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

Comparing libev/ev.c (file contents):
Revision 1.62 by root, Sun Nov 4 20:38:07 2007 UTC vs.
Revision 1.97 by root, Sun Nov 11 01:53:07 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
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
53	# endif	62	# endif
54		63
55	#endif	64	#endif
56		65
57	#include <math.h>	66	#include <math.h>
58	#include <stdlib.h>	67	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	68	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	69	#include <stddef.h>
63		70
64	#include <stdio.h>	71	#include <stdio.h>
65		72
66	#include <assert.h>	73	#include <assert.h>
67	#include <errno.h>	74	#include <errno.h>
68	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
69	#ifndef WIN32	80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
70	# include <sys/wait.h>	83	# include <sys/wait.h>
71	#endif	84	#endif
72	#include <sys/time.h>
73	#include <time.h>
74
75	/**/	85	/**/
76		86
77	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
79	#endif	89	#endif
…		…
94	# define EV_USE_KQUEUE 0	104	# define EV_USE_KQUEUE 0
95	#endif	105	#endif
96		106
97	#ifndef EV_USE_WIN32	107	#ifndef EV_USE_WIN32
98	# ifdef WIN32	108	# ifdef WIN32
		109	# define EV_USE_WIN32 0 /* it does not exist, use select */
		110	# undef EV_USE_SELECT
99	# define EV_USE_WIN32 1	111	# define EV_USE_SELECT 1
100	# else	112	# else
101	# define EV_USE_WIN32 0	113	# define EV_USE_WIN32 0
102	# endif	114	# endif
103	#endif	115	#endif
104		116
…		…
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
124	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
125	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
126	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
127		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
128	#include "ev.h"	143	# include "ev.h"
		144	#endif
129		145
130	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	148	# define inline inline
133	#else	149	#else
…		…
145	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
147		163
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		165
		166	#include "ev_win32.c"
		167
150	/*****************************************************************************/	168	/*****************************************************************************/
151		169
		170	static void (syserr_cb)(const char msg);
		171
		172	void ev_set_syserr_cb (void (cb)(const char msg))
		173	{
		174	syserr_cb = cb;
		175	}
		176
		177	static void
		178	syserr (const char *msg)
		179	{
		180	if (!msg)
		181	msg = "(libev) system error";
		182
		183	if (syserr_cb)
		184	syserr_cb (msg);
		185	else
		186	{
		187	perror (msg);
		188	abort ();
		189	}
		190	}
		191
		192	static void (alloc)(void *ptr, long size);
		193
		194	void ev_set_allocator (void (cb)(void *ptr, long size))
		195	{
		196	alloc = cb;
		197	}
		198
		199	static void *
		200	ev_realloc (void *ptr, long size)
		201	{
		202	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		203
		204	if (!ptr && size)
		205	{
		206	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		207	abort ();
		208	}
		209
		210	return ptr;
		211	}
		212
		213	#define ev_malloc(size) ev_realloc (0, (size))
		214	#define ev_free(ptr) ev_realloc ((ptr), 0)
		215
		216	/*****************************************************************************/
		217
152	typedef struct	218	typedef struct
153	{	219	{
154	struct ev_watcher_list *head;	220	WL head;
155	unsigned char events;	221	unsigned char events;
156	unsigned char reify;	222	unsigned char reify;
157	} ANFD;	223	} ANFD;
158		224
159	typedef struct	225	typedef struct
…		…
162	int events;	228	int events;
163	} ANPENDING;	229	} ANPENDING;
164		230
165	#if EV_MULTIPLICITY	231	#if EV_MULTIPLICITY
166		232
167	struct ev_loop	233	struct ev_loop
168	{	234	{
		235	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) decl;	236	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	237	#include "ev_vars.h"
171	};
172	# undef VAR	238	#undef VAR
		239	};
173	# include "ev_wrap.h"	240	#include "ev_wrap.h"
		241
		242	struct ev_loop default_loop_struct;
		243	static struct ev_loop *default_loop;
174		244
175	#else	245	#else
176		246
		247	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	248	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	249	#include "ev_vars.h"
179	# undef VAR	250	#undef VAR
		251
		252	static int default_loop;
180		253
181	#endif	254	#endif
182		255
183	/*****************************************************************************/	256	/*****************************************************************************/
184		257
185	inline ev_tstamp	258	ev_tstamp
186	ev_time (void)	259	ev_time (void)
187	{	260	{
188	#if EV_USE_REALTIME	261	#if EV_USE_REALTIME
189	struct timespec ts;	262	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	263	clock_gettime (CLOCK_REALTIME, &ts);
…		…
209	#endif	282	#endif
210		283
211	return ev_time ();	284	return ev_time ();
212	}	285	}
213		286
		287	#if EV_MULTIPLICITY
214	ev_tstamp	288	ev_tstamp
215	ev_now (EV_P)	289	ev_now (EV_P)
216	{	290	{
217	return rt_now;	291	return ev_rt_now;
218	}	292	}
		293	#endif
219		294
220	#define array_roundsize(base,n) ((n) \| 4 & ~3)	295	#define array_roundsize(type,n) ((n) \| 4 & ~3)
221		296
222	#define array_needsize(base,cur,cnt,init) \	297	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	298	if (expect_false ((cnt) > cur)) \
224	{ \	299	{ \
225	int newcnt = cur; \	300	int newcnt = cur; \
226	do \	301	do \
227	{ \	302	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	303	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	304	} \
230	while ((cnt) > newcnt); \	305	while ((cnt) > newcnt); \
231	\	306	\
232	base = realloc (base, sizeof (base) (newcnt)); \	307	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
233	init (base + cur, newcnt - cur); \	308	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	309	cur = newcnt; \
235	}	310	}
		311
		312	#define array_slim(type,stem) \
		313	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		314	{ \
		315	stem ## max = array_roundsize (stem ## cnt >> 1); \
		316	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		317	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		318	}
		319
		320	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		321	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		322	#define array_free_microshit(stem) \
		323	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		324
		325	#define array_free(stem, idx) \
		326	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
236		327
237	/*****************************************************************************/	328	/*****************************************************************************/
238		329
239	static void	330	static void
240	anfds_init (ANFD *base, int count)	331	anfds_init (ANFD *base, int count)
…		…
247		338
248	++base;	339	++base;
249	}	340	}
250	}	341	}
251		342
252	static void	343	void
253	event (EV_P_ W w, int events)	344	ev_feed_event (EV_P_ void *w, int revents)
254	{	345	{
		346	W w_ = (W)w;
		347
255	if (w->pending)	348	if (w_->pending)
256	{	349	{
257	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	350	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
258	return;	351	return;
259	}	352	}
260		353
261	w->pending = ++pendingcnt [ABSPRI (w)];	354	w_->pending = ++pendingcnt [ABSPRI (w_)];
262	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	355	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
263	pendings [ABSPRI (w)][w->pending - 1].w = w;	356	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
264	pendings [ABSPRI (w)][w->pending - 1].events = events;	357	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
265	}	358	}
266		359
267	static void	360	static void
268	queue_events (EV_P_ W *events, int eventcnt, int type)	361	queue_events (EV_P_ W *events, int eventcnt, int type)
269	{	362	{
270	int i;	363	int i;
271		364
272	for (i = 0; i < eventcnt; ++i)	365	for (i = 0; i < eventcnt; ++i)
273	event (EV_A_ events [i], type);	366	ev_feed_event (EV_A_ events [i], type);
274	}	367	}
275		368
276	static void	369	inline void
277	fd_event (EV_P_ int fd, int events)	370	fd_event (EV_P_ int fd, int revents)
278	{	371	{
279	ANFD *anfd = anfds + fd;	372	ANFD *anfd = anfds + fd;
280	struct ev_io *w;	373	struct ev_io *w;
281		374
282	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
283	{	376	{
284	int ev = w->events & events;	377	int ev = w->events & revents;
285		378
286	if (ev)	379	if (ev)
287	event (EV_A_ (W)w, ev);	380	ev_feed_event (EV_A_ (W)w, ev);
288	}	381	}
		382	}
		383
		384	void
		385	ev_feed_fd_event (EV_P_ int fd, int revents)
		386	{
		387	fd_event (EV_A_ fd, revents);
289	}	388	}
290		389
291	/*****************************************************************************/	390	/*****************************************************************************/
292		391
293	static void	392	static void
…		…
306	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	405	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
307	events \|= w->events;	406	events \|= w->events;
308		407
309	anfd->reify = 0;	408	anfd->reify = 0;
310		409
311	if (anfd->events != events)
312	{
313	method_modify (EV_A_ fd, anfd->events, events);	410	method_modify (EV_A_ fd, anfd->events, events);
314	anfd->events = events;	411	anfd->events = events;
315	}
316	}	412	}
317		413
318	fdchangecnt = 0;	414	fdchangecnt = 0;
319	}	415	}
320		416
321	static void	417	static void
322	fd_change (EV_P_ int fd)	418	fd_change (EV_P_ int fd)
323	{	419	{
324	if (anfds [fd].reify \|\| fdchangecnt < 0)	420	if (anfds [fd].reify)
325	return;	421	return;
326		422
327	anfds [fd].reify = 1;	423	anfds [fd].reify = 1;
328		424
329	++fdchangecnt;	425	++fdchangecnt;
330	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	426	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
331	fdchanges [fdchangecnt - 1] = fd;	427	fdchanges [fdchangecnt - 1] = fd;
332	}	428	}
333		429
334	static void	430	static void
335	fd_kill (EV_P_ int fd)	431	fd_kill (EV_P_ int fd)
…		…
337	struct ev_io *w;	433	struct ev_io *w;
338		434
339	while ((w = (struct ev_io *)anfds [fd].head))	435	while ((w = (struct ev_io *)anfds [fd].head))
340	{	436	{
341	ev_io_stop (EV_A_ w);	437	ev_io_stop (EV_A_ w);
342	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	438	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
343	}	439	}
		440	}
		441
		442	static int
		443	fd_valid (int fd)
		444	{
		445	#ifdef WIN32
		446	return !!win32_get_osfhandle (fd);
		447	#else
		448	return fcntl (fd, F_GETFD) != -1;
		449	#endif
344	}	450	}
345		451
346	/* called on EBADF to verify fds */	452	/* called on EBADF to verify fds */
347	static void	453	static void
348	fd_ebadf (EV_P)	454	fd_ebadf (EV_P)
349	{	455	{
350	int fd;	456	int fd;
351		457
352	for (fd = 0; fd < anfdmax; ++fd)	458	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	459	if (anfds [fd].events)
354	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	460	if (!fd_valid (fd) == -1 && errno == EBADF)
355	fd_kill (EV_A_ fd);	461	fd_kill (EV_A_ fd);
356	}	462	}
357		463
358	/* called on ENOMEM in select/poll to kill some fds and retry */	464	/* called on ENOMEM in select/poll to kill some fds and retry */
359	static void	465	static void
…		…
362	int fd;	468	int fd;
363		469
364	for (fd = anfdmax; fd--; )	470	for (fd = anfdmax; fd--; )
365	if (anfds [fd].events)	471	if (anfds [fd].events)
366	{	472	{
367	close (fd);
368	fd_kill (EV_A_ fd);	473	fd_kill (EV_A_ fd);
369	return;	474	return;
370	}	475	}
371	}	476	}
372		477
373	/* susually called after fork if method needs to re-arm all fds from scratch */	478	/* usually called after fork if method needs to re-arm all fds from scratch */
374	static void	479	static void
375	fd_rearm_all (EV_P)	480	fd_rearm_all (EV_P)
376	{	481	{
377	int fd;	482	int fd;
378		483
…		…
426		531
427	heap [k] = w;	532	heap [k] = w;
428	((W)heap [k])->active = k + 1;	533	((W)heap [k])->active = k + 1;
429	}	534	}
430		535
		536	inline void
		537	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		538	{
		539	ev_tstamp old_at = heap [k]->at;
		540	heap [k]->at = at;
		541
		542	if (old_at < at)
		543	downheap (heap, N, k);
		544	else
		545	upheap (heap, k);
		546	}
		547
431	/*****************************************************************************/	548	/*****************************************************************************/
432		549
433	typedef struct	550	typedef struct
434	{	551	{
435	struct ev_watcher_list *head;	552	WL head;
436	sig_atomic_t volatile gotsig;	553	sig_atomic_t volatile gotsig;
437	} ANSIG;	554	} ANSIG;
438		555
439	static ANSIG *signals;	556	static ANSIG *signals;
440	static int signalmax;	557	static int signalmax;
…		…
456	}	573	}
457		574
458	static void	575	static void
459	sighandler (int signum)	576	sighandler (int signum)
460	{	577	{
		578	#if WIN32
		579	signal (signum, sighandler);
		580	#endif
		581
461	signals [signum - 1].gotsig = 1;	582	signals [signum - 1].gotsig = 1;
462		583
463	if (!gotsig)	584	if (!gotsig)
464	{	585	{
465	int old_errno = errno;	586	int old_errno = errno;
466	gotsig = 1;	587	gotsig = 1;
		588	#ifdef WIN32
		589	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		590	#else
467	write (sigpipe [1], &signum, 1);	591	write (sigpipe [1], &signum, 1);
		592	#endif
468	errno = old_errno;	593	errno = old_errno;
469	}	594	}
470	}	595	}
471		596
		597	void
		598	ev_feed_signal_event (EV_P_ int signum)
		599	{
		600	WL w;
		601
		602	#if EV_MULTIPLICITY
		603	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		604	#endif
		605
		606	--signum;
		607
		608	if (signum < 0 \|\| signum >= signalmax)
		609	return;
		610
		611	signals [signum].gotsig = 0;
		612
		613	for (w = signals [signum].head; w; w = w->next)
		614	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		615	}
		616
472	static void	617	static void
473	sigcb (EV_P_ struct ev_io *iow, int revents)	618	sigcb (EV_P_ struct ev_io *iow, int revents)
474	{	619	{
475	struct ev_watcher_list *w;
476	int signum;	620	int signum;
477		621
		622	#ifdef WIN32
		623	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		624	#else
478	read (sigpipe [0], &revents, 1);	625	read (sigpipe [0], &revents, 1);
		626	#endif
479	gotsig = 0;	627	gotsig = 0;
480		628
481	for (signum = signalmax; signum--; )	629	for (signum = signalmax; signum--; )
482	if (signals [signum].gotsig)	630	if (signals [signum].gotsig)
483	{	631	ev_feed_signal_event (EV_A_ signum + 1);
484	signals [signum].gotsig = 0;
485
486	for (w = signals [signum].head; w; w = w->next)
487	event (EV_A_ (W)w, EV_SIGNAL);
488	}
489	}	632	}
490		633
491	static void	634	static void
492	siginit (EV_P)	635	siginit (EV_P)
493	{	636	{
…		…
505	ev_unref (EV_A); /* child watcher should not keep loop alive */	648	ev_unref (EV_A); /* child watcher should not keep loop alive */
506	}	649	}
507		650
508	/*****************************************************************************/	651	/*****************************************************************************/
509		652
		653	static struct ev_child *childs [PID_HASHSIZE];
		654
510	#ifndef WIN32	655	#ifndef WIN32
511		656
512	static struct ev_child *childs [PID_HASHSIZE];
513	static struct ev_signal childev;	657	static struct ev_signal childev;
514		658
515	#ifndef WCONTINUED	659	#ifndef WCONTINUED
516	# define WCONTINUED 0	660	# define WCONTINUED 0
517	#endif	661	#endif
…		…
522	struct ev_child *w;	666	struct ev_child *w;
523		667
524	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	668	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
525	if (w->pid == pid \|\| !w->pid)	669	if (w->pid == pid \|\| !w->pid)
526	{	670	{
527	w->priority = sw->priority; /* need to do it now */	671	ev_priority (w) = ev_priority (sw); /* need to do it now */
528	w->rpid = pid;	672	w->rpid = pid;
529	w->rstatus = status;	673	w->rstatus = status;
530	event (EV_A_ (W)w, EV_CHILD);	674	ev_feed_event (EV_A_ (W)w, EV_CHILD);
531	}	675	}
532	}	676	}
533		677
534	static void	678	static void
535	childcb (EV_P_ struct ev_signal *sw, int revents)	679	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
537	int pid, status;	681	int pid, status;
538		682
539	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	683	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
540	{	684	{
541	/* make sure we are called again until all childs have been reaped */	685	/* make sure we are called again until all childs have been reaped */
542	event (EV_A_ (W)sw, EV_SIGNAL);	686	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
543		687
544	child_reap (EV_A_ sw, pid, pid, status);	688	child_reap (EV_A_ sw, pid, pid, status);
545	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	689	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
546	}	690	}
547	}	691	}
…		…
604	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	748	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
605	have_monotonic = 1;	749	have_monotonic = 1;
606	}	750	}
607	#endif	751	#endif
608		752
609	rt_now = ev_time ();	753	ev_rt_now = ev_time ();
610	mn_now = get_clock ();	754	mn_now = get_clock ();
611	now_floor = mn_now;	755	now_floor = mn_now;
612	rtmn_diff = rt_now - mn_now;	756	rtmn_diff = ev_rt_now - mn_now;
613		757
614	if (methods == EVMETHOD_AUTO)	758	if (methods == EVMETHOD_AUTO)
615	if (!enable_secure () && getenv ("LIBEV_METHODS"))	759	if (!enable_secure () && getenv ("LIBEV_METHODS"))
616	methods = atoi (getenv ("LIBEV_METHODS"));	760	methods = atoi (getenv ("LIBEV_METHODS"));
617	else	761	else
…		…
631	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	775	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
632	#endif	776	#endif
633	#if EV_USE_SELECT	777	#if EV_USE_SELECT
634	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	778	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
635	#endif	779	#endif
		780
		781	ev_init (&sigev, sigcb);
		782	ev_set_priority (&sigev, EV_MAXPRI);
636	}	783	}
637	}	784	}
638		785
639	void	786	void
640	loop_destroy (EV_P)	787	loop_destroy (EV_P)
641	{	788	{
		789	int i;
		790
642	#if EV_USE_WIN32	791	#if EV_USE_WIN32
643	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	792	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
644	#endif	793	#endif
645	#if EV_USE_KQUEUE	794	#if EV_USE_KQUEUE
646	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
…		…
653	#endif	802	#endif
654	#if EV_USE_SELECT	803	#if EV_USE_SELECT
655	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
656	#endif	805	#endif
657		806
		807	for (i = NUMPRI; i--; )
		808	array_free (pending, [i]);
		809
		810	/* have to use the microsoft-never-gets-it-right macro */
		811	array_free_microshit (fdchange);
		812	array_free_microshit (timer);
		813	#if EV_PERIODICS
		814	array_free_microshit (periodic);
		815	#endif
		816	array_free_microshit (idle);
		817	array_free_microshit (prepare);
		818	array_free_microshit (check);
		819
658	method = 0;	820	method = 0;
659	/TODO/
660	}	821	}
661		822
662	void	823	static void
663	loop_fork (EV_P)	824	loop_fork (EV_P)
664	{	825	{
665	/TODO/
666	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
667	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
668	#endif	828	#endif
669	#if EV_USE_KQUEUE	829	#if EV_USE_KQUEUE
670	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
671	#endif	831	#endif
		832
		833	if (ev_is_active (&sigev))
		834	{
		835	/* default loop */
		836
		837	ev_ref (EV_A);
		838	ev_io_stop (EV_A_ &sigev);
		839	close (sigpipe [0]);
		840	close (sigpipe [1]);
		841
		842	while (pipe (sigpipe))
		843	syserr ("(libev) error creating pipe");
		844
		845	siginit (EV_A);
		846	}
		847
		848	postfork = 0;
672	}	849	}
673		850
674	#if EV_MULTIPLICITY	851	#if EV_MULTIPLICITY
675	struct ev_loop *	852	struct ev_loop *
676	ev_loop_new (int methods)	853	ev_loop_new (int methods)
677	{	854	{
678	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	855	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		856
		857	memset (loop, 0, sizeof (struct ev_loop));
679		858
680	loop_init (EV_A_ methods);	859	loop_init (EV_A_ methods);
681		860
682	if (ev_method (EV_A))	861	if (ev_method (EV_A))
683	return loop;	862	return loop;
…		…
687		866
688	void	867	void
689	ev_loop_destroy (EV_P)	868	ev_loop_destroy (EV_P)
690	{	869	{
691	loop_destroy (EV_A);	870	loop_destroy (EV_A);
692	free (loop);	871	ev_free (loop);
693	}	872	}
694		873
695	void	874	void
696	ev_loop_fork (EV_P)	875	ev_loop_fork (EV_P)
697	{	876	{
698	loop_fork (EV_A);	877	postfork = 1;
699	}	878	}
700		879
701	#endif	880	#endif
702		881
703	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
704	struct ev_loop default_loop_struct;
705	static struct ev_loop *default_loop;
706
707	struct ev_loop *	883	struct ev_loop *
708	#else	884	#else
709	static int default_loop;
710
711	int	885	int
712	#endif	886	#endif
713	ev_default_loop (int methods)	887	ev_default_loop (int methods)
714	{	888	{
715	if (sigpipe [0] == sigpipe [1])	889	if (sigpipe [0] == sigpipe [1])
…		…
726		900
727	loop_init (EV_A_ methods);	901	loop_init (EV_A_ methods);
728		902
729	if (ev_method (EV_A))	903	if (ev_method (EV_A))
730	{	904	{
731	ev_watcher_init (&sigev, sigcb);
732	ev_set_priority (&sigev, EV_MAXPRI);
733	siginit (EV_A);	905	siginit (EV_A);
734		906
735	#ifndef WIN32	907	#ifndef WIN32
736	ev_signal_init (&childev, childcb, SIGCHLD);	908	ev_signal_init (&childev, childcb, SIGCHLD);
737	ev_set_priority (&childev, EV_MAXPRI);	909	ev_set_priority (&childev, EV_MAXPRI);
…		…
751	{	923	{
752	#if EV_MULTIPLICITY	924	#if EV_MULTIPLICITY
753	struct ev_loop *loop = default_loop;	925	struct ev_loop *loop = default_loop;
754	#endif	926	#endif
755		927
		928	#ifndef WIN32
756	ev_ref (EV_A); /* child watcher */	929	ev_ref (EV_A); /* child watcher */
757	ev_signal_stop (EV_A_ &childev);	930	ev_signal_stop (EV_A_ &childev);
		931	#endif
758		932
759	ev_ref (EV_A); /* signal watcher */	933	ev_ref (EV_A); /* signal watcher */
760	ev_io_stop (EV_A_ &sigev);	934	ev_io_stop (EV_A_ &sigev);
761		935
762	close (sigpipe [0]); sigpipe [0] = 0;	936	close (sigpipe [0]); sigpipe [0] = 0;
…		…
770	{	944	{
771	#if EV_MULTIPLICITY	945	#if EV_MULTIPLICITY
772	struct ev_loop *loop = default_loop;	946	struct ev_loop *loop = default_loop;
773	#endif	947	#endif
774		948
775	loop_fork (EV_A);	949	if (method)
776		950	postfork = 1;
777	ev_io_stop (EV_A_ &sigev);
778	close (sigpipe [0]);
779	close (sigpipe [1]);
780	pipe (sigpipe);
781
782	ev_ref (EV_A); /* signal watcher */
783	siginit (EV_A);
784	}	951	}
785		952
786	/*****************************************************************************/	953	/*****************************************************************************/
		954
		955	static int
		956	any_pending (EV_P)
		957	{
		958	int pri;
		959
		960	for (pri = NUMPRI; pri--; )
		961	if (pendingcnt [pri])
		962	return 1;
		963
		964	return 0;
		965	}
787		966
788	static void	967	static void
789	call_pending (EV_P)	968	call_pending (EV_P)
790	{	969	{
791	int pri;	970	int pri;
…		…
796	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
797		976
798	if (p->w)	977	if (p->w)
799	{	978	{
800	p->w->pending = 0;	979	p->w->pending = 0;
801	p->w->cb (EV_A_ p->w, p->events);	980	EV_CB_INVOKE (p->w, p->events);
802	}	981	}
803	}	982	}
804	}	983	}
805		984
806	static void	985	static void
807	timers_reify (EV_P)	986	timers_reify (EV_P)
808	{	987	{
809	while (timercnt && timers [0]->at <= mn_now)	988	while (timercnt && ((WT)timers [0])->at <= mn_now)
810	{	989	{
811	struct ev_timer *w = timers [0];	990	struct ev_timer *w = timers [0];
812		991
813	assert (("inactive timer on timer heap detected", ev_is_active (w)));	992	assert (("inactive timer on timer heap detected", ev_is_active (w)));
814		993
815	/* first reschedule or stop timer */	994	/* first reschedule or stop timer */
816	if (w->repeat)	995	if (w->repeat)
817	{	996	{
818	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	997	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		998
819	w->at = mn_now + w->repeat;	999	((WT)w)->at += w->repeat;
		1000	if (((WT)w)->at < mn_now)
		1001	((WT)w)->at = mn_now;
		1002
820	downheap ((WT *)timers, timercnt, 0);	1003	downheap ((WT *)timers, timercnt, 0);
821	}	1004	}
822	else	1005	else
823	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1006	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
824		1007
825	event (EV_A_ (W)w, EV_TIMEOUT);	1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
826	}	1009	}
827	}	1010	}
828		1011
		1012	#if EV_PERIODICS
829	static void	1013	static void
830	periodics_reify (EV_P)	1014	periodics_reify (EV_P)
831	{	1015	{
832	while (periodiccnt && periodics [0]->at <= rt_now)	1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
833	{	1017	{
834	struct ev_periodic *w = periodics [0];	1018	struct ev_periodic *w = periodics [0];
835		1019
836	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
837		1021
838	/* first reschedule or stop timer */	1022	/* first reschedule or stop timer */
839	if (w->interval)	1023	if (w->reschedule_cb)
840	{	1024	{
		1025	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1026
		1027	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1028	downheap ((WT *)periodics, periodiccnt, 0);
		1029	}
		1030	else if (w->interval)
		1031	{
841	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1032	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
842	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1033	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
843	downheap ((WT *)periodics, periodiccnt, 0);	1034	downheap ((WT *)periodics, periodiccnt, 0);
844	}	1035	}
845	else	1036	else
846	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1037	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
847		1038
848	event (EV_A_ (W)w, EV_PERIODIC);	1039	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
849	}	1040	}
850	}	1041	}
851		1042
852	static void	1043	static void
853	periodics_reschedule (EV_P)	1044	periodics_reschedule (EV_P)
…		…
857	/* adjust periodics after time jump */	1048	/* adjust periodics after time jump */
858	for (i = 0; i < periodiccnt; ++i)	1049	for (i = 0; i < periodiccnt; ++i)
859	{	1050	{
860	struct ev_periodic *w = periodics [i];	1051	struct ev_periodic *w = periodics [i];
861		1052
		1053	if (w->reschedule_cb)
		1054	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
862	if (w->interval)	1055	else if (w->interval)
863	{
864	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1056	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
865
866	if (fabs (diff) >= 1e-4)
867	{
868	ev_periodic_stop (EV_A_ w);
869	ev_periodic_start (EV_A_ w);
870
871	i = 0; /* restart loop, inefficient, but time jumps should be rare */
872	}
873	}
874	}	1057	}
		1058
		1059	/* now rebuild the heap */
		1060	for (i = periodiccnt >> 1; i--; )
		1061	downheap ((WT *)periodics, periodiccnt, i);
875	}	1062	}
		1063	#endif
876		1064
877	inline int	1065	inline int
878	time_update_monotonic (EV_P)	1066	time_update_monotonic (EV_P)
879	{	1067	{
880	mn_now = get_clock ();	1068	mn_now = get_clock ();
881		1069
882	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1070	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
883	{	1071	{
884	rt_now = rtmn_diff + mn_now;	1072	ev_rt_now = rtmn_diff + mn_now;
885	return 0;	1073	return 0;
886	}	1074	}
887	else	1075	else
888	{	1076	{
889	now_floor = mn_now;	1077	now_floor = mn_now;
890	rt_now = ev_time ();	1078	ev_rt_now = ev_time ();
891	return 1;	1079	return 1;
892	}	1080	}
893	}	1081	}
894		1082
895	static void	1083	static void
…		…
904	{	1092	{
905	ev_tstamp odiff = rtmn_diff;	1093	ev_tstamp odiff = rtmn_diff;
906		1094
907	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1095	for (i = 4; --i; ) /* loop a few times, before making important decisions */
908	{	1096	{
909	rtmn_diff = rt_now - mn_now;	1097	rtmn_diff = ev_rt_now - mn_now;
910		1098
911	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1099	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
912	return; /* all is well */	1100	return; /* all is well */
913		1101
914	rt_now = ev_time ();	1102	ev_rt_now = ev_time ();
915	mn_now = get_clock ();	1103	mn_now = get_clock ();
916	now_floor = mn_now;	1104	now_floor = mn_now;
917	}	1105	}
918		1106
		1107	# if EV_PERIODICS
919	periodics_reschedule (EV_A);	1108	periodics_reschedule (EV_A);
		1109	# endif
920	/* no timer adjustment, as the monotonic clock doesn't jump */	1110	/* no timer adjustment, as the monotonic clock doesn't jump */
921	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1111	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
922	}	1112	}
923	}	1113	}
924	else	1114	else
925	#endif	1115	#endif
926	{	1116	{
927	rt_now = ev_time ();	1117	ev_rt_now = ev_time ();
928		1118
929	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1119	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
930	{	1120	{
		1121	#if EV_PERIODICS
931	periodics_reschedule (EV_A);	1122	periodics_reschedule (EV_A);
		1123	#endif
932		1124
933	/* adjust timers. this is easy, as the offset is the same for all */	1125	/* adjust timers. this is easy, as the offset is the same for all */
934	for (i = 0; i < timercnt; ++i)	1126	for (i = 0; i < timercnt; ++i)
935	timers [i]->at += rt_now - mn_now;	1127	((WT)timers [i])->at += ev_rt_now - mn_now;
936	}	1128	}
937		1129
938	mn_now = rt_now;	1130	mn_now = ev_rt_now;
939	}	1131	}
940	}	1132	}
941		1133
942	void	1134	void
943	ev_ref (EV_P)	1135	ev_ref (EV_P)
…		…
966	{	1158	{
967	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
968	call_pending (EV_A);	1160	call_pending (EV_A);
969	}	1161	}
970		1162
		1163	/* we might have forked, so reify kernel state if necessary */
		1164	if (expect_false (postfork))
		1165	loop_fork (EV_A);
		1166
971	/* update fd-related kernel structures */	1167	/* update fd-related kernel structures */
972	fd_reify (EV_A);	1168	fd_reify (EV_A);
973		1169
974	/* calculate blocking time */	1170	/* calculate blocking time */
975		1171
976	/* we only need this for !monotonic clockor timers, but as we basically	1172	/* we only need this for !monotonic clock or timers, but as we basically
977	always have timers, we just calculate it always */	1173	always have timers, we just calculate it always */
978	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
979	if (expect_true (have_monotonic))	1175	if (expect_true (have_monotonic))
980	time_update_monotonic (EV_A);	1176	time_update_monotonic (EV_A);
981	else	1177	else
982	#endif	1178	#endif
983	{	1179	{
984	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
985	mn_now = rt_now;	1181	mn_now = ev_rt_now;
986	}	1182	}
987		1183
988	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
989	block = 0.;	1185	block = 0.;
990	else	1186	else
991	{	1187	{
992	block = MAX_BLOCKTIME;	1188	block = MAX_BLOCKTIME;
993		1189
994	if (timercnt)	1190	if (timercnt)
995	{	1191	{
996	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
997	if (block > to) block = to;	1193	if (block > to) block = to;
998	}	1194	}
999		1195
		1196	#if EV_PERIODICS
1000	if (periodiccnt)	1197	if (periodiccnt)
1001	{	1198	{
1002	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1003	if (block > to) block = to;	1200	if (block > to) block = to;
1004	}	1201	}
		1202	#endif
1005		1203
1006	if (block < 0.) block = 0.;	1204	if (block < 0.) block = 0.;
1007	}	1205	}
1008		1206
1009	method_poll (EV_A_ block);	1207	method_poll (EV_A_ block);
1010		1208
1011	/* update rt_now, do magic */	1209	/* update ev_rt_now, do magic */
1012	time_update (EV_A);	1210	time_update (EV_A);
1013		1211
1014	/* queue pending timers and reschedule them */	1212	/* queue pending timers and reschedule them */
1015	timers_reify (EV_A); /* relative timers called last */	1213	timers_reify (EV_A); /* relative timers called last */
		1214	#if EV_PERIODICS
1016	periodics_reify (EV_A); /* absolute timers called first */	1215	periodics_reify (EV_A); /* absolute timers called first */
		1216	#endif
1017		1217
1018	/* queue idle watchers unless io or timers are pending */	1218	/* queue idle watchers unless io or timers are pending */
1019	if (!pendingcnt)	1219	if (idlecnt && !any_pending (EV_A))
1020	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1021		1221
1022	/* queue check watchers, to be executed first */	1222	/* queue check watchers, to be executed first */
1023	if (checkcnt)	1223	if (checkcnt)
1024	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1099	return;	1299	return;
1100		1300
1101	assert (("ev_io_start called with negative fd", fd >= 0));	1301	assert (("ev_io_start called with negative fd", fd >= 0));
1102		1302
1103	ev_start (EV_A_ (W)w, 1);	1303	ev_start (EV_A_ (W)w, 1);
1104	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1304	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1105	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1305	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1106		1306
1107	fd_change (EV_A_ fd);	1307	fd_change (EV_A_ fd);
1108	}	1308	}
1109		1309
…		…
1112	{	1312	{
1113	ev_clear_pending (EV_A_ (W)w);	1313	ev_clear_pending (EV_A_ (W)w);
1114	if (!ev_is_active (w))	1314	if (!ev_is_active (w))
1115	return;	1315	return;
1116		1316
		1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1318
1117	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1118	ev_stop (EV_A_ (W)w);	1320	ev_stop (EV_A_ (W)w);
1119		1321
1120	fd_change (EV_A_ w->fd);	1322	fd_change (EV_A_ w->fd);
1121	}	1323	}
…		…
1124	ev_timer_start (EV_P_ struct ev_timer *w)	1326	ev_timer_start (EV_P_ struct ev_timer *w)
1125	{	1327	{
1126	if (ev_is_active (w))	1328	if (ev_is_active (w))
1127	return;	1329	return;
1128		1330
1129	w->at += mn_now;	1331	((WT)w)->at += mn_now;
1130		1332
1131	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1333	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1132		1334
1133	ev_start (EV_A_ (W)w, ++timercnt);	1335	ev_start (EV_A_ (W)w, ++timercnt);
1134	array_needsize (timers, timermax, timercnt, );	1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1135	timers [timercnt - 1] = w;	1337	timers [timercnt - 1] = w;
1136	upheap ((WT *)timers, timercnt - 1);	1338	upheap ((WT *)timers, timercnt - 1);
1137		1339
1138	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1139	}	1341	}
…		…
1151	{	1353	{
1152	timers [((W)w)->active - 1] = timers [timercnt];	1354	timers [((W)w)->active - 1] = timers [timercnt];
1153	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1355	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1154	}	1356	}
1155		1357
1156	w->at = w->repeat;	1358	((WT)w)->at -= mn_now;
1157		1359
1158	ev_stop (EV_A_ (W)w);	1360	ev_stop (EV_A_ (W)w);
1159	}	1361	}
1160		1362
1161	void	1363	void
1162	ev_timer_again (EV_P_ struct ev_timer *w)	1364	ev_timer_again (EV_P_ struct ev_timer *w)
1163	{	1365	{
1164	if (ev_is_active (w))	1366	if (ev_is_active (w))
1165	{	1367	{
1166	if (w->repeat)	1368	if (w->repeat)
1167	{
1168	w->at = mn_now + w->repeat;
1169	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
1170	}
1171	else	1370	else
1172	ev_timer_stop (EV_A_ w);	1371	ev_timer_stop (EV_A_ w);
1173	}	1372	}
1174	else if (w->repeat)	1373	else if (w->repeat)
1175	ev_timer_start (EV_A_ w);	1374	ev_timer_start (EV_A_ w);
1176	}	1375	}
1177		1376
		1377	#if EV_PERIODICS
1178	void	1378	void
1179	ev_periodic_start (EV_P_ struct ev_periodic *w)	1379	ev_periodic_start (EV_P_ struct ev_periodic *w)
1180	{	1380	{
1181	if (ev_is_active (w))	1381	if (ev_is_active (w))
1182	return;	1382	return;
1183		1383
		1384	if (w->reschedule_cb)
		1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1386	else if (w->interval)
		1387	{
1184	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1388	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1185
1186	/* this formula differs from the one in periodic_reify because we do not always round up */	1389	/* this formula differs from the one in periodic_reify because we do not always round up */
1187	if (w->interval)
1188	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1390	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1391	}
1189		1392
1190	ev_start (EV_A_ (W)w, ++periodiccnt);	1393	ev_start (EV_A_ (W)w, ++periodiccnt);
1191	array_needsize (periodics, periodicmax, periodiccnt, );	1394	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1192	periodics [periodiccnt - 1] = w;	1395	periodics [periodiccnt - 1] = w;
1193	upheap ((WT *)periodics, periodiccnt - 1);	1396	upheap ((WT *)periodics, periodiccnt - 1);
1194		1397
1195	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1398	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1196	}	1399	}
…		…
1212		1415
1213	ev_stop (EV_A_ (W)w);	1416	ev_stop (EV_A_ (W)w);
1214	}	1417	}
1215		1418
1216	void	1419	void
		1420	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1421	{
		1422	/* TODO: use adjustheap and recalculation */
		1423	ev_periodic_stop (EV_A_ w);
		1424	ev_periodic_start (EV_A_ w);
		1425	}
		1426	#endif
		1427
		1428	void
1217	ev_idle_start (EV_P_ struct ev_idle *w)	1429	ev_idle_start (EV_P_ struct ev_idle *w)
1218	{	1430	{
1219	if (ev_is_active (w))	1431	if (ev_is_active (w))
1220	return;	1432	return;
1221		1433
1222	ev_start (EV_A_ (W)w, ++idlecnt);	1434	ev_start (EV_A_ (W)w, ++idlecnt);
1223	array_needsize (idles, idlemax, idlecnt, );	1435	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1224	idles [idlecnt - 1] = w;	1436	idles [idlecnt - 1] = w;
1225	}	1437	}
1226		1438
1227	void	1439	void
1228	ev_idle_stop (EV_P_ struct ev_idle *w)	1440	ev_idle_stop (EV_P_ struct ev_idle *w)
…		…
1240	{	1452	{
1241	if (ev_is_active (w))	1453	if (ev_is_active (w))
1242	return;	1454	return;
1243		1455
1244	ev_start (EV_A_ (W)w, ++preparecnt);	1456	ev_start (EV_A_ (W)w, ++preparecnt);
1245	array_needsize (prepares, preparemax, preparecnt, );	1457	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1246	prepares [preparecnt - 1] = w;	1458	prepares [preparecnt - 1] = w;
1247	}	1459	}
1248		1460
1249	void	1461	void
1250	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1462	ev_prepare_stop (EV_P_ struct ev_prepare *w)
…		…
1262	{	1474	{
1263	if (ev_is_active (w))	1475	if (ev_is_active (w))
1264	return;	1476	return;
1265		1477
1266	ev_start (EV_A_ (W)w, ++checkcnt);	1478	ev_start (EV_A_ (W)w, ++checkcnt);
1267	array_needsize (checks, checkmax, checkcnt, );	1479	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1268	checks [checkcnt - 1] = w;	1480	checks [checkcnt - 1] = w;
1269	}	1481	}
1270		1482
1271	void	1483	void
1272	ev_check_stop (EV_P_ struct ev_check *w)	1484	ev_check_stop (EV_P_ struct ev_check *w)
1273	{	1485	{
1274	ev_clear_pending (EV_A_ (W)w);	1486	ev_clear_pending (EV_A_ (W)w);
1275	if (ev_is_active (w))	1487	if (!ev_is_active (w))
1276	return;	1488	return;
1277		1489
1278	checks [((W)w)->active - 1] = checks [--checkcnt];	1490	checks [((W)w)->active - 1] = checks [--checkcnt];
1279	ev_stop (EV_A_ (W)w);	1491	ev_stop (EV_A_ (W)w);
1280	}	1492	}
…		…
1293	return;	1505	return;
1294		1506
1295	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1507	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1296		1508
1297	ev_start (EV_A_ (W)w, 1);	1509	ev_start (EV_A_ (W)w, 1);
1298	array_needsize (signals, signalmax, w->signum, signals_init);	1510	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1299	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1511	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1300		1512
1301	if (!w->next)	1513	if (!((WL)w)->next)
1302	{	1514	{
		1515	#if WIN32
		1516	signal (w->signum, sighandler);
		1517	#else
1303	struct sigaction sa;	1518	struct sigaction sa;
1304	sa.sa_handler = sighandler;	1519	sa.sa_handler = sighandler;
1305	sigfillset (&sa.sa_mask);	1520	sigfillset (&sa.sa_mask);
1306	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1521	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1307	sigaction (w->signum, &sa, 0);	1522	sigaction (w->signum, &sa, 0);
		1523	#endif
1308	}	1524	}
1309	}	1525	}
1310		1526
1311	void	1527	void
1312	ev_signal_stop (EV_P_ struct ev_signal *w)	1528	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1337		1553
1338	void	1554	void
1339	ev_child_stop (EV_P_ struct ev_child *w)	1555	ev_child_stop (EV_P_ struct ev_child *w)
1340	{	1556	{
1341	ev_clear_pending (EV_A_ (W)w);	1557	ev_clear_pending (EV_A_ (W)w);
1342	if (ev_is_active (w))	1558	if (!ev_is_active (w))
1343	return;	1559	return;
1344		1560
1345	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1561	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1346	ev_stop (EV_A_ (W)w);	1562	ev_stop (EV_A_ (W)w);
1347	}	1563	}
…		…
1362	void (cb)(int revents, void arg) = once->cb;	1578	void (cb)(int revents, void arg) = once->cb;
1363	void *arg = once->arg;	1579	void *arg = once->arg;
1364		1580
1365	ev_io_stop (EV_A_ &once->io);	1581	ev_io_stop (EV_A_ &once->io);
1366	ev_timer_stop (EV_A_ &once->to);	1582	ev_timer_stop (EV_A_ &once->to);
1367	free (once);	1583	ev_free (once);
1368		1584
1369	cb (revents, arg);	1585	cb (revents, arg);
1370	}	1586	}
1371		1587
1372	static void	1588	static void
…		…
1382	}	1598	}
1383		1599
1384	void	1600	void
1385	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1601	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1386	{	1602	{
1387	struct ev_once *once = malloc (sizeof (struct ev_once));	1603	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1388		1604
1389	if (!once)	1605	if (!once)
1390	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1606	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1391	else	1607	else
1392	{	1608	{
1393	once->cb = cb;	1609	once->cb = cb;
1394	once->arg = arg;	1610	once->arg = arg;
1395		1611
1396	ev_watcher_init (&once->io, once_cb_io);	1612	ev_init (&once->io, once_cb_io);
1397	if (fd >= 0)	1613	if (fd >= 0)
1398	{	1614	{
1399	ev_io_set (&once->io, fd, events);	1615	ev_io_set (&once->io, fd, events);
1400	ev_io_start (EV_A_ &once->io);	1616	ev_io_start (EV_A_ &once->io);
1401	}	1617	}
1402		1618
1403	ev_watcher_init (&once->to, once_cb_to);	1619	ev_init (&once->to, once_cb_to);
1404	if (timeout >= 0.)	1620	if (timeout >= 0.)
1405	{	1621	{
1406	ev_timer_set (&once->to, timeout, 0.);	1622	ev_timer_set (&once->to, timeout, 0.);
1407	ev_timer_start (EV_A_ &once->to);	1623	ev_timer_start (EV_A_ &once->to);
1408	}	1624	}
1409	}	1625	}
1410	}	1626	}
1411		1627
		1628	#ifdef __cplusplus
		1629	}
		1630	#endif
		1631

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Comparing libev/ev.c (file contents): Revision 1.62 by root, Sun Nov 4 20:38:07 2007 UTC vs. Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.62 by root, Sun Nov 4 20:38:07 2007 UTC vs.
Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC