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

Comparing libev/ev.c (file contents):
Revision 1.9 by root, Wed Oct 31 07:24:17 2007 UTC vs.
Revision 1.40 by root, Fri Nov 2 11:02:23 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	/**/
		52
		53	#ifndef EV_USE_MONOTONIC
		54	# define EV_USE_MONOTONIC 1
		55	#endif
		56
		57	#ifndef EV_USE_SELECT
		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 EV_USE_REALTIME
		66	# define EV_USE_REALTIME 1
		67	#endif
		68
		69	/**/
		70
14	#ifdef CLOCK_MONOTONIC	71	#ifndef CLOCK_MONOTONIC
		72	# undef EV_USE_MONOTONIC
15	# define HAVE_MONOTONIC 1	73	# define EV_USE_MONOTONIC 0
16	#endif	74	#endif
17		75
		76	#ifndef CLOCK_REALTIME
		77	# undef EV_USE_REALTIME
18	#define HAVE_REALTIME 1	78	# define EV_USE_REALTIME 0
19	#define HAVE_EPOLL 1	79	#endif
20	#define HAVE_SELECT 1	80
		81	/**/
21		82
22	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	83	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
23	#define MAX_BLOCKTIME 60.	84	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
		85	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
		86	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
24		87
25	#include "ev.h"	88	#include "ev.h"
26		89
		90	#if __GNUC__ >= 3
		91	# define expect(expr,value) __builtin_expect ((expr),(value))
		92	# define inline inline
		93	#else
		94	# define expect(expr,value) (expr)
		95	# define inline static
		96	#endif
		97
		98	#define expect_false(expr) expect ((expr) != 0, 0)
		99	#define expect_true(expr) expect ((expr) != 0, 1)
		100
27	struct ev_watcher {	101	typedef struct ev_watcher *W;
28	EV_WATCHER (ev_watcher);
29	};
30
31	struct ev_watcher_list {	102	typedef struct ev_watcher_list *WL;
32	EV_WATCHER_LIST (ev_watcher_list);	103	typedef struct ev_watcher_time *WT;
33	};
34		104
35	static ev_tstamp now, diff; /* monotonic clock */	105	static ev_tstamp now_floor, now, diff; /* monotonic clock */
36	ev_tstamp ev_now;	106	ev_tstamp ev_now;
37	int ev_method;	107	int ev_method;
38		108
39	static int have_monotonic; /* runtime */	109	static int have_monotonic; /* runtime */
40		110
45	/*****************************************************************************/	115	/*****************************************************************************/
46		116
47	ev_tstamp	117	ev_tstamp
48	ev_time (void)	118	ev_time (void)
49	{	119	{
50	#if HAVE_REALTIME	120	#if EV_USE_REALTIME
51	struct timespec ts;	121	struct timespec ts;
52	clock_gettime (CLOCK_REALTIME, &ts);	122	clock_gettime (CLOCK_REALTIME, &ts);
53	return ts.tv_sec + ts.tv_nsec * 1e-9;	123	return ts.tv_sec + ts.tv_nsec * 1e-9;
54	#else	124	#else
55	struct timeval tv;	125	struct timeval tv;
…		…
59	}	129	}
60		130
61	static ev_tstamp	131	static ev_tstamp
62	get_clock (void)	132	get_clock (void)
63	{	133	{
64	#if HAVE_MONOTONIC	134	#if EV_USE_MONOTONIC
65	if (have_monotonic)	135	if (expect_true (have_monotonic))
66	{	136	{
67	struct timespec ts;	137	struct timespec ts;
68	clock_gettime (CLOCK_MONOTONIC, &ts);	138	clock_gettime (CLOCK_MONOTONIC, &ts);
69	return ts.tv_sec + ts.tv_nsec * 1e-9;	139	return ts.tv_sec + ts.tv_nsec * 1e-9;
70	}	140	}
71	#endif	141	#endif
72		142
73	return ev_time ();	143	return ev_time ();
74	}	144	}
75		145
		146	#define array_roundsize(base,n) ((n) \| 4 & ~3)
		147
76	#define array_needsize(base,cur,cnt,init) \	148	#define array_needsize(base,cur,cnt,init) \
77	if ((cnt) > cur) \	149	if (expect_false ((cnt) > cur)) \
78	{ \	150	{ \
79	int newcnt = cur ? cur << 1 : 16; \	151	int newcnt = cur; \
80	fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\	152	do \
		153	{ \
		154	newcnt = array_roundsize (base, newcnt << 1); \
		155	} \
		156	while ((cnt) > newcnt); \
		157	\
81	base = realloc (base, sizeof (base) (newcnt)); \	158	base = realloc (base, sizeof (base) (newcnt)); \
82	init (base + cur, newcnt - cur); \	159	init (base + cur, newcnt - cur); \
83	cur = newcnt; \	160	cur = newcnt; \
84	}	161	}
85		162
86	/*****************************************************************************/	163	/*****************************************************************************/
87		164
88	typedef struct	165	typedef struct
89	{	166	{
90	struct ev_io *head;	167	struct ev_io *head;
91	unsigned char wev, rev; /* want, received event set */	168	unsigned char events;
		169	unsigned char reify;
92	} ANFD;	170	} ANFD;
93		171
94	static ANFD *anfds;	172	static ANFD *anfds;
95	static int anfdmax;	173	static int anfdmax;
96		174
97	static int *fdchanges;
98	static int fdchangemax, fdchangecnt;
99
100	static void	175	static void
101	anfds_init (ANFD *base, int count)	176	anfds_init (ANFD *base, int count)
102	{	177	{
103	while (count--)	178	while (count--)
104	{	179	{
105	base->head = 0;	180	base->head = 0;
106	base->wev = base->rev = EV_NONE;	181	base->events = EV_NONE;
		182	base->reify = 0;
		183
107	++base;	184	++base;
108	}	185	}
109	}	186	}
110		187
111	typedef struct	188	typedef struct
112	{	189	{
113	struct ev_watcher *w;	190	W w;
114	int events;	191	int events;
115	} ANPENDING;	192	} ANPENDING;
116		193
117	static ANPENDING *pendings;	194	static ANPENDING *pendings;
118	static int pendingmax, pendingcnt;	195	static int pendingmax, pendingcnt;
119		196
120	static void	197	static void
121	event (struct ev_watcher *w, int events)	198	event (W w, int events)
122	{	199	{
		200	if (w->pending)
		201	{
		202	pendings [w->pending - 1].events \|= events;
		203	return;
		204	}
		205
123	w->pending = ++pendingcnt;	206	w->pending = ++pendingcnt;
124	array_needsize (pendings, pendingmax, pendingcnt, );	207	array_needsize (pendings, pendingmax, pendingcnt, );
125	pendings [pendingcnt - 1].w = w;	208	pendings [pendingcnt - 1].w = w;
126	pendings [pendingcnt - 1].events = events;	209	pendings [pendingcnt - 1].events = events;
127	}	210	}
128		211
129	static void	212	static void
		213	queue_events (W *events, int eventcnt, int type)
		214	{
		215	int i;
		216
		217	for (i = 0; i < eventcnt; ++i)
		218	event (events [i], type);
		219	}
		220
		221	static void
130	fd_event (int fd, int events)	222	fd_event (int fd, int events)
131	{	223	{
132	ANFD *anfd = anfds + fd;	224	ANFD *anfd = anfds + fd;
133	struct ev_io *w;	225	struct ev_io *w;
134		226
135	for (w = anfd->head; w; w = w->next)	227	for (w = anfd->head; w; w = w->next)
136	{	228	{
137	int ev = w->events & events;	229	int ev = w->events & events;
138		230
139	if (ev)	231	if (ev)
140	event ((struct ev_watcher *)w, ev);	232	event ((W)w, ev);
141	}	233	}
142	}	234	}
143		235
		236	/*****************************************************************************/
		237
		238	static int *fdchanges;
		239	static int fdchangemax, fdchangecnt;
		240
144	static void	241	static void
145	queue_events (struct ev_watcher **events, int eventcnt, int type)	242	fd_reify (void)
146	{	243	{
147	int i;	244	int i;
148		245
149	for (i = 0; i < eventcnt; ++i)	246	for (i = 0; i < fdchangecnt; ++i)
150	event (events [i], type);	247	{
151	}	248	int fd = fdchanges [i];
		249	ANFD *anfd = anfds + fd;
		250	struct ev_io *w;
152		251
153	/*****************************************************************************/	252	int events = 0;
154		253
		254	for (w = anfd->head; w; w = w->next)
		255	events \|= w->events;
		256
		257	anfd->reify = 0;
		258
		259	if (anfd->events != events)
		260	{
		261	method_modify (fd, anfd->events, events);
		262	anfd->events = events;
		263	}
		264	}
		265
		266	fdchangecnt = 0;
		267	}
		268
		269	static void
		270	fd_change (int fd)
		271	{
		272	if (anfds [fd].reify \|\| fdchangecnt < 0)
		273	return;
		274
		275	anfds [fd].reify = 1;
		276
		277	++fdchangecnt;
		278	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
		279	fdchanges [fdchangecnt - 1] = fd;
		280	}
		281
		282	/* called on EBADF to verify fds */
		283	static void
		284	fd_recheck (void)
		285	{
		286	int fd;
		287
		288	for (fd = 0; fd < anfdmax; ++fd)
		289	if (anfds [fd].events)
		290	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
		291	while (anfds [fd].head)
		292	{
		293	ev_io_stop (anfds [fd].head);
		294	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);
		295	}
		296	}
		297
		298	/*****************************************************************************/
		299
155	static struct ev_timer **atimers;	300	static struct ev_timer **timers;
156	static int atimermax, atimercnt;	301	static int timermax, timercnt;
157		302
158	static struct ev_timer **rtimers;	303	static struct ev_periodic **periodics;
159	static int rtimermax, rtimercnt;	304	static int periodicmax, periodiccnt;
160		305
161	static void	306	static void
162	upheap (struct ev_timer **timers, int k)	307	upheap (WT *timers, int k)
163	{	308	{
164	struct ev_timer *w = timers [k];	309	WT w = timers [k];
165		310
166	while (k && timers [k >> 1]->at > w->at)	311	while (k && timers [k >> 1]->at > w->at)
167	{	312	{
168	timers [k] = timers [k >> 1];	313	timers [k] = timers [k >> 1];
169	timers [k]->active = k + 1;	314	timers [k]->active = k + 1;
…		…
174	timers [k]->active = k + 1;	319	timers [k]->active = k + 1;
175		320
176	}	321	}
177		322
178	static void	323	static void
179	downheap (struct ev_timer **timers, int N, int k)	324	downheap (WT *timers, int N, int k)
180	{	325	{
181	struct ev_timer *w = timers [k];	326	WT w = timers [k];
182		327
183	while (k < (N >> 1))	328	while (k < (N >> 1))
184	{	329	{
185	int j = k << 1;	330	int j = k << 1;
186		331
…		…
202	/*****************************************************************************/	347	/*****************************************************************************/
203		348
204	typedef struct	349	typedef struct
205	{	350	{
206	struct ev_signal *head;	351	struct ev_signal *head;
207	sig_atomic_t gotsig;	352	sig_atomic_t volatile gotsig;
208	} ANSIG;	353	} ANSIG;
209		354
210	static ANSIG *signals;	355	static ANSIG *signals;
211	static int signalmax;	356	static int signalmax;
212		357
213	static int sigpipe [2];	358	static int sigpipe [2];
214	static sig_atomic_t gotsig;	359	static sig_atomic_t volatile gotsig;
215	static struct ev_io sigev;	360	static struct ev_io sigev;
216		361
217	static void	362	static void
218	signals_init (ANSIG *base, int count)	363	signals_init (ANSIG *base, int count)
219	{	364	{
220	while (count--)	365	while (count--)
221	{	366	{
222	base->head = 0;	367	base->head = 0;
223	base->gotsig = 0;	368	base->gotsig = 0;
		369
224	++base;	370	++base;
225	}	371	}
226	}	372	}
227		373
228	static void	374	static void
…		…
231	signals [signum - 1].gotsig = 1;	377	signals [signum - 1].gotsig = 1;
232		378
233	if (!gotsig)	379	if (!gotsig)
234	{	380	{
235	gotsig = 1;	381	gotsig = 1;
236	write (sigpipe [1], &gotsig, 1);	382	write (sigpipe [1], &signum, 1);
237	}	383	}
238	}	384	}
239		385
240	static void	386	static void
241	sigcb (struct ev_io *iow, int revents)	387	sigcb (struct ev_io *iow, int revents)
242	{	388	{
243	struct ev_signal *w;	389	struct ev_signal *w;
244	int sig;	390	int signum;
245		391
		392	read (sigpipe [0], &revents, 1);
246	gotsig = 0;	393	gotsig = 0;
247	read (sigpipe [0], &revents, 1);
248		394
249	for (sig = signalmax; sig--; )	395	for (signum = signalmax; signum--; )
250	if (signals [sig].gotsig)	396	if (signals [signum].gotsig)
251	{	397	{
252	signals [sig].gotsig = 0;	398	signals [signum].gotsig = 0;
253		399
254	for (w = signals [sig].head; w; w = w->next)	400	for (w = signals [signum].head; w; w = w->next)
255	event ((struct ev_watcher *)w, EV_SIGNAL);	401	event ((W)w, EV_SIGNAL);
256	}	402	}
257	}	403	}
258		404
259	static void	405	static void
260	siginit (void)	406	siginit (void)
…		…
264		410
265	/* rather than sort out wether we really need nb, set it */	411	/* rather than sort out wether we really need nb, set it */
266	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	412	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
267	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	413	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
268		414
269	evio_set (&sigev, sigpipe [0], EV_READ);	415	ev_io_set (&sigev, sigpipe [0], EV_READ);
270	evio_start (&sigev);	416	ev_io_start (&sigev);
271	}	417	}
272		418
273	/*****************************************************************************/	419	/*****************************************************************************/
274		420
275	static struct ev_idle **idles;	421	static struct ev_idle **idles;
276	static int idlemax, idlecnt;	422	static int idlemax, idlecnt;
277		423
		424	static struct ev_prepare **prepares;
		425	static int preparemax, preparecnt;
		426
278	static struct ev_check **checks;	427	static struct ev_check **checks;
279	static int checkmax, checkcnt;	428	static int checkmax, checkcnt;
280		429
281	/*****************************************************************************/	430	/*****************************************************************************/
282		431
		432	static struct ev_child *childs [PID_HASHSIZE];
		433	static struct ev_signal childev;
		434
		435	#ifndef WCONTINUED
		436	# define WCONTINUED 0
		437	#endif
		438
		439	static void
		440	childcb (struct ev_signal *sw, int revents)
		441	{
		442	struct ev_child *w;
		443	int pid, status;
		444
		445	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)
		446	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)
		447	if (w->pid == pid \|\| !w->pid)
		448	{
		449	w->status = status;
		450	event ((W)w, EV_CHILD);
		451	}
		452	}
		453
		454	/*****************************************************************************/
		455
283	#if HAVE_EPOLL	456	#if EV_USE_EPOLL
284	# include "ev_epoll.c"	457	# include "ev_epoll.c"
285	#endif	458	#endif
286	#if HAVE_SELECT	459	#if EV_USE_SELECT
287	# include "ev_select.c"	460	# include "ev_select.c"
288	#endif	461	#endif
289		462
		463	int
		464	ev_version_major (void)
		465	{
		466	return EV_VERSION_MAJOR;
		467	}
		468
		469	int
		470	ev_version_minor (void)
		471	{
		472	return EV_VERSION_MINOR;
		473	}
		474
290	int ev_init (int flags)	475	int ev_init (int flags)
291	{	476	{
292	#if HAVE_MONOTONIC
293	{
294	struct timespec ts;
295	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
296	have_monotonic = 1;
297	}
298	#endif
299
300	ev_now = ev_time ();
301	now = get_clock ();
302	diff = ev_now - now;
303
304	if (pipe (sigpipe))
305	return 0;
306
307	ev_method = EVMETHOD_NONE;
308	#if HAVE_EPOLL
309	if (ev_method == EVMETHOD_NONE) epoll_init (flags);
310	#endif
311	#if HAVE_SELECT
312	if (ev_method == EVMETHOD_NONE) select_init (flags);
313	#endif
314
315	if (ev_method)	477	if (!ev_method)
		478	{
		479	#if EV_USE_MONOTONIC
316	{	480	{
		481	struct timespec ts;
		482	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
		483	have_monotonic = 1;
		484	}
		485	#endif
		486
		487	ev_now = ev_time ();
		488	now = get_clock ();
		489	now_floor = now;
		490	diff = ev_now - now;
		491
		492	if (pipe (sigpipe))
		493	return 0;
		494
		495	ev_method = EVMETHOD_NONE;
		496	#if EV_USE_EPOLL
		497	if (ev_method == EVMETHOD_NONE) epoll_init (flags);
		498	#endif
		499	#if EV_USE_SELECT
		500	if (ev_method == EVMETHOD_NONE) select_init (flags);
		501	#endif
		502
		503	if (ev_method)
		504	{
317	evw_init (&sigev, sigcb, 0);	505	ev_watcher_init (&sigev, sigcb);
318	siginit ();	506	siginit ();
		507
		508	ev_signal_init (&childev, childcb, SIGCHLD);
		509	ev_signal_start (&childev);
		510	}
319	}	511	}
320		512
321	return ev_method;	513	return ev_method;
322	}	514	}
323		515
324	/*****************************************************************************/	516	/*****************************************************************************/
325		517
326	void ev_prefork (void)	518	void
		519	ev_fork_prepare (void)
327	{	520	{
		521	/* nop */
328	}	522	}
329		523
		524	void
330	void ev_postfork_parent (void)	525	ev_fork_parent (void)
331	{	526	{
		527	/* nop */
332	}	528	}
333		529
		530	void
334	void ev_postfork_child (void)	531	ev_fork_child (void)
335	{	532	{
336	#if HAVE_EPOLL	533	#if EV_USE_EPOLL
337	if (ev_method == EVMETHOD_EPOLL)	534	if (ev_method == EVMETHOD_EPOLL)
338	epoll_postfork_child ();	535	epoll_postfork_child ();
339	#endif	536	#endif
340		537
341	evio_stop (&sigev);	538	ev_io_stop (&sigev);
342	close (sigpipe [0]);	539	close (sigpipe [0]);
343	close (sigpipe [1]);	540	close (sigpipe [1]);
344	pipe (sigpipe);	541	pipe (sigpipe);
345	siginit ();	542	siginit ();
346	}	543	}
347		544
348	/*****************************************************************************/	545	/*****************************************************************************/
349		546
350	static void	547	static void
351	fd_reify (void)
352	{
353	int i;
354
355	for (i = 0; i < fdchangecnt; ++i)
356	{
357	int fd = fdchanges [i];
358	ANFD *anfd = anfds + fd;
359	struct ev_io *w;
360
361	int wev = 0;
362
363	for (w = anfd->head; w; w = w->next)
364	wev \|= w->events;
365
366	if (anfd->wev != wev)
367	{
368	method_modify (fd, anfd->wev, wev);
369	anfd->wev = wev;
370	}
371	}
372
373	fdchangecnt = 0;
374	}
375
376	static void
377	call_pending ()	548	call_pending (void)
378	{	549	{
379	int i;	550	while (pendingcnt)
380
381	for (i = 0; i < pendingcnt; ++i)
382	{	551	{
383	ANPENDING *p = pendings + i;	552	ANPENDING *p = pendings + --pendingcnt;
384		553
385	if (p->w)	554	if (p->w)
386	{	555	{
387	p->w->pending = 0;	556	p->w->pending = 0;
388	p->w->cb (p->w, p->events);	557	p->w->cb (p->w, p->events);
389	}	558	}
390	}	559	}
391
392	pendingcnt = 0;
393	}	560	}
394		561
395	static void	562	static void
396	timers_reify (struct ev_timer **timers, int timercnt, ev_tstamp now)	563	timers_reify (void)
397	{	564	{
398	while (timercnt && timers [0]->at <= now)	565	while (timercnt && timers [0]->at <= now)
399	{	566	{
400	struct ev_timer *w = timers [0];	567	struct ev_timer *w = timers [0];
401		568
402	/* first reschedule or stop timer */	569	/* first reschedule or stop timer */
403	if (w->repeat)	570	if (w->repeat)
404	{	571	{
405	if (w->is_abs)	572	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
406	w->at += floor ((now - w->at) / w->repeat + 1.) * w->repeat;
407	else
408	w->at = now + w->repeat;	573	w->at = now + w->repeat;
409
410	assert (w->at > now);
411
412	downheap (timers, timercnt, 0);	574	downheap ((WT *)timers, timercnt, 0);
413	}	575	}
414	else	576	else
415	{
416	evtimer_stop (w); /* nonrepeating: stop timer */	577	ev_timer_stop (w); /* nonrepeating: stop timer */
417	--timercnt; /* maybe pass by reference instead? */	578
		579	event ((W)w, EV_TIMEOUT);
		580	}
		581	}
		582
		583	static void
		584	periodics_reify (void)
		585	{
		586	while (periodiccnt && periodics [0]->at <= ev_now)
		587	{
		588	struct ev_periodic *w = periodics [0];
		589
		590	/* first reschedule or stop timer */
		591	if (w->interval)
418	}	592	{
		593	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;
		594	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
		595	downheap ((WT *)periodics, periodiccnt, 0);
		596	}
		597	else
		598	ev_periodic_stop (w); /* nonrepeating: stop timer */
419		599
420	event ((struct ev_watcher *)w, EV_TIMEOUT);	600	event ((W)w, EV_PERIODIC);
421	}	601	}
422	}	602	}
423		603
424	static void	604	static void
425	time_update ()	605	periodics_reschedule (ev_tstamp diff)
426	{	606	{
427	int i;	607	int i;
428	ev_now = ev_time ();
429		608
430	if (have_monotonic)	609	/* adjust periodics after time jump */
		610	for (i = 0; i < periodiccnt; ++i)
431	{	611	{
432	ev_tstamp odiff = diff;	612	struct ev_periodic *w = periodics [i];
433		613
434	/* detecting time jumps is much more difficult */	614	if (w->interval)
435	for (i = 2; --i; ) /* loop a few times, before making important decisions */
436	{
437	now = get_clock ();
438	diff = ev_now - now;
439
440	if (fabs (odiff - diff) < MIN_TIMEJUMP)
441	return; /* all is well */
442
443	ev_now = ev_time ();
444	}	615	{
		616	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
445		617
446	/* time jump detected, reschedule atimers */	618	if (fabs (diff) >= 1e-4)
447	for (i = 0; i < atimercnt; ++i)	619	{
		620	ev_periodic_stop (w);
		621	ev_periodic_start (w);
		622
		623	i = 0; /* restart loop, inefficient, but time jumps should be rare */
		624	}
448	{	625	}
449	struct ev_timer *w = atimers [i];	626	}
450	w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat;	627	}
451	}	628
		629	static int
		630	time_update_monotonic (void)
		631	{
		632	now = get_clock ();
		633
		634	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))
		635	{
		636	ev_now = now + diff;
		637	return 0;
452	}	638	}
453	else	639	else
454	{	640	{
		641	now_floor = now;
		642	ev_now = ev_time ();
		643	return 1;
		644	}
		645	}
		646
		647	static void
		648	time_update (void)
		649	{
		650	int i;
		651
		652	#if EV_USE_MONOTONIC
		653	if (expect_true (have_monotonic))
		654	{
		655	if (time_update_monotonic ())
		656	{
		657	ev_tstamp odiff = diff;
		658
		659	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		660	{
		661	diff = ev_now - now;
		662
		663	if (fabs (odiff - diff) < MIN_TIMEJUMP)
		664	return; /* all is well */
		665
		666	ev_now = ev_time ();
		667	now = get_clock ();
		668	now_floor = now;
		669	}
		670
		671	periodics_reschedule (diff - odiff);
		672	/* no timer adjustment, as the monotonic clock doesn't jump */
		673	}
		674	}
		675	else
		676	#endif
		677	{
		678	ev_now = ev_time ();
		679
455	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	680	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
456	/* time jump detected, adjust rtimers */	681	{
		682	periodics_reschedule (ev_now - now);
		683
		684	/* adjust timers. this is easy, as the offset is the same for all */
457	for (i = 0; i < rtimercnt; ++i)	685	for (i = 0; i < timercnt; ++i)
458	rtimers [i]->at += ev_now - now;	686	timers [i]->at += diff;
		687	}
459		688
460	now = ev_now;	689	now = ev_now;
461	}	690	}
462	}	691	}
463		692
464	int ev_loop_done;	693	int ev_loop_done;
465		694
466	void ev_loop (int flags)	695	void ev_loop (int flags)
467	{	696	{
468	double block;	697	double block;
469	ev_loop_done = flags & EVLOOP_ONESHOT;	698	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
470
471	if (checkcnt)
472	{
473	queue_events (checks, checkcnt, EV_CHECK);
474	call_pending ();
475	}
476		699
477	do	700	do
478	{	701	{
		702	/* queue check watchers (and execute them) */
		703	if (expect_false (preparecnt))
		704	{
		705	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
		706	call_pending ();
		707	}
		708
479	/* update fd-related kernel structures */	709	/* update fd-related kernel structures */
480	fd_reify ();	710	fd_reify ();
481		711
482	/* calculate blocking time */	712	/* calculate blocking time */
		713
		714	/* we only need this for !monotonic clockor timers, but as we basically
		715	always have timers, we just calculate it always */
		716	#if EV_USE_MONOTONIC
		717	if (expect_true (have_monotonic))
		718	time_update_monotonic ();
		719	else
		720	#endif
		721	{
		722	ev_now = ev_time ();
		723	now = ev_now;
		724	}
		725
483	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	726	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
484	block = 0.;	727	block = 0.;
485	else	728	else
486	{	729	{
487	block = MAX_BLOCKTIME;	730	block = MAX_BLOCKTIME;
488		731
489	if (rtimercnt)	732	if (timercnt)
490	{	733	{
491	ev_tstamp to = rtimers [0]->at - get_clock () + method_fudge;	734	ev_tstamp to = timers [0]->at - now + method_fudge;
492	if (block > to) block = to;	735	if (block > to) block = to;
493	}	736	}
494		737
495	if (atimercnt)	738	if (periodiccnt)
496	{	739	{
497	ev_tstamp to = atimers [0]->at - ev_time () + method_fudge;	740	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;
498	if (block > to) block = to;	741	if (block > to) block = to;
499	}	742	}
500		743
501	if (block < 0.) block = 0.;	744	if (block < 0.) block = 0.;
502	}	745	}
…		…
505		748
506	/* update ev_now, do magic */	749	/* update ev_now, do magic */
507	time_update ();	750	time_update ();
508		751
509	/* queue pending timers and reschedule them */	752	/* queue pending timers and reschedule them */
510	/* absolute timers first */	753	timers_reify (); /* relative timers called last */
511	timers_reify (atimers, atimercnt, ev_now);	754	periodics_reify (); /* absolute timers called first */
512	/* relative timers second */
513	timers_reify (rtimers, rtimercnt, now);
514		755
515	/* queue idle watchers unless io or timers are pending */	756	/* queue idle watchers unless io or timers are pending */
516	if (!pendingcnt)	757	if (!pendingcnt)
517	queue_events (idles, idlecnt, EV_IDLE);	758	queue_events ((W *)idles, idlecnt, EV_IDLE);
518		759
519	/* queue check and possibly idle watchers */	760	/* queue check watchers, to be executed first */
		761	if (checkcnt)
520	queue_events (checks, checkcnt, EV_CHECK);	762	queue_events ((W *)checks, checkcnt, EV_CHECK);
521		763
522	call_pending ();	764	call_pending ();
523	}	765	}
524	while (!ev_loop_done);	766	while (!ev_loop_done);
525	}
526		767
527	/*****************************************************************************/	768	if (ev_loop_done != 2)
		769	ev_loop_done = 0;
		770	}
528		771
		772	/*****************************************************************************/
		773
529	static void	774	static void
530	wlist_add (struct ev_watcher_list *head, struct ev_watcher_list elem)	775	wlist_add (WL *head, WL elem)
531	{	776	{
532	elem->next = *head;	777	elem->next = *head;
533	*head = elem;	778	*head = elem;
534	}	779	}
535		780
536	static void	781	static void
537	wlist_del (struct ev_watcher_list *head, struct ev_watcher_list elem)	782	wlist_del (WL *head, WL elem)
538	{	783	{
539	while (*head)	784	while (*head)
540	{	785	{
541	if (*head == elem)	786	if (*head == elem)
542	{	787	{
…		…
547	head = &(*head)->next;	792	head = &(*head)->next;
548	}	793	}
549	}	794	}
550		795
551	static void	796	static void
552	ev_start (struct ev_watcher *w, int active)	797	ev_clear_pending (W w)
553	{	798	{
		799	if (w->pending)
		800	{
		801	pendings [w->pending - 1].w = 0;
554	w->pending = 0;	802	w->pending = 0;
		803	}
		804	}
		805
		806	static void
		807	ev_start (W w, int active)
		808	{
555	w->active = active;	809	w->active = active;
556	}	810	}
557		811
558	static void	812	static void
559	ev_stop (struct ev_watcher *w)	813	ev_stop (W w)
560	{	814	{
561	if (w->pending)
562	pendings [w->pending - 1].w = 0;
563
564	w->active = 0;	815	w->active = 0;
565	/* nop */
566	}	816	}
567		817
568	/*****************************************************************************/	818	/*****************************************************************************/
569		819
570	void	820	void
571	evio_start (struct ev_io *w)	821	ev_io_start (struct ev_io *w)
572	{	822	{
		823	int fd = w->fd;
		824
573	if (ev_is_active (w))	825	if (ev_is_active (w))
574	return;	826	return;
575		827
576	int fd = w->fd;	828	assert (("ev_io_start called with negative fd", fd >= 0));
577		829
578	ev_start ((struct ev_watcher *)w, 1);	830	ev_start ((W)w, 1);
579	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	831	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
580	wlist_add ((struct ev_watcher_list *)&anfds[fd].head, (struct ev_watcher_list )w);	832	wlist_add ((WL *)&anfds[fd].head, (WL)w);
581		833
582	++fdchangecnt;	834	fd_change (fd);
583	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
584	fdchanges [fdchangecnt - 1] = fd;
585	}	835	}
586		836
587	void	837	void
588	evio_stop (struct ev_io *w)	838	ev_io_stop (struct ev_io *w)
589	{	839	{
		840	ev_clear_pending ((W)w);
590	if (!ev_is_active (w))	841	if (!ev_is_active (w))
591	return;	842	return;
592		843
593	wlist_del ((struct ev_watcher_list *)&anfds[w->fd].head, (struct ev_watcher_list )w);	844	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
594	ev_stop ((struct ev_watcher *)w);	845	ev_stop ((W)w);
595		846
596	++fdchangecnt;	847	fd_change (w->fd);
597	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
598	fdchanges [fdchangecnt - 1] = w->fd;
599	}	848	}
600		849
601	void	850	void
602	evtimer_start (struct ev_timer *w)	851	ev_timer_start (struct ev_timer *w)
603	{	852	{
604	if (ev_is_active (w))	853	if (ev_is_active (w))
605	return;	854	return;
606		855
607	if (w->is_abs)	856	w->at += now;
		857
		858	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
		859
		860	ev_start ((W)w, ++timercnt);
		861	array_needsize (timers, timermax, timercnt, );
		862	timers [timercnt - 1] = w;
		863	upheap ((WT *)timers, timercnt - 1);
		864	}
		865
		866	void
		867	ev_timer_stop (struct ev_timer *w)
		868	{
		869	ev_clear_pending ((W)w);
		870	if (!ev_is_active (w))
		871	return;
		872
		873	if (w->active < timercnt--)
		874	{
		875	timers [w->active - 1] = timers [timercnt];
		876	downheap ((WT *)timers, timercnt, w->active - 1);
608	{	877	}
609	/* this formula differs from the one in timer_reify becuse we do not round up */	878
		879	w->at = w->repeat;
		880
		881	ev_stop ((W)w);
		882	}
		883
		884	void
		885	ev_timer_again (struct ev_timer *w)
		886	{
		887	if (ev_is_active (w))
		888	{
610	if (w->repeat)	889	if (w->repeat)
		890	{
		891	w->at = now + w->repeat;
		892	downheap ((WT *)timers, timercnt, w->active - 1);
		893	}
		894	else
		895	ev_timer_stop (w);
		896	}
		897	else if (w->repeat)
		898	ev_timer_start (w);
		899	}
		900
		901	void
		902	ev_periodic_start (struct ev_periodic *w)
		903	{
		904	if (ev_is_active (w))
		905	return;
		906
		907	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
		908
		909	/* this formula differs from the one in periodic_reify because we do not always round up */
		910	if (w->interval)
611	w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat;	911	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
612		912
613	ev_start ((struct ev_watcher *)w, ++atimercnt);	913	ev_start ((W)w, ++periodiccnt);
614	array_needsize (atimers, atimermax, atimercnt, );	914	array_needsize (periodics, periodicmax, periodiccnt, );
615	atimers [atimercnt - 1] = w;	915	periodics [periodiccnt - 1] = w;
616	upheap (atimers, atimercnt - 1);	916	upheap ((WT *)periodics, periodiccnt - 1);
617	}
618	else
619	{
620	w->at += now;
621
622	ev_start ((struct ev_watcher *)w, ++rtimercnt);
623	array_needsize (rtimers, rtimermax, rtimercnt, );
624	rtimers [rtimercnt - 1] = w;
625	upheap (rtimers, rtimercnt - 1);
626	}
627
628	}	917	}
629		918
630	void	919	void
631	evtimer_stop (struct ev_timer *w)	920	ev_periodic_stop (struct ev_periodic *w)
632	{	921	{
		922	ev_clear_pending ((W)w);
633	if (!ev_is_active (w))	923	if (!ev_is_active (w))
634	return;	924	return;
635		925
636	if (w->is_abs)
637	{
638	if (w->active < atimercnt--)	926	if (w->active < periodiccnt--)
639	{
640	atimers [w->active - 1] = atimers [atimercnt];
641	downheap (atimers, atimercnt, w->active - 1);
642	}
643	}	927	{
644	else	928	periodics [w->active - 1] = periodics [periodiccnt];
		929	downheap ((WT *)periodics, periodiccnt, w->active - 1);
645	{	930	}
646	if (w->active < rtimercnt--)
647	{
648	rtimers [w->active - 1] = rtimers [rtimercnt];
649	downheap (rtimers, rtimercnt, w->active - 1);
650	}
651	}
652		931
653	ev_stop ((struct ev_watcher *)w);	932	ev_stop ((W)w);
654	}	933	}
655		934
656	void	935	void
657	evsignal_start (struct ev_signal *w)	936	ev_signal_start (struct ev_signal *w)
658	{	937	{
659	if (ev_is_active (w))	938	if (ev_is_active (w))
660	return;	939	return;
661		940
662	ev_start ((struct ev_watcher *)w, 1);	941	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		942
		943	ev_start ((W)w, 1);
663	array_needsize (signals, signalmax, w->signum, signals_init);	944	array_needsize (signals, signalmax, w->signum, signals_init);
664	wlist_add ((struct ev_watcher_list *)&signals [w->signum - 1].head, (struct ev_watcher_list )w);	945	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
665		946
666	if (!w->next)	947	if (!w->next)
667	{	948	{
668	struct sigaction sa;	949	struct sigaction sa;
669	sa.sa_handler = sighandler;	950	sa.sa_handler = sighandler;
…		…
672	sigaction (w->signum, &sa, 0);	953	sigaction (w->signum, &sa, 0);
673	}	954	}
674	}	955	}
675		956
676	void	957	void
677	evsignal_stop (struct ev_signal *w)	958	ev_signal_stop (struct ev_signal *w)
678	{	959	{
		960	ev_clear_pending ((W)w);
679	if (!ev_is_active (w))	961	if (!ev_is_active (w))
680	return;	962	return;
681		963
682	wlist_del ((struct ev_watcher_list *)&signals [w->signum - 1].head, (struct ev_watcher_list )w);	964	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
683	ev_stop ((struct ev_watcher *)w);	965	ev_stop ((W)w);
684		966
685	if (!signals [w->signum - 1].head)	967	if (!signals [w->signum - 1].head)
686	signal (w->signum, SIG_DFL);	968	signal (w->signum, SIG_DFL);
687	}	969	}
688		970
		971	void
689	void evidle_start (struct ev_idle *w)	972	ev_idle_start (struct ev_idle *w)
690	{	973	{
691	if (ev_is_active (w))	974	if (ev_is_active (w))
692	return;	975	return;
693		976
694	ev_start ((struct ev_watcher *)w, ++idlecnt);	977	ev_start ((W)w, ++idlecnt);
695	array_needsize (idles, idlemax, idlecnt, );	978	array_needsize (idles, idlemax, idlecnt, );
696	idles [idlecnt - 1] = w;	979	idles [idlecnt - 1] = w;
697	}	980	}
698		981
		982	void
699	void evidle_stop (struct ev_idle *w)	983	ev_idle_stop (struct ev_idle *w)
700	{	984	{
		985	ev_clear_pending ((W)w);
		986	if (ev_is_active (w))
		987	return;
		988
701	idles [w->active - 1] = idles [--idlecnt];	989	idles [w->active - 1] = idles [--idlecnt];
702	ev_stop ((struct ev_watcher *)w);	990	ev_stop ((W)w);
703	}	991	}
704		992
705	void evcheck_start (struct ev_check *w)	993	void
		994	ev_prepare_start (struct ev_prepare *w)
706	{	995	{
707	if (ev_is_active (w))	996	if (ev_is_active (w))
708	return;	997	return;
709		998
710	ev_start ((struct ev_watcher *)w, ++checkcnt);	999	ev_start ((W)w, ++preparecnt);
		1000	array_needsize (prepares, preparemax, preparecnt, );
		1001	prepares [preparecnt - 1] = w;
		1002	}
		1003
		1004	void
		1005	ev_prepare_stop (struct ev_prepare *w)
		1006	{
		1007	ev_clear_pending ((W)w);
		1008	if (ev_is_active (w))
		1009	return;
		1010
		1011	prepares [w->active - 1] = prepares [--preparecnt];
		1012	ev_stop ((W)w);
		1013	}
		1014
		1015	void
		1016	ev_check_start (struct ev_check *w)
		1017	{
		1018	if (ev_is_active (w))
		1019	return;
		1020
		1021	ev_start ((W)w, ++checkcnt);
711	array_needsize (checks, checkmax, checkcnt, );	1022	array_needsize (checks, checkmax, checkcnt, );
712	checks [checkcnt - 1] = w;	1023	checks [checkcnt - 1] = w;
713	}	1024	}
714		1025
		1026	void
715	void evcheck_stop (struct ev_check *w)	1027	ev_check_stop (struct ev_check *w)
716	{	1028	{
		1029	ev_clear_pending ((W)w);
		1030	if (ev_is_active (w))
		1031	return;
		1032
717	checks [w->active - 1] = checks [--checkcnt];	1033	checks [w->active - 1] = checks [--checkcnt];
718	ev_stop ((struct ev_watcher *)w);	1034	ev_stop ((W)w);
719	}	1035	}
720		1036
		1037	void
		1038	ev_child_start (struct ev_child *w)
		1039	{
		1040	if (ev_is_active (w))
		1041	return;
		1042
		1043	ev_start ((W)w, 1);
		1044	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
		1045	}
		1046
		1047	void
		1048	ev_child_stop (struct ev_child *w)
		1049	{
		1050	ev_clear_pending ((W)w);
		1051	if (ev_is_active (w))
		1052	return;
		1053
		1054	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
		1055	ev_stop ((W)w);
		1056	}
		1057
721	/*****************************************************************************/	1058	/*****************************************************************************/
		1059
		1060	struct ev_once
		1061	{
		1062	struct ev_io io;
		1063	struct ev_timer to;
		1064	void (cb)(int revents, void arg);
		1065	void *arg;
		1066	};
		1067
		1068	static void
		1069	once_cb (struct ev_once *once, int revents)
		1070	{
		1071	void (cb)(int revents, void arg) = once->cb;
		1072	void *arg = once->arg;
		1073
		1074	ev_io_stop (&once->io);
		1075	ev_timer_stop (&once->to);
		1076	free (once);
		1077
		1078	cb (revents, arg);
		1079	}
		1080
		1081	static void
		1082	once_cb_io (struct ev_io *w, int revents)
		1083	{
		1084	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
		1085	}
		1086
		1087	static void
		1088	once_cb_to (struct ev_timer *w, int revents)
		1089	{
		1090	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
		1091	}
		1092
		1093	void
		1094	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
		1095	{
		1096	struct ev_once *once = malloc (sizeof (struct ev_once));
		1097
		1098	if (!once)
		1099	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
		1100	else
		1101	{
		1102	once->cb = cb;
		1103	once->arg = arg;
		1104
		1105	ev_watcher_init (&once->io, once_cb_io);
		1106	if (fd >= 0)
		1107	{
		1108	ev_io_set (&once->io, fd, events);
		1109	ev_io_start (&once->io);
		1110	}
		1111
		1112	ev_watcher_init (&once->to, once_cb_to);
		1113	if (timeout >= 0.)
		1114	{
		1115	ev_timer_set (&once->to, timeout, 0.);
		1116	ev_timer_start (&once->to);
		1117	}
		1118	}
		1119	}
		1120
		1121	/*****************************************************************************/
		1122
722	#if 1	1123	#if 0
		1124
		1125	struct ev_io wio;
723		1126
724	static void	1127	static void
725	sin_cb (struct ev_io *w, int revents)	1128	sin_cb (struct ev_io *w, int revents)
726	{	1129	{
727	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);	1130	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
…		…
729		1132
730	static void	1133	static void
731	ocb (struct ev_timer *w, int revents)	1134	ocb (struct ev_timer *w, int revents)
732	{	1135	{
733	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);	1136	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
734	evtimer_stop (w);	1137	ev_timer_stop (w);
735	evtimer_start (w);	1138	ev_timer_start (w);
736	}	1139	}
737		1140
738	static void	1141	static void
739	scb (struct ev_signal *w, int revents)	1142	scb (struct ev_signal *w, int revents)
740	{	1143	{
741	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1144	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
		1145	ev_io_stop (&wio);
		1146	ev_io_start (&wio);
742	}	1147	}
743		1148
744	static void	1149	static void
745	gcb (struct ev_signal *w, int revents)	1150	gcb (struct ev_signal *w, int revents)
746	{	1151	{
747	fprintf (stderr, "generic %x\n", revents);	1152	fprintf (stderr, "generic %x\n", revents);
		1153
748	}	1154	}
749		1155
750	int main (void)	1156	int main (void)
751	{	1157	{
752	struct ev_io sin;
753
754	ev_init (0);	1158	ev_init (0);
755		1159
756	evw_init (&sin, sin_cb, 55);
757	evio_set (&sin, 0, EV_READ);	1160	ev_io_init (&wio, sin_cb, 0, EV_READ);
758	evio_start (&sin);	1161	ev_io_start (&wio);
759		1162
760	struct ev_timer t[10000];	1163	struct ev_timer t[10000];
761		1164
762	#if 0	1165	#if 0
763	int i;	1166	int i;
764	for (i = 0; i < 10000; ++i)	1167	for (i = 0; i < 10000; ++i)
765	{	1168	{
766	struct ev_timer *w = t + i;	1169	struct ev_timer *w = t + i;
767	evw_init (w, ocb, i);	1170	ev_watcher_init (w, ocb, i);
768	evtimer_set_abs (w, drand48 (), 0.99775533);	1171	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
769	evtimer_start (w);	1172	ev_timer_start (w);
770	if (drand48 () < 0.5)	1173	if (drand48 () < 0.5)
771	evtimer_stop (w);	1174	ev_timer_stop (w);
772	}	1175	}
773	#endif	1176	#endif
774		1177
775	struct ev_timer t1;	1178	struct ev_timer t1;
776	evw_init (&t1, ocb, 0);	1179	ev_timer_init (&t1, ocb, 5, 10);
777	evtimer_set_abs (&t1, 5, 10);
778	evtimer_start (&t1);	1180	ev_timer_start (&t1);
779		1181
780	struct ev_signal sig;	1182	struct ev_signal sig;
781	evw_init (&sig, scb, 65535);
782	evsignal_set (&sig, SIGQUIT);	1183	ev_signal_init (&sig, scb, SIGQUIT);
783	evsignal_start (&sig);	1184	ev_signal_start (&sig);
784		1185
785	struct ev_check cw;	1186	struct ev_check cw;
786	evw_init (&cw, gcb, 0);	1187	ev_check_init (&cw, gcb);
787	evcheck_start (&cw);	1188	ev_check_start (&cw);
788		1189
789	struct ev_idle iw;	1190	struct ev_idle iw;
790	evw_init (&iw, gcb, 0);	1191	ev_idle_init (&iw, gcb);
791	evidle_start (&iw);	1192	ev_idle_start (&iw);
792		1193
793	ev_loop (0);	1194	ev_loop (0);
794		1195
795	return 0;	1196	return 0;
796	}	1197	}

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Comparing libev/ev.c (file contents): Revision 1.9 by root, Wed Oct 31 07:24:17 2007 UTC vs. Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.9 by root, Wed Oct 31 07:24:17 2007 UTC vs.
Revision 1.40 by root, Fri Nov 2 11:02:23 2007 UTC