[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 1.53 by root, Sat Nov 3 22:31:11 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 */
106	ev_tstamp ev_now;
107	int ev_method;
108
109	static int have_monotonic; /* runtime */
110
111	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
112	static void (*method_modify)(int fd, int oev, int nev);
113	static void (*method_poll)(ev_tstamp timeout);
114
115	/*****************************************************************************/	118	/*****************************************************************************/
116		119
117	ev_tstamp	120	typedef struct
		121	{
		122	struct ev_watcher_list *head;
		123	unsigned char events;
		124	unsigned char reify;
		125	} ANFD;
		126
		127	typedef struct
		128	{
		129	W w;
		130	int events;
		131	} ANPENDING;
		132
		133	#ifdef EV_MULTIPLICITY
		134	struct ev_loop
		135	{
		136	# define VAR(name,decl) decl
		137	# include "ev_vars.h"
		138	};
		139	#else
		140	# define VAR(name,decl) static decl
		141	# include "ev_vars.h"
		142	#endif
		143	#undef VAR
		144
		145	/*****************************************************************************/
		146
		147	inline ev_tstamp
118	ev_time (void)	148	ev_time (void)
119	{	149	{
120	#if EV_USE_REALTIME	150	#if EV_USE_REALTIME
121	struct timespec ts;	151	struct timespec ts;
122	clock_gettime (CLOCK_REALTIME, &ts);	152	clock_gettime (CLOCK_REALTIME, &ts);
…		…
126	gettimeofday (&tv, 0);	156	gettimeofday (&tv, 0);
127	return tv.tv_sec + tv.tv_usec * 1e-6;	157	return tv.tv_sec + tv.tv_usec * 1e-6;
128	#endif	158	#endif
129	}	159	}
130		160
131	static ev_tstamp	161	inline ev_tstamp
132	get_clock (void)	162	get_clock (void)
133	{	163	{
134	#if EV_USE_MONOTONIC	164	#if EV_USE_MONOTONIC
135	if (expect_true (have_monotonic))	165	if (expect_true (have_monotonic))
136	{	166	{
…		…
139	return ts.tv_sec + ts.tv_nsec * 1e-9;	169	return ts.tv_sec + ts.tv_nsec * 1e-9;
140	}	170	}
141	#endif	171	#endif
142		172
143	return ev_time ();	173	return ev_time ();
		174	}
		175
		176	ev_tstamp
		177	ev_now (EV_P)
		178	{
		179	return rt_now;
144	}	180	}
145		181
146	#define array_roundsize(base,n) ((n) \| 4 & ~3)	182	#define array_roundsize(base,n) ((n) \| 4 & ~3)
147		183
148	#define array_needsize(base,cur,cnt,init) \	184	#define array_needsize(base,cur,cnt,init) \
…		…
160	cur = newcnt; \	196	cur = newcnt; \
161	}	197	}
162		198
163	/*****************************************************************************/	199	/*****************************************************************************/
164		200
165	typedef struct
166	{
167	struct ev_io *head;
168	unsigned char events;
169	unsigned char reify;
170	} ANFD;
171
172	static ANFD *anfds;
173	static int anfdmax;
174
175	static void	201	static void
176	anfds_init (ANFD *base, int count)	202	anfds_init (ANFD *base, int count)
177	{	203	{
178	while (count--)	204	while (count--)
179	{	205	{
…		…
183		209
184	++base;	210	++base;
185	}	211	}
186	}	212	}
187		213
188	typedef struct
189	{
190	W w;
191	int events;
192	} ANPENDING;
193
194	static ANPENDING *pendings;
195	static int pendingmax, pendingcnt;
196
197	static void	214	static void
198	event (W w, int events)	215	event (EV_P_ W w, int events)
199	{	216	{
200	if (w->pending)	217	if (w->pending)
201	{	218	{
202	pendings [w->pending - 1].events \|= events;	219	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
203	return;	220	return;
204	}	221	}
205		222
206	w->pending = ++pendingcnt;	223	w->pending = ++pendingcnt [ABSPRI (w)];
207	array_needsize (pendings, pendingmax, pendingcnt, );	224	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
208	pendings [pendingcnt - 1].w = w;	225	pendings [ABSPRI (w)][w->pending - 1].w = w;
209	pendings [pendingcnt - 1].events = events;	226	pendings [ABSPRI (w)][w->pending - 1].events = events;
210	}	227	}
211		228
212	static void	229	static void
213	queue_events (W *events, int eventcnt, int type)	230	queue_events (EV_P_ W *events, int eventcnt, int type)
214	{	231	{
215	int i;	232	int i;
216		233
217	for (i = 0; i < eventcnt; ++i)	234	for (i = 0; i < eventcnt; ++i)
218	event (events [i], type);	235	event (EV_A_ events [i], type);
219	}	236	}
220		237
221	static void	238	static void
222	fd_event (int fd, int events)	239	fd_event (EV_P_ int fd, int events)
223	{	240	{
224	ANFD *anfd = anfds + fd;	241	ANFD *anfd = anfds + fd;
225	struct ev_io *w;	242	struct ev_io *w;
226		243
227	for (w = anfd->head; w; w = w->next)	244	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
228	{	245	{
229	int ev = w->events & events;	246	int ev = w->events & events;
230		247
231	if (ev)	248	if (ev)
232	event ((W)w, ev);	249	event (EV_A_ (W)w, ev);
233	}	250	}
234	}	251	}
235		252
236	/*****************************************************************************/	253	/*****************************************************************************/
237		254
238	static int *fdchanges;
239	static int fdchangemax, fdchangecnt;
240
241	static void	255	static void
242	fd_reify (void)	256	fd_reify (EV_P)
243	{	257	{
244	int i;	258	int i;
245		259
246	for (i = 0; i < fdchangecnt; ++i)	260	for (i = 0; i < fdchangecnt; ++i)
247	{	261	{
…		…
249	ANFD *anfd = anfds + fd;	263	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	264	struct ev_io *w;
251		265
252	int events = 0;	266	int events = 0;
253		267
254	for (w = anfd->head; w; w = w->next)	268	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	events \|= w->events;	269	events \|= w->events;
256		270
257	anfd->reify = 0;	271	anfd->reify = 0;
258		272
259	if (anfd->events != events)	273	if (anfd->events != events)
260	{	274	{
261	method_modify (fd, anfd->events, events);	275	method_modify (EV_A_ fd, anfd->events, events);
262	anfd->events = events;	276	anfd->events = events;
263	}	277	}
264	}	278	}
265		279
266	fdchangecnt = 0;	280	fdchangecnt = 0;
267	}	281	}
268		282
269	static void	283	static void
270	fd_change (int fd)	284	fd_change (EV_P_ int fd)
271	{	285	{
272	if (anfds [fd].reify \|\| fdchangecnt < 0)	286	if (anfds [fd].reify \|\| fdchangecnt < 0)
273	return;	287	return;
274		288
275	anfds [fd].reify = 1;	289	anfds [fd].reify = 1;
…		…
277	++fdchangecnt;	291	++fdchangecnt;
278	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	292	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
279	fdchanges [fdchangecnt - 1] = fd;	293	fdchanges [fdchangecnt - 1] = fd;
280	}	294	}
281		295
		296	static void
		297	fd_kill (EV_P_ int fd)
		298	{
		299	struct ev_io *w;
		300
		301	while ((w = (struct ev_io *)anfds [fd].head))
		302	{
		303	ev_io_stop (EV_A_ w);
		304	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
		305	}
		306	}
		307
282	/* called on EBADF to verify fds */	308	/* called on EBADF to verify fds */
283	static void	309	static void
284	fd_recheck (void)	310	fd_ebadf (EV_P)
285	{	311	{
286	int fd;	312	int fd;
287		313
288	for (fd = 0; fd < anfdmax; ++fd)	314	for (fd = 0; fd < anfdmax; ++fd)
289	if (anfds [fd].events)	315	if (anfds [fd].events)
290	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
291	while (anfds [fd].head)	317	fd_kill (EV_A_ fd);
		318	}
		319
		320	/* called on ENOMEM in select/poll to kill some fds and retry */
		321	static void
		322	fd_enomem (EV_P)
		323	{
		324	int fd = anfdmax;
		325
		326	while (fd--)
		327	if (anfds [fd].events)
292	{	328	{
293	ev_io_stop (anfds [fd].head);	329	close (fd);
294	event ((W)anfds [fd].head, EV_ERROR \| EV_READ \| EV_WRITE);	330	fd_kill (EV_A_ fd);
		331	return;
295	}	332	}
296	}	333	}
297		334
298	/*****************************************************************************/	335	/*****************************************************************************/
299
300	static struct ev_timer **timers;
301	static int timermax, timercnt;
302
303	static struct ev_periodic **periodics;
304	static int periodicmax, periodiccnt;
305		336
306	static void	337	static void
307	upheap (WT *timers, int k)	338	upheap (WT *timers, int k)
308	{	339	{
309	WT w = timers [k];	340	WT w = timers [k];
…		…
346		377
347	/*****************************************************************************/	378	/*****************************************************************************/
348		379
349	typedef struct	380	typedef struct
350	{	381	{
351	struct ev_signal *head;	382	struct ev_watcher_list *head;
352	sig_atomic_t volatile gotsig;	383	sig_atomic_t volatile gotsig;
353	} ANSIG;	384	} ANSIG;
354		385
355	static ANSIG *signals;	386	static ANSIG *signals;
356	static int signalmax;	387	static int signalmax;
357		388
358	static int sigpipe [2];	389	static int sigpipe [2];
359	static sig_atomic_t volatile gotsig;	390	static sig_atomic_t volatile gotsig;
360	static struct ev_io sigev;
361		391
362	static void	392	static void
363	signals_init (ANSIG *base, int count)	393	signals_init (ANSIG *base, int count)
364	{	394	{
365	while (count--)	395	while (count--)
…		…
376	{	406	{
377	signals [signum - 1].gotsig = 1;	407	signals [signum - 1].gotsig = 1;
378		408
379	if (!gotsig)	409	if (!gotsig)
380	{	410	{
		411	int old_errno = errno;
381	gotsig = 1;	412	gotsig = 1;
382	write (sigpipe [1], &signum, 1);	413	write (sigpipe [1], &signum, 1);
		414	errno = old_errno;
383	}	415	}
384	}	416	}
385		417
386	static void	418	static void
387	sigcb (struct ev_io *iow, int revents)	419	sigcb (EV_P_ struct ev_io *iow, int revents)
388	{	420	{
389	struct ev_signal *w;	421	struct ev_watcher_list *w;
390	int signum;	422	int signum;
391		423
392	read (sigpipe [0], &revents, 1);	424	read (sigpipe [0], &revents, 1);
393	gotsig = 0;	425	gotsig = 0;
394		426
…		…
396	if (signals [signum].gotsig)	428	if (signals [signum].gotsig)
397	{	429	{
398	signals [signum].gotsig = 0;	430	signals [signum].gotsig = 0;
399		431
400	for (w = signals [signum].head; w; w = w->next)	432	for (w = signals [signum].head; w; w = w->next)
401	event ((W)w, EV_SIGNAL);	433	event (EV_A_ (W)w, EV_SIGNAL);
402	}	434	}
403	}	435	}
404		436
405	static void	437	static void
406	siginit (void)	438	siginit (EV_P)
407	{	439	{
		440	#ifndef WIN32
408	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	441	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
409	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	442	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
410		443
411	/* rather than sort out wether we really need nb, set it */	444	/* rather than sort out wether we really need nb, set it */
412	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	445	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
413	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	446	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		447	#endif
414		448
415	ev_io_set (&sigev, sigpipe [0], EV_READ);	449	ev_io_set (&sigev, sigpipe [0], EV_READ);
416	ev_io_start (&sigev);	450	ev_io_start (&sigev);
		451	ev_unref (EV_A); /* child watcher should not keep loop alive */
417	}	452	}
418		453
419	/*****************************************************************************/	454	/*****************************************************************************/
420		455
421	static struct ev_idle **idles;	456	#ifndef WIN32
422	static int idlemax, idlecnt;
423
424	static struct ev_prepare **prepares;
425	static int preparemax, preparecnt;
426
427	static struct ev_check **checks;
428	static int checkmax, checkcnt;
429
430	/*****************************************************************************/
431
432	static struct ev_child *childs [PID_HASHSIZE];
433	static struct ev_signal childev;
434		457
435	#ifndef WCONTINUED	458	#ifndef WCONTINUED
436	# define WCONTINUED 0	459	# define WCONTINUED 0
437	#endif	460	#endif
438		461
439	static void	462	static void
440	childcb (struct ev_signal *sw, int revents)	463	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
441	{	464	{
442	struct ev_child *w;	465	struct ev_child *w;
		466
		467	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		468	if (w->pid == pid \|\| !w->pid)
		469	{
		470	w->priority = sw->priority; /* need to do it now */
		471	w->rpid = pid;
		472	w->rstatus = status;
		473	event (EV_A_ (W)w, EV_CHILD);
		474	}
		475	}
		476
		477	static void
		478	childcb (EV_P_ struct ev_signal *sw, int revents)
		479	{
443	int pid, status;	480	int pid, status;
444		481
445	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	482	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
446	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	483	{
447	if (w->pid == pid \|\| !w->pid)	484	/* make sure we are called again until all childs have been reaped */
448	{	485	event (EV_A_ (W)sw, EV_SIGNAL);
449	w->status = status;	486
450	event ((W)w, EV_CHILD);	487	child_reap (EV_A_ sw, pid, pid, status);
451	}	488	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		489	}
452	}	490	}
		491
		492	#endif
453		493
454	/*****************************************************************************/	494	/*****************************************************************************/
455		495
		496	#if EV_USE_KQUEUE
		497	# include "ev_kqueue.c"
		498	#endif
456	#if EV_USE_EPOLL	499	#if EV_USE_EPOLL
457	# include "ev_epoll.c"	500	# include "ev_epoll.c"
458	#endif	501	#endif
		502	#if EV_USEV_POLL
		503	# include "ev_poll.c"
		504	#endif
459	#if EV_USE_SELECT	505	#if EV_USE_SELECT
460	# include "ev_select.c"	506	# include "ev_select.c"
461	#endif	507	#endif
462		508
463	int	509	int
…		…
470	ev_version_minor (void)	516	ev_version_minor (void)
471	{	517	{
472	return EV_VERSION_MINOR;	518	return EV_VERSION_MINOR;
473	}	519	}
474		520
475	int ev_init (int flags)	521	/* return true if we are running with elevated privileges and should ignore env variables */
		522	static int
		523	enable_secure (void)
476	{	524	{
		525	#ifdef WIN32
		526	return 0;
		527	#else
		528	return getuid () != geteuid ()
		529	\|\| getgid () != getegid ();
		530	#endif
		531	}
		532
		533	int
		534	ev_method (EV_P)
		535	{
		536	return method;
		537	}
		538
		539	int
		540	ev_init (EV_P_ int methods)
		541	{
		542	#ifdef EV_MULTIPLICITY
		543	memset (loop, 0, sizeof (struct ev_loop));
		544	#endif
		545
477	if (!ev_method)	546	if (!method)
478	{	547	{
479	#if EV_USE_MONOTONIC	548	#if EV_USE_MONOTONIC
480	{	549	{
481	struct timespec ts;	550	struct timespec ts;
482	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	551	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
483	have_monotonic = 1;	552	have_monotonic = 1;
484	}	553	}
485	#endif	554	#endif
486		555
487	ev_now = ev_time ();	556	rt_now = ev_time ();
488	now = get_clock ();	557	mn_now = get_clock ();
489	now_floor = now;	558	now_floor = mn_now;
490	diff = ev_now - now;	559	diff = rt_now - mn_now;
491		560
492	if (pipe (sigpipe))	561	if (pipe (sigpipe))
493	return 0;	562	return 0;
494		563
		564	if (methods == EVMETHOD_AUTO)
		565	if (!enable_secure () && getenv ("LIBmethodS"))
		566	methods = atoi (getenv ("LIBmethodS"));
		567	else
495	ev_method = EVMETHOD_NONE;	568	methods = EVMETHOD_ANY;
		569
		570	method = 0;
		571	#if EV_USE_KQUEUE
		572	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		573	#endif
496	#if EV_USE_EPOLL	574	#if EV_USE_EPOLL
497	if (ev_method == EVMETHOD_NONE) epoll_init (flags);	575	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
		576	#endif
		577	#if EV_USEV_POLL
		578	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
498	#endif	579	#endif
499	#if EV_USE_SELECT	580	#if EV_USE_SELECT
500	if (ev_method == EVMETHOD_NONE) select_init (flags);	581	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
501	#endif	582	#endif
502		583
503	if (ev_method)	584	if (method)
504	{	585	{
505	ev_watcher_init (&sigev, sigcb);	586	ev_watcher_init (&sigev, sigcb);
		587	ev_set_priority (&sigev, EV_MAXPRI);
506	siginit ();	588	siginit (EV_A);
507		589
		590	#ifndef WIN32
508	ev_signal_init (&childev, childcb, SIGCHLD);	591	ev_signal_init (&childev, childcb, SIGCHLD);
		592	ev_set_priority (&childev, EV_MAXPRI);
509	ev_signal_start (&childev);	593	ev_signal_start (EV_A_ &childev);
		594	ev_unref (EV_A); /* child watcher should not keep loop alive */
		595	#endif
510	}	596	}
511	}	597	}
512		598
513	return ev_method;	599	return method;
514	}	600	}
515		601
516	/*****************************************************************************/	602	/*****************************************************************************/
517		603
518	void	604	void
…		…
529		615
530	void	616	void
531	ev_fork_child (void)	617	ev_fork_child (void)
532	{	618	{
533	#if EV_USE_EPOLL	619	#if EV_USE_EPOLL
534	if (ev_method == EVMETHOD_EPOLL)	620	if (method == EVMETHOD_EPOLL)
535	epoll_postfork_child ();	621	epoll_postfork_child ();
536	#endif	622	#endif
537		623
538	ev_io_stop (&sigev);	624	ev_io_stop (&sigev);
539	close (sigpipe [0]);	625	close (sigpipe [0]);
…		…
543	}	629	}
544		630
545	/*****************************************************************************/	631	/*****************************************************************************/
546		632
547	static void	633	static void
548	call_pending (void)	634	call_pending (EV_P)
549	{	635	{
		636	int pri;
		637
		638	for (pri = NUMPRI; pri--; )
550	while (pendingcnt)	639	while (pendingcnt [pri])
551	{	640	{
552	ANPENDING *p = pendings + --pendingcnt;	641	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
553		642
554	if (p->w)	643	if (p->w)
555	{	644	{
556	p->w->pending = 0;	645	p->w->pending = 0;
557	p->w->cb (p->w, p->events);	646	p->w->cb (EV_A_ p->w, p->events);
558	}	647	}
559	}	648	}
560	}	649	}
561		650
562	static void	651	static void
563	timers_reify (void)	652	timers_reify (EV_P)
564	{	653	{
565	while (timercnt && timers [0]->at <= now)	654	while (timercnt && timers [0]->at <= mn_now)
566	{	655	{
567	struct ev_timer *w = timers [0];	656	struct ev_timer *w = timers [0];
568		657
569	/* first reschedule or stop timer */	658	/* first reschedule or stop timer */
570	if (w->repeat)	659	if (w->repeat)
571	{	660	{
572	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	661	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
573	w->at = now + w->repeat;	662	w->at = mn_now + w->repeat;
574	downheap ((WT *)timers, timercnt, 0);	663	downheap ((WT *)timers, timercnt, 0);
575	}	664	}
576	else	665	else
577	ev_timer_stop (w); /* nonrepeating: stop timer */	666	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
578		667
579	event ((W)w, EV_TIMEOUT);	668	event ((W)w, EV_TIMEOUT);
580	}	669	}
581	}	670	}
582		671
583	static void	672	static void
584	periodics_reify (void)	673	periodics_reify (EV_P)
585	{	674	{
586	while (periodiccnt && periodics [0]->at <= ev_now)	675	while (periodiccnt && periodics [0]->at <= rt_now)
587	{	676	{
588	struct ev_periodic *w = periodics [0];	677	struct ev_periodic *w = periodics [0];
589		678
590	/* first reschedule or stop timer */	679	/* first reschedule or stop timer */
591	if (w->interval)	680	if (w->interval)
592	{	681	{
593	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	682	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));	683	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));
595	downheap ((WT *)periodics, periodiccnt, 0);	684	downheap ((WT *)periodics, periodiccnt, 0);
596	}	685	}
597	else	686	else
598	ev_periodic_stop (w); /* nonrepeating: stop timer */	687	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
599		688
600	event ((W)w, EV_PERIODIC);	689	event (EV_A_ (W)w, EV_PERIODIC);
601	}	690	}
602	}	691	}
603		692
604	static void	693	static void
605	periodics_reschedule (ev_tstamp diff)	694	periodics_reschedule (EV_P_ ev_tstamp diff)
606	{	695	{
607	int i;	696	int i;
608		697
609	/* adjust periodics after time jump */	698	/* adjust periodics after time jump */
610	for (i = 0; i < periodiccnt; ++i)	699	for (i = 0; i < periodiccnt; ++i)
611	{	700	{
612	struct ev_periodic *w = periodics [i];	701	struct ev_periodic *w = periodics [i];
613		702
614	if (w->interval)	703	if (w->interval)
615	{	704	{
616	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	705	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;
617		706
618	if (fabs (diff) >= 1e-4)	707	if (fabs (diff) >= 1e-4)
619	{	708	{
620	ev_periodic_stop (w);	709	ev_periodic_stop (EV_A_ w);
621	ev_periodic_start (w);	710	ev_periodic_start (EV_A_ w);
622		711
623	i = 0; /* restart loop, inefficient, but time jumps should be rare */	712	i = 0; /* restart loop, inefficient, but time jumps should be rare */
624	}	713	}
625	}	714	}
626	}	715	}
627	}	716	}
628		717
629	static int	718	inline int
630	time_update_monotonic (void)	719	time_update_monotonic (EV_P)
631	{	720	{
632	now = get_clock ();	721	mn_now = get_clock ();
633		722
634	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	723	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
635	{	724	{
636	ev_now = now + diff;	725	rt_now = mn_now + diff;
637	return 0;	726	return 0;
638	}	727	}
639	else	728	else
640	{	729	{
641	now_floor = now;	730	now_floor = mn_now;
642	ev_now = ev_time ();	731	rt_now = ev_time ();
643	return 1;	732	return 1;
644	}	733	}
645	}	734	}
646		735
647	static void	736	static void
648	time_update (void)	737	time_update (EV_P)
649	{	738	{
650	int i;	739	int i;
651		740
652	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
653	if (expect_true (have_monotonic))	742	if (expect_true (have_monotonic))
654	{	743	{
655	if (time_update_monotonic ())	744	if (time_update_monotonic (EV_A))
656	{	745	{
657	ev_tstamp odiff = diff;	746	ev_tstamp odiff = diff;
658		747
659	for (i = 4; --i; ) /* loop a few times, before making important decisions */	748	for (i = 4; --i; ) /* loop a few times, before making important decisions */
660	{	749	{
661	diff = ev_now - now;	750	diff = rt_now - mn_now;
662		751
663	if (fabs (odiff - diff) < MIN_TIMEJUMP)	752	if (fabs (odiff - diff) < MIN_TIMEJUMP)
664	return; /* all is well */	753	return; /* all is well */
665		754
666	ev_now = ev_time ();	755	rt_now = ev_time ();
667	now = get_clock ();	756	mn_now = get_clock ();
668	now_floor = now;	757	now_floor = mn_now;
669	}	758	}
670		759
671	periodics_reschedule (diff - odiff);	760	periodics_reschedule (EV_A_ diff - odiff);
672	/* no timer adjustment, as the monotonic clock doesn't jump */	761	/* no timer adjustment, as the monotonic clock doesn't jump */
673	}	762	}
674	}	763	}
675	else	764	else
676	#endif	765	#endif
677	{	766	{
678	ev_now = ev_time ();	767	rt_now = ev_time ();
679		768
680	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	769	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
681	{	770	{
682	periodics_reschedule (ev_now - now);	771	periodics_reschedule (EV_A_ rt_now - mn_now);
683		772
684	/* adjust timers. this is easy, as the offset is the same for all */	773	/* adjust timers. this is easy, as the offset is the same for all */
685	for (i = 0; i < timercnt; ++i)	774	for (i = 0; i < timercnt; ++i)
686	timers [i]->at += diff;	775	timers [i]->at += diff;
687	}	776	}
688		777
689	now = ev_now;	778	mn_now = rt_now;
690	}	779	}
691	}	780	}
692		781
693	int ev_loop_done;	782	void
		783	ev_ref (EV_P)
		784	{
		785	++activecnt;
		786	}
694		787
		788	void
		789	ev_unref (EV_P)
		790	{
		791	--activecnt;
		792	}
		793
		794	static int loop_done;
		795
		796	void
695	void ev_loop (int flags)	797	ev_loop (EV_P_ int flags)
696	{	798	{
697	double block;	799	double block;
698	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	800	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
699		801
700	do	802	do
701	{	803	{
702	/* queue check watchers (and execute them) */	804	/* queue check watchers (and execute them) */
703	if (expect_false (preparecnt))	805	if (expect_false (preparecnt))
704	{	806	{
705	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	807	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
706	call_pending ();	808	call_pending (EV_A);
707	}	809	}
708		810
709	/* update fd-related kernel structures */	811	/* update fd-related kernel structures */
710	fd_reify ();	812	fd_reify (EV_A);
711		813
712	/* calculate blocking time */	814	/* calculate blocking time */
713		815
714	/* we only need this for !monotonic clockor timers, but as we basically	816	/* we only need this for !monotonic clockor timers, but as we basically
715	always have timers, we just calculate it always */	817	always have timers, we just calculate it always */
716	#if EV_USE_MONOTONIC	818	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	819	if (expect_true (have_monotonic))
718	time_update_monotonic ();	820	time_update_monotonic (EV_A);
719	else	821	else
720	#endif	822	#endif
721	{	823	{
722	ev_now = ev_time ();	824	rt_now = ev_time ();
723	now = ev_now;	825	mn_now = rt_now;
724	}	826	}
725		827
726	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	828	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
727	block = 0.;	829	block = 0.;
728	else	830	else
729	{	831	{
730	block = MAX_BLOCKTIME;	832	block = MAX_BLOCKTIME;
731		833
732	if (timercnt)	834	if (timercnt)
733	{	835	{
734	ev_tstamp to = timers [0]->at - now + method_fudge;	836	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
735	if (block > to) block = to;	837	if (block > to) block = to;
736	}	838	}
737		839
738	if (periodiccnt)	840	if (periodiccnt)
739	{	841	{
740	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	842	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
741	if (block > to) block = to;	843	if (block > to) block = to;
742	}	844	}
743		845
744	if (block < 0.) block = 0.;	846	if (block < 0.) block = 0.;
745	}	847	}
746		848
747	method_poll (block);	849	method_poll (EV_A_ block);
748		850
749	/* update ev_now, do magic */	851	/* update rt_now, do magic */
750	time_update ();	852	time_update (EV_A);
751		853
752	/* queue pending timers and reschedule them */	854	/* queue pending timers and reschedule them */
753	timers_reify (); /* relative timers called last */	855	timers_reify (EV_A); /* relative timers called last */
754	periodics_reify (); /* absolute timers called first */	856	periodics_reify (EV_A); /* absolute timers called first */
755		857
756	/* queue idle watchers unless io or timers are pending */	858	/* queue idle watchers unless io or timers are pending */
757	if (!pendingcnt)	859	if (!pendingcnt)
758	queue_events ((W *)idles, idlecnt, EV_IDLE);	860	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
759		861
760	/* queue check watchers, to be executed first */	862	/* queue check watchers, to be executed first */
761	if (checkcnt)	863	if (checkcnt)
762	queue_events ((W *)checks, checkcnt, EV_CHECK);	864	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
763		865
764	call_pending ();	866	call_pending (EV_A);
765	}	867	}
766	while (!ev_loop_done);	868	while (activecnt && !loop_done);
767		869
768	if (ev_loop_done != 2)	870	if (loop_done != 2)
769	ev_loop_done = 0;	871	loop_done = 0;
		872	}
		873
		874	void
		875	ev_unloop (EV_P_ int how)
		876	{
		877	loop_done = how;
770	}	878	}
771		879
772	/*****************************************************************************/	880	/*****************************************************************************/
773		881
774	static void	882	inline void
775	wlist_add (WL *head, WL elem)	883	wlist_add (WL *head, WL elem)
776	{	884	{
777	elem->next = *head;	885	elem->next = *head;
778	*head = elem;	886	*head = elem;
779	}	887	}
780		888
781	static void	889	inline void
782	wlist_del (WL *head, WL elem)	890	wlist_del (WL *head, WL elem)
783	{	891	{
784	while (*head)	892	while (*head)
785	{	893	{
786	if (*head == elem)	894	if (*head == elem)
…		…
791		899
792	head = &(*head)->next;	900	head = &(*head)->next;
793	}	901	}
794	}	902	}
795		903
796	static void	904	inline void
797	ev_clear_pending (W w)	905	ev_clear_pending (EV_P_ W w)
798	{	906	{
799	if (w->pending)	907	if (w->pending)
800	{	908	{
801	pendings [w->pending - 1].w = 0;	909	pendings [ABSPRI (w)][w->pending - 1].w = 0;
802	w->pending = 0;	910	w->pending = 0;
803	}	911	}
804	}	912	}
805		913
806	static void	914	inline void
807	ev_start (W w, int active)	915	ev_start (EV_P_ W w, int active)
808	{	916	{
		917	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		918	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		919
809	w->active = active;	920	w->active = active;
		921	ev_ref (EV_A);
810	}	922	}
811		923
812	static void	924	inline void
813	ev_stop (W w)	925	ev_stop (EV_P_ W w)
814	{	926	{
		927	ev_unref (EV_A);
815	w->active = 0;	928	w->active = 0;
816	}	929	}
817		930
818	/*****************************************************************************/	931	/*****************************************************************************/
819		932
820	void	933	void
821	ev_io_start (struct ev_io *w)	934	ev_io_start (EV_P_ struct ev_io *w)
822	{	935	{
823	int fd = w->fd;	936	int fd = w->fd;
824		937
825	if (ev_is_active (w))	938	if (ev_is_active (w))
826	return;	939	return;
827		940
828	assert (("ev_io_start called with negative fd", fd >= 0));	941	assert (("ev_io_start called with negative fd", fd >= 0));
829		942
830	ev_start ((W)w, 1);	943	ev_start (EV_A_ (W)w, 1);
831	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	944	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
832	wlist_add ((WL *)&anfds[fd].head, (WL)w);	945	wlist_add ((WL *)&anfds[fd].head, (WL)w);
833		946
834	fd_change (fd);	947	fd_change (EV_A_ fd);
835	}	948	}
836		949
837	void	950	void
838	ev_io_stop (struct ev_io *w)	951	ev_io_stop (EV_P_ struct ev_io *w)
839	{	952	{
840	ev_clear_pending ((W)w);	953	ev_clear_pending (EV_A_ (W)w);
841	if (!ev_is_active (w))	954	if (!ev_is_active (w))
842	return;	955	return;
843		956
844	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	957	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
845	ev_stop ((W)w);	958	ev_stop (EV_A_ (W)w);
846		959
847	fd_change (w->fd);	960	fd_change (EV_A_ w->fd);
848	}	961	}
849		962
850	void	963	void
851	ev_timer_start (struct ev_timer *w)	964	ev_timer_start (EV_P_ struct ev_timer *w)
852	{	965	{
853	if (ev_is_active (w))	966	if (ev_is_active (w))
854	return;	967	return;
855		968
856	w->at += now;	969	w->at += mn_now;
857		970
858	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	971	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
859		972
860	ev_start ((W)w, ++timercnt);	973	ev_start (EV_A_ (W)w, ++timercnt);
861	array_needsize (timers, timermax, timercnt, );	974	array_needsize (timers, timermax, timercnt, );
862	timers [timercnt - 1] = w;	975	timers [timercnt - 1] = w;
863	upheap ((WT *)timers, timercnt - 1);	976	upheap ((WT *)timers, timercnt - 1);
864	}	977	}
865		978
866	void	979	void
867	ev_timer_stop (struct ev_timer *w)	980	ev_timer_stop (EV_P_ struct ev_timer *w)
868	{	981	{
869	ev_clear_pending ((W)w);	982	ev_clear_pending (EV_A_ (W)w);
870	if (!ev_is_active (w))	983	if (!ev_is_active (w))
871	return;	984	return;
872		985
873	if (w->active < timercnt--)	986	if (w->active < timercnt--)
874	{	987	{
…		…
876	downheap ((WT *)timers, timercnt, w->active - 1);	989	downheap ((WT *)timers, timercnt, w->active - 1);
877	}	990	}
878		991
879	w->at = w->repeat;	992	w->at = w->repeat;
880		993
881	ev_stop ((W)w);	994	ev_stop (EV_A_ (W)w);
882	}	995	}
883		996
884	void	997	void
885	ev_timer_again (struct ev_timer *w)	998	ev_timer_again (EV_P_ struct ev_timer *w)
886	{	999	{
887	if (ev_is_active (w))	1000	if (ev_is_active (w))
888	{	1001	{
889	if (w->repeat)	1002	if (w->repeat)
890	{	1003	{
891	w->at = now + w->repeat;	1004	w->at = mn_now + w->repeat;
892	downheap ((WT *)timers, timercnt, w->active - 1);	1005	downheap ((WT *)timers, timercnt, w->active - 1);
893	}	1006	}
894	else	1007	else
895	ev_timer_stop (w);	1008	ev_timer_stop (EV_A_ w);
896	}	1009	}
897	else if (w->repeat)	1010	else if (w->repeat)
898	ev_timer_start (w);	1011	ev_timer_start (EV_A_ w);
899	}	1012	}
900		1013
901	void	1014	void
902	ev_periodic_start (struct ev_periodic *w)	1015	ev_periodic_start (EV_P_ struct ev_periodic *w)
903	{	1016	{
904	if (ev_is_active (w))	1017	if (ev_is_active (w))
905	return;	1018	return;
906		1019
907	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1020	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
908		1021
909	/* this formula differs from the one in periodic_reify because we do not always round up */	1022	/* this formula differs from the one in periodic_reify because we do not always round up */
910	if (w->interval)	1023	if (w->interval)
911	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1024	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
912		1025
913	ev_start ((W)w, ++periodiccnt);	1026	ev_start (EV_A_ (W)w, ++periodiccnt);
914	array_needsize (periodics, periodicmax, periodiccnt, );	1027	array_needsize (periodics, periodicmax, periodiccnt, );
915	periodics [periodiccnt - 1] = w;	1028	periodics [periodiccnt - 1] = w;
916	upheap ((WT *)periodics, periodiccnt - 1);	1029	upheap ((WT *)periodics, periodiccnt - 1);
917	}	1030	}
918		1031
919	void	1032	void
920	ev_periodic_stop (struct ev_periodic *w)	1033	ev_periodic_stop (EV_P_ struct ev_periodic *w)
921	{	1034	{
922	ev_clear_pending ((W)w);	1035	ev_clear_pending (EV_A_ (W)w);
923	if (!ev_is_active (w))	1036	if (!ev_is_active (w))
924	return;	1037	return;
925		1038
926	if (w->active < periodiccnt--)	1039	if (w->active < periodiccnt--)
927	{	1040	{
928	periodics [w->active - 1] = periodics [periodiccnt];	1041	periodics [w->active - 1] = periodics [periodiccnt];
929	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1042	downheap ((WT *)periodics, periodiccnt, w->active - 1);
930	}	1043	}
931		1044
932	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
933	}	1046	}
934		1047
		1048	#ifndef SA_RESTART
		1049	# define SA_RESTART 0
		1050	#endif
		1051
935	void	1052	void
936	ev_signal_start (struct ev_signal *w)	1053	ev_signal_start (EV_P_ struct ev_signal *w)
937	{	1054	{
938	if (ev_is_active (w))	1055	if (ev_is_active (w))
939	return;	1056	return;
940		1057
941	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1058	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
942		1059
943	ev_start ((W)w, 1);	1060	ev_start (EV_A_ (W)w, 1);
944	array_needsize (signals, signalmax, w->signum, signals_init);	1061	array_needsize (signals, signalmax, w->signum, signals_init);
945	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1062	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
946		1063
947	if (!w->next)	1064	if (!w->next)
948	{	1065	{
949	struct sigaction sa;	1066	struct sigaction sa;
950	sa.sa_handler = sighandler;	1067	sa.sa_handler = sighandler;
951	sigfillset (&sa.sa_mask);	1068	sigfillset (&sa.sa_mask);
952	sa.sa_flags = 0;	1069	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
953	sigaction (w->signum, &sa, 0);	1070	sigaction (w->signum, &sa, 0);
954	}	1071	}
955	}	1072	}
956		1073
957	void	1074	void
958	ev_signal_stop (struct ev_signal *w)	1075	ev_signal_stop (EV_P_ struct ev_signal *w)
959	{	1076	{
960	ev_clear_pending ((W)w);	1077	ev_clear_pending (EV_A_ (W)w);
961	if (!ev_is_active (w))	1078	if (!ev_is_active (w))
962	return;	1079	return;
963		1080
964	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1081	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
965	ev_stop ((W)w);	1082	ev_stop (EV_A_ (W)w);
966		1083
967	if (!signals [w->signum - 1].head)	1084	if (!signals [w->signum - 1].head)
968	signal (w->signum, SIG_DFL);	1085	signal (w->signum, SIG_DFL);
969	}	1086	}
970		1087
971	void	1088	void
972	ev_idle_start (struct ev_idle *w)	1089	ev_idle_start (EV_P_ struct ev_idle *w)
973	{	1090	{
974	if (ev_is_active (w))	1091	if (ev_is_active (w))
975	return;	1092	return;
976		1093
977	ev_start ((W)w, ++idlecnt);	1094	ev_start (EV_A_ (W)w, ++idlecnt);
978	array_needsize (idles, idlemax, idlecnt, );	1095	array_needsize (idles, idlemax, idlecnt, );
979	idles [idlecnt - 1] = w;	1096	idles [idlecnt - 1] = w;
980	}	1097	}
981		1098
982	void	1099	void
983	ev_idle_stop (struct ev_idle *w)	1100	ev_idle_stop (EV_P_ struct ev_idle *w)
984	{	1101	{
985	ev_clear_pending ((W)w);	1102	ev_clear_pending (EV_A_ (W)w);
986	if (ev_is_active (w))	1103	if (ev_is_active (w))
987	return;	1104	return;
988		1105
989	idles [w->active - 1] = idles [--idlecnt];	1106	idles [w->active - 1] = idles [--idlecnt];
990	ev_stop ((W)w);	1107	ev_stop (EV_A_ (W)w);
991	}	1108	}
992		1109
993	void	1110	void
994	ev_prepare_start (struct ev_prepare *w)	1111	ev_prepare_start (EV_P_ struct ev_prepare *w)
995	{	1112	{
996	if (ev_is_active (w))	1113	if (ev_is_active (w))
997	return;	1114	return;
998		1115
999	ev_start ((W)w, ++preparecnt);	1116	ev_start (EV_A_ (W)w, ++preparecnt);
1000	array_needsize (prepares, preparemax, preparecnt, );	1117	array_needsize (prepares, preparemax, preparecnt, );
1001	prepares [preparecnt - 1] = w;	1118	prepares [preparecnt - 1] = w;
1002	}	1119	}
1003		1120
1004	void	1121	void
1005	ev_prepare_stop (struct ev_prepare *w)	1122	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1006	{	1123	{
1007	ev_clear_pending ((W)w);	1124	ev_clear_pending (EV_A_ (W)w);
1008	if (ev_is_active (w))	1125	if (ev_is_active (w))
1009	return;	1126	return;
1010		1127
1011	prepares [w->active - 1] = prepares [--preparecnt];	1128	prepares [w->active - 1] = prepares [--preparecnt];
1012	ev_stop ((W)w);	1129	ev_stop (EV_A_ (W)w);
1013	}	1130	}
1014		1131
1015	void	1132	void
1016	ev_check_start (struct ev_check *w)	1133	ev_check_start (EV_P_ struct ev_check *w)
1017	{	1134	{
1018	if (ev_is_active (w))	1135	if (ev_is_active (w))
1019	return;	1136	return;
1020		1137
1021	ev_start ((W)w, ++checkcnt);	1138	ev_start (EV_A_ (W)w, ++checkcnt);
1022	array_needsize (checks, checkmax, checkcnt, );	1139	array_needsize (checks, checkmax, checkcnt, );
1023	checks [checkcnt - 1] = w;	1140	checks [checkcnt - 1] = w;
1024	}	1141	}
1025		1142
1026	void	1143	void
1027	ev_check_stop (struct ev_check *w)	1144	ev_check_stop (EV_P_ struct ev_check *w)
1028	{	1145	{
1029	ev_clear_pending ((W)w);	1146	ev_clear_pending (EV_A_ (W)w);
1030	if (ev_is_active (w))	1147	if (ev_is_active (w))
1031	return;	1148	return;
1032		1149
1033	checks [w->active - 1] = checks [--checkcnt];	1150	checks [w->active - 1] = checks [--checkcnt];
1034	ev_stop ((W)w);	1151	ev_stop (EV_A_ (W)w);
1035	}	1152	}
1036		1153
1037	void	1154	void
1038	ev_child_start (struct ev_child *w)	1155	ev_child_start (EV_P_ struct ev_child *w)
1039	{	1156	{
1040	if (ev_is_active (w))	1157	if (ev_is_active (w))
1041	return;	1158	return;
1042		1159
1043	ev_start ((W)w, 1);	1160	ev_start (EV_A_ (W)w, 1);
1044	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1161	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1045	}	1162	}
1046		1163
1047	void	1164	void
1048	ev_child_stop (struct ev_child *w)	1165	ev_child_stop (EV_P_ struct ev_child *w)
1049	{	1166	{
1050	ev_clear_pending ((W)w);	1167	ev_clear_pending (EV_A_ (W)w);
1051	if (ev_is_active (w))	1168	if (ev_is_active (w))
1052	return;	1169	return;
1053		1170
1054	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1171	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1055	ev_stop ((W)w);	1172	ev_stop (EV_A_ (W)w);
1056	}	1173	}
1057		1174
1058	/*****************************************************************************/	1175	/*****************************************************************************/
1059		1176
1060	struct ev_once	1177	struct ev_once
…		…
1064	void (cb)(int revents, void arg);	1181	void (cb)(int revents, void arg);
1065	void *arg;	1182	void *arg;
1066	};	1183	};
1067		1184
1068	static void	1185	static void
1069	once_cb (struct ev_once *once, int revents)	1186	once_cb (EV_P_ struct ev_once *once, int revents)
1070	{	1187	{
1071	void (cb)(int revents, void arg) = once->cb;	1188	void (cb)(int revents, void arg) = once->cb;
1072	void *arg = once->arg;	1189	void *arg = once->arg;
1073		1190
1074	ev_io_stop (&once->io);	1191	ev_io_stop (EV_A_ &once->io);
1075	ev_timer_stop (&once->to);	1192	ev_timer_stop (EV_A_ &once->to);
1076	free (once);	1193	free (once);
1077		1194
1078	cb (revents, arg);	1195	cb (revents, arg);
1079	}	1196	}
1080		1197
1081	static void	1198	static void
1082	once_cb_io (struct ev_io *w, int revents)	1199	once_cb_io (EV_P_ struct ev_io *w, int revents)
1083	{	1200	{
1084	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1201	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1085	}	1202	}
1086		1203
1087	static void	1204	static void
1088	once_cb_to (struct ev_timer *w, int revents)	1205	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1089	{	1206	{
1090	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1207	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1091	}	1208	}
1092		1209
1093	void	1210	void
1094	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1211	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1095	{	1212	{
1096	struct ev_once *once = malloc (sizeof (struct ev_once));	1213	struct ev_once *once = malloc (sizeof (struct ev_once));
1097		1214
1098	if (!once)	1215	if (!once)
1099	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1216	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1104		1221
1105	ev_watcher_init (&once->io, once_cb_io);	1222	ev_watcher_init (&once->io, once_cb_io);
1106	if (fd >= 0)	1223	if (fd >= 0)
1107	{	1224	{
1108	ev_io_set (&once->io, fd, events);	1225	ev_io_set (&once->io, fd, events);
1109	ev_io_start (&once->io);	1226	ev_io_start (EV_A_ &once->io);
1110	}	1227	}
1111		1228
1112	ev_watcher_init (&once->to, once_cb_to);	1229	ev_watcher_init (&once->to, once_cb_to);
1113	if (timeout >= 0.)	1230	if (timeout >= 0.)
1114	{	1231	{
1115	ev_timer_set (&once->to, timeout, 0.);	1232	ev_timer_set (&once->to, timeout, 0.);
1116	ev_timer_start (&once->to);	1233	ev_timer_start (EV_A_ &once->to);
1117	}	1234	}
1118	}	1235	}
1119	}	1236	}
1120		1237
1121	/*****************************************************************************/	1238	/*****************************************************************************/

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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 1.53 by root, Sat Nov 3 22:31:11 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 1.53 by root, Sat Nov 3 22:31:11 2007 UTC