[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 1.86 by root, Sat Nov 10 03:19:21 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	ev_tstamp ev_rt_now;
		227	#define VAR(name,decl) decl;
		228	#include "ev_vars.h"
		229	#undef VAR
		230	};
		231	#include "ev_wrap.h"
		232
		233	struct ev_loop default_loop_struct;
		234	static struct ev_loop *default_loop;
		235
		236	#else
		237
		238	ev_tstamp ev_rt_now;
		239	#define VAR(name,decl) static decl;
		240	#include "ev_vars.h"
		241	#undef VAR
		242
		243	static int default_loop;
		244
		245	#endif
		246
		247	/*****************************************************************************/
		248
		249	inline ev_tstamp
122	ev_time (void)	250	ev_time (void)
123	{	251	{
124	#if EV_USE_REALTIME	252	#if EV_USE_REALTIME
125	struct timespec ts;	253	struct timespec ts;
126	clock_gettime (CLOCK_REALTIME, &ts);	254	clock_gettime (CLOCK_REALTIME, &ts);
…		…
130	gettimeofday (&tv, 0);	258	gettimeofday (&tv, 0);
131	return tv.tv_sec + tv.tv_usec * 1e-6;	259	return tv.tv_sec + tv.tv_usec * 1e-6;
132	#endif	260	#endif
133	}	261	}
134		262
135	static ev_tstamp	263	inline ev_tstamp
136	get_clock (void)	264	get_clock (void)
137	{	265	{
138	#if EV_USE_MONOTONIC	266	#if EV_USE_MONOTONIC
139	if (expect_true (have_monotonic))	267	if (expect_true (have_monotonic))
140	{	268	{
…		…
145	#endif	273	#endif
146		274
147	return ev_time ();	275	return ev_time ();
148	}	276	}
149		277
		278	#if EV_MULTIPLICITY
		279	ev_tstamp
		280	ev_now (EV_P)
		281	{
		282	return ev_rt_now;
		283	}
		284	#endif
		285
150	#define array_roundsize(base,n) ((n) \| 4 & ~3)	286	#define array_roundsize(type,n) ((n) \| 4 & ~3)
151		287
152	#define array_needsize(base,cur,cnt,init) \	288	#define array_needsize(type,base,cur,cnt,init) \
153	if (expect_false ((cnt) > cur)) \	289	if (expect_false ((cnt) > cur)) \
154	{ \	290	{ \
155	int newcnt = cur; \	291	int newcnt = cur; \
156	do \	292	do \
157	{ \	293	{ \
158	newcnt = array_roundsize (base, newcnt << 1); \	294	newcnt = array_roundsize (type, newcnt << 1); \
159	} \	295	} \
160	while ((cnt) > newcnt); \	296	while ((cnt) > newcnt); \
161	\	297	\
162	base = realloc (base, sizeof (base) (newcnt)); \	298	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
163	init (base + cur, newcnt - cur); \	299	init (base + cur, newcnt - cur); \
164	cur = newcnt; \	300	cur = newcnt; \
165	}	301	}
		302
		303	#define array_slim(type,stem) \
		304	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		305	{ \
		306	stem ## max = array_roundsize (stem ## cnt >> 1); \
		307	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		308	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		309	}
		310
		311	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
		312	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
		313	#define array_free_microshit(stem) \
		314	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
		315
		316	#define array_free(stem, idx) \
		317	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
166		318
167	/*****************************************************************************/	319	/*****************************************************************************/
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		320
179	static void	321	static void
180	anfds_init (ANFD *base, int count)	322	anfds_init (ANFD *base, int count)
181	{	323	{
182	while (count--)	324	while (count--)
…		…
187		329
188	++base;	330	++base;
189	}	331	}
190	}	332	}
191		333
192	typedef struct	334	void
		335	ev_feed_event (EV_P_ void *w, int revents)
193	{	336	{
194	W w;	337	W w_ = (W)w;
195	int events;
196	} ANPENDING;
197		338
198	static ANPENDING *pendings;
199	static int pendingmax, pendingcnt;
200
201	static void
202	event (W w, int events)
203	{
204	if (w->pending)	339	if (w_->pending)
205	{	340	{
206	pendings [w->pending - 1].events \|= events;	341	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
207	return;	342	return;
208	}	343	}
209		344
210	w->pending = ++pendingcnt;	345	w_->pending = ++pendingcnt [ABSPRI (w_)];
211	array_needsize (pendings, pendingmax, pendingcnt, );	346	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
212	pendings [pendingcnt - 1].w = w;	347	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
213	pendings [pendingcnt - 1].events = events;	348	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
214	}	349	}
215		350
216	static void	351	static void
217	queue_events (W *events, int eventcnt, int type)	352	queue_events (EV_P_ W *events, int eventcnt, int type)
218	{	353	{
219	int i;	354	int i;
220		355
221	for (i = 0; i < eventcnt; ++i)	356	for (i = 0; i < eventcnt; ++i)
222	event (events [i], type);	357	ev_feed_event (EV_A_ events [i], type);
223	}	358	}
224		359
225	static void	360	inline void
226	fd_event (int fd, int events)	361	fd_event (EV_P_ int fd, int revents)
227	{	362	{
228	ANFD *anfd = anfds + fd;	363	ANFD *anfd = anfds + fd;
229	struct ev_io *w;	364	struct ev_io *w;
230		365
231	for (w = anfd->head; w; w = w->next)	366	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
232	{	367	{
233	int ev = w->events & events;	368	int ev = w->events & revents;
234		369
235	if (ev)	370	if (ev)
236	event ((W)w, ev);	371	ev_feed_event (EV_A_ (W)w, ev);
237	}	372	}
		373	}
		374
		375	void
		376	ev_feed_fd_event (EV_P_ int fd, int revents)
		377	{
		378	fd_event (EV_A_ fd, revents);
238	}	379	}
239		380
240	/*****************************************************************************/	381	/*****************************************************************************/
241		382
242	static int *fdchanges;
243	static int fdchangemax, fdchangecnt;
244
245	static void	383	static void
246	fd_reify (void)	384	fd_reify (EV_P)
247	{	385	{
248	int i;	386	int i;
249		387
250	for (i = 0; i < fdchangecnt; ++i)	388	for (i = 0; i < fdchangecnt; ++i)
251	{	389	{
…		…
253	ANFD *anfd = anfds + fd;	391	ANFD *anfd = anfds + fd;
254	struct ev_io *w;	392	struct ev_io *w;
255		393
256	int events = 0;	394	int events = 0;
257		395
258	for (w = anfd->head; w; w = w->next)	396	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
259	events \|= w->events;	397	events \|= w->events;
260		398
261	anfd->reify = 0;	399	anfd->reify = 0;
262		400
263	if (anfd->events != events)
264	{
265	method_modify (fd, anfd->events, events);	401	method_modify (EV_A_ fd, anfd->events, events);
266	anfd->events = events;	402	anfd->events = events;
267	}
268	}	403	}
269		404
270	fdchangecnt = 0;	405	fdchangecnt = 0;
271	}	406	}
272		407
273	static void	408	static void
274	fd_change (int fd)	409	fd_change (EV_P_ int fd)
275	{	410	{
276	if (anfds [fd].reify \|\| fdchangecnt < 0)	411	if (anfds [fd].reify)
277	return;	412	return;
278		413
279	anfds [fd].reify = 1;	414	anfds [fd].reify = 1;
280		415
281	++fdchangecnt;	416	++fdchangecnt;
282	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	417	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
283	fdchanges [fdchangecnt - 1] = fd;	418	fdchanges [fdchangecnt - 1] = fd;
284	}	419	}
285		420
286	static void	421	static void
287	fd_kill (int fd)	422	fd_kill (EV_P_ int fd)
288	{	423	{
289	struct ev_io *w;	424	struct ev_io *w;
290		425
291	printf ("killing fd %d\n", fd);//D
292	while ((w = anfds [fd].head))	426	while ((w = (struct ev_io *)anfds [fd].head))
293	{	427	{
294	ev_io_stop (w);	428	ev_io_stop (EV_A_ w);
295	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	429	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
296	}	430	}
		431	}
		432
		433	static int
		434	fd_valid (int fd)
		435	{
		436	#ifdef WIN32
		437	return !!win32_get_osfhandle (fd);
		438	#else
		439	return fcntl (fd, F_GETFD) != -1;
		440	#endif
297	}	441	}
298		442
299	/* called on EBADF to verify fds */	443	/* called on EBADF to verify fds */
300	static void	444	static void
301	fd_ebadf (void)	445	fd_ebadf (EV_P)
302	{	446	{
303	int fd;	447	int fd;
304		448
305	for (fd = 0; fd < anfdmax; ++fd)	449	for (fd = 0; fd < anfdmax; ++fd)
306	if (anfds [fd].events)	450	if (anfds [fd].events)
307	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	451	if (!fd_valid (fd) == -1 && errno == EBADF)
308	fd_kill (fd);	452	fd_kill (EV_A_ fd);
309	}	453	}
310		454
311	/* called on ENOMEM in select/poll to kill some fds and retry */	455	/* called on ENOMEM in select/poll to kill some fds and retry */
312	static void	456	static void
313	fd_enomem (void)	457	fd_enomem (EV_P)
314	{	458	{
315	int fd = anfdmax;	459	int fd;
316		460
317	while (fd--)	461	for (fd = anfdmax; fd--; )
318	if (anfds [fd].events)	462	if (anfds [fd].events)
319	{	463	{
320	close (fd);
321	fd_kill (fd);	464	fd_kill (EV_A_ fd);
322	return;	465	return;
323	}	466	}
324	}	467	}
325		468
		469	/* usually called after fork if method needs to re-arm all fds from scratch */
		470	static void
		471	fd_rearm_all (EV_P)
		472	{
		473	int fd;
		474
		475	/* this should be highly optimised to not do anything but set a flag */
		476	for (fd = 0; fd < anfdmax; ++fd)
		477	if (anfds [fd].events)
		478	{
		479	anfds [fd].events = 0;
		480	fd_change (EV_A_ fd);
		481	}
		482	}
		483
326	/*****************************************************************************/	484	/*****************************************************************************/
327		485
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	486	static void
335	upheap (WT *timers, int k)	487	upheap (WT *heap, int k)
336	{	488	{
337	WT w = timers [k];	489	WT w = heap [k];
338		490
339	while (k && timers [k >> 1]->at > w->at)	491	while (k && heap [k >> 1]->at > w->at)
340	{	492	{
341	timers [k] = timers [k >> 1];	493	heap [k] = heap [k >> 1];
342	timers [k]->active = k + 1;	494	((W)heap [k])->active = k + 1;
343	k >>= 1;	495	k >>= 1;
344	}	496	}
345		497
346	timers [k] = w;	498	heap [k] = w;
347	timers [k]->active = k + 1;	499	((W)heap [k])->active = k + 1;
348		500
349	}	501	}
350		502
351	static void	503	static void
352	downheap (WT *timers, int N, int k)	504	downheap (WT *heap, int N, int k)
353	{	505	{
354	WT w = timers [k];	506	WT w = heap [k];
355		507
356	while (k < (N >> 1))	508	while (k < (N >> 1))
357	{	509	{
358	int j = k << 1;	510	int j = k << 1;
359		511
360	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	512	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
361	++j;	513	++j;
362		514
363	if (w->at <= timers [j]->at)	515	if (w->at <= heap [j]->at)
364	break;	516	break;
365		517
366	timers [k] = timers [j];	518	heap [k] = heap [j];
367	timers [k]->active = k + 1;	519	((W)heap [k])->active = k + 1;
368	k = j;	520	k = j;
369	}	521	}
370		522
371	timers [k] = w;	523	heap [k] = w;
372	timers [k]->active = k + 1;	524	((W)heap [k])->active = k + 1;
		525	}
		526
		527	inline void
		528	adjustheap (WT *heap, int N, int k, ev_tstamp at)
		529	{
		530	ev_tstamp old_at = heap [k]->at;
		531	heap [k]->at = at;
		532
		533	if (old_at < at)
		534	downheap (heap, N, k);
		535	else
		536	upheap (heap, k);
373	}	537	}
374		538
375	/*****************************************************************************/	539	/*****************************************************************************/
376		540
377	typedef struct	541	typedef struct
378	{	542	{
379	struct ev_signal *head;	543	WL head;
380	sig_atomic_t volatile gotsig;	544	sig_atomic_t volatile gotsig;
381	} ANSIG;	545	} ANSIG;
382		546
383	static ANSIG *signals;	547	static ANSIG *signals;
384	static int signalmax;	548	static int signalmax;
…		…
400	}	564	}
401		565
402	static void	566	static void
403	sighandler (int signum)	567	sighandler (int signum)
404	{	568	{
		569	#if WIN32
		570	signal (signum, sighandler);
		571	#endif
		572
405	signals [signum - 1].gotsig = 1;	573	signals [signum - 1].gotsig = 1;
406		574
407	if (!gotsig)	575	if (!gotsig)
408	{	576	{
		577	int old_errno = errno;
409	gotsig = 1;	578	gotsig = 1;
		579	#ifdef WIN32
		580	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
		581	#else
410	write (sigpipe [1], &signum, 1);	582	write (sigpipe [1], &signum, 1);
		583	#endif
		584	errno = old_errno;
411	}	585	}
412	}	586	}
413		587
		588	void
		589	ev_feed_signal_event (EV_P_ int signum)
		590	{
		591	WL w;
		592
		593	#if EV_MULTIPLICITY
		594	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		595	#endif
		596
		597	--signum;
		598
		599	if (signum < 0 \|\| signum >= signalmax)
		600	return;
		601
		602	signals [signum].gotsig = 0;
		603
		604	for (w = signals [signum].head; w; w = w->next)
		605	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		606	}
		607
414	static void	608	static void
415	sigcb (struct ev_io *iow, int revents)	609	sigcb (EV_P_ struct ev_io *iow, int revents)
416	{	610	{
417	struct ev_signal *w;
418	int signum;	611	int signum;
419		612
		613	#ifdef WIN32
		614	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
		615	#else
420	read (sigpipe [0], &revents, 1);	616	read (sigpipe [0], &revents, 1);
		617	#endif
421	gotsig = 0;	618	gotsig = 0;
422		619
423	for (signum = signalmax; signum--; )	620	for (signum = signalmax; signum--; )
424	if (signals [signum].gotsig)	621	if (signals [signum].gotsig)
425	{	622	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	}	623	}
432		624
433	static void	625	static void
434	siginit (void)	626	siginit (EV_P)
435	{	627	{
		628	#ifndef WIN32
436	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	629	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);
437	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);	630	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
438		631
439	/* rather than sort out wether we really need nb, set it */	632	/* rather than sort out wether we really need nb, set it */
440	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	633	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
441	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);	634	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
		635	#endif
442		636
443	ev_io_set (&sigev, sigpipe [0], EV_READ);	637	ev_io_set (&sigev, sigpipe [0], EV_READ);
444	ev_io_start (&sigev);	638	ev_io_start (EV_A_ &sigev);
		639	ev_unref (EV_A); /* child watcher should not keep loop alive */
445	}	640	}
446		641
447	/*****************************************************************************/	642	/*****************************************************************************/
448		643
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];	644	static struct ev_child *childs [PID_HASHSIZE];
		645
		646	#ifndef WIN32
		647
461	static struct ev_signal childev;	648	static struct ev_signal childev;
462		649
463	#ifndef WCONTINUED	650	#ifndef WCONTINUED
464	# define WCONTINUED 0	651	# define WCONTINUED 0
465	#endif	652	#endif
466		653
467	static void	654	static void
468	childcb (struct ev_signal *sw, int revents)	655	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
469	{	656	{
470	struct ev_child *w;	657	struct ev_child *w;
		658
		659	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
		660	if (w->pid == pid \|\| !w->pid)
		661	{
		662	ev_priority (w) = ev_priority (sw); /* need to do it now */
		663	w->rpid = pid;
		664	w->rstatus = status;
		665	ev_feed_event (EV_A_ (W)w, EV_CHILD);
		666	}
		667	}
		668
		669	static void
		670	childcb (EV_P_ struct ev_signal *sw, int revents)
		671	{
471	int pid, status;	672	int pid, status;
472		673
473	while ((pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)) != -1)	674	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
474	for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next)	675	{
475	if (w->pid == pid \|\| !w->pid)	676	/* make sure we are called again until all childs have been reaped */
476	{	677	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
477	w->status = status;	678
478	event ((W)w, EV_CHILD);	679	child_reap (EV_A_ sw, pid, pid, status);
479	}	680	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
		681	}
480	}	682	}
		683
		684	#endif
481		685
482	/*****************************************************************************/	686	/*****************************************************************************/
483		687
		688	#if EV_USE_KQUEUE
		689	# include "ev_kqueue.c"
		690	#endif
484	#if EV_USE_EPOLL	691	#if EV_USE_EPOLL
485	# include "ev_epoll.c"	692	# include "ev_epoll.c"
486	#endif	693	#endif
487	#if EV_USE_POLL	694	#if EV_USE_POLL
488	# include "ev_poll.c"	695	# include "ev_poll.c"
…		…
501	ev_version_minor (void)	708	ev_version_minor (void)
502	{	709	{
503	return EV_VERSION_MINOR;	710	return EV_VERSION_MINOR;
504	}	711	}
505		712
506	/* return true if we are running with elevated privileges and ignore env variables */	713	/* return true if we are running with elevated privileges and should ignore env variables */
507	static int	714	static int
508	enable_secure ()	715	enable_secure (void)
509	{	716	{
		717	#ifdef WIN32
		718	return 0;
		719	#else
510	return getuid () != geteuid ()	720	return getuid () != geteuid ()
511	\|\| getgid () != getegid ();	721	\|\| getgid () != getegid ();
		722	#endif
512	}	723	}
513		724
514	int ev_init (int methods)	725	int
		726	ev_method (EV_P)
515	{	727	{
		728	return method;
		729	}
		730
		731	static void
		732	loop_init (EV_P_ int methods)
		733	{
516	if (!ev_method)	734	if (!method)
517	{	735	{
518	#if EV_USE_MONOTONIC	736	#if EV_USE_MONOTONIC
519	{	737	{
520	struct timespec ts;	738	struct timespec ts;
521	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	739	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
522	have_monotonic = 1;	740	have_monotonic = 1;
523	}	741	}
524	#endif	742	#endif
525		743
526	ev_now = ev_time ();	744	ev_rt_now = ev_time ();
527	now = get_clock ();	745	mn_now = get_clock ();
528	now_floor = now;	746	now_floor = mn_now;
529	diff = ev_now - now;	747	rtmn_diff = ev_rt_now - mn_now;
530
531	if (pipe (sigpipe))
532	return 0;
533		748
534	if (methods == EVMETHOD_AUTO)	749	if (methods == EVMETHOD_AUTO)
535	if (!enable_secure () && getenv ("LIBEV_METHODS"))	750	if (!enable_secure () && getenv ("LIBEV_METHODS"))
536	methods = atoi (getenv ("LIBEV_METHODS"));	751	methods = atoi (getenv ("LIBEV_METHODS"));
537	else	752	else
538	methods = EVMETHOD_ANY;	753	methods = EVMETHOD_ANY;
539		754
540	ev_method = 0;	755	method = 0;
		756	#if EV_USE_WIN32
		757	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
		758	#endif
		759	#if EV_USE_KQUEUE
		760	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
		761	#endif
541	#if EV_USE_EPOLL	762	#if EV_USE_EPOLL
542	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	763	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
543	#endif	764	#endif
544	#if EV_USE_POLL	765	#if EV_USE_POLL
545	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	766	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
546	#endif	767	#endif
547	#if EV_USE_SELECT	768	#if EV_USE_SELECT
548	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	769	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
549	#endif	770	#endif
550		771
		772	ev_init (&sigev, sigcb);
		773	ev_set_priority (&sigev, EV_MAXPRI);
		774	}
		775	}
		776
		777	void
		778	loop_destroy (EV_P)
		779	{
		780	int i;
		781
		782	#if EV_USE_WIN32
		783	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
		784	#endif
		785	#if EV_USE_KQUEUE
		786	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		787	#endif
		788	#if EV_USE_EPOLL
		789	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		790	#endif
		791	#if EV_USE_POLL
		792	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		793	#endif
		794	#if EV_USE_SELECT
		795	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		796	#endif
		797
		798	for (i = NUMPRI; i--; )
		799	array_free (pending, [i]);
		800
		801	/* have to use the microsoft-never-gets-it-right macro */
		802	array_free_microshit (fdchange);
		803	array_free_microshit (timer);
		804	array_free_microshit (periodic);
		805	array_free_microshit (idle);
		806	array_free_microshit (prepare);
		807	array_free_microshit (check);
		808
		809	method = 0;
		810	}
		811
		812	static void
		813	loop_fork (EV_P)
		814	{
		815	#if EV_USE_EPOLL
		816	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		817	#endif
		818	#if EV_USE_KQUEUE
		819	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		820	#endif
		821
		822	if (ev_is_active (&sigev))
		823	{
		824	/* default loop */
		825
		826	ev_ref (EV_A);
		827	ev_io_stop (EV_A_ &sigev);
		828	close (sigpipe [0]);
		829	close (sigpipe [1]);
		830
		831	while (pipe (sigpipe))
		832	syserr ("(libev) error creating pipe");
		833
		834	siginit (EV_A);
		835	}
		836
		837	postfork = 0;
		838	}
		839
		840	#if EV_MULTIPLICITY
		841	struct ev_loop *
		842	ev_loop_new (int methods)
		843	{
		844	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		845
		846	memset (loop, 0, sizeof (struct ev_loop));
		847
		848	loop_init (EV_A_ methods);
		849
		850	if (ev_method (EV_A))
		851	return loop;
		852
		853	return 0;
		854	}
		855
		856	void
		857	ev_loop_destroy (EV_P)
		858	{
		859	loop_destroy (EV_A);
		860	ev_free (loop);
		861	}
		862
		863	void
		864	ev_loop_fork (EV_P)
		865	{
		866	postfork = 1;
		867	}
		868
		869	#endif
		870
		871	#if EV_MULTIPLICITY
		872	struct ev_loop *
		873	#else
		874	int
		875	#endif
		876	ev_default_loop (int methods)
		877	{
		878	if (sigpipe [0] == sigpipe [1])
		879	if (pipe (sigpipe))
		880	return 0;
		881
		882	if (!default_loop)
		883	{
		884	#if EV_MULTIPLICITY
		885	struct ev_loop *loop = default_loop = &default_loop_struct;
		886	#else
		887	default_loop = 1;
		888	#endif
		889
		890	loop_init (EV_A_ methods);
		891
551	if (ev_method)	892	if (ev_method (EV_A))
552	{	893	{
553	ev_watcher_init (&sigev, sigcb);
554	siginit ();	894	siginit (EV_A);
555		895
		896	#ifndef WIN32
556	ev_signal_init (&childev, childcb, SIGCHLD);	897	ev_signal_init (&childev, childcb, SIGCHLD);
		898	ev_set_priority (&childev, EV_MAXPRI);
557	ev_signal_start (&childev);	899	ev_signal_start (EV_A_ &childev);
		900	ev_unref (EV_A); /* child watcher should not keep loop alive */
		901	#endif
558	}	902	}
		903	else
		904	default_loop = 0;
559	}	905	}
560		906
561	return ev_method;	907	return default_loop;
		908	}
		909
		910	void
		911	ev_default_destroy (void)
		912	{
		913	#if EV_MULTIPLICITY
		914	struct ev_loop *loop = default_loop;
		915	#endif
		916
		917	#ifndef WIN32
		918	ev_ref (EV_A); /* child watcher */
		919	ev_signal_stop (EV_A_ &childev);
		920	#endif
		921
		922	ev_ref (EV_A); /* signal watcher */
		923	ev_io_stop (EV_A_ &sigev);
		924
		925	close (sigpipe [0]); sigpipe [0] = 0;
		926	close (sigpipe [1]); sigpipe [1] = 0;
		927
		928	loop_destroy (EV_A);
		929	}
		930
		931	void
		932	ev_default_fork (void)
		933	{
		934	#if EV_MULTIPLICITY
		935	struct ev_loop *loop = default_loop;
		936	#endif
		937
		938	if (method)
		939	postfork = 1;
562	}	940	}
563		941
564	/*****************************************************************************/	942	/*****************************************************************************/
565		943
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	944	static int
		945	any_pending (EV_P)
		946	{
		947	int pri;
		948
		949	for (pri = NUMPRI; pri--; )
		950	if (pendingcnt [pri])
		951	return 1;
		952
		953	return 0;
		954	}
		955
		956	static void
596	call_pending (void)	957	call_pending (EV_P)
597	{	958	{
		959	int pri;
		960
		961	for (pri = NUMPRI; pri--; )
598	while (pendingcnt)	962	while (pendingcnt [pri])
599	{	963	{
600	ANPENDING *p = pendings + --pendingcnt;	964	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
601		965
602	if (p->w)	966	if (p->w)
603	{	967	{
604	p->w->pending = 0;	968	p->w->pending = 0;
605	p->w->cb (p->w, p->events);	969	EV_CB_INVOKE (p->w, p->events);
606	}	970	}
607	}	971	}
608	}	972	}
609		973
610	static void	974	static void
611	timers_reify (void)	975	timers_reify (EV_P)
612	{	976	{
613	while (timercnt && timers [0]->at <= now)	977	while (timercnt && ((WT)timers [0])->at <= mn_now)
614	{	978	{
615	struct ev_timer *w = timers [0];	979	struct ev_timer *w = timers [0];
		980
		981	assert (("inactive timer on timer heap detected", ev_is_active (w)));
616		982
617	/* first reschedule or stop timer */	983	/* first reschedule or stop timer */
618	if (w->repeat)	984	if (w->repeat)
619	{	985	{
620	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	986	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
621	w->at = now + w->repeat;	987	((WT)w)->at = mn_now + w->repeat;
622	downheap ((WT *)timers, timercnt, 0);	988	downheap ((WT *)timers, timercnt, 0);
623	}	989	}
624	else	990	else
625	ev_timer_stop (w); /* nonrepeating: stop timer */	991	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
626		992
627	event ((W)w, EV_TIMEOUT);	993	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
628	}	994	}
629	}	995	}
630		996
631	static void	997	static void
632	periodics_reify (void)	998	periodics_reify (EV_P)
633	{	999	{
634	while (periodiccnt && periodics [0]->at <= ev_now)	1000	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
635	{	1001	{
636	struct ev_periodic *w = periodics [0];	1002	struct ev_periodic *w = periodics [0];
637		1003
		1004	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1005
638	/* first reschedule or stop timer */	1006	/* first reschedule or stop timer */
639	if (w->interval)	1007	if (w->reschedule_cb)
640	{	1008	{
		1009	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1010
		1011	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1012	downheap ((WT *)periodics, periodiccnt, 0);
		1013	}
		1014	else if (w->interval)
		1015	{
641	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1016	((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));	1017	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);	1018	downheap ((WT *)periodics, periodiccnt, 0);
644	}	1019	}
645	else	1020	else
646	ev_periodic_stop (w); /* nonrepeating: stop timer */	1021	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
647		1022
648	event ((W)w, EV_PERIODIC);	1023	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
649	}	1024	}
650	}	1025	}
651		1026
652	static void	1027	static void
653	periodics_reschedule (ev_tstamp diff)	1028	periodics_reschedule (EV_P)
654	{	1029	{
655	int i;	1030	int i;
656		1031
657	/* adjust periodics after time jump */	1032	/* adjust periodics after time jump */
658	for (i = 0; i < periodiccnt; ++i)	1033	for (i = 0; i < periodiccnt; ++i)
659	{	1034	{
660	struct ev_periodic *w = periodics [i];	1035	struct ev_periodic *w = periodics [i];
661		1036
		1037	if (w->reschedule_cb)
		1038	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
662	if (w->interval)	1039	else if (w->interval)
663	{
664	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1040	((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	}	1041	}
675	}
676		1042
677	static int	1043	/* now rebuild the heap */
		1044	for (i = periodiccnt >> 1; i--; )
		1045	downheap ((WT *)periodics, periodiccnt, i);
		1046	}
		1047
		1048	inline int
678	time_update_monotonic (void)	1049	time_update_monotonic (EV_P)
679	{	1050	{
680	now = get_clock ();	1051	mn_now = get_clock ();
681		1052
682	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1053	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
683	{	1054	{
684	ev_now = now + diff;	1055	ev_rt_now = rtmn_diff + mn_now;
685	return 0;	1056	return 0;
686	}	1057	}
687	else	1058	else
688	{	1059	{
689	now_floor = now;	1060	now_floor = mn_now;
690	ev_now = ev_time ();	1061	ev_rt_now = ev_time ();
691	return 1;	1062	return 1;
692	}	1063	}
693	}	1064	}
694		1065
695	static void	1066	static void
696	time_update (void)	1067	time_update (EV_P)
697	{	1068	{
698	int i;	1069	int i;
699		1070
700	#if EV_USE_MONOTONIC	1071	#if EV_USE_MONOTONIC
701	if (expect_true (have_monotonic))	1072	if (expect_true (have_monotonic))
702	{	1073	{
703	if (time_update_monotonic ())	1074	if (time_update_monotonic (EV_A))
704	{	1075	{
705	ev_tstamp odiff = diff;	1076	ev_tstamp odiff = rtmn_diff;
706		1077
707	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1078	for (i = 4; --i; ) /* loop a few times, before making important decisions */
708	{	1079	{
709	diff = ev_now - now;	1080	rtmn_diff = ev_rt_now - mn_now;
710		1081
711	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1082	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
712	return; /* all is well */	1083	return; /* all is well */
713		1084
714	ev_now = ev_time ();	1085	ev_rt_now = ev_time ();
715	now = get_clock ();	1086	mn_now = get_clock ();
716	now_floor = now;	1087	now_floor = mn_now;
717	}	1088	}
718		1089
719	periodics_reschedule (diff - odiff);	1090	periodics_reschedule (EV_A);
720	/* no timer adjustment, as the monotonic clock doesn't jump */	1091	/* no timer adjustment, as the monotonic clock doesn't jump */
		1092	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
721	}	1093	}
722	}	1094	}
723	else	1095	else
724	#endif	1096	#endif
725	{	1097	{
726	ev_now = ev_time ();	1098	ev_rt_now = ev_time ();
727		1099
728	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1100	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
729	{	1101	{
730	periodics_reschedule (ev_now - now);	1102	periodics_reschedule (EV_A);
731		1103
732	/* adjust timers. this is easy, as the offset is the same for all */	1104	/* adjust timers. this is easy, as the offset is the same for all */
733	for (i = 0; i < timercnt; ++i)	1105	for (i = 0; i < timercnt; ++i)
734	timers [i]->at += diff;	1106	((WT)timers [i])->at += ev_rt_now - mn_now;
735	}	1107	}
736		1108
737	now = ev_now;	1109	mn_now = ev_rt_now;
738	}	1110	}
739	}	1111	}
740		1112
741	int ev_loop_done;	1113	void
		1114	ev_ref (EV_P)
		1115	{
		1116	++activecnt;
		1117	}
742		1118
		1119	void
		1120	ev_unref (EV_P)
		1121	{
		1122	--activecnt;
		1123	}
		1124
		1125	static int loop_done;
		1126
		1127	void
743	void ev_loop (int flags)	1128	ev_loop (EV_P_ int flags)
744	{	1129	{
745	double block;	1130	double block;
746	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1131	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
747		1132
748	do	1133	do
749	{	1134	{
750	/* queue check watchers (and execute them) */	1135	/* queue check watchers (and execute them) */
751	if (expect_false (preparecnt))	1136	if (expect_false (preparecnt))
752	{	1137	{
753	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1138	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
754	call_pending ();	1139	call_pending (EV_A);
755	}	1140	}
756		1141
		1142	/* we might have forked, so reify kernel state if necessary */
		1143	if (expect_false (postfork))
		1144	loop_fork (EV_A);
		1145
757	/* update fd-related kernel structures */	1146	/* update fd-related kernel structures */
758	fd_reify ();	1147	fd_reify (EV_A);
759		1148
760	/* calculate blocking time */	1149	/* calculate blocking time */
761		1150
762	/* we only need this for !monotonic clockor timers, but as we basically	1151	/* we only need this for !monotonic clock or timers, but as we basically
763	always have timers, we just calculate it always */	1152	always have timers, we just calculate it always */
764	#if EV_USE_MONOTONIC	1153	#if EV_USE_MONOTONIC
765	if (expect_true (have_monotonic))	1154	if (expect_true (have_monotonic))
766	time_update_monotonic ();	1155	time_update_monotonic (EV_A);
767	else	1156	else
768	#endif	1157	#endif
769	{	1158	{
770	ev_now = ev_time ();	1159	ev_rt_now = ev_time ();
771	now = ev_now;	1160	mn_now = ev_rt_now;
772	}	1161	}
773		1162
774	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1163	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
775	block = 0.;	1164	block = 0.;
776	else	1165	else
777	{	1166	{
778	block = MAX_BLOCKTIME;	1167	block = MAX_BLOCKTIME;
779		1168
780	if (timercnt)	1169	if (timercnt)
781	{	1170	{
782	ev_tstamp to = timers [0]->at - now + method_fudge;	1171	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
783	if (block > to) block = to;	1172	if (block > to) block = to;
784	}	1173	}
785		1174
786	if (periodiccnt)	1175	if (periodiccnt)
787	{	1176	{
788	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1177	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
789	if (block > to) block = to;	1178	if (block > to) block = to;
790	}	1179	}
791		1180
792	if (block < 0.) block = 0.;	1181	if (block < 0.) block = 0.;
793	}	1182	}
794		1183
795	method_poll (block);	1184	method_poll (EV_A_ block);
796		1185
797	/* update ev_now, do magic */	1186	/* update ev_rt_now, do magic */
798	time_update ();	1187	time_update (EV_A);
799		1188
800	/* queue pending timers and reschedule them */	1189	/* queue pending timers and reschedule them */
801	timers_reify (); /* relative timers called last */	1190	timers_reify (EV_A); /* relative timers called last */
802	periodics_reify (); /* absolute timers called first */	1191	periodics_reify (EV_A); /* absolute timers called first */
803		1192
804	/* queue idle watchers unless io or timers are pending */	1193	/* queue idle watchers unless io or timers are pending */
805	if (!pendingcnt)	1194	if (idlecnt && !any_pending (EV_A))
806	queue_events ((W *)idles, idlecnt, EV_IDLE);	1195	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
807		1196
808	/* queue check watchers, to be executed first */	1197	/* queue check watchers, to be executed first */
809	if (checkcnt)	1198	if (checkcnt)
810	queue_events ((W *)checks, checkcnt, EV_CHECK);	1199	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
811		1200
812	call_pending ();	1201	call_pending (EV_A);
813	}	1202	}
814	while (!ev_loop_done);	1203	while (activecnt && !loop_done);
815		1204
816	if (ev_loop_done != 2)	1205	if (loop_done != 2)
817	ev_loop_done = 0;	1206	loop_done = 0;
		1207	}
		1208
		1209	void
		1210	ev_unloop (EV_P_ int how)
		1211	{
		1212	loop_done = how;
818	}	1213	}
819		1214
820	/*****************************************************************************/	1215	/*****************************************************************************/
821		1216
822	static void	1217	inline void
823	wlist_add (WL *head, WL elem)	1218	wlist_add (WL *head, WL elem)
824	{	1219	{
825	elem->next = *head;	1220	elem->next = *head;
826	*head = elem;	1221	*head = elem;
827	}	1222	}
828		1223
829	static void	1224	inline void
830	wlist_del (WL *head, WL elem)	1225	wlist_del (WL *head, WL elem)
831	{	1226	{
832	while (*head)	1227	while (*head)
833	{	1228	{
834	if (*head == elem)	1229	if (*head == elem)
…		…
839		1234
840	head = &(*head)->next;	1235	head = &(*head)->next;
841	}	1236	}
842	}	1237	}
843		1238
844	static void	1239	inline void
845	ev_clear_pending (W w)	1240	ev_clear_pending (EV_P_ W w)
846	{	1241	{
847	if (w->pending)	1242	if (w->pending)
848	{	1243	{
849	pendings [w->pending - 1].w = 0;	1244	pendings [ABSPRI (w)][w->pending - 1].w = 0;
850	w->pending = 0;	1245	w->pending = 0;
851	}	1246	}
852	}	1247	}
853		1248
854	static void	1249	inline void
855	ev_start (W w, int active)	1250	ev_start (EV_P_ W w, int active)
856	{	1251	{
		1252	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
		1253	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
		1254
857	w->active = active;	1255	w->active = active;
		1256	ev_ref (EV_A);
858	}	1257	}
859		1258
860	static void	1259	inline void
861	ev_stop (W w)	1260	ev_stop (EV_P_ W w)
862	{	1261	{
		1262	ev_unref (EV_A);
863	w->active = 0;	1263	w->active = 0;
864	}	1264	}
865		1265
866	/*****************************************************************************/	1266	/*****************************************************************************/
867		1267
868	void	1268	void
869	ev_io_start (struct ev_io *w)	1269	ev_io_start (EV_P_ struct ev_io *w)
870	{	1270	{
871	int fd = w->fd;	1271	int fd = w->fd;
872		1272
873	if (ev_is_active (w))	1273	if (ev_is_active (w))
874	return;	1274	return;
875		1275
876	assert (("ev_io_start called with negative fd", fd >= 0));	1276	assert (("ev_io_start called with negative fd", fd >= 0));
877		1277
878	ev_start ((W)w, 1);	1278	ev_start (EV_A_ (W)w, 1);
879	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1279	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
880	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1280	wlist_add ((WL *)&anfds[fd].head, (WL)w);
881		1281
882	fd_change (fd);	1282	fd_change (EV_A_ fd);
883	}	1283	}
884		1284
885	void	1285	void
886	ev_io_stop (struct ev_io *w)	1286	ev_io_stop (EV_P_ struct ev_io *w)
887	{	1287	{
888	ev_clear_pending ((W)w);	1288	ev_clear_pending (EV_A_ (W)w);
889	if (!ev_is_active (w))	1289	if (!ev_is_active (w))
890	return;	1290	return;
891		1291
892	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1292	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
893	ev_stop ((W)w);	1293	ev_stop (EV_A_ (W)w);
894		1294
895	fd_change (w->fd);	1295	fd_change (EV_A_ w->fd);
896	}	1296	}
897		1297
898	void	1298	void
899	ev_timer_start (struct ev_timer *w)	1299	ev_timer_start (EV_P_ struct ev_timer *w)
900	{	1300	{
901	if (ev_is_active (w))	1301	if (ev_is_active (w))
902	return;	1302	return;
903		1303
904	w->at += now;	1304	((WT)w)->at += mn_now;
905		1305
906	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1306	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
907		1307
908	ev_start ((W)w, ++timercnt);	1308	ev_start (EV_A_ (W)w, ++timercnt);
909	array_needsize (timers, timermax, timercnt, );	1309	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
910	timers [timercnt - 1] = w;	1310	timers [timercnt - 1] = w;
911	upheap ((WT *)timers, timercnt - 1);	1311	upheap ((WT *)timers, timercnt - 1);
912	}
913		1312
		1313	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1314	}
		1315
914	void	1316	void
915	ev_timer_stop (struct ev_timer *w)	1317	ev_timer_stop (EV_P_ struct ev_timer *w)
916	{	1318	{
917	ev_clear_pending ((W)w);	1319	ev_clear_pending (EV_A_ (W)w);
918	if (!ev_is_active (w))	1320	if (!ev_is_active (w))
919	return;	1321	return;
920		1322
		1323	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1324
921	if (w->active < timercnt--)	1325	if (((W)w)->active < timercnt--)
922	{	1326	{
923	timers [w->active - 1] = timers [timercnt];	1327	timers [((W)w)->active - 1] = timers [timercnt];
924	downheap ((WT *)timers, timercnt, w->active - 1);	1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);
925	}	1329	}
926		1330
927	w->at = w->repeat;	1331	((WT)w)->at = w->repeat;
928		1332
929	ev_stop ((W)w);	1333	ev_stop (EV_A_ (W)w);
930	}	1334	}
931		1335
932	void	1336	void
933	ev_timer_again (struct ev_timer *w)	1337	ev_timer_again (EV_P_ struct ev_timer *w)
934	{	1338	{
935	if (ev_is_active (w))	1339	if (ev_is_active (w))
936	{	1340	{
937	if (w->repeat)	1341	if (w->repeat)
938	{
939	w->at = now + w->repeat;
940	downheap ((WT *)timers, timercnt, w->active - 1);	1342	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);
941	}
942	else	1343	else
943	ev_timer_stop (w);	1344	ev_timer_stop (EV_A_ w);
944	}	1345	}
945	else if (w->repeat)	1346	else if (w->repeat)
946	ev_timer_start (w);	1347	ev_timer_start (EV_A_ w);
947	}	1348	}
948		1349
949	void	1350	void
950	ev_periodic_start (struct ev_periodic *w)	1351	ev_periodic_start (EV_P_ struct ev_periodic *w)
951	{	1352	{
952	if (ev_is_active (w))	1353	if (ev_is_active (w))
953	return;	1354	return;
954		1355
		1356	if (w->reschedule_cb)
		1357	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1358	else if (w->interval)
		1359	{
955	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1360	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 */	1361	/* 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;	1362	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1363	}
960		1364
961	ev_start ((W)w, ++periodiccnt);	1365	ev_start (EV_A_ (W)w, ++periodiccnt);
962	array_needsize (periodics, periodicmax, periodiccnt, );	1366	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
963	periodics [periodiccnt - 1] = w;	1367	periodics [periodiccnt - 1] = w;
964	upheap ((WT *)periodics, periodiccnt - 1);	1368	upheap ((WT *)periodics, periodiccnt - 1);
965	}
966		1369
		1370	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1371	}
		1372
967	void	1373	void
968	ev_periodic_stop (struct ev_periodic *w)	1374	ev_periodic_stop (EV_P_ struct ev_periodic *w)
969	{	1375	{
970	ev_clear_pending ((W)w);	1376	ev_clear_pending (EV_A_ (W)w);
971	if (!ev_is_active (w))	1377	if (!ev_is_active (w))
972	return;	1378	return;
973		1379
		1380	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1381
974	if (w->active < periodiccnt--)	1382	if (((W)w)->active < periodiccnt--)
975	{	1383	{
976	periodics [w->active - 1] = periodics [periodiccnt];	1384	periodics [((W)w)->active - 1] = periodics [periodiccnt];
977	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1385	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
978	}	1386	}
979		1387
980	ev_stop ((W)w);	1388	ev_stop (EV_A_ (W)w);
981	}	1389	}
982		1390
983	void	1391	void
		1392	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1393	{
		1394	/* TODO: use adjustheap and recalculation */
		1395	ev_periodic_stop (EV_A_ w);
		1396	ev_periodic_start (EV_A_ w);
		1397	}
		1398
		1399	void
984	ev_signal_start (struct ev_signal *w)	1400	ev_idle_start (EV_P_ struct ev_idle *w)
985	{	1401	{
986	if (ev_is_active (w))	1402	if (ev_is_active (w))
987	return;	1403	return;
988		1404
		1405	ev_start (EV_A_ (W)w, ++idlecnt);
		1406	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1407	idles [idlecnt - 1] = w;
		1408	}
		1409
		1410	void
		1411	ev_idle_stop (EV_P_ struct ev_idle *w)
		1412	{
		1413	ev_clear_pending (EV_A_ (W)w);
		1414	if (ev_is_active (w))
		1415	return;
		1416
		1417	idles [((W)w)->active - 1] = idles [--idlecnt];
		1418	ev_stop (EV_A_ (W)w);
		1419	}
		1420
		1421	void
		1422	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1423	{
		1424	if (ev_is_active (w))
		1425	return;
		1426
		1427	ev_start (EV_A_ (W)w, ++preparecnt);
		1428	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1429	prepares [preparecnt - 1] = w;
		1430	}
		1431
		1432	void
		1433	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1434	{
		1435	ev_clear_pending (EV_A_ (W)w);
		1436	if (ev_is_active (w))
		1437	return;
		1438
		1439	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1440	ev_stop (EV_A_ (W)w);
		1441	}
		1442
		1443	void
		1444	ev_check_start (EV_P_ struct ev_check *w)
		1445	{
		1446	if (ev_is_active (w))
		1447	return;
		1448
		1449	ev_start (EV_A_ (W)w, ++checkcnt);
		1450	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1451	checks [checkcnt - 1] = w;
		1452	}
		1453
		1454	void
		1455	ev_check_stop (EV_P_ struct ev_check *w)
		1456	{
		1457	ev_clear_pending (EV_A_ (W)w);
		1458	if (ev_is_active (w))
		1459	return;
		1460
		1461	checks [((W)w)->active - 1] = checks [--checkcnt];
		1462	ev_stop (EV_A_ (W)w);
		1463	}
		1464
		1465	#ifndef SA_RESTART
		1466	# define SA_RESTART 0
		1467	#endif
		1468
		1469	void
		1470	ev_signal_start (EV_P_ struct ev_signal *w)
		1471	{
		1472	#if EV_MULTIPLICITY
		1473	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1474	#endif
		1475	if (ev_is_active (w))
		1476	return;
		1477
989	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1478	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
990		1479
991	ev_start ((W)w, 1);	1480	ev_start (EV_A_ (W)w, 1);
992	array_needsize (signals, signalmax, w->signum, signals_init);	1481	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
993	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1482	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
994		1483
995	if (!w->next)	1484	if (!((WL)w)->next)
996	{	1485	{
		1486	#if WIN32
		1487	signal (w->signum, sighandler);
		1488	#else
997	struct sigaction sa;	1489	struct sigaction sa;
998	sa.sa_handler = sighandler;	1490	sa.sa_handler = sighandler;
999	sigfillset (&sa.sa_mask);	1491	sigfillset (&sa.sa_mask);
1000	sa.sa_flags = 0;	1492	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1001	sigaction (w->signum, &sa, 0);	1493	sigaction (w->signum, &sa, 0);
		1494	#endif
1002	}	1495	}
1003	}	1496	}
1004		1497
1005	void	1498	void
1006	ev_signal_stop (struct ev_signal *w)	1499	ev_signal_stop (EV_P_ struct ev_signal *w)
1007	{	1500	{
1008	ev_clear_pending ((W)w);	1501	ev_clear_pending (EV_A_ (W)w);
1009	if (!ev_is_active (w))	1502	if (!ev_is_active (w))
1010	return;	1503	return;
1011		1504
1012	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1505	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1013	ev_stop ((W)w);	1506	ev_stop (EV_A_ (W)w);
1014		1507
1015	if (!signals [w->signum - 1].head)	1508	if (!signals [w->signum - 1].head)
1016	signal (w->signum, SIG_DFL);	1509	signal (w->signum, SIG_DFL);
1017	}	1510	}
1018		1511
1019	void	1512	void
1020	ev_idle_start (struct ev_idle *w)	1513	ev_child_start (EV_P_ struct ev_child *w)
1021	{	1514	{
		1515	#if EV_MULTIPLICITY
		1516	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1517	#endif
1022	if (ev_is_active (w))	1518	if (ev_is_active (w))
1023	return;	1519	return;
1024		1520
1025	ev_start ((W)w, ++idlecnt);	1521	ev_start (EV_A_ (W)w, 1);
1026	array_needsize (idles, idlemax, idlecnt, );	1522	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1027	idles [idlecnt - 1] = w;
1028	}	1523	}
1029		1524
1030	void	1525	void
1031	ev_idle_stop (struct ev_idle *w)	1526	ev_child_stop (EV_P_ struct ev_child *w)
1032	{	1527	{
1033	ev_clear_pending ((W)w);	1528	ev_clear_pending (EV_A_ (W)w);
1034	if (ev_is_active (w))	1529	if (ev_is_active (w))
1035	return;	1530	return;
1036		1531
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);	1532	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1103	ev_stop ((W)w);	1533	ev_stop (EV_A_ (W)w);
1104	}	1534	}
1105		1535
1106	/*****************************************************************************/	1536	/*****************************************************************************/
1107		1537
1108	struct ev_once	1538	struct ev_once
…		…
1112	void (cb)(int revents, void arg);	1542	void (cb)(int revents, void arg);
1113	void *arg;	1543	void *arg;
1114	};	1544	};
1115		1545
1116	static void	1546	static void
1117	once_cb (struct ev_once *once, int revents)	1547	once_cb (EV_P_ struct ev_once *once, int revents)
1118	{	1548	{
1119	void (cb)(int revents, void arg) = once->cb;	1549	void (cb)(int revents, void arg) = once->cb;
1120	void *arg = once->arg;	1550	void *arg = once->arg;
1121		1551
1122	ev_io_stop (&once->io);	1552	ev_io_stop (EV_A_ &once->io);
1123	ev_timer_stop (&once->to);	1553	ev_timer_stop (EV_A_ &once->to);
1124	free (once);	1554	ev_free (once);
1125		1555
1126	cb (revents, arg);	1556	cb (revents, arg);
1127	}	1557	}
1128		1558
1129	static void	1559	static void
1130	once_cb_io (struct ev_io *w, int revents)	1560	once_cb_io (EV_P_ struct ev_io *w, int revents)
1131	{	1561	{
1132	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1562	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1133	}	1563	}
1134		1564
1135	static void	1565	static void
1136	once_cb_to (struct ev_timer *w, int revents)	1566	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1137	{	1567	{
1138	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1568	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1139	}	1569	}
1140		1570
1141	void	1571	void
1142	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1572	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1143	{	1573	{
1144	struct ev_once *once = malloc (sizeof (struct ev_once));	1574	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1145		1575
1146	if (!once)	1576	if (!once)
1147	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1577	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1148	else	1578	else
1149	{	1579	{
1150	once->cb = cb;	1580	once->cb = cb;
1151	once->arg = arg;	1581	once->arg = arg;
1152		1582
1153	ev_watcher_init (&once->io, once_cb_io);	1583	ev_init (&once->io, once_cb_io);
1154	if (fd >= 0)	1584	if (fd >= 0)
1155	{	1585	{
1156	ev_io_set (&once->io, fd, events);	1586	ev_io_set (&once->io, fd, events);
1157	ev_io_start (&once->io);	1587	ev_io_start (EV_A_ &once->io);
1158	}	1588	}
1159		1589
1160	ev_watcher_init (&once->to, once_cb_to);	1590	ev_init (&once->to, once_cb_to);
1161	if (timeout >= 0.)	1591	if (timeout >= 0.)
1162	{	1592	{
1163	ev_timer_set (&once->to, timeout, 0.);	1593	ev_timer_set (&once->to, timeout, 0.);
1164	ev_timer_start (&once->to);	1594	ev_timer_start (EV_A_ &once->to);
1165	}	1595	}
1166	}	1596	}
1167	}	1597	}
1168		1598
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 1.86 by root, Sat Nov 10 03:19:21 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 1.86 by root, Sat Nov 10 03:19:21 2007 UTC