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

Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.55 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>
…		…
42	#include <stdio.h>	42	#include <stdio.h>
43		43
44	#include <assert.h>	44	#include <assert.h>
45	#include <errno.h>	45	#include <errno.h>
46	#include <sys/types.h>	46	#include <sys/types.h>
		47	#ifndef WIN32
47	#include <sys/wait.h>	48	# include <sys/wait.h>
		49	#endif
48	#include <sys/time.h>	50	#include <sys/time.h>
49	#include <time.h>	51	#include <time.h>
50		52
51	/**/	53	/**/
52		54
…		…
56		58
57	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
59	#endif	61	#endif
60		62
61	#ifndef EV_USE_POLL	63	#ifndef EV_USEV_POLL
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	65	#endif
64		66
65	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
67	#endif	69	#endif
…		…
111		113
112	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
113	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
114	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
115		117
116	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
117	ev_tstamp ev_now;
118	int ev_method;
119
120	static int have_monotonic; /* runtime */
121
122	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
123	static void (*method_modify)(int fd, int oev, int nev);
124	static void (*method_poll)(ev_tstamp timeout);
125		119
126	/*****************************************************************************/	120	/*****************************************************************************/
127		121
128	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
129	ev_time (void)	156	ev_time (void)
130	{	157	{
131	#if EV_USE_REALTIME	158	#if EV_USE_REALTIME
132	struct timespec ts;	159	struct timespec ts;
133	clock_gettime (CLOCK_REALTIME, &ts);	160	clock_gettime (CLOCK_REALTIME, &ts);
…		…
137	gettimeofday (&tv, 0);	164	gettimeofday (&tv, 0);
138	return tv.tv_sec + tv.tv_usec * 1e-6;	165	return tv.tv_sec + tv.tv_usec * 1e-6;
139	#endif	166	#endif
140	}	167	}
141		168
142	static ev_tstamp	169	inline ev_tstamp
143	get_clock (void)	170	get_clock (void)
144	{	171	{
145	#if EV_USE_MONOTONIC	172	#if EV_USE_MONOTONIC
146	if (expect_true (have_monotonic))	173	if (expect_true (have_monotonic))
147	{	174	{
…		…
150	return ts.tv_sec + ts.tv_nsec * 1e-9;	177	return ts.tv_sec + ts.tv_nsec * 1e-9;
151	}	178	}
152	#endif	179	#endif
153		180
154	return ev_time ();	181	return ev_time ();
		182	}
		183
		184	ev_tstamp
		185	ev_now (EV_P)
		186	{
		187	return rt_now;
155	}	188	}
156		189
157	#define array_roundsize(base,n) ((n) \| 4 & ~3)	190	#define array_roundsize(base,n) ((n) \| 4 & ~3)
158		191
159	#define array_needsize(base,cur,cnt,init) \	192	#define array_needsize(base,cur,cnt,init) \
…		…
171	cur = newcnt; \	204	cur = newcnt; \
172	}	205	}
173		206
174	/*****************************************************************************/	207	/*****************************************************************************/
175		208
176	typedef struct
177	{
178	struct ev_io *head;
179	unsigned char events;
180	unsigned char reify;
181	} ANFD;
182
183	static ANFD *anfds;
184	static int anfdmax;
185
186	static void	209	static void
187	anfds_init (ANFD *base, int count)	210	anfds_init (ANFD *base, int count)
188	{	211	{
189	while (count--)	212	while (count--)
190	{	213	{
…		…
194		217
195	++base;	218	++base;
196	}	219	}
197	}	220	}
198		221
199	typedef struct
200	{
201	W w;
202	int events;
203	} ANPENDING;
204
205	static ANPENDING *pendings [NUMPRI];
206	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
207
208	static void	222	static void
209	event (W w, int events)	223	event (EV_P_ W w, int events)
210	{	224	{
211	if (w->pending)	225	if (w->pending)
212	{	226	{
213	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
214	return;	228	return;
…		…
219	pendings [ABSPRI (w)][w->pending - 1].w = w;	233	pendings [ABSPRI (w)][w->pending - 1].w = w;
220	pendings [ABSPRI (w)][w->pending - 1].events = events;	234	pendings [ABSPRI (w)][w->pending - 1].events = events;
221	}	235	}
222		236
223	static void	237	static void
224	queue_events (W *events, int eventcnt, int type)	238	queue_events (EV_P_ W *events, int eventcnt, int type)
225	{	239	{
226	int i;	240	int i;
227		241
228	for (i = 0; i < eventcnt; ++i)	242	for (i = 0; i < eventcnt; ++i)
229	event (events [i], type);	243	event (EV_A_ events [i], type);
230	}	244	}
231		245
232	static void	246	static void
233	fd_event (int fd, int events)	247	fd_event (EV_P_ int fd, int events)
234	{	248	{
235	ANFD *anfd = anfds + fd;	249	ANFD *anfd = anfds + fd;
236	struct ev_io *w;	250	struct ev_io *w;
237		251
238	for (w = anfd->head; w; w = w->next)	252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
239	{	253	{
240	int ev = w->events & events;	254	int ev = w->events & events;
241		255
242	if (ev)	256	if (ev)
243	event ((W)w, ev);	257	event (EV_A_ (W)w, ev);
244	}	258	}
245	}	259	}
246		260
247	/*****************************************************************************/	261	/*****************************************************************************/
248		262
249	static int *fdchanges;
250	static int fdchangemax, fdchangecnt;
251
252	static void	263	static void
253	fd_reify (void)	264	fd_reify (EV_P)
254	{	265	{
255	int i;	266	int i;
256		267
257	for (i = 0; i < fdchangecnt; ++i)	268	for (i = 0; i < fdchangecnt; ++i)
258	{	269	{
…		…
260	ANFD *anfd = anfds + fd;	271	ANFD *anfd = anfds + fd;
261	struct ev_io *w;	272	struct ev_io *w;
262		273
263	int events = 0;	274	int events = 0;
264		275
265	for (w = anfd->head; w; w = w->next)	276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
266	events \|= w->events;	277	events \|= w->events;
267		278
268	anfd->reify = 0;	279	anfd->reify = 0;
269		280
270	if (anfd->events != events)	281	if (anfd->events != events)
271	{	282	{
272	method_modify (fd, anfd->events, events);	283	method_modify (EV_A_ fd, anfd->events, events);
273	anfd->events = events;	284	anfd->events = events;
274	}	285	}
275	}	286	}
276		287
277	fdchangecnt = 0;	288	fdchangecnt = 0;
278	}	289	}
279		290
280	static void	291	static void
281	fd_change (int fd)	292	fd_change (EV_P_ int fd)
282	{	293	{
283	if (anfds [fd].reify \|\| fdchangecnt < 0)	294	if (anfds [fd].reify \|\| fdchangecnt < 0)
284	return;	295	return;
285		296
286	anfds [fd].reify = 1;	297	anfds [fd].reify = 1;
…		…
289	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
290	fdchanges [fdchangecnt - 1] = fd;	301	fdchanges [fdchangecnt - 1] = fd;
291	}	302	}
292		303
293	static void	304	static void
294	fd_kill (int fd)	305	fd_kill (EV_P_ int fd)
295	{	306	{
296	struct ev_io *w;	307	struct ev_io *w;
297		308
298	printf ("killing fd %d\n", fd);//D
299	while ((w = anfds [fd].head))	309	while ((w = (struct ev_io *)anfds [fd].head))
300	{	310	{
301	ev_io_stop (w);	311	ev_io_stop (EV_A_ w);
302	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
303	}	313	}
304	}	314	}
305		315
306	/* called on EBADF to verify fds */	316	/* called on EBADF to verify fds */
307	static void	317	static void
308	fd_ebadf (void)	318	fd_ebadf (EV_P)
309	{	319	{
310	int fd;	320	int fd;
311		321
312	for (fd = 0; fd < anfdmax; ++fd)	322	for (fd = 0; fd < anfdmax; ++fd)
313	if (anfds [fd].events)	323	if (anfds [fd].events)
314	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
315	fd_kill (fd);	325	fd_kill (EV_A_ fd);
316	}	326	}
317		327
318	/* 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 */
319	static void	329	static void
320	fd_enomem (void)	330	fd_enomem (EV_P)
321	{	331	{
322	int fd = anfdmax;	332	int fd = anfdmax;
323		333
324	while (fd--)	334	while (fd--)
325	if (anfds [fd].events)	335	if (anfds [fd].events)
326	{	336	{
327	close (fd);	337	close (fd);
328	fd_kill (fd);	338	fd_kill (EV_A_ fd);
329	return;	339	return;
330	}	340	}
331	}	341	}
332		342
333	/*****************************************************************************/	343	/*****************************************************************************/
334		344
335	static struct ev_timer **timers;
336	static int timermax, timercnt;
337
338	static struct ev_periodic **periodics;
339	static int periodicmax, periodiccnt;
340
341	static void	345	static void
342	upheap (WT *timers, int k)	346	upheap (WT *heap, int k)
343	{	347	{
344	WT w = timers [k];	348	WT w = heap [k];
345		349
346	while (k && timers [k >> 1]->at > w->at)	350	while (k && heap [k >> 1]->at > w->at)
347	{	351	{
348	timers [k] = timers [k >> 1];	352	heap [k] = heap [k >> 1];
349	timers [k]->active = k + 1;	353	heap [k]->active = k + 1;
350	k >>= 1;	354	k >>= 1;
351	}	355	}
352		356
353	timers [k] = w;	357	heap [k] = w;
354	timers [k]->active = k + 1;	358	heap [k]->active = k + 1;
355		359
356	}	360	}
357		361
358	static void	362	static void
359	downheap (WT *timers, int N, int k)	363	downheap (WT *heap, int N, int k)
360	{	364	{
361	WT w = timers [k];	365	WT w = heap [k];
362		366
363	while (k < (N >> 1))	367	while (k < (N >> 1))
364	{	368	{
365	int j = k << 1;	369	int j = k << 1;
366		370
367	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	371	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
368	++j;	372	++j;
369		373
370	if (w->at <= timers [j]->at)	374	if (w->at <= heap [j]->at)
371	break;	375	break;
372		376
373	timers [k] = timers [j];	377	heap [k] = heap [j];
374	timers [k]->active = k + 1;	378	heap [k]->active = k + 1;
375	k = j;	379	k = j;
376	}	380	}
377		381
378	timers [k] = w;	382	heap [k] = w;
379	timers [k]->active = k + 1;	383	heap [k]->active = k + 1;
380	}	384	}
381		385
382	/*****************************************************************************/	386	/*****************************************************************************/
383		387
384	typedef struct	388	typedef struct
385	{	389	{
386	struct ev_signal *head;	390	struct ev_watcher_list *head;
387	sig_atomic_t volatile gotsig;	391	sig_atomic_t volatile gotsig;
388	} ANSIG;	392	} ANSIG;
389		393
390	static ANSIG *signals;	394	static ANSIG *signals;
391	static int signalmax;	395	static int signalmax;
392		396
393	static int sigpipe [2];	397	static int sigpipe [2];
394	static sig_atomic_t volatile gotsig;	398	static sig_atomic_t volatile gotsig;
395	static struct ev_io sigev;
396		399
397	static void	400	static void
398	signals_init (ANSIG *base, int count)	401	signals_init (ANSIG *base, int count)
399	{	402	{
400	while (count--)	403	while (count--)
…		…
411	{	414	{
412	signals [signum - 1].gotsig = 1;	415	signals [signum - 1].gotsig = 1;
413		416
414	if (!gotsig)	417	if (!gotsig)
415	{	418	{
		419	int old_errno = errno;
416	gotsig = 1;	420	gotsig = 1;
417	write (sigpipe [1], &signum, 1);	421	write (sigpipe [1], &signum, 1);
		422	errno = old_errno;
418	}	423	}
419	}	424	}
420		425
421	static void	426	static void
422	sigcb (struct ev_io *iow, int revents)	427	sigcb (EV_P_ struct ev_io *iow, int revents)
423	{	428	{
424	struct ev_signal *w;	429	struct ev_watcher_list *w;
425	int signum;	430	int signum;
426		431
427	read (sigpipe [0], &revents, 1);	432	read (sigpipe [0], &revents, 1);
428	gotsig = 0;	433	gotsig = 0;
429		434
…		…
431	if (signals [signum].gotsig)	436	if (signals [signum].gotsig)
432	{	437	{
433	signals [signum].gotsig = 0;	438	signals [signum].gotsig = 0;
434		439
435	for (w = signals [signum].head; w; w = w->next)	440	for (w = signals [signum].head; w; w = w->next)
436	event ((W)w, EV_SIGNAL);	441	event (EV_A_ (W)w, EV_SIGNAL);
437	}	442	}
438	}	443	}
439		444
440	static void	445	static void
441	siginit (void)	446	siginit (EV_P)
442	{	447	{
		448	#ifndef WIN32
443	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	449	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
444	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	450	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
445		451
446	/* rather than sort out wether we really need nb, set it */	452	/* rather than sort out wether we really need nb, set it */
447	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	453	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
448	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	454	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		455	#endif
449		456
450	ev_io_set (&sigev, sigpipe [0], EV_READ);	457	ev_io_set (&sigev, sigpipe [0], EV_READ);
451	ev_io_start (&sigev);	458	ev_io_start (EV_A_ &sigev);
		459	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	460	}
453		461
454	/*****************************************************************************/	462	/*****************************************************************************/
455		463
456	static struct ev_idle **idles;	464	#ifndef WIN32
457	static int idlemax, idlecnt;
458
459	static struct ev_prepare **prepares;
460	static int preparemax, preparecnt;
461
462	static struct ev_check **checks;
463	static int checkmax, checkcnt;
464
465	/*****************************************************************************/
466
467	static struct ev_child *childs [PID_HASHSIZE];
468	static struct ev_signal childev;
469		465
470	#ifndef WCONTINUED	466	#ifndef WCONTINUED
471	# define WCONTINUED 0	467	# define WCONTINUED 0
472	#endif	468	#endif
473		469
474	static void	470	static void
475	childcb (struct ev_signal *sw, int revents)	471	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
476	{	472	{
477	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	{
478	int pid, status;	488	int pid, status;
479		489
480	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	490	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
481	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	491	{
482	if (w->pid == pid \|\| !w->pid)	492	/* make sure we are called again until all childs have been reaped */
483	{	493	event (EV_A_ (W)sw, EV_SIGNAL);
484	w->status = status;	494
485	event ((W)w, EV_CHILD);	495	child_reap (EV_A_ sw, pid, pid, status);
486	}	496	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		497	}
487	}	498	}
		499
		500	#endif
488		501
489	/*****************************************************************************/	502	/*****************************************************************************/
490		503
491	#if EV_USE_KQUEUE	504	#if EV_USE_KQUEUE
492	# include "ev_kqueue.c"	505	# include "ev_kqueue.c"
493	#endif	506	#endif
494	#if EV_USE_EPOLL	507	#if EV_USE_EPOLL
495	# include "ev_epoll.c"	508	# include "ev_epoll.c"
496	#endif	509	#endif
497	#if EV_USE_POLL	510	#if EV_USEV_POLL
498	# include "ev_poll.c"	511	# include "ev_poll.c"
499	#endif	512	#endif
500	#if EV_USE_SELECT	513	#if EV_USE_SELECT
501	# include "ev_select.c"	514	# include "ev_select.c"
502	#endif	515	#endif
…		…
511	ev_version_minor (void)	524	ev_version_minor (void)
512	{	525	{
513	return EV_VERSION_MINOR;	526	return EV_VERSION_MINOR;
514	}	527	}
515		528
516	/* 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 */
517	static int	530	static int
518	enable_secure ()	531	enable_secure (void)
519	{	532	{
		533	#ifdef WIN32
		534	return 0;
		535	#else
520	return getuid () != geteuid ()	536	return getuid () != geteuid ()
521	\|\| getgid () != getegid ();	537	\|\| getgid () != getegid ();
		538	#endif
522	}	539	}
523		540
524	int ev_init (int methods)	541	int
		542	ev_method (EV_P)
525	{	543	{
		544	return method;
		545	}
		546
		547	inline int
		548	loop_init (EV_P_ int methods)
		549	{
526	if (!ev_method)	550	if (!method)
527	{	551	{
528	#if EV_USE_MONOTONIC	552	#if EV_USE_MONOTONIC
529	{	553	{
530	struct timespec ts;	554	struct timespec ts;
531	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	555	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
532	have_monotonic = 1;	556	have_monotonic = 1;
533	}	557	}
534	#endif	558	#endif
535		559
536	ev_now = ev_time ();	560	rt_now = ev_time ();
537	now = get_clock ();	561	mn_now = get_clock ();
538	now_floor = now;	562	now_floor = mn_now;
539	diff = ev_now - now;	563	rtmn_diff = rt_now - mn_now;
540		564
541	if (pipe (sigpipe))	565	if (pipe (sigpipe))
542	return 0;	566	return 0;
543		567
544	if (methods == EVMETHOD_AUTO)	568	if (methods == EVMETHOD_AUTO)
545	if (!enable_secure () && getenv ("LIBEV_METHODS"))	569	if (!enable_secure () && getenv ("LIBmethodS"))
546	methods = atoi (getenv ("LIBEV_METHODS"));	570	methods = atoi (getenv ("LIBmethodS"));
547	else	571	else
548	methods = EVMETHOD_ANY;	572	methods = EVMETHOD_ANY;
549		573
550	ev_method = 0;	574	method = 0;
551	#if EV_USE_KQUEUE	575	#if EV_USE_KQUEUE
552	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
553	#endif	577	#endif
554	#if EV_USE_EPOLL	578	#if EV_USE_EPOLL
555	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
556	#endif	580	#endif
557	#if EV_USE_POLL	581	#if EV_USEV_POLL
558	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
559	#endif	583	#endif
560	#if EV_USE_SELECT	584	#if EV_USE_SELECT
561	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
562	#endif	586	#endif
563		587
564	if (ev_method)	588	if (method)
565	{	589	{
566	ev_watcher_init (&sigev, sigcb);	590	ev_watcher_init (&sigev, sigcb);
		591	ev_set_priority (&sigev, EV_MAXPRI);
567	siginit ();	592	siginit (EV_A);
568		593
		594	#ifndef WIN32
569	ev_signal_init (&childev, childcb, SIGCHLD);	595	ev_signal_init (&childev, childcb, SIGCHLD);
		596	ev_set_priority (&childev, EV_MAXPRI);
570	ev_signal_start (&childev);	597	ev_signal_start (EV_A_ &childev);
		598	ev_unref (EV_A); /* child watcher should not keep loop alive */
		599	#endif
571	}	600	}
572	}	601	}
573		602
574	return ev_method;	603	return method;
575	}	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
576		637
577	/*****************************************************************************/	638	/*****************************************************************************/
578		639
579	void	640	void
580	ev_fork_prepare (void)	641	ev_fork_prepare (void)
…		…
589	}	650	}
590		651
591	void	652	void
592	ev_fork_child (void)	653	ev_fork_child (void)
593	{	654	{
		655	/TODO/
		656	#if !EV_MULTIPLICITY
594	#if EV_USE_EPOLL	657	#if EV_USE_EPOLL
595	if (ev_method == EVMETHOD_EPOLL)	658	if (method == EVMETHOD_EPOLL)
596	epoll_postfork_child ();	659	epoll_postfork_child (EV_A);
597	#endif	660	#endif
598		661
599	ev_io_stop (&sigev);	662	ev_io_stop (EV_A_ &sigev);
600	close (sigpipe [0]);	663	close (sigpipe [0]);
601	close (sigpipe [1]);	664	close (sigpipe [1]);
602	pipe (sigpipe);	665	pipe (sigpipe);
603	siginit ();	666	siginit (EV_A);
		667	#endif
604	}	668	}
605		669
606	/*****************************************************************************/	670	/*****************************************************************************/
607		671
608	static void	672	static void
609	call_pending (void)	673	call_pending (EV_P)
610	{	674	{
611	int pri;	675	int pri;
612		676
613	for (pri = NUMPRI; pri--; )	677	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	678	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	680	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		681
618	if (p->w)	682	if (p->w)
619	{	683	{
620	p->w->pending = 0;	684	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	685	p->w->cb (EV_A_ p->w, p->events);
622	}	686	}
623	}	687	}
624	}	688	}
625		689
626	static void	690	static void
627	timers_reify (void)	691	timers_reify (EV_P)
628	{	692	{
629	while (timercnt && timers [0]->at <= now)	693	while (timercnt && timers [0]->at <= mn_now)
630	{	694	{
631	struct ev_timer *w = timers [0];	695	struct ev_timer *w = timers [0];
632		696
633	/* first reschedule or stop timer */	697	/* first reschedule or stop timer */
634	if (w->repeat)	698	if (w->repeat)
635	{	699	{
636	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.));
637	w->at = now + w->repeat;	701	w->at = mn_now + w->repeat;
638	downheap ((WT *)timers, timercnt, 0);	702	downheap ((WT *)timers, timercnt, 0);
639	}	703	}
640	else	704	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	705	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		706
643	event ((W)w, EV_TIMEOUT);	707	event (EV_A_ (W)w, EV_TIMEOUT);
644	}	708	}
645	}	709	}
646		710
647	static void	711	static void
648	periodics_reify (void)	712	periodics_reify (EV_P)
649	{	713	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	714	while (periodiccnt && periodics [0]->at <= rt_now)
651	{	715	{
652	struct ev_periodic *w = periodics [0];	716	struct ev_periodic *w = periodics [0];
653		717
654	/* first reschedule or stop timer */	718	/* first reschedule or stop timer */
655	if (w->interval)	719	if (w->interval)
656	{	720	{
657	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;
658	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));
659	downheap ((WT *)periodics, periodiccnt, 0);	723	downheap ((WT *)periodics, periodiccnt, 0);
660	}	724	}
661	else	725	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	726	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		727
664	event ((W)w, EV_PERIODIC);	728	event (EV_A_ (W)w, EV_PERIODIC);
665	}	729	}
666	}	730	}
667		731
668	static void	732	static void
669	periodics_reschedule (ev_tstamp diff)	733	periodics_reschedule (EV_P)
670	{	734	{
671	int i;	735	int i;
672		736
673	/* adjust periodics after time jump */	737	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	738	for (i = 0; i < periodiccnt; ++i)
675	{	739	{
676	struct ev_periodic *w = periodics [i];	740	struct ev_periodic *w = periodics [i];
677		741
678	if (w->interval)	742	if (w->interval)
679	{	743	{
680	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;
681		745
682	if (fabs (diff) >= 1e-4)	746	if (fabs (diff) >= 1e-4)
683	{	747	{
684	ev_periodic_stop (w);	748	ev_periodic_stop (EV_A_ w);
685	ev_periodic_start (w);	749	ev_periodic_start (EV_A_ w);
686		750
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */	751	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}	752	}
689	}	753	}
690	}	754	}
691	}	755	}
692		756
693	static int	757	inline int
694	time_update_monotonic (void)	758	time_update_monotonic (EV_P)
695	{	759	{
696	now = get_clock ();	760	mn_now = get_clock ();
697		761
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	762	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	763	{
700	ev_now = now + diff;	764	rt_now = rtmn_diff + mn_now;
701	return 0;	765	return 0;
702	}	766	}
703	else	767	else
704	{	768	{
705	now_floor = now;	769	now_floor = mn_now;
706	ev_now = ev_time ();	770	rt_now = ev_time ();
707	return 1;	771	return 1;
708	}	772	}
709	}	773	}
710		774
711	static void	775	static void
712	time_update (void)	776	time_update (EV_P)
713	{	777	{
714	int i;	778	int i;
715		779
716	#if EV_USE_MONOTONIC	780	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	781	if (expect_true (have_monotonic))
718	{	782	{
719	if (time_update_monotonic ())	783	if (time_update_monotonic (EV_A))
720	{	784	{
721	ev_tstamp odiff = diff;	785	ev_tstamp odiff = rtmn_diff;
722		786
723	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 */
724	{	788	{
725	diff = ev_now - now;	789	rtmn_diff = rt_now - mn_now;
726		790
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	791	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
728	return; /* all is well */	792	return; /* all is well */
729		793
730	ev_now = ev_time ();	794	rt_now = ev_time ();
731	now = get_clock ();	795	mn_now = get_clock ();
732	now_floor = now;	796	now_floor = mn_now;
733	}	797	}
734		798
735	periodics_reschedule (diff - odiff);	799	periodics_reschedule (EV_A);
736	/* 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) */
737	}	802	}
738	}	803	}
739	else	804	else
740	#endif	805	#endif
741	{	806	{
742	ev_now = ev_time ();	807	rt_now = ev_time ();
743		808
744	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))
745	{	810	{
746	periodics_reschedule (ev_now - now);	811	periodics_reschedule (EV_A);
747		812
748	/* 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 */
749	for (i = 0; i < timercnt; ++i)	814	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	815	timers [i]->at += rt_now - mn_now;
751	}	816	}
752		817
753	now = ev_now;	818	mn_now = rt_now;
754	}	819	}
755	}	820	}
756		821
757	int ev_loop_done;	822	void
		823	ev_ref (EV_P)
		824	{
		825	++activecnt;
		826	}
758		827
		828	void
		829	ev_unref (EV_P)
		830	{
		831	--activecnt;
		832	}
		833
		834	static int loop_done;
		835
		836	void
759	void ev_loop (int flags)	837	ev_loop (EV_P_ int flags)
760	{	838	{
761	double block;	839	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	840	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
763		841
764	do	842	do
765	{	843	{
766	/* queue check watchers (and execute them) */	844	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	845	if (expect_false (preparecnt))
768	{	846	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	847	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	848	call_pending (EV_A);
771	}	849	}
772		850
773	/* update fd-related kernel structures */	851	/* update fd-related kernel structures */
774	fd_reify ();	852	fd_reify (EV_A);
775		853
776	/* calculate blocking time */	854	/* calculate blocking time */
777		855
778	/* 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
779	always have timers, we just calculate it always */	857	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	858	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	859	if (expect_true (have_monotonic))
782	time_update_monotonic ();	860	time_update_monotonic (EV_A);
783	else	861	else
784	#endif	862	#endif
785	{	863	{
786	ev_now = ev_time ();	864	rt_now = ev_time ();
787	now = ev_now;	865	mn_now = rt_now;
788	}	866	}
789		867
790	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	868	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
791	block = 0.;	869	block = 0.;
792	else	870	else
793	{	871	{
794	block = MAX_BLOCKTIME;	872	block = MAX_BLOCKTIME;
795		873
796	if (timercnt)	874	if (timercnt)
797	{	875	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	876	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
799	if (block > to) block = to;	877	if (block > to) block = to;
800	}	878	}
801		879
802	if (periodiccnt)	880	if (periodiccnt)
803	{	881	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	882	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
805	if (block > to) block = to;	883	if (block > to) block = to;
806	}	884	}
807		885
808	if (block < 0.) block = 0.;	886	if (block < 0.) block = 0.;
809	}	887	}
810		888
811	method_poll (block);	889	method_poll (EV_A_ block);
812		890
813	/* update ev_now, do magic */	891	/* update rt_now, do magic */
814	time_update ();	892	time_update (EV_A);
815		893
816	/* queue pending timers and reschedule them */	894	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	895	timers_reify (EV_A); /* relative timers called last */
818	periodics_reify (); /* absolute timers called first */	896	periodics_reify (EV_A); /* absolute timers called first */
819		897
820	/* queue idle watchers unless io or timers are pending */	898	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	899	if (!pendingcnt)
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	900	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		901
824	/* queue check watchers, to be executed first */	902	/* queue check watchers, to be executed first */
825	if (checkcnt)	903	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	904	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		905
828	call_pending ();	906	call_pending (EV_A);
829	}	907	}
830	while (!ev_loop_done);	908	while (activecnt && !loop_done);
831		909
832	if (ev_loop_done != 2)	910	if (loop_done != 2)
833	ev_loop_done = 0;	911	loop_done = 0;
		912	}
		913
		914	void
		915	ev_unloop (EV_P_ int how)
		916	{
		917	loop_done = how;
834	}	918	}
835		919
836	/*****************************************************************************/	920	/*****************************************************************************/
837		921
838	static void	922	inline void
839	wlist_add (WL *head, WL elem)	923	wlist_add (WL *head, WL elem)
840	{	924	{
841	elem->next = *head;	925	elem->next = *head;
842	*head = elem;	926	*head = elem;
843	}	927	}
844		928
845	static void	929	inline void
846	wlist_del (WL *head, WL elem)	930	wlist_del (WL *head, WL elem)
847	{	931	{
848	while (*head)	932	while (*head)
849	{	933	{
850	if (*head == elem)	934	if (*head == elem)
…		…
855		939
856	head = &(*head)->next;	940	head = &(*head)->next;
857	}	941	}
858	}	942	}
859		943
860	static void	944	inline void
861	ev_clear_pending (W w)	945	ev_clear_pending (EV_P_ W w)
862	{	946	{
863	if (w->pending)	947	if (w->pending)
864	{	948	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	949	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	950	w->pending = 0;
867	}	951	}
868	}	952	}
869		953
870	static void	954	inline void
871	ev_start (W w, int active)	955	ev_start (EV_P_ W w, int active)
872	{	956	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	957	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	958	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		959
876	w->active = active;	960	w->active = active;
		961	ev_ref (EV_A);
877	}	962	}
878		963
879	static void	964	inline void
880	ev_stop (W w)	965	ev_stop (EV_P_ W w)
881	{	966	{
		967	ev_unref (EV_A);
882	w->active = 0;	968	w->active = 0;
883	}	969	}
884		970
885	/*****************************************************************************/	971	/*****************************************************************************/
886		972
887	void	973	void
888	ev_io_start (struct ev_io *w)	974	ev_io_start (EV_P_ struct ev_io *w)
889	{	975	{
890	int fd = w->fd;	976	int fd = w->fd;
891		977
892	if (ev_is_active (w))	978	if (ev_is_active (w))
893	return;	979	return;
894		980
895	assert (("ev_io_start called with negative fd", fd >= 0));	981	assert (("ev_io_start called with negative fd", fd >= 0));
896		982
897	ev_start ((W)w, 1);	983	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	984	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	985	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		986
901	fd_change (fd);	987	fd_change (EV_A_ fd);
902	}	988	}
903		989
904	void	990	void
905	ev_io_stop (struct ev_io *w)	991	ev_io_stop (EV_P_ struct ev_io *w)
906	{	992	{
907	ev_clear_pending ((W)w);	993	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	994	if (!ev_is_active (w))
909	return;	995	return;
910		996
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	997	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	998	ev_stop (EV_A_ (W)w);
913		999
914	fd_change (w->fd);	1000	fd_change (EV_A_ w->fd);
915	}	1001	}
916		1002
917	void	1003	void
918	ev_timer_start (struct ev_timer *w)	1004	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	1005	{
920	if (ev_is_active (w))	1006	if (ev_is_active (w))
921	return;	1007	return;
922		1008
923	w->at += now;	1009	w->at += mn_now;
924		1010
925	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.));
926		1012
927	ev_start ((W)w, ++timercnt);	1013	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	1014	array_needsize (timers, timermax, timercnt, );
929	timers [timercnt - 1] = w;	1015	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	1016	upheap ((WT *)timers, timercnt - 1);
931	}	1017	}
932		1018
933	void	1019	void
934	ev_timer_stop (struct ev_timer *w)	1020	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	1021	{
936	ev_clear_pending ((W)w);	1022	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1023	if (!ev_is_active (w))
938	return;	1024	return;
939		1025
940	if (w->active < timercnt--)	1026	if (w->active < timercnt--)
941	{	1027	{
…		…
943	downheap ((WT *)timers, timercnt, w->active - 1);	1029	downheap ((WT *)timers, timercnt, w->active - 1);
944	}	1030	}
945		1031
946	w->at = w->repeat;	1032	w->at = w->repeat;
947		1033
948	ev_stop ((W)w);	1034	ev_stop (EV_A_ (W)w);
949	}	1035	}
950		1036
951	void	1037	void
952	ev_timer_again (struct ev_timer *w)	1038	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	1039	{
954	if (ev_is_active (w))	1040	if (ev_is_active (w))
955	{	1041	{
956	if (w->repeat)	1042	if (w->repeat)
957	{	1043	{
958	w->at = now + w->repeat;	1044	w->at = mn_now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1045	downheap ((WT *)timers, timercnt, w->active - 1);
960	}	1046	}
961	else	1047	else
962	ev_timer_stop (w);	1048	ev_timer_stop (EV_A_ w);
963	}	1049	}
964	else if (w->repeat)	1050	else if (w->repeat)
965	ev_timer_start (w);	1051	ev_timer_start (EV_A_ w);
966	}	1052	}
967		1053
968	void	1054	void
969	ev_periodic_start (struct ev_periodic *w)	1055	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1056	{
971	if (ev_is_active (w))	1057	if (ev_is_active (w))
972	return;	1058	return;
973		1059
974	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.));
975		1061
976	/* 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 */
977	if (w->interval)	1063	if (w->interval)
978	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1064	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
979		1065
980	ev_start ((W)w, ++periodiccnt);	1066	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1067	array_needsize (periodics, periodicmax, periodiccnt, );
982	periodics [periodiccnt - 1] = w;	1068	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1069	upheap ((WT *)periodics, periodiccnt - 1);
984	}	1070	}
985		1071
986	void	1072	void
987	ev_periodic_stop (struct ev_periodic *w)	1073	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1074	{
989	ev_clear_pending ((W)w);	1075	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1076	if (!ev_is_active (w))
991	return;	1077	return;
992		1078
993	if (w->active < periodiccnt--)	1079	if (w->active < periodiccnt--)
994	{	1080	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1081	periodics [w->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1082	downheap ((WT *)periodics, periodiccnt, w->active - 1);
997	}	1083	}
998		1084
999	ev_stop ((W)w);	1085	ev_stop (EV_A_ (W)w);
1000	}	1086	}
1001		1087
		1088	#ifndef SA_RESTART
		1089	# define SA_RESTART 0
		1090	#endif
		1091
1002	void	1092	void
1003	ev_signal_start (struct ev_signal *w)	1093	ev_signal_start (EV_P_ struct ev_signal *w)
1004	{	1094	{
1005	if (ev_is_active (w))	1095	if (ev_is_active (w))
1006	return;	1096	return;
1007		1097
1008	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));
1009		1099
1010	ev_start ((W)w, 1);	1100	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1101	array_needsize (signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1102	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1103
1014	if (!w->next)	1104	if (!w->next)
1015	{	1105	{
1016	struct sigaction sa;	1106	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1107	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1108	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1109	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1110	sigaction (w->signum, &sa, 0);
1021	}	1111	}
1022	}	1112	}
1023		1113
1024	void	1114	void
1025	ev_signal_stop (struct ev_signal *w)	1115	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1116	{
1027	ev_clear_pending ((W)w);	1117	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1118	if (!ev_is_active (w))
1029	return;	1119	return;
1030		1120
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1121	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1122	ev_stop (EV_A_ (W)w);
1033		1123
1034	if (!signals [w->signum - 1].head)	1124	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1125	signal (w->signum, SIG_DFL);
1036	}	1126	}
1037		1127
1038	void	1128	void
1039	ev_idle_start (struct ev_idle *w)	1129	ev_idle_start (EV_P_ struct ev_idle *w)
1040	{	1130	{
1041	if (ev_is_active (w))	1131	if (ev_is_active (w))
1042	return;	1132	return;
1043		1133
1044	ev_start ((W)w, ++idlecnt);	1134	ev_start (EV_A_ (W)w, ++idlecnt);
1045	array_needsize (idles, idlemax, idlecnt, );	1135	array_needsize (idles, idlemax, idlecnt, );
1046	idles [idlecnt - 1] = w;	1136	idles [idlecnt - 1] = w;
1047	}	1137	}
1048		1138
1049	void	1139	void
1050	ev_idle_stop (struct ev_idle *w)	1140	ev_idle_stop (EV_P_ struct ev_idle *w)
1051	{	1141	{
1052	ev_clear_pending ((W)w);	1142	ev_clear_pending (EV_A_ (W)w);
1053	if (ev_is_active (w))	1143	if (ev_is_active (w))
1054	return;	1144	return;
1055		1145
1056	idles [w->active - 1] = idles [--idlecnt];	1146	idles [w->active - 1] = idles [--idlecnt];
1057	ev_stop ((W)w);	1147	ev_stop (EV_A_ (W)w);
1058	}	1148	}
1059		1149
1060	void	1150	void
1061	ev_prepare_start (struct ev_prepare *w)	1151	ev_prepare_start (EV_P_ struct ev_prepare *w)
1062	{	1152	{
1063	if (ev_is_active (w))	1153	if (ev_is_active (w))
1064	return;	1154	return;
1065		1155
1066	ev_start ((W)w, ++preparecnt);	1156	ev_start (EV_A_ (W)w, ++preparecnt);
1067	array_needsize (prepares, preparemax, preparecnt, );	1157	array_needsize (prepares, preparemax, preparecnt, );
1068	prepares [preparecnt - 1] = w;	1158	prepares [preparecnt - 1] = w;
1069	}	1159	}
1070		1160
1071	void	1161	void
1072	ev_prepare_stop (struct ev_prepare *w)	1162	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1073	{	1163	{
1074	ev_clear_pending ((W)w);	1164	ev_clear_pending (EV_A_ (W)w);
1075	if (ev_is_active (w))	1165	if (ev_is_active (w))
1076	return;	1166	return;
1077		1167
1078	prepares [w->active - 1] = prepares [--preparecnt];	1168	prepares [w->active - 1] = prepares [--preparecnt];
1079	ev_stop ((W)w);	1169	ev_stop (EV_A_ (W)w);
1080	}	1170	}
1081		1171
1082	void	1172	void
1083	ev_check_start (struct ev_check *w)	1173	ev_check_start (EV_P_ struct ev_check *w)
1084	{	1174	{
1085	if (ev_is_active (w))	1175	if (ev_is_active (w))
1086	return;	1176	return;
1087		1177
1088	ev_start ((W)w, ++checkcnt);	1178	ev_start (EV_A_ (W)w, ++checkcnt);
1089	array_needsize (checks, checkmax, checkcnt, );	1179	array_needsize (checks, checkmax, checkcnt, );
1090	checks [checkcnt - 1] = w;	1180	checks [checkcnt - 1] = w;
1091	}	1181	}
1092		1182
1093	void	1183	void
1094	ev_check_stop (struct ev_check *w)	1184	ev_check_stop (EV_P_ struct ev_check *w)
1095	{	1185	{
1096	ev_clear_pending ((W)w);	1186	ev_clear_pending (EV_A_ (W)w);
1097	if (ev_is_active (w))	1187	if (ev_is_active (w))
1098	return;	1188	return;
1099		1189
1100	checks [w->active - 1] = checks [--checkcnt];	1190	checks [w->active - 1] = checks [--checkcnt];
1101	ev_stop ((W)w);	1191	ev_stop (EV_A_ (W)w);
1102	}	1192	}
1103		1193
1104	void	1194	void
1105	ev_child_start (struct ev_child *w)	1195	ev_child_start (EV_P_ struct ev_child *w)
1106	{	1196	{
1107	if (ev_is_active (w))	1197	if (ev_is_active (w))
1108	return;	1198	return;
1109		1199
1110	ev_start ((W)w, 1);	1200	ev_start (EV_A_ (W)w, 1);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1201	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}	1202	}
1113		1203
1114	void	1204	void
1115	ev_child_stop (struct ev_child *w)	1205	ev_child_stop (EV_P_ struct ev_child *w)
1116	{	1206	{
1117	ev_clear_pending ((W)w);	1207	ev_clear_pending (EV_A_ (W)w);
1118	if (ev_is_active (w))	1208	if (ev_is_active (w))
1119	return;	1209	return;
1120		1210
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1211	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1212	ev_stop (EV_A_ (W)w);
1123	}	1213	}
1124		1214
1125	/*****************************************************************************/	1215	/*****************************************************************************/
1126		1216
1127	struct ev_once	1217	struct ev_once
…		…
1131	void (cb)(int revents, void arg);	1221	void (cb)(int revents, void arg);
1132	void *arg;	1222	void *arg;
1133	};	1223	};
1134		1224
1135	static void	1225	static void
1136	once_cb (struct ev_once *once, int revents)	1226	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1227	{
1138	void (cb)(int revents, void arg) = once->cb;	1228	void (cb)(int revents, void arg) = once->cb;
1139	void *arg = once->arg;	1229	void *arg = once->arg;
1140		1230
1141	ev_io_stop (&once->io);	1231	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1232	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1233	free (once);
1144		1234
1145	cb (revents, arg);	1235	cb (revents, arg);
1146	}	1236	}
1147		1237
1148	static void	1238	static void
1149	once_cb_io (struct ev_io *w, int revents)	1239	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1240	{
1151	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);
1152	}	1242	}
1153		1243
1154	static void	1244	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1245	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1246	{
1157	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);
1158	}	1248	}
1159		1249
1160	void	1250	void
1161	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)
1162	{	1252	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1253	struct ev_once *once = malloc (sizeof (struct ev_once));
1164		1254
1165	if (!once)	1255	if (!once)
1166	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1256	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1171		1261
1172	ev_watcher_init (&once->io, once_cb_io);	1262	ev_watcher_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1263	if (fd >= 0)
1174	{	1264	{
1175	ev_io_set (&once->io, fd, events);	1265	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1266	ev_io_start (EV_A_ &once->io);
1177	}	1267	}
1178		1268
1179	ev_watcher_init (&once->to, once_cb_to);	1269	ev_watcher_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1270	if (timeout >= 0.)
1181	{	1271	{
1182	ev_timer_set (&once->to, timeout, 0.);	1272	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1273	ev_timer_start (EV_A_ &once->to);
1184	}	1274	}
1185	}	1275	}
1186	}	1276	}
1187		1277
1188	/*****************************************************************************/	1278	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs. Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.55 by root, Sun Nov 4 00:39:24 2007 UTC