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

Comparing libev/ev.c (file contents):
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs.
Revision 1.79 by root, Fri Nov 9 15:15:20 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
…		…
115	typedef struct ev_watcher_list *WL;	148	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	149	typedef struct ev_watcher_time *WT;
117		150
118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119		152
		153	#include "ev_win32.c"
		154
120	/*****************************************************************************/	155	/*****************************************************************************/
121		156
		157	static void (syserr_cb)(const char msg);
		158
		159	void ev_set_syserr_cb (void (cb)(const char msg))
		160	{
		161	syserr_cb = cb;
		162	}
		163
		164	static void
		165	syserr (const char *msg)
		166	{
		167	if (!msg)
		168	msg = "(libev) system error";
		169
		170	if (syserr_cb)
		171	syserr_cb (msg);
		172	else
		173	{
		174	perror (msg);
		175	abort ();
		176	}
		177	}
		178
		179	static void (alloc)(void *ptr, long size);
		180
		181	void ev_set_allocator (void (cb)(void *ptr, long size))
		182	{
		183	alloc = cb;
		184	}
		185
		186	static void *
		187	ev_realloc (void *ptr, long size)
		188	{
		189	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		190
		191	if (!ptr && size)
		192	{
		193	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		194	abort ();
		195	}
		196
		197	return ptr;
		198	}
		199
		200	#define ev_malloc(size) ev_realloc (0, (size))
		201	#define ev_free(ptr) ev_realloc ((ptr), 0)
		202
		203	/*****************************************************************************/
		204
122	typedef struct	205	typedef struct
123	{	206	{
124	struct ev_watcher_list *head;	207	WL head;
125	unsigned char events;	208	unsigned char events;
126	unsigned char reify;	209	unsigned char reify;
127	} ANFD;	210	} ANFD;
128		211
129	typedef struct	212	typedef struct
130	{	213	{
131	W w;	214	W w;
132	int events;	215	int events;
133	} ANPENDING;	216	} ANPENDING;
134		217
135	#ifdef EV_MULTIPLICITY	218	#if EV_MULTIPLICITY
136		219
137	struct ev_loop	220	struct ev_loop
138	{	221	{
139	# define VAR(name,decl) decl;	222	# define VAR(name,decl) decl;
140	# include "ev_vars.h"	223	# include "ev_vars.h"
…		…
185	ev_now (EV_P)	268	ev_now (EV_P)
186	{	269	{
187	return rt_now;	270	return rt_now;
188	}	271	}
189		272
190	#define array_roundsize(base,n) ((n) \| 4 & ~3)	273	#define array_roundsize(type,n) ((n) \| 4 & ~3)
191		274
192	#define array_needsize(base,cur,cnt,init) \	275	#define array_needsize(type,base,cur,cnt,init) \
193	if (expect_false ((cnt) > cur)) \	276	if (expect_false ((cnt) > cur)) \
194	{ \	277	{ \
195	int newcnt = cur; \	278	int newcnt = cur; \
196	do \	279	do \
197	{ \	280	{ \
198	newcnt = array_roundsize (base, newcnt << 1); \	281	newcnt = array_roundsize (type, newcnt << 1); \
199	} \	282	} \
200	while ((cnt) > newcnt); \	283	while ((cnt) > newcnt); \
201	\	284	\
202	base = realloc (base, sizeof (base) (newcnt)); \	285	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
203	init (base + cur, newcnt - cur); \	286	init (base + cur, newcnt - cur); \
204	cur = newcnt; \	287	cur = newcnt; \
205	}	288	}
		289
		290	#define array_slim(type,stem) \
		291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		292	{ \
		293	stem ## max = array_roundsize (stem ## cnt >> 1); \
		294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		296	}
		297
		298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		300	#define array_free_microshit(stem) \
		301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		302
		303	#define array_free(stem, idx) \
		304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
206		305
207	/*****************************************************************************/	306	/*****************************************************************************/
208		307
209	static void	308	static void
210	anfds_init (ANFD *base, int count)	309	anfds_init (ANFD *base, int count)
…		…
217		316
218	++base;	317	++base;
219	}	318	}
220	}	319	}
221		320
222	static void	321	void
223	event (EV_P_ W w, int events)	322	ev_feed_event (EV_P_ void *w, int revents)
224	{	323	{
		324	W w_ = (W)w;
		325
225	if (w->pending)	326	if (w_->pending)
226	{	327	{
227	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	328	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
228	return;	329	return;
229	}	330	}
230		331
231	w->pending = ++pendingcnt [ABSPRI (w)];	332	w_->pending = ++pendingcnt [ABSPRI (w_)];
232	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	333	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
233	pendings [ABSPRI (w)][w->pending - 1].w = w;	334	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234	pendings [ABSPRI (w)][w->pending - 1].events = events;	335	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235	}	336	}
236		337
237	static void	338	static void
238	queue_events (EV_P_ W *events, int eventcnt, int type)	339	queue_events (EV_P_ W *events, int eventcnt, int type)
239	{	340	{
240	int i;	341	int i;
241		342
242	for (i = 0; i < eventcnt; ++i)	343	for (i = 0; i < eventcnt; ++i)
243	event (EV_A_ events [i], type);	344	ev_feed_event (EV_A_ events [i], type);
244	}	345	}
245		346
246	static void	347	inline void
247	fd_event (EV_P_ int fd, int events)	348	fd_event (EV_P_ int fd, int revents)
248	{	349	{
249	ANFD *anfd = anfds + fd;	350	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	351	struct ev_io *w;
251		352
252	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	353	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
253	{	354	{
254	int ev = w->events & events;	355	int ev = w->events & revents;
255		356
256	if (ev)	357	if (ev)
257	event (EV_A_ (W)w, ev);	358	ev_feed_event (EV_A_ (W)w, ev);
258	}	359	}
		360	}
		361
		362	void
		363	ev_feed_fd_event (EV_P_ int fd, int revents)
		364	{
		365	fd_event (EV_A_ fd, revents);
259	}	366	}
260		367
261	/*****************************************************************************/	368	/*****************************************************************************/
262		369
263	static void	370	static void
…		…
276	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	383	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
277	events \|= w->events;	384	events \|= w->events;
278		385
279	anfd->reify = 0;	386	anfd->reify = 0;
280		387
281	if (anfd->events != events)
282	{
283	method_modify (EV_A_ fd, anfd->events, events);	388	method_modify (EV_A_ fd, anfd->events, events);
284	anfd->events = events;	389	anfd->events = events;
285	}
286	}	390	}
287		391
288	fdchangecnt = 0;	392	fdchangecnt = 0;
289	}	393	}
290		394
291	static void	395	static void
292	fd_change (EV_P_ int fd)	396	fd_change (EV_P_ int fd)
293	{	397	{
294	if (anfds [fd].reify \|\| fdchangecnt < 0)	398	if (anfds [fd].reify)
295	return;	399	return;
296		400
297	anfds [fd].reify = 1;	401	anfds [fd].reify = 1;
298		402
299	++fdchangecnt;	403	++fdchangecnt;
300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	404	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
301	fdchanges [fdchangecnt - 1] = fd;	405	fdchanges [fdchangecnt - 1] = fd;
302	}	406	}
303		407
304	static void	408	static void
305	fd_kill (EV_P_ int fd)	409	fd_kill (EV_P_ int fd)
…		…
307	struct ev_io *w;	411	struct ev_io *w;
308		412
309	while ((w = (struct ev_io *)anfds [fd].head))	413	while ((w = (struct ev_io *)anfds [fd].head))
310	{	414	{
311	ev_io_stop (EV_A_ w);	415	ev_io_stop (EV_A_ w);
312	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	416	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
313	}	417	}
		418	}
		419
		420	static int
		421	fd_valid (int fd)
		422	{
		423	#ifdef WIN32
		424	return !!win32_get_osfhandle (fd);
		425	#else
		426	return fcntl (fd, F_GETFD) != -1;
		427	#endif
314	}	428	}
315		429
316	/* called on EBADF to verify fds */	430	/* called on EBADF to verify fds */
317	static void	431	static void
318	fd_ebadf (EV_P)	432	fd_ebadf (EV_P)
319	{	433	{
320	int fd;	434	int fd;
321		435
322	for (fd = 0; fd < anfdmax; ++fd)	436	for (fd = 0; fd < anfdmax; ++fd)
323	if (anfds [fd].events)	437	if (anfds [fd].events)
324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	438	if (!fd_valid (fd) == -1 && errno == EBADF)
325	fd_kill (EV_A_ fd);	439	fd_kill (EV_A_ fd);
326	}	440	}
327		441
328	/* called on ENOMEM in select/poll to kill some fds and retry */	442	/* called on ENOMEM in select/poll to kill some fds and retry */
329	static void	443	static void
330	fd_enomem (EV_P)	444	fd_enomem (EV_P)
331	{	445	{
332	int fd = anfdmax;	446	int fd;
333		447
334	while (fd--)	448	for (fd = anfdmax; fd--; )
335	if (anfds [fd].events)	449	if (anfds [fd].events)
336	{	450	{
337	close (fd);
338	fd_kill (EV_A_ fd);	451	fd_kill (EV_A_ fd);
339	return;	452	return;
340	}	453	}
341	}	454	}
342		455
		456	/* usually called after fork if method needs to re-arm all fds from scratch */
		457	static void
		458	fd_rearm_all (EV_P)
		459	{
		460	int fd;
		461
		462	/* this should be highly optimised to not do anything but set a flag */
		463	for (fd = 0; fd < anfdmax; ++fd)
		464	if (anfds [fd].events)
		465	{
		466	anfds [fd].events = 0;
		467	fd_change (EV_A_ fd);
		468	}
		469	}
		470
343	/*****************************************************************************/	471	/*****************************************************************************/
344		472
345	static void	473	static void
346	upheap (WT *heap, int k)	474	upheap (WT *heap, int k)
347	{	475	{
348	WT w = heap [k];	476	WT w = heap [k];
349		477
350	while (k && heap [k >> 1]->at > w->at)	478	while (k && heap [k >> 1]->at > w->at)
351	{	479	{
352	heap [k] = heap [k >> 1];	480	heap [k] = heap [k >> 1];
353	heap [k]->active = k + 1;	481	((W)heap [k])->active = k + 1;
354	k >>= 1;	482	k >>= 1;
355	}	483	}
356		484
357	heap [k] = w;	485	heap [k] = w;
358	heap [k]->active = k + 1;	486	((W)heap [k])->active = k + 1;
359		487
360	}	488	}
361		489
362	static void	490	static void
363	downheap (WT *heap, int N, int k)	491	downheap (WT *heap, int N, int k)
…		…
373		501
374	if (w->at <= heap [j]->at)	502	if (w->at <= heap [j]->at)
375	break;	503	break;
376		504
377	heap [k] = heap [j];	505	heap [k] = heap [j];
378	heap [k]->active = k + 1;	506	((W)heap [k])->active = k + 1;
379	k = j;	507	k = j;
380	}	508	}
381		509
382	heap [k] = w;	510	heap [k] = w;
383	heap [k]->active = k + 1;	511	((W)heap [k])->active = k + 1;
384	}	512	}
385		513
386	/*****************************************************************************/	514	/*****************************************************************************/
387		515
388	typedef struct	516	typedef struct
389	{	517	{
390	struct ev_watcher_list *head;	518	WL head;
391	sig_atomic_t volatile gotsig;	519	sig_atomic_t volatile gotsig;
392	} ANSIG;	520	} ANSIG;
393		521
394	static ANSIG *signals;	522	static ANSIG *signals;
395	static int signalmax;	523	static int signalmax;
396		524
397	static int sigpipe [2];	525	static int sigpipe [2];
398	static sig_atomic_t volatile gotsig;	526	static sig_atomic_t volatile gotsig;
		527	static struct ev_io sigev;
399		528
400	static void	529	static void
401	signals_init (ANSIG *base, int count)	530	signals_init (ANSIG *base, int count)
402	{	531	{
403	while (count--)	532	while (count--)
…		…
410	}	539	}
411		540
412	static void	541	static void
413	sighandler (int signum)	542	sighandler (int signum)
414	{	543	{
		544	#if WIN32
		545	signal (signum, sighandler);
		546	#endif
		547
415	signals [signum - 1].gotsig = 1;	548	signals [signum - 1].gotsig = 1;
416		549
417	if (!gotsig)	550	if (!gotsig)
418	{	551	{
419	int old_errno = errno;	552	int old_errno = errno;
420	gotsig = 1;	553	gotsig = 1;
		554	#ifdef WIN32
		555	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		556	#else
421	write (sigpipe [1], &signum, 1);	557	write (sigpipe [1], &signum, 1);
		558	#endif
422	errno = old_errno;	559	errno = old_errno;
423	}	560	}
424	}	561	}
425		562
		563	void
		564	ev_feed_signal_event (EV_P_ int signum)
		565	{
		566	#if EV_MULTIPLICITY
		567	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		568	#endif
		569
		570	--signum;
		571
		572	if (signum < 0 \|\| signum >= signalmax)
		573	return;
		574
		575	signals [signum].gotsig = 0;
		576
		577	for (w = signals [signum].head; w; w = w->next)
		578	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		579	}
		580
426	static void	581	static void
427	sigcb (EV_P_ struct ev_io *iow, int revents)	582	sigcb (EV_P_ struct ev_io *iow, int revents)
428	{	583	{
429	struct ev_watcher_list *w;	584	WL w;
430	int signum;	585	int signum;
431		586
		587	#ifdef WIN32
		588	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		589	#else
432	read (sigpipe [0], &revents, 1);	590	read (sigpipe [0], &revents, 1);
		591	#endif
433	gotsig = 0;	592	gotsig = 0;
434		593
435	for (signum = signalmax; signum--; )	594	for (signum = signalmax; signum--; )
436	if (signals [signum].gotsig)	595	if (signals [signum].gotsig)
437	{	596	sigevent (EV_A_ signum + 1);
438	signals [signum].gotsig = 0;
439
440	for (w = signals [signum].head; w; w = w->next)
441	event (EV_A_ (W)w, EV_SIGNAL);
442	}
443	}	597	}
444		598
445	static void	599	static void
446	siginit (EV_P)	600	siginit (EV_P)
447	{	601	{
…		…
459	ev_unref (EV_A); /* child watcher should not keep loop alive */	613	ev_unref (EV_A); /* child watcher should not keep loop alive */
460	}	614	}
461		615
462	/*****************************************************************************/	616	/*****************************************************************************/
463		617
		618	static struct ev_child *childs [PID_HASHSIZE];
		619
464	#ifndef WIN32	620	#ifndef WIN32
		621
		622	static struct ev_signal childev;
465		623
466	#ifndef WCONTINUED	624	#ifndef WCONTINUED
467	# define WCONTINUED 0	625	# define WCONTINUED 0
468	#endif	626	#endif
469		627
…		…
473	struct ev_child *w;	631	struct ev_child *w;
474		632
475	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	633	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
476	if (w->pid == pid \|\| !w->pid)	634	if (w->pid == pid \|\| !w->pid)
477	{	635	{
478	w->priority = sw->priority; /* need to do it now */	636	ev_priority (w) = ev_priority (sw); /* need to do it now */
479	w->rpid = pid;	637	w->rpid = pid;
480	w->rstatus = status;	638	w->rstatus = status;
481	event (EV_A_ (W)w, EV_CHILD);	639	ev_feed_event (EV_A_ (W)w, EV_CHILD);
482	}	640	}
483	}	641	}
484		642
485	static void	643	static void
486	childcb (EV_P_ struct ev_signal *sw, int revents)	644	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
488	int pid, status;	646	int pid, status;
489		647
490	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	648	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
491	{	649	{
492	/* make sure we are called again until all childs have been reaped */	650	/* make sure we are called again until all childs have been reaped */
493	event (EV_A_ (W)sw, EV_SIGNAL);	651	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
494		652
495	child_reap (EV_A_ sw, pid, pid, status);	653	child_reap (EV_A_ sw, pid, pid, status);
496	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	654	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
497	}	655	}
498	}	656	}
…		…
505	# include "ev_kqueue.c"	663	# include "ev_kqueue.c"
506	#endif	664	#endif
507	#if EV_USE_EPOLL	665	#if EV_USE_EPOLL
508	# include "ev_epoll.c"	666	# include "ev_epoll.c"
509	#endif	667	#endif
510	#if EV_USEV_POLL	668	#if EV_USE_POLL
511	# include "ev_poll.c"	669	# include "ev_poll.c"
512	#endif	670	#endif
513	#if EV_USE_SELECT	671	#if EV_USE_SELECT
514	# include "ev_select.c"	672	# include "ev_select.c"
515	#endif	673	#endif
…		…
560	rt_now = ev_time ();	718	rt_now = ev_time ();
561	mn_now = get_clock ();	719	mn_now = get_clock ();
562	now_floor = mn_now;	720	now_floor = mn_now;
563	rtmn_diff = rt_now - mn_now;	721	rtmn_diff = rt_now - mn_now;
564		722
565	if (pipe (sigpipe))
566	return 0;
567
568	if (methods == EVMETHOD_AUTO)	723	if (methods == EVMETHOD_AUTO)
569	if (!enable_secure () && getenv ("LIBmethodS"))	724	if (!enable_secure () && getenv ("LIBEV_METHODS"))
570	methods = atoi (getenv ("LIBmethodS"));	725	methods = atoi (getenv ("LIBEV_METHODS"));
571	else	726	else
572	methods = EVMETHOD_ANY;	727	methods = EVMETHOD_ANY;
573		728
574	method = 0;	729	method = 0;
		730	#if EV_USE_WIN32
		731	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		732	#endif
575	#if EV_USE_KQUEUE	733	#if EV_USE_KQUEUE
576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	734	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
577	#endif	735	#endif
578	#if EV_USE_EPOLL	736	#if EV_USE_EPOLL
579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	737	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
580	#endif	738	#endif
581	#if EV_USEV_POLL	739	#if EV_USE_POLL
582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	740	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
583	#endif	741	#endif
584	#if EV_USE_SELECT	742	#if EV_USE_SELECT
585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	743	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
586	#endif	744	#endif
587		745
		746	ev_watcher_init (&sigev, sigcb);
		747	ev_set_priority (&sigev, EV_MAXPRI);
		748	}
		749	}
		750
		751	void
		752	loop_destroy (EV_P)
		753	{
		754	int i;
		755
		756	#if EV_USE_WIN32
		757	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		758	#endif
		759	#if EV_USE_KQUEUE
		760	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		761	#endif
		762	#if EV_USE_EPOLL
		763	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		764	#endif
		765	#if EV_USE_POLL
		766	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		767	#endif
		768	#if EV_USE_SELECT
		769	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		770	#endif
		771
		772	for (i = NUMPRI; i--; )
		773	array_free (pending, [i]);
		774
		775	/* have to use the microsoft-never-gets-it-right macro */
		776	array_free_microshit (fdchange);
		777	array_free_microshit (timer);
		778	array_free_microshit (periodic);
		779	array_free_microshit (idle);
		780	array_free_microshit (prepare);
		781	array_free_microshit (check);
		782
		783	method = 0;
		784	}
		785
		786	static void
		787	loop_fork (EV_P)
		788	{
		789	#if EV_USE_EPOLL
		790	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		791	#endif
		792	#if EV_USE_KQUEUE
		793	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		794	#endif
		795
		796	if (ev_is_active (&sigev))
		797	{
		798	/* default loop */
		799
		800	ev_ref (EV_A);
		801	ev_io_stop (EV_A_ &sigev);
		802	close (sigpipe [0]);
		803	close (sigpipe [1]);
		804
		805	while (pipe (sigpipe))
		806	syserr ("(libev) error creating pipe");
		807
		808	siginit (EV_A);
		809	}
		810
		811	postfork = 0;
		812	}
		813
		814	#if EV_MULTIPLICITY
		815	struct ev_loop *
		816	ev_loop_new (int methods)
		817	{
		818	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		819
		820	memset (loop, 0, sizeof (struct ev_loop));
		821
		822	loop_init (EV_A_ methods);
		823
		824	if (ev_method (EV_A))
		825	return loop;
		826
		827	return 0;
		828	}
		829
		830	void
		831	ev_loop_destroy (EV_P)
		832	{
		833	loop_destroy (EV_A);
		834	ev_free (loop);
		835	}
		836
		837	void
		838	ev_loop_fork (EV_P)
		839	{
		840	postfork = 1;
		841	}
		842
		843	#endif
		844
		845	#if EV_MULTIPLICITY
		846	struct ev_loop default_loop_struct;
		847	static struct ev_loop *default_loop;
		848
		849	struct ev_loop *
		850	#else
		851	static int default_loop;
		852
		853	int
		854	#endif
		855	ev_default_loop (int methods)
		856	{
		857	if (sigpipe [0] == sigpipe [1])
		858	if (pipe (sigpipe))
		859	return 0;
		860
		861	if (!default_loop)
		862	{
		863	#if EV_MULTIPLICITY
		864	struct ev_loop *loop = default_loop = &default_loop_struct;
		865	#else
		866	default_loop = 1;
		867	#endif
		868
		869	loop_init (EV_A_ methods);
		870
588	if (method)	871	if (ev_method (EV_A))
589	{	872	{
590	ev_watcher_init (&sigev, sigcb);
591	ev_set_priority (&sigev, EV_MAXPRI);
592	siginit (EV_A);	873	siginit (EV_A);
593		874
594	#ifndef WIN32	875	#ifndef WIN32
595	ev_signal_init (&childev, childcb, SIGCHLD);	876	ev_signal_init (&childev, childcb, SIGCHLD);
596	ev_set_priority (&childev, EV_MAXPRI);	877	ev_set_priority (&childev, EV_MAXPRI);
597	ev_signal_start (EV_A_ &childev);	878	ev_signal_start (EV_A_ &childev);
598	ev_unref (EV_A); /* child watcher should not keep loop alive */	879	ev_unref (EV_A); /* child watcher should not keep loop alive */
599	#endif	880	#endif
600	}	881	}
		882	else
		883	default_loop = 0;
601	}	884	}
602		885
603	return method;	886	return default_loop;
604	}	887	}
605		888
		889	void
		890	ev_default_destroy (void)
		891	{
606	#ifdef EV_MULTIPLICITY	892	#if EV_MULTIPLICITY
607		893	struct ev_loop *loop = default_loop;
608	struct ev_loop *
609	ev_loop_new (int methods)
610	{
611	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));
612
613	loop_init (EV_A_ methods);
614
615	return loop;
616	}
617
618	void
619	ev_loop_delete (EV_P)
620	{
621	/TODO/
622	free (loop);
623	}
624
625	#else
626
627	int
628	ev_init (int methods)
629	{
630	loop_init ();
631	}
632
633	#endif	894	#endif
		895
		896	#ifndef WIN32
		897	ev_ref (EV_A); /* child watcher */
		898	ev_signal_stop (EV_A_ &childev);
		899	#endif
		900
		901	ev_ref (EV_A); /* signal watcher */
		902	ev_io_stop (EV_A_ &sigev);
		903
		904	close (sigpipe [0]); sigpipe [0] = 0;
		905	close (sigpipe [1]); sigpipe [1] = 0;
		906
		907	loop_destroy (EV_A);
		908	}
		909
		910	void
		911	ev_default_fork (void)
		912	{
		913	#if EV_MULTIPLICITY
		914	struct ev_loop *loop = default_loop;
		915	#endif
		916
		917	if (method)
		918	postfork = 1;
		919	}
634		920
635	/*****************************************************************************/	921	/*****************************************************************************/
636		922
637	void	923	static int
638	ev_fork_prepare (void)	924	any_pending (EV_P)
639	{	925	{
640	/* nop */	926	int pri;
641	}
642		927
643	void	928	for (pri = NUMPRI; pri--; )
644	ev_fork_parent (void)	929	if (pendingcnt [pri])
645	{	930	return 1;
646	/* nop */
647	}
648		931
649	void	932	return 0;
650	ev_fork_child (void)
651	{
652	/TODO/
653	#if !EV_MULTIPLICITY
654	#if EV_USE_EPOLL
655	if (method == EVMETHOD_EPOLL)
656	epoll_postfork_child (EV_A);
657	#endif
658
659	ev_io_stop (EV_A_ &sigev);
660	close (sigpipe [0]);
661	close (sigpipe [1]);
662	pipe (sigpipe);
663	siginit (EV_A);
664	#endif
665	}	933	}
666
667	/*****************************************************************************/
668		934
669	static void	935	static void
670	call_pending (EV_P)	936	call_pending (EV_P)
671	{	937	{
672	int pri;	938	int pri;
…		…
685	}	951	}
686		952
687	static void	953	static void
688	timers_reify (EV_P)	954	timers_reify (EV_P)
689	{	955	{
690	while (timercnt && timers [0]->at <= mn_now)	956	while (timercnt && ((WT)timers [0])->at <= mn_now)
691	{	957	{
692	struct ev_timer *w = timers [0];	958	struct ev_timer *w = timers [0];
		959
		960	assert (("inactive timer on timer heap detected", ev_is_active (w)));
693		961
694	/* first reschedule or stop timer */	962	/* first reschedule or stop timer */
695	if (w->repeat)	963	if (w->repeat)
696	{	964	{
697	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	965	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
698	w->at = mn_now + w->repeat;	966	((WT)w)->at = mn_now + w->repeat;
699	downheap ((WT *)timers, timercnt, 0);	967	downheap ((WT *)timers, timercnt, 0);
700	}	968	}
701	else	969	else
702	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	970	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
703		971
704	event (EV_A_ (W)w, EV_TIMEOUT);	972	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
705	}	973	}
706	}	974	}
707		975
708	static void	976	static void
709	periodics_reify (EV_P)	977	periodics_reify (EV_P)
710	{	978	{
711	while (periodiccnt && periodics [0]->at <= rt_now)	979	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)
712	{	980	{
713	struct ev_periodic *w = periodics [0];	981	struct ev_periodic *w = periodics [0];
714		982
		983	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		984
715	/* first reschedule or stop timer */	985	/* first reschedule or stop timer */
716	if (w->interval)	986	if (w->reschedule_cb)
717	{	987	{
		988	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);
		989
		990	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));
		991	downheap ((WT *)periodics, periodiccnt, 0);
		992	}
		993	else if (w->interval)
		994	{
718	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	995	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
719	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	996	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));
720	downheap ((WT *)periodics, periodiccnt, 0);	997	downheap ((WT *)periodics, periodiccnt, 0);
721	}	998	}
722	else	999	else
723	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1000	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
724		1001
725	event (EV_A_ (W)w, EV_PERIODIC);	1002	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
726	}	1003	}
727	}	1004	}
728		1005
729	static void	1006	static void
730	periodics_reschedule (EV_P)	1007	periodics_reschedule (EV_P)
…		…
734	/* adjust periodics after time jump */	1011	/* adjust periodics after time jump */
735	for (i = 0; i < periodiccnt; ++i)	1012	for (i = 0; i < periodiccnt; ++i)
736	{	1013	{
737	struct ev_periodic *w = periodics [i];	1014	struct ev_periodic *w = periodics [i];
738		1015
		1016	if (w->reschedule_cb)
		1017	((WT)w)->at = w->reschedule_cb (w, rt_now);
739	if (w->interval)	1018	else if (w->interval)
740	{
741	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1019	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
742
743	if (fabs (diff) >= 1e-4)
744	{
745	ev_periodic_stop (EV_A_ w);
746	ev_periodic_start (EV_A_ w);
747
748	i = 0; /* restart loop, inefficient, but time jumps should be rare */
749	}
750	}
751	}	1020	}
		1021
		1022	/* now rebuild the heap */
		1023	for (i = periodiccnt >> 1; i--; )
		1024	downheap ((WT *)periodics, periodiccnt, i);
752	}	1025	}
753		1026
754	inline int	1027	inline int
755	time_update_monotonic (EV_P)	1028	time_update_monotonic (EV_P)
756	{	1029	{
…		…
807	{	1080	{
808	periodics_reschedule (EV_A);	1081	periodics_reschedule (EV_A);
809		1082
810	/* adjust timers. this is easy, as the offset is the same for all */	1083	/* adjust timers. this is easy, as the offset is the same for all */
811	for (i = 0; i < timercnt; ++i)	1084	for (i = 0; i < timercnt; ++i)
812	timers [i]->at += rt_now - mn_now;	1085	((WT)timers [i])->at += rt_now - mn_now;
813	}	1086	}
814		1087
815	mn_now = rt_now;	1088	mn_now = rt_now;
816	}	1089	}
817	}	1090	}
…		…
843	{	1116	{
844	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1117	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
845	call_pending (EV_A);	1118	call_pending (EV_A);
846	}	1119	}
847		1120
		1121	/* we might have forked, so reify kernel state if necessary */
		1122	if (expect_false (postfork))
		1123	loop_fork (EV_A);
		1124
848	/* update fd-related kernel structures */	1125	/* update fd-related kernel structures */
849	fd_reify (EV_A);	1126	fd_reify (EV_A);
850		1127
851	/* calculate blocking time */	1128	/* calculate blocking time */
852		1129
853	/* we only need this for !monotonic clockor timers, but as we basically	1130	/* we only need this for !monotonic clock or timers, but as we basically
854	always have timers, we just calculate it always */	1131	always have timers, we just calculate it always */
855	#if EV_USE_MONOTONIC	1132	#if EV_USE_MONOTONIC
856	if (expect_true (have_monotonic))	1133	if (expect_true (have_monotonic))
857	time_update_monotonic (EV_A);	1134	time_update_monotonic (EV_A);
858	else	1135	else
…		…
868	{	1145	{
869	block = MAX_BLOCKTIME;	1146	block = MAX_BLOCKTIME;
870		1147
871	if (timercnt)	1148	if (timercnt)
872	{	1149	{
873	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1150	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
874	if (block > to) block = to;	1151	if (block > to) block = to;
875	}	1152	}
876		1153
877	if (periodiccnt)	1154	if (periodiccnt)
878	{	1155	{
879	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1156	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;
880	if (block > to) block = to;	1157	if (block > to) block = to;
881	}	1158	}
882		1159
883	if (block < 0.) block = 0.;	1160	if (block < 0.) block = 0.;
884	}	1161	}
…		…
891	/* queue pending timers and reschedule them */	1168	/* queue pending timers and reschedule them */
892	timers_reify (EV_A); /* relative timers called last */	1169	timers_reify (EV_A); /* relative timers called last */
893	periodics_reify (EV_A); /* absolute timers called first */	1170	periodics_reify (EV_A); /* absolute timers called first */
894		1171
895	/* queue idle watchers unless io or timers are pending */	1172	/* queue idle watchers unless io or timers are pending */
896	if (!pendingcnt)	1173	if (idlecnt && !any_pending (EV_A))
897	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1174	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
898		1175
899	/* queue check watchers, to be executed first */	1176	/* queue check watchers, to be executed first */
900	if (checkcnt)	1177	if (checkcnt)
901	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1178	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
976	return;	1253	return;
977		1254
978	assert (("ev_io_start called with negative fd", fd >= 0));	1255	assert (("ev_io_start called with negative fd", fd >= 0));
979		1256
980	ev_start (EV_A_ (W)w, 1);	1257	ev_start (EV_A_ (W)w, 1);
981	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1258	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
982	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1259	wlist_add ((WL *)&anfds[fd].head, (WL)w);
983		1260
984	fd_change (EV_A_ fd);	1261	fd_change (EV_A_ fd);
985	}	1262	}
986		1263
…		…
1001	ev_timer_start (EV_P_ struct ev_timer *w)	1278	ev_timer_start (EV_P_ struct ev_timer *w)
1002	{	1279	{
1003	if (ev_is_active (w))	1280	if (ev_is_active (w))
1004	return;	1281	return;
1005		1282
1006	w->at += mn_now;	1283	((WT)w)->at += mn_now;
1007		1284
1008	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1285	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1009		1286
1010	ev_start (EV_A_ (W)w, ++timercnt);	1287	ev_start (EV_A_ (W)w, ++timercnt);
1011	array_needsize (timers, timermax, timercnt, );	1288	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1012	timers [timercnt - 1] = w;	1289	timers [timercnt - 1] = w;
1013	upheap ((WT *)timers, timercnt - 1);	1290	upheap ((WT *)timers, timercnt - 1);
		1291
		1292	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1014	}	1293	}
1015		1294
1016	void	1295	void
1017	ev_timer_stop (EV_P_ struct ev_timer *w)	1296	ev_timer_stop (EV_P_ struct ev_timer *w)
1018	{	1297	{
1019	ev_clear_pending (EV_A_ (W)w);	1298	ev_clear_pending (EV_A_ (W)w);
1020	if (!ev_is_active (w))	1299	if (!ev_is_active (w))
1021	return;	1300	return;
1022		1301
		1302	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1303
1023	if (w->active < timercnt--)	1304	if (((W)w)->active < timercnt--)
1024	{	1305	{
1025	timers [w->active - 1] = timers [timercnt];	1306	timers [((W)w)->active - 1] = timers [timercnt];
1026	downheap ((WT *)timers, timercnt, w->active - 1);	1307	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1027	}	1308	}
1028		1309
1029	w->at = w->repeat;	1310	((WT)w)->at = w->repeat;
1030		1311
1031	ev_stop (EV_A_ (W)w);	1312	ev_stop (EV_A_ (W)w);
1032	}	1313	}
1033		1314
1034	void	1315	void
…		…
1036	{	1317	{
1037	if (ev_is_active (w))	1318	if (ev_is_active (w))
1038	{	1319	{
1039	if (w->repeat)	1320	if (w->repeat)
1040	{	1321	{
1041	w->at = mn_now + w->repeat;	1322	((WT)w)->at = mn_now + w->repeat;
1042	downheap ((WT *)timers, timercnt, w->active - 1);	1323	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1043	}	1324	}
1044	else	1325	else
1045	ev_timer_stop (EV_A_ w);	1326	ev_timer_stop (EV_A_ w);
1046	}	1327	}
1047	else if (w->repeat)	1328	else if (w->repeat)
…		…
1052	ev_periodic_start (EV_P_ struct ev_periodic *w)	1333	ev_periodic_start (EV_P_ struct ev_periodic *w)
1053	{	1334	{
1054	if (ev_is_active (w))	1335	if (ev_is_active (w))
1055	return;	1336	return;
1056		1337
		1338	if (w->reschedule_cb)
		1339	((WT)w)->at = w->reschedule_cb (w, rt_now);
		1340	else if (w->interval)
		1341	{
1057	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1342	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1058
1059	/* this formula differs from the one in periodic_reify because we do not always round up */	1343	/* this formula differs from the one in periodic_reify because we do not always round up */
1060	if (w->interval)
1061	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1344	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1345	}
1062		1346
1063	ev_start (EV_A_ (W)w, ++periodiccnt);	1347	ev_start (EV_A_ (W)w, ++periodiccnt);
1064	array_needsize (periodics, periodicmax, periodiccnt, );	1348	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1065	periodics [periodiccnt - 1] = w;	1349	periodics [periodiccnt - 1] = w;
1066	upheap ((WT *)periodics, periodiccnt - 1);	1350	upheap ((WT *)periodics, periodiccnt - 1);
		1351
		1352	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1067	}	1353	}
1068		1354
1069	void	1355	void
1070	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1356	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1071	{	1357	{
1072	ev_clear_pending (EV_A_ (W)w);	1358	ev_clear_pending (EV_A_ (W)w);
1073	if (!ev_is_active (w))	1359	if (!ev_is_active (w))
1074	return;	1360	return;
1075		1361
		1362	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1363
1076	if (w->active < periodiccnt--)	1364	if (((W)w)->active < periodiccnt--)
1077	{	1365	{
1078	periodics [w->active - 1] = periodics [periodiccnt];	1366	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1079	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1367	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1080	}	1368	}
1081		1369
		1370	ev_stop (EV_A_ (W)w);
		1371	}
		1372
		1373	void
		1374	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1375	{
		1376	ev_periodic_stop (EV_A_ w);
		1377	ev_periodic_start (EV_A_ w);
		1378	}
		1379
		1380	void
		1381	ev_idle_start (EV_P_ struct ev_idle *w)
		1382	{
		1383	if (ev_is_active (w))
		1384	return;
		1385
		1386	ev_start (EV_A_ (W)w, ++idlecnt);
		1387	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1388	idles [idlecnt - 1] = w;
		1389	}
		1390
		1391	void
		1392	ev_idle_stop (EV_P_ struct ev_idle *w)
		1393	{
		1394	ev_clear_pending (EV_A_ (W)w);
		1395	if (ev_is_active (w))
		1396	return;
		1397
		1398	idles [((W)w)->active - 1] = idles [--idlecnt];
		1399	ev_stop (EV_A_ (W)w);
		1400	}
		1401
		1402	void
		1403	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1404	{
		1405	if (ev_is_active (w))
		1406	return;
		1407
		1408	ev_start (EV_A_ (W)w, ++preparecnt);
		1409	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1410	prepares [preparecnt - 1] = w;
		1411	}
		1412
		1413	void
		1414	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1415	{
		1416	ev_clear_pending (EV_A_ (W)w);
		1417	if (ev_is_active (w))
		1418	return;
		1419
		1420	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1421	ev_stop (EV_A_ (W)w);
		1422	}
		1423
		1424	void
		1425	ev_check_start (EV_P_ struct ev_check *w)
		1426	{
		1427	if (ev_is_active (w))
		1428	return;
		1429
		1430	ev_start (EV_A_ (W)w, ++checkcnt);
		1431	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1432	checks [checkcnt - 1] = w;
		1433	}
		1434
		1435	void
		1436	ev_check_stop (EV_P_ struct ev_check *w)
		1437	{
		1438	ev_clear_pending (EV_A_ (W)w);
		1439	if (ev_is_active (w))
		1440	return;
		1441
		1442	checks [((W)w)->active - 1] = checks [--checkcnt];
1082	ev_stop (EV_A_ (W)w);	1443	ev_stop (EV_A_ (W)w);
1083	}	1444	}
1084		1445
1085	#ifndef SA_RESTART	1446	#ifndef SA_RESTART
1086	# define SA_RESTART 0	1447	# define SA_RESTART 0
1087	#endif	1448	#endif
1088		1449
1089	void	1450	void
1090	ev_signal_start (EV_P_ struct ev_signal *w)	1451	ev_signal_start (EV_P_ struct ev_signal *w)
1091	{	1452	{
		1453	#if EV_MULTIPLICITY
		1454	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1455	#endif
1092	if (ev_is_active (w))	1456	if (ev_is_active (w))
1093	return;	1457	return;
1094		1458
1095	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1459	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1096		1460
1097	ev_start (EV_A_ (W)w, 1);	1461	ev_start (EV_A_ (W)w, 1);
1098	array_needsize (signals, signalmax, w->signum, signals_init);	1462	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1099	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1463	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1100		1464
1101	if (!w->next)	1465	if (!((WL)w)->next)
1102	{	1466	{
		1467	#if WIN32
		1468	signal (w->signum, sighandler);
		1469	#else
1103	struct sigaction sa;	1470	struct sigaction sa;
1104	sa.sa_handler = sighandler;	1471	sa.sa_handler = sighandler;
1105	sigfillset (&sa.sa_mask);	1472	sigfillset (&sa.sa_mask);
1106	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1473	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1107	sigaction (w->signum, &sa, 0);	1474	sigaction (w->signum, &sa, 0);
		1475	#endif
1108	}	1476	}
1109	}	1477	}
1110		1478
1111	void	1479	void
1112	ev_signal_stop (EV_P_ struct ev_signal *w)	1480	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1121	if (!signals [w->signum - 1].head)	1489	if (!signals [w->signum - 1].head)
1122	signal (w->signum, SIG_DFL);	1490	signal (w->signum, SIG_DFL);
1123	}	1491	}
1124		1492
1125	void	1493	void
1126	ev_idle_start (EV_P_ struct ev_idle *w)
1127	{
1128	if (ev_is_active (w))
1129	return;
1130
1131	ev_start (EV_A_ (W)w, ++idlecnt);
1132	array_needsize (idles, idlemax, idlecnt, );
1133	idles [idlecnt - 1] = w;
1134	}
1135
1136	void
1137	ev_idle_stop (EV_P_ struct ev_idle *w)
1138	{
1139	ev_clear_pending (EV_A_ (W)w);
1140	if (ev_is_active (w))
1141	return;
1142
1143	idles [w->active - 1] = idles [--idlecnt];
1144	ev_stop (EV_A_ (W)w);
1145	}
1146
1147	void
1148	ev_prepare_start (EV_P_ struct ev_prepare *w)
1149	{
1150	if (ev_is_active (w))
1151	return;
1152
1153	ev_start (EV_A_ (W)w, ++preparecnt);
1154	array_needsize (prepares, preparemax, preparecnt, );
1155	prepares [preparecnt - 1] = w;
1156	}
1157
1158	void
1159	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1160	{
1161	ev_clear_pending (EV_A_ (W)w);
1162	if (ev_is_active (w))
1163	return;
1164
1165	prepares [w->active - 1] = prepares [--preparecnt];
1166	ev_stop (EV_A_ (W)w);
1167	}
1168
1169	void
1170	ev_check_start (EV_P_ struct ev_check *w)
1171	{
1172	if (ev_is_active (w))
1173	return;
1174
1175	ev_start (EV_A_ (W)w, ++checkcnt);
1176	array_needsize (checks, checkmax, checkcnt, );
1177	checks [checkcnt - 1] = w;
1178	}
1179
1180	void
1181	ev_check_stop (EV_P_ struct ev_check *w)
1182	{
1183	ev_clear_pending (EV_A_ (W)w);
1184	if (ev_is_active (w))
1185	return;
1186
1187	checks [w->active - 1] = checks [--checkcnt];
1188	ev_stop (EV_A_ (W)w);
1189	}
1190
1191	void
1192	ev_child_start (EV_P_ struct ev_child *w)	1494	ev_child_start (EV_P_ struct ev_child *w)
1193	{	1495	{
		1496	#if EV_MULTIPLICITY
		1497	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1498	#endif
1194	if (ev_is_active (w))	1499	if (ev_is_active (w))
1195	return;	1500	return;
1196		1501
1197	ev_start (EV_A_ (W)w, 1);	1502	ev_start (EV_A_ (W)w, 1);
1198	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1503	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1225	void (cb)(int revents, void arg) = once->cb;	1530	void (cb)(int revents, void arg) = once->cb;
1226	void *arg = once->arg;	1531	void *arg = once->arg;
1227		1532
1228	ev_io_stop (EV_A_ &once->io);	1533	ev_io_stop (EV_A_ &once->io);
1229	ev_timer_stop (EV_A_ &once->to);	1534	ev_timer_stop (EV_A_ &once->to);
1230	free (once);	1535	ev_free (once);
1231		1536
1232	cb (revents, arg);	1537	cb (revents, arg);
1233	}	1538	}
1234		1539
1235	static void	1540	static void
…		…
1245	}	1550	}
1246		1551
1247	void	1552	void
1248	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1553	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1249	{	1554	{
1250	struct ev_once *once = malloc (sizeof (struct ev_once));	1555	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1251		1556
1252	if (!once)	1557	if (!once)
1253	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1558	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1254	else	1559	else
1255	{	1560	{
…		…
1270	ev_timer_start (EV_A_ &once->to);	1575	ev_timer_start (EV_A_ &once->to);
1271	}	1576	}
1272	}	1577	}
1273	}	1578	}
1274		1579
1275	/*****************************************************************************/
1276
1277	#if 0
1278
1279	struct ev_io wio;
1280
1281	static void
1282	sin_cb (struct ev_io *w, int revents)
1283	{
1284	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1285	}
1286
1287	static void
1288	ocb (struct ev_timer *w, int revents)
1289	{
1290	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1291	ev_timer_stop (w);
1292	ev_timer_start (w);
1293	}
1294
1295	static void
1296	scb (struct ev_signal *w, int revents)
1297	{
1298	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1299	ev_io_stop (&wio);
1300	ev_io_start (&wio);
1301	}
1302
1303	static void
1304	gcb (struct ev_signal *w, int revents)
1305	{
1306	fprintf (stderr, "generic %x\n", revents);
1307
1308	}
1309
1310	int main (void)
1311	{
1312	ev_init (0);
1313
1314	ev_io_init (&wio, sin_cb, 0, EV_READ);
1315	ev_io_start (&wio);
1316
1317	struct ev_timer t[10000];
1318
1319	#if 0
1320	int i;
1321	for (i = 0; i < 10000; ++i)
1322	{
1323	struct ev_timer *w = t + i;
1324	ev_watcher_init (w, ocb, i);
1325	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1326	ev_timer_start (w);
1327	if (drand48 () < 0.5)
1328	ev_timer_stop (w);
1329	}
1330	#endif
1331
1332	struct ev_timer t1;
1333	ev_timer_init (&t1, ocb, 5, 10);
1334	ev_timer_start (&t1);
1335
1336	struct ev_signal sig;
1337	ev_signal_init (&sig, scb, SIGQUIT);
1338	ev_signal_start (&sig);
1339
1340	struct ev_check cw;
1341	ev_check_init (&cw, gcb);
1342	ev_check_start (&cw);
1343
1344	struct ev_idle iw;
1345	ev_idle_init (&iw, gcb);
1346	ev_idle_start (&iw);
1347
1348	ev_loop (0);
1349
1350	return 0;
1351	}
1352
1353	#endif
1354
1355
1356
1357

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing libev/ev.c (file contents): Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs. Revision 1.79 by root, Fri Nov 9 15:15:20 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs.
Revision 1.79 by root, Fri Nov 9 15:15:20 2007 UTC