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

Comparing libev/ev.c (file contents):
Revision 1.43 by root, Fri Nov 2 20:21:33 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>
…		…
42	#include <stdio.h>	42	#include <stdio.h>
43		43
44	#include <assert.h>	44	#include <assert.h>
45	#include <errno.h>	45	#include <errno.h>
46	#include <sys/types.h>	46	#include <sys/types.h>
		47	#ifndef WIN32
47	#include <sys/wait.h>	48	# include <sys/wait.h>
		49	#endif
48	#include <sys/time.h>	50	#include <sys/time.h>
49	#include <time.h>	51	#include <time.h>
50		52
51	/**/	53	/**/
52		54
…		…
56		58
57	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
59	#endif	61	#endif
60		62
61	#ifndef EV_USE_POLL	63	#ifndef EV_USEV_POLL
62	# 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 */
63	#endif	65	#endif
64		66
65	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
		69	#endif
		70
		71	#ifndef EV_USE_KQUEUE
		72	# define EV_USE_KQUEUE 0
67	#endif	73	#endif
68		74
69	#ifndef EV_USE_REALTIME	75	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	76	# define EV_USE_REALTIME 1
71	#endif	77	#endif
…		…
107		113
108	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
109	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
110	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
111		117
112	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */
113	ev_tstamp ev_now;	119	static ev_tstamp rt_now;
114	int ev_method;	120	static int method;
115		121
116	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
117		123
118	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
119	static void (*method_modify)(int fd, int oev, int nev);	125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
120	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
121		156
122	/*****************************************************************************/	157	/*****************************************************************************/
123		158
124	ev_tstamp	159	inline ev_tstamp
125	ev_time (void)	160	ev_time (void)
126	{	161	{
127	#if EV_USE_REALTIME	162	#if EV_USE_REALTIME
128	struct timespec ts;	163	struct timespec ts;
129	clock_gettime (CLOCK_REALTIME, &ts);	164	clock_gettime (CLOCK_REALTIME, &ts);
…		…
133	gettimeofday (&tv, 0);	168	gettimeofday (&tv, 0);
134	return tv.tv_sec + tv.tv_usec * 1e-6;	169	return tv.tv_sec + tv.tv_usec * 1e-6;
135	#endif	170	#endif
136	}	171	}
137		172
138	static ev_tstamp	173	inline ev_tstamp
139	get_clock (void)	174	get_clock (void)
140	{	175	{
141	#if EV_USE_MONOTONIC	176	#if EV_USE_MONOTONIC
142	if (expect_true (have_monotonic))	177	if (expect_true (have_monotonic))
143	{	178	{
…		…
146	return ts.tv_sec + ts.tv_nsec * 1e-9;	181	return ts.tv_sec + ts.tv_nsec * 1e-9;
147	}	182	}
148	#endif	183	#endif
149		184
150	return ev_time ();	185	return ev_time ();
		186	}
		187
		188	ev_tstamp
		189	ev_now (EV_P)
		190	{
		191	return rt_now;
151	}	192	}
152		193
153	#define array_roundsize(base,n) ((n) \| 4 & ~3)	194	#define array_roundsize(base,n) ((n) \| 4 & ~3)
154		195
155	#define array_needsize(base,cur,cnt,init) \	196	#define array_needsize(base,cur,cnt,init) \
…		…
169		210
170	/*****************************************************************************/	211	/*****************************************************************************/
171		212
172	typedef struct	213	typedef struct
173	{	214	{
174	struct ev_io *head;	215	struct ev_watcher_list *head;
175	unsigned char events;	216	unsigned char events;
176	unsigned char reify;	217	unsigned char reify;
177	} ANFD;	218	} ANFD;
178		219
179	static ANFD *anfds;	220	static ANFD *anfds;
…		…
200		241
201	static ANPENDING *pendings [NUMPRI];	242	static ANPENDING *pendings [NUMPRI];
202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];	243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
203		244
204	static void	245	static void
205	event (W w, int events)	246	event (EV_P_ W w, int events)
206	{	247	{
207	if (w->pending)	248	if (w->pending)
208	{	249	{
209	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
210	return;	251	return;
…		…
215	pendings [ABSPRI (w)][w->pending - 1].w = w;	256	pendings [ABSPRI (w)][w->pending - 1].w = w;
216	pendings [ABSPRI (w)][w->pending - 1].events = events;	257	pendings [ABSPRI (w)][w->pending - 1].events = events;
217	}	258	}
218		259
219	static void	260	static void
220	queue_events (W *events, int eventcnt, int type)	261	queue_events (EV_P_ W *events, int eventcnt, int type)
221	{	262	{
222	int i;	263	int i;
223		264
224	for (i = 0; i < eventcnt; ++i)	265	for (i = 0; i < eventcnt; ++i)
225	event (events [i], type);	266	event (EV_A_ events [i], type);
226	}	267	}
227		268
228	static void	269	static void
229	fd_event (int fd, int events)	270	fd_event (EV_P_ int fd, int events)
230	{	271	{
231	ANFD *anfd = anfds + fd;	272	ANFD *anfd = anfds + fd;
232	struct ev_io *w;	273	struct ev_io *w;
233		274
234	for (w = anfd->head; w; w = w->next)	275	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
235	{	276	{
236	int ev = w->events & events;	277	int ev = w->events & events;
237		278
238	if (ev)	279	if (ev)
239	event ((W)w, ev);	280	event (EV_A_ (W)w, ev);
240	}	281	}
241	}	282	}
242		283
243	/*****************************************************************************/	284	/*****************************************************************************/
244		285
245	static int *fdchanges;	286	static int *fdchanges;
246	static int fdchangemax, fdchangecnt;	287	static int fdchangemax, fdchangecnt;
247		288
248	static void	289	static void
249	fd_reify (void)	290	fd_reify (EV_P)
250	{	291	{
251	int i;	292	int i;
252		293
253	for (i = 0; i < fdchangecnt; ++i)	294	for (i = 0; i < fdchangecnt; ++i)
254	{	295	{
…		…
256	ANFD *anfd = anfds + fd;	297	ANFD *anfd = anfds + fd;
257	struct ev_io *w;	298	struct ev_io *w;
258		299
259	int events = 0;	300	int events = 0;
260		301
261	for (w = anfd->head; w; w = w->next)	302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
262	events \|= w->events;	303	events \|= w->events;
263		304
264	anfd->reify = 0;	305	anfd->reify = 0;
265		306
266	if (anfd->events != events)	307	if (anfd->events != events)
267	{	308	{
268	method_modify (fd, anfd->events, events);	309	method_modify (EV_A_ fd, anfd->events, events);
269	anfd->events = events;	310	anfd->events = events;
270	}	311	}
271	}	312	}
272		313
273	fdchangecnt = 0;	314	fdchangecnt = 0;
274	}	315	}
275		316
276	static void	317	static void
277	fd_change (int fd)	318	fd_change (EV_P_ int fd)
278	{	319	{
279	if (anfds [fd].reify \|\| fdchangecnt < 0)	320	if (anfds [fd].reify \|\| fdchangecnt < 0)
280	return;	321	return;
281		322
282	anfds [fd].reify = 1;	323	anfds [fd].reify = 1;
…		…
285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
286	fdchanges [fdchangecnt - 1] = fd;	327	fdchanges [fdchangecnt - 1] = fd;
287	}	328	}
288		329
289	static void	330	static void
290	fd_kill (int fd)	331	fd_kill (EV_P_ int fd)
291	{	332	{
292	struct ev_io *w;	333	struct ev_io *w;
293		334
294	printf ("killing fd %d\n", fd);//D
295	while ((w = anfds [fd].head))	335	while ((w = (struct ev_io *)anfds [fd].head))
296	{	336	{
297	ev_io_stop (w);	337	ev_io_stop (EV_A_ w);
298	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
299	}	339	}
300	}	340	}
301		341
302	/* called on EBADF to verify fds */	342	/* called on EBADF to verify fds */
303	static void	343	static void
304	fd_ebadf (void)	344	fd_ebadf (EV_P)
305	{	345	{
306	int fd;	346	int fd;
307		347
308	for (fd = 0; fd < anfdmax; ++fd)	348	for (fd = 0; fd < anfdmax; ++fd)
309	if (anfds [fd].events)	349	if (anfds [fd].events)
310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
311	fd_kill (fd);	351	fd_kill (EV_A_ fd);
312	}	352	}
313		353
314	/* 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 */
315	static void	355	static void
316	fd_enomem (void)	356	fd_enomem (EV_P)
317	{	357	{
318	int fd = anfdmax;	358	int fd = anfdmax;
319		359
320	while (fd--)	360	while (fd--)
321	if (anfds [fd].events)	361	if (anfds [fd].events)
322	{	362	{
323	close (fd);	363	close (fd);
324	fd_kill (fd);	364	fd_kill (EV_A_ fd);
325	return;	365	return;
326	}	366	}
327	}	367	}
328		368
329	/*****************************************************************************/	369	/*****************************************************************************/
…		…
377		417
378	/*****************************************************************************/	418	/*****************************************************************************/
379		419
380	typedef struct	420	typedef struct
381	{	421	{
382	struct ev_signal *head;	422	struct ev_watcher_list *head;
383	sig_atomic_t volatile gotsig;	423	sig_atomic_t volatile gotsig;
384	} ANSIG;	424	} ANSIG;
385		425
386	static ANSIG *signals;	426	static ANSIG *signals;
387	static int signalmax;	427	static int signalmax;
…		…
407	{	447	{
408	signals [signum - 1].gotsig = 1;	448	signals [signum - 1].gotsig = 1;
409		449
410	if (!gotsig)	450	if (!gotsig)
411	{	451	{
		452	int old_errno = errno;
412	gotsig = 1;	453	gotsig = 1;
413	write (sigpipe [1], &signum, 1);	454	write (sigpipe [1], &signum, 1);
		455	errno = old_errno;
414	}	456	}
415	}	457	}
416		458
417	static void	459	static void
418	sigcb (struct ev_io *iow, int revents)	460	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	461	{
420	struct ev_signal *w;	462	struct ev_watcher_list *w;
421	int signum;	463	int signum;
422		464
423	read (sigpipe [0], &revents, 1);	465	read (sigpipe [0], &revents, 1);
424	gotsig = 0;	466	gotsig = 0;
425		467
…		…
427	if (signals [signum].gotsig)	469	if (signals [signum].gotsig)
428	{	470	{
429	signals [signum].gotsig = 0;	471	signals [signum].gotsig = 0;
430		472
431	for (w = signals [signum].head; w; w = w->next)	473	for (w = signals [signum].head; w; w = w->next)
432	event ((W)w, EV_SIGNAL);	474	event (EV_A_ (W)w, EV_SIGNAL);
433	}	475	}
434	}	476	}
435		477
436	static void	478	static void
437	siginit (void)	479	siginit (EV_P)
438	{	480	{
		481	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	482	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	483	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		484
442	/* rather than sort out wether we really need nb, set it */	485	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		488	#endif
445		489
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	490	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	491	ev_io_start (&sigev);
		492	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	493	}
449		494
450	/*****************************************************************************/	495	/*****************************************************************************/
451		496
452	static struct ev_idle **idles;	497	static struct ev_idle **idles;
…		…
461	/*****************************************************************************/	506	/*****************************************************************************/
462		507
463	static struct ev_child *childs [PID_HASHSIZE];	508	static struct ev_child *childs [PID_HASHSIZE];
464	static struct ev_signal childev;	509	static struct ev_signal childev;
465		510
		511	#ifndef WIN32
		512
466	#ifndef WCONTINUED	513	#ifndef WCONTINUED
467	# define WCONTINUED 0	514	# define WCONTINUED 0
468	#endif	515	#endif
469		516
470	static void	517	static void
471	childcb (struct ev_signal *sw, int revents)	518	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	519	{
473	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	{
474	int pid, status;	535	int pid, status;
475		536
476	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	537	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	538	{
478	if (w->pid == pid \|\| !w->pid)	539	/* make sure we are called again until all childs have been reaped */
479	{	540	event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	541
481	event ((W)w, EV_CHILD);	542	child_reap (EV_A_ sw, pid, pid, status);
482	}	543	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		544	}
483	}	545	}
		546
		547	#endif
484		548
485	/*****************************************************************************/	549	/*****************************************************************************/
486		550
		551	#if EV_USE_KQUEUE
		552	# include "ev_kqueue.c"
		553	#endif
487	#if EV_USE_EPOLL	554	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	555	# include "ev_epoll.c"
489	#endif	556	#endif
490	#if EV_USE_POLL	557	#if EV_USEV_POLL
491	# include "ev_poll.c"	558	# include "ev_poll.c"
492	#endif	559	#endif
493	#if EV_USE_SELECT	560	#if EV_USE_SELECT
494	# include "ev_select.c"	561	# include "ev_select.c"
495	#endif	562	#endif
…		…
504	ev_version_minor (void)	571	ev_version_minor (void)
505	{	572	{
506	return EV_VERSION_MINOR;	573	return EV_VERSION_MINOR;
507	}	574	}
508		575
509	/* 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 */
510	static int	577	static int
511	enable_secure ()	578	enable_secure (void)
512	{	579	{
		580	#ifdef WIN32
		581	return 0;
		582	#else
513	return getuid () != geteuid ()	583	return getuid () != geteuid ()
514	\|\| getgid () != getegid ();	584	\|\| getgid () != getegid ();
		585	#endif
515	}	586	}
516		587
		588	int
		589	ev_method (EV_P)
		590	{
		591	return method;
		592	}
		593
		594	int
517	int ev_init (int methods)	595	ev_init (EV_P_ int methods)
518	{	596	{
519	if (!ev_method)	597	if (!method)
520	{	598	{
521	#if EV_USE_MONOTONIC	599	#if EV_USE_MONOTONIC
522	{	600	{
523	struct timespec ts;	601	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	602	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	603	have_monotonic = 1;
526	}	604	}
527	#endif	605	#endif
528		606
529	ev_now = ev_time ();	607	rt_now = ev_time ();
530	now = get_clock ();	608	mn_now = get_clock ();
531	now_floor = now;	609	now_floor = mn_now;
532	diff = ev_now - now;	610	diff = rt_now - mn_now;
533		611
534	if (pipe (sigpipe))	612	if (pipe (sigpipe))
535	return 0;	613	return 0;
536		614
537	if (methods == EVMETHOD_AUTO)	615	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	616	if (!enable_secure () && getenv ("LIBmethodS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	617	methods = atoi (getenv ("LIBmethodS"));
540	else	618	else
541	methods = EVMETHOD_ANY;	619	methods = EVMETHOD_ANY;
542		620
543	ev_method = 0;	621	method = 0;
		622	#if EV_USE_KQUEUE
		623	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		624	#endif
544	#if EV_USE_EPOLL	625	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	626	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	627	#endif
547	#if EV_USE_POLL	628	#if EV_USEV_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	629	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	630	#endif
550	#if EV_USE_SELECT	631	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	632	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	633	#endif
553		634
554	if (ev_method)	635	if (method)
555	{	636	{
556	ev_watcher_init (&sigev, sigcb);	637	ev_watcher_init (&sigev, sigcb);
		638	ev_set_priority (&sigev, EV_MAXPRI);
557	siginit ();	639	siginit (EV_A);
558		640
		641	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	642	ev_signal_init (&childev, childcb, SIGCHLD);
		643	ev_set_priority (&childev, EV_MAXPRI);
560	ev_signal_start (&childev);	644	ev_signal_start (EV_A_ &childev);
		645	ev_unref (EV_A); /* child watcher should not keep loop alive */
		646	#endif
561	}	647	}
562	}	648	}
563		649
564	return ev_method;	650	return method;
565	}	651	}
566		652
567	/*****************************************************************************/	653	/*****************************************************************************/
568		654
569	void	655	void
…		…
580		666
581	void	667	void
582	ev_fork_child (void)	668	ev_fork_child (void)
583	{	669	{
584	#if EV_USE_EPOLL	670	#if EV_USE_EPOLL
585	if (ev_method == EVMETHOD_EPOLL)	671	if (method == EVMETHOD_EPOLL)
586	epoll_postfork_child ();	672	epoll_postfork_child ();
587	#endif	673	#endif
588		674
589	ev_io_stop (&sigev);	675	ev_io_stop (&sigev);
590	close (sigpipe [0]);	676	close (sigpipe [0]);
…		…
594	}	680	}
595		681
596	/*****************************************************************************/	682	/*****************************************************************************/
597		683
598	static void	684	static void
599	call_pending (void)	685	call_pending (EV_P)
600	{	686	{
601	int pri;	687	int pri;
602		688
603	for (pri = NUMPRI; pri--; )	689	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	690	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	692	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		693
608	if (p->w)	694	if (p->w)
609	{	695	{
610	p->w->pending = 0;	696	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	697	p->w->cb (EV_A_ p->w, p->events);
612	}	698	}
613	}	699	}
614	}	700	}
615		701
616	static void	702	static void
617	timers_reify (void)	703	timers_reify (EV_P)
618	{	704	{
619	while (timercnt && timers [0]->at <= now)	705	while (timercnt && timers [0]->at <= mn_now)
620	{	706	{
621	struct ev_timer *w = timers [0];	707	struct ev_timer *w = timers [0];
622		708
623	/* first reschedule or stop timer */	709	/* first reschedule or stop timer */
624	if (w->repeat)	710	if (w->repeat)
625	{	711	{
626	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.));
627	w->at = now + w->repeat;	713	w->at = mn_now + w->repeat;
628	downheap ((WT *)timers, timercnt, 0);	714	downheap ((WT *)timers, timercnt, 0);
629	}	715	}
630	else	716	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	717	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		718
633	event ((W)w, EV_TIMEOUT);	719	event ((W)w, EV_TIMEOUT);
634	}	720	}
635	}	721	}
636		722
637	static void	723	static void
638	periodics_reify (void)	724	periodics_reify (EV_P)
639	{	725	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	726	while (periodiccnt && periodics [0]->at <= rt_now)
641	{	727	{
642	struct ev_periodic *w = periodics [0];	728	struct ev_periodic *w = periodics [0];
643		729
644	/* first reschedule or stop timer */	730	/* first reschedule or stop timer */
645	if (w->interval)	731	if (w->interval)
646	{	732	{
647	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;
648	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));
649	downheap ((WT *)periodics, periodiccnt, 0);	735	downheap ((WT *)periodics, periodiccnt, 0);
650	}	736	}
651	else	737	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	738	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		739
654	event ((W)w, EV_PERIODIC);	740	event (EV_A_ (W)w, EV_PERIODIC);
655	}	741	}
656	}	742	}
657		743
658	static void	744	static void
659	periodics_reschedule (ev_tstamp diff)	745	periodics_reschedule (EV_P_ ev_tstamp diff)
660	{	746	{
661	int i;	747	int i;
662		748
663	/* adjust periodics after time jump */	749	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	750	for (i = 0; i < periodiccnt; ++i)
665	{	751	{
666	struct ev_periodic *w = periodics [i];	752	struct ev_periodic *w = periodics [i];
667		753
668	if (w->interval)	754	if (w->interval)
669	{	755	{
670	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;
671		757
672	if (fabs (diff) >= 1e-4)	758	if (fabs (diff) >= 1e-4)
673	{	759	{
674	ev_periodic_stop (w);	760	ev_periodic_stop (EV_A_ w);
675	ev_periodic_start (w);	761	ev_periodic_start (EV_A_ w);
676		762
677	i = 0; /* restart loop, inefficient, but time jumps should be rare */	763	i = 0; /* restart loop, inefficient, but time jumps should be rare */
678	}	764	}
679	}	765	}
680	}	766	}
681	}	767	}
682		768
683	static int	769	inline int
684	time_update_monotonic (void)	770	time_update_monotonic (EV_P)
685	{	771	{
686	now = get_clock ();	772	mn_now = get_clock ();
687		773
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	774	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	775	{
690	ev_now = now + diff;	776	rt_now = mn_now + diff;
691	return 0;	777	return 0;
692	}	778	}
693	else	779	else
694	{	780	{
695	now_floor = now;	781	now_floor = mn_now;
696	ev_now = ev_time ();	782	rt_now = ev_time ();
697	return 1;	783	return 1;
698	}	784	}
699	}	785	}
700		786
701	static void	787	static void
702	time_update (void)	788	time_update (EV_P)
703	{	789	{
704	int i;	790	int i;
705		791
706	#if EV_USE_MONOTONIC	792	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	793	if (expect_true (have_monotonic))
708	{	794	{
709	if (time_update_monotonic ())	795	if (time_update_monotonic (EV_A))
710	{	796	{
711	ev_tstamp odiff = diff;	797	ev_tstamp odiff = diff;
712		798
713	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 */
714	{	800	{
715	diff = ev_now - now;	801	diff = rt_now - mn_now;
716		802
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	803	if (fabs (odiff - diff) < MIN_TIMEJUMP)
718	return; /* all is well */	804	return; /* all is well */
719		805
720	ev_now = ev_time ();	806	rt_now = ev_time ();
721	now = get_clock ();	807	mn_now = get_clock ();
722	now_floor = now;	808	now_floor = mn_now;
723	}	809	}
724		810
725	periodics_reschedule (diff - odiff);	811	periodics_reschedule (EV_A_ diff - odiff);
726	/* no timer adjustment, as the monotonic clock doesn't jump */	812	/* no timer adjustment, as the monotonic clock doesn't jump */
727	}	813	}
728	}	814	}
729	else	815	else
730	#endif	816	#endif
731	{	817	{
732	ev_now = ev_time ();	818	rt_now = ev_time ();
733		819
734	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))
735	{	821	{
736	periodics_reschedule (ev_now - now);	822	periodics_reschedule (EV_A_ rt_now - mn_now);
737		823
738	/* 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 */
739	for (i = 0; i < timercnt; ++i)	825	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	826	timers [i]->at += diff;
741	}	827	}
742		828
743	now = ev_now;	829	mn_now = rt_now;
744	}	830	}
745	}	831	}
746		832
747	int ev_loop_done;	833	void
		834	ev_ref (EV_P)
		835	{
		836	++activecnt;
		837	}
748		838
		839	void
		840	ev_unref (EV_P)
		841	{
		842	--activecnt;
		843	}
		844
		845	static int loop_done;
		846
		847	void
749	void ev_loop (int flags)	848	ev_loop (EV_P_ int flags)
750	{	849	{
751	double block;	850	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	851	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
753		852
754	do	853	do
755	{	854	{
756	/* queue check watchers (and execute them) */	855	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	856	if (expect_false (preparecnt))
758	{	857	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	858	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	859	call_pending (EV_A);
761	}	860	}
762		861
763	/* update fd-related kernel structures */	862	/* update fd-related kernel structures */
764	fd_reify ();	863	fd_reify (EV_A);
765		864
766	/* calculate blocking time */	865	/* calculate blocking time */
767		866
768	/* 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
769	always have timers, we just calculate it always */	868	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	869	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	870	if (expect_true (have_monotonic))
772	time_update_monotonic ();	871	time_update_monotonic (EV_A);
773	else	872	else
774	#endif	873	#endif
775	{	874	{
776	ev_now = ev_time ();	875	rt_now = ev_time ();
777	now = ev_now;	876	mn_now = rt_now;
778	}	877	}
779		878
780	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	879	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
781	block = 0.;	880	block = 0.;
782	else	881	else
783	{	882	{
784	block = MAX_BLOCKTIME;	883	block = MAX_BLOCKTIME;
785		884
786	if (timercnt)	885	if (timercnt)
787	{	886	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	887	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
789	if (block > to) block = to;	888	if (block > to) block = to;
790	}	889	}
791		890
792	if (periodiccnt)	891	if (periodiccnt)
793	{	892	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	893	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
795	if (block > to) block = to;	894	if (block > to) block = to;
796	}	895	}
797		896
798	if (block < 0.) block = 0.;	897	if (block < 0.) block = 0.;
799	}	898	}
800		899
801	method_poll (block);	900	method_poll (EV_A_ block);
802		901
803	/* update ev_now, do magic */	902	/* update rt_now, do magic */
804	time_update ();	903	time_update (EV_A);
805		904
806	/* queue pending timers and reschedule them */	905	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	906	timers_reify (EV_A); /* relative timers called last */
808	periodics_reify (); /* absolute timers called first */	907	periodics_reify (EV_A); /* absolute timers called first */
809		908
810	/* queue idle watchers unless io or timers are pending */	909	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	910	if (!pendingcnt)
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	911	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		912
814	/* queue check watchers, to be executed first */	913	/* queue check watchers, to be executed first */
815	if (checkcnt)	914	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	915	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		916
818	call_pending ();	917	call_pending (EV_A);
819	}	918	}
820	while (!ev_loop_done);	919	while (activecnt && !loop_done);
821		920
822	if (ev_loop_done != 2)	921	if (loop_done != 2)
823	ev_loop_done = 0;	922	loop_done = 0;
		923	}
		924
		925	void
		926	ev_unloop (EV_P_ int how)
		927	{
		928	loop_done = how;
824	}	929	}
825		930
826	/*****************************************************************************/	931	/*****************************************************************************/
827		932
828	static void	933	inline void
829	wlist_add (WL *head, WL elem)	934	wlist_add (WL *head, WL elem)
830	{	935	{
831	elem->next = *head;	936	elem->next = *head;
832	*head = elem;	937	*head = elem;
833	}	938	}
834		939
835	static void	940	inline void
836	wlist_del (WL *head, WL elem)	941	wlist_del (WL *head, WL elem)
837	{	942	{
838	while (*head)	943	while (*head)
839	{	944	{
840	if (*head == elem)	945	if (*head == elem)
…		…
845		950
846	head = &(*head)->next;	951	head = &(*head)->next;
847	}	952	}
848	}	953	}
849		954
850	static void	955	inline void
851	ev_clear_pending (W w)	956	ev_clear_pending (EV_P_ W w)
852	{	957	{
853	if (w->pending)	958	if (w->pending)
854	{	959	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	960	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	961	w->pending = 0;
857	}	962	}
858	}	963	}
859		964
860	static void	965	inline void
861	ev_start (W w, int active)	966	ev_start (EV_P_ W w, int active)
862	{	967	{
863	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	968	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
864	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	969	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
865		970
866	w->active = active;	971	w->active = active;
		972	ev_ref (EV_A);
867	}	973	}
868		974
869	static void	975	inline void
870	ev_stop (W w)	976	ev_stop (EV_P_ W w)
871	{	977	{
		978	ev_unref (EV_A);
872	w->active = 0;	979	w->active = 0;
873	}	980	}
874		981
875	/*****************************************************************************/	982	/*****************************************************************************/
876		983
877	void	984	void
878	ev_io_start (struct ev_io *w)	985	ev_io_start (EV_P_ struct ev_io *w)
879	{	986	{
880	int fd = w->fd;	987	int fd = w->fd;
881		988
882	if (ev_is_active (w))	989	if (ev_is_active (w))
883	return;	990	return;
884		991
885	assert (("ev_io_start called with negative fd", fd >= 0));	992	assert (("ev_io_start called with negative fd", fd >= 0));
886		993
887	ev_start ((W)w, 1);	994	ev_start (EV_A_ (W)w, 1);
888	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	995	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
889	wlist_add ((WL *)&anfds[fd].head, (WL)w);	996	wlist_add ((WL *)&anfds[fd].head, (WL)w);
890		997
891	fd_change (fd);	998	fd_change (EV_A_ fd);
892	}	999	}
893		1000
894	void	1001	void
895	ev_io_stop (struct ev_io *w)	1002	ev_io_stop (EV_P_ struct ev_io *w)
896	{	1003	{
897	ev_clear_pending ((W)w);	1004	ev_clear_pending (EV_A_ (W)w);
898	if (!ev_is_active (w))	1005	if (!ev_is_active (w))
899	return;	1006	return;
900		1007
901	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1008	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
902	ev_stop ((W)w);	1009	ev_stop (EV_A_ (W)w);
903		1010
904	fd_change (w->fd);	1011	fd_change (EV_A_ w->fd);
905	}	1012	}
906		1013
907	void	1014	void
908	ev_timer_start (struct ev_timer *w)	1015	ev_timer_start (EV_P_ struct ev_timer *w)
909	{	1016	{
910	if (ev_is_active (w))	1017	if (ev_is_active (w))
911	return;	1018	return;
912		1019
913	w->at += now;	1020	w->at += mn_now;
914		1021
915	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.));
916		1023
917	ev_start ((W)w, ++timercnt);	1024	ev_start (EV_A_ (W)w, ++timercnt);
918	array_needsize (timers, timermax, timercnt, );	1025	array_needsize (timers, timermax, timercnt, );
919	timers [timercnt - 1] = w;	1026	timers [timercnt - 1] = w;
920	upheap ((WT *)timers, timercnt - 1);	1027	upheap ((WT *)timers, timercnt - 1);
921	}	1028	}
922		1029
923	void	1030	void
924	ev_timer_stop (struct ev_timer *w)	1031	ev_timer_stop (EV_P_ struct ev_timer *w)
925	{	1032	{
926	ev_clear_pending ((W)w);	1033	ev_clear_pending (EV_A_ (W)w);
927	if (!ev_is_active (w))	1034	if (!ev_is_active (w))
928	return;	1035	return;
929		1036
930	if (w->active < timercnt--)	1037	if (w->active < timercnt--)
931	{	1038	{
…		…
933	downheap ((WT *)timers, timercnt, w->active - 1);	1040	downheap ((WT *)timers, timercnt, w->active - 1);
934	}	1041	}
935		1042
936	w->at = w->repeat;	1043	w->at = w->repeat;
937		1044
938	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
939	}	1046	}
940		1047
941	void	1048	void
942	ev_timer_again (struct ev_timer *w)	1049	ev_timer_again (EV_P_ struct ev_timer *w)
943	{	1050	{
944	if (ev_is_active (w))	1051	if (ev_is_active (w))
945	{	1052	{
946	if (w->repeat)	1053	if (w->repeat)
947	{	1054	{
948	w->at = now + w->repeat;	1055	w->at = mn_now + w->repeat;
949	downheap ((WT *)timers, timercnt, w->active - 1);	1056	downheap ((WT *)timers, timercnt, w->active - 1);
950	}	1057	}
951	else	1058	else
952	ev_timer_stop (w);	1059	ev_timer_stop (EV_A_ w);
953	}	1060	}
954	else if (w->repeat)	1061	else if (w->repeat)
955	ev_timer_start (w);	1062	ev_timer_start (EV_A_ w);
956	}	1063	}
957		1064
958	void	1065	void
959	ev_periodic_start (struct ev_periodic *w)	1066	ev_periodic_start (EV_P_ struct ev_periodic *w)
960	{	1067	{
961	if (ev_is_active (w))	1068	if (ev_is_active (w))
962	return;	1069	return;
963		1070
964	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.));
965		1072
966	/* 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 */
967	if (w->interval)	1074	if (w->interval)
968	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1075	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
969		1076
970	ev_start ((W)w, ++periodiccnt);	1077	ev_start (EV_A_ (W)w, ++periodiccnt);
971	array_needsize (periodics, periodicmax, periodiccnt, );	1078	array_needsize (periodics, periodicmax, periodiccnt, );
972	periodics [periodiccnt - 1] = w;	1079	periodics [periodiccnt - 1] = w;
973	upheap ((WT *)periodics, periodiccnt - 1);	1080	upheap ((WT *)periodics, periodiccnt - 1);
974	}	1081	}
975		1082
976	void	1083	void
977	ev_periodic_stop (struct ev_periodic *w)	1084	ev_periodic_stop (EV_P_ struct ev_periodic *w)
978	{	1085	{
979	ev_clear_pending ((W)w);	1086	ev_clear_pending (EV_A_ (W)w);
980	if (!ev_is_active (w))	1087	if (!ev_is_active (w))
981	return;	1088	return;
982		1089
983	if (w->active < periodiccnt--)	1090	if (w->active < periodiccnt--)
984	{	1091	{
985	periodics [w->active - 1] = periodics [periodiccnt];	1092	periodics [w->active - 1] = periodics [periodiccnt];
986	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1093	downheap ((WT *)periodics, periodiccnt, w->active - 1);
987	}	1094	}
988		1095
989	ev_stop ((W)w);	1096	ev_stop (EV_A_ (W)w);
990	}	1097	}
991		1098
		1099	#ifndef SA_RESTART
		1100	# define SA_RESTART 0
		1101	#endif
		1102
992	void	1103	void
993	ev_signal_start (struct ev_signal *w)	1104	ev_signal_start (EV_P_ struct ev_signal *w)
994	{	1105	{
995	if (ev_is_active (w))	1106	if (ev_is_active (w))
996	return;	1107	return;
997		1108
998	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));
999		1110
1000	ev_start ((W)w, 1);	1111	ev_start (EV_A_ (W)w, 1);
1001	array_needsize (signals, signalmax, w->signum, signals_init);	1112	array_needsize (signals, signalmax, w->signum, signals_init);
1002	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1113	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1003		1114
1004	if (!w->next)	1115	if (!w->next)
1005	{	1116	{
1006	struct sigaction sa;	1117	struct sigaction sa;
1007	sa.sa_handler = sighandler;	1118	sa.sa_handler = sighandler;
1008	sigfillset (&sa.sa_mask);	1119	sigfillset (&sa.sa_mask);
1009	sa.sa_flags = 0;	1120	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1010	sigaction (w->signum, &sa, 0);	1121	sigaction (w->signum, &sa, 0);
1011	}	1122	}
1012	}	1123	}
1013		1124
1014	void	1125	void
1015	ev_signal_stop (struct ev_signal *w)	1126	ev_signal_stop (EV_P_ struct ev_signal *w)
1016	{	1127	{
1017	ev_clear_pending ((W)w);	1128	ev_clear_pending (EV_A_ (W)w);
1018	if (!ev_is_active (w))	1129	if (!ev_is_active (w))
1019	return;	1130	return;
1020		1131
1021	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1132	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1022	ev_stop ((W)w);	1133	ev_stop (EV_A_ (W)w);
1023		1134
1024	if (!signals [w->signum - 1].head)	1135	if (!signals [w->signum - 1].head)
1025	signal (w->signum, SIG_DFL);	1136	signal (w->signum, SIG_DFL);
1026	}	1137	}
1027		1138
1028	void	1139	void
1029	ev_idle_start (struct ev_idle *w)	1140	ev_idle_start (EV_P_ struct ev_idle *w)
1030	{	1141	{
1031	if (ev_is_active (w))	1142	if (ev_is_active (w))
1032	return;	1143	return;
1033		1144
1034	ev_start ((W)w, ++idlecnt);	1145	ev_start (EV_A_ (W)w, ++idlecnt);
1035	array_needsize (idles, idlemax, idlecnt, );	1146	array_needsize (idles, idlemax, idlecnt, );
1036	idles [idlecnt - 1] = w;	1147	idles [idlecnt - 1] = w;
1037	}	1148	}
1038		1149
1039	void	1150	void
1040	ev_idle_stop (struct ev_idle *w)	1151	ev_idle_stop (EV_P_ struct ev_idle *w)
1041	{	1152	{
1042	ev_clear_pending ((W)w);	1153	ev_clear_pending (EV_A_ (W)w);
1043	if (ev_is_active (w))	1154	if (ev_is_active (w))
1044	return;	1155	return;
1045		1156
1046	idles [w->active - 1] = idles [--idlecnt];	1157	idles [w->active - 1] = idles [--idlecnt];
1047	ev_stop ((W)w);	1158	ev_stop (EV_A_ (W)w);
1048	}	1159	}
1049		1160
1050	void	1161	void
1051	ev_prepare_start (struct ev_prepare *w)	1162	ev_prepare_start (EV_P_ struct ev_prepare *w)
1052	{	1163	{
1053	if (ev_is_active (w))	1164	if (ev_is_active (w))
1054	return;	1165	return;
1055		1166
1056	ev_start ((W)w, ++preparecnt);	1167	ev_start (EV_A_ (W)w, ++preparecnt);
1057	array_needsize (prepares, preparemax, preparecnt, );	1168	array_needsize (prepares, preparemax, preparecnt, );
1058	prepares [preparecnt - 1] = w;	1169	prepares [preparecnt - 1] = w;
1059	}	1170	}
1060		1171
1061	void	1172	void
1062	ev_prepare_stop (struct ev_prepare *w)	1173	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1063	{	1174	{
1064	ev_clear_pending ((W)w);	1175	ev_clear_pending (EV_A_ (W)w);
1065	if (ev_is_active (w))	1176	if (ev_is_active (w))
1066	return;	1177	return;
1067		1178
1068	prepares [w->active - 1] = prepares [--preparecnt];	1179	prepares [w->active - 1] = prepares [--preparecnt];
1069	ev_stop ((W)w);	1180	ev_stop (EV_A_ (W)w);
1070	}	1181	}
1071		1182
1072	void	1183	void
1073	ev_check_start (struct ev_check *w)	1184	ev_check_start (EV_P_ struct ev_check *w)
1074	{	1185	{
1075	if (ev_is_active (w))	1186	if (ev_is_active (w))
1076	return;	1187	return;
1077		1188
1078	ev_start ((W)w, ++checkcnt);	1189	ev_start (EV_A_ (W)w, ++checkcnt);
1079	array_needsize (checks, checkmax, checkcnt, );	1190	array_needsize (checks, checkmax, checkcnt, );
1080	checks [checkcnt - 1] = w;	1191	checks [checkcnt - 1] = w;
1081	}	1192	}
1082		1193
1083	void	1194	void
1084	ev_check_stop (struct ev_check *w)	1195	ev_check_stop (EV_P_ struct ev_check *w)
1085	{	1196	{
1086	ev_clear_pending ((W)w);	1197	ev_clear_pending (EV_A_ (W)w);
1087	if (ev_is_active (w))	1198	if (ev_is_active (w))
1088	return;	1199	return;
1089		1200
1090	checks [w->active - 1] = checks [--checkcnt];	1201	checks [w->active - 1] = checks [--checkcnt];
1091	ev_stop ((W)w);	1202	ev_stop (EV_A_ (W)w);
1092	}	1203	}
1093		1204
1094	void	1205	void
1095	ev_child_start (struct ev_child *w)	1206	ev_child_start (EV_P_ struct ev_child *w)
1096	{	1207	{
1097	if (ev_is_active (w))	1208	if (ev_is_active (w))
1098	return;	1209	return;
1099		1210
1100	ev_start ((W)w, 1);	1211	ev_start (EV_A_ (W)w, 1);
1101	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1212	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1102	}	1213	}
1103		1214
1104	void	1215	void
1105	ev_child_stop (struct ev_child *w)	1216	ev_child_stop (EV_P_ struct ev_child *w)
1106	{	1217	{
1107	ev_clear_pending ((W)w);	1218	ev_clear_pending (EV_A_ (W)w);
1108	if (ev_is_active (w))	1219	if (ev_is_active (w))
1109	return;	1220	return;
1110		1221
1111	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1222	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	ev_stop ((W)w);	1223	ev_stop (EV_A_ (W)w);
1113	}	1224	}
1114		1225
1115	/*****************************************************************************/	1226	/*****************************************************************************/
1116		1227
1117	struct ev_once	1228	struct ev_once
…		…
1121	void (cb)(int revents, void arg);	1232	void (cb)(int revents, void arg);
1122	void *arg;	1233	void *arg;
1123	};	1234	};
1124		1235
1125	static void	1236	static void
1126	once_cb (struct ev_once *once, int revents)	1237	once_cb (EV_P_ struct ev_once *once, int revents)
1127	{	1238	{
1128	void (cb)(int revents, void arg) = once->cb;	1239	void (cb)(int revents, void arg) = once->cb;
1129	void *arg = once->arg;	1240	void *arg = once->arg;
1130		1241
1131	ev_io_stop (&once->io);	1242	ev_io_stop (EV_A_ &once->io);
1132	ev_timer_stop (&once->to);	1243	ev_timer_stop (EV_A_ &once->to);
1133	free (once);	1244	free (once);
1134		1245
1135	cb (revents, arg);	1246	cb (revents, arg);
1136	}	1247	}
1137		1248
1138	static void	1249	static void
1139	once_cb_io (struct ev_io *w, int revents)	1250	once_cb_io (EV_P_ struct ev_io *w, int revents)
1140	{	1251	{
1141	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);
1142	}	1253	}
1143		1254
1144	static void	1255	static void
1145	once_cb_to (struct ev_timer *w, int revents)	1256	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1146	{	1257	{
1147	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);
1148	}	1259	}
1149		1260
1150	void	1261	void
1151	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)
1152	{	1263	{
1153	struct ev_once *once = malloc (sizeof (struct ev_once));	1264	struct ev_once *once = malloc (sizeof (struct ev_once));
1154		1265
1155	if (!once)	1266	if (!once)
1156	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1267	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1161		1272
1162	ev_watcher_init (&once->io, once_cb_io);	1273	ev_watcher_init (&once->io, once_cb_io);
1163	if (fd >= 0)	1274	if (fd >= 0)
1164	{	1275	{
1165	ev_io_set (&once->io, fd, events);	1276	ev_io_set (&once->io, fd, events);
1166	ev_io_start (&once->io);	1277	ev_io_start (EV_A_ &once->io);
1167	}	1278	}
1168		1279
1169	ev_watcher_init (&once->to, once_cb_to);	1280	ev_watcher_init (&once->to, once_cb_to);
1170	if (timeout >= 0.)	1281	if (timeout >= 0.)
1171	{	1282	{
1172	ev_timer_set (&once->to, timeout, 0.);	1283	ev_timer_set (&once->to, timeout, 0.);
1173	ev_timer_start (&once->to);	1284	ev_timer_start (EV_A_ &once->to);
1174	}	1285	}
1175	}	1286	}
1176	}	1287	}
1177		1288
1178	/*****************************************************************************/	1289	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.43 by root, Fri Nov 2 20:21:33 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 1.43 by root, Fri Nov 2 20:21:33 2007 UTC vs.
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC