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

Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 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	#ifndef EV_EMBED	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
33	#endif	64	#endif
34		65
35	#include <math.h>	66	#include <math.h>
36	#include <stdlib.h>	67	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	68	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	69	#include <stddef.h>
41		70
42	#include <stdio.h>	71	#include <stdio.h>
43		72
44	#include <assert.h>	73	#include <assert.h>
45	#include <errno.h>	74	#include <errno.h>
46	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
47	#ifndef WIN32	80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
48	# include <sys/wait.h>	83	# include <sys/wait.h>
49	#endif	84	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	85	/**/
54		86
55	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
57	#endif	89	#endif
58		90
59	#ifndef EV_USE_SELECT	91	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	92	# define EV_USE_SELECT 1
61	#endif	93	#endif
62		94
63	#ifndef EV_USEV_POLL	95	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	97	#endif
66		98
67	#ifndef EV_USE_EPOLL	99	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
69	#endif	101	#endif
70		102
71	#ifndef EV_USE_KQUEUE	103	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	104	# define EV_USE_KQUEUE 0
		105	#endif
		106
		107	#ifndef EV_USE_WIN32
		108	# ifdef WIN32
		109	# define EV_USE_WIN32 0 /* it does not exist, use select */
		110	# undef EV_USE_SELECT
		111	# define EV_USE_SELECT 1
		112	# else
		113	# define EV_USE_WIN32 0
		114	# endif
73	#endif	115	#endif
74		116
75	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
77	#endif	119	#endif
…		…
93	#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) */
94	#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) */
95	#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 */
96	/#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 */
97		139
98	#ifndef EV_EMBED	140	#ifdef EV_H
		141	# include EV_H
		142	#else
99	# include "ev.h"	143	# include "ev.h"
100	#endif	144	#endif
101		145
102	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
103	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
…		…
117	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
118	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
119		163
120	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121		165
		166	#ifdef WIN32
		167	# include "ev_win32.c"
		168	#endif
		169
122	/*****************************************************************************/	170	/*****************************************************************************/
123		171
		172	static void (syserr_cb)(const char msg);
		173
		174	void ev_set_syserr_cb (void (cb)(const char msg))
		175	{
		176	syserr_cb = cb;
		177	}
		178
		179	static void
		180	syserr (const char *msg)
		181	{
		182	if (!msg)
		183	msg = "(libev) system error";
		184
		185	if (syserr_cb)
		186	syserr_cb (msg);
		187	else
		188	{
		189	perror (msg);
		190	abort ();
		191	}
		192	}
		193
		194	static void (alloc)(void *ptr, long size);
		195
		196	void ev_set_allocator (void (cb)(void *ptr, long size))
		197	{
		198	alloc = cb;
		199	}
		200
		201	static void *
		202	ev_realloc (void *ptr, long size)
		203	{
		204	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		205
		206	if (!ptr && size)
		207	{
		208	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		209	abort ();
		210	}
		211
		212	return ptr;
		213	}
		214
		215	#define ev_malloc(size) ev_realloc (0, (size))
		216	#define ev_free(ptr) ev_realloc ((ptr), 0)
		217
		218	/*****************************************************************************/
		219
124	typedef struct	220	typedef struct
125	{	221	{
126	struct ev_watcher_list *head;	222	WL head;
127	unsigned char events;	223	unsigned char events;
128	unsigned char reify;	224	unsigned char reify;
129	} ANFD;	225	} ANFD;
130		226
131	typedef struct	227	typedef struct
…		…
134	int events;	230	int events;
135	} ANPENDING;	231	} ANPENDING;
136		232
137	#if EV_MULTIPLICITY	233	#if EV_MULTIPLICITY
138		234
139	struct ev_loop	235	struct ev_loop
140	{	236	{
		237	ev_tstamp ev_rt_now;
141	# define VAR(name,decl) decl;	238	#define VAR(name,decl) decl;
142	# include "ev_vars.h"	239	#include "ev_vars.h"
143	};
144	# undef VAR	240	#undef VAR
		241	};
145	# include "ev_wrap.h"	242	#include "ev_wrap.h"
		243
		244	struct ev_loop default_loop_struct;
		245	static struct ev_loop *default_loop;
146		246
147	#else	247	#else
148		248
		249	ev_tstamp ev_rt_now;
149	# define VAR(name,decl) static decl;	250	#define VAR(name,decl) static decl;
150	# include "ev_vars.h"	251	#include "ev_vars.h"
151	# undef VAR	252	#undef VAR
		253
		254	static int default_loop;
152		255
153	#endif	256	#endif
154		257
155	/*****************************************************************************/	258	/*****************************************************************************/
156		259
157	inline ev_tstamp	260	ev_tstamp
158	ev_time (void)	261	ev_time (void)
159	{	262	{
160	#if EV_USE_REALTIME	263	#if EV_USE_REALTIME
161	struct timespec ts;	264	struct timespec ts;
162	clock_gettime (CLOCK_REALTIME, &ts);	265	clock_gettime (CLOCK_REALTIME, &ts);
…		…
181	#endif	284	#endif
182		285
183	return ev_time ();	286	return ev_time ();
184	}	287	}
185		288
		289	#if EV_MULTIPLICITY
186	ev_tstamp	290	ev_tstamp
187	ev_now (EV_P)	291	ev_now (EV_P)
188	{	292	{
189	return rt_now;	293	return ev_rt_now;
190	}	294	}
		295	#endif
191		296
192	#define array_roundsize(base,n) ((n) \| 4 & ~3)	297	#define array_roundsize(type,n) ((n) \| 4 & ~3)
193		298
194	#define array_needsize(base,cur,cnt,init) \	299	#define array_needsize(type,base,cur,cnt,init) \
195	if (expect_false ((cnt) > cur)) \	300	if (expect_false ((cnt) > cur)) \
196	{ \	301	{ \
197	int newcnt = cur; \	302	int newcnt = cur; \
198	do \	303	do \
199	{ \	304	{ \
200	newcnt = array_roundsize (base, newcnt << 1); \	305	newcnt = array_roundsize (type, newcnt << 1); \
201	} \	306	} \
202	while ((cnt) > newcnt); \	307	while ((cnt) > newcnt); \
203	\	308	\
204	base = realloc (base, sizeof (base) (newcnt)); \	309	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
205	init (base + cur, newcnt - cur); \	310	init (base + cur, newcnt - cur); \
206	cur = newcnt; \	311	cur = newcnt; \
207	}	312	}
		313
		314	#define array_slim(type,stem) \
		315	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		316	{ \
		317	stem ## max = array_roundsize (stem ## cnt >> 1); \
		318	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		319	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		320	}
		321
		322	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		323	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		324	#define array_free_microshit(stem) \
		325	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		326
		327	#define array_free(stem, idx) \
		328	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
208		329
209	/*****************************************************************************/	330	/*****************************************************************************/
210		331
211	static void	332	static void
212	anfds_init (ANFD *base, int count)	333	anfds_init (ANFD *base, int count)
…		…
219		340
220	++base;	341	++base;
221	}	342	}
222	}	343	}
223		344
224	static void	345	void
225	event (EV_P_ W w, int events)	346	ev_feed_event (EV_P_ void *w, int revents)
226	{	347	{
		348	W w_ = (W)w;
		349
227	if (w->pending)	350	if (w_->pending)
228	{	351	{
229	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
230	return;	353	return;
231	}	354	}
232		355
233	w->pending = ++pendingcnt [ABSPRI (w)];	356	w_->pending = ++pendingcnt [ABSPRI (w_)];
234	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	357	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
235	pendings [ABSPRI (w)][w->pending - 1].w = w;	358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236	pendings [ABSPRI (w)][w->pending - 1].events = events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237	}	360	}
238		361
239	static void	362	static void
240	queue_events (EV_P_ W *events, int eventcnt, int type)	363	queue_events (EV_P_ W *events, int eventcnt, int type)
241	{	364	{
242	int i;	365	int i;
243		366
244	for (i = 0; i < eventcnt; ++i)	367	for (i = 0; i < eventcnt; ++i)
245	event (EV_A_ events [i], type);	368	ev_feed_event (EV_A_ events [i], type);
246	}	369	}
247		370
248	static void	371	inline void
249	fd_event (EV_P_ int fd, int events)	372	fd_event (EV_P_ int fd, int revents)
250	{	373	{
251	ANFD *anfd = anfds + fd;	374	ANFD *anfd = anfds + fd;
252	struct ev_io *w;	375	struct ev_io *w;
253		376
254	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
255	{	378	{
256	int ev = w->events & events;	379	int ev = w->events & revents;
257		380
258	if (ev)	381	if (ev)
259	event (EV_A_ (W)w, ev);	382	ev_feed_event (EV_A_ (W)w, ev);
260	}	383	}
		384	}
		385
		386	void
		387	ev_feed_fd_event (EV_P_ int fd, int revents)
		388	{
		389	fd_event (EV_A_ fd, revents);
261	}	390	}
262		391
263	/*****************************************************************************/	392	/*****************************************************************************/
264		393
265	static void	394	static void
…		…
278	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	407	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
279	events \|= w->events;	408	events \|= w->events;
280		409
281	anfd->reify = 0;	410	anfd->reify = 0;
282		411
283	if (anfd->events != events)
284	{
285	method_modify (EV_A_ fd, anfd->events, events);	412	method_modify (EV_A_ fd, anfd->events, events);
286	anfd->events = events;	413	anfd->events = events;
287	}
288	}	414	}
289		415
290	fdchangecnt = 0;	416	fdchangecnt = 0;
291	}	417	}
292		418
293	static void	419	static void
294	fd_change (EV_P_ int fd)	420	fd_change (EV_P_ int fd)
295	{	421	{
296	if (anfds [fd].reify \|\| fdchangecnt < 0)	422	if (anfds [fd].reify)
297	return;	423	return;
298		424
299	anfds [fd].reify = 1;	425	anfds [fd].reify = 1;
300		426
301	++fdchangecnt;	427	++fdchangecnt;
302	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
303	fdchanges [fdchangecnt - 1] = fd;	429	fdchanges [fdchangecnt - 1] = fd;
304	}	430	}
305		431
306	static void	432	static void
307	fd_kill (EV_P_ int fd)	433	fd_kill (EV_P_ int fd)
…		…
309	struct ev_io *w;	435	struct ev_io *w;
310		436
311	while ((w = (struct ev_io *)anfds [fd].head))	437	while ((w = (struct ev_io *)anfds [fd].head))
312	{	438	{
313	ev_io_stop (EV_A_ w);	439	ev_io_stop (EV_A_ w);
314	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	440	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
315	}	441	}
		442	}
		443
		444	static int
		445	fd_valid (int fd)
		446	{
		447	#ifdef WIN32
		448	return !!win32_get_osfhandle (fd);
		449	#else
		450	return fcntl (fd, F_GETFD) != -1;
		451	#endif
316	}	452	}
317		453
318	/* called on EBADF to verify fds */	454	/* called on EBADF to verify fds */
319	static void	455	static void
320	fd_ebadf (EV_P)	456	fd_ebadf (EV_P)
321	{	457	{
322	int fd;	458	int fd;
323		459
324	for (fd = 0; fd < anfdmax; ++fd)	460	for (fd = 0; fd < anfdmax; ++fd)
325	if (anfds [fd].events)	461	if (anfds [fd].events)
326	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	462	if (!fd_valid (fd) == -1 && errno == EBADF)
327	fd_kill (EV_A_ fd);	463	fd_kill (EV_A_ fd);
328	}	464	}
329		465
330	/* called on ENOMEM in select/poll to kill some fds and retry */	466	/* called on ENOMEM in select/poll to kill some fds and retry */
331	static void	467	static void
332	fd_enomem (EV_P)	468	fd_enomem (EV_P)
333	{	469	{
334	int fd = anfdmax;	470	int fd;
335		471
336	while (fd--)	472	for (fd = anfdmax; fd--; )
337	if (anfds [fd].events)	473	if (anfds [fd].events)
338	{	474	{
339	close (fd);
340	fd_kill (EV_A_ fd);	475	fd_kill (EV_A_ fd);
341	return;	476	return;
342	}	477	}
343	}	478	}
344		479
345	/* susually called after fork if method needs to re-arm all fds from scratch */	480	/* usually called after fork if method needs to re-arm all fds from scratch */
346	static void	481	static void
347	fd_rearm_all (EV_P)	482	fd_rearm_all (EV_P)
348	{	483	{
349	int fd;	484	int fd;
350		485
351	/* this should be highly optimised to not do anything but set a flag */	486	/* this should be highly optimised to not do anything but set a flag */
352	for (fd = 0; fd < anfdmax; ++fd)	487	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	488	if (anfds [fd].events)
354	{	489	{
355	anfds [fd].events = 0;	490	anfds [fd].events = 0;
356	fd_change (fd);	491	fd_change (EV_A_ fd);
357	}	492	}
358	}	493	}
359		494
360	/*****************************************************************************/	495	/*****************************************************************************/
361		496
…		…
365	WT w = heap [k];	500	WT w = heap [k];
366		501
367	while (k && heap [k >> 1]->at > w->at)	502	while (k && heap [k >> 1]->at > w->at)
368	{	503	{
369	heap [k] = heap [k >> 1];	504	heap [k] = heap [k >> 1];
370	heap [k]->active = k + 1;	505	((W)heap [k])->active = k + 1;
371	k >>= 1;	506	k >>= 1;
372	}	507	}
373		508
374	heap [k] = w;	509	heap [k] = w;
375	heap [k]->active = k + 1;	510	((W)heap [k])->active = k + 1;
376		511
377	}	512	}
378		513
379	static void	514	static void
380	downheap (WT *heap, int N, int k)	515	downheap (WT *heap, int N, int k)
…		…
390		525
391	if (w->at <= heap [j]->at)	526	if (w->at <= heap [j]->at)
392	break;	527	break;
393		528
394	heap [k] = heap [j];	529	heap [k] = heap [j];
395	heap [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
396	k = j;	531	k = j;
397	}	532	}
398		533
399	heap [k] = w;	534	heap [k] = w;
400	heap [k]->active = k + 1;	535	((W)heap [k])->active = k + 1;
		536	}
		537
		538	inline void
		539	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		540	{
		541	ev_tstamp old_at = heap [k]->at;
		542	heap [k]->at = at;
		543
		544	if (old_at < at)
		545	downheap (heap, N, k);
		546	else
		547	upheap (heap, k);
401	}	548	}
402		549
403	/*****************************************************************************/	550	/*****************************************************************************/
404		551
405	typedef struct	552	typedef struct
406	{	553	{
407	struct ev_watcher_list *head;	554	WL head;
408	sig_atomic_t volatile gotsig;	555	sig_atomic_t volatile gotsig;
409	} ANSIG;	556	} ANSIG;
410		557
411	static ANSIG *signals;	558	static ANSIG *signals;
412	static int signalmax;	559	static int signalmax;
413		560
414	static int sigpipe [2];	561	static int sigpipe [2];
415	static sig_atomic_t volatile gotsig;	562	static sig_atomic_t volatile gotsig;
		563	static struct ev_io sigev;
416		564
417	static void	565	static void
418	signals_init (ANSIG *base, int count)	566	signals_init (ANSIG *base, int count)
419	{	567	{
420	while (count--)	568	while (count--)
…		…
427	}	575	}
428		576
429	static void	577	static void
430	sighandler (int signum)	578	sighandler (int signum)
431	{	579	{
		580	#if WIN32
		581	signal (signum, sighandler);
		582	#endif
		583
432	signals [signum - 1].gotsig = 1;	584	signals [signum - 1].gotsig = 1;
433		585
434	if (!gotsig)	586	if (!gotsig)
435	{	587	{
436	int old_errno = errno;	588	int old_errno = errno;
437	gotsig = 1;	589	gotsig = 1;
		590	#ifdef WIN32
		591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		592	#else
438	write (sigpipe [1], &signum, 1);	593	write (sigpipe [1], &signum, 1);
		594	#endif
439	errno = old_errno;	595	errno = old_errno;
440	}	596	}
441	}	597	}
442		598
		599	void
		600	ev_feed_signal_event (EV_P_ int signum)
		601	{
		602	WL w;
		603
		604	#if EV_MULTIPLICITY
		605	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		606	#endif
		607
		608	--signum;
		609
		610	if (signum < 0 \|\| signum >= signalmax)
		611	return;
		612
		613	signals [signum].gotsig = 0;
		614
		615	for (w = signals [signum].head; w; w = w->next)
		616	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		617	}
		618
443	static void	619	static void
444	sigcb (EV_P_ struct ev_io *iow, int revents)	620	sigcb (EV_P_ struct ev_io *iow, int revents)
445	{	621	{
446	struct ev_watcher_list *w;
447	int signum;	622	int signum;
448		623
		624	#ifdef WIN32
		625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		626	#else
449	read (sigpipe [0], &revents, 1);	627	read (sigpipe [0], &revents, 1);
		628	#endif
450	gotsig = 0;	629	gotsig = 0;
451		630
452	for (signum = signalmax; signum--; )	631	for (signum = signalmax; signum--; )
453	if (signals [signum].gotsig)	632	if (signals [signum].gotsig)
454	{	633	ev_feed_signal_event (EV_A_ signum + 1);
455	signals [signum].gotsig = 0;
456
457	for (w = signals [signum].head; w; w = w->next)
458	event (EV_A_ (W)w, EV_SIGNAL);
459	}
460	}	634	}
461		635
462	static void	636	static void
463	siginit (EV_P)	637	siginit (EV_P)
464	{	638	{
…		…
476	ev_unref (EV_A); /* child watcher should not keep loop alive */	650	ev_unref (EV_A); /* child watcher should not keep loop alive */
477	}	651	}
478		652
479	/*****************************************************************************/	653	/*****************************************************************************/
480		654
		655	static struct ev_child *childs [PID_HASHSIZE];
		656
481	#ifndef WIN32	657	#ifndef WIN32
		658
		659	static struct ev_signal childev;
482		660
483	#ifndef WCONTINUED	661	#ifndef WCONTINUED
484	# define WCONTINUED 0	662	# define WCONTINUED 0
485	#endif	663	#endif
486		664
…		…
490	struct ev_child *w;	668	struct ev_child *w;
491		669
492	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	670	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
493	if (w->pid == pid \|\| !w->pid)	671	if (w->pid == pid \|\| !w->pid)
494	{	672	{
495	w->priority = sw->priority; /* need to do it now */	673	ev_priority (w) = ev_priority (sw); /* need to do it now */
496	w->rpid = pid;	674	w->rpid = pid;
497	w->rstatus = status;	675	w->rstatus = status;
498	event (EV_A_ (W)w, EV_CHILD);	676	ev_feed_event (EV_A_ (W)w, EV_CHILD);
499	}	677	}
500	}	678	}
501		679
502	static void	680	static void
503	childcb (EV_P_ struct ev_signal *sw, int revents)	681	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
505	int pid, status;	683	int pid, status;
506		684
507	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	685	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
508	{	686	{
509	/* make sure we are called again until all childs have been reaped */	687	/* make sure we are called again until all childs have been reaped */
510	event (EV_A_ (W)sw, EV_SIGNAL);	688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511		689
512	child_reap (EV_A_ sw, pid, pid, status);	690	child_reap (EV_A_ sw, pid, pid, status);
513	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	691	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514	}	692	}
515	}	693	}
…		…
522	# include "ev_kqueue.c"	700	# include "ev_kqueue.c"
523	#endif	701	#endif
524	#if EV_USE_EPOLL	702	#if EV_USE_EPOLL
525	# include "ev_epoll.c"	703	# include "ev_epoll.c"
526	#endif	704	#endif
527	#if EV_USEV_POLL	705	#if EV_USE_POLL
528	# include "ev_poll.c"	706	# include "ev_poll.c"
529	#endif	707	#endif
530	#if EV_USE_SELECT	708	#if EV_USE_SELECT
531	# include "ev_select.c"	709	# include "ev_select.c"
532	#endif	710	#endif
…		…
572	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573	have_monotonic = 1;	751	have_monotonic = 1;
574	}	752	}
575	#endif	753	#endif
576		754
577	rt_now = ev_time ();	755	ev_rt_now = ev_time ();
578	mn_now = get_clock ();	756	mn_now = get_clock ();
579	now_floor = mn_now;	757	now_floor = mn_now;
580	rtmn_diff = rt_now - mn_now;	758	rtmn_diff = ev_rt_now - mn_now;
581		759
582	if (methods == EVMETHOD_AUTO)	760	if (methods == EVMETHOD_AUTO)
583	if (!enable_secure () && getenv ("LIBEV_METHODS"))	761	if (!enable_secure () && getenv ("LIBEV_METHODS"))
584	methods = atoi (getenv ("LIBEV_METHODS"));	762	methods = atoi (getenv ("LIBEV_METHODS"));
585	else	763	else
586	methods = EVMETHOD_ANY;	764	methods = EVMETHOD_ANY;
587		765
588	method = 0;	766	method = 0;
		767	#if EV_USE_WIN32
		768	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		769	#endif
589	#if EV_USE_KQUEUE	770	#if EV_USE_KQUEUE
590	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
591	#endif	772	#endif
592	#if EV_USE_EPOLL	773	#if EV_USE_EPOLL
593	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
594	#endif	775	#endif
595	#if EV_USEV_POLL	776	#if EV_USE_POLL
596	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
597	#endif	778	#endif
598	#if EV_USE_SELECT	779	#if EV_USE_SELECT
599	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
600	#endif	781	#endif
		782
		783	ev_init (&sigev, sigcb);
		784	ev_set_priority (&sigev, EV_MAXPRI);
601	}	785	}
602	}	786	}
603		787
604	void	788	void
605	loop_destroy (EV_P)	789	loop_destroy (EV_P)
606	{	790	{
		791	int i;
		792
		793	#if EV_USE_WIN32
		794	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		795	#endif
607	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
608	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	797	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609	#endif	798	#endif
610	#if EV_USE_EPOLL	799	#if EV_USE_EPOLL
611	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	800	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612	#endif	801	#endif
613	#if EV_USEV_POLL	802	#if EV_USE_POLL
614	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	803	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615	#endif	804	#endif
616	#if EV_USE_SELECT	805	#if EV_USE_SELECT
617	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	806	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618	#endif	807	#endif
619		808
		809	for (i = NUMPRI; i--; )
		810	array_free (pending, [i]);
		811
		812	/* have to use the microsoft-never-gets-it-right macro */
		813	array_free_microshit (fdchange);
		814	array_free_microshit (timer);
		815	#if EV_PERIODICS
		816	array_free_microshit (periodic);
		817	#endif
		818	array_free_microshit (idle);
		819	array_free_microshit (prepare);
		820	array_free_microshit (check);
		821
620	method = 0;	822	method = 0;
621	/TODO/
622	}	823	}
623		824
624	void	825	static void
625	loop_fork (EV_P)	826	loop_fork (EV_P)
626	{	827	{
627	/TODO/
628	#if EV_USE_EPOLL	828	#if EV_USE_EPOLL
629	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	829	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630	#endif	830	#endif
631	#if EV_USE_KQUEUE	831	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	832	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
633	#endif	833	#endif
		834
		835	if (ev_is_active (&sigev))
		836	{
		837	/* default loop */
		838
		839	ev_ref (EV_A);
		840	ev_io_stop (EV_A_ &sigev);
		841	close (sigpipe [0]);
		842	close (sigpipe [1]);
		843
		844	while (pipe (sigpipe))
		845	syserr ("(libev) error creating pipe");
		846
		847	siginit (EV_A);
		848	}
		849
		850	postfork = 0;
634	}	851	}
635		852
636	#if EV_MULTIPLICITY	853	#if EV_MULTIPLICITY
637	struct ev_loop *	854	struct ev_loop *
638	ev_loop_new (int methods)	855	ev_loop_new (int methods)
639	{	856	{
640	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	857	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		858
		859	memset (loop, 0, sizeof (struct ev_loop));
641		860
642	loop_init (EV_A_ methods);	861	loop_init (EV_A_ methods);
643		862
644	if (ev_methods (EV_A))	863	if (ev_method (EV_A))
645	return loop;	864	return loop;
646		865
647	return 0;	866	return 0;
648	}	867	}
649		868
650	void	869	void
651	ev_loop_destroy (EV_P)	870	ev_loop_destroy (EV_P)
652	{	871	{
653	loop_destroy (EV_A);	872	loop_destroy (EV_A);
654	free (loop);	873	ev_free (loop);
655	}	874	}
656		875
657	void	876	void
658	ev_loop_fork (EV_P)	877	ev_loop_fork (EV_P)
659	{	878	{
660	loop_fork (EV_A);	879	postfork = 1;
661	}	880	}
662		881
663	#endif	882	#endif
664		883
665	#if EV_MULTIPLICITY	884	#if EV_MULTIPLICITY
666	struct ev_loop default_loop_struct;
667	static struct ev_loop *default_loop;
668
669	struct ev_loop *	885	struct ev_loop *
670	#else	886	#else
671	static int default_loop;
672
673	int	887	int
674	#endif	888	#endif
675	ev_default_loop (int methods)	889	ev_default_loop (int methods)
676	{	890	{
677	if (sigpipe [0] == sigpipe [1])	891	if (sigpipe [0] == sigpipe [1])
…		…
688		902
689	loop_init (EV_A_ methods);	903	loop_init (EV_A_ methods);
690		904
691	if (ev_method (EV_A))	905	if (ev_method (EV_A))
692	{	906	{
693	ev_watcher_init (&sigev, sigcb);
694	ev_set_priority (&sigev, EV_MAXPRI);
695	siginit (EV_A);	907	siginit (EV_A);
696		908
697	#ifndef WIN32	909	#ifndef WIN32
698	ev_signal_init (&childev, childcb, SIGCHLD);	910	ev_signal_init (&childev, childcb, SIGCHLD);
699	ev_set_priority (&childev, EV_MAXPRI);	911	ev_set_priority (&childev, EV_MAXPRI);
…		…
713	{	925	{
714	#if EV_MULTIPLICITY	926	#if EV_MULTIPLICITY
715	struct ev_loop *loop = default_loop;	927	struct ev_loop *loop = default_loop;
716	#endif	928	#endif
717		929
		930	#ifndef WIN32
718	ev_ref (EV_A); /* child watcher */	931	ev_ref (EV_A); /* child watcher */
719	ev_signal_stop (EV_A_ &childev);	932	ev_signal_stop (EV_A_ &childev);
		933	#endif
720		934
721	ev_ref (EV_A); /* signal watcher */	935	ev_ref (EV_A); /* signal watcher */
722	ev_io_stop (EV_A_ &sigev);	936	ev_io_stop (EV_A_ &sigev);
723		937
724	close (sigpipe [0]); sigpipe [0] = 0;	938	close (sigpipe [0]); sigpipe [0] = 0;
…		…
726		940
727	loop_destroy (EV_A);	941	loop_destroy (EV_A);
728	}	942	}
729		943
730	void	944	void
731	ev_default_fork (EV_P)	945	ev_default_fork (void)
732	{	946	{
733	loop_fork (EV_A);	947	#if EV_MULTIPLICITY
		948	struct ev_loop *loop = default_loop;
		949	#endif
734		950
735	ev_io_stop (EV_A_ &sigev);	951	if (method)
736	close (sigpipe [0]);	952	postfork = 1;
737	close (sigpipe [1]);
738	pipe (sigpipe);
739
740	ev_ref (EV_A); /* signal watcher */
741	siginit (EV_A);
742	}	953	}
743		954
744	/*****************************************************************************/	955	/*****************************************************************************/
		956
		957	static int
		958	any_pending (EV_P)
		959	{
		960	int pri;
		961
		962	for (pri = NUMPRI; pri--; )
		963	if (pendingcnt [pri])
		964	return 1;
		965
		966	return 0;
		967	}
745		968
746	static void	969	static void
747	call_pending (EV_P)	970	call_pending (EV_P)
748	{	971	{
749	int pri;	972	int pri;
…		…
754	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755		978
756	if (p->w)	979	if (p->w)
757	{	980	{
758	p->w->pending = 0;	981	p->w->pending = 0;
759	p->w->cb (EV_A_ p->w, p->events);	982	EV_CB_INVOKE (p->w, p->events);
760	}	983	}
761	}	984	}
762	}	985	}
763		986
764	static void	987	static void
765	timers_reify (EV_P)	988	timers_reify (EV_P)
766	{	989	{
767	while (timercnt && timers [0]->at <= mn_now)	990	while (timercnt && ((WT)timers [0])->at <= mn_now)
768	{	991	{
769	struct ev_timer *w = timers [0];	992	struct ev_timer *w = timers [0];
		993
		994	assert (("inactive timer on timer heap detected", ev_is_active (w)));
770		995
771	/* first reschedule or stop timer */	996	/* first reschedule or stop timer */
772	if (w->repeat)	997	if (w->repeat)
773	{	998	{
774	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	999	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1000
775	w->at = mn_now + w->repeat;	1001	((WT)w)->at += w->repeat;
		1002	if (((WT)w)->at < mn_now)
		1003	((WT)w)->at = mn_now;
		1004
776	downheap ((WT *)timers, timercnt, 0);	1005	downheap ((WT *)timers, timercnt, 0);
777	}	1006	}
778	else	1007	else
779	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1008	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780		1009
781	event (EV_A_ (W)w, EV_TIMEOUT);	1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782	}	1011	}
783	}	1012	}
784		1013
		1014	#if EV_PERIODICS
785	static void	1015	static void
786	periodics_reify (EV_P)	1016	periodics_reify (EV_P)
787	{	1017	{
788	while (periodiccnt && periodics [0]->at <= rt_now)	1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789	{	1019	{
790	struct ev_periodic *w = periodics [0];	1020	struct ev_periodic *w = periodics [0];
791		1021
		1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1023
792	/* first reschedule or stop timer */	1024	/* first reschedule or stop timer */
793	if (w->interval)	1025	if (w->reschedule_cb)
794	{	1026	{
		1027	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1028
		1029	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1030	downheap ((WT *)periodics, periodiccnt, 0);
		1031	}
		1032	else if (w->interval)
		1033	{
795	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1034	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
796	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1035	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
797	downheap ((WT *)periodics, periodiccnt, 0);	1036	downheap ((WT *)periodics, periodiccnt, 0);
798	}	1037	}
799	else	1038	else
800	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801		1040
802	event (EV_A_ (W)w, EV_PERIODIC);	1041	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803	}	1042	}
804	}	1043	}
805		1044
806	static void	1045	static void
807	periodics_reschedule (EV_P)	1046	periodics_reschedule (EV_P)
…		…
811	/* adjust periodics after time jump */	1050	/* adjust periodics after time jump */
812	for (i = 0; i < periodiccnt; ++i)	1051	for (i = 0; i < periodiccnt; ++i)
813	{	1052	{
814	struct ev_periodic *w = periodics [i];	1053	struct ev_periodic *w = periodics [i];
815		1054
		1055	if (w->reschedule_cb)
		1056	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816	if (w->interval)	1057	else if (w->interval)
817	{
818	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1058	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
819
820	if (fabs (diff) >= 1e-4)
821	{
822	ev_periodic_stop (EV_A_ w);
823	ev_periodic_start (EV_A_ w);
824
825	i = 0; /* restart loop, inefficient, but time jumps should be rare */
826	}
827	}
828	}	1059	}
		1060
		1061	/* now rebuild the heap */
		1062	for (i = periodiccnt >> 1; i--; )
		1063	downheap ((WT *)periodics, periodiccnt, i);
829	}	1064	}
		1065	#endif
830		1066
831	inline int	1067	inline int
832	time_update_monotonic (EV_P)	1068	time_update_monotonic (EV_P)
833	{	1069	{
834	mn_now = get_clock ();	1070	mn_now = get_clock ();
835		1071
836	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1072	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837	{	1073	{
838	rt_now = rtmn_diff + mn_now;	1074	ev_rt_now = rtmn_diff + mn_now;
839	return 0;	1075	return 0;
840	}	1076	}
841	else	1077	else
842	{	1078	{
843	now_floor = mn_now;	1079	now_floor = mn_now;
844	rt_now = ev_time ();	1080	ev_rt_now = ev_time ();
845	return 1;	1081	return 1;
846	}	1082	}
847	}	1083	}
848		1084
849	static void	1085	static void
…		…
858	{	1094	{
859	ev_tstamp odiff = rtmn_diff;	1095	ev_tstamp odiff = rtmn_diff;
860		1096
861	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1097	for (i = 4; --i; ) /* loop a few times, before making important decisions */
862	{	1098	{
863	rtmn_diff = rt_now - mn_now;	1099	rtmn_diff = ev_rt_now - mn_now;
864		1100
865	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1101	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866	return; /* all is well */	1102	return; /* all is well */
867		1103
868	rt_now = ev_time ();	1104	ev_rt_now = ev_time ();
869	mn_now = get_clock ();	1105	mn_now = get_clock ();
870	now_floor = mn_now;	1106	now_floor = mn_now;
871	}	1107	}
872		1108
		1109	# if EV_PERIODICS
873	periodics_reschedule (EV_A);	1110	periodics_reschedule (EV_A);
		1111	# endif
874	/* no timer adjustment, as the monotonic clock doesn't jump */	1112	/* no timer adjustment, as the monotonic clock doesn't jump */
875	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1113	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876	}	1114	}
877	}	1115	}
878	else	1116	else
879	#endif	1117	#endif
880	{	1118	{
881	rt_now = ev_time ();	1119	ev_rt_now = ev_time ();
882		1120
883	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1121	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
884	{	1122	{
		1123	#if EV_PERIODICS
885	periodics_reschedule (EV_A);	1124	periodics_reschedule (EV_A);
		1125	#endif
886		1126
887	/* adjust timers. this is easy, as the offset is the same for all */	1127	/* adjust timers. this is easy, as the offset is the same for all */
888	for (i = 0; i < timercnt; ++i)	1128	for (i = 0; i < timercnt; ++i)
889	timers [i]->at += rt_now - mn_now;	1129	((WT)timers [i])->at += ev_rt_now - mn_now;
890	}	1130	}
891		1131
892	mn_now = rt_now;	1132	mn_now = ev_rt_now;
893	}	1133	}
894	}	1134	}
895		1135
896	void	1136	void
897	ev_ref (EV_P)	1137	ev_ref (EV_P)
…		…
920	{	1160	{
921	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922	call_pending (EV_A);	1162	call_pending (EV_A);
923	}	1163	}
924		1164
		1165	/* we might have forked, so reify kernel state if necessary */
		1166	if (expect_false (postfork))
		1167	loop_fork (EV_A);
		1168
925	/* update fd-related kernel structures */	1169	/* update fd-related kernel structures */
926	fd_reify (EV_A);	1170	fd_reify (EV_A);
927		1171
928	/* calculate blocking time */	1172	/* calculate blocking time */
929		1173
930	/* we only need this for !monotonic clockor timers, but as we basically	1174	/* we only need this for !monotonic clock or timers, but as we basically
931	always have timers, we just calculate it always */	1175	always have timers, we just calculate it always */
932	#if EV_USE_MONOTONIC	1176	#if EV_USE_MONOTONIC
933	if (expect_true (have_monotonic))	1177	if (expect_true (have_monotonic))
934	time_update_monotonic (EV_A);	1178	time_update_monotonic (EV_A);
935	else	1179	else
936	#endif	1180	#endif
937	{	1181	{
938	rt_now = ev_time ();	1182	ev_rt_now = ev_time ();
939	mn_now = rt_now;	1183	mn_now = ev_rt_now;
940	}	1184	}
941		1185
942	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1186	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
943	block = 0.;	1187	block = 0.;
944	else	1188	else
945	{	1189	{
946	block = MAX_BLOCKTIME;	1190	block = MAX_BLOCKTIME;
947		1191
948	if (timercnt)	1192	if (timercnt)
949	{	1193	{
950	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951	if (block > to) block = to;	1195	if (block > to) block = to;
952	}	1196	}
953		1197
		1198	#if EV_PERIODICS
954	if (periodiccnt)	1199	if (periodiccnt)
955	{	1200	{
956	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957	if (block > to) block = to;	1202	if (block > to) block = to;
958	}	1203	}
		1204	#endif
959		1205
960	if (block < 0.) block = 0.;	1206	if (block < 0.) block = 0.;
961	}	1207	}
962		1208
963	method_poll (EV_A_ block);	1209	method_poll (EV_A_ block);
964		1210
965	/* update rt_now, do magic */	1211	/* update ev_rt_now, do magic */
966	time_update (EV_A);	1212	time_update (EV_A);
967		1213
968	/* queue pending timers and reschedule them */	1214	/* queue pending timers and reschedule them */
969	timers_reify (EV_A); /* relative timers called last */	1215	timers_reify (EV_A); /* relative timers called last */
		1216	#if EV_PERIODICS
970	periodics_reify (EV_A); /* absolute timers called first */	1217	periodics_reify (EV_A); /* absolute timers called first */
		1218	#endif
971		1219
972	/* queue idle watchers unless io or timers are pending */	1220	/* queue idle watchers unless io or timers are pending */
973	if (!pendingcnt)	1221	if (idlecnt && !any_pending (EV_A))
974	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975		1223
976	/* queue check watchers, to be executed first */	1224	/* queue check watchers, to be executed first */
977	if (checkcnt)	1225	if (checkcnt)
978	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1053	return;	1301	return;
1054		1302
1055	assert (("ev_io_start called with negative fd", fd >= 0));	1303	assert (("ev_io_start called with negative fd", fd >= 0));
1056		1304
1057	ev_start (EV_A_ (W)w, 1);	1305	ev_start (EV_A_ (W)w, 1);
1058	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1306	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1307	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060		1308
1061	fd_change (EV_A_ fd);	1309	fd_change (EV_A_ fd);
1062	}	1310	}
1063		1311
…		…
1066	{	1314	{
1067	ev_clear_pending (EV_A_ (W)w);	1315	ev_clear_pending (EV_A_ (W)w);
1068	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
1069	return;	1317	return;
1070		1318
		1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1320
1071	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072	ev_stop (EV_A_ (W)w);	1322	ev_stop (EV_A_ (W)w);
1073		1323
1074	fd_change (EV_A_ w->fd);	1324	fd_change (EV_A_ w->fd);
1075	}	1325	}
…		…
1078	ev_timer_start (EV_P_ struct ev_timer *w)	1328	ev_timer_start (EV_P_ struct ev_timer *w)
1079	{	1329	{
1080	if (ev_is_active (w))	1330	if (ev_is_active (w))
1081	return;	1331	return;
1082		1332
1083	w->at += mn_now;	1333	((WT)w)->at += mn_now;
1084		1334
1085	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1335	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1086		1336
1087	ev_start (EV_A_ (W)w, ++timercnt);	1337	ev_start (EV_A_ (W)w, ++timercnt);
1088	array_needsize (timers, timermax, timercnt, );	1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1089	timers [timercnt - 1] = w;	1339	timers [timercnt - 1] = w;
1090	upheap ((WT *)timers, timercnt - 1);	1340	upheap ((WT *)timers, timercnt - 1);
		1341
		1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091	}	1343	}
1092		1344
1093	void	1345	void
1094	ev_timer_stop (EV_P_ struct ev_timer *w)	1346	ev_timer_stop (EV_P_ struct ev_timer *w)
1095	{	1347	{
1096	ev_clear_pending (EV_A_ (W)w);	1348	ev_clear_pending (EV_A_ (W)w);
1097	if (!ev_is_active (w))	1349	if (!ev_is_active (w))
1098	return;	1350	return;
1099		1351
		1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1353
1100	if (w->active < timercnt--)	1354	if (((W)w)->active < timercnt--)
1101	{	1355	{
1102	timers [w->active - 1] = timers [timercnt];	1356	timers [((W)w)->active - 1] = timers [timercnt];
1103	downheap ((WT *)timers, timercnt, w->active - 1);	1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104	}	1358	}
1105		1359
1106	w->at = w->repeat;	1360	((WT)w)->at -= mn_now;
1107		1361
1108	ev_stop (EV_A_ (W)w);	1362	ev_stop (EV_A_ (W)w);
1109	}	1363	}
1110		1364
1111	void	1365	void
1112	ev_timer_again (EV_P_ struct ev_timer *w)	1366	ev_timer_again (EV_P_ struct ev_timer *w)
1113	{	1367	{
1114	if (ev_is_active (w))	1368	if (ev_is_active (w))
1115	{	1369	{
1116	if (w->repeat)	1370	if (w->repeat)
1117	{
1118	w->at = mn_now + w->repeat;
1119	downheap ((WT *)timers, timercnt, w->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
1120	}
1121	else	1372	else
1122	ev_timer_stop (EV_A_ w);	1373	ev_timer_stop (EV_A_ w);
1123	}	1374	}
1124	else if (w->repeat)	1375	else if (w->repeat)
1125	ev_timer_start (EV_A_ w);	1376	ev_timer_start (EV_A_ w);
1126	}	1377	}
1127		1378
		1379	#if EV_PERIODICS
1128	void	1380	void
1129	ev_periodic_start (EV_P_ struct ev_periodic *w)	1381	ev_periodic_start (EV_P_ struct ev_periodic *w)
1130	{	1382	{
1131	if (ev_is_active (w))	1383	if (ev_is_active (w))
1132	return;	1384	return;
1133		1385
		1386	if (w->reschedule_cb)
		1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1388	else if (w->interval)
		1389	{
1134	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1390	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1135
1136	/* this formula differs from the one in periodic_reify because we do not always round up */	1391	/* this formula differs from the one in periodic_reify because we do not always round up */
1137	if (w->interval)
1138	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1392	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1393	}
1139		1394
1140	ev_start (EV_A_ (W)w, ++periodiccnt);	1395	ev_start (EV_A_ (W)w, ++periodiccnt);
1141	array_needsize (periodics, periodicmax, periodiccnt, );	1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1142	periodics [periodiccnt - 1] = w;	1397	periodics [periodiccnt - 1] = w;
1143	upheap ((WT *)periodics, periodiccnt - 1);	1398	upheap ((WT *)periodics, periodiccnt - 1);
		1399
		1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144	}	1401	}
1145		1402
1146	void	1403	void
1147	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148	{	1405	{
1149	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1150	if (!ev_is_active (w))	1407	if (!ev_is_active (w))
1151	return;	1408	return;
1152		1409
		1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1411
1153	if (w->active < periodiccnt--)	1412	if (((W)w)->active < periodiccnt--)
1154	{	1413	{
1155	periodics [w->active - 1] = periodics [periodiccnt];	1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157	}	1416	}
1158		1417
1159	ev_stop (EV_A_ (W)w);	1418	ev_stop (EV_A_ (W)w);
1160	}	1419	}
1161		1420
1162	void	1421	void
		1422	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1423	{
		1424	/* TODO: use adjustheap and recalculation */
		1425	ev_periodic_stop (EV_A_ w);
		1426	ev_periodic_start (EV_A_ w);
		1427	}
		1428	#endif
		1429
		1430	void
1163	ev_idle_start (EV_P_ struct ev_idle *w)	1431	ev_idle_start (EV_P_ struct ev_idle *w)
1164	{	1432	{
1165	if (ev_is_active (w))	1433	if (ev_is_active (w))
1166	return;	1434	return;
1167		1435
1168	ev_start (EV_A_ (W)w, ++idlecnt);	1436	ev_start (EV_A_ (W)w, ++idlecnt);
1169	array_needsize (idles, idlemax, idlecnt, );	1437	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1170	idles [idlecnt - 1] = w;	1438	idles [idlecnt - 1] = w;
1171	}	1439	}
1172		1440
1173	void	1441	void
1174	ev_idle_stop (EV_P_ struct ev_idle *w)	1442	ev_idle_stop (EV_P_ struct ev_idle *w)
1175	{	1443	{
1176	ev_clear_pending (EV_A_ (W)w);	1444	ev_clear_pending (EV_A_ (W)w);
1177	if (ev_is_active (w))	1445	if (ev_is_active (w))
1178	return;	1446	return;
1179		1447
1180	idles [w->active - 1] = idles [--idlecnt];	1448	idles [((W)w)->active - 1] = idles [--idlecnt];
1181	ev_stop (EV_A_ (W)w);	1449	ev_stop (EV_A_ (W)w);
1182	}	1450	}
1183		1451
1184	void	1452	void
1185	ev_prepare_start (EV_P_ struct ev_prepare *w)	1453	ev_prepare_start (EV_P_ struct ev_prepare *w)
1186	{	1454	{
1187	if (ev_is_active (w))	1455	if (ev_is_active (w))
1188	return;	1456	return;
1189		1457
1190	ev_start (EV_A_ (W)w, ++preparecnt);	1458	ev_start (EV_A_ (W)w, ++preparecnt);
1191	array_needsize (prepares, preparemax, preparecnt, );	1459	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1192	prepares [preparecnt - 1] = w;	1460	prepares [preparecnt - 1] = w;
1193	}	1461	}
1194		1462
1195	void	1463	void
1196	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1464	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1197	{	1465	{
1198	ev_clear_pending (EV_A_ (W)w);	1466	ev_clear_pending (EV_A_ (W)w);
1199	if (ev_is_active (w))	1467	if (ev_is_active (w))
1200	return;	1468	return;
1201		1469
1202	prepares [w->active - 1] = prepares [--preparecnt];	1470	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1203	ev_stop (EV_A_ (W)w);	1471	ev_stop (EV_A_ (W)w);
1204	}	1472	}
1205		1473
1206	void	1474	void
1207	ev_check_start (EV_P_ struct ev_check *w)	1475	ev_check_start (EV_P_ struct ev_check *w)
1208	{	1476	{
1209	if (ev_is_active (w))	1477	if (ev_is_active (w))
1210	return;	1478	return;
1211		1479
1212	ev_start (EV_A_ (W)w, ++checkcnt);	1480	ev_start (EV_A_ (W)w, ++checkcnt);
1213	array_needsize (checks, checkmax, checkcnt, );	1481	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1214	checks [checkcnt - 1] = w;	1482	checks [checkcnt - 1] = w;
1215	}	1483	}
1216		1484
1217	void	1485	void
1218	ev_check_stop (EV_P_ struct ev_check *w)	1486	ev_check_stop (EV_P_ struct ev_check *w)
1219	{	1487	{
1220	ev_clear_pending (EV_A_ (W)w);	1488	ev_clear_pending (EV_A_ (W)w);
1221	if (ev_is_active (w))	1489	if (!ev_is_active (w))
1222	return;	1490	return;
1223		1491
1224	checks [w->active - 1] = checks [--checkcnt];	1492	checks [((W)w)->active - 1] = checks [--checkcnt];
1225	ev_stop (EV_A_ (W)w);	1493	ev_stop (EV_A_ (W)w);
1226	}	1494	}
1227		1495
1228	#ifndef SA_RESTART	1496	#ifndef SA_RESTART
1229	# define SA_RESTART 0	1497	# define SA_RESTART 0
…		…
1239	return;	1507	return;
1240		1508
1241	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1509	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1242		1510
1243	ev_start (EV_A_ (W)w, 1);	1511	ev_start (EV_A_ (W)w, 1);
1244	array_needsize (signals, signalmax, w->signum, signals_init);	1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246		1514
1247	if (!w->next)	1515	if (!((WL)w)->next)
1248	{	1516	{
		1517	#if WIN32
		1518	signal (w->signum, sighandler);
		1519	#else
1249	struct sigaction sa;	1520	struct sigaction sa;
1250	sa.sa_handler = sighandler;	1521	sa.sa_handler = sighandler;
1251	sigfillset (&sa.sa_mask);	1522	sigfillset (&sa.sa_mask);
1252	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1523	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1253	sigaction (w->signum, &sa, 0);	1524	sigaction (w->signum, &sa, 0);
		1525	#endif
1254	}	1526	}
1255	}	1527	}
1256		1528
1257	void	1529	void
1258	ev_signal_stop (EV_P_ struct ev_signal *w)	1530	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1283		1555
1284	void	1556	void
1285	ev_child_stop (EV_P_ struct ev_child *w)	1557	ev_child_stop (EV_P_ struct ev_child *w)
1286	{	1558	{
1287	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1560	if (!ev_is_active (w))
1289	return;	1561	return;
1290		1562
1291	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1293	}	1565	}
…		…
1308	void (cb)(int revents, void arg) = once->cb;	1580	void (cb)(int revents, void arg) = once->cb;
1309	void *arg = once->arg;	1581	void *arg = once->arg;
1310		1582
1311	ev_io_stop (EV_A_ &once->io);	1583	ev_io_stop (EV_A_ &once->io);
1312	ev_timer_stop (EV_A_ &once->to);	1584	ev_timer_stop (EV_A_ &once->to);
1313	free (once);	1585	ev_free (once);
1314		1586
1315	cb (revents, arg);	1587	cb (revents, arg);
1316	}	1588	}
1317		1589
1318	static void	1590	static void
…		…
1328	}	1600	}
1329		1601
1330	void	1602	void
1331	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1603	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1332	{	1604	{
1333	struct ev_once *once = malloc (sizeof (struct ev_once));	1605	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1334		1606
1335	if (!once)	1607	if (!once)
1336	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1337	else	1609	else
1338	{	1610	{
1339	once->cb = cb;	1611	once->cb = cb;
1340	once->arg = arg;	1612	once->arg = arg;
1341		1613
1342	ev_watcher_init (&once->io, once_cb_io);	1614	ev_init (&once->io, once_cb_io);
1343	if (fd >= 0)	1615	if (fd >= 0)
1344	{	1616	{
1345	ev_io_set (&once->io, fd, events);	1617	ev_io_set (&once->io, fd, events);
1346	ev_io_start (EV_A_ &once->io);	1618	ev_io_start (EV_A_ &once->io);
1347	}	1619	}
1348		1620
1349	ev_watcher_init (&once->to, once_cb_to);	1621	ev_init (&once->to, once_cb_to);
1350	if (timeout >= 0.)	1622	if (timeout >= 0.)
1351	{	1623	{
1352	ev_timer_set (&once->to, timeout, 0.);	1624	ev_timer_set (&once->to, timeout, 0.);
1353	ev_timer_start (EV_A_ &once->to);	1625	ev_timer_start (EV_A_ &once->to);
1354	}	1626	}
1355	}	1627	}
1356	}	1628	}
1357		1629
		1630	#ifdef __cplusplus
		1631	}
		1632	#endif
		1633

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Comparing libev/ev.c (file contents): Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs. Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC