[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 1.116 by root, Thu Nov 15 09:19:42 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	static struct ev_loop default_loop_struct;
		264	struct ev_loop *ev_default_loop_ptr;
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 ev_default_loop_ptr;
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 == ev_default_loop_ptr));
		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 *
		896	ev_default_loop_ (unsigned int flags)
827	#else	897	#else
828	static int default_loop;
829
830	int	898	int
		899	ev_default_loop (unsigned int flags)
831	#endif	900	#endif
832	ev_default_loop (int methods)
833	{	901	{
834	if (sigpipe [0] == sigpipe [1])	902	if (sigpipe [0] == sigpipe [1])
835	if (pipe (sigpipe))	903	if (pipe (sigpipe))
836	return 0;	904	return 0;
837		905
838	if (!default_loop)	906	if (!ev_default_loop_ptr)
839	{	907	{
840	#if EV_MULTIPLICITY	908	#if EV_MULTIPLICITY
841	struct ev_loop *loop = default_loop = &default_loop_struct;	909	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
842	#else	910	#else
843	default_loop = 1;	911	ev_default_default_loop_ptr = 1;
844	#endif	912	#endif
845		913
846	loop_init (EV_A_ methods);	914	loop_init (EV_A_ flags);
847		915
848	if (ev_method (EV_A))	916	if (ev_method (EV_A))
849	{	917	{
850	siginit (EV_A);	918	siginit (EV_A);
851		919
852	#ifndef WIN32	920	#ifndef _WIN32
853	ev_signal_init (&childev, childcb, SIGCHLD);	921	ev_signal_init (&childev, childcb, SIGCHLD);
854	ev_set_priority (&childev, EV_MAXPRI);	922	ev_set_priority (&childev, EV_MAXPRI);
855	ev_signal_start (EV_A_ &childev);	923	ev_signal_start (EV_A_ &childev);
856	ev_unref (EV_A); /* child watcher should not keep loop alive */	924	ev_unref (EV_A); /* child watcher should not keep loop alive */
857	#endif	925	#endif
858	}	926	}
859	else	927	else
860	default_loop = 0;	928	ev_default_loop_ptr = 0;
861	}	929	}
862		930
863	return default_loop;	931	return ev_default_loop_ptr;
864	}	932	}
865		933
866	void	934	void
867	ev_default_destroy (void)	935	ev_default_destroy (void)
868	{	936	{
869	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
870	struct ev_loop *loop = default_loop;	938	struct ev_loop *loop = ev_default_loop_ptr;
871	#endif	939	#endif
872		940
873	#ifndef WIN32	941	#ifndef _WIN32
874	ev_ref (EV_A); /* child watcher */	942	ev_ref (EV_A); /* child watcher */
875	ev_signal_stop (EV_A_ &childev);	943	ev_signal_stop (EV_A_ &childev);
876	#endif	944	#endif
877		945
878	ev_ref (EV_A); /* signal watcher */	946	ev_ref (EV_A); /* signal watcher */
…		…
886		954
887	void	955	void
888	ev_default_fork (void)	956	ev_default_fork (void)
889	{	957	{
890	#if EV_MULTIPLICITY	958	#if EV_MULTIPLICITY
891	struct ev_loop *loop = default_loop;	959	struct ev_loop *loop = ev_default_loop_ptr;
892	#endif	960	#endif
893		961
894	if (method)	962	if (method)
895	postfork = 1;	963	postfork = 1;
896	}	964	}
897		965
898	/*****************************************************************************/	966	/*****************************************************************************/
		967
		968	static int
		969	any_pending (EV_P)
		970	{
		971	int pri;
		972
		973	for (pri = NUMPRI; pri--; )
		974	if (pendingcnt [pri])
		975	return 1;
		976
		977	return 0;
		978	}
899		979
900	static void	980	static void
901	call_pending (EV_P)	981	call_pending (EV_P)
902	{	982	{
903	int pri;	983	int pri;
…		…
908	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	988	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
909		989
910	if (p->w)	990	if (p->w)
911	{	991	{
912	p->w->pending = 0;	992	p->w->pending = 0;
913	p->w->cb (EV_A_ p->w, p->events);	993	EV_CB_INVOKE (p->w, p->events);
914	}	994	}
915	}	995	}
916	}	996	}
917		997
918	static void	998	static void
…		…
926		1006
927	/* first reschedule or stop timer */	1007	/* first reschedule or stop timer */
928	if (w->repeat)	1008	if (w->repeat)
929	{	1009	{
930	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1010	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1011
931	((WT)w)->at = mn_now + w->repeat;	1012	((WT)w)->at += w->repeat;
		1013	if (((WT)w)->at < mn_now)
		1014	((WT)w)->at = mn_now;
		1015
932	downheap ((WT *)timers, timercnt, 0);	1016	downheap ((WT *)timers, timercnt, 0);
933	}	1017	}
934	else	1018	else
935	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1019	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
936		1020
937	event (EV_A_ (W)w, EV_TIMEOUT);	1021	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
938	}	1022	}
939	}	1023	}
940		1024
		1025	#if EV_PERIODICS
941	static void	1026	static void
942	periodics_reify (EV_P)	1027	periodics_reify (EV_P)
943	{	1028	{
944	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1029	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
945	{	1030	{
946	struct ev_periodic *w = periodics [0];	1031	struct ev_periodic *w = periodics [0];
947		1032
948	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1033	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
949		1034
950	/* first reschedule or stop timer */	1035	/* first reschedule or stop timer */
951	if (w->interval)	1036	if (w->reschedule_cb)
952	{	1037	{
		1038	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1039	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1040	downheap ((WT *)periodics, periodiccnt, 0);
		1041	}
		1042	else if (w->interval)
		1043	{
953	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1044	((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));	1045	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);	1046	downheap ((WT *)periodics, periodiccnt, 0);
956	}	1047	}
957	else	1048	else
958	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1049	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
959		1050
960	event (EV_A_ (W)w, EV_PERIODIC);	1051	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
961	}	1052	}
962	}	1053	}
963		1054
964	static void	1055	static void
965	periodics_reschedule (EV_P)	1056	periodics_reschedule (EV_P)
…		…
969	/* adjust periodics after time jump */	1060	/* adjust periodics after time jump */
970	for (i = 0; i < periodiccnt; ++i)	1061	for (i = 0; i < periodiccnt; ++i)
971	{	1062	{
972	struct ev_periodic *w = periodics [i];	1063	struct ev_periodic *w = periodics [i];
973		1064
		1065	if (w->reschedule_cb)
		1066	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
974	if (w->interval)	1067	else if (w->interval)
975	{
976	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1068	((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	}	1069	}
		1070
		1071	/* now rebuild the heap */
		1072	for (i = periodiccnt >> 1; i--; )
		1073	downheap ((WT *)periodics, periodiccnt, i);
987	}	1074	}
		1075	#endif
988		1076
989	inline int	1077	inline int
990	time_update_monotonic (EV_P)	1078	time_update_monotonic (EV_P)
991	{	1079	{
992	mn_now = get_clock ();	1080	mn_now = get_clock ();
993		1081
994	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1082	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
995	{	1083	{
996	rt_now = rtmn_diff + mn_now;	1084	ev_rt_now = rtmn_diff + mn_now;
997	return 0;	1085	return 0;
998	}	1086	}
999	else	1087	else
1000	{	1088	{
1001	now_floor = mn_now;	1089	now_floor = mn_now;
1002	rt_now = ev_time ();	1090	ev_rt_now = ev_time ();
1003	return 1;	1091	return 1;
1004	}	1092	}
1005	}	1093	}
1006		1094
1007	static void	1095	static void
…		…
1016	{	1104	{
1017	ev_tstamp odiff = rtmn_diff;	1105	ev_tstamp odiff = rtmn_diff;
1018		1106
1019	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1107	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1020	{	1108	{
1021	rtmn_diff = rt_now - mn_now;	1109	rtmn_diff = ev_rt_now - mn_now;
1022		1110
1023	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1111	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1024	return; /* all is well */	1112	return; /* all is well */
1025		1113
1026	rt_now = ev_time ();	1114	ev_rt_now = ev_time ();
1027	mn_now = get_clock ();	1115	mn_now = get_clock ();
1028	now_floor = mn_now;	1116	now_floor = mn_now;
1029	}	1117	}
1030		1118
		1119	# if EV_PERIODICS
1031	periodics_reschedule (EV_A);	1120	periodics_reschedule (EV_A);
		1121	# endif
1032	/* no timer adjustment, as the monotonic clock doesn't jump */	1122	/* no timer adjustment, as the monotonic clock doesn't jump */
1033	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1123	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1034	}	1124	}
1035	}	1125	}
1036	else	1126	else
1037	#endif	1127	#endif
1038	{	1128	{
1039	rt_now = ev_time ();	1129	ev_rt_now = ev_time ();
1040		1130
1041	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1131	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1042	{	1132	{
		1133	#if EV_PERIODICS
1043	periodics_reschedule (EV_A);	1134	periodics_reschedule (EV_A);
		1135	#endif
1044		1136
1045	/* adjust timers. this is easy, as the offset is the same for all */	1137	/* adjust timers. this is easy, as the offset is the same for all */
1046	for (i = 0; i < timercnt; ++i)	1138	for (i = 0; i < timercnt; ++i)
1047	((WT)timers [i])->at += rt_now - mn_now;	1139	((WT)timers [i])->at += ev_rt_now - mn_now;
1048	}	1140	}
1049		1141
1050	mn_now = rt_now;	1142	mn_now = ev_rt_now;
1051	}	1143	}
1052	}	1144	}
1053		1145
1054	void	1146	void
1055	ev_ref (EV_P)	1147	ev_ref (EV_P)
…		…
1069	ev_loop (EV_P_ int flags)	1161	ev_loop (EV_P_ int flags)
1070	{	1162	{
1071	double block;	1163	double block;
1072	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1164	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1073		1165
1074	do	1166	while (activecnt)
1075	{	1167	{
1076	/* queue check watchers (and execute them) */	1168	/* queue check watchers (and execute them) */
1077	if (expect_false (preparecnt))	1169	if (expect_false (preparecnt))
1078	{	1170	{
1079	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1171	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1087	/* update fd-related kernel structures */	1179	/* update fd-related kernel structures */
1088	fd_reify (EV_A);	1180	fd_reify (EV_A);
1089		1181
1090	/* calculate blocking time */	1182	/* calculate blocking time */
1091		1183
1092	/* we only need this for !monotonic clockor timers, but as we basically	1184	/* we only need this for !monotonic clock or timers, but as we basically
1093	always have timers, we just calculate it always */	1185	always have timers, we just calculate it always */
1094	#if EV_USE_MONOTONIC	1186	#if EV_USE_MONOTONIC
1095	if (expect_true (have_monotonic))	1187	if (expect_true (have_monotonic))
1096	time_update_monotonic (EV_A);	1188	time_update_monotonic (EV_A);
1097	else	1189	else
1098	#endif	1190	#endif
1099	{	1191	{
1100	rt_now = ev_time ();	1192	ev_rt_now = ev_time ();
1101	mn_now = rt_now;	1193	mn_now = ev_rt_now;
1102	}	1194	}
1103		1195
1104	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1196	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1105	block = 0.;	1197	block = 0.;
1106	else	1198	else
…		…
1111	{	1203	{
1112	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1204	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1113	if (block > to) block = to;	1205	if (block > to) block = to;
1114	}	1206	}
1115		1207
		1208	#if EV_PERIODICS
1116	if (periodiccnt)	1209	if (periodiccnt)
1117	{	1210	{
1118	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1211	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1119	if (block > to) block = to;	1212	if (block > to) block = to;
1120	}	1213	}
		1214	#endif
1121		1215
1122	if (block < 0.) block = 0.;	1216	if (block < 0.) block = 0.;
1123	}	1217	}
1124		1218
1125	method_poll (EV_A_ block);	1219	method_poll (EV_A_ block);
1126		1220
1127	/* update rt_now, do magic */	1221	/* update ev_rt_now, do magic */
1128	time_update (EV_A);	1222	time_update (EV_A);
1129		1223
1130	/* queue pending timers and reschedule them */	1224	/* queue pending timers and reschedule them */
1131	timers_reify (EV_A); /* relative timers called last */	1225	timers_reify (EV_A); /* relative timers called last */
		1226	#if EV_PERIODICS
1132	periodics_reify (EV_A); /* absolute timers called first */	1227	periodics_reify (EV_A); /* absolute timers called first */
		1228	#endif
1133		1229
1134	/* queue idle watchers unless io or timers are pending */	1230	/* queue idle watchers unless io or timers are pending */
1135	if (!pendingcnt)	1231	if (idlecnt && !any_pending (EV_A))
1136	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1232	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1137		1233
1138	/* queue check watchers, to be executed first */	1234	/* queue check watchers, to be executed first */
1139	if (checkcnt)	1235	if (checkcnt)
1140	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1236	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1141		1237
1142	call_pending (EV_A);	1238	call_pending (EV_A);
		1239
		1240	if (loop_done)
		1241	break;
1143	}	1242	}
1144	while (activecnt && !loop_done);
1145		1243
1146	if (loop_done != 2)	1244	if (loop_done != 2)
1147	loop_done = 0;	1245	loop_done = 0;
1148	}	1246	}
1149		1247
…		…
1215	return;	1313	return;
1216		1314
1217	assert (("ev_io_start called with negative fd", fd >= 0));	1315	assert (("ev_io_start called with negative fd", fd >= 0));
1218		1316
1219	ev_start (EV_A_ (W)w, 1);	1317	ev_start (EV_A_ (W)w, 1);
1220	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1318	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1221	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1319	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1222		1320
1223	fd_change (EV_A_ fd);	1321	fd_change (EV_A_ fd);
1224	}	1322	}
1225		1323
…		…
1228	{	1326	{
1229	ev_clear_pending (EV_A_ (W)w);	1327	ev_clear_pending (EV_A_ (W)w);
1230	if (!ev_is_active (w))	1328	if (!ev_is_active (w))
1231	return;	1329	return;
1232		1330
		1331	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1332
1233	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1333	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1234	ev_stop (EV_A_ (W)w);	1334	ev_stop (EV_A_ (W)w);
1235		1335
1236	fd_change (EV_A_ w->fd);	1336	fd_change (EV_A_ w->fd);
1237	}	1337	}
…		…
1245	((WT)w)->at += mn_now;	1345	((WT)w)->at += mn_now;
1246		1346
1247	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1347	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1248		1348
1249	ev_start (EV_A_ (W)w, ++timercnt);	1349	ev_start (EV_A_ (W)w, ++timercnt);
1250	array_needsize (timers, timermax, timercnt, (void));	1350	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1251	timers [timercnt - 1] = w;	1351	timers [timercnt - 1] = w;
1252	upheap ((WT *)timers, timercnt - 1);	1352	upheap ((WT *)timers, timercnt - 1);
1253		1353
1254	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1354	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1255	}	1355	}
…		…
1264	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1364	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1265		1365
1266	if (((W)w)->active < timercnt--)	1366	if (((W)w)->active < timercnt--)
1267	{	1367	{
1268	timers [((W)w)->active - 1] = timers [timercnt];	1368	timers [((W)w)->active - 1] = timers [timercnt];
1269	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1270	}	1370	}
1271		1371
1272	((WT)w)->at = w->repeat;	1372	((WT)w)->at -= mn_now;
1273		1373
1274	ev_stop (EV_A_ (W)w);	1374	ev_stop (EV_A_ (W)w);
1275	}	1375	}
1276		1376
1277	void	1377	void
…		…
1280	if (ev_is_active (w))	1380	if (ev_is_active (w))
1281	{	1381	{
1282	if (w->repeat)	1382	if (w->repeat)
1283	{	1383	{
1284	((WT)w)->at = mn_now + w->repeat;	1384	((WT)w)->at = mn_now + w->repeat;
1285	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1385	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1286	}	1386	}
1287	else	1387	else
1288	ev_timer_stop (EV_A_ w);	1388	ev_timer_stop (EV_A_ w);
1289	}	1389	}
1290	else if (w->repeat)	1390	else if (w->repeat)
		1391	{
		1392	w->at = w->repeat;
1291	ev_timer_start (EV_A_ w);	1393	ev_timer_start (EV_A_ w);
		1394	}
1292	}	1395	}
1293		1396
		1397	#if EV_PERIODICS
1294	void	1398	void
1295	ev_periodic_start (EV_P_ struct ev_periodic *w)	1399	ev_periodic_start (EV_P_ struct ev_periodic *w)
1296	{	1400	{
1297	if (ev_is_active (w))	1401	if (ev_is_active (w))
1298	return;	1402	return;
1299		1403
		1404	if (w->reschedule_cb)
		1405	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1406	else if (w->interval)
		1407	{
1300	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1408	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 */	1409	/* 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;	1410	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1411	}
1305		1412
1306	ev_start (EV_A_ (W)w, ++periodiccnt);	1413	ev_start (EV_A_ (W)w, ++periodiccnt);
1307	array_needsize (periodics, periodicmax, periodiccnt, (void));	1414	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1308	periodics [periodiccnt - 1] = w;	1415	periodics [periodiccnt - 1] = w;
1309	upheap ((WT *)periodics, periodiccnt - 1);	1416	upheap ((WT *)periodics, periodiccnt - 1);
1310		1417
1311	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1418	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1312	}	1419	}
…		…
1321	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1428	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1322		1429
1323	if (((W)w)->active < periodiccnt--)	1430	if (((W)w)->active < periodiccnt--)
1324	{	1431	{
1325	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1432	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1326	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1433	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1327	}	1434	}
1328		1435
1329	ev_stop (EV_A_ (W)w);	1436	ev_stop (EV_A_ (W)w);
1330	}	1437	}
1331		1438
1332	void	1439	void
		1440	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1441	{
		1442	/* TODO: use adjustheap and recalculation */
		1443	ev_periodic_stop (EV_A_ w);
		1444	ev_periodic_start (EV_A_ w);
		1445	}
		1446	#endif
		1447
		1448	void
1333	ev_idle_start (EV_P_ struct ev_idle *w)	1449	ev_idle_start (EV_P_ struct ev_idle *w)
1334	{	1450	{
1335	if (ev_is_active (w))	1451	if (ev_is_active (w))
1336	return;	1452	return;
1337		1453
1338	ev_start (EV_A_ (W)w, ++idlecnt);	1454	ev_start (EV_A_ (W)w, ++idlecnt);
1339	array_needsize (idles, idlemax, idlecnt, (void));	1455	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1340	idles [idlecnt - 1] = w;	1456	idles [idlecnt - 1] = w;
1341	}	1457	}
1342		1458
1343	void	1459	void
1344	ev_idle_stop (EV_P_ struct ev_idle *w)	1460	ev_idle_stop (EV_P_ struct ev_idle *w)
1345	{	1461	{
1346	ev_clear_pending (EV_A_ (W)w);	1462	ev_clear_pending (EV_A_ (W)w);
1347	if (ev_is_active (w))	1463	if (!ev_is_active (w))
1348	return;	1464	return;
1349		1465
1350	idles [((W)w)->active - 1] = idles [--idlecnt];	1466	idles [((W)w)->active - 1] = idles [--idlecnt];
1351	ev_stop (EV_A_ (W)w);	1467	ev_stop (EV_A_ (W)w);
1352	}	1468	}
…		…
1356	{	1472	{
1357	if (ev_is_active (w))	1473	if (ev_is_active (w))
1358	return;	1474	return;
1359		1475
1360	ev_start (EV_A_ (W)w, ++preparecnt);	1476	ev_start (EV_A_ (W)w, ++preparecnt);
1361	array_needsize (prepares, preparemax, preparecnt, (void));	1477	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1362	prepares [preparecnt - 1] = w;	1478	prepares [preparecnt - 1] = w;
1363	}	1479	}
1364		1480
1365	void	1481	void
1366	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1482	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1367	{	1483	{
1368	ev_clear_pending (EV_A_ (W)w);	1484	ev_clear_pending (EV_A_ (W)w);
1369	if (ev_is_active (w))	1485	if (!ev_is_active (w))
1370	return;	1486	return;
1371		1487
1372	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1488	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1373	ev_stop (EV_A_ (W)w);	1489	ev_stop (EV_A_ (W)w);
1374	}	1490	}
…		…
1378	{	1494	{
1379	if (ev_is_active (w))	1495	if (ev_is_active (w))
1380	return;	1496	return;
1381		1497
1382	ev_start (EV_A_ (W)w, ++checkcnt);	1498	ev_start (EV_A_ (W)w, ++checkcnt);
1383	array_needsize (checks, checkmax, checkcnt, (void));	1499	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1384	checks [checkcnt - 1] = w;	1500	checks [checkcnt - 1] = w;
1385	}	1501	}
1386		1502
1387	void	1503	void
1388	ev_check_stop (EV_P_ struct ev_check *w)	1504	ev_check_stop (EV_P_ struct ev_check *w)
1389	{	1505	{
1390	ev_clear_pending (EV_A_ (W)w);	1506	ev_clear_pending (EV_A_ (W)w);
1391	if (ev_is_active (w))	1507	if (!ev_is_active (w))
1392	return;	1508	return;
1393		1509
1394	checks [((W)w)->active - 1] = checks [--checkcnt];	1510	checks [((W)w)->active - 1] = checks [--checkcnt];
1395	ev_stop (EV_A_ (W)w);	1511	ev_stop (EV_A_ (W)w);
1396	}	1512	}
…		…
1401		1517
1402	void	1518	void
1403	ev_signal_start (EV_P_ struct ev_signal *w)	1519	ev_signal_start (EV_P_ struct ev_signal *w)
1404	{	1520	{
1405	#if EV_MULTIPLICITY	1521	#if EV_MULTIPLICITY
1406	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1522	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1407	#endif	1523	#endif
1408	if (ev_is_active (w))	1524	if (ev_is_active (w))
1409	return;	1525	return;
1410		1526
1411	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1527	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1412		1528
1413	ev_start (EV_A_ (W)w, 1);	1529	ev_start (EV_A_ (W)w, 1);
1414	array_needsize (signals, signalmax, w->signum, signals_init);	1530	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1415	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1531	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1416		1532
1417	if (!((WL)w)->next)	1533	if (!((WL)w)->next)
1418	{	1534	{
1419	#if WIN32	1535	#if _WIN32
1420	signal (w->signum, sighandler);	1536	signal (w->signum, sighandler);
1421	#else	1537	#else
1422	struct sigaction sa;	1538	struct sigaction sa;
1423	sa.sa_handler = sighandler;	1539	sa.sa_handler = sighandler;
1424	sigfillset (&sa.sa_mask);	1540	sigfillset (&sa.sa_mask);
…		…
1444		1560
1445	void	1561	void
1446	ev_child_start (EV_P_ struct ev_child *w)	1562	ev_child_start (EV_P_ struct ev_child *w)
1447	{	1563	{
1448	#if EV_MULTIPLICITY	1564	#if EV_MULTIPLICITY
1449	assert (("child watchers are only supported in the default loop", loop == default_loop));	1565	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1450	#endif	1566	#endif
1451	if (ev_is_active (w))	1567	if (ev_is_active (w))
1452	return;	1568	return;
1453		1569
1454	ev_start (EV_A_ (W)w, 1);	1570	ev_start (EV_A_ (W)w, 1);
…		…
1457		1573
1458	void	1574	void
1459	ev_child_stop (EV_P_ struct ev_child *w)	1575	ev_child_stop (EV_P_ struct ev_child *w)
1460	{	1576	{
1461	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1462	if (ev_is_active (w))	1578	if (!ev_is_active (w))
1463	return;	1579	return;
1464		1580
1465	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1581	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1466	ev_stop (EV_A_ (W)w);	1582	ev_stop (EV_A_ (W)w);
1467	}	1583	}
…		…
1502	}	1618	}
1503		1619
1504	void	1620	void
1505	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1621	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1506	{	1622	{
1507	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1623	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1508		1624
1509	if (!once)	1625	if (!once)
1510	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1626	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1511	else	1627	else
1512	{	1628	{
1513	once->cb = cb;	1629	once->cb = cb;
1514	once->arg = arg;	1630	once->arg = arg;
1515		1631
1516	ev_watcher_init (&once->io, once_cb_io);	1632	ev_init (&once->io, once_cb_io);
1517	if (fd >= 0)	1633	if (fd >= 0)
1518	{	1634	{
1519	ev_io_set (&once->io, fd, events);	1635	ev_io_set (&once->io, fd, events);
1520	ev_io_start (EV_A_ &once->io);	1636	ev_io_start (EV_A_ &once->io);
1521	}	1637	}
1522		1638
1523	ev_watcher_init (&once->to, once_cb_to);	1639	ev_init (&once->to, once_cb_to);
1524	if (timeout >= 0.)	1640	if (timeout >= 0.)
1525	{	1641	{
1526	ev_timer_set (&once->to, timeout, 0.);	1642	ev_timer_set (&once->to, timeout, 0.);
1527	ev_timer_start (EV_A_ &once->to);	1643	ev_timer_start (EV_A_ &once->to);
1528	}	1644	}
1529	}	1645	}
1530	}	1646	}
1531		1647
		1648	#ifdef __cplusplus
		1649	}
		1650	#endif
		1651

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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 1.116 by root, Thu Nov 15 09:19:42 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 1.116 by root, Thu Nov 15 09:19:42 2007 UTC