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

Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.131 by root, Fri Nov 23 05:43:45 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	/**/
113		158
114	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
119	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
122	#endif	167	#endif
123		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
124	/**/	173	/**/
125		174
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	175	#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) */	176	#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 */	177	#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 */	178	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		179
131	#ifdef EV_H	180	#ifdef EV_H
132	# include EV_H	181	# include EV_H
133	#else	182	#else
134	# include "ev.h"	183	# include "ev.h"
135	#endif	184	#endif
136		185
137	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
138	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
139	# define inline inline	188	# define inline static inline
140	#else	189	#else
141	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
142	# define inline static	191	# define inline static
143	#endif	192	#endif
144		193
…		…
146	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
147		196
148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
150		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
151	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
152	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
153	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
154		206
155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156		208
		209	#ifdef _WIN32
157	#include "ev_win32.c"	210	# include "ev_win32.c"
		211	#endif
158		212
159	/*****************************************************************************/	213	/*****************************************************************************/
160		214
161	static void (syserr_cb)(const char msg);	215	static void (syserr_cb)(const char msg);
162		216
…		…
209	typedef struct	263	typedef struct
210	{	264	{
211	WL head;	265	WL head;
212	unsigned char events;	266	unsigned char events;
213	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
214	} ANFD;	271	} ANFD;
215		272
216	typedef struct	273	typedef struct
217	{	274	{
218	W w;	275	W w;
…		…
221		278
222	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
223		280
224	struct ev_loop	281	struct ev_loop
225	{	282	{
		283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
226	#define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
227	#include "ev_vars.h"	286	#include "ev_vars.h"
228	#undef VAR	287	#undef VAR
229	};	288	};
230	#include "ev_wrap.h"	289	#include "ev_wrap.h"
231		290
232	struct ev_loop default_loop_struct;	291	static struct ev_loop default_loop_struct;
233	static struct ev_loop *default_loop;	292	struct ev_loop *ev_default_loop_ptr;
234		293
235	#else	294	#else
236		295
		296	ev_tstamp ev_rt_now;
237	#define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
238	#include "ev_vars.h"	298	#include "ev_vars.h"
239	#undef VAR	299	#undef VAR
240		300
241	static int default_loop;	301	static int ev_default_loop_ptr;
242		302
243	#endif	303	#endif
244		304
245	/*****************************************************************************/	305	/*****************************************************************************/
246		306
247	inline ev_tstamp	307	ev_tstamp
248	ev_time (void)	308	ev_time (void)
249	{	309	{
250	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
251	struct timespec ts;	311	struct timespec ts;
252	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
279	{	339	{
280	return ev_rt_now;	340	return ev_rt_now;
281	}	341	}
282	#endif	342	#endif
283		343
284	#define array_roundsize(type,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
285		345
286	#define array_needsize(type,base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
287	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
288	{ \	348	{ \
289	int newcnt = cur; \	349	int newcnt = cur; \
…		…
304	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
305	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
306	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
307	}	367	}
308		368
309	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
310	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
311	#define array_free_microshit(stem) \
312	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
313
314	#define array_free(stem, idx) \	369	#define array_free(stem, idx) \
315	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
316		371
317	/*****************************************************************************/	372	/*****************************************************************************/
318		373
…		…
332	void	387	void
333	ev_feed_event (EV_P_ void *w, int revents)	388	ev_feed_event (EV_P_ void *w, int revents)
334	{	389	{
335	W w_ = (W)w;	390	W w_ = (W)w;
336		391
337	if (w_->pending)	392	if (expect_false (w_->pending))
338	{	393	{
339	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
340	return;	395	return;
341	}	396	}
342		397
343	w_->pending = ++pendingcnt [ABSPRI (w_)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
344	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
345	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
346	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
347	}	402	}
348		403
349	static void	404	static void
…		…
376	fd_event (EV_A_ fd, revents);	431	fd_event (EV_A_ fd, revents);
377	}	432	}
378		433
379	/*****************************************************************************/	434	/*****************************************************************************/
380		435
381	static void	436	inline void
382	fd_reify (EV_P)	437	fd_reify (EV_P)
383	{	438	{
384	int i;	439	int i;
385		440
386	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
392	int events = 0;	447	int events = 0;
393		448
394	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	449	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
395	events \|= w->events;	450	events \|= w->events;
396		451
		452	#if EV_SELECT_IS_WINSOCKET
		453	if (events)
		454	{
		455	unsigned long argp;
		456	anfd->handle = _get_osfhandle (fd);
		457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		458	}
		459	#endif
		460
397	anfd->reify = 0;	461	anfd->reify = 0;
398		462
399	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
400	anfd->events = events;	464	anfd->events = events;
401	}	465	}
402		466
403	fdchangecnt = 0;	467	fdchangecnt = 0;
404	}	468	}
405		469
406	static void	470	static void
407	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
408	{	472	{
409	if (anfds [fd].reify)	473	if (expect_false (anfds [fd].reify))
410	return;	474	return;
411		475
412	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
413		477
414	++fdchangecnt;	478	++fdchangecnt;
415	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
416	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
417	}	481	}
418		482
419	static void	483	static void
420	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
426	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
427	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	491	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
428	}	492	}
429	}	493	}
430		494
431	static int	495	inline int
432	fd_valid (int fd)	496	fd_valid (int fd)
433	{	497	{
434	#ifdef WIN32	498	#ifdef _WIN32
435	return !!win32_get_osfhandle (fd);	499	return _get_osfhandle (fd) != -1;
436	#else	500	#else
437	return fcntl (fd, F_GETFD) != -1;	501	return fcntl (fd, F_GETFD) != -1;
438	#endif	502	#endif
439	}	503	}
440		504
…		…
462	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
463	return;	527	return;
464	}	528	}
465	}	529	}
466		530
467	/* usually called after fork if method needs to re-arm all fds from scratch */	531	/* usually called after fork if backend needs to re-arm all fds from scratch */
468	static void	532	static void
469	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
470	{	534	{
471	int fd;	535	int fd;
472		536
…		…
521	heap [k] = w;	585	heap [k] = w;
522	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
523	}	587	}
524		588
525	inline void	589	inline void
526	adjustheap (WT *heap, int N, int k, ev_tstamp at)	590	adjustheap (WT *heap, int N, int k)
527	{	591	{
528	ev_tstamp old_at = heap [k]->at;	592	upheap (heap, k);
529	heap [k]->at = at;
530
531	if (old_at < at)
532	downheap (heap, N, k);	593	downheap (heap, N, k);
533	else
534	upheap (heap, k);
535	}	594	}
536		595
537	/*****************************************************************************/	596	/*****************************************************************************/
538		597
539	typedef struct	598	typedef struct
…		…
562	}	621	}
563		622
564	static void	623	static void
565	sighandler (int signum)	624	sighandler (int signum)
566	{	625	{
567	#if WIN32	626	#if _WIN32
568	signal (signum, sighandler);	627	signal (signum, sighandler);
569	#endif	628	#endif
570		629
571	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
572		631
573	if (!gotsig)	632	if (!gotsig)
574	{	633	{
575	int old_errno = errno;	634	int old_errno = errno;
576	gotsig = 1;	635	gotsig = 1;
577	#ifdef WIN32
578	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
579	#else
580	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
581	#endif
582	errno = old_errno;	637	errno = old_errno;
583	}	638	}
584	}	639	}
585		640
586	void	641	void
587	ev_feed_signal_event (EV_P_ int signum)	642	ev_feed_signal_event (EV_P_ int signum)
588	{	643	{
589	WL w;	644	WL w;
590		645
591	#if EV_MULTIPLICITY	646	#if EV_MULTIPLICITY
592	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	647	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
593	#endif	648	#endif
594		649
595	--signum;	650	--signum;
596		651
597	if (signum < 0 \|\| signum >= signalmax)	652	if (signum < 0 \|\| signum >= signalmax)
…		…
606	static void	661	static void
607	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
608	{	663	{
609	int signum;	664	int signum;
610		665
611	#ifdef WIN32
612	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
613	#else
614	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
615	#endif
616	gotsig = 0;	667	gotsig = 0;
617		668
618	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
619	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
620	ev_feed_signal_event (EV_A_ signum + 1);	671	ev_feed_signal_event (EV_A_ signum + 1);
621	}	672	}
622		673
623	static void	674	static void
		675	fd_intern (int fd)
		676	{
		677	#ifdef _WIN32
		678	int arg = 1;
		679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		680	#else
		681	fcntl (fd, F_SETFD, FD_CLOEXEC);
		682	fcntl (fd, F_SETFL, O_NONBLOCK);
		683	#endif
		684	}
		685
		686	static void
624	siginit (EV_P)	687	siginit (EV_P)
625	{	688	{
626	#ifndef WIN32	689	fd_intern (sigpipe [0]);
627	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
628	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
629
630	/* rather than sort out wether we really need nb, set it */
631	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
632	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
633	#endif
634		691
635	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
636	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
637	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
638	}	695	}
639		696
640	/*****************************************************************************/	697	/*****************************************************************************/
641		698
642	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
643		700
644	#ifndef WIN32	701	#ifndef _WIN32
645		702
646	static struct ev_signal childev;	703	static struct ev_signal childev;
647		704
648	#ifndef WCONTINUED	705	#ifndef WCONTINUED
649	# define WCONTINUED 0	706	# define WCONTINUED 0
…		…
681		738
682	#endif	739	#endif
683		740
684	/*****************************************************************************/	741	/*****************************************************************************/
685		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
686	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
687	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
688	#endif	748	#endif
689	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
690	# include "ev_epoll.c"	750	# include "ev_epoll.c"
…		…
710		770
711	/* return true if we are running with elevated privileges and should ignore env variables */	771	/* return true if we are running with elevated privileges and should ignore env variables */
712	static int	772	static int
713	enable_secure (void)	773	enable_secure (void)
714	{	774	{
715	#ifdef WIN32	775	#ifdef _WIN32
716	return 0;	776	return 0;
717	#else	777	#else
718	return getuid () != geteuid ()	778	return getuid () != geteuid ()
719	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
720	#endif	780	#endif
721	}	781	}
722		782
723	int	783	unsigned int
724	ev_method (EV_P)	784	ev_supported_backends (void)
725	{	785	{
726	return method;	786	unsigned int flags = 0;
727	}
728		787
729	static void	788	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
730	loop_init (EV_P_ int methods)	789	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		790	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		791	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		792	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		793
		794	return flags;
		795	}
		796
		797	unsigned int
		798	ev_recommended_backends (void)
731	{	799	{
732	if (!method)	800	unsigned int flags = ev_supported_backends ();
		801
		802	#ifndef __NetBSD__
		803	/* kqueue is borked on everything but netbsd apparently */
		804	/* it usually doesn't work correctly on anything but sockets and pipes */
		805	flags &= ~EVBACKEND_KQUEUE;
		806	#endif
		807	#ifdef __APPLE__
		808	// flags &= ~EVBACKEND_KQUEUE; for documentation
		809	flags &= ~EVBACKEND_POLL;
		810	#endif
		811
		812	return flags;
		813	}
		814
		815	unsigned int
		816	ev_backend (EV_P)
		817	{
		818	return backend;
		819	}
		820
		821	static void
		822	loop_init (EV_P_ unsigned int flags)
		823	{
		824	if (!backend)
733	{	825	{
734	#if EV_USE_MONOTONIC	826	#if EV_USE_MONOTONIC
735	{	827	{
736	struct timespec ts;	828	struct timespec ts;
737	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	829	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
…		…
742	ev_rt_now = ev_time ();	834	ev_rt_now = ev_time ();
743	mn_now = get_clock ();	835	mn_now = get_clock ();
744	now_floor = mn_now;	836	now_floor = mn_now;
745	rtmn_diff = ev_rt_now - mn_now;	837	rtmn_diff = ev_rt_now - mn_now;
746		838
747	if (methods == EVMETHOD_AUTO)	839	if (!(flags & EVFLAG_NOENV)
748	if (!enable_secure () && getenv ("LIBEV_METHODS"))	840	&& !enable_secure ()
		841	&& getenv ("LIBEV_FLAGS"))
749	methods = atoi (getenv ("LIBEV_METHODS"));	842	flags = atoi (getenv ("LIBEV_FLAGS"));
750	else
751	methods = EVMETHOD_ANY;
752		843
753	method = 0;	844	if (!(flags & 0x0000ffffUL))
754	#if EV_USE_WIN32	845	flags \|= ev_recommended_backends ();
755	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	846
		847	backend = 0;
		848	#if EV_USE_PORT
		849	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
756	#endif	850	#endif
757	#if EV_USE_KQUEUE	851	#if EV_USE_KQUEUE
758	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	852	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
759	#endif	853	#endif
760	#if EV_USE_EPOLL	854	#if EV_USE_EPOLL
761	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	855	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
762	#endif	856	#endif
763	#if EV_USE_POLL	857	#if EV_USE_POLL
764	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	858	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
765	#endif	859	#endif
766	#if EV_USE_SELECT	860	#if EV_USE_SELECT
767	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	861	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
768	#endif	862	#endif
769		863
770	ev_init (&sigev, sigcb);	864	ev_init (&sigev, sigcb);
771	ev_set_priority (&sigev, EV_MAXPRI);	865	ev_set_priority (&sigev, EV_MAXPRI);
772	}	866	}
773	}	867	}
774		868
775	void	869	static void
776	loop_destroy (EV_P)	870	loop_destroy (EV_P)
777	{	871	{
778	int i;	872	int i;
779		873
780	#if EV_USE_WIN32	874	#if EV_USE_PORT
781	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	875	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
782	#endif	876	#endif
783	#if EV_USE_KQUEUE	877	#if EV_USE_KQUEUE
784	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	878	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
785	#endif	879	#endif
786	#if EV_USE_EPOLL	880	#if EV_USE_EPOLL
787	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	881	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
788	#endif	882	#endif
789	#if EV_USE_POLL	883	#if EV_USE_POLL
790	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	884	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
791	#endif	885	#endif
792	#if EV_USE_SELECT	886	#if EV_USE_SELECT
793	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	887	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
794	#endif	888	#endif
795		889
796	for (i = NUMPRI; i--; )	890	for (i = NUMPRI; i--; )
797	array_free (pending, [i]);	891	array_free (pending, [i]);
798		892
799	/* have to use the microsoft-never-gets-it-right macro */	893	/* have to use the microsoft-never-gets-it-right macro */
800	array_free_microshit (fdchange);	894	array_free (fdchange, EMPTY0);
801	array_free_microshit (timer);	895	array_free (timer, EMPTY0);
802	array_free_microshit (periodic);	896	#if EV_PERIODICS
803	array_free_microshit (idle);	897	array_free (periodic, EMPTY0);
804	array_free_microshit (prepare);	898	#endif
805	array_free_microshit (check);	899	array_free (idle, EMPTY0);
		900	array_free (prepare, EMPTY0);
		901	array_free (check, EMPTY0);
806		902
807	method = 0;	903	backend = 0;
808	}	904	}
809		905
810	static void	906	static void
811	loop_fork (EV_P)	907	loop_fork (EV_P)
812	{	908	{
		909	#if EV_USE_PORT
		910	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		911	#endif
		912	#if EV_USE_KQUEUE
		913	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		914	#endif
813	#if EV_USE_EPOLL	915	#if EV_USE_EPOLL
814	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	916	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
815	#endif
816	#if EV_USE_KQUEUE
817	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
818	#endif	917	#endif
819		918
820	if (ev_is_active (&sigev))	919	if (ev_is_active (&sigev))
821	{	920	{
822	/* default loop */	921	/* default loop */
…		…
835	postfork = 0;	934	postfork = 0;
836	}	935	}
837		936
838	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
839	struct ev_loop *	938	struct ev_loop *
840	ev_loop_new (int methods)	939	ev_loop_new (unsigned int flags)
841	{	940	{
842	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	941	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
843		942
844	memset (loop, 0, sizeof (struct ev_loop));	943	memset (loop, 0, sizeof (struct ev_loop));
845		944
846	loop_init (EV_A_ methods);	945	loop_init (EV_A_ flags);
847		946
848	if (ev_method (EV_A))	947	if (ev_backend (EV_A))
849	return loop;	948	return loop;
850		949
851	return 0;	950	return 0;
852	}	951	}
853		952
…		…
866		965
867	#endif	966	#endif
868		967
869	#if EV_MULTIPLICITY	968	#if EV_MULTIPLICITY
870	struct ev_loop *	969	struct ev_loop *
		970	ev_default_loop_init (unsigned int flags)
871	#else	971	#else
872	int	972	int
		973	ev_default_loop (unsigned int flags)
873	#endif	974	#endif
874	ev_default_loop (int methods)
875	{	975	{
876	if (sigpipe [0] == sigpipe [1])	976	if (sigpipe [0] == sigpipe [1])
877	if (pipe (sigpipe))	977	if (pipe (sigpipe))
878	return 0;	978	return 0;
879		979
880	if (!default_loop)	980	if (!ev_default_loop_ptr)
881	{	981	{
882	#if EV_MULTIPLICITY	982	#if EV_MULTIPLICITY
883	struct ev_loop *loop = default_loop = &default_loop_struct;	983	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
884	#else	984	#else
885	default_loop = 1;	985	ev_default_loop_ptr = 1;
886	#endif	986	#endif
887		987
888	loop_init (EV_A_ methods);	988	loop_init (EV_A_ flags);
889		989
890	if (ev_method (EV_A))	990	if (ev_backend (EV_A))
891	{	991	{
892	siginit (EV_A);	992	siginit (EV_A);
893		993
894	#ifndef WIN32	994	#ifndef _WIN32
895	ev_signal_init (&childev, childcb, SIGCHLD);	995	ev_signal_init (&childev, childcb, SIGCHLD);
896	ev_set_priority (&childev, EV_MAXPRI);	996	ev_set_priority (&childev, EV_MAXPRI);
897	ev_signal_start (EV_A_ &childev);	997	ev_signal_start (EV_A_ &childev);
898	ev_unref (EV_A); /* child watcher should not keep loop alive */	998	ev_unref (EV_A); /* child watcher should not keep loop alive */
899	#endif	999	#endif
900	}	1000	}
901	else	1001	else
902	default_loop = 0;	1002	ev_default_loop_ptr = 0;
903	}	1003	}
904		1004
905	return default_loop;	1005	return ev_default_loop_ptr;
906	}	1006	}
907		1007
908	void	1008	void
909	ev_default_destroy (void)	1009	ev_default_destroy (void)
910	{	1010	{
911	#if EV_MULTIPLICITY	1011	#if EV_MULTIPLICITY
912	struct ev_loop *loop = default_loop;	1012	struct ev_loop *loop = ev_default_loop_ptr;
913	#endif	1013	#endif
914		1014
915	#ifndef WIN32	1015	#ifndef _WIN32
916	ev_ref (EV_A); /* child watcher */	1016	ev_ref (EV_A); /* child watcher */
917	ev_signal_stop (EV_A_ &childev);	1017	ev_signal_stop (EV_A_ &childev);
918	#endif	1018	#endif
919		1019
920	ev_ref (EV_A); /* signal watcher */	1020	ev_ref (EV_A); /* signal watcher */
…		…
928		1028
929	void	1029	void
930	ev_default_fork (void)	1030	ev_default_fork (void)
931	{	1031	{
932	#if EV_MULTIPLICITY	1032	#if EV_MULTIPLICITY
933	struct ev_loop *loop = default_loop;	1033	struct ev_loop *loop = ev_default_loop_ptr;
934	#endif	1034	#endif
935		1035
936	if (method)	1036	if (backend)
937	postfork = 1;	1037	postfork = 1;
938	}	1038	}
939		1039
940	/*****************************************************************************/	1040	/*****************************************************************************/
941		1041
…		…
949	return 1;	1049	return 1;
950		1050
951	return 0;	1051	return 0;
952	}	1052	}
953		1053
954	static void	1054	inline void
955	call_pending (EV_P)	1055	call_pending (EV_P)
956	{	1056	{
957	int pri;	1057	int pri;
958		1058
959	for (pri = NUMPRI; pri--; )	1059	for (pri = NUMPRI; pri--; )
960	while (pendingcnt [pri])	1060	while (pendingcnt [pri])
961	{	1061	{
962	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1062	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
963		1063
964	if (p->w)	1064	if (expect_true (p->w))
965	{	1065	{
966	p->w->pending = 0;	1066	p->w->pending = 0;
967	EV_CB_INVOKE (p->w, p->events);	1067	EV_CB_INVOKE (p->w, p->events);
968	}	1068	}
969	}	1069	}
970	}	1070	}
971		1071
972	static void	1072	inline void
973	timers_reify (EV_P)	1073	timers_reify (EV_P)
974	{	1074	{
975	while (timercnt && ((WT)timers [0])->at <= mn_now)	1075	while (timercnt && ((WT)timers [0])->at <= mn_now)
976	{	1076	{
977	struct ev_timer *w = timers [0];	1077	struct ev_timer *w = timers [0];
…		…
980		1080
981	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
982	if (w->repeat)	1082	if (w->repeat)
983	{	1083	{
984	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1084	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1085
985	((WT)w)->at = mn_now + w->repeat;	1086	((WT)w)->at += w->repeat;
		1087	if (((WT)w)->at < mn_now)
		1088	((WT)w)->at = mn_now;
		1089
986	downheap ((WT *)timers, timercnt, 0);	1090	downheap ((WT *)timers, timercnt, 0);
987	}	1091	}
988	else	1092	else
989	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1093	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
990		1094
991	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1095	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
992	}	1096	}
993	}	1097	}
994		1098
995	static void	1099	#if EV_PERIODICS
		1100	inline void
996	periodics_reify (EV_P)	1101	periodics_reify (EV_P)
997	{	1102	{
998	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1103	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
999	{	1104	{
1000	struct ev_periodic *w = periodics [0];	1105	struct ev_periodic *w = periodics [0];
…		…
1002	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1107	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1003		1108
1004	/* first reschedule or stop timer */	1109	/* first reschedule or stop timer */
1005	if (w->reschedule_cb)	1110	if (w->reschedule_cb)
1006	{	1111	{
1007	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1008
1009	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1113	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1010	downheap ((WT *)periodics, periodiccnt, 0);	1114	downheap ((WT *)periodics, periodiccnt, 0);
1011	}	1115	}
1012	else if (w->interval)	1116	else if (w->interval)
1013	{	1117	{
…		…
1040		1144
1041	/* now rebuild the heap */	1145	/* now rebuild the heap */
1042	for (i = periodiccnt >> 1; i--; )	1146	for (i = periodiccnt >> 1; i--; )
1043	downheap ((WT *)periodics, periodiccnt, i);	1147	downheap ((WT *)periodics, periodiccnt, i);
1044	}	1148	}
		1149	#endif
1045		1150
1046	inline int	1151	inline int
1047	time_update_monotonic (EV_P)	1152	time_update_monotonic (EV_P)
1048	{	1153	{
1049	mn_now = get_clock ();	1154	mn_now = get_clock ();
…		…
1059	ev_rt_now = ev_time ();	1164	ev_rt_now = ev_time ();
1060	return 1;	1165	return 1;
1061	}	1166	}
1062	}	1167	}
1063		1168
1064	static void	1169	inline void
1065	time_update (EV_P)	1170	time_update (EV_P)
1066	{	1171	{
1067	int i;	1172	int i;
1068		1173
1069	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
…		…
1083	ev_rt_now = ev_time ();	1188	ev_rt_now = ev_time ();
1084	mn_now = get_clock ();	1189	mn_now = get_clock ();
1085	now_floor = mn_now;	1190	now_floor = mn_now;
1086	}	1191	}
1087		1192
		1193	# if EV_PERIODICS
1088	periodics_reschedule (EV_A);	1194	periodics_reschedule (EV_A);
		1195	# endif
1089	/* no timer adjustment, as the monotonic clock doesn't jump */	1196	/* no timer adjustment, as the monotonic clock doesn't jump */
1090	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1197	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1091	}	1198	}
1092	}	1199	}
1093	else	1200	else
…		…
1095	{	1202	{
1096	ev_rt_now = ev_time ();	1203	ev_rt_now = ev_time ();
1097		1204
1098	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1205	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1099	{	1206	{
		1207	#if EV_PERIODICS
1100	periodics_reschedule (EV_A);	1208	periodics_reschedule (EV_A);
		1209	#endif
1101		1210
1102	/* adjust timers. this is easy, as the offset is the same for all */	1211	/* adjust timers. this is easy, as the offset is the same for all */
1103	for (i = 0; i < timercnt; ++i)	1212	for (i = 0; i < timercnt; ++i)
1104	((WT)timers [i])->at += ev_rt_now - mn_now;	1213	((WT)timers [i])->at += ev_rt_now - mn_now;
1105	}	1214	}
…		…
1126	ev_loop (EV_P_ int flags)	1235	ev_loop (EV_P_ int flags)
1127	{	1236	{
1128	double block;	1237	double block;
1129	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1238	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1130		1239
1131	do	1240	while (activecnt)
1132	{	1241	{
1133	/* queue check watchers (and execute them) */	1242	/* queue check watchers (and execute them) */
1134	if (expect_false (preparecnt))	1243	if (expect_false (preparecnt))
1135	{	1244	{
1136	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1245	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1164	{	1273	{
1165	block = MAX_BLOCKTIME;	1274	block = MAX_BLOCKTIME;
1166		1275
1167	if (timercnt)	1276	if (timercnt)
1168	{	1277	{
1169	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1278	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1170	if (block > to) block = to;	1279	if (block > to) block = to;
1171	}	1280	}
1172		1281
		1282	#if EV_PERIODICS
1173	if (periodiccnt)	1283	if (periodiccnt)
1174	{	1284	{
1175	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1285	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1176	if (block > to) block = to;	1286	if (block > to) block = to;
1177	}	1287	}
		1288	#endif
1178		1289
1179	if (block < 0.) block = 0.;	1290	if (expect_false (block < 0.)) block = 0.;
1180	}	1291	}
1181		1292
1182	method_poll (EV_A_ block);	1293	backend_poll (EV_A_ block);
1183		1294
1184	/* update ev_rt_now, do magic */	1295	/* update ev_rt_now, do magic */
1185	time_update (EV_A);	1296	time_update (EV_A);
1186		1297
1187	/* queue pending timers and reschedule them */	1298	/* queue pending timers and reschedule them */
1188	timers_reify (EV_A); /* relative timers called last */	1299	timers_reify (EV_A); /* relative timers called last */
		1300	#if EV_PERIODICS
1189	periodics_reify (EV_A); /* absolute timers called first */	1301	periodics_reify (EV_A); /* absolute timers called first */
		1302	#endif
1190		1303
1191	/* queue idle watchers unless io or timers are pending */	1304	/* queue idle watchers unless io or timers are pending */
1192	if (idlecnt && !any_pending (EV_A))	1305	if (idlecnt && !any_pending (EV_A))
1193	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1306	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1194		1307
1195	/* queue check watchers, to be executed first */	1308	/* queue check watchers, to be executed first */
1196	if (checkcnt)	1309	if (expect_false (checkcnt))
1197	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1310	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1198		1311
1199	call_pending (EV_A);	1312	call_pending (EV_A);
		1313
		1314	if (expect_false (loop_done))
		1315	break;
1200	}	1316	}
1201	while (activecnt && !loop_done);
1202		1317
1203	if (loop_done != 2)	1318	if (loop_done != 2)
1204	loop_done = 0;	1319	loop_done = 0;
1205	}	1320	}
1206		1321
…		…
1266	void	1381	void
1267	ev_io_start (EV_P_ struct ev_io *w)	1382	ev_io_start (EV_P_ struct ev_io *w)
1268	{	1383	{
1269	int fd = w->fd;	1384	int fd = w->fd;
1270		1385
1271	if (ev_is_active (w))	1386	if (expect_false (ev_is_active (w)))
1272	return;	1387	return;
1273		1388
1274	assert (("ev_io_start called with negative fd", fd >= 0));	1389	assert (("ev_io_start called with negative fd", fd >= 0));
1275		1390
1276	ev_start (EV_A_ (W)w, 1);	1391	ev_start (EV_A_ (W)w, 1);
…		…
1282		1397
1283	void	1398	void
1284	ev_io_stop (EV_P_ struct ev_io *w)	1399	ev_io_stop (EV_P_ struct ev_io *w)
1285	{	1400	{
1286	ev_clear_pending (EV_A_ (W)w);	1401	ev_clear_pending (EV_A_ (W)w);
1287	if (!ev_is_active (w))	1402	if (expect_false (!ev_is_active (w)))
1288	return;	1403	return;
		1404
		1405	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1289		1406
1290	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1407	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1291	ev_stop (EV_A_ (W)w);	1408	ev_stop (EV_A_ (W)w);
1292		1409
1293	fd_change (EV_A_ w->fd);	1410	fd_change (EV_A_ w->fd);
1294	}	1411	}
1295		1412
1296	void	1413	void
1297	ev_timer_start (EV_P_ struct ev_timer *w)	1414	ev_timer_start (EV_P_ struct ev_timer *w)
1298	{	1415	{
1299	if (ev_is_active (w))	1416	if (expect_false (ev_is_active (w)))
1300	return;	1417	return;
1301		1418
1302	((WT)w)->at += mn_now;	1419	((WT)w)->at += mn_now;
1303		1420
1304	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1421	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1305		1422
1306	ev_start (EV_A_ (W)w, ++timercnt);	1423	ev_start (EV_A_ (W)w, ++timercnt);
1307	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1424	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1308	timers [timercnt - 1] = w;	1425	timers [timercnt - 1] = w;
1309	upheap ((WT *)timers, timercnt - 1);	1426	upheap ((WT *)timers, timercnt - 1);
1310		1427
1311	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1428	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1312	}	1429	}
1313		1430
1314	void	1431	void
1315	ev_timer_stop (EV_P_ struct ev_timer *w)	1432	ev_timer_stop (EV_P_ struct ev_timer *w)
1316	{	1433	{
1317	ev_clear_pending (EV_A_ (W)w);	1434	ev_clear_pending (EV_A_ (W)w);
1318	if (!ev_is_active (w))	1435	if (expect_false (!ev_is_active (w)))
1319	return;	1436	return;
1320		1437
1321	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1438	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1322		1439
1323	if (((W)w)->active < timercnt--)	1440	if (expect_true (((W)w)->active < timercnt--))
1324	{	1441	{
1325	timers [((W)w)->active - 1] = timers [timercnt];	1442	timers [((W)w)->active - 1] = timers [timercnt];
1326	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1443	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1327	}	1444	}
1328		1445
1329	((WT)w)->at = w->repeat;	1446	((WT)w)->at -= mn_now;
1330		1447
1331	ev_stop (EV_A_ (W)w);	1448	ev_stop (EV_A_ (W)w);
1332	}	1449	}
1333		1450
1334	void	1451	void
1335	ev_timer_again (EV_P_ struct ev_timer *w)	1452	ev_timer_again (EV_P_ struct ev_timer *w)
1336	{	1453	{
1337	if (ev_is_active (w))	1454	if (ev_is_active (w))
1338	{	1455	{
1339	if (w->repeat)	1456	if (w->repeat)
		1457	{
		1458	((WT)w)->at = mn_now + w->repeat;
1340	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1460	}
1341	else	1461	else
1342	ev_timer_stop (EV_A_ w);	1462	ev_timer_stop (EV_A_ w);
1343	}	1463	}
1344	else if (w->repeat)	1464	else if (w->repeat)
		1465	{
		1466	w->at = w->repeat;
1345	ev_timer_start (EV_A_ w);	1467	ev_timer_start (EV_A_ w);
		1468	}
1346	}	1469	}
1347		1470
		1471	#if EV_PERIODICS
1348	void	1472	void
1349	ev_periodic_start (EV_P_ struct ev_periodic *w)	1473	ev_periodic_start (EV_P_ struct ev_periodic *w)
1350	{	1474	{
1351	if (ev_is_active (w))	1475	if (expect_false (ev_is_active (w)))
1352	return;	1476	return;
1353		1477
1354	if (w->reschedule_cb)	1478	if (w->reschedule_cb)
1355	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1479	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1356	else if (w->interval)	1480	else if (w->interval)
…		…
1359	/* this formula differs from the one in periodic_reify because we do not always round up */	1483	/* this formula differs from the one in periodic_reify because we do not always round up */
1360	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1484	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1361	}	1485	}
1362		1486
1363	ev_start (EV_A_ (W)w, ++periodiccnt);	1487	ev_start (EV_A_ (W)w, ++periodiccnt);
1364	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1488	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1365	periodics [periodiccnt - 1] = w;	1489	periodics [periodiccnt - 1] = w;
1366	upheap ((WT *)periodics, periodiccnt - 1);	1490	upheap ((WT *)periodics, periodiccnt - 1);
1367		1491
1368	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1492	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1369	}	1493	}
1370		1494
1371	void	1495	void
1372	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1496	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1373	{	1497	{
1374	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1375	if (!ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1376	return;	1500	return;
1377		1501
1378	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1502	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1379		1503
1380	if (((W)w)->active < periodiccnt--)	1504	if (expect_true (((W)w)->active < periodiccnt--))
1381	{	1505	{
1382	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1506	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1383	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1507	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1384	}	1508	}
1385		1509
1386	ev_stop (EV_A_ (W)w);	1510	ev_stop (EV_A_ (W)w);
1387	}	1511	}
1388		1512
…		…
1391	{	1515	{
1392	/* TODO: use adjustheap and recalculation */	1516	/* TODO: use adjustheap and recalculation */
1393	ev_periodic_stop (EV_A_ w);	1517	ev_periodic_stop (EV_A_ w);
1394	ev_periodic_start (EV_A_ w);	1518	ev_periodic_start (EV_A_ w);
1395	}	1519	}
		1520	#endif
1396		1521
1397	void	1522	void
1398	ev_idle_start (EV_P_ struct ev_idle *w)	1523	ev_idle_start (EV_P_ struct ev_idle *w)
1399	{	1524	{
1400	if (ev_is_active (w))	1525	if (expect_false (ev_is_active (w)))
1401	return;	1526	return;
1402		1527
1403	ev_start (EV_A_ (W)w, ++idlecnt);	1528	ev_start (EV_A_ (W)w, ++idlecnt);
1404	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1529	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1405	idles [idlecnt - 1] = w;	1530	idles [idlecnt - 1] = w;
1406	}	1531	}
1407		1532
1408	void	1533	void
1409	ev_idle_stop (EV_P_ struct ev_idle *w)	1534	ev_idle_stop (EV_P_ struct ev_idle *w)
1410	{	1535	{
1411	ev_clear_pending (EV_A_ (W)w);	1536	ev_clear_pending (EV_A_ (W)w);
1412	if (ev_is_active (w))	1537	if (expect_false (!ev_is_active (w)))
1413	return;	1538	return;
1414		1539
1415	idles [((W)w)->active - 1] = idles [--idlecnt];	1540	idles [((W)w)->active - 1] = idles [--idlecnt];
1416	ev_stop (EV_A_ (W)w);	1541	ev_stop (EV_A_ (W)w);
1417	}	1542	}
1418		1543
1419	void	1544	void
1420	ev_prepare_start (EV_P_ struct ev_prepare *w)	1545	ev_prepare_start (EV_P_ struct ev_prepare *w)
1421	{	1546	{
1422	if (ev_is_active (w))	1547	if (expect_false (ev_is_active (w)))
1423	return;	1548	return;
1424		1549
1425	ev_start (EV_A_ (W)w, ++preparecnt);	1550	ev_start (EV_A_ (W)w, ++preparecnt);
1426	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1551	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1427	prepares [preparecnt - 1] = w;	1552	prepares [preparecnt - 1] = w;
1428	}	1553	}
1429		1554
1430	void	1555	void
1431	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1556	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1432	{	1557	{
1433	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1434	if (ev_is_active (w))	1559	if (expect_false (!ev_is_active (w)))
1435	return;	1560	return;
1436		1561
1437	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1562	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1438	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1439	}	1564	}
1440		1565
1441	void	1566	void
1442	ev_check_start (EV_P_ struct ev_check *w)	1567	ev_check_start (EV_P_ struct ev_check *w)
1443	{	1568	{
1444	if (ev_is_active (w))	1569	if (expect_false (ev_is_active (w)))
1445	return;	1570	return;
1446		1571
1447	ev_start (EV_A_ (W)w, ++checkcnt);	1572	ev_start (EV_A_ (W)w, ++checkcnt);
1448	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1573	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1449	checks [checkcnt - 1] = w;	1574	checks [checkcnt - 1] = w;
1450	}	1575	}
1451		1576
1452	void	1577	void
1453	ev_check_stop (EV_P_ struct ev_check *w)	1578	ev_check_stop (EV_P_ struct ev_check *w)
1454	{	1579	{
1455	ev_clear_pending (EV_A_ (W)w);	1580	ev_clear_pending (EV_A_ (W)w);
1456	if (ev_is_active (w))	1581	if (expect_false (!ev_is_active (w)))
1457	return;	1582	return;
1458		1583
1459	checks [((W)w)->active - 1] = checks [--checkcnt];	1584	checks [((W)w)->active - 1] = checks [--checkcnt];
1460	ev_stop (EV_A_ (W)w);	1585	ev_stop (EV_A_ (W)w);
1461	}	1586	}
…		…
1466		1591
1467	void	1592	void
1468	ev_signal_start (EV_P_ struct ev_signal *w)	1593	ev_signal_start (EV_P_ struct ev_signal *w)
1469	{	1594	{
1470	#if EV_MULTIPLICITY	1595	#if EV_MULTIPLICITY
1471	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1596	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1472	#endif	1597	#endif
1473	if (ev_is_active (w))	1598	if (expect_false (ev_is_active (w)))
1474	return;	1599	return;
1475		1600
1476	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1601	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1477		1602
1478	ev_start (EV_A_ (W)w, 1);	1603	ev_start (EV_A_ (W)w, 1);
1479	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1604	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1480	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1605	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1481		1606
1482	if (!((WL)w)->next)	1607	if (!((WL)w)->next)
1483	{	1608	{
1484	#if WIN32	1609	#if _WIN32
1485	signal (w->signum, sighandler);	1610	signal (w->signum, sighandler);
1486	#else	1611	#else
1487	struct sigaction sa;	1612	struct sigaction sa;
1488	sa.sa_handler = sighandler;	1613	sa.sa_handler = sighandler;
1489	sigfillset (&sa.sa_mask);	1614	sigfillset (&sa.sa_mask);
…		…
1495		1620
1496	void	1621	void
1497	ev_signal_stop (EV_P_ struct ev_signal *w)	1622	ev_signal_stop (EV_P_ struct ev_signal *w)
1498	{	1623	{
1499	ev_clear_pending (EV_A_ (W)w);	1624	ev_clear_pending (EV_A_ (W)w);
1500	if (!ev_is_active (w))	1625	if (expect_false (!ev_is_active (w)))
1501	return;	1626	return;
1502		1627
1503	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1628	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1504	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1505		1630
…		…
1509		1634
1510	void	1635	void
1511	ev_child_start (EV_P_ struct ev_child *w)	1636	ev_child_start (EV_P_ struct ev_child *w)
1512	{	1637	{
1513	#if EV_MULTIPLICITY	1638	#if EV_MULTIPLICITY
1514	assert (("child watchers are only supported in the default loop", loop == default_loop));	1639	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1515	#endif	1640	#endif
1516	if (ev_is_active (w))	1641	if (expect_false (ev_is_active (w)))
1517	return;	1642	return;
1518		1643
1519	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1520	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1645	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1521	}	1646	}
1522		1647
1523	void	1648	void
1524	ev_child_stop (EV_P_ struct ev_child *w)	1649	ev_child_stop (EV_P_ struct ev_child *w)
1525	{	1650	{
1526	ev_clear_pending (EV_A_ (W)w);	1651	ev_clear_pending (EV_A_ (W)w);
1527	if (ev_is_active (w))	1652	if (expect_false (!ev_is_active (w)))
1528	return;	1653	return;
1529		1654
1530	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1655	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1531	ev_stop (EV_A_ (W)w);	1656	ev_stop (EV_A_ (W)w);
1532	}	1657	}
…		…
1569	void	1694	void
1570	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1695	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1571	{	1696	{
1572	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1697	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1573		1698
1574	if (!once)	1699	if (expect_false (!once))
		1700	{
1575	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1701	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1576	else	1702	return;
1577	{	1703	}
		1704
1578	once->cb = cb;	1705	once->cb = cb;
1579	once->arg = arg;	1706	once->arg = arg;
1580		1707
1581	ev_init (&once->io, once_cb_io);	1708	ev_init (&once->io, once_cb_io);
1582	if (fd >= 0)	1709	if (fd >= 0)
1583	{	1710	{
1584	ev_io_set (&once->io, fd, events);	1711	ev_io_set (&once->io, fd, events);
1585	ev_io_start (EV_A_ &once->io);	1712	ev_io_start (EV_A_ &once->io);
1586	}	1713	}
1587		1714
1588	ev_init (&once->to, once_cb_to);	1715	ev_init (&once->to, once_cb_to);
1589	if (timeout >= 0.)	1716	if (timeout >= 0.)
1590	{	1717	{
1591	ev_timer_set (&once->to, timeout, 0.);	1718	ev_timer_set (&once->to, timeout, 0.);
1592	ev_timer_start (EV_A_ &once->to);	1719	ev_timer_start (EV_A_ &once->to);
1593	}
1594	}	1720	}
1595	}	1721	}
1596		1722
		1723	#ifdef __cplusplus
		1724	}
		1725	#endif
		1726

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Comparing libev/ev.c (file contents): Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs. Revision 1.131 by root, Fri Nov 23 05:43:45 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.131 by root, Fri Nov 23 05:43:45 2007 UTC