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

Comparing libev/ev.c (file contents):
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC vs.
Revision 1.125 by root, Sat Nov 17 02:28:43 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
		62	# endif
		63
		64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
53	# endif	66	# endif
54		67
55	#endif	68	#endif
56		69
57	#include <math.h>	70	#include <math.h>
…		…
66	#include <sys/types.h>	79	#include <sys/types.h>
67	#include <time.h>	80	#include <time.h>
68		81
69	#include <signal.h>	82	#include <signal.h>
70		83
71	#ifndef WIN32	84	#ifndef _WIN32
72	# include <unistd.h>	85	# include <unistd.h>
73	# include <sys/time.h>	86	# include <sys/time.h>
74	# include <sys/wait.h>	87	# include <sys/wait.h>
		88	#else
		89	# define WIN32_LEAN_AND_MEAN
		90	# include <windows.h>
		91	# ifndef EV_SELECT_IS_WINSOCKET
		92	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	93	# endif
		94	#endif
		95
76	/**/	96	/**/
77		97
78	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 0
		100	#endif
		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 0
80	#endif	104	#endif
81		105
82	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
84	#endif	108	#endif
85		109
86	#ifndef EV_USE_POLL	110	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	111	# ifdef _WIN32
		112	# define EV_USE_POLL 0
		113	# else
		114	# define EV_USE_POLL 1
		115	# endif
88	#endif	116	#endif
89		117
90	#ifndef EV_USE_EPOLL	118	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	119	# define EV_USE_EPOLL 0
92	#endif	120	#endif
93		121
94	#ifndef EV_USE_KQUEUE	122	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	123	# define EV_USE_KQUEUE 0
96	#endif	124	#endif
97		125
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	126	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	127	# define EV_USE_PORT 0
110	#endif	128	#endif
111		129
112	/**/	130	/**/
		131
		132	/* darwin simply cannot be helped */
		133	#ifdef __APPLE__
		134	# undef EV_USE_POLL
		135	# undef EV_USE_KQUEUE
		136	#endif
113		137
114	#ifndef CLOCK_MONOTONIC	138	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	139	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	140	# define EV_USE_MONOTONIC 0
117	#endif	141	#endif
…		…
119	#ifndef CLOCK_REALTIME	143	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	144	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	145	# define EV_USE_REALTIME 0
122	#endif	146	#endif
123		147
		148	#if EV_SELECT_IS_WINSOCKET
		149	# include <winsock.h>
		150	#endif
		151
124	/**/	152	/**/
125		153
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	154	#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) */	155	#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 */	156	#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 */	157	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		158
		159	#ifdef EV_H
		160	# include EV_H
		161	#else
131	#include "ev.h"	162	# include "ev.h"
		163	#endif
132		164
133	#if __GNUC__ >= 3	165	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	166	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	167	# define inline static inline
136	#else	168	#else
137	# define expect(expr,value) (expr)	169	# define expect(expr,value) (expr)
138	# define inline static	170	# define inline static
139	#endif	171	#endif
140		172
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	174	#define expect_true(expr) expect ((expr) != 0, 1)
143		175
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	176	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	177	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		178
		179	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		180	#define EMPTY2(a,b) /* used to suppress some warnings */
		181
147	typedef struct ev_watcher *W;	182	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	183	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	184	typedef struct ev_watcher_time *WT;
150		185
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	186	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		187
		188	#ifdef _WIN32
153	#include "ev_win32.c"	189	# include "ev_win32.c"
		190	#endif
154		191
155	/*****************************************************************************/	192	/*****************************************************************************/
156		193
157	static void (syserr_cb)(const char msg);	194	static void (syserr_cb)(const char msg);
158		195
…		…
205	typedef struct	242	typedef struct
206	{	243	{
207	WL head;	244	WL head;
208	unsigned char events;	245	unsigned char events;
209	unsigned char reify;	246	unsigned char reify;
		247	#if EV_SELECT_IS_WINSOCKET
		248	SOCKET handle;
		249	#endif
210	} ANFD;	250	} ANFD;
211		251
212	typedef struct	252	typedef struct
213	{	253	{
214	W w;	254	W w;
…		…
217		257
218	#if EV_MULTIPLICITY	258	#if EV_MULTIPLICITY
219		259
220	struct ev_loop	260	struct ev_loop
221	{	261	{
		262	ev_tstamp ev_rt_now;
		263	#define ev_rt_now ((loop)->ev_rt_now)
222	#define VAR(name,decl) decl;	264	#define VAR(name,decl) decl;
223	#include "ev_vars.h"	265	#include "ev_vars.h"
224	#undef VAR	266	#undef VAR
225	};	267	};
226	#include "ev_wrap.h"	268	#include "ev_wrap.h"
227		269
228	struct ev_loop default_loop_struct;	270	static struct ev_loop default_loop_struct;
229	static struct ev_loop *default_loop;	271	struct ev_loop *ev_default_loop_ptr;
230		272
231	#else	273	#else
232		274
		275	ev_tstamp ev_rt_now;
233	#define VAR(name,decl) static decl;	276	#define VAR(name,decl) static decl;
234	#include "ev_vars.h"	277	#include "ev_vars.h"
235	#undef VAR	278	#undef VAR
236		279
237	static int default_loop;	280	static int ev_default_loop_ptr;
238		281
239	#endif	282	#endif
240		283
241	/*****************************************************************************/	284	/*****************************************************************************/
242		285
243	inline ev_tstamp	286	ev_tstamp
244	ev_time (void)	287	ev_time (void)
245	{	288	{
246	#if EV_USE_REALTIME	289	#if EV_USE_REALTIME
247	struct timespec ts;	290	struct timespec ts;
248	clock_gettime (CLOCK_REALTIME, &ts);	291	clock_gettime (CLOCK_REALTIME, &ts);
…		…
267	#endif	310	#endif
268		311
269	return ev_time ();	312	return ev_time ();
270	}	313	}
271		314
		315	#if EV_MULTIPLICITY
272	ev_tstamp	316	ev_tstamp
273	ev_now (EV_P)	317	ev_now (EV_P)
274	{	318	{
275	return rt_now;	319	return ev_rt_now;
276	}	320	}
		321	#endif
277		322
278	#define array_roundsize(type,n) ((n) \| 4 & ~3)	323	#define array_roundsize(type,n) (((n) \| 4) & ~3)
279		324
280	#define array_needsize(type,base,cur,cnt,init) \	325	#define array_needsize(type,base,cur,cnt,init) \
281	if (expect_false ((cnt) > cur)) \	326	if (expect_false ((cnt) > cur)) \
282	{ \	327	{ \
283	int newcnt = cur; \	328	int newcnt = cur; \
…		…
298	stem ## max = array_roundsize (stem ## cnt >> 1); \	343	stem ## max = array_roundsize (stem ## cnt >> 1); \
299	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	344	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
300	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	345	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
301	}	346	}
302		347
303	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
304	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
305	#define array_free_microshit(stem) \
306	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
307
308	#define array_free(stem, idx) \	348	#define array_free(stem, idx) \
309	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	349	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
310		350
311	/*****************************************************************************/	351	/*****************************************************************************/
312		352
…		…
326	void	366	void
327	ev_feed_event (EV_P_ void *w, int revents)	367	ev_feed_event (EV_P_ void *w, int revents)
328	{	368	{
329	W w_ = (W)w;	369	W w_ = (W)w;
330		370
331	if (w_->pending)	371	if (expect_false (w_->pending))
332	{	372	{
333	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	373	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
334	return;	374	return;
335	}	375	}
336		376
337	w_->pending = ++pendingcnt [ABSPRI (w_)];	377	w_->pending = ++pendingcnt [ABSPRI (w_)];
338	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	378	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
339	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	379	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
340	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	380	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
341	}	381	}
342		382
343	static void	383	static void
…		…
370	fd_event (EV_A_ fd, revents);	410	fd_event (EV_A_ fd, revents);
371	}	411	}
372		412
373	/*****************************************************************************/	413	/*****************************************************************************/
374		414
375	static void	415	inline void
376	fd_reify (EV_P)	416	fd_reify (EV_P)
377	{	417	{
378	int i;	418	int i;
379		419
380	for (i = 0; i < fdchangecnt; ++i)	420	for (i = 0; i < fdchangecnt; ++i)
…		…
386	int events = 0;	426	int events = 0;
387		427
388	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	428	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
389	events \|= w->events;	429	events \|= w->events;
390		430
		431	#if EV_SELECT_IS_WINSOCKET
		432	if (events)
		433	{
		434	unsigned long argp;
		435	anfd->handle = _get_osfhandle (fd);
		436	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		437	}
		438	#endif
		439
391	anfd->reify = 0;	440	anfd->reify = 0;
392		441
393	method_modify (EV_A_ fd, anfd->events, events);	442	method_modify (EV_A_ fd, anfd->events, events);
394	anfd->events = events;	443	anfd->events = events;
395	}	444	}
…		…
398	}	447	}
399		448
400	static void	449	static void
401	fd_change (EV_P_ int fd)	450	fd_change (EV_P_ int fd)
402	{	451	{
403	if (anfds [fd].reify)	452	if (expect_false (anfds [fd].reify))
404	return;	453	return;
405		454
406	anfds [fd].reify = 1;	455	anfds [fd].reify = 1;
407		456
408	++fdchangecnt;	457	++fdchangecnt;
409	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	458	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
410	fdchanges [fdchangecnt - 1] = fd;	459	fdchanges [fdchangecnt - 1] = fd;
411	}	460	}
412		461
413	static void	462	static void
414	fd_kill (EV_P_ int fd)	463	fd_kill (EV_P_ int fd)
…		…
420	ev_io_stop (EV_A_ w);	469	ev_io_stop (EV_A_ w);
421	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	470	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
422	}	471	}
423	}	472	}
424		473
425	static int	474	inline int
426	fd_valid (int fd)	475	fd_valid (int fd)
427	{	476	{
428	#ifdef WIN32	477	#ifdef _WIN32
429	return !!win32_get_osfhandle (fd);	478	return _get_osfhandle (fd) != -1;
430	#else	479	#else
431	return fcntl (fd, F_GETFD) != -1;	480	return fcntl (fd, F_GETFD) != -1;
432	#endif	481	#endif
433	}	482	}
434		483
…		…
514		563
515	heap [k] = w;	564	heap [k] = w;
516	((W)heap [k])->active = k + 1;	565	((W)heap [k])->active = k + 1;
517	}	566	}
518		567
		568	inline void
		569	adjustheap (WT *heap, int N, int k)
		570	{
		571	upheap (heap, k);
		572	downheap (heap, N, k);
		573	}
		574
519	/*****************************************************************************/	575	/*****************************************************************************/
520		576
521	typedef struct	577	typedef struct
522	{	578	{
523	WL head;	579	WL head;
…		…
544	}	600	}
545		601
546	static void	602	static void
547	sighandler (int signum)	603	sighandler (int signum)
548	{	604	{
549	#if WIN32	605	#if _WIN32
550	signal (signum, sighandler);	606	signal (signum, sighandler);
551	#endif	607	#endif
552		608
553	signals [signum - 1].gotsig = 1;	609	signals [signum - 1].gotsig = 1;
554		610
555	if (!gotsig)	611	if (!gotsig)
556	{	612	{
557	int old_errno = errno;	613	int old_errno = errno;
558	gotsig = 1;	614	gotsig = 1;
559	#ifdef WIN32
560	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
561	#else
562	write (sigpipe [1], &signum, 1);	615	write (sigpipe [1], &signum, 1);
563	#endif
564	errno = old_errno;	616	errno = old_errno;
565	}	617	}
566	}	618	}
567		619
568	void	620	void
569	ev_feed_signal_event (EV_P_ int signum)	621	ev_feed_signal_event (EV_P_ int signum)
570	{	622	{
571	WL w;	623	WL w;
572		624
573	#if EV_MULTIPLICITY	625	#if EV_MULTIPLICITY
574	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	626	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
575	#endif	627	#endif
576		628
577	--signum;	629	--signum;
578		630
579	if (signum < 0 \|\| signum >= signalmax)	631	if (signum < 0 \|\| signum >= signalmax)
…		…
588	static void	640	static void
589	sigcb (EV_P_ struct ev_io *iow, int revents)	641	sigcb (EV_P_ struct ev_io *iow, int revents)
590	{	642	{
591	int signum;	643	int signum;
592		644
593	#ifdef WIN32
594	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
595	#else
596	read (sigpipe [0], &revents, 1);	645	read (sigpipe [0], &revents, 1);
597	#endif
598	gotsig = 0;	646	gotsig = 0;
599		647
600	for (signum = signalmax; signum--; )	648	for (signum = signalmax; signum--; )
601	if (signals [signum].gotsig)	649	if (signals [signum].gotsig)
602	ev_feed_signal_event (EV_A_ signum + 1);	650	ev_feed_signal_event (EV_A_ signum + 1);
603	}	651	}
604		652
605	static void	653	static void
		654	fd_intern (int fd)
		655	{
		656	#ifdef _WIN32
		657	int arg = 1;
		658	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		659	#else
		660	fcntl (fd, F_SETFD, FD_CLOEXEC);
		661	fcntl (fd, F_SETFL, O_NONBLOCK);
		662	#endif
		663	}
		664
		665	static void
606	siginit (EV_P)	666	siginit (EV_P)
607	{	667	{
608	#ifndef WIN32	668	fd_intern (sigpipe [0]);
609	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	669	fd_intern (sigpipe [1]);
610	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
611
612	/* rather than sort out wether we really need nb, set it */
613	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
614	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
615	#endif
616		670
617	ev_io_set (&sigev, sigpipe [0], EV_READ);	671	ev_io_set (&sigev, sigpipe [0], EV_READ);
618	ev_io_start (EV_A_ &sigev);	672	ev_io_start (EV_A_ &sigev);
619	ev_unref (EV_A); /* child watcher should not keep loop alive */	673	ev_unref (EV_A); /* child watcher should not keep loop alive */
620	}	674	}
621		675
622	/*****************************************************************************/	676	/*****************************************************************************/
623		677
624	static struct ev_child *childs [PID_HASHSIZE];	678	static struct ev_child *childs [PID_HASHSIZE];
625		679
626	#ifndef WIN32	680	#ifndef _WIN32
627		681
628	static struct ev_signal childev;	682	static struct ev_signal childev;
629		683
630	#ifndef WCONTINUED	684	#ifndef WCONTINUED
631	# define WCONTINUED 0	685	# define WCONTINUED 0
…		…
663		717
664	#endif	718	#endif
665		719
666	/*****************************************************************************/	720	/*****************************************************************************/
667		721
		722	#if EV_USE_PORT
		723	# include "ev_port.c"
		724	#endif
668	#if EV_USE_KQUEUE	725	#if EV_USE_KQUEUE
669	# include "ev_kqueue.c"	726	# include "ev_kqueue.c"
670	#endif	727	#endif
671	#if EV_USE_EPOLL	728	#if EV_USE_EPOLL
672	# include "ev_epoll.c"	729	# include "ev_epoll.c"
…		…
692		749
693	/* return true if we are running with elevated privileges and should ignore env variables */	750	/* return true if we are running with elevated privileges and should ignore env variables */
694	static int	751	static int
695	enable_secure (void)	752	enable_secure (void)
696	{	753	{
697	#ifdef WIN32	754	#ifdef _WIN32
698	return 0;	755	return 0;
699	#else	756	#else
700	return getuid () != geteuid ()	757	return getuid () != geteuid ()
701	\|\| getgid () != getegid ();	758	\|\| getgid () != getegid ();
702	#endif	759	#endif
703	}	760	}
704		761
705	int	762	unsigned int
706	ev_method (EV_P)	763	ev_method (EV_P)
707	{	764	{
708	return method;	765	return method;
709	}	766	}
710		767
711	static void	768	static void
712	loop_init (EV_P_ int methods)	769	loop_init (EV_P_ unsigned int flags)
713	{	770	{
714	if (!method)	771	if (!method)
715	{	772	{
716	#if EV_USE_MONOTONIC	773	#if EV_USE_MONOTONIC
717	{	774	{
…		…
719	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	776	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
720	have_monotonic = 1;	777	have_monotonic = 1;
721	}	778	}
722	#endif	779	#endif
723		780
724	rt_now = ev_time ();	781	ev_rt_now = ev_time ();
725	mn_now = get_clock ();	782	mn_now = get_clock ();
726	now_floor = mn_now;	783	now_floor = mn_now;
727	rtmn_diff = rt_now - mn_now;	784	rtmn_diff = ev_rt_now - mn_now;
728		785
729	if (methods == EVMETHOD_AUTO)	786	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
730	if (!enable_secure () && getenv ("LIBEV_METHODS"))
731	methods = atoi (getenv ("LIBEV_METHODS"));	787	flags = atoi (getenv ("LIBEV_FLAGS"));
732	else	788
733	methods = EVMETHOD_ANY;	789	if (!(flags & 0x0000ffff))
		790	flags \|= 0x0000ffff;
734		791
735	method = 0;	792	method = 0;
736	#if EV_USE_WIN32	793	#if EV_USE_PORT
737	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	794	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
738	#endif	795	#endif
739	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
740	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	797	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
741	#endif	798	#endif
742	#if EV_USE_EPOLL	799	#if EV_USE_EPOLL
743	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	800	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
744	#endif	801	#endif
745	#if EV_USE_POLL	802	#if EV_USE_POLL
746	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	803	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
747	#endif	804	#endif
748	#if EV_USE_SELECT	805	#if EV_USE_SELECT
749	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	806	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
750	#endif	807	#endif
751		808
752	ev_watcher_init (&sigev, sigcb);	809	ev_init (&sigev, sigcb);
753	ev_set_priority (&sigev, EV_MAXPRI);	810	ev_set_priority (&sigev, EV_MAXPRI);
754	}	811	}
755	}	812	}
756		813
757	void	814	static void
758	loop_destroy (EV_P)	815	loop_destroy (EV_P)
759	{	816	{
760	int i;	817	int i;
761		818
762	#if EV_USE_WIN32	819	#if EV_USE_PORT
763	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	820	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
764	#endif	821	#endif
765	#if EV_USE_KQUEUE	822	#if EV_USE_KQUEUE
766	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	823	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
767	#endif	824	#endif
768	#if EV_USE_EPOLL	825	#if EV_USE_EPOLL
…		…
777		834
778	for (i = NUMPRI; i--; )	835	for (i = NUMPRI; i--; )
779	array_free (pending, [i]);	836	array_free (pending, [i]);
780		837
781	/* have to use the microsoft-never-gets-it-right macro */	838	/* have to use the microsoft-never-gets-it-right macro */
782	array_free_microshit (fdchange);	839	array_free (fdchange, EMPTY0);
783	array_free_microshit (timer);	840	array_free (timer, EMPTY0);
784	array_free_microshit (periodic);	841	#if EV_PERIODICS
785	array_free_microshit (idle);	842	array_free (periodic, EMPTY0);
786	array_free_microshit (prepare);	843	#endif
787	array_free_microshit (check);	844	array_free (idle, EMPTY0);
		845	array_free (prepare, EMPTY0);
		846	array_free (check, EMPTY0);
788		847
789	method = 0;	848	method = 0;
790	}	849	}
791		850
792	static void	851	static void
793	loop_fork (EV_P)	852	loop_fork (EV_P)
794	{	853	{
		854	#if EV_USE_PORT
		855	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		856	#endif
		857	#if EV_USE_KQUEUE
		858	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		859	#endif
795	#if EV_USE_EPOLL	860	#if EV_USE_EPOLL
796	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	861	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
797	#endif
798	#if EV_USE_KQUEUE
799	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
800	#endif	862	#endif
801		863
802	if (ev_is_active (&sigev))	864	if (ev_is_active (&sigev))
803	{	865	{
804	/* default loop */	866	/* default loop */
…		…
817	postfork = 0;	879	postfork = 0;
818	}	880	}
819		881
820	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
821	struct ev_loop *	883	struct ev_loop *
822	ev_loop_new (int methods)	884	ev_loop_new (unsigned int flags)
823	{	885	{
824	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	886	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
825		887
826	memset (loop, 0, sizeof (struct ev_loop));	888	memset (loop, 0, sizeof (struct ev_loop));
827		889
828	loop_init (EV_A_ methods);	890	loop_init (EV_A_ flags);
829		891
830	if (ev_method (EV_A))	892	if (ev_method (EV_A))
831	return loop;	893	return loop;
832		894
833	return 0;	895	return 0;
…		…
848		910
849	#endif	911	#endif
850		912
851	#if EV_MULTIPLICITY	913	#if EV_MULTIPLICITY
852	struct ev_loop *	914	struct ev_loop *
		915	ev_default_loop_init (unsigned int flags)
853	#else	916	#else
854	int	917	int
		918	ev_default_loop (unsigned int flags)
855	#endif	919	#endif
856	ev_default_loop (int methods)
857	{	920	{
858	if (sigpipe [0] == sigpipe [1])	921	if (sigpipe [0] == sigpipe [1])
859	if (pipe (sigpipe))	922	if (pipe (sigpipe))
860	return 0;	923	return 0;
861		924
862	if (!default_loop)	925	if (!ev_default_loop_ptr)
863	{	926	{
864	#if EV_MULTIPLICITY	927	#if EV_MULTIPLICITY
865	struct ev_loop *loop = default_loop = &default_loop_struct;	928	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
866	#else	929	#else
867	default_loop = 1;	930	ev_default_loop_ptr = 1;
868	#endif	931	#endif
869		932
870	loop_init (EV_A_ methods);	933	loop_init (EV_A_ flags);
871		934
872	if (ev_method (EV_A))	935	if (ev_method (EV_A))
873	{	936	{
874	siginit (EV_A);	937	siginit (EV_A);
875		938
876	#ifndef WIN32	939	#ifndef _WIN32
877	ev_signal_init (&childev, childcb, SIGCHLD);	940	ev_signal_init (&childev, childcb, SIGCHLD);
878	ev_set_priority (&childev, EV_MAXPRI);	941	ev_set_priority (&childev, EV_MAXPRI);
879	ev_signal_start (EV_A_ &childev);	942	ev_signal_start (EV_A_ &childev);
880	ev_unref (EV_A); /* child watcher should not keep loop alive */	943	ev_unref (EV_A); /* child watcher should not keep loop alive */
881	#endif	944	#endif
882	}	945	}
883	else	946	else
884	default_loop = 0;	947	ev_default_loop_ptr = 0;
885	}	948	}
886		949
887	return default_loop;	950	return ev_default_loop_ptr;
888	}	951	}
889		952
890	void	953	void
891	ev_default_destroy (void)	954	ev_default_destroy (void)
892	{	955	{
893	#if EV_MULTIPLICITY	956	#if EV_MULTIPLICITY
894	struct ev_loop *loop = default_loop;	957	struct ev_loop *loop = ev_default_loop_ptr;
895	#endif	958	#endif
896		959
897	#ifndef WIN32	960	#ifndef _WIN32
898	ev_ref (EV_A); /* child watcher */	961	ev_ref (EV_A); /* child watcher */
899	ev_signal_stop (EV_A_ &childev);	962	ev_signal_stop (EV_A_ &childev);
900	#endif	963	#endif
901		964
902	ev_ref (EV_A); /* signal watcher */	965	ev_ref (EV_A); /* signal watcher */
…		…
910		973
911	void	974	void
912	ev_default_fork (void)	975	ev_default_fork (void)
913	{	976	{
914	#if EV_MULTIPLICITY	977	#if EV_MULTIPLICITY
915	struct ev_loop *loop = default_loop;	978	struct ev_loop *loop = ev_default_loop_ptr;
916	#endif	979	#endif
917		980
918	if (method)	981	if (method)
919	postfork = 1;	982	postfork = 1;
920	}	983	}
…		…
931	return 1;	994	return 1;
932		995
933	return 0;	996	return 0;
934	}	997	}
935		998
936	static void	999	inline void
937	call_pending (EV_P)	1000	call_pending (EV_P)
938	{	1001	{
939	int pri;	1002	int pri;
940		1003
941	for (pri = NUMPRI; pri--; )	1004	for (pri = NUMPRI; pri--; )
942	while (pendingcnt [pri])	1005	while (pendingcnt [pri])
943	{	1006	{
944	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1007	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
945		1008
946	if (p->w)	1009	if (expect_true (p->w))
947	{	1010	{
948	p->w->pending = 0;	1011	p->w->pending = 0;
949	p->w->cb (EV_A_ p->w, p->events);	1012	EV_CB_INVOKE (p->w, p->events);
950	}	1013	}
951	}	1014	}
952	}	1015	}
953		1016
954	static void	1017	inline void
955	timers_reify (EV_P)	1018	timers_reify (EV_P)
956	{	1019	{
957	while (timercnt && ((WT)timers [0])->at <= mn_now)	1020	while (timercnt && ((WT)timers [0])->at <= mn_now)
958	{	1021	{
959	struct ev_timer *w = timers [0];	1022	struct ev_timer *w = timers [0];
…		…
962		1025
963	/* first reschedule or stop timer */	1026	/* first reschedule or stop timer */
964	if (w->repeat)	1027	if (w->repeat)
965	{	1028	{
966	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1029	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1030
967	((WT)w)->at = mn_now + w->repeat;	1031	((WT)w)->at += w->repeat;
		1032	if (((WT)w)->at < mn_now)
		1033	((WT)w)->at = mn_now;
		1034
968	downheap ((WT *)timers, timercnt, 0);	1035	downheap ((WT *)timers, timercnt, 0);
969	}	1036	}
970	else	1037	else
971	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1038	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
972		1039
973	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1040	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
974	}	1041	}
975	}	1042	}
976		1043
977	static void	1044	#if EV_PERIODICS
		1045	inline void
978	periodics_reify (EV_P)	1046	periodics_reify (EV_P)
979	{	1047	{
980	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1048	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
981	{	1049	{
982	struct ev_periodic *w = periodics [0];	1050	struct ev_periodic *w = periodics [0];
983		1051
984	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1052	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
985		1053
986	/* first reschedule or stop timer */	1054	/* first reschedule or stop timer */
987	if (w->reschedule_cb)	1055	if (w->reschedule_cb)
988	{	1056	{
989	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1057	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
990
991	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1058	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
992	downheap ((WT *)periodics, periodiccnt, 0);	1059	downheap ((WT *)periodics, periodiccnt, 0);
993	}	1060	}
994	else if (w->interval)	1061	else if (w->interval)
995	{	1062	{
996	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1063	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
997	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1064	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
998	downheap ((WT *)periodics, periodiccnt, 0);	1065	downheap ((WT *)periodics, periodiccnt, 0);
999	}	1066	}
1000	else	1067	else
1001	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1068	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1002		1069
…		…
1013	for (i = 0; i < periodiccnt; ++i)	1080	for (i = 0; i < periodiccnt; ++i)
1014	{	1081	{
1015	struct ev_periodic *w = periodics [i];	1082	struct ev_periodic *w = periodics [i];
1016		1083
1017	if (w->reschedule_cb)	1084	if (w->reschedule_cb)
1018	((WT)w)->at = w->reschedule_cb (w, rt_now);	1085	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1019	else if (w->interval)	1086	else if (w->interval)
1020	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1087	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1021	}	1088	}
1022		1089
1023	/* now rebuild the heap */	1090	/* now rebuild the heap */
1024	for (i = periodiccnt >> 1; i--; )	1091	for (i = periodiccnt >> 1; i--; )
1025	downheap ((WT *)periodics, periodiccnt, i);	1092	downheap ((WT *)periodics, periodiccnt, i);
1026	}	1093	}
		1094	#endif
1027		1095
1028	inline int	1096	inline int
1029	time_update_monotonic (EV_P)	1097	time_update_monotonic (EV_P)
1030	{	1098	{
1031	mn_now = get_clock ();	1099	mn_now = get_clock ();
1032		1100
1033	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1101	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1034	{	1102	{
1035	rt_now = rtmn_diff + mn_now;	1103	ev_rt_now = rtmn_diff + mn_now;
1036	return 0;	1104	return 0;
1037	}	1105	}
1038	else	1106	else
1039	{	1107	{
1040	now_floor = mn_now;	1108	now_floor = mn_now;
1041	rt_now = ev_time ();	1109	ev_rt_now = ev_time ();
1042	return 1;	1110	return 1;
1043	}	1111	}
1044	}	1112	}
1045		1113
1046	static void	1114	inline void
1047	time_update (EV_P)	1115	time_update (EV_P)
1048	{	1116	{
1049	int i;	1117	int i;
1050		1118
1051	#if EV_USE_MONOTONIC	1119	#if EV_USE_MONOTONIC
…		…
1055	{	1123	{
1056	ev_tstamp odiff = rtmn_diff;	1124	ev_tstamp odiff = rtmn_diff;
1057		1125
1058	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1126	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1059	{	1127	{
1060	rtmn_diff = rt_now - mn_now;	1128	rtmn_diff = ev_rt_now - mn_now;
1061		1129
1062	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1130	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1063	return; /* all is well */	1131	return; /* all is well */
1064		1132
1065	rt_now = ev_time ();	1133	ev_rt_now = ev_time ();
1066	mn_now = get_clock ();	1134	mn_now = get_clock ();
1067	now_floor = mn_now;	1135	now_floor = mn_now;
1068	}	1136	}
1069		1137
		1138	# if EV_PERIODICS
1070	periodics_reschedule (EV_A);	1139	periodics_reschedule (EV_A);
		1140	# endif
1071	/* no timer adjustment, as the monotonic clock doesn't jump */	1141	/* no timer adjustment, as the monotonic clock doesn't jump */
1072	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1142	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1073	}	1143	}
1074	}	1144	}
1075	else	1145	else
1076	#endif	1146	#endif
1077	{	1147	{
1078	rt_now = ev_time ();	1148	ev_rt_now = ev_time ();
1079		1149
1080	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1150	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1081	{	1151	{
		1152	#if EV_PERIODICS
1082	periodics_reschedule (EV_A);	1153	periodics_reschedule (EV_A);
		1154	#endif
1083		1155
1084	/* adjust timers. this is easy, as the offset is the same for all */	1156	/* adjust timers. this is easy, as the offset is the same for all */
1085	for (i = 0; i < timercnt; ++i)	1157	for (i = 0; i < timercnt; ++i)
1086	((WT)timers [i])->at += rt_now - mn_now;	1158	((WT)timers [i])->at += ev_rt_now - mn_now;
1087	}	1159	}
1088		1160
1089	mn_now = rt_now;	1161	mn_now = ev_rt_now;
1090	}	1162	}
1091	}	1163	}
1092		1164
1093	void	1165	void
1094	ev_ref (EV_P)	1166	ev_ref (EV_P)
…		…
1108	ev_loop (EV_P_ int flags)	1180	ev_loop (EV_P_ int flags)
1109	{	1181	{
1110	double block;	1182	double block;
1111	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1183	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1112		1184
1113	do	1185	while (activecnt)
1114	{	1186	{
1115	/* queue check watchers (and execute them) */	1187	/* queue check watchers (and execute them) */
1116	if (expect_false (preparecnt))	1188	if (expect_false (preparecnt))
1117	{	1189	{
1118	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1190	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1134	if (expect_true (have_monotonic))	1206	if (expect_true (have_monotonic))
1135	time_update_monotonic (EV_A);	1207	time_update_monotonic (EV_A);
1136	else	1208	else
1137	#endif	1209	#endif
1138	{	1210	{
1139	rt_now = ev_time ();	1211	ev_rt_now = ev_time ();
1140	mn_now = rt_now;	1212	mn_now = ev_rt_now;
1141	}	1213	}
1142		1214
1143	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1215	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1144	block = 0.;	1216	block = 0.;
1145	else	1217	else
…		…
1150	{	1222	{
1151	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1223	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1152	if (block > to) block = to;	1224	if (block > to) block = to;
1153	}	1225	}
1154		1226
		1227	#if EV_PERIODICS
1155	if (periodiccnt)	1228	if (periodiccnt)
1156	{	1229	{
1157	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1230	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1158	if (block > to) block = to;	1231	if (block > to) block = to;
1159	}	1232	}
		1233	#endif
1160		1234
1161	if (block < 0.) block = 0.;	1235	if (expect_false (block < 0.)) block = 0.;
1162	}	1236	}
1163		1237
1164	method_poll (EV_A_ block);	1238	method_poll (EV_A_ block);
1165		1239
1166	/* update rt_now, do magic */	1240	/* update ev_rt_now, do magic */
1167	time_update (EV_A);	1241	time_update (EV_A);
1168		1242
1169	/* queue pending timers and reschedule them */	1243	/* queue pending timers and reschedule them */
1170	timers_reify (EV_A); /* relative timers called last */	1244	timers_reify (EV_A); /* relative timers called last */
		1245	#if EV_PERIODICS
1171	periodics_reify (EV_A); /* absolute timers called first */	1246	periodics_reify (EV_A); /* absolute timers called first */
		1247	#endif
1172		1248
1173	/* queue idle watchers unless io or timers are pending */	1249	/* queue idle watchers unless io or timers are pending */
1174	if (idlecnt && !any_pending (EV_A))	1250	if (idlecnt && !any_pending (EV_A))
1175	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1251	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1176		1252
1177	/* queue check watchers, to be executed first */	1253	/* queue check watchers, to be executed first */
1178	if (checkcnt)	1254	if (expect_false (checkcnt))
1179	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1255	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1180		1256
1181	call_pending (EV_A);	1257	call_pending (EV_A);
		1258
		1259	if (expect_false (loop_done))
		1260	break;
1182	}	1261	}
1183	while (activecnt && !loop_done);
1184		1262
1185	if (loop_done != 2)	1263	if (loop_done != 2)
1186	loop_done = 0;	1264	loop_done = 0;
1187	}	1265	}
1188		1266
…		…
1248	void	1326	void
1249	ev_io_start (EV_P_ struct ev_io *w)	1327	ev_io_start (EV_P_ struct ev_io *w)
1250	{	1328	{
1251	int fd = w->fd;	1329	int fd = w->fd;
1252		1330
1253	if (ev_is_active (w))	1331	if (expect_false (ev_is_active (w)))
1254	return;	1332	return;
1255		1333
1256	assert (("ev_io_start called with negative fd", fd >= 0));	1334	assert (("ev_io_start called with negative fd", fd >= 0));
1257		1335
1258	ev_start (EV_A_ (W)w, 1);	1336	ev_start (EV_A_ (W)w, 1);
…		…
1264		1342
1265	void	1343	void
1266	ev_io_stop (EV_P_ struct ev_io *w)	1344	ev_io_stop (EV_P_ struct ev_io *w)
1267	{	1345	{
1268	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1269	if (!ev_is_active (w))	1347	if (expect_false (!ev_is_active (w)))
1270	return;	1348	return;
		1349
		1350	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1271		1351
1272	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1352	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1273	ev_stop (EV_A_ (W)w);	1353	ev_stop (EV_A_ (W)w);
1274		1354
1275	fd_change (EV_A_ w->fd);	1355	fd_change (EV_A_ w->fd);
1276	}	1356	}
1277		1357
1278	void	1358	void
1279	ev_timer_start (EV_P_ struct ev_timer *w)	1359	ev_timer_start (EV_P_ struct ev_timer *w)
1280	{	1360	{
1281	if (ev_is_active (w))	1361	if (expect_false (ev_is_active (w)))
1282	return;	1362	return;
1283		1363
1284	((WT)w)->at += mn_now;	1364	((WT)w)->at += mn_now;
1285		1365
1286	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1366	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1287		1367
1288	ev_start (EV_A_ (W)w, ++timercnt);	1368	ev_start (EV_A_ (W)w, ++timercnt);
1289	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1369	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1290	timers [timercnt - 1] = w;	1370	timers [timercnt - 1] = w;
1291	upheap ((WT *)timers, timercnt - 1);	1371	upheap ((WT *)timers, timercnt - 1);
1292		1372
1293	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1373	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1294	}	1374	}
1295		1375
1296	void	1376	void
1297	ev_timer_stop (EV_P_ struct ev_timer *w)	1377	ev_timer_stop (EV_P_ struct ev_timer *w)
1298	{	1378	{
1299	ev_clear_pending (EV_A_ (W)w);	1379	ev_clear_pending (EV_A_ (W)w);
1300	if (!ev_is_active (w))	1380	if (expect_false (!ev_is_active (w)))
1301	return;	1381	return;
1302		1382
1303	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1383	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1304		1384
1305	if (((W)w)->active < timercnt--)	1385	if (expect_true (((W)w)->active < timercnt--))
1306	{	1386	{
1307	timers [((W)w)->active - 1] = timers [timercnt];	1387	timers [((W)w)->active - 1] = timers [timercnt];
1308	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1388	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1309	}	1389	}
1310		1390
1311	((WT)w)->at = w->repeat;	1391	((WT)w)->at -= mn_now;
1312		1392
1313	ev_stop (EV_A_ (W)w);	1393	ev_stop (EV_A_ (W)w);
1314	}	1394	}
1315		1395
1316	void	1396	void
…		…
1319	if (ev_is_active (w))	1399	if (ev_is_active (w))
1320	{	1400	{
1321	if (w->repeat)	1401	if (w->repeat)
1322	{	1402	{
1323	((WT)w)->at = mn_now + w->repeat;	1403	((WT)w)->at = mn_now + w->repeat;
1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1404	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1325	}	1405	}
1326	else	1406	else
1327	ev_timer_stop (EV_A_ w);	1407	ev_timer_stop (EV_A_ w);
1328	}	1408	}
1329	else if (w->repeat)	1409	else if (w->repeat)
		1410	{
		1411	w->at = w->repeat;
1330	ev_timer_start (EV_A_ w);	1412	ev_timer_start (EV_A_ w);
		1413	}
1331	}	1414	}
1332		1415
		1416	#if EV_PERIODICS
1333	void	1417	void
1334	ev_periodic_start (EV_P_ struct ev_periodic *w)	1418	ev_periodic_start (EV_P_ struct ev_periodic *w)
1335	{	1419	{
1336	if (ev_is_active (w))	1420	if (expect_false (ev_is_active (w)))
1337	return;	1421	return;
1338		1422
1339	if (w->reschedule_cb)	1423	if (w->reschedule_cb)
1340	((WT)w)->at = w->reschedule_cb (w, rt_now);	1424	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1341	else if (w->interval)	1425	else if (w->interval)
1342	{	1426	{
1343	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1427	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1344	/* this formula differs from the one in periodic_reify because we do not always round up */	1428	/* this formula differs from the one in periodic_reify because we do not always round up */
1345	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1429	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1346	}	1430	}
1347		1431
1348	ev_start (EV_A_ (W)w, ++periodiccnt);	1432	ev_start (EV_A_ (W)w, ++periodiccnt);
1349	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1433	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1350	periodics [periodiccnt - 1] = w;	1434	periodics [periodiccnt - 1] = w;
1351	upheap ((WT *)periodics, periodiccnt - 1);	1435	upheap ((WT *)periodics, periodiccnt - 1);
1352		1436
1353	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1437	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1354	}	1438	}
1355		1439
1356	void	1440	void
1357	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1441	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1358	{	1442	{
1359	ev_clear_pending (EV_A_ (W)w);	1443	ev_clear_pending (EV_A_ (W)w);
1360	if (!ev_is_active (w))	1444	if (expect_false (!ev_is_active (w)))
1361	return;	1445	return;
1362		1446
1363	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1447	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1364		1448
1365	if (((W)w)->active < periodiccnt--)	1449	if (expect_true (((W)w)->active < periodiccnt--))
1366	{	1450	{
1367	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1451	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1368	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1452	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1369	}	1453	}
1370		1454
1371	ev_stop (EV_A_ (W)w);	1455	ev_stop (EV_A_ (W)w);
1372	}	1456	}
1373		1457
1374	void	1458	void
1375	ev_periodic_again (EV_P_ struct ev_periodic *w)	1459	ev_periodic_again (EV_P_ struct ev_periodic *w)
1376	{	1460	{
		1461	/* TODO: use adjustheap and recalculation */
1377	ev_periodic_stop (EV_A_ w);	1462	ev_periodic_stop (EV_A_ w);
1378	ev_periodic_start (EV_A_ w);	1463	ev_periodic_start (EV_A_ w);
1379	}	1464	}
		1465	#endif
1380		1466
1381	void	1467	void
1382	ev_idle_start (EV_P_ struct ev_idle *w)	1468	ev_idle_start (EV_P_ struct ev_idle *w)
1383	{	1469	{
1384	if (ev_is_active (w))	1470	if (expect_false (ev_is_active (w)))
1385	return;	1471	return;
1386		1472
1387	ev_start (EV_A_ (W)w, ++idlecnt);	1473	ev_start (EV_A_ (W)w, ++idlecnt);
1388	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1474	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1389	idles [idlecnt - 1] = w;	1475	idles [idlecnt - 1] = w;
1390	}	1476	}
1391		1477
1392	void	1478	void
1393	ev_idle_stop (EV_P_ struct ev_idle *w)	1479	ev_idle_stop (EV_P_ struct ev_idle *w)
1394	{	1480	{
1395	ev_clear_pending (EV_A_ (W)w);	1481	ev_clear_pending (EV_A_ (W)w);
1396	if (ev_is_active (w))	1482	if (expect_false (!ev_is_active (w)))
1397	return;	1483	return;
1398		1484
1399	idles [((W)w)->active - 1] = idles [--idlecnt];	1485	idles [((W)w)->active - 1] = idles [--idlecnt];
1400	ev_stop (EV_A_ (W)w);	1486	ev_stop (EV_A_ (W)w);
1401	}	1487	}
1402		1488
1403	void	1489	void
1404	ev_prepare_start (EV_P_ struct ev_prepare *w)	1490	ev_prepare_start (EV_P_ struct ev_prepare *w)
1405	{	1491	{
1406	if (ev_is_active (w))	1492	if (expect_false (ev_is_active (w)))
1407	return;	1493	return;
1408		1494
1409	ev_start (EV_A_ (W)w, ++preparecnt);	1495	ev_start (EV_A_ (W)w, ++preparecnt);
1410	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1496	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1411	prepares [preparecnt - 1] = w;	1497	prepares [preparecnt - 1] = w;
1412	}	1498	}
1413		1499
1414	void	1500	void
1415	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1501	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1416	{	1502	{
1417	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1418	if (ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1419	return;	1505	return;
1420		1506
1421	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1507	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1422	ev_stop (EV_A_ (W)w);	1508	ev_stop (EV_A_ (W)w);
1423	}	1509	}
1424		1510
1425	void	1511	void
1426	ev_check_start (EV_P_ struct ev_check *w)	1512	ev_check_start (EV_P_ struct ev_check *w)
1427	{	1513	{
1428	if (ev_is_active (w))	1514	if (expect_false (ev_is_active (w)))
1429	return;	1515	return;
1430		1516
1431	ev_start (EV_A_ (W)w, ++checkcnt);	1517	ev_start (EV_A_ (W)w, ++checkcnt);
1432	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1518	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1433	checks [checkcnt - 1] = w;	1519	checks [checkcnt - 1] = w;
1434	}	1520	}
1435		1521
1436	void	1522	void
1437	ev_check_stop (EV_P_ struct ev_check *w)	1523	ev_check_stop (EV_P_ struct ev_check *w)
1438	{	1524	{
1439	ev_clear_pending (EV_A_ (W)w);	1525	ev_clear_pending (EV_A_ (W)w);
1440	if (ev_is_active (w))	1526	if (expect_false (!ev_is_active (w)))
1441	return;	1527	return;
1442		1528
1443	checks [((W)w)->active - 1] = checks [--checkcnt];	1529	checks [((W)w)->active - 1] = checks [--checkcnt];
1444	ev_stop (EV_A_ (W)w);	1530	ev_stop (EV_A_ (W)w);
1445	}	1531	}
…		…
1450		1536
1451	void	1537	void
1452	ev_signal_start (EV_P_ struct ev_signal *w)	1538	ev_signal_start (EV_P_ struct ev_signal *w)
1453	{	1539	{
1454	#if EV_MULTIPLICITY	1540	#if EV_MULTIPLICITY
1455	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1541	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1456	#endif	1542	#endif
1457	if (ev_is_active (w))	1543	if (expect_false (ev_is_active (w)))
1458	return;	1544	return;
1459		1545
1460	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1546	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1461		1547
1462	ev_start (EV_A_ (W)w, 1);	1548	ev_start (EV_A_ (W)w, 1);
1463	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1549	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1464	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1550	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1465		1551
1466	if (!((WL)w)->next)	1552	if (!((WL)w)->next)
1467	{	1553	{
1468	#if WIN32	1554	#if _WIN32
1469	signal (w->signum, sighandler);	1555	signal (w->signum, sighandler);
1470	#else	1556	#else
1471	struct sigaction sa;	1557	struct sigaction sa;
1472	sa.sa_handler = sighandler;	1558	sa.sa_handler = sighandler;
1473	sigfillset (&sa.sa_mask);	1559	sigfillset (&sa.sa_mask);
…		…
1479		1565
1480	void	1566	void
1481	ev_signal_stop (EV_P_ struct ev_signal *w)	1567	ev_signal_stop (EV_P_ struct ev_signal *w)
1482	{	1568	{
1483	ev_clear_pending (EV_A_ (W)w);	1569	ev_clear_pending (EV_A_ (W)w);
1484	if (!ev_is_active (w))	1570	if (expect_false (!ev_is_active (w)))
1485	return;	1571	return;
1486		1572
1487	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1573	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1488	ev_stop (EV_A_ (W)w);	1574	ev_stop (EV_A_ (W)w);
1489		1575
…		…
1493		1579
1494	void	1580	void
1495	ev_child_start (EV_P_ struct ev_child *w)	1581	ev_child_start (EV_P_ struct ev_child *w)
1496	{	1582	{
1497	#if EV_MULTIPLICITY	1583	#if EV_MULTIPLICITY
1498	assert (("child watchers are only supported in the default loop", loop == default_loop));	1584	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1499	#endif	1585	#endif
1500	if (ev_is_active (w))	1586	if (expect_false (ev_is_active (w)))
1501	return;	1587	return;
1502		1588
1503	ev_start (EV_A_ (W)w, 1);	1589	ev_start (EV_A_ (W)w, 1);
1504	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1590	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1505	}	1591	}
1506		1592
1507	void	1593	void
1508	ev_child_stop (EV_P_ struct ev_child *w)	1594	ev_child_stop (EV_P_ struct ev_child *w)
1509	{	1595	{
1510	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1511	if (ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1512	return;	1598	return;
1513		1599
1514	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1600	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1515	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1516	}	1602	}
…		…
1553	void	1639	void
1554	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1640	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1555	{	1641	{
1556	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1642	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1557		1643
1558	if (!once)	1644	if (expect_false (!once))
		1645	{
1559	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1560	else	1647	return;
1561	{	1648	}
		1649
1562	once->cb = cb;	1650	once->cb = cb;
1563	once->arg = arg;	1651	once->arg = arg;
1564		1652
1565	ev_watcher_init (&once->io, once_cb_io);	1653	ev_init (&once->io, once_cb_io);
1566	if (fd >= 0)	1654	if (fd >= 0)
1567	{	1655	{
1568	ev_io_set (&once->io, fd, events);	1656	ev_io_set (&once->io, fd, events);
1569	ev_io_start (EV_A_ &once->io);	1657	ev_io_start (EV_A_ &once->io);
1570	}	1658	}
1571		1659
1572	ev_watcher_init (&once->to, once_cb_to);	1660	ev_init (&once->to, once_cb_to);
1573	if (timeout >= 0.)	1661	if (timeout >= 0.)
1574	{	1662	{
1575	ev_timer_set (&once->to, timeout, 0.);	1663	ev_timer_set (&once->to, timeout, 0.);
1576	ev_timer_start (EV_A_ &once->to);	1664	ev_timer_start (EV_A_ &once->to);
1577	}
1578	}	1665	}
1579	}	1666	}
1580		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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Comparing libev/ev.c (file contents): Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC vs. Revision 1.125 by root, Sat Nov 17 02:28:43 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC vs.
Revision 1.125 by root, Sat Nov 17 02:28:43 2007 UTC