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

Comparing libev/ev.c (file contents):
Revision 1.23 by root, Wed Oct 31 20:10:17 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 ()	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);
210	evio_stop (anfds [fd].head);	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	}
211	}	332	}
212		333
213	/*****************************************************************************/	334	/*****************************************************************************/
214		335
215	static struct ev_timer **timers;	336	static struct ev_timer **timers;
…		…
261		382
262	/*****************************************************************************/	383	/*****************************************************************************/
263		384
264	typedef struct	385	typedef struct
265	{	386	{
266	struct ev_signal *head;	387	struct ev_watcher_list *head;
267	sig_atomic_t gotsig;	388	sig_atomic_t volatile gotsig;
268	} ANSIG;	389	} ANSIG;
269		390
270	static ANSIG *signals;	391	static ANSIG *signals;
271	static int signalmax;	392	static int signalmax;
272		393
273	static int sigpipe [2];	394	static int sigpipe [2];
274	static sig_atomic_t gotsig;	395	static sig_atomic_t volatile gotsig;
275	static struct ev_io sigev;	396	static struct ev_io sigev;
276		397
277	static void	398	static void
278	signals_init (ANSIG *base, int count)	399	signals_init (ANSIG *base, int count)
279	{	400	{
280	while (count--)	401	while (count--)
281	{	402	{
282	base->head = 0;	403	base->head = 0;
283	base->gotsig = 0;	404	base->gotsig = 0;
		405
284	++base;	406	++base;
285	}	407	}
286	}	408	}
287		409
288	static void	410	static void
…		…
290	{	412	{
291	signals [signum - 1].gotsig = 1;	413	signals [signum - 1].gotsig = 1;
292		414
293	if (!gotsig)	415	if (!gotsig)
294	{	416	{
		417	int old_errno = errno;
295	gotsig = 1;	418	gotsig = 1;
296	write (sigpipe [1], &gotsig, 1);	419	write (sigpipe [1], &signum, 1);
		420	errno = old_errno;
297	}	421	}
298	}	422	}
299		423
300	static void	424	static void
301	sigcb (struct ev_io *iow, int revents)	425	sigcb (struct ev_io *iow, int revents)
302	{	426	{
303	struct ev_signal *w;	427	struct ev_watcher_list *w;
304	int sig;	428	int signum;
305		429
		430	read (sigpipe [0], &revents, 1);
306	gotsig = 0;	431	gotsig = 0;
307	read (sigpipe [0], &revents, 1);
308		432
309	for (sig = signalmax; sig--; )	433	for (signum = signalmax; signum--; )
310	if (signals [sig].gotsig)	434	if (signals [signum].gotsig)
311	{	435	{
312	signals [sig].gotsig = 0;	436	signals [signum].gotsig = 0;
313		437
314	for (w = signals [sig].head; w; w = w->next)	438	for (w = signals [signum].head; w; w = w->next)
315	event ((W)w, EV_SIGNAL);	439	event ((W)w, EV_SIGNAL);
316	}	440	}
317	}	441	}
318		442
319	static void	443	static void
320	siginit (void)	444	siginit (void)
321	{	445	{
		446	#ifndef WIN32
322	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	447	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
323	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	448	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
324		449
325	/* rather than sort out wether we really need nb, set it */	450	/* rather than sort out wether we really need nb, set it */
326	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	451	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
327	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	452	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		453	#endif
328		454
329	evio_set (&sigev, sigpipe [0], EV_READ);	455	ev_io_set (&sigev, sigpipe [0], EV_READ);
330	evio_start (&sigev);	456	ev_io_start (&sigev);
331	}	457	}
332		458
333	/*****************************************************************************/	459	/*****************************************************************************/
334		460
335	static struct ev_idle **idles;	461	static struct ev_idle **idles;
…		…
344	/*****************************************************************************/	470	/*****************************************************************************/
345		471
346	static struct ev_child *childs [PID_HASHSIZE];	472	static struct ev_child *childs [PID_HASHSIZE];
347	static struct ev_signal childev;	473	static struct ev_signal childev;
348		474
		475	#ifndef WIN32
		476
349	#ifndef WCONTINUED	477	#ifndef WCONTINUED
350	# define WCONTINUED 0	478	# define WCONTINUED 0
351	#endif	479	#endif
352		480
353	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
354	childcb (struct ev_signal *sw, int revents)	497	childcb (struct ev_signal *sw, int revents)
355	{	498	{
356	struct ev_child *w;
357	int pid, status;	499	int pid, status;
358		500
359	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	501	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
360	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	502	{
361	if (w->pid == pid \|\| w->pid == -1)	503	/* make sure we are called again until all childs have been reaped */
362	{
363	w->status = status;
364	event ((W)w, EV_CHILD);	504	event ((W)sw, EV_SIGNAL);
365	}	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	}
366	}	509	}
		510
		511	#endif
367		512
368	/*****************************************************************************/	513	/*****************************************************************************/
369		514
		515	#if EV_USE_KQUEUE
		516	# include "ev_kqueue.c"
		517	#endif
370	#if HAVE_EPOLL	518	#if EV_USE_EPOLL
371	# include "ev_epoll.c"	519	# include "ev_epoll.c"
372	#endif	520	#endif
		521	#if EV_USE_POLL
		522	# include "ev_poll.c"
		523	#endif
373	#if HAVE_SELECT	524	#if EV_USE_SELECT
374	# include "ev_select.c"	525	# include "ev_select.c"
375	#endif	526	#endif
376		527
		528	int
		529	ev_version_major (void)
		530	{
		531	return EV_VERSION_MAJOR;
		532	}
		533
		534	int
		535	ev_version_minor (void)
		536	{
		537	return EV_VERSION_MINOR;
		538	}
		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
377	int ev_init (int flags)	552	int ev_init (int methods)
378	{	553	{
379	if (!ev_method)	554	if (!ev_method)
380	{	555	{
381	#if HAVE_MONOTONIC	556	#if EV_USE_MONOTONIC
382	{	557	{
383	struct timespec ts;	558	struct timespec ts;
384	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	559	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
385	have_monotonic = 1;	560	have_monotonic = 1;
386	}	561	}
387	#endif	562	#endif
388		563
389	ev_now = ev_time ();	564	ev_now = ev_time ();
390	now = get_clock ();	565	now = get_clock ();
		566	now_floor = now;
391	diff = ev_now - now;	567	diff = ev_now - now;
392		568
393	if (pipe (sigpipe))	569	if (pipe (sigpipe))
394	return 0;	570	return 0;
395		571
		572	if (methods == EVMETHOD_AUTO)
		573	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		574	methods = atoi (getenv ("LIBEV_METHODS"));
		575	else
396	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
397	#if HAVE_EPOLL	582	#if EV_USE_EPOLL
398	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	583	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);
399	#endif	584	#endif
		585	#if EV_USE_POLL
		586	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);
		587	#endif
400	#if HAVE_SELECT	588	#if EV_USE_SELECT
401	if (ev_method == EVMETHOD_NONE) select_init (flags);	589	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);
402	#endif	590	#endif
403		591
404	if (ev_method)	592	if (ev_method)
405	{	593	{
406	evw_init (&sigev, sigcb);	594	ev_watcher_init (&sigev, sigcb);
		595	ev_set_priority (&sigev, EV_MAXPRI);
407	siginit ();	596	siginit ();
408		597
		598	#ifndef WIN32
409	evsignal_init (&childev, childcb, SIGCHLD);	599	ev_signal_init (&childev, childcb, SIGCHLD);
		600	ev_set_priority (&childev, EV_MAXPRI);
410	evsignal_start (&childev);	601	ev_signal_start (&childev);
		602	#endif
411	}	603	}
412	}	604	}
413		605
414	return ev_method;	606	return ev_method;
415	}	607	}
416		608
417	/*****************************************************************************/	609	/*****************************************************************************/
418		610
419	void ev_prefork (void)	611	void
		612	ev_fork_prepare (void)
420	{	613	{
421	/* nop */	614	/* nop */
422	}	615	}
423		616
		617	void
424	void ev_postfork_parent (void)	618	ev_fork_parent (void)
425	{	619	{
426	/* nop */	620	/* nop */
427	}	621	}
428		622
		623	void
429	void ev_postfork_child (void)	624	ev_fork_child (void)
430	{	625	{
431	#if HAVE_EPOLL	626	#if EV_USE_EPOLL
432	if (ev_method == EVMETHOD_EPOLL)	627	if (ev_method == EVMETHOD_EPOLL)
433	epoll_postfork_child ();	628	epoll_postfork_child ();
434	#endif	629	#endif
435		630
436	evio_stop (&sigev);	631	ev_io_stop (&sigev);
437	close (sigpipe [0]);	632	close (sigpipe [0]);
438	close (sigpipe [1]);	633	close (sigpipe [1]);
439	pipe (sigpipe);	634	pipe (sigpipe);
440	siginit ();	635	siginit ();
441	}	636	}
442		637
443	/*****************************************************************************/	638	/*****************************************************************************/
444		639
445	static void	640	static void
446	fd_reify (void)	641	call_pending (void)
447	{	642	{
448	int i;	643	int pri;
449		644
450	for (i = 0; i < fdchangecnt; ++i)	645	for (pri = NUMPRI; pri--; )
451	{	646	while (pendingcnt [pri])
452	int fd = fdchanges [i];
453	ANFD *anfd = anfds + fd;
454	struct ev_io *w;
455
456	int wev = 0;
457
458	for (w = anfd->head; w; w = w->next)
459	wev \|= w->events;
460
461	if (anfd->wev != wev)
462	{	647	{
463	method_modify (fd, anfd->wev, wev);
464	anfd->wev = wev;
465	}
466	}
467
468	fdchangecnt = 0;
469	}
470
471	static void
472	call_pending ()
473	{
474	while (pendingcnt)
475	{
476	ANPENDING *p = pendings + --pendingcnt;	648	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
477		649
478	if (p->w)	650	if (p->w)
479	{	651	{
480	p->w->pending = 0;	652	p->w->pending = 0;
481	p->w->cb (p->w, p->events);	653	p->w->cb (p->w, p->events);
482	}	654	}
483	}	655	}
484	}	656	}
485		657
486	static void	658	static void
487	timers_reify ()	659	timers_reify (void)
488	{	660	{
489	while (timercnt && timers [0]->at <= now)	661	while (timercnt && timers [0]->at <= now)
490	{	662	{
491	struct ev_timer *w = timers [0];	663	struct ev_timer *w = timers [0];
492
493	event ((W)w, EV_TIMEOUT);
494		664
495	/* first reschedule or stop timer */	665	/* first reschedule or stop timer */
496	if (w->repeat)	666	if (w->repeat)
497	{	667	{
		668	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
498	w->at = now + w->repeat;	669	w->at = now + w->repeat;
499	assert (("timer timeout in the past, negative repeat?", w->at > now));
500	downheap ((WT *)timers, timercnt, 0);	670	downheap ((WT *)timers, timercnt, 0);
501	}	671	}
502	else	672	else
503	evtimer_stop (w); /* nonrepeating: stop timer */	673	ev_timer_stop (w); /* nonrepeating: stop timer */
504	}
505	}
506		674
		675	event ((W)w, EV_TIMEOUT);
		676	}
		677	}
		678
507	static void	679	static void
508	periodics_reify ()	680	periodics_reify (void)
509	{	681	{
510	while (periodiccnt && periodics [0]->at <= ev_now)	682	while (periodiccnt && periodics [0]->at <= ev_now)
511	{	683	{
512	struct ev_periodic *w = periodics [0];	684	struct ev_periodic *w = periodics [0];
513		685
514	/* first reschedule or stop timer */	686	/* first reschedule or stop timer */
515	if (w->interval)	687	if (w->interval)
516	{	688	{
517	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;
518	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));
519	downheap ((WT *)periodics, periodiccnt, 0);	691	downheap ((WT *)periodics, periodiccnt, 0);
520	}	692	}
521	else	693	else
522	evperiodic_stop (w); /* nonrepeating: stop timer */	694	ev_periodic_stop (w); /* nonrepeating: stop timer */
523		695
524	event ((W)w, EV_TIMEOUT);	696	event ((W)w, EV_PERIODIC);
525	}	697	}
526	}	698	}
527		699
528	static void	700	static void
529	periodics_reschedule (ev_tstamp diff)	701	periodics_reschedule (ev_tstamp diff)
…		…
539	{	711	{
540	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;
541		713
542	if (fabs (diff) >= 1e-4)	714	if (fabs (diff) >= 1e-4)
543	{	715	{
544	evperiodic_stop (w);	716	ev_periodic_stop (w);
545	evperiodic_start (w);	717	ev_periodic_start (w);
546		718
547	i = 0; /* restart loop, inefficient, but time jumps should be rare */	719	i = 0; /* restart loop, inefficient, but time jumps should be rare */
548	}	720	}
549	}	721	}
550	}	722	}
551	}	723	}
552		724
553	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
554	time_update ()	744	time_update (void)
555	{	745	{
556	int i;	746	int i;
557		747
558	ev_now = ev_time ();	748	#if EV_USE_MONOTONIC
559
560	if (have_monotonic)	749	if (expect_true (have_monotonic))
561	{	750	{
562	ev_tstamp odiff = diff;	751	if (time_update_monotonic ())
563
564	for (i = 4; --i; ) /* loop a few times, before making important decisions */
565	{	752	{
566	now = get_clock ();	753	ev_tstamp odiff = diff;
		754
		755	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		756	{
567	diff = ev_now - now;	757	diff = ev_now - now;
568		758
569	if (fabs (odiff - diff) < MIN_TIMEJUMP)	759	if (fabs (odiff - diff) < MIN_TIMEJUMP)
570	return; /* all is well */	760	return; /* all is well */
571		761
572	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 */
573	}	769	}
574
575	periodics_reschedule (diff - odiff);
576	/* no timer adjustment, as the monotonic clock doesn't jump */
577	}	770	}
578	else	771	else
		772	#endif
579	{	773	{
		774	ev_now = ev_time ();
		775
580	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))
581	{	777	{
582	periodics_reschedule (ev_now - now);	778	periodics_reschedule (ev_now - now);
583		779
584	/* 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 */
585	for (i = 0; i < timercnt; ++i)	781	for (i = 0; i < timercnt; ++i)
…		…
593	int ev_loop_done;	789	int ev_loop_done;
594		790
595	void ev_loop (int flags)	791	void ev_loop (int flags)
596	{	792	{
597	double block;	793	double block;
598	ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0;	794	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
599		795
600	do	796	do
601	{	797	{
602	/* queue check watchers (and execute them) */	798	/* queue check watchers (and execute them) */
603	if (preparecnt)	799	if (expect_false (preparecnt))
604	{	800	{
605	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	801	queue_events ((W *)prepares, preparecnt, EV_PREPARE);
606	call_pending ();	802	call_pending ();
607	}	803	}
608		804
…		…
611		807
612	/* calculate blocking time */	808	/* calculate blocking time */
613		809
614	/* 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
615	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	{
616	ev_now = ev_time ();	818	ev_now = ev_time ();
		819	now = ev_now;
		820	}
617		821
618	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	822	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
619	block = 0.;	823	block = 0.;
620	else	824	else
621	{	825	{
622	block = MAX_BLOCKTIME;	826	block = MAX_BLOCKTIME;
623		827
624	if (timercnt)	828	if (timercnt)
625	{	829	{
626	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	830	ev_tstamp to = timers [0]->at - now + method_fudge;
627	if (block > to) block = to;	831	if (block > to) block = to;
628	}	832	}
629		833
630	if (periodiccnt)	834	if (periodiccnt)
631	{	835	{
…		…
684	head = &(*head)->next;	888	head = &(*head)->next;
685	}	889	}
686	}	890	}
687		891
688	static void	892	static void
689	ev_clear (W w)	893	ev_clear_pending (W w)
690	{	894	{
691	if (w->pending)	895	if (w->pending)
692	{	896	{
693	pendings [w->pending - 1].w = 0;	897	pendings [ABSPRI (w)][w->pending - 1].w = 0;
694	w->pending = 0;	898	w->pending = 0;
695	}	899	}
696	}	900	}
697		901
698	static void	902	static void
699	ev_start (W w, int active)	903	ev_start (W w, int active)
700	{	904	{
		905	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		906	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		907
701	w->active = active;	908	w->active = active;
702	}	909	}
703		910
704	static void	911	static void
705	ev_stop (W w)	912	ev_stop (W w)
…		…
708	}	915	}
709		916
710	/*****************************************************************************/	917	/*****************************************************************************/
711		918
712	void	919	void
713	evio_start (struct ev_io *w)	920	ev_io_start (struct ev_io *w)
714	{	921	{
		922	int fd = w->fd;
		923
715	if (ev_is_active (w))	924	if (ev_is_active (w))
716	return;	925	return;
717		926
718	int fd = w->fd;	927	assert (("ev_io_start called with negative fd", fd >= 0));
719		928
720	ev_start ((W)w, 1);	929	ev_start ((W)w, 1);
721	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	930	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
722	wlist_add ((WL *)&anfds[fd].head, (WL)w);	931	wlist_add ((WL *)&anfds[fd].head, (WL)w);
723		932
724	++fdchangecnt;	933	fd_change (fd);
725	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
726	fdchanges [fdchangecnt - 1] = fd;
727	}	934	}
728		935
729	void	936	void
730	evio_stop (struct ev_io *w)	937	ev_io_stop (struct ev_io *w)
731	{	938	{
732	ev_clear ((W)w);	939	ev_clear_pending ((W)w);
733	if (!ev_is_active (w))	940	if (!ev_is_active (w))
734	return;	941	return;
735		942
736	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	943	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
737	ev_stop ((W)w);	944	ev_stop ((W)w);
738		945
739	++fdchangecnt;	946	fd_change (w->fd);
740	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
741	fdchanges [fdchangecnt - 1] = w->fd;
742	}	947	}
743		948
744	void	949	void
745	evtimer_start (struct ev_timer *w)	950	ev_timer_start (struct ev_timer *w)
746	{	951	{
747	if (ev_is_active (w))	952	if (ev_is_active (w))
748	return;	953	return;
749		954
750	w->at += now;	955	w->at += now;
751		956
752	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.));
753		958
754	ev_start ((W)w, ++timercnt);	959	ev_start ((W)w, ++timercnt);
755	array_needsize (timers, timermax, timercnt, );	960	array_needsize (timers, timermax, timercnt, );
756	timers [timercnt - 1] = w;	961	timers [timercnt - 1] = w;
757	upheap ((WT *)timers, timercnt - 1);	962	upheap ((WT *)timers, timercnt - 1);
758	}	963	}
759		964
760	void	965	void
761	evtimer_stop (struct ev_timer *w)	966	ev_timer_stop (struct ev_timer *w)
762	{	967	{
763	ev_clear ((W)w);	968	ev_clear_pending ((W)w);
764	if (!ev_is_active (w))	969	if (!ev_is_active (w))
765	return;	970	return;
766		971
767	if (w->active < timercnt--)	972	if (w->active < timercnt--)
768	{	973	{
…		…
774		979
775	ev_stop ((W)w);	980	ev_stop ((W)w);
776	}	981	}
777		982
778	void	983	void
779	evtimer_again (struct ev_timer *w)	984	ev_timer_again (struct ev_timer *w)
780	{	985	{
781	if (ev_is_active (w))	986	if (ev_is_active (w))
782	{	987	{
783	if (w->repeat)	988	if (w->repeat)
784	{	989	{
785	w->at = now + w->repeat;	990	w->at = now + w->repeat;
786	downheap ((WT *)timers, timercnt, w->active - 1);	991	downheap ((WT *)timers, timercnt, w->active - 1);
787	}	992	}
788	else	993	else
789	evtimer_stop (w);	994	ev_timer_stop (w);
790	}	995	}
791	else if (w->repeat)	996	else if (w->repeat)
792	evtimer_start (w);	997	ev_timer_start (w);
793	}	998	}
794		999
795	void	1000	void
796	evperiodic_start (struct ev_periodic *w)	1001	ev_periodic_start (struct ev_periodic *w)
797	{	1002	{
798	if (ev_is_active (w))	1003	if (ev_is_active (w))
799	return;	1004	return;
800		1005
801	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.));
802		1007
803	/* 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 */
804	if (w->interval)	1009	if (w->interval)
805	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1010	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;
806		1011
…		…
809	periodics [periodiccnt - 1] = w;	1014	periodics [periodiccnt - 1] = w;
810	upheap ((WT *)periodics, periodiccnt - 1);	1015	upheap ((WT *)periodics, periodiccnt - 1);
811	}	1016	}
812		1017
813	void	1018	void
814	evperiodic_stop (struct ev_periodic *w)	1019	ev_periodic_stop (struct ev_periodic *w)
815	{	1020	{
816	ev_clear ((W)w);	1021	ev_clear_pending ((W)w);
817	if (!ev_is_active (w))	1022	if (!ev_is_active (w))
818	return;	1023	return;
819		1024
820	if (w->active < periodiccnt--)	1025	if (w->active < periodiccnt--)
821	{	1026	{
…		…
824	}	1029	}
825		1030
826	ev_stop ((W)w);	1031	ev_stop ((W)w);
827	}	1032	}
828		1033
		1034	#ifndef SA_RESTART
		1035	# define SA_RESTART 0
		1036	#endif
		1037
829	void	1038	void
830	evsignal_start (struct ev_signal *w)	1039	ev_signal_start (struct ev_signal *w)
831	{	1040	{
832	if (ev_is_active (w))	1041	if (ev_is_active (w))
833	return;	1042	return;
		1043
		1044	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
834		1045
835	ev_start ((W)w, 1);	1046	ev_start ((W)w, 1);
836	array_needsize (signals, signalmax, w->signum, signals_init);	1047	array_needsize (signals, signalmax, w->signum, signals_init);
837	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1048	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
838		1049
839	if (!w->next)	1050	if (!w->next)
840	{	1051	{
841	struct sigaction sa;	1052	struct sigaction sa;
842	sa.sa_handler = sighandler;	1053	sa.sa_handler = sighandler;
843	sigfillset (&sa.sa_mask);	1054	sigfillset (&sa.sa_mask);
844	sa.sa_flags = 0;	1055	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
845	sigaction (w->signum, &sa, 0);	1056	sigaction (w->signum, &sa, 0);
846	}	1057	}
847	}	1058	}
848		1059
849	void	1060	void
850	evsignal_stop (struct ev_signal *w)	1061	ev_signal_stop (struct ev_signal *w)
851	{	1062	{
852	ev_clear ((W)w);	1063	ev_clear_pending ((W)w);
853	if (!ev_is_active (w))	1064	if (!ev_is_active (w))
854	return;	1065	return;
855		1066
856	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1067	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
857	ev_stop ((W)w);	1068	ev_stop ((W)w);
858		1069
859	if (!signals [w->signum - 1].head)	1070	if (!signals [w->signum - 1].head)
860	signal (w->signum, SIG_DFL);	1071	signal (w->signum, SIG_DFL);
861	}	1072	}
862		1073
		1074	void
863	void evidle_start (struct ev_idle *w)	1075	ev_idle_start (struct ev_idle *w)
864	{	1076	{
865	if (ev_is_active (w))	1077	if (ev_is_active (w))
866	return;	1078	return;
867		1079
868	ev_start ((W)w, ++idlecnt);	1080	ev_start ((W)w, ++idlecnt);
869	array_needsize (idles, idlemax, idlecnt, );	1081	array_needsize (idles, idlemax, idlecnt, );
870	idles [idlecnt - 1] = w;	1082	idles [idlecnt - 1] = w;
871	}	1083	}
872		1084
		1085	void
873	void evidle_stop (struct ev_idle *w)	1086	ev_idle_stop (struct ev_idle *w)
874	{	1087	{
875	ev_clear ((W)w);	1088	ev_clear_pending ((W)w);
876	if (ev_is_active (w))	1089	if (ev_is_active (w))
877	return;	1090	return;
878		1091
879	idles [w->active - 1] = idles [--idlecnt];	1092	idles [w->active - 1] = idles [--idlecnt];
880	ev_stop ((W)w);	1093	ev_stop ((W)w);
881	}	1094	}
882		1095
		1096	void
883	void evprepare_start (struct ev_prepare *w)	1097	ev_prepare_start (struct ev_prepare *w)
884	{	1098	{
885	if (ev_is_active (w))	1099	if (ev_is_active (w))
886	return;	1100	return;
887		1101
888	ev_start ((W)w, ++preparecnt);	1102	ev_start ((W)w, ++preparecnt);
889	array_needsize (prepares, preparemax, preparecnt, );	1103	array_needsize (prepares, preparemax, preparecnt, );
890	prepares [preparecnt - 1] = w;	1104	prepares [preparecnt - 1] = w;
891	}	1105	}
892		1106
		1107	void
893	void evprepare_stop (struct ev_prepare *w)	1108	ev_prepare_stop (struct ev_prepare *w)
894	{	1109	{
895	ev_clear ((W)w);	1110	ev_clear_pending ((W)w);
896	if (ev_is_active (w))	1111	if (ev_is_active (w))
897	return;	1112	return;
898		1113
899	prepares [w->active - 1] = prepares [--preparecnt];	1114	prepares [w->active - 1] = prepares [--preparecnt];
900	ev_stop ((W)w);	1115	ev_stop ((W)w);
901	}	1116	}
902		1117
		1118	void
903	void evcheck_start (struct ev_check *w)	1119	ev_check_start (struct ev_check *w)
904	{	1120	{
905	if (ev_is_active (w))	1121	if (ev_is_active (w))
906	return;	1122	return;
907		1123
908	ev_start ((W)w, ++checkcnt);	1124	ev_start ((W)w, ++checkcnt);
909	array_needsize (checks, checkmax, checkcnt, );	1125	array_needsize (checks, checkmax, checkcnt, );
910	checks [checkcnt - 1] = w;	1126	checks [checkcnt - 1] = w;
911	}	1127	}
912		1128
		1129	void
913	void evcheck_stop (struct ev_check *w)	1130	ev_check_stop (struct ev_check *w)
914	{	1131	{
915	ev_clear ((W)w);	1132	ev_clear_pending ((W)w);
916	if (ev_is_active (w))	1133	if (ev_is_active (w))
917	return;	1134	return;
918		1135
919	checks [w->active - 1] = checks [--checkcnt];	1136	checks [w->active - 1] = checks [--checkcnt];
920	ev_stop ((W)w);	1137	ev_stop ((W)w);
921	}	1138	}
922		1139
		1140	void
923	void evchild_start (struct ev_child *w)	1141	ev_child_start (struct ev_child *w)
924	{	1142	{
925	if (ev_is_active (w))	1143	if (ev_is_active (w))
926	return;	1144	return;
927		1145
928	ev_start ((W)w, 1);	1146	ev_start ((W)w, 1);
929	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1147	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
930	}	1148	}
931		1149
		1150	void
932	void evchild_stop (struct ev_child *w)	1151	ev_child_stop (struct ev_child *w)
933	{	1152	{
934	ev_clear ((W)w);	1153	ev_clear_pending ((W)w);
935	if (ev_is_active (w))	1154	if (ev_is_active (w))
936	return;	1155	return;
937		1156
938	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1157	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
939	ev_stop ((W)w);	1158	ev_stop ((W)w);
…		…
953	once_cb (struct ev_once *once, int revents)	1172	once_cb (struct ev_once *once, int revents)
954	{	1173	{
955	void (cb)(int revents, void arg) = once->cb;	1174	void (cb)(int revents, void arg) = once->cb;
956	void *arg = once->arg;	1175	void *arg = once->arg;
957		1176
958	evio_stop (&once->io);	1177	ev_io_stop (&once->io);
959	evtimer_stop (&once->to);	1178	ev_timer_stop (&once->to);
960	free (once);	1179	free (once);
961		1180
962	cb (revents, arg);	1181	cb (revents, arg);
963	}	1182	}
964		1183
…		…
978	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)
979	{	1198	{
980	struct ev_once *once = malloc (sizeof (struct ev_once));	1199	struct ev_once *once = malloc (sizeof (struct ev_once));
981		1200
982	if (!once)	1201	if (!once)
983	cb (EV_ERROR, arg);	1202	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
984	else	1203	else
985	{	1204	{
986	once->cb = cb;	1205	once->cb = cb;
987	once->arg = arg;	1206	once->arg = arg;
988		1207
989	evw_init (&once->io, once_cb_io);	1208	ev_watcher_init (&once->io, once_cb_io);
990
991	if (fd >= 0)	1209	if (fd >= 0)
992	{	1210	{
993	evio_set (&once->io, fd, events);	1211	ev_io_set (&once->io, fd, events);
994	evio_start (&once->io);	1212	ev_io_start (&once->io);
995	}	1213	}
996		1214
997	evw_init (&once->to, once_cb_to);	1215	ev_watcher_init (&once->to, once_cb_to);
998
999	if (timeout >= 0.)	1216	if (timeout >= 0.)
1000	{	1217	{
1001	evtimer_set (&once->to, timeout, 0.);	1218	ev_timer_set (&once->to, timeout, 0.);
1002	evtimer_start (&once->to);	1219	ev_timer_start (&once->to);
1003	}	1220	}
1004	}	1221	}
1005	}	1222	}
1006		1223
1007	/*****************************************************************************/	1224	/*****************************************************************************/
…		…
1018		1235
1019	static void	1236	static void
1020	ocb (struct ev_timer *w, int revents)	1237	ocb (struct ev_timer *w, int revents)
1021	{	1238	{
1022	//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);
1023	evtimer_stop (w);	1240	ev_timer_stop (w);
1024	evtimer_start (w);	1241	ev_timer_start (w);
1025	}	1242	}
1026		1243
1027	static void	1244	static void
1028	scb (struct ev_signal *w, int revents)	1245	scb (struct ev_signal *w, int revents)
1029	{	1246	{
1030	fprintf (stderr, "signal %x,%d\n", revents, w->signum);	1247	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1031	evio_stop (&wio);	1248	ev_io_stop (&wio);
1032	evio_start (&wio);	1249	ev_io_start (&wio);
1033	}	1250	}
1034		1251
1035	static void	1252	static void
1036	gcb (struct ev_signal *w, int revents)	1253	gcb (struct ev_signal *w, int revents)
1037	{	1254	{
…		…
1041		1258
1042	int main (void)	1259	int main (void)
1043	{	1260	{
1044	ev_init (0);	1261	ev_init (0);
1045		1262
1046	evio_init (&wio, sin_cb, 0, EV_READ);	1263	ev_io_init (&wio, sin_cb, 0, EV_READ);
1047	evio_start (&wio);	1264	ev_io_start (&wio);
1048		1265
1049	struct ev_timer t[10000];	1266	struct ev_timer t[10000];
1050		1267
1051	#if 0	1268	#if 0
1052	int i;	1269	int i;
1053	for (i = 0; i < 10000; ++i)	1270	for (i = 0; i < 10000; ++i)
1054	{	1271	{
1055	struct ev_timer *w = t + i;	1272	struct ev_timer *w = t + i;
1056	evw_init (w, ocb, i);	1273	ev_watcher_init (w, ocb, i);
1057	evtimer_init_abs (w, ocb, drand48 (), 0.99775533);	1274	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1058	evtimer_start (w);	1275	ev_timer_start (w);
1059	if (drand48 () < 0.5)	1276	if (drand48 () < 0.5)
1060	evtimer_stop (w);	1277	ev_timer_stop (w);
1061	}	1278	}
1062	#endif	1279	#endif
1063		1280
1064	struct ev_timer t1;	1281	struct ev_timer t1;
1065	evtimer_init (&t1, ocb, 5, 10);	1282	ev_timer_init (&t1, ocb, 5, 10);
1066	evtimer_start (&t1);	1283	ev_timer_start (&t1);
1067		1284
1068	struct ev_signal sig;	1285	struct ev_signal sig;
1069	evsignal_init (&sig, scb, SIGQUIT);	1286	ev_signal_init (&sig, scb, SIGQUIT);
1070	evsignal_start (&sig);	1287	ev_signal_start (&sig);
1071		1288
1072	struct ev_check cw;	1289	struct ev_check cw;
1073	evcheck_init (&cw, gcb);	1290	ev_check_init (&cw, gcb);
1074	evcheck_start (&cw);	1291	ev_check_start (&cw);
1075		1292
1076	struct ev_idle iw;	1293	struct ev_idle iw;
1077	evidle_init (&iw, gcb);	1294	ev_idle_init (&iw, gcb);
1078	evidle_start (&iw);	1295	ev_idle_start (&iw);
1079		1296
1080	ev_loop (0);	1297	ev_loop (0);
1081		1298
1082	return 0;	1299	return 0;
1083	}	1300	}

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Comparing libev/ev.c (file contents): Revision 1.23 by root, Wed Oct 31 20:10:17 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 1.23 by root, Wed Oct 31 20:10:17 2007 UTC vs.
Revision 1.50 by root, Sat Nov 3 19:41:55 2007 UTC