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

Comparing libev/ev.c (file contents):
Revision 1.10 by root, Wed Oct 31 07:36:03 2007 UTC vs.
Revision 1.42 by root, Fri Nov 2 20:05:05 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
14	#ifndef HAVE_MONOTONIC	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_POLL
		62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
		63	#endif
		64
		65	#ifndef EV_USE_EPOLL
		66	# define EV_USE_EPOLL 0
		67	#endif
		68
		69	#ifndef EV_USE_REALTIME
		70	# define EV_USE_REALTIME 1
		71	#endif
		72
		73	/**/
		74
15	# ifdef CLOCK_MONOTONIC	75	#ifndef CLOCK_MONOTONIC
		76	# undef EV_USE_MONOTONIC
16	# define HAVE_MONOTONIC 1	77	# define EV_USE_MONOTONIC 0
17	# endif	78	#endif
18	#endif
19		79
20	#ifndef HAVE_SELECT
21	# define HAVE_SELECT 1
22	#endif
23
24	#ifndef HAVE_EPOLL
25	# define HAVE_EPOLL 0
26	#endif
27
28	#ifndef HAVE_REALTIME	80	#ifndef CLOCK_REALTIME
29	# define HAVE_REALTIME 1 /* posix requirement, but might be slower */	81	# undef EV_USE_REALTIME
		82	# define EV_USE_REALTIME 0
30	#endif	83	#endif
		84
		85	/**/
31		86
32	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	87	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
33	#define MAX_BLOCKTIME 60.	88	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
		89	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
		90	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
34		91
35	#include "ev.h"	92	#include "ev.h"
36		93
37	struct ev_watcher {	94	#if __GNUC__ >= 3
38	EV_WATCHER (ev_watcher);	95	# define expect(expr,value) __builtin_expect ((expr),(value))
39	};	96	# define inline inline
		97	#else
		98	# define expect(expr,value) (expr)
		99	# define inline static
		100	#endif
40		101
41	struct ev_watcher_list {	102	#define expect_false(expr) expect ((expr) != 0, 0)
42	EV_WATCHER_LIST (ev_watcher_list);	103	#define expect_true(expr) expect ((expr) != 0, 1)
43	};	104
		105	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		106	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
44		107
45	typedef struct ev_watcher *W;	108	typedef struct ev_watcher *W;
46	typedef struct ev_watcher_list *WL;	109	typedef struct ev_watcher_list *WL;
		110	typedef struct ev_watcher_time *WT;
47		111
48	static ev_tstamp now, diff; /* monotonic clock */	112	static ev_tstamp now_floor, now, diff; /* monotonic clock */
49	ev_tstamp ev_now;	113	ev_tstamp ev_now;
50	int ev_method;	114	int ev_method;
51		115
52	static int have_monotonic; /* runtime */	116	static int have_monotonic; /* runtime */
53		117
58	/*****************************************************************************/	122	/*****************************************************************************/
59		123
60	ev_tstamp	124	ev_tstamp
61	ev_time (void)	125	ev_time (void)
62	{	126	{
63	#if HAVE_REALTIME	127	#if EV_USE_REALTIME
64	struct timespec ts;	128	struct timespec ts;
65	clock_gettime (CLOCK_REALTIME, &ts);	129	clock_gettime (CLOCK_REALTIME, &ts);
66	return ts.tv_sec + ts.tv_nsec * 1e-9;	130	return ts.tv_sec + ts.tv_nsec * 1e-9;
67	#else	131	#else
68	struct timeval tv;	132	struct timeval tv;
…		…
72	}	136	}
73		137
74	static ev_tstamp	138	static ev_tstamp
75	get_clock (void)	139	get_clock (void)
76	{	140	{
77	#if HAVE_MONOTONIC	141	#if EV_USE_MONOTONIC
78	if (have_monotonic)	142	if (expect_true (have_monotonic))
79	{	143	{
80	struct timespec ts;	144	struct timespec ts;
81	clock_gettime (CLOCK_MONOTONIC, &ts);	145	clock_gettime (CLOCK_MONOTONIC, &ts);
82	return ts.tv_sec + ts.tv_nsec * 1e-9;	146	return ts.tv_sec + ts.tv_nsec * 1e-9;
83	}	147	}
84	#endif	148	#endif
85		149
86	return ev_time ();	150	return ev_time ();
87	}	151	}
88		152
		153	#define array_roundsize(base,n) ((n) \| 4 & ~3)
		154
89	#define array_needsize(base,cur,cnt,init) \	155	#define array_needsize(base,cur,cnt,init) \
90	if ((cnt) > cur) \	156	if (expect_false ((cnt) > cur)) \
91	{ \	157	{ \
92	int newcnt = cur ? cur << 1 : 16; \	158	int newcnt = cur; \
93	fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\	159	do \
		160	{ \
		161	newcnt = array_roundsize (base, newcnt << 1); \
		162	} \
		163	while ((cnt) > newcnt); \
		164	\
94	base = realloc (base, sizeof (base) (newcnt)); \	165	base = realloc (base, sizeof (base) (newcnt)); \
95	init (base + cur, newcnt - cur); \	166	init (base + cur, newcnt - cur); \
96	cur = newcnt; \	167	cur = newcnt; \
97	}	168	}
98		169
99	/*****************************************************************************/	170	/*****************************************************************************/
100		171
101	typedef struct	172	typedef struct
102	{	173	{
103	struct ev_io *head;	174	struct ev_io *head;
104	unsigned char wev, rev; /* want, received event set */	175	unsigned char events;
		176	unsigned char reify;
105	} ANFD;	177	} ANFD;
106		178
107	static ANFD *anfds;	179	static ANFD *anfds;
108	static int anfdmax;	180	static int anfdmax;
109		181
110	static int *fdchanges;
111	static int fdchangemax, fdchangecnt;
112
113	static void	182	static void
114	anfds_init (ANFD *base, int count)	183	anfds_init (ANFD *base, int count)
115	{	184	{
116	while (count--)	185	while (count--)
117	{	186	{
118	base->head = 0;	187	base->head = 0;
119	base->wev = base->rev = EV_NONE;	188	base->events = EV_NONE;
		189	base->reify = 0;
		190
120	++base;	191	++base;
121	}	192	}
122	}	193	}
123		194
124	typedef struct	195	typedef struct
125	{	196	{
126	W w;	197	W w;
127	int events;	198	int events;
128	} ANPENDING;	199	} ANPENDING;
129		200
130	static ANPENDING *pendings;	201	static ANPENDING *pendings [NUMPRI];
131	static int pendingmax, pendingcnt;	202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
132		203
133	static void	204	static void
134	event (W w, int events)	205	event (W w, int events)
135	{	206	{
		207	if (w->pending)
		208	{
		209	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
		210	return;
		211	}
		212
136	w->pending = ++pendingcnt;	213	w->pending = ++pendingcnt [ABSPRI (w)];
137	array_needsize (pendings, pendingmax, pendingcnt, );	214	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
138	pendings [pendingcnt - 1].w = w;	215	pendings [ABSPRI (w)][w->pending - 1].w = w;
139	pendings [pendingcnt - 1].events = events;	216	pendings [ABSPRI (w)][w->pending - 1].events = events;
		217	}
		218
		219	static void
		220	queue_events (W *events, int eventcnt, int type)
		221	{
		222	int i;
		223
		224	for (i = 0; i < eventcnt; ++i)
		225	event (events [i], type);
140	}	226	}
141		227
142	static void	228	static void
143	fd_event (int fd, int events)	229	fd_event (int fd, int events)
144	{	230	{
…		…
152	if (ev)	238	if (ev)
153	event ((W)w, ev);	239	event ((W)w, ev);
154	}	240	}
155	}	241	}
156		242
		243	/*****************************************************************************/
		244
		245	static int *fdchanges;
		246	static int fdchangemax, fdchangecnt;
		247
157	static void	248	static void
158	queue_events (W *events, int eventcnt, int type)	249	fd_reify (void)
159	{	250	{
160	int i;	251	int i;
161		252
162	for (i = 0; i < eventcnt; ++i)	253	for (i = 0; i < fdchangecnt; ++i)
163	event (events [i], type);	254	{
164	}	255	int fd = fdchanges [i];
		256	ANFD *anfd = anfds + fd;
		257	struct ev_io *w;
165		258
166	/*****************************************************************************/	259	int events = 0;
167		260
		261	for (w = anfd->head; w; w = w->next)
		262	events \|= w->events;
		263
		264	anfd->reify = 0;
		265
		266	if (anfd->events != events)
		267	{
		268	method_modify (fd, anfd->events, events);
		269	anfd->events = events;
		270	}
		271	}
		272
		273	fdchangecnt = 0;
		274	}
		275
		276	static void
		277	fd_change (int fd)
		278	{
		279	if (anfds [fd].reify \|\| fdchangecnt < 0)
		280	return;
		281
		282	anfds [fd].reify = 1;
		283
		284	++fdchangecnt;
		285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
		286	fdchanges [fdchangecnt - 1] = fd;
		287	}
		288
		289	static void
		290	fd_kill (int fd)
		291	{
		292	struct ev_io *w;
		293
		294	printf ("killing fd %d\n", fd);//D
		295	while ((w = anfds [fd].head))
		296	{
		297	ev_io_stop (w);
		298	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		299	}
		300	}
		301
		302	/* called on EBADF to verify fds */
		303	static void
		304	fd_ebadf (void)
		305	{
		306	int fd;
		307
		308	for (fd = 0; fd < anfdmax; ++fd)
		309	if (anfds [fd].events)
		310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
		311	fd_kill (fd);
		312	}
		313
		314	/* called on ENOMEM in select/poll to kill some fds and retry */
		315	static void
		316	fd_enomem (void)
		317	{
		318	int fd = anfdmax;
		319
		320	while (fd--)
		321	if (anfds [fd].events)
		322	{
		323	close (fd);
		324	fd_kill (fd);
		325	return;
		326	}
		327	}
		328
		329	/*****************************************************************************/
		330
168	static struct ev_timer **atimers;	331	static struct ev_timer **timers;
169	static int atimermax, atimercnt;	332	static int timermax, timercnt;
170		333
171	static struct ev_timer **rtimers;	334	static struct ev_periodic **periodics;
172	static int rtimermax, rtimercnt;	335	static int periodicmax, periodiccnt;
173		336
174	static void	337	static void
175	upheap (struct ev_timer **timers, int k)	338	upheap (WT *timers, int k)
176	{	339	{
177	struct ev_timer *w = timers [k];	340	WT w = timers [k];
178		341
179	while (k && timers [k >> 1]->at > w->at)	342	while (k && timers [k >> 1]->at > w->at)
180	{	343	{
181	timers [k] = timers [k >> 1];	344	timers [k] = timers [k >> 1];
182	timers [k]->active = k + 1;	345	timers [k]->active = k + 1;
…		…
187	timers [k]->active = k + 1;	350	timers [k]->active = k + 1;
188		351
189	}	352	}
190		353
191	static void	354	static void
192	downheap (struct ev_timer **timers, int N, int k)	355	downheap (WT *timers, int N, int k)
193	{	356	{
194	struct ev_timer *w = timers [k];	357	WT w = timers [k];
195		358
196	while (k < (N >> 1))	359	while (k < (N >> 1))
197	{	360	{
198	int j = k << 1;	361	int j = k << 1;
199		362
…		…
215	/*****************************************************************************/	378	/*****************************************************************************/
216		379
217	typedef struct	380	typedef struct
218	{	381	{
219	struct ev_signal *head;	382	struct ev_signal *head;
220	sig_atomic_t gotsig;	383	sig_atomic_t volatile gotsig;
221	} ANSIG;	384	} ANSIG;
222		385
223	static ANSIG *signals;	386	static ANSIG *signals;
224	static int signalmax;	387	static int signalmax;
225		388
226	static int sigpipe [2];	389	static int sigpipe [2];
227	static sig_atomic_t gotsig;	390	static sig_atomic_t volatile gotsig;
228	static struct ev_io sigev;	391	static struct ev_io sigev;
229		392
230	static void	393	static void
231	signals_init (ANSIG *base, int count)	394	signals_init (ANSIG *base, int count)
232	{	395	{
233	while (count--)	396	while (count--)
234	{	397	{
235	base->head = 0;	398	base->head = 0;
236	base->gotsig = 0;	399	base->gotsig = 0;
		400
237	++base;	401	++base;
238	}	402	}
239	}	403	}
240		404
241	static void	405	static void
…		…
244	signals [signum - 1].gotsig = 1;	408	signals [signum - 1].gotsig = 1;
245		409
246	if (!gotsig)	410	if (!gotsig)
247	{	411	{
248	gotsig = 1;	412	gotsig = 1;
249	write (sigpipe [1], &gotsig, 1);	413	write (sigpipe [1], &signum, 1);
250	}	414	}
251	}	415	}
252		416
253	static void	417	static void
254	sigcb (struct ev_io *iow, int revents)	418	sigcb (struct ev_io *iow, int revents)
255	{	419	{
256	struct ev_signal *w;	420	struct ev_signal *w;
257	int sig;	421	int signum;
258		422
		423	read (sigpipe [0], &revents, 1);
259	gotsig = 0;	424	gotsig = 0;
260	read (sigpipe [0], &revents, 1);
261		425
262	for (sig = signalmax; sig--; )	426	for (signum = signalmax; signum--; )
263	if (signals [sig].gotsig)	427	if (signals [signum].gotsig)
264	{	428	{
265	signals [sig].gotsig = 0;	429	signals [signum].gotsig = 0;
266		430
267	for (w = signals [sig].head; w; w = w->next)	431	for (w = signals [signum].head; w; w = w->next)
268	event ((W)w, EV_SIGNAL);	432	event ((W)w, EV_SIGNAL);
269	}	433	}
270	}	434	}
271		435
272	static void	436	static void
…		…
277		441
278	/* rather than sort out wether we really need nb, set it */	442	/* rather than sort out wether we really need nb, set it */
279	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
280	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
281		445
282	evio_set (&sigev, sigpipe [0], EV_READ);	446	ev_io_set (&sigev, sigpipe [0], EV_READ);
283	evio_start (&sigev);	447	ev_io_start (&sigev);
284	}	448	}
285		449
286	/*****************************************************************************/	450	/*****************************************************************************/
287		451
288	static struct ev_idle **idles;	452	static struct ev_idle **idles;
289	static int idlemax, idlecnt;	453	static int idlemax, idlecnt;
290		454
		455	static struct ev_prepare **prepares;
		456	static int preparemax, preparecnt;
		457
291	static struct ev_check **checks;	458	static struct ev_check **checks;
292	static int checkmax, checkcnt;	459	static int checkmax, checkcnt;
293		460
294	/*****************************************************************************/	461	/*****************************************************************************/
295		462
		463	static struct ev_child *childs [PID_HASHSIZE];
		464	static struct ev_signal childev;
		465
		466	#ifndef WCONTINUED
		467	# define WCONTINUED 0
		468	#endif
		469
		470	static void
		471	childcb (struct ev_signal *sw, int revents)
		472	{
		473	struct ev_child *w;
		474	int pid, status;
		475
		476	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)
		477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)
		478	if (w->pid == pid \|\| !w->pid)
		479	{
		480	w->status = status;
		481	event ((W)w, EV_CHILD);
		482	}
		483	}
		484
		485	/*****************************************************************************/
		486
296	#if HAVE_EPOLL	487	#if EV_USE_EPOLL
297	# include "ev_epoll.c"	488	# include "ev_epoll.c"
298	#endif	489	#endif
		490	#if EV_USE_POLL
		491	# include "ev_poll.c"
		492	#endif
299	#if HAVE_SELECT	493	#if EV_USE_SELECT
300	# include "ev_select.c"	494	# include "ev_select.c"
301	#endif	495	#endif
302		496
		497	int
		498	ev_version_major (void)
		499	{
		500	return EV_VERSION_MAJOR;
		501	}
		502
		503	int
		504	ev_version_minor (void)
		505	{
		506	return EV_VERSION_MINOR;
		507	}
		508
		509	/* return true if we are running with elevated privileges and ignore env variables */
		510	static int
		511	enable_secure ()
		512	{
		513	return getuid () != geteuid ()
		514	\|\| getgid () != getegid ();
		515	}
		516
303	int ev_init (int flags)	517	int ev_init (int methods)
304	{	518	{
305	#if HAVE_MONOTONIC
306	{
307	struct timespec ts;
308	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
309	have_monotonic = 1;
310	}
311	#endif
312
313	ev_now = ev_time ();
314	now = get_clock ();
315	diff = ev_now - now;
316
317	if (pipe (sigpipe))
318	return 0;
319
320	ev_method = EVMETHOD_NONE;
321	#if HAVE_EPOLL
322	if (ev_method == EVMETHOD_NONE) epoll_init (flags);
323	#endif
324	#if HAVE_SELECT
325	if (ev_method == EVMETHOD_NONE) select_init (flags);
326	#endif
327
328	if (ev_method)	519	if (!ev_method)
		520	{
		521	#if EV_USE_MONOTONIC
329	{	522	{
		523	struct timespec ts;
		524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
		525	have_monotonic = 1;
		526	}
		527	#endif
		528
		529	ev_now = ev_time ();
		530	now = get_clock ();
		531	now_floor = now;
		532	diff = ev_now - now;
		533
		534	if (pipe (sigpipe))
		535	return 0;
		536
		537	if (methods == EVMETHOD_AUTO)
		538	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		539	methods = atoi (getenv ("LIBEV_METHODS"));
		540	else
		541	methods = EVMETHOD_ANY;
		542
		543	ev_method = 0;
		544	#if EV_USE_EPOLL
		545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
		546	#endif
		547	#if EV_USE_POLL
		548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
		549	#endif
		550	#if EV_USE_SELECT
		551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
		552	#endif
		553
		554	if (ev_method)
		555	{
330	evw_init (&sigev, sigcb, 0);	556	ev_watcher_init (&sigev, sigcb);
331	siginit ();	557	siginit ();
		558
		559	ev_signal_init (&childev, childcb, SIGCHLD);
		560	ev_signal_start (&childev);
		561	}
332	}	562	}
333		563
334	return ev_method;	564	return ev_method;
335	}	565	}
336		566
337	/*****************************************************************************/	567	/*****************************************************************************/
338		568
339	void ev_prefork (void)	569	void
		570	ev_fork_prepare (void)
340	{	571	{
		572	/* nop */
341	}	573	}
342		574
		575	void
343	void ev_postfork_parent (void)	576	ev_fork_parent (void)
344	{	577	{
		578	/* nop */
345	}	579	}
346		580
		581	void
347	void ev_postfork_child (void)	582	ev_fork_child (void)
348	{	583	{
349	#if HAVE_EPOLL	584	#if EV_USE_EPOLL
350	if (ev_method == EVMETHOD_EPOLL)	585	if (ev_method == EVMETHOD_EPOLL)
351	epoll_postfork_child ();	586	epoll_postfork_child ();
352	#endif	587	#endif
353		588
354	evio_stop (&sigev);	589	ev_io_stop (&sigev);
355	close (sigpipe [0]);	590	close (sigpipe [0]);
356	close (sigpipe [1]);	591	close (sigpipe [1]);
357	pipe (sigpipe);	592	pipe (sigpipe);
358	siginit ();	593	siginit ();
359	}	594	}
360		595
361	/*****************************************************************************/	596	/*****************************************************************************/
362		597
363	static void	598	static void
364	fd_reify (void)	599	call_pending (void)
365	{	600	{
366	int i;	601	int pri;
367		602
368	for (i = 0; i < fdchangecnt; ++i)	603	for (pri = NUMPRI; pri--; )
369	{	604	while (pendingcnt [pri])
370	int fd = fdchanges [i];
371	ANFD *anfd = anfds + fd;
372	struct ev_io *w;
373
374	int wev = 0;
375
376	for (w = anfd->head; w; w = w->next)
377	wev \|= w->events;
378
379	if (anfd->wev != wev)
380	{	605	{
381	method_modify (fd, anfd->wev, wev);	606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
382	anfd->wev = wev;
383	}
384	}
385		607
386	fdchangecnt = 0;
387	}
388
389	static void
390	call_pending ()
391	{
392	int i;
393
394	for (i = 0; i < pendingcnt; ++i)
395	{
396	ANPENDING *p = pendings + i;
397
398	if (p->w)	608	if (p->w)
399	{	609	{
400	p->w->pending = 0;	610	p->w->pending = 0;
401	p->w->cb (p->w, p->events);	611	p->w->cb (p->w, p->events);
402	}	612	}
403	}	613	}
404
405	pendingcnt = 0;
406	}	614	}
407		615
408	static void	616	static void
409	timers_reify (struct ev_timer **timers, int timercnt, ev_tstamp now)	617	timers_reify (void)
410	{	618	{
411	while (timercnt && timers [0]->at <= now)	619	while (timercnt && timers [0]->at <= now)
412	{	620	{
413	struct ev_timer *w = timers [0];	621	struct ev_timer *w = timers [0];
414		622
415	/* first reschedule or stop timer */	623	/* first reschedule or stop timer */
416	if (w->repeat)	624	if (w->repeat)
417	{	625	{
418	if (w->is_abs)	626	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
419	w->at += floor ((now - w->at) / w->repeat + 1.) * w->repeat;
420	else
421	w->at = now + w->repeat;	627	w->at = now + w->repeat;
422
423	assert (w->at > now);
424
425	downheap (timers, timercnt, 0);	628	downheap ((WT *)timers, timercnt, 0);
426	}	629	}
427	else	630	else
428	{
429	evtimer_stop (w); /* nonrepeating: stop timer */	631	ev_timer_stop (w); /* nonrepeating: stop timer */
430	--timercnt; /* maybe pass by reference instead? */
431	}
432		632
433	event ((W)w, EV_TIMEOUT);	633	event ((W)w, EV_TIMEOUT);
434	}	634	}
435	}	635	}
436		636
437	static void	637	static void
438	time_update ()	638	periodics_reify (void)
		639	{
		640	while (periodiccnt && periodics [0]->at <= ev_now)
		641	{
		642	struct ev_periodic *w = periodics [0];
		643
		644	/* first reschedule or stop timer */
		645	if (w->interval)
		646	{
		647	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;
		648	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
		649	downheap ((WT *)periodics, periodiccnt, 0);
		650	}
		651	else
		652	ev_periodic_stop (w); /* nonrepeating: stop timer */
		653
		654	event ((W)w, EV_PERIODIC);
		655	}
		656	}
		657
		658	static void
		659	periodics_reschedule (ev_tstamp diff)
439	{	660	{
440	int i;	661	int i;
441	ev_now = ev_time ();
442		662
443	if (have_monotonic)	663	/* adjust periodics after time jump */
		664	for (i = 0; i < periodiccnt; ++i)
444	{	665	{
445	ev_tstamp odiff = diff;	666	struct ev_periodic *w = periodics [i];
446		667
447	/* detecting time jumps is much more difficult */	668	if (w->interval)
448	for (i = 2; --i; ) /* loop a few times, before making important decisions */
449	{
450	now = get_clock ();
451	diff = ev_now - now;
452
453	if (fabs (odiff - diff) < MIN_TIMEJUMP)
454	return; /* all is well */
455
456	ev_now = ev_time ();
457	}	669	{
		670	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
458		671
459	/* time jump detected, reschedule atimers */	672	if (fabs (diff) >= 1e-4)
460	for (i = 0; i < atimercnt; ++i)	673	{
		674	ev_periodic_stop (w);
		675	ev_periodic_start (w);
		676
		677	i = 0; /* restart loop, inefficient, but time jumps should be rare */
		678	}
461	{	679	}
462	struct ev_timer *w = atimers [i];	680	}
463	w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat;	681	}
464	}	682
		683	static int
		684	time_update_monotonic (void)
		685	{
		686	now = get_clock ();
		687
		688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))
		689	{
		690	ev_now = now + diff;
		691	return 0;
465	}	692	}
466	else	693	else
467	{	694	{
		695	now_floor = now;
		696	ev_now = ev_time ();
		697	return 1;
		698	}
		699	}
		700
		701	static void
		702	time_update (void)
		703	{
		704	int i;
		705
		706	#if EV_USE_MONOTONIC
		707	if (expect_true (have_monotonic))
		708	{
		709	if (time_update_monotonic ())
		710	{
		711	ev_tstamp odiff = diff;
		712
		713	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		714	{
		715	diff = ev_now - now;
		716
		717	if (fabs (odiff - diff) < MIN_TIMEJUMP)
		718	return; /* all is well */
		719
		720	ev_now = ev_time ();
		721	now = get_clock ();
		722	now_floor = now;
		723	}
		724
		725	periodics_reschedule (diff - odiff);
		726	/* no timer adjustment, as the monotonic clock doesn't jump */
		727	}
		728	}
		729	else
		730	#endif
		731	{
		732	ev_now = ev_time ();
		733
468	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	734	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
469	/* time jump detected, adjust rtimers */	735	{
		736	periodics_reschedule (ev_now - now);
		737
		738	/* adjust timers. this is easy, as the offset is the same for all */
470	for (i = 0; i < rtimercnt; ++i)	739	for (i = 0; i < timercnt; ++i)
471	rtimers [i]->at += ev_now - now;	740	timers [i]->at += diff;
		741	}
472		742
473	now = ev_now;	743	now = ev_now;
474	}	744	}
475	}	745	}
476		746
477	int ev_loop_done;	747	int ev_loop_done;
478		748
479	void ev_loop (int flags)	749	void ev_loop (int flags)
480	{	750	{
481	double block;	751	double block;
482	ev_loop_done = flags & EVLOOP_ONESHOT;	752	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
483
484	if (checkcnt)
485	{
486	queue_events ((W *)checks, checkcnt, EV_CHECK);
487	call_pending ();
488	}
489		753
490	do	754	do
491	{	755	{
		756	/* queue check watchers (and execute them) */
		757	if (expect_false (preparecnt))
		758	{
		759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
		760	call_pending ();
		761	}
		762
492	/* update fd-related kernel structures */	763	/* update fd-related kernel structures */
493	fd_reify ();	764	fd_reify ();
494		765
495	/* calculate blocking time */	766	/* calculate blocking time */
		767
		768	/* we only need this for !monotonic clockor timers, but as we basically
		769	always have timers, we just calculate it always */
		770	#if EV_USE_MONOTONIC
		771	if (expect_true (have_monotonic))
		772	time_update_monotonic ();
		773	else
		774	#endif
		775	{
		776	ev_now = ev_time ();
		777	now = ev_now;
		778	}
		779
496	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	780	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
497	block = 0.;	781	block = 0.;
498	else	782	else
499	{	783	{
500	block = MAX_BLOCKTIME;	784	block = MAX_BLOCKTIME;
501		785
502	if (rtimercnt)	786	if (timercnt)
503	{	787	{
504	ev_tstamp to = rtimers [0]->at - get_clock () + method_fudge;	788	ev_tstamp to = timers [0]->at - now + method_fudge;
505	if (block > to) block = to;	789	if (block > to) block = to;
506	}	790	}
507		791
508	if (atimercnt)	792	if (periodiccnt)
509	{	793	{
510	ev_tstamp to = atimers [0]->at - ev_time () + method_fudge;	794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;
511	if (block > to) block = to;	795	if (block > to) block = to;
512	}	796	}
513		797
514	if (block < 0.) block = 0.;	798	if (block < 0.) block = 0.;
515	}	799	}
…		…
518		802
519	/* update ev_now, do magic */	803	/* update ev_now, do magic */
520	time_update ();	804	time_update ();
521		805
522	/* queue pending timers and reschedule them */	806	/* queue pending timers and reschedule them */
523	/* absolute timers first */	807	timers_reify (); /* relative timers called last */
524	timers_reify (atimers, atimercnt, ev_now);	808	periodics_reify (); /* absolute timers called first */
525	/* relative timers second */
526	timers_reify (rtimers, rtimercnt, now);
527		809
528	/* queue idle watchers unless io or timers are pending */	810	/* queue idle watchers unless io or timers are pending */
529	if (!pendingcnt)	811	if (!pendingcnt)
530	queue_events ((W *)idles, idlecnt, EV_IDLE);	812	queue_events ((W *)idles, idlecnt, EV_IDLE);
531		813
532	/* queue check and possibly idle watchers */	814	/* queue check watchers, to be executed first */
		815	if (checkcnt)
533	queue_events ((W *)checks, checkcnt, EV_CHECK);	816	queue_events ((W *)checks, checkcnt, EV_CHECK);
534		817
535	call_pending ();	818	call_pending ();
536	}	819	}
537	while (!ev_loop_done);	820	while (!ev_loop_done);
		821
		822	if (ev_loop_done != 2)
		823	ev_loop_done = 0;
538	}	824	}
539		825
540	/*****************************************************************************/	826	/*****************************************************************************/
541		827
542	static void	828	static void
…		…
560	head = &(*head)->next;	846	head = &(*head)->next;
561	}	847	}
562	}	848	}
563		849
564	static void	850	static void
		851	ev_clear_pending (W w)
		852	{
		853	if (w->pending)
		854	{
		855	pendings [ABSPRI (w)][w->pending - 1].w = 0;
		856	w->pending = 0;
		857	}
		858	}
		859
		860	static void
565	ev_start (W w, int active)	861	ev_start (W w, int active)
566	{	862	{
567	w->pending = 0;
568	w->active = active;	863	w->active = active;
569	}	864	}
570		865
571	static void	866	static void
572	ev_stop (W w)	867	ev_stop (W w)
573	{	868	{
574	if (w->pending)
575	pendings [w->pending - 1].w = 0;
576
577	w->active = 0;	869	w->active = 0;
578	/* nop */
579	}	870	}
580		871
581	/*****************************************************************************/	872	/*****************************************************************************/
582		873
583	void	874	void
584	evio_start (struct ev_io *w)	875	ev_io_start (struct ev_io *w)
585	{	876	{
		877	int fd = w->fd;
		878
586	if (ev_is_active (w))	879	if (ev_is_active (w))
587	return;	880	return;
588		881
589	int fd = w->fd;	882	assert (("ev_io_start called with negative fd", fd >= 0));
590		883
591	ev_start ((W)w, 1);	884	ev_start ((W)w, 1);
592	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	885	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
593	wlist_add ((WL *)&anfds[fd].head, (WL)w);	886	wlist_add ((WL *)&anfds[fd].head, (WL)w);
594		887
595	++fdchangecnt;	888	fd_change (fd);
596	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
597	fdchanges [fdchangecnt - 1] = fd;
598	}	889	}
599		890
600	void	891	void
601	evio_stop (struct ev_io *w)	892	ev_io_stop (struct ev_io *w)
602	{	893	{
		894	ev_clear_pending ((W)w);
603	if (!ev_is_active (w))	895	if (!ev_is_active (w))
604	return;	896	return;
605		897
606	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	898	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
607	ev_stop ((W)w);	899	ev_stop ((W)w);
608		900
609	++fdchangecnt;	901	fd_change (w->fd);
610	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
611	fdchanges [fdchangecnt - 1] = w->fd;
612	}	902	}
613		903
614	void	904	void
615	evtimer_start (struct ev_timer *w)	905	ev_timer_start (struct ev_timer *w)
616	{	906	{
617	if (ev_is_active (w))	907	if (ev_is_active (w))
618	return;	908	return;
619		909
620	if (w->is_abs)	910	w->at += now;
		911
		912	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
		913
		914	ev_start ((W)w, ++timercnt);
		915	array_needsize (timers, timermax, timercnt, );
		916	timers [timercnt - 1] = w;
		917	upheap ((WT *)timers, timercnt - 1);
		918	}
		919
		920	void
		921	ev_timer_stop (struct ev_timer *w)
		922	{
		923	ev_clear_pending ((W)w);
		924	if (!ev_is_active (w))
		925	return;
		926
		927	if (w->active < timercnt--)
		928	{
		929	timers [w->active - 1] = timers [timercnt];
		930	downheap ((WT *)timers, timercnt, w->active - 1);
621	{	931	}
622	/* this formula differs from the one in timer_reify becuse we do not round up */	932
		933	w->at = w->repeat;
		934
		935	ev_stop ((W)w);
		936	}
		937
		938	void
		939	ev_timer_again (struct ev_timer *w)
		940	{
		941	if (ev_is_active (w))
		942	{
623	if (w->repeat)	943	if (w->repeat)
		944	{
		945	w->at = now + w->repeat;
		946	downheap ((WT *)timers, timercnt, w->active - 1);
		947	}
		948	else
		949	ev_timer_stop (w);
		950	}
		951	else if (w->repeat)
		952	ev_timer_start (w);
		953	}
		954
		955	void
		956	ev_periodic_start (struct ev_periodic *w)
		957	{
		958	if (ev_is_active (w))
		959	return;
		960
		961	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
		962
		963	/* this formula differs from the one in periodic_reify because we do not always round up */
		964	if (w->interval)
624	w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat;	965	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
625		966
626	ev_start ((W)w, ++atimercnt);	967	ev_start ((W)w, ++periodiccnt);
627	array_needsize (atimers, atimermax, atimercnt, );	968	array_needsize (periodics, periodicmax, periodiccnt, );
628	atimers [atimercnt - 1] = w;	969	periodics [periodiccnt - 1] = w;
629	upheap (atimers, atimercnt - 1);	970	upheap ((WT *)periodics, periodiccnt - 1);
630	}
631	else
632	{
633	w->at += now;
634
635	ev_start ((W)w, ++rtimercnt);
636	array_needsize (rtimers, rtimermax, rtimercnt, );
637	rtimers [rtimercnt - 1] = w;
638	upheap (rtimers, rtimercnt - 1);
639	}
640
641	}	971	}
642		972
643	void	973	void
644	evtimer_stop (struct ev_timer *w)	974	ev_periodic_stop (struct ev_periodic *w)
645	{	975	{
		976	ev_clear_pending ((W)w);
646	if (!ev_is_active (w))	977	if (!ev_is_active (w))
647	return;	978	return;
648		979
649	if (w->is_abs)
650	{
651	if (w->active < atimercnt--)	980	if (w->active < periodiccnt--)
652	{
653	atimers [w->active - 1] = atimers [atimercnt];
654	downheap (atimers, atimercnt, w->active - 1);
655	}
656	}	981	{
657	else	982	periodics [w->active - 1] = periodics [periodiccnt];
658	{	983	downheap ((WT *)periodics, periodiccnt, w->active - 1);
659	if (w->active < rtimercnt--)
660	{
661	rtimers [w->active - 1] = rtimers [rtimercnt];
662	downheap (rtimers, rtimercnt, w->active - 1);
663	}
664	}	984	}
665		985
666	ev_stop ((W)w);	986	ev_stop ((W)w);
667	}	987	}
668		988
669	void	989	void
670	evsignal_start (struct ev_signal *w)	990	ev_signal_start (struct ev_signal *w)
671	{	991	{
672	if (ev_is_active (w))	992	if (ev_is_active (w))
673	return;	993	return;
		994
		995	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
674		996
675	ev_start ((W)w, 1);	997	ev_start ((W)w, 1);
676	array_needsize (signals, signalmax, w->signum, signals_init);	998	array_needsize (signals, signalmax, w->signum, signals_init);
677	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	999	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
678		1000
…		…
685	sigaction (w->signum, &sa, 0);	1007	sigaction (w->signum, &sa, 0);
686	}	1008	}
687	}	1009	}
688		1010
689	void	1011	void
690	evsignal_stop (struct ev_signal *w)	1012	ev_signal_stop (struct ev_signal *w)
691	{	1013	{
		1014	ev_clear_pending ((W)w);
692	if (!ev_is_active (w))	1015	if (!ev_is_active (w))
693	return;	1016	return;
694		1017
695	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1018	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
696	ev_stop ((W)w);	1019	ev_stop ((W)w);
697		1020
698	if (!signals [w->signum - 1].head)	1021	if (!signals [w->signum - 1].head)
699	signal (w->signum, SIG_DFL);	1022	signal (w->signum, SIG_DFL);
700	}	1023	}
701		1024
		1025	void
702	void evidle_start (struct ev_idle *w)	1026	ev_idle_start (struct ev_idle *w)
703	{	1027	{
704	if (ev_is_active (w))	1028	if (ev_is_active (w))
705	return;	1029	return;
706		1030
707	ev_start ((W)w, ++idlecnt);	1031	ev_start ((W)w, ++idlecnt);
708	array_needsize (idles, idlemax, idlecnt, );	1032	array_needsize (idles, idlemax, idlecnt, );
709	idles [idlecnt - 1] = w;	1033	idles [idlecnt - 1] = w;
710	}	1034	}
711		1035
		1036	void
712	void evidle_stop (struct ev_idle *w)	1037	ev_idle_stop (struct ev_idle *w)
713	{	1038	{
		1039	ev_clear_pending ((W)w);
		1040	if (ev_is_active (w))
		1041	return;
		1042
714	idles [w->active - 1] = idles [--idlecnt];	1043	idles [w->active - 1] = idles [--idlecnt];
715	ev_stop ((W)w);	1044	ev_stop ((W)w);
716	}	1045	}
717		1046
		1047	void
		1048	ev_prepare_start (struct ev_prepare *w)
		1049	{
		1050	if (ev_is_active (w))
		1051	return;
		1052
		1053	ev_start ((W)w, ++preparecnt);
		1054	array_needsize (prepares, preparemax, preparecnt, );
		1055	prepares [preparecnt - 1] = w;
		1056	}
		1057
		1058	void
		1059	ev_prepare_stop (struct ev_prepare *w)
		1060	{
		1061	ev_clear_pending ((W)w);
		1062	if (ev_is_active (w))
		1063	return;
		1064
		1065	prepares [w->active - 1] = prepares [--preparecnt];
		1066	ev_stop ((W)w);
		1067	}
		1068
		1069	void
718	void evcheck_start (struct ev_check *w)	1070	ev_check_start (struct ev_check *w)
719	{	1071	{
720	if (ev_is_active (w))	1072	if (ev_is_active (w))
721	return;	1073	return;
722		1074
723	ev_start ((W)w, ++checkcnt);	1075	ev_start ((W)w, ++checkcnt);
724	array_needsize (checks, checkmax, checkcnt, );	1076	array_needsize (checks, checkmax, checkcnt, );
725	checks [checkcnt - 1] = w;	1077	checks [checkcnt - 1] = w;
726	}	1078	}
727		1079
		1080	void
728	void evcheck_stop (struct ev_check *w)	1081	ev_check_stop (struct ev_check *w)
729	{	1082	{
		1083	ev_clear_pending ((W)w);
		1084	if (ev_is_active (w))
		1085	return;
		1086
730	checks [w->active - 1] = checks [--checkcnt];	1087	checks [w->active - 1] = checks [--checkcnt];
731	ev_stop ((W)w);	1088	ev_stop ((W)w);
732	}	1089	}
733		1090
		1091	void
		1092	ev_child_start (struct ev_child *w)
		1093	{
		1094	if (ev_is_active (w))
		1095	return;
		1096
		1097	ev_start ((W)w, 1);
		1098	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
		1099	}
		1100
		1101	void
		1102	ev_child_stop (struct ev_child *w)
		1103	{
		1104	ev_clear_pending ((W)w);
		1105	if (ev_is_active (w))
		1106	return;
		1107
		1108	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
		1109	ev_stop ((W)w);
		1110	}
		1111
		1112	/*****************************************************************************/
		1113
		1114	struct ev_once
		1115	{
		1116	struct ev_io io;
		1117	struct ev_timer to;
		1118	void (cb)(int revents, void arg);
		1119	void *arg;
		1120	};
		1121
		1122	static void
		1123	once_cb (struct ev_once *once, int revents)
		1124	{
		1125	void (cb)(int revents, void arg) = once->cb;
		1126	void *arg = once->arg;
		1127
		1128	ev_io_stop (&once->io);
		1129	ev_timer_stop (&once->to);
		1130	free (once);
		1131
		1132	cb (revents, arg);
		1133	}
		1134
		1135	static void
		1136	once_cb_io (struct ev_io *w, int revents)
		1137	{
		1138	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
		1139	}
		1140
		1141	static void
		1142	once_cb_to (struct ev_timer *w, int revents)
		1143	{
		1144	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
		1145	}
		1146
		1147	void
		1148	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
		1149	{
		1150	struct ev_once *once = malloc (sizeof (struct ev_once));
		1151
		1152	if (!once)
		1153	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
		1154	else
		1155	{
		1156	once->cb = cb;
		1157	once->arg = arg;
		1158
		1159	ev_watcher_init (&once->io, once_cb_io);
		1160	if (fd >= 0)
		1161	{
		1162	ev_io_set (&once->io, fd, events);
		1163	ev_io_start (&once->io);
		1164	}
		1165
		1166	ev_watcher_init (&once->to, once_cb_to);
		1167	if (timeout >= 0.)
		1168	{
		1169	ev_timer_set (&once->to, timeout, 0.);
		1170	ev_timer_start (&once->to);
		1171	}
		1172	}
		1173	}
		1174
734	/*****************************************************************************/	1175	/*****************************************************************************/
735		1176
736	#if 0	1177	#if 0
737		1178
		1179	struct ev_io wio;
		1180
738	static void	1181	static void
739	sin_cb (struct ev_io *w, int revents)	1182	sin_cb (struct ev_io *w, int revents)
740	{	1183	{
741	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);	1184	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
742	}	1185	}
743		1186
744	static void	1187	static void
745	ocb (struct ev_timer *w, int revents)	1188	ocb (struct ev_timer *w, int revents)
746	{	1189	{
747	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);	1190	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
748	evtimer_stop (w);	1191	ev_timer_stop (w);
749	evtimer_start (w);	1192	ev_timer_start (w);
750	}	1193	}
751		1194
752	static void	1195	static void
753	scb (struct ev_signal *w, int revents)	1196	scb (struct ev_signal *w, int revents)
754	{	1197	{
755	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1198	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
		1199	ev_io_stop (&wio);
		1200	ev_io_start (&wio);
756	}	1201	}
757		1202
758	static void	1203	static void
759	gcb (struct ev_signal *w, int revents)	1204	gcb (struct ev_signal *w, int revents)
760	{	1205	{
761	fprintf (stderr, "generic %x\n", revents);	1206	fprintf (stderr, "generic %x\n", revents);
		1207
762	}	1208	}
763		1209
764	int main (void)	1210	int main (void)
765	{	1211	{
766	struct ev_io sin;
767
768	ev_init (0);	1212	ev_init (0);
769		1213
770	evw_init (&sin, sin_cb, 55);
771	evio_set (&sin, 0, EV_READ);	1214	ev_io_init (&wio, sin_cb, 0, EV_READ);
772	evio_start (&sin);	1215	ev_io_start (&wio);
773		1216
774	struct ev_timer t[10000];	1217	struct ev_timer t[10000];
775		1218
776	#if 0	1219	#if 0
777	int i;	1220	int i;
778	for (i = 0; i < 10000; ++i)	1221	for (i = 0; i < 10000; ++i)
779	{	1222	{
780	struct ev_timer *w = t + i;	1223	struct ev_timer *w = t + i;
781	evw_init (w, ocb, i);	1224	ev_watcher_init (w, ocb, i);
782	evtimer_set_abs (w, drand48 (), 0.99775533);	1225	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
783	evtimer_start (w);	1226	ev_timer_start (w);
784	if (drand48 () < 0.5)	1227	if (drand48 () < 0.5)
785	evtimer_stop (w);	1228	ev_timer_stop (w);
786	}	1229	}
787	#endif	1230	#endif
788		1231
789	struct ev_timer t1;	1232	struct ev_timer t1;
790	evw_init (&t1, ocb, 0);	1233	ev_timer_init (&t1, ocb, 5, 10);
791	evtimer_set_abs (&t1, 5, 10);
792	evtimer_start (&t1);	1234	ev_timer_start (&t1);
793		1235
794	struct ev_signal sig;	1236	struct ev_signal sig;
795	evw_init (&sig, scb, 65535);
796	evsignal_set (&sig, SIGQUIT);	1237	ev_signal_init (&sig, scb, SIGQUIT);
797	evsignal_start (&sig);	1238	ev_signal_start (&sig);
798		1239
799	struct ev_check cw;	1240	struct ev_check cw;
800	evw_init (&cw, gcb, 0);	1241	ev_check_init (&cw, gcb);
801	evcheck_start (&cw);	1242	ev_check_start (&cw);
802		1243
803	struct ev_idle iw;	1244	struct ev_idle iw;
804	evw_init (&iw, gcb, 0);	1245	ev_idle_init (&iw, gcb);
805	evidle_start (&iw);	1246	ev_idle_start (&iw);
806		1247
807	ev_loop (0);	1248	ev_loop (0);
808		1249
809	return 0;	1250	return 0;
810	}	1251	}

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Comparing libev/ev.c (file contents): Revision 1.10 by root, Wed Oct 31 07:36:03 2007 UTC vs. Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.10 by root, Wed Oct 31 07:36:03 2007 UTC vs.
Revision 1.42 by root, Fri Nov 2 20:05:05 2007 UTC