
264	/*****************************************************************************/	397	/*****************************************************************************/
265		398
		399	static struct ev_idle **idles;
		400	static int idlemax, idlecnt;
		401
		402	static struct ev_prepare **prepares;
		403	static int preparemax, preparecnt;
		404
		405	static struct ev_check **checks;
		406	static int checkmax, checkcnt;
		407
		408	/*****************************************************************************/
		409
		410	static struct ev_child *childs [PID_HASHSIZE];
		411	static struct ev_signal childev;
		412
		413	#ifndef WCONTINUED
		414	# define WCONTINUED 0
		415	#endif
		416
		417	static void
		418	childcb (struct ev_signal *sw, int revents)
		419	{
		420	struct ev_child *w;
		421	int pid, status;
		422
		423	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)
		424	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)
		425	if (w->pid == pid \|\| w->pid == -1)
		426	{
		427	w->status = status;
		428	event ((W)w, EV_CHILD);
		429	}
		430	}
		431
		432	/*****************************************************************************/
		433
266	#if HAVE_EPOLL	434	#if EV_USE_EPOLL
267	# include "ev_epoll.c"	435	# include "ev_epoll.c"
268	#endif	436	#endif
269	#if HAVE_SELECT	437	#if EV_USE_SELECT
270	# include "ev_select.c"	438	# include "ev_select.c"
271	#endif	439	#endif
272		440
		441	int
		442	ev_version_major (void)
		443	{
		444	return EV_VERSION_MAJOR;
		445	}
		446
		447	int
		448	ev_version_minor (void)
		449	{
		450	return EV_VERSION_MINOR;
		451	}
		452
273	int ev_init (int flags)	453	int ev_init (int flags)
274	{	454	{
275	#if HAVE_MONOTONIC
276	{
277	struct timespec ts;
278	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
279	have_monotonic = 1;
280	}
281	#endif
282
283	ev_now = ev_time ();
284	now = get_clock ();
285	diff = ev_now - now;
286
287	if (pipe (sigpipe))
288	return 0;
289
290	ev_method = EVMETHOD_NONE;
291	#if HAVE_EPOLL
292	if (ev_method == EVMETHOD_NONE) epoll_init (flags);
293	#endif
294	#if HAVE_SELECT
295	if (ev_method == EVMETHOD_NONE) select_init (flags);
296	#endif
297
298	if (ev_method)	455	if (!ev_method)
		456	{
		457	#if EV_USE_MONOTONIC
299	{	458	{
		459	struct timespec ts;
		460	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
		461	have_monotonic = 1;
		462	}
		463	#endif
		464
		465	ev_now = ev_time ();
		466	now = get_clock ();
		467	diff = ev_now - now;
		468
		469	if (pipe (sigpipe))
		470	return 0;
		471
		472	ev_method = EVMETHOD_NONE;
		473	#if EV_USE_EPOLL
		474	if (ev_method == EVMETHOD_NONE) epoll_init (flags);
		475	#endif
		476	#if EV_USE_SELECT
		477	if (ev_method == EVMETHOD_NONE) select_init (flags);
		478	#endif
		479
		480	if (ev_method)
		481	{
300	evw_init (&sigev, sigcb, 0);	482	ev_watcher_init (&sigev, sigcb);
301	siginit ();	483	siginit ();
		484
		485	ev_signal_init (&childev, childcb, SIGCHLD);
		486	ev_signal_start (&childev);
		487	}
302	}	488	}
303		489
304	return ev_method;	490	return ev_method;
305	}	491	}
306		492
307	/*****************************************************************************/	493	/*****************************************************************************/
308		494
309	void ev_prefork (void)	495	void
		496	ev_fork_prepare (void)
310	{	497	{
		498	/* nop */
311	}	499	}
312		500
		501	void
313	void ev_postfork_parent (void)	502	ev_fork_parent (void)
314	{	503	{
		504	/* nop */
315	}	505	}
316		506
		507	void
317	void ev_postfork_child (void)	508	ev_fork_child (void)
318	{	509	{
319	#if HAVE_EPOLL	510	#if EV_USE_EPOLL
320	if (ev_method == EVMETHOD_EPOLL)	511	if (ev_method == EVMETHOD_EPOLL)
321	epoll_postfork_child ();	512	epoll_postfork_child ();
322	#endif	513	#endif
323		514
324	evio_stop (&sigev);	515	ev_io_stop (&sigev);
325	close (sigpipe [0]);	516	close (sigpipe [0]);
326	close (sigpipe [1]);	517	close (sigpipe [1]);
327	pipe (sigpipe);	518	pipe (sigpipe);
328	siginit ();	519	siginit ();
329	}	520	}
330		521
331	/*****************************************************************************/	522	/*****************************************************************************/
332		523
333	static ev_hook hooks [EVHOOK_NUM];
334
335	void
336	ev_hook_register (int type, ev_hook hook)
337	{
338	hooks [type] = hook;
339	}
340
341	void
342	ev_hook_unregister (int type, ev_hook hook)
343	{
344	hooks [type] = 0;
345	}
346
347	static void	524	static void
348	hook_call (int type)
349	{
350	if (hooks [type])
351	hooks [type] ();
352	}
353
354	static void
355	fd_reify (void)
356	{
357	int i;
358
359	for (i = 0; i < fdchangecnt; ++i)
360	{
361	int fd = fdchanges [i];
362	ANFD *anfd = anfds + fd;
363	struct ev_io *w;
364
365	int wev = 0;
366
367	for (w = anfd->head; w; w = w->next)
368	wev \|= w->events;
369
370	if (anfd->wev != wev)
371	{
372	method_modify (fd, anfd->wev, wev);
373	anfd->wev = wev;
374	}
375	}
376
377	fdchangecnt = 0;
378	}
379
380	static void
381	call_pending ()	525	call_pending (void)
382	{	526	{
383	int i;	527	while (pendingcnt)
384
385	for (i = 0; i < pendingcnt; ++i)
386	{	528	{
387	ANPENDING *p = pendings + i;	529	ANPENDING *p = pendings + --pendingcnt;
388		530
389	if (p->w)	531	if (p->w)
390	{	532	{
391	p->w->pending = 0;	533	p->w->pending = 0;
392	p->w->cb (p->w, p->events);	534	p->w->cb (p->w, p->events);
393	}	535	}
394	}	536	}
395
396	pendingcnt = 0;
397	}	537	}
398		538
399	static void	539	static void
400	timers_reify (struct ev_timer **timers, int timercnt, ev_tstamp now)	540	timers_reify (void)
401	{	541	{
402	while (timercnt && timers [0]->at <= now)	542	while (timercnt && timers [0]->at <= now)
403	{	543	{
404	struct ev_timer *w = timers [0];	544	struct ev_timer *w = timers [0];
405		545
406	/* first reschedule or stop timer */	546	/* first reschedule or stop timer */
407	if (w->repeat)	547	if (w->repeat)
408	{	548	{
409	if (w->is_abs)	549	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
410	w->at += floor ((now - w->at) / w->repeat + 1.) * w->repeat;
411	else
412	w->at = now + w->repeat;	550	w->at = now + w->repeat;
413
414	assert (w->at > now);
415
416	downheap (timers, timercnt, 0);	551	downheap ((WT *)timers, timercnt, 0);
417	}	552	}
418	else	553	else
419	{
420	evtimer_stop (w); /* nonrepeating: stop timer */	554	ev_timer_stop (w); /* nonrepeating: stop timer */
421	--timercnt; /* maybe pass by reference instead? */	555
		556	event ((W)w, EV_TIMEOUT);
		557	}
		558	}
		559
		560	static void
		561	periodics_reify (void)
		562	{
		563	while (periodiccnt && periodics [0]->at <= ev_now)
		564	{
		565	struct ev_periodic *w = periodics [0];
		566
		567	/* first reschedule or stop timer */
		568	if (w->interval)
422	}	569	{
		570	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;
		571	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
		572	downheap ((WT *)periodics, periodiccnt, 0);
		573	}
		574	else
		575	ev_periodic_stop (w); /* nonrepeating: stop timer */
423		576
424	event ((struct ev_watcher *)w, EV_TIMEOUT);	577	event ((W)w, EV_PERIODIC);
425	}	578	}
426	}	579	}
427		580
428	static void	581	static void
429	time_update ()	582	periodics_reschedule (ev_tstamp diff)
430	{	583	{
431	int i;	584	int i;
		585
		586	/* adjust periodics after time jump */
		587	for (i = 0; i < periodiccnt; ++i)
		588	{
		589	struct ev_periodic *w = periodics [i];
		590
		591	if (w->interval)
		592	{
		593	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
		594
		595	if (fabs (diff) >= 1e-4)
		596	{
		597	ev_periodic_stop (w);
		598	ev_periodic_start (w);
		599
		600	i = 0; /* restart loop, inefficient, but time jumps should be rare */
		601	}
		602	}
		603	}
		604	}
		605
		606	static void
		607	time_update (void)
		608	{
		609	int i;
		610
432	ev_now = ev_time ();	611	ev_now = ev_time ();
433		612
434	if (have_monotonic)	613	if (have_monotonic)
435	{	614	{
436	ev_tstamp odiff = diff;	615	ev_tstamp odiff = diff;
437		616
438	/* detecting time jumps is much more difficult */
439	for (i = 2; --i; ) /* loop a few times, before making important decisions */	617	for (i = 4; --i; ) /* loop a few times, before making important decisions */
440	{	618	{
441	now = get_clock ();	619	now = get_clock ();
442	diff = ev_now - now;	620	diff = ev_now - now;
443		621
444	if (fabs (odiff - diff) < MIN_TIMEJUMP)	622	if (fabs (odiff - diff) < MIN_TIMEJUMP)
445	return; /* all is well */	623	return; /* all is well */
446		624
447	ev_now = ev_time ();	625	ev_now = ev_time ();
448	}	626	}
449		627
450	/* time jump detected, reschedule atimers */	628	periodics_reschedule (diff - odiff);
451	for (i = 0; i < atimercnt; ++i)	629	/* no timer adjustment, as the monotonic clock doesn't jump */
452	{
453	struct ev_timer *w = atimers [i];
454	w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat;
455	}
456	}	630	}
457	else	631	else
458	{	632	{
459	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	633	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)
460	/* time jump detected, adjust rtimers */	634	{
		635	periodics_reschedule (ev_now - now);
		636
		637	/* adjust timers. this is easy, as the offset is the same for all */
461	for (i = 0; i < rtimercnt; ++i)	638	for (i = 0; i < timercnt; ++i)
462	rtimers [i]->at += ev_now - now;	639	timers [i]->at += diff;
		640	}
463		641
464	now = ev_now;	642	now = ev_now;
465	}	643	}
466	}	644	}
467		645
468	int ev_loop_done;	646	int ev_loop_done;
469		647
470	void ev_loop (int flags)	648	void ev_loop (int flags)
471	{	649	{
472	double block;	650	double block;
473	ev_loop_done = flags & EVLOOP_ONESHOT;	651	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
474		652
475	do	653	do
476	{	654	{
477	hook_call (EVHOOK_PREPOLL);	655	/* queue check watchers (and execute them) */
		656	if (preparecnt)
		657	{
		658	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
		659	call_pending ();
		660	}
478		661
479	/* update fd-related kernel structures */	662	/* update fd-related kernel structures */
480	fd_reify ();	663	fd_reify ();
481		664
482	/* calculate blocking time */	665	/* calculate blocking time */
		666
		667	/* we only need this for !monotonic clockor timers, but as we basically
		668	always have timers, we just calculate it always */
		669	ev_now = ev_time ();
		670
483	if (flags & EVLOOP_NONBLOCK)	671	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
484	block = 0.;	672	block = 0.;
485	else	673	else
486	{	674	{
487	block = MAX_BLOCKTIME;	675	block = MAX_BLOCKTIME;
488		676
489	if (rtimercnt)	677	if (timercnt)
490	{	678	{
491	ev_tstamp to = rtimers [0]->at - get_clock () + method_fudge;	679	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;
492	if (block > to) block = to;	680	if (block > to) block = to;
493	}	681	}
494		682
495	if (atimercnt)	683	if (periodiccnt)
496	{	684	{
497	ev_tstamp to = atimers [0]->at - ev_time () + method_fudge;	685	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;
498	if (block > to) block = to;	686	if (block > to) block = to;
499	}	687	}
500		688
501	if (block < 0.) block = 0.;	689	if (block < 0.) block = 0.;
502	}	690	}
…		…
504	method_poll (block);	692	method_poll (block);
505		693
506	/* update ev_now, do magic */	694	/* update ev_now, do magic */
507	time_update ();	695	time_update ();
508		696
509	hook_call (EVHOOK_POSTPOLL);
510
511	/* put pending timers into pendign queue and reschedule them */	697	/* queue pending timers and reschedule them */
512	/* absolute timers first */	698	timers_reify (); /* relative timers called last */
513	timers_reify (atimers, atimercnt, ev_now);	699	periodics_reify (); /* absolute timers called first */
514	/* relative timers second */	700
515	timers_reify (rtimers, rtimercnt, now);	701	/* queue idle watchers unless io or timers are pending */
		702	if (!pendingcnt)
		703	queue_events ((W *)idles, idlecnt, EV_IDLE);
		704
		705	/* queue check watchers, to be executed first */
		706	if (checkcnt)
		707	queue_events ((W *)checks, checkcnt, EV_CHECK);
516		708
517	call_pending ();	709	call_pending ();
518	}	710	}
519	while (!ev_loop_done);	711	while (!ev_loop_done);
520	}
521		712
522	/*****************************************************************************/	713	if (ev_loop_done != 2)
		714	ev_loop_done = 0;
		715	}
523		716
		717	/*****************************************************************************/
		718
524	static void	719	static void
525	wlist_add (struct ev_watcher_list *head, struct ev_watcher_list elem)	720	wlist_add (WL *head, WL elem)
526	{	721	{
527	elem->next = *head;	722	elem->next = *head;
528	*head = elem;	723	*head = elem;
529	}	724	}
530		725
531	static void	726	static void
532	wlist_del (struct ev_watcher_list *head, struct ev_watcher_list elem)	727	wlist_del (WL *head, WL elem)
533	{	728	{
534	while (*head)	729	while (*head)
535	{	730	{
536	if (*head == elem)	731	if (*head == elem)
537	{	732	{
…		…
542	head = &(*head)->next;	737	head = &(*head)->next;
543	}	738	}
544	}	739	}
545		740
546	static void	741	static void
547	ev_start (struct ev_watcher *w, int active)	742	ev_clear_pending (W w)
548	{	743	{
		744	if (w->pending)
		745	{
		746	pendings [w->pending - 1].w = 0;
549	w->pending = 0;	747	w->pending = 0;
		748	}
		749	}
		750
		751	static void
		752	ev_start (W w, int active)
		753	{
550	w->active = active;	754	w->active = active;
551	}	755	}
552		756
553	static void	757	static void
554	ev_stop (struct ev_watcher *w)	758	ev_stop (W w)
555	{	759	{
556	if (w->pending)
557	pendings [w->pending - 1].w = 0;
558
559	w->active = 0;	760	w->active = 0;
560	/* nop */
561	}	761	}
562		762
563	/*****************************************************************************/	763	/*****************************************************************************/
564		764
565	void	765	void
566	evio_start (struct ev_io *w)	766	ev_io_start (struct ev_io *w)
567	{	767	{
568	if (ev_is_active (w))	768	if (ev_is_active (w))
569	return;	769	return;
570		770
571	int fd = w->fd;	771	int fd = w->fd;
572		772
573	ev_start ((struct ev_watcher *)w, 1);	773	assert (("ev_io_start called with negative fd", fd >= 0));
		774
		775	ev_start ((W)w, 1);
574	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	776	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
575	wlist_add ((struct ev_watcher_list *)&anfds[fd].head, (struct ev_watcher_list )w);	777	wlist_add ((WL *)&anfds[fd].head, (WL)w);
576		778
577	++fdchangecnt;	779	fd_change (fd);
578	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
579	fdchanges [fdchangecnt - 1] = fd;
580	}	780	}
581		781
582	void	782	void
583	evio_stop (struct ev_io *w)	783	ev_io_stop (struct ev_io *w)
584	{	784	{
		785	ev_clear_pending ((W)w);
585	if (!ev_is_active (w))	786	if (!ev_is_active (w))
586	return;	787	return;
587		788
588	wlist_del ((struct ev_watcher_list *)&anfds[w->fd].head, (struct ev_watcher_list )w);	789	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
589	ev_stop ((struct ev_watcher *)w);	790	ev_stop ((W)w);
590		791
591	++fdchangecnt;	792	fd_change (w->fd);
592	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
593	fdchanges [fdchangecnt - 1] = w->fd;
594	}	793	}
595		794
596	void	795	void
597	evtimer_start (struct ev_timer *w)	796	ev_timer_start (struct ev_timer *w)
598	{	797	{
		798	if (ev_is_active (w))
		799	return;
		800
		801	w->at += now;
		802
		803	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
		804
		805	ev_start ((W)w, ++timercnt);
		806	array_needsize (timers, timermax, timercnt, );
		807	timers [timercnt - 1] = w;
		808	upheap ((WT *)timers, timercnt - 1);
		809	}
		810
		811	void
		812	ev_timer_stop (struct ev_timer *w)
		813	{
		814	ev_clear_pending ((W)w);
599	if (ev_is_active (w))	815	if (!ev_is_active (w))
600	return;	816	return;
601		817
602	if (w->is_abs)	818	if (w->active < timercnt--)
		819	{
		820	timers [w->active - 1] = timers [timercnt];
		821	downheap ((WT *)timers, timercnt, w->active - 1);
603	{	822	}
604	/* this formula differs from the one in timer_reify becuse we do not round up */	823
		824	w->at = w->repeat;
		825
		826	ev_stop ((W)w);
		827	}
		828
		829	void
		830	ev_timer_again (struct ev_timer *w)
		831	{
		832	if (ev_is_active (w))
		833	{
605	if (w->repeat)	834	if (w->repeat)
		835	{
		836	w->at = now + w->repeat;
		837	downheap ((WT *)timers, timercnt, w->active - 1);
		838	}
		839	else
		840	ev_timer_stop (w);
		841	}
		842	else if (w->repeat)
		843	ev_timer_start (w);
		844	}
		845
		846	void
		847	ev_periodic_start (struct ev_periodic *w)
		848	{
		849	if (ev_is_active (w))
		850	return;
		851
		852	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
		853
		854	/* this formula differs from the one in periodic_reify because we do not always round up */
		855	if (w->interval)
606	w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat;	856	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
607		857
608	ev_start ((struct ev_watcher *)w, ++atimercnt);	858	ev_start ((W)w, ++periodiccnt);
609	array_needsize (atimers, atimermax, atimercnt, );	859	array_needsize (periodics, periodicmax, periodiccnt, );
610	atimers [atimercnt - 1] = w;	860	periodics [periodiccnt - 1] = w;
611	upheap (atimers, atimercnt - 1);	861	upheap ((WT *)periodics, periodiccnt - 1);
612	}
613	else
614	{
615	w->at += now;
616
617	ev_start ((struct ev_watcher *)w, ++rtimercnt);
618	array_needsize (rtimers, rtimermax, rtimercnt, );
619	rtimers [rtimercnt - 1] = w;
620	upheap (rtimers, rtimercnt - 1);
621	}
622
623	}	862	}
624		863
625	void	864	void
626	evtimer_stop (struct ev_timer *w)	865	ev_periodic_stop (struct ev_periodic *w)
627	{	866	{
		867	ev_clear_pending ((W)w);
628	if (!ev_is_active (w))	868	if (!ev_is_active (w))
629	return;	869	return;
630		870
631	if (w->is_abs)
632	{
633	if (w->active < atimercnt--)	871	if (w->active < periodiccnt--)
634	{
635	atimers [w->active - 1] = atimers [atimercnt];
636	downheap (atimers, atimercnt, w->active - 1);
637	}
638	}	872	{
639	else	873	periodics [w->active - 1] = periodics [periodiccnt];
		874	downheap ((WT *)periodics, periodiccnt, w->active - 1);
640	{	875	}
641	if (w->active < rtimercnt--)
642	{
643	rtimers [w->active - 1] = rtimers [rtimercnt];
644	downheap (rtimers, rtimercnt, w->active - 1);
645	}
646	}
647		876
648	ev_stop ((struct ev_watcher *)w);	877	ev_stop ((W)w);
649	}	878	}
650		879
651	void	880	void
652	evsignal_start (struct ev_signal *w)	881	ev_signal_start (struct ev_signal *w)
653	{	882	{
654	if (ev_is_active (w))	883	if (ev_is_active (w))
655	return;	884	return;
656		885
657	ev_start ((struct ev_watcher *)w, 1);	886	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		887
		888	ev_start ((W)w, 1);
658	array_needsize (signals, signalmax, w->signum, signals_init);	889	array_needsize (signals, signalmax, w->signum, signals_init);
659	wlist_add ((struct ev_watcher_list *)&signals [w->signum - 1].head, (struct ev_watcher_list )w);	890	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
660		891
661	if (!w->next)	892	if (!w->next)
662	{	893	{
663	struct sigaction sa;	894	struct sigaction sa;
664	sa.sa_handler = sighandler;	895	sa.sa_handler = sighandler;
…		…
667	sigaction (w->signum, &sa, 0);	898	sigaction (w->signum, &sa, 0);
668	}	899	}
669	}	900	}
670		901
671	void	902	void
672	evsignal_stop (struct ev_signal *w)	903	ev_signal_stop (struct ev_signal *w)
673	{	904	{
		905	ev_clear_pending ((W)w);
674	if (!ev_is_active (w))	906	if (!ev_is_active (w))
675	return;	907	return;
676		908
677	wlist_del ((struct ev_watcher_list *)&signals [w->signum - 1].head, (struct ev_watcher_list )w);	909	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
678	ev_stop ((struct ev_watcher *)w);	910	ev_stop ((W)w);
679		911
680	if (!signals [w->signum - 1].head)	912	if (!signals [w->signum - 1].head)
681	signal (w->signum, SIG_DFL);	913	signal (w->signum, SIG_DFL);
682	}	914	}
683		915
		916	void
		917	ev_idle_start (struct ev_idle *w)
		918	{
		919	if (ev_is_active (w))
		920	return;
		921
		922	ev_start ((W)w, ++idlecnt);
		923	array_needsize (idles, idlemax, idlecnt, );
		924	idles [idlecnt - 1] = w;
		925	}
		926
		927	void
		928	ev_idle_stop (struct ev_idle *w)
		929	{
		930	ev_clear_pending ((W)w);
		931	if (ev_is_active (w))
		932	return;
		933
		934	idles [w->active - 1] = idles [--idlecnt];
		935	ev_stop ((W)w);
		936	}
		937
		938	void
		939	ev_prepare_start (struct ev_prepare *w)
		940	{
		941	if (ev_is_active (w))
		942	return;
		943
		944	ev_start ((W)w, ++preparecnt);
		945	array_needsize (prepares, preparemax, preparecnt, );
		946	prepares [preparecnt - 1] = w;
		947	}
		948
		949	void
		950	ev_prepare_stop (struct ev_prepare *w)
		951	{
		952	ev_clear_pending ((W)w);
		953	if (ev_is_active (w))
		954	return;
		955
		956	prepares [w->active - 1] = prepares [--preparecnt];
		957	ev_stop ((W)w);
		958	}
		959
		960	void
		961	ev_check_start (struct ev_check *w)
		962	{
		963	if (ev_is_active (w))
		964	return;
		965
		966	ev_start ((W)w, ++checkcnt);
		967	array_needsize (checks, checkmax, checkcnt, );
		968	checks [checkcnt - 1] = w;
		969	}
		970
		971	void
		972	ev_check_stop (struct ev_check *w)
		973	{
		974	ev_clear_pending ((W)w);
		975	if (ev_is_active (w))
		976	return;
		977
		978	checks [w->active - 1] = checks [--checkcnt];
		979	ev_stop ((W)w);
		980	}
		981
		982	void
		983	ev_child_start (struct ev_child *w)
		984	{
		985	if (ev_is_active (w))
		986	return;
		987
		988	ev_start ((W)w, 1);
		989	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
		990	}
		991
		992	void
		993	ev_child_stop (struct ev_child *w)
		994	{
		995	ev_clear_pending ((W)w);
		996	if (ev_is_active (w))
		997	return;
		998
		999	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
		1000	ev_stop ((W)w);
		1001	}
		1002
684	/*****************************************************************************/	1003	/*****************************************************************************/
		1004
		1005	struct ev_once
		1006	{
		1007	struct ev_io io;
		1008	struct ev_timer to;
		1009	void (cb)(int revents, void arg);
		1010	void *arg;
		1011	};
		1012
		1013	static void
		1014	once_cb (struct ev_once *once, int revents)
		1015	{
		1016	void (cb)(int revents, void arg) = once->cb;
		1017	void *arg = once->arg;
		1018
		1019	ev_io_stop (&once->io);
		1020	ev_timer_stop (&once->to);
		1021	free (once);
		1022
		1023	cb (revents, arg);
		1024	}
		1025
		1026	static void
		1027	once_cb_io (struct ev_io *w, int revents)
		1028	{
		1029	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
		1030	}
		1031
		1032	static void
		1033	once_cb_to (struct ev_timer *w, int revents)
		1034	{
		1035	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
		1036	}
		1037
		1038	void
		1039	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
		1040	{
		1041	struct ev_once *once = malloc (sizeof (struct ev_once));
		1042
		1043	if (!once)
		1044	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
		1045	else
		1046	{
		1047	once->cb = cb;
		1048	once->arg = arg;
		1049
		1050	ev_watcher_init (&once->io, once_cb_io);
		1051	if (fd >= 0)
		1052	{
		1053	ev_io_set (&once->io, fd, events);
		1054	ev_io_start (&once->io);
		1055	}
		1056
		1057	ev_watcher_init (&once->to, once_cb_to);
		1058	if (timeout >= 0.)
		1059	{
		1060	ev_timer_set (&once->to, timeout, 0.);
		1061	ev_timer_start (&once->to);
		1062	}
		1063	}
		1064	}
		1065
		1066	/*****************************************************************************/
		1067
685	#if 1	1068	#if 0
		1069
		1070	struct ev_io wio;
686		1071
687	static void	1072	static void
688	sin_cb (struct ev_io *w, int revents)	1073	sin_cb (struct ev_io *w, int revents)
689	{	1074	{
690	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);	1075	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
…		…
692		1077
693	static void	1078	static void
694	ocb (struct ev_timer *w, int revents)	1079	ocb (struct ev_timer *w, int revents)
695	{	1080	{
696	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);	1081	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
697	evtimer_stop (w);	1082	ev_timer_stop (w);
698	evtimer_start (w);	1083	ev_timer_start (w);
699	}	1084	}
700		1085
701	static void	1086	static void
702	scb (struct ev_signal *w, int revents)	1087	scb (struct ev_signal *w, int revents)
703	{	1088	{
704	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1089	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
		1090	ev_io_stop (&wio);
		1091	ev_io_start (&wio);
		1092	}
		1093
		1094	static void
		1095	gcb (struct ev_signal *w, int revents)
		1096	{
		1097	fprintf (stderr, "generic %x\n", revents);
		1098
705	}	1099	}
706		1100
707	int main (void)	1101	int main (void)
708	{	1102	{
709	struct ev_io sin;
710
711	ev_init (0);	1103	ev_init (0);
712		1104
713	evw_init (&sin, sin_cb, 55);
714	evio_set (&sin, 0, EV_READ);	1105	ev_io_init (&wio, sin_cb, 0, EV_READ);
715	evio_start (&sin);	1106	ev_io_start (&wio);
716		1107
717	struct ev_timer t[10000];	1108	struct ev_timer t[10000];
718		1109
719	#if 1	1110	#if 0
720	int i;	1111	int i;
721	for (i = 0; i < 10000; ++i)	1112	for (i = 0; i < 10000; ++i)
722	{	1113	{
723	struct ev_timer *w = t + i;	1114	struct ev_timer *w = t + i;
724	evw_init (w, ocb, i);	1115	ev_watcher_init (w, ocb, i);
725	evtimer_set_abs (w, drand48 (), 0.99775533);	1116	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
726	evtimer_start (w);	1117	ev_timer_start (w);
727	if (drand48 () < 0.5)	1118	if (drand48 () < 0.5)
728	evtimer_stop (w);	1119	ev_timer_stop (w);
729	}	1120	}
730	#endif	1121	#endif
731		1122
732	struct ev_timer t1;	1123	struct ev_timer t1;
733	evw_init (&t1, ocb, 0);	1124	ev_timer_init (&t1, ocb, 5, 10);
734	evtimer_set_abs (&t1, 5, 10);
735	evtimer_start (&t1);	1125	ev_timer_start (&t1);
736		1126
737	struct ev_signal sig;	1127	struct ev_signal sig;
738	evw_init (&sig, scb, 65535);
739	evsignal_set (&sig, SIGQUIT);	1128	ev_signal_init (&sig, scb, SIGQUIT);
740	evsignal_start (&sig);	1129	ev_signal_start (&sig);
		1130
		1131	struct ev_check cw;
		1132	ev_check_init (&cw, gcb);
		1133	ev_check_start (&cw);
		1134
		1135	struct ev_idle iw;
		1136	ev_idle_init (&iw, gcb);
		1137	ev_idle_start (&iw);
741		1138
742	ev_loop (0);	1139	ev_loop (0);
743		1140
744	return 0;	1141	return 0;
745	}	1142	}

Diff Legend

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

Comparing libev/ev.c (file contents): Revision 1.8 by root, Wed Oct 31 00:32:33 2007 UTC vs. Revision 1.36 by root, Thu Nov 1 13:11:11 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.8 by root, Wed Oct 31 00:32:33 2007 UTC vs.
Revision 1.36 by root, Thu Nov 1 13:11:11 2007 UTC