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

Comparing libev/ev.c (file contents):
Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs.
Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
33	#endif	33	#endif
34		34
35	#include <math.h>	35	#include <math.h>
36	#include <stdlib.h>	36	#include <stdlib.h>
…		…
58		58
59	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
61	#endif	61	#endif
62		62
63	#ifndef EV_USE_POLL	63	#ifndef EV_USEV_POLL
64	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	65	#endif
66		66
67	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
69	#endif	69	#endif
…		…
113		113
114	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
117		117
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119	ev_tstamp ev_now;
120	int ev_method;
121
122	static int have_monotonic; /* runtime */
123
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		119
128	/*****************************************************************************/	120	/*****************************************************************************/
129		121
130	ev_tstamp	122	typedef struct
		123	{
		124	struct ev_watcher_list *head;
		125	unsigned char events;
		126	unsigned char reify;
		127	} ANFD;
		128
		129	typedef struct
		130	{
		131	W w;
		132	int events;
		133	} ANPENDING;
		134
		135	#if EV_MULTIPLICITY
		136
		137	struct ev_loop
		138	{
		139	# define VAR(name,decl) decl;
		140	# include "ev_vars.h"
		141	};
		142	# undef VAR
		143	# include "ev_wrap.h"
		144
		145	#else
		146
		147	# define VAR(name,decl) static decl;
		148	# include "ev_vars.h"
		149	# undef VAR
		150
		151	#endif
		152
		153	/*****************************************************************************/
		154
		155	inline ev_tstamp
131	ev_time (void)	156	ev_time (void)
132	{	157	{
133	#if EV_USE_REALTIME	158	#if EV_USE_REALTIME
134	struct timespec ts;	159	struct timespec ts;
135	clock_gettime (CLOCK_REALTIME, &ts);	160	clock_gettime (CLOCK_REALTIME, &ts);
…		…
139	gettimeofday (&tv, 0);	164	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	165	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	166	#endif
142	}	167	}
143		168
144	static ev_tstamp	169	inline ev_tstamp
145	get_clock (void)	170	get_clock (void)
146	{	171	{
147	#if EV_USE_MONOTONIC	172	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	173	if (expect_true (have_monotonic))
149	{	174	{
…		…
152	return ts.tv_sec + ts.tv_nsec * 1e-9;	177	return ts.tv_sec + ts.tv_nsec * 1e-9;
153	}	178	}
154	#endif	179	#endif
155		180
156	return ev_time ();	181	return ev_time ();
		182	}
		183
		184	ev_tstamp
		185	ev_now (EV_P)
		186	{
		187	return rt_now;
157	}	188	}
158		189
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	190	#define array_roundsize(base,n) ((n) \| 4 & ~3)
160		191
161	#define array_needsize(base,cur,cnt,init) \	192	#define array_needsize(base,cur,cnt,init) \
…		…
173	cur = newcnt; \	204	cur = newcnt; \
174	}	205	}
175		206
176	/*****************************************************************************/	207	/*****************************************************************************/
177		208
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187
188	static void	209	static void
189	anfds_init (ANFD *base, int count)	210	anfds_init (ANFD *base, int count)
190	{	211	{
191	while (count--)	212	while (count--)
192	{	213	{
…		…
196		217
197	++base;	218	++base;
198	}	219	}
199	}	220	}
200		221
201	typedef struct
202	{
203	W w;
204	int events;
205	} ANPENDING;
206
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void	222	static void
211	event (W w, int events)	223	event (EV_P_ W w, int events)
212	{	224	{
213	if (w->pending)	225	if (w->pending)
214	{	226	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
216	return;	228	return;
…		…
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	233	pendings [ABSPRI (w)][w->pending - 1].w = w;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	234	pendings [ABSPRI (w)][w->pending - 1].events = events;
223	}	235	}
224		236
225	static void	237	static void
226	queue_events (W *events, int eventcnt, int type)	238	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	239	{
228	int i;	240	int i;
229		241
230	for (i = 0; i < eventcnt; ++i)	242	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	243	event (EV_A_ events [i], type);
232	}	244	}
233		245
234	static void	246	static void
235	fd_event (int fd, int events)	247	fd_event (EV_P_ int fd, int events)
236	{	248	{
237	ANFD *anfd = anfds + fd;	249	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	250	struct ev_io *w;
239		251
240	for (w = anfd->head; w; w = w->next)	252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	253	{
242	int ev = w->events & events;	254	int ev = w->events & events;
243		255
244	if (ev)	256	if (ev)
245	event ((W)w, ev);	257	event (EV_A_ (W)w, ev);
246	}	258	}
247	}	259	}
248		260
249	/*****************************************************************************/	261	/*****************************************************************************/
250		262
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	263	static void
255	fd_reify (void)	264	fd_reify (EV_P)
256	{	265	{
257	int i;	266	int i;
258		267
259	for (i = 0; i < fdchangecnt; ++i)	268	for (i = 0; i < fdchangecnt; ++i)
260	{	269	{
…		…
262	ANFD *anfd = anfds + fd;	271	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	272	struct ev_io *w;
264		273
265	int events = 0;	274	int events = 0;
266		275
267	for (w = anfd->head; w; w = w->next)	276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	277	events \|= w->events;
269		278
270	anfd->reify = 0;	279	anfd->reify = 0;
271		280
272	if (anfd->events != events)	281	if (anfd->events != events)
273	{	282	{
274	method_modify (fd, anfd->events, events);	283	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	284	anfd->events = events;
276	}	285	}
277	}	286	}
278		287
279	fdchangecnt = 0;	288	fdchangecnt = 0;
280	}	289	}
281		290
282	static void	291	static void
283	fd_change (int fd)	292	fd_change (EV_P_ int fd)
284	{	293	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	294	if (anfds [fd].reify \|\| fdchangecnt < 0)
286	return;	295	return;
287		296
288	anfds [fd].reify = 1;	297	anfds [fd].reify = 1;
…		…
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
292	fdchanges [fdchangecnt - 1] = fd;	301	fdchanges [fdchangecnt - 1] = fd;
293	}	302	}
294		303
295	static void	304	static void
296	fd_kill (int fd)	305	fd_kill (EV_P_ int fd)
297	{	306	{
298	struct ev_io *w;	307	struct ev_io *w;
299		308
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	309	while ((w = (struct ev_io *)anfds [fd].head))
302	{	310	{
303	ev_io_stop (w);	311	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	313	}
306	}	314	}
307		315
308	/* called on EBADF to verify fds */	316	/* called on EBADF to verify fds */
309	static void	317	static void
310	fd_ebadf (void)	318	fd_ebadf (EV_P)
311	{	319	{
312	int fd;	320	int fd;
313		321
314	for (fd = 0; fd < anfdmax; ++fd)	322	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	323	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
317	fd_kill (fd);	325	fd_kill (EV_A_ fd);
318	}	326	}
319		327
320	/* called on ENOMEM in select/poll to kill some fds and retry */	328	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	329	static void
322	fd_enomem (void)	330	fd_enomem (EV_P)
323	{	331	{
324	int fd = anfdmax;	332	int fd = anfdmax;
325		333
326	while (fd--)	334	while (fd--)
327	if (anfds [fd].events)	335	if (anfds [fd].events)
328	{	336	{
329	close (fd);	337	close (fd);
330	fd_kill (fd);	338	fd_kill (EV_A_ fd);
331	return;	339	return;
332	}	340	}
333	}	341	}
334		342
335	/*****************************************************************************/	343	/*****************************************************************************/
336		344
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	345	static void
344	upheap (WT *timers, int k)	346	upheap (WT *heap, int k)
345	{	347	{
346	WT w = timers [k];	348	WT w = heap [k];
347		349
348	while (k && timers [k >> 1]->at > w->at)	350	while (k && heap [k >> 1]->at > w->at)
349	{	351	{
350	timers [k] = timers [k >> 1];	352	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	353	heap [k]->active = k + 1;
352	k >>= 1;	354	k >>= 1;
353	}	355	}
354		356
355	timers [k] = w;	357	heap [k] = w;
356	timers [k]->active = k + 1;	358	heap [k]->active = k + 1;
357		359
358	}	360	}
359		361
360	static void	362	static void
361	downheap (WT *timers, int N, int k)	363	downheap (WT *heap, int N, int k)
362	{	364	{
363	WT w = timers [k];	365	WT w = heap [k];
364		366
365	while (k < (N >> 1))	367	while (k < (N >> 1))
366	{	368	{
367	int j = k << 1;	369	int j = k << 1;
368		370
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	371	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	372	++j;
371		373
372	if (w->at <= timers [j]->at)	374	if (w->at <= heap [j]->at)
373	break;	375	break;
374		376
375	timers [k] = timers [j];	377	heap [k] = heap [j];
376	timers [k]->active = k + 1;	378	heap [k]->active = k + 1;
377	k = j;	379	k = j;
378	}	380	}
379		381
380	timers [k] = w;	382	heap [k] = w;
381	timers [k]->active = k + 1;	383	heap [k]->active = k + 1;
382	}	384	}
383		385
384	/*****************************************************************************/	386	/*****************************************************************************/
385		387
386	typedef struct	388	typedef struct
387	{	389	{
388	struct ev_signal *head;	390	struct ev_watcher_list *head;
389	sig_atomic_t volatile gotsig;	391	sig_atomic_t volatile gotsig;
390	} ANSIG;	392	} ANSIG;
391		393
392	static ANSIG *signals;	394	static ANSIG *signals;
393	static int signalmax;	395	static int signalmax;
394		396
395	static int sigpipe [2];	397	static int sigpipe [2];
396	static sig_atomic_t volatile gotsig;	398	static sig_atomic_t volatile gotsig;
397	static struct ev_io sigev;
398		399
399	static void	400	static void
400	signals_init (ANSIG *base, int count)	401	signals_init (ANSIG *base, int count)
401	{	402	{
402	while (count--)	403	while (count--)
…		…
413	{	414	{
414	signals [signum - 1].gotsig = 1;	415	signals [signum - 1].gotsig = 1;
415		416
416	if (!gotsig)	417	if (!gotsig)
417	{	418	{
		419	int old_errno = errno;
418	gotsig = 1;	420	gotsig = 1;
419	write (sigpipe [1], &signum, 1);	421	write (sigpipe [1], &signum, 1);
		422	errno = old_errno;
420	}	423	}
421	}	424	}
422		425
423	static void	426	static void
424	sigcb (struct ev_io *iow, int revents)	427	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	428	{
426	struct ev_signal *w;	429	struct ev_watcher_list *w;
427	int signum;	430	int signum;
428		431
429	read (sigpipe [0], &revents, 1);	432	read (sigpipe [0], &revents, 1);
430	gotsig = 0;	433	gotsig = 0;
431		434
…		…
433	if (signals [signum].gotsig)	436	if (signals [signum].gotsig)
434	{	437	{
435	signals [signum].gotsig = 0;	438	signals [signum].gotsig = 0;
436		439
437	for (w = signals [signum].head; w; w = w->next)	440	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);	441	event (EV_A_ (W)w, EV_SIGNAL);
439	}	442	}
440	}	443	}
441		444
442	static void	445	static void
443	siginit (void)	446	siginit (EV_P)
444	{	447	{
445	#ifndef WIN32	448	#ifndef WIN32
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	449	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	450	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448		451
…		…
450	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	453	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	454	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	455	#endif
453		456
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	457	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	458	ev_io_start (EV_A_ &sigev);
		459	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	460	}
457		461
458	/*****************************************************************************/	462	/*****************************************************************************/
459
460	static struct ev_idle **idles;
461	static int idlemax, idlecnt;
462
463	static struct ev_prepare **prepares;
464	static int preparemax, preparecnt;
465
466	static struct ev_check **checks;
467	static int checkmax, checkcnt;
468
469	/*****************************************************************************/
470
471	static struct ev_child *childs [PID_HASHSIZE];
472	static struct ev_signal childev;
473		463
474	#ifndef WIN32	464	#ifndef WIN32
475		465
476	#ifndef WCONTINUED	466	#ifndef WCONTINUED
477	# define WCONTINUED 0	467	# define WCONTINUED 0
478	#endif	468	#endif
479		469
480	static void	470	static void
481	childcb (struct ev_signal *sw, int revents)	471	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	472	{
483	struct ev_child *w;	473	struct ev_child *w;
		474
		475	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		476	if (w->pid == pid \|\| !w->pid)
		477	{
		478	w->priority = sw->priority; /* need to do it now */
		479	w->rpid = pid;
		480	w->rstatus = status;
		481	event (EV_A_ (W)w, EV_CHILD);
		482	}
		483	}
		484
		485	static void
		486	childcb (EV_P_ struct ev_signal *sw, int revents)
		487	{
484	int pid, status;	488	int pid, status;
485		489
486	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	490	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
487	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	491	{
488	if (w->pid == pid \|\| !w->pid)	492	/* make sure we are called again until all childs have been reaped */
489	{	493	event (EV_A_ (W)sw, EV_SIGNAL);
490	w->rpid = pid;	494
491	w->rstatus = status;	495	child_reap (EV_A_ sw, pid, pid, status);
492	event ((W)w, EV_CHILD);	496	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
493	}	497	}
494	}	498	}
495		499
496	#endif	500	#endif
497		501
498	/*****************************************************************************/	502	/*****************************************************************************/
…		…
501	# include "ev_kqueue.c"	505	# include "ev_kqueue.c"
502	#endif	506	#endif
503	#if EV_USE_EPOLL	507	#if EV_USE_EPOLL
504	# include "ev_epoll.c"	508	# include "ev_epoll.c"
505	#endif	509	#endif
506	#if EV_USE_POLL	510	#if EV_USEV_POLL
507	# include "ev_poll.c"	511	# include "ev_poll.c"
508	#endif	512	#endif
509	#if EV_USE_SELECT	513	#if EV_USE_SELECT
510	# include "ev_select.c"	514	# include "ev_select.c"
511	#endif	515	#endif
…		…
520	ev_version_minor (void)	524	ev_version_minor (void)
521	{	525	{
522	return EV_VERSION_MINOR;	526	return EV_VERSION_MINOR;
523	}	527	}
524		528
525	/* return true if we are running with elevated privileges and ignore env variables */	529	/* return true if we are running with elevated privileges and should ignore env variables */
526	static int	530	static int
527	enable_secure ()	531	enable_secure (void)
528	{	532	{
		533	#ifdef WIN32
		534	return 0;
		535	#else
529	return getuid () != geteuid ()	536	return getuid () != geteuid ()
530	\|\| getgid () != getegid ();	537	\|\| getgid () != getegid ();
		538	#endif
531	}	539	}
532		540
533	int ev_init (int methods)	541	int
		542	ev_method (EV_P)
534	{	543	{
		544	return method;
		545	}
		546
		547	inline int
		548	loop_init (EV_P_ int methods)
		549	{
535	if (!ev_method)	550	if (!method)
536	{	551	{
537	#if EV_USE_MONOTONIC	552	#if EV_USE_MONOTONIC
538	{	553	{
539	struct timespec ts;	554	struct timespec ts;
540	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	555	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
541	have_monotonic = 1;	556	have_monotonic = 1;
542	}	557	}
543	#endif	558	#endif
544		559
545	ev_now = ev_time ();	560	rt_now = ev_time ();
546	now = get_clock ();	561	mn_now = get_clock ();
547	now_floor = now;	562	now_floor = mn_now;
548	diff = ev_now - now;	563	rtmn_diff = rt_now - mn_now;
549		564
550	if (pipe (sigpipe))	565	if (pipe (sigpipe))
551	return 0;	566	return 0;
552		567
553	if (methods == EVMETHOD_AUTO)	568	if (methods == EVMETHOD_AUTO)
554	if (!enable_secure () && getenv ("LIBEV_METHODS"))	569	if (!enable_secure () && getenv ("LIBmethodS"))
555	methods = atoi (getenv ("LIBEV_METHODS"));	570	methods = atoi (getenv ("LIBmethodS"));
556	else	571	else
557	methods = EVMETHOD_ANY;	572	methods = EVMETHOD_ANY;
558		573
559	ev_method = 0;	574	method = 0;
560	#if EV_USE_KQUEUE	575	#if EV_USE_KQUEUE
561	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
562	#endif	577	#endif
563	#if EV_USE_EPOLL	578	#if EV_USE_EPOLL
564	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
565	#endif	580	#endif
566	#if EV_USE_POLL	581	#if EV_USEV_POLL
567	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
568	#endif	583	#endif
569	#if EV_USE_SELECT	584	#if EV_USE_SELECT
570	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
571	#endif	586	#endif
572		587
573	if (ev_method)	588	if (method)
574	{	589	{
575	ev_watcher_init (&sigev, sigcb);	590	ev_watcher_init (&sigev, sigcb);
		591	ev_set_priority (&sigev, EV_MAXPRI);
576	siginit ();	592	siginit (EV_A);
577		593
578	#ifndef WIN32	594	#ifndef WIN32
579	ev_signal_init (&childev, childcb, SIGCHLD);	595	ev_signal_init (&childev, childcb, SIGCHLD);
		596	ev_set_priority (&childev, EV_MAXPRI);
580	ev_signal_start (&childev);	597	ev_signal_start (EV_A_ &childev);
		598	ev_unref (EV_A); /* child watcher should not keep loop alive */
581	#endif	599	#endif
582	}	600	}
583	}	601	}
584		602
585	return ev_method;	603	return method;
586	}	604	}
		605
		606	#if EV_MULTIPLICITY
		607
		608	struct ev_loop *
		609	ev_loop_new (int methods)
		610	{
		611	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));
		612
		613	if (loop_init (EV_A_ methods))
		614	return loop;
		615
		616	ev_loop_delete (loop);
		617
		618	return 0;
		619	}
		620
		621	void
		622	ev_loop_delete (EV_P)
		623	{
		624	/TODO/
		625	free (loop);
		626	}
		627
		628	#else
		629
		630	int
		631	ev_init (int methods)
		632	{
		633	return loop_init (methods);
		634	}
		635
		636	#endif
587		637
588	/*****************************************************************************/	638	/*****************************************************************************/
589		639
590	void	640	void
591	ev_fork_prepare (void)	641	ev_fork_prepare (void)
…		…
600	}	650	}
601		651
602	void	652	void
603	ev_fork_child (void)	653	ev_fork_child (void)
604	{	654	{
		655	/TODO/
		656	#if !EV_MULTIPLICITY
605	#if EV_USE_EPOLL	657	#if EV_USE_EPOLL
606	if (ev_method == EVMETHOD_EPOLL)	658	if (method == EVMETHOD_EPOLL)
607	epoll_postfork_child ();	659	epoll_postfork_child (EV_A);
608	#endif	660	#endif
609		661
610	ev_io_stop (&sigev);	662	ev_io_stop (EV_A_ &sigev);
611	close (sigpipe [0]);	663	close (sigpipe [0]);
612	close (sigpipe [1]);	664	close (sigpipe [1]);
613	pipe (sigpipe);	665	pipe (sigpipe);
614	siginit ();	666	siginit (EV_A);
		667	#endif
615	}	668	}
616		669
617	/*****************************************************************************/	670	/*****************************************************************************/
618		671
619	static void	672	static void
620	call_pending (void)	673	call_pending (EV_P)
621	{	674	{
622	int pri;	675	int pri;
623		676
624	for (pri = NUMPRI; pri--; )	677	for (pri = NUMPRI; pri--; )
625	while (pendingcnt [pri])	678	while (pendingcnt [pri])
…		…
627	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	680	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
628		681
629	if (p->w)	682	if (p->w)
630	{	683	{
631	p->w->pending = 0;	684	p->w->pending = 0;
632	p->w->cb (p->w, p->events);	685	p->w->cb (EV_A_ p->w, p->events);
633	}	686	}
634	}	687	}
635	}	688	}
636		689
637	static void	690	static void
638	timers_reify (void)	691	timers_reify (EV_P)
639	{	692	{
640	while (timercnt && timers [0]->at <= now)	693	while (timercnt && timers [0]->at <= mn_now)
641	{	694	{
642	struct ev_timer *w = timers [0];	695	struct ev_timer *w = timers [0];
643		696
644	/* first reschedule or stop timer */	697	/* first reschedule or stop timer */
645	if (w->repeat)	698	if (w->repeat)
646	{	699	{
647	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	700	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
648	w->at = now + w->repeat;	701	w->at = mn_now + w->repeat;
649	downheap ((WT *)timers, timercnt, 0);	702	downheap ((WT *)timers, timercnt, 0);
650	}	703	}
651	else	704	else
652	ev_timer_stop (w); /* nonrepeating: stop timer */	705	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
653		706
654	event ((W)w, EV_TIMEOUT);	707	event (EV_A_ (W)w, EV_TIMEOUT);
655	}	708	}
656	}	709	}
657		710
658	static void	711	static void
659	periodics_reify (void)	712	periodics_reify (EV_P)
660	{	713	{
661	while (periodiccnt && periodics [0]->at <= ev_now)	714	while (periodiccnt && periodics [0]->at <= rt_now)
662	{	715	{
663	struct ev_periodic *w = periodics [0];	716	struct ev_periodic *w = periodics [0];
664		717
665	/* first reschedule or stop timer */	718	/* first reschedule or stop timer */
666	if (w->interval)	719	if (w->interval)
667	{	720	{
668	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	721	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;
669	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	722	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
670	downheap ((WT *)periodics, periodiccnt, 0);	723	downheap ((WT *)periodics, periodiccnt, 0);
671	}	724	}
672	else	725	else
673	ev_periodic_stop (w); /* nonrepeating: stop timer */	726	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
674		727
675	event ((W)w, EV_PERIODIC);	728	event (EV_A_ (W)w, EV_PERIODIC);
676	}	729	}
677	}	730	}
678		731
679	static void	732	static void
680	periodics_reschedule (ev_tstamp diff)	733	periodics_reschedule (EV_P)
681	{	734	{
682	int i;	735	int i;
683		736
684	/* adjust periodics after time jump */	737	/* adjust periodics after time jump */
685	for (i = 0; i < periodiccnt; ++i)	738	for (i = 0; i < periodiccnt; ++i)
686	{	739	{
687	struct ev_periodic *w = periodics [i];	740	struct ev_periodic *w = periodics [i];
688		741
689	if (w->interval)	742	if (w->interval)
690	{	743	{
691	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	744	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
692		745
693	if (fabs (diff) >= 1e-4)	746	if (fabs (diff) >= 1e-4)
694	{	747	{
695	ev_periodic_stop (w);	748	ev_periodic_stop (EV_A_ w);
696	ev_periodic_start (w);	749	ev_periodic_start (EV_A_ w);
697		750
698	i = 0; /* restart loop, inefficient, but time jumps should be rare */	751	i = 0; /* restart loop, inefficient, but time jumps should be rare */
699	}	752	}
700	}	753	}
701	}	754	}
702	}	755	}
703		756
704	static int	757	inline int
705	time_update_monotonic (void)	758	time_update_monotonic (EV_P)
706	{	759	{
707	now = get_clock ();	760	mn_now = get_clock ();
708		761
709	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	762	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
710	{	763	{
711	ev_now = now + diff;	764	rt_now = rtmn_diff + mn_now;
712	return 0;	765	return 0;
713	}	766	}
714	else	767	else
715	{	768	{
716	now_floor = now;	769	now_floor = mn_now;
717	ev_now = ev_time ();	770	rt_now = ev_time ();
718	return 1;	771	return 1;
719	}	772	}
720	}	773	}
721		774
722	static void	775	static void
723	time_update (void)	776	time_update (EV_P)
724	{	777	{
725	int i;	778	int i;
726		779
727	#if EV_USE_MONOTONIC	780	#if EV_USE_MONOTONIC
728	if (expect_true (have_monotonic))	781	if (expect_true (have_monotonic))
729	{	782	{
730	if (time_update_monotonic ())	783	if (time_update_monotonic (EV_A))
731	{	784	{
732	ev_tstamp odiff = diff;	785	ev_tstamp odiff = rtmn_diff;
733		786
734	for (i = 4; --i; ) /* loop a few times, before making important decisions */	787	for (i = 4; --i; ) /* loop a few times, before making important decisions */
735	{	788	{
736	diff = ev_now - now;	789	rtmn_diff = rt_now - mn_now;
737		790
738	if (fabs (odiff - diff) < MIN_TIMEJUMP)	791	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
739	return; /* all is well */	792	return; /* all is well */
740		793
741	ev_now = ev_time ();	794	rt_now = ev_time ();
742	now = get_clock ();	795	mn_now = get_clock ();
743	now_floor = now;	796	now_floor = mn_now;
744	}	797	}
745		798
746	periodics_reschedule (diff - odiff);	799	periodics_reschedule (EV_A);
747	/* no timer adjustment, as the monotonic clock doesn't jump */	800	/* no timer adjustment, as the monotonic clock doesn't jump */
		801	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
748	}	802	}
749	}	803	}
750	else	804	else
751	#endif	805	#endif
752	{	806	{
753	ev_now = ev_time ();	807	rt_now = ev_time ();
754		808
755	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	809	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
756	{	810	{
757	periodics_reschedule (ev_now - now);	811	periodics_reschedule (EV_A);
758		812
759	/* adjust timers. this is easy, as the offset is the same for all */	813	/* adjust timers. this is easy, as the offset is the same for all */
760	for (i = 0; i < timercnt; ++i)	814	for (i = 0; i < timercnt; ++i)
761	timers [i]->at += diff;	815	timers [i]->at += rt_now - mn_now;
762	}	816	}
763		817
764	now = ev_now;	818	mn_now = rt_now;
765	}	819	}
766	}	820	}
767		821
768	int ev_loop_done;	822	void
		823	ev_ref (EV_P)
		824	{
		825	++activecnt;
		826	}
769		827
		828	void
		829	ev_unref (EV_P)
		830	{
		831	--activecnt;
		832	}
		833
		834	static int loop_done;
		835
		836	void
770	void ev_loop (int flags)	837	ev_loop (EV_P_ int flags)
771	{	838	{
772	double block;	839	double block;
773	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	840	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
774		841
775	do	842	do
776	{	843	{
777	/* queue check watchers (and execute them) */	844	/* queue check watchers (and execute them) */
778	if (expect_false (preparecnt))	845	if (expect_false (preparecnt))
779	{	846	{
780	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	847	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
781	call_pending ();	848	call_pending (EV_A);
782	}	849	}
783		850
784	/* update fd-related kernel structures */	851	/* update fd-related kernel structures */
785	fd_reify ();	852	fd_reify (EV_A);
786		853
787	/* calculate blocking time */	854	/* calculate blocking time */
788		855
789	/* we only need this for !monotonic clockor timers, but as we basically	856	/* we only need this for !monotonic clockor timers, but as we basically
790	always have timers, we just calculate it always */	857	always have timers, we just calculate it always */
791	#if EV_USE_MONOTONIC	858	#if EV_USE_MONOTONIC
792	if (expect_true (have_monotonic))	859	if (expect_true (have_monotonic))
793	time_update_monotonic ();	860	time_update_monotonic (EV_A);
794	else	861	else
795	#endif	862	#endif
796	{	863	{
797	ev_now = ev_time ();	864	rt_now = ev_time ();
798	now = ev_now;	865	mn_now = rt_now;
799	}	866	}
800		867
801	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	868	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
802	block = 0.;	869	block = 0.;
803	else	870	else
804	{	871	{
805	block = MAX_BLOCKTIME;	872	block = MAX_BLOCKTIME;
806		873
807	if (timercnt)	874	if (timercnt)
808	{	875	{
809	ev_tstamp to = timers [0]->at - now + method_fudge;	876	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
810	if (block > to) block = to;	877	if (block > to) block = to;
811	}	878	}
812		879
813	if (periodiccnt)	880	if (periodiccnt)
814	{	881	{
815	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	882	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
816	if (block > to) block = to;	883	if (block > to) block = to;
817	}	884	}
818		885
819	if (block < 0.) block = 0.;	886	if (block < 0.) block = 0.;
820	}	887	}
821		888
822	method_poll (block);	889	method_poll (EV_A_ block);
823		890
824	/* update ev_now, do magic */	891	/* update rt_now, do magic */
825	time_update ();	892	time_update (EV_A);
826		893
827	/* queue pending timers and reschedule them */	894	/* queue pending timers and reschedule them */
828	timers_reify (); /* relative timers called last */	895	timers_reify (EV_A); /* relative timers called last */
829	periodics_reify (); /* absolute timers called first */	896	periodics_reify (EV_A); /* absolute timers called first */
830		897
831	/* queue idle watchers unless io or timers are pending */	898	/* queue idle watchers unless io or timers are pending */
832	if (!pendingcnt)	899	if (!pendingcnt)
833	queue_events ((W *)idles, idlecnt, EV_IDLE);	900	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
834		901
835	/* queue check watchers, to be executed first */	902	/* queue check watchers, to be executed first */
836	if (checkcnt)	903	if (checkcnt)
837	queue_events ((W *)checks, checkcnt, EV_CHECK);	904	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
838		905
839	call_pending ();	906	call_pending (EV_A);
840	}	907	}
841	while (!ev_loop_done);	908	while (activecnt && !loop_done);
842		909
843	if (ev_loop_done != 2)	910	if (loop_done != 2)
844	ev_loop_done = 0;	911	loop_done = 0;
		912	}
		913
		914	void
		915	ev_unloop (EV_P_ int how)
		916	{
		917	loop_done = how;
845	}	918	}
846		919
847	/*****************************************************************************/	920	/*****************************************************************************/
848		921
849	static void	922	inline void
850	wlist_add (WL *head, WL elem)	923	wlist_add (WL *head, WL elem)
851	{	924	{
852	elem->next = *head;	925	elem->next = *head;
853	*head = elem;	926	*head = elem;
854	}	927	}
855		928
856	static void	929	inline void
857	wlist_del (WL *head, WL elem)	930	wlist_del (WL *head, WL elem)
858	{	931	{
859	while (*head)	932	while (*head)
860	{	933	{
861	if (*head == elem)	934	if (*head == elem)
…		…
866		939
867	head = &(*head)->next;	940	head = &(*head)->next;
868	}	941	}
869	}	942	}
870		943
871	static void	944	inline void
872	ev_clear_pending (W w)	945	ev_clear_pending (EV_P_ W w)
873	{	946	{
874	if (w->pending)	947	if (w->pending)
875	{	948	{
876	pendings [ABSPRI (w)][w->pending - 1].w = 0;	949	pendings [ABSPRI (w)][w->pending - 1].w = 0;
877	w->pending = 0;	950	w->pending = 0;
878	}	951	}
879	}	952	}
880		953
881	static void	954	inline void
882	ev_start (W w, int active)	955	ev_start (EV_P_ W w, int active)
883	{	956	{
884	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	957	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
885	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	958	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
886		959
887	w->active = active;	960	w->active = active;
		961	ev_ref (EV_A);
888	}	962	}
889		963
890	static void	964	inline void
891	ev_stop (W w)	965	ev_stop (EV_P_ W w)
892	{	966	{
		967	ev_unref (EV_A);
893	w->active = 0;	968	w->active = 0;
894	}	969	}
895		970
896	/*****************************************************************************/	971	/*****************************************************************************/
897		972
898	void	973	void
899	ev_io_start (struct ev_io *w)	974	ev_io_start (EV_P_ struct ev_io *w)
900	{	975	{
901	int fd = w->fd;	976	int fd = w->fd;
902		977
903	if (ev_is_active (w))	978	if (ev_is_active (w))
904	return;	979	return;
905		980
906	assert (("ev_io_start called with negative fd", fd >= 0));	981	assert (("ev_io_start called with negative fd", fd >= 0));
907		982
908	ev_start ((W)w, 1);	983	ev_start (EV_A_ (W)w, 1);
909	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	984	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
910	wlist_add ((WL *)&anfds[fd].head, (WL)w);	985	wlist_add ((WL *)&anfds[fd].head, (WL)w);
911		986
912	fd_change (fd);	987	fd_change (EV_A_ fd);
913	}	988	}
914		989
915	void	990	void
916	ev_io_stop (struct ev_io *w)	991	ev_io_stop (EV_P_ struct ev_io *w)
917	{	992	{
918	ev_clear_pending ((W)w);	993	ev_clear_pending (EV_A_ (W)w);
919	if (!ev_is_active (w))	994	if (!ev_is_active (w))
920	return;	995	return;
921		996
922	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	997	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
923	ev_stop ((W)w);	998	ev_stop (EV_A_ (W)w);
924		999
925	fd_change (w->fd);	1000	fd_change (EV_A_ w->fd);
926	}	1001	}
927		1002
928	void	1003	void
929	ev_timer_start (struct ev_timer *w)	1004	ev_timer_start (EV_P_ struct ev_timer *w)
930	{	1005	{
931	if (ev_is_active (w))	1006	if (ev_is_active (w))
932	return;	1007	return;
933		1008
934	w->at += now;	1009	w->at += mn_now;
935		1010
936	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1011	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
937		1012
938	ev_start ((W)w, ++timercnt);	1013	ev_start (EV_A_ (W)w, ++timercnt);
939	array_needsize (timers, timermax, timercnt, );	1014	array_needsize (timers, timermax, timercnt, );
940	timers [timercnt - 1] = w;	1015	timers [timercnt - 1] = w;
941	upheap ((WT *)timers, timercnt - 1);	1016	upheap ((WT *)timers, timercnt - 1);
942	}	1017	}
943		1018
944	void	1019	void
945	ev_timer_stop (struct ev_timer *w)	1020	ev_timer_stop (EV_P_ struct ev_timer *w)
946	{	1021	{
947	ev_clear_pending ((W)w);	1022	ev_clear_pending (EV_A_ (W)w);
948	if (!ev_is_active (w))	1023	if (!ev_is_active (w))
949	return;	1024	return;
950		1025
951	if (w->active < timercnt--)	1026	if (w->active < timercnt--)
952	{	1027	{
…		…
954	downheap ((WT *)timers, timercnt, w->active - 1);	1029	downheap ((WT *)timers, timercnt, w->active - 1);
955	}	1030	}
956		1031
957	w->at = w->repeat;	1032	w->at = w->repeat;
958		1033
959	ev_stop ((W)w);	1034	ev_stop (EV_A_ (W)w);
960	}	1035	}
961		1036
962	void	1037	void
963	ev_timer_again (struct ev_timer *w)	1038	ev_timer_again (EV_P_ struct ev_timer *w)
964	{	1039	{
965	if (ev_is_active (w))	1040	if (ev_is_active (w))
966	{	1041	{
967	if (w->repeat)	1042	if (w->repeat)
968	{	1043	{
969	w->at = now + w->repeat;	1044	w->at = mn_now + w->repeat;
970	downheap ((WT *)timers, timercnt, w->active - 1);	1045	downheap ((WT *)timers, timercnt, w->active - 1);
971	}	1046	}
972	else	1047	else
973	ev_timer_stop (w);	1048	ev_timer_stop (EV_A_ w);
974	}	1049	}
975	else if (w->repeat)	1050	else if (w->repeat)
976	ev_timer_start (w);	1051	ev_timer_start (EV_A_ w);
977	}	1052	}
978		1053
979	void	1054	void
980	ev_periodic_start (struct ev_periodic *w)	1055	ev_periodic_start (EV_P_ struct ev_periodic *w)
981	{	1056	{
982	if (ev_is_active (w))	1057	if (ev_is_active (w))
983	return;	1058	return;
984		1059
985	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1060	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
986		1061
987	/* this formula differs from the one in periodic_reify because we do not always round up */	1062	/* this formula differs from the one in periodic_reify because we do not always round up */
988	if (w->interval)	1063	if (w->interval)
989	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1064	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
990		1065
991	ev_start ((W)w, ++periodiccnt);	1066	ev_start (EV_A_ (W)w, ++periodiccnt);
992	array_needsize (periodics, periodicmax, periodiccnt, );	1067	array_needsize (periodics, periodicmax, periodiccnt, );
993	periodics [periodiccnt - 1] = w;	1068	periodics [periodiccnt - 1] = w;
994	upheap ((WT *)periodics, periodiccnt - 1);	1069	upheap ((WT *)periodics, periodiccnt - 1);
995	}	1070	}
996		1071
997	void	1072	void
998	ev_periodic_stop (struct ev_periodic *w)	1073	ev_periodic_stop (EV_P_ struct ev_periodic *w)
999	{	1074	{
1000	ev_clear_pending ((W)w);	1075	ev_clear_pending (EV_A_ (W)w);
1001	if (!ev_is_active (w))	1076	if (!ev_is_active (w))
1002	return;	1077	return;
1003		1078
1004	if (w->active < periodiccnt--)	1079	if (w->active < periodiccnt--)
1005	{	1080	{
1006	periodics [w->active - 1] = periodics [periodiccnt];	1081	periodics [w->active - 1] = periodics [periodiccnt];
1007	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1082	downheap ((WT *)periodics, periodiccnt, w->active - 1);
1008	}	1083	}
1009		1084
1010	ev_stop ((W)w);	1085	ev_stop (EV_A_ (W)w);
1011	}	1086	}
1012		1087
		1088	#ifndef SA_RESTART
		1089	# define SA_RESTART 0
		1090	#endif
		1091
1013	void	1092	void
1014	ev_signal_start (struct ev_signal *w)	1093	ev_signal_start (EV_P_ struct ev_signal *w)
1015	{	1094	{
1016	if (ev_is_active (w))	1095	if (ev_is_active (w))
1017	return;	1096	return;
1018		1097
1019	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1098	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1020		1099
1021	ev_start ((W)w, 1);	1100	ev_start (EV_A_ (W)w, 1);
1022	array_needsize (signals, signalmax, w->signum, signals_init);	1101	array_needsize (signals, signalmax, w->signum, signals_init);
1023	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1102	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1024		1103
1025	if (!w->next)	1104	if (!w->next)
1026	{	1105	{
1027	struct sigaction sa;	1106	struct sigaction sa;
1028	sa.sa_handler = sighandler;	1107	sa.sa_handler = sighandler;
1029	sigfillset (&sa.sa_mask);	1108	sigfillset (&sa.sa_mask);
1030	sa.sa_flags = 0;	1109	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1031	sigaction (w->signum, &sa, 0);	1110	sigaction (w->signum, &sa, 0);
1032	}	1111	}
1033	}	1112	}
1034		1113
1035	void	1114	void
1036	ev_signal_stop (struct ev_signal *w)	1115	ev_signal_stop (EV_P_ struct ev_signal *w)
1037	{	1116	{
1038	ev_clear_pending ((W)w);	1117	ev_clear_pending (EV_A_ (W)w);
1039	if (!ev_is_active (w))	1118	if (!ev_is_active (w))
1040	return;	1119	return;
1041		1120
1042	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1121	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1043	ev_stop ((W)w);	1122	ev_stop (EV_A_ (W)w);
1044		1123
1045	if (!signals [w->signum - 1].head)	1124	if (!signals [w->signum - 1].head)
1046	signal (w->signum, SIG_DFL);	1125	signal (w->signum, SIG_DFL);
1047	}	1126	}
1048		1127
1049	void	1128	void
1050	ev_idle_start (struct ev_idle *w)	1129	ev_idle_start (EV_P_ struct ev_idle *w)
1051	{	1130	{
1052	if (ev_is_active (w))	1131	if (ev_is_active (w))
1053	return;	1132	return;
1054		1133
1055	ev_start ((W)w, ++idlecnt);	1134	ev_start (EV_A_ (W)w, ++idlecnt);
1056	array_needsize (idles, idlemax, idlecnt, );	1135	array_needsize (idles, idlemax, idlecnt, );
1057	idles [idlecnt - 1] = w;	1136	idles [idlecnt - 1] = w;
1058	}	1137	}
1059		1138
1060	void	1139	void
1061	ev_idle_stop (struct ev_idle *w)	1140	ev_idle_stop (EV_P_ struct ev_idle *w)
1062	{	1141	{
1063	ev_clear_pending ((W)w);	1142	ev_clear_pending (EV_A_ (W)w);
1064	if (ev_is_active (w))	1143	if (ev_is_active (w))
1065	return;	1144	return;
1066		1145
1067	idles [w->active - 1] = idles [--idlecnt];	1146	idles [w->active - 1] = idles [--idlecnt];
1068	ev_stop ((W)w);	1147	ev_stop (EV_A_ (W)w);
1069	}	1148	}
1070		1149
1071	void	1150	void
1072	ev_prepare_start (struct ev_prepare *w)	1151	ev_prepare_start (EV_P_ struct ev_prepare *w)
1073	{	1152	{
1074	if (ev_is_active (w))	1153	if (ev_is_active (w))
1075	return;	1154	return;
1076		1155
1077	ev_start ((W)w, ++preparecnt);	1156	ev_start (EV_A_ (W)w, ++preparecnt);
1078	array_needsize (prepares, preparemax, preparecnt, );	1157	array_needsize (prepares, preparemax, preparecnt, );
1079	prepares [preparecnt - 1] = w;	1158	prepares [preparecnt - 1] = w;
1080	}	1159	}
1081		1160
1082	void	1161	void
1083	ev_prepare_stop (struct ev_prepare *w)	1162	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1084	{	1163	{
1085	ev_clear_pending ((W)w);	1164	ev_clear_pending (EV_A_ (W)w);
1086	if (ev_is_active (w))	1165	if (ev_is_active (w))
1087	return;	1166	return;
1088		1167
1089	prepares [w->active - 1] = prepares [--preparecnt];	1168	prepares [w->active - 1] = prepares [--preparecnt];
1090	ev_stop ((W)w);	1169	ev_stop (EV_A_ (W)w);
1091	}	1170	}
1092		1171
1093	void	1172	void
1094	ev_check_start (struct ev_check *w)	1173	ev_check_start (EV_P_ struct ev_check *w)
1095	{	1174	{
1096	if (ev_is_active (w))	1175	if (ev_is_active (w))
1097	return;	1176	return;
1098		1177
1099	ev_start ((W)w, ++checkcnt);	1178	ev_start (EV_A_ (W)w, ++checkcnt);
1100	array_needsize (checks, checkmax, checkcnt, );	1179	array_needsize (checks, checkmax, checkcnt, );
1101	checks [checkcnt - 1] = w;	1180	checks [checkcnt - 1] = w;
1102	}	1181	}
1103		1182
1104	void	1183	void
1105	ev_check_stop (struct ev_check *w)	1184	ev_check_stop (EV_P_ struct ev_check *w)
1106	{	1185	{
1107	ev_clear_pending ((W)w);	1186	ev_clear_pending (EV_A_ (W)w);
1108	if (ev_is_active (w))	1187	if (ev_is_active (w))
1109	return;	1188	return;
1110		1189
1111	checks [w->active - 1] = checks [--checkcnt];	1190	checks [w->active - 1] = checks [--checkcnt];
1112	ev_stop ((W)w);	1191	ev_stop (EV_A_ (W)w);
1113	}	1192	}
1114		1193
1115	void	1194	void
1116	ev_child_start (struct ev_child *w)	1195	ev_child_start (EV_P_ struct ev_child *w)
1117	{	1196	{
1118	if (ev_is_active (w))	1197	if (ev_is_active (w))
1119	return;	1198	return;
1120		1199
1121	ev_start ((W)w, 1);	1200	ev_start (EV_A_ (W)w, 1);
1122	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1201	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1123	}	1202	}
1124		1203
1125	void	1204	void
1126	ev_child_stop (struct ev_child *w)	1205	ev_child_stop (EV_P_ struct ev_child *w)
1127	{	1206	{
1128	ev_clear_pending ((W)w);	1207	ev_clear_pending (EV_A_ (W)w);
1129	if (ev_is_active (w))	1208	if (ev_is_active (w))
1130	return;	1209	return;
1131		1210
1132	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1211	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1133	ev_stop ((W)w);	1212	ev_stop (EV_A_ (W)w);
1134	}	1213	}
1135		1214
1136	/*****************************************************************************/	1215	/*****************************************************************************/
1137		1216
1138	struct ev_once	1217	struct ev_once
…		…
1142	void (cb)(int revents, void arg);	1221	void (cb)(int revents, void arg);
1143	void *arg;	1222	void *arg;
1144	};	1223	};
1145		1224
1146	static void	1225	static void
1147	once_cb (struct ev_once *once, int revents)	1226	once_cb (EV_P_ struct ev_once *once, int revents)
1148	{	1227	{
1149	void (cb)(int revents, void arg) = once->cb;	1228	void (cb)(int revents, void arg) = once->cb;
1150	void *arg = once->arg;	1229	void *arg = once->arg;
1151		1230
1152	ev_io_stop (&once->io);	1231	ev_io_stop (EV_A_ &once->io);
1153	ev_timer_stop (&once->to);	1232	ev_timer_stop (EV_A_ &once->to);
1154	free (once);	1233	free (once);
1155		1234
1156	cb (revents, arg);	1235	cb (revents, arg);
1157	}	1236	}
1158		1237
1159	static void	1238	static void
1160	once_cb_io (struct ev_io *w, int revents)	1239	once_cb_io (EV_P_ struct ev_io *w, int revents)
1161	{	1240	{
1162	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1241	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1163	}	1242	}
1164		1243
1165	static void	1244	static void
1166	once_cb_to (struct ev_timer *w, int revents)	1245	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1167	{	1246	{
1168	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1247	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1169	}	1248	}
1170		1249
1171	void	1250	void
1172	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1251	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1173	{	1252	{
1174	struct ev_once *once = malloc (sizeof (struct ev_once));	1253	struct ev_once *once = malloc (sizeof (struct ev_once));
1175		1254
1176	if (!once)	1255	if (!once)
1177	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1256	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1182		1261
1183	ev_watcher_init (&once->io, once_cb_io);	1262	ev_watcher_init (&once->io, once_cb_io);
1184	if (fd >= 0)	1263	if (fd >= 0)
1185	{	1264	{
1186	ev_io_set (&once->io, fd, events);	1265	ev_io_set (&once->io, fd, events);
1187	ev_io_start (&once->io);	1266	ev_io_start (EV_A_ &once->io);
1188	}	1267	}
1189		1268
1190	ev_watcher_init (&once->to, once_cb_to);	1269	ev_watcher_init (&once->to, once_cb_to);
1191	if (timeout >= 0.)	1270	if (timeout >= 0.)
1192	{	1271	{
1193	ev_timer_set (&once->to, timeout, 0.);	1272	ev_timer_set (&once->to, timeout, 0.);
1194	ev_timer_start (&once->to);	1273	ev_timer_start (EV_A_ &once->to);
1195	}	1274	}
1196	}	1275	}
1197	}	1276	}
1198		1277
1199	/*****************************************************************************/	1278	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs. Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.46 by root, Sat Nov 3 09:20:12 2007 UTC vs.
Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC