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

Comparing libev/ev.c (file contents):
Revision 1.24 by root, Wed Oct 31 20:46:44 2007 UTC vs.
Revision 1.47 by root, Sat Nov 3 11:44:44 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
…		…
294	signals [signum - 1].gotsig = 1;	414	signals [signum - 1].gotsig = 1;
295		415
296	if (!gotsig)	416	if (!gotsig)
297	{	417	{
298	gotsig = 1;	418	gotsig = 1;
299	write (sigpipe [1], &gotsig, 1);	419	write (sigpipe [1], &signum, 1);
300	}	420	}
301	}	421	}
302		422
303	static void	423	static void
304	sigcb (struct ev_io *iow, int revents)	424	sigcb (struct ev_io *iow, int revents)
305	{	425	{
306	struct ev_signal *w;	426	struct ev_signal *w;
307	int sig;	427	int signum;
308		428
		429	read (sigpipe [0], &revents, 1);
309	gotsig = 0;	430	gotsig = 0;
310	read (sigpipe [0], &revents, 1);
311		431
312	for (sig = signalmax; sig--; )	432	for (signum = signalmax; signum--; )
313	if (signals [sig].gotsig)	433	if (signals [signum].gotsig)
314	{	434	{
315	signals [sig].gotsig = 0;	435	signals [signum].gotsig = 0;
316		436
317	for (w = signals [sig].head; w; w = w->next)	437	for (w = signals [signum].head; w; w = w->next)
318	event ((W)w, EV_SIGNAL);	438	event ((W)w, EV_SIGNAL);
319	}	439	}
320	}	440	}
321		441
322	static void	442	static void
323	siginit (void)	443	siginit (void)
324	{	444	{
		445	#ifndef WIN32
325	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
326	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
327		448
328	/* rather than sort out wether we really need nb, set it */	449	/* rather than sort out wether we really need nb, set it */
329	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	450	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
330	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		452	#endif
331		453
332	evio_set (&sigev, sigpipe [0], EV_READ);	454	ev_io_set (&sigev, sigpipe [0], EV_READ);
333	evio_start (&sigev);	455	ev_io_start (&sigev);
334	}	456	}
335		457
336	/*****************************************************************************/	458	/*****************************************************************************/
337		459
338	static struct ev_idle **idles;	460	static struct ev_idle **idles;
…		…
347	/*****************************************************************************/	469	/*****************************************************************************/
348		470
349	static struct ev_child *childs [PID_HASHSIZE];	471	static struct ev_child *childs [PID_HASHSIZE];
350	static struct ev_signal childev;	472	static struct ev_signal childev;
351		473
		474	#ifndef WIN32
		475
352	#ifndef WCONTINUED	476	#ifndef WCONTINUED
353	# define WCONTINUED 0	477	# define WCONTINUED 0
354	#endif	478	#endif
355		479
356	static void	480	static void
		481	child_reap (struct ev_signal *sw, int chain, int pid, int status)
		482	{
		483	struct ev_child *w;
		484
		485	for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next)
		486	if (w->pid == pid \|\| !w->pid)
		487	{
		488	w->priority = sw->priority; /* need to do it now */
		489	w->rpid = pid;
		490	w->rstatus = status;
		491	printf ("rpid %p %d %d\n", w, pid, w->pid);//D
		492	event ((W)w, EV_CHILD);
		493	}
		494	}
		495
		496	static void
357	childcb (struct ev_signal *sw, int revents)	497	childcb (struct ev_signal *sw, int revents)
358	{	498	{
359	struct ev_child *w;
360	int pid, status;	499	int pid, status;
361		500
		501	printf ("chld %x\n", revents);//D
362	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	502	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
363	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	503	{
364	if (w->pid == pid \|\| w->pid == -1)	504	/* make sure we are called again until all childs have been reaped */
365	{
366	w->status = status;
367	event ((W)w, EV_CHILD);	505	event ((W)sw, EV_SIGNAL);
368	}	506
		507	child_reap (sw, pid, pid, status);
		508	child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		509	}
369	}	510	}
		511
		512	#endif
370		513
371	/*****************************************************************************/	514	/*****************************************************************************/
372		515
		516	#if EV_USE_KQUEUE
		517	# include "ev_kqueue.c"
		518	#endif
373	#if HAVE_EPOLL	519	#if EV_USE_EPOLL
374	# include "ev_epoll.c"	520	# include "ev_epoll.c"
375	#endif	521	#endif
		522	#if EV_USE_POLL
		523	# include "ev_poll.c"
		524	#endif
376	#if HAVE_SELECT	525	#if EV_USE_SELECT
377	# include "ev_select.c"	526	# include "ev_select.c"
378	#endif	527	#endif
379		528
380	int	529	int
381	ev_version_major (void)	530	ev_version_major (void)
…		…
387	ev_version_minor (void)	536	ev_version_minor (void)
388	{	537	{
389	return EV_VERSION_MINOR;	538	return EV_VERSION_MINOR;
390	}	539	}
391		540
		541	/* return true if we are running with elevated privileges and ignore env variables */
		542	static int
		543	enable_secure ()
		544	{
		545	return getuid () != geteuid ()
		546	\|\| getgid () != getegid ();
		547	}
		548
392	int ev_init (int flags)	549	int ev_init (int methods)
393	{	550	{
394	if (!ev_method)	551	if (!ev_method)
395	{	552	{
396	#if HAVE_MONOTONIC	553	#if EV_USE_MONOTONIC
397	{	554	{
398	struct timespec ts;	555	struct timespec ts;
399	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	556	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
400	have_monotonic = 1;	557	have_monotonic = 1;
401	}	558	}
402	#endif	559	#endif
403		560
404	ev_now = ev_time ();	561	ev_now = ev_time ();
405	now = get_clock ();	562	now = get_clock ();
		563	now_floor = now;
406	diff = ev_now - now;	564	diff = ev_now - now;
407		565
408	if (pipe (sigpipe))	566	if (pipe (sigpipe))
409	return 0;	567	return 0;
410		568
		569	if (methods == EVMETHOD_AUTO)
		570	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		571	methods = atoi (getenv ("LIBEV_METHODS"));
		572	else
411	ev_method = EVMETHOD_NONE;	573	methods = EVMETHOD_ANY;
		574
		575	ev_method = 0;
		576	#if EV_USE_KQUEUE
		577	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);
		578	#endif
412	#if HAVE_EPOLL	579	#if EV_USE_EPOLL
413	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	580	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
414	#endif	581	#endif
		582	#if EV_USE_POLL
		583	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
		584	#endif
415	#if HAVE_SELECT	585	#if EV_USE_SELECT
416	if (ev_method == EVMETHOD_NONE) select_init (flags);	586	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
417	#endif	587	#endif
418		588
419	if (ev_method)	589	if (ev_method)
420	{	590	{
421	evw_init (&sigev, sigcb);	591	ev_watcher_init (&sigev, sigcb);
		592	ev_set_priority (&sigev, EV_MAXPRI);
422	siginit ();	593	siginit ();
423		594
		595	#ifndef WIN32
424	evsignal_init (&childev, childcb, SIGCHLD);	596	ev_signal_init (&childev, childcb, SIGCHLD);
		597	ev_set_priority (&childev, EV_MAXPRI);
425	evsignal_start (&childev);	598	ev_signal_start (&childev);
		599	#endif
426	}	600	}
427	}	601	}
428		602
429	return ev_method;	603	return ev_method;
430	}	604	}
431		605
432	/*****************************************************************************/	606	/*****************************************************************************/
433		607
434	void	608	void
435	ev_prefork (void)	609	ev_fork_prepare (void)
436	{	610	{
437	/* nop */	611	/* nop */
438	}	612	}
439		613
440	void	614	void
441	ev_postfork_parent (void)	615	ev_fork_parent (void)
442	{	616	{
443	/* nop */	617	/* nop */
444	}	618	}
445		619
446	void	620	void
447	ev_postfork_child (void)	621	ev_fork_child (void)
448	{	622	{
449	#if HAVE_EPOLL	623	#if EV_USE_EPOLL
450	if (ev_method == EVMETHOD_EPOLL)	624	if (ev_method == EVMETHOD_EPOLL)
451	epoll_postfork_child ();	625	epoll_postfork_child ();
452	#endif	626	#endif
453		627
454	evio_stop (&sigev);	628	ev_io_stop (&sigev);
455	close (sigpipe [0]);	629	close (sigpipe [0]);
456	close (sigpipe [1]);	630	close (sigpipe [1]);
457	pipe (sigpipe);	631	pipe (sigpipe);
458	siginit ();	632	siginit ();
459	}	633	}
460		634
461	/*****************************************************************************/	635	/*****************************************************************************/
462		636
463	static void	637	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)	638	call_pending (void)
491	{	639	{
		640	int pri;
		641
		642	for (pri = NUMPRI; pri--; )
492	while (pendingcnt)	643	while (pendingcnt [pri])
493	{	644	{
494	ANPENDING *p = pendings + --pendingcnt;	645	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
495		646
496	if (p->w)	647	if (p->w)
497	{	648	{
498	p->w->pending = 0;	649	p->w->pending = 0;
499	p->w->cb (p->w, p->events);	650	p->w->cb (p->w, p->events);
500	}	651	}
501	}	652	}
502	}	653	}
503		654
504	static void	655	static void
505	timers_reify (void)	656	timers_reify (void)
506	{	657	{
507	while (timercnt && timers [0]->at <= now)	658	while (timercnt && timers [0]->at <= now)
508	{	659	{
509	struct ev_timer *w = timers [0];	660	struct ev_timer *w = timers [0];
510
511	event ((W)w, EV_TIMEOUT);
512		661
513	/* first reschedule or stop timer */	662	/* first reschedule or stop timer */
514	if (w->repeat)	663	if (w->repeat)
515	{	664	{
		665	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
516	w->at = now + w->repeat;	666	w->at = now + w->repeat;
517	assert (("timer timeout in the past, negative repeat?", w->at > now));
518	downheap ((WT *)timers, timercnt, 0);	667	downheap ((WT *)timers, timercnt, 0);
519	}	668	}
520	else	669	else
521	evtimer_stop (w); /* nonrepeating: stop timer */	670	ev_timer_stop (w); /* nonrepeating: stop timer */
		671
		672	event ((W)w, EV_TIMEOUT);
522	}	673	}
523	}	674	}
524		675
525	static void	676	static void
526	periodics_reify (void)	677	periodics_reify (void)
…		…
531		682
532	/* first reschedule or stop timer */	683	/* first reschedule or stop timer */
533	if (w->interval)	684	if (w->interval)
534	{	685	{
535	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	686	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));	687	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
537	downheap ((WT *)periodics, periodiccnt, 0);	688	downheap ((WT *)periodics, periodiccnt, 0);
538	}	689	}
539	else	690	else
540	evperiodic_stop (w); /* nonrepeating: stop timer */	691	ev_periodic_stop (w); /* nonrepeating: stop timer */
541		692
542	event ((W)w, EV_TIMEOUT);	693	event ((W)w, EV_PERIODIC);
543	}	694	}
544	}	695	}
545		696
546	static void	697	static void
547	periodics_reschedule (ev_tstamp diff)	698	periodics_reschedule (ev_tstamp diff)
…		…
557	{	708	{
558	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	709	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
559		710
560	if (fabs (diff) >= 1e-4)	711	if (fabs (diff) >= 1e-4)
561	{	712	{
562	evperiodic_stop (w);	713	ev_periodic_stop (w);
563	evperiodic_start (w);	714	ev_periodic_start (w);
564		715
565	i = 0; /* restart loop, inefficient, but time jumps should be rare */	716	i = 0; /* restart loop, inefficient, but time jumps should be rare */
566	}	717	}
567	}	718	}
568	}	719	}
569	}	720	}
570		721
		722	static int
		723	time_update_monotonic (void)
		724	{
		725	now = get_clock ();
		726
		727	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))
		728	{
		729	ev_now = now + diff;
		730	return 0;
		731	}
		732	else
		733	{
		734	now_floor = now;
		735	ev_now = ev_time ();
		736	return 1;
		737	}
		738	}
		739
571	static void	740	static void
572	time_update (void)	741	time_update (void)
573	{	742	{
574	int i;	743	int i;
575		744
576	ev_now = ev_time ();	745	#if EV_USE_MONOTONIC
577
578	if (have_monotonic)	746	if (expect_true (have_monotonic))
579	{	747	{
580	ev_tstamp odiff = diff;	748	if (time_update_monotonic ())
581
582	for (i = 4; --i; ) /* loop a few times, before making important decisions */
583	{	749	{
584	now = get_clock ();	750	ev_tstamp odiff = diff;
		751
		752	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		753	{
585	diff = ev_now - now;	754	diff = ev_now - now;
586		755
587	if (fabs (odiff - diff) < MIN_TIMEJUMP)	756	if (fabs (odiff - diff) < MIN_TIMEJUMP)
588	return; /* all is well */	757	return; /* all is well */
589		758
590	ev_now = ev_time ();	759	ev_now = ev_time ();
		760	now = get_clock ();
		761	now_floor = now;
		762	}
		763
		764	periodics_reschedule (diff - odiff);
		765	/* no timer adjustment, as the monotonic clock doesn't jump */
591	}	766	}
592
593	periodics_reschedule (diff - odiff);
594	/* no timer adjustment, as the monotonic clock doesn't jump */
595	}	767	}
596	else	768	else
		769	#endif
597	{	770	{
		771	ev_now = ev_time ();
		772
598	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	773	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
599	{	774	{
600	periodics_reschedule (ev_now - now);	775	periodics_reschedule (ev_now - now);
601		776
602	/* adjust timers. this is easy, as the offset is the same for all */	777	/* adjust timers. this is easy, as the offset is the same for all */
603	for (i = 0; i < timercnt; ++i)	778	for (i = 0; i < timercnt; ++i)
…		…
611	int ev_loop_done;	786	int ev_loop_done;
612		787
613	void ev_loop (int flags)	788	void ev_loop (int flags)
614	{	789	{
615	double block;	790	double block;
616	ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0;	791	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
617		792
618	do	793	do
619	{	794	{
620	/* queue check watchers (and execute them) */	795	/* queue check watchers (and execute them) */
621	if (preparecnt)	796	if (expect_false (preparecnt))
622	{	797	{
623	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	798	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
624	call_pending ();	799	call_pending ();
625	}	800	}
626		801
…		…
629		804
630	/* calculate blocking time */	805	/* calculate blocking time */
631		806
632	/* we only need this for !monotonic clockor timers, but as we basically	807	/* we only need this for !monotonic clockor timers, but as we basically
633	always have timers, we just calculate it always */	808	always have timers, we just calculate it always */
		809	#if EV_USE_MONOTONIC
		810	if (expect_true (have_monotonic))
		811	time_update_monotonic ();
		812	else
		813	#endif
		814	{
634	ev_now = ev_time ();	815	ev_now = ev_time ();
		816	now = ev_now;
		817	}
635		818
636	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	819	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
637	block = 0.;	820	block = 0.;
638	else	821	else
639	{	822	{
640	block = MAX_BLOCKTIME;	823	block = MAX_BLOCKTIME;
641		824
642	if (timercnt)	825	if (timercnt)
643	{	826	{
644	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	827	ev_tstamp to = timers [0]->at - now + method_fudge;
645	if (block > to) block = to;	828	if (block > to) block = to;
646	}	829	}
647		830
648	if (periodiccnt)	831	if (periodiccnt)
649	{	832	{
…		…
702	head = &(*head)->next;	885	head = &(*head)->next;
703	}	886	}
704	}	887	}
705		888
706	static void	889	static void
707	ev_clear (W w)	890	ev_clear_pending (W w)
708	{	891	{
709	if (w->pending)	892	if (w->pending)
710	{	893	{
711	pendings [w->pending - 1].w = 0;	894	pendings [ABSPRI (w)][w->pending - 1].w = 0;
712	w->pending = 0;	895	w->pending = 0;
713	}	896	}
714	}	897	}
715		898
716	static void	899	static void
717	ev_start (W w, int active)	900	ev_start (W w, int active)
718	{	901	{
		902	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		903	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		904
719	w->active = active;	905	w->active = active;
720	}	906	}
721		907
722	static void	908	static void
723	ev_stop (W w)	909	ev_stop (W w)
…		…
726	}	912	}
727		913
728	/*****************************************************************************/	914	/*****************************************************************************/
729		915
730	void	916	void
731	evio_start (struct ev_io *w)	917	ev_io_start (struct ev_io *w)
732	{	918	{
		919	int fd = w->fd;
		920
733	if (ev_is_active (w))	921	if (ev_is_active (w))
734	return;	922	return;
735		923
736	int fd = w->fd;	924	assert (("ev_io_start called with negative fd", fd >= 0));
737		925
738	ev_start ((W)w, 1);	926	ev_start ((W)w, 1);
739	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	927	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
740	wlist_add ((WL *)&anfds[fd].head, (WL)w);	928	wlist_add ((WL *)&anfds[fd].head, (WL)w);
741		929
742	++fdchangecnt;	930	fd_change (fd);
743	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
744	fdchanges [fdchangecnt - 1] = fd;
745	}	931	}
746		932
747	void	933	void
748	evio_stop (struct ev_io *w)	934	ev_io_stop (struct ev_io *w)
749	{	935	{
750	ev_clear ((W)w);	936	ev_clear_pending ((W)w);
751	if (!ev_is_active (w))	937	if (!ev_is_active (w))
752	return;	938	return;
753		939
754	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	940	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
755	ev_stop ((W)w);	941	ev_stop ((W)w);
756		942
757	++fdchangecnt;	943	fd_change (w->fd);
758	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
759	fdchanges [fdchangecnt - 1] = w->fd;
760	}	944	}
761		945
762	void	946	void
763	evtimer_start (struct ev_timer *w)	947	ev_timer_start (struct ev_timer *w)
764	{	948	{
765	if (ev_is_active (w))	949	if (ev_is_active (w))
766	return;	950	return;
767		951
768	w->at += now;	952	w->at += now;
769		953
770	assert (("timer repeat value less than zero not allowed", w->repeat >= 0.));	954	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
771		955
772	ev_start ((W)w, ++timercnt);	956	ev_start ((W)w, ++timercnt);
773	array_needsize (timers, timermax, timercnt, );	957	array_needsize (timers, timermax, timercnt, );
774	timers [timercnt - 1] = w;	958	timers [timercnt - 1] = w;
775	upheap ((WT *)timers, timercnt - 1);	959	upheap ((WT *)timers, timercnt - 1);
776	}	960	}
777		961
778	void	962	void
779	evtimer_stop (struct ev_timer *w)	963	ev_timer_stop (struct ev_timer *w)
780	{	964	{
781	ev_clear ((W)w);	965	ev_clear_pending ((W)w);
782	if (!ev_is_active (w))	966	if (!ev_is_active (w))
783	return;	967	return;
784		968
785	if (w->active < timercnt--)	969	if (w->active < timercnt--)
786	{	970	{
…		…
792		976
793	ev_stop ((W)w);	977	ev_stop ((W)w);
794	}	978	}
795		979
796	void	980	void
797	evtimer_again (struct ev_timer *w)	981	ev_timer_again (struct ev_timer *w)
798	{	982	{
799	if (ev_is_active (w))	983	if (ev_is_active (w))
800	{	984	{
801	if (w->repeat)	985	if (w->repeat)
802	{	986	{
803	w->at = now + w->repeat;	987	w->at = now + w->repeat;
804	downheap ((WT *)timers, timercnt, w->active - 1);	988	downheap ((WT *)timers, timercnt, w->active - 1);
805	}	989	}
806	else	990	else
807	evtimer_stop (w);	991	ev_timer_stop (w);
808	}	992	}
809	else if (w->repeat)	993	else if (w->repeat)
810	evtimer_start (w);	994	ev_timer_start (w);
811	}	995	}
812		996
813	void	997	void
814	evperiodic_start (struct ev_periodic *w)	998	ev_periodic_start (struct ev_periodic *w)
815	{	999	{
816	if (ev_is_active (w))	1000	if (ev_is_active (w))
817	return;	1001	return;
818		1002
819	assert (("periodic interval value less than zero not allowed", w->interval >= 0.));	1003	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
820		1004
821	/* this formula differs from the one in periodic_reify because we do not always round up */	1005	/* this formula differs from the one in periodic_reify because we do not always round up */
822	if (w->interval)	1006	if (w->interval)
823	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1007	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
824		1008
…		…
827	periodics [periodiccnt - 1] = w;	1011	periodics [periodiccnt - 1] = w;
828	upheap ((WT *)periodics, periodiccnt - 1);	1012	upheap ((WT *)periodics, periodiccnt - 1);
829	}	1013	}
830		1014
831	void	1015	void
832	evperiodic_stop (struct ev_periodic *w)	1016	ev_periodic_stop (struct ev_periodic *w)
833	{	1017	{
834	ev_clear ((W)w);	1018	ev_clear_pending ((W)w);
835	if (!ev_is_active (w))	1019	if (!ev_is_active (w))
836	return;	1020	return;
837		1021
838	if (w->active < periodiccnt--)	1022	if (w->active < periodiccnt--)
839	{	1023	{
…		…
842	}	1026	}
843		1027
844	ev_stop ((W)w);	1028	ev_stop ((W)w);
845	}	1029	}
846		1030
		1031	#ifndef SA_RESTART
		1032	# define SA_RESTART 0
		1033	#endif
		1034
847	void	1035	void
848	evsignal_start (struct ev_signal *w)	1036	ev_signal_start (struct ev_signal *w)
849	{	1037	{
850	if (ev_is_active (w))	1038	if (ev_is_active (w))
851	return;	1039	return;
		1040
		1041	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
852		1042
853	ev_start ((W)w, 1);	1043	ev_start ((W)w, 1);
854	array_needsize (signals, signalmax, w->signum, signals_init);	1044	array_needsize (signals, signalmax, w->signum, signals_init);
855	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1045	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
856		1046
857	if (!w->next)	1047	if (!w->next)
858	{	1048	{
859	struct sigaction sa;	1049	struct sigaction sa;
860	sa.sa_handler = sighandler;	1050	sa.sa_handler = sighandler;
861	sigfillset (&sa.sa_mask);	1051	sigfillset (&sa.sa_mask);
862	sa.sa_flags = 0;	1052	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
863	sigaction (w->signum, &sa, 0);	1053	sigaction (w->signum, &sa, 0);
864	}	1054	}
865	}	1055	}
866		1056
867	void	1057	void
868	evsignal_stop (struct ev_signal *w)	1058	ev_signal_stop (struct ev_signal *w)
869	{	1059	{
870	ev_clear ((W)w);	1060	ev_clear_pending ((W)w);
871	if (!ev_is_active (w))	1061	if (!ev_is_active (w))
872	return;	1062	return;
873		1063
874	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1064	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
875	ev_stop ((W)w);	1065	ev_stop ((W)w);
876		1066
877	if (!signals [w->signum - 1].head)	1067	if (!signals [w->signum - 1].head)
878	signal (w->signum, SIG_DFL);	1068	signal (w->signum, SIG_DFL);
879	}	1069	}
880		1070
		1071	void
881	void evidle_start (struct ev_idle *w)	1072	ev_idle_start (struct ev_idle *w)
882	{	1073	{
883	if (ev_is_active (w))	1074	if (ev_is_active (w))
884	return;	1075	return;
885		1076
886	ev_start ((W)w, ++idlecnt);	1077	ev_start ((W)w, ++idlecnt);
887	array_needsize (idles, idlemax, idlecnt, );	1078	array_needsize (idles, idlemax, idlecnt, );
888	idles [idlecnt - 1] = w;	1079	idles [idlecnt - 1] = w;
889	}	1080	}
890		1081
		1082	void
891	void evidle_stop (struct ev_idle *w)	1083	ev_idle_stop (struct ev_idle *w)
892	{	1084	{
893	ev_clear ((W)w);	1085	ev_clear_pending ((W)w);
894	if (ev_is_active (w))	1086	if (ev_is_active (w))
895	return;	1087	return;
896		1088
897	idles [w->active - 1] = idles [--idlecnt];	1089	idles [w->active - 1] = idles [--idlecnt];
898	ev_stop ((W)w);	1090	ev_stop ((W)w);
899	}	1091	}
900		1092
		1093	void
901	void evprepare_start (struct ev_prepare *w)	1094	ev_prepare_start (struct ev_prepare *w)
902	{	1095	{
903	if (ev_is_active (w))	1096	if (ev_is_active (w))
904	return;	1097	return;
905		1098
906	ev_start ((W)w, ++preparecnt);	1099	ev_start ((W)w, ++preparecnt);
907	array_needsize (prepares, preparemax, preparecnt, );	1100	array_needsize (prepares, preparemax, preparecnt, );
908	prepares [preparecnt - 1] = w;	1101	prepares [preparecnt - 1] = w;
909	}	1102	}
910		1103
		1104	void
911	void evprepare_stop (struct ev_prepare *w)	1105	ev_prepare_stop (struct ev_prepare *w)
912	{	1106	{
913	ev_clear ((W)w);	1107	ev_clear_pending ((W)w);
914	if (ev_is_active (w))	1108	if (ev_is_active (w))
915	return;	1109	return;
916		1110
917	prepares [w->active - 1] = prepares [--preparecnt];	1111	prepares [w->active - 1] = prepares [--preparecnt];
918	ev_stop ((W)w);	1112	ev_stop ((W)w);
919	}	1113	}
920		1114
		1115	void
921	void evcheck_start (struct ev_check *w)	1116	ev_check_start (struct ev_check *w)
922	{	1117	{
923	if (ev_is_active (w))	1118	if (ev_is_active (w))
924	return;	1119	return;
925		1120
926	ev_start ((W)w, ++checkcnt);	1121	ev_start ((W)w, ++checkcnt);
927	array_needsize (checks, checkmax, checkcnt, );	1122	array_needsize (checks, checkmax, checkcnt, );
928	checks [checkcnt - 1] = w;	1123	checks [checkcnt - 1] = w;
929	}	1124	}
930		1125
		1126	void
931	void evcheck_stop (struct ev_check *w)	1127	ev_check_stop (struct ev_check *w)
932	{	1128	{
933	ev_clear ((W)w);	1129	ev_clear_pending ((W)w);
934	if (ev_is_active (w))	1130	if (ev_is_active (w))
935	return;	1131	return;
936		1132
937	checks [w->active - 1] = checks [--checkcnt];	1133	checks [w->active - 1] = checks [--checkcnt];
938	ev_stop ((W)w);	1134	ev_stop ((W)w);
939	}	1135	}
940		1136
		1137	void
941	void evchild_start (struct ev_child *w)	1138	ev_child_start (struct ev_child *w)
942	{	1139	{
943	if (ev_is_active (w))	1140	if (ev_is_active (w))
944	return;	1141	return;
945		1142
946	ev_start ((W)w, 1);	1143	ev_start ((W)w, 1);
947	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1144	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
948	}	1145	}
949		1146
		1147	void
950	void evchild_stop (struct ev_child *w)	1148	ev_child_stop (struct ev_child *w)
951	{	1149	{
952	ev_clear ((W)w);	1150	ev_clear_pending ((W)w);
953	if (ev_is_active (w))	1151	if (ev_is_active (w))
954	return;	1152	return;
955		1153
956	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1154	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
957	ev_stop ((W)w);	1155	ev_stop ((W)w);
…		…
971	once_cb (struct ev_once *once, int revents)	1169	once_cb (struct ev_once *once, int revents)
972	{	1170	{
973	void (cb)(int revents, void arg) = once->cb;	1171	void (cb)(int revents, void arg) = once->cb;
974	void *arg = once->arg;	1172	void *arg = once->arg;
975		1173
976	evio_stop (&once->io);	1174	ev_io_stop (&once->io);
977	evtimer_stop (&once->to);	1175	ev_timer_stop (&once->to);
978	free (once);	1176	free (once);
979		1177
980	cb (revents, arg);	1178	cb (revents, arg);
981	}	1179	}
982		1180
…		…
996	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1194	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
997	{	1195	{
998	struct ev_once *once = malloc (sizeof (struct ev_once));	1196	struct ev_once *once = malloc (sizeof (struct ev_once));
999		1197
1000	if (!once)	1198	if (!once)
1001	cb (EV_ERROR, arg);	1199	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1002	else	1200	else
1003	{	1201	{
1004	once->cb = cb;	1202	once->cb = cb;
1005	once->arg = arg;	1203	once->arg = arg;
1006		1204
1007	evw_init (&once->io, once_cb_io);	1205	ev_watcher_init (&once->io, once_cb_io);
1008
1009	if (fd >= 0)	1206	if (fd >= 0)
1010	{	1207	{
1011	evio_set (&once->io, fd, events);	1208	ev_io_set (&once->io, fd, events);
1012	evio_start (&once->io);	1209	ev_io_start (&once->io);
1013	}	1210	}
1014		1211
1015	evw_init (&once->to, once_cb_to);	1212	ev_watcher_init (&once->to, once_cb_to);
1016
1017	if (timeout >= 0.)	1213	if (timeout >= 0.)
1018	{	1214	{
1019	evtimer_set (&once->to, timeout, 0.);	1215	ev_timer_set (&once->to, timeout, 0.);
1020	evtimer_start (&once->to);	1216	ev_timer_start (&once->to);
1021	}	1217	}
1022	}	1218	}
1023	}	1219	}
1024		1220
1025	/*****************************************************************************/	1221	/*****************************************************************************/
…		…
1036		1232
1037	static void	1233	static void
1038	ocb (struct ev_timer *w, int revents)	1234	ocb (struct ev_timer *w, int revents)
1039	{	1235	{
1040	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);	1236	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1041	evtimer_stop (w);	1237	ev_timer_stop (w);
1042	evtimer_start (w);	1238	ev_timer_start (w);
1043	}	1239	}
1044		1240
1045	static void	1241	static void
1046	scb (struct ev_signal *w, int revents)	1242	scb (struct ev_signal *w, int revents)
1047	{	1243	{
1048	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1244	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1049	evio_stop (&wio);	1245	ev_io_stop (&wio);
1050	evio_start (&wio);	1246	ev_io_start (&wio);
1051	}	1247	}
1052		1248
1053	static void	1249	static void
1054	gcb (struct ev_signal *w, int revents)	1250	gcb (struct ev_signal *w, int revents)
1055	{	1251	{
…		…
1059		1255
1060	int main (void)	1256	int main (void)
1061	{	1257	{
1062	ev_init (0);	1258	ev_init (0);
1063		1259
1064	evio_init (&wio, sin_cb, 0, EV_READ);	1260	ev_io_init (&wio, sin_cb, 0, EV_READ);
1065	evio_start (&wio);	1261	ev_io_start (&wio);
1066		1262
1067	struct ev_timer t[10000];	1263	struct ev_timer t[10000];
1068		1264
1069	#if 0	1265	#if 0
1070	int i;	1266	int i;
1071	for (i = 0; i < 10000; ++i)	1267	for (i = 0; i < 10000; ++i)
1072	{	1268	{
1073	struct ev_timer *w = t + i;	1269	struct ev_timer *w = t + i;
1074	evw_init (w, ocb, i);	1270	ev_watcher_init (w, ocb, i);
1075	evtimer_init_abs (w, ocb, drand48 (), 0.99775533);	1271	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1076	evtimer_start (w);	1272	ev_timer_start (w);
1077	if (drand48 () < 0.5)	1273	if (drand48 () < 0.5)
1078	evtimer_stop (w);	1274	ev_timer_stop (w);
1079	}	1275	}
1080	#endif	1276	#endif
1081		1277
1082	struct ev_timer t1;	1278	struct ev_timer t1;
1083	evtimer_init (&t1, ocb, 5, 10);	1279	ev_timer_init (&t1, ocb, 5, 10);
1084	evtimer_start (&t1);	1280	ev_timer_start (&t1);
1085		1281
1086	struct ev_signal sig;	1282	struct ev_signal sig;
1087	evsignal_init (&sig, scb, SIGQUIT);	1283	ev_signal_init (&sig, scb, SIGQUIT);
1088	evsignal_start (&sig);	1284	ev_signal_start (&sig);
1089		1285
1090	struct ev_check cw;	1286	struct ev_check cw;
1091	evcheck_init (&cw, gcb);	1287	ev_check_init (&cw, gcb);
1092	evcheck_start (&cw);	1288	ev_check_start (&cw);
1093		1289
1094	struct ev_idle iw;	1290	struct ev_idle iw;
1095	evidle_init (&iw, gcb);	1291	ev_idle_init (&iw, gcb);
1096	evidle_start (&iw);	1292	ev_idle_start (&iw);
1097		1293
1098	ev_loop (0);	1294	ev_loop (0);
1099		1295
1100	return 0;	1296	return 0;
1101	}	1297	}

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Comparing libev/ev.c (file contents): Revision 1.24 by root, Wed Oct 31 20:46:44 2007 UTC vs. Revision 1.47 by root, Sat Nov 3 11:44:44 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.24 by root, Wed Oct 31 20:46:44 2007 UTC vs.
Revision 1.47 by root, Sat Nov 3 11:44:44 2007 UTC