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

Comparing libev/ev.c (file contents):
Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC vs.
Revision 1.131 by root, Fri Nov 23 05:43:45 2007 UTC

…		…
41	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
42	# endif	42	# endif
43	# ifndef EV_USE_REALTIME	43	# ifndef EV_USE_REALTIME
44	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
45	# endif	45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
46	# endif	53	# endif
47		54
48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)	55	# ifndef EV_USE_SELECT
		56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
49	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
50	# endif	61	# endif
51		62
52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)	63	# ifndef EV_USE_POLL
		64	# if HAVE_POLL && HAVE_POLL_H
53	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
54	# endif	69	# endif
55		70
56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)	71	# ifndef EV_USE_EPOLL
		72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
58	# endif	77	# endif
59		78
		79	# ifndef EV_USE_KQUEUE
60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
62	# endif	93	# endif
63		94
64	#endif	95	#endif
65		96
66	#include <math.h>	97	#include <math.h>
…		…
75	#include <sys/types.h>	106	#include <sys/types.h>
76	#include <time.h>	107	#include <time.h>
77		108
78	#include <signal.h>	109	#include <signal.h>
79		110
80	#ifndef WIN32	111	#ifndef _WIN32
81	# include <unistd.h>	112	# include <unistd.h>
82	# include <sys/time.h>	113	# include <sys/time.h>
83	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
84	#endif	120	# endif
		121	#endif
		122
85	/**/	123	/**/
86		124
87	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
88	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
89	#endif	131	#endif
90		132
91	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
92	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
93	#endif	135	#endif
94		136
95	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
97	#endif	143	#endif
98		144
99	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
100	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
101	#endif	147	#endif
102		148
103	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
104	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
105	#endif	151	#endif
106		152
107	#ifndef EV_USE_WIN32
108	# ifdef WIN32
109	# define EV_USE_WIN32 0 /* it does not exist, use select */
110	# undef EV_USE_SELECT
111	# define EV_USE_SELECT 1
112	# else
113	# define EV_USE_WIN32 0
114	# endif
115	#endif
116
117	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
118	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
119	#endif	155	#endif
120		156
121	/**/	157	/**/
122		158
123	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
128	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
129	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
130	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
131	#endif	167	#endif
132		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
133	/**/	173	/**/
134		174
135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	175	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	176	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	177	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	178	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
139		179
140	#ifdef EV_H	180	#ifdef EV_H
141	# include EV_H	181	# include EV_H
142	#else	182	#else
143	# include "ev.h"	183	# include "ev.h"
144	#endif	184	#endif
145		185
146	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
147	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
148	# define inline inline	188	# define inline static inline
149	#else	189	#else
150	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
151	# define inline static	191	# define inline static
152	#endif	192	#endif
153		193
…		…
155	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
156		196
157	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
158	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
159		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
160	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
161	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
162	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
163		206
164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
165		208
		209	#ifdef _WIN32
166	#include "ev_win32.c"	210	# include "ev_win32.c"
		211	#endif
167		212
168	/*****************************************************************************/	213	/*****************************************************************************/
169		214
170	static void (syserr_cb)(const char msg);	215	static void (syserr_cb)(const char msg);
171		216
…		…
218	typedef struct	263	typedef struct
219	{	264	{
220	WL head;	265	WL head;
221	unsigned char events;	266	unsigned char events;
222	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
223	} ANFD;	271	} ANFD;
224		272
225	typedef struct	273	typedef struct
226	{	274	{
227	W w;	275	W w;
…		…
231	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
232		280
233	struct ev_loop	281	struct ev_loop
234	{	282	{
235	ev_tstamp ev_rt_now;	283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
236	#define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
237	#include "ev_vars.h"	286	#include "ev_vars.h"
238	#undef VAR	287	#undef VAR
239	};	288	};
240	#include "ev_wrap.h"	289	#include "ev_wrap.h"
241		290
242	struct ev_loop default_loop_struct;	291	static struct ev_loop default_loop_struct;
243	static struct ev_loop *default_loop;	292	struct ev_loop *ev_default_loop_ptr;
244		293
245	#else	294	#else
246		295
247	ev_tstamp ev_rt_now;	296	ev_tstamp ev_rt_now;
248	#define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
249	#include "ev_vars.h"	298	#include "ev_vars.h"
250	#undef VAR	299	#undef VAR
251		300
252	static int default_loop;	301	static int ev_default_loop_ptr;
253		302
254	#endif	303	#endif
255		304
256	/*****************************************************************************/	305	/*****************************************************************************/
257		306
…		…
290	{	339	{
291	return ev_rt_now;	340	return ev_rt_now;
292	}	341	}
293	#endif	342	#endif
294		343
295	#define array_roundsize(type,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
296		345
297	#define array_needsize(type,base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
298	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
299	{ \	348	{ \
300	int newcnt = cur; \	349	int newcnt = cur; \
…		…
315	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
316	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
317	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
318	}	367	}
319		368
320	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
321	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
322	#define array_free_microshit(stem) \
323	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
324
325	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
326	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
327		371
328	/*****************************************************************************/	372	/*****************************************************************************/
329		373
…		…
343	void	387	void
344	ev_feed_event (EV_P_ void *w, int revents)	388	ev_feed_event (EV_P_ void *w, int revents)
345	{	389	{
346	W w_ = (W)w;	390	W w_ = (W)w;
347		391
348	if (w_->pending)	392	if (expect_false (w_->pending))
349	{	393	{
350	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
351	return;	395	return;
352	}	396	}
353		397
354	w_->pending = ++pendingcnt [ABSPRI (w_)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
355	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
356	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
357	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
358	}	402	}
359		403
360	static void	404	static void
…		…
387	fd_event (EV_A_ fd, revents);	431	fd_event (EV_A_ fd, revents);
388	}	432	}
389		433
390	/*****************************************************************************/	434	/*****************************************************************************/
391		435
392	static void	436	inline void
393	fd_reify (EV_P)	437	fd_reify (EV_P)
394	{	438	{
395	int i;	439	int i;
396		440
397	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
403	int events = 0;	447	int events = 0;
404		448
405	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	449	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
406	events \|= w->events;	450	events \|= w->events;
407		451
		452	#if EV_SELECT_IS_WINSOCKET
		453	if (events)
		454	{
		455	unsigned long argp;
		456	anfd->handle = _get_osfhandle (fd);
		457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		458	}
		459	#endif
		460
408	anfd->reify = 0;	461	anfd->reify = 0;
409		462
410	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
411	anfd->events = events;	464	anfd->events = events;
412	}	465	}
413		466
414	fdchangecnt = 0;	467	fdchangecnt = 0;
415	}	468	}
416		469
417	static void	470	static void
418	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
419	{	472	{
420	if (anfds [fd].reify)	473	if (expect_false (anfds [fd].reify))
421	return;	474	return;
422		475
423	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
424		477
425	++fdchangecnt;	478	++fdchangecnt;
426	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
427	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
428	}	481	}
429		482
430	static void	483	static void
431	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
437	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
438	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	491	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
439	}	492	}
440	}	493	}
441		494
442	static int	495	inline int
443	fd_valid (int fd)	496	fd_valid (int fd)
444	{	497	{
445	#ifdef WIN32	498	#ifdef _WIN32
446	return !!win32_get_osfhandle (fd);	499	return _get_osfhandle (fd) != -1;
447	#else	500	#else
448	return fcntl (fd, F_GETFD) != -1;	501	return fcntl (fd, F_GETFD) != -1;
449	#endif	502	#endif
450	}	503	}
451		504
…		…
473	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
474	return;	527	return;
475	}	528	}
476	}	529	}
477		530
478	/* usually called after fork if method needs to re-arm all fds from scratch */	531	/* usually called after fork if backend needs to re-arm all fds from scratch */
479	static void	532	static void
480	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
481	{	534	{
482	int fd;	535	int fd;
483		536
…		…
532	heap [k] = w;	585	heap [k] = w;
533	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
534	}	587	}
535		588
536	inline void	589	inline void
537	adjustheap (WT *heap, int N, int k, ev_tstamp at)	590	adjustheap (WT *heap, int N, int k)
538	{	591	{
539	ev_tstamp old_at = heap [k]->at;	592	upheap (heap, k);
540	heap [k]->at = at;
541
542	if (old_at < at)
543	downheap (heap, N, k);	593	downheap (heap, N, k);
544	else
545	upheap (heap, k);
546	}	594	}
547		595
548	/*****************************************************************************/	596	/*****************************************************************************/
549		597
550	typedef struct	598	typedef struct
…		…
573	}	621	}
574		622
575	static void	623	static void
576	sighandler (int signum)	624	sighandler (int signum)
577	{	625	{
578	#if WIN32	626	#if _WIN32
579	signal (signum, sighandler);	627	signal (signum, sighandler);
580	#endif	628	#endif
581		629
582	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
583		631
584	if (!gotsig)	632	if (!gotsig)
585	{	633	{
586	int old_errno = errno;	634	int old_errno = errno;
587	gotsig = 1;	635	gotsig = 1;
588	#ifdef WIN32
589	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
590	#else
591	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
592	#endif
593	errno = old_errno;	637	errno = old_errno;
594	}	638	}
595	}	639	}
596		640
597	void	641	void
598	ev_feed_signal_event (EV_P_ int signum)	642	ev_feed_signal_event (EV_P_ int signum)
599	{	643	{
600	WL w;	644	WL w;
601		645
602	#if EV_MULTIPLICITY	646	#if EV_MULTIPLICITY
603	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	647	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
604	#endif	648	#endif
605		649
606	--signum;	650	--signum;
607		651
608	if (signum < 0 \|\| signum >= signalmax)	652	if (signum < 0 \|\| signum >= signalmax)
…		…
617	static void	661	static void
618	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
619	{	663	{
620	int signum;	664	int signum;
621		665
622	#ifdef WIN32
623	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
624	#else
625	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
626	#endif
627	gotsig = 0;	667	gotsig = 0;
628		668
629	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
630	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
631	ev_feed_signal_event (EV_A_ signum + 1);	671	ev_feed_signal_event (EV_A_ signum + 1);
632	}	672	}
633		673
634	static void	674	static void
		675	fd_intern (int fd)
		676	{
		677	#ifdef _WIN32
		678	int arg = 1;
		679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		680	#else
		681	fcntl (fd, F_SETFD, FD_CLOEXEC);
		682	fcntl (fd, F_SETFL, O_NONBLOCK);
		683	#endif
		684	}
		685
		686	static void
635	siginit (EV_P)	687	siginit (EV_P)
636	{	688	{
637	#ifndef WIN32	689	fd_intern (sigpipe [0]);
638	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
639	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
640
641	/* rather than sort out wether we really need nb, set it */
642	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
643	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
644	#endif
645		691
646	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
647	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
648	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
649	}	695	}
650		696
651	/*****************************************************************************/	697	/*****************************************************************************/
652		698
653	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
654		700
655	#ifndef WIN32	701	#ifndef _WIN32
656		702
657	static struct ev_signal childev;	703	static struct ev_signal childev;
658		704
659	#ifndef WCONTINUED	705	#ifndef WCONTINUED
660	# define WCONTINUED 0	706	# define WCONTINUED 0
…		…
692		738
693	#endif	739	#endif
694		740
695	/*****************************************************************************/	741	/*****************************************************************************/
696		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
697	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
698	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
699	#endif	748	#endif
700	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
701	# include "ev_epoll.c"	750	# include "ev_epoll.c"
…		…
721		770
722	/* return true if we are running with elevated privileges and should ignore env variables */	771	/* return true if we are running with elevated privileges and should ignore env variables */
723	static int	772	static int
724	enable_secure (void)	773	enable_secure (void)
725	{	774	{
726	#ifdef WIN32	775	#ifdef _WIN32
727	return 0;	776	return 0;
728	#else	777	#else
729	return getuid () != geteuid ()	778	return getuid () != geteuid ()
730	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
731	#endif	780	#endif
732	}	781	}
733		782
734	int	783	unsigned int
735	ev_method (EV_P)	784	ev_supported_backends (void)
736	{	785	{
737	return method;	786	unsigned int flags = 0;
738	}
739		787
740	static void	788	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
741	loop_init (EV_P_ int methods)	789	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		790	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		791	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		792	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		793
		794	return flags;
		795	}
		796
		797	unsigned int
		798	ev_recommended_backends (void)
742	{	799	{
743	if (!method)	800	unsigned int flags = ev_supported_backends ();
		801
		802	#ifndef __NetBSD__
		803	/* kqueue is borked on everything but netbsd apparently */
		804	/* it usually doesn't work correctly on anything but sockets and pipes */
		805	flags &= ~EVBACKEND_KQUEUE;
		806	#endif
		807	#ifdef __APPLE__
		808	// flags &= ~EVBACKEND_KQUEUE; for documentation
		809	flags &= ~EVBACKEND_POLL;
		810	#endif
		811
		812	return flags;
		813	}
		814
		815	unsigned int
		816	ev_backend (EV_P)
		817	{
		818	return backend;
		819	}
		820
		821	static void
		822	loop_init (EV_P_ unsigned int flags)
		823	{
		824	if (!backend)
744	{	825	{
745	#if EV_USE_MONOTONIC	826	#if EV_USE_MONOTONIC
746	{	827	{
747	struct timespec ts;	828	struct timespec ts;
748	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	829	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
753	ev_rt_now = ev_time ();	834	ev_rt_now = ev_time ();
754	mn_now = get_clock ();	835	mn_now = get_clock ();
755	now_floor = mn_now;	836	now_floor = mn_now;
756	rtmn_diff = ev_rt_now - mn_now;	837	rtmn_diff = ev_rt_now - mn_now;
757		838
758	if (methods == EVMETHOD_AUTO)	839	if (!(flags & EVFLAG_NOENV)
759	if (!enable_secure () && getenv ("LIBEV_METHODS"))	840	&& !enable_secure ()
		841	&& getenv ("LIBEV_FLAGS"))
760	methods = atoi (getenv ("LIBEV_METHODS"));	842	flags = atoi (getenv ("LIBEV_FLAGS"));
761	else
762	methods = EVMETHOD_ANY;
763		843
764	method = 0;	844	if (!(flags & 0x0000ffffUL))
765	#if EV_USE_WIN32	845	flags \|= ev_recommended_backends ();
766	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	846
		847	backend = 0;
		848	#if EV_USE_PORT
		849	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
767	#endif	850	#endif
768	#if EV_USE_KQUEUE	851	#if EV_USE_KQUEUE
769	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	852	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
770	#endif	853	#endif
771	#if EV_USE_EPOLL	854	#if EV_USE_EPOLL
772	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	855	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
773	#endif	856	#endif
774	#if EV_USE_POLL	857	#if EV_USE_POLL
775	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	858	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
776	#endif	859	#endif
777	#if EV_USE_SELECT	860	#if EV_USE_SELECT
778	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	861	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
779	#endif	862	#endif
780		863
781	ev_init (&sigev, sigcb);	864	ev_init (&sigev, sigcb);
782	ev_set_priority (&sigev, EV_MAXPRI);	865	ev_set_priority (&sigev, EV_MAXPRI);
783	}	866	}
784	}	867	}
785		868
786	void	869	static void
787	loop_destroy (EV_P)	870	loop_destroy (EV_P)
788	{	871	{
789	int i;	872	int i;
790		873
791	#if EV_USE_WIN32	874	#if EV_USE_PORT
792	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	875	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
793	#endif	876	#endif
794	#if EV_USE_KQUEUE	877	#if EV_USE_KQUEUE
795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	878	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
796	#endif	879	#endif
797	#if EV_USE_EPOLL	880	#if EV_USE_EPOLL
798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	881	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
799	#endif	882	#endif
800	#if EV_USE_POLL	883	#if EV_USE_POLL
801	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	884	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
802	#endif	885	#endif
803	#if EV_USE_SELECT	886	#if EV_USE_SELECT
804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	887	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
805	#endif	888	#endif
806		889
807	for (i = NUMPRI; i--; )	890	for (i = NUMPRI; i--; )
808	array_free (pending, [i]);	891	array_free (pending, [i]);
809		892
810	/* have to use the microsoft-never-gets-it-right macro */	893	/* have to use the microsoft-never-gets-it-right macro */
811	array_free_microshit (fdchange);	894	array_free (fdchange, EMPTY0);
812	array_free_microshit (timer);	895	array_free (timer, EMPTY0);
813	#if EV_PERIODICS	896	#if EV_PERIODICS
814	array_free_microshit (periodic);	897	array_free (periodic, EMPTY0);
815	#endif	898	#endif
816	array_free_microshit (idle);	899	array_free (idle, EMPTY0);
817	array_free_microshit (prepare);	900	array_free (prepare, EMPTY0);
818	array_free_microshit (check);	901	array_free (check, EMPTY0);
819		902
820	method = 0;	903	backend = 0;
821	}	904	}
822		905
823	static void	906	static void
824	loop_fork (EV_P)	907	loop_fork (EV_P)
825	{	908	{
		909	#if EV_USE_PORT
		910	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		911	#endif
		912	#if EV_USE_KQUEUE
		913	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		914	#endif
826	#if EV_USE_EPOLL	915	#if EV_USE_EPOLL
827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	916	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
828	#endif
829	#if EV_USE_KQUEUE
830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
831	#endif	917	#endif
832		918
833	if (ev_is_active (&sigev))	919	if (ev_is_active (&sigev))
834	{	920	{
835	/* default loop */	921	/* default loop */
…		…
848	postfork = 0;	934	postfork = 0;
849	}	935	}
850		936
851	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
852	struct ev_loop *	938	struct ev_loop *
853	ev_loop_new (int methods)	939	ev_loop_new (unsigned int flags)
854	{	940	{
855	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	941	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
856		942
857	memset (loop, 0, sizeof (struct ev_loop));	943	memset (loop, 0, sizeof (struct ev_loop));
858		944
859	loop_init (EV_A_ methods);	945	loop_init (EV_A_ flags);
860		946
861	if (ev_method (EV_A))	947	if (ev_backend (EV_A))
862	return loop;	948	return loop;
863		949
864	return 0;	950	return 0;
865	}	951	}
866		952
…		…
879		965
880	#endif	966	#endif
881		967
882	#if EV_MULTIPLICITY	968	#if EV_MULTIPLICITY
883	struct ev_loop *	969	struct ev_loop *
		970	ev_default_loop_init (unsigned int flags)
884	#else	971	#else
885	int	972	int
		973	ev_default_loop (unsigned int flags)
886	#endif	974	#endif
887	ev_default_loop (int methods)
888	{	975	{
889	if (sigpipe [0] == sigpipe [1])	976	if (sigpipe [0] == sigpipe [1])
890	if (pipe (sigpipe))	977	if (pipe (sigpipe))
891	return 0;	978	return 0;
892		979
893	if (!default_loop)	980	if (!ev_default_loop_ptr)
894	{	981	{
895	#if EV_MULTIPLICITY	982	#if EV_MULTIPLICITY
896	struct ev_loop *loop = default_loop = &default_loop_struct;	983	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
897	#else	984	#else
898	default_loop = 1;	985	ev_default_loop_ptr = 1;
899	#endif	986	#endif
900		987
901	loop_init (EV_A_ methods);	988	loop_init (EV_A_ flags);
902		989
903	if (ev_method (EV_A))	990	if (ev_backend (EV_A))
904	{	991	{
905	siginit (EV_A);	992	siginit (EV_A);
906		993
907	#ifndef WIN32	994	#ifndef _WIN32
908	ev_signal_init (&childev, childcb, SIGCHLD);	995	ev_signal_init (&childev, childcb, SIGCHLD);
909	ev_set_priority (&childev, EV_MAXPRI);	996	ev_set_priority (&childev, EV_MAXPRI);
910	ev_signal_start (EV_A_ &childev);	997	ev_signal_start (EV_A_ &childev);
911	ev_unref (EV_A); /* child watcher should not keep loop alive */	998	ev_unref (EV_A); /* child watcher should not keep loop alive */
912	#endif	999	#endif
913	}	1000	}
914	else	1001	else
915	default_loop = 0;	1002	ev_default_loop_ptr = 0;
916	}	1003	}
917		1004
918	return default_loop;	1005	return ev_default_loop_ptr;
919	}	1006	}
920		1007
921	void	1008	void
922	ev_default_destroy (void)	1009	ev_default_destroy (void)
923	{	1010	{
924	#if EV_MULTIPLICITY	1011	#if EV_MULTIPLICITY
925	struct ev_loop *loop = default_loop;	1012	struct ev_loop *loop = ev_default_loop_ptr;
926	#endif	1013	#endif
927		1014
928	#ifndef WIN32	1015	#ifndef _WIN32
929	ev_ref (EV_A); /* child watcher */	1016	ev_ref (EV_A); /* child watcher */
930	ev_signal_stop (EV_A_ &childev);	1017	ev_signal_stop (EV_A_ &childev);
931	#endif	1018	#endif
932		1019
933	ev_ref (EV_A); /* signal watcher */	1020	ev_ref (EV_A); /* signal watcher */
…		…
941		1028
942	void	1029	void
943	ev_default_fork (void)	1030	ev_default_fork (void)
944	{	1031	{
945	#if EV_MULTIPLICITY	1032	#if EV_MULTIPLICITY
946	struct ev_loop *loop = default_loop;	1033	struct ev_loop *loop = ev_default_loop_ptr;
947	#endif	1034	#endif
948		1035
949	if (method)	1036	if (backend)
950	postfork = 1;	1037	postfork = 1;
951	}	1038	}
952		1039
953	/*****************************************************************************/	1040	/*****************************************************************************/
954		1041
…		…
962	return 1;	1049	return 1;
963		1050
964	return 0;	1051	return 0;
965	}	1052	}
966		1053
967	static void	1054	inline void
968	call_pending (EV_P)	1055	call_pending (EV_P)
969	{	1056	{
970	int pri;	1057	int pri;
971		1058
972	for (pri = NUMPRI; pri--; )	1059	for (pri = NUMPRI; pri--; )
973	while (pendingcnt [pri])	1060	while (pendingcnt [pri])
974	{	1061	{
975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1062	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
976		1063
977	if (p->w)	1064	if (expect_true (p->w))
978	{	1065	{
979	p->w->pending = 0;	1066	p->w->pending = 0;
980	EV_CB_INVOKE (p->w, p->events);	1067	EV_CB_INVOKE (p->w, p->events);
981	}	1068	}
982	}	1069	}
983	}	1070	}
984		1071
985	static void	1072	inline void
986	timers_reify (EV_P)	1073	timers_reify (EV_P)
987	{	1074	{
988	while (timercnt && ((WT)timers [0])->at <= mn_now)	1075	while (timercnt && ((WT)timers [0])->at <= mn_now)
989	{	1076	{
990	struct ev_timer *w = timers [0];	1077	struct ev_timer *w = timers [0];
…		…
1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1095	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1009	}	1096	}
1010	}	1097	}
1011		1098
1012	#if EV_PERIODICS	1099	#if EV_PERIODICS
1013	static void	1100	inline void
1014	periodics_reify (EV_P)	1101	periodics_reify (EV_P)
1015	{	1102	{
1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1103	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1017	{	1104	{
1018	struct ev_periodic *w = periodics [0];	1105	struct ev_periodic *w = periodics [0];
…		…
1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1107	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1021		1108
1022	/* first reschedule or stop timer */	1109	/* first reschedule or stop timer */
1023	if (w->reschedule_cb)	1110	if (w->reschedule_cb)
1024	{	1111	{
1025	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1026
1027	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1113	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1028	downheap ((WT *)periodics, periodiccnt, 0);	1114	downheap ((WT *)periodics, periodiccnt, 0);
1029	}	1115	}
1030	else if (w->interval)	1116	else if (w->interval)
1031	{	1117	{
…		…
1078	ev_rt_now = ev_time ();	1164	ev_rt_now = ev_time ();
1079	return 1;	1165	return 1;
1080	}	1166	}
1081	}	1167	}
1082		1168
1083	static void	1169	inline void
1084	time_update (EV_P)	1170	time_update (EV_P)
1085	{	1171	{
1086	int i;	1172	int i;
1087		1173
1088	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
…		…
1149	ev_loop (EV_P_ int flags)	1235	ev_loop (EV_P_ int flags)
1150	{	1236	{
1151	double block;	1237	double block;
1152	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1238	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1153		1239
1154	do	1240	while (activecnt)
1155	{	1241	{
1156	/* queue check watchers (and execute them) */	1242	/* queue check watchers (and execute them) */
1157	if (expect_false (preparecnt))	1243	if (expect_false (preparecnt))
1158	{	1244	{
1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1245	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1187	{	1273	{
1188	block = MAX_BLOCKTIME;	1274	block = MAX_BLOCKTIME;
1189		1275
1190	if (timercnt)	1276	if (timercnt)
1191	{	1277	{
1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1278	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1193	if (block > to) block = to;	1279	if (block > to) block = to;
1194	}	1280	}
1195		1281
1196	#if EV_PERIODICS	1282	#if EV_PERIODICS
1197	if (periodiccnt)	1283	if (periodiccnt)
1198	{	1284	{
1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1285	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1200	if (block > to) block = to;	1286	if (block > to) block = to;
1201	}	1287	}
1202	#endif	1288	#endif
1203		1289
1204	if (block < 0.) block = 0.;	1290	if (expect_false (block < 0.)) block = 0.;
1205	}	1291	}
1206		1292
1207	method_poll (EV_A_ block);	1293	backend_poll (EV_A_ block);
1208		1294
1209	/* update ev_rt_now, do magic */	1295	/* update ev_rt_now, do magic */
1210	time_update (EV_A);	1296	time_update (EV_A);
1211		1297
1212	/* queue pending timers and reschedule them */	1298	/* queue pending timers and reschedule them */
…		…
1218	/* queue idle watchers unless io or timers are pending */	1304	/* queue idle watchers unless io or timers are pending */
1219	if (idlecnt && !any_pending (EV_A))	1305	if (idlecnt && !any_pending (EV_A))
1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1306	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1221		1307
1222	/* queue check watchers, to be executed first */	1308	/* queue check watchers, to be executed first */
1223	if (checkcnt)	1309	if (expect_false (checkcnt))
1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1310	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1225		1311
1226	call_pending (EV_A);	1312	call_pending (EV_A);
		1313
		1314	if (expect_false (loop_done))
		1315	break;
1227	}	1316	}
1228	while (activecnt && !loop_done);
1229		1317
1230	if (loop_done != 2)	1318	if (loop_done != 2)
1231	loop_done = 0;	1319	loop_done = 0;
1232	}	1320	}
1233		1321
…		…
1293	void	1381	void
1294	ev_io_start (EV_P_ struct ev_io *w)	1382	ev_io_start (EV_P_ struct ev_io *w)
1295	{	1383	{
1296	int fd = w->fd;	1384	int fd = w->fd;
1297		1385
1298	if (ev_is_active (w))	1386	if (expect_false (ev_is_active (w)))
1299	return;	1387	return;
1300		1388
1301	assert (("ev_io_start called with negative fd", fd >= 0));	1389	assert (("ev_io_start called with negative fd", fd >= 0));
1302		1390
1303	ev_start (EV_A_ (W)w, 1);	1391	ev_start (EV_A_ (W)w, 1);
…		…
1309		1397
1310	void	1398	void
1311	ev_io_stop (EV_P_ struct ev_io *w)	1399	ev_io_stop (EV_P_ struct ev_io *w)
1312	{	1400	{
1313	ev_clear_pending (EV_A_ (W)w);	1401	ev_clear_pending (EV_A_ (W)w);
1314	if (!ev_is_active (w))	1402	if (expect_false (!ev_is_active (w)))
1315	return;	1403	return;
1316		1404
1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1405	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1318		1406
1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1407	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1323	}	1411	}
1324		1412
1325	void	1413	void
1326	ev_timer_start (EV_P_ struct ev_timer *w)	1414	ev_timer_start (EV_P_ struct ev_timer *w)
1327	{	1415	{
1328	if (ev_is_active (w))	1416	if (expect_false (ev_is_active (w)))
1329	return;	1417	return;
1330		1418
1331	((WT)w)->at += mn_now;	1419	((WT)w)->at += mn_now;
1332		1420
1333	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1421	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1334		1422
1335	ev_start (EV_A_ (W)w, ++timercnt);	1423	ev_start (EV_A_ (W)w, ++timercnt);
1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1424	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1337	timers [timercnt - 1] = w;	1425	timers [timercnt - 1] = w;
1338	upheap ((WT *)timers, timercnt - 1);	1426	upheap ((WT *)timers, timercnt - 1);
1339		1427
1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1428	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1341	}	1429	}
1342		1430
1343	void	1431	void
1344	ev_timer_stop (EV_P_ struct ev_timer *w)	1432	ev_timer_stop (EV_P_ struct ev_timer *w)
1345	{	1433	{
1346	ev_clear_pending (EV_A_ (W)w);	1434	ev_clear_pending (EV_A_ (W)w);
1347	if (!ev_is_active (w))	1435	if (expect_false (!ev_is_active (w)))
1348	return;	1436	return;
1349		1437
1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1438	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1351		1439
1352	if (((W)w)->active < timercnt--)	1440	if (expect_true (((W)w)->active < timercnt--))
1353	{	1441	{
1354	timers [((W)w)->active - 1] = timers [timercnt];	1442	timers [((W)w)->active - 1] = timers [timercnt];
1355	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1443	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1356	}	1444	}
1357		1445
1358	((WT)w)->at -= mn_now;	1446	((WT)w)->at -= mn_now;
1359		1447
1360	ev_stop (EV_A_ (W)w);	1448	ev_stop (EV_A_ (W)w);
…		…
1364	ev_timer_again (EV_P_ struct ev_timer *w)	1452	ev_timer_again (EV_P_ struct ev_timer *w)
1365	{	1453	{
1366	if (ev_is_active (w))	1454	if (ev_is_active (w))
1367	{	1455	{
1368	if (w->repeat)	1456	if (w->repeat)
		1457	{
		1458	((WT)w)->at = mn_now + w->repeat;
1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1460	}
1370	else	1461	else
1371	ev_timer_stop (EV_A_ w);	1462	ev_timer_stop (EV_A_ w);
1372	}	1463	}
1373	else if (w->repeat)	1464	else if (w->repeat)
		1465	{
		1466	w->at = w->repeat;
1374	ev_timer_start (EV_A_ w);	1467	ev_timer_start (EV_A_ w);
		1468	}
1375	}	1469	}
1376		1470
1377	#if EV_PERIODICS	1471	#if EV_PERIODICS
1378	void	1472	void
1379	ev_periodic_start (EV_P_ struct ev_periodic *w)	1473	ev_periodic_start (EV_P_ struct ev_periodic *w)
1380	{	1474	{
1381	if (ev_is_active (w))	1475	if (expect_false (ev_is_active (w)))
1382	return;	1476	return;
1383		1477
1384	if (w->reschedule_cb)	1478	if (w->reschedule_cb)
1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1479	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1386	else if (w->interval)	1480	else if (w->interval)
…		…
1389	/* this formula differs from the one in periodic_reify because we do not always round up */	1483	/* this formula differs from the one in periodic_reify because we do not always round up */
1390	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1484	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1391	}	1485	}
1392		1486
1393	ev_start (EV_A_ (W)w, ++periodiccnt);	1487	ev_start (EV_A_ (W)w, ++periodiccnt);
1394	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1488	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1395	periodics [periodiccnt - 1] = w;	1489	periodics [periodiccnt - 1] = w;
1396	upheap ((WT *)periodics, periodiccnt - 1);	1490	upheap ((WT *)periodics, periodiccnt - 1);
1397		1491
1398	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1492	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1399	}	1493	}
1400		1494
1401	void	1495	void
1402	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1496	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1403	{	1497	{
1404	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1405	if (!ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1406	return;	1500	return;
1407		1501
1408	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1502	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1409		1503
1410	if (((W)w)->active < periodiccnt--)	1504	if (expect_true (((W)w)->active < periodiccnt--))
1411	{	1505	{
1412	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1506	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1413	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1507	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1414	}	1508	}
1415		1509
1416	ev_stop (EV_A_ (W)w);	1510	ev_stop (EV_A_ (W)w);
1417	}	1511	}
1418		1512
…		…
1426	#endif	1520	#endif
1427		1521
1428	void	1522	void
1429	ev_idle_start (EV_P_ struct ev_idle *w)	1523	ev_idle_start (EV_P_ struct ev_idle *w)
1430	{	1524	{
1431	if (ev_is_active (w))	1525	if (expect_false (ev_is_active (w)))
1432	return;	1526	return;
1433		1527
1434	ev_start (EV_A_ (W)w, ++idlecnt);	1528	ev_start (EV_A_ (W)w, ++idlecnt);
1435	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1529	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1436	idles [idlecnt - 1] = w;	1530	idles [idlecnt - 1] = w;
1437	}	1531	}
1438		1532
1439	void	1533	void
1440	ev_idle_stop (EV_P_ struct ev_idle *w)	1534	ev_idle_stop (EV_P_ struct ev_idle *w)
1441	{	1535	{
1442	ev_clear_pending (EV_A_ (W)w);	1536	ev_clear_pending (EV_A_ (W)w);
1443	if (ev_is_active (w))	1537	if (expect_false (!ev_is_active (w)))
1444	return;	1538	return;
1445		1539
1446	idles [((W)w)->active - 1] = idles [--idlecnt];	1540	idles [((W)w)->active - 1] = idles [--idlecnt];
1447	ev_stop (EV_A_ (W)w);	1541	ev_stop (EV_A_ (W)w);
1448	}	1542	}
1449		1543
1450	void	1544	void
1451	ev_prepare_start (EV_P_ struct ev_prepare *w)	1545	ev_prepare_start (EV_P_ struct ev_prepare *w)
1452	{	1546	{
1453	if (ev_is_active (w))	1547	if (expect_false (ev_is_active (w)))
1454	return;	1548	return;
1455		1549
1456	ev_start (EV_A_ (W)w, ++preparecnt);	1550	ev_start (EV_A_ (W)w, ++preparecnt);
1457	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1551	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1458	prepares [preparecnt - 1] = w;	1552	prepares [preparecnt - 1] = w;
1459	}	1553	}
1460		1554
1461	void	1555	void
1462	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1556	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1463	{	1557	{
1464	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1465	if (ev_is_active (w))	1559	if (expect_false (!ev_is_active (w)))
1466	return;	1560	return;
1467		1561
1468	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1562	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1469	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1470	}	1564	}
1471		1565
1472	void	1566	void
1473	ev_check_start (EV_P_ struct ev_check *w)	1567	ev_check_start (EV_P_ struct ev_check *w)
1474	{	1568	{
1475	if (ev_is_active (w))	1569	if (expect_false (ev_is_active (w)))
1476	return;	1570	return;
1477		1571
1478	ev_start (EV_A_ (W)w, ++checkcnt);	1572	ev_start (EV_A_ (W)w, ++checkcnt);
1479	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1573	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1480	checks [checkcnt - 1] = w;	1574	checks [checkcnt - 1] = w;
1481	}	1575	}
1482		1576
1483	void	1577	void
1484	ev_check_stop (EV_P_ struct ev_check *w)	1578	ev_check_stop (EV_P_ struct ev_check *w)
1485	{	1579	{
1486	ev_clear_pending (EV_A_ (W)w);	1580	ev_clear_pending (EV_A_ (W)w);
1487	if (!ev_is_active (w))	1581	if (expect_false (!ev_is_active (w)))
1488	return;	1582	return;
1489		1583
1490	checks [((W)w)->active - 1] = checks [--checkcnt];	1584	checks [((W)w)->active - 1] = checks [--checkcnt];
1491	ev_stop (EV_A_ (W)w);	1585	ev_stop (EV_A_ (W)w);
1492	}	1586	}
…		…
1497		1591
1498	void	1592	void
1499	ev_signal_start (EV_P_ struct ev_signal *w)	1593	ev_signal_start (EV_P_ struct ev_signal *w)
1500	{	1594	{
1501	#if EV_MULTIPLICITY	1595	#if EV_MULTIPLICITY
1502	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1596	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1503	#endif	1597	#endif
1504	if (ev_is_active (w))	1598	if (expect_false (ev_is_active (w)))
1505	return;	1599	return;
1506		1600
1507	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1601	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1508		1602
1509	ev_start (EV_A_ (W)w, 1);	1603	ev_start (EV_A_ (W)w, 1);
1510	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1604	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1511	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1605	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1512		1606
1513	if (!((WL)w)->next)	1607	if (!((WL)w)->next)
1514	{	1608	{
1515	#if WIN32	1609	#if _WIN32
1516	signal (w->signum, sighandler);	1610	signal (w->signum, sighandler);
1517	#else	1611	#else
1518	struct sigaction sa;	1612	struct sigaction sa;
1519	sa.sa_handler = sighandler;	1613	sa.sa_handler = sighandler;
1520	sigfillset (&sa.sa_mask);	1614	sigfillset (&sa.sa_mask);
…		…
1526		1620
1527	void	1621	void
1528	ev_signal_stop (EV_P_ struct ev_signal *w)	1622	ev_signal_stop (EV_P_ struct ev_signal *w)
1529	{	1623	{
1530	ev_clear_pending (EV_A_ (W)w);	1624	ev_clear_pending (EV_A_ (W)w);
1531	if (!ev_is_active (w))	1625	if (expect_false (!ev_is_active (w)))
1532	return;	1626	return;
1533		1627
1534	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1628	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1535	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1536		1630
…		…
1540		1634
1541	void	1635	void
1542	ev_child_start (EV_P_ struct ev_child *w)	1636	ev_child_start (EV_P_ struct ev_child *w)
1543	{	1637	{
1544	#if EV_MULTIPLICITY	1638	#if EV_MULTIPLICITY
1545	assert (("child watchers are only supported in the default loop", loop == default_loop));	1639	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1546	#endif	1640	#endif
1547	if (ev_is_active (w))	1641	if (expect_false (ev_is_active (w)))
1548	return;	1642	return;
1549		1643
1550	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1551	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1645	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1552	}	1646	}
1553		1647
1554	void	1648	void
1555	ev_child_stop (EV_P_ struct ev_child *w)	1649	ev_child_stop (EV_P_ struct ev_child *w)
1556	{	1650	{
1557	ev_clear_pending (EV_A_ (W)w);	1651	ev_clear_pending (EV_A_ (W)w);
1558	if (!ev_is_active (w))	1652	if (expect_false (!ev_is_active (w)))
1559	return;	1653	return;
1560		1654
1561	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1655	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1562	ev_stop (EV_A_ (W)w);	1656	ev_stop (EV_A_ (W)w);
1563	}	1657	}
…		…
1600	void	1694	void
1601	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1695	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1602	{	1696	{
1603	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1697	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1604		1698
1605	if (!once)	1699	if (expect_false (!once))
		1700	{
1606	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1701	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1607	else	1702	return;
1608	{	1703	}
		1704
1609	once->cb = cb;	1705	once->cb = cb;
1610	once->arg = arg;	1706	once->arg = arg;
1611		1707
1612	ev_init (&once->io, once_cb_io);	1708	ev_init (&once->io, once_cb_io);
1613	if (fd >= 0)	1709	if (fd >= 0)
1614	{	1710	{
1615	ev_io_set (&once->io, fd, events);	1711	ev_io_set (&once->io, fd, events);
1616	ev_io_start (EV_A_ &once->io);	1712	ev_io_start (EV_A_ &once->io);
1617	}	1713	}
1618		1714
1619	ev_init (&once->to, once_cb_to);	1715	ev_init (&once->to, once_cb_to);
1620	if (timeout >= 0.)	1716	if (timeout >= 0.)
1621	{	1717	{
1622	ev_timer_set (&once->to, timeout, 0.);	1718	ev_timer_set (&once->to, timeout, 0.);
1623	ev_timer_start (EV_A_ &once->to);	1719	ev_timer_start (EV_A_ &once->to);
1624	}
1625	}	1720	}
1626	}	1721	}
1627		1722
1628	#ifdef __cplusplus	1723	#ifdef __cplusplus
1629	}	1724	}

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Comparing libev/ev.c (file contents): Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC vs. Revision 1.131 by root, Fri Nov 23 05:43:45 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC vs.
Revision 1.131 by root, Fri Nov 23 05:43:45 2007 UTC