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

Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.85 by root, Sat Nov 10 03:13:50 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	#ifndef EV_STANDALONE
32	# include "config.h"	32	# include "config.h"
		33
		34	# if HAVE_CLOCK_GETTIME
		35	# define EV_USE_MONOTONIC 1
		36	# define EV_USE_REALTIME 1
		37	# endif
		38
		39	# if HAVE_SELECT && HAVE_SYS_SELECT_H
		40	# define EV_USE_SELECT 1
		41	# endif
		42
		43	# if HAVE_POLL && HAVE_POLL_H
		44	# define EV_USE_POLL 1
		45	# endif
		46
		47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
		48	# define EV_USE_EPOLL 1
		49	# endif
		50
		51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
		52	# define EV_USE_KQUEUE 1
		53	# endif
		54
33	#endif	55	#endif
34		56
35	#include <math.h>	57	#include <math.h>
36	#include <stdlib.h>	58	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	59	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	60	#include <stddef.h>
41		61
42	#include <stdio.h>	62	#include <stdio.h>
43		63
44	#include <assert.h>	64	#include <assert.h>
45	#include <errno.h>	65	#include <errno.h>
46	#include <sys/types.h>	66	#include <sys/types.h>
47	#include <sys/wait.h>
48	#include <sys/time.h>
49	#include <time.h>	67	#include <time.h>
50		68
		69	#include <signal.h>
		70
		71	#ifndef WIN32
		72	# include <unistd.h>
		73	# include <sys/time.h>
		74	# include <sys/wait.h>
		75	#endif
51	/**/	76	/**/
52		77
53	#ifndef EV_USE_MONOTONIC	78	#ifndef EV_USE_MONOTONIC
54	# define EV_USE_MONOTONIC 1	79	# define EV_USE_MONOTONIC 1
55	#endif	80	#endif
…		…
62	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */
63	#endif	88	#endif
64		89
65	#ifndef EV_USE_EPOLL	90	#ifndef EV_USE_EPOLL
66	# define EV_USE_EPOLL 0	91	# define EV_USE_EPOLL 0
		92	#endif
		93
		94	#ifndef EV_USE_KQUEUE
		95	# define EV_USE_KQUEUE 0
		96	#endif
		97
		98	#ifndef EV_USE_WIN32
		99	# ifdef WIN32
		100	# define EV_USE_WIN32 0 /* it does not exist, use select */
		101	# undef EV_USE_SELECT
		102	# define EV_USE_SELECT 1
		103	# else
		104	# define EV_USE_WIN32 0
		105	# endif
67	#endif	106	#endif
68		107
69	#ifndef EV_USE_REALTIME	108	#ifndef EV_USE_REALTIME
70	# define EV_USE_REALTIME 1	109	# define EV_USE_REALTIME 1
71	#endif	110	#endif
…		…
87	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
88	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	127	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
89	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	128	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
90	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	129	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
91		130
		131	#ifdef EV_H
		132	# include EV_H
		133	#else
92	#include "ev.h"	134	# include "ev.h"
		135	#endif
93		136
94	#if __GNUC__ >= 3	137	#if __GNUC__ >= 3
95	# define expect(expr,value) __builtin_expect ((expr),(value))	138	# define expect(expr,value) __builtin_expect ((expr),(value))
96	# define inline inline	139	# define inline inline
97	#else	140	#else
…		…
100	#endif	143	#endif
101		144
102	#define expect_false(expr) expect ((expr) != 0, 0)	145	#define expect_false(expr) expect ((expr) != 0, 0)
103	#define expect_true(expr) expect ((expr) != 0, 1)	146	#define expect_true(expr) expect ((expr) != 0, 1)
104		147
		148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
		149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
		150
105	typedef struct ev_watcher *W;	151	typedef struct ev_watcher *W;
106	typedef struct ev_watcher_list *WL;	152	typedef struct ev_watcher_list *WL;
107	typedef struct ev_watcher_time *WT;	153	typedef struct ev_watcher_time *WT;
108		154
109	static ev_tstamp now_floor, now, diff; /* monotonic clock */	155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
110	ev_tstamp ev_now;
111	int ev_method;
112		156
113	static int have_monotonic; /* runtime */	157	#include "ev_win32.c"
114
115	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
116	static void (*method_modify)(int fd, int oev, int nev);
117	static void (*method_poll)(ev_tstamp timeout);
118		158
119	/*****************************************************************************/	159	/*****************************************************************************/
120		160
121	ev_tstamp	161	static void (syserr_cb)(const char msg);
		162
		163	void ev_set_syserr_cb (void (cb)(const char msg))
		164	{
		165	syserr_cb = cb;
		166	}
		167
		168	static void
		169	syserr (const char *msg)
		170	{
		171	if (!msg)
		172	msg = "(libev) system error";
		173
		174	if (syserr_cb)
		175	syserr_cb (msg);
		176	else
		177	{
		178	perror (msg);
		179	abort ();
		180	}
		181	}
		182
		183	static void (alloc)(void *ptr, long size);
		184
		185	void ev_set_allocator (void (cb)(void *ptr, long size))
		186	{
		187	alloc = cb;
		188	}
		189
		190	static void *
		191	ev_realloc (void *ptr, long size)
		192	{
		193	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		194
		195	if (!ptr && size)
		196	{
		197	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		198	abort ();
		199	}
		200
		201	return ptr;
		202	}
		203
		204	#define ev_malloc(size) ev_realloc (0, (size))
		205	#define ev_free(ptr) ev_realloc ((ptr), 0)
		206
		207	/*****************************************************************************/
		208
		209	typedef struct
		210	{
		211	WL head;
		212	unsigned char events;
		213	unsigned char reify;
		214	} ANFD;
		215
		216	typedef struct
		217	{
		218	W w;
		219	int events;
		220	} ANPENDING;
		221
		222	#if EV_MULTIPLICITY
		223
		224	struct ev_loop
		225	{
		226	#define VAR(name,decl) decl;
		227	#include "ev_vars.h"
		228	#undef VAR
		229	};
		230	#include "ev_wrap.h"
		231
		232	struct ev_loop default_loop_struct;
		233	static struct ev_loop *default_loop;
		234
		235	#else
		236
		237	#define VAR(name,decl) static decl;
		238	#include "ev_vars.h"
		239	#undef VAR
		240
		241	static int default_loop;
		242
		243	#endif
		244
		245	/*****************************************************************************/
		246
		247	inline ev_tstamp
122	ev_time (void)	248	ev_time (void)
123	{	249	{
124	#if EV_USE_REALTIME	250	#if EV_USE_REALTIME
125	struct timespec ts;	251	struct timespec ts;
126	clock_gettime (CLOCK_REALTIME, &ts);	252	clock_gettime (CLOCK_REALTIME, &ts);
…		…
130	gettimeofday (&tv, 0);	256	gettimeofday (&tv, 0);
131	return tv.tv_sec + tv.tv_usec * 1e-6;	257	return tv.tv_sec + tv.tv_usec * 1e-6;
132	#endif	258	#endif
133	}	259	}
134		260
135	static ev_tstamp	261	inline ev_tstamp
136	get_clock (void)	262	get_clock (void)
137	{	263	{
138	#if EV_USE_MONOTONIC	264	#if EV_USE_MONOTONIC
139	if (expect_true (have_monotonic))	265	if (expect_true (have_monotonic))
140	{	266	{
…		…
145	#endif	271	#endif
146		272
147	return ev_time ();	273	return ev_time ();
148	}	274	}
149		275
		276	#if EV_MULTIPLICITY
		277	ev_tstamp
		278	ev_now (EV_P)
		279	{
		280	return ev_rt_now;
		281	}
		282	#endif
		283
150	#define array_roundsize(base,n) ((n) \| 4 & ~3)	284	#define array_roundsize(type,n) ((n) \| 4 & ~3)
151		285
152	#define array_needsize(base,cur,cnt,init) \	286	#define array_needsize(type,base,cur,cnt,init) \
153	if (expect_false ((cnt) > cur)) \	287	if (expect_false ((cnt) > cur)) \
154	{ \	288	{ \
155	int newcnt = cur; \	289	int newcnt = cur; \
156	do \	290	do \
157	{ \	291	{ \
158	newcnt = array_roundsize (base, newcnt << 1); \	292	newcnt = array_roundsize (type, newcnt << 1); \
159	} \	293	} \
160	while ((cnt) > newcnt); \	294	while ((cnt) > newcnt); \
161	\	295	\
162	base = realloc (base, sizeof (base) (newcnt)); \	296	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
163	init (base + cur, newcnt - cur); \	297	init (base + cur, newcnt - cur); \
164	cur = newcnt; \	298	cur = newcnt; \
165	}	299	}
		300
		301	#define array_slim(type,stem) \
		302	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		303	{ \
		304	stem ## max = array_roundsize (stem ## cnt >> 1); \
		305	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		306	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		307	}
		308
		309	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		310	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		311	#define array_free_microshit(stem) \
		312	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		313
		314	#define array_free(stem, idx) \
		315	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
166		316
167	/*****************************************************************************/	317	/*****************************************************************************/
168
169	typedef struct
170	{
171	struct ev_io *head;
172	unsigned char events;
173	unsigned char reify;
174	} ANFD;
175
176	static ANFD *anfds;
177	static int anfdmax;
178		318
179	static void	319	static void
180	anfds_init (ANFD *base, int count)	320	anfds_init (ANFD *base, int count)
181	{	321	{
182	while (count--)	322	while (count--)
…		…
187		327
188	++base;	328	++base;
189	}	329	}
190	}	330	}
191		331
192	typedef struct	332	void
		333	ev_feed_event (EV_P_ void *w, int revents)
193	{	334	{
194	W w;	335	W w_ = (W)w;
195	int events;
196	} ANPENDING;
197		336
198	static ANPENDING *pendings;
199	static int pendingmax, pendingcnt;
200
201	static void
202	event (W w, int events)
203	{
204	if (w->pending)	337	if (w_->pending)
205	{	338	{
206	pendings [w->pending - 1].events \|= events;	339	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
207	return;	340	return;
208	}	341	}
209		342
210	w->pending = ++pendingcnt;	343	w_->pending = ++pendingcnt [ABSPRI (w_)];
211	array_needsize (pendings, pendingmax, pendingcnt, );	344	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
212	pendings [pendingcnt - 1].w = w;	345	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
213	pendings [pendingcnt - 1].events = events;	346	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
214	}	347	}
215		348
216	static void	349	static void
217	queue_events (W *events, int eventcnt, int type)	350	queue_events (EV_P_ W *events, int eventcnt, int type)
218	{	351	{
219	int i;	352	int i;
220		353
221	for (i = 0; i < eventcnt; ++i)	354	for (i = 0; i < eventcnt; ++i)
222	event (events [i], type);	355	ev_feed_event (EV_A_ events [i], type);
223	}	356	}
224		357
225	static void	358	inline void
226	fd_event (int fd, int events)	359	fd_event (EV_P_ int fd, int revents)
227	{	360	{
228	ANFD *anfd = anfds + fd;	361	ANFD *anfd = anfds + fd;
229	struct ev_io *w;	362	struct ev_io *w;
230		363
231	for (w = anfd->head; w; w = w->next)	364	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
232	{	365	{
233	int ev = w->events & events;	366	int ev = w->events & revents;
234		367
235	if (ev)	368	if (ev)
236	event ((W)w, ev);	369	ev_feed_event (EV_A_ (W)w, ev);
237	}	370	}
		371	}
		372
		373	void
		374	ev_feed_fd_event (EV_P_ int fd, int revents)
		375	{
		376	fd_event (EV_A_ fd, revents);
238	}	377	}
239		378
240	/*****************************************************************************/	379	/*****************************************************************************/
241		380
242	static int *fdchanges;
243	static int fdchangemax, fdchangecnt;
244
245	static void	381	static void
246	fd_reify (void)	382	fd_reify (EV_P)
247	{	383	{
248	int i;	384	int i;
249		385
250	for (i = 0; i < fdchangecnt; ++i)	386	for (i = 0; i < fdchangecnt; ++i)
251	{	387	{
…		…
253	ANFD *anfd = anfds + fd;	389	ANFD *anfd = anfds + fd;
254	struct ev_io *w;	390	struct ev_io *w;
255		391
256	int events = 0;	392	int events = 0;
257		393
258	for (w = anfd->head; w; w = w->next)	394	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
259	events \|= w->events;	395	events \|= w->events;
260		396
261	anfd->reify = 0;	397	anfd->reify = 0;
262		398
263	if (anfd->events != events)
264	{
265	method_modify (fd, anfd->events, events);	399	method_modify (EV_A_ fd, anfd->events, events);
266	anfd->events = events;	400	anfd->events = events;
267	}
268	}	401	}
269		402
270	fdchangecnt = 0;	403	fdchangecnt = 0;
271	}	404	}
272		405
273	static void	406	static void
274	fd_change (int fd)	407	fd_change (EV_P_ int fd)
275	{	408	{
276	if (anfds [fd].reify \|\| fdchangecnt < 0)	409	if (anfds [fd].reify)
277	return;	410	return;
278		411
279	anfds [fd].reify = 1;	412	anfds [fd].reify = 1;
280		413
281	++fdchangecnt;	414	++fdchangecnt;
282	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	415	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
283	fdchanges [fdchangecnt - 1] = fd;	416	fdchanges [fdchangecnt - 1] = fd;
284	}	417	}
285		418
286	static void	419	static void
287	fd_kill (int fd)	420	fd_kill (EV_P_ int fd)
288	{	421	{
289	struct ev_io *w;	422	struct ev_io *w;
290		423
291	printf ("killing fd %d\n", fd);//D
292	while ((w = anfds [fd].head))	424	while ((w = (struct ev_io *)anfds [fd].head))
293	{	425	{
294	ev_io_stop (w);	426	ev_io_stop (EV_A_ w);
295	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	427	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
296	}	428	}
		429	}
		430
		431	static int
		432	fd_valid (int fd)
		433	{
		434	#ifdef WIN32
		435	return !!win32_get_osfhandle (fd);
		436	#else
		437	return fcntl (fd, F_GETFD) != -1;
		438	#endif
297	}	439	}
298		440
299	/* called on EBADF to verify fds */	441	/* called on EBADF to verify fds */
300	static void	442	static void
301	fd_ebadf (void)	443	fd_ebadf (EV_P)
302	{	444	{
303	int fd;	445	int fd;
304		446
305	for (fd = 0; fd < anfdmax; ++fd)	447	for (fd = 0; fd < anfdmax; ++fd)
306	if (anfds [fd].events)	448	if (anfds [fd].events)
307	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	449	if (!fd_valid (fd) == -1 && errno == EBADF)
308	fd_kill (fd);	450	fd_kill (EV_A_ fd);
309	}	451	}
310		452
311	/* called on ENOMEM in select/poll to kill some fds and retry */	453	/* called on ENOMEM in select/poll to kill some fds and retry */
312	static void	454	static void
313	fd_enomem (void)	455	fd_enomem (EV_P)
314	{	456	{
315	int fd = anfdmax;	457	int fd;
316		458
317	while (fd--)	459	for (fd = anfdmax; fd--; )
318	if (anfds [fd].events)	460	if (anfds [fd].events)
319	{	461	{
320	close (fd);
321	fd_kill (fd);	462	fd_kill (EV_A_ fd);
322	return;	463	return;
323	}	464	}
324	}	465	}
325		466
		467	/* usually called after fork if method needs to re-arm all fds from scratch */
		468	static void
		469	fd_rearm_all (EV_P)
		470	{
		471	int fd;
		472
		473	/* this should be highly optimised to not do anything but set a flag */
		474	for (fd = 0; fd < anfdmax; ++fd)
		475	if (anfds [fd].events)
		476	{
		477	anfds [fd].events = 0;
		478	fd_change (EV_A_ fd);
		479	}
		480	}
		481
326	/*****************************************************************************/	482	/*****************************************************************************/
327		483
328	static struct ev_timer **timers;
329	static int timermax, timercnt;
330
331	static struct ev_periodic **periodics;
332	static int periodicmax, periodiccnt;
333
334	static void	484	static void
335	upheap (WT *timers, int k)	485	upheap (WT *heap, int k)
336	{	486	{
337	WT w = timers [k];	487	WT w = heap [k];
338		488
339	while (k && timers [k >> 1]->at > w->at)	489	while (k && heap [k >> 1]->at > w->at)
340	{	490	{
341	timers [k] = timers [k >> 1];	491	heap [k] = heap [k >> 1];
342	timers [k]->active = k + 1;	492	((W)heap [k])->active = k + 1;
343	k >>= 1;	493	k >>= 1;
344	}	494	}
345		495
346	timers [k] = w;	496	heap [k] = w;
347	timers [k]->active = k + 1;	497	((W)heap [k])->active = k + 1;
348		498
349	}	499	}
350		500
351	static void	501	static void
352	downheap (WT *timers, int N, int k)	502	downheap (WT *heap, int N, int k)
353	{	503	{
354	WT w = timers [k];	504	WT w = heap [k];
355		505
356	while (k < (N >> 1))	506	while (k < (N >> 1))
357	{	507	{
358	int j = k << 1;	508	int j = k << 1;
359		509
360	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	510	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
361	++j;	511	++j;
362		512
363	if (w->at <= timers [j]->at)	513	if (w->at <= heap [j]->at)
364	break;	514	break;
365		515
366	timers [k] = timers [j];	516	heap [k] = heap [j];
367	timers [k]->active = k + 1;	517	((W)heap [k])->active = k + 1;
368	k = j;	518	k = j;
369	}	519	}
370		520
371	timers [k] = w;	521	heap [k] = w;
372	timers [k]->active = k + 1;	522	((W)heap [k])->active = k + 1;
		523	}
		524
		525	inline void
		526	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		527	{
		528	ev_tstamp old_at = heap [k]->at;
		529	heap [k]->at = at;
		530
		531	if (old_at < at)
		532	downheap (heap, N, k);
		533	else
		534	upheap (heap, k);
373	}	535	}
374		536
375	/*****************************************************************************/	537	/*****************************************************************************/
376		538
377	typedef struct	539	typedef struct
378	{	540	{
379	struct ev_signal *head;	541	WL head;
380	sig_atomic_t volatile gotsig;	542	sig_atomic_t volatile gotsig;
381	} ANSIG;	543	} ANSIG;
382		544
383	static ANSIG *signals;	545	static ANSIG *signals;
384	static int signalmax;	546	static int signalmax;
…		…
400	}	562	}
401		563
402	static void	564	static void
403	sighandler (int signum)	565	sighandler (int signum)
404	{	566	{
		567	#if WIN32
		568	signal (signum, sighandler);
		569	#endif
		570
405	signals [signum - 1].gotsig = 1;	571	signals [signum - 1].gotsig = 1;
406		572
407	if (!gotsig)	573	if (!gotsig)
408	{	574	{
		575	int old_errno = errno;
409	gotsig = 1;	576	gotsig = 1;
		577	#ifdef WIN32
		578	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		579	#else
410	write (sigpipe [1], &signum, 1);	580	write (sigpipe [1], &signum, 1);
		581	#endif
		582	errno = old_errno;
411	}	583	}
412	}	584	}
413		585
		586	void
		587	ev_feed_signal_event (EV_P_ int signum)
		588	{
		589	WL w;
		590
		591	#if EV_MULTIPLICITY
		592	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		593	#endif
		594
		595	--signum;
		596
		597	if (signum < 0 \|\| signum >= signalmax)
		598	return;
		599
		600	signals [signum].gotsig = 0;
		601
		602	for (w = signals [signum].head; w; w = w->next)
		603	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		604	}
		605
414	static void	606	static void
415	sigcb (struct ev_io *iow, int revents)	607	sigcb (EV_P_ struct ev_io *iow, int revents)
416	{	608	{
417	struct ev_signal *w;
418	int signum;	609	int signum;
419		610
		611	#ifdef WIN32
		612	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		613	#else
420	read (sigpipe [0], &revents, 1);	614	read (sigpipe [0], &revents, 1);
		615	#endif
421	gotsig = 0;	616	gotsig = 0;
422		617
423	for (signum = signalmax; signum--; )	618	for (signum = signalmax; signum--; )
424	if (signals [signum].gotsig)	619	if (signals [signum].gotsig)
425	{	620	ev_feed_signal_event (EV_A_ signum + 1);
426	signals [signum].gotsig = 0;
427
428	for (w = signals [signum].head; w; w = w->next)
429	event ((W)w, EV_SIGNAL);
430	}
431	}	621	}
432		622
433	static void	623	static void
434	siginit (void)	624	siginit (EV_P)
435	{	625	{
		626	#ifndef WIN32
436	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	627	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
437	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	628	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
438		629
439	/* rather than sort out wether we really need nb, set it */	630	/* rather than sort out wether we really need nb, set it */
440	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	631	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
441	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	632	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		633	#endif
442		634
443	ev_io_set (&sigev, sigpipe [0], EV_READ);	635	ev_io_set (&sigev, sigpipe [0], EV_READ);
444	ev_io_start (&sigev);	636	ev_io_start (EV_A_ &sigev);
		637	ev_unref (EV_A); /* child watcher should not keep loop alive */
445	}	638	}
446		639
447	/*****************************************************************************/	640	/*****************************************************************************/
448		641
449	static struct ev_idle **idles;
450	static int idlemax, idlecnt;
451
452	static struct ev_prepare **prepares;
453	static int preparemax, preparecnt;
454
455	static struct ev_check **checks;
456	static int checkmax, checkcnt;
457
458	/*****************************************************************************/
459
460	static struct ev_child *childs [PID_HASHSIZE];	642	static struct ev_child *childs [PID_HASHSIZE];
		643
		644	#ifndef WIN32
		645
461	static struct ev_signal childev;	646	static struct ev_signal childev;
462		647
463	#ifndef WCONTINUED	648	#ifndef WCONTINUED
464	# define WCONTINUED 0	649	# define WCONTINUED 0
465	#endif	650	#endif
466		651
467	static void	652	static void
468	childcb (struct ev_signal *sw, int revents)	653	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
469	{	654	{
470	struct ev_child *w;	655	struct ev_child *w;
		656
		657	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		658	if (w->pid == pid \|\| !w->pid)
		659	{
		660	ev_priority (w) = ev_priority (sw); /* need to do it now */
		661	w->rpid = pid;
		662	w->rstatus = status;
		663	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		664	}
		665	}
		666
		667	static void
		668	childcb (EV_P_ struct ev_signal *sw, int revents)
		669	{
471	int pid, status;	670	int pid, status;
472		671
473	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	672	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
474	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	673	{
475	if (w->pid == pid \|\| !w->pid)	674	/* make sure we are called again until all childs have been reaped */
476	{	675	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
477	w->status = status;	676
478	event ((W)w, EV_CHILD);	677	child_reap (EV_A_ sw, pid, pid, status);
479	}	678	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		679	}
480	}	680	}
		681
		682	#endif
481		683
482	/*****************************************************************************/	684	/*****************************************************************************/
483		685
		686	#if EV_USE_KQUEUE
		687	# include "ev_kqueue.c"
		688	#endif
484	#if EV_USE_EPOLL	689	#if EV_USE_EPOLL
485	# include "ev_epoll.c"	690	# include "ev_epoll.c"
486	#endif	691	#endif
487	#if EV_USE_POLL	692	#if EV_USE_POLL
488	# include "ev_poll.c"	693	# include "ev_poll.c"
…		…
501	ev_version_minor (void)	706	ev_version_minor (void)
502	{	707	{
503	return EV_VERSION_MINOR;	708	return EV_VERSION_MINOR;
504	}	709	}
505		710
506	/* return true if we are running with elevated privileges and ignore env variables */	711	/* return true if we are running with elevated privileges and should ignore env variables */
507	static int	712	static int
508	enable_secure ()	713	enable_secure (void)
509	{	714	{
		715	#ifdef WIN32
		716	return 0;
		717	#else
510	return getuid () != geteuid ()	718	return getuid () != geteuid ()
511	\|\| getgid () != getegid ();	719	\|\| getgid () != getegid ();
		720	#endif
512	}	721	}
513		722
514	int ev_init (int methods)	723	int
		724	ev_method (EV_P)
515	{	725	{
		726	return method;
		727	}
		728
		729	static void
		730	loop_init (EV_P_ int methods)
		731	{
516	if (!ev_method)	732	if (!method)
517	{	733	{
518	#if EV_USE_MONOTONIC	734	#if EV_USE_MONOTONIC
519	{	735	{
520	struct timespec ts;	736	struct timespec ts;
521	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	737	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
522	have_monotonic = 1;	738	have_monotonic = 1;
523	}	739	}
524	#endif	740	#endif
525		741
526	ev_now = ev_time ();	742	ev_rt_now = ev_time ();
527	now = get_clock ();	743	mn_now = get_clock ();
528	now_floor = now;	744	now_floor = mn_now;
529	diff = ev_now - now;	745	rtmn_diff = ev_rt_now - mn_now;
530
531	if (pipe (sigpipe))
532	return 0;
533		746
534	if (methods == EVMETHOD_AUTO)	747	if (methods == EVMETHOD_AUTO)
535	if (!enable_secure () && getenv ("LIBEV_METHODS"))	748	if (!enable_secure () && getenv ("LIBEV_METHODS"))
536	methods = atoi (getenv ("LIBEV_METHODS"));	749	methods = atoi (getenv ("LIBEV_METHODS"));
537	else	750	else
538	methods = EVMETHOD_ANY;	751	methods = EVMETHOD_ANY;
539		752
540	ev_method = 0;	753	method = 0;
		754	#if EV_USE_WIN32
		755	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		756	#endif
		757	#if EV_USE_KQUEUE
		758	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		759	#endif
541	#if EV_USE_EPOLL	760	#if EV_USE_EPOLL
542	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	761	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
543	#endif	762	#endif
544	#if EV_USE_POLL	763	#if EV_USE_POLL
545	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	764	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
546	#endif	765	#endif
547	#if EV_USE_SELECT	766	#if EV_USE_SELECT
548	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	767	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
549	#endif	768	#endif
550		769
		770	ev_init (&sigev, sigcb);
		771	ev_set_priority (&sigev, EV_MAXPRI);
		772	}
		773	}
		774
		775	void
		776	loop_destroy (EV_P)
		777	{
		778	int i;
		779
		780	#if EV_USE_WIN32
		781	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		782	#endif
		783	#if EV_USE_KQUEUE
		784	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		785	#endif
		786	#if EV_USE_EPOLL
		787	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		788	#endif
		789	#if EV_USE_POLL
		790	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		791	#endif
		792	#if EV_USE_SELECT
		793	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		794	#endif
		795
		796	for (i = NUMPRI; i--; )
		797	array_free (pending, [i]);
		798
		799	/* have to use the microsoft-never-gets-it-right macro */
		800	array_free_microshit (fdchange);
		801	array_free_microshit (timer);
		802	array_free_microshit (periodic);
		803	array_free_microshit (idle);
		804	array_free_microshit (prepare);
		805	array_free_microshit (check);
		806
		807	method = 0;
		808	}
		809
		810	static void
		811	loop_fork (EV_P)
		812	{
		813	#if EV_USE_EPOLL
		814	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		815	#endif
		816	#if EV_USE_KQUEUE
		817	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		818	#endif
		819
		820	if (ev_is_active (&sigev))
		821	{
		822	/* default loop */
		823
		824	ev_ref (EV_A);
		825	ev_io_stop (EV_A_ &sigev);
		826	close (sigpipe [0]);
		827	close (sigpipe [1]);
		828
		829	while (pipe (sigpipe))
		830	syserr ("(libev) error creating pipe");
		831
		832	siginit (EV_A);
		833	}
		834
		835	postfork = 0;
		836	}
		837
		838	#if EV_MULTIPLICITY
		839	struct ev_loop *
		840	ev_loop_new (int methods)
		841	{
		842	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		843
		844	memset (loop, 0, sizeof (struct ev_loop));
		845
		846	loop_init (EV_A_ methods);
		847
		848	if (ev_method (EV_A))
		849	return loop;
		850
		851	return 0;
		852	}
		853
		854	void
		855	ev_loop_destroy (EV_P)
		856	{
		857	loop_destroy (EV_A);
		858	ev_free (loop);
		859	}
		860
		861	void
		862	ev_loop_fork (EV_P)
		863	{
		864	postfork = 1;
		865	}
		866
		867	#endif
		868
		869	#if EV_MULTIPLICITY
		870	struct ev_loop *
		871	#else
		872	int
		873	#endif
		874	ev_default_loop (int methods)
		875	{
		876	if (sigpipe [0] == sigpipe [1])
		877	if (pipe (sigpipe))
		878	return 0;
		879
		880	if (!default_loop)
		881	{
		882	#if EV_MULTIPLICITY
		883	struct ev_loop *loop = default_loop = &default_loop_struct;
		884	#else
		885	default_loop = 1;
		886	#endif
		887
		888	loop_init (EV_A_ methods);
		889
551	if (ev_method)	890	if (ev_method (EV_A))
552	{	891	{
553	ev_watcher_init (&sigev, sigcb);
554	siginit ();	892	siginit (EV_A);
555		893
		894	#ifndef WIN32
556	ev_signal_init (&childev, childcb, SIGCHLD);	895	ev_signal_init (&childev, childcb, SIGCHLD);
		896	ev_set_priority (&childev, EV_MAXPRI);
557	ev_signal_start (&childev);	897	ev_signal_start (EV_A_ &childev);
		898	ev_unref (EV_A); /* child watcher should not keep loop alive */
		899	#endif
558	}	900	}
		901	else
		902	default_loop = 0;
559	}	903	}
560		904
561	return ev_method;	905	return default_loop;
		906	}
		907
		908	void
		909	ev_default_destroy (void)
		910	{
		911	#if EV_MULTIPLICITY
		912	struct ev_loop *loop = default_loop;
		913	#endif
		914
		915	#ifndef WIN32
		916	ev_ref (EV_A); /* child watcher */
		917	ev_signal_stop (EV_A_ &childev);
		918	#endif
		919
		920	ev_ref (EV_A); /* signal watcher */
		921	ev_io_stop (EV_A_ &sigev);
		922
		923	close (sigpipe [0]); sigpipe [0] = 0;
		924	close (sigpipe [1]); sigpipe [1] = 0;
		925
		926	loop_destroy (EV_A);
		927	}
		928
		929	void
		930	ev_default_fork (void)
		931	{
		932	#if EV_MULTIPLICITY
		933	struct ev_loop *loop = default_loop;
		934	#endif
		935
		936	if (method)
		937	postfork = 1;
562	}	938	}
563		939
564	/*****************************************************************************/	940	/*****************************************************************************/
565		941
566	void
567	ev_fork_prepare (void)
568	{
569	/* nop */
570	}
571
572	void
573	ev_fork_parent (void)
574	{
575	/* nop */
576	}
577
578	void
579	ev_fork_child (void)
580	{
581	#if EV_USE_EPOLL
582	if (ev_method == EVMETHOD_EPOLL)
583	epoll_postfork_child ();
584	#endif
585
586	ev_io_stop (&sigev);
587	close (sigpipe [0]);
588	close (sigpipe [1]);
589	pipe (sigpipe);
590	siginit ();
591	}
592
593	/*****************************************************************************/
594
595	static void	942	static int
		943	any_pending (EV_P)
		944	{
		945	int pri;
		946
		947	for (pri = NUMPRI; pri--; )
		948	if (pendingcnt [pri])
		949	return 1;
		950
		951	return 0;
		952	}
		953
		954	static void
596	call_pending (void)	955	call_pending (EV_P)
597	{	956	{
		957	int pri;
		958
		959	for (pri = NUMPRI; pri--; )
598	while (pendingcnt)	960	while (pendingcnt [pri])
599	{	961	{
600	ANPENDING *p = pendings + --pendingcnt;	962	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
601		963
602	if (p->w)	964	if (p->w)
603	{	965	{
604	p->w->pending = 0;	966	p->w->pending = 0;
605	p->w->cb (p->w, p->events);	967	EV_CB_INVOKE (p->w, p->events);
606	}	968	}
607	}	969	}
608	}	970	}
609		971
610	static void	972	static void
611	timers_reify (void)	973	timers_reify (EV_P)
612	{	974	{
613	while (timercnt && timers [0]->at <= now)	975	while (timercnt && ((WT)timers [0])->at <= mn_now)
614	{	976	{
615	struct ev_timer *w = timers [0];	977	struct ev_timer *w = timers [0];
		978
		979	assert (("inactive timer on timer heap detected", ev_is_active (w)));
616		980
617	/* first reschedule or stop timer */	981	/* first reschedule or stop timer */
618	if (w->repeat)	982	if (w->repeat)
619	{	983	{
620	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	984	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
621	w->at = now + w->repeat;	985	((WT)w)->at = mn_now + w->repeat;
622	downheap ((WT *)timers, timercnt, 0);	986	downheap ((WT *)timers, timercnt, 0);
623	}	987	}
624	else	988	else
625	ev_timer_stop (w); /* nonrepeating: stop timer */	989	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
626		990
627	event ((W)w, EV_TIMEOUT);	991	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
628	}	992	}
629	}	993	}
630		994
631	static void	995	static void
632	periodics_reify (void)	996	periodics_reify (EV_P)
633	{	997	{
634	while (periodiccnt && periodics [0]->at <= ev_now)	998	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
635	{	999	{
636	struct ev_periodic *w = periodics [0];	1000	struct ev_periodic *w = periodics [0];
637		1001
		1002	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1003
638	/* first reschedule or stop timer */	1004	/* first reschedule or stop timer */
639	if (w->interval)	1005	if (w->reschedule_cb)
640	{	1006	{
		1007	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1008
		1009	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1010	downheap ((WT *)periodics, periodiccnt, 0);
		1011	}
		1012	else if (w->interval)
		1013	{
641	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1014	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
642	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1015	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
643	downheap ((WT *)periodics, periodiccnt, 0);	1016	downheap ((WT *)periodics, periodiccnt, 0);
644	}	1017	}
645	else	1018	else
646	ev_periodic_stop (w); /* nonrepeating: stop timer */	1019	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
647		1020
648	event ((W)w, EV_PERIODIC);	1021	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
649	}	1022	}
650	}	1023	}
651		1024
652	static void	1025	static void
653	periodics_reschedule (ev_tstamp diff)	1026	periodics_reschedule (EV_P)
654	{	1027	{
655	int i;	1028	int i;
656		1029
657	/* adjust periodics after time jump */	1030	/* adjust periodics after time jump */
658	for (i = 0; i < periodiccnt; ++i)	1031	for (i = 0; i < periodiccnt; ++i)
659	{	1032	{
660	struct ev_periodic *w = periodics [i];	1033	struct ev_periodic *w = periodics [i];
661		1034
		1035	if (w->reschedule_cb)
		1036	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
662	if (w->interval)	1037	else if (w->interval)
663	{
664	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1038	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
665
666	if (fabs (diff) >= 1e-4)
667	{
668	ev_periodic_stop (w);
669	ev_periodic_start (w);
670
671	i = 0; /* restart loop, inefficient, but time jumps should be rare */
672	}
673	}
674	}	1039	}
675	}
676		1040
677	static int	1041	/* now rebuild the heap */
		1042	for (i = periodiccnt >> 1; i--; )
		1043	downheap ((WT *)periodics, periodiccnt, i);
		1044	}
		1045
		1046	inline int
678	time_update_monotonic (void)	1047	time_update_monotonic (EV_P)
679	{	1048	{
680	now = get_clock ();	1049	mn_now = get_clock ();
681		1050
682	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1051	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
683	{	1052	{
684	ev_now = now + diff;	1053	ev_rt_now = rtmn_diff + mn_now;
685	return 0;	1054	return 0;
686	}	1055	}
687	else	1056	else
688	{	1057	{
689	now_floor = now;	1058	now_floor = mn_now;
690	ev_now = ev_time ();	1059	ev_rt_now = ev_time ();
691	return 1;	1060	return 1;
692	}	1061	}
693	}	1062	}
694		1063
695	static void	1064	static void
696	time_update (void)	1065	time_update (EV_P)
697	{	1066	{
698	int i;	1067	int i;
699		1068
700	#if EV_USE_MONOTONIC	1069	#if EV_USE_MONOTONIC
701	if (expect_true (have_monotonic))	1070	if (expect_true (have_monotonic))
702	{	1071	{
703	if (time_update_monotonic ())	1072	if (time_update_monotonic (EV_A))
704	{	1073	{
705	ev_tstamp odiff = diff;	1074	ev_tstamp odiff = rtmn_diff;
706		1075
707	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1076	for (i = 4; --i; ) /* loop a few times, before making important decisions */
708	{	1077	{
709	diff = ev_now - now;	1078	rtmn_diff = ev_rt_now - mn_now;
710		1079
711	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1080	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
712	return; /* all is well */	1081	return; /* all is well */
713		1082
714	ev_now = ev_time ();	1083	ev_rt_now = ev_time ();
715	now = get_clock ();	1084	mn_now = get_clock ();
716	now_floor = now;	1085	now_floor = mn_now;
717	}	1086	}
718		1087
719	periodics_reschedule (diff - odiff);	1088	periodics_reschedule (EV_A);
720	/* no timer adjustment, as the monotonic clock doesn't jump */	1089	/* no timer adjustment, as the monotonic clock doesn't jump */
		1090	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
721	}	1091	}
722	}	1092	}
723	else	1093	else
724	#endif	1094	#endif
725	{	1095	{
726	ev_now = ev_time ();	1096	ev_rt_now = ev_time ();
727		1097
728	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1098	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
729	{	1099	{
730	periodics_reschedule (ev_now - now);	1100	periodics_reschedule (EV_A);
731		1101
732	/* adjust timers. this is easy, as the offset is the same for all */	1102	/* adjust timers. this is easy, as the offset is the same for all */
733	for (i = 0; i < timercnt; ++i)	1103	for (i = 0; i < timercnt; ++i)
734	timers [i]->at += diff;	1104	((WT)timers [i])->at += ev_rt_now - mn_now;
735	}	1105	}
736		1106
737	now = ev_now;	1107	mn_now = ev_rt_now;
738	}	1108	}
739	}	1109	}
740		1110
741	int ev_loop_done;	1111	void
		1112	ev_ref (EV_P)
		1113	{
		1114	++activecnt;
		1115	}
742		1116
		1117	void
		1118	ev_unref (EV_P)
		1119	{
		1120	--activecnt;
		1121	}
		1122
		1123	static int loop_done;
		1124
		1125	void
743	void ev_loop (int flags)	1126	ev_loop (EV_P_ int flags)
744	{	1127	{
745	double block;	1128	double block;
746	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1129	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
747		1130
748	do	1131	do
749	{	1132	{
750	/* queue check watchers (and execute them) */	1133	/* queue check watchers (and execute them) */
751	if (expect_false (preparecnt))	1134	if (expect_false (preparecnt))
752	{	1135	{
753	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1136	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
754	call_pending ();	1137	call_pending (EV_A);
755	}	1138	}
756		1139
		1140	/* we might have forked, so reify kernel state if necessary */
		1141	if (expect_false (postfork))
		1142	loop_fork (EV_A);
		1143
757	/* update fd-related kernel structures */	1144	/* update fd-related kernel structures */
758	fd_reify ();	1145	fd_reify (EV_A);
759		1146
760	/* calculate blocking time */	1147	/* calculate blocking time */
761		1148
762	/* we only need this for !monotonic clockor timers, but as we basically	1149	/* we only need this for !monotonic clock or timers, but as we basically
763	always have timers, we just calculate it always */	1150	always have timers, we just calculate it always */
764	#if EV_USE_MONOTONIC	1151	#if EV_USE_MONOTONIC
765	if (expect_true (have_monotonic))	1152	if (expect_true (have_monotonic))
766	time_update_monotonic ();	1153	time_update_monotonic (EV_A);
767	else	1154	else
768	#endif	1155	#endif
769	{	1156	{
770	ev_now = ev_time ();	1157	ev_rt_now = ev_time ();
771	now = ev_now;	1158	mn_now = ev_rt_now;
772	}	1159	}
773		1160
774	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1161	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
775	block = 0.;	1162	block = 0.;
776	else	1163	else
777	{	1164	{
778	block = MAX_BLOCKTIME;	1165	block = MAX_BLOCKTIME;
779		1166
780	if (timercnt)	1167	if (timercnt)
781	{	1168	{
782	ev_tstamp to = timers [0]->at - now + method_fudge;	1169	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
783	if (block > to) block = to;	1170	if (block > to) block = to;
784	}	1171	}
785		1172
786	if (periodiccnt)	1173	if (periodiccnt)
787	{	1174	{
788	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1175	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
789	if (block > to) block = to;	1176	if (block > to) block = to;
790	}	1177	}
791		1178
792	if (block < 0.) block = 0.;	1179	if (block < 0.) block = 0.;
793	}	1180	}
794		1181
795	method_poll (block);	1182	method_poll (EV_A_ block);
796		1183
797	/* update ev_now, do magic */	1184	/* update ev_rt_now, do magic */
798	time_update ();	1185	time_update (EV_A);
799		1186
800	/* queue pending timers and reschedule them */	1187	/* queue pending timers and reschedule them */
801	timers_reify (); /* relative timers called last */	1188	timers_reify (EV_A); /* relative timers called last */
802	periodics_reify (); /* absolute timers called first */	1189	periodics_reify (EV_A); /* absolute timers called first */
803		1190
804	/* queue idle watchers unless io or timers are pending */	1191	/* queue idle watchers unless io or timers are pending */
805	if (!pendingcnt)	1192	if (idlecnt && !any_pending (EV_A))
806	queue_events ((W *)idles, idlecnt, EV_IDLE);	1193	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
807		1194
808	/* queue check watchers, to be executed first */	1195	/* queue check watchers, to be executed first */
809	if (checkcnt)	1196	if (checkcnt)
810	queue_events ((W *)checks, checkcnt, EV_CHECK);	1197	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
811		1198
812	call_pending ();	1199	call_pending (EV_A);
813	}	1200	}
814	while (!ev_loop_done);	1201	while (activecnt && !loop_done);
815		1202
816	if (ev_loop_done != 2)	1203	if (loop_done != 2)
817	ev_loop_done = 0;	1204	loop_done = 0;
		1205	}
		1206
		1207	void
		1208	ev_unloop (EV_P_ int how)
		1209	{
		1210	loop_done = how;
818	}	1211	}
819		1212
820	/*****************************************************************************/	1213	/*****************************************************************************/
821		1214
822	static void	1215	inline void
823	wlist_add (WL *head, WL elem)	1216	wlist_add (WL *head, WL elem)
824	{	1217	{
825	elem->next = *head;	1218	elem->next = *head;
826	*head = elem;	1219	*head = elem;
827	}	1220	}
828		1221
829	static void	1222	inline void
830	wlist_del (WL *head, WL elem)	1223	wlist_del (WL *head, WL elem)
831	{	1224	{
832	while (*head)	1225	while (*head)
833	{	1226	{
834	if (*head == elem)	1227	if (*head == elem)
…		…
839		1232
840	head = &(*head)->next;	1233	head = &(*head)->next;
841	}	1234	}
842	}	1235	}
843		1236
844	static void	1237	inline void
845	ev_clear_pending (W w)	1238	ev_clear_pending (EV_P_ W w)
846	{	1239	{
847	if (w->pending)	1240	if (w->pending)
848	{	1241	{
849	pendings [w->pending - 1].w = 0;	1242	pendings [ABSPRI (w)][w->pending - 1].w = 0;
850	w->pending = 0;	1243	w->pending = 0;
851	}	1244	}
852	}	1245	}
853		1246
854	static void	1247	inline void
855	ev_start (W w, int active)	1248	ev_start (EV_P_ W w, int active)
856	{	1249	{
		1250	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1251	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1252
857	w->active = active;	1253	w->active = active;
		1254	ev_ref (EV_A);
858	}	1255	}
859		1256
860	static void	1257	inline void
861	ev_stop (W w)	1258	ev_stop (EV_P_ W w)
862	{	1259	{
		1260	ev_unref (EV_A);
863	w->active = 0;	1261	w->active = 0;
864	}	1262	}
865		1263
866	/*****************************************************************************/	1264	/*****************************************************************************/
867		1265
868	void	1266	void
869	ev_io_start (struct ev_io *w)	1267	ev_io_start (EV_P_ struct ev_io *w)
870	{	1268	{
871	int fd = w->fd;	1269	int fd = w->fd;
872		1270
873	if (ev_is_active (w))	1271	if (ev_is_active (w))
874	return;	1272	return;
875		1273
876	assert (("ev_io_start called with negative fd", fd >= 0));	1274	assert (("ev_io_start called with negative fd", fd >= 0));
877		1275
878	ev_start ((W)w, 1);	1276	ev_start (EV_A_ (W)w, 1);
879	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1277	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
880	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1278	wlist_add ((WL *)&anfds[fd].head, (WL)w);
881		1279
882	fd_change (fd);	1280	fd_change (EV_A_ fd);
883	}	1281	}
884		1282
885	void	1283	void
886	ev_io_stop (struct ev_io *w)	1284	ev_io_stop (EV_P_ struct ev_io *w)
887	{	1285	{
888	ev_clear_pending ((W)w);	1286	ev_clear_pending (EV_A_ (W)w);
889	if (!ev_is_active (w))	1287	if (!ev_is_active (w))
890	return;	1288	return;
891		1289
892	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1290	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
893	ev_stop ((W)w);	1291	ev_stop (EV_A_ (W)w);
894		1292
895	fd_change (w->fd);	1293	fd_change (EV_A_ w->fd);
896	}	1294	}
897		1295
898	void	1296	void
899	ev_timer_start (struct ev_timer *w)	1297	ev_timer_start (EV_P_ struct ev_timer *w)
900	{	1298	{
901	if (ev_is_active (w))	1299	if (ev_is_active (w))
902	return;	1300	return;
903		1301
904	w->at += now;	1302	((WT)w)->at += mn_now;
905		1303
906	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1304	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
907		1305
908	ev_start ((W)w, ++timercnt);	1306	ev_start (EV_A_ (W)w, ++timercnt);
909	array_needsize (timers, timermax, timercnt, );	1307	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
910	timers [timercnt - 1] = w;	1308	timers [timercnt - 1] = w;
911	upheap ((WT *)timers, timercnt - 1);	1309	upheap ((WT *)timers, timercnt - 1);
912	}
913		1310
		1311	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1312	}
		1313
914	void	1314	void
915	ev_timer_stop (struct ev_timer *w)	1315	ev_timer_stop (EV_P_ struct ev_timer *w)
916	{	1316	{
917	ev_clear_pending ((W)w);	1317	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1318	if (!ev_is_active (w))
919	return;	1319	return;
920		1320
		1321	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1322
921	if (w->active < timercnt--)	1323	if (((W)w)->active < timercnt--)
922	{	1324	{
923	timers [w->active - 1] = timers [timercnt];	1325	timers [((W)w)->active - 1] = timers [timercnt];
924	downheap ((WT *)timers, timercnt, w->active - 1);	1326	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
925	}	1327	}
926		1328
927	w->at = w->repeat;	1329	((WT)w)->at = w->repeat;
928		1330
929	ev_stop ((W)w);	1331	ev_stop (EV_A_ (W)w);
930	}	1332	}
931		1333
932	void	1334	void
933	ev_timer_again (struct ev_timer *w)	1335	ev_timer_again (EV_P_ struct ev_timer *w)
934	{	1336	{
935	if (ev_is_active (w))	1337	if (ev_is_active (w))
936	{	1338	{
937	if (w->repeat)	1339	if (w->repeat)
938	{
939	w->at = now + w->repeat;
940	downheap ((WT *)timers, timercnt, w->active - 1);	1340	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
941	}
942	else	1341	else
943	ev_timer_stop (w);	1342	ev_timer_stop (EV_A_ w);
944	}	1343	}
945	else if (w->repeat)	1344	else if (w->repeat)
946	ev_timer_start (w);	1345	ev_timer_start (EV_A_ w);
947	}	1346	}
948		1347
949	void	1348	void
950	ev_periodic_start (struct ev_periodic *w)	1349	ev_periodic_start (EV_P_ struct ev_periodic *w)
951	{	1350	{
952	if (ev_is_active (w))	1351	if (ev_is_active (w))
953	return;	1352	return;
954		1353
		1354	if (w->reschedule_cb)
		1355	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1356	else if (w->interval)
		1357	{
955	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1358	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
956
957	/* this formula differs from the one in periodic_reify because we do not always round up */	1359	/* this formula differs from the one in periodic_reify because we do not always round up */
958	if (w->interval)
959	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1360	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1361	}
960		1362
961	ev_start ((W)w, ++periodiccnt);	1363	ev_start (EV_A_ (W)w, ++periodiccnt);
962	array_needsize (periodics, periodicmax, periodiccnt, );	1364	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
963	periodics [periodiccnt - 1] = w;	1365	periodics [periodiccnt - 1] = w;
964	upheap ((WT *)periodics, periodiccnt - 1);	1366	upheap ((WT *)periodics, periodiccnt - 1);
965	}
966		1367
		1368	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1369	}
		1370
967	void	1371	void
968	ev_periodic_stop (struct ev_periodic *w)	1372	ev_periodic_stop (EV_P_ struct ev_periodic *w)
969	{	1373	{
970	ev_clear_pending ((W)w);	1374	ev_clear_pending (EV_A_ (W)w);
971	if (!ev_is_active (w))	1375	if (!ev_is_active (w))
972	return;	1376	return;
973		1377
		1378	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1379
974	if (w->active < periodiccnt--)	1380	if (((W)w)->active < periodiccnt--)
975	{	1381	{
976	periodics [w->active - 1] = periodics [periodiccnt];	1382	periodics [((W)w)->active - 1] = periodics [periodiccnt];
977	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1383	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
978	}	1384	}
979		1385
980	ev_stop ((W)w);	1386	ev_stop (EV_A_ (W)w);
981	}	1387	}
982		1388
983	void	1389	void
		1390	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1391	{
		1392	/* TODO: use adjustheap and recalculation */
		1393	ev_periodic_stop (EV_A_ w);
		1394	ev_periodic_start (EV_A_ w);
		1395	}
		1396
		1397	void
984	ev_signal_start (struct ev_signal *w)	1398	ev_idle_start (EV_P_ struct ev_idle *w)
985	{	1399	{
986	if (ev_is_active (w))	1400	if (ev_is_active (w))
987	return;	1401	return;
988		1402
		1403	ev_start (EV_A_ (W)w, ++idlecnt);
		1404	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1405	idles [idlecnt - 1] = w;
		1406	}
		1407
		1408	void
		1409	ev_idle_stop (EV_P_ struct ev_idle *w)
		1410	{
		1411	ev_clear_pending (EV_A_ (W)w);
		1412	if (ev_is_active (w))
		1413	return;
		1414
		1415	idles [((W)w)->active - 1] = idles [--idlecnt];
		1416	ev_stop (EV_A_ (W)w);
		1417	}
		1418
		1419	void
		1420	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1421	{
		1422	if (ev_is_active (w))
		1423	return;
		1424
		1425	ev_start (EV_A_ (W)w, ++preparecnt);
		1426	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1427	prepares [preparecnt - 1] = w;
		1428	}
		1429
		1430	void
		1431	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1432	{
		1433	ev_clear_pending (EV_A_ (W)w);
		1434	if (ev_is_active (w))
		1435	return;
		1436
		1437	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1438	ev_stop (EV_A_ (W)w);
		1439	}
		1440
		1441	void
		1442	ev_check_start (EV_P_ struct ev_check *w)
		1443	{
		1444	if (ev_is_active (w))
		1445	return;
		1446
		1447	ev_start (EV_A_ (W)w, ++checkcnt);
		1448	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1449	checks [checkcnt - 1] = w;
		1450	}
		1451
		1452	void
		1453	ev_check_stop (EV_P_ struct ev_check *w)
		1454	{
		1455	ev_clear_pending (EV_A_ (W)w);
		1456	if (ev_is_active (w))
		1457	return;
		1458
		1459	checks [((W)w)->active - 1] = checks [--checkcnt];
		1460	ev_stop (EV_A_ (W)w);
		1461	}
		1462
		1463	#ifndef SA_RESTART
		1464	# define SA_RESTART 0
		1465	#endif
		1466
		1467	void
		1468	ev_signal_start (EV_P_ struct ev_signal *w)
		1469	{
		1470	#if EV_MULTIPLICITY
		1471	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1472	#endif
		1473	if (ev_is_active (w))
		1474	return;
		1475
989	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1476	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
990		1477
991	ev_start ((W)w, 1);	1478	ev_start (EV_A_ (W)w, 1);
992	array_needsize (signals, signalmax, w->signum, signals_init);	1479	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
993	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1480	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
994		1481
995	if (!w->next)	1482	if (!((WL)w)->next)
996	{	1483	{
		1484	#if WIN32
		1485	signal (w->signum, sighandler);
		1486	#else
997	struct sigaction sa;	1487	struct sigaction sa;
998	sa.sa_handler = sighandler;	1488	sa.sa_handler = sighandler;
999	sigfillset (&sa.sa_mask);	1489	sigfillset (&sa.sa_mask);
1000	sa.sa_flags = 0;	1490	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1001	sigaction (w->signum, &sa, 0);	1491	sigaction (w->signum, &sa, 0);
		1492	#endif
1002	}	1493	}
1003	}	1494	}
1004		1495
1005	void	1496	void
1006	ev_signal_stop (struct ev_signal *w)	1497	ev_signal_stop (EV_P_ struct ev_signal *w)
1007	{	1498	{
1008	ev_clear_pending ((W)w);	1499	ev_clear_pending (EV_A_ (W)w);
1009	if (!ev_is_active (w))	1500	if (!ev_is_active (w))
1010	return;	1501	return;
1011		1502
1012	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1503	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1013	ev_stop ((W)w);	1504	ev_stop (EV_A_ (W)w);
1014		1505
1015	if (!signals [w->signum - 1].head)	1506	if (!signals [w->signum - 1].head)
1016	signal (w->signum, SIG_DFL);	1507	signal (w->signum, SIG_DFL);
1017	}	1508	}
1018		1509
1019	void	1510	void
1020	ev_idle_start (struct ev_idle *w)	1511	ev_child_start (EV_P_ struct ev_child *w)
1021	{	1512	{
		1513	#if EV_MULTIPLICITY
		1514	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1515	#endif
1022	if (ev_is_active (w))	1516	if (ev_is_active (w))
1023	return;	1517	return;
1024		1518
1025	ev_start ((W)w, ++idlecnt);	1519	ev_start (EV_A_ (W)w, 1);
1026	array_needsize (idles, idlemax, idlecnt, );	1520	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1027	idles [idlecnt - 1] = w;
1028	}	1521	}
1029		1522
1030	void	1523	void
1031	ev_idle_stop (struct ev_idle *w)	1524	ev_child_stop (EV_P_ struct ev_child *w)
1032	{	1525	{
1033	ev_clear_pending ((W)w);	1526	ev_clear_pending (EV_A_ (W)w);
1034	if (ev_is_active (w))	1527	if (ev_is_active (w))
1035	return;	1528	return;
1036		1529
1037	idles [w->active - 1] = idles [--idlecnt];
1038	ev_stop ((W)w);
1039	}
1040
1041	void
1042	ev_prepare_start (struct ev_prepare *w)
1043	{
1044	if (ev_is_active (w))
1045	return;
1046
1047	ev_start ((W)w, ++preparecnt);
1048	array_needsize (prepares, preparemax, preparecnt, );
1049	prepares [preparecnt - 1] = w;
1050	}
1051
1052	void
1053	ev_prepare_stop (struct ev_prepare *w)
1054	{
1055	ev_clear_pending ((W)w);
1056	if (ev_is_active (w))
1057	return;
1058
1059	prepares [w->active - 1] = prepares [--preparecnt];
1060	ev_stop ((W)w);
1061	}
1062
1063	void
1064	ev_check_start (struct ev_check *w)
1065	{
1066	if (ev_is_active (w))
1067	return;
1068
1069	ev_start ((W)w, ++checkcnt);
1070	array_needsize (checks, checkmax, checkcnt, );
1071	checks [checkcnt - 1] = w;
1072	}
1073
1074	void
1075	ev_check_stop (struct ev_check *w)
1076	{
1077	ev_clear_pending ((W)w);
1078	if (ev_is_active (w))
1079	return;
1080
1081	checks [w->active - 1] = checks [--checkcnt];
1082	ev_stop ((W)w);
1083	}
1084
1085	void
1086	ev_child_start (struct ev_child *w)
1087	{
1088	if (ev_is_active (w))
1089	return;
1090
1091	ev_start ((W)w, 1);
1092	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1093	}
1094
1095	void
1096	ev_child_stop (struct ev_child *w)
1097	{
1098	ev_clear_pending ((W)w);
1099	if (ev_is_active (w))
1100	return;
1101
1102	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1530	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1103	ev_stop ((W)w);	1531	ev_stop (EV_A_ (W)w);
1104	}	1532	}
1105		1533
1106	/*****************************************************************************/	1534	/*****************************************************************************/
1107		1535
1108	struct ev_once	1536	struct ev_once
…		…
1112	void (cb)(int revents, void arg);	1540	void (cb)(int revents, void arg);
1113	void *arg;	1541	void *arg;
1114	};	1542	};
1115		1543
1116	static void	1544	static void
1117	once_cb (struct ev_once *once, int revents)	1545	once_cb (EV_P_ struct ev_once *once, int revents)
1118	{	1546	{
1119	void (cb)(int revents, void arg) = once->cb;	1547	void (cb)(int revents, void arg) = once->cb;
1120	void *arg = once->arg;	1548	void *arg = once->arg;
1121		1549
1122	ev_io_stop (&once->io);	1550	ev_io_stop (EV_A_ &once->io);
1123	ev_timer_stop (&once->to);	1551	ev_timer_stop (EV_A_ &once->to);
1124	free (once);	1552	ev_free (once);
1125		1553
1126	cb (revents, arg);	1554	cb (revents, arg);
1127	}	1555	}
1128		1556
1129	static void	1557	static void
1130	once_cb_io (struct ev_io *w, int revents)	1558	once_cb_io (EV_P_ struct ev_io *w, int revents)
1131	{	1559	{
1132	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1560	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1133	}	1561	}
1134		1562
1135	static void	1563	static void
1136	once_cb_to (struct ev_timer *w, int revents)	1564	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1137	{	1565	{
1138	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1566	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1139	}	1567	}
1140		1568
1141	void	1569	void
1142	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1570	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1143	{	1571	{
1144	struct ev_once *once = malloc (sizeof (struct ev_once));	1572	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1145		1573
1146	if (!once)	1574	if (!once)
1147	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1575	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1148	else	1576	else
1149	{	1577	{
1150	once->cb = cb;	1578	once->cb = cb;
1151	once->arg = arg;	1579	once->arg = arg;
1152		1580
1153	ev_watcher_init (&once->io, once_cb_io);	1581	ev_init (&once->io, once_cb_io);
1154	if (fd >= 0)	1582	if (fd >= 0)
1155	{	1583	{
1156	ev_io_set (&once->io, fd, events);	1584	ev_io_set (&once->io, fd, events);
1157	ev_io_start (&once->io);	1585	ev_io_start (EV_A_ &once->io);
1158	}	1586	}
1159		1587
1160	ev_watcher_init (&once->to, once_cb_to);	1588	ev_init (&once->to, once_cb_to);
1161	if (timeout >= 0.)	1589	if (timeout >= 0.)
1162	{	1590	{
1163	ev_timer_set (&once->to, timeout, 0.);	1591	ev_timer_set (&once->to, timeout, 0.);
1164	ev_timer_start (&once->to);	1592	ev_timer_start (EV_A_ &once->to);
1165	}	1593	}
1166	}	1594	}
1167	}	1595	}
1168		1596
1169	/*****************************************************************************/
1170
1171	#if 0
1172
1173	struct ev_io wio;
1174
1175	static void
1176	sin_cb (struct ev_io *w, int revents)
1177	{
1178	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1179	}
1180
1181	static void
1182	ocb (struct ev_timer *w, int revents)
1183	{
1184	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1185	ev_timer_stop (w);
1186	ev_timer_start (w);
1187	}
1188
1189	static void
1190	scb (struct ev_signal *w, int revents)
1191	{
1192	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1193	ev_io_stop (&wio);
1194	ev_io_start (&wio);
1195	}
1196
1197	static void
1198	gcb (struct ev_signal *w, int revents)
1199	{
1200	fprintf (stderr, "generic %x\n", revents);
1201
1202	}
1203
1204	int main (void)
1205	{
1206	ev_init (0);
1207
1208	ev_io_init (&wio, sin_cb, 0, EV_READ);
1209	ev_io_start (&wio);
1210
1211	struct ev_timer t[10000];
1212
1213	#if 0
1214	int i;
1215	for (i = 0; i < 10000; ++i)
1216	{
1217	struct ev_timer *w = t + i;
1218	ev_watcher_init (w, ocb, i);
1219	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1220	ev_timer_start (w);
1221	if (drand48 () < 0.5)
1222	ev_timer_stop (w);
1223	}
1224	#endif
1225
1226	struct ev_timer t1;
1227	ev_timer_init (&t1, ocb, 5, 10);
1228	ev_timer_start (&t1);
1229
1230	struct ev_signal sig;
1231	ev_signal_init (&sig, scb, SIGQUIT);
1232	ev_signal_start (&sig);
1233
1234	struct ev_check cw;
1235	ev_check_init (&cw, gcb);
1236	ev_check_start (&cw);
1237
1238	struct ev_idle iw;
1239	ev_idle_init (&iw, gcb);
1240	ev_idle_start (&iw);
1241
1242	ev_loop (0);
1243
1244	return 0;
1245	}
1246
1247	#endif
1248
1249
1250
1251

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Comparing libev/ev.c (file contents): Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs. Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC

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Comparing libev/ev.c (file contents):
Revision 1.41 by root, Fri Nov 2 16:54:34 2007 UTC vs.
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC