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

Comparing libev/ev.c (file contents):
Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC vs.
Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC

…		…
32	#ifdef __cplusplus	32	#ifdef __cplusplus
33	extern "C" {	33	extern "C" {
34	#endif	34	#endif
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
37	# include "config.h"	40	# include "config.h"
		41	# endif
38		42
39	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
40	# ifndef EV_USE_MONOTONIC	44	# ifndef EV_USE_MONOTONIC
41	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
42	# endif	46	# endif
43	# ifndef EV_USE_REALTIME	47	# ifndef EV_USE_REALTIME
44	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
45	# endif	49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
46	# endif	57	# endif
47		58
48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)	59	# ifndef EV_USE_SELECT
		60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
49	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
50	# endif	65	# endif
51		66
52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)	67	# ifndef EV_USE_POLL
		68	# if HAVE_POLL && HAVE_POLL_H
53	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
54	# endif	73	# endif
55		74
56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)	75	# ifndef EV_USE_EPOLL
		76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
58	# endif	81	# endif
59		82
		83	# ifndef EV_USE_KQUEUE
60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
		89	# endif
		90
		91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
		93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
62	# endif	97	# endif
63		98
64	#endif	99	#endif
65		100
66	#include <math.h>	101	#include <math.h>
…		…
75	#include <sys/types.h>	110	#include <sys/types.h>
76	#include <time.h>	111	#include <time.h>
77		112
78	#include <signal.h>	113	#include <signal.h>
79		114
80	#ifndef WIN32	115	#ifndef _WIN32
81	# include <unistd.h>	116	# include <unistd.h>
82	# include <sys/time.h>	117	# include <sys/time.h>
83	# include <sys/wait.h>	118	# include <sys/wait.h>
		119	#else
		120	# define WIN32_LEAN_AND_MEAN
		121	# include <windows.h>
		122	# ifndef EV_SELECT_IS_WINSOCKET
		123	# define EV_SELECT_IS_WINSOCKET 1
84	#endif	124	# endif
		125	#endif
		126
85	/**/	127	/**/
86		128
87	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
88	# define EV_USE_MONOTONIC 1	130	# define EV_USE_MONOTONIC 0
		131	#endif
		132
		133	#ifndef EV_USE_REALTIME
		134	# define EV_USE_REALTIME 0
89	#endif	135	#endif
90		136
91	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
92	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
93	#endif	139	#endif
94		140
95	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	142	# ifdef _WIN32
		143	# define EV_USE_POLL 0
		144	# else
		145	# define EV_USE_POLL 1
		146	# endif
97	#endif	147	#endif
98		148
99	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
100	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
101	#endif	151	#endif
102		152
103	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
104	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
105	#endif	155	#endif
106		156
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	157	#ifndef EV_USE_PORT
118	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
119	#endif	159	#endif
120		160
121	/**/	161	/**/
122		162
123	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
128	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
129	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
130	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
131	#endif	171	#endif
132		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
133	/**/	177	/**/
134		178
135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	179	#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) */	180	#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 */	181	#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 */	182	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
139		183
140	#ifdef EV_H	184	#ifdef EV_H
141	# include EV_H	185	# include EV_H
142	#else	186	#else
143	# include "ev.h"	187	# include "ev.h"
144	#endif	188	#endif
145		189
146	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
147	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
148	# define inline inline	192	# define inline static inline
149	#else	193	#else
150	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
151	# define inline static	195	# define inline static
152	#endif	196	#endif
153		197
…		…
155	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
156		200
157	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
158	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
159		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
160	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
161	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
162	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
163		210
164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
165		212
166	#ifdef WIN32	213	#ifdef _WIN32
167	# include "ev_win32.c"	214	# include "ev_win32.c"
168	#endif	215	#endif
169		216
170	/*****************************************************************************/	217	/*****************************************************************************/
171		218
…		…
220	typedef struct	267	typedef struct
221	{	268	{
222	WL head;	269	WL head;
223	unsigned char events;	270	unsigned char events;
224	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
225	} ANFD;	275	} ANFD;
226		276
227	typedef struct	277	typedef struct
228	{	278	{
229	W w;	279	W w;
…		…
240	#include "ev_vars.h"	290	#include "ev_vars.h"
241	#undef VAR	291	#undef VAR
242	};	292	};
243	#include "ev_wrap.h"	293	#include "ev_wrap.h"
244		294
245	struct ev_loop default_loop_struct;	295	static struct ev_loop default_loop_struct;
246	static struct ev_loop *default_loop;	296	struct ev_loop *ev_default_loop_ptr;
247		297
248	#else	298	#else
249		299
250	ev_tstamp ev_rt_now;	300	ev_tstamp ev_rt_now;
251	#define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
252	#include "ev_vars.h"	302	#include "ev_vars.h"
253	#undef VAR	303	#undef VAR
254		304
255	static int default_loop;	305	static int ev_default_loop_ptr;
256		306
257	#endif	307	#endif
258		308
259	/*****************************************************************************/	309	/*****************************************************************************/
260		310
…		…
293	{	343	{
294	return ev_rt_now;	344	return ev_rt_now;
295	}	345	}
296	#endif	346	#endif
297		347
298	#define array_roundsize(type,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
299		349
300	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
301	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
302	{ \	352	{ \
303	int newcnt = cur; \	353	int newcnt = cur; \
…		…
318	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
319	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
320	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
321	}	371	}
322		372
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) \	373	#define array_free(stem, idx) \
329	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
330		375
331	/*****************************************************************************/	376	/*****************************************************************************/
332		377
…		…
346	void	391	void
347	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
348	{	393	{
349	W w_ = (W)w;	394	W w_ = (W)w;
350		395
351	if (w_->pending)	396	if (expect_false (w_->pending))
352	{	397	{
353	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
354	return;	399	return;
355	}	400	}
356		401
357	w_->pending = ++pendingcnt [ABSPRI (w_)];	402	w_->pending = ++pendingcnt [ABSPRI (w_)];
358	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	403	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
359	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	404	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
360	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	405	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
361	}	406	}
362		407
363	static void	408	static void
…		…
390	fd_event (EV_A_ fd, revents);	435	fd_event (EV_A_ fd, revents);
391	}	436	}
392		437
393	/*****************************************************************************/	438	/*****************************************************************************/
394		439
395	static void	440	inline void
396	fd_reify (EV_P)	441	fd_reify (EV_P)
397	{	442	{
398	int i;	443	int i;
399		444
400	for (i = 0; i < fdchangecnt; ++i)	445	for (i = 0; i < fdchangecnt; ++i)
…		…
406	int events = 0;	451	int events = 0;
407		452
408	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	453	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
409	events \|= w->events;	454	events \|= w->events;
410		455
		456	#if EV_SELECT_IS_WINSOCKET
		457	if (events)
		458	{
		459	unsigned long argp;
		460	anfd->handle = _get_osfhandle (fd);
		461	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		462	}
		463	#endif
		464
411	anfd->reify = 0;	465	anfd->reify = 0;
412		466
413	method_modify (EV_A_ fd, anfd->events, events);	467	backend_modify (EV_A_ fd, anfd->events, events);
414	anfd->events = events;	468	anfd->events = events;
415	}	469	}
416		470
417	fdchangecnt = 0;	471	fdchangecnt = 0;
418	}	472	}
419		473
420	static void	474	static void
421	fd_change (EV_P_ int fd)	475	fd_change (EV_P_ int fd)
422	{	476	{
423	if (anfds [fd].reify)	477	if (expect_false (anfds [fd].reify))
424	return;	478	return;
425		479
426	anfds [fd].reify = 1;	480	anfds [fd].reify = 1;
427		481
428	++fdchangecnt;	482	++fdchangecnt;
429	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	483	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
430	fdchanges [fdchangecnt - 1] = fd;	484	fdchanges [fdchangecnt - 1] = fd;
431	}	485	}
432		486
433	static void	487	static void
434	fd_kill (EV_P_ int fd)	488	fd_kill (EV_P_ int fd)
…		…
440	ev_io_stop (EV_A_ w);	494	ev_io_stop (EV_A_ w);
441	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	495	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
442	}	496	}
443	}	497	}
444		498
445	static int	499	inline int
446	fd_valid (int fd)	500	fd_valid (int fd)
447	{	501	{
448	#ifdef WIN32	502	#ifdef _WIN32
449	return !!win32_get_osfhandle (fd);	503	return _get_osfhandle (fd) != -1;
450	#else	504	#else
451	return fcntl (fd, F_GETFD) != -1;	505	return fcntl (fd, F_GETFD) != -1;
452	#endif	506	#endif
453	}	507	}
454		508
…		…
476	fd_kill (EV_A_ fd);	530	fd_kill (EV_A_ fd);
477	return;	531	return;
478	}	532	}
479	}	533	}
480		534
481	/* usually called after fork if method needs to re-arm all fds from scratch */	535	/* usually called after fork if backend needs to re-arm all fds from scratch */
482	static void	536	static void
483	fd_rearm_all (EV_P)	537	fd_rearm_all (EV_P)
484	{	538	{
485	int fd;	539	int fd;
486		540
…		…
571	}	625	}
572		626
573	static void	627	static void
574	sighandler (int signum)	628	sighandler (int signum)
575	{	629	{
576	#if WIN32	630	#if _WIN32
577	signal (signum, sighandler);	631	signal (signum, sighandler);
578	#endif	632	#endif
579		633
580	signals [signum - 1].gotsig = 1;	634	signals [signum - 1].gotsig = 1;
581		635
582	if (!gotsig)	636	if (!gotsig)
583	{	637	{
584	int old_errno = errno;	638	int old_errno = errno;
585	gotsig = 1;	639	gotsig = 1;
586	#ifdef WIN32
587	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
588	#else
589	write (sigpipe [1], &signum, 1);	640	write (sigpipe [1], &signum, 1);
590	#endif
591	errno = old_errno;	641	errno = old_errno;
592	}	642	}
593	}	643	}
594		644
595	void	645	void
596	ev_feed_signal_event (EV_P_ int signum)	646	ev_feed_signal_event (EV_P_ int signum)
597	{	647	{
598	WL w;	648	WL w;
599		649
600	#if EV_MULTIPLICITY	650	#if EV_MULTIPLICITY
601	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	651	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
602	#endif	652	#endif
603		653
604	--signum;	654	--signum;
605		655
606	if (signum < 0 \|\| signum >= signalmax)	656	if (signum < 0 \|\| signum >= signalmax)
…		…
615	static void	665	static void
616	sigcb (EV_P_ struct ev_io *iow, int revents)	666	sigcb (EV_P_ struct ev_io *iow, int revents)
617	{	667	{
618	int signum;	668	int signum;
619		669
620	#ifdef WIN32
621	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
622	#else
623	read (sigpipe [0], &revents, 1);	670	read (sigpipe [0], &revents, 1);
624	#endif
625	gotsig = 0;	671	gotsig = 0;
626		672
627	for (signum = signalmax; signum--; )	673	for (signum = signalmax; signum--; )
628	if (signals [signum].gotsig)	674	if (signals [signum].gotsig)
629	ev_feed_signal_event (EV_A_ signum + 1);	675	ev_feed_signal_event (EV_A_ signum + 1);
630	}	676	}
631		677
632	static void	678	static void
		679	fd_intern (int fd)
		680	{
		681	#ifdef _WIN32
		682	int arg = 1;
		683	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		684	#else
		685	fcntl (fd, F_SETFD, FD_CLOEXEC);
		686	fcntl (fd, F_SETFL, O_NONBLOCK);
		687	#endif
		688	}
		689
		690	static void
633	siginit (EV_P)	691	siginit (EV_P)
634	{	692	{
635	#ifndef WIN32	693	fd_intern (sigpipe [0]);
636	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	694	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		695
644	ev_io_set (&sigev, sigpipe [0], EV_READ);	696	ev_io_set (&sigev, sigpipe [0], EV_READ);
645	ev_io_start (EV_A_ &sigev);	697	ev_io_start (EV_A_ &sigev);
646	ev_unref (EV_A); /* child watcher should not keep loop alive */	698	ev_unref (EV_A); /* child watcher should not keep loop alive */
647	}	699	}
648		700
649	/*****************************************************************************/	701	/*****************************************************************************/
650		702
651	static struct ev_child *childs [PID_HASHSIZE];	703	static struct ev_child *childs [PID_HASHSIZE];
652		704
653	#ifndef WIN32	705	#ifndef _WIN32
654		706
655	static struct ev_signal childev;	707	static struct ev_signal childev;
656		708
657	#ifndef WCONTINUED	709	#ifndef WCONTINUED
658	# define WCONTINUED 0	710	# define WCONTINUED 0
…		…
679	int pid, status;	731	int pid, status;
680		732
681	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	733	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
682	{	734	{
683	/* make sure we are called again until all childs have been reaped */	735	/* make sure we are called again until all childs have been reaped */
		736	/* we need to do it this way so that the callback gets called before we continue */
684	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	737	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
685		738
686	child_reap (EV_A_ sw, pid, pid, status);	739	child_reap (EV_A_ sw, pid, pid, status);
687	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	740	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
688	}	741	}
689	}	742	}
690		743
691	#endif	744	#endif
692		745
693	/*****************************************************************************/	746	/*****************************************************************************/
694		747
		748	#if EV_USE_PORT
		749	# include "ev_port.c"
		750	#endif
695	#if EV_USE_KQUEUE	751	#if EV_USE_KQUEUE
696	# include "ev_kqueue.c"	752	# include "ev_kqueue.c"
697	#endif	753	#endif
698	#if EV_USE_EPOLL	754	#if EV_USE_EPOLL
699	# include "ev_epoll.c"	755	# include "ev_epoll.c"
…		…
719		775
720	/* return true if we are running with elevated privileges and should ignore env variables */	776	/* return true if we are running with elevated privileges and should ignore env variables */
721	static int	777	static int
722	enable_secure (void)	778	enable_secure (void)
723	{	779	{
724	#ifdef WIN32	780	#ifdef _WIN32
725	return 0;	781	return 0;
726	#else	782	#else
727	return getuid () != geteuid ()	783	return getuid () != geteuid ()
728	\|\| getgid () != getegid ();	784	\|\| getgid () != getegid ();
729	#endif	785	#endif
730	}	786	}
731		787
732	int	788	unsigned int
733	ev_method (EV_P)	789	ev_supported_backends (void)
734	{	790	{
735	return method;	791	unsigned int flags = 0;
736	}
737		792
738	static void	793	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
739	loop_init (EV_P_ int methods)	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_recommended_backends (void)
740	{	804	{
741	if (!method)	805	unsigned int flags = ev_supported_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
		820	unsigned int
		821	ev_backend (EV_P)
		822	{
		823	return backend;
		824	}
		825
		826	static void
		827	loop_init (EV_P_ unsigned int flags)
		828	{
		829	if (!backend)
742	{	830	{
743	#if EV_USE_MONOTONIC	831	#if EV_USE_MONOTONIC
744	{	832	{
745	struct timespec ts;	833	struct timespec ts;
746	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	834	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
751	ev_rt_now = ev_time ();	839	ev_rt_now = ev_time ();
752	mn_now = get_clock ();	840	mn_now = get_clock ();
753	now_floor = mn_now;	841	now_floor = mn_now;
754	rtmn_diff = ev_rt_now - mn_now;	842	rtmn_diff = ev_rt_now - mn_now;
755		843
756	if (methods == EVMETHOD_AUTO)	844	if (!(flags & EVFLAG_NOENV)
757	if (!enable_secure () && getenv ("LIBEV_METHODS"))	845	&& !enable_secure ()
		846	&& getenv ("LIBEV_FLAGS"))
758	methods = atoi (getenv ("LIBEV_METHODS"));	847	flags = atoi (getenv ("LIBEV_FLAGS"));
759	else
760	methods = EVMETHOD_ANY;
761		848
762	method = 0;	849	if (!(flags & 0x0000ffffUL))
763	#if EV_USE_WIN32	850	flags \|= ev_recommended_backends ();
764	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	851
		852	backend = 0;
		853	#if EV_USE_PORT
		854	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
765	#endif	855	#endif
766	#if EV_USE_KQUEUE	856	#if EV_USE_KQUEUE
767	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	857	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
768	#endif	858	#endif
769	#if EV_USE_EPOLL	859	#if EV_USE_EPOLL
770	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	860	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
771	#endif	861	#endif
772	#if EV_USE_POLL	862	#if EV_USE_POLL
773	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	863	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
774	#endif	864	#endif
775	#if EV_USE_SELECT	865	#if EV_USE_SELECT
776	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	866	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
777	#endif	867	#endif
778		868
779	ev_init (&sigev, sigcb);	869	ev_init (&sigev, sigcb);
780	ev_set_priority (&sigev, EV_MAXPRI);	870	ev_set_priority (&sigev, EV_MAXPRI);
781	}	871	}
782	}	872	}
783		873
784	void	874	static void
785	loop_destroy (EV_P)	875	loop_destroy (EV_P)
786	{	876	{
787	int i;	877	int i;
788		878
789	#if EV_USE_WIN32	879	#if EV_USE_PORT
790	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	880	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
791	#endif	881	#endif
792	#if EV_USE_KQUEUE	882	#if EV_USE_KQUEUE
793	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	883	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
794	#endif	884	#endif
795	#if EV_USE_EPOLL	885	#if EV_USE_EPOLL
796	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	886	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
797	#endif	887	#endif
798	#if EV_USE_POLL	888	#if EV_USE_POLL
799	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	889	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
800	#endif	890	#endif
801	#if EV_USE_SELECT	891	#if EV_USE_SELECT
802	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	892	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
803	#endif	893	#endif
804		894
805	for (i = NUMPRI; i--; )	895	for (i = NUMPRI; i--; )
806	array_free (pending, [i]);	896	array_free (pending, [i]);
807		897
808	/* have to use the microsoft-never-gets-it-right macro */	898	/* have to use the microsoft-never-gets-it-right macro */
809	array_free_microshit (fdchange);	899	array_free (fdchange, EMPTY0);
810	array_free_microshit (timer);	900	array_free (timer, EMPTY0);
811	#if EV_PERIODICS	901	#if EV_PERIODICS
812	array_free_microshit (periodic);	902	array_free (periodic, EMPTY0);
813	#endif	903	#endif
814	array_free_microshit (idle);	904	array_free (idle, EMPTY0);
815	array_free_microshit (prepare);	905	array_free (prepare, EMPTY0);
816	array_free_microshit (check);	906	array_free (check, EMPTY0);
817		907
818	method = 0;	908	backend = 0;
819	}	909	}
820		910
821	static void	911	static void
822	loop_fork (EV_P)	912	loop_fork (EV_P)
823	{	913	{
		914	#if EV_USE_PORT
		915	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		916	#endif
		917	#if EV_USE_KQUEUE
		918	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		919	#endif
824	#if EV_USE_EPOLL	920	#if EV_USE_EPOLL
825	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	921	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	922	#endif
830		923
831	if (ev_is_active (&sigev))	924	if (ev_is_active (&sigev))
832	{	925	{
833	/* default loop */	926	/* default loop */
…		…
846	postfork = 0;	939	postfork = 0;
847	}	940	}
848		941
849	#if EV_MULTIPLICITY	942	#if EV_MULTIPLICITY
850	struct ev_loop *	943	struct ev_loop *
851	ev_loop_new (int methods)	944	ev_loop_new (unsigned int flags)
852	{	945	{
853	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	946	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
854		947
855	memset (loop, 0, sizeof (struct ev_loop));	948	memset (loop, 0, sizeof (struct ev_loop));
856		949
857	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
858		951
859	if (ev_method (EV_A))	952	if (ev_backend (EV_A))
860	return loop;	953	return loop;
861		954
862	return 0;	955	return 0;
863	}	956	}
864		957
…		…
877		970
878	#endif	971	#endif
879		972
880	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
881	struct ev_loop *	974	struct ev_loop *
		975	ev_default_loop_init (unsigned int flags)
882	#else	976	#else
883	int	977	int
		978	ev_default_loop (unsigned int flags)
884	#endif	979	#endif
885	ev_default_loop (int methods)
886	{	980	{
887	if (sigpipe [0] == sigpipe [1])	981	if (sigpipe [0] == sigpipe [1])
888	if (pipe (sigpipe))	982	if (pipe (sigpipe))
889	return 0;	983	return 0;
890		984
891	if (!default_loop)	985	if (!ev_default_loop_ptr)
892	{	986	{
893	#if EV_MULTIPLICITY	987	#if EV_MULTIPLICITY
894	struct ev_loop *loop = default_loop = &default_loop_struct;	988	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
895	#else	989	#else
896	default_loop = 1;	990	ev_default_loop_ptr = 1;
897	#endif	991	#endif
898		992
899	loop_init (EV_A_ methods);	993	loop_init (EV_A_ flags);
900		994
901	if (ev_method (EV_A))	995	if (ev_backend (EV_A))
902	{	996	{
903	siginit (EV_A);	997	siginit (EV_A);
904		998
905	#ifndef WIN32	999	#ifndef _WIN32
906	ev_signal_init (&childev, childcb, SIGCHLD);	1000	ev_signal_init (&childev, childcb, SIGCHLD);
907	ev_set_priority (&childev, EV_MAXPRI);	1001	ev_set_priority (&childev, EV_MAXPRI);
908	ev_signal_start (EV_A_ &childev);	1002	ev_signal_start (EV_A_ &childev);
909	ev_unref (EV_A); /* child watcher should not keep loop alive */	1003	ev_unref (EV_A); /* child watcher should not keep loop alive */
910	#endif	1004	#endif
911	}	1005	}
912	else	1006	else
913	default_loop = 0;	1007	ev_default_loop_ptr = 0;
914	}	1008	}
915		1009
916	return default_loop;	1010	return ev_default_loop_ptr;
917	}	1011	}
918		1012
919	void	1013	void
920	ev_default_destroy (void)	1014	ev_default_destroy (void)
921	{	1015	{
922	#if EV_MULTIPLICITY	1016	#if EV_MULTIPLICITY
923	struct ev_loop *loop = default_loop;	1017	struct ev_loop *loop = ev_default_loop_ptr;
924	#endif	1018	#endif
925		1019
926	#ifndef WIN32	1020	#ifndef _WIN32
927	ev_ref (EV_A); /* child watcher */	1021	ev_ref (EV_A); /* child watcher */
928	ev_signal_stop (EV_A_ &childev);	1022	ev_signal_stop (EV_A_ &childev);
929	#endif	1023	#endif
930		1024
931	ev_ref (EV_A); /* signal watcher */	1025	ev_ref (EV_A); /* signal watcher */
…		…
939		1033
940	void	1034	void
941	ev_default_fork (void)	1035	ev_default_fork (void)
942	{	1036	{
943	#if EV_MULTIPLICITY	1037	#if EV_MULTIPLICITY
944	struct ev_loop *loop = default_loop;	1038	struct ev_loop *loop = ev_default_loop_ptr;
945	#endif	1039	#endif
946		1040
947	if (method)	1041	if (backend)
948	postfork = 1;	1042	postfork = 1;
949	}	1043	}
950		1044
951	/*****************************************************************************/	1045	/*****************************************************************************/
952		1046
…		…
960	return 1;	1054	return 1;
961		1055
962	return 0;	1056	return 0;
963	}	1057	}
964		1058
965	static void	1059	inline void
966	call_pending (EV_P)	1060	call_pending (EV_P)
967	{	1061	{
968	int pri;	1062	int pri;
969		1063
970	for (pri = NUMPRI; pri--; )	1064	for (pri = NUMPRI; pri--; )
971	while (pendingcnt [pri])	1065	while (pendingcnt [pri])
972	{	1066	{
973	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1067	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
974		1068
975	if (p->w)	1069	if (expect_true (p->w))
976	{	1070	{
977	p->w->pending = 0;	1071	p->w->pending = 0;
978	EV_CB_INVOKE (p->w, p->events);	1072	EV_CB_INVOKE (p->w, p->events);
979	}	1073	}
980	}	1074	}
981	}	1075	}
982		1076
983	static void	1077	inline void
984	timers_reify (EV_P)	1078	timers_reify (EV_P)
985	{	1079	{
986	while (timercnt && ((WT)timers [0])->at <= mn_now)	1080	while (timercnt && ((WT)timers [0])->at <= mn_now)
987	{	1081	{
988	struct ev_timer *w = timers [0];	1082	struct ev_timer *w = timers [0];
…		…
1006	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1100	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1007	}	1101	}
1008	}	1102	}
1009		1103
1010	#if EV_PERIODICS	1104	#if EV_PERIODICS
1011	static void	1105	inline void
1012	periodics_reify (EV_P)	1106	periodics_reify (EV_P)
1013	{	1107	{
1014	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1108	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1015	{	1109	{
1016	struct ev_periodic *w = periodics [0];	1110	struct ev_periodic *w = periodics [0];
…		…
1018	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1112	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1019		1113
1020	/* first reschedule or stop timer */	1114	/* first reschedule or stop timer */
1021	if (w->reschedule_cb)	1115	if (w->reschedule_cb)
1022	{	1116	{
1023	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1117	((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));	1118	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1026	downheap ((WT *)periodics, periodiccnt, 0);	1119	downheap ((WT *)periodics, periodiccnt, 0);
1027	}	1120	}
1028	else if (w->interval)	1121	else if (w->interval)
1029	{	1122	{
…		…
1076	ev_rt_now = ev_time ();	1169	ev_rt_now = ev_time ();
1077	return 1;	1170	return 1;
1078	}	1171	}
1079	}	1172	}
1080		1173
1081	static void	1174	inline void
1082	time_update (EV_P)	1175	time_update (EV_P)
1083	{	1176	{
1084	int i;	1177	int i;
1085		1178
1086	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
…		…
1147	ev_loop (EV_P_ int flags)	1240	ev_loop (EV_P_ int flags)
1148	{	1241	{
1149	double block;	1242	double block;
1150	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1243	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1151		1244
1152	do	1245	while (activecnt)
1153	{	1246	{
1154	/* queue check watchers (and execute them) */	1247	/* queue check watchers (and execute them) */
1155	if (expect_false (preparecnt))	1248	if (expect_false (preparecnt))
1156	{	1249	{
1157	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1250	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1185	{	1278	{
1186	block = MAX_BLOCKTIME;	1279	block = MAX_BLOCKTIME;
1187		1280
1188	if (timercnt)	1281	if (timercnt)
1189	{	1282	{
1190	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1283	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1191	if (block > to) block = to;	1284	if (block > to) block = to;
1192	}	1285	}
1193		1286
1194	#if EV_PERIODICS	1287	#if EV_PERIODICS
1195	if (periodiccnt)	1288	if (periodiccnt)
1196	{	1289	{
1197	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1290	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1198	if (block > to) block = to;	1291	if (block > to) block = to;
1199	}	1292	}
1200	#endif	1293	#endif
1201		1294
1202	if (block < 0.) block = 0.;	1295	if (expect_false (block < 0.)) block = 0.;
1203	}	1296	}
1204		1297
1205	method_poll (EV_A_ block);	1298	backend_poll (EV_A_ block);
1206		1299
1207	/* update ev_rt_now, do magic */	1300	/* update ev_rt_now, do magic */
1208	time_update (EV_A);	1301	time_update (EV_A);
1209		1302
1210	/* queue pending timers and reschedule them */	1303	/* queue pending timers and reschedule them */
…		…
1216	/* queue idle watchers unless io or timers are pending */	1309	/* queue idle watchers unless io or timers are pending */
1217	if (idlecnt && !any_pending (EV_A))	1310	if (idlecnt && !any_pending (EV_A))
1218	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1311	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1219		1312
1220	/* queue check watchers, to be executed first */	1313	/* queue check watchers, to be executed first */
1221	if (checkcnt)	1314	if (expect_false (checkcnt))
1222	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1315	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1223		1316
1224	call_pending (EV_A);	1317	call_pending (EV_A);
		1318
		1319	if (expect_false (loop_done))
		1320	break;
1225	}	1321	}
1226	while (activecnt && !loop_done);
1227		1322
1228	if (loop_done != 2)	1323	if (loop_done != 2)
1229	loop_done = 0;	1324	loop_done = 0;
1230	}	1325	}
1231		1326
…		…
1291	void	1386	void
1292	ev_io_start (EV_P_ struct ev_io *w)	1387	ev_io_start (EV_P_ struct ev_io *w)
1293	{	1388	{
1294	int fd = w->fd;	1389	int fd = w->fd;
1295		1390
1296	if (ev_is_active (w))	1391	if (expect_false (ev_is_active (w)))
1297	return;	1392	return;
1298		1393
1299	assert (("ev_io_start called with negative fd", fd >= 0));	1394	assert (("ev_io_start called with negative fd", fd >= 0));
1300		1395
1301	ev_start (EV_A_ (W)w, 1);	1396	ev_start (EV_A_ (W)w, 1);
…		…
1307		1402
1308	void	1403	void
1309	ev_io_stop (EV_P_ struct ev_io *w)	1404	ev_io_stop (EV_P_ struct ev_io *w)
1310	{	1405	{
1311	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1312	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1313	return;	1408	return;
1314		1409
1315	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1410	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1316		1411
1317	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1412	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1321	}	1416	}
1322		1417
1323	void	1418	void
1324	ev_timer_start (EV_P_ struct ev_timer *w)	1419	ev_timer_start (EV_P_ struct ev_timer *w)
1325	{	1420	{
1326	if (ev_is_active (w))	1421	if (expect_false (ev_is_active (w)))
1327	return;	1422	return;
1328		1423
1329	((WT)w)->at += mn_now;	1424	((WT)w)->at += mn_now;
1330		1425
1331	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1426	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1332		1427
1333	ev_start (EV_A_ (W)w, ++timercnt);	1428	ev_start (EV_A_ (W)w, ++timercnt);
1334	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1429	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1335	timers [timercnt - 1] = w;	1430	timers [timercnt - 1] = w;
1336	upheap ((WT *)timers, timercnt - 1);	1431	upheap ((WT *)timers, timercnt - 1);
1337		1432
1338	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1433	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1339	}	1434	}
1340		1435
1341	void	1436	void
1342	ev_timer_stop (EV_P_ struct ev_timer *w)	1437	ev_timer_stop (EV_P_ struct ev_timer *w)
1343	{	1438	{
1344	ev_clear_pending (EV_A_ (W)w);	1439	ev_clear_pending (EV_A_ (W)w);
1345	if (!ev_is_active (w))	1440	if (expect_false (!ev_is_active (w)))
1346	return;	1441	return;
1347		1442
1348	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1443	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1349		1444
1350	if (((W)w)->active < timercnt--)	1445	if (expect_true (((W)w)->active < timercnt--))
1351	{	1446	{
1352	timers [((W)w)->active - 1] = timers [timercnt];	1447	timers [((W)w)->active - 1] = timers [timercnt];
1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1448	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1354	}	1449	}
1355		1450
…		…
1370	}	1465	}
1371	else	1466	else
1372	ev_timer_stop (EV_A_ w);	1467	ev_timer_stop (EV_A_ w);
1373	}	1468	}
1374	else if (w->repeat)	1469	else if (w->repeat)
		1470	{
		1471	w->at = w->repeat;
1375	ev_timer_start (EV_A_ w);	1472	ev_timer_start (EV_A_ w);
		1473	}
1376	}	1474	}
1377		1475
1378	#if EV_PERIODICS	1476	#if EV_PERIODICS
1379	void	1477	void
1380	ev_periodic_start (EV_P_ struct ev_periodic *w)	1478	ev_periodic_start (EV_P_ struct ev_periodic *w)
1381	{	1479	{
1382	if (ev_is_active (w))	1480	if (expect_false (ev_is_active (w)))
1383	return;	1481	return;
1384		1482
1385	if (w->reschedule_cb)	1483	if (w->reschedule_cb)
1386	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1484	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1387	else if (w->interval)	1485	else if (w->interval)
…		…
1390	/* this formula differs from the one in periodic_reify because we do not always round up */	1488	/* 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;	1489	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1392	}	1490	}
1393		1491
1394	ev_start (EV_A_ (W)w, ++periodiccnt);	1492	ev_start (EV_A_ (W)w, ++periodiccnt);
1395	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1493	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1396	periodics [periodiccnt - 1] = w;	1494	periodics [periodiccnt - 1] = w;
1397	upheap ((WT *)periodics, periodiccnt - 1);	1495	upheap ((WT *)periodics, periodiccnt - 1);
1398		1496
1399	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1497	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1400	}	1498	}
1401		1499
1402	void	1500	void
1403	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1501	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1404	{	1502	{
1405	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1406	if (!ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1407	return;	1505	return;
1408		1506
1409	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1507	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1410		1508
1411	if (((W)w)->active < periodiccnt--)	1509	if (expect_true (((W)w)->active < periodiccnt--))
1412	{	1510	{
1413	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1511	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1414	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1512	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1415	}	1513	}
1416		1514
…		…
1427	#endif	1525	#endif
1428		1526
1429	void	1527	void
1430	ev_idle_start (EV_P_ struct ev_idle *w)	1528	ev_idle_start (EV_P_ struct ev_idle *w)
1431	{	1529	{
1432	if (ev_is_active (w))	1530	if (expect_false (ev_is_active (w)))
1433	return;	1531	return;
1434		1532
1435	ev_start (EV_A_ (W)w, ++idlecnt);	1533	ev_start (EV_A_ (W)w, ++idlecnt);
1436	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1534	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1437	idles [idlecnt - 1] = w;	1535	idles [idlecnt - 1] = w;
1438	}	1536	}
1439		1537
1440	void	1538	void
1441	ev_idle_stop (EV_P_ struct ev_idle *w)	1539	ev_idle_stop (EV_P_ struct ev_idle *w)
1442	{	1540	{
1443	ev_clear_pending (EV_A_ (W)w);	1541	ev_clear_pending (EV_A_ (W)w);
1444	if (ev_is_active (w))	1542	if (expect_false (!ev_is_active (w)))
1445	return;	1543	return;
1446		1544
1447	idles [((W)w)->active - 1] = idles [--idlecnt];	1545	idles [((W)w)->active - 1] = idles [--idlecnt];
1448	ev_stop (EV_A_ (W)w);	1546	ev_stop (EV_A_ (W)w);
1449	}	1547	}
1450		1548
1451	void	1549	void
1452	ev_prepare_start (EV_P_ struct ev_prepare *w)	1550	ev_prepare_start (EV_P_ struct ev_prepare *w)
1453	{	1551	{
1454	if (ev_is_active (w))	1552	if (expect_false (ev_is_active (w)))
1455	return;	1553	return;
1456		1554
1457	ev_start (EV_A_ (W)w, ++preparecnt);	1555	ev_start (EV_A_ (W)w, ++preparecnt);
1458	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1556	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1459	prepares [preparecnt - 1] = w;	1557	prepares [preparecnt - 1] = w;
1460	}	1558	}
1461		1559
1462	void	1560	void
1463	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1561	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1464	{	1562	{
1465	ev_clear_pending (EV_A_ (W)w);	1563	ev_clear_pending (EV_A_ (W)w);
1466	if (ev_is_active (w))	1564	if (expect_false (!ev_is_active (w)))
1467	return;	1565	return;
1468		1566
1469	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1567	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1470	ev_stop (EV_A_ (W)w);	1568	ev_stop (EV_A_ (W)w);
1471	}	1569	}
1472		1570
1473	void	1571	void
1474	ev_check_start (EV_P_ struct ev_check *w)	1572	ev_check_start (EV_P_ struct ev_check *w)
1475	{	1573	{
1476	if (ev_is_active (w))	1574	if (expect_false (ev_is_active (w)))
1477	return;	1575	return;
1478		1576
1479	ev_start (EV_A_ (W)w, ++checkcnt);	1577	ev_start (EV_A_ (W)w, ++checkcnt);
1480	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1578	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1481	checks [checkcnt - 1] = w;	1579	checks [checkcnt - 1] = w;
1482	}	1580	}
1483		1581
1484	void	1582	void
1485	ev_check_stop (EV_P_ struct ev_check *w)	1583	ev_check_stop (EV_P_ struct ev_check *w)
1486	{	1584	{
1487	ev_clear_pending (EV_A_ (W)w);	1585	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1586	if (expect_false (!ev_is_active (w)))
1489	return;	1587	return;
1490		1588
1491	checks [((W)w)->active - 1] = checks [--checkcnt];	1589	checks [((W)w)->active - 1] = checks [--checkcnt];
1492	ev_stop (EV_A_ (W)w);	1590	ev_stop (EV_A_ (W)w);
1493	}	1591	}
…		…
1498		1596
1499	void	1597	void
1500	ev_signal_start (EV_P_ struct ev_signal *w)	1598	ev_signal_start (EV_P_ struct ev_signal *w)
1501	{	1599	{
1502	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1503	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1601	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1504	#endif	1602	#endif
1505	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1506	return;	1604	return;
1507		1605
1508	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1606	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1509		1607
1510	ev_start (EV_A_ (W)w, 1);	1608	ev_start (EV_A_ (W)w, 1);
1511	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1609	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1512	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1610	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1513		1611
1514	if (!((WL)w)->next)	1612	if (!((WL)w)->next)
1515	{	1613	{
1516	#if WIN32	1614	#if _WIN32
1517	signal (w->signum, sighandler);	1615	signal (w->signum, sighandler);
1518	#else	1616	#else
1519	struct sigaction sa;	1617	struct sigaction sa;
1520	sa.sa_handler = sighandler;	1618	sa.sa_handler = sighandler;
1521	sigfillset (&sa.sa_mask);	1619	sigfillset (&sa.sa_mask);
…		…
1527		1625
1528	void	1626	void
1529	ev_signal_stop (EV_P_ struct ev_signal *w)	1627	ev_signal_stop (EV_P_ struct ev_signal *w)
1530	{	1628	{
1531	ev_clear_pending (EV_A_ (W)w);	1629	ev_clear_pending (EV_A_ (W)w);
1532	if (!ev_is_active (w))	1630	if (expect_false (!ev_is_active (w)))
1533	return;	1631	return;
1534		1632
1535	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1633	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1536	ev_stop (EV_A_ (W)w);	1634	ev_stop (EV_A_ (W)w);
1537		1635
…		…
1541		1639
1542	void	1640	void
1543	ev_child_start (EV_P_ struct ev_child *w)	1641	ev_child_start (EV_P_ struct ev_child *w)
1544	{	1642	{
1545	#if EV_MULTIPLICITY	1643	#if EV_MULTIPLICITY
1546	assert (("child watchers are only supported in the default loop", loop == default_loop));	1644	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1547	#endif	1645	#endif
1548	if (ev_is_active (w))	1646	if (expect_false (ev_is_active (w)))
1549	return;	1647	return;
1550		1648
1551	ev_start (EV_A_ (W)w, 1);	1649	ev_start (EV_A_ (W)w, 1);
1552	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1650	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1553	}	1651	}
1554		1652
1555	void	1653	void
1556	ev_child_stop (EV_P_ struct ev_child *w)	1654	ev_child_stop (EV_P_ struct ev_child *w)
1557	{	1655	{
1558	ev_clear_pending (EV_A_ (W)w);	1656	ev_clear_pending (EV_A_ (W)w);
1559	if (!ev_is_active (w))	1657	if (expect_false (!ev_is_active (w)))
1560	return;	1658	return;
1561		1659
1562	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1660	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1563	ev_stop (EV_A_ (W)w);	1661	ev_stop (EV_A_ (W)w);
1564	}	1662	}
…		…
1601	void	1699	void
1602	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1700	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1603	{	1701	{
1604	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1702	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1605		1703
1606	if (!once)	1704	if (expect_false (!once))
		1705	{
1607	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1706	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1608	else	1707	return;
1609	{	1708	}
		1709
1610	once->cb = cb;	1710	once->cb = cb;
1611	once->arg = arg;	1711	once->arg = arg;
1612		1712
1613	ev_init (&once->io, once_cb_io);	1713	ev_init (&once->io, once_cb_io);
1614	if (fd >= 0)	1714	if (fd >= 0)
1615	{	1715	{
1616	ev_io_set (&once->io, fd, events);	1716	ev_io_set (&once->io, fd, events);
1617	ev_io_start (EV_A_ &once->io);	1717	ev_io_start (EV_A_ &once->io);
1618	}	1718	}
1619		1719
1620	ev_init (&once->to, once_cb_to);	1720	ev_init (&once->to, once_cb_to);
1621	if (timeout >= 0.)	1721	if (timeout >= 0.)
1622	{	1722	{
1623	ev_timer_set (&once->to, timeout, 0.);	1723	ev_timer_set (&once->to, timeout, 0.);
1624	ev_timer_start (EV_A_ &once->to);	1724	ev_timer_start (EV_A_ &once->to);
1625	}
1626	}	1725	}
1627	}	1726	}
1628		1727
1629	#ifdef __cplusplus	1728	#ifdef __cplusplus
1630	}	1729	}

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Comparing libev/ev.c (file contents): Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC vs. Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC vs.
Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC