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

Comparing libev/ev.c (file contents):
Revision 1.73 by root, Tue Nov 6 16:27:10 2007 UTC vs.
Revision 1.117 by ayin, Thu Nov 15 17:15:56 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
…		…
66	#include <sys/types.h>	75	#include <sys/types.h>
67	#include <time.h>	76	#include <time.h>
68		77
69	#include <signal.h>	78	#include <signal.h>
70		79
71	#ifndef WIN32	80	#ifndef _WIN32
72	# include <unistd.h>	81	# include <unistd.h>
73	# include <sys/time.h>	82	# include <sys/time.h>
74	# 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
75	#endif	89	# endif
		90	#endif
		91
76	/**/	92	/**/
77		93
78	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
80	#endif	96	#endif
81		97
82	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
84	#endif	101	#endif
85		102
86	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
87	# 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
88	#endif	109	#endif
89		110
90	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
92	#endif	113	#endif
93		114
94	#ifndef EV_USE_KQUEUE	115	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	116	# define EV_USE_KQUEUE 0
96	#endif	117	#endif
97		118
98	#ifndef EV_USE_WIN32
99	# ifdef WIN32
100	# define EV_USE_WIN32 0 /* it does not exist, use select */
101	# undef EV_USE_SELECT
102	# define EV_USE_SELECT 1
103	# else
104	# define EV_USE_WIN32 0
105	# endif
106	#endif
107
108	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
109	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
110	#endif	121	#endif
111		122
112	/**/	123	/**/
		124
		125	/* darwin simply cannot be helped */
		126	#ifdef __APPLE__
		127	# undef EV_USE_POLL
		128	# undef EV_USE_KQUEUE
		129	#endif
113		130
114	#ifndef CLOCK_MONOTONIC	131	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	132	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	133	# define EV_USE_MONOTONIC 0
117	#endif	134	#endif
118		135
119	#ifndef CLOCK_REALTIME	136	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	137	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	138	# define EV_USE_REALTIME 0
		139	#endif
		140
		141	#if EV_SELECT_IS_WINSOCKET
		142	# include <winsock.h>
122	#endif	143	#endif
123		144
124	/**/	145	/**/
125		146
126	#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) */
127	#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) */
128	#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 */
129	/#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 */
130		151
		152	#ifdef EV_H
		153	# include EV_H
		154	#else
131	#include "ev.h"	155	# include "ev.h"
		156	#endif
132		157
133	#if __GNUC__ >= 3	158	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	159	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	160	# define inline inline
136	#else	161	#else
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	167	#define expect_true(expr) expect ((expr) != 0, 1)
143		168
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	169	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	170	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		171
		172	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		173	#define EMPTY2(a,b) /* used to suppress some warnings */
		174
147	typedef struct ev_watcher *W;	175	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	176	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	177	typedef struct ev_watcher_time *WT;
150		178
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	179	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		180
		181	#ifdef _WIN32
153	#include "ev_win32.c"	182	# include "ev_win32.c"
		183	#endif
154		184
155	/*****************************************************************************/	185	/*****************************************************************************/
156		186
157	static void (syserr_cb)(const char msg);	187	static void (syserr_cb)(const char msg);
158		188
…		…
205	typedef struct	235	typedef struct
206	{	236	{
207	WL head;	237	WL head;
208	unsigned char events;	238	unsigned char events;
209	unsigned char reify;	239	unsigned char reify;
		240	#if EV_SELECT_IS_WINSOCKET
		241	SOCKET handle;
		242	#endif
210	} ANFD;	243	} ANFD;
211		244
212	typedef struct	245	typedef struct
213	{	246	{
214	W w;	247	W w;
215	int events;	248	int events;
216	} ANPENDING;	249	} ANPENDING;
217		250
218	#if EV_MULTIPLICITY	251	#if EV_MULTIPLICITY
219		252
220	struct ev_loop	253	struct ev_loop
221	{	254	{
		255	ev_tstamp ev_rt_now;
		256	#define ev_rt_now ((loop)->ev_rt_now)
222	# define VAR(name,decl) decl;	257	#define VAR(name,decl) decl;
223	# include "ev_vars.h"	258	#include "ev_vars.h"
224	};
225	# undef VAR	259	#undef VAR
		260	};
226	# 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;
227		265
228	#else	266	#else
229		267
		268	ev_tstamp ev_rt_now;
230	# define VAR(name,decl) static decl;	269	#define VAR(name,decl) static decl;
231	# include "ev_vars.h"	270	#include "ev_vars.h"
232	# undef VAR	271	#undef VAR
		272
		273	static int ev_default_loop_ptr;
233		274
234	#endif	275	#endif
235		276
236	/*****************************************************************************/	277	/*****************************************************************************/
237		278
238	inline ev_tstamp	279	ev_tstamp
239	ev_time (void)	280	ev_time (void)
240	{	281	{
241	#if EV_USE_REALTIME	282	#if EV_USE_REALTIME
242	struct timespec ts;	283	struct timespec ts;
243	clock_gettime (CLOCK_REALTIME, &ts);	284	clock_gettime (CLOCK_REALTIME, &ts);
…		…
262	#endif	303	#endif
263		304
264	return ev_time ();	305	return ev_time ();
265	}	306	}
266		307
		308	#if EV_MULTIPLICITY
267	ev_tstamp	309	ev_tstamp
268	ev_now (EV_P)	310	ev_now (EV_P)
269	{	311	{
270	return rt_now;	312	return ev_rt_now;
271	}	313	}
		314	#endif
272		315
273	#define array_roundsize(base,n) ((n) \| 4 & ~3)	316	#define array_roundsize(type,n) (((n) \| 4) & ~3)
274		317
275	#define array_needsize(base,cur,cnt,init) \	318	#define array_needsize(type,base,cur,cnt,init) \
276	if (expect_false ((cnt) > cur)) \	319	if (expect_false ((cnt) > cur)) \
277	{ \	320	{ \
278	int newcnt = cur; \	321	int newcnt = cur; \
279	do \	322	do \
280	{ \	323	{ \
281	newcnt = array_roundsize (base, newcnt << 1); \	324	newcnt = array_roundsize (type, newcnt << 1); \
282	} \	325	} \
283	while ((cnt) > newcnt); \	326	while ((cnt) > newcnt); \
284	\	327	\
285	base = ev_realloc (base, sizeof (base) (newcnt)); \	328	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
286	init (base + cur, newcnt - cur); \	329	init (base + cur, newcnt - cur); \
287	cur = newcnt; \	330	cur = newcnt; \
288	}	331	}
289		332
290	#define array_slim(stem) \	333	#define array_slim(type,stem) \
291	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	334	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
292	{ \	335	{ \
293	stem ## max = array_roundsize (stem ## cnt >> 1); \	336	stem ## max = array_roundsize (stem ## cnt >> 1); \
294	base = ev_realloc (base, sizeof (base) (stem ## max)); \	337	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	338	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
296	}	339	}
297
298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
300	#define array_free_microshit(stem) \
301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
302		340
303	#define array_free(stem, idx) \	341	#define array_free(stem, idx) \
304	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;
305		343
306	/*****************************************************************************/	344	/*****************************************************************************/
…		…
316		354
317	++base;	355	++base;
318	}	356	}
319	}	357	}
320		358
321	static void	359	void
322	event (EV_P_ W w, int events)	360	ev_feed_event (EV_P_ void *w, int revents)
323	{	361	{
		362	W w_ = (W)w;
		363
324	if (w->pending)	364	if (w_->pending)
325	{	365	{
326	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
327	return;	367	return;
328	}	368	}
329		369
330	w->pending = ++pendingcnt [ABSPRI (w)];	370	w_->pending = ++pendingcnt [ABSPRI (w_)];
331	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);
332	pendings [ABSPRI (w)][w->pending - 1].w = w;	372	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
333	pendings [ABSPRI (w)][w->pending - 1].events = events;	373	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
334	}	374	}
335		375
336	static void	376	static void
337	queue_events (EV_P_ W *events, int eventcnt, int type)	377	queue_events (EV_P_ W *events, int eventcnt, int type)
338	{	378	{
339	int i;	379	int i;
340		380
341	for (i = 0; i < eventcnt; ++i)	381	for (i = 0; i < eventcnt; ++i)
342	event (EV_A_ events [i], type);	382	ev_feed_event (EV_A_ events [i], type);
343	}	383	}
344		384
345	static void	385	inline void
346	fd_event (EV_P_ int fd, int events)	386	fd_event (EV_P_ int fd, int revents)
347	{	387	{
348	ANFD *anfd = anfds + fd;	388	ANFD *anfd = anfds + fd;
349	struct ev_io *w;	389	struct ev_io *w;
350		390
351	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)
352	{	392	{
353	int ev = w->events & events;	393	int ev = w->events & revents;
354		394
355	if (ev)	395	if (ev)
356	event (EV_A_ (W)w, ev);	396	ev_feed_event (EV_A_ (W)w, ev);
357	}	397	}
		398	}
		399
		400	void
		401	ev_feed_fd_event (EV_P_ int fd, int revents)
		402	{
		403	fd_event (EV_A_ fd, revents);
358	}	404	}
359		405
360	/*****************************************************************************/	406	/*****************************************************************************/
361		407
362	static void	408	static void
…		…
373	int events = 0;	419	int events = 0;
374		420
375	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)
376	events \|= w->events;	422	events \|= w->events;
377		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
378	anfd->reify = 0;	433	anfd->reify = 0;
379		434
380	method_modify (EV_A_ fd, anfd->events, events);	435	method_modify (EV_A_ fd, anfd->events, events);
381	anfd->events = events;	436	anfd->events = events;
382	}	437	}
…		…
391	return;	446	return;
392		447
393	anfds [fd].reify = 1;	448	anfds [fd].reify = 1;
394		449
395	++fdchangecnt;	450	++fdchangecnt;
396	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));	451	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
397	fdchanges [fdchangecnt - 1] = fd;	452	fdchanges [fdchangecnt - 1] = fd;
398	}	453	}
399		454
400	static void	455	static void
401	fd_kill (EV_P_ int fd)	456	fd_kill (EV_P_ int fd)
…		…
403	struct ev_io *w;	458	struct ev_io *w;
404		459
405	while ((w = (struct ev_io *)anfds [fd].head))	460	while ((w = (struct ev_io *)anfds [fd].head))
406	{	461	{
407	ev_io_stop (EV_A_ w);	462	ev_io_stop (EV_A_ w);
408	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);
409	}	464	}
410	}	465	}
411		466
412	static int	467	static int
413	fd_valid (int fd)	468	fd_valid (int fd)
414	{	469	{
415	#ifdef WIN32	470	#ifdef _WIN32
416	return !!win32_get_osfhandle (fd);	471	return _get_osfhandle (fd) != -1;
417	#else	472	#else
418	return fcntl (fd, F_GETFD) != -1;	473	return fcntl (fd, F_GETFD) != -1;
419	#endif	474	#endif
420	}	475	}
421		476
…		…
501		556
502	heap [k] = w;	557	heap [k] = w;
503	((W)heap [k])->active = k + 1;	558	((W)heap [k])->active = k + 1;
504	}	559	}
505		560
		561	inline void
		562	adjustheap (WT *heap, int N, int k)
		563	{
		564	upheap (heap, k);
		565	downheap (heap, N, k);
		566	}
		567
506	/*****************************************************************************/	568	/*****************************************************************************/
507		569
508	typedef struct	570	typedef struct
509	{	571	{
510	WL head;	572	WL head;
…		…
531	}	593	}
532		594
533	static void	595	static void
534	sighandler (int signum)	596	sighandler (int signum)
535	{	597	{
536	#if WIN32	598	#if _WIN32
537	signal (signum, sighandler);	599	signal (signum, sighandler);
538	#endif	600	#endif
539		601
540	signals [signum - 1].gotsig = 1;	602	signals [signum - 1].gotsig = 1;
541		603
…		…
546	write (sigpipe [1], &signum, 1);	608	write (sigpipe [1], &signum, 1);
547	errno = old_errno;	609	errno = old_errno;
548	}	610	}
549	}	611	}
550		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
551	static void	633	static void
552	sigcb (EV_P_ struct ev_io *iow, int revents)	634	sigcb (EV_P_ struct ev_io *iow, int revents)
553	{	635	{
554	WL w;
555	int signum;	636	int signum;
556		637
557	read (sigpipe [0], &revents, 1);	638	read (sigpipe [0], &revents, 1);
558	gotsig = 0;	639	gotsig = 0;
559		640
560	for (signum = signalmax; signum--; )	641	for (signum = signalmax; signum--; )
561	if (signals [signum].gotsig)	642	if (signals [signum].gotsig)
562	{	643	ev_feed_signal_event (EV_A_ signum + 1);
563	signals [signum].gotsig = 0;	644	}
564		645
565	for (w = signals [signum].head; w; w = w->next)	646	inline void
566	event (EV_A_ (W)w, EV_SIGNAL);	647	fd_intern (int fd)
567	}	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
568	}	656	}
569		657
570	static void	658	static void
571	siginit (EV_P)	659	siginit (EV_P)
572	{	660	{
573	#ifndef WIN32	661	fd_intern (sigpipe [0]);
574	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	662	fd_intern (sigpipe [1]);
575	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
576
577	/* rather than sort out wether we really need nb, set it */
578	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
579	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
580	#endif
581		663
582	ev_io_set (&sigev, sigpipe [0], EV_READ);	664	ev_io_set (&sigev, sigpipe [0], EV_READ);
583	ev_io_start (EV_A_ &sigev);	665	ev_io_start (EV_A_ &sigev);
584	ev_unref (EV_A); /* child watcher should not keep loop alive */	666	ev_unref (EV_A); /* child watcher should not keep loop alive */
585	}	667	}
586		668
587	/*****************************************************************************/	669	/*****************************************************************************/
588		670
589	static struct ev_child *childs [PID_HASHSIZE];	671	static struct ev_child *childs [PID_HASHSIZE];
590		672
591	#ifndef WIN32	673	#ifndef _WIN32
592		674
593	static struct ev_signal childev;	675	static struct ev_signal childev;
594		676
595	#ifndef WCONTINUED	677	#ifndef WCONTINUED
596	# define WCONTINUED 0	678	# define WCONTINUED 0
…		…
605	if (w->pid == pid \|\| !w->pid)	687	if (w->pid == pid \|\| !w->pid)
606	{	688	{
607	ev_priority (w) = ev_priority (sw); /* need to do it now */	689	ev_priority (w) = ev_priority (sw); /* need to do it now */
608	w->rpid = pid;	690	w->rpid = pid;
609	w->rstatus = status;	691	w->rstatus = status;
610	event (EV_A_ (W)w, EV_CHILD);	692	ev_feed_event (EV_A_ (W)w, EV_CHILD);
611	}	693	}
612	}	694	}
613		695
614	static void	696	static void
615	childcb (EV_P_ struct ev_signal *sw, int revents)	697	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
617	int pid, status;	699	int pid, status;
618		700
619	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	701	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
620	{	702	{
621	/* 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 */
622	event (EV_A_ (W)sw, EV_SIGNAL);	704	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
623		705
624	child_reap (EV_A_ sw, pid, pid, status);	706	child_reap (EV_A_ sw, pid, pid, status);
625	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 */
626	}	708	}
627	}	709	}
…		…
657		739
658	/* 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 */
659	static int	741	static int
660	enable_secure (void)	742	enable_secure (void)
661	{	743	{
662	#ifdef WIN32	744	#ifdef _WIN32
663	return 0;	745	return 0;
664	#else	746	#else
665	return getuid () != geteuid ()	747	return getuid () != geteuid ()
666	\|\| getgid () != getegid ();	748	\|\| getgid () != getegid ();
667	#endif	749	#endif
668	}	750	}
669		751
670	int	752	unsigned int
671	ev_method (EV_P)	753	ev_method (EV_P)
672	{	754	{
673	return method;	755	return method;
674	}	756	}
675		757
676	static void	758	static void
677	loop_init (EV_P_ int methods)	759	loop_init (EV_P_ unsigned int flags)
678	{	760	{
679	if (!method)	761	if (!method)
680	{	762	{
681	#if EV_USE_MONOTONIC	763	#if EV_USE_MONOTONIC
682	{	764	{
…		…
684	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	766	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
685	have_monotonic = 1;	767	have_monotonic = 1;
686	}	768	}
687	#endif	769	#endif
688		770
689	rt_now = ev_time ();	771	ev_rt_now = ev_time ();
690	mn_now = get_clock ();	772	mn_now = get_clock ();
691	now_floor = mn_now;	773	now_floor = mn_now;
692	rtmn_diff = rt_now - mn_now;	774	rtmn_diff = ev_rt_now - mn_now;
693		775
694	if (methods == EVMETHOD_AUTO)	776	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
695	if (!enable_secure () && getenv ("LIBEV_METHODS"))
696	methods = atoi (getenv ("LIBEV_METHODS"));	777	flags = atoi (getenv ("LIBEV_FLAGS"));
697	else	778
698	methods = EVMETHOD_ANY;	779	if (!(flags & 0x0000ffff))
		780	flags \|= 0x0000ffff;
699		781
700	method = 0;	782	method = 0;
701	#if EV_USE_WIN32
702	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);
703	#endif
704	#if EV_USE_KQUEUE	783	#if EV_USE_KQUEUE
705	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	784	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
706	#endif	785	#endif
707	#if EV_USE_EPOLL	786	#if EV_USE_EPOLL
708	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	787	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
709	#endif	788	#endif
710	#if EV_USE_POLL	789	#if EV_USE_POLL
711	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	790	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
712	#endif	791	#endif
713	#if EV_USE_SELECT	792	#if EV_USE_SELECT
714	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	793	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
715	#endif	794	#endif
716		795
717	ev_watcher_init (&sigev, sigcb);	796	ev_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);	797	ev_set_priority (&sigev, EV_MAXPRI);
719	}	798	}
720	}	799	}
721		800
722	void	801	void
723	loop_destroy (EV_P)	802	loop_destroy (EV_P)
724	{	803	{
725	int i;	804	int i;
726		805
727	#if EV_USE_WIN32
728	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);
729	#endif
730	#if EV_USE_KQUEUE	806	#if EV_USE_KQUEUE
731	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	807	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
732	#endif	808	#endif
733	#if EV_USE_EPOLL	809	#if EV_USE_EPOLL
734	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	810	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
742		818
743	for (i = NUMPRI; i--; )	819	for (i = NUMPRI; i--; )
744	array_free (pending, [i]);	820	array_free (pending, [i]);
745		821
746	/* have to use the microsoft-never-gets-it-right macro */	822	/* have to use the microsoft-never-gets-it-right macro */
747	array_free_microshit (fdchange);	823	array_free (fdchange, EMPTY0);
748	array_free_microshit (timer);	824	array_free (timer, EMPTY0);
749	array_free_microshit (periodic);	825	#if EV_PERIODICS
750	array_free_microshit (idle);	826	array_free (periodic, EMPTY0);
751	array_free_microshit (prepare);	827	#endif
752	array_free_microshit (check);	828	array_free (idle, EMPTY0);
		829	array_free (prepare, EMPTY0);
		830	array_free (check, EMPTY0);
753		831
754	method = 0;	832	method = 0;
755	}	833	}
756		834
757	static void	835	static void
…		…
782	postfork = 0;	860	postfork = 0;
783	}	861	}
784		862
785	#if EV_MULTIPLICITY	863	#if EV_MULTIPLICITY
786	struct ev_loop *	864	struct ev_loop *
787	ev_loop_new (int methods)	865	ev_loop_new (unsigned int flags)
788	{	866	{
789	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));
790		868
791	memset (loop, 0, sizeof (struct ev_loop));	869	memset (loop, 0, sizeof (struct ev_loop));
792		870
793	loop_init (EV_A_ methods);	871	loop_init (EV_A_ flags);
794		872
795	if (ev_method (EV_A))	873	if (ev_method (EV_A))
796	return loop;	874	return loop;
797		875
798	return 0;	876	return 0;
…		…
812	}	890	}
813		891
814	#endif	892	#endif
815		893
816	#if EV_MULTIPLICITY	894	#if EV_MULTIPLICITY
817	struct ev_loop default_loop_struct;
818	static struct ev_loop *default_loop;
819
820	struct ev_loop *	895	struct ev_loop *
		896	ev_default_loop_ (unsigned int flags)
821	#else	897	#else
822	static int default_loop;
823
824	int	898	int
		899	ev_default_loop (unsigned int flags)
825	#endif	900	#endif
826	ev_default_loop (int methods)
827	{	901	{
828	if (sigpipe [0] == sigpipe [1])	902	if (sigpipe [0] == sigpipe [1])
829	if (pipe (sigpipe))	903	if (pipe (sigpipe))
830	return 0;	904	return 0;
831		905
832	if (!default_loop)	906	if (!ev_default_loop_ptr)
833	{	907	{
834	#if EV_MULTIPLICITY	908	#if EV_MULTIPLICITY
835	struct ev_loop *loop = default_loop = &default_loop_struct;	909	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
836	#else	910	#else
837	default_loop = 1;	911	ev_default_loop_ptr = 1;
838	#endif	912	#endif
839		913
840	loop_init (EV_A_ methods);	914	loop_init (EV_A_ flags);
841		915
842	if (ev_method (EV_A))	916	if (ev_method (EV_A))
843	{	917	{
844	siginit (EV_A);	918	siginit (EV_A);
845		919
846	#ifndef WIN32	920	#ifndef _WIN32
847	ev_signal_init (&childev, childcb, SIGCHLD);	921	ev_signal_init (&childev, childcb, SIGCHLD);
848	ev_set_priority (&childev, EV_MAXPRI);	922	ev_set_priority (&childev, EV_MAXPRI);
849	ev_signal_start (EV_A_ &childev);	923	ev_signal_start (EV_A_ &childev);
850	ev_unref (EV_A); /* child watcher should not keep loop alive */	924	ev_unref (EV_A); /* child watcher should not keep loop alive */
851	#endif	925	#endif
852	}	926	}
853	else	927	else
854	default_loop = 0;	928	ev_default_loop_ptr = 0;
855	}	929	}
856		930
857	return default_loop;	931	return ev_default_loop_ptr;
858	}	932	}
859		933
860	void	934	void
861	ev_default_destroy (void)	935	ev_default_destroy (void)
862	{	936	{
863	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
864	struct ev_loop *loop = default_loop;	938	struct ev_loop *loop = ev_default_loop_ptr;
865	#endif	939	#endif
866		940
867	#ifndef WIN32	941	#ifndef _WIN32
868	ev_ref (EV_A); /* child watcher */	942	ev_ref (EV_A); /* child watcher */
869	ev_signal_stop (EV_A_ &childev);	943	ev_signal_stop (EV_A_ &childev);
870	#endif	944	#endif
871		945
872	ev_ref (EV_A); /* signal watcher */	946	ev_ref (EV_A); /* signal watcher */
…		…
880		954
881	void	955	void
882	ev_default_fork (void)	956	ev_default_fork (void)
883	{	957	{
884	#if EV_MULTIPLICITY	958	#if EV_MULTIPLICITY
885	struct ev_loop *loop = default_loop;	959	struct ev_loop *loop = ev_default_loop_ptr;
886	#endif	960	#endif
887		961
888	if (method)	962	if (method)
889	postfork = 1;	963	postfork = 1;
890	}	964	}
891		965
892	/*****************************************************************************/	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	}
893		979
894	static void	980	static void
895	call_pending (EV_P)	981	call_pending (EV_P)
896	{	982	{
897	int pri;	983	int pri;
…		…
902	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	988	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
903		989
904	if (p->w)	990	if (p->w)
905	{	991	{
906	p->w->pending = 0;	992	p->w->pending = 0;
907	p->w->cb (EV_A_ p->w, p->events);	993	EV_CB_INVOKE (p->w, p->events);
908	}	994	}
909	}	995	}
910	}	996	}
911		997
912	static void	998	static void
…		…
920		1006
921	/* first reschedule or stop timer */	1007	/* first reschedule or stop timer */
922	if (w->repeat)	1008	if (w->repeat)
923	{	1009	{
924	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
925	((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
926	downheap ((WT *)timers, timercnt, 0);	1016	downheap ((WT *)timers, timercnt, 0);
927	}	1017	}
928	else	1018	else
929	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1019	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
930		1020
931	event (EV_A_ (W)w, EV_TIMEOUT);	1021	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
932	}	1022	}
933	}	1023	}
934		1024
		1025	#if EV_PERIODICS
935	static void	1026	static void
936	periodics_reify (EV_P)	1027	periodics_reify (EV_P)
937	{	1028	{
938	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1029	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
939	{	1030	{
940	struct ev_periodic *w = periodics [0];	1031	struct ev_periodic *w = periodics [0];
941		1032
942	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1033	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
943		1034
944	/* first reschedule or stop timer */	1035	/* first reschedule or stop timer */
945	if (w->interval)	1036	if (w->reschedule_cb)
946	{	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	{
947	((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;
948	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));
949	downheap ((WT *)periodics, periodiccnt, 0);	1046	downheap ((WT *)periodics, periodiccnt, 0);
950	}	1047	}
951	else	1048	else
952	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1049	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
953		1050
954	event (EV_A_ (W)w, EV_PERIODIC);	1051	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
955	}	1052	}
956	}	1053	}
957		1054
958	static void	1055	static void
959	periodics_reschedule (EV_P)	1056	periodics_reschedule (EV_P)
…		…
963	/* adjust periodics after time jump */	1060	/* adjust periodics after time jump */
964	for (i = 0; i < periodiccnt; ++i)	1061	for (i = 0; i < periodiccnt; ++i)
965	{	1062	{
966	struct ev_periodic *w = periodics [i];	1063	struct ev_periodic *w = periodics [i];
967		1064
		1065	if (w->reschedule_cb)
		1066	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
968	if (w->interval)	1067	else if (w->interval)
969	{
970	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;
971
972	if (fabs (diff) >= 1e-4)
973	{
974	ev_periodic_stop (EV_A_ w);
975	ev_periodic_start (EV_A_ w);
976
977	i = 0; /* restart loop, inefficient, but time jumps should be rare */
978	}
979	}
980	}	1069	}
		1070
		1071	/* now rebuild the heap */
		1072	for (i = periodiccnt >> 1; i--; )
		1073	downheap ((WT *)periodics, periodiccnt, i);
981	}	1074	}
		1075	#endif
982		1076
983	inline int	1077	inline int
984	time_update_monotonic (EV_P)	1078	time_update_monotonic (EV_P)
985	{	1079	{
986	mn_now = get_clock ();	1080	mn_now = get_clock ();
987		1081
988	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1082	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
989	{	1083	{
990	rt_now = rtmn_diff + mn_now;	1084	ev_rt_now = rtmn_diff + mn_now;
991	return 0;	1085	return 0;
992	}	1086	}
993	else	1087	else
994	{	1088	{
995	now_floor = mn_now;	1089	now_floor = mn_now;
996	rt_now = ev_time ();	1090	ev_rt_now = ev_time ();
997	return 1;	1091	return 1;
998	}	1092	}
999	}	1093	}
1000		1094
1001	static void	1095	static void
…		…
1010	{	1104	{
1011	ev_tstamp odiff = rtmn_diff;	1105	ev_tstamp odiff = rtmn_diff;
1012		1106
1013	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 */
1014	{	1108	{
1015	rtmn_diff = rt_now - mn_now;	1109	rtmn_diff = ev_rt_now - mn_now;
1016		1110
1017	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1111	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1018	return; /* all is well */	1112	return; /* all is well */
1019		1113
1020	rt_now = ev_time ();	1114	ev_rt_now = ev_time ();
1021	mn_now = get_clock ();	1115	mn_now = get_clock ();
1022	now_floor = mn_now;	1116	now_floor = mn_now;
1023	}	1117	}
1024		1118
		1119	# if EV_PERIODICS
1025	periodics_reschedule (EV_A);	1120	periodics_reschedule (EV_A);
		1121	# endif
1026	/* no timer adjustment, as the monotonic clock doesn't jump */	1122	/* no timer adjustment, as the monotonic clock doesn't jump */
1027	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1123	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1028	}	1124	}
1029	}	1125	}
1030	else	1126	else
1031	#endif	1127	#endif
1032	{	1128	{
1033	rt_now = ev_time ();	1129	ev_rt_now = ev_time ();
1034		1130
1035	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))
1036	{	1132	{
		1133	#if EV_PERIODICS
1037	periodics_reschedule (EV_A);	1134	periodics_reschedule (EV_A);
		1135	#endif
1038		1136
1039	/* 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 */
1040	for (i = 0; i < timercnt; ++i)	1138	for (i = 0; i < timercnt; ++i)
1041	((WT)timers [i])->at += rt_now - mn_now;	1139	((WT)timers [i])->at += ev_rt_now - mn_now;
1042	}	1140	}
1043		1141
1044	mn_now = rt_now;	1142	mn_now = ev_rt_now;
1045	}	1143	}
1046	}	1144	}
1047		1145
1048	void	1146	void
1049	ev_ref (EV_P)	1147	ev_ref (EV_P)
…		…
1063	ev_loop (EV_P_ int flags)	1161	ev_loop (EV_P_ int flags)
1064	{	1162	{
1065	double block;	1163	double block;
1066	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1164	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1067		1165
1068	do	1166	while (activecnt)
1069	{	1167	{
1070	/* queue check watchers (and execute them) */	1168	/* queue check watchers (and execute them) */
1071	if (expect_false (preparecnt))	1169	if (expect_false (preparecnt))
1072	{	1170	{
1073	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1171	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1081	/* update fd-related kernel structures */	1179	/* update fd-related kernel structures */
1082	fd_reify (EV_A);	1180	fd_reify (EV_A);
1083		1181
1084	/* calculate blocking time */	1182	/* calculate blocking time */
1085		1183
1086	/* 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
1087	always have timers, we just calculate it always */	1185	always have timers, we just calculate it always */
1088	#if EV_USE_MONOTONIC	1186	#if EV_USE_MONOTONIC
1089	if (expect_true (have_monotonic))	1187	if (expect_true (have_monotonic))
1090	time_update_monotonic (EV_A);	1188	time_update_monotonic (EV_A);
1091	else	1189	else
1092	#endif	1190	#endif
1093	{	1191	{
1094	rt_now = ev_time ();	1192	ev_rt_now = ev_time ();
1095	mn_now = rt_now;	1193	mn_now = ev_rt_now;
1096	}	1194	}
1097		1195
1098	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1196	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1099	block = 0.;	1197	block = 0.;
1100	else	1198	else
…		…
1105	{	1203	{
1106	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1204	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1107	if (block > to) block = to;	1205	if (block > to) block = to;
1108	}	1206	}
1109		1207
		1208	#if EV_PERIODICS
1110	if (periodiccnt)	1209	if (periodiccnt)
1111	{	1210	{
1112	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1211	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1113	if (block > to) block = to;	1212	if (block > to) block = to;
1114	}	1213	}
		1214	#endif
1115		1215
1116	if (block < 0.) block = 0.;	1216	if (block < 0.) block = 0.;
1117	}	1217	}
1118		1218
1119	method_poll (EV_A_ block);	1219	method_poll (EV_A_ block);
1120		1220
1121	/* update rt_now, do magic */	1221	/* update ev_rt_now, do magic */
1122	time_update (EV_A);	1222	time_update (EV_A);
1123		1223
1124	/* queue pending timers and reschedule them */	1224	/* queue pending timers and reschedule them */
1125	timers_reify (EV_A); /* relative timers called last */	1225	timers_reify (EV_A); /* relative timers called last */
		1226	#if EV_PERIODICS
1126	periodics_reify (EV_A); /* absolute timers called first */	1227	periodics_reify (EV_A); /* absolute timers called first */
		1228	#endif
1127		1229
1128	/* queue idle watchers unless io or timers are pending */	1230	/* queue idle watchers unless io or timers are pending */
1129	if (!pendingcnt)	1231	if (idlecnt && !any_pending (EV_A))
1130	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1232	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1131		1233
1132	/* queue check watchers, to be executed first */	1234	/* queue check watchers, to be executed first */
1133	if (checkcnt)	1235	if (checkcnt)
1134	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1236	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1135		1237
1136	call_pending (EV_A);	1238	call_pending (EV_A);
		1239
		1240	if (loop_done)
		1241	break;
1137	}	1242	}
1138	while (activecnt && !loop_done);
1139		1243
1140	if (loop_done != 2)	1244	if (loop_done != 2)
1141	loop_done = 0;	1245	loop_done = 0;
1142	}	1246	}
1143		1247
…		…
1209	return;	1313	return;
1210		1314
1211	assert (("ev_io_start called with negative fd", fd >= 0));	1315	assert (("ev_io_start called with negative fd", fd >= 0));
1212		1316
1213	ev_start (EV_A_ (W)w, 1);	1317	ev_start (EV_A_ (W)w, 1);
1214	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1318	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1215	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1319	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1216		1320
1217	fd_change (EV_A_ fd);	1321	fd_change (EV_A_ fd);
1218	}	1322	}
1219		1323
…		…
1222	{	1326	{
1223	ev_clear_pending (EV_A_ (W)w);	1327	ev_clear_pending (EV_A_ (W)w);
1224	if (!ev_is_active (w))	1328	if (!ev_is_active (w))
1225	return;	1329	return;
1226		1330
		1331	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1332
1227	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1333	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1228	ev_stop (EV_A_ (W)w);	1334	ev_stop (EV_A_ (W)w);
1229		1335
1230	fd_change (EV_A_ w->fd);	1336	fd_change (EV_A_ w->fd);
1231	}	1337	}
…		…
1239	((WT)w)->at += mn_now;	1345	((WT)w)->at += mn_now;
1240		1346
1241	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.));
1242		1348
1243	ev_start (EV_A_ (W)w, ++timercnt);	1349	ev_start (EV_A_ (W)w, ++timercnt);
1244	array_needsize (timers, timermax, timercnt, (void));	1350	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1245	timers [timercnt - 1] = w;	1351	timers [timercnt - 1] = w;
1246	upheap ((WT *)timers, timercnt - 1);	1352	upheap ((WT *)timers, timercnt - 1);
1247		1353
1248	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1354	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1249	}	1355	}
…		…
1258	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1364	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1259		1365
1260	if (((W)w)->active < timercnt--)	1366	if (((W)w)->active < timercnt--)
1261	{	1367	{
1262	timers [((W)w)->active - 1] = timers [timercnt];	1368	timers [((W)w)->active - 1] = timers [timercnt];
1263	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1369	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1264	}	1370	}
1265		1371
1266	((WT)w)->at = w->repeat;	1372	((WT)w)->at -= mn_now;
1267		1373
1268	ev_stop (EV_A_ (W)w);	1374	ev_stop (EV_A_ (W)w);
1269	}	1375	}
1270		1376
1271	void	1377	void
…		…
1274	if (ev_is_active (w))	1380	if (ev_is_active (w))
1275	{	1381	{
1276	if (w->repeat)	1382	if (w->repeat)
1277	{	1383	{
1278	((WT)w)->at = mn_now + w->repeat;	1384	((WT)w)->at = mn_now + w->repeat;
1279	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1385	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1280	}	1386	}
1281	else	1387	else
1282	ev_timer_stop (EV_A_ w);	1388	ev_timer_stop (EV_A_ w);
1283	}	1389	}
1284	else if (w->repeat)	1390	else if (w->repeat)
		1391	{
		1392	w->at = w->repeat;
1285	ev_timer_start (EV_A_ w);	1393	ev_timer_start (EV_A_ w);
		1394	}
1286	}	1395	}
1287		1396
		1397	#if EV_PERIODICS
1288	void	1398	void
1289	ev_periodic_start (EV_P_ struct ev_periodic *w)	1399	ev_periodic_start (EV_P_ struct ev_periodic *w)
1290	{	1400	{
1291	if (ev_is_active (w))	1401	if (ev_is_active (w))
1292	return;	1402	return;
1293		1403
		1404	if (w->reschedule_cb)
		1405	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1406	else if (w->interval)
		1407	{
1294	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.));
1295
1296	/* 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 */
1297	if (w->interval)
1298	((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	}
1299		1412
1300	ev_start (EV_A_ (W)w, ++periodiccnt);	1413	ev_start (EV_A_ (W)w, ++periodiccnt);
1301	array_needsize (periodics, periodicmax, periodiccnt, (void));	1414	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1302	periodics [periodiccnt - 1] = w;	1415	periodics [periodiccnt - 1] = w;
1303	upheap ((WT *)periodics, periodiccnt - 1);	1416	upheap ((WT *)periodics, periodiccnt - 1);
1304		1417
1305	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1418	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1306	}	1419	}
…		…
1315	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1428	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1316		1429
1317	if (((W)w)->active < periodiccnt--)	1430	if (((W)w)->active < periodiccnt--)
1318	{	1431	{
1319	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1432	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1320	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1433	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1321	}	1434	}
1322		1435
1323	ev_stop (EV_A_ (W)w);	1436	ev_stop (EV_A_ (W)w);
1324	}	1437	}
1325		1438
1326	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
1327	ev_idle_start (EV_P_ struct ev_idle *w)	1449	ev_idle_start (EV_P_ struct ev_idle *w)
1328	{	1450	{
1329	if (ev_is_active (w))	1451	if (ev_is_active (w))
1330	return;	1452	return;
1331		1453
1332	ev_start (EV_A_ (W)w, ++idlecnt);	1454	ev_start (EV_A_ (W)w, ++idlecnt);
1333	array_needsize (idles, idlemax, idlecnt, (void));	1455	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1334	idles [idlecnt - 1] = w;	1456	idles [idlecnt - 1] = w;
1335	}	1457	}
1336		1458
1337	void	1459	void
1338	ev_idle_stop (EV_P_ struct ev_idle *w)	1460	ev_idle_stop (EV_P_ struct ev_idle *w)
1339	{	1461	{
1340	ev_clear_pending (EV_A_ (W)w);	1462	ev_clear_pending (EV_A_ (W)w);
1341	if (ev_is_active (w))	1463	if (!ev_is_active (w))
1342	return;	1464	return;
1343		1465
1344	idles [((W)w)->active - 1] = idles [--idlecnt];	1466	idles [((W)w)->active - 1] = idles [--idlecnt];
1345	ev_stop (EV_A_ (W)w);	1467	ev_stop (EV_A_ (W)w);
1346	}	1468	}
…		…
1350	{	1472	{
1351	if (ev_is_active (w))	1473	if (ev_is_active (w))
1352	return;	1474	return;
1353		1475
1354	ev_start (EV_A_ (W)w, ++preparecnt);	1476	ev_start (EV_A_ (W)w, ++preparecnt);
1355	array_needsize (prepares, preparemax, preparecnt, (void));	1477	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1356	prepares [preparecnt - 1] = w;	1478	prepares [preparecnt - 1] = w;
1357	}	1479	}
1358		1480
1359	void	1481	void
1360	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1482	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1361	{	1483	{
1362	ev_clear_pending (EV_A_ (W)w);	1484	ev_clear_pending (EV_A_ (W)w);
1363	if (ev_is_active (w))	1485	if (!ev_is_active (w))
1364	return;	1486	return;
1365		1487
1366	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1488	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1367	ev_stop (EV_A_ (W)w);	1489	ev_stop (EV_A_ (W)w);
1368	}	1490	}
…		…
1372	{	1494	{
1373	if (ev_is_active (w))	1495	if (ev_is_active (w))
1374	return;	1496	return;
1375		1497
1376	ev_start (EV_A_ (W)w, ++checkcnt);	1498	ev_start (EV_A_ (W)w, ++checkcnt);
1377	array_needsize (checks, checkmax, checkcnt, (void));	1499	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1378	checks [checkcnt - 1] = w;	1500	checks [checkcnt - 1] = w;
1379	}	1501	}
1380		1502
1381	void	1503	void
1382	ev_check_stop (EV_P_ struct ev_check *w)	1504	ev_check_stop (EV_P_ struct ev_check *w)
1383	{	1505	{
1384	ev_clear_pending (EV_A_ (W)w);	1506	ev_clear_pending (EV_A_ (W)w);
1385	if (ev_is_active (w))	1507	if (!ev_is_active (w))
1386	return;	1508	return;
1387		1509
1388	checks [((W)w)->active - 1] = checks [--checkcnt];	1510	checks [((W)w)->active - 1] = checks [--checkcnt];
1389	ev_stop (EV_A_ (W)w);	1511	ev_stop (EV_A_ (W)w);
1390	}	1512	}
…		…
1395		1517
1396	void	1518	void
1397	ev_signal_start (EV_P_ struct ev_signal *w)	1519	ev_signal_start (EV_P_ struct ev_signal *w)
1398	{	1520	{
1399	#if EV_MULTIPLICITY	1521	#if EV_MULTIPLICITY
1400	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));
1401	#endif	1523	#endif
1402	if (ev_is_active (w))	1524	if (ev_is_active (w))
1403	return;	1525	return;
1404		1526
1405	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));
1406		1528
1407	ev_start (EV_A_ (W)w, 1);	1529	ev_start (EV_A_ (W)w, 1);
1408	array_needsize (signals, signalmax, w->signum, signals_init);	1530	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1409	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1531	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1410		1532
1411	if (!((WL)w)->next)	1533	if (!((WL)w)->next)
1412	{	1534	{
1413	#if WIN32	1535	#if _WIN32
1414	signal (w->signum, sighandler);	1536	signal (w->signum, sighandler);
1415	#else	1537	#else
1416	struct sigaction sa;	1538	struct sigaction sa;
1417	sa.sa_handler = sighandler;	1539	sa.sa_handler = sighandler;
1418	sigfillset (&sa.sa_mask);	1540	sigfillset (&sa.sa_mask);
…		…
1438		1560
1439	void	1561	void
1440	ev_child_start (EV_P_ struct ev_child *w)	1562	ev_child_start (EV_P_ struct ev_child *w)
1441	{	1563	{
1442	#if EV_MULTIPLICITY	1564	#if EV_MULTIPLICITY
1443	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));
1444	#endif	1566	#endif
1445	if (ev_is_active (w))	1567	if (ev_is_active (w))
1446	return;	1568	return;
1447		1569
1448	ev_start (EV_A_ (W)w, 1);	1570	ev_start (EV_A_ (W)w, 1);
…		…
1451		1573
1452	void	1574	void
1453	ev_child_stop (EV_P_ struct ev_child *w)	1575	ev_child_stop (EV_P_ struct ev_child *w)
1454	{	1576	{
1455	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1456	if (ev_is_active (w))	1578	if (!ev_is_active (w))
1457	return;	1579	return;
1458		1580
1459	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1581	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1460	ev_stop (EV_A_ (W)w);	1582	ev_stop (EV_A_ (W)w);
1461	}	1583	}
…		…
1496	}	1618	}
1497		1619
1498	void	1620	void
1499	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)
1500	{	1622	{
1501	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1623	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1502		1624
1503	if (!once)	1625	if (!once)
1504	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1626	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1505	else	1627	else
1506	{	1628	{
1507	once->cb = cb;	1629	once->cb = cb;
1508	once->arg = arg;	1630	once->arg = arg;
1509		1631
1510	ev_watcher_init (&once->io, once_cb_io);	1632	ev_init (&once->io, once_cb_io);
1511	if (fd >= 0)	1633	if (fd >= 0)
1512	{	1634	{
1513	ev_io_set (&once->io, fd, events);	1635	ev_io_set (&once->io, fd, events);
1514	ev_io_start (EV_A_ &once->io);	1636	ev_io_start (EV_A_ &once->io);
1515	}	1637	}
1516		1638
1517	ev_watcher_init (&once->to, once_cb_to);	1639	ev_init (&once->to, once_cb_to);
1518	if (timeout >= 0.)	1640	if (timeout >= 0.)
1519	{	1641	{
1520	ev_timer_set (&once->to, timeout, 0.);	1642	ev_timer_set (&once->to, timeout, 0.);
1521	ev_timer_start (EV_A_ &once->to);	1643	ev_timer_start (EV_A_ &once->to);
1522	}	1644	}
1523	}	1645	}
1524	}	1646	}
1525		1647
		1648	#ifdef __cplusplus
		1649	}
		1650	#endif
		1651

Diff Legend

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

Comparing libev/ev.c (file contents): Revision 1.73 by root, Tue Nov 6 16:27:10 2007 UTC vs. Revision 1.117 by ayin, Thu Nov 15 17:15:56 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.73 by root, Tue Nov 6 16:27:10 2007 UTC vs.
Revision 1.117 by ayin, Thu Nov 15 17:15:56 2007 UTC