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

Comparing libev/ev.c (file contents):
Revision 1.84 by root, Fri Nov 9 23:04:35 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 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
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
37	# endif	53	# endif
38		54
		55	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
41	# endif	61	# endif
42		62
		63	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
45	# endif	69	# endif
46		70
		71	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
49	# endif	77	# endif
50		78
		79	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
53	# endif	93	# endif
54		94
55	#endif	95	#endif
56		96
57	#include <math.h>	97	#include <math.h>
…		…
66	#include <sys/types.h>	106	#include <sys/types.h>
67	#include <time.h>	107	#include <time.h>
68		108
69	#include <signal.h>	109	#include <signal.h>
70		110
71	#ifndef WIN32	111	#ifndef _WIN32
72	# include <unistd.h>	112	# include <unistd.h>
73	# include <sys/time.h>	113	# include <sys/time.h>
74	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	120	# endif
		121	#endif
		122
76	/**/	123	/**/
77		124
78	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
80	#endif	131	#endif
81		132
82	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
84	#endif	135	#endif
85		136
86	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
88	#endif	143	#endif
89		144
90	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
92	#endif	147	#endif
93		148
94	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
96	#endif	151	#endif
97		152
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	153	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
110	#endif	155	#endif
111		156
112	/**/	157	/**/
		158
		159	/* darwin simply cannot be helped */
		160	#ifdef __APPLE__
		161	# undef EV_USE_POLL
		162	# undef EV_USE_KQUEUE
		163	#endif
113		164
114	#ifndef CLOCK_MONOTONIC	165	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	166	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	167	# define EV_USE_MONOTONIC 0
117	#endif	168	#endif
…		…
119	#ifndef CLOCK_REALTIME	170	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	171	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	172	# define EV_USE_REALTIME 0
122	#endif	173	#endif
123		174
		175	#if EV_SELECT_IS_WINSOCKET
		176	# include <winsock.h>
		177	#endif
		178
124	/**/	179	/**/
125		180
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	181	#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) */	182	#define MAX_BLOCKTIME 59.743 /* 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 */	183	#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 */	184	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		185
131	#ifdef EV_H	186	#ifdef EV_H
132	# include EV_H	187	# include EV_H
133	#else	188	#else
134	# include "ev.h"	189	# include "ev.h"
135	#endif	190	#endif
136		191
137	#if __GNUC__ >= 3	192	#if __GNUC__ >= 3
138	# define expect(expr,value) __builtin_expect ((expr),(value))	193	# define expect(expr,value) __builtin_expect ((expr),(value))
139	# define inline inline	194	# define inline static inline
140	#else	195	#else
141	# define expect(expr,value) (expr)	196	# define expect(expr,value) (expr)
142	# define inline static	197	# define inline static
143	#endif	198	#endif
144		199
…		…
146	#define expect_true(expr) expect ((expr) != 0, 1)	201	#define expect_true(expr) expect ((expr) != 0, 1)
147		202
148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	203	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	204	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
150		205
		206	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		207	#define EMPTY2(a,b) /* used to suppress some warnings */
		208
151	typedef struct ev_watcher *W;	209	typedef struct ev_watcher *W;
152	typedef struct ev_watcher_list *WL;	210	typedef struct ev_watcher_list *WL;
153	typedef struct ev_watcher_time *WT;	211	typedef struct ev_watcher_time *WT;
154		212
155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	213	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156		214
		215	#ifdef _WIN32
157	#include "ev_win32.c"	216	# include "ev_win32.c"
		217	#endif
158		218
159	/*****************************************************************************/	219	/*****************************************************************************/
160		220
161	static void (syserr_cb)(const char msg);	221	static void (syserr_cb)(const char msg);
162		222
…		…
209	typedef struct	269	typedef struct
210	{	270	{
211	WL head;	271	WL head;
212	unsigned char events;	272	unsigned char events;
213	unsigned char reify;	273	unsigned char reify;
		274	#if EV_SELECT_IS_WINSOCKET
		275	SOCKET handle;
		276	#endif
214	} ANFD;	277	} ANFD;
215		278
216	typedef struct	279	typedef struct
217	{	280	{
218	W w;	281	W w;
…		…
221		284
222	#if EV_MULTIPLICITY	285	#if EV_MULTIPLICITY
223		286
224	struct ev_loop	287	struct ev_loop
225	{	288	{
		289	ev_tstamp ev_rt_now;
		290	#define ev_rt_now ((loop)->ev_rt_now)
226	#define VAR(name,decl) decl;	291	#define VAR(name,decl) decl;
227	#include "ev_vars.h"	292	#include "ev_vars.h"
228	#undef VAR	293	#undef VAR
229	};	294	};
230	#include "ev_wrap.h"	295	#include "ev_wrap.h"
231		296
232	struct ev_loop default_loop_struct;	297	static struct ev_loop default_loop_struct;
233	static struct ev_loop *default_loop;	298	struct ev_loop *ev_default_loop_ptr;
234		299
235	#else	300	#else
236		301
		302	ev_tstamp ev_rt_now;
237	#define VAR(name,decl) static decl;	303	#define VAR(name,decl) static decl;
238	#include "ev_vars.h"	304	#include "ev_vars.h"
239	#undef VAR	305	#undef VAR
240		306
241	static int default_loop;	307	static int ev_default_loop_ptr;
242		308
243	#endif	309	#endif
244		310
245	/*****************************************************************************/	311	/*****************************************************************************/
246		312
247	inline ev_tstamp	313	ev_tstamp
248	ev_time (void)	314	ev_time (void)
249	{	315	{
250	#if EV_USE_REALTIME	316	#if EV_USE_REALTIME
251	struct timespec ts;	317	struct timespec ts;
252	clock_gettime (CLOCK_REALTIME, &ts);	318	clock_gettime (CLOCK_REALTIME, &ts);
…		…
271	#endif	337	#endif
272		338
273	return ev_time ();	339	return ev_time ();
274	}	340	}
275		341
		342	#if EV_MULTIPLICITY
276	ev_tstamp	343	ev_tstamp
277	ev_now (EV_P)	344	ev_now (EV_P)
278	{	345	{
279	return rt_now;	346	return ev_rt_now;
280	}	347	}
		348	#endif
281		349
282	#define array_roundsize(type,n) ((n) \| 4 & ~3)	350	#define array_roundsize(type,n) (((n) \| 4) & ~3)
283		351
284	#define array_needsize(type,base,cur,cnt,init) \	352	#define array_needsize(type,base,cur,cnt,init) \
285	if (expect_false ((cnt) > cur)) \	353	if (expect_false ((cnt) > cur)) \
286	{ \	354	{ \
287	int newcnt = cur; \	355	int newcnt = cur; \
…		…
302	stem ## max = array_roundsize (stem ## cnt >> 1); \	370	stem ## max = array_roundsize (stem ## cnt >> 1); \
303	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	371	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
304	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	372	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
305	}	373	}
306		374
307	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
308	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
309	#define array_free_microshit(stem) \
310	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
311
312	#define array_free(stem, idx) \	375	#define array_free(stem, idx) \
313	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	376	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
314		377
315	/*****************************************************************************/	378	/*****************************************************************************/
316		379
…		…
330	void	393	void
331	ev_feed_event (EV_P_ void *w, int revents)	394	ev_feed_event (EV_P_ void *w, int revents)
332	{	395	{
333	W w_ = (W)w;	396	W w_ = (W)w;
334		397
335	if (w_->pending)	398	if (expect_false (w_->pending))
336	{	399	{
337	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	400	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
338	return;	401	return;
339	}	402	}
340		403
341	w_->pending = ++pendingcnt [ABSPRI (w_)];	404	w_->pending = ++pendingcnt [ABSPRI (w_)];
342	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	405	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	406	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	407	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
345	}	408	}
346		409
347	static void	410	static void
…		…
374	fd_event (EV_A_ fd, revents);	437	fd_event (EV_A_ fd, revents);
375	}	438	}
376		439
377	/*****************************************************************************/	440	/*****************************************************************************/
378		441
379	static void	442	inline void
380	fd_reify (EV_P)	443	fd_reify (EV_P)
381	{	444	{
382	int i;	445	int i;
383		446
384	for (i = 0; i < fdchangecnt; ++i)	447	for (i = 0; i < fdchangecnt; ++i)
…		…
390	int events = 0;	453	int events = 0;
391		454
392	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	455	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
393	events \|= w->events;	456	events \|= w->events;
394		457
		458	#if EV_SELECT_IS_WINSOCKET
		459	if (events)
		460	{
		461	unsigned long argp;
		462	anfd->handle = _get_osfhandle (fd);
		463	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		464	}
		465	#endif
		466
395	anfd->reify = 0;	467	anfd->reify = 0;
396		468
397	method_modify (EV_A_ fd, anfd->events, events);	469	method_modify (EV_A_ fd, anfd->events, events);
398	anfd->events = events;	470	anfd->events = events;
399	}	471	}
…		…
402	}	474	}
403		475
404	static void	476	static void
405	fd_change (EV_P_ int fd)	477	fd_change (EV_P_ int fd)
406	{	478	{
407	if (anfds [fd].reify)	479	if (expect_false (anfds [fd].reify))
408	return;	480	return;
409		481
410	anfds [fd].reify = 1;	482	anfds [fd].reify = 1;
411		483
412	++fdchangecnt;	484	++fdchangecnt;
413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	485	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
414	fdchanges [fdchangecnt - 1] = fd;	486	fdchanges [fdchangecnt - 1] = fd;
415	}	487	}
416		488
417	static void	489	static void
418	fd_kill (EV_P_ int fd)	490	fd_kill (EV_P_ int fd)
…		…
424	ev_io_stop (EV_A_ w);	496	ev_io_stop (EV_A_ w);
425	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	497	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
426	}	498	}
427	}	499	}
428		500
429	static int	501	inline int
430	fd_valid (int fd)	502	fd_valid (int fd)
431	{	503	{
432	#ifdef WIN32	504	#ifdef _WIN32
433	return !!win32_get_osfhandle (fd);	505	return _get_osfhandle (fd) != -1;
434	#else	506	#else
435	return fcntl (fd, F_GETFD) != -1;	507	return fcntl (fd, F_GETFD) != -1;
436	#endif	508	#endif
437	}	509	}
438		510
…		…
519	heap [k] = w;	591	heap [k] = w;
520	((W)heap [k])->active = k + 1;	592	((W)heap [k])->active = k + 1;
521	}	593	}
522		594
523	inline void	595	inline void
524	adjustheap (WT *heap, int N, int k, ev_tstamp at)	596	adjustheap (WT *heap, int N, int k)
525	{	597	{
526	ev_tstamp old_at = heap [k]->at;	598	upheap (heap, k);
527	heap [k]->at = at;
528
529	if (old_at < at)
530	downheap (heap, N, k);	599	downheap (heap, N, k);
531	else
532	upheap (heap, k);
533	}	600	}
534		601
535	/*****************************************************************************/	602	/*****************************************************************************/
536		603
537	typedef struct	604	typedef struct
…		…
560	}	627	}
561		628
562	static void	629	static void
563	sighandler (int signum)	630	sighandler (int signum)
564	{	631	{
565	#if WIN32	632	#if _WIN32
566	signal (signum, sighandler);	633	signal (signum, sighandler);
567	#endif	634	#endif
568		635
569	signals [signum - 1].gotsig = 1;	636	signals [signum - 1].gotsig = 1;
570		637
571	if (!gotsig)	638	if (!gotsig)
572	{	639	{
573	int old_errno = errno;	640	int old_errno = errno;
574	gotsig = 1;	641	gotsig = 1;
575	#ifdef WIN32
576	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
577	#else
578	write (sigpipe [1], &signum, 1);	642	write (sigpipe [1], &signum, 1);
579	#endif
580	errno = old_errno;	643	errno = old_errno;
581	}	644	}
582	}	645	}
583		646
584	void	647	void
585	ev_feed_signal_event (EV_P_ int signum)	648	ev_feed_signal_event (EV_P_ int signum)
586	{	649	{
587	WL w;	650	WL w;
588		651
589	#if EV_MULTIPLICITY	652	#if EV_MULTIPLICITY
590	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	653	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
591	#endif	654	#endif
592		655
593	--signum;	656	--signum;
594		657
595	if (signum < 0 \|\| signum >= signalmax)	658	if (signum < 0 \|\| signum >= signalmax)
…		…
604	static void	667	static void
605	sigcb (EV_P_ struct ev_io *iow, int revents)	668	sigcb (EV_P_ struct ev_io *iow, int revents)
606	{	669	{
607	int signum;	670	int signum;
608		671
609	#ifdef WIN32
610	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
611	#else
612	read (sigpipe [0], &revents, 1);	672	read (sigpipe [0], &revents, 1);
613	#endif
614	gotsig = 0;	673	gotsig = 0;
615		674
616	for (signum = signalmax; signum--; )	675	for (signum = signalmax; signum--; )
617	if (signals [signum].gotsig)	676	if (signals [signum].gotsig)
618	ev_feed_signal_event (EV_A_ signum + 1);	677	ev_feed_signal_event (EV_A_ signum + 1);
619	}	678	}
620		679
621	static void	680	static void
		681	fd_intern (int fd)
		682	{
		683	#ifdef _WIN32
		684	int arg = 1;
		685	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		686	#else
		687	fcntl (fd, F_SETFD, FD_CLOEXEC);
		688	fcntl (fd, F_SETFL, O_NONBLOCK);
		689	#endif
		690	}
		691
		692	static void
622	siginit (EV_P)	693	siginit (EV_P)
623	{	694	{
624	#ifndef WIN32	695	fd_intern (sigpipe [0]);
625	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	696	fd_intern (sigpipe [1]);
626	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
627
628	/* rather than sort out wether we really need nb, set it */
629	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
630	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
631	#endif
632		697
633	ev_io_set (&sigev, sigpipe [0], EV_READ);	698	ev_io_set (&sigev, sigpipe [0], EV_READ);
634	ev_io_start (EV_A_ &sigev);	699	ev_io_start (EV_A_ &sigev);
635	ev_unref (EV_A); /* child watcher should not keep loop alive */	700	ev_unref (EV_A); /* child watcher should not keep loop alive */
636	}	701	}
637		702
638	/*****************************************************************************/	703	/*****************************************************************************/
639		704
640	static struct ev_child *childs [PID_HASHSIZE];	705	static struct ev_child *childs [PID_HASHSIZE];
641		706
642	#ifndef WIN32	707	#ifndef _WIN32
643		708
644	static struct ev_signal childev;	709	static struct ev_signal childev;
645		710
646	#ifndef WCONTINUED	711	#ifndef WCONTINUED
647	# define WCONTINUED 0	712	# define WCONTINUED 0
…		…
679		744
680	#endif	745	#endif
681		746
682	/*****************************************************************************/	747	/*****************************************************************************/
683		748
		749	#if EV_USE_PORT
		750	# include "ev_port.c"
		751	#endif
684	#if EV_USE_KQUEUE	752	#if EV_USE_KQUEUE
685	# include "ev_kqueue.c"	753	# include "ev_kqueue.c"
686	#endif	754	#endif
687	#if EV_USE_EPOLL	755	#if EV_USE_EPOLL
688	# include "ev_epoll.c"	756	# include "ev_epoll.c"
…		…
708		776
709	/* return true if we are running with elevated privileges and should ignore env variables */	777	/* return true if we are running with elevated privileges and should ignore env variables */
710	static int	778	static int
711	enable_secure (void)	779	enable_secure (void)
712	{	780	{
713	#ifdef WIN32	781	#ifdef _WIN32
714	return 0;	782	return 0;
715	#else	783	#else
716	return getuid () != geteuid ()	784	return getuid () != geteuid ()
717	\|\| getgid () != getegid ();	785	\|\| getgid () != getegid ();
718	#endif	786	#endif
719	}	787	}
720		788
721	int	789	unsigned int
722	ev_method (EV_P)	790	ev_method (EV_P)
723	{	791	{
724	return method;	792	return method;
725	}	793	}
726		794
727	static void	795	static void
728	loop_init (EV_P_ int methods)	796	loop_init (EV_P_ unsigned int flags)
729	{	797	{
730	if (!method)	798	if (!method)
731	{	799	{
732	#if EV_USE_MONOTONIC	800	#if EV_USE_MONOTONIC
733	{	801	{
…		…
735	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	803	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
736	have_monotonic = 1;	804	have_monotonic = 1;
737	}	805	}
738	#endif	806	#endif
739		807
740	rt_now = ev_time ();	808	ev_rt_now = ev_time ();
741	mn_now = get_clock ();	809	mn_now = get_clock ();
742	now_floor = mn_now;	810	now_floor = mn_now;
743	rtmn_diff = rt_now - mn_now;	811	rtmn_diff = ev_rt_now - mn_now;
744		812
745	if (methods == EVMETHOD_AUTO)	813	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
746	if (!enable_secure () && getenv ("LIBEV_METHODS"))
747	methods = atoi (getenv ("LIBEV_METHODS"));	814	flags = atoi (getenv ("LIBEV_FLAGS"));
748	else	815
749	methods = EVMETHOD_ANY;	816	if (!(flags & 0x0000ffff))
		817	flags \|= 0x0000ffff;
750		818
751	method = 0;	819	method = 0;
752	#if EV_USE_WIN32	820	#if EV_USE_PORT
753	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	821	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
754	#endif	822	#endif
755	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
756	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	824	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
757	#endif	825	#endif
758	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
759	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	827	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
760	#endif	828	#endif
761	#if EV_USE_POLL	829	#if EV_USE_POLL
762	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	830	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
763	#endif	831	#endif
764	#if EV_USE_SELECT	832	#if EV_USE_SELECT
765	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	833	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
766	#endif	834	#endif
767		835
768	ev_init (&sigev, sigcb);	836	ev_init (&sigev, sigcb);
769	ev_set_priority (&sigev, EV_MAXPRI);	837	ev_set_priority (&sigev, EV_MAXPRI);
770	}	838	}
771	}	839	}
772		840
773	void	841	static void
774	loop_destroy (EV_P)	842	loop_destroy (EV_P)
775	{	843	{
776	int i;	844	int i;
777		845
778	#if EV_USE_WIN32	846	#if EV_USE_PORT
779	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	847	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
780	#endif	848	#endif
781	#if EV_USE_KQUEUE	849	#if EV_USE_KQUEUE
782	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	850	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
783	#endif	851	#endif
784	#if EV_USE_EPOLL	852	#if EV_USE_EPOLL
…		…
793		861
794	for (i = NUMPRI; i--; )	862	for (i = NUMPRI; i--; )
795	array_free (pending, [i]);	863	array_free (pending, [i]);
796		864
797	/* have to use the microsoft-never-gets-it-right macro */	865	/* have to use the microsoft-never-gets-it-right macro */
798	array_free_microshit (fdchange);	866	array_free (fdchange, EMPTY0);
799	array_free_microshit (timer);	867	array_free (timer, EMPTY0);
800	array_free_microshit (periodic);	868	#if EV_PERIODICS
801	array_free_microshit (idle);	869	array_free (periodic, EMPTY0);
802	array_free_microshit (prepare);	870	#endif
803	array_free_microshit (check);	871	array_free (idle, EMPTY0);
		872	array_free (prepare, EMPTY0);
		873	array_free (check, EMPTY0);
804		874
805	method = 0;	875	method = 0;
806	}	876	}
807		877
808	static void	878	static void
809	loop_fork (EV_P)	879	loop_fork (EV_P)
810	{	880	{
		881	#if EV_USE_PORT
		882	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		883	#endif
		884	#if EV_USE_KQUEUE
		885	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		886	#endif
811	#if EV_USE_EPOLL	887	#if EV_USE_EPOLL
812	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	888	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
813	#endif
814	#if EV_USE_KQUEUE
815	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
816	#endif	889	#endif
817		890
818	if (ev_is_active (&sigev))	891	if (ev_is_active (&sigev))
819	{	892	{
820	/* default loop */	893	/* default loop */
…		…
833	postfork = 0;	906	postfork = 0;
834	}	907	}
835		908
836	#if EV_MULTIPLICITY	909	#if EV_MULTIPLICITY
837	struct ev_loop *	910	struct ev_loop *
838	ev_loop_new (int methods)	911	ev_loop_new (unsigned int flags)
839	{	912	{
840	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	913	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
841		914
842	memset (loop, 0, sizeof (struct ev_loop));	915	memset (loop, 0, sizeof (struct ev_loop));
843		916
844	loop_init (EV_A_ methods);	917	loop_init (EV_A_ flags);
845		918
846	if (ev_method (EV_A))	919	if (ev_method (EV_A))
847	return loop;	920	return loop;
848		921
849	return 0;	922	return 0;
…		…
864		937
865	#endif	938	#endif
866		939
867	#if EV_MULTIPLICITY	940	#if EV_MULTIPLICITY
868	struct ev_loop *	941	struct ev_loop *
		942	ev_default_loop_init (unsigned int flags)
869	#else	943	#else
870	int	944	int
		945	ev_default_loop (unsigned int flags)
871	#endif	946	#endif
872	ev_default_loop (int methods)
873	{	947	{
874	if (sigpipe [0] == sigpipe [1])	948	if (sigpipe [0] == sigpipe [1])
875	if (pipe (sigpipe))	949	if (pipe (sigpipe))
876	return 0;	950	return 0;
877		951
878	if (!default_loop)	952	if (!ev_default_loop_ptr)
879	{	953	{
880	#if EV_MULTIPLICITY	954	#if EV_MULTIPLICITY
881	struct ev_loop *loop = default_loop = &default_loop_struct;	955	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
882	#else	956	#else
883	default_loop = 1;	957	ev_default_loop_ptr = 1;
884	#endif	958	#endif
885		959
886	loop_init (EV_A_ methods);	960	loop_init (EV_A_ flags);
887		961
888	if (ev_method (EV_A))	962	if (ev_method (EV_A))
889	{	963	{
890	siginit (EV_A);	964	siginit (EV_A);
891		965
892	#ifndef WIN32	966	#ifndef _WIN32
893	ev_signal_init (&childev, childcb, SIGCHLD);	967	ev_signal_init (&childev, childcb, SIGCHLD);
894	ev_set_priority (&childev, EV_MAXPRI);	968	ev_set_priority (&childev, EV_MAXPRI);
895	ev_signal_start (EV_A_ &childev);	969	ev_signal_start (EV_A_ &childev);
896	ev_unref (EV_A); /* child watcher should not keep loop alive */	970	ev_unref (EV_A); /* child watcher should not keep loop alive */
897	#endif	971	#endif
898	}	972	}
899	else	973	else
900	default_loop = 0;	974	ev_default_loop_ptr = 0;
901	}	975	}
902		976
903	return default_loop;	977	return ev_default_loop_ptr;
904	}	978	}
905		979
906	void	980	void
907	ev_default_destroy (void)	981	ev_default_destroy (void)
908	{	982	{
909	#if EV_MULTIPLICITY	983	#if EV_MULTIPLICITY
910	struct ev_loop *loop = default_loop;	984	struct ev_loop *loop = ev_default_loop_ptr;
911	#endif	985	#endif
912		986
913	#ifndef WIN32	987	#ifndef _WIN32
914	ev_ref (EV_A); /* child watcher */	988	ev_ref (EV_A); /* child watcher */
915	ev_signal_stop (EV_A_ &childev);	989	ev_signal_stop (EV_A_ &childev);
916	#endif	990	#endif
917		991
918	ev_ref (EV_A); /* signal watcher */	992	ev_ref (EV_A); /* signal watcher */
…		…
926		1000
927	void	1001	void
928	ev_default_fork (void)	1002	ev_default_fork (void)
929	{	1003	{
930	#if EV_MULTIPLICITY	1004	#if EV_MULTIPLICITY
931	struct ev_loop *loop = default_loop;	1005	struct ev_loop *loop = ev_default_loop_ptr;
932	#endif	1006	#endif
933		1007
934	if (method)	1008	if (method)
935	postfork = 1;	1009	postfork = 1;
936	}	1010	}
…		…
947	return 1;	1021	return 1;
948		1022
949	return 0;	1023	return 0;
950	}	1024	}
951		1025
952	static void	1026	inline void
953	call_pending (EV_P)	1027	call_pending (EV_P)
954	{	1028	{
955	int pri;	1029	int pri;
956		1030
957	for (pri = NUMPRI; pri--; )	1031	for (pri = NUMPRI; pri--; )
958	while (pendingcnt [pri])	1032	while (pendingcnt [pri])
959	{	1033	{
960	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1034	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
961		1035
962	if (p->w)	1036	if (expect_true (p->w))
963	{	1037	{
964	p->w->pending = 0;	1038	p->w->pending = 0;
965	EV_CB_INVOKE (p->w, p->events);	1039	EV_CB_INVOKE (p->w, p->events);
966	}	1040	}
967	}	1041	}
968	}	1042	}
969		1043
970	static void	1044	inline void
971	timers_reify (EV_P)	1045	timers_reify (EV_P)
972	{	1046	{
973	while (timercnt && ((WT)timers [0])->at <= mn_now)	1047	while (timercnt && ((WT)timers [0])->at <= mn_now)
974	{	1048	{
975	struct ev_timer *w = timers [0];	1049	struct ev_timer *w = timers [0];
…		…
978		1052
979	/* first reschedule or stop timer */	1053	/* first reschedule or stop timer */
980	if (w->repeat)	1054	if (w->repeat)
981	{	1055	{
982	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1056	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1057
983	((WT)w)->at = mn_now + w->repeat;	1058	((WT)w)->at += w->repeat;
		1059	if (((WT)w)->at < mn_now)
		1060	((WT)w)->at = mn_now;
		1061
984	downheap ((WT *)timers, timercnt, 0);	1062	downheap ((WT *)timers, timercnt, 0);
985	}	1063	}
986	else	1064	else
987	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1065	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
988		1066
989	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1067	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
990	}	1068	}
991	}	1069	}
992		1070
993	static void	1071	#if EV_PERIODICS
		1072	inline void
994	periodics_reify (EV_P)	1073	periodics_reify (EV_P)
995	{	1074	{
996	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1075	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
997	{	1076	{
998	struct ev_periodic *w = periodics [0];	1077	struct ev_periodic *w = periodics [0];
999		1078
1000	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1079	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1001		1080
1002	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
1003	if (w->reschedule_cb)	1082	if (w->reschedule_cb)
1004	{	1083	{
1005	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1084	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1006
1007	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1085	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1008	downheap ((WT *)periodics, periodiccnt, 0);	1086	downheap ((WT *)periodics, periodiccnt, 0);
1009	}	1087	}
1010	else if (w->interval)	1088	else if (w->interval)
1011	{	1089	{
1012	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1090	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
1013	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1091	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1014	downheap ((WT *)periodics, periodiccnt, 0);	1092	downheap ((WT *)periodics, periodiccnt, 0);
1015	}	1093	}
1016	else	1094	else
1017	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1095	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1018		1096
…		…
1029	for (i = 0; i < periodiccnt; ++i)	1107	for (i = 0; i < periodiccnt; ++i)
1030	{	1108	{
1031	struct ev_periodic *w = periodics [i];	1109	struct ev_periodic *w = periodics [i];
1032		1110
1033	if (w->reschedule_cb)	1111	if (w->reschedule_cb)
1034	((WT)w)->at = w->reschedule_cb (w, rt_now);	1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1035	else if (w->interval)	1113	else if (w->interval)
1036	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1114	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1037	}	1115	}
1038		1116
1039	/* now rebuild the heap */	1117	/* now rebuild the heap */
1040	for (i = periodiccnt >> 1; i--; )	1118	for (i = periodiccnt >> 1; i--; )
1041	downheap ((WT *)periodics, periodiccnt, i);	1119	downheap ((WT *)periodics, periodiccnt, i);
1042	}	1120	}
		1121	#endif
1043		1122
1044	inline int	1123	inline int
1045	time_update_monotonic (EV_P)	1124	time_update_monotonic (EV_P)
1046	{	1125	{
1047	mn_now = get_clock ();	1126	mn_now = get_clock ();
1048		1127
1049	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1128	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1050	{	1129	{
1051	rt_now = rtmn_diff + mn_now;	1130	ev_rt_now = rtmn_diff + mn_now;
1052	return 0;	1131	return 0;
1053	}	1132	}
1054	else	1133	else
1055	{	1134	{
1056	now_floor = mn_now;	1135	now_floor = mn_now;
1057	rt_now = ev_time ();	1136	ev_rt_now = ev_time ();
1058	return 1;	1137	return 1;
1059	}	1138	}
1060	}	1139	}
1061		1140
1062	static void	1141	inline void
1063	time_update (EV_P)	1142	time_update (EV_P)
1064	{	1143	{
1065	int i;	1144	int i;
1066		1145
1067	#if EV_USE_MONOTONIC	1146	#if EV_USE_MONOTONIC
…		…
1071	{	1150	{
1072	ev_tstamp odiff = rtmn_diff;	1151	ev_tstamp odiff = rtmn_diff;
1073		1152
1074	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1153	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1075	{	1154	{
1076	rtmn_diff = rt_now - mn_now;	1155	rtmn_diff = ev_rt_now - mn_now;
1077		1156
1078	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1157	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1079	return; /* all is well */	1158	return; /* all is well */
1080		1159
1081	rt_now = ev_time ();	1160	ev_rt_now = ev_time ();
1082	mn_now = get_clock ();	1161	mn_now = get_clock ();
1083	now_floor = mn_now;	1162	now_floor = mn_now;
1084	}	1163	}
1085		1164
		1165	# if EV_PERIODICS
1086	periodics_reschedule (EV_A);	1166	periodics_reschedule (EV_A);
		1167	# endif
1087	/* no timer adjustment, as the monotonic clock doesn't jump */	1168	/* no timer adjustment, as the monotonic clock doesn't jump */
1088	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1169	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1089	}	1170	}
1090	}	1171	}
1091	else	1172	else
1092	#endif	1173	#endif
1093	{	1174	{
1094	rt_now = ev_time ();	1175	ev_rt_now = ev_time ();
1095		1176
1096	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1177	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1097	{	1178	{
		1179	#if EV_PERIODICS
1098	periodics_reschedule (EV_A);	1180	periodics_reschedule (EV_A);
		1181	#endif
1099		1182
1100	/* adjust timers. this is easy, as the offset is the same for all */	1183	/* adjust timers. this is easy, as the offset is the same for all */
1101	for (i = 0; i < timercnt; ++i)	1184	for (i = 0; i < timercnt; ++i)
1102	((WT)timers [i])->at += rt_now - mn_now;	1185	((WT)timers [i])->at += ev_rt_now - mn_now;
1103	}	1186	}
1104		1187
1105	mn_now = rt_now;	1188	mn_now = ev_rt_now;
1106	}	1189	}
1107	}	1190	}
1108		1191
1109	void	1192	void
1110	ev_ref (EV_P)	1193	ev_ref (EV_P)
…		…
1124	ev_loop (EV_P_ int flags)	1207	ev_loop (EV_P_ int flags)
1125	{	1208	{
1126	double block;	1209	double block;
1127	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1210	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1128		1211
1129	do	1212	while (activecnt)
1130	{	1213	{
1131	/* queue check watchers (and execute them) */	1214	/* queue check watchers (and execute them) */
1132	if (expect_false (preparecnt))	1215	if (expect_false (preparecnt))
1133	{	1216	{
1134	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1217	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1150	if (expect_true (have_monotonic))	1233	if (expect_true (have_monotonic))
1151	time_update_monotonic (EV_A);	1234	time_update_monotonic (EV_A);
1152	else	1235	else
1153	#endif	1236	#endif
1154	{	1237	{
1155	rt_now = ev_time ();	1238	ev_rt_now = ev_time ();
1156	mn_now = rt_now;	1239	mn_now = ev_rt_now;
1157	}	1240	}
1158		1241
1159	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1242	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1160	block = 0.;	1243	block = 0.;
1161	else	1244	else
…		…
1166	{	1249	{
1167	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1250	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1168	if (block > to) block = to;	1251	if (block > to) block = to;
1169	}	1252	}
1170		1253
		1254	#if EV_PERIODICS
1171	if (periodiccnt)	1255	if (periodiccnt)
1172	{	1256	{
1173	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1257	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1174	if (block > to) block = to;	1258	if (block > to) block = to;
1175	}	1259	}
		1260	#endif
1176		1261
1177	if (block < 0.) block = 0.;	1262	if (expect_false (block < 0.)) block = 0.;
1178	}	1263	}
1179		1264
1180	method_poll (EV_A_ block);	1265	method_poll (EV_A_ block);
1181		1266
1182	/* update rt_now, do magic */	1267	/* update ev_rt_now, do magic */
1183	time_update (EV_A);	1268	time_update (EV_A);
1184		1269
1185	/* queue pending timers and reschedule them */	1270	/* queue pending timers and reschedule them */
1186	timers_reify (EV_A); /* relative timers called last */	1271	timers_reify (EV_A); /* relative timers called last */
		1272	#if EV_PERIODICS
1187	periodics_reify (EV_A); /* absolute timers called first */	1273	periodics_reify (EV_A); /* absolute timers called first */
		1274	#endif
1188		1275
1189	/* queue idle watchers unless io or timers are pending */	1276	/* queue idle watchers unless io or timers are pending */
1190	if (idlecnt && !any_pending (EV_A))	1277	if (idlecnt && !any_pending (EV_A))
1191	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1278	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1192		1279
1193	/* queue check watchers, to be executed first */	1280	/* queue check watchers, to be executed first */
1194	if (checkcnt)	1281	if (expect_false (checkcnt))
1195	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1282	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1196		1283
1197	call_pending (EV_A);	1284	call_pending (EV_A);
		1285
		1286	if (expect_false (loop_done))
		1287	break;
1198	}	1288	}
1199	while (activecnt && !loop_done);
1200		1289
1201	if (loop_done != 2)	1290	if (loop_done != 2)
1202	loop_done = 0;	1291	loop_done = 0;
1203	}	1292	}
1204		1293
…		…
1264	void	1353	void
1265	ev_io_start (EV_P_ struct ev_io *w)	1354	ev_io_start (EV_P_ struct ev_io *w)
1266	{	1355	{
1267	int fd = w->fd;	1356	int fd = w->fd;
1268		1357
1269	if (ev_is_active (w))	1358	if (expect_false (ev_is_active (w)))
1270	return;	1359	return;
1271		1360
1272	assert (("ev_io_start called with negative fd", fd >= 0));	1361	assert (("ev_io_start called with negative fd", fd >= 0));
1273		1362
1274	ev_start (EV_A_ (W)w, 1);	1363	ev_start (EV_A_ (W)w, 1);
…		…
1280		1369
1281	void	1370	void
1282	ev_io_stop (EV_P_ struct ev_io *w)	1371	ev_io_stop (EV_P_ struct ev_io *w)
1283	{	1372	{
1284	ev_clear_pending (EV_A_ (W)w);	1373	ev_clear_pending (EV_A_ (W)w);
1285	if (!ev_is_active (w))	1374	if (expect_false (!ev_is_active (w)))
1286	return;	1375	return;
		1376
		1377	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1287		1378
1288	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1379	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1289	ev_stop (EV_A_ (W)w);	1380	ev_stop (EV_A_ (W)w);
1290		1381
1291	fd_change (EV_A_ w->fd);	1382	fd_change (EV_A_ w->fd);
1292	}	1383	}
1293		1384
1294	void	1385	void
1295	ev_timer_start (EV_P_ struct ev_timer *w)	1386	ev_timer_start (EV_P_ struct ev_timer *w)
1296	{	1387	{
1297	if (ev_is_active (w))	1388	if (expect_false (ev_is_active (w)))
1298	return;	1389	return;
1299		1390
1300	((WT)w)->at += mn_now;	1391	((WT)w)->at += mn_now;
1301		1392
1302	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1393	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1303		1394
1304	ev_start (EV_A_ (W)w, ++timercnt);	1395	ev_start (EV_A_ (W)w, ++timercnt);
1305	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1396	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1306	timers [timercnt - 1] = w;	1397	timers [timercnt - 1] = w;
1307	upheap ((WT *)timers, timercnt - 1);	1398	upheap ((WT *)timers, timercnt - 1);
1308		1399
1309	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1310	}	1401	}
1311		1402
1312	void	1403	void
1313	ev_timer_stop (EV_P_ struct ev_timer *w)	1404	ev_timer_stop (EV_P_ struct ev_timer *w)
1314	{	1405	{
1315	ev_clear_pending (EV_A_ (W)w);	1406	ev_clear_pending (EV_A_ (W)w);
1316	if (!ev_is_active (w))	1407	if (expect_false (!ev_is_active (w)))
1317	return;	1408	return;
1318		1409
1319	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1410	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1320		1411
1321	if (((W)w)->active < timercnt--)	1412	if (expect_true (((W)w)->active < timercnt--))
1322	{	1413	{
1323	timers [((W)w)->active - 1] = timers [timercnt];	1414	timers [((W)w)->active - 1] = timers [timercnt];
1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1415	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1325	}	1416	}
1326		1417
1327	((WT)w)->at = w->repeat;	1418	((WT)w)->at -= mn_now;
1328		1419
1329	ev_stop (EV_A_ (W)w);	1420	ev_stop (EV_A_ (W)w);
1330	}	1421	}
1331		1422
1332	void	1423	void
1333	ev_timer_again (EV_P_ struct ev_timer *w)	1424	ev_timer_again (EV_P_ struct ev_timer *w)
1334	{	1425	{
1335	if (ev_is_active (w))	1426	if (ev_is_active (w))
1336	{	1427	{
1337	if (w->repeat)	1428	if (w->repeat)
		1429	{
		1430	((WT)w)->at = mn_now + w->repeat;
1338	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1431	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1432	}
1339	else	1433	else
1340	ev_timer_stop (EV_A_ w);	1434	ev_timer_stop (EV_A_ w);
1341	}	1435	}
1342	else if (w->repeat)	1436	else if (w->repeat)
		1437	{
		1438	w->at = w->repeat;
1343	ev_timer_start (EV_A_ w);	1439	ev_timer_start (EV_A_ w);
		1440	}
1344	}	1441	}
1345		1442
		1443	#if EV_PERIODICS
1346	void	1444	void
1347	ev_periodic_start (EV_P_ struct ev_periodic *w)	1445	ev_periodic_start (EV_P_ struct ev_periodic *w)
1348	{	1446	{
1349	if (ev_is_active (w))	1447	if (expect_false (ev_is_active (w)))
1350	return;	1448	return;
1351		1449
1352	if (w->reschedule_cb)	1450	if (w->reschedule_cb)
1353	((WT)w)->at = w->reschedule_cb (w, rt_now);	1451	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1354	else if (w->interval)	1452	else if (w->interval)
1355	{	1453	{
1356	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1454	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1357	/* this formula differs from the one in periodic_reify because we do not always round up */	1455	/* this formula differs from the one in periodic_reify because we do not always round up */
1358	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1456	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1359	}	1457	}
1360		1458
1361	ev_start (EV_A_ (W)w, ++periodiccnt);	1459	ev_start (EV_A_ (W)w, ++periodiccnt);
1362	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1460	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1363	periodics [periodiccnt - 1] = w;	1461	periodics [periodiccnt - 1] = w;
1364	upheap ((WT *)periodics, periodiccnt - 1);	1462	upheap ((WT *)periodics, periodiccnt - 1);
1365		1463
1366	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1367	}	1465	}
1368		1466
1369	void	1467	void
1370	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1468	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1371	{	1469	{
1372	ev_clear_pending (EV_A_ (W)w);	1470	ev_clear_pending (EV_A_ (W)w);
1373	if (!ev_is_active (w))	1471	if (expect_false (!ev_is_active (w)))
1374	return;	1472	return;
1375		1473
1376	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1474	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1377		1475
1378	if (((W)w)->active < periodiccnt--)	1476	if (expect_true (((W)w)->active < periodiccnt--))
1379	{	1477	{
1380	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1478	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1381	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1479	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1382	}	1480	}
1383		1481
1384	ev_stop (EV_A_ (W)w);	1482	ev_stop (EV_A_ (W)w);
1385	}	1483	}
1386		1484
…		…
1389	{	1487	{
1390	/* TODO: use adjustheap and recalculation */	1488	/* TODO: use adjustheap and recalculation */
1391	ev_periodic_stop (EV_A_ w);	1489	ev_periodic_stop (EV_A_ w);
1392	ev_periodic_start (EV_A_ w);	1490	ev_periodic_start (EV_A_ w);
1393	}	1491	}
		1492	#endif
1394		1493
1395	void	1494	void
1396	ev_idle_start (EV_P_ struct ev_idle *w)	1495	ev_idle_start (EV_P_ struct ev_idle *w)
1397	{	1496	{
1398	if (ev_is_active (w))	1497	if (expect_false (ev_is_active (w)))
1399	return;	1498	return;
1400		1499
1401	ev_start (EV_A_ (W)w, ++idlecnt);	1500	ev_start (EV_A_ (W)w, ++idlecnt);
1402	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1501	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1403	idles [idlecnt - 1] = w;	1502	idles [idlecnt - 1] = w;
1404	}	1503	}
1405		1504
1406	void	1505	void
1407	ev_idle_stop (EV_P_ struct ev_idle *w)	1506	ev_idle_stop (EV_P_ struct ev_idle *w)
1408	{	1507	{
1409	ev_clear_pending (EV_A_ (W)w);	1508	ev_clear_pending (EV_A_ (W)w);
1410	if (ev_is_active (w))	1509	if (expect_false (!ev_is_active (w)))
1411	return;	1510	return;
1412		1511
1413	idles [((W)w)->active - 1] = idles [--idlecnt];	1512	idles [((W)w)->active - 1] = idles [--idlecnt];
1414	ev_stop (EV_A_ (W)w);	1513	ev_stop (EV_A_ (W)w);
1415	}	1514	}
1416		1515
1417	void	1516	void
1418	ev_prepare_start (EV_P_ struct ev_prepare *w)	1517	ev_prepare_start (EV_P_ struct ev_prepare *w)
1419	{	1518	{
1420	if (ev_is_active (w))	1519	if (expect_false (ev_is_active (w)))
1421	return;	1520	return;
1422		1521
1423	ev_start (EV_A_ (W)w, ++preparecnt);	1522	ev_start (EV_A_ (W)w, ++preparecnt);
1424	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1523	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1425	prepares [preparecnt - 1] = w;	1524	prepares [preparecnt - 1] = w;
1426	}	1525	}
1427		1526
1428	void	1527	void
1429	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1528	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1430	{	1529	{
1431	ev_clear_pending (EV_A_ (W)w);	1530	ev_clear_pending (EV_A_ (W)w);
1432	if (ev_is_active (w))	1531	if (expect_false (!ev_is_active (w)))
1433	return;	1532	return;
1434		1533
1435	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1534	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1436	ev_stop (EV_A_ (W)w);	1535	ev_stop (EV_A_ (W)w);
1437	}	1536	}
1438		1537
1439	void	1538	void
1440	ev_check_start (EV_P_ struct ev_check *w)	1539	ev_check_start (EV_P_ struct ev_check *w)
1441	{	1540	{
1442	if (ev_is_active (w))	1541	if (expect_false (ev_is_active (w)))
1443	return;	1542	return;
1444		1543
1445	ev_start (EV_A_ (W)w, ++checkcnt);	1544	ev_start (EV_A_ (W)w, ++checkcnt);
1446	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1545	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1447	checks [checkcnt - 1] = w;	1546	checks [checkcnt - 1] = w;
1448	}	1547	}
1449		1548
1450	void	1549	void
1451	ev_check_stop (EV_P_ struct ev_check *w)	1550	ev_check_stop (EV_P_ struct ev_check *w)
1452	{	1551	{
1453	ev_clear_pending (EV_A_ (W)w);	1552	ev_clear_pending (EV_A_ (W)w);
1454	if (ev_is_active (w))	1553	if (expect_false (!ev_is_active (w)))
1455	return;	1554	return;
1456		1555
1457	checks [((W)w)->active - 1] = checks [--checkcnt];	1556	checks [((W)w)->active - 1] = checks [--checkcnt];
1458	ev_stop (EV_A_ (W)w);	1557	ev_stop (EV_A_ (W)w);
1459	}	1558	}
…		…
1464		1563
1465	void	1564	void
1466	ev_signal_start (EV_P_ struct ev_signal *w)	1565	ev_signal_start (EV_P_ struct ev_signal *w)
1467	{	1566	{
1468	#if EV_MULTIPLICITY	1567	#if EV_MULTIPLICITY
1469	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1568	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1470	#endif	1569	#endif
1471	if (ev_is_active (w))	1570	if (expect_false (ev_is_active (w)))
1472	return;	1571	return;
1473		1572
1474	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1573	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1475		1574
1476	ev_start (EV_A_ (W)w, 1);	1575	ev_start (EV_A_ (W)w, 1);
1477	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1576	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1478	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1577	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1479		1578
1480	if (!((WL)w)->next)	1579	if (!((WL)w)->next)
1481	{	1580	{
1482	#if WIN32	1581	#if _WIN32
1483	signal (w->signum, sighandler);	1582	signal (w->signum, sighandler);
1484	#else	1583	#else
1485	struct sigaction sa;	1584	struct sigaction sa;
1486	sa.sa_handler = sighandler;	1585	sa.sa_handler = sighandler;
1487	sigfillset (&sa.sa_mask);	1586	sigfillset (&sa.sa_mask);
…		…
1493		1592
1494	void	1593	void
1495	ev_signal_stop (EV_P_ struct ev_signal *w)	1594	ev_signal_stop (EV_P_ struct ev_signal *w)
1496	{	1595	{
1497	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1498	if (!ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1499	return;	1598	return;
1500		1599
1501	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1600	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1502	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1503		1602
…		…
1507		1606
1508	void	1607	void
1509	ev_child_start (EV_P_ struct ev_child *w)	1608	ev_child_start (EV_P_ struct ev_child *w)
1510	{	1609	{
1511	#if EV_MULTIPLICITY	1610	#if EV_MULTIPLICITY
1512	assert (("child watchers are only supported in the default loop", loop == default_loop));	1611	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1513	#endif	1612	#endif
1514	if (ev_is_active (w))	1613	if (expect_false (ev_is_active (w)))
1515	return;	1614	return;
1516		1615
1517	ev_start (EV_A_ (W)w, 1);	1616	ev_start (EV_A_ (W)w, 1);
1518	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1519	}	1618	}
1520		1619
1521	void	1620	void
1522	ev_child_stop (EV_P_ struct ev_child *w)	1621	ev_child_stop (EV_P_ struct ev_child *w)
1523	{	1622	{
1524	ev_clear_pending (EV_A_ (W)w);	1623	ev_clear_pending (EV_A_ (W)w);
1525	if (ev_is_active (w))	1624	if (expect_false (!ev_is_active (w)))
1526	return;	1625	return;
1527		1626
1528	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1627	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1529	ev_stop (EV_A_ (W)w);	1628	ev_stop (EV_A_ (W)w);
1530	}	1629	}
…		…
1567	void	1666	void
1568	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1667	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1569	{	1668	{
1570	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1669	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1571		1670
1572	if (!once)	1671	if (expect_false (!once))
		1672	{
1573	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1673	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1574	else	1674	return;
1575	{	1675	}
		1676
1576	once->cb = cb;	1677	once->cb = cb;
1577	once->arg = arg;	1678	once->arg = arg;
1578		1679
1579	ev_init (&once->io, once_cb_io);	1680	ev_init (&once->io, once_cb_io);
1580	if (fd >= 0)	1681	if (fd >= 0)
1581	{	1682	{
1582	ev_io_set (&once->io, fd, events);	1683	ev_io_set (&once->io, fd, events);
1583	ev_io_start (EV_A_ &once->io);	1684	ev_io_start (EV_A_ &once->io);
1584	}	1685	}
1585		1686
1586	ev_init (&once->to, once_cb_to);	1687	ev_init (&once->to, once_cb_to);
1587	if (timeout >= 0.)	1688	if (timeout >= 0.)
1588	{	1689	{
1589	ev_timer_set (&once->to, timeout, 0.);	1690	ev_timer_set (&once->to, timeout, 0.);
1590	ev_timer_start (EV_A_ &once->to);	1691	ev_timer_start (EV_A_ &once->to);
1591	}
1592	}	1692	}
1593	}	1693	}
1594		1694
		1695	#ifdef __cplusplus
		1696	}
		1697	#endif
		1698

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Comparing libev/ev.c (file contents): Revision 1.84 by root, Fri Nov 9 23:04:35 2007 UTC vs. Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.84 by root, Fri Nov 9 23:04:35 2007 UTC vs.
Revision 1.127 by root, Sun Nov 18 02:17:57 2007 UTC