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

Comparing libev/ev.c (file contents):
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC vs.
Revision 1.135 by root, Sat Nov 24 06:23:27 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
		37	# ifdef EV_CONFIG_H
		38	# include EV_CONFIG_H
		39	# else
32	# include "config.h"	40	# include "config.h"
		41	# endif
33		42
34	# if HAVE_CLOCK_GETTIME	43	# if HAVE_CLOCK_GETTIME
		44	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	45	# define EV_USE_MONOTONIC 1
		46	# endif
		47	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	48	# define EV_USE_REALTIME 1
		49	# endif
		50	# else
		51	# ifndef EV_USE_MONOTONIC
		52	# define EV_USE_MONOTONIC 0
		53	# endif
		54	# ifndef EV_USE_REALTIME
		55	# define EV_USE_REALTIME 0
		56	# endif
37	# endif	57	# endif
38		58
		59	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	60	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	61	# define EV_USE_SELECT 1
		62	# else
		63	# define EV_USE_SELECT 0
		64	# endif
41	# endif	65	# endif
42		66
		67	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	68	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	69	# define EV_USE_POLL 1
		70	# else
		71	# define EV_USE_POLL 0
		72	# endif
45	# endif	73	# endif
46		74
		75	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	76	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	77	# define EV_USE_EPOLL 1
		78	# else
		79	# define EV_USE_EPOLL 0
		80	# endif
49	# endif	81	# endif
50		82
		83	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	84	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	85	# define EV_USE_KQUEUE 1
		86	# else
		87	# define EV_USE_KQUEUE 0
		88	# endif
		89	# endif
		90
		91	# ifndef EV_USE_PORT
		92	# if HAVE_PORT_H && HAVE_PORT_CREATE
		93	# define EV_USE_PORT 1
		94	# else
		95	# define EV_USE_PORT 0
		96	# endif
53	# endif	97	# endif
54		98
55	#endif	99	#endif
56		100
57	#include <math.h>	101	#include <math.h>
…		…
66	#include <sys/types.h>	110	#include <sys/types.h>
67	#include <time.h>	111	#include <time.h>
68		112
69	#include <signal.h>	113	#include <signal.h>
70		114
71	#ifndef WIN32	115	#ifndef _WIN32
72	# include <unistd.h>	116	# include <unistd.h>
73	# include <sys/time.h>	117	# include <sys/time.h>
74	# include <sys/wait.h>	118	# include <sys/wait.h>
		119	#else
		120	# define WIN32_LEAN_AND_MEAN
		121	# include <windows.h>
		122	# ifndef EV_SELECT_IS_WINSOCKET
		123	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	124	# endif
		125	#endif
		126
76	/**/	127	/**/
77		128
78	#ifndef EV_USE_MONOTONIC	129	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	130	# define EV_USE_MONOTONIC 0
		131	#endif
		132
		133	#ifndef EV_USE_REALTIME
		134	# define EV_USE_REALTIME 0
80	#endif	135	#endif
81		136
82	#ifndef EV_USE_SELECT	137	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	138	# define EV_USE_SELECT 1
84	#endif	139	#endif
85		140
86	#ifndef EV_USE_POLL	141	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	142	# ifdef _WIN32
		143	# define EV_USE_POLL 0
		144	# else
		145	# define EV_USE_POLL 1
		146	# endif
88	#endif	147	#endif
89		148
90	#ifndef EV_USE_EPOLL	149	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	150	# define EV_USE_EPOLL 0
92	#endif	151	#endif
93		152
94	#ifndef EV_USE_KQUEUE	153	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	154	# define EV_USE_KQUEUE 0
96	#endif	155	#endif
97		156
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	157	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	158	# define EV_USE_PORT 0
110	#endif	159	#endif
111		160
112	/**/	161	/**/
113		162
114	#ifndef CLOCK_MONOTONIC	163	#ifndef CLOCK_MONOTONIC
…		…
119	#ifndef CLOCK_REALTIME	168	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	169	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	170	# define EV_USE_REALTIME 0
122	#endif	171	#endif
123		172
		173	#if EV_SELECT_IS_WINSOCKET
		174	# include <winsock.h>
		175	#endif
		176
124	/**/	177	/**/
125		178
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	179	#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) */	180	#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 */	181	#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 */	182	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		183
		184	#ifdef EV_H
		185	# include EV_H
		186	#else
131	#include "ev.h"	187	# include "ev.h"
		188	#endif
132		189
133	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	192	# define inline static inline
136	#else	193	#else
137	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
138	# define inline static	195	# define inline static
139	#endif	196	#endif
140		197
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
143		200
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
147	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
150		210
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		212
		213	#ifdef _WIN32
153	#include "ev_win32.c"	214	# include "ev_win32.c"
		215	#endif
154		216
155	/*****************************************************************************/	217	/*****************************************************************************/
156		218
157	static void (syserr_cb)(const char msg);	219	static void (syserr_cb)(const char msg);
158		220
…		…
205	typedef struct	267	typedef struct
206	{	268	{
207	WL head;	269	WL head;
208	unsigned char events;	270	unsigned char events;
209	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
210	} ANFD;	275	} ANFD;
211		276
212	typedef struct	277	typedef struct
213	{	278	{
214	W w;	279	W w;
…		…
217		282
218	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
219		284
220	struct ev_loop	285	struct ev_loop
221	{	286	{
		287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
222	#define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
223	#include "ev_vars.h"	290	#include "ev_vars.h"
224	#undef VAR	291	#undef VAR
225	};	292	};
226	#include "ev_wrap.h"	293	#include "ev_wrap.h"
227		294
228	struct ev_loop default_loop_struct;	295	static struct ev_loop default_loop_struct;
229	static struct ev_loop *default_loop;	296	struct ev_loop *ev_default_loop_ptr;
230		297
231	#else	298	#else
232		299
		300	ev_tstamp ev_rt_now;
233	#define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
234	#include "ev_vars.h"	302	#include "ev_vars.h"
235	#undef VAR	303	#undef VAR
236		304
237	static int default_loop;	305	static int ev_default_loop_ptr;
238		306
239	#endif	307	#endif
240		308
241	/*****************************************************************************/	309	/*****************************************************************************/
242		310
243	inline ev_tstamp	311	ev_tstamp
244	ev_time (void)	312	ev_time (void)
245	{	313	{
246	#if EV_USE_REALTIME	314	#if EV_USE_REALTIME
247	struct timespec ts;	315	struct timespec ts;
248	clock_gettime (CLOCK_REALTIME, &ts);	316	clock_gettime (CLOCK_REALTIME, &ts);
…		…
267	#endif	335	#endif
268		336
269	return ev_time ();	337	return ev_time ();
270	}	338	}
271		339
		340	#if EV_MULTIPLICITY
272	ev_tstamp	341	ev_tstamp
273	ev_now (EV_P)	342	ev_now (EV_P)
274	{	343	{
275	return rt_now;	344	return ev_rt_now;
276	}	345	}
		346	#endif
277		347
278	#define array_roundsize(type,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
279		349
280	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
281	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
282	{ \	352	{ \
283	int newcnt = cur; \	353	int newcnt = cur; \
…		…
298	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
299	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
300	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
301	}	371	}
302		372
303	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
304	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
305	#define array_free_microshit(stem) \
306	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
307
308	#define array_free(stem, idx) \	373	#define array_free(stem, idx) \
309	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	374	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
310		375
311	/*****************************************************************************/	376	/*****************************************************************************/
312		377
…		…
326	void	391	void
327	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
328	{	393	{
329	W w_ = (W)w;	394	W w_ = (W)w;
330		395
331	if (w_->pending)	396	if (expect_false (w_->pending))
332	{	397	{
333	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
334	return;	399	return;
335	}	400	}
336		401
		402	if (expect_false (!w_->cb))
		403	return;
		404
337	w_->pending = ++pendingcnt [ABSPRI (w_)];	405	w_->pending = ++pendingcnt [ABSPRI (w_)];
338	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));	406	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
339	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	407	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
340	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	408	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
341	}	409	}
342		410
343	static void	411	static void
…		…
370	fd_event (EV_A_ fd, revents);	438	fd_event (EV_A_ fd, revents);
371	}	439	}
372		440
373	/*****************************************************************************/	441	/*****************************************************************************/
374		442
375	static void	443	inline void
376	fd_reify (EV_P)	444	fd_reify (EV_P)
377	{	445	{
378	int i;	446	int i;
379		447
380	for (i = 0; i < fdchangecnt; ++i)	448	for (i = 0; i < fdchangecnt; ++i)
…		…
386	int events = 0;	454	int events = 0;
387		455
388	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	456	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
389	events \|= w->events;	457	events \|= w->events;
390		458
		459	#if EV_SELECT_IS_WINSOCKET
		460	if (events)
		461	{
		462	unsigned long argp;
		463	anfd->handle = _get_osfhandle (fd);
		464	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		465	}
		466	#endif
		467
391	anfd->reify = 0;	468	anfd->reify = 0;
392		469
393	method_modify (EV_A_ fd, anfd->events, events);	470	backend_modify (EV_A_ fd, anfd->events, events);
394	anfd->events = events;	471	anfd->events = events;
395	}	472	}
396		473
397	fdchangecnt = 0;	474	fdchangecnt = 0;
398	}	475	}
399		476
400	static void	477	static void
401	fd_change (EV_P_ int fd)	478	fd_change (EV_P_ int fd)
402	{	479	{
403	if (anfds [fd].reify)	480	if (expect_false (anfds [fd].reify))
404	return;	481	return;
405		482
406	anfds [fd].reify = 1;	483	anfds [fd].reify = 1;
407		484
408	++fdchangecnt;	485	++fdchangecnt;
409	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	486	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
410	fdchanges [fdchangecnt - 1] = fd;	487	fdchanges [fdchangecnt - 1] = fd;
411	}	488	}
412		489
413	static void	490	static void
414	fd_kill (EV_P_ int fd)	491	fd_kill (EV_P_ int fd)
…		…
420	ev_io_stop (EV_A_ w);	497	ev_io_stop (EV_A_ w);
421	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	498	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
422	}	499	}
423	}	500	}
424		501
425	static int	502	inline int
426	fd_valid (int fd)	503	fd_valid (int fd)
427	{	504	{
428	#ifdef WIN32	505	#ifdef _WIN32
429	return !!win32_get_osfhandle (fd);	506	return _get_osfhandle (fd) != -1;
430	#else	507	#else
431	return fcntl (fd, F_GETFD) != -1;	508	return fcntl (fd, F_GETFD) != -1;
432	#endif	509	#endif
433	}	510	}
434		511
…		…
456	fd_kill (EV_A_ fd);	533	fd_kill (EV_A_ fd);
457	return;	534	return;
458	}	535	}
459	}	536	}
460		537
461	/* usually called after fork if method needs to re-arm all fds from scratch */	538	/* usually called after fork if backend needs to re-arm all fds from scratch */
462	static void	539	static void
463	fd_rearm_all (EV_P)	540	fd_rearm_all (EV_P)
464	{	541	{
465	int fd;	542	int fd;
466		543
…		…
514		591
515	heap [k] = w;	592	heap [k] = w;
516	((W)heap [k])->active = k + 1;	593	((W)heap [k])->active = k + 1;
517	}	594	}
518		595
		596	inline void
		597	adjustheap (WT *heap, int N, int k)
		598	{
		599	upheap (heap, k);
		600	downheap (heap, N, k);
		601	}
		602
519	/*****************************************************************************/	603	/*****************************************************************************/
520		604
521	typedef struct	605	typedef struct
522	{	606	{
523	WL head;	607	WL head;
…		…
544	}	628	}
545		629
546	static void	630	static void
547	sighandler (int signum)	631	sighandler (int signum)
548	{	632	{
549	#if WIN32	633	#if _WIN32
550	signal (signum, sighandler);	634	signal (signum, sighandler);
551	#endif	635	#endif
552		636
553	signals [signum - 1].gotsig = 1;	637	signals [signum - 1].gotsig = 1;
554		638
555	if (!gotsig)	639	if (!gotsig)
556	{	640	{
557	int old_errno = errno;	641	int old_errno = errno;
558	gotsig = 1;	642	gotsig = 1;
559	#ifdef WIN32
560	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
561	#else
562	write (sigpipe [1], &signum, 1);	643	write (sigpipe [1], &signum, 1);
563	#endif
564	errno = old_errno;	644	errno = old_errno;
565	}	645	}
566	}	646	}
567		647
568	void	648	void
569	ev_feed_signal_event (EV_P_ int signum)	649	ev_feed_signal_event (EV_P_ int signum)
570	{	650	{
571	WL w;	651	WL w;
572		652
573	#if EV_MULTIPLICITY	653	#if EV_MULTIPLICITY
574	assert (("feeding signal events is only supported in the default loop", loop == default_loop));	654	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
575	#endif	655	#endif
576		656
577	--signum;	657	--signum;
578		658
579	if (signum < 0 \|\| signum >= signalmax)	659	if (signum < 0 \|\| signum >= signalmax)
…		…
588	static void	668	static void
589	sigcb (EV_P_ struct ev_io *iow, int revents)	669	sigcb (EV_P_ struct ev_io *iow, int revents)
590	{	670	{
591	int signum;	671	int signum;
592		672
593	#ifdef WIN32
594	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
595	#else
596	read (sigpipe [0], &revents, 1);	673	read (sigpipe [0], &revents, 1);
597	#endif
598	gotsig = 0;	674	gotsig = 0;
599		675
600	for (signum = signalmax; signum--; )	676	for (signum = signalmax; signum--; )
601	if (signals [signum].gotsig)	677	if (signals [signum].gotsig)
602	ev_feed_signal_event (EV_A_ signum + 1);	678	ev_feed_signal_event (EV_A_ signum + 1);
603	}	679	}
604		680
605	static void	681	static void
		682	fd_intern (int fd)
		683	{
		684	#ifdef _WIN32
		685	int arg = 1;
		686	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		687	#else
		688	fcntl (fd, F_SETFD, FD_CLOEXEC);
		689	fcntl (fd, F_SETFL, O_NONBLOCK);
		690	#endif
		691	}
		692
		693	static void
606	siginit (EV_P)	694	siginit (EV_P)
607	{	695	{
608	#ifndef WIN32	696	fd_intern (sigpipe [0]);
609	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	697	fd_intern (sigpipe [1]);
610	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
611
612	/* rather than sort out wether we really need nb, set it */
613	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
614	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
615	#endif
616		698
617	ev_io_set (&sigev, sigpipe [0], EV_READ);	699	ev_io_set (&sigev, sigpipe [0], EV_READ);
618	ev_io_start (EV_A_ &sigev);	700	ev_io_start (EV_A_ &sigev);
619	ev_unref (EV_A); /* child watcher should not keep loop alive */	701	ev_unref (EV_A); /* child watcher should not keep loop alive */
620	}	702	}
621		703
622	/*****************************************************************************/	704	/*****************************************************************************/
623		705
624	static struct ev_child *childs [PID_HASHSIZE];	706	static struct ev_child *childs [PID_HASHSIZE];
625		707
626	#ifndef WIN32	708	#ifndef _WIN32
627		709
628	static struct ev_signal childev;	710	static struct ev_signal childev;
629		711
630	#ifndef WCONTINUED	712	#ifndef WCONTINUED
631	# define WCONTINUED 0	713	# define WCONTINUED 0
…		…
652	int pid, status;	734	int pid, status;
653		735
654	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	736	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
655	{	737	{
656	/* make sure we are called again until all childs have been reaped */	738	/* make sure we are called again until all childs have been reaped */
		739	/* we need to do it this way so that the callback gets called before we continue */
657	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	740	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
658		741
659	child_reap (EV_A_ sw, pid, pid, status);	742	child_reap (EV_A_ sw, pid, pid, status);
660	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	743	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
661	}	744	}
662	}	745	}
663		746
664	#endif	747	#endif
665		748
666	/*****************************************************************************/	749	/*****************************************************************************/
667		750
		751	#if EV_USE_PORT
		752	# include "ev_port.c"
		753	#endif
668	#if EV_USE_KQUEUE	754	#if EV_USE_KQUEUE
669	# include "ev_kqueue.c"	755	# include "ev_kqueue.c"
670	#endif	756	#endif
671	#if EV_USE_EPOLL	757	#if EV_USE_EPOLL
672	# include "ev_epoll.c"	758	# include "ev_epoll.c"
…		…
692		778
693	/* return true if we are running with elevated privileges and should ignore env variables */	779	/* return true if we are running with elevated privileges and should ignore env variables */
694	static int	780	static int
695	enable_secure (void)	781	enable_secure (void)
696	{	782	{
697	#ifdef WIN32	783	#ifdef _WIN32
698	return 0;	784	return 0;
699	#else	785	#else
700	return getuid () != geteuid ()	786	return getuid () != geteuid ()
701	\|\| getgid () != getegid ();	787	\|\| getgid () != getegid ();
702	#endif	788	#endif
703	}	789	}
704		790
705	int	791	unsigned int
706	ev_method (EV_P)	792	ev_supported_backends (void)
707	{	793	{
708	return method;	794	unsigned int flags = 0;
709	}
710		795
711	static void	796	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
712	loop_init (EV_P_ int methods)	797	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		798	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		799	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		800	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		801
		802	return flags;
		803	}
		804
		805	unsigned int
		806	ev_recommended_backends (void)
713	{	807	{
714	if (!method)	808	unsigned int flags = ev_supported_backends ();
		809
		810	#ifndef __NetBSD__
		811	/* kqueue is borked on everything but netbsd apparently */
		812	/* it usually doesn't work correctly on anything but sockets and pipes */
		813	flags &= ~EVBACKEND_KQUEUE;
		814	#endif
		815	#ifdef __APPLE__
		816	// flags &= ~EVBACKEND_KQUEUE; for documentation
		817	flags &= ~EVBACKEND_POLL;
		818	#endif
		819
		820	return flags;
		821	}
		822
		823	unsigned int
		824	ev_embeddable_backends (void)
		825	{
		826	return EVBACKEND_EPOLL
		827	\| EVBACKEND_KQUEUE
		828	\| EVBACKEND_PORT;
		829	}
		830
		831	unsigned int
		832	ev_backend (EV_P)
		833	{
		834	return backend;
		835	}
		836
		837	static void
		838	loop_init (EV_P_ unsigned int flags)
		839	{
		840	if (!backend)
715	{	841	{
716	#if EV_USE_MONOTONIC	842	#if EV_USE_MONOTONIC
717	{	843	{
718	struct timespec ts;	844	struct timespec ts;
719	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	845	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
720	have_monotonic = 1;	846	have_monotonic = 1;
721	}	847	}
722	#endif	848	#endif
723		849
724	rt_now = ev_time ();	850	ev_rt_now = ev_time ();
725	mn_now = get_clock ();	851	mn_now = get_clock ();
726	now_floor = mn_now;	852	now_floor = mn_now;
727	rtmn_diff = rt_now - mn_now;	853	rtmn_diff = ev_rt_now - mn_now;
728		854
729	if (methods == EVMETHOD_AUTO)	855	if (!(flags & EVFLAG_NOENV)
730	if (!enable_secure () && getenv ("LIBEV_METHODS"))	856	&& !enable_secure ()
		857	&& getenv ("LIBEV_FLAGS"))
731	methods = atoi (getenv ("LIBEV_METHODS"));	858	flags = atoi (getenv ("LIBEV_FLAGS"));
732	else
733	methods = EVMETHOD_ANY;
734		859
735	method = 0;	860	if (!(flags & 0x0000ffffUL))
736	#if EV_USE_WIN32	861	flags \|= ev_recommended_backends ();
737	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	862
		863	backend = 0;
		864	#if EV_USE_PORT
		865	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
738	#endif	866	#endif
739	#if EV_USE_KQUEUE	867	#if EV_USE_KQUEUE
740	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
741	#endif	869	#endif
742	#if EV_USE_EPOLL	870	#if EV_USE_EPOLL
743	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
744	#endif	872	#endif
745	#if EV_USE_POLL	873	#if EV_USE_POLL
746	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
747	#endif	875	#endif
748	#if EV_USE_SELECT	876	#if EV_USE_SELECT
749	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	877	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
750	#endif	878	#endif
751		879
752	ev_watcher_init (&sigev, sigcb);	880	ev_init (&sigev, sigcb);
753	ev_set_priority (&sigev, EV_MAXPRI);	881	ev_set_priority (&sigev, EV_MAXPRI);
754	}	882	}
755	}	883	}
756		884
757	void	885	static void
758	loop_destroy (EV_P)	886	loop_destroy (EV_P)
759	{	887	{
760	int i;	888	int i;
761		889
762	#if EV_USE_WIN32	890	#if EV_USE_PORT
763	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	891	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
764	#endif	892	#endif
765	#if EV_USE_KQUEUE	893	#if EV_USE_KQUEUE
766	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	894	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
767	#endif	895	#endif
768	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
769	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	897	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
770	#endif	898	#endif
771	#if EV_USE_POLL	899	#if EV_USE_POLL
772	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	900	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
773	#endif	901	#endif
774	#if EV_USE_SELECT	902	#if EV_USE_SELECT
775	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	903	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
776	#endif	904	#endif
777		905
778	for (i = NUMPRI; i--; )	906	for (i = NUMPRI; i--; )
779	array_free (pending, [i]);	907	array_free (pending, [i]);
780		908
781	/* have to use the microsoft-never-gets-it-right macro */	909	/* have to use the microsoft-never-gets-it-right macro */
782	array_free_microshit (fdchange);	910	array_free (fdchange, EMPTY0);
783	array_free_microshit (timer);	911	array_free (timer, EMPTY0);
784	array_free_microshit (periodic);	912	#if EV_PERIODICS
785	array_free_microshit (idle);	913	array_free (periodic, EMPTY0);
786	array_free_microshit (prepare);	914	#endif
787	array_free_microshit (check);	915	array_free (idle, EMPTY0);
		916	array_free (prepare, EMPTY0);
		917	array_free (check, EMPTY0);
788		918
789	method = 0;	919	backend = 0;
790	}	920	}
791		921
792	static void	922	static void
793	loop_fork (EV_P)	923	loop_fork (EV_P)
794	{	924	{
		925	#if EV_USE_PORT
		926	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		927	#endif
		928	#if EV_USE_KQUEUE
		929	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		930	#endif
795	#if EV_USE_EPOLL	931	#if EV_USE_EPOLL
796	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	932	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
797	#endif
798	#if EV_USE_KQUEUE
799	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
800	#endif	933	#endif
801		934
802	if (ev_is_active (&sigev))	935	if (ev_is_active (&sigev))
803	{	936	{
804	/* default loop */	937	/* default loop */
…		…
817	postfork = 0;	950	postfork = 0;
818	}	951	}
819		952
820	#if EV_MULTIPLICITY	953	#if EV_MULTIPLICITY
821	struct ev_loop *	954	struct ev_loop *
822	ev_loop_new (int methods)	955	ev_loop_new (unsigned int flags)
823	{	956	{
824	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	957	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
825		958
826	memset (loop, 0, sizeof (struct ev_loop));	959	memset (loop, 0, sizeof (struct ev_loop));
827		960
828	loop_init (EV_A_ methods);	961	loop_init (EV_A_ flags);
829		962
830	if (ev_method (EV_A))	963	if (ev_backend (EV_A))
831	return loop;	964	return loop;
832		965
833	return 0;	966	return 0;
834	}	967	}
835		968
…		…
848		981
849	#endif	982	#endif
850		983
851	#if EV_MULTIPLICITY	984	#if EV_MULTIPLICITY
852	struct ev_loop *	985	struct ev_loop *
		986	ev_default_loop_init (unsigned int flags)
853	#else	987	#else
854	int	988	int
		989	ev_default_loop (unsigned int flags)
855	#endif	990	#endif
856	ev_default_loop (int methods)
857	{	991	{
858	if (sigpipe [0] == sigpipe [1])	992	if (sigpipe [0] == sigpipe [1])
859	if (pipe (sigpipe))	993	if (pipe (sigpipe))
860	return 0;	994	return 0;
861		995
862	if (!default_loop)	996	if (!ev_default_loop_ptr)
863	{	997	{
864	#if EV_MULTIPLICITY	998	#if EV_MULTIPLICITY
865	struct ev_loop *loop = default_loop = &default_loop_struct;	999	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
866	#else	1000	#else
867	default_loop = 1;	1001	ev_default_loop_ptr = 1;
868	#endif	1002	#endif
869		1003
870	loop_init (EV_A_ methods);	1004	loop_init (EV_A_ flags);
871		1005
872	if (ev_method (EV_A))	1006	if (ev_backend (EV_A))
873	{	1007	{
874	siginit (EV_A);	1008	siginit (EV_A);
875		1009
876	#ifndef WIN32	1010	#ifndef _WIN32
877	ev_signal_init (&childev, childcb, SIGCHLD);	1011	ev_signal_init (&childev, childcb, SIGCHLD);
878	ev_set_priority (&childev, EV_MAXPRI);	1012	ev_set_priority (&childev, EV_MAXPRI);
879	ev_signal_start (EV_A_ &childev);	1013	ev_signal_start (EV_A_ &childev);
880	ev_unref (EV_A); /* child watcher should not keep loop alive */	1014	ev_unref (EV_A); /* child watcher should not keep loop alive */
881	#endif	1015	#endif
882	}	1016	}
883	else	1017	else
884	default_loop = 0;	1018	ev_default_loop_ptr = 0;
885	}	1019	}
886		1020
887	return default_loop;	1021	return ev_default_loop_ptr;
888	}	1022	}
889		1023
890	void	1024	void
891	ev_default_destroy (void)	1025	ev_default_destroy (void)
892	{	1026	{
893	#if EV_MULTIPLICITY	1027	#if EV_MULTIPLICITY
894	struct ev_loop *loop = default_loop;	1028	struct ev_loop *loop = ev_default_loop_ptr;
895	#endif	1029	#endif
896		1030
897	#ifndef WIN32	1031	#ifndef _WIN32
898	ev_ref (EV_A); /* child watcher */	1032	ev_ref (EV_A); /* child watcher */
899	ev_signal_stop (EV_A_ &childev);	1033	ev_signal_stop (EV_A_ &childev);
900	#endif	1034	#endif
901		1035
902	ev_ref (EV_A); /* signal watcher */	1036	ev_ref (EV_A); /* signal watcher */
…		…
910		1044
911	void	1045	void
912	ev_default_fork (void)	1046	ev_default_fork (void)
913	{	1047	{
914	#if EV_MULTIPLICITY	1048	#if EV_MULTIPLICITY
915	struct ev_loop *loop = default_loop;	1049	struct ev_loop *loop = ev_default_loop_ptr;
916	#endif	1050	#endif
917		1051
918	if (method)	1052	if (backend)
919	postfork = 1;	1053	postfork = 1;
920	}	1054	}
921		1055
922	/*****************************************************************************/	1056	/*****************************************************************************/
923		1057
…		…
931	return 1;	1065	return 1;
932		1066
933	return 0;	1067	return 0;
934	}	1068	}
935		1069
936	static void	1070	inline void
937	call_pending (EV_P)	1071	call_pending (EV_P)
938	{	1072	{
939	int pri;	1073	int pri;
940		1074
941	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
942	while (pendingcnt [pri])	1076	while (pendingcnt [pri])
943	{	1077	{
944	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1078	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
945		1079
946	if (p->w)	1080	if (expect_true (p->w))
947	{	1081	{
948	p->w->pending = 0;	1082	p->w->pending = 0;
949	p->w->cb (EV_A_ p->w, p->events);	1083	EV_CB_INVOKE (p->w, p->events);
950	}	1084	}
951	}	1085	}
952	}	1086	}
953		1087
954	static void	1088	inline void
955	timers_reify (EV_P)	1089	timers_reify (EV_P)
956	{	1090	{
957	while (timercnt && ((WT)timers [0])->at <= mn_now)	1091	while (timercnt && ((WT)timers [0])->at <= mn_now)
958	{	1092	{
959	struct ev_timer *w = timers [0];	1093	struct ev_timer *w = timers [0];
…		…
962		1096
963	/* first reschedule or stop timer */	1097	/* first reschedule or stop timer */
964	if (w->repeat)	1098	if (w->repeat)
965	{	1099	{
966	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1100	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1101
967	((WT)w)->at = mn_now + w->repeat;	1102	((WT)w)->at += w->repeat;
		1103	if (((WT)w)->at < mn_now)
		1104	((WT)w)->at = mn_now;
		1105
968	downheap ((WT *)timers, timercnt, 0);	1106	downheap ((WT *)timers, timercnt, 0);
969	}	1107	}
970	else	1108	else
971	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1109	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
972		1110
973	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1111	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
974	}	1112	}
975	}	1113	}
976		1114
977	static void	1115	#if EV_PERIODICS
		1116	inline void
978	periodics_reify (EV_P)	1117	periodics_reify (EV_P)
979	{	1118	{
980	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1119	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
981	{	1120	{
982	struct ev_periodic *w = periodics [0];	1121	struct ev_periodic *w = periodics [0];
983		1122
984	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1123	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
985		1124
986	/* first reschedule or stop timer */	1125	/* first reschedule or stop timer */
987	if (w->reschedule_cb)	1126	if (w->reschedule_cb)
988	{	1127	{
989	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001);	1128	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
990
991	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now));	1129	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
992	downheap ((WT *)periodics, periodiccnt, 0);	1130	downheap ((WT *)periodics, periodiccnt, 0);
993	}	1131	}
994	else if (w->interval)	1132	else if (w->interval)
995	{	1133	{
996	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1134	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
997	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1135	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
998	downheap ((WT *)periodics, periodiccnt, 0);	1136	downheap ((WT *)periodics, periodiccnt, 0);
999	}	1137	}
1000	else	1138	else
1001	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1139	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1002		1140
…		…
1013	for (i = 0; i < periodiccnt; ++i)	1151	for (i = 0; i < periodiccnt; ++i)
1014	{	1152	{
1015	struct ev_periodic *w = periodics [i];	1153	struct ev_periodic *w = periodics [i];
1016		1154
1017	if (w->reschedule_cb)	1155	if (w->reschedule_cb)
1018	((WT)w)->at = w->reschedule_cb (w, rt_now);	1156	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1019	else if (w->interval)	1157	else if (w->interval)
1020	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1158	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1021	}	1159	}
1022		1160
1023	/* now rebuild the heap */	1161	/* now rebuild the heap */
1024	for (i = periodiccnt >> 1; i--; )	1162	for (i = periodiccnt >> 1; i--; )
1025	downheap ((WT *)periodics, periodiccnt, i);	1163	downheap ((WT *)periodics, periodiccnt, i);
1026	}	1164	}
		1165	#endif
1027		1166
1028	inline int	1167	inline int
1029	time_update_monotonic (EV_P)	1168	time_update_monotonic (EV_P)
1030	{	1169	{
1031	mn_now = get_clock ();	1170	mn_now = get_clock ();
1032		1171
1033	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1172	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1034	{	1173	{
1035	rt_now = rtmn_diff + mn_now;	1174	ev_rt_now = rtmn_diff + mn_now;
1036	return 0;	1175	return 0;
1037	}	1176	}
1038	else	1177	else
1039	{	1178	{
1040	now_floor = mn_now;	1179	now_floor = mn_now;
1041	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
1042	return 1;	1181	return 1;
1043	}	1182	}
1044	}	1183	}
1045		1184
1046	static void	1185	inline void
1047	time_update (EV_P)	1186	time_update (EV_P)
1048	{	1187	{
1049	int i;	1188	int i;
1050		1189
1051	#if EV_USE_MONOTONIC	1190	#if EV_USE_MONOTONIC
…		…
1055	{	1194	{
1056	ev_tstamp odiff = rtmn_diff;	1195	ev_tstamp odiff = rtmn_diff;
1057		1196
1058	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1197	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1059	{	1198	{
1060	rtmn_diff = rt_now - mn_now;	1199	rtmn_diff = ev_rt_now - mn_now;
1061		1200
1062	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1201	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1063	return; /* all is well */	1202	return; /* all is well */
1064		1203
1065	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
1066	mn_now = get_clock ();	1205	mn_now = get_clock ();
1067	now_floor = mn_now;	1206	now_floor = mn_now;
1068	}	1207	}
1069		1208
		1209	# if EV_PERIODICS
1070	periodics_reschedule (EV_A);	1210	periodics_reschedule (EV_A);
		1211	# endif
1071	/* no timer adjustment, as the monotonic clock doesn't jump */	1212	/* no timer adjustment, as the monotonic clock doesn't jump */
1072	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1213	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1073	}	1214	}
1074	}	1215	}
1075	else	1216	else
1076	#endif	1217	#endif
1077	{	1218	{
1078	rt_now = ev_time ();	1219	ev_rt_now = ev_time ();
1079		1220
1080	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1221	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1081	{	1222	{
		1223	#if EV_PERIODICS
1082	periodics_reschedule (EV_A);	1224	periodics_reschedule (EV_A);
		1225	#endif
1083		1226
1084	/* adjust timers. this is easy, as the offset is the same for all */	1227	/* adjust timers. this is easy, as the offset is the same for all */
1085	for (i = 0; i < timercnt; ++i)	1228	for (i = 0; i < timercnt; ++i)
1086	((WT)timers [i])->at += rt_now - mn_now;	1229	((WT)timers [i])->at += ev_rt_now - mn_now;
1087	}	1230	}
1088		1231
1089	mn_now = rt_now;	1232	mn_now = ev_rt_now;
1090	}	1233	}
1091	}	1234	}
1092		1235
1093	void	1236	void
1094	ev_ref (EV_P)	1237	ev_ref (EV_P)
…		…
1105	static int loop_done;	1248	static int loop_done;
1106		1249
1107	void	1250	void
1108	ev_loop (EV_P_ int flags)	1251	ev_loop (EV_P_ int flags)
1109	{	1252	{
1110	double block;
1111	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1253	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1254	? EVUNLOOP_ONE
		1255	: EVUNLOOP_CANCEL;
1112		1256
1113	do	1257	while (activecnt)
1114	{	1258	{
1115	/* queue check watchers (and execute them) */	1259	/* queue check watchers (and execute them) */
1116	if (expect_false (preparecnt))	1260	if (expect_false (preparecnt))
1117	{	1261	{
1118	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1262	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1125		1269
1126	/* update fd-related kernel structures */	1270	/* update fd-related kernel structures */
1127	fd_reify (EV_A);	1271	fd_reify (EV_A);
1128		1272
1129	/* calculate blocking time */	1273	/* calculate blocking time */
		1274	{
		1275	double block;
1130		1276
1131	/* we only need this for !monotonic clock or timers, but as we basically	1277	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1132	always have timers, we just calculate it always */	1278	block = 0.; /* do not block at all */
		1279	else
		1280	{
		1281	/* update time to cancel out callback processing overhead */
1133	#if EV_USE_MONOTONIC	1282	#if EV_USE_MONOTONIC
1134	if (expect_true (have_monotonic))	1283	if (expect_true (have_monotonic))
1135	time_update_monotonic (EV_A);	1284	time_update_monotonic (EV_A);
1136	else	1285	else
1137	#endif	1286	#endif
1138	{	1287	{
1139	rt_now = ev_time ();	1288	ev_rt_now = ev_time ();
1140	mn_now = rt_now;	1289	mn_now = ev_rt_now;
1141	}	1290	}
1142		1291
1143	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1144	block = 0.;
1145	else
1146	{
1147	block = MAX_BLOCKTIME;	1292	block = MAX_BLOCKTIME;
1148		1293
1149	if (timercnt)	1294	if (timercnt)
1150	{	1295	{
1151	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1296	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1152	if (block > to) block = to;	1297	if (block > to) block = to;
1153	}	1298	}
1154		1299
		1300	#if EV_PERIODICS
1155	if (periodiccnt)	1301	if (periodiccnt)
1156	{	1302	{
1157	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1303	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1158	if (block > to) block = to;	1304	if (block > to) block = to;
1159	}	1305	}
		1306	#endif
1160		1307
1161	if (block < 0.) block = 0.;	1308	if (expect_false (block < 0.)) block = 0.;
1162	}	1309	}
1163		1310
1164	method_poll (EV_A_ block);	1311	backend_poll (EV_A_ block);
		1312	}
1165		1313
1166	/* update rt_now, do magic */	1314	/* update ev_rt_now, do magic */
1167	time_update (EV_A);	1315	time_update (EV_A);
1168		1316
1169	/* queue pending timers and reschedule them */	1317	/* queue pending timers and reschedule them */
1170	timers_reify (EV_A); /* relative timers called last */	1318	timers_reify (EV_A); /* relative timers called last */
		1319	#if EV_PERIODICS
1171	periodics_reify (EV_A); /* absolute timers called first */	1320	periodics_reify (EV_A); /* absolute timers called first */
		1321	#endif
1172		1322
1173	/* queue idle watchers unless io or timers are pending */	1323	/* queue idle watchers unless io or timers are pending */
1174	if (idlecnt && !any_pending (EV_A))	1324	if (idlecnt && !any_pending (EV_A))
1175	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1325	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1176		1326
1177	/* queue check watchers, to be executed first */	1327	/* queue check watchers, to be executed first */
1178	if (checkcnt)	1328	if (expect_false (checkcnt))
1179	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1329	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1180		1330
1181	call_pending (EV_A);	1331	call_pending (EV_A);
1182	}
1183	while (activecnt && !loop_done);
1184		1332
1185	if (loop_done != 2)	1333	if (expect_false (loop_done))
1186	loop_done = 0;	1334	break;
		1335	}
		1336
		1337	if (loop_done == EVUNLOOP_ONE)
		1338	loop_done = EVUNLOOP_CANCEL;
1187	}	1339	}
1188		1340
1189	void	1341	void
1190	ev_unloop (EV_P_ int how)	1342	ev_unloop (EV_P_ int how)
1191	{	1343	{
…		…
1248	void	1400	void
1249	ev_io_start (EV_P_ struct ev_io *w)	1401	ev_io_start (EV_P_ struct ev_io *w)
1250	{	1402	{
1251	int fd = w->fd;	1403	int fd = w->fd;
1252		1404
1253	if (ev_is_active (w))	1405	if (expect_false (ev_is_active (w)))
1254	return;	1406	return;
1255		1407
1256	assert (("ev_io_start called with negative fd", fd >= 0));	1408	assert (("ev_io_start called with negative fd", fd >= 0));
1257		1409
1258	ev_start (EV_A_ (W)w, 1);	1410	ev_start (EV_A_ (W)w, 1);
…		…
1264		1416
1265	void	1417	void
1266	ev_io_stop (EV_P_ struct ev_io *w)	1418	ev_io_stop (EV_P_ struct ev_io *w)
1267	{	1419	{
1268	ev_clear_pending (EV_A_ (W)w);	1420	ev_clear_pending (EV_A_ (W)w);
1269	if (!ev_is_active (w))	1421	if (expect_false (!ev_is_active (w)))
1270	return;	1422	return;
		1423
		1424	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1271		1425
1272	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1426	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1273	ev_stop (EV_A_ (W)w);	1427	ev_stop (EV_A_ (W)w);
1274		1428
1275	fd_change (EV_A_ w->fd);	1429	fd_change (EV_A_ w->fd);
1276	}	1430	}
1277		1431
1278	void	1432	void
1279	ev_timer_start (EV_P_ struct ev_timer *w)	1433	ev_timer_start (EV_P_ struct ev_timer *w)
1280	{	1434	{
1281	if (ev_is_active (w))	1435	if (expect_false (ev_is_active (w)))
1282	return;	1436	return;
1283		1437
1284	((WT)w)->at += mn_now;	1438	((WT)w)->at += mn_now;
1285		1439
1286	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1440	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1287		1441
1288	ev_start (EV_A_ (W)w, ++timercnt);	1442	ev_start (EV_A_ (W)w, ++timercnt);
1289	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1443	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1290	timers [timercnt - 1] = w;	1444	timers [timercnt - 1] = w;
1291	upheap ((WT *)timers, timercnt - 1);	1445	upheap ((WT *)timers, timercnt - 1);
1292		1446
1293	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1447	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1294	}	1448	}
1295		1449
1296	void	1450	void
1297	ev_timer_stop (EV_P_ struct ev_timer *w)	1451	ev_timer_stop (EV_P_ struct ev_timer *w)
1298	{	1452	{
1299	ev_clear_pending (EV_A_ (W)w);	1453	ev_clear_pending (EV_A_ (W)w);
1300	if (!ev_is_active (w))	1454	if (expect_false (!ev_is_active (w)))
1301	return;	1455	return;
1302		1456
1303	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1457	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1304		1458
1305	if (((W)w)->active < timercnt--)	1459	if (expect_true (((W)w)->active < timercnt--))
1306	{	1460	{
1307	timers [((W)w)->active - 1] = timers [timercnt];	1461	timers [((W)w)->active - 1] = timers [timercnt];
1308	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1462	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1309	}	1463	}
1310		1464
1311	((WT)w)->at = w->repeat;	1465	((WT)w)->at -= mn_now;
1312		1466
1313	ev_stop (EV_A_ (W)w);	1467	ev_stop (EV_A_ (W)w);
1314	}	1468	}
1315		1469
1316	void	1470	void
…		…
1319	if (ev_is_active (w))	1473	if (ev_is_active (w))
1320	{	1474	{
1321	if (w->repeat)	1475	if (w->repeat)
1322	{	1476	{
1323	((WT)w)->at = mn_now + w->repeat;	1477	((WT)w)->at = mn_now + w->repeat;
1324	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1478	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1325	}	1479	}
1326	else	1480	else
1327	ev_timer_stop (EV_A_ w);	1481	ev_timer_stop (EV_A_ w);
1328	}	1482	}
1329	else if (w->repeat)	1483	else if (w->repeat)
		1484	{
		1485	w->at = w->repeat;
1330	ev_timer_start (EV_A_ w);	1486	ev_timer_start (EV_A_ w);
		1487	}
1331	}	1488	}
1332		1489
		1490	#if EV_PERIODICS
1333	void	1491	void
1334	ev_periodic_start (EV_P_ struct ev_periodic *w)	1492	ev_periodic_start (EV_P_ struct ev_periodic *w)
1335	{	1493	{
1336	if (ev_is_active (w))	1494	if (expect_false (ev_is_active (w)))
1337	return;	1495	return;
1338		1496
1339	if (w->reschedule_cb)	1497	if (w->reschedule_cb)
1340	((WT)w)->at = w->reschedule_cb (w, rt_now);	1498	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1341	else if (w->interval)	1499	else if (w->interval)
1342	{	1500	{
1343	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1501	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1344	/* this formula differs from the one in periodic_reify because we do not always round up */	1502	/* this formula differs from the one in periodic_reify because we do not always round up */
1345	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1503	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
1346	}	1504	}
1347		1505
1348	ev_start (EV_A_ (W)w, ++periodiccnt);	1506	ev_start (EV_A_ (W)w, ++periodiccnt);
1349	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1507	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1350	periodics [periodiccnt - 1] = w;	1508	periodics [periodiccnt - 1] = w;
1351	upheap ((WT *)periodics, periodiccnt - 1);	1509	upheap ((WT *)periodics, periodiccnt - 1);
1352		1510
1353	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1511	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1354	}	1512	}
1355		1513
1356	void	1514	void
1357	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1515	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1358	{	1516	{
1359	ev_clear_pending (EV_A_ (W)w);	1517	ev_clear_pending (EV_A_ (W)w);
1360	if (!ev_is_active (w))	1518	if (expect_false (!ev_is_active (w)))
1361	return;	1519	return;
1362		1520
1363	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1521	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1364		1522
1365	if (((W)w)->active < periodiccnt--)	1523	if (expect_true (((W)w)->active < periodiccnt--))
1366	{	1524	{
1367	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1525	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1368	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1526	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1369	}	1527	}
1370		1528
1371	ev_stop (EV_A_ (W)w);	1529	ev_stop (EV_A_ (W)w);
1372	}	1530	}
1373		1531
1374	void	1532	void
1375	ev_periodic_again (EV_P_ struct ev_periodic *w)	1533	ev_periodic_again (EV_P_ struct ev_periodic *w)
1376	{	1534	{
		1535	/* TODO: use adjustheap and recalculation */
1377	ev_periodic_stop (EV_A_ w);	1536	ev_periodic_stop (EV_A_ w);
1378	ev_periodic_start (EV_A_ w);	1537	ev_periodic_start (EV_A_ w);
1379	}	1538	}
		1539	#endif
1380		1540
1381	void	1541	void
1382	ev_idle_start (EV_P_ struct ev_idle *w)	1542	ev_idle_start (EV_P_ struct ev_idle *w)
1383	{	1543	{
1384	if (ev_is_active (w))	1544	if (expect_false (ev_is_active (w)))
1385	return;	1545	return;
1386		1546
1387	ev_start (EV_A_ (W)w, ++idlecnt);	1547	ev_start (EV_A_ (W)w, ++idlecnt);
1388	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1548	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1389	idles [idlecnt - 1] = w;	1549	idles [idlecnt - 1] = w;
1390	}	1550	}
1391		1551
1392	void	1552	void
1393	ev_idle_stop (EV_P_ struct ev_idle *w)	1553	ev_idle_stop (EV_P_ struct ev_idle *w)
1394	{	1554	{
1395	ev_clear_pending (EV_A_ (W)w);	1555	ev_clear_pending (EV_A_ (W)w);
1396	if (ev_is_active (w))	1556	if (expect_false (!ev_is_active (w)))
1397	return;	1557	return;
1398		1558
1399	idles [((W)w)->active - 1] = idles [--idlecnt];	1559	idles [((W)w)->active - 1] = idles [--idlecnt];
1400	ev_stop (EV_A_ (W)w);	1560	ev_stop (EV_A_ (W)w);
1401	}	1561	}
1402		1562
1403	void	1563	void
1404	ev_prepare_start (EV_P_ struct ev_prepare *w)	1564	ev_prepare_start (EV_P_ struct ev_prepare *w)
1405	{	1565	{
1406	if (ev_is_active (w))	1566	if (expect_false (ev_is_active (w)))
1407	return;	1567	return;
1408		1568
1409	ev_start (EV_A_ (W)w, ++preparecnt);	1569	ev_start (EV_A_ (W)w, ++preparecnt);
1410	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1570	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1411	prepares [preparecnt - 1] = w;	1571	prepares [preparecnt - 1] = w;
1412	}	1572	}
1413		1573
1414	void	1574	void
1415	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1575	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1416	{	1576	{
1417	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1418	if (ev_is_active (w))	1578	if (expect_false (!ev_is_active (w)))
1419	return;	1579	return;
1420		1580
1421	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1581	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1422	ev_stop (EV_A_ (W)w);	1582	ev_stop (EV_A_ (W)w);
1423	}	1583	}
1424		1584
1425	void	1585	void
1426	ev_check_start (EV_P_ struct ev_check *w)	1586	ev_check_start (EV_P_ struct ev_check *w)
1427	{	1587	{
1428	if (ev_is_active (w))	1588	if (expect_false (ev_is_active (w)))
1429	return;	1589	return;
1430		1590
1431	ev_start (EV_A_ (W)w, ++checkcnt);	1591	ev_start (EV_A_ (W)w, ++checkcnt);
1432	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1592	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1433	checks [checkcnt - 1] = w;	1593	checks [checkcnt - 1] = w;
1434	}	1594	}
1435		1595
1436	void	1596	void
1437	ev_check_stop (EV_P_ struct ev_check *w)	1597	ev_check_stop (EV_P_ struct ev_check *w)
1438	{	1598	{
1439	ev_clear_pending (EV_A_ (W)w);	1599	ev_clear_pending (EV_A_ (W)w);
1440	if (ev_is_active (w))	1600	if (expect_false (!ev_is_active (w)))
1441	return;	1601	return;
1442		1602
1443	checks [((W)w)->active - 1] = checks [--checkcnt];	1603	checks [((W)w)->active - 1] = checks [--checkcnt];
1444	ev_stop (EV_A_ (W)w);	1604	ev_stop (EV_A_ (W)w);
1445	}	1605	}
…		…
1450		1610
1451	void	1611	void
1452	ev_signal_start (EV_P_ struct ev_signal *w)	1612	ev_signal_start (EV_P_ struct ev_signal *w)
1453	{	1613	{
1454	#if EV_MULTIPLICITY	1614	#if EV_MULTIPLICITY
1455	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1615	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1456	#endif	1616	#endif
1457	if (ev_is_active (w))	1617	if (expect_false (ev_is_active (w)))
1458	return;	1618	return;
1459		1619
1460	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1620	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1461		1621
1462	ev_start (EV_A_ (W)w, 1);	1622	ev_start (EV_A_ (W)w, 1);
1463	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1623	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1464	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1624	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1465		1625
1466	if (!((WL)w)->next)	1626	if (!((WL)w)->next)
1467	{	1627	{
1468	#if WIN32	1628	#if _WIN32
1469	signal (w->signum, sighandler);	1629	signal (w->signum, sighandler);
1470	#else	1630	#else
1471	struct sigaction sa;	1631	struct sigaction sa;
1472	sa.sa_handler = sighandler;	1632	sa.sa_handler = sighandler;
1473	sigfillset (&sa.sa_mask);	1633	sigfillset (&sa.sa_mask);
…		…
1479		1639
1480	void	1640	void
1481	ev_signal_stop (EV_P_ struct ev_signal *w)	1641	ev_signal_stop (EV_P_ struct ev_signal *w)
1482	{	1642	{
1483	ev_clear_pending (EV_A_ (W)w);	1643	ev_clear_pending (EV_A_ (W)w);
1484	if (!ev_is_active (w))	1644	if (expect_false (!ev_is_active (w)))
1485	return;	1645	return;
1486		1646
1487	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1647	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1488	ev_stop (EV_A_ (W)w);	1648	ev_stop (EV_A_ (W)w);
1489		1649
…		…
1493		1653
1494	void	1654	void
1495	ev_child_start (EV_P_ struct ev_child *w)	1655	ev_child_start (EV_P_ struct ev_child *w)
1496	{	1656	{
1497	#if EV_MULTIPLICITY	1657	#if EV_MULTIPLICITY
1498	assert (("child watchers are only supported in the default loop", loop == default_loop));	1658	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1499	#endif	1659	#endif
1500	if (ev_is_active (w))	1660	if (expect_false (ev_is_active (w)))
1501	return;	1661	return;
1502		1662
1503	ev_start (EV_A_ (W)w, 1);	1663	ev_start (EV_A_ (W)w, 1);
1504	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1664	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1505	}	1665	}
1506		1666
1507	void	1667	void
1508	ev_child_stop (EV_P_ struct ev_child *w)	1668	ev_child_stop (EV_P_ struct ev_child *w)
1509	{	1669	{
1510	ev_clear_pending (EV_A_ (W)w);	1670	ev_clear_pending (EV_A_ (W)w);
1511	if (ev_is_active (w))	1671	if (expect_false (!ev_is_active (w)))
1512	return;	1672	return;
1513		1673
1514	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1674	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1515	ev_stop (EV_A_ (W)w);	1675	ev_stop (EV_A_ (W)w);
1516	}	1676	}
		1677
		1678	#if EV_MULTIPLICITY
		1679	static void
		1680	embed_cb (EV_P_ struct ev_io *io, int revents)
		1681	{
		1682	struct ev_embed w = (struct ev_embed )(((char *)io) - offsetof (struct ev_embed, io));
		1683
		1684	ev_feed_event (EV_A_ (W)w, EV_EMBED);
		1685	ev_loop (w->loop, EVLOOP_NONBLOCK);
		1686	}
		1687
		1688	void
		1689	ev_embed_start (EV_P_ struct ev_embed *w)
		1690	{
		1691	if (expect_false (ev_is_active (w)))
		1692	return;
		1693
		1694	{
		1695	struct ev_loop *loop = w->loop;
		1696	assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
		1697	ev_io_init (&w->io, embed_cb, backend_fd, EV_READ);
		1698	}
		1699
		1700	ev_io_start (EV_A_ &w->io);
		1701	ev_start (EV_A_ (W)w, 1);
		1702	}
		1703
		1704	void
		1705	ev_embed_stop (EV_P_ struct ev_embed *w)
		1706	{
		1707	ev_clear_pending (EV_A_ (W)w);
		1708	if (expect_false (!ev_is_active (w)))
		1709	return;
		1710
		1711	ev_io_stop (EV_A_ &w->io);
		1712	ev_stop (EV_A_ (W)w);
		1713	}
		1714	#endif
1517		1715
1518	/*****************************************************************************/	1716	/*****************************************************************************/
1519		1717
1520	struct ev_once	1718	struct ev_once
1521	{	1719	{
…		…
1553	void	1751	void
1554	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1752	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1555	{	1753	{
1556	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));	1754	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1557		1755
1558	if (!once)	1756	if (expect_false (!once))
		1757	{
1559	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1758	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1560	else	1759	return;
1561	{	1760	}
		1761
1562	once->cb = cb;	1762	once->cb = cb;
1563	once->arg = arg;	1763	once->arg = arg;
1564		1764
1565	ev_watcher_init (&once->io, once_cb_io);	1765	ev_init (&once->io, once_cb_io);
1566	if (fd >= 0)	1766	if (fd >= 0)
1567	{	1767	{
1568	ev_io_set (&once->io, fd, events);	1768	ev_io_set (&once->io, fd, events);
1569	ev_io_start (EV_A_ &once->io);	1769	ev_io_start (EV_A_ &once->io);
1570	}	1770	}
1571		1771
1572	ev_watcher_init (&once->to, once_cb_to);	1772	ev_init (&once->to, once_cb_to);
1573	if (timeout >= 0.)	1773	if (timeout >= 0.)
1574	{	1774	{
1575	ev_timer_set (&once->to, timeout, 0.);	1775	ev_timer_set (&once->to, timeout, 0.);
1576	ev_timer_start (EV_A_ &once->to);	1776	ev_timer_start (EV_A_ &once->to);
1577	}
1578	}	1777	}
1579	}	1778	}
1580		1779
		1780	#ifdef __cplusplus
		1781	}
		1782	#endif
		1783

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Comparing libev/ev.c (file contents): Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC vs. Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.80 by root, Fri Nov 9 15:30:59 2007 UTC vs.
Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC