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

Comparing libev/ev.c (file contents):
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs.
Revision 1.77 by root, Thu Nov 8 00:44:17 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
…		…
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
118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119		152
		153	#include "ev_win32.c"
		154
120	/*****************************************************************************/	155	/*****************************************************************************/
121		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
122	typedef struct	205	typedef struct
123	{	206	{
124	struct ev_watcher_list *head;	207	WL head;
125	unsigned char events;	208	unsigned char events;
126	unsigned char reify;	209	unsigned char reify;
127	} ANFD;	210	} ANFD;
128		211
129	typedef struct	212	typedef struct
130	{	213	{
131	W w;	214	W w;
132	int events;	215	int events;
133	} ANPENDING;	216	} ANPENDING;
134		217
135	#ifdef EV_MULTIPLICITY	218	#if EV_MULTIPLICITY
136		219
137	struct ev_loop	220	struct ev_loop
138	{	221	{
139	# define VAR(name,decl) decl;	222	# define VAR(name,decl) decl;
140	# include "ev_vars.h"	223	# include "ev_vars.h"
…		…
185	ev_now (EV_P)	268	ev_now (EV_P)
186	{	269	{
187	return rt_now;	270	return rt_now;
188	}	271	}
189		272
190	#define array_roundsize(base,n) ((n) \| 4 & ~3)	273	#define array_roundsize(type,n) ((n) \| 4 & ~3)
191		274
192	#define array_needsize(base,cur,cnt,init) \	275	#define array_needsize(type,base,cur,cnt,init) \
193	if (expect_false ((cnt) > cur)) \	276	if (expect_false ((cnt) > cur)) \
194	{ \	277	{ \
195	int newcnt = cur; \	278	int newcnt = cur; \
196	do \	279	do \
197	{ \	280	{ \
198	newcnt = array_roundsize (base, newcnt << 1); \	281	newcnt = array_roundsize (type, newcnt << 1); \
199	} \	282	} \
200	while ((cnt) > newcnt); \	283	while ((cnt) > newcnt); \
201	\	284	\
202	base = realloc (base, sizeof (base) (newcnt)); \	285	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
203	init (base + cur, newcnt - cur); \	286	init (base + cur, newcnt - cur); \
204	cur = newcnt; \	287	cur = newcnt; \
205	}	288	}
		289
		290	#define array_slim(type,stem) \
		291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		292	{ \
		293	stem ## max = array_roundsize (stem ## cnt >> 1); \
		294	base = (type )ev_realloc (base, sizeof (type) (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;
206		305
207	/*****************************************************************************/	306	/*****************************************************************************/
208		307
209	static void	308	static void
210	anfds_init (ANFD *base, int count)	309	anfds_init (ANFD *base, int count)
…		…
227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	326	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
228	return;	327	return;
229	}	328	}
230		329
231	w->pending = ++pendingcnt [ABSPRI (w)];	330	w->pending = ++pendingcnt [ABSPRI (w)];
232	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	331	array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
233	pendings [ABSPRI (w)][w->pending - 1].w = w;	332	pendings [ABSPRI (w)][w->pending - 1].w = w;
234	pendings [ABSPRI (w)][w->pending - 1].events = events;	333	pendings [ABSPRI (w)][w->pending - 1].events = events;
235	}	334	}
236		335
237	static void	336	static void
…		…
276	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)
277	events \|= w->events;	376	events \|= w->events;
278		377
279	anfd->reify = 0;	378	anfd->reify = 0;
280		379
281	if (anfd->events != events)
282	{
283	method_modify (EV_A_ fd, anfd->events, events);	380	method_modify (EV_A_ fd, anfd->events, events);
284	anfd->events = events;	381	anfd->events = events;
285	}
286	}	382	}
287		383
288	fdchangecnt = 0;	384	fdchangecnt = 0;
289	}	385	}
290		386
291	static void	387	static void
292	fd_change (EV_P_ int fd)	388	fd_change (EV_P_ int fd)
293	{	389	{
294	if (anfds [fd].reify \|\| fdchangecnt < 0)	390	if (anfds [fd].reify)
295	return;	391	return;
296		392
297	anfds [fd].reify = 1;	393	anfds [fd].reify = 1;
298		394
299	++fdchangecnt;	395	++fdchangecnt;
300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	396	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
301	fdchanges [fdchangecnt - 1] = fd;	397	fdchanges [fdchangecnt - 1] = fd;
302	}	398	}
303		399
304	static void	400	static void
305	fd_kill (EV_P_ int fd)	401	fd_kill (EV_P_ int fd)
…		…
311	ev_io_stop (EV_A_ w);	407	ev_io_stop (EV_A_ w);
312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	408	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
313	}	409	}
314	}	410	}
315		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
316	/* called on EBADF to verify fds */	422	/* called on EBADF to verify fds */
317	static void	423	static void
318	fd_ebadf (EV_P)	424	fd_ebadf (EV_P)
319	{	425	{
320	int fd;	426	int fd;
321		427
322	for (fd = 0; fd < anfdmax; ++fd)	428	for (fd = 0; fd < anfdmax; ++fd)
323	if (anfds [fd].events)	429	if (anfds [fd].events)
324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	430	if (!fd_valid (fd) == -1 && errno == EBADF)
325	fd_kill (EV_A_ fd);	431	fd_kill (EV_A_ fd);
326	}	432	}
327		433
328	/* 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 */
329	static void	435	static void
330	fd_enomem (EV_P)	436	fd_enomem (EV_P)
331	{	437	{
332	int fd = anfdmax;	438	int fd;
333		439
334	while (fd--)	440	for (fd = anfdmax; fd--; )
335	if (anfds [fd].events)	441	if (anfds [fd].events)
336	{	442	{
337	close (fd);
338	fd_kill (EV_A_ fd);	443	fd_kill (EV_A_ fd);
339	return;	444	return;
340	}	445	}
341	}	446	}
342		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
343	/*****************************************************************************/	463	/*****************************************************************************/
344		464
345	static void	465	static void
346	upheap (WT *heap, int k)	466	upheap (WT *heap, int k)
347	{	467	{
348	WT w = heap [k];	468	WT w = heap [k];
349		469
350	while (k && heap [k >> 1]->at > w->at)	470	while (k && heap [k >> 1]->at > w->at)
351	{	471	{
352	heap [k] = heap [k >> 1];	472	heap [k] = heap [k >> 1];
353	heap [k]->active = k + 1;	473	((W)heap [k])->active = k + 1;
354	k >>= 1;	474	k >>= 1;
355	}	475	}
356		476
357	heap [k] = w;	477	heap [k] = w;
358	heap [k]->active = k + 1;	478	((W)heap [k])->active = k + 1;
359		479
360	}	480	}
361		481
362	static void	482	static void
363	downheap (WT *heap, int N, int k)	483	downheap (WT *heap, int N, int k)
…		…
373		493
374	if (w->at <= heap [j]->at)	494	if (w->at <= heap [j]->at)
375	break;	495	break;
376		496
377	heap [k] = heap [j];	497	heap [k] = heap [j];
378	heap [k]->active = k + 1;	498	((W)heap [k])->active = k + 1;
379	k = j;	499	k = j;
380	}	500	}
381		501
382	heap [k] = w;	502	heap [k] = w;
383	heap [k]->active = k + 1;	503	((W)heap [k])->active = k + 1;
384	}	504	}
385		505
386	/*****************************************************************************/	506	/*****************************************************************************/
387		507
388	typedef struct	508	typedef struct
389	{	509	{
390	struct ev_watcher_list *head;	510	WL head;
391	sig_atomic_t volatile gotsig;	511	sig_atomic_t volatile gotsig;
392	} ANSIG;	512	} ANSIG;
393		513
394	static ANSIG *signals;	514	static ANSIG *signals;
395	static int signalmax;	515	static int signalmax;
396		516
397	static int sigpipe [2];	517	static int sigpipe [2];
398	static sig_atomic_t volatile gotsig;	518	static sig_atomic_t volatile gotsig;
		519	static struct ev_io sigev;
399		520
400	static void	521	static void
401	signals_init (ANSIG *base, int count)	522	signals_init (ANSIG *base, int count)
402	{	523	{
403	while (count--)	524	while (count--)
…		…
410	}	531	}
411		532
412	static void	533	static void
413	sighandler (int signum)	534	sighandler (int signum)
414	{	535	{
		536	#if WIN32
		537	signal (signum, sighandler);
		538	#endif
		539
415	signals [signum - 1].gotsig = 1;	540	signals [signum - 1].gotsig = 1;
416		541
417	if (!gotsig)	542	if (!gotsig)
418	{	543	{
419	int old_errno = errno;	544	int old_errno = errno;
420	gotsig = 1;	545	gotsig = 1;
		546	#ifdef WIN32
		547	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		548	#else
421	write (sigpipe [1], &signum, 1);	549	write (sigpipe [1], &signum, 1);
		550	#endif
422	errno = old_errno;	551	errno = old_errno;
423	}	552	}
424	}	553	}
425		554
426	static void	555	static void
427	sigcb (EV_P_ struct ev_io *iow, int revents)	556	sigcb (EV_P_ struct ev_io *iow, int revents)
428	{	557	{
429	struct ev_watcher_list *w;	558	WL w;
430	int signum;	559	int signum;
431		560
		561	#ifdef WIN32
		562	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		563	#else
432	read (sigpipe [0], &revents, 1);	564	read (sigpipe [0], &revents, 1);
		565	#endif
433	gotsig = 0;	566	gotsig = 0;
434		567
435	for (signum = signalmax; signum--; )	568	for (signum = signalmax; signum--; )
436	if (signals [signum].gotsig)	569	if (signals [signum].gotsig)
437	{	570	{
…		…
459	ev_unref (EV_A); /* child watcher should not keep loop alive */	592	ev_unref (EV_A); /* child watcher should not keep loop alive */
460	}	593	}
461		594
462	/*****************************************************************************/	595	/*****************************************************************************/
463		596
		597	static struct ev_child *childs [PID_HASHSIZE];
		598
464	#ifndef WIN32	599	#ifndef WIN32
		600
		601	static struct ev_signal childev;
465		602
466	#ifndef WCONTINUED	603	#ifndef WCONTINUED
467	# define WCONTINUED 0	604	# define WCONTINUED 0
468	#endif	605	#endif
469		606
…		…
473	struct ev_child *w;	610	struct ev_child *w;
474		611
475	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	612	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
476	if (w->pid == pid \|\| !w->pid)	613	if (w->pid == pid \|\| !w->pid)
477	{	614	{
478	w->priority = sw->priority; /* need to do it now */	615	ev_priority (w) = ev_priority (sw); /* need to do it now */
479	w->rpid = pid;	616	w->rpid = pid;
480	w->rstatus = status;	617	w->rstatus = status;
481	event (EV_A_ (W)w, EV_CHILD);	618	event (EV_A_ (W)w, EV_CHILD);
482	}	619	}
483	}	620	}
484		621
485	static void	622	static void
…		…
505	# include "ev_kqueue.c"	642	# include "ev_kqueue.c"
506	#endif	643	#endif
507	#if EV_USE_EPOLL	644	#if EV_USE_EPOLL
508	# include "ev_epoll.c"	645	# include "ev_epoll.c"
509	#endif	646	#endif
510	#if EV_USEV_POLL	647	#if EV_USE_POLL
511	# include "ev_poll.c"	648	# include "ev_poll.c"
512	#endif	649	#endif
513	#if EV_USE_SELECT	650	#if EV_USE_SELECT
514	# include "ev_select.c"	651	# include "ev_select.c"
515	#endif	652	#endif
…		…
560	rt_now = ev_time ();	697	rt_now = ev_time ();
561	mn_now = get_clock ();	698	mn_now = get_clock ();
562	now_floor = mn_now;	699	now_floor = mn_now;
563	rtmn_diff = rt_now - mn_now;	700	rtmn_diff = rt_now - mn_now;
564		701
565	if (pipe (sigpipe))
566	return 0;
567
568	if (methods == EVMETHOD_AUTO)	702	if (methods == EVMETHOD_AUTO)
569	if (!enable_secure () && getenv ("LIBmethodS"))	703	if (!enable_secure () && getenv ("LIBEV_METHODS"))
570	methods = atoi (getenv ("LIBmethodS"));	704	methods = atoi (getenv ("LIBEV_METHODS"));
571	else	705	else
572	methods = EVMETHOD_ANY;	706	methods = EVMETHOD_ANY;
573		707
574	method = 0;	708	method = 0;
		709	#if EV_USE_WIN32
		710	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		711	#endif
575	#if EV_USE_KQUEUE	712	#if EV_USE_KQUEUE
576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	713	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
577	#endif	714	#endif
578	#if EV_USE_EPOLL	715	#if EV_USE_EPOLL
579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	716	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
580	#endif	717	#endif
581	#if EV_USEV_POLL	718	#if EV_USE_POLL
582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	719	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
583	#endif	720	#endif
584	#if EV_USE_SELECT	721	#if EV_USE_SELECT
585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	722	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
586	#endif	723	#endif
587		724
		725	ev_watcher_init (&sigev, sigcb);
		726	ev_set_priority (&sigev, EV_MAXPRI);
		727	}
		728	}
		729
		730	void
		731	loop_destroy (EV_P)
		732	{
		733	int i;
		734
		735	#if EV_USE_WIN32
		736	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		737	#endif
		738	#if EV_USE_KQUEUE
		739	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		740	#endif
		741	#if EV_USE_EPOLL
		742	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		743	#endif
		744	#if EV_USE_POLL
		745	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		746	#endif
		747	#if EV_USE_SELECT
		748	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		749	#endif
		750
		751	for (i = NUMPRI; i--; )
		752	array_free (pending, [i]);
		753
		754	/* have to use the microsoft-never-gets-it-right macro */
		755	array_free_microshit (fdchange);
		756	array_free_microshit (timer);
		757	array_free_microshit (periodic);
		758	array_free_microshit (idle);
		759	array_free_microshit (prepare);
		760	array_free_microshit (check);
		761
		762	method = 0;
		763	}
		764
		765	static void
		766	loop_fork (EV_P)
		767	{
		768	#if EV_USE_EPOLL
		769	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		770	#endif
		771	#if EV_USE_KQUEUE
		772	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		773	#endif
		774
		775	if (ev_is_active (&sigev))
		776	{
		777	/* default loop */
		778
		779	ev_ref (EV_A);
		780	ev_io_stop (EV_A_ &sigev);
		781	close (sigpipe [0]);
		782	close (sigpipe [1]);
		783
		784	while (pipe (sigpipe))
		785	syserr ("(libev) error creating pipe");
		786
		787	siginit (EV_A);
		788	}
		789
		790	postfork = 0;
		791	}
		792
		793	#if EV_MULTIPLICITY
		794	struct ev_loop *
		795	ev_loop_new (int methods)
		796	{
		797	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		798
		799	memset (loop, 0, sizeof (struct ev_loop));
		800
		801	loop_init (EV_A_ methods);
		802
		803	if (ev_method (EV_A))
		804	return loop;
		805
		806	return 0;
		807	}
		808
		809	void
		810	ev_loop_destroy (EV_P)
		811	{
		812	loop_destroy (EV_A);
		813	ev_free (loop);
		814	}
		815
		816	void
		817	ev_loop_fork (EV_P)
		818	{
		819	postfork = 1;
		820	}
		821
		822	#endif
		823
		824	#if EV_MULTIPLICITY
		825	struct ev_loop default_loop_struct;
		826	static struct ev_loop *default_loop;
		827
		828	struct ev_loop *
		829	#else
		830	static int default_loop;
		831
		832	int
		833	#endif
		834	ev_default_loop (int methods)
		835	{
		836	if (sigpipe [0] == sigpipe [1])
		837	if (pipe (sigpipe))
		838	return 0;
		839
		840	if (!default_loop)
		841	{
		842	#if EV_MULTIPLICITY
		843	struct ev_loop *loop = default_loop = &default_loop_struct;
		844	#else
		845	default_loop = 1;
		846	#endif
		847
		848	loop_init (EV_A_ methods);
		849
588	if (method)	850	if (ev_method (EV_A))
589	{	851	{
590	ev_watcher_init (&sigev, sigcb);
591	ev_set_priority (&sigev, EV_MAXPRI);
592	siginit (EV_A);	852	siginit (EV_A);
593		853
594	#ifndef WIN32	854	#ifndef WIN32
595	ev_signal_init (&childev, childcb, SIGCHLD);	855	ev_signal_init (&childev, childcb, SIGCHLD);
596	ev_set_priority (&childev, EV_MAXPRI);	856	ev_set_priority (&childev, EV_MAXPRI);
597	ev_signal_start (EV_A_ &childev);	857	ev_signal_start (EV_A_ &childev);
598	ev_unref (EV_A); /* child watcher should not keep loop alive */	858	ev_unref (EV_A); /* child watcher should not keep loop alive */
599	#endif	859	#endif
600	}	860	}
		861	else
		862	default_loop = 0;
601	}	863	}
602		864
603	return method;	865	return default_loop;
604	}	866	}
605		867
		868	void
		869	ev_default_destroy (void)
		870	{
606	#ifdef EV_MULTIPLICITY	871	#if EV_MULTIPLICITY
607		872	struct ev_loop *loop = default_loop;
608	struct ev_loop *
609	ev_loop_new (int methods)
610	{
611	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));
612
613	loop_init (EV_A_ methods);
614
615	return loop;
616	}
617
618	void
619	ev_loop_delete (EV_P)
620	{
621	/TODO/
622	free (loop);
623	}
624
625	#else
626
627	int
628	ev_init (int methods)
629	{
630	loop_init ();
631	}
632
633	#endif	873	#endif
		874
		875	#ifndef WIN32
		876	ev_ref (EV_A); /* child watcher */
		877	ev_signal_stop (EV_A_ &childev);
		878	#endif
		879
		880	ev_ref (EV_A); /* signal watcher */
		881	ev_io_stop (EV_A_ &sigev);
		882
		883	close (sigpipe [0]); sigpipe [0] = 0;
		884	close (sigpipe [1]); sigpipe [1] = 0;
		885
		886	loop_destroy (EV_A);
		887	}
		888
		889	void
		890	ev_default_fork (void)
		891	{
		892	#if EV_MULTIPLICITY
		893	struct ev_loop *loop = default_loop;
		894	#endif
		895
		896	if (method)
		897	postfork = 1;
		898	}
634		899
635	/*****************************************************************************/	900	/*****************************************************************************/
636		901
637	void	902	static int
638	ev_fork_prepare (void)	903	any_pending (EV_P)
639	{	904	{
640	/* nop */	905	int pri;
641	}
642		906
643	void	907	for (pri = NUMPRI; pri--; )
644	ev_fork_parent (void)	908	if (pendingcnt [pri])
645	{	909	return 1;
646	/* nop */
647	}
648		910
649	void	911	return 0;
650	ev_fork_child (void)
651	{
652	/TODO/
653	#if !EV_MULTIPLICITY
654	#if EV_USE_EPOLL
655	if (method == EVMETHOD_EPOLL)
656	epoll_postfork_child (EV_A);
657	#endif
658
659	ev_io_stop (EV_A_ &sigev);
660	close (sigpipe [0]);
661	close (sigpipe [1]);
662	pipe (sigpipe);
663	siginit (EV_A);
664	#endif
665	}	912	}
666
667	/*****************************************************************************/
668		913
669	static void	914	static void
670	call_pending (EV_P)	915	call_pending (EV_P)
671	{	916	{
672	int pri;	917	int pri;
…		…
685	}	930	}
686		931
687	static void	932	static void
688	timers_reify (EV_P)	933	timers_reify (EV_P)
689	{	934	{
690	while (timercnt && timers [0]->at <= mn_now)	935	while (timercnt && ((WT)timers [0])->at <= mn_now)
691	{	936	{
692	struct ev_timer *w = timers [0];	937	struct ev_timer *w = timers [0];
		938
		939	assert (("inactive timer on timer heap detected", ev_is_active (w)));
693		940
694	/* first reschedule or stop timer */	941	/* first reschedule or stop timer */
695	if (w->repeat)	942	if (w->repeat)
696	{	943	{
697	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	944	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
698	w->at = mn_now + w->repeat;	945	((WT)w)->at = mn_now + w->repeat;
699	downheap ((WT *)timers, timercnt, 0);	946	downheap ((WT *)timers, timercnt, 0);
700	}	947	}
701	else	948	else
702	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	949	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
703		950
…		…
706	}	953	}
707		954
708	static void	955	static void
709	periodics_reify (EV_P)	956	periodics_reify (EV_P)
710	{	957	{
711	while (periodiccnt && periodics [0]->at <= rt_now)	958	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
712	{	959	{
713	struct ev_periodic *w = periodics [0];	960	struct ev_periodic *w = periodics [0];
714		961
		962	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		963
715	/* first reschedule or stop timer */	964	/* first reschedule or stop timer */
716	if (w->interval)	965	if (w->reschedule_cb)
717	{	966	{
		967	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		968
		969	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		970	downheap ((WT *)periodics, periodiccnt, 0);
		971	}
		972	else if (w->interval)
		973	{
718	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	974	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
719	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	975	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
720	downheap ((WT *)periodics, periodiccnt, 0);	976	downheap ((WT *)periodics, periodiccnt, 0);
721	}	977	}
722	else	978	else
723	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	979	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
724		980
…		…
734	/* adjust periodics after time jump */	990	/* adjust periodics after time jump */
735	for (i = 0; i < periodiccnt; ++i)	991	for (i = 0; i < periodiccnt; ++i)
736	{	992	{
737	struct ev_periodic *w = periodics [i];	993	struct ev_periodic *w = periodics [i];
738		994
		995	if (w->reschedule_cb)
		996	((WT)w)->at = w->reschedule_cb (w, rt_now);
739	if (w->interval)	997	else if (w->interval)
740	{
741	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	998	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
742
743	if (fabs (diff) >= 1e-4)
744	{
745	ev_periodic_stop (EV_A_ w);
746	ev_periodic_start (EV_A_ w);
747
748	i = 0; /* restart loop, inefficient, but time jumps should be rare */
749	}
750	}
751	}	999	}
		1000
		1001	/* now rebuild the heap */
		1002	for (i = periodiccnt >> 1; i--; )
		1003	downheap ((WT *)periodics, periodiccnt, i);
752	}	1004	}
753		1005
754	inline int	1006	inline int
755	time_update_monotonic (EV_P)	1007	time_update_monotonic (EV_P)
756	{	1008	{
…		…
807	{	1059	{
808	periodics_reschedule (EV_A);	1060	periodics_reschedule (EV_A);
809		1061
810	/* adjust timers. this is easy, as the offset is the same for all */	1062	/* adjust timers. this is easy, as the offset is the same for all */
811	for (i = 0; i < timercnt; ++i)	1063	for (i = 0; i < timercnt; ++i)
812	timers [i]->at += rt_now - mn_now;	1064	((WT)timers [i])->at += rt_now - mn_now;
813	}	1065	}
814		1066
815	mn_now = rt_now;	1067	mn_now = rt_now;
816	}	1068	}
817	}	1069	}
…		…
843	{	1095	{
844	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1096	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
845	call_pending (EV_A);	1097	call_pending (EV_A);
846	}	1098	}
847		1099
		1100	/* we might have forked, so reify kernel state if necessary */
		1101	if (expect_false (postfork))
		1102	loop_fork (EV_A);
		1103
848	/* update fd-related kernel structures */	1104	/* update fd-related kernel structures */
849	fd_reify (EV_A);	1105	fd_reify (EV_A);
850		1106
851	/* calculate blocking time */	1107	/* calculate blocking time */
852		1108
853	/* we only need this for !monotonic clockor timers, but as we basically	1109	/* we only need this for !monotonic clock or timers, but as we basically
854	always have timers, we just calculate it always */	1110	always have timers, we just calculate it always */
855	#if EV_USE_MONOTONIC	1111	#if EV_USE_MONOTONIC
856	if (expect_true (have_monotonic))	1112	if (expect_true (have_monotonic))
857	time_update_monotonic (EV_A);	1113	time_update_monotonic (EV_A);
858	else	1114	else
…		…
868	{	1124	{
869	block = MAX_BLOCKTIME;	1125	block = MAX_BLOCKTIME;
870		1126
871	if (timercnt)	1127	if (timercnt)
872	{	1128	{
873	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1129	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
874	if (block > to) block = to;	1130	if (block > to) block = to;
875	}	1131	}
876		1132
877	if (periodiccnt)	1133	if (periodiccnt)
878	{	1134	{
879	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1135	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
880	if (block > to) block = to;	1136	if (block > to) block = to;
881	}	1137	}
882		1138
883	if (block < 0.) block = 0.;	1139	if (block < 0.) block = 0.;
884	}	1140	}
…		…
891	/* queue pending timers and reschedule them */	1147	/* queue pending timers and reschedule them */
892	timers_reify (EV_A); /* relative timers called last */	1148	timers_reify (EV_A); /* relative timers called last */
893	periodics_reify (EV_A); /* absolute timers called first */	1149	periodics_reify (EV_A); /* absolute timers called first */
894		1150
895	/* queue idle watchers unless io or timers are pending */	1151	/* queue idle watchers unless io or timers are pending */
896	if (!pendingcnt)	1152	if (idlecnt && !any_pending (EV_A))
897	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1153	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
898		1154
899	/* queue check watchers, to be executed first */	1155	/* queue check watchers, to be executed first */
900	if (checkcnt)	1156	if (checkcnt)
901	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1157	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
976	return;	1232	return;
977		1233
978	assert (("ev_io_start called with negative fd", fd >= 0));	1234	assert (("ev_io_start called with negative fd", fd >= 0));
979		1235
980	ev_start (EV_A_ (W)w, 1);	1236	ev_start (EV_A_ (W)w, 1);
981	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1237	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
982	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1238	wlist_add ((WL *)&anfds[fd].head, (WL)w);
983		1239
984	fd_change (EV_A_ fd);	1240	fd_change (EV_A_ fd);
985	}	1241	}
986		1242
…		…
1001	ev_timer_start (EV_P_ struct ev_timer *w)	1257	ev_timer_start (EV_P_ struct ev_timer *w)
1002	{	1258	{
1003	if (ev_is_active (w))	1259	if (ev_is_active (w))
1004	return;	1260	return;
1005		1261
1006	w->at += mn_now;	1262	((WT)w)->at += mn_now;
1007		1263
1008	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1264	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1009		1265
1010	ev_start (EV_A_ (W)w, ++timercnt);	1266	ev_start (EV_A_ (W)w, ++timercnt);
1011	array_needsize (timers, timermax, timercnt, );	1267	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1012	timers [timercnt - 1] = w;	1268	timers [timercnt - 1] = w;
1013	upheap ((WT *)timers, timercnt - 1);	1269	upheap ((WT *)timers, timercnt - 1);
		1270
		1271	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1014	}	1272	}
1015		1273
1016	void	1274	void
1017	ev_timer_stop (EV_P_ struct ev_timer *w)	1275	ev_timer_stop (EV_P_ struct ev_timer *w)
1018	{	1276	{
1019	ev_clear_pending (EV_A_ (W)w);	1277	ev_clear_pending (EV_A_ (W)w);
1020	if (!ev_is_active (w))	1278	if (!ev_is_active (w))
1021	return;	1279	return;
1022		1280
		1281	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1282
1023	if (w->active < timercnt--)	1283	if (((W)w)->active < timercnt--)
1024	{	1284	{
1025	timers [w->active - 1] = timers [timercnt];	1285	timers [((W)w)->active - 1] = timers [timercnt];
1026	downheap ((WT *)timers, timercnt, w->active - 1);	1286	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1027	}	1287	}
1028		1288
1029	w->at = w->repeat;	1289	((WT)w)->at = w->repeat;
1030		1290
1031	ev_stop (EV_A_ (W)w);	1291	ev_stop (EV_A_ (W)w);
1032	}	1292	}
1033		1293
1034	void	1294	void
…		…
1036	{	1296	{
1037	if (ev_is_active (w))	1297	if (ev_is_active (w))
1038	{	1298	{
1039	if (w->repeat)	1299	if (w->repeat)
1040	{	1300	{
1041	w->at = mn_now + w->repeat;	1301	((WT)w)->at = mn_now + w->repeat;
1042	downheap ((WT *)timers, timercnt, w->active - 1);	1302	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1043	}	1303	}
1044	else	1304	else
1045	ev_timer_stop (EV_A_ w);	1305	ev_timer_stop (EV_A_ w);
1046	}	1306	}
1047	else if (w->repeat)	1307	else if (w->repeat)
…		…
1052	ev_periodic_start (EV_P_ struct ev_periodic *w)	1312	ev_periodic_start (EV_P_ struct ev_periodic *w)
1053	{	1313	{
1054	if (ev_is_active (w))	1314	if (ev_is_active (w))
1055	return;	1315	return;
1056		1316
		1317	if (w->reschedule_cb)
		1318	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1319	else if (w->interval)
		1320	{
1057	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1321	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1058
1059	/* this formula differs from the one in periodic_reify because we do not always round up */	1322	/* this formula differs from the one in periodic_reify because we do not always round up */
1060	if (w->interval)
1061	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1323	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1324	}
1062		1325
1063	ev_start (EV_A_ (W)w, ++periodiccnt);	1326	ev_start (EV_A_ (W)w, ++periodiccnt);
1064	array_needsize (periodics, periodicmax, periodiccnt, );	1327	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1065	periodics [periodiccnt - 1] = w;	1328	periodics [periodiccnt - 1] = w;
1066	upheap ((WT *)periodics, periodiccnt - 1);	1329	upheap ((WT *)periodics, periodiccnt - 1);
		1330
		1331	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1067	}	1332	}
1068		1333
1069	void	1334	void
1070	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1335	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1071	{	1336	{
1072	ev_clear_pending (EV_A_ (W)w);	1337	ev_clear_pending (EV_A_ (W)w);
1073	if (!ev_is_active (w))	1338	if (!ev_is_active (w))
1074	return;	1339	return;
1075		1340
		1341	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1342
1076	if (w->active < periodiccnt--)	1343	if (((W)w)->active < periodiccnt--)
1077	{	1344	{
1078	periodics [w->active - 1] = periodics [periodiccnt];	1345	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1079	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1346	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1080	}	1347	}
1081		1348
		1349	ev_stop (EV_A_ (W)w);
		1350	}
		1351
		1352	void
		1353	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1354	{
		1355	ev_periodic_stop (EV_A_ w);
		1356	ev_periodic_start (EV_A_ w);
		1357	}
		1358
		1359	void
		1360	ev_idle_start (EV_P_ struct ev_idle *w)
		1361	{
		1362	if (ev_is_active (w))
		1363	return;
		1364
		1365	ev_start (EV_A_ (W)w, ++idlecnt);
		1366	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1367	idles [idlecnt - 1] = w;
		1368	}
		1369
		1370	void
		1371	ev_idle_stop (EV_P_ struct ev_idle *w)
		1372	{
		1373	ev_clear_pending (EV_A_ (W)w);
		1374	if (ev_is_active (w))
		1375	return;
		1376
		1377	idles [((W)w)->active - 1] = idles [--idlecnt];
		1378	ev_stop (EV_A_ (W)w);
		1379	}
		1380
		1381	void
		1382	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1383	{
		1384	if (ev_is_active (w))
		1385	return;
		1386
		1387	ev_start (EV_A_ (W)w, ++preparecnt);
		1388	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1389	prepares [preparecnt - 1] = w;
		1390	}
		1391
		1392	void
		1393	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1394	{
		1395	ev_clear_pending (EV_A_ (W)w);
		1396	if (ev_is_active (w))
		1397	return;
		1398
		1399	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1400	ev_stop (EV_A_ (W)w);
		1401	}
		1402
		1403	void
		1404	ev_check_start (EV_P_ struct ev_check *w)
		1405	{
		1406	if (ev_is_active (w))
		1407	return;
		1408
		1409	ev_start (EV_A_ (W)w, ++checkcnt);
		1410	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1411	checks [checkcnt - 1] = w;
		1412	}
		1413
		1414	void
		1415	ev_check_stop (EV_P_ struct ev_check *w)
		1416	{
		1417	ev_clear_pending (EV_A_ (W)w);
		1418	if (ev_is_active (w))
		1419	return;
		1420
		1421	checks [((W)w)->active - 1] = checks [--checkcnt];
1082	ev_stop (EV_A_ (W)w);	1422	ev_stop (EV_A_ (W)w);
1083	}	1423	}
1084		1424
1085	#ifndef SA_RESTART	1425	#ifndef SA_RESTART
1086	# define SA_RESTART 0	1426	# define SA_RESTART 0
1087	#endif	1427	#endif
1088		1428
1089	void	1429	void
1090	ev_signal_start (EV_P_ struct ev_signal *w)	1430	ev_signal_start (EV_P_ struct ev_signal *w)
1091	{	1431	{
		1432	#if EV_MULTIPLICITY
		1433	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1434	#endif
1092	if (ev_is_active (w))	1435	if (ev_is_active (w))
1093	return;	1436	return;
1094		1437
1095	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1438	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1096		1439
1097	ev_start (EV_A_ (W)w, 1);	1440	ev_start (EV_A_ (W)w, 1);
1098	array_needsize (signals, signalmax, w->signum, signals_init);	1441	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1099	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1442	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1100		1443
1101	if (!w->next)	1444	if (!((WL)w)->next)
1102	{	1445	{
		1446	#if WIN32
		1447	signal (w->signum, sighandler);
		1448	#else
1103	struct sigaction sa;	1449	struct sigaction sa;
1104	sa.sa_handler = sighandler;	1450	sa.sa_handler = sighandler;
1105	sigfillset (&sa.sa_mask);	1451	sigfillset (&sa.sa_mask);
1106	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1452	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1107	sigaction (w->signum, &sa, 0);	1453	sigaction (w->signum, &sa, 0);
		1454	#endif
1108	}	1455	}
1109	}	1456	}
1110		1457
1111	void	1458	void
1112	ev_signal_stop (EV_P_ struct ev_signal *w)	1459	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1121	if (!signals [w->signum - 1].head)	1468	if (!signals [w->signum - 1].head)
1122	signal (w->signum, SIG_DFL);	1469	signal (w->signum, SIG_DFL);
1123	}	1470	}
1124		1471
1125	void	1472	void
1126	ev_idle_start (EV_P_ struct ev_idle *w)
1127	{
1128	if (ev_is_active (w))
1129	return;
1130
1131	ev_start (EV_A_ (W)w, ++idlecnt);
1132	array_needsize (idles, idlemax, idlecnt, );
1133	idles [idlecnt - 1] = w;
1134	}
1135
1136	void
1137	ev_idle_stop (EV_P_ struct ev_idle *w)
1138	{
1139	ev_clear_pending (EV_A_ (W)w);
1140	if (ev_is_active (w))
1141	return;
1142
1143	idles [w->active - 1] = idles [--idlecnt];
1144	ev_stop (EV_A_ (W)w);
1145	}
1146
1147	void
1148	ev_prepare_start (EV_P_ struct ev_prepare *w)
1149	{
1150	if (ev_is_active (w))
1151	return;
1152
1153	ev_start (EV_A_ (W)w, ++preparecnt);
1154	array_needsize (prepares, preparemax, preparecnt, );
1155	prepares [preparecnt - 1] = w;
1156	}
1157
1158	void
1159	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1160	{
1161	ev_clear_pending (EV_A_ (W)w);
1162	if (ev_is_active (w))
1163	return;
1164
1165	prepares [w->active - 1] = prepares [--preparecnt];
1166	ev_stop (EV_A_ (W)w);
1167	}
1168
1169	void
1170	ev_check_start (EV_P_ struct ev_check *w)
1171	{
1172	if (ev_is_active (w))
1173	return;
1174
1175	ev_start (EV_A_ (W)w, ++checkcnt);
1176	array_needsize (checks, checkmax, checkcnt, );
1177	checks [checkcnt - 1] = w;
1178	}
1179
1180	void
1181	ev_check_stop (EV_P_ struct ev_check *w)
1182	{
1183	ev_clear_pending (EV_A_ (W)w);
1184	if (ev_is_active (w))
1185	return;
1186
1187	checks [w->active - 1] = checks [--checkcnt];
1188	ev_stop (EV_A_ (W)w);
1189	}
1190
1191	void
1192	ev_child_start (EV_P_ struct ev_child *w)	1473	ev_child_start (EV_P_ struct ev_child *w)
1193	{	1474	{
		1475	#if EV_MULTIPLICITY
		1476	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1477	#endif
1194	if (ev_is_active (w))	1478	if (ev_is_active (w))
1195	return;	1479	return;
1196		1480
1197	ev_start (EV_A_ (W)w, 1);	1481	ev_start (EV_A_ (W)w, 1);
1198	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1482	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1225	void (cb)(int revents, void arg) = once->cb;	1509	void (cb)(int revents, void arg) = once->cb;
1226	void *arg = once->arg;	1510	void *arg = once->arg;
1227		1511
1228	ev_io_stop (EV_A_ &once->io);	1512	ev_io_stop (EV_A_ &once->io);
1229	ev_timer_stop (EV_A_ &once->to);	1513	ev_timer_stop (EV_A_ &once->to);
1230	free (once);	1514	ev_free (once);
1231		1515
1232	cb (revents, arg);	1516	cb (revents, arg);
1233	}	1517	}
1234		1518
1235	static void	1519	static void
…		…
1245	}	1529	}
1246		1530
1247	void	1531	void
1248	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1532	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1249	{	1533	{
1250	struct ev_once *once = malloc (sizeof (struct ev_once));	1534	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1251		1535
1252	if (!once)	1536	if (!once)
1253	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1537	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1254	else	1538	else
1255	{	1539	{
…		…
1270	ev_timer_start (EV_A_ &once->to);	1554	ev_timer_start (EV_A_ &once->to);
1271	}	1555	}
1272	}	1556	}
1273	}	1557	}
1274		1558
1275	/*****************************************************************************/
1276
1277	#if 0
1278
1279	struct ev_io wio;
1280
1281	static void
1282	sin_cb (struct ev_io *w, int revents)
1283	{
1284	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1285	}
1286
1287	static void
1288	ocb (struct ev_timer *w, int revents)
1289	{
1290	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1291	ev_timer_stop (w);
1292	ev_timer_start (w);
1293	}
1294
1295	static void
1296	scb (struct ev_signal *w, int revents)
1297	{
1298	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1299	ev_io_stop (&wio);
1300	ev_io_start (&wio);
1301	}
1302
1303	static void
1304	gcb (struct ev_signal *w, int revents)
1305	{
1306	fprintf (stderr, "generic %x\n", revents);
1307
1308	}
1309
1310	int main (void)
1311	{
1312	ev_init (0);
1313
1314	ev_io_init (&wio, sin_cb, 0, EV_READ);
1315	ev_io_start (&wio);
1316
1317	struct ev_timer t[10000];
1318
1319	#if 0
1320	int i;
1321	for (i = 0; i < 10000; ++i)
1322	{
1323	struct ev_timer *w = t + i;
1324	ev_watcher_init (w, ocb, i);
1325	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1326	ev_timer_start (w);
1327	if (drand48 () < 0.5)
1328	ev_timer_stop (w);
1329	}
1330	#endif
1331
1332	struct ev_timer t1;
1333	ev_timer_init (&t1, ocb, 5, 10);
1334	ev_timer_start (&t1);
1335
1336	struct ev_signal sig;
1337	ev_signal_init (&sig, scb, SIGQUIT);
1338	ev_signal_start (&sig);
1339
1340	struct ev_check cw;
1341	ev_check_init (&cw, gcb);
1342	ev_check_start (&cw);
1343
1344	struct ev_idle iw;
1345	ev_idle_init (&iw, gcb);
1346	ev_idle_start (&iw);
1347
1348	ev_loop (0);
1349
1350	return 0;
1351	}
1352
1353	#endif
1354
1355
1356
1357

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Comparing libev/ev.c (file contents): Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs. Revision 1.77 by root, Thu Nov 8 00:44:17 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs.
Revision 1.77 by root, Thu Nov 8 00:44:17 2007 UTC