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

Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
33	#endif	33	#endif
34		34
35	#include <math.h>	35	#include <math.h>
36	#include <stdlib.h>	36	#include <stdlib.h>
…		…
42	#include <stdio.h>	42	#include <stdio.h>
43		43
44	#include <assert.h>	44	#include <assert.h>
45	#include <errno.h>	45	#include <errno.h>
46	#include <sys/types.h>	46	#include <sys/types.h>
		47	#ifndef WIN32
47	#include <sys/wait.h>	48	# include <sys/wait.h>
		49	#endif
48	#include <sys/time.h>	50	#include <sys/time.h>
49	#include <time.h>	51	#include <time.h>
50		52
51	/**/	53	/**/
52		54
…		…
56		58
57	#ifndef EV_USE_SELECT	59	#ifndef EV_USE_SELECT
58	# define EV_USE_SELECT 1	60	# define EV_USE_SELECT 1
59	#endif	61	#endif
60		62
61	#ifndef EV_USE_POLL	63	#ifndef EV_USEV_POLL
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	65	#endif
64		66
65	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	68	# define EV_USE_EPOLL 0
		69	#endif
		70
		71	#ifndef EV_USE_KQUEUE
		72	# define EV_USE_KQUEUE 0
67	#endif	73	#endif
68		74
69	#ifndef EV_USE_REALTIME	75	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	76	# define EV_USE_REALTIME 1
71	#endif	77	#endif
…		…
100	#endif	106	#endif
101		107
102	#define expect_false(expr) expect ((expr) != 0, 0)	108	#define expect_false(expr) expect ((expr) != 0, 0)
103	#define expect_true(expr) expect ((expr) != 0, 1)	109	#define expect_true(expr) expect ((expr) != 0, 1)
104		110
		111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		113
105	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
106	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
107	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
108		117
109	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */
110	ev_tstamp ev_now;	119	static ev_tstamp rt_now;
111	int ev_method;	120	static int method;
112		121
113	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
114		123
115	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
116	static void (*method_modify)(int fd, int oev, int nev);	125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
117	static void (*method_poll)(ev_tstamp timeout);	126	static void (*method_poll)(EV_P_ ev_tstamp timeout);
		127
		128	static int activecnt; /* number of active events */
		129
		130	#if EV_USE_SELECT
		131	static unsigned char vec_ri, vec_ro, vec_wi, vec_wo;
		132	static int vec_max;
		133	#endif
		134
		135	#if EV_USEV_POLL
		136	static struct pollfd *polls;
		137	static int pollmax, pollcnt;
		138	static int pollidxs; / maps fds into structure indices */
		139	static int pollidxmax;
		140	#endif
		141
		142	#if EV_USE_EPOLL
		143	static int epoll_fd = -1;
		144
		145	static struct epoll_event *events;
		146	static int eventmax;
		147	#endif
		148
		149	#if EV_USE_KQUEUE
		150	static int kqueue_fd;
		151	static struct kevent *kqueue_changes;
		152	static int kqueue_changemax, kqueue_changecnt;
		153	static struct kevent *kqueue_events;
		154	static int kqueue_eventmax;
		155	#endif
118		156
119	/*****************************************************************************/	157	/*****************************************************************************/
120		158
121	ev_tstamp	159	inline ev_tstamp
122	ev_time (void)	160	ev_time (void)
123	{	161	{
124	#if EV_USE_REALTIME	162	#if EV_USE_REALTIME
125	struct timespec ts;	163	struct timespec ts;
126	clock_gettime (CLOCK_REALTIME, &ts);	164	clock_gettime (CLOCK_REALTIME, &ts);
…		…
130	gettimeofday (&tv, 0);	168	gettimeofday (&tv, 0);
131	return tv.tv_sec + tv.tv_usec * 1e-6;	169	return tv.tv_sec + tv.tv_usec * 1e-6;
132	#endif	170	#endif
133	}	171	}
134		172
135	static ev_tstamp	173	inline ev_tstamp
136	get_clock (void)	174	get_clock (void)
137	{	175	{
138	#if EV_USE_MONOTONIC	176	#if EV_USE_MONOTONIC
139	if (expect_true (have_monotonic))	177	if (expect_true (have_monotonic))
140	{	178	{
…		…
143	return ts.tv_sec + ts.tv_nsec * 1e-9;	181	return ts.tv_sec + ts.tv_nsec * 1e-9;
144	}	182	}
145	#endif	183	#endif
146		184
147	return ev_time ();	185	return ev_time ();
		186	}
		187
		188	ev_tstamp
		189	ev_now (EV_P)
		190	{
		191	return rt_now;
148	}	192	}
149		193
150	#define array_roundsize(base,n) ((n) \| 4 & ~3)	194	#define array_roundsize(base,n) ((n) \| 4 & ~3)
151		195
152	#define array_needsize(base,cur,cnt,init) \	196	#define array_needsize(base,cur,cnt,init) \
…		…
166		210
167	/*****************************************************************************/	211	/*****************************************************************************/
168		212
169	typedef struct	213	typedef struct
170	{	214	{
171	struct ev_io *head;	215	struct ev_watcher_list *head;
172	unsigned char events;	216	unsigned char events;
173	unsigned char reify;	217	unsigned char reify;
174	} ANFD;	218	} ANFD;
175		219
176	static ANFD *anfds;	220	static ANFD *anfds;
…		…
193	{	237	{
194	W w;	238	W w;
195	int events;	239	int events;
196	} ANPENDING;	240	} ANPENDING;
197		241
198	static ANPENDING *pendings;	242	static ANPENDING *pendings [NUMPRI];
199	static int pendingmax, pendingcnt;	243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
200		244
201	static void	245	static void
202	event (W w, int events)	246	event (EV_P_ W w, int events)
203	{	247	{
204	if (w->pending)	248	if (w->pending)
205	{	249	{
206	pendings [w->pending - 1].events \|= events;	250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
207	return;	251	return;
208	}	252	}
209		253
210	w->pending = ++pendingcnt;	254	w->pending = ++pendingcnt [ABSPRI (w)];
211	array_needsize (pendings, pendingmax, pendingcnt, );	255	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
212	pendings [pendingcnt - 1].w = w;	256	pendings [ABSPRI (w)][w->pending - 1].w = w;
213	pendings [pendingcnt - 1].events = events;	257	pendings [ABSPRI (w)][w->pending - 1].events = events;
214	}	258	}
215		259
216	static void	260	static void
217	queue_events (W *events, int eventcnt, int type)	261	queue_events (EV_P_ W *events, int eventcnt, int type)
218	{	262	{
219	int i;	263	int i;
220		264
221	for (i = 0; i < eventcnt; ++i)	265	for (i = 0; i < eventcnt; ++i)
222	event (events [i], type);	266	event (EV_A_ events [i], type);
223	}	267	}
224		268
225	static void	269	static void
226	fd_event (int fd, int events)	270	fd_event (EV_P_ int fd, int events)
227	{	271	{
228	ANFD *anfd = anfds + fd;	272	ANFD *anfd = anfds + fd;
229	struct ev_io *w;	273	struct ev_io *w;
230		274
231	for (w = anfd->head; w; w = w->next)	275	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
232	{	276	{
233	int ev = w->events & events;	277	int ev = w->events & events;
234		278
235	if (ev)	279	if (ev)
236	event ((W)w, ev);	280	event (EV_A_ (W)w, ev);
237	}	281	}
238	}	282	}
239		283
240	/*****************************************************************************/	284	/*****************************************************************************/
241		285
242	static int *fdchanges;	286	static int *fdchanges;
243	static int fdchangemax, fdchangecnt;	287	static int fdchangemax, fdchangecnt;
244		288
245	static void	289	static void
246	fd_reify (void)	290	fd_reify (EV_P)
247	{	291	{
248	int i;	292	int i;
249		293
250	for (i = 0; i < fdchangecnt; ++i)	294	for (i = 0; i < fdchangecnt; ++i)
251	{	295	{
…		…
253	ANFD *anfd = anfds + fd;	297	ANFD *anfd = anfds + fd;
254	struct ev_io *w;	298	struct ev_io *w;
255		299
256	int events = 0;	300	int events = 0;
257		301
258	for (w = anfd->head; w; w = w->next)	302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
259	events \|= w->events;	303	events \|= w->events;
260		304
261	anfd->reify = 0;	305	anfd->reify = 0;
262		306
263	if (anfd->events != events)	307	if (anfd->events != events)
264	{	308	{
265	method_modify (fd, anfd->events, events);	309	method_modify (EV_A_ fd, anfd->events, events);
266	anfd->events = events;	310	anfd->events = events;
267	}	311	}
268	}	312	}
269		313
270	fdchangecnt = 0;	314	fdchangecnt = 0;
271	}	315	}
272		316
273	static void	317	static void
274	fd_change (int fd)	318	fd_change (EV_P_ int fd)
275	{	319	{
276	if (anfds [fd].reify \|\| fdchangecnt < 0)	320	if (anfds [fd].reify \|\| fdchangecnt < 0)
277	return;	321	return;
278		322
279	anfds [fd].reify = 1;	323	anfds [fd].reify = 1;
…		…
282	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
283	fdchanges [fdchangecnt - 1] = fd;	327	fdchanges [fdchangecnt - 1] = fd;
284	}	328	}
285		329
286	static void	330	static void
287	fd_kill (int fd)	331	fd_kill (EV_P_ int fd)
288	{	332	{
289	struct ev_io *w;	333	struct ev_io *w;
290		334
291	printf ("killing fd %d\n", fd);//D
292	while ((w = anfds [fd].head))	335	while ((w = (struct ev_io *)anfds [fd].head))
293	{	336	{
294	ev_io_stop (w);	337	ev_io_stop (EV_A_ w);
295	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
296	}	339	}
297	}	340	}
298		341
299	/* called on EBADF to verify fds */	342	/* called on EBADF to verify fds */
300	static void	343	static void
301	fd_ebadf (void)	344	fd_ebadf (EV_P)
302	{	345	{
303	int fd;	346	int fd;
304		347
305	for (fd = 0; fd < anfdmax; ++fd)	348	for (fd = 0; fd < anfdmax; ++fd)
306	if (anfds [fd].events)	349	if (anfds [fd].events)
307	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
308	fd_kill (fd);	351	fd_kill (EV_A_ fd);
309	}	352	}
310		353
311	/* called on ENOMEM in select/poll to kill some fds and retry */	354	/* called on ENOMEM in select/poll to kill some fds and retry */
312	static void	355	static void
313	fd_enomem (void)	356	fd_enomem (EV_P)
314	{	357	{
315	int fd = anfdmax;	358	int fd = anfdmax;
316		359
317	while (fd--)	360	while (fd--)
318	if (anfds [fd].events)	361	if (anfds [fd].events)
319	{	362	{
320	close (fd);	363	close (fd);
321	fd_kill (fd);	364	fd_kill (EV_A_ fd);
322	return;	365	return;
323	}	366	}
324	}	367	}
325		368
326	/*****************************************************************************/	369	/*****************************************************************************/
…		…
374		417
375	/*****************************************************************************/	418	/*****************************************************************************/
376		419
377	typedef struct	420	typedef struct
378	{	421	{
379	struct ev_signal *head;	422	struct ev_watcher_list *head;
380	sig_atomic_t volatile gotsig;	423	sig_atomic_t volatile gotsig;
381	} ANSIG;	424	} ANSIG;
382		425
383	static ANSIG *signals;	426	static ANSIG *signals;
384	static int signalmax;	427	static int signalmax;
…		…
404	{	447	{
405	signals [signum - 1].gotsig = 1;	448	signals [signum - 1].gotsig = 1;
406		449
407	if (!gotsig)	450	if (!gotsig)
408	{	451	{
		452	int old_errno = errno;
409	gotsig = 1;	453	gotsig = 1;
410	write (sigpipe [1], &signum, 1);	454	write (sigpipe [1], &signum, 1);
		455	errno = old_errno;
411	}	456	}
412	}	457	}
413		458
414	static void	459	static void
415	sigcb (struct ev_io *iow, int revents)	460	sigcb (EV_P_ struct ev_io *iow, int revents)
416	{	461	{
417	struct ev_signal *w;	462	struct ev_watcher_list *w;
418	int signum;	463	int signum;
419		464
420	read (sigpipe [0], &revents, 1);	465	read (sigpipe [0], &revents, 1);
421	gotsig = 0;	466	gotsig = 0;
422		467
…		…
424	if (signals [signum].gotsig)	469	if (signals [signum].gotsig)
425	{	470	{
426	signals [signum].gotsig = 0;	471	signals [signum].gotsig = 0;
427		472
428	for (w = signals [signum].head; w; w = w->next)	473	for (w = signals [signum].head; w; w = w->next)
429	event ((W)w, EV_SIGNAL);	474	event (EV_A_ (W)w, EV_SIGNAL);
430	}	475	}
431	}	476	}
432		477
433	static void	478	static void
434	siginit (void)	479	siginit (EV_P)
435	{	480	{
		481	#ifndef WIN32
436	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	482	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
437	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	483	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
438		484
439	/* rather than sort out wether we really need nb, set it */	485	/* rather than sort out wether we really need nb, set it */
440	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
441	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		488	#endif
442		489
443	ev_io_set (&sigev, sigpipe [0], EV_READ);	490	ev_io_set (&sigev, sigpipe [0], EV_READ);
444	ev_io_start (&sigev);	491	ev_io_start (&sigev);
		492	ev_unref (EV_A); /* child watcher should not keep loop alive */
445	}	493	}
446		494
447	/*****************************************************************************/	495	/*****************************************************************************/
448		496
449	static struct ev_idle **idles;	497	static struct ev_idle **idles;
…		…
458	/*****************************************************************************/	506	/*****************************************************************************/
459		507
460	static struct ev_child *childs [PID_HASHSIZE];	508	static struct ev_child *childs [PID_HASHSIZE];
461	static struct ev_signal childev;	509	static struct ev_signal childev;
462		510
		511	#ifndef WIN32
		512
463	#ifndef WCONTINUED	513	#ifndef WCONTINUED
464	# define WCONTINUED 0	514	# define WCONTINUED 0
465	#endif	515	#endif
466		516
467	static void	517	static void
468	childcb (struct ev_signal *sw, int revents)	518	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
469	{	519	{
470	struct ev_child *w;	520	struct ev_child *w;
		521
		522	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		523	if (w->pid == pid \|\| !w->pid)
		524	{
		525	w->priority = sw->priority; /* need to do it now */
		526	w->rpid = pid;
		527	w->rstatus = status;
		528	event (EV_A_ (W)w, EV_CHILD);
		529	}
		530	}
		531
		532	static void
		533	childcb (EV_P_ struct ev_signal *sw, int revents)
		534	{
471	int pid, status;	535	int pid, status;
472		536
473	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	537	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
474	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	538	{
475	if (w->pid == pid \|\| !w->pid)	539	/* make sure we are called again until all childs have been reaped */
476	{	540	event (EV_A_ (W)sw, EV_SIGNAL);
477	w->status = status;	541
478	event ((W)w, EV_CHILD);	542	child_reap (EV_A_ sw, pid, pid, status);
479	}	543	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		544	}
480	}	545	}
		546
		547	#endif
481		548
482	/*****************************************************************************/	549	/*****************************************************************************/
483		550
		551	#if EV_USE_KQUEUE
		552	# include "ev_kqueue.c"
		553	#endif
484	#if EV_USE_EPOLL	554	#if EV_USE_EPOLL
485	# include "ev_epoll.c"	555	# include "ev_epoll.c"
486	#endif	556	#endif
487	#if EV_USE_POLL	557	#if EV_USEV_POLL
488	# include "ev_poll.c"	558	# include "ev_poll.c"
489	#endif	559	#endif
490	#if EV_USE_SELECT	560	#if EV_USE_SELECT
491	# include "ev_select.c"	561	# include "ev_select.c"
492	#endif	562	#endif
…		…
501	ev_version_minor (void)	571	ev_version_minor (void)
502	{	572	{
503	return EV_VERSION_MINOR;	573	return EV_VERSION_MINOR;
504	}	574	}
505		575
506	/* return true if we are running with elevated privileges and ignore env variables */	576	/* return true if we are running with elevated privileges and should ignore env variables */
507	static int	577	static int
508	enable_secure ()	578	enable_secure (void)
509	{	579	{
		580	#ifdef WIN32
		581	return 0;
		582	#else
510	return getuid () != geteuid ()	583	return getuid () != geteuid ()
511	\|\| getgid () != getegid ();	584	\|\| getgid () != getegid ();
		585	#endif
512	}	586	}
513		587
		588	int
		589	ev_method (EV_P)
		590	{
		591	return method;
		592	}
		593
		594	int
514	int ev_init (int methods)	595	ev_init (EV_P_ int methods)
515	{	596	{
516	if (!ev_method)	597	if (!method)
517	{	598	{
518	#if EV_USE_MONOTONIC	599	#if EV_USE_MONOTONIC
519	{	600	{
520	struct timespec ts;	601	struct timespec ts;
521	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	602	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
522	have_monotonic = 1;	603	have_monotonic = 1;
523	}	604	}
524	#endif	605	#endif
525		606
526	ev_now = ev_time ();	607	rt_now = ev_time ();
527	now = get_clock ();	608	mn_now = get_clock ();
528	now_floor = now;	609	now_floor = mn_now;
529	diff = ev_now - now;	610	diff = rt_now - mn_now;
530		611
531	if (pipe (sigpipe))	612	if (pipe (sigpipe))
532	return 0;	613	return 0;
533		614
534	if (methods == EVMETHOD_AUTO)	615	if (methods == EVMETHOD_AUTO)
535	if (!enable_secure () && getenv ("LIBEV_METHODS"))	616	if (!enable_secure () && getenv ("LIBmethodS"))
536	methods = atoi (getenv ("LIBEV_METHODS"));	617	methods = atoi (getenv ("LIBmethodS"));
537	else	618	else
538	methods = EVMETHOD_ANY;	619	methods = EVMETHOD_ANY;
539		620
540	ev_method = 0;	621	method = 0;
		622	#if EV_USE_KQUEUE
		623	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		624	#endif
541	#if EV_USE_EPOLL	625	#if EV_USE_EPOLL
542	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	626	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
543	#endif	627	#endif
544	#if EV_USE_POLL	628	#if EV_USEV_POLL
545	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	629	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
546	#endif	630	#endif
547	#if EV_USE_SELECT	631	#if EV_USE_SELECT
548	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	632	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
549	#endif	633	#endif
550		634
551	if (ev_method)	635	if (method)
552	{	636	{
553	ev_watcher_init (&sigev, sigcb);	637	ev_watcher_init (&sigev, sigcb);
		638	ev_set_priority (&sigev, EV_MAXPRI);
554	siginit ();	639	siginit (EV_A);
555		640
		641	#ifndef WIN32
556	ev_signal_init (&childev, childcb, SIGCHLD);	642	ev_signal_init (&childev, childcb, SIGCHLD);
		643	ev_set_priority (&childev, EV_MAXPRI);
557	ev_signal_start (&childev);	644	ev_signal_start (EV_A_ &childev);
		645	ev_unref (EV_A); /* child watcher should not keep loop alive */
		646	#endif
558	}	647	}
559	}	648	}
560		649
561	return ev_method;	650	return method;
562	}	651	}
563		652
564	/*****************************************************************************/	653	/*****************************************************************************/
565		654
566	void	655	void
…		…
577		666
578	void	667	void
579	ev_fork_child (void)	668	ev_fork_child (void)
580	{	669	{
581	#if EV_USE_EPOLL	670	#if EV_USE_EPOLL
582	if (ev_method == EVMETHOD_EPOLL)	671	if (method == EVMETHOD_EPOLL)
583	epoll_postfork_child ();	672	epoll_postfork_child ();
584	#endif	673	#endif
585		674
586	ev_io_stop (&sigev);	675	ev_io_stop (&sigev);
587	close (sigpipe [0]);	676	close (sigpipe [0]);
…		…
591	}	680	}
592		681
593	/*****************************************************************************/	682	/*****************************************************************************/
594		683
595	static void	684	static void
596	call_pending (void)	685	call_pending (EV_P)
597	{	686	{
		687	int pri;
		688
		689	for (pri = NUMPRI; pri--; )
598	while (pendingcnt)	690	while (pendingcnt [pri])
599	{	691	{
600	ANPENDING *p = pendings + --pendingcnt;	692	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
601		693
602	if (p->w)	694	if (p->w)
603	{	695	{
604	p->w->pending = 0;	696	p->w->pending = 0;
605	p->w->cb (p->w, p->events);	697	p->w->cb (EV_A_ p->w, p->events);
606	}	698	}
607	}	699	}
608	}	700	}
609		701
610	static void	702	static void
611	timers_reify (void)	703	timers_reify (EV_P)
612	{	704	{
613	while (timercnt && timers [0]->at <= now)	705	while (timercnt && timers [0]->at <= mn_now)
614	{	706	{
615	struct ev_timer *w = timers [0];	707	struct ev_timer *w = timers [0];
616		708
617	/* first reschedule or stop timer */	709	/* first reschedule or stop timer */
618	if (w->repeat)	710	if (w->repeat)
619	{	711	{
620	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	712	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
621	w->at = now + w->repeat;	713	w->at = mn_now + w->repeat;
622	downheap ((WT *)timers, timercnt, 0);	714	downheap ((WT *)timers, timercnt, 0);
623	}	715	}
624	else	716	else
625	ev_timer_stop (w); /* nonrepeating: stop timer */	717	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
626		718
627	event ((W)w, EV_TIMEOUT);	719	event ((W)w, EV_TIMEOUT);
628	}	720	}
629	}	721	}
630		722
631	static void	723	static void
632	periodics_reify (void)	724	periodics_reify (EV_P)
633	{	725	{
634	while (periodiccnt && periodics [0]->at <= ev_now)	726	while (periodiccnt && periodics [0]->at <= rt_now)
635	{	727	{
636	struct ev_periodic *w = periodics [0];	728	struct ev_periodic *w = periodics [0];
637		729
638	/* first reschedule or stop timer */	730	/* first reschedule or stop timer */
639	if (w->interval)	731	if (w->interval)
640	{	732	{
641	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	733	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;
642	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	734	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
643	downheap ((WT *)periodics, periodiccnt, 0);	735	downheap ((WT *)periodics, periodiccnt, 0);
644	}	736	}
645	else	737	else
646	ev_periodic_stop (w); /* nonrepeating: stop timer */	738	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
647		739
648	event ((W)w, EV_PERIODIC);	740	event (EV_A_ (W)w, EV_PERIODIC);
649	}	741	}
650	}	742	}
651		743
652	static void	744	static void
653	periodics_reschedule (ev_tstamp diff)	745	periodics_reschedule (EV_P_ ev_tstamp diff)
654	{	746	{
655	int i;	747	int i;
656		748
657	/* adjust periodics after time jump */	749	/* adjust periodics after time jump */
658	for (i = 0; i < periodiccnt; ++i)	750	for (i = 0; i < periodiccnt; ++i)
659	{	751	{
660	struct ev_periodic *w = periodics [i];	752	struct ev_periodic *w = periodics [i];
661		753
662	if (w->interval)	754	if (w->interval)
663	{	755	{
664	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	756	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
665		757
666	if (fabs (diff) >= 1e-4)	758	if (fabs (diff) >= 1e-4)
667	{	759	{
668	ev_periodic_stop (w);	760	ev_periodic_stop (EV_A_ w);
669	ev_periodic_start (w);	761	ev_periodic_start (EV_A_ w);
670		762
671	i = 0; /* restart loop, inefficient, but time jumps should be rare */	763	i = 0; /* restart loop, inefficient, but time jumps should be rare */
672	}	764	}
673	}	765	}
674	}	766	}
675	}	767	}
676		768
677	static int	769	inline int
678	time_update_monotonic (void)	770	time_update_monotonic (EV_P)
679	{	771	{
680	now = get_clock ();	772	mn_now = get_clock ();
681		773
682	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	774	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
683	{	775	{
684	ev_now = now + diff;	776	rt_now = mn_now + diff;
685	return 0;	777	return 0;
686	}	778	}
687	else	779	else
688	{	780	{
689	now_floor = now;	781	now_floor = mn_now;
690	ev_now = ev_time ();	782	rt_now = ev_time ();
691	return 1;	783	return 1;
692	}	784	}
693	}	785	}
694		786
695	static void	787	static void
696	time_update (void)	788	time_update (EV_P)
697	{	789	{
698	int i;	790	int i;
699		791
700	#if EV_USE_MONOTONIC	792	#if EV_USE_MONOTONIC
701	if (expect_true (have_monotonic))	793	if (expect_true (have_monotonic))
702	{	794	{
703	if (time_update_monotonic ())	795	if (time_update_monotonic (EV_A))
704	{	796	{
705	ev_tstamp odiff = diff;	797	ev_tstamp odiff = diff;
706		798
707	for (i = 4; --i; ) /* loop a few times, before making important decisions */	799	for (i = 4; --i; ) /* loop a few times, before making important decisions */
708	{	800	{
709	diff = ev_now - now;	801	diff = rt_now - mn_now;
710		802
711	if (fabs (odiff - diff) < MIN_TIMEJUMP)	803	if (fabs (odiff - diff) < MIN_TIMEJUMP)
712	return; /* all is well */	804	return; /* all is well */
713		805
714	ev_now = ev_time ();	806	rt_now = ev_time ();
715	now = get_clock ();	807	mn_now = get_clock ();
716	now_floor = now;	808	now_floor = mn_now;
717	}	809	}
718		810
719	periodics_reschedule (diff - odiff);	811	periodics_reschedule (EV_A_ diff - odiff);
720	/* no timer adjustment, as the monotonic clock doesn't jump */	812	/* no timer adjustment, as the monotonic clock doesn't jump */
721	}	813	}
722	}	814	}
723	else	815	else
724	#endif	816	#endif
725	{	817	{
726	ev_now = ev_time ();	818	rt_now = ev_time ();
727		819
728	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	820	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
729	{	821	{
730	periodics_reschedule (ev_now - now);	822	periodics_reschedule (EV_A_ rt_now - mn_now);
731		823
732	/* adjust timers. this is easy, as the offset is the same for all */	824	/* adjust timers. this is easy, as the offset is the same for all */
733	for (i = 0; i < timercnt; ++i)	825	for (i = 0; i < timercnt; ++i)
734	timers [i]->at += diff;	826	timers [i]->at += diff;
735	}	827	}
736		828
737	now = ev_now;	829	mn_now = rt_now;
738	}	830	}
739	}	831	}
740		832
741	int ev_loop_done;	833	void
		834	ev_ref (EV_P)
		835	{
		836	++activecnt;
		837	}
742		838
		839	void
		840	ev_unref (EV_P)
		841	{
		842	--activecnt;
		843	}
		844
		845	static int loop_done;
		846
		847	void
743	void ev_loop (int flags)	848	ev_loop (EV_P_ int flags)
744	{	849	{
745	double block;	850	double block;
746	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	851	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
747		852
748	do	853	do
749	{	854	{
750	/* queue check watchers (and execute them) */	855	/* queue check watchers (and execute them) */
751	if (expect_false (preparecnt))	856	if (expect_false (preparecnt))
752	{	857	{
753	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	858	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
754	call_pending ();	859	call_pending (EV_A);
755	}	860	}
756		861
757	/* update fd-related kernel structures */	862	/* update fd-related kernel structures */
758	fd_reify ();	863	fd_reify (EV_A);
759		864
760	/* calculate blocking time */	865	/* calculate blocking time */
761		866
762	/* we only need this for !monotonic clockor timers, but as we basically	867	/* we only need this for !monotonic clockor timers, but as we basically
763	always have timers, we just calculate it always */	868	always have timers, we just calculate it always */
764	#if EV_USE_MONOTONIC	869	#if EV_USE_MONOTONIC
765	if (expect_true (have_monotonic))	870	if (expect_true (have_monotonic))
766	time_update_monotonic ();	871	time_update_monotonic (EV_A);
767	else	872	else
768	#endif	873	#endif
769	{	874	{
770	ev_now = ev_time ();	875	rt_now = ev_time ();
771	now = ev_now;	876	mn_now = rt_now;
772	}	877	}
773		878
774	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	879	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
775	block = 0.;	880	block = 0.;
776	else	881	else
777	{	882	{
778	block = MAX_BLOCKTIME;	883	block = MAX_BLOCKTIME;
779		884
780	if (timercnt)	885	if (timercnt)
781	{	886	{
782	ev_tstamp to = timers [0]->at - now + method_fudge;	887	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
783	if (block > to) block = to;	888	if (block > to) block = to;
784	}	889	}
785		890
786	if (periodiccnt)	891	if (periodiccnt)
787	{	892	{
788	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	893	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
789	if (block > to) block = to;	894	if (block > to) block = to;
790	}	895	}
791		896
792	if (block < 0.) block = 0.;	897	if (block < 0.) block = 0.;
793	}	898	}
794		899
795	method_poll (block);	900	method_poll (EV_A_ block);
796		901
797	/* update ev_now, do magic */	902	/* update rt_now, do magic */
798	time_update ();	903	time_update (EV_A);
799		904
800	/* queue pending timers and reschedule them */	905	/* queue pending timers and reschedule them */
801	timers_reify (); /* relative timers called last */	906	timers_reify (EV_A); /* relative timers called last */
802	periodics_reify (); /* absolute timers called first */	907	periodics_reify (EV_A); /* absolute timers called first */
803		908
804	/* queue idle watchers unless io or timers are pending */	909	/* queue idle watchers unless io or timers are pending */
805	if (!pendingcnt)	910	if (!pendingcnt)
806	queue_events ((W *)idles, idlecnt, EV_IDLE);	911	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
807		912
808	/* queue check watchers, to be executed first */	913	/* queue check watchers, to be executed first */
809	if (checkcnt)	914	if (checkcnt)
810	queue_events ((W *)checks, checkcnt, EV_CHECK);	915	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
811		916
812	call_pending ();	917	call_pending (EV_A);
813	}	918	}
814	while (!ev_loop_done);	919	while (activecnt && !loop_done);
815		920
816	if (ev_loop_done != 2)	921	if (loop_done != 2)
817	ev_loop_done = 0;	922	loop_done = 0;
		923	}
		924
		925	void
		926	ev_unloop (EV_P_ int how)
		927	{
		928	loop_done = how;
818	}	929	}
819		930
820	/*****************************************************************************/	931	/*****************************************************************************/
821		932
822	static void	933	inline void
823	wlist_add (WL *head, WL elem)	934	wlist_add (WL *head, WL elem)
824	{	935	{
825	elem->next = *head;	936	elem->next = *head;
826	*head = elem;	937	*head = elem;
827	}	938	}
828		939
829	static void	940	inline void
830	wlist_del (WL *head, WL elem)	941	wlist_del (WL *head, WL elem)
831	{	942	{
832	while (*head)	943	while (*head)
833	{	944	{
834	if (*head == elem)	945	if (*head == elem)
…		…
839		950
840	head = &(*head)->next;	951	head = &(*head)->next;
841	}	952	}
842	}	953	}
843		954
844	static void	955	inline void
845	ev_clear_pending (W w)	956	ev_clear_pending (EV_P_ W w)
846	{	957	{
847	if (w->pending)	958	if (w->pending)
848	{	959	{
849	pendings [w->pending - 1].w = 0;	960	pendings [ABSPRI (w)][w->pending - 1].w = 0;
850	w->pending = 0;	961	w->pending = 0;
851	}	962	}
852	}	963	}
853		964
854	static void	965	inline void
855	ev_start (W w, int active)	966	ev_start (EV_P_ W w, int active)
856	{	967	{
		968	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		969	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		970
857	w->active = active;	971	w->active = active;
		972	ev_ref (EV_A);
858	}	973	}
859		974
860	static void	975	inline void
861	ev_stop (W w)	976	ev_stop (EV_P_ W w)
862	{	977	{
		978	ev_unref (EV_A);
863	w->active = 0;	979	w->active = 0;
864	}	980	}
865		981
866	/*****************************************************************************/	982	/*****************************************************************************/
867		983
868	void	984	void
869	ev_io_start (struct ev_io *w)	985	ev_io_start (EV_P_ struct ev_io *w)
870	{	986	{
871	int fd = w->fd;	987	int fd = w->fd;
872		988
873	if (ev_is_active (w))	989	if (ev_is_active (w))
874	return;	990	return;
875		991
876	assert (("ev_io_start called with negative fd", fd >= 0));	992	assert (("ev_io_start called with negative fd", fd >= 0));
877		993
878	ev_start ((W)w, 1);	994	ev_start (EV_A_ (W)w, 1);
879	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	995	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
880	wlist_add ((WL *)&anfds[fd].head, (WL)w);	996	wlist_add ((WL *)&anfds[fd].head, (WL)w);
881		997
882	fd_change (fd);	998	fd_change (EV_A_ fd);
883	}	999	}
884		1000
885	void	1001	void
886	ev_io_stop (struct ev_io *w)	1002	ev_io_stop (EV_P_ struct ev_io *w)
887	{	1003	{
888	ev_clear_pending ((W)w);	1004	ev_clear_pending (EV_A_ (W)w);
889	if (!ev_is_active (w))	1005	if (!ev_is_active (w))
890	return;	1006	return;
891		1007
892	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1008	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
893	ev_stop ((W)w);	1009	ev_stop (EV_A_ (W)w);
894		1010
895	fd_change (w->fd);	1011	fd_change (EV_A_ w->fd);
896	}	1012	}
897		1013
898	void	1014	void
899	ev_timer_start (struct ev_timer *w)	1015	ev_timer_start (EV_P_ struct ev_timer *w)
900	{	1016	{
901	if (ev_is_active (w))	1017	if (ev_is_active (w))
902	return;	1018	return;
903		1019
904	w->at += now;	1020	w->at += mn_now;
905		1021
906	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1022	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
907		1023
908	ev_start ((W)w, ++timercnt);	1024	ev_start (EV_A_ (W)w, ++timercnt);
909	array_needsize (timers, timermax, timercnt, );	1025	array_needsize (timers, timermax, timercnt, );
910	timers [timercnt - 1] = w;	1026	timers [timercnt - 1] = w;
911	upheap ((WT *)timers, timercnt - 1);	1027	upheap ((WT *)timers, timercnt - 1);
912	}	1028	}
913		1029
914	void	1030	void
915	ev_timer_stop (struct ev_timer *w)	1031	ev_timer_stop (EV_P_ struct ev_timer *w)
916	{	1032	{
917	ev_clear_pending ((W)w);	1033	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1034	if (!ev_is_active (w))
919	return;	1035	return;
920		1036
921	if (w->active < timercnt--)	1037	if (w->active < timercnt--)
922	{	1038	{
…		…
924	downheap ((WT *)timers, timercnt, w->active - 1);	1040	downheap ((WT *)timers, timercnt, w->active - 1);
925	}	1041	}
926		1042
927	w->at = w->repeat;	1043	w->at = w->repeat;
928		1044
929	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
930	}	1046	}
931		1047
932	void	1048	void
933	ev_timer_again (struct ev_timer *w)	1049	ev_timer_again (EV_P_ struct ev_timer *w)
934	{	1050	{
935	if (ev_is_active (w))	1051	if (ev_is_active (w))
936	{	1052	{
937	if (w->repeat)	1053	if (w->repeat)
938	{	1054	{
939	w->at = now + w->repeat;	1055	w->at = mn_now + w->repeat;
940	downheap ((WT *)timers, timercnt, w->active - 1);	1056	downheap ((WT *)timers, timercnt, w->active - 1);
941	}	1057	}
942	else	1058	else
943	ev_timer_stop (w);	1059	ev_timer_stop (EV_A_ w);
944	}	1060	}
945	else if (w->repeat)	1061	else if (w->repeat)
946	ev_timer_start (w);	1062	ev_timer_start (EV_A_ w);
947	}	1063	}
948		1064
949	void	1065	void
950	ev_periodic_start (struct ev_periodic *w)	1066	ev_periodic_start (EV_P_ struct ev_periodic *w)
951	{	1067	{
952	if (ev_is_active (w))	1068	if (ev_is_active (w))
953	return;	1069	return;
954		1070
955	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1071	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
956		1072
957	/* this formula differs from the one in periodic_reify because we do not always round up */	1073	/* this formula differs from the one in periodic_reify because we do not always round up */
958	if (w->interval)	1074	if (w->interval)
959	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1075	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
960		1076
961	ev_start ((W)w, ++periodiccnt);	1077	ev_start (EV_A_ (W)w, ++periodiccnt);
962	array_needsize (periodics, periodicmax, periodiccnt, );	1078	array_needsize (periodics, periodicmax, periodiccnt, );
963	periodics [periodiccnt - 1] = w;	1079	periodics [periodiccnt - 1] = w;
964	upheap ((WT *)periodics, periodiccnt - 1);	1080	upheap ((WT *)periodics, periodiccnt - 1);
965	}	1081	}
966		1082
967	void	1083	void
968	ev_periodic_stop (struct ev_periodic *w)	1084	ev_periodic_stop (EV_P_ struct ev_periodic *w)
969	{	1085	{
970	ev_clear_pending ((W)w);	1086	ev_clear_pending (EV_A_ (W)w);
971	if (!ev_is_active (w))	1087	if (!ev_is_active (w))
972	return;	1088	return;
973		1089
974	if (w->active < periodiccnt--)	1090	if (w->active < periodiccnt--)
975	{	1091	{
976	periodics [w->active - 1] = periodics [periodiccnt];	1092	periodics [w->active - 1] = periodics [periodiccnt];
977	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1093	downheap ((WT *)periodics, periodiccnt, w->active - 1);
978	}	1094	}
979		1095
980	ev_stop ((W)w);	1096	ev_stop (EV_A_ (W)w);
981	}	1097	}
982		1098
		1099	#ifndef SA_RESTART
		1100	# define SA_RESTART 0
		1101	#endif
		1102
983	void	1103	void
984	ev_signal_start (struct ev_signal *w)	1104	ev_signal_start (EV_P_ struct ev_signal *w)
985	{	1105	{
986	if (ev_is_active (w))	1106	if (ev_is_active (w))
987	return;	1107	return;
988		1108
989	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1109	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
990		1110
991	ev_start ((W)w, 1);	1111	ev_start (EV_A_ (W)w, 1);
992	array_needsize (signals, signalmax, w->signum, signals_init);	1112	array_needsize (signals, signalmax, w->signum, signals_init);
993	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1113	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
994		1114
995	if (!w->next)	1115	if (!w->next)
996	{	1116	{
997	struct sigaction sa;	1117	struct sigaction sa;
998	sa.sa_handler = sighandler;	1118	sa.sa_handler = sighandler;
999	sigfillset (&sa.sa_mask);	1119	sigfillset (&sa.sa_mask);
1000	sa.sa_flags = 0;	1120	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1001	sigaction (w->signum, &sa, 0);	1121	sigaction (w->signum, &sa, 0);
1002	}	1122	}
1003	}	1123	}
1004		1124
1005	void	1125	void
1006	ev_signal_stop (struct ev_signal *w)	1126	ev_signal_stop (EV_P_ struct ev_signal *w)
1007	{	1127	{
1008	ev_clear_pending ((W)w);	1128	ev_clear_pending (EV_A_ (W)w);
1009	if (!ev_is_active (w))	1129	if (!ev_is_active (w))
1010	return;	1130	return;
1011		1131
1012	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1132	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1013	ev_stop ((W)w);	1133	ev_stop (EV_A_ (W)w);
1014		1134
1015	if (!signals [w->signum - 1].head)	1135	if (!signals [w->signum - 1].head)
1016	signal (w->signum, SIG_DFL);	1136	signal (w->signum, SIG_DFL);
1017	}	1137	}
1018		1138
1019	void	1139	void
1020	ev_idle_start (struct ev_idle *w)	1140	ev_idle_start (EV_P_ struct ev_idle *w)
1021	{	1141	{
1022	if (ev_is_active (w))	1142	if (ev_is_active (w))
1023	return;	1143	return;
1024		1144
1025	ev_start ((W)w, ++idlecnt);	1145	ev_start (EV_A_ (W)w, ++idlecnt);
1026	array_needsize (idles, idlemax, idlecnt, );	1146	array_needsize (idles, idlemax, idlecnt, );
1027	idles [idlecnt - 1] = w;	1147	idles [idlecnt - 1] = w;
1028	}	1148	}
1029		1149
1030	void	1150	void
1031	ev_idle_stop (struct ev_idle *w)	1151	ev_idle_stop (EV_P_ struct ev_idle *w)
1032	{	1152	{
1033	ev_clear_pending ((W)w);	1153	ev_clear_pending (EV_A_ (W)w);
1034	if (ev_is_active (w))	1154	if (ev_is_active (w))
1035	return;	1155	return;
1036		1156
1037	idles [w->active - 1] = idles [--idlecnt];	1157	idles [w->active - 1] = idles [--idlecnt];
1038	ev_stop ((W)w);	1158	ev_stop (EV_A_ (W)w);
1039	}	1159	}
1040		1160
1041	void	1161	void
1042	ev_prepare_start (struct ev_prepare *w)	1162	ev_prepare_start (EV_P_ struct ev_prepare *w)
1043	{	1163	{
1044	if (ev_is_active (w))	1164	if (ev_is_active (w))
1045	return;	1165	return;
1046		1166
1047	ev_start ((W)w, ++preparecnt);	1167	ev_start (EV_A_ (W)w, ++preparecnt);
1048	array_needsize (prepares, preparemax, preparecnt, );	1168	array_needsize (prepares, preparemax, preparecnt, );
1049	prepares [preparecnt - 1] = w;	1169	prepares [preparecnt - 1] = w;
1050	}	1170	}
1051		1171
1052	void	1172	void
1053	ev_prepare_stop (struct ev_prepare *w)	1173	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1054	{	1174	{
1055	ev_clear_pending ((W)w);	1175	ev_clear_pending (EV_A_ (W)w);
1056	if (ev_is_active (w))	1176	if (ev_is_active (w))
1057	return;	1177	return;
1058		1178
1059	prepares [w->active - 1] = prepares [--preparecnt];	1179	prepares [w->active - 1] = prepares [--preparecnt];
1060	ev_stop ((W)w);	1180	ev_stop (EV_A_ (W)w);
1061	}	1181	}
1062		1182
1063	void	1183	void
1064	ev_check_start (struct ev_check *w)	1184	ev_check_start (EV_P_ struct ev_check *w)
1065	{	1185	{
1066	if (ev_is_active (w))	1186	if (ev_is_active (w))
1067	return;	1187	return;
1068		1188
1069	ev_start ((W)w, ++checkcnt);	1189	ev_start (EV_A_ (W)w, ++checkcnt);
1070	array_needsize (checks, checkmax, checkcnt, );	1190	array_needsize (checks, checkmax, checkcnt, );
1071	checks [checkcnt - 1] = w;	1191	checks [checkcnt - 1] = w;
1072	}	1192	}
1073		1193
1074	void	1194	void
1075	ev_check_stop (struct ev_check *w)	1195	ev_check_stop (EV_P_ struct ev_check *w)
1076	{	1196	{
1077	ev_clear_pending ((W)w);	1197	ev_clear_pending (EV_A_ (W)w);
1078	if (ev_is_active (w))	1198	if (ev_is_active (w))
1079	return;	1199	return;
1080		1200
1081	checks [w->active - 1] = checks [--checkcnt];	1201	checks [w->active - 1] = checks [--checkcnt];
1082	ev_stop ((W)w);	1202	ev_stop (EV_A_ (W)w);
1083	}	1203	}
1084		1204
1085	void	1205	void
1086	ev_child_start (struct ev_child *w)	1206	ev_child_start (EV_P_ struct ev_child *w)
1087	{	1207	{
1088	if (ev_is_active (w))	1208	if (ev_is_active (w))
1089	return;	1209	return;
1090		1210
1091	ev_start ((W)w, 1);	1211	ev_start (EV_A_ (W)w, 1);
1092	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1212	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1093	}	1213	}
1094		1214
1095	void	1215	void
1096	ev_child_stop (struct ev_child *w)	1216	ev_child_stop (EV_P_ struct ev_child *w)
1097	{	1217	{
1098	ev_clear_pending ((W)w);	1218	ev_clear_pending (EV_A_ (W)w);
1099	if (ev_is_active (w))	1219	if (ev_is_active (w))
1100	return;	1220	return;
1101		1221
1102	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1222	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1103	ev_stop ((W)w);	1223	ev_stop (EV_A_ (W)w);
1104	}	1224	}
1105		1225
1106	/*****************************************************************************/	1226	/*****************************************************************************/
1107		1227
1108	struct ev_once	1228	struct ev_once
…		…
1112	void (cb)(int revents, void arg);	1232	void (cb)(int revents, void arg);
1113	void *arg;	1233	void *arg;
1114	};	1234	};
1115		1235
1116	static void	1236	static void
1117	once_cb (struct ev_once *once, int revents)	1237	once_cb (EV_P_ struct ev_once *once, int revents)
1118	{	1238	{
1119	void (cb)(int revents, void arg) = once->cb;	1239	void (cb)(int revents, void arg) = once->cb;
1120	void *arg = once->arg;	1240	void *arg = once->arg;
1121		1241
1122	ev_io_stop (&once->io);	1242	ev_io_stop (EV_A_ &once->io);
1123	ev_timer_stop (&once->to);	1243	ev_timer_stop (EV_A_ &once->to);
1124	free (once);	1244	free (once);
1125		1245
1126	cb (revents, arg);	1246	cb (revents, arg);
1127	}	1247	}
1128		1248
1129	static void	1249	static void
1130	once_cb_io (struct ev_io *w, int revents)	1250	once_cb_io (EV_P_ struct ev_io *w, int revents)
1131	{	1251	{
1132	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1252	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1133	}	1253	}
1134		1254
1135	static void	1255	static void
1136	once_cb_to (struct ev_timer *w, int revents)	1256	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1137	{	1257	{
1138	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1258	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1139	}	1259	}
1140		1260
1141	void	1261	void
1142	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1262	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1143	{	1263	{
1144	struct ev_once *once = malloc (sizeof (struct ev_once));	1264	struct ev_once *once = malloc (sizeof (struct ev_once));
1145		1265
1146	if (!once)	1266	if (!once)
1147	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1267	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1152		1272
1153	ev_watcher_init (&once->io, once_cb_io);	1273	ev_watcher_init (&once->io, once_cb_io);
1154	if (fd >= 0)	1274	if (fd >= 0)
1155	{	1275	{
1156	ev_io_set (&once->io, fd, events);	1276	ev_io_set (&once->io, fd, events);
1157	ev_io_start (&once->io);	1277	ev_io_start (EV_A_ &once->io);
1158	}	1278	}
1159		1279
1160	ev_watcher_init (&once->to, once_cb_to);	1280	ev_watcher_init (&once->to, once_cb_to);
1161	if (timeout >= 0.)	1281	if (timeout >= 0.)
1162	{	1282	{
1163	ev_timer_set (&once->to, timeout, 0.);	1283	ev_timer_set (&once->to, timeout, 0.);
1164	ev_timer_start (&once->to);	1284	ev_timer_start (EV_A_ &once->to);
1165	}	1285	}
1166	}	1286	}
1167	}	1287	}
1168		1288
1169	/*****************************************************************************/	1289	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs. Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC