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

Comparing libev/ev.c (file contents):
Revision 1.42 by root, Fri Nov 2 20:05:05 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>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	76	#include <time.h>
50		77
		78	#include <signal.h>
		79
		80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
		83	# include <sys/wait.h>
		84	#endif
51	/**/	85	/**/
52		86
53	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
55	#endif	89	#endif
…		…
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	96	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	97	#endif
64		98
65	#ifndef EV_USE_EPOLL	99	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
		101	#endif
		102
		103	#ifndef EV_USE_KQUEUE
		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
67	#endif	115	#endif
68		116
69	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
71	#endif	119	#endif
…		…
87	#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) */
88	#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) */
89	#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 */
90	/#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 */
91		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
92	#include "ev.h"	143	# include "ev.h"
		144	#endif
93		145
94	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
95	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
96	# define inline inline	148	# define inline inline
97	#else	149	#else
…		…
107		159
108	typedef struct ev_watcher *W;	160	typedef struct ev_watcher *W;
109	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
110	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
111		163
112	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
113	ev_tstamp ev_now;	249	ev_tstamp ev_rt_now;
114	int ev_method;	250	#define VAR(name,decl) static decl;
		251	#include "ev_vars.h"
		252	#undef VAR
115		253
116	static int have_monotonic; /* runtime */	254	static int default_loop;
117		255
118	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	256	#endif
119	static void (*method_modify)(int fd, int oev, int nev);
120	static void (*method_poll)(ev_tstamp timeout);
121		257
122	/*****************************************************************************/	258	/*****************************************************************************/
123		259
124	ev_tstamp	260	ev_tstamp
125	ev_time (void)	261	ev_time (void)
…		…
133	gettimeofday (&tv, 0);	269	gettimeofday (&tv, 0);
134	return tv.tv_sec + tv.tv_usec * 1e-6;	270	return tv.tv_sec + tv.tv_usec * 1e-6;
135	#endif	271	#endif
136	}	272	}
137		273
138	static ev_tstamp	274	inline ev_tstamp
139	get_clock (void)	275	get_clock (void)
140	{	276	{
141	#if EV_USE_MONOTONIC	277	#if EV_USE_MONOTONIC
142	if (expect_true (have_monotonic))	278	if (expect_true (have_monotonic))
143	{	279	{
…		…
148	#endif	284	#endif
149		285
150	return ev_time ();	286	return ev_time ();
151	}	287	}
152		288
		289	#if EV_MULTIPLICITY
		290	ev_tstamp
		291	ev_now (EV_P)
		292	{
		293	return ev_rt_now;
		294	}
		295	#endif
		296
153	#define array_roundsize(base,n) ((n) \| 4 & ~3)	297	#define array_roundsize(type,n) ((n) \| 4 & ~3)
154		298
155	#define array_needsize(base,cur,cnt,init) \	299	#define array_needsize(type,base,cur,cnt,init) \
156	if (expect_false ((cnt) > cur)) \	300	if (expect_false ((cnt) > cur)) \
157	{ \	301	{ \
158	int newcnt = cur; \	302	int newcnt = cur; \
159	do \	303	do \
160	{ \	304	{ \
161	newcnt = array_roundsize (base, newcnt << 1); \	305	newcnt = array_roundsize (type, newcnt << 1); \
162	} \	306	} \
163	while ((cnt) > newcnt); \	307	while ((cnt) > newcnt); \
164	\	308	\
165	base = realloc (base, sizeof (base) (newcnt)); \	309	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
166	init (base + cur, newcnt - cur); \	310	init (base + cur, newcnt - cur); \
167	cur = newcnt; \	311	cur = newcnt; \
168	}	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;
169		329
170	/*****************************************************************************/	330	/*****************************************************************************/
171
172	typedef struct
173	{
174	struct ev_io *head;
175	unsigned char events;
176	unsigned char reify;
177	} ANFD;
178
179	static ANFD *anfds;
180	static int anfdmax;
181		331
182	static void	332	static void
183	anfds_init (ANFD *base, int count)	333	anfds_init (ANFD *base, int count)
184	{	334	{
185	while (count--)	335	while (count--)
…		…
190		340
191	++base;	341	++base;
192	}	342	}
193	}	343	}
194		344
195	typedef struct	345	void
		346	ev_feed_event (EV_P_ void *w, int revents)
196	{	347	{
197	W w;	348	W w_ = (W)w;
198	int events;
199	} ANPENDING;
200		349
201	static ANPENDING *pendings [NUMPRI];
202	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
203
204	static void
205	event (W w, int events)
206	{
207	if (w->pending)	350	if (w_->pending)
208	{	351	{
209	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
210	return;	353	return;
211	}	354	}
212		355
213	w->pending = ++pendingcnt [ABSPRI (w)];	356	w_->pending = ++pendingcnt [ABSPRI (w_)];
214	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));
215	pendings [ABSPRI (w)][w->pending - 1].w = w;	358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
216	pendings [ABSPRI (w)][w->pending - 1].events = events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
217	}	360	}
218		361
219	static void	362	static void
220	queue_events (W *events, int eventcnt, int type)	363	queue_events (EV_P_ W *events, int eventcnt, int type)
221	{	364	{
222	int i;	365	int i;
223		366
224	for (i = 0; i < eventcnt; ++i)	367	for (i = 0; i < eventcnt; ++i)
225	event (events [i], type);	368	ev_feed_event (EV_A_ events [i], type);
226	}	369	}
227		370
228	static void	371	inline void
229	fd_event (int fd, int events)	372	fd_event (EV_P_ int fd, int revents)
230	{	373	{
231	ANFD *anfd = anfds + fd;	374	ANFD *anfd = anfds + fd;
232	struct ev_io *w;	375	struct ev_io *w;
233		376
234	for (w = anfd->head; w; w = w->next)	377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
235	{	378	{
236	int ev = w->events & events;	379	int ev = w->events & revents;
237		380
238	if (ev)	381	if (ev)
239	event ((W)w, ev);	382	ev_feed_event (EV_A_ (W)w, ev);
240	}	383	}
		384	}
		385
		386	void
		387	ev_feed_fd_event (EV_P_ int fd, int revents)
		388	{
		389	fd_event (EV_A_ fd, revents);
241	}	390	}
242		391
243	/*****************************************************************************/	392	/*****************************************************************************/
244		393
245	static int *fdchanges;
246	static int fdchangemax, fdchangecnt;
247
248	static void	394	static void
249	fd_reify (void)	395	fd_reify (EV_P)
250	{	396	{
251	int i;	397	int i;
252		398
253	for (i = 0; i < fdchangecnt; ++i)	399	for (i = 0; i < fdchangecnt; ++i)
254	{	400	{
…		…
256	ANFD *anfd = anfds + fd;	402	ANFD *anfd = anfds + fd;
257	struct ev_io *w;	403	struct ev_io *w;
258		404
259	int events = 0;	405	int events = 0;
260		406
261	for (w = anfd->head; w; w = w->next)	407	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
262	events \|= w->events;	408	events \|= w->events;
263		409
264	anfd->reify = 0;	410	anfd->reify = 0;
265		411
266	if (anfd->events != events)
267	{
268	method_modify (fd, anfd->events, events);	412	method_modify (EV_A_ fd, anfd->events, events);
269	anfd->events = events;	413	anfd->events = events;
270	}
271	}	414	}
272		415
273	fdchangecnt = 0;	416	fdchangecnt = 0;
274	}	417	}
275		418
276	static void	419	static void
277	fd_change (int fd)	420	fd_change (EV_P_ int fd)
278	{	421	{
279	if (anfds [fd].reify \|\| fdchangecnt < 0)	422	if (anfds [fd].reify)
280	return;	423	return;
281		424
282	anfds [fd].reify = 1;	425	anfds [fd].reify = 1;
283		426
284	++fdchangecnt;	427	++fdchangecnt;
285	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
286	fdchanges [fdchangecnt - 1] = fd;	429	fdchanges [fdchangecnt - 1] = fd;
287	}	430	}
288		431
289	static void	432	static void
290	fd_kill (int fd)	433	fd_kill (EV_P_ int fd)
291	{	434	{
292	struct ev_io *w;	435	struct ev_io *w;
293		436
294	printf ("killing fd %d\n", fd);//D
295	while ((w = anfds [fd].head))	437	while ((w = (struct ev_io *)anfds [fd].head))
296	{	438	{
297	ev_io_stop (w);	439	ev_io_stop (EV_A_ w);
298	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	440	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
299	}	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
300	}	452	}
301		453
302	/* called on EBADF to verify fds */	454	/* called on EBADF to verify fds */
303	static void	455	static void
304	fd_ebadf (void)	456	fd_ebadf (EV_P)
305	{	457	{
306	int fd;	458	int fd;
307		459
308	for (fd = 0; fd < anfdmax; ++fd)	460	for (fd = 0; fd < anfdmax; ++fd)
309	if (anfds [fd].events)	461	if (anfds [fd].events)
310	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	462	if (!fd_valid (fd) == -1 && errno == EBADF)
311	fd_kill (fd);	463	fd_kill (EV_A_ fd);
312	}	464	}
313		465
314	/* 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 */
315	static void	467	static void
316	fd_enomem (void)	468	fd_enomem (EV_P)
317	{	469	{
318	int fd = anfdmax;	470	int fd;
319		471
320	while (fd--)	472	for (fd = anfdmax; fd--; )
321	if (anfds [fd].events)	473	if (anfds [fd].events)
322	{	474	{
323	close (fd);
324	fd_kill (fd);	475	fd_kill (EV_A_ fd);
325	return;	476	return;
326	}	477	}
327	}	478	}
328		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
329	/*****************************************************************************/	495	/*****************************************************************************/
330		496
331	static struct ev_timer **timers;
332	static int timermax, timercnt;
333
334	static struct ev_periodic **periodics;
335	static int periodicmax, periodiccnt;
336
337	static void	497	static void
338	upheap (WT *timers, int k)	498	upheap (WT *heap, int k)
339	{	499	{
340	WT w = timers [k];	500	WT w = heap [k];
341		501
342	while (k && timers [k >> 1]->at > w->at)	502	while (k && heap [k >> 1]->at > w->at)
343	{	503	{
344	timers [k] = timers [k >> 1];	504	heap [k] = heap [k >> 1];
345	timers [k]->active = k + 1;	505	((W)heap [k])->active = k + 1;
346	k >>= 1;	506	k >>= 1;
347	}	507	}
348		508
349	timers [k] = w;	509	heap [k] = w;
350	timers [k]->active = k + 1;	510	((W)heap [k])->active = k + 1;
351		511
352	}	512	}
353		513
354	static void	514	static void
355	downheap (WT *timers, int N, int k)	515	downheap (WT *heap, int N, int k)
356	{	516	{
357	WT w = timers [k];	517	WT w = heap [k];
358		518
359	while (k < (N >> 1))	519	while (k < (N >> 1))
360	{	520	{
361	int j = k << 1;	521	int j = k << 1;
362		522
363	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	523	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
364	++j;	524	++j;
365		525
366	if (w->at <= timers [j]->at)	526	if (w->at <= heap [j]->at)
367	break;	527	break;
368		528
369	timers [k] = timers [j];	529	heap [k] = heap [j];
370	timers [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
371	k = j;	531	k = j;
372	}	532	}
373		533
374	timers [k] = w;	534	heap [k] = w;
375	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);
376	}	548	}
377		549
378	/*****************************************************************************/	550	/*****************************************************************************/
379		551
380	typedef struct	552	typedef struct
381	{	553	{
382	struct ev_signal *head;	554	WL head;
383	sig_atomic_t volatile gotsig;	555	sig_atomic_t volatile gotsig;
384	} ANSIG;	556	} ANSIG;
385		557
386	static ANSIG *signals;	558	static ANSIG *signals;
387	static int signalmax;	559	static int signalmax;
…		…
403	}	575	}
404		576
405	static void	577	static void
406	sighandler (int signum)	578	sighandler (int signum)
407	{	579	{
		580	#if WIN32
		581	signal (signum, sighandler);
		582	#endif
		583
408	signals [signum - 1].gotsig = 1;	584	signals [signum - 1].gotsig = 1;
409		585
410	if (!gotsig)	586	if (!gotsig)
411	{	587	{
		588	int old_errno = errno;
412	gotsig = 1;	589	gotsig = 1;
		590	#ifdef WIN32
		591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		592	#else
413	write (sigpipe [1], &signum, 1);	593	write (sigpipe [1], &signum, 1);
		594	#endif
		595	errno = old_errno;
414	}	596	}
415	}	597	}
416		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
417	static void	619	static void
418	sigcb (struct ev_io *iow, int revents)	620	sigcb (EV_P_ struct ev_io *iow, int revents)
419	{	621	{
420	struct ev_signal *w;
421	int signum;	622	int signum;
422		623
		624	#ifdef WIN32
		625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		626	#else
423	read (sigpipe [0], &revents, 1);	627	read (sigpipe [0], &revents, 1);
		628	#endif
424	gotsig = 0;	629	gotsig = 0;
425		630
426	for (signum = signalmax; signum--; )	631	for (signum = signalmax; signum--; )
427	if (signals [signum].gotsig)	632	if (signals [signum].gotsig)
428	{	633	ev_feed_signal_event (EV_A_ signum + 1);
429	signals [signum].gotsig = 0;
430
431	for (w = signals [signum].head; w; w = w->next)
432	event ((W)w, EV_SIGNAL);
433	}
434	}	634	}
435		635
436	static void	636	static void
437	siginit (void)	637	siginit (EV_P)
438	{	638	{
		639	#ifndef WIN32
439	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	640	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
440	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	641	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
441		642
442	/* rather than sort out wether we really need nb, set it */	643	/* rather than sort out wether we really need nb, set it */
443	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	644	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
444	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	645	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		646	#endif
445		647
446	ev_io_set (&sigev, sigpipe [0], EV_READ);	648	ev_io_set (&sigev, sigpipe [0], EV_READ);
447	ev_io_start (&sigev);	649	ev_io_start (EV_A_ &sigev);
		650	ev_unref (EV_A); /* child watcher should not keep loop alive */
448	}	651	}
449		652
450	/*****************************************************************************/	653	/*****************************************************************************/
451		654
452	static struct ev_idle **idles;
453	static int idlemax, idlecnt;
454
455	static struct ev_prepare **prepares;
456	static int preparemax, preparecnt;
457
458	static struct ev_check **checks;
459	static int checkmax, checkcnt;
460
461	/*****************************************************************************/
462
463	static struct ev_child *childs [PID_HASHSIZE];	655	static struct ev_child *childs [PID_HASHSIZE];
		656
		657	#ifndef WIN32
		658
464	static struct ev_signal childev;	659	static struct ev_signal childev;
465		660
466	#ifndef WCONTINUED	661	#ifndef WCONTINUED
467	# define WCONTINUED 0	662	# define WCONTINUED 0
468	#endif	663	#endif
469		664
470	static void	665	static void
471	childcb (struct ev_signal *sw, int revents)	666	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
472	{	667	{
473	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	{
474	int pid, status;	683	int pid, status;
475		684
476	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	685	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
477	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	686	{
478	if (w->pid == pid \|\| !w->pid)	687	/* make sure we are called again until all childs have been reaped */
479	{	688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
480	w->status = status;	689
481	event ((W)w, EV_CHILD);	690	child_reap (EV_A_ sw, pid, pid, status);
482	}	691	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		692	}
483	}	693	}
		694
		695	#endif
484		696
485	/*****************************************************************************/	697	/*****************************************************************************/
486		698
		699	#if EV_USE_KQUEUE
		700	# include "ev_kqueue.c"
		701	#endif
487	#if EV_USE_EPOLL	702	#if EV_USE_EPOLL
488	# include "ev_epoll.c"	703	# include "ev_epoll.c"
489	#endif	704	#endif
490	#if EV_USE_POLL	705	#if EV_USE_POLL
491	# include "ev_poll.c"	706	# include "ev_poll.c"
…		…
504	ev_version_minor (void)	719	ev_version_minor (void)
505	{	720	{
506	return EV_VERSION_MINOR;	721	return EV_VERSION_MINOR;
507	}	722	}
508		723
509	/* 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 */
510	static int	725	static int
511	enable_secure ()	726	enable_secure (void)
512	{	727	{
		728	#ifdef WIN32
		729	return 0;
		730	#else
513	return getuid () != geteuid ()	731	return getuid () != geteuid ()
514	\|\| getgid () != getegid ();	732	\|\| getgid () != getegid ();
		733	#endif
515	}	734	}
516		735
517	int ev_init (int methods)	736	int
		737	ev_method (EV_P)
518	{	738	{
		739	return method;
		740	}
		741
		742	static void
		743	loop_init (EV_P_ int methods)
		744	{
519	if (!ev_method)	745	if (!method)
520	{	746	{
521	#if EV_USE_MONOTONIC	747	#if EV_USE_MONOTONIC
522	{	748	{
523	struct timespec ts;	749	struct timespec ts;
524	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
525	have_monotonic = 1;	751	have_monotonic = 1;
526	}	752	}
527	#endif	753	#endif
528		754
529	ev_now = ev_time ();	755	ev_rt_now = ev_time ();
530	now = get_clock ();	756	mn_now = get_clock ();
531	now_floor = now;	757	now_floor = mn_now;
532	diff = ev_now - now;	758	rtmn_diff = ev_rt_now - mn_now;
533
534	if (pipe (sigpipe))
535	return 0;
536		759
537	if (methods == EVMETHOD_AUTO)	760	if (methods == EVMETHOD_AUTO)
538	if (!enable_secure () && getenv ("LIBEV_METHODS"))	761	if (!enable_secure () && getenv ("LIBEV_METHODS"))
539	methods = atoi (getenv ("LIBEV_METHODS"));	762	methods = atoi (getenv ("LIBEV_METHODS"));
540	else	763	else
541	methods = EVMETHOD_ANY;	764	methods = EVMETHOD_ANY;
542		765
543	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
		770	#if EV_USE_KQUEUE
		771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		772	#endif
544	#if EV_USE_EPOLL	773	#if EV_USE_EPOLL
545	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
546	#endif	775	#endif
547	#if EV_USE_POLL	776	#if EV_USE_POLL
548	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
549	#endif	778	#endif
550	#if EV_USE_SELECT	779	#if EV_USE_SELECT
551	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
552	#endif	781	#endif
553		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
554	if (ev_method)	905	if (ev_method (EV_A))
555	{	906	{
556	ev_watcher_init (&sigev, sigcb);
557	siginit ();	907	siginit (EV_A);
558		908
		909	#ifndef WIN32
559	ev_signal_init (&childev, childcb, SIGCHLD);	910	ev_signal_init (&childev, childcb, SIGCHLD);
		911	ev_set_priority (&childev, EV_MAXPRI);
560	ev_signal_start (&childev);	912	ev_signal_start (EV_A_ &childev);
		913	ev_unref (EV_A); /* child watcher should not keep loop alive */
		914	#endif
561	}	915	}
		916	else
		917	default_loop = 0;
562	}	918	}
563		919
564	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;
565	}	953	}
566		954
567	/*****************************************************************************/	955	/*****************************************************************************/
568		956
569	void
570	ev_fork_prepare (void)
571	{
572	/* nop */
573	}
574
575	void
576	ev_fork_parent (void)
577	{
578	/* nop */
579	}
580
581	void
582	ev_fork_child (void)
583	{
584	#if EV_USE_EPOLL
585	if (ev_method == EVMETHOD_EPOLL)
586	epoll_postfork_child ();
587	#endif
588
589	ev_io_stop (&sigev);
590	close (sigpipe [0]);
591	close (sigpipe [1]);
592	pipe (sigpipe);
593	siginit ();
594	}
595
596	/*****************************************************************************/
597
598	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
599	call_pending (void)	970	call_pending (EV_P)
600	{	971	{
601	int pri;	972	int pri;
602		973
603	for (pri = NUMPRI; pri--; )	974	for (pri = NUMPRI; pri--; )
604	while (pendingcnt [pri])	975	while (pendingcnt [pri])
…		…
606	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
607		978
608	if (p->w)	979	if (p->w)
609	{	980	{
610	p->w->pending = 0;	981	p->w->pending = 0;
611	p->w->cb (p->w, p->events);	982	EV_CB_INVOKE (p->w, p->events);
612	}	983	}
613	}	984	}
614	}	985	}
615		986
616	static void	987	static void
617	timers_reify (void)	988	timers_reify (EV_P)
618	{	989	{
619	while (timercnt && timers [0]->at <= now)	990	while (timercnt && ((WT)timers [0])->at <= mn_now)
620	{	991	{
621	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)));
622		995
623	/* first reschedule or stop timer */	996	/* first reschedule or stop timer */
624	if (w->repeat)	997	if (w->repeat)
625	{	998	{
626	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
627	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
628	downheap ((WT *)timers, timercnt, 0);	1005	downheap ((WT *)timers, timercnt, 0);
629	}	1006	}
630	else	1007	else
631	ev_timer_stop (w); /* nonrepeating: stop timer */	1008	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
632		1009
633	event ((W)w, EV_TIMEOUT);	1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
634	}	1011	}
635	}	1012	}
636		1013
		1014	#if EV_PERIODICS
637	static void	1015	static void
638	periodics_reify (void)	1016	periodics_reify (EV_P)
639	{	1017	{
640	while (periodiccnt && periodics [0]->at <= ev_now)	1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
641	{	1019	{
642	struct ev_periodic *w = periodics [0];	1020	struct ev_periodic *w = periodics [0];
643		1021
		1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1023
644	/* first reschedule or stop timer */	1024	/* first reschedule or stop timer */
645	if (w->interval)	1025	if (w->reschedule_cb)
646	{	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	{
647	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;
648	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));
649	downheap ((WT *)periodics, periodiccnt, 0);	1036	downheap ((WT *)periodics, periodiccnt, 0);
650	}	1037	}
651	else	1038	else
652	ev_periodic_stop (w); /* nonrepeating: stop timer */	1039	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
653		1040
654	event ((W)w, EV_PERIODIC);	1041	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
655	}	1042	}
656	}	1043	}
657		1044
658	static void	1045	static void
659	periodics_reschedule (ev_tstamp diff)	1046	periodics_reschedule (EV_P)
660	{	1047	{
661	int i;	1048	int i;
662		1049
663	/* adjust periodics after time jump */	1050	/* adjust periodics after time jump */
664	for (i = 0; i < periodiccnt; ++i)	1051	for (i = 0; i < periodiccnt; ++i)
665	{	1052	{
666	struct ev_periodic *w = periodics [i];	1053	struct ev_periodic *w = periodics [i];
667		1054
		1055	if (w->reschedule_cb)
		1056	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
668	if (w->interval)	1057	else if (w->interval)
669	{
670	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;
671
672	if (fabs (diff) >= 1e-4)
673	{
674	ev_periodic_stop (w);
675	ev_periodic_start (w);
676
677	i = 0; /* restart loop, inefficient, but time jumps should be rare */
678	}
679	}
680	}	1059	}
681	}
682		1060
683	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
684	time_update_monotonic (void)	1068	time_update_monotonic (EV_P)
685	{	1069	{
686	now = get_clock ();	1070	mn_now = get_clock ();
687		1071
688	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1072	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
689	{	1073	{
690	ev_now = now + diff;	1074	ev_rt_now = rtmn_diff + mn_now;
691	return 0;	1075	return 0;
692	}	1076	}
693	else	1077	else
694	{	1078	{
695	now_floor = now;	1079	now_floor = mn_now;
696	ev_now = ev_time ();	1080	ev_rt_now = ev_time ();
697	return 1;	1081	return 1;
698	}	1082	}
699	}	1083	}
700		1084
701	static void	1085	static void
702	time_update (void)	1086	time_update (EV_P)
703	{	1087	{
704	int i;	1088	int i;
705		1089
706	#if EV_USE_MONOTONIC	1090	#if EV_USE_MONOTONIC
707	if (expect_true (have_monotonic))	1091	if (expect_true (have_monotonic))
708	{	1092	{
709	if (time_update_monotonic ())	1093	if (time_update_monotonic (EV_A))
710	{	1094	{
711	ev_tstamp odiff = diff;	1095	ev_tstamp odiff = rtmn_diff;
712		1096
713	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 */
714	{	1098	{
715	diff = ev_now - now;	1099	rtmn_diff = ev_rt_now - mn_now;
716		1100
717	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1101	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
718	return; /* all is well */	1102	return; /* all is well */
719		1103
720	ev_now = ev_time ();	1104	ev_rt_now = ev_time ();
721	now = get_clock ();	1105	mn_now = get_clock ();
722	now_floor = now;	1106	now_floor = mn_now;
723	}	1107	}
724		1108
		1109	# if EV_PERIODICS
725	periodics_reschedule (diff - odiff);	1110	periodics_reschedule (EV_A);
		1111	# endif
726	/* 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) */
727	}	1114	}
728	}	1115	}
729	else	1116	else
730	#endif	1117	#endif
731	{	1118	{
732	ev_now = ev_time ();	1119	ev_rt_now = ev_time ();
733		1120
734	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))
735	{	1122	{
		1123	#if EV_PERIODICS
736	periodics_reschedule (ev_now - now);	1124	periodics_reschedule (EV_A);
		1125	#endif
737		1126
738	/* 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 */
739	for (i = 0; i < timercnt; ++i)	1128	for (i = 0; i < timercnt; ++i)
740	timers [i]->at += diff;	1129	((WT)timers [i])->at += ev_rt_now - mn_now;
741	}	1130	}
742		1131
743	now = ev_now;	1132	mn_now = ev_rt_now;
744	}	1133	}
745	}	1134	}
746		1135
747	int ev_loop_done;	1136	void
		1137	ev_ref (EV_P)
		1138	{
		1139	++activecnt;
		1140	}
748		1141
		1142	void
		1143	ev_unref (EV_P)
		1144	{
		1145	--activecnt;
		1146	}
		1147
		1148	static int loop_done;
		1149
		1150	void
749	void ev_loop (int flags)	1151	ev_loop (EV_P_ int flags)
750	{	1152	{
751	double block;	1153	double block;
752	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1154	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
753		1155
754	do	1156	do
755	{	1157	{
756	/* queue check watchers (and execute them) */	1158	/* queue check watchers (and execute them) */
757	if (expect_false (preparecnt))	1159	if (expect_false (preparecnt))
758	{	1160	{
759	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
760	call_pending ();	1162	call_pending (EV_A);
761	}	1163	}
762		1164
		1165	/* we might have forked, so reify kernel state if necessary */
		1166	if (expect_false (postfork))
		1167	loop_fork (EV_A);
		1168
763	/* update fd-related kernel structures */	1169	/* update fd-related kernel structures */
764	fd_reify ();	1170	fd_reify (EV_A);
765		1171
766	/* calculate blocking time */	1172	/* calculate blocking time */
767		1173
768	/* 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
769	always have timers, we just calculate it always */	1175	always have timers, we just calculate it always */
770	#if EV_USE_MONOTONIC	1176	#if EV_USE_MONOTONIC
771	if (expect_true (have_monotonic))	1177	if (expect_true (have_monotonic))
772	time_update_monotonic ();	1178	time_update_monotonic (EV_A);
773	else	1179	else
774	#endif	1180	#endif
775	{	1181	{
776	ev_now = ev_time ();	1182	ev_rt_now = ev_time ();
777	now = ev_now;	1183	mn_now = ev_rt_now;
778	}	1184	}
779		1185
780	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1186	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
781	block = 0.;	1187	block = 0.;
782	else	1188	else
783	{	1189	{
784	block = MAX_BLOCKTIME;	1190	block = MAX_BLOCKTIME;
785		1191
786	if (timercnt)	1192	if (timercnt)
787	{	1193	{
788	ev_tstamp to = timers [0]->at - now + method_fudge;	1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
789	if (block > to) block = to;	1195	if (block > to) block = to;
790	}	1196	}
791		1197
		1198	#if EV_PERIODICS
792	if (periodiccnt)	1199	if (periodiccnt)
793	{	1200	{
794	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
795	if (block > to) block = to;	1202	if (block > to) block = to;
796	}	1203	}
		1204	#endif
797		1205
798	if (block < 0.) block = 0.;	1206	if (block < 0.) block = 0.;
799	}	1207	}
800		1208
801	method_poll (block);	1209	method_poll (EV_A_ block);
802		1210
803	/* update ev_now, do magic */	1211	/* update ev_rt_now, do magic */
804	time_update ();	1212	time_update (EV_A);
805		1213
806	/* queue pending timers and reschedule them */	1214	/* queue pending timers and reschedule them */
807	timers_reify (); /* relative timers called last */	1215	timers_reify (EV_A); /* relative timers called last */
		1216	#if EV_PERIODICS
808	periodics_reify (); /* absolute timers called first */	1217	periodics_reify (EV_A); /* absolute timers called first */
		1218	#endif
809		1219
810	/* queue idle watchers unless io or timers are pending */	1220	/* queue idle watchers unless io or timers are pending */
811	if (!pendingcnt)	1221	if (idlecnt && !any_pending (EV_A))
812	queue_events ((W *)idles, idlecnt, EV_IDLE);	1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
813		1223
814	/* queue check watchers, to be executed first */	1224	/* queue check watchers, to be executed first */
815	if (checkcnt)	1225	if (checkcnt)
816	queue_events ((W *)checks, checkcnt, EV_CHECK);	1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
817		1227
818	call_pending ();	1228	call_pending (EV_A);
819	}	1229	}
820	while (!ev_loop_done);	1230	while (activecnt && !loop_done);
821		1231
822	if (ev_loop_done != 2)	1232	if (loop_done != 2)
823	ev_loop_done = 0;	1233	loop_done = 0;
		1234	}
		1235
		1236	void
		1237	ev_unloop (EV_P_ int how)
		1238	{
		1239	loop_done = how;
824	}	1240	}
825		1241
826	/*****************************************************************************/	1242	/*****************************************************************************/
827		1243
828	static void	1244	inline void
829	wlist_add (WL *head, WL elem)	1245	wlist_add (WL *head, WL elem)
830	{	1246	{
831	elem->next = *head;	1247	elem->next = *head;
832	*head = elem;	1248	*head = elem;
833	}	1249	}
834		1250
835	static void	1251	inline void
836	wlist_del (WL *head, WL elem)	1252	wlist_del (WL *head, WL elem)
837	{	1253	{
838	while (*head)	1254	while (*head)
839	{	1255	{
840	if (*head == elem)	1256	if (*head == elem)
…		…
845		1261
846	head = &(*head)->next;	1262	head = &(*head)->next;
847	}	1263	}
848	}	1264	}
849		1265
850	static void	1266	inline void
851	ev_clear_pending (W w)	1267	ev_clear_pending (EV_P_ W w)
852	{	1268	{
853	if (w->pending)	1269	if (w->pending)
854	{	1270	{
855	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1271	pendings [ABSPRI (w)][w->pending - 1].w = 0;
856	w->pending = 0;	1272	w->pending = 0;
857	}	1273	}
858	}	1274	}
859		1275
860	static void	1276	inline void
861	ev_start (W w, int active)	1277	ev_start (EV_P_ W w, int active)
862	{	1278	{
		1279	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1280	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1281
863	w->active = active;	1282	w->active = active;
		1283	ev_ref (EV_A);
864	}	1284	}
865		1285
866	static void	1286	inline void
867	ev_stop (W w)	1287	ev_stop (EV_P_ W w)
868	{	1288	{
		1289	ev_unref (EV_A);
869	w->active = 0;	1290	w->active = 0;
870	}	1291	}
871		1292
872	/*****************************************************************************/	1293	/*****************************************************************************/
873		1294
874	void	1295	void
875	ev_io_start (struct ev_io *w)	1296	ev_io_start (EV_P_ struct ev_io *w)
876	{	1297	{
877	int fd = w->fd;	1298	int fd = w->fd;
878		1299
879	if (ev_is_active (w))	1300	if (ev_is_active (w))
880	return;	1301	return;
881		1302
882	assert (("ev_io_start called with negative fd", fd >= 0));	1303	assert (("ev_io_start called with negative fd", fd >= 0));
883		1304
884	ev_start ((W)w, 1);	1305	ev_start (EV_A_ (W)w, 1);
885	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1306	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
886	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1307	wlist_add ((WL *)&anfds[fd].head, (WL)w);
887		1308
888	fd_change (fd);	1309	fd_change (EV_A_ fd);
889	}	1310	}
890		1311
891	void	1312	void
892	ev_io_stop (struct ev_io *w)	1313	ev_io_stop (EV_P_ struct ev_io *w)
893	{	1314	{
894	ev_clear_pending ((W)w);	1315	ev_clear_pending (EV_A_ (W)w);
895	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
896	return;	1317	return;
897		1318
		1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1320
898	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
899	ev_stop ((W)w);	1322	ev_stop (EV_A_ (W)w);
900		1323
901	fd_change (w->fd);	1324	fd_change (EV_A_ w->fd);
902	}	1325	}
903		1326
904	void	1327	void
905	ev_timer_start (struct ev_timer *w)	1328	ev_timer_start (EV_P_ struct ev_timer *w)
906	{	1329	{
907	if (ev_is_active (w))	1330	if (ev_is_active (w))
908	return;	1331	return;
909		1332
910	w->at += now;	1333	((WT)w)->at += mn_now;
911		1334
912	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.));
913		1336
914	ev_start ((W)w, ++timercnt);	1337	ev_start (EV_A_ (W)w, ++timercnt);
915	array_needsize (timers, timermax, timercnt, );	1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
916	timers [timercnt - 1] = w;	1339	timers [timercnt - 1] = w;
917	upheap ((WT *)timers, timercnt - 1);	1340	upheap ((WT *)timers, timercnt - 1);
918	}
919		1341
		1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1343	}
		1344
920	void	1345	void
921	ev_timer_stop (struct ev_timer *w)	1346	ev_timer_stop (EV_P_ struct ev_timer *w)
922	{	1347	{
923	ev_clear_pending ((W)w);	1348	ev_clear_pending (EV_A_ (W)w);
924	if (!ev_is_active (w))	1349	if (!ev_is_active (w))
925	return;	1350	return;
926		1351
		1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1353
927	if (w->active < timercnt--)	1354	if (((W)w)->active < timercnt--)
928	{	1355	{
929	timers [w->active - 1] = timers [timercnt];	1356	timers [((W)w)->active - 1] = timers [timercnt];
930	downheap ((WT *)timers, timercnt, w->active - 1);	1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
931	}	1358	}
932		1359
933	w->at = w->repeat;	1360	((WT)w)->at -= mn_now;
934		1361
935	ev_stop ((W)w);	1362	ev_stop (EV_A_ (W)w);
936	}	1363	}
937		1364
938	void	1365	void
939	ev_timer_again (struct ev_timer *w)	1366	ev_timer_again (EV_P_ struct ev_timer *w)
940	{	1367	{
941	if (ev_is_active (w))	1368	if (ev_is_active (w))
942	{	1369	{
943	if (w->repeat)	1370	if (w->repeat)
944	{
945	w->at = now + w->repeat;
946	downheap ((WT *)timers, timercnt, w->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
947	}
948	else	1372	else
949	ev_timer_stop (w);	1373	ev_timer_stop (EV_A_ w);
950	}	1374	}
951	else if (w->repeat)	1375	else if (w->repeat)
952	ev_timer_start (w);	1376	ev_timer_start (EV_A_ w);
953	}	1377	}
954		1378
		1379	#if EV_PERIODICS
955	void	1380	void
956	ev_periodic_start (struct ev_periodic *w)	1381	ev_periodic_start (EV_P_ struct ev_periodic *w)
957	{	1382	{
958	if (ev_is_active (w))	1383	if (ev_is_active (w))
959	return;	1384	return;
960		1385
		1386	if (w->reschedule_cb)
		1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1388	else if (w->interval)
		1389	{
961	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.));
962
963	/* 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 */
964	if (w->interval)
965	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	}
966		1394
967	ev_start ((W)w, ++periodiccnt);	1395	ev_start (EV_A_ (W)w, ++periodiccnt);
968	array_needsize (periodics, periodicmax, periodiccnt, );	1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
969	periodics [periodiccnt - 1] = w;	1397	periodics [periodiccnt - 1] = w;
970	upheap ((WT *)periodics, periodiccnt - 1);	1398	upheap ((WT *)periodics, periodiccnt - 1);
971	}
972		1399
		1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1401	}
		1402
973	void	1403	void
974	ev_periodic_stop (struct ev_periodic *w)	1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)
975	{	1405	{
976	ev_clear_pending ((W)w);	1406	ev_clear_pending (EV_A_ (W)w);
977	if (!ev_is_active (w))	1407	if (!ev_is_active (w))
978	return;	1408	return;
979		1409
		1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1411
980	if (w->active < periodiccnt--)	1412	if (((W)w)->active < periodiccnt--)
981	{	1413	{
982	periodics [w->active - 1] = periodics [periodiccnt];	1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];
983	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
984	}	1416	}
985		1417
986	ev_stop ((W)w);	1418	ev_stop (EV_A_ (W)w);
987	}	1419	}
988		1420
989	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
990	ev_signal_start (struct ev_signal *w)	1431	ev_idle_start (EV_P_ struct ev_idle *w)
991	{	1432	{
992	if (ev_is_active (w))	1433	if (ev_is_active (w))
993	return;	1434	return;
994		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
995	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));
996		1510
997	ev_start ((W)w, 1);	1511	ev_start (EV_A_ (W)w, 1);
998	array_needsize (signals, signalmax, w->signum, signals_init);	1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
999	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1000		1514
1001	if (!w->next)	1515	if (!((WL)w)->next)
1002	{	1516	{
		1517	#if WIN32
		1518	signal (w->signum, sighandler);
		1519	#else
1003	struct sigaction sa;	1520	struct sigaction sa;
1004	sa.sa_handler = sighandler;	1521	sa.sa_handler = sighandler;
1005	sigfillset (&sa.sa_mask);	1522	sigfillset (&sa.sa_mask);
1006	sa.sa_flags = 0;	1523	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1007	sigaction (w->signum, &sa, 0);	1524	sigaction (w->signum, &sa, 0);
		1525	#endif
1008	}	1526	}
1009	}	1527	}
1010		1528
1011	void	1529	void
1012	ev_signal_stop (struct ev_signal *w)	1530	ev_signal_stop (EV_P_ struct ev_signal *w)
1013	{	1531	{
1014	ev_clear_pending ((W)w);	1532	ev_clear_pending (EV_A_ (W)w);
1015	if (!ev_is_active (w))	1533	if (!ev_is_active (w))
1016	return;	1534	return;
1017		1535
1018	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1536	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1019	ev_stop ((W)w);	1537	ev_stop (EV_A_ (W)w);
1020		1538
1021	if (!signals [w->signum - 1].head)	1539	if (!signals [w->signum - 1].head)
1022	signal (w->signum, SIG_DFL);	1540	signal (w->signum, SIG_DFL);
1023	}	1541	}
1024		1542
1025	void	1543	void
1026	ev_idle_start (struct ev_idle *w)	1544	ev_child_start (EV_P_ struct ev_child *w)
1027	{	1545	{
		1546	#if EV_MULTIPLICITY
		1547	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1548	#endif
1028	if (ev_is_active (w))	1549	if (ev_is_active (w))
1029	return;	1550	return;
1030		1551
1031	ev_start ((W)w, ++idlecnt);
1032	array_needsize (idles, idlemax, idlecnt, );
1033	idles [idlecnt - 1] = w;
1034	}
1035
1036	void
1037	ev_idle_stop (struct ev_idle *w)
1038	{
1039	ev_clear_pending ((W)w);
1040	if (ev_is_active (w))
1041	return;
1042
1043	idles [w->active - 1] = idles [--idlecnt];
1044	ev_stop ((W)w);
1045	}
1046
1047	void
1048	ev_prepare_start (struct ev_prepare *w)
1049	{
1050	if (ev_is_active (w))
1051	return;
1052
1053	ev_start ((W)w, ++preparecnt);
1054	array_needsize (prepares, preparemax, preparecnt, );
1055	prepares [preparecnt - 1] = w;
1056	}
1057
1058	void
1059	ev_prepare_stop (struct ev_prepare *w)
1060	{
1061	ev_clear_pending ((W)w);
1062	if (ev_is_active (w))
1063	return;
1064
1065	prepares [w->active - 1] = prepares [--preparecnt];
1066	ev_stop ((W)w);
1067	}
1068
1069	void
1070	ev_check_start (struct ev_check *w)
1071	{
1072	if (ev_is_active (w))
1073	return;
1074
1075	ev_start ((W)w, ++checkcnt);
1076	array_needsize (checks, checkmax, checkcnt, );
1077	checks [checkcnt - 1] = w;
1078	}
1079
1080	void
1081	ev_check_stop (struct ev_check *w)
1082	{
1083	ev_clear_pending ((W)w);
1084	if (ev_is_active (w))
1085	return;
1086
1087	checks [w->active - 1] = checks [--checkcnt];
1088	ev_stop ((W)w);
1089	}
1090
1091	void
1092	ev_child_start (struct ev_child *w)
1093	{
1094	if (ev_is_active (w))
1095	return;
1096
1097	ev_start ((W)w, 1);	1552	ev_start (EV_A_ (W)w, 1);
1098	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1553	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1099	}	1554	}
1100		1555
1101	void	1556	void
1102	ev_child_stop (struct ev_child *w)	1557	ev_child_stop (EV_P_ struct ev_child *w)
1103	{	1558	{
1104	ev_clear_pending ((W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1105	if (ev_is_active (w))	1560	if (!ev_is_active (w))
1106	return;	1561	return;
1107		1562
1108	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1109	ev_stop ((W)w);	1564	ev_stop (EV_A_ (W)w);
1110	}	1565	}
1111		1566
1112	/*****************************************************************************/	1567	/*****************************************************************************/
1113		1568
1114	struct ev_once	1569	struct ev_once
…		…
1118	void (cb)(int revents, void arg);	1573	void (cb)(int revents, void arg);
1119	void *arg;	1574	void *arg;
1120	};	1575	};
1121		1576
1122	static void	1577	static void
1123	once_cb (struct ev_once *once, int revents)	1578	once_cb (EV_P_ struct ev_once *once, int revents)
1124	{	1579	{
1125	void (cb)(int revents, void arg) = once->cb;	1580	void (cb)(int revents, void arg) = once->cb;
1126	void *arg = once->arg;	1581	void *arg = once->arg;
1127		1582
1128	ev_io_stop (&once->io);	1583	ev_io_stop (EV_A_ &once->io);
1129	ev_timer_stop (&once->to);	1584	ev_timer_stop (EV_A_ &once->to);
1130	free (once);	1585	ev_free (once);
1131		1586
1132	cb (revents, arg);	1587	cb (revents, arg);
1133	}	1588	}
1134		1589
1135	static void	1590	static void
1136	once_cb_io (struct ev_io *w, int revents)	1591	once_cb_io (EV_P_ struct ev_io *w, int revents)
1137	{	1592	{
1138	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);
1139	}	1594	}
1140		1595
1141	static void	1596	static void
1142	once_cb_to (struct ev_timer *w, int revents)	1597	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1143	{	1598	{
1144	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);
1145	}	1600	}
1146		1601
1147	void	1602	void
1148	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)
1149	{	1604	{
1150	struct ev_once *once = malloc (sizeof (struct ev_once));	1605	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1151		1606
1152	if (!once)	1607	if (!once)
1153	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1154	else	1609	else
1155	{	1610	{
1156	once->cb = cb;	1611	once->cb = cb;
1157	once->arg = arg;	1612	once->arg = arg;
1158		1613
1159	ev_watcher_init (&once->io, once_cb_io);	1614	ev_init (&once->io, once_cb_io);
1160	if (fd >= 0)	1615	if (fd >= 0)
1161	{	1616	{
1162	ev_io_set (&once->io, fd, events);	1617	ev_io_set (&once->io, fd, events);
1163	ev_io_start (&once->io);	1618	ev_io_start (EV_A_ &once->io);
1164	}	1619	}
1165		1620
1166	ev_watcher_init (&once->to, once_cb_to);	1621	ev_init (&once->to, once_cb_to);
1167	if (timeout >= 0.)	1622	if (timeout >= 0.)
1168	{	1623	{
1169	ev_timer_set (&once->to, timeout, 0.);	1624	ev_timer_set (&once->to, timeout, 0.);
1170	ev_timer_start (&once->to);	1625	ev_timer_start (EV_A_ &once->to);
1171	}	1626	}
1172	}	1627	}
1173	}	1628	}
1174		1629
1175	/*****************************************************************************/	1630	#ifdef __cplusplus
1176
1177	#if 0
1178
1179	struct ev_io wio;
1180
1181	static void
1182	sin_cb (struct ev_io *w, int revents)
1183	{
1184	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1185	}	1631	}
1186
1187	static void
1188	ocb (struct ev_timer *w, int revents)
1189	{
1190	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1191	ev_timer_stop (w);
1192	ev_timer_start (w);
1193	}
1194
1195	static void
1196	scb (struct ev_signal *w, int revents)
1197	{
1198	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1199	ev_io_stop (&wio);
1200	ev_io_start (&wio);
1201	}
1202
1203	static void
1204	gcb (struct ev_signal *w, int revents)
1205	{
1206	fprintf (stderr, "generic %x\n", revents);
1207
1208	}
1209
1210	int main (void)
1211	{
1212	ev_init (0);
1213
1214	ev_io_init (&wio, sin_cb, 0, EV_READ);
1215	ev_io_start (&wio);
1216
1217	struct ev_timer t[10000];
1218
1219	#if 0
1220	int i;
1221	for (i = 0; i < 10000; ++i)
1222	{
1223	struct ev_timer *w = t + i;
1224	ev_watcher_init (w, ocb, i);
1225	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1226	ev_timer_start (w);
1227	if (drand48 () < 0.5)
1228	ev_timer_stop (w);
1229	}
1230	#endif	1632	#endif
1231		1633
1232	struct ev_timer t1;
1233	ev_timer_init (&t1, ocb, 5, 10);
1234	ev_timer_start (&t1);
1235
1236	struct ev_signal sig;
1237	ev_signal_init (&sig, scb, SIGQUIT);
1238	ev_signal_start (&sig);
1239
1240	struct ev_check cw;
1241	ev_check_init (&cw, gcb);
1242	ev_check_start (&cw);
1243
1244	struct ev_idle iw;
1245	ev_idle_init (&iw, gcb);
1246	ev_idle_start (&iw);
1247
1248	ev_loop (0);
1249
1250	return 0;
1251	}
1252
1253	#endif
1254
1255
1256
1257

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Comparing libev/ev.c (file contents): Revision 1.42 by root, Fri Nov 2 20:05:05 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 1.42 by root, Fri Nov 2 20:05:05 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC