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

Comparing libev/ev.c (file contents):
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC vs.
Revision 1.130 by root, Fri Nov 23 05:13:48 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
166	#ifdef WIN32	209	#ifdef _WIN32
167	# include "ev_win32.c"	210	# include "ev_win32.c"
168	#endif	211	#endif
169		212
170	/*****************************************************************************/	213	/*****************************************************************************/
171		214
…		…
220	typedef struct	263	typedef struct
221	{	264	{
222	WL head;	265	WL head;
223	unsigned char events;	266	unsigned char events;
224	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
225	} ANFD;	271	} ANFD;
226		272
227	typedef struct	273	typedef struct
228	{	274	{
229	W w;	275	W w;
…		…
233	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
234		280
235	struct ev_loop	281	struct ev_loop
236	{	282	{
237	ev_tstamp ev_rt_now;	283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
238	#define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
239	#include "ev_vars.h"	286	#include "ev_vars.h"
240	#undef VAR	287	#undef VAR
241	};	288	};
242	#include "ev_wrap.h"	289	#include "ev_wrap.h"
243		290
244	struct ev_loop default_loop_struct;	291	static struct ev_loop default_loop_struct;
245	static struct ev_loop *default_loop;	292	struct ev_loop *ev_default_loop_ptr;
246		293
247	#else	294	#else
248		295
249	ev_tstamp ev_rt_now;	296	ev_tstamp ev_rt_now;
250	#define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
251	#include "ev_vars.h"	298	#include "ev_vars.h"
252	#undef VAR	299	#undef VAR
253		300
254	static int default_loop;	301	static int ev_default_loop_ptr;
255		302
256	#endif	303	#endif
257		304
258	/*****************************************************************************/	305	/*****************************************************************************/
259		306
…		…
292	{	339	{
293	return ev_rt_now;	340	return ev_rt_now;
294	}	341	}
295	#endif	342	#endif
296		343
297	#define array_roundsize(type,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
298		345
299	#define array_needsize(type,base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
300	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
301	{ \	348	{ \
302	int newcnt = cur; \	349	int newcnt = cur; \
…		…
317	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
318	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
319	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
320	}	367	}
321		368
322	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
323	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
324	#define array_free_microshit(stem) \
325	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
326
327	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
328	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;
329		371
330	/*****************************************************************************/	372	/*****************************************************************************/
331		373
…		…
345	void	387	void
346	ev_feed_event (EV_P_ void *w, int revents)	388	ev_feed_event (EV_P_ void *w, int revents)
347	{	389	{
348	W w_ = (W)w;	390	W w_ = (W)w;
349		391
350	if (w_->pending)	392	if (expect_false (w_->pending))
351	{	393	{
352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
353	return;	395	return;
354	}	396	}
355		397
356	w_->pending = ++pendingcnt [ABSPRI (w_)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
357	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);
358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
360	}	402	}
361		403
362	static void	404	static void
…		…
389	fd_event (EV_A_ fd, revents);	431	fd_event (EV_A_ fd, revents);
390	}	432	}
391		433
392	/*****************************************************************************/	434	/*****************************************************************************/
393		435
394	static void	436	inline void
395	fd_reify (EV_P)	437	fd_reify (EV_P)
396	{	438	{
397	int i;	439	int i;
398		440
399	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
405	int events = 0;	447	int events = 0;
406		448
407	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)
408	events \|= w->events;	450	events \|= w->events;
409		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
410	anfd->reify = 0;	461	anfd->reify = 0;
411		462
412	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
413	anfd->events = events;	464	anfd->events = events;
414	}	465	}
415		466
416	fdchangecnt = 0;	467	fdchangecnt = 0;
417	}	468	}
418		469
419	static void	470	static void
420	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
421	{	472	{
422	if (anfds [fd].reify)	473	if (expect_false (anfds [fd].reify))
423	return;	474	return;
424		475
425	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
426		477
427	++fdchangecnt;	478	++fdchangecnt;
428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
429	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
430	}	481	}
431		482
432	static void	483	static void
433	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
439	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
440	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);
441	}	492	}
442	}	493	}
443		494
444	static int	495	inline int
445	fd_valid (int fd)	496	fd_valid (int fd)
446	{	497	{
447	#ifdef WIN32	498	#ifdef _WIN32
448	return !!win32_get_osfhandle (fd);	499	return _get_osfhandle (fd) != -1;
449	#else	500	#else
450	return fcntl (fd, F_GETFD) != -1;	501	return fcntl (fd, F_GETFD) != -1;
451	#endif	502	#endif
452	}	503	}
453		504
…		…
475	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
476	return;	527	return;
477	}	528	}
478	}	529	}
479		530
480	/* 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 */
481	static void	532	static void
482	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
483	{	534	{
484	int fd;	535	int fd;
485		536
…		…
534	heap [k] = w;	585	heap [k] = w;
535	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
536	}	587	}
537		588
538	inline void	589	inline void
539	adjustheap (WT *heap, int N, int k, ev_tstamp at)	590	adjustheap (WT *heap, int N, int k)
540	{	591	{
541	ev_tstamp old_at = heap [k]->at;	592	upheap (heap, k);
542	heap [k]->at = at;
543
544	if (old_at < at)
545	downheap (heap, N, k);	593	downheap (heap, N, k);
546	else
547	upheap (heap, k);
548	}	594	}
549		595
550	/*****************************************************************************/	596	/*****************************************************************************/
551		597
552	typedef struct	598	typedef struct
…		…
575	}	621	}
576		622
577	static void	623	static void
578	sighandler (int signum)	624	sighandler (int signum)
579	{	625	{
580	#if WIN32	626	#if _WIN32
581	signal (signum, sighandler);	627	signal (signum, sighandler);
582	#endif	628	#endif
583		629
584	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
585		631
586	if (!gotsig)	632	if (!gotsig)
587	{	633	{
588	int old_errno = errno;	634	int old_errno = errno;
589	gotsig = 1;	635	gotsig = 1;
590	#ifdef WIN32
591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
592	#else
593	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
594	#endif
595	errno = old_errno;	637	errno = old_errno;
596	}	638	}
597	}	639	}
598		640
599	void	641	void
600	ev_feed_signal_event (EV_P_ int signum)	642	ev_feed_signal_event (EV_P_ int signum)
601	{	643	{
602	WL w;	644	WL w;
603		645
604	#if EV_MULTIPLICITY	646	#if EV_MULTIPLICITY
605	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));
606	#endif	648	#endif
607		649
608	--signum;	650	--signum;
609		651
610	if (signum < 0 \|\| signum >= signalmax)	652	if (signum < 0 \|\| signum >= signalmax)
…		…
619	static void	661	static void
620	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
621	{	663	{
622	int signum;	664	int signum;
623		665
624	#ifdef WIN32
625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
626	#else
627	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
628	#endif
629	gotsig = 0;	667	gotsig = 0;
630		668
631	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
632	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
633	ev_feed_signal_event (EV_A_ signum + 1);	671	ev_feed_signal_event (EV_A_ signum + 1);
634	}	672	}
635		673
636	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
637	siginit (EV_P)	687	siginit (EV_P)
638	{	688	{
639	#ifndef WIN32	689	fd_intern (sigpipe [0]);
640	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
641	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
642
643	/* rather than sort out wether we really need nb, set it */
644	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
645	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
646	#endif
647		691
648	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
649	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
650	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
651	}	695	}
652		696
653	/*****************************************************************************/	697	/*****************************************************************************/
654		698
655	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
656		700
657	#ifndef WIN32	701	#ifndef _WIN32
658		702
659	static struct ev_signal childev;	703	static struct ev_signal childev;
660		704
661	#ifndef WCONTINUED	705	#ifndef WCONTINUED
662	# define WCONTINUED 0	706	# define WCONTINUED 0
…		…
694		738
695	#endif	739	#endif
696		740
697	/*****************************************************************************/	741	/*****************************************************************************/
698		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
699	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
700	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
701	#endif	748	#endif
702	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
703	# include "ev_epoll.c"	750	# include "ev_epoll.c"
…		…
723		770
724	/* 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 */
725	static int	772	static int
726	enable_secure (void)	773	enable_secure (void)
727	{	774	{
728	#ifdef WIN32	775	#ifdef _WIN32
729	return 0;	776	return 0;
730	#else	777	#else
731	return getuid () != geteuid ()	778	return getuid () != geteuid ()
732	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
733	#endif	780	#endif
734	}	781	}
735		782
736	int	783	unsigned int
737	ev_method (EV_P)	784	ev_supported_backends (void)
738	{	785	{
739	return method;	786	unsigned int flags = 0;
740	}
741		787
742	static void	788	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
743	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)
744	{	799	{
745	if (!method)	800	unsigned int flags = ev_recommended_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)
746	{	825	{
747	#if EV_USE_MONOTONIC	826	#if EV_USE_MONOTONIC
748	{	827	{
749	struct timespec ts;	828	struct timespec ts;
750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	829	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
755	ev_rt_now = ev_time ();	834	ev_rt_now = ev_time ();
756	mn_now = get_clock ();	835	mn_now = get_clock ();
757	now_floor = mn_now;	836	now_floor = mn_now;
758	rtmn_diff = ev_rt_now - mn_now;	837	rtmn_diff = ev_rt_now - mn_now;
759		838
760	if (methods == EVMETHOD_AUTO)	839	if (!(flags & EVFLAG_NOENV)
761	if (!enable_secure () && getenv ("LIBEV_METHODS"))	840	&& !enable_secure ()
		841	&& getenv ("LIBEV_FLAGS"))
762	methods = atoi (getenv ("LIBEV_METHODS"));	842	flags = atoi (getenv ("LIBEV_FLAGS"));
763	else
764	methods = EVMETHOD_ANY;
765		843
766	method = 0;	844	if (!(flags & 0x0000ffffUL))
767	#if EV_USE_WIN32	845	flags \|= ev_recommended_backends ();
768	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);
769	#endif	850	#endif
770	#if EV_USE_KQUEUE	851	#if EV_USE_KQUEUE
771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	852	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
772	#endif	853	#endif
773	#if EV_USE_EPOLL	854	#if EV_USE_EPOLL
774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	855	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
775	#endif	856	#endif
776	#if EV_USE_POLL	857	#if EV_USE_POLL
777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	858	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
778	#endif	859	#endif
779	#if EV_USE_SELECT	860	#if EV_USE_SELECT
780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	861	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
781	#endif	862	#endif
782		863
783	ev_init (&sigev, sigcb);	864	ev_init (&sigev, sigcb);
784	ev_set_priority (&sigev, EV_MAXPRI);	865	ev_set_priority (&sigev, EV_MAXPRI);
785	}	866	}
786	}	867	}
787		868
788	void	869	static void
789	loop_destroy (EV_P)	870	loop_destroy (EV_P)
790	{	871	{
791	int i;	872	int i;
792		873
793	#if EV_USE_WIN32	874	#if EV_USE_PORT
794	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	875	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
795	#endif	876	#endif
796	#if EV_USE_KQUEUE	877	#if EV_USE_KQUEUE
797	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	878	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
798	#endif	879	#endif
799	#if EV_USE_EPOLL	880	#if EV_USE_EPOLL
800	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	881	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
801	#endif	882	#endif
802	#if EV_USE_POLL	883	#if EV_USE_POLL
803	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	884	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
804	#endif	885	#endif
805	#if EV_USE_SELECT	886	#if EV_USE_SELECT
806	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	887	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
807	#endif	888	#endif
808		889
809	for (i = NUMPRI; i--; )	890	for (i = NUMPRI; i--; )
810	array_free (pending, [i]);	891	array_free (pending, [i]);
811		892
812	/* have to use the microsoft-never-gets-it-right macro */	893	/* have to use the microsoft-never-gets-it-right macro */
813	array_free_microshit (fdchange);	894	array_free (fdchange, EMPTY0);
814	array_free_microshit (timer);	895	array_free (timer, EMPTY0);
815	#if EV_PERIODICS	896	#if EV_PERIODICS
816	array_free_microshit (periodic);	897	array_free (periodic, EMPTY0);
817	#endif	898	#endif
818	array_free_microshit (idle);	899	array_free (idle, EMPTY0);
819	array_free_microshit (prepare);	900	array_free (prepare, EMPTY0);
820	array_free_microshit (check);	901	array_free (check, EMPTY0);
821		902
822	method = 0;	903	backend = 0;
823	}	904	}
824		905
825	static void	906	static void
826	loop_fork (EV_P)	907	loop_fork (EV_P)
827	{	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
828	#if EV_USE_EPOLL	915	#if EV_USE_EPOLL
829	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	916	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
830	#endif
831	#if EV_USE_KQUEUE
832	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
833	#endif	917	#endif
834		918
835	if (ev_is_active (&sigev))	919	if (ev_is_active (&sigev))
836	{	920	{
837	/* default loop */	921	/* default loop */
…		…
850	postfork = 0;	934	postfork = 0;
851	}	935	}
852		936
853	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
854	struct ev_loop *	938	struct ev_loop *
855	ev_loop_new (int methods)	939	ev_loop_new (unsigned int flags)
856	{	940	{
857	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));
858		942
859	memset (loop, 0, sizeof (struct ev_loop));	943	memset (loop, 0, sizeof (struct ev_loop));
860		944
861	loop_init (EV_A_ methods);	945	loop_init (EV_A_ flags);
862		946
863	if (ev_method (EV_A))	947	if (ev_backend (EV_A))
864	return loop;	948	return loop;
865		949
866	return 0;	950	return 0;
867	}	951	}
868		952
…		…
881		965
882	#endif	966	#endif
883		967
884	#if EV_MULTIPLICITY	968	#if EV_MULTIPLICITY
885	struct ev_loop *	969	struct ev_loop *
		970	ev_default_loop_init (unsigned int flags)
886	#else	971	#else
887	int	972	int
		973	ev_default_loop (unsigned int flags)
888	#endif	974	#endif
889	ev_default_loop (int methods)
890	{	975	{
891	if (sigpipe [0] == sigpipe [1])	976	if (sigpipe [0] == sigpipe [1])
892	if (pipe (sigpipe))	977	if (pipe (sigpipe))
893	return 0;	978	return 0;
894		979
895	if (!default_loop)	980	if (!ev_default_loop_ptr)
896	{	981	{
897	#if EV_MULTIPLICITY	982	#if EV_MULTIPLICITY
898	struct ev_loop *loop = default_loop = &default_loop_struct;	983	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
899	#else	984	#else
900	default_loop = 1;	985	ev_default_loop_ptr = 1;
901	#endif	986	#endif
902		987
903	loop_init (EV_A_ methods);	988	loop_init (EV_A_ flags);
904		989
905	if (ev_method (EV_A))	990	if (ev_backend (EV_A))
906	{	991	{
907	siginit (EV_A);	992	siginit (EV_A);
908		993
909	#ifndef WIN32	994	#ifndef _WIN32
910	ev_signal_init (&childev, childcb, SIGCHLD);	995	ev_signal_init (&childev, childcb, SIGCHLD);
911	ev_set_priority (&childev, EV_MAXPRI);	996	ev_set_priority (&childev, EV_MAXPRI);
912	ev_signal_start (EV_A_ &childev);	997	ev_signal_start (EV_A_ &childev);
913	ev_unref (EV_A); /* child watcher should not keep loop alive */	998	ev_unref (EV_A); /* child watcher should not keep loop alive */
914	#endif	999	#endif
915	}	1000	}
916	else	1001	else
917	default_loop = 0;	1002	ev_default_loop_ptr = 0;
918	}	1003	}
919		1004
920	return default_loop;	1005	return ev_default_loop_ptr;
921	}	1006	}
922		1007
923	void	1008	void
924	ev_default_destroy (void)	1009	ev_default_destroy (void)
925	{	1010	{
926	#if EV_MULTIPLICITY	1011	#if EV_MULTIPLICITY
927	struct ev_loop *loop = default_loop;	1012	struct ev_loop *loop = ev_default_loop_ptr;
928	#endif	1013	#endif
929		1014
930	#ifndef WIN32	1015	#ifndef _WIN32
931	ev_ref (EV_A); /* child watcher */	1016	ev_ref (EV_A); /* child watcher */
932	ev_signal_stop (EV_A_ &childev);	1017	ev_signal_stop (EV_A_ &childev);
933	#endif	1018	#endif
934		1019
935	ev_ref (EV_A); /* signal watcher */	1020	ev_ref (EV_A); /* signal watcher */
…		…
943		1028
944	void	1029	void
945	ev_default_fork (void)	1030	ev_default_fork (void)
946	{	1031	{
947	#if EV_MULTIPLICITY	1032	#if EV_MULTIPLICITY
948	struct ev_loop *loop = default_loop;	1033	struct ev_loop *loop = ev_default_loop_ptr;
949	#endif	1034	#endif
950		1035
951	if (method)	1036	if (backend)
952	postfork = 1;	1037	postfork = 1;
953	}	1038	}
954		1039
955	/*****************************************************************************/	1040	/*****************************************************************************/
956		1041
…		…
964	return 1;	1049	return 1;
965		1050
966	return 0;	1051	return 0;
967	}	1052	}
968		1053
969	static void	1054	inline void
970	call_pending (EV_P)	1055	call_pending (EV_P)
971	{	1056	{
972	int pri;	1057	int pri;
973		1058
974	for (pri = NUMPRI; pri--; )	1059	for (pri = NUMPRI; pri--; )
975	while (pendingcnt [pri])	1060	while (pendingcnt [pri])
976	{	1061	{
977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1062	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
978		1063
979	if (p->w)	1064	if (expect_true (p->w))
980	{	1065	{
981	p->w->pending = 0;	1066	p->w->pending = 0;
982	EV_CB_INVOKE (p->w, p->events);	1067	EV_CB_INVOKE (p->w, p->events);
983	}	1068	}
984	}	1069	}
985	}	1070	}
986		1071
987	static void	1072	inline void
988	timers_reify (EV_P)	1073	timers_reify (EV_P)
989	{	1074	{
990	while (timercnt && ((WT)timers [0])->at <= mn_now)	1075	while (timercnt && ((WT)timers [0])->at <= mn_now)
991	{	1076	{
992	struct ev_timer *w = timers [0];	1077	struct ev_timer *w = timers [0];
…		…
1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1095	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1011	}	1096	}
1012	}	1097	}
1013		1098
1014	#if EV_PERIODICS	1099	#if EV_PERIODICS
1015	static void	1100	inline void
1016	periodics_reify (EV_P)	1101	periodics_reify (EV_P)
1017	{	1102	{
1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1103	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1019	{	1104	{
1020	struct ev_periodic *w = periodics [0];	1105	struct ev_periodic *w = periodics [0];
…		…
1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1107	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1023		1108
1024	/* first reschedule or stop timer */	1109	/* first reschedule or stop timer */
1025	if (w->reschedule_cb)	1110	if (w->reschedule_cb)
1026	{	1111	{
1027	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);
1028
1029	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));
1030	downheap ((WT *)periodics, periodiccnt, 0);	1114	downheap ((WT *)periodics, periodiccnt, 0);
1031	}	1115	}
1032	else if (w->interval)	1116	else if (w->interval)
1033	{	1117	{
…		…
1080	ev_rt_now = ev_time ();	1164	ev_rt_now = ev_time ();
1081	return 1;	1165	return 1;
1082	}	1166	}
1083	}	1167	}
1084		1168
1085	static void	1169	inline void
1086	time_update (EV_P)	1170	time_update (EV_P)
1087	{	1171	{
1088	int i;	1172	int i;
1089		1173
1090	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
…		…
1151	ev_loop (EV_P_ int flags)	1235	ev_loop (EV_P_ int flags)
1152	{	1236	{
1153	double block;	1237	double block;
1154	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1238	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1155		1239
1156	do	1240	while (activecnt)
1157	{	1241	{
1158	/* queue check watchers (and execute them) */	1242	/* queue check watchers (and execute them) */
1159	if (expect_false (preparecnt))	1243	if (expect_false (preparecnt))
1160	{	1244	{
1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1245	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1189	{	1273	{
1190	block = MAX_BLOCKTIME;	1274	block = MAX_BLOCKTIME;
1191		1275
1192	if (timercnt)	1276	if (timercnt)
1193	{	1277	{
1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1278	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1195	if (block > to) block = to;	1279	if (block > to) block = to;
1196	}	1280	}
1197		1281
1198	#if EV_PERIODICS	1282	#if EV_PERIODICS
1199	if (periodiccnt)	1283	if (periodiccnt)
1200	{	1284	{
1201	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;
1202	if (block > to) block = to;	1286	if (block > to) block = to;
1203	}	1287	}
1204	#endif	1288	#endif
1205		1289
1206	if (block < 0.) block = 0.;	1290	if (expect_false (block < 0.)) block = 0.;
1207	}	1291	}
1208		1292
1209	method_poll (EV_A_ block);	1293	backend_poll (EV_A_ block);
1210		1294
1211	/* update ev_rt_now, do magic */	1295	/* update ev_rt_now, do magic */
1212	time_update (EV_A);	1296	time_update (EV_A);
1213		1297
1214	/* queue pending timers and reschedule them */	1298	/* queue pending timers and reschedule them */
…		…
1220	/* queue idle watchers unless io or timers are pending */	1304	/* queue idle watchers unless io or timers are pending */
1221	if (idlecnt && !any_pending (EV_A))	1305	if (idlecnt && !any_pending (EV_A))
1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1306	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1223		1307
1224	/* queue check watchers, to be executed first */	1308	/* queue check watchers, to be executed first */
1225	if (checkcnt)	1309	if (expect_false (checkcnt))
1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1310	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1227		1311
1228	call_pending (EV_A);	1312	call_pending (EV_A);
		1313
		1314	if (expect_false (loop_done))
		1315	break;
1229	}	1316	}
1230	while (activecnt && !loop_done);
1231		1317
1232	if (loop_done != 2)	1318	if (loop_done != 2)
1233	loop_done = 0;	1319	loop_done = 0;
1234	}	1320	}
1235		1321
…		…
1295	void	1381	void
1296	ev_io_start (EV_P_ struct ev_io *w)	1382	ev_io_start (EV_P_ struct ev_io *w)
1297	{	1383	{
1298	int fd = w->fd;	1384	int fd = w->fd;
1299		1385
1300	if (ev_is_active (w))	1386	if (expect_false (ev_is_active (w)))
1301	return;	1387	return;
1302		1388
1303	assert (("ev_io_start called with negative fd", fd >= 0));	1389	assert (("ev_io_start called with negative fd", fd >= 0));
1304		1390
1305	ev_start (EV_A_ (W)w, 1);	1391	ev_start (EV_A_ (W)w, 1);
…		…
1311		1397
1312	void	1398	void
1313	ev_io_stop (EV_P_ struct ev_io *w)	1399	ev_io_stop (EV_P_ struct ev_io *w)
1314	{	1400	{
1315	ev_clear_pending (EV_A_ (W)w);	1401	ev_clear_pending (EV_A_ (W)w);
1316	if (!ev_is_active (w))	1402	if (expect_false (!ev_is_active (w)))
1317	return;	1403	return;
1318		1404
1319	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));
1320		1406
1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1407	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1325	}	1411	}
1326		1412
1327	void	1413	void
1328	ev_timer_start (EV_P_ struct ev_timer *w)	1414	ev_timer_start (EV_P_ struct ev_timer *w)
1329	{	1415	{
1330	if (ev_is_active (w))	1416	if (expect_false (ev_is_active (w)))
1331	return;	1417	return;
1332		1418
1333	((WT)w)->at += mn_now;	1419	((WT)w)->at += mn_now;
1334		1420
1335	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.));
1336		1422
1337	ev_start (EV_A_ (W)w, ++timercnt);	1423	ev_start (EV_A_ (W)w, ++timercnt);
1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1424	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1339	timers [timercnt - 1] = w;	1425	timers [timercnt - 1] = w;
1340	upheap ((WT *)timers, timercnt - 1);	1426	upheap ((WT *)timers, timercnt - 1);
1341		1427
1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1428	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1343	}	1429	}
1344		1430
1345	void	1431	void
1346	ev_timer_stop (EV_P_ struct ev_timer *w)	1432	ev_timer_stop (EV_P_ struct ev_timer *w)
1347	{	1433	{
1348	ev_clear_pending (EV_A_ (W)w);	1434	ev_clear_pending (EV_A_ (W)w);
1349	if (!ev_is_active (w))	1435	if (expect_false (!ev_is_active (w)))
1350	return;	1436	return;
1351		1437
1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1438	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1353		1439
1354	if (((W)w)->active < timercnt--)	1440	if (expect_true (((W)w)->active < timercnt--))
1355	{	1441	{
1356	timers [((W)w)->active - 1] = timers [timercnt];	1442	timers [((W)w)->active - 1] = timers [timercnt];
1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1443	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1358	}	1444	}
1359		1445
1360	((WT)w)->at -= mn_now;	1446	((WT)w)->at -= mn_now;
1361		1447
1362	ev_stop (EV_A_ (W)w);	1448	ev_stop (EV_A_ (W)w);
…		…
1366	ev_timer_again (EV_P_ struct ev_timer *w)	1452	ev_timer_again (EV_P_ struct ev_timer *w)
1367	{	1453	{
1368	if (ev_is_active (w))	1454	if (ev_is_active (w))
1369	{	1455	{
1370	if (w->repeat)	1456	if (w->repeat)
		1457	{
		1458	((WT)w)->at = mn_now + w->repeat;
1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1460	}
1372	else	1461	else
1373	ev_timer_stop (EV_A_ w);	1462	ev_timer_stop (EV_A_ w);
1374	}	1463	}
1375	else if (w->repeat)	1464	else if (w->repeat)
		1465	{
		1466	w->at = w->repeat;
1376	ev_timer_start (EV_A_ w);	1467	ev_timer_start (EV_A_ w);
		1468	}
1377	}	1469	}
1378		1470
1379	#if EV_PERIODICS	1471	#if EV_PERIODICS
1380	void	1472	void
1381	ev_periodic_start (EV_P_ struct ev_periodic *w)	1473	ev_periodic_start (EV_P_ struct ev_periodic *w)
1382	{	1474	{
1383	if (ev_is_active (w))	1475	if (expect_false (ev_is_active (w)))
1384	return;	1476	return;
1385		1477
1386	if (w->reschedule_cb)	1478	if (w->reschedule_cb)
1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1479	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1388	else if (w->interval)	1480	else if (w->interval)
…		…
1391	/* 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 */
1392	((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;
1393	}	1485	}
1394		1486
1395	ev_start (EV_A_ (W)w, ++periodiccnt);	1487	ev_start (EV_A_ (W)w, ++periodiccnt);
1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1488	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1397	periodics [periodiccnt - 1] = w;	1489	periodics [periodiccnt - 1] = w;
1398	upheap ((WT *)periodics, periodiccnt - 1);	1490	upheap ((WT *)periodics, periodiccnt - 1);
1399		1491
1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1492	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1401	}	1493	}
1402		1494
1403	void	1495	void
1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1496	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1405	{	1497	{
1406	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1407	if (!ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1408	return;	1500	return;
1409		1501
1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1502	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1411		1503
1412	if (((W)w)->active < periodiccnt--)	1504	if (expect_true (((W)w)->active < periodiccnt--))
1413	{	1505	{
1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1506	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1507	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1416	}	1508	}
1417		1509
1418	ev_stop (EV_A_ (W)w);	1510	ev_stop (EV_A_ (W)w);
1419	}	1511	}
1420		1512
…		…
1428	#endif	1520	#endif
1429		1521
1430	void	1522	void
1431	ev_idle_start (EV_P_ struct ev_idle *w)	1523	ev_idle_start (EV_P_ struct ev_idle *w)
1432	{	1524	{
1433	if (ev_is_active (w))	1525	if (expect_false (ev_is_active (w)))
1434	return;	1526	return;
1435		1527
1436	ev_start (EV_A_ (W)w, ++idlecnt);	1528	ev_start (EV_A_ (W)w, ++idlecnt);
1437	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1529	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1438	idles [idlecnt - 1] = w;	1530	idles [idlecnt - 1] = w;
1439	}	1531	}
1440		1532
1441	void	1533	void
1442	ev_idle_stop (EV_P_ struct ev_idle *w)	1534	ev_idle_stop (EV_P_ struct ev_idle *w)
1443	{	1535	{
1444	ev_clear_pending (EV_A_ (W)w);	1536	ev_clear_pending (EV_A_ (W)w);
1445	if (ev_is_active (w))	1537	if (expect_false (!ev_is_active (w)))
1446	return;	1538	return;
1447		1539
1448	idles [((W)w)->active - 1] = idles [--idlecnt];	1540	idles [((W)w)->active - 1] = idles [--idlecnt];
1449	ev_stop (EV_A_ (W)w);	1541	ev_stop (EV_A_ (W)w);
1450	}	1542	}
1451		1543
1452	void	1544	void
1453	ev_prepare_start (EV_P_ struct ev_prepare *w)	1545	ev_prepare_start (EV_P_ struct ev_prepare *w)
1454	{	1546	{
1455	if (ev_is_active (w))	1547	if (expect_false (ev_is_active (w)))
1456	return;	1548	return;
1457		1549
1458	ev_start (EV_A_ (W)w, ++preparecnt);	1550	ev_start (EV_A_ (W)w, ++preparecnt);
1459	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1551	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1460	prepares [preparecnt - 1] = w;	1552	prepares [preparecnt - 1] = w;
1461	}	1553	}
1462		1554
1463	void	1555	void
1464	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1556	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1465	{	1557	{
1466	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1467	if (ev_is_active (w))	1559	if (expect_false (!ev_is_active (w)))
1468	return;	1560	return;
1469		1561
1470	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1562	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1471	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1472	}	1564	}
1473		1565
1474	void	1566	void
1475	ev_check_start (EV_P_ struct ev_check *w)	1567	ev_check_start (EV_P_ struct ev_check *w)
1476	{	1568	{
1477	if (ev_is_active (w))	1569	if (expect_false (ev_is_active (w)))
1478	return;	1570	return;
1479		1571
1480	ev_start (EV_A_ (W)w, ++checkcnt);	1572	ev_start (EV_A_ (W)w, ++checkcnt);
1481	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1573	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1482	checks [checkcnt - 1] = w;	1574	checks [checkcnt - 1] = w;
1483	}	1575	}
1484		1576
1485	void	1577	void
1486	ev_check_stop (EV_P_ struct ev_check *w)	1578	ev_check_stop (EV_P_ struct ev_check *w)
1487	{	1579	{
1488	ev_clear_pending (EV_A_ (W)w);	1580	ev_clear_pending (EV_A_ (W)w);
1489	if (!ev_is_active (w))	1581	if (expect_false (!ev_is_active (w)))
1490	return;	1582	return;
1491		1583
1492	checks [((W)w)->active - 1] = checks [--checkcnt];	1584	checks [((W)w)->active - 1] = checks [--checkcnt];
1493	ev_stop (EV_A_ (W)w);	1585	ev_stop (EV_A_ (W)w);
1494	}	1586	}
…		…
1499		1591
1500	void	1592	void
1501	ev_signal_start (EV_P_ struct ev_signal *w)	1593	ev_signal_start (EV_P_ struct ev_signal *w)
1502	{	1594	{
1503	#if EV_MULTIPLICITY	1595	#if EV_MULTIPLICITY
1504	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));
1505	#endif	1597	#endif
1506	if (ev_is_active (w))	1598	if (expect_false (ev_is_active (w)))
1507	return;	1599	return;
1508		1600
1509	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));
1510		1602
1511	ev_start (EV_A_ (W)w, 1);	1603	ev_start (EV_A_ (W)w, 1);
1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1604	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1605	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1514		1606
1515	if (!((WL)w)->next)	1607	if (!((WL)w)->next)
1516	{	1608	{
1517	#if WIN32	1609	#if _WIN32
1518	signal (w->signum, sighandler);	1610	signal (w->signum, sighandler);
1519	#else	1611	#else
1520	struct sigaction sa;	1612	struct sigaction sa;
1521	sa.sa_handler = sighandler;	1613	sa.sa_handler = sighandler;
1522	sigfillset (&sa.sa_mask);	1614	sigfillset (&sa.sa_mask);
…		…
1528		1620
1529	void	1621	void
1530	ev_signal_stop (EV_P_ struct ev_signal *w)	1622	ev_signal_stop (EV_P_ struct ev_signal *w)
1531	{	1623	{
1532	ev_clear_pending (EV_A_ (W)w);	1624	ev_clear_pending (EV_A_ (W)w);
1533	if (!ev_is_active (w))	1625	if (expect_false (!ev_is_active (w)))
1534	return;	1626	return;
1535		1627
1536	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1628	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1537	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1538		1630
…		…
1542		1634
1543	void	1635	void
1544	ev_child_start (EV_P_ struct ev_child *w)	1636	ev_child_start (EV_P_ struct ev_child *w)
1545	{	1637	{
1546	#if EV_MULTIPLICITY	1638	#if EV_MULTIPLICITY
1547	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));
1548	#endif	1640	#endif
1549	if (ev_is_active (w))	1641	if (expect_false (ev_is_active (w)))
1550	return;	1642	return;
1551		1643
1552	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1553	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1645	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1554	}	1646	}
1555		1647
1556	void	1648	void
1557	ev_child_stop (EV_P_ struct ev_child *w)	1649	ev_child_stop (EV_P_ struct ev_child *w)
1558	{	1650	{
1559	ev_clear_pending (EV_A_ (W)w);	1651	ev_clear_pending (EV_A_ (W)w);
1560	if (!ev_is_active (w))	1652	if (expect_false (!ev_is_active (w)))
1561	return;	1653	return;
1562		1654
1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1655	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1564	ev_stop (EV_A_ (W)w);	1656	ev_stop (EV_A_ (W)w);
1565	}	1657	}
…		…
1602	void	1694	void
1603	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)
1604	{	1696	{
1605	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));
1606		1698
1607	if (!once)	1699	if (expect_false (!once))
		1700	{
1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1701	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1609	else	1702	return;
1610	{	1703	}
		1704
1611	once->cb = cb;	1705	once->cb = cb;
1612	once->arg = arg;	1706	once->arg = arg;
1613		1707
1614	ev_init (&once->io, once_cb_io);	1708	ev_init (&once->io, once_cb_io);
1615	if (fd >= 0)	1709	if (fd >= 0)
1616	{	1710	{
1617	ev_io_set (&once->io, fd, events);	1711	ev_io_set (&once->io, fd, events);
1618	ev_io_start (EV_A_ &once->io);	1712	ev_io_start (EV_A_ &once->io);
1619	}	1713	}
1620		1714
1621	ev_init (&once->to, once_cb_to);	1715	ev_init (&once->to, once_cb_to);
1622	if (timeout >= 0.)	1716	if (timeout >= 0.)
1623	{	1717	{
1624	ev_timer_set (&once->to, timeout, 0.);	1718	ev_timer_set (&once->to, timeout, 0.);
1625	ev_timer_start (EV_A_ &once->to);	1719	ev_timer_start (EV_A_ &once->to);
1626	}
1627	}	1720	}
1628	}	1721	}
1629		1722
1630	#ifdef __cplusplus	1723	#ifdef __cplusplus
1631	}	1724	}

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Comparing libev/ev.c (file contents): Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC vs. Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC vs.
Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC