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

Comparing libev/ev.c (file contents):
Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC vs.
Revision 1.115 by root, Wed Nov 14 04:53:21 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
53	# endif	62	# endif
54		63
55	#endif	64	#endif
56		65
…		…
64	#include <assert.h>	73	#include <assert.h>
65	#include <errno.h>	74	#include <errno.h>
66	#include <sys/types.h>	75	#include <sys/types.h>
67	#include <time.h>	76	#include <time.h>
68		77
69	#ifndef PERL
70	# include <signal.h>	78	#include <signal.h>
71	#endif
72		79
73	#ifndef WIN32	80	#ifndef _WIN32
74	# include <unistd.h>	81	# include <unistd.h>
75	# include <sys/time.h>	82	# include <sys/time.h>
76	# 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
77	#endif	89	# endif
		90	#endif
		91
78	/**/	92	/**/
79		93
80	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
81	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
82	#endif	96	#endif
83		97
84	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
85	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
86	#endif	101	#endif
87		102
88	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
89	# 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
90	#endif	109	#endif
91		110
92	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
93	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
94	#endif	113	#endif
95		114
96	#ifndef EV_USE_KQUEUE	115	#ifndef EV_USE_KQUEUE
97	# define EV_USE_KQUEUE 0	116	# define EV_USE_KQUEUE 0
98	#endif	117	#endif
99		118
100	#ifndef EV_USE_WIN32
101	# ifdef WIN32
102	# define EV_USE_WIN32 0 /* it does not exist, use select */
103	# undef EV_USE_SELECT
104	# define EV_USE_SELECT 1
105	# else
106	# define EV_USE_WIN32 0
107	# endif
108	#endif
109
110	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
111	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
112	#endif	121	#endif
113		122
114	/**/	123	/**/
		124
		125	/* darwin simply cannot be helped */
		126	#ifdef __APPLE__
		127	# undef EV_USE_POLL
		128	# undef EV_USE_KQUEUE
		129	#endif
115		130
116	#ifndef CLOCK_MONOTONIC	131	#ifndef CLOCK_MONOTONIC
117	# undef EV_USE_MONOTONIC	132	# undef EV_USE_MONOTONIC
118	# define EV_USE_MONOTONIC 0	133	# define EV_USE_MONOTONIC 0
119	#endif	134	#endif
120		135
121	#ifndef CLOCK_REALTIME	136	#ifndef CLOCK_REALTIME
122	# undef EV_USE_REALTIME	137	# undef EV_USE_REALTIME
123	# define EV_USE_REALTIME 0	138	# define EV_USE_REALTIME 0
		139	#endif
		140
		141	#if EV_SELECT_IS_WINSOCKET
		142	# include <winsock.h>
124	#endif	143	#endif
125		144
126	/**/	145	/**/
127		146
128	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	147	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
129	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	148	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
130	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	149	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
131	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	150	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
132		151
		152	#ifdef EV_H
		153	# include EV_H
		154	#else
133	#include "ev.h"	155	# include "ev.h"
		156	#endif
134		157
135	#if __GNUC__ >= 3	158	#if __GNUC__ >= 3
136	# define expect(expr,value) __builtin_expect ((expr),(value))	159	# define expect(expr,value) __builtin_expect ((expr),(value))
137	# define inline inline	160	# define inline inline
138	#else	161	#else
…		…
144	#define expect_true(expr) expect ((expr) != 0, 1)	167	#define expect_true(expr) expect ((expr) != 0, 1)
145		168
146	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	169	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
147	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	170	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
148		171
		172	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		173	#define EMPTY2(a,b) /* used to suppress some warnings */
		174
149	typedef struct ev_watcher *W;	175	typedef struct ev_watcher *W;
150	typedef struct ev_watcher_list *WL;	176	typedef struct ev_watcher_list *WL;
151	typedef struct ev_watcher_time *WT;	177	typedef struct ev_watcher_time *WT;
152		178
153	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	179	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
154		180
155	#if WIN32	181	#ifdef _WIN32
156	/* note: the comment below could not be substantiated, but what would I care */	182	# include "ev_win32.c"
157	/* MSDN says this is required to handle SIGFPE */
158	volatile double SIGFPE_REQ = 0.0f;
159	#endif	183	#endif
160		184
161	/*****************************************************************************/	185	/*****************************************************************************/
162		186
163	static void (syserr_cb)(const char msg);	187	static void (syserr_cb)(const char msg);
…		…
211	typedef struct	235	typedef struct
212	{	236	{
213	WL head;	237	WL head;
214	unsigned char events;	238	unsigned char events;
215	unsigned char reify;	239	unsigned char reify;
		240	#if EV_SELECT_IS_WINSOCKET
		241	SOCKET handle;
		242	#endif
216	} ANFD;	243	} ANFD;
217		244
218	typedef struct	245	typedef struct
219	{	246	{
220	W w;	247	W w;
221	int events;	248	int events;
222	} ANPENDING;	249	} ANPENDING;
223		250
224	#if EV_MULTIPLICITY	251	#if EV_MULTIPLICITY
225		252
226	struct ev_loop	253	struct ev_loop
227	{	254	{
		255	ev_tstamp ev_rt_now;
		256	#define ev_rt_now ((loop)->ev_rt_now)
228	# define VAR(name,decl) decl;	257	#define VAR(name,decl) decl;
229	# include "ev_vars.h"	258	#include "ev_vars.h"
230	};
231	# undef VAR	259	#undef VAR
		260	};
232	# include "ev_wrap.h"	261	#include "ev_wrap.h"
		262
		263	struct ev_loop default_loop_struct;
		264	static struct ev_loop *default_loop;
233		265
234	#else	266	#else
235		267
		268	ev_tstamp ev_rt_now;
236	# define VAR(name,decl) static decl;	269	#define VAR(name,decl) static decl;
237	# include "ev_vars.h"	270	#include "ev_vars.h"
238	# undef VAR	271	#undef VAR
		272
		273	static int default_loop;
239		274
240	#endif	275	#endif
241		276
242	/*****************************************************************************/	277	/*****************************************************************************/
243		278
244	inline ev_tstamp	279	ev_tstamp
245	ev_time (void)	280	ev_time (void)
246	{	281	{
247	#if EV_USE_REALTIME	282	#if EV_USE_REALTIME
248	struct timespec ts;	283	struct timespec ts;
249	clock_gettime (CLOCK_REALTIME, &ts);	284	clock_gettime (CLOCK_REALTIME, &ts);
…		…
268	#endif	303	#endif
269		304
270	return ev_time ();	305	return ev_time ();
271	}	306	}
272		307
		308	#if EV_MULTIPLICITY
273	ev_tstamp	309	ev_tstamp
274	ev_now (EV_P)	310	ev_now (EV_P)
275	{	311	{
276	return rt_now;	312	return ev_rt_now;
277	}	313	}
		314	#endif
278		315
279	#define array_roundsize(base,n) ((n) \| 4 & ~3)	316	#define array_roundsize(type,n) (((n) \| 4) & ~3)
280		317
281	#define array_needsize(base,cur,cnt,init) \	318	#define array_needsize(type,base,cur,cnt,init) \
282	if (expect_false ((cnt) > cur)) \	319	if (expect_false ((cnt) > cur)) \
283	{ \	320	{ \
284	int newcnt = cur; \	321	int newcnt = cur; \
285	do \	322	do \
286	{ \	323	{ \
287	newcnt = array_roundsize (base, newcnt << 1); \	324	newcnt = array_roundsize (type, newcnt << 1); \
288	} \	325	} \
289	while ((cnt) > newcnt); \	326	while ((cnt) > newcnt); \
290	\	327	\
291	base = ev_realloc (base, sizeof (base) (newcnt)); \	328	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
292	init (base + cur, newcnt - cur); \	329	init (base + cur, newcnt - cur); \
293	cur = newcnt; \	330	cur = newcnt; \
294	}	331	}
295		332
296	#define array_slim(stem) \	333	#define array_slim(type,stem) \
297	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	334	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
298	{ \	335	{ \
299	stem ## max = array_roundsize (stem ## cnt >> 1); \	336	stem ## max = array_roundsize (stem ## cnt >> 1); \
300	base = ev_realloc (base, sizeof (base) (stem ## max)); \	337	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
301	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	338	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
302	}	339	}
303
304	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
305	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
306	#define array_free_microshit(stem) \
307	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
308		340
309	#define array_free(stem, idx) \	341	#define array_free(stem, idx) \
310	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	342	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
311		343
312	/*****************************************************************************/	344	/*****************************************************************************/
…		…
322		354
323	++base;	355	++base;
324	}	356	}
325	}	357	}
326		358
327	static void	359	void
328	event (EV_P_ W w, int events)	360	ev_feed_event (EV_P_ void *w, int revents)
329	{	361	{
		362	W w_ = (W)w;
		363
330	if (w->pending)	364	if (w_->pending)
331	{	365	{
332	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
333	return;	367	return;
334	}	368	}
335		369
336	w->pending = ++pendingcnt [ABSPRI (w)];	370	w_->pending = ++pendingcnt [ABSPRI (w_)];
337	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));	371	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
338	pendings [ABSPRI (w)][w->pending - 1].w = w;	372	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
339	pendings [ABSPRI (w)][w->pending - 1].events = events;	373	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
340	}	374	}
341		375
342	static void	376	static void
343	queue_events (EV_P_ W *events, int eventcnt, int type)	377	queue_events (EV_P_ W *events, int eventcnt, int type)
344	{	378	{
345	int i;	379	int i;
346		380
347	for (i = 0; i < eventcnt; ++i)	381	for (i = 0; i < eventcnt; ++i)
348	event (EV_A_ events [i], type);	382	ev_feed_event (EV_A_ events [i], type);
349	}	383	}
350		384
351	static void	385	inline void
352	fd_event (EV_P_ int fd, int events)	386	fd_event (EV_P_ int fd, int revents)
353	{	387	{
354	ANFD *anfd = anfds + fd;	388	ANFD *anfd = anfds + fd;
355	struct ev_io *w;	389	struct ev_io *w;
356		390
357	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	391	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
358	{	392	{
359	int ev = w->events & events;	393	int ev = w->events & revents;
360		394
361	if (ev)	395	if (ev)
362	event (EV_A_ (W)w, ev);	396	ev_feed_event (EV_A_ (W)w, ev);
363	}	397	}
		398	}
		399
		400	void
		401	ev_feed_fd_event (EV_P_ int fd, int revents)
		402	{
		403	fd_event (EV_A_ fd, revents);
364	}	404	}
365		405
366	/*****************************************************************************/	406	/*****************************************************************************/
367		407
368	static void	408	static void
…		…
379	int events = 0;	419	int events = 0;
380		420
381	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	421	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
382	events \|= w->events;	422	events \|= w->events;
383		423
		424	#if EV_SELECT_IS_WINSOCKET
		425	if (events)
		426	{
		427	unsigned long argp;
		428	anfd->handle = _get_osfhandle (fd);
		429	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		430	}
		431	#endif
		432
384	anfd->reify = 0;	433	anfd->reify = 0;
385		434
386	method_modify (EV_A_ fd, anfd->events, events);	435	method_modify (EV_A_ fd, anfd->events, events);
387	anfd->events = events;	436	anfd->events = events;
388	}	437	}
…		…
397	return;	446	return;
398		447
399	anfds [fd].reify = 1;	448	anfds [fd].reify = 1;
400		449
401	++fdchangecnt;	450	++fdchangecnt;
402	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));	451	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
403	fdchanges [fdchangecnt - 1] = fd;	452	fdchanges [fdchangecnt - 1] = fd;
404	}	453	}
405		454
406	static void	455	static void
407	fd_kill (EV_P_ int fd)	456	fd_kill (EV_P_ int fd)
…		…
409	struct ev_io *w;	458	struct ev_io *w;
410		459
411	while ((w = (struct ev_io *)anfds [fd].head))	460	while ((w = (struct ev_io *)anfds [fd].head))
412	{	461	{
413	ev_io_stop (EV_A_ w);	462	ev_io_stop (EV_A_ w);
414	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	463	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
415	}	464	}
416	}	465	}
417		466
418	static int	467	static int
419	fd_valid (int fd)	468	fd_valid (int fd)
420	{	469	{
421	#ifdef WIN32	470	#ifdef _WIN32
422	return !!win32_get_osfhandle (fd);	471	return _get_osfhandle (fd) != -1;
423	#else	472	#else
424	return fcntl (fd, F_GETFD) != -1;	473	return fcntl (fd, F_GETFD) != -1;
425	#endif	474	#endif
426	}	475	}
427		476
…		…
507		556
508	heap [k] = w;	557	heap [k] = w;
509	((W)heap [k])->active = k + 1;	558	((W)heap [k])->active = k + 1;
510	}	559	}
511		560
		561	inline void
		562	adjustheap (WT *heap, int N, int k)
		563	{
		564	upheap (heap, k);
		565	downheap (heap, N, k);
		566	}
		567
512	/*****************************************************************************/	568	/*****************************************************************************/
513		569
514	typedef struct	570	typedef struct
515	{	571	{
516	WL head;	572	WL head;
…		…
537	}	593	}
538		594
539	static void	595	static void
540	sighandler (int signum)	596	sighandler (int signum)
541	{	597	{
542	#if WIN32	598	#if _WIN32
543	signal (signum, sighandler);	599	signal (signum, sighandler);
544	#endif	600	#endif
545		601
546	signals [signum - 1].gotsig = 1;	602	signals [signum - 1].gotsig = 1;
547		603
…		…
552	write (sigpipe [1], &signum, 1);	608	write (sigpipe [1], &signum, 1);
553	errno = old_errno;	609	errno = old_errno;
554	}	610	}
555	}	611	}
556		612
		613	void
		614	ev_feed_signal_event (EV_P_ int signum)
		615	{
		616	WL w;
		617
		618	#if EV_MULTIPLICITY
		619	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		620	#endif
		621
		622	--signum;
		623
		624	if (signum < 0 \|\| signum >= signalmax)
		625	return;
		626
		627	signals [signum].gotsig = 0;
		628
		629	for (w = signals [signum].head; w; w = w->next)
		630	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		631	}
		632
557	static void	633	static void
558	sigcb (EV_P_ struct ev_io *iow, int revents)	634	sigcb (EV_P_ struct ev_io *iow, int revents)
559	{	635	{
560	WL w;
561	int signum;	636	int signum;
562		637
563	read (sigpipe [0], &revents, 1);	638	read (sigpipe [0], &revents, 1);
564	gotsig = 0;	639	gotsig = 0;
565		640
566	for (signum = signalmax; signum--; )	641	for (signum = signalmax; signum--; )
567	if (signals [signum].gotsig)	642	if (signals [signum].gotsig)
568	{	643	ev_feed_signal_event (EV_A_ signum + 1);
569	signals [signum].gotsig = 0;	644	}
570		645
571	for (w = signals [signum].head; w; w = w->next)	646	inline void
572	event (EV_A_ (W)w, EV_SIGNAL);	647	fd_intern (int fd)
573	}	648	{
		649	#ifdef _WIN32
		650	int arg = 1;
		651	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		652	#else
		653	fcntl (fd, F_SETFD, FD_CLOEXEC);
		654	fcntl (fd, F_SETFL, O_NONBLOCK);
		655	#endif
574	}	656	}
575		657
576	static void	658	static void
577	siginit (EV_P)	659	siginit (EV_P)
578	{	660	{
579	#ifndef WIN32	661	fd_intern (sigpipe [0]);
580	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	662	fd_intern (sigpipe [1]);
581	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
582
583	/* rather than sort out wether we really need nb, set it */
584	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
585	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
586	#endif
587		663
588	ev_io_set (&sigev, sigpipe [0], EV_READ);	664	ev_io_set (&sigev, sigpipe [0], EV_READ);
589	ev_io_start (EV_A_ &sigev);	665	ev_io_start (EV_A_ &sigev);
590	ev_unref (EV_A); /* child watcher should not keep loop alive */	666	ev_unref (EV_A); /* child watcher should not keep loop alive */
591	}	667	}
592		668
593	/*****************************************************************************/	669	/*****************************************************************************/
594		670
595	static struct ev_child *childs [PID_HASHSIZE];	671	static struct ev_child *childs [PID_HASHSIZE];
596		672
597	#ifndef WIN32	673	#ifndef _WIN32
598		674
599	static struct ev_signal childev;	675	static struct ev_signal childev;
600		676
601	#ifndef WCONTINUED	677	#ifndef WCONTINUED
602	# define WCONTINUED 0	678	# define WCONTINUED 0
…		…
611	if (w->pid == pid \|\| !w->pid)	687	if (w->pid == pid \|\| !w->pid)
612	{	688	{
613	ev_priority (w) = ev_priority (sw); /* need to do it now */	689	ev_priority (w) = ev_priority (sw); /* need to do it now */
614	w->rpid = pid;	690	w->rpid = pid;
615	w->rstatus = status;	691	w->rstatus = status;
616	event (EV_A_ (W)w, EV_CHILD);	692	ev_feed_event (EV_A_ (W)w, EV_CHILD);
617	}	693	}
618	}	694	}
619		695
620	static void	696	static void
621	childcb (EV_P_ struct ev_signal *sw, int revents)	697	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
623	int pid, status;	699	int pid, status;
624		700
625	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	701	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
626	{	702	{
627	/* make sure we are called again until all childs have been reaped */	703	/* make sure we are called again until all childs have been reaped */
628	event (EV_A_ (W)sw, EV_SIGNAL);	704	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
629		705
630	child_reap (EV_A_ sw, pid, pid, status);	706	child_reap (EV_A_ sw, pid, pid, status);
631	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	707	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
632	}	708	}
633	}	709	}
…		…
663		739
664	/* return true if we are running with elevated privileges and should ignore env variables */	740	/* return true if we are running with elevated privileges and should ignore env variables */
665	static int	741	static int
666	enable_secure (void)	742	enable_secure (void)
667	{	743	{
668	#ifdef WIN32	744	#ifdef _WIN32
669	return 0;	745	return 0;
670	#else	746	#else
671	return getuid () != geteuid ()	747	return getuid () != geteuid ()
672	\|\| getgid () != getegid ();	748	\|\| getgid () != getegid ();
673	#endif	749	#endif
674	}	750	}
675		751
676	int	752	unsigned int
677	ev_method (EV_P)	753	ev_method (EV_P)
678	{	754	{
679	return method;	755	return method;
680	}	756	}
681		757
682	static void	758	static void
683	loop_init (EV_P_ int methods)	759	loop_init (EV_P_ unsigned int flags)
684	{	760	{
685	if (!method)	761	if (!method)
686	{	762	{
687	#if EV_USE_MONOTONIC	763	#if EV_USE_MONOTONIC
688	{	764	{
…		…
690	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	766	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
691	have_monotonic = 1;	767	have_monotonic = 1;
692	}	768	}
693	#endif	769	#endif
694		770
695	rt_now = ev_time ();	771	ev_rt_now = ev_time ();
696	mn_now = get_clock ();	772	mn_now = get_clock ();
697	now_floor = mn_now;	773	now_floor = mn_now;
698	rtmn_diff = rt_now - mn_now;	774	rtmn_diff = ev_rt_now - mn_now;
699		775
700	if (methods == EVMETHOD_AUTO)	776	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
701	if (!enable_secure () && getenv ("LIBEV_METHODS"))
702	methods = atoi (getenv ("LIBEV_METHODS"));	777	flags = atoi (getenv ("LIBEV_FLAGS"));
703	else	778
704	methods = EVMETHOD_ANY;	779	if (!(flags & 0x0000ffff))
		780	flags \|= 0x0000ffff;
705		781
706	method = 0;	782	method = 0;
707	#if EV_USE_WIN32
708	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
709	#endif
710	#if EV_USE_KQUEUE	783	#if EV_USE_KQUEUE
711	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	784	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
712	#endif	785	#endif
713	#if EV_USE_EPOLL	786	#if EV_USE_EPOLL
714	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	787	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
715	#endif	788	#endif
716	#if EV_USE_POLL	789	#if EV_USE_POLL
717	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	790	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
718	#endif	791	#endif
719	#if EV_USE_SELECT	792	#if EV_USE_SELECT
720	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	793	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
721	#endif	794	#endif
722		795
723	ev_watcher_init (&sigev, sigcb);	796	ev_init (&sigev, sigcb);
724	ev_set_priority (&sigev, EV_MAXPRI);	797	ev_set_priority (&sigev, EV_MAXPRI);
725	}	798	}
726	}	799	}
727		800
728	void	801	void
729	loop_destroy (EV_P)	802	loop_destroy (EV_P)
730	{	803	{
731	int i;	804	int i;
732		805
733	#if EV_USE_WIN32
734	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
735	#endif
736	#if EV_USE_KQUEUE	806	#if EV_USE_KQUEUE
737	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	807	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
738	#endif	808	#endif
739	#if EV_USE_EPOLL	809	#if EV_USE_EPOLL
740	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	810	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
748		818
749	for (i = NUMPRI; i--; )	819	for (i = NUMPRI; i--; )
750	array_free (pending, [i]);	820	array_free (pending, [i]);
751		821
752	/* have to use the microsoft-never-gets-it-right macro */	822	/* have to use the microsoft-never-gets-it-right macro */
753	array_free_microshit (fdchange);	823	array_free (fdchange, EMPTY0);
754	array_free_microshit (timer);	824	array_free (timer, EMPTY0);
755	array_free_microshit (periodic);	825	#if EV_PERIODICS
756	array_free_microshit (idle);	826	array_free (periodic, EMPTY0);
757	array_free_microshit (prepare);	827	#endif
758	array_free_microshit (check);	828	array_free (idle, EMPTY0);
		829	array_free (prepare, EMPTY0);
		830	array_free (check, EMPTY0);
759		831
760	method = 0;	832	method = 0;
761	}	833	}
762		834
763	static void	835	static void
…		…
788	postfork = 0;	860	postfork = 0;
789	}	861	}
790		862
791	#if EV_MULTIPLICITY	863	#if EV_MULTIPLICITY
792	struct ev_loop *	864	struct ev_loop *
793	ev_loop_new (int methods)	865	ev_loop_new (unsigned int flags)
794	{	866	{
795	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	867	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
796		868
797	memset (loop, 0, sizeof (struct ev_loop));	869	memset (loop, 0, sizeof (struct ev_loop));
798		870
799	loop_init (EV_A_ methods);	871	loop_init (EV_A_ flags);
800		872
801	if (ev_method (EV_A))	873	if (ev_method (EV_A))
802	return loop;	874	return loop;
803		875
804	return 0;	876	return 0;
…		…
818	}	890	}
819		891
820	#endif	892	#endif
821		893
822	#if EV_MULTIPLICITY	894	#if EV_MULTIPLICITY
823	struct ev_loop default_loop_struct;
824	static struct ev_loop *default_loop;
825
826	struct ev_loop *	895	struct ev_loop *
827	#else	896	#else
828	static int default_loop;
829
830	int	897	int
831	#endif	898	#endif
832	ev_default_loop (int methods)	899	ev_default_loop (unsigned int flags)
833	{	900	{
834	if (sigpipe [0] == sigpipe [1])	901	if (sigpipe [0] == sigpipe [1])
835	if (pipe (sigpipe))	902	if (pipe (sigpipe))
836	return 0;	903	return 0;
837		904
…		…
841	struct ev_loop *loop = default_loop = &default_loop_struct;	908	struct ev_loop *loop = default_loop = &default_loop_struct;
842	#else	909	#else
843	default_loop = 1;	910	default_loop = 1;
844	#endif	911	#endif
845		912
846	loop_init (EV_A_ methods);	913	loop_init (EV_A_ flags);
847		914
848	if (ev_method (EV_A))	915	if (ev_method (EV_A))
849	{	916	{
850	siginit (EV_A);	917	siginit (EV_A);
851		918
852	#ifndef WIN32	919	#ifndef _WIN32
853	ev_signal_init (&childev, childcb, SIGCHLD);	920	ev_signal_init (&childev, childcb, SIGCHLD);
854	ev_set_priority (&childev, EV_MAXPRI);	921	ev_set_priority (&childev, EV_MAXPRI);
855	ev_signal_start (EV_A_ &childev);	922	ev_signal_start (EV_A_ &childev);
856	ev_unref (EV_A); /* child watcher should not keep loop alive */	923	ev_unref (EV_A); /* child watcher should not keep loop alive */
857	#endif	924	#endif
…		…
868	{	935	{
869	#if EV_MULTIPLICITY	936	#if EV_MULTIPLICITY
870	struct ev_loop *loop = default_loop;	937	struct ev_loop *loop = default_loop;
871	#endif	938	#endif
872		939
873	#ifndef WIN32	940	#ifndef _WIN32
874	ev_ref (EV_A); /* child watcher */	941	ev_ref (EV_A); /* child watcher */
875	ev_signal_stop (EV_A_ &childev);	942	ev_signal_stop (EV_A_ &childev);
876	#endif	943	#endif
877		944
878	ev_ref (EV_A); /* signal watcher */	945	ev_ref (EV_A); /* signal watcher */
…		…
894	if (method)	961	if (method)
895	postfork = 1;	962	postfork = 1;
896	}	963	}
897		964
898	/*****************************************************************************/	965	/*****************************************************************************/
		966
		967	static int
		968	any_pending (EV_P)
		969	{
		970	int pri;
		971
		972	for (pri = NUMPRI; pri--; )
		973	if (pendingcnt [pri])
		974	return 1;
		975
		976	return 0;
		977	}
899		978
900	static void	979	static void
901	call_pending (EV_P)	980	call_pending (EV_P)
902	{	981	{
903	int pri;	982	int pri;
…		…
908	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	987	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
909		988
910	if (p->w)	989	if (p->w)
911	{	990	{
912	p->w->pending = 0;	991	p->w->pending = 0;
913	p->w->cb (EV_A_ p->w, p->events);	992	EV_CB_INVOKE (p->w, p->events);
914	}	993	}
915	}	994	}
916	}	995	}
917		996
918	static void	997	static void
…		…
926		1005
927	/* first reschedule or stop timer */	1006	/* first reschedule or stop timer */
928	if (w->repeat)	1007	if (w->repeat)
929	{	1008	{
930	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1009	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1010
931	((WT)w)->at = mn_now + w->repeat;	1011	((WT)w)->at += w->repeat;
		1012	if (((WT)w)->at < mn_now)
		1013	((WT)w)->at = mn_now;
		1014
932	downheap ((WT *)timers, timercnt, 0);	1015	downheap ((WT *)timers, timercnt, 0);
933	}	1016	}
934	else	1017	else
935	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1018	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
936		1019
937	event (EV_A_ (W)w, EV_TIMEOUT);	1020	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
938	}	1021	}
939	}	1022	}
940		1023
		1024	#if EV_PERIODICS
941	static void	1025	static void
942	periodics_reify (EV_P)	1026	periodics_reify (EV_P)
943	{	1027	{
944	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1028	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
945	{	1029	{
946	struct ev_periodic *w = periodics [0];	1030	struct ev_periodic *w = periodics [0];
947		1031
948	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1032	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
949		1033
950	/* first reschedule or stop timer */	1034	/* first reschedule or stop timer */
951	if (w->interval)	1035	if (w->reschedule_cb)
952	{	1036	{
		1037	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1038	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1039	downheap ((WT *)periodics, periodiccnt, 0);
		1040	}
		1041	else if (w->interval)
		1042	{
953	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1043	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
954	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1044	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
955	downheap ((WT *)periodics, periodiccnt, 0);	1045	downheap ((WT *)periodics, periodiccnt, 0);
956	}	1046	}
957	else	1047	else
958	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1048	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
959		1049
960	event (EV_A_ (W)w, EV_PERIODIC);	1050	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
961	}	1051	}
962	}	1052	}
963		1053
964	static void	1054	static void
965	periodics_reschedule (EV_P)	1055	periodics_reschedule (EV_P)
…		…
969	/* adjust periodics after time jump */	1059	/* adjust periodics after time jump */
970	for (i = 0; i < periodiccnt; ++i)	1060	for (i = 0; i < periodiccnt; ++i)
971	{	1061	{
972	struct ev_periodic *w = periodics [i];	1062	struct ev_periodic *w = periodics [i];
973		1063
		1064	if (w->reschedule_cb)
		1065	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
974	if (w->interval)	1066	else if (w->interval)
975	{
976	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1067	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
977
978	if (fabs (diff) >= 1e-4)
979	{
980	ev_periodic_stop (EV_A_ w);
981	ev_periodic_start (EV_A_ w);
982
983	i = 0; /* restart loop, inefficient, but time jumps should be rare */
984	}
985	}
986	}	1068	}
		1069
		1070	/* now rebuild the heap */
		1071	for (i = periodiccnt >> 1; i--; )
		1072	downheap ((WT *)periodics, periodiccnt, i);
987	}	1073	}
		1074	#endif
988		1075
989	inline int	1076	inline int
990	time_update_monotonic (EV_P)	1077	time_update_monotonic (EV_P)
991	{	1078	{
992	mn_now = get_clock ();	1079	mn_now = get_clock ();
993		1080
994	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1081	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
995	{	1082	{
996	rt_now = rtmn_diff + mn_now;	1083	ev_rt_now = rtmn_diff + mn_now;
997	return 0;	1084	return 0;
998	}	1085	}
999	else	1086	else
1000	{	1087	{
1001	now_floor = mn_now;	1088	now_floor = mn_now;
1002	rt_now = ev_time ();	1089	ev_rt_now = ev_time ();
1003	return 1;	1090	return 1;
1004	}	1091	}
1005	}	1092	}
1006		1093
1007	static void	1094	static void
…		…
1016	{	1103	{
1017	ev_tstamp odiff = rtmn_diff;	1104	ev_tstamp odiff = rtmn_diff;
1018		1105
1019	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1106	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1020	{	1107	{
1021	rtmn_diff = rt_now - mn_now;	1108	rtmn_diff = ev_rt_now - mn_now;
1022		1109
1023	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1110	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1024	return; /* all is well */	1111	return; /* all is well */
1025		1112
1026	rt_now = ev_time ();	1113	ev_rt_now = ev_time ();
1027	mn_now = get_clock ();	1114	mn_now = get_clock ();
1028	now_floor = mn_now;	1115	now_floor = mn_now;
1029	}	1116	}
1030		1117
		1118	# if EV_PERIODICS
1031	periodics_reschedule (EV_A);	1119	periodics_reschedule (EV_A);
		1120	# endif
1032	/* no timer adjustment, as the monotonic clock doesn't jump */	1121	/* no timer adjustment, as the monotonic clock doesn't jump */
1033	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1122	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1034	}	1123	}
1035	}	1124	}
1036	else	1125	else
1037	#endif	1126	#endif
1038	{	1127	{
1039	rt_now = ev_time ();	1128	ev_rt_now = ev_time ();
1040		1129
1041	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1130	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1042	{	1131	{
		1132	#if EV_PERIODICS
1043	periodics_reschedule (EV_A);	1133	periodics_reschedule (EV_A);
		1134	#endif
1044		1135
1045	/* adjust timers. this is easy, as the offset is the same for all */	1136	/* adjust timers. this is easy, as the offset is the same for all */
1046	for (i = 0; i < timercnt; ++i)	1137	for (i = 0; i < timercnt; ++i)
1047	((WT)timers [i])->at += rt_now - mn_now;	1138	((WT)timers [i])->at += ev_rt_now - mn_now;
1048	}	1139	}
1049		1140
1050	mn_now = rt_now;	1141	mn_now = ev_rt_now;
1051	}	1142	}
1052	}	1143	}
1053		1144
1054	void	1145	void
1055	ev_ref (EV_P)	1146	ev_ref (EV_P)
…		…
1069	ev_loop (EV_P_ int flags)	1160	ev_loop (EV_P_ int flags)
1070	{	1161	{
1071	double block;	1162	double block;
1072	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1163	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1073		1164
1074	do	1165	while (activecnt)
1075	{	1166	{
1076	/* queue check watchers (and execute them) */	1167	/* queue check watchers (and execute them) */
1077	if (expect_false (preparecnt))	1168	if (expect_false (preparecnt))
1078	{	1169	{
1079	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1170	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1087	/* update fd-related kernel structures */	1178	/* update fd-related kernel structures */
1088	fd_reify (EV_A);	1179	fd_reify (EV_A);
1089		1180
1090	/* calculate blocking time */	1181	/* calculate blocking time */
1091		1182
1092	/* we only need this for !monotonic clockor timers, but as we basically	1183	/* we only need this for !monotonic clock or timers, but as we basically
1093	always have timers, we just calculate it always */	1184	always have timers, we just calculate it always */
1094	#if EV_USE_MONOTONIC	1185	#if EV_USE_MONOTONIC
1095	if (expect_true (have_monotonic))	1186	if (expect_true (have_monotonic))
1096	time_update_monotonic (EV_A);	1187	time_update_monotonic (EV_A);
1097	else	1188	else
1098	#endif	1189	#endif
1099	{	1190	{
1100	rt_now = ev_time ();	1191	ev_rt_now = ev_time ();
1101	mn_now = rt_now;	1192	mn_now = ev_rt_now;
1102	}	1193	}
1103		1194
1104	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1195	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1105	block = 0.;	1196	block = 0.;
1106	else	1197	else
…		…
1111	{	1202	{
1112	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1203	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1113	if (block > to) block = to;	1204	if (block > to) block = to;
1114	}	1205	}
1115		1206
		1207	#if EV_PERIODICS
1116	if (periodiccnt)	1208	if (periodiccnt)
1117	{	1209	{
1118	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1210	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1119	if (block > to) block = to;	1211	if (block > to) block = to;
1120	}	1212	}
		1213	#endif
1121		1214
1122	if (block < 0.) block = 0.;	1215	if (block < 0.) block = 0.;
1123	}	1216	}
1124		1217
1125	method_poll (EV_A_ block);	1218	method_poll (EV_A_ block);
1126		1219
1127	/* update rt_now, do magic */	1220	/* update ev_rt_now, do magic */
1128	time_update (EV_A);	1221	time_update (EV_A);
1129		1222
1130	/* queue pending timers and reschedule them */	1223	/* queue pending timers and reschedule them */
1131	timers_reify (EV_A); /* relative timers called last */	1224	timers_reify (EV_A); /* relative timers called last */
		1225	#if EV_PERIODICS
1132	periodics_reify (EV_A); /* absolute timers called first */	1226	periodics_reify (EV_A); /* absolute timers called first */
		1227	#endif
1133		1228
1134	/* queue idle watchers unless io or timers are pending */	1229	/* queue idle watchers unless io or timers are pending */
1135	if (!pendingcnt)	1230	if (idlecnt && !any_pending (EV_A))
1136	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1231	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1137		1232
1138	/* queue check watchers, to be executed first */	1233	/* queue check watchers, to be executed first */
1139	if (checkcnt)	1234	if (checkcnt)
1140	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1235	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1141		1236
1142	call_pending (EV_A);	1237	call_pending (EV_A);
		1238
		1239	if (loop_done)
		1240	break;
1143	}	1241	}
1144	while (activecnt && !loop_done);
1145		1242
1146	if (loop_done != 2)	1243	if (loop_done != 2)
1147	loop_done = 0;	1244	loop_done = 0;
1148	}	1245	}
1149		1246
…		…
1215	return;	1312	return;
1216		1313
1217	assert (("ev_io_start called with negative fd", fd >= 0));	1314	assert (("ev_io_start called with negative fd", fd >= 0));
1218		1315
1219	ev_start (EV_A_ (W)w, 1);	1316	ev_start (EV_A_ (W)w, 1);
1220	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1317	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1221	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1318	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1222		1319
1223	fd_change (EV_A_ fd);	1320	fd_change (EV_A_ fd);
1224	}	1321	}
1225		1322
…		…
1228	{	1325	{
1229	ev_clear_pending (EV_A_ (W)w);	1326	ev_clear_pending (EV_A_ (W)w);
1230	if (!ev_is_active (w))	1327	if (!ev_is_active (w))
1231	return;	1328	return;
1232		1329
		1330	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1331
1233	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1332	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1234	ev_stop (EV_A_ (W)w);	1333	ev_stop (EV_A_ (W)w);
1235		1334
1236	fd_change (EV_A_ w->fd);	1335	fd_change (EV_A_ w->fd);
1237	}	1336	}
…		…
1245	((WT)w)->at += mn_now;	1344	((WT)w)->at += mn_now;
1246		1345
1247	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1346	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1248		1347
1249	ev_start (EV_A_ (W)w, ++timercnt);	1348	ev_start (EV_A_ (W)w, ++timercnt);
1250	array_needsize (timers, timermax, timercnt, (void));	1349	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1251	timers [timercnt - 1] = w;	1350	timers [timercnt - 1] = w;
1252	upheap ((WT *)timers, timercnt - 1);	1351	upheap ((WT *)timers, timercnt - 1);
1253		1352
1254	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1353	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1255	}	1354	}
…		…
1264	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1363	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1265		1364
1266	if (((W)w)->active < timercnt--)	1365	if (((W)w)->active < timercnt--)
1267	{	1366	{
1268	timers [((W)w)->active - 1] = timers [timercnt];	1367	timers [((W)w)->active - 1] = timers [timercnt];
1269	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1368	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1270	}	1369	}
1271		1370
1272	((WT)w)->at = w->repeat;	1371	((WT)w)->at -= mn_now;
1273		1372
1274	ev_stop (EV_A_ (W)w);	1373	ev_stop (EV_A_ (W)w);
1275	}	1374	}
1276		1375
1277	void	1376	void
…		…
1280	if (ev_is_active (w))	1379	if (ev_is_active (w))
1281	{	1380	{
1282	if (w->repeat)	1381	if (w->repeat)
1283	{	1382	{
1284	((WT)w)->at = mn_now + w->repeat;	1383	((WT)w)->at = mn_now + w->repeat;
1285	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1384	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1286	}	1385	}
1287	else	1386	else
1288	ev_timer_stop (EV_A_ w);	1387	ev_timer_stop (EV_A_ w);
1289	}	1388	}
1290	else if (w->repeat)	1389	else if (w->repeat)
		1390	{
		1391	w->at = w->repeat;
1291	ev_timer_start (EV_A_ w);	1392	ev_timer_start (EV_A_ w);
		1393	}
1292	}	1394	}
1293		1395
		1396	#if EV_PERIODICS
1294	void	1397	void
1295	ev_periodic_start (EV_P_ struct ev_periodic *w)	1398	ev_periodic_start (EV_P_ struct ev_periodic *w)
1296	{	1399	{
1297	if (ev_is_active (w))	1400	if (ev_is_active (w))
1298	return;	1401	return;
1299		1402
		1403	if (w->reschedule_cb)
		1404	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1405	else if (w->interval)
		1406	{
1300	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1407	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1301
1302	/* this formula differs from the one in periodic_reify because we do not always round up */	1408	/* this formula differs from the one in periodic_reify because we do not always round up */
1303	if (w->interval)
1304	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1409	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1410	}
1305		1411
1306	ev_start (EV_A_ (W)w, ++periodiccnt);	1412	ev_start (EV_A_ (W)w, ++periodiccnt);
1307	array_needsize (periodics, periodicmax, periodiccnt, (void));	1413	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1308	periodics [periodiccnt - 1] = w;	1414	periodics [periodiccnt - 1] = w;
1309	upheap ((WT *)periodics, periodiccnt - 1);	1415	upheap ((WT *)periodics, periodiccnt - 1);
1310		1416
1311	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1417	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1312	}	1418	}
…		…
1321	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1427	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1322		1428
1323	if (((W)w)->active < periodiccnt--)	1429	if (((W)w)->active < periodiccnt--)
1324	{	1430	{
1325	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1431	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1326	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1432	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1327	}	1433	}
1328		1434
1329	ev_stop (EV_A_ (W)w);	1435	ev_stop (EV_A_ (W)w);
1330	}	1436	}
1331		1437
1332	void	1438	void
		1439	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1440	{
		1441	/* TODO: use adjustheap and recalculation */
		1442	ev_periodic_stop (EV_A_ w);
		1443	ev_periodic_start (EV_A_ w);
		1444	}
		1445	#endif
		1446
		1447	void
1333	ev_idle_start (EV_P_ struct ev_idle *w)	1448	ev_idle_start (EV_P_ struct ev_idle *w)
1334	{	1449	{
1335	if (ev_is_active (w))	1450	if (ev_is_active (w))
1336	return;	1451	return;
1337		1452
1338	ev_start (EV_A_ (W)w, ++idlecnt);	1453	ev_start (EV_A_ (W)w, ++idlecnt);
1339	array_needsize (idles, idlemax, idlecnt, (void));	1454	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1340	idles [idlecnt - 1] = w;	1455	idles [idlecnt - 1] = w;
1341	}	1456	}
1342		1457
1343	void	1458	void
1344	ev_idle_stop (EV_P_ struct ev_idle *w)	1459	ev_idle_stop (EV_P_ struct ev_idle *w)
1345	{	1460	{
1346	ev_clear_pending (EV_A_ (W)w);	1461	ev_clear_pending (EV_A_ (W)w);
1347	if (ev_is_active (w))	1462	if (!ev_is_active (w))
1348	return;	1463	return;
1349		1464
1350	idles [((W)w)->active - 1] = idles [--idlecnt];	1465	idles [((W)w)->active - 1] = idles [--idlecnt];
1351	ev_stop (EV_A_ (W)w);	1466	ev_stop (EV_A_ (W)w);
1352	}	1467	}
…		…
1356	{	1471	{
1357	if (ev_is_active (w))	1472	if (ev_is_active (w))
1358	return;	1473	return;
1359		1474
1360	ev_start (EV_A_ (W)w, ++preparecnt);	1475	ev_start (EV_A_ (W)w, ++preparecnt);
1361	array_needsize (prepares, preparemax, preparecnt, (void));	1476	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1362	prepares [preparecnt - 1] = w;	1477	prepares [preparecnt - 1] = w;
1363	}	1478	}
1364		1479
1365	void	1480	void
1366	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1481	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1367	{	1482	{
1368	ev_clear_pending (EV_A_ (W)w);	1483	ev_clear_pending (EV_A_ (W)w);
1369	if (ev_is_active (w))	1484	if (!ev_is_active (w))
1370	return;	1485	return;
1371		1486
1372	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1487	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1373	ev_stop (EV_A_ (W)w);	1488	ev_stop (EV_A_ (W)w);
1374	}	1489	}
…		…
1378	{	1493	{
1379	if (ev_is_active (w))	1494	if (ev_is_active (w))
1380	return;	1495	return;
1381		1496
1382	ev_start (EV_A_ (W)w, ++checkcnt);	1497	ev_start (EV_A_ (W)w, ++checkcnt);
1383	array_needsize (checks, checkmax, checkcnt, (void));	1498	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1384	checks [checkcnt - 1] = w;	1499	checks [checkcnt - 1] = w;
1385	}	1500	}
1386		1501
1387	void	1502	void
1388	ev_check_stop (EV_P_ struct ev_check *w)	1503	ev_check_stop (EV_P_ struct ev_check *w)
1389	{	1504	{
1390	ev_clear_pending (EV_A_ (W)w);	1505	ev_clear_pending (EV_A_ (W)w);
1391	if (ev_is_active (w))	1506	if (!ev_is_active (w))
1392	return;	1507	return;
1393		1508
1394	checks [((W)w)->active - 1] = checks [--checkcnt];	1509	checks [((W)w)->active - 1] = checks [--checkcnt];
1395	ev_stop (EV_A_ (W)w);	1510	ev_stop (EV_A_ (W)w);
1396	}	1511	}
…		…
1409	return;	1524	return;
1410		1525
1411	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1526	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1412		1527
1413	ev_start (EV_A_ (W)w, 1);	1528	ev_start (EV_A_ (W)w, 1);
1414	array_needsize (signals, signalmax, w->signum, signals_init);	1529	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1415	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1530	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1416		1531
1417	if (!((WL)w)->next)	1532	if (!((WL)w)->next)
1418	{	1533	{
1419	#if WIN32	1534	#if _WIN32
1420	signal (w->signum, sighandler);	1535	signal (w->signum, sighandler);
1421	#else	1536	#else
1422	struct sigaction sa;	1537	struct sigaction sa;
1423	sa.sa_handler = sighandler;	1538	sa.sa_handler = sighandler;
1424	sigfillset (&sa.sa_mask);	1539	sigfillset (&sa.sa_mask);
…		…
1457		1572
1458	void	1573	void
1459	ev_child_stop (EV_P_ struct ev_child *w)	1574	ev_child_stop (EV_P_ struct ev_child *w)
1460	{	1575	{
1461	ev_clear_pending (EV_A_ (W)w);	1576	ev_clear_pending (EV_A_ (W)w);
1462	if (ev_is_active (w))	1577	if (!ev_is_active (w))
1463	return;	1578	return;
1464		1579
1465	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1580	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1466	ev_stop (EV_A_ (W)w);	1581	ev_stop (EV_A_ (W)w);
1467	}	1582	}
…		…
1502	}	1617	}
1503		1618
1504	void	1619	void
1505	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1620	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1506	{	1621	{
1507	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1622	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1508		1623
1509	if (!once)	1624	if (!once)
1510	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1625	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1511	else	1626	else
1512	{	1627	{
1513	once->cb = cb;	1628	once->cb = cb;
1514	once->arg = arg;	1629	once->arg = arg;
1515		1630
1516	ev_watcher_init (&once->io, once_cb_io);	1631	ev_init (&once->io, once_cb_io);
1517	if (fd >= 0)	1632	if (fd >= 0)
1518	{	1633	{
1519	ev_io_set (&once->io, fd, events);	1634	ev_io_set (&once->io, fd, events);
1520	ev_io_start (EV_A_ &once->io);	1635	ev_io_start (EV_A_ &once->io);
1521	}	1636	}
1522		1637
1523	ev_watcher_init (&once->to, once_cb_to);	1638	ev_init (&once->to, once_cb_to);
1524	if (timeout >= 0.)	1639	if (timeout >= 0.)
1525	{	1640	{
1526	ev_timer_set (&once->to, timeout, 0.);	1641	ev_timer_set (&once->to, timeout, 0.);
1527	ev_timer_start (EV_A_ &once->to);	1642	ev_timer_start (EV_A_ &once->to);
1528	}	1643	}
1529	}	1644	}
1530	}	1645	}
1531		1646
		1647	#ifdef __cplusplus
		1648	}
		1649	#endif
		1650

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Comparing libev/ev.c (file contents): Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC vs. Revision 1.115 by root, Wed Nov 14 04:53:21 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC vs.
Revision 1.115 by root, Wed Nov 14 04:53:21 2007 UTC