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

Comparing libev/ev.c (file contents):
Revision 1.25 by root, Wed Oct 31 21:34:45 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>
…		…
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>
41	#include <sys/types.h>	46	#include <sys/types.h>
		47	#ifndef WIN32
42	#include <sys/wait.h>	48	# include <sys/wait.h>
		49	#endif
43	#include <sys/time.h>	50	#include <sys/time.h>
44	#include <time.h>	51	#include <time.h>
45		52
		53	/**/
		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) */
66	#define PID_HASHSIZE 16 /* size of pid hahs table, must be power of two */	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 */
67		97
68	#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)
69		113
70	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
71	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
72	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
73		117
74	static ev_tstamp now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, now, diff; /* monotonic clock */
75	ev_tstamp ev_now;	119	ev_tstamp ev_now;
76	int ev_method;	120	int ev_method;
77		121
78	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
79		123
…		…
84	/*****************************************************************************/	128	/*****************************************************************************/
85		129
86	ev_tstamp	130	ev_tstamp
87	ev_time (void)	131	ev_time (void)
88	{	132	{
89	#if HAVE_REALTIME	133	#if EV_USE_REALTIME
90	struct timespec ts;	134	struct timespec ts;
91	clock_gettime (CLOCK_REALTIME, &ts);	135	clock_gettime (CLOCK_REALTIME, &ts);
92	return ts.tv_sec + ts.tv_nsec * 1e-9;	136	return ts.tv_sec + ts.tv_nsec * 1e-9;
93	#else	137	#else
94	struct timeval tv;	138	struct timeval tv;
…		…
98	}	142	}
99		143
100	static ev_tstamp	144	static ev_tstamp
101	get_clock (void)	145	get_clock (void)
102	{	146	{
103	#if HAVE_MONOTONIC	147	#if EV_USE_MONOTONIC
104	if (have_monotonic)	148	if (expect_true (have_monotonic))
105	{	149	{
106	struct timespec ts;	150	struct timespec ts;
107	clock_gettime (CLOCK_MONOTONIC, &ts);	151	clock_gettime (CLOCK_MONOTONIC, &ts);
108	return ts.tv_sec + ts.tv_nsec * 1e-9;	152	return ts.tv_sec + ts.tv_nsec * 1e-9;
109	}	153	}
110	#endif	154	#endif
111		155
112	return ev_time ();	156	return ev_time ();
113	}	157	}
114		158
		159	#define array_roundsize(base,n) ((n) \| 4 & ~3)
		160
115	#define array_needsize(base,cur,cnt,init) \	161	#define array_needsize(base,cur,cnt,init) \
116	if ((cnt) > cur) \	162	if (expect_false ((cnt) > cur)) \
117	{ \	163	{ \
118	int newcnt = cur; \	164	int newcnt = cur; \
119	do \	165	do \
120	{ \	166	{ \
121	newcnt = (newcnt << 1) \| 4 & ~3; \	167	newcnt = array_roundsize (base, newcnt << 1); \
122	} \	168	} \
123	while ((cnt) > newcnt); \	169	while ((cnt) > newcnt); \
124	\	170	\
125	base = realloc (base, sizeof (base) (newcnt)); \	171	base = realloc (base, sizeof (base) (newcnt)); \
126	init (base + cur, newcnt - cur); \	172	init (base + cur, newcnt - cur); \
…		…
130	/*****************************************************************************/	176	/*****************************************************************************/
131		177
132	typedef struct	178	typedef struct
133	{	179	{
134	struct ev_io *head;	180	struct ev_io *head;
135	unsigned char wev, rev; /* want, received event set */	181	unsigned char events;
		182	unsigned char reify;
136	} ANFD;	183	} ANFD;
137		184
138	static ANFD *anfds;	185	static ANFD *anfds;
139	static int anfdmax;	186	static int anfdmax;
140		187
141	static int *fdchanges;
142	static int fdchangemax, fdchangecnt;
143
144	static void	188	static void
145	anfds_init (ANFD *base, int count)	189	anfds_init (ANFD *base, int count)
146	{	190	{
147	while (count--)	191	while (count--)
148	{	192	{
149	base->head = 0;	193	base->head = 0;
150	base->wev = base->rev = EV_NONE;	194	base->events = EV_NONE;
		195	base->reify = 0;
		196
151	++base;	197	++base;
152	}	198	}
153	}	199	}
154		200
155	typedef struct	201	typedef struct
156	{	202	{
157	W w;	203	W w;
158	int events;	204	int events;
159	} ANPENDING;	205	} ANPENDING;
160		206
161	static ANPENDING *pendings;	207	static ANPENDING *pendings [NUMPRI];
162	static int pendingmax, pendingcnt;	208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
163		209
164	static void	210	static void
165	event (W w, int events)	211	event (W w, int events)
166	{	212	{
167	if (w->active)	213	if (w->pending)
168	{	214	{
169	w->pending = ++pendingcnt;
170	array_needsize (pendings, pendingmax, pendingcnt, );
171	pendings [pendingcnt - 1].w = w;
172	pendings [pendingcnt - 1].events = events;	215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
		216	return;
173	}	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);
174	}	232	}
175		233
176	static void	234	static void
177	fd_event (int fd, int events)	235	fd_event (int fd, int events)
178	{	236	{
…		…
186	if (ev)	244	if (ev)
187	event ((W)w, ev);	245	event ((W)w, ev);
188	}	246	}
189	}	247	}
190		248
		249	/*****************************************************************************/
		250
		251	static int *fdchanges;
		252	static int fdchangemax, fdchangecnt;
		253
191	static void	254	static void
192	queue_events (W *events, int eventcnt, int type)	255	fd_reify (void)
193	{	256	{
194	int i;	257	int i;
195		258
196	for (i = 0; i < eventcnt; ++i)	259	for (i = 0; i < fdchangecnt; ++i)
197	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	}
198	}	306	}
199		307
200	/* called on EBADF to verify fds */	308	/* called on EBADF to verify fds */
201	static void	309	static void
202	fd_recheck (void)	310	fd_ebadf (void)
203	{	311	{
204	int fd;	312	int fd;
205		313
206	for (fd = 0; fd < anfdmax; ++fd)	314	for (fd = 0; fd < anfdmax; ++fd)
207	if (anfds [fd].wev)	315	if (anfds [fd].events)
208	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
209	while (anfds [fd].head)	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)
210	{	328	{
211	event ((W)anfds [fd].head, EV_ERROR);	329	close (fd);
212	evio_stop (anfds [fd].head);	330	fd_kill (fd);
		331	return;
213	}	332	}
214	}	333	}
215		334
216	/*****************************************************************************/	335	/*****************************************************************************/
217		336
218	static struct ev_timer **timers;	337	static struct ev_timer **timers;
…		…
265	/*****************************************************************************/	384	/*****************************************************************************/
266		385
267	typedef struct	386	typedef struct
268	{	387	{
269	struct ev_signal *head;	388	struct ev_signal *head;
270	sig_atomic_t gotsig;	389	sig_atomic_t volatile gotsig;
271	} ANSIG;	390	} ANSIG;
272		391
273	static ANSIG *signals;	392	static ANSIG *signals;
274	static int signalmax;	393	static int signalmax;
275		394
276	static int sigpipe [2];	395	static int sigpipe [2];
277	static sig_atomic_t gotsig;	396	static sig_atomic_t volatile gotsig;
278	static struct ev_io sigev;	397	static struct ev_io sigev;
279		398
280	static void	399	static void
281	signals_init (ANSIG *base, int count)	400	signals_init (ANSIG *base, int count)
282	{	401	{
283	while (count--)	402	while (count--)
284	{	403	{
285	base->head = 0;	404	base->head = 0;
286	base->gotsig = 0;	405	base->gotsig = 0;
		406
287	++base;	407	++base;
288	}	408	}
289	}	409	}
290		410
291	static void	411	static void
…		…
293	{	413	{
294	signals [signum - 1].gotsig = 1;	414	signals [signum - 1].gotsig = 1;
295		415
296	if (!gotsig)	416	if (!gotsig)
297	{	417	{
		418	int old_errno = errno;
298	gotsig = 1;	419	gotsig = 1;
299	write (sigpipe [1], &gotsig, 1);	420	write (sigpipe [1], &signum, 1);
		421	errno = old_errno;
300	}	422	}
301	}	423	}
302		424
303	static void	425	static void
304	sigcb (struct ev_io *iow, int revents)	426	sigcb (struct ev_io *iow, int revents)
305	{	427	{
306	struct ev_signal *w;	428	struct ev_signal *w;
307	int sig;	429	int signum;
308		430
		431	read (sigpipe [0], &revents, 1);
309	gotsig = 0;	432	gotsig = 0;
310	read (sigpipe [0], &revents, 1);
311		433
312	for (sig = signalmax; sig--; )	434	for (signum = signalmax; signum--; )
313	if (signals [sig].gotsig)	435	if (signals [signum].gotsig)
314	{	436	{
315	signals [sig].gotsig = 0;	437	signals [signum].gotsig = 0;
316		438
317	for (w = signals [sig].head; w; w = w->next)	439	for (w = signals [signum].head; w; w = w->next)
318	event ((W)w, EV_SIGNAL);	440	event ((W)w, EV_SIGNAL);
319	}	441	}
320	}	442	}
321		443
322	static void	444	static void
323	siginit (void)	445	siginit (void)
324	{	446	{
		447	#ifndef WIN32
325	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	448	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
326	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	449	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
327		450
328	/* rather than sort out wether we really need nb, set it */	451	/* rather than sort out wether we really need nb, set it */
329	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	452	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
330	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	453	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		454	#endif
331		455
332	evio_set (&sigev, sigpipe [0], EV_READ);	456	ev_io_set (&sigev, sigpipe [0], EV_READ);
333	evio_start (&sigev);	457	ev_io_start (&sigev);
334	}	458	}
335		459
336	/*****************************************************************************/	460	/*****************************************************************************/
337		461
338	static struct ev_idle **idles;	462	static struct ev_idle **idles;
…		…
347	/*****************************************************************************/	471	/*****************************************************************************/
348		472
349	static struct ev_child *childs [PID_HASHSIZE];	473	static struct ev_child *childs [PID_HASHSIZE];
350	static struct ev_signal childev;	474	static struct ev_signal childev;
351		475
		476	#ifndef WIN32
		477
352	#ifndef WCONTINUED	478	#ifndef WCONTINUED
353	# define WCONTINUED 0	479	# define WCONTINUED 0
354	#endif	480	#endif
355		481
356	static void	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
357	childcb (struct ev_signal *sw, int revents)	499	childcb (struct ev_signal *sw, int revents)
358	{	500	{
359	struct ev_child *w;
360	int pid, status;	501	int pid, status;
361		502
		503	printf ("chld %x\n", revents);//D
362	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	504	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
363	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	505	{
364	if (w->pid == pid \|\| w->pid == -1)	506	/* make sure we are called again until all childs have been reaped */
365	{
366	w->status = status;
367	event ((W)w, EV_CHILD);	507	event ((W)sw, EV_SIGNAL);
368	}	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	}
369	}	512	}
		513
		514	#endif
370		515
371	/*****************************************************************************/	516	/*****************************************************************************/
372		517
		518	#if EV_USE_KQUEUE
		519	# include "ev_kqueue.c"
		520	#endif
373	#if HAVE_EPOLL	521	#if EV_USE_EPOLL
374	# include "ev_epoll.c"	522	# include "ev_epoll.c"
375	#endif	523	#endif
		524	#if EV_USE_POLL
		525	# include "ev_poll.c"
		526	#endif
376	#if HAVE_SELECT	527	#if EV_USE_SELECT
377	# include "ev_select.c"	528	# include "ev_select.c"
378	#endif	529	#endif
379		530
380	int	531	int
381	ev_version_major (void)	532	ev_version_major (void)
…		…
387	ev_version_minor (void)	538	ev_version_minor (void)
388	{	539	{
389	return EV_VERSION_MINOR;	540	return EV_VERSION_MINOR;
390	}	541	}
391		542
		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
		548	return 0;
		549	#else
		550	return getuid () != geteuid ()
		551	\|\| getgid () != getegid ();
		552	#endif
		553	}
		554
392	int ev_init (int flags)	555	int ev_init (int methods)
393	{	556	{
394	if (!ev_method)	557	if (!ev_method)
395	{	558	{
396	#if HAVE_MONOTONIC	559	#if EV_USE_MONOTONIC
397	{	560	{
398	struct timespec ts;	561	struct timespec ts;
399	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	562	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
400	have_monotonic = 1;	563	have_monotonic = 1;
401	}	564	}
402	#endif	565	#endif
403		566
404	ev_now = ev_time ();	567	ev_now = ev_time ();
405	now = get_clock ();	568	now = get_clock ();
		569	now_floor = now;
406	diff = ev_now - now;	570	diff = ev_now - now;
407		571
408	if (pipe (sigpipe))	572	if (pipe (sigpipe))
409	return 0;	573	return 0;
410		574
		575	if (methods == EVMETHOD_AUTO)
		576	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		577	methods = atoi (getenv ("LIBEV_METHODS"));
		578	else
411	ev_method = EVMETHOD_NONE;	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
412	#if HAVE_EPOLL	585	#if EV_USE_EPOLL
413	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	586	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
414	#endif	587	#endif
		588	#if EV_USE_POLL
		589	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
		590	#endif
415	#if HAVE_SELECT	591	#if EV_USE_SELECT
416	if (ev_method == EVMETHOD_NONE) select_init (flags);	592	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
417	#endif	593	#endif
418		594
419	if (ev_method)	595	if (ev_method)
420	{	596	{
421	evw_init (&sigev, sigcb);	597	ev_watcher_init (&sigev, sigcb);
		598	ev_set_priority (&sigev, EV_MAXPRI);
422	siginit ();	599	siginit ();
423		600
		601	#ifndef WIN32
424	evsignal_init (&childev, childcb, SIGCHLD);	602	ev_signal_init (&childev, childcb, SIGCHLD);
		603	ev_set_priority (&childev, EV_MAXPRI);
425	evsignal_start (&childev);	604	ev_signal_start (&childev);
		605	#endif
426	}	606	}
427	}	607	}
428		608
429	return ev_method;	609	return ev_method;
430	}	610	}
431		611
432	/*****************************************************************************/	612	/*****************************************************************************/
433		613
434	void	614	void
435	ev_prefork (void)	615	ev_fork_prepare (void)
436	{	616	{
437	/* nop */	617	/* nop */
438	}	618	}
439		619
440	void	620	void
441	ev_postfork_parent (void)	621	ev_fork_parent (void)
442	{	622	{
443	/* nop */	623	/* nop */
444	}	624	}
445		625
446	void	626	void
447	ev_postfork_child (void)	627	ev_fork_child (void)
448	{	628	{
449	#if HAVE_EPOLL	629	#if EV_USE_EPOLL
450	if (ev_method == EVMETHOD_EPOLL)	630	if (ev_method == EVMETHOD_EPOLL)
451	epoll_postfork_child ();	631	epoll_postfork_child ();
452	#endif	632	#endif
453		633
454	evio_stop (&sigev);	634	ev_io_stop (&sigev);
455	close (sigpipe [0]);	635	close (sigpipe [0]);
456	close (sigpipe [1]);	636	close (sigpipe [1]);
457	pipe (sigpipe);	637	pipe (sigpipe);
458	siginit ();	638	siginit ();
459	}	639	}
460		640
461	/*****************************************************************************/	641	/*****************************************************************************/
462		642
463	static void	643	static void
464	fd_reify (void)
465	{
466	int i;
467
468	for (i = 0; i < fdchangecnt; ++i)
469	{
470	int fd = fdchanges [i];
471	ANFD *anfd = anfds + fd;
472	struct ev_io *w;
473
474	int wev = 0;
475
476	for (w = anfd->head; w; w = w->next)
477	wev \|= w->events;
478
479	if (anfd->wev != wev)
480	{
481	method_modify (fd, anfd->wev, wev);
482	anfd->wev = wev;
483	}
484	}
485
486	fdchangecnt = 0;
487	}
488
489	static void
490	call_pending (void)	644	call_pending (void)
491	{	645	{
		646	int pri;
		647
		648	for (pri = NUMPRI; pri--; )
492	while (pendingcnt)	649	while (pendingcnt [pri])
493	{	650	{
494	ANPENDING *p = pendings + --pendingcnt;	651	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
495		652
496	if (p->w)	653	if (p->w)
497	{	654	{
498	p->w->pending = 0;	655	p->w->pending = 0;
499	p->w->cb (p->w, p->events);	656	p->w->cb (p->w, p->events);
500	}	657	}
501	}	658	}
502	}	659	}
503		660
504	static void	661	static void
505	timers_reify (void)	662	timers_reify (void)
506	{	663	{
507	while (timercnt && timers [0]->at <= now)	664	while (timercnt && timers [0]->at <= now)
508	{	665	{
509	struct ev_timer *w = timers [0];	666	struct ev_timer *w = timers [0];
510
511	event ((W)w, EV_TIMEOUT);
512		667
513	/* first reschedule or stop timer */	668	/* first reschedule or stop timer */
514	if (w->repeat)	669	if (w->repeat)
515	{	670	{
		671	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
516	w->at = now + w->repeat;	672	w->at = now + w->repeat;
517	assert (("timer timeout in the past, negative repeat?", w->at > now));
518	downheap ((WT *)timers, timercnt, 0);	673	downheap ((WT *)timers, timercnt, 0);
519	}	674	}
520	else	675	else
521	evtimer_stop (w); /* nonrepeating: stop timer */	676	ev_timer_stop (w); /* nonrepeating: stop timer */
		677
		678	event ((W)w, EV_TIMEOUT);
522	}	679	}
523	}	680	}
524		681
525	static void	682	static void
526	periodics_reify (void)	683	periodics_reify (void)
…		…
531		688
532	/* first reschedule or stop timer */	689	/* first reschedule or stop timer */
533	if (w->interval)	690	if (w->interval)
534	{	691	{
535	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;
536	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));
537	downheap ((WT *)periodics, periodiccnt, 0);	694	downheap ((WT *)periodics, periodiccnt, 0);
538	}	695	}
539	else	696	else
540	evperiodic_stop (w); /* nonrepeating: stop timer */	697	ev_periodic_stop (w); /* nonrepeating: stop timer */
541		698
542	event ((W)w, EV_TIMEOUT);	699	event ((W)w, EV_PERIODIC);
543	}	700	}
544	}	701	}
545		702
546	static void	703	static void
547	periodics_reschedule (ev_tstamp diff)	704	periodics_reschedule (ev_tstamp diff)
…		…
557	{	714	{
558	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;
559		716
560	if (fabs (diff) >= 1e-4)	717	if (fabs (diff) >= 1e-4)
561	{	718	{
562	evperiodic_stop (w);	719	ev_periodic_stop (w);
563	evperiodic_start (w);	720	ev_periodic_start (w);
564		721
565	i = 0; /* restart loop, inefficient, but time jumps should be rare */	722	i = 0; /* restart loop, inefficient, but time jumps should be rare */
566	}	723	}
567	}	724	}
568	}	725	}
569	}	726	}
570		727
		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
571	static void	746	static void
572	time_update (void)	747	time_update (void)
573	{	748	{
574	int i;	749	int i;
575		750
576	ev_now = ev_time ();	751	#if EV_USE_MONOTONIC
577
578	if (have_monotonic)	752	if (expect_true (have_monotonic))
579	{	753	{
580	ev_tstamp odiff = diff;	754	if (time_update_monotonic ())
581
582	for (i = 4; --i; ) /* loop a few times, before making important decisions */
583	{	755	{
584	now = get_clock ();	756	ev_tstamp odiff = diff;
		757
		758	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		759	{
585	diff = ev_now - now;	760	diff = ev_now - now;
586		761
587	if (fabs (odiff - diff) < MIN_TIMEJUMP)	762	if (fabs (odiff - diff) < MIN_TIMEJUMP)
588	return; /* all is well */	763	return; /* all is well */
589		764
590	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 */
591	}	772	}
592
593	periodics_reschedule (diff - odiff);
594	/* no timer adjustment, as the monotonic clock doesn't jump */
595	}	773	}
596	else	774	else
		775	#endif
597	{	776	{
		777	ev_now = ev_time ();
		778
598	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))
599	{	780	{
600	periodics_reschedule (ev_now - now);	781	periodics_reschedule (ev_now - now);
601		782
602	/* 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 */
603	for (i = 0; i < timercnt; ++i)	784	for (i = 0; i < timercnt; ++i)
…		…
611	int ev_loop_done;	792	int ev_loop_done;
612		793
613	void ev_loop (int flags)	794	void ev_loop (int flags)
614	{	795	{
615	double block;	796	double block;
616	ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0;	797	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
617		798
618	do	799	do
619	{	800	{
620	/* queue check watchers (and execute them) */	801	/* queue check watchers (and execute them) */
621	if (preparecnt)	802	if (expect_false (preparecnt))
622	{	803	{
623	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	804	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
624	call_pending ();	805	call_pending ();
625	}	806	}
626		807
…		…
629		810
630	/* calculate blocking time */	811	/* calculate blocking time */
631		812
632	/* we only need this for !monotonic clockor timers, but as we basically	813	/* we only need this for !monotonic clockor timers, but as we basically
633	always have timers, we just calculate it always */	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	{
634	ev_now = ev_time ();	821	ev_now = ev_time ();
		822	now = ev_now;
		823	}
635		824
636	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	825	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
637	block = 0.;	826	block = 0.;
638	else	827	else
639	{	828	{
640	block = MAX_BLOCKTIME;	829	block = MAX_BLOCKTIME;
641		830
642	if (timercnt)	831	if (timercnt)
643	{	832	{
644	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	833	ev_tstamp to = timers [0]->at - now + method_fudge;
645	if (block > to) block = to;	834	if (block > to) block = to;
646	}	835	}
647		836
648	if (periodiccnt)	837	if (periodiccnt)
649	{	838	{
…		…
702	head = &(*head)->next;	891	head = &(*head)->next;
703	}	892	}
704	}	893	}
705		894
706	static void	895	static void
707	ev_clear (W w)	896	ev_clear_pending (W w)
708	{	897	{
709	if (w->pending)	898	if (w->pending)
710	{	899	{
711	pendings [w->pending - 1].w = 0;	900	pendings [ABSPRI (w)][w->pending - 1].w = 0;
712	w->pending = 0;	901	w->pending = 0;
713	}	902	}
714	}	903	}
715		904
716	static void	905	static void
717	ev_start (W w, int active)	906	ev_start (W w, int active)
718	{	907	{
		908	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		909	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		910
719	w->active = active;	911	w->active = active;
720	}	912	}
721		913
722	static void	914	static void
723	ev_stop (W w)	915	ev_stop (W w)
…		…
726	}	918	}
727		919
728	/*****************************************************************************/	920	/*****************************************************************************/
729		921
730	void	922	void
731	evio_start (struct ev_io *w)	923	ev_io_start (struct ev_io *w)
732	{	924	{
		925	int fd = w->fd;
		926
733	if (ev_is_active (w))	927	if (ev_is_active (w))
734	return;	928	return;
735		929
736	int fd = w->fd;	930	assert (("ev_io_start called with negative fd", fd >= 0));
737		931
738	ev_start ((W)w, 1);	932	ev_start ((W)w, 1);
739	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	933	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
740	wlist_add ((WL *)&anfds[fd].head, (WL)w);	934	wlist_add ((WL *)&anfds[fd].head, (WL)w);
741		935
742	++fdchangecnt;	936	fd_change (fd);
743	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
744	fdchanges [fdchangecnt - 1] = fd;
745
746	if (w->fd == 9)
747	printf ("start %p:%x\n", w, w->events);//D
748	}	937	}
749		938
750	void	939	void
751	evio_stop (struct ev_io *w)	940	ev_io_stop (struct ev_io *w)
752	{	941	{
753	if (w->fd == 9)
754	printf ("stop %p:%x\n", w, w->events);//D
755	ev_clear ((W)w);	942	ev_clear_pending ((W)w);
756	if (!ev_is_active (w))	943	if (!ev_is_active (w))
757	return;	944	return;
758		945
759	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	946	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
760	ev_stop ((W)w);	947	ev_stop ((W)w);
761		948
762	++fdchangecnt;	949	fd_change (w->fd);
763	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
764	fdchanges [fdchangecnt - 1] = w->fd;
765	}	950	}
766		951
767	void	952	void
768	evtimer_start (struct ev_timer *w)	953	ev_timer_start (struct ev_timer *w)
769	{	954	{
770	if (ev_is_active (w))	955	if (ev_is_active (w))
771	return;	956	return;
772		957
773	w->at += now;	958	w->at += now;
774		959
775	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.));
776		961
777	ev_start ((W)w, ++timercnt);	962	ev_start ((W)w, ++timercnt);
778	array_needsize (timers, timermax, timercnt, );	963	array_needsize (timers, timermax, timercnt, );
779	timers [timercnt - 1] = w;	964	timers [timercnt - 1] = w;
780	upheap ((WT *)timers, timercnt - 1);	965	upheap ((WT *)timers, timercnt - 1);
781	}	966	}
782		967
783	void	968	void
784	evtimer_stop (struct ev_timer *w)	969	ev_timer_stop (struct ev_timer *w)
785	{	970	{
786	ev_clear ((W)w);	971	ev_clear_pending ((W)w);
787	if (!ev_is_active (w))	972	if (!ev_is_active (w))
788	return;	973	return;
789		974
790	if (w->active < timercnt--)	975	if (w->active < timercnt--)
791	{	976	{
…		…
797		982
798	ev_stop ((W)w);	983	ev_stop ((W)w);
799	}	984	}
800		985
801	void	986	void
802	evtimer_again (struct ev_timer *w)	987	ev_timer_again (struct ev_timer *w)
803	{	988	{
804	if (ev_is_active (w))	989	if (ev_is_active (w))
805	{	990	{
806	if (w->repeat)	991	if (w->repeat)
807	{	992	{
808	w->at = now + w->repeat;	993	w->at = now + w->repeat;
809	downheap ((WT *)timers, timercnt, w->active - 1);	994	downheap ((WT *)timers, timercnt, w->active - 1);
810	}	995	}
811	else	996	else
812	evtimer_stop (w);	997	ev_timer_stop (w);
813	}	998	}
814	else if (w->repeat)	999	else if (w->repeat)
815	evtimer_start (w);	1000	ev_timer_start (w);
816	}	1001	}
817		1002
818	void	1003	void
819	evperiodic_start (struct ev_periodic *w)	1004	ev_periodic_start (struct ev_periodic *w)
820	{	1005	{
821	if (ev_is_active (w))	1006	if (ev_is_active (w))
822	return;	1007	return;
823		1008
824	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.));
825		1010
826	/* 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 */
827	if (w->interval)	1012	if (w->interval)
828	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1013	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
829		1014
…		…
832	periodics [periodiccnt - 1] = w;	1017	periodics [periodiccnt - 1] = w;
833	upheap ((WT *)periodics, periodiccnt - 1);	1018	upheap ((WT *)periodics, periodiccnt - 1);
834	}	1019	}
835		1020
836	void	1021	void
837	evperiodic_stop (struct ev_periodic *w)	1022	ev_periodic_stop (struct ev_periodic *w)
838	{	1023	{
839	ev_clear ((W)w);	1024	ev_clear_pending ((W)w);
840	if (!ev_is_active (w))	1025	if (!ev_is_active (w))
841	return;	1026	return;
842		1027
843	if (w->active < periodiccnt--)	1028	if (w->active < periodiccnt--)
844	{	1029	{
…		…
847	}	1032	}
848		1033
849	ev_stop ((W)w);	1034	ev_stop ((W)w);
850	}	1035	}
851		1036
		1037	#ifndef SA_RESTART
		1038	# define SA_RESTART 0
		1039	#endif
		1040
852	void	1041	void
853	evsignal_start (struct ev_signal *w)	1042	ev_signal_start (struct ev_signal *w)
854	{	1043	{
855	if (ev_is_active (w))	1044	if (ev_is_active (w))
856	return;	1045	return;
		1046
		1047	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
857		1048
858	ev_start ((W)w, 1);	1049	ev_start ((W)w, 1);
859	array_needsize (signals, signalmax, w->signum, signals_init);	1050	array_needsize (signals, signalmax, w->signum, signals_init);
860	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1051	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
861		1052
862	if (!w->next)	1053	if (!w->next)
863	{	1054	{
864	struct sigaction sa;	1055	struct sigaction sa;
865	sa.sa_handler = sighandler;	1056	sa.sa_handler = sighandler;
866	sigfillset (&sa.sa_mask);	1057	sigfillset (&sa.sa_mask);
867	sa.sa_flags = 0;	1058	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
868	sigaction (w->signum, &sa, 0);	1059	sigaction (w->signum, &sa, 0);
869	}	1060	}
870	}	1061	}
871		1062
872	void	1063	void
873	evsignal_stop (struct ev_signal *w)	1064	ev_signal_stop (struct ev_signal *w)
874	{	1065	{
875	ev_clear ((W)w);	1066	ev_clear_pending ((W)w);
876	if (!ev_is_active (w))	1067	if (!ev_is_active (w))
877	return;	1068	return;
878		1069
879	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1070	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
880	ev_stop ((W)w);	1071	ev_stop ((W)w);
881		1072
882	if (!signals [w->signum - 1].head)	1073	if (!signals [w->signum - 1].head)
883	signal (w->signum, SIG_DFL);	1074	signal (w->signum, SIG_DFL);
884	}	1075	}
885		1076
		1077	void
886	void evidle_start (struct ev_idle *w)	1078	ev_idle_start (struct ev_idle *w)
887	{	1079	{
888	if (ev_is_active (w))	1080	if (ev_is_active (w))
889	return;	1081	return;
890		1082
891	ev_start ((W)w, ++idlecnt);	1083	ev_start ((W)w, ++idlecnt);
892	array_needsize (idles, idlemax, idlecnt, );	1084	array_needsize (idles, idlemax, idlecnt, );
893	idles [idlecnt - 1] = w;	1085	idles [idlecnt - 1] = w;
894	}	1086	}
895		1087
		1088	void
896	void evidle_stop (struct ev_idle *w)	1089	ev_idle_stop (struct ev_idle *w)
897	{	1090	{
898	ev_clear ((W)w);	1091	ev_clear_pending ((W)w);
899	if (ev_is_active (w))	1092	if (ev_is_active (w))
900	return;	1093	return;
901		1094
902	idles [w->active - 1] = idles [--idlecnt];	1095	idles [w->active - 1] = idles [--idlecnt];
903	ev_stop ((W)w);	1096	ev_stop ((W)w);
904	}	1097	}
905		1098
		1099	void
906	void evprepare_start (struct ev_prepare *w)	1100	ev_prepare_start (struct ev_prepare *w)
907	{	1101	{
908	if (ev_is_active (w))	1102	if (ev_is_active (w))
909	return;	1103	return;
910		1104
911	ev_start ((W)w, ++preparecnt);	1105	ev_start ((W)w, ++preparecnt);
912	array_needsize (prepares, preparemax, preparecnt, );	1106	array_needsize (prepares, preparemax, preparecnt, );
913	prepares [preparecnt - 1] = w;	1107	prepares [preparecnt - 1] = w;
914	}	1108	}
915		1109
		1110	void
916	void evprepare_stop (struct ev_prepare *w)	1111	ev_prepare_stop (struct ev_prepare *w)
917	{	1112	{
918	ev_clear ((W)w);	1113	ev_clear_pending ((W)w);
919	if (ev_is_active (w))	1114	if (ev_is_active (w))
920	return;	1115	return;
921		1116
922	prepares [w->active - 1] = prepares [--preparecnt];	1117	prepares [w->active - 1] = prepares [--preparecnt];
923	ev_stop ((W)w);	1118	ev_stop ((W)w);
924	}	1119	}
925		1120
		1121	void
926	void evcheck_start (struct ev_check *w)	1122	ev_check_start (struct ev_check *w)
927	{	1123	{
928	if (ev_is_active (w))	1124	if (ev_is_active (w))
929	return;	1125	return;
930		1126
931	ev_start ((W)w, ++checkcnt);	1127	ev_start ((W)w, ++checkcnt);
932	array_needsize (checks, checkmax, checkcnt, );	1128	array_needsize (checks, checkmax, checkcnt, );
933	checks [checkcnt - 1] = w;	1129	checks [checkcnt - 1] = w;
934	}	1130	}
935		1131
		1132	void
936	void evcheck_stop (struct ev_check *w)	1133	ev_check_stop (struct ev_check *w)
937	{	1134	{
938	ev_clear ((W)w);	1135	ev_clear_pending ((W)w);
939	if (ev_is_active (w))	1136	if (ev_is_active (w))
940	return;	1137	return;
941		1138
942	checks [w->active - 1] = checks [--checkcnt];	1139	checks [w->active - 1] = checks [--checkcnt];
943	ev_stop ((W)w);	1140	ev_stop ((W)w);
944	}	1141	}
945		1142
		1143	void
946	void evchild_start (struct ev_child *w)	1144	ev_child_start (struct ev_child *w)
947	{	1145	{
948	if (ev_is_active (w))	1146	if (ev_is_active (w))
949	return;	1147	return;
950		1148
951	ev_start ((W)w, 1);	1149	ev_start ((W)w, 1);
952	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1150	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
953	}	1151	}
954		1152
		1153	void
955	void evchild_stop (struct ev_child *w)	1154	ev_child_stop (struct ev_child *w)
956	{	1155	{
957	ev_clear ((W)w);	1156	ev_clear_pending ((W)w);
958	if (ev_is_active (w))	1157	if (ev_is_active (w))
959	return;	1158	return;
960		1159
961	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1160	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
962	ev_stop ((W)w);	1161	ev_stop ((W)w);
…		…
976	once_cb (struct ev_once *once, int revents)	1175	once_cb (struct ev_once *once, int revents)
977	{	1176	{
978	void (cb)(int revents, void arg) = once->cb;	1177	void (cb)(int revents, void arg) = once->cb;
979	void *arg = once->arg;	1178	void *arg = once->arg;
980		1179
981	evio_stop (&once->io);	1180	ev_io_stop (&once->io);
982	evtimer_stop (&once->to);	1181	ev_timer_stop (&once->to);
983	free (once);	1182	free (once);
984		1183
985	cb (revents, arg);	1184	cb (revents, arg);
986	}	1185	}
987		1186
…		…
1001	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)
1002	{	1201	{
1003	struct ev_once *once = malloc (sizeof (struct ev_once));	1202	struct ev_once *once = malloc (sizeof (struct ev_once));
1004		1203
1005	if (!once)	1204	if (!once)
1006	cb (EV_ERROR, arg);	1205	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1007	else	1206	else
1008	{	1207	{
1009	once->cb = cb;	1208	once->cb = cb;
1010	once->arg = arg;	1209	once->arg = arg;
1011		1210
1012	evw_init (&once->io, once_cb_io);	1211	ev_watcher_init (&once->io, once_cb_io);
1013
1014	if (fd >= 0)	1212	if (fd >= 0)
1015	{	1213	{
1016	evio_set (&once->io, fd, events);	1214	ev_io_set (&once->io, fd, events);
1017	evio_start (&once->io);	1215	ev_io_start (&once->io);
1018	}	1216	}
1019		1217
1020	evw_init (&once->to, once_cb_to);	1218	ev_watcher_init (&once->to, once_cb_to);
1021
1022	if (timeout >= 0.)	1219	if (timeout >= 0.)
1023	{	1220	{
1024	evtimer_set (&once->to, timeout, 0.);	1221	ev_timer_set (&once->to, timeout, 0.);
1025	evtimer_start (&once->to);	1222	ev_timer_start (&once->to);
1026	}	1223	}
1027	}	1224	}
1028	}	1225	}
1029		1226
1030	/*****************************************************************************/	1227	/*****************************************************************************/
…		…
1041		1238
1042	static void	1239	static void
1043	ocb (struct ev_timer *w, int revents)	1240	ocb (struct ev_timer *w, int revents)
1044	{	1241	{
1045	//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);
1046	evtimer_stop (w);	1243	ev_timer_stop (w);
1047	evtimer_start (w);	1244	ev_timer_start (w);
1048	}	1245	}
1049		1246
1050	static void	1247	static void
1051	scb (struct ev_signal *w, int revents)	1248	scb (struct ev_signal *w, int revents)
1052	{	1249	{
1053	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1250	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1054	evio_stop (&wio);	1251	ev_io_stop (&wio);
1055	evio_start (&wio);	1252	ev_io_start (&wio);
1056	}	1253	}
1057		1254
1058	static void	1255	static void
1059	gcb (struct ev_signal *w, int revents)	1256	gcb (struct ev_signal *w, int revents)
1060	{	1257	{
…		…
1064		1261
1065	int main (void)	1262	int main (void)
1066	{	1263	{
1067	ev_init (0);	1264	ev_init (0);
1068		1265
1069	evio_init (&wio, sin_cb, 0, EV_READ);	1266	ev_io_init (&wio, sin_cb, 0, EV_READ);
1070	evio_start (&wio);	1267	ev_io_start (&wio);
1071		1268
1072	struct ev_timer t[10000];	1269	struct ev_timer t[10000];
1073		1270
1074	#if 0	1271	#if 0
1075	int i;	1272	int i;
1076	for (i = 0; i < 10000; ++i)	1273	for (i = 0; i < 10000; ++i)
1077	{	1274	{
1078	struct ev_timer *w = t + i;	1275	struct ev_timer *w = t + i;
1079	evw_init (w, ocb, i);	1276	ev_watcher_init (w, ocb, i);
1080	evtimer_init_abs (w, ocb, drand48 (), 0.99775533);	1277	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1081	evtimer_start (w);	1278	ev_timer_start (w);
1082	if (drand48 () < 0.5)	1279	if (drand48 () < 0.5)
1083	evtimer_stop (w);	1280	ev_timer_stop (w);
1084	}	1281	}
1085	#endif	1282	#endif
1086		1283
1087	struct ev_timer t1;	1284	struct ev_timer t1;
1088	evtimer_init (&t1, ocb, 5, 10);	1285	ev_timer_init (&t1, ocb, 5, 10);
1089	evtimer_start (&t1);	1286	ev_timer_start (&t1);
1090		1287
1091	struct ev_signal sig;	1288	struct ev_signal sig;
1092	evsignal_init (&sig, scb, SIGQUIT);	1289	ev_signal_init (&sig, scb, SIGQUIT);
1093	evsignal_start (&sig);	1290	ev_signal_start (&sig);
1094		1291
1095	struct ev_check cw;	1292	struct ev_check cw;
1096	evcheck_init (&cw, gcb);	1293	ev_check_init (&cw, gcb);
1097	evcheck_start (&cw);	1294	ev_check_start (&cw);
1098		1295
1099	struct ev_idle iw;	1296	struct ev_idle iw;
1100	evidle_init (&iw, gcb);	1297	ev_idle_init (&iw, gcb);
1101	evidle_start (&iw);	1298	ev_idle_start (&iw);
1102		1299
1103	ev_loop (0);	1300	ev_loop (0);
1104		1301
1105	return 0;	1302	return 0;
1106	}	1303	}

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Comparing libev/ev.c (file contents): Revision 1.25 by root, Wed Oct 31 21:34:45 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 1.25 by root, Wed Oct 31 21:34:45 2007 UTC vs.
Revision 1.49 by root, Sat Nov 3 16:16:58 2007 UTC