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

Comparing libev/ev.c (file contents):
Revision 1.83 by root, Fri Nov 9 21:48:23 2007 UTC vs.
Revision 1.126 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);
…		…
271	#endif	327	#endif
272		328
273	return ev_time ();	329	return ev_time ();
274	}	330	}
275		331
		332	#if EV_MULTIPLICITY
276	ev_tstamp	333	ev_tstamp
277	ev_now (EV_P)	334	ev_now (EV_P)
278	{	335	{
279	return rt_now;	336	return ev_rt_now;
280	}	337	}
		338	#endif
281		339
282	#define array_roundsize(type,n) ((n) \| 4 & ~3)	340	#define array_roundsize(type,n) (((n) \| 4) & ~3)
283		341
284	#define array_needsize(type,base,cur,cnt,init) \	342	#define array_needsize(type,base,cur,cnt,init) \
285	if (expect_false ((cnt) > cur)) \	343	if (expect_false ((cnt) > cur)) \
286	{ \	344	{ \
287	int newcnt = cur; \	345	int newcnt = cur; \
…		…
302	stem ## max = array_roundsize (stem ## cnt >> 1); \	360	stem ## max = array_roundsize (stem ## cnt >> 1); \
303	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	361	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
304	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	362	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
305	}	363	}
306		364
307	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
308	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
309	#define array_free_microshit(stem) \
310	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
311
312	#define array_free(stem, idx) \	365	#define array_free(stem, idx) \
313	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;
314		367
315	/*****************************************************************************/	368	/*****************************************************************************/
316		369
…		…
330	void	383	void
331	ev_feed_event (EV_P_ void *w, int revents)	384	ev_feed_event (EV_P_ void *w, int revents)
332	{	385	{
333	W w_ = (W)w;	386	W w_ = (W)w;
334		387
335	if (w_->pending)	388	if (expect_false (w_->pending))
336	{	389	{
337	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	390	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
338	return;	391	return;
339	}	392	}
340		393
341	w_->pending = ++pendingcnt [ABSPRI (w_)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
342	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);
343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
345	}	398	}
346		399
347	static void	400	static void
…		…
374	fd_event (EV_A_ fd, revents);	427	fd_event (EV_A_ fd, revents);
375	}	428	}
376		429
377	/*****************************************************************************/	430	/*****************************************************************************/
378		431
379	static void	432	inline void
380	fd_reify (EV_P)	433	fd_reify (EV_P)
381	{	434	{
382	int i;	435	int i;
383		436
384	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
390	int events = 0;	443	int events = 0;
391		444
392	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)
393	events \|= w->events;	446	events \|= w->events;
394		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
395	anfd->reify = 0;	457	anfd->reify = 0;
396		458
397	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
398	anfd->events = events;	460	anfd->events = events;
399	}	461	}
…		…
402	}	464	}
403		465
404	static void	466	static void
405	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
406	{	468	{
407	if (anfds [fd].reify)	469	if (expect_false (anfds [fd].reify))
408	return;	470	return;
409		471
410	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
411		473
412	++fdchangecnt;	474	++fdchangecnt;
413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
414	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
415	}	477	}
416		478
417	static void	479	static void
418	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
424	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
425	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);
426	}	488	}
427	}	489	}
428		490
429	static int	491	inline int
430	fd_valid (int fd)	492	fd_valid (int fd)
431	{	493	{
432	#ifdef WIN32	494	#ifdef _WIN32
433	return !!win32_get_osfhandle (fd);	495	return _get_osfhandle (fd) != -1;
434	#else	496	#else
435	return fcntl (fd, F_GETFD) != -1;	497	return fcntl (fd, F_GETFD) != -1;
436	#endif	498	#endif
437	}	499	}
438		500
…		…
518		580
519	heap [k] = w;	581	heap [k] = w;
520	((W)heap [k])->active = k + 1;	582	((W)heap [k])->active = k + 1;
521	}	583	}
522		584
		585	inline void
		586	adjustheap (WT *heap, int N, int k)
		587	{
		588	upheap (heap, k);
		589	downheap (heap, N, k);
		590	}
		591
523	/*****************************************************************************/	592	/*****************************************************************************/
524		593
525	typedef struct	594	typedef struct
526	{	595	{
527	WL head;	596	WL head;
…		…
548	}	617	}
549		618
550	static void	619	static void
551	sighandler (int signum)	620	sighandler (int signum)
552	{	621	{
553	#if WIN32	622	#if _WIN32
554	signal (signum, sighandler);	623	signal (signum, sighandler);
555	#endif	624	#endif
556		625
557	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
558		627
559	if (!gotsig)	628	if (!gotsig)
560	{	629	{
561	int old_errno = errno;	630	int old_errno = errno;
562	gotsig = 1;	631	gotsig = 1;
563	#ifdef WIN32
564	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
565	#else
566	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
567	#endif
568	errno = old_errno;	633	errno = old_errno;
569	}	634	}
570	}	635	}
571		636
572	void	637	void
573	ev_feed_signal_event (EV_P_ int signum)	638	ev_feed_signal_event (EV_P_ int signum)
574	{	639	{
575	WL w;	640	WL w;
576		641
577	#if EV_MULTIPLICITY	642	#if EV_MULTIPLICITY
578	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));
579	#endif	644	#endif
580		645
581	--signum;	646	--signum;
582		647
583	if (signum < 0 \|\| signum >= signalmax)	648	if (signum < 0 \|\| signum >= signalmax)
…		…
592	static void	657	static void
593	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
594	{	659	{
595	int signum;	660	int signum;
596		661
597	#ifdef WIN32
598	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
599	#else
600	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
601	#endif
602	gotsig = 0;	663	gotsig = 0;
603		664
604	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
605	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
606	ev_feed_signal_event (EV_A_ signum + 1);	667	ev_feed_signal_event (EV_A_ signum + 1);
607	}	668	}
608		669
609	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
610	siginit (EV_P)	683	siginit (EV_P)
611	{	684	{
612	#ifndef WIN32	685	fd_intern (sigpipe [0]);
613	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	fd_intern (sigpipe [1]);
614	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
615
616	/* rather than sort out wether we really need nb, set it */
617	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
618	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
619	#endif
620		687
621	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
622	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
623	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
624	}	691	}
625		692
626	/*****************************************************************************/	693	/*****************************************************************************/
627		694
628	static struct ev_child *childs [PID_HASHSIZE];	695	static struct ev_child *childs [PID_HASHSIZE];
629		696
630	#ifndef WIN32	697	#ifndef _WIN32
631		698
632	static struct ev_signal childev;	699	static struct ev_signal childev;
633		700
634	#ifndef WCONTINUED	701	#ifndef WCONTINUED
635	# define WCONTINUED 0	702	# define WCONTINUED 0
…		…
667		734
668	#endif	735	#endif
669		736
670	/*****************************************************************************/	737	/*****************************************************************************/
671		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
672	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
673	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
674	#endif	744	#endif
675	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
676	# include "ev_epoll.c"	746	# include "ev_epoll.c"
…		…
696		766
697	/* 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 */
698	static int	768	static int
699	enable_secure (void)	769	enable_secure (void)
700	{	770	{
701	#ifdef WIN32	771	#ifdef _WIN32
702	return 0;	772	return 0;
703	#else	773	#else
704	return getuid () != geteuid ()	774	return getuid () != geteuid ()
705	\|\| getgid () != getegid ();	775	\|\| getgid () != getegid ();
706	#endif	776	#endif
707	}	777	}
708		778
709	int	779	unsigned int
710	ev_method (EV_P)	780	ev_method (EV_P)
711	{	781	{
712	return method;	782	return method;
713	}	783	}
714		784
715	static void	785	static void
716	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
717	{	787	{
718	if (!method)	788	if (!method)
719	{	789	{
720	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
721	{	791	{
…		…
723	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
724	have_monotonic = 1;	794	have_monotonic = 1;
725	}	795	}
726	#endif	796	#endif
727		797
728	rt_now = ev_time ();	798	ev_rt_now = ev_time ();
729	mn_now = get_clock ();	799	mn_now = get_clock ();
730	now_floor = mn_now;	800	now_floor = mn_now;
731	rtmn_diff = rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
732		802
733	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
734	if (!enable_secure () && getenv ("LIBEV_METHODS"))
735	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
736	else	805
737	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags \|= 0x0000ffff;
738		808
739	method = 0;	809	method = 0;
740	#if EV_USE_WIN32	810	#if EV_USE_PORT
741	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
742	#endif	812	#endif
743	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
744	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
745	#endif	815	#endif
746	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
747	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
748	#endif	818	#endif
749	#if EV_USE_POLL	819	#if EV_USE_POLL
750	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
751	#endif	821	#endif
752	#if EV_USE_SELECT	822	#if EV_USE_SELECT
753	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
754	#endif	824	#endif
755		825
756	ev_init (&sigev, sigcb);	826	ev_init (&sigev, sigcb);
757	ev_set_priority (&sigev, EV_MAXPRI);	827	ev_set_priority (&sigev, EV_MAXPRI);
758	}	828	}
759	}	829	}
760		830
761	void	831	static void
762	loop_destroy (EV_P)	832	loop_destroy (EV_P)
763	{	833	{
764	int i;	834	int i;
765		835
766	#if EV_USE_WIN32	836	#if EV_USE_PORT
767	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
768	#endif	838	#endif
769	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
770	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
771	#endif	841	#endif
772	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
…		…
781		851
782	for (i = NUMPRI; i--; )	852	for (i = NUMPRI; i--; )
783	array_free (pending, [i]);	853	array_free (pending, [i]);
784		854
785	/* have to use the microsoft-never-gets-it-right macro */	855	/* have to use the microsoft-never-gets-it-right macro */
786	array_free_microshit (fdchange);	856	array_free (fdchange, EMPTY0);
787	array_free_microshit (timer);	857	array_free (timer, EMPTY0);
788	array_free_microshit (periodic);	858	#if EV_PERIODICS
789	array_free_microshit (idle);	859	array_free (periodic, EMPTY0);
790	array_free_microshit (prepare);	860	#endif
791	array_free_microshit (check);	861	array_free (idle, EMPTY0);
		862	array_free (prepare, EMPTY0);
		863	array_free (check, EMPTY0);
792		864
793	method = 0;	865	method = 0;
794	}	866	}
795		867
796	static void	868	static void
797	loop_fork (EV_P)	869	loop_fork (EV_P)
798	{	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
799	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
800	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
801	#endif
802	#if EV_USE_KQUEUE
803	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
804	#endif	879	#endif
805		880
806	if (ev_is_active (&sigev))	881	if (ev_is_active (&sigev))
807	{	882	{
808	/* default loop */	883	/* default loop */
…		…
821	postfork = 0;	896	postfork = 0;
822	}	897	}
823		898
824	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
825	struct ev_loop *	900	struct ev_loop *
826	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
827	{	902	{
828	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));
829		904
830	memset (loop, 0, sizeof (struct ev_loop));	905	memset (loop, 0, sizeof (struct ev_loop));
831		906
832	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
833		908
834	if (ev_method (EV_A))	909	if (ev_method (EV_A))
835	return loop;	910	return loop;
836		911
837	return 0;	912	return 0;
…		…
852		927
853	#endif	928	#endif
854		929
855	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
856	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
857	#else	933	#else
858	int	934	int
		935	ev_default_loop (unsigned int flags)
859	#endif	936	#endif
860	ev_default_loop (int methods)
861	{	937	{
862	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
863	if (pipe (sigpipe))	939	if (pipe (sigpipe))
864	return 0;	940	return 0;
865		941
866	if (!default_loop)	942	if (!ev_default_loop_ptr)
867	{	943	{
868	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
869	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
870	#else	946	#else
871	default_loop = 1;	947	ev_default_loop_ptr = 1;
872	#endif	948	#endif
873		949
874	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
875		951
876	if (ev_method (EV_A))	952	if (ev_method (EV_A))
877	{	953	{
878	siginit (EV_A);	954	siginit (EV_A);
879		955
880	#ifndef WIN32	956	#ifndef _WIN32
881	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
882	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
883	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
884	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
885	#endif	961	#endif
886	}	962	}
887	else	963	else
888	default_loop = 0;	964	ev_default_loop_ptr = 0;
889	}	965	}
890		966
891	return default_loop;	967	return ev_default_loop_ptr;
892	}	968	}
893		969
894	void	970	void
895	ev_default_destroy (void)	971	ev_default_destroy (void)
896	{	972	{
897	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
898	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
899	#endif	975	#endif
900		976
901	#ifndef WIN32	977	#ifndef _WIN32
902	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
903	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
904	#endif	980	#endif
905		981
906	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
…		…
914		990
915	void	991	void
916	ev_default_fork (void)	992	ev_default_fork (void)
917	{	993	{
918	#if EV_MULTIPLICITY	994	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	995	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	996	#endif
921		997
922	if (method)	998	if (method)
923	postfork = 1;	999	postfork = 1;
924	}	1000	}
…		…
935	return 1;	1011	return 1;
936		1012
937	return 0;	1013	return 0;
938	}	1014	}
939		1015
940	static void	1016	inline void
941	call_pending (EV_P)	1017	call_pending (EV_P)
942	{	1018	{
943	int pri;	1019	int pri;
944		1020
945	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
946	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
947	{	1023	{
948	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
949		1025
950	if (p->w)	1026	if (expect_true (p->w))
951	{	1027	{
952	p->w->pending = 0;	1028	p->w->pending = 0;
953	EV_CB_INVOKE (p->w, p->events);	1029	EV_CB_INVOKE (p->w, p->events);
954	}	1030	}
955	}	1031	}
956	}	1032	}
957		1033
958	static void	1034	inline void
959	timers_reify (EV_P)	1035	timers_reify (EV_P)
960	{	1036	{
961	while (timercnt && ((WT)timers [0])->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
962	{	1038	{
963	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
…		…
966		1042
967	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
968	if (w->repeat)	1044	if (w->repeat)
969	{	1045	{
970	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
971	((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
972	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
973	}	1053	}
974	else	1054	else
975	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
976		1056
977	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
978	}	1058	}
979	}	1059	}
980		1060
981	static void	1061	#if EV_PERIODICS
		1062	inline void
982	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
983	{	1064	{
984	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
985	{	1066	{
986	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
987		1068
988	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
989		1070
990	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
991	if (w->reschedule_cb)	1072	if (w->reschedule_cb)
992	{	1073	{
993	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
994
995	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
996	downheap ((WT *)periodics, periodiccnt, 0);	1076	downheap ((WT *)periodics, periodiccnt, 0);
997	}	1077	}
998	else if (w->interval)	1078	else if (w->interval)
999	{	1079	{
1000	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1080	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
1001	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1081	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
1002	downheap ((WT *)periodics, periodiccnt, 0);	1082	downheap ((WT *)periodics, periodiccnt, 0);
1003	}	1083	}
1004	else	1084	else
1005	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1006		1086
…		…
1017	for (i = 0; i < periodiccnt; ++i)	1097	for (i = 0; i < periodiccnt; ++i)
1018	{	1098	{
1019	struct ev_periodic *w = periodics [i];	1099	struct ev_periodic *w = periodics [i];
1020		1100
1021	if (w->reschedule_cb)	1101	if (w->reschedule_cb)
1022	((WT)w)->at = w->reschedule_cb (w, rt_now);	1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1023	else if (w->interval)	1103	else if (w->interval)
1024	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1104	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1025	}	1105	}
1026		1106
1027	/* now rebuild the heap */	1107	/* now rebuild the heap */
1028	for (i = periodiccnt >> 1; i--; )	1108	for (i = periodiccnt >> 1; i--; )
1029	downheap ((WT *)periodics, periodiccnt, i);	1109	downheap ((WT *)periodics, periodiccnt, i);
1030	}	1110	}
		1111	#endif
1031		1112
1032	inline int	1113	inline int
1033	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
1034	{	1115	{
1035	mn_now = get_clock ();	1116	mn_now = get_clock ();
1036		1117
1037	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1038	{	1119	{
1039	rt_now = rtmn_diff + mn_now;	1120	ev_rt_now = rtmn_diff + mn_now;
1040	return 0;	1121	return 0;
1041	}	1122	}
1042	else	1123	else
1043	{	1124	{
1044	now_floor = mn_now;	1125	now_floor = mn_now;
1045	rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
1046	return 1;	1127	return 1;
1047	}	1128	}
1048	}	1129	}
1049		1130
1050	static void	1131	inline void
1051	time_update (EV_P)	1132	time_update (EV_P)
1052	{	1133	{
1053	int i;	1134	int i;
1054		1135
1055	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
1059	{	1140	{
1060	ev_tstamp odiff = rtmn_diff;	1141	ev_tstamp odiff = rtmn_diff;
1061		1142
1062	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1143	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1063	{	1144	{
1064	rtmn_diff = rt_now - mn_now;	1145	rtmn_diff = ev_rt_now - mn_now;
1065		1146
1066	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1067	return; /* all is well */	1148	return; /* all is well */
1068		1149
1069	rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
1070	mn_now = get_clock ();	1151	mn_now = get_clock ();
1071	now_floor = mn_now;	1152	now_floor = mn_now;
1072	}	1153	}
1073		1154
		1155	# if EV_PERIODICS
1074	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
1075	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
1076	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1077	}	1160	}
1078	}	1161	}
1079	else	1162	else
1080	#endif	1163	#endif
1081	{	1164	{
1082	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
1083		1166
1084	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1167	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1085	{	1168	{
		1169	#if EV_PERIODICS
1086	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
1087		1172
1088	/* 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 */
1089	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
1090	((WT)timers [i])->at += rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
1091	}	1176	}
1092		1177
1093	mn_now = rt_now;	1178	mn_now = ev_rt_now;
1094	}	1179	}
1095	}	1180	}
1096		1181
1097	void	1182	void
1098	ev_ref (EV_P)	1183	ev_ref (EV_P)
…		…
1112	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
1113	{	1198	{
1114	double block;	1199	double block;
1115	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1116		1201
1117	do	1202	while (activecnt)
1118	{	1203	{
1119	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
1120	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
1121	{	1206	{
1122	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1138	if (expect_true (have_monotonic))	1223	if (expect_true (have_monotonic))
1139	time_update_monotonic (EV_A);	1224	time_update_monotonic (EV_A);
1140	else	1225	else
1141	#endif	1226	#endif
1142	{	1227	{
1143	rt_now = ev_time ();	1228	ev_rt_now = ev_time ();
1144	mn_now = rt_now;	1229	mn_now = ev_rt_now;
1145	}	1230	}
1146		1231
1147	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1232	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1148	block = 0.;	1233	block = 0.;
1149	else	1234	else
…		…
1154	{	1239	{
1155	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1156	if (block > to) block = to;	1241	if (block > to) block = to;
1157	}	1242	}
1158		1243
		1244	#if EV_PERIODICS
1159	if (periodiccnt)	1245	if (periodiccnt)
1160	{	1246	{
1161	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1162	if (block > to) block = to;	1248	if (block > to) block = to;
1163	}	1249	}
		1250	#endif
1164		1251
1165	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
1166	}	1253	}
1167		1254
1168	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
1169		1256
1170	/* update rt_now, do magic */	1257	/* update ev_rt_now, do magic */
1171	time_update (EV_A);	1258	time_update (EV_A);
1172		1259
1173	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
1174	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
1175	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
1176		1265
1177	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
1178	if (idlecnt && !any_pending (EV_A))	1267	if (idlecnt && !any_pending (EV_A))
1179	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1180		1269
1181	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
1182	if (checkcnt)	1271	if (expect_false (checkcnt))
1183	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1184		1273
1185	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
1186	}	1278	}
1187	while (activecnt && !loop_done);
1188		1279
1189	if (loop_done != 2)	1280	if (loop_done != 2)
1190	loop_done = 0;	1281	loop_done = 0;
1191	}	1282	}
1192		1283
…		…
1252	void	1343	void
1253	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1254	{	1345	{
1255	int fd = w->fd;	1346	int fd = w->fd;
1256		1347
1257	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1258	return;	1349	return;
1259		1350
1260	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1261		1352
1262	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
…		…
1268		1359
1269	void	1360	void
1270	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1271	{	1362	{
1272	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1273	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1274	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1275		1368
1276	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1277	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1278		1371
1279	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1280	}	1373	}
1281		1374
1282	void	1375	void
1283	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1284	{	1377	{
1285	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1286	return;	1379	return;
1287		1380
1288	((WT)w)->at += mn_now;	1381	((WT)w)->at += mn_now;
1289		1382
1290	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.));
1291		1384
1292	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1293	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1294	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1295	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
1296		1389
1297	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1298	}	1391	}
1299		1392
1300	void	1393	void
1301	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1302	{	1395	{
1303	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1304	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1305	return;	1398	return;
1306		1399
1307	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1308		1401
1309	if (((W)w)->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1310	{	1403	{
1311	timers [((W)w)->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1312	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1313	}	1406	}
1314		1407
1315	((WT)w)->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1316		1409
1317	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1318	}	1411	}
1319		1412
1320	void	1413	void
…		…
1323	if (ev_is_active (w))	1416	if (ev_is_active (w))
1324	{	1417	{
1325	if (w->repeat)	1418	if (w->repeat)
1326	{	1419	{
1327	((WT)w)->at = mn_now + w->repeat;	1420	((WT)w)->at = mn_now + w->repeat;
1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1329	}	1422	}
1330	else	1423	else
1331	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1332	}	1425	}
1333	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1334	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1335	}	1431	}
1336		1432
		1433	#if EV_PERIODICS
1337	void	1434	void
1338	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1339	{	1436	{
1340	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1341	return;	1438	return;
1342		1439
1343	if (w->reschedule_cb)	1440	if (w->reschedule_cb)
1344	((WT)w)->at = w->reschedule_cb (w, rt_now);	1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1345	else if (w->interval)	1442	else if (w->interval)
1346	{	1443	{
1347	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1444	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1348	/* this formula differs from the one in periodic_reify because we do not always round up */	1445	/* this formula differs from the one in periodic_reify because we do not always round up */
1349	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1350	}	1447	}
1351		1448
1352	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1353	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1354	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1355	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
1356		1453
1357	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1358	}	1455	}
1359		1456
1360	void	1457	void
1361	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1362	{	1459	{
1363	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1364	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1365	return;	1462	return;
1366		1463
1367	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1368		1465
1369	if (((W)w)->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1370	{	1467	{
1371	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1372	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1373	}	1470	}
1374		1471
1375	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1376	}	1473	}
1377		1474
1378	void	1475	void
1379	ev_periodic_again (EV_P_ struct ev_periodic *w)	1476	ev_periodic_again (EV_P_ struct ev_periodic *w)
1380	{	1477	{
		1478	/* TODO: use adjustheap and recalculation */
1381	ev_periodic_stop (EV_A_ w);	1479	ev_periodic_stop (EV_A_ w);
1382	ev_periodic_start (EV_A_ w);	1480	ev_periodic_start (EV_A_ w);
1383	}	1481	}
		1482	#endif
1384		1483
1385	void	1484	void
1386	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1387	{	1486	{
1388	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1389	return;	1488	return;
1390		1489
1391	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1392	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1393	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1394	}	1493	}
1395		1494
1396	void	1495	void
1397	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1398	{	1497	{
1399	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1400	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1401	return;	1500	return;
1402		1501
1403	idles [((W)w)->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1404	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1405	}	1504	}
1406		1505
1407	void	1506	void
1408	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1409	{	1508	{
1410	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1411	return;	1510	return;
1412		1511
1413	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1414	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1415	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1416	}	1515	}
1417		1516
1418	void	1517	void
1419	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1420	{	1519	{
1421	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1423	return;	1522	return;
1424		1523
1425	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1426	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1427	}	1526	}
1428		1527
1429	void	1528	void
1430	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1431	{	1530	{
1432	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1433	return;	1532	return;
1434		1533
1435	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1436	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1437	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1438	}	1537	}
1439		1538
1440	void	1539	void
1441	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1442	{	1541	{
1443	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1444	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1445	return;	1544	return;
1446		1545
1447	checks [((W)w)->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1448	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1449	}	1548	}
…		…
1454		1553
1455	void	1554	void
1456	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1457	{	1556	{
1458	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1459	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));
1460	#endif	1559	#endif
1461	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1462	return;	1561	return;
1463		1562
1464	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));
1465		1564
1466	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1467	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1468	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1469		1568
1470	if (!((WL)w)->next)	1569	if (!((WL)w)->next)
1471	{	1570	{
1472	#if WIN32	1571	#if _WIN32
1473	signal (w->signum, sighandler);	1572	signal (w->signum, sighandler);
1474	#else	1573	#else
1475	struct sigaction sa;	1574	struct sigaction sa;
1476	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1477	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
…		…
1483		1582
1484	void	1583	void
1485	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1486	{	1585	{
1487	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1489	return;	1588	return;
1490		1589
1491	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1492	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1493		1592
…		…
1497		1596
1498	void	1597	void
1499	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1500	{	1599	{
1501	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1502	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));
1503	#endif	1602	#endif
1504	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1505	return;	1604	return;
1506		1605
1507	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1508	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1509	}	1608	}
1510		1609
1511	void	1610	void
1512	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1513	{	1612	{
1514	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1515	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1516	return;	1615	return;
1517		1616
1518	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1519	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1520	}	1619	}
…		…
1557	void	1656	void
1558	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)
1559	{	1658	{
1560	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));
1561		1660
1562	if (!once)	1661	if (expect_false (!once))
		1662	{
1563	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1663	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1564	else	1664	return;
1565	{	1665	}
		1666
1566	once->cb = cb;	1667	once->cb = cb;
1567	once->arg = arg;	1668	once->arg = arg;
1568		1669
1569	ev_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1570	if (fd >= 0)	1671	if (fd >= 0)
1571	{	1672	{
1572	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1573	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1574	}	1675	}
1575		1676
1576	ev_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1577	if (timeout >= 0.)	1678	if (timeout >= 0.)
1578	{	1679	{
1579	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1580	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1581	}
1582	}	1682	}
1583	}	1683	}
1584		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

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Comparing libev/ev.c (file contents): Revision 1.83 by root, Fri Nov 9 21:48:23 2007 UTC vs. Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.83 by root, Fri Nov 9 21:48:23 2007 UTC vs.
Revision 1.126 by root, Sun Nov 18 01:25:23 2007 UTC