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

Comparing libev/ev.c (file contents):
Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs.
Revision 1.99 by root, Sun Nov 11 02:26:47 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;
		238	#define ev_rt_now ((loop)->ev_rt_now)
161	# define VAR(name,decl) decl;	239	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	240	#include "ev_vars.h"
163	};
164	# undef VAR	241	#undef VAR
		242	};
165	# include "ev_wrap.h"	243	#include "ev_wrap.h"
		244
		245	struct ev_loop default_loop_struct;
		246	static struct ev_loop *default_loop;
166		247
167	#else	248	#else
168		249
		250	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	251	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	252	#include "ev_vars.h"
171	# undef VAR	253	#undef VAR
		254
		255	static int default_loop;
172		256
173	#endif	257	#endif
174		258
175	/*****************************************************************************/	259	/*****************************************************************************/
176		260
177	inline ev_tstamp	261	ev_tstamp
178	ev_time (void)	262	ev_time (void)
179	{	263	{
180	#if EV_USE_REALTIME	264	#if EV_USE_REALTIME
181	struct timespec ts;	265	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	266	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	285	#endif
202		286
203	return ev_time ();	287	return ev_time ();
204	}	288	}
205		289
		290	#if EV_MULTIPLICITY
206	ev_tstamp	291	ev_tstamp
207	ev_now (EV_P)	292	ev_now (EV_P)
208	{	293	{
209	return rt_now;	294	return ev_rt_now;
210	}	295	}
		296	#endif
211		297
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	298	#define array_roundsize(type,n) ((n) \| 4 & ~3)
213		299
214	#define array_needsize(base,cur,cnt,init) \	300	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	301	if (expect_false ((cnt) > cur)) \
216	{ \	302	{ \
217	int newcnt = cur; \	303	int newcnt = cur; \
218	do \	304	do \
219	{ \	305	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	306	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	307	} \
222	while ((cnt) > newcnt); \	308	while ((cnt) > newcnt); \
223	\	309	\
224	base = realloc (base, sizeof (base) (newcnt)); \	310	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	311	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	312	cur = newcnt; \
227	}	313	}
		314
		315	#define array_slim(type,stem) \
		316	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		317	{ \
		318	stem ## max = array_roundsize (stem ## cnt >> 1); \
		319	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		320	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		321	}
		322
		323	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		324	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		325	#define array_free_microshit(stem) \
		326	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		327
		328	#define array_free(stem, idx) \
		329	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		330
229	/*****************************************************************************/	331	/*****************************************************************************/
230		332
231	static void	333	static void
232	anfds_init (ANFD *base, int count)	334	anfds_init (ANFD *base, int count)
…		…
239		341
240	++base;	342	++base;
241	}	343	}
242	}	344	}
243		345
244	static void	346	void
245	event (EV_P_ W w, int events)	347	ev_feed_event (EV_P_ void *w, int revents)
246	{	348	{
		349	W w_ = (W)w;
		350
247	if (w->pending)	351	if (w_->pending)
248	{	352	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	354	return;
251	}	355	}
252		356
253	w->pending = ++pendingcnt [ABSPRI (w)];	357	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	358	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	359	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	360	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	361	}
258		362
259	static void	363	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	364	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	365	{
262	int i;	366	int i;
263		367
264	for (i = 0; i < eventcnt; ++i)	368	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	369	ev_feed_event (EV_A_ events [i], type);
266	}	370	}
267		371
268	static void	372	inline void
269	fd_event (EV_P_ int fd, int events)	373	fd_event (EV_P_ int fd, int revents)
270	{	374	{
271	ANFD *anfd = anfds + fd;	375	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	376	struct ev_io *w;
273		377
274	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	378	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
275	{	379	{
276	int ev = w->events & events;	380	int ev = w->events & revents;
277		381
278	if (ev)	382	if (ev)
279	event (EV_A_ (W)w, ev);	383	ev_feed_event (EV_A_ (W)w, ev);
280	}	384	}
		385	}
		386
		387	void
		388	ev_feed_fd_event (EV_P_ int fd, int revents)
		389	{
		390	fd_event (EV_A_ fd, revents);
281	}	391	}
282		392
283	/*****************************************************************************/	393	/*****************************************************************************/
284		394
285	static void	395	static void
…		…
298	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	408	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
299	events \|= w->events;	409	events \|= w->events;
300		410
301	anfd->reify = 0;	411	anfd->reify = 0;
302		412
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	413	method_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	414	anfd->events = events;
307	}
308	}	415	}
309		416
310	fdchangecnt = 0;	417	fdchangecnt = 0;
311	}	418	}
312		419
313	static void	420	static void
314	fd_change (EV_P_ int fd)	421	fd_change (EV_P_ int fd)
315	{	422	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	423	if (anfds [fd].reify)
317	return;	424	return;
318		425
319	anfds [fd].reify = 1;	426	anfds [fd].reify = 1;
320		427
321	++fdchangecnt;	428	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	429	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
323	fdchanges [fdchangecnt - 1] = fd;	430	fdchanges [fdchangecnt - 1] = fd;
324	}	431	}
325		432
326	static void	433	static void
327	fd_kill (EV_P_ int fd)	434	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	436	struct ev_io *w;
330		437
331	while ((w = (struct ev_io *)anfds [fd].head))	438	while ((w = (struct ev_io *)anfds [fd].head))
332	{	439	{
333	ev_io_stop (EV_A_ w);	440	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	441	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
335	}	442	}
		443	}
		444
		445	static int
		446	fd_valid (int fd)
		447	{
		448	#ifdef WIN32
		449	return !!win32_get_osfhandle (fd);
		450	#else
		451	return fcntl (fd, F_GETFD) != -1;
		452	#endif
336	}	453	}
337		454
338	/* called on EBADF to verify fds */	455	/* called on EBADF to verify fds */
339	static void	456	static void
340	fd_ebadf (EV_P)	457	fd_ebadf (EV_P)
341	{	458	{
342	int fd;	459	int fd;
343		460
344	for (fd = 0; fd < anfdmax; ++fd)	461	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	462	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	463	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	464	fd_kill (EV_A_ fd);
348	}	465	}
349		466
350	/* called on ENOMEM in select/poll to kill some fds and retry */	467	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	468	static void
352	fd_enomem (EV_P)	469	fd_enomem (EV_P)
353	{	470	{
354	int fd = anfdmax;	471	int fd;
355		472
356	while (fd--)	473	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	474	if (anfds [fd].events)
358	{	475	{
359	close (fd);
360	fd_kill (EV_A_ fd);	476	fd_kill (EV_A_ fd);
361	return;	477	return;
362	}	478	}
363	}	479	}
364		480
365	/* susually called after fork if method needs to re-arm all fds from scratch */	481	/* usually called after fork if method needs to re-arm all fds from scratch */
366	static void	482	static void
367	fd_rearm_all (EV_P)	483	fd_rearm_all (EV_P)
368	{	484	{
369	int fd;	485	int fd;
370		486
…		…
385	WT w = heap [k];	501	WT w = heap [k];
386		502
387	while (k && heap [k >> 1]->at > w->at)	503	while (k && heap [k >> 1]->at > w->at)
388	{	504	{
389	heap [k] = heap [k >> 1];	505	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	506	((W)heap [k])->active = k + 1;
391	k >>= 1;	507	k >>= 1;
392	}	508	}
393		509
394	heap [k] = w;	510	heap [k] = w;
395	heap [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
396		512
397	}	513	}
398		514
399	static void	515	static void
400	downheap (WT *heap, int N, int k)	516	downheap (WT *heap, int N, int k)
…		…
410		526
411	if (w->at <= heap [j]->at)	527	if (w->at <= heap [j]->at)
412	break;	528	break;
413		529
414	heap [k] = heap [j];	530	heap [k] = heap [j];
415	heap [k]->active = k + 1;	531	((W)heap [k])->active = k + 1;
416	k = j;	532	k = j;
417	}	533	}
418		534
419	heap [k] = w;	535	heap [k] = w;
420	heap [k]->active = k + 1;	536	((W)heap [k])->active = k + 1;
		537	}
		538
		539	inline void
		540	adjustheap (WT *heap, int N, int k)
		541	{
		542	upheap (heap, k);
		543	downheap (heap, N, k);
421	}	544	}
422		545
423	/*****************************************************************************/	546	/*****************************************************************************/
424		547
425	typedef struct	548	typedef struct
426	{	549	{
427	struct ev_watcher_list *head;	550	WL head;
428	sig_atomic_t volatile gotsig;	551	sig_atomic_t volatile gotsig;
429	} ANSIG;	552	} ANSIG;
430		553
431	static ANSIG *signals;	554	static ANSIG *signals;
432	static int signalmax;	555	static int signalmax;
…		…
448	}	571	}
449		572
450	static void	573	static void
451	sighandler (int signum)	574	sighandler (int signum)
452	{	575	{
		576	#if WIN32
		577	signal (signum, sighandler);
		578	#endif
		579
453	signals [signum - 1].gotsig = 1;	580	signals [signum - 1].gotsig = 1;
454		581
455	if (!gotsig)	582	if (!gotsig)
456	{	583	{
457	int old_errno = errno;	584	int old_errno = errno;
458	gotsig = 1;	585	gotsig = 1;
		586	#ifdef WIN32
		587	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		588	#else
459	write (sigpipe [1], &signum, 1);	589	write (sigpipe [1], &signum, 1);
		590	#endif
460	errno = old_errno;	591	errno = old_errno;
461	}	592	}
462	}	593	}
463		594
		595	void
		596	ev_feed_signal_event (EV_P_ int signum)
		597	{
		598	WL w;
		599
		600	#if EV_MULTIPLICITY
		601	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		602	#endif
		603
		604	--signum;
		605
		606	if (signum < 0 \|\| signum >= signalmax)
		607	return;
		608
		609	signals [signum].gotsig = 0;
		610
		611	for (w = signals [signum].head; w; w = w->next)
		612	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		613	}
		614
464	static void	615	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	616	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	617	{
467	struct ev_watcher_list *w;
468	int signum;	618	int signum;
469		619
		620	#ifdef WIN32
		621	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		622	#else
470	read (sigpipe [0], &revents, 1);	623	read (sigpipe [0], &revents, 1);
		624	#endif
471	gotsig = 0;	625	gotsig = 0;
472		626
473	for (signum = signalmax; signum--; )	627	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	628	if (signals [signum].gotsig)
475	{	629	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	}	630	}
482		631
483	static void	632	static void
484	siginit (EV_P)	633	siginit (EV_P)
485	{	634	{
…		…
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	646	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	647	}
499		648
500	/*****************************************************************************/	649	/*****************************************************************************/
501		650
		651	static struct ev_child *childs [PID_HASHSIZE];
		652
502	#ifndef WIN32	653	#ifndef WIN32
503		654
504	static struct ev_child *childs [PID_HASHSIZE];
505	static struct ev_signal childev;	655	static struct ev_signal childev;
506		656
507	#ifndef WCONTINUED	657	#ifndef WCONTINUED
508	# define WCONTINUED 0	658	# define WCONTINUED 0
509	#endif	659	#endif
…		…
514	struct ev_child *w;	664	struct ev_child *w;
515		665
516	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	666	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)	667	if (w->pid == pid \|\| !w->pid)
518	{	668	{
519	w->priority = sw->priority; /* need to do it now */	669	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	670	w->rpid = pid;
521	w->rstatus = status;	671	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	672	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	673	}
524	}	674	}
525		675
526	static void	676	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	677	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	679	int pid, status;
530		680
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	681	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	682	{
533	/* make sure we are called again until all childs have been reaped */	683	/* make sure we are called again until all childs have been reaped */
534	event (EV_A_ (W)sw, EV_SIGNAL);	684	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		685
536	child_reap (EV_A_ sw, pid, pid, status);	686	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 */	687	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
538	}	688	}
539	}	689	}
…		…
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	746	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	747	have_monotonic = 1;
598	}	748	}
599	#endif	749	#endif
600		750
601	rt_now = ev_time ();	751	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	752	mn_now = get_clock ();
603	now_floor = mn_now;	753	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	754	rtmn_diff = ev_rt_now - mn_now;
605		755
606	if (methods == EVMETHOD_AUTO)	756	if (methods == EVMETHOD_AUTO)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	757	if (!enable_secure () && getenv ("LIBEV_METHODS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	758	methods = atoi (getenv ("LIBEV_METHODS"));
609	else	759	else
610	methods = EVMETHOD_ANY;	760	methods = EVMETHOD_ANY;
611		761
612	method = 0;	762	method = 0;
		763	#if EV_USE_WIN32
		764	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		765	#endif
613	#if EV_USE_KQUEUE	766	#if EV_USE_KQUEUE
614	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	767	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
615	#endif	768	#endif
616	#if EV_USE_EPOLL	769	#if EV_USE_EPOLL
617	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	770	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
…		…
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	773	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
621	#endif	774	#endif
622	#if EV_USE_SELECT	775	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	776	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
624	#endif	777	#endif
		778
		779	ev_init (&sigev, sigcb);
		780	ev_set_priority (&sigev, EV_MAXPRI);
625	}	781	}
626	}	782	}
627		783
628	void	784	void
629	loop_destroy (EV_P)	785	loop_destroy (EV_P)
630	{	786	{
		787	int i;
		788
		789	#if EV_USE_WIN32
		790	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		791	#endif
631	#if EV_USE_KQUEUE	792	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	793	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633	#endif	794	#endif
634	#if EV_USE_EPOLL	795	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	796	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
639	#endif	800	#endif
640	#if EV_USE_SELECT	801	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	802	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642	#endif	803	#endif
643		804
		805	for (i = NUMPRI; i--; )
		806	array_free (pending, [i]);
		807
		808	/* have to use the microsoft-never-gets-it-right macro */
		809	array_free_microshit (fdchange);
		810	array_free_microshit (timer);
		811	#if EV_PERIODICS
		812	array_free_microshit (periodic);
		813	#endif
		814	array_free_microshit (idle);
		815	array_free_microshit (prepare);
		816	array_free_microshit (check);
		817
644	method = 0;	818	method = 0;
645	/TODO/
646	}	819	}
647		820
648	void	821	static void
649	loop_fork (EV_P)	822	loop_fork (EV_P)
650	{	823	{
651	/TODO/
652	#if EV_USE_EPOLL	824	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	825	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654	#endif	826	#endif
655	#if EV_USE_KQUEUE	827	#if EV_USE_KQUEUE
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	828	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
657	#endif	829	#endif
		830
		831	if (ev_is_active (&sigev))
		832	{
		833	/* default loop */
		834
		835	ev_ref (EV_A);
		836	ev_io_stop (EV_A_ &sigev);
		837	close (sigpipe [0]);
		838	close (sigpipe [1]);
		839
		840	while (pipe (sigpipe))
		841	syserr ("(libev) error creating pipe");
		842
		843	siginit (EV_A);
		844	}
		845
		846	postfork = 0;
658	}	847	}
659		848
660	#if EV_MULTIPLICITY	849	#if EV_MULTIPLICITY
661	struct ev_loop *	850	struct ev_loop *
662	ev_loop_new (int methods)	851	ev_loop_new (int methods)
663	{	852	{
664	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	853	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		854
		855	memset (loop, 0, sizeof (struct ev_loop));
665		856
666	loop_init (EV_A_ methods);	857	loop_init (EV_A_ methods);
667		858
668	if (ev_method (EV_A))	859	if (ev_method (EV_A))
669	return loop;	860	return loop;
…		…
673		864
674	void	865	void
675	ev_loop_destroy (EV_P)	866	ev_loop_destroy (EV_P)
676	{	867	{
677	loop_destroy (EV_A);	868	loop_destroy (EV_A);
678	free (loop);	869	ev_free (loop);
679	}	870	}
680		871
681	void	872	void
682	ev_loop_fork (EV_P)	873	ev_loop_fork (EV_P)
683	{	874	{
684	loop_fork (EV_A);	875	postfork = 1;
685	}	876	}
686		877
687	#endif	878	#endif
688		879
689	#if EV_MULTIPLICITY	880	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	881	struct ev_loop *
694	#else	882	#else
695	static int default_loop;
696
697	int	883	int
698	#endif	884	#endif
699	ev_default_loop (int methods)	885	ev_default_loop (int methods)
700	{	886	{
701	if (sigpipe [0] == sigpipe [1])	887	if (sigpipe [0] == sigpipe [1])
…		…
712		898
713	loop_init (EV_A_ methods);	899	loop_init (EV_A_ methods);
714		900
715	if (ev_method (EV_A))	901	if (ev_method (EV_A))
716	{	902	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	903	siginit (EV_A);
720		904
721	#ifndef WIN32	905	#ifndef WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	906	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	907	ev_set_priority (&childev, EV_MAXPRI);
…		…
737	{	921	{
738	#if EV_MULTIPLICITY	922	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	923	struct ev_loop *loop = default_loop;
740	#endif	924	#endif
741		925
		926	#ifndef WIN32
742	ev_ref (EV_A); /* child watcher */	927	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	928	ev_signal_stop (EV_A_ &childev);
		929	#endif
744		930
745	ev_ref (EV_A); /* signal watcher */	931	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	932	ev_io_stop (EV_A_ &sigev);
747		933
748	close (sigpipe [0]); sigpipe [0] = 0;	934	close (sigpipe [0]); sigpipe [0] = 0;
…		…
756	{	942	{
757	#if EV_MULTIPLICITY	943	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	944	struct ev_loop *loop = default_loop;
759	#endif	945	#endif
760		946
761	loop_fork (EV_A);	947	if (method)
762		948	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	}	949	}
771		950
772	/*****************************************************************************/	951	/*****************************************************************************/
		952
		953	static int
		954	any_pending (EV_P)
		955	{
		956	int pri;
		957
		958	for (pri = NUMPRI; pri--; )
		959	if (pendingcnt [pri])
		960	return 1;
		961
		962	return 0;
		963	}
773		964
774	static void	965	static void
775	call_pending (EV_P)	966	call_pending (EV_P)
776	{	967	{
777	int pri;	968	int pri;
…		…
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	973	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		974
784	if (p->w)	975	if (p->w)
785	{	976	{
786	p->w->pending = 0;	977	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	978	EV_CB_INVOKE (p->w, p->events);
788	}	979	}
789	}	980	}
790	}	981	}
791		982
792	static void	983	static void
793	timers_reify (EV_P)	984	timers_reify (EV_P)
794	{	985	{
795	while (timercnt && timers [0]->at <= mn_now)	986	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	987	{
797	struct ev_timer *w = timers [0];	988	struct ev_timer *w = timers [0];
798		989
799	assert (("inactive timer on timer heap detected", ev_is_active (w)));	990	assert (("inactive timer on timer heap detected", ev_is_active (w)));
800		991
801	/* first reschedule or stop timer */	992	/* first reschedule or stop timer */
802	if (w->repeat)	993	if (w->repeat)
803	{	994	{
804	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	995	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		996
805	w->at = mn_now + w->repeat;	997	((WT)w)->at += w->repeat;
		998	if (((WT)w)->at < mn_now)
		999	((WT)w)->at = mn_now;
		1000
806	downheap ((WT *)timers, timercnt, 0);	1001	downheap ((WT *)timers, timercnt, 0);
807	}	1002	}
808	else	1003	else
809	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1004	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
810		1005
811	event (EV_A_ (W)w, EV_TIMEOUT);	1006	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
812	}	1007	}
813	}	1008	}
814		1009
		1010	#if EV_PERIODICS
815	static void	1011	static void
816	periodics_reify (EV_P)	1012	periodics_reify (EV_P)
817	{	1013	{
818	while (periodiccnt && periodics [0]->at <= rt_now)	1014	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
819	{	1015	{
820	struct ev_periodic *w = periodics [0];	1016	struct ev_periodic *w = periodics [0];
821		1017
822	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1018	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
823		1019
824	/* first reschedule or stop timer */	1020	/* first reschedule or stop timer */
825	if (w->interval)	1021	if (w->reschedule_cb)
826	{	1022	{
		1023	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1024
		1025	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1026	downheap ((WT *)periodics, periodiccnt, 0);
		1027	}
		1028	else if (w->interval)
		1029	{
827	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1030	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
828	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1031	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
829	downheap ((WT *)periodics, periodiccnt, 0);	1032	downheap ((WT *)periodics, periodiccnt, 0);
830	}	1033	}
831	else	1034	else
832	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1035	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
833		1036
834	event (EV_A_ (W)w, EV_PERIODIC);	1037	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
835	}	1038	}
836	}	1039	}
837		1040
838	static void	1041	static void
839	periodics_reschedule (EV_P)	1042	periodics_reschedule (EV_P)
…		…
843	/* adjust periodics after time jump */	1046	/* adjust periodics after time jump */
844	for (i = 0; i < periodiccnt; ++i)	1047	for (i = 0; i < periodiccnt; ++i)
845	{	1048	{
846	struct ev_periodic *w = periodics [i];	1049	struct ev_periodic *w = periodics [i];
847		1050
		1051	if (w->reschedule_cb)
		1052	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
848	if (w->interval)	1053	else if (w->interval)
849	{
850	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1054	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
851
852	if (fabs (diff) >= 1e-4)
853	{
854	ev_periodic_stop (EV_A_ w);
855	ev_periodic_start (EV_A_ w);
856
857	i = 0; /* restart loop, inefficient, but time jumps should be rare */
858	}
859	}
860	}	1055	}
		1056
		1057	/* now rebuild the heap */
		1058	for (i = periodiccnt >> 1; i--; )
		1059	downheap ((WT *)periodics, periodiccnt, i);
861	}	1060	}
		1061	#endif
862		1062
863	inline int	1063	inline int
864	time_update_monotonic (EV_P)	1064	time_update_monotonic (EV_P)
865	{	1065	{
866	mn_now = get_clock ();	1066	mn_now = get_clock ();
867		1067
868	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1068	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
869	{	1069	{
870	rt_now = rtmn_diff + mn_now;	1070	ev_rt_now = rtmn_diff + mn_now;
871	return 0;	1071	return 0;
872	}	1072	}
873	else	1073	else
874	{	1074	{
875	now_floor = mn_now;	1075	now_floor = mn_now;
876	rt_now = ev_time ();	1076	ev_rt_now = ev_time ();
877	return 1;	1077	return 1;
878	}	1078	}
879	}	1079	}
880		1080
881	static void	1081	static void
…		…
890	{	1090	{
891	ev_tstamp odiff = rtmn_diff;	1091	ev_tstamp odiff = rtmn_diff;
892		1092
893	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1093	for (i = 4; --i; ) /* loop a few times, before making important decisions */
894	{	1094	{
895	rtmn_diff = rt_now - mn_now;	1095	rtmn_diff = ev_rt_now - mn_now;
896		1096
897	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1097	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
898	return; /* all is well */	1098	return; /* all is well */
899		1099
900	rt_now = ev_time ();	1100	ev_rt_now = ev_time ();
901	mn_now = get_clock ();	1101	mn_now = get_clock ();
902	now_floor = mn_now;	1102	now_floor = mn_now;
903	}	1103	}
904		1104
		1105	# if EV_PERIODICS
905	periodics_reschedule (EV_A);	1106	periodics_reschedule (EV_A);
		1107	# endif
906	/* no timer adjustment, as the monotonic clock doesn't jump */	1108	/* no timer adjustment, as the monotonic clock doesn't jump */
907	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1109	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
908	}	1110	}
909	}	1111	}
910	else	1112	else
911	#endif	1113	#endif
912	{	1114	{
913	rt_now = ev_time ();	1115	ev_rt_now = ev_time ();
914		1116
915	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1117	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
916	{	1118	{
		1119	#if EV_PERIODICS
917	periodics_reschedule (EV_A);	1120	periodics_reschedule (EV_A);
		1121	#endif
918		1122
919	/* adjust timers. this is easy, as the offset is the same for all */	1123	/* adjust timers. this is easy, as the offset is the same for all */
920	for (i = 0; i < timercnt; ++i)	1124	for (i = 0; i < timercnt; ++i)
921	timers [i]->at += rt_now - mn_now;	1125	((WT)timers [i])->at += ev_rt_now - mn_now;
922	}	1126	}
923		1127
924	mn_now = rt_now;	1128	mn_now = ev_rt_now;
925	}	1129	}
926	}	1130	}
927		1131
928	void	1132	void
929	ev_ref (EV_P)	1133	ev_ref (EV_P)
…		…
952	{	1156	{
953	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1157	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
954	call_pending (EV_A);	1158	call_pending (EV_A);
955	}	1159	}
956		1160
		1161	/* we might have forked, so reify kernel state if necessary */
		1162	if (expect_false (postfork))
		1163	loop_fork (EV_A);
		1164
957	/* update fd-related kernel structures */	1165	/* update fd-related kernel structures */
958	fd_reify (EV_A);	1166	fd_reify (EV_A);
959		1167
960	/* calculate blocking time */	1168	/* calculate blocking time */
961		1169
962	/* we only need this for !monotonic clockor timers, but as we basically	1170	/* we only need this for !monotonic clock or timers, but as we basically
963	always have timers, we just calculate it always */	1171	always have timers, we just calculate it always */
964	#if EV_USE_MONOTONIC	1172	#if EV_USE_MONOTONIC
965	if (expect_true (have_monotonic))	1173	if (expect_true (have_monotonic))
966	time_update_monotonic (EV_A);	1174	time_update_monotonic (EV_A);
967	else	1175	else
968	#endif	1176	#endif
969	{	1177	{
970	rt_now = ev_time ();	1178	ev_rt_now = ev_time ();
971	mn_now = rt_now;	1179	mn_now = ev_rt_now;
972	}	1180	}
973		1181
974	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1182	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
975	block = 0.;	1183	block = 0.;
976	else	1184	else
977	{	1185	{
978	block = MAX_BLOCKTIME;	1186	block = MAX_BLOCKTIME;
979		1187
980	if (timercnt)	1188	if (timercnt)
981	{	1189	{
982	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1190	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
983	if (block > to) block = to;	1191	if (block > to) block = to;
984	}	1192	}
985		1193
		1194	#if EV_PERIODICS
986	if (periodiccnt)	1195	if (periodiccnt)
987	{	1196	{
988	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1197	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
989	if (block > to) block = to;	1198	if (block > to) block = to;
990	}	1199	}
		1200	#endif
991		1201
992	if (block < 0.) block = 0.;	1202	if (block < 0.) block = 0.;
993	}	1203	}
994		1204
995	method_poll (EV_A_ block);	1205	method_poll (EV_A_ block);
996		1206
997	/* update rt_now, do magic */	1207	/* update ev_rt_now, do magic */
998	time_update (EV_A);	1208	time_update (EV_A);
999		1209
1000	/* queue pending timers and reschedule them */	1210	/* queue pending timers and reschedule them */
1001	timers_reify (EV_A); /* relative timers called last */	1211	timers_reify (EV_A); /* relative timers called last */
		1212	#if EV_PERIODICS
1002	periodics_reify (EV_A); /* absolute timers called first */	1213	periodics_reify (EV_A); /* absolute timers called first */
		1214	#endif
1003		1215
1004	/* queue idle watchers unless io or timers are pending */	1216	/* queue idle watchers unless io or timers are pending */
1005	if (!pendingcnt)	1217	if (idlecnt && !any_pending (EV_A))
1006	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1218	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1007		1219
1008	/* queue check watchers, to be executed first */	1220	/* queue check watchers, to be executed first */
1009	if (checkcnt)	1221	if (checkcnt)
1010	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1222	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1085	return;	1297	return;
1086		1298
1087	assert (("ev_io_start called with negative fd", fd >= 0));	1299	assert (("ev_io_start called with negative fd", fd >= 0));
1088		1300
1089	ev_start (EV_A_ (W)w, 1);	1301	ev_start (EV_A_ (W)w, 1);
1090	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1302	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1091	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1303	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1092		1304
1093	fd_change (EV_A_ fd);	1305	fd_change (EV_A_ fd);
1094	}	1306	}
1095		1307
…		…
1098	{	1310	{
1099	ev_clear_pending (EV_A_ (W)w);	1311	ev_clear_pending (EV_A_ (W)w);
1100	if (!ev_is_active (w))	1312	if (!ev_is_active (w))
1101	return;	1313	return;
1102		1314
		1315	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1316
1103	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1317	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1104	ev_stop (EV_A_ (W)w);	1318	ev_stop (EV_A_ (W)w);
1105		1319
1106	fd_change (EV_A_ w->fd);	1320	fd_change (EV_A_ w->fd);
1107	}	1321	}
…		…
1110	ev_timer_start (EV_P_ struct ev_timer *w)	1324	ev_timer_start (EV_P_ struct ev_timer *w)
1111	{	1325	{
1112	if (ev_is_active (w))	1326	if (ev_is_active (w))
1113	return;	1327	return;
1114		1328
1115	w->at += mn_now;	1329	((WT)w)->at += mn_now;
1116		1330
1117	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1331	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1118		1332
1119	ev_start (EV_A_ (W)w, ++timercnt);	1333	ev_start (EV_A_ (W)w, ++timercnt);
1120	array_needsize (timers, timermax, timercnt, );	1334	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1121	timers [timercnt - 1] = w;	1335	timers [timercnt - 1] = w;
1122	upheap ((WT *)timers, timercnt - 1);	1336	upheap ((WT *)timers, timercnt - 1);
		1337
		1338	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1123	}	1339	}
1124		1340
1125	void	1341	void
1126	ev_timer_stop (EV_P_ struct ev_timer *w)	1342	ev_timer_stop (EV_P_ struct ev_timer *w)
1127	{	1343	{
1128	ev_clear_pending (EV_A_ (W)w);	1344	ev_clear_pending (EV_A_ (W)w);
1129	if (!ev_is_active (w))	1345	if (!ev_is_active (w))
1130	return;	1346	return;
1131		1347
		1348	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1349
1132	if (w->active < timercnt--)	1350	if (((W)w)->active < timercnt--)
1133	{	1351	{
1134	timers [w->active - 1] = timers [timercnt];	1352	timers [((W)w)->active - 1] = timers [timercnt];
1135	downheap ((WT *)timers, timercnt, w->active - 1);	1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1136	}	1354	}
1137		1355
1138	w->at = w->repeat;	1356	((WT)w)->at -= mn_now;
1139		1357
1140	ev_stop (EV_A_ (W)w);	1358	ev_stop (EV_A_ (W)w);
1141	}	1359	}
1142		1360
1143	void	1361	void
…		…
1145	{	1363	{
1146	if (ev_is_active (w))	1364	if (ev_is_active (w))
1147	{	1365	{
1148	if (w->repeat)	1366	if (w->repeat)
1149	{	1367	{
1150	w->at = mn_now + w->repeat;	1368	((WT)w)->at = mn_now + w->repeat;
1151	downheap ((WT *)timers, timercnt, w->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1152	}	1370	}
1153	else	1371	else
1154	ev_timer_stop (EV_A_ w);	1372	ev_timer_stop (EV_A_ w);
1155	}	1373	}
1156	else if (w->repeat)	1374	else if (w->repeat)
1157	ev_timer_start (EV_A_ w);	1375	ev_timer_start (EV_A_ w);
1158	}	1376	}
1159		1377
		1378	#if EV_PERIODICS
1160	void	1379	void
1161	ev_periodic_start (EV_P_ struct ev_periodic *w)	1380	ev_periodic_start (EV_P_ struct ev_periodic *w)
1162	{	1381	{
1163	if (ev_is_active (w))	1382	if (ev_is_active (w))
1164	return;	1383	return;
1165		1384
		1385	if (w->reschedule_cb)
		1386	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1387	else if (w->interval)
		1388	{
1166	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1389	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1167
1168	/* this formula differs from the one in periodic_reify because we do not always round up */	1390	/* this formula differs from the one in periodic_reify because we do not always round up */
1169	if (w->interval)
1170	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1391	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1392	}
1171		1393
1172	ev_start (EV_A_ (W)w, ++periodiccnt);	1394	ev_start (EV_A_ (W)w, ++periodiccnt);
1173	array_needsize (periodics, periodicmax, periodiccnt, );	1395	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1174	periodics [periodiccnt - 1] = w;	1396	periodics [periodiccnt - 1] = w;
1175	upheap ((WT *)periodics, periodiccnt - 1);	1397	upheap ((WT *)periodics, periodiccnt - 1);
		1398
		1399	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1176	}	1400	}
1177		1401
1178	void	1402	void
1179	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1403	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1180	{	1404	{
1181	ev_clear_pending (EV_A_ (W)w);	1405	ev_clear_pending (EV_A_ (W)w);
1182	if (!ev_is_active (w))	1406	if (!ev_is_active (w))
1183	return;	1407	return;
1184		1408
		1409	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1410
1185	if (w->active < periodiccnt--)	1411	if (((W)w)->active < periodiccnt--)
1186	{	1412	{
1187	periodics [w->active - 1] = periodics [periodiccnt];	1413	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1188	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1414	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1189	}	1415	}
1190		1416
1191	ev_stop (EV_A_ (W)w);	1417	ev_stop (EV_A_ (W)w);
1192	}	1418	}
1193		1419
1194	void	1420	void
		1421	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1422	{
		1423	/* TODO: use adjustheap and recalculation */
		1424	ev_periodic_stop (EV_A_ w);
		1425	ev_periodic_start (EV_A_ w);
		1426	}
		1427	#endif
		1428
		1429	void
1195	ev_idle_start (EV_P_ struct ev_idle *w)	1430	ev_idle_start (EV_P_ struct ev_idle *w)
1196	{	1431	{
1197	if (ev_is_active (w))	1432	if (ev_is_active (w))
1198	return;	1433	return;
1199		1434
1200	ev_start (EV_A_ (W)w, ++idlecnt);	1435	ev_start (EV_A_ (W)w, ++idlecnt);
1201	array_needsize (idles, idlemax, idlecnt, );	1436	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1202	idles [idlecnt - 1] = w;	1437	idles [idlecnt - 1] = w;
1203	}	1438	}
1204		1439
1205	void	1440	void
1206	ev_idle_stop (EV_P_ struct ev_idle *w)	1441	ev_idle_stop (EV_P_ struct ev_idle *w)
1207	{	1442	{
1208	ev_clear_pending (EV_A_ (W)w);	1443	ev_clear_pending (EV_A_ (W)w);
1209	if (ev_is_active (w))	1444	if (ev_is_active (w))
1210	return;	1445	return;
1211		1446
1212	idles [w->active - 1] = idles [--idlecnt];	1447	idles [((W)w)->active - 1] = idles [--idlecnt];
1213	ev_stop (EV_A_ (W)w);	1448	ev_stop (EV_A_ (W)w);
1214	}	1449	}
1215		1450
1216	void	1451	void
1217	ev_prepare_start (EV_P_ struct ev_prepare *w)	1452	ev_prepare_start (EV_P_ struct ev_prepare *w)
1218	{	1453	{
1219	if (ev_is_active (w))	1454	if (ev_is_active (w))
1220	return;	1455	return;
1221		1456
1222	ev_start (EV_A_ (W)w, ++preparecnt);	1457	ev_start (EV_A_ (W)w, ++preparecnt);
1223	array_needsize (prepares, preparemax, preparecnt, );	1458	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1224	prepares [preparecnt - 1] = w;	1459	prepares [preparecnt - 1] = w;
1225	}	1460	}
1226		1461
1227	void	1462	void
1228	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1463	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1229	{	1464	{
1230	ev_clear_pending (EV_A_ (W)w);	1465	ev_clear_pending (EV_A_ (W)w);
1231	if (ev_is_active (w))	1466	if (ev_is_active (w))
1232	return;	1467	return;
1233		1468
1234	prepares [w->active - 1] = prepares [--preparecnt];	1469	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1235	ev_stop (EV_A_ (W)w);	1470	ev_stop (EV_A_ (W)w);
1236	}	1471	}
1237		1472
1238	void	1473	void
1239	ev_check_start (EV_P_ struct ev_check *w)	1474	ev_check_start (EV_P_ struct ev_check *w)
1240	{	1475	{
1241	if (ev_is_active (w))	1476	if (ev_is_active (w))
1242	return;	1477	return;
1243		1478
1244	ev_start (EV_A_ (W)w, ++checkcnt);	1479	ev_start (EV_A_ (W)w, ++checkcnt);
1245	array_needsize (checks, checkmax, checkcnt, );	1480	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1246	checks [checkcnt - 1] = w;	1481	checks [checkcnt - 1] = w;
1247	}	1482	}
1248		1483
1249	void	1484	void
1250	ev_check_stop (EV_P_ struct ev_check *w)	1485	ev_check_stop (EV_P_ struct ev_check *w)
1251	{	1486	{
1252	ev_clear_pending (EV_A_ (W)w);	1487	ev_clear_pending (EV_A_ (W)w);
1253	if (ev_is_active (w))	1488	if (!ev_is_active (w))
1254	return;	1489	return;
1255		1490
1256	checks [w->active - 1] = checks [--checkcnt];	1491	checks [((W)w)->active - 1] = checks [--checkcnt];
1257	ev_stop (EV_A_ (W)w);	1492	ev_stop (EV_A_ (W)w);
1258	}	1493	}
1259		1494
1260	#ifndef SA_RESTART	1495	#ifndef SA_RESTART
1261	# define SA_RESTART 0	1496	# define SA_RESTART 0
…		…
1271	return;	1506	return;
1272		1507
1273	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1508	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1274		1509
1275	ev_start (EV_A_ (W)w, 1);	1510	ev_start (EV_A_ (W)w, 1);
1276	array_needsize (signals, signalmax, w->signum, signals_init);	1511	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1277	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1512	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1278		1513
1279	if (!w->next)	1514	if (!((WL)w)->next)
1280	{	1515	{
		1516	#if WIN32
		1517	signal (w->signum, sighandler);
		1518	#else
1281	struct sigaction sa;	1519	struct sigaction sa;
1282	sa.sa_handler = sighandler;	1520	sa.sa_handler = sighandler;
1283	sigfillset (&sa.sa_mask);	1521	sigfillset (&sa.sa_mask);
1284	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1522	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1285	sigaction (w->signum, &sa, 0);	1523	sigaction (w->signum, &sa, 0);
		1524	#endif
1286	}	1525	}
1287	}	1526	}
1288		1527
1289	void	1528	void
1290	ev_signal_stop (EV_P_ struct ev_signal *w)	1529	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1315		1554
1316	void	1555	void
1317	ev_child_stop (EV_P_ struct ev_child *w)	1556	ev_child_stop (EV_P_ struct ev_child *w)
1318	{	1557	{
1319	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1320	if (ev_is_active (w))	1559	if (!ev_is_active (w))
1321	return;	1560	return;
1322		1561
1323	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1562	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1324	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1325	}	1564	}
…		…
1340	void (cb)(int revents, void arg) = once->cb;	1579	void (cb)(int revents, void arg) = once->cb;
1341	void *arg = once->arg;	1580	void *arg = once->arg;
1342		1581
1343	ev_io_stop (EV_A_ &once->io);	1582	ev_io_stop (EV_A_ &once->io);
1344	ev_timer_stop (EV_A_ &once->to);	1583	ev_timer_stop (EV_A_ &once->to);
1345	free (once);	1584	ev_free (once);
1346		1585
1347	cb (revents, arg);	1586	cb (revents, arg);
1348	}	1587	}
1349		1588
1350	static void	1589	static void
…		…
1360	}	1599	}
1361		1600
1362	void	1601	void
1363	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1602	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1364	{	1603	{
1365	struct ev_once *once = malloc (sizeof (struct ev_once));	1604	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1366		1605
1367	if (!once)	1606	if (!once)
1368	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1607	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1369	else	1608	else
1370	{	1609	{
1371	once->cb = cb;	1610	once->cb = cb;
1372	once->arg = arg;	1611	once->arg = arg;
1373		1612
1374	ev_watcher_init (&once->io, once_cb_io);	1613	ev_init (&once->io, once_cb_io);
1375	if (fd >= 0)	1614	if (fd >= 0)
1376	{	1615	{
1377	ev_io_set (&once->io, fd, events);	1616	ev_io_set (&once->io, fd, events);
1378	ev_io_start (EV_A_ &once->io);	1617	ev_io_start (EV_A_ &once->io);
1379	}	1618	}
1380		1619
1381	ev_watcher_init (&once->to, once_cb_to);	1620	ev_init (&once->to, once_cb_to);
1382	if (timeout >= 0.)	1621	if (timeout >= 0.)
1383	{	1622	{
1384	ev_timer_set (&once->to, timeout, 0.);	1623	ev_timer_set (&once->to, timeout, 0.);
1385	ev_timer_start (EV_A_ &once->to);	1624	ev_timer_start (EV_A_ &once->to);
1386	}	1625	}
1387	}	1626	}
1388	}	1627	}
1389		1628
		1629	#ifdef __cplusplus
		1630	}
		1631	#endif
		1632

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Comparing libev/ev.c (file contents): Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs. Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs.
Revision 1.99 by root, Sun Nov 11 02:26:47 2007 UTC