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

Comparing libev/ev.c (file contents):
Revision 1.63 by root, Sun Nov 4 22:03:17 2007 UTC vs.
Revision 1.94 by root, Sun Nov 11 01:29:49 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
35	# define EV_USE_MONOTONIC 1	40	# define EV_USE_MONOTONIC 1
…		…
46		51
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	53	# define EV_USE_EPOLL 1
49	# endif	54	# endif
50		55
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	57	# define EV_USE_KQUEUE 1
53	# endif	58	# endif
54		59
55	#endif	60	#endif
56		61
57	#include <math.h>	62	#include <math.h>
58	#include <stdlib.h>	63	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	64	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	65	#include <stddef.h>
63		66
64	#include <stdio.h>	67	#include <stdio.h>
65		68
66	#include <assert.h>	69	#include <assert.h>
67	#include <errno.h>	70	#include <errno.h>
68	#include <sys/types.h>	71	#include <sys/types.h>
		72	#include <time.h>
		73
		74	#include <signal.h>
		75
69	#ifndef WIN32	76	#ifndef WIN32
		77	# include <unistd.h>
		78	# include <sys/time.h>
70	# include <sys/wait.h>	79	# include <sys/wait.h>
71	#endif	80	#endif
72	#include <sys/time.h>
73	#include <time.h>
74
75	/**/	81	/**/
76		82
77	#ifndef EV_USE_MONOTONIC	83	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	84	# define EV_USE_MONOTONIC 1
79	#endif	85	#endif
…		…
94	# define EV_USE_KQUEUE 0	100	# define EV_USE_KQUEUE 0
95	#endif	101	#endif
96		102
97	#ifndef EV_USE_WIN32	103	#ifndef EV_USE_WIN32
98	# ifdef WIN32	104	# ifdef WIN32
		105	# define EV_USE_WIN32 0 /* it does not exist, use select */
		106	# undef EV_USE_SELECT
99	# define EV_USE_WIN32 1	107	# define EV_USE_SELECT 1
100	# else	108	# else
101	# define EV_USE_WIN32 0	109	# define EV_USE_WIN32 0
102	# endif	110	# endif
103	#endif	111	#endif
104		112
…		…
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	131	#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) */	132	#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 */	133	#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 */	134	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
127		135
		136	#ifdef EV_H
		137	# include EV_H
		138	#else
128	#include "ev.h"	139	# include "ev.h"
		140	#endif
129		141
130	#if __GNUC__ >= 3	142	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	143	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	144	# define inline inline
133	#else	145	#else
…		…
145	typedef struct ev_watcher_list *WL;	157	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	158	typedef struct ev_watcher_time *WT;
147		159
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		161
		162	#include "ev_win32.c"
		163
150	/*****************************************************************************/	164	/*****************************************************************************/
151		165
		166	static void (syserr_cb)(const char msg);
		167
		168	void ev_set_syserr_cb (void (cb)(const char msg))
		169	{
		170	syserr_cb = cb;
		171	}
		172
		173	static void
		174	syserr (const char *msg)
		175	{
		176	if (!msg)
		177	msg = "(libev) system error";
		178
		179	if (syserr_cb)
		180	syserr_cb (msg);
		181	else
		182	{
		183	perror (msg);
		184	abort ();
		185	}
		186	}
		187
		188	static void (alloc)(void *ptr, long size);
		189
		190	void ev_set_allocator (void (cb)(void *ptr, long size))
		191	{
		192	alloc = cb;
		193	}
		194
		195	static void *
		196	ev_realloc (void *ptr, long size)
		197	{
		198	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		199
		200	if (!ptr && size)
		201	{
		202	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		203	abort ();
		204	}
		205
		206	return ptr;
		207	}
		208
		209	#define ev_malloc(size) ev_realloc (0, (size))
		210	#define ev_free(ptr) ev_realloc ((ptr), 0)
		211
		212	/*****************************************************************************/
		213
152	typedef struct	214	typedef struct
153	{	215	{
154	struct ev_watcher_list *head;	216	WL head;
155	unsigned char events;	217	unsigned char events;
156	unsigned char reify;	218	unsigned char reify;
157	} ANFD;	219	} ANFD;
158		220
159	typedef struct	221	typedef struct
…		…
162	int events;	224	int events;
163	} ANPENDING;	225	} ANPENDING;
164		226
165	#if EV_MULTIPLICITY	227	#if EV_MULTIPLICITY
166		228
167	struct ev_loop	229	struct ev_loop
168	{	230	{
		231	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) decl;	232	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	233	#include "ev_vars.h"
171	};
172	# undef VAR	234	#undef VAR
		235	};
173	# include "ev_wrap.h"	236	#include "ev_wrap.h"
		237
		238	struct ev_loop default_loop_struct;
		239	static struct ev_loop *default_loop;
174		240
175	#else	241	#else
176		242
		243	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	244	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	245	#include "ev_vars.h"
179	# undef VAR	246	#undef VAR
		247
		248	static int default_loop;
180		249
181	#endif	250	#endif
182		251
183	/*****************************************************************************/	252	/*****************************************************************************/
184		253
185	inline ev_tstamp	254	ev_tstamp
186	ev_time (void)	255	ev_time (void)
187	{	256	{
188	#if EV_USE_REALTIME	257	#if EV_USE_REALTIME
189	struct timespec ts;	258	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	259	clock_gettime (CLOCK_REALTIME, &ts);
…		…
209	#endif	278	#endif
210		279
211	return ev_time ();	280	return ev_time ();
212	}	281	}
213		282
		283	#if EV_MULTIPLICITY
214	ev_tstamp	284	ev_tstamp
215	ev_now (EV_P)	285	ev_now (EV_P)
216	{	286	{
217	return rt_now;	287	return ev_rt_now;
218	}	288	}
		289	#endif
219		290
220	#define array_roundsize(base,n) ((n) \| 4 & ~3)	291	#define array_roundsize(type,n) ((n) \| 4 & ~3)
221		292
222	#define array_needsize(base,cur,cnt,init) \	293	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	294	if (expect_false ((cnt) > cur)) \
224	{ \	295	{ \
225	int newcnt = cur; \	296	int newcnt = cur; \
226	do \	297	do \
227	{ \	298	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	299	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	300	} \
230	while ((cnt) > newcnt); \	301	while ((cnt) > newcnt); \
231	\	302	\
232	base = realloc (base, sizeof (base) (newcnt)); \	303	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
233	init (base + cur, newcnt - cur); \	304	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	305	cur = newcnt; \
235	}	306	}
		307
		308	#define array_slim(type,stem) \
		309	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		310	{ \
		311	stem ## max = array_roundsize (stem ## cnt >> 1); \
		312	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		313	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		314	}
		315
		316	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		317	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		318	#define array_free_microshit(stem) \
		319	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		320
		321	#define array_free(stem, idx) \
		322	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
236		323
237	/*****************************************************************************/	324	/*****************************************************************************/
238		325
239	static void	326	static void
240	anfds_init (ANFD *base, int count)	327	anfds_init (ANFD *base, int count)
…		…
247		334
248	++base;	335	++base;
249	}	336	}
250	}	337	}
251		338
252	static void	339	void
253	event (EV_P_ W w, int events)	340	ev_feed_event (EV_P_ void *w, int revents)
254	{	341	{
		342	W w_ = (W)w;
		343
255	if (w->pending)	344	if (w_->pending)
256	{	345	{
257	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	346	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
258	return;	347	return;
259	}	348	}
260		349
261	w->pending = ++pendingcnt [ABSPRI (w)];	350	w_->pending = ++pendingcnt [ABSPRI (w_)];
262	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	351	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
263	pendings [ABSPRI (w)][w->pending - 1].w = w;	352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
264	pendings [ABSPRI (w)][w->pending - 1].events = events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
265	}	354	}
266		355
267	static void	356	static void
268	queue_events (EV_P_ W *events, int eventcnt, int type)	357	queue_events (EV_P_ W *events, int eventcnt, int type)
269	{	358	{
270	int i;	359	int i;
271		360
272	for (i = 0; i < eventcnt; ++i)	361	for (i = 0; i < eventcnt; ++i)
273	event (EV_A_ events [i], type);	362	ev_feed_event (EV_A_ events [i], type);
274	}	363	}
275		364
276	static void	365	inline void
277	fd_event (EV_P_ int fd, int events)	366	fd_event (EV_P_ int fd, int revents)
278	{	367	{
279	ANFD *anfd = anfds + fd;	368	ANFD *anfd = anfds + fd;
280	struct ev_io *w;	369	struct ev_io *w;
281		370
282	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	371	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
283	{	372	{
284	int ev = w->events & events;	373	int ev = w->events & revents;
285		374
286	if (ev)	375	if (ev)
287	event (EV_A_ (W)w, ev);	376	ev_feed_event (EV_A_ (W)w, ev);
288	}	377	}
		378	}
		379
		380	void
		381	ev_feed_fd_event (EV_P_ int fd, int revents)
		382	{
		383	fd_event (EV_A_ fd, revents);
289	}	384	}
290		385
291	/*****************************************************************************/	386	/*****************************************************************************/
292		387
293	static void	388	static void
…		…
306	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	401	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
307	events \|= w->events;	402	events \|= w->events;
308		403
309	anfd->reify = 0;	404	anfd->reify = 0;
310		405
311	if (anfd->events != events)
312	{
313	method_modify (EV_A_ fd, anfd->events, events);	406	method_modify (EV_A_ fd, anfd->events, events);
314	anfd->events = events;	407	anfd->events = events;
315	}
316	}	408	}
317		409
318	fdchangecnt = 0;	410	fdchangecnt = 0;
319	}	411	}
320		412
321	static void	413	static void
322	fd_change (EV_P_ int fd)	414	fd_change (EV_P_ int fd)
323	{	415	{
324	if (anfds [fd].reify \|\| fdchangecnt < 0)	416	if (anfds [fd].reify)
325	return;	417	return;
326		418
327	anfds [fd].reify = 1;	419	anfds [fd].reify = 1;
328		420
329	++fdchangecnt;	421	++fdchangecnt;
330	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
331	fdchanges [fdchangecnt - 1] = fd;	423	fdchanges [fdchangecnt - 1] = fd;
332	}	424	}
333		425
334	static void	426	static void
335	fd_kill (EV_P_ int fd)	427	fd_kill (EV_P_ int fd)
…		…
337	struct ev_io *w;	429	struct ev_io *w;
338		430
339	while ((w = (struct ev_io *)anfds [fd].head))	431	while ((w = (struct ev_io *)anfds [fd].head))
340	{	432	{
341	ev_io_stop (EV_A_ w);	433	ev_io_stop (EV_A_ w);
342	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	434	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
343	}	435	}
		436	}
		437
		438	static int
		439	fd_valid (int fd)
		440	{
		441	#ifdef WIN32
		442	return !!win32_get_osfhandle (fd);
		443	#else
		444	return fcntl (fd, F_GETFD) != -1;
		445	#endif
344	}	446	}
345		447
346	/* called on EBADF to verify fds */	448	/* called on EBADF to verify fds */
347	static void	449	static void
348	fd_ebadf (EV_P)	450	fd_ebadf (EV_P)
349	{	451	{
350	int fd;	452	int fd;
351		453
352	for (fd = 0; fd < anfdmax; ++fd)	454	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	455	if (anfds [fd].events)
354	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	456	if (!fd_valid (fd) == -1 && errno == EBADF)
355	fd_kill (EV_A_ fd);	457	fd_kill (EV_A_ fd);
356	}	458	}
357		459
358	/* called on ENOMEM in select/poll to kill some fds and retry */	460	/* called on ENOMEM in select/poll to kill some fds and retry */
359	static void	461	static void
…		…
362	int fd;	464	int fd;
363		465
364	for (fd = anfdmax; fd--; )	466	for (fd = anfdmax; fd--; )
365	if (anfds [fd].events)	467	if (anfds [fd].events)
366	{	468	{
367	close (fd);
368	fd_kill (EV_A_ fd);	469	fd_kill (EV_A_ fd);
369	return;	470	return;
370	}	471	}
371	}	472	}
372		473
373	/* susually called after fork if method needs to re-arm all fds from scratch */	474	/* usually called after fork if method needs to re-arm all fds from scratch */
374	static void	475	static void
375	fd_rearm_all (EV_P)	476	fd_rearm_all (EV_P)
376	{	477	{
377	int fd;	478	int fd;
378		479
…		…
426		527
427	heap [k] = w;	528	heap [k] = w;
428	((W)heap [k])->active = k + 1;	529	((W)heap [k])->active = k + 1;
429	}	530	}
430		531
		532	inline void
		533	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		534	{
		535	ev_tstamp old_at = heap [k]->at;
		536	heap [k]->at = at;
		537
		538	if (old_at < at)
		539	downheap (heap, N, k);
		540	else
		541	upheap (heap, k);
		542	}
		543
431	/*****************************************************************************/	544	/*****************************************************************************/
432		545
433	typedef struct	546	typedef struct
434	{	547	{
435	struct ev_watcher_list *head;	548	WL head;
436	sig_atomic_t volatile gotsig;	549	sig_atomic_t volatile gotsig;
437	} ANSIG;	550	} ANSIG;
438		551
439	static ANSIG *signals;	552	static ANSIG *signals;
440	static int signalmax;	553	static int signalmax;
…		…
456	}	569	}
457		570
458	static void	571	static void
459	sighandler (int signum)	572	sighandler (int signum)
460	{	573	{
		574	#if WIN32
		575	signal (signum, sighandler);
		576	#endif
		577
461	signals [signum - 1].gotsig = 1;	578	signals [signum - 1].gotsig = 1;
462		579
463	if (!gotsig)	580	if (!gotsig)
464	{	581	{
465	int old_errno = errno;	582	int old_errno = errno;
466	gotsig = 1;	583	gotsig = 1;
		584	#ifdef WIN32
		585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		586	#else
467	write (sigpipe [1], &signum, 1);	587	write (sigpipe [1], &signum, 1);
		588	#endif
468	errno = old_errno;	589	errno = old_errno;
469	}	590	}
470	}	591	}
471		592
		593	void
		594	ev_feed_signal_event (EV_P_ int signum)
		595	{
		596	WL w;
		597
		598	#if EV_MULTIPLICITY
		599	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		600	#endif
		601
		602	--signum;
		603
		604	if (signum < 0 \|\| signum >= signalmax)
		605	return;
		606
		607	signals [signum].gotsig = 0;
		608
		609	for (w = signals [signum].head; w; w = w->next)
		610	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		611	}
		612
472	static void	613	static void
473	sigcb (EV_P_ struct ev_io *iow, int revents)	614	sigcb (EV_P_ struct ev_io *iow, int revents)
474	{	615	{
475	struct ev_watcher_list *w;
476	int signum;	616	int signum;
477		617
		618	#ifdef WIN32
		619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		620	#else
478	read (sigpipe [0], &revents, 1);	621	read (sigpipe [0], &revents, 1);
		622	#endif
479	gotsig = 0;	623	gotsig = 0;
480		624
481	for (signum = signalmax; signum--; )	625	for (signum = signalmax; signum--; )
482	if (signals [signum].gotsig)	626	if (signals [signum].gotsig)
483	{	627	ev_feed_signal_event (EV_A_ signum + 1);
484	signals [signum].gotsig = 0;
485
486	for (w = signals [signum].head; w; w = w->next)
487	event (EV_A_ (W)w, EV_SIGNAL);
488	}
489	}	628	}
490		629
491	static void	630	static void
492	siginit (EV_P)	631	siginit (EV_P)
493	{	632	{
…		…
505	ev_unref (EV_A); /* child watcher should not keep loop alive */	644	ev_unref (EV_A); /* child watcher should not keep loop alive */
506	}	645	}
507		646
508	/*****************************************************************************/	647	/*****************************************************************************/
509		648
		649	static struct ev_child *childs [PID_HASHSIZE];
		650
510	#ifndef WIN32	651	#ifndef WIN32
511		652
512	static struct ev_child *childs [PID_HASHSIZE];
513	static struct ev_signal childev;	653	static struct ev_signal childev;
514		654
515	#ifndef WCONTINUED	655	#ifndef WCONTINUED
516	# define WCONTINUED 0	656	# define WCONTINUED 0
517	#endif	657	#endif
…		…
525	if (w->pid == pid \|\| !w->pid)	665	if (w->pid == pid \|\| !w->pid)
526	{	666	{
527	ev_priority (w) = ev_priority (sw); /* need to do it now */	667	ev_priority (w) = ev_priority (sw); /* need to do it now */
528	w->rpid = pid;	668	w->rpid = pid;
529	w->rstatus = status;	669	w->rstatus = status;
530	event (EV_A_ (W)w, EV_CHILD);	670	ev_feed_event (EV_A_ (W)w, EV_CHILD);
531	}	671	}
532	}	672	}
533		673
534	static void	674	static void
535	childcb (EV_P_ struct ev_signal *sw, int revents)	675	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
537	int pid, status;	677	int pid, status;
538		678
539	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	679	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
540	{	680	{
541	/* make sure we are called again until all childs have been reaped */	681	/* make sure we are called again until all childs have been reaped */
542	event (EV_A_ (W)sw, EV_SIGNAL);	682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
543		683
544	child_reap (EV_A_ sw, pid, pid, status);	684	child_reap (EV_A_ sw, pid, pid, status);
545	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
546	}	686	}
547	}	687	}
…		…
604	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
605	have_monotonic = 1;	745	have_monotonic = 1;
606	}	746	}
607	#endif	747	#endif
608		748
609	rt_now = ev_time ();	749	ev_rt_now = ev_time ();
610	mn_now = get_clock ();	750	mn_now = get_clock ();
611	now_floor = mn_now;	751	now_floor = mn_now;
612	rtmn_diff = rt_now - mn_now;	752	rtmn_diff = ev_rt_now - mn_now;
613		753
614	if (methods == EVMETHOD_AUTO)	754	if (methods == EVMETHOD_AUTO)
615	if (!enable_secure () && getenv ("LIBEV_METHODS"))	755	if (!enable_secure () && getenv ("LIBEV_METHODS"))
616	methods = atoi (getenv ("LIBEV_METHODS"));	756	methods = atoi (getenv ("LIBEV_METHODS"));
617	else	757	else
…		…
631	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
632	#endif	772	#endif
633	#if EV_USE_SELECT	773	#if EV_USE_SELECT
634	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
635	#endif	775	#endif
		776
		777	ev_init (&sigev, sigcb);
		778	ev_set_priority (&sigev, EV_MAXPRI);
636	}	779	}
637	}	780	}
638		781
639	void	782	void
640	loop_destroy (EV_P)	783	loop_destroy (EV_P)
641	{	784	{
		785	int i;
		786
642	#if EV_USE_WIN32	787	#if EV_USE_WIN32
643	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
644	#endif	789	#endif
645	#if EV_USE_KQUEUE	790	#if EV_USE_KQUEUE
646	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
…		…
653	#endif	798	#endif
654	#if EV_USE_SELECT	799	#if EV_USE_SELECT
655	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
656	#endif	801	#endif
657		802
		803	for (i = NUMPRI; i--; )
		804	array_free (pending, [i]);
		805
		806	/* have to use the microsoft-never-gets-it-right macro */
		807	array_free_microshit (fdchange);
		808	array_free_microshit (timer);
		809	#if EV_PERIODICS
		810	array_free_microshit (periodic);
		811	#endif
		812	array_free_microshit (idle);
		813	array_free_microshit (prepare);
		814	array_free_microshit (check);
		815
658	method = 0;	816	method = 0;
659	/TODO/
660	}	817	}
661		818
662	void	819	static void
663	loop_fork (EV_P)	820	loop_fork (EV_P)
664	{	821	{
665	/TODO/
666	#if EV_USE_EPOLL	822	#if EV_USE_EPOLL
667	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	823	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
668	#endif	824	#endif
669	#if EV_USE_KQUEUE	825	#if EV_USE_KQUEUE
670	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	826	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
671	#endif	827	#endif
		828
		829	if (ev_is_active (&sigev))
		830	{
		831	/* default loop */
		832
		833	ev_ref (EV_A);
		834	ev_io_stop (EV_A_ &sigev);
		835	close (sigpipe [0]);
		836	close (sigpipe [1]);
		837
		838	while (pipe (sigpipe))
		839	syserr ("(libev) error creating pipe");
		840
		841	siginit (EV_A);
		842	}
		843
		844	postfork = 0;
672	}	845	}
673		846
674	#if EV_MULTIPLICITY	847	#if EV_MULTIPLICITY
675	struct ev_loop *	848	struct ev_loop *
676	ev_loop_new (int methods)	849	ev_loop_new (int methods)
677	{	850	{
678	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	851	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		852
		853	memset (loop, 0, sizeof (struct ev_loop));
679		854
680	loop_init (EV_A_ methods);	855	loop_init (EV_A_ methods);
681		856
682	if (ev_method (EV_A))	857	if (ev_method (EV_A))
683	return loop;	858	return loop;
…		…
687		862
688	void	863	void
689	ev_loop_destroy (EV_P)	864	ev_loop_destroy (EV_P)
690	{	865	{
691	loop_destroy (EV_A);	866	loop_destroy (EV_A);
692	free (loop);	867	ev_free (loop);
693	}	868	}
694		869
695	void	870	void
696	ev_loop_fork (EV_P)	871	ev_loop_fork (EV_P)
697	{	872	{
698	loop_fork (EV_A);	873	postfork = 1;
699	}	874	}
700		875
701	#endif	876	#endif
702		877
703	#if EV_MULTIPLICITY	878	#if EV_MULTIPLICITY
704	struct ev_loop default_loop_struct;
705	static struct ev_loop *default_loop;
706
707	struct ev_loop *	879	struct ev_loop *
708	#else	880	#else
709	static int default_loop;
710
711	int	881	int
712	#endif	882	#endif
713	ev_default_loop (int methods)	883	ev_default_loop (int methods)
714	{	884	{
715	if (sigpipe [0] == sigpipe [1])	885	if (sigpipe [0] == sigpipe [1])
…		…
726		896
727	loop_init (EV_A_ methods);	897	loop_init (EV_A_ methods);
728		898
729	if (ev_method (EV_A))	899	if (ev_method (EV_A))
730	{	900	{
731	ev_watcher_init (&sigev, sigcb);
732	ev_set_priority (&sigev, EV_MAXPRI);
733	siginit (EV_A);	901	siginit (EV_A);
734		902
735	#ifndef WIN32	903	#ifndef WIN32
736	ev_signal_init (&childev, childcb, SIGCHLD);	904	ev_signal_init (&childev, childcb, SIGCHLD);
737	ev_set_priority (&childev, EV_MAXPRI);	905	ev_set_priority (&childev, EV_MAXPRI);
…		…
751	{	919	{
752	#if EV_MULTIPLICITY	920	#if EV_MULTIPLICITY
753	struct ev_loop *loop = default_loop;	921	struct ev_loop *loop = default_loop;
754	#endif	922	#endif
755		923
		924	#ifndef WIN32
756	ev_ref (EV_A); /* child watcher */	925	ev_ref (EV_A); /* child watcher */
757	ev_signal_stop (EV_A_ &childev);	926	ev_signal_stop (EV_A_ &childev);
		927	#endif
758		928
759	ev_ref (EV_A); /* signal watcher */	929	ev_ref (EV_A); /* signal watcher */
760	ev_io_stop (EV_A_ &sigev);	930	ev_io_stop (EV_A_ &sigev);
761		931
762	close (sigpipe [0]); sigpipe [0] = 0;	932	close (sigpipe [0]); sigpipe [0] = 0;
…		…
770	{	940	{
771	#if EV_MULTIPLICITY	941	#if EV_MULTIPLICITY
772	struct ev_loop *loop = default_loop;	942	struct ev_loop *loop = default_loop;
773	#endif	943	#endif
774		944
775	loop_fork (EV_A);	945	if (method)
776		946	postfork = 1;
777	ev_io_stop (EV_A_ &sigev);
778	close (sigpipe [0]);
779	close (sigpipe [1]);
780	pipe (sigpipe);
781
782	ev_ref (EV_A); /* signal watcher */
783	siginit (EV_A);
784	}	947	}
785		948
786	/*****************************************************************************/	949	/*****************************************************************************/
		950
		951	static int
		952	any_pending (EV_P)
		953	{
		954	int pri;
		955
		956	for (pri = NUMPRI; pri--; )
		957	if (pendingcnt [pri])
		958	return 1;
		959
		960	return 0;
		961	}
787		962
788	static void	963	static void
789	call_pending (EV_P)	964	call_pending (EV_P)
790	{	965	{
791	int pri;	966	int pri;
…		…
796	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	971	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
797		972
798	if (p->w)	973	if (p->w)
799	{	974	{
800	p->w->pending = 0;	975	p->w->pending = 0;
801		976	EV_CB_INVOKE (p->w, p->events);
802	((void (*)(EV_P_ W, int))&p->w->cb) (EV_A_ p->w, p->events);
803	}	977	}
804	}	978	}
805	}	979	}
806		980
807	static void	981	static void
…		…
815		989
816	/* first reschedule or stop timer */	990	/* first reschedule or stop timer */
817	if (w->repeat)	991	if (w->repeat)
818	{	992	{
819	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	993	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		994
820	((WT)w)->at = mn_now + w->repeat;	995	((WT)w)->at += w->repeat;
		996	if (((WT)w)->at < mn_now)
		997	((WT)w)->at = mn_now;
		998
821	downheap ((WT *)timers, timercnt, 0);	999	downheap ((WT *)timers, timercnt, 0);
822	}	1000	}
823	else	1001	else
824	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1002	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
825		1003
826	event (EV_A_ (W)w, EV_TIMEOUT);	1004	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
827	}	1005	}
828	}	1006	}
829		1007
		1008	#if EV_PERIODICS
830	static void	1009	static void
831	periodics_reify (EV_P)	1010	periodics_reify (EV_P)
832	{	1011	{
833	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1012	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
834	{	1013	{
835	struct ev_periodic *w = periodics [0];	1014	struct ev_periodic *w = periodics [0];
836		1015
837	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1016	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
838		1017
839	/* first reschedule or stop timer */	1018	/* first reschedule or stop timer */
840	if (w->interval)	1019	if (w->reschedule_cb)
841	{	1020	{
		1021	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1022
		1023	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1024	downheap ((WT *)periodics, periodiccnt, 0);
		1025	}
		1026	else if (w->interval)
		1027	{
842	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1028	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
843	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1029	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
844	downheap ((WT *)periodics, periodiccnt, 0);	1030	downheap ((WT *)periodics, periodiccnt, 0);
845	}	1031	}
846	else	1032	else
847	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1033	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
848		1034
849	event (EV_A_ (W)w, EV_PERIODIC);	1035	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
850	}	1036	}
851	}	1037	}
852		1038
853	static void	1039	static void
854	periodics_reschedule (EV_P)	1040	periodics_reschedule (EV_P)
…		…
858	/* adjust periodics after time jump */	1044	/* adjust periodics after time jump */
859	for (i = 0; i < periodiccnt; ++i)	1045	for (i = 0; i < periodiccnt; ++i)
860	{	1046	{
861	struct ev_periodic *w = periodics [i];	1047	struct ev_periodic *w = periodics [i];
862		1048
		1049	if (w->reschedule_cb)
		1050	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
863	if (w->interval)	1051	else if (w->interval)
864	{
865	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1052	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
866
867	if (fabs (diff) >= 1e-4)
868	{
869	ev_periodic_stop (EV_A_ w);
870	ev_periodic_start (EV_A_ w);
871
872	i = 0; /* restart loop, inefficient, but time jumps should be rare */
873	}
874	}
875	}	1053	}
		1054
		1055	/* now rebuild the heap */
		1056	for (i = periodiccnt >> 1; i--; )
		1057	downheap ((WT *)periodics, periodiccnt, i);
876	}	1058	}
		1059	#endif
877		1060
878	inline int	1061	inline int
879	time_update_monotonic (EV_P)	1062	time_update_monotonic (EV_P)
880	{	1063	{
881	mn_now = get_clock ();	1064	mn_now = get_clock ();
882		1065
883	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1066	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
884	{	1067	{
885	rt_now = rtmn_diff + mn_now;	1068	ev_rt_now = rtmn_diff + mn_now;
886	return 0;	1069	return 0;
887	}	1070	}
888	else	1071	else
889	{	1072	{
890	now_floor = mn_now;	1073	now_floor = mn_now;
891	rt_now = ev_time ();	1074	ev_rt_now = ev_time ();
892	return 1;	1075	return 1;
893	}	1076	}
894	}	1077	}
895		1078
896	static void	1079	static void
…		…
905	{	1088	{
906	ev_tstamp odiff = rtmn_diff;	1089	ev_tstamp odiff = rtmn_diff;
907		1090
908	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1091	for (i = 4; --i; ) /* loop a few times, before making important decisions */
909	{	1092	{
910	rtmn_diff = rt_now - mn_now;	1093	rtmn_diff = ev_rt_now - mn_now;
911		1094
912	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1095	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
913	return; /* all is well */	1096	return; /* all is well */
914		1097
915	rt_now = ev_time ();	1098	ev_rt_now = ev_time ();
916	mn_now = get_clock ();	1099	mn_now = get_clock ();
917	now_floor = mn_now;	1100	now_floor = mn_now;
918	}	1101	}
919		1102
		1103	# if EV_PERIODICS
920	periodics_reschedule (EV_A);	1104	periodics_reschedule (EV_A);
		1105	# endif
921	/* no timer adjustment, as the monotonic clock doesn't jump */	1106	/* no timer adjustment, as the monotonic clock doesn't jump */
922	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1107	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
923	}	1108	}
924	}	1109	}
925	else	1110	else
926	#endif	1111	#endif
927	{	1112	{
928	rt_now = ev_time ();	1113	ev_rt_now = ev_time ();
929		1114
930	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1115	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
931	{	1116	{
		1117	#if EV_PERIODICS
932	periodics_reschedule (EV_A);	1118	periodics_reschedule (EV_A);
		1119	#endif
933		1120
934	/* adjust timers. this is easy, as the offset is the same for all */	1121	/* adjust timers. this is easy, as the offset is the same for all */
935	for (i = 0; i < timercnt; ++i)	1122	for (i = 0; i < timercnt; ++i)
936	((WT)timers [i])->at += rt_now - mn_now;	1123	((WT)timers [i])->at += ev_rt_now - mn_now;
937	}	1124	}
938		1125
939	mn_now = rt_now;	1126	mn_now = ev_rt_now;
940	}	1127	}
941	}	1128	}
942		1129
943	void	1130	void
944	ev_ref (EV_P)	1131	ev_ref (EV_P)
…		…
967	{	1154	{
968	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1155	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
969	call_pending (EV_A);	1156	call_pending (EV_A);
970	}	1157	}
971		1158
		1159	/* we might have forked, so reify kernel state if necessary */
		1160	if (expect_false (postfork))
		1161	loop_fork (EV_A);
		1162
972	/* update fd-related kernel structures */	1163	/* update fd-related kernel structures */
973	fd_reify (EV_A);	1164	fd_reify (EV_A);
974		1165
975	/* calculate blocking time */	1166	/* calculate blocking time */
976		1167
977	/* we only need this for !monotonic clockor timers, but as we basically	1168	/* we only need this for !monotonic clock or timers, but as we basically
978	always have timers, we just calculate it always */	1169	always have timers, we just calculate it always */
979	#if EV_USE_MONOTONIC	1170	#if EV_USE_MONOTONIC
980	if (expect_true (have_monotonic))	1171	if (expect_true (have_monotonic))
981	time_update_monotonic (EV_A);	1172	time_update_monotonic (EV_A);
982	else	1173	else
983	#endif	1174	#endif
984	{	1175	{
985	rt_now = ev_time ();	1176	ev_rt_now = ev_time ();
986	mn_now = rt_now;	1177	mn_now = ev_rt_now;
987	}	1178	}
988		1179
989	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1180	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
990	block = 0.;	1181	block = 0.;
991	else	1182	else
…		…
996	{	1187	{
997	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1188	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
998	if (block > to) block = to;	1189	if (block > to) block = to;
999	}	1190	}
1000		1191
		1192	#if EV_PERIODICS
1001	if (periodiccnt)	1193	if (periodiccnt)
1002	{	1194	{
1003	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1195	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1004	if (block > to) block = to;	1196	if (block > to) block = to;
1005	}	1197	}
		1198	#endif
1006		1199
1007	if (block < 0.) block = 0.;	1200	if (block < 0.) block = 0.;
1008	}	1201	}
1009		1202
1010	method_poll (EV_A_ block);	1203	method_poll (EV_A_ block);
1011		1204
1012	/* update rt_now, do magic */	1205	/* update ev_rt_now, do magic */
1013	time_update (EV_A);	1206	time_update (EV_A);
1014		1207
1015	/* queue pending timers and reschedule them */	1208	/* queue pending timers and reschedule them */
1016	timers_reify (EV_A); /* relative timers called last */	1209	timers_reify (EV_A); /* relative timers called last */
		1210	#if EV_PERIODICS
1017	periodics_reify (EV_A); /* absolute timers called first */	1211	periodics_reify (EV_A); /* absolute timers called first */
		1212	#endif
1018		1213
1019	/* queue idle watchers unless io or timers are pending */	1214	/* queue idle watchers unless io or timers are pending */
1020	if (!pendingcnt)	1215	if (idlecnt && !any_pending (EV_A))
1021	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1216	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1022		1217
1023	/* queue check watchers, to be executed first */	1218	/* queue check watchers, to be executed first */
1024	if (checkcnt)	1219	if (checkcnt)
1025	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1220	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1100	return;	1295	return;
1101		1296
1102	assert (("ev_io_start called with negative fd", fd >= 0));	1297	assert (("ev_io_start called with negative fd", fd >= 0));
1103		1298
1104	ev_start (EV_A_ (W)w, 1);	1299	ev_start (EV_A_ (W)w, 1);
1105	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1300	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1106	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1301	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1107		1302
1108	fd_change (EV_A_ fd);	1303	fd_change (EV_A_ fd);
1109	}	1304	}
1110		1305
…		…
1113	{	1308	{
1114	ev_clear_pending (EV_A_ (W)w);	1309	ev_clear_pending (EV_A_ (W)w);
1115	if (!ev_is_active (w))	1310	if (!ev_is_active (w))
1116	return;	1311	return;
1117		1312
		1313	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1314
1118	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1315	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1119	ev_stop (EV_A_ (W)w);	1316	ev_stop (EV_A_ (W)w);
1120		1317
1121	fd_change (EV_A_ w->fd);	1318	fd_change (EV_A_ w->fd);
1122	}	1319	}
…		…
1130	((WT)w)->at += mn_now;	1327	((WT)w)->at += mn_now;
1131		1328
1132	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1329	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1133		1330
1134	ev_start (EV_A_ (W)w, ++timercnt);	1331	ev_start (EV_A_ (W)w, ++timercnt);
1135	array_needsize (timers, timermax, timercnt, );	1332	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1136	timers [timercnt - 1] = w;	1333	timers [timercnt - 1] = w;
1137	upheap ((WT *)timers, timercnt - 1);	1334	upheap ((WT *)timers, timercnt - 1);
1138		1335
1139	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1336	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1140	}	1337	}
…		…
1152	{	1349	{
1153	timers [((W)w)->active - 1] = timers [timercnt];	1350	timers [((W)w)->active - 1] = timers [timercnt];
1154	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1351	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1155	}	1352	}
1156		1353
1157	((WT)w)->at = w->repeat;	1354	((WT)w)->at -= mn_now;
1158		1355
1159	ev_stop (EV_A_ (W)w);	1356	ev_stop (EV_A_ (W)w);
1160	}	1357	}
1161		1358
1162	void	1359	void
1163	ev_timer_again (EV_P_ struct ev_timer *w)	1360	ev_timer_again (EV_P_ struct ev_timer *w)
1164	{	1361	{
1165	if (ev_is_active (w))	1362	if (ev_is_active (w))
1166	{	1363	{
1167	if (w->repeat)	1364	if (w->repeat)
1168	{
1169	((WT)w)->at = mn_now + w->repeat;
1170	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1365	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
1171	}
1172	else	1366	else
1173	ev_timer_stop (EV_A_ w);	1367	ev_timer_stop (EV_A_ w);
1174	}	1368	}
1175	else if (w->repeat)	1369	else if (w->repeat)
1176	ev_timer_start (EV_A_ w);	1370	ev_timer_start (EV_A_ w);
1177	}	1371	}
1178		1372
		1373	#if EV_PERIODICS
1179	void	1374	void
1180	ev_periodic_start (EV_P_ struct ev_periodic *w)	1375	ev_periodic_start (EV_P_ struct ev_periodic *w)
1181	{	1376	{
1182	if (ev_is_active (w))	1377	if (ev_is_active (w))
1183	return;	1378	return;
1184		1379
		1380	if (w->reschedule_cb)
		1381	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1382	else if (w->interval)
		1383	{
1185	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1384	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1186
1187	/* this formula differs from the one in periodic_reify because we do not always round up */	1385	/* this formula differs from the one in periodic_reify because we do not always round up */
1188	if (w->interval)
1189	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1386	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1387	}
1190		1388
1191	ev_start (EV_A_ (W)w, ++periodiccnt);	1389	ev_start (EV_A_ (W)w, ++periodiccnt);
1192	array_needsize (periodics, periodicmax, periodiccnt, );	1390	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1193	periodics [periodiccnt - 1] = w;	1391	periodics [periodiccnt - 1] = w;
1194	upheap ((WT *)periodics, periodiccnt - 1);	1392	upheap ((WT *)periodics, periodiccnt - 1);
1195		1393
1196	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1394	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1197	}	1395	}
…		…
1213		1411
1214	ev_stop (EV_A_ (W)w);	1412	ev_stop (EV_A_ (W)w);
1215	}	1413	}
1216		1414
1217	void	1415	void
		1416	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1417	{
		1418	/* TODO: use adjustheap and recalculation */
		1419	ev_periodic_stop (EV_A_ w);
		1420	ev_periodic_start (EV_A_ w);
		1421	}
		1422	#endif
		1423
		1424	void
1218	ev_idle_start (EV_P_ struct ev_idle *w)	1425	ev_idle_start (EV_P_ struct ev_idle *w)
1219	{	1426	{
1220	if (ev_is_active (w))	1427	if (ev_is_active (w))
1221	return;	1428	return;
1222		1429
1223	ev_start (EV_A_ (W)w, ++idlecnt);	1430	ev_start (EV_A_ (W)w, ++idlecnt);
1224	array_needsize (idles, idlemax, idlecnt, );	1431	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1225	idles [idlecnt - 1] = w;	1432	idles [idlecnt - 1] = w;
1226	}	1433	}
1227		1434
1228	void	1435	void
1229	ev_idle_stop (EV_P_ struct ev_idle *w)	1436	ev_idle_stop (EV_P_ struct ev_idle *w)
1230	{	1437	{
1231	ev_clear_pending (EV_A_ (W)w);	1438	ev_clear_pending (EV_A_ (W)w);
1232	if (ev_is_active (w))	1439	if (!ev_is_active (w))
1233	return;	1440	return;
1234		1441
1235	idles [((W)w)->active - 1] = idles [--idlecnt];	1442	idles [((W)w)->active - 1] = idles [--idlecnt];
1236	ev_stop (EV_A_ (W)w);	1443	ev_stop (EV_A_ (W)w);
1237	}	1444	}
…		…
1241	{	1448	{
1242	if (ev_is_active (w))	1449	if (ev_is_active (w))
1243	return;	1450	return;
1244		1451
1245	ev_start (EV_A_ (W)w, ++preparecnt);	1452	ev_start (EV_A_ (W)w, ++preparecnt);
1246	array_needsize (prepares, preparemax, preparecnt, );	1453	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1247	prepares [preparecnt - 1] = w;	1454	prepares [preparecnt - 1] = w;
1248	}	1455	}
1249		1456
1250	void	1457	void
1251	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1458	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1252	{	1459	{
1253	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1254	if (ev_is_active (w))	1461	if (!ev_is_active (w))
1255	return;	1462	return;
1256		1463
1257	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1464	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1258	ev_stop (EV_A_ (W)w);	1465	ev_stop (EV_A_ (W)w);
1259	}	1466	}
…		…
1263	{	1470	{
1264	if (ev_is_active (w))	1471	if (ev_is_active (w))
1265	return;	1472	return;
1266		1473
1267	ev_start (EV_A_ (W)w, ++checkcnt);	1474	ev_start (EV_A_ (W)w, ++checkcnt);
1268	array_needsize (checks, checkmax, checkcnt, );	1475	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1269	checks [checkcnt - 1] = w;	1476	checks [checkcnt - 1] = w;
1270	}	1477	}
1271		1478
1272	void	1479	void
1273	ev_check_stop (EV_P_ struct ev_check *w)	1480	ev_check_stop (EV_P_ struct ev_check *w)
1274	{	1481	{
1275	ev_clear_pending (EV_A_ (W)w);	1482	ev_clear_pending (EV_A_ (W)w);
1276	if (ev_is_active (w))	1483	if (!ev_is_active (w))
1277	return;	1484	return;
1278		1485
1279	checks [((W)w)->active - 1] = checks [--checkcnt];	1486	checks [((W)w)->active - 1] = checks [--checkcnt];
1280	ev_stop (EV_A_ (W)w);	1487	ev_stop (EV_A_ (W)w);
1281	}	1488	}
…		…
1294	return;	1501	return;
1295		1502
1296	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1503	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1297		1504
1298	ev_start (EV_A_ (W)w, 1);	1505	ev_start (EV_A_ (W)w, 1);
1299	array_needsize (signals, signalmax, w->signum, signals_init);	1506	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1300	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1507	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1301		1508
1302	if (!((WL)w)->next)	1509	if (!((WL)w)->next)
1303	{	1510	{
		1511	#if WIN32
		1512	signal (w->signum, sighandler);
		1513	#else
1304	struct sigaction sa;	1514	struct sigaction sa;
1305	sa.sa_handler = sighandler;	1515	sa.sa_handler = sighandler;
1306	sigfillset (&sa.sa_mask);	1516	sigfillset (&sa.sa_mask);
1307	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1517	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1308	sigaction (w->signum, &sa, 0);	1518	sigaction (w->signum, &sa, 0);
		1519	#endif
1309	}	1520	}
1310	}	1521	}
1311		1522
1312	void	1523	void
1313	ev_signal_stop (EV_P_ struct ev_signal *w)	1524	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1363	void (cb)(int revents, void arg) = once->cb;	1574	void (cb)(int revents, void arg) = once->cb;
1364	void *arg = once->arg;	1575	void *arg = once->arg;
1365		1576
1366	ev_io_stop (EV_A_ &once->io);	1577	ev_io_stop (EV_A_ &once->io);
1367	ev_timer_stop (EV_A_ &once->to);	1578	ev_timer_stop (EV_A_ &once->to);
1368	free (once);	1579	ev_free (once);
1369		1580
1370	cb (revents, arg);	1581	cb (revents, arg);
1371	}	1582	}
1372		1583
1373	static void	1584	static void
…		…
1383	}	1594	}
1384		1595
1385	void	1596	void
1386	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1597	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1387	{	1598	{
1388	struct ev_once *once = malloc (sizeof (struct ev_once));	1599	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1389		1600
1390	if (!once)	1601	if (!once)
1391	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1602	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1392	else	1603	else
1393	{	1604	{
1394	once->cb = cb;	1605	once->cb = cb;
1395	once->arg = arg;	1606	once->arg = arg;
1396		1607
1397	ev_watcher_init (&once->io, once_cb_io);	1608	ev_init (&once->io, once_cb_io);
1398	if (fd >= 0)	1609	if (fd >= 0)
1399	{	1610	{
1400	ev_io_set (&once->io, fd, events);	1611	ev_io_set (&once->io, fd, events);
1401	ev_io_start (EV_A_ &once->io);	1612	ev_io_start (EV_A_ &once->io);
1402	}	1613	}
1403		1614
1404	ev_watcher_init (&once->to, once_cb_to);	1615	ev_init (&once->to, once_cb_to);
1405	if (timeout >= 0.)	1616	if (timeout >= 0.)
1406	{	1617	{
1407	ev_timer_set (&once->to, timeout, 0.);	1618	ev_timer_set (&once->to, timeout, 0.);
1408	ev_timer_start (EV_A_ &once->to);	1619	ev_timer_start (EV_A_ &once->to);
1409	}	1620	}
1410	}	1621	}
1411	}	1622	}
1412		1623
		1624	#ifdef __cplusplus
		1625	}
		1626	#endif
		1627

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Comparing libev/ev.c (file contents): Revision 1.63 by root, Sun Nov 4 22:03:17 2007 UTC vs. Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.63 by root, Sun Nov 4 22:03:17 2007 UTC vs.
Revision 1.94 by root, Sun Nov 11 01:29:49 2007 UTC