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

Comparing libev/ev.c (file contents):
Revision 1.40 by root, Fri Nov 2 11:02:23 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
		63	#ifndef EV_USEV_POLL
		64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */
		65	#endif
		66
61	#ifndef EV_USE_EPOLL	67	#ifndef EV_USE_EPOLL
62	# 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
63	#endif	73	#endif
64		74
65	#ifndef EV_USE_REALTIME	75	#ifndef EV_USE_REALTIME
66	# define EV_USE_REALTIME 1	76	# define EV_USE_REALTIME 1
67	#endif	77	#endif
…		…
96	#endif	106	#endif
97		107
98	#define expect_false(expr) expect ((expr) != 0, 0)	108	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	109	#define expect_true(expr) expect ((expr) != 0, 1)
100		110
		111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		113
101	typedef struct ev_watcher *W;	114	typedef struct ev_watcher *W;
102	typedef struct ev_watcher_list *WL;	115	typedef struct ev_watcher_list *WL;
103	typedef struct ev_watcher_time *WT;	116	typedef struct ev_watcher_time *WT;
104		117
105	static ev_tstamp now_floor, now, diff; /* monotonic clock */	118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */
106	ev_tstamp ev_now;	119	static ev_tstamp rt_now;
107	int ev_method;	120	static int method;
108		121
109	static int have_monotonic; /* runtime */	122	static int have_monotonic; /* runtime */
110		123
111	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
112	static void (*method_modify)(int fd, int oev, int nev);	125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
113	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
114		156
115	/*****************************************************************************/	157	/*****************************************************************************/
116		158
117	ev_tstamp	159	inline ev_tstamp
118	ev_time (void)	160	ev_time (void)
119	{	161	{
120	#if EV_USE_REALTIME	162	#if EV_USE_REALTIME
121	struct timespec ts;	163	struct timespec ts;
122	clock_gettime (CLOCK_REALTIME, &ts);	164	clock_gettime (CLOCK_REALTIME, &ts);
…		…
126	gettimeofday (&tv, 0);	168	gettimeofday (&tv, 0);
127	return tv.tv_sec + tv.tv_usec * 1e-6;	169	return tv.tv_sec + tv.tv_usec * 1e-6;
128	#endif	170	#endif
129	}	171	}
130		172
131	static ev_tstamp	173	inline ev_tstamp
132	get_clock (void)	174	get_clock (void)
133	{	175	{
134	#if EV_USE_MONOTONIC	176	#if EV_USE_MONOTONIC
135	if (expect_true (have_monotonic))	177	if (expect_true (have_monotonic))
136	{	178	{
…		…
139	return ts.tv_sec + ts.tv_nsec * 1e-9;	181	return ts.tv_sec + ts.tv_nsec * 1e-9;
140	}	182	}
141	#endif	183	#endif
142		184
143	return ev_time ();	185	return ev_time ();
		186	}
		187
		188	ev_tstamp
		189	ev_now (EV_P)
		190	{
		191	return rt_now;
144	}	192	}
145		193
146	#define array_roundsize(base,n) ((n) \| 4 & ~3)	194	#define array_roundsize(base,n) ((n) \| 4 & ~3)
147		195
148	#define array_needsize(base,cur,cnt,init) \	196	#define array_needsize(base,cur,cnt,init) \
…		…
162		210
163	/*****************************************************************************/	211	/*****************************************************************************/
164		212
165	typedef struct	213	typedef struct
166	{	214	{
167	struct ev_io *head;	215	struct ev_watcher_list *head;
168	unsigned char events;	216	unsigned char events;
169	unsigned char reify;	217	unsigned char reify;
170	} ANFD;	218	} ANFD;
171		219
172	static ANFD *anfds;	220	static ANFD *anfds;
…		…
189	{	237	{
190	W w;	238	W w;
191	int events;	239	int events;
192	} ANPENDING;	240	} ANPENDING;
193		241
194	static ANPENDING *pendings;	242	static ANPENDING *pendings [NUMPRI];
195	static int pendingmax, pendingcnt;	243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
196		244
197	static void	245	static void
198	event (W w, int events)	246	event (EV_P_ W w, int events)
199	{	247	{
200	if (w->pending)	248	if (w->pending)
201	{	249	{
202	pendings [w->pending - 1].events \|= events;	250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
203	return;	251	return;
204	}	252	}
205		253
206	w->pending = ++pendingcnt;	254	w->pending = ++pendingcnt [ABSPRI (w)];
207	array_needsize (pendings, pendingmax, pendingcnt, );	255	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
208	pendings [pendingcnt - 1].w = w;	256	pendings [ABSPRI (w)][w->pending - 1].w = w;
209	pendings [pendingcnt - 1].events = events;	257	pendings [ABSPRI (w)][w->pending - 1].events = events;
210	}	258	}
211		259
212	static void	260	static void
213	queue_events (W *events, int eventcnt, int type)	261	queue_events (EV_P_ W *events, int eventcnt, int type)
214	{	262	{
215	int i;	263	int i;
216		264
217	for (i = 0; i < eventcnt; ++i)	265	for (i = 0; i < eventcnt; ++i)
218	event (events [i], type);	266	event (EV_A_ events [i], type);
219	}	267	}
220		268
221	static void	269	static void
222	fd_event (int fd, int events)	270	fd_event (EV_P_ int fd, int events)
223	{	271	{
224	ANFD *anfd = anfds + fd;	272	ANFD *anfd = anfds + fd;
225	struct ev_io *w;	273	struct ev_io *w;
226		274
227	for (w = anfd->head; w; w = w->next)	275	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
228	{	276	{
229	int ev = w->events & events;	277	int ev = w->events & events;
230		278
231	if (ev)	279	if (ev)
232	event ((W)w, ev);	280	event (EV_A_ (W)w, ev);
233	}	281	}
234	}	282	}
235		283
236	/*****************************************************************************/	284	/*****************************************************************************/
237		285
238	static int *fdchanges;	286	static int *fdchanges;
239	static int fdchangemax, fdchangecnt;	287	static int fdchangemax, fdchangecnt;
240		288
241	static void	289	static void
242	fd_reify (void)	290	fd_reify (EV_P)
243	{	291	{
244	int i;	292	int i;
245		293
246	for (i = 0; i < fdchangecnt; ++i)	294	for (i = 0; i < fdchangecnt; ++i)
247	{	295	{
…		…
249	ANFD *anfd = anfds + fd;	297	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	298	struct ev_io *w;
251		299
252	int events = 0;	300	int events = 0;
253		301
254	for (w = anfd->head; w; w = w->next)	302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	events \|= w->events;	303	events \|= w->events;
256		304
257	anfd->reify = 0;	305	anfd->reify = 0;
258		306
259	if (anfd->events != events)	307	if (anfd->events != events)
260	{	308	{
261	method_modify (fd, anfd->events, events);	309	method_modify (EV_A_ fd, anfd->events, events);
262	anfd->events = events;	310	anfd->events = events;
263	}	311	}
264	}	312	}
265		313
266	fdchangecnt = 0;	314	fdchangecnt = 0;
267	}	315	}
268		316
269	static void	317	static void
270	fd_change (int fd)	318	fd_change (EV_P_ int fd)
271	{	319	{
272	if (anfds [fd].reify \|\| fdchangecnt < 0)	320	if (anfds [fd].reify \|\| fdchangecnt < 0)
273	return;	321	return;
274		322
275	anfds [fd].reify = 1;	323	anfds [fd].reify = 1;
…		…
277	++fdchangecnt;	325	++fdchangecnt;
278	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
279	fdchanges [fdchangecnt - 1] = fd;	327	fdchanges [fdchangecnt - 1] = fd;
280	}	328	}
281		329
		330	static void
		331	fd_kill (EV_P_ int fd)
		332	{
		333	struct ev_io *w;
		334
		335	while ((w = (struct ev_io *)anfds [fd].head))
		336	{
		337	ev_io_stop (EV_A_ w);
		338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		339	}
		340	}
		341
282	/* called on EBADF to verify fds */	342	/* called on EBADF to verify fds */
283	static void	343	static void
284	fd_recheck (void)	344	fd_ebadf (EV_P)
285	{	345	{
286	int fd;	346	int fd;
287		347
288	for (fd = 0; fd < anfdmax; ++fd)	348	for (fd = 0; fd < anfdmax; ++fd)
289	if (anfds [fd].events)	349	if (anfds [fd].events)
290	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
291	while (anfds [fd].head)	351	fd_kill (EV_A_ fd);
		352	}
		353
		354	/* called on ENOMEM in select/poll to kill some fds and retry */
		355	static void
		356	fd_enomem (EV_P)
		357	{
		358	int fd = anfdmax;
		359
		360	while (fd--)
		361	if (anfds [fd].events)
292	{	362	{
293	ev_io_stop (anfds [fd].head);	363	close (fd);
294	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	364	fd_kill (EV_A_ fd);
		365	return;
295	}	366	}
296	}	367	}
297		368
298	/*****************************************************************************/	369	/*****************************************************************************/
299		370
300	static struct ev_timer **timers;	371	static struct ev_timer **timers;
…		…
346		417
347	/*****************************************************************************/	418	/*****************************************************************************/
348		419
349	typedef struct	420	typedef struct
350	{	421	{
351	struct ev_signal *head;	422	struct ev_watcher_list *head;
352	sig_atomic_t volatile gotsig;	423	sig_atomic_t volatile gotsig;
353	} ANSIG;	424	} ANSIG;
354		425
355	static ANSIG *signals;	426	static ANSIG *signals;
356	static int signalmax;	427	static int signalmax;
…		…
376	{	447	{
377	signals [signum - 1].gotsig = 1;	448	signals [signum - 1].gotsig = 1;
378		449
379	if (!gotsig)	450	if (!gotsig)
380	{	451	{
		452	int old_errno = errno;
381	gotsig = 1;	453	gotsig = 1;
382	write (sigpipe [1], &signum, 1);	454	write (sigpipe [1], &signum, 1);
		455	errno = old_errno;
383	}	456	}
384	}	457	}
385		458
386	static void	459	static void
387	sigcb (struct ev_io *iow, int revents)	460	sigcb (EV_P_ struct ev_io *iow, int revents)
388	{	461	{
389	struct ev_signal *w;	462	struct ev_watcher_list *w;
390	int signum;	463	int signum;
391		464
392	read (sigpipe [0], &revents, 1);	465	read (sigpipe [0], &revents, 1);
393	gotsig = 0;	466	gotsig = 0;
394		467
…		…
396	if (signals [signum].gotsig)	469	if (signals [signum].gotsig)
397	{	470	{
398	signals [signum].gotsig = 0;	471	signals [signum].gotsig = 0;
399		472
400	for (w = signals [signum].head; w; w = w->next)	473	for (w = signals [signum].head; w; w = w->next)
401	event ((W)w, EV_SIGNAL);	474	event (EV_A_ (W)w, EV_SIGNAL);
402	}	475	}
403	}	476	}
404		477
405	static void	478	static void
406	siginit (void)	479	siginit (EV_P)
407	{	480	{
		481	#ifndef WIN32
408	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	482	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
409	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	483	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
410		484
411	/* rather than sort out wether we really need nb, set it */	485	/* rather than sort out wether we really need nb, set it */
412	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
413	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		488	#endif
414		489
415	ev_io_set (&sigev, sigpipe [0], EV_READ);	490	ev_io_set (&sigev, sigpipe [0], EV_READ);
416	ev_io_start (&sigev);	491	ev_io_start (&sigev);
		492	ev_unref (EV_A); /* child watcher should not keep loop alive */
417	}	493	}
418		494
419	/*****************************************************************************/	495	/*****************************************************************************/
420		496
421	static struct ev_idle **idles;	497	static struct ev_idle **idles;
…		…
430	/*****************************************************************************/	506	/*****************************************************************************/
431		507
432	static struct ev_child *childs [PID_HASHSIZE];	508	static struct ev_child *childs [PID_HASHSIZE];
433	static struct ev_signal childev;	509	static struct ev_signal childev;
434		510
		511	#ifndef WIN32
		512
435	#ifndef WCONTINUED	513	#ifndef WCONTINUED
436	# define WCONTINUED 0	514	# define WCONTINUED 0
437	#endif	515	#endif
438		516
439	static void	517	static void
440	childcb (struct ev_signal *sw, int revents)	518	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
441	{	519	{
442	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	{
443	int pid, status;	535	int pid, status;
444		536
445	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	537	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
446	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	538	{
447	if (w->pid == pid \|\| !w->pid)	539	/* make sure we are called again until all childs have been reaped */
448	{	540	event (EV_A_ (W)sw, EV_SIGNAL);
449	w->status = status;	541
450	event ((W)w, EV_CHILD);	542	child_reap (EV_A_ sw, pid, pid, status);
451	}	543	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		544	}
452	}	545	}
		546
		547	#endif
453		548
454	/*****************************************************************************/	549	/*****************************************************************************/
455		550
		551	#if EV_USE_KQUEUE
		552	# include "ev_kqueue.c"
		553	#endif
456	#if EV_USE_EPOLL	554	#if EV_USE_EPOLL
457	# include "ev_epoll.c"	555	# include "ev_epoll.c"
458	#endif	556	#endif
		557	#if EV_USEV_POLL
		558	# include "ev_poll.c"
		559	#endif
459	#if EV_USE_SELECT	560	#if EV_USE_SELECT
460	# include "ev_select.c"	561	# include "ev_select.c"
461	#endif	562	#endif
462		563
463	int	564	int
…		…
470	ev_version_minor (void)	571	ev_version_minor (void)
471	{	572	{
472	return EV_VERSION_MINOR;	573	return EV_VERSION_MINOR;
473	}	574	}
474		575
475	int ev_init (int flags)	576	/* return true if we are running with elevated privileges and should ignore env variables */
		577	static int
		578	enable_secure (void)
476	{	579	{
		580	#ifdef WIN32
		581	return 0;
		582	#else
		583	return getuid () != geteuid ()
		584	\|\| getgid () != getegid ();
		585	#endif
		586	}
		587
		588	int
		589	ev_method (EV_P)
		590	{
		591	return method;
		592	}
		593
		594	int
		595	ev_init (EV_P_ int methods)
		596	{
477	if (!ev_method)	597	if (!method)
478	{	598	{
479	#if EV_USE_MONOTONIC	599	#if EV_USE_MONOTONIC
480	{	600	{
481	struct timespec ts;	601	struct timespec ts;
482	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	602	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
483	have_monotonic = 1;	603	have_monotonic = 1;
484	}	604	}
485	#endif	605	#endif
486		606
487	ev_now = ev_time ();	607	rt_now = ev_time ();
488	now = get_clock ();	608	mn_now = get_clock ();
489	now_floor = now;	609	now_floor = mn_now;
490	diff = ev_now - now;	610	diff = rt_now - mn_now;
491		611
492	if (pipe (sigpipe))	612	if (pipe (sigpipe))
493	return 0;	613	return 0;
494		614
		615	if (methods == EVMETHOD_AUTO)
		616	if (!enable_secure () && getenv ("LIBmethodS"))
		617	methods = atoi (getenv ("LIBmethodS"));
		618	else
495	ev_method = EVMETHOD_NONE;	619	methods = EVMETHOD_ANY;
		620
		621	method = 0;
		622	#if EV_USE_KQUEUE
		623	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		624	#endif
496	#if EV_USE_EPOLL	625	#if EV_USE_EPOLL
497	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	626	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		627	#endif
		628	#if EV_USEV_POLL
		629	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
498	#endif	630	#endif
499	#if EV_USE_SELECT	631	#if EV_USE_SELECT
500	if (ev_method == EVMETHOD_NONE) select_init (flags);	632	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
501	#endif	633	#endif
502		634
503	if (ev_method)	635	if (method)
504	{	636	{
505	ev_watcher_init (&sigev, sigcb);	637	ev_watcher_init (&sigev, sigcb);
		638	ev_set_priority (&sigev, EV_MAXPRI);
506	siginit ();	639	siginit (EV_A);
507		640
		641	#ifndef WIN32
508	ev_signal_init (&childev, childcb, SIGCHLD);	642	ev_signal_init (&childev, childcb, SIGCHLD);
		643	ev_set_priority (&childev, EV_MAXPRI);
509	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
510	}	647	}
511	}	648	}
512		649
513	return ev_method;	650	return method;
514	}	651	}
515		652
516	/*****************************************************************************/	653	/*****************************************************************************/
517		654
518	void	655	void
…		…
529		666
530	void	667	void
531	ev_fork_child (void)	668	ev_fork_child (void)
532	{	669	{
533	#if EV_USE_EPOLL	670	#if EV_USE_EPOLL
534	if (ev_method == EVMETHOD_EPOLL)	671	if (method == EVMETHOD_EPOLL)
535	epoll_postfork_child ();	672	epoll_postfork_child ();
536	#endif	673	#endif
537		674
538	ev_io_stop (&sigev);	675	ev_io_stop (&sigev);
539	close (sigpipe [0]);	676	close (sigpipe [0]);
…		…
543	}	680	}
544		681
545	/*****************************************************************************/	682	/*****************************************************************************/
546		683
547	static void	684	static void
548	call_pending (void)	685	call_pending (EV_P)
549	{	686	{
		687	int pri;
		688
		689	for (pri = NUMPRI; pri--; )
550	while (pendingcnt)	690	while (pendingcnt [pri])
551	{	691	{
552	ANPENDING *p = pendings + --pendingcnt;	692	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
553		693
554	if (p->w)	694	if (p->w)
555	{	695	{
556	p->w->pending = 0;	696	p->w->pending = 0;
557	p->w->cb (p->w, p->events);	697	p->w->cb (EV_A_ p->w, p->events);
558	}	698	}
559	}	699	}
560	}	700	}
561		701
562	static void	702	static void
563	timers_reify (void)	703	timers_reify (EV_P)
564	{	704	{
565	while (timercnt && timers [0]->at <= now)	705	while (timercnt && timers [0]->at <= mn_now)
566	{	706	{
567	struct ev_timer *w = timers [0];	707	struct ev_timer *w = timers [0];
568		708
569	/* first reschedule or stop timer */	709	/* first reschedule or stop timer */
570	if (w->repeat)	710	if (w->repeat)
571	{	711	{
572	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.));
573	w->at = now + w->repeat;	713	w->at = mn_now + w->repeat;
574	downheap ((WT *)timers, timercnt, 0);	714	downheap ((WT *)timers, timercnt, 0);
575	}	715	}
576	else	716	else
577	ev_timer_stop (w); /* nonrepeating: stop timer */	717	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
578		718
579	event ((W)w, EV_TIMEOUT);	719	event ((W)w, EV_TIMEOUT);
580	}	720	}
581	}	721	}
582		722
583	static void	723	static void
584	periodics_reify (void)	724	periodics_reify (EV_P)
585	{	725	{
586	while (periodiccnt && periodics [0]->at <= ev_now)	726	while (periodiccnt && periodics [0]->at <= rt_now)
587	{	727	{
588	struct ev_periodic *w = periodics [0];	728	struct ev_periodic *w = periodics [0];
589		729
590	/* first reschedule or stop timer */	730	/* first reschedule or stop timer */
591	if (w->interval)	731	if (w->interval)
592	{	732	{
593	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;
594	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));
595	downheap ((WT *)periodics, periodiccnt, 0);	735	downheap ((WT *)periodics, periodiccnt, 0);
596	}	736	}
597	else	737	else
598	ev_periodic_stop (w); /* nonrepeating: stop timer */	738	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
599		739
600	event ((W)w, EV_PERIODIC);	740	event (EV_A_ (W)w, EV_PERIODIC);
601	}	741	}
602	}	742	}
603		743
604	static void	744	static void
605	periodics_reschedule (ev_tstamp diff)	745	periodics_reschedule (EV_P_ ev_tstamp diff)
606	{	746	{
607	int i;	747	int i;
608		748
609	/* adjust periodics after time jump */	749	/* adjust periodics after time jump */
610	for (i = 0; i < periodiccnt; ++i)	750	for (i = 0; i < periodiccnt; ++i)
611	{	751	{
612	struct ev_periodic *w = periodics [i];	752	struct ev_periodic *w = periodics [i];
613		753
614	if (w->interval)	754	if (w->interval)
615	{	755	{
616	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;
617		757
618	if (fabs (diff) >= 1e-4)	758	if (fabs (diff) >= 1e-4)
619	{	759	{
620	ev_periodic_stop (w);	760	ev_periodic_stop (EV_A_ w);
621	ev_periodic_start (w);	761	ev_periodic_start (EV_A_ w);
622		762
623	i = 0; /* restart loop, inefficient, but time jumps should be rare */	763	i = 0; /* restart loop, inefficient, but time jumps should be rare */
624	}	764	}
625	}	765	}
626	}	766	}
627	}	767	}
628		768
629	static int	769	inline int
630	time_update_monotonic (void)	770	time_update_monotonic (EV_P)
631	{	771	{
632	now = get_clock ();	772	mn_now = get_clock ();
633		773
634	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	774	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
635	{	775	{
636	ev_now = now + diff;	776	rt_now = mn_now + diff;
637	return 0;	777	return 0;
638	}	778	}
639	else	779	else
640	{	780	{
641	now_floor = now;	781	now_floor = mn_now;
642	ev_now = ev_time ();	782	rt_now = ev_time ();
643	return 1;	783	return 1;
644	}	784	}
645	}	785	}
646		786
647	static void	787	static void
648	time_update (void)	788	time_update (EV_P)
649	{	789	{
650	int i;	790	int i;
651		791
652	#if EV_USE_MONOTONIC	792	#if EV_USE_MONOTONIC
653	if (expect_true (have_monotonic))	793	if (expect_true (have_monotonic))
654	{	794	{
655	if (time_update_monotonic ())	795	if (time_update_monotonic (EV_A))
656	{	796	{
657	ev_tstamp odiff = diff;	797	ev_tstamp odiff = diff;
658		798
659	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 */
660	{	800	{
661	diff = ev_now - now;	801	diff = rt_now - mn_now;
662		802
663	if (fabs (odiff - diff) < MIN_TIMEJUMP)	803	if (fabs (odiff - diff) < MIN_TIMEJUMP)
664	return; /* all is well */	804	return; /* all is well */
665		805
666	ev_now = ev_time ();	806	rt_now = ev_time ();
667	now = get_clock ();	807	mn_now = get_clock ();
668	now_floor = now;	808	now_floor = mn_now;
669	}	809	}
670		810
671	periodics_reschedule (diff - odiff);	811	periodics_reschedule (EV_A_ diff - odiff);
672	/* no timer adjustment, as the monotonic clock doesn't jump */	812	/* no timer adjustment, as the monotonic clock doesn't jump */
673	}	813	}
674	}	814	}
675	else	815	else
676	#endif	816	#endif
677	{	817	{
678	ev_now = ev_time ();	818	rt_now = ev_time ();
679		819
680	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))
681	{	821	{
682	periodics_reschedule (ev_now - now);	822	periodics_reschedule (EV_A_ rt_now - mn_now);
683		823
684	/* 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 */
685	for (i = 0; i < timercnt; ++i)	825	for (i = 0; i < timercnt; ++i)
686	timers [i]->at += diff;	826	timers [i]->at += diff;
687	}	827	}
688		828
689	now = ev_now;	829	mn_now = rt_now;
690	}	830	}
691	}	831	}
692		832
693	int ev_loop_done;	833	void
		834	ev_ref (EV_P)
		835	{
		836	++activecnt;
		837	}
694		838
		839	void
		840	ev_unref (EV_P)
		841	{
		842	--activecnt;
		843	}
		844
		845	static int loop_done;
		846
		847	void
695	void ev_loop (int flags)	848	ev_loop (EV_P_ int flags)
696	{	849	{
697	double block;	850	double block;
698	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	851	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
699		852
700	do	853	do
701	{	854	{
702	/* queue check watchers (and execute them) */	855	/* queue check watchers (and execute them) */
703	if (expect_false (preparecnt))	856	if (expect_false (preparecnt))
704	{	857	{
705	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	858	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
706	call_pending ();	859	call_pending (EV_A);
707	}	860	}
708		861
709	/* update fd-related kernel structures */	862	/* update fd-related kernel structures */
710	fd_reify ();	863	fd_reify (EV_A);
711		864
712	/* calculate blocking time */	865	/* calculate blocking time */
713		866
714	/* 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
715	always have timers, we just calculate it always */	868	always have timers, we just calculate it always */
716	#if EV_USE_MONOTONIC	869	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	870	if (expect_true (have_monotonic))
718	time_update_monotonic ();	871	time_update_monotonic (EV_A);
719	else	872	else
720	#endif	873	#endif
721	{	874	{
722	ev_now = ev_time ();	875	rt_now = ev_time ();
723	now = ev_now;	876	mn_now = rt_now;
724	}	877	}
725		878
726	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	879	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
727	block = 0.;	880	block = 0.;
728	else	881	else
729	{	882	{
730	block = MAX_BLOCKTIME;	883	block = MAX_BLOCKTIME;
731		884
732	if (timercnt)	885	if (timercnt)
733	{	886	{
734	ev_tstamp to = timers [0]->at - now + method_fudge;	887	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
735	if (block > to) block = to;	888	if (block > to) block = to;
736	}	889	}
737		890
738	if (periodiccnt)	891	if (periodiccnt)
739	{	892	{
740	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	893	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
741	if (block > to) block = to;	894	if (block > to) block = to;
742	}	895	}
743		896
744	if (block < 0.) block = 0.;	897	if (block < 0.) block = 0.;
745	}	898	}
746		899
747	method_poll (block);	900	method_poll (EV_A_ block);
748		901
749	/* update ev_now, do magic */	902	/* update rt_now, do magic */
750	time_update ();	903	time_update (EV_A);
751		904
752	/* queue pending timers and reschedule them */	905	/* queue pending timers and reschedule them */
753	timers_reify (); /* relative timers called last */	906	timers_reify (EV_A); /* relative timers called last */
754	periodics_reify (); /* absolute timers called first */	907	periodics_reify (EV_A); /* absolute timers called first */
755		908
756	/* queue idle watchers unless io or timers are pending */	909	/* queue idle watchers unless io or timers are pending */
757	if (!pendingcnt)	910	if (!pendingcnt)
758	queue_events ((W *)idles, idlecnt, EV_IDLE);	911	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
759		912
760	/* queue check watchers, to be executed first */	913	/* queue check watchers, to be executed first */
761	if (checkcnt)	914	if (checkcnt)
762	queue_events ((W *)checks, checkcnt, EV_CHECK);	915	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
763		916
764	call_pending ();	917	call_pending (EV_A);
765	}	918	}
766	while (!ev_loop_done);	919	while (activecnt && !loop_done);
767		920
768	if (ev_loop_done != 2)	921	if (loop_done != 2)
769	ev_loop_done = 0;	922	loop_done = 0;
		923	}
		924
		925	void
		926	ev_unloop (EV_P_ int how)
		927	{
		928	loop_done = how;
770	}	929	}
771		930
772	/*****************************************************************************/	931	/*****************************************************************************/
773		932
774	static void	933	inline void
775	wlist_add (WL *head, WL elem)	934	wlist_add (WL *head, WL elem)
776	{	935	{
777	elem->next = *head;	936	elem->next = *head;
778	*head = elem;	937	*head = elem;
779	}	938	}
780		939
781	static void	940	inline void
782	wlist_del (WL *head, WL elem)	941	wlist_del (WL *head, WL elem)
783	{	942	{
784	while (*head)	943	while (*head)
785	{	944	{
786	if (*head == elem)	945	if (*head == elem)
…		…
791		950
792	head = &(*head)->next;	951	head = &(*head)->next;
793	}	952	}
794	}	953	}
795		954
796	static void	955	inline void
797	ev_clear_pending (W w)	956	ev_clear_pending (EV_P_ W w)
798	{	957	{
799	if (w->pending)	958	if (w->pending)
800	{	959	{
801	pendings [w->pending - 1].w = 0;	960	pendings [ABSPRI (w)][w->pending - 1].w = 0;
802	w->pending = 0;	961	w->pending = 0;
803	}	962	}
804	}	963	}
805		964
806	static void	965	inline void
807	ev_start (W w, int active)	966	ev_start (EV_P_ W w, int active)
808	{	967	{
		968	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		969	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		970
809	w->active = active;	971	w->active = active;
		972	ev_ref (EV_A);
810	}	973	}
811		974
812	static void	975	inline void
813	ev_stop (W w)	976	ev_stop (EV_P_ W w)
814	{	977	{
		978	ev_unref (EV_A);
815	w->active = 0;	979	w->active = 0;
816	}	980	}
817		981
818	/*****************************************************************************/	982	/*****************************************************************************/
819		983
820	void	984	void
821	ev_io_start (struct ev_io *w)	985	ev_io_start (EV_P_ struct ev_io *w)
822	{	986	{
823	int fd = w->fd;	987	int fd = w->fd;
824		988
825	if (ev_is_active (w))	989	if (ev_is_active (w))
826	return;	990	return;
827		991
828	assert (("ev_io_start called with negative fd", fd >= 0));	992	assert (("ev_io_start called with negative fd", fd >= 0));
829		993
830	ev_start ((W)w, 1);	994	ev_start (EV_A_ (W)w, 1);
831	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	995	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
832	wlist_add ((WL *)&anfds[fd].head, (WL)w);	996	wlist_add ((WL *)&anfds[fd].head, (WL)w);
833		997
834	fd_change (fd);	998	fd_change (EV_A_ fd);
835	}	999	}
836		1000
837	void	1001	void
838	ev_io_stop (struct ev_io *w)	1002	ev_io_stop (EV_P_ struct ev_io *w)
839	{	1003	{
840	ev_clear_pending ((W)w);	1004	ev_clear_pending (EV_A_ (W)w);
841	if (!ev_is_active (w))	1005	if (!ev_is_active (w))
842	return;	1006	return;
843		1007
844	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1008	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
845	ev_stop ((W)w);	1009	ev_stop (EV_A_ (W)w);
846		1010
847	fd_change (w->fd);	1011	fd_change (EV_A_ w->fd);
848	}	1012	}
849		1013
850	void	1014	void
851	ev_timer_start (struct ev_timer *w)	1015	ev_timer_start (EV_P_ struct ev_timer *w)
852	{	1016	{
853	if (ev_is_active (w))	1017	if (ev_is_active (w))
854	return;	1018	return;
855		1019
856	w->at += now;	1020	w->at += mn_now;
857		1021
858	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.));
859		1023
860	ev_start ((W)w, ++timercnt);	1024	ev_start (EV_A_ (W)w, ++timercnt);
861	array_needsize (timers, timermax, timercnt, );	1025	array_needsize (timers, timermax, timercnt, );
862	timers [timercnt - 1] = w;	1026	timers [timercnt - 1] = w;
863	upheap ((WT *)timers, timercnt - 1);	1027	upheap ((WT *)timers, timercnt - 1);
864	}	1028	}
865		1029
866	void	1030	void
867	ev_timer_stop (struct ev_timer *w)	1031	ev_timer_stop (EV_P_ struct ev_timer *w)
868	{	1032	{
869	ev_clear_pending ((W)w);	1033	ev_clear_pending (EV_A_ (W)w);
870	if (!ev_is_active (w))	1034	if (!ev_is_active (w))
871	return;	1035	return;
872		1036
873	if (w->active < timercnt--)	1037	if (w->active < timercnt--)
874	{	1038	{
…		…
876	downheap ((WT *)timers, timercnt, w->active - 1);	1040	downheap ((WT *)timers, timercnt, w->active - 1);
877	}	1041	}
878		1042
879	w->at = w->repeat;	1043	w->at = w->repeat;
880		1044
881	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
882	}	1046	}
883		1047
884	void	1048	void
885	ev_timer_again (struct ev_timer *w)	1049	ev_timer_again (EV_P_ struct ev_timer *w)
886	{	1050	{
887	if (ev_is_active (w))	1051	if (ev_is_active (w))
888	{	1052	{
889	if (w->repeat)	1053	if (w->repeat)
890	{	1054	{
891	w->at = now + w->repeat;	1055	w->at = mn_now + w->repeat;
892	downheap ((WT *)timers, timercnt, w->active - 1);	1056	downheap ((WT *)timers, timercnt, w->active - 1);
893	}	1057	}
894	else	1058	else
895	ev_timer_stop (w);	1059	ev_timer_stop (EV_A_ w);
896	}	1060	}
897	else if (w->repeat)	1061	else if (w->repeat)
898	ev_timer_start (w);	1062	ev_timer_start (EV_A_ w);
899	}	1063	}
900		1064
901	void	1065	void
902	ev_periodic_start (struct ev_periodic *w)	1066	ev_periodic_start (EV_P_ struct ev_periodic *w)
903	{	1067	{
904	if (ev_is_active (w))	1068	if (ev_is_active (w))
905	return;	1069	return;
906		1070
907	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.));
908		1072
909	/* 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 */
910	if (w->interval)	1074	if (w->interval)
911	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1075	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
912		1076
913	ev_start ((W)w, ++periodiccnt);	1077	ev_start (EV_A_ (W)w, ++periodiccnt);
914	array_needsize (periodics, periodicmax, periodiccnt, );	1078	array_needsize (periodics, periodicmax, periodiccnt, );
915	periodics [periodiccnt - 1] = w;	1079	periodics [periodiccnt - 1] = w;
916	upheap ((WT *)periodics, periodiccnt - 1);	1080	upheap ((WT *)periodics, periodiccnt - 1);
917	}	1081	}
918		1082
919	void	1083	void
920	ev_periodic_stop (struct ev_periodic *w)	1084	ev_periodic_stop (EV_P_ struct ev_periodic *w)
921	{	1085	{
922	ev_clear_pending ((W)w);	1086	ev_clear_pending (EV_A_ (W)w);
923	if (!ev_is_active (w))	1087	if (!ev_is_active (w))
924	return;	1088	return;
925		1089
926	if (w->active < periodiccnt--)	1090	if (w->active < periodiccnt--)
927	{	1091	{
928	periodics [w->active - 1] = periodics [periodiccnt];	1092	periodics [w->active - 1] = periodics [periodiccnt];
929	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1093	downheap ((WT *)periodics, periodiccnt, w->active - 1);
930	}	1094	}
931		1095
932	ev_stop ((W)w);	1096	ev_stop (EV_A_ (W)w);
933	}	1097	}
934		1098
		1099	#ifndef SA_RESTART
		1100	# define SA_RESTART 0
		1101	#endif
		1102
935	void	1103	void
936	ev_signal_start (struct ev_signal *w)	1104	ev_signal_start (EV_P_ struct ev_signal *w)
937	{	1105	{
938	if (ev_is_active (w))	1106	if (ev_is_active (w))
939	return;	1107	return;
940		1108
941	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));
942		1110
943	ev_start ((W)w, 1);	1111	ev_start (EV_A_ (W)w, 1);
944	array_needsize (signals, signalmax, w->signum, signals_init);	1112	array_needsize (signals, signalmax, w->signum, signals_init);
945	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1113	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
946		1114
947	if (!w->next)	1115	if (!w->next)
948	{	1116	{
949	struct sigaction sa;	1117	struct sigaction sa;
950	sa.sa_handler = sighandler;	1118	sa.sa_handler = sighandler;
951	sigfillset (&sa.sa_mask);	1119	sigfillset (&sa.sa_mask);
952	sa.sa_flags = 0;	1120	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
953	sigaction (w->signum, &sa, 0);	1121	sigaction (w->signum, &sa, 0);
954	}	1122	}
955	}	1123	}
956		1124
957	void	1125	void
958	ev_signal_stop (struct ev_signal *w)	1126	ev_signal_stop (EV_P_ struct ev_signal *w)
959	{	1127	{
960	ev_clear_pending ((W)w);	1128	ev_clear_pending (EV_A_ (W)w);
961	if (!ev_is_active (w))	1129	if (!ev_is_active (w))
962	return;	1130	return;
963		1131
964	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1132	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
965	ev_stop ((W)w);	1133	ev_stop (EV_A_ (W)w);
966		1134
967	if (!signals [w->signum - 1].head)	1135	if (!signals [w->signum - 1].head)
968	signal (w->signum, SIG_DFL);	1136	signal (w->signum, SIG_DFL);
969	}	1137	}
970		1138
971	void	1139	void
972	ev_idle_start (struct ev_idle *w)	1140	ev_idle_start (EV_P_ struct ev_idle *w)
973	{	1141	{
974	if (ev_is_active (w))	1142	if (ev_is_active (w))
975	return;	1143	return;
976		1144
977	ev_start ((W)w, ++idlecnt);	1145	ev_start (EV_A_ (W)w, ++idlecnt);
978	array_needsize (idles, idlemax, idlecnt, );	1146	array_needsize (idles, idlemax, idlecnt, );
979	idles [idlecnt - 1] = w;	1147	idles [idlecnt - 1] = w;
980	}	1148	}
981		1149
982	void	1150	void
983	ev_idle_stop (struct ev_idle *w)	1151	ev_idle_stop (EV_P_ struct ev_idle *w)
984	{	1152	{
985	ev_clear_pending ((W)w);	1153	ev_clear_pending (EV_A_ (W)w);
986	if (ev_is_active (w))	1154	if (ev_is_active (w))
987	return;	1155	return;
988		1156
989	idles [w->active - 1] = idles [--idlecnt];	1157	idles [w->active - 1] = idles [--idlecnt];
990	ev_stop ((W)w);	1158	ev_stop (EV_A_ (W)w);
991	}	1159	}
992		1160
993	void	1161	void
994	ev_prepare_start (struct ev_prepare *w)	1162	ev_prepare_start (EV_P_ struct ev_prepare *w)
995	{	1163	{
996	if (ev_is_active (w))	1164	if (ev_is_active (w))
997	return;	1165	return;
998		1166
999	ev_start ((W)w, ++preparecnt);	1167	ev_start (EV_A_ (W)w, ++preparecnt);
1000	array_needsize (prepares, preparemax, preparecnt, );	1168	array_needsize (prepares, preparemax, preparecnt, );
1001	prepares [preparecnt - 1] = w;	1169	prepares [preparecnt - 1] = w;
1002	}	1170	}
1003		1171
1004	void	1172	void
1005	ev_prepare_stop (struct ev_prepare *w)	1173	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1006	{	1174	{
1007	ev_clear_pending ((W)w);	1175	ev_clear_pending (EV_A_ (W)w);
1008	if (ev_is_active (w))	1176	if (ev_is_active (w))
1009	return;	1177	return;
1010		1178
1011	prepares [w->active - 1] = prepares [--preparecnt];	1179	prepares [w->active - 1] = prepares [--preparecnt];
1012	ev_stop ((W)w);	1180	ev_stop (EV_A_ (W)w);
1013	}	1181	}
1014		1182
1015	void	1183	void
1016	ev_check_start (struct ev_check *w)	1184	ev_check_start (EV_P_ struct ev_check *w)
1017	{	1185	{
1018	if (ev_is_active (w))	1186	if (ev_is_active (w))
1019	return;	1187	return;
1020		1188
1021	ev_start ((W)w, ++checkcnt);	1189	ev_start (EV_A_ (W)w, ++checkcnt);
1022	array_needsize (checks, checkmax, checkcnt, );	1190	array_needsize (checks, checkmax, checkcnt, );
1023	checks [checkcnt - 1] = w;	1191	checks [checkcnt - 1] = w;
1024	}	1192	}
1025		1193
1026	void	1194	void
1027	ev_check_stop (struct ev_check *w)	1195	ev_check_stop (EV_P_ struct ev_check *w)
1028	{	1196	{
1029	ev_clear_pending ((W)w);	1197	ev_clear_pending (EV_A_ (W)w);
1030	if (ev_is_active (w))	1198	if (ev_is_active (w))
1031	return;	1199	return;
1032		1200
1033	checks [w->active - 1] = checks [--checkcnt];	1201	checks [w->active - 1] = checks [--checkcnt];
1034	ev_stop ((W)w);	1202	ev_stop (EV_A_ (W)w);
1035	}	1203	}
1036		1204
1037	void	1205	void
1038	ev_child_start (struct ev_child *w)	1206	ev_child_start (EV_P_ struct ev_child *w)
1039	{	1207	{
1040	if (ev_is_active (w))	1208	if (ev_is_active (w))
1041	return;	1209	return;
1042		1210
1043	ev_start ((W)w, 1);	1211	ev_start (EV_A_ (W)w, 1);
1044	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1212	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1045	}	1213	}
1046		1214
1047	void	1215	void
1048	ev_child_stop (struct ev_child *w)	1216	ev_child_stop (EV_P_ struct ev_child *w)
1049	{	1217	{
1050	ev_clear_pending ((W)w);	1218	ev_clear_pending (EV_A_ (W)w);
1051	if (ev_is_active (w))	1219	if (ev_is_active (w))
1052	return;	1220	return;
1053		1221
1054	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1222	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1055	ev_stop ((W)w);	1223	ev_stop (EV_A_ (W)w);
1056	}	1224	}
1057		1225
1058	/*****************************************************************************/	1226	/*****************************************************************************/
1059		1227
1060	struct ev_once	1228	struct ev_once
…		…
1064	void (cb)(int revents, void arg);	1232	void (cb)(int revents, void arg);
1065	void *arg;	1233	void *arg;
1066	};	1234	};
1067		1235
1068	static void	1236	static void
1069	once_cb (struct ev_once *once, int revents)	1237	once_cb (EV_P_ struct ev_once *once, int revents)
1070	{	1238	{
1071	void (cb)(int revents, void arg) = once->cb;	1239	void (cb)(int revents, void arg) = once->cb;
1072	void *arg = once->arg;	1240	void *arg = once->arg;
1073		1241
1074	ev_io_stop (&once->io);	1242	ev_io_stop (EV_A_ &once->io);
1075	ev_timer_stop (&once->to);	1243	ev_timer_stop (EV_A_ &once->to);
1076	free (once);	1244	free (once);
1077		1245
1078	cb (revents, arg);	1246	cb (revents, arg);
1079	}	1247	}
1080		1248
1081	static void	1249	static void
1082	once_cb_io (struct ev_io *w, int revents)	1250	once_cb_io (EV_P_ struct ev_io *w, int revents)
1083	{	1251	{
1084	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);
1085	}	1253	}
1086		1254
1087	static void	1255	static void
1088	once_cb_to (struct ev_timer *w, int revents)	1256	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1089	{	1257	{
1090	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);
1091	}	1259	}
1092		1260
1093	void	1261	void
1094	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)
1095	{	1263	{
1096	struct ev_once *once = malloc (sizeof (struct ev_once));	1264	struct ev_once *once = malloc (sizeof (struct ev_once));
1097		1265
1098	if (!once)	1266	if (!once)
1099	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1267	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1104		1272
1105	ev_watcher_init (&once->io, once_cb_io);	1273	ev_watcher_init (&once->io, once_cb_io);
1106	if (fd >= 0)	1274	if (fd >= 0)
1107	{	1275	{
1108	ev_io_set (&once->io, fd, events);	1276	ev_io_set (&once->io, fd, events);
1109	ev_io_start (&once->io);	1277	ev_io_start (EV_A_ &once->io);
1110	}	1278	}
1111		1279
1112	ev_watcher_init (&once->to, once_cb_to);	1280	ev_watcher_init (&once->to, once_cb_to);
1113	if (timeout >= 0.)	1281	if (timeout >= 0.)
1114	{	1282	{
1115	ev_timer_set (&once->to, timeout, 0.);	1283	ev_timer_set (&once->to, timeout, 0.);
1116	ev_timer_start (&once->to);	1284	ev_timer_start (EV_A_ &once->to);
1117	}	1285	}
1118	}	1286	}
1119	}	1287	}
1120		1288
1121	/*****************************************************************************/	1289	/*****************************************************************************/

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Comparing libev/ev.c (file contents): Revision 1.40 by root, Fri Nov 2 11:02:23 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 1.40 by root, Fri Nov 2 11:02:23 2007 UTC vs.
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC