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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 1.72 by root, Tue Nov 6 16:09:37 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
		34	# if HAVE_CLOCK_GETTIME
		35	# define EV_USE_MONOTONIC 1
		36	# define EV_USE_REALTIME 1
		37	# endif
		38
		39	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		40	# define EV_USE_SELECT 1
		41	# endif
		42
		43	# if HAVE_POLL && HAVE_POLL_H
		44	# define EV_USE_POLL 1
		45	# endif
		46
		47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		48	# define EV_USE_EPOLL 1
		49	# endif
		50
		51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		52	# define EV_USE_KQUEUE 1
		53	# endif
		54
		55	#endif
29		56
30	#include <math.h>	57	#include <math.h>
31	#include <stdlib.h>	58	#include <stdlib.h>
32	#include <unistd.h>
33	#include <fcntl.h>	59	#include <fcntl.h>
34	#include <signal.h>
35	#include <stddef.h>	60	#include <stddef.h>
36		61
37	#include <stdio.h>	62	#include <stdio.h>
38		63
39	#include <assert.h>	64	#include <assert.h>
40	#include <errno.h>	65	#include <errno.h>
41	#include <sys/types.h>	66	#include <sys/types.h>
42	#include <sys/wait.h>
43	#include <sys/time.h>
44	#include <time.h>	67	#include <time.h>
45		68
		69	#include <signal.h>
		70
		71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
		74	# include <sys/wait.h>
		75	#endif
		76	/**/
		77
46	#ifndef HAVE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
47	# ifdef CLOCK_MONOTONIC
48	# define HAVE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
		80	#endif
		81
		82	#ifndef EV_USE_SELECT
		83	# define EV_USE_SELECT 1
		84	#endif
		85
		86	#ifndef EV_USE_POLL
		87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
		88	#endif
		89
		90	#ifndef EV_USE_EPOLL
		91	# define EV_USE_EPOLL 0
		92	#endif
		93
		94	#ifndef EV_USE_KQUEUE
		95	# define EV_USE_KQUEUE 0
		96	#endif
		97
		98	#ifndef EV_USE_WIN32
		99	# ifdef WIN32
		100	# define EV_USE_WIN32 0 /* it does not exist, use select */
		101	# undef EV_USE_SELECT
		102	# define EV_USE_SELECT 1
		103	# else
		104	# define EV_USE_WIN32 0
49	# endif	105	# endif
50	#endif	106	#endif
51		107
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	108	#ifndef EV_USE_REALTIME
61	# define HAVE_REALTIME 1 /* posix requirement, but might be slower */	109	# define EV_USE_REALTIME 1
62	#endif	110	#endif
		111
		112	/**/
		113
		114	#ifndef CLOCK_MONOTONIC
		115	# undef EV_USE_MONOTONIC
		116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
		119	#ifndef CLOCK_REALTIME
		120	# undef EV_USE_REALTIME
		121	# define EV_USE_REALTIME 0
		122	#endif
		123
		124	/**/
63		125
64	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
65	#define MAX_BLOCKTIME 60.	127	#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 */	128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
		129	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
67		130
68	#include "ev.h"	131	#include "ev.h"
		132
		133	#if __GNUC__ >= 3
		134	# define expect(expr,value) __builtin_expect ((expr),(value))
		135	# define inline inline
		136	#else
		137	# define expect(expr,value) (expr)
		138	# define inline static
		139	#endif
		140
		141	#define expect_false(expr) expect ((expr) != 0, 0)
		142	#define expect_true(expr) expect ((expr) != 0, 1)
		143
		144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
69		146
70	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
71	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
72	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
73		150
74	static ev_tstamp now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
75	ev_tstamp ev_now;
76	int ev_method;
77		152
78	static int have_monotonic; /* runtime */	153	#if WIN32
		154	/* note: the comment below could not be substantiated, but what would I care */
		155	/* MSDN says this is required to handle SIGFPE */
		156	volatile double SIGFPE_REQ = 0.0f;
79		157
80	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	158	static int
81	static void (*method_modify)(int fd, int oev, int nev);	159	ev_socketpair_tcp (int filedes [2])
82	static void (*method_poll)(ev_tstamp timeout);	160	{
		161	struct sockaddr_in addr = { 0 };
		162	int addr_size = sizeof (addr);
		163	SOCKET listener;
		164	SOCKET sock [2] = { -1, -1 };
		165
		166	if ((listener = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
		167	return -1;
		168
		169	addr.sin_family = AF_INET;
		170	addr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
		171	addr.sin_port = 0;
		172
		173	if (bind (listener, (struct sockaddr *)&addr, addr_size))
		174	goto fail;
		175
		176	if (getsockname(listener, (struct sockaddr *)&addr, &addr_size))
		177	goto fail;
		178
		179	if (listen (listener, 1))
		180	goto fail;
		181
		182	if ((sock [0] = socket (AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
		183	goto fail;
		184
		185	if (connect (sock[0], (struct sockaddr *)&addr, addr_size))
		186	goto fail;
		187
		188	if ((sock[1] = accept (listener, 0, 0)) < 0)
		189	goto fail;
		190
		191	closesocket (listener);
		192
		193	filedes [0] = sock [0];
		194	filedes [1] = sock [1];
		195
		196	return 0;
		197
		198	fail:
		199	closesocket (listener);
		200
		201	if (sock [0] != INVALID_SOCKET) closesocket (sock [0]);
		202	if (sock [1] != INVALID_SOCKET) closesocket (sock [1]);
		203
		204	return -1;
		205	}
		206
		207	# define ev_pipe(filedes) ev_socketpair_tcp (filedes)
		208	#else
		209	# define ev_pipe(filedes) pipe (filedes)
		210	#endif
83		211
84	/*****************************************************************************/	212	/*****************************************************************************/
85		213
86	ev_tstamp	214	static void (*syserr_cb)(const char *msg);
		215
		216	void ev_set_syserr_cb (void (*cb)(const char *msg))
		217	{
		218	syserr_cb = cb;
		219	}
		220
		221	static void
		222	syserr (const char *msg)
		223	{
		224	if (!msg)
		225	msg = "(libev) system error";
		226
		227	if (syserr_cb)
		228	syserr_cb (msg);
		229	else
		230	{
		231	perror (msg);
		232	abort ();
		233	}
		234	}
		235
		236	static void *(*alloc)(void *ptr, long size);
		237
		238	void ev_set_allocator (void *(*cb)(void *ptr, long size))
		239	{
		240	alloc = cb;
		241	}
		242
		243	static void *
		244	ev_realloc (void *ptr, long size)
		245	{
		246	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		247
		248	if (!ptr && size)
		249	{
		250	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		251	abort ();
		252	}
		253
		254	return ptr;
		255	}
		256
		257	#define ev_malloc(size) ev_realloc (0, (size))
		258	#define ev_free(ptr) ev_realloc ((ptr), 0)
		259
		260	/*****************************************************************************/
		261
		262	typedef struct
		263	{
		264	WL head;
		265	unsigned char events;
		266	unsigned char reify;
		267	} ANFD;
		268
		269	typedef struct
		270	{
		271	W w;
		272	int events;
		273	} ANPENDING;
		274
		275	#if EV_MULTIPLICITY
		276
		277	struct ev_loop
		278	{
		279	# define VAR(name,decl) decl;
		280	# include "ev_vars.h"
		281	};
		282	# undef VAR
		283	# include "ev_wrap.h"
		284
		285	#else
		286
		287	# define VAR(name,decl) static decl;
		288	# include "ev_vars.h"
		289	# undef VAR
		290
		291	#endif
		292
		293	/*****************************************************************************/
		294
		295	inline ev_tstamp
87	ev_time (void)	296	ev_time (void)
88	{	297	{
89	#if HAVE_REALTIME	298	#if EV_USE_REALTIME
90	struct timespec ts;	299	struct timespec ts;
91	clock_gettime (CLOCK_REALTIME, &ts);	300	clock_gettime (CLOCK_REALTIME, &ts);
92	return ts.tv_sec + ts.tv_nsec * 1e-9;	301	return ts.tv_sec + ts.tv_nsec * 1e-9;
93	#else	302	#else
94	struct timeval tv;	303	struct timeval tv;
95	gettimeofday (&tv, 0);	304	gettimeofday (&tv, 0);
96	return tv.tv_sec + tv.tv_usec * 1e-6;	305	return tv.tv_sec + tv.tv_usec * 1e-6;
97	#endif	306	#endif
98	}	307	}
99		308
100	static ev_tstamp	309	inline ev_tstamp
101	get_clock (void)	310	get_clock (void)
102	{	311	{
103	#if HAVE_MONOTONIC	312	#if EV_USE_MONOTONIC
104	if (have_monotonic)	313	if (expect_true (have_monotonic))
105	{	314	{
106	struct timespec ts;	315	struct timespec ts;
107	clock_gettime (CLOCK_MONOTONIC, &ts);	316	clock_gettime (CLOCK_MONOTONIC, &ts);
108	return ts.tv_sec + ts.tv_nsec * 1e-9;	317	return ts.tv_sec + ts.tv_nsec * 1e-9;
109	}	318	}
110	#endif	319	#endif
111		320
112	return ev_time ();	321	return ev_time ();
113	}	322	}
114		323
		324	ev_tstamp
		325	ev_now (EV_P)
		326	{
		327	return rt_now;
		328	}
		329
		330	#define array_roundsize(base,n) ((n) | 4 & ~3)
		331
115	#define array_needsize(base,cur,cnt,init) \	332	#define array_needsize(base,cur,cnt,init) \
116	if ((cnt) > cur) \	333	if (expect_false ((cnt) > cur)) \
117	{ \	334	{ \
118	int newcnt = cur; \	335	int newcnt = cur; \
119	do \	336	do \
120	{ \	337	{ \
121	newcnt = (newcnt << 1) | 4 & ~3; \	338	newcnt = array_roundsize (base, newcnt << 1); \
122	} \	339	} \
123	while ((cnt) > newcnt); \	340	while ((cnt) > newcnt); \
124	\	341	\
125	base = realloc (base, sizeof (*base) * (newcnt)); \	342	base = ev_realloc (base, sizeof (*base) * (newcnt)); \
126	init (base + cur, newcnt - cur); \	343	init (base + cur, newcnt - cur); \
127	cur = newcnt; \	344	cur = newcnt; \
128	}	345	}
		346
		347	#define array_slim(stem) \
		348	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		349	{ \
		350	stem ## max = array_roundsize (stem ## cnt >> 1); \
		351	base = ev_realloc (base, sizeof (*base) * (stem ## max)); \
		352	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
		353	}
		354
		355	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		356	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		357	#define array_free_microshit(stem) \
		358	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		359
		360	#define array_free(stem, idx) \
		361	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
129		362
130	/*****************************************************************************/	363	/*****************************************************************************/
131		364
132	typedef struct
133	{
134	struct ev_io *head;
135	unsigned char wev, rev; /* want, received event set */
136	} ANFD;
137
138	static ANFD *anfds;
139	static int anfdmax;
140
141	static int *fdchanges;
142	static int fdchangemax, fdchangecnt;
143
144	static void	365	static void
145	anfds_init (ANFD *base, int count)	366	anfds_init (ANFD *base, int count)
146	{	367	{
147	while (count--)	368	while (count--)
148	{	369	{
149	base->head = 0;	370	base->head = 0;
150	base->wev = base->rev = EV_NONE;	371	base->events = EV_NONE;
		372	base->reify = 0;
		373
151	++base;	374	++base;
152	}	375	}
153	}	376	}
154		377
155	typedef struct
156	{
157	W w;
158	int events;
159	} ANPENDING;
160
161	static ANPENDING *pendings;
162	static int pendingmax, pendingcnt;
163
164	static void	378	static void
165	event (W w, int events)	379	event (EV_P_ W w, int events)
166	{	380	{
167	if (w->active)	381	if (w->pending)
168	{	382	{
169	w->pending = ++pendingcnt;
170	array_needsize (pendings, pendingmax, pendingcnt, );
171	pendings [pendingcnt - 1].w = w;
172	pendings [pendingcnt - 1].events = events;	383	pendings [ABSPRI (w)][w->pending - 1].events |= events;
		384	return;
173	}	385	}
174	}
175		386
		387	w->pending = ++pendingcnt [ABSPRI (w)];
		388	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
		389	pendings [ABSPRI (w)][w->pending - 1].w = w;
		390	pendings [ABSPRI (w)][w->pending - 1].events = events;
		391	}
		392
176	static void	393	static void
		394	queue_events (EV_P_ W *events, int eventcnt, int type)
		395	{
		396	int i;
		397
		398	for (i = 0; i < eventcnt; ++i)
		399	event (EV_A_ events [i], type);
		400	}
		401
		402	static void
177	fd_event (int fd, int events)	403	fd_event (EV_P_ int fd, int events)
178	{	404	{
179	ANFD *anfd = anfds + fd;	405	ANFD *anfd = anfds + fd;
180	struct ev_io *w;	406	struct ev_io *w;
181		407
182	for (w = anfd->head; w; w = w->next)	408	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
183	{	409	{
184	int ev = w->events & events;	410	int ev = w->events & events;
185		411
186	if (ev)	412	if (ev)
187	event ((W)w, ev);	413	event (EV_A_ (W)w, ev);
188	}	414	}
189	}	415	}
190		416
		417	/*****************************************************************************/
		418
191	static void	419	static void
192	queue_events (W *events, int eventcnt, int type)	420	fd_reify (EV_P)
193	{	421	{
194	int i;	422	int i;
195		423
196	for (i = 0; i < eventcnt; ++i)	424	for (i = 0; i < fdchangecnt; ++i)
197	event (events [i], type);	425	{
		426	int fd = fdchanges [i];
		427	ANFD *anfd = anfds + fd;
		428	struct ev_io *w;
		429
		430	int events = 0;
		431
		432	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
		433	events |= w->events;
		434
		435	anfd->reify = 0;
		436
		437	method_modify (EV_A_ fd, anfd->events, events);
		438	anfd->events = events;
		439	}
		440
		441	fdchangecnt = 0;
		442	}
		443
		444	static void
		445	fd_change (EV_P_ int fd)
		446	{
		447	if (anfds [fd].reify)
		448	return;
		449
		450	anfds [fd].reify = 1;
		451
		452	++fdchangecnt;
		453	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));
		454	fdchanges [fdchangecnt - 1] = fd;
		455	}
		456
		457	static void
		458	fd_kill (EV_P_ int fd)
		459	{
		460	struct ev_io *w;
		461
		462	while ((w = (struct ev_io *)anfds [fd].head))
		463	{
		464	ev_io_stop (EV_A_ w);
		465	event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
		466	}
		467	}
		468
		469	static int
		470	fd_valid (int fd)
		471	{
		472	#ifdef WIN32
		473	return !!win32_get_osfhandle (fd);
		474	#else
		475	return fcntl (fd, F_GETFD) != -1;
		476	#endif
198	}	477	}
199		478
200	/* called on EBADF to verify fds */	479	/* called on EBADF to verify fds */
201	static void	480	static void
202	fd_recheck (void)	481	fd_ebadf (EV_P)
203	{	482	{
204	int fd;	483	int fd;
205		484
206	for (fd = 0; fd < anfdmax; ++fd)	485	for (fd = 0; fd < anfdmax; ++fd)
207	if (anfds [fd].wev)	486	if (anfds [fd].events)
208	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	487	if (!fd_valid (fd) == -1 && errno == EBADF)
209	while (anfds [fd].head)	488	fd_kill (EV_A_ fd);
		489	}
		490
		491	/* called on ENOMEM in select/poll to kill some fds and retry */
		492	static void
		493	fd_enomem (EV_P)
		494	{
		495	int fd;
		496
		497	for (fd = anfdmax; fd--; )
		498	if (anfds [fd].events)
210	{	499	{
211	event ((W)anfds [fd].head, EV_ERROR);	500	fd_kill (EV_A_ fd);
212	evio_stop (anfds [fd].head);	501	return;
213	}	502	}
		503	}
		504
		505	/* usually called after fork if method needs to re-arm all fds from scratch */
		506	static void
		507	fd_rearm_all (EV_P)
		508	{
		509	int fd;
		510
		511	/* this should be highly optimised to not do anything but set a flag */
		512	for (fd = 0; fd < anfdmax; ++fd)
		513	if (anfds [fd].events)
		514	{
		515	anfds [fd].events = 0;
		516	fd_change (EV_A_ fd);
		517	}
214	}	518	}
215		519
216	/*****************************************************************************/	520	/*****************************************************************************/
217		521
218	static struct ev_timer **timers;
219	static int timermax, timercnt;
220
221	static struct ev_periodic **periodics;
222	static int periodicmax, periodiccnt;
223
224	static void	522	static void
225	upheap (WT *timers, int k)	523	upheap (WT *heap, int k)
226	{	524	{
227	WT w = timers [k];	525	WT w = heap [k];
228		526
229	while (k && timers [k >> 1]->at > w->at)	527	while (k && heap [k >> 1]->at > w->at)
230	{	528	{
231	timers [k] = timers [k >> 1];	529	heap [k] = heap [k >> 1];
232	timers [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
233	k >>= 1;	531	k >>= 1;
234	}	532	}
235		533
236	timers [k] = w;	534	heap [k] = w;
237	timers [k]->active = k + 1;	535	((W)heap [k])->active = k + 1;
238		536
239	}	537	}
240		538
241	static void	539	static void
242	downheap (WT *timers, int N, int k)	540	downheap (WT *heap, int N, int k)
243	{	541	{
244	WT w = timers [k];	542	WT w = heap [k];
245		543
246	while (k < (N >> 1))	544	while (k < (N >> 1))
247	{	545	{
248	int j = k << 1;	546	int j = k << 1;
249		547
250	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	548	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
251	++j;	549	++j;
252		550
253	if (w->at <= timers [j]->at)	551	if (w->at <= heap [j]->at)
254	break;	552	break;
255		553
256	timers [k] = timers [j];	554	heap [k] = heap [j];
257	timers [k]->active = k + 1;	555	((W)heap [k])->active = k + 1;
258	k = j;	556	k = j;
259	}	557	}
260		558
261	timers [k] = w;	559	heap [k] = w;
262	timers [k]->active = k + 1;	560	((W)heap [k])->active = k + 1;
263	}	561	}
264		562
265	/*****************************************************************************/	563	/*****************************************************************************/
266		564
267	typedef struct	565	typedef struct
268	{	566	{
269	struct ev_signal *head;	567	WL head;
270	sig_atomic_t gotsig;	568	sig_atomic_t volatile gotsig;
271	} ANSIG;	569	} ANSIG;
272		570
273	static ANSIG *signals;	571	static ANSIG *signals;
274	static int signalmax;	572	static int signalmax;
275		573
276	static int sigpipe [2];	574	static int sigpipe [2];
277	static sig_atomic_t gotsig;	575	static sig_atomic_t volatile gotsig;
278	static struct ev_io sigev;	576	static struct ev_io sigev;
279		577
280	static void	578	static void
281	signals_init (ANSIG *base, int count)	579	signals_init (ANSIG *base, int count)
282	{	580	{
283	while (count--)	581	while (count--)
284	{	582	{
285	base->head = 0;	583	base->head = 0;
286	base->gotsig = 0;	584	base->gotsig = 0;
		585
287	++base;	586	++base;
288	}	587	}
289	}	588	}
290		589
291	static void	590	static void
292	sighandler (int signum)	591	sighandler (int signum)
293	{	592	{
		593	#if WIN32
		594	signal (signum, sighandler);
		595	#endif
		596
294	signals [signum - 1].gotsig = 1;	597	signals [signum - 1].gotsig = 1;
295		598
296	if (!gotsig)	599	if (!gotsig)
297	{	600	{
		601	int old_errno = errno;
298	gotsig = 1;	602	gotsig = 1;
299	write (sigpipe [1], &gotsig, 1);	603	write (sigpipe [1], &signum, 1);
		604	errno = old_errno;
300	}	605	}
301	}	606	}
302		607
303	static void	608	static void
304	sigcb (struct ev_io *iow, int revents)	609	sigcb (EV_P_ struct ev_io *iow, int revents)
305	{	610	{
306	struct ev_signal *w;	611	WL w;
307	int sig;	612	int signum;
308		613
		614	read (sigpipe [0], &revents, 1);
309	gotsig = 0;	615	gotsig = 0;
310	read (sigpipe [0], &revents, 1);
311		616
312	for (sig = signalmax; sig--; )	617	for (signum = signalmax; signum--; )
313	if (signals [sig].gotsig)	618	if (signals [signum].gotsig)
314	{	619	{
315	signals [sig].gotsig = 0;	620	signals [signum].gotsig = 0;
316		621
317	for (w = signals [sig].head; w; w = w->next)	622	for (w = signals [signum].head; w; w = w->next)
318	event ((W)w, EV_SIGNAL);	623	event (EV_A_ (W)w, EV_SIGNAL);
319	}	624	}
320	}	625	}
321		626
322	static void	627	static void
323	siginit (void)	628	siginit (EV_P)
324	{	629	{
		630	#ifndef WIN32
325	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	631	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
326	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	632	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
327		633
328	/* rather than sort out wether we really need nb, set it */	634	/* rather than sort out wether we really need nb, set it */
329	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	635	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
330	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	636	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		637	#endif
331		638
332	evio_set (&sigev, sigpipe [0], EV_READ);	639	ev_io_set (&sigev, sigpipe [0], EV_READ);
333	evio_start (&sigev);	640	ev_io_start (EV_A_ &sigev);
		641	ev_unref (EV_A); /* child watcher should not keep loop alive */
334	}	642	}
335		643
336	/*****************************************************************************/	644	/*****************************************************************************/
337		645
338	static struct ev_idle **idles;
339	static int idlemax, idlecnt;
340
341	static struct ev_prepare **prepares;
342	static int preparemax, preparecnt;
343
344	static struct ev_check **checks;
345	static int checkmax, checkcnt;
346
347	/*****************************************************************************/
348
349	static struct ev_child *childs [PID_HASHSIZE];	646	static struct ev_child *childs [PID_HASHSIZE];
		647
		648	#ifndef WIN32
		649
350	static struct ev_signal childev;	650	static struct ev_signal childev;
351		651
352	#ifndef WCONTINUED	652	#ifndef WCONTINUED
353	# define WCONTINUED 0	653	# define WCONTINUED 0
354	#endif	654	#endif
355		655
356	static void	656	static void
357	childcb (struct ev_signal *sw, int revents)	657	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
358	{	658	{
359	struct ev_child *w;	659	struct ev_child *w;
		660
		661	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
		662	if (w->pid == pid || !w->pid)
		663	{
		664	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
		665	w->rpid = pid;
		666	w->rstatus = status;
		667	event (EV_A_ (W)w, EV_CHILD);
		668	}
		669	}
		670
		671	static void
		672	childcb (EV_P_ struct ev_signal *sw, int revents)
		673	{
360	int pid, status;	674	int pid, status;
361		675
362	while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1)	676	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
363	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	677	{
364	if (w->pid == pid || w->pid == -1)	678	/* make sure we are called again until all childs have been reaped */
365	{	679	event (EV_A_ (W)sw, EV_SIGNAL);
366	w->status = status;	680
367	event ((W)w, EV_CHILD);	681	child_reap (EV_A_ sw, pid, pid, status);
368	}	682	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		683	}
369	}	684	}
		685
		686	#endif
370		687
371	/*****************************************************************************/	688	/*****************************************************************************/
372		689
		690	#if EV_USE_KQUEUE
		691	# include "ev_kqueue.c"
		692	#endif
373	#if HAVE_EPOLL	693	#if EV_USE_EPOLL
374	# include "ev_epoll.c"	694	# include "ev_epoll.c"
375	#endif	695	#endif
		696	#if EV_USE_POLL
		697	# include "ev_poll.c"
		698	#endif
376	#if HAVE_SELECT	699	#if EV_USE_SELECT
377	# include "ev_select.c"	700	# include "ev_select.c"
378	#endif	701	#endif
379		702
380	int	703	int
381	ev_version_major (void)	704	ev_version_major (void)
…		…
387	ev_version_minor (void)	710	ev_version_minor (void)
388	{	711	{
389	return EV_VERSION_MINOR;	712	return EV_VERSION_MINOR;
390	}	713	}
391		714
392	int ev_init (int flags)	715	/* return true if we are running with elevated privileges and should ignore env variables */
		716	static int
		717	enable_secure (void)
393	{	718	{
		719	#ifdef WIN32
		720	return 0;
		721	#else
		722	return getuid () != geteuid ()
		723	|| getgid () != getegid ();
		724	#endif
		725	}
		726
		727	int
		728	ev_method (EV_P)
		729	{
		730	return method;
		731	}
		732
		733	static void
		734	loop_init (EV_P_ int methods)
		735	{
394	if (!ev_method)	736	if (!method)
395	{	737	{
396	#if HAVE_MONOTONIC	738	#if EV_USE_MONOTONIC
397	{	739	{
398	struct timespec ts;	740	struct timespec ts;
399	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	741	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
400	have_monotonic = 1;	742	have_monotonic = 1;
401	}	743	}
402	#endif	744	#endif
403		745
404	ev_now = ev_time ();	746	rt_now = ev_time ();
405	now = get_clock ();	747	mn_now = get_clock ();
		748	now_floor = mn_now;
406	diff = ev_now - now;	749	rtmn_diff = rt_now - mn_now;
407		750
		751	if (methods == EVMETHOD_AUTO)
		752	if (!enable_secure () && getenv ("LIBEV_METHODS"))
		753	methods = atoi (getenv ("LIBEV_METHODS"));
		754	else
		755	methods = EVMETHOD_ANY;
		756
		757	method = 0;
		758	#if EV_USE_WIN32
		759	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		760	#endif
		761	#if EV_USE_KQUEUE
		762	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		763	#endif
		764	#if EV_USE_EPOLL
		765	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		766	#endif
		767	#if EV_USE_POLL
		768	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
		769	#endif
		770	#if EV_USE_SELECT
		771	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
		772	#endif
		773
		774	ev_watcher_init (&sigev, sigcb);
		775	ev_set_priority (&sigev, EV_MAXPRI);
		776	}
		777	}
		778
		779	void
		780	loop_destroy (EV_P)
		781	{
		782	int i;
		783
		784	#if EV_USE_WIN32
		785	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		786	#endif
		787	#if EV_USE_KQUEUE
		788	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		789	#endif
		790	#if EV_USE_EPOLL
		791	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		792	#endif
		793	#if EV_USE_POLL
		794	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		795	#endif
		796	#if EV_USE_SELECT
		797	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		798	#endif
		799
		800	for (i = NUMPRI; i--; )
		801	array_free (pending, [i]);
		802
		803	/* have to use the microsoft-never-gets-it-right macro */
		804	array_free_microshit (fdchange);
		805	array_free_microshit (timer);
		806	array_free_microshit (periodic);
		807	array_free_microshit (idle);
		808	array_free_microshit (prepare);
		809	array_free_microshit (check);
		810
		811	method = 0;
		812	}
		813
		814	static void
		815	loop_fork (EV_P)
		816	{
		817	#if EV_USE_EPOLL
		818	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		819	#endif
		820	#if EV_USE_KQUEUE
		821	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		822	#endif
		823
		824	if (ev_is_active (&sigev))
		825	{
		826	/* default loop */
		827
		828	ev_ref (EV_A);
		829	ev_io_stop (EV_A_ &sigev);
		830	close (sigpipe [0]);
		831	close (sigpipe [1]);
		832
		833	while (ev_pipe (sigpipe))
		834	syserr ("(libev) error creating pipe");
		835
		836	siginit (EV_A);
		837	}
		838
		839	postfork = 0;
		840	}
		841
		842	#if EV_MULTIPLICITY
		843	struct ev_loop *
		844	ev_loop_new (int methods)
		845	{
		846	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
		847
		848	memset (loop, 0, sizeof (struct ev_loop));
		849
		850	loop_init (EV_A_ methods);
		851
		852	if (ev_method (EV_A))
		853	return loop;
		854
		855	return 0;
		856	}
		857
		858	void
		859	ev_loop_destroy (EV_P)
		860	{
		861	loop_destroy (EV_A);
		862	ev_free (loop);
		863	}
		864
		865	void
		866	ev_loop_fork (EV_P)
		867	{
		868	postfork = 1;
		869	}
		870
		871	#endif
		872
		873	#if EV_MULTIPLICITY
		874	struct ev_loop default_loop_struct;
		875	static struct ev_loop *default_loop;
		876
		877	struct ev_loop *
		878	#else
		879	static int default_loop;
		880
		881	int
		882	#endif
		883	ev_default_loop (int methods)
		884	{
		885	if (sigpipe [0] == sigpipe [1])
408	if (pipe (sigpipe))	886	if (ev_pipe (sigpipe))
409	return 0;	887	return 0;
410		888
411	ev_method = EVMETHOD_NONE;	889	if (!default_loop)
412	#if HAVE_EPOLL	890	{
413	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	891	#if EV_MULTIPLICITY
		892	struct ev_loop *loop = default_loop = &default_loop_struct;
		893	#else
		894	default_loop = 1;
414	#endif	895	#endif
415	#if HAVE_SELECT
416	if (ev_method == EVMETHOD_NONE) select_init (flags);
417	#endif
418		896
		897	loop_init (EV_A_ methods);
		898
419	if (ev_method)	899	if (ev_method (EV_A))
420	{	900	{
421	evw_init (&sigev, sigcb);
422	siginit ();	901	siginit (EV_A);
423		902
		903	#ifndef WIN32
424	evsignal_init (&childev, childcb, SIGCHLD);	904	ev_signal_init (&childev, childcb, SIGCHLD);
		905	ev_set_priority (&childev, EV_MAXPRI);
425	evsignal_start (&childev);	906	ev_signal_start (EV_A_ &childev);
		907	ev_unref (EV_A); /* child watcher should not keep loop alive */
		908	#endif
426	}	909	}
		910	else
		911	default_loop = 0;
427	}	912	}
428		913
429	return ev_method;	914	return default_loop;
		915	}
		916
		917	void
		918	ev_default_destroy (void)
		919	{
		920	#if EV_MULTIPLICITY
		921	struct ev_loop *loop = default_loop;
		922	#endif
		923
		924	#ifndef WIN32
		925	ev_ref (EV_A); /* child watcher */
		926	ev_signal_stop (EV_A_ &childev);
		927	#endif
		928
		929	ev_ref (EV_A); /* signal watcher */
		930	ev_io_stop (EV_A_ &sigev);
		931
		932	close (sigpipe [0]); sigpipe [0] = 0;
		933	close (sigpipe [1]); sigpipe [1] = 0;
		934
		935	loop_destroy (EV_A);
		936	}
		937
		938	void
		939	ev_default_fork (void)
		940	{
		941	#if EV_MULTIPLICITY
		942	struct ev_loop *loop = default_loop;
		943	#endif
		944
		945	if (method)
		946	postfork = 1;
430	}	947	}
431		948
432	/*****************************************************************************/	949	/*****************************************************************************/
433		950
434	void
435	ev_prefork (void)
436	{
437	/* nop */
438	}
439
440	void
441	ev_postfork_parent (void)
442	{
443	/* nop */
444	}
445
446	void
447	ev_postfork_child (void)
448	{
449	#if HAVE_EPOLL
450	if (ev_method == EVMETHOD_EPOLL)
451	epoll_postfork_child ();
452	#endif
453
454	evio_stop (&sigev);
455	close (sigpipe [0]);
456	close (sigpipe [1]);
457	pipe (sigpipe);
458	siginit ();
459	}
460
461	/*****************************************************************************/
462
463	static void	951	static void
464	fd_reify (void)	952	call_pending (EV_P)
465	{	953	{
466	int i;	954	int pri;
467		955
468	for (i = 0; i < fdchangecnt; ++i)	956	for (pri = NUMPRI; pri--; )
469	{	957	while (pendingcnt [pri])
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	{	958	{
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)
491	{
492	while (pendingcnt)
493	{
494	ANPENDING *p = pendings + --pendingcnt;	959	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
495		960
496	if (p->w)	961	if (p->w)
497	{	962	{
498	p->w->pending = 0;	963	p->w->pending = 0;
499	p->w->cb (p->w, p->events);	964	p->w->cb (EV_A_ p->w, p->events);
500	}	965	}
501	}	966	}
502	}	967	}
503		968
504	static void	969	static void
505	timers_reify (void)	970	timers_reify (EV_P)
506	{	971	{
507	while (timercnt && timers [0]->at <= now)	972	while (timercnt && ((WT)timers [0])->at <= mn_now)
508	{	973	{
509	struct ev_timer *w = timers [0];	974	struct ev_timer *w = timers [0];
510		975
511	event ((W)w, EV_TIMEOUT);	976	assert (("inactive timer on timer heap detected", ev_is_active (w)));
512		977
513	/* first reschedule or stop timer */	978	/* first reschedule or stop timer */
514	if (w->repeat)	979	if (w->repeat)
515	{	980	{
		981	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
516	w->at = now + w->repeat;	982	((WT)w)->at = mn_now + w->repeat;
517	assert (("timer timeout in the past, negative repeat?", w->at > now));
518	downheap ((WT *)timers, timercnt, 0);	983	downheap ((WT *)timers, timercnt, 0);
519	}	984	}
520	else	985	else
521	evtimer_stop (w); /* nonrepeating: stop timer */	986	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
522	}
523	}
524		987
		988	event (EV_A_ (W)w, EV_TIMEOUT);
		989	}
		990	}
		991
525	static void	992	static void
526	periodics_reify (void)	993	periodics_reify (EV_P)
527	{	994	{
528	while (periodiccnt && periodics [0]->at <= ev_now)	995	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
529	{	996	{
530	struct ev_periodic *w = periodics [0];	997	struct ev_periodic *w = periodics [0];
		998
		999	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
531		1000
532	/* first reschedule or stop timer */	1001	/* first reschedule or stop timer */
533	if (w->interval)	1002	if (w->interval)
534	{	1003	{
535	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1004	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
536	assert (("periodic timeout in the past, negative interval?", w->at > ev_now));	1005	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
537	downheap ((WT *)periodics, periodiccnt, 0);	1006	downheap ((WT *)periodics, periodiccnt, 0);
538	}	1007	}
539	else	1008	else
540	evperiodic_stop (w); /* nonrepeating: stop timer */	1009	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
541		1010
542	event ((W)w, EV_TIMEOUT);	1011	event (EV_A_ (W)w, EV_PERIODIC);
543	}	1012	}
544	}	1013	}
545		1014
546	static void	1015	static void
547	periodics_reschedule (ev_tstamp diff)	1016	periodics_reschedule (EV_P)
548	{	1017	{
549	int i;	1018	int i;
550		1019
551	/* adjust periodics after time jump */	1020	/* adjust periodics after time jump */
552	for (i = 0; i < periodiccnt; ++i)	1021	for (i = 0; i < periodiccnt; ++i)
553	{	1022	{
554	struct ev_periodic *w = periodics [i];	1023	struct ev_periodic *w = periodics [i];
555		1024
556	if (w->interval)	1025	if (w->interval)
557	{	1026	{
558	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1027	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
559		1028
560	if (fabs (diff) >= 1e-4)	1029	if (fabs (diff) >= 1e-4)
561	{	1030	{
562	evperiodic_stop (w);	1031	ev_periodic_stop (EV_A_ w);
563	evperiodic_start (w);	1032	ev_periodic_start (EV_A_ w);
564		1033
565	i = 0; /* restart loop, inefficient, but time jumps should be rare */	1034	i = 0; /* restart loop, inefficient, but time jumps should be rare */
566	}	1035	}
567	}	1036	}
568	}	1037	}
569	}	1038	}
570		1039
		1040	inline int
		1041	time_update_monotonic (EV_P)
		1042	{
		1043	mn_now = get_clock ();
		1044
		1045	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
		1046	{
		1047	rt_now = rtmn_diff + mn_now;
		1048	return 0;
		1049	}
		1050	else
		1051	{
		1052	now_floor = mn_now;
		1053	rt_now = ev_time ();
		1054	return 1;
		1055	}
		1056	}
		1057
571	static void	1058	static void
572	time_update (void)	1059	time_update (EV_P)
573	{	1060	{
574	int i;	1061	int i;
575		1062
576	ev_now = ev_time ();	1063	#if EV_USE_MONOTONIC
577
578	if (have_monotonic)	1064	if (expect_true (have_monotonic))
579	{	1065	{
580	ev_tstamp odiff = diff;	1066	if (time_update_monotonic (EV_A))
581
582	for (i = 4; --i; ) /* loop a few times, before making important decisions */
583	{	1067	{
584	now = get_clock ();	1068	ev_tstamp odiff = rtmn_diff;
		1069
		1070	for (i = 4; --i; ) /* loop a few times, before making important decisions */
		1071	{
585	diff = ev_now - now;	1072	rtmn_diff = rt_now - mn_now;
586		1073
587	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1074	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
588	return; /* all is well */	1075	return; /* all is well */
589		1076
590	ev_now = ev_time ();	1077	rt_now = ev_time ();
		1078	mn_now = get_clock ();
		1079	now_floor = mn_now;
		1080	}
		1081
		1082	periodics_reschedule (EV_A);
		1083	/* no timer adjustment, as the monotonic clock doesn't jump */
		1084	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
591	}	1085	}
592
593	periodics_reschedule (diff - odiff);
594	/* no timer adjustment, as the monotonic clock doesn't jump */
595	}	1086	}
596	else	1087	else
		1088	#endif
597	{	1089	{
598	if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)	1090	rt_now = ev_time ();
		1091
		1092	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
599	{	1093	{
600	periodics_reschedule (ev_now - now);	1094	periodics_reschedule (EV_A);
601		1095
602	/* adjust timers. this is easy, as the offset is the same for all */	1096	/* adjust timers. this is easy, as the offset is the same for all */
603	for (i = 0; i < timercnt; ++i)	1097	for (i = 0; i < timercnt; ++i)
604	timers [i]->at += diff;	1098	((WT)timers [i])->at += rt_now - mn_now;
605	}	1099	}
606		1100
607	now = ev_now;	1101	mn_now = rt_now;
608	}	1102	}
609	}	1103	}
610		1104
611	int ev_loop_done;	1105	void
		1106	ev_ref (EV_P)
		1107	{
		1108	++activecnt;
		1109	}
612		1110
		1111	void
		1112	ev_unref (EV_P)
		1113	{
		1114	--activecnt;
		1115	}
		1116
		1117	static int loop_done;
		1118
		1119	void
613	void ev_loop (int flags)	1120	ev_loop (EV_P_ int flags)
614	{	1121	{
615	double block;	1122	double block;
616	ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1123	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
617		1124
618	do	1125	do
619	{	1126	{
620	/* queue check watchers (and execute them) */	1127	/* queue check watchers (and execute them) */
621	if (preparecnt)	1128	if (expect_false (preparecnt))
622	{	1129	{
623	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1130	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
624	call_pending ();	1131	call_pending (EV_A);
625	}	1132	}
626		1133
		1134	/* we might have forked, so reify kernel state if necessary */
		1135	if (expect_false (postfork))
		1136	loop_fork (EV_A);
		1137
627	/* update fd-related kernel structures */	1138	/* update fd-related kernel structures */
628	fd_reify ();	1139	fd_reify (EV_A);
629		1140
630	/* calculate blocking time */	1141	/* calculate blocking time */
631		1142
632	/* we only need this for !monotonic clockor timers, but as we basically	1143	/* we only need this for !monotonic clockor timers, but as we basically
633	always have timers, we just calculate it always */	1144	always have timers, we just calculate it always */
		1145	#if EV_USE_MONOTONIC
		1146	if (expect_true (have_monotonic))
		1147	time_update_monotonic (EV_A);
		1148	else
		1149	#endif
		1150	{
634	ev_now = ev_time ();	1151	rt_now = ev_time ();
		1152	mn_now = rt_now;
		1153	}
635		1154
636	if (flags & EVLOOP_NONBLOCK || idlecnt)	1155	if (flags & EVLOOP_NONBLOCK || idlecnt)
637	block = 0.;	1156	block = 0.;
638	else	1157	else
639	{	1158	{
640	block = MAX_BLOCKTIME;	1159	block = MAX_BLOCKTIME;
641		1160
642	if (timercnt)	1161	if (timercnt)
643	{	1162	{
644	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	1163	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
645	if (block > to) block = to;	1164	if (block > to) block = to;
646	}	1165	}
647		1166
648	if (periodiccnt)	1167	if (periodiccnt)
649	{	1168	{
650	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1169	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
651	if (block > to) block = to;	1170	if (block > to) block = to;
652	}	1171	}
653		1172
654	if (block < 0.) block = 0.;	1173	if (block < 0.) block = 0.;
655	}	1174	}
656		1175
657	method_poll (block);	1176	method_poll (EV_A_ block);
658		1177
659	/* update ev_now, do magic */	1178	/* update rt_now, do magic */
660	time_update ();	1179	time_update (EV_A);
661		1180
662	/* queue pending timers and reschedule them */	1181	/* queue pending timers and reschedule them */
663	timers_reify (); /* relative timers called last */	1182	timers_reify (EV_A); /* relative timers called last */
664	periodics_reify (); /* absolute timers called first */	1183	periodics_reify (EV_A); /* absolute timers called first */
665		1184
666	/* queue idle watchers unless io or timers are pending */	1185	/* queue idle watchers unless io or timers are pending */
667	if (!pendingcnt)	1186	if (!pendingcnt)
668	queue_events ((W *)idles, idlecnt, EV_IDLE);	1187	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
669		1188
670	/* queue check watchers, to be executed first */	1189	/* queue check watchers, to be executed first */
671	if (checkcnt)	1190	if (checkcnt)
672	queue_events ((W *)checks, checkcnt, EV_CHECK);	1191	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
673		1192
674	call_pending ();	1193	call_pending (EV_A);
675	}	1194	}
676	while (!ev_loop_done);	1195	while (activecnt && !loop_done);
677		1196
678	if (ev_loop_done != 2)	1197	if (loop_done != 2)
679	ev_loop_done = 0;	1198	loop_done = 0;
		1199	}
		1200
		1201	void
		1202	ev_unloop (EV_P_ int how)
		1203	{
		1204	loop_done = how;
680	}	1205	}
681		1206
682	/*****************************************************************************/	1207	/*****************************************************************************/
683		1208
684	static void	1209	inline void
685	wlist_add (WL *head, WL elem)	1210	wlist_add (WL *head, WL elem)
686	{	1211	{
687	elem->next = *head;	1212	elem->next = *head;
688	*head = elem;	1213	*head = elem;
689	}	1214	}
690		1215
691	static void	1216	inline void
692	wlist_del (WL *head, WL elem)	1217	wlist_del (WL *head, WL elem)
693	{	1218	{
694	while (*head)	1219	while (*head)
695	{	1220	{
696	if (*head == elem)	1221	if (*head == elem)
…		…
701		1226
702	head = &(*head)->next;	1227	head = &(*head)->next;
703	}	1228	}
704	}	1229	}
705		1230
706	static void	1231	inline void
707	ev_clear (W w)	1232	ev_clear_pending (EV_P_ W w)
708	{	1233	{
709	if (w->pending)	1234	if (w->pending)
710	{	1235	{
711	pendings [w->pending - 1].w = 0;	1236	pendings [ABSPRI (w)][w->pending - 1].w = 0;
712	w->pending = 0;	1237	w->pending = 0;
713	}	1238	}
714	}	1239	}
715		1240
716	static void	1241	inline void
717	ev_start (W w, int active)	1242	ev_start (EV_P_ W w, int active)
718	{	1243	{
		1244	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1245	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1246
719	w->active = active;	1247	w->active = active;
		1248	ev_ref (EV_A);
720	}	1249	}
721		1250
722	static void	1251	inline void
723	ev_stop (W w)	1252	ev_stop (EV_P_ W w)
724	{	1253	{
		1254	ev_unref (EV_A);
725	w->active = 0;	1255	w->active = 0;
726	}	1256	}
727		1257
728	/*****************************************************************************/	1258	/*****************************************************************************/
729		1259
730	void	1260	void
731	evio_start (struct ev_io *w)	1261	ev_io_start (EV_P_ struct ev_io *w)
732	{	1262	{
		1263	int fd = w->fd;
		1264
733	if (ev_is_active (w))	1265	if (ev_is_active (w))
734	return;	1266	return;
735		1267
736	int fd = w->fd;	1268	assert (("ev_io_start called with negative fd", fd >= 0));
737		1269
738	ev_start ((W)w, 1);	1270	ev_start (EV_A_ (W)w, 1);
739	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1271	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
740	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1272	wlist_add ((WL *)&anfds[fd].head, (WL)w);
741		1273
742	++fdchangecnt;	1274	fd_change (EV_A_ 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	}	1275	}
749		1276
750	void	1277	void
751	evio_stop (struct ev_io *w)	1278	ev_io_stop (EV_P_ struct ev_io *w)
752	{	1279	{
753	if (w->fd == 9)	1280	ev_clear_pending (EV_A_ (W)w);
754	printf ("stop %p:%x\n", w, w->events);//D
755	ev_clear ((W)w);
756	if (!ev_is_active (w))	1281	if (!ev_is_active (w))
757	return;	1282	return;
758		1283
759	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1284	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
760	ev_stop ((W)w);	1285	ev_stop (EV_A_ (W)w);
761		1286
762	++fdchangecnt;	1287	fd_change (EV_A_ w->fd);
763	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
764	fdchanges [fdchangecnt - 1] = w->fd;
765	}	1288	}
766		1289
767	void	1290	void
768	evtimer_start (struct ev_timer *w)	1291	ev_timer_start (EV_P_ struct ev_timer *w)
769	{	1292	{
770	if (ev_is_active (w))	1293	if (ev_is_active (w))
771	return;	1294	return;
772		1295
773	w->at += now;	1296	((WT)w)->at += mn_now;
774		1297
775	assert (("timer repeat value less than zero not allowed", w->repeat >= 0.));	1298	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
776		1299
777	ev_start ((W)w, ++timercnt);	1300	ev_start (EV_A_ (W)w, ++timercnt);
778	array_needsize (timers, timermax, timercnt, );	1301	array_needsize (timers, timermax, timercnt, (void));
779	timers [timercnt - 1] = w;	1302	timers [timercnt - 1] = w;
780	upheap ((WT *)timers, timercnt - 1);	1303	upheap ((WT *)timers, timercnt - 1);
781	}
782		1304
		1305	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1306	}
		1307
783	void	1308	void
784	evtimer_stop (struct ev_timer *w)	1309	ev_timer_stop (EV_P_ struct ev_timer *w)
785	{	1310	{
786	ev_clear ((W)w);	1311	ev_clear_pending (EV_A_ (W)w);
787	if (!ev_is_active (w))	1312	if (!ev_is_active (w))
788	return;	1313	return;
789		1314
		1315	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1316
790	if (w->active < timercnt--)	1317	if (((W)w)->active < timercnt--)
791	{	1318	{
792	timers [w->active - 1] = timers [timercnt];	1319	timers [((W)w)->active - 1] = timers [timercnt];
793	downheap ((WT *)timers, timercnt, w->active - 1);	1320	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
794	}	1321	}
795		1322
796	w->at = w->repeat;	1323	((WT)w)->at = w->repeat;
797		1324
798	ev_stop ((W)w);	1325	ev_stop (EV_A_ (W)w);
799	}	1326	}
800		1327
801	void	1328	void
802	evtimer_again (struct ev_timer *w)	1329	ev_timer_again (EV_P_ struct ev_timer *w)
803	{	1330	{
804	if (ev_is_active (w))	1331	if (ev_is_active (w))
805	{	1332	{
806	if (w->repeat)	1333	if (w->repeat)
807	{	1334	{
808	w->at = now + w->repeat;	1335	((WT)w)->at = mn_now + w->repeat;
809	downheap ((WT *)timers, timercnt, w->active - 1);	1336	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
810	}	1337	}
811	else	1338	else
812	evtimer_stop (w);	1339	ev_timer_stop (EV_A_ w);
813	}	1340	}
814	else if (w->repeat)	1341	else if (w->repeat)
815	evtimer_start (w);	1342	ev_timer_start (EV_A_ w);
816	}	1343	}
817		1344
818	void	1345	void
819	evperiodic_start (struct ev_periodic *w)	1346	ev_periodic_start (EV_P_ struct ev_periodic *w)
820	{	1347	{
821	if (ev_is_active (w))	1348	if (ev_is_active (w))
822	return;	1349	return;
823		1350
824	assert (("periodic interval value less than zero not allowed", w->interval >= 0.));	1351	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
825		1352
826	/* this formula differs from the one in periodic_reify because we do not always round up */	1353	/* this formula differs from the one in periodic_reify because we do not always round up */
827	if (w->interval)	1354	if (w->interval)
828	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1355	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
829		1356
830	ev_start ((W)w, ++periodiccnt);	1357	ev_start (EV_A_ (W)w, ++periodiccnt);
831	array_needsize (periodics, periodicmax, periodiccnt, );	1358	array_needsize (periodics, periodicmax, periodiccnt, (void));
832	periodics [periodiccnt - 1] = w;	1359	periodics [periodiccnt - 1] = w;
833	upheap ((WT *)periodics, periodiccnt - 1);	1360	upheap ((WT *)periodics, periodiccnt - 1);
834	}
835		1361
		1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1363	}
		1364
836	void	1365	void
837	evperiodic_stop (struct ev_periodic *w)	1366	ev_periodic_stop (EV_P_ struct ev_periodic *w)
838	{	1367	{
839	ev_clear ((W)w);	1368	ev_clear_pending (EV_A_ (W)w);
840	if (!ev_is_active (w))	1369	if (!ev_is_active (w))
841	return;	1370	return;
842		1371
		1372	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1373
843	if (w->active < periodiccnt--)	1374	if (((W)w)->active < periodiccnt--)
844	{	1375	{
845	periodics [w->active - 1] = periodics [periodiccnt];	1376	periodics [((W)w)->active - 1] = periodics [periodiccnt];
846	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1377	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
847	}	1378	}
848		1379
849	ev_stop ((W)w);	1380	ev_stop (EV_A_ (W)w);
850	}	1381	}
851		1382
852	void	1383	void
853	evsignal_start (struct ev_signal *w)	1384	ev_idle_start (EV_P_ struct ev_idle *w)
854	{	1385	{
855	if (ev_is_active (w))	1386	if (ev_is_active (w))
856	return;	1387	return;
857		1388
		1389	ev_start (EV_A_ (W)w, ++idlecnt);
		1390	array_needsize (idles, idlemax, idlecnt, (void));
		1391	idles [idlecnt - 1] = w;
		1392	}
		1393
		1394	void
		1395	ev_idle_stop (EV_P_ struct ev_idle *w)
		1396	{
		1397	ev_clear_pending (EV_A_ (W)w);
		1398	if (ev_is_active (w))
		1399	return;
		1400
		1401	idles [((W)w)->active - 1] = idles [--idlecnt];
		1402	ev_stop (EV_A_ (W)w);
		1403	}
		1404
		1405	void
		1406	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1407	{
		1408	if (ev_is_active (w))
		1409	return;
		1410
		1411	ev_start (EV_A_ (W)w, ++preparecnt);
		1412	array_needsize (prepares, preparemax, preparecnt, (void));
		1413	prepares [preparecnt - 1] = w;
		1414	}
		1415
		1416	void
		1417	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1418	{
		1419	ev_clear_pending (EV_A_ (W)w);
		1420	if (ev_is_active (w))
		1421	return;
		1422
		1423	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1424	ev_stop (EV_A_ (W)w);
		1425	}
		1426
		1427	void
		1428	ev_check_start (EV_P_ struct ev_check *w)
		1429	{
		1430	if (ev_is_active (w))
		1431	return;
		1432
		1433	ev_start (EV_A_ (W)w, ++checkcnt);
		1434	array_needsize (checks, checkmax, checkcnt, (void));
		1435	checks [checkcnt - 1] = w;
		1436	}
		1437
		1438	void
		1439	ev_check_stop (EV_P_ struct ev_check *w)
		1440	{
		1441	ev_clear_pending (EV_A_ (W)w);
		1442	if (ev_is_active (w))
		1443	return;
		1444
		1445	checks [((W)w)->active - 1] = checks [--checkcnt];
		1446	ev_stop (EV_A_ (W)w);
		1447	}
		1448
		1449	#ifndef SA_RESTART
		1450	# define SA_RESTART 0
		1451	#endif
		1452
		1453	void
		1454	ev_signal_start (EV_P_ struct ev_signal *w)
		1455	{
		1456	#if EV_MULTIPLICITY
		1457	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1458	#endif
		1459	if (ev_is_active (w))
		1460	return;
		1461
		1462	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		1463
858	ev_start ((W)w, 1);	1464	ev_start (EV_A_ (W)w, 1);
859	array_needsize (signals, signalmax, w->signum, signals_init);	1465	array_needsize (signals, signalmax, w->signum, signals_init);
860	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1466	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
861		1467
862	if (!w->next)	1468	if (!((WL)w)->next)
863	{	1469	{
		1470	#if WIN32
		1471	signal (w->signum, sighandler);
		1472	#else
864	struct sigaction sa;	1473	struct sigaction sa;
865	sa.sa_handler = sighandler;	1474	sa.sa_handler = sighandler;
866	sigfillset (&sa.sa_mask);	1475	sigfillset (&sa.sa_mask);
867	sa.sa_flags = 0;	1476	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
868	sigaction (w->signum, &sa, 0);	1477	sigaction (w->signum, &sa, 0);
		1478	#endif
869	}	1479	}
870	}	1480	}
871		1481
872	void	1482	void
873	evsignal_stop (struct ev_signal *w)	1483	ev_signal_stop (EV_P_ struct ev_signal *w)
874	{	1484	{
875	ev_clear ((W)w);	1485	ev_clear_pending (EV_A_ (W)w);
876	if (!ev_is_active (w))	1486	if (!ev_is_active (w))
877	return;	1487	return;
878		1488
879	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1489	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
880	ev_stop ((W)w);	1490	ev_stop (EV_A_ (W)w);
881		1491
882	if (!signals [w->signum - 1].head)	1492	if (!signals [w->signum - 1].head)
883	signal (w->signum, SIG_DFL);	1493	signal (w->signum, SIG_DFL);
884	}	1494	}
885		1495
886	void evidle_start (struct ev_idle *w)	1496	void
		1497	ev_child_start (EV_P_ struct ev_child *w)
887	{	1498	{
		1499	#if EV_MULTIPLICITY
		1500	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1501	#endif
888	if (ev_is_active (w))	1502	if (ev_is_active (w))
889	return;	1503	return;
890		1504
891	ev_start ((W)w, ++idlecnt);	1505	ev_start (EV_A_ (W)w, 1);
892	array_needsize (idles, idlemax, idlecnt, );	1506	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
893	idles [idlecnt - 1] = w;
894	}	1507	}
895		1508
896	void evidle_stop (struct ev_idle *w)	1509	void
		1510	ev_child_stop (EV_P_ struct ev_child *w)
897	{	1511	{
898	ev_clear ((W)w);	1512	ev_clear_pending (EV_A_ (W)w);
899	if (ev_is_active (w))	1513	if (ev_is_active (w))
900	return;	1514	return;
901		1515
902	idles [w->active - 1] = idles [--idlecnt];
903	ev_stop ((W)w);
904	}
905
906	void evprepare_start (struct ev_prepare *w)
907	{
908	if (ev_is_active (w))
909	return;
910
911	ev_start ((W)w, ++preparecnt);
912	array_needsize (prepares, preparemax, preparecnt, );
913	prepares [preparecnt - 1] = w;
914	}
915
916	void evprepare_stop (struct ev_prepare *w)
917	{
918	ev_clear ((W)w);
919	if (ev_is_active (w))
920	return;
921
922	prepares [w->active - 1] = prepares [--preparecnt];
923	ev_stop ((W)w);
924	}
925
926	void evcheck_start (struct ev_check *w)
927	{
928	if (ev_is_active (w))
929	return;
930
931	ev_start ((W)w, ++checkcnt);
932	array_needsize (checks, checkmax, checkcnt, );
933	checks [checkcnt - 1] = w;
934	}
935
936	void evcheck_stop (struct ev_check *w)
937	{
938	ev_clear ((W)w);
939	if (ev_is_active (w))
940	return;
941
942	checks [w->active - 1] = checks [--checkcnt];
943	ev_stop ((W)w);
944	}
945
946	void evchild_start (struct ev_child *w)
947	{
948	if (ev_is_active (w))
949	return;
950
951	ev_start ((W)w, 1);
952	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
953	}
954
955	void evchild_stop (struct ev_child *w)
956	{
957	ev_clear ((W)w);
958	if (ev_is_active (w))
959	return;
960
961	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1516	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
962	ev_stop ((W)w);	1517	ev_stop (EV_A_ (W)w);
963	}	1518	}
964		1519
965	/*****************************************************************************/	1520	/*****************************************************************************/
966		1521
967	struct ev_once	1522	struct ev_once
…		…
971	void (*cb)(int revents, void *arg);	1526	void (*cb)(int revents, void *arg);
972	void *arg;	1527	void *arg;
973	};	1528	};
974		1529
975	static void	1530	static void
976	once_cb (struct ev_once *once, int revents)	1531	once_cb (EV_P_ struct ev_once *once, int revents)
977	{	1532	{
978	void (*cb)(int revents, void *arg) = once->cb;	1533	void (*cb)(int revents, void *arg) = once->cb;
979	void *arg = once->arg;	1534	void *arg = once->arg;
980		1535
981	evio_stop (&once->io);	1536	ev_io_stop (EV_A_ &once->io);
982	evtimer_stop (&once->to);	1537	ev_timer_stop (EV_A_ &once->to);
983	free (once);	1538	ev_free (once);
984		1539
985	cb (revents, arg);	1540	cb (revents, arg);
986	}	1541	}
987		1542
988	static void	1543	static void
989	once_cb_io (struct ev_io *w, int revents)	1544	once_cb_io (EV_P_ struct ev_io *w, int revents)
990	{	1545	{
991	once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);	1546	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents);
992	}	1547	}
993		1548
994	static void	1549	static void
995	once_cb_to (struct ev_timer *w, int revents)	1550	once_cb_to (EV_P_ struct ev_timer *w, int revents)
996	{	1551	{
997	once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);	1552	once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents);
998	}	1553	}
999		1554
1000	void	1555	void
1001	ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1556	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1002	{	1557	{
1003	struct ev_once *once = malloc (sizeof (struct ev_once));	1558	struct ev_once *once = ev_malloc (sizeof (struct ev_once));
1004		1559
1005	if (!once)	1560	if (!once)
1006	cb (EV_ERROR, arg);	1561	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1007	else	1562	else
1008	{	1563	{
1009	once->cb = cb;	1564	once->cb = cb;
1010	once->arg = arg;	1565	once->arg = arg;
1011		1566
1012	evw_init (&once->io, once_cb_io);	1567	ev_watcher_init (&once->io, once_cb_io);
1013
1014	if (fd >= 0)	1568	if (fd >= 0)
1015	{	1569	{
1016	evio_set (&once->io, fd, events);	1570	ev_io_set (&once->io, fd, events);
1017	evio_start (&once->io);	1571	ev_io_start (EV_A_ &once->io);
1018	}	1572	}
1019		1573
1020	evw_init (&once->to, once_cb_to);	1574	ev_watcher_init (&once->to, once_cb_to);
1021
1022	if (timeout >= 0.)	1575	if (timeout >= 0.)
1023	{	1576	{
1024	evtimer_set (&once->to, timeout, 0.);	1577	ev_timer_set (&once->to, timeout, 0.);
1025	evtimer_start (&once->to);	1578	ev_timer_start (EV_A_ &once->to);
1026	}	1579	}
1027	}	1580	}
1028	}	1581	}
1029		1582
1030	/*****************************************************************************/
1031
1032	#if 0
1033
1034	struct ev_io wio;
1035
1036	static void
1037	sin_cb (struct ev_io *w, int revents)
1038	{
1039	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1040	}
1041
1042	static void
1043	ocb (struct ev_timer *w, int revents)
1044	{
1045	//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);
1047	evtimer_start (w);
1048	}
1049
1050	static void
1051	scb (struct ev_signal *w, int revents)
1052	{
1053	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1054	evio_stop (&wio);
1055	evio_start (&wio);
1056	}
1057
1058	static void
1059	gcb (struct ev_signal *w, int revents)
1060	{
1061	fprintf (stderr, "generic %x\n", revents);
1062
1063	}
1064
1065	int main (void)
1066	{
1067	ev_init (0);
1068
1069	evio_init (&wio, sin_cb, 0, EV_READ);
1070	evio_start (&wio);
1071
1072	struct ev_timer t[10000];
1073
1074	#if 0
1075	int i;
1076	for (i = 0; i < 10000; ++i)
1077	{
1078	struct ev_timer *w = t + i;
1079	evw_init (w, ocb, i);
1080	evtimer_init_abs (w, ocb, drand48 (), 0.99775533);
1081	evtimer_start (w);
1082	if (drand48 () < 0.5)
1083	evtimer_stop (w);
1084	}
1085	#endif
1086
1087	struct ev_timer t1;
1088	evtimer_init (&t1, ocb, 5, 10);
1089	evtimer_start (&t1);
1090
1091	struct ev_signal sig;
1092	evsignal_init (&sig, scb, SIGQUIT);
1093	evsignal_start (&sig);
1094
1095	struct ev_check cw;
1096	evcheck_init (&cw, gcb);
1097	evcheck_start (&cw);
1098
1099	struct ev_idle iw;
1100	evidle_init (&iw, gcb);
1101	evidle_start (&iw);
1102
1103	ev_loop (0);
1104
1105	return 0;
1106	}
1107
1108	#endif
1109
1110
1111
1112

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