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

Comparing libev/ev.c (file contents):
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC vs.
Revision 1.135 by root, Sat Nov 24 06:23:27 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;
…		…
233	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
234		284
235	struct ev_loop	285	struct ev_loop
236	{	286	{
237	ev_tstamp ev_rt_now;	287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
238	#define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
239	#include "ev_vars.h"	290	#include "ev_vars.h"
240	#undef VAR	291	#undef VAR
241	};	292	};
242	#include "ev_wrap.h"	293	#include "ev_wrap.h"
243		294
244	struct ev_loop default_loop_struct;	295	static struct ev_loop default_loop_struct;
245	static struct ev_loop *default_loop;	296	struct ev_loop *ev_default_loop_ptr;
246		297
247	#else	298	#else
248		299
249	ev_tstamp ev_rt_now;	300	ev_tstamp ev_rt_now;
250	#define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
251	#include "ev_vars.h"	302	#include "ev_vars.h"
252	#undef VAR	303	#undef VAR
253		304
254	static int default_loop;	305	static int ev_default_loop_ptr;
255		306
256	#endif	307	#endif
257		308
258	/*****************************************************************************/	309	/*****************************************************************************/
259		310
…		…
292	{	343	{
293	return ev_rt_now;	344	return ev_rt_now;
294	}	345	}
295	#endif	346	#endif
296		347
297	#define array_roundsize(type,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
298		349
299	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
300	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
301	{ \	352	{ \
302	int newcnt = cur; \	353	int newcnt = cur; \
…		…
317	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
318	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
319	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
320	}	371	}
321		372
322	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
323	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
324	#define array_free_microshit(stem) \
325	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
326
327	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
328	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;
329		375
330	/*****************************************************************************/	376	/*****************************************************************************/
331		377
…		…
345	void	391	void
346	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
347	{	393	{
348	W w_ = (W)w;	394	W w_ = (W)w;
349		395
350	if (w_->pending)	396	if (expect_false (w_->pending))
351	{	397	{
352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
353	return;	399	return;
354	}	400	}
355		401
		402	if (expect_false (!w_->cb))
		403	return;
		404
356	w_->pending = ++pendingcnt [ABSPRI (w_)];	405	w_->pending = ++pendingcnt [ABSPRI (w_)];
357	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	406	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	407	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	408	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
360	}	409	}
361		410
362	static void	411	static void
…		…
389	fd_event (EV_A_ fd, revents);	438	fd_event (EV_A_ fd, revents);
390	}	439	}
391		440
392	/*****************************************************************************/	441	/*****************************************************************************/
393		442
394	static void	443	inline void
395	fd_reify (EV_P)	444	fd_reify (EV_P)
396	{	445	{
397	int i;	446	int i;
398		447
399	for (i = 0; i < fdchangecnt; ++i)	448	for (i = 0; i < fdchangecnt; ++i)
…		…
405	int events = 0;	454	int events = 0;
406		455
407	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	456	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
408	events \|= w->events;	457	events \|= w->events;
409		458
		459	#if EV_SELECT_IS_WINSOCKET
		460	if (events)
		461	{
		462	unsigned long argp;
		463	anfd->handle = _get_osfhandle (fd);
		464	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		465	}
		466	#endif
		467
410	anfd->reify = 0;	468	anfd->reify = 0;
411		469
412	method_modify (EV_A_ fd, anfd->events, events);	470	backend_modify (EV_A_ fd, anfd->events, events);
413	anfd->events = events;	471	anfd->events = events;
414	}	472	}
415		473
416	fdchangecnt = 0;	474	fdchangecnt = 0;
417	}	475	}
418		476
419	static void	477	static void
420	fd_change (EV_P_ int fd)	478	fd_change (EV_P_ int fd)
421	{	479	{
422	if (anfds [fd].reify)	480	if (expect_false (anfds [fd].reify))
423	return;	481	return;
424		482
425	anfds [fd].reify = 1;	483	anfds [fd].reify = 1;
426		484
427	++fdchangecnt;	485	++fdchangecnt;
428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	486	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
429	fdchanges [fdchangecnt - 1] = fd;	487	fdchanges [fdchangecnt - 1] = fd;
430	}	488	}
431		489
432	static void	490	static void
433	fd_kill (EV_P_ int fd)	491	fd_kill (EV_P_ int fd)
…		…
439	ev_io_stop (EV_A_ w);	497	ev_io_stop (EV_A_ w);
440	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	498	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
441	}	499	}
442	}	500	}
443		501
444	static int	502	inline int
445	fd_valid (int fd)	503	fd_valid (int fd)
446	{	504	{
447	#ifdef WIN32	505	#ifdef _WIN32
448	return !!win32_get_osfhandle (fd);	506	return _get_osfhandle (fd) != -1;
449	#else	507	#else
450	return fcntl (fd, F_GETFD) != -1;	508	return fcntl (fd, F_GETFD) != -1;
451	#endif	509	#endif
452	}	510	}
453		511
…		…
475	fd_kill (EV_A_ fd);	533	fd_kill (EV_A_ fd);
476	return;	534	return;
477	}	535	}
478	}	536	}
479		537
480	/* usually called after fork if method needs to re-arm all fds from scratch */	538	/* usually called after fork if backend needs to re-arm all fds from scratch */
481	static void	539	static void
482	fd_rearm_all (EV_P)	540	fd_rearm_all (EV_P)
483	{	541	{
484	int fd;	542	int fd;
485		543
…		…
534	heap [k] = w;	592	heap [k] = w;
535	((W)heap [k])->active = k + 1;	593	((W)heap [k])->active = k + 1;
536	}	594	}
537		595
538	inline void	596	inline void
539	adjustheap (WT *heap, int N, int k, ev_tstamp at)	597	adjustheap (WT *heap, int N, int k)
540	{	598	{
541	ev_tstamp old_at = heap [k]->at;	599	upheap (heap, k);
542	heap [k]->at = at;
543
544	if (old_at < at)
545	downheap (heap, N, k);	600	downheap (heap, N, k);
546	else
547	upheap (heap, k);
548	}	601	}
549		602
550	/*****************************************************************************/	603	/*****************************************************************************/
551		604
552	typedef struct	605	typedef struct
…		…
575	}	628	}
576		629
577	static void	630	static void
578	sighandler (int signum)	631	sighandler (int signum)
579	{	632	{
580	#if WIN32	633	#if _WIN32
581	signal (signum, sighandler);	634	signal (signum, sighandler);
582	#endif	635	#endif
583		636
584	signals [signum - 1].gotsig = 1;	637	signals [signum - 1].gotsig = 1;
585		638
586	if (!gotsig)	639	if (!gotsig)
587	{	640	{
588	int old_errno = errno;	641	int old_errno = errno;
589	gotsig = 1;	642	gotsig = 1;
590	#ifdef WIN32
591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
592	#else
593	write (sigpipe [1], &signum, 1);	643	write (sigpipe [1], &signum, 1);
594	#endif
595	errno = old_errno;	644	errno = old_errno;
596	}	645	}
597	}	646	}
598		647
599	void	648	void
600	ev_feed_signal_event (EV_P_ int signum)	649	ev_feed_signal_event (EV_P_ int signum)
601	{	650	{
602	WL w;	651	WL w;
603		652
604	#if EV_MULTIPLICITY	653	#if EV_MULTIPLICITY
605	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	654	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
606	#endif	655	#endif
607		656
608	--signum;	657	--signum;
609		658
610	if (signum < 0 \|\| signum >= signalmax)	659	if (signum < 0 \|\| signum >= signalmax)
…		…
619	static void	668	static void
620	sigcb (EV_P_ struct ev_io *iow, int revents)	669	sigcb (EV_P_ struct ev_io *iow, int revents)
621	{	670	{
622	int signum;	671	int signum;
623		672
624	#ifdef WIN32
625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
626	#else
627	read (sigpipe [0], &revents, 1);	673	read (sigpipe [0], &revents, 1);
628	#endif
629	gotsig = 0;	674	gotsig = 0;
630		675
631	for (signum = signalmax; signum--; )	676	for (signum = signalmax; signum--; )
632	if (signals [signum].gotsig)	677	if (signals [signum].gotsig)
633	ev_feed_signal_event (EV_A_ signum + 1);	678	ev_feed_signal_event (EV_A_ signum + 1);
634	}	679	}
635		680
636	static void	681	static void
		682	fd_intern (int fd)
		683	{
		684	#ifdef _WIN32
		685	int arg = 1;
		686	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		687	#else
		688	fcntl (fd, F_SETFD, FD_CLOEXEC);
		689	fcntl (fd, F_SETFL, O_NONBLOCK);
		690	#endif
		691	}
		692
		693	static void
637	siginit (EV_P)	694	siginit (EV_P)
638	{	695	{
639	#ifndef WIN32	696	fd_intern (sigpipe [0]);
640	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	697	fd_intern (sigpipe [1]);
641	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
642
643	/* rather than sort out wether we really need nb, set it */
644	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
645	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
646	#endif
647		698
648	ev_io_set (&sigev, sigpipe [0], EV_READ);	699	ev_io_set (&sigev, sigpipe [0], EV_READ);
649	ev_io_start (EV_A_ &sigev);	700	ev_io_start (EV_A_ &sigev);
650	ev_unref (EV_A); /* child watcher should not keep loop alive */	701	ev_unref (EV_A); /* child watcher should not keep loop alive */
651	}	702	}
652		703
653	/*****************************************************************************/	704	/*****************************************************************************/
654		705
655	static struct ev_child *childs [PID_HASHSIZE];	706	static struct ev_child *childs [PID_HASHSIZE];
656		707
657	#ifndef WIN32	708	#ifndef _WIN32
658		709
659	static struct ev_signal childev;	710	static struct ev_signal childev;
660		711
661	#ifndef WCONTINUED	712	#ifndef WCONTINUED
662	# define WCONTINUED 0	713	# define WCONTINUED 0
…		…
683	int pid, status;	734	int pid, status;
684		735
685	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	736	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
686	{	737	{
687	/* make sure we are called again until all childs have been reaped */	738	/* make sure we are called again until all childs have been reaped */
		739	/* we need to do it this way so that the callback gets called before we continue */
688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	740	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
689		741
690	child_reap (EV_A_ sw, pid, pid, status);	742	child_reap (EV_A_ sw, pid, pid, status);
691	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	743	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
692	}	744	}
693	}	745	}
694		746
695	#endif	747	#endif
696		748
697	/*****************************************************************************/	749	/*****************************************************************************/
698		750
		751	#if EV_USE_PORT
		752	# include "ev_port.c"
		753	#endif
699	#if EV_USE_KQUEUE	754	#if EV_USE_KQUEUE
700	# include "ev_kqueue.c"	755	# include "ev_kqueue.c"
701	#endif	756	#endif
702	#if EV_USE_EPOLL	757	#if EV_USE_EPOLL
703	# include "ev_epoll.c"	758	# include "ev_epoll.c"
…		…
723		778
724	/* return true if we are running with elevated privileges and should ignore env variables */	779	/* return true if we are running with elevated privileges and should ignore env variables */
725	static int	780	static int
726	enable_secure (void)	781	enable_secure (void)
727	{	782	{
728	#ifdef WIN32	783	#ifdef _WIN32
729	return 0;	784	return 0;
730	#else	785	#else
731	return getuid () != geteuid ()	786	return getuid () != geteuid ()
732	\|\| getgid () != getegid ();	787	\|\| getgid () != getegid ();
733	#endif	788	#endif
734	}	789	}
735		790
736	int	791	unsigned int
737	ev_method (EV_P)	792	ev_supported_backends (void)
738	{	793	{
739	return method;	794	unsigned int flags = 0;
740	}
741		795
742	static void	796	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
743	loop_init (EV_P_ int methods)	797	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		798	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		799	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		800	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		801
		802	return flags;
		803	}
		804
		805	unsigned int
		806	ev_recommended_backends (void)
744	{	807	{
745	if (!method)	808	unsigned int flags = ev_supported_backends ();
		809
		810	#ifndef __NetBSD__
		811	/* kqueue is borked on everything but netbsd apparently */
		812	/* it usually doesn't work correctly on anything but sockets and pipes */
		813	flags &= ~EVBACKEND_KQUEUE;
		814	#endif
		815	#ifdef __APPLE__
		816	// flags &= ~EVBACKEND_KQUEUE; for documentation
		817	flags &= ~EVBACKEND_POLL;
		818	#endif
		819
		820	return flags;
		821	}
		822
		823	unsigned int
		824	ev_embeddable_backends (void)
		825	{
		826	return EVBACKEND_EPOLL
		827	\| EVBACKEND_KQUEUE
		828	\| EVBACKEND_PORT;
		829	}
		830
		831	unsigned int
		832	ev_backend (EV_P)
		833	{
		834	return backend;
		835	}
		836
		837	static void
		838	loop_init (EV_P_ unsigned int flags)
		839	{
		840	if (!backend)
746	{	841	{
747	#if EV_USE_MONOTONIC	842	#if EV_USE_MONOTONIC
748	{	843	{
749	struct timespec ts;	844	struct timespec ts;
750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	845	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
755	ev_rt_now = ev_time ();	850	ev_rt_now = ev_time ();
756	mn_now = get_clock ();	851	mn_now = get_clock ();
757	now_floor = mn_now;	852	now_floor = mn_now;
758	rtmn_diff = ev_rt_now - mn_now;	853	rtmn_diff = ev_rt_now - mn_now;
759		854
760	if (methods == EVMETHOD_AUTO)	855	if (!(flags & EVFLAG_NOENV)
761	if (!enable_secure () && getenv ("LIBEV_METHODS"))	856	&& !enable_secure ()
		857	&& getenv ("LIBEV_FLAGS"))
762	methods = atoi (getenv ("LIBEV_METHODS"));	858	flags = atoi (getenv ("LIBEV_FLAGS"));
763	else
764	methods = EVMETHOD_ANY;
765		859
766	method = 0;	860	if (!(flags & 0x0000ffffUL))
767	#if EV_USE_WIN32	861	flags \|= ev_recommended_backends ();
768	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	862
		863	backend = 0;
		864	#if EV_USE_PORT
		865	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
769	#endif	866	#endif
770	#if EV_USE_KQUEUE	867	#if EV_USE_KQUEUE
771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
772	#endif	869	#endif
773	#if EV_USE_EPOLL	870	#if EV_USE_EPOLL
774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
775	#endif	872	#endif
776	#if EV_USE_POLL	873	#if EV_USE_POLL
777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
778	#endif	875	#endif
779	#if EV_USE_SELECT	876	#if EV_USE_SELECT
780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	877	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
781	#endif	878	#endif
782		879
783	ev_init (&sigev, sigcb);	880	ev_init (&sigev, sigcb);
784	ev_set_priority (&sigev, EV_MAXPRI);	881	ev_set_priority (&sigev, EV_MAXPRI);
785	}	882	}
786	}	883	}
787		884
788	void	885	static void
789	loop_destroy (EV_P)	886	loop_destroy (EV_P)
790	{	887	{
791	int i;	888	int i;
792		889
793	#if EV_USE_WIN32	890	#if EV_USE_PORT
794	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	891	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
795	#endif	892	#endif
796	#if EV_USE_KQUEUE	893	#if EV_USE_KQUEUE
797	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	894	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
798	#endif	895	#endif
799	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
800	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	897	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
801	#endif	898	#endif
802	#if EV_USE_POLL	899	#if EV_USE_POLL
803	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	900	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
804	#endif	901	#endif
805	#if EV_USE_SELECT	902	#if EV_USE_SELECT
806	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	903	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
807	#endif	904	#endif
808		905
809	for (i = NUMPRI; i--; )	906	for (i = NUMPRI; i--; )
810	array_free (pending, [i]);	907	array_free (pending, [i]);
811		908
812	/* have to use the microsoft-never-gets-it-right macro */	909	/* have to use the microsoft-never-gets-it-right macro */
813	array_free_microshit (fdchange);	910	array_free (fdchange, EMPTY0);
814	array_free_microshit (timer);	911	array_free (timer, EMPTY0);
815	#if EV_PERIODICS	912	#if EV_PERIODICS
816	array_free_microshit (periodic);	913	array_free (periodic, EMPTY0);
817	#endif	914	#endif
818	array_free_microshit (idle);	915	array_free (idle, EMPTY0);
819	array_free_microshit (prepare);	916	array_free (prepare, EMPTY0);
820	array_free_microshit (check);	917	array_free (check, EMPTY0);
821		918
822	method = 0;	919	backend = 0;
823	}	920	}
824		921
825	static void	922	static void
826	loop_fork (EV_P)	923	loop_fork (EV_P)
827	{	924	{
		925	#if EV_USE_PORT
		926	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		927	#endif
		928	#if EV_USE_KQUEUE
		929	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		930	#endif
828	#if EV_USE_EPOLL	931	#if EV_USE_EPOLL
829	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	932	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
830	#endif
831	#if EV_USE_KQUEUE
832	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
833	#endif	933	#endif
834		934
835	if (ev_is_active (&sigev))	935	if (ev_is_active (&sigev))
836	{	936	{
837	/* default loop */	937	/* default loop */
…		…
850	postfork = 0;	950	postfork = 0;
851	}	951	}
852		952
853	#if EV_MULTIPLICITY	953	#if EV_MULTIPLICITY
854	struct ev_loop *	954	struct ev_loop *
855	ev_loop_new (int methods)	955	ev_loop_new (unsigned int flags)
856	{	956	{
857	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	957	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
858		958
859	memset (loop, 0, sizeof (struct ev_loop));	959	memset (loop, 0, sizeof (struct ev_loop));
860		960
861	loop_init (EV_A_ methods);	961	loop_init (EV_A_ flags);
862		962
863	if (ev_method (EV_A))	963	if (ev_backend (EV_A))
864	return loop;	964	return loop;
865		965
866	return 0;	966	return 0;
867	}	967	}
868		968
…		…
881		981
882	#endif	982	#endif
883		983
884	#if EV_MULTIPLICITY	984	#if EV_MULTIPLICITY
885	struct ev_loop *	985	struct ev_loop *
		986	ev_default_loop_init (unsigned int flags)
886	#else	987	#else
887	int	988	int
		989	ev_default_loop (unsigned int flags)
888	#endif	990	#endif
889	ev_default_loop (int methods)
890	{	991	{
891	if (sigpipe [0] == sigpipe [1])	992	if (sigpipe [0] == sigpipe [1])
892	if (pipe (sigpipe))	993	if (pipe (sigpipe))
893	return 0;	994	return 0;
894		995
895	if (!default_loop)	996	if (!ev_default_loop_ptr)
896	{	997	{
897	#if EV_MULTIPLICITY	998	#if EV_MULTIPLICITY
898	struct ev_loop *loop = default_loop = &default_loop_struct;	999	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
899	#else	1000	#else
900	default_loop = 1;	1001	ev_default_loop_ptr = 1;
901	#endif	1002	#endif
902		1003
903	loop_init (EV_A_ methods);	1004	loop_init (EV_A_ flags);
904		1005
905	if (ev_method (EV_A))	1006	if (ev_backend (EV_A))
906	{	1007	{
907	siginit (EV_A);	1008	siginit (EV_A);
908		1009
909	#ifndef WIN32	1010	#ifndef _WIN32
910	ev_signal_init (&childev, childcb, SIGCHLD);	1011	ev_signal_init (&childev, childcb, SIGCHLD);
911	ev_set_priority (&childev, EV_MAXPRI);	1012	ev_set_priority (&childev, EV_MAXPRI);
912	ev_signal_start (EV_A_ &childev);	1013	ev_signal_start (EV_A_ &childev);
913	ev_unref (EV_A); /* child watcher should not keep loop alive */	1014	ev_unref (EV_A); /* child watcher should not keep loop alive */
914	#endif	1015	#endif
915	}	1016	}
916	else	1017	else
917	default_loop = 0;	1018	ev_default_loop_ptr = 0;
918	}	1019	}
919		1020
920	return default_loop;	1021	return ev_default_loop_ptr;
921	}	1022	}
922		1023
923	void	1024	void
924	ev_default_destroy (void)	1025	ev_default_destroy (void)
925	{	1026	{
926	#if EV_MULTIPLICITY	1027	#if EV_MULTIPLICITY
927	struct ev_loop *loop = default_loop;	1028	struct ev_loop *loop = ev_default_loop_ptr;
928	#endif	1029	#endif
929		1030
930	#ifndef WIN32	1031	#ifndef _WIN32
931	ev_ref (EV_A); /* child watcher */	1032	ev_ref (EV_A); /* child watcher */
932	ev_signal_stop (EV_A_ &childev);	1033	ev_signal_stop (EV_A_ &childev);
933	#endif	1034	#endif
934		1035
935	ev_ref (EV_A); /* signal watcher */	1036	ev_ref (EV_A); /* signal watcher */
…		…
943		1044
944	void	1045	void
945	ev_default_fork (void)	1046	ev_default_fork (void)
946	{	1047	{
947	#if EV_MULTIPLICITY	1048	#if EV_MULTIPLICITY
948	struct ev_loop *loop = default_loop;	1049	struct ev_loop *loop = ev_default_loop_ptr;
949	#endif	1050	#endif
950		1051
951	if (method)	1052	if (backend)
952	postfork = 1;	1053	postfork = 1;
953	}	1054	}
954		1055
955	/*****************************************************************************/	1056	/*****************************************************************************/
956		1057
…		…
964	return 1;	1065	return 1;
965		1066
966	return 0;	1067	return 0;
967	}	1068	}
968		1069
969	static void	1070	inline void
970	call_pending (EV_P)	1071	call_pending (EV_P)
971	{	1072	{
972	int pri;	1073	int pri;
973		1074
974	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
975	while (pendingcnt [pri])	1076	while (pendingcnt [pri])
976	{	1077	{
977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1078	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
978		1079
979	if (p->w)	1080	if (expect_true (p->w))
980	{	1081	{
981	p->w->pending = 0;	1082	p->w->pending = 0;
982	EV_CB_INVOKE (p->w, p->events);	1083	EV_CB_INVOKE (p->w, p->events);
983	}	1084	}
984	}	1085	}
985	}	1086	}
986		1087
987	static void	1088	inline void
988	timers_reify (EV_P)	1089	timers_reify (EV_P)
989	{	1090	{
990	while (timercnt && ((WT)timers [0])->at <= mn_now)	1091	while (timercnt && ((WT)timers [0])->at <= mn_now)
991	{	1092	{
992	struct ev_timer *w = timers [0];	1093	struct ev_timer *w = timers [0];
…		…
1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1111	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1011	}	1112	}
1012	}	1113	}
1013		1114
1014	#if EV_PERIODICS	1115	#if EV_PERIODICS
1015	static void	1116	inline void
1016	periodics_reify (EV_P)	1117	periodics_reify (EV_P)
1017	{	1118	{
1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1119	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1019	{	1120	{
1020	struct ev_periodic *w = periodics [0];	1121	struct ev_periodic *w = periodics [0];
…		…
1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1123	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1023		1124
1024	/* first reschedule or stop timer */	1125	/* first reschedule or stop timer */
1025	if (w->reschedule_cb)	1126	if (w->reschedule_cb)
1026	{	1127	{
1027	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1128	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1028
1029	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1129	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1030	downheap ((WT *)periodics, periodiccnt, 0);	1130	downheap ((WT *)periodics, periodiccnt, 0);
1031	}	1131	}
1032	else if (w->interval)	1132	else if (w->interval)
1033	{	1133	{
…		…
1080	ev_rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
1081	return 1;	1181	return 1;
1082	}	1182	}
1083	}	1183	}
1084		1184
1085	static void	1185	inline void
1086	time_update (EV_P)	1186	time_update (EV_P)
1087	{	1187	{
1088	int i;	1188	int i;
1089		1189
1090	#if EV_USE_MONOTONIC	1190	#if EV_USE_MONOTONIC
…		…
1148	static int loop_done;	1248	static int loop_done;
1149		1249
1150	void	1250	void
1151	ev_loop (EV_P_ int flags)	1251	ev_loop (EV_P_ int flags)
1152	{	1252	{
1153	double block;
1154	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1253	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1254	? EVUNLOOP_ONE
		1255	: EVUNLOOP_CANCEL;
1155		1256
1156	do	1257	while (activecnt)
1157	{	1258	{
1158	/* queue check watchers (and execute them) */	1259	/* queue check watchers (and execute them) */
1159	if (expect_false (preparecnt))	1260	if (expect_false (preparecnt))
1160	{	1261	{
1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1262	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1168		1269
1169	/* update fd-related kernel structures */	1270	/* update fd-related kernel structures */
1170	fd_reify (EV_A);	1271	fd_reify (EV_A);
1171		1272
1172	/* calculate blocking time */	1273	/* calculate blocking time */
		1274	{
		1275	double block;
1173		1276
1174	/* we only need this for !monotonic clock or timers, but as we basically	1277	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1175	always have timers, we just calculate it always */	1278	block = 0.; /* do not block at all */
		1279	else
		1280	{
		1281	/* update time to cancel out callback processing overhead */
1176	#if EV_USE_MONOTONIC	1282	#if EV_USE_MONOTONIC
1177	if (expect_true (have_monotonic))	1283	if (expect_true (have_monotonic))
1178	time_update_monotonic (EV_A);	1284	time_update_monotonic (EV_A);
1179	else	1285	else
1180	#endif	1286	#endif
1181	{	1287	{
1182	ev_rt_now = ev_time ();	1288	ev_rt_now = ev_time ();
1183	mn_now = ev_rt_now;	1289	mn_now = ev_rt_now;
1184	}	1290	}
1185		1291
1186	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1187	block = 0.;
1188	else
1189	{
1190	block = MAX_BLOCKTIME;	1292	block = MAX_BLOCKTIME;
1191		1293
1192	if (timercnt)	1294	if (timercnt)
1193	{	1295	{
1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1296	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1195	if (block > to) block = to;	1297	if (block > to) block = to;
1196	}	1298	}
1197		1299
1198	#if EV_PERIODICS	1300	#if EV_PERIODICS
1199	if (periodiccnt)	1301	if (periodiccnt)
1200	{	1302	{
1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1303	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1202	if (block > to) block = to;	1304	if (block > to) block = to;
1203	}	1305	}
1204	#endif	1306	#endif
1205		1307
1206	if (block < 0.) block = 0.;	1308	if (expect_false (block < 0.)) block = 0.;
1207	}	1309	}
1208		1310
1209	method_poll (EV_A_ block);	1311	backend_poll (EV_A_ block);
		1312	}
1210		1313
1211	/* update ev_rt_now, do magic */	1314	/* update ev_rt_now, do magic */
1212	time_update (EV_A);	1315	time_update (EV_A);
1213		1316
1214	/* queue pending timers and reschedule them */	1317	/* queue pending timers and reschedule them */
…		…
1220	/* queue idle watchers unless io or timers are pending */	1323	/* queue idle watchers unless io or timers are pending */
1221	if (idlecnt && !any_pending (EV_A))	1324	if (idlecnt && !any_pending (EV_A))
1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1325	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1223		1326
1224	/* queue check watchers, to be executed first */	1327	/* queue check watchers, to be executed first */
1225	if (checkcnt)	1328	if (expect_false (checkcnt))
1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1329	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1227		1330
1228	call_pending (EV_A);	1331	call_pending (EV_A);
1229	}
1230	while (activecnt && !loop_done);
1231		1332
1232	if (loop_done != 2)	1333	if (expect_false (loop_done))
1233	loop_done = 0;	1334	break;
		1335	}
		1336
		1337	if (loop_done == EVUNLOOP_ONE)
		1338	loop_done = EVUNLOOP_CANCEL;
1234	}	1339	}
1235		1340
1236	void	1341	void
1237	ev_unloop (EV_P_ int how)	1342	ev_unloop (EV_P_ int how)
1238	{	1343	{
…		…
1295	void	1400	void
1296	ev_io_start (EV_P_ struct ev_io *w)	1401	ev_io_start (EV_P_ struct ev_io *w)
1297	{	1402	{
1298	int fd = w->fd;	1403	int fd = w->fd;
1299		1404
1300	if (ev_is_active (w))	1405	if (expect_false (ev_is_active (w)))
1301	return;	1406	return;
1302		1407
1303	assert (("ev_io_start called with negative fd", fd >= 0));	1408	assert (("ev_io_start called with negative fd", fd >= 0));
1304		1409
1305	ev_start (EV_A_ (W)w, 1);	1410	ev_start (EV_A_ (W)w, 1);
…		…
1311		1416
1312	void	1417	void
1313	ev_io_stop (EV_P_ struct ev_io *w)	1418	ev_io_stop (EV_P_ struct ev_io *w)
1314	{	1419	{
1315	ev_clear_pending (EV_A_ (W)w);	1420	ev_clear_pending (EV_A_ (W)w);
1316	if (!ev_is_active (w))	1421	if (expect_false (!ev_is_active (w)))
1317	return;	1422	return;
1318		1423
1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1424	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1320		1425
1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1426	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1325	}	1430	}
1326		1431
1327	void	1432	void
1328	ev_timer_start (EV_P_ struct ev_timer *w)	1433	ev_timer_start (EV_P_ struct ev_timer *w)
1329	{	1434	{
1330	if (ev_is_active (w))	1435	if (expect_false (ev_is_active (w)))
1331	return;	1436	return;
1332		1437
1333	((WT)w)->at += mn_now;	1438	((WT)w)->at += mn_now;
1334		1439
1335	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1440	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1336		1441
1337	ev_start (EV_A_ (W)w, ++timercnt);	1442	ev_start (EV_A_ (W)w, ++timercnt);
1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1443	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1339	timers [timercnt - 1] = w;	1444	timers [timercnt - 1] = w;
1340	upheap ((WT *)timers, timercnt - 1);	1445	upheap ((WT *)timers, timercnt - 1);
1341		1446
1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1447	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1343	}	1448	}
1344		1449
1345	void	1450	void
1346	ev_timer_stop (EV_P_ struct ev_timer *w)	1451	ev_timer_stop (EV_P_ struct ev_timer *w)
1347	{	1452	{
1348	ev_clear_pending (EV_A_ (W)w);	1453	ev_clear_pending (EV_A_ (W)w);
1349	if (!ev_is_active (w))	1454	if (expect_false (!ev_is_active (w)))
1350	return;	1455	return;
1351		1456
1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1457	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1353		1458
1354	if (((W)w)->active < timercnt--)	1459	if (expect_true (((W)w)->active < timercnt--))
1355	{	1460	{
1356	timers [((W)w)->active - 1] = timers [timercnt];	1461	timers [((W)w)->active - 1] = timers [timercnt];
1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1462	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1358	}	1463	}
1359		1464
1360	((WT)w)->at -= mn_now;	1465	((WT)w)->at -= mn_now;
1361		1466
1362	ev_stop (EV_A_ (W)w);	1467	ev_stop (EV_A_ (W)w);
…		…
1366	ev_timer_again (EV_P_ struct ev_timer *w)	1471	ev_timer_again (EV_P_ struct ev_timer *w)
1367	{	1472	{
1368	if (ev_is_active (w))	1473	if (ev_is_active (w))
1369	{	1474	{
1370	if (w->repeat)	1475	if (w->repeat)
		1476	{
		1477	((WT)w)->at = mn_now + w->repeat;
1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1478	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1479	}
1372	else	1480	else
1373	ev_timer_stop (EV_A_ w);	1481	ev_timer_stop (EV_A_ w);
1374	}	1482	}
1375	else if (w->repeat)	1483	else if (w->repeat)
		1484	{
		1485	w->at = w->repeat;
1376	ev_timer_start (EV_A_ w);	1486	ev_timer_start (EV_A_ w);
		1487	}
1377	}	1488	}
1378		1489
1379	#if EV_PERIODICS	1490	#if EV_PERIODICS
1380	void	1491	void
1381	ev_periodic_start (EV_P_ struct ev_periodic *w)	1492	ev_periodic_start (EV_P_ struct ev_periodic *w)
1382	{	1493	{
1383	if (ev_is_active (w))	1494	if (expect_false (ev_is_active (w)))
1384	return;	1495	return;
1385		1496
1386	if (w->reschedule_cb)	1497	if (w->reschedule_cb)
1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1498	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1388	else if (w->interval)	1499	else if (w->interval)
…		…
1391	/* this formula differs from the one in periodic_reify because we do not always round up */	1502	/* this formula differs from the one in periodic_reify because we do not always round up */
1392	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1503	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1393	}	1504	}
1394		1505
1395	ev_start (EV_A_ (W)w, ++periodiccnt);	1506	ev_start (EV_A_ (W)w, ++periodiccnt);
1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1507	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1397	periodics [periodiccnt - 1] = w;	1508	periodics [periodiccnt - 1] = w;
1398	upheap ((WT *)periodics, periodiccnt - 1);	1509	upheap ((WT *)periodics, periodiccnt - 1);
1399		1510
1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1511	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1401	}	1512	}
1402		1513
1403	void	1514	void
1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1515	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1405	{	1516	{
1406	ev_clear_pending (EV_A_ (W)w);	1517	ev_clear_pending (EV_A_ (W)w);
1407	if (!ev_is_active (w))	1518	if (expect_false (!ev_is_active (w)))
1408	return;	1519	return;
1409		1520
1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1521	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1411		1522
1412	if (((W)w)->active < periodiccnt--)	1523	if (expect_true (((W)w)->active < periodiccnt--))
1413	{	1524	{
1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1525	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1526	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1416	}	1527	}
1417		1528
1418	ev_stop (EV_A_ (W)w);	1529	ev_stop (EV_A_ (W)w);
1419	}	1530	}
1420		1531
…		…
1428	#endif	1539	#endif
1429		1540
1430	void	1541	void
1431	ev_idle_start (EV_P_ struct ev_idle *w)	1542	ev_idle_start (EV_P_ struct ev_idle *w)
1432	{	1543	{
1433	if (ev_is_active (w))	1544	if (expect_false (ev_is_active (w)))
1434	return;	1545	return;
1435		1546
1436	ev_start (EV_A_ (W)w, ++idlecnt);	1547	ev_start (EV_A_ (W)w, ++idlecnt);
1437	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1548	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1438	idles [idlecnt - 1] = w;	1549	idles [idlecnt - 1] = w;
1439	}	1550	}
1440		1551
1441	void	1552	void
1442	ev_idle_stop (EV_P_ struct ev_idle *w)	1553	ev_idle_stop (EV_P_ struct ev_idle *w)
1443	{	1554	{
1444	ev_clear_pending (EV_A_ (W)w);	1555	ev_clear_pending (EV_A_ (W)w);
1445	if (ev_is_active (w))	1556	if (expect_false (!ev_is_active (w)))
1446	return;	1557	return;
1447		1558
1448	idles [((W)w)->active - 1] = idles [--idlecnt];	1559	idles [((W)w)->active - 1] = idles [--idlecnt];
1449	ev_stop (EV_A_ (W)w);	1560	ev_stop (EV_A_ (W)w);
1450	}	1561	}
1451		1562
1452	void	1563	void
1453	ev_prepare_start (EV_P_ struct ev_prepare *w)	1564	ev_prepare_start (EV_P_ struct ev_prepare *w)
1454	{	1565	{
1455	if (ev_is_active (w))	1566	if (expect_false (ev_is_active (w)))
1456	return;	1567	return;
1457		1568
1458	ev_start (EV_A_ (W)w, ++preparecnt);	1569	ev_start (EV_A_ (W)w, ++preparecnt);
1459	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1570	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1460	prepares [preparecnt - 1] = w;	1571	prepares [preparecnt - 1] = w;
1461	}	1572	}
1462		1573
1463	void	1574	void
1464	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1575	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1465	{	1576	{
1466	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1467	if (ev_is_active (w))	1578	if (expect_false (!ev_is_active (w)))
1468	return;	1579	return;
1469		1580
1470	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1581	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1471	ev_stop (EV_A_ (W)w);	1582	ev_stop (EV_A_ (W)w);
1472	}	1583	}
1473		1584
1474	void	1585	void
1475	ev_check_start (EV_P_ struct ev_check *w)	1586	ev_check_start (EV_P_ struct ev_check *w)
1476	{	1587	{
1477	if (ev_is_active (w))	1588	if (expect_false (ev_is_active (w)))
1478	return;	1589	return;
1479		1590
1480	ev_start (EV_A_ (W)w, ++checkcnt);	1591	ev_start (EV_A_ (W)w, ++checkcnt);
1481	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1592	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1482	checks [checkcnt - 1] = w;	1593	checks [checkcnt - 1] = w;
1483	}	1594	}
1484		1595
1485	void	1596	void
1486	ev_check_stop (EV_P_ struct ev_check *w)	1597	ev_check_stop (EV_P_ struct ev_check *w)
1487	{	1598	{
1488	ev_clear_pending (EV_A_ (W)w);	1599	ev_clear_pending (EV_A_ (W)w);
1489	if (!ev_is_active (w))	1600	if (expect_false (!ev_is_active (w)))
1490	return;	1601	return;
1491		1602
1492	checks [((W)w)->active - 1] = checks [--checkcnt];	1603	checks [((W)w)->active - 1] = checks [--checkcnt];
1493	ev_stop (EV_A_ (W)w);	1604	ev_stop (EV_A_ (W)w);
1494	}	1605	}
…		…
1499		1610
1500	void	1611	void
1501	ev_signal_start (EV_P_ struct ev_signal *w)	1612	ev_signal_start (EV_P_ struct ev_signal *w)
1502	{	1613	{
1503	#if EV_MULTIPLICITY	1614	#if EV_MULTIPLICITY
1504	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1615	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1505	#endif	1616	#endif
1506	if (ev_is_active (w))	1617	if (expect_false (ev_is_active (w)))
1507	return;	1618	return;
1508		1619
1509	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1620	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1510		1621
1511	ev_start (EV_A_ (W)w, 1);	1622	ev_start (EV_A_ (W)w, 1);
1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1623	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1624	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1514		1625
1515	if (!((WL)w)->next)	1626	if (!((WL)w)->next)
1516	{	1627	{
1517	#if WIN32	1628	#if _WIN32
1518	signal (w->signum, sighandler);	1629	signal (w->signum, sighandler);
1519	#else	1630	#else
1520	struct sigaction sa;	1631	struct sigaction sa;
1521	sa.sa_handler = sighandler;	1632	sa.sa_handler = sighandler;
1522	sigfillset (&sa.sa_mask);	1633	sigfillset (&sa.sa_mask);
…		…
1528		1639
1529	void	1640	void
1530	ev_signal_stop (EV_P_ struct ev_signal *w)	1641	ev_signal_stop (EV_P_ struct ev_signal *w)
1531	{	1642	{
1532	ev_clear_pending (EV_A_ (W)w);	1643	ev_clear_pending (EV_A_ (W)w);
1533	if (!ev_is_active (w))	1644	if (expect_false (!ev_is_active (w)))
1534	return;	1645	return;
1535		1646
1536	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1647	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1537	ev_stop (EV_A_ (W)w);	1648	ev_stop (EV_A_ (W)w);
1538		1649
…		…
1542		1653
1543	void	1654	void
1544	ev_child_start (EV_P_ struct ev_child *w)	1655	ev_child_start (EV_P_ struct ev_child *w)
1545	{	1656	{
1546	#if EV_MULTIPLICITY	1657	#if EV_MULTIPLICITY
1547	assert (("child watchers are only supported in the default loop", loop == default_loop));	1658	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1548	#endif	1659	#endif
1549	if (ev_is_active (w))	1660	if (expect_false (ev_is_active (w)))
1550	return;	1661	return;
1551		1662
1552	ev_start (EV_A_ (W)w, 1);	1663	ev_start (EV_A_ (W)w, 1);
1553	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1664	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1554	}	1665	}
1555		1666
1556	void	1667	void
1557	ev_child_stop (EV_P_ struct ev_child *w)	1668	ev_child_stop (EV_P_ struct ev_child *w)
1558	{	1669	{
1559	ev_clear_pending (EV_A_ (W)w);	1670	ev_clear_pending (EV_A_ (W)w);
1560	if (!ev_is_active (w))	1671	if (expect_false (!ev_is_active (w)))
1561	return;	1672	return;
1562		1673
1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1674	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1564	ev_stop (EV_A_ (W)w);	1675	ev_stop (EV_A_ (W)w);
1565	}	1676	}
		1677
		1678	#if EV_MULTIPLICITY
		1679	static void
		1680	embed_cb (EV_P_ struct ev_io *io, int revents)
		1681	{
		1682	struct ev_embed w = (struct ev_embed )(((char *)io) - offsetof (struct ev_embed, io));
		1683
		1684	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1685	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1686	}
		1687
		1688	void
		1689	ev_embed_start (EV_P_ struct ev_embed *w)
		1690	{
		1691	if (expect_false (ev_is_active (w)))
		1692	return;
		1693
		1694	{
		1695	struct ev_loop *loop = w->loop;
		1696	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1697	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1698	}
		1699
		1700	ev_io_start (EV_A_ &w->io);
		1701	ev_start (EV_A_ (W)w, 1);
		1702	}
		1703
		1704	void
		1705	ev_embed_stop (EV_P_ struct ev_embed *w)
		1706	{
		1707	ev_clear_pending (EV_A_ (W)w);
		1708	if (expect_false (!ev_is_active (w)))
		1709	return;
		1710
		1711	ev_io_stop (EV_A_ &w->io);
		1712	ev_stop (EV_A_ (W)w);
		1713	}
		1714	#endif
1566		1715
1567	/*****************************************************************************/	1716	/*****************************************************************************/
1568		1717
1569	struct ev_once	1718	struct ev_once
1570	{	1719	{
…		…
1602	void	1751	void
1603	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1752	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1604	{	1753	{
1605	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1754	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1606		1755
1607	if (!once)	1756	if (expect_false (!once))
		1757	{
1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1758	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1609	else	1759	return;
1610	{	1760	}
		1761
1611	once->cb = cb;	1762	once->cb = cb;
1612	once->arg = arg;	1763	once->arg = arg;
1613		1764
1614	ev_init (&once->io, once_cb_io);	1765	ev_init (&once->io, once_cb_io);
1615	if (fd >= 0)	1766	if (fd >= 0)
1616	{	1767	{
1617	ev_io_set (&once->io, fd, events);	1768	ev_io_set (&once->io, fd, events);
1618	ev_io_start (EV_A_ &once->io);	1769	ev_io_start (EV_A_ &once->io);
1619	}	1770	}
1620		1771
1621	ev_init (&once->to, once_cb_to);	1772	ev_init (&once->to, once_cb_to);
1622	if (timeout >= 0.)	1773	if (timeout >= 0.)
1623	{	1774	{
1624	ev_timer_set (&once->to, timeout, 0.);	1775	ev_timer_set (&once->to, timeout, 0.);
1625	ev_timer_start (EV_A_ &once->to);	1776	ev_timer_start (EV_A_ &once->to);
1626	}
1627	}	1777	}
1628	}	1778	}
1629		1779
1630	#ifdef __cplusplus	1780	#ifdef __cplusplus
1631	}	1781	}

Diff Legend

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

Comparing libev/ev.c (file contents): Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC vs. Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC vs.
Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC