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

Comparing libev/ev.c (file contents):
Revision 1.16 by root, Wed Oct 31 13:57:34 2007 UTC vs.
Revision 1.50 by root, Sat Nov 3 19:41:55 2007 UTC

…		…
		1	/*
		2	* libev event processing core, watcher management
		3	*
		4	* Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de>
		5	* All rights reserved.
		6	*
		7	* Redistribution and use in source and binary forms, with or without
		8	* modification, are permitted provided that the following conditions are
		9	* met:
		10	*
		11	* * Redistributions of source code must retain the above copyright
		12	* notice, this list of conditions and the following disclaimer.
		13	*
		14	* * Redistributions in binary form must reproduce the above
		15	* copyright notice, this list of conditions and the following
		16	* disclaimer in the documentation and/or other materials provided
		17	* with the distribution.
		18	*
		19	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		20	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		21	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		22	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		23	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		24	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		25	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		30	*/
		31	#ifndef EV_STANDALONE
		32	# include "config.h"
		33	#endif
		34
1	#include <math.h>	35	#include <math.h>
2	#include <stdlib.h>	36	#include <stdlib.h>
3	#include <unistd.h>	37	#include <unistd.h>
4	#include <fcntl.h>	38	#include <fcntl.h>
5	#include <signal.h>	39	#include <signal.h>
7		41
8	#include <stdio.h>	42	#include <stdio.h>
9		43
10	#include <assert.h>	44	#include <assert.h>
11	#include <errno.h>	45	#include <errno.h>
		46	#include <sys/types.h>
		47	#ifndef WIN32
		48	# include <sys/wait.h>
		49	#endif
12	#include <sys/time.h>	50	#include <sys/time.h>
13	#include <time.h>	51	#include <time.h>
14		52
15	#define HAVE_EPOLL 1	53	/**/
16		54
17	#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
18	# ifdef CLOCK_MONOTONIC	81	#ifndef CLOCK_MONOTONIC
		82	# undef EV_USE_MONOTONIC
19	# define HAVE_MONOTONIC 1	83	# define EV_USE_MONOTONIC 0
20	# endif	84	#endif
21	#endif
22		85
23	#ifndef HAVE_SELECT
24	# define HAVE_SELECT 1
25	#endif
26
27	#ifndef HAVE_EPOLL
28	# define HAVE_EPOLL 0
29	#endif
30
31	#ifndef HAVE_REALTIME	86	#ifndef CLOCK_REALTIME
32	# define HAVE_REALTIME 1 /* posix requirement, but might be slower */	87	# undef EV_USE_REALTIME
		88	# define EV_USE_REALTIME 0
33	#endif	89	#endif
		90
		91	/**/
34		92
35	#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) */
36	#define MAX_BLOCKTIME 60.	94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
		95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
		96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
37		97
38	#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)
39		113
40	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
41	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
42	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
43		117
44	static ev_tstamp now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, now, diff; /* monotonic clock */
45	ev_tstamp ev_now;	119	ev_tstamp ev_now;
46	int ev_method;	120	int ev_method;
47		121
48	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
49		123
…		…
54	/*****************************************************************************/	128	/*****************************************************************************/
55		129
56	ev_tstamp	130	ev_tstamp
57	ev_time (void)	131	ev_time (void)
58	{	132	{
59	#if HAVE_REALTIME	133	#if EV_USE_REALTIME
60	struct timespec ts;	134	struct timespec ts;
61	clock_gettime (CLOCK_REALTIME, &ts);	135	clock_gettime (CLOCK_REALTIME, &ts);
62	return ts.tv_sec + ts.tv_nsec * 1e-9;	136	return ts.tv_sec + ts.tv_nsec * 1e-9;
63	#else	137	#else
64	struct timeval tv;	138	struct timeval tv;
…		…
68	}	142	}
69		143
70	static ev_tstamp	144	static ev_tstamp
71	get_clock (void)	145	get_clock (void)
72	{	146	{
73	#if HAVE_MONOTONIC	147	#if EV_USE_MONOTONIC
74	if (have_monotonic)	148	if (expect_true (have_monotonic))
75	{	149	{
76	struct timespec ts;	150	struct timespec ts;
77	clock_gettime (CLOCK_MONOTONIC, &ts);	151	clock_gettime (CLOCK_MONOTONIC, &ts);
78	return ts.tv_sec + ts.tv_nsec * 1e-9;	152	return ts.tv_sec + ts.tv_nsec * 1e-9;
79	}	153	}
80	#endif	154	#endif
81		155
82	return ev_time ();	156	return ev_time ();
83	}	157	}
84		158
		159	#define array_roundsize(base,n) ((n) \| 4 & ~3)
		160
85	#define array_needsize(base,cur,cnt,init) \	161	#define array_needsize(base,cur,cnt,init) \
86	if ((cnt) > cur) \	162	if (expect_false ((cnt) > cur)) \
87	{ \	163	{ \
88	int newcnt = cur ? cur << 1 : 16; \	164	int newcnt = cur; \
		165	do \
		166	{ \
		167	newcnt = array_roundsize (base, newcnt << 1); \
		168	} \
		169	while ((cnt) > newcnt); \
		170	\
89	base = realloc (base, sizeof (base) (newcnt)); \	171	base = realloc (base, sizeof (base) (newcnt)); \
90	init (base + cur, newcnt - cur); \	172	init (base + cur, newcnt - cur); \
91	cur = newcnt; \	173	cur = newcnt; \
92	}	174	}
93		175
94	/*****************************************************************************/	176	/*****************************************************************************/
95		177
96	typedef struct	178	typedef struct
97	{	179	{
98	struct ev_io *head;	180	struct ev_watcher_list *head;
99	unsigned char wev, rev; /* want, received event set */	181	unsigned char events;
		182	unsigned char reify;
100	} ANFD;	183	} ANFD;
101		184
102	static ANFD *anfds;	185	static ANFD *anfds;
103	static int anfdmax;	186	static int anfdmax;
104		187
105	static int *fdchanges;
106	static int fdchangemax, fdchangecnt;
107
108	static void	188	static void
109	anfds_init (ANFD *base, int count)	189	anfds_init (ANFD *base, int count)
110	{	190	{
111	while (count--)	191	while (count--)
112	{	192	{
113	base->head = 0;	193	base->head = 0;
114	base->wev = base->rev = EV_NONE;	194	base->events = EV_NONE;
		195	base->reify = 0;
		196
115	++base;	197	++base;
116	}	198	}
117	}	199	}
118		200
119	typedef struct	201	typedef struct
120	{	202	{
121	W w;	203	W w;
122	int events;	204	int events;
123	} ANPENDING;	205	} ANPENDING;
124		206
125	static ANPENDING *pendings;	207	static ANPENDING *pendings [NUMPRI];
126	static int pendingmax, pendingcnt;	208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
127		209
128	static void	210	static void
129	event (W w, int events)	211	event (W w, int events)
130	{	212	{
131	if (w->active)	213	if (w->pending)
132	{	214	{
133	w->pending = ++pendingcnt;
134	array_needsize (pendings, pendingmax, pendingcnt, );
135	pendings [pendingcnt - 1].w = w;
136	pendings [pendingcnt - 1].events = events;	215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
		216	return;
137	}	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);
138	}	232	}
139		233
140	static void	234	static void
141	fd_event (int fd, int events)	235	fd_event (int fd, int events)
142	{	236	{
143	ANFD *anfd = anfds + fd;	237	ANFD *anfd = anfds + fd;
144	struct ev_io *w;	238	struct ev_io *w;
145		239
146	for (w = anfd->head; w; w = w->next)	240	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
147	{	241	{
148	int ev = w->events & events;	242	int ev = w->events & events;
149		243
150	if (ev)	244	if (ev)
151	event ((W)w, ev);	245	event ((W)w, ev);
152	}	246	}
153	}	247	}
154		248
		249	/*****************************************************************************/
		250
		251	static int *fdchanges;
		252	static int fdchangemax, fdchangecnt;
		253
155	static void	254	static void
156	queue_events (W *events, int eventcnt, int type)	255	fd_reify (void)
157	{	256	{
158	int i;	257	int i;
159		258
160	for (i = 0; i < eventcnt; ++i)	259	for (i = 0; i < fdchangecnt; ++i)
161	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	}
		305	}
		306
		307	/* called on EBADF to verify fds */
		308	static void
		309	fd_ebadf (void)
		310	{
		311	int fd;
		312
		313	for (fd = 0; fd < anfdmax; ++fd)
		314	if (anfds [fd].events)
		315	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
		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)
		327	{
		328	close (fd);
		329	fd_kill (fd);
		330	return;
		331	}
162	}	332	}
163		333
164	/*****************************************************************************/	334	/*****************************************************************************/
165		335
166	static struct ev_timer **timers;	336	static struct ev_timer **timers;
…		…
212		382
213	/*****************************************************************************/	383	/*****************************************************************************/
214		384
215	typedef struct	385	typedef struct
216	{	386	{
217	struct ev_signal *head;	387	struct ev_watcher_list *head;
218	sig_atomic_t gotsig;	388	sig_atomic_t volatile gotsig;
219	} ANSIG;	389	} ANSIG;
220		390
221	static ANSIG *signals;	391	static ANSIG *signals;
222	static int signalmax;	392	static int signalmax;
223		393
224	static int sigpipe [2];	394	static int sigpipe [2];
225	static sig_atomic_t gotsig;	395	static sig_atomic_t volatile gotsig;
226	static struct ev_io sigev;	396	static struct ev_io sigev;
227		397
228	static void	398	static void
229	signals_init (ANSIG *base, int count)	399	signals_init (ANSIG *base, int count)
230	{	400	{
231	while (count--)	401	while (count--)
232	{	402	{
233	base->head = 0;	403	base->head = 0;
234	base->gotsig = 0;	404	base->gotsig = 0;
		405
235	++base;	406	++base;
236	}	407	}
237	}	408	}
238		409
239	static void	410	static void
…		…
241	{	412	{
242	signals [signum - 1].gotsig = 1;	413	signals [signum - 1].gotsig = 1;
243		414
244	if (!gotsig)	415	if (!gotsig)
245	{	416	{
		417	int old_errno = errno;
246	gotsig = 1;	418	gotsig = 1;
247	write (sigpipe [1], &gotsig, 1);	419	write (sigpipe [1], &signum, 1);
		420	errno = old_errno;
248	}	421	}
249	}	422	}
250		423
251	static void	424	static void
252	sigcb (struct ev_io *iow, int revents)	425	sigcb (struct ev_io *iow, int revents)
253	{	426	{
254	struct ev_signal *w;	427	struct ev_watcher_list *w;
255	int sig;	428	int signum;
256		429
		430	read (sigpipe [0], &revents, 1);
257	gotsig = 0;	431	gotsig = 0;
258	read (sigpipe [0], &revents, 1);
259		432
260	for (sig = signalmax; sig--; )	433	for (signum = signalmax; signum--; )
261	if (signals [sig].gotsig)	434	if (signals [signum].gotsig)
262	{	435	{
263	signals [sig].gotsig = 0;	436	signals [signum].gotsig = 0;
264		437
265	for (w = signals [sig].head; w; w = w->next)	438	for (w = signals [signum].head; w; w = w->next)
266	event ((W)w, EV_SIGNAL);	439	event ((W)w, EV_SIGNAL);
267	}	440	}
268	}	441	}
269		442
270	static void	443	static void
271	siginit (void)	444	siginit (void)
272	{	445	{
		446	#ifndef WIN32
273	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	447	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
274	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	448	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
275		449
276	/* rather than sort out wether we really need nb, set it */	450	/* rather than sort out wether we really need nb, set it */
277	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	451	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
278	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	452	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		453	#endif
279		454
280	evio_set (&sigev, sigpipe [0], EV_READ);	455	ev_io_set (&sigev, sigpipe [0], EV_READ);
281	evio_start (&sigev);	456	ev_io_start (&sigev);
282	}	457	}
283		458
284	/*****************************************************************************/	459	/*****************************************************************************/
285		460
286	static struct ev_idle **idles;	461	static struct ev_idle **idles;
287	static int idlemax, idlecnt;	462	static int idlemax, idlecnt;
288		463
		464	static struct ev_prepare **prepares;
		465	static int preparemax, preparecnt;
		466
289	static struct ev_check **checks;	467	static struct ev_check **checks;
290	static int checkmax, checkcnt;	468	static int checkmax, checkcnt;
291		469
292	/*****************************************************************************/	470	/*****************************************************************************/
293		471
		472	static struct ev_child *childs [PID_HASHSIZE];
		473	static struct ev_signal childev;
		474
		475	#ifndef WIN32
		476
		477	#ifndef WCONTINUED
		478	# define WCONTINUED 0
		479	#endif
		480
		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
		497	childcb (struct ev_signal *sw, int revents)
		498	{
		499	int pid, status;
		500
		501	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
		502	{
		503	/* make sure we are called again until all childs have been reaped */
		504	event ((W)sw, EV_SIGNAL);
		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	}
		509	}
		510
		511	#endif
		512
		513	/*****************************************************************************/
		514
		515	#if EV_USE_KQUEUE
		516	# include "ev_kqueue.c"
		517	#endif
294	#if HAVE_EPOLL	518	#if EV_USE_EPOLL
295	# include "ev_epoll.c"	519	# include "ev_epoll.c"
296	#endif	520	#endif
		521	#if EV_USE_POLL
		522	# include "ev_poll.c"
		523	#endif
297	#if HAVE_SELECT	524	#if EV_USE_SELECT
298	# include "ev_select.c"	525	# include "ev_select.c"
299	#endif	526	#endif
300		527
301	int ev_init (int flags)	528	int
		529	ev_version_major (void)
302	{	530	{
303	#if HAVE_MONOTONIC	531	return EV_VERSION_MAJOR;
304	{	532	}
305	struct timespec ts;
306	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
307	have_monotonic = 1;
308	}
309	#endif
310		533
311	ev_now = ev_time ();	534	int
312	now = get_clock ();	535	ev_version_minor (void)
313	diff = ev_now - now;	536	{
		537	return EV_VERSION_MINOR;
		538	}
314		539
315	if (pipe (sigpipe))	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
316	return 0;	545	return 0;
317		546	#else
318	ev_method = EVMETHOD_NONE;	547	return getuid () != geteuid ()
319	#if HAVE_EPOLL	548	\|\| getgid () != getegid ();
320	if (ev_method == EVMETHOD_NONE) epoll_init (flags);
321	#endif	549	#endif
322	#if HAVE_SELECT	550	}
323	if (ev_method == EVMETHOD_NONE) select_init (flags);
324	#endif
325		551
		552	int ev_init (int methods)
		553	{
326	if (ev_method)	554	if (!ev_method)
		555	{
		556	#if EV_USE_MONOTONIC
327	{	557	{
		558	struct timespec ts;
		559	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
		560	have_monotonic = 1;
		561	}
		562	#endif
		563
		564	ev_now = ev_time ();
		565	now = get_clock ();
		566	now_floor = now;
		567	diff = ev_now - now;
		568
		569	if (pipe (sigpipe))
		570	return 0;
		571
		572	if (methods == EVMETHOD_AUTO)
		573	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		574	methods = atoi (getenv ("LIBEV_METHODS"));
		575	else
		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
		582	#if EV_USE_EPOLL
		583	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
		584	#endif
		585	#if EV_USE_POLL
		586	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
		587	#endif
		588	#if EV_USE_SELECT
		589	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
		590	#endif
		591
		592	if (ev_method)
		593	{
328	evw_init (&sigev, sigcb);	594	ev_watcher_init (&sigev, sigcb);
		595	ev_set_priority (&sigev, EV_MAXPRI);
329	siginit ();	596	siginit ();
		597
		598	#ifndef WIN32
		599	ev_signal_init (&childev, childcb, SIGCHLD);
		600	ev_set_priority (&childev, EV_MAXPRI);
		601	ev_signal_start (&childev);
		602	#endif
		603	}
330	}	604	}
331		605
332	return ev_method;	606	return ev_method;
333	}	607	}
334		608
335	/*****************************************************************************/	609	/*****************************************************************************/
336		610
337	void ev_prefork (void)	611	void
		612	ev_fork_prepare (void)
338	{	613	{
339	/* nop */	614	/* nop */
340	}	615	}
341		616
		617	void
342	void ev_postfork_parent (void)	618	ev_fork_parent (void)
343	{	619	{
344	/* nop */	620	/* nop */
345	}	621	}
346		622
		623	void
347	void ev_postfork_child (void)	624	ev_fork_child (void)
348	{	625	{
349	#if HAVE_EPOLL	626	#if EV_USE_EPOLL
350	if (ev_method == EVMETHOD_EPOLL)	627	if (ev_method == EVMETHOD_EPOLL)
351	epoll_postfork_child ();	628	epoll_postfork_child ();
352	#endif	629	#endif
353		630
354	evio_stop (&sigev);	631	ev_io_stop (&sigev);
355	close (sigpipe [0]);	632	close (sigpipe [0]);
356	close (sigpipe [1]);	633	close (sigpipe [1]);
357	pipe (sigpipe);	634	pipe (sigpipe);
358	siginit ();	635	siginit ();
359	}	636	}
360		637
361	/*****************************************************************************/	638	/*****************************************************************************/
362		639
363	static void	640	static void
364	fd_reify (void)	641	call_pending (void)
365	{	642	{
366	int i;	643	int pri;
367		644
368	for (i = 0; i < fdchangecnt; ++i)	645	for (pri = NUMPRI; pri--; )
369	{	646	while (pendingcnt [pri])
370	int fd = fdchanges [i];
371	ANFD *anfd = anfds + fd;
372	struct ev_io *w;
373
374	int wev = 0;
375
376	for (w = anfd->head; w; w = w->next)
377	wev \|= w->events;
378
379	if (anfd->wev != wev)
380	{	647	{
381	method_modify (fd, anfd->wev, wev);	648	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
382	anfd->wev = wev;
383	}
384	}
385		649
386	fdchangecnt = 0;
387	}
388
389	static void
390	call_pending ()
391	{
392	int i;
393
394	for (i = 0; i < pendingcnt; ++i)
395	{
396	ANPENDING *p = pendings + i;
397
398	if (p->w)	650	if (p->w)
399	{	651	{
400	p->w->pending = 0;	652	p->w->pending = 0;
401	p->w->cb (p->w, p->events);	653	p->w->cb (p->w, p->events);
402	}	654	}
403	}	655	}
404
405	pendingcnt = 0;
406	}	656	}
407		657
408	static void	658	static void
409	timers_reify ()	659	timers_reify (void)
410	{	660	{
411	while (timercnt && timers [0]->at <= now)	661	while (timercnt && timers [0]->at <= now)
412	{	662	{
413	struct ev_timer *w = timers [0];	663	struct ev_timer *w = timers [0];
414
415	event ((W)w, EV_TIMEOUT);
416		664
417	/* first reschedule or stop timer */	665	/* first reschedule or stop timer */
418	if (w->repeat)	666	if (w->repeat)
419	{	667	{
		668	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
420	w->at = now + w->repeat;	669	w->at = now + w->repeat;
421	assert (("timer timeout in the past, negative repeat?", w->at > now));
422	downheap ((WT *)timers, timercnt, 0);	670	downheap ((WT *)timers, timercnt, 0);
423	}	671	}
424	else	672	else
425	evtimer_stop (w); /* nonrepeating: stop timer */	673	ev_timer_stop (w); /* nonrepeating: stop timer */
426	}
427	}
428		674
		675	event ((W)w, EV_TIMEOUT);
		676	}
		677	}
		678
429	static void	679	static void
430	periodics_reify ()	680	periodics_reify (void)
431	{	681	{
432	while (periodiccnt && periodics [0]->at <= ev_now)	682	while (periodiccnt && periodics [0]->at <= ev_now)
433	{	683	{
434	struct ev_periodic *w = periodics [0];	684	struct ev_periodic *w = periodics [0];
435		685
436	/* first reschedule or stop timer */	686	/* first reschedule or stop timer */
437	if (w->interval)	687	if (w->interval)
438	{	688	{
439	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;
440	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));
441	downheap ((WT *)periodics, periodiccnt, 0);	691	downheap ((WT *)periodics, periodiccnt, 0);
442	}	692	}
443	else	693	else
444	evperiodic_stop (w); /* nonrepeating: stop timer */	694	ev_periodic_stop (w); /* nonrepeating: stop timer */
445		695
446	event ((W)w, EV_TIMEOUT);	696	event ((W)w, EV_PERIODIC);
447	}	697	}
448	}	698	}
449		699
450	static void	700	static void
451	periodics_reschedule (ev_tstamp diff)	701	periodics_reschedule (ev_tstamp diff)
…		…
461	{	711	{
462	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;
463		713
464	if (fabs (diff) >= 1e-4)	714	if (fabs (diff) >= 1e-4)
465	{	715	{
466	evperiodic_stop (w);	716	ev_periodic_stop (w);
467	evperiodic_start (w);	717	ev_periodic_start (w);
468		718
469	i = 0; /* restart loop, inefficient, but time jumps should be rare */	719	i = 0; /* restart loop, inefficient, but time jumps should be rare */
470	}	720	}
471	}	721	}
472	}	722	}
473	}	723	}
474		724
475	static void	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
		743	static void
476	time_update ()	744	time_update (void)
477	{	745	{
478	int i;	746	int i;
479		747
480	ev_now = ev_time ();	748	#if EV_USE_MONOTONIC
481
482	if (have_monotonic)	749	if (expect_true (have_monotonic))
483	{	750	{
484	ev_tstamp odiff = diff;	751	if (time_update_monotonic ())
485
486	for (i = 4; --i; ) /* loop a few times, before making important decisions */
487	{	752	{
488	now = get_clock ();	753	ev_tstamp odiff = diff;
		754
		755	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		756	{
489	diff = ev_now - now;	757	diff = ev_now - now;
490		758
491	if (fabs (odiff - diff) < MIN_TIMEJUMP)	759	if (fabs (odiff - diff) < MIN_TIMEJUMP)
492	return; /* all is well */	760	return; /* all is well */
493		761
494	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 */
495	}	769	}
496
497	periodics_reschedule (diff - odiff);
498	/* no timer adjustment, as the monotonic clock doesn't jump */
499	}	770	}
500	else	771	else
		772	#endif
501	{	773	{
		774	ev_now = ev_time ();
		775
502	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))
503	{	777	{
504	periodics_reschedule (ev_now - now);	778	periodics_reschedule (ev_now - now);
505		779
506	/* 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 */
507	for (i = 0; i < timercnt; ++i)	781	for (i = 0; i < timercnt; ++i)
…		…
515	int ev_loop_done;	789	int ev_loop_done;
516		790
517	void ev_loop (int flags)	791	void ev_loop (int flags)
518	{	792	{
519	double block;	793	double block;
520	ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0;	794	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
521
522	if (checkcnt)
523	{
524	queue_events ((W *)checks, checkcnt, EV_CHECK);
525	call_pending ();
526	}
527		795
528	do	796	do
529	{	797	{
		798	/* queue check watchers (and execute them) */
		799	if (expect_false (preparecnt))
		800	{
		801	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
		802	call_pending ();
		803	}
		804
530	/* update fd-related kernel structures */	805	/* update fd-related kernel structures */
531	fd_reify ();	806	fd_reify ();
532		807
533	/* calculate blocking time */	808	/* calculate blocking time */
534		809
535	/* we only need this for !monotonic clock, but as we always have timers, we just calculate it every time */	810	/* we only need this for !monotonic clockor timers, but as we basically
		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	{
536	ev_now = ev_time ();	818	ev_now = ev_time ();
		819	now = ev_now;
		820	}
537		821
538	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	822	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
539	block = 0.;	823	block = 0.;
540	else	824	else
541	{	825	{
542	block = MAX_BLOCKTIME;	826	block = MAX_BLOCKTIME;
543		827
544	if (timercnt)	828	if (timercnt)
545	{	829	{
546	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	830	ev_tstamp to = timers [0]->at - now + method_fudge;
547	if (block > to) block = to;	831	if (block > to) block = to;
548	}	832	}
549		833
550	if (periodiccnt)	834	if (periodiccnt)
551	{	835	{
…		…
560		844
561	/* update ev_now, do magic */	845	/* update ev_now, do magic */
562	time_update ();	846	time_update ();
563		847
564	/* queue pending timers and reschedule them */	848	/* queue pending timers and reschedule them */
		849	timers_reify (); /* relative timers called last */
565	periodics_reify (); /* absolute timers first */	850	periodics_reify (); /* absolute timers called first */
566	timers_reify (); /* relative timers second */
567		851
568	/* queue idle watchers unless io or timers are pending */	852	/* queue idle watchers unless io or timers are pending */
569	if (!pendingcnt)	853	if (!pendingcnt)
570	queue_events ((W *)idles, idlecnt, EV_IDLE);	854	queue_events ((W *)idles, idlecnt, EV_IDLE);
571		855
572	/* queue check and possibly idle watchers */	856	/* queue check watchers, to be executed first */
		857	if (checkcnt)
573	queue_events ((W *)checks, checkcnt, EV_CHECK);	858	queue_events ((W *)checks, checkcnt, EV_CHECK);
574		859
575	call_pending ();	860	call_pending ();
576	}	861	}
577	while (!ev_loop_done);	862	while (!ev_loop_done);
578		863
…		…
603	head = &(*head)->next;	888	head = &(*head)->next;
604	}	889	}
605	}	890	}
606		891
607	static void	892	static void
608	ev_clear (W w)	893	ev_clear_pending (W w)
609	{	894	{
610	if (w->pending)	895	if (w->pending)
611	{	896	{
612	pendings [w->pending - 1].w = 0;	897	pendings [ABSPRI (w)][w->pending - 1].w = 0;
613	w->pending = 0;	898	w->pending = 0;
614	}	899	}
615	}	900	}
616		901
617	static void	902	static void
618	ev_start (W w, int active)	903	ev_start (W w, int active)
619	{	904	{
		905	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		906	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		907
620	w->active = active;	908	w->active = active;
621	}	909	}
622		910
623	static void	911	static void
624	ev_stop (W w)	912	ev_stop (W w)
…		…
627	}	915	}
628		916
629	/*****************************************************************************/	917	/*****************************************************************************/
630		918
631	void	919	void
632	evio_start (struct ev_io *w)	920	ev_io_start (struct ev_io *w)
633	{	921	{
		922	int fd = w->fd;
		923
634	if (ev_is_active (w))	924	if (ev_is_active (w))
635	return;	925	return;
636		926
637	int fd = w->fd;	927	assert (("ev_io_start called with negative fd", fd >= 0));
638		928
639	ev_start ((W)w, 1);	929	ev_start ((W)w, 1);
640	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	930	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
641	wlist_add ((WL *)&anfds[fd].head, (WL)w);	931	wlist_add ((WL *)&anfds[fd].head, (WL)w);
642		932
643	++fdchangecnt;	933	fd_change (fd);
644	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
645	fdchanges [fdchangecnt - 1] = fd;
646	}	934	}
647		935
648	void	936	void
649	evio_stop (struct ev_io *w)	937	ev_io_stop (struct ev_io *w)
650	{	938	{
651	ev_clear ((W)w);	939	ev_clear_pending ((W)w);
652	if (!ev_is_active (w))	940	if (!ev_is_active (w))
653	return;	941	return;
654		942
655	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	943	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
656	ev_stop ((W)w);	944	ev_stop ((W)w);
657		945
658	++fdchangecnt;	946	fd_change (w->fd);
659	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
660	fdchanges [fdchangecnt - 1] = w->fd;
661	}	947	}
662		948
663	void	949	void
664	evtimer_start (struct ev_timer *w)	950	ev_timer_start (struct ev_timer *w)
665	{	951	{
666	if (ev_is_active (w))	952	if (ev_is_active (w))
667	return;	953	return;
668		954
669	w->at += now;	955	w->at += now;
670		956
671	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.));
672		958
673	ev_start ((W)w, ++timercnt);	959	ev_start ((W)w, ++timercnt);
674	array_needsize (timers, timermax, timercnt, );	960	array_needsize (timers, timermax, timercnt, );
675	timers [timercnt - 1] = w;	961	timers [timercnt - 1] = w;
676	upheap ((WT *)timers, timercnt - 1);	962	upheap ((WT *)timers, timercnt - 1);
677	}	963	}
678		964
679	void	965	void
680	evtimer_stop (struct ev_timer *w)	966	ev_timer_stop (struct ev_timer *w)
681	{	967	{
682	ev_clear ((W)w);	968	ev_clear_pending ((W)w);
683	if (!ev_is_active (w))	969	if (!ev_is_active (w))
684	return;	970	return;
685		971
686	if (w->active < timercnt--)	972	if (w->active < timercnt--)
687	{	973	{
…		…
693		979
694	ev_stop ((W)w);	980	ev_stop ((W)w);
695	}	981	}
696		982
697	void	983	void
698	evtimer_again (struct ev_timer *w)	984	ev_timer_again (struct ev_timer *w)
699	{	985	{
700	if (ev_is_active (w))	986	if (ev_is_active (w))
701	{	987	{
702	if (w->repeat)	988	if (w->repeat)
703	{	989	{
704	w->at = now + w->repeat;	990	w->at = now + w->repeat;
705	downheap ((WT *)timers, timercnt, w->active - 1);	991	downheap ((WT *)timers, timercnt, w->active - 1);
706	}	992	}
707	else	993	else
708	evtimer_stop (w);	994	ev_timer_stop (w);
709	}	995	}
710	else if (w->repeat)	996	else if (w->repeat)
711	evtimer_start (w);	997	ev_timer_start (w);
712	}	998	}
713		999
714	void	1000	void
715	evperiodic_start (struct ev_periodic *w)	1001	ev_periodic_start (struct ev_periodic *w)
716	{	1002	{
717	if (ev_is_active (w))	1003	if (ev_is_active (w))
718	return;	1004	return;
719		1005
720	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.));
721		1007
722	/* 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 */
723	if (w->interval)	1009	if (w->interval)
724	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1010	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
725		1011
…		…
728	periodics [periodiccnt - 1] = w;	1014	periodics [periodiccnt - 1] = w;
729	upheap ((WT *)periodics, periodiccnt - 1);	1015	upheap ((WT *)periodics, periodiccnt - 1);
730	}	1016	}
731		1017
732	void	1018	void
733	evperiodic_stop (struct ev_periodic *w)	1019	ev_periodic_stop (struct ev_periodic *w)
734	{	1020	{
735	ev_clear ((W)w);	1021	ev_clear_pending ((W)w);
736	if (!ev_is_active (w))	1022	if (!ev_is_active (w))
737	return;	1023	return;
738		1024
739	if (w->active < periodiccnt--)	1025	if (w->active < periodiccnt--)
740	{	1026	{
…		…
743	}	1029	}
744		1030
745	ev_stop ((W)w);	1031	ev_stop ((W)w);
746	}	1032	}
747		1033
		1034	#ifndef SA_RESTART
		1035	# define SA_RESTART 0
		1036	#endif
		1037
748	void	1038	void
749	evsignal_start (struct ev_signal *w)	1039	ev_signal_start (struct ev_signal *w)
750	{	1040	{
751	if (ev_is_active (w))	1041	if (ev_is_active (w))
752	return;	1042	return;
		1043
		1044	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
753		1045
754	ev_start ((W)w, 1);	1046	ev_start ((W)w, 1);
755	array_needsize (signals, signalmax, w->signum, signals_init);	1047	array_needsize (signals, signalmax, w->signum, signals_init);
756	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1048	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
757		1049
758	if (!w->next)	1050	if (!w->next)
759	{	1051	{
760	struct sigaction sa;	1052	struct sigaction sa;
761	sa.sa_handler = sighandler;	1053	sa.sa_handler = sighandler;
762	sigfillset (&sa.sa_mask);	1054	sigfillset (&sa.sa_mask);
763	sa.sa_flags = 0;	1055	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
764	sigaction (w->signum, &sa, 0);	1056	sigaction (w->signum, &sa, 0);
765	}	1057	}
766	}	1058	}
767		1059
768	void	1060	void
769	evsignal_stop (struct ev_signal *w)	1061	ev_signal_stop (struct ev_signal *w)
770	{	1062	{
771	ev_clear ((W)w);	1063	ev_clear_pending ((W)w);
772	if (!ev_is_active (w))	1064	if (!ev_is_active (w))
773	return;	1065	return;
774		1066
775	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1067	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
776	ev_stop ((W)w);	1068	ev_stop ((W)w);
777		1069
778	if (!signals [w->signum - 1].head)	1070	if (!signals [w->signum - 1].head)
779	signal (w->signum, SIG_DFL);	1071	signal (w->signum, SIG_DFL);
780	}	1072	}
781		1073
		1074	void
782	void evidle_start (struct ev_idle *w)	1075	ev_idle_start (struct ev_idle *w)
783	{	1076	{
784	if (ev_is_active (w))	1077	if (ev_is_active (w))
785	return;	1078	return;
786		1079
787	ev_start ((W)w, ++idlecnt);	1080	ev_start ((W)w, ++idlecnt);
788	array_needsize (idles, idlemax, idlecnt, );	1081	array_needsize (idles, idlemax, idlecnt, );
789	idles [idlecnt - 1] = w;	1082	idles [idlecnt - 1] = w;
790	}	1083	}
791		1084
		1085	void
792	void evidle_stop (struct ev_idle *w)	1086	ev_idle_stop (struct ev_idle *w)
793	{	1087	{
794	ev_clear ((W)w);	1088	ev_clear_pending ((W)w);
795	if (ev_is_active (w))	1089	if (ev_is_active (w))
796	return;	1090	return;
797		1091
798	idles [w->active - 1] = idles [--idlecnt];	1092	idles [w->active - 1] = idles [--idlecnt];
799	ev_stop ((W)w);	1093	ev_stop ((W)w);
800	}	1094	}
801		1095
		1096	void
		1097	ev_prepare_start (struct ev_prepare *w)
		1098	{
		1099	if (ev_is_active (w))
		1100	return;
		1101
		1102	ev_start ((W)w, ++preparecnt);
		1103	array_needsize (prepares, preparemax, preparecnt, );
		1104	prepares [preparecnt - 1] = w;
		1105	}
		1106
		1107	void
		1108	ev_prepare_stop (struct ev_prepare *w)
		1109	{
		1110	ev_clear_pending ((W)w);
		1111	if (ev_is_active (w))
		1112	return;
		1113
		1114	prepares [w->active - 1] = prepares [--preparecnt];
		1115	ev_stop ((W)w);
		1116	}
		1117
		1118	void
802	void evcheck_start (struct ev_check *w)	1119	ev_check_start (struct ev_check *w)
803	{	1120	{
804	if (ev_is_active (w))	1121	if (ev_is_active (w))
805	return;	1122	return;
806		1123
807	ev_start ((W)w, ++checkcnt);	1124	ev_start ((W)w, ++checkcnt);
808	array_needsize (checks, checkmax, checkcnt, );	1125	array_needsize (checks, checkmax, checkcnt, );
809	checks [checkcnt - 1] = w;	1126	checks [checkcnt - 1] = w;
810	}	1127	}
811		1128
		1129	void
812	void evcheck_stop (struct ev_check *w)	1130	ev_check_stop (struct ev_check *w)
813	{	1131	{
814	ev_clear ((W)w);	1132	ev_clear_pending ((W)w);
815	if (ev_is_active (w))	1133	if (ev_is_active (w))
816	return;	1134	return;
817		1135
818	checks [w->active - 1] = checks [--checkcnt];	1136	checks [w->active - 1] = checks [--checkcnt];
		1137	ev_stop ((W)w);
		1138	}
		1139
		1140	void
		1141	ev_child_start (struct ev_child *w)
		1142	{
		1143	if (ev_is_active (w))
		1144	return;
		1145
		1146	ev_start ((W)w, 1);
		1147	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
		1148	}
		1149
		1150	void
		1151	ev_child_stop (struct ev_child *w)
		1152	{
		1153	ev_clear_pending ((W)w);
		1154	if (ev_is_active (w))
		1155	return;
		1156
		1157	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
819	ev_stop ((W)w);	1158	ev_stop ((W)w);
820	}	1159	}
821		1160
822	/*****************************************************************************/	1161	/*****************************************************************************/
823		1162
…		…
833	once_cb (struct ev_once *once, int revents)	1172	once_cb (struct ev_once *once, int revents)
834	{	1173	{
835	void (cb)(int revents, void arg) = once->cb;	1174	void (cb)(int revents, void arg) = once->cb;
836	void *arg = once->arg;	1175	void *arg = once->arg;
837		1176
838	evio_stop (&once->io);	1177	ev_io_stop (&once->io);
839	evtimer_stop (&once->to);	1178	ev_timer_stop (&once->to);
840	free (once);	1179	free (once);
841		1180
842	cb (revents, arg);	1181	cb (revents, arg);
843	}	1182	}
844		1183
…		…
858	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)
859	{	1198	{
860	struct ev_once *once = malloc (sizeof (struct ev_once));	1199	struct ev_once *once = malloc (sizeof (struct ev_once));
861		1200
862	if (!once)	1201	if (!once)
863	cb (EV_ERROR, arg);	1202	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
864	else	1203	else
865	{	1204	{
866	once->cb = cb;	1205	once->cb = cb;
867	once->arg = arg;	1206	once->arg = arg;
868		1207
869	evw_init (&once->io, once_cb_io);	1208	ev_watcher_init (&once->io, once_cb_io);
870
871	if (fd >= 0)	1209	if (fd >= 0)
872	{	1210	{
873	evio_set (&once->io, fd, events);	1211	ev_io_set (&once->io, fd, events);
874	evio_start (&once->io);	1212	ev_io_start (&once->io);
875	}	1213	}
876		1214
877	evw_init (&once->to, once_cb_to);	1215	ev_watcher_init (&once->to, once_cb_to);
878
879	if (timeout >= 0.)	1216	if (timeout >= 0.)
880	{	1217	{
881	evtimer_set (&once->to, timeout, 0.);	1218	ev_timer_set (&once->to, timeout, 0.);
882	evtimer_start (&once->to);	1219	ev_timer_start (&once->to);
883	}	1220	}
884	}	1221	}
885	}	1222	}
886		1223
887	/*****************************************************************************/	1224	/*****************************************************************************/
…		…
898		1235
899	static void	1236	static void
900	ocb (struct ev_timer *w, int revents)	1237	ocb (struct ev_timer *w, int revents)
901	{	1238	{
902	//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);
903	evtimer_stop (w);	1240	ev_timer_stop (w);
904	evtimer_start (w);	1241	ev_timer_start (w);
905	}	1242	}
906		1243
907	static void	1244	static void
908	scb (struct ev_signal *w, int revents)	1245	scb (struct ev_signal *w, int revents)
909	{	1246	{
910	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1247	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
911	evio_stop (&wio);	1248	ev_io_stop (&wio);
912	evio_start (&wio);	1249	ev_io_start (&wio);
913	}	1250	}
914		1251
915	static void	1252	static void
916	gcb (struct ev_signal *w, int revents)	1253	gcb (struct ev_signal *w, int revents)
917	{	1254	{
…		…
921		1258
922	int main (void)	1259	int main (void)
923	{	1260	{
924	ev_init (0);	1261	ev_init (0);
925		1262
926	evio_init (&wio, sin_cb, 0, EV_READ);	1263	ev_io_init (&wio, sin_cb, 0, EV_READ);
927	evio_start (&wio);	1264	ev_io_start (&wio);
928		1265
929	struct ev_timer t[10000];	1266	struct ev_timer t[10000];
930		1267
931	#if 0	1268	#if 0
932	int i;	1269	int i;
933	for (i = 0; i < 10000; ++i)	1270	for (i = 0; i < 10000; ++i)
934	{	1271	{
935	struct ev_timer *w = t + i;	1272	struct ev_timer *w = t + i;
936	evw_init (w, ocb, i);	1273	ev_watcher_init (w, ocb, i);
937	evtimer_init_abs (w, ocb, drand48 (), 0.99775533);	1274	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
938	evtimer_start (w);	1275	ev_timer_start (w);
939	if (drand48 () < 0.5)	1276	if (drand48 () < 0.5)
940	evtimer_stop (w);	1277	ev_timer_stop (w);
941	}	1278	}
942	#endif	1279	#endif
943		1280
944	struct ev_timer t1;	1281	struct ev_timer t1;
945	evtimer_init (&t1, ocb, 5, 10);	1282	ev_timer_init (&t1, ocb, 5, 10);
946	evtimer_start (&t1);	1283	ev_timer_start (&t1);
947		1284
948	struct ev_signal sig;	1285	struct ev_signal sig;
949	evsignal_init (&sig, scb, SIGQUIT);	1286	ev_signal_init (&sig, scb, SIGQUIT);
950	evsignal_start (&sig);	1287	ev_signal_start (&sig);
951		1288
952	struct ev_check cw;	1289	struct ev_check cw;
953	evcheck_init (&cw, gcb);	1290	ev_check_init (&cw, gcb);
954	evcheck_start (&cw);	1291	ev_check_start (&cw);
955		1292
956	struct ev_idle iw;	1293	struct ev_idle iw;
957	evidle_init (&iw, gcb);	1294	ev_idle_init (&iw, gcb);
958	evidle_start (&iw);	1295	ev_idle_start (&iw);
959		1296
960	ev_loop (0);	1297	ev_loop (0);
961		1298
962	return 0;	1299	return 0;
963	}	1300	}

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.16 by root, Wed Oct 31 13:57:34 2007 UTC vs. Revision 1.50 by root, Sat Nov 3 19:41:55 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.16 by root, Wed Oct 31 13:57:34 2007 UTC vs.
Revision 1.50 by root, Sat Nov 3 19:41:55 2007 UTC