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

Comparing libev/ev.c (file contents):
Revision 1.44 by root, Fri Nov 2 20:59:14 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
…		…
66	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
67	#endif	101	#endif
68		102
69	#ifndef EV_USE_KQUEUE	103	#ifndef EV_USE_KQUEUE
70	# 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
71	#endif	115	#endif
72		116
73	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
74	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
75	#endif	119	#endif
…		…
91	#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) */
92	#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) */
93	#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 */
94	/#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 */
95		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
96	#include "ev.h"	143	# include "ev.h"
		144	#endif
97		145
98	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
99	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
100	# define inline inline	148	# define inline inline
101	#else	149	#else
…		…
111		159
112	typedef struct ev_watcher *W;	160	typedef struct ev_watcher *W;
113	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
114	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
115		163
116	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
117	ev_tstamp ev_now;	249	ev_tstamp ev_rt_now;
118	int ev_method;	250	#define VAR(name,decl) static decl;
		251	#include "ev_vars.h"
		252	#undef VAR
119		253
120	static int have_monotonic; /* runtime */	254	static int default_loop;
121		255
122	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	256	#endif
123	static void (*method_modify)(int fd, int oev, int nev);
124	static void (*method_poll)(ev_tstamp timeout);
125		257
126	/*****************************************************************************/	258	/*****************************************************************************/
127		259
128	ev_tstamp	260	ev_tstamp
129	ev_time (void)	261	ev_time (void)
…		…
137	gettimeofday (&tv, 0);	269	gettimeofday (&tv, 0);
138	return tv.tv_sec + tv.tv_usec * 1e-6;	270	return tv.tv_sec + tv.tv_usec * 1e-6;
139	#endif	271	#endif
140	}	272	}
141		273
142	static ev_tstamp	274	inline ev_tstamp
143	get_clock (void)	275	get_clock (void)
144	{	276	{
145	#if EV_USE_MONOTONIC	277	#if EV_USE_MONOTONIC
146	if (expect_true (have_monotonic))	278	if (expect_true (have_monotonic))
147	{	279	{
…		…
152	#endif	284	#endif
153		285
154	return ev_time ();	286	return ev_time ();
155	}	287	}
156		288
		289	#if EV_MULTIPLICITY
		290	ev_tstamp
		291	ev_now (EV_P)
		292	{
		293	return ev_rt_now;
		294	}
		295	#endif
		296
157	#define array_roundsize(base,n) ((n) \| 4 & ~3)	297	#define array_roundsize(type,n) ((n) \| 4 & ~3)
158		298
159	#define array_needsize(base,cur,cnt,init) \	299	#define array_needsize(type,base,cur,cnt,init) \
160	if (expect_false ((cnt) > cur)) \	300	if (expect_false ((cnt) > cur)) \
161	{ \	301	{ \
162	int newcnt = cur; \	302	int newcnt = cur; \
163	do \	303	do \
164	{ \	304	{ \
165	newcnt = array_roundsize (base, newcnt << 1); \	305	newcnt = array_roundsize (type, newcnt << 1); \
166	} \	306	} \
167	while ((cnt) > newcnt); \	307	while ((cnt) > newcnt); \
168	\	308	\
169	base = realloc (base, sizeof (base) (newcnt)); \	309	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
170	init (base + cur, newcnt - cur); \	310	init (base + cur, newcnt - cur); \
171	cur = newcnt; \	311	cur = newcnt; \
172	}	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;
173		329
174	/*****************************************************************************/	330	/*****************************************************************************/
175
176	typedef struct
177	{
178	struct ev_io *head;
179	unsigned char events;
180	unsigned char reify;
181	} ANFD;
182
183	static ANFD *anfds;
184	static int anfdmax;
185		331
186	static void	332	static void
187	anfds_init (ANFD *base, int count)	333	anfds_init (ANFD *base, int count)
188	{	334	{
189	while (count--)	335	while (count--)
…		…
194		340
195	++base;	341	++base;
196	}	342	}
197	}	343	}
198		344
199	typedef struct	345	void
		346	ev_feed_event (EV_P_ void *w, int revents)
200	{	347	{
201	W w;	348	W w_ = (W)w;
202	int events;
203	} ANPENDING;
204		349
205	static ANPENDING *pendings [NUMPRI];
206	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
207
208	static void
209	event (W w, int events)
210	{
211	if (w->pending)	350	if (w_->pending)
212	{	351	{
213	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	352	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
214	return;	353	return;
215	}	354	}
216		355
217	w->pending = ++pendingcnt [ABSPRI (w)];	356	w_->pending = ++pendingcnt [ABSPRI (w_)];
218	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));
219	pendings [ABSPRI (w)][w->pending - 1].w = w;	358	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
220	pendings [ABSPRI (w)][w->pending - 1].events = events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
221	}	360	}
222		361
223	static void	362	static void
224	queue_events (W *events, int eventcnt, int type)	363	queue_events (EV_P_ W *events, int eventcnt, int type)
225	{	364	{
226	int i;	365	int i;
227		366
228	for (i = 0; i < eventcnt; ++i)	367	for (i = 0; i < eventcnt; ++i)
229	event (events [i], type);	368	ev_feed_event (EV_A_ events [i], type);
230	}	369	}
231		370
232	static void	371	inline void
233	fd_event (int fd, int events)	372	fd_event (EV_P_ int fd, int revents)
234	{	373	{
235	ANFD *anfd = anfds + fd;	374	ANFD *anfd = anfds + fd;
236	struct ev_io *w;	375	struct ev_io *w;
237		376
238	for (w = anfd->head; w; w = w->next)	377	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
239	{	378	{
240	int ev = w->events & events;	379	int ev = w->events & revents;
241		380
242	if (ev)	381	if (ev)
243	event ((W)w, ev);	382	ev_feed_event (EV_A_ (W)w, ev);
244	}	383	}
		384	}
		385
		386	void
		387	ev_feed_fd_event (EV_P_ int fd, int revents)
		388	{
		389	fd_event (EV_A_ fd, revents);
245	}	390	}
246		391
247	/*****************************************************************************/	392	/*****************************************************************************/
248		393
249	static int *fdchanges;
250	static int fdchangemax, fdchangecnt;
251
252	static void	394	static void
253	fd_reify (void)	395	fd_reify (EV_P)
254	{	396	{
255	int i;	397	int i;
256		398
257	for (i = 0; i < fdchangecnt; ++i)	399	for (i = 0; i < fdchangecnt; ++i)
258	{	400	{
…		…
260	ANFD *anfd = anfds + fd;	402	ANFD *anfd = anfds + fd;
261	struct ev_io *w;	403	struct ev_io *w;
262		404
263	int events = 0;	405	int events = 0;
264		406
265	for (w = anfd->head; w; w = w->next)	407	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
266	events \|= w->events;	408	events \|= w->events;
267		409
268	anfd->reify = 0;	410	anfd->reify = 0;
269		411
270	if (anfd->events != events)
271	{
272	method_modify (fd, anfd->events, events);	412	method_modify (EV_A_ fd, anfd->events, events);
273	anfd->events = events;	413	anfd->events = events;
274	}
275	}	414	}
276		415
277	fdchangecnt = 0;	416	fdchangecnt = 0;
278	}	417	}
279		418
280	static void	419	static void
281	fd_change (int fd)	420	fd_change (EV_P_ int fd)
282	{	421	{
283	if (anfds [fd].reify \|\| fdchangecnt < 0)	422	if (anfds [fd].reify)
284	return;	423	return;
285		424
286	anfds [fd].reify = 1;	425	anfds [fd].reify = 1;
287		426
288	++fdchangecnt;	427	++fdchangecnt;
289	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	428	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
290	fdchanges [fdchangecnt - 1] = fd;	429	fdchanges [fdchangecnt - 1] = fd;
291	}	430	}
292		431
293	static void	432	static void
294	fd_kill (int fd)	433	fd_kill (EV_P_ int fd)
295	{	434	{
296	struct ev_io *w;	435	struct ev_io *w;
297		436
298	printf ("killing fd %d\n", fd);//D
299	while ((w = anfds [fd].head))	437	while ((w = (struct ev_io *)anfds [fd].head))
300	{	438	{
301	ev_io_stop (w);	439	ev_io_stop (EV_A_ w);
302	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	440	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
303	}	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
304	}	452	}
305		453
306	/* called on EBADF to verify fds */	454	/* called on EBADF to verify fds */
307	static void	455	static void
308	fd_ebadf (void)	456	fd_ebadf (EV_P)
309	{	457	{
310	int fd;	458	int fd;
311		459
312	for (fd = 0; fd < anfdmax; ++fd)	460	for (fd = 0; fd < anfdmax; ++fd)
313	if (anfds [fd].events)	461	if (anfds [fd].events)
314	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	462	if (!fd_valid (fd) == -1 && errno == EBADF)
315	fd_kill (fd);	463	fd_kill (EV_A_ fd);
316	}	464	}
317		465
318	/* 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 */
319	static void	467	static void
320	fd_enomem (void)	468	fd_enomem (EV_P)
321	{	469	{
322	int fd = anfdmax;	470	int fd;
323		471
324	while (fd--)	472	for (fd = anfdmax; fd--; )
325	if (anfds [fd].events)	473	if (anfds [fd].events)
326	{	474	{
327	close (fd);
328	fd_kill (fd);	475	fd_kill (EV_A_ fd);
329	return;	476	return;
330	}	477	}
331	}	478	}
332		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
333	/*****************************************************************************/	495	/*****************************************************************************/
334		496
335	static struct ev_timer **timers;
336	static int timermax, timercnt;
337
338	static struct ev_periodic **periodics;
339	static int periodicmax, periodiccnt;
340
341	static void	497	static void
342	upheap (WT *timers, int k)	498	upheap (WT *heap, int k)
343	{	499	{
344	WT w = timers [k];	500	WT w = heap [k];
345		501
346	while (k && timers [k >> 1]->at > w->at)	502	while (k && heap [k >> 1]->at > w->at)
347	{	503	{
348	timers [k] = timers [k >> 1];	504	heap [k] = heap [k >> 1];
349	timers [k]->active = k + 1;	505	((W)heap [k])->active = k + 1;
350	k >>= 1;	506	k >>= 1;
351	}	507	}
352		508
353	timers [k] = w;	509	heap [k] = w;
354	timers [k]->active = k + 1;	510	((W)heap [k])->active = k + 1;
355		511
356	}	512	}
357		513
358	static void	514	static void
359	downheap (WT *timers, int N, int k)	515	downheap (WT *heap, int N, int k)
360	{	516	{
361	WT w = timers [k];	517	WT w = heap [k];
362		518
363	while (k < (N >> 1))	519	while (k < (N >> 1))
364	{	520	{
365	int j = k << 1;	521	int j = k << 1;
366		522
367	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	523	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
368	++j;	524	++j;
369		525
370	if (w->at <= timers [j]->at)	526	if (w->at <= heap [j]->at)
371	break;	527	break;
372		528
373	timers [k] = timers [j];	529	heap [k] = heap [j];
374	timers [k]->active = k + 1;	530	((W)heap [k])->active = k + 1;
375	k = j;	531	k = j;
376	}	532	}
377		533
378	timers [k] = w;	534	heap [k] = w;
379	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);
380	}	548	}
381		549
382	/*****************************************************************************/	550	/*****************************************************************************/
383		551
384	typedef struct	552	typedef struct
385	{	553	{
386	struct ev_signal *head;	554	WL head;
387	sig_atomic_t volatile gotsig;	555	sig_atomic_t volatile gotsig;
388	} ANSIG;	556	} ANSIG;
389		557
390	static ANSIG *signals;	558	static ANSIG *signals;
391	static int signalmax;	559	static int signalmax;
…		…
407	}	575	}
408		576
409	static void	577	static void
410	sighandler (int signum)	578	sighandler (int signum)
411	{	579	{
		580	#if WIN32
		581	signal (signum, sighandler);
		582	#endif
		583
412	signals [signum - 1].gotsig = 1;	584	signals [signum - 1].gotsig = 1;
413		585
414	if (!gotsig)	586	if (!gotsig)
415	{	587	{
		588	int old_errno = errno;
416	gotsig = 1;	589	gotsig = 1;
		590	#ifdef WIN32
		591	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		592	#else
417	write (sigpipe [1], &signum, 1);	593	write (sigpipe [1], &signum, 1);
		594	#endif
		595	errno = old_errno;
418	}	596	}
419	}	597	}
420		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
421	static void	619	static void
422	sigcb (struct ev_io *iow, int revents)	620	sigcb (EV_P_ struct ev_io *iow, int revents)
423	{	621	{
424	struct ev_signal *w;
425	int signum;	622	int signum;
426		623
		624	#ifdef WIN32
		625	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		626	#else
427	read (sigpipe [0], &revents, 1);	627	read (sigpipe [0], &revents, 1);
		628	#endif
428	gotsig = 0;	629	gotsig = 0;
429		630
430	for (signum = signalmax; signum--; )	631	for (signum = signalmax; signum--; )
431	if (signals [signum].gotsig)	632	if (signals [signum].gotsig)
432	{	633	ev_feed_signal_event (EV_A_ signum + 1);
433	signals [signum].gotsig = 0;
434
435	for (w = signals [signum].head; w; w = w->next)
436	event ((W)w, EV_SIGNAL);
437	}
438	}	634	}
439		635
440	static void	636	static void
441	siginit (void)	637	siginit (EV_P)
442	{	638	{
		639	#ifndef WIN32
443	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	640	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
444	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	641	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
445		642
446	/* rather than sort out wether we really need nb, set it */	643	/* rather than sort out wether we really need nb, set it */
447	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	644	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
448	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	645	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		646	#endif
449		647
450	ev_io_set (&sigev, sigpipe [0], EV_READ);	648	ev_io_set (&sigev, sigpipe [0], EV_READ);
451	ev_io_start (&sigev);	649	ev_io_start (EV_A_ &sigev);
		650	ev_unref (EV_A); /* child watcher should not keep loop alive */
452	}	651	}
453		652
454	/*****************************************************************************/	653	/*****************************************************************************/
455		654
456	static struct ev_idle **idles;
457	static int idlemax, idlecnt;
458
459	static struct ev_prepare **prepares;
460	static int preparemax, preparecnt;
461
462	static struct ev_check **checks;
463	static int checkmax, checkcnt;
464
465	/*****************************************************************************/
466
467	static struct ev_child *childs [PID_HASHSIZE];	655	static struct ev_child *childs [PID_HASHSIZE];
		656
		657	#ifndef WIN32
		658
468	static struct ev_signal childev;	659	static struct ev_signal childev;
469		660
470	#ifndef WCONTINUED	661	#ifndef WCONTINUED
471	# define WCONTINUED 0	662	# define WCONTINUED 0
472	#endif	663	#endif
473		664
474	static void	665	static void
475	childcb (struct ev_signal *sw, int revents)	666	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
476	{	667	{
477	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	{
478	int pid, status;	683	int pid, status;
479		684
480	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	685	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
481	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	686	{
482	if (w->pid == pid \|\| !w->pid)	687	/* make sure we are called again until all childs have been reaped */
483	{	688	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
484	w->status = status;	689
485	event ((W)w, EV_CHILD);	690	child_reap (EV_A_ sw, pid, pid, status);
486	}	691	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		692	}
487	}	693	}
		694
		695	#endif
488		696
489	/*****************************************************************************/	697	/*****************************************************************************/
490		698
491	#if EV_USE_KQUEUE	699	#if EV_USE_KQUEUE
492	# include "ev_kqueue.c"	700	# include "ev_kqueue.c"
…		…
511	ev_version_minor (void)	719	ev_version_minor (void)
512	{	720	{
513	return EV_VERSION_MINOR;	721	return EV_VERSION_MINOR;
514	}	722	}
515		723
516	/* 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 */
517	static int	725	static int
518	enable_secure ()	726	enable_secure (void)
519	{	727	{
		728	#ifdef WIN32
		729	return 0;
		730	#else
520	return getuid () != geteuid ()	731	return getuid () != geteuid ()
521	\|\| getgid () != getegid ();	732	\|\| getgid () != getegid ();
		733	#endif
522	}	734	}
523		735
524	int ev_init (int methods)	736	int
		737	ev_method (EV_P)
525	{	738	{
		739	return method;
		740	}
		741
		742	static void
		743	loop_init (EV_P_ int methods)
		744	{
526	if (!ev_method)	745	if (!method)
527	{	746	{
528	#if EV_USE_MONOTONIC	747	#if EV_USE_MONOTONIC
529	{	748	{
530	struct timespec ts;	749	struct timespec ts;
531	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	750	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
532	have_monotonic = 1;	751	have_monotonic = 1;
533	}	752	}
534	#endif	753	#endif
535		754
536	ev_now = ev_time ();	755	ev_rt_now = ev_time ();
537	now = get_clock ();	756	mn_now = get_clock ();
538	now_floor = now;	757	now_floor = mn_now;
539	diff = ev_now - now;	758	rtmn_diff = ev_rt_now - mn_now;
540
541	if (pipe (sigpipe))
542	return 0;
543		759
544	if (methods == EVMETHOD_AUTO)	760	if (methods == EVMETHOD_AUTO)
545	if (!enable_secure () && getenv ("LIBEV_METHODS"))	761	if (!enable_secure () && getenv ("LIBEV_METHODS"))
546	methods = atoi (getenv ("LIBEV_METHODS"));	762	methods = atoi (getenv ("LIBEV_METHODS"));
547	else	763	else
548	methods = EVMETHOD_ANY;	764	methods = EVMETHOD_ANY;
549		765
550	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
551	#if EV_USE_KQUEUE	770	#if EV_USE_KQUEUE
552	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	771	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
553	#endif	772	#endif
554	#if EV_USE_EPOLL	773	#if EV_USE_EPOLL
555	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	774	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
556	#endif	775	#endif
557	#if EV_USE_POLL	776	#if EV_USE_POLL
558	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	777	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
559	#endif	778	#endif
560	#if EV_USE_SELECT	779	#if EV_USE_SELECT
561	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	780	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
562	#endif	781	#endif
563		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
564	if (ev_method)	905	if (ev_method (EV_A))
565	{	906	{
566	ev_watcher_init (&sigev, sigcb);
567	siginit ();	907	siginit (EV_A);
568		908
		909	#ifndef WIN32
569	ev_signal_init (&childev, childcb, SIGCHLD);	910	ev_signal_init (&childev, childcb, SIGCHLD);
		911	ev_set_priority (&childev, EV_MAXPRI);
570	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
571	}	915	}
		916	else
		917	default_loop = 0;
572	}	918	}
573		919
574	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;
575	}	953	}
576		954
577	/*****************************************************************************/	955	/*****************************************************************************/
578		956
579	void
580	ev_fork_prepare (void)
581	{
582	/* nop */
583	}
584
585	void
586	ev_fork_parent (void)
587	{
588	/* nop */
589	}
590
591	void
592	ev_fork_child (void)
593	{
594	#if EV_USE_EPOLL
595	if (ev_method == EVMETHOD_EPOLL)
596	epoll_postfork_child ();
597	#endif
598
599	ev_io_stop (&sigev);
600	close (sigpipe [0]);
601	close (sigpipe [1]);
602	pipe (sigpipe);
603	siginit ();
604	}
605
606	/*****************************************************************************/
607
608	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
609	call_pending (void)	970	call_pending (EV_P)
610	{	971	{
611	int pri;	972	int pri;
612		973
613	for (pri = NUMPRI; pri--; )	974	for (pri = NUMPRI; pri--; )
614	while (pendingcnt [pri])	975	while (pendingcnt [pri])
…		…
616	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	977	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
617		978
618	if (p->w)	979	if (p->w)
619	{	980	{
620	p->w->pending = 0;	981	p->w->pending = 0;
621	p->w->cb (p->w, p->events);	982	EV_CB_INVOKE (p->w, p->events);
622	}	983	}
623	}	984	}
624	}	985	}
625		986
626	static void	987	static void
627	timers_reify (void)	988	timers_reify (EV_P)
628	{	989	{
629	while (timercnt && timers [0]->at <= now)	990	while (timercnt && ((WT)timers [0])->at <= mn_now)
630	{	991	{
631	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)));
632		995
633	/* first reschedule or stop timer */	996	/* first reschedule or stop timer */
634	if (w->repeat)	997	if (w->repeat)
635	{	998	{
636	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
637	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
638	downheap ((WT *)timers, timercnt, 0);	1005	downheap ((WT *)timers, timercnt, 0);
639	}	1006	}
640	else	1007	else
641	ev_timer_stop (w); /* nonrepeating: stop timer */	1008	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
642		1009
643	event ((W)w, EV_TIMEOUT);	1010	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
644	}	1011	}
645	}	1012	}
646		1013
		1014	#if EV_PERIODICS
647	static void	1015	static void
648	periodics_reify (void)	1016	periodics_reify (EV_P)
649	{	1017	{
650	while (periodiccnt && periodics [0]->at <= ev_now)	1018	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
651	{	1019	{
652	struct ev_periodic *w = periodics [0];	1020	struct ev_periodic *w = periodics [0];
653		1021
		1022	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1023
654	/* first reschedule or stop timer */	1024	/* first reschedule or stop timer */
655	if (w->interval)	1025	if (w->reschedule_cb)
656	{	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	{
657	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;
658	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));
659	downheap ((WT *)periodics, periodiccnt, 0);	1036	downheap ((WT *)periodics, periodiccnt, 0);
660	}	1037	}
661	else	1038	else
662	ev_periodic_stop (w); /* nonrepeating: stop timer */	1039	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
663		1040
664	event ((W)w, EV_PERIODIC);	1041	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
665	}	1042	}
666	}	1043	}
667		1044
668	static void	1045	static void
669	periodics_reschedule (ev_tstamp diff)	1046	periodics_reschedule (EV_P)
670	{	1047	{
671	int i;	1048	int i;
672		1049
673	/* adjust periodics after time jump */	1050	/* adjust periodics after time jump */
674	for (i = 0; i < periodiccnt; ++i)	1051	for (i = 0; i < periodiccnt; ++i)
675	{	1052	{
676	struct ev_periodic *w = periodics [i];	1053	struct ev_periodic *w = periodics [i];
677		1054
		1055	if (w->reschedule_cb)
		1056	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
678	if (w->interval)	1057	else if (w->interval)
679	{
680	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;
681
682	if (fabs (diff) >= 1e-4)
683	{
684	ev_periodic_stop (w);
685	ev_periodic_start (w);
686
687	i = 0; /* restart loop, inefficient, but time jumps should be rare */
688	}
689	}
690	}	1059	}
691	}
692		1060
693	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
694	time_update_monotonic (void)	1068	time_update_monotonic (EV_P)
695	{	1069	{
696	now = get_clock ();	1070	mn_now = get_clock ();
697		1071
698	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1072	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
699	{	1073	{
700	ev_now = now + diff;	1074	ev_rt_now = rtmn_diff + mn_now;
701	return 0;	1075	return 0;
702	}	1076	}
703	else	1077	else
704	{	1078	{
705	now_floor = now;	1079	now_floor = mn_now;
706	ev_now = ev_time ();	1080	ev_rt_now = ev_time ();
707	return 1;	1081	return 1;
708	}	1082	}
709	}	1083	}
710		1084
711	static void	1085	static void
712	time_update (void)	1086	time_update (EV_P)
713	{	1087	{
714	int i;	1088	int i;
715		1089
716	#if EV_USE_MONOTONIC	1090	#if EV_USE_MONOTONIC
717	if (expect_true (have_monotonic))	1091	if (expect_true (have_monotonic))
718	{	1092	{
719	if (time_update_monotonic ())	1093	if (time_update_monotonic (EV_A))
720	{	1094	{
721	ev_tstamp odiff = diff;	1095	ev_tstamp odiff = rtmn_diff;
722		1096
723	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 */
724	{	1098	{
725	diff = ev_now - now;	1099	rtmn_diff = ev_rt_now - mn_now;
726		1100
727	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1101	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
728	return; /* all is well */	1102	return; /* all is well */
729		1103
730	ev_now = ev_time ();	1104	ev_rt_now = ev_time ();
731	now = get_clock ();	1105	mn_now = get_clock ();
732	now_floor = now;	1106	now_floor = mn_now;
733	}	1107	}
734		1108
		1109	# if EV_PERIODICS
735	periodics_reschedule (diff - odiff);	1110	periodics_reschedule (EV_A);
		1111	# endif
736	/* 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) */
737	}	1114	}
738	}	1115	}
739	else	1116	else
740	#endif	1117	#endif
741	{	1118	{
742	ev_now = ev_time ();	1119	ev_rt_now = ev_time ();
743		1120
744	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))
745	{	1122	{
		1123	#if EV_PERIODICS
746	periodics_reschedule (ev_now - now);	1124	periodics_reschedule (EV_A);
		1125	#endif
747		1126
748	/* 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 */
749	for (i = 0; i < timercnt; ++i)	1128	for (i = 0; i < timercnt; ++i)
750	timers [i]->at += diff;	1129	((WT)timers [i])->at += ev_rt_now - mn_now;
751	}	1130	}
752		1131
753	now = ev_now;	1132	mn_now = ev_rt_now;
754	}	1133	}
755	}	1134	}
756		1135
757	int ev_loop_done;	1136	void
		1137	ev_ref (EV_P)
		1138	{
		1139	++activecnt;
		1140	}
758		1141
		1142	void
		1143	ev_unref (EV_P)
		1144	{
		1145	--activecnt;
		1146	}
		1147
		1148	static int loop_done;
		1149
		1150	void
759	void ev_loop (int flags)	1151	ev_loop (EV_P_ int flags)
760	{	1152	{
761	double block;	1153	double block;
762	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1154	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
763		1155
764	do	1156	do
765	{	1157	{
766	/* queue check watchers (and execute them) */	1158	/* queue check watchers (and execute them) */
767	if (expect_false (preparecnt))	1159	if (expect_false (preparecnt))
768	{	1160	{
769	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1161	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
770	call_pending ();	1162	call_pending (EV_A);
771	}	1163	}
772		1164
		1165	/* we might have forked, so reify kernel state if necessary */
		1166	if (expect_false (postfork))
		1167	loop_fork (EV_A);
		1168
773	/* update fd-related kernel structures */	1169	/* update fd-related kernel structures */
774	fd_reify ();	1170	fd_reify (EV_A);
775		1171
776	/* calculate blocking time */	1172	/* calculate blocking time */
777		1173
778	/* 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
779	always have timers, we just calculate it always */	1175	always have timers, we just calculate it always */
780	#if EV_USE_MONOTONIC	1176	#if EV_USE_MONOTONIC
781	if (expect_true (have_monotonic))	1177	if (expect_true (have_monotonic))
782	time_update_monotonic ();	1178	time_update_monotonic (EV_A);
783	else	1179	else
784	#endif	1180	#endif
785	{	1181	{
786	ev_now = ev_time ();	1182	ev_rt_now = ev_time ();
787	now = ev_now;	1183	mn_now = ev_rt_now;
788	}	1184	}
789		1185
790	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1186	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
791	block = 0.;	1187	block = 0.;
792	else	1188	else
793	{	1189	{
794	block = MAX_BLOCKTIME;	1190	block = MAX_BLOCKTIME;
795		1191
796	if (timercnt)	1192	if (timercnt)
797	{	1193	{
798	ev_tstamp to = timers [0]->at - now + method_fudge;	1194	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
799	if (block > to) block = to;	1195	if (block > to) block = to;
800	}	1196	}
801		1197
		1198	#if EV_PERIODICS
802	if (periodiccnt)	1199	if (periodiccnt)
803	{	1200	{
804	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1201	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
805	if (block > to) block = to;	1202	if (block > to) block = to;
806	}	1203	}
		1204	#endif
807		1205
808	if (block < 0.) block = 0.;	1206	if (block < 0.) block = 0.;
809	}	1207	}
810		1208
811	method_poll (block);	1209	method_poll (EV_A_ block);
812		1210
813	/* update ev_now, do magic */	1211	/* update ev_rt_now, do magic */
814	time_update ();	1212	time_update (EV_A);
815		1213
816	/* queue pending timers and reschedule them */	1214	/* queue pending timers and reschedule them */
817	timers_reify (); /* relative timers called last */	1215	timers_reify (EV_A); /* relative timers called last */
		1216	#if EV_PERIODICS
818	periodics_reify (); /* absolute timers called first */	1217	periodics_reify (EV_A); /* absolute timers called first */
		1218	#endif
819		1219
820	/* queue idle watchers unless io or timers are pending */	1220	/* queue idle watchers unless io or timers are pending */
821	if (!pendingcnt)	1221	if (idlecnt && !any_pending (EV_A))
822	queue_events ((W *)idles, idlecnt, EV_IDLE);	1222	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
823		1223
824	/* queue check watchers, to be executed first */	1224	/* queue check watchers, to be executed first */
825	if (checkcnt)	1225	if (checkcnt)
826	queue_events ((W *)checks, checkcnt, EV_CHECK);	1226	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
827		1227
828	call_pending ();	1228	call_pending (EV_A);
829	}	1229	}
830	while (!ev_loop_done);	1230	while (activecnt && !loop_done);
831		1231
832	if (ev_loop_done != 2)	1232	if (loop_done != 2)
833	ev_loop_done = 0;	1233	loop_done = 0;
		1234	}
		1235
		1236	void
		1237	ev_unloop (EV_P_ int how)
		1238	{
		1239	loop_done = how;
834	}	1240	}
835		1241
836	/*****************************************************************************/	1242	/*****************************************************************************/
837		1243
838	static void	1244	inline void
839	wlist_add (WL *head, WL elem)	1245	wlist_add (WL *head, WL elem)
840	{	1246	{
841	elem->next = *head;	1247	elem->next = *head;
842	*head = elem;	1248	*head = elem;
843	}	1249	}
844		1250
845	static void	1251	inline void
846	wlist_del (WL *head, WL elem)	1252	wlist_del (WL *head, WL elem)
847	{	1253	{
848	while (*head)	1254	while (*head)
849	{	1255	{
850	if (*head == elem)	1256	if (*head == elem)
…		…
855		1261
856	head = &(*head)->next;	1262	head = &(*head)->next;
857	}	1263	}
858	}	1264	}
859		1265
860	static void	1266	inline void
861	ev_clear_pending (W w)	1267	ev_clear_pending (EV_P_ W w)
862	{	1268	{
863	if (w->pending)	1269	if (w->pending)
864	{	1270	{
865	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1271	pendings [ABSPRI (w)][w->pending - 1].w = 0;
866	w->pending = 0;	1272	w->pending = 0;
867	}	1273	}
868	}	1274	}
869		1275
870	static void	1276	inline void
871	ev_start (W w, int active)	1277	ev_start (EV_P_ W w, int active)
872	{	1278	{
873	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1279	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
874	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1280	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
875		1281
876	w->active = active;	1282	w->active = active;
		1283	ev_ref (EV_A);
877	}	1284	}
878		1285
879	static void	1286	inline void
880	ev_stop (W w)	1287	ev_stop (EV_P_ W w)
881	{	1288	{
		1289	ev_unref (EV_A);
882	w->active = 0;	1290	w->active = 0;
883	}	1291	}
884		1292
885	/*****************************************************************************/	1293	/*****************************************************************************/
886		1294
887	void	1295	void
888	ev_io_start (struct ev_io *w)	1296	ev_io_start (EV_P_ struct ev_io *w)
889	{	1297	{
890	int fd = w->fd;	1298	int fd = w->fd;
891		1299
892	if (ev_is_active (w))	1300	if (ev_is_active (w))
893	return;	1301	return;
894		1302
895	assert (("ev_io_start called with negative fd", fd >= 0));	1303	assert (("ev_io_start called with negative fd", fd >= 0));
896		1304
897	ev_start ((W)w, 1);	1305	ev_start (EV_A_ (W)w, 1);
898	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1306	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
899	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1307	wlist_add ((WL *)&anfds[fd].head, (WL)w);
900		1308
901	fd_change (fd);	1309	fd_change (EV_A_ fd);
902	}	1310	}
903		1311
904	void	1312	void
905	ev_io_stop (struct ev_io *w)	1313	ev_io_stop (EV_P_ struct ev_io *w)
906	{	1314	{
907	ev_clear_pending ((W)w);	1315	ev_clear_pending (EV_A_ (W)w);
908	if (!ev_is_active (w))	1316	if (!ev_is_active (w))
909	return;	1317	return;
910		1318
		1319	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1320
911	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1321	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
912	ev_stop ((W)w);	1322	ev_stop (EV_A_ (W)w);
913		1323
914	fd_change (w->fd);	1324	fd_change (EV_A_ w->fd);
915	}	1325	}
916		1326
917	void	1327	void
918	ev_timer_start (struct ev_timer *w)	1328	ev_timer_start (EV_P_ struct ev_timer *w)
919	{	1329	{
920	if (ev_is_active (w))	1330	if (ev_is_active (w))
921	return;	1331	return;
922		1332
923	w->at += now;	1333	((WT)w)->at += mn_now;
924		1334
925	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.));
926		1336
927	ev_start ((W)w, ++timercnt);	1337	ev_start (EV_A_ (W)w, ++timercnt);
928	array_needsize (timers, timermax, timercnt, );	1338	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
929	timers [timercnt - 1] = w;	1339	timers [timercnt - 1] = w;
930	upheap ((WT *)timers, timercnt - 1);	1340	upheap ((WT *)timers, timercnt - 1);
931	}
932		1341
		1342	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1343	}
		1344
933	void	1345	void
934	ev_timer_stop (struct ev_timer *w)	1346	ev_timer_stop (EV_P_ struct ev_timer *w)
935	{	1347	{
936	ev_clear_pending ((W)w);	1348	ev_clear_pending (EV_A_ (W)w);
937	if (!ev_is_active (w))	1349	if (!ev_is_active (w))
938	return;	1350	return;
939		1351
		1352	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1353
940	if (w->active < timercnt--)	1354	if (((W)w)->active < timercnt--)
941	{	1355	{
942	timers [w->active - 1] = timers [timercnt];	1356	timers [((W)w)->active - 1] = timers [timercnt];
943	downheap ((WT *)timers, timercnt, w->active - 1);	1357	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
944	}	1358	}
945		1359
946	w->at = w->repeat;	1360	((WT)w)->at -= mn_now;
947		1361
948	ev_stop ((W)w);	1362	ev_stop (EV_A_ (W)w);
949	}	1363	}
950		1364
951	void	1365	void
952	ev_timer_again (struct ev_timer *w)	1366	ev_timer_again (EV_P_ struct ev_timer *w)
953	{	1367	{
954	if (ev_is_active (w))	1368	if (ev_is_active (w))
955	{	1369	{
956	if (w->repeat)	1370	if (w->repeat)
957	{
958	w->at = now + w->repeat;
959	downheap ((WT *)timers, timercnt, w->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
960	}
961	else	1372	else
962	ev_timer_stop (w);	1373	ev_timer_stop (EV_A_ w);
963	}	1374	}
964	else if (w->repeat)	1375	else if (w->repeat)
965	ev_timer_start (w);	1376	ev_timer_start (EV_A_ w);
966	}	1377	}
967		1378
		1379	#if EV_PERIODICS
968	void	1380	void
969	ev_periodic_start (struct ev_periodic *w)	1381	ev_periodic_start (EV_P_ struct ev_periodic *w)
970	{	1382	{
971	if (ev_is_active (w))	1383	if (ev_is_active (w))
972	return;	1384	return;
973		1385
		1386	if (w->reschedule_cb)
		1387	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1388	else if (w->interval)
		1389	{
974	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.));
975
976	/* 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 */
977	if (w->interval)
978	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	}
979		1394
980	ev_start ((W)w, ++periodiccnt);	1395	ev_start (EV_A_ (W)w, ++periodiccnt);
981	array_needsize (periodics, periodicmax, periodiccnt, );	1396	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
982	periodics [periodiccnt - 1] = w;	1397	periodics [periodiccnt - 1] = w;
983	upheap ((WT *)periodics, periodiccnt - 1);	1398	upheap ((WT *)periodics, periodiccnt - 1);
984	}
985		1399
		1400	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1401	}
		1402
986	void	1403	void
987	ev_periodic_stop (struct ev_periodic *w)	1404	ev_periodic_stop (EV_P_ struct ev_periodic *w)
988	{	1405	{
989	ev_clear_pending ((W)w);	1406	ev_clear_pending (EV_A_ (W)w);
990	if (!ev_is_active (w))	1407	if (!ev_is_active (w))
991	return;	1408	return;
992		1409
		1410	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1411
993	if (w->active < periodiccnt--)	1412	if (((W)w)->active < periodiccnt--)
994	{	1413	{
995	periodics [w->active - 1] = periodics [periodiccnt];	1414	periodics [((W)w)->active - 1] = periodics [periodiccnt];
996	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1415	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
997	}	1416	}
998		1417
999	ev_stop ((W)w);	1418	ev_stop (EV_A_ (W)w);
1000	}	1419	}
1001		1420
1002	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
1003	ev_signal_start (struct ev_signal *w)	1431	ev_idle_start (EV_P_ struct ev_idle *w)
1004	{	1432	{
1005	if (ev_is_active (w))	1433	if (ev_is_active (w))
1006	return;	1434	return;
1007		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
1008	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));
1009		1510
1010	ev_start ((W)w, 1);	1511	ev_start (EV_A_ (W)w, 1);
1011	array_needsize (signals, signalmax, w->signum, signals_init);	1512	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1012	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1513	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1013		1514
1014	if (!w->next)	1515	if (!((WL)w)->next)
1015	{	1516	{
		1517	#if WIN32
		1518	signal (w->signum, sighandler);
		1519	#else
1016	struct sigaction sa;	1520	struct sigaction sa;
1017	sa.sa_handler = sighandler;	1521	sa.sa_handler = sighandler;
1018	sigfillset (&sa.sa_mask);	1522	sigfillset (&sa.sa_mask);
1019	sa.sa_flags = 0;	1523	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1020	sigaction (w->signum, &sa, 0);	1524	sigaction (w->signum, &sa, 0);
		1525	#endif
1021	}	1526	}
1022	}	1527	}
1023		1528
1024	void	1529	void
1025	ev_signal_stop (struct ev_signal *w)	1530	ev_signal_stop (EV_P_ struct ev_signal *w)
1026	{	1531	{
1027	ev_clear_pending ((W)w);	1532	ev_clear_pending (EV_A_ (W)w);
1028	if (!ev_is_active (w))	1533	if (!ev_is_active (w))
1029	return;	1534	return;
1030		1535
1031	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1536	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1032	ev_stop ((W)w);	1537	ev_stop (EV_A_ (W)w);
1033		1538
1034	if (!signals [w->signum - 1].head)	1539	if (!signals [w->signum - 1].head)
1035	signal (w->signum, SIG_DFL);	1540	signal (w->signum, SIG_DFL);
1036	}	1541	}
1037		1542
1038	void	1543	void
1039	ev_idle_start (struct ev_idle *w)	1544	ev_child_start (EV_P_ struct ev_child *w)
1040	{	1545	{
		1546	#if EV_MULTIPLICITY
		1547	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1548	#endif
1041	if (ev_is_active (w))	1549	if (ev_is_active (w))
1042	return;	1550	return;
1043		1551
1044	ev_start ((W)w, ++idlecnt);
1045	array_needsize (idles, idlemax, idlecnt, );
1046	idles [idlecnt - 1] = w;
1047	}
1048
1049	void
1050	ev_idle_stop (struct ev_idle *w)
1051	{
1052	ev_clear_pending ((W)w);
1053	if (ev_is_active (w))
1054	return;
1055
1056	idles [w->active - 1] = idles [--idlecnt];
1057	ev_stop ((W)w);
1058	}
1059
1060	void
1061	ev_prepare_start (struct ev_prepare *w)
1062	{
1063	if (ev_is_active (w))
1064	return;
1065
1066	ev_start ((W)w, ++preparecnt);
1067	array_needsize (prepares, preparemax, preparecnt, );
1068	prepares [preparecnt - 1] = w;
1069	}
1070
1071	void
1072	ev_prepare_stop (struct ev_prepare *w)
1073	{
1074	ev_clear_pending ((W)w);
1075	if (ev_is_active (w))
1076	return;
1077
1078	prepares [w->active - 1] = prepares [--preparecnt];
1079	ev_stop ((W)w);
1080	}
1081
1082	void
1083	ev_check_start (struct ev_check *w)
1084	{
1085	if (ev_is_active (w))
1086	return;
1087
1088	ev_start ((W)w, ++checkcnt);
1089	array_needsize (checks, checkmax, checkcnt, );
1090	checks [checkcnt - 1] = w;
1091	}
1092
1093	void
1094	ev_check_stop (struct ev_check *w)
1095	{
1096	ev_clear_pending ((W)w);
1097	if (ev_is_active (w))
1098	return;
1099
1100	checks [w->active - 1] = checks [--checkcnt];
1101	ev_stop ((W)w);
1102	}
1103
1104	void
1105	ev_child_start (struct ev_child *w)
1106	{
1107	if (ev_is_active (w))
1108	return;
1109
1110	ev_start ((W)w, 1);	1552	ev_start (EV_A_ (W)w, 1);
1111	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1553	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1112	}	1554	}
1113		1555
1114	void	1556	void
1115	ev_child_stop (struct ev_child *w)	1557	ev_child_stop (EV_P_ struct ev_child *w)
1116	{	1558	{
1117	ev_clear_pending ((W)w);	1559	ev_clear_pending (EV_A_ (W)w);
1118	if (ev_is_active (w))	1560	if (!ev_is_active (w))
1119	return;	1561	return;
1120		1562
1121	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1563	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	ev_stop ((W)w);	1564	ev_stop (EV_A_ (W)w);
1123	}	1565	}
1124		1566
1125	/*****************************************************************************/	1567	/*****************************************************************************/
1126		1568
1127	struct ev_once	1569	struct ev_once
…		…
1131	void (cb)(int revents, void arg);	1573	void (cb)(int revents, void arg);
1132	void *arg;	1574	void *arg;
1133	};	1575	};
1134		1576
1135	static void	1577	static void
1136	once_cb (struct ev_once *once, int revents)	1578	once_cb (EV_P_ struct ev_once *once, int revents)
1137	{	1579	{
1138	void (cb)(int revents, void arg) = once->cb;	1580	void (cb)(int revents, void arg) = once->cb;
1139	void *arg = once->arg;	1581	void *arg = once->arg;
1140		1582
1141	ev_io_stop (&once->io);	1583	ev_io_stop (EV_A_ &once->io);
1142	ev_timer_stop (&once->to);	1584	ev_timer_stop (EV_A_ &once->to);
1143	free (once);	1585	ev_free (once);
1144		1586
1145	cb (revents, arg);	1587	cb (revents, arg);
1146	}	1588	}
1147		1589
1148	static void	1590	static void
1149	once_cb_io (struct ev_io *w, int revents)	1591	once_cb_io (EV_P_ struct ev_io *w, int revents)
1150	{	1592	{
1151	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);
1152	}	1594	}
1153		1595
1154	static void	1596	static void
1155	once_cb_to (struct ev_timer *w, int revents)	1597	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1156	{	1598	{
1157	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);
1158	}	1600	}
1159		1601
1160	void	1602	void
1161	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)
1162	{	1604	{
1163	struct ev_once *once = malloc (sizeof (struct ev_once));	1605	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1164		1606
1165	if (!once)	1607	if (!once)
1166	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1608	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1167	else	1609	else
1168	{	1610	{
1169	once->cb = cb;	1611	once->cb = cb;
1170	once->arg = arg;	1612	once->arg = arg;
1171		1613
1172	ev_watcher_init (&once->io, once_cb_io);	1614	ev_init (&once->io, once_cb_io);
1173	if (fd >= 0)	1615	if (fd >= 0)
1174	{	1616	{
1175	ev_io_set (&once->io, fd, events);	1617	ev_io_set (&once->io, fd, events);
1176	ev_io_start (&once->io);	1618	ev_io_start (EV_A_ &once->io);
1177	}	1619	}
1178		1620
1179	ev_watcher_init (&once->to, once_cb_to);	1621	ev_init (&once->to, once_cb_to);
1180	if (timeout >= 0.)	1622	if (timeout >= 0.)
1181	{	1623	{
1182	ev_timer_set (&once->to, timeout, 0.);	1624	ev_timer_set (&once->to, timeout, 0.);
1183	ev_timer_start (&once->to);	1625	ev_timer_start (EV_A_ &once->to);
1184	}	1626	}
1185	}	1627	}
1186	}	1628	}
1187		1629
1188	/*****************************************************************************/	1630	#ifdef __cplusplus
1189
1190	#if 0
1191
1192	struct ev_io wio;
1193
1194	static void
1195	sin_cb (struct ev_io *w, int revents)
1196	{
1197	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1198	}	1631	}
1199
1200	static void
1201	ocb (struct ev_timer *w, int revents)
1202	{
1203	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1204	ev_timer_stop (w);
1205	ev_timer_start (w);
1206	}
1207
1208	static void
1209	scb (struct ev_signal *w, int revents)
1210	{
1211	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1212	ev_io_stop (&wio);
1213	ev_io_start (&wio);
1214	}
1215
1216	static void
1217	gcb (struct ev_signal *w, int revents)
1218	{
1219	fprintf (stderr, "generic %x\n", revents);
1220
1221	}
1222
1223	int main (void)
1224	{
1225	ev_init (0);
1226
1227	ev_io_init (&wio, sin_cb, 0, EV_READ);
1228	ev_io_start (&wio);
1229
1230	struct ev_timer t[10000];
1231
1232	#if 0
1233	int i;
1234	for (i = 0; i < 10000; ++i)
1235	{
1236	struct ev_timer *w = t + i;
1237	ev_watcher_init (w, ocb, i);
1238	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1239	ev_timer_start (w);
1240	if (drand48 () < 0.5)
1241	ev_timer_stop (w);
1242	}
1243	#endif	1632	#endif
1244		1633
1245	struct ev_timer t1;
1246	ev_timer_init (&t1, ocb, 5, 10);
1247	ev_timer_start (&t1);
1248
1249	struct ev_signal sig;
1250	ev_signal_init (&sig, scb, SIGQUIT);
1251	ev_signal_start (&sig);
1252
1253	struct ev_check cw;
1254	ev_check_init (&cw, gcb);
1255	ev_check_start (&cw);
1256
1257	struct ev_idle iw;
1258	ev_idle_init (&iw, gcb);
1259	ev_idle_start (&iw);
1260
1261	ev_loop (0);
1262
1263	return 0;
1264	}
1265
1266	#endif
1267
1268
1269
1270

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Comparing libev/ev.c (file contents): Revision 1.44 by root, Fri Nov 2 20:59:14 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 1.44 by root, Fri Nov 2 20:59:14 2007 UTC vs.
Revision 1.98 by root, Sun Nov 11 02:05:20 2007 UTC