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

Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
33	#endif	64	#endif
34		65
35	#include <math.h>	66	#include <math.h>
36	#include <stdlib.h>	67	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	68	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	69	#include <stddef.h>
41		70
42	#include <stdio.h>	71	#include <stdio.h>
43		72
44	#include <assert.h>	73	#include <assert.h>
45	#include <errno.h>	74	#include <errno.h>
46	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
47	#ifndef WIN32	80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
48	# include <sys/wait.h>	83	# include <sys/wait.h>
49	#endif	84	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	85	/**/
54		86
55	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
57	#endif	89	#endif
…		…
68	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
69	#endif	101	#endif
70		102
71	#ifndef EV_USE_KQUEUE	103	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	104	# define EV_USE_KQUEUE 0
		105	#endif
		106
		107	#ifndef EV_USE_WIN32
		108	# ifdef WIN32
		109	# define EV_USE_WIN32 0 /* it does not exist, use select */
		110	# undef EV_USE_SELECT
		111	# define EV_USE_SELECT 1
		112	# else
		113	# define EV_USE_WIN32 0
		114	# endif
73	#endif	115	#endif
74		116
75	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
77	#endif	119	#endif
…		…
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
97		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
98	#include "ev.h"	143	# include "ev.h"
		144	#endif
99		145
100	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	148	# define inline inline
103	#else	149	#else
…		…
113		159
114	typedef struct ev_watcher *W;	160	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
117		163
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		165
		166	#ifdef WIN32
		167	# include "ev_win32.c"
		168	#endif
		169
		170	/*****************************************************************************/
		171
		172	static void (syserr_cb)(const char msg);
		173
		174	void ev_set_syserr_cb (void (cb)(const char msg))
		175	{
		176	syserr_cb = cb;
		177	}
		178
		179	static void
		180	syserr (const char *msg)
		181	{
		182	if (!msg)
		183	msg = "(libev) system error";
		184
		185	if (syserr_cb)
		186	syserr_cb (msg);
		187	else
		188	{
		189	perror (msg);
		190	abort ();
		191	}
		192	}
		193
		194	static void (alloc)(void *ptr, long size);
		195
		196	void ev_set_allocator (void (cb)(void *ptr, long size))
		197	{
		198	alloc = cb;
		199	}
		200
		201	static void *
		202	ev_realloc (void *ptr, long size)
		203	{
		204	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		205
		206	if (!ptr && size)
		207	{
		208	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		209	abort ();
		210	}
		211
		212	return ptr;
		213	}
		214
		215	#define ev_malloc(size) ev_realloc (0, (size))
		216	#define ev_free(ptr) ev_realloc ((ptr), 0)
		217
		218	/*****************************************************************************/
		219
		220	typedef struct
		221	{
		222	WL head;
		223	unsigned char events;
		224	unsigned char reify;
		225	} ANFD;
		226
		227	typedef struct
		228	{
		229	W w;
		230	int events;
		231	} ANPENDING;
		232
		233	#if EV_MULTIPLICITY
		234
		235	struct ev_loop
		236	{
		237	ev_tstamp ev_rt_now;
		238	#define VAR(name,decl) decl;
		239	#include "ev_vars.h"
		240	#undef VAR
		241	};
		242	#include "ev_wrap.h"
		243
		244	struct ev_loop default_loop_struct;
		245	static struct ev_loop *default_loop;
		246
		247	#else
		248
119	ev_tstamp ev_now;	249	ev_tstamp ev_rt_now;
120	int ev_method;	250	#define VAR(name,decl) static decl;
		251	#include "ev_vars.h"
		252	#undef VAR
121		253
122	static int have_monotonic; /* runtime */	254	static int default_loop;
123		255
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	256	#endif
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		257
128	/*****************************************************************************/	258	/*****************************************************************************/
129		259
130	ev_tstamp	260	ev_tstamp
131	ev_time (void)	261	ev_time (void)
…		…
139	gettimeofday (&tv, 0);	269	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	270	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	271	#endif
142	}	272	}
143		273
144	static ev_tstamp	274	inline ev_tstamp
145	get_clock (void)	275	get_clock (void)
146	{	276	{
147	#if EV_USE_MONOTONIC	277	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	278	if (expect_true (have_monotonic))
149	{	279	{
…		…
154	#endif	284	#endif
155		285
156	return ev_time ();	286	return ev_time ();
157	}	287	}
158		288
		289	#if EV_MULTIPLICITY
		290	ev_tstamp
		291	ev_now (EV_P)
		292	{
		293	return ev_rt_now;
		294	}
		295	#endif
		296
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	297	#define array_roundsize(type,n) ((n) \| 4 & ~3)
160		298
161	#define array_needsize(base,cur,cnt,init) \	299	#define array_needsize(type,base,cur,cnt,init) \
162	if (expect_false ((cnt) > cur)) \	300	if (expect_false ((cnt) > cur)) \
163	{ \	301	{ \
164	int newcnt = cur; \	302	int newcnt = cur; \
165	do \	303	do \
166	{ \	304	{ \
167	newcnt = array_roundsize (base, newcnt << 1); \	305	newcnt = array_roundsize (type, newcnt << 1); \
168	} \	306	} \
169	while ((cnt) > newcnt); \	307	while ((cnt) > newcnt); \
170	\	308	\
171	base = realloc (base, sizeof (base) (newcnt)); \	309	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
172	init (base + cur, newcnt - cur); \	310	init (base + cur, newcnt - cur); \
173	cur = newcnt; \	311	cur = newcnt; \
174	}	312	}
		313
		314	#define array_slim(type,stem) \
		315	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		316	{ \
		317	stem ## max = array_roundsize (stem ## cnt >> 1); \
		318	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		319	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		320	}
		321
		322	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		323	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		324	#define array_free_microshit(stem) \
		325	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		326
		327	#define array_free(stem, idx) \
		328	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
175		329
176	/*****************************************************************************/	330	/*****************************************************************************/
177
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187		331
188	static void	332	static void
189	anfds_init (ANFD *base, int count)	333	anfds_init (ANFD *base, int count)
190	{	334	{
191	while (count--)	335	while (count--)
…		…
196		340
197	++base;	341	++base;
198	}	342	}
199	}	343	}
200		344
201	typedef struct	345	void
		346	ev_feed_event (EV_P_ void *w, int revents)
202	{	347	{
203	W w;	348	W w_ = (W)w;
204	int events;
205	} ANPENDING;
206		349
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void
211	event (W w, int events)
212	{
213	if (w->pending)	350	if (w_->pending)
214	{	351	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
216	return;	353	return;
217	}	354	}
218		355
219	w->pending = ++pendingcnt [ABSPRI (w)];	356	w_->pending = ++pendingcnt [ABSPRI (w_)];
220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	357	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
223	}	360	}
224		361
225	static void	362	static void
226	queue_events (W *events, int eventcnt, int type)	363	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	364	{
228	int i;	365	int i;
229		366
230	for (i = 0; i < eventcnt; ++i)	367	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	368	ev_feed_event (EV_A_ events [i], type);
232	}	369	}
233		370
234	static void	371	inline void
235	fd_event (int fd, int events)	372	fd_event (EV_P_ int fd, int revents)
236	{	373	{
237	ANFD *anfd = anfds + fd;	374	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	375	struct ev_io *w;
239		376
240	for (w = anfd->head; w; w = w->next)	377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	378	{
242	int ev = w->events & events;	379	int ev = w->events & revents;
243		380
244	if (ev)	381	if (ev)
245	event ((W)w, ev);	382	ev_feed_event (EV_A_ (W)w, ev);
246	}	383	}
		384	}
		385
		386	void
		387	ev_feed_fd_event (EV_P_ int fd, int revents)
		388	{
		389	fd_event (EV_A_ fd, revents);
247	}	390	}
248		391
249	/*****************************************************************************/	392	/*****************************************************************************/
250		393
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	394	static void
255	fd_reify (void)	395	fd_reify (EV_P)
256	{	396	{
257	int i;	397	int i;
258		398
259	for (i = 0; i < fdchangecnt; ++i)	399	for (i = 0; i < fdchangecnt; ++i)
260	{	400	{
…		…
262	ANFD *anfd = anfds + fd;	402	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	403	struct ev_io *w;
264		404
265	int events = 0;	405	int events = 0;
266		406
267	for (w = anfd->head; w; w = w->next)	407	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	408	events \|= w->events;
269		409
270	anfd->reify = 0;	410	anfd->reify = 0;
271		411
272	if (anfd->events != events)
273	{
274	method_modify (fd, anfd->events, events);	412	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	413	anfd->events = events;
276	}
277	}	414	}
278		415
279	fdchangecnt = 0;	416	fdchangecnt = 0;
280	}	417	}
281		418
282	static void	419	static void
283	fd_change (int fd)	420	fd_change (EV_P_ int fd)
284	{	421	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	422	if (anfds [fd].reify)
286	return;	423	return;
287		424
288	anfds [fd].reify = 1;	425	anfds [fd].reify = 1;
289		426
290	++fdchangecnt;	427	++fdchangecnt;
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
292	fdchanges [fdchangecnt - 1] = fd;	429	fdchanges [fdchangecnt - 1] = fd;
293	}	430	}
294		431
295	static void	432	static void
296	fd_kill (int fd)	433	fd_kill (EV_P_ int fd)
297	{	434	{
298	struct ev_io *w;	435	struct ev_io *w;
299		436
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	437	while ((w = (struct ev_io *)anfds [fd].head))
302	{	438	{
303	ev_io_stop (w);	439	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	440	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	441	}
		442	}
		443
		444	static int
		445	fd_valid (int fd)
		446	{
		447	#ifdef WIN32
		448	return !!win32_get_osfhandle (fd);
		449	#else
		450	return fcntl (fd, F_GETFD) != -1;
		451	#endif
306	}	452	}
307		453
308	/* called on EBADF to verify fds */	454	/* called on EBADF to verify fds */
309	static void	455	static void
310	fd_ebadf (void)	456	fd_ebadf (EV_P)
311	{	457	{
312	int fd;	458	int fd;
313		459
314	for (fd = 0; fd < anfdmax; ++fd)	460	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	461	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	462	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (fd);	463	fd_kill (EV_A_ fd);
318	}	464	}
319		465
320	/* called on ENOMEM in select/poll to kill some fds and retry */	466	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	467	static void
322	fd_enomem (void)	468	fd_enomem (EV_P)
323	{	469	{
324	int fd = anfdmax;	470	int fd;
325		471
326	while (fd--)	472	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	473	if (anfds [fd].events)
328	{	474	{
329	close (fd);
330	fd_kill (fd);	475	fd_kill (EV_A_ fd);
331	return;	476	return;
332	}	477	}
333	}	478	}
334		479
		480	/* usually called after fork if method needs to re-arm all fds from scratch */
		481	static void
		482	fd_rearm_all (EV_P)
		483	{
		484	int fd;
		485
		486	/* this should be highly optimised to not do anything but set a flag */
		487	for (fd = 0; fd < anfdmax; ++fd)
		488	if (anfds [fd].events)
		489	{
		490	anfds [fd].events = 0;
		491	fd_change (EV_A_ fd);
		492	}
		493	}
		494
335	/*****************************************************************************/	495	/*****************************************************************************/
336		496
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	497	static void
344	upheap (WT *timers, int k)	498	upheap (WT *heap, int k)
345	{	499	{
346	WT w = timers [k];	500	WT w = heap [k];
347		501
348	while (k && timers [k >> 1]->at > w->at)	502	while (k && heap [k >> 1]->at > w->at)
349	{	503	{
350	timers [k] = timers [k >> 1];	504	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	505	((W)heap [k])->active = k + 1;
352	k >>= 1;	506	k >>= 1;
353	}	507	}
354		508
355	timers [k] = w;	509	heap [k] = w;
356	timers [k]->active = k + 1;	510	((W)heap [k])->active = k + 1;
357		511
358	}	512	}
359		513
360	static void	514	static void
361	downheap (WT *timers, int N, int k)	515	downheap (WT *heap, int N, int k)
362	{	516	{
363	WT w = timers [k];	517	WT w = heap [k];
364		518
365	while (k < (N >> 1))	519	while (k < (N >> 1))
366	{	520	{
367	int j = k << 1;	521	int j = k << 1;
368		522
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	523	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	524	++j;
371		525
372	if (w->at <= timers [j]->at)	526	if (w->at <= heap [j]->at)
373	break;	527	break;
374		528
375	timers [k] = timers [j];	529	heap [k] = heap [j];
376	timers [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
377	k = j;	531	k = j;
378	}	532	}
379		533
380	timers [k] = w;	534	heap [k] = w;
381	timers [k]->active = k + 1;	535	((W)heap [k])->active = k + 1;
		536	}
		537
		538	inline void
		539	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		540	{
		541	ev_tstamp old_at = heap [k]->at;
		542	heap [k]->at = at;
		543
		544	if (old_at < at)
		545	downheap (heap, N, k);
		546	else
		547	upheap (heap, k);
382	}	548	}
383		549
384	/*****************************************************************************/	550	/*****************************************************************************/
385		551
386	typedef struct	552	typedef struct
387	{	553	{
388	struct ev_signal *head;	554	WL head;
389	sig_atomic_t volatile gotsig;	555	sig_atomic_t volatile gotsig;
390	} ANSIG;	556	} ANSIG;
391		557
392	static ANSIG *signals;	558	static ANSIG *signals;
393	static int signalmax;	559	static int signalmax;
…		…
409	}	575	}
410		576
411	static void	577	static void
412	sighandler (int signum)	578	sighandler (int signum)
413	{	579	{
		580	#if WIN32
		581	signal (signum, sighandler);
		582	#endif
		583
414	signals [signum - 1].gotsig = 1;	584	signals [signum - 1].gotsig = 1;
415		585
416	if (!gotsig)	586	if (!gotsig)
417	{	587	{
		588	int old_errno = errno;
418	gotsig = 1;	589	gotsig = 1;
		590	#ifdef WIN32
		591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		592	#else
419	write (sigpipe [1], &signum, 1);	593	write (sigpipe [1], &signum, 1);
		594	#endif
		595	errno = old_errno;
420	}	596	}
421	}	597	}
422		598
		599	void
		600	ev_feed_signal_event (EV_P_ int signum)
		601	{
		602	WL w;
		603
		604	#if EV_MULTIPLICITY
		605	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		606	#endif
		607
		608	--signum;
		609
		610	if (signum < 0 \|\| signum >= signalmax)
		611	return;
		612
		613	signals [signum].gotsig = 0;
		614
		615	for (w = signals [signum].head; w; w = w->next)
		616	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		617	}
		618
423	static void	619	static void
424	sigcb (struct ev_io *iow, int revents)	620	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	621	{
426	struct ev_signal *w;
427	int signum;	622	int signum;
428		623
		624	#ifdef WIN32
		625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		626	#else
429	read (sigpipe [0], &revents, 1);	627	read (sigpipe [0], &revents, 1);
		628	#endif
430	gotsig = 0;	629	gotsig = 0;
431		630
432	for (signum = signalmax; signum--; )	631	for (signum = signalmax; signum--; )
433	if (signals [signum].gotsig)	632	if (signals [signum].gotsig)
434	{	633	ev_feed_signal_event (EV_A_ signum + 1);
435	signals [signum].gotsig = 0;
436
437	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);
439	}
440	}	634	}
441		635
442	static void	636	static void
443	siginit (void)	637	siginit (EV_P)
444	{	638	{
445	#ifndef WIN32	639	#ifndef WIN32
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	640	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	641	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448		642
…		…
450	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	644	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	645	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	646	#endif
453		647
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	648	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	649	ev_io_start (EV_A_ &sigev);
		650	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	651	}
457		652
458	/*****************************************************************************/	653	/*****************************************************************************/
459		654
460	static struct ev_idle **idles;
461	static int idlemax, idlecnt;
462
463	static struct ev_prepare **prepares;
464	static int preparemax, preparecnt;
465
466	static struct ev_check **checks;
467	static int checkmax, checkcnt;
468
469	/*****************************************************************************/
470
471	static struct ev_child *childs [PID_HASHSIZE];	655	static struct ev_child *childs [PID_HASHSIZE];
		656
		657	#ifndef WIN32
		658
472	static struct ev_signal childev;	659	static struct ev_signal childev;
473
474	#ifndef WIN32
475		660
476	#ifndef WCONTINUED	661	#ifndef WCONTINUED
477	# define WCONTINUED 0	662	# define WCONTINUED 0
478	#endif	663	#endif
479		664
480	static void	665	static void
481	childcb (struct ev_signal *sw, int revents)	666	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	667	{
483	struct ev_child *w;	668	struct ev_child *w;
		669
		670	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		671	if (w->pid == pid \|\| !w->pid)
		672	{
		673	ev_priority (w) = ev_priority (sw); /* need to do it now */
		674	w->rpid = pid;
		675	w->rstatus = status;
		676	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		677	}
		678	}
		679
		680	static void
		681	childcb (EV_P_ struct ev_signal *sw, int revents)
		682	{
484	int pid, status;	683	int pid, status;
485		684
486	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	685	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
487	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	686	{
488	if (w->pid == pid \|\| !w->pid)	687	/* make sure we are called again until all childs have been reaped */
489	{	688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
490	w->status = status;	689
491	event ((W)w, EV_CHILD);	690	child_reap (EV_A_ sw, pid, pid, status);
492	}	691	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		692	}
493	}	693	}
494		694
495	#endif	695	#endif
496		696
497	/*****************************************************************************/	697	/*****************************************************************************/
…		…
519	ev_version_minor (void)	719	ev_version_minor (void)
520	{	720	{
521	return EV_VERSION_MINOR;	721	return EV_VERSION_MINOR;
522	}	722	}
523		723
524	/* return true if we are running with elevated privileges and ignore env variables */	724	/* return true if we are running with elevated privileges and should ignore env variables */
525	static int	725	static int
526	enable_secure ()	726	enable_secure (void)
527	{	727	{
		728	#ifdef WIN32
		729	return 0;
		730	#else
528	return getuid () != geteuid ()	731	return getuid () != geteuid ()
529	\|\| getgid () != getegid ();	732	\|\| getgid () != getegid ();
		733	#endif
530	}	734	}
531		735
532	int ev_init (int methods)	736	int
		737	ev_method (EV_P)
533	{	738	{
		739	return method;
		740	}
		741
		742	static void
		743	loop_init (EV_P_ int methods)
		744	{
534	if (!ev_method)	745	if (!method)
535	{	746	{
536	#if EV_USE_MONOTONIC	747	#if EV_USE_MONOTONIC
537	{	748	{
538	struct timespec ts;	749	struct timespec ts;
539	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
540	have_monotonic = 1;	751	have_monotonic = 1;
541	}	752	}
542	#endif	753	#endif
543		754
544	ev_now = ev_time ();	755	ev_rt_now = ev_time ();
545	now = get_clock ();	756	mn_now = get_clock ();
546	now_floor = now;	757	now_floor = mn_now;
547	diff = ev_now - now;	758	rtmn_diff = ev_rt_now - mn_now;
548
549	if (pipe (sigpipe))
550	return 0;
551		759
552	if (methods == EVMETHOD_AUTO)	760	if (methods == EVMETHOD_AUTO)
553	if (!enable_secure () && getenv ("LIBEV_METHODS"))	761	if (!enable_secure () && getenv ("LIBEV_METHODS"))
554	methods = atoi (getenv ("LIBEV_METHODS"));	762	methods = atoi (getenv ("LIBEV_METHODS"));
555	else	763	else
556	methods = EVMETHOD_ANY;	764	methods = EVMETHOD_ANY;
557		765
558	ev_method = 0;	766	method = 0;
		767	#if EV_USE_WIN32
		768	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		769	#endif
559	#if EV_USE_KQUEUE	770	#if EV_USE_KQUEUE
560	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
561	#endif	772	#endif
562	#if EV_USE_EPOLL	773	#if EV_USE_EPOLL
563	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
564	#endif	775	#endif
565	#if EV_USE_POLL	776	#if EV_USE_POLL
566	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
567	#endif	778	#endif
568	#if EV_USE_SELECT	779	#if EV_USE_SELECT
569	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
570	#endif	781	#endif
571		782
		783	ev_init (&sigev, sigcb);
		784	ev_set_priority (&sigev, EV_MAXPRI);
		785	}
		786	}
		787
		788	void
		789	loop_destroy (EV_P)
		790	{
		791	int i;
		792
		793	#if EV_USE_WIN32
		794	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		795	#endif
		796	#if EV_USE_KQUEUE
		797	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		798	#endif
		799	#if EV_USE_EPOLL
		800	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		801	#endif
		802	#if EV_USE_POLL
		803	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		804	#endif
		805	#if EV_USE_SELECT
		806	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		807	#endif
		808
		809	for (i = NUMPRI; i--; )
		810	array_free (pending, [i]);
		811
		812	/* have to use the microsoft-never-gets-it-right macro */
		813	array_free_microshit (fdchange);
		814	array_free_microshit (timer);
		815	#if EV_PERIODICS
		816	array_free_microshit (periodic);
		817	#endif
		818	array_free_microshit (idle);
		819	array_free_microshit (prepare);
		820	array_free_microshit (check);
		821
		822	method = 0;
		823	}
		824
		825	static void
		826	loop_fork (EV_P)
		827	{
		828	#if EV_USE_EPOLL
		829	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		830	#endif
		831	#if EV_USE_KQUEUE
		832	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		833	#endif
		834
		835	if (ev_is_active (&sigev))
		836	{
		837	/* default loop */
		838
		839	ev_ref (EV_A);
		840	ev_io_stop (EV_A_ &sigev);
		841	close (sigpipe [0]);
		842	close (sigpipe [1]);
		843
		844	while (pipe (sigpipe))
		845	syserr ("(libev) error creating pipe");
		846
		847	siginit (EV_A);
		848	}
		849
		850	postfork = 0;
		851	}
		852
		853	#if EV_MULTIPLICITY
		854	struct ev_loop *
		855	ev_loop_new (int methods)
		856	{
		857	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		858
		859	memset (loop, 0, sizeof (struct ev_loop));
		860
		861	loop_init (EV_A_ methods);
		862
		863	if (ev_method (EV_A))
		864	return loop;
		865
		866	return 0;
		867	}
		868
		869	void
		870	ev_loop_destroy (EV_P)
		871	{
		872	loop_destroy (EV_A);
		873	ev_free (loop);
		874	}
		875
		876	void
		877	ev_loop_fork (EV_P)
		878	{
		879	postfork = 1;
		880	}
		881
		882	#endif
		883
		884	#if EV_MULTIPLICITY
		885	struct ev_loop *
		886	#else
		887	int
		888	#endif
		889	ev_default_loop (int methods)
		890	{
		891	if (sigpipe [0] == sigpipe [1])
		892	if (pipe (sigpipe))
		893	return 0;
		894
		895	if (!default_loop)
		896	{
		897	#if EV_MULTIPLICITY
		898	struct ev_loop *loop = default_loop = &default_loop_struct;
		899	#else
		900	default_loop = 1;
		901	#endif
		902
		903	loop_init (EV_A_ methods);
		904
572	if (ev_method)	905	if (ev_method (EV_A))
573	{	906	{
574	ev_watcher_init (&sigev, sigcb);
575	siginit ();	907	siginit (EV_A);
576		908
577	#ifndef WIN32	909	#ifndef WIN32
578	ev_signal_init (&childev, childcb, SIGCHLD);	910	ev_signal_init (&childev, childcb, SIGCHLD);
		911	ev_set_priority (&childev, EV_MAXPRI);
579	ev_signal_start (&childev);	912	ev_signal_start (EV_A_ &childev);
		913	ev_unref (EV_A); /* child watcher should not keep loop alive */
580	#endif	914	#endif
581	}	915	}
		916	else
		917	default_loop = 0;
582	}	918	}
583		919
584	return ev_method;	920	return default_loop;
		921	}
		922
		923	void
		924	ev_default_destroy (void)
		925	{
		926	#if EV_MULTIPLICITY
		927	struct ev_loop *loop = default_loop;
		928	#endif
		929
		930	#ifndef WIN32
		931	ev_ref (EV_A); /* child watcher */
		932	ev_signal_stop (EV_A_ &childev);
		933	#endif
		934
		935	ev_ref (EV_A); /* signal watcher */
		936	ev_io_stop (EV_A_ &sigev);
		937
		938	close (sigpipe [0]); sigpipe [0] = 0;
		939	close (sigpipe [1]); sigpipe [1] = 0;
		940
		941	loop_destroy (EV_A);
		942	}
		943
		944	void
		945	ev_default_fork (void)
		946	{
		947	#if EV_MULTIPLICITY
		948	struct ev_loop *loop = default_loop;
		949	#endif
		950
		951	if (method)
		952	postfork = 1;
585	}	953	}
586		954
587	/*****************************************************************************/	955	/*****************************************************************************/
588		956
589	void
590	ev_fork_prepare (void)
591	{
592	/* nop */
593	}
594
595	void
596	ev_fork_parent (void)
597	{
598	/* nop */
599	}
600
601	void
602	ev_fork_child (void)
603	{
604	#if EV_USE_EPOLL
605	if (ev_method == EVMETHOD_EPOLL)
606	epoll_postfork_child ();
607	#endif
608
609	ev_io_stop (&sigev);
610	close (sigpipe [0]);
611	close (sigpipe [1]);
612	pipe (sigpipe);
613	siginit ();
614	}
615
616	/*****************************************************************************/
617
618	static void	957	static int
		958	any_pending (EV_P)
		959	{
		960	int pri;
		961
		962	for (pri = NUMPRI; pri--; )
		963	if (pendingcnt [pri])
		964	return 1;
		965
		966	return 0;
		967	}
		968
		969	static void
619	call_pending (void)	970	call_pending (EV_P)
620	{	971	{
621	int pri;	972	int pri;
622		973
623	for (pri = NUMPRI; pri--; )	974	for (pri = NUMPRI; pri--; )
624	while (pendingcnt [pri])	975	while (pendingcnt [pri])
…		…
626	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
627		978
628	if (p->w)	979	if (p->w)
629	{	980	{
630	p->w->pending = 0;	981	p->w->pending = 0;
631	p->w->cb (p->w, p->events);	982	EV_CB_INVOKE (p->w, p->events);
632	}	983	}
633	}	984	}
634	}	985	}
635		986
636	static void	987	static void
637	timers_reify (void)	988	timers_reify (EV_P)
638	{	989	{
639	while (timercnt && timers [0]->at <= now)	990	while (timercnt && ((WT)timers [0])->at <= mn_now)
640	{	991	{
641	struct ev_timer *w = timers [0];	992	struct ev_timer *w = timers [0];
		993
		994	assert (("inactive timer on timer heap detected", ev_is_active (w)));
642		995
643	/* first reschedule or stop timer */	996	/* first reschedule or stop timer */
644	if (w->repeat)	997	if (w->repeat)
645	{	998	{
646	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	999	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1000
647	w->at = now + w->repeat;	1001	((WT)w)->at += w->repeat;
		1002	if (((WT)w)->at < mn_now)
		1003	((WT)w)->at = mn_now;
		1004
648	downheap ((WT *)timers, timercnt, 0);	1005	downheap ((WT *)timers, timercnt, 0);
649	}	1006	}
650	else	1007	else
651	ev_timer_stop (w); /* nonrepeating: stop timer */	1008	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
652		1009
653	event ((W)w, EV_TIMEOUT);	1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
654	}	1011	}
655	}	1012	}
656		1013
		1014	#if EV_PERIODICS
657	static void	1015	static void
658	periodics_reify (void)	1016	periodics_reify (EV_P)
659	{	1017	{
660	while (periodiccnt && periodics [0]->at <= ev_now)	1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
661	{	1019	{
662	struct ev_periodic *w = periodics [0];	1020	struct ev_periodic *w = periodics [0];
663		1021
		1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1023
664	/* first reschedule or stop timer */	1024	/* first reschedule or stop timer */
665	if (w->interval)	1025	if (w->reschedule_cb)
666	{	1026	{
		1027	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1028
		1029	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1030	downheap ((WT *)periodics, periodiccnt, 0);
		1031	}
		1032	else if (w->interval)
		1033	{
667	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1034	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
668	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1035	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
669	downheap ((WT *)periodics, periodiccnt, 0);	1036	downheap ((WT *)periodics, periodiccnt, 0);
670	}	1037	}
671	else	1038	else
672	ev_periodic_stop (w); /* nonrepeating: stop timer */	1039	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
673		1040
674	event ((W)w, EV_PERIODIC);	1041	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
675	}	1042	}
676	}	1043	}
677		1044
678	static void	1045	static void
679	periodics_reschedule (ev_tstamp diff)	1046	periodics_reschedule (EV_P)
680	{	1047	{
681	int i;	1048	int i;
682		1049
683	/* adjust periodics after time jump */	1050	/* adjust periodics after time jump */
684	for (i = 0; i < periodiccnt; ++i)	1051	for (i = 0; i < periodiccnt; ++i)
685	{	1052	{
686	struct ev_periodic *w = periodics [i];	1053	struct ev_periodic *w = periodics [i];
687		1054
		1055	if (w->reschedule_cb)
		1056	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
688	if (w->interval)	1057	else if (w->interval)
689	{
690	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1058	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
691
692	if (fabs (diff) >= 1e-4)
693	{
694	ev_periodic_stop (w);
695	ev_periodic_start (w);
696
697	i = 0; /* restart loop, inefficient, but time jumps should be rare */
698	}
699	}
700	}	1059	}
701	}
702		1060
703	static int	1061	/* now rebuild the heap */
		1062	for (i = periodiccnt >> 1; i--; )
		1063	downheap ((WT *)periodics, periodiccnt, i);
		1064	}
		1065	#endif
		1066
		1067	inline int
704	time_update_monotonic (void)	1068	time_update_monotonic (EV_P)
705	{	1069	{
706	now = get_clock ();	1070	mn_now = get_clock ();
707		1071
708	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1072	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
709	{	1073	{
710	ev_now = now + diff;	1074	ev_rt_now = rtmn_diff + mn_now;
711	return 0;	1075	return 0;
712	}	1076	}
713	else	1077	else
714	{	1078	{
715	now_floor = now;	1079	now_floor = mn_now;
716	ev_now = ev_time ();	1080	ev_rt_now = ev_time ();
717	return 1;	1081	return 1;
718	}	1082	}
719	}	1083	}
720		1084
721	static void	1085	static void
722	time_update (void)	1086	time_update (EV_P)
723	{	1087	{
724	int i;	1088	int i;
725		1089
726	#if EV_USE_MONOTONIC	1090	#if EV_USE_MONOTONIC
727	if (expect_true (have_monotonic))	1091	if (expect_true (have_monotonic))
728	{	1092	{
729	if (time_update_monotonic ())	1093	if (time_update_monotonic (EV_A))
730	{	1094	{
731	ev_tstamp odiff = diff;	1095	ev_tstamp odiff = rtmn_diff;
732		1096
733	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1097	for (i = 4; --i; ) /* loop a few times, before making important decisions */
734	{	1098	{
735	diff = ev_now - now;	1099	rtmn_diff = ev_rt_now - mn_now;
736		1100
737	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1101	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
738	return; /* all is well */	1102	return; /* all is well */
739		1103
740	ev_now = ev_time ();	1104	ev_rt_now = ev_time ();
741	now = get_clock ();	1105	mn_now = get_clock ();
742	now_floor = now;	1106	now_floor = mn_now;
743	}	1107	}
744		1108
		1109	# if EV_PERIODICS
745	periodics_reschedule (diff - odiff);	1110	periodics_reschedule (EV_A);
		1111	# endif
746	/* no timer adjustment, as the monotonic clock doesn't jump */	1112	/* no timer adjustment, as the monotonic clock doesn't jump */
		1113	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
747	}	1114	}
748	}	1115	}
749	else	1116	else
750	#endif	1117	#endif
751	{	1118	{
752	ev_now = ev_time ();	1119	ev_rt_now = ev_time ();
753		1120
754	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1121	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
755	{	1122	{
		1123	#if EV_PERIODICS
756	periodics_reschedule (ev_now - now);	1124	periodics_reschedule (EV_A);
		1125	#endif
757		1126
758	/* adjust timers. this is easy, as the offset is the same for all */	1127	/* adjust timers. this is easy, as the offset is the same for all */
759	for (i = 0; i < timercnt; ++i)	1128	for (i = 0; i < timercnt; ++i)
760	timers [i]->at += diff;	1129	((WT)timers [i])->at += ev_rt_now - mn_now;
761	}	1130	}
762		1131
763	now = ev_now;	1132	mn_now = ev_rt_now;
764	}	1133	}
765	}	1134	}
766		1135
767	int ev_loop_done;	1136	void
		1137	ev_ref (EV_P)
		1138	{
		1139	++activecnt;
		1140	}
768		1141
		1142	void
		1143	ev_unref (EV_P)
		1144	{
		1145	--activecnt;
		1146	}
		1147
		1148	static int loop_done;
		1149
		1150	void
769	void ev_loop (int flags)	1151	ev_loop (EV_P_ int flags)
770	{	1152	{
771	double block;	1153	double block;
772	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1154	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
773		1155
774	do	1156	do
775	{	1157	{
776	/* queue check watchers (and execute them) */	1158	/* queue check watchers (and execute them) */
777	if (expect_false (preparecnt))	1159	if (expect_false (preparecnt))
778	{	1160	{
779	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
780	call_pending ();	1162	call_pending (EV_A);
781	}	1163	}
782		1164
		1165	/* we might have forked, so reify kernel state if necessary */
		1166	if (expect_false (postfork))
		1167	loop_fork (EV_A);
		1168
783	/* update fd-related kernel structures */	1169	/* update fd-related kernel structures */
784	fd_reify ();	1170	fd_reify (EV_A);
785		1171
786	/* calculate blocking time */	1172	/* calculate blocking time */
787		1173
788	/* we only need this for !monotonic clockor timers, but as we basically	1174	/* we only need this for !monotonic clock or timers, but as we basically
789	always have timers, we just calculate it always */	1175	always have timers, we just calculate it always */
790	#if EV_USE_MONOTONIC	1176	#if EV_USE_MONOTONIC
791	if (expect_true (have_monotonic))	1177	if (expect_true (have_monotonic))
792	time_update_monotonic ();	1178	time_update_monotonic (EV_A);
793	else	1179	else
794	#endif	1180	#endif
795	{	1181	{
796	ev_now = ev_time ();	1182	ev_rt_now = ev_time ();
797	now = ev_now;	1183	mn_now = ev_rt_now;
798	}	1184	}
799		1185
800	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1186	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
801	block = 0.;	1187	block = 0.;
802	else	1188	else
803	{	1189	{
804	block = MAX_BLOCKTIME;	1190	block = MAX_BLOCKTIME;
805		1191
806	if (timercnt)	1192	if (timercnt)
807	{	1193	{
808	ev_tstamp to = timers [0]->at - now + method_fudge;	1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
809	if (block > to) block = to;	1195	if (block > to) block = to;
810	}	1196	}
811		1197
		1198	#if EV_PERIODICS
812	if (periodiccnt)	1199	if (periodiccnt)
813	{	1200	{
814	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
815	if (block > to) block = to;	1202	if (block > to) block = to;
816	}	1203	}
		1204	#endif
817		1205
818	if (block < 0.) block = 0.;	1206	if (block < 0.) block = 0.;
819	}	1207	}
820		1208
821	method_poll (block);	1209	method_poll (EV_A_ block);
822		1210
823	/* update ev_now, do magic */	1211	/* update ev_rt_now, do magic */
824	time_update ();	1212	time_update (EV_A);
825		1213
826	/* queue pending timers and reschedule them */	1214	/* queue pending timers and reschedule them */
827	timers_reify (); /* relative timers called last */	1215	timers_reify (EV_A); /* relative timers called last */
		1216	#if EV_PERIODICS
828	periodics_reify (); /* absolute timers called first */	1217	periodics_reify (EV_A); /* absolute timers called first */
		1218	#endif
829		1219
830	/* queue idle watchers unless io or timers are pending */	1220	/* queue idle watchers unless io or timers are pending */
831	if (!pendingcnt)	1221	if (idlecnt && !any_pending (EV_A))
832	queue_events ((W *)idles, idlecnt, EV_IDLE);	1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
833		1223
834	/* queue check watchers, to be executed first */	1224	/* queue check watchers, to be executed first */
835	if (checkcnt)	1225	if (checkcnt)
836	queue_events ((W *)checks, checkcnt, EV_CHECK);	1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
837		1227
838	call_pending ();	1228	call_pending (EV_A);
839	}	1229	}
840	while (!ev_loop_done);	1230	while (activecnt && !loop_done);
841		1231
842	if (ev_loop_done != 2)	1232	if (loop_done != 2)
843	ev_loop_done = 0;	1233	loop_done = 0;
		1234	}
		1235
		1236	void
		1237	ev_unloop (EV_P_ int how)
		1238	{
		1239	loop_done = how;
844	}	1240	}
845		1241
846	/*****************************************************************************/	1242	/*****************************************************************************/
847		1243
848	static void	1244	inline void
849	wlist_add (WL *head, WL elem)	1245	wlist_add (WL *head, WL elem)
850	{	1246	{
851	elem->next = *head;	1247	elem->next = *head;
852	*head = elem;	1248	*head = elem;
853	}	1249	}
854		1250
855	static void	1251	inline void
856	wlist_del (WL *head, WL elem)	1252	wlist_del (WL *head, WL elem)
857	{	1253	{
858	while (*head)	1254	while (*head)
859	{	1255	{
860	if (*head == elem)	1256	if (*head == elem)
…		…
865		1261
866	head = &(*head)->next;	1262	head = &(*head)->next;
867	}	1263	}
868	}	1264	}
869		1265
870	static void	1266	inline void
871	ev_clear_pending (W w)	1267	ev_clear_pending (EV_P_ W w)
872	{	1268	{
873	if (w->pending)	1269	if (w->pending)
874	{	1270	{
875	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1271	pendings [ABSPRI (w)][w->pending - 1].w = 0;
876	w->pending = 0;	1272	w->pending = 0;
877	}	1273	}
878	}	1274	}
879		1275
880	static void	1276	inline void
881	ev_start (W w, int active)	1277	ev_start (EV_P_ W w, int active)
882	{	1278	{
883	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1279	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
884	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1280	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
885		1281
886	w->active = active;	1282	w->active = active;
		1283	ev_ref (EV_A);
887	}	1284	}
888		1285
889	static void	1286	inline void
890	ev_stop (W w)	1287	ev_stop (EV_P_ W w)
891	{	1288	{
		1289	ev_unref (EV_A);
892	w->active = 0;	1290	w->active = 0;
893	}	1291	}
894		1292
895	/*****************************************************************************/	1293	/*****************************************************************************/
896		1294
897	void	1295	void
898	ev_io_start (struct ev_io *w)	1296	ev_io_start (EV_P_ struct ev_io *w)
899	{	1297	{
900	int fd = w->fd;	1298	int fd = w->fd;
901		1299
902	if (ev_is_active (w))	1300	if (ev_is_active (w))
903	return;	1301	return;
904		1302
905	assert (("ev_io_start called with negative fd", fd >= 0));	1303	assert (("ev_io_start called with negative fd", fd >= 0));
906		1304
907	ev_start ((W)w, 1);	1305	ev_start (EV_A_ (W)w, 1);
908	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1306	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
909	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1307	wlist_add ((WL *)&anfds[fd].head, (WL)w);
910		1308
911	fd_change (fd);	1309	fd_change (EV_A_ fd);
912	}	1310	}
913		1311
914	void	1312	void
915	ev_io_stop (struct ev_io *w)	1313	ev_io_stop (EV_P_ struct ev_io *w)
916	{	1314	{
917	ev_clear_pending ((W)w);	1315	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
919	return;	1317	return;
920		1318
		1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1320
921	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
922	ev_stop ((W)w);	1322	ev_stop (EV_A_ (W)w);
923		1323
924	fd_change (w->fd);	1324	fd_change (EV_A_ w->fd);
925	}	1325	}
926		1326
927	void	1327	void
928	ev_timer_start (struct ev_timer *w)	1328	ev_timer_start (EV_P_ struct ev_timer *w)
929	{	1329	{
930	if (ev_is_active (w))	1330	if (ev_is_active (w))
931	return;	1331	return;
932		1332
933	w->at += now;	1333	((WT)w)->at += mn_now;
934		1334
935	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1335	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
936		1336
937	ev_start ((W)w, ++timercnt);	1337	ev_start (EV_A_ (W)w, ++timercnt);
938	array_needsize (timers, timermax, timercnt, );	1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
939	timers [timercnt - 1] = w;	1339	timers [timercnt - 1] = w;
940	upheap ((WT *)timers, timercnt - 1);	1340	upheap ((WT *)timers, timercnt - 1);
941	}
942		1341
		1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1343	}
		1344
943	void	1345	void
944	ev_timer_stop (struct ev_timer *w)	1346	ev_timer_stop (EV_P_ struct ev_timer *w)
945	{	1347	{
946	ev_clear_pending ((W)w);	1348	ev_clear_pending (EV_A_ (W)w);
947	if (!ev_is_active (w))	1349	if (!ev_is_active (w))
948	return;	1350	return;
949		1351
		1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1353
950	if (w->active < timercnt--)	1354	if (((W)w)->active < timercnt--)
951	{	1355	{
952	timers [w->active - 1] = timers [timercnt];	1356	timers [((W)w)->active - 1] = timers [timercnt];
953	downheap ((WT *)timers, timercnt, w->active - 1);	1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
954	}	1358	}
955		1359
956	w->at = w->repeat;	1360	((WT)w)->at -= mn_now;
957		1361
958	ev_stop ((W)w);	1362	ev_stop (EV_A_ (W)w);
959	}	1363	}
960		1364
961	void	1365	void
962	ev_timer_again (struct ev_timer *w)	1366	ev_timer_again (EV_P_ struct ev_timer *w)
963	{	1367	{
964	if (ev_is_active (w))	1368	if (ev_is_active (w))
965	{	1369	{
966	if (w->repeat)	1370	if (w->repeat)
967	{
968	w->at = now + w->repeat;
969	downheap ((WT *)timers, timercnt, w->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
970	}
971	else	1372	else
972	ev_timer_stop (w);	1373	ev_timer_stop (EV_A_ w);
973	}	1374	}
974	else if (w->repeat)	1375	else if (w->repeat)
975	ev_timer_start (w);	1376	ev_timer_start (EV_A_ w);
976	}	1377	}
977		1378
		1379	#if EV_PERIODICS
978	void	1380	void
979	ev_periodic_start (struct ev_periodic *w)	1381	ev_periodic_start (EV_P_ struct ev_periodic *w)
980	{	1382	{
981	if (ev_is_active (w))	1383	if (ev_is_active (w))
982	return;	1384	return;
983		1385
		1386	if (w->reschedule_cb)
		1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1388	else if (w->interval)
		1389	{
984	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1390	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
985
986	/* this formula differs from the one in periodic_reify because we do not always round up */	1391	/* this formula differs from the one in periodic_reify because we do not always round up */
987	if (w->interval)
988	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1392	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1393	}
989		1394
990	ev_start ((W)w, ++periodiccnt);	1395	ev_start (EV_A_ (W)w, ++periodiccnt);
991	array_needsize (periodics, periodicmax, periodiccnt, );	1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
992	periodics [periodiccnt - 1] = w;	1397	periodics [periodiccnt - 1] = w;
993	upheap ((WT *)periodics, periodiccnt - 1);	1398	upheap ((WT *)periodics, periodiccnt - 1);
994	}
995		1399
		1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1401	}
		1402
996	void	1403	void
997	ev_periodic_stop (struct ev_periodic *w)	1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)
998	{	1405	{
999	ev_clear_pending ((W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1000	if (!ev_is_active (w))	1407	if (!ev_is_active (w))
1001	return;	1408	return;
1002		1409
		1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1411
1003	if (w->active < periodiccnt--)	1412	if (((W)w)->active < periodiccnt--)
1004	{	1413	{
1005	periodics [w->active - 1] = periodics [periodiccnt];	1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1006	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1007	}	1416	}
1008		1417
1009	ev_stop ((W)w);	1418	ev_stop (EV_A_ (W)w);
1010	}	1419	}
1011		1420
1012	void	1421	void
		1422	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1423	{
		1424	/* TODO: use adjustheap and recalculation */
		1425	ev_periodic_stop (EV_A_ w);
		1426	ev_periodic_start (EV_A_ w);
		1427	}
		1428	#endif
		1429
		1430	void
1013	ev_signal_start (struct ev_signal *w)	1431	ev_idle_start (EV_P_ struct ev_idle *w)
1014	{	1432	{
1015	if (ev_is_active (w))	1433	if (ev_is_active (w))
1016	return;	1434	return;
1017		1435
		1436	ev_start (EV_A_ (W)w, ++idlecnt);
		1437	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1438	idles [idlecnt - 1] = w;
		1439	}
		1440
		1441	void
		1442	ev_idle_stop (EV_P_ struct ev_idle *w)
		1443	{
		1444	ev_clear_pending (EV_A_ (W)w);
		1445	if (ev_is_active (w))
		1446	return;
		1447
		1448	idles [((W)w)->active - 1] = idles [--idlecnt];
		1449	ev_stop (EV_A_ (W)w);
		1450	}
		1451
		1452	void
		1453	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1454	{
		1455	if (ev_is_active (w))
		1456	return;
		1457
		1458	ev_start (EV_A_ (W)w, ++preparecnt);
		1459	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1460	prepares [preparecnt - 1] = w;
		1461	}
		1462
		1463	void
		1464	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1465	{
		1466	ev_clear_pending (EV_A_ (W)w);
		1467	if (ev_is_active (w))
		1468	return;
		1469
		1470	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1471	ev_stop (EV_A_ (W)w);
		1472	}
		1473
		1474	void
		1475	ev_check_start (EV_P_ struct ev_check *w)
		1476	{
		1477	if (ev_is_active (w))
		1478	return;
		1479
		1480	ev_start (EV_A_ (W)w, ++checkcnt);
		1481	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1482	checks [checkcnt - 1] = w;
		1483	}
		1484
		1485	void
		1486	ev_check_stop (EV_P_ struct ev_check *w)
		1487	{
		1488	ev_clear_pending (EV_A_ (W)w);
		1489	if (!ev_is_active (w))
		1490	return;
		1491
		1492	checks [((W)w)->active - 1] = checks [--checkcnt];
		1493	ev_stop (EV_A_ (W)w);
		1494	}
		1495
		1496	#ifndef SA_RESTART
		1497	# define SA_RESTART 0
		1498	#endif
		1499
		1500	void
		1501	ev_signal_start (EV_P_ struct ev_signal *w)
		1502	{
		1503	#if EV_MULTIPLICITY
		1504	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1505	#endif
		1506	if (ev_is_active (w))
		1507	return;
		1508
1018	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1509	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1019		1510
1020	ev_start ((W)w, 1);	1511	ev_start (EV_A_ (W)w, 1);
1021	array_needsize (signals, signalmax, w->signum, signals_init);	1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1022	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1023		1514
1024	if (!w->next)	1515	if (!((WL)w)->next)
1025	{	1516	{
		1517	#if WIN32
		1518	signal (w->signum, sighandler);
		1519	#else
1026	struct sigaction sa;	1520	struct sigaction sa;
1027	sa.sa_handler = sighandler;	1521	sa.sa_handler = sighandler;
1028	sigfillset (&sa.sa_mask);	1522	sigfillset (&sa.sa_mask);
1029	sa.sa_flags = 0;	1523	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1030	sigaction (w->signum, &sa, 0);	1524	sigaction (w->signum, &sa, 0);
		1525	#endif
1031	}	1526	}
1032	}	1527	}
1033		1528
1034	void	1529	void
1035	ev_signal_stop (struct ev_signal *w)	1530	ev_signal_stop (EV_P_ struct ev_signal *w)
1036	{	1531	{
1037	ev_clear_pending ((W)w);	1532	ev_clear_pending (EV_A_ (W)w);
1038	if (!ev_is_active (w))	1533	if (!ev_is_active (w))
1039	return;	1534	return;
1040		1535
1041	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1536	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1042	ev_stop ((W)w);	1537	ev_stop (EV_A_ (W)w);
1043		1538
1044	if (!signals [w->signum - 1].head)	1539	if (!signals [w->signum - 1].head)
1045	signal (w->signum, SIG_DFL);	1540	signal (w->signum, SIG_DFL);
1046	}	1541	}
1047		1542
1048	void	1543	void
1049	ev_idle_start (struct ev_idle *w)	1544	ev_child_start (EV_P_ struct ev_child *w)
1050	{	1545	{
		1546	#if EV_MULTIPLICITY
		1547	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1548	#endif
1051	if (ev_is_active (w))	1549	if (ev_is_active (w))
1052	return;	1550	return;
1053		1551
1054	ev_start ((W)w, ++idlecnt);
1055	array_needsize (idles, idlemax, idlecnt, );
1056	idles [idlecnt - 1] = w;
1057	}
1058
1059	void
1060	ev_idle_stop (struct ev_idle *w)
1061	{
1062	ev_clear_pending ((W)w);
1063	if (ev_is_active (w))
1064	return;
1065
1066	idles [w->active - 1] = idles [--idlecnt];
1067	ev_stop ((W)w);
1068	}
1069
1070	void
1071	ev_prepare_start (struct ev_prepare *w)
1072	{
1073	if (ev_is_active (w))
1074	return;
1075
1076	ev_start ((W)w, ++preparecnt);
1077	array_needsize (prepares, preparemax, preparecnt, );
1078	prepares [preparecnt - 1] = w;
1079	}
1080
1081	void
1082	ev_prepare_stop (struct ev_prepare *w)
1083	{
1084	ev_clear_pending ((W)w);
1085	if (ev_is_active (w))
1086	return;
1087
1088	prepares [w->active - 1] = prepares [--preparecnt];
1089	ev_stop ((W)w);
1090	}
1091
1092	void
1093	ev_check_start (struct ev_check *w)
1094	{
1095	if (ev_is_active (w))
1096	return;
1097
1098	ev_start ((W)w, ++checkcnt);
1099	array_needsize (checks, checkmax, checkcnt, );
1100	checks [checkcnt - 1] = w;
1101	}
1102
1103	void
1104	ev_check_stop (struct ev_check *w)
1105	{
1106	ev_clear_pending ((W)w);
1107	if (ev_is_active (w))
1108	return;
1109
1110	checks [w->active - 1] = checks [--checkcnt];
1111	ev_stop ((W)w);
1112	}
1113
1114	void
1115	ev_child_start (struct ev_child *w)
1116	{
1117	if (ev_is_active (w))
1118	return;
1119
1120	ev_start ((W)w, 1);	1552	ev_start (EV_A_ (W)w, 1);
1121	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1553	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	}	1554	}
1123		1555
1124	void	1556	void
1125	ev_child_stop (struct ev_child *w)	1557	ev_child_stop (EV_P_ struct ev_child *w)
1126	{	1558	{
1127	ev_clear_pending ((W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1128	if (ev_is_active (w))	1560	if (!ev_is_active (w))
1129	return;	1561	return;
1130		1562
1131	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1132	ev_stop ((W)w);	1564	ev_stop (EV_A_ (W)w);
1133	}	1565	}
1134		1566
1135	/*****************************************************************************/	1567	/*****************************************************************************/
1136		1568
1137	struct ev_once	1569	struct ev_once
…		…
1141	void (cb)(int revents, void arg);	1573	void (cb)(int revents, void arg);
1142	void *arg;	1574	void *arg;
1143	};	1575	};
1144		1576
1145	static void	1577	static void
1146	once_cb (struct ev_once *once, int revents)	1578	once_cb (EV_P_ struct ev_once *once, int revents)
1147	{	1579	{
1148	void (cb)(int revents, void arg) = once->cb;	1580	void (cb)(int revents, void arg) = once->cb;
1149	void *arg = once->arg;	1581	void *arg = once->arg;
1150		1582
1151	ev_io_stop (&once->io);	1583	ev_io_stop (EV_A_ &once->io);
1152	ev_timer_stop (&once->to);	1584	ev_timer_stop (EV_A_ &once->to);
1153	free (once);	1585	ev_free (once);
1154		1586
1155	cb (revents, arg);	1587	cb (revents, arg);
1156	}	1588	}
1157		1589
1158	static void	1590	static void
1159	once_cb_io (struct ev_io *w, int revents)	1591	once_cb_io (EV_P_ struct ev_io *w, int revents)
1160	{	1592	{
1161	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1593	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1162	}	1594	}
1163		1595
1164	static void	1596	static void
1165	once_cb_to (struct ev_timer *w, int revents)	1597	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1166	{	1598	{
1167	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1599	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1168	}	1600	}
1169		1601
1170	void	1602	void
1171	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1603	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1172	{	1604	{
1173	struct ev_once *once = malloc (sizeof (struct ev_once));	1605	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1174		1606
1175	if (!once)	1607	if (!once)
1176	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1177	else	1609	else
1178	{	1610	{
1179	once->cb = cb;	1611	once->cb = cb;
1180	once->arg = arg;	1612	once->arg = arg;
1181		1613
1182	ev_watcher_init (&once->io, once_cb_io);	1614	ev_init (&once->io, once_cb_io);
1183	if (fd >= 0)	1615	if (fd >= 0)
1184	{	1616	{
1185	ev_io_set (&once->io, fd, events);	1617	ev_io_set (&once->io, fd, events);
1186	ev_io_start (&once->io);	1618	ev_io_start (EV_A_ &once->io);
1187	}	1619	}
1188		1620
1189	ev_watcher_init (&once->to, once_cb_to);	1621	ev_init (&once->to, once_cb_to);
1190	if (timeout >= 0.)	1622	if (timeout >= 0.)
1191	{	1623	{
1192	ev_timer_set (&once->to, timeout, 0.);	1624	ev_timer_set (&once->to, timeout, 0.);
1193	ev_timer_start (&once->to);	1625	ev_timer_start (EV_A_ &once->to);
1194	}	1626	}
1195	}	1627	}
1196	}	1628	}
1197		1629
1198	/*****************************************************************************/	1630	#ifdef __cplusplus
1199
1200	#if 0
1201
1202	struct ev_io wio;
1203
1204	static void
1205	sin_cb (struct ev_io *w, int revents)
1206	{
1207	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1208	}	1631	}
1209
1210	static void
1211	ocb (struct ev_timer *w, int revents)
1212	{
1213	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1214	ev_timer_stop (w);
1215	ev_timer_start (w);
1216	}
1217
1218	static void
1219	scb (struct ev_signal *w, int revents)
1220	{
1221	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1222	ev_io_stop (&wio);
1223	ev_io_start (&wio);
1224	}
1225
1226	static void
1227	gcb (struct ev_signal *w, int revents)
1228	{
1229	fprintf (stderr, "generic %x\n", revents);
1230
1231	}
1232
1233	int main (void)
1234	{
1235	ev_init (0);
1236
1237	ev_io_init (&wio, sin_cb, 0, EV_READ);
1238	ev_io_start (&wio);
1239
1240	struct ev_timer t[10000];
1241
1242	#if 0
1243	int i;
1244	for (i = 0; i < 10000; ++i)
1245	{
1246	struct ev_timer *w = t + i;
1247	ev_watcher_init (w, ocb, i);
1248	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1249	ev_timer_start (w);
1250	if (drand48 () < 0.5)
1251	ev_timer_stop (w);
1252	}
1253	#endif	1632	#endif
1254		1633
1255	struct ev_timer t1;
1256	ev_timer_init (&t1, ocb, 5, 10);
1257	ev_timer_start (&t1);
1258
1259	struct ev_signal sig;
1260	ev_signal_init (&sig, scb, SIGQUIT);
1261	ev_signal_start (&sig);
1262
1263	struct ev_check cw;
1264	ev_check_init (&cw, gcb);
1265	ev_check_start (&cw);
1266
1267	struct ev_idle iw;
1268	ev_idle_init (&iw, gcb);
1269	ev_idle_start (&iw);
1270
1271	ev_loop (0);
1272
1273	return 0;
1274	}
1275
1276	#endif
1277
1278
1279
1280

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Comparing libev/ev.c (file contents): Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs. Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC