[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 1.53 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>
…		…
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 */
117	ev_tstamp ev_now;
118	int ev_method;
119
120	static int have_monotonic; /* runtime */
121
122	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
123	static void (*method_modify)(int fd, int oev, int nev);
124	static void (*method_poll)(ev_tstamp timeout);
125
126	/*****************************************************************************/	118	/*****************************************************************************/
127		119
128	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
129	ev_time (void)	148	ev_time (void)
130	{	149	{
131	#if EV_USE_REALTIME	150	#if EV_USE_REALTIME
132	struct timespec ts;	151	struct timespec ts;
133	clock_gettime (CLOCK_REALTIME, &ts);	152	clock_gettime (CLOCK_REALTIME, &ts);
…		…
137	gettimeofday (&tv, 0);	156	gettimeofday (&tv, 0);
138	return tv.tv_sec + tv.tv_usec * 1e-6;	157	return tv.tv_sec + tv.tv_usec * 1e-6;
139	#endif	158	#endif
140	}	159	}
141		160
142	static ev_tstamp	161	inline ev_tstamp
143	get_clock (void)	162	get_clock (void)
144	{	163	{
145	#if EV_USE_MONOTONIC	164	#if EV_USE_MONOTONIC
146	if (expect_true (have_monotonic))	165	if (expect_true (have_monotonic))
147	{	166	{
…		…
150	return ts.tv_sec + ts.tv_nsec * 1e-9;	169	return ts.tv_sec + ts.tv_nsec * 1e-9;
151	}	170	}
152	#endif	171	#endif
153		172
154	return ev_time ();	173	return ev_time ();
		174	}
		175
		176	ev_tstamp
		177	ev_now (EV_P)
		178	{
		179	return rt_now;
155	}	180	}
156		181
157	#define array_roundsize(base,n) ((n) \| 4 & ~3)	182	#define array_roundsize(base,n) ((n) \| 4 & ~3)
158		183
159	#define array_needsize(base,cur,cnt,init) \	184	#define array_needsize(base,cur,cnt,init) \
…		…
171	cur = newcnt; \	196	cur = newcnt; \
172	}	197	}
173		198
174	/*****************************************************************************/	199	/*****************************************************************************/
175		200
176	typedef struct
177	{
178	struct ev_io *head;
179	unsigned char events;
180	unsigned char reify;
181	} ANFD;
182
183	static ANFD *anfds;
184	static int anfdmax;
185
186	static void	201	static void
187	anfds_init (ANFD *base, int count)	202	anfds_init (ANFD *base, int count)
188	{	203	{
189	while (count--)	204	while (count--)
190	{	205	{
…		…
194		209
195	++base;	210	++base;
196	}	211	}
197	}	212	}
198		213
199	typedef struct
200	{
201	W w;
202	int events;
203	} ANPENDING;
204
205	static ANPENDING *pendings [NUMPRI];
206	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
207
208	static void	214	static void
209	event (W w, int events)	215	event (EV_P_ W w, int events)
210	{	216	{
211	if (w->pending)	217	if (w->pending)
212	{	218	{
213	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	219	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
214	return;	220	return;
…		…
219	pendings [ABSPRI (w)][w->pending - 1].w = w;	225	pendings [ABSPRI (w)][w->pending - 1].w = w;
220	pendings [ABSPRI (w)][w->pending - 1].events = events;	226	pendings [ABSPRI (w)][w->pending - 1].events = events;
221	}	227	}
222		228
223	static void	229	static void
224	queue_events (W *events, int eventcnt, int type)	230	queue_events (EV_P_ W *events, int eventcnt, int type)
225	{	231	{
226	int i;	232	int i;
227		233
228	for (i = 0; i < eventcnt; ++i)	234	for (i = 0; i < eventcnt; ++i)
229	event (events [i], type);	235	event (EV_A_ events [i], type);
230	}	236	}
231		237
232	static void	238	static void
233	fd_event (int fd, int events)	239	fd_event (EV_P_ int fd, int events)
234	{	240	{
235	ANFD *anfd = anfds + fd;	241	ANFD *anfd = anfds + fd;
236	struct ev_io *w;	242	struct ev_io *w;
237		243
238	for (w = anfd->head; w; w = w->next)	244	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
239	{	245	{
240	int ev = w->events & events;	246	int ev = w->events & events;
241		247
242	if (ev)	248	if (ev)
243	event ((W)w, ev);	249	event (EV_A_ (W)w, ev);
244	}	250	}
245	}	251	}
246		252
247	/*****************************************************************************/	253	/*****************************************************************************/
248		254
249	static int *fdchanges;
250	static int fdchangemax, fdchangecnt;
251
252	static void	255	static void
253	fd_reify (void)	256	fd_reify (EV_P)
254	{	257	{
255	int i;	258	int i;
256		259
257	for (i = 0; i < fdchangecnt; ++i)	260	for (i = 0; i < fdchangecnt; ++i)
258	{	261	{
…		…
260	ANFD *anfd = anfds + fd;	263	ANFD *anfd = anfds + fd;
261	struct ev_io *w;	264	struct ev_io *w;
262		265
263	int events = 0;	266	int events = 0;
264		267
265	for (w = anfd->head; w; w = w->next)	268	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
266	events \|= w->events;	269	events \|= w->events;
267		270
268	anfd->reify = 0;	271	anfd->reify = 0;
269		272
270	if (anfd->events != events)	273	if (anfd->events != events)
271	{	274	{
272	method_modify (fd, anfd->events, events);	275	method_modify (EV_A_ fd, anfd->events, events);
273	anfd->events = events;	276	anfd->events = events;
274	}	277	}
275	}	278	}
276		279
277	fdchangecnt = 0;	280	fdchangecnt = 0;
278	}	281	}
279		282
280	static void	283	static void
281	fd_change (int fd)	284	fd_change (EV_P_ int fd)
282	{	285	{
283	if (anfds [fd].reify \|\| fdchangecnt < 0)	286	if (anfds [fd].reify \|\| fdchangecnt < 0)
284	return;	287	return;
285		288
286	anfds [fd].reify = 1;	289	anfds [fd].reify = 1;
…		…
289	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	292	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
290	fdchanges [fdchangecnt - 1] = fd;	293	fdchanges [fdchangecnt - 1] = fd;
291	}	294	}
292		295
293	static void	296	static void
294	fd_kill (int fd)	297	fd_kill (EV_P_ int fd)
295	{	298	{
296	struct ev_io *w;	299	struct ev_io *w;
297		300
298	printf ("killing fd %d\n", fd);//D
299	while ((w = anfds [fd].head))	301	while ((w = (struct ev_io *)anfds [fd].head))
300	{	302	{
301	ev_io_stop (w);	303	ev_io_stop (EV_A_ w);
302	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	304	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
303	}	305	}
304	}	306	}
305		307
306	/* called on EBADF to verify fds */	308	/* called on EBADF to verify fds */
307	static void	309	static void
308	fd_ebadf (void)	310	fd_ebadf (EV_P)
309	{	311	{
310	int fd;	312	int fd;
311		313
312	for (fd = 0; fd < anfdmax; ++fd)	314	for (fd = 0; fd < anfdmax; ++fd)
313	if (anfds [fd].events)	315	if (anfds [fd].events)
314	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
315	fd_kill (fd);	317	fd_kill (EV_A_ fd);
316	}	318	}
317		319
318	/* 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 */
319	static void	321	static void
320	fd_enomem (void)	322	fd_enomem (EV_P)
321	{	323	{
322	int fd = anfdmax;	324	int fd = anfdmax;
323		325
324	while (fd--)	326	while (fd--)
325	if (anfds [fd].events)	327	if (anfds [fd].events)
326	{	328	{
327	close (fd);	329	close (fd);
328	fd_kill (fd);	330	fd_kill (EV_A_ fd);
329	return;	331	return;
330	}	332	}
331	}	333	}
332		334
333	/*****************************************************************************/	335	/*****************************************************************************/
334
335	static struct ev_timer **timers;
336	static int timermax, timercnt;
337
338	static struct ev_periodic **periodics;
339	static int periodicmax, periodiccnt;
340		336
341	static void	337	static void
342	upheap (WT *timers, int k)	338	upheap (WT *timers, int k)
343	{	339	{
344	WT w = timers [k];	340	WT w = timers [k];
…		…
381		377
382	/*****************************************************************************/	378	/*****************************************************************************/
383		379
384	typedef struct	380	typedef struct
385	{	381	{
386	struct ev_signal *head;	382	struct ev_watcher_list *head;
387	sig_atomic_t volatile gotsig;	383	sig_atomic_t volatile gotsig;
388	} ANSIG;	384	} ANSIG;
389		385
390	static ANSIG *signals;	386	static ANSIG *signals;
391	static int signalmax;	387	static int signalmax;
392		388
393	static int sigpipe [2];	389	static int sigpipe [2];
394	static sig_atomic_t volatile gotsig;	390	static sig_atomic_t volatile gotsig;
395	static struct ev_io sigev;
396		391
397	static void	392	static void
398	signals_init (ANSIG *base, int count)	393	signals_init (ANSIG *base, int count)
399	{	394	{
400	while (count--)	395	while (count--)
…		…
411	{	406	{
412	signals [signum - 1].gotsig = 1;	407	signals [signum - 1].gotsig = 1;
413		408
414	if (!gotsig)	409	if (!gotsig)
415	{	410	{
		411	int old_errno = errno;
416	gotsig = 1;	412	gotsig = 1;
417	write (sigpipe [1], &signum, 1);	413	write (sigpipe [1], &signum, 1);
		414	errno = old_errno;
418	}	415	}
419	}	416	}
420		417
421	static void	418	static void
422	sigcb (struct ev_io *iow, int revents)	419	sigcb (EV_P_ struct ev_io *iow, int revents)
423	{	420	{
424	struct ev_signal *w;	421	struct ev_watcher_list *w;
425	int signum;	422	int signum;
426		423
427	read (sigpipe [0], &revents, 1);	424	read (sigpipe [0], &revents, 1);
428	gotsig = 0;	425	gotsig = 0;
429		426
…		…
431	if (signals [signum].gotsig)	428	if (signals [signum].gotsig)
432	{	429	{
433	signals [signum].gotsig = 0;	430	signals [signum].gotsig = 0;
434		431
435	for (w = signals [signum].head; w; w = w->next)	432	for (w = signals [signum].head; w; w = w->next)
436	event ((W)w, EV_SIGNAL);	433	event (EV_A_ (W)w, EV_SIGNAL);
437	}	434	}
438	}	435	}
439		436
440	static void	437	static void
441	siginit (void)	438	siginit (EV_P)
442	{	439	{
		440	#ifndef WIN32
443	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	441	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
444	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	442	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
445		443
446	/* rather than sort out wether we really need nb, set it */	444	/* rather than sort out wether we really need nb, set it */
447	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	445	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
448	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	446	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		447	#endif
449		448
450	ev_io_set (&sigev, sigpipe [0], EV_READ);	449	ev_io_set (&sigev, sigpipe [0], EV_READ);
451	ev_io_start (&sigev);	450	ev_io_start (&sigev);
		451	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	452	}
453		453
454	/*****************************************************************************/	454	/*****************************************************************************/
455		455
456	static struct ev_idle **idles;	456	#ifndef WIN32
457	static int idlemax, idlecnt;
458
459	static struct ev_prepare **prepares;
460	static int preparemax, preparecnt;
461
462	static struct ev_check **checks;
463	static int checkmax, checkcnt;
464
465	/*****************************************************************************/
466
467	static struct ev_child *childs [PID_HASHSIZE];
468	static struct ev_signal childev;
469		457
470	#ifndef WCONTINUED	458	#ifndef WCONTINUED
471	# define WCONTINUED 0	459	# define WCONTINUED 0
472	#endif	460	#endif
473		461
474	static void	462	static void
475	childcb (struct ev_signal *sw, int revents)	463	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
476	{	464	{
477	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	{
478	int pid, status;	480	int pid, status;
479		481
480	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	482	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
481	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	483	{
482	if (w->pid == pid \|\| !w->pid)	484	/* make sure we are called again until all childs have been reaped */
483	{	485	event (EV_A_ (W)sw, EV_SIGNAL);
484	w->status = status;	486
485	event ((W)w, EV_CHILD);	487	child_reap (EV_A_ sw, pid, pid, status);
486	}	488	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		489	}
487	}	490	}
		491
		492	#endif
488		493
489	/*****************************************************************************/	494	/*****************************************************************************/
490		495
491	#if EV_USE_KQUEUE	496	#if EV_USE_KQUEUE
492	# include "ev_kqueue.c"	497	# include "ev_kqueue.c"
493	#endif	498	#endif
494	#if EV_USE_EPOLL	499	#if EV_USE_EPOLL
495	# include "ev_epoll.c"	500	# include "ev_epoll.c"
496	#endif	501	#endif
497	#if EV_USE_POLL	502	#if EV_USEV_POLL
498	# include "ev_poll.c"	503	# include "ev_poll.c"
499	#endif	504	#endif
500	#if EV_USE_SELECT	505	#if EV_USE_SELECT
501	# include "ev_select.c"	506	# include "ev_select.c"
502	#endif	507	#endif
…		…
511	ev_version_minor (void)	516	ev_version_minor (void)
512	{	517	{
513	return EV_VERSION_MINOR;	518	return EV_VERSION_MINOR;
514	}	519	}
515		520
516	/* 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 */
517	static int	522	static int
518	enable_secure ()	523	enable_secure (void)
519	{	524	{
		525	#ifdef WIN32
		526	return 0;
		527	#else
520	return getuid () != geteuid ()	528	return getuid () != geteuid ()
521	\|\| getgid () != getegid ();	529	\|\| getgid () != getegid ();
		530	#endif
522	}	531	}
523		532
		533	int
		534	ev_method (EV_P)
		535	{
		536	return method;
		537	}
		538
		539	int
524	int ev_init (int methods)	540	ev_init (EV_P_ int methods)
525	{	541	{
		542	#ifdef EV_MULTIPLICITY
		543	memset (loop, 0, sizeof (struct ev_loop));
		544	#endif
		545
526	if (!ev_method)	546	if (!method)
527	{	547	{
528	#if EV_USE_MONOTONIC	548	#if EV_USE_MONOTONIC
529	{	549	{
530	struct timespec ts;	550	struct timespec ts;
531	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	551	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
532	have_monotonic = 1;	552	have_monotonic = 1;
533	}	553	}
534	#endif	554	#endif
535		555
536	ev_now = ev_time ();	556	rt_now = ev_time ();
537	now = get_clock ();	557	mn_now = get_clock ();
538	now_floor = now;	558	now_floor = mn_now;
539	diff = ev_now - now;	559	diff = rt_now - mn_now;
540		560
541	if (pipe (sigpipe))	561	if (pipe (sigpipe))
542	return 0;	562	return 0;
543		563
544	if (methods == EVMETHOD_AUTO)	564	if (methods == EVMETHOD_AUTO)
545	if (!enable_secure () && getenv ("LIBEV_METHODS"))	565	if (!enable_secure () && getenv ("LIBmethodS"))
546	methods = atoi (getenv ("LIBEV_METHODS"));	566	methods = atoi (getenv ("LIBmethodS"));
547	else	567	else
548	methods = EVMETHOD_ANY;	568	methods = EVMETHOD_ANY;
549		569
550	ev_method = 0;	570	method = 0;
551	#if EV_USE_KQUEUE	571	#if EV_USE_KQUEUE
552	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	572	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
553	#endif	573	#endif
554	#if EV_USE_EPOLL	574	#if EV_USE_EPOLL
555	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	575	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
556	#endif	576	#endif
557	#if EV_USE_POLL	577	#if EV_USEV_POLL
558	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	578	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
559	#endif	579	#endif
560	#if EV_USE_SELECT	580	#if EV_USE_SELECT
561	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	581	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
562	#endif	582	#endif
563		583
564	if (ev_method)	584	if (method)
565	{	585	{
566	ev_watcher_init (&sigev, sigcb);	586	ev_watcher_init (&sigev, sigcb);
		587	ev_set_priority (&sigev, EV_MAXPRI);
567	siginit ();	588	siginit (EV_A);
568		589
		590	#ifndef WIN32
569	ev_signal_init (&childev, childcb, SIGCHLD);	591	ev_signal_init (&childev, childcb, SIGCHLD);
		592	ev_set_priority (&childev, EV_MAXPRI);
570	ev_signal_start (&childev);	593	ev_signal_start (EV_A_ &childev);
		594	ev_unref (EV_A); /* child watcher should not keep loop alive */
		595	#endif
571	}	596	}
572	}	597	}
573		598
574	return ev_method;	599	return method;
575	}	600	}
576		601
577	/*****************************************************************************/	602	/*****************************************************************************/
578		603
579	void	604	void
…		…
590		615
591	void	616	void
592	ev_fork_child (void)	617	ev_fork_child (void)
593	{	618	{
594	#if EV_USE_EPOLL	619	#if EV_USE_EPOLL
595	if (ev_method == EVMETHOD_EPOLL)	620	if (method == EVMETHOD_EPOLL)
596	epoll_postfork_child ();	621	epoll_postfork_child ();
597	#endif	622	#endif
598		623
599	ev_io_stop (&sigev);	624	ev_io_stop (&sigev);
600	close (sigpipe [0]);	625	close (sigpipe [0]);
…		…
604	}	629	}
605		630
606	/*****************************************************************************/	631	/*****************************************************************************/
607		632
608	static void	633	static void
609	call_pending (void)	634	call_pending (EV_P)
610	{	635	{
611	int pri;	636	int pri;
612		637
613	for (pri = NUMPRI; pri--; )	638	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	639	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	641	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		642
618	if (p->w)	643	if (p->w)
619	{	644	{
620	p->w->pending = 0;	645	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	646	p->w->cb (EV_A_ p->w, p->events);
622	}	647	}
623	}	648	}
624	}	649	}
625		650
626	static void	651	static void
627	timers_reify (void)	652	timers_reify (EV_P)
628	{	653	{
629	while (timercnt && timers [0]->at <= now)	654	while (timercnt && timers [0]->at <= mn_now)
630	{	655	{
631	struct ev_timer *w = timers [0];	656	struct ev_timer *w = timers [0];
632		657
633	/* first reschedule or stop timer */	658	/* first reschedule or stop timer */
634	if (w->repeat)	659	if (w->repeat)
635	{	660	{
636	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.));
637	w->at = now + w->repeat;	662	w->at = mn_now + w->repeat;
638	downheap ((WT *)timers, timercnt, 0);	663	downheap ((WT *)timers, timercnt, 0);
639	}	664	}
640	else	665	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	666	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		667
643	event ((W)w, EV_TIMEOUT);	668	event ((W)w, EV_TIMEOUT);
644	}	669	}
645	}	670	}
646		671
647	static void	672	static void
648	periodics_reify (void)	673	periodics_reify (EV_P)
649	{	674	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	675	while (periodiccnt && periodics [0]->at <= rt_now)
651	{	676	{
652	struct ev_periodic *w = periodics [0];	677	struct ev_periodic *w = periodics [0];
653		678
654	/* first reschedule or stop timer */	679	/* first reschedule or stop timer */
655	if (w->interval)	680	if (w->interval)
656	{	681	{
657	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;
658	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));
659	downheap ((WT *)periodics, periodiccnt, 0);	684	downheap ((WT *)periodics, periodiccnt, 0);
660	}	685	}
661	else	686	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	687	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		688
664	event ((W)w, EV_PERIODIC);	689	event (EV_A_ (W)w, EV_PERIODIC);
665	}	690	}
666	}	691	}
667		692
668	static void	693	static void
669	periodics_reschedule (ev_tstamp diff)	694	periodics_reschedule (EV_P_ ev_tstamp diff)
670	{	695	{
671	int i;	696	int i;
672		697
673	/* adjust periodics after time jump */	698	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	699	for (i = 0; i < periodiccnt; ++i)
675	{	700	{
676	struct ev_periodic *w = periodics [i];	701	struct ev_periodic *w = periodics [i];
677		702
678	if (w->interval)	703	if (w->interval)
679	{	704	{
680	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;
681		706
682	if (fabs (diff) >= 1e-4)	707	if (fabs (diff) >= 1e-4)
683	{	708	{
684	ev_periodic_stop (w);	709	ev_periodic_stop (EV_A_ w);
685	ev_periodic_start (w);	710	ev_periodic_start (EV_A_ w);
686		711
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */	712	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}	713	}
689	}	714	}
690	}	715	}
691	}	716	}
692		717
693	static int	718	inline int
694	time_update_monotonic (void)	719	time_update_monotonic (EV_P)
695	{	720	{
696	now = get_clock ();	721	mn_now = get_clock ();
697		722
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	723	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	724	{
700	ev_now = now + diff;	725	rt_now = mn_now + diff;
701	return 0;	726	return 0;
702	}	727	}
703	else	728	else
704	{	729	{
705	now_floor = now;	730	now_floor = mn_now;
706	ev_now = ev_time ();	731	rt_now = ev_time ();
707	return 1;	732	return 1;
708	}	733	}
709	}	734	}
710		735
711	static void	736	static void
712	time_update (void)	737	time_update (EV_P)
713	{	738	{
714	int i;	739	int i;
715		740
716	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	742	if (expect_true (have_monotonic))
718	{	743	{
719	if (time_update_monotonic ())	744	if (time_update_monotonic (EV_A))
720	{	745	{
721	ev_tstamp odiff = diff;	746	ev_tstamp odiff = diff;
722		747
723	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 */
724	{	749	{
725	diff = ev_now - now;	750	diff = rt_now - mn_now;
726		751
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	752	if (fabs (odiff - diff) < MIN_TIMEJUMP)
728	return; /* all is well */	753	return; /* all is well */
729		754
730	ev_now = ev_time ();	755	rt_now = ev_time ();
731	now = get_clock ();	756	mn_now = get_clock ();
732	now_floor = now;	757	now_floor = mn_now;
733	}	758	}
734		759
735	periodics_reschedule (diff - odiff);	760	periodics_reschedule (EV_A_ diff - odiff);
736	/* no timer adjustment, as the monotonic clock doesn't jump */	761	/* no timer adjustment, as the monotonic clock doesn't jump */
737	}	762	}
738	}	763	}
739	else	764	else
740	#endif	765	#endif
741	{	766	{
742	ev_now = ev_time ();	767	rt_now = ev_time ();
743		768
744	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))
745	{	770	{
746	periodics_reschedule (ev_now - now);	771	periodics_reschedule (EV_A_ rt_now - mn_now);
747		772
748	/* 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 */
749	for (i = 0; i < timercnt; ++i)	774	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	775	timers [i]->at += diff;
751	}	776	}
752		777
753	now = ev_now;	778	mn_now = rt_now;
754	}	779	}
755	}	780	}
756		781
757	int ev_loop_done;	782	void
		783	ev_ref (EV_P)
		784	{
		785	++activecnt;
		786	}
758		787
		788	void
		789	ev_unref (EV_P)
		790	{
		791	--activecnt;
		792	}
		793
		794	static int loop_done;
		795
		796	void
759	void ev_loop (int flags)	797	ev_loop (EV_P_ int flags)
760	{	798	{
761	double block;	799	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	800	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
763		801
764	do	802	do
765	{	803	{
766	/* queue check watchers (and execute them) */	804	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	805	if (expect_false (preparecnt))
768	{	806	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	807	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	808	call_pending (EV_A);
771	}	809	}
772		810
773	/* update fd-related kernel structures */	811	/* update fd-related kernel structures */
774	fd_reify ();	812	fd_reify (EV_A);
775		813
776	/* calculate blocking time */	814	/* calculate blocking time */
777		815
778	/* 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
779	always have timers, we just calculate it always */	817	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	818	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	819	if (expect_true (have_monotonic))
782	time_update_monotonic ();	820	time_update_monotonic (EV_A);
783	else	821	else
784	#endif	822	#endif
785	{	823	{
786	ev_now = ev_time ();	824	rt_now = ev_time ();
787	now = ev_now;	825	mn_now = rt_now;
788	}	826	}
789		827
790	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	828	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
791	block = 0.;	829	block = 0.;
792	else	830	else
793	{	831	{
794	block = MAX_BLOCKTIME;	832	block = MAX_BLOCKTIME;
795		833
796	if (timercnt)	834	if (timercnt)
797	{	835	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	836	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
799	if (block > to) block = to;	837	if (block > to) block = to;
800	}	838	}
801		839
802	if (periodiccnt)	840	if (periodiccnt)
803	{	841	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	842	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
805	if (block > to) block = to;	843	if (block > to) block = to;
806	}	844	}
807		845
808	if (block < 0.) block = 0.;	846	if (block < 0.) block = 0.;
809	}	847	}
810		848
811	method_poll (block);	849	method_poll (EV_A_ block);
812		850
813	/* update ev_now, do magic */	851	/* update rt_now, do magic */
814	time_update ();	852	time_update (EV_A);
815		853
816	/* queue pending timers and reschedule them */	854	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	855	timers_reify (EV_A); /* relative timers called last */
818	periodics_reify (); /* absolute timers called first */	856	periodics_reify (EV_A); /* absolute timers called first */
819		857
820	/* queue idle watchers unless io or timers are pending */	858	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	859	if (!pendingcnt)
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	860	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		861
824	/* queue check watchers, to be executed first */	862	/* queue check watchers, to be executed first */
825	if (checkcnt)	863	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	864	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		865
828	call_pending ();	866	call_pending (EV_A);
829	}	867	}
830	while (!ev_loop_done);	868	while (activecnt && !loop_done);
831		869
832	if (ev_loop_done != 2)	870	if (loop_done != 2)
833	ev_loop_done = 0;	871	loop_done = 0;
		872	}
		873
		874	void
		875	ev_unloop (EV_P_ int how)
		876	{
		877	loop_done = how;
834	}	878	}
835		879
836	/*****************************************************************************/	880	/*****************************************************************************/
837		881
838	static void	882	inline void
839	wlist_add (WL *head, WL elem)	883	wlist_add (WL *head, WL elem)
840	{	884	{
841	elem->next = *head;	885	elem->next = *head;
842	*head = elem;	886	*head = elem;
843	}	887	}
844		888
845	static void	889	inline void
846	wlist_del (WL *head, WL elem)	890	wlist_del (WL *head, WL elem)
847	{	891	{
848	while (*head)	892	while (*head)
849	{	893	{
850	if (*head == elem)	894	if (*head == elem)
…		…
855		899
856	head = &(*head)->next;	900	head = &(*head)->next;
857	}	901	}
858	}	902	}
859		903
860	static void	904	inline void
861	ev_clear_pending (W w)	905	ev_clear_pending (EV_P_ W w)
862	{	906	{
863	if (w->pending)	907	if (w->pending)
864	{	908	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	909	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	910	w->pending = 0;
867	}	911	}
868	}	912	}
869		913
870	static void	914	inline void
871	ev_start (W w, int active)	915	ev_start (EV_P_ W w, int active)
872	{	916	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	917	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	918	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		919
876	w->active = active;	920	w->active = active;
		921	ev_ref (EV_A);
877	}	922	}
878		923
879	static void	924	inline void
880	ev_stop (W w)	925	ev_stop (EV_P_ W w)
881	{	926	{
		927	ev_unref (EV_A);
882	w->active = 0;	928	w->active = 0;
883	}	929	}
884		930
885	/*****************************************************************************/	931	/*****************************************************************************/
886		932
887	void	933	void
888	ev_io_start (struct ev_io *w)	934	ev_io_start (EV_P_ struct ev_io *w)
889	{	935	{
890	int fd = w->fd;	936	int fd = w->fd;
891		937
892	if (ev_is_active (w))	938	if (ev_is_active (w))
893	return;	939	return;
894		940
895	assert (("ev_io_start called with negative fd", fd >= 0));	941	assert (("ev_io_start called with negative fd", fd >= 0));
896		942
897	ev_start ((W)w, 1);	943	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	944	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	945	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		946
901	fd_change (fd);	947	fd_change (EV_A_ fd);
902	}	948	}
903		949
904	void	950	void
905	ev_io_stop (struct ev_io *w)	951	ev_io_stop (EV_P_ struct ev_io *w)
906	{	952	{
907	ev_clear_pending ((W)w);	953	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	954	if (!ev_is_active (w))
909	return;	955	return;
910		956
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	957	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	958	ev_stop (EV_A_ (W)w);
913		959
914	fd_change (w->fd);	960	fd_change (EV_A_ w->fd);
915	}	961	}
916		962
917	void	963	void
918	ev_timer_start (struct ev_timer *w)	964	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	965	{
920	if (ev_is_active (w))	966	if (ev_is_active (w))
921	return;	967	return;
922		968
923	w->at += now;	969	w->at += mn_now;
924		970
925	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.));
926		972
927	ev_start ((W)w, ++timercnt);	973	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	974	array_needsize (timers, timermax, timercnt, );
929	timers [timercnt - 1] = w;	975	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	976	upheap ((WT *)timers, timercnt - 1);
931	}	977	}
932		978
933	void	979	void
934	ev_timer_stop (struct ev_timer *w)	980	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	981	{
936	ev_clear_pending ((W)w);	982	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	983	if (!ev_is_active (w))
938	return;	984	return;
939		985
940	if (w->active < timercnt--)	986	if (w->active < timercnt--)
941	{	987	{
…		…
943	downheap ((WT *)timers, timercnt, w->active - 1);	989	downheap ((WT *)timers, timercnt, w->active - 1);
944	}	990	}
945		991
946	w->at = w->repeat;	992	w->at = w->repeat;
947		993
948	ev_stop ((W)w);	994	ev_stop (EV_A_ (W)w);
949	}	995	}
950		996
951	void	997	void
952	ev_timer_again (struct ev_timer *w)	998	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	999	{
954	if (ev_is_active (w))	1000	if (ev_is_active (w))
955	{	1001	{
956	if (w->repeat)	1002	if (w->repeat)
957	{	1003	{
958	w->at = now + w->repeat;	1004	w->at = mn_now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1005	downheap ((WT *)timers, timercnt, w->active - 1);
960	}	1006	}
961	else	1007	else
962	ev_timer_stop (w);	1008	ev_timer_stop (EV_A_ w);
963	}	1009	}
964	else if (w->repeat)	1010	else if (w->repeat)
965	ev_timer_start (w);	1011	ev_timer_start (EV_A_ w);
966	}	1012	}
967		1013
968	void	1014	void
969	ev_periodic_start (struct ev_periodic *w)	1015	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1016	{
971	if (ev_is_active (w))	1017	if (ev_is_active (w))
972	return;	1018	return;
973		1019
974	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.));
975		1021
976	/* 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 */
977	if (w->interval)	1023	if (w->interval)
978	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1024	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
979		1025
980	ev_start ((W)w, ++periodiccnt);	1026	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1027	array_needsize (periodics, periodicmax, periodiccnt, );
982	periodics [periodiccnt - 1] = w;	1028	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1029	upheap ((WT *)periodics, periodiccnt - 1);
984	}	1030	}
985		1031
986	void	1032	void
987	ev_periodic_stop (struct ev_periodic *w)	1033	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1034	{
989	ev_clear_pending ((W)w);	1035	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1036	if (!ev_is_active (w))
991	return;	1037	return;
992		1038
993	if (w->active < periodiccnt--)	1039	if (w->active < periodiccnt--)
994	{	1040	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1041	periodics [w->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1042	downheap ((WT *)periodics, periodiccnt, w->active - 1);
997	}	1043	}
998		1044
999	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
1000	}	1046	}
1001		1047
		1048	#ifndef SA_RESTART
		1049	# define SA_RESTART 0
		1050	#endif
		1051
1002	void	1052	void
1003	ev_signal_start (struct ev_signal *w)	1053	ev_signal_start (EV_P_ struct ev_signal *w)
1004	{	1054	{
1005	if (ev_is_active (w))	1055	if (ev_is_active (w))
1006	return;	1056	return;
1007		1057
1008	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));
1009		1059
1010	ev_start ((W)w, 1);	1060	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1061	array_needsize (signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1062	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1063
1014	if (!w->next)	1064	if (!w->next)
1015	{	1065	{
1016	struct sigaction sa;	1066	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1067	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1068	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1069	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1070	sigaction (w->signum, &sa, 0);
1021	}	1071	}
1022	}	1072	}
1023		1073
1024	void	1074	void
1025	ev_signal_stop (struct ev_signal *w)	1075	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1076	{
1027	ev_clear_pending ((W)w);	1077	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1078	if (!ev_is_active (w))
1029	return;	1079	return;
1030		1080
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1081	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1082	ev_stop (EV_A_ (W)w);
1033		1083
1034	if (!signals [w->signum - 1].head)	1084	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1085	signal (w->signum, SIG_DFL);
1036	}	1086	}
1037		1087
1038	void	1088	void
1039	ev_idle_start (struct ev_idle *w)	1089	ev_idle_start (EV_P_ struct ev_idle *w)
1040	{	1090	{
1041	if (ev_is_active (w))	1091	if (ev_is_active (w))
1042	return;	1092	return;
1043		1093
1044	ev_start ((W)w, ++idlecnt);	1094	ev_start (EV_A_ (W)w, ++idlecnt);
1045	array_needsize (idles, idlemax, idlecnt, );	1095	array_needsize (idles, idlemax, idlecnt, );
1046	idles [idlecnt - 1] = w;	1096	idles [idlecnt - 1] = w;
1047	}	1097	}
1048		1098
1049	void	1099	void
1050	ev_idle_stop (struct ev_idle *w)	1100	ev_idle_stop (EV_P_ struct ev_idle *w)
1051	{	1101	{
1052	ev_clear_pending ((W)w);	1102	ev_clear_pending (EV_A_ (W)w);
1053	if (ev_is_active (w))	1103	if (ev_is_active (w))
1054	return;	1104	return;
1055		1105
1056	idles [w->active - 1] = idles [--idlecnt];	1106	idles [w->active - 1] = idles [--idlecnt];
1057	ev_stop ((W)w);	1107	ev_stop (EV_A_ (W)w);
1058	}	1108	}
1059		1109
1060	void	1110	void
1061	ev_prepare_start (struct ev_prepare *w)	1111	ev_prepare_start (EV_P_ struct ev_prepare *w)
1062	{	1112	{
1063	if (ev_is_active (w))	1113	if (ev_is_active (w))
1064	return;	1114	return;
1065		1115
1066	ev_start ((W)w, ++preparecnt);	1116	ev_start (EV_A_ (W)w, ++preparecnt);
1067	array_needsize (prepares, preparemax, preparecnt, );	1117	array_needsize (prepares, preparemax, preparecnt, );
1068	prepares [preparecnt - 1] = w;	1118	prepares [preparecnt - 1] = w;
1069	}	1119	}
1070		1120
1071	void	1121	void
1072	ev_prepare_stop (struct ev_prepare *w)	1122	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1073	{	1123	{
1074	ev_clear_pending ((W)w);	1124	ev_clear_pending (EV_A_ (W)w);
1075	if (ev_is_active (w))	1125	if (ev_is_active (w))
1076	return;	1126	return;
1077		1127
1078	prepares [w->active - 1] = prepares [--preparecnt];	1128	prepares [w->active - 1] = prepares [--preparecnt];
1079	ev_stop ((W)w);	1129	ev_stop (EV_A_ (W)w);
1080	}	1130	}
1081		1131
1082	void	1132	void
1083	ev_check_start (struct ev_check *w)	1133	ev_check_start (EV_P_ struct ev_check *w)
1084	{	1134	{
1085	if (ev_is_active (w))	1135	if (ev_is_active (w))
1086	return;	1136	return;
1087		1137
1088	ev_start ((W)w, ++checkcnt);	1138	ev_start (EV_A_ (W)w, ++checkcnt);
1089	array_needsize (checks, checkmax, checkcnt, );	1139	array_needsize (checks, checkmax, checkcnt, );
1090	checks [checkcnt - 1] = w;	1140	checks [checkcnt - 1] = w;
1091	}	1141	}
1092		1142
1093	void	1143	void
1094	ev_check_stop (struct ev_check *w)	1144	ev_check_stop (EV_P_ struct ev_check *w)
1095	{	1145	{
1096	ev_clear_pending ((W)w);	1146	ev_clear_pending (EV_A_ (W)w);
1097	if (ev_is_active (w))	1147	if (ev_is_active (w))
1098	return;	1148	return;
1099		1149
1100	checks [w->active - 1] = checks [--checkcnt];	1150	checks [w->active - 1] = checks [--checkcnt];
1101	ev_stop ((W)w);	1151	ev_stop (EV_A_ (W)w);
1102	}	1152	}
1103		1153
1104	void	1154	void
1105	ev_child_start (struct ev_child *w)	1155	ev_child_start (EV_P_ struct ev_child *w)
1106	{	1156	{
1107	if (ev_is_active (w))	1157	if (ev_is_active (w))
1108	return;	1158	return;
1109		1159
1110	ev_start ((W)w, 1);	1160	ev_start (EV_A_ (W)w, 1);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1161	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}	1162	}
1113		1163
1114	void	1164	void
1115	ev_child_stop (struct ev_child *w)	1165	ev_child_stop (EV_P_ struct ev_child *w)
1116	{	1166	{
1117	ev_clear_pending ((W)w);	1167	ev_clear_pending (EV_A_ (W)w);
1118	if (ev_is_active (w))	1168	if (ev_is_active (w))
1119	return;	1169	return;
1120		1170
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1171	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1172	ev_stop (EV_A_ (W)w);
1123	}	1173	}
1124		1174
1125	/*****************************************************************************/	1175	/*****************************************************************************/
1126		1176
1127	struct ev_once	1177	struct ev_once
…		…
1131	void (cb)(int revents, void arg);	1181	void (cb)(int revents, void arg);
1132	void *arg;	1182	void *arg;
1133	};	1183	};
1134		1184
1135	static void	1185	static void
1136	once_cb (struct ev_once *once, int revents)	1186	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1187	{
1138	void (cb)(int revents, void arg) = once->cb;	1188	void (cb)(int revents, void arg) = once->cb;
1139	void *arg = once->arg;	1189	void *arg = once->arg;
1140		1190
1141	ev_io_stop (&once->io);	1191	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1192	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1193	free (once);
1144		1194
1145	cb (revents, arg);	1195	cb (revents, arg);
1146	}	1196	}
1147		1197
1148	static void	1198	static void
1149	once_cb_io (struct ev_io *w, int revents)	1199	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1200	{
1151	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);
1152	}	1202	}
1153		1203
1154	static void	1204	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1205	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1206	{
1157	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);
1158	}	1208	}
1159		1209
1160	void	1210	void
1161	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)
1162	{	1212	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1213	struct ev_once *once = malloc (sizeof (struct ev_once));
1164		1214
1165	if (!once)	1215	if (!once)
1166	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1216	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1171		1221
1172	ev_watcher_init (&once->io, once_cb_io);	1222	ev_watcher_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1223	if (fd >= 0)
1174	{	1224	{
1175	ev_io_set (&once->io, fd, events);	1225	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1226	ev_io_start (EV_A_ &once->io);
1177	}	1227	}
1178		1228
1179	ev_watcher_init (&once->to, once_cb_to);	1229	ev_watcher_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1230	if (timeout >= 0.)
1181	{	1231	{
1182	ev_timer_set (&once->to, timeout, 0.);	1232	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1233	ev_timer_start (EV_A_ &once->to);
1184	}	1234	}
1185	}	1235	}
1186	}	1236	}
1187		1237
1188	/*****************************************************************************/	1238	/*****************************************************************************/

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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 1.53 by root, Sat Nov 3 22:31:11 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 1.53 by root, Sat Nov 3 22:31:11 2007 UTC