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

Comparing libev/ev.c (file contents):
Revision 1.31 by root, Thu Nov 1 09:05:33 2007 UTC vs.
Revision 1.80 by root, Fri Nov 9 15:30:59 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	*/
29	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
30	# include "config.h"	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
31	#endif	55	#endif
32		56
33	#include <math.h>	57	#include <math.h>
34	#include <stdlib.h>	58	#include <stdlib.h>
35	#include <unistd.h>
36	#include <fcntl.h>	59	#include <fcntl.h>
37	#include <signal.h>
38	#include <stddef.h>	60	#include <stddef.h>
39		61
40	#include <stdio.h>	62	#include <stdio.h>
41		63
42	#include <assert.h>	64	#include <assert.h>
43	#include <errno.h>	65	#include <errno.h>
44	#include <sys/types.h>	66	#include <sys/types.h>
45	#include <sys/wait.h>
46	#include <sys/time.h>
47	#include <time.h>	67	#include <time.h>
48		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
49	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
50	# ifdef CLOCK_MONOTONIC
51	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
52	# endif
53	#endif	80	#endif
54		81
55	#ifndef EV_USE_SELECT	82	#ifndef EV_USE_SELECT
56	# define EV_USE_SELECT 1	83	# define EV_USE_SELECT 1
57	#endif	84	#endif
58		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
59	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
60	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
61	#endif	92	#endif
62		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
		105	# endif
		106	#endif
		107
		108	#ifndef EV_USE_REALTIME
		109	# define EV_USE_REALTIME 1
		110	#endif
		111
		112	/**/
		113
		114	#ifndef CLOCK_MONOTONIC
		115	# undef EV_USE_MONOTONIC
		116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
63	#ifndef CLOCK_REALTIME	119	#ifndef CLOCK_REALTIME
		120	# undef EV_USE_REALTIME
64	# define EV_USE_REALTIME 0	121	# define EV_USE_REALTIME 0
65	#endif	122	#endif
66	#ifndef EV_USE_REALTIME	123
67	# define EV_USE_REALTIME 1 /* posix requirement, but might be slower */	124	/**/
68	#endif
69		125
70	#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) */
71	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */	127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
72	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
73	#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */	129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
74		130
75	#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)
76		146
77	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
78	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
79	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
80		150
81	static ev_tstamp now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
82	ev_tstamp ev_now;
83	int ev_method;
84		152
85	static int have_monotonic; /* runtime */	153	#include "ev_win32.c"
86
87	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
88	static void (*method_modify)(int fd, int oev, int nev);
89	static void (*method_poll)(ev_tstamp timeout);
90		154
91	/*****************************************************************************/	155	/*****************************************************************************/
92		156
93	ev_tstamp	157	static void (syserr_cb)(const char msg);
		158
		159	void ev_set_syserr_cb (void (cb)(const char msg))
		160	{
		161	syserr_cb = cb;
		162	}
		163
		164	static void
		165	syserr (const char *msg)
		166	{
		167	if (!msg)
		168	msg = "(libev) system error";
		169
		170	if (syserr_cb)
		171	syserr_cb (msg);
		172	else
		173	{
		174	perror (msg);
		175	abort ();
		176	}
		177	}
		178
		179	static void (alloc)(void *ptr, long size);
		180
		181	void ev_set_allocator (void (cb)(void *ptr, long size))
		182	{
		183	alloc = cb;
		184	}
		185
		186	static void *
		187	ev_realloc (void *ptr, long size)
		188	{
		189	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		190
		191	if (!ptr && size)
		192	{
		193	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		194	abort ();
		195	}
		196
		197	return ptr;
		198	}
		199
		200	#define ev_malloc(size) ev_realloc (0, (size))
		201	#define ev_free(ptr) ev_realloc ((ptr), 0)
		202
		203	/*****************************************************************************/
		204
		205	typedef struct
		206	{
		207	WL head;
		208	unsigned char events;
		209	unsigned char reify;
		210	} ANFD;
		211
		212	typedef struct
		213	{
		214	W w;
		215	int events;
		216	} ANPENDING;
		217
		218	#if EV_MULTIPLICITY
		219
		220	struct ev_loop
		221	{
		222	#define VAR(name,decl) decl;
		223	#include "ev_vars.h"
		224	#undef VAR
		225	};
		226	#include "ev_wrap.h"
		227
		228	struct ev_loop default_loop_struct;
		229	static struct ev_loop *default_loop;
		230
		231	#else
		232
		233	#define VAR(name,decl) static decl;
		234	#include "ev_vars.h"
		235	#undef VAR
		236
		237	static int default_loop;
		238
		239	#endif
		240
		241	/*****************************************************************************/
		242
		243	inline ev_tstamp
94	ev_time (void)	244	ev_time (void)
95	{	245	{
96	#if EV_USE_REALTIME	246	#if EV_USE_REALTIME
97	struct timespec ts;	247	struct timespec ts;
98	clock_gettime (CLOCK_REALTIME, &ts);	248	clock_gettime (CLOCK_REALTIME, &ts);
…		…
102	gettimeofday (&tv, 0);	252	gettimeofday (&tv, 0);
103	return tv.tv_sec + tv.tv_usec * 1e-6;	253	return tv.tv_sec + tv.tv_usec * 1e-6;
104	#endif	254	#endif
105	}	255	}
106		256
107	static ev_tstamp	257	inline ev_tstamp
108	get_clock (void)	258	get_clock (void)
109	{	259	{
110	#if EV_USE_MONOTONIC	260	#if EV_USE_MONOTONIC
111	if (have_monotonic)	261	if (expect_true (have_monotonic))
112	{	262	{
113	struct timespec ts;	263	struct timespec ts;
114	clock_gettime (CLOCK_MONOTONIC, &ts);	264	clock_gettime (CLOCK_MONOTONIC, &ts);
115	return ts.tv_sec + ts.tv_nsec * 1e-9;	265	return ts.tv_sec + ts.tv_nsec * 1e-9;
116	}	266	}
117	#endif	267	#endif
118		268
119	return ev_time ();	269	return ev_time ();
120	}	270	}
121		271
		272	ev_tstamp
		273	ev_now (EV_P)
		274	{
		275	return rt_now;
		276	}
		277
122	#define array_roundsize(base,n) ((n) \| 4 & ~3)	278	#define array_roundsize(type,n) ((n) \| 4 & ~3)
123		279
124	#define array_needsize(base,cur,cnt,init) \	280	#define array_needsize(type,base,cur,cnt,init) \
125	if ((cnt) > cur) \	281	if (expect_false ((cnt) > cur)) \
126	{ \	282	{ \
127	int newcnt = cur; \	283	int newcnt = cur; \
128	do \	284	do \
129	{ \	285	{ \
130	newcnt = array_roundsize (base, newcnt << 1); \	286	newcnt = array_roundsize (type, newcnt << 1); \
131	} \	287	} \
132	while ((cnt) > newcnt); \	288	while ((cnt) > newcnt); \
133	\	289	\
134	base = realloc (base, sizeof (base) (newcnt)); \	290	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
135	init (base + cur, newcnt - cur); \	291	init (base + cur, newcnt - cur); \
136	cur = newcnt; \	292	cur = newcnt; \
137	}	293	}
		294
		295	#define array_slim(type,stem) \
		296	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		297	{ \
		298	stem ## max = array_roundsize (stem ## cnt >> 1); \
		299	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		300	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		301	}
		302
		303	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		304	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		305	#define array_free_microshit(stem) \
		306	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		307
		308	#define array_free(stem, idx) \
		309	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
138		310
139	/*****************************************************************************/	311	/*****************************************************************************/
140
141	typedef struct
142	{
143	struct ev_io *head;
144	int events;
145	} ANFD;
146
147	static ANFD *anfds;
148	static int anfdmax;
149		312
150	static void	313	static void
151	anfds_init (ANFD *base, int count)	314	anfds_init (ANFD *base, int count)
152	{	315	{
153	while (count--)	316	while (count--)
154	{	317	{
155	base->head = 0;	318	base->head = 0;
156	base->events = EV_NONE;	319	base->events = EV_NONE;
		320	base->reify = 0;
		321
157	++base;	322	++base;
158	}	323	}
159	}	324	}
160		325
161	typedef struct	326	void
		327	ev_feed_event (EV_P_ void *w, int revents)
162	{	328	{
163	W w;	329	W w_ = (W)w;
164	int events;
165	} ANPENDING;
166		330
167	static ANPENDING *pendings;	331	if (w_->pending)
168	static int pendingmax, pendingcnt;	332	{
		333	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
		334	return;
		335	}
169		336
170	static void
171	event (W w, int events)
172	{
173	w->pending = ++pendingcnt;	337	w_->pending = ++pendingcnt [ABSPRI (w_)];
174	array_needsize (pendings, pendingmax, pendingcnt, );	338	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
175	pendings [pendingcnt - 1].w = w;	339	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
176	pendings [pendingcnt - 1].events = events;	340	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
177	}	341	}
178		342
179	static void	343	static void
180	queue_events (W *events, int eventcnt, int type)	344	queue_events (EV_P_ W *events, int eventcnt, int type)
181	{	345	{
182	int i;	346	int i;
183		347
184	for (i = 0; i < eventcnt; ++i)	348	for (i = 0; i < eventcnt; ++i)
185	event (events [i], type);	349	ev_feed_event (EV_A_ events [i], type);
186	}	350	}
187		351
188	static void	352	inline void
189	fd_event (int fd, int events)	353	fd_event (EV_P_ int fd, int revents)
190	{	354	{
191	ANFD *anfd = anfds + fd;	355	ANFD *anfd = anfds + fd;
192	struct ev_io *w;	356	struct ev_io *w;
193		357
194	for (w = anfd->head; w; w = w->next)	358	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
195	{	359	{
196	int ev = w->events & events;	360	int ev = w->events & revents;
197		361
198	if (ev)	362	if (ev)
199	event ((W)w, ev);	363	ev_feed_event (EV_A_ (W)w, ev);
200	}	364	}
		365	}
		366
		367	void
		368	ev_feed_fd_event (EV_P_ int fd, int revents)
		369	{
		370	fd_event (EV_A_ fd, revents);
201	}	371	}
202		372
203	/*****************************************************************************/	373	/*****************************************************************************/
204		374
205	static int *fdchanges;
206	static int fdchangemax, fdchangecnt;
207
208	static void	375	static void
209	fd_reify (void)	376	fd_reify (EV_P)
210	{	377	{
211	int i;	378	int i;
212		379
213	for (i = 0; i < fdchangecnt; ++i)	380	for (i = 0; i < fdchangecnt; ++i)
214	{	381	{
…		…
216	ANFD *anfd = anfds + fd;	383	ANFD *anfd = anfds + fd;
217	struct ev_io *w;	384	struct ev_io *w;
218		385
219	int events = 0;	386	int events = 0;
220		387
221	for (w = anfd->head; w; w = w->next)	388	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
222	events \|= w->events;	389	events \|= w->events;
223		390
224	anfd->events &= ~EV_REIFY;	391	anfd->reify = 0;
225		392
226	if (anfd->events != events)
227	{
228	method_modify (fd, anfd->events, events);	393	method_modify (EV_A_ fd, anfd->events, events);
229	anfd->events = events;	394	anfd->events = events;
230	}
231	}	395	}
232		396
233	fdchangecnt = 0;	397	fdchangecnt = 0;
234	}	398	}
235		399
236	static void	400	static void
237	fd_change (int fd)	401	fd_change (EV_P_ int fd)
238	{	402	{
239	if (anfds [fd].events & EV_REIFY \|\| fdchangecnt < 0)	403	if (anfds [fd].reify)
240	return;	404	return;
241		405
242	anfds [fd].events \|= EV_REIFY;	406	anfds [fd].reify = 1;
243		407
244	++fdchangecnt;	408	++fdchangecnt;
245	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	409	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
246	fdchanges [fdchangecnt - 1] = fd;	410	fdchanges [fdchangecnt - 1] = fd;
247	}	411	}
248		412
		413	static void
		414	fd_kill (EV_P_ int fd)
		415	{
		416	struct ev_io *w;
		417
		418	while ((w = (struct ev_io *)anfds [fd].head))
		419	{
		420	ev_io_stop (EV_A_ w);
		421	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		422	}
		423	}
		424
		425	static int
		426	fd_valid (int fd)
		427	{
		428	#ifdef WIN32
		429	return !!win32_get_osfhandle (fd);
		430	#else
		431	return fcntl (fd, F_GETFD) != -1;
		432	#endif
		433	}
		434
249	/* called on EBADF to verify fds */	435	/* called on EBADF to verify fds */
250	static void	436	static void
251	fd_recheck (void)	437	fd_ebadf (EV_P)
252	{	438	{
253	int fd;	439	int fd;
254		440
255	for (fd = 0; fd < anfdmax; ++fd)	441	for (fd = 0; fd < anfdmax; ++fd)
256	if (anfds [fd].events)	442	if (anfds [fd].events)
257	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	443	if (!fd_valid (fd) == -1 && errno == EBADF)
258	while (anfds [fd].head)	444	fd_kill (EV_A_ fd);
		445	}
		446
		447	/* called on ENOMEM in select/poll to kill some fds and retry */
		448	static void
		449	fd_enomem (EV_P)
		450	{
		451	int fd;
		452
		453	for (fd = anfdmax; fd--; )
		454	if (anfds [fd].events)
259	{	455	{
260	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT);	456	fd_kill (EV_A_ fd);
261	ev_io_stop (anfds [fd].head);	457	return;
262	}	458	}
		459	}
		460
		461	/* usually called after fork if method needs to re-arm all fds from scratch */
		462	static void
		463	fd_rearm_all (EV_P)
		464	{
		465	int fd;
		466
		467	/* this should be highly optimised to not do anything but set a flag */
		468	for (fd = 0; fd < anfdmax; ++fd)
		469	if (anfds [fd].events)
		470	{
		471	anfds [fd].events = 0;
		472	fd_change (EV_A_ fd);
		473	}
263	}	474	}
264		475
265	/*****************************************************************************/	476	/*****************************************************************************/
266		477
267	static struct ev_timer **timers;
268	static int timermax, timercnt;
269
270	static struct ev_periodic **periodics;
271	static int periodicmax, periodiccnt;
272
273	static void	478	static void
274	upheap (WT *timers, int k)	479	upheap (WT *heap, int k)
275	{	480	{
276	WT w = timers [k];	481	WT w = heap [k];
277		482
278	while (k && timers [k >> 1]->at > w->at)	483	while (k && heap [k >> 1]->at > w->at)
279	{	484	{
280	timers [k] = timers [k >> 1];	485	heap [k] = heap [k >> 1];
281	timers [k]->active = k + 1;	486	((W)heap [k])->active = k + 1;
282	k >>= 1;	487	k >>= 1;
283	}	488	}
284		489
285	timers [k] = w;	490	heap [k] = w;
286	timers [k]->active = k + 1;	491	((W)heap [k])->active = k + 1;
287		492
288	}	493	}
289		494
290	static void	495	static void
291	downheap (WT *timers, int N, int k)	496	downheap (WT *heap, int N, int k)
292	{	497	{
293	WT w = timers [k];	498	WT w = heap [k];
294		499
295	while (k < (N >> 1))	500	while (k < (N >> 1))
296	{	501	{
297	int j = k << 1;	502	int j = k << 1;
298		503
299	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	504	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
300	++j;	505	++j;
301		506
302	if (w->at <= timers [j]->at)	507	if (w->at <= heap [j]->at)
303	break;	508	break;
304		509
305	timers [k] = timers [j];	510	heap [k] = heap [j];
306	timers [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
307	k = j;	512	k = j;
308	}	513	}
309		514
310	timers [k] = w;	515	heap [k] = w;
311	timers [k]->active = k + 1;	516	((W)heap [k])->active = k + 1;
312	}	517	}
313		518
314	/*****************************************************************************/	519	/*****************************************************************************/
315		520
316	typedef struct	521	typedef struct
317	{	522	{
318	struct ev_signal *head;	523	WL head;
319	sig_atomic_t gotsig;	524	sig_atomic_t volatile gotsig;
320	} ANSIG;	525	} ANSIG;
321		526
322	static ANSIG *signals;	527	static ANSIG *signals;
323	static int signalmax;	528	static int signalmax;
324		529
325	static int sigpipe [2];	530	static int sigpipe [2];
326	static sig_atomic_t gotsig;	531	static sig_atomic_t volatile gotsig;
327	static struct ev_io sigev;	532	static struct ev_io sigev;
328		533
329	static void	534	static void
330	signals_init (ANSIG *base, int count)	535	signals_init (ANSIG *base, int count)
331	{	536	{
332	while (count--)	537	while (count--)
333	{	538	{
334	base->head = 0;	539	base->head = 0;
335	base->gotsig = 0;	540	base->gotsig = 0;
		541
336	++base;	542	++base;
337	}	543	}
338	}	544	}
339		545
340	static void	546	static void
341	sighandler (int signum)	547	sighandler (int signum)
342	{	548	{
		549	#if WIN32
		550	signal (signum, sighandler);
		551	#endif
		552
343	signals [signum - 1].gotsig = 1;	553	signals [signum - 1].gotsig = 1;
344		554
345	if (!gotsig)	555	if (!gotsig)
346	{	556	{
		557	int old_errno = errno;
347	gotsig = 1;	558	gotsig = 1;
		559	#ifdef WIN32
		560	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		561	#else
348	write (sigpipe [1], &gotsig, 1);	562	write (sigpipe [1], &signum, 1);
		563	#endif
		564	errno = old_errno;
349	}	565	}
350	}	566	}
351		567
		568	void
		569	ev_feed_signal_event (EV_P_ int signum)
		570	{
		571	WL w;
		572
		573	#if EV_MULTIPLICITY
		574	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		575	#endif
		576
		577	--signum;
		578
		579	if (signum < 0 \|\| signum >= signalmax)
		580	return;
		581
		582	signals [signum].gotsig = 0;
		583
		584	for (w = signals [signum].head; w; w = w->next)
		585	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		586	}
		587
352	static void	588	static void
353	sigcb (struct ev_io *iow, int revents)	589	sigcb (EV_P_ struct ev_io *iow, int revents)
354	{	590	{
355	struct ev_signal *w;
356	int sig;	591	int signum;
357		592
		593	#ifdef WIN32
		594	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		595	#else
		596	read (sigpipe [0], &revents, 1);
		597	#endif
358	gotsig = 0;	598	gotsig = 0;
359	read (sigpipe [0], &revents, 1);
360		599
361	for (sig = signalmax; sig--; )	600	for (signum = signalmax; signum--; )
362	if (signals [sig].gotsig)	601	if (signals [signum].gotsig)
363	{	602	ev_feed_signal_event (EV_A_ signum + 1);
364	signals [sig].gotsig = 0;
365
366	for (w = signals [sig].head; w; w = w->next)
367	event ((W)w, EV_SIGNAL);
368	}
369	}	603	}
370		604
371	static void	605	static void
372	siginit (void)	606	siginit (EV_P)
373	{	607	{
		608	#ifndef WIN32
374	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	609	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
375	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	610	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
376		611
377	/* rather than sort out wether we really need nb, set it */	612	/* rather than sort out wether we really need nb, set it */
378	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	613	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
379	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	614	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		615	#endif
380		616
381	ev_io_set (&sigev, sigpipe [0], EV_READ);	617	ev_io_set (&sigev, sigpipe [0], EV_READ);
382	ev_io_start (&sigev);	618	ev_io_start (EV_A_ &sigev);
		619	ev_unref (EV_A); /* child watcher should not keep loop alive */
383	}	620	}
384		621
385	/*****************************************************************************/	622	/*****************************************************************************/
386		623
387	static struct ev_idle **idles;
388	static int idlemax, idlecnt;
389
390	static struct ev_prepare **prepares;
391	static int preparemax, preparecnt;
392
393	static struct ev_check **checks;
394	static int checkmax, checkcnt;
395
396	/*****************************************************************************/
397
398	static struct ev_child *childs [PID_HASHSIZE];	624	static struct ev_child *childs [PID_HASHSIZE];
		625
		626	#ifndef WIN32
		627
399	static struct ev_signal childev;	628	static struct ev_signal childev;
400		629
401	#ifndef WCONTINUED	630	#ifndef WCONTINUED
402	# define WCONTINUED 0	631	# define WCONTINUED 0
403	#endif	632	#endif
404		633
405	static void	634	static void
406	childcb (struct ev_signal *sw, int revents)	635	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
407	{	636	{
408	struct ev_child *w;	637	struct ev_child *w;
		638
		639	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		640	if (w->pid == pid \|\| !w->pid)
		641	{
		642	ev_priority (w) = ev_priority (sw); /* need to do it now */
		643	w->rpid = pid;
		644	w->rstatus = status;
		645	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		646	}
		647	}
		648
		649	static void
		650	childcb (EV_P_ struct ev_signal *sw, int revents)
		651	{
409	int pid, status;	652	int pid, status;
410		653
411	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	654	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
412	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	655	{
413	if (w->pid == pid \|\| w->pid == -1)	656	/* make sure we are called again until all childs have been reaped */
414	{	657	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
415	w->status = status;	658
416	event ((W)w, EV_CHILD);	659	child_reap (EV_A_ sw, pid, pid, status);
417	}	660	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		661	}
418	}	662	}
		663
		664	#endif
419		665
420	/*****************************************************************************/	666	/*****************************************************************************/
421		667
		668	#if EV_USE_KQUEUE
		669	# include "ev_kqueue.c"
		670	#endif
422	#if EV_USE_EPOLL	671	#if EV_USE_EPOLL
423	# include "ev_epoll.c"	672	# include "ev_epoll.c"
424	#endif	673	#endif
		674	#if EV_USE_POLL
		675	# include "ev_poll.c"
		676	#endif
425	#if EV_USE_SELECT	677	#if EV_USE_SELECT
426	# include "ev_select.c"	678	# include "ev_select.c"
427	#endif	679	#endif
428		680
429	int	681	int
…		…
436	ev_version_minor (void)	688	ev_version_minor (void)
437	{	689	{
438	return EV_VERSION_MINOR;	690	return EV_VERSION_MINOR;
439	}	691	}
440		692
441	int ev_init (int flags)	693	/* return true if we are running with elevated privileges and should ignore env variables */
		694	static int
		695	enable_secure (void)
442	{	696	{
		697	#ifdef WIN32
		698	return 0;
		699	#else
		700	return getuid () != geteuid ()
		701	\|\| getgid () != getegid ();
		702	#endif
		703	}
		704
		705	int
		706	ev_method (EV_P)
		707	{
		708	return method;
		709	}
		710
		711	static void
		712	loop_init (EV_P_ int methods)
		713	{
443	if (!ev_method)	714	if (!method)
444	{	715	{
445	#if EV_USE_MONOTONIC	716	#if EV_USE_MONOTONIC
446	{	717	{
447	struct timespec ts;	718	struct timespec ts;
448	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	719	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
449	have_monotonic = 1;	720	have_monotonic = 1;
450	}	721	}
451	#endif	722	#endif
452		723
453	ev_now = ev_time ();	724	rt_now = ev_time ();
454	now = get_clock ();	725	mn_now = get_clock ();
		726	now_floor = mn_now;
455	diff = ev_now - now;	727	rtmn_diff = rt_now - mn_now;
456		728
457	if (pipe (sigpipe))	729	if (methods == EVMETHOD_AUTO)
458	return 0;	730	if (!enable_secure () && getenv ("LIBEV_METHODS"))
459		731	methods = atoi (getenv ("LIBEV_METHODS"));
		732	else
460	ev_method = EVMETHOD_NONE;	733	methods = EVMETHOD_ANY;
		734
		735	method = 0;
		736	#if EV_USE_WIN32
		737	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		738	#endif
		739	#if EV_USE_KQUEUE
		740	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		741	#endif
461	#if EV_USE_EPOLL	742	#if EV_USE_EPOLL
462	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	743	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		744	#endif
		745	#if EV_USE_POLL
		746	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
463	#endif	747	#endif
464	#if EV_USE_SELECT	748	#if EV_USE_SELECT
465	if (ev_method == EVMETHOD_NONE) select_init (flags);	749	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
466	#endif	750	#endif
467		751
		752	ev_watcher_init (&sigev, sigcb);
		753	ev_set_priority (&sigev, EV_MAXPRI);
		754	}
		755	}
		756
		757	void
		758	loop_destroy (EV_P)
		759	{
		760	int i;
		761
		762	#if EV_USE_WIN32
		763	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		764	#endif
		765	#if EV_USE_KQUEUE
		766	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		767	#endif
		768	#if EV_USE_EPOLL
		769	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		770	#endif
		771	#if EV_USE_POLL
		772	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		773	#endif
		774	#if EV_USE_SELECT
		775	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		776	#endif
		777
		778	for (i = NUMPRI; i--; )
		779	array_free (pending, [i]);
		780
		781	/* have to use the microsoft-never-gets-it-right macro */
		782	array_free_microshit (fdchange);
		783	array_free_microshit (timer);
		784	array_free_microshit (periodic);
		785	array_free_microshit (idle);
		786	array_free_microshit (prepare);
		787	array_free_microshit (check);
		788
		789	method = 0;
		790	}
		791
		792	static void
		793	loop_fork (EV_P)
		794	{
		795	#if EV_USE_EPOLL
		796	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		797	#endif
		798	#if EV_USE_KQUEUE
		799	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		800	#endif
		801
		802	if (ev_is_active (&sigev))
		803	{
		804	/* default loop */
		805
		806	ev_ref (EV_A);
		807	ev_io_stop (EV_A_ &sigev);
		808	close (sigpipe [0]);
		809	close (sigpipe [1]);
		810
		811	while (pipe (sigpipe))
		812	syserr ("(libev) error creating pipe");
		813
		814	siginit (EV_A);
		815	}
		816
		817	postfork = 0;
		818	}
		819
		820	#if EV_MULTIPLICITY
		821	struct ev_loop *
		822	ev_loop_new (int methods)
		823	{
		824	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		825
		826	memset (loop, 0, sizeof (struct ev_loop));
		827
		828	loop_init (EV_A_ methods);
		829
		830	if (ev_method (EV_A))
		831	return loop;
		832
		833	return 0;
		834	}
		835
		836	void
		837	ev_loop_destroy (EV_P)
		838	{
		839	loop_destroy (EV_A);
		840	ev_free (loop);
		841	}
		842
		843	void
		844	ev_loop_fork (EV_P)
		845	{
		846	postfork = 1;
		847	}
		848
		849	#endif
		850
		851	#if EV_MULTIPLICITY
		852	struct ev_loop *
		853	#else
		854	int
		855	#endif
		856	ev_default_loop (int methods)
		857	{
		858	if (sigpipe [0] == sigpipe [1])
		859	if (pipe (sigpipe))
		860	return 0;
		861
		862	if (!default_loop)
		863	{
		864	#if EV_MULTIPLICITY
		865	struct ev_loop *loop = default_loop = &default_loop_struct;
		866	#else
		867	default_loop = 1;
		868	#endif
		869
		870	loop_init (EV_A_ methods);
		871
468	if (ev_method)	872	if (ev_method (EV_A))
469	{	873	{
470	ev_watcher_init (&sigev, sigcb);
471	siginit ();	874	siginit (EV_A);
472		875
		876	#ifndef WIN32
473	ev_signal_init (&childev, childcb, SIGCHLD);	877	ev_signal_init (&childev, childcb, SIGCHLD);
		878	ev_set_priority (&childev, EV_MAXPRI);
474	ev_signal_start (&childev);	879	ev_signal_start (EV_A_ &childev);
		880	ev_unref (EV_A); /* child watcher should not keep loop alive */
		881	#endif
475	}	882	}
		883	else
		884	default_loop = 0;
476	}	885	}
477		886
478	return ev_method;	887	return default_loop;
		888	}
		889
		890	void
		891	ev_default_destroy (void)
		892	{
		893	#if EV_MULTIPLICITY
		894	struct ev_loop *loop = default_loop;
		895	#endif
		896
		897	#ifndef WIN32
		898	ev_ref (EV_A); /* child watcher */
		899	ev_signal_stop (EV_A_ &childev);
		900	#endif
		901
		902	ev_ref (EV_A); /* signal watcher */
		903	ev_io_stop (EV_A_ &sigev);
		904
		905	close (sigpipe [0]); sigpipe [0] = 0;
		906	close (sigpipe [1]); sigpipe [1] = 0;
		907
		908	loop_destroy (EV_A);
		909	}
		910
		911	void
		912	ev_default_fork (void)
		913	{
		914	#if EV_MULTIPLICITY
		915	struct ev_loop *loop = default_loop;
		916	#endif
		917
		918	if (method)
		919	postfork = 1;
479	}	920	}
480		921
481	/*****************************************************************************/	922	/*****************************************************************************/
482		923
483	void
484	ev_prefork (void)
485	{
486	/* nop */
487	}
488
489	void
490	ev_postfork_parent (void)
491	{
492	/* nop */
493	}
494
495	void
496	ev_postfork_child (void)
497	{
498	#if EV_USE_EPOLL
499	if (ev_method == EVMETHOD_EPOLL)
500	epoll_postfork_child ();
501	#endif
502
503	ev_io_stop (&sigev);
504	close (sigpipe [0]);
505	close (sigpipe [1]);
506	pipe (sigpipe);
507	siginit ();
508	}
509
510	/*****************************************************************************/
511
512	static void	924	static int
		925	any_pending (EV_P)
		926	{
		927	int pri;
		928
		929	for (pri = NUMPRI; pri--; )
		930	if (pendingcnt [pri])
		931	return 1;
		932
		933	return 0;
		934	}
		935
		936	static void
513	call_pending (void)	937	call_pending (EV_P)
514	{	938	{
		939	int pri;
		940
		941	for (pri = NUMPRI; pri--; )
515	while (pendingcnt)	942	while (pendingcnt [pri])
516	{	943	{
517	ANPENDING *p = pendings + --pendingcnt;	944	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
518		945
519	if (p->w)	946	if (p->w)
520	{	947	{
521	p->w->pending = 0;	948	p->w->pending = 0;
522	p->w->cb (p->w, p->events);	949	p->w->cb (EV_A_ p->w, p->events);
523	}	950	}
524	}	951	}
525	}	952	}
526		953
527	static void	954	static void
528	timers_reify (void)	955	timers_reify (EV_P)
529	{	956	{
530	while (timercnt && timers [0]->at <= now)	957	while (timercnt && ((WT)timers [0])->at <= mn_now)
531	{	958	{
532	struct ev_timer *w = timers [0];	959	struct ev_timer *w = timers [0];
		960
		961	assert (("inactive timer on timer heap detected", ev_is_active (w)));
533		962
534	/* first reschedule or stop timer */	963	/* first reschedule or stop timer */
535	if (w->repeat)	964	if (w->repeat)
536	{	965	{
		966	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
537	w->at = now + w->repeat;	967	((WT)w)->at = mn_now + w->repeat;
538	assert (("timer timeout in the past, negative repeat?", w->at > now));
539	downheap ((WT *)timers, timercnt, 0);	968	downheap ((WT *)timers, timercnt, 0);
540	}	969	}
541	else	970	else
542	ev_timer_stop (w); /* nonrepeating: stop timer */	971	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
543		972
544	event ((W)w, EV_TIMEOUT);	973	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
545	}	974	}
546	}	975	}
547		976
548	static void	977	static void
549	periodics_reify (void)	978	periodics_reify (EV_P)
550	{	979	{
551	while (periodiccnt && periodics [0]->at <= ev_now)	980	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
552	{	981	{
553	struct ev_periodic *w = periodics [0];	982	struct ev_periodic *w = periodics [0];
554		983
		984	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		985
555	/* first reschedule or stop timer */	986	/* first reschedule or stop timer */
556	if (w->interval)	987	if (w->reschedule_cb)
557	{	988	{
		989	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		990
		991	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		992	downheap ((WT *)periodics, periodiccnt, 0);
		993	}
		994	else if (w->interval)
		995	{
558	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	996	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
559	assert (("periodic timeout in the past, negative interval?", w->at > ev_now));	997	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
560	downheap ((WT *)periodics, periodiccnt, 0);	998	downheap ((WT *)periodics, periodiccnt, 0);
561	}	999	}
562	else	1000	else
563	ev_periodic_stop (w); /* nonrepeating: stop timer */	1001	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
564		1002
565	event ((W)w, EV_TIMEOUT);	1003	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
566	}	1004	}
567	}	1005	}
568		1006
569	static void	1007	static void
570	periodics_reschedule (ev_tstamp diff)	1008	periodics_reschedule (EV_P)
571	{	1009	{
572	int i;	1010	int i;
573		1011
574	/* adjust periodics after time jump */	1012	/* adjust periodics after time jump */
575	for (i = 0; i < periodiccnt; ++i)	1013	for (i = 0; i < periodiccnt; ++i)
576	{	1014	{
577	struct ev_periodic *w = periodics [i];	1015	struct ev_periodic *w = periodics [i];
578		1016
		1017	if (w->reschedule_cb)
		1018	((WT)w)->at = w->reschedule_cb (w, rt_now);
579	if (w->interval)	1019	else if (w->interval)
		1020	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1021	}
		1022
		1023	/* now rebuild the heap */
		1024	for (i = periodiccnt >> 1; i--; )
		1025	downheap ((WT *)periodics, periodiccnt, i);
		1026	}
		1027
		1028	inline int
		1029	time_update_monotonic (EV_P)
		1030	{
		1031	mn_now = get_clock ();
		1032
		1033	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
		1034	{
		1035	rt_now = rtmn_diff + mn_now;
		1036	return 0;
		1037	}
		1038	else
		1039	{
		1040	now_floor = mn_now;
		1041	rt_now = ev_time ();
		1042	return 1;
		1043	}
		1044	}
		1045
		1046	static void
		1047	time_update (EV_P)
		1048	{
		1049	int i;
		1050
		1051	#if EV_USE_MONOTONIC
		1052	if (expect_true (have_monotonic))
		1053	{
		1054	if (time_update_monotonic (EV_A))
580	{	1055	{
581	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1056	ev_tstamp odiff = rtmn_diff;
582		1057
583	if (fabs (diff) >= 1e-4)	1058	for (i = 4; --i; ) /* loop a few times, before making important decisions */
584	{	1059	{
585	ev_periodic_stop (w);	1060	rtmn_diff = rt_now - mn_now;
586	ev_periodic_start (w);
587		1061
588	i = 0; /* restart loop, inefficient, but time jumps should be rare */	1062	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
		1063	return; /* all is well */
		1064
		1065	rt_now = ev_time ();
		1066	mn_now = get_clock ();
		1067	now_floor = mn_now;
589	}	1068	}
		1069
		1070	periodics_reschedule (EV_A);
		1071	/* no timer adjustment, as the monotonic clock doesn't jump */
		1072	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
590	}	1073	}
591	}	1074	}
592	}	1075	else
593		1076	#endif
594	static void	1077	{
595	time_update (void)
596	{
597	int i;
598
599	ev_now = ev_time ();	1078	rt_now = ev_time ();
600		1079
601	if (have_monotonic)	1080	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
602	{
603	ev_tstamp odiff = diff;
604
605	for (i = 4; --i; ) /* loop a few times, before making important decisions */
606	{	1081	{
607	now = get_clock ();
608	diff = ev_now - now;
609
610	if (fabs (odiff - diff) < MIN_TIMEJUMP)
611	return; /* all is well */
612
613	ev_now = ev_time ();
614	}
615
616	periodics_reschedule (diff - odiff);
617	/* no timer adjustment, as the monotonic clock doesn't jump */
618	}
619	else
620	{
621	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)
622	{
623	periodics_reschedule (ev_now - now);	1082	periodics_reschedule (EV_A);
624		1083
625	/* adjust timers. this is easy, as the offset is the same for all */	1084	/* adjust timers. this is easy, as the offset is the same for all */
626	for (i = 0; i < timercnt; ++i)	1085	for (i = 0; i < timercnt; ++i)
627	timers [i]->at += diff;	1086	((WT)timers [i])->at += rt_now - mn_now;
628	}	1087	}
629		1088
630	now = ev_now;	1089	mn_now = rt_now;
631	}	1090	}
632	}	1091	}
633		1092
634	int ev_loop_done;	1093	void
		1094	ev_ref (EV_P)
		1095	{
		1096	++activecnt;
		1097	}
635		1098
		1099	void
		1100	ev_unref (EV_P)
		1101	{
		1102	--activecnt;
		1103	}
		1104
		1105	static int loop_done;
		1106
		1107	void
636	void ev_loop (int flags)	1108	ev_loop (EV_P_ int flags)
637	{	1109	{
638	double block;	1110	double block;
639	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1111	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
640		1112
641	do	1113	do
642	{	1114	{
643	/* queue check watchers (and execute them) */	1115	/* queue check watchers (and execute them) */
644	if (preparecnt)	1116	if (expect_false (preparecnt))
645	{	1117	{
646	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1118	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
647	call_pending ();	1119	call_pending (EV_A);
648	}	1120	}
649		1121
		1122	/* we might have forked, so reify kernel state if necessary */
		1123	if (expect_false (postfork))
		1124	loop_fork (EV_A);
		1125
650	/* update fd-related kernel structures */	1126	/* update fd-related kernel structures */
651	fd_reify ();	1127	fd_reify (EV_A);
652		1128
653	/* calculate blocking time */	1129	/* calculate blocking time */
654		1130
655	/* we only need this for !monotonic clockor timers, but as we basically	1131	/* we only need this for !monotonic clock or timers, but as we basically
656	always have timers, we just calculate it always */	1132	always have timers, we just calculate it always */
		1133	#if EV_USE_MONOTONIC
		1134	if (expect_true (have_monotonic))
		1135	time_update_monotonic (EV_A);
		1136	else
		1137	#endif
		1138	{
657	ev_now = ev_time ();	1139	rt_now = ev_time ();
		1140	mn_now = rt_now;
		1141	}
658		1142
659	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1143	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
660	block = 0.;	1144	block = 0.;
661	else	1145	else
662	{	1146	{
663	block = MAX_BLOCKTIME;	1147	block = MAX_BLOCKTIME;
664		1148
665	if (timercnt)	1149	if (timercnt)
666	{	1150	{
667	ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge;	1151	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
668	if (block > to) block = to;	1152	if (block > to) block = to;
669	}	1153	}
670		1154
671	if (periodiccnt)	1155	if (periodiccnt)
672	{	1156	{
673	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1157	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
674	if (block > to) block = to;	1158	if (block > to) block = to;
675	}	1159	}
676		1160
677	if (block < 0.) block = 0.;	1161	if (block < 0.) block = 0.;
678	}	1162	}
679		1163
680	method_poll (block);	1164	method_poll (EV_A_ block);
681		1165
682	/* update ev_now, do magic */	1166	/* update rt_now, do magic */
683	time_update ();	1167	time_update (EV_A);
684		1168
685	/* queue pending timers and reschedule them */	1169	/* queue pending timers and reschedule them */
686	timers_reify (); /* relative timers called last */	1170	timers_reify (EV_A); /* relative timers called last */
687	periodics_reify (); /* absolute timers called first */	1171	periodics_reify (EV_A); /* absolute timers called first */
688		1172
689	/* queue idle watchers unless io or timers are pending */	1173	/* queue idle watchers unless io or timers are pending */
690	if (!pendingcnt)	1174	if (idlecnt && !any_pending (EV_A))
691	queue_events ((W *)idles, idlecnt, EV_IDLE);	1175	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
692		1176
693	/* queue check watchers, to be executed first */	1177	/* queue check watchers, to be executed first */
694	if (checkcnt)	1178	if (checkcnt)
695	queue_events ((W *)checks, checkcnt, EV_CHECK);	1179	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
696		1180
697	call_pending ();	1181	call_pending (EV_A);
698	}	1182	}
699	while (!ev_loop_done);	1183	while (activecnt && !loop_done);
700		1184
701	if (ev_loop_done != 2)	1185	if (loop_done != 2)
702	ev_loop_done = 0;	1186	loop_done = 0;
		1187	}
		1188
		1189	void
		1190	ev_unloop (EV_P_ int how)
		1191	{
		1192	loop_done = how;
703	}	1193	}
704		1194
705	/*****************************************************************************/	1195	/*****************************************************************************/
706		1196
707	static void	1197	inline void
708	wlist_add (WL *head, WL elem)	1198	wlist_add (WL *head, WL elem)
709	{	1199	{
710	elem->next = *head;	1200	elem->next = *head;
711	*head = elem;	1201	*head = elem;
712	}	1202	}
713		1203
714	static void	1204	inline void
715	wlist_del (WL *head, WL elem)	1205	wlist_del (WL *head, WL elem)
716	{	1206	{
717	while (*head)	1207	while (*head)
718	{	1208	{
719	if (*head == elem)	1209	if (*head == elem)
…		…
724		1214
725	head = &(*head)->next;	1215	head = &(*head)->next;
726	}	1216	}
727	}	1217	}
728		1218
729	static void	1219	inline void
730	ev_clear (W w)	1220	ev_clear_pending (EV_P_ W w)
731	{	1221	{
732	if (w->pending)	1222	if (w->pending)
733	{	1223	{
734	pendings [w->pending - 1].w = 0;	1224	pendings [ABSPRI (w)][w->pending - 1].w = 0;
735	w->pending = 0;	1225	w->pending = 0;
736	}	1226	}
737	}	1227	}
738		1228
739	static void	1229	inline void
740	ev_start (W w, int active)	1230	ev_start (EV_P_ W w, int active)
741	{	1231	{
		1232	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1233	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1234
742	w->active = active;	1235	w->active = active;
		1236	ev_ref (EV_A);
743	}	1237	}
744		1238
745	static void	1239	inline void
746	ev_stop (W w)	1240	ev_stop (EV_P_ W w)
747	{	1241	{
		1242	ev_unref (EV_A);
748	w->active = 0;	1243	w->active = 0;
749	}	1244	}
750		1245
751	/*****************************************************************************/	1246	/*****************************************************************************/
752		1247
753	void	1248	void
754	ev_io_start (struct ev_io *w)	1249	ev_io_start (EV_P_ struct ev_io *w)
755	{	1250	{
		1251	int fd = w->fd;
		1252
756	if (ev_is_active (w))	1253	if (ev_is_active (w))
757	return;	1254	return;
758		1255
759	int fd = w->fd;	1256	assert (("ev_io_start called with negative fd", fd >= 0));
760		1257
761	ev_start ((W)w, 1);	1258	ev_start (EV_A_ (W)w, 1);
762	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1259	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
763	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1260	wlist_add ((WL *)&anfds[fd].head, (WL)w);
764		1261
765	fd_change (fd);	1262	fd_change (EV_A_ fd);
766	}	1263	}
767		1264
768	void	1265	void
769	ev_io_stop (struct ev_io *w)	1266	ev_io_stop (EV_P_ struct ev_io *w)
770	{	1267	{
771	ev_clear ((W)w);	1268	ev_clear_pending (EV_A_ (W)w);
772	if (!ev_is_active (w))	1269	if (!ev_is_active (w))
773	return;	1270	return;
774		1271
775	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1272	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
776	ev_stop ((W)w);	1273	ev_stop (EV_A_ (W)w);
777		1274
778	fd_change (w->fd);	1275	fd_change (EV_A_ w->fd);
779	}	1276	}
780		1277
781	void	1278	void
782	ev_timer_start (struct ev_timer *w)	1279	ev_timer_start (EV_P_ struct ev_timer *w)
783	{	1280	{
784	if (ev_is_active (w))	1281	if (ev_is_active (w))
785	return;	1282	return;
786		1283
787	w->at += now;	1284	((WT)w)->at += mn_now;
788		1285
789	assert (("timer repeat value less than zero not allowed", w->repeat >= 0.));	1286	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
790		1287
791	ev_start ((W)w, ++timercnt);	1288	ev_start (EV_A_ (W)w, ++timercnt);
792	array_needsize (timers, timermax, timercnt, );	1289	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
793	timers [timercnt - 1] = w;	1290	timers [timercnt - 1] = w;
794	upheap ((WT *)timers, timercnt - 1);	1291	upheap ((WT *)timers, timercnt - 1);
795	}
796		1292
		1293	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1294	}
		1295
797	void	1296	void
798	ev_timer_stop (struct ev_timer *w)	1297	ev_timer_stop (EV_P_ struct ev_timer *w)
799	{	1298	{
800	ev_clear ((W)w);	1299	ev_clear_pending (EV_A_ (W)w);
801	if (!ev_is_active (w))	1300	if (!ev_is_active (w))
802	return;	1301	return;
803		1302
		1303	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1304
804	if (w->active < timercnt--)	1305	if (((W)w)->active < timercnt--)
805	{	1306	{
806	timers [w->active - 1] = timers [timercnt];	1307	timers [((W)w)->active - 1] = timers [timercnt];
807	downheap ((WT *)timers, timercnt, w->active - 1);	1308	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
808	}	1309	}
809		1310
810	w->at = w->repeat;	1311	((WT)w)->at = w->repeat;
811		1312
812	ev_stop ((W)w);	1313	ev_stop (EV_A_ (W)w);
813	}	1314	}
814		1315
815	void	1316	void
816	ev_timer_again (struct ev_timer *w)	1317	ev_timer_again (EV_P_ struct ev_timer *w)
817	{	1318	{
818	if (ev_is_active (w))	1319	if (ev_is_active (w))
819	{	1320	{
820	if (w->repeat)	1321	if (w->repeat)
821	{	1322	{
822	w->at = now + w->repeat;	1323	((WT)w)->at = mn_now + w->repeat;
823	downheap ((WT *)timers, timercnt, w->active - 1);	1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
824	}	1325	}
825	else	1326	else
826	ev_timer_stop (w);	1327	ev_timer_stop (EV_A_ w);
827	}	1328	}
828	else if (w->repeat)	1329	else if (w->repeat)
829	ev_timer_start (w);	1330	ev_timer_start (EV_A_ w);
830	}	1331	}
831		1332
832	void	1333	void
833	ev_periodic_start (struct ev_periodic *w)	1334	ev_periodic_start (EV_P_ struct ev_periodic *w)
834	{	1335	{
835	if (ev_is_active (w))	1336	if (ev_is_active (w))
836	return;	1337	return;
837		1338
838	assert (("periodic interval value less than zero not allowed", w->interval >= 0.));	1339	if (w->reschedule_cb)
839		1340	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1341	else if (w->interval)
		1342	{
		1343	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
840	/* this formula differs from the one in periodic_reify because we do not always round up */	1344	/* this formula differs from the one in periodic_reify because we do not always round up */
841	if (w->interval)
842	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1345	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1346	}
843		1347
844	ev_start ((W)w, ++periodiccnt);	1348	ev_start (EV_A_ (W)w, ++periodiccnt);
845	array_needsize (periodics, periodicmax, periodiccnt, );	1349	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
846	periodics [periodiccnt - 1] = w;	1350	periodics [periodiccnt - 1] = w;
847	upheap ((WT *)periodics, periodiccnt - 1);	1351	upheap ((WT *)periodics, periodiccnt - 1);
848	}
849		1352
		1353	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1354	}
		1355
850	void	1356	void
851	ev_periodic_stop (struct ev_periodic *w)	1357	ev_periodic_stop (EV_P_ struct ev_periodic *w)
852	{	1358	{
853	ev_clear ((W)w);	1359	ev_clear_pending (EV_A_ (W)w);
854	if (!ev_is_active (w))	1360	if (!ev_is_active (w))
855	return;	1361	return;
856		1362
		1363	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1364
857	if (w->active < periodiccnt--)	1365	if (((W)w)->active < periodiccnt--)
858	{	1366	{
859	periodics [w->active - 1] = periodics [periodiccnt];	1367	periodics [((W)w)->active - 1] = periodics [periodiccnt];
860	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1368	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
861	}	1369	}
862		1370
863	ev_stop ((W)w);	1371	ev_stop (EV_A_ (W)w);
864	}	1372	}
865		1373
866	void	1374	void
		1375	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1376	{
		1377	ev_periodic_stop (EV_A_ w);
		1378	ev_periodic_start (EV_A_ w);
		1379	}
		1380
		1381	void
867	ev_signal_start (struct ev_signal *w)	1382	ev_idle_start (EV_P_ struct ev_idle *w)
868	{	1383	{
869	if (ev_is_active (w))	1384	if (ev_is_active (w))
870	return;	1385	return;
871		1386
		1387	ev_start (EV_A_ (W)w, ++idlecnt);
		1388	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1389	idles [idlecnt - 1] = w;
		1390	}
		1391
		1392	void
		1393	ev_idle_stop (EV_P_ struct ev_idle *w)
		1394	{
		1395	ev_clear_pending (EV_A_ (W)w);
		1396	if (ev_is_active (w))
		1397	return;
		1398
		1399	idles [((W)w)->active - 1] = idles [--idlecnt];
		1400	ev_stop (EV_A_ (W)w);
		1401	}
		1402
		1403	void
		1404	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1405	{
		1406	if (ev_is_active (w))
		1407	return;
		1408
		1409	ev_start (EV_A_ (W)w, ++preparecnt);
		1410	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1411	prepares [preparecnt - 1] = w;
		1412	}
		1413
		1414	void
		1415	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1416	{
		1417	ev_clear_pending (EV_A_ (W)w);
		1418	if (ev_is_active (w))
		1419	return;
		1420
		1421	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1422	ev_stop (EV_A_ (W)w);
		1423	}
		1424
		1425	void
		1426	ev_check_start (EV_P_ struct ev_check *w)
		1427	{
		1428	if (ev_is_active (w))
		1429	return;
		1430
		1431	ev_start (EV_A_ (W)w, ++checkcnt);
		1432	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1433	checks [checkcnt - 1] = w;
		1434	}
		1435
		1436	void
		1437	ev_check_stop (EV_P_ struct ev_check *w)
		1438	{
		1439	ev_clear_pending (EV_A_ (W)w);
		1440	if (ev_is_active (w))
		1441	return;
		1442
		1443	checks [((W)w)->active - 1] = checks [--checkcnt];
		1444	ev_stop (EV_A_ (W)w);
		1445	}
		1446
		1447	#ifndef SA_RESTART
		1448	# define SA_RESTART 0
		1449	#endif
		1450
		1451	void
		1452	ev_signal_start (EV_P_ struct ev_signal *w)
		1453	{
		1454	#if EV_MULTIPLICITY
		1455	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1456	#endif
		1457	if (ev_is_active (w))
		1458	return;
		1459
		1460	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
		1461
872	ev_start ((W)w, 1);	1462	ev_start (EV_A_ (W)w, 1);
873	array_needsize (signals, signalmax, w->signum, signals_init);	1463	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
874	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1464	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
875		1465
876	if (!w->next)	1466	if (!((WL)w)->next)
877	{	1467	{
		1468	#if WIN32
		1469	signal (w->signum, sighandler);
		1470	#else
878	struct sigaction sa;	1471	struct sigaction sa;
879	sa.sa_handler = sighandler;	1472	sa.sa_handler = sighandler;
880	sigfillset (&sa.sa_mask);	1473	sigfillset (&sa.sa_mask);
881	sa.sa_flags = 0;	1474	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
882	sigaction (w->signum, &sa, 0);	1475	sigaction (w->signum, &sa, 0);
		1476	#endif
883	}	1477	}
884	}	1478	}
885		1479
886	void	1480	void
887	ev_signal_stop (struct ev_signal *w)	1481	ev_signal_stop (EV_P_ struct ev_signal *w)
888	{	1482	{
889	ev_clear ((W)w);	1483	ev_clear_pending (EV_A_ (W)w);
890	if (!ev_is_active (w))	1484	if (!ev_is_active (w))
891	return;	1485	return;
892		1486
893	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1487	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
894	ev_stop ((W)w);	1488	ev_stop (EV_A_ (W)w);
895		1489
896	if (!signals [w->signum - 1].head)	1490	if (!signals [w->signum - 1].head)
897	signal (w->signum, SIG_DFL);	1491	signal (w->signum, SIG_DFL);
898	}	1492	}
899		1493
900	void	1494	void
901	ev_idle_start (struct ev_idle *w)	1495	ev_child_start (EV_P_ struct ev_child *w)
902	{	1496	{
		1497	#if EV_MULTIPLICITY
		1498	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1499	#endif
903	if (ev_is_active (w))	1500	if (ev_is_active (w))
904	return;	1501	return;
905		1502
906	ev_start ((W)w, ++idlecnt);	1503	ev_start (EV_A_ (W)w, 1);
907	array_needsize (idles, idlemax, idlecnt, );	1504	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
908	idles [idlecnt - 1] = w;
909	}	1505	}
910		1506
911	void	1507	void
912	ev_idle_stop (struct ev_idle *w)	1508	ev_child_stop (EV_P_ struct ev_child *w)
913	{	1509	{
914	ev_clear ((W)w);	1510	ev_clear_pending (EV_A_ (W)w);
915	if (ev_is_active (w))	1511	if (ev_is_active (w))
916	return;	1512	return;
917		1513
918	idles [w->active - 1] = idles [--idlecnt];
919	ev_stop ((W)w);
920	}
921
922	void
923	ev_prepare_start (struct ev_prepare *w)
924	{
925	if (ev_is_active (w))
926	return;
927
928	ev_start ((W)w, ++preparecnt);
929	array_needsize (prepares, preparemax, preparecnt, );
930	prepares [preparecnt - 1] = w;
931	}
932
933	void
934	ev_prepare_stop (struct ev_prepare *w)
935	{
936	ev_clear ((W)w);
937	if (ev_is_active (w))
938	return;
939
940	prepares [w->active - 1] = prepares [--preparecnt];
941	ev_stop ((W)w);
942	}
943
944	void
945	ev_check_start (struct ev_check *w)
946	{
947	if (ev_is_active (w))
948	return;
949
950	ev_start ((W)w, ++checkcnt);
951	array_needsize (checks, checkmax, checkcnt, );
952	checks [checkcnt - 1] = w;
953	}
954
955	void
956	ev_check_stop (struct ev_check *w)
957	{
958	ev_clear ((W)w);
959	if (ev_is_active (w))
960	return;
961
962	checks [w->active - 1] = checks [--checkcnt];
963	ev_stop ((W)w);
964	}
965
966	void
967	ev_child_start (struct ev_child *w)
968	{
969	if (ev_is_active (w))
970	return;
971
972	ev_start ((W)w, 1);
973	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
974	}
975
976	void
977	ev_child_stop (struct ev_child *w)
978	{
979	ev_clear ((W)w);
980	if (ev_is_active (w))
981	return;
982
983	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1514	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
984	ev_stop ((W)w);	1515	ev_stop (EV_A_ (W)w);
985	}	1516	}
986		1517
987	/*****************************************************************************/	1518	/*****************************************************************************/
988		1519
989	struct ev_once	1520	struct ev_once
…		…
993	void (cb)(int revents, void arg);	1524	void (cb)(int revents, void arg);
994	void *arg;	1525	void *arg;
995	};	1526	};
996		1527
997	static void	1528	static void
998	once_cb (struct ev_once *once, int revents)	1529	once_cb (EV_P_ struct ev_once *once, int revents)
999	{	1530	{
1000	void (cb)(int revents, void arg) = once->cb;	1531	void (cb)(int revents, void arg) = once->cb;
1001	void *arg = once->arg;	1532	void *arg = once->arg;
1002		1533
1003	ev_io_stop (&once->io);	1534	ev_io_stop (EV_A_ &once->io);
1004	ev_timer_stop (&once->to);	1535	ev_timer_stop (EV_A_ &once->to);
1005	free (once);	1536	ev_free (once);
1006		1537
1007	cb (revents, arg);	1538	cb (revents, arg);
1008	}	1539	}
1009		1540
1010	static void	1541	static void
1011	once_cb_io (struct ev_io *w, int revents)	1542	once_cb_io (EV_P_ struct ev_io *w, int revents)
1012	{	1543	{
1013	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1544	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1014	}	1545	}
1015		1546
1016	static void	1547	static void
1017	once_cb_to (struct ev_timer *w, int revents)	1548	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1018	{	1549	{
1019	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1550	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1020	}	1551	}
1021		1552
1022	void	1553	void
1023	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1554	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1024	{	1555	{
1025	struct ev_once *once = malloc (sizeof (struct ev_once));	1556	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1026		1557
1027	if (!once)	1558	if (!once)
1028	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1559	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1029	else	1560	else
1030	{	1561	{
…		…
1033		1564
1034	ev_watcher_init (&once->io, once_cb_io);	1565	ev_watcher_init (&once->io, once_cb_io);
1035	if (fd >= 0)	1566	if (fd >= 0)
1036	{	1567	{
1037	ev_io_set (&once->io, fd, events);	1568	ev_io_set (&once->io, fd, events);
1038	ev_io_start (&once->io);	1569	ev_io_start (EV_A_ &once->io);
1039	}	1570	}
1040		1571
1041	ev_watcher_init (&once->to, once_cb_to);	1572	ev_watcher_init (&once->to, once_cb_to);
1042	if (timeout >= 0.)	1573	if (timeout >= 0.)
1043	{	1574	{
1044	ev_timer_set (&once->to, timeout, 0.);	1575	ev_timer_set (&once->to, timeout, 0.);
1045	ev_timer_start (&once->to);	1576	ev_timer_start (EV_A_ &once->to);
1046	}	1577	}
1047	}	1578	}
1048	}	1579	}
1049		1580
1050	/*****************************************************************************/
1051
1052	#if 0
1053
1054	struct ev_io wio;
1055
1056	static void
1057	sin_cb (struct ev_io *w, int revents)
1058	{
1059	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1060	}
1061
1062	static void
1063	ocb (struct ev_timer *w, int revents)
1064	{
1065	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1066	ev_timer_stop (w);
1067	ev_timer_start (w);
1068	}
1069
1070	static void
1071	scb (struct ev_signal *w, int revents)
1072	{
1073	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1074	ev_io_stop (&wio);
1075	ev_io_start (&wio);
1076	}
1077
1078	static void
1079	gcb (struct ev_signal *w, int revents)
1080	{
1081	fprintf (stderr, "generic %x\n", revents);
1082
1083	}
1084
1085	int main (void)
1086	{
1087	ev_init (0);
1088
1089	ev_io_init (&wio, sin_cb, 0, EV_READ);
1090	ev_io_start (&wio);
1091
1092	struct ev_timer t[10000];
1093
1094	#if 0
1095	int i;
1096	for (i = 0; i < 10000; ++i)
1097	{
1098	struct ev_timer *w = t + i;
1099	ev_watcher_init (w, ocb, i);
1100	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1101	ev_timer_start (w);
1102	if (drand48 () < 0.5)
1103	ev_timer_stop (w);
1104	}
1105	#endif
1106
1107	struct ev_timer t1;
1108	ev_timer_init (&t1, ocb, 5, 10);
1109	ev_timer_start (&t1);
1110
1111	struct ev_signal sig;
1112	ev_signal_init (&sig, scb, SIGQUIT);
1113	ev_signal_start (&sig);
1114
1115	struct ev_check cw;
1116	ev_check_init (&cw, gcb);
1117	ev_check_start (&cw);
1118
1119	struct ev_idle iw;
1120	ev_idle_init (&iw, gcb);
1121	ev_idle_start (&iw);
1122
1123	ev_loop (0);
1124
1125	return 0;
1126	}
1127
1128	#endif
1129
1130
1131
1132

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Comparing libev/ev.c (file contents): Revision 1.31 by root, Thu Nov 1 09:05:33 2007 UTC vs. Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.31 by root, Thu Nov 1 09:05:33 2007 UTC vs.
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC