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

Comparing libev/ev.c (file contents):
Revision 1.64 by root, Sun Nov 4 23:14:11 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 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 && 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>
71	#endif	84	#endif
72	#include <sys/time.h>
73	#include <time.h>
74
75	/**/	85	/**/
76		86
77	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
79	#endif	89	#endif
…		…
94	# define EV_USE_KQUEUE 0	104	# define EV_USE_KQUEUE 0
95	#endif	105	#endif
96		106
97	#ifndef EV_USE_WIN32	107	#ifndef EV_USE_WIN32
98	# ifdef WIN32	108	# ifdef WIN32
		109	# define EV_USE_WIN32 0 /* it does not exist, use select */
		110	# undef EV_USE_SELECT
99	# define EV_USE_WIN32 1	111	# define EV_USE_SELECT 1
100	# else	112	# else
101	# define EV_USE_WIN32 0	113	# define EV_USE_WIN32 0
102	# endif	114	# endif
103	#endif	115	#endif
104		116
…		…
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	135	#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) */	136	#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 */	137	#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 */	138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
127		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
128	#include "ev.h"	143	# include "ev.h"
		144	#endif
129		145
130	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	148	# define inline inline
133	#else	149	#else
…		…
145	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
147		163
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		165
		166	#ifdef WIN32
		167	# include "ev_win32.c"
		168	#endif
		169
150	/*****************************************************************************/	170	/*****************************************************************************/
151		171
		172	static void (syserr_cb)(const char msg);
		173
		174	void ev_set_syserr_cb (void (cb)(const char msg))
		175	{
		176	syserr_cb = cb;
		177	}
		178
		179	static void
		180	syserr (const char *msg)
		181	{
		182	if (!msg)
		183	msg = "(libev) system error";
		184
		185	if (syserr_cb)
		186	syserr_cb (msg);
		187	else
		188	{
		189	perror (msg);
		190	abort ();
		191	}
		192	}
		193
		194	static void (alloc)(void *ptr, long size);
		195
		196	void ev_set_allocator (void (cb)(void *ptr, long size))
		197	{
		198	alloc = cb;
		199	}
		200
		201	static void *
		202	ev_realloc (void *ptr, long size)
		203	{
		204	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		205
		206	if (!ptr && size)
		207	{
		208	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		209	abort ();
		210	}
		211
		212	return ptr;
		213	}
		214
		215	#define ev_malloc(size) ev_realloc (0, (size))
		216	#define ev_free(ptr) ev_realloc ((ptr), 0)
		217
		218	/*****************************************************************************/
		219
152	typedef struct	220	typedef struct
153	{	221	{
154	struct ev_watcher_list *head;	222	WL head;
155	unsigned char events;	223	unsigned char events;
156	unsigned char reify;	224	unsigned char reify;
157	} ANFD;	225	} ANFD;
158		226
159	typedef struct	227	typedef struct
…		…
162	int events;	230	int events;
163	} ANPENDING;	231	} ANPENDING;
164		232
165	#if EV_MULTIPLICITY	233	#if EV_MULTIPLICITY
166		234
167	struct ev_loop	235	struct ev_loop
168	{	236	{
		237	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) decl;	238	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	239	#include "ev_vars.h"
171	};
172	# undef VAR	240	#undef VAR
		241	};
173	# include "ev_wrap.h"	242	#include "ev_wrap.h"
		243
		244	struct ev_loop default_loop_struct;
		245	static struct ev_loop *default_loop;
174		246
175	#else	247	#else
176		248
		249	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	250	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	251	#include "ev_vars.h"
179	# undef VAR	252	#undef VAR
		253
		254	static int default_loop;
180		255
181	#endif	256	#endif
182		257
183	/*****************************************************************************/	258	/*****************************************************************************/
184		259
185	inline ev_tstamp	260	ev_tstamp
186	ev_time (void)	261	ev_time (void)
187	{	262	{
188	#if EV_USE_REALTIME	263	#if EV_USE_REALTIME
189	struct timespec ts;	264	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	265	clock_gettime (CLOCK_REALTIME, &ts);
…		…
209	#endif	284	#endif
210		285
211	return ev_time ();	286	return ev_time ();
212	}	287	}
213		288
		289	#if EV_MULTIPLICITY
214	ev_tstamp	290	ev_tstamp
215	ev_now (EV_P)	291	ev_now (EV_P)
216	{	292	{
217	return rt_now;	293	return ev_rt_now;
218	}	294	}
		295	#endif
219		296
220	#define array_roundsize(base,n) ((n) \| 4 & ~3)	297	#define array_roundsize(type,n) ((n) \| 4 & ~3)
221		298
222	#define array_needsize(base,cur,cnt,init) \	299	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	300	if (expect_false ((cnt) > cur)) \
224	{ \	301	{ \
225	int newcnt = cur; \	302	int newcnt = cur; \
226	do \	303	do \
227	{ \	304	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	305	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	306	} \
230	while ((cnt) > newcnt); \	307	while ((cnt) > newcnt); \
231	\	308	\
232	base = realloc (base, sizeof (base) (newcnt)); \	309	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
233	init (base + cur, newcnt - cur); \	310	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	311	cur = newcnt; \
235	}	312	}
		313
		314	#define array_slim(type,stem) \
		315	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		316	{ \
		317	stem ## max = array_roundsize (stem ## cnt >> 1); \
		318	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		319	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		320	}
		321
		322	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		323	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		324	#define array_free_microshit(stem) \
		325	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		326
		327	#define array_free(stem, idx) \
		328	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
236		329
237	/*****************************************************************************/	330	/*****************************************************************************/
238		331
239	static void	332	static void
240	anfds_init (ANFD *base, int count)	333	anfds_init (ANFD *base, int count)
…		…
247		340
248	++base;	341	++base;
249	}	342	}
250	}	343	}
251		344
252	static void	345	void
253	event (EV_P_ W w, int events)	346	ev_feed_event (EV_P_ void *w, int revents)
254	{	347	{
		348	W w_ = (W)w;
		349
255	if (w->pending)	350	if (w_->pending)
256	{	351	{
257	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
258	return;	353	return;
259	}	354	}
260		355
261	w->pending = ++pendingcnt [ABSPRI (w)];	356	w_->pending = ++pendingcnt [ABSPRI (w_)];
262	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	357	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
263	pendings [ABSPRI (w)][w->pending - 1].w = w;	358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
264	pendings [ABSPRI (w)][w->pending - 1].events = events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
265	}	360	}
266		361
267	static void	362	static void
268	queue_events (EV_P_ W *events, int eventcnt, int type)	363	queue_events (EV_P_ W *events, int eventcnt, int type)
269	{	364	{
270	int i;	365	int i;
271		366
272	for (i = 0; i < eventcnt; ++i)	367	for (i = 0; i < eventcnt; ++i)
273	event (EV_A_ events [i], type);	368	ev_feed_event (EV_A_ events [i], type);
274	}	369	}
275		370
276	static void	371	inline void
277	fd_event (EV_P_ int fd, int events)	372	fd_event (EV_P_ int fd, int revents)
278	{	373	{
279	ANFD *anfd = anfds + fd;	374	ANFD *anfd = anfds + fd;
280	struct ev_io *w;	375	struct ev_io *w;
281		376
282	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
283	{	378	{
284	int ev = w->events & events;	379	int ev = w->events & revents;
285		380
286	if (ev)	381	if (ev)
287	event (EV_A_ (W)w, ev);	382	ev_feed_event (EV_A_ (W)w, ev);
288	}	383	}
		384	}
		385
		386	void
		387	ev_feed_fd_event (EV_P_ int fd, int revents)
		388	{
		389	fd_event (EV_A_ fd, revents);
289	}	390	}
290		391
291	/*****************************************************************************/	392	/*****************************************************************************/
292		393
293	static void	394	static void
…		…
316	}	417	}
317		418
318	static void	419	static void
319	fd_change (EV_P_ int fd)	420	fd_change (EV_P_ int fd)
320	{	421	{
321	if (anfds [fd].reify \|\| fdchangecnt < 0)	422	if (anfds [fd].reify)
322	return;	423	return;
323		424
324	anfds [fd].reify = 1;	425	anfds [fd].reify = 1;
325		426
326	++fdchangecnt;	427	++fdchangecnt;
327	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
328	fdchanges [fdchangecnt - 1] = fd;	429	fdchanges [fdchangecnt - 1] = fd;
329	}	430	}
330		431
331	static void	432	static void
332	fd_kill (EV_P_ int fd)	433	fd_kill (EV_P_ int fd)
…		…
334	struct ev_io *w;	435	struct ev_io *w;
335		436
336	while ((w = (struct ev_io *)anfds [fd].head))	437	while ((w = (struct ev_io *)anfds [fd].head))
337	{	438	{
338	ev_io_stop (EV_A_ w);	439	ev_io_stop (EV_A_ w);
339	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	440	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
340	}	441	}
		442	}
		443
		444	static int
		445	fd_valid (int fd)
		446	{
		447	#ifdef WIN32
		448	return !!win32_get_osfhandle (fd);
		449	#else
		450	return fcntl (fd, F_GETFD) != -1;
		451	#endif
341	}	452	}
342		453
343	/* called on EBADF to verify fds */	454	/* called on EBADF to verify fds */
344	static void	455	static void
345	fd_ebadf (EV_P)	456	fd_ebadf (EV_P)
346	{	457	{
347	int fd;	458	int fd;
348		459
349	for (fd = 0; fd < anfdmax; ++fd)	460	for (fd = 0; fd < anfdmax; ++fd)
350	if (anfds [fd].events)	461	if (anfds [fd].events)
351	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	462	if (!fd_valid (fd) == -1 && errno == EBADF)
352	fd_kill (EV_A_ fd);	463	fd_kill (EV_A_ fd);
353	}	464	}
354		465
355	/* called on ENOMEM in select/poll to kill some fds and retry */	466	/* called on ENOMEM in select/poll to kill some fds and retry */
356	static void	467	static void
…		…
359	int fd;	470	int fd;
360		471
361	for (fd = anfdmax; fd--; )	472	for (fd = anfdmax; fd--; )
362	if (anfds [fd].events)	473	if (anfds [fd].events)
363	{	474	{
364	close (fd);
365	fd_kill (EV_A_ fd);	475	fd_kill (EV_A_ fd);
366	return;	476	return;
367	}	477	}
368	}	478	}
369		479
370	/* susually called after fork if method needs to re-arm all fds from scratch */	480	/* usually called after fork if method needs to re-arm all fds from scratch */
371	static void	481	static void
372	fd_rearm_all (EV_P)	482	fd_rearm_all (EV_P)
373	{	483	{
374	int fd;	484	int fd;
375		485
…		…
423		533
424	heap [k] = w;	534	heap [k] = w;
425	((W)heap [k])->active = k + 1;	535	((W)heap [k])->active = k + 1;
426	}	536	}
427		537
		538	inline void
		539	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		540	{
		541	ev_tstamp old_at = heap [k]->at;
		542	heap [k]->at = at;
		543
		544	if (old_at < at)
		545	downheap (heap, N, k);
		546	else
		547	upheap (heap, k);
		548	}
		549
428	/*****************************************************************************/	550	/*****************************************************************************/
429		551
430	typedef struct	552	typedef struct
431	{	553	{
432	struct ev_watcher_list *head;	554	WL head;
433	sig_atomic_t volatile gotsig;	555	sig_atomic_t volatile gotsig;
434	} ANSIG;	556	} ANSIG;
435		557
436	static ANSIG *signals;	558	static ANSIG *signals;
437	static int signalmax;	559	static int signalmax;
…		…
453	}	575	}
454		576
455	static void	577	static void
456	sighandler (int signum)	578	sighandler (int signum)
457	{	579	{
		580	#if WIN32
		581	signal (signum, sighandler);
		582	#endif
		583
458	signals [signum - 1].gotsig = 1;	584	signals [signum - 1].gotsig = 1;
459		585
460	if (!gotsig)	586	if (!gotsig)
461	{	587	{
462	int old_errno = errno;	588	int old_errno = errno;
463	gotsig = 1;	589	gotsig = 1;
		590	#ifdef WIN32
		591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		592	#else
464	write (sigpipe [1], &signum, 1);	593	write (sigpipe [1], &signum, 1);
		594	#endif
465	errno = old_errno;	595	errno = old_errno;
466	}	596	}
467	}	597	}
468		598
		599	void
		600	ev_feed_signal_event (EV_P_ int signum)
		601	{
		602	WL w;
		603
		604	#if EV_MULTIPLICITY
		605	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		606	#endif
		607
		608	--signum;
		609
		610	if (signum < 0 \|\| signum >= signalmax)
		611	return;
		612
		613	signals [signum].gotsig = 0;
		614
		615	for (w = signals [signum].head; w; w = w->next)
		616	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		617	}
		618
469	static void	619	static void
470	sigcb (EV_P_ struct ev_io *iow, int revents)	620	sigcb (EV_P_ struct ev_io *iow, int revents)
471	{	621	{
472	struct ev_watcher_list *w;
473	int signum;	622	int signum;
474		623
		624	#ifdef WIN32
		625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		626	#else
475	read (sigpipe [0], &revents, 1);	627	read (sigpipe [0], &revents, 1);
		628	#endif
476	gotsig = 0;	629	gotsig = 0;
477		630
478	for (signum = signalmax; signum--; )	631	for (signum = signalmax; signum--; )
479	if (signals [signum].gotsig)	632	if (signals [signum].gotsig)
480	{	633	ev_feed_signal_event (EV_A_ signum + 1);
481	signals [signum].gotsig = 0;
482
483	for (w = signals [signum].head; w; w = w->next)
484	event (EV_A_ (W)w, EV_SIGNAL);
485	}
486	}	634	}
487		635
488	static void	636	static void
489	siginit (EV_P)	637	siginit (EV_P)
490	{	638	{
…		…
502	ev_unref (EV_A); /* child watcher should not keep loop alive */	650	ev_unref (EV_A); /* child watcher should not keep loop alive */
503	}	651	}
504		652
505	/*****************************************************************************/	653	/*****************************************************************************/
506		654
		655	static struct ev_child *childs [PID_HASHSIZE];
		656
507	#ifndef WIN32	657	#ifndef WIN32
508		658
509	static struct ev_child *childs [PID_HASHSIZE];
510	static struct ev_signal childev;	659	static struct ev_signal childev;
511		660
512	#ifndef WCONTINUED	661	#ifndef WCONTINUED
513	# define WCONTINUED 0	662	# define WCONTINUED 0
514	#endif	663	#endif
…		…
522	if (w->pid == pid \|\| !w->pid)	671	if (w->pid == pid \|\| !w->pid)
523	{	672	{
524	ev_priority (w) = ev_priority (sw); /* need to do it now */	673	ev_priority (w) = ev_priority (sw); /* need to do it now */
525	w->rpid = pid;	674	w->rpid = pid;
526	w->rstatus = status;	675	w->rstatus = status;
527	event (EV_A_ (W)w, EV_CHILD);	676	ev_feed_event (EV_A_ (W)w, EV_CHILD);
528	}	677	}
529	}	678	}
530		679
531	static void	680	static void
532	childcb (EV_P_ struct ev_signal *sw, int revents)	681	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
534	int pid, status;	683	int pid, status;
535		684
536	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	685	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
537	{	686	{
538	/* make sure we are called again until all childs have been reaped */	687	/* make sure we are called again until all childs have been reaped */
539	event (EV_A_ (W)sw, EV_SIGNAL);	688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
540		689
541	child_reap (EV_A_ sw, pid, pid, status);	690	child_reap (EV_A_ sw, pid, pid, status);
542	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	691	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
543	}	692	}
544	}	693	}
…		…
601	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
602	have_monotonic = 1;	751	have_monotonic = 1;
603	}	752	}
604	#endif	753	#endif
605		754
606	rt_now = ev_time ();	755	ev_rt_now = ev_time ();
607	mn_now = get_clock ();	756	mn_now = get_clock ();
608	now_floor = mn_now;	757	now_floor = mn_now;
609	rtmn_diff = rt_now - mn_now;	758	rtmn_diff = ev_rt_now - mn_now;
610		759
611	if (methods == EVMETHOD_AUTO)	760	if (methods == EVMETHOD_AUTO)
612	if (!enable_secure () && getenv ("LIBEV_METHODS"))	761	if (!enable_secure () && getenv ("LIBEV_METHODS"))
613	methods = atoi (getenv ("LIBEV_METHODS"));	762	methods = atoi (getenv ("LIBEV_METHODS"));
614	else	763	else
…		…
628	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
629	#endif	778	#endif
630	#if EV_USE_SELECT	779	#if EV_USE_SELECT
631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
632	#endif	781	#endif
		782
		783	ev_init (&sigev, sigcb);
		784	ev_set_priority (&sigev, EV_MAXPRI);
633	}	785	}
634	}	786	}
635		787
636	void	788	void
637	loop_destroy (EV_P)	789	loop_destroy (EV_P)
638	{	790	{
		791	int i;
		792
639	#if EV_USE_WIN32	793	#if EV_USE_WIN32
640	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	794	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
641	#endif	795	#endif
642	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
643	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	797	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
…		…
650	#endif	804	#endif
651	#if EV_USE_SELECT	805	#if EV_USE_SELECT
652	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	806	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
653	#endif	807	#endif
654		808
		809	for (i = NUMPRI; i--; )
		810	array_free (pending, [i]);
		811
		812	/* have to use the microsoft-never-gets-it-right macro */
		813	array_free_microshit (fdchange);
		814	array_free_microshit (timer);
		815	#if EV_PERIODICS
		816	array_free_microshit (periodic);
		817	#endif
		818	array_free_microshit (idle);
		819	array_free_microshit (prepare);
		820	array_free_microshit (check);
		821
655	method = 0;	822	method = 0;
656	/TODO/
657	}	823	}
658		824
659	void	825	static void
660	loop_fork (EV_P)	826	loop_fork (EV_P)
661	{	827	{
662	/TODO/
663	#if EV_USE_EPOLL	828	#if EV_USE_EPOLL
664	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	829	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
665	#endif	830	#endif
666	#if EV_USE_KQUEUE	831	#if EV_USE_KQUEUE
667	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	832	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
668	#endif	833	#endif
		834
		835	if (ev_is_active (&sigev))
		836	{
		837	/* default loop */
		838
		839	ev_ref (EV_A);
		840	ev_io_stop (EV_A_ &sigev);
		841	close (sigpipe [0]);
		842	close (sigpipe [1]);
		843
		844	while (pipe (sigpipe))
		845	syserr ("(libev) error creating pipe");
		846
		847	siginit (EV_A);
		848	}
		849
		850	postfork = 0;
669	}	851	}
670		852
671	#if EV_MULTIPLICITY	853	#if EV_MULTIPLICITY
672	struct ev_loop *	854	struct ev_loop *
673	ev_loop_new (int methods)	855	ev_loop_new (int methods)
674	{	856	{
675	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	857	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		858
		859	memset (loop, 0, sizeof (struct ev_loop));
676		860
677	loop_init (EV_A_ methods);	861	loop_init (EV_A_ methods);
678		862
679	if (ev_method (EV_A))	863	if (ev_method (EV_A))
680	return loop;	864	return loop;
…		…
684		868
685	void	869	void
686	ev_loop_destroy (EV_P)	870	ev_loop_destroy (EV_P)
687	{	871	{
688	loop_destroy (EV_A);	872	loop_destroy (EV_A);
689	free (loop);	873	ev_free (loop);
690	}	874	}
691		875
692	void	876	void
693	ev_loop_fork (EV_P)	877	ev_loop_fork (EV_P)
694	{	878	{
695	loop_fork (EV_A);	879	postfork = 1;
696	}	880	}
697		881
698	#endif	882	#endif
699		883
700	#if EV_MULTIPLICITY	884	#if EV_MULTIPLICITY
701	struct ev_loop default_loop_struct;
702	static struct ev_loop *default_loop;
703
704	struct ev_loop *	885	struct ev_loop *
705	#else	886	#else
706	static int default_loop;
707
708	int	887	int
709	#endif	888	#endif
710	ev_default_loop (int methods)	889	ev_default_loop (int methods)
711	{	890	{
712	if (sigpipe [0] == sigpipe [1])	891	if (sigpipe [0] == sigpipe [1])
…		…
723		902
724	loop_init (EV_A_ methods);	903	loop_init (EV_A_ methods);
725		904
726	if (ev_method (EV_A))	905	if (ev_method (EV_A))
727	{	906	{
728	ev_watcher_init (&sigev, sigcb);
729	ev_set_priority (&sigev, EV_MAXPRI);
730	siginit (EV_A);	907	siginit (EV_A);
731		908
732	#ifndef WIN32	909	#ifndef WIN32
733	ev_signal_init (&childev, childcb, SIGCHLD);	910	ev_signal_init (&childev, childcb, SIGCHLD);
734	ev_set_priority (&childev, EV_MAXPRI);	911	ev_set_priority (&childev, EV_MAXPRI);
…		…
748	{	925	{
749	#if EV_MULTIPLICITY	926	#if EV_MULTIPLICITY
750	struct ev_loop *loop = default_loop;	927	struct ev_loop *loop = default_loop;
751	#endif	928	#endif
752		929
		930	#ifndef WIN32
753	ev_ref (EV_A); /* child watcher */	931	ev_ref (EV_A); /* child watcher */
754	ev_signal_stop (EV_A_ &childev);	932	ev_signal_stop (EV_A_ &childev);
		933	#endif
755		934
756	ev_ref (EV_A); /* signal watcher */	935	ev_ref (EV_A); /* signal watcher */
757	ev_io_stop (EV_A_ &sigev);	936	ev_io_stop (EV_A_ &sigev);
758		937
759	close (sigpipe [0]); sigpipe [0] = 0;	938	close (sigpipe [0]); sigpipe [0] = 0;
…		…
767	{	946	{
768	#if EV_MULTIPLICITY	947	#if EV_MULTIPLICITY
769	struct ev_loop *loop = default_loop;	948	struct ev_loop *loop = default_loop;
770	#endif	949	#endif
771		950
772	loop_fork (EV_A);	951	if (method)
773		952	postfork = 1;
774	ev_io_stop (EV_A_ &sigev);
775	close (sigpipe [0]);
776	close (sigpipe [1]);
777	pipe (sigpipe);
778
779	ev_ref (EV_A); /* signal watcher */
780	siginit (EV_A);
781	}	953	}
782		954
783	/*****************************************************************************/	955	/*****************************************************************************/
		956
		957	static int
		958	any_pending (EV_P)
		959	{
		960	int pri;
		961
		962	for (pri = NUMPRI; pri--; )
		963	if (pendingcnt [pri])
		964	return 1;
		965
		966	return 0;
		967	}
784		968
785	static void	969	static void
786	call_pending (EV_P)	970	call_pending (EV_P)
787	{	971	{
788	int pri;	972	int pri;
…		…
793	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
794		978
795	if (p->w)	979	if (p->w)
796	{	980	{
797	p->w->pending = 0;	981	p->w->pending = 0;
798		982	EV_CB_INVOKE (p->w, p->events);
799	((void (*)(EV_P_ W, int))&p->w->cb) (EV_A_ p->w, p->events);
800	}	983	}
801	}	984	}
802	}	985	}
803		986
804	static void	987	static void
…		…
812		995
813	/* first reschedule or stop timer */	996	/* first reschedule or stop timer */
814	if (w->repeat)	997	if (w->repeat)
815	{	998	{
816	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	999	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1000
817	((WT)w)->at = mn_now + w->repeat;	1001	((WT)w)->at += w->repeat;
		1002	if (((WT)w)->at < mn_now)
		1003	((WT)w)->at = mn_now;
		1004
818	downheap ((WT *)timers, timercnt, 0);	1005	downheap ((WT *)timers, timercnt, 0);
819	}	1006	}
820	else	1007	else
821	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1008	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
822		1009
823	event (EV_A_ (W)w, EV_TIMEOUT);	1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
824	}	1011	}
825	}	1012	}
826		1013
		1014	#if EV_PERIODICS
827	static void	1015	static void
828	periodics_reify (EV_P)	1016	periodics_reify (EV_P)
829	{	1017	{
830	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
831	{	1019	{
832	struct ev_periodic *w = periodics [0];	1020	struct ev_periodic *w = periodics [0];
833		1021
834	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
835		1023
836	/* first reschedule or stop timer */	1024	/* first reschedule or stop timer */
837	if (w->interval)	1025	if (w->reschedule_cb)
838	{	1026	{
		1027	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1028
		1029	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1030	downheap ((WT *)periodics, periodiccnt, 0);
		1031	}
		1032	else if (w->interval)
		1033	{
839	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1034	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
840	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1035	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
841	downheap ((WT *)periodics, periodiccnt, 0);	1036	downheap ((WT *)periodics, periodiccnt, 0);
842	}	1037	}
843	else	1038	else
844	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
845		1040
846	event (EV_A_ (W)w, EV_PERIODIC);	1041	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
847	}	1042	}
848	}	1043	}
849		1044
850	static void	1045	static void
851	periodics_reschedule (EV_P)	1046	periodics_reschedule (EV_P)
…		…
855	/* adjust periodics after time jump */	1050	/* adjust periodics after time jump */
856	for (i = 0; i < periodiccnt; ++i)	1051	for (i = 0; i < periodiccnt; ++i)
857	{	1052	{
858	struct ev_periodic *w = periodics [i];	1053	struct ev_periodic *w = periodics [i];
859		1054
		1055	if (w->reschedule_cb)
		1056	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
860	if (w->interval)	1057	else if (w->interval)
861	{
862	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1058	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
863
864	if (fabs (diff) >= 1e-4)
865	{
866	ev_periodic_stop (EV_A_ w);
867	ev_periodic_start (EV_A_ w);
868
869	i = 0; /* restart loop, inefficient, but time jumps should be rare */
870	}
871	}
872	}	1059	}
		1060
		1061	/* now rebuild the heap */
		1062	for (i = periodiccnt >> 1; i--; )
		1063	downheap ((WT *)periodics, periodiccnt, i);
873	}	1064	}
		1065	#endif
874		1066
875	inline int	1067	inline int
876	time_update_monotonic (EV_P)	1068	time_update_monotonic (EV_P)
877	{	1069	{
878	mn_now = get_clock ();	1070	mn_now = get_clock ();
879		1071
880	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1072	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
881	{	1073	{
882	rt_now = rtmn_diff + mn_now;	1074	ev_rt_now = rtmn_diff + mn_now;
883	return 0;	1075	return 0;
884	}	1076	}
885	else	1077	else
886	{	1078	{
887	now_floor = mn_now;	1079	now_floor = mn_now;
888	rt_now = ev_time ();	1080	ev_rt_now = ev_time ();
889	return 1;	1081	return 1;
890	}	1082	}
891	}	1083	}
892		1084
893	static void	1085	static void
…		…
902	{	1094	{
903	ev_tstamp odiff = rtmn_diff;	1095	ev_tstamp odiff = rtmn_diff;
904		1096
905	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1097	for (i = 4; --i; ) /* loop a few times, before making important decisions */
906	{	1098	{
907	rtmn_diff = rt_now - mn_now;	1099	rtmn_diff = ev_rt_now - mn_now;
908		1100
909	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1101	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
910	return; /* all is well */	1102	return; /* all is well */
911		1103
912	rt_now = ev_time ();	1104	ev_rt_now = ev_time ();
913	mn_now = get_clock ();	1105	mn_now = get_clock ();
914	now_floor = mn_now;	1106	now_floor = mn_now;
915	}	1107	}
916		1108
		1109	# if EV_PERIODICS
917	periodics_reschedule (EV_A);	1110	periodics_reschedule (EV_A);
		1111	# endif
918	/* no timer adjustment, as the monotonic clock doesn't jump */	1112	/* no timer adjustment, as the monotonic clock doesn't jump */
919	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1113	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
920	}	1114	}
921	}	1115	}
922	else	1116	else
923	#endif	1117	#endif
924	{	1118	{
925	rt_now = ev_time ();	1119	ev_rt_now = ev_time ();
926		1120
927	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1121	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
928	{	1122	{
		1123	#if EV_PERIODICS
929	periodics_reschedule (EV_A);	1124	periodics_reschedule (EV_A);
		1125	#endif
930		1126
931	/* adjust timers. this is easy, as the offset is the same for all */	1127	/* adjust timers. this is easy, as the offset is the same for all */
932	for (i = 0; i < timercnt; ++i)	1128	for (i = 0; i < timercnt; ++i)
933	((WT)timers [i])->at += rt_now - mn_now;	1129	((WT)timers [i])->at += ev_rt_now - mn_now;
934	}	1130	}
935		1131
936	mn_now = rt_now;	1132	mn_now = ev_rt_now;
937	}	1133	}
938	}	1134	}
939		1135
940	void	1136	void
941	ev_ref (EV_P)	1137	ev_ref (EV_P)
…		…
964	{	1160	{
965	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
966	call_pending (EV_A);	1162	call_pending (EV_A);
967	}	1163	}
968		1164
		1165	/* we might have forked, so reify kernel state if necessary */
		1166	if (expect_false (postfork))
		1167	loop_fork (EV_A);
		1168
969	/* update fd-related kernel structures */	1169	/* update fd-related kernel structures */
970	fd_reify (EV_A);	1170	fd_reify (EV_A);
971		1171
972	/* calculate blocking time */	1172	/* calculate blocking time */
973		1173
974	/* we only need this for !monotonic clockor timers, but as we basically	1174	/* we only need this for !monotonic clock or timers, but as we basically
975	always have timers, we just calculate it always */	1175	always have timers, we just calculate it always */
976	#if EV_USE_MONOTONIC	1176	#if EV_USE_MONOTONIC
977	if (expect_true (have_monotonic))	1177	if (expect_true (have_monotonic))
978	time_update_monotonic (EV_A);	1178	time_update_monotonic (EV_A);
979	else	1179	else
980	#endif	1180	#endif
981	{	1181	{
982	rt_now = ev_time ();	1182	ev_rt_now = ev_time ();
983	mn_now = rt_now;	1183	mn_now = ev_rt_now;
984	}	1184	}
985		1185
986	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1186	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
987	block = 0.;	1187	block = 0.;
988	else	1188	else
…		…
993	{	1193	{
994	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
995	if (block > to) block = to;	1195	if (block > to) block = to;
996	}	1196	}
997		1197
		1198	#if EV_PERIODICS
998	if (periodiccnt)	1199	if (periodiccnt)
999	{	1200	{
1000	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1001	if (block > to) block = to;	1202	if (block > to) block = to;
1002	}	1203	}
		1204	#endif
1003		1205
1004	if (block < 0.) block = 0.;	1206	if (block < 0.) block = 0.;
1005	}	1207	}
1006		1208
1007	method_poll (EV_A_ block);	1209	method_poll (EV_A_ block);
1008		1210
1009	/* update rt_now, do magic */	1211	/* update ev_rt_now, do magic */
1010	time_update (EV_A);	1212	time_update (EV_A);
1011		1213
1012	/* queue pending timers and reschedule them */	1214	/* queue pending timers and reschedule them */
1013	timers_reify (EV_A); /* relative timers called last */	1215	timers_reify (EV_A); /* relative timers called last */
		1216	#if EV_PERIODICS
1014	periodics_reify (EV_A); /* absolute timers called first */	1217	periodics_reify (EV_A); /* absolute timers called first */
		1218	#endif
1015		1219
1016	/* queue idle watchers unless io or timers are pending */	1220	/* queue idle watchers unless io or timers are pending */
1017	if (!pendingcnt)	1221	if (idlecnt && !any_pending (EV_A))
1018	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1019		1223
1020	/* queue check watchers, to be executed first */	1224	/* queue check watchers, to be executed first */
1021	if (checkcnt)	1225	if (checkcnt)
1022	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1097	return;	1301	return;
1098		1302
1099	assert (("ev_io_start called with negative fd", fd >= 0));	1303	assert (("ev_io_start called with negative fd", fd >= 0));
1100		1304
1101	ev_start (EV_A_ (W)w, 1);	1305	ev_start (EV_A_ (W)w, 1);
1102	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1306	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1103	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1307	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1104		1308
1105	fd_change (EV_A_ fd);	1309	fd_change (EV_A_ fd);
1106	}	1310	}
1107		1311
…		…
1110	{	1314	{
1111	ev_clear_pending (EV_A_ (W)w);	1315	ev_clear_pending (EV_A_ (W)w);
1112	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
1113	return;	1317	return;
1114		1318
		1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1320
1115	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1116	ev_stop (EV_A_ (W)w);	1322	ev_stop (EV_A_ (W)w);
1117		1323
1118	fd_change (EV_A_ w->fd);	1324	fd_change (EV_A_ w->fd);
1119	}	1325	}
…		…
1127	((WT)w)->at += mn_now;	1333	((WT)w)->at += mn_now;
1128		1334
1129	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1335	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1130		1336
1131	ev_start (EV_A_ (W)w, ++timercnt);	1337	ev_start (EV_A_ (W)w, ++timercnt);
1132	array_needsize (timers, timermax, timercnt, );	1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1133	timers [timercnt - 1] = w;	1339	timers [timercnt - 1] = w;
1134	upheap ((WT *)timers, timercnt - 1);	1340	upheap ((WT *)timers, timercnt - 1);
1135		1341
1136	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1137	}	1343	}
…		…
1149	{	1355	{
1150	timers [((W)w)->active - 1] = timers [timercnt];	1356	timers [((W)w)->active - 1] = timers [timercnt];
1151	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1152	}	1358	}
1153		1359
1154	((WT)w)->at = w->repeat;	1360	((WT)w)->at -= mn_now;
1155		1361
1156	ev_stop (EV_A_ (W)w);	1362	ev_stop (EV_A_ (W)w);
1157	}	1363	}
1158		1364
1159	void	1365	void
1160	ev_timer_again (EV_P_ struct ev_timer *w)	1366	ev_timer_again (EV_P_ struct ev_timer *w)
1161	{	1367	{
1162	if (ev_is_active (w))	1368	if (ev_is_active (w))
1163	{	1369	{
1164	if (w->repeat)	1370	if (w->repeat)
1165	{
1166	((WT)w)->at = mn_now + w->repeat;
1167	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
1168	}
1169	else	1372	else
1170	ev_timer_stop (EV_A_ w);	1373	ev_timer_stop (EV_A_ w);
1171	}	1374	}
1172	else if (w->repeat)	1375	else if (w->repeat)
1173	ev_timer_start (EV_A_ w);	1376	ev_timer_start (EV_A_ w);
1174	}	1377	}
1175		1378
		1379	#if EV_PERIODICS
1176	void	1380	void
1177	ev_periodic_start (EV_P_ struct ev_periodic *w)	1381	ev_periodic_start (EV_P_ struct ev_periodic *w)
1178	{	1382	{
1179	if (ev_is_active (w))	1383	if (ev_is_active (w))
1180	return;	1384	return;
1181		1385
		1386	if (w->reschedule_cb)
		1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1388	else if (w->interval)
		1389	{
1182	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1390	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1183
1184	/* this formula differs from the one in periodic_reify because we do not always round up */	1391	/* this formula differs from the one in periodic_reify because we do not always round up */
1185	if (w->interval)
1186	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1392	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1393	}
1187		1394
1188	ev_start (EV_A_ (W)w, ++periodiccnt);	1395	ev_start (EV_A_ (W)w, ++periodiccnt);
1189	array_needsize (periodics, periodicmax, periodiccnt, );	1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1190	periodics [periodiccnt - 1] = w;	1397	periodics [periodiccnt - 1] = w;
1191	upheap ((WT *)periodics, periodiccnt - 1);	1398	upheap ((WT *)periodics, periodiccnt - 1);
1192		1399
1193	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1194	}	1401	}
…		…
1210		1417
1211	ev_stop (EV_A_ (W)w);	1418	ev_stop (EV_A_ (W)w);
1212	}	1419	}
1213		1420
1214	void	1421	void
		1422	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1423	{
		1424	/* TODO: use adjustheap and recalculation */
		1425	ev_periodic_stop (EV_A_ w);
		1426	ev_periodic_start (EV_A_ w);
		1427	}
		1428	#endif
		1429
		1430	void
1215	ev_idle_start (EV_P_ struct ev_idle *w)	1431	ev_idle_start (EV_P_ struct ev_idle *w)
1216	{	1432	{
1217	if (ev_is_active (w))	1433	if (ev_is_active (w))
1218	return;	1434	return;
1219		1435
1220	ev_start (EV_A_ (W)w, ++idlecnt);	1436	ev_start (EV_A_ (W)w, ++idlecnt);
1221	array_needsize (idles, idlemax, idlecnt, );	1437	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1222	idles [idlecnt - 1] = w;	1438	idles [idlecnt - 1] = w;
1223	}	1439	}
1224		1440
1225	void	1441	void
1226	ev_idle_stop (EV_P_ struct ev_idle *w)	1442	ev_idle_stop (EV_P_ struct ev_idle *w)
…		…
1238	{	1454	{
1239	if (ev_is_active (w))	1455	if (ev_is_active (w))
1240	return;	1456	return;
1241		1457
1242	ev_start (EV_A_ (W)w, ++preparecnt);	1458	ev_start (EV_A_ (W)w, ++preparecnt);
1243	array_needsize (prepares, preparemax, preparecnt, );	1459	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1244	prepares [preparecnt - 1] = w;	1460	prepares [preparecnt - 1] = w;
1245	}	1461	}
1246		1462
1247	void	1463	void
1248	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1464	ev_prepare_stop (EV_P_ struct ev_prepare *w)
…		…
1260	{	1476	{
1261	if (ev_is_active (w))	1477	if (ev_is_active (w))
1262	return;	1478	return;
1263		1479
1264	ev_start (EV_A_ (W)w, ++checkcnt);	1480	ev_start (EV_A_ (W)w, ++checkcnt);
1265	array_needsize (checks, checkmax, checkcnt, );	1481	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1266	checks [checkcnt - 1] = w;	1482	checks [checkcnt - 1] = w;
1267	}	1483	}
1268		1484
1269	void	1485	void
1270	ev_check_stop (EV_P_ struct ev_check *w)	1486	ev_check_stop (EV_P_ struct ev_check *w)
1271	{	1487	{
1272	ev_clear_pending (EV_A_ (W)w);	1488	ev_clear_pending (EV_A_ (W)w);
1273	if (ev_is_active (w))	1489	if (!ev_is_active (w))
1274	return;	1490	return;
1275		1491
1276	checks [((W)w)->active - 1] = checks [--checkcnt];	1492	checks [((W)w)->active - 1] = checks [--checkcnt];
1277	ev_stop (EV_A_ (W)w);	1493	ev_stop (EV_A_ (W)w);
1278	}	1494	}
…		…
1291	return;	1507	return;
1292		1508
1293	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1509	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1294		1510
1295	ev_start (EV_A_ (W)w, 1);	1511	ev_start (EV_A_ (W)w, 1);
1296	array_needsize (signals, signalmax, w->signum, signals_init);	1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1297	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1298		1514
1299	if (!((WL)w)->next)	1515	if (!((WL)w)->next)
1300	{	1516	{
		1517	#if WIN32
		1518	signal (w->signum, sighandler);
		1519	#else
1301	struct sigaction sa;	1520	struct sigaction sa;
1302	sa.sa_handler = sighandler;	1521	sa.sa_handler = sighandler;
1303	sigfillset (&sa.sa_mask);	1522	sigfillset (&sa.sa_mask);
1304	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1523	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1305	sigaction (w->signum, &sa, 0);	1524	sigaction (w->signum, &sa, 0);
		1525	#endif
1306	}	1526	}
1307	}	1527	}
1308		1528
1309	void	1529	void
1310	ev_signal_stop (EV_P_ struct ev_signal *w)	1530	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1335		1555
1336	void	1556	void
1337	ev_child_stop (EV_P_ struct ev_child *w)	1557	ev_child_stop (EV_P_ struct ev_child *w)
1338	{	1558	{
1339	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1340	if (ev_is_active (w))	1560	if (!ev_is_active (w))
1341	return;	1561	return;
1342		1562
1343	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1344	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1345	}	1565	}
…		…
1360	void (cb)(int revents, void arg) = once->cb;	1580	void (cb)(int revents, void arg) = once->cb;
1361	void *arg = once->arg;	1581	void *arg = once->arg;
1362		1582
1363	ev_io_stop (EV_A_ &once->io);	1583	ev_io_stop (EV_A_ &once->io);
1364	ev_timer_stop (EV_A_ &once->to);	1584	ev_timer_stop (EV_A_ &once->to);
1365	free (once);	1585	ev_free (once);
1366		1586
1367	cb (revents, arg);	1587	cb (revents, arg);
1368	}	1588	}
1369		1589
1370	static void	1590	static void
…		…
1380	}	1600	}
1381		1601
1382	void	1602	void
1383	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1603	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1384	{	1604	{
1385	struct ev_once *once = malloc (sizeof (struct ev_once));	1605	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1386		1606
1387	if (!once)	1607	if (!once)
1388	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1389	else	1609	else
1390	{	1610	{
1391	once->cb = cb;	1611	once->cb = cb;
1392	once->arg = arg;	1612	once->arg = arg;
1393		1613
1394	ev_watcher_init (&once->io, once_cb_io);	1614	ev_init (&once->io, once_cb_io);
1395	if (fd >= 0)	1615	if (fd >= 0)
1396	{	1616	{
1397	ev_io_set (&once->io, fd, events);	1617	ev_io_set (&once->io, fd, events);
1398	ev_io_start (EV_A_ &once->io);	1618	ev_io_start (EV_A_ &once->io);
1399	}	1619	}
1400		1620
1401	ev_watcher_init (&once->to, once_cb_to);	1621	ev_init (&once->to, once_cb_to);
1402	if (timeout >= 0.)	1622	if (timeout >= 0.)
1403	{	1623	{
1404	ev_timer_set (&once->to, timeout, 0.);	1624	ev_timer_set (&once->to, timeout, 0.);
1405	ev_timer_start (EV_A_ &once->to);	1625	ev_timer_start (EV_A_ &once->to);
1406	}	1626	}
1407	}	1627	}
1408	}	1628	}
1409		1629
		1630	#ifdef __cplusplus
		1631	}
		1632	#endif
		1633

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Comparing libev/ev.c (file contents): Revision 1.64 by root, Sun Nov 4 23:14:11 2007 UTC vs. Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.64 by root, Sun Nov 4 23:14:11 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC