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

Comparing libev/ev.c (file contents):
Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

…		…
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
37	# include "config.h"	37	# include "config.h"
38		38
39	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
40	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
41	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
42	# endif	53	# endif
43		54
		55	# ifndef EV_USE_SELECT
44	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
45	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
46	# endif	61	# endif
47		62
		63	# ifndef EV_USE_POLL
48	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
49	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
50	# endif	69	# endif
51		70
		71	# ifndef EV_USE_EPOLL
52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
53	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
54	# endif	77	# endif
55		78
		79	# ifndef EV_USE_KQUEUE
56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
57	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
58	# endif	93	# endif
59		94
60	#endif	95	#endif
61		96
62	#include <math.h>	97	#include <math.h>
…		…
71	#include <sys/types.h>	106	#include <sys/types.h>
72	#include <time.h>	107	#include <time.h>
73		108
74	#include <signal.h>	109	#include <signal.h>
75		110
76	#ifndef WIN32	111	#ifndef _WIN32
77	# include <unistd.h>	112	# include <unistd.h>
78	# include <sys/time.h>	113	# include <sys/time.h>
79	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
80	#endif	120	# endif
		121	#endif
		122
81	/**/	123	/**/
82		124
83	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
84	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
85	#endif	131	#endif
86		132
87	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
88	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
89	#endif	135	#endif
90		136
91	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
92	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
93	#endif	143	#endif
94		144
95	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
96	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
97	#endif	147	#endif
98		148
99	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
100	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
101	#endif	151	#endif
102		152
103	#ifndef EV_USE_WIN32
104	# ifdef WIN32
105	# define EV_USE_WIN32 0 /* it does not exist, use select */
106	# undef EV_USE_SELECT
107	# define EV_USE_SELECT 1
108	# else
109	# define EV_USE_WIN32 0
110	# endif
111	#endif
112
113	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
114	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
115	#endif	155	#endif
116		156
117	/**/	157	/**/
118		158
119	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
124	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
125	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
126	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
127	#endif	167	#endif
128		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
129	/**/	173	/**/
130		174
131	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	175	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
132	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	176	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
133	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	177	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
134	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	178	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
135		179
136	#ifdef EV_H	180	#ifdef EV_H
137	# include EV_H	181	# include EV_H
138	#else	182	#else
139	# include "ev.h"	183	# include "ev.h"
140	#endif	184	#endif
141		185
142	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
143	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
144	# define inline inline	188	# define inline static inline
145	#else	189	#else
146	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
147	# define inline static	191	# define inline static
148	#endif	192	#endif
149		193
…		…
151	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
152		196
153	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
154	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
155		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
156	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
157	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
158	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
159		206
160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
161		208
		209	#ifdef _WIN32
162	#include "ev_win32.c"	210	# include "ev_win32.c"
		211	#endif
163		212
164	/*****************************************************************************/	213	/*****************************************************************************/
165		214
166	static void (syserr_cb)(const char msg);	215	static void (syserr_cb)(const char msg);
167		216
…		…
214	typedef struct	263	typedef struct
215	{	264	{
216	WL head;	265	WL head;
217	unsigned char events;	266	unsigned char events;
218	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
219	} ANFD;	271	} ANFD;
220		272
221	typedef struct	273	typedef struct
222	{	274	{
223	W w;	275	W w;
…		…
227	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
228		280
229	struct ev_loop	281	struct ev_loop
230	{	282	{
231	ev_tstamp ev_rt_now;	283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
232	#define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
233	#include "ev_vars.h"	286	#include "ev_vars.h"
234	#undef VAR	287	#undef VAR
235	};	288	};
236	#include "ev_wrap.h"	289	#include "ev_wrap.h"
237		290
238	struct ev_loop default_loop_struct;	291	static struct ev_loop default_loop_struct;
239	static struct ev_loop *default_loop;	292	struct ev_loop *ev_default_loop_ptr;
240		293
241	#else	294	#else
242		295
243	ev_tstamp ev_rt_now;	296	ev_tstamp ev_rt_now;
244	#define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
245	#include "ev_vars.h"	298	#include "ev_vars.h"
246	#undef VAR	299	#undef VAR
247		300
248	static int default_loop;	301	static int ev_default_loop_ptr;
249		302
250	#endif	303	#endif
251		304
252	/*****************************************************************************/	305	/*****************************************************************************/
253		306
…		…
286	{	339	{
287	return ev_rt_now;	340	return ev_rt_now;
288	}	341	}
289	#endif	342	#endif
290		343
291	#define array_roundsize(type,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
292		345
293	#define array_needsize(type,base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
294	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
295	{ \	348	{ \
296	int newcnt = cur; \	349	int newcnt = cur; \
…		…
311	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
312	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
313	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
314	}	367	}
315		368
316	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
317	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
318	#define array_free_microshit(stem) \
319	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
320
321	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
322	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
323		371
324	/*****************************************************************************/	372	/*****************************************************************************/
325		373
…		…
339	void	387	void
340	ev_feed_event (EV_P_ void *w, int revents)	388	ev_feed_event (EV_P_ void *w, int revents)
341	{	389	{
342	W w_ = (W)w;	390	W w_ = (W)w;
343		391
344	if (w_->pending)	392	if (expect_false (w_->pending))
345	{	393	{
346	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
347	return;	395	return;
348	}	396	}
349		397
350	w_->pending = ++pendingcnt [ABSPRI (w_)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
351	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
354	}	402	}
355		403
356	static void	404	static void
…		…
383	fd_event (EV_A_ fd, revents);	431	fd_event (EV_A_ fd, revents);
384	}	432	}
385		433
386	/*****************************************************************************/	434	/*****************************************************************************/
387		435
388	static void	436	inline void
389	fd_reify (EV_P)	437	fd_reify (EV_P)
390	{	438	{
391	int i;	439	int i;
392		440
393	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
399	int events = 0;	447	int events = 0;
400		448
401	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	449	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
402	events \|= w->events;	450	events \|= w->events;
403		451
		452	#if EV_SELECT_IS_WINSOCKET
		453	if (events)
		454	{
		455	unsigned long argp;
		456	anfd->handle = _get_osfhandle (fd);
		457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		458	}
		459	#endif
		460
404	anfd->reify = 0;	461	anfd->reify = 0;
405		462
406	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
407	anfd->events = events;	464	anfd->events = events;
408	}	465	}
409		466
410	fdchangecnt = 0;	467	fdchangecnt = 0;
411	}	468	}
412		469
413	static void	470	static void
414	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
415	{	472	{
416	if (anfds [fd].reify)	473	if (expect_false (anfds [fd].reify))
417	return;	474	return;
418		475
419	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
420		477
421	++fdchangecnt;	478	++fdchangecnt;
422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
423	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
424	}	481	}
425		482
426	static void	483	static void
427	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
433	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
434	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	491	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
435	}	492	}
436	}	493	}
437		494
438	static int	495	inline int
439	fd_valid (int fd)	496	fd_valid (int fd)
440	{	497	{
441	#ifdef WIN32	498	#ifdef _WIN32
442	return !!win32_get_osfhandle (fd);	499	return _get_osfhandle (fd) != -1;
443	#else	500	#else
444	return fcntl (fd, F_GETFD) != -1;	501	return fcntl (fd, F_GETFD) != -1;
445	#endif	502	#endif
446	}	503	}
447		504
…		…
469	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
470	return;	527	return;
471	}	528	}
472	}	529	}
473		530
474	/* 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 */
475	static void	532	static void
476	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
477	{	534	{
478	int fd;	535	int fd;
479		536
…		…
528	heap [k] = w;	585	heap [k] = w;
529	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
530	}	587	}
531		588
532	inline void	589	inline void
533	adjustheap (WT *heap, int N, int k, ev_tstamp at)	590	adjustheap (WT *heap, int N, int k)
534	{	591	{
535	ev_tstamp old_at = heap [k]->at;	592	upheap (heap, k);
536	heap [k]->at = at;
537
538	if (old_at < at)
539	downheap (heap, N, k);	593	downheap (heap, N, k);
540	else
541	upheap (heap, k);
542	}	594	}
543		595
544	/*****************************************************************************/	596	/*****************************************************************************/
545		597
546	typedef struct	598	typedef struct
…		…
569	}	621	}
570		622
571	static void	623	static void
572	sighandler (int signum)	624	sighandler (int signum)
573	{	625	{
574	#if WIN32	626	#if _WIN32
575	signal (signum, sighandler);	627	signal (signum, sighandler);
576	#endif	628	#endif
577		629
578	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
579		631
580	if (!gotsig)	632	if (!gotsig)
581	{	633	{
582	int old_errno = errno;	634	int old_errno = errno;
583	gotsig = 1;	635	gotsig = 1;
584	#ifdef WIN32
585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
586	#else
587	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
588	#endif
589	errno = old_errno;	637	errno = old_errno;
590	}	638	}
591	}	639	}
592		640
593	void	641	void
594	ev_feed_signal_event (EV_P_ int signum)	642	ev_feed_signal_event (EV_P_ int signum)
595	{	643	{
596	WL w;	644	WL w;
597		645
598	#if EV_MULTIPLICITY	646	#if EV_MULTIPLICITY
599	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	647	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
600	#endif	648	#endif
601		649
602	--signum;	650	--signum;
603		651
604	if (signum < 0 \|\| signum >= signalmax)	652	if (signum < 0 \|\| signum >= signalmax)
…		…
613	static void	661	static void
614	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
615	{	663	{
616	int signum;	664	int signum;
617		665
618	#ifdef WIN32
619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
620	#else
621	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
622	#endif
623	gotsig = 0;	667	gotsig = 0;
624		668
625	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
626	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
627	ev_feed_signal_event (EV_A_ signum + 1);	671	ev_feed_signal_event (EV_A_ signum + 1);
628	}	672	}
629		673
630	static void	674	static void
		675	fd_intern (int fd)
		676	{
		677	#ifdef _WIN32
		678	int arg = 1;
		679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		680	#else
		681	fcntl (fd, F_SETFD, FD_CLOEXEC);
		682	fcntl (fd, F_SETFL, O_NONBLOCK);
		683	#endif
		684	}
		685
		686	static void
631	siginit (EV_P)	687	siginit (EV_P)
632	{	688	{
633	#ifndef WIN32	689	fd_intern (sigpipe [0]);
634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
636
637	/* rather than sort out wether we really need nb, set it */
638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
640	#endif
641		691
642	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
643	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
644	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
645	}	695	}
646		696
647	/*****************************************************************************/	697	/*****************************************************************************/
648		698
649	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
650		700
651	#ifndef WIN32	701	#ifndef _WIN32
652		702
653	static struct ev_signal childev;	703	static struct ev_signal childev;
654		704
655	#ifndef WCONTINUED	705	#ifndef WCONTINUED
656	# define WCONTINUED 0	706	# define WCONTINUED 0
…		…
677	int pid, status;	727	int pid, status;
678		728
679	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
680	{	730	{
681	/* make sure we are called again until all childs have been reaped */	731	/* make sure we are called again until all childs have been reaped */
		732	/* we need to do it this way so that the callback gets called before we continue */
682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	733	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
683		734
684	child_reap (EV_A_ sw, pid, pid, status);	735	child_reap (EV_A_ sw, pid, pid, status);
685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	736	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
686	}	737	}
687	}	738	}
688		739
689	#endif	740	#endif
690		741
691	/*****************************************************************************/	742	/*****************************************************************************/
692		743
		744	#if EV_USE_PORT
		745	# include "ev_port.c"
		746	#endif
693	#if EV_USE_KQUEUE	747	#if EV_USE_KQUEUE
694	# include "ev_kqueue.c"	748	# include "ev_kqueue.c"
695	#endif	749	#endif
696	#if EV_USE_EPOLL	750	#if EV_USE_EPOLL
697	# include "ev_epoll.c"	751	# include "ev_epoll.c"
…		…
717		771
718	/* return true if we are running with elevated privileges and should ignore env variables */	772	/* return true if we are running with elevated privileges and should ignore env variables */
719	static int	773	static int
720	enable_secure (void)	774	enable_secure (void)
721	{	775	{
722	#ifdef WIN32	776	#ifdef _WIN32
723	return 0;	777	return 0;
724	#else	778	#else
725	return getuid () != geteuid ()	779	return getuid () != geteuid ()
726	\|\| getgid () != getegid ();	780	\|\| getgid () != getegid ();
727	#endif	781	#endif
728	}	782	}
729		783
730	int	784	unsigned int
731	ev_method (EV_P)	785	ev_supported_backends (void)
732	{	786	{
733	return method;	787	unsigned int flags = 0;
734	}
735		788
736	static void	789	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
737	loop_init (EV_P_ int methods)	790	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		791	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		792	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		793	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		794
		795	return flags;
		796	}
		797
		798	unsigned int
		799	ev_recommended_backends (void)
738	{	800	{
739	if (!method)	801	unsigned int flags = ev_supported_backends ();
		802
		803	#ifndef __NetBSD__
		804	/* kqueue is borked on everything but netbsd apparently */
		805	/* it usually doesn't work correctly on anything but sockets and pipes */
		806	flags &= ~EVBACKEND_KQUEUE;
		807	#endif
		808	#ifdef __APPLE__
		809	// flags &= ~EVBACKEND_KQUEUE; for documentation
		810	flags &= ~EVBACKEND_POLL;
		811	#endif
		812
		813	return flags;
		814	}
		815
		816	unsigned int
		817	ev_backend (EV_P)
		818	{
		819	return backend;
		820	}
		821
		822	static void
		823	loop_init (EV_P_ unsigned int flags)
		824	{
		825	if (!backend)
740	{	826	{
741	#if EV_USE_MONOTONIC	827	#if EV_USE_MONOTONIC
742	{	828	{
743	struct timespec ts;	829	struct timespec ts;
744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	830	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
749	ev_rt_now = ev_time ();	835	ev_rt_now = ev_time ();
750	mn_now = get_clock ();	836	mn_now = get_clock ();
751	now_floor = mn_now;	837	now_floor = mn_now;
752	rtmn_diff = ev_rt_now - mn_now;	838	rtmn_diff = ev_rt_now - mn_now;
753		839
754	if (methods == EVMETHOD_AUTO)	840	if (!(flags & EVFLAG_NOENV)
755	if (!enable_secure () && getenv ("LIBEV_METHODS"))	841	&& !enable_secure ()
		842	&& getenv ("LIBEV_FLAGS"))
756	methods = atoi (getenv ("LIBEV_METHODS"));	843	flags = atoi (getenv ("LIBEV_FLAGS"));
757	else
758	methods = EVMETHOD_ANY;
759		844
760	method = 0;	845	if (!(flags & 0x0000ffffUL))
761	#if EV_USE_WIN32	846	flags \|= ev_recommended_backends ();
762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	847
		848	backend = 0;
		849	#if EV_USE_PORT
		850	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
763	#endif	851	#endif
764	#if EV_USE_KQUEUE	852	#if EV_USE_KQUEUE
765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	853	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
766	#endif	854	#endif
767	#if EV_USE_EPOLL	855	#if EV_USE_EPOLL
768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	856	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
769	#endif	857	#endif
770	#if EV_USE_POLL	858	#if EV_USE_POLL
771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	859	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
772	#endif	860	#endif
773	#if EV_USE_SELECT	861	#if EV_USE_SELECT
774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	862	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
775	#endif	863	#endif
776		864
777	ev_init (&sigev, sigcb);	865	ev_init (&sigev, sigcb);
778	ev_set_priority (&sigev, EV_MAXPRI);	866	ev_set_priority (&sigev, EV_MAXPRI);
779	}	867	}
780	}	868	}
781		869
782	void	870	static void
783	loop_destroy (EV_P)	871	loop_destroy (EV_P)
784	{	872	{
785	int i;	873	int i;
786		874
787	#if EV_USE_WIN32	875	#if EV_USE_PORT
788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	876	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
789	#endif	877	#endif
790	#if EV_USE_KQUEUE	878	#if EV_USE_KQUEUE
791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	879	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
792	#endif	880	#endif
793	#if EV_USE_EPOLL	881	#if EV_USE_EPOLL
794	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	882	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
795	#endif	883	#endif
796	#if EV_USE_POLL	884	#if EV_USE_POLL
797	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	885	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
798	#endif	886	#endif
799	#if EV_USE_SELECT	887	#if EV_USE_SELECT
800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	888	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
801	#endif	889	#endif
802		890
803	for (i = NUMPRI; i--; )	891	for (i = NUMPRI; i--; )
804	array_free (pending, [i]);	892	array_free (pending, [i]);
805		893
806	/* have to use the microsoft-never-gets-it-right macro */	894	/* have to use the microsoft-never-gets-it-right macro */
807	array_free_microshit (fdchange);	895	array_free (fdchange, EMPTY0);
808	array_free_microshit (timer);	896	array_free (timer, EMPTY0);
809	#if EV_PERIODICS	897	#if EV_PERIODICS
810	array_free_microshit (periodic);	898	array_free (periodic, EMPTY0);
811	#endif	899	#endif
812	array_free_microshit (idle);	900	array_free (idle, EMPTY0);
813	array_free_microshit (prepare);	901	array_free (prepare, EMPTY0);
814	array_free_microshit (check);	902	array_free (check, EMPTY0);
815		903
816	method = 0;	904	backend = 0;
817	}	905	}
818		906
819	static void	907	static void
820	loop_fork (EV_P)	908	loop_fork (EV_P)
821	{	909	{
		910	#if EV_USE_PORT
		911	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		912	#endif
		913	#if EV_USE_KQUEUE
		914	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		915	#endif
822	#if EV_USE_EPOLL	916	#if EV_USE_EPOLL
823	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	917	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
824	#endif
825	#if EV_USE_KQUEUE
826	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
827	#endif	918	#endif
828		919
829	if (ev_is_active (&sigev))	920	if (ev_is_active (&sigev))
830	{	921	{
831	/* default loop */	922	/* default loop */
…		…
844	postfork = 0;	935	postfork = 0;
845	}	936	}
846		937
847	#if EV_MULTIPLICITY	938	#if EV_MULTIPLICITY
848	struct ev_loop *	939	struct ev_loop *
849	ev_loop_new (int methods)	940	ev_loop_new (unsigned int flags)
850	{	941	{
851	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	942	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
852		943
853	memset (loop, 0, sizeof (struct ev_loop));	944	memset (loop, 0, sizeof (struct ev_loop));
854		945
855	loop_init (EV_A_ methods);	946	loop_init (EV_A_ flags);
856		947
857	if (ev_method (EV_A))	948	if (ev_backend (EV_A))
858	return loop;	949	return loop;
859		950
860	return 0;	951	return 0;
861	}	952	}
862		953
…		…
875		966
876	#endif	967	#endif
877		968
878	#if EV_MULTIPLICITY	969	#if EV_MULTIPLICITY
879	struct ev_loop *	970	struct ev_loop *
		971	ev_default_loop_init (unsigned int flags)
880	#else	972	#else
881	int	973	int
		974	ev_default_loop (unsigned int flags)
882	#endif	975	#endif
883	ev_default_loop (int methods)
884	{	976	{
885	if (sigpipe [0] == sigpipe [1])	977	if (sigpipe [0] == sigpipe [1])
886	if (pipe (sigpipe))	978	if (pipe (sigpipe))
887	return 0;	979	return 0;
888		980
889	if (!default_loop)	981	if (!ev_default_loop_ptr)
890	{	982	{
891	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
892	struct ev_loop *loop = default_loop = &default_loop_struct;	984	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
893	#else	985	#else
894	default_loop = 1;	986	ev_default_loop_ptr = 1;
895	#endif	987	#endif
896		988
897	loop_init (EV_A_ methods);	989	loop_init (EV_A_ flags);
898		990
899	if (ev_method (EV_A))	991	if (ev_backend (EV_A))
900	{	992	{
901	siginit (EV_A);	993	siginit (EV_A);
902		994
903	#ifndef WIN32	995	#ifndef _WIN32
904	ev_signal_init (&childev, childcb, SIGCHLD);	996	ev_signal_init (&childev, childcb, SIGCHLD);
905	ev_set_priority (&childev, EV_MAXPRI);	997	ev_set_priority (&childev, EV_MAXPRI);
906	ev_signal_start (EV_A_ &childev);	998	ev_signal_start (EV_A_ &childev);
907	ev_unref (EV_A); /* child watcher should not keep loop alive */	999	ev_unref (EV_A); /* child watcher should not keep loop alive */
908	#endif	1000	#endif
909	}	1001	}
910	else	1002	else
911	default_loop = 0;	1003	ev_default_loop_ptr = 0;
912	}	1004	}
913		1005
914	return default_loop;	1006	return ev_default_loop_ptr;
915	}	1007	}
916		1008
917	void	1009	void
918	ev_default_destroy (void)	1010	ev_default_destroy (void)
919	{	1011	{
920	#if EV_MULTIPLICITY	1012	#if EV_MULTIPLICITY
921	struct ev_loop *loop = default_loop;	1013	struct ev_loop *loop = ev_default_loop_ptr;
922	#endif	1014	#endif
923		1015
924	#ifndef WIN32	1016	#ifndef _WIN32
925	ev_ref (EV_A); /* child watcher */	1017	ev_ref (EV_A); /* child watcher */
926	ev_signal_stop (EV_A_ &childev);	1018	ev_signal_stop (EV_A_ &childev);
927	#endif	1019	#endif
928		1020
929	ev_ref (EV_A); /* signal watcher */	1021	ev_ref (EV_A); /* signal watcher */
…		…
937		1029
938	void	1030	void
939	ev_default_fork (void)	1031	ev_default_fork (void)
940	{	1032	{
941	#if EV_MULTIPLICITY	1033	#if EV_MULTIPLICITY
942	struct ev_loop *loop = default_loop;	1034	struct ev_loop *loop = ev_default_loop_ptr;
943	#endif	1035	#endif
944		1036
945	if (method)	1037	if (backend)
946	postfork = 1;	1038	postfork = 1;
947	}	1039	}
948		1040
949	/*****************************************************************************/	1041	/*****************************************************************************/
950		1042
…		…
958	return 1;	1050	return 1;
959		1051
960	return 0;	1052	return 0;
961	}	1053	}
962		1054
963	static void	1055	inline void
964	call_pending (EV_P)	1056	call_pending (EV_P)
965	{	1057	{
966	int pri;	1058	int pri;
967		1059
968	for (pri = NUMPRI; pri--; )	1060	for (pri = NUMPRI; pri--; )
969	while (pendingcnt [pri])	1061	while (pendingcnt [pri])
970	{	1062	{
971	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1063	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
972		1064
973	if (p->w)	1065	if (expect_true (p->w))
974	{	1066	{
975	p->w->pending = 0;	1067	p->w->pending = 0;
976	EV_CB_INVOKE (p->w, p->events);	1068	EV_CB_INVOKE (p->w, p->events);
977	}	1069	}
978	}	1070	}
979	}	1071	}
980		1072
981	static void	1073	inline void
982	timers_reify (EV_P)	1074	timers_reify (EV_P)
983	{	1075	{
984	while (timercnt && ((WT)timers [0])->at <= mn_now)	1076	while (timercnt && ((WT)timers [0])->at <= mn_now)
985	{	1077	{
986	struct ev_timer *w = timers [0];	1078	struct ev_timer *w = timers [0];
…		…
1004	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1096	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1005	}	1097	}
1006	}	1098	}
1007		1099
1008	#if EV_PERIODICS	1100	#if EV_PERIODICS
1009	static void	1101	inline void
1010	periodics_reify (EV_P)	1102	periodics_reify (EV_P)
1011	{	1103	{
1012	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1104	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1013	{	1105	{
1014	struct ev_periodic *w = periodics [0];	1106	struct ev_periodic *w = periodics [0];
…		…
1016	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1108	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1017		1109
1018	/* first reschedule or stop timer */	1110	/* first reschedule or stop timer */
1019	if (w->reschedule_cb)	1111	if (w->reschedule_cb)
1020	{	1112	{
1021	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1113	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1022
1023	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1114	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1024	downheap ((WT *)periodics, periodiccnt, 0);	1115	downheap ((WT *)periodics, periodiccnt, 0);
1025	}	1116	}
1026	else if (w->interval)	1117	else if (w->interval)
1027	{	1118	{
…		…
1074	ev_rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
1075	return 1;	1166	return 1;
1076	}	1167	}
1077	}	1168	}
1078		1169
1079	static void	1170	inline void
1080	time_update (EV_P)	1171	time_update (EV_P)
1081	{	1172	{
1082	int i;	1173	int i;
1083		1174
1084	#if EV_USE_MONOTONIC	1175	#if EV_USE_MONOTONIC
…		…
1145	ev_loop (EV_P_ int flags)	1236	ev_loop (EV_P_ int flags)
1146	{	1237	{
1147	double block;	1238	double block;
1148	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1239	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1149		1240
1150	do	1241	while (activecnt)
1151	{	1242	{
1152	/* queue check watchers (and execute them) */	1243	/* queue check watchers (and execute them) */
1153	if (expect_false (preparecnt))	1244	if (expect_false (preparecnt))
1154	{	1245	{
1155	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1246	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1183	{	1274	{
1184	block = MAX_BLOCKTIME;	1275	block = MAX_BLOCKTIME;
1185		1276
1186	if (timercnt)	1277	if (timercnt)
1187	{	1278	{
1188	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1279	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1189	if (block > to) block = to;	1280	if (block > to) block = to;
1190	}	1281	}
1191		1282
1192	#if EV_PERIODICS	1283	#if EV_PERIODICS
1193	if (periodiccnt)	1284	if (periodiccnt)
1194	{	1285	{
1195	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1286	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1196	if (block > to) block = to;	1287	if (block > to) block = to;
1197	}	1288	}
1198	#endif	1289	#endif
1199		1290
1200	if (block < 0.) block = 0.;	1291	if (expect_false (block < 0.)) block = 0.;
1201	}	1292	}
1202		1293
1203	method_poll (EV_A_ block);	1294	backend_poll (EV_A_ block);
1204		1295
1205	/* update ev_rt_now, do magic */	1296	/* update ev_rt_now, do magic */
1206	time_update (EV_A);	1297	time_update (EV_A);
1207		1298
1208	/* queue pending timers and reschedule them */	1299	/* queue pending timers and reschedule them */
…		…
1214	/* queue idle watchers unless io or timers are pending */	1305	/* queue idle watchers unless io or timers are pending */
1215	if (idlecnt && !any_pending (EV_A))	1306	if (idlecnt && !any_pending (EV_A))
1216	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1307	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1217		1308
1218	/* queue check watchers, to be executed first */	1309	/* queue check watchers, to be executed first */
1219	if (checkcnt)	1310	if (expect_false (checkcnt))
1220	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1311	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1221		1312
1222	call_pending (EV_A);	1313	call_pending (EV_A);
		1314
		1315	if (expect_false (loop_done))
		1316	break;
1223	}	1317	}
1224	while (activecnt && !loop_done);
1225		1318
1226	if (loop_done != 2)	1319	if (loop_done != 2)
1227	loop_done = 0;	1320	loop_done = 0;
1228	}	1321	}
1229		1322
…		…
1289	void	1382	void
1290	ev_io_start (EV_P_ struct ev_io *w)	1383	ev_io_start (EV_P_ struct ev_io *w)
1291	{	1384	{
1292	int fd = w->fd;	1385	int fd = w->fd;
1293		1386
1294	if (ev_is_active (w))	1387	if (expect_false (ev_is_active (w)))
1295	return;	1388	return;
1296		1389
1297	assert (("ev_io_start called with negative fd", fd >= 0));	1390	assert (("ev_io_start called with negative fd", fd >= 0));
1298		1391
1299	ev_start (EV_A_ (W)w, 1);	1392	ev_start (EV_A_ (W)w, 1);
…		…
1305		1398
1306	void	1399	void
1307	ev_io_stop (EV_P_ struct ev_io *w)	1400	ev_io_stop (EV_P_ struct ev_io *w)
1308	{	1401	{
1309	ev_clear_pending (EV_A_ (W)w);	1402	ev_clear_pending (EV_A_ (W)w);
1310	if (!ev_is_active (w))	1403	if (expect_false (!ev_is_active (w)))
1311	return;	1404	return;
1312		1405
1313	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1406	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1314		1407
1315	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1408	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1319	}	1412	}
1320		1413
1321	void	1414	void
1322	ev_timer_start (EV_P_ struct ev_timer *w)	1415	ev_timer_start (EV_P_ struct ev_timer *w)
1323	{	1416	{
1324	if (ev_is_active (w))	1417	if (expect_false (ev_is_active (w)))
1325	return;	1418	return;
1326		1419
1327	((WT)w)->at += mn_now;	1420	((WT)w)->at += mn_now;
1328		1421
1329	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1422	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1330		1423
1331	ev_start (EV_A_ (W)w, ++timercnt);	1424	ev_start (EV_A_ (W)w, ++timercnt);
1332	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1425	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1333	timers [timercnt - 1] = w;	1426	timers [timercnt - 1] = w;
1334	upheap ((WT *)timers, timercnt - 1);	1427	upheap ((WT *)timers, timercnt - 1);
1335		1428
1336	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1429	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1337	}	1430	}
1338		1431
1339	void	1432	void
1340	ev_timer_stop (EV_P_ struct ev_timer *w)	1433	ev_timer_stop (EV_P_ struct ev_timer *w)
1341	{	1434	{
1342	ev_clear_pending (EV_A_ (W)w);	1435	ev_clear_pending (EV_A_ (W)w);
1343	if (!ev_is_active (w))	1436	if (expect_false (!ev_is_active (w)))
1344	return;	1437	return;
1345		1438
1346	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1439	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1347		1440
1348	if (((W)w)->active < timercnt--)	1441	if (expect_true (((W)w)->active < timercnt--))
1349	{	1442	{
1350	timers [((W)w)->active - 1] = timers [timercnt];	1443	timers [((W)w)->active - 1] = timers [timercnt];
1351	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1444	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1352	}	1445	}
1353		1446
1354	((WT)w)->at -= mn_now;	1447	((WT)w)->at -= mn_now;
1355		1448
1356	ev_stop (EV_A_ (W)w);	1449	ev_stop (EV_A_ (W)w);
…		…
1360	ev_timer_again (EV_P_ struct ev_timer *w)	1453	ev_timer_again (EV_P_ struct ev_timer *w)
1361	{	1454	{
1362	if (ev_is_active (w))	1455	if (ev_is_active (w))
1363	{	1456	{
1364	if (w->repeat)	1457	if (w->repeat)
		1458	{
		1459	((WT)w)->at = mn_now + w->repeat;
1365	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1460	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1461	}
1366	else	1462	else
1367	ev_timer_stop (EV_A_ w);	1463	ev_timer_stop (EV_A_ w);
1368	}	1464	}
1369	else if (w->repeat)	1465	else if (w->repeat)
		1466	{
		1467	w->at = w->repeat;
1370	ev_timer_start (EV_A_ w);	1468	ev_timer_start (EV_A_ w);
		1469	}
1371	}	1470	}
1372		1471
1373	#if EV_PERIODICS	1472	#if EV_PERIODICS
1374	void	1473	void
1375	ev_periodic_start (EV_P_ struct ev_periodic *w)	1474	ev_periodic_start (EV_P_ struct ev_periodic *w)
1376	{	1475	{
1377	if (ev_is_active (w))	1476	if (expect_false (ev_is_active (w)))
1378	return;	1477	return;
1379		1478
1380	if (w->reschedule_cb)	1479	if (w->reschedule_cb)
1381	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1480	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1382	else if (w->interval)	1481	else if (w->interval)
…		…
1385	/* this formula differs from the one in periodic_reify because we do not always round up */	1484	/* this formula differs from the one in periodic_reify because we do not always round up */
1386	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1485	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1387	}	1486	}
1388		1487
1389	ev_start (EV_A_ (W)w, ++periodiccnt);	1488	ev_start (EV_A_ (W)w, ++periodiccnt);
1390	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1489	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1391	periodics [periodiccnt - 1] = w;	1490	periodics [periodiccnt - 1] = w;
1392	upheap ((WT *)periodics, periodiccnt - 1);	1491	upheap ((WT *)periodics, periodiccnt - 1);
1393		1492
1394	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1493	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1395	}	1494	}
1396		1495
1397	void	1496	void
1398	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1497	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1399	{	1498	{
1400	ev_clear_pending (EV_A_ (W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1401	if (!ev_is_active (w))	1500	if (expect_false (!ev_is_active (w)))
1402	return;	1501	return;
1403		1502
1404	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1503	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1405		1504
1406	if (((W)w)->active < periodiccnt--)	1505	if (expect_true (((W)w)->active < periodiccnt--))
1407	{	1506	{
1408	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1507	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1409	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1508	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1410	}	1509	}
1411		1510
1412	ev_stop (EV_A_ (W)w);	1511	ev_stop (EV_A_ (W)w);
1413	}	1512	}
1414		1513
…		…
1422	#endif	1521	#endif
1423		1522
1424	void	1523	void
1425	ev_idle_start (EV_P_ struct ev_idle *w)	1524	ev_idle_start (EV_P_ struct ev_idle *w)
1426	{	1525	{
1427	if (ev_is_active (w))	1526	if (expect_false (ev_is_active (w)))
1428	return;	1527	return;
1429		1528
1430	ev_start (EV_A_ (W)w, ++idlecnt);	1529	ev_start (EV_A_ (W)w, ++idlecnt);
1431	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1530	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1432	idles [idlecnt - 1] = w;	1531	idles [idlecnt - 1] = w;
1433	}	1532	}
1434		1533
1435	void	1534	void
1436	ev_idle_stop (EV_P_ struct ev_idle *w)	1535	ev_idle_stop (EV_P_ struct ev_idle *w)
1437	{	1536	{
1438	ev_clear_pending (EV_A_ (W)w);	1537	ev_clear_pending (EV_A_ (W)w);
1439	if (!ev_is_active (w))	1538	if (expect_false (!ev_is_active (w)))
1440	return;	1539	return;
1441		1540
1442	idles [((W)w)->active - 1] = idles [--idlecnt];	1541	idles [((W)w)->active - 1] = idles [--idlecnt];
1443	ev_stop (EV_A_ (W)w);	1542	ev_stop (EV_A_ (W)w);
1444	}	1543	}
1445		1544
1446	void	1545	void
1447	ev_prepare_start (EV_P_ struct ev_prepare *w)	1546	ev_prepare_start (EV_P_ struct ev_prepare *w)
1448	{	1547	{
1449	if (ev_is_active (w))	1548	if (expect_false (ev_is_active (w)))
1450	return;	1549	return;
1451		1550
1452	ev_start (EV_A_ (W)w, ++preparecnt);	1551	ev_start (EV_A_ (W)w, ++preparecnt);
1453	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1552	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1454	prepares [preparecnt - 1] = w;	1553	prepares [preparecnt - 1] = w;
1455	}	1554	}
1456		1555
1457	void	1556	void
1458	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1557	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1459	{	1558	{
1460	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1461	if (!ev_is_active (w))	1560	if (expect_false (!ev_is_active (w)))
1462	return;	1561	return;
1463		1562
1464	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1563	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1465	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1466	}	1565	}
1467		1566
1468	void	1567	void
1469	ev_check_start (EV_P_ struct ev_check *w)	1568	ev_check_start (EV_P_ struct ev_check *w)
1470	{	1569	{
1471	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1472	return;	1571	return;
1473		1572
1474	ev_start (EV_A_ (W)w, ++checkcnt);	1573	ev_start (EV_A_ (W)w, ++checkcnt);
1475	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1574	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1476	checks [checkcnt - 1] = w;	1575	checks [checkcnt - 1] = w;
1477	}	1576	}
1478		1577
1479	void	1578	void
1480	ev_check_stop (EV_P_ struct ev_check *w)	1579	ev_check_stop (EV_P_ struct ev_check *w)
1481	{	1580	{
1482	ev_clear_pending (EV_A_ (W)w);	1581	ev_clear_pending (EV_A_ (W)w);
1483	if (!ev_is_active (w))	1582	if (expect_false (!ev_is_active (w)))
1484	return;	1583	return;
1485		1584
1486	checks [((W)w)->active - 1] = checks [--checkcnt];	1585	checks [((W)w)->active - 1] = checks [--checkcnt];
1487	ev_stop (EV_A_ (W)w);	1586	ev_stop (EV_A_ (W)w);
1488	}	1587	}
…		…
1493		1592
1494	void	1593	void
1495	ev_signal_start (EV_P_ struct ev_signal *w)	1594	ev_signal_start (EV_P_ struct ev_signal *w)
1496	{	1595	{
1497	#if EV_MULTIPLICITY	1596	#if EV_MULTIPLICITY
1498	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1597	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1499	#endif	1598	#endif
1500	if (ev_is_active (w))	1599	if (expect_false (ev_is_active (w)))
1501	return;	1600	return;
1502		1601
1503	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1602	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1504		1603
1505	ev_start (EV_A_ (W)w, 1);	1604	ev_start (EV_A_ (W)w, 1);
1506	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1605	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1507	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1606	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1508		1607
1509	if (!((WL)w)->next)	1608	if (!((WL)w)->next)
1510	{	1609	{
1511	#if WIN32	1610	#if _WIN32
1512	signal (w->signum, sighandler);	1611	signal (w->signum, sighandler);
1513	#else	1612	#else
1514	struct sigaction sa;	1613	struct sigaction sa;
1515	sa.sa_handler = sighandler;	1614	sa.sa_handler = sighandler;
1516	sigfillset (&sa.sa_mask);	1615	sigfillset (&sa.sa_mask);
…		…
1522		1621
1523	void	1622	void
1524	ev_signal_stop (EV_P_ struct ev_signal *w)	1623	ev_signal_stop (EV_P_ struct ev_signal *w)
1525	{	1624	{
1526	ev_clear_pending (EV_A_ (W)w);	1625	ev_clear_pending (EV_A_ (W)w);
1527	if (!ev_is_active (w))	1626	if (expect_false (!ev_is_active (w)))
1528	return;	1627	return;
1529		1628
1530	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1629	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1531	ev_stop (EV_A_ (W)w);	1630	ev_stop (EV_A_ (W)w);
1532		1631
…		…
1536		1635
1537	void	1636	void
1538	ev_child_start (EV_P_ struct ev_child *w)	1637	ev_child_start (EV_P_ struct ev_child *w)
1539	{	1638	{
1540	#if EV_MULTIPLICITY	1639	#if EV_MULTIPLICITY
1541	assert (("child watchers are only supported in the default loop", loop == default_loop));	1640	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1542	#endif	1641	#endif
1543	if (ev_is_active (w))	1642	if (expect_false (ev_is_active (w)))
1544	return;	1643	return;
1545		1644
1546	ev_start (EV_A_ (W)w, 1);	1645	ev_start (EV_A_ (W)w, 1);
1547	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1646	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1548	}	1647	}
1549		1648
1550	void	1649	void
1551	ev_child_stop (EV_P_ struct ev_child *w)	1650	ev_child_stop (EV_P_ struct ev_child *w)
1552	{	1651	{
1553	ev_clear_pending (EV_A_ (W)w);	1652	ev_clear_pending (EV_A_ (W)w);
1554	if (ev_is_active (w))	1653	if (expect_false (!ev_is_active (w)))
1555	return;	1654	return;
1556		1655
1557	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1656	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1558	ev_stop (EV_A_ (W)w);	1657	ev_stop (EV_A_ (W)w);
1559	}	1658	}
…		…
1596	void	1695	void
1597	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1696	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1598	{	1697	{
1599	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1698	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1600		1699
1601	if (!once)	1700	if (expect_false (!once))
		1701	{
1602	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1702	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1603	else	1703	return;
1604	{	1704	}
		1705
1605	once->cb = cb;	1706	once->cb = cb;
1606	once->arg = arg;	1707	once->arg = arg;
1607		1708
1608	ev_init (&once->io, once_cb_io);	1709	ev_init (&once->io, once_cb_io);
1609	if (fd >= 0)	1710	if (fd >= 0)
1610	{	1711	{
1611	ev_io_set (&once->io, fd, events);	1712	ev_io_set (&once->io, fd, events);
1612	ev_io_start (EV_A_ &once->io);	1713	ev_io_start (EV_A_ &once->io);
1613	}	1714	}
1614		1715
1615	ev_init (&once->to, once_cb_to);	1716	ev_init (&once->to, once_cb_to);
1616	if (timeout >= 0.)	1717	if (timeout >= 0.)
1617	{	1718	{
1618	ev_timer_set (&once->to, timeout, 0.);	1719	ev_timer_set (&once->to, timeout, 0.);
1619	ev_timer_start (EV_A_ &once->to);	1720	ev_timer_start (EV_A_ &once->to);
1620	}
1621	}	1721	}
1622	}	1722	}
1623		1723
1624	#ifdef __cplusplus	1724	#ifdef __cplusplus
1625	}	1725	}

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Comparing libev/ev.c (file contents): Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC vs. Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC vs.
Revision 1.132 by root, Fri Nov 23 10:36:30 2007 UTC