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

Comparing libev/ev.c (file contents):
Revision 1.102 by root, Sun Nov 11 17:56:11 2007 UTC vs.
Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC

…		…
41	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
42	# endif	42	# endif
43	# ifndef EV_USE_REALTIME	43	# ifndef EV_USE_REALTIME
44	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
45	# endif	45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
46	# endif	53	# endif
47		54
48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)	55	# ifndef EV_USE_SELECT
		56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
49	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
50	# endif	61	# endif
51		62
52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)	63	# ifndef EV_USE_POLL
		64	# if HAVE_POLL && HAVE_POLL_H
53	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
54	# endif	69	# endif
55		70
56	# if HAVE_EPOLL_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
…		…
690		738
691	#endif	739	#endif
692		740
693	/*****************************************************************************/	741	/*****************************************************************************/
694		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
695	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
696	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
697	#endif	748	#endif
698	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
699	# include "ev_epoll.c"	750	# include "ev_epoll.c"
…		…
719		770
720	/* 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 */
721	static int	772	static int
722	enable_secure (void)	773	enable_secure (void)
723	{	774	{
724	#ifdef WIN32	775	#ifdef _WIN32
725	return 0;	776	return 0;
726	#else	777	#else
727	return getuid () != geteuid ()	778	return getuid () != geteuid ()
728	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
729	#endif	780	#endif
730	}	781	}
731		782
732	int	783	unsigned int
733	ev_method (EV_P)	784	ev_supported_backends (void)
734	{	785	{
735	return method;	786	unsigned int flags = 0;
736	}
737		787
738	static void	788	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
739	loop_init (EV_P_ int methods)	789	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		790	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		791	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		792	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		793
		794	return flags;
		795	}
		796
		797	unsigned int
		798	ev_recommended_backends (void)
740	{	799	{
741	if (!method)	800	unsigned int flags = ev_recommended_backends ();
		801
		802	#ifndef __NetBSD__
		803	/* kqueue is borked on everything but netbsd apparently */
		804	/* it usually doesn't work correctly on anything but sockets and pipes */
		805	flags &= ~EVBACKEND_KQUEUE;
		806	#endif
		807	#ifdef __APPLE__
		808	// flags &= ~EVBACKEND_KQUEUE; for documentation
		809	flags &= ~EVBACKEND_POLL;
		810	#endif
		811
		812	return flags;
		813	}
		814
		815	unsigned int
		816	ev_backend (EV_P)
		817	{
		818	return backend;
		819	}
		820
		821	static void
		822	loop_init (EV_P_ unsigned int flags)
		823	{
		824	if (!backend)
742	{	825	{
743	#if EV_USE_MONOTONIC	826	#if EV_USE_MONOTONIC
744	{	827	{
745	struct timespec ts;	828	struct timespec ts;
746	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	829	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
751	ev_rt_now = ev_time ();	834	ev_rt_now = ev_time ();
752	mn_now = get_clock ();	835	mn_now = get_clock ();
753	now_floor = mn_now;	836	now_floor = mn_now;
754	rtmn_diff = ev_rt_now - mn_now;	837	rtmn_diff = ev_rt_now - mn_now;
755		838
756	if (methods == EVMETHOD_AUTO)	839	if (!(flags & EVFLAG_NOENV)
757	if (!enable_secure () && getenv ("LIBEV_METHODS"))	840	&& !enable_secure ()
		841	&& getenv ("LIBEV_FLAGS"))
758	methods = atoi (getenv ("LIBEV_METHODS"));	842	flags = atoi (getenv ("LIBEV_FLAGS"));
759	else
760	methods = EVMETHOD_ANY;
761		843
762	method = 0;	844	if (!(flags & 0x0000ffffUL))
763	#if EV_USE_WIN32	845	flags \|= ev_recommended_backends ();
764	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	846
		847	backend = 0;
		848	#if EV_USE_PORT
		849	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
765	#endif	850	#endif
766	#if EV_USE_KQUEUE	851	#if EV_USE_KQUEUE
767	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	852	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
768	#endif	853	#endif
769	#if EV_USE_EPOLL	854	#if EV_USE_EPOLL
770	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	855	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
771	#endif	856	#endif
772	#if EV_USE_POLL	857	#if EV_USE_POLL
773	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	858	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
774	#endif	859	#endif
775	#if EV_USE_SELECT	860	#if EV_USE_SELECT
776	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	861	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
777	#endif	862	#endif
778		863
779	ev_init (&sigev, sigcb);	864	ev_init (&sigev, sigcb);
780	ev_set_priority (&sigev, EV_MAXPRI);	865	ev_set_priority (&sigev, EV_MAXPRI);
781	}	866	}
782	}	867	}
783		868
784	void	869	static void
785	loop_destroy (EV_P)	870	loop_destroy (EV_P)
786	{	871	{
787	int i;	872	int i;
788		873
789	#if EV_USE_WIN32	874	#if EV_USE_PORT
790	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	875	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
791	#endif	876	#endif
792	#if EV_USE_KQUEUE	877	#if EV_USE_KQUEUE
793	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	878	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
794	#endif	879	#endif
795	#if EV_USE_EPOLL	880	#if EV_USE_EPOLL
796	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	881	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
797	#endif	882	#endif
798	#if EV_USE_POLL	883	#if EV_USE_POLL
799	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	884	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
800	#endif	885	#endif
801	#if EV_USE_SELECT	886	#if EV_USE_SELECT
802	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	887	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
803	#endif	888	#endif
804		889
805	for (i = NUMPRI; i--; )	890	for (i = NUMPRI; i--; )
806	array_free (pending, [i]);	891	array_free (pending, [i]);
807		892
808	/* have to use the microsoft-never-gets-it-right macro */	893	/* have to use the microsoft-never-gets-it-right macro */
809	array_free_microshit (fdchange);	894	array_free (fdchange, EMPTY0);
810	array_free_microshit (timer);	895	array_free (timer, EMPTY0);
811	#if EV_PERIODICS	896	#if EV_PERIODICS
812	array_free_microshit (periodic);	897	array_free (periodic, EMPTY0);
813	#endif	898	#endif
814	array_free_microshit (idle);	899	array_free (idle, EMPTY0);
815	array_free_microshit (prepare);	900	array_free (prepare, EMPTY0);
816	array_free_microshit (check);	901	array_free (check, EMPTY0);
817		902
818	method = 0;	903	backend = 0;
819	}	904	}
820		905
821	static void	906	static void
822	loop_fork (EV_P)	907	loop_fork (EV_P)
823	{	908	{
		909	#if EV_USE_PORT
		910	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		911	#endif
		912	#if EV_USE_KQUEUE
		913	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		914	#endif
824	#if EV_USE_EPOLL	915	#if EV_USE_EPOLL
825	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	916	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	917	#endif
830		918
831	if (ev_is_active (&sigev))	919	if (ev_is_active (&sigev))
832	{	920	{
833	/* default loop */	921	/* default loop */
…		…
846	postfork = 0;	934	postfork = 0;
847	}	935	}
848		936
849	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
850	struct ev_loop *	938	struct ev_loop *
851	ev_loop_new (int methods)	939	ev_loop_new (unsigned int flags)
852	{	940	{
853	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	941	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
854		942
855	memset (loop, 0, sizeof (struct ev_loop));	943	memset (loop, 0, sizeof (struct ev_loop));
856		944
857	loop_init (EV_A_ methods);	945	loop_init (EV_A_ flags);
858		946
859	if (ev_method (EV_A))	947	if (ev_backend (EV_A))
860	return loop;	948	return loop;
861		949
862	return 0;	950	return 0;
863	}	951	}
864		952
…		…
877		965
878	#endif	966	#endif
879		967
880	#if EV_MULTIPLICITY	968	#if EV_MULTIPLICITY
881	struct ev_loop *	969	struct ev_loop *
		970	ev_default_loop_init (unsigned int flags)
882	#else	971	#else
883	int	972	int
		973	ev_default_loop (unsigned int flags)
884	#endif	974	#endif
885	ev_default_loop (int methods)
886	{	975	{
887	if (sigpipe [0] == sigpipe [1])	976	if (sigpipe [0] == sigpipe [1])
888	if (pipe (sigpipe))	977	if (pipe (sigpipe))
889	return 0;	978	return 0;
890		979
891	if (!default_loop)	980	if (!ev_default_loop_ptr)
892	{	981	{
893	#if EV_MULTIPLICITY	982	#if EV_MULTIPLICITY
894	struct ev_loop *loop = default_loop = &default_loop_struct;	983	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
895	#else	984	#else
896	default_loop = 1;	985	ev_default_loop_ptr = 1;
897	#endif	986	#endif
898		987
899	loop_init (EV_A_ methods);	988	loop_init (EV_A_ flags);
900		989
901	if (ev_method (EV_A))	990	if (ev_backend (EV_A))
902	{	991	{
903	siginit (EV_A);	992	siginit (EV_A);
904		993
905	#ifndef WIN32	994	#ifndef _WIN32
906	ev_signal_init (&childev, childcb, SIGCHLD);	995	ev_signal_init (&childev, childcb, SIGCHLD);
907	ev_set_priority (&childev, EV_MAXPRI);	996	ev_set_priority (&childev, EV_MAXPRI);
908	ev_signal_start (EV_A_ &childev);	997	ev_signal_start (EV_A_ &childev);
909	ev_unref (EV_A); /* child watcher should not keep loop alive */	998	ev_unref (EV_A); /* child watcher should not keep loop alive */
910	#endif	999	#endif
911	}	1000	}
912	else	1001	else
913	default_loop = 0;	1002	ev_default_loop_ptr = 0;
914	}	1003	}
915		1004
916	return default_loop;	1005	return ev_default_loop_ptr;
917	}	1006	}
918		1007
919	void	1008	void
920	ev_default_destroy (void)	1009	ev_default_destroy (void)
921	{	1010	{
922	#if EV_MULTIPLICITY	1011	#if EV_MULTIPLICITY
923	struct ev_loop *loop = default_loop;	1012	struct ev_loop *loop = ev_default_loop_ptr;
924	#endif	1013	#endif
925		1014
926	#ifndef WIN32	1015	#ifndef _WIN32
927	ev_ref (EV_A); /* child watcher */	1016	ev_ref (EV_A); /* child watcher */
928	ev_signal_stop (EV_A_ &childev);	1017	ev_signal_stop (EV_A_ &childev);
929	#endif	1018	#endif
930		1019
931	ev_ref (EV_A); /* signal watcher */	1020	ev_ref (EV_A); /* signal watcher */
…		…
939		1028
940	void	1029	void
941	ev_default_fork (void)	1030	ev_default_fork (void)
942	{	1031	{
943	#if EV_MULTIPLICITY	1032	#if EV_MULTIPLICITY
944	struct ev_loop *loop = default_loop;	1033	struct ev_loop *loop = ev_default_loop_ptr;
945	#endif	1034	#endif
946		1035
947	if (method)	1036	if (backend)
948	postfork = 1;	1037	postfork = 1;
949	}	1038	}
950		1039
951	/*****************************************************************************/	1040	/*****************************************************************************/
952		1041
…		…
960	return 1;	1049	return 1;
961		1050
962	return 0;	1051	return 0;
963	}	1052	}
964		1053
965	static void	1054	inline void
966	call_pending (EV_P)	1055	call_pending (EV_P)
967	{	1056	{
968	int pri;	1057	int pri;
969		1058
970	for (pri = NUMPRI; pri--; )	1059	for (pri = NUMPRI; pri--; )
971	while (pendingcnt [pri])	1060	while (pendingcnt [pri])
972	{	1061	{
973	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1062	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
974		1063
975	if (p->w)	1064	if (expect_true (p->w))
976	{	1065	{
977	p->w->pending = 0;	1066	p->w->pending = 0;
978	EV_CB_INVOKE (p->w, p->events);	1067	EV_CB_INVOKE (p->w, p->events);
979	}	1068	}
980	}	1069	}
981	}	1070	}
982		1071
983	static void	1072	inline void
984	timers_reify (EV_P)	1073	timers_reify (EV_P)
985	{	1074	{
986	while (timercnt && ((WT)timers [0])->at <= mn_now)	1075	while (timercnt && ((WT)timers [0])->at <= mn_now)
987	{	1076	{
988	struct ev_timer *w = timers [0];	1077	struct ev_timer *w = timers [0];
…		…
1006	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1095	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1007	}	1096	}
1008	}	1097	}
1009		1098
1010	#if EV_PERIODICS	1099	#if EV_PERIODICS
1011	static void	1100	inline void
1012	periodics_reify (EV_P)	1101	periodics_reify (EV_P)
1013	{	1102	{
1014	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1103	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1015	{	1104	{
1016	struct ev_periodic *w = periodics [0];	1105	struct ev_periodic *w = periodics [0];
…		…
1018	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1107	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1019		1108
1020	/* first reschedule or stop timer */	1109	/* first reschedule or stop timer */
1021	if (w->reschedule_cb)	1110	if (w->reschedule_cb)
1022	{	1111	{
1023	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1024
1025	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1113	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1026	downheap ((WT *)periodics, periodiccnt, 0);	1114	downheap ((WT *)periodics, periodiccnt, 0);
1027	}	1115	}
1028	else if (w->interval)	1116	else if (w->interval)
1029	{	1117	{
…		…
1076	ev_rt_now = ev_time ();	1164	ev_rt_now = ev_time ();
1077	return 1;	1165	return 1;
1078	}	1166	}
1079	}	1167	}
1080		1168
1081	static void	1169	inline void
1082	time_update (EV_P)	1170	time_update (EV_P)
1083	{	1171	{
1084	int i;	1172	int i;
1085		1173
1086	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
…		…
1147	ev_loop (EV_P_ int flags)	1235	ev_loop (EV_P_ int flags)
1148	{	1236	{
1149	double block;	1237	double block;
1150	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1238	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1151		1239
1152	do	1240	while (activecnt)
1153	{	1241	{
1154	/* queue check watchers (and execute them) */	1242	/* queue check watchers (and execute them) */
1155	if (expect_false (preparecnt))	1243	if (expect_false (preparecnt))
1156	{	1244	{
1157	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1245	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1185	{	1273	{
1186	block = MAX_BLOCKTIME;	1274	block = MAX_BLOCKTIME;
1187		1275
1188	if (timercnt)	1276	if (timercnt)
1189	{	1277	{
1190	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1278	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1191	if (block > to) block = to;	1279	if (block > to) block = to;
1192	}	1280	}
1193		1281
1194	#if EV_PERIODICS	1282	#if EV_PERIODICS
1195	if (periodiccnt)	1283	if (periodiccnt)
1196	{	1284	{
1197	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1285	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1198	if (block > to) block = to;	1286	if (block > to) block = to;
1199	}	1287	}
1200	#endif	1288	#endif
1201		1289
1202	if (block < 0.) block = 0.;	1290	if (expect_false (block < 0.)) block = 0.;
1203	}	1291	}
1204		1292
1205	method_poll (EV_A_ block);	1293	backend_poll (EV_A_ block);
1206		1294
1207	/* update ev_rt_now, do magic */	1295	/* update ev_rt_now, do magic */
1208	time_update (EV_A);	1296	time_update (EV_A);
1209		1297
1210	/* queue pending timers and reschedule them */	1298	/* queue pending timers and reschedule them */
…		…
1216	/* queue idle watchers unless io or timers are pending */	1304	/* queue idle watchers unless io or timers are pending */
1217	if (idlecnt && !any_pending (EV_A))	1305	if (idlecnt && !any_pending (EV_A))
1218	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1306	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1219		1307
1220	/* queue check watchers, to be executed first */	1308	/* queue check watchers, to be executed first */
1221	if (checkcnt)	1309	if (expect_false (checkcnt))
1222	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1310	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1223		1311
1224	call_pending (EV_A);	1312	call_pending (EV_A);
		1313
		1314	if (expect_false (loop_done))
		1315	break;
1225	}	1316	}
1226	while (activecnt && !loop_done);
1227		1317
1228	if (loop_done != 2)	1318	if (loop_done != 2)
1229	loop_done = 0;	1319	loop_done = 0;
1230	}	1320	}
1231		1321
…		…
1291	void	1381	void
1292	ev_io_start (EV_P_ struct ev_io *w)	1382	ev_io_start (EV_P_ struct ev_io *w)
1293	{	1383	{
1294	int fd = w->fd;	1384	int fd = w->fd;
1295		1385
1296	if (ev_is_active (w))	1386	if (expect_false (ev_is_active (w)))
1297	return;	1387	return;
1298		1388
1299	assert (("ev_io_start called with negative fd", fd >= 0));	1389	assert (("ev_io_start called with negative fd", fd >= 0));
1300		1390
1301	ev_start (EV_A_ (W)w, 1);	1391	ev_start (EV_A_ (W)w, 1);
…		…
1307		1397
1308	void	1398	void
1309	ev_io_stop (EV_P_ struct ev_io *w)	1399	ev_io_stop (EV_P_ struct ev_io *w)
1310	{	1400	{
1311	ev_clear_pending (EV_A_ (W)w);	1401	ev_clear_pending (EV_A_ (W)w);
1312	if (!ev_is_active (w))	1402	if (expect_false (!ev_is_active (w)))
1313	return;	1403	return;
1314		1404
1315	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1405	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1316		1406
1317	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1407	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1321	}	1411	}
1322		1412
1323	void	1413	void
1324	ev_timer_start (EV_P_ struct ev_timer *w)	1414	ev_timer_start (EV_P_ struct ev_timer *w)
1325	{	1415	{
1326	if (ev_is_active (w))	1416	if (expect_false (ev_is_active (w)))
1327	return;	1417	return;
1328		1418
1329	((WT)w)->at += mn_now;	1419	((WT)w)->at += mn_now;
1330		1420
1331	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1421	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1332		1422
1333	ev_start (EV_A_ (W)w, ++timercnt);	1423	ev_start (EV_A_ (W)w, ++timercnt);
1334	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1424	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1335	timers [timercnt - 1] = w;	1425	timers [timercnt - 1] = w;
1336	upheap ((WT *)timers, timercnt - 1);	1426	upheap ((WT *)timers, timercnt - 1);
1337		1427
1338	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1428	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1339	}	1429	}
1340		1430
1341	void	1431	void
1342	ev_timer_stop (EV_P_ struct ev_timer *w)	1432	ev_timer_stop (EV_P_ struct ev_timer *w)
1343	{	1433	{
1344	ev_clear_pending (EV_A_ (W)w);	1434	ev_clear_pending (EV_A_ (W)w);
1345	if (!ev_is_active (w))	1435	if (expect_false (!ev_is_active (w)))
1346	return;	1436	return;
1347		1437
1348	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1438	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1349		1439
1350	if (((W)w)->active < timercnt--)	1440	if (expect_true (((W)w)->active < timercnt--))
1351	{	1441	{
1352	timers [((W)w)->active - 1] = timers [timercnt];	1442	timers [((W)w)->active - 1] = timers [timercnt];
1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1443	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1354	}	1444	}
1355		1445
…		…
1370	}	1460	}
1371	else	1461	else
1372	ev_timer_stop (EV_A_ w);	1462	ev_timer_stop (EV_A_ w);
1373	}	1463	}
1374	else if (w->repeat)	1464	else if (w->repeat)
		1465	{
		1466	w->at = w->repeat;
1375	ev_timer_start (EV_A_ w);	1467	ev_timer_start (EV_A_ w);
		1468	}
1376	}	1469	}
1377		1470
1378	#if EV_PERIODICS	1471	#if EV_PERIODICS
1379	void	1472	void
1380	ev_periodic_start (EV_P_ struct ev_periodic *w)	1473	ev_periodic_start (EV_P_ struct ev_periodic *w)
1381	{	1474	{
1382	if (ev_is_active (w))	1475	if (expect_false (ev_is_active (w)))
1383	return;	1476	return;
1384		1477
1385	if (w->reschedule_cb)	1478	if (w->reschedule_cb)
1386	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1479	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1387	else if (w->interval)	1480	else if (w->interval)
…		…
1390	/* this formula differs from the one in periodic_reify because we do not always round up */	1483	/* this formula differs from the one in periodic_reify because we do not always round up */
1391	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1484	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1392	}	1485	}
1393		1486
1394	ev_start (EV_A_ (W)w, ++periodiccnt);	1487	ev_start (EV_A_ (W)w, ++periodiccnt);
1395	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1488	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1396	periodics [periodiccnt - 1] = w;	1489	periodics [periodiccnt - 1] = w;
1397	upheap ((WT *)periodics, periodiccnt - 1);	1490	upheap ((WT *)periodics, periodiccnt - 1);
1398		1491
1399	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1492	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1400	}	1493	}
1401		1494
1402	void	1495	void
1403	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1496	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1404	{	1497	{
1405	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1406	if (!ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1407	return;	1500	return;
1408		1501
1409	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1502	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1410		1503
1411	if (((W)w)->active < periodiccnt--)	1504	if (expect_true (((W)w)->active < periodiccnt--))
1412	{	1505	{
1413	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1506	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1414	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1507	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1415	}	1508	}
1416		1509
…		…
1427	#endif	1520	#endif
1428		1521
1429	void	1522	void
1430	ev_idle_start (EV_P_ struct ev_idle *w)	1523	ev_idle_start (EV_P_ struct ev_idle *w)
1431	{	1524	{
1432	if (ev_is_active (w))	1525	if (expect_false (ev_is_active (w)))
1433	return;	1526	return;
1434		1527
1435	ev_start (EV_A_ (W)w, ++idlecnt);	1528	ev_start (EV_A_ (W)w, ++idlecnt);
1436	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1529	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1437	idles [idlecnt - 1] = w;	1530	idles [idlecnt - 1] = w;
1438	}	1531	}
1439		1532
1440	void	1533	void
1441	ev_idle_stop (EV_P_ struct ev_idle *w)	1534	ev_idle_stop (EV_P_ struct ev_idle *w)
1442	{	1535	{
1443	ev_clear_pending (EV_A_ (W)w);	1536	ev_clear_pending (EV_A_ (W)w);
1444	if (!ev_is_active (w))	1537	if (expect_false (!ev_is_active (w)))
1445	return;	1538	return;
1446		1539
1447	idles [((W)w)->active - 1] = idles [--idlecnt];	1540	idles [((W)w)->active - 1] = idles [--idlecnt];
1448	ev_stop (EV_A_ (W)w);	1541	ev_stop (EV_A_ (W)w);
1449	}	1542	}
1450		1543
1451	void	1544	void
1452	ev_prepare_start (EV_P_ struct ev_prepare *w)	1545	ev_prepare_start (EV_P_ struct ev_prepare *w)
1453	{	1546	{
1454	if (ev_is_active (w))	1547	if (expect_false (ev_is_active (w)))
1455	return;	1548	return;
1456		1549
1457	ev_start (EV_A_ (W)w, ++preparecnt);	1550	ev_start (EV_A_ (W)w, ++preparecnt);
1458	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1551	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1459	prepares [preparecnt - 1] = w;	1552	prepares [preparecnt - 1] = w;
1460	}	1553	}
1461		1554
1462	void	1555	void
1463	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1556	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1464	{	1557	{
1465	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1466	if (!ev_is_active (w))	1559	if (expect_false (!ev_is_active (w)))
1467	return;	1560	return;
1468		1561
1469	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1562	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1470	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1471	}	1564	}
1472		1565
1473	void	1566	void
1474	ev_check_start (EV_P_ struct ev_check *w)	1567	ev_check_start (EV_P_ struct ev_check *w)
1475	{	1568	{
1476	if (ev_is_active (w))	1569	if (expect_false (ev_is_active (w)))
1477	return;	1570	return;
1478		1571
1479	ev_start (EV_A_ (W)w, ++checkcnt);	1572	ev_start (EV_A_ (W)w, ++checkcnt);
1480	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1573	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1481	checks [checkcnt - 1] = w;	1574	checks [checkcnt - 1] = w;
1482	}	1575	}
1483		1576
1484	void	1577	void
1485	ev_check_stop (EV_P_ struct ev_check *w)	1578	ev_check_stop (EV_P_ struct ev_check *w)
1486	{	1579	{
1487	ev_clear_pending (EV_A_ (W)w);	1580	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1581	if (expect_false (!ev_is_active (w)))
1489	return;	1582	return;
1490		1583
1491	checks [((W)w)->active - 1] = checks [--checkcnt];	1584	checks [((W)w)->active - 1] = checks [--checkcnt];
1492	ev_stop (EV_A_ (W)w);	1585	ev_stop (EV_A_ (W)w);
1493	}	1586	}
…		…
1498		1591
1499	void	1592	void
1500	ev_signal_start (EV_P_ struct ev_signal *w)	1593	ev_signal_start (EV_P_ struct ev_signal *w)
1501	{	1594	{
1502	#if EV_MULTIPLICITY	1595	#if EV_MULTIPLICITY
1503	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1596	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1504	#endif	1597	#endif
1505	if (ev_is_active (w))	1598	if (expect_false (ev_is_active (w)))
1506	return;	1599	return;
1507		1600
1508	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1601	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1509		1602
1510	ev_start (EV_A_ (W)w, 1);	1603	ev_start (EV_A_ (W)w, 1);
1511	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1604	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1512	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1605	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1513		1606
1514	if (!((WL)w)->next)	1607	if (!((WL)w)->next)
1515	{	1608	{
1516	#if WIN32	1609	#if _WIN32
1517	signal (w->signum, sighandler);	1610	signal (w->signum, sighandler);
1518	#else	1611	#else
1519	struct sigaction sa;	1612	struct sigaction sa;
1520	sa.sa_handler = sighandler;	1613	sa.sa_handler = sighandler;
1521	sigfillset (&sa.sa_mask);	1614	sigfillset (&sa.sa_mask);
…		…
1527		1620
1528	void	1621	void
1529	ev_signal_stop (EV_P_ struct ev_signal *w)	1622	ev_signal_stop (EV_P_ struct ev_signal *w)
1530	{	1623	{
1531	ev_clear_pending (EV_A_ (W)w);	1624	ev_clear_pending (EV_A_ (W)w);
1532	if (!ev_is_active (w))	1625	if (expect_false (!ev_is_active (w)))
1533	return;	1626	return;
1534		1627
1535	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1628	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1536	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1537		1630
…		…
1541		1634
1542	void	1635	void
1543	ev_child_start (EV_P_ struct ev_child *w)	1636	ev_child_start (EV_P_ struct ev_child *w)
1544	{	1637	{
1545	#if EV_MULTIPLICITY	1638	#if EV_MULTIPLICITY
1546	assert (("child watchers are only supported in the default loop", loop == default_loop));	1639	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1547	#endif	1640	#endif
1548	if (ev_is_active (w))	1641	if (expect_false (ev_is_active (w)))
1549	return;	1642	return;
1550		1643
1551	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1552	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1645	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1553	}	1646	}
1554		1647
1555	void	1648	void
1556	ev_child_stop (EV_P_ struct ev_child *w)	1649	ev_child_stop (EV_P_ struct ev_child *w)
1557	{	1650	{
1558	ev_clear_pending (EV_A_ (W)w);	1651	ev_clear_pending (EV_A_ (W)w);
1559	if (!ev_is_active (w))	1652	if (expect_false (!ev_is_active (w)))
1560	return;	1653	return;
1561		1654
1562	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1655	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1563	ev_stop (EV_A_ (W)w);	1656	ev_stop (EV_A_ (W)w);
1564	}	1657	}
…		…
1601	void	1694	void
1602	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1695	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1603	{	1696	{
1604	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1697	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1605		1698
1606	if (!once)	1699	if (expect_false (!once))
		1700	{
1607	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1701	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1608	else	1702	return;
1609	{	1703	}
		1704
1610	once->cb = cb;	1705	once->cb = cb;
1611	once->arg = arg;	1706	once->arg = arg;
1612		1707
1613	ev_init (&once->io, once_cb_io);	1708	ev_init (&once->io, once_cb_io);
1614	if (fd >= 0)	1709	if (fd >= 0)
1615	{	1710	{
1616	ev_io_set (&once->io, fd, events);	1711	ev_io_set (&once->io, fd, events);
1617	ev_io_start (EV_A_ &once->io);	1712	ev_io_start (EV_A_ &once->io);
1618	}	1713	}
1619		1714
1620	ev_init (&once->to, once_cb_to);	1715	ev_init (&once->to, once_cb_to);
1621	if (timeout >= 0.)	1716	if (timeout >= 0.)
1622	{	1717	{
1623	ev_timer_set (&once->to, timeout, 0.);	1718	ev_timer_set (&once->to, timeout, 0.);
1624	ev_timer_start (EV_A_ &once->to);	1719	ev_timer_start (EV_A_ &once->to);
1625	}
1626	}	1720	}
1627	}	1721	}
1628		1722
1629	#ifdef __cplusplus	1723	#ifdef __cplusplus
1630	}	1724	}

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.102 by root, Sun Nov 11 17:56:11 2007 UTC vs. Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.102 by root, Sun Nov 11 17:56:11 2007 UTC vs.
Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC