[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 1.48 by root, Sat Nov 3 12:19:31 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 ignore env variables */
		544	static int
		545	enable_secure ()
		546	{
		547	return getuid () != geteuid ()
		548	\|\| getgid () != getegid ();
		549	}
		550
392	int ev_init (int flags)	551	int ev_init (int methods)
393	{	552	{
394	if (!ev_method)	553	if (!ev_method)
395	{	554	{
396	#if HAVE_MONOTONIC	555	#if EV_USE_MONOTONIC
397	{	556	{
398	struct timespec ts;	557	struct timespec ts;
399	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	558	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
400	have_monotonic = 1;	559	have_monotonic = 1;
401	}	560	}
402	#endif	561	#endif
403		562
404	ev_now = ev_time ();	563	ev_now = ev_time ();
405	now = get_clock ();	564	now = get_clock ();
		565	now_floor = now;
406	diff = ev_now - now;	566	diff = ev_now - now;
407		567
408	if (pipe (sigpipe))	568	if (pipe (sigpipe))
409	return 0;	569	return 0;
410		570
		571	if (methods == EVMETHOD_AUTO)
		572	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		573	methods = atoi (getenv ("LIBEV_METHODS"));
		574	else
411	ev_method = EVMETHOD_NONE;	575	methods = EVMETHOD_ANY;
		576
		577	ev_method = 0;
		578	#if EV_USE_KQUEUE
		579	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);
		580	#endif
412	#if HAVE_EPOLL	581	#if EV_USE_EPOLL
413	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	582	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
414	#endif	583	#endif
		584	#if EV_USE_POLL
		585	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
		586	#endif
415	#if HAVE_SELECT	587	#if EV_USE_SELECT
416	if (ev_method == EVMETHOD_NONE) select_init (flags);	588	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
417	#endif	589	#endif
418		590
419	if (ev_method)	591	if (ev_method)
420	{	592	{
421	evw_init (&sigev, sigcb);	593	ev_watcher_init (&sigev, sigcb);
		594	ev_set_priority (&sigev, EV_MAXPRI);
422	siginit ();	595	siginit ();
423		596
		597	#ifndef WIN32
424	evsignal_init (&childev, childcb, SIGCHLD);	598	ev_signal_init (&childev, childcb, SIGCHLD);
		599	ev_set_priority (&childev, EV_MAXPRI);
425	evsignal_start (&childev);	600	ev_signal_start (&childev);
		601	#endif
426	}	602	}
427	}	603	}
428		604
429	return ev_method;	605	return ev_method;
430	}	606	}
431		607
432	/*****************************************************************************/	608	/*****************************************************************************/
433		609
434	void	610	void
435	ev_prefork (void)	611	ev_fork_prepare (void)
436	{	612	{
437	/* nop */	613	/* nop */
438	}	614	}
439		615
440	void	616	void
441	ev_postfork_parent (void)	617	ev_fork_parent (void)
442	{	618	{
443	/* nop */	619	/* nop */
444	}	620	}
445		621
446	void	622	void
447	ev_postfork_child (void)	623	ev_fork_child (void)
448	{	624	{
449	#if HAVE_EPOLL	625	#if EV_USE_EPOLL
450	if (ev_method == EVMETHOD_EPOLL)	626	if (ev_method == EVMETHOD_EPOLL)
451	epoll_postfork_child ();	627	epoll_postfork_child ();
452	#endif	628	#endif
453		629
454	evio_stop (&sigev);	630	ev_io_stop (&sigev);
455	close (sigpipe [0]);	631	close (sigpipe [0]);
456	close (sigpipe [1]);	632	close (sigpipe [1]);
457	pipe (sigpipe);	633	pipe (sigpipe);
458	siginit ();	634	siginit ();
459	}	635	}
460		636
461	/*****************************************************************************/	637	/*****************************************************************************/
462		638
463	static void	639	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)	640	call_pending (void)
491	{	641	{
		642	int pri;
		643
		644	for (pri = NUMPRI; pri--; )
492	while (pendingcnt)	645	while (pendingcnt [pri])
493	{	646	{
494	ANPENDING *p = pendings + --pendingcnt;	647	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
495		648
496	if (p->w)	649	if (p->w)
497	{	650	{
498	p->w->pending = 0;	651	p->w->pending = 0;
499	p->w->cb (p->w, p->events);	652	p->w->cb (p->w, p->events);
500	}	653	}
501	}	654	}
502	}	655	}
503		656
504	static void	657	static void
505	timers_reify (void)	658	timers_reify (void)
506	{	659	{
507	while (timercnt && timers [0]->at <= now)	660	while (timercnt && timers [0]->at <= now)
508	{	661	{
509	struct ev_timer *w = timers [0];	662	struct ev_timer *w = timers [0];
510
511	event ((W)w, EV_TIMEOUT);
512		663
513	/* first reschedule or stop timer */	664	/* first reschedule or stop timer */
514	if (w->repeat)	665	if (w->repeat)
515	{	666	{
		667	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
516	w->at = now + w->repeat;	668	w->at = now + w->repeat;
517	assert (("timer timeout in the past, negative repeat?", w->at > now));
518	downheap ((WT *)timers, timercnt, 0);	669	downheap ((WT *)timers, timercnt, 0);
519	}	670	}
520	else	671	else
521	evtimer_stop (w); /* nonrepeating: stop timer */	672	ev_timer_stop (w); /* nonrepeating: stop timer */
		673
		674	event ((W)w, EV_TIMEOUT);
522	}	675	}
523	}	676	}
524		677
525	static void	678	static void
526	periodics_reify (void)	679	periodics_reify (void)
…		…
531		684
532	/* first reschedule or stop timer */	685	/* first reschedule or stop timer */
533	if (w->interval)	686	if (w->interval)
534	{	687	{
535	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	688	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));	689	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
537	downheap ((WT *)periodics, periodiccnt, 0);	690	downheap ((WT *)periodics, periodiccnt, 0);
538	}	691	}
539	else	692	else
540	evperiodic_stop (w); /* nonrepeating: stop timer */	693	ev_periodic_stop (w); /* nonrepeating: stop timer */
541		694
542	event ((W)w, EV_TIMEOUT);	695	event ((W)w, EV_PERIODIC);
543	}	696	}
544	}	697	}
545		698
546	static void	699	static void
547	periodics_reschedule (ev_tstamp diff)	700	periodics_reschedule (ev_tstamp diff)
…		…
557	{	710	{
558	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	711	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
559		712
560	if (fabs (diff) >= 1e-4)	713	if (fabs (diff) >= 1e-4)
561	{	714	{
562	evperiodic_stop (w);	715	ev_periodic_stop (w);
563	evperiodic_start (w);	716	ev_periodic_start (w);
564		717
565	i = 0; /* restart loop, inefficient, but time jumps should be rare */	718	i = 0; /* restart loop, inefficient, but time jumps should be rare */
566	}	719	}
567	}	720	}
568	}	721	}
569	}	722	}
570		723
		724	static int
		725	time_update_monotonic (void)
		726	{
		727	now = get_clock ();
		728
		729	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))
		730	{
		731	ev_now = now + diff;
		732	return 0;
		733	}
		734	else
		735	{
		736	now_floor = now;
		737	ev_now = ev_time ();
		738	return 1;
		739	}
		740	}
		741
571	static void	742	static void
572	time_update (void)	743	time_update (void)
573	{	744	{
574	int i;	745	int i;
575		746
576	ev_now = ev_time ();	747	#if EV_USE_MONOTONIC
577
578	if (have_monotonic)	748	if (expect_true (have_monotonic))
579	{	749	{
580	ev_tstamp odiff = diff;	750	if (time_update_monotonic ())
581
582	for (i = 4; --i; ) /* loop a few times, before making important decisions */
583	{	751	{
584	now = get_clock ();	752	ev_tstamp odiff = diff;
		753
		754	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		755	{
585	diff = ev_now - now;	756	diff = ev_now - now;
586		757
587	if (fabs (odiff - diff) < MIN_TIMEJUMP)	758	if (fabs (odiff - diff) < MIN_TIMEJUMP)
588	return; /* all is well */	759	return; /* all is well */
589		760
590	ev_now = ev_time ();	761	ev_now = ev_time ();
		762	now = get_clock ();
		763	now_floor = now;
		764	}
		765
		766	periodics_reschedule (diff - odiff);
		767	/* no timer adjustment, as the monotonic clock doesn't jump */
591	}	768	}
592
593	periodics_reschedule (diff - odiff);
594	/* no timer adjustment, as the monotonic clock doesn't jump */
595	}	769	}
596	else	770	else
		771	#endif
597	{	772	{
		773	ev_now = ev_time ();
		774
598	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	775	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
599	{	776	{
600	periodics_reschedule (ev_now - now);	777	periodics_reschedule (ev_now - now);
601		778
602	/* adjust timers. this is easy, as the offset is the same for all */	779	/* adjust timers. this is easy, as the offset is the same for all */
603	for (i = 0; i < timercnt; ++i)	780	for (i = 0; i < timercnt; ++i)
…		…
611	int ev_loop_done;	788	int ev_loop_done;
612		789
613	void ev_loop (int flags)	790	void ev_loop (int flags)
614	{	791	{
615	double block;	792	double block;
616	ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0;	793	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
617		794
618	do	795	do
619	{	796	{
620	/* queue check watchers (and execute them) */	797	/* queue check watchers (and execute them) */
621	if (preparecnt)	798	if (expect_false (preparecnt))
622	{	799	{
623	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	800	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
624	call_pending ();	801	call_pending ();
625	}	802	}
626		803
…		…
629		806
630	/* calculate blocking time */	807	/* calculate blocking time */
631		808
632	/* we only need this for !monotonic clockor timers, but as we basically	809	/* we only need this for !monotonic clockor timers, but as we basically
633	always have timers, we just calculate it always */	810	always have timers, we just calculate it always */
		811	#if EV_USE_MONOTONIC
		812	if (expect_true (have_monotonic))
		813	time_update_monotonic ();
		814	else
		815	#endif
		816	{
634	ev_now = ev_time ();	817	ev_now = ev_time ();
		818	now = ev_now;
		819	}
635		820
636	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	821	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
637	block = 0.;	822	block = 0.;
638	else	823	else
639	{	824	{
640	block = MAX_BLOCKTIME;	825	block = MAX_BLOCKTIME;
641		826
642	if (timercnt)	827	if (timercnt)
643	{	828	{
644	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	829	ev_tstamp to = timers [0]->at - now + method_fudge;
645	if (block > to) block = to;	830	if (block > to) block = to;
646	}	831	}
647		832
648	if (periodiccnt)	833	if (periodiccnt)
649	{	834	{
…		…
702	head = &(*head)->next;	887	head = &(*head)->next;
703	}	888	}
704	}	889	}
705		890
706	static void	891	static void
707	ev_clear (W w)	892	ev_clear_pending (W w)
708	{	893	{
709	if (w->pending)	894	if (w->pending)
710	{	895	{
711	pendings [w->pending - 1].w = 0;	896	pendings [ABSPRI (w)][w->pending - 1].w = 0;
712	w->pending = 0;	897	w->pending = 0;
713	}	898	}
714	}	899	}
715		900
716	static void	901	static void
717	ev_start (W w, int active)	902	ev_start (W w, int active)
718	{	903	{
		904	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		905	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		906
719	w->active = active;	907	w->active = active;
720	}	908	}
721		909
722	static void	910	static void
723	ev_stop (W w)	911	ev_stop (W w)
…		…
726	}	914	}
727		915
728	/*****************************************************************************/	916	/*****************************************************************************/
729		917
730	void	918	void
731	evio_start (struct ev_io *w)	919	ev_io_start (struct ev_io *w)
732	{	920	{
		921	int fd = w->fd;
		922
733	if (ev_is_active (w))	923	if (ev_is_active (w))
734	return;	924	return;
735		925
736	int fd = w->fd;	926	assert (("ev_io_start called with negative fd", fd >= 0));
737		927
738	ev_start ((W)w, 1);	928	ev_start ((W)w, 1);
739	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	929	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
740	wlist_add ((WL *)&anfds[fd].head, (WL)w);	930	wlist_add ((WL *)&anfds[fd].head, (WL)w);
741		931
742	++fdchangecnt;	932	fd_change (fd);
743	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
744	fdchanges [fdchangecnt - 1] = fd;
745	}	933	}
746		934
747	void	935	void
748	evio_stop (struct ev_io *w)	936	ev_io_stop (struct ev_io *w)
749	{	937	{
750	ev_clear ((W)w);	938	ev_clear_pending ((W)w);
751	if (!ev_is_active (w))	939	if (!ev_is_active (w))
752	return;	940	return;
753		941
754	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	942	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
755	ev_stop ((W)w);	943	ev_stop ((W)w);
756		944
757	++fdchangecnt;	945	fd_change (w->fd);
758	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
759	fdchanges [fdchangecnt - 1] = w->fd;
760	}	946	}
761		947
762	void	948	void
763	evtimer_start (struct ev_timer *w)	949	ev_timer_start (struct ev_timer *w)
764	{	950	{
765	if (ev_is_active (w))	951	if (ev_is_active (w))
766	return;	952	return;
767		953
768	w->at += now;	954	w->at += now;
769		955
770	assert (("timer repeat value less than zero not allowed", w->repeat >= 0.));	956	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
771		957
772	ev_start ((W)w, ++timercnt);	958	ev_start ((W)w, ++timercnt);
773	array_needsize (timers, timermax, timercnt, );	959	array_needsize (timers, timermax, timercnt, );
774	timers [timercnt - 1] = w;	960	timers [timercnt - 1] = w;
775	upheap ((WT *)timers, timercnt - 1);	961	upheap ((WT *)timers, timercnt - 1);
776	}	962	}
777		963
778	void	964	void
779	evtimer_stop (struct ev_timer *w)	965	ev_timer_stop (struct ev_timer *w)
780	{	966	{
781	ev_clear ((W)w);	967	ev_clear_pending ((W)w);
782	if (!ev_is_active (w))	968	if (!ev_is_active (w))
783	return;	969	return;
784		970
785	if (w->active < timercnt--)	971	if (w->active < timercnt--)
786	{	972	{
…		…
792		978
793	ev_stop ((W)w);	979	ev_stop ((W)w);
794	}	980	}
795		981
796	void	982	void
797	evtimer_again (struct ev_timer *w)	983	ev_timer_again (struct ev_timer *w)
798	{	984	{
799	if (ev_is_active (w))	985	if (ev_is_active (w))
800	{	986	{
801	if (w->repeat)	987	if (w->repeat)
802	{	988	{
803	w->at = now + w->repeat;	989	w->at = now + w->repeat;
804	downheap ((WT *)timers, timercnt, w->active - 1);	990	downheap ((WT *)timers, timercnt, w->active - 1);
805	}	991	}
806	else	992	else
807	evtimer_stop (w);	993	ev_timer_stop (w);
808	}	994	}
809	else if (w->repeat)	995	else if (w->repeat)
810	evtimer_start (w);	996	ev_timer_start (w);
811	}	997	}
812		998
813	void	999	void
814	evperiodic_start (struct ev_periodic *w)	1000	ev_periodic_start (struct ev_periodic *w)
815	{	1001	{
816	if (ev_is_active (w))	1002	if (ev_is_active (w))
817	return;	1003	return;
818		1004
819	assert (("periodic interval value less than zero not allowed", w->interval >= 0.));	1005	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
820		1006
821	/* this formula differs from the one in periodic_reify because we do not always round up */	1007	/* this formula differs from the one in periodic_reify because we do not always round up */
822	if (w->interval)	1008	if (w->interval)
823	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1009	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
824		1010
…		…
827	periodics [periodiccnt - 1] = w;	1013	periodics [periodiccnt - 1] = w;
828	upheap ((WT *)periodics, periodiccnt - 1);	1014	upheap ((WT *)periodics, periodiccnt - 1);
829	}	1015	}
830		1016
831	void	1017	void
832	evperiodic_stop (struct ev_periodic *w)	1018	ev_periodic_stop (struct ev_periodic *w)
833	{	1019	{
834	ev_clear ((W)w);	1020	ev_clear_pending ((W)w);
835	if (!ev_is_active (w))	1021	if (!ev_is_active (w))
836	return;	1022	return;
837		1023
838	if (w->active < periodiccnt--)	1024	if (w->active < periodiccnt--)
839	{	1025	{
…		…
842	}	1028	}
843		1029
844	ev_stop ((W)w);	1030	ev_stop ((W)w);
845	}	1031	}
846		1032
		1033	#ifndef SA_RESTART
		1034	# define SA_RESTART 0
		1035	#endif
		1036
847	void	1037	void
848	evsignal_start (struct ev_signal *w)	1038	ev_signal_start (struct ev_signal *w)
849	{	1039	{
850	if (ev_is_active (w))	1040	if (ev_is_active (w))
851	return;	1041	return;
		1042
		1043	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
852		1044
853	ev_start ((W)w, 1);	1045	ev_start ((W)w, 1);
854	array_needsize (signals, signalmax, w->signum, signals_init);	1046	array_needsize (signals, signalmax, w->signum, signals_init);
855	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1047	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
856		1048
857	if (!w->next)	1049	if (!w->next)
858	{	1050	{
859	struct sigaction sa;	1051	struct sigaction sa;
860	sa.sa_handler = sighandler;	1052	sa.sa_handler = sighandler;
861	sigfillset (&sa.sa_mask);	1053	sigfillset (&sa.sa_mask);
862	sa.sa_flags = 0;	1054	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
863	sigaction (w->signum, &sa, 0);	1055	sigaction (w->signum, &sa, 0);
864	}	1056	}
865	}	1057	}
866		1058
867	void	1059	void
868	evsignal_stop (struct ev_signal *w)	1060	ev_signal_stop (struct ev_signal *w)
869	{	1061	{
870	ev_clear ((W)w);	1062	ev_clear_pending ((W)w);
871	if (!ev_is_active (w))	1063	if (!ev_is_active (w))
872	return;	1064	return;
873		1065
874	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1066	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
875	ev_stop ((W)w);	1067	ev_stop ((W)w);
876		1068
877	if (!signals [w->signum - 1].head)	1069	if (!signals [w->signum - 1].head)
878	signal (w->signum, SIG_DFL);	1070	signal (w->signum, SIG_DFL);
879	}	1071	}
880		1072
		1073	void
881	void evidle_start (struct ev_idle *w)	1074	ev_idle_start (struct ev_idle *w)
882	{	1075	{
883	if (ev_is_active (w))	1076	if (ev_is_active (w))
884	return;	1077	return;
885		1078
886	ev_start ((W)w, ++idlecnt);	1079	ev_start ((W)w, ++idlecnt);
887	array_needsize (idles, idlemax, idlecnt, );	1080	array_needsize (idles, idlemax, idlecnt, );
888	idles [idlecnt - 1] = w;	1081	idles [idlecnt - 1] = w;
889	}	1082	}
890		1083
		1084	void
891	void evidle_stop (struct ev_idle *w)	1085	ev_idle_stop (struct ev_idle *w)
892	{	1086	{
893	ev_clear ((W)w);	1087	ev_clear_pending ((W)w);
894	if (ev_is_active (w))	1088	if (ev_is_active (w))
895	return;	1089	return;
896		1090
897	idles [w->active - 1] = idles [--idlecnt];	1091	idles [w->active - 1] = idles [--idlecnt];
898	ev_stop ((W)w);	1092	ev_stop ((W)w);
899	}	1093	}
900		1094
		1095	void
901	void evprepare_start (struct ev_prepare *w)	1096	ev_prepare_start (struct ev_prepare *w)
902	{	1097	{
903	if (ev_is_active (w))	1098	if (ev_is_active (w))
904	return;	1099	return;
905		1100
906	ev_start ((W)w, ++preparecnt);	1101	ev_start ((W)w, ++preparecnt);
907	array_needsize (prepares, preparemax, preparecnt, );	1102	array_needsize (prepares, preparemax, preparecnt, );
908	prepares [preparecnt - 1] = w;	1103	prepares [preparecnt - 1] = w;
909	}	1104	}
910		1105
		1106	void
911	void evprepare_stop (struct ev_prepare *w)	1107	ev_prepare_stop (struct ev_prepare *w)
912	{	1108	{
913	ev_clear ((W)w);	1109	ev_clear_pending ((W)w);
914	if (ev_is_active (w))	1110	if (ev_is_active (w))
915	return;	1111	return;
916		1112
917	prepares [w->active - 1] = prepares [--preparecnt];	1113	prepares [w->active - 1] = prepares [--preparecnt];
918	ev_stop ((W)w);	1114	ev_stop ((W)w);
919	}	1115	}
920		1116
		1117	void
921	void evcheck_start (struct ev_check *w)	1118	ev_check_start (struct ev_check *w)
922	{	1119	{
923	if (ev_is_active (w))	1120	if (ev_is_active (w))
924	return;	1121	return;
925		1122
926	ev_start ((W)w, ++checkcnt);	1123	ev_start ((W)w, ++checkcnt);
927	array_needsize (checks, checkmax, checkcnt, );	1124	array_needsize (checks, checkmax, checkcnt, );
928	checks [checkcnt - 1] = w;	1125	checks [checkcnt - 1] = w;
929	}	1126	}
930		1127
		1128	void
931	void evcheck_stop (struct ev_check *w)	1129	ev_check_stop (struct ev_check *w)
932	{	1130	{
933	ev_clear ((W)w);	1131	ev_clear_pending ((W)w);
934	if (ev_is_active (w))	1132	if (ev_is_active (w))
935	return;	1133	return;
936		1134
937	checks [w->active - 1] = checks [--checkcnt];	1135	checks [w->active - 1] = checks [--checkcnt];
938	ev_stop ((W)w);	1136	ev_stop ((W)w);
939	}	1137	}
940		1138
		1139	void
941	void evchild_start (struct ev_child *w)	1140	ev_child_start (struct ev_child *w)
942	{	1141	{
943	if (ev_is_active (w))	1142	if (ev_is_active (w))
944	return;	1143	return;
945		1144
946	ev_start ((W)w, 1);	1145	ev_start ((W)w, 1);
947	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1146	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
948	}	1147	}
949		1148
		1149	void
950	void evchild_stop (struct ev_child *w)	1150	ev_child_stop (struct ev_child *w)
951	{	1151	{
952	ev_clear ((W)w);	1152	ev_clear_pending ((W)w);
953	if (ev_is_active (w))	1153	if (ev_is_active (w))
954	return;	1154	return;
955		1155
956	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1156	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
957	ev_stop ((W)w);	1157	ev_stop ((W)w);
…		…
971	once_cb (struct ev_once *once, int revents)	1171	once_cb (struct ev_once *once, int revents)
972	{	1172	{
973	void (cb)(int revents, void arg) = once->cb;	1173	void (cb)(int revents, void arg) = once->cb;
974	void *arg = once->arg;	1174	void *arg = once->arg;
975		1175
976	evio_stop (&once->io);	1176	ev_io_stop (&once->io);
977	evtimer_stop (&once->to);	1177	ev_timer_stop (&once->to);
978	free (once);	1178	free (once);
979		1179
980	cb (revents, arg);	1180	cb (revents, arg);
981	}	1181	}
982		1182
…		…
996	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1196	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
997	{	1197	{
998	struct ev_once *once = malloc (sizeof (struct ev_once));	1198	struct ev_once *once = malloc (sizeof (struct ev_once));
999		1199
1000	if (!once)	1200	if (!once)
1001	cb (EV_ERROR, arg);	1201	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1002	else	1202	else
1003	{	1203	{
1004	once->cb = cb;	1204	once->cb = cb;
1005	once->arg = arg;	1205	once->arg = arg;
1006		1206
1007	evw_init (&once->io, once_cb_io);	1207	ev_watcher_init (&once->io, once_cb_io);
1008
1009	if (fd >= 0)	1208	if (fd >= 0)
1010	{	1209	{
1011	evio_set (&once->io, fd, events);	1210	ev_io_set (&once->io, fd, events);
1012	evio_start (&once->io);	1211	ev_io_start (&once->io);
1013	}	1212	}
1014		1213
1015	evw_init (&once->to, once_cb_to);	1214	ev_watcher_init (&once->to, once_cb_to);
1016
1017	if (timeout >= 0.)	1215	if (timeout >= 0.)
1018	{	1216	{
1019	evtimer_set (&once->to, timeout, 0.);	1217	ev_timer_set (&once->to, timeout, 0.);
1020	evtimer_start (&once->to);	1218	ev_timer_start (&once->to);
1021	}	1219	}
1022	}	1220	}
1023	}	1221	}
1024		1222
1025	/*****************************************************************************/	1223	/*****************************************************************************/
…		…
1036		1234
1037	static void	1235	static void
1038	ocb (struct ev_timer *w, int revents)	1236	ocb (struct ev_timer *w, int revents)
1039	{	1237	{
1040	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);	1238	//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);	1239	ev_timer_stop (w);
1042	evtimer_start (w);	1240	ev_timer_start (w);
1043	}	1241	}
1044		1242
1045	static void	1243	static void
1046	scb (struct ev_signal *w, int revents)	1244	scb (struct ev_signal *w, int revents)
1047	{	1245	{
1048	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1246	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1049	evio_stop (&wio);	1247	ev_io_stop (&wio);
1050	evio_start (&wio);	1248	ev_io_start (&wio);
1051	}	1249	}
1052		1250
1053	static void	1251	static void
1054	gcb (struct ev_signal *w, int revents)	1252	gcb (struct ev_signal *w, int revents)
1055	{	1253	{
…		…
1059		1257
1060	int main (void)	1258	int main (void)
1061	{	1259	{
1062	ev_init (0);	1260	ev_init (0);
1063		1261
1064	evio_init (&wio, sin_cb, 0, EV_READ);	1262	ev_io_init (&wio, sin_cb, 0, EV_READ);
1065	evio_start (&wio);	1263	ev_io_start (&wio);
1066		1264
1067	struct ev_timer t[10000];	1265	struct ev_timer t[10000];
1068		1266
1069	#if 0	1267	#if 0
1070	int i;	1268	int i;
1071	for (i = 0; i < 10000; ++i)	1269	for (i = 0; i < 10000; ++i)
1072	{	1270	{
1073	struct ev_timer *w = t + i;	1271	struct ev_timer *w = t + i;
1074	evw_init (w, ocb, i);	1272	ev_watcher_init (w, ocb, i);
1075	evtimer_init_abs (w, ocb, drand48 (), 0.99775533);	1273	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1076	evtimer_start (w);	1274	ev_timer_start (w);
1077	if (drand48 () < 0.5)	1275	if (drand48 () < 0.5)
1078	evtimer_stop (w);	1276	ev_timer_stop (w);
1079	}	1277	}
1080	#endif	1278	#endif
1081		1279
1082	struct ev_timer t1;	1280	struct ev_timer t1;
1083	evtimer_init (&t1, ocb, 5, 10);	1281	ev_timer_init (&t1, ocb, 5, 10);
1084	evtimer_start (&t1);	1282	ev_timer_start (&t1);
1085		1283
1086	struct ev_signal sig;	1284	struct ev_signal sig;
1087	evsignal_init (&sig, scb, SIGQUIT);	1285	ev_signal_init (&sig, scb, SIGQUIT);
1088	evsignal_start (&sig);	1286	ev_signal_start (&sig);
1089		1287
1090	struct ev_check cw;	1288	struct ev_check cw;
1091	evcheck_init (&cw, gcb);	1289	ev_check_init (&cw, gcb);
1092	evcheck_start (&cw);	1290	ev_check_start (&cw);
1093		1291
1094	struct ev_idle iw;	1292	struct ev_idle iw;
1095	evidle_init (&iw, gcb);	1293	ev_idle_init (&iw, gcb);
1096	evidle_start (&iw);	1294	ev_idle_start (&iw);
1097		1295
1098	ev_loop (0);	1296	ev_loop (0);
1099		1297
1100	return 0;	1298	return 0;
1101	}	1299	}

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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 1.48 by root, Sat Nov 3 12:19:31 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 1.48 by root, Sat Nov 3 12:19:31 2007 UTC