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

Comparing libev/ev.c (file contents):
Revision 1.83 by root, Fri Nov 9 21:48:23 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);
…		…
271	#endif	331	#endif
272		332
273	return ev_time ();	333	return ev_time ();
274	}	334	}
275		335
		336	#if EV_MULTIPLICITY
276	ev_tstamp	337	ev_tstamp
277	ev_now (EV_P)	338	ev_now (EV_P)
278	{	339	{
279	return rt_now;	340	return ev_rt_now;
280	}	341	}
		342	#endif
281		343
282	#define array_roundsize(type,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
283		345
284	#define array_needsize(type,base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
285	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
286	{ \	348	{ \
287	int newcnt = cur; \	349	int newcnt = cur; \
…		…
302	stem ## max = array_roundsize (stem ## cnt >> 1); \	364	stem ## max = array_roundsize (stem ## cnt >> 1); \
303	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
304	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
305	}	367	}
306		368
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) \	369	#define array_free(stem, idx) \
313	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;
314		371
315	/*****************************************************************************/	372	/*****************************************************************************/
316		373
…		…
330	void	387	void
331	ev_feed_event (EV_P_ void *w, int revents)	388	ev_feed_event (EV_P_ void *w, int revents)
332	{	389	{
333	W w_ = (W)w;	390	W w_ = (W)w;
334		391
335	if (w_->pending)	392	if (expect_false (w_->pending))
336	{	393	{
337	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
338	return;	395	return;
339	}	396	}
340		397
341	w_->pending = ++pendingcnt [ABSPRI (w_)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
342	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);
343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
345	}	402	}
346		403
347	static void	404	static void
…		…
374	fd_event (EV_A_ fd, revents);	431	fd_event (EV_A_ fd, revents);
375	}	432	}
376		433
377	/*****************************************************************************/	434	/*****************************************************************************/
378		435
379	static void	436	inline void
380	fd_reify (EV_P)	437	fd_reify (EV_P)
381	{	438	{
382	int i;	439	int i;
383		440
384	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
390	int events = 0;	447	int events = 0;
391		448
392	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)
393	events \|= w->events;	450	events \|= w->events;
394		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
395	anfd->reify = 0;	461	anfd->reify = 0;
396		462
397	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
398	anfd->events = events;	464	anfd->events = events;
399	}	465	}
400		466
401	fdchangecnt = 0;	467	fdchangecnt = 0;
402	}	468	}
403		469
404	static void	470	static void
405	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
406	{	472	{
407	if (anfds [fd].reify)	473	if (expect_false (anfds [fd].reify))
408	return;	474	return;
409		475
410	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
411		477
412	++fdchangecnt;	478	++fdchangecnt;
413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
414	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
415	}	481	}
416		482
417	static void	483	static void
418	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
424	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
425	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);
426	}	492	}
427	}	493	}
428		494
429	static int	495	inline int
430	fd_valid (int fd)	496	fd_valid (int fd)
431	{	497	{
432	#ifdef WIN32	498	#ifdef _WIN32
433	return !!win32_get_osfhandle (fd);	499	return _get_osfhandle (fd) != -1;
434	#else	500	#else
435	return fcntl (fd, F_GETFD) != -1;	501	return fcntl (fd, F_GETFD) != -1;
436	#endif	502	#endif
437	}	503	}
438		504
…		…
460	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
461	return;	527	return;
462	}	528	}
463	}	529	}
464		530
465	/* 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 */
466	static void	532	static void
467	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
468	{	534	{
469	int fd;	535	int fd;
470		536
…		…
518		584
519	heap [k] = w;	585	heap [k] = w;
520	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
521	}	587	}
522		588
		589	inline void
		590	adjustheap (WT *heap, int N, int k)
		591	{
		592	upheap (heap, k);
		593	downheap (heap, N, k);
		594	}
		595
523	/*****************************************************************************/	596	/*****************************************************************************/
524		597
525	typedef struct	598	typedef struct
526	{	599	{
527	WL head;	600	WL head;
…		…
548	}	621	}
549		622
550	static void	623	static void
551	sighandler (int signum)	624	sighandler (int signum)
552	{	625	{
553	#if WIN32	626	#if _WIN32
554	signal (signum, sighandler);	627	signal (signum, sighandler);
555	#endif	628	#endif
556		629
557	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
558		631
559	if (!gotsig)	632	if (!gotsig)
560	{	633	{
561	int old_errno = errno;	634	int old_errno = errno;
562	gotsig = 1;	635	gotsig = 1;
563	#ifdef WIN32
564	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
565	#else
566	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
567	#endif
568	errno = old_errno;	637	errno = old_errno;
569	}	638	}
570	}	639	}
571		640
572	void	641	void
573	ev_feed_signal_event (EV_P_ int signum)	642	ev_feed_signal_event (EV_P_ int signum)
574	{	643	{
575	WL w;	644	WL w;
576		645
577	#if EV_MULTIPLICITY	646	#if EV_MULTIPLICITY
578	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));
579	#endif	648	#endif
580		649
581	--signum;	650	--signum;
582		651
583	if (signum < 0 \|\| signum >= signalmax)	652	if (signum < 0 \|\| signum >= signalmax)
…		…
592	static void	661	static void
593	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
594	{	663	{
595	int signum;	664	int signum;
596		665
597	#ifdef WIN32
598	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
599	#else
600	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
601	#endif
602	gotsig = 0;	667	gotsig = 0;
603		668
604	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
605	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
606	ev_feed_signal_event (EV_A_ signum + 1);	671	ev_feed_signal_event (EV_A_ signum + 1);
607	}	672	}
608		673
609	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
610	siginit (EV_P)	687	siginit (EV_P)
611	{	688	{
612	#ifndef WIN32	689	fd_intern (sigpipe [0]);
613	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
614	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
615
616	/* rather than sort out wether we really need nb, set it */
617	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
618	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
619	#endif
620		691
621	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
622	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
623	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
624	}	695	}
625		696
626	/*****************************************************************************/	697	/*****************************************************************************/
627		698
628	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
629		700
630	#ifndef WIN32	701	#ifndef _WIN32
631		702
632	static struct ev_signal childev;	703	static struct ev_signal childev;
633		704
634	#ifndef WCONTINUED	705	#ifndef WCONTINUED
635	# define WCONTINUED 0	706	# define WCONTINUED 0
…		…
667		738
668	#endif	739	#endif
669		740
670	/*****************************************************************************/	741	/*****************************************************************************/
671		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
672	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
673	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
674	#endif	748	#endif
675	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
676	# include "ev_epoll.c"	750	# include "ev_epoll.c"
…		…
696		770
697	/* 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 */
698	static int	772	static int
699	enable_secure (void)	773	enable_secure (void)
700	{	774	{
701	#ifdef WIN32	775	#ifdef _WIN32
702	return 0;	776	return 0;
703	#else	777	#else
704	return getuid () != geteuid ()	778	return getuid () != geteuid ()
705	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
706	#endif	780	#endif
707	}	781	}
708		782
709	int	783	unsigned int
710	ev_method (EV_P)	784	ev_supported_backends (void)
711	{	785	{
712	return method;	786	unsigned int flags = 0;
713	}
714		787
715	static void	788	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
716	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)
717	{	799	{
718	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)
719	{	825	{
720	#if EV_USE_MONOTONIC	826	#if EV_USE_MONOTONIC
721	{	827	{
722	struct timespec ts;	828	struct timespec ts;
723	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	829	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
724	have_monotonic = 1;	830	have_monotonic = 1;
725	}	831	}
726	#endif	832	#endif
727		833
728	rt_now = ev_time ();	834	ev_rt_now = ev_time ();
729	mn_now = get_clock ();	835	mn_now = get_clock ();
730	now_floor = mn_now;	836	now_floor = mn_now;
731	rtmn_diff = rt_now - mn_now;	837	rtmn_diff = ev_rt_now - mn_now;
732		838
733	if (methods == EVMETHOD_AUTO)	839	if (!(flags & EVFLAG_NOENV)
734	if (!enable_secure () && getenv ("LIBEV_METHODS"))	840	&& !enable_secure ()
		841	&& getenv ("LIBEV_FLAGS"))
735	methods = atoi (getenv ("LIBEV_METHODS"));	842	flags = atoi (getenv ("LIBEV_FLAGS"));
736	else
737	methods = EVMETHOD_ANY;
738		843
739	method = 0;	844	if (!(flags & 0x0000ffffUL))
740	#if EV_USE_WIN32	845	flags \|= ev_recommended_backends ();
741	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);
742	#endif	850	#endif
743	#if EV_USE_KQUEUE	851	#if EV_USE_KQUEUE
744	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	852	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
745	#endif	853	#endif
746	#if EV_USE_EPOLL	854	#if EV_USE_EPOLL
747	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	855	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
748	#endif	856	#endif
749	#if EV_USE_POLL	857	#if EV_USE_POLL
750	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	858	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
751	#endif	859	#endif
752	#if EV_USE_SELECT	860	#if EV_USE_SELECT
753	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	861	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
754	#endif	862	#endif
755		863
756	ev_init (&sigev, sigcb);	864	ev_init (&sigev, sigcb);
757	ev_set_priority (&sigev, EV_MAXPRI);	865	ev_set_priority (&sigev, EV_MAXPRI);
758	}	866	}
759	}	867	}
760		868
761	void	869	static void
762	loop_destroy (EV_P)	870	loop_destroy (EV_P)
763	{	871	{
764	int i;	872	int i;
765		873
766	#if EV_USE_WIN32	874	#if EV_USE_PORT
767	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	875	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
768	#endif	876	#endif
769	#if EV_USE_KQUEUE	877	#if EV_USE_KQUEUE
770	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	878	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
771	#endif	879	#endif
772	#if EV_USE_EPOLL	880	#if EV_USE_EPOLL
773	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	881	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
774	#endif	882	#endif
775	#if EV_USE_POLL	883	#if EV_USE_POLL
776	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	884	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
777	#endif	885	#endif
778	#if EV_USE_SELECT	886	#if EV_USE_SELECT
779	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	887	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
780	#endif	888	#endif
781		889
782	for (i = NUMPRI; i--; )	890	for (i = NUMPRI; i--; )
783	array_free (pending, [i]);	891	array_free (pending, [i]);
784		892
785	/* have to use the microsoft-never-gets-it-right macro */	893	/* have to use the microsoft-never-gets-it-right macro */
786	array_free_microshit (fdchange);	894	array_free (fdchange, EMPTY0);
787	array_free_microshit (timer);	895	array_free (timer, EMPTY0);
788	array_free_microshit (periodic);	896	#if EV_PERIODICS
789	array_free_microshit (idle);	897	array_free (periodic, EMPTY0);
790	array_free_microshit (prepare);	898	#endif
791	array_free_microshit (check);	899	array_free (idle, EMPTY0);
		900	array_free (prepare, EMPTY0);
		901	array_free (check, EMPTY0);
792		902
793	method = 0;	903	backend = 0;
794	}	904	}
795		905
796	static void	906	static void
797	loop_fork (EV_P)	907	loop_fork (EV_P)
798	{	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
799	#if EV_USE_EPOLL	915	#if EV_USE_EPOLL
800	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	916	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
801	#endif
802	#if EV_USE_KQUEUE
803	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
804	#endif	917	#endif
805		918
806	if (ev_is_active (&sigev))	919	if (ev_is_active (&sigev))
807	{	920	{
808	/* default loop */	921	/* default loop */
…		…
821	postfork = 0;	934	postfork = 0;
822	}	935	}
823		936
824	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
825	struct ev_loop *	938	struct ev_loop *
826	ev_loop_new (int methods)	939	ev_loop_new (unsigned int flags)
827	{	940	{
828	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));
829		942
830	memset (loop, 0, sizeof (struct ev_loop));	943	memset (loop, 0, sizeof (struct ev_loop));
831		944
832	loop_init (EV_A_ methods);	945	loop_init (EV_A_ flags);
833		946
834	if (ev_method (EV_A))	947	if (ev_backend (EV_A))
835	return loop;	948	return loop;
836		949
837	return 0;	950	return 0;
838	}	951	}
839		952
…		…
852		965
853	#endif	966	#endif
854		967
855	#if EV_MULTIPLICITY	968	#if EV_MULTIPLICITY
856	struct ev_loop *	969	struct ev_loop *
		970	ev_default_loop_init (unsigned int flags)
857	#else	971	#else
858	int	972	int
		973	ev_default_loop (unsigned int flags)
859	#endif	974	#endif
860	ev_default_loop (int methods)
861	{	975	{
862	if (sigpipe [0] == sigpipe [1])	976	if (sigpipe [0] == sigpipe [1])
863	if (pipe (sigpipe))	977	if (pipe (sigpipe))
864	return 0;	978	return 0;
865		979
866	if (!default_loop)	980	if (!ev_default_loop_ptr)
867	{	981	{
868	#if EV_MULTIPLICITY	982	#if EV_MULTIPLICITY
869	struct ev_loop *loop = default_loop = &default_loop_struct;	983	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
870	#else	984	#else
871	default_loop = 1;	985	ev_default_loop_ptr = 1;
872	#endif	986	#endif
873		987
874	loop_init (EV_A_ methods);	988	loop_init (EV_A_ flags);
875		989
876	if (ev_method (EV_A))	990	if (ev_backend (EV_A))
877	{	991	{
878	siginit (EV_A);	992	siginit (EV_A);
879		993
880	#ifndef WIN32	994	#ifndef _WIN32
881	ev_signal_init (&childev, childcb, SIGCHLD);	995	ev_signal_init (&childev, childcb, SIGCHLD);
882	ev_set_priority (&childev, EV_MAXPRI);	996	ev_set_priority (&childev, EV_MAXPRI);
883	ev_signal_start (EV_A_ &childev);	997	ev_signal_start (EV_A_ &childev);
884	ev_unref (EV_A); /* child watcher should not keep loop alive */	998	ev_unref (EV_A); /* child watcher should not keep loop alive */
885	#endif	999	#endif
886	}	1000	}
887	else	1001	else
888	default_loop = 0;	1002	ev_default_loop_ptr = 0;
889	}	1003	}
890		1004
891	return default_loop;	1005	return ev_default_loop_ptr;
892	}	1006	}
893		1007
894	void	1008	void
895	ev_default_destroy (void)	1009	ev_default_destroy (void)
896	{	1010	{
897	#if EV_MULTIPLICITY	1011	#if EV_MULTIPLICITY
898	struct ev_loop *loop = default_loop;	1012	struct ev_loop *loop = ev_default_loop_ptr;
899	#endif	1013	#endif
900		1014
901	#ifndef WIN32	1015	#ifndef _WIN32
902	ev_ref (EV_A); /* child watcher */	1016	ev_ref (EV_A); /* child watcher */
903	ev_signal_stop (EV_A_ &childev);	1017	ev_signal_stop (EV_A_ &childev);
904	#endif	1018	#endif
905		1019
906	ev_ref (EV_A); /* signal watcher */	1020	ev_ref (EV_A); /* signal watcher */
…		…
914		1028
915	void	1029	void
916	ev_default_fork (void)	1030	ev_default_fork (void)
917	{	1031	{
918	#if EV_MULTIPLICITY	1032	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	1033	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	1034	#endif
921		1035
922	if (method)	1036	if (backend)
923	postfork = 1;	1037	postfork = 1;
924	}	1038	}
925		1039
926	/*****************************************************************************/	1040	/*****************************************************************************/
927		1041
…		…
935	return 1;	1049	return 1;
936		1050
937	return 0;	1051	return 0;
938	}	1052	}
939		1053
940	static void	1054	inline void
941	call_pending (EV_P)	1055	call_pending (EV_P)
942	{	1056	{
943	int pri;	1057	int pri;
944		1058
945	for (pri = NUMPRI; pri--; )	1059	for (pri = NUMPRI; pri--; )
946	while (pendingcnt [pri])	1060	while (pendingcnt [pri])
947	{	1061	{
948	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1062	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
949		1063
950	if (p->w)	1064	if (expect_true (p->w))
951	{	1065	{
952	p->w->pending = 0;	1066	p->w->pending = 0;
953	EV_CB_INVOKE (p->w, p->events);	1067	EV_CB_INVOKE (p->w, p->events);
954	}	1068	}
955	}	1069	}
956	}	1070	}
957		1071
958	static void	1072	inline void
959	timers_reify (EV_P)	1073	timers_reify (EV_P)
960	{	1074	{
961	while (timercnt && ((WT)timers [0])->at <= mn_now)	1075	while (timercnt && ((WT)timers [0])->at <= mn_now)
962	{	1076	{
963	struct ev_timer *w = timers [0];	1077	struct ev_timer *w = timers [0];
…		…
966		1080
967	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
968	if (w->repeat)	1082	if (w->repeat)
969	{	1083	{
970	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
971	((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
972	downheap ((WT *)timers, timercnt, 0);	1090	downheap ((WT *)timers, timercnt, 0);
973	}	1091	}
974	else	1092	else
975	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1093	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
976		1094
977	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1095	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
978	}	1096	}
979	}	1097	}
980		1098
981	static void	1099	#if EV_PERIODICS
		1100	inline void
982	periodics_reify (EV_P)	1101	periodics_reify (EV_P)
983	{	1102	{
984	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1103	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
985	{	1104	{
986	struct ev_periodic *w = periodics [0];	1105	struct ev_periodic *w = periodics [0];
987		1106
988	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1107	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
989		1108
990	/* first reschedule or stop timer */	1109	/* first reschedule or stop timer */
991	if (w->reschedule_cb)	1110	if (w->reschedule_cb)
992	{	1111	{
993	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
994
995	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1113	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
996	downheap ((WT *)periodics, periodiccnt, 0);	1114	downheap ((WT *)periodics, periodiccnt, 0);
997	}	1115	}
998	else if (w->interval)	1116	else if (w->interval)
999	{	1117	{
1000	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1118	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
1001	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1119	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1002	downheap ((WT *)periodics, periodiccnt, 0);	1120	downheap ((WT *)periodics, periodiccnt, 0);
1003	}	1121	}
1004	else	1122	else
1005	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1123	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1006		1124
…		…
1017	for (i = 0; i < periodiccnt; ++i)	1135	for (i = 0; i < periodiccnt; ++i)
1018	{	1136	{
1019	struct ev_periodic *w = periodics [i];	1137	struct ev_periodic *w = periodics [i];
1020		1138
1021	if (w->reschedule_cb)	1139	if (w->reschedule_cb)
1022	((WT)w)->at = w->reschedule_cb (w, rt_now);	1140	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1023	else if (w->interval)	1141	else if (w->interval)
1024	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1142	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1025	}	1143	}
1026		1144
1027	/* now rebuild the heap */	1145	/* now rebuild the heap */
1028	for (i = periodiccnt >> 1; i--; )	1146	for (i = periodiccnt >> 1; i--; )
1029	downheap ((WT *)periodics, periodiccnt, i);	1147	downheap ((WT *)periodics, periodiccnt, i);
1030	}	1148	}
		1149	#endif
1031		1150
1032	inline int	1151	inline int
1033	time_update_monotonic (EV_P)	1152	time_update_monotonic (EV_P)
1034	{	1153	{
1035	mn_now = get_clock ();	1154	mn_now = get_clock ();
1036		1155
1037	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1156	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1038	{	1157	{
1039	rt_now = rtmn_diff + mn_now;	1158	ev_rt_now = rtmn_diff + mn_now;
1040	return 0;	1159	return 0;
1041	}	1160	}
1042	else	1161	else
1043	{	1162	{
1044	now_floor = mn_now;	1163	now_floor = mn_now;
1045	rt_now = ev_time ();	1164	ev_rt_now = ev_time ();
1046	return 1;	1165	return 1;
1047	}	1166	}
1048	}	1167	}
1049		1168
1050	static void	1169	inline void
1051	time_update (EV_P)	1170	time_update (EV_P)
1052	{	1171	{
1053	int i;	1172	int i;
1054		1173
1055	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
…		…
1059	{	1178	{
1060	ev_tstamp odiff = rtmn_diff;	1179	ev_tstamp odiff = rtmn_diff;
1061		1180
1062	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1181	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1063	{	1182	{
1064	rtmn_diff = rt_now - mn_now;	1183	rtmn_diff = ev_rt_now - mn_now;
1065		1184
1066	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1185	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1067	return; /* all is well */	1186	return; /* all is well */
1068		1187
1069	rt_now = ev_time ();	1188	ev_rt_now = ev_time ();
1070	mn_now = get_clock ();	1189	mn_now = get_clock ();
1071	now_floor = mn_now;	1190	now_floor = mn_now;
1072	}	1191	}
1073		1192
		1193	# if EV_PERIODICS
1074	periodics_reschedule (EV_A);	1194	periodics_reschedule (EV_A);
		1195	# endif
1075	/* no timer adjustment, as the monotonic clock doesn't jump */	1196	/* no timer adjustment, as the monotonic clock doesn't jump */
1076	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1197	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1077	}	1198	}
1078	}	1199	}
1079	else	1200	else
1080	#endif	1201	#endif
1081	{	1202	{
1082	rt_now = ev_time ();	1203	ev_rt_now = ev_time ();
1083		1204
1084	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1205	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1085	{	1206	{
		1207	#if EV_PERIODICS
1086	periodics_reschedule (EV_A);	1208	periodics_reschedule (EV_A);
		1209	#endif
1087		1210
1088	/* 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 */
1089	for (i = 0; i < timercnt; ++i)	1212	for (i = 0; i < timercnt; ++i)
1090	((WT)timers [i])->at += rt_now - mn_now;	1213	((WT)timers [i])->at += ev_rt_now - mn_now;
1091	}	1214	}
1092		1215
1093	mn_now = rt_now;	1216	mn_now = ev_rt_now;
1094	}	1217	}
1095	}	1218	}
1096		1219
1097	void	1220	void
1098	ev_ref (EV_P)	1221	ev_ref (EV_P)
…		…
1112	ev_loop (EV_P_ int flags)	1235	ev_loop (EV_P_ int flags)
1113	{	1236	{
1114	double block;	1237	double block;
1115	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1238	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1116		1239
1117	do	1240	while (activecnt)
1118	{	1241	{
1119	/* queue check watchers (and execute them) */	1242	/* queue check watchers (and execute them) */
1120	if (expect_false (preparecnt))	1243	if (expect_false (preparecnt))
1121	{	1244	{
1122	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1245	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1138	if (expect_true (have_monotonic))	1261	if (expect_true (have_monotonic))
1139	time_update_monotonic (EV_A);	1262	time_update_monotonic (EV_A);
1140	else	1263	else
1141	#endif	1264	#endif
1142	{	1265	{
1143	rt_now = ev_time ();	1266	ev_rt_now = ev_time ();
1144	mn_now = rt_now;	1267	mn_now = ev_rt_now;
1145	}	1268	}
1146		1269
1147	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1270	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1148	block = 0.;	1271	block = 0.;
1149	else	1272	else
1150	{	1273	{
1151	block = MAX_BLOCKTIME;	1274	block = MAX_BLOCKTIME;
1152		1275
1153	if (timercnt)	1276	if (timercnt)
1154	{	1277	{
1155	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1278	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1156	if (block > to) block = to;	1279	if (block > to) block = to;
1157	}	1280	}
1158		1281
		1282	#if EV_PERIODICS
1159	if (periodiccnt)	1283	if (periodiccnt)
1160	{	1284	{
1161	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1285	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1162	if (block > to) block = to;	1286	if (block > to) block = to;
1163	}	1287	}
		1288	#endif
1164		1289
1165	if (block < 0.) block = 0.;	1290	if (expect_false (block < 0.)) block = 0.;
1166	}	1291	}
1167		1292
1168	method_poll (EV_A_ block);	1293	backend_poll (EV_A_ block);
1169		1294
1170	/* update rt_now, do magic */	1295	/* update ev_rt_now, do magic */
1171	time_update (EV_A);	1296	time_update (EV_A);
1172		1297
1173	/* queue pending timers and reschedule them */	1298	/* queue pending timers and reschedule them */
1174	timers_reify (EV_A); /* relative timers called last */	1299	timers_reify (EV_A); /* relative timers called last */
		1300	#if EV_PERIODICS
1175	periodics_reify (EV_A); /* absolute timers called first */	1301	periodics_reify (EV_A); /* absolute timers called first */
		1302	#endif
1176		1303
1177	/* queue idle watchers unless io or timers are pending */	1304	/* queue idle watchers unless io or timers are pending */
1178	if (idlecnt && !any_pending (EV_A))	1305	if (idlecnt && !any_pending (EV_A))
1179	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1306	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1180		1307
1181	/* queue check watchers, to be executed first */	1308	/* queue check watchers, to be executed first */
1182	if (checkcnt)	1309	if (expect_false (checkcnt))
1183	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1310	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1184		1311
1185	call_pending (EV_A);	1312	call_pending (EV_A);
		1313
		1314	if (expect_false (loop_done))
		1315	break;
1186	}	1316	}
1187	while (activecnt && !loop_done);
1188		1317
1189	if (loop_done != 2)	1318	if (loop_done != 2)
1190	loop_done = 0;	1319	loop_done = 0;
1191	}	1320	}
1192		1321
…		…
1252	void	1381	void
1253	ev_io_start (EV_P_ struct ev_io *w)	1382	ev_io_start (EV_P_ struct ev_io *w)
1254	{	1383	{
1255	int fd = w->fd;	1384	int fd = w->fd;
1256		1385
1257	if (ev_is_active (w))	1386	if (expect_false (ev_is_active (w)))
1258	return;	1387	return;
1259		1388
1260	assert (("ev_io_start called with negative fd", fd >= 0));	1389	assert (("ev_io_start called with negative fd", fd >= 0));
1261		1390
1262	ev_start (EV_A_ (W)w, 1);	1391	ev_start (EV_A_ (W)w, 1);
…		…
1268		1397
1269	void	1398	void
1270	ev_io_stop (EV_P_ struct ev_io *w)	1399	ev_io_stop (EV_P_ struct ev_io *w)
1271	{	1400	{
1272	ev_clear_pending (EV_A_ (W)w);	1401	ev_clear_pending (EV_A_ (W)w);
1273	if (!ev_is_active (w))	1402	if (expect_false (!ev_is_active (w)))
1274	return;	1403	return;
		1404
		1405	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1275		1406
1276	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1407	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1277	ev_stop (EV_A_ (W)w);	1408	ev_stop (EV_A_ (W)w);
1278		1409
1279	fd_change (EV_A_ w->fd);	1410	fd_change (EV_A_ w->fd);
1280	}	1411	}
1281		1412
1282	void	1413	void
1283	ev_timer_start (EV_P_ struct ev_timer *w)	1414	ev_timer_start (EV_P_ struct ev_timer *w)
1284	{	1415	{
1285	if (ev_is_active (w))	1416	if (expect_false (ev_is_active (w)))
1286	return;	1417	return;
1287		1418
1288	((WT)w)->at += mn_now;	1419	((WT)w)->at += mn_now;
1289		1420
1290	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.));
1291		1422
1292	ev_start (EV_A_ (W)w, ++timercnt);	1423	ev_start (EV_A_ (W)w, ++timercnt);
1293	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1424	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1294	timers [timercnt - 1] = w;	1425	timers [timercnt - 1] = w;
1295	upheap ((WT *)timers, timercnt - 1);	1426	upheap ((WT *)timers, timercnt - 1);
1296		1427
1297	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1428	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1298	}	1429	}
1299		1430
1300	void	1431	void
1301	ev_timer_stop (EV_P_ struct ev_timer *w)	1432	ev_timer_stop (EV_P_ struct ev_timer *w)
1302	{	1433	{
1303	ev_clear_pending (EV_A_ (W)w);	1434	ev_clear_pending (EV_A_ (W)w);
1304	if (!ev_is_active (w))	1435	if (expect_false (!ev_is_active (w)))
1305	return;	1436	return;
1306		1437
1307	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1438	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1308		1439
1309	if (((W)w)->active < timercnt--)	1440	if (expect_true (((W)w)->active < timercnt--))
1310	{	1441	{
1311	timers [((W)w)->active - 1] = timers [timercnt];	1442	timers [((W)w)->active - 1] = timers [timercnt];
1312	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1443	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1313	}	1444	}
1314		1445
1315	((WT)w)->at = w->repeat;	1446	((WT)w)->at -= mn_now;
1316		1447
1317	ev_stop (EV_A_ (W)w);	1448	ev_stop (EV_A_ (W)w);
1318	}	1449	}
1319		1450
1320	void	1451	void
…		…
1323	if (ev_is_active (w))	1454	if (ev_is_active (w))
1324	{	1455	{
1325	if (w->repeat)	1456	if (w->repeat)
1326	{	1457	{
1327	((WT)w)->at = mn_now + w->repeat;	1458	((WT)w)->at = mn_now + w->repeat;
1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1329	}	1460	}
1330	else	1461	else
1331	ev_timer_stop (EV_A_ w);	1462	ev_timer_stop (EV_A_ w);
1332	}	1463	}
1333	else if (w->repeat)	1464	else if (w->repeat)
		1465	{
		1466	w->at = w->repeat;
1334	ev_timer_start (EV_A_ w);	1467	ev_timer_start (EV_A_ w);
		1468	}
1335	}	1469	}
1336		1470
		1471	#if EV_PERIODICS
1337	void	1472	void
1338	ev_periodic_start (EV_P_ struct ev_periodic *w)	1473	ev_periodic_start (EV_P_ struct ev_periodic *w)
1339	{	1474	{
1340	if (ev_is_active (w))	1475	if (expect_false (ev_is_active (w)))
1341	return;	1476	return;
1342		1477
1343	if (w->reschedule_cb)	1478	if (w->reschedule_cb)
1344	((WT)w)->at = w->reschedule_cb (w, rt_now);	1479	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1345	else if (w->interval)	1480	else if (w->interval)
1346	{	1481	{
1347	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1482	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1348	/* 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 */
1349	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1484	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1350	}	1485	}
1351		1486
1352	ev_start (EV_A_ (W)w, ++periodiccnt);	1487	ev_start (EV_A_ (W)w, ++periodiccnt);
1353	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1488	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1354	periodics [periodiccnt - 1] = w;	1489	periodics [periodiccnt - 1] = w;
1355	upheap ((WT *)periodics, periodiccnt - 1);	1490	upheap ((WT *)periodics, periodiccnt - 1);
1356		1491
1357	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1492	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1358	}	1493	}
1359		1494
1360	void	1495	void
1361	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1496	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1362	{	1497	{
1363	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1364	if (!ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1365	return;	1500	return;
1366		1501
1367	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1502	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1368		1503
1369	if (((W)w)->active < periodiccnt--)	1504	if (expect_true (((W)w)->active < periodiccnt--))
1370	{	1505	{
1371	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1506	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1372	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1507	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1373	}	1508	}
1374		1509
1375	ev_stop (EV_A_ (W)w);	1510	ev_stop (EV_A_ (W)w);
1376	}	1511	}
1377		1512
1378	void	1513	void
1379	ev_periodic_again (EV_P_ struct ev_periodic *w)	1514	ev_periodic_again (EV_P_ struct ev_periodic *w)
1380	{	1515	{
		1516	/* TODO: use adjustheap and recalculation */
1381	ev_periodic_stop (EV_A_ w);	1517	ev_periodic_stop (EV_A_ w);
1382	ev_periodic_start (EV_A_ w);	1518	ev_periodic_start (EV_A_ w);
1383	}	1519	}
		1520	#endif
1384		1521
1385	void	1522	void
1386	ev_idle_start (EV_P_ struct ev_idle *w)	1523	ev_idle_start (EV_P_ struct ev_idle *w)
1387	{	1524	{
1388	if (ev_is_active (w))	1525	if (expect_false (ev_is_active (w)))
1389	return;	1526	return;
1390		1527
1391	ev_start (EV_A_ (W)w, ++idlecnt);	1528	ev_start (EV_A_ (W)w, ++idlecnt);
1392	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1529	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1393	idles [idlecnt - 1] = w;	1530	idles [idlecnt - 1] = w;
1394	}	1531	}
1395		1532
1396	void	1533	void
1397	ev_idle_stop (EV_P_ struct ev_idle *w)	1534	ev_idle_stop (EV_P_ struct ev_idle *w)
1398	{	1535	{
1399	ev_clear_pending (EV_A_ (W)w);	1536	ev_clear_pending (EV_A_ (W)w);
1400	if (ev_is_active (w))	1537	if (expect_false (!ev_is_active (w)))
1401	return;	1538	return;
1402		1539
1403	idles [((W)w)->active - 1] = idles [--idlecnt];	1540	idles [((W)w)->active - 1] = idles [--idlecnt];
1404	ev_stop (EV_A_ (W)w);	1541	ev_stop (EV_A_ (W)w);
1405	}	1542	}
1406		1543
1407	void	1544	void
1408	ev_prepare_start (EV_P_ struct ev_prepare *w)	1545	ev_prepare_start (EV_P_ struct ev_prepare *w)
1409	{	1546	{
1410	if (ev_is_active (w))	1547	if (expect_false (ev_is_active (w)))
1411	return;	1548	return;
1412		1549
1413	ev_start (EV_A_ (W)w, ++preparecnt);	1550	ev_start (EV_A_ (W)w, ++preparecnt);
1414	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1551	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1415	prepares [preparecnt - 1] = w;	1552	prepares [preparecnt - 1] = w;
1416	}	1553	}
1417		1554
1418	void	1555	void
1419	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1556	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1420	{	1557	{
1421	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1559	if (expect_false (!ev_is_active (w)))
1423	return;	1560	return;
1424		1561
1425	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1562	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1426	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1427	}	1564	}
1428		1565
1429	void	1566	void
1430	ev_check_start (EV_P_ struct ev_check *w)	1567	ev_check_start (EV_P_ struct ev_check *w)
1431	{	1568	{
1432	if (ev_is_active (w))	1569	if (expect_false (ev_is_active (w)))
1433	return;	1570	return;
1434		1571
1435	ev_start (EV_A_ (W)w, ++checkcnt);	1572	ev_start (EV_A_ (W)w, ++checkcnt);
1436	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1573	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1437	checks [checkcnt - 1] = w;	1574	checks [checkcnt - 1] = w;
1438	}	1575	}
1439		1576
1440	void	1577	void
1441	ev_check_stop (EV_P_ struct ev_check *w)	1578	ev_check_stop (EV_P_ struct ev_check *w)
1442	{	1579	{
1443	ev_clear_pending (EV_A_ (W)w);	1580	ev_clear_pending (EV_A_ (W)w);
1444	if (ev_is_active (w))	1581	if (expect_false (!ev_is_active (w)))
1445	return;	1582	return;
1446		1583
1447	checks [((W)w)->active - 1] = checks [--checkcnt];	1584	checks [((W)w)->active - 1] = checks [--checkcnt];
1448	ev_stop (EV_A_ (W)w);	1585	ev_stop (EV_A_ (W)w);
1449	}	1586	}
…		…
1454		1591
1455	void	1592	void
1456	ev_signal_start (EV_P_ struct ev_signal *w)	1593	ev_signal_start (EV_P_ struct ev_signal *w)
1457	{	1594	{
1458	#if EV_MULTIPLICITY	1595	#if EV_MULTIPLICITY
1459	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));
1460	#endif	1597	#endif
1461	if (ev_is_active (w))	1598	if (expect_false (ev_is_active (w)))
1462	return;	1599	return;
1463		1600
1464	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));
1465		1602
1466	ev_start (EV_A_ (W)w, 1);	1603	ev_start (EV_A_ (W)w, 1);
1467	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1604	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1468	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1605	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1469		1606
1470	if (!((WL)w)->next)	1607	if (!((WL)w)->next)
1471	{	1608	{
1472	#if WIN32	1609	#if _WIN32
1473	signal (w->signum, sighandler);	1610	signal (w->signum, sighandler);
1474	#else	1611	#else
1475	struct sigaction sa;	1612	struct sigaction sa;
1476	sa.sa_handler = sighandler;	1613	sa.sa_handler = sighandler;
1477	sigfillset (&sa.sa_mask);	1614	sigfillset (&sa.sa_mask);
…		…
1483		1620
1484	void	1621	void
1485	ev_signal_stop (EV_P_ struct ev_signal *w)	1622	ev_signal_stop (EV_P_ struct ev_signal *w)
1486	{	1623	{
1487	ev_clear_pending (EV_A_ (W)w);	1624	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1625	if (expect_false (!ev_is_active (w)))
1489	return;	1626	return;
1490		1627
1491	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1628	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1492	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1493		1630
…		…
1497		1634
1498	void	1635	void
1499	ev_child_start (EV_P_ struct ev_child *w)	1636	ev_child_start (EV_P_ struct ev_child *w)
1500	{	1637	{
1501	#if EV_MULTIPLICITY	1638	#if EV_MULTIPLICITY
1502	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));
1503	#endif	1640	#endif
1504	if (ev_is_active (w))	1641	if (expect_false (ev_is_active (w)))
1505	return;	1642	return;
1506		1643
1507	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1508	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1645	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1509	}	1646	}
1510		1647
1511	void	1648	void
1512	ev_child_stop (EV_P_ struct ev_child *w)	1649	ev_child_stop (EV_P_ struct ev_child *w)
1513	{	1650	{
1514	ev_clear_pending (EV_A_ (W)w);	1651	ev_clear_pending (EV_A_ (W)w);
1515	if (ev_is_active (w))	1652	if (expect_false (!ev_is_active (w)))
1516	return;	1653	return;
1517		1654
1518	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1655	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1519	ev_stop (EV_A_ (W)w);	1656	ev_stop (EV_A_ (W)w);
1520	}	1657	}
…		…
1557	void	1694	void
1558	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)
1559	{	1696	{
1560	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));
1561		1698
1562	if (!once)	1699	if (expect_false (!once))
		1700	{
1563	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1701	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1564	else	1702	return;
1565	{	1703	}
		1704
1566	once->cb = cb;	1705	once->cb = cb;
1567	once->arg = arg;	1706	once->arg = arg;
1568		1707
1569	ev_init (&once->io, once_cb_io);	1708	ev_init (&once->io, once_cb_io);
1570	if (fd >= 0)	1709	if (fd >= 0)
1571	{	1710	{
1572	ev_io_set (&once->io, fd, events);	1711	ev_io_set (&once->io, fd, events);
1573	ev_io_start (EV_A_ &once->io);	1712	ev_io_start (EV_A_ &once->io);
1574	}	1713	}
1575		1714
1576	ev_init (&once->to, once_cb_to);	1715	ev_init (&once->to, once_cb_to);
1577	if (timeout >= 0.)	1716	if (timeout >= 0.)
1578	{	1717	{
1579	ev_timer_set (&once->to, timeout, 0.);	1718	ev_timer_set (&once->to, timeout, 0.);
1580	ev_timer_start (EV_A_ &once->to);	1719	ev_timer_start (EV_A_ &once->to);
1581	}
1582	}	1720	}
1583	}	1721	}
1584		1722
		1723	#ifdef __cplusplus
		1724	}
		1725	#endif
		1726

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Comparing libev/ev.c (file contents): Revision 1.83 by root, Fri Nov 9 21:48:23 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 1.83 by root, Fri Nov 9 21:48:23 2007 UTC vs.
Revision 1.131 by root, Fri Nov 23 05:43:45 2007 UTC