[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 1.124 by root, Sat Nov 17 02:26:24 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
		62	# endif
		63
		64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
53	# endif	66	# endif
54		67
55	#endif	68	#endif
56		69
57	#include <math.h>	70	#include <math.h>
…		…
66	#include <sys/types.h>	79	#include <sys/types.h>
67	#include <time.h>	80	#include <time.h>
68		81
69	#include <signal.h>	82	#include <signal.h>
70		83
71	#ifndef WIN32	84	#ifndef _WIN32
72	# include <unistd.h>	85	# include <unistd.h>
73	# include <sys/time.h>	86	# include <sys/time.h>
74	# include <sys/wait.h>	87	# include <sys/wait.h>
		88	#else
		89	# define WIN32_LEAN_AND_MEAN
		90	# include <windows.h>
		91	# ifndef EV_SELECT_IS_WINSOCKET
		92	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	93	# endif
		94	#endif
		95
76	/**/	96	/**/
77		97
78	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 0
		100	#endif
		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 0
80	#endif	104	#endif
81		105
82	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
84	#endif	108	#endif
85		109
86	#ifndef EV_USE_POLL	110	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	111	# ifdef _WIN32
		112	# define EV_USE_POLL 0
		113	# else
		114	# define EV_USE_POLL 1
		115	# endif
88	#endif	116	#endif
89		117
90	#ifndef EV_USE_EPOLL	118	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	119	# define EV_USE_EPOLL 0
92	#endif	120	#endif
93		121
94	#ifndef EV_USE_KQUEUE	122	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	123	# define EV_USE_KQUEUE 0
96	#endif	124	#endif
97		125
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	126	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	127	# define EV_USE_PORT 0
110	#endif	128	#endif
111		129
112	/**/	130	/**/
		131
		132	/* darwin simply cannot be helped */
		133	#ifdef __APPLE__
		134	# undef EV_USE_POLL
		135	# undef EV_USE_KQUEUE
		136	#endif
113		137
114	#ifndef CLOCK_MONOTONIC	138	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	139	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	140	# define EV_USE_MONOTONIC 0
117	#endif	141	#endif
…		…
119	#ifndef CLOCK_REALTIME	143	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	144	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	145	# define EV_USE_REALTIME 0
122	#endif	146	#endif
123		147
		148	#if EV_SELECT_IS_WINSOCKET
		149	# include <winsock.h>
		150	#endif
		151
124	/**/	152	/**/
125		153
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	154	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	155	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	156	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	157	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		158
131	#ifdef EV_H	159	#ifdef EV_H
132	# include EV_H	160	# include EV_H
133	#else	161	#else
134	# include "ev.h"	162	# include "ev.h"
135	#endif	163	#endif
136		164
137	#if __GNUC__ >= 3	165	#if __GNUC__ >= 3
138	# define expect(expr,value) __builtin_expect ((expr),(value))	166	# define expect(expr,value) __builtin_expect ((expr),(value))
139	# define inline inline	167	# define inline static inline
140	#else	168	#else
141	# define expect(expr,value) (expr)	169	# define expect(expr,value) (expr)
142	# define inline static	170	# define inline static
143	#endif	171	#endif
144		172
…		…
146	#define expect_true(expr) expect ((expr) != 0, 1)	174	#define expect_true(expr) expect ((expr) != 0, 1)
147		175
148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	176	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	177	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
150		178
		179	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		180	#define EMPTY2(a,b) /* used to suppress some warnings */
		181
151	typedef struct ev_watcher *W;	182	typedef struct ev_watcher *W;
152	typedef struct ev_watcher_list *WL;	183	typedef struct ev_watcher_list *WL;
153	typedef struct ev_watcher_time *WT;	184	typedef struct ev_watcher_time *WT;
154		185
155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	186	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156		187
		188	#ifdef _WIN32
157	#include "ev_win32.c"	189	# include "ev_win32.c"
		190	#endif
158		191
159	/*****************************************************************************/	192	/*****************************************************************************/
160		193
161	static void (syserr_cb)(const char msg);	194	static void (syserr_cb)(const char msg);
162		195
…		…
209	typedef struct	242	typedef struct
210	{	243	{
211	WL head;	244	WL head;
212	unsigned char events;	245	unsigned char events;
213	unsigned char reify;	246	unsigned char reify;
		247	#if EV_SELECT_IS_WINSOCKET
		248	SOCKET handle;
		249	#endif
214	} ANFD;	250	} ANFD;
215		251
216	typedef struct	252	typedef struct
217	{	253	{
218	W w;	254	W w;
…		…
221		257
222	#if EV_MULTIPLICITY	258	#if EV_MULTIPLICITY
223		259
224	struct ev_loop	260	struct ev_loop
225	{	261	{
		262	ev_tstamp ev_rt_now;
		263	#define ev_rt_now ((loop)->ev_rt_now)
226	#define VAR(name,decl) decl;	264	#define VAR(name,decl) decl;
227	#include "ev_vars.h"	265	#include "ev_vars.h"
228	#undef VAR	266	#undef VAR
229	};	267	};
230	#include "ev_wrap.h"	268	#include "ev_wrap.h"
231		269
232	struct ev_loop default_loop_struct;	270	static struct ev_loop default_loop_struct;
233	static struct ev_loop *default_loop;	271	struct ev_loop *ev_default_loop_ptr;
234		272
235	#else	273	#else
236		274
		275	ev_tstamp ev_rt_now;
237	#define VAR(name,decl) static decl;	276	#define VAR(name,decl) static decl;
238	#include "ev_vars.h"	277	#include "ev_vars.h"
239	#undef VAR	278	#undef VAR
240		279
241	static int default_loop;	280	static int ev_default_loop_ptr;
242		281
243	#endif	282	#endif
244		283
245	/*****************************************************************************/	284	/*****************************************************************************/
246		285
247	inline ev_tstamp	286	ev_tstamp
248	ev_time (void)	287	ev_time (void)
249	{	288	{
250	#if EV_USE_REALTIME	289	#if EV_USE_REALTIME
251	struct timespec ts;	290	struct timespec ts;
252	clock_gettime (CLOCK_REALTIME, &ts);	291	clock_gettime (CLOCK_REALTIME, &ts);
…		…
279	{	318	{
280	return ev_rt_now;	319	return ev_rt_now;
281	}	320	}
282	#endif	321	#endif
283		322
284	#define array_roundsize(type,n) ((n) \| 4 & ~3)	323	#define array_roundsize(type,n) (((n) \| 4) & ~3)
285		324
286	#define array_needsize(type,base,cur,cnt,init) \	325	#define array_needsize(type,base,cur,cnt,init) \
287	if (expect_false ((cnt) > cur)) \	326	if (expect_false ((cnt) > cur)) \
288	{ \	327	{ \
289	int newcnt = cur; \	328	int newcnt = cur; \
…		…
304	stem ## max = array_roundsize (stem ## cnt >> 1); \	343	stem ## max = array_roundsize (stem ## cnt >> 1); \
305	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	344	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
306	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	345	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
307	}	346	}
308		347
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) \	348	#define array_free(stem, idx) \
315	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	349	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
316		350
317	/*****************************************************************************/	351	/*****************************************************************************/
318		352
…		…
332	void	366	void
333	ev_feed_event (EV_P_ void *w, int revents)	367	ev_feed_event (EV_P_ void *w, int revents)
334	{	368	{
335	W w_ = (W)w;	369	W w_ = (W)w;
336		370
337	if (w_->pending)	371	if (expect_false (w_->pending))
338	{	372	{
339	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	373	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
340	return;	374	return;
341	}	375	}
342		376
343	w_->pending = ++pendingcnt [ABSPRI (w_)];	377	w_->pending = ++pendingcnt [ABSPRI (w_)];
344	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	378	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
345	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	379	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
346	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	380	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
347	}	381	}
348		382
349	static void	383	static void
…		…
376	fd_event (EV_A_ fd, revents);	410	fd_event (EV_A_ fd, revents);
377	}	411	}
378		412
379	/*****************************************************************************/	413	/*****************************************************************************/
380		414
381	static void	415	inline void
382	fd_reify (EV_P)	416	fd_reify (EV_P)
383	{	417	{
384	int i;	418	int i;
385		419
386	for (i = 0; i < fdchangecnt; ++i)	420	for (i = 0; i < fdchangecnt; ++i)
…		…
392	int events = 0;	426	int events = 0;
393		427
394	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	428	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
395	events \|= w->events;	429	events \|= w->events;
396		430
		431	#if EV_SELECT_IS_WINSOCKET
		432	if (events)
		433	{
		434	unsigned long argp;
		435	anfd->handle = _get_osfhandle (fd);
		436	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		437	}
		438	#endif
		439
397	anfd->reify = 0;	440	anfd->reify = 0;
398		441
399	method_modify (EV_A_ fd, anfd->events, events);	442	method_modify (EV_A_ fd, anfd->events, events);
400	anfd->events = events;	443	anfd->events = events;
401	}	444	}
…		…
404	}	447	}
405		448
406	static void	449	static void
407	fd_change (EV_P_ int fd)	450	fd_change (EV_P_ int fd)
408	{	451	{
409	if (anfds [fd].reify)	452	if (expect_false (anfds [fd].reify))
410	return;	453	return;
411		454
412	anfds [fd].reify = 1;	455	anfds [fd].reify = 1;
413		456
414	++fdchangecnt;	457	++fdchangecnt;
415	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	458	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
416	fdchanges [fdchangecnt - 1] = fd;	459	fdchanges [fdchangecnt - 1] = fd;
417	}	460	}
418		461
419	static void	462	static void
420	fd_kill (EV_P_ int fd)	463	fd_kill (EV_P_ int fd)
…		…
426	ev_io_stop (EV_A_ w);	469	ev_io_stop (EV_A_ w);
427	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	470	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
428	}	471	}
429	}	472	}
430		473
431	static int	474	inline int
432	fd_valid (int fd)	475	fd_valid (int fd)
433	{	476	{
434	#ifdef WIN32	477	#ifdef _WIN32
435	return !!win32_get_osfhandle (fd);	478	return _get_osfhandle (fd) != -1;
436	#else	479	#else
437	return fcntl (fd, F_GETFD) != -1;	480	return fcntl (fd, F_GETFD) != -1;
438	#endif	481	#endif
439	}	482	}
440		483
…		…
521	heap [k] = w;	564	heap [k] = w;
522	((W)heap [k])->active = k + 1;	565	((W)heap [k])->active = k + 1;
523	}	566	}
524		567
525	inline void	568	inline void
526	adjustheap (WT *heap, int N, int k, ev_tstamp at)	569	adjustheap (WT *heap, int N, int k)
527	{	570	{
528	ev_tstamp old_at = heap [k]->at;	571	upheap (heap, k);
529	heap [k]->at = at;
530
531	if (old_at < at)
532	downheap (heap, N, k);	572	downheap (heap, N, k);
533	else
534	upheap (heap, k);
535	}	573	}
536		574
537	/*****************************************************************************/	575	/*****************************************************************************/
538		576
539	typedef struct	577	typedef struct
…		…
562	}	600	}
563		601
564	static void	602	static void
565	sighandler (int signum)	603	sighandler (int signum)
566	{	604	{
567	#if WIN32	605	#if _WIN32
568	signal (signum, sighandler);	606	signal (signum, sighandler);
569	#endif	607	#endif
570		608
571	signals [signum - 1].gotsig = 1;	609	signals [signum - 1].gotsig = 1;
572		610
573	if (!gotsig)	611	if (!gotsig)
574	{	612	{
575	int old_errno = errno;	613	int old_errno = errno;
576	gotsig = 1;	614	gotsig = 1;
577	#ifdef WIN32
578	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
579	#else
580	write (sigpipe [1], &signum, 1);	615	write (sigpipe [1], &signum, 1);
581	#endif
582	errno = old_errno;	616	errno = old_errno;
583	}	617	}
584	}	618	}
585		619
586	void	620	void
587	ev_feed_signal_event (EV_P_ int signum)	621	ev_feed_signal_event (EV_P_ int signum)
588	{	622	{
589	WL w;	623	WL w;
590		624
591	#if EV_MULTIPLICITY	625	#if EV_MULTIPLICITY
592	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	626	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
593	#endif	627	#endif
594		628
595	--signum;	629	--signum;
596		630
597	if (signum < 0 \|\| signum >= signalmax)	631	if (signum < 0 \|\| signum >= signalmax)
…		…
606	static void	640	static void
607	sigcb (EV_P_ struct ev_io *iow, int revents)	641	sigcb (EV_P_ struct ev_io *iow, int revents)
608	{	642	{
609	int signum;	643	int signum;
610		644
611	#ifdef WIN32
612	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
613	#else
614	read (sigpipe [0], &revents, 1);	645	read (sigpipe [0], &revents, 1);
615	#endif
616	gotsig = 0;	646	gotsig = 0;
617		647
618	for (signum = signalmax; signum--; )	648	for (signum = signalmax; signum--; )
619	if (signals [signum].gotsig)	649	if (signals [signum].gotsig)
620	ev_feed_signal_event (EV_A_ signum + 1);	650	ev_feed_signal_event (EV_A_ signum + 1);
621	}	651	}
622		652
623	static void	653	static void
		654	fd_intern (int fd)
		655	{
		656	#ifdef _WIN32
		657	int arg = 1;
		658	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		659	#else
		660	fcntl (fd, F_SETFD, FD_CLOEXEC);
		661	fcntl (fd, F_SETFL, O_NONBLOCK);
		662	#endif
		663	}
		664
		665	static void
624	siginit (EV_P)	666	siginit (EV_P)
625	{	667	{
626	#ifndef WIN32	668	fd_intern (sigpipe [0]);
627	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	669	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		670
635	ev_io_set (&sigev, sigpipe [0], EV_READ);	671	ev_io_set (&sigev, sigpipe [0], EV_READ);
636	ev_io_start (EV_A_ &sigev);	672	ev_io_start (EV_A_ &sigev);
637	ev_unref (EV_A); /* child watcher should not keep loop alive */	673	ev_unref (EV_A); /* child watcher should not keep loop alive */
638	}	674	}
639		675
640	/*****************************************************************************/	676	/*****************************************************************************/
641		677
642	static struct ev_child *childs [PID_HASHSIZE];	678	static struct ev_child *childs [PID_HASHSIZE];
643		679
644	#ifndef WIN32	680	#ifndef _WIN32
645		681
646	static struct ev_signal childev;	682	static struct ev_signal childev;
647		683
648	#ifndef WCONTINUED	684	#ifndef WCONTINUED
649	# define WCONTINUED 0	685	# define WCONTINUED 0
…		…
681		717
682	#endif	718	#endif
683		719
684	/*****************************************************************************/	720	/*****************************************************************************/
685		721
		722	#if EV_USE_PORT
		723	# include "ev_port.c"
		724	#endif
686	#if EV_USE_KQUEUE	725	#if EV_USE_KQUEUE
687	# include "ev_kqueue.c"	726	# include "ev_kqueue.c"
688	#endif	727	#endif
689	#if EV_USE_EPOLL	728	#if EV_USE_EPOLL
690	# include "ev_epoll.c"	729	# include "ev_epoll.c"
…		…
710		749
711	/* return true if we are running with elevated privileges and should ignore env variables */	750	/* return true if we are running with elevated privileges and should ignore env variables */
712	static int	751	static int
713	enable_secure (void)	752	enable_secure (void)
714	{	753	{
715	#ifdef WIN32	754	#ifdef _WIN32
716	return 0;	755	return 0;
717	#else	756	#else
718	return getuid () != geteuid ()	757	return getuid () != geteuid ()
719	\|\| getgid () != getegid ();	758	\|\| getgid () != getegid ();
720	#endif	759	#endif
721	}	760	}
722		761
723	int	762	unsigned int
724	ev_method (EV_P)	763	ev_method (EV_P)
725	{	764	{
726	return method;	765	return method;
727	}	766	}
728		767
729	static void	768	static void
730	loop_init (EV_P_ int methods)	769	loop_init (EV_P_ unsigned int flags)
731	{	770	{
732	if (!method)	771	if (!method)
733	{	772	{
734	#if EV_USE_MONOTONIC	773	#if EV_USE_MONOTONIC
735	{	774	{
…		…
742	ev_rt_now = ev_time ();	781	ev_rt_now = ev_time ();
743	mn_now = get_clock ();	782	mn_now = get_clock ();
744	now_floor = mn_now;	783	now_floor = mn_now;
745	rtmn_diff = ev_rt_now - mn_now;	784	rtmn_diff = ev_rt_now - mn_now;
746		785
747	if (methods == EVMETHOD_AUTO)	786	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
748	if (!enable_secure () && getenv ("LIBEV_METHODS"))
749	methods = atoi (getenv ("LIBEV_METHODS"));	787	flags = atoi (getenv ("LIBEV_FLAGS"));
750	else	788
751	methods = EVMETHOD_ANY;	789	if (!(flags & 0x0000ffff))
		790	flags \|= 0x0000ffff;
752		791
753	method = 0;	792	method = 0;
754	#if EV_USE_WIN32	793	#if EV_USE_PORT
755	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	794	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
756	#endif	795	#endif
757	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
758	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	797	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
759	#endif	798	#endif
760	#if EV_USE_EPOLL	799	#if EV_USE_EPOLL
761	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	800	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
762	#endif	801	#endif
763	#if EV_USE_POLL	802	#if EV_USE_POLL
764	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	803	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
765	#endif	804	#endif
766	#if EV_USE_SELECT	805	#if EV_USE_SELECT
767	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	806	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
768	#endif	807	#endif
769		808
770	ev_init (&sigev, sigcb);	809	ev_init (&sigev, sigcb);
771	ev_set_priority (&sigev, EV_MAXPRI);	810	ev_set_priority (&sigev, EV_MAXPRI);
772	}	811	}
773	}	812	}
774		813
775	void	814	static void
776	loop_destroy (EV_P)	815	loop_destroy (EV_P)
777	{	816	{
778	int i;	817	int i;
779		818
780	#if EV_USE_WIN32	819	#if EV_USE_PORT
781	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	820	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
782	#endif	821	#endif
783	#if EV_USE_KQUEUE	822	#if EV_USE_KQUEUE
784	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	823	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
785	#endif	824	#endif
786	#if EV_USE_EPOLL	825	#if EV_USE_EPOLL
…		…
795		834
796	for (i = NUMPRI; i--; )	835	for (i = NUMPRI; i--; )
797	array_free (pending, [i]);	836	array_free (pending, [i]);
798		837
799	/* have to use the microsoft-never-gets-it-right macro */	838	/* have to use the microsoft-never-gets-it-right macro */
800	array_free_microshit (fdchange);	839	array_free (fdchange, EMPTY0);
801	array_free_microshit (timer);	840	array_free (timer, EMPTY0);
802	array_free_microshit (periodic);	841	#if EV_PERIODICS
803	array_free_microshit (idle);	842	array_free (periodic, EMPTY0);
804	array_free_microshit (prepare);	843	#endif
805	array_free_microshit (check);	844	array_free (idle, EMPTY0);
		845	array_free (prepare, EMPTY0);
		846	array_free (check, EMPTY0);
806		847
807	method = 0;	848	method = 0;
808	}	849	}
809		850
810	static void	851	static void
811	loop_fork (EV_P)	852	loop_fork (EV_P)
812	{	853	{
		854	#if EV_USE_PORT
		855	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		856	#endif
		857	#if EV_USE_KQUEUE
		858	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		859	#endif
813	#if EV_USE_EPOLL	860	#if EV_USE_EPOLL
814	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	861	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
815	#endif
816	#if EV_USE_KQUEUE
817	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
818	#endif	862	#endif
819		863
820	if (ev_is_active (&sigev))	864	if (ev_is_active (&sigev))
821	{	865	{
822	/* default loop */	866	/* default loop */
…		…
835	postfork = 0;	879	postfork = 0;
836	}	880	}
837		881
838	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
839	struct ev_loop *	883	struct ev_loop *
840	ev_loop_new (int methods)	884	ev_loop_new (unsigned int flags)
841	{	885	{
842	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	886	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
843		887
844	memset (loop, 0, sizeof (struct ev_loop));	888	memset (loop, 0, sizeof (struct ev_loop));
845		889
846	loop_init (EV_A_ methods);	890	loop_init (EV_A_ flags);
847		891
848	if (ev_method (EV_A))	892	if (ev_method (EV_A))
849	return loop;	893	return loop;
850		894
851	return 0;	895	return 0;
…		…
866		910
867	#endif	911	#endif
868		912
869	#if EV_MULTIPLICITY	913	#if EV_MULTIPLICITY
870	struct ev_loop *	914	struct ev_loop *
		915	ev_default_loop_ (unsigned int flags)
871	#else	916	#else
872	int	917	int
		918	ev_default_loop (unsigned int flags)
873	#endif	919	#endif
874	ev_default_loop (int methods)
875	{	920	{
876	if (sigpipe [0] == sigpipe [1])	921	if (sigpipe [0] == sigpipe [1])
877	if (pipe (sigpipe))	922	if (pipe (sigpipe))
878	return 0;	923	return 0;
879		924
880	if (!default_loop)	925	if (!ev_default_loop_ptr)
881	{	926	{
882	#if EV_MULTIPLICITY	927	#if EV_MULTIPLICITY
883	struct ev_loop *loop = default_loop = &default_loop_struct;	928	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
884	#else	929	#else
885	default_loop = 1;	930	ev_default_loop_ptr = 1;
886	#endif	931	#endif
887		932
888	loop_init (EV_A_ methods);	933	loop_init (EV_A_ flags);
889		934
890	if (ev_method (EV_A))	935	if (ev_method (EV_A))
891	{	936	{
892	siginit (EV_A);	937	siginit (EV_A);
893		938
894	#ifndef WIN32	939	#ifndef _WIN32
895	ev_signal_init (&childev, childcb, SIGCHLD);	940	ev_signal_init (&childev, childcb, SIGCHLD);
896	ev_set_priority (&childev, EV_MAXPRI);	941	ev_set_priority (&childev, EV_MAXPRI);
897	ev_signal_start (EV_A_ &childev);	942	ev_signal_start (EV_A_ &childev);
898	ev_unref (EV_A); /* child watcher should not keep loop alive */	943	ev_unref (EV_A); /* child watcher should not keep loop alive */
899	#endif	944	#endif
900	}	945	}
901	else	946	else
902	default_loop = 0;	947	ev_default_loop_ptr = 0;
903	}	948	}
904		949
905	return default_loop;	950	return ev_default_loop_ptr;
906	}	951	}
907		952
908	void	953	void
909	ev_default_destroy (void)	954	ev_default_destroy (void)
910	{	955	{
911	#if EV_MULTIPLICITY	956	#if EV_MULTIPLICITY
912	struct ev_loop *loop = default_loop;	957	struct ev_loop *loop = ev_default_loop_ptr;
913	#endif	958	#endif
914		959
915	#ifndef WIN32	960	#ifndef _WIN32
916	ev_ref (EV_A); /* child watcher */	961	ev_ref (EV_A); /* child watcher */
917	ev_signal_stop (EV_A_ &childev);	962	ev_signal_stop (EV_A_ &childev);
918	#endif	963	#endif
919		964
920	ev_ref (EV_A); /* signal watcher */	965	ev_ref (EV_A); /* signal watcher */
…		…
928		973
929	void	974	void
930	ev_default_fork (void)	975	ev_default_fork (void)
931	{	976	{
932	#if EV_MULTIPLICITY	977	#if EV_MULTIPLICITY
933	struct ev_loop *loop = default_loop;	978	struct ev_loop *loop = ev_default_loop_ptr;
934	#endif	979	#endif
935		980
936	if (method)	981	if (method)
937	postfork = 1;	982	postfork = 1;
938	}	983	}
…		…
949	return 1;	994	return 1;
950		995
951	return 0;	996	return 0;
952	}	997	}
953		998
954	static void	999	inline void
955	call_pending (EV_P)	1000	call_pending (EV_P)
956	{	1001	{
957	int pri;	1002	int pri;
958		1003
959	for (pri = NUMPRI; pri--; )	1004	for (pri = NUMPRI; pri--; )
960	while (pendingcnt [pri])	1005	while (pendingcnt [pri])
961	{	1006	{
962	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1007	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
963		1008
964	if (p->w)	1009	if (expect_true (p->w))
965	{	1010	{
966	p->w->pending = 0;	1011	p->w->pending = 0;
967	EV_CB_INVOKE (p->w, p->events);	1012	EV_CB_INVOKE (p->w, p->events);
968	}	1013	}
969	}	1014	}
970	}	1015	}
971		1016
972	static void	1017	inline void
973	timers_reify (EV_P)	1018	timers_reify (EV_P)
974	{	1019	{
975	while (timercnt && ((WT)timers [0])->at <= mn_now)	1020	while (timercnt && ((WT)timers [0])->at <= mn_now)
976	{	1021	{
977	struct ev_timer *w = timers [0];	1022	struct ev_timer *w = timers [0];
…		…
980		1025
981	/* first reschedule or stop timer */	1026	/* first reschedule or stop timer */
982	if (w->repeat)	1027	if (w->repeat)
983	{	1028	{
984	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1029	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1030
985	((WT)w)->at = mn_now + w->repeat;	1031	((WT)w)->at += w->repeat;
		1032	if (((WT)w)->at < mn_now)
		1033	((WT)w)->at = mn_now;
		1034
986	downheap ((WT *)timers, timercnt, 0);	1035	downheap ((WT *)timers, timercnt, 0);
987	}	1036	}
988	else	1037	else
989	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1038	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
990		1039
991	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1040	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
992	}	1041	}
993	}	1042	}
994		1043
995	static void	1044	#if EV_PERIODICS
		1045	inline void
996	periodics_reify (EV_P)	1046	periodics_reify (EV_P)
997	{	1047	{
998	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1048	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
999	{	1049	{
1000	struct ev_periodic *w = periodics [0];	1050	struct ev_periodic *w = periodics [0];
…		…
1002	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1052	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1003		1053
1004	/* first reschedule or stop timer */	1054	/* first reschedule or stop timer */
1005	if (w->reschedule_cb)	1055	if (w->reschedule_cb)
1006	{	1056	{
1007	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1057	((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));	1058	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1010	downheap ((WT *)periodics, periodiccnt, 0);	1059	downheap ((WT *)periodics, periodiccnt, 0);
1011	}	1060	}
1012	else if (w->interval)	1061	else if (w->interval)
1013	{	1062	{
…		…
1040		1089
1041	/* now rebuild the heap */	1090	/* now rebuild the heap */
1042	for (i = periodiccnt >> 1; i--; )	1091	for (i = periodiccnt >> 1; i--; )
1043	downheap ((WT *)periodics, periodiccnt, i);	1092	downheap ((WT *)periodics, periodiccnt, i);
1044	}	1093	}
		1094	#endif
1045		1095
1046	inline int	1096	inline int
1047	time_update_monotonic (EV_P)	1097	time_update_monotonic (EV_P)
1048	{	1098	{
1049	mn_now = get_clock ();	1099	mn_now = get_clock ();
…		…
1059	ev_rt_now = ev_time ();	1109	ev_rt_now = ev_time ();
1060	return 1;	1110	return 1;
1061	}	1111	}
1062	}	1112	}
1063		1113
1064	static void	1114	inline void
1065	time_update (EV_P)	1115	time_update (EV_P)
1066	{	1116	{
1067	int i;	1117	int i;
1068		1118
1069	#if EV_USE_MONOTONIC	1119	#if EV_USE_MONOTONIC
…		…
1083	ev_rt_now = ev_time ();	1133	ev_rt_now = ev_time ();
1084	mn_now = get_clock ();	1134	mn_now = get_clock ();
1085	now_floor = mn_now;	1135	now_floor = mn_now;
1086	}	1136	}
1087		1137
		1138	# if EV_PERIODICS
1088	periodics_reschedule (EV_A);	1139	periodics_reschedule (EV_A);
		1140	# endif
1089	/* no timer adjustment, as the monotonic clock doesn't jump */	1141	/* no timer adjustment, as the monotonic clock doesn't jump */
1090	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1142	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1091	}	1143	}
1092	}	1144	}
1093	else	1145	else
…		…
1095	{	1147	{
1096	ev_rt_now = ev_time ();	1148	ev_rt_now = ev_time ();
1097		1149
1098	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1150	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1099	{	1151	{
		1152	#if EV_PERIODICS
1100	periodics_reschedule (EV_A);	1153	periodics_reschedule (EV_A);
		1154	#endif
1101		1155
1102	/* adjust timers. this is easy, as the offset is the same for all */	1156	/* adjust timers. this is easy, as the offset is the same for all */
1103	for (i = 0; i < timercnt; ++i)	1157	for (i = 0; i < timercnt; ++i)
1104	((WT)timers [i])->at += ev_rt_now - mn_now;	1158	((WT)timers [i])->at += ev_rt_now - mn_now;
1105	}	1159	}
…		…
1126	ev_loop (EV_P_ int flags)	1180	ev_loop (EV_P_ int flags)
1127	{	1181	{
1128	double block;	1182	double block;
1129	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1183	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1130		1184
1131	do	1185	while (activecnt)
1132	{	1186	{
1133	/* queue check watchers (and execute them) */	1187	/* queue check watchers (and execute them) */
1134	if (expect_false (preparecnt))	1188	if (expect_false (preparecnt))
1135	{	1189	{
1136	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1190	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1168	{	1222	{
1169	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1223	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1170	if (block > to) block = to;	1224	if (block > to) block = to;
1171	}	1225	}
1172		1226
		1227	#if EV_PERIODICS
1173	if (periodiccnt)	1228	if (periodiccnt)
1174	{	1229	{
1175	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1230	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1176	if (block > to) block = to;	1231	if (block > to) block = to;
1177	}	1232	}
		1233	#endif
1178		1234
1179	if (block < 0.) block = 0.;	1235	if (expect_false (block < 0.)) block = 0.;
1180	}	1236	}
1181		1237
1182	method_poll (EV_A_ block);	1238	method_poll (EV_A_ block);
1183		1239
1184	/* update ev_rt_now, do magic */	1240	/* update ev_rt_now, do magic */
1185	time_update (EV_A);	1241	time_update (EV_A);
1186		1242
1187	/* queue pending timers and reschedule them */	1243	/* queue pending timers and reschedule them */
1188	timers_reify (EV_A); /* relative timers called last */	1244	timers_reify (EV_A); /* relative timers called last */
		1245	#if EV_PERIODICS
1189	periodics_reify (EV_A); /* absolute timers called first */	1246	periodics_reify (EV_A); /* absolute timers called first */
		1247	#endif
1190		1248
1191	/* queue idle watchers unless io or timers are pending */	1249	/* queue idle watchers unless io or timers are pending */
1192	if (idlecnt && !any_pending (EV_A))	1250	if (idlecnt && !any_pending (EV_A))
1193	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1251	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1194		1252
1195	/* queue check watchers, to be executed first */	1253	/* queue check watchers, to be executed first */
1196	if (checkcnt)	1254	if (expect_false (checkcnt))
1197	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1255	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1198		1256
1199	call_pending (EV_A);	1257	call_pending (EV_A);
		1258
		1259	if (expect_false (loop_done))
		1260	break;
1200	}	1261	}
1201	while (activecnt && !loop_done);
1202		1262
1203	if (loop_done != 2)	1263	if (loop_done != 2)
1204	loop_done = 0;	1264	loop_done = 0;
1205	}	1265	}
1206		1266
…		…
1266	void	1326	void
1267	ev_io_start (EV_P_ struct ev_io *w)	1327	ev_io_start (EV_P_ struct ev_io *w)
1268	{	1328	{
1269	int fd = w->fd;	1329	int fd = w->fd;
1270		1330
1271	if (ev_is_active (w))	1331	if (expect_false (ev_is_active (w)))
1272	return;	1332	return;
1273		1333
1274	assert (("ev_io_start called with negative fd", fd >= 0));	1334	assert (("ev_io_start called with negative fd", fd >= 0));
1275		1335
1276	ev_start (EV_A_ (W)w, 1);	1336	ev_start (EV_A_ (W)w, 1);
…		…
1282		1342
1283	void	1343	void
1284	ev_io_stop (EV_P_ struct ev_io *w)	1344	ev_io_stop (EV_P_ struct ev_io *w)
1285	{	1345	{
1286	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1287	if (!ev_is_active (w))	1347	if (expect_false (!ev_is_active (w)))
1288	return;	1348	return;
		1349
		1350	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1289		1351
1290	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1352	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1291	ev_stop (EV_A_ (W)w);	1353	ev_stop (EV_A_ (W)w);
1292		1354
1293	fd_change (EV_A_ w->fd);	1355	fd_change (EV_A_ w->fd);
1294	}	1356	}
1295		1357
1296	void	1358	void
1297	ev_timer_start (EV_P_ struct ev_timer *w)	1359	ev_timer_start (EV_P_ struct ev_timer *w)
1298	{	1360	{
1299	if (ev_is_active (w))	1361	if (expect_false (ev_is_active (w)))
1300	return;	1362	return;
1301		1363
1302	((WT)w)->at += mn_now;	1364	((WT)w)->at += mn_now;
1303		1365
1304	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1366	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1305		1367
1306	ev_start (EV_A_ (W)w, ++timercnt);	1368	ev_start (EV_A_ (W)w, ++timercnt);
1307	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1369	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1308	timers [timercnt - 1] = w;	1370	timers [timercnt - 1] = w;
1309	upheap ((WT *)timers, timercnt - 1);	1371	upheap ((WT *)timers, timercnt - 1);
1310		1372
1311	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1373	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1312	}	1374	}
1313		1375
1314	void	1376	void
1315	ev_timer_stop (EV_P_ struct ev_timer *w)	1377	ev_timer_stop (EV_P_ struct ev_timer *w)
1316	{	1378	{
1317	ev_clear_pending (EV_A_ (W)w);	1379	ev_clear_pending (EV_A_ (W)w);
1318	if (!ev_is_active (w))	1380	if (expect_false (!ev_is_active (w)))
1319	return;	1381	return;
1320		1382
1321	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1383	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1322		1384
1323	if (((W)w)->active < timercnt--)	1385	if (expect_true (((W)w)->active < timercnt--))
1324	{	1386	{
1325	timers [((W)w)->active - 1] = timers [timercnt];	1387	timers [((W)w)->active - 1] = timers [timercnt];
1326	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1388	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1327	}	1389	}
1328		1390
1329	((WT)w)->at = w->repeat;	1391	((WT)w)->at -= mn_now;
1330		1392
1331	ev_stop (EV_A_ (W)w);	1393	ev_stop (EV_A_ (W)w);
1332	}	1394	}
1333		1395
1334	void	1396	void
1335	ev_timer_again (EV_P_ struct ev_timer *w)	1397	ev_timer_again (EV_P_ struct ev_timer *w)
1336	{	1398	{
1337	if (ev_is_active (w))	1399	if (ev_is_active (w))
1338	{	1400	{
1339	if (w->repeat)	1401	if (w->repeat)
		1402	{
		1403	((WT)w)->at = mn_now + w->repeat;
1340	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1404	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1405	}
1341	else	1406	else
1342	ev_timer_stop (EV_A_ w);	1407	ev_timer_stop (EV_A_ w);
1343	}	1408	}
1344	else if (w->repeat)	1409	else if (w->repeat)
		1410	{
		1411	w->at = w->repeat;
1345	ev_timer_start (EV_A_ w);	1412	ev_timer_start (EV_A_ w);
		1413	}
1346	}	1414	}
1347		1415
		1416	#if EV_PERIODICS
1348	void	1417	void
1349	ev_periodic_start (EV_P_ struct ev_periodic *w)	1418	ev_periodic_start (EV_P_ struct ev_periodic *w)
1350	{	1419	{
1351	if (ev_is_active (w))	1420	if (expect_false (ev_is_active (w)))
1352	return;	1421	return;
1353		1422
1354	if (w->reschedule_cb)	1423	if (w->reschedule_cb)
1355	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1424	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1356	else if (w->interval)	1425	else if (w->interval)
…		…
1359	/* this formula differs from the one in periodic_reify because we do not always round up */	1428	/* this formula differs from the one in periodic_reify because we do not always round up */
1360	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1429	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1361	}	1430	}
1362		1431
1363	ev_start (EV_A_ (W)w, ++periodiccnt);	1432	ev_start (EV_A_ (W)w, ++periodiccnt);
1364	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1433	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1365	periodics [periodiccnt - 1] = w;	1434	periodics [periodiccnt - 1] = w;
1366	upheap ((WT *)periodics, periodiccnt - 1);	1435	upheap ((WT *)periodics, periodiccnt - 1);
1367		1436
1368	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1437	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1369	}	1438	}
1370		1439
1371	void	1440	void
1372	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1441	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1373	{	1442	{
1374	ev_clear_pending (EV_A_ (W)w);	1443	ev_clear_pending (EV_A_ (W)w);
1375	if (!ev_is_active (w))	1444	if (expect_false (!ev_is_active (w)))
1376	return;	1445	return;
1377		1446
1378	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1447	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1379		1448
1380	if (((W)w)->active < periodiccnt--)	1449	if (expect_true (((W)w)->active < periodiccnt--))
1381	{	1450	{
1382	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1451	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1383	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1452	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1384	}	1453	}
1385		1454
1386	ev_stop (EV_A_ (W)w);	1455	ev_stop (EV_A_ (W)w);
1387	}	1456	}
1388		1457
…		…
1391	{	1460	{
1392	/* TODO: use adjustheap and recalculation */	1461	/* TODO: use adjustheap and recalculation */
1393	ev_periodic_stop (EV_A_ w);	1462	ev_periodic_stop (EV_A_ w);
1394	ev_periodic_start (EV_A_ w);	1463	ev_periodic_start (EV_A_ w);
1395	}	1464	}
		1465	#endif
1396		1466
1397	void	1467	void
1398	ev_idle_start (EV_P_ struct ev_idle *w)	1468	ev_idle_start (EV_P_ struct ev_idle *w)
1399	{	1469	{
1400	if (ev_is_active (w))	1470	if (expect_false (ev_is_active (w)))
1401	return;	1471	return;
1402		1472
1403	ev_start (EV_A_ (W)w, ++idlecnt);	1473	ev_start (EV_A_ (W)w, ++idlecnt);
1404	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1474	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1405	idles [idlecnt - 1] = w;	1475	idles [idlecnt - 1] = w;
1406	}	1476	}
1407		1477
1408	void	1478	void
1409	ev_idle_stop (EV_P_ struct ev_idle *w)	1479	ev_idle_stop (EV_P_ struct ev_idle *w)
1410	{	1480	{
1411	ev_clear_pending (EV_A_ (W)w);	1481	ev_clear_pending (EV_A_ (W)w);
1412	if (ev_is_active (w))	1482	if (expect_false (!ev_is_active (w)))
1413	return;	1483	return;
1414		1484
1415	idles [((W)w)->active - 1] = idles [--idlecnt];	1485	idles [((W)w)->active - 1] = idles [--idlecnt];
1416	ev_stop (EV_A_ (W)w);	1486	ev_stop (EV_A_ (W)w);
1417	}	1487	}
1418		1488
1419	void	1489	void
1420	ev_prepare_start (EV_P_ struct ev_prepare *w)	1490	ev_prepare_start (EV_P_ struct ev_prepare *w)
1421	{	1491	{
1422	if (ev_is_active (w))	1492	if (expect_false (ev_is_active (w)))
1423	return;	1493	return;
1424		1494
1425	ev_start (EV_A_ (W)w, ++preparecnt);	1495	ev_start (EV_A_ (W)w, ++preparecnt);
1426	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1496	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1427	prepares [preparecnt - 1] = w;	1497	prepares [preparecnt - 1] = w;
1428	}	1498	}
1429		1499
1430	void	1500	void
1431	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1501	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1432	{	1502	{
1433	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1434	if (ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1435	return;	1505	return;
1436		1506
1437	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1507	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1438	ev_stop (EV_A_ (W)w);	1508	ev_stop (EV_A_ (W)w);
1439	}	1509	}
1440		1510
1441	void	1511	void
1442	ev_check_start (EV_P_ struct ev_check *w)	1512	ev_check_start (EV_P_ struct ev_check *w)
1443	{	1513	{
1444	if (ev_is_active (w))	1514	if (expect_false (ev_is_active (w)))
1445	return;	1515	return;
1446		1516
1447	ev_start (EV_A_ (W)w, ++checkcnt);	1517	ev_start (EV_A_ (W)w, ++checkcnt);
1448	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1518	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1449	checks [checkcnt - 1] = w;	1519	checks [checkcnt - 1] = w;
1450	}	1520	}
1451		1521
1452	void	1522	void
1453	ev_check_stop (EV_P_ struct ev_check *w)	1523	ev_check_stop (EV_P_ struct ev_check *w)
1454	{	1524	{
1455	ev_clear_pending (EV_A_ (W)w);	1525	ev_clear_pending (EV_A_ (W)w);
1456	if (ev_is_active (w))	1526	if (expect_false (!ev_is_active (w)))
1457	return;	1527	return;
1458		1528
1459	checks [((W)w)->active - 1] = checks [--checkcnt];	1529	checks [((W)w)->active - 1] = checks [--checkcnt];
1460	ev_stop (EV_A_ (W)w);	1530	ev_stop (EV_A_ (W)w);
1461	}	1531	}
…		…
1466		1536
1467	void	1537	void
1468	ev_signal_start (EV_P_ struct ev_signal *w)	1538	ev_signal_start (EV_P_ struct ev_signal *w)
1469	{	1539	{
1470	#if EV_MULTIPLICITY	1540	#if EV_MULTIPLICITY
1471	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1541	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1472	#endif	1542	#endif
1473	if (ev_is_active (w))	1543	if (expect_false (ev_is_active (w)))
1474	return;	1544	return;
1475		1545
1476	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1546	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1477		1547
1478	ev_start (EV_A_ (W)w, 1);	1548	ev_start (EV_A_ (W)w, 1);
1479	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1549	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1480	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1550	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1481		1551
1482	if (!((WL)w)->next)	1552	if (!((WL)w)->next)
1483	{	1553	{
1484	#if WIN32	1554	#if _WIN32
1485	signal (w->signum, sighandler);	1555	signal (w->signum, sighandler);
1486	#else	1556	#else
1487	struct sigaction sa;	1557	struct sigaction sa;
1488	sa.sa_handler = sighandler;	1558	sa.sa_handler = sighandler;
1489	sigfillset (&sa.sa_mask);	1559	sigfillset (&sa.sa_mask);
…		…
1495		1565
1496	void	1566	void
1497	ev_signal_stop (EV_P_ struct ev_signal *w)	1567	ev_signal_stop (EV_P_ struct ev_signal *w)
1498	{	1568	{
1499	ev_clear_pending (EV_A_ (W)w);	1569	ev_clear_pending (EV_A_ (W)w);
1500	if (!ev_is_active (w))	1570	if (expect_false (!ev_is_active (w)))
1501	return;	1571	return;
1502		1572
1503	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1573	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1504	ev_stop (EV_A_ (W)w);	1574	ev_stop (EV_A_ (W)w);
1505		1575
…		…
1509		1579
1510	void	1580	void
1511	ev_child_start (EV_P_ struct ev_child *w)	1581	ev_child_start (EV_P_ struct ev_child *w)
1512	{	1582	{
1513	#if EV_MULTIPLICITY	1583	#if EV_MULTIPLICITY
1514	assert (("child watchers are only supported in the default loop", loop == default_loop));	1584	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1515	#endif	1585	#endif
1516	if (ev_is_active (w))	1586	if (expect_false (ev_is_active (w)))
1517	return;	1587	return;
1518		1588
1519	ev_start (EV_A_ (W)w, 1);	1589	ev_start (EV_A_ (W)w, 1);
1520	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1590	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1521	}	1591	}
1522		1592
1523	void	1593	void
1524	ev_child_stop (EV_P_ struct ev_child *w)	1594	ev_child_stop (EV_P_ struct ev_child *w)
1525	{	1595	{
1526	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1527	if (ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1528	return;	1598	return;
1529		1599
1530	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1600	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1531	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1532	}	1602	}
…		…
1569	void	1639	void
1570	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1640	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1571	{	1641	{
1572	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1642	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1573		1643
1574	if (!once)	1644	if (expect_false (!once))
		1645	{
1575	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1576	else	1647	return;
1577	{	1648	}
		1649
1578	once->cb = cb;	1650	once->cb = cb;
1579	once->arg = arg;	1651	once->arg = arg;
1580		1652
1581	ev_init (&once->io, once_cb_io);	1653	ev_init (&once->io, once_cb_io);
1582	if (fd >= 0)	1654	if (fd >= 0)
1583	{	1655	{
1584	ev_io_set (&once->io, fd, events);	1656	ev_io_set (&once->io, fd, events);
1585	ev_io_start (EV_A_ &once->io);	1657	ev_io_start (EV_A_ &once->io);
1586	}	1658	}
1587		1659
1588	ev_init (&once->to, once_cb_to);	1660	ev_init (&once->to, once_cb_to);
1589	if (timeout >= 0.)	1661	if (timeout >= 0.)
1590	{	1662	{
1591	ev_timer_set (&once->to, timeout, 0.);	1663	ev_timer_set (&once->to, timeout, 0.);
1592	ev_timer_start (EV_A_ &once->to);	1664	ev_timer_start (EV_A_ &once->to);
1593	}
1594	}	1665	}
1595	}	1666	}
1596		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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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 1.124 by root, Sat Nov 17 02:26:24 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 1.124 by root, Sat Nov 17 02:26:24 2007 UTC