[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 1.53 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
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 */
110	ev_tstamp ev_now;
111	int ev_method;
112
113	static int have_monotonic; /* runtime */
114
115	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
116	static void (*method_modify)(int fd, int oev, int nev);
117	static void (*method_poll)(ev_tstamp timeout);
118
119	/*****************************************************************************/	118	/*****************************************************************************/
120		119
121	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
122	ev_time (void)	148	ev_time (void)
123	{	149	{
124	#if EV_USE_REALTIME	150	#if EV_USE_REALTIME
125	struct timespec ts;	151	struct timespec ts;
126	clock_gettime (CLOCK_REALTIME, &ts);	152	clock_gettime (CLOCK_REALTIME, &ts);
…		…
130	gettimeofday (&tv, 0);	156	gettimeofday (&tv, 0);
131	return tv.tv_sec + tv.tv_usec * 1e-6;	157	return tv.tv_sec + tv.tv_usec * 1e-6;
132	#endif	158	#endif
133	}	159	}
134		160
135	static ev_tstamp	161	inline ev_tstamp
136	get_clock (void)	162	get_clock (void)
137	{	163	{
138	#if EV_USE_MONOTONIC	164	#if EV_USE_MONOTONIC
139	if (expect_true (have_monotonic))	165	if (expect_true (have_monotonic))
140	{	166	{
…		…
143	return ts.tv_sec + ts.tv_nsec * 1e-9;	169	return ts.tv_sec + ts.tv_nsec * 1e-9;
144	}	170	}
145	#endif	171	#endif
146		172
147	return ev_time ();	173	return ev_time ();
		174	}
		175
		176	ev_tstamp
		177	ev_now (EV_P)
		178	{
		179	return rt_now;
148	}	180	}
149		181
150	#define array_roundsize(base,n) ((n) \| 4 & ~3)	182	#define array_roundsize(base,n) ((n) \| 4 & ~3)
151		183
152	#define array_needsize(base,cur,cnt,init) \	184	#define array_needsize(base,cur,cnt,init) \
…		…
164	cur = newcnt; \	196	cur = newcnt; \
165	}	197	}
166		198
167	/*****************************************************************************/	199	/*****************************************************************************/
168		200
169	typedef struct
170	{
171	struct ev_io *head;
172	unsigned char events;
173	unsigned char reify;
174	} ANFD;
175
176	static ANFD *anfds;
177	static int anfdmax;
178
179	static void	201	static void
180	anfds_init (ANFD *base, int count)	202	anfds_init (ANFD *base, int count)
181	{	203	{
182	while (count--)	204	while (count--)
183	{	205	{
…		…
187		209
188	++base;	210	++base;
189	}	211	}
190	}	212	}
191		213
192	typedef struct
193	{
194	W w;
195	int events;
196	} ANPENDING;
197
198	static ANPENDING *pendings;
199	static int pendingmax, pendingcnt;
200
201	static void	214	static void
202	event (W w, int events)	215	event (EV_P_ W w, int events)
203	{	216	{
204	if (w->pending)	217	if (w->pending)
205	{	218	{
206	pendings [w->pending - 1].events \|= events;	219	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
207	return;	220	return;
208	}	221	}
209		222
210	w->pending = ++pendingcnt;	223	w->pending = ++pendingcnt [ABSPRI (w)];
211	array_needsize (pendings, pendingmax, pendingcnt, );	224	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );
212	pendings [pendingcnt - 1].w = w;	225	pendings [ABSPRI (w)][w->pending - 1].w = w;
213	pendings [pendingcnt - 1].events = events;	226	pendings [ABSPRI (w)][w->pending - 1].events = events;
214	}	227	}
215		228
216	static void	229	static void
217	queue_events (W *events, int eventcnt, int type)	230	queue_events (EV_P_ W *events, int eventcnt, int type)
218	{	231	{
219	int i;	232	int i;
220		233
221	for (i = 0; i < eventcnt; ++i)	234	for (i = 0; i < eventcnt; ++i)
222	event (events [i], type);	235	event (EV_A_ events [i], type);
223	}	236	}
224		237
225	static void	238	static void
226	fd_event (int fd, int events)	239	fd_event (EV_P_ int fd, int events)
227	{	240	{
228	ANFD *anfd = anfds + fd;	241	ANFD *anfd = anfds + fd;
229	struct ev_io *w;	242	struct ev_io *w;
230		243
231	for (w = anfd->head; w; w = w->next)	244	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
232	{	245	{
233	int ev = w->events & events;	246	int ev = w->events & events;
234		247
235	if (ev)	248	if (ev)
236	event ((W)w, ev);	249	event (EV_A_ (W)w, ev);
237	}	250	}
238	}	251	}
239		252
240	/*****************************************************************************/	253	/*****************************************************************************/
241		254
242	static int *fdchanges;
243	static int fdchangemax, fdchangecnt;
244
245	static void	255	static void
246	fd_reify (void)	256	fd_reify (EV_P)
247	{	257	{
248	int i;	258	int i;
249		259
250	for (i = 0; i < fdchangecnt; ++i)	260	for (i = 0; i < fdchangecnt; ++i)
251	{	261	{
…		…
253	ANFD *anfd = anfds + fd;	263	ANFD *anfd = anfds + fd;
254	struct ev_io *w;	264	struct ev_io *w;
255		265
256	int events = 0;	266	int events = 0;
257		267
258	for (w = anfd->head; w; w = w->next)	268	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
259	events \|= w->events;	269	events \|= w->events;
260		270
261	anfd->reify = 0;	271	anfd->reify = 0;
262		272
263	if (anfd->events != events)	273	if (anfd->events != events)
264	{	274	{
265	method_modify (fd, anfd->events, events);	275	method_modify (EV_A_ fd, anfd->events, events);
266	anfd->events = events;	276	anfd->events = events;
267	}	277	}
268	}	278	}
269		279
270	fdchangecnt = 0;	280	fdchangecnt = 0;
271	}	281	}
272		282
273	static void	283	static void
274	fd_change (int fd)	284	fd_change (EV_P_ int fd)
275	{	285	{
276	if (anfds [fd].reify \|\| fdchangecnt < 0)	286	if (anfds [fd].reify \|\| fdchangecnt < 0)
277	return;	287	return;
278		288
279	anfds [fd].reify = 1;	289	anfds [fd].reify = 1;
…		…
282	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	292	array_needsize (fdchanges, fdchangemax, fdchangecnt, );
283	fdchanges [fdchangecnt - 1] = fd;	293	fdchanges [fdchangecnt - 1] = fd;
284	}	294	}
285		295
286	static void	296	static void
287	fd_kill (int fd)	297	fd_kill (EV_P_ int fd)
288	{	298	{
289	struct ev_io *w;	299	struct ev_io *w;
290		300
291	printf ("killing fd %d\n", fd);//D
292	while ((w = anfds [fd].head))	301	while ((w = (struct ev_io *)anfds [fd].head))
293	{	302	{
294	ev_io_stop (w);	303	ev_io_stop (EV_A_ w);
295	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	304	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
296	}	305	}
297	}	306	}
298		307
299	/* called on EBADF to verify fds */	308	/* called on EBADF to verify fds */
300	static void	309	static void
301	fd_ebadf (void)	310	fd_ebadf (EV_P)
302	{	311	{
303	int fd;	312	int fd;
304		313
305	for (fd = 0; fd < anfdmax; ++fd)	314	for (fd = 0; fd < anfdmax; ++fd)
306	if (anfds [fd].events)	315	if (anfds [fd].events)
307	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)
308	fd_kill (fd);	317	fd_kill (EV_A_ fd);
309	}	318	}
310		319
311	/* called on ENOMEM in select/poll to kill some fds and retry */	320	/* called on ENOMEM in select/poll to kill some fds and retry */
312	static void	321	static void
313	fd_enomem (void)	322	fd_enomem (EV_P)
314	{	323	{
315	int fd = anfdmax;	324	int fd = anfdmax;
316		325
317	while (fd--)	326	while (fd--)
318	if (anfds [fd].events)	327	if (anfds [fd].events)
319	{	328	{
320	close (fd);	329	close (fd);
321	fd_kill (fd);	330	fd_kill (EV_A_ fd);
322	return;	331	return;
323	}	332	}
324	}	333	}
325		334
326	/*****************************************************************************/	335	/*****************************************************************************/
327
328	static struct ev_timer **timers;
329	static int timermax, timercnt;
330
331	static struct ev_periodic **periodics;
332	static int periodicmax, periodiccnt;
333		336
334	static void	337	static void
335	upheap (WT *timers, int k)	338	upheap (WT *timers, int k)
336	{	339	{
337	WT w = timers [k];	340	WT w = timers [k];
…		…
374		377
375	/*****************************************************************************/	378	/*****************************************************************************/
376		379
377	typedef struct	380	typedef struct
378	{	381	{
379	struct ev_signal *head;	382	struct ev_watcher_list *head;
380	sig_atomic_t volatile gotsig;	383	sig_atomic_t volatile gotsig;
381	} ANSIG;	384	} ANSIG;
382		385
383	static ANSIG *signals;	386	static ANSIG *signals;
384	static int signalmax;	387	static int signalmax;
385		388
386	static int sigpipe [2];	389	static int sigpipe [2];
387	static sig_atomic_t volatile gotsig;	390	static sig_atomic_t volatile gotsig;
388	static struct ev_io sigev;
389		391
390	static void	392	static void
391	signals_init (ANSIG *base, int count)	393	signals_init (ANSIG *base, int count)
392	{	394	{
393	while (count--)	395	while (count--)
…		…
404	{	406	{
405	signals [signum - 1].gotsig = 1;	407	signals [signum - 1].gotsig = 1;
406		408
407	if (!gotsig)	409	if (!gotsig)
408	{	410	{
		411	int old_errno = errno;
409	gotsig = 1;	412	gotsig = 1;
410	write (sigpipe [1], &signum, 1);	413	write (sigpipe [1], &signum, 1);
		414	errno = old_errno;
411	}	415	}
412	}	416	}
413		417
414	static void	418	static void
415	sigcb (struct ev_io *iow, int revents)	419	sigcb (EV_P_ struct ev_io *iow, int revents)
416	{	420	{
417	struct ev_signal *w;	421	struct ev_watcher_list *w;
418	int signum;	422	int signum;
419		423
420	read (sigpipe [0], &revents, 1);	424	read (sigpipe [0], &revents, 1);
421	gotsig = 0;	425	gotsig = 0;
422		426
…		…
424	if (signals [signum].gotsig)	428	if (signals [signum].gotsig)
425	{	429	{
426	signals [signum].gotsig = 0;	430	signals [signum].gotsig = 0;
427		431
428	for (w = signals [signum].head; w; w = w->next)	432	for (w = signals [signum].head; w; w = w->next)
429	event ((W)w, EV_SIGNAL);	433	event (EV_A_ (W)w, EV_SIGNAL);
430	}	434	}
431	}	435	}
432		436
433	static void	437	static void
434	siginit (void)	438	siginit (EV_P)
435	{	439	{
		440	#ifndef WIN32
436	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	441	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
437	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	442	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
438		443
439	/* rather than sort out wether we really need nb, set it */	444	/* rather than sort out wether we really need nb, set it */
440	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	445	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
441	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	446	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		447	#endif
442		448
443	ev_io_set (&sigev, sigpipe [0], EV_READ);	449	ev_io_set (&sigev, sigpipe [0], EV_READ);
444	ev_io_start (&sigev);	450	ev_io_start (&sigev);
		451	ev_unref (EV_A); /* child watcher should not keep loop alive */
445	}	452	}
446		453
447	/*****************************************************************************/	454	/*****************************************************************************/
448		455
449	static struct ev_idle **idles;	456	#ifndef WIN32
450	static int idlemax, idlecnt;
451
452	static struct ev_prepare **prepares;
453	static int preparemax, preparecnt;
454
455	static struct ev_check **checks;
456	static int checkmax, checkcnt;
457
458	/*****************************************************************************/
459
460	static struct ev_child *childs [PID_HASHSIZE];
461	static struct ev_signal childev;
462		457
463	#ifndef WCONTINUED	458	#ifndef WCONTINUED
464	# define WCONTINUED 0	459	# define WCONTINUED 0
465	#endif	460	#endif
466		461
467	static void	462	static void
468	childcb (struct ev_signal *sw, int revents)	463	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
469	{	464	{
470	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	{
471	int pid, status;	480	int pid, status;
472		481
473	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	482	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
474	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	483	{
475	if (w->pid == pid \|\| !w->pid)	484	/* make sure we are called again until all childs have been reaped */
476	{	485	event (EV_A_ (W)sw, EV_SIGNAL);
477	w->status = status;	486
478	event ((W)w, EV_CHILD);	487	child_reap (EV_A_ sw, pid, pid, status);
479	}	488	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		489	}
480	}	490	}
		491
		492	#endif
481		493
482	/*****************************************************************************/	494	/*****************************************************************************/
483		495
		496	#if EV_USE_KQUEUE
		497	# include "ev_kqueue.c"
		498	#endif
484	#if EV_USE_EPOLL	499	#if EV_USE_EPOLL
485	# include "ev_epoll.c"	500	# include "ev_epoll.c"
486	#endif	501	#endif
487	#if EV_USE_POLL	502	#if EV_USEV_POLL
488	# include "ev_poll.c"	503	# include "ev_poll.c"
489	#endif	504	#endif
490	#if EV_USE_SELECT	505	#if EV_USE_SELECT
491	# include "ev_select.c"	506	# include "ev_select.c"
492	#endif	507	#endif
…		…
501	ev_version_minor (void)	516	ev_version_minor (void)
502	{	517	{
503	return EV_VERSION_MINOR;	518	return EV_VERSION_MINOR;
504	}	519	}
505		520
506	/* return true if we are running with elevated privileges and ignore env variables */	521	/* return true if we are running with elevated privileges and should ignore env variables */
507	static int	522	static int
508	enable_secure ()	523	enable_secure (void)
509	{	524	{
		525	#ifdef WIN32
		526	return 0;
		527	#else
510	return getuid () != geteuid ()	528	return getuid () != geteuid ()
511	\|\| getgid () != getegid ();	529	\|\| getgid () != getegid ();
		530	#endif
512	}	531	}
513		532
		533	int
		534	ev_method (EV_P)
		535	{
		536	return method;
		537	}
		538
		539	int
514	int ev_init (int methods)	540	ev_init (EV_P_ int methods)
515	{	541	{
		542	#ifdef EV_MULTIPLICITY
		543	memset (loop, 0, sizeof (struct ev_loop));
		544	#endif
		545
516	if (!ev_method)	546	if (!method)
517	{	547	{
518	#if EV_USE_MONOTONIC	548	#if EV_USE_MONOTONIC
519	{	549	{
520	struct timespec ts;	550	struct timespec ts;
521	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	551	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
522	have_monotonic = 1;	552	have_monotonic = 1;
523	}	553	}
524	#endif	554	#endif
525		555
526	ev_now = ev_time ();	556	rt_now = ev_time ();
527	now = get_clock ();	557	mn_now = get_clock ();
528	now_floor = now;	558	now_floor = mn_now;
529	diff = ev_now - now;	559	diff = rt_now - mn_now;
530		560
531	if (pipe (sigpipe))	561	if (pipe (sigpipe))
532	return 0;	562	return 0;
533		563
534	if (methods == EVMETHOD_AUTO)	564	if (methods == EVMETHOD_AUTO)
535	if (!enable_secure () && getenv ("LIBEV_METHODS"))	565	if (!enable_secure () && getenv ("LIBmethodS"))
536	methods = atoi (getenv ("LIBEV_METHODS"));	566	methods = atoi (getenv ("LIBmethodS"));
537	else	567	else
538	methods = EVMETHOD_ANY;	568	methods = EVMETHOD_ANY;
539		569
540	ev_method = 0;	570	method = 0;
		571	#if EV_USE_KQUEUE
		572	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		573	#endif
541	#if EV_USE_EPOLL	574	#if EV_USE_EPOLL
542	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	575	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
543	#endif	576	#endif
544	#if EV_USE_POLL	577	#if EV_USEV_POLL
545	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	578	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
546	#endif	579	#endif
547	#if EV_USE_SELECT	580	#if EV_USE_SELECT
548	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	581	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
549	#endif	582	#endif
550		583
551	if (ev_method)	584	if (method)
552	{	585	{
553	ev_watcher_init (&sigev, sigcb);	586	ev_watcher_init (&sigev, sigcb);
		587	ev_set_priority (&sigev, EV_MAXPRI);
554	siginit ();	588	siginit (EV_A);
555		589
		590	#ifndef WIN32
556	ev_signal_init (&childev, childcb, SIGCHLD);	591	ev_signal_init (&childev, childcb, SIGCHLD);
		592	ev_set_priority (&childev, EV_MAXPRI);
557	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
558	}	596	}
559	}	597	}
560		598
561	return ev_method;	599	return method;
562	}	600	}
563		601
564	/*****************************************************************************/	602	/*****************************************************************************/
565		603
566	void	604	void
…		…
577		615
578	void	616	void
579	ev_fork_child (void)	617	ev_fork_child (void)
580	{	618	{
581	#if EV_USE_EPOLL	619	#if EV_USE_EPOLL
582	if (ev_method == EVMETHOD_EPOLL)	620	if (method == EVMETHOD_EPOLL)
583	epoll_postfork_child ();	621	epoll_postfork_child ();
584	#endif	622	#endif
585		623
586	ev_io_stop (&sigev);	624	ev_io_stop (&sigev);
587	close (sigpipe [0]);	625	close (sigpipe [0]);
…		…
591	}	629	}
592		630
593	/*****************************************************************************/	631	/*****************************************************************************/
594		632
595	static void	633	static void
596	call_pending (void)	634	call_pending (EV_P)
597	{	635	{
		636	int pri;
		637
		638	for (pri = NUMPRI; pri--; )
598	while (pendingcnt)	639	while (pendingcnt [pri])
599	{	640	{
600	ANPENDING *p = pendings + --pendingcnt;	641	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
601		642
602	if (p->w)	643	if (p->w)
603	{	644	{
604	p->w->pending = 0;	645	p->w->pending = 0;
605	p->w->cb (p->w, p->events);	646	p->w->cb (EV_A_ p->w, p->events);
606	}	647	}
607	}	648	}
608	}	649	}
609		650
610	static void	651	static void
611	timers_reify (void)	652	timers_reify (EV_P)
612	{	653	{
613	while (timercnt && timers [0]->at <= now)	654	while (timercnt && timers [0]->at <= mn_now)
614	{	655	{
615	struct ev_timer *w = timers [0];	656	struct ev_timer *w = timers [0];
616		657
617	/* first reschedule or stop timer */	658	/* first reschedule or stop timer */
618	if (w->repeat)	659	if (w->repeat)
619	{	660	{
620	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.));
621	w->at = now + w->repeat;	662	w->at = mn_now + w->repeat;
622	downheap ((WT *)timers, timercnt, 0);	663	downheap ((WT *)timers, timercnt, 0);
623	}	664	}
624	else	665	else
625	ev_timer_stop (w); /* nonrepeating: stop timer */	666	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
626		667
627	event ((W)w, EV_TIMEOUT);	668	event ((W)w, EV_TIMEOUT);
628	}	669	}
629	}	670	}
630		671
631	static void	672	static void
632	periodics_reify (void)	673	periodics_reify (EV_P)
633	{	674	{
634	while (periodiccnt && periodics [0]->at <= ev_now)	675	while (periodiccnt && periodics [0]->at <= rt_now)
635	{	676	{
636	struct ev_periodic *w = periodics [0];	677	struct ev_periodic *w = periodics [0];
637		678
638	/* first reschedule or stop timer */	679	/* first reschedule or stop timer */
639	if (w->interval)	680	if (w->interval)
640	{	681	{
641	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;
642	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));
643	downheap ((WT *)periodics, periodiccnt, 0);	684	downheap ((WT *)periodics, periodiccnt, 0);
644	}	685	}
645	else	686	else
646	ev_periodic_stop (w); /* nonrepeating: stop timer */	687	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
647		688
648	event ((W)w, EV_PERIODIC);	689	event (EV_A_ (W)w, EV_PERIODIC);
649	}	690	}
650	}	691	}
651		692
652	static void	693	static void
653	periodics_reschedule (ev_tstamp diff)	694	periodics_reschedule (EV_P_ ev_tstamp diff)
654	{	695	{
655	int i;	696	int i;
656		697
657	/* adjust periodics after time jump */	698	/* adjust periodics after time jump */
658	for (i = 0; i < periodiccnt; ++i)	699	for (i = 0; i < periodiccnt; ++i)
659	{	700	{
660	struct ev_periodic *w = periodics [i];	701	struct ev_periodic *w = periodics [i];
661		702
662	if (w->interval)	703	if (w->interval)
663	{	704	{
664	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;
665		706
666	if (fabs (diff) >= 1e-4)	707	if (fabs (diff) >= 1e-4)
667	{	708	{
668	ev_periodic_stop (w);	709	ev_periodic_stop (EV_A_ w);
669	ev_periodic_start (w);	710	ev_periodic_start (EV_A_ w);
670		711
671	i = 0; /* restart loop, inefficient, but time jumps should be rare */	712	i = 0; /* restart loop, inefficient, but time jumps should be rare */
672	}	713	}
673	}	714	}
674	}	715	}
675	}	716	}
676		717
677	static int	718	inline int
678	time_update_monotonic (void)	719	time_update_monotonic (EV_P)
679	{	720	{
680	now = get_clock ();	721	mn_now = get_clock ();
681		722
682	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	723	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
683	{	724	{
684	ev_now = now + diff;	725	rt_now = mn_now + diff;
685	return 0;	726	return 0;
686	}	727	}
687	else	728	else
688	{	729	{
689	now_floor = now;	730	now_floor = mn_now;
690	ev_now = ev_time ();	731	rt_now = ev_time ();
691	return 1;	732	return 1;
692	}	733	}
693	}	734	}
694		735
695	static void	736	static void
696	time_update (void)	737	time_update (EV_P)
697	{	738	{
698	int i;	739	int i;
699		740
700	#if EV_USE_MONOTONIC	741	#if EV_USE_MONOTONIC
701	if (expect_true (have_monotonic))	742	if (expect_true (have_monotonic))
702	{	743	{
703	if (time_update_monotonic ())	744	if (time_update_monotonic (EV_A))
704	{	745	{
705	ev_tstamp odiff = diff;	746	ev_tstamp odiff = diff;
706		747
707	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 */
708	{	749	{
709	diff = ev_now - now;	750	diff = rt_now - mn_now;
710		751
711	if (fabs (odiff - diff) < MIN_TIMEJUMP)	752	if (fabs (odiff - diff) < MIN_TIMEJUMP)
712	return; /* all is well */	753	return; /* all is well */
713		754
714	ev_now = ev_time ();	755	rt_now = ev_time ();
715	now = get_clock ();	756	mn_now = get_clock ();
716	now_floor = now;	757	now_floor = mn_now;
717	}	758	}
718		759
719	periodics_reschedule (diff - odiff);	760	periodics_reschedule (EV_A_ diff - odiff);
720	/* no timer adjustment, as the monotonic clock doesn't jump */	761	/* no timer adjustment, as the monotonic clock doesn't jump */
721	}	762	}
722	}	763	}
723	else	764	else
724	#endif	765	#endif
725	{	766	{
726	ev_now = ev_time ();	767	rt_now = ev_time ();
727		768
728	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))
729	{	770	{
730	periodics_reschedule (ev_now - now);	771	periodics_reschedule (EV_A_ rt_now - mn_now);
731		772
732	/* 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 */
733	for (i = 0; i < timercnt; ++i)	774	for (i = 0; i < timercnt; ++i)
734	timers [i]->at += diff;	775	timers [i]->at += diff;
735	}	776	}
736		777
737	now = ev_now;	778	mn_now = rt_now;
738	}	779	}
739	}	780	}
740		781
741	int ev_loop_done;	782	void
		783	ev_ref (EV_P)
		784	{
		785	++activecnt;
		786	}
742		787
		788	void
		789	ev_unref (EV_P)
		790	{
		791	--activecnt;
		792	}
		793
		794	static int loop_done;
		795
		796	void
743	void ev_loop (int flags)	797	ev_loop (EV_P_ int flags)
744	{	798	{
745	double block;	799	double block;
746	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	800	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
747		801
748	do	802	do
749	{	803	{
750	/* queue check watchers (and execute them) */	804	/* queue check watchers (and execute them) */
751	if (expect_false (preparecnt))	805	if (expect_false (preparecnt))
752	{	806	{
753	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	807	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
754	call_pending ();	808	call_pending (EV_A);
755	}	809	}
756		810
757	/* update fd-related kernel structures */	811	/* update fd-related kernel structures */
758	fd_reify ();	812	fd_reify (EV_A);
759		813
760	/* calculate blocking time */	814	/* calculate blocking time */
761		815
762	/* 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
763	always have timers, we just calculate it always */	817	always have timers, we just calculate it always */
764	#if EV_USE_MONOTONIC	818	#if EV_USE_MONOTONIC
765	if (expect_true (have_monotonic))	819	if (expect_true (have_monotonic))
766	time_update_monotonic ();	820	time_update_monotonic (EV_A);
767	else	821	else
768	#endif	822	#endif
769	{	823	{
770	ev_now = ev_time ();	824	rt_now = ev_time ();
771	now = ev_now;	825	mn_now = rt_now;
772	}	826	}
773		827
774	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	828	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
775	block = 0.;	829	block = 0.;
776	else	830	else
777	{	831	{
778	block = MAX_BLOCKTIME;	832	block = MAX_BLOCKTIME;
779		833
780	if (timercnt)	834	if (timercnt)
781	{	835	{
782	ev_tstamp to = timers [0]->at - now + method_fudge;	836	ev_tstamp to = timers [0]->at - mn_now + method_fudge;
783	if (block > to) block = to;	837	if (block > to) block = to;
784	}	838	}
785		839
786	if (periodiccnt)	840	if (periodiccnt)
787	{	841	{
788	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	842	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;
789	if (block > to) block = to;	843	if (block > to) block = to;
790	}	844	}
791		845
792	if (block < 0.) block = 0.;	846	if (block < 0.) block = 0.;
793	}	847	}
794		848
795	method_poll (block);	849	method_poll (EV_A_ block);
796		850
797	/* update ev_now, do magic */	851	/* update rt_now, do magic */
798	time_update ();	852	time_update (EV_A);
799		853
800	/* queue pending timers and reschedule them */	854	/* queue pending timers and reschedule them */
801	timers_reify (); /* relative timers called last */	855	timers_reify (EV_A); /* relative timers called last */
802	periodics_reify (); /* absolute timers called first */	856	periodics_reify (EV_A); /* absolute timers called first */
803		857
804	/* queue idle watchers unless io or timers are pending */	858	/* queue idle watchers unless io or timers are pending */
805	if (!pendingcnt)	859	if (!pendingcnt)
806	queue_events ((W *)idles, idlecnt, EV_IDLE);	860	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
807		861
808	/* queue check watchers, to be executed first */	862	/* queue check watchers, to be executed first */
809	if (checkcnt)	863	if (checkcnt)
810	queue_events ((W *)checks, checkcnt, EV_CHECK);	864	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
811		865
812	call_pending ();	866	call_pending (EV_A);
813	}	867	}
814	while (!ev_loop_done);	868	while (activecnt && !loop_done);
815		869
816	if (ev_loop_done != 2)	870	if (loop_done != 2)
817	ev_loop_done = 0;	871	loop_done = 0;
		872	}
		873
		874	void
		875	ev_unloop (EV_P_ int how)
		876	{
		877	loop_done = how;
818	}	878	}
819		879
820	/*****************************************************************************/	880	/*****************************************************************************/
821		881
822	static void	882	inline void
823	wlist_add (WL *head, WL elem)	883	wlist_add (WL *head, WL elem)
824	{	884	{
825	elem->next = *head;	885	elem->next = *head;
826	*head = elem;	886	*head = elem;
827	}	887	}
828		888
829	static void	889	inline void
830	wlist_del (WL *head, WL elem)	890	wlist_del (WL *head, WL elem)
831	{	891	{
832	while (*head)	892	while (*head)
833	{	893	{
834	if (*head == elem)	894	if (*head == elem)
…		…
839		899
840	head = &(*head)->next;	900	head = &(*head)->next;
841	}	901	}
842	}	902	}
843		903
844	static void	904	inline void
845	ev_clear_pending (W w)	905	ev_clear_pending (EV_P_ W w)
846	{	906	{
847	if (w->pending)	907	if (w->pending)
848	{	908	{
849	pendings [w->pending - 1].w = 0;	909	pendings [ABSPRI (w)][w->pending - 1].w = 0;
850	w->pending = 0;	910	w->pending = 0;
851	}	911	}
852	}	912	}
853		913
854	static void	914	inline void
855	ev_start (W w, int active)	915	ev_start (EV_P_ W w, int active)
856	{	916	{
		917	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		918	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		919
857	w->active = active;	920	w->active = active;
		921	ev_ref (EV_A);
858	}	922	}
859		923
860	static void	924	inline void
861	ev_stop (W w)	925	ev_stop (EV_P_ W w)
862	{	926	{
		927	ev_unref (EV_A);
863	w->active = 0;	928	w->active = 0;
864	}	929	}
865		930
866	/*****************************************************************************/	931	/*****************************************************************************/
867		932
868	void	933	void
869	ev_io_start (struct ev_io *w)	934	ev_io_start (EV_P_ struct ev_io *w)
870	{	935	{
871	int fd = w->fd;	936	int fd = w->fd;
872		937
873	if (ev_is_active (w))	938	if (ev_is_active (w))
874	return;	939	return;
875		940
876	assert (("ev_io_start called with negative fd", fd >= 0));	941	assert (("ev_io_start called with negative fd", fd >= 0));
877		942
878	ev_start ((W)w, 1);	943	ev_start (EV_A_ (W)w, 1);
879	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	944	array_needsize (anfds, anfdmax, fd + 1, anfds_init);
880	wlist_add ((WL *)&anfds[fd].head, (WL)w);	945	wlist_add ((WL *)&anfds[fd].head, (WL)w);
881		946
882	fd_change (fd);	947	fd_change (EV_A_ fd);
883	}	948	}
884		949
885	void	950	void
886	ev_io_stop (struct ev_io *w)	951	ev_io_stop (EV_P_ struct ev_io *w)
887	{	952	{
888	ev_clear_pending ((W)w);	953	ev_clear_pending (EV_A_ (W)w);
889	if (!ev_is_active (w))	954	if (!ev_is_active (w))
890	return;	955	return;
891		956
892	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	957	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
893	ev_stop ((W)w);	958	ev_stop (EV_A_ (W)w);
894		959
895	fd_change (w->fd);	960	fd_change (EV_A_ w->fd);
896	}	961	}
897		962
898	void	963	void
899	ev_timer_start (struct ev_timer *w)	964	ev_timer_start (EV_P_ struct ev_timer *w)
900	{	965	{
901	if (ev_is_active (w))	966	if (ev_is_active (w))
902	return;	967	return;
903		968
904	w->at += now;	969	w->at += mn_now;
905		970
906	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.));
907		972
908	ev_start ((W)w, ++timercnt);	973	ev_start (EV_A_ (W)w, ++timercnt);
909	array_needsize (timers, timermax, timercnt, );	974	array_needsize (timers, timermax, timercnt, );
910	timers [timercnt - 1] = w;	975	timers [timercnt - 1] = w;
911	upheap ((WT *)timers, timercnt - 1);	976	upheap ((WT *)timers, timercnt - 1);
912	}	977	}
913		978
914	void	979	void
915	ev_timer_stop (struct ev_timer *w)	980	ev_timer_stop (EV_P_ struct ev_timer *w)
916	{	981	{
917	ev_clear_pending ((W)w);	982	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	983	if (!ev_is_active (w))
919	return;	984	return;
920		985
921	if (w->active < timercnt--)	986	if (w->active < timercnt--)
922	{	987	{
…		…
924	downheap ((WT *)timers, timercnt, w->active - 1);	989	downheap ((WT *)timers, timercnt, w->active - 1);
925	}	990	}
926		991
927	w->at = w->repeat;	992	w->at = w->repeat;
928		993
929	ev_stop ((W)w);	994	ev_stop (EV_A_ (W)w);
930	}	995	}
931		996
932	void	997	void
933	ev_timer_again (struct ev_timer *w)	998	ev_timer_again (EV_P_ struct ev_timer *w)
934	{	999	{
935	if (ev_is_active (w))	1000	if (ev_is_active (w))
936	{	1001	{
937	if (w->repeat)	1002	if (w->repeat)
938	{	1003	{
939	w->at = now + w->repeat;	1004	w->at = mn_now + w->repeat;
940	downheap ((WT *)timers, timercnt, w->active - 1);	1005	downheap ((WT *)timers, timercnt, w->active - 1);
941	}	1006	}
942	else	1007	else
943	ev_timer_stop (w);	1008	ev_timer_stop (EV_A_ w);
944	}	1009	}
945	else if (w->repeat)	1010	else if (w->repeat)
946	ev_timer_start (w);	1011	ev_timer_start (EV_A_ w);
947	}	1012	}
948		1013
949	void	1014	void
950	ev_periodic_start (struct ev_periodic *w)	1015	ev_periodic_start (EV_P_ struct ev_periodic *w)
951	{	1016	{
952	if (ev_is_active (w))	1017	if (ev_is_active (w))
953	return;	1018	return;
954		1019
955	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.));
956		1021
957	/* 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 */
958	if (w->interval)	1023	if (w->interval)
959	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1024	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;
960		1025
961	ev_start ((W)w, ++periodiccnt);	1026	ev_start (EV_A_ (W)w, ++periodiccnt);
962	array_needsize (periodics, periodicmax, periodiccnt, );	1027	array_needsize (periodics, periodicmax, periodiccnt, );
963	periodics [periodiccnt - 1] = w;	1028	periodics [periodiccnt - 1] = w;
964	upheap ((WT *)periodics, periodiccnt - 1);	1029	upheap ((WT *)periodics, periodiccnt - 1);
965	}	1030	}
966		1031
967	void	1032	void
968	ev_periodic_stop (struct ev_periodic *w)	1033	ev_periodic_stop (EV_P_ struct ev_periodic *w)
969	{	1034	{
970	ev_clear_pending ((W)w);	1035	ev_clear_pending (EV_A_ (W)w);
971	if (!ev_is_active (w))	1036	if (!ev_is_active (w))
972	return;	1037	return;
973		1038
974	if (w->active < periodiccnt--)	1039	if (w->active < periodiccnt--)
975	{	1040	{
976	periodics [w->active - 1] = periodics [periodiccnt];	1041	periodics [w->active - 1] = periodics [periodiccnt];
977	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1042	downheap ((WT *)periodics, periodiccnt, w->active - 1);
978	}	1043	}
979		1044
980	ev_stop ((W)w);	1045	ev_stop (EV_A_ (W)w);
981	}	1046	}
982		1047
		1048	#ifndef SA_RESTART
		1049	# define SA_RESTART 0
		1050	#endif
		1051
983	void	1052	void
984	ev_signal_start (struct ev_signal *w)	1053	ev_signal_start (EV_P_ struct ev_signal *w)
985	{	1054	{
986	if (ev_is_active (w))	1055	if (ev_is_active (w))
987	return;	1056	return;
988		1057
989	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));
990		1059
991	ev_start ((W)w, 1);	1060	ev_start (EV_A_ (W)w, 1);
992	array_needsize (signals, signalmax, w->signum, signals_init);	1061	array_needsize (signals, signalmax, w->signum, signals_init);
993	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1062	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
994		1063
995	if (!w->next)	1064	if (!w->next)
996	{	1065	{
997	struct sigaction sa;	1066	struct sigaction sa;
998	sa.sa_handler = sighandler;	1067	sa.sa_handler = sighandler;
999	sigfillset (&sa.sa_mask);	1068	sigfillset (&sa.sa_mask);
1000	sa.sa_flags = 0;	1069	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1001	sigaction (w->signum, &sa, 0);	1070	sigaction (w->signum, &sa, 0);
1002	}	1071	}
1003	}	1072	}
1004		1073
1005	void	1074	void
1006	ev_signal_stop (struct ev_signal *w)	1075	ev_signal_stop (EV_P_ struct ev_signal *w)
1007	{	1076	{
1008	ev_clear_pending ((W)w);	1077	ev_clear_pending (EV_A_ (W)w);
1009	if (!ev_is_active (w))	1078	if (!ev_is_active (w))
1010	return;	1079	return;
1011		1080
1012	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1081	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1013	ev_stop ((W)w);	1082	ev_stop (EV_A_ (W)w);
1014		1083
1015	if (!signals [w->signum - 1].head)	1084	if (!signals [w->signum - 1].head)
1016	signal (w->signum, SIG_DFL);	1085	signal (w->signum, SIG_DFL);
1017	}	1086	}
1018		1087
1019	void	1088	void
1020	ev_idle_start (struct ev_idle *w)	1089	ev_idle_start (EV_P_ struct ev_idle *w)
1021	{	1090	{
1022	if (ev_is_active (w))	1091	if (ev_is_active (w))
1023	return;	1092	return;
1024		1093
1025	ev_start ((W)w, ++idlecnt);	1094	ev_start (EV_A_ (W)w, ++idlecnt);
1026	array_needsize (idles, idlemax, idlecnt, );	1095	array_needsize (idles, idlemax, idlecnt, );
1027	idles [idlecnt - 1] = w;	1096	idles [idlecnt - 1] = w;
1028	}	1097	}
1029		1098
1030	void	1099	void
1031	ev_idle_stop (struct ev_idle *w)	1100	ev_idle_stop (EV_P_ struct ev_idle *w)
1032	{	1101	{
1033	ev_clear_pending ((W)w);	1102	ev_clear_pending (EV_A_ (W)w);
1034	if (ev_is_active (w))	1103	if (ev_is_active (w))
1035	return;	1104	return;
1036		1105
1037	idles [w->active - 1] = idles [--idlecnt];	1106	idles [w->active - 1] = idles [--idlecnt];
1038	ev_stop ((W)w);	1107	ev_stop (EV_A_ (W)w);
1039	}	1108	}
1040		1109
1041	void	1110	void
1042	ev_prepare_start (struct ev_prepare *w)	1111	ev_prepare_start (EV_P_ struct ev_prepare *w)
1043	{	1112	{
1044	if (ev_is_active (w))	1113	if (ev_is_active (w))
1045	return;	1114	return;
1046		1115
1047	ev_start ((W)w, ++preparecnt);	1116	ev_start (EV_A_ (W)w, ++preparecnt);
1048	array_needsize (prepares, preparemax, preparecnt, );	1117	array_needsize (prepares, preparemax, preparecnt, );
1049	prepares [preparecnt - 1] = w;	1118	prepares [preparecnt - 1] = w;
1050	}	1119	}
1051		1120
1052	void	1121	void
1053	ev_prepare_stop (struct ev_prepare *w)	1122	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1054	{	1123	{
1055	ev_clear_pending ((W)w);	1124	ev_clear_pending (EV_A_ (W)w);
1056	if (ev_is_active (w))	1125	if (ev_is_active (w))
1057	return;	1126	return;
1058		1127
1059	prepares [w->active - 1] = prepares [--preparecnt];	1128	prepares [w->active - 1] = prepares [--preparecnt];
1060	ev_stop ((W)w);	1129	ev_stop (EV_A_ (W)w);
1061	}	1130	}
1062		1131
1063	void	1132	void
1064	ev_check_start (struct ev_check *w)	1133	ev_check_start (EV_P_ struct ev_check *w)
1065	{	1134	{
1066	if (ev_is_active (w))	1135	if (ev_is_active (w))
1067	return;	1136	return;
1068		1137
1069	ev_start ((W)w, ++checkcnt);	1138	ev_start (EV_A_ (W)w, ++checkcnt);
1070	array_needsize (checks, checkmax, checkcnt, );	1139	array_needsize (checks, checkmax, checkcnt, );
1071	checks [checkcnt - 1] = w;	1140	checks [checkcnt - 1] = w;
1072	}	1141	}
1073		1142
1074	void	1143	void
1075	ev_check_stop (struct ev_check *w)	1144	ev_check_stop (EV_P_ struct ev_check *w)
1076	{	1145	{
1077	ev_clear_pending ((W)w);	1146	ev_clear_pending (EV_A_ (W)w);
1078	if (ev_is_active (w))	1147	if (ev_is_active (w))
1079	return;	1148	return;
1080		1149
1081	checks [w->active - 1] = checks [--checkcnt];	1150	checks [w->active - 1] = checks [--checkcnt];
1082	ev_stop ((W)w);	1151	ev_stop (EV_A_ (W)w);
1083	}	1152	}
1084		1153
1085	void	1154	void
1086	ev_child_start (struct ev_child *w)	1155	ev_child_start (EV_P_ struct ev_child *w)
1087	{	1156	{
1088	if (ev_is_active (w))	1157	if (ev_is_active (w))
1089	return;	1158	return;
1090		1159
1091	ev_start ((W)w, 1);	1160	ev_start (EV_A_ (W)w, 1);
1092	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1161	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1093	}	1162	}
1094		1163
1095	void	1164	void
1096	ev_child_stop (struct ev_child *w)	1165	ev_child_stop (EV_P_ struct ev_child *w)
1097	{	1166	{
1098	ev_clear_pending ((W)w);	1167	ev_clear_pending (EV_A_ (W)w);
1099	if (ev_is_active (w))	1168	if (ev_is_active (w))
1100	return;	1169	return;
1101		1170
1102	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1171	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1103	ev_stop ((W)w);	1172	ev_stop (EV_A_ (W)w);
1104	}	1173	}
1105		1174
1106	/*****************************************************************************/	1175	/*****************************************************************************/
1107		1176
1108	struct ev_once	1177	struct ev_once
…		…
1112	void (cb)(int revents, void arg);	1181	void (cb)(int revents, void arg);
1113	void *arg;	1182	void *arg;
1114	};	1183	};
1115		1184
1116	static void	1185	static void
1117	once_cb (struct ev_once *once, int revents)	1186	once_cb (EV_P_ struct ev_once *once, int revents)
1118	{	1187	{
1119	void (cb)(int revents, void arg) = once->cb;	1188	void (cb)(int revents, void arg) = once->cb;
1120	void *arg = once->arg;	1189	void *arg = once->arg;
1121		1190
1122	ev_io_stop (&once->io);	1191	ev_io_stop (EV_A_ &once->io);
1123	ev_timer_stop (&once->to);	1192	ev_timer_stop (EV_A_ &once->to);
1124	free (once);	1193	free (once);
1125		1194
1126	cb (revents, arg);	1195	cb (revents, arg);
1127	}	1196	}
1128		1197
1129	static void	1198	static void
1130	once_cb_io (struct ev_io *w, int revents)	1199	once_cb_io (EV_P_ struct ev_io *w, int revents)
1131	{	1200	{
1132	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);
1133	}	1202	}
1134		1203
1135	static void	1204	static void
1136	once_cb_to (struct ev_timer *w, int revents)	1205	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1137	{	1206	{
1138	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);
1139	}	1208	}
1140		1209
1141	void	1210	void
1142	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)
1143	{	1212	{
1144	struct ev_once *once = malloc (sizeof (struct ev_once));	1213	struct ev_once *once = malloc (sizeof (struct ev_once));
1145		1214
1146	if (!once)	1215	if (!once)
1147	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1216	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
…		…
1152		1221
1153	ev_watcher_init (&once->io, once_cb_io);	1222	ev_watcher_init (&once->io, once_cb_io);
1154	if (fd >= 0)	1223	if (fd >= 0)
1155	{	1224	{
1156	ev_io_set (&once->io, fd, events);	1225	ev_io_set (&once->io, fd, events);
1157	ev_io_start (&once->io);	1226	ev_io_start (EV_A_ &once->io);
1158	}	1227	}
1159		1228
1160	ev_watcher_init (&once->to, once_cb_to);	1229	ev_watcher_init (&once->to, once_cb_to);
1161	if (timeout >= 0.)	1230	if (timeout >= 0.)
1162	{	1231	{
1163	ev_timer_set (&once->to, timeout, 0.);	1232	ev_timer_set (&once->to, timeout, 0.);
1164	ev_timer_start (&once->to);	1233	ev_timer_start (EV_A_ &once->to);
1165	}	1234	}
1166	}	1235	}
1167	}	1236	}
1168		1237
1169	/*****************************************************************************/	1238	/*****************************************************************************/

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