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

Comparing libev/ev.c (file contents):
Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC vs.
Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC

…		…
32	#ifdef __cplusplus	32	#ifdef __cplusplus
33	extern "C" {	33	extern "C" {
34	#endif	34	#endif
35		35
36	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
37	# include "config.h"	40	# include "config.h"
		41	# endif
38		42
39	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
		44	# ifndef EV_USE_MONOTONIC
40	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
		46	# endif
		47	# ifndef EV_USE_REALTIME
41	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
		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
42	# endif	57	# endif
43		58
		59	# ifndef EV_USE_SELECT
44	# if HAVE_SELECT && HAVE_SYS_SELECT_H	60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
45	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
46	# endif	65	# endif
47		66
		67	# ifndef EV_USE_POLL
48	# if HAVE_POLL && HAVE_POLL_H	68	# if HAVE_POLL && HAVE_POLL_H
49	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
50	# endif	73	# endif
51		74
		75	# ifndef EV_USE_EPOLL
52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
53	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
54	# endif	81	# endif
55		82
		83	# ifndef EV_USE_KQUEUE
56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
57	# 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
58	# endif	97	# endif
59		98
60	#endif	99	#endif
61		100
62	#include <math.h>	101	#include <math.h>
…		…
71	#include <sys/types.h>	110	#include <sys/types.h>
72	#include <time.h>	111	#include <time.h>
73		112
74	#include <signal.h>	113	#include <signal.h>
75		114
76	#ifndef WIN32	115	#ifndef _WIN32
77	# include <unistd.h>	116	# include <unistd.h>
78	# include <sys/time.h>	117	# include <sys/time.h>
79	# 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
80	#endif	124	# endif
		125	#endif
		126
81	/**/	127	/**/
82		128
83	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
84	# 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
85	#endif	135	#endif
86		136
87	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
88	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
89	#endif	139	#endif
90		140
91	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
92	# 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
93	#endif	147	#endif
94		148
95	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
96	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
97	#endif	151	#endif
98		152
99	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
100	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
101	#endif	155	#endif
102		156
103	#ifndef EV_USE_WIN32
104	# ifdef WIN32
105	# define EV_USE_WIN32 0 /* it does not exist, use select */
106	# undef EV_USE_SELECT
107	# define EV_USE_SELECT 1
108	# else
109	# define EV_USE_WIN32 0
110	# endif
111	#endif
112
113	#ifndef EV_USE_REALTIME	157	#ifndef EV_USE_PORT
114	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
115	#endif	159	#endif
116		160
117	/**/	161	/**/
118		162
119	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
124	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
125	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
126	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
127	#endif	171	#endif
128		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
129	/**/	177	/**/
130		178
131	#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) */
132	#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) */
133	#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 */
134	/#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 */
135		183
136	#ifdef EV_H	184	#ifdef EV_H
137	# include EV_H	185	# include EV_H
138	#else	186	#else
139	# include "ev.h"	187	# include "ev.h"
140	#endif	188	#endif
141		189
142	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
143	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
144	# define inline inline	192	# define inline static inline
145	#else	193	#else
146	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
147	# define inline static	195	# define inline static
148	#endif	196	#endif
149		197
…		…
151	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
152		200
153	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
154	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
155		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
156	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
157	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
158	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
159		210
160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
161		212
		213	#ifdef _WIN32
162	#include "ev_win32.c"	214	# include "ev_win32.c"
		215	#endif
163		216
164	/*****************************************************************************/	217	/*****************************************************************************/
165		218
166	static void (syserr_cb)(const char msg);	219	static void (syserr_cb)(const char msg);
167		220
…		…
214	typedef struct	267	typedef struct
215	{	268	{
216	WL head;	269	WL head;
217	unsigned char events;	270	unsigned char events;
218	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
219	} ANFD;	275	} ANFD;
220		276
221	typedef struct	277	typedef struct
222	{	278	{
223	W w;	279	W w;
…		…
227	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
228		284
229	struct ev_loop	285	struct ev_loop
230	{	286	{
231	ev_tstamp ev_rt_now;	287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
232	#define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
233	#include "ev_vars.h"	290	#include "ev_vars.h"
234	#undef VAR	291	#undef VAR
235	};	292	};
236	#include "ev_wrap.h"	293	#include "ev_wrap.h"
237		294
238	struct ev_loop default_loop_struct;	295	static struct ev_loop default_loop_struct;
239	static struct ev_loop *default_loop;	296	struct ev_loop *ev_default_loop_ptr;
240		297
241	#else	298	#else
242		299
243	ev_tstamp ev_rt_now;	300	ev_tstamp ev_rt_now;
244	#define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
245	#include "ev_vars.h"	302	#include "ev_vars.h"
246	#undef VAR	303	#undef VAR
247		304
248	static int default_loop;	305	static int ev_default_loop_ptr;
249		306
250	#endif	307	#endif
251		308
252	/*****************************************************************************/	309	/*****************************************************************************/
253		310
…		…
286	{	343	{
287	return ev_rt_now;	344	return ev_rt_now;
288	}	345	}
289	#endif	346	#endif
290		347
291	#define array_roundsize(type,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
292		349
293	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
294	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
295	{ \	352	{ \
296	int newcnt = cur; \	353	int newcnt = cur; \
…		…
311	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
312	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
313	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
314	}	371	}
315		372
316	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
317	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
318	#define array_free_microshit(stem) \
319	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
320
321	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
322	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;
323		375
324	/*****************************************************************************/	376	/*****************************************************************************/
325		377
…		…
339	void	391	void
340	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
341	{	393	{
342	W w_ = (W)w;	394	W w_ = (W)w;
343		395
344	if (w_->pending)	396	if (expect_false (w_->pending))
345	{	397	{
346	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
347	return;	399	return;
348	}	400	}
349		401
350	w_->pending = ++pendingcnt [ABSPRI (w_)];	402	w_->pending = ++pendingcnt [ABSPRI (w_)];
351	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	403	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	404	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	405	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
354	}	406	}
355		407
356	static void	408	static void
…		…
383	fd_event (EV_A_ fd, revents);	435	fd_event (EV_A_ fd, revents);
384	}	436	}
385		437
386	/*****************************************************************************/	438	/*****************************************************************************/
387		439
388	static void	440	inline void
389	fd_reify (EV_P)	441	fd_reify (EV_P)
390	{	442	{
391	int i;	443	int i;
392		444
393	for (i = 0; i < fdchangecnt; ++i)	445	for (i = 0; i < fdchangecnt; ++i)
…		…
399	int events = 0;	451	int events = 0;
400		452
401	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	453	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
402	events \|= w->events;	454	events \|= w->events;
403		455
		456	#if EV_SELECT_IS_WINSOCKET
		457	if (events)
		458	{
		459	unsigned long argp;
		460	anfd->handle = _get_osfhandle (fd);
		461	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		462	}
		463	#endif
		464
404	anfd->reify = 0;	465	anfd->reify = 0;
405		466
406	method_modify (EV_A_ fd, anfd->events, events);	467	backend_modify (EV_A_ fd, anfd->events, events);
407	anfd->events = events;	468	anfd->events = events;
408	}	469	}
409		470
410	fdchangecnt = 0;	471	fdchangecnt = 0;
411	}	472	}
412		473
413	static void	474	static void
414	fd_change (EV_P_ int fd)	475	fd_change (EV_P_ int fd)
415	{	476	{
416	if (anfds [fd].reify)	477	if (expect_false (anfds [fd].reify))
417	return;	478	return;
418		479
419	anfds [fd].reify = 1;	480	anfds [fd].reify = 1;
420		481
421	++fdchangecnt;	482	++fdchangecnt;
422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	483	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
423	fdchanges [fdchangecnt - 1] = fd;	484	fdchanges [fdchangecnt - 1] = fd;
424	}	485	}
425		486
426	static void	487	static void
427	fd_kill (EV_P_ int fd)	488	fd_kill (EV_P_ int fd)
…		…
433	ev_io_stop (EV_A_ w);	494	ev_io_stop (EV_A_ w);
434	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	495	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
435	}	496	}
436	}	497	}
437		498
438	static int	499	inline int
439	fd_valid (int fd)	500	fd_valid (int fd)
440	{	501	{
441	#ifdef WIN32	502	#ifdef _WIN32
442	return !!win32_get_osfhandle (fd);	503	return _get_osfhandle (fd) != -1;
443	#else	504	#else
444	return fcntl (fd, F_GETFD) != -1;	505	return fcntl (fd, F_GETFD) != -1;
445	#endif	506	#endif
446	}	507	}
447		508
…		…
469	fd_kill (EV_A_ fd);	530	fd_kill (EV_A_ fd);
470	return;	531	return;
471	}	532	}
472	}	533	}
473		534
474	/* usually called after fork if method needs to re-arm all fds from scratch */	535	/* usually called after fork if backend needs to re-arm all fds from scratch */
475	static void	536	static void
476	fd_rearm_all (EV_P)	537	fd_rearm_all (EV_P)
477	{	538	{
478	int fd;	539	int fd;
479		540
…		…
528	heap [k] = w;	589	heap [k] = w;
529	((W)heap [k])->active = k + 1;	590	((W)heap [k])->active = k + 1;
530	}	591	}
531		592
532	inline void	593	inline void
533	adjustheap (WT *heap, int N, int k, ev_tstamp at)	594	adjustheap (WT *heap, int N, int k)
534	{	595	{
535	ev_tstamp old_at = heap [k]->at;	596	upheap (heap, k);
536	heap [k]->at = at;
537
538	if (old_at < at)
539	downheap (heap, N, k);	597	downheap (heap, N, k);
540	else
541	upheap (heap, k);
542	}	598	}
543		599
544	/*****************************************************************************/	600	/*****************************************************************************/
545		601
546	typedef struct	602	typedef struct
…		…
569	}	625	}
570		626
571	static void	627	static void
572	sighandler (int signum)	628	sighandler (int signum)
573	{	629	{
574	#if WIN32	630	#if _WIN32
575	signal (signum, sighandler);	631	signal (signum, sighandler);
576	#endif	632	#endif
577		633
578	signals [signum - 1].gotsig = 1;	634	signals [signum - 1].gotsig = 1;
579		635
580	if (!gotsig)	636	if (!gotsig)
581	{	637	{
582	int old_errno = errno;	638	int old_errno = errno;
583	gotsig = 1;	639	gotsig = 1;
584	#ifdef WIN32
585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
586	#else
587	write (sigpipe [1], &signum, 1);	640	write (sigpipe [1], &signum, 1);
588	#endif
589	errno = old_errno;	641	errno = old_errno;
590	}	642	}
591	}	643	}
592		644
593	void	645	void
594	ev_feed_signal_event (EV_P_ int signum)	646	ev_feed_signal_event (EV_P_ int signum)
595	{	647	{
596	WL w;	648	WL w;
597		649
598	#if EV_MULTIPLICITY	650	#if EV_MULTIPLICITY
599	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	651	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
600	#endif	652	#endif
601		653
602	--signum;	654	--signum;
603		655
604	if (signum < 0 \|\| signum >= signalmax)	656	if (signum < 0 \|\| signum >= signalmax)
…		…
613	static void	665	static void
614	sigcb (EV_P_ struct ev_io *iow, int revents)	666	sigcb (EV_P_ struct ev_io *iow, int revents)
615	{	667	{
616	int signum;	668	int signum;
617		669
618	#ifdef WIN32
619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
620	#else
621	read (sigpipe [0], &revents, 1);	670	read (sigpipe [0], &revents, 1);
622	#endif
623	gotsig = 0;	671	gotsig = 0;
624		672
625	for (signum = signalmax; signum--; )	673	for (signum = signalmax; signum--; )
626	if (signals [signum].gotsig)	674	if (signals [signum].gotsig)
627	ev_feed_signal_event (EV_A_ signum + 1);	675	ev_feed_signal_event (EV_A_ signum + 1);
628	}	676	}
629		677
630	static void	678	static void
		679	fd_intern (int fd)
		680	{
		681	#ifdef _WIN32
		682	int arg = 1;
		683	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		684	#else
		685	fcntl (fd, F_SETFD, FD_CLOEXEC);
		686	fcntl (fd, F_SETFL, O_NONBLOCK);
		687	#endif
		688	}
		689
		690	static void
631	siginit (EV_P)	691	siginit (EV_P)
632	{	692	{
633	#ifndef WIN32	693	fd_intern (sigpipe [0]);
634	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	694	fd_intern (sigpipe [1]);
635	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
636
637	/* rather than sort out wether we really need nb, set it */
638	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
639	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
640	#endif
641		695
642	ev_io_set (&sigev, sigpipe [0], EV_READ);	696	ev_io_set (&sigev, sigpipe [0], EV_READ);
643	ev_io_start (EV_A_ &sigev);	697	ev_io_start (EV_A_ &sigev);
644	ev_unref (EV_A); /* child watcher should not keep loop alive */	698	ev_unref (EV_A); /* child watcher should not keep loop alive */
645	}	699	}
646		700
647	/*****************************************************************************/	701	/*****************************************************************************/
648		702
649	static struct ev_child *childs [PID_HASHSIZE];	703	static struct ev_child *childs [PID_HASHSIZE];
650		704
651	#ifndef WIN32	705	#ifndef _WIN32
652		706
653	static struct ev_signal childev;	707	static struct ev_signal childev;
654		708
655	#ifndef WCONTINUED	709	#ifndef WCONTINUED
656	# define WCONTINUED 0	710	# define WCONTINUED 0
…		…
677	int pid, status;	731	int pid, status;
678		732
679	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	733	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
680	{	734	{
681	/* make sure we are called again until all childs have been reaped */	735	/* make sure we are called again until all childs have been reaped */
		736	/* we need to do it this way so that the callback gets called before we continue */
682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	737	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
683		738
684	child_reap (EV_A_ sw, pid, pid, status);	739	child_reap (EV_A_ sw, pid, pid, status);
685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	740	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
686	}	741	}
687	}	742	}
688		743
689	#endif	744	#endif
690		745
691	/*****************************************************************************/	746	/*****************************************************************************/
692		747
		748	#if EV_USE_PORT
		749	# include "ev_port.c"
		750	#endif
693	#if EV_USE_KQUEUE	751	#if EV_USE_KQUEUE
694	# include "ev_kqueue.c"	752	# include "ev_kqueue.c"
695	#endif	753	#endif
696	#if EV_USE_EPOLL	754	#if EV_USE_EPOLL
697	# include "ev_epoll.c"	755	# include "ev_epoll.c"
…		…
717		775
718	/* return true if we are running with elevated privileges and should ignore env variables */	776	/* return true if we are running with elevated privileges and should ignore env variables */
719	static int	777	static int
720	enable_secure (void)	778	enable_secure (void)
721	{	779	{
722	#ifdef WIN32	780	#ifdef _WIN32
723	return 0;	781	return 0;
724	#else	782	#else
725	return getuid () != geteuid ()	783	return getuid () != geteuid ()
726	\|\| getgid () != getegid ();	784	\|\| getgid () != getegid ();
727	#endif	785	#endif
728	}	786	}
729		787
730	int	788	unsigned int
731	ev_method (EV_P)	789	ev_supported_backends (void)
732	{	790	{
733	return method;	791	unsigned int flags = 0;
734	}
735		792
736	static void	793	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
737	loop_init (EV_P_ int methods)	794	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		795	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		796	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		797	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		798
		799	return flags;
		800	}
		801
		802	unsigned int
		803	ev_recommended_backends (void)
738	{	804	{
739	if (!method)	805	unsigned int flags = ev_supported_backends ();
		806
		807	#ifndef __NetBSD__
		808	/* kqueue is borked on everything but netbsd apparently */
		809	/* it usually doesn't work correctly on anything but sockets and pipes */
		810	flags &= ~EVBACKEND_KQUEUE;
		811	#endif
		812	#ifdef __APPLE__
		813	// flags &= ~EVBACKEND_KQUEUE; for documentation
		814	flags &= ~EVBACKEND_POLL;
		815	#endif
		816
		817	return flags;
		818	}
		819
		820	unsigned int
		821	ev_backend (EV_P)
		822	{
		823	return backend;
		824	}
		825
		826	static void
		827	loop_init (EV_P_ unsigned int flags)
		828	{
		829	if (!backend)
740	{	830	{
741	#if EV_USE_MONOTONIC	831	#if EV_USE_MONOTONIC
742	{	832	{
743	struct timespec ts;	833	struct timespec ts;
744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	834	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
749	ev_rt_now = ev_time ();	839	ev_rt_now = ev_time ();
750	mn_now = get_clock ();	840	mn_now = get_clock ();
751	now_floor = mn_now;	841	now_floor = mn_now;
752	rtmn_diff = ev_rt_now - mn_now;	842	rtmn_diff = ev_rt_now - mn_now;
753		843
754	if (methods == EVMETHOD_AUTO)	844	if (!(flags & EVFLAG_NOENV)
755	if (!enable_secure () && getenv ("LIBEV_METHODS"))	845	&& !enable_secure ()
		846	&& getenv ("LIBEV_FLAGS"))
756	methods = atoi (getenv ("LIBEV_METHODS"));	847	flags = atoi (getenv ("LIBEV_FLAGS"));
757	else
758	methods = EVMETHOD_ANY;
759		848
760	method = 0;	849	if (!(flags & 0x0000ffffUL))
761	#if EV_USE_WIN32	850	flags \|= ev_recommended_backends ();
762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	851
		852	backend = 0;
		853	#if EV_USE_PORT
		854	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
763	#endif	855	#endif
764	#if EV_USE_KQUEUE	856	#if EV_USE_KQUEUE
765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	857	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
766	#endif	858	#endif
767	#if EV_USE_EPOLL	859	#if EV_USE_EPOLL
768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	860	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
769	#endif	861	#endif
770	#if EV_USE_POLL	862	#if EV_USE_POLL
771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	863	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
772	#endif	864	#endif
773	#if EV_USE_SELECT	865	#if EV_USE_SELECT
774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	866	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
775	#endif	867	#endif
776		868
777	ev_init (&sigev, sigcb);	869	ev_init (&sigev, sigcb);
778	ev_set_priority (&sigev, EV_MAXPRI);	870	ev_set_priority (&sigev, EV_MAXPRI);
779	}	871	}
780	}	872	}
781		873
782	void	874	static void
783	loop_destroy (EV_P)	875	loop_destroy (EV_P)
784	{	876	{
785	int i;	877	int i;
786		878
787	#if EV_USE_WIN32	879	#if EV_USE_PORT
788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	880	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
789	#endif	881	#endif
790	#if EV_USE_KQUEUE	882	#if EV_USE_KQUEUE
791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	883	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
792	#endif	884	#endif
793	#if EV_USE_EPOLL	885	#if EV_USE_EPOLL
794	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	886	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
795	#endif	887	#endif
796	#if EV_USE_POLL	888	#if EV_USE_POLL
797	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	889	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
798	#endif	890	#endif
799	#if EV_USE_SELECT	891	#if EV_USE_SELECT
800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	892	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
801	#endif	893	#endif
802		894
803	for (i = NUMPRI; i--; )	895	for (i = NUMPRI; i--; )
804	array_free (pending, [i]);	896	array_free (pending, [i]);
805		897
806	/* have to use the microsoft-never-gets-it-right macro */	898	/* have to use the microsoft-never-gets-it-right macro */
807	array_free_microshit (fdchange);	899	array_free (fdchange, EMPTY0);
808	array_free_microshit (timer);	900	array_free (timer, EMPTY0);
809	#if EV_PERIODICS	901	#if EV_PERIODICS
810	array_free_microshit (periodic);	902	array_free (periodic, EMPTY0);
811	#endif	903	#endif
812	array_free_microshit (idle);	904	array_free (idle, EMPTY0);
813	array_free_microshit (prepare);	905	array_free (prepare, EMPTY0);
814	array_free_microshit (check);	906	array_free (check, EMPTY0);
815		907
816	method = 0;	908	backend = 0;
817	}	909	}
818		910
819	static void	911	static void
820	loop_fork (EV_P)	912	loop_fork (EV_P)
821	{	913	{
		914	#if EV_USE_PORT
		915	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		916	#endif
		917	#if EV_USE_KQUEUE
		918	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		919	#endif
822	#if EV_USE_EPOLL	920	#if EV_USE_EPOLL
823	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	921	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
824	#endif
825	#if EV_USE_KQUEUE
826	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
827	#endif	922	#endif
828		923
829	if (ev_is_active (&sigev))	924	if (ev_is_active (&sigev))
830	{	925	{
831	/* default loop */	926	/* default loop */
…		…
844	postfork = 0;	939	postfork = 0;
845	}	940	}
846		941
847	#if EV_MULTIPLICITY	942	#if EV_MULTIPLICITY
848	struct ev_loop *	943	struct ev_loop *
849	ev_loop_new (int methods)	944	ev_loop_new (unsigned int flags)
850	{	945	{
851	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	946	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
852		947
853	memset (loop, 0, sizeof (struct ev_loop));	948	memset (loop, 0, sizeof (struct ev_loop));
854		949
855	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
856		951
857	if (ev_method (EV_A))	952	if (ev_backend (EV_A))
858	return loop;	953	return loop;
859		954
860	return 0;	955	return 0;
861	}	956	}
862		957
…		…
875		970
876	#endif	971	#endif
877		972
878	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
879	struct ev_loop *	974	struct ev_loop *
		975	ev_default_loop_init (unsigned int flags)
880	#else	976	#else
881	int	977	int
		978	ev_default_loop (unsigned int flags)
882	#endif	979	#endif
883	ev_default_loop (int methods)
884	{	980	{
885	if (sigpipe [0] == sigpipe [1])	981	if (sigpipe [0] == sigpipe [1])
886	if (pipe (sigpipe))	982	if (pipe (sigpipe))
887	return 0;	983	return 0;
888		984
889	if (!default_loop)	985	if (!ev_default_loop_ptr)
890	{	986	{
891	#if EV_MULTIPLICITY	987	#if EV_MULTIPLICITY
892	struct ev_loop *loop = default_loop = &default_loop_struct;	988	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
893	#else	989	#else
894	default_loop = 1;	990	ev_default_loop_ptr = 1;
895	#endif	991	#endif
896		992
897	loop_init (EV_A_ methods);	993	loop_init (EV_A_ flags);
898		994
899	if (ev_method (EV_A))	995	if (ev_backend (EV_A))
900	{	996	{
901	siginit (EV_A);	997	siginit (EV_A);
902		998
903	#ifndef WIN32	999	#ifndef _WIN32
904	ev_signal_init (&childev, childcb, SIGCHLD);	1000	ev_signal_init (&childev, childcb, SIGCHLD);
905	ev_set_priority (&childev, EV_MAXPRI);	1001	ev_set_priority (&childev, EV_MAXPRI);
906	ev_signal_start (EV_A_ &childev);	1002	ev_signal_start (EV_A_ &childev);
907	ev_unref (EV_A); /* child watcher should not keep loop alive */	1003	ev_unref (EV_A); /* child watcher should not keep loop alive */
908	#endif	1004	#endif
909	}	1005	}
910	else	1006	else
911	default_loop = 0;	1007	ev_default_loop_ptr = 0;
912	}	1008	}
913		1009
914	return default_loop;	1010	return ev_default_loop_ptr;
915	}	1011	}
916		1012
917	void	1013	void
918	ev_default_destroy (void)	1014	ev_default_destroy (void)
919	{	1015	{
920	#if EV_MULTIPLICITY	1016	#if EV_MULTIPLICITY
921	struct ev_loop *loop = default_loop;	1017	struct ev_loop *loop = ev_default_loop_ptr;
922	#endif	1018	#endif
923		1019
924	#ifndef WIN32	1020	#ifndef _WIN32
925	ev_ref (EV_A); /* child watcher */	1021	ev_ref (EV_A); /* child watcher */
926	ev_signal_stop (EV_A_ &childev);	1022	ev_signal_stop (EV_A_ &childev);
927	#endif	1023	#endif
928		1024
929	ev_ref (EV_A); /* signal watcher */	1025	ev_ref (EV_A); /* signal watcher */
…		…
937		1033
938	void	1034	void
939	ev_default_fork (void)	1035	ev_default_fork (void)
940	{	1036	{
941	#if EV_MULTIPLICITY	1037	#if EV_MULTIPLICITY
942	struct ev_loop *loop = default_loop;	1038	struct ev_loop *loop = ev_default_loop_ptr;
943	#endif	1039	#endif
944		1040
945	if (method)	1041	if (backend)
946	postfork = 1;	1042	postfork = 1;
947	}	1043	}
948		1044
949	/*****************************************************************************/	1045	/*****************************************************************************/
950		1046
…		…
958	return 1;	1054	return 1;
959		1055
960	return 0;	1056	return 0;
961	}	1057	}
962		1058
963	static void	1059	inline void
964	call_pending (EV_P)	1060	call_pending (EV_P)
965	{	1061	{
966	int pri;	1062	int pri;
967		1063
968	for (pri = NUMPRI; pri--; )	1064	for (pri = NUMPRI; pri--; )
969	while (pendingcnt [pri])	1065	while (pendingcnt [pri])
970	{	1066	{
971	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1067	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
972		1068
973	if (p->w)	1069	if (expect_true (p->w))
974	{	1070	{
975	p->w->pending = 0;	1071	p->w->pending = 0;
976	EV_CB_INVOKE (p->w, p->events);	1072	EV_CB_INVOKE (p->w, p->events);
977	}	1073	}
978	}	1074	}
979	}	1075	}
980		1076
981	static void	1077	inline void
982	timers_reify (EV_P)	1078	timers_reify (EV_P)
983	{	1079	{
984	while (timercnt && ((WT)timers [0])->at <= mn_now)	1080	while (timercnt && ((WT)timers [0])->at <= mn_now)
985	{	1081	{
986	struct ev_timer *w = timers [0];	1082	struct ev_timer *w = timers [0];
…		…
1004	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1100	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
1005	}	1101	}
1006	}	1102	}
1007		1103
1008	#if EV_PERIODICS	1104	#if EV_PERIODICS
1009	static void	1105	inline void
1010	periodics_reify (EV_P)	1106	periodics_reify (EV_P)
1011	{	1107	{
1012	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1108	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
1013	{	1109	{
1014	struct ev_periodic *w = periodics [0];	1110	struct ev_periodic *w = periodics [0];
…		…
1016	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1112	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1017		1113
1018	/* first reschedule or stop timer */	1114	/* first reschedule or stop timer */
1019	if (w->reschedule_cb)	1115	if (w->reschedule_cb)
1020	{	1116	{
1021	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1117	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1022
1023	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1118	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1024	downheap ((WT *)periodics, periodiccnt, 0);	1119	downheap ((WT *)periodics, periodiccnt, 0);
1025	}	1120	}
1026	else if (w->interval)	1121	else if (w->interval)
1027	{	1122	{
…		…
1074	ev_rt_now = ev_time ();	1169	ev_rt_now = ev_time ();
1075	return 1;	1170	return 1;
1076	}	1171	}
1077	}	1172	}
1078		1173
1079	static void	1174	inline void
1080	time_update (EV_P)	1175	time_update (EV_P)
1081	{	1176	{
1082	int i;	1177	int i;
1083		1178
1084	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
…		…
1145	ev_loop (EV_P_ int flags)	1240	ev_loop (EV_P_ int flags)
1146	{	1241	{
1147	double block;	1242	double block;
1148	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1243	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1149		1244
1150	do	1245	while (activecnt)
1151	{	1246	{
1152	/* queue check watchers (and execute them) */	1247	/* queue check watchers (and execute them) */
1153	if (expect_false (preparecnt))	1248	if (expect_false (preparecnt))
1154	{	1249	{
1155	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1250	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1183	{	1278	{
1184	block = MAX_BLOCKTIME;	1279	block = MAX_BLOCKTIME;
1185		1280
1186	if (timercnt)	1281	if (timercnt)
1187	{	1282	{
1188	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1283	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1189	if (block > to) block = to;	1284	if (block > to) block = to;
1190	}	1285	}
1191		1286
1192	#if EV_PERIODICS	1287	#if EV_PERIODICS
1193	if (periodiccnt)	1288	if (periodiccnt)
1194	{	1289	{
1195	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1290	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1196	if (block > to) block = to;	1291	if (block > to) block = to;
1197	}	1292	}
1198	#endif	1293	#endif
1199		1294
1200	if (block < 0.) block = 0.;	1295	if (expect_false (block < 0.)) block = 0.;
1201	}	1296	}
1202		1297
1203	method_poll (EV_A_ block);	1298	backend_poll (EV_A_ block);
1204		1299
1205	/* update ev_rt_now, do magic */	1300	/* update ev_rt_now, do magic */
1206	time_update (EV_A);	1301	time_update (EV_A);
1207		1302
1208	/* queue pending timers and reschedule them */	1303	/* queue pending timers and reschedule them */
…		…
1214	/* queue idle watchers unless io or timers are pending */	1309	/* queue idle watchers unless io or timers are pending */
1215	if (idlecnt && !any_pending (EV_A))	1310	if (idlecnt && !any_pending (EV_A))
1216	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1311	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1217		1312
1218	/* queue check watchers, to be executed first */	1313	/* queue check watchers, to be executed first */
1219	if (checkcnt)	1314	if (expect_false (checkcnt))
1220	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1315	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1221		1316
1222	call_pending (EV_A);	1317	call_pending (EV_A);
		1318
		1319	if (expect_false (loop_done))
		1320	break;
1223	}	1321	}
1224	while (activecnt && !loop_done);
1225		1322
1226	if (loop_done != 2)	1323	if (loop_done != 2)
1227	loop_done = 0;	1324	loop_done = 0;
1228	}	1325	}
1229		1326
…		…
1289	void	1386	void
1290	ev_io_start (EV_P_ struct ev_io *w)	1387	ev_io_start (EV_P_ struct ev_io *w)
1291	{	1388	{
1292	int fd = w->fd;	1389	int fd = w->fd;
1293		1390
1294	if (ev_is_active (w))	1391	if (expect_false (ev_is_active (w)))
1295	return;	1392	return;
1296		1393
1297	assert (("ev_io_start called with negative fd", fd >= 0));	1394	assert (("ev_io_start called with negative fd", fd >= 0));
1298		1395
1299	ev_start (EV_A_ (W)w, 1);	1396	ev_start (EV_A_ (W)w, 1);
…		…
1305		1402
1306	void	1403	void
1307	ev_io_stop (EV_P_ struct ev_io *w)	1404	ev_io_stop (EV_P_ struct ev_io *w)
1308	{	1405	{
1309	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1310	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1311	return;	1408	return;
1312		1409
1313	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));	1410	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1314		1411
1315	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1412	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
…		…
1319	}	1416	}
1320		1417
1321	void	1418	void
1322	ev_timer_start (EV_P_ struct ev_timer *w)	1419	ev_timer_start (EV_P_ struct ev_timer *w)
1323	{	1420	{
1324	if (ev_is_active (w))	1421	if (expect_false (ev_is_active (w)))
1325	return;	1422	return;
1326		1423
1327	((WT)w)->at += mn_now;	1424	((WT)w)->at += mn_now;
1328		1425
1329	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1426	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1330		1427
1331	ev_start (EV_A_ (W)w, ++timercnt);	1428	ev_start (EV_A_ (W)w, ++timercnt);
1332	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1429	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1333	timers [timercnt - 1] = w;	1430	timers [timercnt - 1] = w;
1334	upheap ((WT *)timers, timercnt - 1);	1431	upheap ((WT *)timers, timercnt - 1);
1335		1432
1336	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1433	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1337	}	1434	}
1338		1435
1339	void	1436	void
1340	ev_timer_stop (EV_P_ struct ev_timer *w)	1437	ev_timer_stop (EV_P_ struct ev_timer *w)
1341	{	1438	{
1342	ev_clear_pending (EV_A_ (W)w);	1439	ev_clear_pending (EV_A_ (W)w);
1343	if (!ev_is_active (w))	1440	if (expect_false (!ev_is_active (w)))
1344	return;	1441	return;
1345		1442
1346	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1443	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1347		1444
1348	if (((W)w)->active < timercnt--)	1445	if (expect_true (((W)w)->active < timercnt--))
1349	{	1446	{
1350	timers [((W)w)->active - 1] = timers [timercnt];	1447	timers [((W)w)->active - 1] = timers [timercnt];
1351	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1448	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1352	}	1449	}
1353		1450
1354	((WT)w)->at -= mn_now;	1451	((WT)w)->at -= mn_now;
1355		1452
1356	ev_stop (EV_A_ (W)w);	1453	ev_stop (EV_A_ (W)w);
…		…
1360	ev_timer_again (EV_P_ struct ev_timer *w)	1457	ev_timer_again (EV_P_ struct ev_timer *w)
1361	{	1458	{
1362	if (ev_is_active (w))	1459	if (ev_is_active (w))
1363	{	1460	{
1364	if (w->repeat)	1461	if (w->repeat)
		1462	{
		1463	((WT)w)->at = mn_now + w->repeat;
1365	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1464	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1465	}
1366	else	1466	else
1367	ev_timer_stop (EV_A_ w);	1467	ev_timer_stop (EV_A_ w);
1368	}	1468	}
1369	else if (w->repeat)	1469	else if (w->repeat)
		1470	{
		1471	w->at = w->repeat;
1370	ev_timer_start (EV_A_ w);	1472	ev_timer_start (EV_A_ w);
		1473	}
1371	}	1474	}
1372		1475
1373	#if EV_PERIODICS	1476	#if EV_PERIODICS
1374	void	1477	void
1375	ev_periodic_start (EV_P_ struct ev_periodic *w)	1478	ev_periodic_start (EV_P_ struct ev_periodic *w)
1376	{	1479	{
1377	if (ev_is_active (w))	1480	if (expect_false (ev_is_active (w)))
1378	return;	1481	return;
1379		1482
1380	if (w->reschedule_cb)	1483	if (w->reschedule_cb)
1381	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1484	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1382	else if (w->interval)	1485	else if (w->interval)
…		…
1385	/* this formula differs from the one in periodic_reify because we do not always round up */	1488	/* this formula differs from the one in periodic_reify because we do not always round up */
1386	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1489	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1387	}	1490	}
1388		1491
1389	ev_start (EV_A_ (W)w, ++periodiccnt);	1492	ev_start (EV_A_ (W)w, ++periodiccnt);
1390	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1493	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1391	periodics [periodiccnt - 1] = w;	1494	periodics [periodiccnt - 1] = w;
1392	upheap ((WT *)periodics, periodiccnt - 1);	1495	upheap ((WT *)periodics, periodiccnt - 1);
1393		1496
1394	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1497	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1395	}	1498	}
1396		1499
1397	void	1500	void
1398	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1501	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1399	{	1502	{
1400	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1401	if (!ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1402	return;	1505	return;
1403		1506
1404	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1507	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1405		1508
1406	if (((W)w)->active < periodiccnt--)	1509	if (expect_true (((W)w)->active < periodiccnt--))
1407	{	1510	{
1408	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1511	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1409	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1512	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1410	}	1513	}
1411		1514
1412	ev_stop (EV_A_ (W)w);	1515	ev_stop (EV_A_ (W)w);
1413	}	1516	}
1414		1517
…		…
1422	#endif	1525	#endif
1423		1526
1424	void	1527	void
1425	ev_idle_start (EV_P_ struct ev_idle *w)	1528	ev_idle_start (EV_P_ struct ev_idle *w)
1426	{	1529	{
1427	if (ev_is_active (w))	1530	if (expect_false (ev_is_active (w)))
1428	return;	1531	return;
1429		1532
1430	ev_start (EV_A_ (W)w, ++idlecnt);	1533	ev_start (EV_A_ (W)w, ++idlecnt);
1431	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1534	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1432	idles [idlecnt - 1] = w;	1535	idles [idlecnt - 1] = w;
1433	}	1536	}
1434		1537
1435	void	1538	void
1436	ev_idle_stop (EV_P_ struct ev_idle *w)	1539	ev_idle_stop (EV_P_ struct ev_idle *w)
1437	{	1540	{
1438	ev_clear_pending (EV_A_ (W)w);	1541	ev_clear_pending (EV_A_ (W)w);
1439	if (!ev_is_active (w))	1542	if (expect_false (!ev_is_active (w)))
1440	return;	1543	return;
1441		1544
1442	idles [((W)w)->active - 1] = idles [--idlecnt];	1545	idles [((W)w)->active - 1] = idles [--idlecnt];
1443	ev_stop (EV_A_ (W)w);	1546	ev_stop (EV_A_ (W)w);
1444	}	1547	}
1445		1548
1446	void	1549	void
1447	ev_prepare_start (EV_P_ struct ev_prepare *w)	1550	ev_prepare_start (EV_P_ struct ev_prepare *w)
1448	{	1551	{
1449	if (ev_is_active (w))	1552	if (expect_false (ev_is_active (w)))
1450	return;	1553	return;
1451		1554
1452	ev_start (EV_A_ (W)w, ++preparecnt);	1555	ev_start (EV_A_ (W)w, ++preparecnt);
1453	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1556	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1454	prepares [preparecnt - 1] = w;	1557	prepares [preparecnt - 1] = w;
1455	}	1558	}
1456		1559
1457	void	1560	void
1458	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1561	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1459	{	1562	{
1460	ev_clear_pending (EV_A_ (W)w);	1563	ev_clear_pending (EV_A_ (W)w);
1461	if (!ev_is_active (w))	1564	if (expect_false (!ev_is_active (w)))
1462	return;	1565	return;
1463		1566
1464	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1567	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1465	ev_stop (EV_A_ (W)w);	1568	ev_stop (EV_A_ (W)w);
1466	}	1569	}
1467		1570
1468	void	1571	void
1469	ev_check_start (EV_P_ struct ev_check *w)	1572	ev_check_start (EV_P_ struct ev_check *w)
1470	{	1573	{
1471	if (ev_is_active (w))	1574	if (expect_false (ev_is_active (w)))
1472	return;	1575	return;
1473		1576
1474	ev_start (EV_A_ (W)w, ++checkcnt);	1577	ev_start (EV_A_ (W)w, ++checkcnt);
1475	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1578	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1476	checks [checkcnt - 1] = w;	1579	checks [checkcnt - 1] = w;
1477	}	1580	}
1478		1581
1479	void	1582	void
1480	ev_check_stop (EV_P_ struct ev_check *w)	1583	ev_check_stop (EV_P_ struct ev_check *w)
1481	{	1584	{
1482	ev_clear_pending (EV_A_ (W)w);	1585	ev_clear_pending (EV_A_ (W)w);
1483	if (!ev_is_active (w))	1586	if (expect_false (!ev_is_active (w)))
1484	return;	1587	return;
1485		1588
1486	checks [((W)w)->active - 1] = checks [--checkcnt];	1589	checks [((W)w)->active - 1] = checks [--checkcnt];
1487	ev_stop (EV_A_ (W)w);	1590	ev_stop (EV_A_ (W)w);
1488	}	1591	}
…		…
1493		1596
1494	void	1597	void
1495	ev_signal_start (EV_P_ struct ev_signal *w)	1598	ev_signal_start (EV_P_ struct ev_signal *w)
1496	{	1599	{
1497	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1498	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1601	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1499	#endif	1602	#endif
1500	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1501	return;	1604	return;
1502		1605
1503	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1606	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1504		1607
1505	ev_start (EV_A_ (W)w, 1);	1608	ev_start (EV_A_ (W)w, 1);
1506	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1609	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1507	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1610	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1508		1611
1509	if (!((WL)w)->next)	1612	if (!((WL)w)->next)
1510	{	1613	{
1511	#if WIN32	1614	#if _WIN32
1512	signal (w->signum, sighandler);	1615	signal (w->signum, sighandler);
1513	#else	1616	#else
1514	struct sigaction sa;	1617	struct sigaction sa;
1515	sa.sa_handler = sighandler;	1618	sa.sa_handler = sighandler;
1516	sigfillset (&sa.sa_mask);	1619	sigfillset (&sa.sa_mask);
…		…
1522		1625
1523	void	1626	void
1524	ev_signal_stop (EV_P_ struct ev_signal *w)	1627	ev_signal_stop (EV_P_ struct ev_signal *w)
1525	{	1628	{
1526	ev_clear_pending (EV_A_ (W)w);	1629	ev_clear_pending (EV_A_ (W)w);
1527	if (!ev_is_active (w))	1630	if (expect_false (!ev_is_active (w)))
1528	return;	1631	return;
1529		1632
1530	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1633	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1531	ev_stop (EV_A_ (W)w);	1634	ev_stop (EV_A_ (W)w);
1532		1635
…		…
1536		1639
1537	void	1640	void
1538	ev_child_start (EV_P_ struct ev_child *w)	1641	ev_child_start (EV_P_ struct ev_child *w)
1539	{	1642	{
1540	#if EV_MULTIPLICITY	1643	#if EV_MULTIPLICITY
1541	assert (("child watchers are only supported in the default loop", loop == default_loop));	1644	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1542	#endif	1645	#endif
1543	if (ev_is_active (w))	1646	if (expect_false (ev_is_active (w)))
1544	return;	1647	return;
1545		1648
1546	ev_start (EV_A_ (W)w, 1);	1649	ev_start (EV_A_ (W)w, 1);
1547	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1650	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1548	}	1651	}
1549		1652
1550	void	1653	void
1551	ev_child_stop (EV_P_ struct ev_child *w)	1654	ev_child_stop (EV_P_ struct ev_child *w)
1552	{	1655	{
1553	ev_clear_pending (EV_A_ (W)w);	1656	ev_clear_pending (EV_A_ (W)w);
1554	if (ev_is_active (w))	1657	if (expect_false (!ev_is_active (w)))
1555	return;	1658	return;
1556		1659
1557	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1660	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1558	ev_stop (EV_A_ (W)w);	1661	ev_stop (EV_A_ (W)w);
1559	}	1662	}
…		…
1596	void	1699	void
1597	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1700	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1598	{	1701	{
1599	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1702	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1600		1703
1601	if (!once)	1704	if (expect_false (!once))
		1705	{
1602	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1706	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1603	else	1707	return;
1604	{	1708	}
		1709
1605	once->cb = cb;	1710	once->cb = cb;
1606	once->arg = arg;	1711	once->arg = arg;
1607		1712
1608	ev_init (&once->io, once_cb_io);	1713	ev_init (&once->io, once_cb_io);
1609	if (fd >= 0)	1714	if (fd >= 0)
1610	{	1715	{
1611	ev_io_set (&once->io, fd, events);	1716	ev_io_set (&once->io, fd, events);
1612	ev_io_start (EV_A_ &once->io);	1717	ev_io_start (EV_A_ &once->io);
1613	}	1718	}
1614		1719
1615	ev_init (&once->to, once_cb_to);	1720	ev_init (&once->to, once_cb_to);
1616	if (timeout >= 0.)	1721	if (timeout >= 0.)
1617	{	1722	{
1618	ev_timer_set (&once->to, timeout, 0.);	1723	ev_timer_set (&once->to, timeout, 0.);
1619	ev_timer_start (EV_A_ &once->to);	1724	ev_timer_start (EV_A_ &once->to);
1620	}
1621	}	1725	}
1622	}	1726	}
1623		1727
1624	#ifdef __cplusplus	1728	#ifdef __cplusplus
1625	}	1729	}

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Comparing libev/ev.c (file contents): Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC vs. Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC vs.
Revision 1.133 by root, Fri Nov 23 11:32:22 2007 UTC