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

Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 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
67	#endif	69	#endif
…		…
111		113
112	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
113	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
114	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
115		117
116	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */
117	ev_tstamp ev_now;	119	static ev_tstamp rt_now;
118	int ev_method;	120	static int method;
119		121
120	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
121		123
122	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
123	static void (*method_modify)(int fd, int oev, int nev);	125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
124	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
125		156
126	/*****************************************************************************/	157	/*****************************************************************************/
127		158
128	ev_tstamp	159	inline ev_tstamp
129	ev_time (void)	160	ev_time (void)
130	{	161	{
131	#if EV_USE_REALTIME	162	#if EV_USE_REALTIME
132	struct timespec ts;	163	struct timespec ts;
133	clock_gettime (CLOCK_REALTIME, &ts);	164	clock_gettime (CLOCK_REALTIME, &ts);
…		…
137	gettimeofday (&tv, 0);	168	gettimeofday (&tv, 0);
138	return tv.tv_sec + tv.tv_usec * 1e-6;	169	return tv.tv_sec + tv.tv_usec * 1e-6;
139	#endif	170	#endif
140	}	171	}
141		172
142	static ev_tstamp	173	inline ev_tstamp
143	get_clock (void)	174	get_clock (void)
144	{	175	{
145	#if EV_USE_MONOTONIC	176	#if EV_USE_MONOTONIC
146	if (expect_true (have_monotonic))	177	if (expect_true (have_monotonic))
147	{	178	{
…		…
150	return ts.tv_sec + ts.tv_nsec * 1e-9;	181	return ts.tv_sec + ts.tv_nsec * 1e-9;
151	}	182	}
152	#endif	183	#endif
153		184
154	return ev_time ();	185	return ev_time ();
		186	}
		187
		188	ev_tstamp
		189	ev_now (EV_P)
		190	{
		191	return rt_now;
155	}	192	}
156		193
157	#define array_roundsize(base,n) ((n) \| 4 & ~3)	194	#define array_roundsize(base,n) ((n) \| 4 & ~3)
158		195
159	#define array_needsize(base,cur,cnt,init) \	196	#define array_needsize(base,cur,cnt,init) \
…		…
173		210
174	/*****************************************************************************/	211	/*****************************************************************************/
175		212
176	typedef struct	213	typedef struct
177	{	214	{
178	struct ev_io *head;	215	struct ev_watcher_list *head;
179	unsigned char events;	216	unsigned char events;
180	unsigned char reify;	217	unsigned char reify;
181	} ANFD;	218	} ANFD;
182		219
183	static ANFD *anfds;	220	static ANFD *anfds;
…		…
204		241
205	static ANPENDING *pendings [NUMPRI];	242	static ANPENDING *pendings [NUMPRI];
206	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];	243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
207		244
208	static void	245	static void
209	event (W w, int events)	246	event (EV_P_ W w, int events)
210	{	247	{
211	if (w->pending)	248	if (w->pending)
212	{	249	{
213	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
214	return;	251	return;
…		…
219	pendings [ABSPRI (w)][w->pending - 1].w = w;	256	pendings [ABSPRI (w)][w->pending - 1].w = w;
220	pendings [ABSPRI (w)][w->pending - 1].events = events;	257	pendings [ABSPRI (w)][w->pending - 1].events = events;
221	}	258	}
222		259
223	static void	260	static void
224	queue_events (W *events, int eventcnt, int type)	261	queue_events (EV_P_ W *events, int eventcnt, int type)
225	{	262	{
226	int i;	263	int i;
227		264
228	for (i = 0; i < eventcnt; ++i)	265	for (i = 0; i < eventcnt; ++i)
229	event (events [i], type);	266	event (EV_A_ events [i], type);
230	}	267	}
231		268
232	static void	269	static void
233	fd_event (int fd, int events)	270	fd_event (EV_P_ int fd, int events)
234	{	271	{
235	ANFD *anfd = anfds + fd;	272	ANFD *anfd = anfds + fd;
236	struct ev_io *w;	273	struct ev_io *w;
237		274
238	for (w = anfd->head; w; w = w->next)	275	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
239	{	276	{
240	int ev = w->events & events;	277	int ev = w->events & events;
241		278
242	if (ev)	279	if (ev)
243	event ((W)w, ev);	280	event (EV_A_ (W)w, ev);
244	}	281	}
245	}	282	}
246		283
247	/*****************************************************************************/	284	/*****************************************************************************/
248		285
249	static int *fdchanges;	286	static int *fdchanges;
250	static int fdchangemax, fdchangecnt;	287	static int fdchangemax, fdchangecnt;
251		288
252	static void	289	static void
253	fd_reify (void)	290	fd_reify (EV_P)
254	{	291	{
255	int i;	292	int i;
256		293
257	for (i = 0; i < fdchangecnt; ++i)	294	for (i = 0; i < fdchangecnt; ++i)
258	{	295	{
…		…
260	ANFD *anfd = anfds + fd;	297	ANFD *anfd = anfds + fd;
261	struct ev_io *w;	298	struct ev_io *w;
262		299
263	int events = 0;	300	int events = 0;
264		301
265	for (w = anfd->head; w; w = w->next)	302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
266	events \|= w->events;	303	events \|= w->events;
267		304
268	anfd->reify = 0;	305	anfd->reify = 0;
269		306
270	if (anfd->events != events)	307	if (anfd->events != events)
271	{	308	{
272	method_modify (fd, anfd->events, events);	309	method_modify (EV_A_ fd, anfd->events, events);
273	anfd->events = events;	310	anfd->events = events;
274	}	311	}
275	}	312	}
276		313
277	fdchangecnt = 0;	314	fdchangecnt = 0;
278	}	315	}
279		316
280	static void	317	static void
281	fd_change (int fd)	318	fd_change (EV_P_ int fd)
282	{	319	{
283	if (anfds [fd].reify \|\| fdchangecnt < 0)	320	if (anfds [fd].reify \|\| fdchangecnt < 0)
284	return;	321	return;
285		322
286	anfds [fd].reify = 1;	323	anfds [fd].reify = 1;
…		…
289	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
290	fdchanges [fdchangecnt - 1] = fd;	327	fdchanges [fdchangecnt - 1] = fd;
291	}	328	}
292		329
293	static void	330	static void
294	fd_kill (int fd)	331	fd_kill (EV_P_ int fd)
295	{	332	{
296	struct ev_io *w;	333	struct ev_io *w;
297		334
298	printf ("killing fd %d\n", fd);//D
299	while ((w = anfds [fd].head))	335	while ((w = (struct ev_io *)anfds [fd].head))
300	{	336	{
301	ev_io_stop (w);	337	ev_io_stop (EV_A_ w);
302	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
303	}	339	}
304	}	340	}
305		341
306	/* called on EBADF to verify fds */	342	/* called on EBADF to verify fds */
307	static void	343	static void
308	fd_ebadf (void)	344	fd_ebadf (EV_P)
309	{	345	{
310	int fd;	346	int fd;
311		347
312	for (fd = 0; fd < anfdmax; ++fd)	348	for (fd = 0; fd < anfdmax; ++fd)
313	if (anfds [fd].events)	349	if (anfds [fd].events)
314	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
315	fd_kill (fd);	351	fd_kill (EV_A_ fd);
316	}	352	}
317		353
318	/* 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 */
319	static void	355	static void
320	fd_enomem (void)	356	fd_enomem (EV_P)
321	{	357	{
322	int fd = anfdmax;	358	int fd = anfdmax;
323		359
324	while (fd--)	360	while (fd--)
325	if (anfds [fd].events)	361	if (anfds [fd].events)
326	{	362	{
327	close (fd);	363	close (fd);
328	fd_kill (fd);	364	fd_kill (EV_A_ fd);
329	return;	365	return;
330	}	366	}
331	}	367	}
332		368
333	/*****************************************************************************/	369	/*****************************************************************************/
…		…
381		417
382	/*****************************************************************************/	418	/*****************************************************************************/
383		419
384	typedef struct	420	typedef struct
385	{	421	{
386	struct ev_signal *head;	422	struct ev_watcher_list *head;
387	sig_atomic_t volatile gotsig;	423	sig_atomic_t volatile gotsig;
388	} ANSIG;	424	} ANSIG;
389		425
390	static ANSIG *signals;	426	static ANSIG *signals;
391	static int signalmax;	427	static int signalmax;
…		…
411	{	447	{
412	signals [signum - 1].gotsig = 1;	448	signals [signum - 1].gotsig = 1;
413		449
414	if (!gotsig)	450	if (!gotsig)
415	{	451	{
		452	int old_errno = errno;
416	gotsig = 1;	453	gotsig = 1;
417	write (sigpipe [1], &signum, 1);	454	write (sigpipe [1], &signum, 1);
		455	errno = old_errno;
418	}	456	}
419	}	457	}
420		458
421	static void	459	static void
422	sigcb (struct ev_io *iow, int revents)	460	sigcb (EV_P_ struct ev_io *iow, int revents)
423	{	461	{
424	struct ev_signal *w;	462	struct ev_watcher_list *w;
425	int signum;	463	int signum;
426		464
427	read (sigpipe [0], &revents, 1);	465	read (sigpipe [0], &revents, 1);
428	gotsig = 0;	466	gotsig = 0;
429		467
…		…
431	if (signals [signum].gotsig)	469	if (signals [signum].gotsig)
432	{	470	{
433	signals [signum].gotsig = 0;	471	signals [signum].gotsig = 0;
434		472
435	for (w = signals [signum].head; w; w = w->next)	473	for (w = signals [signum].head; w; w = w->next)
436	event ((W)w, EV_SIGNAL);	474	event (EV_A_ (W)w, EV_SIGNAL);
437	}	475	}
438	}	476	}
439		477
440	static void	478	static void
441	siginit (void)	479	siginit (EV_P)
442	{	480	{
		481	#ifndef WIN32
443	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	482	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
444	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	483	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
445		484
446	/* rather than sort out wether we really need nb, set it */	485	/* rather than sort out wether we really need nb, set it */
447	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
448	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		488	#endif
449		489
450	ev_io_set (&sigev, sigpipe [0], EV_READ);	490	ev_io_set (&sigev, sigpipe [0], EV_READ);
451	ev_io_start (&sigev);	491	ev_io_start (&sigev);
		492	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	493	}
453		494
454	/*****************************************************************************/	495	/*****************************************************************************/
455		496
456	static struct ev_idle **idles;	497	static struct ev_idle **idles;
…		…
465	/*****************************************************************************/	506	/*****************************************************************************/
466		507
467	static struct ev_child *childs [PID_HASHSIZE];	508	static struct ev_child *childs [PID_HASHSIZE];
468	static struct ev_signal childev;	509	static struct ev_signal childev;
469		510
		511	#ifndef WIN32
		512
470	#ifndef WCONTINUED	513	#ifndef WCONTINUED
471	# define WCONTINUED 0	514	# define WCONTINUED 0
472	#endif	515	#endif
473		516
474	static void	517	static void
475	childcb (struct ev_signal *sw, int revents)	518	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
476	{	519	{
477	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	{
478	int pid, status;	535	int pid, status;
479		536
480	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	537	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
481	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	538	{
482	if (w->pid == pid \|\| !w->pid)	539	/* make sure we are called again until all childs have been reaped */
483	{	540	event (EV_A_ (W)sw, EV_SIGNAL);
484	w->status = status;	541
485	event ((W)w, EV_CHILD);	542	child_reap (EV_A_ sw, pid, pid, status);
486	}	543	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		544	}
487	}	545	}
		546
		547	#endif
488		548
489	/*****************************************************************************/	549	/*****************************************************************************/
490		550
491	#if EV_USE_KQUEUE	551	#if EV_USE_KQUEUE
492	# include "ev_kqueue.c"	552	# include "ev_kqueue.c"
493	#endif	553	#endif
494	#if EV_USE_EPOLL	554	#if EV_USE_EPOLL
495	# include "ev_epoll.c"	555	# include "ev_epoll.c"
496	#endif	556	#endif
497	#if EV_USE_POLL	557	#if EV_USEV_POLL
498	# include "ev_poll.c"	558	# include "ev_poll.c"
499	#endif	559	#endif
500	#if EV_USE_SELECT	560	#if EV_USE_SELECT
501	# include "ev_select.c"	561	# include "ev_select.c"
502	#endif	562	#endif
…		…
511	ev_version_minor (void)	571	ev_version_minor (void)
512	{	572	{
513	return EV_VERSION_MINOR;	573	return EV_VERSION_MINOR;
514	}	574	}
515		575
516	/* 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 */
517	static int	577	static int
518	enable_secure ()	578	enable_secure (void)
519	{	579	{
		580	#ifdef WIN32
		581	return 0;
		582	#else
520	return getuid () != geteuid ()	583	return getuid () != geteuid ()
521	\|\| getgid () != getegid ();	584	\|\| getgid () != getegid ();
		585	#endif
522	}	586	}
523		587
		588	int
		589	ev_method (EV_P)
		590	{
		591	return method;
		592	}
		593
		594	int
524	int ev_init (int methods)	595	ev_init (EV_P_ int methods)
525	{	596	{
526	if (!ev_method)	597	if (!method)
527	{	598	{
528	#if EV_USE_MONOTONIC	599	#if EV_USE_MONOTONIC
529	{	600	{
530	struct timespec ts;	601	struct timespec ts;
531	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	602	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
532	have_monotonic = 1;	603	have_monotonic = 1;
533	}	604	}
534	#endif	605	#endif
535		606
536	ev_now = ev_time ();	607	rt_now = ev_time ();
537	now = get_clock ();	608	mn_now = get_clock ();
538	now_floor = now;	609	now_floor = mn_now;
539	diff = ev_now - now;	610	diff = rt_now - mn_now;
540		611
541	if (pipe (sigpipe))	612	if (pipe (sigpipe))
542	return 0;	613	return 0;
543		614
544	if (methods == EVMETHOD_AUTO)	615	if (methods == EVMETHOD_AUTO)
545	if (!enable_secure () && getenv ("LIBEV_METHODS"))	616	if (!enable_secure () && getenv ("LIBmethodS"))
546	methods = atoi (getenv ("LIBEV_METHODS"));	617	methods = atoi (getenv ("LIBmethodS"));
547	else	618	else
548	methods = EVMETHOD_ANY;	619	methods = EVMETHOD_ANY;
549		620
550	ev_method = 0;	621	method = 0;
551	#if EV_USE_KQUEUE	622	#if EV_USE_KQUEUE
552	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	623	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
553	#endif	624	#endif
554	#if EV_USE_EPOLL	625	#if EV_USE_EPOLL
555	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	626	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
556	#endif	627	#endif
557	#if EV_USE_POLL	628	#if EV_USEV_POLL
558	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	629	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
559	#endif	630	#endif
560	#if EV_USE_SELECT	631	#if EV_USE_SELECT
561	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	632	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
562	#endif	633	#endif
563		634
564	if (ev_method)	635	if (method)
565	{	636	{
566	ev_watcher_init (&sigev, sigcb);	637	ev_watcher_init (&sigev, sigcb);
		638	ev_set_priority (&sigev, EV_MAXPRI);
567	siginit ();	639	siginit (EV_A);
568		640
		641	#ifndef WIN32
569	ev_signal_init (&childev, childcb, SIGCHLD);	642	ev_signal_init (&childev, childcb, SIGCHLD);
		643	ev_set_priority (&childev, EV_MAXPRI);
570	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
571	}	647	}
572	}	648	}
573		649
574	return ev_method;	650	return method;
575	}	651	}
576		652
577	/*****************************************************************************/	653	/*****************************************************************************/
578		654
579	void	655	void
…		…
590		666
591	void	667	void
592	ev_fork_child (void)	668	ev_fork_child (void)
593	{	669	{
594	#if EV_USE_EPOLL	670	#if EV_USE_EPOLL
595	if (ev_method == EVMETHOD_EPOLL)	671	if (method == EVMETHOD_EPOLL)
596	epoll_postfork_child ();	672	epoll_postfork_child ();
597	#endif	673	#endif
598		674
599	ev_io_stop (&sigev);	675	ev_io_stop (&sigev);
600	close (sigpipe [0]);	676	close (sigpipe [0]);
…		…
604	}	680	}
605		681
606	/*****************************************************************************/	682	/*****************************************************************************/
607		683
608	static void	684	static void
609	call_pending (void)	685	call_pending (EV_P)
610	{	686	{
611	int pri;	687	int pri;
612		688
613	for (pri = NUMPRI; pri--; )	689	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	690	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	692	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		693
618	if (p->w)	694	if (p->w)
619	{	695	{
620	p->w->pending = 0;	696	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	697	p->w->cb (EV_A_ p->w, p->events);
622	}	698	}
623	}	699	}
624	}	700	}
625		701
626	static void	702	static void
627	timers_reify (void)	703	timers_reify (EV_P)
628	{	704	{
629	while (timercnt && timers [0]->at <= now)	705	while (timercnt && timers [0]->at <= mn_now)
630	{	706	{
631	struct ev_timer *w = timers [0];	707	struct ev_timer *w = timers [0];
632		708
633	/* first reschedule or stop timer */	709	/* first reschedule or stop timer */
634	if (w->repeat)	710	if (w->repeat)
635	{	711	{
636	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.));
637	w->at = now + w->repeat;	713	w->at = mn_now + w->repeat;
638	downheap ((WT *)timers, timercnt, 0);	714	downheap ((WT *)timers, timercnt, 0);
639	}	715	}
640	else	716	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	717	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		718
643	event ((W)w, EV_TIMEOUT);	719	event ((W)w, EV_TIMEOUT);
644	}	720	}
645	}	721	}
646		722
647	static void	723	static void
648	periodics_reify (void)	724	periodics_reify (EV_P)
649	{	725	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	726	while (periodiccnt && periodics [0]->at <= rt_now)
651	{	727	{
652	struct ev_periodic *w = periodics [0];	728	struct ev_periodic *w = periodics [0];
653		729
654	/* first reschedule or stop timer */	730	/* first reschedule or stop timer */
655	if (w->interval)	731	if (w->interval)
656	{	732	{
657	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;
658	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));
659	downheap ((WT *)periodics, periodiccnt, 0);	735	downheap ((WT *)periodics, periodiccnt, 0);
660	}	736	}
661	else	737	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	738	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		739
664	event ((W)w, EV_PERIODIC);	740	event (EV_A_ (W)w, EV_PERIODIC);
665	}	741	}
666	}	742	}
667		743
668	static void	744	static void
669	periodics_reschedule (ev_tstamp diff)	745	periodics_reschedule (EV_P_ ev_tstamp diff)
670	{	746	{
671	int i;	747	int i;
672		748
673	/* adjust periodics after time jump */	749	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	750	for (i = 0; i < periodiccnt; ++i)
675	{	751	{
676	struct ev_periodic *w = periodics [i];	752	struct ev_periodic *w = periodics [i];
677		753
678	if (w->interval)	754	if (w->interval)
679	{	755	{
680	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;
681		757
682	if (fabs (diff) >= 1e-4)	758	if (fabs (diff) >= 1e-4)
683	{	759	{
684	ev_periodic_stop (w);	760	ev_periodic_stop (EV_A_ w);
685	ev_periodic_start (w);	761	ev_periodic_start (EV_A_ w);
686		762
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */	763	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}	764	}
689	}	765	}
690	}	766	}
691	}	767	}
692		768
693	static int	769	inline int
694	time_update_monotonic (void)	770	time_update_monotonic (EV_P)
695	{	771	{
696	now = get_clock ();	772	mn_now = get_clock ();
697		773
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	774	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	775	{
700	ev_now = now + diff;	776	rt_now = mn_now + diff;
701	return 0;	777	return 0;
702	}	778	}
703	else	779	else
704	{	780	{
705	now_floor = now;	781	now_floor = mn_now;
706	ev_now = ev_time ();	782	rt_now = ev_time ();
707	return 1;	783	return 1;
708	}	784	}
709	}	785	}
710		786
711	static void	787	static void
712	time_update (void)	788	time_update (EV_P)
713	{	789	{
714	int i;	790	int i;
715		791
716	#if EV_USE_MONOTONIC	792	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	793	if (expect_true (have_monotonic))
718	{	794	{
719	if (time_update_monotonic ())	795	if (time_update_monotonic (EV_A))
720	{	796	{
721	ev_tstamp odiff = diff;	797	ev_tstamp odiff = diff;
722		798
723	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 */
724	{	800	{
725	diff = ev_now - now;	801	diff = rt_now - mn_now;
726		802
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	803	if (fabs (odiff - diff) < MIN_TIMEJUMP)
728	return; /* all is well */	804	return; /* all is well */
729		805
730	ev_now = ev_time ();	806	rt_now = ev_time ();
731	now = get_clock ();	807	mn_now = get_clock ();
732	now_floor = now;	808	now_floor = mn_now;
733	}	809	}
734		810
735	periodics_reschedule (diff - odiff);	811	periodics_reschedule (EV_A_ diff - odiff);
736	/* no timer adjustment, as the monotonic clock doesn't jump */	812	/* no timer adjustment, as the monotonic clock doesn't jump */
737	}	813	}
738	}	814	}
739	else	815	else
740	#endif	816	#endif
741	{	817	{
742	ev_now = ev_time ();	818	rt_now = ev_time ();
743		819
744	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))
745	{	821	{
746	periodics_reschedule (ev_now - now);	822	periodics_reschedule (EV_A_ rt_now - mn_now);
747		823
748	/* 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 */
749	for (i = 0; i < timercnt; ++i)	825	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	826	timers [i]->at += diff;
751	}	827	}
752		828
753	now = ev_now;	829	mn_now = rt_now;
754	}	830	}
755	}	831	}
756		832
757	int ev_loop_done;	833	void
		834	ev_ref (EV_P)
		835	{
		836	++activecnt;
		837	}
758		838
		839	void
		840	ev_unref (EV_P)
		841	{
		842	--activecnt;
		843	}
		844
		845	static int loop_done;
		846
		847	void
759	void ev_loop (int flags)	848	ev_loop (EV_P_ int flags)
760	{	849	{
761	double block;	850	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	851	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
763		852
764	do	853	do
765	{	854	{
766	/* queue check watchers (and execute them) */	855	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	856	if (expect_false (preparecnt))
768	{	857	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	858	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	859	call_pending (EV_A);
771	}	860	}
772		861
773	/* update fd-related kernel structures */	862	/* update fd-related kernel structures */
774	fd_reify ();	863	fd_reify (EV_A);
775		864
776	/* calculate blocking time */	865	/* calculate blocking time */
777		866
778	/* 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
779	always have timers, we just calculate it always */	868	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	869	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	870	if (expect_true (have_monotonic))
782	time_update_monotonic ();	871	time_update_monotonic (EV_A);
783	else	872	else
784	#endif	873	#endif
785	{	874	{
786	ev_now = ev_time ();	875	rt_now = ev_time ();
787	now = ev_now;	876	mn_now = rt_now;
788	}	877	}
789		878
790	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	879	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
791	block = 0.;	880	block = 0.;
792	else	881	else
793	{	882	{
794	block = MAX_BLOCKTIME;	883	block = MAX_BLOCKTIME;
795		884
796	if (timercnt)	885	if (timercnt)
797	{	886	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	887	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
799	if (block > to) block = to;	888	if (block > to) block = to;
800	}	889	}
801		890
802	if (periodiccnt)	891	if (periodiccnt)
803	{	892	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	893	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
805	if (block > to) block = to;	894	if (block > to) block = to;
806	}	895	}
807		896
808	if (block < 0.) block = 0.;	897	if (block < 0.) block = 0.;
809	}	898	}
810		899
811	method_poll (block);	900	method_poll (EV_A_ block);
812		901
813	/* update ev_now, do magic */	902	/* update rt_now, do magic */
814	time_update ();	903	time_update (EV_A);
815		904
816	/* queue pending timers and reschedule them */	905	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	906	timers_reify (EV_A); /* relative timers called last */
818	periodics_reify (); /* absolute timers called first */	907	periodics_reify (EV_A); /* absolute timers called first */
819		908
820	/* queue idle watchers unless io or timers are pending */	909	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	910	if (!pendingcnt)
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	911	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		912
824	/* queue check watchers, to be executed first */	913	/* queue check watchers, to be executed first */
825	if (checkcnt)	914	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	915	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		916
828	call_pending ();	917	call_pending (EV_A);
829	}	918	}
830	while (!ev_loop_done);	919	while (activecnt && !loop_done);
831		920
832	if (ev_loop_done != 2)	921	if (loop_done != 2)
833	ev_loop_done = 0;	922	loop_done = 0;
		923	}
		924
		925	void
		926	ev_unloop (EV_P_ int how)
		927	{
		928	loop_done = how;
834	}	929	}
835		930
836	/*****************************************************************************/	931	/*****************************************************************************/
837		932
838	static void	933	inline void
839	wlist_add (WL *head, WL elem)	934	wlist_add (WL *head, WL elem)
840	{	935	{
841	elem->next = *head;	936	elem->next = *head;
842	*head = elem;	937	*head = elem;
843	}	938	}
844		939
845	static void	940	inline void
846	wlist_del (WL *head, WL elem)	941	wlist_del (WL *head, WL elem)
847	{	942	{
848	while (*head)	943	while (*head)
849	{	944	{
850	if (*head == elem)	945	if (*head == elem)
…		…
855		950
856	head = &(*head)->next;	951	head = &(*head)->next;
857	}	952	}
858	}	953	}
859		954
860	static void	955	inline void
861	ev_clear_pending (W w)	956	ev_clear_pending (EV_P_ W w)
862	{	957	{
863	if (w->pending)	958	if (w->pending)
864	{	959	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	960	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	961	w->pending = 0;
867	}	962	}
868	}	963	}
869		964
870	static void	965	inline void
871	ev_start (W w, int active)	966	ev_start (EV_P_ W w, int active)
872	{	967	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	968	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	969	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		970
876	w->active = active;	971	w->active = active;
		972	ev_ref (EV_A);
877	}	973	}
878		974
879	static void	975	inline void
880	ev_stop (W w)	976	ev_stop (EV_P_ W w)
881	{	977	{
		978	ev_unref (EV_A);
882	w->active = 0;	979	w->active = 0;
883	}	980	}
884		981
885	/*****************************************************************************/	982	/*****************************************************************************/
886		983
887	void	984	void
888	ev_io_start (struct ev_io *w)	985	ev_io_start (EV_P_ struct ev_io *w)
889	{	986	{
890	int fd = w->fd;	987	int fd = w->fd;
891		988
892	if (ev_is_active (w))	989	if (ev_is_active (w))
893	return;	990	return;
894		991
895	assert (("ev_io_start called with negative fd", fd >= 0));	992	assert (("ev_io_start called with negative fd", fd >= 0));
896		993
897	ev_start ((W)w, 1);	994	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	995	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	996	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		997
901	fd_change (fd);	998	fd_change (EV_A_ fd);
902	}	999	}
903		1000
904	void	1001	void
905	ev_io_stop (struct ev_io *w)	1002	ev_io_stop (EV_P_ struct ev_io *w)
906	{	1003	{
907	ev_clear_pending ((W)w);	1004	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	1005	if (!ev_is_active (w))
909	return;	1006	return;
910		1007
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1008	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	1009	ev_stop (EV_A_ (W)w);
913		1010
914	fd_change (w->fd);	1011	fd_change (EV_A_ w->fd);
915	}	1012	}
916		1013
917	void	1014	void
918	ev_timer_start (struct ev_timer *w)	1015	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	1016	{
920	if (ev_is_active (w))	1017	if (ev_is_active (w))
921	return;	1018	return;
922		1019
923	w->at += now;	1020	w->at += mn_now;
924		1021
925	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.));
926		1023
927	ev_start ((W)w, ++timercnt);	1024	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	1025	array_needsize (timers, timermax, timercnt, );
929	timers [timercnt - 1] = w;	1026	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	1027	upheap ((WT *)timers, timercnt - 1);
931	}	1028	}
932		1029
933	void	1030	void
934	ev_timer_stop (struct ev_timer *w)	1031	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	1032	{
936	ev_clear_pending ((W)w);	1033	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1034	if (!ev_is_active (w))
938	return;	1035	return;
939		1036
940	if (w->active < timercnt--)	1037	if (w->active < timercnt--)
941	{	1038	{
…		…
943	downheap ((WT *)timers, timercnt, w->active - 1);	1040	downheap ((WT *)timers, timercnt, w->active - 1);
944	}	1041	}
945		1042
946	w->at = w->repeat;	1043	w->at = w->repeat;
947		1044
948	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
949	}	1046	}
950		1047
951	void	1048	void
952	ev_timer_again (struct ev_timer *w)	1049	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	1050	{
954	if (ev_is_active (w))	1051	if (ev_is_active (w))
955	{	1052	{
956	if (w->repeat)	1053	if (w->repeat)
957	{	1054	{
958	w->at = now + w->repeat;	1055	w->at = mn_now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1056	downheap ((WT *)timers, timercnt, w->active - 1);
960	}	1057	}
961	else	1058	else
962	ev_timer_stop (w);	1059	ev_timer_stop (EV_A_ w);
963	}	1060	}
964	else if (w->repeat)	1061	else if (w->repeat)
965	ev_timer_start (w);	1062	ev_timer_start (EV_A_ w);
966	}	1063	}
967		1064
968	void	1065	void
969	ev_periodic_start (struct ev_periodic *w)	1066	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1067	{
971	if (ev_is_active (w))	1068	if (ev_is_active (w))
972	return;	1069	return;
973		1070
974	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.));
975		1072
976	/* 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 */
977	if (w->interval)	1074	if (w->interval)
978	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1075	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
979		1076
980	ev_start ((W)w, ++periodiccnt);	1077	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1078	array_needsize (periodics, periodicmax, periodiccnt, );
982	periodics [periodiccnt - 1] = w;	1079	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1080	upheap ((WT *)periodics, periodiccnt - 1);
984	}	1081	}
985		1082
986	void	1083	void
987	ev_periodic_stop (struct ev_periodic *w)	1084	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1085	{
989	ev_clear_pending ((W)w);	1086	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1087	if (!ev_is_active (w))
991	return;	1088	return;
992		1089
993	if (w->active < periodiccnt--)	1090	if (w->active < periodiccnt--)
994	{	1091	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1092	periodics [w->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1093	downheap ((WT *)periodics, periodiccnt, w->active - 1);
997	}	1094	}
998		1095
999	ev_stop ((W)w);	1096	ev_stop (EV_A_ (W)w);
1000	}	1097	}
1001		1098
		1099	#ifndef SA_RESTART
		1100	# define SA_RESTART 0
		1101	#endif
		1102
1002	void	1103	void
1003	ev_signal_start (struct ev_signal *w)	1104	ev_signal_start (EV_P_ struct ev_signal *w)
1004	{	1105	{
1005	if (ev_is_active (w))	1106	if (ev_is_active (w))
1006	return;	1107	return;
1007		1108
1008	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));
1009		1110
1010	ev_start ((W)w, 1);	1111	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1112	array_needsize (signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1113	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1114
1014	if (!w->next)	1115	if (!w->next)
1015	{	1116	{
1016	struct sigaction sa;	1117	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1118	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1119	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1120	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1121	sigaction (w->signum, &sa, 0);
1021	}	1122	}
1022	}	1123	}
1023		1124
1024	void	1125	void
1025	ev_signal_stop (struct ev_signal *w)	1126	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1127	{
1027	ev_clear_pending ((W)w);	1128	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1129	if (!ev_is_active (w))
1029	return;	1130	return;
1030		1131
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1132	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1133	ev_stop (EV_A_ (W)w);
1033		1134
1034	if (!signals [w->signum - 1].head)	1135	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1136	signal (w->signum, SIG_DFL);
1036	}	1137	}
1037		1138
1038	void	1139	void
1039	ev_idle_start (struct ev_idle *w)	1140	ev_idle_start (EV_P_ struct ev_idle *w)
1040	{	1141	{
1041	if (ev_is_active (w))	1142	if (ev_is_active (w))
1042	return;	1143	return;
1043		1144
1044	ev_start ((W)w, ++idlecnt);	1145	ev_start (EV_A_ (W)w, ++idlecnt);
1045	array_needsize (idles, idlemax, idlecnt, );	1146	array_needsize (idles, idlemax, idlecnt, );
1046	idles [idlecnt - 1] = w;	1147	idles [idlecnt - 1] = w;
1047	}	1148	}
1048		1149
1049	void	1150	void
1050	ev_idle_stop (struct ev_idle *w)	1151	ev_idle_stop (EV_P_ struct ev_idle *w)
1051	{	1152	{
1052	ev_clear_pending ((W)w);	1153	ev_clear_pending (EV_A_ (W)w);
1053	if (ev_is_active (w))	1154	if (ev_is_active (w))
1054	return;	1155	return;
1055		1156
1056	idles [w->active - 1] = idles [--idlecnt];	1157	idles [w->active - 1] = idles [--idlecnt];
1057	ev_stop ((W)w);	1158	ev_stop (EV_A_ (W)w);
1058	}	1159	}
1059		1160
1060	void	1161	void
1061	ev_prepare_start (struct ev_prepare *w)	1162	ev_prepare_start (EV_P_ struct ev_prepare *w)
1062	{	1163	{
1063	if (ev_is_active (w))	1164	if (ev_is_active (w))
1064	return;	1165	return;
1065		1166
1066	ev_start ((W)w, ++preparecnt);	1167	ev_start (EV_A_ (W)w, ++preparecnt);
1067	array_needsize (prepares, preparemax, preparecnt, );	1168	array_needsize (prepares, preparemax, preparecnt, );
1068	prepares [preparecnt - 1] = w;	1169	prepares [preparecnt - 1] = w;
1069	}	1170	}
1070		1171
1071	void	1172	void
1072	ev_prepare_stop (struct ev_prepare *w)	1173	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1073	{	1174	{
1074	ev_clear_pending ((W)w);	1175	ev_clear_pending (EV_A_ (W)w);
1075	if (ev_is_active (w))	1176	if (ev_is_active (w))
1076	return;	1177	return;
1077		1178
1078	prepares [w->active - 1] = prepares [--preparecnt];	1179	prepares [w->active - 1] = prepares [--preparecnt];
1079	ev_stop ((W)w);	1180	ev_stop (EV_A_ (W)w);
1080	}	1181	}
1081		1182
1082	void	1183	void
1083	ev_check_start (struct ev_check *w)	1184	ev_check_start (EV_P_ struct ev_check *w)
1084	{	1185	{
1085	if (ev_is_active (w))	1186	if (ev_is_active (w))
1086	return;	1187	return;
1087		1188
1088	ev_start ((W)w, ++checkcnt);	1189	ev_start (EV_A_ (W)w, ++checkcnt);
1089	array_needsize (checks, checkmax, checkcnt, );	1190	array_needsize (checks, checkmax, checkcnt, );
1090	checks [checkcnt - 1] = w;	1191	checks [checkcnt - 1] = w;
1091	}	1192	}
1092		1193
1093	void	1194	void
1094	ev_check_stop (struct ev_check *w)	1195	ev_check_stop (EV_P_ struct ev_check *w)
1095	{	1196	{
1096	ev_clear_pending ((W)w);	1197	ev_clear_pending (EV_A_ (W)w);
1097	if (ev_is_active (w))	1198	if (ev_is_active (w))
1098	return;	1199	return;
1099		1200
1100	checks [w->active - 1] = checks [--checkcnt];	1201	checks [w->active - 1] = checks [--checkcnt];
1101	ev_stop ((W)w);	1202	ev_stop (EV_A_ (W)w);
1102	}	1203	}
1103		1204
1104	void	1205	void
1105	ev_child_start (struct ev_child *w)	1206	ev_child_start (EV_P_ struct ev_child *w)
1106	{	1207	{
1107	if (ev_is_active (w))	1208	if (ev_is_active (w))
1108	return;	1209	return;
1109		1210
1110	ev_start ((W)w, 1);	1211	ev_start (EV_A_ (W)w, 1);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1212	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}	1213	}
1113		1214
1114	void	1215	void
1115	ev_child_stop (struct ev_child *w)	1216	ev_child_stop (EV_P_ struct ev_child *w)
1116	{	1217	{
1117	ev_clear_pending ((W)w);	1218	ev_clear_pending (EV_A_ (W)w);
1118	if (ev_is_active (w))	1219	if (ev_is_active (w))
1119	return;	1220	return;
1120		1221
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1222	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1223	ev_stop (EV_A_ (W)w);
1123	}	1224	}
1124		1225
1125	/*****************************************************************************/	1226	/*****************************************************************************/
1126		1227
1127	struct ev_once	1228	struct ev_once
…		…
1131	void (cb)(int revents, void arg);	1232	void (cb)(int revents, void arg);
1132	void *arg;	1233	void *arg;
1133	};	1234	};
1134		1235
1135	static void	1236	static void
1136	once_cb (struct ev_once *once, int revents)	1237	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1238	{
1138	void (cb)(int revents, void arg) = once->cb;	1239	void (cb)(int revents, void arg) = once->cb;
1139	void *arg = once->arg;	1240	void *arg = once->arg;
1140		1241
1141	ev_io_stop (&once->io);	1242	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1243	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1244	free (once);
1144		1245
1145	cb (revents, arg);	1246	cb (revents, arg);
1146	}	1247	}
1147		1248
1148	static void	1249	static void
1149	once_cb_io (struct ev_io *w, int revents)	1250	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1251	{
1151	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);
1152	}	1253	}
1153		1254
1154	static void	1255	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1256	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1257	{
1157	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);
1158	}	1259	}
1159		1260
1160	void	1261	void
1161	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)
1162	{	1263	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1264	struct ev_once *once = malloc (sizeof (struct ev_once));
1164		1265
1165	if (!once)	1266	if (!once)
1166	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1267	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1171		1272
1172	ev_watcher_init (&once->io, once_cb_io);	1273	ev_watcher_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1274	if (fd >= 0)
1174	{	1275	{
1175	ev_io_set (&once->io, fd, events);	1276	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1277	ev_io_start (EV_A_ &once->io);
1177	}	1278	}
1178		1279
1179	ev_watcher_init (&once->to, once_cb_to);	1280	ev_watcher_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1281	if (timeout >= 0.)
1181	{	1282	{
1182	ev_timer_set (&once->to, timeout, 0.);	1283	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1284	ev_timer_start (EV_A_ &once->to);
1184	}	1285	}
1185	}	1286	}
1186	}	1287	}
1187		1288
1188	/*****************************************************************************/	1289	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.44 by root, Fri Nov 2 20:59:14 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 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC