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

Comparing libev/ev.c (file contents):
Revision 1.64 by root, Sun Nov 4 23:14:11 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
		174	#ifdef _WIN32
		175	# include "ev_win32.c"
		176	#endif
		177
150	/*****************************************************************************/	178	/*****************************************************************************/
151		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
152	typedef struct	228	typedef struct
153	{	229	{
154	struct ev_watcher_list *head;	230	WL head;
155	unsigned char events;	231	unsigned char events;
156	unsigned char reify;	232	unsigned char reify;
		233	#if EV_SELECT_IS_WINSOCKET
		234	SOCKET handle;
		235	#endif
157	} ANFD;	236	} ANFD;
158		237
159	typedef struct	238	typedef struct
160	{	239	{
161	W w;	240	W w;
162	int events;	241	int events;
163	} ANPENDING;	242	} ANPENDING;
164		243
165	#if EV_MULTIPLICITY	244	#if EV_MULTIPLICITY
166		245
167	struct ev_loop	246	struct ev_loop
168	{	247	{
		248	ev_tstamp ev_rt_now;
		249	#define ev_rt_now ((loop)->ev_rt_now)
169	# define VAR(name,decl) decl;	250	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	251	#include "ev_vars.h"
171	};
172	# undef VAR	252	#undef VAR
		253	};
173	# include "ev_wrap.h"	254	#include "ev_wrap.h"
		255
		256	struct ev_loop default_loop_struct;
		257	static struct ev_loop *default_loop;
174		258
175	#else	259	#else
176		260
		261	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	262	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	263	#include "ev_vars.h"
179	# undef VAR	264	#undef VAR
		265
		266	static int default_loop;
180		267
181	#endif	268	#endif
182		269
183	/*****************************************************************************/	270	/*****************************************************************************/
184		271
185	inline ev_tstamp	272	ev_tstamp
186	ev_time (void)	273	ev_time (void)
187	{	274	{
188	#if EV_USE_REALTIME	275	#if EV_USE_REALTIME
189	struct timespec ts;	276	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	277	clock_gettime (CLOCK_REALTIME, &ts);
…		…
209	#endif	296	#endif
210		297
211	return ev_time ();	298	return ev_time ();
212	}	299	}
213		300
		301	#if EV_MULTIPLICITY
214	ev_tstamp	302	ev_tstamp
215	ev_now (EV_P)	303	ev_now (EV_P)
216	{	304	{
217	return rt_now;	305	return ev_rt_now;
218	}	306	}
		307	#endif
219		308
220	#define array_roundsize(base,n) ((n) \| 4 & ~3)	309	#define array_roundsize(type,n) ((n) \| 4 & ~3)
221		310
222	#define array_needsize(base,cur,cnt,init) \	311	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	312	if (expect_false ((cnt) > cur)) \
224	{ \	313	{ \
225	int newcnt = cur; \	314	int newcnt = cur; \
226	do \	315	do \
227	{ \	316	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	317	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	318	} \
230	while ((cnt) > newcnt); \	319	while ((cnt) > newcnt); \
231	\	320	\
232	base = realloc (base, sizeof (base) (newcnt)); \	321	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
233	init (base + cur, newcnt - cur); \	322	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	323	cur = newcnt; \
235	}	324	}
		325
		326	#define array_slim(type,stem) \
		327	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		328	{ \
		329	stem ## max = array_roundsize (stem ## cnt >> 1); \
		330	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		331	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		332	}
		333
		334	#define array_free(stem, idx) \
		335	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
236		336
237	/*****************************************************************************/	337	/*****************************************************************************/
238		338
239	static void	339	static void
240	anfds_init (ANFD *base, int count)	340	anfds_init (ANFD *base, int count)
…		…
247		347
248	++base;	348	++base;
249	}	349	}
250	}	350	}
251		351
252	static void	352	void
253	event (EV_P_ W w, int events)	353	ev_feed_event (EV_P_ void *w, int revents)
254	{	354	{
		355	W w_ = (W)w;
		356
255	if (w->pending)	357	if (w_->pending)
256	{	358	{
257	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
258	return;	360	return;
259	}	361	}
260		362
261	w->pending = ++pendingcnt [ABSPRI (w)];	363	w_->pending = ++pendingcnt [ABSPRI (w_)];
262	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));
263	pendings [ABSPRI (w)][w->pending - 1].w = w;	365	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
264	pendings [ABSPRI (w)][w->pending - 1].events = events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
265	}	367	}
266		368
267	static void	369	static void
268	queue_events (EV_P_ W *events, int eventcnt, int type)	370	queue_events (EV_P_ W *events, int eventcnt, int type)
269	{	371	{
270	int i;	372	int i;
271		373
272	for (i = 0; i < eventcnt; ++i)	374	for (i = 0; i < eventcnt; ++i)
273	event (EV_A_ events [i], type);	375	ev_feed_event (EV_A_ events [i], type);
274	}	376	}
275		377
276	static void	378	inline void
277	fd_event (EV_P_ int fd, int events)	379	fd_event (EV_P_ int fd, int revents)
278	{	380	{
279	ANFD *anfd = anfds + fd;	381	ANFD *anfd = anfds + fd;
280	struct ev_io *w;	382	struct ev_io *w;
281		383
282	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)
283	{	385	{
284	int ev = w->events & events;	386	int ev = w->events & revents;
285		387
286	if (ev)	388	if (ev)
287	event (EV_A_ (W)w, ev);	389	ev_feed_event (EV_A_ (W)w, ev);
288	}	390	}
		391	}
		392
		393	void
		394	ev_feed_fd_event (EV_P_ int fd, int revents)
		395	{
		396	fd_event (EV_A_ fd, revents);
289	}	397	}
290		398
291	/*****************************************************************************/	399	/*****************************************************************************/
292		400
293	static void	401	static void
…		…
304	int events = 0;	412	int events = 0;
305		413
306	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)
307	events \|= w->events;	415	events \|= w->events;
308		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
309	anfd->reify = 0;	426	anfd->reify = 0;
310		427
311	method_modify (EV_A_ fd, anfd->events, events);	428	method_modify (EV_A_ fd, anfd->events, events);
312	anfd->events = events;	429	anfd->events = events;
313	}	430	}
…		…
316	}	433	}
317		434
318	static void	435	static void
319	fd_change (EV_P_ int fd)	436	fd_change (EV_P_ int fd)
320	{	437	{
321	if (anfds [fd].reify \|\| fdchangecnt < 0)	438	if (anfds [fd].reify)
322	return;	439	return;
323		440
324	anfds [fd].reify = 1;	441	anfds [fd].reify = 1;
325		442
326	++fdchangecnt;	443	++fdchangecnt;
327	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	444	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
328	fdchanges [fdchangecnt - 1] = fd;	445	fdchanges [fdchangecnt - 1] = fd;
329	}	446	}
330		447
331	static void	448	static void
332	fd_kill (EV_P_ int fd)	449	fd_kill (EV_P_ int fd)
…		…
334	struct ev_io *w;	451	struct ev_io *w;
335		452
336	while ((w = (struct ev_io *)anfds [fd].head))	453	while ((w = (struct ev_io *)anfds [fd].head))
337	{	454	{
338	ev_io_stop (EV_A_ w);	455	ev_io_stop (EV_A_ w);
339	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);
340	}	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
341	}	468	}
342		469
343	/* called on EBADF to verify fds */	470	/* called on EBADF to verify fds */
344	static void	471	static void
345	fd_ebadf (EV_P)	472	fd_ebadf (EV_P)
346	{	473	{
347	int fd;	474	int fd;
348		475
349	for (fd = 0; fd < anfdmax; ++fd)	476	for (fd = 0; fd < anfdmax; ++fd)
350	if (anfds [fd].events)	477	if (anfds [fd].events)
351	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	478	if (!fd_valid (fd) == -1 && errno == EBADF)
352	fd_kill (EV_A_ fd);	479	fd_kill (EV_A_ fd);
353	}	480	}
354		481
355	/* 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 */
356	static void	483	static void
…		…
359	int fd;	486	int fd;
360		487
361	for (fd = anfdmax; fd--; )	488	for (fd = anfdmax; fd--; )
362	if (anfds [fd].events)	489	if (anfds [fd].events)
363	{	490	{
364	close (fd);
365	fd_kill (EV_A_ fd);	491	fd_kill (EV_A_ fd);
366	return;	492	return;
367	}	493	}
368	}	494	}
369		495
370	/* 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 */
371	static void	497	static void
372	fd_rearm_all (EV_P)	498	fd_rearm_all (EV_P)
373	{	499	{
374	int fd;	500	int fd;
375		501
…		…
423		549
424	heap [k] = w;	550	heap [k] = w;
425	((W)heap [k])->active = k + 1;	551	((W)heap [k])->active = k + 1;
426	}	552	}
427		553
		554	inline void
		555	adjustheap (WT *heap, int N, int k)
		556	{
		557	upheap (heap, k);
		558	downheap (heap, N, k);
		559	}
		560
428	/*****************************************************************************/	561	/*****************************************************************************/
429		562
430	typedef struct	563	typedef struct
431	{	564	{
432	struct ev_watcher_list *head;	565	WL head;
433	sig_atomic_t volatile gotsig;	566	sig_atomic_t volatile gotsig;
434	} ANSIG;	567	} ANSIG;
435		568
436	static ANSIG *signals;	569	static ANSIG *signals;
437	static int signalmax;	570	static int signalmax;
…		…
453	}	586	}
454		587
455	static void	588	static void
456	sighandler (int signum)	589	sighandler (int signum)
457	{	590	{
		591	#if _WIN32
		592	signal (signum, sighandler);
		593	#endif
		594
458	signals [signum - 1].gotsig = 1;	595	signals [signum - 1].gotsig = 1;
459		596
460	if (!gotsig)	597	if (!gotsig)
461	{	598	{
462	int old_errno = errno;	599	int old_errno = errno;
…		…
464	write (sigpipe [1], &signum, 1);	601	write (sigpipe [1], &signum, 1);
465	errno = old_errno;	602	errno = old_errno;
466	}	603	}
467	}	604	}
468		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
469	static void	626	static void
470	sigcb (EV_P_ struct ev_io *iow, int revents)	627	sigcb (EV_P_ struct ev_io *iow, int revents)
471	{	628	{
472	struct ev_watcher_list *w;
473	int signum;	629	int signum;
474		630
475	read (sigpipe [0], &revents, 1);	631	read (sigpipe [0], &revents, 1);
476	gotsig = 0;	632	gotsig = 0;
477		633
478	for (signum = signalmax; signum--; )	634	for (signum = signalmax; signum--; )
479	if (signals [signum].gotsig)	635	if (signals [signum].gotsig)
480	{	636	ev_feed_signal_event (EV_A_ signum + 1);
481	signals [signum].gotsig = 0;	637	}
482		638
483	for (w = signals [signum].head; w; w = w->next)	639	inline void
484	event (EV_A_ (W)w, EV_SIGNAL);	640	fd_intern (int fd)
485	}	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
486	}	649	}
487		650
488	static void	651	static void
489	siginit (EV_P)	652	siginit (EV_P)
490	{	653	{
491	#ifndef WIN32	654	fd_intern (sigpipe [0]);
492	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	655	fd_intern (sigpipe [1]);
493	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
494
495	/* rather than sort out wether we really need nb, set it */
496	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
497	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
498	#endif
499		656
500	ev_io_set (&sigev, sigpipe [0], EV_READ);	657	ev_io_set (&sigev, sigpipe [0], EV_READ);
501	ev_io_start (EV_A_ &sigev);	658	ev_io_start (EV_A_ &sigev);
502	ev_unref (EV_A); /* child watcher should not keep loop alive */	659	ev_unref (EV_A); /* child watcher should not keep loop alive */
503	}	660	}
504		661
505	/*****************************************************************************/	662	/*****************************************************************************/
506		663
507	#ifndef WIN32
508
509	static struct ev_child *childs [PID_HASHSIZE];	664	static struct ev_child *childs [PID_HASHSIZE];
		665
		666	#ifndef _WIN32
		667
510	static struct ev_signal childev;	668	static struct ev_signal childev;
511		669
512	#ifndef WCONTINUED	670	#ifndef WCONTINUED
513	# define WCONTINUED 0	671	# define WCONTINUED 0
514	#endif	672	#endif
…		…
522	if (w->pid == pid \|\| !w->pid)	680	if (w->pid == pid \|\| !w->pid)
523	{	681	{
524	ev_priority (w) = ev_priority (sw); /* need to do it now */	682	ev_priority (w) = ev_priority (sw); /* need to do it now */
525	w->rpid = pid;	683	w->rpid = pid;
526	w->rstatus = status;	684	w->rstatus = status;
527	event (EV_A_ (W)w, EV_CHILD);	685	ev_feed_event (EV_A_ (W)w, EV_CHILD);
528	}	686	}
529	}	687	}
530		688
531	static void	689	static void
532	childcb (EV_P_ struct ev_signal *sw, int revents)	690	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
534	int pid, status;	692	int pid, status;
535		693
536	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	694	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
537	{	695	{
538	/* 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 */
539	event (EV_A_ (W)sw, EV_SIGNAL);	697	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
540		698
541	child_reap (EV_A_ sw, pid, pid, status);	699	child_reap (EV_A_ sw, pid, pid, status);
542	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 */
543	}	701	}
544	}	702	}
…		…
574		732
575	/* 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 */
576	static int	734	static int
577	enable_secure (void)	735	enable_secure (void)
578	{	736	{
579	#ifdef WIN32	737	#ifdef _WIN32
580	return 0;	738	return 0;
581	#else	739	#else
582	return getuid () != geteuid ()	740	return getuid () != geteuid ()
583	\|\| getgid () != getegid ();	741	\|\| getgid () != getegid ();
584	#endif	742	#endif
…		…
601	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	759	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
602	have_monotonic = 1;	760	have_monotonic = 1;
603	}	761	}
604	#endif	762	#endif
605		763
606	rt_now = ev_time ();	764	ev_rt_now = ev_time ();
607	mn_now = get_clock ();	765	mn_now = get_clock ();
608	now_floor = mn_now;	766	now_floor = mn_now;
609	rtmn_diff = rt_now - mn_now;	767	rtmn_diff = ev_rt_now - mn_now;
610		768
611	if (methods == EVMETHOD_AUTO)	769	if (methods == EVMETHOD_AUTO)
612	if (!enable_secure () && getenv ("LIBEV_METHODS"))	770	if (!enable_secure () && getenv ("LIBEV_METHODS"))
613	methods = atoi (getenv ("LIBEV_METHODS"));	771	methods = atoi (getenv ("LIBEV_METHODS"));
614	else	772	else
615	methods = EVMETHOD_ANY;	773	methods = EVMETHOD_ANY;
616		774
617	method = 0;	775	method = 0;
618	#if EV_USE_WIN32
619	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
620	#endif
621	#if EV_USE_KQUEUE	776	#if EV_USE_KQUEUE
622	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	777	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
623	#endif	778	#endif
624	#if EV_USE_EPOLL	779	#if EV_USE_EPOLL
625	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	780	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
…		…
628	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	783	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
629	#endif	784	#endif
630	#if EV_USE_SELECT	785	#if EV_USE_SELECT
631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	786	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
632	#endif	787	#endif
		788
		789	ev_init (&sigev, sigcb);
		790	ev_set_priority (&sigev, EV_MAXPRI);
633	}	791	}
634	}	792	}
635		793
636	void	794	void
637	loop_destroy (EV_P)	795	loop_destroy (EV_P)
638	{	796	{
639	#if EV_USE_WIN32	797	int i;
640	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	798
641	#endif
642	#if EV_USE_KQUEUE	799	#if EV_USE_KQUEUE
643	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	800	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
644	#endif	801	#endif
645	#if EV_USE_EPOLL	802	#if EV_USE_EPOLL
646	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	803	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
650	#endif	807	#endif
651	#if EV_USE_SELECT	808	#if EV_USE_SELECT
652	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	809	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
653	#endif	810	#endif
654		811
		812	for (i = NUMPRI; i--; )
		813	array_free (pending, [i]);
		814
		815	/* have to use the microsoft-never-gets-it-right macro */
		816	array_free (fdchange, EMPTY);
		817	array_free (timer, EMPTY);
		818	#if EV_PERIODICS
		819	array_free (periodic, EMPTY);
		820	#endif
		821	array_free (idle, EMPTY);
		822	array_free (prepare, EMPTY);
		823	array_free (check, EMPTY);
		824
655	method = 0;	825	method = 0;
656	/TODO/
657	}	826	}
658		827
659	void	828	static void
660	loop_fork (EV_P)	829	loop_fork (EV_P)
661	{	830	{
662	/TODO/
663	#if EV_USE_EPOLL	831	#if EV_USE_EPOLL
664	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	832	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
665	#endif	833	#endif
666	#if EV_USE_KQUEUE	834	#if EV_USE_KQUEUE
667	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	835	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
668	#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;
669	}	854	}
670		855
671	#if EV_MULTIPLICITY	856	#if EV_MULTIPLICITY
672	struct ev_loop *	857	struct ev_loop *
673	ev_loop_new (int methods)	858	ev_loop_new (int methods)
674	{	859	{
675	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));
676		863
677	loop_init (EV_A_ methods);	864	loop_init (EV_A_ methods);
678		865
679	if (ev_method (EV_A))	866	if (ev_method (EV_A))
680	return loop;	867	return loop;
…		…
684		871
685	void	872	void
686	ev_loop_destroy (EV_P)	873	ev_loop_destroy (EV_P)
687	{	874	{
688	loop_destroy (EV_A);	875	loop_destroy (EV_A);
689	free (loop);	876	ev_free (loop);
690	}	877	}
691		878
692	void	879	void
693	ev_loop_fork (EV_P)	880	ev_loop_fork (EV_P)
694	{	881	{
695	loop_fork (EV_A);	882	postfork = 1;
696	}	883	}
697		884
698	#endif	885	#endif
699		886
700	#if EV_MULTIPLICITY	887	#if EV_MULTIPLICITY
701	struct ev_loop default_loop_struct;
702	static struct ev_loop *default_loop;
703
704	struct ev_loop *	888	struct ev_loop *
705	#else	889	#else
706	static int default_loop;
707
708	int	890	int
709	#endif	891	#endif
710	ev_default_loop (int methods)	892	ev_default_loop (int methods)
711	{	893	{
712	if (sigpipe [0] == sigpipe [1])	894	if (sigpipe [0] == sigpipe [1])
…		…
723		905
724	loop_init (EV_A_ methods);	906	loop_init (EV_A_ methods);
725		907
726	if (ev_method (EV_A))	908	if (ev_method (EV_A))
727	{	909	{
728	ev_watcher_init (&sigev, sigcb);
729	ev_set_priority (&sigev, EV_MAXPRI);
730	siginit (EV_A);	910	siginit (EV_A);
731		911
732	#ifndef WIN32	912	#ifndef _WIN32
733	ev_signal_init (&childev, childcb, SIGCHLD);	913	ev_signal_init (&childev, childcb, SIGCHLD);
734	ev_set_priority (&childev, EV_MAXPRI);	914	ev_set_priority (&childev, EV_MAXPRI);
735	ev_signal_start (EV_A_ &childev);	915	ev_signal_start (EV_A_ &childev);
736	ev_unref (EV_A); /* child watcher should not keep loop alive */	916	ev_unref (EV_A); /* child watcher should not keep loop alive */
737	#endif	917	#endif
…		…
748	{	928	{
749	#if EV_MULTIPLICITY	929	#if EV_MULTIPLICITY
750	struct ev_loop *loop = default_loop;	930	struct ev_loop *loop = default_loop;
751	#endif	931	#endif
752		932
		933	#ifndef _WIN32
753	ev_ref (EV_A); /* child watcher */	934	ev_ref (EV_A); /* child watcher */
754	ev_signal_stop (EV_A_ &childev);	935	ev_signal_stop (EV_A_ &childev);
		936	#endif
755		937
756	ev_ref (EV_A); /* signal watcher */	938	ev_ref (EV_A); /* signal watcher */
757	ev_io_stop (EV_A_ &sigev);	939	ev_io_stop (EV_A_ &sigev);
758		940
759	close (sigpipe [0]); sigpipe [0] = 0;	941	close (sigpipe [0]); sigpipe [0] = 0;
…		…
767	{	949	{
768	#if EV_MULTIPLICITY	950	#if EV_MULTIPLICITY
769	struct ev_loop *loop = default_loop;	951	struct ev_loop *loop = default_loop;
770	#endif	952	#endif
771		953
772	loop_fork (EV_A);	954	if (method)
773		955	postfork = 1;
774	ev_io_stop (EV_A_ &sigev);
775	close (sigpipe [0]);
776	close (sigpipe [1]);
777	pipe (sigpipe);
778
779	ev_ref (EV_A); /* signal watcher */
780	siginit (EV_A);
781	}	956	}
782		957
783	/*****************************************************************************/	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	}
784		971
785	static void	972	static void
786	call_pending (EV_P)	973	call_pending (EV_P)
787	{	974	{
788	int pri;	975	int pri;
…		…
793	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	980	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
794		981
795	if (p->w)	982	if (p->w)
796	{	983	{
797	p->w->pending = 0;	984	p->w->pending = 0;
798		985	EV_CB_INVOKE (p->w, p->events);
799	((void (*)(EV_P_ W, int))&p->w->cb) (EV_A_ p->w, p->events);
800	}	986	}
801	}	987	}
802	}	988	}
803		989
804	static void	990	static void
…		…
812		998
813	/* first reschedule or stop timer */	999	/* first reschedule or stop timer */
814	if (w->repeat)	1000	if (w->repeat)
815	{	1001	{
816	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
817	((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
818	downheap ((WT *)timers, timercnt, 0);	1008	downheap ((WT *)timers, timercnt, 0);
819	}	1009	}
820	else	1010	else
821	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1011	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
822		1012
823	event (EV_A_ (W)w, EV_TIMEOUT);	1013	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
824	}	1014	}
825	}	1015	}
826		1016
		1017	#if EV_PERIODICS
827	static void	1018	static void
828	periodics_reify (EV_P)	1019	periodics_reify (EV_P)
829	{	1020	{
830	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1021	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
831	{	1022	{
832	struct ev_periodic *w = periodics [0];	1023	struct ev_periodic *w = periodics [0];
833		1024
834	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1025	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
835		1026
836	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
837	if (w->interval)	1028	if (w->reschedule_cb)
838	{	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	{
839	((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;
840	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));
841	downheap ((WT *)periodics, periodiccnt, 0);	1039	downheap ((WT *)periodics, periodiccnt, 0);
842	}	1040	}
843	else	1041	else
844	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1042	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
845		1043
846	event (EV_A_ (W)w, EV_PERIODIC);	1044	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
847	}	1045	}
848	}	1046	}
849		1047
850	static void	1048	static void
851	periodics_reschedule (EV_P)	1049	periodics_reschedule (EV_P)
…		…
855	/* adjust periodics after time jump */	1053	/* adjust periodics after time jump */
856	for (i = 0; i < periodiccnt; ++i)	1054	for (i = 0; i < periodiccnt; ++i)
857	{	1055	{
858	struct ev_periodic *w = periodics [i];	1056	struct ev_periodic *w = periodics [i];
859		1057
		1058	if (w->reschedule_cb)
		1059	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
860	if (w->interval)	1060	else if (w->interval)
861	{
862	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;
863
864	if (fabs (diff) >= 1e-4)
865	{
866	ev_periodic_stop (EV_A_ w);
867	ev_periodic_start (EV_A_ w);
868
869	i = 0; /* restart loop, inefficient, but time jumps should be rare */
870	}
871	}
872	}	1062	}
		1063
		1064	/* now rebuild the heap */
		1065	for (i = periodiccnt >> 1; i--; )
		1066	downheap ((WT *)periodics, periodiccnt, i);
873	}	1067	}
		1068	#endif
874		1069
875	inline int	1070	inline int
876	time_update_monotonic (EV_P)	1071	time_update_monotonic (EV_P)
877	{	1072	{
878	mn_now = get_clock ();	1073	mn_now = get_clock ();
879		1074
880	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1075	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
881	{	1076	{
882	rt_now = rtmn_diff + mn_now;	1077	ev_rt_now = rtmn_diff + mn_now;
883	return 0;	1078	return 0;
884	}	1079	}
885	else	1080	else
886	{	1081	{
887	now_floor = mn_now;	1082	now_floor = mn_now;
888	rt_now = ev_time ();	1083	ev_rt_now = ev_time ();
889	return 1;	1084	return 1;
890	}	1085	}
891	}	1086	}
892		1087
893	static void	1088	static void
…		…
902	{	1097	{
903	ev_tstamp odiff = rtmn_diff;	1098	ev_tstamp odiff = rtmn_diff;
904		1099
905	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 */
906	{	1101	{
907	rtmn_diff = rt_now - mn_now;	1102	rtmn_diff = ev_rt_now - mn_now;
908		1103
909	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1104	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
910	return; /* all is well */	1105	return; /* all is well */
911		1106
912	rt_now = ev_time ();	1107	ev_rt_now = ev_time ();
913	mn_now = get_clock ();	1108	mn_now = get_clock ();
914	now_floor = mn_now;	1109	now_floor = mn_now;
915	}	1110	}
916		1111
		1112	# if EV_PERIODICS
917	periodics_reschedule (EV_A);	1113	periodics_reschedule (EV_A);
		1114	# endif
918	/* no timer adjustment, as the monotonic clock doesn't jump */	1115	/* no timer adjustment, as the monotonic clock doesn't jump */
919	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1116	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
920	}	1117	}
921	}	1118	}
922	else	1119	else
923	#endif	1120	#endif
924	{	1121	{
925	rt_now = ev_time ();	1122	ev_rt_now = ev_time ();
926		1123
927	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))
928	{	1125	{
		1126	#if EV_PERIODICS
929	periodics_reschedule (EV_A);	1127	periodics_reschedule (EV_A);
		1128	#endif
930		1129
931	/* 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 */
932	for (i = 0; i < timercnt; ++i)	1131	for (i = 0; i < timercnt; ++i)
933	((WT)timers [i])->at += rt_now - mn_now;	1132	((WT)timers [i])->at += ev_rt_now - mn_now;
934	}	1133	}
935		1134
936	mn_now = rt_now;	1135	mn_now = ev_rt_now;
937	}	1136	}
938	}	1137	}
939		1138
940	void	1139	void
941	ev_ref (EV_P)	1140	ev_ref (EV_P)
…		…
964	{	1163	{
965	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1164	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
966	call_pending (EV_A);	1165	call_pending (EV_A);
967	}	1166	}
968		1167
		1168	/* we might have forked, so reify kernel state if necessary */
		1169	if (expect_false (postfork))
		1170	loop_fork (EV_A);
		1171
969	/* update fd-related kernel structures */	1172	/* update fd-related kernel structures */
970	fd_reify (EV_A);	1173	fd_reify (EV_A);
971		1174
972	/* calculate blocking time */	1175	/* calculate blocking time */
973		1176
974	/* 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
975	always have timers, we just calculate it always */	1178	always have timers, we just calculate it always */
976	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
977	if (expect_true (have_monotonic))	1180	if (expect_true (have_monotonic))
978	time_update_monotonic (EV_A);	1181	time_update_monotonic (EV_A);
979	else	1182	else
980	#endif	1183	#endif
981	{	1184	{
982	rt_now = ev_time ();	1185	ev_rt_now = ev_time ();
983	mn_now = rt_now;	1186	mn_now = ev_rt_now;
984	}	1187	}
985		1188
986	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1189	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
987	block = 0.;	1190	block = 0.;
988	else	1191	else
…		…
993	{	1196	{
994	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1197	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
995	if (block > to) block = to;	1198	if (block > to) block = to;
996	}	1199	}
997		1200
		1201	#if EV_PERIODICS
998	if (periodiccnt)	1202	if (periodiccnt)
999	{	1203	{
1000	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1204	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1001	if (block > to) block = to;	1205	if (block > to) block = to;
1002	}	1206	}
		1207	#endif
1003		1208
1004	if (block < 0.) block = 0.;	1209	if (block < 0.) block = 0.;
1005	}	1210	}
1006		1211
1007	method_poll (EV_A_ block);	1212	method_poll (EV_A_ block);
1008		1213
1009	/* update rt_now, do magic */	1214	/* update ev_rt_now, do magic */
1010	time_update (EV_A);	1215	time_update (EV_A);
1011		1216
1012	/* queue pending timers and reschedule them */	1217	/* queue pending timers and reschedule them */
1013	timers_reify (EV_A); /* relative timers called last */	1218	timers_reify (EV_A); /* relative timers called last */
		1219	#if EV_PERIODICS
1014	periodics_reify (EV_A); /* absolute timers called first */	1220	periodics_reify (EV_A); /* absolute timers called first */
		1221	#endif
1015		1222
1016	/* queue idle watchers unless io or timers are pending */	1223	/* queue idle watchers unless io or timers are pending */
1017	if (!pendingcnt)	1224	if (idlecnt && !any_pending (EV_A))
1018	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1225	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1019		1226
1020	/* queue check watchers, to be executed first */	1227	/* queue check watchers, to be executed first */
1021	if (checkcnt)	1228	if (checkcnt)
1022	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1229	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1097	return;	1304	return;
1098		1305
1099	assert (("ev_io_start called with negative fd", fd >= 0));	1306	assert (("ev_io_start called with negative fd", fd >= 0));
1100		1307
1101	ev_start (EV_A_ (W)w, 1);	1308	ev_start (EV_A_ (W)w, 1);
1102	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1309	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1103	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1310	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1104		1311
1105	fd_change (EV_A_ fd);	1312	fd_change (EV_A_ fd);
1106	}	1313	}
1107		1314
…		…
1110	{	1317	{
1111	ev_clear_pending (EV_A_ (W)w);	1318	ev_clear_pending (EV_A_ (W)w);
1112	if (!ev_is_active (w))	1319	if (!ev_is_active (w))
1113	return;	1320	return;
1114		1321
		1322	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1323
1115	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1324	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1116	ev_stop (EV_A_ (W)w);	1325	ev_stop (EV_A_ (W)w);
1117		1326
1118	fd_change (EV_A_ w->fd);	1327	fd_change (EV_A_ w->fd);
1119	}	1328	}
…		…
1127	((WT)w)->at += mn_now;	1336	((WT)w)->at += mn_now;
1128		1337
1129	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.));
1130		1339
1131	ev_start (EV_A_ (W)w, ++timercnt);	1340	ev_start (EV_A_ (W)w, ++timercnt);
1132	array_needsize (timers, timermax, timercnt, );	1341	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1133	timers [timercnt - 1] = w;	1342	timers [timercnt - 1] = w;
1134	upheap ((WT *)timers, timercnt - 1);	1343	upheap ((WT *)timers, timercnt - 1);
1135		1344
1136	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1345	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1137	}	1346	}
…		…
1146	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1355	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1147		1356
1148	if (((W)w)->active < timercnt--)	1357	if (((W)w)->active < timercnt--)
1149	{	1358	{
1150	timers [((W)w)->active - 1] = timers [timercnt];	1359	timers [((W)w)->active - 1] = timers [timercnt];
1151	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1360	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1152	}	1361	}
1153		1362
1154	((WT)w)->at = w->repeat;	1363	((WT)w)->at -= mn_now;
1155		1364
1156	ev_stop (EV_A_ (W)w);	1365	ev_stop (EV_A_ (W)w);
1157	}	1366	}
1158		1367
1159	void	1368	void
…		…
1162	if (ev_is_active (w))	1371	if (ev_is_active (w))
1163	{	1372	{
1164	if (w->repeat)	1373	if (w->repeat)
1165	{	1374	{
1166	((WT)w)->at = mn_now + w->repeat;	1375	((WT)w)->at = mn_now + w->repeat;
1167	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1376	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1168	}	1377	}
1169	else	1378	else
1170	ev_timer_stop (EV_A_ w);	1379	ev_timer_stop (EV_A_ w);
1171	}	1380	}
1172	else if (w->repeat)	1381	else if (w->repeat)
1173	ev_timer_start (EV_A_ w);	1382	ev_timer_start (EV_A_ w);
1174	}	1383	}
1175		1384
		1385	#if EV_PERIODICS
1176	void	1386	void
1177	ev_periodic_start (EV_P_ struct ev_periodic *w)	1387	ev_periodic_start (EV_P_ struct ev_periodic *w)
1178	{	1388	{
1179	if (ev_is_active (w))	1389	if (ev_is_active (w))
1180	return;	1390	return;
1181		1391
		1392	if (w->reschedule_cb)
		1393	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1394	else if (w->interval)
		1395	{
1182	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.));
1183
1184	/* 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 */
1185	if (w->interval)
1186	((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	}
1187		1400
1188	ev_start (EV_A_ (W)w, ++periodiccnt);	1401	ev_start (EV_A_ (W)w, ++periodiccnt);
1189	array_needsize (periodics, periodicmax, periodiccnt, );	1402	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1190	periodics [periodiccnt - 1] = w;	1403	periodics [periodiccnt - 1] = w;
1191	upheap ((WT *)periodics, periodiccnt - 1);	1404	upheap ((WT *)periodics, periodiccnt - 1);
1192		1405
1193	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1406	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1194	}	1407	}
…		…
1203	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1416	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1204		1417
1205	if (((W)w)->active < periodiccnt--)	1418	if (((W)w)->active < periodiccnt--)
1206	{	1419	{
1207	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1420	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1208	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1421	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1209	}	1422	}
1210		1423
1211	ev_stop (EV_A_ (W)w);	1424	ev_stop (EV_A_ (W)w);
1212	}	1425	}
1213		1426
1214	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
1215	ev_idle_start (EV_P_ struct ev_idle *w)	1437	ev_idle_start (EV_P_ struct ev_idle *w)
1216	{	1438	{
1217	if (ev_is_active (w))	1439	if (ev_is_active (w))
1218	return;	1440	return;
1219		1441
1220	ev_start (EV_A_ (W)w, ++idlecnt);	1442	ev_start (EV_A_ (W)w, ++idlecnt);
1221	array_needsize (idles, idlemax, idlecnt, );	1443	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1222	idles [idlecnt - 1] = w;	1444	idles [idlecnt - 1] = w;
1223	}	1445	}
1224		1446
1225	void	1447	void
1226	ev_idle_stop (EV_P_ struct ev_idle *w)	1448	ev_idle_stop (EV_P_ struct ev_idle *w)
1227	{	1449	{
1228	ev_clear_pending (EV_A_ (W)w);	1450	ev_clear_pending (EV_A_ (W)w);
1229	if (ev_is_active (w))	1451	if (!ev_is_active (w))
1230	return;	1452	return;
1231		1453
1232	idles [((W)w)->active - 1] = idles [--idlecnt];	1454	idles [((W)w)->active - 1] = idles [--idlecnt];
1233	ev_stop (EV_A_ (W)w);	1455	ev_stop (EV_A_ (W)w);
1234	}	1456	}
…		…
1238	{	1460	{
1239	if (ev_is_active (w))	1461	if (ev_is_active (w))
1240	return;	1462	return;
1241		1463
1242	ev_start (EV_A_ (W)w, ++preparecnt);	1464	ev_start (EV_A_ (W)w, ++preparecnt);
1243	array_needsize (prepares, preparemax, preparecnt, );	1465	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
1244	prepares [preparecnt - 1] = w;	1466	prepares [preparecnt - 1] = w;
1245	}	1467	}
1246		1468
1247	void	1469	void
1248	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1470	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1249	{	1471	{
1250	ev_clear_pending (EV_A_ (W)w);	1472	ev_clear_pending (EV_A_ (W)w);
1251	if (ev_is_active (w))	1473	if (!ev_is_active (w))
1252	return;	1474	return;
1253		1475
1254	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1476	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1255	ev_stop (EV_A_ (W)w);	1477	ev_stop (EV_A_ (W)w);
1256	}	1478	}
…		…
1260	{	1482	{
1261	if (ev_is_active (w))	1483	if (ev_is_active (w))
1262	return;	1484	return;
1263		1485
1264	ev_start (EV_A_ (W)w, ++checkcnt);	1486	ev_start (EV_A_ (W)w, ++checkcnt);
1265	array_needsize (checks, checkmax, checkcnt, );	1487	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1266	checks [checkcnt - 1] = w;	1488	checks [checkcnt - 1] = w;
1267	}	1489	}
1268		1490
1269	void	1491	void
1270	ev_check_stop (EV_P_ struct ev_check *w)	1492	ev_check_stop (EV_P_ struct ev_check *w)
1271	{	1493	{
1272	ev_clear_pending (EV_A_ (W)w);	1494	ev_clear_pending (EV_A_ (W)w);
1273	if (ev_is_active (w))	1495	if (!ev_is_active (w))
1274	return;	1496	return;
1275		1497
1276	checks [((W)w)->active - 1] = checks [--checkcnt];	1498	checks [((W)w)->active - 1] = checks [--checkcnt];
1277	ev_stop (EV_A_ (W)w);	1499	ev_stop (EV_A_ (W)w);
1278	}	1500	}
…		…
1291	return;	1513	return;
1292		1514
1293	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));
1294		1516
1295	ev_start (EV_A_ (W)w, 1);	1517	ev_start (EV_A_ (W)w, 1);
1296	array_needsize (signals, signalmax, w->signum, signals_init);	1518	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1297	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1519	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1298		1520
1299	if (!((WL)w)->next)	1521	if (!((WL)w)->next)
1300	{	1522	{
		1523	#if _WIN32
		1524	signal (w->signum, sighandler);
		1525	#else
1301	struct sigaction sa;	1526	struct sigaction sa;
1302	sa.sa_handler = sighandler;	1527	sa.sa_handler = sighandler;
1303	sigfillset (&sa.sa_mask);	1528	sigfillset (&sa.sa_mask);
1304	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1529	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1305	sigaction (w->signum, &sa, 0);	1530	sigaction (w->signum, &sa, 0);
		1531	#endif
1306	}	1532	}
1307	}	1533	}
1308		1534
1309	void	1535	void
1310	ev_signal_stop (EV_P_ struct ev_signal *w)	1536	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1335		1561
1336	void	1562	void
1337	ev_child_stop (EV_P_ struct ev_child *w)	1563	ev_child_stop (EV_P_ struct ev_child *w)
1338	{	1564	{
1339	ev_clear_pending (EV_A_ (W)w);	1565	ev_clear_pending (EV_A_ (W)w);
1340	if (ev_is_active (w))	1566	if (!ev_is_active (w))
1341	return;	1567	return;
1342		1568
1343	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1569	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1344	ev_stop (EV_A_ (W)w);	1570	ev_stop (EV_A_ (W)w);
1345	}	1571	}
…		…
1360	void (cb)(int revents, void arg) = once->cb;	1586	void (cb)(int revents, void arg) = once->cb;
1361	void *arg = once->arg;	1587	void *arg = once->arg;
1362		1588
1363	ev_io_stop (EV_A_ &once->io);	1589	ev_io_stop (EV_A_ &once->io);
1364	ev_timer_stop (EV_A_ &once->to);	1590	ev_timer_stop (EV_A_ &once->to);
1365	free (once);	1591	ev_free (once);
1366		1592
1367	cb (revents, arg);	1593	cb (revents, arg);
1368	}	1594	}
1369		1595
1370	static void	1596	static void
…		…
1380	}	1606	}
1381		1607
1382	void	1608	void
1383	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)
1384	{	1610	{
1385	struct ev_once *once = malloc (sizeof (struct ev_once));	1611	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1386		1612
1387	if (!once)	1613	if (!once)
1388	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1614	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1389	else	1615	else
1390	{	1616	{
1391	once->cb = cb;	1617	once->cb = cb;
1392	once->arg = arg;	1618	once->arg = arg;
1393		1619
1394	ev_watcher_init (&once->io, once_cb_io);	1620	ev_init (&once->io, once_cb_io);
1395	if (fd >= 0)	1621	if (fd >= 0)
1396	{	1622	{
1397	ev_io_set (&once->io, fd, events);	1623	ev_io_set (&once->io, fd, events);
1398	ev_io_start (EV_A_ &once->io);	1624	ev_io_start (EV_A_ &once->io);
1399	}	1625	}
1400		1626
1401	ev_watcher_init (&once->to, once_cb_to);	1627	ev_init (&once->to, once_cb_to);
1402	if (timeout >= 0.)	1628	if (timeout >= 0.)
1403	{	1629	{
1404	ev_timer_set (&once->to, timeout, 0.);	1630	ev_timer_set (&once->to, timeout, 0.);
1405	ev_timer_start (EV_A_ &once->to);	1631	ev_timer_start (EV_A_ &once->to);
1406	}	1632	}
1407	}	1633	}
1408	}	1634	}
1409		1635
		1636	#ifdef __cplusplus
		1637	}
		1638	#endif
		1639

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Comparing libev/ev.c (file contents): Revision 1.64 by root, Sun Nov 4 23:14:11 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 1.64 by root, Sun Nov 4 23:14:11 2007 UTC vs.
Revision 1.105 by root, Mon Nov 12 01:02:09 2007 UTC