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

Comparing libev/ev.c (file contents):
Revision 1.17 by root, Wed Oct 31 14:44:15 2007 UTC vs.
Revision 1.49 by root, Sat Nov 3 16:16:58 2007 UTC

…		…
1	/*	1	/*
		2	* libev event processing core, watcher management
		3	*
2	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>	4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
3	* All rights reserved.	5	* All rights reserved.
4	*	6	*
5	* Redistribution and use in source and binary forms, with or without	7	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions are	8	* modification, are permitted provided that the following conditions are
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	30	*/
		31	#if EV_USE_CONFIG_H
		32	# include "config.h"
		33	#endif
29		34
30	#include <math.h>	35	#include <math.h>
31	#include <stdlib.h>	36	#include <stdlib.h>
32	#include <unistd.h>	37	#include <unistd.h>
33	#include <fcntl.h>	38	#include <fcntl.h>
…		…
36		41
37	#include <stdio.h>	42	#include <stdio.h>
38		43
39	#include <assert.h>	44	#include <assert.h>
40	#include <errno.h>	45	#include <errno.h>
		46	#include <sys/types.h>
		47	#ifndef WIN32
		48	# include <sys/wait.h>
		49	#endif
41	#include <sys/time.h>	50	#include <sys/time.h>
42	#include <time.h>	51	#include <time.h>
43		52
44	#define HAVE_EPOLL 1	53	/**/
45		54
46	#ifndef HAVE_MONOTONIC	55	#ifndef EV_USE_MONOTONIC
		56	# define EV_USE_MONOTONIC 1
		57	#endif
		58
		59	#ifndef EV_USE_SELECT
		60	# define EV_USE_SELECT 1
		61	#endif
		62
		63	#ifndef EV_USE_POLL
		64	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
		65	#endif
		66
		67	#ifndef EV_USE_EPOLL
		68	# define EV_USE_EPOLL 0
		69	#endif
		70
		71	#ifndef EV_USE_KQUEUE
		72	# define EV_USE_KQUEUE 0
		73	#endif
		74
		75	#ifndef EV_USE_REALTIME
		76	# define EV_USE_REALTIME 1
		77	#endif
		78
		79	/**/
		80
47	# ifdef CLOCK_MONOTONIC	81	#ifndef CLOCK_MONOTONIC
		82	# undef EV_USE_MONOTONIC
48	# define HAVE_MONOTONIC 1	83	# define EV_USE_MONOTONIC 0
49	# endif	84	#endif
50	#endif
51		85
52	#ifndef HAVE_SELECT
53	# define HAVE_SELECT 1
54	#endif
55
56	#ifndef HAVE_EPOLL
57	# define HAVE_EPOLL 0
58	#endif
59
60	#ifndef HAVE_REALTIME	86	#ifndef CLOCK_REALTIME
61	# define HAVE_REALTIME 1 /* posix requirement, but might be slower */	87	# undef EV_USE_REALTIME
		88	# define EV_USE_REALTIME 0
62	#endif	89	#endif
		90
		91	/**/
63		92
64	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
65	#define MAX_BLOCKTIME 60.	94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
		95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
		96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
66		97
67	#include "ev.h"	98	#include "ev.h"
		99
		100	#if __GNUC__ >= 3
		101	# define expect(expr,value) __builtin_expect ((expr),(value))
		102	# define inline inline
		103	#else
		104	# define expect(expr,value) (expr)
		105	# define inline static
		106	#endif
		107
		108	#define expect_false(expr) expect ((expr) != 0, 0)
		109	#define expect_true(expr) expect ((expr) != 0, 1)
		110
		111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
68		113
69	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
70	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
71	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
72		117
73	static ev_tstamp now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, now, diff; /* monotonic clock */
74	ev_tstamp ev_now;	119	ev_tstamp ev_now;
75	int ev_method;	120	int ev_method;
76		121
77	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
78		123
…		…
83	/*****************************************************************************/	128	/*****************************************************************************/
84		129
85	ev_tstamp	130	ev_tstamp
86	ev_time (void)	131	ev_time (void)
87	{	132	{
88	#if HAVE_REALTIME	133	#if EV_USE_REALTIME
89	struct timespec ts;	134	struct timespec ts;
90	clock_gettime (CLOCK_REALTIME, &ts);	135	clock_gettime (CLOCK_REALTIME, &ts);
91	return ts.tv_sec + ts.tv_nsec * 1e-9;	136	return ts.tv_sec + ts.tv_nsec * 1e-9;
92	#else	137	#else
93	struct timeval tv;	138	struct timeval tv;
…		…
97	}	142	}
98		143
99	static ev_tstamp	144	static ev_tstamp
100	get_clock (void)	145	get_clock (void)
101	{	146	{
102	#if HAVE_MONOTONIC	147	#if EV_USE_MONOTONIC
103	if (have_monotonic)	148	if (expect_true (have_monotonic))
104	{	149	{
105	struct timespec ts;	150	struct timespec ts;
106	clock_gettime (CLOCK_MONOTONIC, &ts);	151	clock_gettime (CLOCK_MONOTONIC, &ts);
107	return ts.tv_sec + ts.tv_nsec * 1e-9;	152	return ts.tv_sec + ts.tv_nsec * 1e-9;
108	}	153	}
109	#endif	154	#endif
110		155
111	return ev_time ();	156	return ev_time ();
112	}	157	}
113		158
		159	#define array_roundsize(base,n) ((n) \| 4 & ~3)
		160
114	#define array_needsize(base,cur,cnt,init) \	161	#define array_needsize(base,cur,cnt,init) \
115	if ((cnt) > cur) \	162	if (expect_false ((cnt) > cur)) \
116	{ \	163	{ \
117	int newcnt = cur ? cur << 1 : 16; \	164	int newcnt = cur; \
		165	do \
		166	{ \
		167	newcnt = array_roundsize (base, newcnt << 1); \
		168	} \
		169	while ((cnt) > newcnt); \
		170	\
118	base = realloc (base, sizeof (base) (newcnt)); \	171	base = realloc (base, sizeof (base) (newcnt)); \
119	init (base + cur, newcnt - cur); \	172	init (base + cur, newcnt - cur); \
120	cur = newcnt; \	173	cur = newcnt; \
121	}	174	}
122		175
123	/*****************************************************************************/	176	/*****************************************************************************/
124		177
125	typedef struct	178	typedef struct
126	{	179	{
127	struct ev_io *head;	180	struct ev_io *head;
128	unsigned char wev, rev; /* want, received event set */	181	unsigned char events;
		182	unsigned char reify;
129	} ANFD;	183	} ANFD;
130		184
131	static ANFD *anfds;	185	static ANFD *anfds;
132	static int anfdmax;	186	static int anfdmax;
133		187
134	static int *fdchanges;
135	static int fdchangemax, fdchangecnt;
136
137	static void	188	static void
138	anfds_init (ANFD *base, int count)	189	anfds_init (ANFD *base, int count)
139	{	190	{
140	while (count--)	191	while (count--)
141	{	192	{
142	base->head = 0;	193	base->head = 0;
143	base->wev = base->rev = EV_NONE;	194	base->events = EV_NONE;
		195	base->reify = 0;
		196
144	++base;	197	++base;
145	}	198	}
146	}	199	}
147		200
148	typedef struct	201	typedef struct
149	{	202	{
150	W w;	203	W w;
151	int events;	204	int events;
152	} ANPENDING;	205	} ANPENDING;
153		206
154	static ANPENDING *pendings;	207	static ANPENDING *pendings [NUMPRI];
155	static int pendingmax, pendingcnt;	208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
156		209
157	static void	210	static void
158	event (W w, int events)	211	event (W w, int events)
159	{	212	{
160	if (w->active)	213	if (w->pending)
161	{	214	{
162	w->pending = ++pendingcnt;
163	array_needsize (pendings, pendingmax, pendingcnt, );
164	pendings [pendingcnt - 1].w = w;
165	pendings [pendingcnt - 1].events = events;	215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
		216	return;
166	}	217	}
		218
		219	w->pending = ++pendingcnt [ABSPRI (w)];
		220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
		221	pendings [ABSPRI (w)][w->pending - 1].w = w;
		222	pendings [ABSPRI (w)][w->pending - 1].events = events;
		223	}
		224
		225	static void
		226	queue_events (W *events, int eventcnt, int type)
		227	{
		228	int i;
		229
		230	for (i = 0; i < eventcnt; ++i)
		231	event (events [i], type);
167	}	232	}
168		233
169	static void	234	static void
170	fd_event (int fd, int events)	235	fd_event (int fd, int events)
171	{	236	{
…		…
179	if (ev)	244	if (ev)
180	event ((W)w, ev);	245	event ((W)w, ev);
181	}	246	}
182	}	247	}
183		248
		249	/*****************************************************************************/
		250
		251	static int *fdchanges;
		252	static int fdchangemax, fdchangecnt;
		253
184	static void	254	static void
185	queue_events (W *events, int eventcnt, int type)	255	fd_reify (void)
186	{	256	{
187	int i;	257	int i;
188		258
189	for (i = 0; i < eventcnt; ++i)	259	for (i = 0; i < fdchangecnt; ++i)
190	event (events [i], type);	260	{
		261	int fd = fdchanges [i];
		262	ANFD *anfd = anfds + fd;
		263	struct ev_io *w;
		264
		265	int events = 0;
		266
		267	for (w = anfd->head; w; w = w->next)
		268	events \|= w->events;
		269
		270	anfd->reify = 0;
		271
		272	if (anfd->events != events)
		273	{
		274	method_modify (fd, anfd->events, events);
		275	anfd->events = events;
		276	}
		277	}
		278
		279	fdchangecnt = 0;
		280	}
		281
		282	static void
		283	fd_change (int fd)
		284	{
		285	if (anfds [fd].reify \|\| fdchangecnt < 0)
		286	return;
		287
		288	anfds [fd].reify = 1;
		289
		290	++fdchangecnt;
		291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
		292	fdchanges [fdchangecnt - 1] = fd;
		293	}
		294
		295	static void
		296	fd_kill (int fd)
		297	{
		298	struct ev_io *w;
		299
		300	printf ("killing fd %d\n", fd);//D
		301	while ((w = anfds [fd].head))
		302	{
		303	ev_io_stop (w);
		304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		305	}
		306	}
		307
		308	/* called on EBADF to verify fds */
		309	static void
		310	fd_ebadf (void)
		311	{
		312	int fd;
		313
		314	for (fd = 0; fd < anfdmax; ++fd)
		315	if (anfds [fd].events)
		316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
		317	fd_kill (fd);
		318	}
		319
		320	/* called on ENOMEM in select/poll to kill some fds and retry */
		321	static void
		322	fd_enomem (void)
		323	{
		324	int fd = anfdmax;
		325
		326	while (fd--)
		327	if (anfds [fd].events)
		328	{
		329	close (fd);
		330	fd_kill (fd);
		331	return;
		332	}
191	}	333	}
192		334
193	/*****************************************************************************/	335	/*****************************************************************************/
194		336
195	static struct ev_timer **timers;	337	static struct ev_timer **timers;
…		…
242	/*****************************************************************************/	384	/*****************************************************************************/
243		385
244	typedef struct	386	typedef struct
245	{	387	{
246	struct ev_signal *head;	388	struct ev_signal *head;
247	sig_atomic_t gotsig;	389	sig_atomic_t volatile gotsig;
248	} ANSIG;	390	} ANSIG;
249		391
250	static ANSIG *signals;	392	static ANSIG *signals;
251	static int signalmax;	393	static int signalmax;
252		394
253	static int sigpipe [2];	395	static int sigpipe [2];
254	static sig_atomic_t gotsig;	396	static sig_atomic_t volatile gotsig;
255	static struct ev_io sigev;	397	static struct ev_io sigev;
256		398
257	static void	399	static void
258	signals_init (ANSIG *base, int count)	400	signals_init (ANSIG *base, int count)
259	{	401	{
260	while (count--)	402	while (count--)
261	{	403	{
262	base->head = 0;	404	base->head = 0;
263	base->gotsig = 0;	405	base->gotsig = 0;
		406
264	++base;	407	++base;
265	}	408	}
266	}	409	}
267		410
268	static void	411	static void
…		…
270	{	413	{
271	signals [signum - 1].gotsig = 1;	414	signals [signum - 1].gotsig = 1;
272		415
273	if (!gotsig)	416	if (!gotsig)
274	{	417	{
		418	int old_errno = errno;
275	gotsig = 1;	419	gotsig = 1;
276	write (sigpipe [1], &gotsig, 1);	420	write (sigpipe [1], &signum, 1);
		421	errno = old_errno;
277	}	422	}
278	}	423	}
279		424
280	static void	425	static void
281	sigcb (struct ev_io *iow, int revents)	426	sigcb (struct ev_io *iow, int revents)
282	{	427	{
283	struct ev_signal *w;	428	struct ev_signal *w;
284	int sig;	429	int signum;
285		430
		431	read (sigpipe [0], &revents, 1);
286	gotsig = 0;	432	gotsig = 0;
287	read (sigpipe [0], &revents, 1);
288		433
289	for (sig = signalmax; sig--; )	434	for (signum = signalmax; signum--; )
290	if (signals [sig].gotsig)	435	if (signals [signum].gotsig)
291	{	436	{
292	signals [sig].gotsig = 0;	437	signals [signum].gotsig = 0;
293		438
294	for (w = signals [sig].head; w; w = w->next)	439	for (w = signals [signum].head; w; w = w->next)
295	event ((W)w, EV_SIGNAL);	440	event ((W)w, EV_SIGNAL);
296	}	441	}
297	}	442	}
298		443
299	static void	444	static void
300	siginit (void)	445	siginit (void)
301	{	446	{
		447	#ifndef WIN32
302	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	448	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
303	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	449	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
304		450
305	/* rather than sort out wether we really need nb, set it */	451	/* rather than sort out wether we really need nb, set it */
306	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	452	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
307	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	453	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		454	#endif
308		455
309	evio_set (&sigev, sigpipe [0], EV_READ);	456	ev_io_set (&sigev, sigpipe [0], EV_READ);
310	evio_start (&sigev);	457	ev_io_start (&sigev);
311	}	458	}
312		459
313	/*****************************************************************************/	460	/*****************************************************************************/
314		461
315	static struct ev_idle **idles;	462	static struct ev_idle **idles;
316	static int idlemax, idlecnt;	463	static int idlemax, idlecnt;
317		464
		465	static struct ev_prepare **prepares;
		466	static int preparemax, preparecnt;
		467
318	static struct ev_check **checks;	468	static struct ev_check **checks;
319	static int checkmax, checkcnt;	469	static int checkmax, checkcnt;
320		470
321	/*****************************************************************************/	471	/*****************************************************************************/
322		472
		473	static struct ev_child *childs [PID_HASHSIZE];
		474	static struct ev_signal childev;
		475
		476	#ifndef WIN32
		477
		478	#ifndef WCONTINUED
		479	# define WCONTINUED 0
		480	#endif
		481
		482	static void
		483	child_reap (struct ev_signal *sw, int chain, int pid, int status)
		484	{
		485	struct ev_child *w;
		486
		487	for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next)
		488	if (w->pid == pid \|\| !w->pid)
		489	{
		490	w->priority = sw->priority; /* need to do it now */
		491	w->rpid = pid;
		492	w->rstatus = status;
		493	printf ("rpid %p %d %d\n", w, pid, w->pid);//D
		494	event ((W)w, EV_CHILD);
		495	}
		496	}
		497
		498	static void
		499	childcb (struct ev_signal *sw, int revents)
		500	{
		501	int pid, status;
		502
		503	printf ("chld %x\n", revents);//D
		504	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
		505	{
		506	/* make sure we are called again until all childs have been reaped */
		507	event ((W)sw, EV_SIGNAL);
		508
		509	child_reap (sw, pid, pid, status);
		510	child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		511	}
		512	}
		513
		514	#endif
		515
		516	/*****************************************************************************/
		517
		518	#if EV_USE_KQUEUE
		519	# include "ev_kqueue.c"
		520	#endif
323	#if HAVE_EPOLL	521	#if EV_USE_EPOLL
324	# include "ev_epoll.c"	522	# include "ev_epoll.c"
325	#endif	523	#endif
		524	#if EV_USE_POLL
		525	# include "ev_poll.c"
		526	#endif
326	#if HAVE_SELECT	527	#if EV_USE_SELECT
327	# include "ev_select.c"	528	# include "ev_select.c"
328	#endif	529	#endif
329		530
330	int ev_init (int flags)	531	int
		532	ev_version_major (void)
331	{	533	{
332	#if HAVE_MONOTONIC	534	return EV_VERSION_MAJOR;
333	{	535	}
334	struct timespec ts;
335	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
336	have_monotonic = 1;
337	}
338	#endif
339		536
340	ev_now = ev_time ();	537	int
341	now = get_clock ();	538	ev_version_minor (void)
342	diff = ev_now - now;	539	{
		540	return EV_VERSION_MINOR;
		541	}
343		542
344	if (pipe (sigpipe))	543	/* return true if we are running with elevated privileges and should ignore env variables */
		544	static int
		545	enable_secure ()
		546	{
		547	#ifdef WIN32
345	return 0;	548	return 0;
346		549	#else
347	ev_method = EVMETHOD_NONE;	550	return getuid () != geteuid ()
348	#if HAVE_EPOLL	551	\|\| getgid () != getegid ();
349	if (ev_method == EVMETHOD_NONE) epoll_init (flags);
350	#endif	552	#endif
351	#if HAVE_SELECT	553	}
352	if (ev_method == EVMETHOD_NONE) select_init (flags);
353	#endif
354		554
		555	int ev_init (int methods)
		556	{
355	if (ev_method)	557	if (!ev_method)
		558	{
		559	#if EV_USE_MONOTONIC
356	{	560	{
		561	struct timespec ts;
		562	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
		563	have_monotonic = 1;
		564	}
		565	#endif
		566
		567	ev_now = ev_time ();
		568	now = get_clock ();
		569	now_floor = now;
		570	diff = ev_now - now;
		571
		572	if (pipe (sigpipe))
		573	return 0;
		574
		575	if (methods == EVMETHOD_AUTO)
		576	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		577	methods = atoi (getenv ("LIBEV_METHODS"));
		578	else
		579	methods = EVMETHOD_ANY;
		580
		581	ev_method = 0;
		582	#if EV_USE_KQUEUE
		583	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);
		584	#endif
		585	#if EV_USE_EPOLL
		586	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
		587	#endif
		588	#if EV_USE_POLL
		589	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
		590	#endif
		591	#if EV_USE_SELECT
		592	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
		593	#endif
		594
		595	if (ev_method)
		596	{
357	evw_init (&sigev, sigcb);	597	ev_watcher_init (&sigev, sigcb);
		598	ev_set_priority (&sigev, EV_MAXPRI);
358	siginit ();	599	siginit ();
		600
		601	#ifndef WIN32
		602	ev_signal_init (&childev, childcb, SIGCHLD);
		603	ev_set_priority (&childev, EV_MAXPRI);
		604	ev_signal_start (&childev);
		605	#endif
		606	}
359	}	607	}
360		608
361	return ev_method;	609	return ev_method;
362	}	610	}
363		611
364	/*****************************************************************************/	612	/*****************************************************************************/
365		613
366	void ev_prefork (void)	614	void
		615	ev_fork_prepare (void)
367	{	616	{
368	/* nop */	617	/* nop */
369	}	618	}
370		619
		620	void
371	void ev_postfork_parent (void)	621	ev_fork_parent (void)
372	{	622	{
373	/* nop */	623	/* nop */
374	}	624	}
375		625
		626	void
376	void ev_postfork_child (void)	627	ev_fork_child (void)
377	{	628	{
378	#if HAVE_EPOLL	629	#if EV_USE_EPOLL
379	if (ev_method == EVMETHOD_EPOLL)	630	if (ev_method == EVMETHOD_EPOLL)
380	epoll_postfork_child ();	631	epoll_postfork_child ();
381	#endif	632	#endif
382		633
383	evio_stop (&sigev);	634	ev_io_stop (&sigev);
384	close (sigpipe [0]);	635	close (sigpipe [0]);
385	close (sigpipe [1]);	636	close (sigpipe [1]);
386	pipe (sigpipe);	637	pipe (sigpipe);
387	siginit ();	638	siginit ();
388	}	639	}
389		640
390	/*****************************************************************************/	641	/*****************************************************************************/
391		642
392	static void	643	static void
393	fd_reify (void)	644	call_pending (void)
394	{	645	{
395	int i;	646	int pri;
396		647
397	for (i = 0; i < fdchangecnt; ++i)	648	for (pri = NUMPRI; pri--; )
398	{	649	while (pendingcnt [pri])
399	int fd = fdchanges [i];
400	ANFD *anfd = anfds + fd;
401	struct ev_io *w;
402
403	int wev = 0;
404
405	for (w = anfd->head; w; w = w->next)
406	wev \|= w->events;
407
408	if (anfd->wev != wev)
409	{	650	{
410	method_modify (fd, anfd->wev, wev);	651	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
411	anfd->wev = wev;
412	}
413	}
414		652
415	fdchangecnt = 0;
416	}
417
418	static void
419	call_pending ()
420	{
421	int i;
422
423	for (i = 0; i < pendingcnt; ++i)
424	{
425	ANPENDING *p = pendings + i;
426
427	if (p->w)	653	if (p->w)
428	{	654	{
429	p->w->pending = 0;	655	p->w->pending = 0;
430	p->w->cb (p->w, p->events);	656	p->w->cb (p->w, p->events);
431	}	657	}
432	}	658	}
433
434	pendingcnt = 0;
435	}	659	}
436		660
437	static void	661	static void
438	timers_reify ()	662	timers_reify (void)
439	{	663	{
440	while (timercnt && timers [0]->at <= now)	664	while (timercnt && timers [0]->at <= now)
441	{	665	{
442	struct ev_timer *w = timers [0];	666	struct ev_timer *w = timers [0];
443
444	event ((W)w, EV_TIMEOUT);
445		667
446	/* first reschedule or stop timer */	668	/* first reschedule or stop timer */
447	if (w->repeat)	669	if (w->repeat)
448	{	670	{
		671	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
449	w->at = now + w->repeat;	672	w->at = now + w->repeat;
450	assert (("timer timeout in the past, negative repeat?", w->at > now));
451	downheap ((WT *)timers, timercnt, 0);	673	downheap ((WT *)timers, timercnt, 0);
452	}	674	}
453	else	675	else
454	evtimer_stop (w); /* nonrepeating: stop timer */	676	ev_timer_stop (w); /* nonrepeating: stop timer */
455	}
456	}
457		677
		678	event ((W)w, EV_TIMEOUT);
		679	}
		680	}
		681
458	static void	682	static void
459	periodics_reify ()	683	periodics_reify (void)
460	{	684	{
461	while (periodiccnt && periodics [0]->at <= ev_now)	685	while (periodiccnt && periodics [0]->at <= ev_now)
462	{	686	{
463	struct ev_periodic *w = periodics [0];	687	struct ev_periodic *w = periodics [0];
464		688
465	/* first reschedule or stop timer */	689	/* first reschedule or stop timer */
466	if (w->interval)	690	if (w->interval)
467	{	691	{
468	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	692	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;
469	assert (("periodic timeout in the past, negative interval?", w->at > ev_now));	693	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
470	downheap ((WT *)periodics, periodiccnt, 0);	694	downheap ((WT *)periodics, periodiccnt, 0);
471	}	695	}
472	else	696	else
473	evperiodic_stop (w); /* nonrepeating: stop timer */	697	ev_periodic_stop (w); /* nonrepeating: stop timer */
474		698
475	event ((W)w, EV_TIMEOUT);	699	event ((W)w, EV_PERIODIC);
476	}	700	}
477	}	701	}
478		702
479	static void	703	static void
480	periodics_reschedule (ev_tstamp diff)	704	periodics_reschedule (ev_tstamp diff)
…		…
490	{	714	{
491	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	715	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
492		716
493	if (fabs (diff) >= 1e-4)	717	if (fabs (diff) >= 1e-4)
494	{	718	{
495	evperiodic_stop (w);	719	ev_periodic_stop (w);
496	evperiodic_start (w);	720	ev_periodic_start (w);
497		721
498	i = 0; /* restart loop, inefficient, but time jumps should be rare */	722	i = 0; /* restart loop, inefficient, but time jumps should be rare */
499	}	723	}
500	}	724	}
501	}	725	}
502	}	726	}
503		727
504	static void	728	static int
		729	time_update_monotonic (void)
		730	{
		731	now = get_clock ();
		732
		733	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))
		734	{
		735	ev_now = now + diff;
		736	return 0;
		737	}
		738	else
		739	{
		740	now_floor = now;
		741	ev_now = ev_time ();
		742	return 1;
		743	}
		744	}
		745
		746	static void
505	time_update ()	747	time_update (void)
506	{	748	{
507	int i;	749	int i;
508		750
509	ev_now = ev_time ();	751	#if EV_USE_MONOTONIC
510
511	if (have_monotonic)	752	if (expect_true (have_monotonic))
512	{	753	{
513	ev_tstamp odiff = diff;	754	if (time_update_monotonic ())
514
515	for (i = 4; --i; ) /* loop a few times, before making important decisions */
516	{	755	{
517	now = get_clock ();	756	ev_tstamp odiff = diff;
		757
		758	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		759	{
518	diff = ev_now - now;	760	diff = ev_now - now;
519		761
520	if (fabs (odiff - diff) < MIN_TIMEJUMP)	762	if (fabs (odiff - diff) < MIN_TIMEJUMP)
521	return; /* all is well */	763	return; /* all is well */
522		764
523	ev_now = ev_time ();	765	ev_now = ev_time ();
		766	now = get_clock ();
		767	now_floor = now;
		768	}
		769
		770	periodics_reschedule (diff - odiff);
		771	/* no timer adjustment, as the monotonic clock doesn't jump */
524	}	772	}
525
526	periodics_reschedule (diff - odiff);
527	/* no timer adjustment, as the monotonic clock doesn't jump */
528	}	773	}
529	else	774	else
		775	#endif
530	{	776	{
		777	ev_now = ev_time ();
		778
531	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	779	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
532	{	780	{
533	periodics_reschedule (ev_now - now);	781	periodics_reschedule (ev_now - now);
534		782
535	/* adjust timers. this is easy, as the offset is the same for all */	783	/* adjust timers. this is easy, as the offset is the same for all */
536	for (i = 0; i < timercnt; ++i)	784	for (i = 0; i < timercnt; ++i)
…		…
544	int ev_loop_done;	792	int ev_loop_done;
545		793
546	void ev_loop (int flags)	794	void ev_loop (int flags)
547	{	795	{
548	double block;	796	double block;
549	ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0;	797	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
550
551	if (checkcnt)
552	{
553	queue_events ((W *)checks, checkcnt, EV_CHECK);
554	call_pending ();
555	}
556		798
557	do	799	do
558	{	800	{
		801	/* queue check watchers (and execute them) */
		802	if (expect_false (preparecnt))
		803	{
		804	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
		805	call_pending ();
		806	}
		807
559	/* update fd-related kernel structures */	808	/* update fd-related kernel structures */
560	fd_reify ();	809	fd_reify ();
561		810
562	/* calculate blocking time */	811	/* calculate blocking time */
563		812
564	/* we only need this for !monotonic clock, but as we always have timers, we just calculate it every time */	813	/* we only need this for !monotonic clockor timers, but as we basically
		814	always have timers, we just calculate it always */
		815	#if EV_USE_MONOTONIC
		816	if (expect_true (have_monotonic))
		817	time_update_monotonic ();
		818	else
		819	#endif
		820	{
565	ev_now = ev_time ();	821	ev_now = ev_time ();
		822	now = ev_now;
		823	}
566		824
567	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	825	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
568	block = 0.;	826	block = 0.;
569	else	827	else
570	{	828	{
571	block = MAX_BLOCKTIME;	829	block = MAX_BLOCKTIME;
572		830
573	if (timercnt)	831	if (timercnt)
574	{	832	{
575	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	833	ev_tstamp to = timers [0]->at - now + method_fudge;
576	if (block > to) block = to;	834	if (block > to) block = to;
577	}	835	}
578		836
579	if (periodiccnt)	837	if (periodiccnt)
580	{	838	{
…		…
589		847
590	/* update ev_now, do magic */	848	/* update ev_now, do magic */
591	time_update ();	849	time_update ();
592		850
593	/* queue pending timers and reschedule them */	851	/* queue pending timers and reschedule them */
		852	timers_reify (); /* relative timers called last */
594	periodics_reify (); /* absolute timers first */	853	periodics_reify (); /* absolute timers called first */
595	timers_reify (); /* relative timers second */
596		854
597	/* queue idle watchers unless io or timers are pending */	855	/* queue idle watchers unless io or timers are pending */
598	if (!pendingcnt)	856	if (!pendingcnt)
599	queue_events ((W *)idles, idlecnt, EV_IDLE);	857	queue_events ((W *)idles, idlecnt, EV_IDLE);
600		858
601	/* queue check and possibly idle watchers */	859	/* queue check watchers, to be executed first */
		860	if (checkcnt)
602	queue_events ((W *)checks, checkcnt, EV_CHECK);	861	queue_events ((W *)checks, checkcnt, EV_CHECK);
603		862
604	call_pending ();	863	call_pending ();
605	}	864	}
606	while (!ev_loop_done);	865	while (!ev_loop_done);
607		866
…		…
632	head = &(*head)->next;	891	head = &(*head)->next;
633	}	892	}
634	}	893	}
635		894
636	static void	895	static void
637	ev_clear (W w)	896	ev_clear_pending (W w)
638	{	897	{
639	if (w->pending)	898	if (w->pending)
640	{	899	{
641	pendings [w->pending - 1].w = 0;	900	pendings [ABSPRI (w)][w->pending - 1].w = 0;
642	w->pending = 0;	901	w->pending = 0;
643	}	902	}
644	}	903	}
645		904
646	static void	905	static void
647	ev_start (W w, int active)	906	ev_start (W w, int active)
648	{	907	{
		908	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		909	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		910
649	w->active = active;	911	w->active = active;
650	}	912	}
651		913
652	static void	914	static void
653	ev_stop (W w)	915	ev_stop (W w)
…		…
656	}	918	}
657		919
658	/*****************************************************************************/	920	/*****************************************************************************/
659		921
660	void	922	void
661	evio_start (struct ev_io *w)	923	ev_io_start (struct ev_io *w)
662	{	924	{
		925	int fd = w->fd;
		926
663	if (ev_is_active (w))	927	if (ev_is_active (w))
664	return;	928	return;
665		929
666	int fd = w->fd;	930	assert (("ev_io_start called with negative fd", fd >= 0));
667		931
668	ev_start ((W)w, 1);	932	ev_start ((W)w, 1);
669	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	933	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
670	wlist_add ((WL *)&anfds[fd].head, (WL)w);	934	wlist_add ((WL *)&anfds[fd].head, (WL)w);
671		935
672	++fdchangecnt;	936	fd_change (fd);
673	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
674	fdchanges [fdchangecnt - 1] = fd;
675	}	937	}
676		938
677	void	939	void
678	evio_stop (struct ev_io *w)	940	ev_io_stop (struct ev_io *w)
679	{	941	{
680	ev_clear ((W)w);	942	ev_clear_pending ((W)w);
681	if (!ev_is_active (w))	943	if (!ev_is_active (w))
682	return;	944	return;
683		945
684	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	946	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
685	ev_stop ((W)w);	947	ev_stop ((W)w);
686		948
687	++fdchangecnt;	949	fd_change (w->fd);
688	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
689	fdchanges [fdchangecnt - 1] = w->fd;
690	}	950	}
691		951
692	void	952	void
693	evtimer_start (struct ev_timer *w)	953	ev_timer_start (struct ev_timer *w)
694	{	954	{
695	if (ev_is_active (w))	955	if (ev_is_active (w))
696	return;	956	return;
697		957
698	w->at += now;	958	w->at += now;
699		959
700	assert (("timer repeat value less than zero not allowed", w->repeat >= 0.));	960	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
701		961
702	ev_start ((W)w, ++timercnt);	962	ev_start ((W)w, ++timercnt);
703	array_needsize (timers, timermax, timercnt, );	963	array_needsize (timers, timermax, timercnt, );
704	timers [timercnt - 1] = w;	964	timers [timercnt - 1] = w;
705	upheap ((WT *)timers, timercnt - 1);	965	upheap ((WT *)timers, timercnt - 1);
706	}	966	}
707		967
708	void	968	void
709	evtimer_stop (struct ev_timer *w)	969	ev_timer_stop (struct ev_timer *w)
710	{	970	{
711	ev_clear ((W)w);	971	ev_clear_pending ((W)w);
712	if (!ev_is_active (w))	972	if (!ev_is_active (w))
713	return;	973	return;
714		974
715	if (w->active < timercnt--)	975	if (w->active < timercnt--)
716	{	976	{
…		…
722		982
723	ev_stop ((W)w);	983	ev_stop ((W)w);
724	}	984	}
725		985
726	void	986	void
727	evtimer_again (struct ev_timer *w)	987	ev_timer_again (struct ev_timer *w)
728	{	988	{
729	if (ev_is_active (w))	989	if (ev_is_active (w))
730	{	990	{
731	if (w->repeat)	991	if (w->repeat)
732	{	992	{
733	w->at = now + w->repeat;	993	w->at = now + w->repeat;
734	downheap ((WT *)timers, timercnt, w->active - 1);	994	downheap ((WT *)timers, timercnt, w->active - 1);
735	}	995	}
736	else	996	else
737	evtimer_stop (w);	997	ev_timer_stop (w);
738	}	998	}
739	else if (w->repeat)	999	else if (w->repeat)
740	evtimer_start (w);	1000	ev_timer_start (w);
741	}	1001	}
742		1002
743	void	1003	void
744	evperiodic_start (struct ev_periodic *w)	1004	ev_periodic_start (struct ev_periodic *w)
745	{	1005	{
746	if (ev_is_active (w))	1006	if (ev_is_active (w))
747	return;	1007	return;
748		1008
749	assert (("periodic interval value less than zero not allowed", w->interval >= 0.));	1009	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
750		1010
751	/* this formula differs from the one in periodic_reify because we do not always round up */	1011	/* this formula differs from the one in periodic_reify because we do not always round up */
752	if (w->interval)	1012	if (w->interval)
753	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1013	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
754		1014
…		…
757	periodics [periodiccnt - 1] = w;	1017	periodics [periodiccnt - 1] = w;
758	upheap ((WT *)periodics, periodiccnt - 1);	1018	upheap ((WT *)periodics, periodiccnt - 1);
759	}	1019	}
760		1020
761	void	1021	void
762	evperiodic_stop (struct ev_periodic *w)	1022	ev_periodic_stop (struct ev_periodic *w)
763	{	1023	{
764	ev_clear ((W)w);	1024	ev_clear_pending ((W)w);
765	if (!ev_is_active (w))	1025	if (!ev_is_active (w))
766	return;	1026	return;
767		1027
768	if (w->active < periodiccnt--)	1028	if (w->active < periodiccnt--)
769	{	1029	{
…		…
772	}	1032	}
773		1033
774	ev_stop ((W)w);	1034	ev_stop ((W)w);
775	}	1035	}
776		1036
		1037	#ifndef SA_RESTART
		1038	# define SA_RESTART 0
		1039	#endif
		1040
777	void	1041	void
778	evsignal_start (struct ev_signal *w)	1042	ev_signal_start (struct ev_signal *w)
779	{	1043	{
780	if (ev_is_active (w))	1044	if (ev_is_active (w))
781	return;	1045	return;
		1046
		1047	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
782		1048
783	ev_start ((W)w, 1);	1049	ev_start ((W)w, 1);
784	array_needsize (signals, signalmax, w->signum, signals_init);	1050	array_needsize (signals, signalmax, w->signum, signals_init);
785	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1051	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
786		1052
787	if (!w->next)	1053	if (!w->next)
788	{	1054	{
789	struct sigaction sa;	1055	struct sigaction sa;
790	sa.sa_handler = sighandler;	1056	sa.sa_handler = sighandler;
791	sigfillset (&sa.sa_mask);	1057	sigfillset (&sa.sa_mask);
792	sa.sa_flags = 0;	1058	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
793	sigaction (w->signum, &sa, 0);	1059	sigaction (w->signum, &sa, 0);
794	}	1060	}
795	}	1061	}
796		1062
797	void	1063	void
798	evsignal_stop (struct ev_signal *w)	1064	ev_signal_stop (struct ev_signal *w)
799	{	1065	{
800	ev_clear ((W)w);	1066	ev_clear_pending ((W)w);
801	if (!ev_is_active (w))	1067	if (!ev_is_active (w))
802	return;	1068	return;
803		1069
804	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1070	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
805	ev_stop ((W)w);	1071	ev_stop ((W)w);
806		1072
807	if (!signals [w->signum - 1].head)	1073	if (!signals [w->signum - 1].head)
808	signal (w->signum, SIG_DFL);	1074	signal (w->signum, SIG_DFL);
809	}	1075	}
810		1076
		1077	void
811	void evidle_start (struct ev_idle *w)	1078	ev_idle_start (struct ev_idle *w)
812	{	1079	{
813	if (ev_is_active (w))	1080	if (ev_is_active (w))
814	return;	1081	return;
815		1082
816	ev_start ((W)w, ++idlecnt);	1083	ev_start ((W)w, ++idlecnt);
817	array_needsize (idles, idlemax, idlecnt, );	1084	array_needsize (idles, idlemax, idlecnt, );
818	idles [idlecnt - 1] = w;	1085	idles [idlecnt - 1] = w;
819	}	1086	}
820		1087
		1088	void
821	void evidle_stop (struct ev_idle *w)	1089	ev_idle_stop (struct ev_idle *w)
822	{	1090	{
823	ev_clear ((W)w);	1091	ev_clear_pending ((W)w);
824	if (ev_is_active (w))	1092	if (ev_is_active (w))
825	return;	1093	return;
826		1094
827	idles [w->active - 1] = idles [--idlecnt];	1095	idles [w->active - 1] = idles [--idlecnt];
828	ev_stop ((W)w);	1096	ev_stop ((W)w);
829	}	1097	}
830		1098
		1099	void
		1100	ev_prepare_start (struct ev_prepare *w)
		1101	{
		1102	if (ev_is_active (w))
		1103	return;
		1104
		1105	ev_start ((W)w, ++preparecnt);
		1106	array_needsize (prepares, preparemax, preparecnt, );
		1107	prepares [preparecnt - 1] = w;
		1108	}
		1109
		1110	void
		1111	ev_prepare_stop (struct ev_prepare *w)
		1112	{
		1113	ev_clear_pending ((W)w);
		1114	if (ev_is_active (w))
		1115	return;
		1116
		1117	prepares [w->active - 1] = prepares [--preparecnt];
		1118	ev_stop ((W)w);
		1119	}
		1120
		1121	void
831	void evcheck_start (struct ev_check *w)	1122	ev_check_start (struct ev_check *w)
832	{	1123	{
833	if (ev_is_active (w))	1124	if (ev_is_active (w))
834	return;	1125	return;
835		1126
836	ev_start ((W)w, ++checkcnt);	1127	ev_start ((W)w, ++checkcnt);
837	array_needsize (checks, checkmax, checkcnt, );	1128	array_needsize (checks, checkmax, checkcnt, );
838	checks [checkcnt - 1] = w;	1129	checks [checkcnt - 1] = w;
839	}	1130	}
840		1131
		1132	void
841	void evcheck_stop (struct ev_check *w)	1133	ev_check_stop (struct ev_check *w)
842	{	1134	{
843	ev_clear ((W)w);	1135	ev_clear_pending ((W)w);
844	if (ev_is_active (w))	1136	if (ev_is_active (w))
845	return;	1137	return;
846		1138
847	checks [w->active - 1] = checks [--checkcnt];	1139	checks [w->active - 1] = checks [--checkcnt];
		1140	ev_stop ((W)w);
		1141	}
		1142
		1143	void
		1144	ev_child_start (struct ev_child *w)
		1145	{
		1146	if (ev_is_active (w))
		1147	return;
		1148
		1149	ev_start ((W)w, 1);
		1150	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
		1151	}
		1152
		1153	void
		1154	ev_child_stop (struct ev_child *w)
		1155	{
		1156	ev_clear_pending ((W)w);
		1157	if (ev_is_active (w))
		1158	return;
		1159
		1160	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
848	ev_stop ((W)w);	1161	ev_stop ((W)w);
849	}	1162	}
850		1163
851	/*****************************************************************************/	1164	/*****************************************************************************/
852		1165
…		…
862	once_cb (struct ev_once *once, int revents)	1175	once_cb (struct ev_once *once, int revents)
863	{	1176	{
864	void (cb)(int revents, void arg) = once->cb;	1177	void (cb)(int revents, void arg) = once->cb;
865	void *arg = once->arg;	1178	void *arg = once->arg;
866		1179
867	evio_stop (&once->io);	1180	ev_io_stop (&once->io);
868	evtimer_stop (&once->to);	1181	ev_timer_stop (&once->to);
869	free (once);	1182	free (once);
870		1183
871	cb (revents, arg);	1184	cb (revents, arg);
872	}	1185	}
873		1186
…		…
887	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1200	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
888	{	1201	{
889	struct ev_once *once = malloc (sizeof (struct ev_once));	1202	struct ev_once *once = malloc (sizeof (struct ev_once));
890		1203
891	if (!once)	1204	if (!once)
892	cb (EV_ERROR, arg);	1205	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
893	else	1206	else
894	{	1207	{
895	once->cb = cb;	1208	once->cb = cb;
896	once->arg = arg;	1209	once->arg = arg;
897		1210
898	evw_init (&once->io, once_cb_io);	1211	ev_watcher_init (&once->io, once_cb_io);
899
900	if (fd >= 0)	1212	if (fd >= 0)
901	{	1213	{
902	evio_set (&once->io, fd, events);	1214	ev_io_set (&once->io, fd, events);
903	evio_start (&once->io);	1215	ev_io_start (&once->io);
904	}	1216	}
905		1217
906	evw_init (&once->to, once_cb_to);	1218	ev_watcher_init (&once->to, once_cb_to);
907
908	if (timeout >= 0.)	1219	if (timeout >= 0.)
909	{	1220	{
910	evtimer_set (&once->to, timeout, 0.);	1221	ev_timer_set (&once->to, timeout, 0.);
911	evtimer_start (&once->to);	1222	ev_timer_start (&once->to);
912	}	1223	}
913	}	1224	}
914	}	1225	}
915		1226
916	/*****************************************************************************/	1227	/*****************************************************************************/
…		…
927		1238
928	static void	1239	static void
929	ocb (struct ev_timer *w, int revents)	1240	ocb (struct ev_timer *w, int revents)
930	{	1241	{
931	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);	1242	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
932	evtimer_stop (w);	1243	ev_timer_stop (w);
933	evtimer_start (w);	1244	ev_timer_start (w);
934	}	1245	}
935		1246
936	static void	1247	static void
937	scb (struct ev_signal *w, int revents)	1248	scb (struct ev_signal *w, int revents)
938	{	1249	{
939	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1250	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
940	evio_stop (&wio);	1251	ev_io_stop (&wio);
941	evio_start (&wio);	1252	ev_io_start (&wio);
942	}	1253	}
943		1254
944	static void	1255	static void
945	gcb (struct ev_signal *w, int revents)	1256	gcb (struct ev_signal *w, int revents)
946	{	1257	{
…		…
950		1261
951	int main (void)	1262	int main (void)
952	{	1263	{
953	ev_init (0);	1264	ev_init (0);
954		1265
955	evio_init (&wio, sin_cb, 0, EV_READ);	1266	ev_io_init (&wio, sin_cb, 0, EV_READ);
956	evio_start (&wio);	1267	ev_io_start (&wio);
957		1268
958	struct ev_timer t[10000];	1269	struct ev_timer t[10000];
959		1270
960	#if 0	1271	#if 0
961	int i;	1272	int i;
962	for (i = 0; i < 10000; ++i)	1273	for (i = 0; i < 10000; ++i)
963	{	1274	{
964	struct ev_timer *w = t + i;	1275	struct ev_timer *w = t + i;
965	evw_init (w, ocb, i);	1276	ev_watcher_init (w, ocb, i);
966	evtimer_init_abs (w, ocb, drand48 (), 0.99775533);	1277	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
967	evtimer_start (w);	1278	ev_timer_start (w);
968	if (drand48 () < 0.5)	1279	if (drand48 () < 0.5)
969	evtimer_stop (w);	1280	ev_timer_stop (w);
970	}	1281	}
971	#endif	1282	#endif
972		1283
973	struct ev_timer t1;	1284	struct ev_timer t1;
974	evtimer_init (&t1, ocb, 5, 10);	1285	ev_timer_init (&t1, ocb, 5, 10);
975	evtimer_start (&t1);	1286	ev_timer_start (&t1);
976		1287
977	struct ev_signal sig;	1288	struct ev_signal sig;
978	evsignal_init (&sig, scb, SIGQUIT);	1289	ev_signal_init (&sig, scb, SIGQUIT);
979	evsignal_start (&sig);	1290	ev_signal_start (&sig);
980		1291
981	struct ev_check cw;	1292	struct ev_check cw;
982	evcheck_init (&cw, gcb);	1293	ev_check_init (&cw, gcb);
983	evcheck_start (&cw);	1294	ev_check_start (&cw);
984		1295
985	struct ev_idle iw;	1296	struct ev_idle iw;
986	evidle_init (&iw, gcb);	1297	ev_idle_init (&iw, gcb);
987	evidle_start (&iw);	1298	ev_idle_start (&iw);
988		1299
989	ev_loop (0);	1300	ev_loop (0);
990		1301
991	return 0;	1302	return 0;
992	}	1303	}

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Comparing libev/ev.c (file contents): Revision 1.17 by root, Wed Oct 31 14:44:15 2007 UTC vs. Revision 1.49 by root, Sat Nov 3 16:16:58 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.17 by root, Wed Oct 31 14:44:15 2007 UTC vs.
Revision 1.49 by root, Sat Nov 3 16:16:58 2007 UTC