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

Comparing libev/ev.c (file contents):
Revision 1.70 by root, Tue Nov 6 00:52:32 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
57	#include <math.h>	66	#include <math.h>
58	#include <stdlib.h>	67	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	68	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	69	#include <stddef.h>
63		70
64	#include <stdio.h>	71	#include <stdio.h>
65		72
66	#include <assert.h>	73	#include <assert.h>
67	#include <errno.h>	74	#include <errno.h>
68	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
69	#ifndef WIN32	80	#ifndef _WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
70	# 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
71	#endif	89	# endif
72	#include <sys/time.h>	90	#endif
73	#include <time.h>
74		91
75	/**/	92	/**/
76		93
77	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
79	#endif	96	#endif
80		97
81	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
83	#endif	101	#endif
84		102
85	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
86	# 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
87	#endif	109	#endif
88		110
89	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
91	#endif	113	#endif
92		114
93	#ifndef EV_USE_KQUEUE	115	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	116	# define EV_USE_KQUEUE 0
95	#endif	117	#endif
96		118
97	#ifndef EV_USE_WIN32
98	# ifdef WIN32
99	# define EV_USE_WIN32 1
100	# else
101	# define EV_USE_WIN32 0
102	# endif
103	#endif
104
105	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
106	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
107	#endif	121	#endif
108		122
109	/**/	123	/**/
		124
		125	/* darwin simply cannot be helped */
		126	#ifdef __APPLE__
		127	# undef EV_USE_POLL
		128	# undef EV_USE_KQUEUE
		129	#endif
110		130
111	#ifndef CLOCK_MONOTONIC	131	#ifndef CLOCK_MONOTONIC
112	# undef EV_USE_MONOTONIC	132	# undef EV_USE_MONOTONIC
113	# define EV_USE_MONOTONIC 0	133	# define EV_USE_MONOTONIC 0
114	#endif	134	#endif
115		135
116	#ifndef CLOCK_REALTIME	136	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	137	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	138	# define EV_USE_REALTIME 0
		139	#endif
		140
		141	#if EV_SELECT_IS_WINSOCKET
		142	# include <winsock.h>
119	#endif	143	#endif
120		144
121	/**/	145	/**/
122		146
123	#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) */
124	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	148	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
125	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	149	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
126	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	150	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
127		151
		152	#ifdef EV_H
		153	# include EV_H
		154	#else
128	#include "ev.h"	155	# include "ev.h"
		156	#endif
129		157
130	#if __GNUC__ >= 3	158	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	159	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	160	# define inline inline
133	#else	161	#else
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	167	#define expect_true(expr) expect ((expr) != 0, 1)
140		168
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	169	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	170	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		171
		172	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		173
144	typedef struct ev_watcher *W;	174	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	175	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	176	typedef struct ev_watcher_time *WT;
147		177
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	178	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		179
150	#if WIN32	180	#ifdef _WIN32
151	/* note: the comment below could not be substantiated, but what would I care */	181	# include "ev_win32.c"
152	/* MSDN says this is required to handle SIGFPE */
153	volatile double SIGFPE_REQ = 0.0f;
154	#endif	182	#endif
155		183
156	/*****************************************************************************/	184	/*****************************************************************************/
157		185
158	static void (syserr_cb)(const char msg);	186	static void (syserr_cb)(const char msg);
…		…
206	typedef struct	234	typedef struct
207	{	235	{
208	WL head;	236	WL head;
209	unsigned char events;	237	unsigned char events;
210	unsigned char reify;	238	unsigned char reify;
		239	#if EV_SELECT_IS_WINSOCKET
		240	SOCKET handle;
		241	#endif
211	} ANFD;	242	} ANFD;
212		243
213	typedef struct	244	typedef struct
214	{	245	{
215	W w;	246	W w;
216	int events;	247	int events;
217	} ANPENDING;	248	} ANPENDING;
218		249
219	#if EV_MULTIPLICITY	250	#if EV_MULTIPLICITY
220		251
221	struct ev_loop	252	struct ev_loop
222	{	253	{
		254	ev_tstamp ev_rt_now;
		255	#define ev_rt_now ((loop)->ev_rt_now)
223	# define VAR(name,decl) decl;	256	#define VAR(name,decl) decl;
224	# include "ev_vars.h"	257	#include "ev_vars.h"
225	};
226	# undef VAR	258	#undef VAR
		259	};
227	# include "ev_wrap.h"	260	#include "ev_wrap.h"
		261
		262	struct ev_loop default_loop_struct;
		263	static struct ev_loop *default_loop;
228		264
229	#else	265	#else
230		266
		267	ev_tstamp ev_rt_now;
231	# define VAR(name,decl) static decl;	268	#define VAR(name,decl) static decl;
232	# include "ev_vars.h"	269	#include "ev_vars.h"
233	# undef VAR	270	#undef VAR
		271
		272	static int default_loop;
234		273
235	#endif	274	#endif
236		275
237	/*****************************************************************************/	276	/*****************************************************************************/
238		277
239	inline ev_tstamp	278	ev_tstamp
240	ev_time (void)	279	ev_time (void)
241	{	280	{
242	#if EV_USE_REALTIME	281	#if EV_USE_REALTIME
243	struct timespec ts;	282	struct timespec ts;
244	clock_gettime (CLOCK_REALTIME, &ts);	283	clock_gettime (CLOCK_REALTIME, &ts);
…		…
263	#endif	302	#endif
264		303
265	return ev_time ();	304	return ev_time ();
266	}	305	}
267		306
		307	#if EV_MULTIPLICITY
268	ev_tstamp	308	ev_tstamp
269	ev_now (EV_P)	309	ev_now (EV_P)
270	{	310	{
271	return rt_now;	311	return ev_rt_now;
272	}	312	}
		313	#endif
273		314
274	#define array_roundsize(base,n) ((n) \| 4 & ~3)	315	#define array_roundsize(type,n) (((n) \| 4) & ~3)
275		316
276	#define array_needsize(base,cur,cnt,init) \	317	#define array_needsize(type,base,cur,cnt,init) \
277	if (expect_false ((cnt) > cur)) \	318	if (expect_false ((cnt) > cur)) \
278	{ \	319	{ \
279	int newcnt = cur; \	320	int newcnt = cur; \
280	do \	321	do \
281	{ \	322	{ \
282	newcnt = array_roundsize (base, newcnt << 1); \	323	newcnt = array_roundsize (type, newcnt << 1); \
283	} \	324	} \
284	while ((cnt) > newcnt); \	325	while ((cnt) > newcnt); \
285	\	326	\
286	base = ev_realloc (base, sizeof (base) (newcnt)); \	327	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
287	init (base + cur, newcnt - cur); \	328	init (base + cur, newcnt - cur); \
288	cur = newcnt; \	329	cur = newcnt; \
289	}	330	}
290		331
291	#define array_slim(stem) \	332	#define array_slim(type,stem) \
292	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	333	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
293	{ \	334	{ \
294	stem ## max = array_roundsize (stem ## cnt >> 1); \	335	stem ## max = array_roundsize (stem ## cnt >> 1); \
295	base = ev_realloc (base, sizeof (base) (stem ## max)); \	336	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
296	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	337	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
297	}	338	}
298		339
299	#define array_free(stem, idx) \	340	#define array_free(stem, idx) \
300	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;
…		…
312		353
313	++base;	354	++base;
314	}	355	}
315	}	356	}
316		357
317	static void	358	void
318	event (EV_P_ W w, int events)	359	ev_feed_event (EV_P_ void *w, int revents)
319	{	360	{
		361	W w_ = (W)w;
		362
320	if (w->pending)	363	if (w_->pending)
321	{	364	{
322	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	365	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
323	return;	366	return;
324	}	367	}
325		368
326	w->pending = ++pendingcnt [ABSPRI (w)];	369	w_->pending = ++pendingcnt [ABSPRI (w_)];
327	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	370	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
328	pendings [ABSPRI (w)][w->pending - 1].w = w;	371	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
329	pendings [ABSPRI (w)][w->pending - 1].events = events;	372	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
330	}	373	}
331		374
332	static void	375	static void
333	queue_events (EV_P_ W *events, int eventcnt, int type)	376	queue_events (EV_P_ W *events, int eventcnt, int type)
334	{	377	{
335	int i;	378	int i;
336		379
337	for (i = 0; i < eventcnt; ++i)	380	for (i = 0; i < eventcnt; ++i)
338	event (EV_A_ events [i], type);	381	ev_feed_event (EV_A_ events [i], type);
339	}	382	}
340		383
341	static void	384	inline void
342	fd_event (EV_P_ int fd, int events)	385	fd_event (EV_P_ int fd, int revents)
343	{	386	{
344	ANFD *anfd = anfds + fd;	387	ANFD *anfd = anfds + fd;
345	struct ev_io *w;	388	struct ev_io *w;
346		389
347	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	390	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
348	{	391	{
349	int ev = w->events & events;	392	int ev = w->events & revents;
350		393
351	if (ev)	394	if (ev)
352	event (EV_A_ (W)w, ev);	395	ev_feed_event (EV_A_ (W)w, ev);
353	}	396	}
		397	}
		398
		399	void
		400	ev_feed_fd_event (EV_P_ int fd, int revents)
		401	{
		402	fd_event (EV_A_ fd, revents);
354	}	403	}
355		404
356	/*****************************************************************************/	405	/*****************************************************************************/
357		406
358	static void	407	static void
…		…
369	int events = 0;	418	int events = 0;
370		419
371	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)
372	events \|= w->events;	421	events \|= w->events;
373		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
374	anfd->reify = 0;	432	anfd->reify = 0;
375		433
376	method_modify (EV_A_ fd, anfd->events, events);	434	method_modify (EV_A_ fd, anfd->events, events);
377	anfd->events = events;	435	anfd->events = events;
378	}	436	}
…		…
387	return;	445	return;
388		446
389	anfds [fd].reify = 1;	447	anfds [fd].reify = 1;
390		448
391	++fdchangecnt;	449	++fdchangecnt;
392	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	450	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
393	fdchanges [fdchangecnt - 1] = fd;	451	fdchanges [fdchangecnt - 1] = fd;
394	}	452	}
395		453
396	static void	454	static void
397	fd_kill (EV_P_ int fd)	455	fd_kill (EV_P_ int fd)
…		…
399	struct ev_io *w;	457	struct ev_io *w;
400		458
401	while ((w = (struct ev_io *)anfds [fd].head))	459	while ((w = (struct ev_io *)anfds [fd].head))
402	{	460	{
403	ev_io_stop (EV_A_ w);	461	ev_io_stop (EV_A_ w);
404	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	462	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
405	}	463	}
		464	}
		465
		466	static int
		467	fd_valid (int fd)
		468	{
		469	#ifdef _WIN32
		470	return _get_osfhandle (fd) != -1;
		471	#else
		472	return fcntl (fd, F_GETFD) != -1;
		473	#endif
406	}	474	}
407		475
408	/* called on EBADF to verify fds */	476	/* called on EBADF to verify fds */
409	static void	477	static void
410	fd_ebadf (EV_P)	478	fd_ebadf (EV_P)
411	{	479	{
412	int fd;	480	int fd;
413		481
414	for (fd = 0; fd < anfdmax; ++fd)	482	for (fd = 0; fd < anfdmax; ++fd)
415	if (anfds [fd].events)	483	if (anfds [fd].events)
416	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	484	if (!fd_valid (fd) == -1 && errno == EBADF)
417	fd_kill (EV_A_ fd);	485	fd_kill (EV_A_ fd);
418	}	486	}
419		487
420	/* called on ENOMEM in select/poll to kill some fds and retry */	488	/* called on ENOMEM in select/poll to kill some fds and retry */
421	static void	489	static void
…		…
487		555
488	heap [k] = w;	556	heap [k] = w;
489	((W)heap [k])->active = k + 1;	557	((W)heap [k])->active = k + 1;
490	}	558	}
491		559
		560	inline void
		561	adjustheap (WT *heap, int N, int k)
		562	{
		563	upheap (heap, k);
		564	downheap (heap, N, k);
		565	}
		566
492	/*****************************************************************************/	567	/*****************************************************************************/
493		568
494	typedef struct	569	typedef struct
495	{	570	{
496	WL head;	571	WL head;
…		…
517	}	592	}
518		593
519	static void	594	static void
520	sighandler (int signum)	595	sighandler (int signum)
521	{	596	{
522	#if WIN32	597	#if _WIN32
523	signal (signum, sighandler);	598	signal (signum, sighandler);
524	#endif	599	#endif
525		600
526	signals [signum - 1].gotsig = 1;	601	signals [signum - 1].gotsig = 1;
527		602
…		…
532	write (sigpipe [1], &signum, 1);	607	write (sigpipe [1], &signum, 1);
533	errno = old_errno;	608	errno = old_errno;
534	}	609	}
535	}	610	}
536		611
		612	void
		613	ev_feed_signal_event (EV_P_ int signum)
		614	{
		615	WL w;
		616
		617	#if EV_MULTIPLICITY
		618	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		619	#endif
		620
		621	--signum;
		622
		623	if (signum < 0 \|\| signum >= signalmax)
		624	return;
		625
		626	signals [signum].gotsig = 0;
		627
		628	for (w = signals [signum].head; w; w = w->next)
		629	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		630	}
		631
537	static void	632	static void
538	sigcb (EV_P_ struct ev_io *iow, int revents)	633	sigcb (EV_P_ struct ev_io *iow, int revents)
539	{	634	{
540	WL w;
541	int signum;	635	int signum;
542		636
543	read (sigpipe [0], &revents, 1);	637	read (sigpipe [0], &revents, 1);
544	gotsig = 0;	638	gotsig = 0;
545		639
546	for (signum = signalmax; signum--; )	640	for (signum = signalmax; signum--; )
547	if (signals [signum].gotsig)	641	if (signals [signum].gotsig)
548	{	642	ev_feed_signal_event (EV_A_ signum + 1);
549	signals [signum].gotsig = 0;	643	}
550		644
551	for (w = signals [signum].head; w; w = w->next)	645	inline void
552	event (EV_A_ (W)w, EV_SIGNAL);	646	fd_intern (int fd)
553	}	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
554	}	655	}
555		656
556	static void	657	static void
557	siginit (EV_P)	658	siginit (EV_P)
558	{	659	{
559	#ifndef WIN32	660	fd_intern (sigpipe [0]);
560	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	661	fd_intern (sigpipe [1]);
561	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
562
563	/* rather than sort out wether we really need nb, set it */
564	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
565	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
566	#endif
567		662
568	ev_io_set (&sigev, sigpipe [0], EV_READ);	663	ev_io_set (&sigev, sigpipe [0], EV_READ);
569	ev_io_start (EV_A_ &sigev);	664	ev_io_start (EV_A_ &sigev);
570	ev_unref (EV_A); /* child watcher should not keep loop alive */	665	ev_unref (EV_A); /* child watcher should not keep loop alive */
571	}	666	}
572		667
573	/*****************************************************************************/	668	/*****************************************************************************/
574		669
575	#ifndef WIN32
576
577	static struct ev_child *childs [PID_HASHSIZE];	670	static struct ev_child *childs [PID_HASHSIZE];
		671
		672	#ifndef _WIN32
		673
578	static struct ev_signal childev;	674	static struct ev_signal childev;
579		675
580	#ifndef WCONTINUED	676	#ifndef WCONTINUED
581	# define WCONTINUED 0	677	# define WCONTINUED 0
582	#endif	678	#endif
…		…
590	if (w->pid == pid \|\| !w->pid)	686	if (w->pid == pid \|\| !w->pid)
591	{	687	{
592	ev_priority (w) = ev_priority (sw); /* need to do it now */	688	ev_priority (w) = ev_priority (sw); /* need to do it now */
593	w->rpid = pid;	689	w->rpid = pid;
594	w->rstatus = status;	690	w->rstatus = status;
595	event (EV_A_ (W)w, EV_CHILD);	691	ev_feed_event (EV_A_ (W)w, EV_CHILD);
596	}	692	}
597	}	693	}
598		694
599	static void	695	static void
600	childcb (EV_P_ struct ev_signal *sw, int revents)	696	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
602	int pid, status;	698	int pid, status;
603		699
604	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	700	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
605	{	701	{
606	/* make sure we are called again until all childs have been reaped */	702	/* make sure we are called again until all childs have been reaped */
607	event (EV_A_ (W)sw, EV_SIGNAL);	703	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
608		704
609	child_reap (EV_A_ sw, pid, pid, status);	705	child_reap (EV_A_ sw, pid, pid, status);
610	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	706	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
611	}	707	}
612	}	708	}
…		…
642		738
643	/* 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 */
644	static int	740	static int
645	enable_secure (void)	741	enable_secure (void)
646	{	742	{
647	#ifdef WIN32	743	#ifdef _WIN32
648	return 0;	744	return 0;
649	#else	745	#else
650	return getuid () != geteuid ()	746	return getuid () != geteuid ()
651	\|\| getgid () != getegid ();	747	\|\| getgid () != getegid ();
652	#endif	748	#endif
…		…
657	{	753	{
658	return method;	754	return method;
659	}	755	}
660		756
661	static void	757	static void
662	loop_init (EV_P_ int methods)	758	loop_init (EV_P_ unsigned int flags)
663	{	759	{
664	if (!method)	760	if (!method)
665	{	761	{
666	#if EV_USE_MONOTONIC	762	#if EV_USE_MONOTONIC
667	{	763	{
…		…
669	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	765	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
670	have_monotonic = 1;	766	have_monotonic = 1;
671	}	767	}
672	#endif	768	#endif
673		769
674	rt_now = ev_time ();	770	ev_rt_now = ev_time ();
675	mn_now = get_clock ();	771	mn_now = get_clock ();
676	now_floor = mn_now;	772	now_floor = mn_now;
677	rtmn_diff = rt_now - mn_now;	773	rtmn_diff = ev_rt_now - mn_now;
678		774
679	if (methods == EVMETHOD_AUTO)	775	if (!(flags & EVMETHOD_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
680	if (!enable_secure () && getenv ("LIBEV_METHODS"))
681	methods = atoi (getenv ("LIBEV_METHODS"));	776	flags = atoi (getenv ("LIBEV_FLAGS"));
682	else	777
683	methods = EVMETHOD_ANY;	778	if (!(flags & 0x0000ffff))
		779	flags \|= 0x0000ffff;
684		780
685	method = 0;	781	method = 0;
686	#if EV_USE_WIN32
687	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
688	#endif
689	#if EV_USE_KQUEUE	782	#if EV_USE_KQUEUE
690	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	783	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
691	#endif	784	#endif
692	#if EV_USE_EPOLL	785	#if EV_USE_EPOLL
693	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	786	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
694	#endif	787	#endif
695	#if EV_USE_POLL	788	#if EV_USE_POLL
696	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	789	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
697	#endif	790	#endif
698	#if EV_USE_SELECT	791	#if EV_USE_SELECT
699	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	792	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
700	#endif	793	#endif
701		794
702	ev_watcher_init (&sigev, sigcb);	795	ev_init (&sigev, sigcb);
703	ev_set_priority (&sigev, EV_MAXPRI);	796	ev_set_priority (&sigev, EV_MAXPRI);
704	}	797	}
705	}	798	}
706		799
707	void	800	void
708	loop_destroy (EV_P)	801	loop_destroy (EV_P)
709	{	802	{
710	int i;	803	int i;
711		804
712	#if EV_USE_WIN32
713	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
714	#endif
715	#if EV_USE_KQUEUE	805	#if EV_USE_KQUEUE
716	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	806	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
717	#endif	807	#endif
718	#if EV_USE_EPOLL	808	#if EV_USE_EPOLL
719	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	809	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
726	#endif	816	#endif
727		817
728	for (i = NUMPRI; i--; )	818	for (i = NUMPRI; i--; )
729	array_free (pending, [i]);	819	array_free (pending, [i]);
730		820
		821	/* have to use the microsoft-never-gets-it-right macro */
731	array_free (fdchange, );	822	array_free (fdchange, EMPTY);
732	array_free (timer, );	823	array_free (timer, EMPTY);
		824	#if EV_PERIODICS
733	array_free (periodic, );	825	array_free (periodic, EMPTY);
		826	#endif
734	array_free (idle, );	827	array_free (idle, EMPTY);
735	array_free (prepare, );	828	array_free (prepare, EMPTY);
736	array_free (check, );	829	array_free (check, EMPTY);
737		830
738	method = 0;	831	method = 0;
739	}	832	}
740		833
741	static void	834	static void
…		…
766	postfork = 0;	859	postfork = 0;
767	}	860	}
768		861
769	#if EV_MULTIPLICITY	862	#if EV_MULTIPLICITY
770	struct ev_loop *	863	struct ev_loop *
771	ev_loop_new (int methods)	864	ev_loop_new (unsigned int flags)
772	{	865	{
773	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));
774		867
775	memset (loop, 0, sizeof (struct ev_loop));	868	memset (loop, 0, sizeof (struct ev_loop));
776		869
777	loop_init (EV_A_ methods);	870	loop_init (EV_A_ flags);
778		871
779	if (ev_method (EV_A))	872	if (ev_method (EV_A))
780	return loop;	873	return loop;
781		874
782	return 0;	875	return 0;
…		…
796	}	889	}
797		890
798	#endif	891	#endif
799		892
800	#if EV_MULTIPLICITY	893	#if EV_MULTIPLICITY
801	struct ev_loop default_loop_struct;
802	static struct ev_loop *default_loop;
803
804	struct ev_loop *	894	struct ev_loop *
805	#else	895	#else
806	static int default_loop;
807
808	int	896	int
809	#endif	897	#endif
810	ev_default_loop (int methods)	898	ev_default_loop (unsigned int flags)
811	{	899	{
812	if (sigpipe [0] == sigpipe [1])	900	if (sigpipe [0] == sigpipe [1])
813	if (pipe (sigpipe))	901	if (pipe (sigpipe))
814	return 0;	902	return 0;
815		903
…		…
819	struct ev_loop *loop = default_loop = &default_loop_struct;	907	struct ev_loop *loop = default_loop = &default_loop_struct;
820	#else	908	#else
821	default_loop = 1;	909	default_loop = 1;
822	#endif	910	#endif
823		911
824	loop_init (EV_A_ methods);	912	loop_init (EV_A_ flags);
825		913
826	if (ev_method (EV_A))	914	if (ev_method (EV_A))
827	{	915	{
828	siginit (EV_A);	916	siginit (EV_A);
829		917
830	#ifndef WIN32	918	#ifndef _WIN32
831	ev_signal_init (&childev, childcb, SIGCHLD);	919	ev_signal_init (&childev, childcb, SIGCHLD);
832	ev_set_priority (&childev, EV_MAXPRI);	920	ev_set_priority (&childev, EV_MAXPRI);
833	ev_signal_start (EV_A_ &childev);	921	ev_signal_start (EV_A_ &childev);
834	ev_unref (EV_A); /* child watcher should not keep loop alive */	922	ev_unref (EV_A); /* child watcher should not keep loop alive */
835	#endif	923	#endif
…		…
846	{	934	{
847	#if EV_MULTIPLICITY	935	#if EV_MULTIPLICITY
848	struct ev_loop *loop = default_loop;	936	struct ev_loop *loop = default_loop;
849	#endif	937	#endif
850		938
		939	#ifndef _WIN32
851	ev_ref (EV_A); /* child watcher */	940	ev_ref (EV_A); /* child watcher */
852	ev_signal_stop (EV_A_ &childev);	941	ev_signal_stop (EV_A_ &childev);
		942	#endif
853		943
854	ev_ref (EV_A); /* signal watcher */	944	ev_ref (EV_A); /* signal watcher */
855	ev_io_stop (EV_A_ &sigev);	945	ev_io_stop (EV_A_ &sigev);
856		946
857	close (sigpipe [0]); sigpipe [0] = 0;	947	close (sigpipe [0]); sigpipe [0] = 0;
…		…
870	if (method)	960	if (method)
871	postfork = 1;	961	postfork = 1;
872	}	962	}
873		963
874	/*****************************************************************************/	964	/*****************************************************************************/
		965
		966	static int
		967	any_pending (EV_P)
		968	{
		969	int pri;
		970
		971	for (pri = NUMPRI; pri--; )
		972	if (pendingcnt [pri])
		973	return 1;
		974
		975	return 0;
		976	}
875		977
876	static void	978	static void
877	call_pending (EV_P)	979	call_pending (EV_P)
878	{	980	{
879	int pri;	981	int pri;
…		…
884	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	986	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
885		987
886	if (p->w)	988	if (p->w)
887	{	989	{
888	p->w->pending = 0;	990	p->w->pending = 0;
889	p->w->cb (EV_A_ p->w, p->events);	991	EV_CB_INVOKE (p->w, p->events);
890	}	992	}
891	}	993	}
892	}	994	}
893		995
894	static void	996	static void
…		…
902		1004
903	/* first reschedule or stop timer */	1005	/* first reschedule or stop timer */
904	if (w->repeat)	1006	if (w->repeat)
905	{	1007	{
906	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
907	((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
908	downheap ((WT *)timers, timercnt, 0);	1014	downheap ((WT *)timers, timercnt, 0);
909	}	1015	}
910	else	1016	else
911	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1017	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
912		1018
913	event (EV_A_ (W)w, EV_TIMEOUT);	1019	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
914	}	1020	}
915	}	1021	}
916		1022
		1023	#if EV_PERIODICS
917	static void	1024	static void
918	periodics_reify (EV_P)	1025	periodics_reify (EV_P)
919	{	1026	{
920	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1027	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
921	{	1028	{
922	struct ev_periodic *w = periodics [0];	1029	struct ev_periodic *w = periodics [0];
923		1030
924	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1031	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
925		1032
926	/* first reschedule or stop timer */	1033	/* first reschedule or stop timer */
927	if (w->interval)	1034	if (w->reschedule_cb)
928	{	1035	{
		1036	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1037	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1038	downheap ((WT *)periodics, periodiccnt, 0);
		1039	}
		1040	else if (w->interval)
		1041	{
929	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1042	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
930	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1043	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
931	downheap ((WT *)periodics, periodiccnt, 0);	1044	downheap ((WT *)periodics, periodiccnt, 0);
932	}	1045	}
933	else	1046	else
934	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1047	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
935		1048
936	event (EV_A_ (W)w, EV_PERIODIC);	1049	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
937	}	1050	}
938	}	1051	}
939		1052
940	static void	1053	static void
941	periodics_reschedule (EV_P)	1054	periodics_reschedule (EV_P)
…		…
945	/* adjust periodics after time jump */	1058	/* adjust periodics after time jump */
946	for (i = 0; i < periodiccnt; ++i)	1059	for (i = 0; i < periodiccnt; ++i)
947	{	1060	{
948	struct ev_periodic *w = periodics [i];	1061	struct ev_periodic *w = periodics [i];
949		1062
		1063	if (w->reschedule_cb)
		1064	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
950	if (w->interval)	1065	else if (w->interval)
951	{
952	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1066	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
953
954	if (fabs (diff) >= 1e-4)
955	{
956	ev_periodic_stop (EV_A_ w);
957	ev_periodic_start (EV_A_ w);
958
959	i = 0; /* restart loop, inefficient, but time jumps should be rare */
960	}
961	}
962	}	1067	}
		1068
		1069	/* now rebuild the heap */
		1070	for (i = periodiccnt >> 1; i--; )
		1071	downheap ((WT *)periodics, periodiccnt, i);
963	}	1072	}
		1073	#endif
964		1074
965	inline int	1075	inline int
966	time_update_monotonic (EV_P)	1076	time_update_monotonic (EV_P)
967	{	1077	{
968	mn_now = get_clock ();	1078	mn_now = get_clock ();
969		1079
970	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1080	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
971	{	1081	{
972	rt_now = rtmn_diff + mn_now;	1082	ev_rt_now = rtmn_diff + mn_now;
973	return 0;	1083	return 0;
974	}	1084	}
975	else	1085	else
976	{	1086	{
977	now_floor = mn_now;	1087	now_floor = mn_now;
978	rt_now = ev_time ();	1088	ev_rt_now = ev_time ();
979	return 1;	1089	return 1;
980	}	1090	}
981	}	1091	}
982		1092
983	static void	1093	static void
…		…
992	{	1102	{
993	ev_tstamp odiff = rtmn_diff;	1103	ev_tstamp odiff = rtmn_diff;
994		1104
995	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1105	for (i = 4; --i; ) /* loop a few times, before making important decisions */
996	{	1106	{
997	rtmn_diff = rt_now - mn_now;	1107	rtmn_diff = ev_rt_now - mn_now;
998		1108
999	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1109	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1000	return; /* all is well */	1110	return; /* all is well */
1001		1111
1002	rt_now = ev_time ();	1112	ev_rt_now = ev_time ();
1003	mn_now = get_clock ();	1113	mn_now = get_clock ();
1004	now_floor = mn_now;	1114	now_floor = mn_now;
1005	}	1115	}
1006		1116
		1117	# if EV_PERIODICS
1007	periodics_reschedule (EV_A);	1118	periodics_reschedule (EV_A);
		1119	# endif
1008	/* no timer adjustment, as the monotonic clock doesn't jump */	1120	/* no timer adjustment, as the monotonic clock doesn't jump */
1009	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1121	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1010	}	1122	}
1011	}	1123	}
1012	else	1124	else
1013	#endif	1125	#endif
1014	{	1126	{
1015	rt_now = ev_time ();	1127	ev_rt_now = ev_time ();
1016		1128
1017	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1129	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1018	{	1130	{
		1131	#if EV_PERIODICS
1019	periodics_reschedule (EV_A);	1132	periodics_reschedule (EV_A);
		1133	#endif
1020		1134
1021	/* 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 */
1022	for (i = 0; i < timercnt; ++i)	1136	for (i = 0; i < timercnt; ++i)
1023	((WT)timers [i])->at += rt_now - mn_now;	1137	((WT)timers [i])->at += ev_rt_now - mn_now;
1024	}	1138	}
1025		1139
1026	mn_now = rt_now;	1140	mn_now = ev_rt_now;
1027	}	1141	}
1028	}	1142	}
1029		1143
1030	void	1144	void
1031	ev_ref (EV_P)	1145	ev_ref (EV_P)
…		…
1063	/* update fd-related kernel structures */	1177	/* update fd-related kernel structures */
1064	fd_reify (EV_A);	1178	fd_reify (EV_A);
1065		1179
1066	/* calculate blocking time */	1180	/* calculate blocking time */
1067		1181
1068	/* we only need this for !monotonic clockor timers, but as we basically	1182	/* we only need this for !monotonic clock or timers, but as we basically
1069	always have timers, we just calculate it always */	1183	always have timers, we just calculate it always */
1070	#if EV_USE_MONOTONIC	1184	#if EV_USE_MONOTONIC
1071	if (expect_true (have_monotonic))	1185	if (expect_true (have_monotonic))
1072	time_update_monotonic (EV_A);	1186	time_update_monotonic (EV_A);
1073	else	1187	else
1074	#endif	1188	#endif
1075	{	1189	{
1076	rt_now = ev_time ();	1190	ev_rt_now = ev_time ();
1077	mn_now = rt_now;	1191	mn_now = ev_rt_now;
1078	}	1192	}
1079		1193
1080	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1194	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1081	block = 0.;	1195	block = 0.;
1082	else	1196	else
…		…
1087	{	1201	{
1088	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1202	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1089	if (block > to) block = to;	1203	if (block > to) block = to;
1090	}	1204	}
1091		1205
		1206	#if EV_PERIODICS
1092	if (periodiccnt)	1207	if (periodiccnt)
1093	{	1208	{
1094	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1209	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1095	if (block > to) block = to;	1210	if (block > to) block = to;
1096	}	1211	}
		1212	#endif
1097		1213
1098	if (block < 0.) block = 0.;	1214	if (block < 0.) block = 0.;
1099	}	1215	}
1100		1216
1101	method_poll (EV_A_ block);	1217	method_poll (EV_A_ block);
1102		1218
1103	/* update rt_now, do magic */	1219	/* update ev_rt_now, do magic */
1104	time_update (EV_A);	1220	time_update (EV_A);
1105		1221
1106	/* queue pending timers and reschedule them */	1222	/* queue pending timers and reschedule them */
1107	timers_reify (EV_A); /* relative timers called last */	1223	timers_reify (EV_A); /* relative timers called last */
		1224	#if EV_PERIODICS
1108	periodics_reify (EV_A); /* absolute timers called first */	1225	periodics_reify (EV_A); /* absolute timers called first */
		1226	#endif
1109		1227
1110	/* queue idle watchers unless io or timers are pending */	1228	/* queue idle watchers unless io or timers are pending */
1111	if (!pendingcnt)	1229	if (idlecnt && !any_pending (EV_A))
1112	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1230	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1113		1231
1114	/* queue check watchers, to be executed first */	1232	/* queue check watchers, to be executed first */
1115	if (checkcnt)	1233	if (checkcnt)
1116	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1234	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1191	return;	1309	return;
1192		1310
1193	assert (("ev_io_start called with negative fd", fd >= 0));	1311	assert (("ev_io_start called with negative fd", fd >= 0));
1194		1312
1195	ev_start (EV_A_ (W)w, 1);	1313	ev_start (EV_A_ (W)w, 1);
1196	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1314	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1197	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1315	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1198		1316
1199	fd_change (EV_A_ fd);	1317	fd_change (EV_A_ fd);
1200	}	1318	}
1201		1319
…		…
1204	{	1322	{
1205	ev_clear_pending (EV_A_ (W)w);	1323	ev_clear_pending (EV_A_ (W)w);
1206	if (!ev_is_active (w))	1324	if (!ev_is_active (w))
1207	return;	1325	return;
1208		1326
		1327	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1328
1209	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1329	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1210	ev_stop (EV_A_ (W)w);	1330	ev_stop (EV_A_ (W)w);
1211		1331
1212	fd_change (EV_A_ w->fd);	1332	fd_change (EV_A_ w->fd);
1213	}	1333	}
…		…
1221	((WT)w)->at += mn_now;	1341	((WT)w)->at += mn_now;
1222		1342
1223	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1343	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1224		1344
1225	ev_start (EV_A_ (W)w, ++timercnt);	1345	ev_start (EV_A_ (W)w, ++timercnt);
1226	array_needsize (timers, timermax, timercnt, );	1346	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1227	timers [timercnt - 1] = w;	1347	timers [timercnt - 1] = w;
1228	upheap ((WT *)timers, timercnt - 1);	1348	upheap ((WT *)timers, timercnt - 1);
1229		1349
1230	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1231	}	1351	}
…		…
1240	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1360	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1241		1361
1242	if (((W)w)->active < timercnt--)	1362	if (((W)w)->active < timercnt--)
1243	{	1363	{
1244	timers [((W)w)->active - 1] = timers [timercnt];	1364	timers [((W)w)->active - 1] = timers [timercnt];
1245	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1365	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1246	}	1366	}
1247		1367
1248	((WT)w)->at = w->repeat;	1368	((WT)w)->at -= mn_now;
1249		1369
1250	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1251	}	1371	}
1252		1372
1253	void	1373	void
…		…
1256	if (ev_is_active (w))	1376	if (ev_is_active (w))
1257	{	1377	{
1258	if (w->repeat)	1378	if (w->repeat)
1259	{	1379	{
1260	((WT)w)->at = mn_now + w->repeat;	1380	((WT)w)->at = mn_now + w->repeat;
1261	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1381	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1262	}	1382	}
1263	else	1383	else
1264	ev_timer_stop (EV_A_ w);	1384	ev_timer_stop (EV_A_ w);
1265	}	1385	}
1266	else if (w->repeat)	1386	else if (w->repeat)
1267	ev_timer_start (EV_A_ w);	1387	ev_timer_start (EV_A_ w);
1268	}	1388	}
1269		1389
		1390	#if EV_PERIODICS
1270	void	1391	void
1271	ev_periodic_start (EV_P_ struct ev_periodic *w)	1392	ev_periodic_start (EV_P_ struct ev_periodic *w)
1272	{	1393	{
1273	if (ev_is_active (w))	1394	if (ev_is_active (w))
1274	return;	1395	return;
1275		1396
		1397	if (w->reschedule_cb)
		1398	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1399	else if (w->interval)
		1400	{
1276	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1401	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1277
1278	/* this formula differs from the one in periodic_reify because we do not always round up */	1402	/* this formula differs from the one in periodic_reify because we do not always round up */
1279	if (w->interval)
1280	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1403	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1404	}
1281		1405
1282	ev_start (EV_A_ (W)w, ++periodiccnt);	1406	ev_start (EV_A_ (W)w, ++periodiccnt);
1283	array_needsize (periodics, periodicmax, periodiccnt, );	1407	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1284	periodics [periodiccnt - 1] = w;	1408	periodics [periodiccnt - 1] = w;
1285	upheap ((WT *)periodics, periodiccnt - 1);	1409	upheap ((WT *)periodics, periodiccnt - 1);
1286		1410
1287	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1411	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1288	}	1412	}
…		…
1297	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1421	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1298		1422
1299	if (((W)w)->active < periodiccnt--)	1423	if (((W)w)->active < periodiccnt--)
1300	{	1424	{
1301	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1425	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1302	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1426	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1303	}	1427	}
1304		1428
1305	ev_stop (EV_A_ (W)w);	1429	ev_stop (EV_A_ (W)w);
1306	}	1430	}
1307		1431
1308	void	1432	void
		1433	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1434	{
		1435	/* TODO: use adjustheap and recalculation */
		1436	ev_periodic_stop (EV_A_ w);
		1437	ev_periodic_start (EV_A_ w);
		1438	}
		1439	#endif
		1440
		1441	void
1309	ev_idle_start (EV_P_ struct ev_idle *w)	1442	ev_idle_start (EV_P_ struct ev_idle *w)
1310	{	1443	{
1311	if (ev_is_active (w))	1444	if (ev_is_active (w))
1312	return;	1445	return;
1313		1446
1314	ev_start (EV_A_ (W)w, ++idlecnt);	1447	ev_start (EV_A_ (W)w, ++idlecnt);
1315	array_needsize (idles, idlemax, idlecnt, );	1448	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1316	idles [idlecnt - 1] = w;	1449	idles [idlecnt - 1] = w;
1317	}	1450	}
1318		1451
1319	void	1452	void
1320	ev_idle_stop (EV_P_ struct ev_idle *w)	1453	ev_idle_stop (EV_P_ struct ev_idle *w)
1321	{	1454	{
1322	ev_clear_pending (EV_A_ (W)w);	1455	ev_clear_pending (EV_A_ (W)w);
1323	if (ev_is_active (w))	1456	if (!ev_is_active (w))
1324	return;	1457	return;
1325		1458
1326	idles [((W)w)->active - 1] = idles [--idlecnt];	1459	idles [((W)w)->active - 1] = idles [--idlecnt];
1327	ev_stop (EV_A_ (W)w);	1460	ev_stop (EV_A_ (W)w);
1328	}	1461	}
…		…
1332	{	1465	{
1333	if (ev_is_active (w))	1466	if (ev_is_active (w))
1334	return;	1467	return;
1335		1468
1336	ev_start (EV_A_ (W)w, ++preparecnt);	1469	ev_start (EV_A_ (W)w, ++preparecnt);
1337	array_needsize (prepares, preparemax, preparecnt, );	1470	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1338	prepares [preparecnt - 1] = w;	1471	prepares [preparecnt - 1] = w;
1339	}	1472	}
1340		1473
1341	void	1474	void
1342	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1475	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1343	{	1476	{
1344	ev_clear_pending (EV_A_ (W)w);	1477	ev_clear_pending (EV_A_ (W)w);
1345	if (ev_is_active (w))	1478	if (!ev_is_active (w))
1346	return;	1479	return;
1347		1480
1348	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1481	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1349	ev_stop (EV_A_ (W)w);	1482	ev_stop (EV_A_ (W)w);
1350	}	1483	}
…		…
1354	{	1487	{
1355	if (ev_is_active (w))	1488	if (ev_is_active (w))
1356	return;	1489	return;
1357		1490
1358	ev_start (EV_A_ (W)w, ++checkcnt);	1491	ev_start (EV_A_ (W)w, ++checkcnt);
1359	array_needsize (checks, checkmax, checkcnt, );	1492	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1360	checks [checkcnt - 1] = w;	1493	checks [checkcnt - 1] = w;
1361	}	1494	}
1362		1495
1363	void	1496	void
1364	ev_check_stop (EV_P_ struct ev_check *w)	1497	ev_check_stop (EV_P_ struct ev_check *w)
1365	{	1498	{
1366	ev_clear_pending (EV_A_ (W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1367	if (ev_is_active (w))	1500	if (!ev_is_active (w))
1368	return;	1501	return;
1369		1502
1370	checks [((W)w)->active - 1] = checks [--checkcnt];	1503	checks [((W)w)->active - 1] = checks [--checkcnt];
1371	ev_stop (EV_A_ (W)w);	1504	ev_stop (EV_A_ (W)w);
1372	}	1505	}
…		…
1385	return;	1518	return;
1386		1519
1387	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1520	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1388		1521
1389	ev_start (EV_A_ (W)w, 1);	1522	ev_start (EV_A_ (W)w, 1);
1390	array_needsize (signals, signalmax, w->signum, signals_init);	1523	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1391	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1524	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1392		1525
1393	if (!((WL)w)->next)	1526	if (!((WL)w)->next)
1394	{	1527	{
1395	#if WIN32	1528	#if _WIN32
1396	signal (w->signum, sighandler);	1529	signal (w->signum, sighandler);
1397	#else	1530	#else
1398	struct sigaction sa;	1531	struct sigaction sa;
1399	sa.sa_handler = sighandler;	1532	sa.sa_handler = sighandler;
1400	sigfillset (&sa.sa_mask);	1533	sigfillset (&sa.sa_mask);
…		…
1433		1566
1434	void	1567	void
1435	ev_child_stop (EV_P_ struct ev_child *w)	1568	ev_child_stop (EV_P_ struct ev_child *w)
1436	{	1569	{
1437	ev_clear_pending (EV_A_ (W)w);	1570	ev_clear_pending (EV_A_ (W)w);
1438	if (ev_is_active (w))	1571	if (!ev_is_active (w))
1439	return;	1572	return;
1440		1573
1441	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1574	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1442	ev_stop (EV_A_ (W)w);	1575	ev_stop (EV_A_ (W)w);
1443	}	1576	}
…		…
1478	}	1611	}
1479		1612
1480	void	1613	void
1481	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1614	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1482	{	1615	{
1483	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1616	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1484		1617
1485	if (!once)	1618	if (!once)
1486	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1619	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1487	else	1620	else
1488	{	1621	{
1489	once->cb = cb;	1622	once->cb = cb;
1490	once->arg = arg;	1623	once->arg = arg;
1491		1624
1492	ev_watcher_init (&once->io, once_cb_io);	1625	ev_init (&once->io, once_cb_io);
1493	if (fd >= 0)	1626	if (fd >= 0)
1494	{	1627	{
1495	ev_io_set (&once->io, fd, events);	1628	ev_io_set (&once->io, fd, events);
1496	ev_io_start (EV_A_ &once->io);	1629	ev_io_start (EV_A_ &once->io);
1497	}	1630	}
1498		1631
1499	ev_watcher_init (&once->to, once_cb_to);	1632	ev_init (&once->to, once_cb_to);
1500	if (timeout >= 0.)	1633	if (timeout >= 0.)
1501	{	1634	{
1502	ev_timer_set (&once->to, timeout, 0.);	1635	ev_timer_set (&once->to, timeout, 0.);
1503	ev_timer_start (EV_A_ &once->to);	1636	ev_timer_start (EV_A_ &once->to);
1504	}	1637	}
1505	}	1638	}
1506	}	1639	}
1507		1640
		1641	#ifdef __cplusplus
		1642	}
		1643	#endif
		1644

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Comparing libev/ev.c (file contents): Revision 1.70 by root, Tue Nov 6 00:52:32 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 1.70 by root, Tue Nov 6 00:52:32 2007 UTC vs.
Revision 1.110 by root, Mon Nov 12 05:56:49 2007 UTC