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

Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.52 by root, Sat Nov 3 22:10:39 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	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
33	#endif	33	#endif
34		34
35	#include <math.h>	35	#include <math.h>
36	#include <stdlib.h>	36	#include <stdlib.h>
…		…
58		58
59	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
61	#endif	61	#endif
62		62
63	#ifndef EV_USE_POLL	63	#ifndef EV_USEV_POLL
64	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	65	#endif
66		66
67	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
69	#endif	69	#endif
…		…
113		113
114	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
117		117
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */
119	ev_tstamp ev_now;	119	static ev_tstamp rt_now;
120	int ev_method;	120	static int method;
121		121
122	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
123		123
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
125	static void (*method_modify)(int fd, int oev, int nev);	125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);	126	static void (*method_poll)(EV_P_ ev_tstamp timeout);
		127
		128	static int activecnt; /* number of active events */
		129
		130	#if EV_USE_SELECT
		131	static unsigned char vec_ri, vec_ro, vec_wi, vec_wo;
		132	static int vec_max;
		133	#endif
		134
		135	#if EV_USEV_POLL
		136	static struct pollfd *polls;
		137	static int pollmax, pollcnt;
		138	static int pollidxs; / maps fds into structure indices */
		139	static int pollidxmax;
		140	#endif
		141
		142	#if EV_USE_EPOLL
		143	static int epoll_fd = -1;
		144
		145	static struct epoll_event *events;
		146	static int eventmax;
		147	#endif
		148
		149	#if EV_USE_KQUEUE
		150	static int kqueue_fd;
		151	static struct kevent *kqueue_changes;
		152	static int kqueue_changemax, kqueue_changecnt;
		153	static struct kevent *kqueue_events;
		154	static int kqueue_eventmax;
		155	#endif
127		156
128	/*****************************************************************************/	157	/*****************************************************************************/
129		158
130	ev_tstamp	159	inline ev_tstamp
131	ev_time (void)	160	ev_time (void)
132	{	161	{
133	#if EV_USE_REALTIME	162	#if EV_USE_REALTIME
134	struct timespec ts;	163	struct timespec ts;
135	clock_gettime (CLOCK_REALTIME, &ts);	164	clock_gettime (CLOCK_REALTIME, &ts);
…		…
139	gettimeofday (&tv, 0);	168	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	169	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	170	#endif
142	}	171	}
143		172
144	static ev_tstamp	173	inline ev_tstamp
145	get_clock (void)	174	get_clock (void)
146	{	175	{
147	#if EV_USE_MONOTONIC	176	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	177	if (expect_true (have_monotonic))
149	{	178	{
…		…
152	return ts.tv_sec + ts.tv_nsec * 1e-9;	181	return ts.tv_sec + ts.tv_nsec * 1e-9;
153	}	182	}
154	#endif	183	#endif
155		184
156	return ev_time ();	185	return ev_time ();
		186	}
		187
		188	ev_tstamp
		189	ev_now (EV_P)
		190	{
		191	return rt_now;
157	}	192	}
158		193
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	194	#define array_roundsize(base,n) ((n) \| 4 & ~3)
160		195
161	#define array_needsize(base,cur,cnt,init) \	196	#define array_needsize(base,cur,cnt,init) \
…		…
175		210
176	/*****************************************************************************/	211	/*****************************************************************************/
177		212
178	typedef struct	213	typedef struct
179	{	214	{
180	struct ev_io *head;	215	struct ev_watcher_list *head;
181	unsigned char events;	216	unsigned char events;
182	unsigned char reify;	217	unsigned char reify;
183	} ANFD;	218	} ANFD;
184		219
185	static ANFD *anfds;	220	static ANFD *anfds;
…		…
206		241
207	static ANPENDING *pendings [NUMPRI];	242	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];	243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209		244
210	static void	245	static void
211	event (W w, int events)	246	event (EV_P_ W w, int events)
212	{	247	{
213	if (w->pending)	248	if (w->pending)
214	{	249	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
216	return;	251	return;
…		…
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	256	pendings [ABSPRI (w)][w->pending - 1].w = w;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	257	pendings [ABSPRI (w)][w->pending - 1].events = events;
223	}	258	}
224		259
225	static void	260	static void
226	queue_events (W *events, int eventcnt, int type)	261	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	262	{
228	int i;	263	int i;
229		264
230	for (i = 0; i < eventcnt; ++i)	265	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	266	event (EV_A_ events [i], type);
232	}	267	}
233		268
234	static void	269	static void
235	fd_event (int fd, int events)	270	fd_event (EV_P_ int fd, int events)
236	{	271	{
237	ANFD *anfd = anfds + fd;	272	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	273	struct ev_io *w;
239		274
240	for (w = anfd->head; w; w = w->next)	275	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	276	{
242	int ev = w->events & events;	277	int ev = w->events & events;
243		278
244	if (ev)	279	if (ev)
245	event ((W)w, ev);	280	event (EV_A_ (W)w, ev);
246	}	281	}
247	}	282	}
248		283
249	/*****************************************************************************/	284	/*****************************************************************************/
250		285
251	static int *fdchanges;	286	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;	287	static int fdchangemax, fdchangecnt;
253		288
254	static void	289	static void
255	fd_reify (void)	290	fd_reify (EV_P)
256	{	291	{
257	int i;	292	int i;
258		293
259	for (i = 0; i < fdchangecnt; ++i)	294	for (i = 0; i < fdchangecnt; ++i)
260	{	295	{
…		…
262	ANFD *anfd = anfds + fd;	297	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	298	struct ev_io *w;
264		299
265	int events = 0;	300	int events = 0;
266		301
267	for (w = anfd->head; w; w = w->next)	302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	303	events \|= w->events;
269		304
270	anfd->reify = 0;	305	anfd->reify = 0;
271		306
272	if (anfd->events != events)	307	if (anfd->events != events)
273	{	308	{
274	method_modify (fd, anfd->events, events);	309	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	310	anfd->events = events;
276	}	311	}
277	}	312	}
278		313
279	fdchangecnt = 0;	314	fdchangecnt = 0;
280	}	315	}
281		316
282	static void	317	static void
283	fd_change (int fd)	318	fd_change (EV_P_ int fd)
284	{	319	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	320	if (anfds [fd].reify \|\| fdchangecnt < 0)
286	return;	321	return;
287		322
288	anfds [fd].reify = 1;	323	anfds [fd].reify = 1;
…		…
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
292	fdchanges [fdchangecnt - 1] = fd;	327	fdchanges [fdchangecnt - 1] = fd;
293	}	328	}
294		329
295	static void	330	static void
296	fd_kill (int fd)	331	fd_kill (EV_P_ int fd)
297	{	332	{
298	struct ev_io *w;	333	struct ev_io *w;
299		334
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	335	while ((w = (struct ev_io *)anfds [fd].head))
302	{	336	{
303	ev_io_stop (w);	337	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	339	}
306	}	340	}
307		341
308	/* called on EBADF to verify fds */	342	/* called on EBADF to verify fds */
309	static void	343	static void
310	fd_ebadf (void)	344	fd_ebadf (EV_P)
311	{	345	{
312	int fd;	346	int fd;
313		347
314	for (fd = 0; fd < anfdmax; ++fd)	348	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	349	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
317	fd_kill (fd);	351	fd_kill (EV_A_ fd);
318	}	352	}
319		353
320	/* called on ENOMEM in select/poll to kill some fds and retry */	354	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	355	static void
322	fd_enomem (void)	356	fd_enomem (EV_P)
323	{	357	{
324	int fd = anfdmax;	358	int fd = anfdmax;
325		359
326	while (fd--)	360	while (fd--)
327	if (anfds [fd].events)	361	if (anfds [fd].events)
328	{	362	{
329	close (fd);	363	close (fd);
330	fd_kill (fd);	364	fd_kill (EV_A_ fd);
331	return;	365	return;
332	}	366	}
333	}	367	}
334		368
335	/*****************************************************************************/	369	/*****************************************************************************/
…		…
383		417
384	/*****************************************************************************/	418	/*****************************************************************************/
385		419
386	typedef struct	420	typedef struct
387	{	421	{
388	struct ev_signal *head;	422	struct ev_watcher_list *head;
389	sig_atomic_t volatile gotsig;	423	sig_atomic_t volatile gotsig;
390	} ANSIG;	424	} ANSIG;
391		425
392	static ANSIG *signals;	426	static ANSIG *signals;
393	static int signalmax;	427	static int signalmax;
…		…
413	{	447	{
414	signals [signum - 1].gotsig = 1;	448	signals [signum - 1].gotsig = 1;
415		449
416	if (!gotsig)	450	if (!gotsig)
417	{	451	{
		452	int old_errno = errno;
418	gotsig = 1;	453	gotsig = 1;
419	write (sigpipe [1], &signum, 1);	454	write (sigpipe [1], &signum, 1);
		455	errno = old_errno;
420	}	456	}
421	}	457	}
422		458
423	static void	459	static void
424	sigcb (struct ev_io *iow, int revents)	460	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	461	{
426	struct ev_signal *w;	462	struct ev_watcher_list *w;
427	int signum;	463	int signum;
428		464
429	read (sigpipe [0], &revents, 1);	465	read (sigpipe [0], &revents, 1);
430	gotsig = 0;	466	gotsig = 0;
431		467
…		…
433	if (signals [signum].gotsig)	469	if (signals [signum].gotsig)
434	{	470	{
435	signals [signum].gotsig = 0;	471	signals [signum].gotsig = 0;
436		472
437	for (w = signals [signum].head; w; w = w->next)	473	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);	474	event (EV_A_ (W)w, EV_SIGNAL);
439	}	475	}
440	}	476	}
441		477
442	static void	478	static void
443	siginit (void)	479	siginit (EV_P)
444	{	480	{
445	#ifndef WIN32	481	#ifndef WIN32
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	482	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	483	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448		484
…		…
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	488	#endif
453		489
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	490	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	491	ev_io_start (&sigev);
		492	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	493	}
457		494
458	/*****************************************************************************/	495	/*****************************************************************************/
459		496
460	static struct ev_idle **idles;	497	static struct ev_idle **idles;
…		…
476	#ifndef WCONTINUED	513	#ifndef WCONTINUED
477	# define WCONTINUED 0	514	# define WCONTINUED 0
478	#endif	515	#endif
479		516
480	static void	517	static void
481	childcb (struct ev_signal *sw, int revents)	518	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	519	{
483	struct ev_child *w;	520	struct ev_child *w;
		521
		522	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		523	if (w->pid == pid \|\| !w->pid)
		524	{
		525	w->priority = sw->priority; /* need to do it now */
		526	w->rpid = pid;
		527	w->rstatus = status;
		528	event (EV_A_ (W)w, EV_CHILD);
		529	}
		530	}
		531
		532	static void
		533	childcb (EV_P_ struct ev_signal *sw, int revents)
		534	{
484	int pid, status;	535	int pid, status;
485		536
486	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	537	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
487	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	538	{
488	if (w->pid == pid \|\| !w->pid)	539	/* make sure we are called again until all childs have been reaped */
489	{	540	event (EV_A_ (W)sw, EV_SIGNAL);
490	w->status = status;	541
491	event ((W)w, EV_CHILD);	542	child_reap (EV_A_ sw, pid, pid, status);
492	}	543	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		544	}
493	}	545	}
494		546
495	#endif	547	#endif
496		548
497	/*****************************************************************************/	549	/*****************************************************************************/
…		…
500	# include "ev_kqueue.c"	552	# include "ev_kqueue.c"
501	#endif	553	#endif
502	#if EV_USE_EPOLL	554	#if EV_USE_EPOLL
503	# include "ev_epoll.c"	555	# include "ev_epoll.c"
504	#endif	556	#endif
505	#if EV_USE_POLL	557	#if EV_USEV_POLL
506	# include "ev_poll.c"	558	# include "ev_poll.c"
507	#endif	559	#endif
508	#if EV_USE_SELECT	560	#if EV_USE_SELECT
509	# include "ev_select.c"	561	# include "ev_select.c"
510	#endif	562	#endif
…		…
519	ev_version_minor (void)	571	ev_version_minor (void)
520	{	572	{
521	return EV_VERSION_MINOR;	573	return EV_VERSION_MINOR;
522	}	574	}
523		575
524	/* return true if we are running with elevated privileges and ignore env variables */	576	/* return true if we are running with elevated privileges and should ignore env variables */
525	static int	577	static int
526	enable_secure ()	578	enable_secure (void)
527	{	579	{
		580	#ifdef WIN32
		581	return 0;
		582	#else
528	return getuid () != geteuid ()	583	return getuid () != geteuid ()
529	\|\| getgid () != getegid ();	584	\|\| getgid () != getegid ();
		585	#endif
530	}	586	}
531		587
		588	int
		589	ev_method (EV_P)
		590	{
		591	return method;
		592	}
		593
		594	int
532	int ev_init (int methods)	595	ev_init (EV_P_ int methods)
533	{	596	{
534	if (!ev_method)	597	if (!method)
535	{	598	{
536	#if EV_USE_MONOTONIC	599	#if EV_USE_MONOTONIC
537	{	600	{
538	struct timespec ts;	601	struct timespec ts;
539	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	602	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
540	have_monotonic = 1;	603	have_monotonic = 1;
541	}	604	}
542	#endif	605	#endif
543		606
544	ev_now = ev_time ();	607	rt_now = ev_time ();
545	now = get_clock ();	608	mn_now = get_clock ();
546	now_floor = now;	609	now_floor = mn_now;
547	diff = ev_now - now;	610	diff = rt_now - mn_now;
548		611
549	if (pipe (sigpipe))	612	if (pipe (sigpipe))
550	return 0;	613	return 0;
551		614
552	if (methods == EVMETHOD_AUTO)	615	if (methods == EVMETHOD_AUTO)
553	if (!enable_secure () && getenv ("LIBEV_METHODS"))	616	if (!enable_secure () && getenv ("LIBmethodS"))
554	methods = atoi (getenv ("LIBEV_METHODS"));	617	methods = atoi (getenv ("LIBmethodS"));
555	else	618	else
556	methods = EVMETHOD_ANY;	619	methods = EVMETHOD_ANY;
557		620
558	ev_method = 0;	621	method = 0;
559	#if EV_USE_KQUEUE	622	#if EV_USE_KQUEUE
560	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	623	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
561	#endif	624	#endif
562	#if EV_USE_EPOLL	625	#if EV_USE_EPOLL
563	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	626	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
564	#endif	627	#endif
565	#if EV_USE_POLL	628	#if EV_USEV_POLL
566	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	629	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
567	#endif	630	#endif
568	#if EV_USE_SELECT	631	#if EV_USE_SELECT
569	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	632	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
570	#endif	633	#endif
571		634
572	if (ev_method)	635	if (method)
573	{	636	{
574	ev_watcher_init (&sigev, sigcb);	637	ev_watcher_init (&sigev, sigcb);
		638	ev_set_priority (&sigev, EV_MAXPRI);
575	siginit ();	639	siginit (EV_A);
576		640
577	#ifndef WIN32	641	#ifndef WIN32
578	ev_signal_init (&childev, childcb, SIGCHLD);	642	ev_signal_init (&childev, childcb, SIGCHLD);
		643	ev_set_priority (&childev, EV_MAXPRI);
579	ev_signal_start (&childev);	644	ev_signal_start (EV_A_ &childev);
		645	ev_unref (EV_A); /* child watcher should not keep loop alive */
580	#endif	646	#endif
581	}	647	}
582	}	648	}
583		649
584	return ev_method;	650	return method;
585	}	651	}
586		652
587	/*****************************************************************************/	653	/*****************************************************************************/
588		654
589	void	655	void
…		…
600		666
601	void	667	void
602	ev_fork_child (void)	668	ev_fork_child (void)
603	{	669	{
604	#if EV_USE_EPOLL	670	#if EV_USE_EPOLL
605	if (ev_method == EVMETHOD_EPOLL)	671	if (method == EVMETHOD_EPOLL)
606	epoll_postfork_child ();	672	epoll_postfork_child ();
607	#endif	673	#endif
608		674
609	ev_io_stop (&sigev);	675	ev_io_stop (&sigev);
610	close (sigpipe [0]);	676	close (sigpipe [0]);
…		…
614	}	680	}
615		681
616	/*****************************************************************************/	682	/*****************************************************************************/
617		683
618	static void	684	static void
619	call_pending (void)	685	call_pending (EV_P)
620	{	686	{
621	int pri;	687	int pri;
622		688
623	for (pri = NUMPRI; pri--; )	689	for (pri = NUMPRI; pri--; )
624	while (pendingcnt [pri])	690	while (pendingcnt [pri])
…		…
626	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	692	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
627		693
628	if (p->w)	694	if (p->w)
629	{	695	{
630	p->w->pending = 0;	696	p->w->pending = 0;
631	p->w->cb (p->w, p->events);	697	p->w->cb (EV_A_ p->w, p->events);
632	}	698	}
633	}	699	}
634	}	700	}
635		701
636	static void	702	static void
637	timers_reify (void)	703	timers_reify (EV_P)
638	{	704	{
639	while (timercnt && timers [0]->at <= now)	705	while (timercnt && timers [0]->at <= mn_now)
640	{	706	{
641	struct ev_timer *w = timers [0];	707	struct ev_timer *w = timers [0];
642		708
643	/* first reschedule or stop timer */	709	/* first reschedule or stop timer */
644	if (w->repeat)	710	if (w->repeat)
645	{	711	{
646	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	712	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
647	w->at = now + w->repeat;	713	w->at = mn_now + w->repeat;
648	downheap ((WT *)timers, timercnt, 0);	714	downheap ((WT *)timers, timercnt, 0);
649	}	715	}
650	else	716	else
651	ev_timer_stop (w); /* nonrepeating: stop timer */	717	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
652		718
653	event ((W)w, EV_TIMEOUT);	719	event ((W)w, EV_TIMEOUT);
654	}	720	}
655	}	721	}
656		722
657	static void	723	static void
658	periodics_reify (void)	724	periodics_reify (EV_P)
659	{	725	{
660	while (periodiccnt && periodics [0]->at <= ev_now)	726	while (periodiccnt && periodics [0]->at <= rt_now)
661	{	727	{
662	struct ev_periodic *w = periodics [0];	728	struct ev_periodic *w = periodics [0];
663		729
664	/* first reschedule or stop timer */	730	/* first reschedule or stop timer */
665	if (w->interval)	731	if (w->interval)
666	{	732	{
667	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	733	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;
668	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	734	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
669	downheap ((WT *)periodics, periodiccnt, 0);	735	downheap ((WT *)periodics, periodiccnt, 0);
670	}	736	}
671	else	737	else
672	ev_periodic_stop (w); /* nonrepeating: stop timer */	738	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
673		739
674	event ((W)w, EV_PERIODIC);	740	event (EV_A_ (W)w, EV_PERIODIC);
675	}	741	}
676	}	742	}
677		743
678	static void	744	static void
679	periodics_reschedule (ev_tstamp diff)	745	periodics_reschedule (EV_P_ ev_tstamp diff)
680	{	746	{
681	int i;	747	int i;
682		748
683	/* adjust periodics after time jump */	749	/* adjust periodics after time jump */
684	for (i = 0; i < periodiccnt; ++i)	750	for (i = 0; i < periodiccnt; ++i)
685	{	751	{
686	struct ev_periodic *w = periodics [i];	752	struct ev_periodic *w = periodics [i];
687		753
688	if (w->interval)	754	if (w->interval)
689	{	755	{
690	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	756	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
691		757
692	if (fabs (diff) >= 1e-4)	758	if (fabs (diff) >= 1e-4)
693	{	759	{
694	ev_periodic_stop (w);	760	ev_periodic_stop (EV_A_ w);
695	ev_periodic_start (w);	761	ev_periodic_start (EV_A_ w);
696		762
697	i = 0; /* restart loop, inefficient, but time jumps should be rare */	763	i = 0; /* restart loop, inefficient, but time jumps should be rare */
698	}	764	}
699	}	765	}
700	}	766	}
701	}	767	}
702		768
703	static int	769	inline int
704	time_update_monotonic (void)	770	time_update_monotonic (EV_P)
705	{	771	{
706	now = get_clock ();	772	mn_now = get_clock ();
707		773
708	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	774	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
709	{	775	{
710	ev_now = now + diff;	776	rt_now = mn_now + diff;
711	return 0;	777	return 0;
712	}	778	}
713	else	779	else
714	{	780	{
715	now_floor = now;	781	now_floor = mn_now;
716	ev_now = ev_time ();	782	rt_now = ev_time ();
717	return 1;	783	return 1;
718	}	784	}
719	}	785	}
720		786
721	static void	787	static void
722	time_update (void)	788	time_update (EV_P)
723	{	789	{
724	int i;	790	int i;
725		791
726	#if EV_USE_MONOTONIC	792	#if EV_USE_MONOTONIC
727	if (expect_true (have_monotonic))	793	if (expect_true (have_monotonic))
728	{	794	{
729	if (time_update_monotonic ())	795	if (time_update_monotonic (EV_A))
730	{	796	{
731	ev_tstamp odiff = diff;	797	ev_tstamp odiff = diff;
732		798
733	for (i = 4; --i; ) /* loop a few times, before making important decisions */	799	for (i = 4; --i; ) /* loop a few times, before making important decisions */
734	{	800	{
735	diff = ev_now - now;	801	diff = rt_now - mn_now;
736		802
737	if (fabs (odiff - diff) < MIN_TIMEJUMP)	803	if (fabs (odiff - diff) < MIN_TIMEJUMP)
738	return; /* all is well */	804	return; /* all is well */
739		805
740	ev_now = ev_time ();	806	rt_now = ev_time ();
741	now = get_clock ();	807	mn_now = get_clock ();
742	now_floor = now;	808	now_floor = mn_now;
743	}	809	}
744		810
745	periodics_reschedule (diff - odiff);	811	periodics_reschedule (EV_A_ diff - odiff);
746	/* no timer adjustment, as the monotonic clock doesn't jump */	812	/* no timer adjustment, as the monotonic clock doesn't jump */
747	}	813	}
748	}	814	}
749	else	815	else
750	#endif	816	#endif
751	{	817	{
752	ev_now = ev_time ();	818	rt_now = ev_time ();
753		819
754	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	820	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
755	{	821	{
756	periodics_reschedule (ev_now - now);	822	periodics_reschedule (EV_A_ rt_now - mn_now);
757		823
758	/* adjust timers. this is easy, as the offset is the same for all */	824	/* adjust timers. this is easy, as the offset is the same for all */
759	for (i = 0; i < timercnt; ++i)	825	for (i = 0; i < timercnt; ++i)
760	timers [i]->at += diff;	826	timers [i]->at += diff;
761	}	827	}
762		828
763	now = ev_now;	829	mn_now = rt_now;
764	}	830	}
765	}	831	}
766		832
767	int ev_loop_done;	833	void
		834	ev_ref (EV_P)
		835	{
		836	++activecnt;
		837	}
768		838
		839	void
		840	ev_unref (EV_P)
		841	{
		842	--activecnt;
		843	}
		844
		845	static int loop_done;
		846
		847	void
769	void ev_loop (int flags)	848	ev_loop (EV_P_ int flags)
770	{	849	{
771	double block;	850	double block;
772	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	851	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
773		852
774	do	853	do
775	{	854	{
776	/* queue check watchers (and execute them) */	855	/* queue check watchers (and execute them) */
777	if (expect_false (preparecnt))	856	if (expect_false (preparecnt))
778	{	857	{
779	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	858	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
780	call_pending ();	859	call_pending (EV_A);
781	}	860	}
782		861
783	/* update fd-related kernel structures */	862	/* update fd-related kernel structures */
784	fd_reify ();	863	fd_reify (EV_A);
785		864
786	/* calculate blocking time */	865	/* calculate blocking time */
787		866
788	/* we only need this for !monotonic clockor timers, but as we basically	867	/* we only need this for !monotonic clockor timers, but as we basically
789	always have timers, we just calculate it always */	868	always have timers, we just calculate it always */
790	#if EV_USE_MONOTONIC	869	#if EV_USE_MONOTONIC
791	if (expect_true (have_monotonic))	870	if (expect_true (have_monotonic))
792	time_update_monotonic ();	871	time_update_monotonic (EV_A);
793	else	872	else
794	#endif	873	#endif
795	{	874	{
796	ev_now = ev_time ();	875	rt_now = ev_time ();
797	now = ev_now;	876	mn_now = rt_now;
798	}	877	}
799		878
800	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	879	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
801	block = 0.;	880	block = 0.;
802	else	881	else
803	{	882	{
804	block = MAX_BLOCKTIME;	883	block = MAX_BLOCKTIME;
805		884
806	if (timercnt)	885	if (timercnt)
807	{	886	{
808	ev_tstamp to = timers [0]->at - now + method_fudge;	887	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
809	if (block > to) block = to;	888	if (block > to) block = to;
810	}	889	}
811		890
812	if (periodiccnt)	891	if (periodiccnt)
813	{	892	{
814	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	893	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
815	if (block > to) block = to;	894	if (block > to) block = to;
816	}	895	}
817		896
818	if (block < 0.) block = 0.;	897	if (block < 0.) block = 0.;
819	}	898	}
820		899
821	method_poll (block);	900	method_poll (EV_A_ block);
822		901
823	/* update ev_now, do magic */	902	/* update rt_now, do magic */
824	time_update ();	903	time_update (EV_A);
825		904
826	/* queue pending timers and reschedule them */	905	/* queue pending timers and reschedule them */
827	timers_reify (); /* relative timers called last */	906	timers_reify (EV_A); /* relative timers called last */
828	periodics_reify (); /* absolute timers called first */	907	periodics_reify (EV_A); /* absolute timers called first */
829		908
830	/* queue idle watchers unless io or timers are pending */	909	/* queue idle watchers unless io or timers are pending */
831	if (!pendingcnt)	910	if (!pendingcnt)
832	queue_events ((W *)idles, idlecnt, EV_IDLE);	911	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
833		912
834	/* queue check watchers, to be executed first */	913	/* queue check watchers, to be executed first */
835	if (checkcnt)	914	if (checkcnt)
836	queue_events ((W *)checks, checkcnt, EV_CHECK);	915	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
837		916
838	call_pending ();	917	call_pending (EV_A);
839	}	918	}
840	while (!ev_loop_done);	919	while (activecnt && !loop_done);
841		920
842	if (ev_loop_done != 2)	921	if (loop_done != 2)
843	ev_loop_done = 0;	922	loop_done = 0;
		923	}
		924
		925	void
		926	ev_unloop (EV_P_ int how)
		927	{
		928	loop_done = how;
844	}	929	}
845		930
846	/*****************************************************************************/	931	/*****************************************************************************/
847		932
848	static void	933	inline void
849	wlist_add (WL *head, WL elem)	934	wlist_add (WL *head, WL elem)
850	{	935	{
851	elem->next = *head;	936	elem->next = *head;
852	*head = elem;	937	*head = elem;
853	}	938	}
854		939
855	static void	940	inline void
856	wlist_del (WL *head, WL elem)	941	wlist_del (WL *head, WL elem)
857	{	942	{
858	while (*head)	943	while (*head)
859	{	944	{
860	if (*head == elem)	945	if (*head == elem)
…		…
865		950
866	head = &(*head)->next;	951	head = &(*head)->next;
867	}	952	}
868	}	953	}
869		954
870	static void	955	inline void
871	ev_clear_pending (W w)	956	ev_clear_pending (EV_P_ W w)
872	{	957	{
873	if (w->pending)	958	if (w->pending)
874	{	959	{
875	pendings [ABSPRI (w)][w->pending - 1].w = 0;	960	pendings [ABSPRI (w)][w->pending - 1].w = 0;
876	w->pending = 0;	961	w->pending = 0;
877	}	962	}
878	}	963	}
879		964
880	static void	965	inline void
881	ev_start (W w, int active)	966	ev_start (EV_P_ W w, int active)
882	{	967	{
883	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	968	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
884	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	969	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
885		970
886	w->active = active;	971	w->active = active;
		972	ev_ref (EV_A);
887	}	973	}
888		974
889	static void	975	inline void
890	ev_stop (W w)	976	ev_stop (EV_P_ W w)
891	{	977	{
		978	ev_unref (EV_A);
892	w->active = 0;	979	w->active = 0;
893	}	980	}
894		981
895	/*****************************************************************************/	982	/*****************************************************************************/
896		983
897	void	984	void
898	ev_io_start (struct ev_io *w)	985	ev_io_start (EV_P_ struct ev_io *w)
899	{	986	{
900	int fd = w->fd;	987	int fd = w->fd;
901		988
902	if (ev_is_active (w))	989	if (ev_is_active (w))
903	return;	990	return;
904		991
905	assert (("ev_io_start called with negative fd", fd >= 0));	992	assert (("ev_io_start called with negative fd", fd >= 0));
906		993
907	ev_start ((W)w, 1);	994	ev_start (EV_A_ (W)w, 1);
908	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	995	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
909	wlist_add ((WL *)&anfds[fd].head, (WL)w);	996	wlist_add ((WL *)&anfds[fd].head, (WL)w);
910		997
911	fd_change (fd);	998	fd_change (EV_A_ fd);
912	}	999	}
913		1000
914	void	1001	void
915	ev_io_stop (struct ev_io *w)	1002	ev_io_stop (EV_P_ struct ev_io *w)
916	{	1003	{
917	ev_clear_pending ((W)w);	1004	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1005	if (!ev_is_active (w))
919	return;	1006	return;
920		1007
921	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1008	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
922	ev_stop ((W)w);	1009	ev_stop (EV_A_ (W)w);
923		1010
924	fd_change (w->fd);	1011	fd_change (EV_A_ w->fd);
925	}	1012	}
926		1013
927	void	1014	void
928	ev_timer_start (struct ev_timer *w)	1015	ev_timer_start (EV_P_ struct ev_timer *w)
929	{	1016	{
930	if (ev_is_active (w))	1017	if (ev_is_active (w))
931	return;	1018	return;
932		1019
933	w->at += now;	1020	w->at += mn_now;
934		1021
935	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1022	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
936		1023
937	ev_start ((W)w, ++timercnt);	1024	ev_start (EV_A_ (W)w, ++timercnt);
938	array_needsize (timers, timermax, timercnt, );	1025	array_needsize (timers, timermax, timercnt, );
939	timers [timercnt - 1] = w;	1026	timers [timercnt - 1] = w;
940	upheap ((WT *)timers, timercnt - 1);	1027	upheap ((WT *)timers, timercnt - 1);
941	}	1028	}
942		1029
943	void	1030	void
944	ev_timer_stop (struct ev_timer *w)	1031	ev_timer_stop (EV_P_ struct ev_timer *w)
945	{	1032	{
946	ev_clear_pending ((W)w);	1033	ev_clear_pending (EV_A_ (W)w);
947	if (!ev_is_active (w))	1034	if (!ev_is_active (w))
948	return;	1035	return;
949		1036
950	if (w->active < timercnt--)	1037	if (w->active < timercnt--)
951	{	1038	{
…		…
953	downheap ((WT *)timers, timercnt, w->active - 1);	1040	downheap ((WT *)timers, timercnt, w->active - 1);
954	}	1041	}
955		1042
956	w->at = w->repeat;	1043	w->at = w->repeat;
957		1044
958	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
959	}	1046	}
960		1047
961	void	1048	void
962	ev_timer_again (struct ev_timer *w)	1049	ev_timer_again (EV_P_ struct ev_timer *w)
963	{	1050	{
964	if (ev_is_active (w))	1051	if (ev_is_active (w))
965	{	1052	{
966	if (w->repeat)	1053	if (w->repeat)
967	{	1054	{
968	w->at = now + w->repeat;	1055	w->at = mn_now + w->repeat;
969	downheap ((WT *)timers, timercnt, w->active - 1);	1056	downheap ((WT *)timers, timercnt, w->active - 1);
970	}	1057	}
971	else	1058	else
972	ev_timer_stop (w);	1059	ev_timer_stop (EV_A_ w);
973	}	1060	}
974	else if (w->repeat)	1061	else if (w->repeat)
975	ev_timer_start (w);	1062	ev_timer_start (EV_A_ w);
976	}	1063	}
977		1064
978	void	1065	void
979	ev_periodic_start (struct ev_periodic *w)	1066	ev_periodic_start (EV_P_ struct ev_periodic *w)
980	{	1067	{
981	if (ev_is_active (w))	1068	if (ev_is_active (w))
982	return;	1069	return;
983		1070
984	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1071	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
985		1072
986	/* this formula differs from the one in periodic_reify because we do not always round up */	1073	/* this formula differs from the one in periodic_reify because we do not always round up */
987	if (w->interval)	1074	if (w->interval)
988	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1075	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
989		1076
990	ev_start ((W)w, ++periodiccnt);	1077	ev_start (EV_A_ (W)w, ++periodiccnt);
991	array_needsize (periodics, periodicmax, periodiccnt, );	1078	array_needsize (periodics, periodicmax, periodiccnt, );
992	periodics [periodiccnt - 1] = w;	1079	periodics [periodiccnt - 1] = w;
993	upheap ((WT *)periodics, periodiccnt - 1);	1080	upheap ((WT *)periodics, periodiccnt - 1);
994	}	1081	}
995		1082
996	void	1083	void
997	ev_periodic_stop (struct ev_periodic *w)	1084	ev_periodic_stop (EV_P_ struct ev_periodic *w)
998	{	1085	{
999	ev_clear_pending ((W)w);	1086	ev_clear_pending (EV_A_ (W)w);
1000	if (!ev_is_active (w))	1087	if (!ev_is_active (w))
1001	return;	1088	return;
1002		1089
1003	if (w->active < periodiccnt--)	1090	if (w->active < periodiccnt--)
1004	{	1091	{
1005	periodics [w->active - 1] = periodics [periodiccnt];	1092	periodics [w->active - 1] = periodics [periodiccnt];
1006	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1093	downheap ((WT *)periodics, periodiccnt, w->active - 1);
1007	}	1094	}
1008		1095
1009	ev_stop ((W)w);	1096	ev_stop (EV_A_ (W)w);
1010	}	1097	}
1011		1098
		1099	#ifndef SA_RESTART
		1100	# define SA_RESTART 0
		1101	#endif
		1102
1012	void	1103	void
1013	ev_signal_start (struct ev_signal *w)	1104	ev_signal_start (EV_P_ struct ev_signal *w)
1014	{	1105	{
1015	if (ev_is_active (w))	1106	if (ev_is_active (w))
1016	return;	1107	return;
1017		1108
1018	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1109	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1019		1110
1020	ev_start ((W)w, 1);	1111	ev_start (EV_A_ (W)w, 1);
1021	array_needsize (signals, signalmax, w->signum, signals_init);	1112	array_needsize (signals, signalmax, w->signum, signals_init);
1022	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1113	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1023		1114
1024	if (!w->next)	1115	if (!w->next)
1025	{	1116	{
1026	struct sigaction sa;	1117	struct sigaction sa;
1027	sa.sa_handler = sighandler;	1118	sa.sa_handler = sighandler;
1028	sigfillset (&sa.sa_mask);	1119	sigfillset (&sa.sa_mask);
1029	sa.sa_flags = 0;	1120	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1030	sigaction (w->signum, &sa, 0);	1121	sigaction (w->signum, &sa, 0);
1031	}	1122	}
1032	}	1123	}
1033		1124
1034	void	1125	void
1035	ev_signal_stop (struct ev_signal *w)	1126	ev_signal_stop (EV_P_ struct ev_signal *w)
1036	{	1127	{
1037	ev_clear_pending ((W)w);	1128	ev_clear_pending (EV_A_ (W)w);
1038	if (!ev_is_active (w))	1129	if (!ev_is_active (w))
1039	return;	1130	return;
1040		1131
1041	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1132	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1042	ev_stop ((W)w);	1133	ev_stop (EV_A_ (W)w);
1043		1134
1044	if (!signals [w->signum - 1].head)	1135	if (!signals [w->signum - 1].head)
1045	signal (w->signum, SIG_DFL);	1136	signal (w->signum, SIG_DFL);
1046	}	1137	}
1047		1138
1048	void	1139	void
1049	ev_idle_start (struct ev_idle *w)	1140	ev_idle_start (EV_P_ struct ev_idle *w)
1050	{	1141	{
1051	if (ev_is_active (w))	1142	if (ev_is_active (w))
1052	return;	1143	return;
1053		1144
1054	ev_start ((W)w, ++idlecnt);	1145	ev_start (EV_A_ (W)w, ++idlecnt);
1055	array_needsize (idles, idlemax, idlecnt, );	1146	array_needsize (idles, idlemax, idlecnt, );
1056	idles [idlecnt - 1] = w;	1147	idles [idlecnt - 1] = w;
1057	}	1148	}
1058		1149
1059	void	1150	void
1060	ev_idle_stop (struct ev_idle *w)	1151	ev_idle_stop (EV_P_ struct ev_idle *w)
1061	{	1152	{
1062	ev_clear_pending ((W)w);	1153	ev_clear_pending (EV_A_ (W)w);
1063	if (ev_is_active (w))	1154	if (ev_is_active (w))
1064	return;	1155	return;
1065		1156
1066	idles [w->active - 1] = idles [--idlecnt];	1157	idles [w->active - 1] = idles [--idlecnt];
1067	ev_stop ((W)w);	1158	ev_stop (EV_A_ (W)w);
1068	}	1159	}
1069		1160
1070	void	1161	void
1071	ev_prepare_start (struct ev_prepare *w)	1162	ev_prepare_start (EV_P_ struct ev_prepare *w)
1072	{	1163	{
1073	if (ev_is_active (w))	1164	if (ev_is_active (w))
1074	return;	1165	return;
1075		1166
1076	ev_start ((W)w, ++preparecnt);	1167	ev_start (EV_A_ (W)w, ++preparecnt);
1077	array_needsize (prepares, preparemax, preparecnt, );	1168	array_needsize (prepares, preparemax, preparecnt, );
1078	prepares [preparecnt - 1] = w;	1169	prepares [preparecnt - 1] = w;
1079	}	1170	}
1080		1171
1081	void	1172	void
1082	ev_prepare_stop (struct ev_prepare *w)	1173	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1083	{	1174	{
1084	ev_clear_pending ((W)w);	1175	ev_clear_pending (EV_A_ (W)w);
1085	if (ev_is_active (w))	1176	if (ev_is_active (w))
1086	return;	1177	return;
1087		1178
1088	prepares [w->active - 1] = prepares [--preparecnt];	1179	prepares [w->active - 1] = prepares [--preparecnt];
1089	ev_stop ((W)w);	1180	ev_stop (EV_A_ (W)w);
1090	}	1181	}
1091		1182
1092	void	1183	void
1093	ev_check_start (struct ev_check *w)	1184	ev_check_start (EV_P_ struct ev_check *w)
1094	{	1185	{
1095	if (ev_is_active (w))	1186	if (ev_is_active (w))
1096	return;	1187	return;
1097		1188
1098	ev_start ((W)w, ++checkcnt);	1189	ev_start (EV_A_ (W)w, ++checkcnt);
1099	array_needsize (checks, checkmax, checkcnt, );	1190	array_needsize (checks, checkmax, checkcnt, );
1100	checks [checkcnt - 1] = w;	1191	checks [checkcnt - 1] = w;
1101	}	1192	}
1102		1193
1103	void	1194	void
1104	ev_check_stop (struct ev_check *w)	1195	ev_check_stop (EV_P_ struct ev_check *w)
1105	{	1196	{
1106	ev_clear_pending ((W)w);	1197	ev_clear_pending (EV_A_ (W)w);
1107	if (ev_is_active (w))	1198	if (ev_is_active (w))
1108	return;	1199	return;
1109		1200
1110	checks [w->active - 1] = checks [--checkcnt];	1201	checks [w->active - 1] = checks [--checkcnt];
1111	ev_stop ((W)w);	1202	ev_stop (EV_A_ (W)w);
1112	}	1203	}
1113		1204
1114	void	1205	void
1115	ev_child_start (struct ev_child *w)	1206	ev_child_start (EV_P_ struct ev_child *w)
1116	{	1207	{
1117	if (ev_is_active (w))	1208	if (ev_is_active (w))
1118	return;	1209	return;
1119		1210
1120	ev_start ((W)w, 1);	1211	ev_start (EV_A_ (W)w, 1);
1121	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1212	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	}	1213	}
1123		1214
1124	void	1215	void
1125	ev_child_stop (struct ev_child *w)	1216	ev_child_stop (EV_P_ struct ev_child *w)
1126	{	1217	{
1127	ev_clear_pending ((W)w);	1218	ev_clear_pending (EV_A_ (W)w);
1128	if (ev_is_active (w))	1219	if (ev_is_active (w))
1129	return;	1220	return;
1130		1221
1131	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1222	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1132	ev_stop ((W)w);	1223	ev_stop (EV_A_ (W)w);
1133	}	1224	}
1134		1225
1135	/*****************************************************************************/	1226	/*****************************************************************************/
1136		1227
1137	struct ev_once	1228	struct ev_once
…		…
1141	void (cb)(int revents, void arg);	1232	void (cb)(int revents, void arg);
1142	void *arg;	1233	void *arg;
1143	};	1234	};
1144		1235
1145	static void	1236	static void
1146	once_cb (struct ev_once *once, int revents)	1237	once_cb (EV_P_ struct ev_once *once, int revents)
1147	{	1238	{
1148	void (cb)(int revents, void arg) = once->cb;	1239	void (cb)(int revents, void arg) = once->cb;
1149	void *arg = once->arg;	1240	void *arg = once->arg;
1150		1241
1151	ev_io_stop (&once->io);	1242	ev_io_stop (EV_A_ &once->io);
1152	ev_timer_stop (&once->to);	1243	ev_timer_stop (EV_A_ &once->to);
1153	free (once);	1244	free (once);
1154		1245
1155	cb (revents, arg);	1246	cb (revents, arg);
1156	}	1247	}
1157		1248
1158	static void	1249	static void
1159	once_cb_io (struct ev_io *w, int revents)	1250	once_cb_io (EV_P_ struct ev_io *w, int revents)
1160	{	1251	{
1161	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1252	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1162	}	1253	}
1163		1254
1164	static void	1255	static void
1165	once_cb_to (struct ev_timer *w, int revents)	1256	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1166	{	1257	{
1167	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1258	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1168	}	1259	}
1169		1260
1170	void	1261	void
1171	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1262	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1172	{	1263	{
1173	struct ev_once *once = malloc (sizeof (struct ev_once));	1264	struct ev_once *once = malloc (sizeof (struct ev_once));
1174		1265
1175	if (!once)	1266	if (!once)
1176	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1267	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1181		1272
1182	ev_watcher_init (&once->io, once_cb_io);	1273	ev_watcher_init (&once->io, once_cb_io);
1183	if (fd >= 0)	1274	if (fd >= 0)
1184	{	1275	{
1185	ev_io_set (&once->io, fd, events);	1276	ev_io_set (&once->io, fd, events);
1186	ev_io_start (&once->io);	1277	ev_io_start (EV_A_ &once->io);
1187	}	1278	}
1188		1279
1189	ev_watcher_init (&once->to, once_cb_to);	1280	ev_watcher_init (&once->to, once_cb_to);
1190	if (timeout >= 0.)	1281	if (timeout >= 0.)
1191	{	1282	{
1192	ev_timer_set (&once->to, timeout, 0.);	1283	ev_timer_set (&once->to, timeout, 0.);
1193	ev_timer_start (&once->to);	1284	ev_timer_start (EV_A_ &once->to);
1194	}	1285	}
1195	}	1286	}
1196	}	1287	}
1197		1288
1198	/*****************************************************************************/	1289	/*****************************************************************************/

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs. Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC