[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 1.90 by root, Sun Nov 11 00:05:59 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
35	# define EV_USE_MONOTONIC 1	40	# define EV_USE_MONOTONIC 1
…		…
46		51
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	52	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	53	# define EV_USE_EPOLL 1
49	# endif	54	# endif
50		55
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	56	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	57	# define EV_USE_KQUEUE 1
53	# endif	58	# endif
54		59
55	#endif	60	#endif
56		61
57	#include <math.h>	62	#include <math.h>
58	#include <stdlib.h>	63	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	64	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	65	#include <stddef.h>
63		66
64	#include <stdio.h>	67	#include <stdio.h>
65		68
66	#include <assert.h>	69	#include <assert.h>
67	#include <errno.h>	70	#include <errno.h>
68	#include <sys/types.h>	71	#include <sys/types.h>
		72	#include <time.h>
		73
		74	#include <signal.h>
		75
69	#ifndef WIN32	76	#ifndef WIN32
		77	# include <unistd.h>
		78	# include <sys/time.h>
70	# include <sys/wait.h>	79	# include <sys/wait.h>
71	#endif	80	#endif
72	#include <sys/time.h>
73	#include <time.h>
74
75	/**/	81	/**/
76		82
77	#ifndef EV_USE_MONOTONIC	83	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	84	# define EV_USE_MONOTONIC 1
79	#endif	85	#endif
…		…
90	# define EV_USE_EPOLL 0	96	# define EV_USE_EPOLL 0
91	#endif	97	#endif
92		98
93	#ifndef EV_USE_KQUEUE	99	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	100	# define EV_USE_KQUEUE 0
		101	#endif
		102
		103	#ifndef EV_USE_WIN32
		104	# ifdef WIN32
		105	# define EV_USE_WIN32 0 /* it does not exist, use select */
		106	# undef EV_USE_SELECT
		107	# define EV_USE_SELECT 1
		108	# else
		109	# define EV_USE_WIN32 0
		110	# endif
95	#endif	111	#endif
96		112
97	#ifndef EV_USE_REALTIME	113	#ifndef EV_USE_REALTIME
98	# define EV_USE_REALTIME 1	114	# define EV_USE_REALTIME 1
99	#endif	115	#endif
…		…
115	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	131	#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) */	132	#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 */	133	#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 */	134	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
119		135
		136	#ifdef EV_H
		137	# include EV_H
		138	#else
120	#include "ev.h"	139	# include "ev.h"
		140	#endif
121		141
122	#if __GNUC__ >= 3	142	#if __GNUC__ >= 3
123	# define expect(expr,value) __builtin_expect ((expr),(value))	143	# define expect(expr,value) __builtin_expect ((expr),(value))
124	# define inline inline	144	# define inline inline
125	#else	145	#else
…		…
137	typedef struct ev_watcher_list *WL;	157	typedef struct ev_watcher_list *WL;
138	typedef struct ev_watcher_time *WT;	158	typedef struct ev_watcher_time *WT;
139		159
140	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	160	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
141		161
		162	#include "ev_win32.c"
		163
142	/*****************************************************************************/	164	/*****************************************************************************/
143		165
		166	static void (syserr_cb)(const char msg);
		167
		168	void ev_set_syserr_cb (void (cb)(const char msg))
		169	{
		170	syserr_cb = cb;
		171	}
		172
		173	static void
		174	syserr (const char *msg)
		175	{
		176	if (!msg)
		177	msg = "(libev) system error";
		178
		179	if (syserr_cb)
		180	syserr_cb (msg);
		181	else
		182	{
		183	perror (msg);
		184	abort ();
		185	}
		186	}
		187
		188	static void (alloc)(void *ptr, long size);
		189
		190	void ev_set_allocator (void (cb)(void *ptr, long size))
		191	{
		192	alloc = cb;
		193	}
		194
		195	static void *
		196	ev_realloc (void *ptr, long size)
		197	{
		198	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		199
		200	if (!ptr && size)
		201	{
		202	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		203	abort ();
		204	}
		205
		206	return ptr;
		207	}
		208
		209	#define ev_malloc(size) ev_realloc (0, (size))
		210	#define ev_free(ptr) ev_realloc ((ptr), 0)
		211
		212	/*****************************************************************************/
		213
144	typedef struct	214	typedef struct
145	{	215	{
146	struct ev_watcher_list *head;	216	WL head;
147	unsigned char events;	217	unsigned char events;
148	unsigned char reify;	218	unsigned char reify;
149	} ANFD;	219	} ANFD;
150		220
151	typedef struct	221	typedef struct
…		…
154	int events;	224	int events;
155	} ANPENDING;	225	} ANPENDING;
156		226
157	#if EV_MULTIPLICITY	227	#if EV_MULTIPLICITY
158		228
159	struct ev_loop	229	struct ev_loop
160	{	230	{
		231	ev_tstamp ev_rt_now;
161	# define VAR(name,decl) decl;	232	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	233	#include "ev_vars.h"
163	};
164	# undef VAR	234	#undef VAR
		235	};
165	# include "ev_wrap.h"	236	#include "ev_wrap.h"
		237
		238	struct ev_loop default_loop_struct;
		239	static struct ev_loop *default_loop;
166		240
167	#else	241	#else
168		242
		243	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	244	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	245	#include "ev_vars.h"
171	# undef VAR	246	#undef VAR
		247
		248	static int default_loop;
172		249
173	#endif	250	#endif
174		251
175	/*****************************************************************************/	252	/*****************************************************************************/
176		253
…		…
201	#endif	278	#endif
202		279
203	return ev_time ();	280	return ev_time ();
204	}	281	}
205		282
		283	#if EV_MULTIPLICITY
206	ev_tstamp	284	ev_tstamp
207	ev_now (EV_P)	285	ev_now (EV_P)
208	{	286	{
209	return rt_now;	287	return ev_rt_now;
210	}	288	}
		289	#endif
211		290
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	291	#define array_roundsize(type,n) ((n) \| 4 & ~3)
213		292
214	#define array_needsize(base,cur,cnt,init) \	293	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	294	if (expect_false ((cnt) > cur)) \
216	{ \	295	{ \
217	int newcnt = cur; \	296	int newcnt = cur; \
218	do \	297	do \
219	{ \	298	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	299	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	300	} \
222	while ((cnt) > newcnt); \	301	while ((cnt) > newcnt); \
223	\	302	\
224	base = realloc (base, sizeof (base) (newcnt)); \	303	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	304	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	305	cur = newcnt; \
227	}	306	}
		307
		308	#define array_slim(type,stem) \
		309	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		310	{ \
		311	stem ## max = array_roundsize (stem ## cnt >> 1); \
		312	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		313	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		314	}
		315
		316	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		317	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		318	#define array_free_microshit(stem) \
		319	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		320
		321	#define array_free(stem, idx) \
		322	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		323
229	/*****************************************************************************/	324	/*****************************************************************************/
230		325
231	static void	326	static void
232	anfds_init (ANFD *base, int count)	327	anfds_init (ANFD *base, int count)
…		…
239		334
240	++base;	335	++base;
241	}	336	}
242	}	337	}
243		338
244	static void	339	void
245	event (EV_P_ W w, int events)	340	ev_feed_event (EV_P_ void *w, int revents)
246	{	341	{
		342	W w_ = (W)w;
		343
247	if (w->pending)	344	if (w_->pending)
248	{	345	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	346	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	347	return;
251	}	348	}
252		349
253	w->pending = ++pendingcnt [ABSPRI (w)];	350	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	351	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	352	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	353	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	354	}
258		355
259	static void	356	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	357	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	358	{
262	int i;	359	int i;
263		360
264	for (i = 0; i < eventcnt; ++i)	361	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	362	ev_feed_event (EV_A_ events [i], type);
266	}	363	}
267		364
268	static void	365	inline void
269	fd_event (EV_P_ int fd, int events)	366	fd_event (EV_P_ int fd, int revents)
270	{	367	{
271	ANFD *anfd = anfds + fd;	368	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	369	struct ev_io *w;
273		370
274	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	371	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
275	{	372	{
276	int ev = w->events & events;	373	int ev = w->events & revents;
277		374
278	if (ev)	375	if (ev)
279	event (EV_A_ (W)w, ev);	376	ev_feed_event (EV_A_ (W)w, ev);
280	}	377	}
		378	}
		379
		380	void
		381	ev_feed_fd_event (EV_P_ int fd, int revents)
		382	{
		383	fd_event (EV_A_ fd, revents);
281	}	384	}
282		385
283	/*****************************************************************************/	386	/*****************************************************************************/
284		387
285	static void	388	static void
…		…
298	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	401	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
299	events \|= w->events;	402	events \|= w->events;
300		403
301	anfd->reify = 0;	404	anfd->reify = 0;
302		405
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	406	method_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	407	anfd->events = events;
307	}
308	}	408	}
309		409
310	fdchangecnt = 0;	410	fdchangecnt = 0;
311	}	411	}
312		412
313	static void	413	static void
314	fd_change (EV_P_ int fd)	414	fd_change (EV_P_ int fd)
315	{	415	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	416	if (anfds [fd].reify)
317	return;	417	return;
318		418
319	anfds [fd].reify = 1;	419	anfds [fd].reify = 1;
320		420
321	++fdchangecnt;	421	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	422	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
323	fdchanges [fdchangecnt - 1] = fd;	423	fdchanges [fdchangecnt - 1] = fd;
324	}	424	}
325		425
326	static void	426	static void
327	fd_kill (EV_P_ int fd)	427	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	429	struct ev_io *w;
330		430
331	while ((w = (struct ev_io *)anfds [fd].head))	431	while ((w = (struct ev_io *)anfds [fd].head))
332	{	432	{
333	ev_io_stop (EV_A_ w);	433	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	434	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
335	}	435	}
		436	}
		437
		438	static int
		439	fd_valid (int fd)
		440	{
		441	#ifdef WIN32
		442	return !!win32_get_osfhandle (fd);
		443	#else
		444	return fcntl (fd, F_GETFD) != -1;
		445	#endif
336	}	446	}
337		447
338	/* called on EBADF to verify fds */	448	/* called on EBADF to verify fds */
339	static void	449	static void
340	fd_ebadf (EV_P)	450	fd_ebadf (EV_P)
341	{	451	{
342	int fd;	452	int fd;
343		453
344	for (fd = 0; fd < anfdmax; ++fd)	454	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	455	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	456	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	457	fd_kill (EV_A_ fd);
348	}	458	}
349		459
350	/* called on ENOMEM in select/poll to kill some fds and retry */	460	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	461	static void
352	fd_enomem (EV_P)	462	fd_enomem (EV_P)
353	{	463	{
354	int fd = anfdmax;	464	int fd;
355		465
356	while (fd--)	466	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	467	if (anfds [fd].events)
358	{	468	{
359	close (fd);
360	fd_kill (EV_A_ fd);	469	fd_kill (EV_A_ fd);
361	return;	470	return;
362	}	471	}
363	}	472	}
364		473
365	/* susually called after fork if method needs to re-arm all fds from scratch */	474	/* usually called after fork if method needs to re-arm all fds from scratch */
366	static void	475	static void
367	fd_rearm_all (EV_P)	476	fd_rearm_all (EV_P)
368	{	477	{
369	int fd;	478	int fd;
370		479
…		…
385	WT w = heap [k];	494	WT w = heap [k];
386		495
387	while (k && heap [k >> 1]->at > w->at)	496	while (k && heap [k >> 1]->at > w->at)
388	{	497	{
389	heap [k] = heap [k >> 1];	498	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	499	((W)heap [k])->active = k + 1;
391	k >>= 1;	500	k >>= 1;
392	}	501	}
393		502
394	heap [k] = w;	503	heap [k] = w;
395	heap [k]->active = k + 1;	504	((W)heap [k])->active = k + 1;
396		505
397	}	506	}
398		507
399	static void	508	static void
400	downheap (WT *heap, int N, int k)	509	downheap (WT *heap, int N, int k)
…		…
410		519
411	if (w->at <= heap [j]->at)	520	if (w->at <= heap [j]->at)
412	break;	521	break;
413		522
414	heap [k] = heap [j];	523	heap [k] = heap [j];
415	heap [k]->active = k + 1;	524	((W)heap [k])->active = k + 1;
416	k = j;	525	k = j;
417	}	526	}
418		527
419	heap [k] = w;	528	heap [k] = w;
420	heap [k]->active = k + 1;	529	((W)heap [k])->active = k + 1;
		530	}
		531
		532	inline void
		533	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		534	{
		535	ev_tstamp old_at = heap [k]->at;
		536	heap [k]->at = at;
		537
		538	if (old_at < at)
		539	downheap (heap, N, k);
		540	else
		541	upheap (heap, k);
421	}	542	}
422		543
423	/*****************************************************************************/	544	/*****************************************************************************/
424		545
425	typedef struct	546	typedef struct
426	{	547	{
427	struct ev_watcher_list *head;	548	WL head;
428	sig_atomic_t volatile gotsig;	549	sig_atomic_t volatile gotsig;
429	} ANSIG;	550	} ANSIG;
430		551
431	static ANSIG *signals;	552	static ANSIG *signals;
432	static int signalmax;	553	static int signalmax;
…		…
448	}	569	}
449		570
450	static void	571	static void
451	sighandler (int signum)	572	sighandler (int signum)
452	{	573	{
		574	#if WIN32
		575	signal (signum, sighandler);
		576	#endif
		577
453	signals [signum - 1].gotsig = 1;	578	signals [signum - 1].gotsig = 1;
454		579
455	if (!gotsig)	580	if (!gotsig)
456	{	581	{
457	int old_errno = errno;	582	int old_errno = errno;
458	gotsig = 1;	583	gotsig = 1;
		584	#ifdef WIN32
		585	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		586	#else
459	write (sigpipe [1], &signum, 1);	587	write (sigpipe [1], &signum, 1);
		588	#endif
460	errno = old_errno;	589	errno = old_errno;
461	}	590	}
462	}	591	}
463		592
		593	void
		594	ev_feed_signal_event (EV_P_ int signum)
		595	{
		596	WL w;
		597
		598	#if EV_MULTIPLICITY
		599	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		600	#endif
		601
		602	--signum;
		603
		604	if (signum < 0 \|\| signum >= signalmax)
		605	return;
		606
		607	signals [signum].gotsig = 0;
		608
		609	for (w = signals [signum].head; w; w = w->next)
		610	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		611	}
		612
464	static void	613	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	614	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	615	{
467	struct ev_watcher_list *w;
468	int signum;	616	int signum;
469		617
		618	#ifdef WIN32
		619	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		620	#else
470	read (sigpipe [0], &revents, 1);	621	read (sigpipe [0], &revents, 1);
		622	#endif
471	gotsig = 0;	623	gotsig = 0;
472		624
473	for (signum = signalmax; signum--; )	625	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	626	if (signals [signum].gotsig)
475	{	627	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	}	628	}
482		629
483	static void	630	static void
484	siginit (EV_P)	631	siginit (EV_P)
485	{	632	{
…		…
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	644	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	645	}
499		646
500	/*****************************************************************************/	647	/*****************************************************************************/
501		648
		649	static struct ev_child *childs [PID_HASHSIZE];
		650
502	#ifndef WIN32	651	#ifndef WIN32
503		652
504	static struct ev_child *childs [PID_HASHSIZE];
505	static struct ev_signal childev;	653	static struct ev_signal childev;
506		654
507	#ifndef WCONTINUED	655	#ifndef WCONTINUED
508	# define WCONTINUED 0	656	# define WCONTINUED 0
509	#endif	657	#endif
…		…
514	struct ev_child *w;	662	struct ev_child *w;
515		663
516	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	664	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)	665	if (w->pid == pid \|\| !w->pid)
518	{	666	{
519	w->priority = sw->priority; /* need to do it now */	667	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	668	w->rpid = pid;
521	w->rstatus = status;	669	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	670	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	671	}
524	}	672	}
525		673
526	static void	674	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	675	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	677	int pid, status;
530		678
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	679	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	680	{
533	/* make sure we are called again until all childs have been reaped */	681	/* make sure we are called again until all childs have been reaped */
534	event (EV_A_ (W)sw, EV_SIGNAL);	682	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		683
536	child_reap (EV_A_ sw, pid, pid, status);	684	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 */	685	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
538	}	686	}
539	}	687	}
…		…
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	744	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	745	have_monotonic = 1;
598	}	746	}
599	#endif	747	#endif
600		748
601	rt_now = ev_time ();	749	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	750	mn_now = get_clock ();
603	now_floor = mn_now;	751	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	752	rtmn_diff = ev_rt_now - mn_now;
605		753
606	if (methods == EVMETHOD_AUTO)	754	if (methods == EVMETHOD_AUTO)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	755	if (!enable_secure () && getenv ("LIBEV_METHODS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	756	methods = atoi (getenv ("LIBEV_METHODS"));
609	else	757	else
610	methods = EVMETHOD_ANY;	758	methods = EVMETHOD_ANY;
611		759
612	method = 0;	760	method = 0;
		761	#if EV_USE_WIN32
		762	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		763	#endif
613	#if EV_USE_KQUEUE	764	#if EV_USE_KQUEUE
614	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	765	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
615	#endif	766	#endif
616	#if EV_USE_EPOLL	767	#if EV_USE_EPOLL
617	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	768	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
…		…
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	771	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
621	#endif	772	#endif
622	#if EV_USE_SELECT	773	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	774	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
624	#endif	775	#endif
		776
		777	ev_init (&sigev, sigcb);
		778	ev_set_priority (&sigev, EV_MAXPRI);
625	}	779	}
626	}	780	}
627		781
628	void	782	void
629	loop_destroy (EV_P)	783	loop_destroy (EV_P)
630	{	784	{
		785	int i;
		786
		787	#if EV_USE_WIN32
		788	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		789	#endif
631	#if EV_USE_KQUEUE	790	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	791	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633	#endif	792	#endif
634	#if EV_USE_EPOLL	793	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	794	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
639	#endif	798	#endif
640	#if EV_USE_SELECT	799	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	800	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642	#endif	801	#endif
643		802
		803	for (i = NUMPRI; i--; )
		804	array_free (pending, [i]);
		805
		806	/* have to use the microsoft-never-gets-it-right macro */
		807	array_free_microshit (fdchange);
		808	array_free_microshit (timer);
		809	array_free_microshit (periodic);
		810	array_free_microshit (idle);
		811	array_free_microshit (prepare);
		812	array_free_microshit (check);
		813
644	method = 0;	814	method = 0;
645	/TODO/
646	}	815	}
647		816
648	void	817	static void
649	loop_fork (EV_P)	818	loop_fork (EV_P)
650	{	819	{
651	/TODO/
652	#if EV_USE_EPOLL	820	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	821	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654	#endif	822	#endif
655	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	824	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
657	#endif	825	#endif
		826
		827	if (ev_is_active (&sigev))
		828	{
		829	/* default loop */
		830
		831	ev_ref (EV_A);
		832	ev_io_stop (EV_A_ &sigev);
		833	close (sigpipe [0]);
		834	close (sigpipe [1]);
		835
		836	while (pipe (sigpipe))
		837	syserr ("(libev) error creating pipe");
		838
		839	siginit (EV_A);
		840	}
		841
		842	postfork = 0;
658	}	843	}
659		844
660	#if EV_MULTIPLICITY	845	#if EV_MULTIPLICITY
661	struct ev_loop *	846	struct ev_loop *
662	ev_loop_new (int methods)	847	ev_loop_new (int methods)
663	{	848	{
664	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	849	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		850
		851	memset (loop, 0, sizeof (struct ev_loop));
665		852
666	loop_init (EV_A_ methods);	853	loop_init (EV_A_ methods);
667		854
668	if (ev_method (EV_A))	855	if (ev_method (EV_A))
669	return loop;	856	return loop;
…		…
673		860
674	void	861	void
675	ev_loop_destroy (EV_P)	862	ev_loop_destroy (EV_P)
676	{	863	{
677	loop_destroy (EV_A);	864	loop_destroy (EV_A);
678	free (loop);	865	ev_free (loop);
679	}	866	}
680		867
681	void	868	void
682	ev_loop_fork (EV_P)	869	ev_loop_fork (EV_P)
683	{	870	{
684	loop_fork (EV_A);	871	postfork = 1;
685	}	872	}
686		873
687	#endif	874	#endif
688		875
689	#if EV_MULTIPLICITY	876	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	877	struct ev_loop *
694	#else	878	#else
695	static int default_loop;
696
697	int	879	int
698	#endif	880	#endif
699	ev_default_loop (int methods)	881	ev_default_loop (int methods)
700	{	882	{
701	if (sigpipe [0] == sigpipe [1])	883	if (sigpipe [0] == sigpipe [1])
…		…
712		894
713	loop_init (EV_A_ methods);	895	loop_init (EV_A_ methods);
714		896
715	if (ev_method (EV_A))	897	if (ev_method (EV_A))
716	{	898	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	899	siginit (EV_A);
720		900
721	#ifndef WIN32	901	#ifndef WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	902	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	903	ev_set_priority (&childev, EV_MAXPRI);
…		…
737	{	917	{
738	#if EV_MULTIPLICITY	918	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	919	struct ev_loop *loop = default_loop;
740	#endif	920	#endif
741		921
		922	#ifndef WIN32
742	ev_ref (EV_A); /* child watcher */	923	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	924	ev_signal_stop (EV_A_ &childev);
		925	#endif
744		926
745	ev_ref (EV_A); /* signal watcher */	927	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	928	ev_io_stop (EV_A_ &sigev);
747		929
748	close (sigpipe [0]); sigpipe [0] = 0;	930	close (sigpipe [0]); sigpipe [0] = 0;
…		…
756	{	938	{
757	#if EV_MULTIPLICITY	939	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	940	struct ev_loop *loop = default_loop;
759	#endif	941	#endif
760		942
761	loop_fork (EV_A);	943	if (method)
762		944	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	}	945	}
771		946
772	/*****************************************************************************/	947	/*****************************************************************************/
		948
		949	static int
		950	any_pending (EV_P)
		951	{
		952	int pri;
		953
		954	for (pri = NUMPRI; pri--; )
		955	if (pendingcnt [pri])
		956	return 1;
		957
		958	return 0;
		959	}
773		960
774	static void	961	static void
775	call_pending (EV_P)	962	call_pending (EV_P)
776	{	963	{
777	int pri;	964	int pri;
…		…
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	969	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		970
784	if (p->w)	971	if (p->w)
785	{	972	{
786	p->w->pending = 0;	973	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	974	EV_CB_INVOKE (p->w, p->events);
788	}	975	}
789	}	976	}
790	}	977	}
791		978
792	static void	979	static void
793	timers_reify (EV_P)	980	timers_reify (EV_P)
794	{	981	{
795	while (timercnt && timers [0]->at <= mn_now)	982	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	983	{
797	struct ev_timer *w = timers [0];	984	struct ev_timer *w = timers [0];
798		985
799	assert (("inactive timer on timer heap detected", ev_is_active (w)));	986	assert (("inactive timer on timer heap detected", ev_is_active (w)));
800		987
801	/* first reschedule or stop timer */	988	/* first reschedule or stop timer */
802	if (w->repeat)	989	if (w->repeat)
803	{	990	{
804	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	991	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		992
805	w->at = mn_now + w->repeat;	993	((WT)w)->at += w->repeat;
		994	if (((WT)w)->at < mn_now)
		995	((WT)w)->at = mn_now;
		996
806	downheap ((WT *)timers, timercnt, 0);	997	downheap ((WT *)timers, timercnt, 0);
807	}	998	}
808	else	999	else
809	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1000	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
810		1001
811	event (EV_A_ (W)w, EV_TIMEOUT);	1002	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
812	}	1003	}
813	}	1004	}
814		1005
815	static void	1006	static void
816	periodics_reify (EV_P)	1007	periodics_reify (EV_P)
817	{	1008	{
818	while (periodiccnt && periodics [0]->at <= rt_now)	1009	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
819	{	1010	{
820	struct ev_periodic *w = periodics [0];	1011	struct ev_periodic *w = periodics [0];
821		1012
822	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1013	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
823		1014
824	/* first reschedule or stop timer */	1015	/* first reschedule or stop timer */
825	if (w->interval)	1016	if (w->reschedule_cb)
826	{	1017	{
		1018	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1019
		1020	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1021	downheap ((WT *)periodics, periodiccnt, 0);
		1022	}
		1023	else if (w->interval)
		1024	{
827	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1025	((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));	1026	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);	1027	downheap ((WT *)periodics, periodiccnt, 0);
830	}	1028	}
831	else	1029	else
832	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1030	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
833		1031
834	event (EV_A_ (W)w, EV_PERIODIC);	1032	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
835	}	1033	}
836	}	1034	}
837		1035
838	static void	1036	static void
839	periodics_reschedule (EV_P)	1037	periodics_reschedule (EV_P)
…		…
843	/* adjust periodics after time jump */	1041	/* adjust periodics after time jump */
844	for (i = 0; i < periodiccnt; ++i)	1042	for (i = 0; i < periodiccnt; ++i)
845	{	1043	{
846	struct ev_periodic *w = periodics [i];	1044	struct ev_periodic *w = periodics [i];
847		1045
		1046	if (w->reschedule_cb)
		1047	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
848	if (w->interval)	1048	else if (w->interval)
849	{
850	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1049	((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	}	1050	}
		1051
		1052	/* now rebuild the heap */
		1053	for (i = periodiccnt >> 1; i--; )
		1054	downheap ((WT *)periodics, periodiccnt, i);
861	}	1055	}
862		1056
863	inline int	1057	inline int
864	time_update_monotonic (EV_P)	1058	time_update_monotonic (EV_P)
865	{	1059	{
866	mn_now = get_clock ();	1060	mn_now = get_clock ();
867		1061
868	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1062	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
869	{	1063	{
870	rt_now = rtmn_diff + mn_now;	1064	ev_rt_now = rtmn_diff + mn_now;
871	return 0;	1065	return 0;
872	}	1066	}
873	else	1067	else
874	{	1068	{
875	now_floor = mn_now;	1069	now_floor = mn_now;
876	rt_now = ev_time ();	1070	ev_rt_now = ev_time ();
877	return 1;	1071	return 1;
878	}	1072	}
879	}	1073	}
880		1074
881	static void	1075	static void
…		…
890	{	1084	{
891	ev_tstamp odiff = rtmn_diff;	1085	ev_tstamp odiff = rtmn_diff;
892		1086
893	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1087	for (i = 4; --i; ) /* loop a few times, before making important decisions */
894	{	1088	{
895	rtmn_diff = rt_now - mn_now;	1089	rtmn_diff = ev_rt_now - mn_now;
896		1090
897	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1091	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
898	return; /* all is well */	1092	return; /* all is well */
899		1093
900	rt_now = ev_time ();	1094	ev_rt_now = ev_time ();
901	mn_now = get_clock ();	1095	mn_now = get_clock ();
902	now_floor = mn_now;	1096	now_floor = mn_now;
903	}	1097	}
904		1098
905	periodics_reschedule (EV_A);	1099	periodics_reschedule (EV_A);
…		…
908	}	1102	}
909	}	1103	}
910	else	1104	else
911	#endif	1105	#endif
912	{	1106	{
913	rt_now = ev_time ();	1107	ev_rt_now = ev_time ();
914		1108
915	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1109	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
916	{	1110	{
917	periodics_reschedule (EV_A);	1111	periodics_reschedule (EV_A);
918		1112
919	/* adjust timers. this is easy, as the offset is the same for all */	1113	/* adjust timers. this is easy, as the offset is the same for all */
920	for (i = 0; i < timercnt; ++i)	1114	for (i = 0; i < timercnt; ++i)
921	timers [i]->at += rt_now - mn_now;	1115	((WT)timers [i])->at += ev_rt_now - mn_now;
922	}	1116	}
923		1117
924	mn_now = rt_now;	1118	mn_now = ev_rt_now;
925	}	1119	}
926	}	1120	}
927		1121
928	void	1122	void
929	ev_ref (EV_P)	1123	ev_ref (EV_P)
…		…
952	{	1146	{
953	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1147	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
954	call_pending (EV_A);	1148	call_pending (EV_A);
955	}	1149	}
956		1150
		1151	/* we might have forked, so reify kernel state if necessary */
		1152	if (expect_false (postfork))
		1153	loop_fork (EV_A);
		1154
957	/* update fd-related kernel structures */	1155	/* update fd-related kernel structures */
958	fd_reify (EV_A);	1156	fd_reify (EV_A);
959		1157
960	/* calculate blocking time */	1158	/* calculate blocking time */
961		1159
962	/* we only need this for !monotonic clockor timers, but as we basically	1160	/* we only need this for !monotonic clock or timers, but as we basically
963	always have timers, we just calculate it always */	1161	always have timers, we just calculate it always */
964	#if EV_USE_MONOTONIC	1162	#if EV_USE_MONOTONIC
965	if (expect_true (have_monotonic))	1163	if (expect_true (have_monotonic))
966	time_update_monotonic (EV_A);	1164	time_update_monotonic (EV_A);
967	else	1165	else
968	#endif	1166	#endif
969	{	1167	{
970	rt_now = ev_time ();	1168	ev_rt_now = ev_time ();
971	mn_now = rt_now;	1169	mn_now = ev_rt_now;
972	}	1170	}
973		1171
974	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1172	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
975	block = 0.;	1173	block = 0.;
976	else	1174	else
977	{	1175	{
978	block = MAX_BLOCKTIME;	1176	block = MAX_BLOCKTIME;
979		1177
980	if (timercnt)	1178	if (timercnt)
981	{	1179	{
982	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1180	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
983	if (block > to) block = to;	1181	if (block > to) block = to;
984	}	1182	}
985		1183
986	if (periodiccnt)	1184	if (periodiccnt)
987	{	1185	{
988	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1186	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
989	if (block > to) block = to;	1187	if (block > to) block = to;
990	}	1188	}
991		1189
992	if (block < 0.) block = 0.;	1190	if (block < 0.) block = 0.;
993	}	1191	}
994		1192
995	method_poll (EV_A_ block);	1193	method_poll (EV_A_ block);
996		1194
997	/* update rt_now, do magic */	1195	/* update ev_rt_now, do magic */
998	time_update (EV_A);	1196	time_update (EV_A);
999		1197
1000	/* queue pending timers and reschedule them */	1198	/* queue pending timers and reschedule them */
1001	timers_reify (EV_A); /* relative timers called last */	1199	timers_reify (EV_A); /* relative timers called last */
1002	periodics_reify (EV_A); /* absolute timers called first */	1200	periodics_reify (EV_A); /* absolute timers called first */
1003		1201
1004	/* queue idle watchers unless io or timers are pending */	1202	/* queue idle watchers unless io or timers are pending */
1005	if (!pendingcnt)	1203	if (idlecnt && !any_pending (EV_A))
1006	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1204	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1007		1205
1008	/* queue check watchers, to be executed first */	1206	/* queue check watchers, to be executed first */
1009	if (checkcnt)	1207	if (checkcnt)
1010	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1208	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1085	return;	1283	return;
1086		1284
1087	assert (("ev_io_start called with negative fd", fd >= 0));	1285	assert (("ev_io_start called with negative fd", fd >= 0));
1088		1286
1089	ev_start (EV_A_ (W)w, 1);	1287	ev_start (EV_A_ (W)w, 1);
1090	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1288	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1091	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1289	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1092		1290
1093	fd_change (EV_A_ fd);	1291	fd_change (EV_A_ fd);
1094	}	1292	}
1095		1293
…		…
1098	{	1296	{
1099	ev_clear_pending (EV_A_ (W)w);	1297	ev_clear_pending (EV_A_ (W)w);
1100	if (!ev_is_active (w))	1298	if (!ev_is_active (w))
1101	return;	1299	return;
1102		1300
		1301	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1302
1103	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1303	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1104	ev_stop (EV_A_ (W)w);	1304	ev_stop (EV_A_ (W)w);
1105		1305
1106	fd_change (EV_A_ w->fd);	1306	fd_change (EV_A_ w->fd);
1107	}	1307	}
…		…
1110	ev_timer_start (EV_P_ struct ev_timer *w)	1310	ev_timer_start (EV_P_ struct ev_timer *w)
1111	{	1311	{
1112	if (ev_is_active (w))	1312	if (ev_is_active (w))
1113	return;	1313	return;
1114		1314
1115	w->at += mn_now;	1315	((WT)w)->at += mn_now;
1116		1316
1117	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1317	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1118		1318
1119	ev_start (EV_A_ (W)w, ++timercnt);	1319	ev_start (EV_A_ (W)w, ++timercnt);
1120	array_needsize (timers, timermax, timercnt, );	1320	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1121	timers [timercnt - 1] = w;	1321	timers [timercnt - 1] = w;
1122	upheap ((WT *)timers, timercnt - 1);	1322	upheap ((WT *)timers, timercnt - 1);
		1323
		1324	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1123	}	1325	}
1124		1326
1125	void	1327	void
1126	ev_timer_stop (EV_P_ struct ev_timer *w)	1328	ev_timer_stop (EV_P_ struct ev_timer *w)
1127	{	1329	{
1128	ev_clear_pending (EV_A_ (W)w);	1330	ev_clear_pending (EV_A_ (W)w);
1129	if (!ev_is_active (w))	1331	if (!ev_is_active (w))
1130	return;	1332	return;
1131		1333
		1334	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1335
1132	if (w->active < timercnt--)	1336	if (((W)w)->active < timercnt--)
1133	{	1337	{
1134	timers [w->active - 1] = timers [timercnt];	1338	timers [((W)w)->active - 1] = timers [timercnt];
1135	downheap ((WT *)timers, timercnt, w->active - 1);	1339	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1136	}	1340	}
1137		1341
1138	w->at = w->repeat;	1342	((WT)w)->at = w->repeat;
1139		1343
1140	ev_stop (EV_A_ (W)w);	1344	ev_stop (EV_A_ (W)w);
1141	}	1345	}
1142		1346
1143	void	1347	void
1144	ev_timer_again (EV_P_ struct ev_timer *w)	1348	ev_timer_again (EV_P_ struct ev_timer *w)
1145	{	1349	{
1146	if (ev_is_active (w))	1350	if (ev_is_active (w))
1147	{	1351	{
1148	if (w->repeat)	1352	if (w->repeat)
1149	{
1150	w->at = mn_now + w->repeat;
1151	downheap ((WT *)timers, timercnt, w->active - 1);	1353	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
1152	}
1153	else	1354	else
1154	ev_timer_stop (EV_A_ w);	1355	ev_timer_stop (EV_A_ w);
1155	}	1356	}
1156	else if (w->repeat)	1357	else if (w->repeat)
1157	ev_timer_start (EV_A_ w);	1358	ev_timer_start (EV_A_ w);
…		…
1161	ev_periodic_start (EV_P_ struct ev_periodic *w)	1362	ev_periodic_start (EV_P_ struct ev_periodic *w)
1162	{	1363	{
1163	if (ev_is_active (w))	1364	if (ev_is_active (w))
1164	return;	1365	return;
1165		1366
		1367	if (w->reschedule_cb)
		1368	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1369	else if (w->interval)
		1370	{
1166	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1371	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 */	1372	/* 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;	1373	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1374	}
1171		1375
1172	ev_start (EV_A_ (W)w, ++periodiccnt);	1376	ev_start (EV_A_ (W)w, ++periodiccnt);
1173	array_needsize (periodics, periodicmax, periodiccnt, );	1377	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1174	periodics [periodiccnt - 1] = w;	1378	periodics [periodiccnt - 1] = w;
1175	upheap ((WT *)periodics, periodiccnt - 1);	1379	upheap ((WT *)periodics, periodiccnt - 1);
		1380
		1381	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1176	}	1382	}
1177		1383
1178	void	1384	void
1179	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1385	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1180	{	1386	{
1181	ev_clear_pending (EV_A_ (W)w);	1387	ev_clear_pending (EV_A_ (W)w);
1182	if (!ev_is_active (w))	1388	if (!ev_is_active (w))
1183	return;	1389	return;
1184		1390
		1391	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1392
1185	if (w->active < periodiccnt--)	1393	if (((W)w)->active < periodiccnt--)
1186	{	1394	{
1187	periodics [w->active - 1] = periodics [periodiccnt];	1395	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1188	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1396	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1189	}	1397	}
1190		1398
1191	ev_stop (EV_A_ (W)w);	1399	ev_stop (EV_A_ (W)w);
1192	}	1400	}
1193		1401
1194	void	1402	void
		1403	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1404	{
		1405	/* TODO: use adjustheap and recalculation */
		1406	ev_periodic_stop (EV_A_ w);
		1407	ev_periodic_start (EV_A_ w);
		1408	}
		1409
		1410	void
1195	ev_idle_start (EV_P_ struct ev_idle *w)	1411	ev_idle_start (EV_P_ struct ev_idle *w)
1196	{	1412	{
1197	if (ev_is_active (w))	1413	if (ev_is_active (w))
1198	return;	1414	return;
1199		1415
1200	ev_start (EV_A_ (W)w, ++idlecnt);	1416	ev_start (EV_A_ (W)w, ++idlecnt);
1201	array_needsize (idles, idlemax, idlecnt, );	1417	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1202	idles [idlecnt - 1] = w;	1418	idles [idlecnt - 1] = w;
1203	}	1419	}
1204		1420
1205	void	1421	void
1206	ev_idle_stop (EV_P_ struct ev_idle *w)	1422	ev_idle_stop (EV_P_ struct ev_idle *w)
1207	{	1423	{
1208	ev_clear_pending (EV_A_ (W)w);	1424	ev_clear_pending (EV_A_ (W)w);
1209	if (ev_is_active (w))	1425	if (ev_is_active (w))
1210	return;	1426	return;
1211		1427
1212	idles [w->active - 1] = idles [--idlecnt];	1428	idles [((W)w)->active - 1] = idles [--idlecnt];
1213	ev_stop (EV_A_ (W)w);	1429	ev_stop (EV_A_ (W)w);
1214	}	1430	}
1215		1431
1216	void	1432	void
1217	ev_prepare_start (EV_P_ struct ev_prepare *w)	1433	ev_prepare_start (EV_P_ struct ev_prepare *w)
1218	{	1434	{
1219	if (ev_is_active (w))	1435	if (ev_is_active (w))
1220	return;	1436	return;
1221		1437
1222	ev_start (EV_A_ (W)w, ++preparecnt);	1438	ev_start (EV_A_ (W)w, ++preparecnt);
1223	array_needsize (prepares, preparemax, preparecnt, );	1439	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1224	prepares [preparecnt - 1] = w;	1440	prepares [preparecnt - 1] = w;
1225	}	1441	}
1226		1442
1227	void	1443	void
1228	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1444	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1229	{	1445	{
1230	ev_clear_pending (EV_A_ (W)w);	1446	ev_clear_pending (EV_A_ (W)w);
1231	if (ev_is_active (w))	1447	if (ev_is_active (w))
1232	return;	1448	return;
1233		1449
1234	prepares [w->active - 1] = prepares [--preparecnt];	1450	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1235	ev_stop (EV_A_ (W)w);	1451	ev_stop (EV_A_ (W)w);
1236	}	1452	}
1237		1453
1238	void	1454	void
1239	ev_check_start (EV_P_ struct ev_check *w)	1455	ev_check_start (EV_P_ struct ev_check *w)
1240	{	1456	{
1241	if (ev_is_active (w))	1457	if (ev_is_active (w))
1242	return;	1458	return;
1243		1459
1244	ev_start (EV_A_ (W)w, ++checkcnt);	1460	ev_start (EV_A_ (W)w, ++checkcnt);
1245	array_needsize (checks, checkmax, checkcnt, );	1461	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1246	checks [checkcnt - 1] = w;	1462	checks [checkcnt - 1] = w;
1247	}	1463	}
1248		1464
1249	void	1465	void
1250	ev_check_stop (EV_P_ struct ev_check *w)	1466	ev_check_stop (EV_P_ struct ev_check *w)
1251	{	1467	{
1252	ev_clear_pending (EV_A_ (W)w);	1468	ev_clear_pending (EV_A_ (W)w);
1253	if (ev_is_active (w))	1469	if (ev_is_active (w))
1254	return;	1470	return;
1255		1471
1256	checks [w->active - 1] = checks [--checkcnt];	1472	checks [((W)w)->active - 1] = checks [--checkcnt];
1257	ev_stop (EV_A_ (W)w);	1473	ev_stop (EV_A_ (W)w);
1258	}	1474	}
1259		1475
1260	#ifndef SA_RESTART	1476	#ifndef SA_RESTART
1261	# define SA_RESTART 0	1477	# define SA_RESTART 0
…		…
1271	return;	1487	return;
1272		1488
1273	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1489	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1274		1490
1275	ev_start (EV_A_ (W)w, 1);	1491	ev_start (EV_A_ (W)w, 1);
1276	array_needsize (signals, signalmax, w->signum, signals_init);	1492	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1277	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1493	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1278		1494
1279	if (!w->next)	1495	if (!((WL)w)->next)
1280	{	1496	{
		1497	#if WIN32
		1498	signal (w->signum, sighandler);
		1499	#else
1281	struct sigaction sa;	1500	struct sigaction sa;
1282	sa.sa_handler = sighandler;	1501	sa.sa_handler = sighandler;
1283	sigfillset (&sa.sa_mask);	1502	sigfillset (&sa.sa_mask);
1284	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1503	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1285	sigaction (w->signum, &sa, 0);	1504	sigaction (w->signum, &sa, 0);
		1505	#endif
1286	}	1506	}
1287	}	1507	}
1288		1508
1289	void	1509	void
1290	ev_signal_stop (EV_P_ struct ev_signal *w)	1510	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1340	void (cb)(int revents, void arg) = once->cb;	1560	void (cb)(int revents, void arg) = once->cb;
1341	void *arg = once->arg;	1561	void *arg = once->arg;
1342		1562
1343	ev_io_stop (EV_A_ &once->io);	1563	ev_io_stop (EV_A_ &once->io);
1344	ev_timer_stop (EV_A_ &once->to);	1564	ev_timer_stop (EV_A_ &once->to);
1345	free (once);	1565	ev_free (once);
1346		1566
1347	cb (revents, arg);	1567	cb (revents, arg);
1348	}	1568	}
1349		1569
1350	static void	1570	static void
…		…
1360	}	1580	}
1361		1581
1362	void	1582	void
1363	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1583	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1364	{	1584	{
1365	struct ev_once *once = malloc (sizeof (struct ev_once));	1585	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1366		1586
1367	if (!once)	1587	if (!once)
1368	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1588	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1369	else	1589	else
1370	{	1590	{
1371	once->cb = cb;	1591	once->cb = cb;
1372	once->arg = arg;	1592	once->arg = arg;
1373		1593
1374	ev_watcher_init (&once->io, once_cb_io);	1594	ev_init (&once->io, once_cb_io);
1375	if (fd >= 0)	1595	if (fd >= 0)
1376	{	1596	{
1377	ev_io_set (&once->io, fd, events);	1597	ev_io_set (&once->io, fd, events);
1378	ev_io_start (EV_A_ &once->io);	1598	ev_io_start (EV_A_ &once->io);
1379	}	1599	}
1380		1600
1381	ev_watcher_init (&once->to, once_cb_to);	1601	ev_init (&once->to, once_cb_to);
1382	if (timeout >= 0.)	1602	if (timeout >= 0.)
1383	{	1603	{
1384	ev_timer_set (&once->to, timeout, 0.);	1604	ev_timer_set (&once->to, timeout, 0.);
1385	ev_timer_start (EV_A_ &once->to);	1605	ev_timer_start (EV_A_ &once->to);
1386	}	1606	}
1387	}	1607	}
1388	}	1608	}
1389		1609
		1610	#ifdef __cplusplus
		1611	}
		1612	#endif
		1613

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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 1.90 by root, Sun Nov 11 00:05:59 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 1.90 by root, Sun Nov 11 00:05:59 2007 UTC