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

Comparing libev/ev.c (file contents):
Revision 1.46 by root, Sat Nov 3 09:20:12 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->rpid = pid;	541
491	w->rstatus = status;	542	child_reap (EV_A_ sw, pid, pid, status);
492	event ((W)w, EV_CHILD);	543	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
493	}	544	}
494	}	545	}
495		546
496	#endif	547	#endif
497		548
498	/*****************************************************************************/	549	/*****************************************************************************/
…		…
501	# include "ev_kqueue.c"	552	# include "ev_kqueue.c"
502	#endif	553	#endif
503	#if EV_USE_EPOLL	554	#if EV_USE_EPOLL
504	# include "ev_epoll.c"	555	# include "ev_epoll.c"
505	#endif	556	#endif
506	#if EV_USE_POLL	557	#if EV_USEV_POLL
507	# include "ev_poll.c"	558	# include "ev_poll.c"
508	#endif	559	#endif
509	#if EV_USE_SELECT	560	#if EV_USE_SELECT
510	# include "ev_select.c"	561	# include "ev_select.c"
511	#endif	562	#endif
…		…
520	ev_version_minor (void)	571	ev_version_minor (void)
521	{	572	{
522	return EV_VERSION_MINOR;	573	return EV_VERSION_MINOR;
523	}	574	}
524		575
525	/* 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 */
526	static int	577	static int
527	enable_secure ()	578	enable_secure (void)
528	{	579	{
		580	#ifdef WIN32
		581	return 0;
		582	#else
529	return getuid () != geteuid ()	583	return getuid () != geteuid ()
530	\|\| getgid () != getegid ();	584	\|\| getgid () != getegid ();
		585	#endif
531	}	586	}
532		587
		588	int
		589	ev_method (EV_P)
		590	{
		591	return method;
		592	}
		593
		594	int
533	int ev_init (int methods)	595	ev_init (EV_P_ int methods)
534	{	596	{
535	if (!ev_method)	597	if (!method)
536	{	598	{
537	#if EV_USE_MONOTONIC	599	#if EV_USE_MONOTONIC
538	{	600	{
539	struct timespec ts;	601	struct timespec ts;
540	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	602	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
541	have_monotonic = 1;	603	have_monotonic = 1;
542	}	604	}
543	#endif	605	#endif
544		606
545	ev_now = ev_time ();	607	rt_now = ev_time ();
546	now = get_clock ();	608	mn_now = get_clock ();
547	now_floor = now;	609	now_floor = mn_now;
548	diff = ev_now - now;	610	diff = rt_now - mn_now;
549		611
550	if (pipe (sigpipe))	612	if (pipe (sigpipe))
551	return 0;	613	return 0;
552		614
553	if (methods == EVMETHOD_AUTO)	615	if (methods == EVMETHOD_AUTO)
554	if (!enable_secure () && getenv ("LIBEV_METHODS"))	616	if (!enable_secure () && getenv ("LIBmethodS"))
555	methods = atoi (getenv ("LIBEV_METHODS"));	617	methods = atoi (getenv ("LIBmethodS"));
556	else	618	else
557	methods = EVMETHOD_ANY;	619	methods = EVMETHOD_ANY;
558		620
559	ev_method = 0;	621	method = 0;
560	#if EV_USE_KQUEUE	622	#if EV_USE_KQUEUE
561	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	623	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
562	#endif	624	#endif
563	#if EV_USE_EPOLL	625	#if EV_USE_EPOLL
564	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	626	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
565	#endif	627	#endif
566	#if EV_USE_POLL	628	#if EV_USEV_POLL
567	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	629	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
568	#endif	630	#endif
569	#if EV_USE_SELECT	631	#if EV_USE_SELECT
570	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	632	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
571	#endif	633	#endif
572		634
573	if (ev_method)	635	if (method)
574	{	636	{
575	ev_watcher_init (&sigev, sigcb);	637	ev_watcher_init (&sigev, sigcb);
		638	ev_set_priority (&sigev, EV_MAXPRI);
576	siginit ();	639	siginit (EV_A);
577		640
578	#ifndef WIN32	641	#ifndef WIN32
579	ev_signal_init (&childev, childcb, SIGCHLD);	642	ev_signal_init (&childev, childcb, SIGCHLD);
		643	ev_set_priority (&childev, EV_MAXPRI);
580	ev_signal_start (&childev);	644	ev_signal_start (EV_A_ &childev);
		645	ev_unref (EV_A); /* child watcher should not keep loop alive */
581	#endif	646	#endif
582	}	647	}
583	}	648	}
584		649
585	return ev_method;	650	return method;
586	}	651	}
587		652
588	/*****************************************************************************/	653	/*****************************************************************************/
589		654
590	void	655	void
…		…
601		666
602	void	667	void
603	ev_fork_child (void)	668	ev_fork_child (void)
604	{	669	{
605	#if EV_USE_EPOLL	670	#if EV_USE_EPOLL
606	if (ev_method == EVMETHOD_EPOLL)	671	if (method == EVMETHOD_EPOLL)
607	epoll_postfork_child ();	672	epoll_postfork_child ();
608	#endif	673	#endif
609		674
610	ev_io_stop (&sigev);	675	ev_io_stop (&sigev);
611	close (sigpipe [0]);	676	close (sigpipe [0]);
…		…
615	}	680	}
616		681
617	/*****************************************************************************/	682	/*****************************************************************************/
618		683
619	static void	684	static void
620	call_pending (void)	685	call_pending (EV_P)
621	{	686	{
622	int pri;	687	int pri;
623		688
624	for (pri = NUMPRI; pri--; )	689	for (pri = NUMPRI; pri--; )
625	while (pendingcnt [pri])	690	while (pendingcnt [pri])
…		…
627	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	692	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
628		693
629	if (p->w)	694	if (p->w)
630	{	695	{
631	p->w->pending = 0;	696	p->w->pending = 0;
632	p->w->cb (p->w, p->events);	697	p->w->cb (EV_A_ p->w, p->events);
633	}	698	}
634	}	699	}
635	}	700	}
636		701
637	static void	702	static void
638	timers_reify (void)	703	timers_reify (EV_P)
639	{	704	{
640	while (timercnt && timers [0]->at <= now)	705	while (timercnt && timers [0]->at <= mn_now)
641	{	706	{
642	struct ev_timer *w = timers [0];	707	struct ev_timer *w = timers [0];
643		708
644	/* first reschedule or stop timer */	709	/* first reschedule or stop timer */
645	if (w->repeat)	710	if (w->repeat)
646	{	711	{
647	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.));
648	w->at = now + w->repeat;	713	w->at = mn_now + w->repeat;
649	downheap ((WT *)timers, timercnt, 0);	714	downheap ((WT *)timers, timercnt, 0);
650	}	715	}
651	else	716	else
652	ev_timer_stop (w); /* nonrepeating: stop timer */	717	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
653		718
654	event ((W)w, EV_TIMEOUT);	719	event ((W)w, EV_TIMEOUT);
655	}	720	}
656	}	721	}
657		722
658	static void	723	static void
659	periodics_reify (void)	724	periodics_reify (EV_P)
660	{	725	{
661	while (periodiccnt && periodics [0]->at <= ev_now)	726	while (periodiccnt && periodics [0]->at <= rt_now)
662	{	727	{
663	struct ev_periodic *w = periodics [0];	728	struct ev_periodic *w = periodics [0];
664		729
665	/* first reschedule or stop timer */	730	/* first reschedule or stop timer */
666	if (w->interval)	731	if (w->interval)
667	{	732	{
668	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;
669	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));
670	downheap ((WT *)periodics, periodiccnt, 0);	735	downheap ((WT *)periodics, periodiccnt, 0);
671	}	736	}
672	else	737	else
673	ev_periodic_stop (w); /* nonrepeating: stop timer */	738	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
674		739
675	event ((W)w, EV_PERIODIC);	740	event (EV_A_ (W)w, EV_PERIODIC);
676	}	741	}
677	}	742	}
678		743
679	static void	744	static void
680	periodics_reschedule (ev_tstamp diff)	745	periodics_reschedule (EV_P_ ev_tstamp diff)
681	{	746	{
682	int i;	747	int i;
683		748
684	/* adjust periodics after time jump */	749	/* adjust periodics after time jump */
685	for (i = 0; i < periodiccnt; ++i)	750	for (i = 0; i < periodiccnt; ++i)
686	{	751	{
687	struct ev_periodic *w = periodics [i];	752	struct ev_periodic *w = periodics [i];
688		753
689	if (w->interval)	754	if (w->interval)
690	{	755	{
691	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;
692		757
693	if (fabs (diff) >= 1e-4)	758	if (fabs (diff) >= 1e-4)
694	{	759	{
695	ev_periodic_stop (w);	760	ev_periodic_stop (EV_A_ w);
696	ev_periodic_start (w);	761	ev_periodic_start (EV_A_ w);
697		762
698	i = 0; /* restart loop, inefficient, but time jumps should be rare */	763	i = 0; /* restart loop, inefficient, but time jumps should be rare */
699	}	764	}
700	}	765	}
701	}	766	}
702	}	767	}
703		768
704	static int	769	inline int
705	time_update_monotonic (void)	770	time_update_monotonic (EV_P)
706	{	771	{
707	now = get_clock ();	772	mn_now = get_clock ();
708		773
709	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	774	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
710	{	775	{
711	ev_now = now + diff;	776	rt_now = mn_now + diff;
712	return 0;	777	return 0;
713	}	778	}
714	else	779	else
715	{	780	{
716	now_floor = now;	781	now_floor = mn_now;
717	ev_now = ev_time ();	782	rt_now = ev_time ();
718	return 1;	783	return 1;
719	}	784	}
720	}	785	}
721		786
722	static void	787	static void
723	time_update (void)	788	time_update (EV_P)
724	{	789	{
725	int i;	790	int i;
726		791
727	#if EV_USE_MONOTONIC	792	#if EV_USE_MONOTONIC
728	if (expect_true (have_monotonic))	793	if (expect_true (have_monotonic))
729	{	794	{
730	if (time_update_monotonic ())	795	if (time_update_monotonic (EV_A))
731	{	796	{
732	ev_tstamp odiff = diff;	797	ev_tstamp odiff = diff;
733		798
734	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 */
735	{	800	{
736	diff = ev_now - now;	801	diff = rt_now - mn_now;
737		802
738	if (fabs (odiff - diff) < MIN_TIMEJUMP)	803	if (fabs (odiff - diff) < MIN_TIMEJUMP)
739	return; /* all is well */	804	return; /* all is well */
740		805
741	ev_now = ev_time ();	806	rt_now = ev_time ();
742	now = get_clock ();	807	mn_now = get_clock ();
743	now_floor = now;	808	now_floor = mn_now;
744	}	809	}
745		810
746	periodics_reschedule (diff - odiff);	811	periodics_reschedule (EV_A_ diff - odiff);
747	/* no timer adjustment, as the monotonic clock doesn't jump */	812	/* no timer adjustment, as the monotonic clock doesn't jump */
748	}	813	}
749	}	814	}
750	else	815	else
751	#endif	816	#endif
752	{	817	{
753	ev_now = ev_time ();	818	rt_now = ev_time ();
754		819
755	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))
756	{	821	{
757	periodics_reschedule (ev_now - now);	822	periodics_reschedule (EV_A_ rt_now - mn_now);
758		823
759	/* 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 */
760	for (i = 0; i < timercnt; ++i)	825	for (i = 0; i < timercnt; ++i)
761	timers [i]->at += diff;	826	timers [i]->at += diff;
762	}	827	}
763		828
764	now = ev_now;	829	mn_now = rt_now;
765	}	830	}
766	}	831	}
767		832
768	int ev_loop_done;	833	void
		834	ev_ref (EV_P)
		835	{
		836	++activecnt;
		837	}
769		838
		839	void
		840	ev_unref (EV_P)
		841	{
		842	--activecnt;
		843	}
		844
		845	static int loop_done;
		846
		847	void
770	void ev_loop (int flags)	848	ev_loop (EV_P_ int flags)
771	{	849	{
772	double block;	850	double block;
773	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	851	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
774		852
775	do	853	do
776	{	854	{
777	/* queue check watchers (and execute them) */	855	/* queue check watchers (and execute them) */
778	if (expect_false (preparecnt))	856	if (expect_false (preparecnt))
779	{	857	{
780	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	858	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
781	call_pending ();	859	call_pending (EV_A);
782	}	860	}
783		861
784	/* update fd-related kernel structures */	862	/* update fd-related kernel structures */
785	fd_reify ();	863	fd_reify (EV_A);
786		864
787	/* calculate blocking time */	865	/* calculate blocking time */
788		866
789	/* 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
790	always have timers, we just calculate it always */	868	always have timers, we just calculate it always */
791	#if EV_USE_MONOTONIC	869	#if EV_USE_MONOTONIC
792	if (expect_true (have_monotonic))	870	if (expect_true (have_monotonic))
793	time_update_monotonic ();	871	time_update_monotonic (EV_A);
794	else	872	else
795	#endif	873	#endif
796	{	874	{
797	ev_now = ev_time ();	875	rt_now = ev_time ();
798	now = ev_now;	876	mn_now = rt_now;
799	}	877	}
800		878
801	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	879	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
802	block = 0.;	880	block = 0.;
803	else	881	else
804	{	882	{
805	block = MAX_BLOCKTIME;	883	block = MAX_BLOCKTIME;
806		884
807	if (timercnt)	885	if (timercnt)
808	{	886	{
809	ev_tstamp to = timers [0]->at - now + method_fudge;	887	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
810	if (block > to) block = to;	888	if (block > to) block = to;
811	}	889	}
812		890
813	if (periodiccnt)	891	if (periodiccnt)
814	{	892	{
815	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	893	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
816	if (block > to) block = to;	894	if (block > to) block = to;
817	}	895	}
818		896
819	if (block < 0.) block = 0.;	897	if (block < 0.) block = 0.;
820	}	898	}
821		899
822	method_poll (block);	900	method_poll (EV_A_ block);
823		901
824	/* update ev_now, do magic */	902	/* update rt_now, do magic */
825	time_update ();	903	time_update (EV_A);
826		904
827	/* queue pending timers and reschedule them */	905	/* queue pending timers and reschedule them */
828	timers_reify (); /* relative timers called last */	906	timers_reify (EV_A); /* relative timers called last */
829	periodics_reify (); /* absolute timers called first */	907	periodics_reify (EV_A); /* absolute timers called first */
830		908
831	/* queue idle watchers unless io or timers are pending */	909	/* queue idle watchers unless io or timers are pending */
832	if (!pendingcnt)	910	if (!pendingcnt)
833	queue_events ((W *)idles, idlecnt, EV_IDLE);	911	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
834		912
835	/* queue check watchers, to be executed first */	913	/* queue check watchers, to be executed first */
836	if (checkcnt)	914	if (checkcnt)
837	queue_events ((W *)checks, checkcnt, EV_CHECK);	915	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
838		916
839	call_pending ();	917	call_pending (EV_A);
840	}	918	}
841	while (!ev_loop_done);	919	while (activecnt && !loop_done);
842		920
843	if (ev_loop_done != 2)	921	if (loop_done != 2)
844	ev_loop_done = 0;	922	loop_done = 0;
		923	}
		924
		925	void
		926	ev_unloop (EV_P_ int how)
		927	{
		928	loop_done = how;
845	}	929	}
846		930
847	/*****************************************************************************/	931	/*****************************************************************************/
848		932
849	static void	933	inline void
850	wlist_add (WL *head, WL elem)	934	wlist_add (WL *head, WL elem)
851	{	935	{
852	elem->next = *head;	936	elem->next = *head;
853	*head = elem;	937	*head = elem;
854	}	938	}
855		939
856	static void	940	inline void
857	wlist_del (WL *head, WL elem)	941	wlist_del (WL *head, WL elem)
858	{	942	{
859	while (*head)	943	while (*head)
860	{	944	{
861	if (*head == elem)	945	if (*head == elem)
…		…
866		950
867	head = &(*head)->next;	951	head = &(*head)->next;
868	}	952	}
869	}	953	}
870		954
871	static void	955	inline void
872	ev_clear_pending (W w)	956	ev_clear_pending (EV_P_ W w)
873	{	957	{
874	if (w->pending)	958	if (w->pending)
875	{	959	{
876	pendings [ABSPRI (w)][w->pending - 1].w = 0;	960	pendings [ABSPRI (w)][w->pending - 1].w = 0;
877	w->pending = 0;	961	w->pending = 0;
878	}	962	}
879	}	963	}
880		964
881	static void	965	inline void
882	ev_start (W w, int active)	966	ev_start (EV_P_ W w, int active)
883	{	967	{
884	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	968	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
885	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	969	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
886		970
887	w->active = active;	971	w->active = active;
		972	ev_ref (EV_A);
888	}	973	}
889		974
890	static void	975	inline void
891	ev_stop (W w)	976	ev_stop (EV_P_ W w)
892	{	977	{
		978	ev_unref (EV_A);
893	w->active = 0;	979	w->active = 0;
894	}	980	}
895		981
896	/*****************************************************************************/	982	/*****************************************************************************/
897		983
898	void	984	void
899	ev_io_start (struct ev_io *w)	985	ev_io_start (EV_P_ struct ev_io *w)
900	{	986	{
901	int fd = w->fd;	987	int fd = w->fd;
902		988
903	if (ev_is_active (w))	989	if (ev_is_active (w))
904	return;	990	return;
905		991
906	assert (("ev_io_start called with negative fd", fd >= 0));	992	assert (("ev_io_start called with negative fd", fd >= 0));
907		993
908	ev_start ((W)w, 1);	994	ev_start (EV_A_ (W)w, 1);
909	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	995	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
910	wlist_add ((WL *)&anfds[fd].head, (WL)w);	996	wlist_add ((WL *)&anfds[fd].head, (WL)w);
911		997
912	fd_change (fd);	998	fd_change (EV_A_ fd);
913	}	999	}
914		1000
915	void	1001	void
916	ev_io_stop (struct ev_io *w)	1002	ev_io_stop (EV_P_ struct ev_io *w)
917	{	1003	{
918	ev_clear_pending ((W)w);	1004	ev_clear_pending (EV_A_ (W)w);
919	if (!ev_is_active (w))	1005	if (!ev_is_active (w))
920	return;	1006	return;
921		1007
922	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1008	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
923	ev_stop ((W)w);	1009	ev_stop (EV_A_ (W)w);
924		1010
925	fd_change (w->fd);	1011	fd_change (EV_A_ w->fd);
926	}	1012	}
927		1013
928	void	1014	void
929	ev_timer_start (struct ev_timer *w)	1015	ev_timer_start (EV_P_ struct ev_timer *w)
930	{	1016	{
931	if (ev_is_active (w))	1017	if (ev_is_active (w))
932	return;	1018	return;
933		1019
934	w->at += now;	1020	w->at += mn_now;
935		1021
936	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.));
937		1023
938	ev_start ((W)w, ++timercnt);	1024	ev_start (EV_A_ (W)w, ++timercnt);
939	array_needsize (timers, timermax, timercnt, );	1025	array_needsize (timers, timermax, timercnt, );
940	timers [timercnt - 1] = w;	1026	timers [timercnt - 1] = w;
941	upheap ((WT *)timers, timercnt - 1);	1027	upheap ((WT *)timers, timercnt - 1);
942	}	1028	}
943		1029
944	void	1030	void
945	ev_timer_stop (struct ev_timer *w)	1031	ev_timer_stop (EV_P_ struct ev_timer *w)
946	{	1032	{
947	ev_clear_pending ((W)w);	1033	ev_clear_pending (EV_A_ (W)w);
948	if (!ev_is_active (w))	1034	if (!ev_is_active (w))
949	return;	1035	return;
950		1036
951	if (w->active < timercnt--)	1037	if (w->active < timercnt--)
952	{	1038	{
…		…
954	downheap ((WT *)timers, timercnt, w->active - 1);	1040	downheap ((WT *)timers, timercnt, w->active - 1);
955	}	1041	}
956		1042
957	w->at = w->repeat;	1043	w->at = w->repeat;
958		1044
959	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
960	}	1046	}
961		1047
962	void	1048	void
963	ev_timer_again (struct ev_timer *w)	1049	ev_timer_again (EV_P_ struct ev_timer *w)
964	{	1050	{
965	if (ev_is_active (w))	1051	if (ev_is_active (w))
966	{	1052	{
967	if (w->repeat)	1053	if (w->repeat)
968	{	1054	{
969	w->at = now + w->repeat;	1055	w->at = mn_now + w->repeat;
970	downheap ((WT *)timers, timercnt, w->active - 1);	1056	downheap ((WT *)timers, timercnt, w->active - 1);
971	}	1057	}
972	else	1058	else
973	ev_timer_stop (w);	1059	ev_timer_stop (EV_A_ w);
974	}	1060	}
975	else if (w->repeat)	1061	else if (w->repeat)
976	ev_timer_start (w);	1062	ev_timer_start (EV_A_ w);
977	}	1063	}
978		1064
979	void	1065	void
980	ev_periodic_start (struct ev_periodic *w)	1066	ev_periodic_start (EV_P_ struct ev_periodic *w)
981	{	1067	{
982	if (ev_is_active (w))	1068	if (ev_is_active (w))
983	return;	1069	return;
984		1070
985	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.));
986		1072
987	/* 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 */
988	if (w->interval)	1074	if (w->interval)
989	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1075	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
990		1076
991	ev_start ((W)w, ++periodiccnt);	1077	ev_start (EV_A_ (W)w, ++periodiccnt);
992	array_needsize (periodics, periodicmax, periodiccnt, );	1078	array_needsize (periodics, periodicmax, periodiccnt, );
993	periodics [periodiccnt - 1] = w;	1079	periodics [periodiccnt - 1] = w;
994	upheap ((WT *)periodics, periodiccnt - 1);	1080	upheap ((WT *)periodics, periodiccnt - 1);
995	}	1081	}
996		1082
997	void	1083	void
998	ev_periodic_stop (struct ev_periodic *w)	1084	ev_periodic_stop (EV_P_ struct ev_periodic *w)
999	{	1085	{
1000	ev_clear_pending ((W)w);	1086	ev_clear_pending (EV_A_ (W)w);
1001	if (!ev_is_active (w))	1087	if (!ev_is_active (w))
1002	return;	1088	return;
1003		1089
1004	if (w->active < periodiccnt--)	1090	if (w->active < periodiccnt--)
1005	{	1091	{
1006	periodics [w->active - 1] = periodics [periodiccnt];	1092	periodics [w->active - 1] = periodics [periodiccnt];
1007	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1093	downheap ((WT *)periodics, periodiccnt, w->active - 1);
1008	}	1094	}
1009		1095
1010	ev_stop ((W)w);	1096	ev_stop (EV_A_ (W)w);
1011	}	1097	}
1012		1098
		1099	#ifndef SA_RESTART
		1100	# define SA_RESTART 0
		1101	#endif
		1102
1013	void	1103	void
1014	ev_signal_start (struct ev_signal *w)	1104	ev_signal_start (EV_P_ struct ev_signal *w)
1015	{	1105	{
1016	if (ev_is_active (w))	1106	if (ev_is_active (w))
1017	return;	1107	return;
1018		1108
1019	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));
1020		1110
1021	ev_start ((W)w, 1);	1111	ev_start (EV_A_ (W)w, 1);
1022	array_needsize (signals, signalmax, w->signum, signals_init);	1112	array_needsize (signals, signalmax, w->signum, signals_init);
1023	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1113	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1024		1114
1025	if (!w->next)	1115	if (!w->next)
1026	{	1116	{
1027	struct sigaction sa;	1117	struct sigaction sa;
1028	sa.sa_handler = sighandler;	1118	sa.sa_handler = sighandler;
1029	sigfillset (&sa.sa_mask);	1119	sigfillset (&sa.sa_mask);
1030	sa.sa_flags = 0;	1120	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1031	sigaction (w->signum, &sa, 0);	1121	sigaction (w->signum, &sa, 0);
1032	}	1122	}
1033	}	1123	}
1034		1124
1035	void	1125	void
1036	ev_signal_stop (struct ev_signal *w)	1126	ev_signal_stop (EV_P_ struct ev_signal *w)
1037	{	1127	{
1038	ev_clear_pending ((W)w);	1128	ev_clear_pending (EV_A_ (W)w);
1039	if (!ev_is_active (w))	1129	if (!ev_is_active (w))
1040	return;	1130	return;
1041		1131
1042	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1132	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1043	ev_stop ((W)w);	1133	ev_stop (EV_A_ (W)w);
1044		1134
1045	if (!signals [w->signum - 1].head)	1135	if (!signals [w->signum - 1].head)
1046	signal (w->signum, SIG_DFL);	1136	signal (w->signum, SIG_DFL);
1047	}	1137	}
1048		1138
1049	void	1139	void
1050	ev_idle_start (struct ev_idle *w)	1140	ev_idle_start (EV_P_ struct ev_idle *w)
1051	{	1141	{
1052	if (ev_is_active (w))	1142	if (ev_is_active (w))
1053	return;	1143	return;
1054		1144
1055	ev_start ((W)w, ++idlecnt);	1145	ev_start (EV_A_ (W)w, ++idlecnt);
1056	array_needsize (idles, idlemax, idlecnt, );	1146	array_needsize (idles, idlemax, idlecnt, );
1057	idles [idlecnt - 1] = w;	1147	idles [idlecnt - 1] = w;
1058	}	1148	}
1059		1149
1060	void	1150	void
1061	ev_idle_stop (struct ev_idle *w)	1151	ev_idle_stop (EV_P_ struct ev_idle *w)
1062	{	1152	{
1063	ev_clear_pending ((W)w);	1153	ev_clear_pending (EV_A_ (W)w);
1064	if (ev_is_active (w))	1154	if (ev_is_active (w))
1065	return;	1155	return;
1066		1156
1067	idles [w->active - 1] = idles [--idlecnt];	1157	idles [w->active - 1] = idles [--idlecnt];
1068	ev_stop ((W)w);	1158	ev_stop (EV_A_ (W)w);
1069	}	1159	}
1070		1160
1071	void	1161	void
1072	ev_prepare_start (struct ev_prepare *w)	1162	ev_prepare_start (EV_P_ struct ev_prepare *w)
1073	{	1163	{
1074	if (ev_is_active (w))	1164	if (ev_is_active (w))
1075	return;	1165	return;
1076		1166
1077	ev_start ((W)w, ++preparecnt);	1167	ev_start (EV_A_ (W)w, ++preparecnt);
1078	array_needsize (prepares, preparemax, preparecnt, );	1168	array_needsize (prepares, preparemax, preparecnt, );
1079	prepares [preparecnt - 1] = w;	1169	prepares [preparecnt - 1] = w;
1080	}	1170	}
1081		1171
1082	void	1172	void
1083	ev_prepare_stop (struct ev_prepare *w)	1173	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1084	{	1174	{
1085	ev_clear_pending ((W)w);	1175	ev_clear_pending (EV_A_ (W)w);
1086	if (ev_is_active (w))	1176	if (ev_is_active (w))
1087	return;	1177	return;
1088		1178
1089	prepares [w->active - 1] = prepares [--preparecnt];	1179	prepares [w->active - 1] = prepares [--preparecnt];
1090	ev_stop ((W)w);	1180	ev_stop (EV_A_ (W)w);
1091	}	1181	}
1092		1182
1093	void	1183	void
1094	ev_check_start (struct ev_check *w)	1184	ev_check_start (EV_P_ struct ev_check *w)
1095	{	1185	{
1096	if (ev_is_active (w))	1186	if (ev_is_active (w))
1097	return;	1187	return;
1098		1188
1099	ev_start ((W)w, ++checkcnt);	1189	ev_start (EV_A_ (W)w, ++checkcnt);
1100	array_needsize (checks, checkmax, checkcnt, );	1190	array_needsize (checks, checkmax, checkcnt, );
1101	checks [checkcnt - 1] = w;	1191	checks [checkcnt - 1] = w;
1102	}	1192	}
1103		1193
1104	void	1194	void
1105	ev_check_stop (struct ev_check *w)	1195	ev_check_stop (EV_P_ struct ev_check *w)
1106	{	1196	{
1107	ev_clear_pending ((W)w);	1197	ev_clear_pending (EV_A_ (W)w);
1108	if (ev_is_active (w))	1198	if (ev_is_active (w))
1109	return;	1199	return;
1110		1200
1111	checks [w->active - 1] = checks [--checkcnt];	1201	checks [w->active - 1] = checks [--checkcnt];
1112	ev_stop ((W)w);	1202	ev_stop (EV_A_ (W)w);
1113	}	1203	}
1114		1204
1115	void	1205	void
1116	ev_child_start (struct ev_child *w)	1206	ev_child_start (EV_P_ struct ev_child *w)
1117	{	1207	{
1118	if (ev_is_active (w))	1208	if (ev_is_active (w))
1119	return;	1209	return;
1120		1210
1121	ev_start ((W)w, 1);	1211	ev_start (EV_A_ (W)w, 1);
1122	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1212	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1123	}	1213	}
1124		1214
1125	void	1215	void
1126	ev_child_stop (struct ev_child *w)	1216	ev_child_stop (EV_P_ struct ev_child *w)
1127	{	1217	{
1128	ev_clear_pending ((W)w);	1218	ev_clear_pending (EV_A_ (W)w);
1129	if (ev_is_active (w))	1219	if (ev_is_active (w))
1130	return;	1220	return;
1131		1221
1132	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1222	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1133	ev_stop ((W)w);	1223	ev_stop (EV_A_ (W)w);
1134	}	1224	}
1135		1225
1136	/*****************************************************************************/	1226	/*****************************************************************************/
1137		1227
1138	struct ev_once	1228	struct ev_once
…		…
1142	void (cb)(int revents, void arg);	1232	void (cb)(int revents, void arg);
1143	void *arg;	1233	void *arg;
1144	};	1234	};
1145		1235
1146	static void	1236	static void
1147	once_cb (struct ev_once *once, int revents)	1237	once_cb (EV_P_ struct ev_once *once, int revents)
1148	{	1238	{
1149	void (cb)(int revents, void arg) = once->cb;	1239	void (cb)(int revents, void arg) = once->cb;
1150	void *arg = once->arg;	1240	void *arg = once->arg;
1151		1241
1152	ev_io_stop (&once->io);	1242	ev_io_stop (EV_A_ &once->io);
1153	ev_timer_stop (&once->to);	1243	ev_timer_stop (EV_A_ &once->to);
1154	free (once);	1244	free (once);
1155		1245
1156	cb (revents, arg);	1246	cb (revents, arg);
1157	}	1247	}
1158		1248
1159	static void	1249	static void
1160	once_cb_io (struct ev_io *w, int revents)	1250	once_cb_io (EV_P_ struct ev_io *w, int revents)
1161	{	1251	{
1162	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);
1163	}	1253	}
1164		1254
1165	static void	1255	static void
1166	once_cb_to (struct ev_timer *w, int revents)	1256	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1167	{	1257	{
1168	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);
1169	}	1259	}
1170		1260
1171	void	1261	void
1172	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)
1173	{	1263	{
1174	struct ev_once *once = malloc (sizeof (struct ev_once));	1264	struct ev_once *once = malloc (sizeof (struct ev_once));
1175		1265
1176	if (!once)	1266	if (!once)
1177	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1267	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1182		1272
1183	ev_watcher_init (&once->io, once_cb_io);	1273	ev_watcher_init (&once->io, once_cb_io);
1184	if (fd >= 0)	1274	if (fd >= 0)
1185	{	1275	{
1186	ev_io_set (&once->io, fd, events);	1276	ev_io_set (&once->io, fd, events);
1187	ev_io_start (&once->io);	1277	ev_io_start (EV_A_ &once->io);
1188	}	1278	}
1189		1279
1190	ev_watcher_init (&once->to, once_cb_to);	1280	ev_watcher_init (&once->to, once_cb_to);
1191	if (timeout >= 0.)	1281	if (timeout >= 0.)
1192	{	1282	{
1193	ev_timer_set (&once->to, timeout, 0.);	1283	ev_timer_set (&once->to, timeout, 0.);
1194	ev_timer_start (&once->to);	1284	ev_timer_start (EV_A_ &once->to);
1195	}	1285	}
1196	}	1286	}
1197	}	1287	}
1198		1288
1199	/*****************************************************************************/	1289	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.46 by root, Sat Nov 3 09:20:12 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 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs.
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC