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

Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.110 by root, Mon Nov 12 05:56:49 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
53	# endif	62	# endif
54		63
55	#endif	64	#endif
56		65
…		…
66	#include <sys/types.h>	75	#include <sys/types.h>
67	#include <time.h>	76	#include <time.h>
68		77
69	#include <signal.h>	78	#include <signal.h>
70		79
71	#ifndef WIN32	80	#ifndef _WIN32
72	# include <unistd.h>	81	# include <unistd.h>
73	# include <sys/time.h>	82	# include <sys/time.h>
74	# include <sys/wait.h>	83	# include <sys/wait.h>
		84	#else
		85	# define WIN32_LEAN_AND_MEAN
		86	# include <windows.h>
		87	# ifndef EV_SELECT_IS_WINSOCKET
		88	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	89	# endif
		90	#endif
		91
76	/**/	92	/**/
77		93
78	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
80	#endif	96	#endif
81		97
82	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
84	#endif	101	#endif
85		102
86	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	104	# ifdef _WIN32
		105	# define EV_USE_POLL 0
		106	# else
		107	# define EV_USE_POLL 1
		108	# endif
88	#endif	109	#endif
89		110
90	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
92	#endif	113	#endif
93		114
94	#ifndef EV_USE_KQUEUE	115	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	116	# define EV_USE_KQUEUE 0
96	#endif	117	#endif
97		118
98	#ifndef EV_USE_WIN32
99	# ifdef WIN32
100	# define EV_USE_WIN32 0 /* it does not exist, use select */
101	# undef EV_USE_SELECT
102	# define EV_USE_SELECT 1
103	# else
104	# define EV_USE_WIN32 0
105	# endif
106	#endif
107
108	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
109	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
110	#endif	121	#endif
111		122
112	/**/	123	/**/
		124
		125	/* darwin simply cannot be helped */
		126	#ifdef __APPLE__
		127	# undef EV_USE_POLL
		128	# undef EV_USE_KQUEUE
		129	#endif
113		130
114	#ifndef CLOCK_MONOTONIC	131	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	132	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	133	# define EV_USE_MONOTONIC 0
117	#endif	134	#endif
118		135
119	#ifndef CLOCK_REALTIME	136	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	137	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	138	# define EV_USE_REALTIME 0
		139	#endif
		140
		141	#if EV_SELECT_IS_WINSOCKET
		142	# include <winsock.h>
122	#endif	143	#endif
123		144
124	/**/	145	/**/
125		146
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	147	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
…		…
146	#define expect_true(expr) expect ((expr) != 0, 1)	167	#define expect_true(expr) expect ((expr) != 0, 1)
147		168
148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	169	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	170	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
150		171
		172	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		173
151	typedef struct ev_watcher *W;	174	typedef struct ev_watcher *W;
152	typedef struct ev_watcher_list *WL;	175	typedef struct ev_watcher_list *WL;
153	typedef struct ev_watcher_time *WT;	176	typedef struct ev_watcher_time *WT;
154		177
155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	178	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156		179
		180	#ifdef _WIN32
157	#include "ev_win32.c"	181	# include "ev_win32.c"
		182	#endif
158		183
159	/*****************************************************************************/	184	/*****************************************************************************/
160		185
161	static void (syserr_cb)(const char msg);	186	static void (syserr_cb)(const char msg);
162		187
…		…
209	typedef struct	234	typedef struct
210	{	235	{
211	WL head;	236	WL head;
212	unsigned char events;	237	unsigned char events;
213	unsigned char reify;	238	unsigned char reify;
		239	#if EV_SELECT_IS_WINSOCKET
		240	SOCKET handle;
		241	#endif
214	} ANFD;	242	} ANFD;
215		243
216	typedef struct	244	typedef struct
217	{	245	{
218	W w;	246	W w;
…		…
221		249
222	#if EV_MULTIPLICITY	250	#if EV_MULTIPLICITY
223		251
224	struct ev_loop	252	struct ev_loop
225	{	253	{
		254	ev_tstamp ev_rt_now;
		255	#define ev_rt_now ((loop)->ev_rt_now)
226	#define VAR(name,decl) decl;	256	#define VAR(name,decl) decl;
227	#include "ev_vars.h"	257	#include "ev_vars.h"
228	#undef VAR	258	#undef VAR
229	};	259	};
230	#include "ev_wrap.h"	260	#include "ev_wrap.h"
…		…
232	struct ev_loop default_loop_struct;	262	struct ev_loop default_loop_struct;
233	static struct ev_loop *default_loop;	263	static struct ev_loop *default_loop;
234		264
235	#else	265	#else
236		266
		267	ev_tstamp ev_rt_now;
237	#define VAR(name,decl) static decl;	268	#define VAR(name,decl) static decl;
238	#include "ev_vars.h"	269	#include "ev_vars.h"
239	#undef VAR	270	#undef VAR
240		271
241	static int default_loop;	272	static int default_loop;
242		273
243	#endif	274	#endif
244		275
245	/*****************************************************************************/	276	/*****************************************************************************/
246		277
247	inline ev_tstamp	278	ev_tstamp
248	ev_time (void)	279	ev_time (void)
249	{	280	{
250	#if EV_USE_REALTIME	281	#if EV_USE_REALTIME
251	struct timespec ts;	282	struct timespec ts;
252	clock_gettime (CLOCK_REALTIME, &ts);	283	clock_gettime (CLOCK_REALTIME, &ts);
…		…
279	{	310	{
280	return ev_rt_now;	311	return ev_rt_now;
281	}	312	}
282	#endif	313	#endif
283		314
284	#define array_roundsize(type,n) ((n) \| 4 & ~3)	315	#define array_roundsize(type,n) (((n) \| 4) & ~3)
285		316
286	#define array_needsize(type,base,cur,cnt,init) \	317	#define array_needsize(type,base,cur,cnt,init) \
287	if (expect_false ((cnt) > cur)) \	318	if (expect_false ((cnt) > cur)) \
288	{ \	319	{ \
289	int newcnt = cur; \	320	int newcnt = cur; \
…		…
304	stem ## max = array_roundsize (stem ## cnt >> 1); \	335	stem ## max = array_roundsize (stem ## cnt >> 1); \
305	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	336	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
306	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	337	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
307	}	338	}
308		339
309	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
310	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
311	#define array_free_microshit(stem) \
312	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
313
314	#define array_free(stem, idx) \	340	#define array_free(stem, idx) \
315	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	341	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
316		342
317	/*****************************************************************************/	343	/*****************************************************************************/
318		344
…		…
392	int events = 0;	418	int events = 0;
393		419
394	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	420	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
395	events \|= w->events;	421	events \|= w->events;
396		422
		423	#if EV_SELECT_IS_WINSOCKET
		424	if (events)
		425	{
		426	unsigned long argp;
		427	anfd->handle = _get_osfhandle (fd);
		428	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		429	}
		430	#endif
		431
397	anfd->reify = 0;	432	anfd->reify = 0;
398		433
399	method_modify (EV_A_ fd, anfd->events, events);	434	method_modify (EV_A_ fd, anfd->events, events);
400	anfd->events = events;	435	anfd->events = events;
401	}	436	}
…		…
429	}	464	}
430		465
431	static int	466	static int
432	fd_valid (int fd)	467	fd_valid (int fd)
433	{	468	{
434	#ifdef WIN32	469	#ifdef _WIN32
435	return !!win32_get_osfhandle (fd);	470	return _get_osfhandle (fd) != -1;
436	#else	471	#else
437	return fcntl (fd, F_GETFD) != -1;	472	return fcntl (fd, F_GETFD) != -1;
438	#endif	473	#endif
439	}	474	}
440		475
…		…
521	heap [k] = w;	556	heap [k] = w;
522	((W)heap [k])->active = k + 1;	557	((W)heap [k])->active = k + 1;
523	}	558	}
524		559
525	inline void	560	inline void
526	adjustheap (WT *heap, int N, int k, ev_tstamp at)	561	adjustheap (WT *heap, int N, int k)
527	{	562	{
528	ev_tstamp old_at = heap [k]->at;	563	upheap (heap, k);
529	heap [k]->at = at;
530
531	if (old_at < at)
532	downheap (heap, N, k);	564	downheap (heap, N, k);
533	else
534	upheap (heap, k);
535	}	565	}
536		566
537	/*****************************************************************************/	567	/*****************************************************************************/
538		568
539	typedef struct	569	typedef struct
…		…
562	}	592	}
563		593
564	static void	594	static void
565	sighandler (int signum)	595	sighandler (int signum)
566	{	596	{
567	#if WIN32	597	#if _WIN32
568	signal (signum, sighandler);	598	signal (signum, sighandler);
569	#endif	599	#endif
570		600
571	signals [signum - 1].gotsig = 1;	601	signals [signum - 1].gotsig = 1;
572		602
573	if (!gotsig)	603	if (!gotsig)
574	{	604	{
575	int old_errno = errno;	605	int old_errno = errno;
576	gotsig = 1;	606	gotsig = 1;
577	#ifdef WIN32
578	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
579	#else
580	write (sigpipe [1], &signum, 1);	607	write (sigpipe [1], &signum, 1);
581	#endif
582	errno = old_errno;	608	errno = old_errno;
583	}	609	}
584	}	610	}
585		611
586	void	612	void
…		…
606	static void	632	static void
607	sigcb (EV_P_ struct ev_io *iow, int revents)	633	sigcb (EV_P_ struct ev_io *iow, int revents)
608	{	634	{
609	int signum;	635	int signum;
610		636
611	#ifdef WIN32
612	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
613	#else
614	read (sigpipe [0], &revents, 1);	637	read (sigpipe [0], &revents, 1);
615	#endif
616	gotsig = 0;	638	gotsig = 0;
617		639
618	for (signum = signalmax; signum--; )	640	for (signum = signalmax; signum--; )
619	if (signals [signum].gotsig)	641	if (signals [signum].gotsig)
620	ev_feed_signal_event (EV_A_ signum + 1);	642	ev_feed_signal_event (EV_A_ signum + 1);
621	}	643	}
622		644
		645	inline void
		646	fd_intern (int fd)
		647	{
		648	#ifdef _WIN32
		649	int arg = 1;
		650	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		651	#else
		652	fcntl (fd, F_SETFD, FD_CLOEXEC);
		653	fcntl (fd, F_SETFL, O_NONBLOCK);
		654	#endif
		655	}
		656
623	static void	657	static void
624	siginit (EV_P)	658	siginit (EV_P)
625	{	659	{
626	#ifndef WIN32	660	fd_intern (sigpipe [0]);
627	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	661	fd_intern (sigpipe [1]);
628	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
629
630	/* rather than sort out wether we really need nb, set it */
631	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
632	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
633	#endif
634		662
635	ev_io_set (&sigev, sigpipe [0], EV_READ);	663	ev_io_set (&sigev, sigpipe [0], EV_READ);
636	ev_io_start (EV_A_ &sigev);	664	ev_io_start (EV_A_ &sigev);
637	ev_unref (EV_A); /* child watcher should not keep loop alive */	665	ev_unref (EV_A); /* child watcher should not keep loop alive */
638	}	666	}
639		667
640	/*****************************************************************************/	668	/*****************************************************************************/
641		669
642	static struct ev_child *childs [PID_HASHSIZE];	670	static struct ev_child *childs [PID_HASHSIZE];
643		671
644	#ifndef WIN32	672	#ifndef _WIN32
645		673
646	static struct ev_signal childev;	674	static struct ev_signal childev;
647		675
648	#ifndef WCONTINUED	676	#ifndef WCONTINUED
649	# define WCONTINUED 0	677	# define WCONTINUED 0
…		…
710		738
711	/* return true if we are running with elevated privileges and should ignore env variables */	739	/* return true if we are running with elevated privileges and should ignore env variables */
712	static int	740	static int
713	enable_secure (void)	741	enable_secure (void)
714	{	742	{
715	#ifdef WIN32	743	#ifdef _WIN32
716	return 0;	744	return 0;
717	#else	745	#else
718	return getuid () != geteuid ()	746	return getuid () != geteuid ()
719	\|\| getgid () != getegid ();	747	\|\| getgid () != getegid ();
720	#endif	748	#endif
…		…
725	{	753	{
726	return method;	754	return method;
727	}	755	}
728		756
729	static void	757	static void
730	loop_init (EV_P_ int methods)	758	loop_init (EV_P_ unsigned int flags)
731	{	759	{
732	if (!method)	760	if (!method)
733	{	761	{
734	#if EV_USE_MONOTONIC	762	#if EV_USE_MONOTONIC
735	{	763	{
…		…
742	ev_rt_now = ev_time ();	770	ev_rt_now = ev_time ();
743	mn_now = get_clock ();	771	mn_now = get_clock ();
744	now_floor = mn_now;	772	now_floor = mn_now;
745	rtmn_diff = ev_rt_now - mn_now;	773	rtmn_diff = ev_rt_now - mn_now;
746		774
747	if (methods == EVMETHOD_AUTO)	775	if (!(flags & EVMETHOD_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
748	if (!enable_secure () && getenv ("LIBEV_METHODS"))
749	methods = atoi (getenv ("LIBEV_METHODS"));	776	flags = atoi (getenv ("LIBEV_FLAGS"));
750	else	777
751	methods = EVMETHOD_ANY;	778	if (!(flags & 0x0000ffff))
		779	flags \|= 0x0000ffff;
752		780
753	method = 0;	781	method = 0;
754	#if EV_USE_WIN32
755	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
756	#endif
757	#if EV_USE_KQUEUE	782	#if EV_USE_KQUEUE
758	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	783	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
759	#endif	784	#endif
760	#if EV_USE_EPOLL	785	#if EV_USE_EPOLL
761	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	786	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
762	#endif	787	#endif
763	#if EV_USE_POLL	788	#if EV_USE_POLL
764	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	789	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
765	#endif	790	#endif
766	#if EV_USE_SELECT	791	#if EV_USE_SELECT
767	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	792	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
768	#endif	793	#endif
769		794
770	ev_init (&sigev, sigcb);	795	ev_init (&sigev, sigcb);
771	ev_set_priority (&sigev, EV_MAXPRI);	796	ev_set_priority (&sigev, EV_MAXPRI);
772	}	797	}
…		…
775	void	800	void
776	loop_destroy (EV_P)	801	loop_destroy (EV_P)
777	{	802	{
778	int i;	803	int i;
779		804
780	#if EV_USE_WIN32
781	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
782	#endif
783	#if EV_USE_KQUEUE	805	#if EV_USE_KQUEUE
784	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	806	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
785	#endif	807	#endif
786	#if EV_USE_EPOLL	808	#if EV_USE_EPOLL
787	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	809	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
795		817
796	for (i = NUMPRI; i--; )	818	for (i = NUMPRI; i--; )
797	array_free (pending, [i]);	819	array_free (pending, [i]);
798		820
799	/* have to use the microsoft-never-gets-it-right macro */	821	/* have to use the microsoft-never-gets-it-right macro */
800	array_free_microshit (fdchange);	822	array_free (fdchange, EMPTY);
801	array_free_microshit (timer);	823	array_free (timer, EMPTY);
802	array_free_microshit (periodic);	824	#if EV_PERIODICS
803	array_free_microshit (idle);	825	array_free (periodic, EMPTY);
804	array_free_microshit (prepare);	826	#endif
805	array_free_microshit (check);	827	array_free (idle, EMPTY);
		828	array_free (prepare, EMPTY);
		829	array_free (check, EMPTY);
806		830
807	method = 0;	831	method = 0;
808	}	832	}
809		833
810	static void	834	static void
…		…
835	postfork = 0;	859	postfork = 0;
836	}	860	}
837		861
838	#if EV_MULTIPLICITY	862	#if EV_MULTIPLICITY
839	struct ev_loop *	863	struct ev_loop *
840	ev_loop_new (int methods)	864	ev_loop_new (unsigned int flags)
841	{	865	{
842	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	866	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
843		867
844	memset (loop, 0, sizeof (struct ev_loop));	868	memset (loop, 0, sizeof (struct ev_loop));
845		869
846	loop_init (EV_A_ methods);	870	loop_init (EV_A_ flags);
847		871
848	if (ev_method (EV_A))	872	if (ev_method (EV_A))
849	return loop;	873	return loop;
850		874
851	return 0;	875	return 0;
…		…
869	#if EV_MULTIPLICITY	893	#if EV_MULTIPLICITY
870	struct ev_loop *	894	struct ev_loop *
871	#else	895	#else
872	int	896	int
873	#endif	897	#endif
874	ev_default_loop (int methods)	898	ev_default_loop (unsigned int flags)
875	{	899	{
876	if (sigpipe [0] == sigpipe [1])	900	if (sigpipe [0] == sigpipe [1])
877	if (pipe (sigpipe))	901	if (pipe (sigpipe))
878	return 0;	902	return 0;
879		903
…		…
883	struct ev_loop *loop = default_loop = &default_loop_struct;	907	struct ev_loop *loop = default_loop = &default_loop_struct;
884	#else	908	#else
885	default_loop = 1;	909	default_loop = 1;
886	#endif	910	#endif
887		911
888	loop_init (EV_A_ methods);	912	loop_init (EV_A_ flags);
889		913
890	if (ev_method (EV_A))	914	if (ev_method (EV_A))
891	{	915	{
892	siginit (EV_A);	916	siginit (EV_A);
893		917
894	#ifndef WIN32	918	#ifndef _WIN32
895	ev_signal_init (&childev, childcb, SIGCHLD);	919	ev_signal_init (&childev, childcb, SIGCHLD);
896	ev_set_priority (&childev, EV_MAXPRI);	920	ev_set_priority (&childev, EV_MAXPRI);
897	ev_signal_start (EV_A_ &childev);	921	ev_signal_start (EV_A_ &childev);
898	ev_unref (EV_A); /* child watcher should not keep loop alive */	922	ev_unref (EV_A); /* child watcher should not keep loop alive */
899	#endif	923	#endif
…		…
910	{	934	{
911	#if EV_MULTIPLICITY	935	#if EV_MULTIPLICITY
912	struct ev_loop *loop = default_loop;	936	struct ev_loop *loop = default_loop;
913	#endif	937	#endif
914		938
915	#ifndef WIN32	939	#ifndef _WIN32
916	ev_ref (EV_A); /* child watcher */	940	ev_ref (EV_A); /* child watcher */
917	ev_signal_stop (EV_A_ &childev);	941	ev_signal_stop (EV_A_ &childev);
918	#endif	942	#endif
919		943
920	ev_ref (EV_A); /* signal watcher */	944	ev_ref (EV_A); /* signal watcher */
…		…
980		1004
981	/* first reschedule or stop timer */	1005	/* first reschedule or stop timer */
982	if (w->repeat)	1006	if (w->repeat)
983	{	1007	{
984	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1008	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1009
985	((WT)w)->at = mn_now + w->repeat;	1010	((WT)w)->at += w->repeat;
		1011	if (((WT)w)->at < mn_now)
		1012	((WT)w)->at = mn_now;
		1013
986	downheap ((WT *)timers, timercnt, 0);	1014	downheap ((WT *)timers, timercnt, 0);
987	}	1015	}
988	else	1016	else
989	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1017	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
990		1018
991	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1019	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
992	}	1020	}
993	}	1021	}
994		1022
		1023	#if EV_PERIODICS
995	static void	1024	static void
996	periodics_reify (EV_P)	1025	periodics_reify (EV_P)
997	{	1026	{
998	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1027	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
999	{	1028	{
…		…
1002	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1031	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1003		1032
1004	/* first reschedule or stop timer */	1033	/* first reschedule or stop timer */
1005	if (w->reschedule_cb)	1034	if (w->reschedule_cb)
1006	{	1035	{
1007	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1036	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1008
1009	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1037	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1010	downheap ((WT *)periodics, periodiccnt, 0);	1038	downheap ((WT *)periodics, periodiccnt, 0);
1011	}	1039	}
1012	else if (w->interval)	1040	else if (w->interval)
1013	{	1041	{
…		…
1040		1068
1041	/* now rebuild the heap */	1069	/* now rebuild the heap */
1042	for (i = periodiccnt >> 1; i--; )	1070	for (i = periodiccnt >> 1; i--; )
1043	downheap ((WT *)periodics, periodiccnt, i);	1071	downheap ((WT *)periodics, periodiccnt, i);
1044	}	1072	}
		1073	#endif
1045		1074
1046	inline int	1075	inline int
1047	time_update_monotonic (EV_P)	1076	time_update_monotonic (EV_P)
1048	{	1077	{
1049	mn_now = get_clock ();	1078	mn_now = get_clock ();
…		…
1083	ev_rt_now = ev_time ();	1112	ev_rt_now = ev_time ();
1084	mn_now = get_clock ();	1113	mn_now = get_clock ();
1085	now_floor = mn_now;	1114	now_floor = mn_now;
1086	}	1115	}
1087		1116
		1117	# if EV_PERIODICS
1088	periodics_reschedule (EV_A);	1118	periodics_reschedule (EV_A);
		1119	# endif
1089	/* no timer adjustment, as the monotonic clock doesn't jump */	1120	/* no timer adjustment, as the monotonic clock doesn't jump */
1090	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1121	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1091	}	1122	}
1092	}	1123	}
1093	else	1124	else
…		…
1095	{	1126	{
1096	ev_rt_now = ev_time ();	1127	ev_rt_now = ev_time ();
1097		1128
1098	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1129	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1099	{	1130	{
		1131	#if EV_PERIODICS
1100	periodics_reschedule (EV_A);	1132	periodics_reschedule (EV_A);
		1133	#endif
1101		1134
1102	/* adjust timers. this is easy, as the offset is the same for all */	1135	/* adjust timers. this is easy, as the offset is the same for all */
1103	for (i = 0; i < timercnt; ++i)	1136	for (i = 0; i < timercnt; ++i)
1104	((WT)timers [i])->at += ev_rt_now - mn_now;	1137	((WT)timers [i])->at += ev_rt_now - mn_now;
1105	}	1138	}
…		…
1168	{	1201	{
1169	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1202	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1170	if (block > to) block = to;	1203	if (block > to) block = to;
1171	}	1204	}
1172		1205
		1206	#if EV_PERIODICS
1173	if (periodiccnt)	1207	if (periodiccnt)
1174	{	1208	{
1175	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1209	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1176	if (block > to) block = to;	1210	if (block > to) block = to;
1177	}	1211	}
		1212	#endif
1178		1213
1179	if (block < 0.) block = 0.;	1214	if (block < 0.) block = 0.;
1180	}	1215	}
1181		1216
1182	method_poll (EV_A_ block);	1217	method_poll (EV_A_ block);
…		…
1184	/* update ev_rt_now, do magic */	1219	/* update ev_rt_now, do magic */
1185	time_update (EV_A);	1220	time_update (EV_A);
1186		1221
1187	/* queue pending timers and reschedule them */	1222	/* queue pending timers and reschedule them */
1188	timers_reify (EV_A); /* relative timers called last */	1223	timers_reify (EV_A); /* relative timers called last */
		1224	#if EV_PERIODICS
1189	periodics_reify (EV_A); /* absolute timers called first */	1225	periodics_reify (EV_A); /* absolute timers called first */
		1226	#endif
1190		1227
1191	/* queue idle watchers unless io or timers are pending */	1228	/* queue idle watchers unless io or timers are pending */
1192	if (idlecnt && !any_pending (EV_A))	1229	if (idlecnt && !any_pending (EV_A))
1193	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1230	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1194		1231
…		…
1285	{	1322	{
1286	ev_clear_pending (EV_A_ (W)w);	1323	ev_clear_pending (EV_A_ (W)w);
1287	if (!ev_is_active (w))	1324	if (!ev_is_active (w))
1288	return;	1325	return;
1289		1326
		1327	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1328
1290	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1329	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1291	ev_stop (EV_A_ (W)w);	1330	ev_stop (EV_A_ (W)w);
1292		1331
1293	fd_change (EV_A_ w->fd);	1332	fd_change (EV_A_ w->fd);
1294	}	1333	}
…		…
1321	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1360	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1322		1361
1323	if (((W)w)->active < timercnt--)	1362	if (((W)w)->active < timercnt--)
1324	{	1363	{
1325	timers [((W)w)->active - 1] = timers [timercnt];	1364	timers [((W)w)->active - 1] = timers [timercnt];
1326	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1365	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1327	}	1366	}
1328		1367
1329	((WT)w)->at = w->repeat;	1368	((WT)w)->at -= mn_now;
1330		1369
1331	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1332	}	1371	}
1333		1372
1334	void	1373	void
1335	ev_timer_again (EV_P_ struct ev_timer *w)	1374	ev_timer_again (EV_P_ struct ev_timer *w)
1336	{	1375	{
1337	if (ev_is_active (w))	1376	if (ev_is_active (w))
1338	{	1377	{
1339	if (w->repeat)	1378	if (w->repeat)
		1379	{
		1380	((WT)w)->at = mn_now + w->repeat;
1340	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1381	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1382	}
1341	else	1383	else
1342	ev_timer_stop (EV_A_ w);	1384	ev_timer_stop (EV_A_ w);
1343	}	1385	}
1344	else if (w->repeat)	1386	else if (w->repeat)
1345	ev_timer_start (EV_A_ w);	1387	ev_timer_start (EV_A_ w);
1346	}	1388	}
1347		1389
		1390	#if EV_PERIODICS
1348	void	1391	void
1349	ev_periodic_start (EV_P_ struct ev_periodic *w)	1392	ev_periodic_start (EV_P_ struct ev_periodic *w)
1350	{	1393	{
1351	if (ev_is_active (w))	1394	if (ev_is_active (w))
1352	return;	1395	return;
…		…
1378	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1421	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1379		1422
1380	if (((W)w)->active < periodiccnt--)	1423	if (((W)w)->active < periodiccnt--)
1381	{	1424	{
1382	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1425	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1383	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1426	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1384	}	1427	}
1385		1428
1386	ev_stop (EV_A_ (W)w);	1429	ev_stop (EV_A_ (W)w);
1387	}	1430	}
1388		1431
…		…
1391	{	1434	{
1392	/* TODO: use adjustheap and recalculation */	1435	/* TODO: use adjustheap and recalculation */
1393	ev_periodic_stop (EV_A_ w);	1436	ev_periodic_stop (EV_A_ w);
1394	ev_periodic_start (EV_A_ w);	1437	ev_periodic_start (EV_A_ w);
1395	}	1438	}
		1439	#endif
1396		1440
1397	void	1441	void
1398	ev_idle_start (EV_P_ struct ev_idle *w)	1442	ev_idle_start (EV_P_ struct ev_idle *w)
1399	{	1443	{
1400	if (ev_is_active (w))	1444	if (ev_is_active (w))
…		…
1407		1451
1408	void	1452	void
1409	ev_idle_stop (EV_P_ struct ev_idle *w)	1453	ev_idle_stop (EV_P_ struct ev_idle *w)
1410	{	1454	{
1411	ev_clear_pending (EV_A_ (W)w);	1455	ev_clear_pending (EV_A_ (W)w);
1412	if (ev_is_active (w))	1456	if (!ev_is_active (w))
1413	return;	1457	return;
1414		1458
1415	idles [((W)w)->active - 1] = idles [--idlecnt];	1459	idles [((W)w)->active - 1] = idles [--idlecnt];
1416	ev_stop (EV_A_ (W)w);	1460	ev_stop (EV_A_ (W)w);
1417	}	1461	}
…		…
1429		1473
1430	void	1474	void
1431	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1475	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1432	{	1476	{
1433	ev_clear_pending (EV_A_ (W)w);	1477	ev_clear_pending (EV_A_ (W)w);
1434	if (ev_is_active (w))	1478	if (!ev_is_active (w))
1435	return;	1479	return;
1436		1480
1437	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1481	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1438	ev_stop (EV_A_ (W)w);	1482	ev_stop (EV_A_ (W)w);
1439	}	1483	}
…		…
1451		1495
1452	void	1496	void
1453	ev_check_stop (EV_P_ struct ev_check *w)	1497	ev_check_stop (EV_P_ struct ev_check *w)
1454	{	1498	{
1455	ev_clear_pending (EV_A_ (W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1456	if (ev_is_active (w))	1500	if (!ev_is_active (w))
1457	return;	1501	return;
1458		1502
1459	checks [((W)w)->active - 1] = checks [--checkcnt];	1503	checks [((W)w)->active - 1] = checks [--checkcnt];
1460	ev_stop (EV_A_ (W)w);	1504	ev_stop (EV_A_ (W)w);
1461	}	1505	}
…		…
1479	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1523	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1480	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1524	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1481		1525
1482	if (!((WL)w)->next)	1526	if (!((WL)w)->next)
1483	{	1527	{
1484	#if WIN32	1528	#if _WIN32
1485	signal (w->signum, sighandler);	1529	signal (w->signum, sighandler);
1486	#else	1530	#else
1487	struct sigaction sa;	1531	struct sigaction sa;
1488	sa.sa_handler = sighandler;	1532	sa.sa_handler = sighandler;
1489	sigfillset (&sa.sa_mask);	1533	sigfillset (&sa.sa_mask);
…		…
1522		1566
1523	void	1567	void
1524	ev_child_stop (EV_P_ struct ev_child *w)	1568	ev_child_stop (EV_P_ struct ev_child *w)
1525	{	1569	{
1526	ev_clear_pending (EV_A_ (W)w);	1570	ev_clear_pending (EV_A_ (W)w);
1527	if (ev_is_active (w))	1571	if (!ev_is_active (w))
1528	return;	1572	return;
1529		1573
1530	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1574	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1531	ev_stop (EV_A_ (W)w);	1575	ev_stop (EV_A_ (W)w);
1532	}	1576	}
…		…
1592	ev_timer_start (EV_A_ &once->to);	1636	ev_timer_start (EV_A_ &once->to);
1593	}	1637	}
1594	}	1638	}
1595	}	1639	}
1596		1640
		1641	#ifdef __cplusplus
		1642	}
		1643	#endif
		1644

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Comparing libev/ev.c (file contents): Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs. Revision 1.110 by root, Mon Nov 12 05:56:49 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.110 by root, Mon Nov 12 05:56:49 2007 UTC