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

Comparing libev/ev.c (file contents):
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs.
Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC

…		…
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_STANDALONE	31	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
		33
		34	# if HAVE_CLOCK_GETTIME
		35	# define EV_USE_MONOTONIC 1
		36	# define EV_USE_REALTIME 1
		37	# endif
		38
		39	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		40	# define EV_USE_SELECT 1
		41	# endif
		42
		43	# if HAVE_POLL && HAVE_POLL_H
		44	# define EV_USE_POLL 1
		45	# endif
		46
		47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		48	# define EV_USE_EPOLL 1
		49	# endif
		50
		51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		52	# define EV_USE_KQUEUE 1
		53	# endif
		54
33	#endif	55	#endif
34		56
35	#include <math.h>	57	#include <math.h>
36	#include <stdlib.h>	58	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	59	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	60	#include <stddef.h>
41		61
42	#include <stdio.h>	62	#include <stdio.h>
43		63
44	#include <assert.h>	64	#include <assert.h>
45	#include <errno.h>	65	#include <errno.h>
46	#include <sys/types.h>	66	#include <sys/types.h>
		67	#include <time.h>
		68
		69	#include <signal.h>
		70
47	#ifndef WIN32	71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
48	# include <sys/wait.h>	74	# include <sys/wait.h>
49	#endif	75	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	76	/**/
54		77
55	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
57	#endif	80	#endif
58		81
59	#ifndef EV_USE_SELECT	82	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	83	# define EV_USE_SELECT 1
61	#endif	84	#endif
62		85
63	#ifndef EV_USEV_POLL	86	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	88	#endif
66		89
67	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
69	#endif	92	#endif
70		93
71	#ifndef EV_USE_KQUEUE	94	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	95	# define EV_USE_KQUEUE 0
		96	#endif
		97
		98	#ifndef EV_USE_WIN32
		99	# ifdef WIN32
		100	# define EV_USE_WIN32 0 /* it does not exist, use select */
		101	# undef EV_USE_SELECT
		102	# define EV_USE_SELECT 1
		103	# else
		104	# define EV_USE_WIN32 0
		105	# endif
73	#endif	106	#endif
74		107
75	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
77	#endif	110	#endif
…		…
115	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
117		150
118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119		152
		153	#include "ev_win32.c"
		154
120	/*****************************************************************************/	155	/*****************************************************************************/
121		156
		157	static void (syserr_cb)(const char msg);
		158
		159	void ev_set_syserr_cb (void (cb)(const char msg))
		160	{
		161	syserr_cb = cb;
		162	}
		163
		164	static void
		165	syserr (const char *msg)
		166	{
		167	if (!msg)
		168	msg = "(libev) system error";
		169
		170	if (syserr_cb)
		171	syserr_cb (msg);
		172	else
		173	{
		174	perror (msg);
		175	abort ();
		176	}
		177	}
		178
		179	static void (alloc)(void *ptr, long size);
		180
		181	void ev_set_allocator (void (cb)(void *ptr, long size))
		182	{
		183	alloc = cb;
		184	}
		185
		186	static void *
		187	ev_realloc (void *ptr, long size)
		188	{
		189	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		190
		191	if (!ptr && size)
		192	{
		193	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		194	abort ();
		195	}
		196
		197	return ptr;
		198	}
		199
		200	#define ev_malloc(size) ev_realloc (0, (size))
		201	#define ev_free(ptr) ev_realloc ((ptr), 0)
		202
		203	/*****************************************************************************/
		204
122	typedef struct	205	typedef struct
123	{	206	{
124	struct ev_watcher_list *head;	207	WL head;
125	unsigned char events;	208	unsigned char events;
126	unsigned char reify;	209	unsigned char reify;
127	} ANFD;	210	} ANFD;
128		211
129	typedef struct	212	typedef struct
130	{	213	{
131	W w;	214	W w;
132	int events;	215	int events;
133	} ANPENDING;	216	} ANPENDING;
134		217
135	#ifdef EV_MULTIPLICITY	218	#if EV_MULTIPLICITY
136		219
137	struct ev_loop	220	struct ev_loop
138	{	221	{
139	# define VAR(name,decl) decl;	222	# define VAR(name,decl) decl;
140	# include "ev_vars.h"	223	# include "ev_vars.h"
…		…
185	ev_now (EV_P)	268	ev_now (EV_P)
186	{	269	{
187	return rt_now;	270	return rt_now;
188	}	271	}
189		272
190	#define array_roundsize(base,n) ((n) \| 4 & ~3)	273	#define array_roundsize(type,n) ((n) \| 4 & ~3)
191		274
192	#define array_needsize(base,cur,cnt,init) \	275	#define array_needsize(type,base,cur,cnt,init) \
193	if (expect_false ((cnt) > cur)) \	276	if (expect_false ((cnt) > cur)) \
194	{ \	277	{ \
195	int newcnt = cur; \	278	int newcnt = cur; \
196	do \	279	do \
197	{ \	280	{ \
198	newcnt = array_roundsize (base, newcnt << 1); \	281	newcnt = array_roundsize (type, newcnt << 1); \
199	} \	282	} \
200	while ((cnt) > newcnt); \	283	while ((cnt) > newcnt); \
201	\	284	\
202	base = realloc (base, sizeof (base) (newcnt)); \	285	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
203	init (base + cur, newcnt - cur); \	286	init (base + cur, newcnt - cur); \
204	cur = newcnt; \	287	cur = newcnt; \
205	}	288	}
		289
		290	#define array_slim(type,stem) \
		291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		292	{ \
		293	stem ## max = array_roundsize (stem ## cnt >> 1); \
		294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		296	}
		297
		298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		300	#define array_free_microshit(stem) \
		301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		302
		303	#define array_free(stem, idx) \
		304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
206		305
207	/*****************************************************************************/	306	/*****************************************************************************/
208		307
209	static void	308	static void
210	anfds_init (ANFD *base, int count)	309	anfds_init (ANFD *base, int count)
…		…
217		316
218	++base;	317	++base;
219	}	318	}
220	}	319	}
221		320
222	static void	321	void
223	event (EV_P_ W w, int events)	322	ev_feed_event (EV_P_ void *w, int revents)
224	{	323	{
		324	W w_ = (W)w;
		325
225	if (w->pending)	326	if (w_->pending)
226	{	327	{
227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	328	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
228	return;	329	return;
229	}	330	}
230		331
231	w->pending = ++pendingcnt [ABSPRI (w)];	332	w_->pending = ++pendingcnt [ABSPRI (w_)];
232	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	333	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
233	pendings [ABSPRI (w)][w->pending - 1].w = w;	334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234	pendings [ABSPRI (w)][w->pending - 1].events = events;	335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235	}	336	}
236		337
237	static void	338	static void
238	queue_events (EV_P_ W *events, int eventcnt, int type)	339	queue_events (EV_P_ W *events, int eventcnt, int type)
239	{	340	{
240	int i;	341	int i;
241		342
242	for (i = 0; i < eventcnt; ++i)	343	for (i = 0; i < eventcnt; ++i)
243	event (EV_A_ events [i], type);	344	ev_feed_event (EV_A_ events [i], type);
244	}	345	}
245		346
246	static void	347	static void
247	fd_event (EV_P_ int fd, int events)	348	fd_event (EV_P_ int fd, int events)
248	{	349	{
…		…
252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	353	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
253	{	354	{
254	int ev = w->events & events;	355	int ev = w->events & events;
255		356
256	if (ev)	357	if (ev)
257	event (EV_A_ (W)w, ev);	358	ev_feed_event (EV_A_ (W)w, ev);
258	}	359	}
259	}	360	}
260		361
261	/*****************************************************************************/	362	/*****************************************************************************/
262		363
…		…
276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
277	events \|= w->events;	378	events \|= w->events;
278		379
279	anfd->reify = 0;	380	anfd->reify = 0;
280		381
281	if (anfd->events != events)
282	{
283	method_modify (EV_A_ fd, anfd->events, events);	382	method_modify (EV_A_ fd, anfd->events, events);
284	anfd->events = events;	383	anfd->events = events;
285	}
286	}	384	}
287		385
288	fdchangecnt = 0;	386	fdchangecnt = 0;
289	}	387	}
290		388
291	static void	389	static void
292	fd_change (EV_P_ int fd)	390	fd_change (EV_P_ int fd)
293	{	391	{
294	if (anfds [fd].reify \|\| fdchangecnt < 0)	392	if (anfds [fd].reify)
295	return;	393	return;
296		394
297	anfds [fd].reify = 1;	395	anfds [fd].reify = 1;
298		396
299	++fdchangecnt;	397	++fdchangecnt;
300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	398	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
301	fdchanges [fdchangecnt - 1] = fd;	399	fdchanges [fdchangecnt - 1] = fd;
302	}	400	}
303		401
304	static void	402	static void
305	fd_kill (EV_P_ int fd)	403	fd_kill (EV_P_ int fd)
…		…
307	struct ev_io *w;	405	struct ev_io *w;
308		406
309	while ((w = (struct ev_io *)anfds [fd].head))	407	while ((w = (struct ev_io *)anfds [fd].head))
310	{	408	{
311	ev_io_stop (EV_A_ w);	409	ev_io_stop (EV_A_ w);
312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	410	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
313	}	411	}
		412	}
		413
		414	static int
		415	fd_valid (int fd)
		416	{
		417	#ifdef WIN32
		418	return !!win32_get_osfhandle (fd);
		419	#else
		420	return fcntl (fd, F_GETFD) != -1;
		421	#endif
314	}	422	}
315		423
316	/* called on EBADF to verify fds */	424	/* called on EBADF to verify fds */
317	static void	425	static void
318	fd_ebadf (EV_P)	426	fd_ebadf (EV_P)
319	{	427	{
320	int fd;	428	int fd;
321		429
322	for (fd = 0; fd < anfdmax; ++fd)	430	for (fd = 0; fd < anfdmax; ++fd)
323	if (anfds [fd].events)	431	if (anfds [fd].events)
324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	432	if (!fd_valid (fd) == -1 && errno == EBADF)
325	fd_kill (EV_A_ fd);	433	fd_kill (EV_A_ fd);
326	}	434	}
327		435
328	/* called on ENOMEM in select/poll to kill some fds and retry */	436	/* called on ENOMEM in select/poll to kill some fds and retry */
329	static void	437	static void
330	fd_enomem (EV_P)	438	fd_enomem (EV_P)
331	{	439	{
332	int fd = anfdmax;	440	int fd;
333		441
334	while (fd--)	442	for (fd = anfdmax; fd--; )
335	if (anfds [fd].events)	443	if (anfds [fd].events)
336	{	444	{
337	close (fd);
338	fd_kill (EV_A_ fd);	445	fd_kill (EV_A_ fd);
339	return;	446	return;
340	}	447	}
341	}	448	}
342		449
		450	/* usually called after fork if method needs to re-arm all fds from scratch */
		451	static void
		452	fd_rearm_all (EV_P)
		453	{
		454	int fd;
		455
		456	/* this should be highly optimised to not do anything but set a flag */
		457	for (fd = 0; fd < anfdmax; ++fd)
		458	if (anfds [fd].events)
		459	{
		460	anfds [fd].events = 0;
		461	fd_change (EV_A_ fd);
		462	}
		463	}
		464
343	/*****************************************************************************/	465	/*****************************************************************************/
344		466
345	static void	467	static void
346	upheap (WT *heap, int k)	468	upheap (WT *heap, int k)
347	{	469	{
348	WT w = heap [k];	470	WT w = heap [k];
349		471
350	while (k && heap [k >> 1]->at > w->at)	472	while (k && heap [k >> 1]->at > w->at)
351	{	473	{
352	heap [k] = heap [k >> 1];	474	heap [k] = heap [k >> 1];
353	heap [k]->active = k + 1;	475	((W)heap [k])->active = k + 1;
354	k >>= 1;	476	k >>= 1;
355	}	477	}
356		478
357	heap [k] = w;	479	heap [k] = w;
358	heap [k]->active = k + 1;	480	((W)heap [k])->active = k + 1;
359		481
360	}	482	}
361		483
362	static void	484	static void
363	downheap (WT *heap, int N, int k)	485	downheap (WT *heap, int N, int k)
…		…
373		495
374	if (w->at <= heap [j]->at)	496	if (w->at <= heap [j]->at)
375	break;	497	break;
376		498
377	heap [k] = heap [j];	499	heap [k] = heap [j];
378	heap [k]->active = k + 1;	500	((W)heap [k])->active = k + 1;
379	k = j;	501	k = j;
380	}	502	}
381		503
382	heap [k] = w;	504	heap [k] = w;
383	heap [k]->active = k + 1;	505	((W)heap [k])->active = k + 1;
384	}	506	}
385		507
386	/*****************************************************************************/	508	/*****************************************************************************/
387		509
388	typedef struct	510	typedef struct
389	{	511	{
390	struct ev_watcher_list *head;	512	WL head;
391	sig_atomic_t volatile gotsig;	513	sig_atomic_t volatile gotsig;
392	} ANSIG;	514	} ANSIG;
393		515
394	static ANSIG *signals;	516	static ANSIG *signals;
395	static int signalmax;	517	static int signalmax;
396		518
397	static int sigpipe [2];	519	static int sigpipe [2];
398	static sig_atomic_t volatile gotsig;	520	static sig_atomic_t volatile gotsig;
		521	static struct ev_io sigev;
399		522
400	static void	523	static void
401	signals_init (ANSIG *base, int count)	524	signals_init (ANSIG *base, int count)
402	{	525	{
403	while (count--)	526	while (count--)
…		…
410	}	533	}
411		534
412	static void	535	static void
413	sighandler (int signum)	536	sighandler (int signum)
414	{	537	{
		538	#if WIN32
		539	signal (signum, sighandler);
		540	#endif
		541
415	signals [signum - 1].gotsig = 1;	542	signals [signum - 1].gotsig = 1;
416		543
417	if (!gotsig)	544	if (!gotsig)
418	{	545	{
419	int old_errno = errno;	546	int old_errno = errno;
420	gotsig = 1;	547	gotsig = 1;
		548	#ifdef WIN32
		549	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		550	#else
421	write (sigpipe [1], &signum, 1);	551	write (sigpipe [1], &signum, 1);
		552	#endif
422	errno = old_errno;	553	errno = old_errno;
423	}	554	}
424	}	555	}
425		556
426	static void	557	static void
427	sigcb (EV_P_ struct ev_io *iow, int revents)	558	sigcb (EV_P_ struct ev_io *iow, int revents)
428	{	559	{
429	struct ev_watcher_list *w;	560	WL w;
430	int signum;	561	int signum;
431		562
		563	#ifdef WIN32
		564	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		565	#else
432	read (sigpipe [0], &revents, 1);	566	read (sigpipe [0], &revents, 1);
		567	#endif
433	gotsig = 0;	568	gotsig = 0;
434		569
435	for (signum = signalmax; signum--; )	570	for (signum = signalmax; signum--; )
436	if (signals [signum].gotsig)	571	if (signals [signum].gotsig)
437	{	572	{
438	signals [signum].gotsig = 0;	573	signals [signum].gotsig = 0;
439		574
440	for (w = signals [signum].head; w; w = w->next)	575	for (w = signals [signum].head; w; w = w->next)
441	event (EV_A_ (W)w, EV_SIGNAL);	576	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
442	}	577	}
443	}	578	}
444		579
445	static void	580	static void
446	siginit (EV_P)	581	siginit (EV_P)
…		…
459	ev_unref (EV_A); /* child watcher should not keep loop alive */	594	ev_unref (EV_A); /* child watcher should not keep loop alive */
460	}	595	}
461		596
462	/*****************************************************************************/	597	/*****************************************************************************/
463		598
		599	static struct ev_child *childs [PID_HASHSIZE];
		600
464	#ifndef WIN32	601	#ifndef WIN32
		602
		603	static struct ev_signal childev;
465		604
466	#ifndef WCONTINUED	605	#ifndef WCONTINUED
467	# define WCONTINUED 0	606	# define WCONTINUED 0
468	#endif	607	#endif
469		608
…		…
473	struct ev_child *w;	612	struct ev_child *w;
474		613
475	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	614	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
476	if (w->pid == pid \|\| !w->pid)	615	if (w->pid == pid \|\| !w->pid)
477	{	616	{
478	w->priority = sw->priority; /* need to do it now */	617	ev_priority (w) = ev_priority (sw); /* need to do it now */
479	w->rpid = pid;	618	w->rpid = pid;
480	w->rstatus = status;	619	w->rstatus = status;
481	event (EV_A_ (W)w, EV_CHILD);	620	ev_feed_event (EV_A_ (W)w, EV_CHILD);
482	}	621	}
483	}	622	}
484		623
485	static void	624	static void
486	childcb (EV_P_ struct ev_signal *sw, int revents)	625	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
488	int pid, status;	627	int pid, status;
489		628
490	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	629	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
491	{	630	{
492	/* make sure we are called again until all childs have been reaped */	631	/* make sure we are called again until all childs have been reaped */
493	event (EV_A_ (W)sw, EV_SIGNAL);	632	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
494		633
495	child_reap (EV_A_ sw, pid, pid, status);	634	child_reap (EV_A_ sw, pid, pid, status);
496	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	635	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
497	}	636	}
498	}	637	}
…		…
505	# include "ev_kqueue.c"	644	# include "ev_kqueue.c"
506	#endif	645	#endif
507	#if EV_USE_EPOLL	646	#if EV_USE_EPOLL
508	# include "ev_epoll.c"	647	# include "ev_epoll.c"
509	#endif	648	#endif
510	#if EV_USEV_POLL	649	#if EV_USE_POLL
511	# include "ev_poll.c"	650	# include "ev_poll.c"
512	#endif	651	#endif
513	#if EV_USE_SELECT	652	#if EV_USE_SELECT
514	# include "ev_select.c"	653	# include "ev_select.c"
515	#endif	654	#endif
…		…
560	rt_now = ev_time ();	699	rt_now = ev_time ();
561	mn_now = get_clock ();	700	mn_now = get_clock ();
562	now_floor = mn_now;	701	now_floor = mn_now;
563	rtmn_diff = rt_now - mn_now;	702	rtmn_diff = rt_now - mn_now;
564		703
565	if (pipe (sigpipe))
566	return 0;
567
568	if (methods == EVMETHOD_AUTO)	704	if (methods == EVMETHOD_AUTO)
569	if (!enable_secure () && getenv ("LIBmethodS"))	705	if (!enable_secure () && getenv ("LIBEV_METHODS"))
570	methods = atoi (getenv ("LIBmethodS"));	706	methods = atoi (getenv ("LIBEV_METHODS"));
571	else	707	else
572	methods = EVMETHOD_ANY;	708	methods = EVMETHOD_ANY;
573		709
574	method = 0;	710	method = 0;
		711	#if EV_USE_WIN32
		712	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		713	#endif
575	#if EV_USE_KQUEUE	714	#if EV_USE_KQUEUE
576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	715	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
577	#endif	716	#endif
578	#if EV_USE_EPOLL	717	#if EV_USE_EPOLL
579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	718	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
580	#endif	719	#endif
581	#if EV_USEV_POLL	720	#if EV_USE_POLL
582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	721	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
583	#endif	722	#endif
584	#if EV_USE_SELECT	723	#if EV_USE_SELECT
585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	724	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
586	#endif	725	#endif
587		726
		727	ev_watcher_init (&sigev, sigcb);
		728	ev_set_priority (&sigev, EV_MAXPRI);
		729	}
		730	}
		731
		732	void
		733	loop_destroy (EV_P)
		734	{
		735	int i;
		736
		737	#if EV_USE_WIN32
		738	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		739	#endif
		740	#if EV_USE_KQUEUE
		741	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		742	#endif
		743	#if EV_USE_EPOLL
		744	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		745	#endif
		746	#if EV_USE_POLL
		747	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		748	#endif
		749	#if EV_USE_SELECT
		750	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		751	#endif
		752
		753	for (i = NUMPRI; i--; )
		754	array_free (pending, [i]);
		755
		756	/* have to use the microsoft-never-gets-it-right macro */
		757	array_free_microshit (fdchange);
		758	array_free_microshit (timer);
		759	array_free_microshit (periodic);
		760	array_free_microshit (idle);
		761	array_free_microshit (prepare);
		762	array_free_microshit (check);
		763
		764	method = 0;
		765	}
		766
		767	static void
		768	loop_fork (EV_P)
		769	{
		770	#if EV_USE_EPOLL
		771	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		772	#endif
		773	#if EV_USE_KQUEUE
		774	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		775	#endif
		776
		777	if (ev_is_active (&sigev))
		778	{
		779	/* default loop */
		780
		781	ev_ref (EV_A);
		782	ev_io_stop (EV_A_ &sigev);
		783	close (sigpipe [0]);
		784	close (sigpipe [1]);
		785
		786	while (pipe (sigpipe))
		787	syserr ("(libev) error creating pipe");
		788
		789	siginit (EV_A);
		790	}
		791
		792	postfork = 0;
		793	}
		794
		795	#if EV_MULTIPLICITY
		796	struct ev_loop *
		797	ev_loop_new (int methods)
		798	{
		799	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		800
		801	memset (loop, 0, sizeof (struct ev_loop));
		802
		803	loop_init (EV_A_ methods);
		804
		805	if (ev_method (EV_A))
		806	return loop;
		807
		808	return 0;
		809	}
		810
		811	void
		812	ev_loop_destroy (EV_P)
		813	{
		814	loop_destroy (EV_A);
		815	ev_free (loop);
		816	}
		817
		818	void
		819	ev_loop_fork (EV_P)
		820	{
		821	postfork = 1;
		822	}
		823
		824	#endif
		825
		826	#if EV_MULTIPLICITY
		827	struct ev_loop default_loop_struct;
		828	static struct ev_loop *default_loop;
		829
		830	struct ev_loop *
		831	#else
		832	static int default_loop;
		833
		834	int
		835	#endif
		836	ev_default_loop (int methods)
		837	{
		838	if (sigpipe [0] == sigpipe [1])
		839	if (pipe (sigpipe))
		840	return 0;
		841
		842	if (!default_loop)
		843	{
		844	#if EV_MULTIPLICITY
		845	struct ev_loop *loop = default_loop = &default_loop_struct;
		846	#else
		847	default_loop = 1;
		848	#endif
		849
		850	loop_init (EV_A_ methods);
		851
588	if (method)	852	if (ev_method (EV_A))
589	{	853	{
590	ev_watcher_init (&sigev, sigcb);
591	ev_set_priority (&sigev, EV_MAXPRI);
592	siginit (EV_A);	854	siginit (EV_A);
593		855
594	#ifndef WIN32	856	#ifndef WIN32
595	ev_signal_init (&childev, childcb, SIGCHLD);	857	ev_signal_init (&childev, childcb, SIGCHLD);
596	ev_set_priority (&childev, EV_MAXPRI);	858	ev_set_priority (&childev, EV_MAXPRI);
597	ev_signal_start (EV_A_ &childev);	859	ev_signal_start (EV_A_ &childev);
598	ev_unref (EV_A); /* child watcher should not keep loop alive */	860	ev_unref (EV_A); /* child watcher should not keep loop alive */
599	#endif	861	#endif
600	}	862	}
		863	else
		864	default_loop = 0;
601	}	865	}
602		866
603	return method;	867	return default_loop;
604	}	868	}
605		869
		870	void
		871	ev_default_destroy (void)
		872	{
606	#ifdef EV_MULTIPLICITY	873	#if EV_MULTIPLICITY
607		874	struct ev_loop *loop = default_loop;
608	struct ev_loop *
609	ev_loop_new (int methods)
610	{
611	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));
612
613	loop_init (EV_A_ methods);
614
615	return loop;
616	}
617
618	void
619	ev_loop_delete (EV_P)
620	{
621	/TODO/
622	free (loop);
623	}
624
625	#else
626
627	int
628	ev_init (int methods)
629	{
630	loop_init ();
631	}
632
633	#endif	875	#endif
		876
		877	#ifndef WIN32
		878	ev_ref (EV_A); /* child watcher */
		879	ev_signal_stop (EV_A_ &childev);
		880	#endif
		881
		882	ev_ref (EV_A); /* signal watcher */
		883	ev_io_stop (EV_A_ &sigev);
		884
		885	close (sigpipe [0]); sigpipe [0] = 0;
		886	close (sigpipe [1]); sigpipe [1] = 0;
		887
		888	loop_destroy (EV_A);
		889	}
		890
		891	void
		892	ev_default_fork (void)
		893	{
		894	#if EV_MULTIPLICITY
		895	struct ev_loop *loop = default_loop;
		896	#endif
		897
		898	if (method)
		899	postfork = 1;
		900	}
634		901
635	/*****************************************************************************/	902	/*****************************************************************************/
636		903
637	void	904	static int
638	ev_fork_prepare (void)	905	any_pending (EV_P)
639	{	906	{
640	/* nop */	907	int pri;
641	}
642		908
643	void	909	for (pri = NUMPRI; pri--; )
644	ev_fork_parent (void)	910	if (pendingcnt [pri])
645	{	911	return 1;
646	/* nop */
647	}
648		912
649	void	913	return 0;
650	ev_fork_child (void)
651	{
652	/TODO/
653	#if !EV_MULTIPLICITY
654	#if EV_USE_EPOLL
655	if (method == EVMETHOD_EPOLL)
656	epoll_postfork_child (EV_A);
657	#endif
658
659	ev_io_stop (EV_A_ &sigev);
660	close (sigpipe [0]);
661	close (sigpipe [1]);
662	pipe (sigpipe);
663	siginit (EV_A);
664	#endif
665	}	914	}
666
667	/*****************************************************************************/
668		915
669	static void	916	static void
670	call_pending (EV_P)	917	call_pending (EV_P)
671	{	918	{
672	int pri;	919	int pri;
…		…
685	}	932	}
686		933
687	static void	934	static void
688	timers_reify (EV_P)	935	timers_reify (EV_P)
689	{	936	{
690	while (timercnt && timers [0]->at <= mn_now)	937	while (timercnt && ((WT)timers [0])->at <= mn_now)
691	{	938	{
692	struct ev_timer *w = timers [0];	939	struct ev_timer *w = timers [0];
		940
		941	assert (("inactive timer on timer heap detected", ev_is_active (w)));
693		942
694	/* first reschedule or stop timer */	943	/* first reschedule or stop timer */
695	if (w->repeat)	944	if (w->repeat)
696	{	945	{
697	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	946	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
698	w->at = mn_now + w->repeat;	947	((WT)w)->at = mn_now + w->repeat;
699	downheap ((WT *)timers, timercnt, 0);	948	downheap ((WT *)timers, timercnt, 0);
700	}	949	}
701	else	950	else
702	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	951	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
703		952
704	event (EV_A_ (W)w, EV_TIMEOUT);	953	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
705	}	954	}
706	}	955	}
707		956
708	static void	957	static void
709	periodics_reify (EV_P)	958	periodics_reify (EV_P)
710	{	959	{
711	while (periodiccnt && periodics [0]->at <= rt_now)	960	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
712	{	961	{
713	struct ev_periodic *w = periodics [0];	962	struct ev_periodic *w = periodics [0];
714		963
		964	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		965
715	/* first reschedule or stop timer */	966	/* first reschedule or stop timer */
716	if (w->interval)	967	if (w->reschedule_cb)
717	{	968	{
		969	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		970
		971	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		972	downheap ((WT *)periodics, periodiccnt, 0);
		973	}
		974	else if (w->interval)
		975	{
718	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	976	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
719	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	977	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
720	downheap ((WT *)periodics, periodiccnt, 0);	978	downheap ((WT *)periodics, periodiccnt, 0);
721	}	979	}
722	else	980	else
723	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	981	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
724		982
725	event (EV_A_ (W)w, EV_PERIODIC);	983	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
726	}	984	}
727	}	985	}
728		986
729	static void	987	static void
730	periodics_reschedule (EV_P)	988	periodics_reschedule (EV_P)
…		…
734	/* adjust periodics after time jump */	992	/* adjust periodics after time jump */
735	for (i = 0; i < periodiccnt; ++i)	993	for (i = 0; i < periodiccnt; ++i)
736	{	994	{
737	struct ev_periodic *w = periodics [i];	995	struct ev_periodic *w = periodics [i];
738		996
		997	if (w->reschedule_cb)
		998	((WT)w)->at = w->reschedule_cb (w, rt_now);
739	if (w->interval)	999	else if (w->interval)
740	{
741	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1000	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
742
743	if (fabs (diff) >= 1e-4)
744	{
745	ev_periodic_stop (EV_A_ w);
746	ev_periodic_start (EV_A_ w);
747
748	i = 0; /* restart loop, inefficient, but time jumps should be rare */
749	}
750	}
751	}	1001	}
		1002
		1003	/* now rebuild the heap */
		1004	for (i = periodiccnt >> 1; i--; )
		1005	downheap ((WT *)periodics, periodiccnt, i);
752	}	1006	}
753		1007
754	inline int	1008	inline int
755	time_update_monotonic (EV_P)	1009	time_update_monotonic (EV_P)
756	{	1010	{
…		…
807	{	1061	{
808	periodics_reschedule (EV_A);	1062	periodics_reschedule (EV_A);
809		1063
810	/* adjust timers. this is easy, as the offset is the same for all */	1064	/* adjust timers. this is easy, as the offset is the same for all */
811	for (i = 0; i < timercnt; ++i)	1065	for (i = 0; i < timercnt; ++i)
812	timers [i]->at += rt_now - mn_now;	1066	((WT)timers [i])->at += rt_now - mn_now;
813	}	1067	}
814		1068
815	mn_now = rt_now;	1069	mn_now = rt_now;
816	}	1070	}
817	}	1071	}
…		…
843	{	1097	{
844	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1098	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
845	call_pending (EV_A);	1099	call_pending (EV_A);
846	}	1100	}
847		1101
		1102	/* we might have forked, so reify kernel state if necessary */
		1103	if (expect_false (postfork))
		1104	loop_fork (EV_A);
		1105
848	/* update fd-related kernel structures */	1106	/* update fd-related kernel structures */
849	fd_reify (EV_A);	1107	fd_reify (EV_A);
850		1108
851	/* calculate blocking time */	1109	/* calculate blocking time */
852		1110
853	/* we only need this for !monotonic clockor timers, but as we basically	1111	/* we only need this for !monotonic clock or timers, but as we basically
854	always have timers, we just calculate it always */	1112	always have timers, we just calculate it always */
855	#if EV_USE_MONOTONIC	1113	#if EV_USE_MONOTONIC
856	if (expect_true (have_monotonic))	1114	if (expect_true (have_monotonic))
857	time_update_monotonic (EV_A);	1115	time_update_monotonic (EV_A);
858	else	1116	else
…		…
868	{	1126	{
869	block = MAX_BLOCKTIME;	1127	block = MAX_BLOCKTIME;
870		1128
871	if (timercnt)	1129	if (timercnt)
872	{	1130	{
873	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1131	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
874	if (block > to) block = to;	1132	if (block > to) block = to;
875	}	1133	}
876		1134
877	if (periodiccnt)	1135	if (periodiccnt)
878	{	1136	{
879	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1137	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
880	if (block > to) block = to;	1138	if (block > to) block = to;
881	}	1139	}
882		1140
883	if (block < 0.) block = 0.;	1141	if (block < 0.) block = 0.;
884	}	1142	}
…		…
891	/* queue pending timers and reschedule them */	1149	/* queue pending timers and reschedule them */
892	timers_reify (EV_A); /* relative timers called last */	1150	timers_reify (EV_A); /* relative timers called last */
893	periodics_reify (EV_A); /* absolute timers called first */	1151	periodics_reify (EV_A); /* absolute timers called first */
894		1152
895	/* queue idle watchers unless io or timers are pending */	1153	/* queue idle watchers unless io or timers are pending */
896	if (!pendingcnt)	1154	if (idlecnt && !any_pending (EV_A))
897	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1155	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
898		1156
899	/* queue check watchers, to be executed first */	1157	/* queue check watchers, to be executed first */
900	if (checkcnt)	1158	if (checkcnt)
901	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1159	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
976	return;	1234	return;
977		1235
978	assert (("ev_io_start called with negative fd", fd >= 0));	1236	assert (("ev_io_start called with negative fd", fd >= 0));
979		1237
980	ev_start (EV_A_ (W)w, 1);	1238	ev_start (EV_A_ (W)w, 1);
981	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1239	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
982	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1240	wlist_add ((WL *)&anfds[fd].head, (WL)w);
983		1241
984	fd_change (EV_A_ fd);	1242	fd_change (EV_A_ fd);
985	}	1243	}
986		1244
…		…
1001	ev_timer_start (EV_P_ struct ev_timer *w)	1259	ev_timer_start (EV_P_ struct ev_timer *w)
1002	{	1260	{
1003	if (ev_is_active (w))	1261	if (ev_is_active (w))
1004	return;	1262	return;
1005		1263
1006	w->at += mn_now;	1264	((WT)w)->at += mn_now;
1007		1265
1008	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1266	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1009		1267
1010	ev_start (EV_A_ (W)w, ++timercnt);	1268	ev_start (EV_A_ (W)w, ++timercnt);
1011	array_needsize (timers, timermax, timercnt, );	1269	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1012	timers [timercnt - 1] = w;	1270	timers [timercnt - 1] = w;
1013	upheap ((WT *)timers, timercnt - 1);	1271	upheap ((WT *)timers, timercnt - 1);
		1272
		1273	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1014	}	1274	}
1015		1275
1016	void	1276	void
1017	ev_timer_stop (EV_P_ struct ev_timer *w)	1277	ev_timer_stop (EV_P_ struct ev_timer *w)
1018	{	1278	{
1019	ev_clear_pending (EV_A_ (W)w);	1279	ev_clear_pending (EV_A_ (W)w);
1020	if (!ev_is_active (w))	1280	if (!ev_is_active (w))
1021	return;	1281	return;
1022		1282
		1283	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1284
1023	if (w->active < timercnt--)	1285	if (((W)w)->active < timercnt--)
1024	{	1286	{
1025	timers [w->active - 1] = timers [timercnt];	1287	timers [((W)w)->active - 1] = timers [timercnt];
1026	downheap ((WT *)timers, timercnt, w->active - 1);	1288	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1027	}	1289	}
1028		1290
1029	w->at = w->repeat;	1291	((WT)w)->at = w->repeat;
1030		1292
1031	ev_stop (EV_A_ (W)w);	1293	ev_stop (EV_A_ (W)w);
1032	}	1294	}
1033		1295
1034	void	1296	void
…		…
1036	{	1298	{
1037	if (ev_is_active (w))	1299	if (ev_is_active (w))
1038	{	1300	{
1039	if (w->repeat)	1301	if (w->repeat)
1040	{	1302	{
1041	w->at = mn_now + w->repeat;	1303	((WT)w)->at = mn_now + w->repeat;
1042	downheap ((WT *)timers, timercnt, w->active - 1);	1304	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1043	}	1305	}
1044	else	1306	else
1045	ev_timer_stop (EV_A_ w);	1307	ev_timer_stop (EV_A_ w);
1046	}	1308	}
1047	else if (w->repeat)	1309	else if (w->repeat)
…		…
1052	ev_periodic_start (EV_P_ struct ev_periodic *w)	1314	ev_periodic_start (EV_P_ struct ev_periodic *w)
1053	{	1315	{
1054	if (ev_is_active (w))	1316	if (ev_is_active (w))
1055	return;	1317	return;
1056		1318
		1319	if (w->reschedule_cb)
		1320	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1321	else if (w->interval)
		1322	{
1057	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1323	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1058
1059	/* this formula differs from the one in periodic_reify because we do not always round up */	1324	/* this formula differs from the one in periodic_reify because we do not always round up */
1060	if (w->interval)
1061	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1325	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1326	}
1062		1327
1063	ev_start (EV_A_ (W)w, ++periodiccnt);	1328	ev_start (EV_A_ (W)w, ++periodiccnt);
1064	array_needsize (periodics, periodicmax, periodiccnt, );	1329	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1065	periodics [periodiccnt - 1] = w;	1330	periodics [periodiccnt - 1] = w;
1066	upheap ((WT *)periodics, periodiccnt - 1);	1331	upheap ((WT *)periodics, periodiccnt - 1);
		1332
		1333	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1067	}	1334	}
1068		1335
1069	void	1336	void
1070	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1337	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1071	{	1338	{
1072	ev_clear_pending (EV_A_ (W)w);	1339	ev_clear_pending (EV_A_ (W)w);
1073	if (!ev_is_active (w))	1340	if (!ev_is_active (w))
1074	return;	1341	return;
1075		1342
		1343	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1344
1076	if (w->active < periodiccnt--)	1345	if (((W)w)->active < periodiccnt--)
1077	{	1346	{
1078	periodics [w->active - 1] = periodics [periodiccnt];	1347	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1079	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1348	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1080	}	1349	}
1081		1350
		1351	ev_stop (EV_A_ (W)w);
		1352	}
		1353
		1354	void
		1355	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1356	{
		1357	ev_periodic_stop (EV_A_ w);
		1358	ev_periodic_start (EV_A_ w);
		1359	}
		1360
		1361	void
		1362	ev_idle_start (EV_P_ struct ev_idle *w)
		1363	{
		1364	if (ev_is_active (w))
		1365	return;
		1366
		1367	ev_start (EV_A_ (W)w, ++idlecnt);
		1368	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1369	idles [idlecnt - 1] = w;
		1370	}
		1371
		1372	void
		1373	ev_idle_stop (EV_P_ struct ev_idle *w)
		1374	{
		1375	ev_clear_pending (EV_A_ (W)w);
		1376	if (ev_is_active (w))
		1377	return;
		1378
		1379	idles [((W)w)->active - 1] = idles [--idlecnt];
		1380	ev_stop (EV_A_ (W)w);
		1381	}
		1382
		1383	void
		1384	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1385	{
		1386	if (ev_is_active (w))
		1387	return;
		1388
		1389	ev_start (EV_A_ (W)w, ++preparecnt);
		1390	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1391	prepares [preparecnt - 1] = w;
		1392	}
		1393
		1394	void
		1395	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1396	{
		1397	ev_clear_pending (EV_A_ (W)w);
		1398	if (ev_is_active (w))
		1399	return;
		1400
		1401	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1402	ev_stop (EV_A_ (W)w);
		1403	}
		1404
		1405	void
		1406	ev_check_start (EV_P_ struct ev_check *w)
		1407	{
		1408	if (ev_is_active (w))
		1409	return;
		1410
		1411	ev_start (EV_A_ (W)w, ++checkcnt);
		1412	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1413	checks [checkcnt - 1] = w;
		1414	}
		1415
		1416	void
		1417	ev_check_stop (EV_P_ struct ev_check *w)
		1418	{
		1419	ev_clear_pending (EV_A_ (W)w);
		1420	if (ev_is_active (w))
		1421	return;
		1422
		1423	checks [((W)w)->active - 1] = checks [--checkcnt];
1082	ev_stop (EV_A_ (W)w);	1424	ev_stop (EV_A_ (W)w);
1083	}	1425	}
1084		1426
1085	#ifndef SA_RESTART	1427	#ifndef SA_RESTART
1086	# define SA_RESTART 0	1428	# define SA_RESTART 0
1087	#endif	1429	#endif
1088		1430
1089	void	1431	void
1090	ev_signal_start (EV_P_ struct ev_signal *w)	1432	ev_signal_start (EV_P_ struct ev_signal *w)
1091	{	1433	{
		1434	#if EV_MULTIPLICITY
		1435	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1436	#endif
1092	if (ev_is_active (w))	1437	if (ev_is_active (w))
1093	return;	1438	return;
1094		1439
1095	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1440	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1096		1441
1097	ev_start (EV_A_ (W)w, 1);	1442	ev_start (EV_A_ (W)w, 1);
1098	array_needsize (signals, signalmax, w->signum, signals_init);	1443	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1099	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1444	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1100		1445
1101	if (!w->next)	1446	if (!((WL)w)->next)
1102	{	1447	{
		1448	#if WIN32
		1449	signal (w->signum, sighandler);
		1450	#else
1103	struct sigaction sa;	1451	struct sigaction sa;
1104	sa.sa_handler = sighandler;	1452	sa.sa_handler = sighandler;
1105	sigfillset (&sa.sa_mask);	1453	sigfillset (&sa.sa_mask);
1106	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1454	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1107	sigaction (w->signum, &sa, 0);	1455	sigaction (w->signum, &sa, 0);
		1456	#endif
1108	}	1457	}
1109	}	1458	}
1110		1459
1111	void	1460	void
1112	ev_signal_stop (EV_P_ struct ev_signal *w)	1461	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1121	if (!signals [w->signum - 1].head)	1470	if (!signals [w->signum - 1].head)
1122	signal (w->signum, SIG_DFL);	1471	signal (w->signum, SIG_DFL);
1123	}	1472	}
1124		1473
1125	void	1474	void
1126	ev_idle_start (EV_P_ struct ev_idle *w)
1127	{
1128	if (ev_is_active (w))
1129	return;
1130
1131	ev_start (EV_A_ (W)w, ++idlecnt);
1132	array_needsize (idles, idlemax, idlecnt, );
1133	idles [idlecnt - 1] = w;
1134	}
1135
1136	void
1137	ev_idle_stop (EV_P_ struct ev_idle *w)
1138	{
1139	ev_clear_pending (EV_A_ (W)w);
1140	if (ev_is_active (w))
1141	return;
1142
1143	idles [w->active - 1] = idles [--idlecnt];
1144	ev_stop (EV_A_ (W)w);
1145	}
1146
1147	void
1148	ev_prepare_start (EV_P_ struct ev_prepare *w)
1149	{
1150	if (ev_is_active (w))
1151	return;
1152
1153	ev_start (EV_A_ (W)w, ++preparecnt);
1154	array_needsize (prepares, preparemax, preparecnt, );
1155	prepares [preparecnt - 1] = w;
1156	}
1157
1158	void
1159	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1160	{
1161	ev_clear_pending (EV_A_ (W)w);
1162	if (ev_is_active (w))
1163	return;
1164
1165	prepares [w->active - 1] = prepares [--preparecnt];
1166	ev_stop (EV_A_ (W)w);
1167	}
1168
1169	void
1170	ev_check_start (EV_P_ struct ev_check *w)
1171	{
1172	if (ev_is_active (w))
1173	return;
1174
1175	ev_start (EV_A_ (W)w, ++checkcnt);
1176	array_needsize (checks, checkmax, checkcnt, );
1177	checks [checkcnt - 1] = w;
1178	}
1179
1180	void
1181	ev_check_stop (EV_P_ struct ev_check *w)
1182	{
1183	ev_clear_pending (EV_A_ (W)w);
1184	if (ev_is_active (w))
1185	return;
1186
1187	checks [w->active - 1] = checks [--checkcnt];
1188	ev_stop (EV_A_ (W)w);
1189	}
1190
1191	void
1192	ev_child_start (EV_P_ struct ev_child *w)	1475	ev_child_start (EV_P_ struct ev_child *w)
1193	{	1476	{
		1477	#if EV_MULTIPLICITY
		1478	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1479	#endif
1194	if (ev_is_active (w))	1480	if (ev_is_active (w))
1195	return;	1481	return;
1196		1482
1197	ev_start (EV_A_ (W)w, 1);	1483	ev_start (EV_A_ (W)w, 1);
1198	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1484	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1225	void (cb)(int revents, void arg) = once->cb;	1511	void (cb)(int revents, void arg) = once->cb;
1226	void *arg = once->arg;	1512	void *arg = once->arg;
1227		1513
1228	ev_io_stop (EV_A_ &once->io);	1514	ev_io_stop (EV_A_ &once->io);
1229	ev_timer_stop (EV_A_ &once->to);	1515	ev_timer_stop (EV_A_ &once->to);
1230	free (once);	1516	ev_free (once);
1231		1517
1232	cb (revents, arg);	1518	cb (revents, arg);
1233	}	1519	}
1234		1520
1235	static void	1521	static void
…		…
1245	}	1531	}
1246		1532
1247	void	1533	void
1248	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1534	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1249	{	1535	{
1250	struct ev_once *once = malloc (sizeof (struct ev_once));	1536	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1251		1537
1252	if (!once)	1538	if (!once)
1253	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1539	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1254	else	1540	else
1255	{	1541	{
…		…
1270	ev_timer_start (EV_A_ &once->to);	1556	ev_timer_start (EV_A_ &once->to);
1271	}	1557	}
1272	}	1558	}
1273	}	1559	}
1274		1560
1275	/*****************************************************************************/
1276
1277	#if 0
1278
1279	struct ev_io wio;
1280
1281	static void
1282	sin_cb (struct ev_io *w, int revents)
1283	{
1284	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1285	}
1286
1287	static void
1288	ocb (struct ev_timer *w, int revents)
1289	{
1290	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1291	ev_timer_stop (w);
1292	ev_timer_start (w);
1293	}
1294
1295	static void
1296	scb (struct ev_signal *w, int revents)
1297	{
1298	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1299	ev_io_stop (&wio);
1300	ev_io_start (&wio);
1301	}
1302
1303	static void
1304	gcb (struct ev_signal *w, int revents)
1305	{
1306	fprintf (stderr, "generic %x\n", revents);
1307
1308	}
1309
1310	int main (void)
1311	{
1312	ev_init (0);
1313
1314	ev_io_init (&wio, sin_cb, 0, EV_READ);
1315	ev_io_start (&wio);
1316
1317	struct ev_timer t[10000];
1318
1319	#if 0
1320	int i;
1321	for (i = 0; i < 10000; ++i)
1322	{
1323	struct ev_timer *w = t + i;
1324	ev_watcher_init (w, ocb, i);
1325	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1326	ev_timer_start (w);
1327	if (drand48 () < 0.5)
1328	ev_timer_stop (w);
1329	}
1330	#endif
1331
1332	struct ev_timer t1;
1333	ev_timer_init (&t1, ocb, 5, 10);
1334	ev_timer_start (&t1);
1335
1336	struct ev_signal sig;
1337	ev_signal_init (&sig, scb, SIGQUIT);
1338	ev_signal_start (&sig);
1339
1340	struct ev_check cw;
1341	ev_check_init (&cw, gcb);
1342	ev_check_start (&cw);
1343
1344	struct ev_idle iw;
1345	ev_idle_init (&iw, gcb);
1346	ev_idle_start (&iw);
1347
1348	ev_loop (0);
1349
1350	return 0;
1351	}
1352
1353	#endif
1354
1355
1356
1357

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Comparing libev/ev.c (file contents): Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs. Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs.
Revision 1.78 by root, Thu Nov 8 21:08:56 2007 UTC