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

Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 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
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	55	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	56	# define EV_USE_SELECT 1
		57	# else
		58	# define EV_USE_SELECT 0
41	# endif	59	# endif
42		60
43	# if HAVE_POLL && HAVE_POLL_H	61	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	62	# define EV_USE_POLL 1
		63	# else
		64	# define EV_USE_POLL 0
45	# endif	65	# endif
46		66
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	67	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	68	# define EV_USE_EPOLL 1
		69	# else
		70	# define EV_USE_EPOLL 0
49	# endif	71	# endif
50		72
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	73	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	74	# define EV_USE_KQUEUE 1
		75	# else
		76	# define EV_USE_KQUEUE 0
		77	# endif
		78
		79	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		80	# define EV_USE_PORT 1
		81	# else
		82	# define EV_USE_PORT 0
53	# endif	83	# endif
54		84
55	#endif	85	#endif
56		86
57	#include <math.h>	87	#include <math.h>
…		…
66	#include <sys/types.h>	96	#include <sys/types.h>
67	#include <time.h>	97	#include <time.h>
68		98
69	#include <signal.h>	99	#include <signal.h>
70		100
71	#ifndef WIN32	101	#ifndef _WIN32
72	# include <unistd.h>	102	# include <unistd.h>
73	# include <sys/time.h>	103	# include <sys/time.h>
74	# include <sys/wait.h>	104	# include <sys/wait.h>
		105	#else
		106	# define WIN32_LEAN_AND_MEAN
		107	# include <windows.h>
		108	# ifndef EV_SELECT_IS_WINSOCKET
		109	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	110	# endif
		111	#endif
		112
76	/**/	113	/**/
77		114
78	#ifndef EV_USE_MONOTONIC	115	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
		119	#ifndef EV_USE_REALTIME
		120	# define EV_USE_REALTIME 0
80	#endif	121	#endif
81		122
82	#ifndef EV_USE_SELECT	123	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	124	# define EV_USE_SELECT 1
84	#endif	125	#endif
85		126
86	#ifndef EV_USE_POLL	127	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	128	# ifdef _WIN32
		129	# define EV_USE_POLL 0
		130	# else
		131	# define EV_USE_POLL 1
		132	# endif
88	#endif	133	#endif
89		134
90	#ifndef EV_USE_EPOLL	135	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	136	# define EV_USE_EPOLL 0
92	#endif	137	#endif
93		138
94	#ifndef EV_USE_KQUEUE	139	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	140	# define EV_USE_KQUEUE 0
96	#endif	141	#endif
97		142
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	143	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	144	# define EV_USE_PORT 0
110	#endif	145	#endif
111		146
112	/**/	147	/**/
		148
		149	/* darwin simply cannot be helped */
		150	#ifdef __APPLE__
		151	# undef EV_USE_POLL
		152	# undef EV_USE_KQUEUE
		153	#endif
113		154
114	#ifndef CLOCK_MONOTONIC	155	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	156	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	157	# define EV_USE_MONOTONIC 0
117	#endif	158	#endif
…		…
119	#ifndef CLOCK_REALTIME	160	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	161	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	162	# define EV_USE_REALTIME 0
122	#endif	163	#endif
123		164
		165	#if EV_SELECT_IS_WINSOCKET
		166	# include <winsock.h>
		167	#endif
		168
124	/**/	169	/**/
125		170
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	171	#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) */	172	#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 */	173	#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 */	174	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		175
131	#ifdef EV_H	176	#ifdef EV_H
132	# include EV_H	177	# include EV_H
133	#else	178	#else
134	# include "ev.h"	179	# include "ev.h"
135	#endif	180	#endif
136		181
137	#if __GNUC__ >= 3	182	#if __GNUC__ >= 3
138	# define expect(expr,value) __builtin_expect ((expr),(value))	183	# define expect(expr,value) __builtin_expect ((expr),(value))
139	# define inline inline	184	# define inline static inline
140	#else	185	#else
141	# define expect(expr,value) (expr)	186	# define expect(expr,value) (expr)
142	# define inline static	187	# define inline static
143	#endif	188	#endif
144		189
…		…
146	#define expect_true(expr) expect ((expr) != 0, 1)	191	#define expect_true(expr) expect ((expr) != 0, 1)
147		192
148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	193	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	194	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
150		195
		196	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		197	#define EMPTY2(a,b) /* used to suppress some warnings */
		198
151	typedef struct ev_watcher *W;	199	typedef struct ev_watcher *W;
152	typedef struct ev_watcher_list *WL;	200	typedef struct ev_watcher_list *WL;
153	typedef struct ev_watcher_time *WT;	201	typedef struct ev_watcher_time *WT;
154		202
155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	203	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156		204
		205	#ifdef _WIN32
157	#include "ev_win32.c"	206	# include "ev_win32.c"
		207	#endif
158		208
159	/*****************************************************************************/	209	/*****************************************************************************/
160		210
161	static void (syserr_cb)(const char msg);	211	static void (syserr_cb)(const char msg);
162		212
…		…
209	typedef struct	259	typedef struct
210	{	260	{
211	WL head;	261	WL head;
212	unsigned char events;	262	unsigned char events;
213	unsigned char reify;	263	unsigned char reify;
		264	#if EV_SELECT_IS_WINSOCKET
		265	SOCKET handle;
		266	#endif
214	} ANFD;	267	} ANFD;
215		268
216	typedef struct	269	typedef struct
217	{	270	{
218	W w;	271	W w;
…		…
221		274
222	#if EV_MULTIPLICITY	275	#if EV_MULTIPLICITY
223		276
224	struct ev_loop	277	struct ev_loop
225	{	278	{
		279	ev_tstamp ev_rt_now;
		280	#define ev_rt_now ((loop)->ev_rt_now)
226	#define VAR(name,decl) decl;	281	#define VAR(name,decl) decl;
227	#include "ev_vars.h"	282	#include "ev_vars.h"
228	#undef VAR	283	#undef VAR
229	};	284	};
230	#include "ev_wrap.h"	285	#include "ev_wrap.h"
231		286
232	struct ev_loop default_loop_struct;	287	static struct ev_loop default_loop_struct;
233	static struct ev_loop *default_loop;	288	struct ev_loop *ev_default_loop_ptr;
234		289
235	#else	290	#else
236		291
		292	ev_tstamp ev_rt_now;
237	#define VAR(name,decl) static decl;	293	#define VAR(name,decl) static decl;
238	#include "ev_vars.h"	294	#include "ev_vars.h"
239	#undef VAR	295	#undef VAR
240		296
241	static int default_loop;	297	static int ev_default_loop_ptr;
242		298
243	#endif	299	#endif
244		300
245	/*****************************************************************************/	301	/*****************************************************************************/
246		302
247	inline ev_tstamp	303	ev_tstamp
248	ev_time (void)	304	ev_time (void)
249	{	305	{
250	#if EV_USE_REALTIME	306	#if EV_USE_REALTIME
251	struct timespec ts;	307	struct timespec ts;
252	clock_gettime (CLOCK_REALTIME, &ts);	308	clock_gettime (CLOCK_REALTIME, &ts);
…		…
279	{	335	{
280	return ev_rt_now;	336	return ev_rt_now;
281	}	337	}
282	#endif	338	#endif
283		339
284	#define array_roundsize(type,n) ((n) \| 4 & ~3)	340	#define array_roundsize(type,n) (((n) \| 4) & ~3)
285		341
286	#define array_needsize(type,base,cur,cnt,init) \	342	#define array_needsize(type,base,cur,cnt,init) \
287	if (expect_false ((cnt) > cur)) \	343	if (expect_false ((cnt) > cur)) \
288	{ \	344	{ \
289	int newcnt = cur; \	345	int newcnt = cur; \
…		…
304	stem ## max = array_roundsize (stem ## cnt >> 1); \	360	stem ## max = array_roundsize (stem ## cnt >> 1); \
305	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	361	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
306	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	362	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
307	}	363	}
308		364
309	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
310	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
311	#define array_free_microshit(stem) \
312	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
313
314	#define array_free(stem, idx) \	365	#define array_free(stem, idx) \
315	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	366	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
316		367
317	/*****************************************************************************/	368	/*****************************************************************************/
318		369
…		…
332	void	383	void
333	ev_feed_event (EV_P_ void *w, int revents)	384	ev_feed_event (EV_P_ void *w, int revents)
334	{	385	{
335	W w_ = (W)w;	386	W w_ = (W)w;
336		387
337	if (w_->pending)	388	if (expect_false (w_->pending))
338	{	389	{
339	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	390	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
340	return;	391	return;
341	}	392	}
342		393
343	w_->pending = ++pendingcnt [ABSPRI (w_)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
344	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	395	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
345	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
346	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
347	}	398	}
348		399
349	static void	400	static void
…		…
376	fd_event (EV_A_ fd, revents);	427	fd_event (EV_A_ fd, revents);
377	}	428	}
378		429
379	/*****************************************************************************/	430	/*****************************************************************************/
380		431
381	static void	432	inline void
382	fd_reify (EV_P)	433	fd_reify (EV_P)
383	{	434	{
384	int i;	435	int i;
385		436
386	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
392	int events = 0;	443	int events = 0;
393		444
394	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	445	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
395	events \|= w->events;	446	events \|= w->events;
396		447
		448	#if EV_SELECT_IS_WINSOCKET
		449	if (events)
		450	{
		451	unsigned long argp;
		452	anfd->handle = _get_osfhandle (fd);
		453	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		454	}
		455	#endif
		456
397	anfd->reify = 0;	457	anfd->reify = 0;
398		458
399	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
400	anfd->events = events;	460	anfd->events = events;
401	}	461	}
…		…
404	}	464	}
405		465
406	static void	466	static void
407	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
408	{	468	{
409	if (anfds [fd].reify)	469	if (expect_false (anfds [fd].reify))
410	return;	470	return;
411		471
412	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
413		473
414	++fdchangecnt;	474	++fdchangecnt;
415	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
416	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
417	}	477	}
418		478
419	static void	479	static void
420	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
426	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
427	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	487	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
428	}	488	}
429	}	489	}
430		490
431	static int	491	inline int
432	fd_valid (int fd)	492	fd_valid (int fd)
433	{	493	{
434	#ifdef WIN32	494	#ifdef _WIN32
435	return !!win32_get_osfhandle (fd);	495	return _get_osfhandle (fd) != -1;
436	#else	496	#else
437	return fcntl (fd, F_GETFD) != -1;	497	return fcntl (fd, F_GETFD) != -1;
438	#endif	498	#endif
439	}	499	}
440		500
…		…
521	heap [k] = w;	581	heap [k] = w;
522	((W)heap [k])->active = k + 1;	582	((W)heap [k])->active = k + 1;
523	}	583	}
524		584
525	inline void	585	inline void
526	adjustheap (WT *heap, int N, int k, ev_tstamp at)	586	adjustheap (WT *heap, int N, int k)
527	{	587	{
528	ev_tstamp old_at = heap [k]->at;	588	upheap (heap, k);
529	heap [k]->at = at;
530
531	if (old_at < at)
532	downheap (heap, N, k);	589	downheap (heap, N, k);
533	else
534	upheap (heap, k);
535	}	590	}
536		591
537	/*****************************************************************************/	592	/*****************************************************************************/
538		593
539	typedef struct	594	typedef struct
…		…
562	}	617	}
563		618
564	static void	619	static void
565	sighandler (int signum)	620	sighandler (int signum)
566	{	621	{
567	#if WIN32	622	#if _WIN32
568	signal (signum, sighandler);	623	signal (signum, sighandler);
569	#endif	624	#endif
570		625
571	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
572		627
573	if (!gotsig)	628	if (!gotsig)
574	{	629	{
575	int old_errno = errno;	630	int old_errno = errno;
576	gotsig = 1;	631	gotsig = 1;
577	#ifdef WIN32
578	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
579	#else
580	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
581	#endif
582	errno = old_errno;	633	errno = old_errno;
583	}	634	}
584	}	635	}
585		636
586	void	637	void
587	ev_feed_signal_event (EV_P_ int signum)	638	ev_feed_signal_event (EV_P_ int signum)
588	{	639	{
589	WL w;	640	WL w;
590		641
591	#if EV_MULTIPLICITY	642	#if EV_MULTIPLICITY
592	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	643	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
593	#endif	644	#endif
594		645
595	--signum;	646	--signum;
596		647
597	if (signum < 0 \|\| signum >= signalmax)	648	if (signum < 0 \|\| signum >= signalmax)
…		…
606	static void	657	static void
607	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
608	{	659	{
609	int signum;	660	int signum;
610		661
611	#ifdef WIN32
612	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
613	#else
614	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
615	#endif
616	gotsig = 0;	663	gotsig = 0;
617		664
618	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
619	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
620	ev_feed_signal_event (EV_A_ signum + 1);	667	ev_feed_signal_event (EV_A_ signum + 1);
621	}	668	}
622		669
623	static void	670	static void
		671	fd_intern (int fd)
		672	{
		673	#ifdef _WIN32
		674	int arg = 1;
		675	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		676	#else
		677	fcntl (fd, F_SETFD, FD_CLOEXEC);
		678	fcntl (fd, F_SETFL, O_NONBLOCK);
		679	#endif
		680	}
		681
		682	static void
624	siginit (EV_P)	683	siginit (EV_P)
625	{	684	{
626	#ifndef WIN32	685	fd_intern (sigpipe [0]);
627	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	fd_intern (sigpipe [1]);
628	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
629
630	/* rather than sort out wether we really need nb, set it */
631	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
632	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
633	#endif
634		687
635	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
636	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
637	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
638	}	691	}
639		692
640	/*****************************************************************************/	693	/*****************************************************************************/
641		694
642	static struct ev_child *childs [PID_HASHSIZE];	695	static struct ev_child *childs [PID_HASHSIZE];
643		696
644	#ifndef WIN32	697	#ifndef _WIN32
645		698
646	static struct ev_signal childev;	699	static struct ev_signal childev;
647		700
648	#ifndef WCONTINUED	701	#ifndef WCONTINUED
649	# define WCONTINUED 0	702	# define WCONTINUED 0
…		…
681		734
682	#endif	735	#endif
683		736
684	/*****************************************************************************/	737	/*****************************************************************************/
685		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
686	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
687	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
688	#endif	744	#endif
689	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
690	# include "ev_epoll.c"	746	# include "ev_epoll.c"
…		…
710		766
711	/* return true if we are running with elevated privileges and should ignore env variables */	767	/* return true if we are running with elevated privileges and should ignore env variables */
712	static int	768	static int
713	enable_secure (void)	769	enable_secure (void)
714	{	770	{
715	#ifdef WIN32	771	#ifdef _WIN32
716	return 0;	772	return 0;
717	#else	773	#else
718	return getuid () != geteuid ()	774	return getuid () != geteuid ()
719	\|\| getgid () != getegid ();	775	\|\| getgid () != getegid ();
720	#endif	776	#endif
721	}	777	}
722		778
723	int	779	unsigned int
724	ev_method (EV_P)	780	ev_method (EV_P)
725	{	781	{
726	return method;	782	return method;
727	}	783	}
728		784
729	static void	785	static void
730	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
731	{	787	{
732	if (!method)	788	if (!method)
733	{	789	{
734	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
735	{	791	{
…		…
742	ev_rt_now = ev_time ();	798	ev_rt_now = ev_time ();
743	mn_now = get_clock ();	799	mn_now = get_clock ();
744	now_floor = mn_now;	800	now_floor = mn_now;
745	rtmn_diff = ev_rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
746		802
747	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
748	if (!enable_secure () && getenv ("LIBEV_METHODS"))
749	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
750	else	805
751	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags \|= 0x0000ffff;
752		808
753	method = 0;	809	method = 0;
754	#if EV_USE_WIN32	810	#if EV_USE_PORT
755	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
756	#endif	812	#endif
757	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
758	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
759	#endif	815	#endif
760	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
761	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
762	#endif	818	#endif
763	#if EV_USE_POLL	819	#if EV_USE_POLL
764	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
765	#endif	821	#endif
766	#if EV_USE_SELECT	822	#if EV_USE_SELECT
767	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
768	#endif	824	#endif
769		825
770	ev_init (&sigev, sigcb);	826	ev_init (&sigev, sigcb);
771	ev_set_priority (&sigev, EV_MAXPRI);	827	ev_set_priority (&sigev, EV_MAXPRI);
772	}	828	}
773	}	829	}
774		830
775	void	831	static void
776	loop_destroy (EV_P)	832	loop_destroy (EV_P)
777	{	833	{
778	int i;	834	int i;
779		835
780	#if EV_USE_WIN32	836	#if EV_USE_PORT
781	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
782	#endif	838	#endif
783	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
784	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
785	#endif	841	#endif
786	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
…		…
795		851
796	for (i = NUMPRI; i--; )	852	for (i = NUMPRI; i--; )
797	array_free (pending, [i]);	853	array_free (pending, [i]);
798		854
799	/* have to use the microsoft-never-gets-it-right macro */	855	/* have to use the microsoft-never-gets-it-right macro */
800	array_free_microshit (fdchange);	856	array_free (fdchange, EMPTY0);
801	array_free_microshit (timer);	857	array_free (timer, EMPTY0);
802	array_free_microshit (periodic);	858	#if EV_PERIODICS
803	array_free_microshit (idle);	859	array_free (periodic, EMPTY0);
804	array_free_microshit (prepare);	860	#endif
805	array_free_microshit (check);	861	array_free (idle, EMPTY0);
		862	array_free (prepare, EMPTY0);
		863	array_free (check, EMPTY0);
806		864
807	method = 0;	865	method = 0;
808	}	866	}
809		867
810	static void	868	static void
811	loop_fork (EV_P)	869	loop_fork (EV_P)
812	{	870	{
		871	#if EV_USE_PORT
		872	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		873	#endif
		874	#if EV_USE_KQUEUE
		875	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		876	#endif
813	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
814	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
815	#endif
816	#if EV_USE_KQUEUE
817	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
818	#endif	879	#endif
819		880
820	if (ev_is_active (&sigev))	881	if (ev_is_active (&sigev))
821	{	882	{
822	/* default loop */	883	/* default loop */
…		…
835	postfork = 0;	896	postfork = 0;
836	}	897	}
837		898
838	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
839	struct ev_loop *	900	struct ev_loop *
840	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
841	{	902	{
842	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	903	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
843		904
844	memset (loop, 0, sizeof (struct ev_loop));	905	memset (loop, 0, sizeof (struct ev_loop));
845		906
846	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
847		908
848	if (ev_method (EV_A))	909	if (ev_method (EV_A))
849	return loop;	910	return loop;
850		911
851	return 0;	912	return 0;
…		…
866		927
867	#endif	928	#endif
868		929
869	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
870	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
871	#else	933	#else
872	int	934	int
		935	ev_default_loop (unsigned int flags)
873	#endif	936	#endif
874	ev_default_loop (int methods)
875	{	937	{
876	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
877	if (pipe (sigpipe))	939	if (pipe (sigpipe))
878	return 0;	940	return 0;
879		941
880	if (!default_loop)	942	if (!ev_default_loop_ptr)
881	{	943	{
882	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
883	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
884	#else	946	#else
885	default_loop = 1;	947	ev_default_loop_ptr = 1;
886	#endif	948	#endif
887		949
888	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
889		951
890	if (ev_method (EV_A))	952	if (ev_method (EV_A))
891	{	953	{
892	siginit (EV_A);	954	siginit (EV_A);
893		955
894	#ifndef WIN32	956	#ifndef _WIN32
895	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
896	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
897	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
898	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
899	#endif	961	#endif
900	}	962	}
901	else	963	else
902	default_loop = 0;	964	ev_default_loop_ptr = 0;
903	}	965	}
904		966
905	return default_loop;	967	return ev_default_loop_ptr;
906	}	968	}
907		969
908	void	970	void
909	ev_default_destroy (void)	971	ev_default_destroy (void)
910	{	972	{
911	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
912	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
913	#endif	975	#endif
914		976
915	#ifndef WIN32	977	#ifndef _WIN32
916	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
917	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
918	#endif	980	#endif
919		981
920	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
…		…
928		990
929	void	991	void
930	ev_default_fork (void)	992	ev_default_fork (void)
931	{	993	{
932	#if EV_MULTIPLICITY	994	#if EV_MULTIPLICITY
933	struct ev_loop *loop = default_loop;	995	struct ev_loop *loop = ev_default_loop_ptr;
934	#endif	996	#endif
935		997
936	if (method)	998	if (method)
937	postfork = 1;	999	postfork = 1;
938	}	1000	}
…		…
949	return 1;	1011	return 1;
950		1012
951	return 0;	1013	return 0;
952	}	1014	}
953		1015
954	static void	1016	inline void
955	call_pending (EV_P)	1017	call_pending (EV_P)
956	{	1018	{
957	int pri;	1019	int pri;
958		1020
959	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
960	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
961	{	1023	{
962	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
963		1025
964	if (p->w)	1026	if (expect_true (p->w))
965	{	1027	{
966	p->w->pending = 0;	1028	p->w->pending = 0;
967	EV_CB_INVOKE (p->w, p->events);	1029	EV_CB_INVOKE (p->w, p->events);
968	}	1030	}
969	}	1031	}
970	}	1032	}
971		1033
972	static void	1034	inline void
973	timers_reify (EV_P)	1035	timers_reify (EV_P)
974	{	1036	{
975	while (timercnt && ((WT)timers [0])->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
976	{	1038	{
977	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
…		…
980		1042
981	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
982	if (w->repeat)	1044	if (w->repeat)
983	{	1045	{
984	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1046	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1047
985	((WT)w)->at = mn_now + w->repeat;	1048	((WT)w)->at += w->repeat;
		1049	if (((WT)w)->at < mn_now)
		1050	((WT)w)->at = mn_now;
		1051
986	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
987	}	1053	}
988	else	1054	else
989	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
990		1056
991	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
992	}	1058	}
993	}	1059	}
994		1060
995	static void	1061	#if EV_PERIODICS
		1062	inline void
996	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
997	{	1064	{
998	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
999	{	1066	{
1000	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
…		…
1002	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
1003		1070
1004	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
1005	if (w->reschedule_cb)	1072	if (w->reschedule_cb)
1006	{	1073	{
1007	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);	1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
1008
1009	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));	1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
1010	downheap ((WT *)periodics, periodiccnt, 0);	1076	downheap ((WT *)periodics, periodiccnt, 0);
1011	}	1077	}
1012	else if (w->interval)	1078	else if (w->interval)
1013	{	1079	{
…		…
1040		1106
1041	/* now rebuild the heap */	1107	/* now rebuild the heap */
1042	for (i = periodiccnt >> 1; i--; )	1108	for (i = periodiccnt >> 1; i--; )
1043	downheap ((WT *)periodics, periodiccnt, i);	1109	downheap ((WT *)periodics, periodiccnt, i);
1044	}	1110	}
		1111	#endif
1045		1112
1046	inline int	1113	inline int
1047	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
1048	{	1115	{
1049	mn_now = get_clock ();	1116	mn_now = get_clock ();
…		…
1059	ev_rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
1060	return 1;	1127	return 1;
1061	}	1128	}
1062	}	1129	}
1063		1130
1064	static void	1131	inline void
1065	time_update (EV_P)	1132	time_update (EV_P)
1066	{	1133	{
1067	int i;	1134	int i;
1068		1135
1069	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
1083	ev_rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
1084	mn_now = get_clock ();	1151	mn_now = get_clock ();
1085	now_floor = mn_now;	1152	now_floor = mn_now;
1086	}	1153	}
1087		1154
		1155	# if EV_PERIODICS
1088	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
1089	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
1090	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1091	}	1160	}
1092	}	1161	}
1093	else	1162	else
…		…
1095	{	1164	{
1096	ev_rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
1097		1166
1098	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1167	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1099	{	1168	{
		1169	#if EV_PERIODICS
1100	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
1101		1172
1102	/* adjust timers. this is easy, as the offset is the same for all */	1173	/* adjust timers. this is easy, as the offset is the same for all */
1103	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
1104	((WT)timers [i])->at += ev_rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
1105	}	1176	}
…		…
1126	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
1127	{	1198	{
1128	double block;	1199	double block;
1129	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1130		1201
1131	do	1202	while (activecnt)
1132	{	1203	{
1133	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
1134	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
1135	{	1206	{
1136	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1168	{	1239	{
1169	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1170	if (block > to) block = to;	1241	if (block > to) block = to;
1171	}	1242	}
1172		1243
		1244	#if EV_PERIODICS
1173	if (periodiccnt)	1245	if (periodiccnt)
1174	{	1246	{
1175	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1176	if (block > to) block = to;	1248	if (block > to) block = to;
1177	}	1249	}
		1250	#endif
1178		1251
1179	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
1180	}	1253	}
1181		1254
1182	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
1183		1256
1184	/* update ev_rt_now, do magic */	1257	/* update ev_rt_now, do magic */
1185	time_update (EV_A);	1258	time_update (EV_A);
1186		1259
1187	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
1188	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
1189	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
1190		1265
1191	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
1192	if (idlecnt && !any_pending (EV_A))	1267	if (idlecnt && !any_pending (EV_A))
1193	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1194		1269
1195	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
1196	if (checkcnt)	1271	if (expect_false (checkcnt))
1197	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1198		1273
1199	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
1200	}	1278	}
1201	while (activecnt && !loop_done);
1202		1279
1203	if (loop_done != 2)	1280	if (loop_done != 2)
1204	loop_done = 0;	1281	loop_done = 0;
1205	}	1282	}
1206		1283
…		…
1266	void	1343	void
1267	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1268	{	1345	{
1269	int fd = w->fd;	1346	int fd = w->fd;
1270		1347
1271	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1272	return;	1349	return;
1273		1350
1274	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1275		1352
1276	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
…		…
1282		1359
1283	void	1360	void
1284	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1285	{	1362	{
1286	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1287	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1288	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1289		1368
1290	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1291	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1292		1371
1293	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1294	}	1373	}
1295		1374
1296	void	1375	void
1297	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1298	{	1377	{
1299	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1300	return;	1379	return;
1301		1380
1302	((WT)w)->at += mn_now;	1381	((WT)w)->at += mn_now;
1303		1382
1304	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1383	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1305		1384
1306	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1307	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1308	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1309	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
1310		1389
1311	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1312	}	1391	}
1313		1392
1314	void	1393	void
1315	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1316	{	1395	{
1317	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1318	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1319	return;	1398	return;
1320		1399
1321	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1322		1401
1323	if (((W)w)->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1324	{	1403	{
1325	timers [((W)w)->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1326	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1327	}	1406	}
1328		1407
1329	((WT)w)->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1330		1409
1331	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1332	}	1411	}
1333		1412
1334	void	1413	void
1335	ev_timer_again (EV_P_ struct ev_timer *w)	1414	ev_timer_again (EV_P_ struct ev_timer *w)
1336	{	1415	{
1337	if (ev_is_active (w))	1416	if (ev_is_active (w))
1338	{	1417	{
1339	if (w->repeat)	1418	if (w->repeat)
		1419	{
		1420	((WT)w)->at = mn_now + w->repeat;
1340	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1, mn_now + w->repeat);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
		1422	}
1341	else	1423	else
1342	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1343	}	1425	}
1344	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1345	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1346	}	1431	}
1347		1432
		1433	#if EV_PERIODICS
1348	void	1434	void
1349	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1350	{	1436	{
1351	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1352	return;	1438	return;
1353		1439
1354	if (w->reschedule_cb)	1440	if (w->reschedule_cb)
1355	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);	1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1356	else if (w->interval)	1442	else if (w->interval)
…		…
1359	/* this formula differs from the one in periodic_reify because we do not always round up */	1445	/* this formula differs from the one in periodic_reify because we do not always round up */
1360	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;	1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1361	}	1447	}
1362		1448
1363	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1364	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1365	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1366	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
1367		1453
1368	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1369	}	1455	}
1370		1456
1371	void	1457	void
1372	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1373	{	1459	{
1374	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1375	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1376	return;	1462	return;
1377		1463
1378	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1379		1465
1380	if (((W)w)->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1381	{	1467	{
1382	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1383	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1384	}	1470	}
1385		1471
1386	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1387	}	1473	}
1388		1474
…		…
1391	{	1477	{
1392	/* TODO: use adjustheap and recalculation */	1478	/* TODO: use adjustheap and recalculation */
1393	ev_periodic_stop (EV_A_ w);	1479	ev_periodic_stop (EV_A_ w);
1394	ev_periodic_start (EV_A_ w);	1480	ev_periodic_start (EV_A_ w);
1395	}	1481	}
		1482	#endif
1396		1483
1397	void	1484	void
1398	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1399	{	1486	{
1400	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1401	return;	1488	return;
1402		1489
1403	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1404	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1405	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1406	}	1493	}
1407		1494
1408	void	1495	void
1409	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1410	{	1497	{
1411	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1412	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1413	return;	1500	return;
1414		1501
1415	idles [((W)w)->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1416	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1417	}	1504	}
1418		1505
1419	void	1506	void
1420	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1421	{	1508	{
1422	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1423	return;	1510	return;
1424		1511
1425	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1426	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1427	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1428	}	1515	}
1429		1516
1430	void	1517	void
1431	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1432	{	1519	{
1433	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1434	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1435	return;	1522	return;
1436		1523
1437	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1438	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1439	}	1526	}
1440		1527
1441	void	1528	void
1442	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1443	{	1530	{
1444	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1445	return;	1532	return;
1446		1533
1447	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1448	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1449	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1450	}	1537	}
1451		1538
1452	void	1539	void
1453	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1454	{	1541	{
1455	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1456	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1457	return;	1544	return;
1458		1545
1459	checks [((W)w)->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1460	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1461	}	1548	}
…		…
1466		1553
1467	void	1554	void
1468	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1469	{	1556	{
1470	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1471	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1558	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1472	#endif	1559	#endif
1473	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1474	return;	1561	return;
1475		1562
1476	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1563	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1477		1564
1478	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1479	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1480	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1481		1568
1482	if (!((WL)w)->next)	1569	if (!((WL)w)->next)
1483	{	1570	{
1484	#if WIN32	1571	#if _WIN32
1485	signal (w->signum, sighandler);	1572	signal (w->signum, sighandler);
1486	#else	1573	#else
1487	struct sigaction sa;	1574	struct sigaction sa;
1488	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1489	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
…		…
1495		1582
1496	void	1583	void
1497	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1498	{	1585	{
1499	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1500	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1501	return;	1588	return;
1502		1589
1503	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1504	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1505		1592
…		…
1509		1596
1510	void	1597	void
1511	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1512	{	1599	{
1513	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1514	assert (("child watchers are only supported in the default loop", loop == default_loop));	1601	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1515	#endif	1602	#endif
1516	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1517	return;	1604	return;
1518		1605
1519	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1520	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1521	}	1608	}
1522		1609
1523	void	1610	void
1524	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1525	{	1612	{
1526	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1527	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1528	return;	1615	return;
1529		1616
1530	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1531	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1532	}	1619	}
…		…
1569	void	1656	void
1570	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1657	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1571	{	1658	{
1572	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1659	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1573		1660
1574	if (!once)	1661	if (expect_false (!once))
		1662	{
1575	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1663	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1576	else	1664	return;
1577	{	1665	}
		1666
1578	once->cb = cb;	1667	once->cb = cb;
1579	once->arg = arg;	1668	once->arg = arg;
1580		1669
1581	ev_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1582	if (fd >= 0)	1671	if (fd >= 0)
1583	{	1672	{
1584	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1585	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1586	}	1675	}
1587		1676
1588	ev_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1589	if (timeout >= 0.)	1678	if (timeout >= 0.)
1590	{	1679	{
1591	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1592	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1593	}
1594	}	1682	}
1595	}	1683	}
1596		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

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Comparing libev/ev.c (file contents): Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs. Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.85 by root, Sat Nov 10 03:13:50 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC