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

Comparing libev/ev.c (file contents):
Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs.
Revision 1.53 by root, Sat Nov 3 22:31:11 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
33	#endif	33	#endif
34		34
35	#include <math.h>	35	#include <math.h>
36	#include <stdlib.h>	36	#include <stdlib.h>
…		…
58		58
59	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
61	#endif	61	#endif
62		62
63	#ifndef EV_USE_POLL	63	#ifndef EV_USEV_POLL
64	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	65	#endif
66		66
67	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
69	#endif	69	#endif
…		…
113		113
114	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
117		117
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */
119	ev_tstamp ev_now;
120	int ev_method;
121
122	static int have_monotonic; /* runtime */
123
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127
128	/*****************************************************************************/	118	/*****************************************************************************/
129		119
130	ev_tstamp	120	typedef struct
		121	{
		122	struct ev_watcher_list *head;
		123	unsigned char events;
		124	unsigned char reify;
		125	} ANFD;
		126
		127	typedef struct
		128	{
		129	W w;
		130	int events;
		131	} ANPENDING;
		132
		133	#ifdef EV_MULTIPLICITY
		134	struct ev_loop
		135	{
		136	# define VAR(name,decl) decl
		137	# include "ev_vars.h"
		138	};
		139	#else
		140	# define VAR(name,decl) static decl
		141	# include "ev_vars.h"
		142	#endif
		143	#undef VAR
		144
		145	/*****************************************************************************/
		146
		147	inline ev_tstamp
131	ev_time (void)	148	ev_time (void)
132	{	149	{
133	#if EV_USE_REALTIME	150	#if EV_USE_REALTIME
134	struct timespec ts;	151	struct timespec ts;
135	clock_gettime (CLOCK_REALTIME, &ts);	152	clock_gettime (CLOCK_REALTIME, &ts);
…		…
139	gettimeofday (&tv, 0);	156	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	157	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	158	#endif
142	}	159	}
143		160
144	static ev_tstamp	161	inline ev_tstamp
145	get_clock (void)	162	get_clock (void)
146	{	163	{
147	#if EV_USE_MONOTONIC	164	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	165	if (expect_true (have_monotonic))
149	{	166	{
…		…
152	return ts.tv_sec + ts.tv_nsec * 1e-9;	169	return ts.tv_sec + ts.tv_nsec * 1e-9;
153	}	170	}
154	#endif	171	#endif
155		172
156	return ev_time ();	173	return ev_time ();
		174	}
		175
		176	ev_tstamp
		177	ev_now (EV_P)
		178	{
		179	return rt_now;
157	}	180	}
158		181
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	182	#define array_roundsize(base,n) ((n) \| 4 & ~3)
160		183
161	#define array_needsize(base,cur,cnt,init) \	184	#define array_needsize(base,cur,cnt,init) \
…		…
173	cur = newcnt; \	196	cur = newcnt; \
174	}	197	}
175		198
176	/*****************************************************************************/	199	/*****************************************************************************/
177		200
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187
188	static void	201	static void
189	anfds_init (ANFD *base, int count)	202	anfds_init (ANFD *base, int count)
190	{	203	{
191	while (count--)	204	while (count--)
192	{	205	{
…		…
196		209
197	++base;	210	++base;
198	}	211	}
199	}	212	}
200		213
201	typedef struct
202	{
203	W w;
204	int events;
205	} ANPENDING;
206
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void	214	static void
211	event (W w, int events)	215	event (EV_P_ W w, int events)
212	{	216	{
213	if (w->pending)	217	if (w->pending)
214	{	218	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	219	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
216	return;	220	return;
…		…
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	225	pendings [ABSPRI (w)][w->pending - 1].w = w;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	226	pendings [ABSPRI (w)][w->pending - 1].events = events;
223	}	227	}
224		228
225	static void	229	static void
226	queue_events (W *events, int eventcnt, int type)	230	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	231	{
228	int i;	232	int i;
229		233
230	for (i = 0; i < eventcnt; ++i)	234	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	235	event (EV_A_ events [i], type);
232	}	236	}
233		237
234	static void	238	static void
235	fd_event (int fd, int events)	239	fd_event (EV_P_ int fd, int events)
236	{	240	{
237	ANFD *anfd = anfds + fd;	241	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	242	struct ev_io *w;
239		243
240	for (w = anfd->head; w; w = w->next)	244	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	245	{
242	int ev = w->events & events;	246	int ev = w->events & events;
243		247
244	if (ev)	248	if (ev)
245	event ((W)w, ev);	249	event (EV_A_ (W)w, ev);
246	}	250	}
247	}	251	}
248		252
249	/*****************************************************************************/	253	/*****************************************************************************/
250		254
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	255	static void
255	fd_reify (void)	256	fd_reify (EV_P)
256	{	257	{
257	int i;	258	int i;
258		259
259	for (i = 0; i < fdchangecnt; ++i)	260	for (i = 0; i < fdchangecnt; ++i)
260	{	261	{
…		…
262	ANFD *anfd = anfds + fd;	263	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	264	struct ev_io *w;
264		265
265	int events = 0;	266	int events = 0;
266		267
267	for (w = anfd->head; w; w = w->next)	268	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	269	events \|= w->events;
269		270
270	anfd->reify = 0;	271	anfd->reify = 0;
271		272
272	if (anfd->events != events)	273	if (anfd->events != events)
273	{	274	{
274	method_modify (fd, anfd->events, events);	275	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	276	anfd->events = events;
276	}	277	}
277	}	278	}
278		279
279	fdchangecnt = 0;	280	fdchangecnt = 0;
280	}	281	}
281		282
282	static void	283	static void
283	fd_change (int fd)	284	fd_change (EV_P_ int fd)
284	{	285	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	286	if (anfds [fd].reify \|\| fdchangecnt < 0)
286	return;	287	return;
287		288
288	anfds [fd].reify = 1;	289	anfds [fd].reify = 1;
…		…
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	292	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
292	fdchanges [fdchangecnt - 1] = fd;	293	fdchanges [fdchangecnt - 1] = fd;
293	}	294	}
294		295
295	static void	296	static void
296	fd_kill (int fd)	297	fd_kill (EV_P_ int fd)
297	{	298	{
298	struct ev_io *w;	299	struct ev_io *w;
299		300
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	301	while ((w = (struct ev_io *)anfds [fd].head))
302	{	302	{
303	ev_io_stop (w);	303	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	304	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	305	}
306	}	306	}
307		307
308	/* called on EBADF to verify fds */	308	/* called on EBADF to verify fds */
309	static void	309	static void
310	fd_ebadf (void)	310	fd_ebadf (EV_P)
311	{	311	{
312	int fd;	312	int fd;
313		313
314	for (fd = 0; fd < anfdmax; ++fd)	314	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	315	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
317	fd_kill (fd);	317	fd_kill (EV_A_ fd);
318	}	318	}
319		319
320	/* called on ENOMEM in select/poll to kill some fds and retry */	320	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	321	static void
322	fd_enomem (void)	322	fd_enomem (EV_P)
323	{	323	{
324	int fd = anfdmax;	324	int fd = anfdmax;
325		325
326	while (fd--)	326	while (fd--)
327	if (anfds [fd].events)	327	if (anfds [fd].events)
328	{	328	{
329	close (fd);	329	close (fd);
330	fd_kill (fd);	330	fd_kill (EV_A_ fd);
331	return;	331	return;
332	}	332	}
333	}	333	}
334		334
335	/*****************************************************************************/	335	/*****************************************************************************/
336
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342		336
343	static void	337	static void
344	upheap (WT *timers, int k)	338	upheap (WT *timers, int k)
345	{	339	{
346	WT w = timers [k];	340	WT w = timers [k];
…		…
383		377
384	/*****************************************************************************/	378	/*****************************************************************************/
385		379
386	typedef struct	380	typedef struct
387	{	381	{
388	struct ev_signal *head;	382	struct ev_watcher_list *head;
389	sig_atomic_t volatile gotsig;	383	sig_atomic_t volatile gotsig;
390	} ANSIG;	384	} ANSIG;
391		385
392	static ANSIG *signals;	386	static ANSIG *signals;
393	static int signalmax;	387	static int signalmax;
394		388
395	static int sigpipe [2];	389	static int sigpipe [2];
396	static sig_atomic_t volatile gotsig;	390	static sig_atomic_t volatile gotsig;
397	static struct ev_io sigev;
398		391
399	static void	392	static void
400	signals_init (ANSIG *base, int count)	393	signals_init (ANSIG *base, int count)
401	{	394	{
402	while (count--)	395	while (count--)
…		…
413	{	406	{
414	signals [signum - 1].gotsig = 1;	407	signals [signum - 1].gotsig = 1;
415		408
416	if (!gotsig)	409	if (!gotsig)
417	{	410	{
		411	int old_errno = errno;
418	gotsig = 1;	412	gotsig = 1;
419	write (sigpipe [1], &signum, 1);	413	write (sigpipe [1], &signum, 1);
		414	errno = old_errno;
420	}	415	}
421	}	416	}
422		417
423	static void	418	static void
424	sigcb (struct ev_io *iow, int revents)	419	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	420	{
426	struct ev_signal *w;	421	struct ev_watcher_list *w;
427	int signum;	422	int signum;
428		423
429	read (sigpipe [0], &revents, 1);	424	read (sigpipe [0], &revents, 1);
430	gotsig = 0;	425	gotsig = 0;
431		426
…		…
433	if (signals [signum].gotsig)	428	if (signals [signum].gotsig)
434	{	429	{
435	signals [signum].gotsig = 0;	430	signals [signum].gotsig = 0;
436		431
437	for (w = signals [signum].head; w; w = w->next)	432	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);	433	event (EV_A_ (W)w, EV_SIGNAL);
439	}	434	}
440	}	435	}
441		436
442	static void	437	static void
443	siginit (void)	438	siginit (EV_P)
444	{	439	{
445	#ifndef WIN32	440	#ifndef WIN32
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	441	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	442	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448		443
…		…
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	446	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	447	#endif
453		448
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	449	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	450	ev_io_start (&sigev);
		451	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	452	}
457		453
458	/*****************************************************************************/	454	/*****************************************************************************/
459
460	static struct ev_idle **idles;
461	static int idlemax, idlecnt;
462
463	static struct ev_prepare **prepares;
464	static int preparemax, preparecnt;
465
466	static struct ev_check **checks;
467	static int checkmax, checkcnt;
468
469	/*****************************************************************************/
470
471	static struct ev_child *childs [PID_HASHSIZE];
472	static struct ev_signal childev;
473		455
474	#ifndef WIN32	456	#ifndef WIN32
475		457
476	#ifndef WCONTINUED	458	#ifndef WCONTINUED
477	# define WCONTINUED 0	459	# define WCONTINUED 0
478	#endif	460	#endif
479		461
480	static void	462	static void
481	childcb (struct ev_signal *sw, int revents)	463	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	464	{
483	struct ev_child *w;	465	struct ev_child *w;
		466
		467	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		468	if (w->pid == pid \|\| !w->pid)
		469	{
		470	w->priority = sw->priority; /* need to do it now */
		471	w->rpid = pid;
		472	w->rstatus = status;
		473	event (EV_A_ (W)w, EV_CHILD);
		474	}
		475	}
		476
		477	static void
		478	childcb (EV_P_ struct ev_signal *sw, int revents)
		479	{
484	int pid, status;	480	int pid, status;
485		481
486	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	482	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
487	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	483	{
488	if (w->pid == pid \|\| !w->pid)	484	/* make sure we are called again until all childs have been reaped */
489	{	485	event (EV_A_ (W)sw, EV_SIGNAL);
490	w->rpid = pid;	486
491	w->rstatus = status;	487	child_reap (EV_A_ sw, pid, pid, status);
492	event ((W)w, EV_CHILD);	488	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
493	}	489	}
494	}	490	}
495		491
496	#endif	492	#endif
497		493
498	/*****************************************************************************/	494	/*****************************************************************************/
…		…
501	# include "ev_kqueue.c"	497	# include "ev_kqueue.c"
502	#endif	498	#endif
503	#if EV_USE_EPOLL	499	#if EV_USE_EPOLL
504	# include "ev_epoll.c"	500	# include "ev_epoll.c"
505	#endif	501	#endif
506	#if EV_USE_POLL	502	#if EV_USEV_POLL
507	# include "ev_poll.c"	503	# include "ev_poll.c"
508	#endif	504	#endif
509	#if EV_USE_SELECT	505	#if EV_USE_SELECT
510	# include "ev_select.c"	506	# include "ev_select.c"
511	#endif	507	#endif
…		…
520	ev_version_minor (void)	516	ev_version_minor (void)
521	{	517	{
522	return EV_VERSION_MINOR;	518	return EV_VERSION_MINOR;
523	}	519	}
524		520
525	/* return true if we are running with elevated privileges and ignore env variables */	521	/* return true if we are running with elevated privileges and should ignore env variables */
526	static int	522	static int
527	enable_secure ()	523	enable_secure (void)
528	{	524	{
		525	#ifdef WIN32
		526	return 0;
		527	#else
529	return getuid () != geteuid ()	528	return getuid () != geteuid ()
530	\|\| getgid () != getegid ();	529	\|\| getgid () != getegid ();
		530	#endif
531	}	531	}
532		532
		533	int
		534	ev_method (EV_P)
		535	{
		536	return method;
		537	}
		538
		539	int
533	int ev_init (int methods)	540	ev_init (EV_P_ int methods)
534	{	541	{
		542	#ifdef EV_MULTIPLICITY
		543	memset (loop, 0, sizeof (struct ev_loop));
		544	#endif
		545
535	if (!ev_method)	546	if (!method)
536	{	547	{
537	#if EV_USE_MONOTONIC	548	#if EV_USE_MONOTONIC
538	{	549	{
539	struct timespec ts;	550	struct timespec ts;
540	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	551	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
541	have_monotonic = 1;	552	have_monotonic = 1;
542	}	553	}
543	#endif	554	#endif
544		555
545	ev_now = ev_time ();	556	rt_now = ev_time ();
546	now = get_clock ();	557	mn_now = get_clock ();
547	now_floor = now;	558	now_floor = mn_now;
548	diff = ev_now - now;	559	diff = rt_now - mn_now;
549		560
550	if (pipe (sigpipe))	561	if (pipe (sigpipe))
551	return 0;	562	return 0;
552		563
553	if (methods == EVMETHOD_AUTO)	564	if (methods == EVMETHOD_AUTO)
554	if (!enable_secure () && getenv ("LIBEV_METHODS"))	565	if (!enable_secure () && getenv ("LIBmethodS"))
555	methods = atoi (getenv ("LIBEV_METHODS"));	566	methods = atoi (getenv ("LIBmethodS"));
556	else	567	else
557	methods = EVMETHOD_ANY;	568	methods = EVMETHOD_ANY;
558		569
559	ev_method = 0;	570	method = 0;
560	#if EV_USE_KQUEUE	571	#if EV_USE_KQUEUE
561	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	572	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
562	#endif	573	#endif
563	#if EV_USE_EPOLL	574	#if EV_USE_EPOLL
564	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	575	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
565	#endif	576	#endif
566	#if EV_USE_POLL	577	#if EV_USEV_POLL
567	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	578	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
568	#endif	579	#endif
569	#if EV_USE_SELECT	580	#if EV_USE_SELECT
570	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	581	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
571	#endif	582	#endif
572		583
573	if (ev_method)	584	if (method)
574	{	585	{
575	ev_watcher_init (&sigev, sigcb);	586	ev_watcher_init (&sigev, sigcb);
		587	ev_set_priority (&sigev, EV_MAXPRI);
576	siginit ();	588	siginit (EV_A);
577		589
578	#ifndef WIN32	590	#ifndef WIN32
579	ev_signal_init (&childev, childcb, SIGCHLD);	591	ev_signal_init (&childev, childcb, SIGCHLD);
		592	ev_set_priority (&childev, EV_MAXPRI);
580	ev_signal_start (&childev);	593	ev_signal_start (EV_A_ &childev);
		594	ev_unref (EV_A); /* child watcher should not keep loop alive */
581	#endif	595	#endif
582	}	596	}
583	}	597	}
584		598
585	return ev_method;	599	return method;
586	}	600	}
587		601
588	/*****************************************************************************/	602	/*****************************************************************************/
589		603
590	void	604	void
…		…
601		615
602	void	616	void
603	ev_fork_child (void)	617	ev_fork_child (void)
604	{	618	{
605	#if EV_USE_EPOLL	619	#if EV_USE_EPOLL
606	if (ev_method == EVMETHOD_EPOLL)	620	if (method == EVMETHOD_EPOLL)
607	epoll_postfork_child ();	621	epoll_postfork_child ();
608	#endif	622	#endif
609		623
610	ev_io_stop (&sigev);	624	ev_io_stop (&sigev);
611	close (sigpipe [0]);	625	close (sigpipe [0]);
…		…
615	}	629	}
616		630
617	/*****************************************************************************/	631	/*****************************************************************************/
618		632
619	static void	633	static void
620	call_pending (void)	634	call_pending (EV_P)
621	{	635	{
622	int pri;	636	int pri;
623		637
624	for (pri = NUMPRI; pri--; )	638	for (pri = NUMPRI; pri--; )
625	while (pendingcnt [pri])	639	while (pendingcnt [pri])
…		…
627	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	641	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
628		642
629	if (p->w)	643	if (p->w)
630	{	644	{
631	p->w->pending = 0;	645	p->w->pending = 0;
632	p->w->cb (p->w, p->events);	646	p->w->cb (EV_A_ p->w, p->events);
633	}	647	}
634	}	648	}
635	}	649	}
636		650
637	static void	651	static void
638	timers_reify (void)	652	timers_reify (EV_P)
639	{	653	{
640	while (timercnt && timers [0]->at <= now)	654	while (timercnt && timers [0]->at <= mn_now)
641	{	655	{
642	struct ev_timer *w = timers [0];	656	struct ev_timer *w = timers [0];
643		657
644	/* first reschedule or stop timer */	658	/* first reschedule or stop timer */
645	if (w->repeat)	659	if (w->repeat)
646	{	660	{
647	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	661	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
648	w->at = now + w->repeat;	662	w->at = mn_now + w->repeat;
649	downheap ((WT *)timers, timercnt, 0);	663	downheap ((WT *)timers, timercnt, 0);
650	}	664	}
651	else	665	else
652	ev_timer_stop (w); /* nonrepeating: stop timer */	666	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
653		667
654	event ((W)w, EV_TIMEOUT);	668	event ((W)w, EV_TIMEOUT);
655	}	669	}
656	}	670	}
657		671
658	static void	672	static void
659	periodics_reify (void)	673	periodics_reify (EV_P)
660	{	674	{
661	while (periodiccnt && periodics [0]->at <= ev_now)	675	while (periodiccnt && periodics [0]->at <= rt_now)
662	{	676	{
663	struct ev_periodic *w = periodics [0];	677	struct ev_periodic *w = periodics [0];
664		678
665	/* first reschedule or stop timer */	679	/* first reschedule or stop timer */
666	if (w->interval)	680	if (w->interval)
667	{	681	{
668	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	682	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;
669	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	683	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
670	downheap ((WT *)periodics, periodiccnt, 0);	684	downheap ((WT *)periodics, periodiccnt, 0);
671	}	685	}
672	else	686	else
673	ev_periodic_stop (w); /* nonrepeating: stop timer */	687	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
674		688
675	event ((W)w, EV_PERIODIC);	689	event (EV_A_ (W)w, EV_PERIODIC);
676	}	690	}
677	}	691	}
678		692
679	static void	693	static void
680	periodics_reschedule (ev_tstamp diff)	694	periodics_reschedule (EV_P_ ev_tstamp diff)
681	{	695	{
682	int i;	696	int i;
683		697
684	/* adjust periodics after time jump */	698	/* adjust periodics after time jump */
685	for (i = 0; i < periodiccnt; ++i)	699	for (i = 0; i < periodiccnt; ++i)
686	{	700	{
687	struct ev_periodic *w = periodics [i];	701	struct ev_periodic *w = periodics [i];
688		702
689	if (w->interval)	703	if (w->interval)
690	{	704	{
691	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	705	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
692		706
693	if (fabs (diff) >= 1e-4)	707	if (fabs (diff) >= 1e-4)
694	{	708	{
695	ev_periodic_stop (w);	709	ev_periodic_stop (EV_A_ w);
696	ev_periodic_start (w);	710	ev_periodic_start (EV_A_ w);
697		711
698	i = 0; /* restart loop, inefficient, but time jumps should be rare */	712	i = 0; /* restart loop, inefficient, but time jumps should be rare */
699	}	713	}
700	}	714	}
701	}	715	}
702	}	716	}
703		717
704	static int	718	inline int
705	time_update_monotonic (void)	719	time_update_monotonic (EV_P)
706	{	720	{
707	now = get_clock ();	721	mn_now = get_clock ();
708		722
709	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	723	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
710	{	724	{
711	ev_now = now + diff;	725	rt_now = mn_now + diff;
712	return 0;	726	return 0;
713	}	727	}
714	else	728	else
715	{	729	{
716	now_floor = now;	730	now_floor = mn_now;
717	ev_now = ev_time ();	731	rt_now = ev_time ();
718	return 1;	732	return 1;
719	}	733	}
720	}	734	}
721		735
722	static void	736	static void
723	time_update (void)	737	time_update (EV_P)
724	{	738	{
725	int i;	739	int i;
726		740
727	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
728	if (expect_true (have_monotonic))	742	if (expect_true (have_monotonic))
729	{	743	{
730	if (time_update_monotonic ())	744	if (time_update_monotonic (EV_A))
731	{	745	{
732	ev_tstamp odiff = diff;	746	ev_tstamp odiff = diff;
733		747
734	for (i = 4; --i; ) /* loop a few times, before making important decisions */	748	for (i = 4; --i; ) /* loop a few times, before making important decisions */
735	{	749	{
736	diff = ev_now - now;	750	diff = rt_now - mn_now;
737		751
738	if (fabs (odiff - diff) < MIN_TIMEJUMP)	752	if (fabs (odiff - diff) < MIN_TIMEJUMP)
739	return; /* all is well */	753	return; /* all is well */
740		754
741	ev_now = ev_time ();	755	rt_now = ev_time ();
742	now = get_clock ();	756	mn_now = get_clock ();
743	now_floor = now;	757	now_floor = mn_now;
744	}	758	}
745		759
746	periodics_reschedule (diff - odiff);	760	periodics_reschedule (EV_A_ diff - odiff);
747	/* no timer adjustment, as the monotonic clock doesn't jump */	761	/* no timer adjustment, as the monotonic clock doesn't jump */
748	}	762	}
749	}	763	}
750	else	764	else
751	#endif	765	#endif
752	{	766	{
753	ev_now = ev_time ();	767	rt_now = ev_time ();
754		768
755	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	769	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
756	{	770	{
757	periodics_reschedule (ev_now - now);	771	periodics_reschedule (EV_A_ rt_now - mn_now);
758		772
759	/* adjust timers. this is easy, as the offset is the same for all */	773	/* adjust timers. this is easy, as the offset is the same for all */
760	for (i = 0; i < timercnt; ++i)	774	for (i = 0; i < timercnt; ++i)
761	timers [i]->at += diff;	775	timers [i]->at += diff;
762	}	776	}
763		777
764	now = ev_now;	778	mn_now = rt_now;
765	}	779	}
766	}	780	}
767		781
768	int ev_loop_done;	782	void
		783	ev_ref (EV_P)
		784	{
		785	++activecnt;
		786	}
769		787
		788	void
		789	ev_unref (EV_P)
		790	{
		791	--activecnt;
		792	}
		793
		794	static int loop_done;
		795
		796	void
770	void ev_loop (int flags)	797	ev_loop (EV_P_ int flags)
771	{	798	{
772	double block;	799	double block;
773	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	800	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
774		801
775	do	802	do
776	{	803	{
777	/* queue check watchers (and execute them) */	804	/* queue check watchers (and execute them) */
778	if (expect_false (preparecnt))	805	if (expect_false (preparecnt))
779	{	806	{
780	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	807	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
781	call_pending ();	808	call_pending (EV_A);
782	}	809	}
783		810
784	/* update fd-related kernel structures */	811	/* update fd-related kernel structures */
785	fd_reify ();	812	fd_reify (EV_A);
786		813
787	/* calculate blocking time */	814	/* calculate blocking time */
788		815
789	/* we only need this for !monotonic clockor timers, but as we basically	816	/* we only need this for !monotonic clockor timers, but as we basically
790	always have timers, we just calculate it always */	817	always have timers, we just calculate it always */
791	#if EV_USE_MONOTONIC	818	#if EV_USE_MONOTONIC
792	if (expect_true (have_monotonic))	819	if (expect_true (have_monotonic))
793	time_update_monotonic ();	820	time_update_monotonic (EV_A);
794	else	821	else
795	#endif	822	#endif
796	{	823	{
797	ev_now = ev_time ();	824	rt_now = ev_time ();
798	now = ev_now;	825	mn_now = rt_now;
799	}	826	}
800		827
801	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	828	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
802	block = 0.;	829	block = 0.;
803	else	830	else
804	{	831	{
805	block = MAX_BLOCKTIME;	832	block = MAX_BLOCKTIME;
806		833
807	if (timercnt)	834	if (timercnt)
808	{	835	{
809	ev_tstamp to = timers [0]->at - now + method_fudge;	836	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
810	if (block > to) block = to;	837	if (block > to) block = to;
811	}	838	}
812		839
813	if (periodiccnt)	840	if (periodiccnt)
814	{	841	{
815	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	842	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
816	if (block > to) block = to;	843	if (block > to) block = to;
817	}	844	}
818		845
819	if (block < 0.) block = 0.;	846	if (block < 0.) block = 0.;
820	}	847	}
821		848
822	method_poll (block);	849	method_poll (EV_A_ block);
823		850
824	/* update ev_now, do magic */	851	/* update rt_now, do magic */
825	time_update ();	852	time_update (EV_A);
826		853
827	/* queue pending timers and reschedule them */	854	/* queue pending timers and reschedule them */
828	timers_reify (); /* relative timers called last */	855	timers_reify (EV_A); /* relative timers called last */
829	periodics_reify (); /* absolute timers called first */	856	periodics_reify (EV_A); /* absolute timers called first */
830		857
831	/* queue idle watchers unless io or timers are pending */	858	/* queue idle watchers unless io or timers are pending */
832	if (!pendingcnt)	859	if (!pendingcnt)
833	queue_events ((W *)idles, idlecnt, EV_IDLE);	860	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
834		861
835	/* queue check watchers, to be executed first */	862	/* queue check watchers, to be executed first */
836	if (checkcnt)	863	if (checkcnt)
837	queue_events ((W *)checks, checkcnt, EV_CHECK);	864	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
838		865
839	call_pending ();	866	call_pending (EV_A);
840	}	867	}
841	while (!ev_loop_done);	868	while (activecnt && !loop_done);
842		869
843	if (ev_loop_done != 2)	870	if (loop_done != 2)
844	ev_loop_done = 0;	871	loop_done = 0;
		872	}
		873
		874	void
		875	ev_unloop (EV_P_ int how)
		876	{
		877	loop_done = how;
845	}	878	}
846		879
847	/*****************************************************************************/	880	/*****************************************************************************/
848		881
849	static void	882	inline void
850	wlist_add (WL *head, WL elem)	883	wlist_add (WL *head, WL elem)
851	{	884	{
852	elem->next = *head;	885	elem->next = *head;
853	*head = elem;	886	*head = elem;
854	}	887	}
855		888
856	static void	889	inline void
857	wlist_del (WL *head, WL elem)	890	wlist_del (WL *head, WL elem)
858	{	891	{
859	while (*head)	892	while (*head)
860	{	893	{
861	if (*head == elem)	894	if (*head == elem)
…		…
866		899
867	head = &(*head)->next;	900	head = &(*head)->next;
868	}	901	}
869	}	902	}
870		903
871	static void	904	inline void
872	ev_clear_pending (W w)	905	ev_clear_pending (EV_P_ W w)
873	{	906	{
874	if (w->pending)	907	if (w->pending)
875	{	908	{
876	pendings [ABSPRI (w)][w->pending - 1].w = 0;	909	pendings [ABSPRI (w)][w->pending - 1].w = 0;
877	w->pending = 0;	910	w->pending = 0;
878	}	911	}
879	}	912	}
880		913
881	static void	914	inline void
882	ev_start (W w, int active)	915	ev_start (EV_P_ W w, int active)
883	{	916	{
884	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	917	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
885	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	918	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
886		919
887	w->active = active;	920	w->active = active;
		921	ev_ref (EV_A);
888	}	922	}
889		923
890	static void	924	inline void
891	ev_stop (W w)	925	ev_stop (EV_P_ W w)
892	{	926	{
		927	ev_unref (EV_A);
893	w->active = 0;	928	w->active = 0;
894	}	929	}
895		930
896	/*****************************************************************************/	931	/*****************************************************************************/
897		932
898	void	933	void
899	ev_io_start (struct ev_io *w)	934	ev_io_start (EV_P_ struct ev_io *w)
900	{	935	{
901	int fd = w->fd;	936	int fd = w->fd;
902		937
903	if (ev_is_active (w))	938	if (ev_is_active (w))
904	return;	939	return;
905		940
906	assert (("ev_io_start called with negative fd", fd >= 0));	941	assert (("ev_io_start called with negative fd", fd >= 0));
907		942
908	ev_start ((W)w, 1);	943	ev_start (EV_A_ (W)w, 1);
909	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	944	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
910	wlist_add ((WL *)&anfds[fd].head, (WL)w);	945	wlist_add ((WL *)&anfds[fd].head, (WL)w);
911		946
912	fd_change (fd);	947	fd_change (EV_A_ fd);
913	}	948	}
914		949
915	void	950	void
916	ev_io_stop (struct ev_io *w)	951	ev_io_stop (EV_P_ struct ev_io *w)
917	{	952	{
918	ev_clear_pending ((W)w);	953	ev_clear_pending (EV_A_ (W)w);
919	if (!ev_is_active (w))	954	if (!ev_is_active (w))
920	return;	955	return;
921		956
922	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	957	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
923	ev_stop ((W)w);	958	ev_stop (EV_A_ (W)w);
924		959
925	fd_change (w->fd);	960	fd_change (EV_A_ w->fd);
926	}	961	}
927		962
928	void	963	void
929	ev_timer_start (struct ev_timer *w)	964	ev_timer_start (EV_P_ struct ev_timer *w)
930	{	965	{
931	if (ev_is_active (w))	966	if (ev_is_active (w))
932	return;	967	return;
933		968
934	w->at += now;	969	w->at += mn_now;
935		970
936	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	971	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
937		972
938	ev_start ((W)w, ++timercnt);	973	ev_start (EV_A_ (W)w, ++timercnt);
939	array_needsize (timers, timermax, timercnt, );	974	array_needsize (timers, timermax, timercnt, );
940	timers [timercnt - 1] = w;	975	timers [timercnt - 1] = w;
941	upheap ((WT *)timers, timercnt - 1);	976	upheap ((WT *)timers, timercnt - 1);
942	}	977	}
943		978
944	void	979	void
945	ev_timer_stop (struct ev_timer *w)	980	ev_timer_stop (EV_P_ struct ev_timer *w)
946	{	981	{
947	ev_clear_pending ((W)w);	982	ev_clear_pending (EV_A_ (W)w);
948	if (!ev_is_active (w))	983	if (!ev_is_active (w))
949	return;	984	return;
950		985
951	if (w->active < timercnt--)	986	if (w->active < timercnt--)
952	{	987	{
…		…
954	downheap ((WT *)timers, timercnt, w->active - 1);	989	downheap ((WT *)timers, timercnt, w->active - 1);
955	}	990	}
956		991
957	w->at = w->repeat;	992	w->at = w->repeat;
958		993
959	ev_stop ((W)w);	994	ev_stop (EV_A_ (W)w);
960	}	995	}
961		996
962	void	997	void
963	ev_timer_again (struct ev_timer *w)	998	ev_timer_again (EV_P_ struct ev_timer *w)
964	{	999	{
965	if (ev_is_active (w))	1000	if (ev_is_active (w))
966	{	1001	{
967	if (w->repeat)	1002	if (w->repeat)
968	{	1003	{
969	w->at = now + w->repeat;	1004	w->at = mn_now + w->repeat;
970	downheap ((WT *)timers, timercnt, w->active - 1);	1005	downheap ((WT *)timers, timercnt, w->active - 1);
971	}	1006	}
972	else	1007	else
973	ev_timer_stop (w);	1008	ev_timer_stop (EV_A_ w);
974	}	1009	}
975	else if (w->repeat)	1010	else if (w->repeat)
976	ev_timer_start (w);	1011	ev_timer_start (EV_A_ w);
977	}	1012	}
978		1013
979	void	1014	void
980	ev_periodic_start (struct ev_periodic *w)	1015	ev_periodic_start (EV_P_ struct ev_periodic *w)
981	{	1016	{
982	if (ev_is_active (w))	1017	if (ev_is_active (w))
983	return;	1018	return;
984		1019
985	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1020	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
986		1021
987	/* this formula differs from the one in periodic_reify because we do not always round up */	1022	/* this formula differs from the one in periodic_reify because we do not always round up */
988	if (w->interval)	1023	if (w->interval)
989	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1024	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
990		1025
991	ev_start ((W)w, ++periodiccnt);	1026	ev_start (EV_A_ (W)w, ++periodiccnt);
992	array_needsize (periodics, periodicmax, periodiccnt, );	1027	array_needsize (periodics, periodicmax, periodiccnt, );
993	periodics [periodiccnt - 1] = w;	1028	periodics [periodiccnt - 1] = w;
994	upheap ((WT *)periodics, periodiccnt - 1);	1029	upheap ((WT *)periodics, periodiccnt - 1);
995	}	1030	}
996		1031
997	void	1032	void
998	ev_periodic_stop (struct ev_periodic *w)	1033	ev_periodic_stop (EV_P_ struct ev_periodic *w)
999	{	1034	{
1000	ev_clear_pending ((W)w);	1035	ev_clear_pending (EV_A_ (W)w);
1001	if (!ev_is_active (w))	1036	if (!ev_is_active (w))
1002	return;	1037	return;
1003		1038
1004	if (w->active < periodiccnt--)	1039	if (w->active < periodiccnt--)
1005	{	1040	{
1006	periodics [w->active - 1] = periodics [periodiccnt];	1041	periodics [w->active - 1] = periodics [periodiccnt];
1007	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1042	downheap ((WT *)periodics, periodiccnt, w->active - 1);
1008	}	1043	}
1009		1044
1010	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
1011	}	1046	}
1012		1047
		1048	#ifndef SA_RESTART
		1049	# define SA_RESTART 0
		1050	#endif
		1051
1013	void	1052	void
1014	ev_signal_start (struct ev_signal *w)	1053	ev_signal_start (EV_P_ struct ev_signal *w)
1015	{	1054	{
1016	if (ev_is_active (w))	1055	if (ev_is_active (w))
1017	return;	1056	return;
1018		1057
1019	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1058	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1020		1059
1021	ev_start ((W)w, 1);	1060	ev_start (EV_A_ (W)w, 1);
1022	array_needsize (signals, signalmax, w->signum, signals_init);	1061	array_needsize (signals, signalmax, w->signum, signals_init);
1023	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1062	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1024		1063
1025	if (!w->next)	1064	if (!w->next)
1026	{	1065	{
1027	struct sigaction sa;	1066	struct sigaction sa;
1028	sa.sa_handler = sighandler;	1067	sa.sa_handler = sighandler;
1029	sigfillset (&sa.sa_mask);	1068	sigfillset (&sa.sa_mask);
1030	sa.sa_flags = 0;	1069	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1031	sigaction (w->signum, &sa, 0);	1070	sigaction (w->signum, &sa, 0);
1032	}	1071	}
1033	}	1072	}
1034		1073
1035	void	1074	void
1036	ev_signal_stop (struct ev_signal *w)	1075	ev_signal_stop (EV_P_ struct ev_signal *w)
1037	{	1076	{
1038	ev_clear_pending ((W)w);	1077	ev_clear_pending (EV_A_ (W)w);
1039	if (!ev_is_active (w))	1078	if (!ev_is_active (w))
1040	return;	1079	return;
1041		1080
1042	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1081	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1043	ev_stop ((W)w);	1082	ev_stop (EV_A_ (W)w);
1044		1083
1045	if (!signals [w->signum - 1].head)	1084	if (!signals [w->signum - 1].head)
1046	signal (w->signum, SIG_DFL);	1085	signal (w->signum, SIG_DFL);
1047	}	1086	}
1048		1087
1049	void	1088	void
1050	ev_idle_start (struct ev_idle *w)	1089	ev_idle_start (EV_P_ struct ev_idle *w)
1051	{	1090	{
1052	if (ev_is_active (w))	1091	if (ev_is_active (w))
1053	return;	1092	return;
1054		1093
1055	ev_start ((W)w, ++idlecnt);	1094	ev_start (EV_A_ (W)w, ++idlecnt);
1056	array_needsize (idles, idlemax, idlecnt, );	1095	array_needsize (idles, idlemax, idlecnt, );
1057	idles [idlecnt - 1] = w;	1096	idles [idlecnt - 1] = w;
1058	}	1097	}
1059		1098
1060	void	1099	void
1061	ev_idle_stop (struct ev_idle *w)	1100	ev_idle_stop (EV_P_ struct ev_idle *w)
1062	{	1101	{
1063	ev_clear_pending ((W)w);	1102	ev_clear_pending (EV_A_ (W)w);
1064	if (ev_is_active (w))	1103	if (ev_is_active (w))
1065	return;	1104	return;
1066		1105
1067	idles [w->active - 1] = idles [--idlecnt];	1106	idles [w->active - 1] = idles [--idlecnt];
1068	ev_stop ((W)w);	1107	ev_stop (EV_A_ (W)w);
1069	}	1108	}
1070		1109
1071	void	1110	void
1072	ev_prepare_start (struct ev_prepare *w)	1111	ev_prepare_start (EV_P_ struct ev_prepare *w)
1073	{	1112	{
1074	if (ev_is_active (w))	1113	if (ev_is_active (w))
1075	return;	1114	return;
1076		1115
1077	ev_start ((W)w, ++preparecnt);	1116	ev_start (EV_A_ (W)w, ++preparecnt);
1078	array_needsize (prepares, preparemax, preparecnt, );	1117	array_needsize (prepares, preparemax, preparecnt, );
1079	prepares [preparecnt - 1] = w;	1118	prepares [preparecnt - 1] = w;
1080	}	1119	}
1081		1120
1082	void	1121	void
1083	ev_prepare_stop (struct ev_prepare *w)	1122	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1084	{	1123	{
1085	ev_clear_pending ((W)w);	1124	ev_clear_pending (EV_A_ (W)w);
1086	if (ev_is_active (w))	1125	if (ev_is_active (w))
1087	return;	1126	return;
1088		1127
1089	prepares [w->active - 1] = prepares [--preparecnt];	1128	prepares [w->active - 1] = prepares [--preparecnt];
1090	ev_stop ((W)w);	1129	ev_stop (EV_A_ (W)w);
1091	}	1130	}
1092		1131
1093	void	1132	void
1094	ev_check_start (struct ev_check *w)	1133	ev_check_start (EV_P_ struct ev_check *w)
1095	{	1134	{
1096	if (ev_is_active (w))	1135	if (ev_is_active (w))
1097	return;	1136	return;
1098		1137
1099	ev_start ((W)w, ++checkcnt);	1138	ev_start (EV_A_ (W)w, ++checkcnt);
1100	array_needsize (checks, checkmax, checkcnt, );	1139	array_needsize (checks, checkmax, checkcnt, );
1101	checks [checkcnt - 1] = w;	1140	checks [checkcnt - 1] = w;
1102	}	1141	}
1103		1142
1104	void	1143	void
1105	ev_check_stop (struct ev_check *w)	1144	ev_check_stop (EV_P_ struct ev_check *w)
1106	{	1145	{
1107	ev_clear_pending ((W)w);	1146	ev_clear_pending (EV_A_ (W)w);
1108	if (ev_is_active (w))	1147	if (ev_is_active (w))
1109	return;	1148	return;
1110		1149
1111	checks [w->active - 1] = checks [--checkcnt];	1150	checks [w->active - 1] = checks [--checkcnt];
1112	ev_stop ((W)w);	1151	ev_stop (EV_A_ (W)w);
1113	}	1152	}
1114		1153
1115	void	1154	void
1116	ev_child_start (struct ev_child *w)	1155	ev_child_start (EV_P_ struct ev_child *w)
1117	{	1156	{
1118	if (ev_is_active (w))	1157	if (ev_is_active (w))
1119	return;	1158	return;
1120		1159
1121	ev_start ((W)w, 1);	1160	ev_start (EV_A_ (W)w, 1);
1122	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1161	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1123	}	1162	}
1124		1163
1125	void	1164	void
1126	ev_child_stop (struct ev_child *w)	1165	ev_child_stop (EV_P_ struct ev_child *w)
1127	{	1166	{
1128	ev_clear_pending ((W)w);	1167	ev_clear_pending (EV_A_ (W)w);
1129	if (ev_is_active (w))	1168	if (ev_is_active (w))
1130	return;	1169	return;
1131		1170
1132	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1171	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1133	ev_stop ((W)w);	1172	ev_stop (EV_A_ (W)w);
1134	}	1173	}
1135		1174
1136	/*****************************************************************************/	1175	/*****************************************************************************/
1137		1176
1138	struct ev_once	1177	struct ev_once
…		…
1142	void (cb)(int revents, void arg);	1181	void (cb)(int revents, void arg);
1143	void *arg;	1182	void *arg;
1144	};	1183	};
1145		1184
1146	static void	1185	static void
1147	once_cb (struct ev_once *once, int revents)	1186	once_cb (EV_P_ struct ev_once *once, int revents)
1148	{	1187	{
1149	void (cb)(int revents, void arg) = once->cb;	1188	void (cb)(int revents, void arg) = once->cb;
1150	void *arg = once->arg;	1189	void *arg = once->arg;
1151		1190
1152	ev_io_stop (&once->io);	1191	ev_io_stop (EV_A_ &once->io);
1153	ev_timer_stop (&once->to);	1192	ev_timer_stop (EV_A_ &once->to);
1154	free (once);	1193	free (once);
1155		1194
1156	cb (revents, arg);	1195	cb (revents, arg);
1157	}	1196	}
1158		1197
1159	static void	1198	static void
1160	once_cb_io (struct ev_io *w, int revents)	1199	once_cb_io (EV_P_ struct ev_io *w, int revents)
1161	{	1200	{
1162	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1201	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1163	}	1202	}
1164		1203
1165	static void	1204	static void
1166	once_cb_to (struct ev_timer *w, int revents)	1205	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1167	{	1206	{
1168	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1207	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1169	}	1208	}
1170		1209
1171	void	1210	void
1172	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1211	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1173	{	1212	{
1174	struct ev_once *once = malloc (sizeof (struct ev_once));	1213	struct ev_once *once = malloc (sizeof (struct ev_once));
1175		1214
1176	if (!once)	1215	if (!once)
1177	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1216	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1182		1221
1183	ev_watcher_init (&once->io, once_cb_io);	1222	ev_watcher_init (&once->io, once_cb_io);
1184	if (fd >= 0)	1223	if (fd >= 0)
1185	{	1224	{
1186	ev_io_set (&once->io, fd, events);	1225	ev_io_set (&once->io, fd, events);
1187	ev_io_start (&once->io);	1226	ev_io_start (EV_A_ &once->io);
1188	}	1227	}
1189		1228
1190	ev_watcher_init (&once->to, once_cb_to);	1229	ev_watcher_init (&once->to, once_cb_to);
1191	if (timeout >= 0.)	1230	if (timeout >= 0.)
1192	{	1231	{
1193	ev_timer_set (&once->to, timeout, 0.);	1232	ev_timer_set (&once->to, timeout, 0.);
1194	ev_timer_start (&once->to);	1233	ev_timer_start (EV_A_ &once->to);
1195	}	1234	}
1196	}	1235	}
1197	}	1236	}
1198		1237
1199	/*****************************************************************************/	1238	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs. Revision 1.53 by root, Sat Nov 3 22:31:11 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs.
Revision 1.53 by root, Sat Nov 3 22:31:11 2007 UTC