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

Comparing libev/ev.c (file contents):
Revision 1.3 by root, Tue Oct 30 21:45:00 2007 UTC vs.
Revision 1.9 by root, Wed Oct 31 07:24:17 2007 UTC

…		…
1	#include <math.h>	1	#include <math.h>
2	#include <stdlib.h>	2	#include <stdlib.h>
		3	#include <unistd.h>
		4	#include <fcntl.h>
		5	#include <signal.h>
3		6
4	#include <stdio.h>	7	#include <stdio.h>
5		8
		9	#include <assert.h>
6	#include <errno.h>	10	#include <errno.h>
7	#include <sys/time.h>	11	#include <sys/time.h>
8	#include <time.h>	12	#include <time.h>
9		13
10	#ifdef CLOCK_MONOTONIC	14	#ifdef CLOCK_MONOTONIC
11	# define HAVE_MONOTONIC 1	15	# define HAVE_MONOTONIC 1
12	#endif	16	#endif
13		17
		18	#define HAVE_REALTIME 1
14	#define HAVE_EPOLL 1	19	#define HAVE_EPOLL 1
15	#define HAVE_REALTIME 1
16	#define HAVE_SELECT 0	20	#define HAVE_SELECT 1
17		21
		22	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
18	#define MAX_BLOCKTIME 60.	23	#define MAX_BLOCKTIME 60.
19		24
20	#include "ev.h"	25	#include "ev.h"
21		26
22	struct ev_watcher {	27	struct ev_watcher {
25		30
26	struct ev_watcher_list {	31	struct ev_watcher_list {
27	EV_WATCHER_LIST (ev_watcher_list);	32	EV_WATCHER_LIST (ev_watcher_list);
28	};	33	};
29		34
		35	static ev_tstamp now, diff; /* monotonic clock */
30	ev_tstamp ev_now;	36	ev_tstamp ev_now;
31	int ev_method;	37	int ev_method;
32		38
33	static int have_monotonic; /* runtime */	39	static int have_monotonic; /* runtime */
34		40
35	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	41	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
36	static void (*method_reify)(void);	42	static void (*method_modify)(int fd, int oev, int nev);
37	static void (*method_poll)(ev_tstamp timeout);	43	static void (*method_poll)(ev_tstamp timeout);
		44
		45	/*****************************************************************************/
38		46
39	ev_tstamp	47	ev_tstamp
40	ev_time (void)	48	ev_time (void)
41	{	49	{
42	#if HAVE_REALTIME	50	#if HAVE_REALTIME
…		…
73	base = realloc (base, sizeof (base) (newcnt)); \	81	base = realloc (base, sizeof (base) (newcnt)); \
74	init (base + cur, newcnt - cur); \	82	init (base + cur, newcnt - cur); \
75	cur = newcnt; \	83	cur = newcnt; \
76	}	84	}
77		85
		86	/*****************************************************************************/
		87
78	typedef struct	88	typedef struct
79	{	89	{
80	struct ev_io *head;	90	struct ev_io *head;
81	unsigned char wev, rev; /* want, received event set */	91	unsigned char wev, rev; /* want, received event set */
82	} ANFD;	92	} ANFD;
…		…
129	if (ev)	139	if (ev)
130	event ((struct ev_watcher *)w, ev);	140	event ((struct ev_watcher *)w, ev);
131	}	141	}
132	}	142	}
133		143
		144	static void
		145	queue_events (struct ev_watcher **events, int eventcnt, int type)
		146	{
		147	int i;
		148
		149	for (i = 0; i < eventcnt; ++i)
		150	event (events [i], type);
		151	}
		152
		153	/*****************************************************************************/
		154
134	static struct ev_timer **timers;	155	static struct ev_timer **atimers;
135	static int timermax, timercnt;	156	static int atimermax, atimercnt;
136		157
		158	static struct ev_timer **rtimers;
		159	static int rtimermax, rtimercnt;
		160
137	static void	161	static void
138	upheap (int k)	162	upheap (struct ev_timer **timers, int k)
139	{	163	{
140	struct ev_timer *w = timers [k];	164	struct ev_timer *w = timers [k];
141		165
142	while (k && timers [k >> 1]->at > w->at)	166	while (k && timers [k >> 1]->at > w->at)
143	{	167	{
…		…
150	timers [k]->active = k + 1;	174	timers [k]->active = k + 1;
151		175
152	}	176	}
153		177
154	static void	178	static void
155	downheap (int k)	179	downheap (struct ev_timer **timers, int N, int k)
156	{	180	{
157	struct ev_timer *w = timers [k];	181	struct ev_timer *w = timers [k];
158		182
159	while (k < (timercnt >> 1))	183	while (k < (N >> 1))
160	{	184	{
161	int j = k << 1;	185	int j = k << 1;
162		186
163	if (j + 1 < timercnt && timers [j]->at > timers [j + 1]->at)	187	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)
164	++j;	188	++j;
165		189
166	if (w->at <= timers [j]->at)	190	if (w->at <= timers [j]->at)
167	break;	191	break;
168		192
…		…
173		197
174	timers [k] = w;	198	timers [k] = w;
175	timers [k]->active = k + 1;	199	timers [k]->active = k + 1;
176	}	200	}
177		201
178	static struct ev_signal **signals;	202	/*****************************************************************************/
		203
		204	typedef struct
		205	{
		206	struct ev_signal *head;
		207	sig_atomic_t gotsig;
		208	} ANSIG;
		209
		210	static ANSIG *signals;
179	static int signalmax, signalcnt;	211	static int signalmax;
180		212
		213	static int sigpipe [2];
		214	static sig_atomic_t gotsig;
		215	static struct ev_io sigev;
		216
181	static void	217	static void
182	signals_init (struct ev_signal **base, int count)	218	signals_init (ANSIG *base, int count)
183	{	219	{
184	while (count--)	220	while (count--)
185	*base++ = 0;	221	{
		222	base->head = 0;
		223	base->gotsig = 0;
		224	++base;
		225	}
186	}	226	}
		227
		228	static void
		229	sighandler (int signum)
		230	{
		231	signals [signum - 1].gotsig = 1;
		232
		233	if (!gotsig)
		234	{
		235	gotsig = 1;
		236	write (sigpipe [1], &gotsig, 1);
		237	}
		238	}
		239
		240	static void
		241	sigcb (struct ev_io *iow, int revents)
		242	{
		243	struct ev_signal *w;
		244	int sig;
		245
		246	gotsig = 0;
		247	read (sigpipe [0], &revents, 1);
		248
		249	for (sig = signalmax; sig--; )
		250	if (signals [sig].gotsig)
		251	{
		252	signals [sig].gotsig = 0;
		253
		254	for (w = signals [sig].head; w; w = w->next)
		255	event ((struct ev_watcher *)w, EV_SIGNAL);
		256	}
		257	}
		258
		259	static void
		260	siginit (void)
		261	{
		262	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
		263	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
		264
		265	/* rather than sort out wether we really need nb, set it */
		266	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
		267	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		268
		269	evio_set (&sigev, sigpipe [0], EV_READ);
		270	evio_start (&sigev);
		271	}
		272
		273	/*****************************************************************************/
		274
		275	static struct ev_idle **idles;
		276	static int idlemax, idlecnt;
		277
		278	static struct ev_check **checks;
		279	static int checkmax, checkcnt;
		280
		281	/*****************************************************************************/
187		282
188	#if HAVE_EPOLL	283	#if HAVE_EPOLL
189	# include "ev_epoll.c"	284	# include "ev_epoll.c"
190	#endif	285	#endif
191	#if HAVE_SELECT	286	#if HAVE_SELECT
…		…
201	have_monotonic = 1;	296	have_monotonic = 1;
202	}	297	}
203	#endif	298	#endif
204		299
205	ev_now = ev_time ();	300	ev_now = ev_time ();
		301	now = get_clock ();
		302	diff = ev_now - now;
206		303
		304	if (pipe (sigpipe))
		305	return 0;
		306
		307	ev_method = EVMETHOD_NONE;
207	#if HAVE_EPOLL	308	#if HAVE_EPOLL
208	if (epoll_init (flags))	309	if (ev_method == EVMETHOD_NONE) epoll_init (flags);
209	return ev_method;
210	#endif	310	#endif
211	#if HAVE_SELECT	311	#if HAVE_SELECT
212	if (select_init (flags))	312	if (ev_method == EVMETHOD_NONE) select_init (flags);
213	return ev_method;
214	#endif	313	#endif
215		314
216	ev_method = EVMETHOD_NONE;	315	if (ev_method)
		316	{
		317	evw_init (&sigev, sigcb, 0);
		318	siginit ();
		319	}
		320
217	return ev_method;	321	return ev_method;
218	}	322	}
219		323
		324	/*****************************************************************************/
		325
220	void ev_prefork (void)	326	void ev_prefork (void)
221	{	327	{
222	}	328	}
223		329
224	void ev_postfork_parent (void)	330	void ev_postfork_parent (void)
…		…
226	}	332	}
227		333
228	void ev_postfork_child (void)	334	void ev_postfork_child (void)
229	{	335	{
230	#if HAVE_EPOLL	336	#if HAVE_EPOLL
		337	if (ev_method == EVMETHOD_EPOLL)
231	epoll_postfork_child ();	338	epoll_postfork_child ();
232	#endif	339	#endif
		340
		341	evio_stop (&sigev);
		342	close (sigpipe [0]);
		343	close (sigpipe [1]);
		344	pipe (sigpipe);
		345	siginit ();
		346	}
		347
		348	/*****************************************************************************/
		349
		350	static void
		351	fd_reify (void)
		352	{
		353	int i;
		354
		355	for (i = 0; i < fdchangecnt; ++i)
		356	{
		357	int fd = fdchanges [i];
		358	ANFD *anfd = anfds + fd;
		359	struct ev_io *w;
		360
		361	int wev = 0;
		362
		363	for (w = anfd->head; w; w = w->next)
		364	wev \|= w->events;
		365
		366	if (anfd->wev != wev)
		367	{
		368	method_modify (fd, anfd->wev, wev);
		369	anfd->wev = wev;
		370	}
		371	}
		372
		373	fdchangecnt = 0;
233	}	374	}
234		375
235	static void	376	static void
236	call_pending ()	377	call_pending ()
237	{	378	{
…		…
250		391
251	pendingcnt = 0;	392	pendingcnt = 0;
252	}	393	}
253		394
254	static void	395	static void
255	timer_reify (void)	396	timers_reify (struct ev_timer **timers, int timercnt, ev_tstamp now)
256	{	397	{
257	while (timercnt && timers [0]->at <= ev_now)	398	while (timercnt && timers [0]->at <= now)
258	{	399	{
259	struct ev_timer *w = timers [0];	400	struct ev_timer *w = timers [0];
260		401
261	/* first reschedule timer */	402	/* first reschedule or stop timer */
262	if (w->repeat)	403	if (w->repeat)
263	{	404	{
264	if (w->is_abs)	405	if (w->is_abs)
265	w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat;	406	w->at += floor ((now - w->at) / w->repeat + 1.) * w->repeat;
266	else	407	else
267	w->at = ev_now + w->repeat;	408	w->at = now + w->repeat;
268		409
269	downheap (0);	410	assert (w->at > now);
		411
		412	downheap (timers, timercnt, 0);
270	}	413	}
271	else	414	else
		415	{
272	evtimer_stop (w); /* nonrepeating: stop timer */	416	evtimer_stop (w); /* nonrepeating: stop timer */
		417	--timercnt; /* maybe pass by reference instead? */
		418	}
273		419
274	event ((struct ev_watcher *)w, EV_TIMEOUT);	420	event ((struct ev_watcher *)w, EV_TIMEOUT);
275	}	421	}
276	}	422	}
277		423
		424	static void
		425	time_update ()
		426	{
		427	int i;
		428	ev_now = ev_time ();
		429
		430	if (have_monotonic)
		431	{
		432	ev_tstamp odiff = diff;
		433
		434	/* detecting time jumps is much more difficult */
		435	for (i = 2; --i; ) /* loop a few times, before making important decisions */
		436	{
		437	now = get_clock ();
		438	diff = ev_now - now;
		439
		440	if (fabs (odiff - diff) < MIN_TIMEJUMP)
		441	return; /* all is well */
		442
		443	ev_now = ev_time ();
		444	}
		445
		446	/* time jump detected, reschedule atimers */
		447	for (i = 0; i < atimercnt; ++i)
		448	{
		449	struct ev_timer *w = atimers [i];
		450	w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat;
		451	}
		452	}
		453	else
		454	{
		455	if (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)
		456	/* time jump detected, adjust rtimers */
		457	for (i = 0; i < rtimercnt; ++i)
		458	rtimers [i]->at += ev_now - now;
		459
		460	now = ev_now;
		461	}
		462	}
		463
278	int ev_loop_done;	464	int ev_loop_done;
279		465
280	int ev_loop (int flags)	466	void ev_loop (int flags)
281	{	467	{
282	double block;	468	double block;
283	ev_loop_done = flags & EVLOOP_ONESHOT;	469	ev_loop_done = flags & EVLOOP_ONESHOT;
284		470
		471	if (checkcnt)
		472	{
		473	queue_events (checks, checkcnt, EV_CHECK);
		474	call_pending ();
		475	}
		476
285	do	477	do
286	{	478	{
287	/* update fd-related kernel structures */	479	/* update fd-related kernel structures */
288	method_reify (); fdchangecnt = 0;	480	fd_reify ();
289		481
290	/* calculate blocking time */	482	/* calculate blocking time */
291	ev_now = ev_time ();
292
293	if (flags & EVLOOP_NONBLOCK)	483	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
294	block = 0.;	484	block = 0.;
295	else if (!timercnt)
296	block = MAX_BLOCKTIME;
297	else	485	else
298	{	486	{
		487	block = MAX_BLOCKTIME;
		488
		489	if (rtimercnt)
		490	{
299	block = timers [0]->at - ev_now + method_fudge;	491	ev_tstamp to = rtimers [0]->at - get_clock () + method_fudge;
		492	if (block > to) block = to;
		493	}
		494
		495	if (atimercnt)
		496	{
		497	ev_tstamp to = atimers [0]->at - ev_time () + method_fudge;
		498	if (block > to) block = to;
		499	}
		500
300	if (block < 0.) block = 0.;	501	if (block < 0.) block = 0.;
301	else if (block > MAX_BLOCKTIME) block = MAX_BLOCKTIME;
302	}	502	}
303		503
304	method_poll (block);	504	method_poll (block);
305		505
		506	/* update ev_now, do magic */
		507	time_update ();
		508
306	/* put pending timers into pendign queue and reschedule them */	509	/* queue pending timers and reschedule them */
307	timer_reify ();	510	/* absolute timers first */
		511	timers_reify (atimers, atimercnt, ev_now);
		512	/* relative timers second */
		513	timers_reify (rtimers, rtimercnt, now);
308		514
309	ev_now = ev_time ();	515	/* queue idle watchers unless io or timers are pending */
		516	if (!pendingcnt)
		517	queue_events (idles, idlecnt, EV_IDLE);
		518
		519	/* queue check and possibly idle watchers */
		520	queue_events (checks, checkcnt, EV_CHECK);
		521
310	call_pending ();	522	call_pending ();
311	}	523	}
312	while (!ev_loop_done);	524	while (!ev_loop_done);
313	}	525	}
		526
		527	/*****************************************************************************/
314		528
315	static void	529	static void
316	wlist_add (struct ev_watcher_list *head, struct ev_watcher_list elem)	530	wlist_add (struct ev_watcher_list *head, struct ev_watcher_list elem)
317	{	531	{
318	elem->next = *head;	532	elem->next = *head;
…		…
348	pendings [w->pending - 1].w = 0;	562	pendings [w->pending - 1].w = 0;
349		563
350	w->active = 0;	564	w->active = 0;
351	/* nop */	565	/* nop */
352	}	566	}
		567
		568	/*****************************************************************************/
353		569
354	void	570	void
355	evio_start (struct ev_io *w)	571	evio_start (struct ev_io *w)
356	{	572	{
357	if (ev_is_active (w))	573	if (ev_is_active (w))
…		…
391	if (w->is_abs)	607	if (w->is_abs)
392	{	608	{
393	/* this formula differs from the one in timer_reify becuse we do not round up */	609	/* this formula differs from the one in timer_reify becuse we do not round up */
394	if (w->repeat)	610	if (w->repeat)
395	w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat;	611	w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat;
		612
		613	ev_start ((struct ev_watcher *)w, ++atimercnt);
		614	array_needsize (atimers, atimermax, atimercnt, );
		615	atimers [atimercnt - 1] = w;
		616	upheap (atimers, atimercnt - 1);
396	}	617	}
397	else	618	else
		619	{
398	w->at += ev_now;	620	w->at += now;
399		621
400	ev_start ((struct ev_watcher *)w, ++timercnt);	622	ev_start ((struct ev_watcher *)w, ++rtimercnt);
401	array_needsize (timers, timermax, timercnt, );	623	array_needsize (rtimers, rtimermax, rtimercnt, );
402	timers [timercnt - 1] = w;	624	rtimers [rtimercnt - 1] = w;
403	upheap (timercnt - 1);	625	upheap (rtimers, rtimercnt - 1);
		626	}
		627
404	}	628	}
405		629
406	void	630	void
407	evtimer_stop (struct ev_timer *w)	631	evtimer_stop (struct ev_timer *w)
408	{	632	{
409	if (!ev_is_active (w))	633	if (!ev_is_active (w))
410	return;	634	return;
411		635
		636	if (w->is_abs)
		637	{
412	if (w->active < timercnt--)	638	if (w->active < atimercnt--)
413	{	639	{
414	timers [w->active - 1] = timers [timercnt];	640	atimers [w->active - 1] = atimers [atimercnt];
415	downheap (w->active - 1);	641	downheap (atimers, atimercnt, w->active - 1);
		642	}
		643	}
		644	else
		645	{
		646	if (w->active < rtimercnt--)
		647	{
		648	rtimers [w->active - 1] = rtimers [rtimercnt];
		649	downheap (rtimers, rtimercnt, w->active - 1);
		650	}
416	}	651	}
417		652
418	ev_stop ((struct ev_watcher *)w);	653	ev_stop ((struct ev_watcher *)w);
419	}	654	}
420		655
…		…
424	if (ev_is_active (w))	659	if (ev_is_active (w))
425	return;	660	return;
426		661
427	ev_start ((struct ev_watcher *)w, 1);	662	ev_start ((struct ev_watcher *)w, 1);
428	array_needsize (signals, signalmax, w->signum, signals_init);	663	array_needsize (signals, signalmax, w->signum, signals_init);
429	wlist_add ((struct ev_watcher_list *)&signals [w->signum - 1], (struct ev_watcher_list )w);	664	wlist_add ((struct ev_watcher_list *)&signals [w->signum - 1].head, (struct ev_watcher_list )w);
		665
		666	if (!w->next)
		667	{
		668	struct sigaction sa;
		669	sa.sa_handler = sighandler;
		670	sigfillset (&sa.sa_mask);
		671	sa.sa_flags = 0;
		672	sigaction (w->signum, &sa, 0);
		673	}
430	}	674	}
431		675
432	void	676	void
433	evsignal_stop (struct ev_signal *w)	677	evsignal_stop (struct ev_signal *w)
434	{	678	{
435	if (!ev_is_active (w))	679	if (!ev_is_active (w))
436	return;	680	return;
437		681
438	wlist_del ((struct ev_watcher_list *)&signals [w->signum - 1], (struct ev_watcher_list )w);	682	wlist_del ((struct ev_watcher_list *)&signals [w->signum - 1].head, (struct ev_watcher_list )w);
439	ev_stop ((struct ev_watcher *)w);	683	ev_stop ((struct ev_watcher *)w);
		684
		685	if (!signals [w->signum - 1].head)
		686	signal (w->signum, SIG_DFL);
		687	}
		688
		689	void evidle_start (struct ev_idle *w)
		690	{
		691	if (ev_is_active (w))
		692	return;
		693
		694	ev_start ((struct ev_watcher *)w, ++idlecnt);
		695	array_needsize (idles, idlemax, idlecnt, );
		696	idles [idlecnt - 1] = w;
		697	}
		698
		699	void evidle_stop (struct ev_idle *w)
		700	{
		701	idles [w->active - 1] = idles [--idlecnt];
		702	ev_stop ((struct ev_watcher *)w);
		703	}
		704
		705	void evcheck_start (struct ev_check *w)
		706	{
		707	if (ev_is_active (w))
		708	return;
		709
		710	ev_start ((struct ev_watcher *)w, ++checkcnt);
		711	array_needsize (checks, checkmax, checkcnt, );
		712	checks [checkcnt - 1] = w;
		713	}
		714
		715	void evcheck_stop (struct ev_check *w)
		716	{
		717	checks [w->active - 1] = checks [--checkcnt];
		718	ev_stop ((struct ev_watcher *)w);
440	}	719	}
441		720
442	/*****************************************************************************/	721	/*****************************************************************************/
443	#if 1	722	#if 1
444		723
…		…
449	}	728	}
450		729
451	static void	730	static void
452	ocb (struct ev_timer *w, int revents)	731	ocb (struct ev_timer *w, int revents)
453	{	732	{
454	fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);	733	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
		734	evtimer_stop (w);
		735	evtimer_start (w);
		736	}
		737
		738	static void
		739	scb (struct ev_signal *w, int revents)
		740	{
		741	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
		742	}
		743
		744	static void
		745	gcb (struct ev_signal *w, int revents)
		746	{
		747	fprintf (stderr, "generic %x\n", revents);
455	}	748	}
456		749
457	int main (void)	750	int main (void)
458	{	751	{
459	struct ev_io sin;	752	struct ev_io sin;
…		…
462		755
463	evw_init (&sin, sin_cb, 55);	756	evw_init (&sin, sin_cb, 55);
464	evio_set (&sin, 0, EV_READ);	757	evio_set (&sin, 0, EV_READ);
465	evio_start (&sin);	758	evio_start (&sin);
466		759
467	struct ev_timer t[1000];	760	struct ev_timer t[10000];
468		761
		762	#if 0
469	int i;	763	int i;
470	for (i = 0; i < 1000; ++i)	764	for (i = 0; i < 10000; ++i)
471	{	765	{
472	struct ev_timer *w = t + i;	766	struct ev_timer *w = t + i;
473	evw_init (w, ocb, i);	767	evw_init (w, ocb, i);
474	evtimer_set_rel (w, drand48 (), 0);	768	evtimer_set_abs (w, drand48 (), 0.99775533);
475	evtimer_start (w);	769	evtimer_start (w);
476	if (drand48 () < 0.5)	770	if (drand48 () < 0.5)
477	evtimer_stop (w);	771	evtimer_stop (w);
478	}	772	}
		773	#endif
		774
		775	struct ev_timer t1;
		776	evw_init (&t1, ocb, 0);
		777	evtimer_set_abs (&t1, 5, 10);
		778	evtimer_start (&t1);
		779
		780	struct ev_signal sig;
		781	evw_init (&sig, scb, 65535);
		782	evsignal_set (&sig, SIGQUIT);
		783	evsignal_start (&sig);
		784
		785	struct ev_check cw;
		786	evw_init (&cw, gcb, 0);
		787	evcheck_start (&cw);
		788
		789	struct ev_idle iw;
		790	evw_init (&iw, gcb, 0);
		791	evidle_start (&iw);
479		792
480	ev_loop (0);	793	ev_loop (0);
481		794
482	return 0;	795	return 0;
483	}	796	}

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Comparing libev/ev.c (file contents): Revision 1.3 by root, Tue Oct 30 21:45:00 2007 UTC vs. Revision 1.9 by root, Wed Oct 31 07:24:17 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.3 by root, Tue Oct 30 21:45:00 2007 UTC vs.
Revision 1.9 by root, Wed Oct 31 07:24:17 2007 UTC