[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 1.54 by root, Sun Nov 4 00:24:16 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	#ifdef 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	static void
		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	#ifdef 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	loop_init (EV_A_ methods);
		614
		615	return loop;
		616	}
		617
		618	void
		619	ev_loop_delete (EV_P)
		620	{
		621	/TODO/
		622	free (loop);
		623	}
		624
		625	#else
		626
		627	int
		628	ev_init (int methods)
		629	{
		630	loop_init ();
		631	}
		632
		633	#endif
587		634
588	/*****************************************************************************/	635	/*****************************************************************************/
589		636
590	void	637	void
591	ev_fork_prepare (void)	638	ev_fork_prepare (void)
…		…
600	}	647	}
601		648
602	void	649	void
603	ev_fork_child (void)	650	ev_fork_child (void)
604	{	651	{
		652	/TODO/
		653	#if !EV_MULTIPLICITY
605	#if EV_USE_EPOLL	654	#if EV_USE_EPOLL
606	if (ev_method == EVMETHOD_EPOLL)	655	if (method == EVMETHOD_EPOLL)
607	epoll_postfork_child ();	656	epoll_postfork_child (EV_A);
608	#endif	657	#endif
609		658
610	ev_io_stop (&sigev);	659	ev_io_stop (EV_A_ &sigev);
611	close (sigpipe [0]);	660	close (sigpipe [0]);
612	close (sigpipe [1]);	661	close (sigpipe [1]);
613	pipe (sigpipe);	662	pipe (sigpipe);
614	siginit ();	663	siginit (EV_A);
		664	#endif
615	}	665	}
616		666
617	/*****************************************************************************/	667	/*****************************************************************************/
618		668
619	static void	669	static void
620	call_pending (void)	670	call_pending (EV_P)
621	{	671	{
622	int pri;	672	int pri;
623		673
624	for (pri = NUMPRI; pri--; )	674	for (pri = NUMPRI; pri--; )
625	while (pendingcnt [pri])	675	while (pendingcnt [pri])
…		…
627	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	677	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
628		678
629	if (p->w)	679	if (p->w)
630	{	680	{
631	p->w->pending = 0;	681	p->w->pending = 0;
632	p->w->cb (p->w, p->events);	682	p->w->cb (EV_A_ p->w, p->events);
633	}	683	}
634	}	684	}
635	}	685	}
636		686
637	static void	687	static void
638	timers_reify (void)	688	timers_reify (EV_P)
639	{	689	{
640	while (timercnt && timers [0]->at <= now)	690	while (timercnt && timers [0]->at <= mn_now)
641	{	691	{
642	struct ev_timer *w = timers [0];	692	struct ev_timer *w = timers [0];
643		693
644	/* first reschedule or stop timer */	694	/* first reschedule or stop timer */
645	if (w->repeat)	695	if (w->repeat)
646	{	696	{
647	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	697	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
648	w->at = now + w->repeat;	698	w->at = mn_now + w->repeat;
649	downheap ((WT *)timers, timercnt, 0);	699	downheap ((WT *)timers, timercnt, 0);
650	}	700	}
651	else	701	else
652	ev_timer_stop (w); /* nonrepeating: stop timer */	702	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
653		703
654	event ((W)w, EV_TIMEOUT);	704	event (EV_A_ (W)w, EV_TIMEOUT);
655	}	705	}
656	}	706	}
657		707
658	static void	708	static void
659	periodics_reify (void)	709	periodics_reify (EV_P)
660	{	710	{
661	while (periodiccnt && periodics [0]->at <= ev_now)	711	while (periodiccnt && periodics [0]->at <= rt_now)
662	{	712	{
663	struct ev_periodic *w = periodics [0];	713	struct ev_periodic *w = periodics [0];
664		714
665	/* first reschedule or stop timer */	715	/* first reschedule or stop timer */
666	if (w->interval)	716	if (w->interval)
667	{	717	{
668	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	718	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));	719	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
670	downheap ((WT *)periodics, periodiccnt, 0);	720	downheap ((WT *)periodics, periodiccnt, 0);
671	}	721	}
672	else	722	else
673	ev_periodic_stop (w); /* nonrepeating: stop timer */	723	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
674		724
675	event ((W)w, EV_PERIODIC);	725	event (EV_A_ (W)w, EV_PERIODIC);
676	}	726	}
677	}	727	}
678		728
679	static void	729	static void
680	periodics_reschedule (ev_tstamp diff)	730	periodics_reschedule (EV_P)
681	{	731	{
682	int i;	732	int i;
683		733
684	/* adjust periodics after time jump */	734	/* adjust periodics after time jump */
685	for (i = 0; i < periodiccnt; ++i)	735	for (i = 0; i < periodiccnt; ++i)
686	{	736	{
687	struct ev_periodic *w = periodics [i];	737	struct ev_periodic *w = periodics [i];
688		738
689	if (w->interval)	739	if (w->interval)
690	{	740	{
691	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	741	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
692		742
693	if (fabs (diff) >= 1e-4)	743	if (fabs (diff) >= 1e-4)
694	{	744	{
695	ev_periodic_stop (w);	745	ev_periodic_stop (EV_A_ w);
696	ev_periodic_start (w);	746	ev_periodic_start (EV_A_ w);
697		747
698	i = 0; /* restart loop, inefficient, but time jumps should be rare */	748	i = 0; /* restart loop, inefficient, but time jumps should be rare */
699	}	749	}
700	}	750	}
701	}	751	}
702	}	752	}
703		753
704	static int	754	inline int
705	time_update_monotonic (void)	755	time_update_monotonic (EV_P)
706	{	756	{
707	now = get_clock ();	757	mn_now = get_clock ();
708		758
709	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	759	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
710	{	760	{
711	ev_now = now + diff;	761	rt_now = rtmn_diff + mn_now;
712	return 0;	762	return 0;
713	}	763	}
714	else	764	else
715	{	765	{
716	now_floor = now;	766	now_floor = mn_now;
717	ev_now = ev_time ();	767	rt_now = ev_time ();
718	return 1;	768	return 1;
719	}	769	}
720	}	770	}
721		771
722	static void	772	static void
723	time_update (void)	773	time_update (EV_P)
724	{	774	{
725	int i;	775	int i;
726		776
727	#if EV_USE_MONOTONIC	777	#if EV_USE_MONOTONIC
728	if (expect_true (have_monotonic))	778	if (expect_true (have_monotonic))
729	{	779	{
730	if (time_update_monotonic ())	780	if (time_update_monotonic (EV_A))
731	{	781	{
732	ev_tstamp odiff = diff;	782	ev_tstamp odiff = rtmn_diff;
733		783
734	for (i = 4; --i; ) /* loop a few times, before making important decisions */	784	for (i = 4; --i; ) /* loop a few times, before making important decisions */
735	{	785	{
736	diff = ev_now - now;	786	rtmn_diff = rt_now - mn_now;
737		787
738	if (fabs (odiff - diff) < MIN_TIMEJUMP)	788	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
739	return; /* all is well */	789	return; /* all is well */
740		790
741	ev_now = ev_time ();	791	rt_now = ev_time ();
742	now = get_clock ();	792	mn_now = get_clock ();
743	now_floor = now;	793	now_floor = mn_now;
744	}	794	}
745		795
746	periodics_reschedule (diff - odiff);	796	periodics_reschedule (EV_A);
747	/* no timer adjustment, as the monotonic clock doesn't jump */	797	/* no timer adjustment, as the monotonic clock doesn't jump */
		798	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
748	}	799	}
749	}	800	}
750	else	801	else
751	#endif	802	#endif
752	{	803	{
753	ev_now = ev_time ();	804	rt_now = ev_time ();
754		805
755	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	806	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
756	{	807	{
757	periodics_reschedule (ev_now - now);	808	periodics_reschedule (EV_A);
758		809
759	/* adjust timers. this is easy, as the offset is the same for all */	810	/* adjust timers. this is easy, as the offset is the same for all */
760	for (i = 0; i < timercnt; ++i)	811	for (i = 0; i < timercnt; ++i)
761	timers [i]->at += diff;	812	timers [i]->at += rt_now - mn_now;
762	}	813	}
763		814
764	now = ev_now;	815	mn_now = rt_now;
765	}	816	}
766	}	817	}
767		818
768	int ev_loop_done;	819	void
		820	ev_ref (EV_P)
		821	{
		822	++activecnt;
		823	}
769		824
		825	void
		826	ev_unref (EV_P)
		827	{
		828	--activecnt;
		829	}
		830
		831	static int loop_done;
		832
		833	void
770	void ev_loop (int flags)	834	ev_loop (EV_P_ int flags)
771	{	835	{
772	double block;	836	double block;
773	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	837	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
774		838
775	do	839	do
776	{	840	{
777	/* queue check watchers (and execute them) */	841	/* queue check watchers (and execute them) */
778	if (expect_false (preparecnt))	842	if (expect_false (preparecnt))
779	{	843	{
780	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	844	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
781	call_pending ();	845	call_pending (EV_A);
782	}	846	}
783		847
784	/* update fd-related kernel structures */	848	/* update fd-related kernel structures */
785	fd_reify ();	849	fd_reify (EV_A);
786		850
787	/* calculate blocking time */	851	/* calculate blocking time */
788		852
789	/* we only need this for !monotonic clockor timers, but as we basically	853	/* we only need this for !monotonic clockor timers, but as we basically
790	always have timers, we just calculate it always */	854	always have timers, we just calculate it always */
791	#if EV_USE_MONOTONIC	855	#if EV_USE_MONOTONIC
792	if (expect_true (have_monotonic))	856	if (expect_true (have_monotonic))
793	time_update_monotonic ();	857	time_update_monotonic (EV_A);
794	else	858	else
795	#endif	859	#endif
796	{	860	{
797	ev_now = ev_time ();	861	rt_now = ev_time ();
798	now = ev_now;	862	mn_now = rt_now;
799	}	863	}
800		864
801	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	865	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
802	block = 0.;	866	block = 0.;
803	else	867	else
804	{	868	{
805	block = MAX_BLOCKTIME;	869	block = MAX_BLOCKTIME;
806		870
807	if (timercnt)	871	if (timercnt)
808	{	872	{
809	ev_tstamp to = timers [0]->at - now + method_fudge;	873	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
810	if (block > to) block = to;	874	if (block > to) block = to;
811	}	875	}
812		876
813	if (periodiccnt)	877	if (periodiccnt)
814	{	878	{
815	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	879	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
816	if (block > to) block = to;	880	if (block > to) block = to;
817	}	881	}
818		882
819	if (block < 0.) block = 0.;	883	if (block < 0.) block = 0.;
820	}	884	}
821		885
822	method_poll (block);	886	method_poll (EV_A_ block);
823		887
824	/* update ev_now, do magic */	888	/* update rt_now, do magic */
825	time_update ();	889	time_update (EV_A);
826		890
827	/* queue pending timers and reschedule them */	891	/* queue pending timers and reschedule them */
828	timers_reify (); /* relative timers called last */	892	timers_reify (EV_A); /* relative timers called last */
829	periodics_reify (); /* absolute timers called first */	893	periodics_reify (EV_A); /* absolute timers called first */
830		894
831	/* queue idle watchers unless io or timers are pending */	895	/* queue idle watchers unless io or timers are pending */
832	if (!pendingcnt)	896	if (!pendingcnt)
833	queue_events ((W *)idles, idlecnt, EV_IDLE);	897	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
834		898
835	/* queue check watchers, to be executed first */	899	/* queue check watchers, to be executed first */
836	if (checkcnt)	900	if (checkcnt)
837	queue_events ((W *)checks, checkcnt, EV_CHECK);	901	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
838		902
839	call_pending ();	903	call_pending (EV_A);
840	}	904	}
841	while (!ev_loop_done);	905	while (activecnt && !loop_done);
842		906
843	if (ev_loop_done != 2)	907	if (loop_done != 2)
844	ev_loop_done = 0;	908	loop_done = 0;
		909	}
		910
		911	void
		912	ev_unloop (EV_P_ int how)
		913	{
		914	loop_done = how;
845	}	915	}
846		916
847	/*****************************************************************************/	917	/*****************************************************************************/
848		918
849	static void	919	inline void
850	wlist_add (WL *head, WL elem)	920	wlist_add (WL *head, WL elem)
851	{	921	{
852	elem->next = *head;	922	elem->next = *head;
853	*head = elem;	923	*head = elem;
854	}	924	}
855		925
856	static void	926	inline void
857	wlist_del (WL *head, WL elem)	927	wlist_del (WL *head, WL elem)
858	{	928	{
859	while (*head)	929	while (*head)
860	{	930	{
861	if (*head == elem)	931	if (*head == elem)
…		…
866		936
867	head = &(*head)->next;	937	head = &(*head)->next;
868	}	938	}
869	}	939	}
870		940
871	static void	941	inline void
872	ev_clear_pending (W w)	942	ev_clear_pending (EV_P_ W w)
873	{	943	{
874	if (w->pending)	944	if (w->pending)
875	{	945	{
876	pendings [ABSPRI (w)][w->pending - 1].w = 0;	946	pendings [ABSPRI (w)][w->pending - 1].w = 0;
877	w->pending = 0;	947	w->pending = 0;
878	}	948	}
879	}	949	}
880		950
881	static void	951	inline void
882	ev_start (W w, int active)	952	ev_start (EV_P_ W w, int active)
883	{	953	{
884	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	954	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
885	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	955	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
886		956
887	w->active = active;	957	w->active = active;
		958	ev_ref (EV_A);
888	}	959	}
889		960
890	static void	961	inline void
891	ev_stop (W w)	962	ev_stop (EV_P_ W w)
892	{	963	{
		964	ev_unref (EV_A);
893	w->active = 0;	965	w->active = 0;
894	}	966	}
895		967
896	/*****************************************************************************/	968	/*****************************************************************************/
897		969
898	void	970	void
899	ev_io_start (struct ev_io *w)	971	ev_io_start (EV_P_ struct ev_io *w)
900	{	972	{
901	int fd = w->fd;	973	int fd = w->fd;
902		974
903	if (ev_is_active (w))	975	if (ev_is_active (w))
904	return;	976	return;
905		977
906	assert (("ev_io_start called with negative fd", fd >= 0));	978	assert (("ev_io_start called with negative fd", fd >= 0));
907		979
908	ev_start ((W)w, 1);	980	ev_start (EV_A_ (W)w, 1);
909	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	981	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
910	wlist_add ((WL *)&anfds[fd].head, (WL)w);	982	wlist_add ((WL *)&anfds[fd].head, (WL)w);
911		983
912	fd_change (fd);	984	fd_change (EV_A_ fd);
913	}	985	}
914		986
915	void	987	void
916	ev_io_stop (struct ev_io *w)	988	ev_io_stop (EV_P_ struct ev_io *w)
917	{	989	{
918	ev_clear_pending ((W)w);	990	ev_clear_pending (EV_A_ (W)w);
919	if (!ev_is_active (w))	991	if (!ev_is_active (w))
920	return;	992	return;
921		993
922	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	994	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
923	ev_stop ((W)w);	995	ev_stop (EV_A_ (W)w);
924		996
925	fd_change (w->fd);	997	fd_change (EV_A_ w->fd);
926	}	998	}
927		999
928	void	1000	void
929	ev_timer_start (struct ev_timer *w)	1001	ev_timer_start (EV_P_ struct ev_timer *w)
930	{	1002	{
931	if (ev_is_active (w))	1003	if (ev_is_active (w))
932	return;	1004	return;
933		1005
934	w->at += now;	1006	w->at += mn_now;
935		1007
936	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1008	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
937		1009
938	ev_start ((W)w, ++timercnt);	1010	ev_start (EV_A_ (W)w, ++timercnt);
939	array_needsize (timers, timermax, timercnt, );	1011	array_needsize (timers, timermax, timercnt, );
940	timers [timercnt - 1] = w;	1012	timers [timercnt - 1] = w;
941	upheap ((WT *)timers, timercnt - 1);	1013	upheap ((WT *)timers, timercnt - 1);
942	}	1014	}
943		1015
944	void	1016	void
945	ev_timer_stop (struct ev_timer *w)	1017	ev_timer_stop (EV_P_ struct ev_timer *w)
946	{	1018	{
947	ev_clear_pending ((W)w);	1019	ev_clear_pending (EV_A_ (W)w);
948	if (!ev_is_active (w))	1020	if (!ev_is_active (w))
949	return;	1021	return;
950		1022
951	if (w->active < timercnt--)	1023	if (w->active < timercnt--)
952	{	1024	{
…		…
954	downheap ((WT *)timers, timercnt, w->active - 1);	1026	downheap ((WT *)timers, timercnt, w->active - 1);
955	}	1027	}
956		1028
957	w->at = w->repeat;	1029	w->at = w->repeat;
958		1030
959	ev_stop ((W)w);	1031	ev_stop (EV_A_ (W)w);
960	}	1032	}
961		1033
962	void	1034	void
963	ev_timer_again (struct ev_timer *w)	1035	ev_timer_again (EV_P_ struct ev_timer *w)
964	{	1036	{
965	if (ev_is_active (w))	1037	if (ev_is_active (w))
966	{	1038	{
967	if (w->repeat)	1039	if (w->repeat)
968	{	1040	{
969	w->at = now + w->repeat;	1041	w->at = mn_now + w->repeat;
970	downheap ((WT *)timers, timercnt, w->active - 1);	1042	downheap ((WT *)timers, timercnt, w->active - 1);
971	}	1043	}
972	else	1044	else
973	ev_timer_stop (w);	1045	ev_timer_stop (EV_A_ w);
974	}	1046	}
975	else if (w->repeat)	1047	else if (w->repeat)
976	ev_timer_start (w);	1048	ev_timer_start (EV_A_ w);
977	}	1049	}
978		1050
979	void	1051	void
980	ev_periodic_start (struct ev_periodic *w)	1052	ev_periodic_start (EV_P_ struct ev_periodic *w)
981	{	1053	{
982	if (ev_is_active (w))	1054	if (ev_is_active (w))
983	return;	1055	return;
984		1056
985	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1057	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
986		1058
987	/* this formula differs from the one in periodic_reify because we do not always round up */	1059	/* this formula differs from the one in periodic_reify because we do not always round up */
988	if (w->interval)	1060	if (w->interval)
989	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1061	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
990		1062
991	ev_start ((W)w, ++periodiccnt);	1063	ev_start (EV_A_ (W)w, ++periodiccnt);
992	array_needsize (periodics, periodicmax, periodiccnt, );	1064	array_needsize (periodics, periodicmax, periodiccnt, );
993	periodics [periodiccnt - 1] = w;	1065	periodics [periodiccnt - 1] = w;
994	upheap ((WT *)periodics, periodiccnt - 1);	1066	upheap ((WT *)periodics, periodiccnt - 1);
995	}	1067	}
996		1068
997	void	1069	void
998	ev_periodic_stop (struct ev_periodic *w)	1070	ev_periodic_stop (EV_P_ struct ev_periodic *w)
999	{	1071	{
1000	ev_clear_pending ((W)w);	1072	ev_clear_pending (EV_A_ (W)w);
1001	if (!ev_is_active (w))	1073	if (!ev_is_active (w))
1002	return;	1074	return;
1003		1075
1004	if (w->active < periodiccnt--)	1076	if (w->active < periodiccnt--)
1005	{	1077	{
1006	periodics [w->active - 1] = periodics [periodiccnt];	1078	periodics [w->active - 1] = periodics [periodiccnt];
1007	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1079	downheap ((WT *)periodics, periodiccnt, w->active - 1);
1008	}	1080	}
1009		1081
1010	ev_stop ((W)w);	1082	ev_stop (EV_A_ (W)w);
1011	}	1083	}
1012		1084
		1085	#ifndef SA_RESTART
		1086	# define SA_RESTART 0
		1087	#endif
		1088
1013	void	1089	void
1014	ev_signal_start (struct ev_signal *w)	1090	ev_signal_start (EV_P_ struct ev_signal *w)
1015	{	1091	{
1016	if (ev_is_active (w))	1092	if (ev_is_active (w))
1017	return;	1093	return;
1018		1094
1019	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1095	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1020		1096
1021	ev_start ((W)w, 1);	1097	ev_start (EV_A_ (W)w, 1);
1022	array_needsize (signals, signalmax, w->signum, signals_init);	1098	array_needsize (signals, signalmax, w->signum, signals_init);
1023	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1099	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1024		1100
1025	if (!w->next)	1101	if (!w->next)
1026	{	1102	{
1027	struct sigaction sa;	1103	struct sigaction sa;
1028	sa.sa_handler = sighandler;	1104	sa.sa_handler = sighandler;
1029	sigfillset (&sa.sa_mask);	1105	sigfillset (&sa.sa_mask);
1030	sa.sa_flags = 0;	1106	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1031	sigaction (w->signum, &sa, 0);	1107	sigaction (w->signum, &sa, 0);
1032	}	1108	}
1033	}	1109	}
1034		1110
1035	void	1111	void
1036	ev_signal_stop (struct ev_signal *w)	1112	ev_signal_stop (EV_P_ struct ev_signal *w)
1037	{	1113	{
1038	ev_clear_pending ((W)w);	1114	ev_clear_pending (EV_A_ (W)w);
1039	if (!ev_is_active (w))	1115	if (!ev_is_active (w))
1040	return;	1116	return;
1041		1117
1042	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1118	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1043	ev_stop ((W)w);	1119	ev_stop (EV_A_ (W)w);
1044		1120
1045	if (!signals [w->signum - 1].head)	1121	if (!signals [w->signum - 1].head)
1046	signal (w->signum, SIG_DFL);	1122	signal (w->signum, SIG_DFL);
1047	}	1123	}
1048		1124
1049	void	1125	void
1050	ev_idle_start (struct ev_idle *w)	1126	ev_idle_start (EV_P_ struct ev_idle *w)
1051	{	1127	{
1052	if (ev_is_active (w))	1128	if (ev_is_active (w))
1053	return;	1129	return;
1054		1130
1055	ev_start ((W)w, ++idlecnt);	1131	ev_start (EV_A_ (W)w, ++idlecnt);
1056	array_needsize (idles, idlemax, idlecnt, );	1132	array_needsize (idles, idlemax, idlecnt, );
1057	idles [idlecnt - 1] = w;	1133	idles [idlecnt - 1] = w;
1058	}	1134	}
1059		1135
1060	void	1136	void
1061	ev_idle_stop (struct ev_idle *w)	1137	ev_idle_stop (EV_P_ struct ev_idle *w)
1062	{	1138	{
1063	ev_clear_pending ((W)w);	1139	ev_clear_pending (EV_A_ (W)w);
1064	if (ev_is_active (w))	1140	if (ev_is_active (w))
1065	return;	1141	return;
1066		1142
1067	idles [w->active - 1] = idles [--idlecnt];	1143	idles [w->active - 1] = idles [--idlecnt];
1068	ev_stop ((W)w);	1144	ev_stop (EV_A_ (W)w);
1069	}	1145	}
1070		1146
1071	void	1147	void
1072	ev_prepare_start (struct ev_prepare *w)	1148	ev_prepare_start (EV_P_ struct ev_prepare *w)
1073	{	1149	{
1074	if (ev_is_active (w))	1150	if (ev_is_active (w))
1075	return;	1151	return;
1076		1152
1077	ev_start ((W)w, ++preparecnt);	1153	ev_start (EV_A_ (W)w, ++preparecnt);
1078	array_needsize (prepares, preparemax, preparecnt, );	1154	array_needsize (prepares, preparemax, preparecnt, );
1079	prepares [preparecnt - 1] = w;	1155	prepares [preparecnt - 1] = w;
1080	}	1156	}
1081		1157
1082	void	1158	void
1083	ev_prepare_stop (struct ev_prepare *w)	1159	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1084	{	1160	{
1085	ev_clear_pending ((W)w);	1161	ev_clear_pending (EV_A_ (W)w);
1086	if (ev_is_active (w))	1162	if (ev_is_active (w))
1087	return;	1163	return;
1088		1164
1089	prepares [w->active - 1] = prepares [--preparecnt];	1165	prepares [w->active - 1] = prepares [--preparecnt];
1090	ev_stop ((W)w);	1166	ev_stop (EV_A_ (W)w);
1091	}	1167	}
1092		1168
1093	void	1169	void
1094	ev_check_start (struct ev_check *w)	1170	ev_check_start (EV_P_ struct ev_check *w)
1095	{	1171	{
1096	if (ev_is_active (w))	1172	if (ev_is_active (w))
1097	return;	1173	return;
1098		1174
1099	ev_start ((W)w, ++checkcnt);	1175	ev_start (EV_A_ (W)w, ++checkcnt);
1100	array_needsize (checks, checkmax, checkcnt, );	1176	array_needsize (checks, checkmax, checkcnt, );
1101	checks [checkcnt - 1] = w;	1177	checks [checkcnt - 1] = w;
1102	}	1178	}
1103		1179
1104	void	1180	void
1105	ev_check_stop (struct ev_check *w)	1181	ev_check_stop (EV_P_ struct ev_check *w)
1106	{	1182	{
1107	ev_clear_pending ((W)w);	1183	ev_clear_pending (EV_A_ (W)w);
1108	if (ev_is_active (w))	1184	if (ev_is_active (w))
1109	return;	1185	return;
1110		1186
1111	checks [w->active - 1] = checks [--checkcnt];	1187	checks [w->active - 1] = checks [--checkcnt];
1112	ev_stop ((W)w);	1188	ev_stop (EV_A_ (W)w);
1113	}	1189	}
1114		1190
1115	void	1191	void
1116	ev_child_start (struct ev_child *w)	1192	ev_child_start (EV_P_ struct ev_child *w)
1117	{	1193	{
1118	if (ev_is_active (w))	1194	if (ev_is_active (w))
1119	return;	1195	return;
1120		1196
1121	ev_start ((W)w, 1);	1197	ev_start (EV_A_ (W)w, 1);
1122	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1198	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1123	}	1199	}
1124		1200
1125	void	1201	void
1126	ev_child_stop (struct ev_child *w)	1202	ev_child_stop (EV_P_ struct ev_child *w)
1127	{	1203	{
1128	ev_clear_pending ((W)w);	1204	ev_clear_pending (EV_A_ (W)w);
1129	if (ev_is_active (w))	1205	if (ev_is_active (w))
1130	return;	1206	return;
1131		1207
1132	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1208	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1133	ev_stop ((W)w);	1209	ev_stop (EV_A_ (W)w);
1134	}	1210	}
1135		1211
1136	/*****************************************************************************/	1212	/*****************************************************************************/
1137		1213
1138	struct ev_once	1214	struct ev_once
…		…
1142	void (cb)(int revents, void arg);	1218	void (cb)(int revents, void arg);
1143	void *arg;	1219	void *arg;
1144	};	1220	};
1145		1221
1146	static void	1222	static void
1147	once_cb (struct ev_once *once, int revents)	1223	once_cb (EV_P_ struct ev_once *once, int revents)
1148	{	1224	{
1149	void (cb)(int revents, void arg) = once->cb;	1225	void (cb)(int revents, void arg) = once->cb;
1150	void *arg = once->arg;	1226	void *arg = once->arg;
1151		1227
1152	ev_io_stop (&once->io);	1228	ev_io_stop (EV_A_ &once->io);
1153	ev_timer_stop (&once->to);	1229	ev_timer_stop (EV_A_ &once->to);
1154	free (once);	1230	free (once);
1155		1231
1156	cb (revents, arg);	1232	cb (revents, arg);
1157	}	1233	}
1158		1234
1159	static void	1235	static void
1160	once_cb_io (struct ev_io *w, int revents)	1236	once_cb_io (EV_P_ struct ev_io *w, int revents)
1161	{	1237	{
1162	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1238	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1163	}	1239	}
1164		1240
1165	static void	1241	static void
1166	once_cb_to (struct ev_timer *w, int revents)	1242	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1167	{	1243	{
1168	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1244	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1169	}	1245	}
1170		1246
1171	void	1247	void
1172	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1248	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1173	{	1249	{
1174	struct ev_once *once = malloc (sizeof (struct ev_once));	1250	struct ev_once *once = malloc (sizeof (struct ev_once));
1175		1251
1176	if (!once)	1252	if (!once)
1177	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1253	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1182		1258
1183	ev_watcher_init (&once->io, once_cb_io);	1259	ev_watcher_init (&once->io, once_cb_io);
1184	if (fd >= 0)	1260	if (fd >= 0)
1185	{	1261	{
1186	ev_io_set (&once->io, fd, events);	1262	ev_io_set (&once->io, fd, events);
1187	ev_io_start (&once->io);	1263	ev_io_start (EV_A_ &once->io);
1188	}	1264	}
1189		1265
1190	ev_watcher_init (&once->to, once_cb_to);	1266	ev_watcher_init (&once->to, once_cb_to);
1191	if (timeout >= 0.)	1267	if (timeout >= 0.)
1192	{	1268	{
1193	ev_timer_set (&once->to, timeout, 0.);	1269	ev_timer_set (&once->to, timeout, 0.);
1194	ev_timer_start (&once->to);	1270	ev_timer_start (EV_A_ &once->to);
1195	}	1271	}
1196	}	1272	}
1197	}	1273	}
1198		1274
1199	/*****************************************************************************/	1275	/*****************************************************************************/

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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 1.54 by root, Sun Nov 4 00:24:16 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 1.54 by root, Sun Nov 4 00:24:16 2007 UTC