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

Comparing libev/ev.c (file contents):
Revision 1.32 by root, Thu Nov 1 09:21:51 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;
168	static int pendingmax, pendingcnt;
169
170	static void
171	event (W w, int events)
172	{
173	if (w->pending)	331	if (w_->pending)
174	{	332	{
175	pendings [w->pending - 1].events \|= events;	333	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
176	return;	334	return;
177	}	335	}
178		336
179	w->pending = ++pendingcnt;	337	w_->pending = ++pendingcnt [ABSPRI (w_)];
180	array_needsize (pendings, pendingmax, pendingcnt, );	338	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
181	pendings [pendingcnt - 1].w = w;	339	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
182	pendings [pendingcnt - 1].events = events;	340	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
183	}	341	}
184		342
185	static void	343	static void
186	queue_events (W *events, int eventcnt, int type)	344	queue_events (EV_P_ W *events, int eventcnt, int type)
187	{	345	{
188	int i;	346	int i;
189		347
190	for (i = 0; i < eventcnt; ++i)	348	for (i = 0; i < eventcnt; ++i)
191	event (events [i], type);	349	ev_feed_event (EV_A_ events [i], type);
192	}	350	}
193		351
194	static void	352	inline void
195	fd_event (int fd, int events)	353	fd_event (EV_P_ int fd, int revents)
196	{	354	{
197	ANFD *anfd = anfds + fd;	355	ANFD *anfd = anfds + fd;
198	struct ev_io *w;	356	struct ev_io *w;
199		357
200	for (w = anfd->head; w; w = w->next)	358	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
201	{	359	{
202	int ev = w->events & events;	360	int ev = w->events & revents;
203		361
204	if (ev)	362	if (ev)
205	event ((W)w, ev);	363	ev_feed_event (EV_A_ (W)w, ev);
206	}	364	}
		365	}
		366
		367	void
		368	ev_feed_fd_event (EV_P_ int fd, int revents)
		369	{
		370	fd_event (EV_A_ fd, revents);
207	}	371	}
208		372
209	/*****************************************************************************/	373	/*****************************************************************************/
210		374
211	static int *fdchanges;
212	static int fdchangemax, fdchangecnt;
213
214	static void	375	static void
215	fd_reify (void)	376	fd_reify (EV_P)
216	{	377	{
217	int i;	378	int i;
218		379
219	for (i = 0; i < fdchangecnt; ++i)	380	for (i = 0; i < fdchangecnt; ++i)
220	{	381	{
…		…
222	ANFD *anfd = anfds + fd;	383	ANFD *anfd = anfds + fd;
223	struct ev_io *w;	384	struct ev_io *w;
224		385
225	int events = 0;	386	int events = 0;
226		387
227	for (w = anfd->head; w; w = w->next)	388	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
228	events \|= w->events;	389	events \|= w->events;
229		390
230	anfd->events &= ~EV_REIFY;	391	anfd->reify = 0;
231		392
232	if (anfd->events != events)
233	{
234	method_modify (fd, anfd->events, events);	393	method_modify (EV_A_ fd, anfd->events, events);
235	anfd->events = events;	394	anfd->events = events;
236	}
237	}	395	}
238		396
239	fdchangecnt = 0;	397	fdchangecnt = 0;
240	}	398	}
241		399
242	static void	400	static void
243	fd_change (int fd)	401	fd_change (EV_P_ int fd)
244	{	402	{
245	if (anfds [fd].events & EV_REIFY \|\| fdchangecnt < 0)	403	if (anfds [fd].reify)
246	return;	404	return;
247		405
248	anfds [fd].events \|= EV_REIFY;	406	anfds [fd].reify = 1;
249		407
250	++fdchangecnt;	408	++fdchangecnt;
251	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	409	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
252	fdchanges [fdchangecnt - 1] = fd;	410	fdchanges [fdchangecnt - 1] = fd;
253	}	411	}
254		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
255	/* called on EBADF to verify fds */	435	/* called on EBADF to verify fds */
256	static void	436	static void
257	fd_recheck (void)	437	fd_ebadf (EV_P)
258	{	438	{
259	int fd;	439	int fd;
260		440
261	for (fd = 0; fd < anfdmax; ++fd)	441	for (fd = 0; fd < anfdmax; ++fd)
262	if (anfds [fd].events)	442	if (anfds [fd].events)
263	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	443	if (!fd_valid (fd) == -1 && errno == EBADF)
264	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)
265	{	455	{
266	ev_io_stop (anfds [fd].head);	456	fd_kill (EV_A_ fd);
267	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT);	457	return;
268	}	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	}
269	}	474	}
270		475
271	/*****************************************************************************/	476	/*****************************************************************************/
272		477
273	static struct ev_timer **timers;
274	static int timermax, timercnt;
275
276	static struct ev_periodic **periodics;
277	static int periodicmax, periodiccnt;
278
279	static void	478	static void
280	upheap (WT *timers, int k)	479	upheap (WT *heap, int k)
281	{	480	{
282	WT w = timers [k];	481	WT w = heap [k];
283		482
284	while (k && timers [k >> 1]->at > w->at)	483	while (k && heap [k >> 1]->at > w->at)
285	{	484	{
286	timers [k] = timers [k >> 1];	485	heap [k] = heap [k >> 1];
287	timers [k]->active = k + 1;	486	((W)heap [k])->active = k + 1;
288	k >>= 1;	487	k >>= 1;
289	}	488	}
290		489
291	timers [k] = w;	490	heap [k] = w;
292	timers [k]->active = k + 1;	491	((W)heap [k])->active = k + 1;
293		492
294	}	493	}
295		494
296	static void	495	static void
297	downheap (WT *timers, int N, int k)	496	downheap (WT *heap, int N, int k)
298	{	497	{
299	WT w = timers [k];	498	WT w = heap [k];
300		499
301	while (k < (N >> 1))	500	while (k < (N >> 1))
302	{	501	{
303	int j = k << 1;	502	int j = k << 1;
304		503
305	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	504	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
306	++j;	505	++j;
307		506
308	if (w->at <= timers [j]->at)	507	if (w->at <= heap [j]->at)
309	break;	508	break;
310		509
311	timers [k] = timers [j];	510	heap [k] = heap [j];
312	timers [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
313	k = j;	512	k = j;
314	}	513	}
315		514
316	timers [k] = w;	515	heap [k] = w;
317	timers [k]->active = k + 1;	516	((W)heap [k])->active = k + 1;
318	}	517	}
319		518
320	/*****************************************************************************/	519	/*****************************************************************************/
321		520
322	typedef struct	521	typedef struct
323	{	522	{
324	struct ev_signal *head;	523	WL head;
325	sig_atomic_t gotsig;	524	sig_atomic_t volatile gotsig;
326	} ANSIG;	525	} ANSIG;
327		526
328	static ANSIG *signals;	527	static ANSIG *signals;
329	static int signalmax;	528	static int signalmax;
330		529
331	static int sigpipe [2];	530	static int sigpipe [2];
332	static sig_atomic_t gotsig;	531	static sig_atomic_t volatile gotsig;
333	static struct ev_io sigev;	532	static struct ev_io sigev;
334		533
335	static void	534	static void
336	signals_init (ANSIG *base, int count)	535	signals_init (ANSIG *base, int count)
337	{	536	{
338	while (count--)	537	while (count--)
339	{	538	{
340	base->head = 0;	539	base->head = 0;
341	base->gotsig = 0;	540	base->gotsig = 0;
		541
342	++base;	542	++base;
343	}	543	}
344	}	544	}
345		545
346	static void	546	static void
347	sighandler (int signum)	547	sighandler (int signum)
348	{	548	{
		549	#if WIN32
		550	signal (signum, sighandler);
		551	#endif
		552
349	signals [signum - 1].gotsig = 1;	553	signals [signum - 1].gotsig = 1;
350		554
351	if (!gotsig)	555	if (!gotsig)
352	{	556	{
		557	int old_errno = errno;
353	gotsig = 1;	558	gotsig = 1;
		559	#ifdef WIN32
		560	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		561	#else
354	write (sigpipe [1], &gotsig, 1);	562	write (sigpipe [1], &signum, 1);
		563	#endif
		564	errno = old_errno;
355	}	565	}
356	}	566	}
357		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
358	static void	588	static void
359	sigcb (struct ev_io *iow, int revents)	589	sigcb (EV_P_ struct ev_io *iow, int revents)
360	{	590	{
361	struct ev_signal *w;
362	int sig;	591	int signum;
363		592
		593	#ifdef WIN32
		594	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		595	#else
		596	read (sigpipe [0], &revents, 1);
		597	#endif
364	gotsig = 0;	598	gotsig = 0;
365	read (sigpipe [0], &revents, 1);
366		599
367	for (sig = signalmax; sig--; )	600	for (signum = signalmax; signum--; )
368	if (signals [sig].gotsig)	601	if (signals [signum].gotsig)
369	{	602	ev_feed_signal_event (EV_A_ signum + 1);
370	signals [sig].gotsig = 0;
371
372	for (w = signals [sig].head; w; w = w->next)
373	event ((W)w, EV_SIGNAL);
374	}
375	}	603	}
376		604
377	static void	605	static void
378	siginit (void)	606	siginit (EV_P)
379	{	607	{
		608	#ifndef WIN32
380	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	609	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
381	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	610	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
382		611
383	/* rather than sort out wether we really need nb, set it */	612	/* rather than sort out wether we really need nb, set it */
384	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	613	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
385	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	614	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		615	#endif
386		616
387	ev_io_set (&sigev, sigpipe [0], EV_READ);	617	ev_io_set (&sigev, sigpipe [0], EV_READ);
388	ev_io_start (&sigev);	618	ev_io_start (EV_A_ &sigev);
		619	ev_unref (EV_A); /* child watcher should not keep loop alive */
389	}	620	}
390		621
391	/*****************************************************************************/	622	/*****************************************************************************/
392		623
393	static struct ev_idle **idles;
394	static int idlemax, idlecnt;
395
396	static struct ev_prepare **prepares;
397	static int preparemax, preparecnt;
398
399	static struct ev_check **checks;
400	static int checkmax, checkcnt;
401
402	/*****************************************************************************/
403
404	static struct ev_child *childs [PID_HASHSIZE];	624	static struct ev_child *childs [PID_HASHSIZE];
		625
		626	#ifndef WIN32
		627
405	static struct ev_signal childev;	628	static struct ev_signal childev;
406		629
407	#ifndef WCONTINUED	630	#ifndef WCONTINUED
408	# define WCONTINUED 0	631	# define WCONTINUED 0
409	#endif	632	#endif
410		633
411	static void	634	static void
412	childcb (struct ev_signal *sw, int revents)	635	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
413	{	636	{
414	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	{
415	int pid, status;	652	int pid, status;
416		653
417	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	654	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
418	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	655	{
419	if (w->pid == pid \|\| w->pid == -1)	656	/* make sure we are called again until all childs have been reaped */
420	{	657	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
421	w->status = status;	658
422	event ((W)w, EV_CHILD);	659	child_reap (EV_A_ sw, pid, pid, status);
423	}	660	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		661	}
424	}	662	}
		663
		664	#endif
425		665
426	/*****************************************************************************/	666	/*****************************************************************************/
427		667
		668	#if EV_USE_KQUEUE
		669	# include "ev_kqueue.c"
		670	#endif
428	#if EV_USE_EPOLL	671	#if EV_USE_EPOLL
429	# include "ev_epoll.c"	672	# include "ev_epoll.c"
430	#endif	673	#endif
		674	#if EV_USE_POLL
		675	# include "ev_poll.c"
		676	#endif
431	#if EV_USE_SELECT	677	#if EV_USE_SELECT
432	# include "ev_select.c"	678	# include "ev_select.c"
433	#endif	679	#endif
434		680
435	int	681	int
…		…
442	ev_version_minor (void)	688	ev_version_minor (void)
443	{	689	{
444	return EV_VERSION_MINOR;	690	return EV_VERSION_MINOR;
445	}	691	}
446		692
447	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)
448	{	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	{
449	if (!ev_method)	714	if (!method)
450	{	715	{
451	#if EV_USE_MONOTONIC	716	#if EV_USE_MONOTONIC
452	{	717	{
453	struct timespec ts;	718	struct timespec ts;
454	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	719	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
455	have_monotonic = 1;	720	have_monotonic = 1;
456	}	721	}
457	#endif	722	#endif
458		723
459	ev_now = ev_time ();	724	rt_now = ev_time ();
460	now = get_clock ();	725	mn_now = get_clock ();
		726	now_floor = mn_now;
461	diff = ev_now - now;	727	rtmn_diff = rt_now - mn_now;
462		728
463	if (pipe (sigpipe))	729	if (methods == EVMETHOD_AUTO)
464	return 0;	730	if (!enable_secure () && getenv ("LIBEV_METHODS"))
465		731	methods = atoi (getenv ("LIBEV_METHODS"));
		732	else
466	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
467	#if EV_USE_EPOLL	742	#if EV_USE_EPOLL
468	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);
469	#endif	747	#endif
470	#if EV_USE_SELECT	748	#if EV_USE_SELECT
471	if (ev_method == EVMETHOD_NONE) select_init (flags);	749	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
472	#endif	750	#endif
473		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
474	if (ev_method)	872	if (ev_method (EV_A))
475	{	873	{
476	ev_watcher_init (&sigev, sigcb);
477	siginit ();	874	siginit (EV_A);
478		875
		876	#ifndef WIN32
479	ev_signal_init (&childev, childcb, SIGCHLD);	877	ev_signal_init (&childev, childcb, SIGCHLD);
		878	ev_set_priority (&childev, EV_MAXPRI);
480	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
481	}	882	}
		883	else
		884	default_loop = 0;
482	}	885	}
483		886
484	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;
485	}	920	}
486		921
487	/*****************************************************************************/	922	/*****************************************************************************/
488		923
489	void
490	ev_prefork (void)
491	{
492	/* nop */
493	}
494
495	void
496	ev_postfork_parent (void)
497	{
498	/* nop */
499	}
500
501	void
502	ev_postfork_child (void)
503	{
504	#if EV_USE_EPOLL
505	if (ev_method == EVMETHOD_EPOLL)
506	epoll_postfork_child ();
507	#endif
508
509	ev_io_stop (&sigev);
510	close (sigpipe [0]);
511	close (sigpipe [1]);
512	pipe (sigpipe);
513	siginit ();
514	}
515
516	/*****************************************************************************/
517
518	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
519	call_pending (void)	937	call_pending (EV_P)
520	{	938	{
		939	int pri;
		940
		941	for (pri = NUMPRI; pri--; )
521	while (pendingcnt)	942	while (pendingcnt [pri])
522	{	943	{
523	ANPENDING *p = pendings + --pendingcnt;	944	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
524		945
525	if (p->w)	946	if (p->w)
526	{	947	{
527	p->w->pending = 0;	948	p->w->pending = 0;
528	p->w->cb (p->w, p->events);	949	p->w->cb (EV_A_ p->w, p->events);
529	}	950	}
530	}	951	}
531	}	952	}
532		953
533	static void	954	static void
534	timers_reify (void)	955	timers_reify (EV_P)
535	{	956	{
536	while (timercnt && timers [0]->at <= now)	957	while (timercnt && ((WT)timers [0])->at <= mn_now)
537	{	958	{
538	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)));
539		962
540	/* first reschedule or stop timer */	963	/* first reschedule or stop timer */
541	if (w->repeat)	964	if (w->repeat)
542	{	965	{
		966	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
543	w->at = now + w->repeat;	967	((WT)w)->at = mn_now + w->repeat;
544	assert (("timer timeout in the past, negative repeat?", w->at > now));
545	downheap ((WT *)timers, timercnt, 0);	968	downheap ((WT *)timers, timercnt, 0);
546	}	969	}
547	else	970	else
548	ev_timer_stop (w); /* nonrepeating: stop timer */	971	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
549		972
550	event ((W)w, EV_TIMEOUT);	973	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
551	}	974	}
552	}	975	}
553		976
554	static void	977	static void
555	periodics_reify (void)	978	periodics_reify (EV_P)
556	{	979	{
557	while (periodiccnt && periodics [0]->at <= ev_now)	980	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
558	{	981	{
559	struct ev_periodic *w = periodics [0];	982	struct ev_periodic *w = periodics [0];
560		983
		984	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		985
561	/* first reschedule or stop timer */	986	/* first reschedule or stop timer */
562	if (w->interval)	987	if (w->reschedule_cb)
563	{	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	{
564	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;
565	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));
566	downheap ((WT *)periodics, periodiccnt, 0);	998	downheap ((WT *)periodics, periodiccnt, 0);
567	}	999	}
568	else	1000	else
569	ev_periodic_stop (w); /* nonrepeating: stop timer */	1001	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
570		1002
571	event ((W)w, EV_TIMEOUT);	1003	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
572	}	1004	}
573	}	1005	}
574		1006
575	static void	1007	static void
576	periodics_reschedule (ev_tstamp diff)	1008	periodics_reschedule (EV_P)
577	{	1009	{
578	int i;	1010	int i;
579		1011
580	/* adjust periodics after time jump */	1012	/* adjust periodics after time jump */
581	for (i = 0; i < periodiccnt; ++i)	1013	for (i = 0; i < periodiccnt; ++i)
582	{	1014	{
583	struct ev_periodic *w = periodics [i];	1015	struct ev_periodic *w = periodics [i];
584		1016
		1017	if (w->reschedule_cb)
		1018	((WT)w)->at = w->reschedule_cb (w, rt_now);
585	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))
586	{	1055	{
587	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1056	ev_tstamp odiff = rtmn_diff;
588		1057
589	if (fabs (diff) >= 1e-4)	1058	for (i = 4; --i; ) /* loop a few times, before making important decisions */
590	{	1059	{
591	ev_periodic_stop (w);	1060	rtmn_diff = rt_now - mn_now;
592	ev_periodic_start (w);
593		1061
594	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;
595	}	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) */
596	}	1073	}
597	}	1074	}
598	}	1075	else
599		1076	#endif
600	static void	1077	{
601	time_update (void)
602	{
603	int i;
604
605	ev_now = ev_time ();	1078	rt_now = ev_time ();
606		1079
607	if (have_monotonic)	1080	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
608	{
609	ev_tstamp odiff = diff;
610
611	for (i = 4; --i; ) /* loop a few times, before making important decisions */
612	{	1081	{
613	now = get_clock ();
614	diff = ev_now - now;
615
616	if (fabs (odiff - diff) < MIN_TIMEJUMP)
617	return; /* all is well */
618
619	ev_now = ev_time ();
620	}
621
622	periodics_reschedule (diff - odiff);
623	/* no timer adjustment, as the monotonic clock doesn't jump */
624	}
625	else
626	{
627	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)
628	{
629	periodics_reschedule (ev_now - now);	1082	periodics_reschedule (EV_A);
630		1083
631	/* 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 */
632	for (i = 0; i < timercnt; ++i)	1085	for (i = 0; i < timercnt; ++i)
633	timers [i]->at += diff;	1086	((WT)timers [i])->at += rt_now - mn_now;
634	}	1087	}
635		1088
636	now = ev_now;	1089	mn_now = rt_now;
637	}	1090	}
638	}	1091	}
639		1092
640	int ev_loop_done;	1093	void
		1094	ev_ref (EV_P)
		1095	{
		1096	++activecnt;
		1097	}
641		1098
		1099	void
		1100	ev_unref (EV_P)
		1101	{
		1102	--activecnt;
		1103	}
		1104
		1105	static int loop_done;
		1106
		1107	void
642	void ev_loop (int flags)	1108	ev_loop (EV_P_ int flags)
643	{	1109	{
644	double block;	1110	double block;
645	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1111	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
646		1112
647	do	1113	do
648	{	1114	{
649	/* queue check watchers (and execute them) */	1115	/* queue check watchers (and execute them) */
650	if (preparecnt)	1116	if (expect_false (preparecnt))
651	{	1117	{
652	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1118	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
653	call_pending ();	1119	call_pending (EV_A);
654	}	1120	}
655		1121
		1122	/* we might have forked, so reify kernel state if necessary */
		1123	if (expect_false (postfork))
		1124	loop_fork (EV_A);
		1125
656	/* update fd-related kernel structures */	1126	/* update fd-related kernel structures */
657	fd_reify ();	1127	fd_reify (EV_A);
658		1128
659	/* calculate blocking time */	1129	/* calculate blocking time */
660		1130
661	/* 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
662	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	{
663	ev_now = ev_time ();	1139	rt_now = ev_time ();
		1140	mn_now = rt_now;
		1141	}
664		1142
665	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1143	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
666	block = 0.;	1144	block = 0.;
667	else	1145	else
668	{	1146	{
669	block = MAX_BLOCKTIME;	1147	block = MAX_BLOCKTIME;
670		1148
671	if (timercnt)	1149	if (timercnt)
672	{	1150	{
673	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;
674	if (block > to) block = to;	1152	if (block > to) block = to;
675	}	1153	}
676		1154
677	if (periodiccnt)	1155	if (periodiccnt)
678	{	1156	{
679	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1157	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
680	if (block > to) block = to;	1158	if (block > to) block = to;
681	}	1159	}
682		1160
683	if (block < 0.) block = 0.;	1161	if (block < 0.) block = 0.;
684	}	1162	}
685		1163
686	method_poll (block);	1164	method_poll (EV_A_ block);
687		1165
688	/* update ev_now, do magic */	1166	/* update rt_now, do magic */
689	time_update ();	1167	time_update (EV_A);
690		1168
691	/* queue pending timers and reschedule them */	1169	/* queue pending timers and reschedule them */
692	timers_reify (); /* relative timers called last */	1170	timers_reify (EV_A); /* relative timers called last */
693	periodics_reify (); /* absolute timers called first */	1171	periodics_reify (EV_A); /* absolute timers called first */
694		1172
695	/* queue idle watchers unless io or timers are pending */	1173	/* queue idle watchers unless io or timers are pending */
696	if (!pendingcnt)	1174	if (idlecnt && !any_pending (EV_A))
697	queue_events ((W *)idles, idlecnt, EV_IDLE);	1175	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
698		1176
699	/* queue check watchers, to be executed first */	1177	/* queue check watchers, to be executed first */
700	if (checkcnt)	1178	if (checkcnt)
701	queue_events ((W *)checks, checkcnt, EV_CHECK);	1179	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
702		1180
703	call_pending ();	1181	call_pending (EV_A);
704	}	1182	}
705	while (!ev_loop_done);	1183	while (activecnt && !loop_done);
706		1184
707	if (ev_loop_done != 2)	1185	if (loop_done != 2)
708	ev_loop_done = 0;	1186	loop_done = 0;
		1187	}
		1188
		1189	void
		1190	ev_unloop (EV_P_ int how)
		1191	{
		1192	loop_done = how;
709	}	1193	}
710		1194
711	/*****************************************************************************/	1195	/*****************************************************************************/
712		1196
713	static void	1197	inline void
714	wlist_add (WL *head, WL elem)	1198	wlist_add (WL *head, WL elem)
715	{	1199	{
716	elem->next = *head;	1200	elem->next = *head;
717	*head = elem;	1201	*head = elem;
718	}	1202	}
719		1203
720	static void	1204	inline void
721	wlist_del (WL *head, WL elem)	1205	wlist_del (WL *head, WL elem)
722	{	1206	{
723	while (*head)	1207	while (*head)
724	{	1208	{
725	if (*head == elem)	1209	if (*head == elem)
…		…
730		1214
731	head = &(*head)->next;	1215	head = &(*head)->next;
732	}	1216	}
733	}	1217	}
734		1218
735	static void	1219	inline void
736	ev_clear (W w)	1220	ev_clear_pending (EV_P_ W w)
737	{	1221	{
738	if (w->pending)	1222	if (w->pending)
739	{	1223	{
740	pendings [w->pending - 1].w = 0;	1224	pendings [ABSPRI (w)][w->pending - 1].w = 0;
741	w->pending = 0;	1225	w->pending = 0;
742	}	1226	}
743	}	1227	}
744		1228
745	static void	1229	inline void
746	ev_start (W w, int active)	1230	ev_start (EV_P_ W w, int active)
747	{	1231	{
		1232	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1233	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1234
748	w->active = active;	1235	w->active = active;
		1236	ev_ref (EV_A);
749	}	1237	}
750		1238
751	static void	1239	inline void
752	ev_stop (W w)	1240	ev_stop (EV_P_ W w)
753	{	1241	{
		1242	ev_unref (EV_A);
754	w->active = 0;	1243	w->active = 0;
755	}	1244	}
756		1245
757	/*****************************************************************************/	1246	/*****************************************************************************/
758		1247
759	void	1248	void
760	ev_io_start (struct ev_io *w)	1249	ev_io_start (EV_P_ struct ev_io *w)
761	{	1250	{
		1251	int fd = w->fd;
		1252
762	if (ev_is_active (w))	1253	if (ev_is_active (w))
763	return;	1254	return;
764		1255
765	int fd = w->fd;	1256	assert (("ev_io_start called with negative fd", fd >= 0));
766		1257
767	ev_start ((W)w, 1);	1258	ev_start (EV_A_ (W)w, 1);
768	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1259	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
769	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1260	wlist_add ((WL *)&anfds[fd].head, (WL)w);
770		1261
771	fd_change (fd);	1262	fd_change (EV_A_ fd);
772	}	1263	}
773		1264
774	void	1265	void
775	ev_io_stop (struct ev_io *w)	1266	ev_io_stop (EV_P_ struct ev_io *w)
776	{	1267	{
777	ev_clear ((W)w);	1268	ev_clear_pending (EV_A_ (W)w);
778	if (!ev_is_active (w))	1269	if (!ev_is_active (w))
779	return;	1270	return;
780		1271
781	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1272	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
782	ev_stop ((W)w);	1273	ev_stop (EV_A_ (W)w);
783		1274
784	fd_change (w->fd);	1275	fd_change (EV_A_ w->fd);
785	}	1276	}
786		1277
787	void	1278	void
788	ev_timer_start (struct ev_timer *w)	1279	ev_timer_start (EV_P_ struct ev_timer *w)
789	{	1280	{
790	if (ev_is_active (w))	1281	if (ev_is_active (w))
791	return;	1282	return;
792		1283
793	w->at += now;	1284	((WT)w)->at += mn_now;
794		1285
795	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.));
796		1287
797	ev_start ((W)w, ++timercnt);	1288	ev_start (EV_A_ (W)w, ++timercnt);
798	array_needsize (timers, timermax, timercnt, );	1289	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
799	timers [timercnt - 1] = w;	1290	timers [timercnt - 1] = w;
800	upheap ((WT *)timers, timercnt - 1);	1291	upheap ((WT *)timers, timercnt - 1);
801	}
802		1292
		1293	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1294	}
		1295
803	void	1296	void
804	ev_timer_stop (struct ev_timer *w)	1297	ev_timer_stop (EV_P_ struct ev_timer *w)
805	{	1298	{
806	ev_clear ((W)w);	1299	ev_clear_pending (EV_A_ (W)w);
807	if (!ev_is_active (w))	1300	if (!ev_is_active (w))
808	return;	1301	return;
809		1302
		1303	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1304
810	if (w->active < timercnt--)	1305	if (((W)w)->active < timercnt--)
811	{	1306	{
812	timers [w->active - 1] = timers [timercnt];	1307	timers [((W)w)->active - 1] = timers [timercnt];
813	downheap ((WT *)timers, timercnt, w->active - 1);	1308	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
814	}	1309	}
815		1310
816	w->at = w->repeat;	1311	((WT)w)->at = w->repeat;
817		1312
818	ev_stop ((W)w);	1313	ev_stop (EV_A_ (W)w);
819	}	1314	}
820		1315
821	void	1316	void
822	ev_timer_again (struct ev_timer *w)	1317	ev_timer_again (EV_P_ struct ev_timer *w)
823	{	1318	{
824	if (ev_is_active (w))	1319	if (ev_is_active (w))
825	{	1320	{
826	if (w->repeat)	1321	if (w->repeat)
827	{	1322	{
828	w->at = now + w->repeat;	1323	((WT)w)->at = mn_now + w->repeat;
829	downheap ((WT *)timers, timercnt, w->active - 1);	1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
830	}	1325	}
831	else	1326	else
832	ev_timer_stop (w);	1327	ev_timer_stop (EV_A_ w);
833	}	1328	}
834	else if (w->repeat)	1329	else if (w->repeat)
835	ev_timer_start (w);	1330	ev_timer_start (EV_A_ w);
836	}	1331	}
837		1332
838	void	1333	void
839	ev_periodic_start (struct ev_periodic *w)	1334	ev_periodic_start (EV_P_ struct ev_periodic *w)
840	{	1335	{
841	if (ev_is_active (w))	1336	if (ev_is_active (w))
842	return;	1337	return;
843		1338
844	assert (("periodic interval value less than zero not allowed", w->interval >= 0.));	1339	if (w->reschedule_cb)
845		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.));
846	/* 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 */
847	if (w->interval)
848	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	}
849		1347
850	ev_start ((W)w, ++periodiccnt);	1348	ev_start (EV_A_ (W)w, ++periodiccnt);
851	array_needsize (periodics, periodicmax, periodiccnt, );	1349	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
852	periodics [periodiccnt - 1] = w;	1350	periodics [periodiccnt - 1] = w;
853	upheap ((WT *)periodics, periodiccnt - 1);	1351	upheap ((WT *)periodics, periodiccnt - 1);
854	}
855		1352
		1353	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1354	}
		1355
856	void	1356	void
857	ev_periodic_stop (struct ev_periodic *w)	1357	ev_periodic_stop (EV_P_ struct ev_periodic *w)
858	{	1358	{
859	ev_clear ((W)w);	1359	ev_clear_pending (EV_A_ (W)w);
860	if (!ev_is_active (w))	1360	if (!ev_is_active (w))
861	return;	1361	return;
862		1362
		1363	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1364
863	if (w->active < periodiccnt--)	1365	if (((W)w)->active < periodiccnt--)
864	{	1366	{
865	periodics [w->active - 1] = periodics [periodiccnt];	1367	periodics [((W)w)->active - 1] = periodics [periodiccnt];
866	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1368	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
867	}	1369	}
868		1370
869	ev_stop ((W)w);	1371	ev_stop (EV_A_ (W)w);
870	}	1372	}
871		1373
872	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
873	ev_signal_start (struct ev_signal *w)	1382	ev_idle_start (EV_P_ struct ev_idle *w)
874	{	1383	{
875	if (ev_is_active (w))	1384	if (ev_is_active (w))
876	return;	1385	return;
877		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
878	ev_start ((W)w, 1);	1462	ev_start (EV_A_ (W)w, 1);
879	array_needsize (signals, signalmax, w->signum, signals_init);	1463	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
880	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1464	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
881		1465
882	if (!w->next)	1466	if (!((WL)w)->next)
883	{	1467	{
		1468	#if WIN32
		1469	signal (w->signum, sighandler);
		1470	#else
884	struct sigaction sa;	1471	struct sigaction sa;
885	sa.sa_handler = sighandler;	1472	sa.sa_handler = sighandler;
886	sigfillset (&sa.sa_mask);	1473	sigfillset (&sa.sa_mask);
887	sa.sa_flags = 0;	1474	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
888	sigaction (w->signum, &sa, 0);	1475	sigaction (w->signum, &sa, 0);
		1476	#endif
889	}	1477	}
890	}	1478	}
891		1479
892	void	1480	void
893	ev_signal_stop (struct ev_signal *w)	1481	ev_signal_stop (EV_P_ struct ev_signal *w)
894	{	1482	{
895	ev_clear ((W)w);	1483	ev_clear_pending (EV_A_ (W)w);
896	if (!ev_is_active (w))	1484	if (!ev_is_active (w))
897	return;	1485	return;
898		1486
899	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1487	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
900	ev_stop ((W)w);	1488	ev_stop (EV_A_ (W)w);
901		1489
902	if (!signals [w->signum - 1].head)	1490	if (!signals [w->signum - 1].head)
903	signal (w->signum, SIG_DFL);	1491	signal (w->signum, SIG_DFL);
904	}	1492	}
905		1493
906	void	1494	void
907	ev_idle_start (struct ev_idle *w)	1495	ev_child_start (EV_P_ struct ev_child *w)
908	{	1496	{
		1497	#if EV_MULTIPLICITY
		1498	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1499	#endif
909	if (ev_is_active (w))	1500	if (ev_is_active (w))
910	return;	1501	return;
911		1502
912	ev_start ((W)w, ++idlecnt);	1503	ev_start (EV_A_ (W)w, 1);
913	array_needsize (idles, idlemax, idlecnt, );	1504	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
914	idles [idlecnt - 1] = w;
915	}	1505	}
916		1506
917	void	1507	void
918	ev_idle_stop (struct ev_idle *w)	1508	ev_child_stop (EV_P_ struct ev_child *w)
919	{	1509	{
920	ev_clear ((W)w);	1510	ev_clear_pending (EV_A_ (W)w);
921	if (ev_is_active (w))	1511	if (ev_is_active (w))
922	return;	1512	return;
923		1513
924	idles [w->active - 1] = idles [--idlecnt];
925	ev_stop ((W)w);
926	}
927
928	void
929	ev_prepare_start (struct ev_prepare *w)
930	{
931	if (ev_is_active (w))
932	return;
933
934	ev_start ((W)w, ++preparecnt);
935	array_needsize (prepares, preparemax, preparecnt, );
936	prepares [preparecnt - 1] = w;
937	}
938
939	void
940	ev_prepare_stop (struct ev_prepare *w)
941	{
942	ev_clear ((W)w);
943	if (ev_is_active (w))
944	return;
945
946	prepares [w->active - 1] = prepares [--preparecnt];
947	ev_stop ((W)w);
948	}
949
950	void
951	ev_check_start (struct ev_check *w)
952	{
953	if (ev_is_active (w))
954	return;
955
956	ev_start ((W)w, ++checkcnt);
957	array_needsize (checks, checkmax, checkcnt, );
958	checks [checkcnt - 1] = w;
959	}
960
961	void
962	ev_check_stop (struct ev_check *w)
963	{
964	ev_clear ((W)w);
965	if (ev_is_active (w))
966	return;
967
968	checks [w->active - 1] = checks [--checkcnt];
969	ev_stop ((W)w);
970	}
971
972	void
973	ev_child_start (struct ev_child *w)
974	{
975	if (ev_is_active (w))
976	return;
977
978	ev_start ((W)w, 1);
979	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
980	}
981
982	void
983	ev_child_stop (struct ev_child *w)
984	{
985	ev_clear ((W)w);
986	if (ev_is_active (w))
987	return;
988
989	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1514	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
990	ev_stop ((W)w);	1515	ev_stop (EV_A_ (W)w);
991	}	1516	}
992		1517
993	/*****************************************************************************/	1518	/*****************************************************************************/
994		1519
995	struct ev_once	1520	struct ev_once
…		…
999	void (cb)(int revents, void arg);	1524	void (cb)(int revents, void arg);
1000	void *arg;	1525	void *arg;
1001	};	1526	};
1002		1527
1003	static void	1528	static void
1004	once_cb (struct ev_once *once, int revents)	1529	once_cb (EV_P_ struct ev_once *once, int revents)
1005	{	1530	{
1006	void (cb)(int revents, void arg) = once->cb;	1531	void (cb)(int revents, void arg) = once->cb;
1007	void *arg = once->arg;	1532	void *arg = once->arg;
1008		1533
1009	ev_io_stop (&once->io);	1534	ev_io_stop (EV_A_ &once->io);
1010	ev_timer_stop (&once->to);	1535	ev_timer_stop (EV_A_ &once->to);
1011	free (once);	1536	ev_free (once);
1012		1537
1013	cb (revents, arg);	1538	cb (revents, arg);
1014	}	1539	}
1015		1540
1016	static void	1541	static void
1017	once_cb_io (struct ev_io *w, int revents)	1542	once_cb_io (EV_P_ struct ev_io *w, int revents)
1018	{	1543	{
1019	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);
1020	}	1545	}
1021		1546
1022	static void	1547	static void
1023	once_cb_to (struct ev_timer *w, int revents)	1548	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1024	{	1549	{
1025	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);
1026	}	1551	}
1027		1552
1028	void	1553	void
1029	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)
1030	{	1555	{
1031	struct ev_once *once = malloc (sizeof (struct ev_once));	1556	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1032		1557
1033	if (!once)	1558	if (!once)
1034	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1559	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1035	else	1560	else
1036	{	1561	{
…		…
1039		1564
1040	ev_watcher_init (&once->io, once_cb_io);	1565	ev_watcher_init (&once->io, once_cb_io);
1041	if (fd >= 0)	1566	if (fd >= 0)
1042	{	1567	{
1043	ev_io_set (&once->io, fd, events);	1568	ev_io_set (&once->io, fd, events);
1044	ev_io_start (&once->io);	1569	ev_io_start (EV_A_ &once->io);
1045	}	1570	}
1046		1571
1047	ev_watcher_init (&once->to, once_cb_to);	1572	ev_watcher_init (&once->to, once_cb_to);
1048	if (timeout >= 0.)	1573	if (timeout >= 0.)
1049	{	1574	{
1050	ev_timer_set (&once->to, timeout, 0.);	1575	ev_timer_set (&once->to, timeout, 0.);
1051	ev_timer_start (&once->to);	1576	ev_timer_start (EV_A_ &once->to);
1052	}	1577	}
1053	}	1578	}
1054	}	1579	}
1055		1580
1056	/*****************************************************************************/
1057
1058	#if 0
1059
1060	struct ev_io wio;
1061
1062	static void
1063	sin_cb (struct ev_io *w, int revents)
1064	{
1065	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1066	}
1067
1068	static void
1069	ocb (struct ev_timer *w, int revents)
1070	{
1071	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1072	ev_timer_stop (w);
1073	ev_timer_start (w);
1074	}
1075
1076	static void
1077	scb (struct ev_signal *w, int revents)
1078	{
1079	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1080	ev_io_stop (&wio);
1081	ev_io_start (&wio);
1082	}
1083
1084	static void
1085	gcb (struct ev_signal *w, int revents)
1086	{
1087	fprintf (stderr, "generic %x\n", revents);
1088
1089	}
1090
1091	int main (void)
1092	{
1093	ev_init (0);
1094
1095	ev_io_init (&wio, sin_cb, 0, EV_READ);
1096	ev_io_start (&wio);
1097
1098	struct ev_timer t[10000];
1099
1100	#if 0
1101	int i;
1102	for (i = 0; i < 10000; ++i)
1103	{
1104	struct ev_timer *w = t + i;
1105	ev_watcher_init (w, ocb, i);
1106	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1107	ev_timer_start (w);
1108	if (drand48 () < 0.5)
1109	ev_timer_stop (w);
1110	}
1111	#endif
1112
1113	struct ev_timer t1;
1114	ev_timer_init (&t1, ocb, 5, 10);
1115	ev_timer_start (&t1);
1116
1117	struct ev_signal sig;
1118	ev_signal_init (&sig, scb, SIGQUIT);
1119	ev_signal_start (&sig);
1120
1121	struct ev_check cw;
1122	ev_check_init (&cw, gcb);
1123	ev_check_start (&cw);
1124
1125	struct ev_idle iw;
1126	ev_idle_init (&iw, gcb);
1127	ev_idle_start (&iw);
1128
1129	ev_loop (0);
1130
1131	return 0;
1132	}
1133
1134	#endif
1135
1136
1137
1138

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Comparing libev/ev.c (file contents): Revision 1.32 by root, Thu Nov 1 09:21:51 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 1.32 by root, Thu Nov 1 09:21:51 2007 UTC vs.
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC