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

Comparing libev/ev.c (file contents):
Revision 1.97 by root, Sun Nov 11 01:53:07 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
		213	#ifdef _WIN32
166	#include "ev_win32.c"	214	# include "ev_win32.c"
		215	#endif
167		216
168	/*****************************************************************************/	217	/*****************************************************************************/
169		218
170	static void (syserr_cb)(const char msg);	219	static void (syserr_cb)(const char msg);
171		220
…		…
218	typedef struct	267	typedef struct
219	{	268	{
220	WL head;	269	WL head;
221	unsigned char events;	270	unsigned char events;
222	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
223	} ANFD;	275	} ANFD;
224		276
225	typedef struct	277	typedef struct
226	{	278	{
227	W w;	279	W w;
…		…
231	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
232		284
233	struct ev_loop	285	struct ev_loop
234	{	286	{
235	ev_tstamp ev_rt_now;	287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
236	#define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
237	#include "ev_vars.h"	290	#include "ev_vars.h"
238	#undef VAR	291	#undef VAR
239	};	292	};
240	#include "ev_wrap.h"	293	#include "ev_wrap.h"
241		294
242	struct ev_loop default_loop_struct;	295	static struct ev_loop default_loop_struct;
243	static struct ev_loop *default_loop;	296	struct ev_loop *ev_default_loop_ptr;
244		297
245	#else	298	#else
246		299
247	ev_tstamp ev_rt_now;	300	ev_tstamp ev_rt_now;
248	#define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
249	#include "ev_vars.h"	302	#include "ev_vars.h"
250	#undef VAR	303	#undef VAR
251		304
252	static int default_loop;	305	static int ev_default_loop_ptr;
253		306
254	#endif	307	#endif
255		308
256	/*****************************************************************************/	309	/*****************************************************************************/
257		310
…		…
290	{	343	{
291	return ev_rt_now;	344	return ev_rt_now;
292	}	345	}
293	#endif	346	#endif
294		347
295	#define array_roundsize(type,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
296		349
297	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
298	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
299	{ \	352	{ \
300	int newcnt = cur; \	353	int newcnt = cur; \
…		…
315	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
316	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
317	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
318	}	371	}
319		372
320	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
321	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
322	#define array_free_microshit(stem) \
323	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
324
325	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
326	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;
327		375
328	/*****************************************************************************/	376	/*****************************************************************************/
329		377
…		…
343	void	391	void
344	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
345	{	393	{
346	W w_ = (W)w;	394	W w_ = (W)w;
347		395
348	if (w_->pending)	396	if (expect_false (w_->pending))
349	{	397	{
350	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
351	return;	399	return;
352	}	400	}
353		401
		402	if (expect_false (!w_->cb))
		403	return;
		404
354	w_->pending = ++pendingcnt [ABSPRI (w_)];	405	w_->pending = ++pendingcnt [ABSPRI (w_)];
355	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);
356	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	407	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
357	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	408	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
358	}	409	}
359		410
360	static void	411	static void
…		…
387	fd_event (EV_A_ fd, revents);	438	fd_event (EV_A_ fd, revents);
388	}	439	}
389		440
390	/*****************************************************************************/	441	/*****************************************************************************/
391		442
392	static void	443	inline void
393	fd_reify (EV_P)	444	fd_reify (EV_P)
394	{	445	{
395	int i;	446	int i;
396		447
397	for (i = 0; i < fdchangecnt; ++i)	448	for (i = 0; i < fdchangecnt; ++i)
…		…
403	int events = 0;	454	int events = 0;
404		455
405	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)
406	events \|= w->events;	457	events \|= w->events;
407		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
408	anfd->reify = 0;	468	anfd->reify = 0;
409		469
410	method_modify (EV_A_ fd, anfd->events, events);	470	backend_modify (EV_A_ fd, anfd->events, events);
411	anfd->events = events;	471	anfd->events = events;
412	}	472	}
413		473
414	fdchangecnt = 0;	474	fdchangecnt = 0;
415	}	475	}
416		476
417	static void	477	static void
418	fd_change (EV_P_ int fd)	478	fd_change (EV_P_ int fd)
419	{	479	{
420	if (anfds [fd].reify)	480	if (expect_false (anfds [fd].reify))
421	return;	481	return;
422		482
423	anfds [fd].reify = 1;	483	anfds [fd].reify = 1;
424		484
425	++fdchangecnt;	485	++fdchangecnt;
426	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	486	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
427	fdchanges [fdchangecnt - 1] = fd;	487	fdchanges [fdchangecnt - 1] = fd;
428	}	488	}
429		489
430	static void	490	static void
431	fd_kill (EV_P_ int fd)	491	fd_kill (EV_P_ int fd)
…		…
437	ev_io_stop (EV_A_ w);	497	ev_io_stop (EV_A_ w);
438	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);
439	}	499	}
440	}	500	}
441		501
442	static int	502	inline int
443	fd_valid (int fd)	503	fd_valid (int fd)
444	{	504	{
445	#ifdef WIN32	505	#ifdef _WIN32
446	return !!win32_get_osfhandle (fd);	506	return _get_osfhandle (fd) != -1;
447	#else	507	#else
448	return fcntl (fd, F_GETFD) != -1;	508	return fcntl (fd, F_GETFD) != -1;
449	#endif	509	#endif
450	}	510	}
451		511
…		…
473	fd_kill (EV_A_ fd);	533	fd_kill (EV_A_ fd);
474	return;	534	return;
475	}	535	}
476	}	536	}
477		537
478	/* 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 */
479	static void	539	static void
480	fd_rearm_all (EV_P)	540	fd_rearm_all (EV_P)
481	{	541	{
482	int fd;	542	int fd;
483		543
…		…
532	heap [k] = w;	592	heap [k] = w;
533	((W)heap [k])->active = k + 1;	593	((W)heap [k])->active = k + 1;
534	}	594	}
535		595
536	inline void	596	inline void
537	adjustheap (WT *heap, int N, int k, ev_tstamp at)	597	adjustheap (WT *heap, int N, int k)
538	{	598	{
539	ev_tstamp old_at = heap [k]->at;	599	upheap (heap, k);
540	heap [k]->at = at;
541
542	if (old_at < at)
543	downheap (heap, N, k);	600	downheap (heap, N, k);
544	else
545	upheap (heap, k);
546	}	601	}
547		602
548	/*****************************************************************************/	603	/*****************************************************************************/
549		604
550	typedef struct	605	typedef struct
…		…
573	}	628	}
574		629
575	static void	630	static void
576	sighandler (int signum)	631	sighandler (int signum)
577	{	632	{
578	#if WIN32	633	#if _WIN32
579	signal (signum, sighandler);	634	signal (signum, sighandler);
580	#endif	635	#endif
581		636
582	signals [signum - 1].gotsig = 1;	637	signals [signum - 1].gotsig = 1;
583		638
584	if (!gotsig)	639	if (!gotsig)
585	{	640	{
586	int old_errno = errno;	641	int old_errno = errno;
587	gotsig = 1;	642	gotsig = 1;
588	#ifdef WIN32
589	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
590	#else
591	write (sigpipe [1], &signum, 1);	643	write (sigpipe [1], &signum, 1);
592	#endif
593	errno = old_errno;	644	errno = old_errno;
594	}	645	}
595	}	646	}
596		647
597	void	648	void
598	ev_feed_signal_event (EV_P_ int signum)	649	ev_feed_signal_event (EV_P_ int signum)
599	{	650	{
600	WL w;	651	WL w;
601		652
602	#if EV_MULTIPLICITY	653	#if EV_MULTIPLICITY
603	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));
604	#endif	655	#endif
605		656
606	--signum;	657	--signum;
607		658
608	if (signum < 0 \|\| signum >= signalmax)	659	if (signum < 0 \|\| signum >= signalmax)
…		…
617	static void	668	static void
618	sigcb (EV_P_ struct ev_io *iow, int revents)	669	sigcb (EV_P_ struct ev_io *iow, int revents)
619	{	670	{
620	int signum;	671	int signum;
621		672
622	#ifdef WIN32
623	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
624	#else
625	read (sigpipe [0], &revents, 1);	673	read (sigpipe [0], &revents, 1);
626	#endif
627	gotsig = 0;	674	gotsig = 0;
628		675
629	for (signum = signalmax; signum--; )	676	for (signum = signalmax; signum--; )
630	if (signals [signum].gotsig)	677	if (signals [signum].gotsig)
631	ev_feed_signal_event (EV_A_ signum + 1);	678	ev_feed_signal_event (EV_A_ signum + 1);
632	}	679	}
633		680
634	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
635	siginit (EV_P)	694	siginit (EV_P)
636	{	695	{
637	#ifndef WIN32	696	fd_intern (sigpipe [0]);
638	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	697	fd_intern (sigpipe [1]);
639	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
640
641	/* rather than sort out wether we really need nb, set it */
642	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
643	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
644	#endif
645		698
646	ev_io_set (&sigev, sigpipe [0], EV_READ);	699	ev_io_set (&sigev, sigpipe [0], EV_READ);
647	ev_io_start (EV_A_ &sigev);	700	ev_io_start (EV_A_ &sigev);
648	ev_unref (EV_A); /* child watcher should not keep loop alive */	701	ev_unref (EV_A); /* child watcher should not keep loop alive */
649	}	702	}
650		703
651	/*****************************************************************************/	704	/*****************************************************************************/
652		705
653	static struct ev_child *childs [PID_HASHSIZE];	706	static struct ev_child *childs [PID_HASHSIZE];
654		707
655	#ifndef WIN32	708	#ifndef _WIN32
656		709
657	static struct ev_signal childev;	710	static struct ev_signal childev;
658		711
659	#ifndef WCONTINUED	712	#ifndef WCONTINUED
660	# define WCONTINUED 0	713	# define WCONTINUED 0
…		…
681	int pid, status;	734	int pid, status;
682		735
683	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	736	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
684	{	737	{
685	/* 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 */
686	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	740	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
687		741
688	child_reap (EV_A_ sw, pid, pid, status);	742	child_reap (EV_A_ sw, pid, pid, status);
689	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 */
690	}	744	}
691	}	745	}
692		746
693	#endif	747	#endif
694		748
695	/*****************************************************************************/	749	/*****************************************************************************/
696		750
		751	#if EV_USE_PORT
		752	# include "ev_port.c"
		753	#endif
697	#if EV_USE_KQUEUE	754	#if EV_USE_KQUEUE
698	# include "ev_kqueue.c"	755	# include "ev_kqueue.c"
699	#endif	756	#endif
700	#if EV_USE_EPOLL	757	#if EV_USE_EPOLL
701	# include "ev_epoll.c"	758	# include "ev_epoll.c"
…		…
721		778
722	/* 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 */
723	static int	780	static int
724	enable_secure (void)	781	enable_secure (void)
725	{	782	{
726	#ifdef WIN32	783	#ifdef _WIN32
727	return 0;	784	return 0;
728	#else	785	#else
729	return getuid () != geteuid ()	786	return getuid () != geteuid ()
730	\|\| getgid () != getegid ();	787	\|\| getgid () != getegid ();
731	#endif	788	#endif
732	}	789	}
733		790
734	int	791	unsigned int
735	ev_method (EV_P)	792	ev_supported_backends (void)
736	{	793	{
737	return method;	794	unsigned int flags = 0;
738	}
739		795
740	static void	796	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
741	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)
742	{	807	{
743	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)
744	{	841	{
745	#if EV_USE_MONOTONIC	842	#if EV_USE_MONOTONIC
746	{	843	{
747	struct timespec ts;	844	struct timespec ts;
748	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	845	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
753	ev_rt_now = ev_time ();	850	ev_rt_now = ev_time ();
754	mn_now = get_clock ();	851	mn_now = get_clock ();
755	now_floor = mn_now;	852	now_floor = mn_now;
756	rtmn_diff = ev_rt_now - mn_now;	853	rtmn_diff = ev_rt_now - mn_now;
757		854
758	if (methods == EVMETHOD_AUTO)	855	if (!(flags & EVFLAG_NOENV)
759	if (!enable_secure () && getenv ("LIBEV_METHODS"))	856	&& !enable_secure ()
		857	&& getenv ("LIBEV_FLAGS"))
760	methods = atoi (getenv ("LIBEV_METHODS"));	858	flags = atoi (getenv ("LIBEV_FLAGS"));
761	else
762	methods = EVMETHOD_ANY;
763		859
764	method = 0;	860	if (!(flags & 0x0000ffffUL))
765	#if EV_USE_WIN32	861	flags \|= ev_recommended_backends ();
766	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);
767	#endif	866	#endif
768	#if EV_USE_KQUEUE	867	#if EV_USE_KQUEUE
769	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
770	#endif	869	#endif
771	#if EV_USE_EPOLL	870	#if EV_USE_EPOLL
772	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
773	#endif	872	#endif
774	#if EV_USE_POLL	873	#if EV_USE_POLL
775	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
776	#endif	875	#endif
777	#if EV_USE_SELECT	876	#if EV_USE_SELECT
778	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	877	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
779	#endif	878	#endif
780		879
781	ev_init (&sigev, sigcb);	880	ev_init (&sigev, sigcb);
782	ev_set_priority (&sigev, EV_MAXPRI);	881	ev_set_priority (&sigev, EV_MAXPRI);
783	}	882	}
784	}	883	}
785		884
786	void	885	static void
787	loop_destroy (EV_P)	886	loop_destroy (EV_P)
788	{	887	{
789	int i;	888	int i;
790		889
791	#if EV_USE_WIN32	890	#if EV_USE_PORT
792	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	891	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
793	#endif	892	#endif
794	#if EV_USE_KQUEUE	893	#if EV_USE_KQUEUE
795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	894	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
796	#endif	895	#endif
797	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	897	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
799	#endif	898	#endif
800	#if EV_USE_POLL	899	#if EV_USE_POLL
801	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	900	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
802	#endif	901	#endif
803	#if EV_USE_SELECT	902	#if EV_USE_SELECT
804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	903	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
805	#endif	904	#endif
806		905
807	for (i = NUMPRI; i--; )	906	for (i = NUMPRI; i--; )
808	array_free (pending, [i]);	907	array_free (pending, [i]);
809		908
810	/* have to use the microsoft-never-gets-it-right macro */	909	/* have to use the microsoft-never-gets-it-right macro */
811	array_free_microshit (fdchange);	910	array_free (fdchange, EMPTY0);
812	array_free_microshit (timer);	911	array_free (timer, EMPTY0);
813	#if EV_PERIODICS	912	#if EV_PERIODICS
814	array_free_microshit (periodic);	913	array_free (periodic, EMPTY0);
815	#endif	914	#endif
816	array_free_microshit (idle);	915	array_free (idle, EMPTY0);
817	array_free_microshit (prepare);	916	array_free (prepare, EMPTY0);
818	array_free_microshit (check);	917	array_free (check, EMPTY0);
819		918
820	method = 0;	919	backend = 0;
821	}	920	}
822		921
823	static void	922	static void
824	loop_fork (EV_P)	923	loop_fork (EV_P)
825	{	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
826	#if EV_USE_EPOLL	931	#if EV_USE_EPOLL
827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	932	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
828	#endif
829	#if EV_USE_KQUEUE
830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
831	#endif	933	#endif
832		934
833	if (ev_is_active (&sigev))	935	if (ev_is_active (&sigev))
834	{	936	{
835	/* default loop */	937	/* default loop */
…		…
848	postfork = 0;	950	postfork = 0;
849	}	951	}
850		952
851	#if EV_MULTIPLICITY	953	#if EV_MULTIPLICITY
852	struct ev_loop *	954	struct ev_loop *
853	ev_loop_new (int methods)	955	ev_loop_new (unsigned int flags)
854	{	956	{
855	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));
856		958
857	memset (loop, 0, sizeof (struct ev_loop));	959	memset (loop, 0, sizeof (struct ev_loop));
858		960
859	loop_init (EV_A_ methods);	961	loop_init (EV_A_ flags);
860		962
861	if (ev_method (EV_A))	963	if (ev_backend (EV_A))
862	return loop;	964	return loop;
863		965
864	return 0;	966	return 0;
865	}	967	}
866		968
…		…
879		981
880	#endif	982	#endif
881		983
882	#if EV_MULTIPLICITY	984	#if EV_MULTIPLICITY
883	struct ev_loop *	985	struct ev_loop *
		986	ev_default_loop_init (unsigned int flags)
884	#else	987	#else
885	int	988	int
		989	ev_default_loop (unsigned int flags)
886	#endif	990	#endif
887	ev_default_loop (int methods)
888	{	991	{
889	if (sigpipe [0] == sigpipe [1])	992	if (sigpipe [0] == sigpipe [1])
890	if (pipe (sigpipe))	993	if (pipe (sigpipe))
891	return 0;	994	return 0;
892		995
893	if (!default_loop)	996	if (!ev_default_loop_ptr)
894	{	997	{
895	#if EV_MULTIPLICITY	998	#if EV_MULTIPLICITY
896	struct ev_loop *loop = default_loop = &default_loop_struct;	999	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
897	#else	1000	#else
898	default_loop = 1;	1001	ev_default_loop_ptr = 1;
899	#endif	1002	#endif
900		1003
901	loop_init (EV_A_ methods);	1004	loop_init (EV_A_ flags);
902		1005
903	if (ev_method (EV_A))	1006	if (ev_backend (EV_A))
904	{	1007	{
905	siginit (EV_A);	1008	siginit (EV_A);
906		1009
907	#ifndef WIN32	1010	#ifndef _WIN32
908	ev_signal_init (&childev, childcb, SIGCHLD);	1011	ev_signal_init (&childev, childcb, SIGCHLD);
909	ev_set_priority (&childev, EV_MAXPRI);	1012	ev_set_priority (&childev, EV_MAXPRI);
910	ev_signal_start (EV_A_ &childev);	1013	ev_signal_start (EV_A_ &childev);
911	ev_unref (EV_A); /* child watcher should not keep loop alive */	1014	ev_unref (EV_A); /* child watcher should not keep loop alive */
912	#endif	1015	#endif
913	}	1016	}
914	else	1017	else
915	default_loop = 0;	1018	ev_default_loop_ptr = 0;
916	}	1019	}
917		1020
918	return default_loop;	1021	return ev_default_loop_ptr;
919	}	1022	}
920		1023
921	void	1024	void
922	ev_default_destroy (void)	1025	ev_default_destroy (void)
923	{	1026	{
924	#if EV_MULTIPLICITY	1027	#if EV_MULTIPLICITY
925	struct ev_loop *loop = default_loop;	1028	struct ev_loop *loop = ev_default_loop_ptr;
926	#endif	1029	#endif
927		1030
928	#ifndef WIN32	1031	#ifndef _WIN32
929	ev_ref (EV_A); /* child watcher */	1032	ev_ref (EV_A); /* child watcher */
930	ev_signal_stop (EV_A_ &childev);	1033	ev_signal_stop (EV_A_ &childev);
931	#endif	1034	#endif
932		1035
933	ev_ref (EV_A); /* signal watcher */	1036	ev_ref (EV_A); /* signal watcher */
…		…
941		1044
942	void	1045	void
943	ev_default_fork (void)	1046	ev_default_fork (void)
944	{	1047	{
945	#if EV_MULTIPLICITY	1048	#if EV_MULTIPLICITY
946	struct ev_loop *loop = default_loop;	1049	struct ev_loop *loop = ev_default_loop_ptr;
947	#endif	1050	#endif
948		1051
949	if (method)	1052	if (backend)
950	postfork = 1;	1053	postfork = 1;
951	}	1054	}
952		1055
953	/*****************************************************************************/	1056	/*****************************************************************************/
954		1057
…		…
962	return 1;	1065	return 1;
963		1066
964	return 0;	1067	return 0;
965	}	1068	}
966		1069
967	static void	1070	inline void
968	call_pending (EV_P)	1071	call_pending (EV_P)
969	{	1072	{
970	int pri;	1073	int pri;
971		1074
972	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
973	while (pendingcnt [pri])	1076	while (pendingcnt [pri])
974	{	1077	{
975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1078	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
976		1079
977	if (p->w)	1080	if (expect_true (p->w))
978	{	1081	{
979	p->w->pending = 0;	1082	p->w->pending = 0;
980	EV_CB_INVOKE (p->w, p->events);	1083	EV_CB_INVOKE (p->w, p->events);
981	}	1084	}
982	}	1085	}
983	}	1086	}
984		1087
985	static void	1088	inline void
986	timers_reify (EV_P)	1089	timers_reify (EV_P)
987	{	1090	{
988	while (timercnt && ((WT)timers [0])->at <= mn_now)	1091	while (timercnt && ((WT)timers [0])->at <= mn_now)
989	{	1092	{
990	struct ev_timer *w = timers [0];	1093	struct ev_timer *w = timers [0];
…		…
1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1111	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1009	}	1112	}
1010	}	1113	}
1011		1114
1012	#if EV_PERIODICS	1115	#if EV_PERIODICS
1013	static void	1116	inline void
1014	periodics_reify (EV_P)	1117	periodics_reify (EV_P)
1015	{	1118	{
1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1119	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1017	{	1120	{
1018	struct ev_periodic *w = periodics [0];	1121	struct ev_periodic *w = periodics [0];
…		…
1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1123	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1021		1124
1022	/* first reschedule or stop timer */	1125	/* first reschedule or stop timer */
1023	if (w->reschedule_cb)	1126	if (w->reschedule_cb)
1024	{	1127	{
1025	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);
1026
1027	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));
1028	downheap ((WT *)periodics, periodiccnt, 0);	1130	downheap ((WT *)periodics, periodiccnt, 0);
1029	}	1131	}
1030	else if (w->interval)	1132	else if (w->interval)
1031	{	1133	{
…		…
1078	ev_rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
1079	return 1;	1181	return 1;
1080	}	1182	}
1081	}	1183	}
1082		1184
1083	static void	1185	inline void
1084	time_update (EV_P)	1186	time_update (EV_P)
1085	{	1187	{
1086	int i;	1188	int i;
1087		1189
1088	#if EV_USE_MONOTONIC	1190	#if EV_USE_MONOTONIC
…		…
1146	static int loop_done;	1248	static int loop_done;
1147		1249
1148	void	1250	void
1149	ev_loop (EV_P_ int flags)	1251	ev_loop (EV_P_ int flags)
1150	{	1252	{
1151	double block;
1152	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1253	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1254	? EVUNLOOP_ONE
		1255	: EVUNLOOP_CANCEL;
1153		1256
1154	do	1257	while (activecnt)
1155	{	1258	{
1156	/* queue check watchers (and execute them) */	1259	/* queue check watchers (and execute them) */
1157	if (expect_false (preparecnt))	1260	if (expect_false (preparecnt))
1158	{	1261	{
1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1262	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1166		1269
1167	/* update fd-related kernel structures */	1270	/* update fd-related kernel structures */
1168	fd_reify (EV_A);	1271	fd_reify (EV_A);
1169		1272
1170	/* calculate blocking time */	1273	/* calculate blocking time */
		1274	{
		1275	double block;
1171		1276
1172	/* we only need this for !monotonic clock or timers, but as we basically	1277	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1173	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 */
1174	#if EV_USE_MONOTONIC	1282	#if EV_USE_MONOTONIC
1175	if (expect_true (have_monotonic))	1283	if (expect_true (have_monotonic))
1176	time_update_monotonic (EV_A);	1284	time_update_monotonic (EV_A);
1177	else	1285	else
1178	#endif	1286	#endif
1179	{	1287	{
1180	ev_rt_now = ev_time ();	1288	ev_rt_now = ev_time ();
1181	mn_now = ev_rt_now;	1289	mn_now = ev_rt_now;
1182	}	1290	}
1183		1291
1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1185	block = 0.;
1186	else
1187	{
1188	block = MAX_BLOCKTIME;	1292	block = MAX_BLOCKTIME;
1189		1293
1190	if (timercnt)	1294	if (timercnt)
1191	{	1295	{
1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1296	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1193	if (block > to) block = to;	1297	if (block > to) block = to;
1194	}	1298	}
1195		1299
1196	#if EV_PERIODICS	1300	#if EV_PERIODICS
1197	if (periodiccnt)	1301	if (periodiccnt)
1198	{	1302	{
1199	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;
1200	if (block > to) block = to;	1304	if (block > to) block = to;
1201	}	1305	}
1202	#endif	1306	#endif
1203		1307
1204	if (block < 0.) block = 0.;	1308	if (expect_false (block < 0.)) block = 0.;
1205	}	1309	}
1206		1310
1207	method_poll (EV_A_ block);	1311	backend_poll (EV_A_ block);
		1312	}
1208		1313
1209	/* update ev_rt_now, do magic */	1314	/* update ev_rt_now, do magic */
1210	time_update (EV_A);	1315	time_update (EV_A);
1211		1316
1212	/* queue pending timers and reschedule them */	1317	/* queue pending timers and reschedule them */
…		…
1218	/* queue idle watchers unless io or timers are pending */	1323	/* queue idle watchers unless io or timers are pending */
1219	if (idlecnt && !any_pending (EV_A))	1324	if (idlecnt && !any_pending (EV_A))
1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1325	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1221		1326
1222	/* queue check watchers, to be executed first */	1327	/* queue check watchers, to be executed first */
1223	if (checkcnt)	1328	if (expect_false (checkcnt))
1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1329	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1225		1330
1226	call_pending (EV_A);	1331	call_pending (EV_A);
1227	}
1228	while (activecnt && !loop_done);
1229		1332
1230	if (loop_done != 2)	1333	if (expect_false (loop_done))
1231	loop_done = 0;	1334	break;
		1335	}
		1336
		1337	if (loop_done == EVUNLOOP_ONE)
		1338	loop_done = EVUNLOOP_CANCEL;
1232	}	1339	}
1233		1340
1234	void	1341	void
1235	ev_unloop (EV_P_ int how)	1342	ev_unloop (EV_P_ int how)
1236	{	1343	{
…		…
1293	void	1400	void
1294	ev_io_start (EV_P_ struct ev_io *w)	1401	ev_io_start (EV_P_ struct ev_io *w)
1295	{	1402	{
1296	int fd = w->fd;	1403	int fd = w->fd;
1297		1404
1298	if (ev_is_active (w))	1405	if (expect_false (ev_is_active (w)))
1299	return;	1406	return;
1300		1407
1301	assert (("ev_io_start called with negative fd", fd >= 0));	1408	assert (("ev_io_start called with negative fd", fd >= 0));
1302		1409
1303	ev_start (EV_A_ (W)w, 1);	1410	ev_start (EV_A_ (W)w, 1);
…		…
1309		1416
1310	void	1417	void
1311	ev_io_stop (EV_P_ struct ev_io *w)	1418	ev_io_stop (EV_P_ struct ev_io *w)
1312	{	1419	{
1313	ev_clear_pending (EV_A_ (W)w);	1420	ev_clear_pending (EV_A_ (W)w);
1314	if (!ev_is_active (w))	1421	if (expect_false (!ev_is_active (w)))
1315	return;	1422	return;
1316		1423
1317	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));
1318		1425
1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1426	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1323	}	1430	}
1324		1431
1325	void	1432	void
1326	ev_timer_start (EV_P_ struct ev_timer *w)	1433	ev_timer_start (EV_P_ struct ev_timer *w)
1327	{	1434	{
1328	if (ev_is_active (w))	1435	if (expect_false (ev_is_active (w)))
1329	return;	1436	return;
1330		1437
1331	((WT)w)->at += mn_now;	1438	((WT)w)->at += mn_now;
1332		1439
1333	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.));
1334		1441
1335	ev_start (EV_A_ (W)w, ++timercnt);	1442	ev_start (EV_A_ (W)w, ++timercnt);
1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1443	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1337	timers [timercnt - 1] = w;	1444	timers [timercnt - 1] = w;
1338	upheap ((WT *)timers, timercnt - 1);	1445	upheap ((WT *)timers, timercnt - 1);
1339		1446
1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1447	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1341	}	1448	}
1342		1449
1343	void	1450	void
1344	ev_timer_stop (EV_P_ struct ev_timer *w)	1451	ev_timer_stop (EV_P_ struct ev_timer *w)
1345	{	1452	{
1346	ev_clear_pending (EV_A_ (W)w);	1453	ev_clear_pending (EV_A_ (W)w);
1347	if (!ev_is_active (w))	1454	if (expect_false (!ev_is_active (w)))
1348	return;	1455	return;
1349		1456
1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1457	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1351		1458
1352	if (((W)w)->active < timercnt--)	1459	if (expect_true (((W)w)->active < timercnt--))
1353	{	1460	{
1354	timers [((W)w)->active - 1] = timers [timercnt];	1461	timers [((W)w)->active - 1] = timers [timercnt];
1355	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1462	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1356	}	1463	}
1357		1464
1358	((WT)w)->at -= mn_now;	1465	((WT)w)->at -= mn_now;
1359		1466
1360	ev_stop (EV_A_ (W)w);	1467	ev_stop (EV_A_ (W)w);
…		…
1364	ev_timer_again (EV_P_ struct ev_timer *w)	1471	ev_timer_again (EV_P_ struct ev_timer *w)
1365	{	1472	{
1366	if (ev_is_active (w))	1473	if (ev_is_active (w))
1367	{	1474	{
1368	if (w->repeat)	1475	if (w->repeat)
		1476	{
		1477	((WT)w)->at = mn_now + w->repeat;
1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1478	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1479	}
1370	else	1480	else
1371	ev_timer_stop (EV_A_ w);	1481	ev_timer_stop (EV_A_ w);
1372	}	1482	}
1373	else if (w->repeat)	1483	else if (w->repeat)
		1484	{
		1485	w->at = w->repeat;
1374	ev_timer_start (EV_A_ w);	1486	ev_timer_start (EV_A_ w);
		1487	}
1375	}	1488	}
1376		1489
1377	#if EV_PERIODICS	1490	#if EV_PERIODICS
1378	void	1491	void
1379	ev_periodic_start (EV_P_ struct ev_periodic *w)	1492	ev_periodic_start (EV_P_ struct ev_periodic *w)
1380	{	1493	{
1381	if (ev_is_active (w))	1494	if (expect_false (ev_is_active (w)))
1382	return;	1495	return;
1383		1496
1384	if (w->reschedule_cb)	1497	if (w->reschedule_cb)
1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1498	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1386	else if (w->interval)	1499	else if (w->interval)
…		…
1389	/* 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 */
1390	((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;
1391	}	1504	}
1392		1505
1393	ev_start (EV_A_ (W)w, ++periodiccnt);	1506	ev_start (EV_A_ (W)w, ++periodiccnt);
1394	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1507	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1395	periodics [periodiccnt - 1] = w;	1508	periodics [periodiccnt - 1] = w;
1396	upheap ((WT *)periodics, periodiccnt - 1);	1509	upheap ((WT *)periodics, periodiccnt - 1);
1397		1510
1398	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1511	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1399	}	1512	}
1400		1513
1401	void	1514	void
1402	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1515	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1403	{	1516	{
1404	ev_clear_pending (EV_A_ (W)w);	1517	ev_clear_pending (EV_A_ (W)w);
1405	if (!ev_is_active (w))	1518	if (expect_false (!ev_is_active (w)))
1406	return;	1519	return;
1407		1520
1408	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1521	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1409		1522
1410	if (((W)w)->active < periodiccnt--)	1523	if (expect_true (((W)w)->active < periodiccnt--))
1411	{	1524	{
1412	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1525	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1413	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1526	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1414	}	1527	}
1415		1528
1416	ev_stop (EV_A_ (W)w);	1529	ev_stop (EV_A_ (W)w);
1417	}	1530	}
1418		1531
…		…
1426	#endif	1539	#endif
1427		1540
1428	void	1541	void
1429	ev_idle_start (EV_P_ struct ev_idle *w)	1542	ev_idle_start (EV_P_ struct ev_idle *w)
1430	{	1543	{
1431	if (ev_is_active (w))	1544	if (expect_false (ev_is_active (w)))
1432	return;	1545	return;
1433		1546
1434	ev_start (EV_A_ (W)w, ++idlecnt);	1547	ev_start (EV_A_ (W)w, ++idlecnt);
1435	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1548	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1436	idles [idlecnt - 1] = w;	1549	idles [idlecnt - 1] = w;
1437	}	1550	}
1438		1551
1439	void	1552	void
1440	ev_idle_stop (EV_P_ struct ev_idle *w)	1553	ev_idle_stop (EV_P_ struct ev_idle *w)
1441	{	1554	{
1442	ev_clear_pending (EV_A_ (W)w);	1555	ev_clear_pending (EV_A_ (W)w);
1443	if (ev_is_active (w))	1556	if (expect_false (!ev_is_active (w)))
1444	return;	1557	return;
1445		1558
1446	idles [((W)w)->active - 1] = idles [--idlecnt];	1559	idles [((W)w)->active - 1] = idles [--idlecnt];
1447	ev_stop (EV_A_ (W)w);	1560	ev_stop (EV_A_ (W)w);
1448	}	1561	}
1449		1562
1450	void	1563	void
1451	ev_prepare_start (EV_P_ struct ev_prepare *w)	1564	ev_prepare_start (EV_P_ struct ev_prepare *w)
1452	{	1565	{
1453	if (ev_is_active (w))	1566	if (expect_false (ev_is_active (w)))
1454	return;	1567	return;
1455		1568
1456	ev_start (EV_A_ (W)w, ++preparecnt);	1569	ev_start (EV_A_ (W)w, ++preparecnt);
1457	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1570	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1458	prepares [preparecnt - 1] = w;	1571	prepares [preparecnt - 1] = w;
1459	}	1572	}
1460		1573
1461	void	1574	void
1462	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1575	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1463	{	1576	{
1464	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1465	if (ev_is_active (w))	1578	if (expect_false (!ev_is_active (w)))
1466	return;	1579	return;
1467		1580
1468	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1581	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1469	ev_stop (EV_A_ (W)w);	1582	ev_stop (EV_A_ (W)w);
1470	}	1583	}
1471		1584
1472	void	1585	void
1473	ev_check_start (EV_P_ struct ev_check *w)	1586	ev_check_start (EV_P_ struct ev_check *w)
1474	{	1587	{
1475	if (ev_is_active (w))	1588	if (expect_false (ev_is_active (w)))
1476	return;	1589	return;
1477		1590
1478	ev_start (EV_A_ (W)w, ++checkcnt);	1591	ev_start (EV_A_ (W)w, ++checkcnt);
1479	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1592	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1480	checks [checkcnt - 1] = w;	1593	checks [checkcnt - 1] = w;
1481	}	1594	}
1482		1595
1483	void	1596	void
1484	ev_check_stop (EV_P_ struct ev_check *w)	1597	ev_check_stop (EV_P_ struct ev_check *w)
1485	{	1598	{
1486	ev_clear_pending (EV_A_ (W)w);	1599	ev_clear_pending (EV_A_ (W)w);
1487	if (!ev_is_active (w))	1600	if (expect_false (!ev_is_active (w)))
1488	return;	1601	return;
1489		1602
1490	checks [((W)w)->active - 1] = checks [--checkcnt];	1603	checks [((W)w)->active - 1] = checks [--checkcnt];
1491	ev_stop (EV_A_ (W)w);	1604	ev_stop (EV_A_ (W)w);
1492	}	1605	}
…		…
1497		1610
1498	void	1611	void
1499	ev_signal_start (EV_P_ struct ev_signal *w)	1612	ev_signal_start (EV_P_ struct ev_signal *w)
1500	{	1613	{
1501	#if EV_MULTIPLICITY	1614	#if EV_MULTIPLICITY
1502	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));
1503	#endif	1616	#endif
1504	if (ev_is_active (w))	1617	if (expect_false (ev_is_active (w)))
1505	return;	1618	return;
1506		1619
1507	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));
1508		1621
1509	ev_start (EV_A_ (W)w, 1);	1622	ev_start (EV_A_ (W)w, 1);
1510	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1623	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1511	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1624	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1512		1625
1513	if (!((WL)w)->next)	1626	if (!((WL)w)->next)
1514	{	1627	{
1515	#if WIN32	1628	#if _WIN32
1516	signal (w->signum, sighandler);	1629	signal (w->signum, sighandler);
1517	#else	1630	#else
1518	struct sigaction sa;	1631	struct sigaction sa;
1519	sa.sa_handler = sighandler;	1632	sa.sa_handler = sighandler;
1520	sigfillset (&sa.sa_mask);	1633	sigfillset (&sa.sa_mask);
…		…
1526		1639
1527	void	1640	void
1528	ev_signal_stop (EV_P_ struct ev_signal *w)	1641	ev_signal_stop (EV_P_ struct ev_signal *w)
1529	{	1642	{
1530	ev_clear_pending (EV_A_ (W)w);	1643	ev_clear_pending (EV_A_ (W)w);
1531	if (!ev_is_active (w))	1644	if (expect_false (!ev_is_active (w)))
1532	return;	1645	return;
1533		1646
1534	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1647	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1535	ev_stop (EV_A_ (W)w);	1648	ev_stop (EV_A_ (W)w);
1536		1649
…		…
1540		1653
1541	void	1654	void
1542	ev_child_start (EV_P_ struct ev_child *w)	1655	ev_child_start (EV_P_ struct ev_child *w)
1543	{	1656	{
1544	#if EV_MULTIPLICITY	1657	#if EV_MULTIPLICITY
1545	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));
1546	#endif	1659	#endif
1547	if (ev_is_active (w))	1660	if (expect_false (ev_is_active (w)))
1548	return;	1661	return;
1549		1662
1550	ev_start (EV_A_ (W)w, 1);	1663	ev_start (EV_A_ (W)w, 1);
1551	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1664	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1552	}	1665	}
1553		1666
1554	void	1667	void
1555	ev_child_stop (EV_P_ struct ev_child *w)	1668	ev_child_stop (EV_P_ struct ev_child *w)
1556	{	1669	{
1557	ev_clear_pending (EV_A_ (W)w);	1670	ev_clear_pending (EV_A_ (W)w);
1558	if (!ev_is_active (w))	1671	if (expect_false (!ev_is_active (w)))
1559	return;	1672	return;
1560		1673
1561	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1674	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1562	ev_stop (EV_A_ (W)w);	1675	ev_stop (EV_A_ (W)w);
1563	}	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
1564		1715
1565	/*****************************************************************************/	1716	/*****************************************************************************/
1566		1717
1567	struct ev_once	1718	struct ev_once
1568	{	1719	{
…		…
1600	void	1751	void
1601	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)
1602	{	1753	{
1603	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));
1604		1755
1605	if (!once)	1756	if (expect_false (!once))
		1757	{
1606	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1758	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1607	else	1759	return;
1608	{	1760	}
		1761
1609	once->cb = cb;	1762	once->cb = cb;
1610	once->arg = arg;	1763	once->arg = arg;
1611		1764
1612	ev_init (&once->io, once_cb_io);	1765	ev_init (&once->io, once_cb_io);
1613	if (fd >= 0)	1766	if (fd >= 0)
1614	{	1767	{
1615	ev_io_set (&once->io, fd, events);	1768	ev_io_set (&once->io, fd, events);
1616	ev_io_start (EV_A_ &once->io);	1769	ev_io_start (EV_A_ &once->io);
1617	}	1770	}
1618		1771
1619	ev_init (&once->to, once_cb_to);	1772	ev_init (&once->to, once_cb_to);
1620	if (timeout >= 0.)	1773	if (timeout >= 0.)
1621	{	1774	{
1622	ev_timer_set (&once->to, timeout, 0.);	1775	ev_timer_set (&once->to, timeout, 0.);
1623	ev_timer_start (EV_A_ &once->to);	1776	ev_timer_start (EV_A_ &once->to);
1624	}
1625	}	1777	}
1626	}	1778	}
1627		1779
1628	#ifdef __cplusplus	1780	#ifdef __cplusplus
1629	}	1781	}

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Comparing libev/ev.c (file contents): Revision 1.97 by root, Sun Nov 11 01:53:07 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 1.97 by root, Sun Nov 11 01:53:07 2007 UTC vs.
Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC