[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 1.97 by root, Sun Nov 11 01:53:07 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
53	# endif	62	# endif
54		63
55	#endif	64	#endif
56		65
57	#include <math.h>	66	#include <math.h>
58	#include <stdlib.h>	67	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	68	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	69	#include <stddef.h>
63		70
64	#include <stdio.h>	71	#include <stdio.h>
65		72
66	#include <assert.h>	73	#include <assert.h>
67	#include <errno.h>	74	#include <errno.h>
68	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
69	#ifndef WIN32	80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
70	# include <sys/wait.h>	83	# include <sys/wait.h>
71	#endif	84	#endif
72	#include <sys/time.h>
73	#include <time.h>
74
75	/**/	85	/**/
76		86
77	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
79	#endif	89	#endif
…		…
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	#include "ev_win32.c"
		167
142	/*****************************************************************************/	168	/*****************************************************************************/
143		169
		170	static void (syserr_cb)(const char msg);
		171
		172	void ev_set_syserr_cb (void (cb)(const char msg))
		173	{
		174	syserr_cb = cb;
		175	}
		176
		177	static void
		178	syserr (const char *msg)
		179	{
		180	if (!msg)
		181	msg = "(libev) system error";
		182
		183	if (syserr_cb)
		184	syserr_cb (msg);
		185	else
		186	{
		187	perror (msg);
		188	abort ();
		189	}
		190	}
		191
		192	static void (alloc)(void *ptr, long size);
		193
		194	void ev_set_allocator (void (cb)(void *ptr, long size))
		195	{
		196	alloc = cb;
		197	}
		198
		199	static void *
		200	ev_realloc (void *ptr, long size)
		201	{
		202	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		203
		204	if (!ptr && size)
		205	{
		206	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		207	abort ();
		208	}
		209
		210	return ptr;
		211	}
		212
		213	#define ev_malloc(size) ev_realloc (0, (size))
		214	#define ev_free(ptr) ev_realloc ((ptr), 0)
		215
		216	/*****************************************************************************/
		217
144	typedef struct	218	typedef struct
145	{	219	{
146	struct ev_watcher_list *head;	220	WL head;
147	unsigned char events;	221	unsigned char events;
148	unsigned char reify;	222	unsigned char reify;
149	} ANFD;	223	} ANFD;
150		224
151	typedef struct	225	typedef struct
…		…
154	int events;	228	int events;
155	} ANPENDING;	229	} ANPENDING;
156		230
157	#if EV_MULTIPLICITY	231	#if EV_MULTIPLICITY
158		232
159	struct ev_loop	233	struct ev_loop
160	{	234	{
		235	ev_tstamp ev_rt_now;
161	# define VAR(name,decl) decl;	236	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	237	#include "ev_vars.h"
163	};
164	# undef VAR	238	#undef VAR
		239	};
165	# include "ev_wrap.h"	240	#include "ev_wrap.h"
		241
		242	struct ev_loop default_loop_struct;
		243	static struct ev_loop *default_loop;
166		244
167	#else	245	#else
168		246
		247	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	248	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	249	#include "ev_vars.h"
171	# undef VAR	250	#undef VAR
		251
		252	static int default_loop;
172		253
173	#endif	254	#endif
174		255
175	/*****************************************************************************/	256	/*****************************************************************************/
176		257
177	inline ev_tstamp	258	ev_tstamp
178	ev_time (void)	259	ev_time (void)
179	{	260	{
180	#if EV_USE_REALTIME	261	#if EV_USE_REALTIME
181	struct timespec ts;	262	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	263	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	282	#endif
202		283
203	return ev_time ();	284	return ev_time ();
204	}	285	}
205		286
		287	#if EV_MULTIPLICITY
206	ev_tstamp	288	ev_tstamp
207	ev_now (EV_P)	289	ev_now (EV_P)
208	{	290	{
209	return rt_now;	291	return ev_rt_now;
210	}	292	}
		293	#endif
211		294
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	295	#define array_roundsize(type,n) ((n) \| 4 & ~3)
213		296
214	#define array_needsize(base,cur,cnt,init) \	297	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	298	if (expect_false ((cnt) > cur)) \
216	{ \	299	{ \
217	int newcnt = cur; \	300	int newcnt = cur; \
218	do \	301	do \
219	{ \	302	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	303	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	304	} \
222	while ((cnt) > newcnt); \	305	while ((cnt) > newcnt); \
223	\	306	\
224	base = realloc (base, sizeof (base) (newcnt)); \	307	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	308	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	309	cur = newcnt; \
227	}	310	}
		311
		312	#define array_slim(type,stem) \
		313	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		314	{ \
		315	stem ## max = array_roundsize (stem ## cnt >> 1); \
		316	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		317	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		318	}
		319
		320	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		321	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		322	#define array_free_microshit(stem) \
		323	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		324
		325	#define array_free(stem, idx) \
		326	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		327
229	/*****************************************************************************/	328	/*****************************************************************************/
230		329
231	static void	330	static void
232	anfds_init (ANFD *base, int count)	331	anfds_init (ANFD *base, int count)
…		…
239		338
240	++base;	339	++base;
241	}	340	}
242	}	341	}
243		342
244	static void	343	void
245	event (EV_P_ W w, int events)	344	ev_feed_event (EV_P_ void *w, int revents)
246	{	345	{
		346	W w_ = (W)w;
		347
247	if (w->pending)	348	if (w_->pending)
248	{	349	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	350	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	351	return;
251	}	352	}
252		353
253	w->pending = ++pendingcnt [ABSPRI (w)];	354	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	355	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	356	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	357	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	358	}
258		359
259	static void	360	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	361	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	362	{
262	int i;	363	int i;
263		364
264	for (i = 0; i < eventcnt; ++i)	365	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	366	ev_feed_event (EV_A_ events [i], type);
266	}	367	}
267		368
268	static void	369	inline void
269	fd_event (EV_P_ int fd, int events)	370	fd_event (EV_P_ int fd, int revents)
270	{	371	{
271	ANFD *anfd = anfds + fd;	372	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	373	struct ev_io *w;
273		374
274	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
275	{	376	{
276	int ev = w->events & events;	377	int ev = w->events & revents;
277		378
278	if (ev)	379	if (ev)
279	event (EV_A_ (W)w, ev);	380	ev_feed_event (EV_A_ (W)w, ev);
280	}	381	}
		382	}
		383
		384	void
		385	ev_feed_fd_event (EV_P_ int fd, int revents)
		386	{
		387	fd_event (EV_A_ fd, revents);
281	}	388	}
282		389
283	/*****************************************************************************/	390	/*****************************************************************************/
284		391
285	static void	392	static void
…		…
298	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	405	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
299	events \|= w->events;	406	events \|= w->events;
300		407
301	anfd->reify = 0;	408	anfd->reify = 0;
302		409
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	410	method_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	411	anfd->events = events;
307	}
308	}	412	}
309		413
310	fdchangecnt = 0;	414	fdchangecnt = 0;
311	}	415	}
312		416
313	static void	417	static void
314	fd_change (EV_P_ int fd)	418	fd_change (EV_P_ int fd)
315	{	419	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	420	if (anfds [fd].reify)
317	return;	421	return;
318		422
319	anfds [fd].reify = 1;	423	anfds [fd].reify = 1;
320		424
321	++fdchangecnt;	425	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	426	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
323	fdchanges [fdchangecnt - 1] = fd;	427	fdchanges [fdchangecnt - 1] = fd;
324	}	428	}
325		429
326	static void	430	static void
327	fd_kill (EV_P_ int fd)	431	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	433	struct ev_io *w;
330		434
331	while ((w = (struct ev_io *)anfds [fd].head))	435	while ((w = (struct ev_io *)anfds [fd].head))
332	{	436	{
333	ev_io_stop (EV_A_ w);	437	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	438	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
335	}	439	}
		440	}
		441
		442	static int
		443	fd_valid (int fd)
		444	{
		445	#ifdef WIN32
		446	return !!win32_get_osfhandle (fd);
		447	#else
		448	return fcntl (fd, F_GETFD) != -1;
		449	#endif
336	}	450	}
337		451
338	/* called on EBADF to verify fds */	452	/* called on EBADF to verify fds */
339	static void	453	static void
340	fd_ebadf (EV_P)	454	fd_ebadf (EV_P)
341	{	455	{
342	int fd;	456	int fd;
343		457
344	for (fd = 0; fd < anfdmax; ++fd)	458	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	459	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	460	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	461	fd_kill (EV_A_ fd);
348	}	462	}
349		463
350	/* called on ENOMEM in select/poll to kill some fds and retry */	464	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	465	static void
352	fd_enomem (EV_P)	466	fd_enomem (EV_P)
353	{	467	{
354	int fd = anfdmax;	468	int fd;
355		469
356	while (fd--)	470	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	471	if (anfds [fd].events)
358	{	472	{
359	close (fd);
360	fd_kill (EV_A_ fd);	473	fd_kill (EV_A_ fd);
361	return;	474	return;
362	}	475	}
363	}	476	}
364		477
365	/* susually called after fork if method needs to re-arm all fds from scratch */	478	/* usually called after fork if method needs to re-arm all fds from scratch */
366	static void	479	static void
367	fd_rearm_all (EV_P)	480	fd_rearm_all (EV_P)
368	{	481	{
369	int fd;	482	int fd;
370		483
…		…
385	WT w = heap [k];	498	WT w = heap [k];
386		499
387	while (k && heap [k >> 1]->at > w->at)	500	while (k && heap [k >> 1]->at > w->at)
388	{	501	{
389	heap [k] = heap [k >> 1];	502	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	503	((W)heap [k])->active = k + 1;
391	k >>= 1;	504	k >>= 1;
392	}	505	}
393		506
394	heap [k] = w;	507	heap [k] = w;
395	heap [k]->active = k + 1;	508	((W)heap [k])->active = k + 1;
396		509
397	}	510	}
398		511
399	static void	512	static void
400	downheap (WT *heap, int N, int k)	513	downheap (WT *heap, int N, int k)
…		…
410		523
411	if (w->at <= heap [j]->at)	524	if (w->at <= heap [j]->at)
412	break;	525	break;
413		526
414	heap [k] = heap [j];	527	heap [k] = heap [j];
415	heap [k]->active = k + 1;	528	((W)heap [k])->active = k + 1;
416	k = j;	529	k = j;
417	}	530	}
418		531
419	heap [k] = w;	532	heap [k] = w;
420	heap [k]->active = k + 1;	533	((W)heap [k])->active = k + 1;
		534	}
		535
		536	inline void
		537	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		538	{
		539	ev_tstamp old_at = heap [k]->at;
		540	heap [k]->at = at;
		541
		542	if (old_at < at)
		543	downheap (heap, N, k);
		544	else
		545	upheap (heap, k);
421	}	546	}
422		547
423	/*****************************************************************************/	548	/*****************************************************************************/
424		549
425	typedef struct	550	typedef struct
426	{	551	{
427	struct ev_watcher_list *head;	552	WL head;
428	sig_atomic_t volatile gotsig;	553	sig_atomic_t volatile gotsig;
429	} ANSIG;	554	} ANSIG;
430		555
431	static ANSIG *signals;	556	static ANSIG *signals;
432	static int signalmax;	557	static int signalmax;
…		…
448	}	573	}
449		574
450	static void	575	static void
451	sighandler (int signum)	576	sighandler (int signum)
452	{	577	{
		578	#if WIN32
		579	signal (signum, sighandler);
		580	#endif
		581
453	signals [signum - 1].gotsig = 1;	582	signals [signum - 1].gotsig = 1;
454		583
455	if (!gotsig)	584	if (!gotsig)
456	{	585	{
457	int old_errno = errno;	586	int old_errno = errno;
458	gotsig = 1;	587	gotsig = 1;
		588	#ifdef WIN32
		589	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		590	#else
459	write (sigpipe [1], &signum, 1);	591	write (sigpipe [1], &signum, 1);
		592	#endif
460	errno = old_errno;	593	errno = old_errno;
461	}	594	}
462	}	595	}
463		596
		597	void
		598	ev_feed_signal_event (EV_P_ int signum)
		599	{
		600	WL w;
		601
		602	#if EV_MULTIPLICITY
		603	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		604	#endif
		605
		606	--signum;
		607
		608	if (signum < 0 \|\| signum >= signalmax)
		609	return;
		610
		611	signals [signum].gotsig = 0;
		612
		613	for (w = signals [signum].head; w; w = w->next)
		614	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		615	}
		616
464	static void	617	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	618	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	619	{
467	struct ev_watcher_list *w;
468	int signum;	620	int signum;
469		621
		622	#ifdef WIN32
		623	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		624	#else
470	read (sigpipe [0], &revents, 1);	625	read (sigpipe [0], &revents, 1);
		626	#endif
471	gotsig = 0;	627	gotsig = 0;
472		628
473	for (signum = signalmax; signum--; )	629	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	630	if (signals [signum].gotsig)
475	{	631	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	}	632	}
482		633
483	static void	634	static void
484	siginit (EV_P)	635	siginit (EV_P)
485	{	636	{
…		…
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	648	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	649	}
499		650
500	/*****************************************************************************/	651	/*****************************************************************************/
501		652
		653	static struct ev_child *childs [PID_HASHSIZE];
		654
502	#ifndef WIN32	655	#ifndef WIN32
503		656
504	static struct ev_child *childs [PID_HASHSIZE];
505	static struct ev_signal childev;	657	static struct ev_signal childev;
506		658
507	#ifndef WCONTINUED	659	#ifndef WCONTINUED
508	# define WCONTINUED 0	660	# define WCONTINUED 0
509	#endif	661	#endif
…		…
514	struct ev_child *w;	666	struct ev_child *w;
515		667
516	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	668	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
517	if (w->pid == pid \|\| !w->pid)	669	if (w->pid == pid \|\| !w->pid)
518	{	670	{
519	w->priority = sw->priority; /* need to do it now */	671	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	672	w->rpid = pid;
521	w->rstatus = status;	673	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	674	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	675	}
524	}	676	}
525		677
526	static void	678	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	679	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	681	int pid, status;
530		682
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	683	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	684	{
533	/* make sure we are called again until all childs have been reaped */	685	/* make sure we are called again until all childs have been reaped */
534	event (EV_A_ (W)sw, EV_SIGNAL);	686	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		687
536	child_reap (EV_A_ sw, pid, pid, status);	688	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 */	689	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
538	}	690	}
539	}	691	}
…		…
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	748	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	749	have_monotonic = 1;
598	}	750	}
599	#endif	751	#endif
600		752
601	rt_now = ev_time ();	753	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	754	mn_now = get_clock ();
603	now_floor = mn_now;	755	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	756	rtmn_diff = ev_rt_now - mn_now;
605		757
606	if (methods == EVMETHOD_AUTO)	758	if (methods == EVMETHOD_AUTO)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	759	if (!enable_secure () && getenv ("LIBEV_METHODS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	760	methods = atoi (getenv ("LIBEV_METHODS"));
609	else	761	else
610	methods = EVMETHOD_ANY;	762	methods = EVMETHOD_ANY;
611		763
612	method = 0;	764	method = 0;
		765	#if EV_USE_WIN32
		766	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		767	#endif
613	#if EV_USE_KQUEUE	768	#if EV_USE_KQUEUE
614	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	769	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
615	#endif	770	#endif
616	#if EV_USE_EPOLL	771	#if EV_USE_EPOLL
617	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	772	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
…		…
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	775	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
621	#endif	776	#endif
622	#if EV_USE_SELECT	777	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	778	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
624	#endif	779	#endif
		780
		781	ev_init (&sigev, sigcb);
		782	ev_set_priority (&sigev, EV_MAXPRI);
625	}	783	}
626	}	784	}
627		785
628	void	786	void
629	loop_destroy (EV_P)	787	loop_destroy (EV_P)
630	{	788	{
		789	int i;
		790
		791	#if EV_USE_WIN32
		792	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		793	#endif
631	#if EV_USE_KQUEUE	794	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633	#endif	796	#endif
634	#if EV_USE_EPOLL	797	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
639	#endif	802	#endif
640	#if EV_USE_SELECT	803	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642	#endif	805	#endif
643		806
		807	for (i = NUMPRI; i--; )
		808	array_free (pending, [i]);
		809
		810	/* have to use the microsoft-never-gets-it-right macro */
		811	array_free_microshit (fdchange);
		812	array_free_microshit (timer);
		813	#if EV_PERIODICS
		814	array_free_microshit (periodic);
		815	#endif
		816	array_free_microshit (idle);
		817	array_free_microshit (prepare);
		818	array_free_microshit (check);
		819
644	method = 0;	820	method = 0;
645	/TODO/
646	}	821	}
647		822
648	void	823	static void
649	loop_fork (EV_P)	824	loop_fork (EV_P)
650	{	825	{
651	/TODO/
652	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654	#endif	828	#endif
655	#if EV_USE_KQUEUE	829	#if EV_USE_KQUEUE
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
657	#endif	831	#endif
		832
		833	if (ev_is_active (&sigev))
		834	{
		835	/* default loop */
		836
		837	ev_ref (EV_A);
		838	ev_io_stop (EV_A_ &sigev);
		839	close (sigpipe [0]);
		840	close (sigpipe [1]);
		841
		842	while (pipe (sigpipe))
		843	syserr ("(libev) error creating pipe");
		844
		845	siginit (EV_A);
		846	}
		847
		848	postfork = 0;
658	}	849	}
659		850
660	#if EV_MULTIPLICITY	851	#if EV_MULTIPLICITY
661	struct ev_loop *	852	struct ev_loop *
662	ev_loop_new (int methods)	853	ev_loop_new (int methods)
663	{	854	{
664	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	855	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		856
		857	memset (loop, 0, sizeof (struct ev_loop));
665		858
666	loop_init (EV_A_ methods);	859	loop_init (EV_A_ methods);
667		860
668	if (ev_method (EV_A))	861	if (ev_method (EV_A))
669	return loop;	862	return loop;
…		…
673		866
674	void	867	void
675	ev_loop_destroy (EV_P)	868	ev_loop_destroy (EV_P)
676	{	869	{
677	loop_destroy (EV_A);	870	loop_destroy (EV_A);
678	free (loop);	871	ev_free (loop);
679	}	872	}
680		873
681	void	874	void
682	ev_loop_fork (EV_P)	875	ev_loop_fork (EV_P)
683	{	876	{
684	loop_fork (EV_A);	877	postfork = 1;
685	}	878	}
686		879
687	#endif	880	#endif
688		881
689	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	883	struct ev_loop *
694	#else	884	#else
695	static int default_loop;
696
697	int	885	int
698	#endif	886	#endif
699	ev_default_loop (int methods)	887	ev_default_loop (int methods)
700	{	888	{
701	if (sigpipe [0] == sigpipe [1])	889	if (sigpipe [0] == sigpipe [1])
…		…
712		900
713	loop_init (EV_A_ methods);	901	loop_init (EV_A_ methods);
714		902
715	if (ev_method (EV_A))	903	if (ev_method (EV_A))
716	{	904	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	905	siginit (EV_A);
720		906
721	#ifndef WIN32	907	#ifndef WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	908	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	909	ev_set_priority (&childev, EV_MAXPRI);
…		…
737	{	923	{
738	#if EV_MULTIPLICITY	924	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	925	struct ev_loop *loop = default_loop;
740	#endif	926	#endif
741		927
		928	#ifndef WIN32
742	ev_ref (EV_A); /* child watcher */	929	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	930	ev_signal_stop (EV_A_ &childev);
		931	#endif
744		932
745	ev_ref (EV_A); /* signal watcher */	933	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	934	ev_io_stop (EV_A_ &sigev);
747		935
748	close (sigpipe [0]); sigpipe [0] = 0;	936	close (sigpipe [0]); sigpipe [0] = 0;
…		…
756	{	944	{
757	#if EV_MULTIPLICITY	945	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	946	struct ev_loop *loop = default_loop;
759	#endif	947	#endif
760		948
761	loop_fork (EV_A);	949	if (method)
762		950	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	}	951	}
771		952
772	/*****************************************************************************/	953	/*****************************************************************************/
		954
		955	static int
		956	any_pending (EV_P)
		957	{
		958	int pri;
		959
		960	for (pri = NUMPRI; pri--; )
		961	if (pendingcnt [pri])
		962	return 1;
		963
		964	return 0;
		965	}
773		966
774	static void	967	static void
775	call_pending (EV_P)	968	call_pending (EV_P)
776	{	969	{
777	int pri;	970	int pri;
…		…
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		976
784	if (p->w)	977	if (p->w)
785	{	978	{
786	p->w->pending = 0;	979	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	980	EV_CB_INVOKE (p->w, p->events);
788	}	981	}
789	}	982	}
790	}	983	}
791		984
792	static void	985	static void
793	timers_reify (EV_P)	986	timers_reify (EV_P)
794	{	987	{
795	while (timercnt && timers [0]->at <= mn_now)	988	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	989	{
797	struct ev_timer *w = timers [0];	990	struct ev_timer *w = timers [0];
798		991
799	assert (("inactive timer on timer heap detected", ev_is_active (w)));	992	assert (("inactive timer on timer heap detected", ev_is_active (w)));
800		993
801	/* first reschedule or stop timer */	994	/* first reschedule or stop timer */
802	if (w->repeat)	995	if (w->repeat)
803	{	996	{
804	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	997	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		998
805	w->at = mn_now + w->repeat;	999	((WT)w)->at += w->repeat;
		1000	if (((WT)w)->at < mn_now)
		1001	((WT)w)->at = mn_now;
		1002
806	downheap ((WT *)timers, timercnt, 0);	1003	downheap ((WT *)timers, timercnt, 0);
807	}	1004	}
808	else	1005	else
809	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1006	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
810		1007
811	event (EV_A_ (W)w, EV_TIMEOUT);	1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
812	}	1009	}
813	}	1010	}
814		1011
		1012	#if EV_PERIODICS
815	static void	1013	static void
816	periodics_reify (EV_P)	1014	periodics_reify (EV_P)
817	{	1015	{
818	while (periodiccnt && periodics [0]->at <= rt_now)	1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
819	{	1017	{
820	struct ev_periodic *w = periodics [0];	1018	struct ev_periodic *w = periodics [0];
821		1019
822	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
823		1021
824	/* first reschedule or stop timer */	1022	/* first reschedule or stop timer */
825	if (w->interval)	1023	if (w->reschedule_cb)
826	{	1024	{
		1025	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1026
		1027	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1028	downheap ((WT *)periodics, periodiccnt, 0);
		1029	}
		1030	else if (w->interval)
		1031	{
827	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1032	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
828	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1033	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
829	downheap ((WT *)periodics, periodiccnt, 0);	1034	downheap ((WT *)periodics, periodiccnt, 0);
830	}	1035	}
831	else	1036	else
832	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1037	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
833		1038
834	event (EV_A_ (W)w, EV_PERIODIC);	1039	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
835	}	1040	}
836	}	1041	}
837		1042
838	static void	1043	static void
839	periodics_reschedule (EV_P)	1044	periodics_reschedule (EV_P)
…		…
843	/* adjust periodics after time jump */	1048	/* adjust periodics after time jump */
844	for (i = 0; i < periodiccnt; ++i)	1049	for (i = 0; i < periodiccnt; ++i)
845	{	1050	{
846	struct ev_periodic *w = periodics [i];	1051	struct ev_periodic *w = periodics [i];
847		1052
		1053	if (w->reschedule_cb)
		1054	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
848	if (w->interval)	1055	else if (w->interval)
849	{
850	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1056	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
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	}	1057	}
		1058
		1059	/* now rebuild the heap */
		1060	for (i = periodiccnt >> 1; i--; )
		1061	downheap ((WT *)periodics, periodiccnt, i);
861	}	1062	}
		1063	#endif
862		1064
863	inline int	1065	inline int
864	time_update_monotonic (EV_P)	1066	time_update_monotonic (EV_P)
865	{	1067	{
866	mn_now = get_clock ();	1068	mn_now = get_clock ();
867		1069
868	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1070	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
869	{	1071	{
870	rt_now = rtmn_diff + mn_now;	1072	ev_rt_now = rtmn_diff + mn_now;
871	return 0;	1073	return 0;
872	}	1074	}
873	else	1075	else
874	{	1076	{
875	now_floor = mn_now;	1077	now_floor = mn_now;
876	rt_now = ev_time ();	1078	ev_rt_now = ev_time ();
877	return 1;	1079	return 1;
878	}	1080	}
879	}	1081	}
880		1082
881	static void	1083	static void
…		…
890	{	1092	{
891	ev_tstamp odiff = rtmn_diff;	1093	ev_tstamp odiff = rtmn_diff;
892		1094
893	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1095	for (i = 4; --i; ) /* loop a few times, before making important decisions */
894	{	1096	{
895	rtmn_diff = rt_now - mn_now;	1097	rtmn_diff = ev_rt_now - mn_now;
896		1098
897	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1099	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
898	return; /* all is well */	1100	return; /* all is well */
899		1101
900	rt_now = ev_time ();	1102	ev_rt_now = ev_time ();
901	mn_now = get_clock ();	1103	mn_now = get_clock ();
902	now_floor = mn_now;	1104	now_floor = mn_now;
903	}	1105	}
904		1106
		1107	# if EV_PERIODICS
905	periodics_reschedule (EV_A);	1108	periodics_reschedule (EV_A);
		1109	# endif
906	/* no timer adjustment, as the monotonic clock doesn't jump */	1110	/* no timer adjustment, as the monotonic clock doesn't jump */
907	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1111	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
908	}	1112	}
909	}	1113	}
910	else	1114	else
911	#endif	1115	#endif
912	{	1116	{
913	rt_now = ev_time ();	1117	ev_rt_now = ev_time ();
914		1118
915	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1119	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
916	{	1120	{
		1121	#if EV_PERIODICS
917	periodics_reschedule (EV_A);	1122	periodics_reschedule (EV_A);
		1123	#endif
918		1124
919	/* adjust timers. this is easy, as the offset is the same for all */	1125	/* adjust timers. this is easy, as the offset is the same for all */
920	for (i = 0; i < timercnt; ++i)	1126	for (i = 0; i < timercnt; ++i)
921	timers [i]->at += rt_now - mn_now;	1127	((WT)timers [i])->at += ev_rt_now - mn_now;
922	}	1128	}
923		1129
924	mn_now = rt_now;	1130	mn_now = ev_rt_now;
925	}	1131	}
926	}	1132	}
927		1133
928	void	1134	void
929	ev_ref (EV_P)	1135	ev_ref (EV_P)
…		…
952	{	1158	{
953	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
954	call_pending (EV_A);	1160	call_pending (EV_A);
955	}	1161	}
956		1162
		1163	/* we might have forked, so reify kernel state if necessary */
		1164	if (expect_false (postfork))
		1165	loop_fork (EV_A);
		1166
957	/* update fd-related kernel structures */	1167	/* update fd-related kernel structures */
958	fd_reify (EV_A);	1168	fd_reify (EV_A);
959		1169
960	/* calculate blocking time */	1170	/* calculate blocking time */
961		1171
962	/* we only need this for !monotonic clockor timers, but as we basically	1172	/* we only need this for !monotonic clock or timers, but as we basically
963	always have timers, we just calculate it always */	1173	always have timers, we just calculate it always */
964	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
965	if (expect_true (have_monotonic))	1175	if (expect_true (have_monotonic))
966	time_update_monotonic (EV_A);	1176	time_update_monotonic (EV_A);
967	else	1177	else
968	#endif	1178	#endif
969	{	1179	{
970	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
971	mn_now = rt_now;	1181	mn_now = ev_rt_now;
972	}	1182	}
973		1183
974	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
975	block = 0.;	1185	block = 0.;
976	else	1186	else
977	{	1187	{
978	block = MAX_BLOCKTIME;	1188	block = MAX_BLOCKTIME;
979		1189
980	if (timercnt)	1190	if (timercnt)
981	{	1191	{
982	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
983	if (block > to) block = to;	1193	if (block > to) block = to;
984	}	1194	}
985		1195
		1196	#if EV_PERIODICS
986	if (periodiccnt)	1197	if (periodiccnt)
987	{	1198	{
988	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
989	if (block > to) block = to;	1200	if (block > to) block = to;
990	}	1201	}
		1202	#endif
991		1203
992	if (block < 0.) block = 0.;	1204	if (block < 0.) block = 0.;
993	}	1205	}
994		1206
995	method_poll (EV_A_ block);	1207	method_poll (EV_A_ block);
996		1208
997	/* update rt_now, do magic */	1209	/* update ev_rt_now, do magic */
998	time_update (EV_A);	1210	time_update (EV_A);
999		1211
1000	/* queue pending timers and reschedule them */	1212	/* queue pending timers and reschedule them */
1001	timers_reify (EV_A); /* relative timers called last */	1213	timers_reify (EV_A); /* relative timers called last */
		1214	#if EV_PERIODICS
1002	periodics_reify (EV_A); /* absolute timers called first */	1215	periodics_reify (EV_A); /* absolute timers called first */
		1216	#endif
1003		1217
1004	/* queue idle watchers unless io or timers are pending */	1218	/* queue idle watchers unless io or timers are pending */
1005	if (!pendingcnt)	1219	if (idlecnt && !any_pending (EV_A))
1006	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1007		1221
1008	/* queue check watchers, to be executed first */	1222	/* queue check watchers, to be executed first */
1009	if (checkcnt)	1223	if (checkcnt)
1010	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1085	return;	1299	return;
1086		1300
1087	assert (("ev_io_start called with negative fd", fd >= 0));	1301	assert (("ev_io_start called with negative fd", fd >= 0));
1088		1302
1089	ev_start (EV_A_ (W)w, 1);	1303	ev_start (EV_A_ (W)w, 1);
1090	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1304	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1091	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1305	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1092		1306
1093	fd_change (EV_A_ fd);	1307	fd_change (EV_A_ fd);
1094	}	1308	}
1095		1309
…		…
1098	{	1312	{
1099	ev_clear_pending (EV_A_ (W)w);	1313	ev_clear_pending (EV_A_ (W)w);
1100	if (!ev_is_active (w))	1314	if (!ev_is_active (w))
1101	return;	1315	return;
1102		1316
		1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1318
1103	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1104	ev_stop (EV_A_ (W)w);	1320	ev_stop (EV_A_ (W)w);
1105		1321
1106	fd_change (EV_A_ w->fd);	1322	fd_change (EV_A_ w->fd);
1107	}	1323	}
…		…
1110	ev_timer_start (EV_P_ struct ev_timer *w)	1326	ev_timer_start (EV_P_ struct ev_timer *w)
1111	{	1327	{
1112	if (ev_is_active (w))	1328	if (ev_is_active (w))
1113	return;	1329	return;
1114		1330
1115	w->at += mn_now;	1331	((WT)w)->at += mn_now;
1116		1332
1117	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1333	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1118		1334
1119	ev_start (EV_A_ (W)w, ++timercnt);	1335	ev_start (EV_A_ (W)w, ++timercnt);
1120	array_needsize (timers, timermax, timercnt, );	1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1121	timers [timercnt - 1] = w;	1337	timers [timercnt - 1] = w;
1122	upheap ((WT *)timers, timercnt - 1);	1338	upheap ((WT *)timers, timercnt - 1);
		1339
		1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1123	}	1341	}
1124		1342
1125	void	1343	void
1126	ev_timer_stop (EV_P_ struct ev_timer *w)	1344	ev_timer_stop (EV_P_ struct ev_timer *w)
1127	{	1345	{
1128	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1129	if (!ev_is_active (w))	1347	if (!ev_is_active (w))
1130	return;	1348	return;
1131		1349
		1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1351
1132	if (w->active < timercnt--)	1352	if (((W)w)->active < timercnt--)
1133	{	1353	{
1134	timers [w->active - 1] = timers [timercnt];	1354	timers [((W)w)->active - 1] = timers [timercnt];
1135	downheap ((WT *)timers, timercnt, w->active - 1);	1355	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1136	}	1356	}
1137		1357
1138	w->at = w->repeat;	1358	((WT)w)->at -= mn_now;
1139		1359
1140	ev_stop (EV_A_ (W)w);	1360	ev_stop (EV_A_ (W)w);
1141	}	1361	}
1142		1362
1143	void	1363	void
1144	ev_timer_again (EV_P_ struct ev_timer *w)	1364	ev_timer_again (EV_P_ struct ev_timer *w)
1145	{	1365	{
1146	if (ev_is_active (w))	1366	if (ev_is_active (w))
1147	{	1367	{
1148	if (w->repeat)	1368	if (w->repeat)
1149	{
1150	w->at = mn_now + w->repeat;
1151	downheap ((WT *)timers, timercnt, w->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
1152	}
1153	else	1370	else
1154	ev_timer_stop (EV_A_ w);	1371	ev_timer_stop (EV_A_ w);
1155	}	1372	}
1156	else if (w->repeat)	1373	else if (w->repeat)
1157	ev_timer_start (EV_A_ w);	1374	ev_timer_start (EV_A_ w);
1158	}	1375	}
1159		1376
		1377	#if EV_PERIODICS
1160	void	1378	void
1161	ev_periodic_start (EV_P_ struct ev_periodic *w)	1379	ev_periodic_start (EV_P_ struct ev_periodic *w)
1162	{	1380	{
1163	if (ev_is_active (w))	1381	if (ev_is_active (w))
1164	return;	1382	return;
1165		1383
		1384	if (w->reschedule_cb)
		1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1386	else if (w->interval)
		1387	{
1166	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1388	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1167
1168	/* this formula differs from the one in periodic_reify because we do not always round up */	1389	/* this formula differs from the one in periodic_reify because we do not always round up */
1169	if (w->interval)
1170	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1390	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1391	}
1171		1392
1172	ev_start (EV_A_ (W)w, ++periodiccnt);	1393	ev_start (EV_A_ (W)w, ++periodiccnt);
1173	array_needsize (periodics, periodicmax, periodiccnt, );	1394	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1174	periodics [periodiccnt - 1] = w;	1395	periodics [periodiccnt - 1] = w;
1175	upheap ((WT *)periodics, periodiccnt - 1);	1396	upheap ((WT *)periodics, periodiccnt - 1);
		1397
		1398	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1176	}	1399	}
1177		1400
1178	void	1401	void
1179	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1402	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1180	{	1403	{
1181	ev_clear_pending (EV_A_ (W)w);	1404	ev_clear_pending (EV_A_ (W)w);
1182	if (!ev_is_active (w))	1405	if (!ev_is_active (w))
1183	return;	1406	return;
1184		1407
		1408	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1409
1185	if (w->active < periodiccnt--)	1410	if (((W)w)->active < periodiccnt--)
1186	{	1411	{
1187	periodics [w->active - 1] = periodics [periodiccnt];	1412	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1188	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1413	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1189	}	1414	}
1190		1415
1191	ev_stop (EV_A_ (W)w);	1416	ev_stop (EV_A_ (W)w);
1192	}	1417	}
1193		1418
1194	void	1419	void
		1420	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1421	{
		1422	/* TODO: use adjustheap and recalculation */
		1423	ev_periodic_stop (EV_A_ w);
		1424	ev_periodic_start (EV_A_ w);
		1425	}
		1426	#endif
		1427
		1428	void
1195	ev_idle_start (EV_P_ struct ev_idle *w)	1429	ev_idle_start (EV_P_ struct ev_idle *w)
1196	{	1430	{
1197	if (ev_is_active (w))	1431	if (ev_is_active (w))
1198	return;	1432	return;
1199		1433
1200	ev_start (EV_A_ (W)w, ++idlecnt);	1434	ev_start (EV_A_ (W)w, ++idlecnt);
1201	array_needsize (idles, idlemax, idlecnt, );	1435	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1202	idles [idlecnt - 1] = w;	1436	idles [idlecnt - 1] = w;
1203	}	1437	}
1204		1438
1205	void	1439	void
1206	ev_idle_stop (EV_P_ struct ev_idle *w)	1440	ev_idle_stop (EV_P_ struct ev_idle *w)
1207	{	1441	{
1208	ev_clear_pending (EV_A_ (W)w);	1442	ev_clear_pending (EV_A_ (W)w);
1209	if (ev_is_active (w))	1443	if (ev_is_active (w))
1210	return;	1444	return;
1211		1445
1212	idles [w->active - 1] = idles [--idlecnt];	1446	idles [((W)w)->active - 1] = idles [--idlecnt];
1213	ev_stop (EV_A_ (W)w);	1447	ev_stop (EV_A_ (W)w);
1214	}	1448	}
1215		1449
1216	void	1450	void
1217	ev_prepare_start (EV_P_ struct ev_prepare *w)	1451	ev_prepare_start (EV_P_ struct ev_prepare *w)
1218	{	1452	{
1219	if (ev_is_active (w))	1453	if (ev_is_active (w))
1220	return;	1454	return;
1221		1455
1222	ev_start (EV_A_ (W)w, ++preparecnt);	1456	ev_start (EV_A_ (W)w, ++preparecnt);
1223	array_needsize (prepares, preparemax, preparecnt, );	1457	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1224	prepares [preparecnt - 1] = w;	1458	prepares [preparecnt - 1] = w;
1225	}	1459	}
1226		1460
1227	void	1461	void
1228	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1462	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1229	{	1463	{
1230	ev_clear_pending (EV_A_ (W)w);	1464	ev_clear_pending (EV_A_ (W)w);
1231	if (ev_is_active (w))	1465	if (ev_is_active (w))
1232	return;	1466	return;
1233		1467
1234	prepares [w->active - 1] = prepares [--preparecnt];	1468	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1235	ev_stop (EV_A_ (W)w);	1469	ev_stop (EV_A_ (W)w);
1236	}	1470	}
1237		1471
1238	void	1472	void
1239	ev_check_start (EV_P_ struct ev_check *w)	1473	ev_check_start (EV_P_ struct ev_check *w)
1240	{	1474	{
1241	if (ev_is_active (w))	1475	if (ev_is_active (w))
1242	return;	1476	return;
1243		1477
1244	ev_start (EV_A_ (W)w, ++checkcnt);	1478	ev_start (EV_A_ (W)w, ++checkcnt);
1245	array_needsize (checks, checkmax, checkcnt, );	1479	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1246	checks [checkcnt - 1] = w;	1480	checks [checkcnt - 1] = w;
1247	}	1481	}
1248		1482
1249	void	1483	void
1250	ev_check_stop (EV_P_ struct ev_check *w)	1484	ev_check_stop (EV_P_ struct ev_check *w)
1251	{	1485	{
1252	ev_clear_pending (EV_A_ (W)w);	1486	ev_clear_pending (EV_A_ (W)w);
1253	if (ev_is_active (w))	1487	if (!ev_is_active (w))
1254	return;	1488	return;
1255		1489
1256	checks [w->active - 1] = checks [--checkcnt];	1490	checks [((W)w)->active - 1] = checks [--checkcnt];
1257	ev_stop (EV_A_ (W)w);	1491	ev_stop (EV_A_ (W)w);
1258	}	1492	}
1259		1493
1260	#ifndef SA_RESTART	1494	#ifndef SA_RESTART
1261	# define SA_RESTART 0	1495	# define SA_RESTART 0
…		…
1271	return;	1505	return;
1272		1506
1273	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1507	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1274		1508
1275	ev_start (EV_A_ (W)w, 1);	1509	ev_start (EV_A_ (W)w, 1);
1276	array_needsize (signals, signalmax, w->signum, signals_init);	1510	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1277	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1511	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1278		1512
1279	if (!w->next)	1513	if (!((WL)w)->next)
1280	{	1514	{
		1515	#if WIN32
		1516	signal (w->signum, sighandler);
		1517	#else
1281	struct sigaction sa;	1518	struct sigaction sa;
1282	sa.sa_handler = sighandler;	1519	sa.sa_handler = sighandler;
1283	sigfillset (&sa.sa_mask);	1520	sigfillset (&sa.sa_mask);
1284	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1521	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1285	sigaction (w->signum, &sa, 0);	1522	sigaction (w->signum, &sa, 0);
		1523	#endif
1286	}	1524	}
1287	}	1525	}
1288		1526
1289	void	1527	void
1290	ev_signal_stop (EV_P_ struct ev_signal *w)	1528	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1315		1553
1316	void	1554	void
1317	ev_child_stop (EV_P_ struct ev_child *w)	1555	ev_child_stop (EV_P_ struct ev_child *w)
1318	{	1556	{
1319	ev_clear_pending (EV_A_ (W)w);	1557	ev_clear_pending (EV_A_ (W)w);
1320	if (ev_is_active (w))	1558	if (!ev_is_active (w))
1321	return;	1559	return;
1322		1560
1323	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1561	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1324	ev_stop (EV_A_ (W)w);	1562	ev_stop (EV_A_ (W)w);
1325	}	1563	}
…		…
1340	void (cb)(int revents, void arg) = once->cb;	1578	void (cb)(int revents, void arg) = once->cb;
1341	void *arg = once->arg;	1579	void *arg = once->arg;
1342		1580
1343	ev_io_stop (EV_A_ &once->io);	1581	ev_io_stop (EV_A_ &once->io);
1344	ev_timer_stop (EV_A_ &once->to);	1582	ev_timer_stop (EV_A_ &once->to);
1345	free (once);	1583	ev_free (once);
1346		1584
1347	cb (revents, arg);	1585	cb (revents, arg);
1348	}	1586	}
1349		1587
1350	static void	1588	static void
…		…
1360	}	1598	}
1361		1599
1362	void	1600	void
1363	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1601	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1364	{	1602	{
1365	struct ev_once *once = malloc (sizeof (struct ev_once));	1603	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1366		1604
1367	if (!once)	1605	if (!once)
1368	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1606	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1369	else	1607	else
1370	{	1608	{
1371	once->cb = cb;	1609	once->cb = cb;
1372	once->arg = arg;	1610	once->arg = arg;
1373		1611
1374	ev_watcher_init (&once->io, once_cb_io);	1612	ev_init (&once->io, once_cb_io);
1375	if (fd >= 0)	1613	if (fd >= 0)
1376	{	1614	{
1377	ev_io_set (&once->io, fd, events);	1615	ev_io_set (&once->io, fd, events);
1378	ev_io_start (EV_A_ &once->io);	1616	ev_io_start (EV_A_ &once->io);
1379	}	1617	}
1380		1618
1381	ev_watcher_init (&once->to, once_cb_to);	1619	ev_init (&once->to, once_cb_to);
1382	if (timeout >= 0.)	1620	if (timeout >= 0.)
1383	{	1621	{
1384	ev_timer_set (&once->to, timeout, 0.);	1622	ev_timer_set (&once->to, timeout, 0.);
1385	ev_timer_start (EV_A_ &once->to);	1623	ev_timer_start (EV_A_ &once->to);
1386	}	1624	}
1387	}	1625	}
1388	}	1626	}
1389		1627
		1628	#ifdef __cplusplus
		1629	}
		1630	#endif
		1631

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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 1.97 by root, Sun Nov 11 01:53:07 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 1.97 by root, Sun Nov 11 01:53:07 2007 UTC