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

Comparing libev/ev.c (file contents):
Revision 1.42 by root, Fri Nov 2 20:05:05 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
		69	#endif
		70
		71	#ifndef EV_USE_KQUEUE
		72	# define EV_USE_KQUEUE 0
67	#endif	73	#endif
68		74
69	#ifndef EV_USE_REALTIME	75	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	76	# define EV_USE_REALTIME 1
71	#endif	77	#endif
…		…
107		113
108	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
109	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
110	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
111		117
112	static ev_tstamp now_floor, now, diff; /* monotonic clock */
113	ev_tstamp ev_now;
114	int ev_method;
115
116	static int have_monotonic; /* runtime */
117
118	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
119	static void (*method_modify)(int fd, int oev, int nev);
120	static void (*method_poll)(ev_tstamp timeout);
121
122	/*****************************************************************************/	118	/*****************************************************************************/
123		119
124	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
125	ev_time (void)	148	ev_time (void)
126	{	149	{
127	#if EV_USE_REALTIME	150	#if EV_USE_REALTIME
128	struct timespec ts;	151	struct timespec ts;
129	clock_gettime (CLOCK_REALTIME, &ts);	152	clock_gettime (CLOCK_REALTIME, &ts);
…		…
133	gettimeofday (&tv, 0);	156	gettimeofday (&tv, 0);
134	return tv.tv_sec + tv.tv_usec * 1e-6;	157	return tv.tv_sec + tv.tv_usec * 1e-6;
135	#endif	158	#endif
136	}	159	}
137		160
138	static ev_tstamp	161	inline ev_tstamp
139	get_clock (void)	162	get_clock (void)
140	{	163	{
141	#if EV_USE_MONOTONIC	164	#if EV_USE_MONOTONIC
142	if (expect_true (have_monotonic))	165	if (expect_true (have_monotonic))
143	{	166	{
…		…
146	return ts.tv_sec + ts.tv_nsec * 1e-9;	169	return ts.tv_sec + ts.tv_nsec * 1e-9;
147	}	170	}
148	#endif	171	#endif
149		172
150	return ev_time ();	173	return ev_time ();
		174	}
		175
		176	ev_tstamp
		177	ev_now (EV_P)
		178	{
		179	return rt_now;
151	}	180	}
152		181
153	#define array_roundsize(base,n) ((n) \| 4 & ~3)	182	#define array_roundsize(base,n) ((n) \| 4 & ~3)
154		183
155	#define array_needsize(base,cur,cnt,init) \	184	#define array_needsize(base,cur,cnt,init) \
…		…
167	cur = newcnt; \	196	cur = newcnt; \
168	}	197	}
169		198
170	/*****************************************************************************/	199	/*****************************************************************************/
171		200
172	typedef struct
173	{
174	struct ev_io *head;
175	unsigned char events;
176	unsigned char reify;
177	} ANFD;
178
179	static ANFD *anfds;
180	static int anfdmax;
181
182	static void	201	static void
183	anfds_init (ANFD *base, int count)	202	anfds_init (ANFD *base, int count)
184	{	203	{
185	while (count--)	204	while (count--)
186	{	205	{
…		…
190		209
191	++base;	210	++base;
192	}	211	}
193	}	212	}
194		213
195	typedef struct
196	{
197	W w;
198	int events;
199	} ANPENDING;
200
201	static ANPENDING *pendings [NUMPRI];
202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
203
204	static void	214	static void
205	event (W w, int events)	215	event (EV_P_ W w, int events)
206	{	216	{
207	if (w->pending)	217	if (w->pending)
208	{	218	{
209	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	219	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
210	return;	220	return;
…		…
215	pendings [ABSPRI (w)][w->pending - 1].w = w;	225	pendings [ABSPRI (w)][w->pending - 1].w = w;
216	pendings [ABSPRI (w)][w->pending - 1].events = events;	226	pendings [ABSPRI (w)][w->pending - 1].events = events;
217	}	227	}
218		228
219	static void	229	static void
220	queue_events (W *events, int eventcnt, int type)	230	queue_events (EV_P_ W *events, int eventcnt, int type)
221	{	231	{
222	int i;	232	int i;
223		233
224	for (i = 0; i < eventcnt; ++i)	234	for (i = 0; i < eventcnt; ++i)
225	event (events [i], type);	235	event (EV_A_ events [i], type);
226	}	236	}
227		237
228	static void	238	static void
229	fd_event (int fd, int events)	239	fd_event (EV_P_ int fd, int events)
230	{	240	{
231	ANFD *anfd = anfds + fd;	241	ANFD *anfd = anfds + fd;
232	struct ev_io *w;	242	struct ev_io *w;
233		243
234	for (w = anfd->head; w; w = w->next)	244	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
235	{	245	{
236	int ev = w->events & events;	246	int ev = w->events & events;
237		247
238	if (ev)	248	if (ev)
239	event ((W)w, ev);	249	event (EV_A_ (W)w, ev);
240	}	250	}
241	}	251	}
242		252
243	/*****************************************************************************/	253	/*****************************************************************************/
244		254
245	static int *fdchanges;
246	static int fdchangemax, fdchangecnt;
247
248	static void	255	static void
249	fd_reify (void)	256	fd_reify (EV_P)
250	{	257	{
251	int i;	258	int i;
252		259
253	for (i = 0; i < fdchangecnt; ++i)	260	for (i = 0; i < fdchangecnt; ++i)
254	{	261	{
…		…
256	ANFD *anfd = anfds + fd;	263	ANFD *anfd = anfds + fd;
257	struct ev_io *w;	264	struct ev_io *w;
258		265
259	int events = 0;	266	int events = 0;
260		267
261	for (w = anfd->head; w; w = w->next)	268	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
262	events \|= w->events;	269	events \|= w->events;
263		270
264	anfd->reify = 0;	271	anfd->reify = 0;
265		272
266	if (anfd->events != events)	273	if (anfd->events != events)
267	{	274	{
268	method_modify (fd, anfd->events, events);	275	method_modify (EV_A_ fd, anfd->events, events);
269	anfd->events = events;	276	anfd->events = events;
270	}	277	}
271	}	278	}
272		279
273	fdchangecnt = 0;	280	fdchangecnt = 0;
274	}	281	}
275		282
276	static void	283	static void
277	fd_change (int fd)	284	fd_change (EV_P_ int fd)
278	{	285	{
279	if (anfds [fd].reify \|\| fdchangecnt < 0)	286	if (anfds [fd].reify \|\| fdchangecnt < 0)
280	return;	287	return;
281		288
282	anfds [fd].reify = 1;	289	anfds [fd].reify = 1;
…		…
285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	292	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
286	fdchanges [fdchangecnt - 1] = fd;	293	fdchanges [fdchangecnt - 1] = fd;
287	}	294	}
288		295
289	static void	296	static void
290	fd_kill (int fd)	297	fd_kill (EV_P_ int fd)
291	{	298	{
292	struct ev_io *w;	299	struct ev_io *w;
293		300
294	printf ("killing fd %d\n", fd);//D
295	while ((w = anfds [fd].head))	301	while ((w = (struct ev_io *)anfds [fd].head))
296	{	302	{
297	ev_io_stop (w);	303	ev_io_stop (EV_A_ w);
298	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	304	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
299	}	305	}
300	}	306	}
301		307
302	/* called on EBADF to verify fds */	308	/* called on EBADF to verify fds */
303	static void	309	static void
304	fd_ebadf (void)	310	fd_ebadf (EV_P)
305	{	311	{
306	int fd;	312	int fd;
307		313
308	for (fd = 0; fd < anfdmax; ++fd)	314	for (fd = 0; fd < anfdmax; ++fd)
309	if (anfds [fd].events)	315	if (anfds [fd].events)
310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
311	fd_kill (fd);	317	fd_kill (EV_A_ fd);
312	}	318	}
313		319
314	/* 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 */
315	static void	321	static void
316	fd_enomem (void)	322	fd_enomem (EV_P)
317	{	323	{
318	int fd = anfdmax;	324	int fd = anfdmax;
319		325
320	while (fd--)	326	while (fd--)
321	if (anfds [fd].events)	327	if (anfds [fd].events)
322	{	328	{
323	close (fd);	329	close (fd);
324	fd_kill (fd);	330	fd_kill (EV_A_ fd);
325	return;	331	return;
326	}	332	}
327	}	333	}
328		334
329	/*****************************************************************************/	335	/*****************************************************************************/
330
331	static struct ev_timer **timers;
332	static int timermax, timercnt;
333
334	static struct ev_periodic **periodics;
335	static int periodicmax, periodiccnt;
336		336
337	static void	337	static void
338	upheap (WT *timers, int k)	338	upheap (WT *timers, int k)
339	{	339	{
340	WT w = timers [k];	340	WT w = timers [k];
…		…
377		377
378	/*****************************************************************************/	378	/*****************************************************************************/
379		379
380	typedef struct	380	typedef struct
381	{	381	{
382	struct ev_signal *head;	382	struct ev_watcher_list *head;
383	sig_atomic_t volatile gotsig;	383	sig_atomic_t volatile gotsig;
384	} ANSIG;	384	} ANSIG;
385		385
386	static ANSIG *signals;	386	static ANSIG *signals;
387	static int signalmax;	387	static int signalmax;
388		388
389	static int sigpipe [2];	389	static int sigpipe [2];
390	static sig_atomic_t volatile gotsig;	390	static sig_atomic_t volatile gotsig;
391	static struct ev_io sigev;
392		391
393	static void	392	static void
394	signals_init (ANSIG *base, int count)	393	signals_init (ANSIG *base, int count)
395	{	394	{
396	while (count--)	395	while (count--)
…		…
407	{	406	{
408	signals [signum - 1].gotsig = 1;	407	signals [signum - 1].gotsig = 1;
409		408
410	if (!gotsig)	409	if (!gotsig)
411	{	410	{
		411	int old_errno = errno;
412	gotsig = 1;	412	gotsig = 1;
413	write (sigpipe [1], &signum, 1);	413	write (sigpipe [1], &signum, 1);
		414	errno = old_errno;
414	}	415	}
415	}	416	}
416		417
417	static void	418	static void
418	sigcb (struct ev_io *iow, int revents)	419	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	420	{
420	struct ev_signal *w;	421	struct ev_watcher_list *w;
421	int signum;	422	int signum;
422		423
423	read (sigpipe [0], &revents, 1);	424	read (sigpipe [0], &revents, 1);
424	gotsig = 0;	425	gotsig = 0;
425		426
…		…
427	if (signals [signum].gotsig)	428	if (signals [signum].gotsig)
428	{	429	{
429	signals [signum].gotsig = 0;	430	signals [signum].gotsig = 0;
430		431
431	for (w = signals [signum].head; w; w = w->next)	432	for (w = signals [signum].head; w; w = w->next)
432	event ((W)w, EV_SIGNAL);	433	event (EV_A_ (W)w, EV_SIGNAL);
433	}	434	}
434	}	435	}
435		436
436	static void	437	static void
437	siginit (void)	438	siginit (EV_P)
438	{	439	{
		440	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	441	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	442	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		443
442	/* rather than sort out wether we really need nb, set it */	444	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	445	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	446	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		447	#endif
445		448
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	449	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	450	ev_io_start (&sigev);
		451	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	452	}
449		453
450	/*****************************************************************************/	454	/*****************************************************************************/
451		455
452	static struct ev_idle **idles;	456	#ifndef WIN32
453	static int idlemax, idlecnt;
454
455	static struct ev_prepare **prepares;
456	static int preparemax, preparecnt;
457
458	static struct ev_check **checks;
459	static int checkmax, checkcnt;
460
461	/*****************************************************************************/
462
463	static struct ev_child *childs [PID_HASHSIZE];
464	static struct ev_signal childev;
465		457
466	#ifndef WCONTINUED	458	#ifndef WCONTINUED
467	# define WCONTINUED 0	459	# define WCONTINUED 0
468	#endif	460	#endif
469		461
470	static void	462	static void
471	childcb (struct ev_signal *sw, int revents)	463	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	464	{
473	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	{
474	int pid, status;	480	int pid, status;
475		481
476	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	482	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	483	{
478	if (w->pid == pid \|\| !w->pid)	484	/* make sure we are called again until all childs have been reaped */
479	{	485	event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	486
481	event ((W)w, EV_CHILD);	487	child_reap (EV_A_ sw, pid, pid, status);
482	}	488	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		489	}
483	}	490	}
		491
		492	#endif
484		493
485	/*****************************************************************************/	494	/*****************************************************************************/
486		495
		496	#if EV_USE_KQUEUE
		497	# include "ev_kqueue.c"
		498	#endif
487	#if EV_USE_EPOLL	499	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	500	# include "ev_epoll.c"
489	#endif	501	#endif
490	#if EV_USE_POLL	502	#if EV_USEV_POLL
491	# include "ev_poll.c"	503	# include "ev_poll.c"
492	#endif	504	#endif
493	#if EV_USE_SELECT	505	#if EV_USE_SELECT
494	# include "ev_select.c"	506	# include "ev_select.c"
495	#endif	507	#endif
…		…
504	ev_version_minor (void)	516	ev_version_minor (void)
505	{	517	{
506	return EV_VERSION_MINOR;	518	return EV_VERSION_MINOR;
507	}	519	}
508		520
509	/* 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 */
510	static int	522	static int
511	enable_secure ()	523	enable_secure (void)
512	{	524	{
		525	#ifdef WIN32
		526	return 0;
		527	#else
513	return getuid () != geteuid ()	528	return getuid () != geteuid ()
514	\|\| getgid () != getegid ();	529	\|\| getgid () != getegid ();
		530	#endif
515	}	531	}
516		532
		533	int
		534	ev_method (EV_P)
		535	{
		536	return method;
		537	}
		538
		539	int
517	int ev_init (int methods)	540	ev_init (EV_P_ int methods)
518	{	541	{
		542	#ifdef EV_MULTIPLICITY
		543	memset (loop, 0, sizeof (struct ev_loop));
		544	#endif
		545
519	if (!ev_method)	546	if (!method)
520	{	547	{
521	#if EV_USE_MONOTONIC	548	#if EV_USE_MONOTONIC
522	{	549	{
523	struct timespec ts;	550	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	551	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	552	have_monotonic = 1;
526	}	553	}
527	#endif	554	#endif
528		555
529	ev_now = ev_time ();	556	rt_now = ev_time ();
530	now = get_clock ();	557	mn_now = get_clock ();
531	now_floor = now;	558	now_floor = mn_now;
532	diff = ev_now - now;	559	diff = rt_now - mn_now;
533		560
534	if (pipe (sigpipe))	561	if (pipe (sigpipe))
535	return 0;	562	return 0;
536		563
537	if (methods == EVMETHOD_AUTO)	564	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	565	if (!enable_secure () && getenv ("LIBmethodS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	566	methods = atoi (getenv ("LIBmethodS"));
540	else	567	else
541	methods = EVMETHOD_ANY;	568	methods = EVMETHOD_ANY;
542		569
543	ev_method = 0;	570	method = 0;
		571	#if EV_USE_KQUEUE
		572	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		573	#endif
544	#if EV_USE_EPOLL	574	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	575	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	576	#endif
547	#if EV_USE_POLL	577	#if EV_USEV_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	578	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	579	#endif
550	#if EV_USE_SELECT	580	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	581	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	582	#endif
553		583
554	if (ev_method)	584	if (method)
555	{	585	{
556	ev_watcher_init (&sigev, sigcb);	586	ev_watcher_init (&sigev, sigcb);
		587	ev_set_priority (&sigev, EV_MAXPRI);
557	siginit ();	588	siginit (EV_A);
558		589
		590	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	591	ev_signal_init (&childev, childcb, SIGCHLD);
		592	ev_set_priority (&childev, EV_MAXPRI);
560	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
561	}	596	}
562	}	597	}
563		598
564	return ev_method;	599	return method;
565	}	600	}
566		601
567	/*****************************************************************************/	602	/*****************************************************************************/
568		603
569	void	604	void
…		…
580		615
581	void	616	void
582	ev_fork_child (void)	617	ev_fork_child (void)
583	{	618	{
584	#if EV_USE_EPOLL	619	#if EV_USE_EPOLL
585	if (ev_method == EVMETHOD_EPOLL)	620	if (method == EVMETHOD_EPOLL)
586	epoll_postfork_child ();	621	epoll_postfork_child ();
587	#endif	622	#endif
588		623
589	ev_io_stop (&sigev);	624	ev_io_stop (&sigev);
590	close (sigpipe [0]);	625	close (sigpipe [0]);
…		…
594	}	629	}
595		630
596	/*****************************************************************************/	631	/*****************************************************************************/
597		632
598	static void	633	static void
599	call_pending (void)	634	call_pending (EV_P)
600	{	635	{
601	int pri;	636	int pri;
602		637
603	for (pri = NUMPRI; pri--; )	638	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	639	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	641	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		642
608	if (p->w)	643	if (p->w)
609	{	644	{
610	p->w->pending = 0;	645	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	646	p->w->cb (EV_A_ p->w, p->events);
612	}	647	}
613	}	648	}
614	}	649	}
615		650
616	static void	651	static void
617	timers_reify (void)	652	timers_reify (EV_P)
618	{	653	{
619	while (timercnt && timers [0]->at <= now)	654	while (timercnt && timers [0]->at <= mn_now)
620	{	655	{
621	struct ev_timer *w = timers [0];	656	struct ev_timer *w = timers [0];
622		657
623	/* first reschedule or stop timer */	658	/* first reschedule or stop timer */
624	if (w->repeat)	659	if (w->repeat)
625	{	660	{
626	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.));
627	w->at = now + w->repeat;	662	w->at = mn_now + w->repeat;
628	downheap ((WT *)timers, timercnt, 0);	663	downheap ((WT *)timers, timercnt, 0);
629	}	664	}
630	else	665	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	666	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		667
633	event ((W)w, EV_TIMEOUT);	668	event ((W)w, EV_TIMEOUT);
634	}	669	}
635	}	670	}
636		671
637	static void	672	static void
638	periodics_reify (void)	673	periodics_reify (EV_P)
639	{	674	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	675	while (periodiccnt && periodics [0]->at <= rt_now)
641	{	676	{
642	struct ev_periodic *w = periodics [0];	677	struct ev_periodic *w = periodics [0];
643		678
644	/* first reschedule or stop timer */	679	/* first reschedule or stop timer */
645	if (w->interval)	680	if (w->interval)
646	{	681	{
647	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;
648	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));
649	downheap ((WT *)periodics, periodiccnt, 0);	684	downheap ((WT *)periodics, periodiccnt, 0);
650	}	685	}
651	else	686	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	687	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		688
654	event ((W)w, EV_PERIODIC);	689	event (EV_A_ (W)w, EV_PERIODIC);
655	}	690	}
656	}	691	}
657		692
658	static void	693	static void
659	periodics_reschedule (ev_tstamp diff)	694	periodics_reschedule (EV_P_ ev_tstamp diff)
660	{	695	{
661	int i;	696	int i;
662		697
663	/* adjust periodics after time jump */	698	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	699	for (i = 0; i < periodiccnt; ++i)
665	{	700	{
666	struct ev_periodic *w = periodics [i];	701	struct ev_periodic *w = periodics [i];
667		702
668	if (w->interval)	703	if (w->interval)
669	{	704	{
670	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;
671		706
672	if (fabs (diff) >= 1e-4)	707	if (fabs (diff) >= 1e-4)
673	{	708	{
674	ev_periodic_stop (w);	709	ev_periodic_stop (EV_A_ w);
675	ev_periodic_start (w);	710	ev_periodic_start (EV_A_ w);
676		711
677	i = 0; /* restart loop, inefficient, but time jumps should be rare */	712	i = 0; /* restart loop, inefficient, but time jumps should be rare */
678	}	713	}
679	}	714	}
680	}	715	}
681	}	716	}
682		717
683	static int	718	inline int
684	time_update_monotonic (void)	719	time_update_monotonic (EV_P)
685	{	720	{
686	now = get_clock ();	721	mn_now = get_clock ();
687		722
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	723	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	724	{
690	ev_now = now + diff;	725	rt_now = mn_now + diff;
691	return 0;	726	return 0;
692	}	727	}
693	else	728	else
694	{	729	{
695	now_floor = now;	730	now_floor = mn_now;
696	ev_now = ev_time ();	731	rt_now = ev_time ();
697	return 1;	732	return 1;
698	}	733	}
699	}	734	}
700		735
701	static void	736	static void
702	time_update (void)	737	time_update (EV_P)
703	{	738	{
704	int i;	739	int i;
705		740
706	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	742	if (expect_true (have_monotonic))
708	{	743	{
709	if (time_update_monotonic ())	744	if (time_update_monotonic (EV_A))
710	{	745	{
711	ev_tstamp odiff = diff;	746	ev_tstamp odiff = diff;
712		747
713	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 */
714	{	749	{
715	diff = ev_now - now;	750	diff = rt_now - mn_now;
716		751
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	752	if (fabs (odiff - diff) < MIN_TIMEJUMP)
718	return; /* all is well */	753	return; /* all is well */
719		754
720	ev_now = ev_time ();	755	rt_now = ev_time ();
721	now = get_clock ();	756	mn_now = get_clock ();
722	now_floor = now;	757	now_floor = mn_now;
723	}	758	}
724		759
725	periodics_reschedule (diff - odiff);	760	periodics_reschedule (EV_A_ diff - odiff);
726	/* no timer adjustment, as the monotonic clock doesn't jump */	761	/* no timer adjustment, as the monotonic clock doesn't jump */
727	}	762	}
728	}	763	}
729	else	764	else
730	#endif	765	#endif
731	{	766	{
732	ev_now = ev_time ();	767	rt_now = ev_time ();
733		768
734	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))
735	{	770	{
736	periodics_reschedule (ev_now - now);	771	periodics_reschedule (EV_A_ rt_now - mn_now);
737		772
738	/* 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 */
739	for (i = 0; i < timercnt; ++i)	774	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	775	timers [i]->at += diff;
741	}	776	}
742		777
743	now = ev_now;	778	mn_now = rt_now;
744	}	779	}
745	}	780	}
746		781
747	int ev_loop_done;	782	void
		783	ev_ref (EV_P)
		784	{
		785	++activecnt;
		786	}
748		787
		788	void
		789	ev_unref (EV_P)
		790	{
		791	--activecnt;
		792	}
		793
		794	static int loop_done;
		795
		796	void
749	void ev_loop (int flags)	797	ev_loop (EV_P_ int flags)
750	{	798	{
751	double block;	799	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	800	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
753		801
754	do	802	do
755	{	803	{
756	/* queue check watchers (and execute them) */	804	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	805	if (expect_false (preparecnt))
758	{	806	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	807	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	808	call_pending (EV_A);
761	}	809	}
762		810
763	/* update fd-related kernel structures */	811	/* update fd-related kernel structures */
764	fd_reify ();	812	fd_reify (EV_A);
765		813
766	/* calculate blocking time */	814	/* calculate blocking time */
767		815
768	/* 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
769	always have timers, we just calculate it always */	817	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	818	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	819	if (expect_true (have_monotonic))
772	time_update_monotonic ();	820	time_update_monotonic (EV_A);
773	else	821	else
774	#endif	822	#endif
775	{	823	{
776	ev_now = ev_time ();	824	rt_now = ev_time ();
777	now = ev_now;	825	mn_now = rt_now;
778	}	826	}
779		827
780	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	828	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
781	block = 0.;	829	block = 0.;
782	else	830	else
783	{	831	{
784	block = MAX_BLOCKTIME;	832	block = MAX_BLOCKTIME;
785		833
786	if (timercnt)	834	if (timercnt)
787	{	835	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	836	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
789	if (block > to) block = to;	837	if (block > to) block = to;
790	}	838	}
791		839
792	if (periodiccnt)	840	if (periodiccnt)
793	{	841	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	842	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
795	if (block > to) block = to;	843	if (block > to) block = to;
796	}	844	}
797		845
798	if (block < 0.) block = 0.;	846	if (block < 0.) block = 0.;
799	}	847	}
800		848
801	method_poll (block);	849	method_poll (EV_A_ block);
802		850
803	/* update ev_now, do magic */	851	/* update rt_now, do magic */
804	time_update ();	852	time_update (EV_A);
805		853
806	/* queue pending timers and reschedule them */	854	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	855	timers_reify (EV_A); /* relative timers called last */
808	periodics_reify (); /* absolute timers called first */	856	periodics_reify (EV_A); /* absolute timers called first */
809		857
810	/* queue idle watchers unless io or timers are pending */	858	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	859	if (!pendingcnt)
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	860	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		861
814	/* queue check watchers, to be executed first */	862	/* queue check watchers, to be executed first */
815	if (checkcnt)	863	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	864	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		865
818	call_pending ();	866	call_pending (EV_A);
819	}	867	}
820	while (!ev_loop_done);	868	while (activecnt && !loop_done);
821		869
822	if (ev_loop_done != 2)	870	if (loop_done != 2)
823	ev_loop_done = 0;	871	loop_done = 0;
		872	}
		873
		874	void
		875	ev_unloop (EV_P_ int how)
		876	{
		877	loop_done = how;
824	}	878	}
825		879
826	/*****************************************************************************/	880	/*****************************************************************************/
827		881
828	static void	882	inline void
829	wlist_add (WL *head, WL elem)	883	wlist_add (WL *head, WL elem)
830	{	884	{
831	elem->next = *head;	885	elem->next = *head;
832	*head = elem;	886	*head = elem;
833	}	887	}
834		888
835	static void	889	inline void
836	wlist_del (WL *head, WL elem)	890	wlist_del (WL *head, WL elem)
837	{	891	{
838	while (*head)	892	while (*head)
839	{	893	{
840	if (*head == elem)	894	if (*head == elem)
…		…
845		899
846	head = &(*head)->next;	900	head = &(*head)->next;
847	}	901	}
848	}	902	}
849		903
850	static void	904	inline void
851	ev_clear_pending (W w)	905	ev_clear_pending (EV_P_ W w)
852	{	906	{
853	if (w->pending)	907	if (w->pending)
854	{	908	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	909	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	910	w->pending = 0;
857	}	911	}
858	}	912	}
859		913
860	static void	914	inline void
861	ev_start (W w, int active)	915	ev_start (EV_P_ W w, int active)
862	{	916	{
		917	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		918	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		919
863	w->active = active;	920	w->active = active;
		921	ev_ref (EV_A);
864	}	922	}
865		923
866	static void	924	inline void
867	ev_stop (W w)	925	ev_stop (EV_P_ W w)
868	{	926	{
		927	ev_unref (EV_A);
869	w->active = 0;	928	w->active = 0;
870	}	929	}
871		930
872	/*****************************************************************************/	931	/*****************************************************************************/
873		932
874	void	933	void
875	ev_io_start (struct ev_io *w)	934	ev_io_start (EV_P_ struct ev_io *w)
876	{	935	{
877	int fd = w->fd;	936	int fd = w->fd;
878		937
879	if (ev_is_active (w))	938	if (ev_is_active (w))
880	return;	939	return;
881		940
882	assert (("ev_io_start called with negative fd", fd >= 0));	941	assert (("ev_io_start called with negative fd", fd >= 0));
883		942
884	ev_start ((W)w, 1);	943	ev_start (EV_A_ (W)w, 1);
885	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	944	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
886	wlist_add ((WL *)&anfds[fd].head, (WL)w);	945	wlist_add ((WL *)&anfds[fd].head, (WL)w);
887		946
888	fd_change (fd);	947	fd_change (EV_A_ fd);
889	}	948	}
890		949
891	void	950	void
892	ev_io_stop (struct ev_io *w)	951	ev_io_stop (EV_P_ struct ev_io *w)
893	{	952	{
894	ev_clear_pending ((W)w);	953	ev_clear_pending (EV_A_ (W)w);
895	if (!ev_is_active (w))	954	if (!ev_is_active (w))
896	return;	955	return;
897		956
898	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	957	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
899	ev_stop ((W)w);	958	ev_stop (EV_A_ (W)w);
900		959
901	fd_change (w->fd);	960	fd_change (EV_A_ w->fd);
902	}	961	}
903		962
904	void	963	void
905	ev_timer_start (struct ev_timer *w)	964	ev_timer_start (EV_P_ struct ev_timer *w)
906	{	965	{
907	if (ev_is_active (w))	966	if (ev_is_active (w))
908	return;	967	return;
909		968
910	w->at += now;	969	w->at += mn_now;
911		970
912	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.));
913		972
914	ev_start ((W)w, ++timercnt);	973	ev_start (EV_A_ (W)w, ++timercnt);
915	array_needsize (timers, timermax, timercnt, );	974	array_needsize (timers, timermax, timercnt, );
916	timers [timercnt - 1] = w;	975	timers [timercnt - 1] = w;
917	upheap ((WT *)timers, timercnt - 1);	976	upheap ((WT *)timers, timercnt - 1);
918	}	977	}
919		978
920	void	979	void
921	ev_timer_stop (struct ev_timer *w)	980	ev_timer_stop (EV_P_ struct ev_timer *w)
922	{	981	{
923	ev_clear_pending ((W)w);	982	ev_clear_pending (EV_A_ (W)w);
924	if (!ev_is_active (w))	983	if (!ev_is_active (w))
925	return;	984	return;
926		985
927	if (w->active < timercnt--)	986	if (w->active < timercnt--)
928	{	987	{
…		…
930	downheap ((WT *)timers, timercnt, w->active - 1);	989	downheap ((WT *)timers, timercnt, w->active - 1);
931	}	990	}
932		991
933	w->at = w->repeat;	992	w->at = w->repeat;
934		993
935	ev_stop ((W)w);	994	ev_stop (EV_A_ (W)w);
936	}	995	}
937		996
938	void	997	void
939	ev_timer_again (struct ev_timer *w)	998	ev_timer_again (EV_P_ struct ev_timer *w)
940	{	999	{
941	if (ev_is_active (w))	1000	if (ev_is_active (w))
942	{	1001	{
943	if (w->repeat)	1002	if (w->repeat)
944	{	1003	{
945	w->at = now + w->repeat;	1004	w->at = mn_now + w->repeat;
946	downheap ((WT *)timers, timercnt, w->active - 1);	1005	downheap ((WT *)timers, timercnt, w->active - 1);
947	}	1006	}
948	else	1007	else
949	ev_timer_stop (w);	1008	ev_timer_stop (EV_A_ w);
950	}	1009	}
951	else if (w->repeat)	1010	else if (w->repeat)
952	ev_timer_start (w);	1011	ev_timer_start (EV_A_ w);
953	}	1012	}
954		1013
955	void	1014	void
956	ev_periodic_start (struct ev_periodic *w)	1015	ev_periodic_start (EV_P_ struct ev_periodic *w)
957	{	1016	{
958	if (ev_is_active (w))	1017	if (ev_is_active (w))
959	return;	1018	return;
960		1019
961	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.));
962		1021
963	/* 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 */
964	if (w->interval)	1023	if (w->interval)
965	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1024	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
966		1025
967	ev_start ((W)w, ++periodiccnt);	1026	ev_start (EV_A_ (W)w, ++periodiccnt);
968	array_needsize (periodics, periodicmax, periodiccnt, );	1027	array_needsize (periodics, periodicmax, periodiccnt, );
969	periodics [periodiccnt - 1] = w;	1028	periodics [periodiccnt - 1] = w;
970	upheap ((WT *)periodics, periodiccnt - 1);	1029	upheap ((WT *)periodics, periodiccnt - 1);
971	}	1030	}
972		1031
973	void	1032	void
974	ev_periodic_stop (struct ev_periodic *w)	1033	ev_periodic_stop (EV_P_ struct ev_periodic *w)
975	{	1034	{
976	ev_clear_pending ((W)w);	1035	ev_clear_pending (EV_A_ (W)w);
977	if (!ev_is_active (w))	1036	if (!ev_is_active (w))
978	return;	1037	return;
979		1038
980	if (w->active < periodiccnt--)	1039	if (w->active < periodiccnt--)
981	{	1040	{
982	periodics [w->active - 1] = periodics [periodiccnt];	1041	periodics [w->active - 1] = periodics [periodiccnt];
983	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1042	downheap ((WT *)periodics, periodiccnt, w->active - 1);
984	}	1043	}
985		1044
986	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
987	}	1046	}
988		1047
		1048	#ifndef SA_RESTART
		1049	# define SA_RESTART 0
		1050	#endif
		1051
989	void	1052	void
990	ev_signal_start (struct ev_signal *w)	1053	ev_signal_start (EV_P_ struct ev_signal *w)
991	{	1054	{
992	if (ev_is_active (w))	1055	if (ev_is_active (w))
993	return;	1056	return;
994		1057
995	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));
996		1059
997	ev_start ((W)w, 1);	1060	ev_start (EV_A_ (W)w, 1);
998	array_needsize (signals, signalmax, w->signum, signals_init);	1061	array_needsize (signals, signalmax, w->signum, signals_init);
999	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1062	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1000		1063
1001	if (!w->next)	1064	if (!w->next)
1002	{	1065	{
1003	struct sigaction sa;	1066	struct sigaction sa;
1004	sa.sa_handler = sighandler;	1067	sa.sa_handler = sighandler;
1005	sigfillset (&sa.sa_mask);	1068	sigfillset (&sa.sa_mask);
1006	sa.sa_flags = 0;	1069	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1007	sigaction (w->signum, &sa, 0);	1070	sigaction (w->signum, &sa, 0);
1008	}	1071	}
1009	}	1072	}
1010		1073
1011	void	1074	void
1012	ev_signal_stop (struct ev_signal *w)	1075	ev_signal_stop (EV_P_ struct ev_signal *w)
1013	{	1076	{
1014	ev_clear_pending ((W)w);	1077	ev_clear_pending (EV_A_ (W)w);
1015	if (!ev_is_active (w))	1078	if (!ev_is_active (w))
1016	return;	1079	return;
1017		1080
1018	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1081	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1019	ev_stop ((W)w);	1082	ev_stop (EV_A_ (W)w);
1020		1083
1021	if (!signals [w->signum - 1].head)	1084	if (!signals [w->signum - 1].head)
1022	signal (w->signum, SIG_DFL);	1085	signal (w->signum, SIG_DFL);
1023	}	1086	}
1024		1087
1025	void	1088	void
1026	ev_idle_start (struct ev_idle *w)	1089	ev_idle_start (EV_P_ struct ev_idle *w)
1027	{	1090	{
1028	if (ev_is_active (w))	1091	if (ev_is_active (w))
1029	return;	1092	return;
1030		1093
1031	ev_start ((W)w, ++idlecnt);	1094	ev_start (EV_A_ (W)w, ++idlecnt);
1032	array_needsize (idles, idlemax, idlecnt, );	1095	array_needsize (idles, idlemax, idlecnt, );
1033	idles [idlecnt - 1] = w;	1096	idles [idlecnt - 1] = w;
1034	}	1097	}
1035		1098
1036	void	1099	void
1037	ev_idle_stop (struct ev_idle *w)	1100	ev_idle_stop (EV_P_ struct ev_idle *w)
1038	{	1101	{
1039	ev_clear_pending ((W)w);	1102	ev_clear_pending (EV_A_ (W)w);
1040	if (ev_is_active (w))	1103	if (ev_is_active (w))
1041	return;	1104	return;
1042		1105
1043	idles [w->active - 1] = idles [--idlecnt];	1106	idles [w->active - 1] = idles [--idlecnt];
1044	ev_stop ((W)w);	1107	ev_stop (EV_A_ (W)w);
1045	}	1108	}
1046		1109
1047	void	1110	void
1048	ev_prepare_start (struct ev_prepare *w)	1111	ev_prepare_start (EV_P_ struct ev_prepare *w)
1049	{	1112	{
1050	if (ev_is_active (w))	1113	if (ev_is_active (w))
1051	return;	1114	return;
1052		1115
1053	ev_start ((W)w, ++preparecnt);	1116	ev_start (EV_A_ (W)w, ++preparecnt);
1054	array_needsize (prepares, preparemax, preparecnt, );	1117	array_needsize (prepares, preparemax, preparecnt, );
1055	prepares [preparecnt - 1] = w;	1118	prepares [preparecnt - 1] = w;
1056	}	1119	}
1057		1120
1058	void	1121	void
1059	ev_prepare_stop (struct ev_prepare *w)	1122	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1060	{	1123	{
1061	ev_clear_pending ((W)w);	1124	ev_clear_pending (EV_A_ (W)w);
1062	if (ev_is_active (w))	1125	if (ev_is_active (w))
1063	return;	1126	return;
1064		1127
1065	prepares [w->active - 1] = prepares [--preparecnt];	1128	prepares [w->active - 1] = prepares [--preparecnt];
1066	ev_stop ((W)w);	1129	ev_stop (EV_A_ (W)w);
1067	}	1130	}
1068		1131
1069	void	1132	void
1070	ev_check_start (struct ev_check *w)	1133	ev_check_start (EV_P_ struct ev_check *w)
1071	{	1134	{
1072	if (ev_is_active (w))	1135	if (ev_is_active (w))
1073	return;	1136	return;
1074		1137
1075	ev_start ((W)w, ++checkcnt);	1138	ev_start (EV_A_ (W)w, ++checkcnt);
1076	array_needsize (checks, checkmax, checkcnt, );	1139	array_needsize (checks, checkmax, checkcnt, );
1077	checks [checkcnt - 1] = w;	1140	checks [checkcnt - 1] = w;
1078	}	1141	}
1079		1142
1080	void	1143	void
1081	ev_check_stop (struct ev_check *w)	1144	ev_check_stop (EV_P_ struct ev_check *w)
1082	{	1145	{
1083	ev_clear_pending ((W)w);	1146	ev_clear_pending (EV_A_ (W)w);
1084	if (ev_is_active (w))	1147	if (ev_is_active (w))
1085	return;	1148	return;
1086		1149
1087	checks [w->active - 1] = checks [--checkcnt];	1150	checks [w->active - 1] = checks [--checkcnt];
1088	ev_stop ((W)w);	1151	ev_stop (EV_A_ (W)w);
1089	}	1152	}
1090		1153
1091	void	1154	void
1092	ev_child_start (struct ev_child *w)	1155	ev_child_start (EV_P_ struct ev_child *w)
1093	{	1156	{
1094	if (ev_is_active (w))	1157	if (ev_is_active (w))
1095	return;	1158	return;
1096		1159
1097	ev_start ((W)w, 1);	1160	ev_start (EV_A_ (W)w, 1);
1098	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1161	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1099	}	1162	}
1100		1163
1101	void	1164	void
1102	ev_child_stop (struct ev_child *w)	1165	ev_child_stop (EV_P_ struct ev_child *w)
1103	{	1166	{
1104	ev_clear_pending ((W)w);	1167	ev_clear_pending (EV_A_ (W)w);
1105	if (ev_is_active (w))	1168	if (ev_is_active (w))
1106	return;	1169	return;
1107		1170
1108	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1171	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1109	ev_stop ((W)w);	1172	ev_stop (EV_A_ (W)w);
1110	}	1173	}
1111		1174
1112	/*****************************************************************************/	1175	/*****************************************************************************/
1113		1176
1114	struct ev_once	1177	struct ev_once
…		…
1118	void (cb)(int revents, void arg);	1181	void (cb)(int revents, void arg);
1119	void *arg;	1182	void *arg;
1120	};	1183	};
1121		1184
1122	static void	1185	static void
1123	once_cb (struct ev_once *once, int revents)	1186	once_cb (EV_P_ struct ev_once *once, int revents)
1124	{	1187	{
1125	void (cb)(int revents, void arg) = once->cb;	1188	void (cb)(int revents, void arg) = once->cb;
1126	void *arg = once->arg;	1189	void *arg = once->arg;
1127		1190
1128	ev_io_stop (&once->io);	1191	ev_io_stop (EV_A_ &once->io);
1129	ev_timer_stop (&once->to);	1192	ev_timer_stop (EV_A_ &once->to);
1130	free (once);	1193	free (once);
1131		1194
1132	cb (revents, arg);	1195	cb (revents, arg);
1133	}	1196	}
1134		1197
1135	static void	1198	static void
1136	once_cb_io (struct ev_io *w, int revents)	1199	once_cb_io (EV_P_ struct ev_io *w, int revents)
1137	{	1200	{
1138	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);
1139	}	1202	}
1140		1203
1141	static void	1204	static void
1142	once_cb_to (struct ev_timer *w, int revents)	1205	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1143	{	1206	{
1144	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);
1145	}	1208	}
1146		1209
1147	void	1210	void
1148	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)
1149	{	1212	{
1150	struct ev_once *once = malloc (sizeof (struct ev_once));	1213	struct ev_once *once = malloc (sizeof (struct ev_once));
1151		1214
1152	if (!once)	1215	if (!once)
1153	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1216	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1158		1221
1159	ev_watcher_init (&once->io, once_cb_io);	1222	ev_watcher_init (&once->io, once_cb_io);
1160	if (fd >= 0)	1223	if (fd >= 0)
1161	{	1224	{
1162	ev_io_set (&once->io, fd, events);	1225	ev_io_set (&once->io, fd, events);
1163	ev_io_start (&once->io);	1226	ev_io_start (EV_A_ &once->io);
1164	}	1227	}
1165		1228
1166	ev_watcher_init (&once->to, once_cb_to);	1229	ev_watcher_init (&once->to, once_cb_to);
1167	if (timeout >= 0.)	1230	if (timeout >= 0.)
1168	{	1231	{
1169	ev_timer_set (&once->to, timeout, 0.);	1232	ev_timer_set (&once->to, timeout, 0.);
1170	ev_timer_start (&once->to);	1233	ev_timer_start (EV_A_ &once->to);
1171	}	1234	}
1172	}	1235	}
1173	}	1236	}
1174		1237
1175	/*****************************************************************************/	1238	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.42 by root, Fri Nov 2 20:05:05 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 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs.
Revision 1.53 by root, Sat Nov 3 22:31:11 2007 UTC