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

Comparing libev/ev.c (file contents):
Revision 1.26 by root, Wed Oct 31 21:50:15 2007 UTC vs.
Revision 1.50 by root, Sat Nov 3 19:41:55 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	#ifndef EV_STANDALONE
		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); \
…		…
129		175
130	/*****************************************************************************/	176	/*****************************************************************************/
131		177
132	typedef struct	178	typedef struct
133	{	179	{
134	struct ev_io *head;	180	struct ev_watcher_list *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	{
179	ANFD *anfd = anfds + fd;	237	ANFD *anfd = anfds + fd;
180	struct ev_io *w;	238	struct ev_io *w;
181		239
182	for (w = anfd->head; w; w = w->next)	240	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
183	{	241	{
184	int ev = w->events & events;	242	int ev = w->events & events;
185		243
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 = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)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	while ((w = (struct ev_io *)anfds [fd].head))
		301	{
		302	ev_io_stop (w);
		303	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		304	}
198	}	305	}
199		306
200	/* called on EBADF to verify fds */	307	/* called on EBADF to verify fds */
201	static void	308	static void
202	fd_recheck (void)	309	fd_ebadf (void)
203	{	310	{
204	int fd;	311	int fd;
205		312
206	for (fd = 0; fd < anfdmax; ++fd)	313	for (fd = 0; fd < anfdmax; ++fd)
207	if (anfds [fd].wev)	314	if (anfds [fd].events)
208	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	315	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
209	while (anfds [fd].head)	316	fd_kill (fd);
		317	}
		318
		319	/* called on ENOMEM in select/poll to kill some fds and retry */
		320	static void
		321	fd_enomem (void)
		322	{
		323	int fd = anfdmax;
		324
		325	while (fd--)
		326	if (anfds [fd].events)
210	{	327	{
211	event ((W)anfds [fd].head, EV_ERROR);	328	close (fd);
212	evio_stop (anfds [fd].head);	329	fd_kill (fd);
		330	return;
213	}	331	}
214	}	332	}
215		333
216	/*****************************************************************************/	334	/*****************************************************************************/
217		335
218	static struct ev_timer **timers;	336	static struct ev_timer **timers;
…		…
264		382
265	/*****************************************************************************/	383	/*****************************************************************************/
266		384
267	typedef struct	385	typedef struct
268	{	386	{
269	struct ev_signal *head;	387	struct ev_watcher_list *head;
270	sig_atomic_t gotsig;	388	sig_atomic_t volatile gotsig;
271	} ANSIG;	389	} ANSIG;
272		390
273	static ANSIG *signals;	391	static ANSIG *signals;
274	static int signalmax;	392	static int signalmax;
275		393
276	static int sigpipe [2];	394	static int sigpipe [2];
277	static sig_atomic_t gotsig;	395	static sig_atomic_t volatile gotsig;
278	static struct ev_io sigev;	396	static struct ev_io sigev;
279		397
280	static void	398	static void
281	signals_init (ANSIG *base, int count)	399	signals_init (ANSIG *base, int count)
282	{	400	{
283	while (count--)	401	while (count--)
284	{	402	{
285	base->head = 0;	403	base->head = 0;
286	base->gotsig = 0;	404	base->gotsig = 0;
		405
287	++base;	406	++base;
288	}	407	}
289	}	408	}
290		409
291	static void	410	static void
…		…
293	{	412	{
294	signals [signum - 1].gotsig = 1;	413	signals [signum - 1].gotsig = 1;
295		414
296	if (!gotsig)	415	if (!gotsig)
297	{	416	{
		417	int old_errno = errno;
298	gotsig = 1;	418	gotsig = 1;
299	write (sigpipe [1], &gotsig, 1);	419	write (sigpipe [1], &signum, 1);
		420	errno = old_errno;
300	}	421	}
301	}	422	}
302		423
303	static void	424	static void
304	sigcb (struct ev_io *iow, int revents)	425	sigcb (struct ev_io *iow, int revents)
305	{	426	{
306	struct ev_signal *w;	427	struct ev_watcher_list *w;
307	int sig;	428	int signum;
308		429
		430	read (sigpipe [0], &revents, 1);
309	gotsig = 0;	431	gotsig = 0;
310	read (sigpipe [0], &revents, 1);
311		432
312	for (sig = signalmax; sig--; )	433	for (signum = signalmax; signum--; )
313	if (signals [sig].gotsig)	434	if (signals [signum].gotsig)
314	{	435	{
315	signals [sig].gotsig = 0;	436	signals [signum].gotsig = 0;
316		437
317	for (w = signals [sig].head; w; w = w->next)	438	for (w = signals [signum].head; w; w = w->next)
318	event ((W)w, EV_SIGNAL);	439	event ((W)w, EV_SIGNAL);
319	}	440	}
320	}	441	}
321		442
322	static void	443	static void
323	siginit (void)	444	siginit (void)
324	{	445	{
		446	#ifndef WIN32
325	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	447	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
326	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	448	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
327		449
328	/* rather than sort out wether we really need nb, set it */	450	/* rather than sort out wether we really need nb, set it */
329	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	451	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
330	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	452	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		453	#endif
331		454
332	evio_set (&sigev, sigpipe [0], EV_READ);	455	ev_io_set (&sigev, sigpipe [0], EV_READ);
333	evio_start (&sigev);	456	ev_io_start (&sigev);
334	}	457	}
335		458
336	/*****************************************************************************/	459	/*****************************************************************************/
337		460
338	static struct ev_idle **idles;	461	static struct ev_idle **idles;
…		…
347	/*****************************************************************************/	470	/*****************************************************************************/
348		471
349	static struct ev_child *childs [PID_HASHSIZE];	472	static struct ev_child *childs [PID_HASHSIZE];
350	static struct ev_signal childev;	473	static struct ev_signal childev;
351		474
		475	#ifndef WIN32
		476
352	#ifndef WCONTINUED	477	#ifndef WCONTINUED
353	# define WCONTINUED 0	478	# define WCONTINUED 0
354	#endif	479	#endif
355		480
356	static void	481	static void
		482	child_reap (struct ev_signal *sw, int chain, int pid, int status)
		483	{
		484	struct ev_child *w;
		485
		486	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		487	if (w->pid == pid \|\| !w->pid)
		488	{
		489	w->priority = sw->priority; /* need to do it now */
		490	w->rpid = pid;
		491	w->rstatus = status;
		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
362	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	501	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
363	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	502	{
364	if (w->pid == pid \|\| w->pid == -1)	503	/* make sure we are called again until all childs have been reaped */
365	{
366	w->status = status;
367	event ((W)w, EV_CHILD);	504	event ((W)sw, EV_SIGNAL);
368	}	505
		506	child_reap (sw, pid, pid, status);
		507	child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		508	}
369	}	509	}
		510
		511	#endif
370		512
371	/*****************************************************************************/	513	/*****************************************************************************/
372		514
		515	#if EV_USE_KQUEUE
		516	# include "ev_kqueue.c"
		517	#endif
373	#if HAVE_EPOLL	518	#if EV_USE_EPOLL
374	# include "ev_epoll.c"	519	# include "ev_epoll.c"
375	#endif	520	#endif
		521	#if EV_USE_POLL
		522	# include "ev_poll.c"
		523	#endif
376	#if HAVE_SELECT	524	#if EV_USE_SELECT
377	# include "ev_select.c"	525	# include "ev_select.c"
378	#endif	526	#endif
379		527
380	int	528	int
381	ev_version_major (void)	529	ev_version_major (void)
…		…
387	ev_version_minor (void)	535	ev_version_minor (void)
388	{	536	{
389	return EV_VERSION_MINOR;	537	return EV_VERSION_MINOR;
390	}	538	}
391		539
		540	/* return true if we are running with elevated privileges and should ignore env variables */
		541	static int
		542	enable_secure ()
		543	{
		544	#ifdef WIN32
		545	return 0;
		546	#else
		547	return getuid () != geteuid ()
		548	\|\| getgid () != getegid ();
		549	#endif
		550	}
		551
392	int ev_init (int flags)	552	int ev_init (int methods)
393	{	553	{
394	if (!ev_method)	554	if (!ev_method)
395	{	555	{
396	#if HAVE_MONOTONIC	556	#if EV_USE_MONOTONIC
397	{	557	{
398	struct timespec ts;	558	struct timespec ts;
399	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	559	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
400	have_monotonic = 1;	560	have_monotonic = 1;
401	}	561	}
402	#endif	562	#endif
403		563
404	ev_now = ev_time ();	564	ev_now = ev_time ();
405	now = get_clock ();	565	now = get_clock ();
		566	now_floor = now;
406	diff = ev_now - now;	567	diff = ev_now - now;
407		568
408	if (pipe (sigpipe))	569	if (pipe (sigpipe))
409	return 0;	570	return 0;
410		571
		572	if (methods == EVMETHOD_AUTO)
		573	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		574	methods = atoi (getenv ("LIBEV_METHODS"));
		575	else
411	ev_method = EVMETHOD_NONE;	576	methods = EVMETHOD_ANY;
		577
		578	ev_method = 0;
		579	#if EV_USE_KQUEUE
		580	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);
		581	#endif
412	#if HAVE_EPOLL	582	#if EV_USE_EPOLL
413	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	583	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
414	#endif	584	#endif
		585	#if EV_USE_POLL
		586	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
		587	#endif
415	#if HAVE_SELECT	588	#if EV_USE_SELECT
416	if (ev_method == EVMETHOD_NONE) select_init (flags);	589	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
417	#endif	590	#endif
418		591
419	if (ev_method)	592	if (ev_method)
420	{	593	{
421	evw_init (&sigev, sigcb);	594	ev_watcher_init (&sigev, sigcb);
		595	ev_set_priority (&sigev, EV_MAXPRI);
422	siginit ();	596	siginit ();
423		597
		598	#ifndef WIN32
424	evsignal_init (&childev, childcb, SIGCHLD);	599	ev_signal_init (&childev, childcb, SIGCHLD);
		600	ev_set_priority (&childev, EV_MAXPRI);
425	evsignal_start (&childev);	601	ev_signal_start (&childev);
		602	#endif
426	}	603	}
427	}	604	}
428		605
429	return ev_method;	606	return ev_method;
430	}	607	}
431		608
432	/*****************************************************************************/	609	/*****************************************************************************/
433		610
434	void	611	void
435	ev_prefork (void)	612	ev_fork_prepare (void)
436	{	613	{
437	/* nop */	614	/* nop */
438	}	615	}
439		616
440	void	617	void
441	ev_postfork_parent (void)	618	ev_fork_parent (void)
442	{	619	{
443	/* nop */	620	/* nop */
444	}	621	}
445		622
446	void	623	void
447	ev_postfork_child (void)	624	ev_fork_child (void)
448	{	625	{
449	#if HAVE_EPOLL	626	#if EV_USE_EPOLL
450	if (ev_method == EVMETHOD_EPOLL)	627	if (ev_method == EVMETHOD_EPOLL)
451	epoll_postfork_child ();	628	epoll_postfork_child ();
452	#endif	629	#endif
453		630
454	evio_stop (&sigev);	631	ev_io_stop (&sigev);
455	close (sigpipe [0]);	632	close (sigpipe [0]);
456	close (sigpipe [1]);	633	close (sigpipe [1]);
457	pipe (sigpipe);	634	pipe (sigpipe);
458	siginit ();	635	siginit ();
459	}	636	}
460		637
461	/*****************************************************************************/	638	/*****************************************************************************/
462		639
463	static void	640	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)	641	call_pending (void)
491	{	642	{
		643	int pri;
		644
		645	for (pri = NUMPRI; pri--; )
492	while (pendingcnt)	646	while (pendingcnt [pri])
493	{	647	{
494	ANPENDING *p = pendings + --pendingcnt;	648	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
495		649
496	if (p->w)	650	if (p->w)
497	{	651	{
498	p->w->pending = 0;	652	p->w->pending = 0;
499	p->w->cb (p->w, p->events);	653	p->w->cb (p->w, p->events);
500	}	654	}
501	}	655	}
502	}	656	}
503		657
504	static void	658	static void
505	timers_reify (void)	659	timers_reify (void)
506	{	660	{
507	while (timercnt && timers [0]->at <= now)	661	while (timercnt && timers [0]->at <= now)
508	{	662	{
509	struct ev_timer *w = timers [0];	663	struct ev_timer *w = timers [0];
510
511	event ((W)w, EV_TIMEOUT);
512		664
513	/* first reschedule or stop timer */	665	/* first reschedule or stop timer */
514	if (w->repeat)	666	if (w->repeat)
515	{	667	{
		668	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
516	w->at = now + w->repeat;	669	w->at = now + w->repeat;
517	assert (("timer timeout in the past, negative repeat?", w->at > now));
518	downheap ((WT *)timers, timercnt, 0);	670	downheap ((WT *)timers, timercnt, 0);
519	}	671	}
520	else	672	else
521	evtimer_stop (w); /* nonrepeating: stop timer */	673	ev_timer_stop (w); /* nonrepeating: stop timer */
		674
		675	event ((W)w, EV_TIMEOUT);
522	}	676	}
523	}	677	}
524		678
525	static void	679	static void
526	periodics_reify (void)	680	periodics_reify (void)
…		…
531		685
532	/* first reschedule or stop timer */	686	/* first reschedule or stop timer */
533	if (w->interval)	687	if (w->interval)
534	{	688	{
535	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	689	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));	690	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));
537	downheap ((WT *)periodics, periodiccnt, 0);	691	downheap ((WT *)periodics, periodiccnt, 0);
538	}	692	}
539	else	693	else
540	evperiodic_stop (w); /* nonrepeating: stop timer */	694	ev_periodic_stop (w); /* nonrepeating: stop timer */
541		695
542	event ((W)w, EV_TIMEOUT);	696	event ((W)w, EV_PERIODIC);
543	}	697	}
544	}	698	}
545		699
546	static void	700	static void
547	periodics_reschedule (ev_tstamp diff)	701	periodics_reschedule (ev_tstamp diff)
…		…
557	{	711	{
558	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	712	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;
559		713
560	if (fabs (diff) >= 1e-4)	714	if (fabs (diff) >= 1e-4)
561	{	715	{
562	evperiodic_stop (w);	716	ev_periodic_stop (w);
563	evperiodic_start (w);	717	ev_periodic_start (w);
564		718
565	i = 0; /* restart loop, inefficient, but time jumps should be rare */	719	i = 0; /* restart loop, inefficient, but time jumps should be rare */
566	}	720	}
567	}	721	}
568	}	722	}
569	}	723	}
570		724
		725	static int
		726	time_update_monotonic (void)
		727	{
		728	now = get_clock ();
		729
		730	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))
		731	{
		732	ev_now = now + diff;
		733	return 0;
		734	}
		735	else
		736	{
		737	now_floor = now;
		738	ev_now = ev_time ();
		739	return 1;
		740	}
		741	}
		742
571	static void	743	static void
572	time_update (void)	744	time_update (void)
573	{	745	{
574	int i;	746	int i;
575		747
576	ev_now = ev_time ();	748	#if EV_USE_MONOTONIC
577
578	if (have_monotonic)	749	if (expect_true (have_monotonic))
579	{	750	{
580	ev_tstamp odiff = diff;	751	if (time_update_monotonic ())
581
582	for (i = 4; --i; ) /* loop a few times, before making important decisions */
583	{	752	{
584	now = get_clock ();	753	ev_tstamp odiff = diff;
		754
		755	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		756	{
585	diff = ev_now - now;	757	diff = ev_now - now;
586		758
587	if (fabs (odiff - diff) < MIN_TIMEJUMP)	759	if (fabs (odiff - diff) < MIN_TIMEJUMP)
588	return; /* all is well */	760	return; /* all is well */
589		761
590	ev_now = ev_time ();	762	ev_now = ev_time ();
		763	now = get_clock ();
		764	now_floor = now;
		765	}
		766
		767	periodics_reschedule (diff - odiff);
		768	/* no timer adjustment, as the monotonic clock doesn't jump */
591	}	769	}
592
593	periodics_reschedule (diff - odiff);
594	/* no timer adjustment, as the monotonic clock doesn't jump */
595	}	770	}
596	else	771	else
		772	#endif
597	{	773	{
		774	ev_now = ev_time ();
		775
598	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	776	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
599	{	777	{
600	periodics_reschedule (ev_now - now);	778	periodics_reschedule (ev_now - now);
601		779
602	/* adjust timers. this is easy, as the offset is the same for all */	780	/* adjust timers. this is easy, as the offset is the same for all */
603	for (i = 0; i < timercnt; ++i)	781	for (i = 0; i < timercnt; ++i)
…		…
616	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	794	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
617		795
618	do	796	do
619	{	797	{
620	/* queue check watchers (and execute them) */	798	/* queue check watchers (and execute them) */
621	if (preparecnt)	799	if (expect_false (preparecnt))
622	{	800	{
623	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	801	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
624	call_pending ();	802	call_pending ();
625	}	803	}
626		804
…		…
629		807
630	/* calculate blocking time */	808	/* calculate blocking time */
631		809
632	/* we only need this for !monotonic clockor timers, but as we basically	810	/* we only need this for !monotonic clockor timers, but as we basically
633	always have timers, we just calculate it always */	811	always have timers, we just calculate it always */
		812	#if EV_USE_MONOTONIC
		813	if (expect_true (have_monotonic))
		814	time_update_monotonic ();
		815	else
		816	#endif
		817	{
634	ev_now = ev_time ();	818	ev_now = ev_time ();
		819	now = ev_now;
		820	}
635		821
636	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	822	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
637	block = 0.;	823	block = 0.;
638	else	824	else
639	{	825	{
640	block = MAX_BLOCKTIME;	826	block = MAX_BLOCKTIME;
641		827
642	if (timercnt)	828	if (timercnt)
643	{	829	{
644	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	830	ev_tstamp to = timers [0]->at - now + method_fudge;
645	if (block > to) block = to;	831	if (block > to) block = to;
646	}	832	}
647		833
648	if (periodiccnt)	834	if (periodiccnt)
649	{	835	{
…		…
702	head = &(*head)->next;	888	head = &(*head)->next;
703	}	889	}
704	}	890	}
705		891
706	static void	892	static void
707	ev_clear (W w)	893	ev_clear_pending (W w)
708	{	894	{
709	if (w->pending)	895	if (w->pending)
710	{	896	{
711	pendings [w->pending - 1].w = 0;	897	pendings [ABSPRI (w)][w->pending - 1].w = 0;
712	w->pending = 0;	898	w->pending = 0;
713	}	899	}
714	}	900	}
715		901
716	static void	902	static void
717	ev_start (W w, int active)	903	ev_start (W w, int active)
718	{	904	{
		905	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		906	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		907
719	w->active = active;	908	w->active = active;
720	}	909	}
721		910
722	static void	911	static void
723	ev_stop (W w)	912	ev_stop (W w)
…		…
726	}	915	}
727		916
728	/*****************************************************************************/	917	/*****************************************************************************/
729		918
730	void	919	void
731	evio_start (struct ev_io *w)	920	ev_io_start (struct ev_io *w)
732	{	921	{
		922	int fd = w->fd;
		923
733	if (ev_is_active (w))	924	if (ev_is_active (w))
734	return;	925	return;
735		926
736	int fd = w->fd;	927	assert (("ev_io_start called with negative fd", fd >= 0));
737		928
738	ev_start ((W)w, 1);	929	ev_start ((W)w, 1);
739	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	930	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
740	wlist_add ((WL *)&anfds[fd].head, (WL)w);	931	wlist_add ((WL *)&anfds[fd].head, (WL)w);
741		932
742	++fdchangecnt;	933	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	}	934	}
749		935
750	void	936	void
751	evio_stop (struct ev_io *w)	937	ev_io_stop (struct ev_io *w)
752	{	938	{
753	if (w->fd == 9)
754	printf ("stop %p:%x\n", w, w->events);//D
755	ev_clear ((W)w);	939	ev_clear_pending ((W)w);
756	if (!ev_is_active (w))	940	if (!ev_is_active (w))
757	return;	941	return;
758		942
759	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	943	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
760	ev_stop ((W)w);	944	ev_stop ((W)w);
761		945
762	++fdchangecnt;	946	fd_change (w->fd);
763	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
764	fdchanges [fdchangecnt - 1] = w->fd;
765	}	947	}
766		948
767	void	949	void
768	evtimer_start (struct ev_timer *w)	950	ev_timer_start (struct ev_timer *w)
769	{	951	{
770	if (ev_is_active (w))	952	if (ev_is_active (w))
771	return;	953	return;
772		954
773	w->at += now;	955	w->at += now;
774		956
775	assert (("timer repeat value less than zero not allowed", w->repeat >= 0.));	957	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
776		958
777	ev_start ((W)w, ++timercnt);	959	ev_start ((W)w, ++timercnt);
778	array_needsize (timers, timermax, timercnt, );	960	array_needsize (timers, timermax, timercnt, );
779	timers [timercnt - 1] = w;	961	timers [timercnt - 1] = w;
780	upheap ((WT *)timers, timercnt - 1);	962	upheap ((WT *)timers, timercnt - 1);
781	}	963	}
782		964
783	void	965	void
784	evtimer_stop (struct ev_timer *w)	966	ev_timer_stop (struct ev_timer *w)
785	{	967	{
786	ev_clear ((W)w);	968	ev_clear_pending ((W)w);
787	if (!ev_is_active (w))	969	if (!ev_is_active (w))
788	return;	970	return;
789		971
790	if (w->active < timercnt--)	972	if (w->active < timercnt--)
791	{	973	{
…		…
797		979
798	ev_stop ((W)w);	980	ev_stop ((W)w);
799	}	981	}
800		982
801	void	983	void
802	evtimer_again (struct ev_timer *w)	984	ev_timer_again (struct ev_timer *w)
803	{	985	{
804	if (ev_is_active (w))	986	if (ev_is_active (w))
805	{	987	{
806	if (w->repeat)	988	if (w->repeat)
807	{	989	{
808	w->at = now + w->repeat;	990	w->at = now + w->repeat;
809	downheap ((WT *)timers, timercnt, w->active - 1);	991	downheap ((WT *)timers, timercnt, w->active - 1);
810	}	992	}
811	else	993	else
812	evtimer_stop (w);	994	ev_timer_stop (w);
813	}	995	}
814	else if (w->repeat)	996	else if (w->repeat)
815	evtimer_start (w);	997	ev_timer_start (w);
816	}	998	}
817		999
818	void	1000	void
819	evperiodic_start (struct ev_periodic *w)	1001	ev_periodic_start (struct ev_periodic *w)
820	{	1002	{
821	if (ev_is_active (w))	1003	if (ev_is_active (w))
822	return;	1004	return;
823		1005
824	assert (("periodic interval value less than zero not allowed", w->interval >= 0.));	1006	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
825		1007
826	/* this formula differs from the one in periodic_reify because we do not always round up */	1008	/* this formula differs from the one in periodic_reify because we do not always round up */
827	if (w->interval)	1009	if (w->interval)
828	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1010	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
829		1011
…		…
832	periodics [periodiccnt - 1] = w;	1014	periodics [periodiccnt - 1] = w;
833	upheap ((WT *)periodics, periodiccnt - 1);	1015	upheap ((WT *)periodics, periodiccnt - 1);
834	}	1016	}
835		1017
836	void	1018	void
837	evperiodic_stop (struct ev_periodic *w)	1019	ev_periodic_stop (struct ev_periodic *w)
838	{	1020	{
839	ev_clear ((W)w);	1021	ev_clear_pending ((W)w);
840	if (!ev_is_active (w))	1022	if (!ev_is_active (w))
841	return;	1023	return;
842		1024
843	if (w->active < periodiccnt--)	1025	if (w->active < periodiccnt--)
844	{	1026	{
…		…
847	}	1029	}
848		1030
849	ev_stop ((W)w);	1031	ev_stop ((W)w);
850	}	1032	}
851		1033
		1034	#ifndef SA_RESTART
		1035	# define SA_RESTART 0
		1036	#endif
		1037
852	void	1038	void
853	evsignal_start (struct ev_signal *w)	1039	ev_signal_start (struct ev_signal *w)
854	{	1040	{
855	if (ev_is_active (w))	1041	if (ev_is_active (w))
856	return;	1042	return;
		1043
		1044	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
857		1045
858	ev_start ((W)w, 1);	1046	ev_start ((W)w, 1);
859	array_needsize (signals, signalmax, w->signum, signals_init);	1047	array_needsize (signals, signalmax, w->signum, signals_init);
860	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1048	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
861		1049
862	if (!w->next)	1050	if (!w->next)
863	{	1051	{
864	struct sigaction sa;	1052	struct sigaction sa;
865	sa.sa_handler = sighandler;	1053	sa.sa_handler = sighandler;
866	sigfillset (&sa.sa_mask);	1054	sigfillset (&sa.sa_mask);
867	sa.sa_flags = 0;	1055	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
868	sigaction (w->signum, &sa, 0);	1056	sigaction (w->signum, &sa, 0);
869	}	1057	}
870	}	1058	}
871		1059
872	void	1060	void
873	evsignal_stop (struct ev_signal *w)	1061	ev_signal_stop (struct ev_signal *w)
874	{	1062	{
875	ev_clear ((W)w);	1063	ev_clear_pending ((W)w);
876	if (!ev_is_active (w))	1064	if (!ev_is_active (w))
877	return;	1065	return;
878		1066
879	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1067	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
880	ev_stop ((W)w);	1068	ev_stop ((W)w);
881		1069
882	if (!signals [w->signum - 1].head)	1070	if (!signals [w->signum - 1].head)
883	signal (w->signum, SIG_DFL);	1071	signal (w->signum, SIG_DFL);
884	}	1072	}
885		1073
		1074	void
886	void evidle_start (struct ev_idle *w)	1075	ev_idle_start (struct ev_idle *w)
887	{	1076	{
888	if (ev_is_active (w))	1077	if (ev_is_active (w))
889	return;	1078	return;
890		1079
891	ev_start ((W)w, ++idlecnt);	1080	ev_start ((W)w, ++idlecnt);
892	array_needsize (idles, idlemax, idlecnt, );	1081	array_needsize (idles, idlemax, idlecnt, );
893	idles [idlecnt - 1] = w;	1082	idles [idlecnt - 1] = w;
894	}	1083	}
895		1084
		1085	void
896	void evidle_stop (struct ev_idle *w)	1086	ev_idle_stop (struct ev_idle *w)
897	{	1087	{
898	ev_clear ((W)w);	1088	ev_clear_pending ((W)w);
899	if (ev_is_active (w))	1089	if (ev_is_active (w))
900	return;	1090	return;
901		1091
902	idles [w->active - 1] = idles [--idlecnt];	1092	idles [w->active - 1] = idles [--idlecnt];
903	ev_stop ((W)w);	1093	ev_stop ((W)w);
904	}	1094	}
905		1095
		1096	void
906	void evprepare_start (struct ev_prepare *w)	1097	ev_prepare_start (struct ev_prepare *w)
907	{	1098	{
908	if (ev_is_active (w))	1099	if (ev_is_active (w))
909	return;	1100	return;
910		1101
911	ev_start ((W)w, ++preparecnt);	1102	ev_start ((W)w, ++preparecnt);
912	array_needsize (prepares, preparemax, preparecnt, );	1103	array_needsize (prepares, preparemax, preparecnt, );
913	prepares [preparecnt - 1] = w;	1104	prepares [preparecnt - 1] = w;
914	}	1105	}
915		1106
		1107	void
916	void evprepare_stop (struct ev_prepare *w)	1108	ev_prepare_stop (struct ev_prepare *w)
917	{	1109	{
918	ev_clear ((W)w);	1110	ev_clear_pending ((W)w);
919	if (ev_is_active (w))	1111	if (ev_is_active (w))
920	return;	1112	return;
921		1113
922	prepares [w->active - 1] = prepares [--preparecnt];	1114	prepares [w->active - 1] = prepares [--preparecnt];
923	ev_stop ((W)w);	1115	ev_stop ((W)w);
924	}	1116	}
925		1117
		1118	void
926	void evcheck_start (struct ev_check *w)	1119	ev_check_start (struct ev_check *w)
927	{	1120	{
928	if (ev_is_active (w))	1121	if (ev_is_active (w))
929	return;	1122	return;
930		1123
931	ev_start ((W)w, ++checkcnt);	1124	ev_start ((W)w, ++checkcnt);
932	array_needsize (checks, checkmax, checkcnt, );	1125	array_needsize (checks, checkmax, checkcnt, );
933	checks [checkcnt - 1] = w;	1126	checks [checkcnt - 1] = w;
934	}	1127	}
935		1128
		1129	void
936	void evcheck_stop (struct ev_check *w)	1130	ev_check_stop (struct ev_check *w)
937	{	1131	{
938	ev_clear ((W)w);	1132	ev_clear_pending ((W)w);
939	if (ev_is_active (w))	1133	if (ev_is_active (w))
940	return;	1134	return;
941		1135
942	checks [w->active - 1] = checks [--checkcnt];	1136	checks [w->active - 1] = checks [--checkcnt];
943	ev_stop ((W)w);	1137	ev_stop ((W)w);
944	}	1138	}
945		1139
		1140	void
946	void evchild_start (struct ev_child *w)	1141	ev_child_start (struct ev_child *w)
947	{	1142	{
948	if (ev_is_active (w))	1143	if (ev_is_active (w))
949	return;	1144	return;
950		1145
951	ev_start ((W)w, 1);	1146	ev_start ((W)w, 1);
952	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1147	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
953	}	1148	}
954		1149
		1150	void
955	void evchild_stop (struct ev_child *w)	1151	ev_child_stop (struct ev_child *w)
956	{	1152	{
957	ev_clear ((W)w);	1153	ev_clear_pending ((W)w);
958	if (ev_is_active (w))	1154	if (ev_is_active (w))
959	return;	1155	return;
960		1156
961	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1157	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
962	ev_stop ((W)w);	1158	ev_stop ((W)w);
…		…
976	once_cb (struct ev_once *once, int revents)	1172	once_cb (struct ev_once *once, int revents)
977	{	1173	{
978	void (cb)(int revents, void arg) = once->cb;	1174	void (cb)(int revents, void arg) = once->cb;
979	void *arg = once->arg;	1175	void *arg = once->arg;
980		1176
981	evio_stop (&once->io);	1177	ev_io_stop (&once->io);
982	evtimer_stop (&once->to);	1178	ev_timer_stop (&once->to);
983	free (once);	1179	free (once);
984		1180
985	cb (revents, arg);	1181	cb (revents, arg);
986	}	1182	}
987		1183
…		…
1001	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1197	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1002	{	1198	{
1003	struct ev_once *once = malloc (sizeof (struct ev_once));	1199	struct ev_once *once = malloc (sizeof (struct ev_once));
1004		1200
1005	if (!once)	1201	if (!once)
1006	cb (EV_ERROR, arg);	1202	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1007	else	1203	else
1008	{	1204	{
1009	once->cb = cb;	1205	once->cb = cb;
1010	once->arg = arg;	1206	once->arg = arg;
1011		1207
1012	evw_init (&once->io, once_cb_io);	1208	ev_watcher_init (&once->io, once_cb_io);
1013
1014	if (fd >= 0)	1209	if (fd >= 0)
1015	{	1210	{
1016	evio_set (&once->io, fd, events);	1211	ev_io_set (&once->io, fd, events);
1017	evio_start (&once->io);	1212	ev_io_start (&once->io);
1018	}	1213	}
1019		1214
1020	evw_init (&once->to, once_cb_to);	1215	ev_watcher_init (&once->to, once_cb_to);
1021
1022	if (timeout >= 0.)	1216	if (timeout >= 0.)
1023	{	1217	{
1024	evtimer_set (&once->to, timeout, 0.);	1218	ev_timer_set (&once->to, timeout, 0.);
1025	evtimer_start (&once->to);	1219	ev_timer_start (&once->to);
1026	}	1220	}
1027	}	1221	}
1028	}	1222	}
1029		1223
1030	/*****************************************************************************/	1224	/*****************************************************************************/
…		…
1041		1235
1042	static void	1236	static void
1043	ocb (struct ev_timer *w, int revents)	1237	ocb (struct ev_timer *w, int revents)
1044	{	1238	{
1045	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);	1239	//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);	1240	ev_timer_stop (w);
1047	evtimer_start (w);	1241	ev_timer_start (w);
1048	}	1242	}
1049		1243
1050	static void	1244	static void
1051	scb (struct ev_signal *w, int revents)	1245	scb (struct ev_signal *w, int revents)
1052	{	1246	{
1053	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1247	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1054	evio_stop (&wio);	1248	ev_io_stop (&wio);
1055	evio_start (&wio);	1249	ev_io_start (&wio);
1056	}	1250	}
1057		1251
1058	static void	1252	static void
1059	gcb (struct ev_signal *w, int revents)	1253	gcb (struct ev_signal *w, int revents)
1060	{	1254	{
…		…
1064		1258
1065	int main (void)	1259	int main (void)
1066	{	1260	{
1067	ev_init (0);	1261	ev_init (0);
1068		1262
1069	evio_init (&wio, sin_cb, 0, EV_READ);	1263	ev_io_init (&wio, sin_cb, 0, EV_READ);
1070	evio_start (&wio);	1264	ev_io_start (&wio);
1071		1265
1072	struct ev_timer t[10000];	1266	struct ev_timer t[10000];
1073		1267
1074	#if 0	1268	#if 0
1075	int i;	1269	int i;
1076	for (i = 0; i < 10000; ++i)	1270	for (i = 0; i < 10000; ++i)
1077	{	1271	{
1078	struct ev_timer *w = t + i;	1272	struct ev_timer *w = t + i;
1079	evw_init (w, ocb, i);	1273	ev_watcher_init (w, ocb, i);
1080	evtimer_init_abs (w, ocb, drand48 (), 0.99775533);	1274	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1081	evtimer_start (w);	1275	ev_timer_start (w);
1082	if (drand48 () < 0.5)	1276	if (drand48 () < 0.5)
1083	evtimer_stop (w);	1277	ev_timer_stop (w);
1084	}	1278	}
1085	#endif	1279	#endif
1086		1280
1087	struct ev_timer t1;	1281	struct ev_timer t1;
1088	evtimer_init (&t1, ocb, 5, 10);	1282	ev_timer_init (&t1, ocb, 5, 10);
1089	evtimer_start (&t1);	1283	ev_timer_start (&t1);
1090		1284
1091	struct ev_signal sig;	1285	struct ev_signal sig;
1092	evsignal_init (&sig, scb, SIGQUIT);	1286	ev_signal_init (&sig, scb, SIGQUIT);
1093	evsignal_start (&sig);	1287	ev_signal_start (&sig);
1094		1288
1095	struct ev_check cw;	1289	struct ev_check cw;
1096	evcheck_init (&cw, gcb);	1290	ev_check_init (&cw, gcb);
1097	evcheck_start (&cw);	1291	ev_check_start (&cw);
1098		1292
1099	struct ev_idle iw;	1293	struct ev_idle iw;
1100	evidle_init (&iw, gcb);	1294	ev_idle_init (&iw, gcb);
1101	evidle_start (&iw);	1295	ev_idle_start (&iw);
1102		1296
1103	ev_loop (0);	1297	ev_loop (0);
1104		1298
1105	return 0;	1299	return 0;
1106	}	1300	}

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Comparing libev/ev.c (file contents): Revision 1.26 by root, Wed Oct 31 21:50:15 2007 UTC vs. Revision 1.50 by root, Sat Nov 3 19:41:55 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.26 by root, Wed Oct 31 21:50:15 2007 UTC vs.
Revision 1.50 by root, Sat Nov 3 19:41:55 2007 UTC