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

Comparing libev/ev.c (file contents):
Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 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;
…		…
240	#include "ev_vars.h"	286	#include "ev_vars.h"
241	#undef VAR	287	#undef VAR
242	};	288	};
243	#include "ev_wrap.h"	289	#include "ev_wrap.h"
244		290
245	struct ev_loop default_loop_struct;	291	static struct ev_loop default_loop_struct;
246	static struct ev_loop *default_loop;	292	struct ev_loop *ev_default_loop_ptr;
247		293
248	#else	294	#else
249		295
250	ev_tstamp ev_rt_now;	296	ev_tstamp ev_rt_now;
251	#define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
252	#include "ev_vars.h"	298	#include "ev_vars.h"
253	#undef VAR	299	#undef VAR
254		300
255	static int default_loop;	301	static int ev_default_loop_ptr;
256		302
257	#endif	303	#endif
258		304
259	/*****************************************************************************/	305	/*****************************************************************************/
260		306
…		…
293	{	339	{
294	return ev_rt_now;	340	return ev_rt_now;
295	}	341	}
296	#endif	342	#endif
297		343
298	#define array_roundsize(type,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
299		345
300	#define array_needsize(type,base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
301	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
302	{ \	348	{ \
303	int newcnt = cur; \	349	int newcnt = cur; \
…		…
318	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
319	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
320	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
321	}	367	}
322		368
323	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
324	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
325	#define array_free_microshit(stem) \
326	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
327
328	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
329	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;
330		371
331	/*****************************************************************************/	372	/*****************************************************************************/
332		373
…		…
346	void	387	void
347	ev_feed_event (EV_P_ void *w, int revents)	388	ev_feed_event (EV_P_ void *w, int revents)
348	{	389	{
349	W w_ = (W)w;	390	W w_ = (W)w;
350		391
351	if (w_->pending)	392	if (expect_false (w_->pending))
352	{	393	{
353	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
354	return;	395	return;
355	}	396	}
356		397
357	w_->pending = ++pendingcnt [ABSPRI (w_)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
358	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);
359	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
360	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
361	}	402	}
362		403
363	static void	404	static void
…		…
390	fd_event (EV_A_ fd, revents);	431	fd_event (EV_A_ fd, revents);
391	}	432	}
392		433
393	/*****************************************************************************/	434	/*****************************************************************************/
394		435
395	static void	436	inline void
396	fd_reify (EV_P)	437	fd_reify (EV_P)
397	{	438	{
398	int i;	439	int i;
399		440
400	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
406	int events = 0;	447	int events = 0;
407		448
408	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)
409	events \|= w->events;	450	events \|= w->events;
410		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
411	anfd->reify = 0;	461	anfd->reify = 0;
412		462
413	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
414	anfd->events = events;	464	anfd->events = events;
415	}	465	}
416		466
417	fdchangecnt = 0;	467	fdchangecnt = 0;
418	}	468	}
419		469
420	static void	470	static void
421	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
422	{	472	{
423	if (anfds [fd].reify)	473	if (expect_false (anfds [fd].reify))
424	return;	474	return;
425		475
426	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
427		477
428	++fdchangecnt;	478	++fdchangecnt;
429	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
430	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
431	}	481	}
432		482
433	static void	483	static void
434	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
440	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
441	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);
442	}	492	}
443	}	493	}
444		494
445	static int	495	inline int
446	fd_valid (int fd)	496	fd_valid (int fd)
447	{	497	{
448	#ifdef WIN32	498	#ifdef _WIN32
449	return !!win32_get_osfhandle (fd);	499	return _get_osfhandle (fd) != -1;
450	#else	500	#else
451	return fcntl (fd, F_GETFD) != -1;	501	return fcntl (fd, F_GETFD) != -1;
452	#endif	502	#endif
453	}	503	}
454		504
…		…
476	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
477	return;	527	return;
478	}	528	}
479	}	529	}
480		530
481	/* 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 */
482	static void	532	static void
483	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
484	{	534	{
485	int fd;	535	int fd;
486		536
…		…
571	}	621	}
572		622
573	static void	623	static void
574	sighandler (int signum)	624	sighandler (int signum)
575	{	625	{
576	#if WIN32	626	#if _WIN32
577	signal (signum, sighandler);	627	signal (signum, sighandler);
578	#endif	628	#endif
579		629
580	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
581		631
582	if (!gotsig)	632	if (!gotsig)
583	{	633	{
584	int old_errno = errno;	634	int old_errno = errno;
585	gotsig = 1;	635	gotsig = 1;
586	#ifdef WIN32
587	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
588	#else
589	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
590	#endif
591	errno = old_errno;	637	errno = old_errno;
592	}	638	}
593	}	639	}
594		640
595	void	641	void
596	ev_feed_signal_event (EV_P_ int signum)	642	ev_feed_signal_event (EV_P_ int signum)
597	{	643	{
598	WL w;	644	WL w;
599		645
600	#if EV_MULTIPLICITY	646	#if EV_MULTIPLICITY
601	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));
602	#endif	648	#endif
603		649
604	--signum;	650	--signum;
605		651
606	if (signum < 0 \|\| signum >= signalmax)	652	if (signum < 0 \|\| signum >= signalmax)
…		…
615	static void	661	static void
616	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
617	{	663	{
618	int signum;	664	int signum;
619		665
620	#ifdef WIN32
621	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
622	#else
623	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
624	#endif
625	gotsig = 0;	667	gotsig = 0;
626		668
627	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
628	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
629	ev_feed_signal_event (EV_A_ signum + 1);	671	ev_feed_signal_event (EV_A_ signum + 1);
630	}	672	}
631		673
632	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
633	siginit (EV_P)	687	siginit (EV_P)
634	{	688	{
635	#ifndef WIN32	689	fd_intern (sigpipe [0]);
636	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
637	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
638
639	/* rather than sort out wether we really need nb, set it */
640	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
641	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
642	#endif
643		691
644	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
645	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
646	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
647	}	695	}
648		696
649	/*****************************************************************************/	697	/*****************************************************************************/
650		698
651	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
652		700
653	#ifndef WIN32	701	#ifndef _WIN32
654		702
655	static struct ev_signal childev;	703	static struct ev_signal childev;
656		704
657	#ifndef WCONTINUED	705	#ifndef WCONTINUED
658	# define WCONTINUED 0	706	# define WCONTINUED 0
…		…
679	int pid, status;	727	int pid, status;
680		728
681	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
682	{	730	{
683	/* make sure we are called again until all childs have been reaped */	731	/* make sure we are called again until all childs have been reaped */
		732	/* we need to do it this way so that the callback gets called before we continue */
684	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	733	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
685		734
686	child_reap (EV_A_ sw, pid, pid, status);	735	child_reap (EV_A_ sw, pid, pid, status);
687	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	736	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
688	}	737	}
689	}	738	}
690		739
691	#endif	740	#endif
692		741
693	/*****************************************************************************/	742	/*****************************************************************************/
694		743
		744	#if EV_USE_PORT
		745	# include "ev_port.c"
		746	#endif
695	#if EV_USE_KQUEUE	747	#if EV_USE_KQUEUE
696	# include "ev_kqueue.c"	748	# include "ev_kqueue.c"
697	#endif	749	#endif
698	#if EV_USE_EPOLL	750	#if EV_USE_EPOLL
699	# include "ev_epoll.c"	751	# include "ev_epoll.c"
…		…
719		771
720	/* return true if we are running with elevated privileges and should ignore env variables */	772	/* return true if we are running with elevated privileges and should ignore env variables */
721	static int	773	static int
722	enable_secure (void)	774	enable_secure (void)
723	{	775	{
724	#ifdef WIN32	776	#ifdef _WIN32
725	return 0;	777	return 0;
726	#else	778	#else
727	return getuid () != geteuid ()	779	return getuid () != geteuid ()
728	\|\| getgid () != getegid ();	780	\|\| getgid () != getegid ();
729	#endif	781	#endif
730	}	782	}
731		783
732	int	784	unsigned int
733	ev_method (EV_P)	785	ev_supported_backends (void)
734	{	786	{
735	return method;	787	unsigned int flags = 0;
736	}
737		788
738	static void	789	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
739	loop_init (EV_P_ int methods)	790	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		791	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		792	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		793	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		794
		795	return flags;
		796	}
		797
		798	unsigned int
		799	ev_recommended_backends (void)
740	{	800	{
741	if (!method)	801	unsigned int flags = ev_supported_backends ();
		802
		803	#ifndef __NetBSD__
		804	/* kqueue is borked on everything but netbsd apparently */
		805	/* it usually doesn't work correctly on anything but sockets and pipes */
		806	flags &= ~EVBACKEND_KQUEUE;
		807	#endif
		808	#ifdef __APPLE__
		809	// flags &= ~EVBACKEND_KQUEUE; for documentation
		810	flags &= ~EVBACKEND_POLL;
		811	#endif
		812
		813	return flags;
		814	}
		815
		816	unsigned int
		817	ev_backend (EV_P)
		818	{
		819	return backend;
		820	}
		821
		822	static void
		823	loop_init (EV_P_ unsigned int flags)
		824	{
		825	if (!backend)
742	{	826	{
743	#if EV_USE_MONOTONIC	827	#if EV_USE_MONOTONIC
744	{	828	{
745	struct timespec ts;	829	struct timespec ts;
746	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	830	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
751	ev_rt_now = ev_time ();	835	ev_rt_now = ev_time ();
752	mn_now = get_clock ();	836	mn_now = get_clock ();
753	now_floor = mn_now;	837	now_floor = mn_now;
754	rtmn_diff = ev_rt_now - mn_now;	838	rtmn_diff = ev_rt_now - mn_now;
755		839
756	if (methods == EVMETHOD_AUTO)	840	if (!(flags & EVFLAG_NOENV)
757	if (!enable_secure () && getenv ("LIBEV_METHODS"))	841	&& !enable_secure ()
		842	&& getenv ("LIBEV_FLAGS"))
758	methods = atoi (getenv ("LIBEV_METHODS"));	843	flags = atoi (getenv ("LIBEV_FLAGS"));
759	else
760	methods = EVMETHOD_ANY;
761		844
762	method = 0;	845	if (!(flags & 0x0000ffffUL))
763	#if EV_USE_WIN32	846	flags \|= ev_recommended_backends ();
764	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	847
		848	backend = 0;
		849	#if EV_USE_PORT
		850	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
765	#endif	851	#endif
766	#if EV_USE_KQUEUE	852	#if EV_USE_KQUEUE
767	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	853	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
768	#endif	854	#endif
769	#if EV_USE_EPOLL	855	#if EV_USE_EPOLL
770	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	856	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
771	#endif	857	#endif
772	#if EV_USE_POLL	858	#if EV_USE_POLL
773	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	859	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
774	#endif	860	#endif
775	#if EV_USE_SELECT	861	#if EV_USE_SELECT
776	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	862	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
777	#endif	863	#endif
778		864
779	ev_init (&sigev, sigcb);	865	ev_init (&sigev, sigcb);
780	ev_set_priority (&sigev, EV_MAXPRI);	866	ev_set_priority (&sigev, EV_MAXPRI);
781	}	867	}
782	}	868	}
783		869
784	void	870	static void
785	loop_destroy (EV_P)	871	loop_destroy (EV_P)
786	{	872	{
787	int i;	873	int i;
788		874
789	#if EV_USE_WIN32	875	#if EV_USE_PORT
790	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	876	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
791	#endif	877	#endif
792	#if EV_USE_KQUEUE	878	#if EV_USE_KQUEUE
793	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	879	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
794	#endif	880	#endif
795	#if EV_USE_EPOLL	881	#if EV_USE_EPOLL
796	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	882	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
797	#endif	883	#endif
798	#if EV_USE_POLL	884	#if EV_USE_POLL
799	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	885	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
800	#endif	886	#endif
801	#if EV_USE_SELECT	887	#if EV_USE_SELECT
802	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	888	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
803	#endif	889	#endif
804		890
805	for (i = NUMPRI; i--; )	891	for (i = NUMPRI; i--; )
806	array_free (pending, [i]);	892	array_free (pending, [i]);
807		893
808	/* have to use the microsoft-never-gets-it-right macro */	894	/* have to use the microsoft-never-gets-it-right macro */
809	array_free_microshit (fdchange);	895	array_free (fdchange, EMPTY0);
810	array_free_microshit (timer);	896	array_free (timer, EMPTY0);
811	#if EV_PERIODICS	897	#if EV_PERIODICS
812	array_free_microshit (periodic);	898	array_free (periodic, EMPTY0);
813	#endif	899	#endif
814	array_free_microshit (idle);	900	array_free (idle, EMPTY0);
815	array_free_microshit (prepare);	901	array_free (prepare, EMPTY0);
816	array_free_microshit (check);	902	array_free (check, EMPTY0);
817		903
818	method = 0;	904	backend = 0;
819	}	905	}
820		906
821	static void	907	static void
822	loop_fork (EV_P)	908	loop_fork (EV_P)
823	{	909	{
		910	#if EV_USE_PORT
		911	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		912	#endif
		913	#if EV_USE_KQUEUE
		914	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		915	#endif
824	#if EV_USE_EPOLL	916	#if EV_USE_EPOLL
825	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	917	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
826	#endif
827	#if EV_USE_KQUEUE
828	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
829	#endif	918	#endif
830		919
831	if (ev_is_active (&sigev))	920	if (ev_is_active (&sigev))
832	{	921	{
833	/* default loop */	922	/* default loop */
…		…
846	postfork = 0;	935	postfork = 0;
847	}	936	}
848		937
849	#if EV_MULTIPLICITY	938	#if EV_MULTIPLICITY
850	struct ev_loop *	939	struct ev_loop *
851	ev_loop_new (int methods)	940	ev_loop_new (unsigned int flags)
852	{	941	{
853	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	942	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
854		943
855	memset (loop, 0, sizeof (struct ev_loop));	944	memset (loop, 0, sizeof (struct ev_loop));
856		945
857	loop_init (EV_A_ methods);	946	loop_init (EV_A_ flags);
858		947
859	if (ev_method (EV_A))	948	if (ev_backend (EV_A))
860	return loop;	949	return loop;
861		950
862	return 0;	951	return 0;
863	}	952	}
864		953
…		…
877		966
878	#endif	967	#endif
879		968
880	#if EV_MULTIPLICITY	969	#if EV_MULTIPLICITY
881	struct ev_loop *	970	struct ev_loop *
		971	ev_default_loop_init (unsigned int flags)
882	#else	972	#else
883	int	973	int
		974	ev_default_loop (unsigned int flags)
884	#endif	975	#endif
885	ev_default_loop (int methods)
886	{	976	{
887	if (sigpipe [0] == sigpipe [1])	977	if (sigpipe [0] == sigpipe [1])
888	if (pipe (sigpipe))	978	if (pipe (sigpipe))
889	return 0;	979	return 0;
890		980
891	if (!default_loop)	981	if (!ev_default_loop_ptr)
892	{	982	{
893	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
894	struct ev_loop *loop = default_loop = &default_loop_struct;	984	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
895	#else	985	#else
896	default_loop = 1;	986	ev_default_loop_ptr = 1;
897	#endif	987	#endif
898		988
899	loop_init (EV_A_ methods);	989	loop_init (EV_A_ flags);
900		990
901	if (ev_method (EV_A))	991	if (ev_backend (EV_A))
902	{	992	{
903	siginit (EV_A);	993	siginit (EV_A);
904		994
905	#ifndef WIN32	995	#ifndef _WIN32
906	ev_signal_init (&childev, childcb, SIGCHLD);	996	ev_signal_init (&childev, childcb, SIGCHLD);
907	ev_set_priority (&childev, EV_MAXPRI);	997	ev_set_priority (&childev, EV_MAXPRI);
908	ev_signal_start (EV_A_ &childev);	998	ev_signal_start (EV_A_ &childev);
909	ev_unref (EV_A); /* child watcher should not keep loop alive */	999	ev_unref (EV_A); /* child watcher should not keep loop alive */
910	#endif	1000	#endif
911	}	1001	}
912	else	1002	else
913	default_loop = 0;	1003	ev_default_loop_ptr = 0;
914	}	1004	}
915		1005
916	return default_loop;	1006	return ev_default_loop_ptr;
917	}	1007	}
918		1008
919	void	1009	void
920	ev_default_destroy (void)	1010	ev_default_destroy (void)
921	{	1011	{
922	#if EV_MULTIPLICITY	1012	#if EV_MULTIPLICITY
923	struct ev_loop *loop = default_loop;	1013	struct ev_loop *loop = ev_default_loop_ptr;
924	#endif	1014	#endif
925		1015
926	#ifndef WIN32	1016	#ifndef _WIN32
927	ev_ref (EV_A); /* child watcher */	1017	ev_ref (EV_A); /* child watcher */
928	ev_signal_stop (EV_A_ &childev);	1018	ev_signal_stop (EV_A_ &childev);
929	#endif	1019	#endif
930		1020
931	ev_ref (EV_A); /* signal watcher */	1021	ev_ref (EV_A); /* signal watcher */
…		…
939		1029
940	void	1030	void
941	ev_default_fork (void)	1031	ev_default_fork (void)
942	{	1032	{
943	#if EV_MULTIPLICITY	1033	#if EV_MULTIPLICITY
944	struct ev_loop *loop = default_loop;	1034	struct ev_loop *loop = ev_default_loop_ptr;
945	#endif	1035	#endif
946		1036
947	if (method)	1037	if (backend)
948	postfork = 1;	1038	postfork = 1;
949	}	1039	}
950		1040
951	/*****************************************************************************/	1041	/*****************************************************************************/
952		1042
…		…
960	return 1;	1050	return 1;
961		1051
962	return 0;	1052	return 0;
963	}	1053	}
964		1054
965	static void	1055	inline void
966	call_pending (EV_P)	1056	call_pending (EV_P)
967	{	1057	{
968	int pri;	1058	int pri;
969		1059
970	for (pri = NUMPRI; pri--; )	1060	for (pri = NUMPRI; pri--; )
971	while (pendingcnt [pri])	1061	while (pendingcnt [pri])
972	{	1062	{
973	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1063	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
974		1064
975	if (p->w)	1065	if (expect_true (p->w))
976	{	1066	{
977	p->w->pending = 0;	1067	p->w->pending = 0;
978	EV_CB_INVOKE (p->w, p->events);	1068	EV_CB_INVOKE (p->w, p->events);
979	}	1069	}
980	}	1070	}
981	}	1071	}
982		1072
983	static void	1073	inline void
984	timers_reify (EV_P)	1074	timers_reify (EV_P)
985	{	1075	{
986	while (timercnt && ((WT)timers [0])->at <= mn_now)	1076	while (timercnt && ((WT)timers [0])->at <= mn_now)
987	{	1077	{
988	struct ev_timer *w = timers [0];	1078	struct ev_timer *w = timers [0];
…		…
1006	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1096	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1007	}	1097	}
1008	}	1098	}
1009		1099
1010	#if EV_PERIODICS	1100	#if EV_PERIODICS
1011	static void	1101	inline void
1012	periodics_reify (EV_P)	1102	periodics_reify (EV_P)
1013	{	1103	{
1014	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1104	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1015	{	1105	{
1016	struct ev_periodic *w = periodics [0];	1106	struct ev_periodic *w = periodics [0];
…		…
1018	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1108	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1019		1109
1020	/* first reschedule or stop timer */	1110	/* first reschedule or stop timer */
1021	if (w->reschedule_cb)	1111	if (w->reschedule_cb)
1022	{	1112	{
1023	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1113	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1024
1025	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1114	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1026	downheap ((WT *)periodics, periodiccnt, 0);	1115	downheap ((WT *)periodics, periodiccnt, 0);
1027	}	1116	}
1028	else if (w->interval)	1117	else if (w->interval)
1029	{	1118	{
…		…
1076	ev_rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
1077	return 1;	1166	return 1;
1078	}	1167	}
1079	}	1168	}
1080		1169
1081	static void	1170	inline void
1082	time_update (EV_P)	1171	time_update (EV_P)
1083	{	1172	{
1084	int i;	1173	int i;
1085		1174
1086	#if EV_USE_MONOTONIC	1175	#if EV_USE_MONOTONIC
…		…
1147	ev_loop (EV_P_ int flags)	1236	ev_loop (EV_P_ int flags)
1148	{	1237	{
1149	double block;	1238	double block;
1150	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1239	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1151		1240
1152	do	1241	while (activecnt)
1153	{	1242	{
1154	/* queue check watchers (and execute them) */	1243	/* queue check watchers (and execute them) */
1155	if (expect_false (preparecnt))	1244	if (expect_false (preparecnt))
1156	{	1245	{
1157	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1246	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1185	{	1274	{
1186	block = MAX_BLOCKTIME;	1275	block = MAX_BLOCKTIME;
1187		1276
1188	if (timercnt)	1277	if (timercnt)
1189	{	1278	{
1190	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1279	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1191	if (block > to) block = to;	1280	if (block > to) block = to;
1192	}	1281	}
1193		1282
1194	#if EV_PERIODICS	1283	#if EV_PERIODICS
1195	if (periodiccnt)	1284	if (periodiccnt)
1196	{	1285	{
1197	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1286	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1198	if (block > to) block = to;	1287	if (block > to) block = to;
1199	}	1288	}
1200	#endif	1289	#endif
1201		1290
1202	if (block < 0.) block = 0.;	1291	if (expect_false (block < 0.)) block = 0.;
1203	}	1292	}
1204		1293
1205	method_poll (EV_A_ block);	1294	backend_poll (EV_A_ block);
1206		1295
1207	/* update ev_rt_now, do magic */	1296	/* update ev_rt_now, do magic */
1208	time_update (EV_A);	1297	time_update (EV_A);
1209		1298
1210	/* queue pending timers and reschedule them */	1299	/* queue pending timers and reschedule them */
…		…
1216	/* queue idle watchers unless io or timers are pending */	1305	/* queue idle watchers unless io or timers are pending */
1217	if (idlecnt && !any_pending (EV_A))	1306	if (idlecnt && !any_pending (EV_A))
1218	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1307	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1219		1308
1220	/* queue check watchers, to be executed first */	1309	/* queue check watchers, to be executed first */
1221	if (checkcnt)	1310	if (expect_false (checkcnt))
1222	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1311	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1223		1312
1224	call_pending (EV_A);	1313	call_pending (EV_A);
		1314
		1315	if (expect_false (loop_done))
		1316	break;
1225	}	1317	}
1226	while (activecnt && !loop_done);
1227		1318
1228	if (loop_done != 2)	1319	if (loop_done != 2)
1229	loop_done = 0;	1320	loop_done = 0;
1230	}	1321	}
1231		1322
…		…
1291	void	1382	void
1292	ev_io_start (EV_P_ struct ev_io *w)	1383	ev_io_start (EV_P_ struct ev_io *w)
1293	{	1384	{
1294	int fd = w->fd;	1385	int fd = w->fd;
1295		1386
1296	if (ev_is_active (w))	1387	if (expect_false (ev_is_active (w)))
1297	return;	1388	return;
1298		1389
1299	assert (("ev_io_start called with negative fd", fd >= 0));	1390	assert (("ev_io_start called with negative fd", fd >= 0));
1300		1391
1301	ev_start (EV_A_ (W)w, 1);	1392	ev_start (EV_A_ (W)w, 1);
…		…
1307		1398
1308	void	1399	void
1309	ev_io_stop (EV_P_ struct ev_io *w)	1400	ev_io_stop (EV_P_ struct ev_io *w)
1310	{	1401	{
1311	ev_clear_pending (EV_A_ (W)w);	1402	ev_clear_pending (EV_A_ (W)w);
1312	if (!ev_is_active (w))	1403	if (expect_false (!ev_is_active (w)))
1313	return;	1404	return;
1314		1405
1315	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1406	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1316		1407
1317	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1408	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1321	}	1412	}
1322		1413
1323	void	1414	void
1324	ev_timer_start (EV_P_ struct ev_timer *w)	1415	ev_timer_start (EV_P_ struct ev_timer *w)
1325	{	1416	{
1326	if (ev_is_active (w))	1417	if (expect_false (ev_is_active (w)))
1327	return;	1418	return;
1328		1419
1329	((WT)w)->at += mn_now;	1420	((WT)w)->at += mn_now;
1330		1421
1331	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1422	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1332		1423
1333	ev_start (EV_A_ (W)w, ++timercnt);	1424	ev_start (EV_A_ (W)w, ++timercnt);
1334	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1425	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1335	timers [timercnt - 1] = w;	1426	timers [timercnt - 1] = w;
1336	upheap ((WT *)timers, timercnt - 1);	1427	upheap ((WT *)timers, timercnt - 1);
1337		1428
1338	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1429	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1339	}	1430	}
1340		1431
1341	void	1432	void
1342	ev_timer_stop (EV_P_ struct ev_timer *w)	1433	ev_timer_stop (EV_P_ struct ev_timer *w)
1343	{	1434	{
1344	ev_clear_pending (EV_A_ (W)w);	1435	ev_clear_pending (EV_A_ (W)w);
1345	if (!ev_is_active (w))	1436	if (expect_false (!ev_is_active (w)))
1346	return;	1437	return;
1347		1438
1348	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1439	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1349		1440
1350	if (((W)w)->active < timercnt--)	1441	if (expect_true (((W)w)->active < timercnt--))
1351	{	1442	{
1352	timers [((W)w)->active - 1] = timers [timercnt];	1443	timers [((W)w)->active - 1] = timers [timercnt];
1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1444	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1354	}	1445	}
1355		1446
…		…
1370	}	1461	}
1371	else	1462	else
1372	ev_timer_stop (EV_A_ w);	1463	ev_timer_stop (EV_A_ w);
1373	}	1464	}
1374	else if (w->repeat)	1465	else if (w->repeat)
		1466	{
		1467	w->at = w->repeat;
1375	ev_timer_start (EV_A_ w);	1468	ev_timer_start (EV_A_ w);
		1469	}
1376	}	1470	}
1377		1471
1378	#if EV_PERIODICS	1472	#if EV_PERIODICS
1379	void	1473	void
1380	ev_periodic_start (EV_P_ struct ev_periodic *w)	1474	ev_periodic_start (EV_P_ struct ev_periodic *w)
1381	{	1475	{
1382	if (ev_is_active (w))	1476	if (expect_false (ev_is_active (w)))
1383	return;	1477	return;
1384		1478
1385	if (w->reschedule_cb)	1479	if (w->reschedule_cb)
1386	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1480	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1387	else if (w->interval)	1481	else if (w->interval)
…		…
1390	/* this formula differs from the one in periodic_reify because we do not always round up */	1484	/* this formula differs from the one in periodic_reify because we do not always round up */
1391	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1485	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1392	}	1486	}
1393		1487
1394	ev_start (EV_A_ (W)w, ++periodiccnt);	1488	ev_start (EV_A_ (W)w, ++periodiccnt);
1395	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1489	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1396	periodics [periodiccnt - 1] = w;	1490	periodics [periodiccnt - 1] = w;
1397	upheap ((WT *)periodics, periodiccnt - 1);	1491	upheap ((WT *)periodics, periodiccnt - 1);
1398		1492
1399	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1493	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1400	}	1494	}
1401		1495
1402	void	1496	void
1403	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1497	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1404	{	1498	{
1405	ev_clear_pending (EV_A_ (W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1406	if (!ev_is_active (w))	1500	if (expect_false (!ev_is_active (w)))
1407	return;	1501	return;
1408		1502
1409	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1503	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1410		1504
1411	if (((W)w)->active < periodiccnt--)	1505	if (expect_true (((W)w)->active < periodiccnt--))
1412	{	1506	{
1413	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1507	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1414	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1508	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1415	}	1509	}
1416		1510
…		…
1427	#endif	1521	#endif
1428		1522
1429	void	1523	void
1430	ev_idle_start (EV_P_ struct ev_idle *w)	1524	ev_idle_start (EV_P_ struct ev_idle *w)
1431	{	1525	{
1432	if (ev_is_active (w))	1526	if (expect_false (ev_is_active (w)))
1433	return;	1527	return;
1434		1528
1435	ev_start (EV_A_ (W)w, ++idlecnt);	1529	ev_start (EV_A_ (W)w, ++idlecnt);
1436	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1530	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1437	idles [idlecnt - 1] = w;	1531	idles [idlecnt - 1] = w;
1438	}	1532	}
1439		1533
1440	void	1534	void
1441	ev_idle_stop (EV_P_ struct ev_idle *w)	1535	ev_idle_stop (EV_P_ struct ev_idle *w)
1442	{	1536	{
1443	ev_clear_pending (EV_A_ (W)w);	1537	ev_clear_pending (EV_A_ (W)w);
1444	if (ev_is_active (w))	1538	if (expect_false (!ev_is_active (w)))
1445	return;	1539	return;
1446		1540
1447	idles [((W)w)->active - 1] = idles [--idlecnt];	1541	idles [((W)w)->active - 1] = idles [--idlecnt];
1448	ev_stop (EV_A_ (W)w);	1542	ev_stop (EV_A_ (W)w);
1449	}	1543	}
1450		1544
1451	void	1545	void
1452	ev_prepare_start (EV_P_ struct ev_prepare *w)	1546	ev_prepare_start (EV_P_ struct ev_prepare *w)
1453	{	1547	{
1454	if (ev_is_active (w))	1548	if (expect_false (ev_is_active (w)))
1455	return;	1549	return;
1456		1550
1457	ev_start (EV_A_ (W)w, ++preparecnt);	1551	ev_start (EV_A_ (W)w, ++preparecnt);
1458	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1552	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1459	prepares [preparecnt - 1] = w;	1553	prepares [preparecnt - 1] = w;
1460	}	1554	}
1461		1555
1462	void	1556	void
1463	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1557	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1464	{	1558	{
1465	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1466	if (ev_is_active (w))	1560	if (expect_false (!ev_is_active (w)))
1467	return;	1561	return;
1468		1562
1469	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1563	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1470	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1471	}	1565	}
1472		1566
1473	void	1567	void
1474	ev_check_start (EV_P_ struct ev_check *w)	1568	ev_check_start (EV_P_ struct ev_check *w)
1475	{	1569	{
1476	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1477	return;	1571	return;
1478		1572
1479	ev_start (EV_A_ (W)w, ++checkcnt);	1573	ev_start (EV_A_ (W)w, ++checkcnt);
1480	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1574	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1481	checks [checkcnt - 1] = w;	1575	checks [checkcnt - 1] = w;
1482	}	1576	}
1483		1577
1484	void	1578	void
1485	ev_check_stop (EV_P_ struct ev_check *w)	1579	ev_check_stop (EV_P_ struct ev_check *w)
1486	{	1580	{
1487	ev_clear_pending (EV_A_ (W)w);	1581	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1582	if (expect_false (!ev_is_active (w)))
1489	return;	1583	return;
1490		1584
1491	checks [((W)w)->active - 1] = checks [--checkcnt];	1585	checks [((W)w)->active - 1] = checks [--checkcnt];
1492	ev_stop (EV_A_ (W)w);	1586	ev_stop (EV_A_ (W)w);
1493	}	1587	}
…		…
1498		1592
1499	void	1593	void
1500	ev_signal_start (EV_P_ struct ev_signal *w)	1594	ev_signal_start (EV_P_ struct ev_signal *w)
1501	{	1595	{
1502	#if EV_MULTIPLICITY	1596	#if EV_MULTIPLICITY
1503	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1597	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1504	#endif	1598	#endif
1505	if (ev_is_active (w))	1599	if (expect_false (ev_is_active (w)))
1506	return;	1600	return;
1507		1601
1508	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1602	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1509		1603
1510	ev_start (EV_A_ (W)w, 1);	1604	ev_start (EV_A_ (W)w, 1);
1511	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1605	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1512	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1606	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1513		1607
1514	if (!((WL)w)->next)	1608	if (!((WL)w)->next)
1515	{	1609	{
1516	#if WIN32	1610	#if _WIN32
1517	signal (w->signum, sighandler);	1611	signal (w->signum, sighandler);
1518	#else	1612	#else
1519	struct sigaction sa;	1613	struct sigaction sa;
1520	sa.sa_handler = sighandler;	1614	sa.sa_handler = sighandler;
1521	sigfillset (&sa.sa_mask);	1615	sigfillset (&sa.sa_mask);
…		…
1527		1621
1528	void	1622	void
1529	ev_signal_stop (EV_P_ struct ev_signal *w)	1623	ev_signal_stop (EV_P_ struct ev_signal *w)
1530	{	1624	{
1531	ev_clear_pending (EV_A_ (W)w);	1625	ev_clear_pending (EV_A_ (W)w);
1532	if (!ev_is_active (w))	1626	if (expect_false (!ev_is_active (w)))
1533	return;	1627	return;
1534		1628
1535	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1629	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1536	ev_stop (EV_A_ (W)w);	1630	ev_stop (EV_A_ (W)w);
1537		1631
…		…
1541		1635
1542	void	1636	void
1543	ev_child_start (EV_P_ struct ev_child *w)	1637	ev_child_start (EV_P_ struct ev_child *w)
1544	{	1638	{
1545	#if EV_MULTIPLICITY	1639	#if EV_MULTIPLICITY
1546	assert (("child watchers are only supported in the default loop", loop == default_loop));	1640	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1547	#endif	1641	#endif
1548	if (ev_is_active (w))	1642	if (expect_false (ev_is_active (w)))
1549	return;	1643	return;
1550		1644
1551	ev_start (EV_A_ (W)w, 1);	1645	ev_start (EV_A_ (W)w, 1);
1552	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1646	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1553	}	1647	}
1554		1648
1555	void	1649	void
1556	ev_child_stop (EV_P_ struct ev_child *w)	1650	ev_child_stop (EV_P_ struct ev_child *w)
1557	{	1651	{
1558	ev_clear_pending (EV_A_ (W)w);	1652	ev_clear_pending (EV_A_ (W)w);
1559	if (!ev_is_active (w))	1653	if (expect_false (!ev_is_active (w)))
1560	return;	1654	return;
1561		1655
1562	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1656	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1563	ev_stop (EV_A_ (W)w);	1657	ev_stop (EV_A_ (W)w);
1564	}	1658	}
…		…
1601	void	1695	void
1602	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1696	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1603	{	1697	{
1604	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1698	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1605		1699
1606	if (!once)	1700	if (expect_false (!once))
		1701	{
1607	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1702	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1608	else	1703	return;
1609	{	1704	}
		1705
1610	once->cb = cb;	1706	once->cb = cb;
1611	once->arg = arg;	1707	once->arg = arg;
1612		1708
1613	ev_init (&once->io, once_cb_io);	1709	ev_init (&once->io, once_cb_io);
1614	if (fd >= 0)	1710	if (fd >= 0)
1615	{	1711	{
1616	ev_io_set (&once->io, fd, events);	1712	ev_io_set (&once->io, fd, events);
1617	ev_io_start (EV_A_ &once->io);	1713	ev_io_start (EV_A_ &once->io);
1618	}	1714	}
1619		1715
1620	ev_init (&once->to, once_cb_to);	1716	ev_init (&once->to, once_cb_to);
1621	if (timeout >= 0.)	1717	if (timeout >= 0.)
1622	{	1718	{
1623	ev_timer_set (&once->to, timeout, 0.);	1719	ev_timer_set (&once->to, timeout, 0.);
1624	ev_timer_start (EV_A_ &once->to);	1720	ev_timer_start (EV_A_ &once->to);
1625	}
1626	}	1721	}
1627	}	1722	}
1628		1723
1629	#ifdef __cplusplus	1724	#ifdef __cplusplus
1630	}	1725	}

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Comparing libev/ev.c (file contents): Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC vs. Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC