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

Comparing libev/ev.c (file contents):
Revision 1.60 by root, Sun Nov 4 18:29:44 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
		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
…		…
90	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
91	#endif	101	#endif
92		102
93	#ifndef EV_USE_KQUEUE	103	#ifndef EV_USE_KQUEUE
94	# 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
95	#endif	115	#endif
96		116
97	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
98	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
99	#endif	119	#endif
…		…
115	#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) */
116	#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) */
117	#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 */
118	/#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 */
119		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
120	#include "ev.h"	143	# include "ev.h"
		144	#endif
121		145
122	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
123	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
124	# define inline inline	148	# define inline inline
125	#else	149	#else
…		…
137	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
138	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
139		163
140	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
141		165
		166	#ifdef WIN32
		167	# include "ev_win32.c"
		168	#endif
		169
142	/*****************************************************************************/	170	/*****************************************************************************/
143		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
144	typedef struct	220	typedef struct
145	{	221	{
146	struct ev_watcher_list *head;	222	WL head;
147	unsigned char events;	223	unsigned char events;
148	unsigned char reify;	224	unsigned char reify;
149	} ANFD;	225	} ANFD;
150		226
151	typedef struct	227	typedef struct
…		…
154	int events;	230	int events;
155	} ANPENDING;	231	} ANPENDING;
156		232
157	#if EV_MULTIPLICITY	233	#if EV_MULTIPLICITY
158		234
159	struct ev_loop	235	struct ev_loop
160	{	236	{
		237	ev_tstamp ev_rt_now;
161	# define VAR(name,decl) decl;	238	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	239	#include "ev_vars.h"
163	};
164	# undef VAR	240	#undef VAR
		241	};
165	# include "ev_wrap.h"	242	#include "ev_wrap.h"
		243
		244	struct ev_loop default_loop_struct;
		245	static struct ev_loop *default_loop;
166		246
167	#else	247	#else
168		248
		249	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	250	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	251	#include "ev_vars.h"
171	# undef VAR	252	#undef VAR
		253
		254	static int default_loop;
172		255
173	#endif	256	#endif
174		257
175	/*****************************************************************************/	258	/*****************************************************************************/
176		259
177	inline ev_tstamp	260	ev_tstamp
178	ev_time (void)	261	ev_time (void)
179	{	262	{
180	#if EV_USE_REALTIME	263	#if EV_USE_REALTIME
181	struct timespec ts;	264	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	265	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	284	#endif
202		285
203	return ev_time ();	286	return ev_time ();
204	}	287	}
205		288
		289	#if EV_MULTIPLICITY
206	ev_tstamp	290	ev_tstamp
207	ev_now (EV_P)	291	ev_now (EV_P)
208	{	292	{
209	return rt_now;	293	return ev_rt_now;
210	}	294	}
		295	#endif
211		296
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	297	#define array_roundsize(type,n) ((n) \| 4 & ~3)
213		298
214	#define array_needsize(base,cur,cnt,init) \	299	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	300	if (expect_false ((cnt) > cur)) \
216	{ \	301	{ \
217	int newcnt = cur; \	302	int newcnt = cur; \
218	do \	303	do \
219	{ \	304	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	305	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	306	} \
222	while ((cnt) > newcnt); \	307	while ((cnt) > newcnt); \
223	\	308	\
224	base = realloc (base, sizeof (base) (newcnt)); \	309	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	310	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	311	cur = newcnt; \
227	}	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;
228		329
229	/*****************************************************************************/	330	/*****************************************************************************/
230		331
231	static void	332	static void
232	anfds_init (ANFD *base, int count)	333	anfds_init (ANFD *base, int count)
…		…
239		340
240	++base;	341	++base;
241	}	342	}
242	}	343	}
243		344
244	static void	345	void
245	event (EV_P_ W w, int events)	346	ev_feed_event (EV_P_ void *w, int revents)
246	{	347	{
		348	W w_ = (W)w;
		349
247	if (w->pending)	350	if (w_->pending)
248	{	351	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	353	return;
251	}	354	}
252		355
253	w->pending = ++pendingcnt [ABSPRI (w)];	356	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	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));
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	360	}
258		361
259	static void	362	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	363	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	364	{
262	int i;	365	int i;
263		366
264	for (i = 0; i < eventcnt; ++i)	367	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	368	ev_feed_event (EV_A_ events [i], type);
266	}	369	}
267		370
268	static void	371	inline void
269	fd_event (EV_P_ int fd, int events)	372	fd_event (EV_P_ int fd, int revents)
270	{	373	{
271	ANFD *anfd = anfds + fd;	374	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	375	struct ev_io *w;
273		376
274	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)
275	{	378	{
276	int ev = w->events & events;	379	int ev = w->events & revents;
277		380
278	if (ev)	381	if (ev)
279	event (EV_A_ (W)w, ev);	382	ev_feed_event (EV_A_ (W)w, ev);
280	}	383	}
		384	}
		385
		386	void
		387	ev_feed_fd_event (EV_P_ int fd, int revents)
		388	{
		389	fd_event (EV_A_ fd, revents);
281	}	390	}
282		391
283	/*****************************************************************************/	392	/*****************************************************************************/
284		393
285	static void	394	static void
…		…
298	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)
299	events \|= w->events;	408	events \|= w->events;
300		409
301	anfd->reify = 0;	410	anfd->reify = 0;
302		411
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	412	method_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	413	anfd->events = events;
307	}
308	}	414	}
309		415
310	fdchangecnt = 0;	416	fdchangecnt = 0;
311	}	417	}
312		418
313	static void	419	static void
314	fd_change (EV_P_ int fd)	420	fd_change (EV_P_ int fd)
315	{	421	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	422	if (anfds [fd].reify)
317	return;	423	return;
318		424
319	anfds [fd].reify = 1;	425	anfds [fd].reify = 1;
320		426
321	++fdchangecnt;	427	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
323	fdchanges [fdchangecnt - 1] = fd;	429	fdchanges [fdchangecnt - 1] = fd;
324	}	430	}
325		431
326	static void	432	static void
327	fd_kill (EV_P_ int fd)	433	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	435	struct ev_io *w;
330		436
331	while ((w = (struct ev_io *)anfds [fd].head))	437	while ((w = (struct ev_io *)anfds [fd].head))
332	{	438	{
333	ev_io_stop (EV_A_ w);	439	ev_io_stop (EV_A_ w);
334	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);
335	}	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
336	}	452	}
337		453
338	/* called on EBADF to verify fds */	454	/* called on EBADF to verify fds */
339	static void	455	static void
340	fd_ebadf (EV_P)	456	fd_ebadf (EV_P)
341	{	457	{
342	int fd;	458	int fd;
343		459
344	for (fd = 0; fd < anfdmax; ++fd)	460	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	461	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	462	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	463	fd_kill (EV_A_ fd);
348	}	464	}
349		465
350	/* 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 */
351	static void	467	static void
352	fd_enomem (EV_P)	468	fd_enomem (EV_P)
353	{	469	{
354	int fd = anfdmax;	470	int fd;
355		471
356	while (fd--)	472	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	473	if (anfds [fd].events)
358	{	474	{
359	close (fd);
360	fd_kill (EV_A_ fd);	475	fd_kill (EV_A_ fd);
361	return;	476	return;
362	}	477	}
363	}	478	}
364		479
365	/* 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 */
366	static void	481	static void
367	fd_rearm_all (EV_P)	482	fd_rearm_all (EV_P)
368	{	483	{
369	int fd;	484	int fd;
370		485
…		…
385	WT w = heap [k];	500	WT w = heap [k];
386		501
387	while (k && heap [k >> 1]->at > w->at)	502	while (k && heap [k >> 1]->at > w->at)
388	{	503	{
389	heap [k] = heap [k >> 1];	504	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	505	((W)heap [k])->active = k + 1;
391	k >>= 1;	506	k >>= 1;
392	}	507	}
393		508
394	heap [k] = w;	509	heap [k] = w;
395	heap [k]->active = k + 1;	510	((W)heap [k])->active = k + 1;
396		511
397	}	512	}
398		513
399	static void	514	static void
400	downheap (WT *heap, int N, int k)	515	downheap (WT *heap, int N, int k)
…		…
410		525
411	if (w->at <= heap [j]->at)	526	if (w->at <= heap [j]->at)
412	break;	527	break;
413		528
414	heap [k] = heap [j];	529	heap [k] = heap [j];
415	heap [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
416	k = j;	531	k = j;
417	}	532	}
418		533
419	heap [k] = w;	534	heap [k] = w;
420	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);
421	}	548	}
422		549
423	/*****************************************************************************/	550	/*****************************************************************************/
424		551
425	typedef struct	552	typedef struct
426	{	553	{
427	struct ev_watcher_list *head;	554	WL head;
428	sig_atomic_t volatile gotsig;	555	sig_atomic_t volatile gotsig;
429	} ANSIG;	556	} ANSIG;
430		557
431	static ANSIG *signals;	558	static ANSIG *signals;
432	static int signalmax;	559	static int signalmax;
…		…
448	}	575	}
449		576
450	static void	577	static void
451	sighandler (int signum)	578	sighandler (int signum)
452	{	579	{
		580	#if WIN32
		581	signal (signum, sighandler);
		582	#endif
		583
453	signals [signum - 1].gotsig = 1;	584	signals [signum - 1].gotsig = 1;
454		585
455	if (!gotsig)	586	if (!gotsig)
456	{	587	{
457	int old_errno = errno;	588	int old_errno = errno;
458	gotsig = 1;	589	gotsig = 1;
		590	#ifdef WIN32
		591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		592	#else
459	write (sigpipe [1], &signum, 1);	593	write (sigpipe [1], &signum, 1);
		594	#endif
460	errno = old_errno;	595	errno = old_errno;
461	}	596	}
462	}	597	}
463		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
464	static void	619	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	620	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	621	{
467	struct ev_watcher_list *w;
468	int signum;	622	int signum;
469		623
		624	#ifdef WIN32
		625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		626	#else
470	read (sigpipe [0], &revents, 1);	627	read (sigpipe [0], &revents, 1);
		628	#endif
471	gotsig = 0;	629	gotsig = 0;
472		630
473	for (signum = signalmax; signum--; )	631	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	632	if (signals [signum].gotsig)
475	{	633	ev_feed_signal_event (EV_A_ signum + 1);
476	signals [signum].gotsig = 0;
477
478	for (w = signals [signum].head; w; w = w->next)
479	event (EV_A_ (W)w, EV_SIGNAL);
480	}
481	}	634	}
482		635
483	static void	636	static void
484	siginit (EV_P)	637	siginit (EV_P)
485	{	638	{
…		…
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	650	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	651	}
499		652
500	/*****************************************************************************/	653	/*****************************************************************************/
501		654
		655	static struct ev_child *childs [PID_HASHSIZE];
		656
502	#ifndef WIN32	657	#ifndef WIN32
503		658
504	static struct ev_child *childs [PID_HASHSIZE];
505	static struct ev_signal childev;	659	static struct ev_signal childev;
506		660
507	#ifndef WCONTINUED	661	#ifndef WCONTINUED
508	# define WCONTINUED 0	662	# define WCONTINUED 0
509	#endif	663	#endif
…		…
514	struct ev_child *w;	668	struct ev_child *w;
515		669
516	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)
517	if (w->pid == pid \|\| !w->pid)	671	if (w->pid == pid \|\| !w->pid)
518	{	672	{
519	w->priority = sw->priority; /* need to do it now */	673	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	674	w->rpid = pid;
521	w->rstatus = status;	675	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	676	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	677	}
524	}	678	}
525		679
526	static void	680	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	681	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	683	int pid, status;
530		684
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	685	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	686	{
533	/* 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 */
534	event (EV_A_ (W)sw, EV_SIGNAL);	688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		689
536	child_reap (EV_A_ sw, pid, pid, status);	690	child_reap (EV_A_ sw, pid, pid, status);
537	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 */
538	}	692	}
539	}	693	}
…		…
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	751	have_monotonic = 1;
598	}	752	}
599	#endif	753	#endif
600		754
601	rt_now = ev_time ();	755	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	756	mn_now = get_clock ();
603	now_floor = mn_now;	757	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	758	rtmn_diff = ev_rt_now - mn_now;
605		759
606	if (methods == EVMETHOD_AUTO)	760	if (methods == EVMETHOD_AUTO)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	761	if (!enable_secure () && getenv ("LIBEV_METHODS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	762	methods = atoi (getenv ("LIBEV_METHODS"));
609	else	763	else
610	methods = EVMETHOD_ANY;	764	methods = EVMETHOD_ANY;
611		765
612	method = 0;	766	method = 0;
		767	#if EV_USE_WIN32
		768	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		769	#endif
613	#if EV_USE_KQUEUE	770	#if EV_USE_KQUEUE
614	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
615	#endif	772	#endif
616	#if EV_USE_EPOLL	773	#if EV_USE_EPOLL
617	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
…		…
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
621	#endif	778	#endif
622	#if EV_USE_SELECT	779	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
624	#endif	781	#endif
		782
		783	ev_init (&sigev, sigcb);
		784	ev_set_priority (&sigev, EV_MAXPRI);
625	}	785	}
626	}	786	}
627		787
628	void	788	void
629	loop_destroy (EV_P)	789	loop_destroy (EV_P)
630	{	790	{
		791	int i;
		792
		793	#if EV_USE_WIN32
		794	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		795	#endif
631	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	797	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633	#endif	798	#endif
634	#if EV_USE_EPOLL	799	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	800	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
639	#endif	804	#endif
640	#if EV_USE_SELECT	805	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	806	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642	#endif	807	#endif
643		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
644	method = 0;	822	method = 0;
645	/TODO/
646	}	823	}
647		824
648	void	825	static void
649	loop_fork (EV_P)	826	loop_fork (EV_P)
650	{	827	{
651	/TODO/
652	#if EV_USE_EPOLL	828	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	829	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654	#endif	830	#endif
655	#if EV_USE_KQUEUE	831	#if EV_USE_KQUEUE
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	832	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
657	#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;
658	}	851	}
659		852
660	#if EV_MULTIPLICITY	853	#if EV_MULTIPLICITY
661	struct ev_loop *	854	struct ev_loop *
662	ev_loop_new (int methods)	855	ev_loop_new (int methods)
663	{	856	{
664	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));
665		860
666	loop_init (EV_A_ methods);	861	loop_init (EV_A_ methods);
667		862
668	if (ev_method (EV_A))	863	if (ev_method (EV_A))
669	return loop;	864	return loop;
…		…
673		868
674	void	869	void
675	ev_loop_destroy (EV_P)	870	ev_loop_destroy (EV_P)
676	{	871	{
677	loop_destroy (EV_A);	872	loop_destroy (EV_A);
678	free (loop);	873	ev_free (loop);
679	}	874	}
680		875
681	void	876	void
682	ev_loop_fork (EV_P)	877	ev_loop_fork (EV_P)
683	{	878	{
684	loop_fork (EV_A);	879	postfork = 1;
685	}	880	}
686		881
687	#endif	882	#endif
688		883
689	#if EV_MULTIPLICITY	884	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	885	struct ev_loop *
694	#else	886	#else
695	static int default_loop;
696
697	int	887	int
698	#endif	888	#endif
699	ev_default_loop (int methods)	889	ev_default_loop (int methods)
700	{	890	{
701	if (sigpipe [0] == sigpipe [1])	891	if (sigpipe [0] == sigpipe [1])
…		…
712		902
713	loop_init (EV_A_ methods);	903	loop_init (EV_A_ methods);
714		904
715	if (ev_method (EV_A))	905	if (ev_method (EV_A))
716	{	906	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	907	siginit (EV_A);
720		908
721	#ifndef WIN32	909	#ifndef WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	910	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	911	ev_set_priority (&childev, EV_MAXPRI);
…		…
737	{	925	{
738	#if EV_MULTIPLICITY	926	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	927	struct ev_loop *loop = default_loop;
740	#endif	928	#endif
741		929
		930	#ifndef WIN32
742	ev_ref (EV_A); /* child watcher */	931	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	932	ev_signal_stop (EV_A_ &childev);
		933	#endif
744		934
745	ev_ref (EV_A); /* signal watcher */	935	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	936	ev_io_stop (EV_A_ &sigev);
747		937
748	close (sigpipe [0]); sigpipe [0] = 0;	938	close (sigpipe [0]); sigpipe [0] = 0;
…		…
756	{	946	{
757	#if EV_MULTIPLICITY	947	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	948	struct ev_loop *loop = default_loop;
759	#endif	949	#endif
760		950
761	loop_fork (EV_A);	951	if (method)
762		952	postfork = 1;
763	ev_io_stop (EV_A_ &sigev);
764	close (sigpipe [0]);
765	close (sigpipe [1]);
766	pipe (sigpipe);
767
768	ev_ref (EV_A); /* signal watcher */
769	siginit (EV_A);
770	}	953	}
771		954
772	/*****************************************************************************/	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	}
773		968
774	static void	969	static void
775	call_pending (EV_P)	970	call_pending (EV_P)
776	{	971	{
777	int pri;	972	int pri;
…		…
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		978
784	if (p->w)	979	if (p->w)
785	{	980	{
786	p->w->pending = 0;	981	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	982	EV_CB_INVOKE (p->w, p->events);
788	}	983	}
789	}	984	}
790	}	985	}
791		986
792	static void	987	static void
793	timers_reify (EV_P)	988	timers_reify (EV_P)
794	{	989	{
795	while (timercnt && timers [0]->at <= mn_now)	990	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	991	{
797	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)));
798		995
799	/* first reschedule or stop timer */	996	/* first reschedule or stop timer */
800	if (w->repeat)	997	if (w->repeat)
801	{	998	{
802	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
803	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
804	downheap ((WT *)timers, timercnt, 0);	1005	downheap ((WT *)timers, timercnt, 0);
805	}	1006	}
806	else	1007	else
807	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1008	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
808		1009
809	event (EV_A_ (W)w, EV_TIMEOUT);	1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
810	}	1011	}
811	}	1012	}
812		1013
		1014	#if EV_PERIODICS
813	static void	1015	static void
814	periodics_reify (EV_P)	1016	periodics_reify (EV_P)
815	{	1017	{
816	while (periodiccnt && periodics [0]->at <= rt_now)	1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
817	{	1019	{
818	struct ev_periodic *w = periodics [0];	1020	struct ev_periodic *w = periodics [0];
819		1021
		1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1023
820	/* first reschedule or stop timer */	1024	/* first reschedule or stop timer */
821	if (w->interval)	1025	if (w->reschedule_cb)
822	{	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	{
823	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;
824	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));
825	downheap ((WT *)periodics, periodiccnt, 0);	1036	downheap ((WT *)periodics, periodiccnt, 0);
826	}	1037	}
827	else	1038	else
828	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
829		1040
830	event (EV_A_ (W)w, EV_PERIODIC);	1041	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
831	}	1042	}
832	}	1043	}
833		1044
834	static void	1045	static void
835	periodics_reschedule (EV_P)	1046	periodics_reschedule (EV_P)
…		…
839	/* adjust periodics after time jump */	1050	/* adjust periodics after time jump */
840	for (i = 0; i < periodiccnt; ++i)	1051	for (i = 0; i < periodiccnt; ++i)
841	{	1052	{
842	struct ev_periodic *w = periodics [i];	1053	struct ev_periodic *w = periodics [i];
843		1054
		1055	if (w->reschedule_cb)
		1056	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
844	if (w->interval)	1057	else if (w->interval)
845	{
846	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;
847
848	if (fabs (diff) >= 1e-4)
849	{
850	ev_periodic_stop (EV_A_ w);
851	ev_periodic_start (EV_A_ w);
852
853	i = 0; /* restart loop, inefficient, but time jumps should be rare */
854	}
855	}
856	}	1059	}
		1060
		1061	/* now rebuild the heap */
		1062	for (i = periodiccnt >> 1; i--; )
		1063	downheap ((WT *)periodics, periodiccnt, i);
857	}	1064	}
		1065	#endif
858		1066
859	inline int	1067	inline int
860	time_update_monotonic (EV_P)	1068	time_update_monotonic (EV_P)
861	{	1069	{
862	mn_now = get_clock ();	1070	mn_now = get_clock ();
863		1071
864	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1072	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
865	{	1073	{
866	rt_now = rtmn_diff + mn_now;	1074	ev_rt_now = rtmn_diff + mn_now;
867	return 0;	1075	return 0;
868	}	1076	}
869	else	1077	else
870	{	1078	{
871	now_floor = mn_now;	1079	now_floor = mn_now;
872	rt_now = ev_time ();	1080	ev_rt_now = ev_time ();
873	return 1;	1081	return 1;
874	}	1082	}
875	}	1083	}
876		1084
877	static void	1085	static void
…		…
886	{	1094	{
887	ev_tstamp odiff = rtmn_diff;	1095	ev_tstamp odiff = rtmn_diff;
888		1096
889	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 */
890	{	1098	{
891	rtmn_diff = rt_now - mn_now;	1099	rtmn_diff = ev_rt_now - mn_now;
892		1100
893	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1101	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
894	return; /* all is well */	1102	return; /* all is well */
895		1103
896	rt_now = ev_time ();	1104	ev_rt_now = ev_time ();
897	mn_now = get_clock ();	1105	mn_now = get_clock ();
898	now_floor = mn_now;	1106	now_floor = mn_now;
899	}	1107	}
900		1108
		1109	# if EV_PERIODICS
901	periodics_reschedule (EV_A);	1110	periodics_reschedule (EV_A);
		1111	# endif
902	/* no timer adjustment, as the monotonic clock doesn't jump */	1112	/* no timer adjustment, as the monotonic clock doesn't jump */
903	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1113	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
904	}	1114	}
905	}	1115	}
906	else	1116	else
907	#endif	1117	#endif
908	{	1118	{
909	rt_now = ev_time ();	1119	ev_rt_now = ev_time ();
910		1120
911	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))
912	{	1122	{
		1123	#if EV_PERIODICS
913	periodics_reschedule (EV_A);	1124	periodics_reschedule (EV_A);
		1125	#endif
914		1126
915	/* 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 */
916	for (i = 0; i < timercnt; ++i)	1128	for (i = 0; i < timercnt; ++i)
917	timers [i]->at += rt_now - mn_now;	1129	((WT)timers [i])->at += ev_rt_now - mn_now;
918	}	1130	}
919		1131
920	mn_now = rt_now;	1132	mn_now = ev_rt_now;
921	}	1133	}
922	}	1134	}
923		1135
924	void	1136	void
925	ev_ref (EV_P)	1137	ev_ref (EV_P)
…		…
948	{	1160	{
949	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
950	call_pending (EV_A);	1162	call_pending (EV_A);
951	}	1163	}
952		1164
		1165	/* we might have forked, so reify kernel state if necessary */
		1166	if (expect_false (postfork))
		1167	loop_fork (EV_A);
		1168
953	/* update fd-related kernel structures */	1169	/* update fd-related kernel structures */
954	fd_reify (EV_A);	1170	fd_reify (EV_A);
955		1171
956	/* calculate blocking time */	1172	/* calculate blocking time */
957		1173
958	/* 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
959	always have timers, we just calculate it always */	1175	always have timers, we just calculate it always */
960	#if EV_USE_MONOTONIC	1176	#if EV_USE_MONOTONIC
961	if (expect_true (have_monotonic))	1177	if (expect_true (have_monotonic))
962	time_update_monotonic (EV_A);	1178	time_update_monotonic (EV_A);
963	else	1179	else
964	#endif	1180	#endif
965	{	1181	{
966	rt_now = ev_time ();	1182	ev_rt_now = ev_time ();
967	mn_now = rt_now;	1183	mn_now = ev_rt_now;
968	}	1184	}
969		1185
970	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1186	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
971	block = 0.;	1187	block = 0.;
972	else	1188	else
973	{	1189	{
974	block = MAX_BLOCKTIME;	1190	block = MAX_BLOCKTIME;
975		1191
976	if (timercnt)	1192	if (timercnt)
977	{	1193	{
978	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
979	if (block > to) block = to;	1195	if (block > to) block = to;
980	}	1196	}
981		1197
		1198	#if EV_PERIODICS
982	if (periodiccnt)	1199	if (periodiccnt)
983	{	1200	{
984	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
985	if (block > to) block = to;	1202	if (block > to) block = to;
986	}	1203	}
		1204	#endif
987		1205
988	if (block < 0.) block = 0.;	1206	if (block < 0.) block = 0.;
989	}	1207	}
990		1208
991	method_poll (EV_A_ block);	1209	method_poll (EV_A_ block);
992		1210
993	/* update rt_now, do magic */	1211	/* update ev_rt_now, do magic */
994	time_update (EV_A);	1212	time_update (EV_A);
995		1213
996	/* queue pending timers and reschedule them */	1214	/* queue pending timers and reschedule them */
997	timers_reify (EV_A); /* relative timers called last */	1215	timers_reify (EV_A); /* relative timers called last */
		1216	#if EV_PERIODICS
998	periodics_reify (EV_A); /* absolute timers called first */	1217	periodics_reify (EV_A); /* absolute timers called first */
		1218	#endif
999		1219
1000	/* queue idle watchers unless io or timers are pending */	1220	/* queue idle watchers unless io or timers are pending */
1001	if (!pendingcnt)	1221	if (idlecnt && !any_pending (EV_A))
1002	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1003		1223
1004	/* queue check watchers, to be executed first */	1224	/* queue check watchers, to be executed first */
1005	if (checkcnt)	1225	if (checkcnt)
1006	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1081	return;	1301	return;
1082		1302
1083	assert (("ev_io_start called with negative fd", fd >= 0));	1303	assert (("ev_io_start called with negative fd", fd >= 0));
1084		1304
1085	ev_start (EV_A_ (W)w, 1);	1305	ev_start (EV_A_ (W)w, 1);
1086	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1306	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1087	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1307	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1088		1308
1089	fd_change (EV_A_ fd);	1309	fd_change (EV_A_ fd);
1090	}	1310	}
1091		1311
…		…
1094	{	1314	{
1095	ev_clear_pending (EV_A_ (W)w);	1315	ev_clear_pending (EV_A_ (W)w);
1096	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
1097	return;	1317	return;
1098		1318
		1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1320
1099	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1100	ev_stop (EV_A_ (W)w);	1322	ev_stop (EV_A_ (W)w);
1101		1323
1102	fd_change (EV_A_ w->fd);	1324	fd_change (EV_A_ w->fd);
1103	}	1325	}
…		…
1106	ev_timer_start (EV_P_ struct ev_timer *w)	1328	ev_timer_start (EV_P_ struct ev_timer *w)
1107	{	1329	{
1108	if (ev_is_active (w))	1330	if (ev_is_active (w))
1109	return;	1331	return;
1110		1332
1111	w->at += mn_now;	1333	((WT)w)->at += mn_now;
1112		1334
1113	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.));
1114		1336
1115	ev_start (EV_A_ (W)w, ++timercnt);	1337	ev_start (EV_A_ (W)w, ++timercnt);
1116	array_needsize (timers, timermax, timercnt, );	1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1117	timers [timercnt - 1] = w;	1339	timers [timercnt - 1] = w;
1118	upheap ((WT *)timers, timercnt - 1);	1340	upheap ((WT *)timers, timercnt - 1);
		1341
		1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1119	}	1343	}
1120		1344
1121	void	1345	void
1122	ev_timer_stop (EV_P_ struct ev_timer *w)	1346	ev_timer_stop (EV_P_ struct ev_timer *w)
1123	{	1347	{
1124	ev_clear_pending (EV_A_ (W)w);	1348	ev_clear_pending (EV_A_ (W)w);
1125	if (!ev_is_active (w))	1349	if (!ev_is_active (w))
1126	return;	1350	return;
1127		1351
		1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1353
1128	if (w->active < timercnt--)	1354	if (((W)w)->active < timercnt--)
1129	{	1355	{
1130	timers [w->active - 1] = timers [timercnt];	1356	timers [((W)w)->active - 1] = timers [timercnt];
1131	downheap ((WT *)timers, timercnt, w->active - 1);	1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1132	}	1358	}
1133		1359
1134	w->at = w->repeat;	1360	((WT)w)->at -= mn_now;
1135		1361
1136	ev_stop (EV_A_ (W)w);	1362	ev_stop (EV_A_ (W)w);
1137	}	1363	}
1138		1364
1139	void	1365	void
1140	ev_timer_again (EV_P_ struct ev_timer *w)	1366	ev_timer_again (EV_P_ struct ev_timer *w)
1141	{	1367	{
1142	if (ev_is_active (w))	1368	if (ev_is_active (w))
1143	{	1369	{
1144	if (w->repeat)	1370	if (w->repeat)
1145	{
1146	w->at = mn_now + w->repeat;
1147	downheap ((WT *)timers, timercnt, w->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
1148	}
1149	else	1372	else
1150	ev_timer_stop (EV_A_ w);	1373	ev_timer_stop (EV_A_ w);
1151	}	1374	}
1152	else if (w->repeat)	1375	else if (w->repeat)
1153	ev_timer_start (EV_A_ w);	1376	ev_timer_start (EV_A_ w);
1154	}	1377	}
1155		1378
		1379	#if EV_PERIODICS
1156	void	1380	void
1157	ev_periodic_start (EV_P_ struct ev_periodic *w)	1381	ev_periodic_start (EV_P_ struct ev_periodic *w)
1158	{	1382	{
1159	if (ev_is_active (w))	1383	if (ev_is_active (w))
1160	return;	1384	return;
1161		1385
		1386	if (w->reschedule_cb)
		1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1388	else if (w->interval)
		1389	{
1162	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.));
1163
1164	/* 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 */
1165	if (w->interval)
1166	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	}
1167		1394
1168	ev_start (EV_A_ (W)w, ++periodiccnt);	1395	ev_start (EV_A_ (W)w, ++periodiccnt);
1169	array_needsize (periodics, periodicmax, periodiccnt, );	1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1170	periodics [periodiccnt - 1] = w;	1397	periodics [periodiccnt - 1] = w;
1171	upheap ((WT *)periodics, periodiccnt - 1);	1398	upheap ((WT *)periodics, periodiccnt - 1);
		1399
		1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1172	}	1401	}
1173		1402
1174	void	1403	void
1175	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1176	{	1405	{
1177	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1178	if (!ev_is_active (w))	1407	if (!ev_is_active (w))
1179	return;	1408	return;
1180		1409
		1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1411
1181	if (w->active < periodiccnt--)	1412	if (((W)w)->active < periodiccnt--)
1182	{	1413	{
1183	periodics [w->active - 1] = periodics [periodiccnt];	1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1184	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1185	}	1416	}
1186		1417
1187	ev_stop (EV_A_ (W)w);	1418	ev_stop (EV_A_ (W)w);
1188	}	1419	}
1189		1420
1190	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
1191	ev_idle_start (EV_P_ struct ev_idle *w)	1431	ev_idle_start (EV_P_ struct ev_idle *w)
1192	{	1432	{
1193	if (ev_is_active (w))	1433	if (ev_is_active (w))
1194	return;	1434	return;
1195		1435
1196	ev_start (EV_A_ (W)w, ++idlecnt);	1436	ev_start (EV_A_ (W)w, ++idlecnt);
1197	array_needsize (idles, idlemax, idlecnt, );	1437	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1198	idles [idlecnt - 1] = w;	1438	idles [idlecnt - 1] = w;
1199	}	1439	}
1200		1440
1201	void	1441	void
1202	ev_idle_stop (EV_P_ struct ev_idle *w)	1442	ev_idle_stop (EV_P_ struct ev_idle *w)
1203	{	1443	{
1204	ev_clear_pending (EV_A_ (W)w);	1444	ev_clear_pending (EV_A_ (W)w);
1205	if (ev_is_active (w))	1445	if (ev_is_active (w))
1206	return;	1446	return;
1207		1447
1208	idles [w->active - 1] = idles [--idlecnt];	1448	idles [((W)w)->active - 1] = idles [--idlecnt];
1209	ev_stop (EV_A_ (W)w);	1449	ev_stop (EV_A_ (W)w);
1210	}	1450	}
1211		1451
1212	void	1452	void
1213	ev_prepare_start (EV_P_ struct ev_prepare *w)	1453	ev_prepare_start (EV_P_ struct ev_prepare *w)
1214	{	1454	{
1215	if (ev_is_active (w))	1455	if (ev_is_active (w))
1216	return;	1456	return;
1217		1457
1218	ev_start (EV_A_ (W)w, ++preparecnt);	1458	ev_start (EV_A_ (W)w, ++preparecnt);
1219	array_needsize (prepares, preparemax, preparecnt, );	1459	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1220	prepares [preparecnt - 1] = w;	1460	prepares [preparecnt - 1] = w;
1221	}	1461	}
1222		1462
1223	void	1463	void
1224	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1464	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1225	{	1465	{
1226	ev_clear_pending (EV_A_ (W)w);	1466	ev_clear_pending (EV_A_ (W)w);
1227	if (ev_is_active (w))	1467	if (ev_is_active (w))
1228	return;	1468	return;
1229		1469
1230	prepares [w->active - 1] = prepares [--preparecnt];	1470	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1231	ev_stop (EV_A_ (W)w);	1471	ev_stop (EV_A_ (W)w);
1232	}	1472	}
1233		1473
1234	void	1474	void
1235	ev_check_start (EV_P_ struct ev_check *w)	1475	ev_check_start (EV_P_ struct ev_check *w)
1236	{	1476	{
1237	if (ev_is_active (w))	1477	if (ev_is_active (w))
1238	return;	1478	return;
1239		1479
1240	ev_start (EV_A_ (W)w, ++checkcnt);	1480	ev_start (EV_A_ (W)w, ++checkcnt);
1241	array_needsize (checks, checkmax, checkcnt, );	1481	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1242	checks [checkcnt - 1] = w;	1482	checks [checkcnt - 1] = w;
1243	}	1483	}
1244		1484
1245	void	1485	void
1246	ev_check_stop (EV_P_ struct ev_check *w)	1486	ev_check_stop (EV_P_ struct ev_check *w)
1247	{	1487	{
1248	ev_clear_pending (EV_A_ (W)w);	1488	ev_clear_pending (EV_A_ (W)w);
1249	if (ev_is_active (w))	1489	if (!ev_is_active (w))
1250	return;	1490	return;
1251		1491
1252	checks [w->active - 1] = checks [--checkcnt];	1492	checks [((W)w)->active - 1] = checks [--checkcnt];
1253	ev_stop (EV_A_ (W)w);	1493	ev_stop (EV_A_ (W)w);
1254	}	1494	}
1255		1495
1256	#ifndef SA_RESTART	1496	#ifndef SA_RESTART
1257	# define SA_RESTART 0	1497	# define SA_RESTART 0
…		…
1267	return;	1507	return;
1268		1508
1269	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));
1270		1510
1271	ev_start (EV_A_ (W)w, 1);	1511	ev_start (EV_A_ (W)w, 1);
1272	array_needsize (signals, signalmax, w->signum, signals_init);	1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1273	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1274		1514
1275	if (!w->next)	1515	if (!((WL)w)->next)
1276	{	1516	{
		1517	#if WIN32
		1518	signal (w->signum, sighandler);
		1519	#else
1277	struct sigaction sa;	1520	struct sigaction sa;
1278	sa.sa_handler = sighandler;	1521	sa.sa_handler = sighandler;
1279	sigfillset (&sa.sa_mask);	1522	sigfillset (&sa.sa_mask);
1280	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 */
1281	sigaction (w->signum, &sa, 0);	1524	sigaction (w->signum, &sa, 0);
		1525	#endif
1282	}	1526	}
1283	}	1527	}
1284		1528
1285	void	1529	void
1286	ev_signal_stop (EV_P_ struct ev_signal *w)	1530	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1311		1555
1312	void	1556	void
1313	ev_child_stop (EV_P_ struct ev_child *w)	1557	ev_child_stop (EV_P_ struct ev_child *w)
1314	{	1558	{
1315	ev_clear_pending (EV_A_ (W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1316	if (ev_is_active (w))	1560	if (!ev_is_active (w))
1317	return;	1561	return;
1318		1562
1319	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1320	ev_stop (EV_A_ (W)w);	1564	ev_stop (EV_A_ (W)w);
1321	}	1565	}
…		…
1336	void (cb)(int revents, void arg) = once->cb;	1580	void (cb)(int revents, void arg) = once->cb;
1337	void *arg = once->arg;	1581	void *arg = once->arg;
1338		1582
1339	ev_io_stop (EV_A_ &once->io);	1583	ev_io_stop (EV_A_ &once->io);
1340	ev_timer_stop (EV_A_ &once->to);	1584	ev_timer_stop (EV_A_ &once->to);
1341	free (once);	1585	ev_free (once);
1342		1586
1343	cb (revents, arg);	1587	cb (revents, arg);
1344	}	1588	}
1345		1589
1346	static void	1590	static void
…		…
1356	}	1600	}
1357		1601
1358	void	1602	void
1359	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)
1360	{	1604	{
1361	struct ev_once *once = malloc (sizeof (struct ev_once));	1605	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1362		1606
1363	if (!once)	1607	if (!once)
1364	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1365	else	1609	else
1366	{	1610	{
1367	once->cb = cb;	1611	once->cb = cb;
1368	once->arg = arg;	1612	once->arg = arg;
1369		1613
1370	ev_watcher_init (&once->io, once_cb_io);	1614	ev_init (&once->io, once_cb_io);
1371	if (fd >= 0)	1615	if (fd >= 0)
1372	{	1616	{
1373	ev_io_set (&once->io, fd, events);	1617	ev_io_set (&once->io, fd, events);
1374	ev_io_start (EV_A_ &once->io);	1618	ev_io_start (EV_A_ &once->io);
1375	}	1619	}
1376		1620
1377	ev_watcher_init (&once->to, once_cb_to);	1621	ev_init (&once->to, once_cb_to);
1378	if (timeout >= 0.)	1622	if (timeout >= 0.)
1379	{	1623	{
1380	ev_timer_set (&once->to, timeout, 0.);	1624	ev_timer_set (&once->to, timeout, 0.);
1381	ev_timer_start (EV_A_ &once->to);	1625	ev_timer_start (EV_A_ &once->to);
1382	}	1626	}
1383	}	1627	}
1384	}	1628	}
1385		1629
		1630	#ifdef __cplusplus
		1631	}
		1632	#endif
		1633

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.60 by root, Sun Nov 4 18:29:44 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 1.60 by root, Sun Nov 4 18:29:44 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC