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

Comparing libev/ev.c (file contents):
Revision 1.60 by root, Sun Nov 4 18:29:44 2007 UTC vs.
Revision 1.103 by root, Mon Nov 12 00:31:08 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
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
53	# endif	62	# endif
54		63
55	#endif	64	#endif
56		65
57	#include <math.h>	66	#include <math.h>
58	#include <stdlib.h>	67	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	68	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	69	#include <stddef.h>
63		70
64	#include <stdio.h>	71	#include <stdio.h>
65		72
66	#include <assert.h>	73	#include <assert.h>
67	#include <errno.h>	74	#include <errno.h>
68	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
69	#ifndef WIN32	80	#ifndef _WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
70	# include <sys/wait.h>	83	# include <sys/wait.h>
		84	#else
		85	# define WIN32_LEAN_AND_MEAN
		86	# include <windows.h>
		87	# ifndef EV_SELECT_IS_WINSOCKET
		88	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	89	# endif
72	#include <sys/time.h>	90	#endif
73	#include <time.h>
74		91
75	/**/	92	/**/
76		93
77	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
…		…
106	#endif	123	#endif
107		124
108	#ifndef CLOCK_REALTIME	125	#ifndef CLOCK_REALTIME
109	# undef EV_USE_REALTIME	126	# undef EV_USE_REALTIME
110	# define EV_USE_REALTIME 0	127	# define EV_USE_REALTIME 0
		128	#endif
		129
		130	#if EV_SELECT_IS_WINSOCKET
		131	# include <winsock.h>
111	#endif	132	#endif
112		133
113	/**/	134	/**/
114		135
115	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	136	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
116	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	137	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
117	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	138	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
118	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	139	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
119		140
		141	#ifdef EV_H
		142	# include EV_H
		143	#else
120	#include "ev.h"	144	# include "ev.h"
		145	#endif
121		146
122	#if __GNUC__ >= 3	147	#if __GNUC__ >= 3
123	# define expect(expr,value) __builtin_expect ((expr),(value))	148	# define expect(expr,value) __builtin_expect ((expr),(value))
124	# define inline inline	149	# define inline inline
125	#else	150	#else
…		…
131	#define expect_true(expr) expect ((expr) != 0, 1)	156	#define expect_true(expr) expect ((expr) != 0, 1)
132		157
133	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	158	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
134	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	159	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
135		160
		161	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		162
136	typedef struct ev_watcher *W;	163	typedef struct ev_watcher *W;
137	typedef struct ev_watcher_list *WL;	164	typedef struct ev_watcher_list *WL;
138	typedef struct ev_watcher_time *WT;	165	typedef struct ev_watcher_time *WT;
139		166
140	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	167	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
141		168
		169	#ifdef _WIN32
		170	# include "ev_win32.c"
		171	#endif
		172
142	/*****************************************************************************/	173	/*****************************************************************************/
143		174
		175	static void (syserr_cb)(const char msg);
		176
		177	void ev_set_syserr_cb (void (cb)(const char msg))
		178	{
		179	syserr_cb = cb;
		180	}
		181
		182	static void
		183	syserr (const char *msg)
		184	{
		185	if (!msg)
		186	msg = "(libev) system error";
		187
		188	if (syserr_cb)
		189	syserr_cb (msg);
		190	else
		191	{
		192	perror (msg);
		193	abort ();
		194	}
		195	}
		196
		197	static void (alloc)(void *ptr, long size);
		198
		199	void ev_set_allocator (void (cb)(void *ptr, long size))
		200	{
		201	alloc = cb;
		202	}
		203
		204	static void *
		205	ev_realloc (void *ptr, long size)
		206	{
		207	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		208
		209	if (!ptr && size)
		210	{
		211	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		212	abort ();
		213	}
		214
		215	return ptr;
		216	}
		217
		218	#define ev_malloc(size) ev_realloc (0, (size))
		219	#define ev_free(ptr) ev_realloc ((ptr), 0)
		220
		221	/*****************************************************************************/
		222
144	typedef struct	223	typedef struct
145	{	224	{
146	struct ev_watcher_list *head;	225	WL head;
147	unsigned char events;	226	unsigned char events;
148	unsigned char reify;	227	unsigned char reify;
		228	#if EV_SELECT_IS_WINSOCKET
		229	SOCKET handle;
		230	#endif
149	} ANFD;	231	} ANFD;
150		232
151	typedef struct	233	typedef struct
152	{	234	{
153	W w;	235	W w;
154	int events;	236	int events;
155	} ANPENDING;	237	} ANPENDING;
156		238
157	#if EV_MULTIPLICITY	239	#if EV_MULTIPLICITY
158		240
159	struct ev_loop	241	struct ev_loop
160	{	242	{
		243	ev_tstamp ev_rt_now;
		244	#define ev_rt_now ((loop)->ev_rt_now)
161	# define VAR(name,decl) decl;	245	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	246	#include "ev_vars.h"
163	};
164	# undef VAR	247	#undef VAR
		248	};
165	# include "ev_wrap.h"	249	#include "ev_wrap.h"
		250
		251	struct ev_loop default_loop_struct;
		252	static struct ev_loop *default_loop;
166		253
167	#else	254	#else
168		255
		256	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	257	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	258	#include "ev_vars.h"
171	# undef VAR	259	#undef VAR
		260
		261	static int default_loop;
172		262
173	#endif	263	#endif
174		264
175	/*****************************************************************************/	265	/*****************************************************************************/
176		266
177	inline ev_tstamp	267	ev_tstamp
178	ev_time (void)	268	ev_time (void)
179	{	269	{
180	#if EV_USE_REALTIME	270	#if EV_USE_REALTIME
181	struct timespec ts;	271	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	272	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	291	#endif
202		292
203	return ev_time ();	293	return ev_time ();
204	}	294	}
205		295
		296	#if EV_MULTIPLICITY
206	ev_tstamp	297	ev_tstamp
207	ev_now (EV_P)	298	ev_now (EV_P)
208	{	299	{
209	return rt_now;	300	return ev_rt_now;
210	}	301	}
		302	#endif
211		303
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	304	#define array_roundsize(type,n) ((n) \| 4 & ~3)
213		305
214	#define array_needsize(base,cur,cnt,init) \	306	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	307	if (expect_false ((cnt) > cur)) \
216	{ \	308	{ \
217	int newcnt = cur; \	309	int newcnt = cur; \
218	do \	310	do \
219	{ \	311	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	312	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	313	} \
222	while ((cnt) > newcnt); \	314	while ((cnt) > newcnt); \
223	\	315	\
224	base = realloc (base, sizeof (base) (newcnt)); \	316	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	317	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	318	cur = newcnt; \
227	}	319	}
		320
		321	#define array_slim(type,stem) \
		322	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		323	{ \
		324	stem ## max = array_roundsize (stem ## cnt >> 1); \
		325	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		326	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		327	}
		328
		329	#define array_free(stem, idx) \
		330	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		331
229	/*****************************************************************************/	332	/*****************************************************************************/
230		333
231	static void	334	static void
232	anfds_init (ANFD *base, int count)	335	anfds_init (ANFD *base, int count)
…		…
239		342
240	++base;	343	++base;
241	}	344	}
242	}	345	}
243		346
244	static void	347	void
245	event (EV_P_ W w, int events)	348	ev_feed_event (EV_P_ void *w, int revents)
246	{	349	{
		350	W w_ = (W)w;
		351
247	if (w->pending)	352	if (w_->pending)
248	{	353	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	354	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	355	return;
251	}	356	}
252		357
253	w->pending = ++pendingcnt [ABSPRI (w)];	358	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	359	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	360	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	361	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	362	}
258		363
259	static void	364	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	365	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	366	{
262	int i;	367	int i;
263		368
264	for (i = 0; i < eventcnt; ++i)	369	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	370	ev_feed_event (EV_A_ events [i], type);
266	}	371	}
267		372
268	static void	373	inline void
269	fd_event (EV_P_ int fd, int events)	374	fd_event (EV_P_ int fd, int revents)
270	{	375	{
271	ANFD *anfd = anfds + fd;	376	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	377	struct ev_io *w;
273		378
274	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	379	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
275	{	380	{
276	int ev = w->events & events;	381	int ev = w->events & revents;
277		382
278	if (ev)	383	if (ev)
279	event (EV_A_ (W)w, ev);	384	ev_feed_event (EV_A_ (W)w, ev);
280	}	385	}
		386	}
		387
		388	void
		389	ev_feed_fd_event (EV_P_ int fd, int revents)
		390	{
		391	fd_event (EV_A_ fd, revents);
281	}	392	}
282		393
283	/*****************************************************************************/	394	/*****************************************************************************/
284		395
285	static void	396	static void
…		…
296	int events = 0;	407	int events = 0;
297		408
298	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	409	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
299	events \|= w->events;	410	events \|= w->events;
300		411
		412	#if EV_SELECT_IS_WINSOCKET
		413	if (events)
		414	{
		415	unsigned long argp;
		416	anfd->handle = _get_osfhandle (fd);
		417	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		418	}
		419	#endif
		420
301	anfd->reify = 0;	421	anfd->reify = 0;
302		422
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	423	method_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	424	anfd->events = events;
307	}
308	}	425	}
309		426
310	fdchangecnt = 0;	427	fdchangecnt = 0;
311	}	428	}
312		429
313	static void	430	static void
314	fd_change (EV_P_ int fd)	431	fd_change (EV_P_ int fd)
315	{	432	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	433	if (anfds [fd].reify)
317	return;	434	return;
318		435
319	anfds [fd].reify = 1;	436	anfds [fd].reify = 1;
320		437
321	++fdchangecnt;	438	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	439	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
323	fdchanges [fdchangecnt - 1] = fd;	440	fdchanges [fdchangecnt - 1] = fd;
324	}	441	}
325		442
326	static void	443	static void
327	fd_kill (EV_P_ int fd)	444	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	446	struct ev_io *w;
330		447
331	while ((w = (struct ev_io *)anfds [fd].head))	448	while ((w = (struct ev_io *)anfds [fd].head))
332	{	449	{
333	ev_io_stop (EV_A_ w);	450	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	451	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
335	}	452	}
		453	}
		454
		455	static int
		456	fd_valid (int fd)
		457	{
		458	#ifdef _WIN32
		459	return _get_osfhandle (fd) != -1;
		460	#else
		461	return fcntl (fd, F_GETFD) != -1;
		462	#endif
336	}	463	}
337		464
338	/* called on EBADF to verify fds */	465	/* called on EBADF to verify fds */
339	static void	466	static void
340	fd_ebadf (EV_P)	467	fd_ebadf (EV_P)
341	{	468	{
342	int fd;	469	int fd;
343		470
344	for (fd = 0; fd < anfdmax; ++fd)	471	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	472	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	473	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	474	fd_kill (EV_A_ fd);
348	}	475	}
349		476
350	/* called on ENOMEM in select/poll to kill some fds and retry */	477	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	478	static void
352	fd_enomem (EV_P)	479	fd_enomem (EV_P)
353	{	480	{
354	int fd = anfdmax;	481	int fd;
355		482
356	while (fd--)	483	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	484	if (anfds [fd].events)
358	{	485	{
359	close (fd);
360	fd_kill (EV_A_ fd);	486	fd_kill (EV_A_ fd);
361	return;	487	return;
362	}	488	}
363	}	489	}
364		490
365	/* susually called after fork if method needs to re-arm all fds from scratch */	491	/* usually called after fork if method needs to re-arm all fds from scratch */
366	static void	492	static void
367	fd_rearm_all (EV_P)	493	fd_rearm_all (EV_P)
368	{	494	{
369	int fd;	495	int fd;
370		496
…		…
385	WT w = heap [k];	511	WT w = heap [k];
386		512
387	while (k && heap [k >> 1]->at > w->at)	513	while (k && heap [k >> 1]->at > w->at)
388	{	514	{
389	heap [k] = heap [k >> 1];	515	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	516	((W)heap [k])->active = k + 1;
391	k >>= 1;	517	k >>= 1;
392	}	518	}
393		519
394	heap [k] = w;	520	heap [k] = w;
395	heap [k]->active = k + 1;	521	((W)heap [k])->active = k + 1;
396		522
397	}	523	}
398		524
399	static void	525	static void
400	downheap (WT *heap, int N, int k)	526	downheap (WT *heap, int N, int k)
…		…
410		536
411	if (w->at <= heap [j]->at)	537	if (w->at <= heap [j]->at)
412	break;	538	break;
413		539
414	heap [k] = heap [j];	540	heap [k] = heap [j];
415	heap [k]->active = k + 1;	541	((W)heap [k])->active = k + 1;
416	k = j;	542	k = j;
417	}	543	}
418		544
419	heap [k] = w;	545	heap [k] = w;
420	heap [k]->active = k + 1;	546	((W)heap [k])->active = k + 1;
		547	}
		548
		549	inline void
		550	adjustheap (WT *heap, int N, int k)
		551	{
		552	upheap (heap, k);
		553	downheap (heap, N, k);
421	}	554	}
422		555
423	/*****************************************************************************/	556	/*****************************************************************************/
424		557
425	typedef struct	558	typedef struct
426	{	559	{
427	struct ev_watcher_list *head;	560	WL head;
428	sig_atomic_t volatile gotsig;	561	sig_atomic_t volatile gotsig;
429	} ANSIG;	562	} ANSIG;
430		563
431	static ANSIG *signals;	564	static ANSIG *signals;
432	static int signalmax;	565	static int signalmax;
…		…
448	}	581	}
449		582
450	static void	583	static void
451	sighandler (int signum)	584	sighandler (int signum)
452	{	585	{
		586	#if _WIN32
		587	signal (signum, sighandler);
		588	#endif
		589
453	signals [signum - 1].gotsig = 1;	590	signals [signum - 1].gotsig = 1;
454		591
455	if (!gotsig)	592	if (!gotsig)
456	{	593	{
457	int old_errno = errno;	594	int old_errno = errno;
…		…
459	write (sigpipe [1], &signum, 1);	596	write (sigpipe [1], &signum, 1);
460	errno = old_errno;	597	errno = old_errno;
461	}	598	}
462	}	599	}
463		600
		601	void
		602	ev_feed_signal_event (EV_P_ int signum)
		603	{
		604	WL w;
		605
		606	#if EV_MULTIPLICITY
		607	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		608	#endif
		609
		610	--signum;
		611
		612	if (signum < 0 \|\| signum >= signalmax)
		613	return;
		614
		615	signals [signum].gotsig = 0;
		616
		617	for (w = signals [signum].head; w; w = w->next)
		618	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		619	}
		620
464	static void	621	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	622	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	623	{
467	struct ev_watcher_list *w;
468	int signum;	624	int signum;
469		625
470	read (sigpipe [0], &revents, 1);	626	read (sigpipe [0], &revents, 1);
471	gotsig = 0;	627	gotsig = 0;
472		628
473	for (signum = signalmax; signum--; )	629	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	630	if (signals [signum].gotsig)
475	{	631	ev_feed_signal_event (EV_A_ signum + 1);
476	signals [signum].gotsig = 0;	632	}
477		633
478	for (w = signals [signum].head; w; w = w->next)	634	inline void
479	event (EV_A_ (W)w, EV_SIGNAL);	635	fd_intern (int fd)
480	}	636	{
		637	#ifdef _WIN32
		638	int arg = 1;
		639	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		640	#else
		641	fcntl (fd, F_SETFD, FD_CLOEXEC);
		642	fcntl (fd, F_SETFL, O_NONBLOCK);
		643	#endif
481	}	644	}
482		645
483	static void	646	static void
484	siginit (EV_P)	647	siginit (EV_P)
485	{	648	{
486	#ifndef WIN32	649	fd_intern (sigpipe [0]);
487	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	650	fd_intern (sigpipe [1]);
488	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
489
490	/* rather than sort out wether we really need nb, set it */
491	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
492	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
493	#endif
494		651
495	ev_io_set (&sigev, sigpipe [0], EV_READ);	652	ev_io_set (&sigev, sigpipe [0], EV_READ);
496	ev_io_start (EV_A_ &sigev);	653	ev_io_start (EV_A_ &sigev);
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	654	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	655	}
499		656
500	/*****************************************************************************/	657	/*****************************************************************************/
501		658
502	#ifndef WIN32
503
504	static struct ev_child *childs [PID_HASHSIZE];	659	static struct ev_child *childs [PID_HASHSIZE];
		660
		661	#ifndef _WIN32
		662
505	static struct ev_signal childev;	663	static struct ev_signal childev;
506		664
507	#ifndef WCONTINUED	665	#ifndef WCONTINUED
508	# define WCONTINUED 0	666	# define WCONTINUED 0
509	#endif	667	#endif
…		…
514	struct ev_child *w;	672	struct ev_child *w;
515		673
516	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	674	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
517	if (w->pid == pid \|\| !w->pid)	675	if (w->pid == pid \|\| !w->pid)
518	{	676	{
519	w->priority = sw->priority; /* need to do it now */	677	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	678	w->rpid = pid;
521	w->rstatus = status;	679	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	680	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	681	}
524	}	682	}
525		683
526	static void	684	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	685	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	687	int pid, status;
530		688
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	689	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	690	{
533	/* make sure we are called again until all childs have been reaped */	691	/* make sure we are called again until all childs have been reaped */
534	event (EV_A_ (W)sw, EV_SIGNAL);	692	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		693
536	child_reap (EV_A_ sw, pid, pid, status);	694	child_reap (EV_A_ sw, pid, pid, status);
537	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	695	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
538	}	696	}
539	}	697	}
…		…
569		727
570	/* return true if we are running with elevated privileges and should ignore env variables */	728	/* return true if we are running with elevated privileges and should ignore env variables */
571	static int	729	static int
572	enable_secure (void)	730	enable_secure (void)
573	{	731	{
574	#ifdef WIN32	732	#ifdef _WIN32
575	return 0;	733	return 0;
576	#else	734	#else
577	return getuid () != geteuid ()	735	return getuid () != geteuid ()
578	\|\| getgid () != getegid ();	736	\|\| getgid () != getegid ();
579	#endif	737	#endif
…		…
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	754	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	755	have_monotonic = 1;
598	}	756	}
599	#endif	757	#endif
600		758
601	rt_now = ev_time ();	759	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	760	mn_now = get_clock ();
603	now_floor = mn_now;	761	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	762	rtmn_diff = ev_rt_now - mn_now;
605		763
606	if (methods == EVMETHOD_AUTO)	764	if (methods == EVMETHOD_AUTO)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	765	if (!enable_secure () && getenv ("LIBEV_METHODS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	766	methods = atoi (getenv ("LIBEV_METHODS"));
609	else	767	else
…		…
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	778	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
621	#endif	779	#endif
622	#if EV_USE_SELECT	780	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	781	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
624	#endif	782	#endif
		783
		784	ev_init (&sigev, sigcb);
		785	ev_set_priority (&sigev, EV_MAXPRI);
625	}	786	}
626	}	787	}
627		788
628	void	789	void
629	loop_destroy (EV_P)	790	loop_destroy (EV_P)
630	{	791	{
		792	int i;
		793
631	#if EV_USE_KQUEUE	794	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	795	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633	#endif	796	#endif
634	#if EV_USE_EPOLL	797	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	798	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
639	#endif	802	#endif
640	#if EV_USE_SELECT	803	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	804	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642	#endif	805	#endif
643		806
		807	for (i = NUMPRI; i--; )
		808	array_free (pending, [i]);
		809
		810	/* have to use the microsoft-never-gets-it-right macro */
		811	array_free (fdchange, EMPTY);
		812	array_free (timer, EMPTY);
		813	#if EV_PERIODICS
		814	array_free (periodic, EMPTY);
		815	#endif
		816	array_free (idle, EMPTY);
		817	array_free (prepare, EMPTY);
		818	array_free (check, EMPTY);
		819
644	method = 0;	820	method = 0;
645	/TODO/
646	}	821	}
647		822
648	void	823	static void
649	loop_fork (EV_P)	824	loop_fork (EV_P)
650	{	825	{
651	/TODO/
652	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	827	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654	#endif	828	#endif
655	#if EV_USE_KQUEUE	829	#if EV_USE_KQUEUE
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	830	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
657	#endif	831	#endif
		832
		833	if (ev_is_active (&sigev))
		834	{
		835	/* default loop */
		836
		837	ev_ref (EV_A);
		838	ev_io_stop (EV_A_ &sigev);
		839	close (sigpipe [0]);
		840	close (sigpipe [1]);
		841
		842	while (pipe (sigpipe))
		843	syserr ("(libev) error creating pipe");
		844
		845	siginit (EV_A);
		846	}
		847
		848	postfork = 0;
658	}	849	}
659		850
660	#if EV_MULTIPLICITY	851	#if EV_MULTIPLICITY
661	struct ev_loop *	852	struct ev_loop *
662	ev_loop_new (int methods)	853	ev_loop_new (int methods)
663	{	854	{
664	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	855	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		856
		857	memset (loop, 0, sizeof (struct ev_loop));
665		858
666	loop_init (EV_A_ methods);	859	loop_init (EV_A_ methods);
667		860
668	if (ev_method (EV_A))	861	if (ev_method (EV_A))
669	return loop;	862	return loop;
…		…
673		866
674	void	867	void
675	ev_loop_destroy (EV_P)	868	ev_loop_destroy (EV_P)
676	{	869	{
677	loop_destroy (EV_A);	870	loop_destroy (EV_A);
678	free (loop);	871	ev_free (loop);
679	}	872	}
680		873
681	void	874	void
682	ev_loop_fork (EV_P)	875	ev_loop_fork (EV_P)
683	{	876	{
684	loop_fork (EV_A);	877	postfork = 1;
685	}	878	}
686		879
687	#endif	880	#endif
688		881
689	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	883	struct ev_loop *
694	#else	884	#else
695	static int default_loop;
696
697	int	885	int
698	#endif	886	#endif
699	ev_default_loop (int methods)	887	ev_default_loop (int methods)
700	{	888	{
701	if (sigpipe [0] == sigpipe [1])	889	if (sigpipe [0] == sigpipe [1])
…		…
712		900
713	loop_init (EV_A_ methods);	901	loop_init (EV_A_ methods);
714		902
715	if (ev_method (EV_A))	903	if (ev_method (EV_A))
716	{	904	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	905	siginit (EV_A);
720		906
721	#ifndef WIN32	907	#ifndef _WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	908	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	909	ev_set_priority (&childev, EV_MAXPRI);
724	ev_signal_start (EV_A_ &childev);	910	ev_signal_start (EV_A_ &childev);
725	ev_unref (EV_A); /* child watcher should not keep loop alive */	911	ev_unref (EV_A); /* child watcher should not keep loop alive */
726	#endif	912	#endif
…		…
737	{	923	{
738	#if EV_MULTIPLICITY	924	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	925	struct ev_loop *loop = default_loop;
740	#endif	926	#endif
741		927
		928	#ifndef _WIN32
742	ev_ref (EV_A); /* child watcher */	929	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	930	ev_signal_stop (EV_A_ &childev);
		931	#endif
744		932
745	ev_ref (EV_A); /* signal watcher */	933	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	934	ev_io_stop (EV_A_ &sigev);
747		935
748	close (sigpipe [0]); sigpipe [0] = 0;	936	close (sigpipe [0]); sigpipe [0] = 0;
…		…
756	{	944	{
757	#if EV_MULTIPLICITY	945	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	946	struct ev_loop *loop = default_loop;
759	#endif	947	#endif
760		948
761	loop_fork (EV_A);	949	if (method)
762		950	postfork = 1;
763	ev_io_stop (EV_A_ &sigev);
764	close (sigpipe [0]);
765	close (sigpipe [1]);
766	pipe (sigpipe);
767
768	ev_ref (EV_A); /* signal watcher */
769	siginit (EV_A);
770	}	951	}
771		952
772	/*****************************************************************************/	953	/*****************************************************************************/
		954
		955	static int
		956	any_pending (EV_P)
		957	{
		958	int pri;
		959
		960	for (pri = NUMPRI; pri--; )
		961	if (pendingcnt [pri])
		962	return 1;
		963
		964	return 0;
		965	}
773		966
774	static void	967	static void
775	call_pending (EV_P)	968	call_pending (EV_P)
776	{	969	{
777	int pri;	970	int pri;
…		…
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	975	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		976
784	if (p->w)	977	if (p->w)
785	{	978	{
786	p->w->pending = 0;	979	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	980	EV_CB_INVOKE (p->w, p->events);
788	}	981	}
789	}	982	}
790	}	983	}
791		984
792	static void	985	static void
793	timers_reify (EV_P)	986	timers_reify (EV_P)
794	{	987	{
795	while (timercnt && timers [0]->at <= mn_now)	988	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	989	{
797	struct ev_timer *w = timers [0];	990	struct ev_timer *w = timers [0];
		991
		992	assert (("inactive timer on timer heap detected", ev_is_active (w)));
798		993
799	/* first reschedule or stop timer */	994	/* first reschedule or stop timer */
800	if (w->repeat)	995	if (w->repeat)
801	{	996	{
802	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	997	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		998
803	w->at = mn_now + w->repeat;	999	((WT)w)->at += w->repeat;
		1000	if (((WT)w)->at < mn_now)
		1001	((WT)w)->at = mn_now;
		1002
804	downheap ((WT *)timers, timercnt, 0);	1003	downheap ((WT *)timers, timercnt, 0);
805	}	1004	}
806	else	1005	else
807	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1006	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
808		1007
809	event (EV_A_ (W)w, EV_TIMEOUT);	1008	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
810	}	1009	}
811	}	1010	}
812		1011
		1012	#if EV_PERIODICS
813	static void	1013	static void
814	periodics_reify (EV_P)	1014	periodics_reify (EV_P)
815	{	1015	{
816	while (periodiccnt && periodics [0]->at <= rt_now)	1016	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
817	{	1017	{
818	struct ev_periodic *w = periodics [0];	1018	struct ev_periodic *w = periodics [0];
819		1019
		1020	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1021
820	/* first reschedule or stop timer */	1022	/* first reschedule or stop timer */
821	if (w->interval)	1023	if (w->reschedule_cb)
822	{	1024	{
		1025	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1026
		1027	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1028	downheap ((WT *)periodics, periodiccnt, 0);
		1029	}
		1030	else if (w->interval)
		1031	{
823	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1032	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
824	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1033	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
825	downheap ((WT *)periodics, periodiccnt, 0);	1034	downheap ((WT *)periodics, periodiccnt, 0);
826	}	1035	}
827	else	1036	else
828	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1037	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
829		1038
830	event (EV_A_ (W)w, EV_PERIODIC);	1039	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
831	}	1040	}
832	}	1041	}
833		1042
834	static void	1043	static void
835	periodics_reschedule (EV_P)	1044	periodics_reschedule (EV_P)
…		…
839	/* adjust periodics after time jump */	1048	/* adjust periodics after time jump */
840	for (i = 0; i < periodiccnt; ++i)	1049	for (i = 0; i < periodiccnt; ++i)
841	{	1050	{
842	struct ev_periodic *w = periodics [i];	1051	struct ev_periodic *w = periodics [i];
843		1052
		1053	if (w->reschedule_cb)
		1054	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
844	if (w->interval)	1055	else if (w->interval)
845	{
846	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1056	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
847
848	if (fabs (diff) >= 1e-4)
849	{
850	ev_periodic_stop (EV_A_ w);
851	ev_periodic_start (EV_A_ w);
852
853	i = 0; /* restart loop, inefficient, but time jumps should be rare */
854	}
855	}
856	}	1057	}
		1058
		1059	/* now rebuild the heap */
		1060	for (i = periodiccnt >> 1; i--; )
		1061	downheap ((WT *)periodics, periodiccnt, i);
857	}	1062	}
		1063	#endif
858		1064
859	inline int	1065	inline int
860	time_update_monotonic (EV_P)	1066	time_update_monotonic (EV_P)
861	{	1067	{
862	mn_now = get_clock ();	1068	mn_now = get_clock ();
863		1069
864	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1070	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
865	{	1071	{
866	rt_now = rtmn_diff + mn_now;	1072	ev_rt_now = rtmn_diff + mn_now;
867	return 0;	1073	return 0;
868	}	1074	}
869	else	1075	else
870	{	1076	{
871	now_floor = mn_now;	1077	now_floor = mn_now;
872	rt_now = ev_time ();	1078	ev_rt_now = ev_time ();
873	return 1;	1079	return 1;
874	}	1080	}
875	}	1081	}
876		1082
877	static void	1083	static void
…		…
886	{	1092	{
887	ev_tstamp odiff = rtmn_diff;	1093	ev_tstamp odiff = rtmn_diff;
888		1094
889	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1095	for (i = 4; --i; ) /* loop a few times, before making important decisions */
890	{	1096	{
891	rtmn_diff = rt_now - mn_now;	1097	rtmn_diff = ev_rt_now - mn_now;
892		1098
893	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1099	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
894	return; /* all is well */	1100	return; /* all is well */
895		1101
896	rt_now = ev_time ();	1102	ev_rt_now = ev_time ();
897	mn_now = get_clock ();	1103	mn_now = get_clock ();
898	now_floor = mn_now;	1104	now_floor = mn_now;
899	}	1105	}
900		1106
		1107	# if EV_PERIODICS
901	periodics_reschedule (EV_A);	1108	periodics_reschedule (EV_A);
		1109	# endif
902	/* no timer adjustment, as the monotonic clock doesn't jump */	1110	/* no timer adjustment, as the monotonic clock doesn't jump */
903	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1111	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
904	}	1112	}
905	}	1113	}
906	else	1114	else
907	#endif	1115	#endif
908	{	1116	{
909	rt_now = ev_time ();	1117	ev_rt_now = ev_time ();
910		1118
911	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1119	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
912	{	1120	{
		1121	#if EV_PERIODICS
913	periodics_reschedule (EV_A);	1122	periodics_reschedule (EV_A);
		1123	#endif
914		1124
915	/* adjust timers. this is easy, as the offset is the same for all */	1125	/* adjust timers. this is easy, as the offset is the same for all */
916	for (i = 0; i < timercnt; ++i)	1126	for (i = 0; i < timercnt; ++i)
917	timers [i]->at += rt_now - mn_now;	1127	((WT)timers [i])->at += ev_rt_now - mn_now;
918	}	1128	}
919		1129
920	mn_now = rt_now;	1130	mn_now = ev_rt_now;
921	}	1131	}
922	}	1132	}
923		1133
924	void	1134	void
925	ev_ref (EV_P)	1135	ev_ref (EV_P)
…		…
948	{	1158	{
949	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1159	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
950	call_pending (EV_A);	1160	call_pending (EV_A);
951	}	1161	}
952		1162
		1163	/* we might have forked, so reify kernel state if necessary */
		1164	if (expect_false (postfork))
		1165	loop_fork (EV_A);
		1166
953	/* update fd-related kernel structures */	1167	/* update fd-related kernel structures */
954	fd_reify (EV_A);	1168	fd_reify (EV_A);
955		1169
956	/* calculate blocking time */	1170	/* calculate blocking time */
957		1171
958	/* we only need this for !monotonic clockor timers, but as we basically	1172	/* we only need this for !monotonic clock or timers, but as we basically
959	always have timers, we just calculate it always */	1173	always have timers, we just calculate it always */
960	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
961	if (expect_true (have_monotonic))	1175	if (expect_true (have_monotonic))
962	time_update_monotonic (EV_A);	1176	time_update_monotonic (EV_A);
963	else	1177	else
964	#endif	1178	#endif
965	{	1179	{
966	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
967	mn_now = rt_now;	1181	mn_now = ev_rt_now;
968	}	1182	}
969		1183
970	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1184	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
971	block = 0.;	1185	block = 0.;
972	else	1186	else
973	{	1187	{
974	block = MAX_BLOCKTIME;	1188	block = MAX_BLOCKTIME;
975		1189
976	if (timercnt)	1190	if (timercnt)
977	{	1191	{
978	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1192	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
979	if (block > to) block = to;	1193	if (block > to) block = to;
980	}	1194	}
981		1195
		1196	#if EV_PERIODICS
982	if (periodiccnt)	1197	if (periodiccnt)
983	{	1198	{
984	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1199	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
985	if (block > to) block = to;	1200	if (block > to) block = to;
986	}	1201	}
		1202	#endif
987		1203
988	if (block < 0.) block = 0.;	1204	if (block < 0.) block = 0.;
989	}	1205	}
990		1206
991	method_poll (EV_A_ block);	1207	method_poll (EV_A_ block);
992		1208
993	/* update rt_now, do magic */	1209	/* update ev_rt_now, do magic */
994	time_update (EV_A);	1210	time_update (EV_A);
995		1211
996	/* queue pending timers and reschedule them */	1212	/* queue pending timers and reschedule them */
997	timers_reify (EV_A); /* relative timers called last */	1213	timers_reify (EV_A); /* relative timers called last */
		1214	#if EV_PERIODICS
998	periodics_reify (EV_A); /* absolute timers called first */	1215	periodics_reify (EV_A); /* absolute timers called first */
		1216	#endif
999		1217
1000	/* queue idle watchers unless io or timers are pending */	1218	/* queue idle watchers unless io or timers are pending */
1001	if (!pendingcnt)	1219	if (idlecnt && !any_pending (EV_A))
1002	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1220	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1003		1221
1004	/* queue check watchers, to be executed first */	1222	/* queue check watchers, to be executed first */
1005	if (checkcnt)	1223	if (checkcnt)
1006	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1224	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1081	return;	1299	return;
1082		1300
1083	assert (("ev_io_start called with negative fd", fd >= 0));	1301	assert (("ev_io_start called with negative fd", fd >= 0));
1084		1302
1085	ev_start (EV_A_ (W)w, 1);	1303	ev_start (EV_A_ (W)w, 1);
1086	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1304	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1087	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1305	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1088		1306
1089	fd_change (EV_A_ fd);	1307	fd_change (EV_A_ fd);
1090	}	1308	}
1091		1309
…		…
1094	{	1312	{
1095	ev_clear_pending (EV_A_ (W)w);	1313	ev_clear_pending (EV_A_ (W)w);
1096	if (!ev_is_active (w))	1314	if (!ev_is_active (w))
1097	return;	1315	return;
1098		1316
		1317	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1318
1099	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1319	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1100	ev_stop (EV_A_ (W)w);	1320	ev_stop (EV_A_ (W)w);
1101		1321
1102	fd_change (EV_A_ w->fd);	1322	fd_change (EV_A_ w->fd);
1103	}	1323	}
…		…
1106	ev_timer_start (EV_P_ struct ev_timer *w)	1326	ev_timer_start (EV_P_ struct ev_timer *w)
1107	{	1327	{
1108	if (ev_is_active (w))	1328	if (ev_is_active (w))
1109	return;	1329	return;
1110		1330
1111	w->at += mn_now;	1331	((WT)w)->at += mn_now;
1112		1332
1113	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1333	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1114		1334
1115	ev_start (EV_A_ (W)w, ++timercnt);	1335	ev_start (EV_A_ (W)w, ++timercnt);
1116	array_needsize (timers, timermax, timercnt, );	1336	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1117	timers [timercnt - 1] = w;	1337	timers [timercnt - 1] = w;
1118	upheap ((WT *)timers, timercnt - 1);	1338	upheap ((WT *)timers, timercnt - 1);
		1339
		1340	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1119	}	1341	}
1120		1342
1121	void	1343	void
1122	ev_timer_stop (EV_P_ struct ev_timer *w)	1344	ev_timer_stop (EV_P_ struct ev_timer *w)
1123	{	1345	{
1124	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1125	if (!ev_is_active (w))	1347	if (!ev_is_active (w))
1126	return;	1348	return;
1127		1349
		1350	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1351
1128	if (w->active < timercnt--)	1352	if (((W)w)->active < timercnt--)
1129	{	1353	{
1130	timers [w->active - 1] = timers [timercnt];	1354	timers [((W)w)->active - 1] = timers [timercnt];
1131	downheap ((WT *)timers, timercnt, w->active - 1);	1355	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1132	}	1356	}
1133		1357
1134	w->at = w->repeat;	1358	((WT)w)->at -= mn_now;
1135		1359
1136	ev_stop (EV_A_ (W)w);	1360	ev_stop (EV_A_ (W)w);
1137	}	1361	}
1138		1362
1139	void	1363	void
…		…
1141	{	1365	{
1142	if (ev_is_active (w))	1366	if (ev_is_active (w))
1143	{	1367	{
1144	if (w->repeat)	1368	if (w->repeat)
1145	{	1369	{
1146	w->at = mn_now + w->repeat;	1370	((WT)w)->at = mn_now + w->repeat;
1147	downheap ((WT *)timers, timercnt, w->active - 1);	1371	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1148	}	1372	}
1149	else	1373	else
1150	ev_timer_stop (EV_A_ w);	1374	ev_timer_stop (EV_A_ w);
1151	}	1375	}
1152	else if (w->repeat)	1376	else if (w->repeat)
1153	ev_timer_start (EV_A_ w);	1377	ev_timer_start (EV_A_ w);
1154	}	1378	}
1155		1379
		1380	#if EV_PERIODICS
1156	void	1381	void
1157	ev_periodic_start (EV_P_ struct ev_periodic *w)	1382	ev_periodic_start (EV_P_ struct ev_periodic *w)
1158	{	1383	{
1159	if (ev_is_active (w))	1384	if (ev_is_active (w))
1160	return;	1385	return;
1161		1386
		1387	if (w->reschedule_cb)
		1388	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1389	else if (w->interval)
		1390	{
1162	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1391	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1163
1164	/* this formula differs from the one in periodic_reify because we do not always round up */	1392	/* this formula differs from the one in periodic_reify because we do not always round up */
1165	if (w->interval)
1166	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1393	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1394	}
1167		1395
1168	ev_start (EV_A_ (W)w, ++periodiccnt);	1396	ev_start (EV_A_ (W)w, ++periodiccnt);
1169	array_needsize (periodics, periodicmax, periodiccnt, );	1397	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1170	periodics [periodiccnt - 1] = w;	1398	periodics [periodiccnt - 1] = w;
1171	upheap ((WT *)periodics, periodiccnt - 1);	1399	upheap ((WT *)periodics, periodiccnt - 1);
		1400
		1401	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1172	}	1402	}
1173		1403
1174	void	1404	void
1175	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1405	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1176	{	1406	{
1177	ev_clear_pending (EV_A_ (W)w);	1407	ev_clear_pending (EV_A_ (W)w);
1178	if (!ev_is_active (w))	1408	if (!ev_is_active (w))
1179	return;	1409	return;
1180		1410
		1411	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1412
1181	if (w->active < periodiccnt--)	1413	if (((W)w)->active < periodiccnt--)
1182	{	1414	{
1183	periodics [w->active - 1] = periodics [periodiccnt];	1415	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1184	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1416	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1185	}	1417	}
1186		1418
1187	ev_stop (EV_A_ (W)w);	1419	ev_stop (EV_A_ (W)w);
1188	}	1420	}
1189		1421
1190	void	1422	void
		1423	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1424	{
		1425	/* TODO: use adjustheap and recalculation */
		1426	ev_periodic_stop (EV_A_ w);
		1427	ev_periodic_start (EV_A_ w);
		1428	}
		1429	#endif
		1430
		1431	void
1191	ev_idle_start (EV_P_ struct ev_idle *w)	1432	ev_idle_start (EV_P_ struct ev_idle *w)
1192	{	1433	{
1193	if (ev_is_active (w))	1434	if (ev_is_active (w))
1194	return;	1435	return;
1195		1436
1196	ev_start (EV_A_ (W)w, ++idlecnt);	1437	ev_start (EV_A_ (W)w, ++idlecnt);
1197	array_needsize (idles, idlemax, idlecnt, );	1438	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1198	idles [idlecnt - 1] = w;	1439	idles [idlecnt - 1] = w;
1199	}	1440	}
1200		1441
1201	void	1442	void
1202	ev_idle_stop (EV_P_ struct ev_idle *w)	1443	ev_idle_stop (EV_P_ struct ev_idle *w)
1203	{	1444	{
1204	ev_clear_pending (EV_A_ (W)w);	1445	ev_clear_pending (EV_A_ (W)w);
		1446	if (!ev_is_active (w))
		1447	return;
		1448
		1449	idles [((W)w)->active - 1] = idles [--idlecnt];
		1450	ev_stop (EV_A_ (W)w);
		1451	}
		1452
		1453	void
		1454	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1455	{
1205	if (ev_is_active (w))	1456	if (ev_is_active (w))
1206	return;	1457	return;
1207		1458
1208	idles [w->active - 1] = idles [--idlecnt];	1459	ev_start (EV_A_ (W)w, ++preparecnt);
		1460	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1461	prepares [preparecnt - 1] = w;
		1462	}
		1463
		1464	void
		1465	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1466	{
		1467	ev_clear_pending (EV_A_ (W)w);
		1468	if (!ev_is_active (w))
		1469	return;
		1470
		1471	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1209	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1210	}	1473	}
1211		1474
1212	void	1475	void
1213	ev_prepare_start (EV_P_ struct ev_prepare *w)	1476	ev_check_start (EV_P_ struct ev_check *w)
1214	{	1477	{
1215	if (ev_is_active (w))	1478	if (ev_is_active (w))
1216	return;	1479	return;
1217		1480
1218	ev_start (EV_A_ (W)w, ++preparecnt);	1481	ev_start (EV_A_ (W)w, ++checkcnt);
1219	array_needsize (prepares, preparemax, preparecnt, );	1482	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1220	prepares [preparecnt - 1] = w;	1483	checks [checkcnt - 1] = w;
1221	}	1484	}
1222		1485
1223	void	1486	void
1224	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1487	ev_check_stop (EV_P_ struct ev_check *w)
1225	{	1488	{
1226	ev_clear_pending (EV_A_ (W)w);	1489	ev_clear_pending (EV_A_ (W)w);
1227	if (ev_is_active (w))	1490	if (!ev_is_active (w))
1228	return;	1491	return;
1229		1492
1230	prepares [w->active - 1] = prepares [--preparecnt];
1231	ev_stop (EV_A_ (W)w);
1232	}
1233
1234	void
1235	ev_check_start (EV_P_ struct ev_check *w)
1236	{
1237	if (ev_is_active (w))
1238	return;
1239
1240	ev_start (EV_A_ (W)w, ++checkcnt);
1241	array_needsize (checks, checkmax, checkcnt, );
1242	checks [checkcnt - 1] = w;
1243	}
1244
1245	void
1246	ev_check_stop (EV_P_ struct ev_check *w)
1247	{
1248	ev_clear_pending (EV_A_ (W)w);
1249	if (ev_is_active (w))
1250	return;
1251
1252	checks [w->active - 1] = checks [--checkcnt];	1493	checks [((W)w)->active - 1] = checks [--checkcnt];
1253	ev_stop (EV_A_ (W)w);	1494	ev_stop (EV_A_ (W)w);
1254	}	1495	}
1255		1496
1256	#ifndef SA_RESTART	1497	#ifndef SA_RESTART
1257	# define SA_RESTART 0	1498	# define SA_RESTART 0
…		…
1267	return;	1508	return;
1268		1509
1269	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1510	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1270		1511
1271	ev_start (EV_A_ (W)w, 1);	1512	ev_start (EV_A_ (W)w, 1);
1272	array_needsize (signals, signalmax, w->signum, signals_init);	1513	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1273	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1514	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1274		1515
1275	if (!w->next)	1516	if (!((WL)w)->next)
1276	{	1517	{
		1518	#if _WIN32
		1519	signal (w->signum, sighandler);
		1520	#else
1277	struct sigaction sa;	1521	struct sigaction sa;
1278	sa.sa_handler = sighandler;	1522	sa.sa_handler = sighandler;
1279	sigfillset (&sa.sa_mask);	1523	sigfillset (&sa.sa_mask);
1280	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1524	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1281	sigaction (w->signum, &sa, 0);	1525	sigaction (w->signum, &sa, 0);
		1526	#endif
1282	}	1527	}
1283	}	1528	}
1284		1529
1285	void	1530	void
1286	ev_signal_stop (EV_P_ struct ev_signal *w)	1531	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1311		1556
1312	void	1557	void
1313	ev_child_stop (EV_P_ struct ev_child *w)	1558	ev_child_stop (EV_P_ struct ev_child *w)
1314	{	1559	{
1315	ev_clear_pending (EV_A_ (W)w);	1560	ev_clear_pending (EV_A_ (W)w);
1316	if (ev_is_active (w))	1561	if (!ev_is_active (w))
1317	return;	1562	return;
1318		1563
1319	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1564	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1320	ev_stop (EV_A_ (W)w);	1565	ev_stop (EV_A_ (W)w);
1321	}	1566	}
…		…
1336	void (cb)(int revents, void arg) = once->cb;	1581	void (cb)(int revents, void arg) = once->cb;
1337	void *arg = once->arg;	1582	void *arg = once->arg;
1338		1583
1339	ev_io_stop (EV_A_ &once->io);	1584	ev_io_stop (EV_A_ &once->io);
1340	ev_timer_stop (EV_A_ &once->to);	1585	ev_timer_stop (EV_A_ &once->to);
1341	free (once);	1586	ev_free (once);
1342		1587
1343	cb (revents, arg);	1588	cb (revents, arg);
1344	}	1589	}
1345		1590
1346	static void	1591	static void
…		…
1356	}	1601	}
1357		1602
1358	void	1603	void
1359	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1604	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1360	{	1605	{
1361	struct ev_once *once = malloc (sizeof (struct ev_once));	1606	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1362		1607
1363	if (!once)	1608	if (!once)
1364	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1609	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1365	else	1610	else
1366	{	1611	{
1367	once->cb = cb;	1612	once->cb = cb;
1368	once->arg = arg;	1613	once->arg = arg;
1369		1614
1370	ev_watcher_init (&once->io, once_cb_io);	1615	ev_init (&once->io, once_cb_io);
1371	if (fd >= 0)	1616	if (fd >= 0)
1372	{	1617	{
1373	ev_io_set (&once->io, fd, events);	1618	ev_io_set (&once->io, fd, events);
1374	ev_io_start (EV_A_ &once->io);	1619	ev_io_start (EV_A_ &once->io);
1375	}	1620	}
1376		1621
1377	ev_watcher_init (&once->to, once_cb_to);	1622	ev_init (&once->to, once_cb_to);
1378	if (timeout >= 0.)	1623	if (timeout >= 0.)
1379	{	1624	{
1380	ev_timer_set (&once->to, timeout, 0.);	1625	ev_timer_set (&once->to, timeout, 0.);
1381	ev_timer_start (EV_A_ &once->to);	1626	ev_timer_start (EV_A_ &once->to);
1382	}	1627	}
1383	}	1628	}
1384	}	1629	}
1385		1630
		1631	#ifdef __cplusplus
		1632	}
		1633	#endif
		1634

Diff Legend

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

Comparing libev/ev.c (file contents): Revision 1.60 by root, Sun Nov 4 18:29:44 2007 UTC vs. Revision 1.103 by root, Mon Nov 12 00:31:08 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.60 by root, Sun Nov 4 18:29:44 2007 UTC vs.
Revision 1.103 by root, Mon Nov 12 00:31:08 2007 UTC