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

Comparing libev/ev.c (file contents):
Revision 1.67 by root, Mon Nov 5 16:42:15 2007 UTC vs.
Revision 1.105 by root, Mon Nov 12 01:02:09 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) && !defined (__APPLE__)
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) && !defined (__APPLE__)
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
79	#endif	96	#endif
80		97
81	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
83	#endif	101	#endif
84		102
85	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	104	# ifdef _WIN32
		105	# define EV_USE_POLL 0
		106	# else
		107	# define EV_USE_POLL 1
		108	# endif
87	#endif	109	#endif
88		110
89	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
91	#endif	113	#endif
92		114
93	#ifndef EV_USE_KQUEUE	115	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	116	# define EV_USE_KQUEUE 0
95	#endif
96
97	#ifndef EV_USE_WIN32
98	# ifdef WIN32
99	# define EV_USE_WIN32 1
100	# else
101	# define EV_USE_WIN32 0
102	# endif
103	#endif	117	#endif
104		118
105	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
106	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
107	#endif	121	#endif
…		…
114	#endif	128	#endif
115		129
116	#ifndef CLOCK_REALTIME	130	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	131	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	132	# define EV_USE_REALTIME 0
		133	#endif
		134
		135	#if EV_SELECT_IS_WINSOCKET
		136	# include <winsock.h>
119	#endif	137	#endif
120		138
121	/**/	139	/**/
122		140
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	141	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
124	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	142	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
125	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	143	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
126	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	144	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
127		145
		146	#ifdef EV_H
		147	# include EV_H
		148	#else
128	#include "ev.h"	149	# include "ev.h"
		150	#endif
129		151
130	#if __GNUC__ >= 3	152	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	153	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	154	# define inline inline
133	#else	155	#else
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	161	#define expect_true(expr) expect ((expr) != 0, 1)
140		162
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	163	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	164	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		165
		166	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		167
144	typedef struct ev_watcher *W;	168	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	169	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	170	typedef struct ev_watcher_time *WT;
147		171
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	172	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		173
150	#if WIN32	174	#ifdef _WIN32
151	/* note: the comment below could not be substantiated, but what would I care */	175	# include "ev_win32.c"
152	/* MSDN says this is required to handle SIGFPE */
153	volatile double SIGFPE_REQ = 0.0f;
154	#endif	176	#endif
155		177
156	/*****************************************************************************/	178	/*****************************************************************************/
157		179
		180	static void (syserr_cb)(const char msg);
		181
		182	void ev_set_syserr_cb (void (cb)(const char msg))
		183	{
		184	syserr_cb = cb;
		185	}
		186
		187	static void
		188	syserr (const char *msg)
		189	{
		190	if (!msg)
		191	msg = "(libev) system error";
		192
		193	if (syserr_cb)
		194	syserr_cb (msg);
		195	else
		196	{
		197	perror (msg);
		198	abort ();
		199	}
		200	}
		201
		202	static void (alloc)(void *ptr, long size);
		203
		204	void ev_set_allocator (void (cb)(void *ptr, long size))
		205	{
		206	alloc = cb;
		207	}
		208
		209	static void *
		210	ev_realloc (void *ptr, long size)
		211	{
		212	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		213
		214	if (!ptr && size)
		215	{
		216	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		217	abort ();
		218	}
		219
		220	return ptr;
		221	}
		222
		223	#define ev_malloc(size) ev_realloc (0, (size))
		224	#define ev_free(ptr) ev_realloc ((ptr), 0)
		225
		226	/*****************************************************************************/
		227
158	typedef struct	228	typedef struct
159	{	229	{
160	struct ev_watcher_list *head;	230	WL head;
161	unsigned char events;	231	unsigned char events;
162	unsigned char reify;	232	unsigned char reify;
		233	#if EV_SELECT_IS_WINSOCKET
		234	SOCKET handle;
		235	#endif
163	} ANFD;	236	} ANFD;
164		237
165	typedef struct	238	typedef struct
166	{	239	{
167	W w;	240	W w;
168	int events;	241	int events;
169	} ANPENDING;	242	} ANPENDING;
170		243
171	#if EV_MULTIPLICITY	244	#if EV_MULTIPLICITY
172		245
173	struct ev_loop	246	struct ev_loop
174	{	247	{
		248	ev_tstamp ev_rt_now;
		249	#define ev_rt_now ((loop)->ev_rt_now)
175	# define VAR(name,decl) decl;	250	#define VAR(name,decl) decl;
176	# include "ev_vars.h"	251	#include "ev_vars.h"
177	};
178	# undef VAR	252	#undef VAR
		253	};
179	# include "ev_wrap.h"	254	#include "ev_wrap.h"
		255
		256	struct ev_loop default_loop_struct;
		257	static struct ev_loop *default_loop;
180		258
181	#else	259	#else
182		260
		261	ev_tstamp ev_rt_now;
183	# define VAR(name,decl) static decl;	262	#define VAR(name,decl) static decl;
184	# include "ev_vars.h"	263	#include "ev_vars.h"
185	# undef VAR	264	#undef VAR
		265
		266	static int default_loop;
186		267
187	#endif	268	#endif
188		269
189	/*****************************************************************************/	270	/*****************************************************************************/
190		271
191	inline ev_tstamp	272	ev_tstamp
192	ev_time (void)	273	ev_time (void)
193	{	274	{
194	#if EV_USE_REALTIME	275	#if EV_USE_REALTIME
195	struct timespec ts;	276	struct timespec ts;
196	clock_gettime (CLOCK_REALTIME, &ts);	277	clock_gettime (CLOCK_REALTIME, &ts);
…		…
215	#endif	296	#endif
216		297
217	return ev_time ();	298	return ev_time ();
218	}	299	}
219		300
		301	#if EV_MULTIPLICITY
220	ev_tstamp	302	ev_tstamp
221	ev_now (EV_P)	303	ev_now (EV_P)
222	{	304	{
223	return rt_now;	305	return ev_rt_now;
224	}	306	}
		307	#endif
225		308
226	#define array_roundsize(base,n) ((n) \| 4 & ~3)	309	#define array_roundsize(type,n) ((n) \| 4 & ~3)
227		310
228	#define array_needsize(base,cur,cnt,init) \	311	#define array_needsize(type,base,cur,cnt,init) \
229	if (expect_false ((cnt) > cur)) \	312	if (expect_false ((cnt) > cur)) \
230	{ \	313	{ \
231	int newcnt = cur; \	314	int newcnt = cur; \
232	do \	315	do \
233	{ \	316	{ \
234	newcnt = array_roundsize (base, newcnt << 1); \	317	newcnt = array_roundsize (type, newcnt << 1); \
235	} \	318	} \
236	while ((cnt) > newcnt); \	319	while ((cnt) > newcnt); \
237	\	320	\
238	base = realloc (base, sizeof (base) (newcnt)); \	321	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
239	init (base + cur, newcnt - cur); \	322	init (base + cur, newcnt - cur); \
240	cur = newcnt; \	323	cur = newcnt; \
241	}	324	}
242		325
243	#define array_slim(stem) \	326	#define array_slim(type,stem) \
244	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	327	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
245	{ \	328	{ \
246	stem ## max = array_roundsize (stem ## cnt >> 1); \	329	stem ## max = array_roundsize (stem ## cnt >> 1); \
247	base = realloc (base, sizeof (base) (stem ## max)); \	330	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
248	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	331	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
249	}	332	}
250		333
251	#define array_free(stem, idx) \	334	#define array_free(stem, idx) \
252	free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	335	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
253		336
254	/*****************************************************************************/	337	/*****************************************************************************/
255		338
256	static void	339	static void
257	anfds_init (ANFD *base, int count)	340	anfds_init (ANFD *base, int count)
…		…
264		347
265	++base;	348	++base;
266	}	349	}
267	}	350	}
268		351
269	static void	352	void
270	event (EV_P_ W w, int events)	353	ev_feed_event (EV_P_ void *w, int revents)
271	{	354	{
		355	W w_ = (W)w;
		356
272	if (w->pending)	357	if (w_->pending)
273	{	358	{
274	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
275	return;	360	return;
276	}	361	}
277		362
278	w->pending = ++pendingcnt [ABSPRI (w)];	363	w_->pending = ++pendingcnt [ABSPRI (w_)];
279	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	364	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
280	pendings [ABSPRI (w)][w->pending - 1].w = w;	365	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
281	pendings [ABSPRI (w)][w->pending - 1].events = events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
282	}	367	}
283		368
284	static void	369	static void
285	queue_events (EV_P_ W *events, int eventcnt, int type)	370	queue_events (EV_P_ W *events, int eventcnt, int type)
286	{	371	{
287	int i;	372	int i;
288		373
289	for (i = 0; i < eventcnt; ++i)	374	for (i = 0; i < eventcnt; ++i)
290	event (EV_A_ events [i], type);	375	ev_feed_event (EV_A_ events [i], type);
291	}	376	}
292		377
293	static void	378	inline void
294	fd_event (EV_P_ int fd, int events)	379	fd_event (EV_P_ int fd, int revents)
295	{	380	{
296	ANFD *anfd = anfds + fd;	381	ANFD *anfd = anfds + fd;
297	struct ev_io *w;	382	struct ev_io *w;
298		383
299	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	384	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
300	{	385	{
301	int ev = w->events & events;	386	int ev = w->events & revents;
302		387
303	if (ev)	388	if (ev)
304	event (EV_A_ (W)w, ev);	389	ev_feed_event (EV_A_ (W)w, ev);
305	}	390	}
		391	}
		392
		393	void
		394	ev_feed_fd_event (EV_P_ int fd, int revents)
		395	{
		396	fd_event (EV_A_ fd, revents);
306	}	397	}
307		398
308	/*****************************************************************************/	399	/*****************************************************************************/
309		400
310	static void	401	static void
…		…
321	int events = 0;	412	int events = 0;
322		413
323	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	414	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
324	events \|= w->events;	415	events \|= w->events;
325		416
		417	#if EV_SELECT_IS_WINSOCKET
		418	if (events)
		419	{
		420	unsigned long argp;
		421	anfd->handle = _get_osfhandle (fd);
		422	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		423	}
		424	#endif
		425
326	anfd->reify = 0;	426	anfd->reify = 0;
327		427
328	method_modify (EV_A_ fd, anfd->events, events);	428	method_modify (EV_A_ fd, anfd->events, events);
329	anfd->events = events;	429	anfd->events = events;
330	}	430	}
…		…
333	}	433	}
334		434
335	static void	435	static void
336	fd_change (EV_P_ int fd)	436	fd_change (EV_P_ int fd)
337	{	437	{
338	if (anfds [fd].reify \|\| fdchangecnt < 0)	438	if (anfds [fd].reify)
339	return;	439	return;
340		440
341	anfds [fd].reify = 1;	441	anfds [fd].reify = 1;
342		442
343	++fdchangecnt;	443	++fdchangecnt;
344	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	444	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
345	fdchanges [fdchangecnt - 1] = fd;	445	fdchanges [fdchangecnt - 1] = fd;
346	}	446	}
347		447
348	static void	448	static void
349	fd_kill (EV_P_ int fd)	449	fd_kill (EV_P_ int fd)
…		…
351	struct ev_io *w;	451	struct ev_io *w;
352		452
353	while ((w = (struct ev_io *)anfds [fd].head))	453	while ((w = (struct ev_io *)anfds [fd].head))
354	{	454	{
355	ev_io_stop (EV_A_ w);	455	ev_io_stop (EV_A_ w);
356	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	456	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
357	}	457	}
		458	}
		459
		460	static int
		461	fd_valid (int fd)
		462	{
		463	#ifdef _WIN32
		464	return _get_osfhandle (fd) != -1;
		465	#else
		466	return fcntl (fd, F_GETFD) != -1;
		467	#endif
358	}	468	}
359		469
360	/* called on EBADF to verify fds */	470	/* called on EBADF to verify fds */
361	static void	471	static void
362	fd_ebadf (EV_P)	472	fd_ebadf (EV_P)
363	{	473	{
364	int fd;	474	int fd;
365		475
366	for (fd = 0; fd < anfdmax; ++fd)	476	for (fd = 0; fd < anfdmax; ++fd)
367	if (anfds [fd].events)	477	if (anfds [fd].events)
368	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	478	if (!fd_valid (fd) == -1 && errno == EBADF)
369	fd_kill (EV_A_ fd);	479	fd_kill (EV_A_ fd);
370	}	480	}
371		481
372	/* called on ENOMEM in select/poll to kill some fds and retry */	482	/* called on ENOMEM in select/poll to kill some fds and retry */
373	static void	483	static void
…		…
376	int fd;	486	int fd;
377		487
378	for (fd = anfdmax; fd--; )	488	for (fd = anfdmax; fd--; )
379	if (anfds [fd].events)	489	if (anfds [fd].events)
380	{	490	{
381	close (fd);
382	fd_kill (EV_A_ fd);	491	fd_kill (EV_A_ fd);
383	return;	492	return;
384	}	493	}
385	}	494	}
386		495
387	/* susually called after fork if method needs to re-arm all fds from scratch */	496	/* usually called after fork if method needs to re-arm all fds from scratch */
388	static void	497	static void
389	fd_rearm_all (EV_P)	498	fd_rearm_all (EV_P)
390	{	499	{
391	int fd;	500	int fd;
392		501
…		…
440		549
441	heap [k] = w;	550	heap [k] = w;
442	((W)heap [k])->active = k + 1;	551	((W)heap [k])->active = k + 1;
443	}	552	}
444		553
		554	inline void
		555	adjustheap (WT *heap, int N, int k)
		556	{
		557	upheap (heap, k);
		558	downheap (heap, N, k);
		559	}
		560
445	/*****************************************************************************/	561	/*****************************************************************************/
446		562
447	typedef struct	563	typedef struct
448	{	564	{
449	struct ev_watcher_list *head;	565	WL head;
450	sig_atomic_t volatile gotsig;	566	sig_atomic_t volatile gotsig;
451	} ANSIG;	567	} ANSIG;
452		568
453	static ANSIG *signals;	569	static ANSIG *signals;
454	static int signalmax;	570	static int signalmax;
…		…
470	}	586	}
471		587
472	static void	588	static void
473	sighandler (int signum)	589	sighandler (int signum)
474	{	590	{
475	#if WIN32	591	#if _WIN32
476	signal (signum, sighandler);	592	signal (signum, sighandler);
477	#endif	593	#endif
478		594
479	signals [signum - 1].gotsig = 1;	595	signals [signum - 1].gotsig = 1;
480		596
…		…
485	write (sigpipe [1], &signum, 1);	601	write (sigpipe [1], &signum, 1);
486	errno = old_errno;	602	errno = old_errno;
487	}	603	}
488	}	604	}
489		605
		606	void
		607	ev_feed_signal_event (EV_P_ int signum)
		608	{
		609	WL w;
		610
		611	#if EV_MULTIPLICITY
		612	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		613	#endif
		614
		615	--signum;
		616
		617	if (signum < 0 \|\| signum >= signalmax)
		618	return;
		619
		620	signals [signum].gotsig = 0;
		621
		622	for (w = signals [signum].head; w; w = w->next)
		623	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		624	}
		625
490	static void	626	static void
491	sigcb (EV_P_ struct ev_io *iow, int revents)	627	sigcb (EV_P_ struct ev_io *iow, int revents)
492	{	628	{
493	struct ev_watcher_list *w;
494	int signum;	629	int signum;
495		630
496	read (sigpipe [0], &revents, 1);	631	read (sigpipe [0], &revents, 1);
497	gotsig = 0;	632	gotsig = 0;
498		633
499	for (signum = signalmax; signum--; )	634	for (signum = signalmax; signum--; )
500	if (signals [signum].gotsig)	635	if (signals [signum].gotsig)
501	{	636	ev_feed_signal_event (EV_A_ signum + 1);
502	signals [signum].gotsig = 0;	637	}
503		638
504	for (w = signals [signum].head; w; w = w->next)	639	inline void
505	event (EV_A_ (W)w, EV_SIGNAL);	640	fd_intern (int fd)
506	}	641	{
		642	#ifdef _WIN32
		643	int arg = 1;
		644	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		645	#else
		646	fcntl (fd, F_SETFD, FD_CLOEXEC);
		647	fcntl (fd, F_SETFL, O_NONBLOCK);
		648	#endif
507	}	649	}
508		650
509	static void	651	static void
510	siginit (EV_P)	652	siginit (EV_P)
511	{	653	{
512	#ifndef WIN32	654	fd_intern (sigpipe [0]);
513	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	655	fd_intern (sigpipe [1]);
514	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
515
516	/* rather than sort out wether we really need nb, set it */
517	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
518	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
519	#endif
520		656
521	ev_io_set (&sigev, sigpipe [0], EV_READ);	657	ev_io_set (&sigev, sigpipe [0], EV_READ);
522	ev_io_start (EV_A_ &sigev);	658	ev_io_start (EV_A_ &sigev);
523	ev_unref (EV_A); /* child watcher should not keep loop alive */	659	ev_unref (EV_A); /* child watcher should not keep loop alive */
524	}	660	}
525		661
526	/*****************************************************************************/	662	/*****************************************************************************/
527		663
528	#ifndef WIN32
529
530	static struct ev_child *childs [PID_HASHSIZE];	664	static struct ev_child *childs [PID_HASHSIZE];
		665
		666	#ifndef _WIN32
		667
531	static struct ev_signal childev;	668	static struct ev_signal childev;
532		669
533	#ifndef WCONTINUED	670	#ifndef WCONTINUED
534	# define WCONTINUED 0	671	# define WCONTINUED 0
535	#endif	672	#endif
…		…
543	if (w->pid == pid \|\| !w->pid)	680	if (w->pid == pid \|\| !w->pid)
544	{	681	{
545	ev_priority (w) = ev_priority (sw); /* need to do it now */	682	ev_priority (w) = ev_priority (sw); /* need to do it now */
546	w->rpid = pid;	683	w->rpid = pid;
547	w->rstatus = status;	684	w->rstatus = status;
548	event (EV_A_ (W)w, EV_CHILD);	685	ev_feed_event (EV_A_ (W)w, EV_CHILD);
549	}	686	}
550	}	687	}
551		688
552	static void	689	static void
553	childcb (EV_P_ struct ev_signal *sw, int revents)	690	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
555	int pid, status;	692	int pid, status;
556		693
557	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	694	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
558	{	695	{
559	/* make sure we are called again until all childs have been reaped */	696	/* make sure we are called again until all childs have been reaped */
560	event (EV_A_ (W)sw, EV_SIGNAL);	697	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
561		698
562	child_reap (EV_A_ sw, pid, pid, status);	699	child_reap (EV_A_ sw, pid, pid, status);
563	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	700	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
564	}	701	}
565	}	702	}
…		…
595		732
596	/* return true if we are running with elevated privileges and should ignore env variables */	733	/* return true if we are running with elevated privileges and should ignore env variables */
597	static int	734	static int
598	enable_secure (void)	735	enable_secure (void)
599	{	736	{
600	#ifdef WIN32	737	#ifdef _WIN32
601	return 0;	738	return 0;
602	#else	739	#else
603	return getuid () != geteuid ()	740	return getuid () != geteuid ()
604	\|\| getgid () != getegid ();	741	\|\| getgid () != getegid ();
605	#endif	742	#endif
…		…
622	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	759	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
623	have_monotonic = 1;	760	have_monotonic = 1;
624	}	761	}
625	#endif	762	#endif
626		763
627	rt_now = ev_time ();	764	ev_rt_now = ev_time ();
628	mn_now = get_clock ();	765	mn_now = get_clock ();
629	now_floor = mn_now;	766	now_floor = mn_now;
630	rtmn_diff = rt_now - mn_now;	767	rtmn_diff = ev_rt_now - mn_now;
631		768
632	if (methods == EVMETHOD_AUTO)	769	if (methods == EVMETHOD_AUTO)
633	if (!enable_secure () && getenv ("LIBEV_METHODS"))	770	if (!enable_secure () && getenv ("LIBEV_METHODS"))
634	methods = atoi (getenv ("LIBEV_METHODS"));	771	methods = atoi (getenv ("LIBEV_METHODS"));
635	else	772	else
636	methods = EVMETHOD_ANY;	773	methods = EVMETHOD_ANY;
637		774
638	method = 0;	775	method = 0;
639	#if EV_USE_WIN32
640	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
641	#endif
642	#if EV_USE_KQUEUE	776	#if EV_USE_KQUEUE
643	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	777	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
644	#endif	778	#endif
645	#if EV_USE_EPOLL	779	#if EV_USE_EPOLL
646	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	780	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
…		…
649	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	783	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
650	#endif	784	#endif
651	#if EV_USE_SELECT	785	#if EV_USE_SELECT
652	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	786	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
653	#endif	787	#endif
		788
		789	ev_init (&sigev, sigcb);
		790	ev_set_priority (&sigev, EV_MAXPRI);
654	}	791	}
655	}	792	}
656		793
657	void	794	void
658	loop_destroy (EV_P)	795	loop_destroy (EV_P)
659	{	796	{
660	int i;	797	int i;
661		798
662	#if EV_USE_WIN32
663	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
664	#endif
665	#if EV_USE_KQUEUE	799	#if EV_USE_KQUEUE
666	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	800	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
667	#endif	801	#endif
668	#if EV_USE_EPOLL	802	#if EV_USE_EPOLL
669	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	803	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
676	#endif	810	#endif
677		811
678	for (i = NUMPRI; i--; )	812	for (i = NUMPRI; i--; )
679	array_free (pending, [i]);	813	array_free (pending, [i]);
680		814
		815	/* have to use the microsoft-never-gets-it-right macro */
681	array_free (fdchange, );	816	array_free (fdchange, EMPTY);
682	array_free (timer, );	817	array_free (timer, EMPTY);
		818	#if EV_PERIODICS
683	array_free (periodic, );	819	array_free (periodic, EMPTY);
		820	#endif
684	array_free (idle, );	821	array_free (idle, EMPTY);
685	array_free (prepare, );	822	array_free (prepare, EMPTY);
686	array_free (check, );	823	array_free (check, EMPTY);
687		824
688	method = 0;	825	method = 0;
689	/TODO/
690	}	826	}
691		827
692	void	828	static void
693	loop_fork (EV_P)	829	loop_fork (EV_P)
694	{	830	{
695	/TODO/
696	#if EV_USE_EPOLL	831	#if EV_USE_EPOLL
697	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	832	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
698	#endif	833	#endif
699	#if EV_USE_KQUEUE	834	#if EV_USE_KQUEUE
700	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	835	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
701	#endif	836	#endif
		837
		838	if (ev_is_active (&sigev))
		839	{
		840	/* default loop */
		841
		842	ev_ref (EV_A);
		843	ev_io_stop (EV_A_ &sigev);
		844	close (sigpipe [0]);
		845	close (sigpipe [1]);
		846
		847	while (pipe (sigpipe))
		848	syserr ("(libev) error creating pipe");
		849
		850	siginit (EV_A);
		851	}
		852
		853	postfork = 0;
702	}	854	}
703		855
704	#if EV_MULTIPLICITY	856	#if EV_MULTIPLICITY
705	struct ev_loop *	857	struct ev_loop *
706	ev_loop_new (int methods)	858	ev_loop_new (int methods)
707	{	859	{
708	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	860	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		861
		862	memset (loop, 0, sizeof (struct ev_loop));
709		863
710	loop_init (EV_A_ methods);	864	loop_init (EV_A_ methods);
711		865
712	if (ev_method (EV_A))	866	if (ev_method (EV_A))
713	return loop;	867	return loop;
…		…
717		871
718	void	872	void
719	ev_loop_destroy (EV_P)	873	ev_loop_destroy (EV_P)
720	{	874	{
721	loop_destroy (EV_A);	875	loop_destroy (EV_A);
722	free (loop);	876	ev_free (loop);
723	}	877	}
724		878
725	void	879	void
726	ev_loop_fork (EV_P)	880	ev_loop_fork (EV_P)
727	{	881	{
728	loop_fork (EV_A);	882	postfork = 1;
729	}	883	}
730		884
731	#endif	885	#endif
732		886
733	#if EV_MULTIPLICITY	887	#if EV_MULTIPLICITY
734	struct ev_loop default_loop_struct;
735	static struct ev_loop *default_loop;
736
737	struct ev_loop *	888	struct ev_loop *
738	#else	889	#else
739	static int default_loop;
740
741	int	890	int
742	#endif	891	#endif
743	ev_default_loop (int methods)	892	ev_default_loop (int methods)
744	{	893	{
745	if (sigpipe [0] == sigpipe [1])	894	if (sigpipe [0] == sigpipe [1])
…		…
756		905
757	loop_init (EV_A_ methods);	906	loop_init (EV_A_ methods);
758		907
759	if (ev_method (EV_A))	908	if (ev_method (EV_A))
760	{	909	{
761	ev_watcher_init (&sigev, sigcb);
762	ev_set_priority (&sigev, EV_MAXPRI);
763	siginit (EV_A);	910	siginit (EV_A);
764		911
765	#ifndef WIN32	912	#ifndef _WIN32
766	ev_signal_init (&childev, childcb, SIGCHLD);	913	ev_signal_init (&childev, childcb, SIGCHLD);
767	ev_set_priority (&childev, EV_MAXPRI);	914	ev_set_priority (&childev, EV_MAXPRI);
768	ev_signal_start (EV_A_ &childev);	915	ev_signal_start (EV_A_ &childev);
769	ev_unref (EV_A); /* child watcher should not keep loop alive */	916	ev_unref (EV_A); /* child watcher should not keep loop alive */
770	#endif	917	#endif
…		…
781	{	928	{
782	#if EV_MULTIPLICITY	929	#if EV_MULTIPLICITY
783	struct ev_loop *loop = default_loop;	930	struct ev_loop *loop = default_loop;
784	#endif	931	#endif
785		932
		933	#ifndef _WIN32
786	ev_ref (EV_A); /* child watcher */	934	ev_ref (EV_A); /* child watcher */
787	ev_signal_stop (EV_A_ &childev);	935	ev_signal_stop (EV_A_ &childev);
		936	#endif
788		937
789	ev_ref (EV_A); /* signal watcher */	938	ev_ref (EV_A); /* signal watcher */
790	ev_io_stop (EV_A_ &sigev);	939	ev_io_stop (EV_A_ &sigev);
791		940
792	close (sigpipe [0]); sigpipe [0] = 0;	941	close (sigpipe [0]); sigpipe [0] = 0;
…		…
800	{	949	{
801	#if EV_MULTIPLICITY	950	#if EV_MULTIPLICITY
802	struct ev_loop *loop = default_loop;	951	struct ev_loop *loop = default_loop;
803	#endif	952	#endif
804		953
805	loop_fork (EV_A);	954	if (method)
806		955	postfork = 1;
807	ev_io_stop (EV_A_ &sigev);
808	close (sigpipe [0]);
809	close (sigpipe [1]);
810	pipe (sigpipe);
811
812	ev_ref (EV_A); /* signal watcher */
813	siginit (EV_A);
814	}	956	}
815		957
816	/*****************************************************************************/	958	/*****************************************************************************/
		959
		960	static int
		961	any_pending (EV_P)
		962	{
		963	int pri;
		964
		965	for (pri = NUMPRI; pri--; )
		966	if (pendingcnt [pri])
		967	return 1;
		968
		969	return 0;
		970	}
817		971
818	static void	972	static void
819	call_pending (EV_P)	973	call_pending (EV_P)
820	{	974	{
821	int pri;	975	int pri;
…		…
826	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	980	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
827		981
828	if (p->w)	982	if (p->w)
829	{	983	{
830	p->w->pending = 0;	984	p->w->pending = 0;
831	p->w->cb (EV_A_ p->w, p->events);	985	EV_CB_INVOKE (p->w, p->events);
832	}	986	}
833	}	987	}
834	}	988	}
835		989
836	static void	990	static void
…		…
844		998
845	/* first reschedule or stop timer */	999	/* first reschedule or stop timer */
846	if (w->repeat)	1000	if (w->repeat)
847	{	1001	{
848	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1002	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1003
849	((WT)w)->at = mn_now + w->repeat;	1004	((WT)w)->at += w->repeat;
		1005	if (((WT)w)->at < mn_now)
		1006	((WT)w)->at = mn_now;
		1007
850	downheap ((WT *)timers, timercnt, 0);	1008	downheap ((WT *)timers, timercnt, 0);
851	}	1009	}
852	else	1010	else
853	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1011	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
854		1012
855	event (EV_A_ (W)w, EV_TIMEOUT);	1013	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
856	}	1014	}
857	}	1015	}
858		1016
		1017	#if EV_PERIODICS
859	static void	1018	static void
860	periodics_reify (EV_P)	1019	periodics_reify (EV_P)
861	{	1020	{
862	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1021	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
863	{	1022	{
864	struct ev_periodic *w = periodics [0];	1023	struct ev_periodic *w = periodics [0];
865		1024
866	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1025	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
867		1026
868	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
869	if (w->interval)	1028	if (w->reschedule_cb)
870	{	1029	{
		1030	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1031
		1032	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1033	downheap ((WT *)periodics, periodiccnt, 0);
		1034	}
		1035	else if (w->interval)
		1036	{
871	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1037	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
872	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1038	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
873	downheap ((WT *)periodics, periodiccnt, 0);	1039	downheap ((WT *)periodics, periodiccnt, 0);
874	}	1040	}
875	else	1041	else
876	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1042	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
877		1043
878	event (EV_A_ (W)w, EV_PERIODIC);	1044	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
879	}	1045	}
880	}	1046	}
881		1047
882	static void	1048	static void
883	periodics_reschedule (EV_P)	1049	periodics_reschedule (EV_P)
…		…
887	/* adjust periodics after time jump */	1053	/* adjust periodics after time jump */
888	for (i = 0; i < periodiccnt; ++i)	1054	for (i = 0; i < periodiccnt; ++i)
889	{	1055	{
890	struct ev_periodic *w = periodics [i];	1056	struct ev_periodic *w = periodics [i];
891		1057
		1058	if (w->reschedule_cb)
		1059	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
892	if (w->interval)	1060	else if (w->interval)
893	{
894	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1061	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
895
896	if (fabs (diff) >= 1e-4)
897	{
898	ev_periodic_stop (EV_A_ w);
899	ev_periodic_start (EV_A_ w);
900
901	i = 0; /* restart loop, inefficient, but time jumps should be rare */
902	}
903	}
904	}	1062	}
		1063
		1064	/* now rebuild the heap */
		1065	for (i = periodiccnt >> 1; i--; )
		1066	downheap ((WT *)periodics, periodiccnt, i);
905	}	1067	}
		1068	#endif
906		1069
907	inline int	1070	inline int
908	time_update_monotonic (EV_P)	1071	time_update_monotonic (EV_P)
909	{	1072	{
910	mn_now = get_clock ();	1073	mn_now = get_clock ();
911		1074
912	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1075	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
913	{	1076	{
914	rt_now = rtmn_diff + mn_now;	1077	ev_rt_now = rtmn_diff + mn_now;
915	return 0;	1078	return 0;
916	}	1079	}
917	else	1080	else
918	{	1081	{
919	now_floor = mn_now;	1082	now_floor = mn_now;
920	rt_now = ev_time ();	1083	ev_rt_now = ev_time ();
921	return 1;	1084	return 1;
922	}	1085	}
923	}	1086	}
924		1087
925	static void	1088	static void
…		…
934	{	1097	{
935	ev_tstamp odiff = rtmn_diff;	1098	ev_tstamp odiff = rtmn_diff;
936		1099
937	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1100	for (i = 4; --i; ) /* loop a few times, before making important decisions */
938	{	1101	{
939	rtmn_diff = rt_now - mn_now;	1102	rtmn_diff = ev_rt_now - mn_now;
940		1103
941	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1104	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
942	return; /* all is well */	1105	return; /* all is well */
943		1106
944	rt_now = ev_time ();	1107	ev_rt_now = ev_time ();
945	mn_now = get_clock ();	1108	mn_now = get_clock ();
946	now_floor = mn_now;	1109	now_floor = mn_now;
947	}	1110	}
948		1111
		1112	# if EV_PERIODICS
949	periodics_reschedule (EV_A);	1113	periodics_reschedule (EV_A);
		1114	# endif
950	/* no timer adjustment, as the monotonic clock doesn't jump */	1115	/* no timer adjustment, as the monotonic clock doesn't jump */
951	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1116	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
952	}	1117	}
953	}	1118	}
954	else	1119	else
955	#endif	1120	#endif
956	{	1121	{
957	rt_now = ev_time ();	1122	ev_rt_now = ev_time ();
958		1123
959	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1124	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
960	{	1125	{
		1126	#if EV_PERIODICS
961	periodics_reschedule (EV_A);	1127	periodics_reschedule (EV_A);
		1128	#endif
962		1129
963	/* adjust timers. this is easy, as the offset is the same for all */	1130	/* adjust timers. this is easy, as the offset is the same for all */
964	for (i = 0; i < timercnt; ++i)	1131	for (i = 0; i < timercnt; ++i)
965	((WT)timers [i])->at += rt_now - mn_now;	1132	((WT)timers [i])->at += ev_rt_now - mn_now;
966	}	1133	}
967		1134
968	mn_now = rt_now;	1135	mn_now = ev_rt_now;
969	}	1136	}
970	}	1137	}
971		1138
972	void	1139	void
973	ev_ref (EV_P)	1140	ev_ref (EV_P)
…		…
996	{	1163	{
997	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1164	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
998	call_pending (EV_A);	1165	call_pending (EV_A);
999	}	1166	}
1000		1167
		1168	/* we might have forked, so reify kernel state if necessary */
		1169	if (expect_false (postfork))
		1170	loop_fork (EV_A);
		1171
1001	/* update fd-related kernel structures */	1172	/* update fd-related kernel structures */
1002	fd_reify (EV_A);	1173	fd_reify (EV_A);
1003		1174
1004	/* calculate blocking time */	1175	/* calculate blocking time */
1005		1176
1006	/* we only need this for !monotonic clockor timers, but as we basically	1177	/* we only need this for !monotonic clock or timers, but as we basically
1007	always have timers, we just calculate it always */	1178	always have timers, we just calculate it always */
1008	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
1009	if (expect_true (have_monotonic))	1180	if (expect_true (have_monotonic))
1010	time_update_monotonic (EV_A);	1181	time_update_monotonic (EV_A);
1011	else	1182	else
1012	#endif	1183	#endif
1013	{	1184	{
1014	rt_now = ev_time ();	1185	ev_rt_now = ev_time ();
1015	mn_now = rt_now;	1186	mn_now = ev_rt_now;
1016	}	1187	}
1017		1188
1018	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1189	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1019	block = 0.;	1190	block = 0.;
1020	else	1191	else
…		…
1025	{	1196	{
1026	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1197	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1027	if (block > to) block = to;	1198	if (block > to) block = to;
1028	}	1199	}
1029		1200
		1201	#if EV_PERIODICS
1030	if (periodiccnt)	1202	if (periodiccnt)
1031	{	1203	{
1032	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1204	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1033	if (block > to) block = to;	1205	if (block > to) block = to;
1034	}	1206	}
		1207	#endif
1035		1208
1036	if (block < 0.) block = 0.;	1209	if (block < 0.) block = 0.;
1037	}	1210	}
1038		1211
1039	method_poll (EV_A_ block);	1212	method_poll (EV_A_ block);
1040		1213
1041	/* update rt_now, do magic */	1214	/* update ev_rt_now, do magic */
1042	time_update (EV_A);	1215	time_update (EV_A);
1043		1216
1044	/* queue pending timers and reschedule them */	1217	/* queue pending timers and reschedule them */
1045	timers_reify (EV_A); /* relative timers called last */	1218	timers_reify (EV_A); /* relative timers called last */
		1219	#if EV_PERIODICS
1046	periodics_reify (EV_A); /* absolute timers called first */	1220	periodics_reify (EV_A); /* absolute timers called first */
		1221	#endif
1047		1222
1048	/* queue idle watchers unless io or timers are pending */	1223	/* queue idle watchers unless io or timers are pending */
1049	if (!pendingcnt)	1224	if (idlecnt && !any_pending (EV_A))
1050	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1225	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1051		1226
1052	/* queue check watchers, to be executed first */	1227	/* queue check watchers, to be executed first */
1053	if (checkcnt)	1228	if (checkcnt)
1054	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1229	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1129	return;	1304	return;
1130		1305
1131	assert (("ev_io_start called with negative fd", fd >= 0));	1306	assert (("ev_io_start called with negative fd", fd >= 0));
1132		1307
1133	ev_start (EV_A_ (W)w, 1);	1308	ev_start (EV_A_ (W)w, 1);
1134	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1309	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1135	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1310	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1136		1311
1137	fd_change (EV_A_ fd);	1312	fd_change (EV_A_ fd);
1138	}	1313	}
1139		1314
…		…
1142	{	1317	{
1143	ev_clear_pending (EV_A_ (W)w);	1318	ev_clear_pending (EV_A_ (W)w);
1144	if (!ev_is_active (w))	1319	if (!ev_is_active (w))
1145	return;	1320	return;
1146		1321
		1322	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1323
1147	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1324	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1148	ev_stop (EV_A_ (W)w);	1325	ev_stop (EV_A_ (W)w);
1149		1326
1150	fd_change (EV_A_ w->fd);	1327	fd_change (EV_A_ w->fd);
1151	}	1328	}
…		…
1159	((WT)w)->at += mn_now;	1336	((WT)w)->at += mn_now;
1160		1337
1161	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1338	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1162		1339
1163	ev_start (EV_A_ (W)w, ++timercnt);	1340	ev_start (EV_A_ (W)w, ++timercnt);
1164	array_needsize (timers, timermax, timercnt, );	1341	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1165	timers [timercnt - 1] = w;	1342	timers [timercnt - 1] = w;
1166	upheap ((WT *)timers, timercnt - 1);	1343	upheap ((WT *)timers, timercnt - 1);
1167		1344
1168	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1345	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1169	}	1346	}
…		…
1178	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1355	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1179		1356
1180	if (((W)w)->active < timercnt--)	1357	if (((W)w)->active < timercnt--)
1181	{	1358	{
1182	timers [((W)w)->active - 1] = timers [timercnt];	1359	timers [((W)w)->active - 1] = timers [timercnt];
1183	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1360	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1184	}	1361	}
1185		1362
1186	((WT)w)->at = w->repeat;	1363	((WT)w)->at -= mn_now;
1187		1364
1188	ev_stop (EV_A_ (W)w);	1365	ev_stop (EV_A_ (W)w);
1189	}	1366	}
1190		1367
1191	void	1368	void
…		…
1194	if (ev_is_active (w))	1371	if (ev_is_active (w))
1195	{	1372	{
1196	if (w->repeat)	1373	if (w->repeat)
1197	{	1374	{
1198	((WT)w)->at = mn_now + w->repeat;	1375	((WT)w)->at = mn_now + w->repeat;
1199	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1376	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1200	}	1377	}
1201	else	1378	else
1202	ev_timer_stop (EV_A_ w);	1379	ev_timer_stop (EV_A_ w);
1203	}	1380	}
1204	else if (w->repeat)	1381	else if (w->repeat)
1205	ev_timer_start (EV_A_ w);	1382	ev_timer_start (EV_A_ w);
1206	}	1383	}
1207		1384
		1385	#if EV_PERIODICS
1208	void	1386	void
1209	ev_periodic_start (EV_P_ struct ev_periodic *w)	1387	ev_periodic_start (EV_P_ struct ev_periodic *w)
1210	{	1388	{
1211	if (ev_is_active (w))	1389	if (ev_is_active (w))
1212	return;	1390	return;
1213		1391
		1392	if (w->reschedule_cb)
		1393	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1394	else if (w->interval)
		1395	{
1214	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1396	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1215
1216	/* this formula differs from the one in periodic_reify because we do not always round up */	1397	/* this formula differs from the one in periodic_reify because we do not always round up */
1217	if (w->interval)
1218	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1398	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1399	}
1219		1400
1220	ev_start (EV_A_ (W)w, ++periodiccnt);	1401	ev_start (EV_A_ (W)w, ++periodiccnt);
1221	array_needsize (periodics, periodicmax, periodiccnt, );	1402	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1222	periodics [periodiccnt - 1] = w;	1403	periodics [periodiccnt - 1] = w;
1223	upheap ((WT *)periodics, periodiccnt - 1);	1404	upheap ((WT *)periodics, periodiccnt - 1);
1224		1405
1225	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1406	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1226	}	1407	}
…		…
1235	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1416	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1236		1417
1237	if (((W)w)->active < periodiccnt--)	1418	if (((W)w)->active < periodiccnt--)
1238	{	1419	{
1239	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1420	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1240	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1421	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1241	}	1422	}
1242		1423
1243	ev_stop (EV_A_ (W)w);	1424	ev_stop (EV_A_ (W)w);
1244	}	1425	}
1245		1426
1246	void	1427	void
		1428	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1429	{
		1430	/* TODO: use adjustheap and recalculation */
		1431	ev_periodic_stop (EV_A_ w);
		1432	ev_periodic_start (EV_A_ w);
		1433	}
		1434	#endif
		1435
		1436	void
1247	ev_idle_start (EV_P_ struct ev_idle *w)	1437	ev_idle_start (EV_P_ struct ev_idle *w)
1248	{	1438	{
1249	if (ev_is_active (w))	1439	if (ev_is_active (w))
1250	return;	1440	return;
1251		1441
1252	ev_start (EV_A_ (W)w, ++idlecnt);	1442	ev_start (EV_A_ (W)w, ++idlecnt);
1253	array_needsize (idles, idlemax, idlecnt, );	1443	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1254	idles [idlecnt - 1] = w;	1444	idles [idlecnt - 1] = w;
1255	}	1445	}
1256		1446
1257	void	1447	void
1258	ev_idle_stop (EV_P_ struct ev_idle *w)	1448	ev_idle_stop (EV_P_ struct ev_idle *w)
1259	{	1449	{
1260	ev_clear_pending (EV_A_ (W)w);	1450	ev_clear_pending (EV_A_ (W)w);
1261	if (ev_is_active (w))	1451	if (!ev_is_active (w))
1262	return;	1452	return;
1263		1453
1264	idles [((W)w)->active - 1] = idles [--idlecnt];	1454	idles [((W)w)->active - 1] = idles [--idlecnt];
1265	ev_stop (EV_A_ (W)w);	1455	ev_stop (EV_A_ (W)w);
1266	}	1456	}
…		…
1270	{	1460	{
1271	if (ev_is_active (w))	1461	if (ev_is_active (w))
1272	return;	1462	return;
1273		1463
1274	ev_start (EV_A_ (W)w, ++preparecnt);	1464	ev_start (EV_A_ (W)w, ++preparecnt);
1275	array_needsize (prepares, preparemax, preparecnt, );	1465	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1276	prepares [preparecnt - 1] = w;	1466	prepares [preparecnt - 1] = w;
1277	}	1467	}
1278		1468
1279	void	1469	void
1280	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1470	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1281	{	1471	{
1282	ev_clear_pending (EV_A_ (W)w);	1472	ev_clear_pending (EV_A_ (W)w);
1283	if (ev_is_active (w))	1473	if (!ev_is_active (w))
1284	return;	1474	return;
1285		1475
1286	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1476	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1287	ev_stop (EV_A_ (W)w);	1477	ev_stop (EV_A_ (W)w);
1288	}	1478	}
…		…
1292	{	1482	{
1293	if (ev_is_active (w))	1483	if (ev_is_active (w))
1294	return;	1484	return;
1295		1485
1296	ev_start (EV_A_ (W)w, ++checkcnt);	1486	ev_start (EV_A_ (W)w, ++checkcnt);
1297	array_needsize (checks, checkmax, checkcnt, );	1487	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1298	checks [checkcnt - 1] = w;	1488	checks [checkcnt - 1] = w;
1299	}	1489	}
1300		1490
1301	void	1491	void
1302	ev_check_stop (EV_P_ struct ev_check *w)	1492	ev_check_stop (EV_P_ struct ev_check *w)
1303	{	1493	{
1304	ev_clear_pending (EV_A_ (W)w);	1494	ev_clear_pending (EV_A_ (W)w);
1305	if (ev_is_active (w))	1495	if (!ev_is_active (w))
1306	return;	1496	return;
1307		1497
1308	checks [((W)w)->active - 1] = checks [--checkcnt];	1498	checks [((W)w)->active - 1] = checks [--checkcnt];
1309	ev_stop (EV_A_ (W)w);	1499	ev_stop (EV_A_ (W)w);
1310	}	1500	}
…		…
1323	return;	1513	return;
1324		1514
1325	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1515	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1326		1516
1327	ev_start (EV_A_ (W)w, 1);	1517	ev_start (EV_A_ (W)w, 1);
1328	array_needsize (signals, signalmax, w->signum, signals_init);	1518	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1329	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1519	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1330		1520
1331	if (!((WL)w)->next)	1521	if (!((WL)w)->next)
1332	{	1522	{
1333	#if WIN32	1523	#if _WIN32
1334	signal (w->signum, sighandler);	1524	signal (w->signum, sighandler);
1335	#else	1525	#else
1336	struct sigaction sa;	1526	struct sigaction sa;
1337	sa.sa_handler = sighandler;	1527	sa.sa_handler = sighandler;
1338	sigfillset (&sa.sa_mask);	1528	sigfillset (&sa.sa_mask);
…		…
1371		1561
1372	void	1562	void
1373	ev_child_stop (EV_P_ struct ev_child *w)	1563	ev_child_stop (EV_P_ struct ev_child *w)
1374	{	1564	{
1375	ev_clear_pending (EV_A_ (W)w);	1565	ev_clear_pending (EV_A_ (W)w);
1376	if (ev_is_active (w))	1566	if (!ev_is_active (w))
1377	return;	1567	return;
1378		1568
1379	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1569	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1380	ev_stop (EV_A_ (W)w);	1570	ev_stop (EV_A_ (W)w);
1381	}	1571	}
…		…
1396	void (cb)(int revents, void arg) = once->cb;	1586	void (cb)(int revents, void arg) = once->cb;
1397	void *arg = once->arg;	1587	void *arg = once->arg;
1398		1588
1399	ev_io_stop (EV_A_ &once->io);	1589	ev_io_stop (EV_A_ &once->io);
1400	ev_timer_stop (EV_A_ &once->to);	1590	ev_timer_stop (EV_A_ &once->to);
1401	free (once);	1591	ev_free (once);
1402		1592
1403	cb (revents, arg);	1593	cb (revents, arg);
1404	}	1594	}
1405		1595
1406	static void	1596	static void
…		…
1416	}	1606	}
1417		1607
1418	void	1608	void
1419	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1609	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1420	{	1610	{
1421	struct ev_once *once = malloc (sizeof (struct ev_once));	1611	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1422		1612
1423	if (!once)	1613	if (!once)
1424	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1614	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1425	else	1615	else
1426	{	1616	{
1427	once->cb = cb;	1617	once->cb = cb;
1428	once->arg = arg;	1618	once->arg = arg;
1429		1619
1430	ev_watcher_init (&once->io, once_cb_io);	1620	ev_init (&once->io, once_cb_io);
1431	if (fd >= 0)	1621	if (fd >= 0)
1432	{	1622	{
1433	ev_io_set (&once->io, fd, events);	1623	ev_io_set (&once->io, fd, events);
1434	ev_io_start (EV_A_ &once->io);	1624	ev_io_start (EV_A_ &once->io);
1435	}	1625	}
1436		1626
1437	ev_watcher_init (&once->to, once_cb_to);	1627	ev_init (&once->to, once_cb_to);
1438	if (timeout >= 0.)	1628	if (timeout >= 0.)
1439	{	1629	{
1440	ev_timer_set (&once->to, timeout, 0.);	1630	ev_timer_set (&once->to, timeout, 0.);
1441	ev_timer_start (EV_A_ &once->to);	1631	ev_timer_start (EV_A_ &once->to);
1442	}	1632	}
1443	}	1633	}
1444	}	1634	}
1445		1635
		1636	#ifdef __cplusplus
		1637	}
		1638	#endif
		1639

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Comparing libev/ev.c (file contents): Revision 1.67 by root, Mon Nov 5 16:42:15 2007 UTC vs. Revision 1.105 by root, Mon Nov 12 01:02:09 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.67 by root, Mon Nov 5 16:42:15 2007 UTC vs.
Revision 1.105 by root, Mon Nov 12 01:02:09 2007 UTC