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

Comparing libev/ev.c (file contents):
Revision 1.30 by root, Thu Nov 1 08:28:33 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
63	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
64	# define EV_USE_REALTIME 1 /* posix requirement, but might be slower */	109	# define EV_USE_REALTIME 1
65	#endif	110	#endif
		111
		112	/**/
		113
		114	#ifndef CLOCK_MONOTONIC
		115	# undef EV_USE_MONOTONIC
		116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
		119	#ifndef CLOCK_REALTIME
		120	# undef EV_USE_REALTIME
		121	# define EV_USE_REALTIME 0
		122	#endif
		123
		124	/**/
66		125
67	#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) */
68	#define MAX_BLOCKTIME 59.731	127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
69	#define PID_HASHSIZE 16 /* size of pid hahs table, must be power of two */	128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
		129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
70		130
71	#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)
72		146
73	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
74	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
75	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
76		150
77	static ev_tstamp now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
78	ev_tstamp ev_now;
79	int ev_method;
80		152
81	static int have_monotonic; /* runtime */	153	#include "ev_win32.c"
82
83	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
84	static void (*method_modify)(int fd, int oev, int nev);
85	static void (*method_poll)(ev_tstamp timeout);
86		154
87	/*****************************************************************************/	155	/*****************************************************************************/
88		156
89	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
90	ev_time (void)	244	ev_time (void)
91	{	245	{
92	#if EV_USE_REALTIME	246	#if EV_USE_REALTIME
93	struct timespec ts;	247	struct timespec ts;
94	clock_gettime (CLOCK_REALTIME, &ts);	248	clock_gettime (CLOCK_REALTIME, &ts);
…		…
98	gettimeofday (&tv, 0);	252	gettimeofday (&tv, 0);
99	return tv.tv_sec + tv.tv_usec * 1e-6;	253	return tv.tv_sec + tv.tv_usec * 1e-6;
100	#endif	254	#endif
101	}	255	}
102		256
103	static ev_tstamp	257	inline ev_tstamp
104	get_clock (void)	258	get_clock (void)
105	{	259	{
106	#if EV_USE_MONOTONIC	260	#if EV_USE_MONOTONIC
107	if (have_monotonic)	261	if (expect_true (have_monotonic))
108	{	262	{
109	struct timespec ts;	263	struct timespec ts;
110	clock_gettime (CLOCK_MONOTONIC, &ts);	264	clock_gettime (CLOCK_MONOTONIC, &ts);
111	return ts.tv_sec + ts.tv_nsec * 1e-9;	265	return ts.tv_sec + ts.tv_nsec * 1e-9;
112	}	266	}
113	#endif	267	#endif
114		268
115	return ev_time ();	269	return ev_time ();
116	}	270	}
117		271
		272	ev_tstamp
		273	ev_now (EV_P)
		274	{
		275	return rt_now;
		276	}
		277
118	#define array_roundsize(base,n) ((n) \| 4 & ~3)	278	#define array_roundsize(type,n) ((n) \| 4 & ~3)
119		279
120	#define array_needsize(base,cur,cnt,init) \	280	#define array_needsize(type,base,cur,cnt,init) \
121	if ((cnt) > cur) \	281	if (expect_false ((cnt) > cur)) \
122	{ \	282	{ \
123	int newcnt = cur; \	283	int newcnt = cur; \
124	do \	284	do \
125	{ \	285	{ \
126	newcnt = array_roundsize (base, newcnt << 1); \	286	newcnt = array_roundsize (type, newcnt << 1); \
127	} \	287	} \
128	while ((cnt) > newcnt); \	288	while ((cnt) > newcnt); \
129	\	289	\
130	base = realloc (base, sizeof (base) (newcnt)); \	290	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
131	init (base + cur, newcnt - cur); \	291	init (base + cur, newcnt - cur); \
132	cur = newcnt; \	292	cur = newcnt; \
133	}	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;
134		310
135	/*****************************************************************************/	311	/*****************************************************************************/
136
137	typedef struct
138	{
139	struct ev_io *head;
140	int events;
141	} ANFD;
142
143	static ANFD *anfds;
144	static int anfdmax;
145		312
146	static void	313	static void
147	anfds_init (ANFD *base, int count)	314	anfds_init (ANFD *base, int count)
148	{	315	{
149	while (count--)	316	while (count--)
150	{	317	{
151	base->head = 0;	318	base->head = 0;
152	base->events = EV_NONE;	319	base->events = EV_NONE;
		320	base->reify = 0;
		321
153	++base;	322	++base;
154	}	323	}
155	}	324	}
156		325
157	typedef struct	326	void
		327	ev_feed_event (EV_P_ void *w, int revents)
158	{	328	{
159	W w;	329	W w_ = (W)w;
160	int events;
161	} ANPENDING;
162		330
163	static ANPENDING *pendings;	331	if (w_->pending)
164	static int pendingmax, pendingcnt;	332	{
		333	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
		334	return;
		335	}
165		336
166	static void
167	event (W w, int events)
168	{
169	w->pending = ++pendingcnt;	337	w_->pending = ++pendingcnt [ABSPRI (w_)];
170	array_needsize (pendings, pendingmax, pendingcnt, );	338	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
171	pendings [pendingcnt - 1].w = w;	339	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
172	pendings [pendingcnt - 1].events = events;	340	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
173	}	341	}
174		342
175	static void	343	static void
176	queue_events (W *events, int eventcnt, int type)	344	queue_events (EV_P_ W *events, int eventcnt, int type)
177	{	345	{
178	int i;	346	int i;
179		347
180	for (i = 0; i < eventcnt; ++i)	348	for (i = 0; i < eventcnt; ++i)
181	event (events [i], type);	349	ev_feed_event (EV_A_ events [i], type);
182	}	350	}
183		351
184	static void	352	inline void
185	fd_event (int fd, int events)	353	fd_event (EV_P_ int fd, int revents)
186	{	354	{
187	ANFD *anfd = anfds + fd;	355	ANFD *anfd = anfds + fd;
188	struct ev_io *w;	356	struct ev_io *w;
189		357
190	for (w = anfd->head; w; w = w->next)	358	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
191	{	359	{
192	int ev = w->events & events;	360	int ev = w->events & revents;
193		361
194	if (ev)	362	if (ev)
195	event ((W)w, ev);	363	ev_feed_event (EV_A_ (W)w, ev);
196	}	364	}
		365	}
		366
		367	void
		368	ev_feed_fd_event (EV_P_ int fd, int revents)
		369	{
		370	fd_event (EV_A_ fd, revents);
197	}	371	}
198		372
199	/*****************************************************************************/	373	/*****************************************************************************/
200		374
201	static int *fdchanges;
202	static int fdchangemax, fdchangecnt;
203
204	static void	375	static void
205	fd_reify (void)	376	fd_reify (EV_P)
206	{	377	{
207	int i;	378	int i;
208		379
209	for (i = 0; i < fdchangecnt; ++i)	380	for (i = 0; i < fdchangecnt; ++i)
210	{	381	{
…		…
212	ANFD *anfd = anfds + fd;	383	ANFD *anfd = anfds + fd;
213	struct ev_io *w;	384	struct ev_io *w;
214		385
215	int events = 0;	386	int events = 0;
216		387
217	for (w = anfd->head; w; w = w->next)	388	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
218	events \|= w->events;	389	events \|= w->events;
219		390
220	anfd->events &= ~EV_REIFY;	391	anfd->reify = 0;
221		392
222	if (anfd->events != events)
223	{
224	method_modify (fd, anfd->events, events);	393	method_modify (EV_A_ fd, anfd->events, events);
225	anfd->events = events;	394	anfd->events = events;
226	}
227	}	395	}
228		396
229	fdchangecnt = 0;	397	fdchangecnt = 0;
230	}	398	}
231		399
232	static void	400	static void
233	fd_change (int fd)	401	fd_change (EV_P_ int fd)
234	{	402	{
235	if (anfds [fd].events & EV_REIFY \|\| fdchangecnt < 0)	403	if (anfds [fd].reify)
236	return;	404	return;
237		405
238	anfds [fd].events \|= EV_REIFY;	406	anfds [fd].reify = 1;
239		407
240	++fdchangecnt;	408	++fdchangecnt;
241	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	409	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
242	fdchanges [fdchangecnt - 1] = fd;	410	fdchanges [fdchangecnt - 1] = fd;
243	}	411	}
244		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
245	/* called on EBADF to verify fds */	435	/* called on EBADF to verify fds */
246	static void	436	static void
247	fd_recheck (void)	437	fd_ebadf (EV_P)
248	{	438	{
249	int fd;	439	int fd;
250		440
251	for (fd = 0; fd < anfdmax; ++fd)	441	for (fd = 0; fd < anfdmax; ++fd)
252	if (anfds [fd].events)	442	if (anfds [fd].events)
253	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	443	if (!fd_valid (fd) == -1 && errno == EBADF)
254	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)
255	{	455	{
256	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT);	456	fd_kill (EV_A_ fd);
257	ev_io_stop (anfds [fd].head);	457	return;
258	}	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	}
259	}	474	}
260		475
261	/*****************************************************************************/	476	/*****************************************************************************/
262		477
263	static struct ev_timer **timers;
264	static int timermax, timercnt;
265
266	static struct ev_periodic **periodics;
267	static int periodicmax, periodiccnt;
268
269	static void	478	static void
270	upheap (WT *timers, int k)	479	upheap (WT *heap, int k)
271	{	480	{
272	WT w = timers [k];	481	WT w = heap [k];
273		482
274	while (k && timers [k >> 1]->at > w->at)	483	while (k && heap [k >> 1]->at > w->at)
275	{	484	{
276	timers [k] = timers [k >> 1];	485	heap [k] = heap [k >> 1];
277	timers [k]->active = k + 1;	486	((W)heap [k])->active = k + 1;
278	k >>= 1;	487	k >>= 1;
279	}	488	}
280		489
281	timers [k] = w;	490	heap [k] = w;
282	timers [k]->active = k + 1;	491	((W)heap [k])->active = k + 1;
283		492
284	}	493	}
285		494
286	static void	495	static void
287	downheap (WT *timers, int N, int k)	496	downheap (WT *heap, int N, int k)
288	{	497	{
289	WT w = timers [k];	498	WT w = heap [k];
290		499
291	while (k < (N >> 1))	500	while (k < (N >> 1))
292	{	501	{
293	int j = k << 1;	502	int j = k << 1;
294		503
295	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	504	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
296	++j;	505	++j;
297		506
298	if (w->at <= timers [j]->at)	507	if (w->at <= heap [j]->at)
299	break;	508	break;
300		509
301	timers [k] = timers [j];	510	heap [k] = heap [j];
302	timers [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
303	k = j;	512	k = j;
304	}	513	}
305		514
306	timers [k] = w;	515	heap [k] = w;
307	timers [k]->active = k + 1;	516	((W)heap [k])->active = k + 1;
308	}	517	}
309		518
310	/*****************************************************************************/	519	/*****************************************************************************/
311		520
312	typedef struct	521	typedef struct
313	{	522	{
314	struct ev_signal *head;	523	WL head;
315	sig_atomic_t gotsig;	524	sig_atomic_t volatile gotsig;
316	} ANSIG;	525	} ANSIG;
317		526
318	static ANSIG *signals;	527	static ANSIG *signals;
319	static int signalmax;	528	static int signalmax;
320		529
321	static int sigpipe [2];	530	static int sigpipe [2];
322	static sig_atomic_t gotsig;	531	static sig_atomic_t volatile gotsig;
323	static struct ev_io sigev;	532	static struct ev_io sigev;
324		533
325	static void	534	static void
326	signals_init (ANSIG *base, int count)	535	signals_init (ANSIG *base, int count)
327	{	536	{
328	while (count--)	537	while (count--)
329	{	538	{
330	base->head = 0;	539	base->head = 0;
331	base->gotsig = 0;	540	base->gotsig = 0;
		541
332	++base;	542	++base;
333	}	543	}
334	}	544	}
335		545
336	static void	546	static void
337	sighandler (int signum)	547	sighandler (int signum)
338	{	548	{
		549	#if WIN32
		550	signal (signum, sighandler);
		551	#endif
		552
339	signals [signum - 1].gotsig = 1;	553	signals [signum - 1].gotsig = 1;
340		554
341	if (!gotsig)	555	if (!gotsig)
342	{	556	{
		557	int old_errno = errno;
343	gotsig = 1;	558	gotsig = 1;
		559	#ifdef WIN32
		560	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		561	#else
344	write (sigpipe [1], &gotsig, 1);	562	write (sigpipe [1], &signum, 1);
		563	#endif
		564	errno = old_errno;
345	}	565	}
346	}	566	}
347		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
348	static void	588	static void
349	sigcb (struct ev_io *iow, int revents)	589	sigcb (EV_P_ struct ev_io *iow, int revents)
350	{	590	{
351	struct ev_signal *w;
352	int sig;	591	int signum;
353		592
		593	#ifdef WIN32
		594	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		595	#else
		596	read (sigpipe [0], &revents, 1);
		597	#endif
354	gotsig = 0;	598	gotsig = 0;
355	read (sigpipe [0], &revents, 1);
356		599
357	for (sig = signalmax; sig--; )	600	for (signum = signalmax; signum--; )
358	if (signals [sig].gotsig)	601	if (signals [signum].gotsig)
359	{	602	ev_feed_signal_event (EV_A_ signum + 1);
360	signals [sig].gotsig = 0;
361
362	for (w = signals [sig].head; w; w = w->next)
363	event ((W)w, EV_SIGNAL);
364	}
365	}	603	}
366		604
367	static void	605	static void
368	siginit (void)	606	siginit (EV_P)
369	{	607	{
		608	#ifndef WIN32
370	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	609	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
371	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	610	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
372		611
373	/* rather than sort out wether we really need nb, set it */	612	/* rather than sort out wether we really need nb, set it */
374	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	613	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
375	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	614	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		615	#endif
376		616
377	ev_io_set (&sigev, sigpipe [0], EV_READ);	617	ev_io_set (&sigev, sigpipe [0], EV_READ);
378	ev_io_start (&sigev);	618	ev_io_start (EV_A_ &sigev);
		619	ev_unref (EV_A); /* child watcher should not keep loop alive */
379	}	620	}
380		621
381	/*****************************************************************************/	622	/*****************************************************************************/
382		623
383	static struct ev_idle **idles;
384	static int idlemax, idlecnt;
385
386	static struct ev_prepare **prepares;
387	static int preparemax, preparecnt;
388
389	static struct ev_check **checks;
390	static int checkmax, checkcnt;
391
392	/*****************************************************************************/
393
394	static struct ev_child *childs [PID_HASHSIZE];	624	static struct ev_child *childs [PID_HASHSIZE];
		625
		626	#ifndef WIN32
		627
395	static struct ev_signal childev;	628	static struct ev_signal childev;
396		629
397	#ifndef WCONTINUED	630	#ifndef WCONTINUED
398	# define WCONTINUED 0	631	# define WCONTINUED 0
399	#endif	632	#endif
400		633
401	static void	634	static void
402	childcb (struct ev_signal *sw, int revents)	635	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
403	{	636	{
404	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	{
405	int pid, status;	652	int pid, status;
406		653
407	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	654	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
408	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	655	{
409	if (w->pid == pid \|\| w->pid == -1)	656	/* make sure we are called again until all childs have been reaped */
410	{	657	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
411	w->status = status;	658
412	event ((W)w, EV_CHILD);	659	child_reap (EV_A_ sw, pid, pid, status);
413	}	660	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		661	}
414	}	662	}
		663
		664	#endif
415		665
416	/*****************************************************************************/	666	/*****************************************************************************/
417		667
		668	#if EV_USE_KQUEUE
		669	# include "ev_kqueue.c"
		670	#endif
418	#if EV_USE_EPOLL	671	#if EV_USE_EPOLL
419	# include "ev_epoll.c"	672	# include "ev_epoll.c"
420	#endif	673	#endif
		674	#if EV_USE_POLL
		675	# include "ev_poll.c"
		676	#endif
421	#if EV_USE_SELECT	677	#if EV_USE_SELECT
422	# include "ev_select.c"	678	# include "ev_select.c"
423	#endif	679	#endif
424		680
425	int	681	int
…		…
432	ev_version_minor (void)	688	ev_version_minor (void)
433	{	689	{
434	return EV_VERSION_MINOR;	690	return EV_VERSION_MINOR;
435	}	691	}
436		692
437	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)
438	{	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	{
439	if (!ev_method)	714	if (!method)
440	{	715	{
441	#if EV_USE_MONOTONIC	716	#if EV_USE_MONOTONIC
442	{	717	{
443	struct timespec ts;	718	struct timespec ts;
444	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	719	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
445	have_monotonic = 1;	720	have_monotonic = 1;
446	}	721	}
447	#endif	722	#endif
448		723
449	ev_now = ev_time ();	724	rt_now = ev_time ();
450	now = get_clock ();	725	mn_now = get_clock ();
		726	now_floor = mn_now;
451	diff = ev_now - now;	727	rtmn_diff = rt_now - mn_now;
452		728
453	if (pipe (sigpipe))	729	if (methods == EVMETHOD_AUTO)
454	return 0;	730	if (!enable_secure () && getenv ("LIBEV_METHODS"))
455		731	methods = atoi (getenv ("LIBEV_METHODS"));
		732	else
456	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
457	#if EV_USE_EPOLL	742	#if EV_USE_EPOLL
458	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);
459	#endif	747	#endif
460	#if EV_USE_SELECT	748	#if EV_USE_SELECT
461	if (ev_method == EVMETHOD_NONE) select_init (flags);	749	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
462	#endif	750	#endif
463		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
464	if (ev_method)	872	if (ev_method (EV_A))
465	{	873	{
466	ev_watcher_init (&sigev, sigcb);
467	siginit ();	874	siginit (EV_A);
468		875
		876	#ifndef WIN32
469	ev_signal_init (&childev, childcb, SIGCHLD);	877	ev_signal_init (&childev, childcb, SIGCHLD);
		878	ev_set_priority (&childev, EV_MAXPRI);
470	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
471	}	882	}
		883	else
		884	default_loop = 0;
472	}	885	}
473		886
474	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;
475	}	920	}
476		921
477	/*****************************************************************************/	922	/*****************************************************************************/
478		923
479	void
480	ev_prefork (void)
481	{
482	/* nop */
483	}
484
485	void
486	ev_postfork_parent (void)
487	{
488	/* nop */
489	}
490
491	void
492	ev_postfork_child (void)
493	{
494	#if EV_USE_EPOLL
495	if (ev_method == EVMETHOD_EPOLL)
496	epoll_postfork_child ();
497	#endif
498
499	ev_io_stop (&sigev);
500	close (sigpipe [0]);
501	close (sigpipe [1]);
502	pipe (sigpipe);
503	siginit ();
504	}
505
506	/*****************************************************************************/
507
508	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
509	call_pending (void)	937	call_pending (EV_P)
510	{	938	{
		939	int pri;
		940
		941	for (pri = NUMPRI; pri--; )
511	while (pendingcnt)	942	while (pendingcnt [pri])
512	{	943	{
513	ANPENDING *p = pendings + --pendingcnt;	944	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
514		945
515	if (p->w)	946	if (p->w)
516	{	947	{
517	p->w->pending = 0;	948	p->w->pending = 0;
518	p->w->cb (p->w, p->events);	949	p->w->cb (EV_A_ p->w, p->events);
519	}	950	}
520	}	951	}
521	}	952	}
522		953
523	static void	954	static void
524	timers_reify (void)	955	timers_reify (EV_P)
525	{	956	{
526	while (timercnt && timers [0]->at <= now)	957	while (timercnt && ((WT)timers [0])->at <= mn_now)
527	{	958	{
528	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)));
529		962
530	/* first reschedule or stop timer */	963	/* first reschedule or stop timer */
531	if (w->repeat)	964	if (w->repeat)
532	{	965	{
		966	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
533	w->at = now + w->repeat;	967	((WT)w)->at = mn_now + w->repeat;
534	assert (("timer timeout in the past, negative repeat?", w->at > now));
535	downheap ((WT *)timers, timercnt, 0);	968	downheap ((WT *)timers, timercnt, 0);
536	}	969	}
537	else	970	else
538	ev_timer_stop (w); /* nonrepeating: stop timer */	971	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
539		972
540	event ((W)w, EV_TIMEOUT);	973	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
541	}	974	}
542	}	975	}
543		976
544	static void	977	static void
545	periodics_reify (void)	978	periodics_reify (EV_P)
546	{	979	{
547	while (periodiccnt && periodics [0]->at <= ev_now)	980	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
548	{	981	{
549	struct ev_periodic *w = periodics [0];	982	struct ev_periodic *w = periodics [0];
550		983
		984	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		985
551	/* first reschedule or stop timer */	986	/* first reschedule or stop timer */
552	if (w->interval)	987	if (w->reschedule_cb)
553	{	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	{
554	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;
555	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));
556	downheap ((WT *)periodics, periodiccnt, 0);	998	downheap ((WT *)periodics, periodiccnt, 0);
557	}	999	}
558	else	1000	else
559	ev_periodic_stop (w); /* nonrepeating: stop timer */	1001	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
560		1002
561	event ((W)w, EV_TIMEOUT);	1003	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
562	}	1004	}
563	}	1005	}
564		1006
565	static void	1007	static void
566	periodics_reschedule (ev_tstamp diff)	1008	periodics_reschedule (EV_P)
567	{	1009	{
568	int i;	1010	int i;
569		1011
570	/* adjust periodics after time jump */	1012	/* adjust periodics after time jump */
571	for (i = 0; i < periodiccnt; ++i)	1013	for (i = 0; i < periodiccnt; ++i)
572	{	1014	{
573	struct ev_periodic *w = periodics [i];	1015	struct ev_periodic *w = periodics [i];
574		1016
		1017	if (w->reschedule_cb)
		1018	((WT)w)->at = w->reschedule_cb (w, rt_now);
575	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))
576	{	1055	{
577	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1056	ev_tstamp odiff = rtmn_diff;
578		1057
579	if (fabs (diff) >= 1e-4)	1058	for (i = 4; --i; ) /* loop a few times, before making important decisions */
580	{	1059	{
581	ev_periodic_stop (w);	1060	rtmn_diff = rt_now - mn_now;
582	ev_periodic_start (w);
583		1061
584	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;
585	}	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) */
586	}	1073	}
587	}	1074	}
588	}	1075	else
589		1076	#endif
590	static void	1077	{
591	time_update (void)
592	{
593	int i;
594
595	ev_now = ev_time ();	1078	rt_now = ev_time ();
596		1079
597	if (have_monotonic)	1080	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
598	{
599	ev_tstamp odiff = diff;
600
601	for (i = 4; --i; ) /* loop a few times, before making important decisions */
602	{	1081	{
603	now = get_clock ();
604	diff = ev_now - now;
605
606	if (fabs (odiff - diff) < MIN_TIMEJUMP)
607	return; /* all is well */
608
609	ev_now = ev_time ();
610	}
611
612	periodics_reschedule (diff - odiff);
613	/* no timer adjustment, as the monotonic clock doesn't jump */
614	}
615	else
616	{
617	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)
618	{
619	periodics_reschedule (ev_now - now);	1082	periodics_reschedule (EV_A);
620		1083
621	/* 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 */
622	for (i = 0; i < timercnt; ++i)	1085	for (i = 0; i < timercnt; ++i)
623	timers [i]->at += diff;	1086	((WT)timers [i])->at += rt_now - mn_now;
624	}	1087	}
625		1088
626	now = ev_now;	1089	mn_now = rt_now;
627	}	1090	}
628	}	1091	}
629		1092
630	int ev_loop_done;	1093	void
		1094	ev_ref (EV_P)
		1095	{
		1096	++activecnt;
		1097	}
631		1098
		1099	void
		1100	ev_unref (EV_P)
		1101	{
		1102	--activecnt;
		1103	}
		1104
		1105	static int loop_done;
		1106
		1107	void
632	void ev_loop (int flags)	1108	ev_loop (EV_P_ int flags)
633	{	1109	{
634	double block;	1110	double block;
635	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1111	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
636		1112
637	do	1113	do
638	{	1114	{
639	/* queue check watchers (and execute them) */	1115	/* queue check watchers (and execute them) */
640	if (preparecnt)	1116	if (expect_false (preparecnt))
641	{	1117	{
642	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1118	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
643	call_pending ();	1119	call_pending (EV_A);
644	}	1120	}
645		1121
		1122	/* we might have forked, so reify kernel state if necessary */
		1123	if (expect_false (postfork))
		1124	loop_fork (EV_A);
		1125
646	/* update fd-related kernel structures */	1126	/* update fd-related kernel structures */
647	fd_reify ();	1127	fd_reify (EV_A);
648		1128
649	/* calculate blocking time */	1129	/* calculate blocking time */
650		1130
651	/* 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
652	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	{
653	ev_now = ev_time ();	1139	rt_now = ev_time ();
		1140	mn_now = rt_now;
		1141	}
654		1142
655	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1143	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
656	block = 0.;	1144	block = 0.;
657	else	1145	else
658	{	1146	{
659	block = MAX_BLOCKTIME;	1147	block = MAX_BLOCKTIME;
660		1148
661	if (timercnt)	1149	if (timercnt)
662	{	1150	{
663	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;
664	if (block > to) block = to;	1152	if (block > to) block = to;
665	}	1153	}
666		1154
667	if (periodiccnt)	1155	if (periodiccnt)
668	{	1156	{
669	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1157	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
670	if (block > to) block = to;	1158	if (block > to) block = to;
671	}	1159	}
672		1160
673	if (block < 0.) block = 0.;	1161	if (block < 0.) block = 0.;
674	}	1162	}
675		1163
676	method_poll (block);	1164	method_poll (EV_A_ block);
677		1165
678	/* update ev_now, do magic */	1166	/* update rt_now, do magic */
679	time_update ();	1167	time_update (EV_A);
680		1168
681	/* queue pending timers and reschedule them */	1169	/* queue pending timers and reschedule them */
682	timers_reify (); /* relative timers called last */	1170	timers_reify (EV_A); /* relative timers called last */
683	periodics_reify (); /* absolute timers called first */	1171	periodics_reify (EV_A); /* absolute timers called first */
684		1172
685	/* queue idle watchers unless io or timers are pending */	1173	/* queue idle watchers unless io or timers are pending */
686	if (!pendingcnt)	1174	if (idlecnt && !any_pending (EV_A))
687	queue_events ((W *)idles, idlecnt, EV_IDLE);	1175	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
688		1176
689	/* queue check watchers, to be executed first */	1177	/* queue check watchers, to be executed first */
690	if (checkcnt)	1178	if (checkcnt)
691	queue_events ((W *)checks, checkcnt, EV_CHECK);	1179	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
692		1180
693	call_pending ();	1181	call_pending (EV_A);
694	}	1182	}
695	while (!ev_loop_done);	1183	while (activecnt && !loop_done);
696		1184
697	if (ev_loop_done != 2)	1185	if (loop_done != 2)
698	ev_loop_done = 0;	1186	loop_done = 0;
		1187	}
		1188
		1189	void
		1190	ev_unloop (EV_P_ int how)
		1191	{
		1192	loop_done = how;
699	}	1193	}
700		1194
701	/*****************************************************************************/	1195	/*****************************************************************************/
702		1196
703	static void	1197	inline void
704	wlist_add (WL *head, WL elem)	1198	wlist_add (WL *head, WL elem)
705	{	1199	{
706	elem->next = *head;	1200	elem->next = *head;
707	*head = elem;	1201	*head = elem;
708	}	1202	}
709		1203
710	static void	1204	inline void
711	wlist_del (WL *head, WL elem)	1205	wlist_del (WL *head, WL elem)
712	{	1206	{
713	while (*head)	1207	while (*head)
714	{	1208	{
715	if (*head == elem)	1209	if (*head == elem)
…		…
720		1214
721	head = &(*head)->next;	1215	head = &(*head)->next;
722	}	1216	}
723	}	1217	}
724		1218
725	static void	1219	inline void
726	ev_clear (W w)	1220	ev_clear_pending (EV_P_ W w)
727	{	1221	{
728	if (w->pending)	1222	if (w->pending)
729	{	1223	{
730	pendings [w->pending - 1].w = 0;	1224	pendings [ABSPRI (w)][w->pending - 1].w = 0;
731	w->pending = 0;	1225	w->pending = 0;
732	}	1226	}
733	}	1227	}
734		1228
735	static void	1229	inline void
736	ev_start (W w, int active)	1230	ev_start (EV_P_ W w, int active)
737	{	1231	{
		1232	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1233	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1234
738	w->active = active;	1235	w->active = active;
		1236	ev_ref (EV_A);
739	}	1237	}
740		1238
741	static void	1239	inline void
742	ev_stop (W w)	1240	ev_stop (EV_P_ W w)
743	{	1241	{
		1242	ev_unref (EV_A);
744	w->active = 0;	1243	w->active = 0;
745	}	1244	}
746		1245
747	/*****************************************************************************/	1246	/*****************************************************************************/
748		1247
749	void	1248	void
750	ev_io_start (struct ev_io *w)	1249	ev_io_start (EV_P_ struct ev_io *w)
751	{	1250	{
		1251	int fd = w->fd;
		1252
752	if (ev_is_active (w))	1253	if (ev_is_active (w))
753	return;	1254	return;
754		1255
755	int fd = w->fd;	1256	assert (("ev_io_start called with negative fd", fd >= 0));
756		1257
757	ev_start ((W)w, 1);	1258	ev_start (EV_A_ (W)w, 1);
758	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1259	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
759	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1260	wlist_add ((WL *)&anfds[fd].head, (WL)w);
760		1261
761	fd_change (fd);	1262	fd_change (EV_A_ fd);
762	}	1263	}
763		1264
764	void	1265	void
765	ev_io_stop (struct ev_io *w)	1266	ev_io_stop (EV_P_ struct ev_io *w)
766	{	1267	{
767	ev_clear ((W)w);	1268	ev_clear_pending (EV_A_ (W)w);
768	if (!ev_is_active (w))	1269	if (!ev_is_active (w))
769	return;	1270	return;
770		1271
771	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1272	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
772	ev_stop ((W)w);	1273	ev_stop (EV_A_ (W)w);
773		1274
774	fd_change (w->fd);	1275	fd_change (EV_A_ w->fd);
775	}	1276	}
776		1277
777	void	1278	void
778	ev_timer_start (struct ev_timer *w)	1279	ev_timer_start (EV_P_ struct ev_timer *w)
779	{	1280	{
780	if (ev_is_active (w))	1281	if (ev_is_active (w))
781	return;	1282	return;
782		1283
783	w->at += now;	1284	((WT)w)->at += mn_now;
784		1285
785	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.));
786		1287
787	ev_start ((W)w, ++timercnt);	1288	ev_start (EV_A_ (W)w, ++timercnt);
788	array_needsize (timers, timermax, timercnt, );	1289	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
789	timers [timercnt - 1] = w;	1290	timers [timercnt - 1] = w;
790	upheap ((WT *)timers, timercnt - 1);	1291	upheap ((WT *)timers, timercnt - 1);
791	}
792		1292
		1293	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1294	}
		1295
793	void	1296	void
794	ev_timer_stop (struct ev_timer *w)	1297	ev_timer_stop (EV_P_ struct ev_timer *w)
795	{	1298	{
796	ev_clear ((W)w);	1299	ev_clear_pending (EV_A_ (W)w);
797	if (!ev_is_active (w))	1300	if (!ev_is_active (w))
798	return;	1301	return;
799		1302
		1303	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1304
800	if (w->active < timercnt--)	1305	if (((W)w)->active < timercnt--)
801	{	1306	{
802	timers [w->active - 1] = timers [timercnt];	1307	timers [((W)w)->active - 1] = timers [timercnt];
803	downheap ((WT *)timers, timercnt, w->active - 1);	1308	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
804	}	1309	}
805		1310
806	w->at = w->repeat;	1311	((WT)w)->at = w->repeat;
807		1312
808	ev_stop ((W)w);	1313	ev_stop (EV_A_ (W)w);
809	}	1314	}
810		1315
811	void	1316	void
812	ev_timer_again (struct ev_timer *w)	1317	ev_timer_again (EV_P_ struct ev_timer *w)
813	{	1318	{
814	if (ev_is_active (w))	1319	if (ev_is_active (w))
815	{	1320	{
816	if (w->repeat)	1321	if (w->repeat)
817	{	1322	{
818	w->at = now + w->repeat;	1323	((WT)w)->at = mn_now + w->repeat;
819	downheap ((WT *)timers, timercnt, w->active - 1);	1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
820	}	1325	}
821	else	1326	else
822	ev_timer_stop (w);	1327	ev_timer_stop (EV_A_ w);
823	}	1328	}
824	else if (w->repeat)	1329	else if (w->repeat)
825	ev_timer_start (w);	1330	ev_timer_start (EV_A_ w);
826	}	1331	}
827		1332
828	void	1333	void
829	ev_periodic_start (struct ev_periodic *w)	1334	ev_periodic_start (EV_P_ struct ev_periodic *w)
830	{	1335	{
831	if (ev_is_active (w))	1336	if (ev_is_active (w))
832	return;	1337	return;
833		1338
834	assert (("periodic interval value less than zero not allowed", w->interval >= 0.));	1339	if (w->reschedule_cb)
835		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.));
836	/* 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 */
837	if (w->interval)
838	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	}
839		1347
840	ev_start ((W)w, ++periodiccnt);	1348	ev_start (EV_A_ (W)w, ++periodiccnt);
841	array_needsize (periodics, periodicmax, periodiccnt, );	1349	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
842	periodics [periodiccnt - 1] = w;	1350	periodics [periodiccnt - 1] = w;
843	upheap ((WT *)periodics, periodiccnt - 1);	1351	upheap ((WT *)periodics, periodiccnt - 1);
844	}
845		1352
		1353	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1354	}
		1355
846	void	1356	void
847	ev_periodic_stop (struct ev_periodic *w)	1357	ev_periodic_stop (EV_P_ struct ev_periodic *w)
848	{	1358	{
849	ev_clear ((W)w);	1359	ev_clear_pending (EV_A_ (W)w);
850	if (!ev_is_active (w))	1360	if (!ev_is_active (w))
851	return;	1361	return;
852		1362
		1363	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1364
853	if (w->active < periodiccnt--)	1365	if (((W)w)->active < periodiccnt--)
854	{	1366	{
855	periodics [w->active - 1] = periodics [periodiccnt];	1367	periodics [((W)w)->active - 1] = periodics [periodiccnt];
856	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1368	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
857	}	1369	}
858		1370
859	ev_stop ((W)w);	1371	ev_stop (EV_A_ (W)w);
860	}	1372	}
861		1373
862	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
863	ev_signal_start (struct ev_signal *w)	1382	ev_idle_start (EV_P_ struct ev_idle *w)
864	{	1383	{
865	if (ev_is_active (w))	1384	if (ev_is_active (w))
866	return;	1385	return;
867		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
868	ev_start ((W)w, 1);	1462	ev_start (EV_A_ (W)w, 1);
869	array_needsize (signals, signalmax, w->signum, signals_init);	1463	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
870	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1464	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
871		1465
872	if (!w->next)	1466	if (!((WL)w)->next)
873	{	1467	{
		1468	#if WIN32
		1469	signal (w->signum, sighandler);
		1470	#else
874	struct sigaction sa;	1471	struct sigaction sa;
875	sa.sa_handler = sighandler;	1472	sa.sa_handler = sighandler;
876	sigfillset (&sa.sa_mask);	1473	sigfillset (&sa.sa_mask);
877	sa.sa_flags = 0;	1474	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
878	sigaction (w->signum, &sa, 0);	1475	sigaction (w->signum, &sa, 0);
		1476	#endif
879	}	1477	}
880	}	1478	}
881		1479
882	void	1480	void
883	ev_signal_stop (struct ev_signal *w)	1481	ev_signal_stop (EV_P_ struct ev_signal *w)
884	{	1482	{
885	ev_clear ((W)w);	1483	ev_clear_pending (EV_A_ (W)w);
886	if (!ev_is_active (w))	1484	if (!ev_is_active (w))
887	return;	1485	return;
888		1486
889	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1487	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
890	ev_stop ((W)w);	1488	ev_stop (EV_A_ (W)w);
891		1489
892	if (!signals [w->signum - 1].head)	1490	if (!signals [w->signum - 1].head)
893	signal (w->signum, SIG_DFL);	1491	signal (w->signum, SIG_DFL);
894	}	1492	}
895		1493
896	void	1494	void
897	ev_idle_start (struct ev_idle *w)	1495	ev_child_start (EV_P_ struct ev_child *w)
898	{	1496	{
		1497	#if EV_MULTIPLICITY
		1498	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1499	#endif
899	if (ev_is_active (w))	1500	if (ev_is_active (w))
900	return;	1501	return;
901		1502
902	ev_start ((W)w, ++idlecnt);	1503	ev_start (EV_A_ (W)w, 1);
903	array_needsize (idles, idlemax, idlecnt, );	1504	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
904	idles [idlecnt - 1] = w;
905	}	1505	}
906		1506
907	void	1507	void
908	ev_idle_stop (struct ev_idle *w)	1508	ev_child_stop (EV_P_ struct ev_child *w)
909	{	1509	{
910	ev_clear ((W)w);	1510	ev_clear_pending (EV_A_ (W)w);
911	if (ev_is_active (w))	1511	if (ev_is_active (w))
912	return;	1512	return;
913		1513
914	idles [w->active - 1] = idles [--idlecnt];
915	ev_stop ((W)w);
916	}
917
918	void
919	ev_prepare_start (struct ev_prepare *w)
920	{
921	if (ev_is_active (w))
922	return;
923
924	ev_start ((W)w, ++preparecnt);
925	array_needsize (prepares, preparemax, preparecnt, );
926	prepares [preparecnt - 1] = w;
927	}
928
929	void
930	ev_prepare_stop (struct ev_prepare *w)
931	{
932	ev_clear ((W)w);
933	if (ev_is_active (w))
934	return;
935
936	prepares [w->active - 1] = prepares [--preparecnt];
937	ev_stop ((W)w);
938	}
939
940	void
941	ev_check_start (struct ev_check *w)
942	{
943	if (ev_is_active (w))
944	return;
945
946	ev_start ((W)w, ++checkcnt);
947	array_needsize (checks, checkmax, checkcnt, );
948	checks [checkcnt - 1] = w;
949	}
950
951	void
952	ev_check_stop (struct ev_check *w)
953	{
954	ev_clear ((W)w);
955	if (ev_is_active (w))
956	return;
957
958	checks [w->active - 1] = checks [--checkcnt];
959	ev_stop ((W)w);
960	}
961
962	void
963	ev_child_start (struct ev_child *w)
964	{
965	if (ev_is_active (w))
966	return;
967
968	ev_start ((W)w, 1);
969	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
970	}
971
972	void
973	ev_child_stop (struct ev_child *w)
974	{
975	ev_clear ((W)w);
976	if (ev_is_active (w))
977	return;
978
979	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1514	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
980	ev_stop ((W)w);	1515	ev_stop (EV_A_ (W)w);
981	}	1516	}
982		1517
983	/*****************************************************************************/	1518	/*****************************************************************************/
984		1519
985	struct ev_once	1520	struct ev_once
…		…
989	void (cb)(int revents, void arg);	1524	void (cb)(int revents, void arg);
990	void *arg;	1525	void *arg;
991	};	1526	};
992		1527
993	static void	1528	static void
994	once_cb (struct ev_once *once, int revents)	1529	once_cb (EV_P_ struct ev_once *once, int revents)
995	{	1530	{
996	void (cb)(int revents, void arg) = once->cb;	1531	void (cb)(int revents, void arg) = once->cb;
997	void *arg = once->arg;	1532	void *arg = once->arg;
998		1533
999	ev_io_stop (&once->io);	1534	ev_io_stop (EV_A_ &once->io);
1000	ev_timer_stop (&once->to);	1535	ev_timer_stop (EV_A_ &once->to);
1001	free (once);	1536	ev_free (once);
1002		1537
1003	cb (revents, arg);	1538	cb (revents, arg);
1004	}	1539	}
1005		1540
1006	static void	1541	static void
1007	once_cb_io (struct ev_io *w, int revents)	1542	once_cb_io (EV_P_ struct ev_io *w, int revents)
1008	{	1543	{
1009	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);
1010	}	1545	}
1011		1546
1012	static void	1547	static void
1013	once_cb_to (struct ev_timer *w, int revents)	1548	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1014	{	1549	{
1015	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);
1016	}	1551	}
1017		1552
1018	void	1553	void
1019	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)
1020	{	1555	{
1021	struct ev_once *once = malloc (sizeof (struct ev_once));	1556	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1022		1557
1023	if (!once)	1558	if (!once)
1024	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1559	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1025	else	1560	else
1026	{	1561	{
…		…
1029		1564
1030	ev_watcher_init (&once->io, once_cb_io);	1565	ev_watcher_init (&once->io, once_cb_io);
1031	if (fd >= 0)	1566	if (fd >= 0)
1032	{	1567	{
1033	ev_io_set (&once->io, fd, events);	1568	ev_io_set (&once->io, fd, events);
1034	ev_io_start (&once->io);	1569	ev_io_start (EV_A_ &once->io);
1035	}	1570	}
1036		1571
1037	ev_watcher_init (&once->to, once_cb_to);	1572	ev_watcher_init (&once->to, once_cb_to);
1038	if (timeout >= 0.)	1573	if (timeout >= 0.)
1039	{	1574	{
1040	ev_timer_set (&once->to, timeout, 0.);	1575	ev_timer_set (&once->to, timeout, 0.);
1041	ev_timer_start (&once->to);	1576	ev_timer_start (EV_A_ &once->to);
1042	}	1577	}
1043	}	1578	}
1044	}	1579	}
1045		1580
1046	/*****************************************************************************/
1047
1048	#if 0
1049
1050	struct ev_io wio;
1051
1052	static void
1053	sin_cb (struct ev_io *w, int revents)
1054	{
1055	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1056	}
1057
1058	static void
1059	ocb (struct ev_timer *w, int revents)
1060	{
1061	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1062	ev_timer_stop (w);
1063	ev_timer_start (w);
1064	}
1065
1066	static void
1067	scb (struct ev_signal *w, int revents)
1068	{
1069	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1070	ev_io_stop (&wio);
1071	ev_io_start (&wio);
1072	}
1073
1074	static void
1075	gcb (struct ev_signal *w, int revents)
1076	{
1077	fprintf (stderr, "generic %x\n", revents);
1078
1079	}
1080
1081	int main (void)
1082	{
1083	ev_init (0);
1084
1085	ev_io_init (&wio, sin_cb, 0, EV_READ);
1086	ev_io_start (&wio);
1087
1088	struct ev_timer t[10000];
1089
1090	#if 0
1091	int i;
1092	for (i = 0; i < 10000; ++i)
1093	{
1094	struct ev_timer *w = t + i;
1095	ev_watcher_init (w, ocb, i);
1096	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1097	ev_timer_start (w);
1098	if (drand48 () < 0.5)
1099	ev_timer_stop (w);
1100	}
1101	#endif
1102
1103	struct ev_timer t1;
1104	ev_timer_init (&t1, ocb, 5, 10);
1105	ev_timer_start (&t1);
1106
1107	struct ev_signal sig;
1108	ev_signal_init (&sig, scb, SIGQUIT);
1109	ev_signal_start (&sig);
1110
1111	struct ev_check cw;
1112	ev_check_init (&cw, gcb);
1113	ev_check_start (&cw);
1114
1115	struct ev_idle iw;
1116	ev_idle_init (&iw, gcb);
1117	ev_idle_start (&iw);
1118
1119	ev_loop (0);
1120
1121	return 0;
1122	}
1123
1124	#endif
1125
1126
1127
1128

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Comparing libev/ev.c (file contents): Revision 1.30 by root, Thu Nov 1 08:28:33 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 1.30 by root, Thu Nov 1 08:28:33 2007 UTC vs.
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC