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

Comparing libev/ev.c (file contents):
Revision 1.53 by root, Sat Nov 3 22:31:11 2007 UTC vs.
Revision 1.73 by root, Tue Nov 6 16:27:10 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>
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>
		67	#include <time.h>
		68
		69	#include <signal.h>
		70
47	#ifndef WIN32	71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
48	# include <sys/wait.h>	74	# include <sys/wait.h>
49	#endif	75	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	76	/**/
54		77
55	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
57	#endif	80	#endif
58		81
59	#ifndef EV_USE_SELECT	82	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	83	# define EV_USE_SELECT 1
61	#endif	84	#endif
62		85
63	#ifndef EV_USEV_POLL	86	#ifndef EV_USE_POLL
64	# define EV_USEV_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 */
65	#endif	88	#endif
66		89
67	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
69	#endif	92	#endif
70		93
71	#ifndef EV_USE_KQUEUE	94	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	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
73	#endif	106	#endif
74		107
75	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
77	#endif	110	#endif
…		…
113		146
114	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
117		150
		151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		152
		153	#include "ev_win32.c"
		154
118	/*****************************************************************************/	155	/*****************************************************************************/
119		156
		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
120	typedef struct	205	typedef struct
121	{	206	{
122	struct ev_watcher_list *head;	207	WL head;
123	unsigned char events;	208	unsigned char events;
124	unsigned char reify;	209	unsigned char reify;
125	} ANFD;	210	} ANFD;
126		211
127	typedef struct	212	typedef struct
128	{	213	{
129	W w;	214	W w;
130	int events;	215	int events;
131	} ANPENDING;	216	} ANPENDING;
132		217
133	#ifdef EV_MULTIPLICITY	218	#if EV_MULTIPLICITY
		219
134	struct ev_loop	220	struct ev_loop
135	{	221	{
136	# define VAR(name,decl) decl	222	# define VAR(name,decl) decl;
137	# include "ev_vars.h"	223	# include "ev_vars.h"
138	};	224	};
		225	# undef VAR
		226	# include "ev_wrap.h"
		227
139	#else	228	#else
		229
140	# define VAR(name,decl) static decl	230	# define VAR(name,decl) static decl;
141	# include "ev_vars.h"	231	# include "ev_vars.h"
142	#endif
143	#undef VAR	232	# undef VAR
		233
		234	#endif
144		235
145	/*****************************************************************************/	236	/*****************************************************************************/
146		237
147	inline ev_tstamp	238	inline ev_tstamp
148	ev_time (void)	239	ev_time (void)
…		…
179	return rt_now;	270	return rt_now;
180	}	271	}
181		272
182	#define array_roundsize(base,n) ((n) \| 4 & ~3)	273	#define array_roundsize(base,n) ((n) \| 4 & ~3)
183		274
184	#define array_needsize(base,cur,cnt,init) \	275	#define array_needsize(base,cur,cnt,init) \
185	if (expect_false ((cnt) > cur)) \	276	if (expect_false ((cnt) > cur)) \
186	{ \	277	{ \
187	int newcnt = cur; \	278	int newcnt = cur; \
188	do \	279	do \
189	{ \	280	{ \
190	newcnt = array_roundsize (base, newcnt << 1); \	281	newcnt = array_roundsize (base, newcnt << 1); \
191	} \	282	} \
192	while ((cnt) > newcnt); \	283	while ((cnt) > newcnt); \
193	\	284	\
194	base = realloc (base, sizeof (base) (newcnt)); \	285	base = ev_realloc (base, sizeof (base) (newcnt)); \
195	init (base + cur, newcnt - cur); \	286	init (base + cur, newcnt - cur); \
196	cur = newcnt; \	287	cur = newcnt; \
197	}	288	}
		289
		290	#define array_slim(stem) \
		291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		292	{ \
		293	stem ## max = array_roundsize (stem ## cnt >> 1); \
		294	base = ev_realloc (base, sizeof (base) (stem ## max)); \
		295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		296	}
		297
		298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		300	#define array_free_microshit(stem) \
		301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		302
		303	#define array_free(stem, idx) \
		304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
198		305
199	/*****************************************************************************/	306	/*****************************************************************************/
200		307
201	static void	308	static void
202	anfds_init (ANFD *base, int count)	309	anfds_init (ANFD *base, int count)
…		…
219	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	326	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
220	return;	327	return;
221	}	328	}
222		329
223	w->pending = ++pendingcnt [ABSPRI (w)];	330	w->pending = ++pendingcnt [ABSPRI (w)];
224	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	331	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
225	pendings [ABSPRI (w)][w->pending - 1].w = w;	332	pendings [ABSPRI (w)][w->pending - 1].w = w;
226	pendings [ABSPRI (w)][w->pending - 1].events = events;	333	pendings [ABSPRI (w)][w->pending - 1].events = events;
227	}	334	}
228		335
229	static void	336	static void
…		…
268	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
269	events \|= w->events;	376	events \|= w->events;
270		377
271	anfd->reify = 0;	378	anfd->reify = 0;
272		379
273	if (anfd->events != events)
274	{
275	method_modify (EV_A_ fd, anfd->events, events);	380	method_modify (EV_A_ fd, anfd->events, events);
276	anfd->events = events;	381	anfd->events = events;
277	}
278	}	382	}
279		383
280	fdchangecnt = 0;	384	fdchangecnt = 0;
281	}	385	}
282		386
283	static void	387	static void
284	fd_change (EV_P_ int fd)	388	fd_change (EV_P_ int fd)
285	{	389	{
286	if (anfds [fd].reify \|\| fdchangecnt < 0)	390	if (anfds [fd].reify)
287	return;	391	return;
288		392
289	anfds [fd].reify = 1;	393	anfds [fd].reify = 1;
290		394
291	++fdchangecnt;	395	++fdchangecnt;
292	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	396	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));
293	fdchanges [fdchangecnt - 1] = fd;	397	fdchanges [fdchangecnt - 1] = fd;
294	}	398	}
295		399
296	static void	400	static void
297	fd_kill (EV_P_ int fd)	401	fd_kill (EV_P_ int fd)
…		…
303	ev_io_stop (EV_A_ w);	407	ev_io_stop (EV_A_ w);
304	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	408	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	409	}
306	}	410	}
307		411
		412	static int
		413	fd_valid (int fd)
		414	{
		415	#ifdef WIN32
		416	return !!win32_get_osfhandle (fd);
		417	#else
		418	return fcntl (fd, F_GETFD) != -1;
		419	#endif
		420	}
		421
308	/* called on EBADF to verify fds */	422	/* called on EBADF to verify fds */
309	static void	423	static void
310	fd_ebadf (EV_P)	424	fd_ebadf (EV_P)
311	{	425	{
312	int fd;	426	int fd;
313		427
314	for (fd = 0; fd < anfdmax; ++fd)	428	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	429	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	430	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (EV_A_ fd);	431	fd_kill (EV_A_ fd);
318	}	432	}
319		433
320	/* called on ENOMEM in select/poll to kill some fds and retry */	434	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	435	static void
322	fd_enomem (EV_P)	436	fd_enomem (EV_P)
323	{	437	{
324	int fd = anfdmax;	438	int fd;
325		439
326	while (fd--)	440	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	441	if (anfds [fd].events)
328	{	442	{
329	close (fd);
330	fd_kill (EV_A_ fd);	443	fd_kill (EV_A_ fd);
331	return;	444	return;
332	}	445	}
333	}	446	}
334		447
		448	/* usually called after fork if method needs to re-arm all fds from scratch */
		449	static void
		450	fd_rearm_all (EV_P)
		451	{
		452	int fd;
		453
		454	/* this should be highly optimised to not do anything but set a flag */
		455	for (fd = 0; fd < anfdmax; ++fd)
		456	if (anfds [fd].events)
		457	{
		458	anfds [fd].events = 0;
		459	fd_change (EV_A_ fd);
		460	}
		461	}
		462
335	/*****************************************************************************/	463	/*****************************************************************************/
336		464
337	static void	465	static void
338	upheap (WT *timers, int k)	466	upheap (WT *heap, int k)
339	{	467	{
340	WT w = timers [k];	468	WT w = heap [k];
341		469
342	while (k && timers [k >> 1]->at > w->at)	470	while (k && heap [k >> 1]->at > w->at)
343	{	471	{
344	timers [k] = timers [k >> 1];	472	heap [k] = heap [k >> 1];
345	timers [k]->active = k + 1;	473	((W)heap [k])->active = k + 1;
346	k >>= 1;	474	k >>= 1;
347	}	475	}
348		476
349	timers [k] = w;	477	heap [k] = w;
350	timers [k]->active = k + 1;	478	((W)heap [k])->active = k + 1;
351		479
352	}	480	}
353		481
354	static void	482	static void
355	downheap (WT *timers, int N, int k)	483	downheap (WT *heap, int N, int k)
356	{	484	{
357	WT w = timers [k];	485	WT w = heap [k];
358		486
359	while (k < (N >> 1))	487	while (k < (N >> 1))
360	{	488	{
361	int j = k << 1;	489	int j = k << 1;
362		490
363	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	491	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364	++j;	492	++j;
365		493
366	if (w->at <= timers [j]->at)	494	if (w->at <= heap [j]->at)
367	break;	495	break;
368		496
369	timers [k] = timers [j];	497	heap [k] = heap [j];
370	timers [k]->active = k + 1;	498	((W)heap [k])->active = k + 1;
371	k = j;	499	k = j;
372	}	500	}
373		501
374	timers [k] = w;	502	heap [k] = w;
375	timers [k]->active = k + 1;	503	((W)heap [k])->active = k + 1;
376	}	504	}
377		505
378	/*****************************************************************************/	506	/*****************************************************************************/
379		507
380	typedef struct	508	typedef struct
381	{	509	{
382	struct ev_watcher_list *head;	510	WL head;
383	sig_atomic_t volatile gotsig;	511	sig_atomic_t volatile gotsig;
384	} ANSIG;	512	} ANSIG;
385		513
386	static ANSIG *signals;	514	static ANSIG *signals;
387	static int signalmax;	515	static int signalmax;
388		516
389	static int sigpipe [2];	517	static int sigpipe [2];
390	static sig_atomic_t volatile gotsig;	518	static sig_atomic_t volatile gotsig;
		519	static struct ev_io sigev;
391		520
392	static void	521	static void
393	signals_init (ANSIG *base, int count)	522	signals_init (ANSIG *base, int count)
394	{	523	{
395	while (count--)	524	while (count--)
…		…
402	}	531	}
403		532
404	static void	533	static void
405	sighandler (int signum)	534	sighandler (int signum)
406	{	535	{
		536	#if WIN32
		537	signal (signum, sighandler);
		538	#endif
		539
407	signals [signum - 1].gotsig = 1;	540	signals [signum - 1].gotsig = 1;
408		541
409	if (!gotsig)	542	if (!gotsig)
410	{	543	{
411	int old_errno = errno;	544	int old_errno = errno;
…		…
416	}	549	}
417		550
418	static void	551	static void
419	sigcb (EV_P_ struct ev_io *iow, int revents)	552	sigcb (EV_P_ struct ev_io *iow, int revents)
420	{	553	{
421	struct ev_watcher_list *w;	554	WL w;
422	int signum;	555	int signum;
423		556
424	read (sigpipe [0], &revents, 1);	557	read (sigpipe [0], &revents, 1);
425	gotsig = 0;	558	gotsig = 0;
426		559
…		…
445	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	578	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
446	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	579	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
447	#endif	580	#endif
448		581
449	ev_io_set (&sigev, sigpipe [0], EV_READ);	582	ev_io_set (&sigev, sigpipe [0], EV_READ);
450	ev_io_start (&sigev);	583	ev_io_start (EV_A_ &sigev);
451	ev_unref (EV_A); /* child watcher should not keep loop alive */	584	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	585	}
453		586
454	/*****************************************************************************/	587	/*****************************************************************************/
455		588
		589	static struct ev_child *childs [PID_HASHSIZE];
		590
456	#ifndef WIN32	591	#ifndef WIN32
		592
		593	static struct ev_signal childev;
457		594
458	#ifndef WCONTINUED	595	#ifndef WCONTINUED
459	# define WCONTINUED 0	596	# define WCONTINUED 0
460	#endif	597	#endif
461		598
…		…
465	struct ev_child *w;	602	struct ev_child *w;
466		603
467	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	604	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
468	if (w->pid == pid \|\| !w->pid)	605	if (w->pid == pid \|\| !w->pid)
469	{	606	{
470	w->priority = sw->priority; /* need to do it now */	607	ev_priority (w) = ev_priority (sw); /* need to do it now */
471	w->rpid = pid;	608	w->rpid = pid;
472	w->rstatus = status;	609	w->rstatus = status;
473	event (EV_A_ (W)w, EV_CHILD);	610	event (EV_A_ (W)w, EV_CHILD);
474	}	611	}
475	}	612	}
476		613
477	static void	614	static void
…		…
497	# include "ev_kqueue.c"	634	# include "ev_kqueue.c"
498	#endif	635	#endif
499	#if EV_USE_EPOLL	636	#if EV_USE_EPOLL
500	# include "ev_epoll.c"	637	# include "ev_epoll.c"
501	#endif	638	#endif
502	#if EV_USEV_POLL	639	#if EV_USE_POLL
503	# include "ev_poll.c"	640	# include "ev_poll.c"
504	#endif	641	#endif
505	#if EV_USE_SELECT	642	#if EV_USE_SELECT
506	# include "ev_select.c"	643	# include "ev_select.c"
507	#endif	644	#endif
…		…
534	ev_method (EV_P)	671	ev_method (EV_P)
535	{	672	{
536	return method;	673	return method;
537	}	674	}
538		675
539	int	676	static void
540	ev_init (EV_P_ int methods)	677	loop_init (EV_P_ int methods)
541	{	678	{
542	#ifdef EV_MULTIPLICITY
543	memset (loop, 0, sizeof (struct ev_loop));
544	#endif
545
546	if (!method)	679	if (!method)
547	{	680	{
548	#if EV_USE_MONOTONIC	681	#if EV_USE_MONOTONIC
549	{	682	{
550	struct timespec ts;	683	struct timespec ts;
…		…
554	#endif	687	#endif
555		688
556	rt_now = ev_time ();	689	rt_now = ev_time ();
557	mn_now = get_clock ();	690	mn_now = get_clock ();
558	now_floor = mn_now;	691	now_floor = mn_now;
559	diff = rt_now - mn_now;	692	rtmn_diff = rt_now - mn_now;
560
561	if (pipe (sigpipe))
562	return 0;
563		693
564	if (methods == EVMETHOD_AUTO)	694	if (methods == EVMETHOD_AUTO)
565	if (!enable_secure () && getenv ("LIBmethodS"))	695	if (!enable_secure () && getenv ("LIBEV_METHODS"))
566	methods = atoi (getenv ("LIBmethodS"));	696	methods = atoi (getenv ("LIBEV_METHODS"));
567	else	697	else
568	methods = EVMETHOD_ANY;	698	methods = EVMETHOD_ANY;
569		699
570	method = 0;	700	method = 0;
		701	#if EV_USE_WIN32
		702	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		703	#endif
571	#if EV_USE_KQUEUE	704	#if EV_USE_KQUEUE
572	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	705	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
573	#endif	706	#endif
574	#if EV_USE_EPOLL	707	#if EV_USE_EPOLL
575	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	708	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
576	#endif	709	#endif
577	#if EV_USEV_POLL	710	#if EV_USE_POLL
578	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	711	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
579	#endif	712	#endif
580	#if EV_USE_SELECT	713	#if EV_USE_SELECT
581	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	714	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
582	#endif	715	#endif
583		716
		717	ev_watcher_init (&sigev, sigcb);
		718	ev_set_priority (&sigev, EV_MAXPRI);
		719	}
		720	}
		721
		722	void
		723	loop_destroy (EV_P)
		724	{
		725	int i;
		726
		727	#if EV_USE_WIN32
		728	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		729	#endif
		730	#if EV_USE_KQUEUE
		731	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		732	#endif
		733	#if EV_USE_EPOLL
		734	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		735	#endif
		736	#if EV_USE_POLL
		737	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		738	#endif
		739	#if EV_USE_SELECT
		740	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		741	#endif
		742
		743	for (i = NUMPRI; i--; )
		744	array_free (pending, [i]);
		745
		746	/* have to use the microsoft-never-gets-it-right macro */
		747	array_free_microshit (fdchange);
		748	array_free_microshit (timer);
		749	array_free_microshit (periodic);
		750	array_free_microshit (idle);
		751	array_free_microshit (prepare);
		752	array_free_microshit (check);
		753
		754	method = 0;
		755	}
		756
		757	static void
		758	loop_fork (EV_P)
		759	{
		760	#if EV_USE_EPOLL
		761	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		762	#endif
		763	#if EV_USE_KQUEUE
		764	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		765	#endif
		766
		767	if (ev_is_active (&sigev))
		768	{
		769	/* default loop */
		770
		771	ev_ref (EV_A);
		772	ev_io_stop (EV_A_ &sigev);
		773	close (sigpipe [0]);
		774	close (sigpipe [1]);
		775
		776	while (pipe (sigpipe))
		777	syserr ("(libev) error creating pipe");
		778
		779	siginit (EV_A);
		780	}
		781
		782	postfork = 0;
		783	}
		784
		785	#if EV_MULTIPLICITY
		786	struct ev_loop *
		787	ev_loop_new (int methods)
		788	{
		789	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		790
		791	memset (loop, 0, sizeof (struct ev_loop));
		792
		793	loop_init (EV_A_ methods);
		794
		795	if (ev_method (EV_A))
		796	return loop;
		797
		798	return 0;
		799	}
		800
		801	void
		802	ev_loop_destroy (EV_P)
		803	{
		804	loop_destroy (EV_A);
		805	ev_free (loop);
		806	}
		807
		808	void
		809	ev_loop_fork (EV_P)
		810	{
		811	postfork = 1;
		812	}
		813
		814	#endif
		815
		816	#if EV_MULTIPLICITY
		817	struct ev_loop default_loop_struct;
		818	static struct ev_loop *default_loop;
		819
		820	struct ev_loop *
		821	#else
		822	static int default_loop;
		823
		824	int
		825	#endif
		826	ev_default_loop (int methods)
		827	{
		828	if (sigpipe [0] == sigpipe [1])
		829	if (pipe (sigpipe))
		830	return 0;
		831
		832	if (!default_loop)
		833	{
		834	#if EV_MULTIPLICITY
		835	struct ev_loop *loop = default_loop = &default_loop_struct;
		836	#else
		837	default_loop = 1;
		838	#endif
		839
		840	loop_init (EV_A_ methods);
		841
584	if (method)	842	if (ev_method (EV_A))
585	{	843	{
586	ev_watcher_init (&sigev, sigcb);
587	ev_set_priority (&sigev, EV_MAXPRI);
588	siginit (EV_A);	844	siginit (EV_A);
589		845
590	#ifndef WIN32	846	#ifndef WIN32
591	ev_signal_init (&childev, childcb, SIGCHLD);	847	ev_signal_init (&childev, childcb, SIGCHLD);
592	ev_set_priority (&childev, EV_MAXPRI);	848	ev_set_priority (&childev, EV_MAXPRI);
593	ev_signal_start (EV_A_ &childev);	849	ev_signal_start (EV_A_ &childev);
594	ev_unref (EV_A); /* child watcher should not keep loop alive */	850	ev_unref (EV_A); /* child watcher should not keep loop alive */
595	#endif	851	#endif
596	}	852	}
		853	else
		854	default_loop = 0;
597	}	855	}
598		856
599	return method;	857	return default_loop;
600	}	858	}
601		859
602	/*****************************************************************************/
603
604	void	860	void
605	ev_fork_prepare (void)	861	ev_default_destroy (void)
606	{	862	{
607	/* nop */	863	#if EV_MULTIPLICITY
608	}	864	struct ev_loop *loop = default_loop;
609
610	void
611	ev_fork_parent (void)
612	{
613	/* nop */
614	}
615
616	void
617	ev_fork_child (void)
618	{
619	#if EV_USE_EPOLL
620	if (method == EVMETHOD_EPOLL)
621	epoll_postfork_child ();
622	#endif	865	#endif
623		866
		867	#ifndef WIN32
		868	ev_ref (EV_A); /* child watcher */
		869	ev_signal_stop (EV_A_ &childev);
		870	#endif
		871
		872	ev_ref (EV_A); /* signal watcher */
624	ev_io_stop (&sigev);	873	ev_io_stop (EV_A_ &sigev);
625	close (sigpipe [0]);	874
626	close (sigpipe [1]);	875	close (sigpipe [0]); sigpipe [0] = 0;
627	pipe (sigpipe);	876	close (sigpipe [1]); sigpipe [1] = 0;
628	siginit ();	877
		878	loop_destroy (EV_A);
		879	}
		880
		881	void
		882	ev_default_fork (void)
		883	{
		884	#if EV_MULTIPLICITY
		885	struct ev_loop *loop = default_loop;
		886	#endif
		887
		888	if (method)
		889	postfork = 1;
629	}	890	}
630		891
631	/*****************************************************************************/	892	/*****************************************************************************/
632		893
633	static void	894	static void
…		…
649	}	910	}
650		911
651	static void	912	static void
652	timers_reify (EV_P)	913	timers_reify (EV_P)
653	{	914	{
654	while (timercnt && timers [0]->at <= mn_now)	915	while (timercnt && ((WT)timers [0])->at <= mn_now)
655	{	916	{
656	struct ev_timer *w = timers [0];	917	struct ev_timer *w = timers [0];
		918
		919	assert (("inactive timer on timer heap detected", ev_is_active (w)));
657		920
658	/* first reschedule or stop timer */	921	/* first reschedule or stop timer */
659	if (w->repeat)	922	if (w->repeat)
660	{	923	{
661	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	924	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
662	w->at = mn_now + w->repeat;	925	((WT)w)->at = mn_now + w->repeat;
663	downheap ((WT *)timers, timercnt, 0);	926	downheap ((WT *)timers, timercnt, 0);
664	}	927	}
665	else	928	else
666	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	929	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
667		930
668	event ((W)w, EV_TIMEOUT);	931	event (EV_A_ (W)w, EV_TIMEOUT);
669	}	932	}
670	}	933	}
671		934
672	static void	935	static void
673	periodics_reify (EV_P)	936	periodics_reify (EV_P)
674	{	937	{
675	while (periodiccnt && periodics [0]->at <= rt_now)	938	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
676	{	939	{
677	struct ev_periodic *w = periodics [0];	940	struct ev_periodic *w = periodics [0];
		941
		942	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
678		943
679	/* first reschedule or stop timer */	944	/* first reschedule or stop timer */
680	if (w->interval)	945	if (w->interval)
681	{	946	{
682	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	947	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
683	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	948	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
684	downheap ((WT *)periodics, periodiccnt, 0);	949	downheap ((WT *)periodics, periodiccnt, 0);
685	}	950	}
686	else	951	else
687	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	952	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
688		953
689	event (EV_A_ (W)w, EV_PERIODIC);	954	event (EV_A_ (W)w, EV_PERIODIC);
690	}	955	}
691	}	956	}
692		957
693	static void	958	static void
694	periodics_reschedule (EV_P_ ev_tstamp diff)	959	periodics_reschedule (EV_P)
695	{	960	{
696	int i;	961	int i;
697		962
698	/* adjust periodics after time jump */	963	/* adjust periodics after time jump */
699	for (i = 0; i < periodiccnt; ++i)	964	for (i = 0; i < periodiccnt; ++i)
700	{	965	{
701	struct ev_periodic *w = periodics [i];	966	struct ev_periodic *w = periodics [i];
702		967
703	if (w->interval)	968	if (w->interval)
704	{	969	{
705	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	970	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
706		971
707	if (fabs (diff) >= 1e-4)	972	if (fabs (diff) >= 1e-4)
708	{	973	{
709	ev_periodic_stop (EV_A_ w);	974	ev_periodic_stop (EV_A_ w);
710	ev_periodic_start (EV_A_ w);	975	ev_periodic_start (EV_A_ w);
…		…
720	{	985	{
721	mn_now = get_clock ();	986	mn_now = get_clock ();
722		987
723	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	988	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
724	{	989	{
725	rt_now = mn_now + diff;	990	rt_now = rtmn_diff + mn_now;
726	return 0;	991	return 0;
727	}	992	}
728	else	993	else
729	{	994	{
730	now_floor = mn_now;	995	now_floor = mn_now;
…		…
741	#if EV_USE_MONOTONIC	1006	#if EV_USE_MONOTONIC
742	if (expect_true (have_monotonic))	1007	if (expect_true (have_monotonic))
743	{	1008	{
744	if (time_update_monotonic (EV_A))	1009	if (time_update_monotonic (EV_A))
745	{	1010	{
746	ev_tstamp odiff = diff;	1011	ev_tstamp odiff = rtmn_diff;
747		1012
748	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1013	for (i = 4; --i; ) /* loop a few times, before making important decisions */
749	{	1014	{
750	diff = rt_now - mn_now;	1015	rtmn_diff = rt_now - mn_now;
751		1016
752	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1017	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
753	return; /* all is well */	1018	return; /* all is well */
754		1019
755	rt_now = ev_time ();	1020	rt_now = ev_time ();
756	mn_now = get_clock ();	1021	mn_now = get_clock ();
757	now_floor = mn_now;	1022	now_floor = mn_now;
758	}	1023	}
759		1024
760	periodics_reschedule (EV_A_ diff - odiff);	1025	periodics_reschedule (EV_A);
761	/* no timer adjustment, as the monotonic clock doesn't jump */	1026	/* no timer adjustment, as the monotonic clock doesn't jump */
		1027	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
762	}	1028	}
763	}	1029	}
764	else	1030	else
765	#endif	1031	#endif
766	{	1032	{
767	rt_now = ev_time ();	1033	rt_now = ev_time ();
768		1034
769	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1035	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
770	{	1036	{
771	periodics_reschedule (EV_A_ rt_now - mn_now);	1037	periodics_reschedule (EV_A);
772		1038
773	/* adjust timers. this is easy, as the offset is the same for all */	1039	/* adjust timers. this is easy, as the offset is the same for all */
774	for (i = 0; i < timercnt; ++i)	1040	for (i = 0; i < timercnt; ++i)
775	timers [i]->at += diff;	1041	((WT)timers [i])->at += rt_now - mn_now;
776	}	1042	}
777		1043
778	mn_now = rt_now;	1044	mn_now = rt_now;
779	}	1045	}
780	}	1046	}
…		…
806	{	1072	{
807	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1073	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
808	call_pending (EV_A);	1074	call_pending (EV_A);
809	}	1075	}
810		1076
		1077	/* we might have forked, so reify kernel state if necessary */
		1078	if (expect_false (postfork))
		1079	loop_fork (EV_A);
		1080
811	/* update fd-related kernel structures */	1081	/* update fd-related kernel structures */
812	fd_reify (EV_A);	1082	fd_reify (EV_A);
813		1083
814	/* calculate blocking time */	1084	/* calculate blocking time */
815		1085
…		…
831	{	1101	{
832	block = MAX_BLOCKTIME;	1102	block = MAX_BLOCKTIME;
833		1103
834	if (timercnt)	1104	if (timercnt)
835	{	1105	{
836	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1106	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
837	if (block > to) block = to;	1107	if (block > to) block = to;
838	}	1108	}
839		1109
840	if (periodiccnt)	1110	if (periodiccnt)
841	{	1111	{
842	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1112	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
843	if (block > to) block = to;	1113	if (block > to) block = to;
844	}	1114	}
845		1115
846	if (block < 0.) block = 0.;	1116	if (block < 0.) block = 0.;
847	}	1117	}
…		…
964	ev_timer_start (EV_P_ struct ev_timer *w)	1234	ev_timer_start (EV_P_ struct ev_timer *w)
965	{	1235	{
966	if (ev_is_active (w))	1236	if (ev_is_active (w))
967	return;	1237	return;
968		1238
969	w->at += mn_now;	1239	((WT)w)->at += mn_now;
970		1240
971	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1241	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
972		1242
973	ev_start (EV_A_ (W)w, ++timercnt);	1243	ev_start (EV_A_ (W)w, ++timercnt);
974	array_needsize (timers, timermax, timercnt, );	1244	array_needsize (timers, timermax, timercnt, (void));
975	timers [timercnt - 1] = w;	1245	timers [timercnt - 1] = w;
976	upheap ((WT *)timers, timercnt - 1);	1246	upheap ((WT *)timers, timercnt - 1);
		1247
		1248	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
977	}	1249	}
978		1250
979	void	1251	void
980	ev_timer_stop (EV_P_ struct ev_timer *w)	1252	ev_timer_stop (EV_P_ struct ev_timer *w)
981	{	1253	{
982	ev_clear_pending (EV_A_ (W)w);	1254	ev_clear_pending (EV_A_ (W)w);
983	if (!ev_is_active (w))	1255	if (!ev_is_active (w))
984	return;	1256	return;
985		1257
		1258	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1259
986	if (w->active < timercnt--)	1260	if (((W)w)->active < timercnt--)
987	{	1261	{
988	timers [w->active - 1] = timers [timercnt];	1262	timers [((W)w)->active - 1] = timers [timercnt];
989	downheap ((WT *)timers, timercnt, w->active - 1);	1263	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
990	}	1264	}
991		1265
992	w->at = w->repeat;	1266	((WT)w)->at = w->repeat;
993		1267
994	ev_stop (EV_A_ (W)w);	1268	ev_stop (EV_A_ (W)w);
995	}	1269	}
996		1270
997	void	1271	void
…		…
999	{	1273	{
1000	if (ev_is_active (w))	1274	if (ev_is_active (w))
1001	{	1275	{
1002	if (w->repeat)	1276	if (w->repeat)
1003	{	1277	{
1004	w->at = mn_now + w->repeat;	1278	((WT)w)->at = mn_now + w->repeat;
1005	downheap ((WT *)timers, timercnt, w->active - 1);	1279	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1006	}	1280	}
1007	else	1281	else
1008	ev_timer_stop (EV_A_ w);	1282	ev_timer_stop (EV_A_ w);
1009	}	1283	}
1010	else if (w->repeat)	1284	else if (w->repeat)
…		…
1019		1293
1020	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1294	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1021		1295
1022	/* this formula differs from the one in periodic_reify because we do not always round up */	1296	/* this formula differs from the one in periodic_reify because we do not always round up */
1023	if (w->interval)	1297	if (w->interval)
1024	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1298	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1025		1299
1026	ev_start (EV_A_ (W)w, ++periodiccnt);	1300	ev_start (EV_A_ (W)w, ++periodiccnt);
1027	array_needsize (periodics, periodicmax, periodiccnt, );	1301	array_needsize (periodics, periodicmax, periodiccnt, (void));
1028	periodics [periodiccnt - 1] = w;	1302	periodics [periodiccnt - 1] = w;
1029	upheap ((WT *)periodics, periodiccnt - 1);	1303	upheap ((WT *)periodics, periodiccnt - 1);
		1304
		1305	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1030	}	1306	}
1031		1307
1032	void	1308	void
1033	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1309	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1034	{	1310	{
1035	ev_clear_pending (EV_A_ (W)w);	1311	ev_clear_pending (EV_A_ (W)w);
1036	if (!ev_is_active (w))	1312	if (!ev_is_active (w))
1037	return;	1313	return;
1038		1314
		1315	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1316
1039	if (w->active < periodiccnt--)	1317	if (((W)w)->active < periodiccnt--)
1040	{	1318	{
1041	periodics [w->active - 1] = periodics [periodiccnt];	1319	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1042	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1320	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1043	}	1321	}
1044		1322
		1323	ev_stop (EV_A_ (W)w);
		1324	}
		1325
		1326	void
		1327	ev_idle_start (EV_P_ struct ev_idle *w)
		1328	{
		1329	if (ev_is_active (w))
		1330	return;
		1331
		1332	ev_start (EV_A_ (W)w, ++idlecnt);
		1333	array_needsize (idles, idlemax, idlecnt, (void));
		1334	idles [idlecnt - 1] = w;
		1335	}
		1336
		1337	void
		1338	ev_idle_stop (EV_P_ struct ev_idle *w)
		1339	{
		1340	ev_clear_pending (EV_A_ (W)w);
		1341	if (ev_is_active (w))
		1342	return;
		1343
		1344	idles [((W)w)->active - 1] = idles [--idlecnt];
		1345	ev_stop (EV_A_ (W)w);
		1346	}
		1347
		1348	void
		1349	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1350	{
		1351	if (ev_is_active (w))
		1352	return;
		1353
		1354	ev_start (EV_A_ (W)w, ++preparecnt);
		1355	array_needsize (prepares, preparemax, preparecnt, (void));
		1356	prepares [preparecnt - 1] = w;
		1357	}
		1358
		1359	void
		1360	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1361	{
		1362	ev_clear_pending (EV_A_ (W)w);
		1363	if (ev_is_active (w))
		1364	return;
		1365
		1366	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1367	ev_stop (EV_A_ (W)w);
		1368	}
		1369
		1370	void
		1371	ev_check_start (EV_P_ struct ev_check *w)
		1372	{
		1373	if (ev_is_active (w))
		1374	return;
		1375
		1376	ev_start (EV_A_ (W)w, ++checkcnt);
		1377	array_needsize (checks, checkmax, checkcnt, (void));
		1378	checks [checkcnt - 1] = w;
		1379	}
		1380
		1381	void
		1382	ev_check_stop (EV_P_ struct ev_check *w)
		1383	{
		1384	ev_clear_pending (EV_A_ (W)w);
		1385	if (ev_is_active (w))
		1386	return;
		1387
		1388	checks [((W)w)->active - 1] = checks [--checkcnt];
1045	ev_stop (EV_A_ (W)w);	1389	ev_stop (EV_A_ (W)w);
1046	}	1390	}
1047		1391
1048	#ifndef SA_RESTART	1392	#ifndef SA_RESTART
1049	# define SA_RESTART 0	1393	# define SA_RESTART 0
1050	#endif	1394	#endif
1051		1395
1052	void	1396	void
1053	ev_signal_start (EV_P_ struct ev_signal *w)	1397	ev_signal_start (EV_P_ struct ev_signal *w)
1054	{	1398	{
		1399	#if EV_MULTIPLICITY
		1400	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1401	#endif
1055	if (ev_is_active (w))	1402	if (ev_is_active (w))
1056	return;	1403	return;
1057		1404
1058	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1405	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1059		1406
1060	ev_start (EV_A_ (W)w, 1);	1407	ev_start (EV_A_ (W)w, 1);
1061	array_needsize (signals, signalmax, w->signum, signals_init);	1408	array_needsize (signals, signalmax, w->signum, signals_init);
1062	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1409	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1063		1410
1064	if (!w->next)	1411	if (!((WL)w)->next)
1065	{	1412	{
		1413	#if WIN32
		1414	signal (w->signum, sighandler);
		1415	#else
1066	struct sigaction sa;	1416	struct sigaction sa;
1067	sa.sa_handler = sighandler;	1417	sa.sa_handler = sighandler;
1068	sigfillset (&sa.sa_mask);	1418	sigfillset (&sa.sa_mask);
1069	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1419	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1070	sigaction (w->signum, &sa, 0);	1420	sigaction (w->signum, &sa, 0);
		1421	#endif
1071	}	1422	}
1072	}	1423	}
1073		1424
1074	void	1425	void
1075	ev_signal_stop (EV_P_ struct ev_signal *w)	1426	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1084	if (!signals [w->signum - 1].head)	1435	if (!signals [w->signum - 1].head)
1085	signal (w->signum, SIG_DFL);	1436	signal (w->signum, SIG_DFL);
1086	}	1437	}
1087		1438
1088	void	1439	void
1089	ev_idle_start (EV_P_ struct ev_idle *w)
1090	{
1091	if (ev_is_active (w))
1092	return;
1093
1094	ev_start (EV_A_ (W)w, ++idlecnt);
1095	array_needsize (idles, idlemax, idlecnt, );
1096	idles [idlecnt - 1] = w;
1097	}
1098
1099	void
1100	ev_idle_stop (EV_P_ struct ev_idle *w)
1101	{
1102	ev_clear_pending (EV_A_ (W)w);
1103	if (ev_is_active (w))
1104	return;
1105
1106	idles [w->active - 1] = idles [--idlecnt];
1107	ev_stop (EV_A_ (W)w);
1108	}
1109
1110	void
1111	ev_prepare_start (EV_P_ struct ev_prepare *w)
1112	{
1113	if (ev_is_active (w))
1114	return;
1115
1116	ev_start (EV_A_ (W)w, ++preparecnt);
1117	array_needsize (prepares, preparemax, preparecnt, );
1118	prepares [preparecnt - 1] = w;
1119	}
1120
1121	void
1122	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1123	{
1124	ev_clear_pending (EV_A_ (W)w);
1125	if (ev_is_active (w))
1126	return;
1127
1128	prepares [w->active - 1] = prepares [--preparecnt];
1129	ev_stop (EV_A_ (W)w);
1130	}
1131
1132	void
1133	ev_check_start (EV_P_ struct ev_check *w)
1134	{
1135	if (ev_is_active (w))
1136	return;
1137
1138	ev_start (EV_A_ (W)w, ++checkcnt);
1139	array_needsize (checks, checkmax, checkcnt, );
1140	checks [checkcnt - 1] = w;
1141	}
1142
1143	void
1144	ev_check_stop (EV_P_ struct ev_check *w)
1145	{
1146	ev_clear_pending (EV_A_ (W)w);
1147	if (ev_is_active (w))
1148	return;
1149
1150	checks [w->active - 1] = checks [--checkcnt];
1151	ev_stop (EV_A_ (W)w);
1152	}
1153
1154	void
1155	ev_child_start (EV_P_ struct ev_child *w)	1440	ev_child_start (EV_P_ struct ev_child *w)
1156	{	1441	{
		1442	#if EV_MULTIPLICITY
		1443	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1444	#endif
1157	if (ev_is_active (w))	1445	if (ev_is_active (w))
1158	return;	1446	return;
1159		1447
1160	ev_start (EV_A_ (W)w, 1);	1448	ev_start (EV_A_ (W)w, 1);
1161	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1449	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1188	void (cb)(int revents, void arg) = once->cb;	1476	void (cb)(int revents, void arg) = once->cb;
1189	void *arg = once->arg;	1477	void *arg = once->arg;
1190		1478
1191	ev_io_stop (EV_A_ &once->io);	1479	ev_io_stop (EV_A_ &once->io);
1192	ev_timer_stop (EV_A_ &once->to);	1480	ev_timer_stop (EV_A_ &once->to);
1193	free (once);	1481	ev_free (once);
1194		1482
1195	cb (revents, arg);	1483	cb (revents, arg);
1196	}	1484	}
1197		1485
1198	static void	1486	static void
…		…
1208	}	1496	}
1209		1497
1210	void	1498	void
1211	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1499	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1212	{	1500	{
1213	struct ev_once *once = malloc (sizeof (struct ev_once));	1501	struct ev_once *once = ev_malloc (sizeof (struct ev_once));
1214		1502
1215	if (!once)	1503	if (!once)
1216	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1504	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1217	else	1505	else
1218	{	1506	{
…		…
1233	ev_timer_start (EV_A_ &once->to);	1521	ev_timer_start (EV_A_ &once->to);
1234	}	1522	}
1235	}	1523	}
1236	}	1524	}
1237		1525
1238	/*****************************************************************************/
1239
1240	#if 0
1241
1242	struct ev_io wio;
1243
1244	static void
1245	sin_cb (struct ev_io *w, int revents)
1246	{
1247	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1248	}
1249
1250	static void
1251	ocb (struct ev_timer *w, int revents)
1252	{
1253	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1254	ev_timer_stop (w);
1255	ev_timer_start (w);
1256	}
1257
1258	static void
1259	scb (struct ev_signal *w, int revents)
1260	{
1261	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1262	ev_io_stop (&wio);
1263	ev_io_start (&wio);
1264	}
1265
1266	static void
1267	gcb (struct ev_signal *w, int revents)
1268	{
1269	fprintf (stderr, "generic %x\n", revents);
1270
1271	}
1272
1273	int main (void)
1274	{
1275	ev_init (0);
1276
1277	ev_io_init (&wio, sin_cb, 0, EV_READ);
1278	ev_io_start (&wio);
1279
1280	struct ev_timer t[10000];
1281
1282	#if 0
1283	int i;
1284	for (i = 0; i < 10000; ++i)
1285	{
1286	struct ev_timer *w = t + i;
1287	ev_watcher_init (w, ocb, i);
1288	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1289	ev_timer_start (w);
1290	if (drand48 () < 0.5)
1291	ev_timer_stop (w);
1292	}
1293	#endif
1294
1295	struct ev_timer t1;
1296	ev_timer_init (&t1, ocb, 5, 10);
1297	ev_timer_start (&t1);
1298
1299	struct ev_signal sig;
1300	ev_signal_init (&sig, scb, SIGQUIT);
1301	ev_signal_start (&sig);
1302
1303	struct ev_check cw;
1304	ev_check_init (&cw, gcb);
1305	ev_check_start (&cw);
1306
1307	struct ev_idle iw;
1308	ev_idle_init (&iw, gcb);
1309	ev_idle_start (&iw);
1310
1311	ev_loop (0);
1312
1313	return 0;
1314	}
1315
1316	#endif
1317
1318
1319
1320

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Comparing libev/ev.c (file contents): Revision 1.53 by root, Sat Nov 3 22:31:11 2007 UTC vs. Revision 1.73 by root, Tue Nov 6 16:27:10 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.53 by root, Sat Nov 3 22:31:11 2007 UTC vs.
Revision 1.73 by root, Tue Nov 6 16:27:10 2007 UTC