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

Comparing libev/ev.c (file contents):
Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs.
Revision 1.75 by root, Tue Nov 6 19:29:20 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
…		…
113		146
114	typedef struct ev_watcher *W;	147	typedef struct ev_watcher *W;
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 ev_tstamp now_floor, mn_now, diff; /* monotonic clock */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119	static ev_tstamp rt_now;
120	static int method;
121		152
122	static int have_monotonic; /* runtime */	153	#include "ev_win32.c"
123		154
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	155	/*****************************************************************************/
125	static void (*method_modify)(EV_P_ int fd, int oev, int nev);
126	static void (*method_poll)(EV_P_ ev_tstamp timeout);
127		156
128	static int activecnt; /* number of active events */	157	static void (syserr_cb)(const char msg);
129		158
130	#if EV_USE_SELECT	159	void ev_set_syserr_cb (void (cb)(const char msg))
131	static unsigned char vec_ri, vec_ro, vec_wi, vec_wo;	160	{
132	static int vec_max;	161	syserr_cb = cb;
133	#endif	162	}
134		163
135	#if EV_USEV_POLL	164	static void
136	static struct pollfd *polls;	165	syserr (const char *msg)
137	static int pollmax, pollcnt;	166	{
138	static int pollidxs; / maps fds into structure indices */	167	if (!msg)
139	static int pollidxmax;	168	msg = "(libev) system error";
140	#endif
141		169
142	#if EV_USE_EPOLL	170	if (syserr_cb)
143	static int epoll_fd = -1;	171	syserr_cb (msg);
		172	else
		173	{
		174	perror (msg);
		175	abort ();
		176	}
		177	}
144		178
145	static struct epoll_event *events;	179	static void (alloc)(void *ptr, long size);
146	static int eventmax;
147	#endif
148		180
149	#if EV_USE_KQUEUE	181	void ev_set_allocator (void (cb)(void *ptr, long size))
150	static int kqueue_fd;	182	{
151	static struct kevent *kqueue_changes;	183	alloc = cb;
152	static int kqueue_changemax, kqueue_changecnt;	184	}
153	static struct kevent *kqueue_events;	185
154	static int kqueue_eventmax;	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
		205	typedef struct
		206	{
		207	WL head;
		208	unsigned char events;
		209	unsigned char reify;
		210	} ANFD;
		211
		212	typedef struct
		213	{
		214	W w;
		215	int events;
		216	} ANPENDING;
		217
		218	#if EV_MULTIPLICITY
		219
		220	struct ev_loop
		221	{
		222	# define VAR(name,decl) decl;
		223	# include "ev_vars.h"
		224	};
		225	# undef VAR
		226	# include "ev_wrap.h"
		227
		228	#else
		229
		230	# define VAR(name,decl) static decl;
		231	# include "ev_vars.h"
		232	# undef VAR
		233
155	#endif	234	#endif
156		235
157	/*****************************************************************************/	236	/*****************************************************************************/
158		237
159	inline ev_tstamp	238	inline ev_tstamp
…		…
189	ev_now (EV_P)	268	ev_now (EV_P)
190	{	269	{
191	return rt_now;	270	return rt_now;
192	}	271	}
193		272
194	#define array_roundsize(base,n) ((n) \| 4 & ~3)	273	#define array_roundsize(type,n) ((n) \| 4 & ~3)
195		274
196	#define array_needsize(base,cur,cnt,init) \	275	#define array_needsize(type,base,cur,cnt,init) \
197	if (expect_false ((cnt) > cur)) \	276	if (expect_false ((cnt) > cur)) \
198	{ \	277	{ \
199	int newcnt = cur; \	278	int newcnt = cur; \
200	do \	279	do \
201	{ \	280	{ \
202	newcnt = array_roundsize (base, newcnt << 1); \	281	newcnt = array_roundsize (type, newcnt << 1); \
203	} \	282	} \
204	while ((cnt) > newcnt); \	283	while ((cnt) > newcnt); \
205	\	284	\
206	base = realloc (base, sizeof (base) (newcnt)); \	285	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
207	init (base + cur, newcnt - cur); \	286	init (base + cur, newcnt - cur); \
208	cur = newcnt; \	287	cur = newcnt; \
209	}	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;
210		305
211	/*****************************************************************************/	306	/*****************************************************************************/
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		307
223	static void	308	static void
224	anfds_init (ANFD *base, int count)	309	anfds_init (ANFD *base, int count)
225	{	310	{
226	while (count--)	311	while (count--)
…		…
231		316
232	++base;	317	++base;
233	}	318	}
234	}	319	}
235		320
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	321	static void
246	event (EV_P_ W w, int events)	322	event (EV_P_ W w, int events)
247	{	323	{
248	if (w->pending)	324	if (w->pending)
249	{	325	{
250	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	326	pendings [ABSPRI (w)][w->pending - 1].events \|= events;
251	return;	327	return;
252	}	328	}
253		329
254	w->pending = ++pendingcnt [ABSPRI (w)];	330	w->pending = ++pendingcnt [ABSPRI (w)];
255	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	331	array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));
256	pendings [ABSPRI (w)][w->pending - 1].w = w;	332	pendings [ABSPRI (w)][w->pending - 1].w = w;
257	pendings [ABSPRI (w)][w->pending - 1].events = events;	333	pendings [ABSPRI (w)][w->pending - 1].events = events;
258	}	334	}
259		335
260	static void	336	static void
…		…
280	event (EV_A_ (W)w, ev);	356	event (EV_A_ (W)w, ev);
281	}	357	}
282	}	358	}
283		359
284	/*****************************************************************************/	360	/*****************************************************************************/
285
286	static int *fdchanges;
287	static int fdchangemax, fdchangecnt;
288		361
289	static void	362	static void
290	fd_reify (EV_P)	363	fd_reify (EV_P)
291	{	364	{
292	int i;	365	int i;
…		…
302	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
303	events \|= w->events;	376	events \|= w->events;
304		377
305	anfd->reify = 0;	378	anfd->reify = 0;
306		379
307	if (anfd->events != events)
308	{
309	method_modify (EV_A_ fd, anfd->events, events);	380	method_modify (EV_A_ fd, anfd->events, events);
310	anfd->events = events;	381	anfd->events = events;
311	}
312	}	382	}
313		383
314	fdchangecnt = 0;	384	fdchangecnt = 0;
315	}	385	}
316		386
317	static void	387	static void
318	fd_change (EV_P_ int fd)	388	fd_change (EV_P_ int fd)
319	{	389	{
320	if (anfds [fd].reify \|\| fdchangecnt < 0)	390	if (anfds [fd].reify)
321	return;	391	return;
322		392
323	anfds [fd].reify = 1;	393	anfds [fd].reify = 1;
324		394
325	++fdchangecnt;	395	++fdchangecnt;
326	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	396	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
327	fdchanges [fdchangecnt - 1] = fd;	397	fdchanges [fdchangecnt - 1] = fd;
328	}	398	}
329		399
330	static void	400	static void
331	fd_kill (EV_P_ int fd)	401	fd_kill (EV_P_ int fd)
…		…
337	ev_io_stop (EV_A_ w);	407	ev_io_stop (EV_A_ w);
338	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	408	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
339	}	409	}
340	}	410	}
341		411
		412	static int
		413	fd_valid (int fd)
		414	{
		415	#ifdef WIN32
		416	return !!win32_get_osfhandle (fd);
		417	#else
		418	return fcntl (fd, F_GETFD) != -1;
		419	#endif
		420	}
		421
342	/* called on EBADF to verify fds */	422	/* called on EBADF to verify fds */
343	static void	423	static void
344	fd_ebadf (EV_P)	424	fd_ebadf (EV_P)
345	{	425	{
346	int fd;	426	int fd;
347		427
348	for (fd = 0; fd < anfdmax; ++fd)	428	for (fd = 0; fd < anfdmax; ++fd)
349	if (anfds [fd].events)	429	if (anfds [fd].events)
350	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	430	if (!fd_valid (fd) == -1 && errno == EBADF)
351	fd_kill (EV_A_ fd);	431	fd_kill (EV_A_ fd);
352	}	432	}
353		433
354	/* called on ENOMEM in select/poll to kill some fds and retry */	434	/* called on ENOMEM in select/poll to kill some fds and retry */
355	static void	435	static void
356	fd_enomem (EV_P)	436	fd_enomem (EV_P)
357	{	437	{
358	int fd = anfdmax;	438	int fd;
359		439
360	while (fd--)	440	for (fd = anfdmax; fd--; )
361	if (anfds [fd].events)	441	if (anfds [fd].events)
362	{	442	{
363	close (fd);
364	fd_kill (EV_A_ fd);	443	fd_kill (EV_A_ fd);
365	return;	444	return;
366	}	445	}
367	}	446	}
368		447
		448	/* usually called after fork if method needs to re-arm all fds from scratch */
		449	static void
		450	fd_rearm_all (EV_P)
		451	{
		452	int fd;
		453
		454	/* this should be highly optimised to not do anything but set a flag */
		455	for (fd = 0; fd < anfdmax; ++fd)
		456	if (anfds [fd].events)
		457	{
		458	anfds [fd].events = 0;
		459	fd_change (EV_A_ fd);
		460	}
		461	}
		462
369	/*****************************************************************************/	463	/*****************************************************************************/
370		464
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	465	static void
378	upheap (WT *timers, int k)	466	upheap (WT *heap, int k)
379	{	467	{
380	WT w = timers [k];	468	WT w = heap [k];
381		469
382	while (k && timers [k >> 1]->at > w->at)	470	while (k && heap [k >> 1]->at > w->at)
383	{	471	{
384	timers [k] = timers [k >> 1];	472	heap [k] = heap [k >> 1];
385	timers [k]->active = k + 1;	473	((W)heap [k])->active = k + 1;
386	k >>= 1;	474	k >>= 1;
387	}	475	}
388		476
389	timers [k] = w;	477	heap [k] = w;
390	timers [k]->active = k + 1;	478	((W)heap [k])->active = k + 1;
391		479
392	}	480	}
393		481
394	static void	482	static void
395	downheap (WT *timers, int N, int k)	483	downheap (WT *heap, int N, int k)
396	{	484	{
397	WT w = timers [k];	485	WT w = heap [k];
398		486
399	while (k < (N >> 1))	487	while (k < (N >> 1))
400	{	488	{
401	int j = k << 1;	489	int j = k << 1;
402		490
403	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	491	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
404	++j;	492	++j;
405		493
406	if (w->at <= timers [j]->at)	494	if (w->at <= heap [j]->at)
407	break;	495	break;
408		496
409	timers [k] = timers [j];	497	heap [k] = heap [j];
410	timers [k]->active = k + 1;	498	((W)heap [k])->active = k + 1;
411	k = j;	499	k = j;
412	}	500	}
413		501
414	timers [k] = w;	502	heap [k] = w;
415	timers [k]->active = k + 1;	503	((W)heap [k])->active = k + 1;
416	}	504	}
417		505
418	/*****************************************************************************/	506	/*****************************************************************************/
419		507
420	typedef struct	508	typedef struct
421	{	509	{
422	struct ev_watcher_list *head;	510	WL head;
423	sig_atomic_t volatile gotsig;	511	sig_atomic_t volatile gotsig;
424	} ANSIG;	512	} ANSIG;
425		513
426	static ANSIG *signals;	514	static ANSIG *signals;
427	static int signalmax;	515	static int signalmax;
…		…
443	}	531	}
444		532
445	static void	533	static void
446	sighandler (int signum)	534	sighandler (int signum)
447	{	535	{
		536	#if WIN32
		537	signal (signum, sighandler);
		538	#endif
		539
448	signals [signum - 1].gotsig = 1;	540	signals [signum - 1].gotsig = 1;
449		541
450	if (!gotsig)	542	if (!gotsig)
451	{	543	{
452	int old_errno = errno;	544	int old_errno = errno;
453	gotsig = 1;	545	gotsig = 1;
		546	#ifdef WIN32
		547	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		548	#else
454	write (sigpipe [1], &signum, 1);	549	write (sigpipe [1], &signum, 1);
		550	#endif
455	errno = old_errno;	551	errno = old_errno;
456	}	552	}
457	}	553	}
458		554
459	static void	555	static void
460	sigcb (EV_P_ struct ev_io *iow, int revents)	556	sigcb (EV_P_ struct ev_io *iow, int revents)
461	{	557	{
462	struct ev_watcher_list *w;	558	WL w;
463	int signum;	559	int signum;
464		560
		561	#ifdef WIN32
		562	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		563	#else
465	read (sigpipe [0], &revents, 1);	564	read (sigpipe [0], &revents, 1);
		565	#endif
466	gotsig = 0;	566	gotsig = 0;
467		567
468	for (signum = signalmax; signum--; )	568	for (signum = signalmax; signum--; )
469	if (signals [signum].gotsig)	569	if (signals [signum].gotsig)
470	{	570	{
…		…
486	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	586	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
487	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	587	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
488	#endif	588	#endif
489		589
490	ev_io_set (&sigev, sigpipe [0], EV_READ);	590	ev_io_set (&sigev, sigpipe [0], EV_READ);
491	ev_io_start (&sigev);	591	ev_io_start (EV_A_ &sigev);
		592	ev_unref (EV_A); /* child watcher should not keep loop alive */
492	}	593	}
493		594
494	/*****************************************************************************/	595	/*****************************************************************************/
495		596
496	static struct ev_idle **idles;
497	static int idlemax, idlecnt;
498
499	static struct ev_prepare **prepares;
500	static int preparemax, preparecnt;
501
502	static struct ev_check **checks;
503	static int checkmax, checkcnt;
504
505	/*****************************************************************************/
506
507	static struct ev_child *childs [PID_HASHSIZE];	597	static struct ev_child *childs [PID_HASHSIZE];
		598
		599	#ifndef WIN32
		600
508	static struct ev_signal childev;	601	static struct ev_signal childev;
509
510	#ifndef WIN32
511		602
512	#ifndef WCONTINUED	603	#ifndef WCONTINUED
513	# define WCONTINUED 0	604	# define WCONTINUED 0
514	#endif	605	#endif
515		606
…		…
519	struct ev_child *w;	610	struct ev_child *w;
520		611
521	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	612	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
522	if (w->pid == pid \|\| !w->pid)	613	if (w->pid == pid \|\| !w->pid)
523	{	614	{
524	w->priority = sw->priority; /* need to do it now */	615	ev_priority (w) = ev_priority (sw); /* need to do it now */
525	w->rpid = pid;	616	w->rpid = pid;
526	w->rstatus = status;	617	w->rstatus = status;
527	event (EV_A_ (W)w, EV_CHILD);	618	event (EV_A_ (W)w, EV_CHILD);
528	}	619	}
529	}	620	}
530		621
531	static void	622	static void
…		…
551	# include "ev_kqueue.c"	642	# include "ev_kqueue.c"
552	#endif	643	#endif
553	#if EV_USE_EPOLL	644	#if EV_USE_EPOLL
554	# include "ev_epoll.c"	645	# include "ev_epoll.c"
555	#endif	646	#endif
556	#if EV_USEV_POLL	647	#if EV_USE_POLL
557	# include "ev_poll.c"	648	# include "ev_poll.c"
558	#endif	649	#endif
559	#if EV_USE_SELECT	650	#if EV_USE_SELECT
560	# include "ev_select.c"	651	# include "ev_select.c"
561	#endif	652	#endif
…		…
588	ev_method (EV_P)	679	ev_method (EV_P)
589	{	680	{
590	return method;	681	return method;
591	}	682	}
592		683
593	int	684	static void
594	ev_init (EV_P_ int methods)	685	loop_init (EV_P_ int methods)
595	{	686	{
596	if (!method)	687	if (!method)
597	{	688	{
598	#if EV_USE_MONOTONIC	689	#if EV_USE_MONOTONIC
599	{	690	{
…		…
604	#endif	695	#endif
605		696
606	rt_now = ev_time ();	697	rt_now = ev_time ();
607	mn_now = get_clock ();	698	mn_now = get_clock ();
608	now_floor = mn_now;	699	now_floor = mn_now;
609	diff = rt_now - mn_now;	700	rtmn_diff = rt_now - mn_now;
610
611	if (pipe (sigpipe))
612	return 0;
613		701
614	if (methods == EVMETHOD_AUTO)	702	if (methods == EVMETHOD_AUTO)
615	if (!enable_secure () && getenv ("LIBmethodS"))	703	if (!enable_secure () && getenv ("LIBEV_METHODS"))
616	methods = atoi (getenv ("LIBmethodS"));	704	methods = atoi (getenv ("LIBEV_METHODS"));
617	else	705	else
618	methods = EVMETHOD_ANY;	706	methods = EVMETHOD_ANY;
619		707
620	method = 0;	708	method = 0;
		709	#if EV_USE_WIN32
		710	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		711	#endif
621	#if EV_USE_KQUEUE	712	#if EV_USE_KQUEUE
622	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	713	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
623	#endif	714	#endif
624	#if EV_USE_EPOLL	715	#if EV_USE_EPOLL
625	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	716	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
626	#endif	717	#endif
627	#if EV_USEV_POLL	718	#if EV_USE_POLL
628	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	719	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
629	#endif	720	#endif
630	#if EV_USE_SELECT	721	#if EV_USE_SELECT
631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	722	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
632	#endif	723	#endif
633		724
		725	ev_watcher_init (&sigev, sigcb);
		726	ev_set_priority (&sigev, EV_MAXPRI);
		727	}
		728	}
		729
		730	void
		731	loop_destroy (EV_P)
		732	{
		733	int i;
		734
		735	#if EV_USE_WIN32
		736	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		737	#endif
		738	#if EV_USE_KQUEUE
		739	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		740	#endif
		741	#if EV_USE_EPOLL
		742	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		743	#endif
		744	#if EV_USE_POLL
		745	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		746	#endif
		747	#if EV_USE_SELECT
		748	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		749	#endif
		750
		751	for (i = NUMPRI; i--; )
		752	array_free (pending, [i]);
		753
		754	/* have to use the microsoft-never-gets-it-right macro */
		755	array_free_microshit (fdchange);
		756	array_free_microshit (timer);
		757	array_free_microshit (periodic);
		758	array_free_microshit (idle);
		759	array_free_microshit (prepare);
		760	array_free_microshit (check);
		761
		762	method = 0;
		763	}
		764
		765	static void
		766	loop_fork (EV_P)
		767	{
		768	#if EV_USE_EPOLL
		769	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		770	#endif
		771	#if EV_USE_KQUEUE
		772	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		773	#endif
		774
		775	if (ev_is_active (&sigev))
		776	{
		777	/* default loop */
		778
		779	ev_ref (EV_A);
		780	ev_io_stop (EV_A_ &sigev);
		781	close (sigpipe [0]);
		782	close (sigpipe [1]);
		783
		784	while (pipe (sigpipe))
		785	syserr ("(libev) error creating pipe");
		786
		787	siginit (EV_A);
		788	}
		789
		790	postfork = 0;
		791	}
		792
		793	#if EV_MULTIPLICITY
		794	struct ev_loop *
		795	ev_loop_new (int methods)
		796	{
		797	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		798
		799	memset (loop, 0, sizeof (struct ev_loop));
		800
		801	loop_init (EV_A_ methods);
		802
		803	if (ev_method (EV_A))
		804	return loop;
		805
		806	return 0;
		807	}
		808
		809	void
		810	ev_loop_destroy (EV_P)
		811	{
		812	loop_destroy (EV_A);
		813	ev_free (loop);
		814	}
		815
		816	void
		817	ev_loop_fork (EV_P)
		818	{
		819	postfork = 1;
		820	}
		821
		822	#endif
		823
		824	#if EV_MULTIPLICITY
		825	struct ev_loop default_loop_struct;
		826	static struct ev_loop *default_loop;
		827
		828	struct ev_loop *
		829	#else
		830	static int default_loop;
		831
		832	int
		833	#endif
		834	ev_default_loop (int methods)
		835	{
		836	if (sigpipe [0] == sigpipe [1])
		837	if (pipe (sigpipe))
		838	return 0;
		839
		840	if (!default_loop)
		841	{
		842	#if EV_MULTIPLICITY
		843	struct ev_loop *loop = default_loop = &default_loop_struct;
		844	#else
		845	default_loop = 1;
		846	#endif
		847
		848	loop_init (EV_A_ methods);
		849
634	if (method)	850	if (ev_method (EV_A))
635	{	851	{
636	ev_watcher_init (&sigev, sigcb);
637	ev_set_priority (&sigev, EV_MAXPRI);
638	siginit (EV_A);	852	siginit (EV_A);
639		853
640	#ifndef WIN32	854	#ifndef WIN32
641	ev_signal_init (&childev, childcb, SIGCHLD);	855	ev_signal_init (&childev, childcb, SIGCHLD);
642	ev_set_priority (&childev, EV_MAXPRI);	856	ev_set_priority (&childev, EV_MAXPRI);
643	ev_signal_start (EV_A_ &childev);	857	ev_signal_start (EV_A_ &childev);
		858	ev_unref (EV_A); /* child watcher should not keep loop alive */
644	#endif	859	#endif
645	}	860	}
		861	else
		862	default_loop = 0;
646	}	863	}
647		864
648	return method;	865	return default_loop;
649	}	866	}
650		867
651	/*****************************************************************************/
652
653	void	868	void
654	ev_fork_prepare (void)	869	ev_default_destroy (void)
655	{	870	{
656	/* nop */	871	#if EV_MULTIPLICITY
657	}	872	struct ev_loop *loop = default_loop;
658
659	void
660	ev_fork_parent (void)
661	{
662	/* nop */
663	}
664
665	void
666	ev_fork_child (void)
667	{
668	#if EV_USE_EPOLL
669	if (method == EVMETHOD_EPOLL)
670	epoll_postfork_child ();
671	#endif	873	#endif
672		874
		875	#ifndef WIN32
		876	ev_ref (EV_A); /* child watcher */
		877	ev_signal_stop (EV_A_ &childev);
		878	#endif
		879
		880	ev_ref (EV_A); /* signal watcher */
673	ev_io_stop (&sigev);	881	ev_io_stop (EV_A_ &sigev);
674	close (sigpipe [0]);	882
675	close (sigpipe [1]);	883	close (sigpipe [0]); sigpipe [0] = 0;
676	pipe (sigpipe);	884	close (sigpipe [1]); sigpipe [1] = 0;
677	siginit ();	885
		886	loop_destroy (EV_A);
		887	}
		888
		889	void
		890	ev_default_fork (void)
		891	{
		892	#if EV_MULTIPLICITY
		893	struct ev_loop *loop = default_loop;
		894	#endif
		895
		896	if (method)
		897	postfork = 1;
678	}	898	}
679		899
680	/*****************************************************************************/	900	/*****************************************************************************/
681		901
682	static void	902	static void
…		…
698	}	918	}
699		919
700	static void	920	static void
701	timers_reify (EV_P)	921	timers_reify (EV_P)
702	{	922	{
703	while (timercnt && timers [0]->at <= mn_now)	923	while (timercnt && ((WT)timers [0])->at <= mn_now)
704	{	924	{
705	struct ev_timer *w = timers [0];	925	struct ev_timer *w = timers [0];
		926
		927	assert (("inactive timer on timer heap detected", ev_is_active (w)));
706		928
707	/* first reschedule or stop timer */	929	/* first reschedule or stop timer */
708	if (w->repeat)	930	if (w->repeat)
709	{	931	{
710	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	932	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
711	w->at = mn_now + w->repeat;	933	((WT)w)->at = mn_now + w->repeat;
712	downheap ((WT *)timers, timercnt, 0);	934	downheap ((WT *)timers, timercnt, 0);
713	}	935	}
714	else	936	else
715	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	937	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
716		938
717	event ((W)w, EV_TIMEOUT);	939	event (EV_A_ (W)w, EV_TIMEOUT);
718	}	940	}
719	}	941	}
720		942
721	static void	943	static void
722	periodics_reify (EV_P)	944	periodics_reify (EV_P)
723	{	945	{
724	while (periodiccnt && periodics [0]->at <= rt_now)	946	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
725	{	947	{
726	struct ev_periodic *w = periodics [0];	948	struct ev_periodic *w = periodics [0];
		949
		950	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
727		951
728	/* first reschedule or stop timer */	952	/* first reschedule or stop timer */
729	if (w->interval)	953	if (w->interval)
730	{	954	{
731	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	955	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
732	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	956	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
733	downheap ((WT *)periodics, periodiccnt, 0);	957	downheap ((WT *)periodics, periodiccnt, 0);
734	}	958	}
735	else	959	else
736	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	960	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
737		961
738	event (EV_A_ (W)w, EV_PERIODIC);	962	event (EV_A_ (W)w, EV_PERIODIC);
739	}	963	}
740	}	964	}
741		965
742	static void	966	static void
743	periodics_reschedule (EV_P_ ev_tstamp diff)	967	periodics_reschedule (EV_P)
744	{	968	{
745	int i;	969	int i;
746		970
747	/* adjust periodics after time jump */	971	/* adjust periodics after time jump */
748	for (i = 0; i < periodiccnt; ++i)	972	for (i = 0; i < periodiccnt; ++i)
749	{	973	{
750	struct ev_periodic *w = periodics [i];	974	struct ev_periodic *w = periodics [i];
751		975
752	if (w->interval)	976	if (w->interval)
753	{	977	{
754	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	978	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
755		979
756	if (fabs (diff) >= 1e-4)	980	if (fabs (diff) >= 1e-4)
757	{	981	{
758	ev_periodic_stop (EV_A_ w);	982	ev_periodic_stop (EV_A_ w);
759	ev_periodic_start (EV_A_ w);	983	ev_periodic_start (EV_A_ w);
…		…
769	{	993	{
770	mn_now = get_clock ();	994	mn_now = get_clock ();
771		995
772	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	996	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
773	{	997	{
774	rt_now = mn_now + diff;	998	rt_now = rtmn_diff + mn_now;
775	return 0;	999	return 0;
776	}	1000	}
777	else	1001	else
778	{	1002	{
779	now_floor = mn_now;	1003	now_floor = mn_now;
…		…
790	#if EV_USE_MONOTONIC	1014	#if EV_USE_MONOTONIC
791	if (expect_true (have_monotonic))	1015	if (expect_true (have_monotonic))
792	{	1016	{
793	if (time_update_monotonic (EV_A))	1017	if (time_update_monotonic (EV_A))
794	{	1018	{
795	ev_tstamp odiff = diff;	1019	ev_tstamp odiff = rtmn_diff;
796		1020
797	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1021	for (i = 4; --i; ) /* loop a few times, before making important decisions */
798	{	1022	{
799	diff = rt_now - mn_now;	1023	rtmn_diff = rt_now - mn_now;
800		1024
801	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1025	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
802	return; /* all is well */	1026	return; /* all is well */
803		1027
804	rt_now = ev_time ();	1028	rt_now = ev_time ();
805	mn_now = get_clock ();	1029	mn_now = get_clock ();
806	now_floor = mn_now;	1030	now_floor = mn_now;
807	}	1031	}
808		1032
809	periodics_reschedule (EV_A_ diff - odiff);	1033	periodics_reschedule (EV_A);
810	/* no timer adjustment, as the monotonic clock doesn't jump */	1034	/* no timer adjustment, as the monotonic clock doesn't jump */
		1035	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
811	}	1036	}
812	}	1037	}
813	else	1038	else
814	#endif	1039	#endif
815	{	1040	{
816	rt_now = ev_time ();	1041	rt_now = ev_time ();
817		1042
818	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1043	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
819	{	1044	{
820	periodics_reschedule (EV_A_ rt_now - mn_now);	1045	periodics_reschedule (EV_A);
821		1046
822	/* adjust timers. this is easy, as the offset is the same for all */	1047	/* adjust timers. this is easy, as the offset is the same for all */
823	for (i = 0; i < timercnt; ++i)	1048	for (i = 0; i < timercnt; ++i)
824	timers [i]->at += diff;	1049	((WT)timers [i])->at += rt_now - mn_now;
825	}	1050	}
826		1051
827	mn_now = rt_now;	1052	mn_now = rt_now;
828	}	1053	}
829	}	1054	}
…		…
855	{	1080	{
856	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1081	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
857	call_pending (EV_A);	1082	call_pending (EV_A);
858	}	1083	}
859		1084
		1085	/* we might have forked, so reify kernel state if necessary */
		1086	if (expect_false (postfork))
		1087	loop_fork (EV_A);
		1088
860	/* update fd-related kernel structures */	1089	/* update fd-related kernel structures */
861	fd_reify (EV_A);	1090	fd_reify (EV_A);
862		1091
863	/* calculate blocking time */	1092	/* calculate blocking time */
864		1093
…		…
880	{	1109	{
881	block = MAX_BLOCKTIME;	1110	block = MAX_BLOCKTIME;
882		1111
883	if (timercnt)	1112	if (timercnt)
884	{	1113	{
885	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1114	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
886	if (block > to) block = to;	1115	if (block > to) block = to;
887	}	1116	}
888		1117
889	if (periodiccnt)	1118	if (periodiccnt)
890	{	1119	{
891	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1120	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
892	if (block > to) block = to;	1121	if (block > to) block = to;
893	}	1122	}
894		1123
895	if (block < 0.) block = 0.;	1124	if (block < 0.) block = 0.;
896	}	1125	}
…		…
911	/* queue check watchers, to be executed first */	1140	/* queue check watchers, to be executed first */
912	if (checkcnt)	1141	if (checkcnt)
913	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1142	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
914		1143
915	call_pending (EV_A);	1144	call_pending (EV_A);
916	printf ("activecnt %d\n", activecnt);//D
917	}	1145	}
918	while (activecnt && !loop_done);	1146	while (activecnt && !loop_done);
919		1147
920	if (loop_done != 2)	1148	if (loop_done != 2)
921	loop_done = 0;	1149	loop_done = 0;
…		…
989	return;	1217	return;
990		1218
991	assert (("ev_io_start called with negative fd", fd >= 0));	1219	assert (("ev_io_start called with negative fd", fd >= 0));
992		1220
993	ev_start (EV_A_ (W)w, 1);	1221	ev_start (EV_A_ (W)w, 1);
994	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1222	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
995	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1223	wlist_add ((WL *)&anfds[fd].head, (WL)w);
996		1224
997	fd_change (EV_A_ fd);	1225	fd_change (EV_A_ fd);
998	}	1226	}
999		1227
…		…
1014	ev_timer_start (EV_P_ struct ev_timer *w)	1242	ev_timer_start (EV_P_ struct ev_timer *w)
1015	{	1243	{
1016	if (ev_is_active (w))	1244	if (ev_is_active (w))
1017	return;	1245	return;
1018		1246
1019	w->at += mn_now;	1247	((WT)w)->at += mn_now;
1020		1248
1021	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1249	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1022		1250
1023	ev_start (EV_A_ (W)w, ++timercnt);	1251	ev_start (EV_A_ (W)w, ++timercnt);
1024	array_needsize (timers, timermax, timercnt, );	1252	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1025	timers [timercnt - 1] = w;	1253	timers [timercnt - 1] = w;
1026	upheap ((WT *)timers, timercnt - 1);	1254	upheap ((WT *)timers, timercnt - 1);
		1255
		1256	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1027	}	1257	}
1028		1258
1029	void	1259	void
1030	ev_timer_stop (EV_P_ struct ev_timer *w)	1260	ev_timer_stop (EV_P_ struct ev_timer *w)
1031	{	1261	{
1032	ev_clear_pending (EV_A_ (W)w);	1262	ev_clear_pending (EV_A_ (W)w);
1033	if (!ev_is_active (w))	1263	if (!ev_is_active (w))
1034	return;	1264	return;
1035		1265
		1266	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1267
1036	if (w->active < timercnt--)	1268	if (((W)w)->active < timercnt--)
1037	{	1269	{
1038	timers [w->active - 1] = timers [timercnt];	1270	timers [((W)w)->active - 1] = timers [timercnt];
1039	downheap ((WT *)timers, timercnt, w->active - 1);	1271	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1040	}	1272	}
1041		1273
1042	w->at = w->repeat;	1274	((WT)w)->at = w->repeat;
1043		1275
1044	ev_stop (EV_A_ (W)w);	1276	ev_stop (EV_A_ (W)w);
1045	}	1277	}
1046		1278
1047	void	1279	void
…		…
1049	{	1281	{
1050	if (ev_is_active (w))	1282	if (ev_is_active (w))
1051	{	1283	{
1052	if (w->repeat)	1284	if (w->repeat)
1053	{	1285	{
1054	w->at = mn_now + w->repeat;	1286	((WT)w)->at = mn_now + w->repeat;
1055	downheap ((WT *)timers, timercnt, w->active - 1);	1287	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1056	}	1288	}
1057	else	1289	else
1058	ev_timer_stop (EV_A_ w);	1290	ev_timer_stop (EV_A_ w);
1059	}	1291	}
1060	else if (w->repeat)	1292	else if (w->repeat)
…		…
1069		1301
1070	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1302	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1071		1303
1072	/* this formula differs from the one in periodic_reify because we do not always round up */	1304	/* this formula differs from the one in periodic_reify because we do not always round up */
1073	if (w->interval)	1305	if (w->interval)
1074	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1306	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
1075		1307
1076	ev_start (EV_A_ (W)w, ++periodiccnt);	1308	ev_start (EV_A_ (W)w, ++periodiccnt);
1077	array_needsize (periodics, periodicmax, periodiccnt, );	1309	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1078	periodics [periodiccnt - 1] = w;	1310	periodics [periodiccnt - 1] = w;
1079	upheap ((WT *)periodics, periodiccnt - 1);	1311	upheap ((WT *)periodics, periodiccnt - 1);
		1312
		1313	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1080	}	1314	}
1081		1315
1082	void	1316	void
1083	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1317	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1084	{	1318	{
1085	ev_clear_pending (EV_A_ (W)w);	1319	ev_clear_pending (EV_A_ (W)w);
1086	if (!ev_is_active (w))	1320	if (!ev_is_active (w))
1087	return;	1321	return;
1088		1322
		1323	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1324
1089	if (w->active < periodiccnt--)	1325	if (((W)w)->active < periodiccnt--)
1090	{	1326	{
1091	periodics [w->active - 1] = periodics [periodiccnt];	1327	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1092	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1328	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1093	}	1329	}
1094		1330
		1331	ev_stop (EV_A_ (W)w);
		1332	}
		1333
		1334	void
		1335	ev_idle_start (EV_P_ struct ev_idle *w)
		1336	{
		1337	if (ev_is_active (w))
		1338	return;
		1339
		1340	ev_start (EV_A_ (W)w, ++idlecnt);
		1341	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1342	idles [idlecnt - 1] = w;
		1343	}
		1344
		1345	void
		1346	ev_idle_stop (EV_P_ struct ev_idle *w)
		1347	{
		1348	ev_clear_pending (EV_A_ (W)w);
		1349	if (ev_is_active (w))
		1350	return;
		1351
		1352	idles [((W)w)->active - 1] = idles [--idlecnt];
		1353	ev_stop (EV_A_ (W)w);
		1354	}
		1355
		1356	void
		1357	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1358	{
		1359	if (ev_is_active (w))
		1360	return;
		1361
		1362	ev_start (EV_A_ (W)w, ++preparecnt);
		1363	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1364	prepares [preparecnt - 1] = w;
		1365	}
		1366
		1367	void
		1368	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1369	{
		1370	ev_clear_pending (EV_A_ (W)w);
		1371	if (ev_is_active (w))
		1372	return;
		1373
		1374	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1375	ev_stop (EV_A_ (W)w);
		1376	}
		1377
		1378	void
		1379	ev_check_start (EV_P_ struct ev_check *w)
		1380	{
		1381	if (ev_is_active (w))
		1382	return;
		1383
		1384	ev_start (EV_A_ (W)w, ++checkcnt);
		1385	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1386	checks [checkcnt - 1] = w;
		1387	}
		1388
		1389	void
		1390	ev_check_stop (EV_P_ struct ev_check *w)
		1391	{
		1392	ev_clear_pending (EV_A_ (W)w);
		1393	if (ev_is_active (w))
		1394	return;
		1395
		1396	checks [((W)w)->active - 1] = checks [--checkcnt];
1095	ev_stop (EV_A_ (W)w);	1397	ev_stop (EV_A_ (W)w);
1096	}	1398	}
1097		1399
1098	#ifndef SA_RESTART	1400	#ifndef SA_RESTART
1099	# define SA_RESTART 0	1401	# define SA_RESTART 0
1100	#endif	1402	#endif
1101		1403
1102	void	1404	void
1103	ev_signal_start (EV_P_ struct ev_signal *w)	1405	ev_signal_start (EV_P_ struct ev_signal *w)
1104	{	1406	{
		1407	#if EV_MULTIPLICITY
		1408	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1409	#endif
1105	if (ev_is_active (w))	1410	if (ev_is_active (w))
1106	return;	1411	return;
1107		1412
1108	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1413	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1109		1414
1110	ev_start (EV_A_ (W)w, 1);	1415	ev_start (EV_A_ (W)w, 1);
1111	array_needsize (signals, signalmax, w->signum, signals_init);	1416	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1112	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1417	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1113		1418
1114	if (!w->next)	1419	if (!((WL)w)->next)
1115	{	1420	{
		1421	#if WIN32
		1422	signal (w->signum, sighandler);
		1423	#else
1116	struct sigaction sa;	1424	struct sigaction sa;
1117	sa.sa_handler = sighandler;	1425	sa.sa_handler = sighandler;
1118	sigfillset (&sa.sa_mask);	1426	sigfillset (&sa.sa_mask);
1119	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1427	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1120	sigaction (w->signum, &sa, 0);	1428	sigaction (w->signum, &sa, 0);
		1429	#endif
1121	}	1430	}
1122	}	1431	}
1123		1432
1124	void	1433	void
1125	ev_signal_stop (EV_P_ struct ev_signal *w)	1434	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1134	if (!signals [w->signum - 1].head)	1443	if (!signals [w->signum - 1].head)
1135	signal (w->signum, SIG_DFL);	1444	signal (w->signum, SIG_DFL);
1136	}	1445	}
1137		1446
1138	void	1447	void
1139	ev_idle_start (EV_P_ struct ev_idle *w)
1140	{
1141	if (ev_is_active (w))
1142	return;
1143
1144	ev_start (EV_A_ (W)w, ++idlecnt);
1145	array_needsize (idles, idlemax, idlecnt, );
1146	idles [idlecnt - 1] = w;
1147	}
1148
1149	void
1150	ev_idle_stop (EV_P_ struct ev_idle *w)
1151	{
1152	ev_clear_pending (EV_A_ (W)w);
1153	if (ev_is_active (w))
1154	return;
1155
1156	idles [w->active - 1] = idles [--idlecnt];
1157	ev_stop (EV_A_ (W)w);
1158	}
1159
1160	void
1161	ev_prepare_start (EV_P_ struct ev_prepare *w)
1162	{
1163	if (ev_is_active (w))
1164	return;
1165
1166	ev_start (EV_A_ (W)w, ++preparecnt);
1167	array_needsize (prepares, preparemax, preparecnt, );
1168	prepares [preparecnt - 1] = w;
1169	}
1170
1171	void
1172	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1173	{
1174	ev_clear_pending (EV_A_ (W)w);
1175	if (ev_is_active (w))
1176	return;
1177
1178	prepares [w->active - 1] = prepares [--preparecnt];
1179	ev_stop (EV_A_ (W)w);
1180	}
1181
1182	void
1183	ev_check_start (EV_P_ struct ev_check *w)
1184	{
1185	if (ev_is_active (w))
1186	return;
1187
1188	ev_start (EV_A_ (W)w, ++checkcnt);
1189	array_needsize (checks, checkmax, checkcnt, );
1190	checks [checkcnt - 1] = w;
1191	}
1192
1193	void
1194	ev_check_stop (EV_P_ struct ev_check *w)
1195	{
1196	ev_clear_pending (EV_A_ (W)w);
1197	if (ev_is_active (w))
1198	return;
1199
1200	checks [w->active - 1] = checks [--checkcnt];
1201	ev_stop (EV_A_ (W)w);
1202	}
1203
1204	void
1205	ev_child_start (EV_P_ struct ev_child *w)	1448	ev_child_start (EV_P_ struct ev_child *w)
1206	{	1449	{
		1450	#if EV_MULTIPLICITY
		1451	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1452	#endif
1207	if (ev_is_active (w))	1453	if (ev_is_active (w))
1208	return;	1454	return;
1209		1455
1210	ev_start (EV_A_ (W)w, 1);	1456	ev_start (EV_A_ (W)w, 1);
1211	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1457	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1238	void (cb)(int revents, void arg) = once->cb;	1484	void (cb)(int revents, void arg) = once->cb;
1239	void *arg = once->arg;	1485	void *arg = once->arg;
1240		1486
1241	ev_io_stop (EV_A_ &once->io);	1487	ev_io_stop (EV_A_ &once->io);
1242	ev_timer_stop (EV_A_ &once->to);	1488	ev_timer_stop (EV_A_ &once->to);
1243	free (once);	1489	ev_free (once);
1244		1490
1245	cb (revents, arg);	1491	cb (revents, arg);
1246	}	1492	}
1247		1493
1248	static void	1494	static void
…		…
1258	}	1504	}
1259		1505
1260	void	1506	void
1261	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1507	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1262	{	1508	{
1263	struct ev_once *once = malloc (sizeof (struct ev_once));	1509	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1264		1510
1265	if (!once)	1511	if (!once)
1266	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1512	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1267	else	1513	else
1268	{	1514	{
…		…
1283	ev_timer_start (EV_A_ &once->to);	1529	ev_timer_start (EV_A_ &once->to);
1284	}	1530	}
1285	}	1531	}
1286	}	1532	}
1287		1533
1288	/*****************************************************************************/
1289
1290	#if 0
1291
1292	struct ev_io wio;
1293
1294	static void
1295	sin_cb (struct ev_io *w, int revents)
1296	{
1297	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1298	}
1299
1300	static void
1301	ocb (struct ev_timer *w, int revents)
1302	{
1303	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1304	ev_timer_stop (w);
1305	ev_timer_start (w);
1306	}
1307
1308	static void
1309	scb (struct ev_signal *w, int revents)
1310	{
1311	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1312	ev_io_stop (&wio);
1313	ev_io_start (&wio);
1314	}
1315
1316	static void
1317	gcb (struct ev_signal *w, int revents)
1318	{
1319	fprintf (stderr, "generic %x\n", revents);
1320
1321	}
1322
1323	int main (void)
1324	{
1325	ev_init (0);
1326
1327	ev_io_init (&wio, sin_cb, 0, EV_READ);
1328	ev_io_start (&wio);
1329
1330	struct ev_timer t[10000];
1331
1332	#if 0
1333	int i;
1334	for (i = 0; i < 10000; ++i)
1335	{
1336	struct ev_timer *w = t + i;
1337	ev_watcher_init (w, ocb, i);
1338	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1339	ev_timer_start (w);
1340	if (drand48 () < 0.5)
1341	ev_timer_stop (w);
1342	}
1343	#endif
1344
1345	struct ev_timer t1;
1346	ev_timer_init (&t1, ocb, 5, 10);
1347	ev_timer_start (&t1);
1348
1349	struct ev_signal sig;
1350	ev_signal_init (&sig, scb, SIGQUIT);
1351	ev_signal_start (&sig);
1352
1353	struct ev_check cw;
1354	ev_check_init (&cw, gcb);
1355	ev_check_start (&cw);
1356
1357	struct ev_idle iw;
1358	ev_idle_init (&iw, gcb);
1359	ev_idle_start (&iw);
1360
1361	ev_loop (0);
1362
1363	return 0;
1364	}
1365
1366	#endif
1367
1368
1369
1370

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Comparing libev/ev.c (file contents): Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs. Revision 1.75 by root, Tue Nov 6 19:29:20 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.51 by root, Sat Nov 3 21:58:51 2007 UTC vs.
Revision 1.75 by root, Tue Nov 6 19:29:20 2007 UTC