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

Comparing libev/ev.c (file contents):
Revision 1.81 by root, Fri Nov 9 17:07:59 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
131	#ifdef EV_H	184	#ifdef EV_H
132	# include EV_H	185	# include EV_H
133	#else	186	#else
134	# include "ev.h"	187	# include "ev.h"
135	#endif	188	#endif
136		189
137	#if __GNUC__ >= 3	190	#if __GNUC__ >= 3
138	# define expect(expr,value) __builtin_expect ((expr),(value))	191	# define expect(expr,value) __builtin_expect ((expr),(value))
139	# define inline inline	192	# define inline static inline
140	#else	193	#else
141	# define expect(expr,value) (expr)	194	# define expect(expr,value) (expr)
142	# define inline static	195	# define inline static
143	#endif	196	#endif
144		197
…		…
146	#define expect_true(expr) expect ((expr) != 0, 1)	199	#define expect_true(expr) expect ((expr) != 0, 1)
147		200
148	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	201	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
149	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	202	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
150		203
		204	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		205	#define EMPTY2(a,b) /* used to suppress some warnings */
		206
151	typedef struct ev_watcher *W;	207	typedef struct ev_watcher *W;
152	typedef struct ev_watcher_list *WL;	208	typedef struct ev_watcher_list *WL;
153	typedef struct ev_watcher_time *WT;	209	typedef struct ev_watcher_time *WT;
154		210
155	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	211	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
156		212
		213	#ifdef _WIN32
157	#include "ev_win32.c"	214	# include "ev_win32.c"
		215	#endif
158		216
159	/*****************************************************************************/	217	/*****************************************************************************/
160		218
161	static void (syserr_cb)(const char msg);	219	static void (syserr_cb)(const char msg);
162		220
…		…
209	typedef struct	267	typedef struct
210	{	268	{
211	WL head;	269	WL head;
212	unsigned char events;	270	unsigned char events;
213	unsigned char reify;	271	unsigned char reify;
		272	#if EV_SELECT_IS_WINSOCKET
		273	SOCKET handle;
		274	#endif
214	} ANFD;	275	} ANFD;
215		276
216	typedef struct	277	typedef struct
217	{	278	{
218	W w;	279	W w;
…		…
221		282
222	#if EV_MULTIPLICITY	283	#if EV_MULTIPLICITY
223		284
224	struct ev_loop	285	struct ev_loop
225	{	286	{
		287	ev_tstamp ev_rt_now;
		288	#define ev_rt_now ((loop)->ev_rt_now)
226	#define VAR(name,decl) decl;	289	#define VAR(name,decl) decl;
227	#include "ev_vars.h"	290	#include "ev_vars.h"
228	#undef VAR	291	#undef VAR
229	};	292	};
230	#include "ev_wrap.h"	293	#include "ev_wrap.h"
231		294
232	struct ev_loop default_loop_struct;	295	static struct ev_loop default_loop_struct;
233	static struct ev_loop *default_loop;	296	struct ev_loop *ev_default_loop_ptr;
234		297
235	#else	298	#else
236		299
		300	ev_tstamp ev_rt_now;
237	#define VAR(name,decl) static decl;	301	#define VAR(name,decl) static decl;
238	#include "ev_vars.h"	302	#include "ev_vars.h"
239	#undef VAR	303	#undef VAR
240		304
241	static int default_loop;	305	static int ev_default_loop_ptr;
242		306
243	#endif	307	#endif
244		308
245	/*****************************************************************************/	309	/*****************************************************************************/
246		310
247	inline ev_tstamp	311	ev_tstamp
248	ev_time (void)	312	ev_time (void)
249	{	313	{
250	#if EV_USE_REALTIME	314	#if EV_USE_REALTIME
251	struct timespec ts;	315	struct timespec ts;
252	clock_gettime (CLOCK_REALTIME, &ts);	316	clock_gettime (CLOCK_REALTIME, &ts);
…		…
271	#endif	335	#endif
272		336
273	return ev_time ();	337	return ev_time ();
274	}	338	}
275		339
		340	#if EV_MULTIPLICITY
276	ev_tstamp	341	ev_tstamp
277	ev_now (EV_P)	342	ev_now (EV_P)
278	{	343	{
279	return rt_now;	344	return ev_rt_now;
280	}	345	}
		346	#endif
281		347
282	#define array_roundsize(type,n) ((n) \| 4 & ~3)	348	#define array_roundsize(type,n) (((n) \| 4) & ~3)
283		349
284	#define array_needsize(type,base,cur,cnt,init) \	350	#define array_needsize(type,base,cur,cnt,init) \
285	if (expect_false ((cnt) > cur)) \	351	if (expect_false ((cnt) > cur)) \
286	{ \	352	{ \
287	int newcnt = cur; \	353	int newcnt = cur; \
…		…
302	stem ## max = array_roundsize (stem ## cnt >> 1); \	368	stem ## max = array_roundsize (stem ## cnt >> 1); \
303	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	369	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
304	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	370	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
305	}	371	}
306		372
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) \	373	#define array_free(stem, idx) \
313	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;
314		375
315	/*****************************************************************************/	376	/*****************************************************************************/
316		377
…		…
330	void	391	void
331	ev_feed_event (EV_P_ void *w, int revents)	392	ev_feed_event (EV_P_ void *w, int revents)
332	{	393	{
333	W w_ = (W)w;	394	W w_ = (W)w;
334		395
335	if (w_->pending)	396	if (expect_false (w_->pending))
336	{	397	{
337	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;	398	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
338	return;	399	return;
339	}	400	}
340		401
		402	if (expect_false (!w_->cb))
		403	return;
		404
341	w_->pending = ++pendingcnt [ABSPRI (w_)];	405	w_->pending = ++pendingcnt [ABSPRI (w_)];
342	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);
343	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;	407	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
344	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;	408	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
345	}	409	}
346		410
347	static void	411	static void
…		…
374	fd_event (EV_A_ fd, revents);	438	fd_event (EV_A_ fd, revents);
375	}	439	}
376		440
377	/*****************************************************************************/	441	/*****************************************************************************/
378		442
379	static void	443	inline void
380	fd_reify (EV_P)	444	fd_reify (EV_P)
381	{	445	{
382	int i;	446	int i;
383		447
384	for (i = 0; i < fdchangecnt; ++i)	448	for (i = 0; i < fdchangecnt; ++i)
…		…
390	int events = 0;	454	int events = 0;
391		455
392	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)
393	events \|= w->events;	457	events \|= w->events;
394		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
395	anfd->reify = 0;	468	anfd->reify = 0;
396		469
397	method_modify (EV_A_ fd, anfd->events, events);	470	backend_modify (EV_A_ fd, anfd->events, events);
398	anfd->events = events;	471	anfd->events = events;
399	}	472	}
400		473
401	fdchangecnt = 0;	474	fdchangecnt = 0;
402	}	475	}
403		476
404	static void	477	static void
405	fd_change (EV_P_ int fd)	478	fd_change (EV_P_ int fd)
406	{	479	{
407	if (anfds [fd].reify)	480	if (expect_false (anfds [fd].reify))
408	return;	481	return;
409		482
410	anfds [fd].reify = 1;	483	anfds [fd].reify = 1;
411		484
412	++fdchangecnt;	485	++fdchangecnt;
413	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	486	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
414	fdchanges [fdchangecnt - 1] = fd;	487	fdchanges [fdchangecnt - 1] = fd;
415	}	488	}
416		489
417	static void	490	static void
418	fd_kill (EV_P_ int fd)	491	fd_kill (EV_P_ int fd)
…		…
424	ev_io_stop (EV_A_ w);	497	ev_io_stop (EV_A_ w);
425	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);
426	}	499	}
427	}	500	}
428		501
429	static int	502	inline int
430	fd_valid (int fd)	503	fd_valid (int fd)
431	{	504	{
432	#ifdef WIN32	505	#ifdef _WIN32
433	return !!win32_get_osfhandle (fd);	506	return _get_osfhandle (fd) != -1;
434	#else	507	#else
435	return fcntl (fd, F_GETFD) != -1;	508	return fcntl (fd, F_GETFD) != -1;
436	#endif	509	#endif
437	}	510	}
438		511
…		…
460	fd_kill (EV_A_ fd);	533	fd_kill (EV_A_ fd);
461	return;	534	return;
462	}	535	}
463	}	536	}
464		537
465	/* 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 */
466	static void	539	static void
467	fd_rearm_all (EV_P)	540	fd_rearm_all (EV_P)
468	{	541	{
469	int fd;	542	int fd;
470		543
…		…
518		591
519	heap [k] = w;	592	heap [k] = w;
520	((W)heap [k])->active = k + 1;	593	((W)heap [k])->active = k + 1;
521	}	594	}
522		595
		596	inline void
		597	adjustheap (WT *heap, int N, int k)
		598	{
		599	upheap (heap, k);
		600	downheap (heap, N, k);
		601	}
		602
523	/*****************************************************************************/	603	/*****************************************************************************/
524		604
525	typedef struct	605	typedef struct
526	{	606	{
527	WL head;	607	WL head;
…		…
548	}	628	}
549		629
550	static void	630	static void
551	sighandler (int signum)	631	sighandler (int signum)
552	{	632	{
553	#if WIN32	633	#if _WIN32
554	signal (signum, sighandler);	634	signal (signum, sighandler);
555	#endif	635	#endif
556		636
557	signals [signum - 1].gotsig = 1;	637	signals [signum - 1].gotsig = 1;
558		638
559	if (!gotsig)	639	if (!gotsig)
560	{	640	{
561	int old_errno = errno;	641	int old_errno = errno;
562	gotsig = 1;	642	gotsig = 1;
563	#ifdef WIN32
564	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
565	#else
566	write (sigpipe [1], &signum, 1);	643	write (sigpipe [1], &signum, 1);
567	#endif
568	errno = old_errno;	644	errno = old_errno;
569	}	645	}
570	}	646	}
571		647
572	void	648	void
573	ev_feed_signal_event (EV_P_ int signum)	649	ev_feed_signal_event (EV_P_ int signum)
574	{	650	{
575	WL w;	651	WL w;
576		652
577	#if EV_MULTIPLICITY	653	#if EV_MULTIPLICITY
578	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));
579	#endif	655	#endif
580		656
581	--signum;	657	--signum;
582		658
583	if (signum < 0 \|\| signum >= signalmax)	659	if (signum < 0 \|\| signum >= signalmax)
…		…
592	static void	668	static void
593	sigcb (EV_P_ struct ev_io *iow, int revents)	669	sigcb (EV_P_ struct ev_io *iow, int revents)
594	{	670	{
595	int signum;	671	int signum;
596		672
597	#ifdef WIN32
598	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
599	#else
600	read (sigpipe [0], &revents, 1);	673	read (sigpipe [0], &revents, 1);
601	#endif
602	gotsig = 0;	674	gotsig = 0;
603		675
604	for (signum = signalmax; signum--; )	676	for (signum = signalmax; signum--; )
605	if (signals [signum].gotsig)	677	if (signals [signum].gotsig)
606	ev_feed_signal_event (EV_A_ signum + 1);	678	ev_feed_signal_event (EV_A_ signum + 1);
607	}	679	}
608		680
609	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
610	siginit (EV_P)	694	siginit (EV_P)
611	{	695	{
612	#ifndef WIN32	696	fd_intern (sigpipe [0]);
613	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	697	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		698
621	ev_io_set (&sigev, sigpipe [0], EV_READ);	699	ev_io_set (&sigev, sigpipe [0], EV_READ);
622	ev_io_start (EV_A_ &sigev);	700	ev_io_start (EV_A_ &sigev);
623	ev_unref (EV_A); /* child watcher should not keep loop alive */	701	ev_unref (EV_A); /* child watcher should not keep loop alive */
624	}	702	}
625		703
626	/*****************************************************************************/	704	/*****************************************************************************/
627		705
628	static struct ev_child *childs [PID_HASHSIZE];	706	static struct ev_child *childs [PID_HASHSIZE];
629		707
630	#ifndef WIN32	708	#ifndef _WIN32
631		709
632	static struct ev_signal childev;	710	static struct ev_signal childev;
633		711
634	#ifndef WCONTINUED	712	#ifndef WCONTINUED
635	# define WCONTINUED 0	713	# define WCONTINUED 0
…		…
656	int pid, status;	734	int pid, status;
657		735
658	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	736	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
659	{	737	{
660	/* 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 */
661	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);	740	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
662		741
663	child_reap (EV_A_ sw, pid, pid, status);	742	child_reap (EV_A_ sw, pid, pid, status);
664	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 */
665	}	744	}
666	}	745	}
667		746
668	#endif	747	#endif
669		748
670	/*****************************************************************************/	749	/*****************************************************************************/
671		750
		751	#if EV_USE_PORT
		752	# include "ev_port.c"
		753	#endif
672	#if EV_USE_KQUEUE	754	#if EV_USE_KQUEUE
673	# include "ev_kqueue.c"	755	# include "ev_kqueue.c"
674	#endif	756	#endif
675	#if EV_USE_EPOLL	757	#if EV_USE_EPOLL
676	# include "ev_epoll.c"	758	# include "ev_epoll.c"
…		…
696		778
697	/* 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 */
698	static int	780	static int
699	enable_secure (void)	781	enable_secure (void)
700	{	782	{
701	#ifdef WIN32	783	#ifdef _WIN32
702	return 0;	784	return 0;
703	#else	785	#else
704	return getuid () != geteuid ()	786	return getuid () != geteuid ()
705	\|\| getgid () != getegid ();	787	\|\| getgid () != getegid ();
706	#endif	788	#endif
707	}	789	}
708		790
709	int	791	unsigned int
710	ev_method (EV_P)	792	ev_supported_backends (void)
711	{	793	{
712	return method;	794	unsigned int flags = 0;
713	}
714		795
715	static void	796	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
716	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)
717	{	807	{
718	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)
719	{	841	{
720	#if EV_USE_MONOTONIC	842	#if EV_USE_MONOTONIC
721	{	843	{
722	struct timespec ts;	844	struct timespec ts;
723	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	845	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
724	have_monotonic = 1;	846	have_monotonic = 1;
725	}	847	}
726	#endif	848	#endif
727		849
728	rt_now = ev_time ();	850	ev_rt_now = ev_time ();
729	mn_now = get_clock ();	851	mn_now = get_clock ();
730	now_floor = mn_now;	852	now_floor = mn_now;
731	rtmn_diff = rt_now - mn_now;	853	rtmn_diff = ev_rt_now - mn_now;
732		854
733	if (methods == EVMETHOD_AUTO)	855	if (!(flags & EVFLAG_NOENV)
734	if (!enable_secure () && getenv ("LIBEV_METHODS"))	856	&& !enable_secure ()
		857	&& getenv ("LIBEV_FLAGS"))
735	methods = atoi (getenv ("LIBEV_METHODS"));	858	flags = atoi (getenv ("LIBEV_FLAGS"));
736	else
737	methods = EVMETHOD_ANY;
738		859
739	method = 0;	860	if (!(flags & 0x0000ffffUL))
740	#if EV_USE_WIN32	861	flags \|= ev_recommended_backends ();
741	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);
742	#endif	866	#endif
743	#if EV_USE_KQUEUE	867	#if EV_USE_KQUEUE
744	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	868	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
745	#endif	869	#endif
746	#if EV_USE_EPOLL	870	#if EV_USE_EPOLL
747	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	871	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
748	#endif	872	#endif
749	#if EV_USE_POLL	873	#if EV_USE_POLL
750	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	874	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
751	#endif	875	#endif
752	#if EV_USE_SELECT	876	#if EV_USE_SELECT
753	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	877	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
754	#endif	878	#endif
755		879
756	ev_watcher_init (&sigev, sigcb);	880	ev_init (&sigev, sigcb);
757	ev_set_priority (&sigev, EV_MAXPRI);	881	ev_set_priority (&sigev, EV_MAXPRI);
758	}	882	}
759	}	883	}
760		884
761	void	885	static void
762	loop_destroy (EV_P)	886	loop_destroy (EV_P)
763	{	887	{
764	int i;	888	int i;
765		889
766	#if EV_USE_WIN32	890	#if EV_USE_PORT
767	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	891	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
768	#endif	892	#endif
769	#if EV_USE_KQUEUE	893	#if EV_USE_KQUEUE
770	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	894	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
771	#endif	895	#endif
772	#if EV_USE_EPOLL	896	#if EV_USE_EPOLL
773	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	897	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
774	#endif	898	#endif
775	#if EV_USE_POLL	899	#if EV_USE_POLL
776	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	900	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
777	#endif	901	#endif
778	#if EV_USE_SELECT	902	#if EV_USE_SELECT
779	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	903	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
780	#endif	904	#endif
781		905
782	for (i = NUMPRI; i--; )	906	for (i = NUMPRI; i--; )
783	array_free (pending, [i]);	907	array_free (pending, [i]);
784		908
785	/* have to use the microsoft-never-gets-it-right macro */	909	/* have to use the microsoft-never-gets-it-right macro */
786	array_free_microshit (fdchange);	910	array_free (fdchange, EMPTY0);
787	array_free_microshit (timer);	911	array_free (timer, EMPTY0);
788	array_free_microshit (periodic);	912	#if EV_PERIODICS
789	array_free_microshit (idle);	913	array_free (periodic, EMPTY0);
790	array_free_microshit (prepare);	914	#endif
791	array_free_microshit (check);	915	array_free (idle, EMPTY0);
		916	array_free (prepare, EMPTY0);
		917	array_free (check, EMPTY0);
792		918
793	method = 0;	919	backend = 0;
794	}	920	}
795		921
796	static void	922	static void
797	loop_fork (EV_P)	923	loop_fork (EV_P)
798	{	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
799	#if EV_USE_EPOLL	931	#if EV_USE_EPOLL
800	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	932	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
801	#endif
802	#if EV_USE_KQUEUE
803	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
804	#endif	933	#endif
805		934
806	if (ev_is_active (&sigev))	935	if (ev_is_active (&sigev))
807	{	936	{
808	/* default loop */	937	/* default loop */
…		…
821	postfork = 0;	950	postfork = 0;
822	}	951	}
823		952
824	#if EV_MULTIPLICITY	953	#if EV_MULTIPLICITY
825	struct ev_loop *	954	struct ev_loop *
826	ev_loop_new (int methods)	955	ev_loop_new (unsigned int flags)
827	{	956	{
828	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));
829		958
830	memset (loop, 0, sizeof (struct ev_loop));	959	memset (loop, 0, sizeof (struct ev_loop));
831		960
832	loop_init (EV_A_ methods);	961	loop_init (EV_A_ flags);
833		962
834	if (ev_method (EV_A))	963	if (ev_backend (EV_A))
835	return loop;	964	return loop;
836		965
837	return 0;	966	return 0;
838	}	967	}
839		968
…		…
852		981
853	#endif	982	#endif
854		983
855	#if EV_MULTIPLICITY	984	#if EV_MULTIPLICITY
856	struct ev_loop *	985	struct ev_loop *
		986	ev_default_loop_init (unsigned int flags)
857	#else	987	#else
858	int	988	int
		989	ev_default_loop (unsigned int flags)
859	#endif	990	#endif
860	ev_default_loop (int methods)
861	{	991	{
862	if (sigpipe [0] == sigpipe [1])	992	if (sigpipe [0] == sigpipe [1])
863	if (pipe (sigpipe))	993	if (pipe (sigpipe))
864	return 0;	994	return 0;
865		995
866	if (!default_loop)	996	if (!ev_default_loop_ptr)
867	{	997	{
868	#if EV_MULTIPLICITY	998	#if EV_MULTIPLICITY
869	struct ev_loop *loop = default_loop = &default_loop_struct;	999	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
870	#else	1000	#else
871	default_loop = 1;	1001	ev_default_loop_ptr = 1;
872	#endif	1002	#endif
873		1003
874	loop_init (EV_A_ methods);	1004	loop_init (EV_A_ flags);
875		1005
876	if (ev_method (EV_A))	1006	if (ev_backend (EV_A))
877	{	1007	{
878	siginit (EV_A);	1008	siginit (EV_A);
879		1009
880	#ifndef WIN32	1010	#ifndef _WIN32
881	ev_signal_init (&childev, childcb, SIGCHLD);	1011	ev_signal_init (&childev, childcb, SIGCHLD);
882	ev_set_priority (&childev, EV_MAXPRI);	1012	ev_set_priority (&childev, EV_MAXPRI);
883	ev_signal_start (EV_A_ &childev);	1013	ev_signal_start (EV_A_ &childev);
884	ev_unref (EV_A); /* child watcher should not keep loop alive */	1014	ev_unref (EV_A); /* child watcher should not keep loop alive */
885	#endif	1015	#endif
886	}	1016	}
887	else	1017	else
888	default_loop = 0;	1018	ev_default_loop_ptr = 0;
889	}	1019	}
890		1020
891	return default_loop;	1021	return ev_default_loop_ptr;
892	}	1022	}
893		1023
894	void	1024	void
895	ev_default_destroy (void)	1025	ev_default_destroy (void)
896	{	1026	{
897	#if EV_MULTIPLICITY	1027	#if EV_MULTIPLICITY
898	struct ev_loop *loop = default_loop;	1028	struct ev_loop *loop = ev_default_loop_ptr;
899	#endif	1029	#endif
900		1030
901	#ifndef WIN32	1031	#ifndef _WIN32
902	ev_ref (EV_A); /* child watcher */	1032	ev_ref (EV_A); /* child watcher */
903	ev_signal_stop (EV_A_ &childev);	1033	ev_signal_stop (EV_A_ &childev);
904	#endif	1034	#endif
905		1035
906	ev_ref (EV_A); /* signal watcher */	1036	ev_ref (EV_A); /* signal watcher */
…		…
914		1044
915	void	1045	void
916	ev_default_fork (void)	1046	ev_default_fork (void)
917	{	1047	{
918	#if EV_MULTIPLICITY	1048	#if EV_MULTIPLICITY
919	struct ev_loop *loop = default_loop;	1049	struct ev_loop *loop = ev_default_loop_ptr;
920	#endif	1050	#endif
921		1051
922	if (method)	1052	if (backend)
923	postfork = 1;	1053	postfork = 1;
924	}	1054	}
925		1055
926	/*****************************************************************************/	1056	/*****************************************************************************/
927		1057
…		…
935	return 1;	1065	return 1;
936		1066
937	return 0;	1067	return 0;
938	}	1068	}
939		1069
940	static void	1070	inline void
941	call_pending (EV_P)	1071	call_pending (EV_P)
942	{	1072	{
943	int pri;	1073	int pri;
944		1074
945	for (pri = NUMPRI; pri--; )	1075	for (pri = NUMPRI; pri--; )
946	while (pendingcnt [pri])	1076	while (pendingcnt [pri])
947	{	1077	{
948	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1078	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
949		1079
950	if (p->w)	1080	if (expect_true (p->w))
951	{	1081	{
952	p->w->pending = 0;	1082	p->w->pending = 0;
953	p->w->cb (EV_A_ p->w, p->events);	1083	EV_CB_INVOKE (p->w, p->events);
954	}	1084	}
955	}	1085	}
956	}	1086	}
957		1087
958	static void	1088	inline void
959	timers_reify (EV_P)	1089	timers_reify (EV_P)
960	{	1090	{
961	while (timercnt && ((WT)timers [0])->at <= mn_now)	1091	while (timercnt && ((WT)timers [0])->at <= mn_now)
962	{	1092	{
963	struct ev_timer *w = timers [0];	1093	struct ev_timer *w = timers [0];
…		…
966		1096
967	/* first reschedule or stop timer */	1097	/* first reschedule or stop timer */
968	if (w->repeat)	1098	if (w->repeat)
969	{	1099	{
970	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
971	((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
972	downheap ((WT *)timers, timercnt, 0);	1106	downheap ((WT *)timers, timercnt, 0);
973	}	1107	}
974	else	1108	else
975	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1109	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
976		1110
977	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);	1111	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
978	}	1112	}
979	}	1113	}
980		1114
981	static void	1115	#if EV_PERIODICS
		1116	inline void
982	periodics_reify (EV_P)	1117	periodics_reify (EV_P)
983	{	1118	{
984	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1119	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
985	{	1120	{
986	struct ev_periodic *w = periodics [0];	1121	struct ev_periodic *w = periodics [0];
987		1122
988	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1123	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
989		1124
990	/* first reschedule or stop timer */	1125	/* first reschedule or stop timer */
991	if (w->reschedule_cb)	1126	if (w->reschedule_cb)
992	{	1127	{
993	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);
994
995	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));
996	downheap ((WT *)periodics, periodiccnt, 0);	1130	downheap ((WT *)periodics, periodiccnt, 0);
997	}	1131	}
998	else if (w->interval)	1132	else if (w->interval)
999	{	1133	{
1000	((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;
1001	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));
1002	downheap ((WT *)periodics, periodiccnt, 0);	1136	downheap ((WT *)periodics, periodiccnt, 0);
1003	}	1137	}
1004	else	1138	else
1005	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1139	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
1006		1140
…		…
1017	for (i = 0; i < periodiccnt; ++i)	1151	for (i = 0; i < periodiccnt; ++i)
1018	{	1152	{
1019	struct ev_periodic *w = periodics [i];	1153	struct ev_periodic *w = periodics [i];
1020		1154
1021	if (w->reschedule_cb)	1155	if (w->reschedule_cb)
1022	((WT)w)->at = w->reschedule_cb (w, rt_now);	1156	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1023	else if (w->interval)	1157	else if (w->interval)
1024	((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;
1025	}	1159	}
1026		1160
1027	/* now rebuild the heap */	1161	/* now rebuild the heap */
1028	for (i = periodiccnt >> 1; i--; )	1162	for (i = periodiccnt >> 1; i--; )
1029	downheap ((WT *)periodics, periodiccnt, i);	1163	downheap ((WT *)periodics, periodiccnt, i);
1030	}	1164	}
		1165	#endif
1031		1166
1032	inline int	1167	inline int
1033	time_update_monotonic (EV_P)	1168	time_update_monotonic (EV_P)
1034	{	1169	{
1035	mn_now = get_clock ();	1170	mn_now = get_clock ();
1036		1171
1037	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1172	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
1038	{	1173	{
1039	rt_now = rtmn_diff + mn_now;	1174	ev_rt_now = rtmn_diff + mn_now;
1040	return 0;	1175	return 0;
1041	}	1176	}
1042	else	1177	else
1043	{	1178	{
1044	now_floor = mn_now;	1179	now_floor = mn_now;
1045	rt_now = ev_time ();	1180	ev_rt_now = ev_time ();
1046	return 1;	1181	return 1;
1047	}	1182	}
1048	}	1183	}
1049		1184
1050	static void	1185	inline void
1051	time_update (EV_P)	1186	time_update (EV_P)
1052	{	1187	{
1053	int i;	1188	int i;
1054		1189
1055	#if EV_USE_MONOTONIC	1190	#if EV_USE_MONOTONIC
…		…
1059	{	1194	{
1060	ev_tstamp odiff = rtmn_diff;	1195	ev_tstamp odiff = rtmn_diff;
1061		1196
1062	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 */
1063	{	1198	{
1064	rtmn_diff = rt_now - mn_now;	1199	rtmn_diff = ev_rt_now - mn_now;
1065		1200
1066	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1201	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1067	return; /* all is well */	1202	return; /* all is well */
1068		1203
1069	rt_now = ev_time ();	1204	ev_rt_now = ev_time ();
1070	mn_now = get_clock ();	1205	mn_now = get_clock ();
1071	now_floor = mn_now;	1206	now_floor = mn_now;
1072	}	1207	}
1073		1208
		1209	# if EV_PERIODICS
1074	periodics_reschedule (EV_A);	1210	periodics_reschedule (EV_A);
		1211	# endif
1075	/* no timer adjustment, as the monotonic clock doesn't jump */	1212	/* no timer adjustment, as the monotonic clock doesn't jump */
1076	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1213	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1077	}	1214	}
1078	}	1215	}
1079	else	1216	else
1080	#endif	1217	#endif
1081	{	1218	{
1082	rt_now = ev_time ();	1219	ev_rt_now = ev_time ();
1083		1220
1084	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))
1085	{	1222	{
		1223	#if EV_PERIODICS
1086	periodics_reschedule (EV_A);	1224	periodics_reschedule (EV_A);
		1225	#endif
1087		1226
1088	/* 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 */
1089	for (i = 0; i < timercnt; ++i)	1228	for (i = 0; i < timercnt; ++i)
1090	((WT)timers [i])->at += rt_now - mn_now;	1229	((WT)timers [i])->at += ev_rt_now - mn_now;
1091	}	1230	}
1092		1231
1093	mn_now = rt_now;	1232	mn_now = ev_rt_now;
1094	}	1233	}
1095	}	1234	}
1096		1235
1097	void	1236	void
1098	ev_ref (EV_P)	1237	ev_ref (EV_P)
…		…
1109	static int loop_done;	1248	static int loop_done;
1110		1249
1111	void	1250	void
1112	ev_loop (EV_P_ int flags)	1251	ev_loop (EV_P_ int flags)
1113	{	1252	{
1114	double block;
1115	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1253	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK)
		1254	? EVUNLOOP_ONE
		1255	: EVUNLOOP_CANCEL;
1116		1256
1117	do	1257	while (activecnt)
1118	{	1258	{
1119	/* queue check watchers (and execute them) */	1259	/* queue check watchers (and execute them) */
1120	if (expect_false (preparecnt))	1260	if (expect_false (preparecnt))
1121	{	1261	{
1122	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1262	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1129		1269
1130	/* update fd-related kernel structures */	1270	/* update fd-related kernel structures */
1131	fd_reify (EV_A);	1271	fd_reify (EV_A);
1132		1272
1133	/* calculate blocking time */	1273	/* calculate blocking time */
		1274	{
		1275	double block;
1134		1276
1135	/* we only need this for !monotonic clock or timers, but as we basically	1277	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1136	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 */
1137	#if EV_USE_MONOTONIC	1282	#if EV_USE_MONOTONIC
1138	if (expect_true (have_monotonic))	1283	if (expect_true (have_monotonic))
1139	time_update_monotonic (EV_A);	1284	time_update_monotonic (EV_A);
1140	else	1285	else
1141	#endif	1286	#endif
1142	{	1287	{
1143	rt_now = ev_time ();	1288	ev_rt_now = ev_time ();
1144	mn_now = rt_now;	1289	mn_now = ev_rt_now;
1145	}	1290	}
1146		1291
1147	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1148	block = 0.;
1149	else
1150	{
1151	block = MAX_BLOCKTIME;	1292	block = MAX_BLOCKTIME;
1152		1293
1153	if (timercnt)	1294	if (timercnt)
1154	{	1295	{
1155	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1296	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
1156	if (block > to) block = to;	1297	if (block > to) block = to;
1157	}	1298	}
1158		1299
		1300	#if EV_PERIODICS
1159	if (periodiccnt)	1301	if (periodiccnt)
1160	{	1302	{
1161	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1303	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1162	if (block > to) block = to;	1304	if (block > to) block = to;
1163	}	1305	}
		1306	#endif
1164		1307
1165	if (block < 0.) block = 0.;	1308	if (expect_false (block < 0.)) block = 0.;
1166	}	1309	}
1167		1310
1168	method_poll (EV_A_ block);	1311	backend_poll (EV_A_ block);
		1312	}
1169		1313
1170	/* update rt_now, do magic */	1314	/* update ev_rt_now, do magic */
1171	time_update (EV_A);	1315	time_update (EV_A);
1172		1316
1173	/* queue pending timers and reschedule them */	1317	/* queue pending timers and reschedule them */
1174	timers_reify (EV_A); /* relative timers called last */	1318	timers_reify (EV_A); /* relative timers called last */
		1319	#if EV_PERIODICS
1175	periodics_reify (EV_A); /* absolute timers called first */	1320	periodics_reify (EV_A); /* absolute timers called first */
		1321	#endif
1176		1322
1177	/* queue idle watchers unless io or timers are pending */	1323	/* queue idle watchers unless io or timers are pending */
1178	if (idlecnt && !any_pending (EV_A))	1324	if (idlecnt && !any_pending (EV_A))
1179	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1325	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1180		1326
1181	/* queue check watchers, to be executed first */	1327	/* queue check watchers, to be executed first */
1182	if (checkcnt)	1328	if (expect_false (checkcnt))
1183	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1329	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1184		1330
1185	call_pending (EV_A);	1331	call_pending (EV_A);
1186	}
1187	while (activecnt && !loop_done);
1188		1332
1189	if (loop_done != 2)	1333	if (expect_false (loop_done))
1190	loop_done = 0;	1334	break;
		1335	}
		1336
		1337	if (loop_done == EVUNLOOP_ONE)
		1338	loop_done = EVUNLOOP_CANCEL;
1191	}	1339	}
1192		1340
1193	void	1341	void
1194	ev_unloop (EV_P_ int how)	1342	ev_unloop (EV_P_ int how)
1195	{	1343	{
…		…
1252	void	1400	void
1253	ev_io_start (EV_P_ struct ev_io *w)	1401	ev_io_start (EV_P_ struct ev_io *w)
1254	{	1402	{
1255	int fd = w->fd;	1403	int fd = w->fd;
1256		1404
1257	if (ev_is_active (w))	1405	if (expect_false (ev_is_active (w)))
1258	return;	1406	return;
1259		1407
1260	assert (("ev_io_start called with negative fd", fd >= 0));	1408	assert (("ev_io_start called with negative fd", fd >= 0));
1261		1409
1262	ev_start (EV_A_ (W)w, 1);	1410	ev_start (EV_A_ (W)w, 1);
…		…
1268		1416
1269	void	1417	void
1270	ev_io_stop (EV_P_ struct ev_io *w)	1418	ev_io_stop (EV_P_ struct ev_io *w)
1271	{	1419	{
1272	ev_clear_pending (EV_A_ (W)w);	1420	ev_clear_pending (EV_A_ (W)w);
1273	if (!ev_is_active (w))	1421	if (expect_false (!ev_is_active (w)))
1274	return;	1422	return;
		1423
		1424	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1275		1425
1276	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1426	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1277	ev_stop (EV_A_ (W)w);	1427	ev_stop (EV_A_ (W)w);
1278		1428
1279	fd_change (EV_A_ w->fd);	1429	fd_change (EV_A_ w->fd);
1280	}	1430	}
1281		1431
1282	void	1432	void
1283	ev_timer_start (EV_P_ struct ev_timer *w)	1433	ev_timer_start (EV_P_ struct ev_timer *w)
1284	{	1434	{
1285	if (ev_is_active (w))	1435	if (expect_false (ev_is_active (w)))
1286	return;	1436	return;
1287		1437
1288	((WT)w)->at += mn_now;	1438	((WT)w)->at += mn_now;
1289		1439
1290	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.));
1291		1441
1292	ev_start (EV_A_ (W)w, ++timercnt);	1442	ev_start (EV_A_ (W)w, ++timercnt);
1293	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1443	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1294	timers [timercnt - 1] = w;	1444	timers [timercnt - 1] = w;
1295	upheap ((WT *)timers, timercnt - 1);	1445	upheap ((WT *)timers, timercnt - 1);
1296		1446
1297	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1447	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1298	}	1448	}
1299		1449
1300	void	1450	void
1301	ev_timer_stop (EV_P_ struct ev_timer *w)	1451	ev_timer_stop (EV_P_ struct ev_timer *w)
1302	{	1452	{
1303	ev_clear_pending (EV_A_ (W)w);	1453	ev_clear_pending (EV_A_ (W)w);
1304	if (!ev_is_active (w))	1454	if (expect_false (!ev_is_active (w)))
1305	return;	1455	return;
1306		1456
1307	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1457	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1308		1458
1309	if (((W)w)->active < timercnt--)	1459	if (expect_true (((W)w)->active < timercnt--))
1310	{	1460	{
1311	timers [((W)w)->active - 1] = timers [timercnt];	1461	timers [((W)w)->active - 1] = timers [timercnt];
1312	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1462	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1313	}	1463	}
1314		1464
1315	((WT)w)->at = w->repeat;	1465	((WT)w)->at -= mn_now;
1316		1466
1317	ev_stop (EV_A_ (W)w);	1467	ev_stop (EV_A_ (W)w);
1318	}	1468	}
1319		1469
1320	void	1470	void
…		…
1323	if (ev_is_active (w))	1473	if (ev_is_active (w))
1324	{	1474	{
1325	if (w->repeat)	1475	if (w->repeat)
1326	{	1476	{
1327	((WT)w)->at = mn_now + w->repeat;	1477	((WT)w)->at = mn_now + w->repeat;
1328	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1478	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1329	}	1479	}
1330	else	1480	else
1331	ev_timer_stop (EV_A_ w);	1481	ev_timer_stop (EV_A_ w);
1332	}	1482	}
1333	else if (w->repeat)	1483	else if (w->repeat)
		1484	{
		1485	w->at = w->repeat;
1334	ev_timer_start (EV_A_ w);	1486	ev_timer_start (EV_A_ w);
		1487	}
1335	}	1488	}
1336		1489
		1490	#if EV_PERIODICS
1337	void	1491	void
1338	ev_periodic_start (EV_P_ struct ev_periodic *w)	1492	ev_periodic_start (EV_P_ struct ev_periodic *w)
1339	{	1493	{
1340	if (ev_is_active (w))	1494	if (expect_false (ev_is_active (w)))
1341	return;	1495	return;
1342		1496
1343	if (w->reschedule_cb)	1497	if (w->reschedule_cb)
1344	((WT)w)->at = w->reschedule_cb (w, rt_now);	1498	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
1345	else if (w->interval)	1499	else if (w->interval)
1346	{	1500	{
1347	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.));
1348	/* 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 */
1349	((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;
1350	}	1504	}
1351		1505
1352	ev_start (EV_A_ (W)w, ++periodiccnt);	1506	ev_start (EV_A_ (W)w, ++periodiccnt);
1353	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1507	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1354	periodics [periodiccnt - 1] = w;	1508	periodics [periodiccnt - 1] = w;
1355	upheap ((WT *)periodics, periodiccnt - 1);	1509	upheap ((WT *)periodics, periodiccnt - 1);
1356		1510
1357	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1511	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1358	}	1512	}
1359		1513
1360	void	1514	void
1361	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1515	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1362	{	1516	{
1363	ev_clear_pending (EV_A_ (W)w);	1517	ev_clear_pending (EV_A_ (W)w);
1364	if (!ev_is_active (w))	1518	if (expect_false (!ev_is_active (w)))
1365	return;	1519	return;
1366		1520
1367	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1521	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1368		1522
1369	if (((W)w)->active < periodiccnt--)	1523	if (expect_true (((W)w)->active < periodiccnt--))
1370	{	1524	{
1371	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1525	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1372	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1526	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1373	}	1527	}
1374		1528
1375	ev_stop (EV_A_ (W)w);	1529	ev_stop (EV_A_ (W)w);
1376	}	1530	}
1377		1531
1378	void	1532	void
1379	ev_periodic_again (EV_P_ struct ev_periodic *w)	1533	ev_periodic_again (EV_P_ struct ev_periodic *w)
1380	{	1534	{
		1535	/* TODO: use adjustheap and recalculation */
1381	ev_periodic_stop (EV_A_ w);	1536	ev_periodic_stop (EV_A_ w);
1382	ev_periodic_start (EV_A_ w);	1537	ev_periodic_start (EV_A_ w);
1383	}	1538	}
		1539	#endif
1384		1540
1385	void	1541	void
1386	ev_idle_start (EV_P_ struct ev_idle *w)	1542	ev_idle_start (EV_P_ struct ev_idle *w)
1387	{	1543	{
1388	if (ev_is_active (w))	1544	if (expect_false (ev_is_active (w)))
1389	return;	1545	return;
1390		1546
1391	ev_start (EV_A_ (W)w, ++idlecnt);	1547	ev_start (EV_A_ (W)w, ++idlecnt);
1392	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1548	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1393	idles [idlecnt - 1] = w;	1549	idles [idlecnt - 1] = w;
1394	}	1550	}
1395		1551
1396	void	1552	void
1397	ev_idle_stop (EV_P_ struct ev_idle *w)	1553	ev_idle_stop (EV_P_ struct ev_idle *w)
1398	{	1554	{
1399	ev_clear_pending (EV_A_ (W)w);	1555	ev_clear_pending (EV_A_ (W)w);
1400	if (ev_is_active (w))	1556	if (expect_false (!ev_is_active (w)))
1401	return;	1557	return;
1402		1558
1403	idles [((W)w)->active - 1] = idles [--idlecnt];	1559	idles [((W)w)->active - 1] = idles [--idlecnt];
1404	ev_stop (EV_A_ (W)w);	1560	ev_stop (EV_A_ (W)w);
1405	}	1561	}
1406		1562
1407	void	1563	void
1408	ev_prepare_start (EV_P_ struct ev_prepare *w)	1564	ev_prepare_start (EV_P_ struct ev_prepare *w)
1409	{	1565	{
1410	if (ev_is_active (w))	1566	if (expect_false (ev_is_active (w)))
1411	return;	1567	return;
1412		1568
1413	ev_start (EV_A_ (W)w, ++preparecnt);	1569	ev_start (EV_A_ (W)w, ++preparecnt);
1414	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1570	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1415	prepares [preparecnt - 1] = w;	1571	prepares [preparecnt - 1] = w;
1416	}	1572	}
1417		1573
1418	void	1574	void
1419	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1575	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1420	{	1576	{
1421	ev_clear_pending (EV_A_ (W)w);	1577	ev_clear_pending (EV_A_ (W)w);
1422	if (ev_is_active (w))	1578	if (expect_false (!ev_is_active (w)))
1423	return;	1579	return;
1424		1580
1425	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1581	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1426	ev_stop (EV_A_ (W)w);	1582	ev_stop (EV_A_ (W)w);
1427	}	1583	}
1428		1584
1429	void	1585	void
1430	ev_check_start (EV_P_ struct ev_check *w)	1586	ev_check_start (EV_P_ struct ev_check *w)
1431	{	1587	{
1432	if (ev_is_active (w))	1588	if (expect_false (ev_is_active (w)))
1433	return;	1589	return;
1434		1590
1435	ev_start (EV_A_ (W)w, ++checkcnt);	1591	ev_start (EV_A_ (W)w, ++checkcnt);
1436	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1592	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1437	checks [checkcnt - 1] = w;	1593	checks [checkcnt - 1] = w;
1438	}	1594	}
1439		1595
1440	void	1596	void
1441	ev_check_stop (EV_P_ struct ev_check *w)	1597	ev_check_stop (EV_P_ struct ev_check *w)
1442	{	1598	{
1443	ev_clear_pending (EV_A_ (W)w);	1599	ev_clear_pending (EV_A_ (W)w);
1444	if (ev_is_active (w))	1600	if (expect_false (!ev_is_active (w)))
1445	return;	1601	return;
1446		1602
1447	checks [((W)w)->active - 1] = checks [--checkcnt];	1603	checks [((W)w)->active - 1] = checks [--checkcnt];
1448	ev_stop (EV_A_ (W)w);	1604	ev_stop (EV_A_ (W)w);
1449	}	1605	}
…		…
1454		1610
1455	void	1611	void
1456	ev_signal_start (EV_P_ struct ev_signal *w)	1612	ev_signal_start (EV_P_ struct ev_signal *w)
1457	{	1613	{
1458	#if EV_MULTIPLICITY	1614	#if EV_MULTIPLICITY
1459	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));
1460	#endif	1616	#endif
1461	if (ev_is_active (w))	1617	if (expect_false (ev_is_active (w)))
1462	return;	1618	return;
1463		1619
1464	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));
1465		1621
1466	ev_start (EV_A_ (W)w, 1);	1622	ev_start (EV_A_ (W)w, 1);
1467	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1623	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1468	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1624	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1469		1625
1470	if (!((WL)w)->next)	1626	if (!((WL)w)->next)
1471	{	1627	{
1472	#if WIN32	1628	#if _WIN32
1473	signal (w->signum, sighandler);	1629	signal (w->signum, sighandler);
1474	#else	1630	#else
1475	struct sigaction sa;	1631	struct sigaction sa;
1476	sa.sa_handler = sighandler;	1632	sa.sa_handler = sighandler;
1477	sigfillset (&sa.sa_mask);	1633	sigfillset (&sa.sa_mask);
…		…
1483		1639
1484	void	1640	void
1485	ev_signal_stop (EV_P_ struct ev_signal *w)	1641	ev_signal_stop (EV_P_ struct ev_signal *w)
1486	{	1642	{
1487	ev_clear_pending (EV_A_ (W)w);	1643	ev_clear_pending (EV_A_ (W)w);
1488	if (!ev_is_active (w))	1644	if (expect_false (!ev_is_active (w)))
1489	return;	1645	return;
1490		1646
1491	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1647	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1492	ev_stop (EV_A_ (W)w);	1648	ev_stop (EV_A_ (W)w);
1493		1649
…		…
1497		1653
1498	void	1654	void
1499	ev_child_start (EV_P_ struct ev_child *w)	1655	ev_child_start (EV_P_ struct ev_child *w)
1500	{	1656	{
1501	#if EV_MULTIPLICITY	1657	#if EV_MULTIPLICITY
1502	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));
1503	#endif	1659	#endif
1504	if (ev_is_active (w))	1660	if (expect_false (ev_is_active (w)))
1505	return;	1661	return;
1506		1662
1507	ev_start (EV_A_ (W)w, 1);	1663	ev_start (EV_A_ (W)w, 1);
1508	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1664	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1509	}	1665	}
1510		1666
1511	void	1667	void
1512	ev_child_stop (EV_P_ struct ev_child *w)	1668	ev_child_stop (EV_P_ struct ev_child *w)
1513	{	1669	{
1514	ev_clear_pending (EV_A_ (W)w);	1670	ev_clear_pending (EV_A_ (W)w);
1515	if (ev_is_active (w))	1671	if (expect_false (!ev_is_active (w)))
1516	return;	1672	return;
1517		1673
1518	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1674	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1519	ev_stop (EV_A_ (W)w);	1675	ev_stop (EV_A_ (W)w);
1520	}	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
1521		1715
1522	/*****************************************************************************/	1716	/*****************************************************************************/
1523		1717
1524	struct ev_once	1718	struct ev_once
1525	{	1719	{
…		…
1557	void	1751	void
1558	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)
1559	{	1753	{
1560	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));
1561		1755
1562	if (!once)	1756	if (expect_false (!once))
		1757	{
1563	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1758	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1564	else	1759	return;
1565	{	1760	}
		1761
1566	once->cb = cb;	1762	once->cb = cb;
1567	once->arg = arg;	1763	once->arg = arg;
1568		1764
1569	ev_watcher_init (&once->io, once_cb_io);	1765	ev_init (&once->io, once_cb_io);
1570	if (fd >= 0)	1766	if (fd >= 0)
1571	{	1767	{
1572	ev_io_set (&once->io, fd, events);	1768	ev_io_set (&once->io, fd, events);
1573	ev_io_start (EV_A_ &once->io);	1769	ev_io_start (EV_A_ &once->io);
1574	}	1770	}
1575		1771
1576	ev_watcher_init (&once->to, once_cb_to);	1772	ev_init (&once->to, once_cb_to);
1577	if (timeout >= 0.)	1773	if (timeout >= 0.)
1578	{	1774	{
1579	ev_timer_set (&once->to, timeout, 0.);	1775	ev_timer_set (&once->to, timeout, 0.);
1580	ev_timer_start (EV_A_ &once->to);	1776	ev_timer_start (EV_A_ &once->to);
1581	}
1582	}	1777	}
1583	}	1778	}
1584		1779
		1780	#ifdef __cplusplus
		1781	}
		1782	#endif
		1783

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Comparing libev/ev.c (file contents): Revision 1.81 by root, Fri Nov 9 17:07:59 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 1.81 by root, Fri Nov 9 17:07:59 2007 UTC vs.
Revision 1.135 by root, Sat Nov 24 06:23:27 2007 UTC