[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 1.54 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>
…		…
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	#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
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	static void
		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	#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
576		634
577	/*****************************************************************************/	635	/*****************************************************************************/
578		636
579	void	637	void
580	ev_fork_prepare (void)	638	ev_fork_prepare (void)
…		…
589	}	647	}
590		648
591	void	649	void
592	ev_fork_child (void)	650	ev_fork_child (void)
593	{	651	{
		652	/TODO/
		653	#if !EV_MULTIPLICITY
594	#if EV_USE_EPOLL	654	#if EV_USE_EPOLL
595	if (ev_method == EVMETHOD_EPOLL)	655	if (method == EVMETHOD_EPOLL)
596	epoll_postfork_child ();	656	epoll_postfork_child (EV_A);
597	#endif	657	#endif
598		658
599	ev_io_stop (&sigev);	659	ev_io_stop (EV_A_ &sigev);
600	close (sigpipe [0]);	660	close (sigpipe [0]);
601	close (sigpipe [1]);	661	close (sigpipe [1]);
602	pipe (sigpipe);	662	pipe (sigpipe);
603	siginit ();	663	siginit (EV_A);
		664	#endif
604	}	665	}
605		666
606	/*****************************************************************************/	667	/*****************************************************************************/
607		668
608	static void	669	static void
609	call_pending (void)	670	call_pending (EV_P)
610	{	671	{
611	int pri;	672	int pri;
612		673
613	for (pri = NUMPRI; pri--; )	674	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	675	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	677	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		678
618	if (p->w)	679	if (p->w)
619	{	680	{
620	p->w->pending = 0;	681	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	682	p->w->cb (EV_A_ p->w, p->events);
622	}	683	}
623	}	684	}
624	}	685	}
625		686
626	static void	687	static void
627	timers_reify (void)	688	timers_reify (EV_P)
628	{	689	{
629	while (timercnt && timers [0]->at <= now)	690	while (timercnt && timers [0]->at <= mn_now)
630	{	691	{
631	struct ev_timer *w = timers [0];	692	struct ev_timer *w = timers [0];
632		693
633	/* first reschedule or stop timer */	694	/* first reschedule or stop timer */
634	if (w->repeat)	695	if (w->repeat)
635	{	696	{
636	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.));
637	w->at = now + w->repeat;	698	w->at = mn_now + w->repeat;
638	downheap ((WT *)timers, timercnt, 0);	699	downheap ((WT *)timers, timercnt, 0);
639	}	700	}
640	else	701	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	702	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		703
643	event ((W)w, EV_TIMEOUT);	704	event (EV_A_ (W)w, EV_TIMEOUT);
644	}	705	}
645	}	706	}
646		707
647	static void	708	static void
648	periodics_reify (void)	709	periodics_reify (EV_P)
649	{	710	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	711	while (periodiccnt && periodics [0]->at <= rt_now)
651	{	712	{
652	struct ev_periodic *w = periodics [0];	713	struct ev_periodic *w = periodics [0];
653		714
654	/* first reschedule or stop timer */	715	/* first reschedule or stop timer */
655	if (w->interval)	716	if (w->interval)
656	{	717	{
657	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;
658	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));
659	downheap ((WT *)periodics, periodiccnt, 0);	720	downheap ((WT *)periodics, periodiccnt, 0);
660	}	721	}
661	else	722	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	723	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		724
664	event ((W)w, EV_PERIODIC);	725	event (EV_A_ (W)w, EV_PERIODIC);
665	}	726	}
666	}	727	}
667		728
668	static void	729	static void
669	periodics_reschedule (ev_tstamp diff)	730	periodics_reschedule (EV_P)
670	{	731	{
671	int i;	732	int i;
672		733
673	/* adjust periodics after time jump */	734	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	735	for (i = 0; i < periodiccnt; ++i)
675	{	736	{
676	struct ev_periodic *w = periodics [i];	737	struct ev_periodic *w = periodics [i];
677		738
678	if (w->interval)	739	if (w->interval)
679	{	740	{
680	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;
681		742
682	if (fabs (diff) >= 1e-4)	743	if (fabs (diff) >= 1e-4)
683	{	744	{
684	ev_periodic_stop (w);	745	ev_periodic_stop (EV_A_ w);
685	ev_periodic_start (w);	746	ev_periodic_start (EV_A_ w);
686		747
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */	748	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}	749	}
689	}	750	}
690	}	751	}
691	}	752	}
692		753
693	static int	754	inline int
694	time_update_monotonic (void)	755	time_update_monotonic (EV_P)
695	{	756	{
696	now = get_clock ();	757	mn_now = get_clock ();
697		758
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	759	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	760	{
700	ev_now = now + diff;	761	rt_now = rtmn_diff + mn_now;
701	return 0;	762	return 0;
702	}	763	}
703	else	764	else
704	{	765	{
705	now_floor = now;	766	now_floor = mn_now;
706	ev_now = ev_time ();	767	rt_now = ev_time ();
707	return 1;	768	return 1;
708	}	769	}
709	}	770	}
710		771
711	static void	772	static void
712	time_update (void)	773	time_update (EV_P)
713	{	774	{
714	int i;	775	int i;
715		776
716	#if EV_USE_MONOTONIC	777	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	778	if (expect_true (have_monotonic))
718	{	779	{
719	if (time_update_monotonic ())	780	if (time_update_monotonic (EV_A))
720	{	781	{
721	ev_tstamp odiff = diff;	782	ev_tstamp odiff = rtmn_diff;
722		783
723	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 */
724	{	785	{
725	diff = ev_now - now;	786	rtmn_diff = rt_now - mn_now;
726		787
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	788	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
728	return; /* all is well */	789	return; /* all is well */
729		790
730	ev_now = ev_time ();	791	rt_now = ev_time ();
731	now = get_clock ();	792	mn_now = get_clock ();
732	now_floor = now;	793	now_floor = mn_now;
733	}	794	}
734		795
735	periodics_reschedule (diff - odiff);	796	periodics_reschedule (EV_A);
736	/* 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) */
737	}	799	}
738	}	800	}
739	else	801	else
740	#endif	802	#endif
741	{	803	{
742	ev_now = ev_time ();	804	rt_now = ev_time ();
743		805
744	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))
745	{	807	{
746	periodics_reschedule (ev_now - now);	808	periodics_reschedule (EV_A);
747		809
748	/* 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 */
749	for (i = 0; i < timercnt; ++i)	811	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	812	timers [i]->at += rt_now - mn_now;
751	}	813	}
752		814
753	now = ev_now;	815	mn_now = rt_now;
754	}	816	}
755	}	817	}
756		818
757	int ev_loop_done;	819	void
		820	ev_ref (EV_P)
		821	{
		822	++activecnt;
		823	}
758		824
		825	void
		826	ev_unref (EV_P)
		827	{
		828	--activecnt;
		829	}
		830
		831	static int loop_done;
		832
		833	void
759	void ev_loop (int flags)	834	ev_loop (EV_P_ int flags)
760	{	835	{
761	double block;	836	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	837	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
763		838
764	do	839	do
765	{	840	{
766	/* queue check watchers (and execute them) */	841	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	842	if (expect_false (preparecnt))
768	{	843	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	844	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	845	call_pending (EV_A);
771	}	846	}
772		847
773	/* update fd-related kernel structures */	848	/* update fd-related kernel structures */
774	fd_reify ();	849	fd_reify (EV_A);
775		850
776	/* calculate blocking time */	851	/* calculate blocking time */
777		852
778	/* 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
779	always have timers, we just calculate it always */	854	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	855	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	856	if (expect_true (have_monotonic))
782	time_update_monotonic ();	857	time_update_monotonic (EV_A);
783	else	858	else
784	#endif	859	#endif
785	{	860	{
786	ev_now = ev_time ();	861	rt_now = ev_time ();
787	now = ev_now;	862	mn_now = rt_now;
788	}	863	}
789		864
790	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	865	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
791	block = 0.;	866	block = 0.;
792	else	867	else
793	{	868	{
794	block = MAX_BLOCKTIME;	869	block = MAX_BLOCKTIME;
795		870
796	if (timercnt)	871	if (timercnt)
797	{	872	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	873	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
799	if (block > to) block = to;	874	if (block > to) block = to;
800	}	875	}
801		876
802	if (periodiccnt)	877	if (periodiccnt)
803	{	878	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	879	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
805	if (block > to) block = to;	880	if (block > to) block = to;
806	}	881	}
807		882
808	if (block < 0.) block = 0.;	883	if (block < 0.) block = 0.;
809	}	884	}
810		885
811	method_poll (block);	886	method_poll (EV_A_ block);
812		887
813	/* update ev_now, do magic */	888	/* update rt_now, do magic */
814	time_update ();	889	time_update (EV_A);
815		890
816	/* queue pending timers and reschedule them */	891	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	892	timers_reify (EV_A); /* relative timers called last */
818	periodics_reify (); /* absolute timers called first */	893	periodics_reify (EV_A); /* absolute timers called first */
819		894
820	/* queue idle watchers unless io or timers are pending */	895	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	896	if (!pendingcnt)
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	897	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		898
824	/* queue check watchers, to be executed first */	899	/* queue check watchers, to be executed first */
825	if (checkcnt)	900	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	901	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		902
828	call_pending ();	903	call_pending (EV_A);
829	}	904	}
830	while (!ev_loop_done);	905	while (activecnt && !loop_done);
831		906
832	if (ev_loop_done != 2)	907	if (loop_done != 2)
833	ev_loop_done = 0;	908	loop_done = 0;
		909	}
		910
		911	void
		912	ev_unloop (EV_P_ int how)
		913	{
		914	loop_done = how;
834	}	915	}
835		916
836	/*****************************************************************************/	917	/*****************************************************************************/
837		918
838	static void	919	inline void
839	wlist_add (WL *head, WL elem)	920	wlist_add (WL *head, WL elem)
840	{	921	{
841	elem->next = *head;	922	elem->next = *head;
842	*head = elem;	923	*head = elem;
843	}	924	}
844		925
845	static void	926	inline void
846	wlist_del (WL *head, WL elem)	927	wlist_del (WL *head, WL elem)
847	{	928	{
848	while (*head)	929	while (*head)
849	{	930	{
850	if (*head == elem)	931	if (*head == elem)
…		…
855		936
856	head = &(*head)->next;	937	head = &(*head)->next;
857	}	938	}
858	}	939	}
859		940
860	static void	941	inline void
861	ev_clear_pending (W w)	942	ev_clear_pending (EV_P_ W w)
862	{	943	{
863	if (w->pending)	944	if (w->pending)
864	{	945	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	946	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	947	w->pending = 0;
867	}	948	}
868	}	949	}
869		950
870	static void	951	inline void
871	ev_start (W w, int active)	952	ev_start (EV_P_ W w, int active)
872	{	953	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	954	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	955	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		956
876	w->active = active;	957	w->active = active;
		958	ev_ref (EV_A);
877	}	959	}
878		960
879	static void	961	inline void
880	ev_stop (W w)	962	ev_stop (EV_P_ W w)
881	{	963	{
		964	ev_unref (EV_A);
882	w->active = 0;	965	w->active = 0;
883	}	966	}
884		967
885	/*****************************************************************************/	968	/*****************************************************************************/
886		969
887	void	970	void
888	ev_io_start (struct ev_io *w)	971	ev_io_start (EV_P_ struct ev_io *w)
889	{	972	{
890	int fd = w->fd;	973	int fd = w->fd;
891		974
892	if (ev_is_active (w))	975	if (ev_is_active (w))
893	return;	976	return;
894		977
895	assert (("ev_io_start called with negative fd", fd >= 0));	978	assert (("ev_io_start called with negative fd", fd >= 0));
896		979
897	ev_start ((W)w, 1);	980	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	981	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	982	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		983
901	fd_change (fd);	984	fd_change (EV_A_ fd);
902	}	985	}
903		986
904	void	987	void
905	ev_io_stop (struct ev_io *w)	988	ev_io_stop (EV_P_ struct ev_io *w)
906	{	989	{
907	ev_clear_pending ((W)w);	990	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	991	if (!ev_is_active (w))
909	return;	992	return;
910		993
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	994	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	995	ev_stop (EV_A_ (W)w);
913		996
914	fd_change (w->fd);	997	fd_change (EV_A_ w->fd);
915	}	998	}
916		999
917	void	1000	void
918	ev_timer_start (struct ev_timer *w)	1001	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	1002	{
920	if (ev_is_active (w))	1003	if (ev_is_active (w))
921	return;	1004	return;
922		1005
923	w->at += now;	1006	w->at += mn_now;
924		1007
925	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.));
926		1009
927	ev_start ((W)w, ++timercnt);	1010	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	1011	array_needsize (timers, timermax, timercnt, );
929	timers [timercnt - 1] = w;	1012	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	1013	upheap ((WT *)timers, timercnt - 1);
931	}	1014	}
932		1015
933	void	1016	void
934	ev_timer_stop (struct ev_timer *w)	1017	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	1018	{
936	ev_clear_pending ((W)w);	1019	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1020	if (!ev_is_active (w))
938	return;	1021	return;
939		1022
940	if (w->active < timercnt--)	1023	if (w->active < timercnt--)
941	{	1024	{
…		…
943	downheap ((WT *)timers, timercnt, w->active - 1);	1026	downheap ((WT *)timers, timercnt, w->active - 1);
944	}	1027	}
945		1028
946	w->at = w->repeat;	1029	w->at = w->repeat;
947		1030
948	ev_stop ((W)w);	1031	ev_stop (EV_A_ (W)w);
949	}	1032	}
950		1033
951	void	1034	void
952	ev_timer_again (struct ev_timer *w)	1035	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	1036	{
954	if (ev_is_active (w))	1037	if (ev_is_active (w))
955	{	1038	{
956	if (w->repeat)	1039	if (w->repeat)
957	{	1040	{
958	w->at = now + w->repeat;	1041	w->at = mn_now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1042	downheap ((WT *)timers, timercnt, w->active - 1);
960	}	1043	}
961	else	1044	else
962	ev_timer_stop (w);	1045	ev_timer_stop (EV_A_ w);
963	}	1046	}
964	else if (w->repeat)	1047	else if (w->repeat)
965	ev_timer_start (w);	1048	ev_timer_start (EV_A_ w);
966	}	1049	}
967		1050
968	void	1051	void
969	ev_periodic_start (struct ev_periodic *w)	1052	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1053	{
971	if (ev_is_active (w))	1054	if (ev_is_active (w))
972	return;	1055	return;
973		1056
974	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.));
975		1058
976	/* 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 */
977	if (w->interval)	1060	if (w->interval)
978	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1061	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
979		1062
980	ev_start ((W)w, ++periodiccnt);	1063	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1064	array_needsize (periodics, periodicmax, periodiccnt, );
982	periodics [periodiccnt - 1] = w;	1065	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1066	upheap ((WT *)periodics, periodiccnt - 1);
984	}	1067	}
985		1068
986	void	1069	void
987	ev_periodic_stop (struct ev_periodic *w)	1070	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1071	{
989	ev_clear_pending ((W)w);	1072	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1073	if (!ev_is_active (w))
991	return;	1074	return;
992		1075
993	if (w->active < periodiccnt--)	1076	if (w->active < periodiccnt--)
994	{	1077	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1078	periodics [w->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1079	downheap ((WT *)periodics, periodiccnt, w->active - 1);
997	}	1080	}
998		1081
999	ev_stop ((W)w);	1082	ev_stop (EV_A_ (W)w);
1000	}	1083	}
1001		1084
		1085	#ifndef SA_RESTART
		1086	# define SA_RESTART 0
		1087	#endif
		1088
1002	void	1089	void
1003	ev_signal_start (struct ev_signal *w)	1090	ev_signal_start (EV_P_ struct ev_signal *w)
1004	{	1091	{
1005	if (ev_is_active (w))	1092	if (ev_is_active (w))
1006	return;	1093	return;
1007		1094
1008	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));
1009		1096
1010	ev_start ((W)w, 1);	1097	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1098	array_needsize (signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1099	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1100
1014	if (!w->next)	1101	if (!w->next)
1015	{	1102	{
1016	struct sigaction sa;	1103	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1104	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1105	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1106	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1107	sigaction (w->signum, &sa, 0);
1021	}	1108	}
1022	}	1109	}
1023		1110
1024	void	1111	void
1025	ev_signal_stop (struct ev_signal *w)	1112	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1113	{
1027	ev_clear_pending ((W)w);	1114	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1115	if (!ev_is_active (w))
1029	return;	1116	return;
1030		1117
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1118	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1119	ev_stop (EV_A_ (W)w);
1033		1120
1034	if (!signals [w->signum - 1].head)	1121	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1122	signal (w->signum, SIG_DFL);
1036	}	1123	}
1037		1124
1038	void	1125	void
1039	ev_idle_start (struct ev_idle *w)	1126	ev_idle_start (EV_P_ struct ev_idle *w)
1040	{	1127	{
1041	if (ev_is_active (w))	1128	if (ev_is_active (w))
1042	return;	1129	return;
1043		1130
1044	ev_start ((W)w, ++idlecnt);	1131	ev_start (EV_A_ (W)w, ++idlecnt);
1045	array_needsize (idles, idlemax, idlecnt, );	1132	array_needsize (idles, idlemax, idlecnt, );
1046	idles [idlecnt - 1] = w;	1133	idles [idlecnt - 1] = w;
1047	}	1134	}
1048		1135
1049	void	1136	void
1050	ev_idle_stop (struct ev_idle *w)	1137	ev_idle_stop (EV_P_ struct ev_idle *w)
1051	{	1138	{
1052	ev_clear_pending ((W)w);	1139	ev_clear_pending (EV_A_ (W)w);
1053	if (ev_is_active (w))	1140	if (ev_is_active (w))
1054	return;	1141	return;
1055		1142
1056	idles [w->active - 1] = idles [--idlecnt];	1143	idles [w->active - 1] = idles [--idlecnt];
1057	ev_stop ((W)w);	1144	ev_stop (EV_A_ (W)w);
1058	}	1145	}
1059		1146
1060	void	1147	void
1061	ev_prepare_start (struct ev_prepare *w)	1148	ev_prepare_start (EV_P_ struct ev_prepare *w)
1062	{	1149	{
1063	if (ev_is_active (w))	1150	if (ev_is_active (w))
1064	return;	1151	return;
1065		1152
1066	ev_start ((W)w, ++preparecnt);	1153	ev_start (EV_A_ (W)w, ++preparecnt);
1067	array_needsize (prepares, preparemax, preparecnt, );	1154	array_needsize (prepares, preparemax, preparecnt, );
1068	prepares [preparecnt - 1] = w;	1155	prepares [preparecnt - 1] = w;
1069	}	1156	}
1070		1157
1071	void	1158	void
1072	ev_prepare_stop (struct ev_prepare *w)	1159	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1073	{	1160	{
1074	ev_clear_pending ((W)w);	1161	ev_clear_pending (EV_A_ (W)w);
1075	if (ev_is_active (w))	1162	if (ev_is_active (w))
1076	return;	1163	return;
1077		1164
1078	prepares [w->active - 1] = prepares [--preparecnt];	1165	prepares [w->active - 1] = prepares [--preparecnt];
1079	ev_stop ((W)w);	1166	ev_stop (EV_A_ (W)w);
1080	}	1167	}
1081		1168
1082	void	1169	void
1083	ev_check_start (struct ev_check *w)	1170	ev_check_start (EV_P_ struct ev_check *w)
1084	{	1171	{
1085	if (ev_is_active (w))	1172	if (ev_is_active (w))
1086	return;	1173	return;
1087		1174
1088	ev_start ((W)w, ++checkcnt);	1175	ev_start (EV_A_ (W)w, ++checkcnt);
1089	array_needsize (checks, checkmax, checkcnt, );	1176	array_needsize (checks, checkmax, checkcnt, );
1090	checks [checkcnt - 1] = w;	1177	checks [checkcnt - 1] = w;
1091	}	1178	}
1092		1179
1093	void	1180	void
1094	ev_check_stop (struct ev_check *w)	1181	ev_check_stop (EV_P_ struct ev_check *w)
1095	{	1182	{
1096	ev_clear_pending ((W)w);	1183	ev_clear_pending (EV_A_ (W)w);
1097	if (ev_is_active (w))	1184	if (ev_is_active (w))
1098	return;	1185	return;
1099		1186
1100	checks [w->active - 1] = checks [--checkcnt];	1187	checks [w->active - 1] = checks [--checkcnt];
1101	ev_stop ((W)w);	1188	ev_stop (EV_A_ (W)w);
1102	}	1189	}
1103		1190
1104	void	1191	void
1105	ev_child_start (struct ev_child *w)	1192	ev_child_start (EV_P_ struct ev_child *w)
1106	{	1193	{
1107	if (ev_is_active (w))	1194	if (ev_is_active (w))
1108	return;	1195	return;
1109		1196
1110	ev_start ((W)w, 1);	1197	ev_start (EV_A_ (W)w, 1);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1198	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}	1199	}
1113		1200
1114	void	1201	void
1115	ev_child_stop (struct ev_child *w)	1202	ev_child_stop (EV_P_ struct ev_child *w)
1116	{	1203	{
1117	ev_clear_pending ((W)w);	1204	ev_clear_pending (EV_A_ (W)w);
1118	if (ev_is_active (w))	1205	if (ev_is_active (w))
1119	return;	1206	return;
1120		1207
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1208	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1209	ev_stop (EV_A_ (W)w);
1123	}	1210	}
1124		1211
1125	/*****************************************************************************/	1212	/*****************************************************************************/
1126		1213
1127	struct ev_once	1214	struct ev_once
…		…
1131	void (cb)(int revents, void arg);	1218	void (cb)(int revents, void arg);
1132	void *arg;	1219	void *arg;
1133	};	1220	};
1134		1221
1135	static void	1222	static void
1136	once_cb (struct ev_once *once, int revents)	1223	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1224	{
1138	void (cb)(int revents, void arg) = once->cb;	1225	void (cb)(int revents, void arg) = once->cb;
1139	void *arg = once->arg;	1226	void *arg = once->arg;
1140		1227
1141	ev_io_stop (&once->io);	1228	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1229	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1230	free (once);
1144		1231
1145	cb (revents, arg);	1232	cb (revents, arg);
1146	}	1233	}
1147		1234
1148	static void	1235	static void
1149	once_cb_io (struct ev_io *w, int revents)	1236	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1237	{
1151	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);
1152	}	1239	}
1153		1240
1154	static void	1241	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1242	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1243	{
1157	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);
1158	}	1245	}
1159		1246
1160	void	1247	void
1161	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)
1162	{	1249	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1250	struct ev_once *once = malloc (sizeof (struct ev_once));
1164		1251
1165	if (!once)	1252	if (!once)
1166	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1253	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1171		1258
1172	ev_watcher_init (&once->io, once_cb_io);	1259	ev_watcher_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1260	if (fd >= 0)
1174	{	1261	{
1175	ev_io_set (&once->io, fd, events);	1262	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1263	ev_io_start (EV_A_ &once->io);
1177	}	1264	}
1178		1265
1179	ev_watcher_init (&once->to, once_cb_to);	1266	ev_watcher_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1267	if (timeout >= 0.)
1181	{	1268	{
1182	ev_timer_set (&once->to, timeout, 0.);	1269	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1270	ev_timer_start (EV_A_ &once->to);
1184	}	1271	}
1185	}	1272	}
1186	}	1273	}
1187		1274
1188	/*****************************************************************************/	1275	/*****************************************************************************/

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