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

Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.102 by root, Sun Nov 11 17:56:11 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#ifndef EV_EMBED	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
33	#endif	64	#endif
34		65
35	#include <math.h>	66	#include <math.h>
36	#include <stdlib.h>	67	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	68	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	69	#include <stddef.h>
41		70
42	#include <stdio.h>	71	#include <stdio.h>
43		72
44	#include <assert.h>	73	#include <assert.h>
45	#include <errno.h>	74	#include <errno.h>
46	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
47	#ifndef WIN32	80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
48	# include <sys/wait.h>	83	# include <sys/wait.h>
49	#endif	84	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	85	/**/
54		86
55	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
57	#endif	89	#endif
58		90
59	#ifndef EV_USE_SELECT	91	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	92	# define EV_USE_SELECT 1
61	#endif	93	#endif
62		94
63	#ifndef EV_USEV_POLL	95	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	97	#endif
66		98
67	#ifndef EV_USE_EPOLL	99	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
69	#endif	101	#endif
70		102
71	#ifndef EV_USE_KQUEUE	103	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	104	# define EV_USE_KQUEUE 0
		105	#endif
		106
		107	#ifndef EV_USE_WIN32
		108	# ifdef WIN32
		109	# define EV_USE_WIN32 0 /* it does not exist, use select */
		110	# undef EV_USE_SELECT
		111	# define EV_USE_SELECT 1
		112	# else
		113	# define EV_USE_WIN32 0
		114	# endif
73	#endif	115	#endif
74		116
75	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
77	#endif	119	#endif
…		…
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
97		139
98	#ifndef EV_EMBED	140	#ifdef EV_H
		141	# include EV_H
		142	#else
99	# include "ev.h"	143	# include "ev.h"
100	#endif	144	#endif
101		145
102	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
103	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
…		…
117	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
118	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
119		163
120	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121		165
		166	#ifdef WIN32
		167	# include "ev_win32.c"
		168	#endif
		169
122	/*****************************************************************************/	170	/*****************************************************************************/
123		171
		172	static void (syserr_cb)(const char msg);
		173
		174	void ev_set_syserr_cb (void (cb)(const char msg))
		175	{
		176	syserr_cb = cb;
		177	}
		178
		179	static void
		180	syserr (const char *msg)
		181	{
		182	if (!msg)
		183	msg = "(libev) system error";
		184
		185	if (syserr_cb)
		186	syserr_cb (msg);
		187	else
		188	{
		189	perror (msg);
		190	abort ();
		191	}
		192	}
		193
		194	static void (alloc)(void *ptr, long size);
		195
		196	void ev_set_allocator (void (cb)(void *ptr, long size))
		197	{
		198	alloc = cb;
		199	}
		200
		201	static void *
		202	ev_realloc (void *ptr, long size)
		203	{
		204	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		205
		206	if (!ptr && size)
		207	{
		208	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		209	abort ();
		210	}
		211
		212	return ptr;
		213	}
		214
		215	#define ev_malloc(size) ev_realloc (0, (size))
		216	#define ev_free(ptr) ev_realloc ((ptr), 0)
		217
		218	/*****************************************************************************/
		219
124	typedef struct	220	typedef struct
125	{	221	{
126	struct ev_watcher_list *head;	222	WL head;
127	unsigned char events;	223	unsigned char events;
128	unsigned char reify;	224	unsigned char reify;
129	} ANFD;	225	} ANFD;
130		226
131	typedef struct	227	typedef struct
…		…
134	int events;	230	int events;
135	} ANPENDING;	231	} ANPENDING;
136		232
137	#if EV_MULTIPLICITY	233	#if EV_MULTIPLICITY
138		234
139	struct ev_loop	235	struct ev_loop
140	{	236	{
		237	ev_tstamp ev_rt_now;
		238	#define ev_rt_now ((loop)->ev_rt_now)
141	# define VAR(name,decl) decl;	239	#define VAR(name,decl) decl;
142	# include "ev_vars.h"	240	#include "ev_vars.h"
143	};
144	# undef VAR	241	#undef VAR
		242	};
145	# include "ev_wrap.h"	243	#include "ev_wrap.h"
		244
		245	struct ev_loop default_loop_struct;
		246	static struct ev_loop *default_loop;
146		247
147	#else	248	#else
148		249
		250	ev_tstamp ev_rt_now;
149	# define VAR(name,decl) static decl;	251	#define VAR(name,decl) static decl;
150	# include "ev_vars.h"	252	#include "ev_vars.h"
151	# undef VAR	253	#undef VAR
		254
		255	static int default_loop;
152		256
153	#endif	257	#endif
154		258
155	/*****************************************************************************/	259	/*****************************************************************************/
156		260
157	inline ev_tstamp	261	ev_tstamp
158	ev_time (void)	262	ev_time (void)
159	{	263	{
160	#if EV_USE_REALTIME	264	#if EV_USE_REALTIME
161	struct timespec ts;	265	struct timespec ts;
162	clock_gettime (CLOCK_REALTIME, &ts);	266	clock_gettime (CLOCK_REALTIME, &ts);
…		…
181	#endif	285	#endif
182		286
183	return ev_time ();	287	return ev_time ();
184	}	288	}
185		289
		290	#if EV_MULTIPLICITY
186	ev_tstamp	291	ev_tstamp
187	ev_now (EV_P)	292	ev_now (EV_P)
188	{	293	{
189	return rt_now;	294	return ev_rt_now;
190	}	295	}
		296	#endif
191		297
192	#define array_roundsize(base,n) ((n) \| 4 & ~3)	298	#define array_roundsize(type,n) ((n) \| 4 & ~3)
193		299
194	#define array_needsize(base,cur,cnt,init) \	300	#define array_needsize(type,base,cur,cnt,init) \
195	if (expect_false ((cnt) > cur)) \	301	if (expect_false ((cnt) > cur)) \
196	{ \	302	{ \
197	int newcnt = cur; \	303	int newcnt = cur; \
198	do \	304	do \
199	{ \	305	{ \
200	newcnt = array_roundsize (base, newcnt << 1); \	306	newcnt = array_roundsize (type, newcnt << 1); \
201	} \	307	} \
202	while ((cnt) > newcnt); \	308	while ((cnt) > newcnt); \
203	\	309	\
204	base = realloc (base, sizeof (base) (newcnt)); \	310	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
205	init (base + cur, newcnt - cur); \	311	init (base + cur, newcnt - cur); \
206	cur = newcnt; \	312	cur = newcnt; \
207	}	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;
208		330
209	/*****************************************************************************/	331	/*****************************************************************************/
210		332
211	static void	333	static void
212	anfds_init (ANFD *base, int count)	334	anfds_init (ANFD *base, int count)
…		…
219		341
220	++base;	342	++base;
221	}	343	}
222	}	344	}
223		345
224	static void	346	void
225	event (EV_P_ W w, int events)	347	ev_feed_event (EV_P_ void *w, int revents)
226	{	348	{
		349	W w_ = (W)w;
		350
227	if (w->pending)	351	if (w_->pending)
228	{	352	{
229	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
230	return;	354	return;
231	}	355	}
232		356
233	w->pending = ++pendingcnt [ABSPRI (w)];	357	w_->pending = ++pendingcnt [ABSPRI (w_)];
234	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));
235	pendings [ABSPRI (w)][w->pending - 1].w = w;	359	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236	pendings [ABSPRI (w)][w->pending - 1].events = events;	360	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237	}	361	}
238		362
239	static void	363	static void
240	queue_events (EV_P_ W *events, int eventcnt, int type)	364	queue_events (EV_P_ W *events, int eventcnt, int type)
241	{	365	{
242	int i;	366	int i;
243		367
244	for (i = 0; i < eventcnt; ++i)	368	for (i = 0; i < eventcnt; ++i)
245	event (EV_A_ events [i], type);	369	ev_feed_event (EV_A_ events [i], type);
246	}	370	}
247		371
248	static void	372	inline void
249	fd_event (EV_P_ int fd, int events)	373	fd_event (EV_P_ int fd, int revents)
250	{	374	{
251	ANFD *anfd = anfds + fd;	375	ANFD *anfd = anfds + fd;
252	struct ev_io *w;	376	struct ev_io *w;
253		377
254	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)
255	{	379	{
256	int ev = w->events & events;	380	int ev = w->events & revents;
257		381
258	if (ev)	382	if (ev)
259	event (EV_A_ (W)w, ev);	383	ev_feed_event (EV_A_ (W)w, ev);
260	}	384	}
		385	}
		386
		387	void
		388	ev_feed_fd_event (EV_P_ int fd, int revents)
		389	{
		390	fd_event (EV_A_ fd, revents);
261	}	391	}
262		392
263	/*****************************************************************************/	393	/*****************************************************************************/
264		394
265	static void	395	static void
…		…
278	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)
279	events \|= w->events;	409	events \|= w->events;
280		410
281	anfd->reify = 0;	411	anfd->reify = 0;
282		412
283	if (anfd->events != events)
284	{
285	method_modify (EV_A_ fd, anfd->events, events);	413	method_modify (EV_A_ fd, anfd->events, events);
286	anfd->events = events;	414	anfd->events = events;
287	}
288	}	415	}
289		416
290	fdchangecnt = 0;	417	fdchangecnt = 0;
291	}	418	}
292		419
293	static void	420	static void
294	fd_change (EV_P_ int fd)	421	fd_change (EV_P_ int fd)
295	{	422	{
296	if (anfds [fd].reify \|\| fdchangecnt < 0)	423	if (anfds [fd].reify)
297	return;	424	return;
298		425
299	anfds [fd].reify = 1;	426	anfds [fd].reify = 1;
300		427
301	++fdchangecnt;	428	++fdchangecnt;
302	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	429	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
303	fdchanges [fdchangecnt - 1] = fd;	430	fdchanges [fdchangecnt - 1] = fd;
304	}	431	}
305		432
306	static void	433	static void
307	fd_kill (EV_P_ int fd)	434	fd_kill (EV_P_ int fd)
…		…
309	struct ev_io *w;	436	struct ev_io *w;
310		437
311	while ((w = (struct ev_io *)anfds [fd].head))	438	while ((w = (struct ev_io *)anfds [fd].head))
312	{	439	{
313	ev_io_stop (EV_A_ w);	440	ev_io_stop (EV_A_ w);
314	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);
315	}	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
316	}	453	}
317		454
318	/* called on EBADF to verify fds */	455	/* called on EBADF to verify fds */
319	static void	456	static void
320	fd_ebadf (EV_P)	457	fd_ebadf (EV_P)
321	{	458	{
322	int fd;	459	int fd;
323		460
324	for (fd = 0; fd < anfdmax; ++fd)	461	for (fd = 0; fd < anfdmax; ++fd)
325	if (anfds [fd].events)	462	if (anfds [fd].events)
326	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	463	if (!fd_valid (fd) == -1 && errno == EBADF)
327	fd_kill (EV_A_ fd);	464	fd_kill (EV_A_ fd);
328	}	465	}
329		466
330	/* 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 */
331	static void	468	static void
332	fd_enomem (EV_P)	469	fd_enomem (EV_P)
333	{	470	{
334	int fd = anfdmax;	471	int fd;
335		472
336	while (fd--)	473	for (fd = anfdmax; fd--; )
337	if (anfds [fd].events)	474	if (anfds [fd].events)
338	{	475	{
339	close (fd);
340	fd_kill (EV_A_ fd);	476	fd_kill (EV_A_ fd);
341	return;	477	return;
342	}	478	}
343	}	479	}
344		480
345	/* 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 */
346	static void	482	static void
347	fd_rearm_all (EV_P)	483	fd_rearm_all (EV_P)
348	{	484	{
349	int fd;	485	int fd;
350		486
351	/* this should be highly optimised to not do anything but set a flag */	487	/* this should be highly optimised to not do anything but set a flag */
352	for (fd = 0; fd < anfdmax; ++fd)	488	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	489	if (anfds [fd].events)
354	{	490	{
355	anfds [fd].events = 0;	491	anfds [fd].events = 0;
356	fd_change (fd);	492	fd_change (EV_A_ fd);
357	}	493	}
358	}	494	}
359		495
360	/*****************************************************************************/	496	/*****************************************************************************/
361		497
…		…
365	WT w = heap [k];	501	WT w = heap [k];
366		502
367	while (k && heap [k >> 1]->at > w->at)	503	while (k && heap [k >> 1]->at > w->at)
368	{	504	{
369	heap [k] = heap [k >> 1];	505	heap [k] = heap [k >> 1];
370	heap [k]->active = k + 1;	506	((W)heap [k])->active = k + 1;
371	k >>= 1;	507	k >>= 1;
372	}	508	}
373		509
374	heap [k] = w;	510	heap [k] = w;
375	heap [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
376		512
377	}	513	}
378		514
379	static void	515	static void
380	downheap (WT *heap, int N, int k)	516	downheap (WT *heap, int N, int k)
…		…
390		526
391	if (w->at <= heap [j]->at)	527	if (w->at <= heap [j]->at)
392	break;	528	break;
393		529
394	heap [k] = heap [j];	530	heap [k] = heap [j];
395	heap [k]->active = k + 1;	531	((W)heap [k])->active = k + 1;
396	k = j;	532	k = j;
397	}	533	}
398		534
399	heap [k] = w;	535	heap [k] = w;
400	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);
401	}	544	}
402		545
403	/*****************************************************************************/	546	/*****************************************************************************/
404		547
405	typedef struct	548	typedef struct
406	{	549	{
407	struct ev_watcher_list *head;	550	WL head;
408	sig_atomic_t volatile gotsig;	551	sig_atomic_t volatile gotsig;
409	} ANSIG;	552	} ANSIG;
410		553
411	static ANSIG *signals;	554	static ANSIG *signals;
412	static int signalmax;	555	static int signalmax;
413		556
414	static int sigpipe [2];	557	static int sigpipe [2];
415	static sig_atomic_t volatile gotsig;	558	static sig_atomic_t volatile gotsig;
		559	static struct ev_io sigev;
416		560
417	static void	561	static void
418	signals_init (ANSIG *base, int count)	562	signals_init (ANSIG *base, int count)
419	{	563	{
420	while (count--)	564	while (count--)
…		…
427	}	571	}
428		572
429	static void	573	static void
430	sighandler (int signum)	574	sighandler (int signum)
431	{	575	{
		576	#if WIN32
		577	signal (signum, sighandler);
		578	#endif
		579
432	signals [signum - 1].gotsig = 1;	580	signals [signum - 1].gotsig = 1;
433		581
434	if (!gotsig)	582	if (!gotsig)
435	{	583	{
436	int old_errno = errno;	584	int old_errno = errno;
437	gotsig = 1;	585	gotsig = 1;
		586	#ifdef WIN32
		587	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		588	#else
438	write (sigpipe [1], &signum, 1);	589	write (sigpipe [1], &signum, 1);
		590	#endif
439	errno = old_errno;	591	errno = old_errno;
440	}	592	}
441	}	593	}
442		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
443	static void	615	static void
444	sigcb (EV_P_ struct ev_io *iow, int revents)	616	sigcb (EV_P_ struct ev_io *iow, int revents)
445	{	617	{
446	struct ev_watcher_list *w;
447	int signum;	618	int signum;
448		619
		620	#ifdef WIN32
		621	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		622	#else
449	read (sigpipe [0], &revents, 1);	623	read (sigpipe [0], &revents, 1);
		624	#endif
450	gotsig = 0;	625	gotsig = 0;
451		626
452	for (signum = signalmax; signum--; )	627	for (signum = signalmax; signum--; )
453	if (signals [signum].gotsig)	628	if (signals [signum].gotsig)
454	{	629	ev_feed_signal_event (EV_A_ signum + 1);
455	signals [signum].gotsig = 0;
456
457	for (w = signals [signum].head; w; w = w->next)
458	event (EV_A_ (W)w, EV_SIGNAL);
459	}
460	}	630	}
461		631
462	static void	632	static void
463	siginit (EV_P)	633	siginit (EV_P)
464	{	634	{
…		…
476	ev_unref (EV_A); /* child watcher should not keep loop alive */	646	ev_unref (EV_A); /* child watcher should not keep loop alive */
477	}	647	}
478		648
479	/*****************************************************************************/	649	/*****************************************************************************/
480		650
		651	static struct ev_child *childs [PID_HASHSIZE];
		652
481	#ifndef WIN32	653	#ifndef WIN32
		654
		655	static struct ev_signal childev;
482		656
483	#ifndef WCONTINUED	657	#ifndef WCONTINUED
484	# define WCONTINUED 0	658	# define WCONTINUED 0
485	#endif	659	#endif
486		660
…		…
490	struct ev_child *w;	664	struct ev_child *w;
491		665
492	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)
493	if (w->pid == pid \|\| !w->pid)	667	if (w->pid == pid \|\| !w->pid)
494	{	668	{
495	w->priority = sw->priority; /* need to do it now */	669	ev_priority (w) = ev_priority (sw); /* need to do it now */
496	w->rpid = pid;	670	w->rpid = pid;
497	w->rstatus = status;	671	w->rstatus = status;
498	event (EV_A_ (W)w, EV_CHILD);	672	ev_feed_event (EV_A_ (W)w, EV_CHILD);
499	}	673	}
500	}	674	}
501		675
502	static void	676	static void
503	childcb (EV_P_ struct ev_signal *sw, int revents)	677	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
505	int pid, status;	679	int pid, status;
506		680
507	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	681	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
508	{	682	{
509	/* 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 */
510	event (EV_A_ (W)sw, EV_SIGNAL);	684	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511		685
512	child_reap (EV_A_ sw, pid, pid, status);	686	child_reap (EV_A_ sw, pid, pid, status);
513	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	687	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514	}	688	}
515	}	689	}
…		…
522	# include "ev_kqueue.c"	696	# include "ev_kqueue.c"
523	#endif	697	#endif
524	#if EV_USE_EPOLL	698	#if EV_USE_EPOLL
525	# include "ev_epoll.c"	699	# include "ev_epoll.c"
526	#endif	700	#endif
527	#if EV_USEV_POLL	701	#if EV_USE_POLL
528	# include "ev_poll.c"	702	# include "ev_poll.c"
529	#endif	703	#endif
530	#if EV_USE_SELECT	704	#if EV_USE_SELECT
531	# include "ev_select.c"	705	# include "ev_select.c"
532	#endif	706	#endif
…		…
572	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	746	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573	have_monotonic = 1;	747	have_monotonic = 1;
574	}	748	}
575	#endif	749	#endif
576		750
577	rt_now = ev_time ();	751	ev_rt_now = ev_time ();
578	mn_now = get_clock ();	752	mn_now = get_clock ();
579	now_floor = mn_now;	753	now_floor = mn_now;
580	rtmn_diff = rt_now - mn_now;	754	rtmn_diff = ev_rt_now - mn_now;
581		755
582	if (methods == EVMETHOD_AUTO)	756	if (methods == EVMETHOD_AUTO)
583	if (!enable_secure () && getenv ("LIBEV_METHODS"))	757	if (!enable_secure () && getenv ("LIBEV_METHODS"))
584	methods = atoi (getenv ("LIBEV_METHODS"));	758	methods = atoi (getenv ("LIBEV_METHODS"));
585	else	759	else
586	methods = EVMETHOD_ANY;	760	methods = EVMETHOD_ANY;
587		761
588	method = 0;	762	method = 0;
		763	#if EV_USE_WIN32
		764	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		765	#endif
589	#if EV_USE_KQUEUE	766	#if EV_USE_KQUEUE
590	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	767	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
591	#endif	768	#endif
592	#if EV_USE_EPOLL	769	#if EV_USE_EPOLL
593	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	770	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
594	#endif	771	#endif
595	#if EV_USEV_POLL	772	#if EV_USE_POLL
596	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	773	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
597	#endif	774	#endif
598	#if EV_USE_SELECT	775	#if EV_USE_SELECT
599	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	776	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
600	#endif	777	#endif
		778
		779	ev_init (&sigev, sigcb);
		780	ev_set_priority (&sigev, EV_MAXPRI);
601	}	781	}
602	}	782	}
603		783
604	void	784	void
605	loop_destroy (EV_P)	785	loop_destroy (EV_P)
606	{	786	{
		787	int i;
		788
		789	#if EV_USE_WIN32
		790	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		791	#endif
607	#if EV_USE_KQUEUE	792	#if EV_USE_KQUEUE
608	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	793	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609	#endif	794	#endif
610	#if EV_USE_EPOLL	795	#if EV_USE_EPOLL
611	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	796	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612	#endif	797	#endif
613	#if EV_USEV_POLL	798	#if EV_USE_POLL
614	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	799	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615	#endif	800	#endif
616	#if EV_USE_SELECT	801	#if EV_USE_SELECT
617	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	802	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618	#endif	803	#endif
619		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
620	method = 0;	818	method = 0;
621	/TODO/
622	}	819	}
623		820
624	void	821	static void
625	loop_fork (EV_P)	822	loop_fork (EV_P)
626	{	823	{
627	/TODO/
628	#if EV_USE_EPOLL	824	#if EV_USE_EPOLL
629	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	825	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630	#endif	826	#endif
631	#if EV_USE_KQUEUE	827	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	828	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
633	#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;
634	}	847	}
635		848
636	#if EV_MULTIPLICITY	849	#if EV_MULTIPLICITY
637	struct ev_loop *	850	struct ev_loop *
638	ev_loop_new (int methods)	851	ev_loop_new (int methods)
639	{	852	{
640	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));
641		856
642	loop_init (EV_A_ methods);	857	loop_init (EV_A_ methods);
643		858
644	if (ev_methods (EV_A))	859	if (ev_method (EV_A))
645	return loop;	860	return loop;
646		861
647	return 0;	862	return 0;
648	}	863	}
649		864
650	void	865	void
651	ev_loop_destroy (EV_P)	866	ev_loop_destroy (EV_P)
652	{	867	{
653	loop_destroy (EV_A);	868	loop_destroy (EV_A);
654	free (loop);	869	ev_free (loop);
655	}	870	}
656		871
657	void	872	void
658	ev_loop_fork (EV_P)	873	ev_loop_fork (EV_P)
659	{	874	{
660	loop_fork (EV_A);	875	postfork = 1;
661	}	876	}
662		877
663	#endif	878	#endif
664		879
665	#if EV_MULTIPLICITY	880	#if EV_MULTIPLICITY
666	struct ev_loop default_loop_struct;
667	static struct ev_loop *default_loop;
668
669	struct ev_loop *	881	struct ev_loop *
670	#else	882	#else
671	static int default_loop;
672
673	int	883	int
674	#endif	884	#endif
675	ev_default_loop (int methods)	885	ev_default_loop (int methods)
676	{	886	{
677	if (sigpipe [0] == sigpipe [1])	887	if (sigpipe [0] == sigpipe [1])
…		…
688		898
689	loop_init (EV_A_ methods);	899	loop_init (EV_A_ methods);
690		900
691	if (ev_method (EV_A))	901	if (ev_method (EV_A))
692	{	902	{
693	ev_watcher_init (&sigev, sigcb);
694	ev_set_priority (&sigev, EV_MAXPRI);
695	siginit (EV_A);	903	siginit (EV_A);
696		904
697	#ifndef WIN32	905	#ifndef WIN32
698	ev_signal_init (&childev, childcb, SIGCHLD);	906	ev_signal_init (&childev, childcb, SIGCHLD);
699	ev_set_priority (&childev, EV_MAXPRI);	907	ev_set_priority (&childev, EV_MAXPRI);
…		…
713	{	921	{
714	#if EV_MULTIPLICITY	922	#if EV_MULTIPLICITY
715	struct ev_loop *loop = default_loop;	923	struct ev_loop *loop = default_loop;
716	#endif	924	#endif
717		925
		926	#ifndef WIN32
718	ev_ref (EV_A); /* child watcher */	927	ev_ref (EV_A); /* child watcher */
719	ev_signal_stop (EV_A_ &childev);	928	ev_signal_stop (EV_A_ &childev);
		929	#endif
720		930
721	ev_ref (EV_A); /* signal watcher */	931	ev_ref (EV_A); /* signal watcher */
722	ev_io_stop (EV_A_ &sigev);	932	ev_io_stop (EV_A_ &sigev);
723		933
724	close (sigpipe [0]); sigpipe [0] = 0;	934	close (sigpipe [0]); sigpipe [0] = 0;
…		…
726		936
727	loop_destroy (EV_A);	937	loop_destroy (EV_A);
728	}	938	}
729		939
730	void	940	void
731	ev_default_fork (EV_P)	941	ev_default_fork (void)
732	{	942	{
733	loop_fork (EV_A);	943	#if EV_MULTIPLICITY
		944	struct ev_loop *loop = default_loop;
		945	#endif
734		946
735	ev_io_stop (EV_A_ &sigev);	947	if (method)
736	close (sigpipe [0]);	948	postfork = 1;
737	close (sigpipe [1]);
738	pipe (sigpipe);
739
740	ev_ref (EV_A); /* signal watcher */
741	siginit (EV_A);
742	}	949	}
743		950
744	/*****************************************************************************/	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	}
745		964
746	static void	965	static void
747	call_pending (EV_P)	966	call_pending (EV_P)
748	{	967	{
749	int pri;	968	int pri;
…		…
754	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	973	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755		974
756	if (p->w)	975	if (p->w)
757	{	976	{
758	p->w->pending = 0;	977	p->w->pending = 0;
759	p->w->cb (EV_A_ p->w, p->events);	978	EV_CB_INVOKE (p->w, p->events);
760	}	979	}
761	}	980	}
762	}	981	}
763		982
764	static void	983	static void
765	timers_reify (EV_P)	984	timers_reify (EV_P)
766	{	985	{
767	while (timercnt && timers [0]->at <= mn_now)	986	while (timercnt && ((WT)timers [0])->at <= mn_now)
768	{	987	{
769	struct ev_timer *w = timers [0];	988	struct ev_timer *w = timers [0];
		989
		990	assert (("inactive timer on timer heap detected", ev_is_active (w)));
770		991
771	/* first reschedule or stop timer */	992	/* first reschedule or stop timer */
772	if (w->repeat)	993	if (w->repeat)
773	{	994	{
774	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
775	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
776	downheap ((WT *)timers, timercnt, 0);	1001	downheap ((WT *)timers, timercnt, 0);
777	}	1002	}
778	else	1003	else
779	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1004	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780		1005
781	event (EV_A_ (W)w, EV_TIMEOUT);	1006	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782	}	1007	}
783	}	1008	}
784		1009
		1010	#if EV_PERIODICS
785	static void	1011	static void
786	periodics_reify (EV_P)	1012	periodics_reify (EV_P)
787	{	1013	{
788	while (periodiccnt && periodics [0]->at <= rt_now)	1014	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789	{	1015	{
790	struct ev_periodic *w = periodics [0];	1016	struct ev_periodic *w = periodics [0];
791		1017
		1018	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1019
792	/* first reschedule or stop timer */	1020	/* first reschedule or stop timer */
793	if (w->interval)	1021	if (w->reschedule_cb)
794	{	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	{
795	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;
796	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));
797	downheap ((WT *)periodics, periodiccnt, 0);	1032	downheap ((WT *)periodics, periodiccnt, 0);
798	}	1033	}
799	else	1034	else
800	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1035	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801		1036
802	event (EV_A_ (W)w, EV_PERIODIC);	1037	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803	}	1038	}
804	}	1039	}
805		1040
806	static void	1041	static void
807	periodics_reschedule (EV_P)	1042	periodics_reschedule (EV_P)
…		…
811	/* adjust periodics after time jump */	1046	/* adjust periodics after time jump */
812	for (i = 0; i < periodiccnt; ++i)	1047	for (i = 0; i < periodiccnt; ++i)
813	{	1048	{
814	struct ev_periodic *w = periodics [i];	1049	struct ev_periodic *w = periodics [i];
815		1050
		1051	if (w->reschedule_cb)
		1052	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816	if (w->interval)	1053	else if (w->interval)
817	{
818	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;
819
820	if (fabs (diff) >= 1e-4)
821	{
822	ev_periodic_stop (EV_A_ w);
823	ev_periodic_start (EV_A_ w);
824
825	i = 0; /* restart loop, inefficient, but time jumps should be rare */
826	}
827	}
828	}	1055	}
		1056
		1057	/* now rebuild the heap */
		1058	for (i = periodiccnt >> 1; i--; )
		1059	downheap ((WT *)periodics, periodiccnt, i);
829	}	1060	}
		1061	#endif
830		1062
831	inline int	1063	inline int
832	time_update_monotonic (EV_P)	1064	time_update_monotonic (EV_P)
833	{	1065	{
834	mn_now = get_clock ();	1066	mn_now = get_clock ();
835		1067
836	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1068	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837	{	1069	{
838	rt_now = rtmn_diff + mn_now;	1070	ev_rt_now = rtmn_diff + mn_now;
839	return 0;	1071	return 0;
840	}	1072	}
841	else	1073	else
842	{	1074	{
843	now_floor = mn_now;	1075	now_floor = mn_now;
844	rt_now = ev_time ();	1076	ev_rt_now = ev_time ();
845	return 1;	1077	return 1;
846	}	1078	}
847	}	1079	}
848		1080
849	static void	1081	static void
…		…
858	{	1090	{
859	ev_tstamp odiff = rtmn_diff;	1091	ev_tstamp odiff = rtmn_diff;
860		1092
861	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 */
862	{	1094	{
863	rtmn_diff = rt_now - mn_now;	1095	rtmn_diff = ev_rt_now - mn_now;
864		1096
865	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1097	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866	return; /* all is well */	1098	return; /* all is well */
867		1099
868	rt_now = ev_time ();	1100	ev_rt_now = ev_time ();
869	mn_now = get_clock ();	1101	mn_now = get_clock ();
870	now_floor = mn_now;	1102	now_floor = mn_now;
871	}	1103	}
872		1104
		1105	# if EV_PERIODICS
873	periodics_reschedule (EV_A);	1106	periodics_reschedule (EV_A);
		1107	# endif
874	/* no timer adjustment, as the monotonic clock doesn't jump */	1108	/* no timer adjustment, as the monotonic clock doesn't jump */
875	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1109	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876	}	1110	}
877	}	1111	}
878	else	1112	else
879	#endif	1113	#endif
880	{	1114	{
881	rt_now = ev_time ();	1115	ev_rt_now = ev_time ();
882		1116
883	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))
884	{	1118	{
		1119	#if EV_PERIODICS
885	periodics_reschedule (EV_A);	1120	periodics_reschedule (EV_A);
		1121	#endif
886		1122
887	/* 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 */
888	for (i = 0; i < timercnt; ++i)	1124	for (i = 0; i < timercnt; ++i)
889	timers [i]->at += rt_now - mn_now;	1125	((WT)timers [i])->at += ev_rt_now - mn_now;
890	}	1126	}
891		1127
892	mn_now = rt_now;	1128	mn_now = ev_rt_now;
893	}	1129	}
894	}	1130	}
895		1131
896	void	1132	void
897	ev_ref (EV_P)	1133	ev_ref (EV_P)
…		…
920	{	1156	{
921	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1157	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922	call_pending (EV_A);	1158	call_pending (EV_A);
923	}	1159	}
924		1160
		1161	/* we might have forked, so reify kernel state if necessary */
		1162	if (expect_false (postfork))
		1163	loop_fork (EV_A);
		1164
925	/* update fd-related kernel structures */	1165	/* update fd-related kernel structures */
926	fd_reify (EV_A);	1166	fd_reify (EV_A);
927		1167
928	/* calculate blocking time */	1168	/* calculate blocking time */
929		1169
930	/* 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
931	always have timers, we just calculate it always */	1171	always have timers, we just calculate it always */
932	#if EV_USE_MONOTONIC	1172	#if EV_USE_MONOTONIC
933	if (expect_true (have_monotonic))	1173	if (expect_true (have_monotonic))
934	time_update_monotonic (EV_A);	1174	time_update_monotonic (EV_A);
935	else	1175	else
936	#endif	1176	#endif
937	{	1177	{
938	rt_now = ev_time ();	1178	ev_rt_now = ev_time ();
939	mn_now = rt_now;	1179	mn_now = ev_rt_now;
940	}	1180	}
941		1181
942	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1182	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
943	block = 0.;	1183	block = 0.;
944	else	1184	else
945	{	1185	{
946	block = MAX_BLOCKTIME;	1186	block = MAX_BLOCKTIME;
947		1187
948	if (timercnt)	1188	if (timercnt)
949	{	1189	{
950	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1190	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951	if (block > to) block = to;	1191	if (block > to) block = to;
952	}	1192	}
953		1193
		1194	#if EV_PERIODICS
954	if (periodiccnt)	1195	if (periodiccnt)
955	{	1196	{
956	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1197	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957	if (block > to) block = to;	1198	if (block > to) block = to;
958	}	1199	}
		1200	#endif
959		1201
960	if (block < 0.) block = 0.;	1202	if (block < 0.) block = 0.;
961	}	1203	}
962		1204
963	method_poll (EV_A_ block);	1205	method_poll (EV_A_ block);
964		1206
965	/* update rt_now, do magic */	1207	/* update ev_rt_now, do magic */
966	time_update (EV_A);	1208	time_update (EV_A);
967		1209
968	/* queue pending timers and reschedule them */	1210	/* queue pending timers and reschedule them */
969	timers_reify (EV_A); /* relative timers called last */	1211	timers_reify (EV_A); /* relative timers called last */
		1212	#if EV_PERIODICS
970	periodics_reify (EV_A); /* absolute timers called first */	1213	periodics_reify (EV_A); /* absolute timers called first */
		1214	#endif
971		1215
972	/* queue idle watchers unless io or timers are pending */	1216	/* queue idle watchers unless io or timers are pending */
973	if (!pendingcnt)	1217	if (idlecnt && !any_pending (EV_A))
974	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1218	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975		1219
976	/* queue check watchers, to be executed first */	1220	/* queue check watchers, to be executed first */
977	if (checkcnt)	1221	if (checkcnt)
978	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1222	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1053	return;	1297	return;
1054		1298
1055	assert (("ev_io_start called with negative fd", fd >= 0));	1299	assert (("ev_io_start called with negative fd", fd >= 0));
1056		1300
1057	ev_start (EV_A_ (W)w, 1);	1301	ev_start (EV_A_ (W)w, 1);
1058	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1302	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1303	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060		1304
1061	fd_change (EV_A_ fd);	1305	fd_change (EV_A_ fd);
1062	}	1306	}
1063		1307
…		…
1066	{	1310	{
1067	ev_clear_pending (EV_A_ (W)w);	1311	ev_clear_pending (EV_A_ (W)w);
1068	if (!ev_is_active (w))	1312	if (!ev_is_active (w))
1069	return;	1313	return;
1070		1314
		1315	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1316
1071	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1317	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072	ev_stop (EV_A_ (W)w);	1318	ev_stop (EV_A_ (W)w);
1073		1319
1074	fd_change (EV_A_ w->fd);	1320	fd_change (EV_A_ w->fd);
1075	}	1321	}
…		…
1078	ev_timer_start (EV_P_ struct ev_timer *w)	1324	ev_timer_start (EV_P_ struct ev_timer *w)
1079	{	1325	{
1080	if (ev_is_active (w))	1326	if (ev_is_active (w))
1081	return;	1327	return;
1082		1328
1083	w->at += mn_now;	1329	((WT)w)->at += mn_now;
1084		1330
1085	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.));
1086		1332
1087	ev_start (EV_A_ (W)w, ++timercnt);	1333	ev_start (EV_A_ (W)w, ++timercnt);
1088	array_needsize (timers, timermax, timercnt, );	1334	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1089	timers [timercnt - 1] = w;	1335	timers [timercnt - 1] = w;
1090	upheap ((WT *)timers, timercnt - 1);	1336	upheap ((WT *)timers, timercnt - 1);
		1337
		1338	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091	}	1339	}
1092		1340
1093	void	1341	void
1094	ev_timer_stop (EV_P_ struct ev_timer *w)	1342	ev_timer_stop (EV_P_ struct ev_timer *w)
1095	{	1343	{
1096	ev_clear_pending (EV_A_ (W)w);	1344	ev_clear_pending (EV_A_ (W)w);
1097	if (!ev_is_active (w))	1345	if (!ev_is_active (w))
1098	return;	1346	return;
1099		1347
		1348	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1349
1100	if (w->active < timercnt--)	1350	if (((W)w)->active < timercnt--)
1101	{	1351	{
1102	timers [w->active - 1] = timers [timercnt];	1352	timers [((W)w)->active - 1] = timers [timercnt];
1103	downheap ((WT *)timers, timercnt, w->active - 1);	1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104	}	1354	}
1105		1355
1106	w->at = w->repeat;	1356	((WT)w)->at -= mn_now;
1107		1357
1108	ev_stop (EV_A_ (W)w);	1358	ev_stop (EV_A_ (W)w);
1109	}	1359	}
1110		1360
1111	void	1361	void
…		…
1113	{	1363	{
1114	if (ev_is_active (w))	1364	if (ev_is_active (w))
1115	{	1365	{
1116	if (w->repeat)	1366	if (w->repeat)
1117	{	1367	{
1118	w->at = mn_now + w->repeat;	1368	((WT)w)->at = mn_now + w->repeat;
1119	downheap ((WT *)timers, timercnt, w->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1120	}	1370	}
1121	else	1371	else
1122	ev_timer_stop (EV_A_ w);	1372	ev_timer_stop (EV_A_ w);
1123	}	1373	}
1124	else if (w->repeat)	1374	else if (w->repeat)
1125	ev_timer_start (EV_A_ w);	1375	ev_timer_start (EV_A_ w);
1126	}	1376	}
1127		1377
		1378	#if EV_PERIODICS
1128	void	1379	void
1129	ev_periodic_start (EV_P_ struct ev_periodic *w)	1380	ev_periodic_start (EV_P_ struct ev_periodic *w)
1130	{	1381	{
1131	if (ev_is_active (w))	1382	if (ev_is_active (w))
1132	return;	1383	return;
1133		1384
		1385	if (w->reschedule_cb)
		1386	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1387	else if (w->interval)
		1388	{
1134	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.));
1135
1136	/* 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 */
1137	if (w->interval)
1138	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	}
1139		1393
1140	ev_start (EV_A_ (W)w, ++periodiccnt);	1394	ev_start (EV_A_ (W)w, ++periodiccnt);
1141	array_needsize (periodics, periodicmax, periodiccnt, );	1395	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1142	periodics [periodiccnt - 1] = w;	1396	periodics [periodiccnt - 1] = w;
1143	upheap ((WT *)periodics, periodiccnt - 1);	1397	upheap ((WT *)periodics, periodiccnt - 1);
		1398
		1399	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144	}	1400	}
1145		1401
1146	void	1402	void
1147	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1403	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148	{	1404	{
1149	ev_clear_pending (EV_A_ (W)w);	1405	ev_clear_pending (EV_A_ (W)w);
1150	if (!ev_is_active (w))	1406	if (!ev_is_active (w))
1151	return;	1407	return;
1152		1408
		1409	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1410
1153	if (w->active < periodiccnt--)	1411	if (((W)w)->active < periodiccnt--)
1154	{	1412	{
1155	periodics [w->active - 1] = periodics [periodiccnt];	1413	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1414	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157	}	1415	}
1158		1416
1159	ev_stop (EV_A_ (W)w);	1417	ev_stop (EV_A_ (W)w);
1160	}	1418	}
1161		1419
1162	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
1163	ev_idle_start (EV_P_ struct ev_idle *w)	1430	ev_idle_start (EV_P_ struct ev_idle *w)
1164	{	1431	{
1165	if (ev_is_active (w))	1432	if (ev_is_active (w))
1166	return;	1433	return;
1167		1434
1168	ev_start (EV_A_ (W)w, ++idlecnt);	1435	ev_start (EV_A_ (W)w, ++idlecnt);
1169	array_needsize (idles, idlemax, idlecnt, );	1436	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1170	idles [idlecnt - 1] = w;	1437	idles [idlecnt - 1] = w;
1171	}	1438	}
1172		1439
1173	void	1440	void
1174	ev_idle_stop (EV_P_ struct ev_idle *w)	1441	ev_idle_stop (EV_P_ struct ev_idle *w)
1175	{	1442	{
1176	ev_clear_pending (EV_A_ (W)w);	1443	ev_clear_pending (EV_A_ (W)w);
		1444	if (!ev_is_active (w))
		1445	return;
		1446
		1447	idles [((W)w)->active - 1] = idles [--idlecnt];
		1448	ev_stop (EV_A_ (W)w);
		1449	}
		1450
		1451	void
		1452	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1453	{
1177	if (ev_is_active (w))	1454	if (ev_is_active (w))
1178	return;	1455	return;
1179		1456
1180	idles [w->active - 1] = idles [--idlecnt];	1457	ev_start (EV_A_ (W)w, ++preparecnt);
		1458	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1459	prepares [preparecnt - 1] = w;
		1460	}
		1461
		1462	void
		1463	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1464	{
		1465	ev_clear_pending (EV_A_ (W)w);
		1466	if (!ev_is_active (w))
		1467	return;
		1468
		1469	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1181	ev_stop (EV_A_ (W)w);	1470	ev_stop (EV_A_ (W)w);
1182	}	1471	}
1183		1472
1184	void	1473	void
1185	ev_prepare_start (EV_P_ struct ev_prepare *w)	1474	ev_check_start (EV_P_ struct ev_check *w)
1186	{	1475	{
1187	if (ev_is_active (w))	1476	if (ev_is_active (w))
1188	return;	1477	return;
1189		1478
1190	ev_start (EV_A_ (W)w, ++preparecnt);	1479	ev_start (EV_A_ (W)w, ++checkcnt);
1191	array_needsize (prepares, preparemax, preparecnt, );	1480	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1192	prepares [preparecnt - 1] = w;	1481	checks [checkcnt - 1] = w;
1193	}	1482	}
1194		1483
1195	void	1484	void
1196	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1485	ev_check_stop (EV_P_ struct ev_check *w)
1197	{	1486	{
1198	ev_clear_pending (EV_A_ (W)w);	1487	ev_clear_pending (EV_A_ (W)w);
1199	if (ev_is_active (w))	1488	if (!ev_is_active (w))
1200	return;	1489	return;
1201		1490
1202	prepares [w->active - 1] = prepares [--preparecnt];
1203	ev_stop (EV_A_ (W)w);
1204	}
1205
1206	void
1207	ev_check_start (EV_P_ struct ev_check *w)
1208	{
1209	if (ev_is_active (w))
1210	return;
1211
1212	ev_start (EV_A_ (W)w, ++checkcnt);
1213	array_needsize (checks, checkmax, checkcnt, );
1214	checks [checkcnt - 1] = w;
1215	}
1216
1217	void
1218	ev_check_stop (EV_P_ struct ev_check *w)
1219	{
1220	ev_clear_pending (EV_A_ (W)w);
1221	if (ev_is_active (w))
1222	return;
1223
1224	checks [w->active - 1] = checks [--checkcnt];	1491	checks [((W)w)->active - 1] = checks [--checkcnt];
1225	ev_stop (EV_A_ (W)w);	1492	ev_stop (EV_A_ (W)w);
1226	}	1493	}
1227		1494
1228	#ifndef SA_RESTART	1495	#ifndef SA_RESTART
1229	# define SA_RESTART 0	1496	# define SA_RESTART 0
…		…
1239	return;	1506	return;
1240		1507
1241	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));
1242		1509
1243	ev_start (EV_A_ (W)w, 1);	1510	ev_start (EV_A_ (W)w, 1);
1244	array_needsize (signals, signalmax, w->signum, signals_init);	1511	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1512	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246		1513
1247	if (!w->next)	1514	if (!((WL)w)->next)
1248	{	1515	{
		1516	#if WIN32
		1517	signal (w->signum, sighandler);
		1518	#else
1249	struct sigaction sa;	1519	struct sigaction sa;
1250	sa.sa_handler = sighandler;	1520	sa.sa_handler = sighandler;
1251	sigfillset (&sa.sa_mask);	1521	sigfillset (&sa.sa_mask);
1252	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 */
1253	sigaction (w->signum, &sa, 0);	1523	sigaction (w->signum, &sa, 0);
		1524	#endif
1254	}	1525	}
1255	}	1526	}
1256		1527
1257	void	1528	void
1258	ev_signal_stop (EV_P_ struct ev_signal *w)	1529	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1283		1554
1284	void	1555	void
1285	ev_child_stop (EV_P_ struct ev_child *w)	1556	ev_child_stop (EV_P_ struct ev_child *w)
1286	{	1557	{
1287	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1559	if (!ev_is_active (w))
1289	return;	1560	return;
1290		1561
1291	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1562	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1293	}	1564	}
…		…
1308	void (cb)(int revents, void arg) = once->cb;	1579	void (cb)(int revents, void arg) = once->cb;
1309	void *arg = once->arg;	1580	void *arg = once->arg;
1310		1581
1311	ev_io_stop (EV_A_ &once->io);	1582	ev_io_stop (EV_A_ &once->io);
1312	ev_timer_stop (EV_A_ &once->to);	1583	ev_timer_stop (EV_A_ &once->to);
1313	free (once);	1584	ev_free (once);
1314		1585
1315	cb (revents, arg);	1586	cb (revents, arg);
1316	}	1587	}
1317		1588
1318	static void	1589	static void
…		…
1328	}	1599	}
1329		1600
1330	void	1601	void
1331	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)
1332	{	1603	{
1333	struct ev_once *once = malloc (sizeof (struct ev_once));	1604	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1334		1605
1335	if (!once)	1606	if (!once)
1336	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1607	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1337	else	1608	else
1338	{	1609	{
1339	once->cb = cb;	1610	once->cb = cb;
1340	once->arg = arg;	1611	once->arg = arg;
1341		1612
1342	ev_watcher_init (&once->io, once_cb_io);	1613	ev_init (&once->io, once_cb_io);
1343	if (fd >= 0)	1614	if (fd >= 0)
1344	{	1615	{
1345	ev_io_set (&once->io, fd, events);	1616	ev_io_set (&once->io, fd, events);
1346	ev_io_start (EV_A_ &once->io);	1617	ev_io_start (EV_A_ &once->io);
1347	}	1618	}
1348		1619
1349	ev_watcher_init (&once->to, once_cb_to);	1620	ev_init (&once->to, once_cb_to);
1350	if (timeout >= 0.)	1621	if (timeout >= 0.)
1351	{	1622	{
1352	ev_timer_set (&once->to, timeout, 0.);	1623	ev_timer_set (&once->to, timeout, 0.);
1353	ev_timer_start (EV_A_ &once->to);	1624	ev_timer_start (EV_A_ &once->to);
1354	}	1625	}
1355	}	1626	}
1356	}	1627	}
1357		1628
		1629	#ifdef __cplusplus
		1630	}
		1631	#endif
		1632

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Comparing libev/ev.c (file contents): Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs. Revision 1.102 by root, Sun Nov 11 17:56:11 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.102 by root, Sun Nov 11 17:56:11 2007 UTC