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

Comparing libev/ev.c (file contents):
Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs.
Revision 1.70 by root, Tue Nov 6 00:52:32 2007 UTC

…		…
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	#ifndef EV_STANDALONE	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>	59	#include <unistd.h>
…		…
58		80
59	#ifndef EV_USE_SELECT	81	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	82	# define EV_USE_SELECT 1
61	#endif	83	#endif
62		84
63	#ifndef EV_USEV_POLL	85	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	87	#endif
66		88
67	#ifndef EV_USE_EPOLL	89	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	90	# define EV_USE_EPOLL 0
69	#endif	91	#endif
70		92
71	#ifndef EV_USE_KQUEUE	93	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	94	# define EV_USE_KQUEUE 0
		95	#endif
		96
		97	#ifndef EV_USE_WIN32
		98	# ifdef WIN32
		99	# define EV_USE_WIN32 1
		100	# else
		101	# define EV_USE_WIN32 0
		102	# endif
73	#endif	103	#endif
74		104
75	#ifndef EV_USE_REALTIME	105	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	106	# define EV_USE_REALTIME 1
77	#endif	107	#endif
…		…
113		143
114	typedef struct ev_watcher *W;	144	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	145	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	146	typedef struct ev_watcher_time *WT;
117		147
118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */	148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119	static ev_tstamp rt_now;
120	static int method;
121		149
122	static int have_monotonic; /* runtime */	150	#if WIN32
123		151	/* note: the comment below could not be substantiated, but what would I care */
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	152	/* MSDN says this is required to handle SIGFPE */
125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);	153	volatile double SIGFPE_REQ = 0.0f;
126	static void (*method_poll)(EV_P_ ev_tstamp timeout);
127
128	static int activecnt; /* number of active events */
129
130	#if EV_USE_SELECT
131	static unsigned char vec_ri, vec_ro, vec_wi, vec_wo;
132	static int vec_max;
133	#endif	154	#endif
134		155
135	#if EV_USEV_POLL	156	/*****************************************************************************/
136	static struct pollfd *polls;
137	static int pollmax, pollcnt;
138	static int pollidxs; / maps fds into structure indices */
139	static int pollidxmax;
140	#endif
141		157
142	#if EV_USE_EPOLL	158	static void (syserr_cb)(const char msg);
143	static int epoll_fd = -1;
144		159
145	static struct epoll_event *events;	160	void ev_set_syserr_cb (void (cb)(const char msg))
146	static int eventmax;	161	{
147	#endif	162	syserr_cb = cb;
		163	}
148		164
149	#if EV_USE_KQUEUE	165	static void
150	static int kqueue_fd;	166	syserr (const char *msg)
151	static struct kevent *kqueue_changes;	167	{
152	static int kqueue_changemax, kqueue_changecnt;	168	if (!msg)
153	static struct kevent *kqueue_events;	169	msg = "(libev) system error";
154	static int kqueue_eventmax;	170
		171	if (syserr_cb)
		172	syserr_cb (msg);
		173	else
		174	{
		175	perror (msg);
		176	abort ();
		177	}
		178	}
		179
		180	static void (alloc)(void *ptr, long size);
		181
		182	void ev_set_allocator (void (cb)(void *ptr, long size))
		183	{
		184	alloc = cb;
		185	}
		186
		187	static void *
		188	ev_realloc (void *ptr, long size)
		189	{
		190	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		191
		192	if (!ptr && size)
		193	{
		194	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		195	abort ();
		196	}
		197
		198	return ptr;
		199	}
		200
		201	#define ev_malloc(size) ev_realloc (0, (size))
		202	#define ev_free(ptr) ev_realloc ((ptr), 0)
		203
		204	/*****************************************************************************/
		205
		206	typedef struct
		207	{
		208	WL head;
		209	unsigned char events;
		210	unsigned char reify;
		211	} ANFD;
		212
		213	typedef struct
		214	{
		215	W w;
		216	int events;
		217	} ANPENDING;
		218
		219	#if EV_MULTIPLICITY
		220
		221	struct ev_loop
		222	{
		223	# define VAR(name,decl) decl;
		224	# include "ev_vars.h"
		225	};
		226	# undef VAR
		227	# include "ev_wrap.h"
		228
		229	#else
		230
		231	# define VAR(name,decl) static decl;
		232	# include "ev_vars.h"
		233	# undef VAR
		234
155	#endif	235	#endif
156		236
157	/*****************************************************************************/	237	/*****************************************************************************/
158		238
159	inline ev_tstamp	239	inline ev_tstamp
…		…
191	return rt_now;	271	return rt_now;
192	}	272	}
193		273
194	#define array_roundsize(base,n) ((n) \| 4 & ~3)	274	#define array_roundsize(base,n) ((n) \| 4 & ~3)
195		275
196	#define array_needsize(base,cur,cnt,init) \	276	#define array_needsize(base,cur,cnt,init) \
197	if (expect_false ((cnt) > cur)) \	277	if (expect_false ((cnt) > cur)) \
198	{ \	278	{ \
199	int newcnt = cur; \	279	int newcnt = cur; \
200	do \	280	do \
201	{ \	281	{ \
202	newcnt = array_roundsize (base, newcnt << 1); \	282	newcnt = array_roundsize (base, newcnt << 1); \
203	} \	283	} \
204	while ((cnt) > newcnt); \	284	while ((cnt) > newcnt); \
205	\	285	\
206	base = realloc (base, sizeof (base) (newcnt)); \	286	base = ev_realloc (base, sizeof (base) (newcnt)); \
207	init (base + cur, newcnt - cur); \	287	init (base + cur, newcnt - cur); \
208	cur = newcnt; \	288	cur = newcnt; \
209	}	289	}
		290
		291	#define array_slim(stem) \
		292	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		293	{ \
		294	stem ## max = array_roundsize (stem ## cnt >> 1); \
		295	base = ev_realloc (base, sizeof (base) (stem ## max)); \
		296	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		297	}
		298
		299	#define array_free(stem, idx) \
		300	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
210		301
211	/*****************************************************************************/	302	/*****************************************************************************/
212
213	typedef struct
214	{
215	struct ev_watcher_list *head;
216	unsigned char events;
217	unsigned char reify;
218	} ANFD;
219
220	static ANFD *anfds;
221	static int anfdmax;
222		303
223	static void	304	static void
224	anfds_init (ANFD *base, int count)	305	anfds_init (ANFD *base, int count)
225	{	306	{
226	while (count--)	307	while (count--)
…		…
230	base->reify = 0;	311	base->reify = 0;
231		312
232	++base;	313	++base;
233	}	314	}
234	}	315	}
235
236	typedef struct
237	{
238	W w;
239	int events;
240	} ANPENDING;
241
242	static ANPENDING *pendings [NUMPRI];
243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
244		316
245	static void	317	static void
246	event (EV_P_ W w, int events)	318	event (EV_P_ W w, int events)
247	{	319	{
248	if (w->pending)	320	if (w->pending)
…		…
281	}	353	}
282	}	354	}
283		355
284	/*****************************************************************************/	356	/*****************************************************************************/
285		357
286	static int *fdchanges;
287	static int fdchangemax, fdchangecnt;
288
289	static void	358	static void
290	fd_reify (EV_P)	359	fd_reify (EV_P)
291	{	360	{
292	int i;	361	int i;
293		362
…		…
302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	371	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
303	events \|= w->events;	372	events \|= w->events;
304		373
305	anfd->reify = 0;	374	anfd->reify = 0;
306		375
307	if (anfd->events != events)
308	{
309	method_modify (EV_A_ fd, anfd->events, events);	376	method_modify (EV_A_ fd, anfd->events, events);
310	anfd->events = events;	377	anfd->events = events;
311	}
312	}	378	}
313		379
314	fdchangecnt = 0;	380	fdchangecnt = 0;
315	}	381	}
316		382
317	static void	383	static void
318	fd_change (EV_P_ int fd)	384	fd_change (EV_P_ int fd)
319	{	385	{
320	if (anfds [fd].reify \|\| fdchangecnt < 0)	386	if (anfds [fd].reify)
321	return;	387	return;
322		388
323	anfds [fd].reify = 1;	389	anfds [fd].reify = 1;
324		390
325	++fdchangecnt;	391	++fdchangecnt;
…		…
353		419
354	/* called on ENOMEM in select/poll to kill some fds and retry */	420	/* called on ENOMEM in select/poll to kill some fds and retry */
355	static void	421	static void
356	fd_enomem (EV_P)	422	fd_enomem (EV_P)
357	{	423	{
358	int fd = anfdmax;	424	int fd;
359		425
360	while (fd--)	426	for (fd = anfdmax; fd--; )
361	if (anfds [fd].events)	427	if (anfds [fd].events)
362	{	428	{
363	close (fd);
364	fd_kill (EV_A_ fd);	429	fd_kill (EV_A_ fd);
365	return;	430	return;
366	}	431	}
367	}	432	}
368		433
		434	/* usually called after fork if method needs to re-arm all fds from scratch */
		435	static void
		436	fd_rearm_all (EV_P)
		437	{
		438	int fd;
		439
		440	/* this should be highly optimised to not do anything but set a flag */
		441	for (fd = 0; fd < anfdmax; ++fd)
		442	if (anfds [fd].events)
		443	{
		444	anfds [fd].events = 0;
		445	fd_change (EV_A_ fd);
		446	}
		447	}
		448
369	/*****************************************************************************/	449	/*****************************************************************************/
370		450
371	static struct ev_timer **timers;
372	static int timermax, timercnt;
373
374	static struct ev_periodic **periodics;
375	static int periodicmax, periodiccnt;
376
377	static void	451	static void
378	upheap (WT *timers, int k)	452	upheap (WT *heap, int k)
379	{	453	{
380	WT w = timers [k];	454	WT w = heap [k];
381		455
382	while (k && timers [k >> 1]->at > w->at)	456	while (k && heap [k >> 1]->at > w->at)
383	{	457	{
384	timers [k] = timers [k >> 1];	458	heap [k] = heap [k >> 1];
385	timers [k]->active = k + 1;	459	((W)heap [k])->active = k + 1;
386	k >>= 1;	460	k >>= 1;
387	}	461	}
388		462
389	timers [k] = w;	463	heap [k] = w;
390	timers [k]->active = k + 1;	464	((W)heap [k])->active = k + 1;
391		465
392	}	466	}
393		467
394	static void	468	static void
395	downheap (WT *timers, int N, int k)	469	downheap (WT *heap, int N, int k)
396	{	470	{
397	WT w = timers [k];	471	WT w = heap [k];
398		472
399	while (k < (N >> 1))	473	while (k < (N >> 1))
400	{	474	{
401	int j = k << 1;	475	int j = k << 1;
402		476
403	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	477	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
404	++j;	478	++j;
405		479
406	if (w->at <= timers [j]->at)	480	if (w->at <= heap [j]->at)
407	break;	481	break;
408		482
409	timers [k] = timers [j];	483	heap [k] = heap [j];
410	timers [k]->active = k + 1;	484	((W)heap [k])->active = k + 1;
411	k = j;	485	k = j;
412	}	486	}
413		487
414	timers [k] = w;	488	heap [k] = w;
415	timers [k]->active = k + 1;	489	((W)heap [k])->active = k + 1;
416	}	490	}
417		491
418	/*****************************************************************************/	492	/*****************************************************************************/
419		493
420	typedef struct	494	typedef struct
421	{	495	{
422	struct ev_watcher_list *head;	496	WL head;
423	sig_atomic_t volatile gotsig;	497	sig_atomic_t volatile gotsig;
424	} ANSIG;	498	} ANSIG;
425		499
426	static ANSIG *signals;	500	static ANSIG *signals;
427	static int signalmax;	501	static int signalmax;
…		…
443	}	517	}
444		518
445	static void	519	static void
446	sighandler (int signum)	520	sighandler (int signum)
447	{	521	{
		522	#if WIN32
		523	signal (signum, sighandler);
		524	#endif
		525
448	signals [signum - 1].gotsig = 1;	526	signals [signum - 1].gotsig = 1;
449		527
450	if (!gotsig)	528	if (!gotsig)
451	{	529	{
452	int old_errno = errno;	530	int old_errno = errno;
…		…
457	}	535	}
458		536
459	static void	537	static void
460	sigcb (EV_P_ struct ev_io *iow, int revents)	538	sigcb (EV_P_ struct ev_io *iow, int revents)
461	{	539	{
462	struct ev_watcher_list *w;	540	WL w;
463	int signum;	541	int signum;
464		542
465	read (sigpipe [0], &revents, 1);	543	read (sigpipe [0], &revents, 1);
466	gotsig = 0;	544	gotsig = 0;
467		545
…		…
486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	564	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	565	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
488	#endif	566	#endif
489		567
490	ev_io_set (&sigev, sigpipe [0], EV_READ);	568	ev_io_set (&sigev, sigpipe [0], EV_READ);
491	ev_io_start (&sigev);	569	ev_io_start (EV_A_ &sigev);
		570	ev_unref (EV_A); /* child watcher should not keep loop alive */
492	}	571	}
493		572
494	/*****************************************************************************/	573	/*****************************************************************************/
495		574
496	static struct ev_idle **idles;	575	#ifndef WIN32
497	static int idlemax, idlecnt;
498
499	static struct ev_prepare **prepares;
500	static int preparemax, preparecnt;
501
502	static struct ev_check **checks;
503	static int checkmax, checkcnt;
504
505	/*****************************************************************************/
506		576
507	static struct ev_child *childs [PID_HASHSIZE];	577	static struct ev_child *childs [PID_HASHSIZE];
508	static struct ev_signal childev;	578	static struct ev_signal childev;
509
510	#ifndef WIN32
511		579
512	#ifndef WCONTINUED	580	#ifndef WCONTINUED
513	# define WCONTINUED 0	581	# define WCONTINUED 0
514	#endif	582	#endif
515		583
…		…
519	struct ev_child *w;	587	struct ev_child *w;
520		588
521	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	589	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
522	if (w->pid == pid \|\| !w->pid)	590	if (w->pid == pid \|\| !w->pid)
523	{	591	{
524	w->priority = sw->priority; /* need to do it now */	592	ev_priority (w) = ev_priority (sw); /* need to do it now */
525	w->rpid = pid;	593	w->rpid = pid;
526	w->rstatus = status;	594	w->rstatus = status;
527	event (EV_A_ (W)w, EV_CHILD);	595	event (EV_A_ (W)w, EV_CHILD);
528	}	596	}
529	}	597	}
530		598
531	static void	599	static void
…		…
551	# include "ev_kqueue.c"	619	# include "ev_kqueue.c"
552	#endif	620	#endif
553	#if EV_USE_EPOLL	621	#if EV_USE_EPOLL
554	# include "ev_epoll.c"	622	# include "ev_epoll.c"
555	#endif	623	#endif
556	#if EV_USEV_POLL	624	#if EV_USE_POLL
557	# include "ev_poll.c"	625	# include "ev_poll.c"
558	#endif	626	#endif
559	#if EV_USE_SELECT	627	#if EV_USE_SELECT
560	# include "ev_select.c"	628	# include "ev_select.c"
561	#endif	629	#endif
…		…
588	ev_method (EV_P)	656	ev_method (EV_P)
589	{	657	{
590	return method;	658	return method;
591	}	659	}
592		660
593	int	661	static void
594	ev_init (EV_P_ int methods)	662	loop_init (EV_P_ int methods)
595	{	663	{
596	if (!method)	664	if (!method)
597	{	665	{
598	#if EV_USE_MONOTONIC	666	#if EV_USE_MONOTONIC
599	{	667	{
…		…
604	#endif	672	#endif
605		673
606	rt_now = ev_time ();	674	rt_now = ev_time ();
607	mn_now = get_clock ();	675	mn_now = get_clock ();
608	now_floor = mn_now;	676	now_floor = mn_now;
609	diff = rt_now - mn_now;	677	rtmn_diff = rt_now - mn_now;
610
611	if (pipe (sigpipe))
612	return 0;
613		678
614	if (methods == EVMETHOD_AUTO)	679	if (methods == EVMETHOD_AUTO)
615	if (!enable_secure () && getenv ("LIBmethodS"))	680	if (!enable_secure () && getenv ("LIBEV_METHODS"))
616	methods = atoi (getenv ("LIBmethodS"));	681	methods = atoi (getenv ("LIBEV_METHODS"));
617	else	682	else
618	methods = EVMETHOD_ANY;	683	methods = EVMETHOD_ANY;
619		684
620	method = 0;	685	method = 0;
		686	#if EV_USE_WIN32
		687	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		688	#endif
621	#if EV_USE_KQUEUE	689	#if EV_USE_KQUEUE
622	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	690	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
623	#endif	691	#endif
624	#if EV_USE_EPOLL	692	#if EV_USE_EPOLL
625	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	693	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
626	#endif	694	#endif
627	#if EV_USEV_POLL	695	#if EV_USE_POLL
628	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	696	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
629	#endif	697	#endif
630	#if EV_USE_SELECT	698	#if EV_USE_SELECT
631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	699	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
632	#endif	700	#endif
633		701
		702	ev_watcher_init (&sigev, sigcb);
		703	ev_set_priority (&sigev, EV_MAXPRI);
		704	}
		705	}
		706
		707	void
		708	loop_destroy (EV_P)
		709	{
		710	int i;
		711
		712	#if EV_USE_WIN32
		713	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		714	#endif
		715	#if EV_USE_KQUEUE
		716	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		717	#endif
		718	#if EV_USE_EPOLL
		719	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		720	#endif
		721	#if EV_USE_POLL
		722	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		723	#endif
		724	#if EV_USE_SELECT
		725	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		726	#endif
		727
		728	for (i = NUMPRI; i--; )
		729	array_free (pending, [i]);
		730
		731	array_free (fdchange, );
		732	array_free (timer, );
		733	array_free (periodic, );
		734	array_free (idle, );
		735	array_free (prepare, );
		736	array_free (check, );
		737
		738	method = 0;
		739	}
		740
		741	static void
		742	loop_fork (EV_P)
		743	{
		744	#if EV_USE_EPOLL
		745	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		746	#endif
		747	#if EV_USE_KQUEUE
		748	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		749	#endif
		750
		751	if (ev_is_active (&sigev))
		752	{
		753	/* default loop */
		754
		755	ev_ref (EV_A);
		756	ev_io_stop (EV_A_ &sigev);
		757	close (sigpipe [0]);
		758	close (sigpipe [1]);
		759
		760	while (pipe (sigpipe))
		761	syserr ("(libev) error creating pipe");
		762
		763	siginit (EV_A);
		764	}
		765
		766	postfork = 0;
		767	}
		768
		769	#if EV_MULTIPLICITY
		770	struct ev_loop *
		771	ev_loop_new (int methods)
		772	{
		773	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		774
		775	memset (loop, 0, sizeof (struct ev_loop));
		776
		777	loop_init (EV_A_ methods);
		778
		779	if (ev_method (EV_A))
		780	return loop;
		781
		782	return 0;
		783	}
		784
		785	void
		786	ev_loop_destroy (EV_P)
		787	{
		788	loop_destroy (EV_A);
		789	ev_free (loop);
		790	}
		791
		792	void
		793	ev_loop_fork (EV_P)
		794	{
		795	postfork = 1;
		796	}
		797
		798	#endif
		799
		800	#if EV_MULTIPLICITY
		801	struct ev_loop default_loop_struct;
		802	static struct ev_loop *default_loop;
		803
		804	struct ev_loop *
		805	#else
		806	static int default_loop;
		807
		808	int
		809	#endif
		810	ev_default_loop (int methods)
		811	{
		812	if (sigpipe [0] == sigpipe [1])
		813	if (pipe (sigpipe))
		814	return 0;
		815
		816	if (!default_loop)
		817	{
		818	#if EV_MULTIPLICITY
		819	struct ev_loop *loop = default_loop = &default_loop_struct;
		820	#else
		821	default_loop = 1;
		822	#endif
		823
		824	loop_init (EV_A_ methods);
		825
634	if (method)	826	if (ev_method (EV_A))
635	{	827	{
636	ev_watcher_init (&sigev, sigcb);
637	ev_set_priority (&sigev, EV_MAXPRI);
638	siginit (EV_A);	828	siginit (EV_A);
639		829
640	#ifndef WIN32	830	#ifndef WIN32
641	ev_signal_init (&childev, childcb, SIGCHLD);	831	ev_signal_init (&childev, childcb, SIGCHLD);
642	ev_set_priority (&childev, EV_MAXPRI);	832	ev_set_priority (&childev, EV_MAXPRI);
643	ev_signal_start (EV_A_ &childev);	833	ev_signal_start (EV_A_ &childev);
		834	ev_unref (EV_A); /* child watcher should not keep loop alive */
644	#endif	835	#endif
645	}	836	}
		837	else
		838	default_loop = 0;
646	}	839	}
647		840
648	return method;	841	return default_loop;
649	}	842	}
650		843
651	/*****************************************************************************/
652
653	void	844	void
654	ev_fork_prepare (void)	845	ev_default_destroy (void)
655	{	846	{
656	/* nop */	847	#if EV_MULTIPLICITY
657	}	848	struct ev_loop *loop = default_loop;
658
659	void
660	ev_fork_parent (void)
661	{
662	/* nop */
663	}
664
665	void
666	ev_fork_child (void)
667	{
668	#if EV_USE_EPOLL
669	if (method == EVMETHOD_EPOLL)
670	epoll_postfork_child ();
671	#endif	849	#endif
672		850
		851	ev_ref (EV_A); /* child watcher */
		852	ev_signal_stop (EV_A_ &childev);
		853
		854	ev_ref (EV_A); /* signal watcher */
673	ev_io_stop (&sigev);	855	ev_io_stop (EV_A_ &sigev);
674	close (sigpipe [0]);	856
675	close (sigpipe [1]);	857	close (sigpipe [0]); sigpipe [0] = 0;
676	pipe (sigpipe);	858	close (sigpipe [1]); sigpipe [1] = 0;
677	siginit ();	859
		860	loop_destroy (EV_A);
		861	}
		862
		863	void
		864	ev_default_fork (void)
		865	{
		866	#if EV_MULTIPLICITY
		867	struct ev_loop *loop = default_loop;
		868	#endif
		869
		870	if (method)
		871	postfork = 1;
678	}	872	}
679		873
680	/*****************************************************************************/	874	/*****************************************************************************/
681		875
682	static void	876	static void
…		…
698	}	892	}
699		893
700	static void	894	static void
701	timers_reify (EV_P)	895	timers_reify (EV_P)
702	{	896	{
703	while (timercnt && timers [0]->at <= mn_now)	897	while (timercnt && ((WT)timers [0])->at <= mn_now)
704	{	898	{
705	struct ev_timer *w = timers [0];	899	struct ev_timer *w = timers [0];
		900
		901	assert (("inactive timer on timer heap detected", ev_is_active (w)));
706		902
707	/* first reschedule or stop timer */	903	/* first reschedule or stop timer */
708	if (w->repeat)	904	if (w->repeat)
709	{	905	{
710	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	906	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
711	w->at = mn_now + w->repeat;	907	((WT)w)->at = mn_now + w->repeat;
712	downheap ((WT *)timers, timercnt, 0);	908	downheap ((WT *)timers, timercnt, 0);
713	}	909	}
714	else	910	else
715	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	911	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
716		912
717	event ((W)w, EV_TIMEOUT);	913	event (EV_A_ (W)w, EV_TIMEOUT);
718	}	914	}
719	}	915	}
720		916
721	static void	917	static void
722	periodics_reify (EV_P)	918	periodics_reify (EV_P)
723	{	919	{
724	while (periodiccnt && periodics [0]->at <= rt_now)	920	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
725	{	921	{
726	struct ev_periodic *w = periodics [0];	922	struct ev_periodic *w = periodics [0];
		923
		924	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
727		925
728	/* first reschedule or stop timer */	926	/* first reschedule or stop timer */
729	if (w->interval)	927	if (w->interval)
730	{	928	{
731	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	929	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
732	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	930	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
733	downheap ((WT *)periodics, periodiccnt, 0);	931	downheap ((WT *)periodics, periodiccnt, 0);
734	}	932	}
735	else	933	else
736	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	934	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
737		935
738	event (EV_A_ (W)w, EV_PERIODIC);	936	event (EV_A_ (W)w, EV_PERIODIC);
739	}	937	}
740	}	938	}
741		939
742	static void	940	static void
743	periodics_reschedule (EV_P_ ev_tstamp diff)	941	periodics_reschedule (EV_P)
744	{	942	{
745	int i;	943	int i;
746		944
747	/* adjust periodics after time jump */	945	/* adjust periodics after time jump */
748	for (i = 0; i < periodiccnt; ++i)	946	for (i = 0; i < periodiccnt; ++i)
749	{	947	{
750	struct ev_periodic *w = periodics [i];	948	struct ev_periodic *w = periodics [i];
751		949
752	if (w->interval)	950	if (w->interval)
753	{	951	{
754	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	952	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
755		953
756	if (fabs (diff) >= 1e-4)	954	if (fabs (diff) >= 1e-4)
757	{	955	{
758	ev_periodic_stop (EV_A_ w);	956	ev_periodic_stop (EV_A_ w);
759	ev_periodic_start (EV_A_ w);	957	ev_periodic_start (EV_A_ w);
…		…
769	{	967	{
770	mn_now = get_clock ();	968	mn_now = get_clock ();
771		969
772	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	970	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
773	{	971	{
774	rt_now = mn_now + diff;	972	rt_now = rtmn_diff + mn_now;
775	return 0;	973	return 0;
776	}	974	}
777	else	975	else
778	{	976	{
779	now_floor = mn_now;	977	now_floor = mn_now;
…		…
790	#if EV_USE_MONOTONIC	988	#if EV_USE_MONOTONIC
791	if (expect_true (have_monotonic))	989	if (expect_true (have_monotonic))
792	{	990	{
793	if (time_update_monotonic (EV_A))	991	if (time_update_monotonic (EV_A))
794	{	992	{
795	ev_tstamp odiff = diff;	993	ev_tstamp odiff = rtmn_diff;
796		994
797	for (i = 4; --i; ) /* loop a few times, before making important decisions */	995	for (i = 4; --i; ) /* loop a few times, before making important decisions */
798	{	996	{
799	diff = rt_now - mn_now;	997	rtmn_diff = rt_now - mn_now;
800		998
801	if (fabs (odiff - diff) < MIN_TIMEJUMP)	999	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
802	return; /* all is well */	1000	return; /* all is well */
803		1001
804	rt_now = ev_time ();	1002	rt_now = ev_time ();
805	mn_now = get_clock ();	1003	mn_now = get_clock ();
806	now_floor = mn_now;	1004	now_floor = mn_now;
807	}	1005	}
808		1006
809	periodics_reschedule (EV_A_ diff - odiff);	1007	periodics_reschedule (EV_A);
810	/* no timer adjustment, as the monotonic clock doesn't jump */	1008	/* no timer adjustment, as the monotonic clock doesn't jump */
		1009	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
811	}	1010	}
812	}	1011	}
813	else	1012	else
814	#endif	1013	#endif
815	{	1014	{
816	rt_now = ev_time ();	1015	rt_now = ev_time ();
817		1016
818	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1017	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
819	{	1018	{
820	periodics_reschedule (EV_A_ rt_now - mn_now);	1019	periodics_reschedule (EV_A);
821		1020
822	/* adjust timers. this is easy, as the offset is the same for all */	1021	/* adjust timers. this is easy, as the offset is the same for all */
823	for (i = 0; i < timercnt; ++i)	1022	for (i = 0; i < timercnt; ++i)
824	timers [i]->at += diff;	1023	((WT)timers [i])->at += rt_now - mn_now;
825	}	1024	}
826		1025
827	mn_now = rt_now;	1026	mn_now = rt_now;
828	}	1027	}
829	}	1028	}
…		…
855	{	1054	{
856	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1055	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
857	call_pending (EV_A);	1056	call_pending (EV_A);
858	}	1057	}
859		1058
		1059	/* we might have forked, so reify kernel state if necessary */
		1060	if (expect_false (postfork))
		1061	loop_fork (EV_A);
		1062
860	/* update fd-related kernel structures */	1063	/* update fd-related kernel structures */
861	fd_reify (EV_A);	1064	fd_reify (EV_A);
862		1065
863	/* calculate blocking time */	1066	/* calculate blocking time */
864		1067
…		…
880	{	1083	{
881	block = MAX_BLOCKTIME;	1084	block = MAX_BLOCKTIME;
882		1085
883	if (timercnt)	1086	if (timercnt)
884	{	1087	{
885	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1088	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
886	if (block > to) block = to;	1089	if (block > to) block = to;
887	}	1090	}
888		1091
889	if (periodiccnt)	1092	if (periodiccnt)
890	{	1093	{
891	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1094	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
892	if (block > to) block = to;	1095	if (block > to) block = to;
893	}	1096	}
894		1097
895	if (block < 0.) block = 0.;	1098	if (block < 0.) block = 0.;
896	}	1099	}
…		…
911	/* queue check watchers, to be executed first */	1114	/* queue check watchers, to be executed first */
912	if (checkcnt)	1115	if (checkcnt)
913	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1116	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
914		1117
915	call_pending (EV_A);	1118	call_pending (EV_A);
916	printf ("activecnt %d\n", activecnt);//D
917	}	1119	}
918	while (activecnt && !loop_done);	1120	while (activecnt && !loop_done);
919		1121
920	if (loop_done != 2)	1122	if (loop_done != 2)
921	loop_done = 0;	1123	loop_done = 0;
…		…
1014	ev_timer_start (EV_P_ struct ev_timer *w)	1216	ev_timer_start (EV_P_ struct ev_timer *w)
1015	{	1217	{
1016	if (ev_is_active (w))	1218	if (ev_is_active (w))
1017	return;	1219	return;
1018		1220
1019	w->at += mn_now;	1221	((WT)w)->at += mn_now;
1020		1222
1021	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1223	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1022		1224
1023	ev_start (EV_A_ (W)w, ++timercnt);	1225	ev_start (EV_A_ (W)w, ++timercnt);
1024	array_needsize (timers, timermax, timercnt, );	1226	array_needsize (timers, timermax, timercnt, );
1025	timers [timercnt - 1] = w;	1227	timers [timercnt - 1] = w;
1026	upheap ((WT *)timers, timercnt - 1);	1228	upheap ((WT *)timers, timercnt - 1);
		1229
		1230	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1027	}	1231	}
1028		1232
1029	void	1233	void
1030	ev_timer_stop (EV_P_ struct ev_timer *w)	1234	ev_timer_stop (EV_P_ struct ev_timer *w)
1031	{	1235	{
1032	ev_clear_pending (EV_A_ (W)w);	1236	ev_clear_pending (EV_A_ (W)w);
1033	if (!ev_is_active (w))	1237	if (!ev_is_active (w))
1034	return;	1238	return;
1035		1239
		1240	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1241
1036	if (w->active < timercnt--)	1242	if (((W)w)->active < timercnt--)
1037	{	1243	{
1038	timers [w->active - 1] = timers [timercnt];	1244	timers [((W)w)->active - 1] = timers [timercnt];
1039	downheap ((WT *)timers, timercnt, w->active - 1);	1245	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1040	}	1246	}
1041		1247
1042	w->at = w->repeat;	1248	((WT)w)->at = w->repeat;
1043		1249
1044	ev_stop (EV_A_ (W)w);	1250	ev_stop (EV_A_ (W)w);
1045	}	1251	}
1046		1252
1047	void	1253	void
…		…
1049	{	1255	{
1050	if (ev_is_active (w))	1256	if (ev_is_active (w))
1051	{	1257	{
1052	if (w->repeat)	1258	if (w->repeat)
1053	{	1259	{
1054	w->at = mn_now + w->repeat;	1260	((WT)w)->at = mn_now + w->repeat;
1055	downheap ((WT *)timers, timercnt, w->active - 1);	1261	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1056	}	1262	}
1057	else	1263	else
1058	ev_timer_stop (EV_A_ w);	1264	ev_timer_stop (EV_A_ w);
1059	}	1265	}
1060	else if (w->repeat)	1266	else if (w->repeat)
…		…
1069		1275
1070	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1276	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1071		1277
1072	/* this formula differs from the one in periodic_reify because we do not always round up */	1278	/* this formula differs from the one in periodic_reify because we do not always round up */
1073	if (w->interval)	1279	if (w->interval)
1074	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1280	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1075		1281
1076	ev_start (EV_A_ (W)w, ++periodiccnt);	1282	ev_start (EV_A_ (W)w, ++periodiccnt);
1077	array_needsize (periodics, periodicmax, periodiccnt, );	1283	array_needsize (periodics, periodicmax, periodiccnt, );
1078	periodics [periodiccnt - 1] = w;	1284	periodics [periodiccnt - 1] = w;
1079	upheap ((WT *)periodics, periodiccnt - 1);	1285	upheap ((WT *)periodics, periodiccnt - 1);
		1286
		1287	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1080	}	1288	}
1081		1289
1082	void	1290	void
1083	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1291	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1084	{	1292	{
1085	ev_clear_pending (EV_A_ (W)w);	1293	ev_clear_pending (EV_A_ (W)w);
1086	if (!ev_is_active (w))	1294	if (!ev_is_active (w))
1087	return;	1295	return;
1088		1296
		1297	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1298
1089	if (w->active < periodiccnt--)	1299	if (((W)w)->active < periodiccnt--)
1090	{	1300	{
1091	periodics [w->active - 1] = periodics [periodiccnt];	1301	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1092	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1302	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1093	}	1303	}
1094		1304
		1305	ev_stop (EV_A_ (W)w);
		1306	}
		1307
		1308	void
		1309	ev_idle_start (EV_P_ struct ev_idle *w)
		1310	{
		1311	if (ev_is_active (w))
		1312	return;
		1313
		1314	ev_start (EV_A_ (W)w, ++idlecnt);
		1315	array_needsize (idles, idlemax, idlecnt, );
		1316	idles [idlecnt - 1] = w;
		1317	}
		1318
		1319	void
		1320	ev_idle_stop (EV_P_ struct ev_idle *w)
		1321	{
		1322	ev_clear_pending (EV_A_ (W)w);
		1323	if (ev_is_active (w))
		1324	return;
		1325
		1326	idles [((W)w)->active - 1] = idles [--idlecnt];
		1327	ev_stop (EV_A_ (W)w);
		1328	}
		1329
		1330	void
		1331	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1332	{
		1333	if (ev_is_active (w))
		1334	return;
		1335
		1336	ev_start (EV_A_ (W)w, ++preparecnt);
		1337	array_needsize (prepares, preparemax, preparecnt, );
		1338	prepares [preparecnt - 1] = w;
		1339	}
		1340
		1341	void
		1342	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1343	{
		1344	ev_clear_pending (EV_A_ (W)w);
		1345	if (ev_is_active (w))
		1346	return;
		1347
		1348	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1349	ev_stop (EV_A_ (W)w);
		1350	}
		1351
		1352	void
		1353	ev_check_start (EV_P_ struct ev_check *w)
		1354	{
		1355	if (ev_is_active (w))
		1356	return;
		1357
		1358	ev_start (EV_A_ (W)w, ++checkcnt);
		1359	array_needsize (checks, checkmax, checkcnt, );
		1360	checks [checkcnt - 1] = w;
		1361	}
		1362
		1363	void
		1364	ev_check_stop (EV_P_ struct ev_check *w)
		1365	{
		1366	ev_clear_pending (EV_A_ (W)w);
		1367	if (ev_is_active (w))
		1368	return;
		1369
		1370	checks [((W)w)->active - 1] = checks [--checkcnt];
1095	ev_stop (EV_A_ (W)w);	1371	ev_stop (EV_A_ (W)w);
1096	}	1372	}
1097		1373
1098	#ifndef SA_RESTART	1374	#ifndef SA_RESTART
1099	# define SA_RESTART 0	1375	# define SA_RESTART 0
1100	#endif	1376	#endif
1101		1377
1102	void	1378	void
1103	ev_signal_start (EV_P_ struct ev_signal *w)	1379	ev_signal_start (EV_P_ struct ev_signal *w)
1104	{	1380	{
		1381	#if EV_MULTIPLICITY
		1382	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1383	#endif
1105	if (ev_is_active (w))	1384	if (ev_is_active (w))
1106	return;	1385	return;
1107		1386
1108	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1387	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1109		1388
1110	ev_start (EV_A_ (W)w, 1);	1389	ev_start (EV_A_ (W)w, 1);
1111	array_needsize (signals, signalmax, w->signum, signals_init);	1390	array_needsize (signals, signalmax, w->signum, signals_init);
1112	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1391	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1113		1392
1114	if (!w->next)	1393	if (!((WL)w)->next)
1115	{	1394	{
		1395	#if WIN32
		1396	signal (w->signum, sighandler);
		1397	#else
1116	struct sigaction sa;	1398	struct sigaction sa;
1117	sa.sa_handler = sighandler;	1399	sa.sa_handler = sighandler;
1118	sigfillset (&sa.sa_mask);	1400	sigfillset (&sa.sa_mask);
1119	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1401	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1120	sigaction (w->signum, &sa, 0);	1402	sigaction (w->signum, &sa, 0);
		1403	#endif
1121	}	1404	}
1122	}	1405	}
1123		1406
1124	void	1407	void
1125	ev_signal_stop (EV_P_ struct ev_signal *w)	1408	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1134	if (!signals [w->signum - 1].head)	1417	if (!signals [w->signum - 1].head)
1135	signal (w->signum, SIG_DFL);	1418	signal (w->signum, SIG_DFL);
1136	}	1419	}
1137		1420
1138	void	1421	void
1139	ev_idle_start (EV_P_ struct ev_idle *w)
1140	{
1141	if (ev_is_active (w))
1142	return;
1143
1144	ev_start (EV_A_ (W)w, ++idlecnt);
1145	array_needsize (idles, idlemax, idlecnt, );
1146	idles [idlecnt - 1] = w;
1147	}
1148
1149	void
1150	ev_idle_stop (EV_P_ struct ev_idle *w)
1151	{
1152	ev_clear_pending (EV_A_ (W)w);
1153	if (ev_is_active (w))
1154	return;
1155
1156	idles [w->active - 1] = idles [--idlecnt];
1157	ev_stop (EV_A_ (W)w);
1158	}
1159
1160	void
1161	ev_prepare_start (EV_P_ struct ev_prepare *w)
1162	{
1163	if (ev_is_active (w))
1164	return;
1165
1166	ev_start (EV_A_ (W)w, ++preparecnt);
1167	array_needsize (prepares, preparemax, preparecnt, );
1168	prepares [preparecnt - 1] = w;
1169	}
1170
1171	void
1172	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1173	{
1174	ev_clear_pending (EV_A_ (W)w);
1175	if (ev_is_active (w))
1176	return;
1177
1178	prepares [w->active - 1] = prepares [--preparecnt];
1179	ev_stop (EV_A_ (W)w);
1180	}
1181
1182	void
1183	ev_check_start (EV_P_ struct ev_check *w)
1184	{
1185	if (ev_is_active (w))
1186	return;
1187
1188	ev_start (EV_A_ (W)w, ++checkcnt);
1189	array_needsize (checks, checkmax, checkcnt, );
1190	checks [checkcnt - 1] = w;
1191	}
1192
1193	void
1194	ev_check_stop (EV_P_ struct ev_check *w)
1195	{
1196	ev_clear_pending (EV_A_ (W)w);
1197	if (ev_is_active (w))
1198	return;
1199
1200	checks [w->active - 1] = checks [--checkcnt];
1201	ev_stop (EV_A_ (W)w);
1202	}
1203
1204	void
1205	ev_child_start (EV_P_ struct ev_child *w)	1422	ev_child_start (EV_P_ struct ev_child *w)
1206	{	1423	{
		1424	#if EV_MULTIPLICITY
		1425	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1426	#endif
1207	if (ev_is_active (w))	1427	if (ev_is_active (w))
1208	return;	1428	return;
1209		1429
1210	ev_start (EV_A_ (W)w, 1);	1430	ev_start (EV_A_ (W)w, 1);
1211	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1431	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1238	void (cb)(int revents, void arg) = once->cb;	1458	void (cb)(int revents, void arg) = once->cb;
1239	void *arg = once->arg;	1459	void *arg = once->arg;
1240		1460
1241	ev_io_stop (EV_A_ &once->io);	1461	ev_io_stop (EV_A_ &once->io);
1242	ev_timer_stop (EV_A_ &once->to);	1462	ev_timer_stop (EV_A_ &once->to);
1243	free (once);	1463	ev_free (once);
1244		1464
1245	cb (revents, arg);	1465	cb (revents, arg);
1246	}	1466	}
1247		1467
1248	static void	1468	static void
…		…
1258	}	1478	}
1259		1479
1260	void	1480	void
1261	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1481	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1262	{	1482	{
1263	struct ev_once *once = malloc (sizeof (struct ev_once));	1483	struct ev_once *once = ev_malloc (sizeof (struct ev_once));
1264		1484
1265	if (!once)	1485	if (!once)
1266	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1486	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1267	else	1487	else
1268	{	1488	{
…		…
1283	ev_timer_start (EV_A_ &once->to);	1503	ev_timer_start (EV_A_ &once->to);
1284	}	1504	}
1285	}	1505	}
1286	}	1506	}
1287		1507
1288	/*****************************************************************************/
1289
1290	#if 0
1291
1292	struct ev_io wio;
1293
1294	static void
1295	sin_cb (struct ev_io *w, int revents)
1296	{
1297	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1298	}
1299
1300	static void
1301	ocb (struct ev_timer *w, int revents)
1302	{
1303	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1304	ev_timer_stop (w);
1305	ev_timer_start (w);
1306	}
1307
1308	static void
1309	scb (struct ev_signal *w, int revents)
1310	{
1311	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1312	ev_io_stop (&wio);
1313	ev_io_start (&wio);
1314	}
1315
1316	static void
1317	gcb (struct ev_signal *w, int revents)
1318	{
1319	fprintf (stderr, "generic %x\n", revents);
1320
1321	}
1322
1323	int main (void)
1324	{
1325	ev_init (0);
1326
1327	ev_io_init (&wio, sin_cb, 0, EV_READ);
1328	ev_io_start (&wio);
1329
1330	struct ev_timer t[10000];
1331
1332	#if 0
1333	int i;
1334	for (i = 0; i < 10000; ++i)
1335	{
1336	struct ev_timer *w = t + i;
1337	ev_watcher_init (w, ocb, i);
1338	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1339	ev_timer_start (w);
1340	if (drand48 () < 0.5)
1341	ev_timer_stop (w);
1342	}
1343	#endif
1344
1345	struct ev_timer t1;
1346	ev_timer_init (&t1, ocb, 5, 10);
1347	ev_timer_start (&t1);
1348
1349	struct ev_signal sig;
1350	ev_signal_init (&sig, scb, SIGQUIT);
1351	ev_signal_start (&sig);
1352
1353	struct ev_check cw;
1354	ev_check_init (&cw, gcb);
1355	ev_check_start (&cw);
1356
1357	struct ev_idle iw;
1358	ev_idle_init (&iw, gcb);
1359	ev_idle_start (&iw);
1360
1361	ev_loop (0);
1362
1363	return 0;
1364	}
1365
1366	#endif
1367
1368
1369
1370

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Comparing libev/ev.c (file contents): Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs. Revision 1.70 by root, Tue Nov 6 00:52:32 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs.
Revision 1.70 by root, Tue Nov 6 00:52:32 2007 UTC