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

Comparing libev/ev.c (file contents):
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC vs.
Revision 1.71 by root, Tue Nov 6 13:17:55 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	#ifndef PERL
		70	# include <signal.h>
		71	#endif
		72
47	#ifndef WIN32	73	#ifndef WIN32
		74	# include <unistd.h>
		75	# include <sys/time.h>
48	# include <sys/wait.h>	76	# include <sys/wait.h>
49	#endif	77	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	78	/**/
54		79
55	#ifndef EV_USE_MONOTONIC	80	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	81	# define EV_USE_MONOTONIC 1
57	#endif	82	#endif
58		83
59	#ifndef EV_USE_SELECT	84	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	85	# define EV_USE_SELECT 1
61	#endif	86	#endif
62		87
63	#ifndef EV_USEV_POLL	88	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	89	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
65	#endif	90	#endif
66		91
67	#ifndef EV_USE_EPOLL	92	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	93	# define EV_USE_EPOLL 0
69	#endif	94	#endif
70		95
71	#ifndef EV_USE_KQUEUE	96	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	97	# define EV_USE_KQUEUE 0
		98	#endif
		99
		100	#ifndef EV_USE_WIN32
		101	# ifdef WIN32
		102	# define EV_USE_WIN32 0 /* it does not exist, use select */
		103	# undef EV_USE_SELECT
		104	# define EV_USE_SELECT 1
		105	# else
		106	# define EV_USE_WIN32 0
		107	# endif
73	#endif	108	#endif
74		109
75	#ifndef EV_USE_REALTIME	110	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	111	# define EV_USE_REALTIME 1
77	#endif	112	#endif
…		…
113		148
114	typedef struct ev_watcher *W;	149	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	150	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	151	typedef struct ev_watcher_time *WT;
117		152
118	static ev_tstamp now_floor, mn_now, diff; /* monotonic clock */	153	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119	static ev_tstamp rt_now;
120	static int method;
121		154
122	static int have_monotonic; /* runtime */	155	#if WIN32
123		156	/* note: the comment below could not be substantiated, but what would I care */
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	157	/* MSDN says this is required to handle SIGFPE */
125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);	158	volatile double SIGFPE_REQ = 0.0f;
126	static void (*method_poll)(EV_P_ ev_tstamp timeout);
127
128	static int activecnt; /* number of active events */
129
130	#if EV_USE_SELECT
131	static unsigned char vec_ri, vec_ro, vec_wi, vec_wo;
132	static int vec_max;
133	#endif	159	#endif
134		160
135	#if EV_USEV_POLL	161	/*****************************************************************************/
136	static struct pollfd *polls;
137	static int pollmax, pollcnt;
138	static int pollidxs; / maps fds into structure indices */
139	static int pollidxmax;
140	#endif
141		162
142	#if EV_USE_EPOLL	163	static void (syserr_cb)(const char msg);
143	static int epoll_fd = -1;
144		164
145	static struct epoll_event *events;	165	void ev_set_syserr_cb (void (cb)(const char msg))
146	static int eventmax;	166	{
147	#endif	167	syserr_cb = cb;
		168	}
148		169
149	#if EV_USE_KQUEUE	170	static void
150	static int kqueue_fd;	171	syserr (const char *msg)
151	static struct kevent *kqueue_changes;	172	{
152	static int kqueue_changemax, kqueue_changecnt;	173	if (!msg)
153	static struct kevent *kqueue_events;	174	msg = "(libev) system error";
154	static int kqueue_eventmax;	175
		176	if (syserr_cb)
		177	syserr_cb (msg);
		178	else
		179	{
		180	perror (msg);
		181	abort ();
		182	}
		183	}
		184
		185	static void (alloc)(void *ptr, long size);
		186
		187	void ev_set_allocator (void (cb)(void *ptr, long size))
		188	{
		189	alloc = cb;
		190	}
		191
		192	static void *
		193	ev_realloc (void *ptr, long size)
		194	{
		195	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		196
		197	if (!ptr && size)
		198	{
		199	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		200	abort ();
		201	}
		202
		203	return ptr;
		204	}
		205
		206	#define ev_malloc(size) ev_realloc (0, (size))
		207	#define ev_free(ptr) ev_realloc ((ptr), 0)
		208
		209	/*****************************************************************************/
		210
		211	typedef struct
		212	{
		213	WL head;
		214	unsigned char events;
		215	unsigned char reify;
		216	} ANFD;
		217
		218	typedef struct
		219	{
		220	W w;
		221	int events;
		222	} ANPENDING;
		223
		224	#if EV_MULTIPLICITY
		225
		226	struct ev_loop
		227	{
		228	# define VAR(name,decl) decl;
		229	# include "ev_vars.h"
		230	};
		231	# undef VAR
		232	# include "ev_wrap.h"
		233
		234	#else
		235
		236	# define VAR(name,decl) static decl;
		237	# include "ev_vars.h"
		238	# undef VAR
		239
155	#endif	240	#endif
156		241
157	/*****************************************************************************/	242	/*****************************************************************************/
158		243
159	inline ev_tstamp	244	inline ev_tstamp
…		…
191	return rt_now;	276	return rt_now;
192	}	277	}
193		278
194	#define array_roundsize(base,n) ((n) \| 4 & ~3)	279	#define array_roundsize(base,n) ((n) \| 4 & ~3)
195		280
196	#define array_needsize(base,cur,cnt,init) \	281	#define array_needsize(base,cur,cnt,init) \
197	if (expect_false ((cnt) > cur)) \	282	if (expect_false ((cnt) > cur)) \
198	{ \	283	{ \
199	int newcnt = cur; \	284	int newcnt = cur; \
200	do \	285	do \
201	{ \	286	{ \
202	newcnt = array_roundsize (base, newcnt << 1); \	287	newcnt = array_roundsize (base, newcnt << 1); \
203	} \	288	} \
204	while ((cnt) > newcnt); \	289	while ((cnt) > newcnt); \
205	\	290	\
206	base = realloc (base, sizeof (base) (newcnt)); \	291	base = ev_realloc (base, sizeof (base) (newcnt)); \
207	init (base + cur, newcnt - cur); \	292	init (base + cur, newcnt - cur); \
208	cur = newcnt; \	293	cur = newcnt; \
209	}	294	}
		295
		296	#define array_slim(stem) \
		297	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		298	{ \
		299	stem ## max = array_roundsize (stem ## cnt >> 1); \
		300	base = ev_realloc (base, sizeof (base) (stem ## max)); \
		301	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		302	}
		303
		304	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		305	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		306	#define array_free_microshit(stem) \
		307	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		308
		309	#define array_free(stem, idx) \
		310	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
210		311
211	/*****************************************************************************/	312	/*****************************************************************************/
212
213	typedef struct
214	{
215	struct ev_watcher_list *head;
216	unsigned char events;
217	unsigned char reify;
218	} ANFD;
219
220	static ANFD *anfds;
221	static int anfdmax;
222		313
223	static void	314	static void
224	anfds_init (ANFD *base, int count)	315	anfds_init (ANFD *base, int count)
225	{	316	{
226	while (count--)	317	while (count--)
…		…
231		322
232	++base;	323	++base;
233	}	324	}
234	}	325	}
235		326
236	typedef struct
237	{
238	W w;
239	int events;
240	} ANPENDING;
241
242	static ANPENDING *pendings [NUMPRI];
243	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
244
245	static void	327	static void
246	event (EV_P_ W w, int events)	328	event (EV_P_ W w, int events)
247	{	329	{
248	if (w->pending)	330	if (w->pending)
249	{	331	{
250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	332	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
251	return;	333	return;
252	}	334	}
253		335
254	w->pending = ++pendingcnt [ABSPRI (w)];	336	w->pending = ++pendingcnt [ABSPRI (w)];
255	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	337	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
256	pendings [ABSPRI (w)][w->pending - 1].w = w;	338	pendings [ABSPRI (w)][w->pending - 1].w = w;
257	pendings [ABSPRI (w)][w->pending - 1].events = events;	339	pendings [ABSPRI (w)][w->pending - 1].events = events;
258	}	340	}
259		341
260	static void	342	static void
…		…
280	event (EV_A_ (W)w, ev);	362	event (EV_A_ (W)w, ev);
281	}	363	}
282	}	364	}
283		365
284	/*****************************************************************************/	366	/*****************************************************************************/
285
286	static int *fdchanges;
287	static int fdchangemax, fdchangecnt;
288		367
289	static void	368	static void
290	fd_reify (EV_P)	369	fd_reify (EV_P)
291	{	370	{
292	int i;	371	int i;
…		…
302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	381	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
303	events \|= w->events;	382	events \|= w->events;
304		383
305	anfd->reify = 0;	384	anfd->reify = 0;
306		385
307	if (anfd->events != events)
308	{
309	method_modify (EV_A_ fd, anfd->events, events);	386	method_modify (EV_A_ fd, anfd->events, events);
310	anfd->events = events;	387	anfd->events = events;
311	}
312	}	388	}
313		389
314	fdchangecnt = 0;	390	fdchangecnt = 0;
315	}	391	}
316		392
317	static void	393	static void
318	fd_change (EV_P_ int fd)	394	fd_change (EV_P_ int fd)
319	{	395	{
320	if (anfds [fd].reify \|\| fdchangecnt < 0)	396	if (anfds [fd].reify)
321	return;	397	return;
322		398
323	anfds [fd].reify = 1;	399	anfds [fd].reify = 1;
324		400
325	++fdchangecnt;	401	++fdchangecnt;
326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	402	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));
327	fdchanges [fdchangecnt - 1] = fd;	403	fdchanges [fdchangecnt - 1] = fd;
328	}	404	}
329		405
330	static void	406	static void
331	fd_kill (EV_P_ int fd)	407	fd_kill (EV_P_ int fd)
…		…
337	ev_io_stop (EV_A_ w);	413	ev_io_stop (EV_A_ w);
338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	414	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
339	}	415	}
340	}	416	}
341		417
		418	static int
		419	fd_valid (int fd)
		420	{
		421	#ifdef WIN32
		422	return !!win32_get_osfhandle (fd);
		423	#else
		424	return fcntl (fd, F_GETFD) != -1;
		425	#endif
		426	}
		427
342	/* called on EBADF to verify fds */	428	/* called on EBADF to verify fds */
343	static void	429	static void
344	fd_ebadf (EV_P)	430	fd_ebadf (EV_P)
345	{	431	{
346	int fd;	432	int fd;
347		433
348	for (fd = 0; fd < anfdmax; ++fd)	434	for (fd = 0; fd < anfdmax; ++fd)
349	if (anfds [fd].events)	435	if (anfds [fd].events)
350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	436	if (!fd_valid (fd) == -1 && errno == EBADF)
351	fd_kill (EV_A_ fd);	437	fd_kill (EV_A_ fd);
352	}	438	}
353		439
354	/* called on ENOMEM in select/poll to kill some fds and retry */	440	/* called on ENOMEM in select/poll to kill some fds and retry */
355	static void	441	static void
356	fd_enomem (EV_P)	442	fd_enomem (EV_P)
357	{	443	{
358	int fd = anfdmax;	444	int fd;
359		445
360	while (fd--)	446	for (fd = anfdmax; fd--; )
361	if (anfds [fd].events)	447	if (anfds [fd].events)
362	{	448	{
363	close (fd);
364	fd_kill (EV_A_ fd);	449	fd_kill (EV_A_ fd);
365	return;	450	return;
366	}	451	}
367	}	452	}
368		453
		454	/* usually called after fork if method needs to re-arm all fds from scratch */
		455	static void
		456	fd_rearm_all (EV_P)
		457	{
		458	int fd;
		459
		460	/* this should be highly optimised to not do anything but set a flag */
		461	for (fd = 0; fd < anfdmax; ++fd)
		462	if (anfds [fd].events)
		463	{
		464	anfds [fd].events = 0;
		465	fd_change (EV_A_ fd);
		466	}
		467	}
		468
369	/*****************************************************************************/	469	/*****************************************************************************/
370		470
371	static struct ev_timer **timers;
372	static int timermax, timercnt;
373
374	static struct ev_periodic **periodics;
375	static int periodicmax, periodiccnt;
376
377	static void	471	static void
378	upheap (WT *timers, int k)	472	upheap (WT *heap, int k)
379	{	473	{
380	WT w = timers [k];	474	WT w = heap [k];
381		475
382	while (k && timers [k >> 1]->at > w->at)	476	while (k && heap [k >> 1]->at > w->at)
383	{	477	{
384	timers [k] = timers [k >> 1];	478	heap [k] = heap [k >> 1];
385	timers [k]->active = k + 1;	479	((W)heap [k])->active = k + 1;
386	k >>= 1;	480	k >>= 1;
387	}	481	}
388		482
389	timers [k] = w;	483	heap [k] = w;
390	timers [k]->active = k + 1;	484	((W)heap [k])->active = k + 1;
391		485
392	}	486	}
393		487
394	static void	488	static void
395	downheap (WT *timers, int N, int k)	489	downheap (WT *heap, int N, int k)
396	{	490	{
397	WT w = timers [k];	491	WT w = heap [k];
398		492
399	while (k < (N >> 1))	493	while (k < (N >> 1))
400	{	494	{
401	int j = k << 1;	495	int j = k << 1;
402		496
403	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	497	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
404	++j;	498	++j;
405		499
406	if (w->at <= timers [j]->at)	500	if (w->at <= heap [j]->at)
407	break;	501	break;
408		502
409	timers [k] = timers [j];	503	heap [k] = heap [j];
410	timers [k]->active = k + 1;	504	((W)heap [k])->active = k + 1;
411	k = j;	505	k = j;
412	}	506	}
413		507
414	timers [k] = w;	508	heap [k] = w;
415	timers [k]->active = k + 1;	509	((W)heap [k])->active = k + 1;
416	}	510	}
417		511
418	/*****************************************************************************/	512	/*****************************************************************************/
419		513
420	typedef struct	514	typedef struct
421	{	515	{
422	struct ev_watcher_list *head;	516	WL head;
423	sig_atomic_t volatile gotsig;	517	sig_atomic_t volatile gotsig;
424	} ANSIG;	518	} ANSIG;
425		519
426	static ANSIG *signals;	520	static ANSIG *signals;
427	static int signalmax;	521	static int signalmax;
…		…
443	}	537	}
444		538
445	static void	539	static void
446	sighandler (int signum)	540	sighandler (int signum)
447	{	541	{
		542	#if WIN32
		543	signal (signum, sighandler);
		544	#endif
		545
448	signals [signum - 1].gotsig = 1;	546	signals [signum - 1].gotsig = 1;
449		547
450	if (!gotsig)	548	if (!gotsig)
451	{	549	{
452	int old_errno = errno;	550	int old_errno = errno;
…		…
457	}	555	}
458		556
459	static void	557	static void
460	sigcb (EV_P_ struct ev_io *iow, int revents)	558	sigcb (EV_P_ struct ev_io *iow, int revents)
461	{	559	{
462	struct ev_watcher_list *w;	560	WL w;
463	int signum;	561	int signum;
464		562
465	read (sigpipe [0], &revents, 1);	563	read (sigpipe [0], &revents, 1);
466	gotsig = 0;	564	gotsig = 0;
467		565
…		…
486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	584	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	585	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
488	#endif	586	#endif
489		587
490	ev_io_set (&sigev, sigpipe [0], EV_READ);	588	ev_io_set (&sigev, sigpipe [0], EV_READ);
491	ev_io_start (&sigev);	589	ev_io_start (EV_A_ &sigev);
492	ev_unref (EV_A); /* child watcher should not keep loop alive */	590	ev_unref (EV_A); /* child watcher should not keep loop alive */
493	}	591	}
494		592
495	/*****************************************************************************/	593	/*****************************************************************************/
496		594
497	static struct ev_idle **idles;
498	static int idlemax, idlecnt;
499
500	static struct ev_prepare **prepares;
501	static int preparemax, preparecnt;
502
503	static struct ev_check **checks;
504	static int checkmax, checkcnt;
505
506	/*****************************************************************************/
507
508	static struct ev_child *childs [PID_HASHSIZE];	595	static struct ev_child *childs [PID_HASHSIZE];
		596
		597	#ifndef WIN32
		598
509	static struct ev_signal childev;	599	static struct ev_signal childev;
510
511	#ifndef WIN32
512		600
513	#ifndef WCONTINUED	601	#ifndef WCONTINUED
514	# define WCONTINUED 0	602	# define WCONTINUED 0
515	#endif	603	#endif
516		604
…		…
520	struct ev_child *w;	608	struct ev_child *w;
521		609
522	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	610	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
523	if (w->pid == pid \|\| !w->pid)	611	if (w->pid == pid \|\| !w->pid)
524	{	612	{
525	w->priority = sw->priority; /* need to do it now */	613	ev_priority (w) = ev_priority (sw); /* need to do it now */
526	w->rpid = pid;	614	w->rpid = pid;
527	w->rstatus = status;	615	w->rstatus = status;
528	event (EV_A_ (W)w, EV_CHILD);	616	event (EV_A_ (W)w, EV_CHILD);
529	}	617	}
530	}	618	}
531		619
532	static void	620	static void
…		…
552	# include "ev_kqueue.c"	640	# include "ev_kqueue.c"
553	#endif	641	#endif
554	#if EV_USE_EPOLL	642	#if EV_USE_EPOLL
555	# include "ev_epoll.c"	643	# include "ev_epoll.c"
556	#endif	644	#endif
557	#if EV_USEV_POLL	645	#if EV_USE_POLL
558	# include "ev_poll.c"	646	# include "ev_poll.c"
559	#endif	647	#endif
560	#if EV_USE_SELECT	648	#if EV_USE_SELECT
561	# include "ev_select.c"	649	# include "ev_select.c"
562	#endif	650	#endif
…		…
589	ev_method (EV_P)	677	ev_method (EV_P)
590	{	678	{
591	return method;	679	return method;
592	}	680	}
593		681
594	int	682	static void
595	ev_init (EV_P_ int methods)	683	loop_init (EV_P_ int methods)
596	{	684	{
597	if (!method)	685	if (!method)
598	{	686	{
599	#if EV_USE_MONOTONIC	687	#if EV_USE_MONOTONIC
600	{	688	{
…		…
605	#endif	693	#endif
606		694
607	rt_now = ev_time ();	695	rt_now = ev_time ();
608	mn_now = get_clock ();	696	mn_now = get_clock ();
609	now_floor = mn_now;	697	now_floor = mn_now;
610	diff = rt_now - mn_now;	698	rtmn_diff = rt_now - mn_now;
611
612	if (pipe (sigpipe))
613	return 0;
614		699
615	if (methods == EVMETHOD_AUTO)	700	if (methods == EVMETHOD_AUTO)
616	if (!enable_secure () && getenv ("LIBmethodS"))	701	if (!enable_secure () && getenv ("LIBEV_METHODS"))
617	methods = atoi (getenv ("LIBmethodS"));	702	methods = atoi (getenv ("LIBEV_METHODS"));
618	else	703	else
619	methods = EVMETHOD_ANY;	704	methods = EVMETHOD_ANY;
620		705
621	method = 0;	706	method = 0;
		707	#if EV_USE_WIN32
		708	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		709	#endif
622	#if EV_USE_KQUEUE	710	#if EV_USE_KQUEUE
623	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	711	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
624	#endif	712	#endif
625	#if EV_USE_EPOLL	713	#if EV_USE_EPOLL
626	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	714	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
627	#endif	715	#endif
628	#if EV_USEV_POLL	716	#if EV_USE_POLL
629	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	717	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
630	#endif	718	#endif
631	#if EV_USE_SELECT	719	#if EV_USE_SELECT
632	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	720	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
633	#endif	721	#endif
634		722
		723	ev_watcher_init (&sigev, sigcb);
		724	ev_set_priority (&sigev, EV_MAXPRI);
		725	}
		726	}
		727
		728	void
		729	loop_destroy (EV_P)
		730	{
		731	int i;
		732
		733	#if EV_USE_WIN32
		734	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		735	#endif
		736	#if EV_USE_KQUEUE
		737	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		738	#endif
		739	#if EV_USE_EPOLL
		740	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		741	#endif
		742	#if EV_USE_POLL
		743	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		744	#endif
		745	#if EV_USE_SELECT
		746	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		747	#endif
		748
		749	for (i = NUMPRI; i--; )
		750	array_free (pending, [i]);
		751
		752	/* have to use the microsoft-never-gets-it-right macro */
		753	array_free_microshit (fdchange);
		754	array_free_microshit (timer);
		755	array_free_microshit (periodic);
		756	array_free_microshit (idle);
		757	array_free_microshit (prepare);
		758	array_free_microshit (check);
		759
		760	method = 0;
		761	}
		762
		763	static void
		764	loop_fork (EV_P)
		765	{
		766	#if EV_USE_EPOLL
		767	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		768	#endif
		769	#if EV_USE_KQUEUE
		770	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		771	#endif
		772
		773	if (ev_is_active (&sigev))
		774	{
		775	/* default loop */
		776
		777	ev_ref (EV_A);
		778	ev_io_stop (EV_A_ &sigev);
		779	close (sigpipe [0]);
		780	close (sigpipe [1]);
		781
		782	while (pipe (sigpipe))
		783	syserr ("(libev) error creating pipe");
		784
		785	siginit (EV_A);
		786	}
		787
		788	postfork = 0;
		789	}
		790
		791	#if EV_MULTIPLICITY
		792	struct ev_loop *
		793	ev_loop_new (int methods)
		794	{
		795	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		796
		797	memset (loop, 0, sizeof (struct ev_loop));
		798
		799	loop_init (EV_A_ methods);
		800
		801	if (ev_method (EV_A))
		802	return loop;
		803
		804	return 0;
		805	}
		806
		807	void
		808	ev_loop_destroy (EV_P)
		809	{
		810	loop_destroy (EV_A);
		811	ev_free (loop);
		812	}
		813
		814	void
		815	ev_loop_fork (EV_P)
		816	{
		817	postfork = 1;
		818	}
		819
		820	#endif
		821
		822	#if EV_MULTIPLICITY
		823	struct ev_loop default_loop_struct;
		824	static struct ev_loop *default_loop;
		825
		826	struct ev_loop *
		827	#else
		828	static int default_loop;
		829
		830	int
		831	#endif
		832	ev_default_loop (int methods)
		833	{
		834	if (sigpipe [0] == sigpipe [1])
		835	if (pipe (sigpipe))
		836	return 0;
		837
		838	if (!default_loop)
		839	{
		840	#if EV_MULTIPLICITY
		841	struct ev_loop *loop = default_loop = &default_loop_struct;
		842	#else
		843	default_loop = 1;
		844	#endif
		845
		846	loop_init (EV_A_ methods);
		847
635	if (method)	848	if (ev_method (EV_A))
636	{	849	{
637	ev_watcher_init (&sigev, sigcb);
638	ev_set_priority (&sigev, EV_MAXPRI);
639	siginit (EV_A);	850	siginit (EV_A);
640		851
641	#ifndef WIN32	852	#ifndef WIN32
642	ev_signal_init (&childev, childcb, SIGCHLD);	853	ev_signal_init (&childev, childcb, SIGCHLD);
643	ev_set_priority (&childev, EV_MAXPRI);	854	ev_set_priority (&childev, EV_MAXPRI);
644	ev_signal_start (EV_A_ &childev);	855	ev_signal_start (EV_A_ &childev);
645	ev_unref (EV_A); /* child watcher should not keep loop alive */	856	ev_unref (EV_A); /* child watcher should not keep loop alive */
646	#endif	857	#endif
647	}	858	}
		859	else
		860	default_loop = 0;
648	}	861	}
649		862
650	return method;	863	return default_loop;
651	}	864	}
652		865
653	/*****************************************************************************/
654
655	void	866	void
656	ev_fork_prepare (void)	867	ev_default_destroy (void)
657	{	868	{
658	/* nop */	869	#if EV_MULTIPLICITY
659	}	870	struct ev_loop *loop = default_loop;
660
661	void
662	ev_fork_parent (void)
663	{
664	/* nop */
665	}
666
667	void
668	ev_fork_child (void)
669	{
670	#if EV_USE_EPOLL
671	if (method == EVMETHOD_EPOLL)
672	epoll_postfork_child ();
673	#endif	871	#endif
674		872
		873	#ifndef WIN32
		874	ev_ref (EV_A); /* child watcher */
		875	ev_signal_stop (EV_A_ &childev);
		876	#endif
		877
		878	ev_ref (EV_A); /* signal watcher */
675	ev_io_stop (&sigev);	879	ev_io_stop (EV_A_ &sigev);
676	close (sigpipe [0]);	880
677	close (sigpipe [1]);	881	close (sigpipe [0]); sigpipe [0] = 0;
678	pipe (sigpipe);	882	close (sigpipe [1]); sigpipe [1] = 0;
679	siginit ();	883
		884	loop_destroy (EV_A);
		885	}
		886
		887	void
		888	ev_default_fork (void)
		889	{
		890	#if EV_MULTIPLICITY
		891	struct ev_loop *loop = default_loop;
		892	#endif
		893
		894	if (method)
		895	postfork = 1;
680	}	896	}
681		897
682	/*****************************************************************************/	898	/*****************************************************************************/
683		899
684	static void	900	static void
…		…
700	}	916	}
701		917
702	static void	918	static void
703	timers_reify (EV_P)	919	timers_reify (EV_P)
704	{	920	{
705	while (timercnt && timers [0]->at <= mn_now)	921	while (timercnt && ((WT)timers [0])->at <= mn_now)
706	{	922	{
707	struct ev_timer *w = timers [0];	923	struct ev_timer *w = timers [0];
		924
		925	assert (("inactive timer on timer heap detected", ev_is_active (w)));
708		926
709	/* first reschedule or stop timer */	927	/* first reschedule or stop timer */
710	if (w->repeat)	928	if (w->repeat)
711	{	929	{
712	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	930	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
713	w->at = mn_now + w->repeat;	931	((WT)w)->at = mn_now + w->repeat;
714	downheap ((WT *)timers, timercnt, 0);	932	downheap ((WT *)timers, timercnt, 0);
715	}	933	}
716	else	934	else
717	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	935	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
718		936
719	event ((W)w, EV_TIMEOUT);	937	event (EV_A_ (W)w, EV_TIMEOUT);
720	}	938	}
721	}	939	}
722		940
723	static void	941	static void
724	periodics_reify (EV_P)	942	periodics_reify (EV_P)
725	{	943	{
726	while (periodiccnt && periodics [0]->at <= rt_now)	944	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
727	{	945	{
728	struct ev_periodic *w = periodics [0];	946	struct ev_periodic *w = periodics [0];
		947
		948	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
729		949
730	/* first reschedule or stop timer */	950	/* first reschedule or stop timer */
731	if (w->interval)	951	if (w->interval)
732	{	952	{
733	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	953	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
734	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	954	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
735	downheap ((WT *)periodics, periodiccnt, 0);	955	downheap ((WT *)periodics, periodiccnt, 0);
736	}	956	}
737	else	957	else
738	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	958	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
739		959
740	event (EV_A_ (W)w, EV_PERIODIC);	960	event (EV_A_ (W)w, EV_PERIODIC);
741	}	961	}
742	}	962	}
743		963
744	static void	964	static void
745	periodics_reschedule (EV_P_ ev_tstamp diff)	965	periodics_reschedule (EV_P)
746	{	966	{
747	int i;	967	int i;
748		968
749	/* adjust periodics after time jump */	969	/* adjust periodics after time jump */
750	for (i = 0; i < periodiccnt; ++i)	970	for (i = 0; i < periodiccnt; ++i)
751	{	971	{
752	struct ev_periodic *w = periodics [i];	972	struct ev_periodic *w = periodics [i];
753		973
754	if (w->interval)	974	if (w->interval)
755	{	975	{
756	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	976	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
757		977
758	if (fabs (diff) >= 1e-4)	978	if (fabs (diff) >= 1e-4)
759	{	979	{
760	ev_periodic_stop (EV_A_ w);	980	ev_periodic_stop (EV_A_ w);
761	ev_periodic_start (EV_A_ w);	981	ev_periodic_start (EV_A_ w);
…		…
771	{	991	{
772	mn_now = get_clock ();	992	mn_now = get_clock ();
773		993
774	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	994	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
775	{	995	{
776	rt_now = mn_now + diff;	996	rt_now = rtmn_diff + mn_now;
777	return 0;	997	return 0;
778	}	998	}
779	else	999	else
780	{	1000	{
781	now_floor = mn_now;	1001	now_floor = mn_now;
…		…
792	#if EV_USE_MONOTONIC	1012	#if EV_USE_MONOTONIC
793	if (expect_true (have_monotonic))	1013	if (expect_true (have_monotonic))
794	{	1014	{
795	if (time_update_monotonic (EV_A))	1015	if (time_update_monotonic (EV_A))
796	{	1016	{
797	ev_tstamp odiff = diff;	1017	ev_tstamp odiff = rtmn_diff;
798		1018
799	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1019	for (i = 4; --i; ) /* loop a few times, before making important decisions */
800	{	1020	{
801	diff = rt_now - mn_now;	1021	rtmn_diff = rt_now - mn_now;
802		1022
803	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1023	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
804	return; /* all is well */	1024	return; /* all is well */
805		1025
806	rt_now = ev_time ();	1026	rt_now = ev_time ();
807	mn_now = get_clock ();	1027	mn_now = get_clock ();
808	now_floor = mn_now;	1028	now_floor = mn_now;
809	}	1029	}
810		1030
811	periodics_reschedule (EV_A_ diff - odiff);	1031	periodics_reschedule (EV_A);
812	/* no timer adjustment, as the monotonic clock doesn't jump */	1032	/* no timer adjustment, as the monotonic clock doesn't jump */
		1033	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
813	}	1034	}
814	}	1035	}
815	else	1036	else
816	#endif	1037	#endif
817	{	1038	{
818	rt_now = ev_time ();	1039	rt_now = ev_time ();
819		1040
820	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1041	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
821	{	1042	{
822	periodics_reschedule (EV_A_ rt_now - mn_now);	1043	periodics_reschedule (EV_A);
823		1044
824	/* adjust timers. this is easy, as the offset is the same for all */	1045	/* adjust timers. this is easy, as the offset is the same for all */
825	for (i = 0; i < timercnt; ++i)	1046	for (i = 0; i < timercnt; ++i)
826	timers [i]->at += diff;	1047	((WT)timers [i])->at += rt_now - mn_now;
827	}	1048	}
828		1049
829	mn_now = rt_now;	1050	mn_now = rt_now;
830	}	1051	}
831	}	1052	}
…		…
857	{	1078	{
858	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1079	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
859	call_pending (EV_A);	1080	call_pending (EV_A);
860	}	1081	}
861		1082
		1083	/* we might have forked, so reify kernel state if necessary */
		1084	if (expect_false (postfork))
		1085	loop_fork (EV_A);
		1086
862	/* update fd-related kernel structures */	1087	/* update fd-related kernel structures */
863	fd_reify (EV_A);	1088	fd_reify (EV_A);
864		1089
865	/* calculate blocking time */	1090	/* calculate blocking time */
866		1091
…		…
882	{	1107	{
883	block = MAX_BLOCKTIME;	1108	block = MAX_BLOCKTIME;
884		1109
885	if (timercnt)	1110	if (timercnt)
886	{	1111	{
887	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1112	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
888	if (block > to) block = to;	1113	if (block > to) block = to;
889	}	1114	}
890		1115
891	if (periodiccnt)	1116	if (periodiccnt)
892	{	1117	{
893	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1118	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
894	if (block > to) block = to;	1119	if (block > to) block = to;
895	}	1120	}
896		1121
897	if (block < 0.) block = 0.;	1122	if (block < 0.) block = 0.;
898	}	1123	}
…		…
1015	ev_timer_start (EV_P_ struct ev_timer *w)	1240	ev_timer_start (EV_P_ struct ev_timer *w)
1016	{	1241	{
1017	if (ev_is_active (w))	1242	if (ev_is_active (w))
1018	return;	1243	return;
1019		1244
1020	w->at += mn_now;	1245	((WT)w)->at += mn_now;
1021		1246
1022	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1247	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1023		1248
1024	ev_start (EV_A_ (W)w, ++timercnt);	1249	ev_start (EV_A_ (W)w, ++timercnt);
1025	array_needsize (timers, timermax, timercnt, );	1250	array_needsize (timers, timermax, timercnt, (void));
1026	timers [timercnt - 1] = w;	1251	timers [timercnt - 1] = w;
1027	upheap ((WT *)timers, timercnt - 1);	1252	upheap ((WT *)timers, timercnt - 1);
		1253
		1254	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1028	}	1255	}
1029		1256
1030	void	1257	void
1031	ev_timer_stop (EV_P_ struct ev_timer *w)	1258	ev_timer_stop (EV_P_ struct ev_timer *w)
1032	{	1259	{
1033	ev_clear_pending (EV_A_ (W)w);	1260	ev_clear_pending (EV_A_ (W)w);
1034	if (!ev_is_active (w))	1261	if (!ev_is_active (w))
1035	return;	1262	return;
1036		1263
		1264	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1265
1037	if (w->active < timercnt--)	1266	if (((W)w)->active < timercnt--)
1038	{	1267	{
1039	timers [w->active - 1] = timers [timercnt];	1268	timers [((W)w)->active - 1] = timers [timercnt];
1040	downheap ((WT *)timers, timercnt, w->active - 1);	1269	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1041	}	1270	}
1042		1271
1043	w->at = w->repeat;	1272	((WT)w)->at = w->repeat;
1044		1273
1045	ev_stop (EV_A_ (W)w);	1274	ev_stop (EV_A_ (W)w);
1046	}	1275	}
1047		1276
1048	void	1277	void
…		…
1050	{	1279	{
1051	if (ev_is_active (w))	1280	if (ev_is_active (w))
1052	{	1281	{
1053	if (w->repeat)	1282	if (w->repeat)
1054	{	1283	{
1055	w->at = mn_now + w->repeat;	1284	((WT)w)->at = mn_now + w->repeat;
1056	downheap ((WT *)timers, timercnt, w->active - 1);	1285	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1057	}	1286	}
1058	else	1287	else
1059	ev_timer_stop (EV_A_ w);	1288	ev_timer_stop (EV_A_ w);
1060	}	1289	}
1061	else if (w->repeat)	1290	else if (w->repeat)
…		…
1070		1299
1071	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1300	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1072		1301
1073	/* this formula differs from the one in periodic_reify because we do not always round up */	1302	/* this formula differs from the one in periodic_reify because we do not always round up */
1074	if (w->interval)	1303	if (w->interval)
1075	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1304	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1076		1305
1077	ev_start (EV_A_ (W)w, ++periodiccnt);	1306	ev_start (EV_A_ (W)w, ++periodiccnt);
1078	array_needsize (periodics, periodicmax, periodiccnt, );	1307	array_needsize (periodics, periodicmax, periodiccnt, (void));
1079	periodics [periodiccnt - 1] = w;	1308	periodics [periodiccnt - 1] = w;
1080	upheap ((WT *)periodics, periodiccnt - 1);	1309	upheap ((WT *)periodics, periodiccnt - 1);
		1310
		1311	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1081	}	1312	}
1082		1313
1083	void	1314	void
1084	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1315	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1085	{	1316	{
1086	ev_clear_pending (EV_A_ (W)w);	1317	ev_clear_pending (EV_A_ (W)w);
1087	if (!ev_is_active (w))	1318	if (!ev_is_active (w))
1088	return;	1319	return;
1089		1320
		1321	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1322
1090	if (w->active < periodiccnt--)	1323	if (((W)w)->active < periodiccnt--)
1091	{	1324	{
1092	periodics [w->active - 1] = periodics [periodiccnt];	1325	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1093	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1326	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1094	}	1327	}
1095		1328
		1329	ev_stop (EV_A_ (W)w);
		1330	}
		1331
		1332	void
		1333	ev_idle_start (EV_P_ struct ev_idle *w)
		1334	{
		1335	if (ev_is_active (w))
		1336	return;
		1337
		1338	ev_start (EV_A_ (W)w, ++idlecnt);
		1339	array_needsize (idles, idlemax, idlecnt, (void));
		1340	idles [idlecnt - 1] = w;
		1341	}
		1342
		1343	void
		1344	ev_idle_stop (EV_P_ struct ev_idle *w)
		1345	{
		1346	ev_clear_pending (EV_A_ (W)w);
		1347	if (ev_is_active (w))
		1348	return;
		1349
		1350	idles [((W)w)->active - 1] = idles [--idlecnt];
		1351	ev_stop (EV_A_ (W)w);
		1352	}
		1353
		1354	void
		1355	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1356	{
		1357	if (ev_is_active (w))
		1358	return;
		1359
		1360	ev_start (EV_A_ (W)w, ++preparecnt);
		1361	array_needsize (prepares, preparemax, preparecnt, (void));
		1362	prepares [preparecnt - 1] = w;
		1363	}
		1364
		1365	void
		1366	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1367	{
		1368	ev_clear_pending (EV_A_ (W)w);
		1369	if (ev_is_active (w))
		1370	return;
		1371
		1372	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1373	ev_stop (EV_A_ (W)w);
		1374	}
		1375
		1376	void
		1377	ev_check_start (EV_P_ struct ev_check *w)
		1378	{
		1379	if (ev_is_active (w))
		1380	return;
		1381
		1382	ev_start (EV_A_ (W)w, ++checkcnt);
		1383	array_needsize (checks, checkmax, checkcnt, (void));
		1384	checks [checkcnt - 1] = w;
		1385	}
		1386
		1387	void
		1388	ev_check_stop (EV_P_ struct ev_check *w)
		1389	{
		1390	ev_clear_pending (EV_A_ (W)w);
		1391	if (ev_is_active (w))
		1392	return;
		1393
		1394	checks [((W)w)->active - 1] = checks [--checkcnt];
1096	ev_stop (EV_A_ (W)w);	1395	ev_stop (EV_A_ (W)w);
1097	}	1396	}
1098		1397
1099	#ifndef SA_RESTART	1398	#ifndef SA_RESTART
1100	# define SA_RESTART 0	1399	# define SA_RESTART 0
1101	#endif	1400	#endif
1102		1401
1103	void	1402	void
1104	ev_signal_start (EV_P_ struct ev_signal *w)	1403	ev_signal_start (EV_P_ struct ev_signal *w)
1105	{	1404	{
		1405	#if EV_MULTIPLICITY
		1406	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1407	#endif
1106	if (ev_is_active (w))	1408	if (ev_is_active (w))
1107	return;	1409	return;
1108		1410
1109	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1411	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1110		1412
1111	ev_start (EV_A_ (W)w, 1);	1413	ev_start (EV_A_ (W)w, 1);
1112	array_needsize (signals, signalmax, w->signum, signals_init);	1414	array_needsize (signals, signalmax, w->signum, signals_init);
1113	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1415	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1114		1416
1115	if (!w->next)	1417	if (!((WL)w)->next)
1116	{	1418	{
		1419	#if WIN32
		1420	signal (w->signum, sighandler);
		1421	#else
1117	struct sigaction sa;	1422	struct sigaction sa;
1118	sa.sa_handler = sighandler;	1423	sa.sa_handler = sighandler;
1119	sigfillset (&sa.sa_mask);	1424	sigfillset (&sa.sa_mask);
1120	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1425	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1121	sigaction (w->signum, &sa, 0);	1426	sigaction (w->signum, &sa, 0);
		1427	#endif
1122	}	1428	}
1123	}	1429	}
1124		1430
1125	void	1431	void
1126	ev_signal_stop (EV_P_ struct ev_signal *w)	1432	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1135	if (!signals [w->signum - 1].head)	1441	if (!signals [w->signum - 1].head)
1136	signal (w->signum, SIG_DFL);	1442	signal (w->signum, SIG_DFL);
1137	}	1443	}
1138		1444
1139	void	1445	void
1140	ev_idle_start (EV_P_ struct ev_idle *w)
1141	{
1142	if (ev_is_active (w))
1143	return;
1144
1145	ev_start (EV_A_ (W)w, ++idlecnt);
1146	array_needsize (idles, idlemax, idlecnt, );
1147	idles [idlecnt - 1] = w;
1148	}
1149
1150	void
1151	ev_idle_stop (EV_P_ struct ev_idle *w)
1152	{
1153	ev_clear_pending (EV_A_ (W)w);
1154	if (ev_is_active (w))
1155	return;
1156
1157	idles [w->active - 1] = idles [--idlecnt];
1158	ev_stop (EV_A_ (W)w);
1159	}
1160
1161	void
1162	ev_prepare_start (EV_P_ struct ev_prepare *w)
1163	{
1164	if (ev_is_active (w))
1165	return;
1166
1167	ev_start (EV_A_ (W)w, ++preparecnt);
1168	array_needsize (prepares, preparemax, preparecnt, );
1169	prepares [preparecnt - 1] = w;
1170	}
1171
1172	void
1173	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1174	{
1175	ev_clear_pending (EV_A_ (W)w);
1176	if (ev_is_active (w))
1177	return;
1178
1179	prepares [w->active - 1] = prepares [--preparecnt];
1180	ev_stop (EV_A_ (W)w);
1181	}
1182
1183	void
1184	ev_check_start (EV_P_ struct ev_check *w)
1185	{
1186	if (ev_is_active (w))
1187	return;
1188
1189	ev_start (EV_A_ (W)w, ++checkcnt);
1190	array_needsize (checks, checkmax, checkcnt, );
1191	checks [checkcnt - 1] = w;
1192	}
1193
1194	void
1195	ev_check_stop (EV_P_ struct ev_check *w)
1196	{
1197	ev_clear_pending (EV_A_ (W)w);
1198	if (ev_is_active (w))
1199	return;
1200
1201	checks [w->active - 1] = checks [--checkcnt];
1202	ev_stop (EV_A_ (W)w);
1203	}
1204
1205	void
1206	ev_child_start (EV_P_ struct ev_child *w)	1446	ev_child_start (EV_P_ struct ev_child *w)
1207	{	1447	{
		1448	#if EV_MULTIPLICITY
		1449	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1450	#endif
1208	if (ev_is_active (w))	1451	if (ev_is_active (w))
1209	return;	1452	return;
1210		1453
1211	ev_start (EV_A_ (W)w, 1);	1454	ev_start (EV_A_ (W)w, 1);
1212	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1455	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1239	void (cb)(int revents, void arg) = once->cb;	1482	void (cb)(int revents, void arg) = once->cb;
1240	void *arg = once->arg;	1483	void *arg = once->arg;
1241		1484
1242	ev_io_stop (EV_A_ &once->io);	1485	ev_io_stop (EV_A_ &once->io);
1243	ev_timer_stop (EV_A_ &once->to);	1486	ev_timer_stop (EV_A_ &once->to);
1244	free (once);	1487	ev_free (once);
1245		1488
1246	cb (revents, arg);	1489	cb (revents, arg);
1247	}	1490	}
1248		1491
1249	static void	1492	static void
…		…
1259	}	1502	}
1260		1503
1261	void	1504	void
1262	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1505	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1263	{	1506	{
1264	struct ev_once *once = malloc (sizeof (struct ev_once));	1507	struct ev_once *once = ev_malloc (sizeof (struct ev_once));
1265		1508
1266	if (!once)	1509	if (!once)
1267	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1510	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1268	else	1511	else
1269	{	1512	{
…		…
1284	ev_timer_start (EV_A_ &once->to);	1527	ev_timer_start (EV_A_ &once->to);
1285	}	1528	}
1286	}	1529	}
1287	}	1530	}
1288		1531
1289	/*****************************************************************************/
1290
1291	#if 0
1292
1293	struct ev_io wio;
1294
1295	static void
1296	sin_cb (struct ev_io *w, int revents)
1297	{
1298	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1299	}
1300
1301	static void
1302	ocb (struct ev_timer *w, int revents)
1303	{
1304	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1305	ev_timer_stop (w);
1306	ev_timer_start (w);
1307	}
1308
1309	static void
1310	scb (struct ev_signal *w, int revents)
1311	{
1312	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1313	ev_io_stop (&wio);
1314	ev_io_start (&wio);
1315	}
1316
1317	static void
1318	gcb (struct ev_signal *w, int revents)
1319	{
1320	fprintf (stderr, "generic %x\n", revents);
1321
1322	}
1323
1324	int main (void)
1325	{
1326	ev_init (0);
1327
1328	ev_io_init (&wio, sin_cb, 0, EV_READ);
1329	ev_io_start (&wio);
1330
1331	struct ev_timer t[10000];
1332
1333	#if 0
1334	int i;
1335	for (i = 0; i < 10000; ++i)
1336	{
1337	struct ev_timer *w = t + i;
1338	ev_watcher_init (w, ocb, i);
1339	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1340	ev_timer_start (w);
1341	if (drand48 () < 0.5)
1342	ev_timer_stop (w);
1343	}
1344	#endif
1345
1346	struct ev_timer t1;
1347	ev_timer_init (&t1, ocb, 5, 10);
1348	ev_timer_start (&t1);
1349
1350	struct ev_signal sig;
1351	ev_signal_init (&sig, scb, SIGQUIT);
1352	ev_signal_start (&sig);
1353
1354	struct ev_check cw;
1355	ev_check_init (&cw, gcb);
1356	ev_check_start (&cw);
1357
1358	struct ev_idle iw;
1359	ev_idle_init (&iw, gcb);
1360	ev_idle_start (&iw);
1361
1362	ev_loop (0);
1363
1364	return 0;
1365	}
1366
1367	#endif
1368
1369
1370
1371

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Comparing libev/ev.c (file contents): Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC vs. Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.52 by root, Sat Nov 3 22:10:39 2007 UTC vs.
Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC