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Comparing libev/ev.c (file contents):
Revision 1.43 by root, Fri Nov 2 20:21:33 2007 UTC vs.
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (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
29	* 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.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
32	# 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
33	#endif	55	#endif
34		56
35	#include <math.h>	57	#include <math.h>
36	#include <stdlib.h>	58	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	59	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	60	#include <stddef.h>
41		61
42	#include <stdio.h>	62	#include <stdio.h>
43		63
44	#include <assert.h>	64	#include <assert.h>
45	#include <errno.h>	65	#include <errno.h>
46	#include <sys/types.h>	66	#include <sys/types.h>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	67	#include <time.h>
50		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
51	/**/	76	/**/
52		77
53	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
55	#endif	80	#endif
…		…
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	88	#endif
64		89
65	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
		92	#endif
		93
		94	#ifndef EV_USE_KQUEUE
		95	# define EV_USE_KQUEUE 0
		96	#endif
		97
		98	#ifndef EV_USE_WIN32
		99	# ifdef WIN32
		100	# define EV_USE_WIN32 0 /* it does not exist, use select */
		101	# undef EV_USE_SELECT
		102	# define EV_USE_SELECT 1
		103	# else
		104	# define EV_USE_WIN32 0
		105	# endif
67	#endif	106	#endif
68		107
69	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
71	#endif	110	#endif
…		…
107		146
108	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
109	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
110	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
111		150
112	static ev_tstamp now_floor, now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
113	ev_tstamp ev_now;
114	int ev_method;
115		152
116	static int have_monotonic; /* runtime */	153	#include "ev_win32.c"
117
118	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
119	static void (*method_modify)(int fd, int oev, int nev);
120	static void (*method_poll)(ev_tstamp timeout);
121		154
122	/*****************************************************************************/	155	/*****************************************************************************/
123		156
124	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
125	ev_time (void)	244	ev_time (void)
126	{	245	{
127	#if EV_USE_REALTIME	246	#if EV_USE_REALTIME
128	struct timespec ts;	247	struct timespec ts;
129	clock_gettime (CLOCK_REALTIME, &ts);	248	clock_gettime (CLOCK_REALTIME, &ts);
…		…
133	gettimeofday (&tv, 0);	252	gettimeofday (&tv, 0);
134	return tv.tv_sec + tv.tv_usec * 1e-6;	253	return tv.tv_sec + tv.tv_usec * 1e-6;
135	#endif	254	#endif
136	}	255	}
137		256
138	static ev_tstamp	257	inline ev_tstamp
139	get_clock (void)	258	get_clock (void)
140	{	259	{
141	#if EV_USE_MONOTONIC	260	#if EV_USE_MONOTONIC
142	if (expect_true (have_monotonic))	261	if (expect_true (have_monotonic))
143	{	262	{
…		…
148	#endif	267	#endif
149		268
150	return ev_time ();	269	return ev_time ();
151	}	270	}
152		271
		272	ev_tstamp
		273	ev_now (EV_P)
		274	{
		275	return rt_now;
		276	}
		277
153	#define array_roundsize(base,n) ((n) | 4 & ~3)	278	#define array_roundsize(type,n) ((n) | 4 & ~3)
154		279
155	#define array_needsize(base,cur,cnt,init) \	280	#define array_needsize(type,base,cur,cnt,init) \
156	if (expect_false ((cnt) > cur)) \	281	if (expect_false ((cnt) > cur)) \
157	{ \	282	{ \
158	int newcnt = cur; \	283	int newcnt = cur; \
159	do \	284	do \
160	{ \	285	{ \
161	newcnt = array_roundsize (base, newcnt << 1); \	286	newcnt = array_roundsize (type, newcnt << 1); \
162	} \	287	} \
163	while ((cnt) > newcnt); \	288	while ((cnt) > newcnt); \
164	\	289	\
165	base = realloc (base, sizeof (*base) * (newcnt)); \	290	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
166	init (base + cur, newcnt - cur); \	291	init (base + cur, newcnt - cur); \
167	cur = newcnt; \	292	cur = newcnt; \
168	}	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;
169		310
170	/*****************************************************************************/	311	/*****************************************************************************/
171
172	typedef struct
173	{
174	struct ev_io *head;
175	unsigned char events;
176	unsigned char reify;
177	} ANFD;
178
179	static ANFD *anfds;
180	static int anfdmax;
181		312
182	static void	313	static void
183	anfds_init (ANFD *base, int count)	314	anfds_init (ANFD *base, int count)
184	{	315	{
185	while (count--)	316	while (count--)
…		…
190		321
191	++base;	322	++base;
192	}	323	}
193	}	324	}
194		325
195	typedef struct	326	void
		327	ev_feed_event (EV_P_ void *w, int revents)
196	{	328	{
197	W w;	329	W w_ = (W)w;
198	int events;
199	} ANPENDING;
200		330
201	static ANPENDING *pendings [NUMPRI];
202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
203
204	static void
205	event (W w, int events)
206	{
207	if (w->pending)	331	if (w_->pending)
208	{	332	{
209	pendings [ABSPRI (w)][w->pending - 1].events |= events;	333	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
210	return;	334	return;
211	}	335	}
212		336
213	w->pending = ++pendingcnt [ABSPRI (w)];	337	w_->pending = ++pendingcnt [ABSPRI (w_)];
214	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	338	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
215	pendings [ABSPRI (w)][w->pending - 1].w = w;	339	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
216	pendings [ABSPRI (w)][w->pending - 1].events = events;	340	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
217	}	341	}
218		342
219	static void	343	static void
220	queue_events (W *events, int eventcnt, int type)	344	queue_events (EV_P_ W *events, int eventcnt, int type)
221	{	345	{
222	int i;	346	int i;
223		347
224	for (i = 0; i < eventcnt; ++i)	348	for (i = 0; i < eventcnt; ++i)
225	event (events [i], type);	349	ev_feed_event (EV_A_ events [i], type);
226	}	350	}
227		351
228	static void	352	inline void
229	fd_event (int fd, int events)	353	fd_event (EV_P_ int fd, int revents)
230	{	354	{
231	ANFD *anfd = anfds + fd;	355	ANFD *anfd = anfds + fd;
232	struct ev_io *w;	356	struct ev_io *w;
233		357
234	for (w = anfd->head; w; w = w->next)	358	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
235	{	359	{
236	int ev = w->events & events;	360	int ev = w->events & revents;
237		361
238	if (ev)	362	if (ev)
239	event ((W)w, ev);	363	ev_feed_event (EV_A_ (W)w, ev);
240	}	364	}
		365	}
		366
		367	void
		368	ev_feed_fd_event (EV_P_ int fd, int revents)
		369	{
		370	fd_event (EV_A_ fd, revents);
241	}	371	}
242		372
243	/*****************************************************************************/	373	/*****************************************************************************/
244		374
245	static int *fdchanges;
246	static int fdchangemax, fdchangecnt;
247
248	static void	375	static void
249	fd_reify (void)	376	fd_reify (EV_P)
250	{	377	{
251	int i;	378	int i;
252		379
253	for (i = 0; i < fdchangecnt; ++i)	380	for (i = 0; i < fdchangecnt; ++i)
254	{	381	{
…		…
256	ANFD *anfd = anfds + fd;	383	ANFD *anfd = anfds + fd;
257	struct ev_io *w;	384	struct ev_io *w;
258		385
259	int events = 0;	386	int events = 0;
260		387
261	for (w = anfd->head; w; w = w->next)	388	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
262	events |= w->events;	389	events |= w->events;
263		390
264	anfd->reify = 0;	391	anfd->reify = 0;
265		392
266	if (anfd->events != events)
267	{
268	method_modify (fd, anfd->events, events);	393	method_modify (EV_A_ fd, anfd->events, events);
269	anfd->events = events;	394	anfd->events = events;
270	}
271	}	395	}
272		396
273	fdchangecnt = 0;	397	fdchangecnt = 0;
274	}	398	}
275		399
276	static void	400	static void
277	fd_change (int fd)	401	fd_change (EV_P_ int fd)
278	{	402	{
279	if (anfds [fd].reify || fdchangecnt < 0)	403	if (anfds [fd].reify)
280	return;	404	return;
281		405
282	anfds [fd].reify = 1;	406	anfds [fd].reify = 1;
283		407
284	++fdchangecnt;	408	++fdchangecnt;
285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	409	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
286	fdchanges [fdchangecnt - 1] = fd;	410	fdchanges [fdchangecnt - 1] = fd;
287	}	411	}
288		412
289	static void	413	static void
290	fd_kill (int fd)	414	fd_kill (EV_P_ int fd)
291	{	415	{
292	struct ev_io *w;	416	struct ev_io *w;
293		417
294	printf ("killing fd %d\n", fd);//D
295	while ((w = anfds [fd].head))	418	while ((w = (struct ev_io *)anfds [fd].head))
296	{	419	{
297	ev_io_stop (w);	420	ev_io_stop (EV_A_ w);
298	event ((W)w, EV_ERROR | EV_READ | EV_WRITE);	421	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
299	}	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
300	}	433	}
301		434
302	/* called on EBADF to verify fds */	435	/* called on EBADF to verify fds */
303	static void	436	static void
304	fd_ebadf (void)	437	fd_ebadf (EV_P)
305	{	438	{
306	int fd;	439	int fd;
307		440
308	for (fd = 0; fd < anfdmax; ++fd)	441	for (fd = 0; fd < anfdmax; ++fd)
309	if (anfds [fd].events)	442	if (anfds [fd].events)
310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	443	if (!fd_valid (fd) == -1 && errno == EBADF)
311	fd_kill (fd);	444	fd_kill (EV_A_ fd);
312	}	445	}
313		446
314	/* called on ENOMEM in select/poll to kill some fds and retry */	447	/* called on ENOMEM in select/poll to kill some fds and retry */
315	static void	448	static void
316	fd_enomem (void)	449	fd_enomem (EV_P)
317	{	450	{
318	int fd = anfdmax;	451	int fd;
319		452
320	while (fd--)	453	for (fd = anfdmax; fd--; )
321	if (anfds [fd].events)	454	if (anfds [fd].events)
322	{	455	{
323	close (fd);
324	fd_kill (fd);	456	fd_kill (EV_A_ fd);
325	return;	457	return;
326	}	458	}
327	}	459	}
328		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	}
		474	}
		475
329	/*****************************************************************************/	476	/*****************************************************************************/
330		477
331	static struct ev_timer **timers;
332	static int timermax, timercnt;
333
334	static struct ev_periodic **periodics;
335	static int periodicmax, periodiccnt;
336
337	static void	478	static void
338	upheap (WT *timers, int k)	479	upheap (WT *heap, int k)
339	{	480	{
340	WT w = timers [k];	481	WT w = heap [k];
341		482
342	while (k && timers [k >> 1]->at > w->at)	483	while (k && heap [k >> 1]->at > w->at)
343	{	484	{
344	timers [k] = timers [k >> 1];	485	heap [k] = heap [k >> 1];
345	timers [k]->active = k + 1;	486	((W)heap [k])->active = k + 1;
346	k >>= 1;	487	k >>= 1;
347	}	488	}
348		489
349	timers [k] = w;	490	heap [k] = w;
350	timers [k]->active = k + 1;	491	((W)heap [k])->active = k + 1;
351		492
352	}	493	}
353		494
354	static void	495	static void
355	downheap (WT *timers, int N, int k)	496	downheap (WT *heap, int N, int k)
356	{	497	{
357	WT w = timers [k];	498	WT w = heap [k];
358		499
359	while (k < (N >> 1))	500	while (k < (N >> 1))
360	{	501	{
361	int j = k << 1;	502	int j = k << 1;
362		503
363	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	504	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364	++j;	505	++j;
365		506
366	if (w->at <= timers [j]->at)	507	if (w->at <= heap [j]->at)
367	break;	508	break;
368		509
369	timers [k] = timers [j];	510	heap [k] = heap [j];
370	timers [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
371	k = j;	512	k = j;
372	}	513	}
373		514
374	timers [k] = w;	515	heap [k] = w;
375	timers [k]->active = k + 1;	516	((W)heap [k])->active = k + 1;
376	}	517	}
377		518
378	/*****************************************************************************/	519	/*****************************************************************************/
379		520
380	typedef struct	521	typedef struct
381	{	522	{
382	struct ev_signal *head;	523	WL head;
383	sig_atomic_t volatile gotsig;	524	sig_atomic_t volatile gotsig;
384	} ANSIG;	525	} ANSIG;
385		526
386	static ANSIG *signals;	527	static ANSIG *signals;
387	static int signalmax;	528	static int signalmax;
…		…
403	}	544	}
404		545
405	static void	546	static void
406	sighandler (int signum)	547	sighandler (int signum)
407	{	548	{
		549	#if WIN32
		550	signal (signum, sighandler);
		551	#endif
		552
408	signals [signum - 1].gotsig = 1;	553	signals [signum - 1].gotsig = 1;
409		554
410	if (!gotsig)	555	if (!gotsig)
411	{	556	{
		557	int old_errno = errno;
412	gotsig = 1;	558	gotsig = 1;
		559	#ifdef WIN32
		560	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		561	#else
413	write (sigpipe [1], &signum, 1);	562	write (sigpipe [1], &signum, 1);
		563	#endif
		564	errno = old_errno;
414	}	565	}
415	}	566	}
416		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
417	static void	588	static void
418	sigcb (struct ev_io *iow, int revents)	589	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	590	{
420	struct ev_signal *w;
421	int signum;	591	int signum;
422		592
		593	#ifdef WIN32
		594	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		595	#else
423	read (sigpipe [0], &revents, 1);	596	read (sigpipe [0], &revents, 1);
		597	#endif
424	gotsig = 0;	598	gotsig = 0;
425		599
426	for (signum = signalmax; signum--; )	600	for (signum = signalmax; signum--; )
427	if (signals [signum].gotsig)	601	if (signals [signum].gotsig)
428	{	602	ev_feed_signal_event (EV_A_ signum + 1);
429	signals [signum].gotsig = 0;
430
431	for (w = signals [signum].head; w; w = w->next)
432	event ((W)w, EV_SIGNAL);
433	}
434	}	603	}
435		604
436	static void	605	static void
437	siginit (void)	606	siginit (EV_P)
438	{	607	{
		608	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	609	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	610	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		611
442	/* rather than sort out wether we really need nb, set it */	612	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	613	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	614	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		615	#endif
445		616
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	617	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	618	ev_io_start (EV_A_ &sigev);
		619	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	620	}
449		621
450	/*****************************************************************************/	622	/*****************************************************************************/
451		623
452	static struct ev_idle **idles;
453	static int idlemax, idlecnt;
454
455	static struct ev_prepare **prepares;
456	static int preparemax, preparecnt;
457
458	static struct ev_check **checks;
459	static int checkmax, checkcnt;
460
461	/*****************************************************************************/
462
463	static struct ev_child *childs [PID_HASHSIZE];	624	static struct ev_child *childs [PID_HASHSIZE];
		625
		626	#ifndef WIN32
		627
464	static struct ev_signal childev;	628	static struct ev_signal childev;
465		629
466	#ifndef WCONTINUED	630	#ifndef WCONTINUED
467	# define WCONTINUED 0	631	# define WCONTINUED 0
468	#endif	632	#endif
469		633
470	static void	634	static void
471	childcb (struct ev_signal *sw, int revents)	635	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	636	{
473	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	{
474	int pid, status;	652	int pid, status;
475		653
476	while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1)	654	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	655	{
478	if (w->pid == pid || !w->pid)	656	/* make sure we are called again until all childs have been reaped */
479	{	657	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	658
481	event ((W)w, EV_CHILD);	659	child_reap (EV_A_ sw, pid, pid, status);
482	}	660	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		661	}
483	}	662	}
		663
		664	#endif
484		665
485	/*****************************************************************************/	666	/*****************************************************************************/
486		667
		668	#if EV_USE_KQUEUE
		669	# include "ev_kqueue.c"
		670	#endif
487	#if EV_USE_EPOLL	671	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	672	# include "ev_epoll.c"
489	#endif	673	#endif
490	#if EV_USE_POLL	674	#if EV_USE_POLL
491	# include "ev_poll.c"	675	# include "ev_poll.c"
…		…
504	ev_version_minor (void)	688	ev_version_minor (void)
505	{	689	{
506	return EV_VERSION_MINOR;	690	return EV_VERSION_MINOR;
507	}	691	}
508		692
509	/* return true if we are running with elevated privileges and ignore env variables */	693	/* return true if we are running with elevated privileges and should ignore env variables */
510	static int	694	static int
511	enable_secure ()	695	enable_secure (void)
512	{	696	{
		697	#ifdef WIN32
		698	return 0;
		699	#else
513	return getuid () != geteuid ()	700	return getuid () != geteuid ()
514	|| getgid () != getegid ();	701	|| getgid () != getegid ();
		702	#endif
515	}	703	}
516		704
517	int ev_init (int methods)	705	int
		706	ev_method (EV_P)
518	{	707	{
		708	return method;
		709	}
		710
		711	static void
		712	loop_init (EV_P_ int methods)
		713	{
519	if (!ev_method)	714	if (!method)
520	{	715	{
521	#if EV_USE_MONOTONIC	716	#if EV_USE_MONOTONIC
522	{	717	{
523	struct timespec ts;	718	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	719	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	720	have_monotonic = 1;
526	}	721	}
527	#endif	722	#endif
528		723
529	ev_now = ev_time ();	724	rt_now = ev_time ();
530	now = get_clock ();	725	mn_now = get_clock ();
531	now_floor = now;	726	now_floor = mn_now;
532	diff = ev_now - now;	727	rtmn_diff = rt_now - mn_now;
533
534	if (pipe (sigpipe))
535	return 0;
536		728
537	if (methods == EVMETHOD_AUTO)	729	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	730	if (!enable_secure () && getenv ("LIBEV_METHODS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	731	methods = atoi (getenv ("LIBEV_METHODS"));
540	else	732	else
541	methods = EVMETHOD_ANY;	733	methods = EVMETHOD_ANY;
542		734
543	ev_method = 0;	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
544	#if EV_USE_EPOLL	742	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	743	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	744	#endif
547	#if EV_USE_POLL	745	#if EV_USE_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	746	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	747	#endif
550	#if EV_USE_SELECT	748	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	749	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	750	#endif
553		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
554	if (ev_method)	872	if (ev_method (EV_A))
555	{	873	{
556	ev_watcher_init (&sigev, sigcb);
557	siginit ();	874	siginit (EV_A);
558		875
		876	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	877	ev_signal_init (&childev, childcb, SIGCHLD);
		878	ev_set_priority (&childev, EV_MAXPRI);
560	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
561	}	882	}
		883	else
		884	default_loop = 0;
562	}	885	}
563		886
564	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;
565	}	920	}
566		921
567	/*****************************************************************************/	922	/*****************************************************************************/
568		923
569	void
570	ev_fork_prepare (void)
571	{
572	/* nop */
573	}
574
575	void
576	ev_fork_parent (void)
577	{
578	/* nop */
579	}
580
581	void
582	ev_fork_child (void)
583	{
584	#if EV_USE_EPOLL
585	if (ev_method == EVMETHOD_EPOLL)
586	epoll_postfork_child ();
587	#endif
588
589	ev_io_stop (&sigev);
590	close (sigpipe [0]);
591	close (sigpipe [1]);
592	pipe (sigpipe);
593	siginit ();
594	}
595
596	/*****************************************************************************/
597
598	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
599	call_pending (void)	937	call_pending (EV_P)
600	{	938	{
601	int pri;	939	int pri;
602		940
603	for (pri = NUMPRI; pri--; )	941	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	942	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	944	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		945
608	if (p->w)	946	if (p->w)
609	{	947	{
610	p->w->pending = 0;	948	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	949	p->w->cb (EV_A_ p->w, p->events);
612	}	950	}
613	}	951	}
614	}	952	}
615		953
616	static void	954	static void
617	timers_reify (void)	955	timers_reify (EV_P)
618	{	956	{
619	while (timercnt && timers [0]->at <= now)	957	while (timercnt && ((WT)timers [0])->at <= mn_now)
620	{	958	{
621	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)));
622		962
623	/* first reschedule or stop timer */	963	/* first reschedule or stop timer */
624	if (w->repeat)	964	if (w->repeat)
625	{	965	{
626	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	966	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
627	w->at = now + w->repeat;	967	((WT)w)->at = mn_now + w->repeat;
628	downheap ((WT *)timers, timercnt, 0);	968	downheap ((WT *)timers, timercnt, 0);
629	}	969	}
630	else	970	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	971	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		972
633	event ((W)w, EV_TIMEOUT);	973	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
634	}	974	}
635	}	975	}
636		976
637	static void	977	static void
638	periodics_reify (void)	978	periodics_reify (EV_P)
639	{	979	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	980	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
641	{	981	{
642	struct ev_periodic *w = periodics [0];	982	struct ev_periodic *w = periodics [0];
643		983
		984	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		985
644	/* first reschedule or stop timer */	986	/* first reschedule or stop timer */
645	if (w->interval)	987	if (w->reschedule_cb)
646	{	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	{
647	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;
648	assert (("ev_periodic timeout in the past detected while processing timers, 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));
649	downheap ((WT *)periodics, periodiccnt, 0);	998	downheap ((WT *)periodics, periodiccnt, 0);
650	}	999	}
651	else	1000	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	1001	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		1002
654	event ((W)w, EV_PERIODIC);	1003	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
655	}	1004	}
656	}	1005	}
657		1006
658	static void	1007	static void
659	periodics_reschedule (ev_tstamp diff)	1008	periodics_reschedule (EV_P)
660	{	1009	{
661	int i;	1010	int i;
662		1011
663	/* adjust periodics after time jump */	1012	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	1013	for (i = 0; i < periodiccnt; ++i)
665	{	1014	{
666	struct ev_periodic *w = periodics [i];	1015	struct ev_periodic *w = periodics [i];
667		1016
		1017	if (w->reschedule_cb)
		1018	((WT)w)->at = w->reschedule_cb (w, rt_now);
668	if (w->interval)	1019	else if (w->interval)
669	{
670	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1020	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
671
672	if (fabs (diff) >= 1e-4)
673	{
674	ev_periodic_stop (w);
675	ev_periodic_start (w);
676
677	i = 0; /* restart loop, inefficient, but time jumps should be rare */
678	}
679	}
680	}	1021	}
681	}
682		1022
683	static int	1023	/* now rebuild the heap */
		1024	for (i = periodiccnt >> 1; i--; )
		1025	downheap ((WT *)periodics, periodiccnt, i);
		1026	}
		1027
		1028	inline int
684	time_update_monotonic (void)	1029	time_update_monotonic (EV_P)
685	{	1030	{
686	now = get_clock ();	1031	mn_now = get_clock ();
687		1032
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1033	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	1034	{
690	ev_now = now + diff;	1035	rt_now = rtmn_diff + mn_now;
691	return 0;	1036	return 0;
692	}	1037	}
693	else	1038	else
694	{	1039	{
695	now_floor = now;	1040	now_floor = mn_now;
696	ev_now = ev_time ();	1041	rt_now = ev_time ();
697	return 1;	1042	return 1;
698	}	1043	}
699	}	1044	}
700		1045
701	static void	1046	static void
702	time_update (void)	1047	time_update (EV_P)
703	{	1048	{
704	int i;	1049	int i;
705		1050
706	#if EV_USE_MONOTONIC	1051	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	1052	if (expect_true (have_monotonic))
708	{	1053	{
709	if (time_update_monotonic ())	1054	if (time_update_monotonic (EV_A))
710	{	1055	{
711	ev_tstamp odiff = diff;	1056	ev_tstamp odiff = rtmn_diff;
712		1057
713	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1058	for (i = 4; --i; ) /* loop a few times, before making important decisions */
714	{	1059	{
715	diff = ev_now - now;	1060	rtmn_diff = rt_now - mn_now;
716		1061
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1062	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
718	return; /* all is well */	1063	return; /* all is well */
719		1064
720	ev_now = ev_time ();	1065	rt_now = ev_time ();
721	now = get_clock ();	1066	mn_now = get_clock ();
722	now_floor = now;	1067	now_floor = mn_now;
723	}	1068	}
724		1069
725	periodics_reschedule (diff - odiff);	1070	periodics_reschedule (EV_A);
726	/* no timer adjustment, as the monotonic clock doesn't jump */	1071	/* no timer adjustment, as the monotonic clock doesn't jump */
		1072	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
727	}	1073	}
728	}	1074	}
729	else	1075	else
730	#endif	1076	#endif
731	{	1077	{
732	ev_now = ev_time ();	1078	rt_now = ev_time ();
733		1079
734	if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1080	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
735	{	1081	{
736	periodics_reschedule (ev_now - now);	1082	periodics_reschedule (EV_A);
737		1083
738	/* 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 */
739	for (i = 0; i < timercnt; ++i)	1085	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	1086	((WT)timers [i])->at += rt_now - mn_now;
741	}	1087	}
742		1088
743	now = ev_now;	1089	mn_now = rt_now;
744	}	1090	}
745	}	1091	}
746		1092
747	int ev_loop_done;	1093	void
		1094	ev_ref (EV_P)
		1095	{
		1096	++activecnt;
		1097	}
748		1098
		1099	void
		1100	ev_unref (EV_P)
		1101	{
		1102	--activecnt;
		1103	}
		1104
		1105	static int loop_done;
		1106
		1107	void
749	void ev_loop (int flags)	1108	ev_loop (EV_P_ int flags)
750	{	1109	{
751	double block;	1110	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1111	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
753		1112
754	do	1113	do
755	{	1114	{
756	/* queue check watchers (and execute them) */	1115	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	1116	if (expect_false (preparecnt))
758	{	1117	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1118	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	1119	call_pending (EV_A);
761	}	1120	}
762		1121
		1122	/* we might have forked, so reify kernel state if necessary */
		1123	if (expect_false (postfork))
		1124	loop_fork (EV_A);
		1125
763	/* update fd-related kernel structures */	1126	/* update fd-related kernel structures */
764	fd_reify ();	1127	fd_reify (EV_A);
765		1128
766	/* calculate blocking time */	1129	/* calculate blocking time */
767		1130
768	/* 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
769	always have timers, we just calculate it always */	1132	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	1133	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	1134	if (expect_true (have_monotonic))
772	time_update_monotonic ();	1135	time_update_monotonic (EV_A);
773	else	1136	else
774	#endif	1137	#endif
775	{	1138	{
776	ev_now = ev_time ();	1139	rt_now = ev_time ();
777	now = ev_now;	1140	mn_now = rt_now;
778	}	1141	}
779		1142
780	if (flags & EVLOOP_NONBLOCK || idlecnt)	1143	if (flags & EVLOOP_NONBLOCK || idlecnt)
781	block = 0.;	1144	block = 0.;
782	else	1145	else
783	{	1146	{
784	block = MAX_BLOCKTIME;	1147	block = MAX_BLOCKTIME;
785		1148
786	if (timercnt)	1149	if (timercnt)
787	{	1150	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	1151	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
789	if (block > to) block = to;	1152	if (block > to) block = to;
790	}	1153	}
791		1154
792	if (periodiccnt)	1155	if (periodiccnt)
793	{	1156	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1157	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
795	if (block > to) block = to;	1158	if (block > to) block = to;
796	}	1159	}
797		1160
798	if (block < 0.) block = 0.;	1161	if (block < 0.) block = 0.;
799	}	1162	}
800		1163
801	method_poll (block);	1164	method_poll (EV_A_ block);
802		1165
803	/* update ev_now, do magic */	1166	/* update rt_now, do magic */
804	time_update ();	1167	time_update (EV_A);
805		1168
806	/* queue pending timers and reschedule them */	1169	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	1170	timers_reify (EV_A); /* relative timers called last */
808	periodics_reify (); /* absolute timers called first */	1171	periodics_reify (EV_A); /* absolute timers called first */
809		1172
810	/* queue idle watchers unless io or timers are pending */	1173	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	1174	if (idlecnt && !any_pending (EV_A))
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	1175	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		1176
814	/* queue check watchers, to be executed first */	1177	/* queue check watchers, to be executed first */
815	if (checkcnt)	1178	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	1179	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		1180
818	call_pending ();	1181	call_pending (EV_A);
819	}	1182	}
820	while (!ev_loop_done);	1183	while (activecnt && !loop_done);
821		1184
822	if (ev_loop_done != 2)	1185	if (loop_done != 2)
823	ev_loop_done = 0;	1186	loop_done = 0;
		1187	}
		1188
		1189	void
		1190	ev_unloop (EV_P_ int how)
		1191	{
		1192	loop_done = how;
824	}	1193	}
825		1194
826	/*****************************************************************************/	1195	/*****************************************************************************/
827		1196
828	static void	1197	inline void
829	wlist_add (WL *head, WL elem)	1198	wlist_add (WL *head, WL elem)
830	{	1199	{
831	elem->next = *head;	1200	elem->next = *head;
832	*head = elem;	1201	*head = elem;
833	}	1202	}
834		1203
835	static void	1204	inline void
836	wlist_del (WL *head, WL elem)	1205	wlist_del (WL *head, WL elem)
837	{	1206	{
838	while (*head)	1207	while (*head)
839	{	1208	{
840	if (*head == elem)	1209	if (*head == elem)
…		…
845		1214
846	head = &(*head)->next;	1215	head = &(*head)->next;
847	}	1216	}
848	}	1217	}
849		1218
850	static void	1219	inline void
851	ev_clear_pending (W w)	1220	ev_clear_pending (EV_P_ W w)
852	{	1221	{
853	if (w->pending)	1222	if (w->pending)
854	{	1223	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1224	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	1225	w->pending = 0;
857	}	1226	}
858	}	1227	}
859		1228
860	static void	1229	inline void
861	ev_start (W w, int active)	1230	ev_start (EV_P_ W w, int active)
862	{	1231	{
863	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1232	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
864	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1233	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
865		1234
866	w->active = active;	1235	w->active = active;
		1236	ev_ref (EV_A);
867	}	1237	}
868		1238
869	static void	1239	inline void
870	ev_stop (W w)	1240	ev_stop (EV_P_ W w)
871	{	1241	{
		1242	ev_unref (EV_A);
872	w->active = 0;	1243	w->active = 0;
873	}	1244	}
874		1245
875	/*****************************************************************************/	1246	/*****************************************************************************/
876		1247
877	void	1248	void
878	ev_io_start (struct ev_io *w)	1249	ev_io_start (EV_P_ struct ev_io *w)
879	{	1250	{
880	int fd = w->fd;	1251	int fd = w->fd;
881		1252
882	if (ev_is_active (w))	1253	if (ev_is_active (w))
883	return;	1254	return;
884		1255
885	assert (("ev_io_start called with negative fd", fd >= 0));	1256	assert (("ev_io_start called with negative fd", fd >= 0));
886		1257
887	ev_start ((W)w, 1);	1258	ev_start (EV_A_ (W)w, 1);
888	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1259	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
889	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1260	wlist_add ((WL *)&anfds[fd].head, (WL)w);
890		1261
891	fd_change (fd);	1262	fd_change (EV_A_ fd);
892	}	1263	}
893		1264
894	void	1265	void
895	ev_io_stop (struct ev_io *w)	1266	ev_io_stop (EV_P_ struct ev_io *w)
896	{	1267	{
897	ev_clear_pending ((W)w);	1268	ev_clear_pending (EV_A_ (W)w);
898	if (!ev_is_active (w))	1269	if (!ev_is_active (w))
899	return;	1270	return;
900		1271
901	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1272	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
902	ev_stop ((W)w);	1273	ev_stop (EV_A_ (W)w);
903		1274
904	fd_change (w->fd);	1275	fd_change (EV_A_ w->fd);
905	}	1276	}
906		1277
907	void	1278	void
908	ev_timer_start (struct ev_timer *w)	1279	ev_timer_start (EV_P_ struct ev_timer *w)
909	{	1280	{
910	if (ev_is_active (w))	1281	if (ev_is_active (w))
911	return;	1282	return;
912		1283
913	w->at += now;	1284	((WT)w)->at += mn_now;
914		1285
915	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1286	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
916		1287
917	ev_start ((W)w, ++timercnt);	1288	ev_start (EV_A_ (W)w, ++timercnt);
918	array_needsize (timers, timermax, timercnt, );	1289	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
919	timers [timercnt - 1] = w;	1290	timers [timercnt - 1] = w;
920	upheap ((WT *)timers, timercnt - 1);	1291	upheap ((WT *)timers, timercnt - 1);
921	}
922		1292
		1293	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1294	}
		1295
923	void	1296	void
924	ev_timer_stop (struct ev_timer *w)	1297	ev_timer_stop (EV_P_ struct ev_timer *w)
925	{	1298	{
926	ev_clear_pending ((W)w);	1299	ev_clear_pending (EV_A_ (W)w);
927	if (!ev_is_active (w))	1300	if (!ev_is_active (w))
928	return;	1301	return;
929		1302
		1303	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1304
930	if (w->active < timercnt--)	1305	if (((W)w)->active < timercnt--)
931	{	1306	{
932	timers [w->active - 1] = timers [timercnt];	1307	timers [((W)w)->active - 1] = timers [timercnt];
933	downheap ((WT *)timers, timercnt, w->active - 1);	1308	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
934	}	1309	}
935		1310
936	w->at = w->repeat;	1311	((WT)w)->at = w->repeat;
937		1312
938	ev_stop ((W)w);	1313	ev_stop (EV_A_ (W)w);
939	}	1314	}
940		1315
941	void	1316	void
942	ev_timer_again (struct ev_timer *w)	1317	ev_timer_again (EV_P_ struct ev_timer *w)
943	{	1318	{
944	if (ev_is_active (w))	1319	if (ev_is_active (w))
945	{	1320	{
946	if (w->repeat)	1321	if (w->repeat)
947	{	1322	{
948	w->at = now + w->repeat;	1323	((WT)w)->at = mn_now + w->repeat;
949	downheap ((WT *)timers, timercnt, w->active - 1);	1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
950	}	1325	}
951	else	1326	else
952	ev_timer_stop (w);	1327	ev_timer_stop (EV_A_ w);
953	}	1328	}
954	else if (w->repeat)	1329	else if (w->repeat)
955	ev_timer_start (w);	1330	ev_timer_start (EV_A_ w);
956	}	1331	}
957		1332
958	void	1333	void
959	ev_periodic_start (struct ev_periodic *w)	1334	ev_periodic_start (EV_P_ struct ev_periodic *w)
960	{	1335	{
961	if (ev_is_active (w))	1336	if (ev_is_active (w))
962	return;	1337	return;
963		1338
		1339	if (w->reschedule_cb)
		1340	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1341	else if (w->interval)
		1342	{
964	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1343	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
965
966	/* 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 */
967	if (w->interval)
968	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	}
969		1347
970	ev_start ((W)w, ++periodiccnt);	1348	ev_start (EV_A_ (W)w, ++periodiccnt);
971	array_needsize (periodics, periodicmax, periodiccnt, );	1349	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
972	periodics [periodiccnt - 1] = w;	1350	periodics [periodiccnt - 1] = w;
973	upheap ((WT *)periodics, periodiccnt - 1);	1351	upheap ((WT *)periodics, periodiccnt - 1);
974	}
975		1352
		1353	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1354	}
		1355
976	void	1356	void
977	ev_periodic_stop (struct ev_periodic *w)	1357	ev_periodic_stop (EV_P_ struct ev_periodic *w)
978	{	1358	{
979	ev_clear_pending ((W)w);	1359	ev_clear_pending (EV_A_ (W)w);
980	if (!ev_is_active (w))	1360	if (!ev_is_active (w))
981	return;	1361	return;
982		1362
		1363	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1364
983	if (w->active < periodiccnt--)	1365	if (((W)w)->active < periodiccnt--)
984	{	1366	{
985	periodics [w->active - 1] = periodics [periodiccnt];	1367	periodics [((W)w)->active - 1] = periodics [periodiccnt];
986	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1368	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
987	}	1369	}
988		1370
989	ev_stop ((W)w);	1371	ev_stop (EV_A_ (W)w);
990	}	1372	}
991		1373
992	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
993	ev_signal_start (struct ev_signal *w)	1382	ev_idle_start (EV_P_ struct ev_idle *w)
994	{	1383	{
995	if (ev_is_active (w))	1384	if (ev_is_active (w))
996	return;	1385	return;
997		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
998	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1460	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
999		1461
1000	ev_start ((W)w, 1);	1462	ev_start (EV_A_ (W)w, 1);
1001	array_needsize (signals, signalmax, w->signum, signals_init);	1463	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1002	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1464	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1003		1465
1004	if (!w->next)	1466	if (!((WL)w)->next)
1005	{	1467	{
		1468	#if WIN32
		1469	signal (w->signum, sighandler);
		1470	#else
1006	struct sigaction sa;	1471	struct sigaction sa;
1007	sa.sa_handler = sighandler;	1472	sa.sa_handler = sighandler;
1008	sigfillset (&sa.sa_mask);	1473	sigfillset (&sa.sa_mask);
1009	sa.sa_flags = 0;	1474	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1010	sigaction (w->signum, &sa, 0);	1475	sigaction (w->signum, &sa, 0);
		1476	#endif
1011	}	1477	}
1012	}	1478	}
1013		1479
1014	void	1480	void
1015	ev_signal_stop (struct ev_signal *w)	1481	ev_signal_stop (EV_P_ struct ev_signal *w)
1016	{	1482	{
1017	ev_clear_pending ((W)w);	1483	ev_clear_pending (EV_A_ (W)w);
1018	if (!ev_is_active (w))	1484	if (!ev_is_active (w))
1019	return;	1485	return;
1020		1486
1021	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1487	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1022	ev_stop ((W)w);	1488	ev_stop (EV_A_ (W)w);
1023		1489
1024	if (!signals [w->signum - 1].head)	1490	if (!signals [w->signum - 1].head)
1025	signal (w->signum, SIG_DFL);	1491	signal (w->signum, SIG_DFL);
1026	}	1492	}
1027		1493
1028	void	1494	void
1029	ev_idle_start (struct ev_idle *w)	1495	ev_child_start (EV_P_ struct ev_child *w)
1030	{	1496	{
		1497	#if EV_MULTIPLICITY
		1498	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1499	#endif
1031	if (ev_is_active (w))	1500	if (ev_is_active (w))
1032	return;	1501	return;
1033		1502
1034	ev_start ((W)w, ++idlecnt);	1503	ev_start (EV_A_ (W)w, 1);
1035	array_needsize (idles, idlemax, idlecnt, );	1504	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1036	idles [idlecnt - 1] = w;
1037	}	1505	}
1038		1506
1039	void	1507	void
1040	ev_idle_stop (struct ev_idle *w)	1508	ev_child_stop (EV_P_ struct ev_child *w)
1041	{	1509	{
1042	ev_clear_pending ((W)w);	1510	ev_clear_pending (EV_A_ (W)w);
1043	if (ev_is_active (w))	1511	if (ev_is_active (w))
1044	return;	1512	return;
1045		1513
1046	idles [w->active - 1] = idles [--idlecnt];
1047	ev_stop ((W)w);
1048	}
1049
1050	void
1051	ev_prepare_start (struct ev_prepare *w)
1052	{
1053	if (ev_is_active (w))
1054	return;
1055
1056	ev_start ((W)w, ++preparecnt);
1057	array_needsize (prepares, preparemax, preparecnt, );
1058	prepares [preparecnt - 1] = w;
1059	}
1060
1061	void
1062	ev_prepare_stop (struct ev_prepare *w)
1063	{
1064	ev_clear_pending ((W)w);
1065	if (ev_is_active (w))
1066	return;
1067
1068	prepares [w->active - 1] = prepares [--preparecnt];
1069	ev_stop ((W)w);
1070	}
1071
1072	void
1073	ev_check_start (struct ev_check *w)
1074	{
1075	if (ev_is_active (w))
1076	return;
1077
1078	ev_start ((W)w, ++checkcnt);
1079	array_needsize (checks, checkmax, checkcnt, );
1080	checks [checkcnt - 1] = w;
1081	}
1082
1083	void
1084	ev_check_stop (struct ev_check *w)
1085	{
1086	ev_clear_pending ((W)w);
1087	if (ev_is_active (w))
1088	return;
1089
1090	checks [w->active - 1] = checks [--checkcnt];
1091	ev_stop ((W)w);
1092	}
1093
1094	void
1095	ev_child_start (struct ev_child *w)
1096	{
1097	if (ev_is_active (w))
1098	return;
1099
1100	ev_start ((W)w, 1);
1101	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1102	}
1103
1104	void
1105	ev_child_stop (struct ev_child *w)
1106	{
1107	ev_clear_pending ((W)w);
1108	if (ev_is_active (w))
1109	return;
1110
1111	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1514	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	ev_stop ((W)w);	1515	ev_stop (EV_A_ (W)w);
1113	}	1516	}
1114		1517
1115	/*****************************************************************************/	1518	/*****************************************************************************/
1116		1519
1117	struct ev_once	1520	struct ev_once
…		…
1121	void (*cb)(int revents, void *arg);	1524	void (*cb)(int revents, void *arg);
1122	void *arg;	1525	void *arg;
1123	};	1526	};
1124		1527
1125	static void	1528	static void
1126	once_cb (struct ev_once *once, int revents)	1529	once_cb (EV_P_ struct ev_once *once, int revents)
1127	{	1530	{
1128	void (*cb)(int revents, void *arg) = once->cb;	1531	void (*cb)(int revents, void *arg) = once->cb;
1129	void *arg = once->arg;	1532	void *arg = once->arg;
1130		1533
1131	ev_io_stop (&once->io);	1534	ev_io_stop (EV_A_ &once->io);
1132	ev_timer_stop (&once->to);	1535	ev_timer_stop (EV_A_ &once->to);
1133	free (once);	1536	ev_free (once);
1134		1537
1135	cb (revents, arg);	1538	cb (revents, arg);
1136	}	1539	}
1137		1540
1138	static void	1541	static void
1139	once_cb_io (struct ev_io *w, int revents)	1542	once_cb_io (EV_P_ struct ev_io *w, int revents)
1140	{	1543	{
1141	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);
1142	}	1545	}
1143		1546
1144	static void	1547	static void
1145	once_cb_to (struct ev_timer *w, int revents)	1548	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1146	{	1549	{
1147	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);
1148	}	1551	}
1149		1552
1150	void	1553	void
1151	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)
1152	{	1555	{
1153	struct ev_once *once = malloc (sizeof (struct ev_once));	1556	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1154		1557
1155	if (!once)	1558	if (!once)
1156	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1559	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1157	else	1560	else
1158	{	1561	{
…		…
1161		1564
1162	ev_watcher_init (&once->io, once_cb_io);	1565	ev_watcher_init (&once->io, once_cb_io);
1163	if (fd >= 0)	1566	if (fd >= 0)
1164	{	1567	{
1165	ev_io_set (&once->io, fd, events);	1568	ev_io_set (&once->io, fd, events);
1166	ev_io_start (&once->io);	1569	ev_io_start (EV_A_ &once->io);
1167	}	1570	}
1168		1571
1169	ev_watcher_init (&once->to, once_cb_to);	1572	ev_watcher_init (&once->to, once_cb_to);
1170	if (timeout >= 0.)	1573	if (timeout >= 0.)
1171	{	1574	{
1172	ev_timer_set (&once->to, timeout, 0.);	1575	ev_timer_set (&once->to, timeout, 0.);
1173	ev_timer_start (&once->to);	1576	ev_timer_start (EV_A_ &once->to);
1174	}	1577	}
1175	}	1578	}
1176	}	1579	}
1177		1580
1178	/*****************************************************************************/
1179
1180	#if 0
1181
1182	struct ev_io wio;
1183
1184	static void
1185	sin_cb (struct ev_io *w, int revents)
1186	{
1187	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1188	}
1189
1190	static void
1191	ocb (struct ev_timer *w, int revents)
1192	{
1193	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1194	ev_timer_stop (w);
1195	ev_timer_start (w);
1196	}
1197
1198	static void
1199	scb (struct ev_signal *w, int revents)
1200	{
1201	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1202	ev_io_stop (&wio);
1203	ev_io_start (&wio);
1204	}
1205
1206	static void
1207	gcb (struct ev_signal *w, int revents)
1208	{
1209	fprintf (stderr, "generic %x\n", revents);
1210
1211	}
1212
1213	int main (void)
1214	{
1215	ev_init (0);
1216
1217	ev_io_init (&wio, sin_cb, 0, EV_READ);
1218	ev_io_start (&wio);
1219
1220	struct ev_timer t[10000];
1221
1222	#if 0
1223	int i;
1224	for (i = 0; i < 10000; ++i)
1225	{
1226	struct ev_timer *w = t + i;
1227	ev_watcher_init (w, ocb, i);
1228	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1229	ev_timer_start (w);
1230	if (drand48 () < 0.5)
1231	ev_timer_stop (w);
1232	}
1233	#endif
1234
1235	struct ev_timer t1;
1236	ev_timer_init (&t1, ocb, 5, 10);
1237	ev_timer_start (&t1);
1238
1239	struct ev_signal sig;
1240	ev_signal_init (&sig, scb, SIGQUIT);
1241	ev_signal_start (&sig);
1242
1243	struct ev_check cw;
1244	ev_check_init (&cw, gcb);
1245	ev_check_start (&cw);
1246
1247	struct ev_idle iw;
1248	ev_idle_init (&iw, gcb);
1249	ev_idle_start (&iw);
1250
1251	ev_loop (0);
1252
1253	return 0;
1254	}
1255
1256	#endif
1257
1258
1259
1260

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