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

Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#if EV_USE_CONFIG_H	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
33	#endif	64	#endif
34		65
35	#include <math.h>	66	#include <math.h>
36	#include <stdlib.h>	67	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	68	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	69	#include <stddef.h>
41		70
42	#include <stdio.h>	71	#include <stdio.h>
43		72
44	#include <assert.h>	73	#include <assert.h>
45	#include <errno.h>	74	#include <errno.h>
46	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
47	#ifndef WIN32	80	#ifndef WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
48	# include <sys/wait.h>	83	# include <sys/wait.h>
49	#endif	84	#endif
50	#include <sys/time.h>
51	#include <time.h>
52
53	/**/	85	/**/
54		86
55	#ifndef EV_USE_MONOTONIC	87	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	88	# define EV_USE_MONOTONIC 1
57	#endif	89	#endif
…		…
68	# define EV_USE_EPOLL 0	100	# define EV_USE_EPOLL 0
69	#endif	101	#endif
70		102
71	#ifndef EV_USE_KQUEUE	103	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	104	# define EV_USE_KQUEUE 0
		105	#endif
		106
		107	#ifndef EV_USE_WIN32
		108	# ifdef WIN32
		109	# define EV_USE_WIN32 0 /* it does not exist, use select */
		110	# undef EV_USE_SELECT
		111	# define EV_USE_SELECT 1
		112	# else
		113	# define EV_USE_WIN32 0
		114	# endif
73	#endif	115	#endif
74		116
75	#ifndef EV_USE_REALTIME	117	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	118	# define EV_USE_REALTIME 1
77	#endif	119	#endif
…		…
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	135	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	136	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	137	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	138	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
97		139
		140	#ifdef EV_H
		141	# include EV_H
		142	#else
98	#include "ev.h"	143	# include "ev.h"
		144	#endif
99		145
100	#if __GNUC__ >= 3	146	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	147	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	148	# define inline inline
103	#else	149	#else
…		…
113		159
114	typedef struct ev_watcher *W;	160	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	161	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	162	typedef struct ev_watcher_time *WT;
117		163
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	164	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		165
		166	#include "ev_win32.c"
		167
		168	/*****************************************************************************/
		169
		170	static void (syserr_cb)(const char msg);
		171
		172	void ev_set_syserr_cb (void (cb)(const char msg))
		173	{
		174	syserr_cb = cb;
		175	}
		176
		177	static void
		178	syserr (const char *msg)
		179	{
		180	if (!msg)
		181	msg = "(libev) system error";
		182
		183	if (syserr_cb)
		184	syserr_cb (msg);
		185	else
		186	{
		187	perror (msg);
		188	abort ();
		189	}
		190	}
		191
		192	static void (alloc)(void *ptr, long size);
		193
		194	void ev_set_allocator (void (cb)(void *ptr, long size))
		195	{
		196	alloc = cb;
		197	}
		198
		199	static void *
		200	ev_realloc (void *ptr, long size)
		201	{
		202	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		203
		204	if (!ptr && size)
		205	{
		206	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		207	abort ();
		208	}
		209
		210	return ptr;
		211	}
		212
		213	#define ev_malloc(size) ev_realloc (0, (size))
		214	#define ev_free(ptr) ev_realloc ((ptr), 0)
		215
		216	/*****************************************************************************/
		217
		218	typedef struct
		219	{
		220	WL head;
		221	unsigned char events;
		222	unsigned char reify;
		223	} ANFD;
		224
		225	typedef struct
		226	{
		227	W w;
		228	int events;
		229	} ANPENDING;
		230
		231	#if EV_MULTIPLICITY
		232
		233	struct ev_loop
		234	{
		235	ev_tstamp ev_rt_now;
		236	#define VAR(name,decl) decl;
		237	#include "ev_vars.h"
		238	#undef VAR
		239	};
		240	#include "ev_wrap.h"
		241
		242	struct ev_loop default_loop_struct;
		243	static struct ev_loop *default_loop;
		244
		245	#else
		246
119	ev_tstamp ev_now;	247	ev_tstamp ev_rt_now;
120	int ev_method;	248	#define VAR(name,decl) static decl;
		249	#include "ev_vars.h"
		250	#undef VAR
121		251
122	static int have_monotonic; /* runtime */	252	static int default_loop;
123		253
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	254	#endif
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		255
128	/*****************************************************************************/	256	/*****************************************************************************/
129		257
130	ev_tstamp	258	ev_tstamp
131	ev_time (void)	259	ev_time (void)
…		…
139	gettimeofday (&tv, 0);	267	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	268	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	269	#endif
142	}	270	}
143		271
144	static ev_tstamp	272	inline ev_tstamp
145	get_clock (void)	273	get_clock (void)
146	{	274	{
147	#if EV_USE_MONOTONIC	275	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	276	if (expect_true (have_monotonic))
149	{	277	{
…		…
154	#endif	282	#endif
155		283
156	return ev_time ();	284	return ev_time ();
157	}	285	}
158		286
		287	#if EV_MULTIPLICITY
		288	ev_tstamp
		289	ev_now (EV_P)
		290	{
		291	return ev_rt_now;
		292	}
		293	#endif
		294
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	295	#define array_roundsize(type,n) ((n) \| 4 & ~3)
160		296
161	#define array_needsize(base,cur,cnt,init) \	297	#define array_needsize(type,base,cur,cnt,init) \
162	if (expect_false ((cnt) > cur)) \	298	if (expect_false ((cnt) > cur)) \
163	{ \	299	{ \
164	int newcnt = cur; \	300	int newcnt = cur; \
165	do \	301	do \
166	{ \	302	{ \
167	newcnt = array_roundsize (base, newcnt << 1); \	303	newcnt = array_roundsize (type, newcnt << 1); \
168	} \	304	} \
169	while ((cnt) > newcnt); \	305	while ((cnt) > newcnt); \
170	\	306	\
171	base = realloc (base, sizeof (base) (newcnt)); \	307	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
172	init (base + cur, newcnt - cur); \	308	init (base + cur, newcnt - cur); \
173	cur = newcnt; \	309	cur = newcnt; \
174	}	310	}
		311
		312	#define array_slim(type,stem) \
		313	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		314	{ \
		315	stem ## max = array_roundsize (stem ## cnt >> 1); \
		316	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		317	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		318	}
		319
		320	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		321	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		322	#define array_free_microshit(stem) \
		323	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		324
		325	#define array_free(stem, idx) \
		326	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
175		327
176	/*****************************************************************************/	328	/*****************************************************************************/
177
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187		329
188	static void	330	static void
189	anfds_init (ANFD *base, int count)	331	anfds_init (ANFD *base, int count)
190	{	332	{
191	while (count--)	333	while (count--)
…		…
196		338
197	++base;	339	++base;
198	}	340	}
199	}	341	}
200		342
201	typedef struct	343	void
		344	ev_feed_event (EV_P_ void *w, int revents)
202	{	345	{
203	W w;	346	W w_ = (W)w;
204	int events;
205	} ANPENDING;
206		347
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void
211	event (W w, int events)
212	{
213	if (w->pending)	348	if (w_->pending)
214	{	349	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	350	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
216	return;	351	return;
217	}	352	}
218		353
219	w->pending = ++pendingcnt [ABSPRI (w)];	354	w_->pending = ++pendingcnt [ABSPRI (w_)];
220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	355	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	356	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	357	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
223	}	358	}
224		359
225	static void	360	static void
226	queue_events (W *events, int eventcnt, int type)	361	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	362	{
228	int i;	363	int i;
229		364
230	for (i = 0; i < eventcnt; ++i)	365	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	366	ev_feed_event (EV_A_ events [i], type);
232	}	367	}
233		368
234	static void	369	inline void
235	fd_event (int fd, int events)	370	fd_event (EV_P_ int fd, int revents)
236	{	371	{
237	ANFD *anfd = anfds + fd;	372	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	373	struct ev_io *w;
239		374
240	for (w = anfd->head; w; w = w->next)	375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	376	{
242	int ev = w->events & events;	377	int ev = w->events & revents;
243		378
244	if (ev)	379	if (ev)
245	event ((W)w, ev);	380	ev_feed_event (EV_A_ (W)w, ev);
246	}	381	}
		382	}
		383
		384	void
		385	ev_feed_fd_event (EV_P_ int fd, int revents)
		386	{
		387	fd_event (EV_A_ fd, revents);
247	}	388	}
248		389
249	/*****************************************************************************/	390	/*****************************************************************************/
250		391
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	392	static void
255	fd_reify (void)	393	fd_reify (EV_P)
256	{	394	{
257	int i;	395	int i;
258		396
259	for (i = 0; i < fdchangecnt; ++i)	397	for (i = 0; i < fdchangecnt; ++i)
260	{	398	{
…		…
262	ANFD *anfd = anfds + fd;	400	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	401	struct ev_io *w;
264		402
265	int events = 0;	403	int events = 0;
266		404
267	for (w = anfd->head; w; w = w->next)	405	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	406	events \|= w->events;
269		407
270	anfd->reify = 0;	408	anfd->reify = 0;
271		409
272	if (anfd->events != events)
273	{
274	method_modify (fd, anfd->events, events);	410	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	411	anfd->events = events;
276	}
277	}	412	}
278		413
279	fdchangecnt = 0;	414	fdchangecnt = 0;
280	}	415	}
281		416
282	static void	417	static void
283	fd_change (int fd)	418	fd_change (EV_P_ int fd)
284	{	419	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	420	if (anfds [fd].reify)
286	return;	421	return;
287		422
288	anfds [fd].reify = 1;	423	anfds [fd].reify = 1;
289		424
290	++fdchangecnt;	425	++fdchangecnt;
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	426	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
292	fdchanges [fdchangecnt - 1] = fd;	427	fdchanges [fdchangecnt - 1] = fd;
293	}	428	}
294		429
295	static void	430	static void
296	fd_kill (int fd)	431	fd_kill (EV_P_ int fd)
297	{	432	{
298	struct ev_io *w;	433	struct ev_io *w;
299		434
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	435	while ((w = (struct ev_io *)anfds [fd].head))
302	{	436	{
303	ev_io_stop (w);	437	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	438	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	439	}
		440	}
		441
		442	static int
		443	fd_valid (int fd)
		444	{
		445	#ifdef WIN32
		446	return !!win32_get_osfhandle (fd);
		447	#else
		448	return fcntl (fd, F_GETFD) != -1;
		449	#endif
306	}	450	}
307		451
308	/* called on EBADF to verify fds */	452	/* called on EBADF to verify fds */
309	static void	453	static void
310	fd_ebadf (void)	454	fd_ebadf (EV_P)
311	{	455	{
312	int fd;	456	int fd;
313		457
314	for (fd = 0; fd < anfdmax; ++fd)	458	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	459	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	460	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (fd);	461	fd_kill (EV_A_ fd);
318	}	462	}
319		463
320	/* called on ENOMEM in select/poll to kill some fds and retry */	464	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	465	static void
322	fd_enomem (void)	466	fd_enomem (EV_P)
323	{	467	{
324	int fd = anfdmax;	468	int fd;
325		469
326	while (fd--)	470	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	471	if (anfds [fd].events)
328	{	472	{
329	close (fd);
330	fd_kill (fd);	473	fd_kill (EV_A_ fd);
331	return;	474	return;
332	}	475	}
333	}	476	}
334		477
		478	/* usually called after fork if method needs to re-arm all fds from scratch */
		479	static void
		480	fd_rearm_all (EV_P)
		481	{
		482	int fd;
		483
		484	/* this should be highly optimised to not do anything but set a flag */
		485	for (fd = 0; fd < anfdmax; ++fd)
		486	if (anfds [fd].events)
		487	{
		488	anfds [fd].events = 0;
		489	fd_change (EV_A_ fd);
		490	}
		491	}
		492
335	/*****************************************************************************/	493	/*****************************************************************************/
336		494
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	495	static void
344	upheap (WT *timers, int k)	496	upheap (WT *heap, int k)
345	{	497	{
346	WT w = timers [k];	498	WT w = heap [k];
347		499
348	while (k && timers [k >> 1]->at > w->at)	500	while (k && heap [k >> 1]->at > w->at)
349	{	501	{
350	timers [k] = timers [k >> 1];	502	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	503	((W)heap [k])->active = k + 1;
352	k >>= 1;	504	k >>= 1;
353	}	505	}
354		506
355	timers [k] = w;	507	heap [k] = w;
356	timers [k]->active = k + 1;	508	((W)heap [k])->active = k + 1;
357		509
358	}	510	}
359		511
360	static void	512	static void
361	downheap (WT *timers, int N, int k)	513	downheap (WT *heap, int N, int k)
362	{	514	{
363	WT w = timers [k];	515	WT w = heap [k];
364		516
365	while (k < (N >> 1))	517	while (k < (N >> 1))
366	{	518	{
367	int j = k << 1;	519	int j = k << 1;
368		520
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	521	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	522	++j;
371		523
372	if (w->at <= timers [j]->at)	524	if (w->at <= heap [j]->at)
373	break;	525	break;
374		526
375	timers [k] = timers [j];	527	heap [k] = heap [j];
376	timers [k]->active = k + 1;	528	((W)heap [k])->active = k + 1;
377	k = j;	529	k = j;
378	}	530	}
379		531
380	timers [k] = w;	532	heap [k] = w;
381	timers [k]->active = k + 1;	533	((W)heap [k])->active = k + 1;
		534	}
		535
		536	inline void
		537	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		538	{
		539	ev_tstamp old_at = heap [k]->at;
		540	heap [k]->at = at;
		541
		542	if (old_at < at)
		543	downheap (heap, N, k);
		544	else
		545	upheap (heap, k);
382	}	546	}
383		547
384	/*****************************************************************************/	548	/*****************************************************************************/
385		549
386	typedef struct	550	typedef struct
387	{	551	{
388	struct ev_signal *head;	552	WL head;
389	sig_atomic_t volatile gotsig;	553	sig_atomic_t volatile gotsig;
390	} ANSIG;	554	} ANSIG;
391		555
392	static ANSIG *signals;	556	static ANSIG *signals;
393	static int signalmax;	557	static int signalmax;
…		…
409	}	573	}
410		574
411	static void	575	static void
412	sighandler (int signum)	576	sighandler (int signum)
413	{	577	{
		578	#if WIN32
		579	signal (signum, sighandler);
		580	#endif
		581
414	signals [signum - 1].gotsig = 1;	582	signals [signum - 1].gotsig = 1;
415		583
416	if (!gotsig)	584	if (!gotsig)
417	{	585	{
		586	int old_errno = errno;
418	gotsig = 1;	587	gotsig = 1;
		588	#ifdef WIN32
		589	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		590	#else
419	write (sigpipe [1], &signum, 1);	591	write (sigpipe [1], &signum, 1);
		592	#endif
		593	errno = old_errno;
420	}	594	}
421	}	595	}
422		596
		597	void
		598	ev_feed_signal_event (EV_P_ int signum)
		599	{
		600	WL w;
		601
		602	#if EV_MULTIPLICITY
		603	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		604	#endif
		605
		606	--signum;
		607
		608	if (signum < 0 \|\| signum >= signalmax)
		609	return;
		610
		611	signals [signum].gotsig = 0;
		612
		613	for (w = signals [signum].head; w; w = w->next)
		614	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		615	}
		616
423	static void	617	static void
424	sigcb (struct ev_io *iow, int revents)	618	sigcb (EV_P_ struct ev_io *iow, int revents)
425	{	619	{
426	struct ev_signal *w;
427	int signum;	620	int signum;
428		621
		622	#ifdef WIN32
		623	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		624	#else
429	read (sigpipe [0], &revents, 1);	625	read (sigpipe [0], &revents, 1);
		626	#endif
430	gotsig = 0;	627	gotsig = 0;
431		628
432	for (signum = signalmax; signum--; )	629	for (signum = signalmax; signum--; )
433	if (signals [signum].gotsig)	630	if (signals [signum].gotsig)
434	{	631	ev_feed_signal_event (EV_A_ signum + 1);
435	signals [signum].gotsig = 0;
436
437	for (w = signals [signum].head; w; w = w->next)
438	event ((W)w, EV_SIGNAL);
439	}
440	}	632	}
441		633
442	static void	634	static void
443	siginit (void)	635	siginit (EV_P)
444	{	636	{
445	#ifndef WIN32	637	#ifndef WIN32
446	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	638	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
447	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	639	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
448		640
…		…
450	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	642	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
451	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	643	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
452	#endif	644	#endif
453		645
454	ev_io_set (&sigev, sigpipe [0], EV_READ);	646	ev_io_set (&sigev, sigpipe [0], EV_READ);
455	ev_io_start (&sigev);	647	ev_io_start (EV_A_ &sigev);
		648	ev_unref (EV_A); /* child watcher should not keep loop alive */
456	}	649	}
457		650
458	/*****************************************************************************/	651	/*****************************************************************************/
459		652
460	static struct ev_idle **idles;
461	static int idlemax, idlecnt;
462
463	static struct ev_prepare **prepares;
464	static int preparemax, preparecnt;
465
466	static struct ev_check **checks;
467	static int checkmax, checkcnt;
468
469	/*****************************************************************************/
470
471	static struct ev_child *childs [PID_HASHSIZE];	653	static struct ev_child *childs [PID_HASHSIZE];
		654
		655	#ifndef WIN32
		656
472	static struct ev_signal childev;	657	static struct ev_signal childev;
473
474	#ifndef WIN32
475		658
476	#ifndef WCONTINUED	659	#ifndef WCONTINUED
477	# define WCONTINUED 0	660	# define WCONTINUED 0
478	#endif	661	#endif
479		662
480	static void	663	static void
481	childcb (struct ev_signal *sw, int revents)	664	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
482	{	665	{
483	struct ev_child *w;	666	struct ev_child *w;
		667
		668	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		669	if (w->pid == pid \|\| !w->pid)
		670	{
		671	ev_priority (w) = ev_priority (sw); /* need to do it now */
		672	w->rpid = pid;
		673	w->rstatus = status;
		674	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		675	}
		676	}
		677
		678	static void
		679	childcb (EV_P_ struct ev_signal *sw, int revents)
		680	{
484	int pid, status;	681	int pid, status;
485		682
486	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	683	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
487	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	684	{
488	if (w->pid == pid \|\| !w->pid)	685	/* make sure we are called again until all childs have been reaped */
489	{	686	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
490	w->status = status;	687
491	event ((W)w, EV_CHILD);	688	child_reap (EV_A_ sw, pid, pid, status);
492	}	689	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		690	}
493	}	691	}
494		692
495	#endif	693	#endif
496		694
497	/*****************************************************************************/	695	/*****************************************************************************/
…		…
519	ev_version_minor (void)	717	ev_version_minor (void)
520	{	718	{
521	return EV_VERSION_MINOR;	719	return EV_VERSION_MINOR;
522	}	720	}
523		721
524	/* return true if we are running with elevated privileges and ignore env variables */	722	/* return true if we are running with elevated privileges and should ignore env variables */
525	static int	723	static int
526	enable_secure ()	724	enable_secure (void)
527	{	725	{
		726	#ifdef WIN32
		727	return 0;
		728	#else
528	return getuid () != geteuid ()	729	return getuid () != geteuid ()
529	\|\| getgid () != getegid ();	730	\|\| getgid () != getegid ();
		731	#endif
530	}	732	}
531		733
532	int ev_init (int methods)	734	int
		735	ev_method (EV_P)
533	{	736	{
		737	return method;
		738	}
		739
		740	static void
		741	loop_init (EV_P_ int methods)
		742	{
534	if (!ev_method)	743	if (!method)
535	{	744	{
536	#if EV_USE_MONOTONIC	745	#if EV_USE_MONOTONIC
537	{	746	{
538	struct timespec ts;	747	struct timespec ts;
539	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	748	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
540	have_monotonic = 1;	749	have_monotonic = 1;
541	}	750	}
542	#endif	751	#endif
543		752
544	ev_now = ev_time ();	753	ev_rt_now = ev_time ();
545	now = get_clock ();	754	mn_now = get_clock ();
546	now_floor = now;	755	now_floor = mn_now;
547	diff = ev_now - now;	756	rtmn_diff = ev_rt_now - mn_now;
548
549	if (pipe (sigpipe))
550	return 0;
551		757
552	if (methods == EVMETHOD_AUTO)	758	if (methods == EVMETHOD_AUTO)
553	if (!enable_secure () && getenv ("LIBEV_METHODS"))	759	if (!enable_secure () && getenv ("LIBEV_METHODS"))
554	methods = atoi (getenv ("LIBEV_METHODS"));	760	methods = atoi (getenv ("LIBEV_METHODS"));
555	else	761	else
556	methods = EVMETHOD_ANY;	762	methods = EVMETHOD_ANY;
557		763
558	ev_method = 0;	764	method = 0;
		765	#if EV_USE_WIN32
		766	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		767	#endif
559	#if EV_USE_KQUEUE	768	#if EV_USE_KQUEUE
560	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	769	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
561	#endif	770	#endif
562	#if EV_USE_EPOLL	771	#if EV_USE_EPOLL
563	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	772	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
564	#endif	773	#endif
565	#if EV_USE_POLL	774	#if EV_USE_POLL
566	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	775	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
567	#endif	776	#endif
568	#if EV_USE_SELECT	777	#if EV_USE_SELECT
569	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	778	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
570	#endif	779	#endif
571		780
		781	ev_init (&sigev, sigcb);
		782	ev_set_priority (&sigev, EV_MAXPRI);
		783	}
		784	}
		785
		786	void
		787	loop_destroy (EV_P)
		788	{
		789	int i;
		790
		791	#if EV_USE_WIN32
		792	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		793	#endif
		794	#if EV_USE_KQUEUE
		795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		796	#endif
		797	#if EV_USE_EPOLL
		798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		799	#endif
		800	#if EV_USE_POLL
		801	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		802	#endif
		803	#if EV_USE_SELECT
		804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		805	#endif
		806
		807	for (i = NUMPRI; i--; )
		808	array_free (pending, [i]);
		809
		810	/* have to use the microsoft-never-gets-it-right macro */
		811	array_free_microshit (fdchange);
		812	array_free_microshit (timer);
		813	#if EV_PERIODICS
		814	array_free_microshit (periodic);
		815	#endif
		816	array_free_microshit (idle);
		817	array_free_microshit (prepare);
		818	array_free_microshit (check);
		819
		820	method = 0;
		821	}
		822
		823	static void
		824	loop_fork (EV_P)
		825	{
		826	#if EV_USE_EPOLL
		827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		828	#endif
		829	#if EV_USE_KQUEUE
		830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		831	#endif
		832
		833	if (ev_is_active (&sigev))
		834	{
		835	/* default loop */
		836
		837	ev_ref (EV_A);
		838	ev_io_stop (EV_A_ &sigev);
		839	close (sigpipe [0]);
		840	close (sigpipe [1]);
		841
		842	while (pipe (sigpipe))
		843	syserr ("(libev) error creating pipe");
		844
		845	siginit (EV_A);
		846	}
		847
		848	postfork = 0;
		849	}
		850
		851	#if EV_MULTIPLICITY
		852	struct ev_loop *
		853	ev_loop_new (int methods)
		854	{
		855	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		856
		857	memset (loop, 0, sizeof (struct ev_loop));
		858
		859	loop_init (EV_A_ methods);
		860
		861	if (ev_method (EV_A))
		862	return loop;
		863
		864	return 0;
		865	}
		866
		867	void
		868	ev_loop_destroy (EV_P)
		869	{
		870	loop_destroy (EV_A);
		871	ev_free (loop);
		872	}
		873
		874	void
		875	ev_loop_fork (EV_P)
		876	{
		877	postfork = 1;
		878	}
		879
		880	#endif
		881
		882	#if EV_MULTIPLICITY
		883	struct ev_loop *
		884	#else
		885	int
		886	#endif
		887	ev_default_loop (int methods)
		888	{
		889	if (sigpipe [0] == sigpipe [1])
		890	if (pipe (sigpipe))
		891	return 0;
		892
		893	if (!default_loop)
		894	{
		895	#if EV_MULTIPLICITY
		896	struct ev_loop *loop = default_loop = &default_loop_struct;
		897	#else
		898	default_loop = 1;
		899	#endif
		900
		901	loop_init (EV_A_ methods);
		902
572	if (ev_method)	903	if (ev_method (EV_A))
573	{	904	{
574	ev_watcher_init (&sigev, sigcb);
575	siginit ();	905	siginit (EV_A);
576		906
577	#ifndef WIN32	907	#ifndef WIN32
578	ev_signal_init (&childev, childcb, SIGCHLD);	908	ev_signal_init (&childev, childcb, SIGCHLD);
		909	ev_set_priority (&childev, EV_MAXPRI);
579	ev_signal_start (&childev);	910	ev_signal_start (EV_A_ &childev);
		911	ev_unref (EV_A); /* child watcher should not keep loop alive */
580	#endif	912	#endif
581	}	913	}
		914	else
		915	default_loop = 0;
582	}	916	}
583		917
584	return ev_method;	918	return default_loop;
		919	}
		920
		921	void
		922	ev_default_destroy (void)
		923	{
		924	#if EV_MULTIPLICITY
		925	struct ev_loop *loop = default_loop;
		926	#endif
		927
		928	#ifndef WIN32
		929	ev_ref (EV_A); /* child watcher */
		930	ev_signal_stop (EV_A_ &childev);
		931	#endif
		932
		933	ev_ref (EV_A); /* signal watcher */
		934	ev_io_stop (EV_A_ &sigev);
		935
		936	close (sigpipe [0]); sigpipe [0] = 0;
		937	close (sigpipe [1]); sigpipe [1] = 0;
		938
		939	loop_destroy (EV_A);
		940	}
		941
		942	void
		943	ev_default_fork (void)
		944	{
		945	#if EV_MULTIPLICITY
		946	struct ev_loop *loop = default_loop;
		947	#endif
		948
		949	if (method)
		950	postfork = 1;
585	}	951	}
586		952
587	/*****************************************************************************/	953	/*****************************************************************************/
588		954
589	void
590	ev_fork_prepare (void)
591	{
592	/* nop */
593	}
594
595	void
596	ev_fork_parent (void)
597	{
598	/* nop */
599	}
600
601	void
602	ev_fork_child (void)
603	{
604	#if EV_USE_EPOLL
605	if (ev_method == EVMETHOD_EPOLL)
606	epoll_postfork_child ();
607	#endif
608
609	ev_io_stop (&sigev);
610	close (sigpipe [0]);
611	close (sigpipe [1]);
612	pipe (sigpipe);
613	siginit ();
614	}
615
616	/*****************************************************************************/
617
618	static void	955	static int
		956	any_pending (EV_P)
		957	{
		958	int pri;
		959
		960	for (pri = NUMPRI; pri--; )
		961	if (pendingcnt [pri])
		962	return 1;
		963
		964	return 0;
		965	}
		966
		967	static void
619	call_pending (void)	968	call_pending (EV_P)
620	{	969	{
621	int pri;	970	int pri;
622		971
623	for (pri = NUMPRI; pri--; )	972	for (pri = NUMPRI; pri--; )
624	while (pendingcnt [pri])	973	while (pendingcnt [pri])
…		…
626	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
627		976
628	if (p->w)	977	if (p->w)
629	{	978	{
630	p->w->pending = 0;	979	p->w->pending = 0;
631	p->w->cb (p->w, p->events);	980	EV_CB_INVOKE (p->w, p->events);
632	}	981	}
633	}	982	}
634	}	983	}
635		984
636	static void	985	static void
637	timers_reify (void)	986	timers_reify (EV_P)
638	{	987	{
639	while (timercnt && timers [0]->at <= now)	988	while (timercnt && ((WT)timers [0])->at <= mn_now)
640	{	989	{
641	struct ev_timer *w = timers [0];	990	struct ev_timer *w = timers [0];
		991
		992	assert (("inactive timer on timer heap detected", ev_is_active (w)));
642		993
643	/* first reschedule or stop timer */	994	/* first reschedule or stop timer */
644	if (w->repeat)	995	if (w->repeat)
645	{	996	{
646	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	997	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		998
647	w->at = now + w->repeat;	999	((WT)w)->at += w->repeat;
		1000	if (((WT)w)->at < mn_now)
		1001	((WT)w)->at = mn_now;
		1002
648	downheap ((WT *)timers, timercnt, 0);	1003	downheap ((WT *)timers, timercnt, 0);
649	}	1004	}
650	else	1005	else
651	ev_timer_stop (w); /* nonrepeating: stop timer */	1006	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
652		1007
653	event ((W)w, EV_TIMEOUT);	1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
654	}	1009	}
655	}	1010	}
656		1011
		1012	#if EV_PERIODICS
657	static void	1013	static void
658	periodics_reify (void)	1014	periodics_reify (EV_P)
659	{	1015	{
660	while (periodiccnt && periodics [0]->at <= ev_now)	1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
661	{	1017	{
662	struct ev_periodic *w = periodics [0];	1018	struct ev_periodic *w = periodics [0];
663		1019
		1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1021
664	/* first reschedule or stop timer */	1022	/* first reschedule or stop timer */
665	if (w->interval)	1023	if (w->reschedule_cb)
666	{	1024	{
		1025	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1026
		1027	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1028	downheap ((WT *)periodics, periodiccnt, 0);
		1029	}
		1030	else if (w->interval)
		1031	{
667	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1032	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
668	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1033	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
669	downheap ((WT *)periodics, periodiccnt, 0);	1034	downheap ((WT *)periodics, periodiccnt, 0);
670	}	1035	}
671	else	1036	else
672	ev_periodic_stop (w); /* nonrepeating: stop timer */	1037	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
673		1038
674	event ((W)w, EV_PERIODIC);	1039	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
675	}	1040	}
676	}	1041	}
677		1042
678	static void	1043	static void
679	periodics_reschedule (ev_tstamp diff)	1044	periodics_reschedule (EV_P)
680	{	1045	{
681	int i;	1046	int i;
682		1047
683	/* adjust periodics after time jump */	1048	/* adjust periodics after time jump */
684	for (i = 0; i < periodiccnt; ++i)	1049	for (i = 0; i < periodiccnt; ++i)
685	{	1050	{
686	struct ev_periodic *w = periodics [i];	1051	struct ev_periodic *w = periodics [i];
687		1052
		1053	if (w->reschedule_cb)
		1054	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
688	if (w->interval)	1055	else if (w->interval)
689	{
690	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1056	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
691
692	if (fabs (diff) >= 1e-4)
693	{
694	ev_periodic_stop (w);
695	ev_periodic_start (w);
696
697	i = 0; /* restart loop, inefficient, but time jumps should be rare */
698	}
699	}
700	}	1057	}
701	}
702		1058
703	static int	1059	/* now rebuild the heap */
		1060	for (i = periodiccnt >> 1; i--; )
		1061	downheap ((WT *)periodics, periodiccnt, i);
		1062	}
		1063	#endif
		1064
		1065	inline int
704	time_update_monotonic (void)	1066	time_update_monotonic (EV_P)
705	{	1067	{
706	now = get_clock ();	1068	mn_now = get_clock ();
707		1069
708	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1070	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
709	{	1071	{
710	ev_now = now + diff;	1072	ev_rt_now = rtmn_diff + mn_now;
711	return 0;	1073	return 0;
712	}	1074	}
713	else	1075	else
714	{	1076	{
715	now_floor = now;	1077	now_floor = mn_now;
716	ev_now = ev_time ();	1078	ev_rt_now = ev_time ();
717	return 1;	1079	return 1;
718	}	1080	}
719	}	1081	}
720		1082
721	static void	1083	static void
722	time_update (void)	1084	time_update (EV_P)
723	{	1085	{
724	int i;	1086	int i;
725		1087
726	#if EV_USE_MONOTONIC	1088	#if EV_USE_MONOTONIC
727	if (expect_true (have_monotonic))	1089	if (expect_true (have_monotonic))
728	{	1090	{
729	if (time_update_monotonic ())	1091	if (time_update_monotonic (EV_A))
730	{	1092	{
731	ev_tstamp odiff = diff;	1093	ev_tstamp odiff = rtmn_diff;
732		1094
733	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1095	for (i = 4; --i; ) /* loop a few times, before making important decisions */
734	{	1096	{
735	diff = ev_now - now;	1097	rtmn_diff = ev_rt_now - mn_now;
736		1098
737	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1099	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
738	return; /* all is well */	1100	return; /* all is well */
739		1101
740	ev_now = ev_time ();	1102	ev_rt_now = ev_time ();
741	now = get_clock ();	1103	mn_now = get_clock ();
742	now_floor = now;	1104	now_floor = mn_now;
743	}	1105	}
744		1106
		1107	# if EV_PERIODICS
745	periodics_reschedule (diff - odiff);	1108	periodics_reschedule (EV_A);
		1109	# endif
746	/* no timer adjustment, as the monotonic clock doesn't jump */	1110	/* no timer adjustment, as the monotonic clock doesn't jump */
		1111	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
747	}	1112	}
748	}	1113	}
749	else	1114	else
750	#endif	1115	#endif
751	{	1116	{
752	ev_now = ev_time ();	1117	ev_rt_now = ev_time ();
753		1118
754	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1119	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
755	{	1120	{
		1121	#if EV_PERIODICS
756	periodics_reschedule (ev_now - now);	1122	periodics_reschedule (EV_A);
		1123	#endif
757		1124
758	/* adjust timers. this is easy, as the offset is the same for all */	1125	/* adjust timers. this is easy, as the offset is the same for all */
759	for (i = 0; i < timercnt; ++i)	1126	for (i = 0; i < timercnt; ++i)
760	timers [i]->at += diff;	1127	((WT)timers [i])->at += ev_rt_now - mn_now;
761	}	1128	}
762		1129
763	now = ev_now;	1130	mn_now = ev_rt_now;
764	}	1131	}
765	}	1132	}
766		1133
767	int ev_loop_done;	1134	void
		1135	ev_ref (EV_P)
		1136	{
		1137	++activecnt;
		1138	}
768		1139
		1140	void
		1141	ev_unref (EV_P)
		1142	{
		1143	--activecnt;
		1144	}
		1145
		1146	static int loop_done;
		1147
		1148	void
769	void ev_loop (int flags)	1149	ev_loop (EV_P_ int flags)
770	{	1150	{
771	double block;	1151	double block;
772	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1152	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
773		1153
774	do	1154	do
775	{	1155	{
776	/* queue check watchers (and execute them) */	1156	/* queue check watchers (and execute them) */
777	if (expect_false (preparecnt))	1157	if (expect_false (preparecnt))
778	{	1158	{
779	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
780	call_pending ();	1160	call_pending (EV_A);
781	}	1161	}
782		1162
		1163	/* we might have forked, so reify kernel state if necessary */
		1164	if (expect_false (postfork))
		1165	loop_fork (EV_A);
		1166
783	/* update fd-related kernel structures */	1167	/* update fd-related kernel structures */
784	fd_reify ();	1168	fd_reify (EV_A);
785		1169
786	/* calculate blocking time */	1170	/* calculate blocking time */
787		1171
788	/* we only need this for !monotonic clockor timers, but as we basically	1172	/* we only need this for !monotonic clock or timers, but as we basically
789	always have timers, we just calculate it always */	1173	always have timers, we just calculate it always */
790	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
791	if (expect_true (have_monotonic))	1175	if (expect_true (have_monotonic))
792	time_update_monotonic ();	1176	time_update_monotonic (EV_A);
793	else	1177	else
794	#endif	1178	#endif
795	{	1179	{
796	ev_now = ev_time ();	1180	ev_rt_now = ev_time ();
797	now = ev_now;	1181	mn_now = ev_rt_now;
798	}	1182	}
799		1183
800	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
801	block = 0.;	1185	block = 0.;
802	else	1186	else
803	{	1187	{
804	block = MAX_BLOCKTIME;	1188	block = MAX_BLOCKTIME;
805		1189
806	if (timercnt)	1190	if (timercnt)
807	{	1191	{
808	ev_tstamp to = timers [0]->at - now + method_fudge;	1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
809	if (block > to) block = to;	1193	if (block > to) block = to;
810	}	1194	}
811		1195
		1196	#if EV_PERIODICS
812	if (periodiccnt)	1197	if (periodiccnt)
813	{	1198	{
814	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
815	if (block > to) block = to;	1200	if (block > to) block = to;
816	}	1201	}
		1202	#endif
817		1203
818	if (block < 0.) block = 0.;	1204	if (block < 0.) block = 0.;
819	}	1205	}
820		1206
821	method_poll (block);	1207	method_poll (EV_A_ block);
822		1208
823	/* update ev_now, do magic */	1209	/* update ev_rt_now, do magic */
824	time_update ();	1210	time_update (EV_A);
825		1211
826	/* queue pending timers and reschedule them */	1212	/* queue pending timers and reschedule them */
827	timers_reify (); /* relative timers called last */	1213	timers_reify (EV_A); /* relative timers called last */
		1214	#if EV_PERIODICS
828	periodics_reify (); /* absolute timers called first */	1215	periodics_reify (EV_A); /* absolute timers called first */
		1216	#endif
829		1217
830	/* queue idle watchers unless io or timers are pending */	1218	/* queue idle watchers unless io or timers are pending */
831	if (!pendingcnt)	1219	if (idlecnt && !any_pending (EV_A))
832	queue_events ((W *)idles, idlecnt, EV_IDLE);	1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
833		1221
834	/* queue check watchers, to be executed first */	1222	/* queue check watchers, to be executed first */
835	if (checkcnt)	1223	if (checkcnt)
836	queue_events ((W *)checks, checkcnt, EV_CHECK);	1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
837		1225
838	call_pending ();	1226	call_pending (EV_A);
839	}	1227	}
840	while (!ev_loop_done);	1228	while (activecnt && !loop_done);
841		1229
842	if (ev_loop_done != 2)	1230	if (loop_done != 2)
843	ev_loop_done = 0;	1231	loop_done = 0;
		1232	}
		1233
		1234	void
		1235	ev_unloop (EV_P_ int how)
		1236	{
		1237	loop_done = how;
844	}	1238	}
845		1239
846	/*****************************************************************************/	1240	/*****************************************************************************/
847		1241
848	static void	1242	inline void
849	wlist_add (WL *head, WL elem)	1243	wlist_add (WL *head, WL elem)
850	{	1244	{
851	elem->next = *head;	1245	elem->next = *head;
852	*head = elem;	1246	*head = elem;
853	}	1247	}
854		1248
855	static void	1249	inline void
856	wlist_del (WL *head, WL elem)	1250	wlist_del (WL *head, WL elem)
857	{	1251	{
858	while (*head)	1252	while (*head)
859	{	1253	{
860	if (*head == elem)	1254	if (*head == elem)
…		…
865		1259
866	head = &(*head)->next;	1260	head = &(*head)->next;
867	}	1261	}
868	}	1262	}
869		1263
870	static void	1264	inline void
871	ev_clear_pending (W w)	1265	ev_clear_pending (EV_P_ W w)
872	{	1266	{
873	if (w->pending)	1267	if (w->pending)
874	{	1268	{
875	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1269	pendings [ABSPRI (w)][w->pending - 1].w = 0;
876	w->pending = 0;	1270	w->pending = 0;
877	}	1271	}
878	}	1272	}
879		1273
880	static void	1274	inline void
881	ev_start (W w, int active)	1275	ev_start (EV_P_ W w, int active)
882	{	1276	{
883	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1277	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
884	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1278	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
885		1279
886	w->active = active;	1280	w->active = active;
		1281	ev_ref (EV_A);
887	}	1282	}
888		1283
889	static void	1284	inline void
890	ev_stop (W w)	1285	ev_stop (EV_P_ W w)
891	{	1286	{
		1287	ev_unref (EV_A);
892	w->active = 0;	1288	w->active = 0;
893	}	1289	}
894		1290
895	/*****************************************************************************/	1291	/*****************************************************************************/
896		1292
897	void	1293	void
898	ev_io_start (struct ev_io *w)	1294	ev_io_start (EV_P_ struct ev_io *w)
899	{	1295	{
900	int fd = w->fd;	1296	int fd = w->fd;
901		1297
902	if (ev_is_active (w))	1298	if (ev_is_active (w))
903	return;	1299	return;
904		1300
905	assert (("ev_io_start called with negative fd", fd >= 0));	1301	assert (("ev_io_start called with negative fd", fd >= 0));
906		1302
907	ev_start ((W)w, 1);	1303	ev_start (EV_A_ (W)w, 1);
908	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1304	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
909	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1305	wlist_add ((WL *)&anfds[fd].head, (WL)w);
910		1306
911	fd_change (fd);	1307	fd_change (EV_A_ fd);
912	}	1308	}
913		1309
914	void	1310	void
915	ev_io_stop (struct ev_io *w)	1311	ev_io_stop (EV_P_ struct ev_io *w)
916	{	1312	{
917	ev_clear_pending ((W)w);	1313	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1314	if (!ev_is_active (w))
919	return;	1315	return;
920		1316
		1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1318
921	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
922	ev_stop ((W)w);	1320	ev_stop (EV_A_ (W)w);
923		1321
924	fd_change (w->fd);	1322	fd_change (EV_A_ w->fd);
925	}	1323	}
926		1324
927	void	1325	void
928	ev_timer_start (struct ev_timer *w)	1326	ev_timer_start (EV_P_ struct ev_timer *w)
929	{	1327	{
930	if (ev_is_active (w))	1328	if (ev_is_active (w))
931	return;	1329	return;
932		1330
933	w->at += now;	1331	((WT)w)->at += mn_now;
934		1332
935	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1333	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
936		1334
937	ev_start ((W)w, ++timercnt);	1335	ev_start (EV_A_ (W)w, ++timercnt);
938	array_needsize (timers, timermax, timercnt, );	1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
939	timers [timercnt - 1] = w;	1337	timers [timercnt - 1] = w;
940	upheap ((WT *)timers, timercnt - 1);	1338	upheap ((WT *)timers, timercnt - 1);
941	}
942		1339
		1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1341	}
		1342
943	void	1343	void
944	ev_timer_stop (struct ev_timer *w)	1344	ev_timer_stop (EV_P_ struct ev_timer *w)
945	{	1345	{
946	ev_clear_pending ((W)w);	1346	ev_clear_pending (EV_A_ (W)w);
947	if (!ev_is_active (w))	1347	if (!ev_is_active (w))
948	return;	1348	return;
949		1349
		1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1351
950	if (w->active < timercnt--)	1352	if (((W)w)->active < timercnt--)
951	{	1353	{
952	timers [w->active - 1] = timers [timercnt];	1354	timers [((W)w)->active - 1] = timers [timercnt];
953	downheap ((WT *)timers, timercnt, w->active - 1);	1355	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
954	}	1356	}
955		1357
956	w->at = w->repeat;	1358	((WT)w)->at -= mn_now;
957		1359
958	ev_stop ((W)w);	1360	ev_stop (EV_A_ (W)w);
959	}	1361	}
960		1362
961	void	1363	void
962	ev_timer_again (struct ev_timer *w)	1364	ev_timer_again (EV_P_ struct ev_timer *w)
963	{	1365	{
964	if (ev_is_active (w))	1366	if (ev_is_active (w))
965	{	1367	{
966	if (w->repeat)	1368	if (w->repeat)
967	{
968	w->at = now + w->repeat;
969	downheap ((WT *)timers, timercnt, w->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
970	}
971	else	1370	else
972	ev_timer_stop (w);	1371	ev_timer_stop (EV_A_ w);
973	}	1372	}
974	else if (w->repeat)	1373	else if (w->repeat)
975	ev_timer_start (w);	1374	ev_timer_start (EV_A_ w);
976	}	1375	}
977		1376
		1377	#if EV_PERIODICS
978	void	1378	void
979	ev_periodic_start (struct ev_periodic *w)	1379	ev_periodic_start (EV_P_ struct ev_periodic *w)
980	{	1380	{
981	if (ev_is_active (w))	1381	if (ev_is_active (w))
982	return;	1382	return;
983		1383
		1384	if (w->reschedule_cb)
		1385	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1386	else if (w->interval)
		1387	{
984	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1388	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
985
986	/* this formula differs from the one in periodic_reify because we do not always round up */	1389	/* this formula differs from the one in periodic_reify because we do not always round up */
987	if (w->interval)
988	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1390	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1391	}
989		1392
990	ev_start ((W)w, ++periodiccnt);	1393	ev_start (EV_A_ (W)w, ++periodiccnt);
991	array_needsize (periodics, periodicmax, periodiccnt, );	1394	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
992	periodics [periodiccnt - 1] = w;	1395	periodics [periodiccnt - 1] = w;
993	upheap ((WT *)periodics, periodiccnt - 1);	1396	upheap ((WT *)periodics, periodiccnt - 1);
994	}
995		1397
		1398	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1399	}
		1400
996	void	1401	void
997	ev_periodic_stop (struct ev_periodic *w)	1402	ev_periodic_stop (EV_P_ struct ev_periodic *w)
998	{	1403	{
999	ev_clear_pending ((W)w);	1404	ev_clear_pending (EV_A_ (W)w);
1000	if (!ev_is_active (w))	1405	if (!ev_is_active (w))
1001	return;	1406	return;
1002		1407
		1408	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1409
1003	if (w->active < periodiccnt--)	1410	if (((W)w)->active < periodiccnt--)
1004	{	1411	{
1005	periodics [w->active - 1] = periodics [periodiccnt];	1412	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1006	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1413	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1007	}	1414	}
1008		1415
1009	ev_stop ((W)w);	1416	ev_stop (EV_A_ (W)w);
1010	}	1417	}
1011		1418
1012	void	1419	void
		1420	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1421	{
		1422	/* TODO: use adjustheap and recalculation */
		1423	ev_periodic_stop (EV_A_ w);
		1424	ev_periodic_start (EV_A_ w);
		1425	}
		1426	#endif
		1427
		1428	void
1013	ev_signal_start (struct ev_signal *w)	1429	ev_idle_start (EV_P_ struct ev_idle *w)
1014	{	1430	{
1015	if (ev_is_active (w))	1431	if (ev_is_active (w))
1016	return;	1432	return;
1017		1433
		1434	ev_start (EV_A_ (W)w, ++idlecnt);
		1435	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1436	idles [idlecnt - 1] = w;
		1437	}
		1438
		1439	void
		1440	ev_idle_stop (EV_P_ struct ev_idle *w)
		1441	{
		1442	ev_clear_pending (EV_A_ (W)w);
		1443	if (ev_is_active (w))
		1444	return;
		1445
		1446	idles [((W)w)->active - 1] = idles [--idlecnt];
		1447	ev_stop (EV_A_ (W)w);
		1448	}
		1449
		1450	void
		1451	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1452	{
		1453	if (ev_is_active (w))
		1454	return;
		1455
		1456	ev_start (EV_A_ (W)w, ++preparecnt);
		1457	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1458	prepares [preparecnt - 1] = w;
		1459	}
		1460
		1461	void
		1462	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1463	{
		1464	ev_clear_pending (EV_A_ (W)w);
		1465	if (ev_is_active (w))
		1466	return;
		1467
		1468	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1469	ev_stop (EV_A_ (W)w);
		1470	}
		1471
		1472	void
		1473	ev_check_start (EV_P_ struct ev_check *w)
		1474	{
		1475	if (ev_is_active (w))
		1476	return;
		1477
		1478	ev_start (EV_A_ (W)w, ++checkcnt);
		1479	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1480	checks [checkcnt - 1] = w;
		1481	}
		1482
		1483	void
		1484	ev_check_stop (EV_P_ struct ev_check *w)
		1485	{
		1486	ev_clear_pending (EV_A_ (W)w);
		1487	if (!ev_is_active (w))
		1488	return;
		1489
		1490	checks [((W)w)->active - 1] = checks [--checkcnt];
		1491	ev_stop (EV_A_ (W)w);
		1492	}
		1493
		1494	#ifndef SA_RESTART
		1495	# define SA_RESTART 0
		1496	#endif
		1497
		1498	void
		1499	ev_signal_start (EV_P_ struct ev_signal *w)
		1500	{
		1501	#if EV_MULTIPLICITY
		1502	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1503	#endif
		1504	if (ev_is_active (w))
		1505	return;
		1506
1018	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1507	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1019		1508
1020	ev_start ((W)w, 1);	1509	ev_start (EV_A_ (W)w, 1);
1021	array_needsize (signals, signalmax, w->signum, signals_init);	1510	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1022	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1511	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1023		1512
1024	if (!w->next)	1513	if (!((WL)w)->next)
1025	{	1514	{
		1515	#if WIN32
		1516	signal (w->signum, sighandler);
		1517	#else
1026	struct sigaction sa;	1518	struct sigaction sa;
1027	sa.sa_handler = sighandler;	1519	sa.sa_handler = sighandler;
1028	sigfillset (&sa.sa_mask);	1520	sigfillset (&sa.sa_mask);
1029	sa.sa_flags = 0;	1521	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1030	sigaction (w->signum, &sa, 0);	1522	sigaction (w->signum, &sa, 0);
		1523	#endif
1031	}	1524	}
1032	}	1525	}
1033		1526
1034	void	1527	void
1035	ev_signal_stop (struct ev_signal *w)	1528	ev_signal_stop (EV_P_ struct ev_signal *w)
1036	{	1529	{
1037	ev_clear_pending ((W)w);	1530	ev_clear_pending (EV_A_ (W)w);
1038	if (!ev_is_active (w))	1531	if (!ev_is_active (w))
1039	return;	1532	return;
1040		1533
1041	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1534	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1042	ev_stop ((W)w);	1535	ev_stop (EV_A_ (W)w);
1043		1536
1044	if (!signals [w->signum - 1].head)	1537	if (!signals [w->signum - 1].head)
1045	signal (w->signum, SIG_DFL);	1538	signal (w->signum, SIG_DFL);
1046	}	1539	}
1047		1540
1048	void	1541	void
1049	ev_idle_start (struct ev_idle *w)	1542	ev_child_start (EV_P_ struct ev_child *w)
1050	{	1543	{
		1544	#if EV_MULTIPLICITY
		1545	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1546	#endif
1051	if (ev_is_active (w))	1547	if (ev_is_active (w))
1052	return;	1548	return;
1053		1549
1054	ev_start ((W)w, ++idlecnt);
1055	array_needsize (idles, idlemax, idlecnt, );
1056	idles [idlecnt - 1] = w;
1057	}
1058
1059	void
1060	ev_idle_stop (struct ev_idle *w)
1061	{
1062	ev_clear_pending ((W)w);
1063	if (ev_is_active (w))
1064	return;
1065
1066	idles [w->active - 1] = idles [--idlecnt];
1067	ev_stop ((W)w);
1068	}
1069
1070	void
1071	ev_prepare_start (struct ev_prepare *w)
1072	{
1073	if (ev_is_active (w))
1074	return;
1075
1076	ev_start ((W)w, ++preparecnt);
1077	array_needsize (prepares, preparemax, preparecnt, );
1078	prepares [preparecnt - 1] = w;
1079	}
1080
1081	void
1082	ev_prepare_stop (struct ev_prepare *w)
1083	{
1084	ev_clear_pending ((W)w);
1085	if (ev_is_active (w))
1086	return;
1087
1088	prepares [w->active - 1] = prepares [--preparecnt];
1089	ev_stop ((W)w);
1090	}
1091
1092	void
1093	ev_check_start (struct ev_check *w)
1094	{
1095	if (ev_is_active (w))
1096	return;
1097
1098	ev_start ((W)w, ++checkcnt);
1099	array_needsize (checks, checkmax, checkcnt, );
1100	checks [checkcnt - 1] = w;
1101	}
1102
1103	void
1104	ev_check_stop (struct ev_check *w)
1105	{
1106	ev_clear_pending ((W)w);
1107	if (ev_is_active (w))
1108	return;
1109
1110	checks [w->active - 1] = checks [--checkcnt];
1111	ev_stop ((W)w);
1112	}
1113
1114	void
1115	ev_child_start (struct ev_child *w)
1116	{
1117	if (ev_is_active (w))
1118	return;
1119
1120	ev_start ((W)w, 1);	1550	ev_start (EV_A_ (W)w, 1);
1121	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1551	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1122	}	1552	}
1123		1553
1124	void	1554	void
1125	ev_child_stop (struct ev_child *w)	1555	ev_child_stop (EV_P_ struct ev_child *w)
1126	{	1556	{
1127	ev_clear_pending ((W)w);	1557	ev_clear_pending (EV_A_ (W)w);
1128	if (ev_is_active (w))	1558	if (!ev_is_active (w))
1129	return;	1559	return;
1130		1560
1131	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1561	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1132	ev_stop ((W)w);	1562	ev_stop (EV_A_ (W)w);
1133	}	1563	}
1134		1564
1135	/*****************************************************************************/	1565	/*****************************************************************************/
1136		1566
1137	struct ev_once	1567	struct ev_once
…		…
1141	void (cb)(int revents, void arg);	1571	void (cb)(int revents, void arg);
1142	void *arg;	1572	void *arg;
1143	};	1573	};
1144		1574
1145	static void	1575	static void
1146	once_cb (struct ev_once *once, int revents)	1576	once_cb (EV_P_ struct ev_once *once, int revents)
1147	{	1577	{
1148	void (cb)(int revents, void arg) = once->cb;	1578	void (cb)(int revents, void arg) = once->cb;
1149	void *arg = once->arg;	1579	void *arg = once->arg;
1150		1580
1151	ev_io_stop (&once->io);	1581	ev_io_stop (EV_A_ &once->io);
1152	ev_timer_stop (&once->to);	1582	ev_timer_stop (EV_A_ &once->to);
1153	free (once);	1583	ev_free (once);
1154		1584
1155	cb (revents, arg);	1585	cb (revents, arg);
1156	}	1586	}
1157		1587
1158	static void	1588	static void
1159	once_cb_io (struct ev_io *w, int revents)	1589	once_cb_io (EV_P_ struct ev_io *w, int revents)
1160	{	1590	{
1161	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1591	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1162	}	1592	}
1163		1593
1164	static void	1594	static void
1165	once_cb_to (struct ev_timer *w, int revents)	1595	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1166	{	1596	{
1167	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1597	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1168	}	1598	}
1169		1599
1170	void	1600	void
1171	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1601	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1172	{	1602	{
1173	struct ev_once *once = malloc (sizeof (struct ev_once));	1603	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1174		1604
1175	if (!once)	1605	if (!once)
1176	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1606	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1177	else	1607	else
1178	{	1608	{
1179	once->cb = cb;	1609	once->cb = cb;
1180	once->arg = arg;	1610	once->arg = arg;
1181		1611
1182	ev_watcher_init (&once->io, once_cb_io);	1612	ev_init (&once->io, once_cb_io);
1183	if (fd >= 0)	1613	if (fd >= 0)
1184	{	1614	{
1185	ev_io_set (&once->io, fd, events);	1615	ev_io_set (&once->io, fd, events);
1186	ev_io_start (&once->io);	1616	ev_io_start (EV_A_ &once->io);
1187	}	1617	}
1188		1618
1189	ev_watcher_init (&once->to, once_cb_to);	1619	ev_init (&once->to, once_cb_to);
1190	if (timeout >= 0.)	1620	if (timeout >= 0.)
1191	{	1621	{
1192	ev_timer_set (&once->to, timeout, 0.);	1622	ev_timer_set (&once->to, timeout, 0.);
1193	ev_timer_start (&once->to);	1623	ev_timer_start (EV_A_ &once->to);
1194	}	1624	}
1195	}	1625	}
1196	}	1626	}
1197		1627
1198	/*****************************************************************************/	1628	#ifdef __cplusplus
1199
1200	#if 0
1201
1202	struct ev_io wio;
1203
1204	static void
1205	sin_cb (struct ev_io *w, int revents)
1206	{
1207	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1208	}	1629	}
1209
1210	static void
1211	ocb (struct ev_timer *w, int revents)
1212	{
1213	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1214	ev_timer_stop (w);
1215	ev_timer_start (w);
1216	}
1217
1218	static void
1219	scb (struct ev_signal *w, int revents)
1220	{
1221	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1222	ev_io_stop (&wio);
1223	ev_io_start (&wio);
1224	}
1225
1226	static void
1227	gcb (struct ev_signal *w, int revents)
1228	{
1229	fprintf (stderr, "generic %x\n", revents);
1230
1231	}
1232
1233	int main (void)
1234	{
1235	ev_init (0);
1236
1237	ev_io_init (&wio, sin_cb, 0, EV_READ);
1238	ev_io_start (&wio);
1239
1240	struct ev_timer t[10000];
1241
1242	#if 0
1243	int i;
1244	for (i = 0; i < 10000; ++i)
1245	{
1246	struct ev_timer *w = t + i;
1247	ev_watcher_init (w, ocb, i);
1248	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1249	ev_timer_start (w);
1250	if (drand48 () < 0.5)
1251	ev_timer_stop (w);
1252	}
1253	#endif	1630	#endif
1254		1631
1255	struct ev_timer t1;
1256	ev_timer_init (&t1, ocb, 5, 10);
1257	ev_timer_start (&t1);
1258
1259	struct ev_signal sig;
1260	ev_signal_init (&sig, scb, SIGQUIT);
1261	ev_signal_start (&sig);
1262
1263	struct ev_check cw;
1264	ev_check_init (&cw, gcb);
1265	ev_check_start (&cw);
1266
1267	struct ev_idle iw;
1268	ev_idle_init (&iw, gcb);
1269	ev_idle_start (&iw);
1270
1271	ev_loop (0);
1272
1273	return 0;
1274	}
1275
1276	#endif
1277
1278
1279
1280

Diff Legend

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

Comparing libev/ev.c (file contents): Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs. Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.45 by root, Sat Nov 3 09:19:58 2007 UTC vs.
Revision 1.97 by root, Sun Nov 11 01:53:07 2007 UTC