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

Comparing libev/ev.c (file contents):
Revision 1.89 by root, Sat Nov 10 19:48:44 2007 UTC vs.
Revision 1.129 by root, Fri Nov 23 05:00:44 2007 UTC

…		…
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
37	# include "config.h"	37	# include "config.h"
38		38
39	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
40	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
41	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		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
42	# endif	53	# endif
43		54
		55	# ifndef EV_USE_SELECT
44	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
45	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
46	# endif	61	# endif
47		62
		63	# ifndef EV_USE_POLL
48	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
49	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
50	# endif	69	# endif
51		70
		71	# ifndef EV_USE_EPOLL
52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
53	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
54	# endif	77	# endif
55		78
		79	# ifndef EV_USE_KQUEUE
56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
57	# 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
58	# endif	93	# endif
59		94
60	#endif	95	#endif
61		96
62	#include <math.h>	97	#include <math.h>
…		…
71	#include <sys/types.h>	106	#include <sys/types.h>
72	#include <time.h>	107	#include <time.h>
73		108
74	#include <signal.h>	109	#include <signal.h>
75		110
76	#ifndef WIN32	111	#ifndef _WIN32
77	# include <unistd.h>	112	# include <unistd.h>
78	# include <sys/time.h>	113	# include <sys/time.h>
79	# 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
80	#endif	120	# endif
		121	#endif
		122
81	/**/	123	/**/
82		124
83	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
84	# 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
85	#endif	131	#endif
86		132
87	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
88	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
89	#endif	135	#endif
90		136
91	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
92	# 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
93	#endif	143	#endif
94		144
95	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
96	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
97	#endif	147	#endif
98		148
99	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
100	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
101	#endif	151	#endif
102		152
103	#ifndef EV_USE_WIN32
104	# ifdef WIN32
105	# define EV_USE_WIN32 0 /* it does not exist, use select */
106	# undef EV_USE_SELECT
107	# define EV_USE_SELECT 1
108	# else
109	# define EV_USE_WIN32 0
110	# endif
111	#endif
112
113	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
114	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
115	#endif	155	#endif
116		156
117	/**/	157	/**/
118		158
119	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
124	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
125	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
126	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
127	#endif	167	#endif
128		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
129	/**/	173	/**/
130		174
131	#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) */
132	#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) */
133	#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 */
134	/#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 */
135		179
136	#ifdef EV_H	180	#ifdef EV_H
137	# include EV_H	181	# include EV_H
138	#else	182	#else
139	# include "ev.h"	183	# include "ev.h"
140	#endif	184	#endif
141		185
142	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
143	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
144	# define inline inline	188	# define inline static inline
145	#else	189	#else
146	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
147	# define inline static	191	# define inline static
148	#endif	192	#endif
149		193
…		…
151	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
152		196
153	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
154	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
155		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
156	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
157	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
158	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
159		206
160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
161		208
		209	#ifdef _WIN32
162	#include "ev_win32.c"	210	# include "ev_win32.c"
		211	#endif
163		212
164	/*****************************************************************************/	213	/*****************************************************************************/
165		214
166	static void (syserr_cb)(const char msg);	215	static void (syserr_cb)(const char msg);
167		216
…		…
214	typedef struct	263	typedef struct
215	{	264	{
216	WL head;	265	WL head;
217	unsigned char events;	266	unsigned char events;
218	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
219	} ANFD;	271	} ANFD;
220		272
221	typedef struct	273	typedef struct
222	{	274	{
223	W w;	275	W w;
…		…
227	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
228		280
229	struct ev_loop	281	struct ev_loop
230	{	282	{
231	ev_tstamp ev_rt_now;	283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
232	#define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
233	#include "ev_vars.h"	286	#include "ev_vars.h"
234	#undef VAR	287	#undef VAR
235	};	288	};
236	#include "ev_wrap.h"	289	#include "ev_wrap.h"
237		290
238	struct ev_loop default_loop_struct;	291	static struct ev_loop default_loop_struct;
239	static struct ev_loop *default_loop;	292	struct ev_loop *ev_default_loop_ptr;
240		293
241	#else	294	#else
242		295
243	ev_tstamp ev_rt_now;	296	ev_tstamp ev_rt_now;
244	#define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
245	#include "ev_vars.h"	298	#include "ev_vars.h"
246	#undef VAR	299	#undef VAR
247		300
248	static int default_loop;	301	static int ev_default_loop_ptr;
249		302
250	#endif	303	#endif
251		304
252	/*****************************************************************************/	305	/*****************************************************************************/
253		306
254	inline ev_tstamp	307	ev_tstamp
255	ev_time (void)	308	ev_time (void)
256	{	309	{
257	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
258	struct timespec ts;	311	struct timespec ts;
259	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
286	{	339	{
287	return ev_rt_now;	340	return ev_rt_now;
288	}	341	}
289	#endif	342	#endif
290		343
291	#define array_roundsize(type,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
292		345
293	#define array_needsize(type,base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
294	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
295	{ \	348	{ \
296	int newcnt = cur; \	349	int newcnt = cur; \
…		…
311	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
312	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
313	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
314	}	367	}
315		368
316	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
317	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
318	#define array_free_microshit(stem) \
319	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
320
321	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
322	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;
323		371
324	/*****************************************************************************/	372	/*****************************************************************************/
325		373
…		…
339	void	387	void
340	ev_feed_event (EV_P_ void *w, int revents)	388	ev_feed_event (EV_P_ void *w, int revents)
341	{	389	{
342	W w_ = (W)w;	390	W w_ = (W)w;
343		391
344	if (w_->pending)	392	if (expect_false (w_->pending))
345	{	393	{
346	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
347	return;	395	return;
348	}	396	}
349		397
350	w_->pending = ++pendingcnt [ABSPRI (w_)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
351	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);
352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
354	}	402	}
355		403
356	static void	404	static void
…		…
383	fd_event (EV_A_ fd, revents);	431	fd_event (EV_A_ fd, revents);
384	}	432	}
385		433
386	/*****************************************************************************/	434	/*****************************************************************************/
387		435
388	static void	436	inline void
389	fd_reify (EV_P)	437	fd_reify (EV_P)
390	{	438	{
391	int i;	439	int i;
392		440
393	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
399	int events = 0;	447	int events = 0;
400		448
401	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)
402	events \|= w->events;	450	events \|= w->events;
403		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
404	anfd->reify = 0;	461	anfd->reify = 0;
405		462
406	method_modify (EV_A_ fd, anfd->events, events);	463	method_modify (EV_A_ fd, anfd->events, events);
407	anfd->events = events;	464	anfd->events = events;
408	}	465	}
…		…
411	}	468	}
412		469
413	static void	470	static void
414	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
415	{	472	{
416	if (anfds [fd].reify)	473	if (expect_false (anfds [fd].reify))
417	return;	474	return;
418		475
419	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
420		477
421	++fdchangecnt;	478	++fdchangecnt;
422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
423	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
424	}	481	}
425		482
426	static void	483	static void
427	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
433	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
434	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);
435	}	492	}
436	}	493	}
437		494
438	static int	495	inline int
439	fd_valid (int fd)	496	fd_valid (int fd)
440	{	497	{
441	#ifdef WIN32	498	#ifdef _WIN32
442	return !!win32_get_osfhandle (fd);	499	return _get_osfhandle (fd) != -1;
443	#else	500	#else
444	return fcntl (fd, F_GETFD) != -1;	501	return fcntl (fd, F_GETFD) != -1;
445	#endif	502	#endif
446	}	503	}
447		504
…		…
528	heap [k] = w;	585	heap [k] = w;
529	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
530	}	587	}
531		588
532	inline void	589	inline void
533	adjustheap (WT *heap, int N, int k, ev_tstamp at)	590	adjustheap (WT *heap, int N, int k)
534	{	591	{
535	ev_tstamp old_at = heap [k]->at;	592	upheap (heap, k);
536	heap [k]->at = at;
537
538	if (old_at < at)
539	downheap (heap, N, k);	593	downheap (heap, N, k);
540	else
541	upheap (heap, k);
542	}	594	}
543		595
544	/*****************************************************************************/	596	/*****************************************************************************/
545		597
546	typedef struct	598	typedef struct
…		…
569	}	621	}
570		622
571	static void	623	static void
572	sighandler (int signum)	624	sighandler (int signum)
573	{	625	{
574	#if WIN32	626	#if _WIN32
575	signal (signum, sighandler);	627	signal (signum, sighandler);
576	#endif	628	#endif
577		629
578	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
579		631
580	if (!gotsig)	632	if (!gotsig)
581	{	633	{
582	int old_errno = errno;	634	int old_errno = errno;
583	gotsig = 1;	635	gotsig = 1;
584	#ifdef WIN32
585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
586	#else
587	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
588	#endif
589	errno = old_errno;	637	errno = old_errno;
590	}	638	}
591	}	639	}
592		640
593	void	641	void
594	ev_feed_signal_event (EV_P_ int signum)	642	ev_feed_signal_event (EV_P_ int signum)
595	{	643	{
596	WL w;	644	WL w;
597		645
598	#if EV_MULTIPLICITY	646	#if EV_MULTIPLICITY
599	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));
600	#endif	648	#endif
601		649
602	--signum;	650	--signum;
603		651
604	if (signum < 0 \|\| signum >= signalmax)	652	if (signum < 0 \|\| signum >= signalmax)
…		…
613	static void	661	static void
614	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
615	{	663	{
616	int signum;	664	int signum;
617		665
618	#ifdef WIN32
619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
620	#else
621	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
622	#endif
623	gotsig = 0;	667	gotsig = 0;
624		668
625	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
626	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
627	ev_feed_signal_event (EV_A_ signum + 1);	671	ev_feed_signal_event (EV_A_ signum + 1);
628	}	672	}
629		673
630	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
631	siginit (EV_P)	687	siginit (EV_P)
632	{	688	{
633	#ifndef WIN32	689	fd_intern (sigpipe [0]);
634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
636
637	/* rather than sort out wether we really need nb, set it */
638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
640	#endif
641		691
642	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
643	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
644	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
645	}	695	}
646		696
647	/*****************************************************************************/	697	/*****************************************************************************/
648		698
649	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
650		700
651	#ifndef WIN32	701	#ifndef _WIN32
652		702
653	static struct ev_signal childev;	703	static struct ev_signal childev;
654		704
655	#ifndef WCONTINUED	705	#ifndef WCONTINUED
656	# define WCONTINUED 0	706	# define WCONTINUED 0
…		…
688		738
689	#endif	739	#endif
690		740
691	/*****************************************************************************/	741	/*****************************************************************************/
692		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
693	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
694	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
695	#endif	748	#endif
696	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
697	# include "ev_epoll.c"	750	# include "ev_epoll.c"
…		…
717		770
718	/* 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 */
719	static int	772	static int
720	enable_secure (void)	773	enable_secure (void)
721	{	774	{
722	#ifdef WIN32	775	#ifdef _WIN32
723	return 0;	776	return 0;
724	#else	777	#else
725	return getuid () != geteuid ()	778	return getuid () != geteuid ()
726	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
727	#endif	780	#endif
728	}	781	}
729		782
730	int	783	unsigned int
731	ev_method (EV_P)	784	ev_supported_backends (void)
732	{	785	{
733	return method;
734	}	786	}
735		787
		788	unsigned int
		789	ev_recommended_backends (void)
		790	{
		791	unsigned int flags;
		792
		793	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
		794	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		795	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		796	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		797	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		798
		799	return flags;
		800	}
		801
		802	unsigned int
		803	ev_backend (EV_P)
		804	{
		805	unsigned int flags = ev_recommended_backends ();
		806
		807	#ifndef __NetBSD__
		808	/* kqueue is borked on everything but netbsd apparently */
		809	/* it usually doesn't work correctly on anything but sockets and pipes */
		810	flags &= ~EVBACKEND_KQUEUE;
		811	#endif
		812	#ifdef __APPLE__
		813	// flags &= ~EVBACKEND_KQUEUE; for documentation
		814	flags &= ~EVBACKEND_POLL;
		815	#endif
		816
		817	return flags;
		818	}
		819
736	static void	820	static void
737	loop_init (EV_P_ int methods)	821	loop_init (EV_P_ unsigned int flags)
738	{	822	{
739	if (!method)	823	if (!method)
740	{	824	{
741	#if EV_USE_MONOTONIC	825	#if EV_USE_MONOTONIC
742	{	826	{
…		…
749	ev_rt_now = ev_time ();	833	ev_rt_now = ev_time ();
750	mn_now = get_clock ();	834	mn_now = get_clock ();
751	now_floor = mn_now;	835	now_floor = mn_now;
752	rtmn_diff = ev_rt_now - mn_now;	836	rtmn_diff = ev_rt_now - mn_now;
753		837
754	if (methods == EVMETHOD_AUTO)	838	if (!(flags & EVFLAG_NOENV)
755	if (!enable_secure () && getenv ("LIBEV_METHODS"))	839	&& !enable_secure ()
		840	&& getenv ("LIBEV_FLAGS"))
756	methods = atoi (getenv ("LIBEV_METHODS"));	841	flags = atoi (getenv ("LIBEV_FLAGS"));
757	else	842
758	methods = EVMETHOD_ANY;	843	if (!(flags & 0x0000ffffUL))
		844	flags \|= ev_recommended_backends ();
759		845
760	method = 0;	846	method = 0;
761	#if EV_USE_WIN32	847	#if EV_USE_PORT
762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	848	if (!method && (flags & EVBACKEND_PORT )) method = port_init (EV_A_ flags);
763	#endif	849	#endif
764	#if EV_USE_KQUEUE	850	#if EV_USE_KQUEUE
765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	851	if (!method && (flags & EVBACKEND_KQUEUE)) method = kqueue_init (EV_A_ flags);
766	#endif	852	#endif
767	#if EV_USE_EPOLL	853	#if EV_USE_EPOLL
768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	854	if (!method && (flags & EVBACKEND_EPOLL )) method = epoll_init (EV_A_ flags);
769	#endif	855	#endif
770	#if EV_USE_POLL	856	#if EV_USE_POLL
771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	857	if (!method && (flags & EVBACKEND_POLL )) method = poll_init (EV_A_ flags);
772	#endif	858	#endif
773	#if EV_USE_SELECT	859	#if EV_USE_SELECT
774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	860	if (!method && (flags & EVBACKEND_SELECT)) method = select_init (EV_A_ flags);
775	#endif	861	#endif
776		862
777	ev_init (&sigev, sigcb);	863	ev_init (&sigev, sigcb);
778	ev_set_priority (&sigev, EV_MAXPRI);	864	ev_set_priority (&sigev, EV_MAXPRI);
779	}	865	}
780	}	866	}
781		867
782	void	868	static void
783	loop_destroy (EV_P)	869	loop_destroy (EV_P)
784	{	870	{
785	int i;	871	int i;
786		872
787	#if EV_USE_WIN32	873	#if EV_USE_PORT
788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	874	if (method == EVBACKEND_PORT ) port_destroy (EV_A);
789	#endif	875	#endif
790	#if EV_USE_KQUEUE	876	#if EV_USE_KQUEUE
791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	877	if (method == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
792	#endif	878	#endif
793	#if EV_USE_EPOLL	879	#if EV_USE_EPOLL
794	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	880	if (method == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
795	#endif	881	#endif
796	#if EV_USE_POLL	882	#if EV_USE_POLL
797	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	883	if (method == EVBACKEND_POLL ) poll_destroy (EV_A);
798	#endif	884	#endif
799	#if EV_USE_SELECT	885	#if EV_USE_SELECT
800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	886	if (method == EVBACKEND_SELECT) select_destroy (EV_A);
801	#endif	887	#endif
802		888
803	for (i = NUMPRI; i--; )	889	for (i = NUMPRI; i--; )
804	array_free (pending, [i]);	890	array_free (pending, [i]);
805		891
806	/* have to use the microsoft-never-gets-it-right macro */	892	/* have to use the microsoft-never-gets-it-right macro */
807	array_free_microshit (fdchange);	893	array_free (fdchange, EMPTY0);
808	array_free_microshit (timer);	894	array_free (timer, EMPTY0);
809	array_free_microshit (periodic);	895	#if EV_PERIODICS
810	array_free_microshit (idle);	896	array_free (periodic, EMPTY0);
811	array_free_microshit (prepare);	897	#endif
812	array_free_microshit (check);	898	array_free (idle, EMPTY0);
		899	array_free (prepare, EMPTY0);
		900	array_free (check, EMPTY0);
813		901
814	method = 0;	902	method = 0;
815	}	903	}
816		904
817	static void	905	static void
818	loop_fork (EV_P)	906	loop_fork (EV_P)
819	{	907	{
		908	#if EV_USE_PORT
		909	if (method == EVBACKEND_PORT ) port_fork (EV_A);
		910	#endif
		911	#if EV_USE_KQUEUE
		912	if (method == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		913	#endif
820	#if EV_USE_EPOLL	914	#if EV_USE_EPOLL
821	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	915	if (method == EVBACKEND_EPOLL ) epoll_fork (EV_A);
822	#endif
823	#if EV_USE_KQUEUE
824	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
825	#endif	916	#endif
826		917
827	if (ev_is_active (&sigev))	918	if (ev_is_active (&sigev))
828	{	919	{
829	/* default loop */	920	/* default loop */
…		…
842	postfork = 0;	933	postfork = 0;
843	}	934	}
844		935
845	#if EV_MULTIPLICITY	936	#if EV_MULTIPLICITY
846	struct ev_loop *	937	struct ev_loop *
847	ev_loop_new (int methods)	938	ev_loop_new (unsigned int flags)
848	{	939	{
849	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	940	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
850		941
851	memset (loop, 0, sizeof (struct ev_loop));	942	memset (loop, 0, sizeof (struct ev_loop));
852		943
853	loop_init (EV_A_ methods);	944	loop_init (EV_A_ flags);
854		945
855	if (ev_method (EV_A))	946	if (ev_method (EV_A))
856	return loop;	947	return loop;
857		948
858	return 0;	949	return 0;
…		…
873		964
874	#endif	965	#endif
875		966
876	#if EV_MULTIPLICITY	967	#if EV_MULTIPLICITY
877	struct ev_loop *	968	struct ev_loop *
		969	ev_default_loop_init (unsigned int flags)
878	#else	970	#else
879	int	971	int
		972	ev_default_loop (unsigned int flags)
880	#endif	973	#endif
881	ev_default_loop (int methods)
882	{	974	{
883	if (sigpipe [0] == sigpipe [1])	975	if (sigpipe [0] == sigpipe [1])
884	if (pipe (sigpipe))	976	if (pipe (sigpipe))
885	return 0;	977	return 0;
886		978
887	if (!default_loop)	979	if (!ev_default_loop_ptr)
888	{	980	{
889	#if EV_MULTIPLICITY	981	#if EV_MULTIPLICITY
890	struct ev_loop *loop = default_loop = &default_loop_struct;	982	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
891	#else	983	#else
892	default_loop = 1;	984	ev_default_loop_ptr = 1;
893	#endif	985	#endif
894		986
895	loop_init (EV_A_ methods);	987	loop_init (EV_A_ flags);
896		988
897	if (ev_method (EV_A))	989	if (ev_method (EV_A))
898	{	990	{
899	siginit (EV_A);	991	siginit (EV_A);
900		992
901	#ifndef WIN32	993	#ifndef _WIN32
902	ev_signal_init (&childev, childcb, SIGCHLD);	994	ev_signal_init (&childev, childcb, SIGCHLD);
903	ev_set_priority (&childev, EV_MAXPRI);	995	ev_set_priority (&childev, EV_MAXPRI);
904	ev_signal_start (EV_A_ &childev);	996	ev_signal_start (EV_A_ &childev);
905	ev_unref (EV_A); /* child watcher should not keep loop alive */	997	ev_unref (EV_A); /* child watcher should not keep loop alive */
906	#endif	998	#endif
907	}	999	}
908	else	1000	else
909	default_loop = 0;	1001	ev_default_loop_ptr = 0;
910	}	1002	}
911		1003
912	return default_loop;	1004	return ev_default_loop_ptr;
913	}	1005	}
914		1006
915	void	1007	void
916	ev_default_destroy (void)	1008	ev_default_destroy (void)
917	{	1009	{
918	#if EV_MULTIPLICITY	1010	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	1011	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	1012	#endif
921		1013
922	#ifndef WIN32	1014	#ifndef _WIN32
923	ev_ref (EV_A); /* child watcher */	1015	ev_ref (EV_A); /* child watcher */
924	ev_signal_stop (EV_A_ &childev);	1016	ev_signal_stop (EV_A_ &childev);
925	#endif	1017	#endif
926		1018
927	ev_ref (EV_A); /* signal watcher */	1019	ev_ref (EV_A); /* signal watcher */
…		…
935		1027
936	void	1028	void
937	ev_default_fork (void)	1029	ev_default_fork (void)
938	{	1030	{
939	#if EV_MULTIPLICITY	1031	#if EV_MULTIPLICITY
940	struct ev_loop *loop = default_loop;	1032	struct ev_loop *loop = ev_default_loop_ptr;
941	#endif	1033	#endif
942		1034
943	if (method)	1035	if (method)
944	postfork = 1;	1036	postfork = 1;
945	}	1037	}
…		…
956	return 1;	1048	return 1;
957		1049
958	return 0;	1050	return 0;
959	}	1051	}
960		1052
961	static void	1053	inline void
962	call_pending (EV_P)	1054	call_pending (EV_P)
963	{	1055	{
964	int pri;	1056	int pri;
965		1057
966	for (pri = NUMPRI; pri--; )	1058	for (pri = NUMPRI; pri--; )
967	while (pendingcnt [pri])	1059	while (pendingcnt [pri])
968	{	1060	{
969	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1061	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
970		1062
971	if (p->w)	1063	if (expect_true (p->w))
972	{	1064	{
973	p->w->pending = 0;	1065	p->w->pending = 0;
974	EV_CB_INVOKE (p->w, p->events);	1066	EV_CB_INVOKE (p->w, p->events);
975	}	1067	}
976	}	1068	}
977	}	1069	}
978		1070
979	static void	1071	inline void
980	timers_reify (EV_P)	1072	timers_reify (EV_P)
981	{	1073	{
982	while (timercnt && ((WT)timers [0])->at <= mn_now)	1074	while (timercnt && ((WT)timers [0])->at <= mn_now)
983	{	1075	{
984	struct ev_timer *w = timers [0];	1076	struct ev_timer *w = timers [0];
…		…
987		1079
988	/* first reschedule or stop timer */	1080	/* first reschedule or stop timer */
989	if (w->repeat)	1081	if (w->repeat)
990	{	1082	{
991	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1083	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1084
992	((WT)w)->at = mn_now + w->repeat;	1085	((WT)w)->at += w->repeat;
		1086	if (((WT)w)->at < mn_now)
		1087	((WT)w)->at = mn_now;
		1088
993	downheap ((WT *)timers, timercnt, 0);	1089	downheap ((WT *)timers, timercnt, 0);
994	}	1090	}
995	else	1091	else
996	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1092	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
997		1093
998	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1094	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
999	}	1095	}
1000	}	1096	}
1001		1097
1002	static void	1098	#if EV_PERIODICS
		1099	inline void
1003	periodics_reify (EV_P)	1100	periodics_reify (EV_P)
1004	{	1101	{
1005	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1102	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1006	{	1103	{
1007	struct ev_periodic *w = periodics [0];	1104	struct ev_periodic *w = periodics [0];
…		…
1009	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1106	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1010		1107
1011	/* first reschedule or stop timer */	1108	/* first reschedule or stop timer */
1012	if (w->reschedule_cb)	1109	if (w->reschedule_cb)
1013	{	1110	{
1014	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1111	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1015
1016	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1112	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1017	downheap ((WT *)periodics, periodiccnt, 0);	1113	downheap ((WT *)periodics, periodiccnt, 0);
1018	}	1114	}
1019	else if (w->interval)	1115	else if (w->interval)
1020	{	1116	{
…		…
1047		1143
1048	/* now rebuild the heap */	1144	/* now rebuild the heap */
1049	for (i = periodiccnt >> 1; i--; )	1145	for (i = periodiccnt >> 1; i--; )
1050	downheap ((WT *)periodics, periodiccnt, i);	1146	downheap ((WT *)periodics, periodiccnt, i);
1051	}	1147	}
		1148	#endif
1052		1149
1053	inline int	1150	inline int
1054	time_update_monotonic (EV_P)	1151	time_update_monotonic (EV_P)
1055	{	1152	{
1056	mn_now = get_clock ();	1153	mn_now = get_clock ();
…		…
1066	ev_rt_now = ev_time ();	1163	ev_rt_now = ev_time ();
1067	return 1;	1164	return 1;
1068	}	1165	}
1069	}	1166	}
1070		1167
1071	static void	1168	inline void
1072	time_update (EV_P)	1169	time_update (EV_P)
1073	{	1170	{
1074	int i;	1171	int i;
1075		1172
1076	#if EV_USE_MONOTONIC	1173	#if EV_USE_MONOTONIC
…		…
1090	ev_rt_now = ev_time ();	1187	ev_rt_now = ev_time ();
1091	mn_now = get_clock ();	1188	mn_now = get_clock ();
1092	now_floor = mn_now;	1189	now_floor = mn_now;
1093	}	1190	}
1094		1191
		1192	# if EV_PERIODICS
1095	periodics_reschedule (EV_A);	1193	periodics_reschedule (EV_A);
		1194	# endif
1096	/* no timer adjustment, as the monotonic clock doesn't jump */	1195	/* no timer adjustment, as the monotonic clock doesn't jump */
1097	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1196	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1098	}	1197	}
1099	}	1198	}
1100	else	1199	else
…		…
1102	{	1201	{
1103	ev_rt_now = ev_time ();	1202	ev_rt_now = ev_time ();
1104		1203
1105	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1204	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1106	{	1205	{
		1206	#if EV_PERIODICS
1107	periodics_reschedule (EV_A);	1207	periodics_reschedule (EV_A);
		1208	#endif
1108		1209
1109	/* adjust timers. this is easy, as the offset is the same for all */	1210	/* adjust timers. this is easy, as the offset is the same for all */
1110	for (i = 0; i < timercnt; ++i)	1211	for (i = 0; i < timercnt; ++i)
1111	((WT)timers [i])->at += ev_rt_now - mn_now;	1212	((WT)timers [i])->at += ev_rt_now - mn_now;
1112	}	1213	}
…		…
1133	ev_loop (EV_P_ int flags)	1234	ev_loop (EV_P_ int flags)
1134	{	1235	{
1135	double block;	1236	double block;
1136	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1237	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1137		1238
1138	do	1239	while (activecnt)
1139	{	1240	{
1140	/* queue check watchers (and execute them) */	1241	/* queue check watchers (and execute them) */
1141	if (expect_false (preparecnt))	1242	if (expect_false (preparecnt))
1142	{	1243	{
1143	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1244	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1175	{	1276	{
1176	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1277	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1177	if (block > to) block = to;	1278	if (block > to) block = to;
1178	}	1279	}
1179		1280
		1281	#if EV_PERIODICS
1180	if (periodiccnt)	1282	if (periodiccnt)
1181	{	1283	{
1182	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1284	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1183	if (block > to) block = to;	1285	if (block > to) block = to;
1184	}	1286	}
		1287	#endif
1185		1288
1186	if (block < 0.) block = 0.;	1289	if (expect_false (block < 0.)) block = 0.;
1187	}	1290	}
1188		1291
1189	method_poll (EV_A_ block);	1292	method_poll (EV_A_ block);
1190		1293
1191	/* update ev_rt_now, do magic */	1294	/* update ev_rt_now, do magic */
1192	time_update (EV_A);	1295	time_update (EV_A);
1193		1296
1194	/* queue pending timers and reschedule them */	1297	/* queue pending timers and reschedule them */
1195	timers_reify (EV_A); /* relative timers called last */	1298	timers_reify (EV_A); /* relative timers called last */
		1299	#if EV_PERIODICS
1196	periodics_reify (EV_A); /* absolute timers called first */	1300	periodics_reify (EV_A); /* absolute timers called first */
		1301	#endif
1197		1302
1198	/* queue idle watchers unless io or timers are pending */	1303	/* queue idle watchers unless io or timers are pending */
1199	if (idlecnt && !any_pending (EV_A))	1304	if (idlecnt && !any_pending (EV_A))
1200	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1305	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1201		1306
1202	/* queue check watchers, to be executed first */	1307	/* queue check watchers, to be executed first */
1203	if (checkcnt)	1308	if (expect_false (checkcnt))
1204	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1309	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1205		1310
1206	call_pending (EV_A);	1311	call_pending (EV_A);
		1312
		1313	if (expect_false (loop_done))
		1314	break;
1207	}	1315	}
1208	while (activecnt && !loop_done);
1209		1316
1210	if (loop_done != 2)	1317	if (loop_done != 2)
1211	loop_done = 0;	1318	loop_done = 0;
1212	}	1319	}
1213		1320
…		…
1273	void	1380	void
1274	ev_io_start (EV_P_ struct ev_io *w)	1381	ev_io_start (EV_P_ struct ev_io *w)
1275	{	1382	{
1276	int fd = w->fd;	1383	int fd = w->fd;
1277		1384
1278	if (ev_is_active (w))	1385	if (expect_false (ev_is_active (w)))
1279	return;	1386	return;
1280		1387
1281	assert (("ev_io_start called with negative fd", fd >= 0));	1388	assert (("ev_io_start called with negative fd", fd >= 0));
1282		1389
1283	ev_start (EV_A_ (W)w, 1);	1390	ev_start (EV_A_ (W)w, 1);
…		…
1289		1396
1290	void	1397	void
1291	ev_io_stop (EV_P_ struct ev_io *w)	1398	ev_io_stop (EV_P_ struct ev_io *w)
1292	{	1399	{
1293	ev_clear_pending (EV_A_ (W)w);	1400	ev_clear_pending (EV_A_ (W)w);
1294	if (!ev_is_active (w))	1401	if (expect_false (!ev_is_active (w)))
1295	return;	1402	return;
1296		1403
1297	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1404	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1298		1405
1299	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1406	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1303	}	1410	}
1304		1411
1305	void	1412	void
1306	ev_timer_start (EV_P_ struct ev_timer *w)	1413	ev_timer_start (EV_P_ struct ev_timer *w)
1307	{	1414	{
1308	if (ev_is_active (w))	1415	if (expect_false (ev_is_active (w)))
1309	return;	1416	return;
1310		1417
1311	((WT)w)->at += mn_now;	1418	((WT)w)->at += mn_now;
1312		1419
1313	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1420	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1314		1421
1315	ev_start (EV_A_ (W)w, ++timercnt);	1422	ev_start (EV_A_ (W)w, ++timercnt);
1316	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1423	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1317	timers [timercnt - 1] = w;	1424	timers [timercnt - 1] = w;
1318	upheap ((WT *)timers, timercnt - 1);	1425	upheap ((WT *)timers, timercnt - 1);
1319		1426
1320	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1427	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1321	}	1428	}
1322		1429
1323	void	1430	void
1324	ev_timer_stop (EV_P_ struct ev_timer *w)	1431	ev_timer_stop (EV_P_ struct ev_timer *w)
1325	{	1432	{
1326	ev_clear_pending (EV_A_ (W)w);	1433	ev_clear_pending (EV_A_ (W)w);
1327	if (!ev_is_active (w))	1434	if (expect_false (!ev_is_active (w)))
1328	return;	1435	return;
1329		1436
1330	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1437	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1331		1438
1332	if (((W)w)->active < timercnt--)	1439	if (expect_true (((W)w)->active < timercnt--))
1333	{	1440	{
1334	timers [((W)w)->active - 1] = timers [timercnt];	1441	timers [((W)w)->active - 1] = timers [timercnt];
1335	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1442	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1336	}	1443	}
1337		1444
1338	((WT)w)->at = w->repeat;	1445	((WT)w)->at -= mn_now;
1339		1446
1340	ev_stop (EV_A_ (W)w);	1447	ev_stop (EV_A_ (W)w);
1341	}	1448	}
1342		1449
1343	void	1450	void
1344	ev_timer_again (EV_P_ struct ev_timer *w)	1451	ev_timer_again (EV_P_ struct ev_timer *w)
1345	{	1452	{
1346	if (ev_is_active (w))	1453	if (ev_is_active (w))
1347	{	1454	{
1348	if (w->repeat)	1455	if (w->repeat)
		1456	{
		1457	((WT)w)->at = mn_now + w->repeat;
1349	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1458	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1459	}
1350	else	1460	else
1351	ev_timer_stop (EV_A_ w);	1461	ev_timer_stop (EV_A_ w);
1352	}	1462	}
1353	else if (w->repeat)	1463	else if (w->repeat)
		1464	{
		1465	w->at = w->repeat;
1354	ev_timer_start (EV_A_ w);	1466	ev_timer_start (EV_A_ w);
		1467	}
1355	}	1468	}
1356		1469
		1470	#if EV_PERIODICS
1357	void	1471	void
1358	ev_periodic_start (EV_P_ struct ev_periodic *w)	1472	ev_periodic_start (EV_P_ struct ev_periodic *w)
1359	{	1473	{
1360	if (ev_is_active (w))	1474	if (expect_false (ev_is_active (w)))
1361	return;	1475	return;
1362		1476
1363	if (w->reschedule_cb)	1477	if (w->reschedule_cb)
1364	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1478	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1365	else if (w->interval)	1479	else if (w->interval)
…		…
1368	/* this formula differs from the one in periodic_reify because we do not always round up */	1482	/* this formula differs from the one in periodic_reify because we do not always round up */
1369	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1483	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1370	}	1484	}
1371		1485
1372	ev_start (EV_A_ (W)w, ++periodiccnt);	1486	ev_start (EV_A_ (W)w, ++periodiccnt);
1373	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1487	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1374	periodics [periodiccnt - 1] = w;	1488	periodics [periodiccnt - 1] = w;
1375	upheap ((WT *)periodics, periodiccnt - 1);	1489	upheap ((WT *)periodics, periodiccnt - 1);
1376		1490
1377	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1491	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1378	}	1492	}
1379		1493
1380	void	1494	void
1381	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1495	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1382	{	1496	{
1383	ev_clear_pending (EV_A_ (W)w);	1497	ev_clear_pending (EV_A_ (W)w);
1384	if (!ev_is_active (w))	1498	if (expect_false (!ev_is_active (w)))
1385	return;	1499	return;
1386		1500
1387	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1501	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1388		1502
1389	if (((W)w)->active < periodiccnt--)	1503	if (expect_true (((W)w)->active < periodiccnt--))
1390	{	1504	{
1391	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1505	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1392	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1506	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1393	}	1507	}
1394		1508
1395	ev_stop (EV_A_ (W)w);	1509	ev_stop (EV_A_ (W)w);
1396	}	1510	}
1397		1511
…		…
1400	{	1514	{
1401	/* TODO: use adjustheap and recalculation */	1515	/* TODO: use adjustheap and recalculation */
1402	ev_periodic_stop (EV_A_ w);	1516	ev_periodic_stop (EV_A_ w);
1403	ev_periodic_start (EV_A_ w);	1517	ev_periodic_start (EV_A_ w);
1404	}	1518	}
		1519	#endif
1405		1520
1406	void	1521	void
1407	ev_idle_start (EV_P_ struct ev_idle *w)	1522	ev_idle_start (EV_P_ struct ev_idle *w)
1408	{	1523	{
1409	if (ev_is_active (w))	1524	if (expect_false (ev_is_active (w)))
1410	return;	1525	return;
1411		1526
1412	ev_start (EV_A_ (W)w, ++idlecnt);	1527	ev_start (EV_A_ (W)w, ++idlecnt);
1413	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1528	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1414	idles [idlecnt - 1] = w;	1529	idles [idlecnt - 1] = w;
1415	}	1530	}
1416		1531
1417	void	1532	void
1418	ev_idle_stop (EV_P_ struct ev_idle *w)	1533	ev_idle_stop (EV_P_ struct ev_idle *w)
1419	{	1534	{
1420	ev_clear_pending (EV_A_ (W)w);	1535	ev_clear_pending (EV_A_ (W)w);
1421	if (ev_is_active (w))	1536	if (expect_false (!ev_is_active (w)))
1422	return;	1537	return;
1423		1538
1424	idles [((W)w)->active - 1] = idles [--idlecnt];	1539	idles [((W)w)->active - 1] = idles [--idlecnt];
1425	ev_stop (EV_A_ (W)w);	1540	ev_stop (EV_A_ (W)w);
1426	}	1541	}
1427		1542
1428	void	1543	void
1429	ev_prepare_start (EV_P_ struct ev_prepare *w)	1544	ev_prepare_start (EV_P_ struct ev_prepare *w)
1430	{	1545	{
1431	if (ev_is_active (w))	1546	if (expect_false (ev_is_active (w)))
1432	return;	1547	return;
1433		1548
1434	ev_start (EV_A_ (W)w, ++preparecnt);	1549	ev_start (EV_A_ (W)w, ++preparecnt);
1435	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1550	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1436	prepares [preparecnt - 1] = w;	1551	prepares [preparecnt - 1] = w;
1437	}	1552	}
1438		1553
1439	void	1554	void
1440	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1555	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1441	{	1556	{
1442	ev_clear_pending (EV_A_ (W)w);	1557	ev_clear_pending (EV_A_ (W)w);
1443	if (ev_is_active (w))	1558	if (expect_false (!ev_is_active (w)))
1444	return;	1559	return;
1445		1560
1446	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1561	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1447	ev_stop (EV_A_ (W)w);	1562	ev_stop (EV_A_ (W)w);
1448	}	1563	}
1449		1564
1450	void	1565	void
1451	ev_check_start (EV_P_ struct ev_check *w)	1566	ev_check_start (EV_P_ struct ev_check *w)
1452	{	1567	{
1453	if (ev_is_active (w))	1568	if (expect_false (ev_is_active (w)))
1454	return;	1569	return;
1455		1570
1456	ev_start (EV_A_ (W)w, ++checkcnt);	1571	ev_start (EV_A_ (W)w, ++checkcnt);
1457	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1572	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1458	checks [checkcnt - 1] = w;	1573	checks [checkcnt - 1] = w;
1459	}	1574	}
1460		1575
1461	void	1576	void
1462	ev_check_stop (EV_P_ struct ev_check *w)	1577	ev_check_stop (EV_P_ struct ev_check *w)
1463	{	1578	{
1464	ev_clear_pending (EV_A_ (W)w);	1579	ev_clear_pending (EV_A_ (W)w);
1465	if (ev_is_active (w))	1580	if (expect_false (!ev_is_active (w)))
1466	return;	1581	return;
1467		1582
1468	checks [((W)w)->active - 1] = checks [--checkcnt];	1583	checks [((W)w)->active - 1] = checks [--checkcnt];
1469	ev_stop (EV_A_ (W)w);	1584	ev_stop (EV_A_ (W)w);
1470	}	1585	}
…		…
1475		1590
1476	void	1591	void
1477	ev_signal_start (EV_P_ struct ev_signal *w)	1592	ev_signal_start (EV_P_ struct ev_signal *w)
1478	{	1593	{
1479	#if EV_MULTIPLICITY	1594	#if EV_MULTIPLICITY
1480	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1595	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1481	#endif	1596	#endif
1482	if (ev_is_active (w))	1597	if (expect_false (ev_is_active (w)))
1483	return;	1598	return;
1484		1599
1485	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1600	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1486		1601
1487	ev_start (EV_A_ (W)w, 1);	1602	ev_start (EV_A_ (W)w, 1);
1488	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1603	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1489	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1604	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1490		1605
1491	if (!((WL)w)->next)	1606	if (!((WL)w)->next)
1492	{	1607	{
1493	#if WIN32	1608	#if _WIN32
1494	signal (w->signum, sighandler);	1609	signal (w->signum, sighandler);
1495	#else	1610	#else
1496	struct sigaction sa;	1611	struct sigaction sa;
1497	sa.sa_handler = sighandler;	1612	sa.sa_handler = sighandler;
1498	sigfillset (&sa.sa_mask);	1613	sigfillset (&sa.sa_mask);
…		…
1504		1619
1505	void	1620	void
1506	ev_signal_stop (EV_P_ struct ev_signal *w)	1621	ev_signal_stop (EV_P_ struct ev_signal *w)
1507	{	1622	{
1508	ev_clear_pending (EV_A_ (W)w);	1623	ev_clear_pending (EV_A_ (W)w);
1509	if (!ev_is_active (w))	1624	if (expect_false (!ev_is_active (w)))
1510	return;	1625	return;
1511		1626
1512	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1627	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1513	ev_stop (EV_A_ (W)w);	1628	ev_stop (EV_A_ (W)w);
1514		1629
…		…
1518		1633
1519	void	1634	void
1520	ev_child_start (EV_P_ struct ev_child *w)	1635	ev_child_start (EV_P_ struct ev_child *w)
1521	{	1636	{
1522	#if EV_MULTIPLICITY	1637	#if EV_MULTIPLICITY
1523	assert (("child watchers are only supported in the default loop", loop == default_loop));	1638	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1524	#endif	1639	#endif
1525	if (ev_is_active (w))	1640	if (expect_false (ev_is_active (w)))
1526	return;	1641	return;
1527		1642
1528	ev_start (EV_A_ (W)w, 1);	1643	ev_start (EV_A_ (W)w, 1);
1529	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1644	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1530	}	1645	}
1531		1646
1532	void	1647	void
1533	ev_child_stop (EV_P_ struct ev_child *w)	1648	ev_child_stop (EV_P_ struct ev_child *w)
1534	{	1649	{
1535	ev_clear_pending (EV_A_ (W)w);	1650	ev_clear_pending (EV_A_ (W)w);
1536	if (ev_is_active (w))	1651	if (expect_false (!ev_is_active (w)))
1537	return;	1652	return;
1538		1653
1539	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1654	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1540	ev_stop (EV_A_ (W)w);	1655	ev_stop (EV_A_ (W)w);
1541	}	1656	}
…		…
1578	void	1693	void
1579	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1694	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1580	{	1695	{
1581	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1696	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1582		1697
1583	if (!once)	1698	if (expect_false (!once))
		1699	{
1584	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1700	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1585	else	1701	return;
1586	{	1702	}
		1703
1587	once->cb = cb;	1704	once->cb = cb;
1588	once->arg = arg;	1705	once->arg = arg;
1589		1706
1590	ev_init (&once->io, once_cb_io);	1707	ev_init (&once->io, once_cb_io);
1591	if (fd >= 0)	1708	if (fd >= 0)
1592	{	1709	{
1593	ev_io_set (&once->io, fd, events);	1710	ev_io_set (&once->io, fd, events);
1594	ev_io_start (EV_A_ &once->io);	1711	ev_io_start (EV_A_ &once->io);
1595	}	1712	}
1596		1713
1597	ev_init (&once->to, once_cb_to);	1714	ev_init (&once->to, once_cb_to);
1598	if (timeout >= 0.)	1715	if (timeout >= 0.)
1599	{	1716	{
1600	ev_timer_set (&once->to, timeout, 0.);	1717	ev_timer_set (&once->to, timeout, 0.);
1601	ev_timer_start (EV_A_ &once->to);	1718	ev_timer_start (EV_A_ &once->to);
1602	}
1603	}	1719	}
1604	}	1720	}
1605		1721
1606	#ifdef __cplusplus	1722	#ifdef __cplusplus
1607	}	1723	}

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Comparing libev/ev.c (file contents): Revision 1.89 by root, Sat Nov 10 19:48:44 2007 UTC vs. Revision 1.129 by root, Fri Nov 23 05:00:44 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.89 by root, Sat Nov 10 19:48:44 2007 UTC vs.
Revision 1.129 by root, Fri Nov 23 05:00:44 2007 UTC