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

Comparing libev/ev.c (file contents):
Revision 1.100 by root, Sun Nov 11 04:02:54 2007 UTC vs.
Revision 1.134 by root, Fri Nov 23 19:13:33 2007 UTC

…		…
32	#ifdef __cplusplus	32	#ifdef __cplusplus
33	extern "C" {	33	extern "C" {
34	#endif	34	#endif
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
37	# include "config.h"	40	# include "config.h"
		41	# endif
38		42
39	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
40	# ifndef EV_USE_MONOTONIC	44	# ifndef EV_USE_MONOTONIC
41	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
42	# endif	46	# endif
43	# ifndef EV_USE_REALTIME	47	# ifndef EV_USE_REALTIME
44	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
45	# endif	49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
46	# endif	57	# endif
47		58
48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)	59	# ifndef EV_USE_SELECT
		60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
49	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
50	# endif	65	# endif
51		66
52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)	67	# ifndef EV_USE_POLL
		68	# if HAVE_POLL && HAVE_POLL_H
53	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
54	# endif	73	# endif
55		74
56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)	75	# ifndef EV_USE_EPOLL
		76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
57	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
58	# endif	81	# endif
59		82
		83	# ifndef EV_USE_KQUEUE
60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
61	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
		89	# endif
		90
		91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
		93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
62	# endif	97	# endif
63		98
64	#endif	99	#endif
65		100
66	#include <math.h>	101	#include <math.h>
…		…
75	#include <sys/types.h>	110	#include <sys/types.h>
76	#include <time.h>	111	#include <time.h>
77		112
78	#include <signal.h>	113	#include <signal.h>
79		114
80	#ifndef WIN32	115	#ifndef _WIN32
81	# include <unistd.h>	116	# include <unistd.h>
82	# include <sys/time.h>	117	# include <sys/time.h>
83	# include <sys/wait.h>	118	# include <sys/wait.h>
		119	#else
		120	# define WIN32_LEAN_AND_MEAN
		121	# include <windows.h>
		122	# ifndef EV_SELECT_IS_WINSOCKET
		123	# define EV_SELECT_IS_WINSOCKET 1
84	#endif	124	# endif
		125	#endif
		126
85	/**/	127	/**/
86		128
87	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
88	# define EV_USE_MONOTONIC 1	130	# define EV_USE_MONOTONIC 0
		131	#endif
		132
		133	#ifndef EV_USE_REALTIME
		134	# define EV_USE_REALTIME 0
89	#endif	135	#endif
90		136
91	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
92	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
93	#endif	139	#endif
94		140
95	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	142	# ifdef _WIN32
		143	# define EV_USE_POLL 0
		144	# else
		145	# define EV_USE_POLL 1
		146	# endif
97	#endif	147	#endif
98		148
99	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
100	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
101	#endif	151	#endif
102		152
103	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
104	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
105	#endif	155	#endif
106		156
107	#ifndef EV_USE_WIN32
108	# ifdef WIN32
109	# define EV_USE_WIN32 0 /* it does not exist, use select */
110	# undef EV_USE_SELECT
111	# define EV_USE_SELECT 1
112	# else
113	# define EV_USE_WIN32 0
114	# endif
115	#endif
116
117	#ifndef EV_USE_REALTIME	157	#ifndef EV_USE_PORT
118	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
119	#endif	159	#endif
120		160
121	/**/	161	/**/
122		162
123	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
128	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
129	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
130	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
131	#endif	171	#endif
132		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
133	/**/	177	/**/
134		178
135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	179	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	180	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	181	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	182	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
139		183
140	#ifdef EV_H	184	#ifdef EV_H
141	# include EV_H	185	# include EV_H
142	#else	186	#else
143	# include "ev.h"	187	# include "ev.h"
144	#endif	188	#endif
145		189
146	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
147	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
148	# define inline inline	192	# define inline static inline
149	#else	193	#else
150	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
151	# define inline static	195	# define inline static
152	#endif	196	#endif
153		197
…		…
155	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
156		200
157	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
158	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
159		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
160	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
161	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
162	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
163		210
164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
165		212
166	#ifdef WIN32	213	#ifdef _WIN32
167	# include "ev_win32.c"	214	# include "ev_win32.c"
168	#endif	215	#endif
169		216
170	/*****************************************************************************/	217	/*****************************************************************************/
171		218
…		…
220	typedef struct	267	typedef struct
221	{	268	{
222	WL head;	269	WL head;
223	unsigned char events;	270	unsigned char events;
224	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
225	} ANFD;	275	} ANFD;
226		276
227	typedef struct	277	typedef struct
228	{	278	{
229	W w;	279	W w;
…		…
240	#include "ev_vars.h"	290	#include "ev_vars.h"
241	#undef VAR	291	#undef VAR
242	};	292	};
243	#include "ev_wrap.h"	293	#include "ev_wrap.h"
244		294
245	struct ev_loop default_loop_struct;	295	static struct ev_loop default_loop_struct;
246	static struct ev_loop *default_loop;	296	struct ev_loop *ev_default_loop_ptr;
247		297
248	#else	298	#else
249		299
250	ev_tstamp ev_rt_now;	300	ev_tstamp ev_rt_now;
251	#define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
252	#include "ev_vars.h"	302	#include "ev_vars.h"
253	#undef VAR	303	#undef VAR
254		304
255	static int default_loop;	305	static int ev_default_loop_ptr;
256		306
257	#endif	307	#endif
258		308
259	/*****************************************************************************/	309	/*****************************************************************************/
260		310
…		…
293	{	343	{
294	return ev_rt_now;	344	return ev_rt_now;
295	}	345	}
296	#endif	346	#endif
297		347
298	#define array_roundsize(type,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
299		349
300	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
301	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
302	{ \	352	{ \
303	int newcnt = cur; \	353	int newcnt = cur; \
…		…
318	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
319	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
320	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
321	}	371	}
322		372
323	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
324	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
325	#define array_free_microshit(stem) \
326	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
327
328	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
329	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
330		375
331	/*****************************************************************************/	376	/*****************************************************************************/
332		377
…		…
346	void	391	void
347	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
348	{	393	{
349	W w_ = (W)w;	394	W w_ = (W)w;
350		395
351	if (w_->pending)	396	if (expect_false (w_->pending))
352	{	397	{
353	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
354	return;	399	return;
355	}	400	}
356		401
		402	if (expect_false (!w_->cb))
		403	return;
		404
357	w_->pending = ++pendingcnt [ABSPRI (w_)];	405	w_->pending = ++pendingcnt [ABSPRI (w_)];
358	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);
359	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	407	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
360	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	408	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
361	}	409	}
362		410
363	static void	411	static void
…		…
390	fd_event (EV_A_ fd, revents);	438	fd_event (EV_A_ fd, revents);
391	}	439	}
392		440
393	/*****************************************************************************/	441	/*****************************************************************************/
394		442
395	static void	443	inline void
396	fd_reify (EV_P)	444	fd_reify (EV_P)
397	{	445	{
398	int i;	446	int i;
399		447
400	for (i = 0; i < fdchangecnt; ++i)	448	for (i = 0; i < fdchangecnt; ++i)
…		…
406	int events = 0;	454	int events = 0;
407		455
408	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)
409	events \|= w->events;	457	events \|= w->events;
410		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
411	anfd->reify = 0;	468	anfd->reify = 0;
412		469
413	method_modify (EV_A_ fd, anfd->events, events);	470	backend_modify (EV_A_ fd, anfd->events, events);
414	anfd->events = events;	471	anfd->events = events;
415	}	472	}
416		473
417	fdchangecnt = 0;	474	fdchangecnt = 0;
418	}	475	}
419		476
420	static void	477	static void
421	fd_change (EV_P_ int fd)	478	fd_change (EV_P_ int fd)
422	{	479	{
423	if (anfds [fd].reify)	480	if (expect_false (anfds [fd].reify))
424	return;	481	return;
425		482
426	anfds [fd].reify = 1;	483	anfds [fd].reify = 1;
427		484
428	++fdchangecnt;	485	++fdchangecnt;
429	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	486	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
430	fdchanges [fdchangecnt - 1] = fd;	487	fdchanges [fdchangecnt - 1] = fd;
431	}	488	}
432		489
433	static void	490	static void
434	fd_kill (EV_P_ int fd)	491	fd_kill (EV_P_ int fd)
…		…
440	ev_io_stop (EV_A_ w);	497	ev_io_stop (EV_A_ w);
441	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);
442	}	499	}
443	}	500	}
444		501
445	static int	502	inline int
446	fd_valid (int fd)	503	fd_valid (int fd)
447	{	504	{
448	#ifdef WIN32	505	#ifdef _WIN32
449	return !!win32_get_osfhandle (fd);	506	return _get_osfhandle (fd) != -1;
450	#else	507	#else
451	return fcntl (fd, F_GETFD) != -1;	508	return fcntl (fd, F_GETFD) != -1;
452	#endif	509	#endif
453	}	510	}
454		511
…		…
476	fd_kill (EV_A_ fd);	533	fd_kill (EV_A_ fd);
477	return;	534	return;
478	}	535	}
479	}	536	}
480		537
481	/* 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 */
482	static void	539	static void
483	fd_rearm_all (EV_P)	540	fd_rearm_all (EV_P)
484	{	541	{
485	int fd;	542	int fd;
486		543
…		…
571	}	628	}
572		629
573	static void	630	static void
574	sighandler (int signum)	631	sighandler (int signum)
575	{	632	{
576	#if WIN32	633	#if _WIN32
577	signal (signum, sighandler);	634	signal (signum, sighandler);
578	#endif	635	#endif
579		636
580	signals [signum - 1].gotsig = 1;	637	signals [signum - 1].gotsig = 1;
581		638
582	if (!gotsig)	639	if (!gotsig)
583	{	640	{
584	int old_errno = errno;	641	int old_errno = errno;
585	gotsig = 1;	642	gotsig = 1;
586	#ifdef WIN32
587	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
588	#else
589	write (sigpipe [1], &signum, 1);	643	write (sigpipe [1], &signum, 1);
590	#endif
591	errno = old_errno;	644	errno = old_errno;
592	}	645	}
593	}	646	}
594		647
595	void	648	void
596	ev_feed_signal_event (EV_P_ int signum)	649	ev_feed_signal_event (EV_P_ int signum)
597	{	650	{
598	WL w;	651	WL w;
599		652
600	#if EV_MULTIPLICITY	653	#if EV_MULTIPLICITY
601	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));
602	#endif	655	#endif
603		656
604	--signum;	657	--signum;
605		658
606	if (signum < 0 \|\| signum >= signalmax)	659	if (signum < 0 \|\| signum >= signalmax)
…		…
615	static void	668	static void
616	sigcb (EV_P_ struct ev_io *iow, int revents)	669	sigcb (EV_P_ struct ev_io *iow, int revents)
617	{	670	{
618	int signum;	671	int signum;
619		672
620	#ifdef WIN32
621	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
622	#else
623	read (sigpipe [0], &revents, 1);	673	read (sigpipe [0], &revents, 1);
624	#endif
625	gotsig = 0;	674	gotsig = 0;
626		675
627	for (signum = signalmax; signum--; )	676	for (signum = signalmax; signum--; )
628	if (signals [signum].gotsig)	677	if (signals [signum].gotsig)
629	ev_feed_signal_event (EV_A_ signum + 1);	678	ev_feed_signal_event (EV_A_ signum + 1);
630	}	679	}
631		680
632	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
633	siginit (EV_P)	694	siginit (EV_P)
634	{	695	{
635	#ifndef WIN32	696	fd_intern (sigpipe [0]);
636	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	697	fd_intern (sigpipe [1]);
637	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
638
639	/* rather than sort out wether we really need nb, set it */
640	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
641	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
642	#endif
643		698
644	ev_io_set (&sigev, sigpipe [0], EV_READ);	699	ev_io_set (&sigev, sigpipe [0], EV_READ);
645	ev_io_start (EV_A_ &sigev);	700	ev_io_start (EV_A_ &sigev);
646	ev_unref (EV_A); /* child watcher should not keep loop alive */	701	ev_unref (EV_A); /* child watcher should not keep loop alive */
647	}	702	}
648		703
649	/*****************************************************************************/	704	/*****************************************************************************/
650		705
651	static struct ev_child *childs [PID_HASHSIZE];	706	static struct ev_child *childs [PID_HASHSIZE];
652		707
653	#ifndef WIN32	708	#ifndef _WIN32
654		709
655	static struct ev_signal childev;	710	static struct ev_signal childev;
656		711
657	#ifndef WCONTINUED	712	#ifndef WCONTINUED
658	# define WCONTINUED 0	713	# define WCONTINUED 0
…		…
679	int pid, status;	734	int pid, status;
680		735
681	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	736	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
682	{	737	{
683	/* 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 */
684	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	740	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
685		741
686	child_reap (EV_A_ sw, pid, pid, status);	742	child_reap (EV_A_ sw, pid, pid, status);
687	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	743	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
688	}	744	}
689	}	745	}
690		746
691	#endif	747	#endif
692		748
693	/*****************************************************************************/	749	/*****************************************************************************/
694		750
		751	#if EV_USE_PORT
		752	# include "ev_port.c"
		753	#endif
695	#if EV_USE_KQUEUE	754	#if EV_USE_KQUEUE
696	# include "ev_kqueue.c"	755	# include "ev_kqueue.c"
697	#endif	756	#endif
698	#if EV_USE_EPOLL	757	#if EV_USE_EPOLL
699	# include "ev_epoll.c"	758	# include "ev_epoll.c"
…		…
719		778
720	/* 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 */
721	static int	780	static int
722	enable_secure (void)	781	enable_secure (void)
723	{	782	{
724	#ifdef WIN32	783	#ifdef _WIN32
725	return 0;	784	return 0;
726	#else	785	#else
727	return getuid () != geteuid ()	786	return getuid () != geteuid ()
728	\|\| getgid () != getegid ();	787	\|\| getgid () != getegid ();
729	#endif	788	#endif
730	}	789	}
731		790
732	int	791	unsigned int
733	ev_method (EV_P)	792	ev_supported_backends (void)
734	{	793	{
735	return method;	794	unsigned int flags = 0;
736	}
737		795
738	static void	796	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
739	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)
740	{	807	{
741	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)
742	{	841	{
743	#if EV_USE_MONOTONIC	842	#if EV_USE_MONOTONIC
744	{	843	{
745	struct timespec ts;	844	struct timespec ts;
746	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	845	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
751	ev_rt_now = ev_time ();	850	ev_rt_now = ev_time ();
752	mn_now = get_clock ();	851	mn_now = get_clock ();
753	now_floor = mn_now;	852	now_floor = mn_now;
754	rtmn_diff = ev_rt_now - mn_now;	853	rtmn_diff = ev_rt_now - mn_now;
755		854
756	if (methods == EVMETHOD_AUTO)	855	if (!(flags & EVFLAG_NOENV)
757	if (!enable_secure () && getenv ("LIBEV_METHODS"))	856	&& !enable_secure ()
		857	&& getenv ("LIBEV_FLAGS"))
758	methods = atoi (getenv ("LIBEV_METHODS"));	858	flags = atoi (getenv ("LIBEV_FLAGS"));
759	else
760	methods = EVMETHOD_ANY;
761		859
762	method = 0;	860	if (!(flags & 0x0000ffffUL))
763	#if EV_USE_WIN32	861	flags \|= ev_recommended_backends ();
764	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);
765	#endif	866	#endif
766	#if EV_USE_KQUEUE	867	#if EV_USE_KQUEUE
767	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
768	#endif	869	#endif
769	#if EV_USE_EPOLL	870	#if EV_USE_EPOLL
770	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
771	#endif	872	#endif
772	#if EV_USE_POLL	873	#if EV_USE_POLL
773	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
774	#endif	875	#endif
775	#if EV_USE_SELECT	876	#if EV_USE_SELECT
776	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	877	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
777	#endif	878	#endif
778		879
779	ev_init (&sigev, sigcb);	880	ev_init (&sigev, sigcb);
780	ev_set_priority (&sigev, EV_MAXPRI);	881	ev_set_priority (&sigev, EV_MAXPRI);
781	}	882	}
782	}	883	}
783		884
784	void	885	static void
785	loop_destroy (EV_P)	886	loop_destroy (EV_P)
786	{	887	{
787	int i;	888	int i;
788		889
789	#if EV_USE_WIN32	890	#if EV_USE_PORT
790	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	891	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
791	#endif	892	#endif
792	#if EV_USE_KQUEUE	893	#if EV_USE_KQUEUE
793	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	894	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
794	#endif	895	#endif
795	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
796	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	897	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
797	#endif	898	#endif
798	#if EV_USE_POLL	899	#if EV_USE_POLL
799	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	900	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
800	#endif	901	#endif
801	#if EV_USE_SELECT	902	#if EV_USE_SELECT
802	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	903	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
803	#endif	904	#endif
804		905
805	for (i = NUMPRI; i--; )	906	for (i = NUMPRI; i--; )
806	array_free (pending, [i]);	907	array_free (pending, [i]);
807		908
808	/* have to use the microsoft-never-gets-it-right macro */	909	/* have to use the microsoft-never-gets-it-right macro */
809	array_free_microshit (fdchange);	910	array_free (fdchange, EMPTY0);
810	array_free_microshit (timer);	911	array_free (timer, EMPTY0);
811	#if EV_PERIODICS	912	#if EV_PERIODICS
812	array_free_microshit (periodic);	913	array_free (periodic, EMPTY0);
813	#endif	914	#endif
814	array_free_microshit (idle);	915	array_free (idle, EMPTY0);
815	array_free_microshit (prepare);	916	array_free (prepare, EMPTY0);
816	array_free_microshit (check);	917	array_free (check, EMPTY0);
817		918
818	method = 0;	919	backend = 0;
819	}	920	}
820		921
821	static void	922	static void
822	loop_fork (EV_P)	923	loop_fork (EV_P)
823	{	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
824	#if EV_USE_EPOLL	931	#if EV_USE_EPOLL
825	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	932	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
826	#endif
827	#if EV_USE_KQUEUE
828	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
829	#endif	933	#endif
830		934
831	if (ev_is_active (&sigev))	935	if (ev_is_active (&sigev))
832	{	936	{
833	/* default loop */	937	/* default loop */
…		…
846	postfork = 0;	950	postfork = 0;
847	}	951	}
848		952
849	#if EV_MULTIPLICITY	953	#if EV_MULTIPLICITY
850	struct ev_loop *	954	struct ev_loop *
851	ev_loop_new (int methods)	955	ev_loop_new (unsigned int flags)
852	{	956	{
853	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));
854		958
855	memset (loop, 0, sizeof (struct ev_loop));	959	memset (loop, 0, sizeof (struct ev_loop));
856		960
857	loop_init (EV_A_ methods);	961	loop_init (EV_A_ flags);
858		962
859	if (ev_method (EV_A))	963	if (ev_backend (EV_A))
860	return loop;	964	return loop;
861		965
862	return 0;	966	return 0;
863	}	967	}
864		968
…		…
877		981
878	#endif	982	#endif
879		983
880	#if EV_MULTIPLICITY	984	#if EV_MULTIPLICITY
881	struct ev_loop *	985	struct ev_loop *
		986	ev_default_loop_init (unsigned int flags)
882	#else	987	#else
883	int	988	int
		989	ev_default_loop (unsigned int flags)
884	#endif	990	#endif
885	ev_default_loop (int methods)
886	{	991	{
887	if (sigpipe [0] == sigpipe [1])	992	if (sigpipe [0] == sigpipe [1])
888	if (pipe (sigpipe))	993	if (pipe (sigpipe))
889	return 0;	994	return 0;
890		995
891	if (!default_loop)	996	if (!ev_default_loop_ptr)
892	{	997	{
893	#if EV_MULTIPLICITY	998	#if EV_MULTIPLICITY
894	struct ev_loop *loop = default_loop = &default_loop_struct;	999	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
895	#else	1000	#else
896	default_loop = 1;	1001	ev_default_loop_ptr = 1;
897	#endif	1002	#endif
898		1003
899	loop_init (EV_A_ methods);	1004	loop_init (EV_A_ flags);
900		1005
901	if (ev_method (EV_A))	1006	if (ev_backend (EV_A))
902	{	1007	{
903	siginit (EV_A);	1008	siginit (EV_A);
904		1009
905	#ifndef WIN32	1010	#ifndef _WIN32
906	ev_signal_init (&childev, childcb, SIGCHLD);	1011	ev_signal_init (&childev, childcb, SIGCHLD);
907	ev_set_priority (&childev, EV_MAXPRI);	1012	ev_set_priority (&childev, EV_MAXPRI);
908	ev_signal_start (EV_A_ &childev);	1013	ev_signal_start (EV_A_ &childev);
909	ev_unref (EV_A); /* child watcher should not keep loop alive */	1014	ev_unref (EV_A); /* child watcher should not keep loop alive */
910	#endif	1015	#endif
911	}	1016	}
912	else	1017	else
913	default_loop = 0;	1018	ev_default_loop_ptr = 0;
914	}	1019	}
915		1020
916	return default_loop;	1021	return ev_default_loop_ptr;
917	}	1022	}
918		1023
919	void	1024	void
920	ev_default_destroy (void)	1025	ev_default_destroy (void)
921	{	1026	{
922	#if EV_MULTIPLICITY	1027	#if EV_MULTIPLICITY
923	struct ev_loop *loop = default_loop;	1028	struct ev_loop *loop = ev_default_loop_ptr;
924	#endif	1029	#endif
925		1030
926	#ifndef WIN32	1031	#ifndef _WIN32
927	ev_ref (EV_A); /* child watcher */	1032	ev_ref (EV_A); /* child watcher */
928	ev_signal_stop (EV_A_ &childev);	1033	ev_signal_stop (EV_A_ &childev);
929	#endif	1034	#endif
930		1035
931	ev_ref (EV_A); /* signal watcher */	1036	ev_ref (EV_A); /* signal watcher */
…		…
939		1044
940	void	1045	void
941	ev_default_fork (void)	1046	ev_default_fork (void)
942	{	1047	{
943	#if EV_MULTIPLICITY	1048	#if EV_MULTIPLICITY
944	struct ev_loop *loop = default_loop;	1049	struct ev_loop *loop = ev_default_loop_ptr;
945	#endif	1050	#endif
946		1051
947	if (method)	1052	if (backend)
948	postfork = 1;	1053	postfork = 1;
949	}	1054	}
950		1055
951	/*****************************************************************************/	1056	/*****************************************************************************/
952		1057
…		…
960	return 1;	1065	return 1;
961		1066
962	return 0;	1067	return 0;
963	}	1068	}
964		1069
965	static void	1070	inline void
966	call_pending (EV_P)	1071	call_pending (EV_P)
967	{	1072	{
968	int pri;	1073	int pri;
969		1074
970	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
971	while (pendingcnt [pri])	1076	while (pendingcnt [pri])
972	{	1077	{
973	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1078	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
974		1079
975	if (p->w)	1080	if (expect_true (p->w))
976	{	1081	{
977	p->w->pending = 0;	1082	p->w->pending = 0;
978	EV_CB_INVOKE (p->w, p->events);	1083	EV_CB_INVOKE (p->w, p->events);
979	}	1084	}
980	}	1085	}
981	}	1086	}
982		1087
983	static void	1088	inline void
984	timers_reify (EV_P)	1089	timers_reify (EV_P)
985	{	1090	{
986	while (timercnt && ((WT)timers [0])->at <= mn_now)	1091	while (timercnt && ((WT)timers [0])->at <= mn_now)
987	{	1092	{
988	struct ev_timer *w = timers [0];	1093	struct ev_timer *w = timers [0];
…		…
1006	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1111	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1007	}	1112	}
1008	}	1113	}
1009		1114
1010	#if EV_PERIODICS	1115	#if EV_PERIODICS
1011	static void	1116	inline void
1012	periodics_reify (EV_P)	1117	periodics_reify (EV_P)
1013	{	1118	{
1014	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1119	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1015	{	1120	{
1016	struct ev_periodic *w = periodics [0];	1121	struct ev_periodic *w = periodics [0];
…		…
1018	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1123	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1019		1124
1020	/* first reschedule or stop timer */	1125	/* first reschedule or stop timer */
1021	if (w->reschedule_cb)	1126	if (w->reschedule_cb)
1022	{	1127	{
1023	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);
1024
1025	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));
1026	downheap ((WT *)periodics, periodiccnt, 0);	1130	downheap ((WT *)periodics, periodiccnt, 0);
1027	}	1131	}
1028	else if (w->interval)	1132	else if (w->interval)
1029	{	1133	{
…		…
1076	ev_rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
1077	return 1;	1181	return 1;
1078	}	1182	}
1079	}	1183	}
1080		1184
1081	static void	1185	inline void
1082	time_update (EV_P)	1186	time_update (EV_P)
1083	{	1187	{
1084	int i;	1188	int i;
1085		1189
1086	#if EV_USE_MONOTONIC	1190	#if EV_USE_MONOTONIC
…		…
1147	ev_loop (EV_P_ int flags)	1251	ev_loop (EV_P_ int flags)
1148	{	1252	{
1149	double block;	1253	double block;
1150	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1254	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1151		1255
1152	do	1256	while (activecnt)
1153	{	1257	{
1154	/* queue check watchers (and execute them) */	1258	/* queue check watchers (and execute them) */
1155	if (expect_false (preparecnt))	1259	if (expect_false (preparecnt))
1156	{	1260	{
1157	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1261	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1185	{	1289	{
1186	block = MAX_BLOCKTIME;	1290	block = MAX_BLOCKTIME;
1187		1291
1188	if (timercnt)	1292	if (timercnt)
1189	{	1293	{
1190	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1294	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1191	if (block > to) block = to;	1295	if (block > to) block = to;
1192	}	1296	}
1193		1297
1194	#if EV_PERIODICS	1298	#if EV_PERIODICS
1195	if (periodiccnt)	1299	if (periodiccnt)
1196	{	1300	{
1197	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1301	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1198	if (block > to) block = to;	1302	if (block > to) block = to;
1199	}	1303	}
1200	#endif	1304	#endif
1201		1305
1202	if (block < 0.) block = 0.;	1306	if (expect_false (block < 0.)) block = 0.;
1203	}	1307	}
1204		1308
1205	method_poll (EV_A_ block);	1309	backend_poll (EV_A_ block);
1206		1310
1207	/* update ev_rt_now, do magic */	1311	/* update ev_rt_now, do magic */
1208	time_update (EV_A);	1312	time_update (EV_A);
1209		1313
1210	/* queue pending timers and reschedule them */	1314	/* queue pending timers and reschedule them */
…		…
1216	/* queue idle watchers unless io or timers are pending */	1320	/* queue idle watchers unless io or timers are pending */
1217	if (idlecnt && !any_pending (EV_A))	1321	if (idlecnt && !any_pending (EV_A))
1218	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1322	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1219		1323
1220	/* queue check watchers, to be executed first */	1324	/* queue check watchers, to be executed first */
1221	if (checkcnt)	1325	if (expect_false (checkcnt))
1222	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1326	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1223		1327
1224	call_pending (EV_A);	1328	call_pending (EV_A);
		1329
		1330	if (expect_false (loop_done))
		1331	break;
1225	}	1332	}
1226	while (activecnt && !loop_done);
1227		1333
1228	if (loop_done != 2)	1334	if (loop_done != 2)
1229	loop_done = 0;	1335	loop_done = 0;
1230	}	1336	}
1231		1337
…		…
1291	void	1397	void
1292	ev_io_start (EV_P_ struct ev_io *w)	1398	ev_io_start (EV_P_ struct ev_io *w)
1293	{	1399	{
1294	int fd = w->fd;	1400	int fd = w->fd;
1295		1401
1296	if (ev_is_active (w))	1402	if (expect_false (ev_is_active (w)))
1297	return;	1403	return;
1298		1404
1299	assert (("ev_io_start called with negative fd", fd >= 0));	1405	assert (("ev_io_start called with negative fd", fd >= 0));
1300		1406
1301	ev_start (EV_A_ (W)w, 1);	1407	ev_start (EV_A_ (W)w, 1);
…		…
1307		1413
1308	void	1414	void
1309	ev_io_stop (EV_P_ struct ev_io *w)	1415	ev_io_stop (EV_P_ struct ev_io *w)
1310	{	1416	{
1311	ev_clear_pending (EV_A_ (W)w);	1417	ev_clear_pending (EV_A_ (W)w);
1312	if (!ev_is_active (w))	1418	if (expect_false (!ev_is_active (w)))
1313	return;	1419	return;
1314		1420
1315	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1421	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1316		1422
1317	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1423	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1321	}	1427	}
1322		1428
1323	void	1429	void
1324	ev_timer_start (EV_P_ struct ev_timer *w)	1430	ev_timer_start (EV_P_ struct ev_timer *w)
1325	{	1431	{
1326	if (ev_is_active (w))	1432	if (expect_false (ev_is_active (w)))
1327	return;	1433	return;
1328		1434
1329	((WT)w)->at += mn_now;	1435	((WT)w)->at += mn_now;
1330		1436
1331	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1437	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1332		1438
1333	ev_start (EV_A_ (W)w, ++timercnt);	1439	ev_start (EV_A_ (W)w, ++timercnt);
1334	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1440	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1335	timers [timercnt - 1] = w;	1441	timers [timercnt - 1] = w;
1336	upheap ((WT *)timers, timercnt - 1);	1442	upheap ((WT *)timers, timercnt - 1);
1337		1443
1338	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1444	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1339	}	1445	}
1340		1446
1341	void	1447	void
1342	ev_timer_stop (EV_P_ struct ev_timer *w)	1448	ev_timer_stop (EV_P_ struct ev_timer *w)
1343	{	1449	{
1344	ev_clear_pending (EV_A_ (W)w);	1450	ev_clear_pending (EV_A_ (W)w);
1345	if (!ev_is_active (w))	1451	if (expect_false (!ev_is_active (w)))
1346	return;	1452	return;
1347		1453
1348	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1454	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1349		1455
1350	if (((W)w)->active < timercnt--)	1456	if (expect_true (((W)w)->active < timercnt--))
1351	{	1457	{
1352	timers [((W)w)->active - 1] = timers [timercnt];	1458	timers [((W)w)->active - 1] = timers [timercnt];
1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1354	}	1460	}
1355		1461
…		…
1370	}	1476	}
1371	else	1477	else
1372	ev_timer_stop (EV_A_ w);	1478	ev_timer_stop (EV_A_ w);
1373	}	1479	}
1374	else if (w->repeat)	1480	else if (w->repeat)
		1481	{
		1482	w->at = w->repeat;
1375	ev_timer_start (EV_A_ w);	1483	ev_timer_start (EV_A_ w);
		1484	}
1376	}	1485	}
1377		1486
1378	#if EV_PERIODICS	1487	#if EV_PERIODICS
1379	void	1488	void
1380	ev_periodic_start (EV_P_ struct ev_periodic *w)	1489	ev_periodic_start (EV_P_ struct ev_periodic *w)
1381	{	1490	{
1382	if (ev_is_active (w))	1491	if (expect_false (ev_is_active (w)))
1383	return;	1492	return;
1384		1493
1385	if (w->reschedule_cb)	1494	if (w->reschedule_cb)
1386	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1495	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1387	else if (w->interval)	1496	else if (w->interval)
…		…
1390	/* this formula differs from the one in periodic_reify because we do not always round up */	1499	/* this formula differs from the one in periodic_reify because we do not always round up */
1391	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1500	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1392	}	1501	}
1393		1502
1394	ev_start (EV_A_ (W)w, ++periodiccnt);	1503	ev_start (EV_A_ (W)w, ++periodiccnt);
1395	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1504	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1396	periodics [periodiccnt - 1] = w;	1505	periodics [periodiccnt - 1] = w;
1397	upheap ((WT *)periodics, periodiccnt - 1);	1506	upheap ((WT *)periodics, periodiccnt - 1);
1398		1507
1399	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1508	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1400	}	1509	}
1401		1510
1402	void	1511	void
1403	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1512	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1404	{	1513	{
1405	ev_clear_pending (EV_A_ (W)w);	1514	ev_clear_pending (EV_A_ (W)w);
1406	if (!ev_is_active (w))	1515	if (expect_false (!ev_is_active (w)))
1407	return;	1516	return;
1408		1517
1409	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1518	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1410		1519
1411	if (((W)w)->active < periodiccnt--)	1520	if (expect_true (((W)w)->active < periodiccnt--))
1412	{	1521	{
1413	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1522	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1414	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1523	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1415	}	1524	}
1416		1525
…		…
1427	#endif	1536	#endif
1428		1537
1429	void	1538	void
1430	ev_idle_start (EV_P_ struct ev_idle *w)	1539	ev_idle_start (EV_P_ struct ev_idle *w)
1431	{	1540	{
1432	if (ev_is_active (w))	1541	if (expect_false (ev_is_active (w)))
1433	return;	1542	return;
1434		1543
1435	ev_start (EV_A_ (W)w, ++idlecnt);	1544	ev_start (EV_A_ (W)w, ++idlecnt);
1436	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1545	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1437	idles [idlecnt - 1] = w;	1546	idles [idlecnt - 1] = w;
1438	}	1547	}
1439		1548
1440	void	1549	void
1441	ev_idle_stop (EV_P_ struct ev_idle *w)	1550	ev_idle_stop (EV_P_ struct ev_idle *w)
1442	{	1551	{
1443	ev_clear_pending (EV_A_ (W)w);	1552	ev_clear_pending (EV_A_ (W)w);
1444	if (ev_is_active (w))	1553	if (expect_false (!ev_is_active (w)))
1445	return;	1554	return;
1446		1555
1447	idles [((W)w)->active - 1] = idles [--idlecnt];	1556	idles [((W)w)->active - 1] = idles [--idlecnt];
1448	ev_stop (EV_A_ (W)w);	1557	ev_stop (EV_A_ (W)w);
1449	}	1558	}
1450		1559
1451	void	1560	void
1452	ev_prepare_start (EV_P_ struct ev_prepare *w)	1561	ev_prepare_start (EV_P_ struct ev_prepare *w)
1453	{	1562	{
1454	if (ev_is_active (w))	1563	if (expect_false (ev_is_active (w)))
1455	return;	1564	return;
1456		1565
1457	ev_start (EV_A_ (W)w, ++preparecnt);	1566	ev_start (EV_A_ (W)w, ++preparecnt);
1458	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1567	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1459	prepares [preparecnt - 1] = w;	1568	prepares [preparecnt - 1] = w;
1460	}	1569	}
1461		1570
1462	void	1571	void
1463	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1572	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1464	{	1573	{
1465	ev_clear_pending (EV_A_ (W)w);	1574	ev_clear_pending (EV_A_ (W)w);
1466	if (!ev_is_active (w))	1575	if (expect_false (!ev_is_active (w)))
1467	return;	1576	return;
1468		1577
1469	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1578	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1470	ev_stop (EV_A_ (W)w);	1579	ev_stop (EV_A_ (W)w);
1471	}	1580	}
1472		1581
1473	void	1582	void
1474	ev_check_start (EV_P_ struct ev_check *w)	1583	ev_check_start (EV_P_ struct ev_check *w)
1475	{	1584	{
1476	if (ev_is_active (w))	1585	if (expect_false (ev_is_active (w)))
1477	return;	1586	return;
1478		1587
1479	ev_start (EV_A_ (W)w, ++checkcnt);	1588	ev_start (EV_A_ (W)w, ++checkcnt);
1480	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1589	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1481	checks [checkcnt - 1] = w;	1590	checks [checkcnt - 1] = w;
1482	}	1591	}
1483		1592
1484	void	1593	void
1485	ev_check_stop (EV_P_ struct ev_check *w)	1594	ev_check_stop (EV_P_ struct ev_check *w)
1486	{	1595	{
1487	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1489	return;	1598	return;
1490		1599
1491	checks [((W)w)->active - 1] = checks [--checkcnt];	1600	checks [((W)w)->active - 1] = checks [--checkcnt];
1492	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1493	}	1602	}
…		…
1498		1607
1499	void	1608	void
1500	ev_signal_start (EV_P_ struct ev_signal *w)	1609	ev_signal_start (EV_P_ struct ev_signal *w)
1501	{	1610	{
1502	#if EV_MULTIPLICITY	1611	#if EV_MULTIPLICITY
1503	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1612	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1504	#endif	1613	#endif
1505	if (ev_is_active (w))	1614	if (expect_false (ev_is_active (w)))
1506	return;	1615	return;
1507		1616
1508	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1617	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1509		1618
1510	ev_start (EV_A_ (W)w, 1);	1619	ev_start (EV_A_ (W)w, 1);
1511	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1620	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1512	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1621	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1513		1622
1514	if (!((WL)w)->next)	1623	if (!((WL)w)->next)
1515	{	1624	{
1516	#if WIN32	1625	#if _WIN32
1517	signal (w->signum, sighandler);	1626	signal (w->signum, sighandler);
1518	#else	1627	#else
1519	struct sigaction sa;	1628	struct sigaction sa;
1520	sa.sa_handler = sighandler;	1629	sa.sa_handler = sighandler;
1521	sigfillset (&sa.sa_mask);	1630	sigfillset (&sa.sa_mask);
…		…
1527		1636
1528	void	1637	void
1529	ev_signal_stop (EV_P_ struct ev_signal *w)	1638	ev_signal_stop (EV_P_ struct ev_signal *w)
1530	{	1639	{
1531	ev_clear_pending (EV_A_ (W)w);	1640	ev_clear_pending (EV_A_ (W)w);
1532	if (!ev_is_active (w))	1641	if (expect_false (!ev_is_active (w)))
1533	return;	1642	return;
1534		1643
1535	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1644	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1536	ev_stop (EV_A_ (W)w);	1645	ev_stop (EV_A_ (W)w);
1537		1646
…		…
1541		1650
1542	void	1651	void
1543	ev_child_start (EV_P_ struct ev_child *w)	1652	ev_child_start (EV_P_ struct ev_child *w)
1544	{	1653	{
1545	#if EV_MULTIPLICITY	1654	#if EV_MULTIPLICITY
1546	assert (("child watchers are only supported in the default loop", loop == default_loop));	1655	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1547	#endif	1656	#endif
1548	if (ev_is_active (w))	1657	if (expect_false (ev_is_active (w)))
1549	return;	1658	return;
1550		1659
1551	ev_start (EV_A_ (W)w, 1);	1660	ev_start (EV_A_ (W)w, 1);
1552	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1661	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1553	}	1662	}
1554		1663
1555	void	1664	void
1556	ev_child_stop (EV_P_ struct ev_child *w)	1665	ev_child_stop (EV_P_ struct ev_child *w)
1557	{	1666	{
1558	ev_clear_pending (EV_A_ (W)w);	1667	ev_clear_pending (EV_A_ (W)w);
1559	if (!ev_is_active (w))	1668	if (expect_false (!ev_is_active (w)))
1560	return;	1669	return;
1561		1670
1562	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1671	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1563	ev_stop (EV_A_ (W)w);	1672	ev_stop (EV_A_ (W)w);
1564	}	1673	}
		1674
		1675	#if EV_MULTIPLICITY
		1676	static void
		1677	embed_cb (EV_P_ struct ev_io *io, int revents)
		1678	{
		1679	struct ev_embed w = (struct ev_embed )(((char *)io) - offsetof (struct ev_embed, io));
		1680
		1681	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1682	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1683	}
		1684
		1685	void
		1686	ev_embed_start (EV_P_ struct ev_embed *w)
		1687	{
		1688	if (expect_false (ev_is_active (w)))
		1689	return;
		1690
		1691	{
		1692	struct ev_loop *loop = w->loop;
		1693	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1694	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1695	}
		1696
		1697	ev_io_start (EV_A_ &w->io);
		1698	ev_start (EV_A_ (W)w, 1);
		1699	}
		1700
		1701	void
		1702	ev_embed_stop (EV_P_ struct ev_embed *w)
		1703	{
		1704	ev_clear_pending (EV_A_ (W)w);
		1705	if (expect_false (!ev_is_active (w)))
		1706	return;
		1707
		1708	ev_io_stop (EV_A_ &w->io);
		1709	ev_stop (EV_A_ (W)w);
		1710	}
		1711	#endif
1565		1712
1566	/*****************************************************************************/	1713	/*****************************************************************************/
1567		1714
1568	struct ev_once	1715	struct ev_once
1569	{	1716	{
…		…
1601	void	1748	void
1602	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1749	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1603	{	1750	{
1604	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1751	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1605		1752
1606	if (!once)	1753	if (expect_false (!once))
		1754	{
1607	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1755	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1608	else	1756	return;
1609	{	1757	}
		1758
1610	once->cb = cb;	1759	once->cb = cb;
1611	once->arg = arg;	1760	once->arg = arg;
1612		1761
1613	ev_init (&once->io, once_cb_io);	1762	ev_init (&once->io, once_cb_io);
1614	if (fd >= 0)	1763	if (fd >= 0)
1615	{	1764	{
1616	ev_io_set (&once->io, fd, events);	1765	ev_io_set (&once->io, fd, events);
1617	ev_io_start (EV_A_ &once->io);	1766	ev_io_start (EV_A_ &once->io);
1618	}	1767	}
1619		1768
1620	ev_init (&once->to, once_cb_to);	1769	ev_init (&once->to, once_cb_to);
1621	if (timeout >= 0.)	1770	if (timeout >= 0.)
1622	{	1771	{
1623	ev_timer_set (&once->to, timeout, 0.);	1772	ev_timer_set (&once->to, timeout, 0.);
1624	ev_timer_start (EV_A_ &once->to);	1773	ev_timer_start (EV_A_ &once->to);
1625	}
1626	}	1774	}
1627	}	1775	}
1628		1776
1629	#ifdef __cplusplus	1777	#ifdef __cplusplus
1630	}	1778	}

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Comparing libev/ev.c (file contents): Revision 1.100 by root, Sun Nov 11 04:02:54 2007 UTC vs. Revision 1.134 by root, Fri Nov 23 19:13:33 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.100 by root, Sun Nov 11 04:02:54 2007 UTC vs.
Revision 1.134 by root, Fri Nov 23 19:13:33 2007 UTC