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

Comparing libev/ev.c (file contents):
Revision 1.75 by root, Tue Nov 6 19:29:20 2007 UTC vs.
Revision 1.120 by root, Fri Nov 16 01:54:25 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
		31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
31	#ifndef EV_STANDALONE	36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
33		38
34	# if HAVE_CLOCK_GETTIME	39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
35	# define EV_USE_MONOTONIC 1	41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
36	# define EV_USE_REALTIME 1	44	# define EV_USE_REALTIME 1
		45	# endif
37	# endif	46	# endif
38		47
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	49	# define EV_USE_SELECT 1
41	# endif	50	# endif
42		51
43	# if HAVE_POLL && HAVE_POLL_H	52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	53	# define EV_USE_POLL 1
45	# endif	54	# endif
46		55
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	57	# define EV_USE_EPOLL 1
49	# endif	58	# endif
50		59
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	61	# define EV_USE_KQUEUE 1
		62	# endif
		63
		64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
53	# endif	66	# endif
54		67
55	#endif	68	#endif
56		69
57	#include <math.h>	70	#include <math.h>
…		…
66	#include <sys/types.h>	79	#include <sys/types.h>
67	#include <time.h>	80	#include <time.h>
68		81
69	#include <signal.h>	82	#include <signal.h>
70		83
71	#ifndef WIN32	84	#ifndef _WIN32
72	# include <unistd.h>	85	# include <unistd.h>
73	# include <sys/time.h>	86	# include <sys/time.h>
74	# include <sys/wait.h>	87	# include <sys/wait.h>
		88	#else
		89	# define WIN32_LEAN_AND_MEAN
		90	# include <windows.h>
		91	# ifndef EV_SELECT_IS_WINSOCKET
		92	# define EV_SELECT_IS_WINSOCKET 1
75	#endif	93	# endif
		94	#endif
		95
76	/**/	96	/**/
77		97
78	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
79	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 1
80	#endif	100	#endif
81		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 1
		104	#endif
		105
82	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
83	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
		108	# define EV_SELECT_USE_FD_SET 1
84	#endif	109	#endif
85		110
86	#ifndef EV_USE_POLL	111	#ifndef EV_USE_POLL
87	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	112	# ifdef _WIN32
		113	# define EV_USE_POLL 0
		114	# else
		115	# define EV_USE_POLL 1
		116	# endif
88	#endif	117	#endif
89		118
90	#ifndef EV_USE_EPOLL	119	#ifndef EV_USE_EPOLL
91	# define EV_USE_EPOLL 0	120	# define EV_USE_EPOLL 0
92	#endif	121	#endif
93		122
94	#ifndef EV_USE_KQUEUE	123	#ifndef EV_USE_KQUEUE
95	# define EV_USE_KQUEUE 0	124	# define EV_USE_KQUEUE 0
96	#endif	125	#endif
97		126
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	127	#ifndef EV_USE_PORT
109	# define EV_USE_REALTIME 1	128	# define EV_USE_PORT 0
110	#endif	129	#endif
111		130
112	/**/	131	/**/
		132
		133	/* darwin simply cannot be helped */
		134	#ifdef __APPLE__
		135	# undef EV_USE_POLL
		136	# undef EV_USE_KQUEUE
		137	#endif
113		138
114	#ifndef CLOCK_MONOTONIC	139	#ifndef CLOCK_MONOTONIC
115	# undef EV_USE_MONOTONIC	140	# undef EV_USE_MONOTONIC
116	# define EV_USE_MONOTONIC 0	141	# define EV_USE_MONOTONIC 0
117	#endif	142	#endif
…		…
119	#ifndef CLOCK_REALTIME	144	#ifndef CLOCK_REALTIME
120	# undef EV_USE_REALTIME	145	# undef EV_USE_REALTIME
121	# define EV_USE_REALTIME 0	146	# define EV_USE_REALTIME 0
122	#endif	147	#endif
123		148
		149	#if EV_SELECT_IS_WINSOCKET
		150	# include <winsock.h>
		151	#endif
		152
124	/**/	153	/**/
125		154
126	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	155	#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) */	156	#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 */	157	#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 */	158	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
130		159
		160	#ifdef EV_H
		161	# include EV_H
		162	#else
131	#include "ev.h"	163	# include "ev.h"
		164	#endif
132		165
133	#if __GNUC__ >= 3	166	#if __GNUC__ >= 3
134	# define expect(expr,value) __builtin_expect ((expr),(value))	167	# define expect(expr,value) __builtin_expect ((expr),(value))
135	# define inline inline	168	# define inline inline
136	#else	169	#else
…		…
142	#define expect_true(expr) expect ((expr) != 0, 1)	175	#define expect_true(expr) expect ((expr) != 0, 1)
143		176
144	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	177	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
145	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	178	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
146		179
		180	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		181	#define EMPTY2(a,b) /* used to suppress some warnings */
		182
147	typedef struct ev_watcher *W;	183	typedef struct ev_watcher *W;
148	typedef struct ev_watcher_list *WL;	184	typedef struct ev_watcher_list *WL;
149	typedef struct ev_watcher_time *WT;	185	typedef struct ev_watcher_time *WT;
150		186
151	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	187	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
152		188
		189	#ifdef _WIN32
153	#include "ev_win32.c"	190	# include "ev_win32.c"
		191	#endif
154		192
155	/*****************************************************************************/	193	/*****************************************************************************/
156		194
157	static void (syserr_cb)(const char msg);	195	static void (syserr_cb)(const char msg);
158		196
…		…
205	typedef struct	243	typedef struct
206	{	244	{
207	WL head;	245	WL head;
208	unsigned char events;	246	unsigned char events;
209	unsigned char reify;	247	unsigned char reify;
		248	#if EV_SELECT_IS_WINSOCKET
		249	SOCKET handle;
		250	#endif
210	} ANFD;	251	} ANFD;
211		252
212	typedef struct	253	typedef struct
213	{	254	{
214	W w;	255	W w;
215	int events;	256	int events;
216	} ANPENDING;	257	} ANPENDING;
217		258
218	#if EV_MULTIPLICITY	259	#if EV_MULTIPLICITY
219		260
220	struct ev_loop	261	struct ev_loop
221	{	262	{
		263	ev_tstamp ev_rt_now;
		264	#define ev_rt_now ((loop)->ev_rt_now)
222	# define VAR(name,decl) decl;	265	#define VAR(name,decl) decl;
223	# include "ev_vars.h"	266	#include "ev_vars.h"
224	};
225	# undef VAR	267	#undef VAR
		268	};
226	# include "ev_wrap.h"	269	#include "ev_wrap.h"
		270
		271	static struct ev_loop default_loop_struct;
		272	struct ev_loop *ev_default_loop_ptr;
227		273
228	#else	274	#else
229		275
		276	ev_tstamp ev_rt_now;
230	# define VAR(name,decl) static decl;	277	#define VAR(name,decl) static decl;
231	# include "ev_vars.h"	278	#include "ev_vars.h"
232	# undef VAR	279	#undef VAR
		280
		281	static int ev_default_loop_ptr;
233		282
234	#endif	283	#endif
235		284
236	/*****************************************************************************/	285	/*****************************************************************************/
237		286
238	inline ev_tstamp	287	ev_tstamp
239	ev_time (void)	288	ev_time (void)
240	{	289	{
241	#if EV_USE_REALTIME	290	#if EV_USE_REALTIME
242	struct timespec ts;	291	struct timespec ts;
243	clock_gettime (CLOCK_REALTIME, &ts);	292	clock_gettime (CLOCK_REALTIME, &ts);
…		…
262	#endif	311	#endif
263		312
264	return ev_time ();	313	return ev_time ();
265	}	314	}
266		315
		316	#if EV_MULTIPLICITY
267	ev_tstamp	317	ev_tstamp
268	ev_now (EV_P)	318	ev_now (EV_P)
269	{	319	{
270	return rt_now;	320	return ev_rt_now;
271	}	321	}
		322	#endif
272		323
273	#define array_roundsize(type,n) ((n) \| 4 & ~3)	324	#define array_roundsize(type,n) (((n) \| 4) & ~3)
274		325
275	#define array_needsize(type,base,cur,cnt,init) \	326	#define array_needsize(type,base,cur,cnt,init) \
276	if (expect_false ((cnt) > cur)) \	327	if (expect_false ((cnt) > cur)) \
277	{ \	328	{ \
278	int newcnt = cur; \	329	int newcnt = cur; \
…		…
293	stem ## max = array_roundsize (stem ## cnt >> 1); \	344	stem ## max = array_roundsize (stem ## cnt >> 1); \
294	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\	345	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
295	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	346	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
296	}	347	}
297		348
298	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
299	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
300	#define array_free_microshit(stem) \
301	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
302
303	#define array_free(stem, idx) \	349	#define array_free(stem, idx) \
304	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	350	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
305		351
306	/*****************************************************************************/	352	/*****************************************************************************/
307		353
…		…
316		362
317	++base;	363	++base;
318	}	364	}
319	}	365	}
320		366
321	static void	367	void
322	event (EV_P_ W w, int events)	368	ev_feed_event (EV_P_ void *w, int revents)
323	{	369	{
		370	W w_ = (W)w;
		371
324	if (w->pending)	372	if (w_->pending)
325	{	373	{
326	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	374	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
327	return;	375	return;
328	}	376	}
329		377
330	w->pending = ++pendingcnt [ABSPRI (w)];	378	w_->pending = ++pendingcnt [ABSPRI (w_)];
331	array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));	379	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
332	pendings [ABSPRI (w)][w->pending - 1].w = w;	380	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
333	pendings [ABSPRI (w)][w->pending - 1].events = events;	381	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
334	}	382	}
335		383
336	static void	384	static void
337	queue_events (EV_P_ W *events, int eventcnt, int type)	385	queue_events (EV_P_ W *events, int eventcnt, int type)
338	{	386	{
339	int i;	387	int i;
340		388
341	for (i = 0; i < eventcnt; ++i)	389	for (i = 0; i < eventcnt; ++i)
342	event (EV_A_ events [i], type);	390	ev_feed_event (EV_A_ events [i], type);
343	}	391	}
344		392
345	static void	393	inline void
346	fd_event (EV_P_ int fd, int events)	394	fd_event (EV_P_ int fd, int revents)
347	{	395	{
348	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
349	struct ev_io *w;	397	struct ev_io *w;
350		398
351	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	399	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
352	{	400	{
353	int ev = w->events & events;	401	int ev = w->events & revents;
354		402
355	if (ev)	403	if (ev)
356	event (EV_A_ (W)w, ev);	404	ev_feed_event (EV_A_ (W)w, ev);
357	}	405	}
		406	}
		407
		408	void
		409	ev_feed_fd_event (EV_P_ int fd, int revents)
		410	{
		411	fd_event (EV_A_ fd, revents);
358	}	412	}
359		413
360	/*****************************************************************************/	414	/*****************************************************************************/
361		415
362	static void	416	static void
…		…
373	int events = 0;	427	int events = 0;
374		428
375	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	429	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
376	events \|= w->events;	430	events \|= w->events;
377		431
		432	#if EV_SELECT_IS_WINSOCKET
		433	if (events)
		434	{
		435	unsigned long argp;
		436	anfd->handle = _get_osfhandle (fd);
		437	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		438	}
		439	#endif
		440
378	anfd->reify = 0;	441	anfd->reify = 0;
379		442
380	method_modify (EV_A_ fd, anfd->events, events);	443	method_modify (EV_A_ fd, anfd->events, events);
381	anfd->events = events;	444	anfd->events = events;
382	}	445	}
…		…
391	return;	454	return;
392		455
393	anfds [fd].reify = 1;	456	anfds [fd].reify = 1;
394		457
395	++fdchangecnt;	458	++fdchangecnt;
396	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));	459	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
397	fdchanges [fdchangecnt - 1] = fd;	460	fdchanges [fdchangecnt - 1] = fd;
398	}	461	}
399		462
400	static void	463	static void
401	fd_kill (EV_P_ int fd)	464	fd_kill (EV_P_ int fd)
…		…
403	struct ev_io *w;	466	struct ev_io *w;
404		467
405	while ((w = (struct ev_io *)anfds [fd].head))	468	while ((w = (struct ev_io *)anfds [fd].head))
406	{	469	{
407	ev_io_stop (EV_A_ w);	470	ev_io_stop (EV_A_ w);
408	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	471	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
409	}	472	}
410	}	473	}
411		474
412	static int	475	static int
413	fd_valid (int fd)	476	fd_valid (int fd)
414	{	477	{
415	#ifdef WIN32	478	#ifdef _WIN32
416	return !!win32_get_osfhandle (fd);	479	return _get_osfhandle (fd) != -1;
417	#else	480	#else
418	return fcntl (fd, F_GETFD) != -1;	481	return fcntl (fd, F_GETFD) != -1;
419	#endif	482	#endif
420	}	483	}
421		484
…		…
501		564
502	heap [k] = w;	565	heap [k] = w;
503	((W)heap [k])->active = k + 1;	566	((W)heap [k])->active = k + 1;
504	}	567	}
505		568
		569	inline void
		570	adjustheap (WT *heap, int N, int k)
		571	{
		572	upheap (heap, k);
		573	downheap (heap, N, k);
		574	}
		575
506	/*****************************************************************************/	576	/*****************************************************************************/
507		577
508	typedef struct	578	typedef struct
509	{	579	{
510	WL head;	580	WL head;
…		…
531	}	601	}
532		602
533	static void	603	static void
534	sighandler (int signum)	604	sighandler (int signum)
535	{	605	{
536	#if WIN32	606	#if _WIN32
537	signal (signum, sighandler);	607	signal (signum, sighandler);
538	#endif	608	#endif
539		609
540	signals [signum - 1].gotsig = 1;	610	signals [signum - 1].gotsig = 1;
541		611
542	if (!gotsig)	612	if (!gotsig)
543	{	613	{
544	int old_errno = errno;	614	int old_errno = errno;
545	gotsig = 1;	615	gotsig = 1;
546	#ifdef WIN32
547	send (sigpipe [1], &signum, 1, MSG_DONTWAIT);
548	#else
549	write (sigpipe [1], &signum, 1);	616	write (sigpipe [1], &signum, 1);
550	#endif
551	errno = old_errno;	617	errno = old_errno;
552	}	618	}
553	}	619	}
554		620
		621	void
		622	ev_feed_signal_event (EV_P_ int signum)
		623	{
		624	WL w;
		625
		626	#if EV_MULTIPLICITY
		627	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		628	#endif
		629
		630	--signum;
		631
		632	if (signum < 0 \|\| signum >= signalmax)
		633	return;
		634
		635	signals [signum].gotsig = 0;
		636
		637	for (w = signals [signum].head; w; w = w->next)
		638	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		639	}
		640
555	static void	641	static void
556	sigcb (EV_P_ struct ev_io *iow, int revents)	642	sigcb (EV_P_ struct ev_io *iow, int revents)
557	{	643	{
558	WL w;
559	int signum;	644	int signum;
560		645
561	#ifdef WIN32
562	recv (sigpipe [0], &revents, 1, MSG_DONTWAIT);
563	#else
564	read (sigpipe [0], &revents, 1);	646	read (sigpipe [0], &revents, 1);
565	#endif
566	gotsig = 0;	647	gotsig = 0;
567		648
568	for (signum = signalmax; signum--; )	649	for (signum = signalmax; signum--; )
569	if (signals [signum].gotsig)	650	if (signals [signum].gotsig)
570	{	651	ev_feed_signal_event (EV_A_ signum + 1);
571	signals [signum].gotsig = 0;	652	}
572		653
573	for (w = signals [signum].head; w; w = w->next)	654	inline void
574	event (EV_A_ (W)w, EV_SIGNAL);	655	fd_intern (int fd)
575	}	656	{
		657	#ifdef _WIN32
		658	int arg = 1;
		659	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		660	#else
		661	fcntl (fd, F_SETFD, FD_CLOEXEC);
		662	fcntl (fd, F_SETFL, O_NONBLOCK);
		663	#endif
576	}	664	}
577		665
578	static void	666	static void
579	siginit (EV_P)	667	siginit (EV_P)
580	{	668	{
581	#ifndef WIN32	669	fd_intern (sigpipe [0]);
582	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	670	fd_intern (sigpipe [1]);
583	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
584
585	/* rather than sort out wether we really need nb, set it */
586	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
587	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
588	#endif
589		671
590	ev_io_set (&sigev, sigpipe [0], EV_READ);	672	ev_io_set (&sigev, sigpipe [0], EV_READ);
591	ev_io_start (EV_A_ &sigev);	673	ev_io_start (EV_A_ &sigev);
592	ev_unref (EV_A); /* child watcher should not keep loop alive */	674	ev_unref (EV_A); /* child watcher should not keep loop alive */
593	}	675	}
594		676
595	/*****************************************************************************/	677	/*****************************************************************************/
596		678
597	static struct ev_child *childs [PID_HASHSIZE];	679	static struct ev_child *childs [PID_HASHSIZE];
598		680
599	#ifndef WIN32	681	#ifndef _WIN32
600		682
601	static struct ev_signal childev;	683	static struct ev_signal childev;
602		684
603	#ifndef WCONTINUED	685	#ifndef WCONTINUED
604	# define WCONTINUED 0	686	# define WCONTINUED 0
…		…
613	if (w->pid == pid \|\| !w->pid)	695	if (w->pid == pid \|\| !w->pid)
614	{	696	{
615	ev_priority (w) = ev_priority (sw); /* need to do it now */	697	ev_priority (w) = ev_priority (sw); /* need to do it now */
616	w->rpid = pid;	698	w->rpid = pid;
617	w->rstatus = status;	699	w->rstatus = status;
618	event (EV_A_ (W)w, EV_CHILD);	700	ev_feed_event (EV_A_ (W)w, EV_CHILD);
619	}	701	}
620	}	702	}
621		703
622	static void	704	static void
623	childcb (EV_P_ struct ev_signal *sw, int revents)	705	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
625	int pid, status;	707	int pid, status;
626		708
627	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	709	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
628	{	710	{
629	/* make sure we are called again until all childs have been reaped */	711	/* make sure we are called again until all childs have been reaped */
630	event (EV_A_ (W)sw, EV_SIGNAL);	712	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
631		713
632	child_reap (EV_A_ sw, pid, pid, status);	714	child_reap (EV_A_ sw, pid, pid, status);
633	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	715	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
634	}	716	}
635	}	717	}
636		718
637	#endif	719	#endif
638		720
639	/*****************************************************************************/	721	/*****************************************************************************/
640		722
		723	#if EV_USE_PORT
		724	# include "ev_port.c"
		725	#endif
641	#if EV_USE_KQUEUE	726	#if EV_USE_KQUEUE
642	# include "ev_kqueue.c"	727	# include "ev_kqueue.c"
643	#endif	728	#endif
644	#if EV_USE_EPOLL	729	#if EV_USE_EPOLL
645	# include "ev_epoll.c"	730	# include "ev_epoll.c"
…		…
665		750
666	/* return true if we are running with elevated privileges and should ignore env variables */	751	/* return true if we are running with elevated privileges and should ignore env variables */
667	static int	752	static int
668	enable_secure (void)	753	enable_secure (void)
669	{	754	{
670	#ifdef WIN32	755	#ifdef _WIN32
671	return 0;	756	return 0;
672	#else	757	#else
673	return getuid () != geteuid ()	758	return getuid () != geteuid ()
674	\|\| getgid () != getegid ();	759	\|\| getgid () != getegid ();
675	#endif	760	#endif
676	}	761	}
677		762
678	int	763	unsigned int
679	ev_method (EV_P)	764	ev_method (EV_P)
680	{	765	{
681	return method;	766	return method;
682	}	767	}
683		768
684	static void	769	static void
685	loop_init (EV_P_ int methods)	770	loop_init (EV_P_ unsigned int flags)
686	{	771	{
687	if (!method)	772	if (!method)
688	{	773	{
689	#if EV_USE_MONOTONIC	774	#if EV_USE_MONOTONIC
690	{	775	{
…		…
692	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	777	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
693	have_monotonic = 1;	778	have_monotonic = 1;
694	}	779	}
695	#endif	780	#endif
696		781
697	rt_now = ev_time ();	782	ev_rt_now = ev_time ();
698	mn_now = get_clock ();	783	mn_now = get_clock ();
699	now_floor = mn_now;	784	now_floor = mn_now;
700	rtmn_diff = rt_now - mn_now;	785	rtmn_diff = ev_rt_now - mn_now;
701		786
702	if (methods == EVMETHOD_AUTO)	787	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
703	if (!enable_secure () && getenv ("LIBEV_METHODS"))
704	methods = atoi (getenv ("LIBEV_METHODS"));	788	flags = atoi (getenv ("LIBEV_FLAGS"));
705	else	789
706	methods = EVMETHOD_ANY;	790	if (!(flags & 0x0000ffff))
		791	flags \|= 0x0000ffff;
707		792
708	method = 0;	793	method = 0;
709	#if EV_USE_WIN32	794	#if EV_USE_PORT
710	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	795	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
711	#endif	796	#endif
712	#if EV_USE_KQUEUE	797	#if EV_USE_KQUEUE
713	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	798	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
714	#endif	799	#endif
715	#if EV_USE_EPOLL	800	#if EV_USE_EPOLL
716	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	801	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
717	#endif	802	#endif
718	#if EV_USE_POLL	803	#if EV_USE_POLL
719	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	804	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
720	#endif	805	#endif
721	#if EV_USE_SELECT	806	#if EV_USE_SELECT
722	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	807	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
723	#endif	808	#endif
724		809
725	ev_watcher_init (&sigev, sigcb);	810	ev_init (&sigev, sigcb);
726	ev_set_priority (&sigev, EV_MAXPRI);	811	ev_set_priority (&sigev, EV_MAXPRI);
727	}	812	}
728	}	813	}
729		814
730	void	815	void
731	loop_destroy (EV_P)	816	loop_destroy (EV_P)
732	{	817	{
733	int i;	818	int i;
734		819
735	#if EV_USE_WIN32	820	#if EV_USE_PORT
736	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	821	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
737	#endif	822	#endif
738	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
739	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	824	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
740	#endif	825	#endif
741	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
…		…
750		835
751	for (i = NUMPRI; i--; )	836	for (i = NUMPRI; i--; )
752	array_free (pending, [i]);	837	array_free (pending, [i]);
753		838
754	/* have to use the microsoft-never-gets-it-right macro */	839	/* have to use the microsoft-never-gets-it-right macro */
755	array_free_microshit (fdchange);	840	array_free (fdchange, EMPTY0);
756	array_free_microshit (timer);	841	array_free (timer, EMPTY0);
757	array_free_microshit (periodic);	842	#if EV_PERIODICS
758	array_free_microshit (idle);	843	array_free (periodic, EMPTY0);
759	array_free_microshit (prepare);	844	#endif
760	array_free_microshit (check);	845	array_free (idle, EMPTY0);
		846	array_free (prepare, EMPTY0);
		847	array_free (check, EMPTY0);
761		848
762	method = 0;	849	method = 0;
763	}	850	}
764		851
765	static void	852	static void
766	loop_fork (EV_P)	853	loop_fork (EV_P)
767	{	854	{
		855	#if EV_USE_PORT
		856	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		857	#endif
		858	#if EV_USE_KQUEUE
		859	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		860	#endif
768	#if EV_USE_EPOLL	861	#if EV_USE_EPOLL
769	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	862	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
770	#endif
771	#if EV_USE_KQUEUE
772	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
773	#endif	863	#endif
774		864
775	if (ev_is_active (&sigev))	865	if (ev_is_active (&sigev))
776	{	866	{
777	/* default loop */	867	/* default loop */
…		…
790	postfork = 0;	880	postfork = 0;
791	}	881	}
792		882
793	#if EV_MULTIPLICITY	883	#if EV_MULTIPLICITY
794	struct ev_loop *	884	struct ev_loop *
795	ev_loop_new (int methods)	885	ev_loop_new (unsigned int flags)
796	{	886	{
797	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));	887	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
798		888
799	memset (loop, 0, sizeof (struct ev_loop));	889	memset (loop, 0, sizeof (struct ev_loop));
800		890
801	loop_init (EV_A_ methods);	891	loop_init (EV_A_ flags);
802		892
803	if (ev_method (EV_A))	893	if (ev_method (EV_A))
804	return loop;	894	return loop;
805		895
806	return 0;	896	return 0;
…		…
820	}	910	}
821		911
822	#endif	912	#endif
823		913
824	#if EV_MULTIPLICITY	914	#if EV_MULTIPLICITY
825	struct ev_loop default_loop_struct;
826	static struct ev_loop *default_loop;
827
828	struct ev_loop *	915	struct ev_loop *
		916	ev_default_loop_ (unsigned int flags)
829	#else	917	#else
830	static int default_loop;
831
832	int	918	int
		919	ev_default_loop (unsigned int flags)
833	#endif	920	#endif
834	ev_default_loop (int methods)
835	{	921	{
836	if (sigpipe [0] == sigpipe [1])	922	if (sigpipe [0] == sigpipe [1])
837	if (pipe (sigpipe))	923	if (pipe (sigpipe))
838	return 0;	924	return 0;
839		925
840	if (!default_loop)	926	if (!ev_default_loop_ptr)
841	{	927	{
842	#if EV_MULTIPLICITY	928	#if EV_MULTIPLICITY
843	struct ev_loop *loop = default_loop = &default_loop_struct;	929	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
844	#else	930	#else
845	default_loop = 1;	931	ev_default_loop_ptr = 1;
846	#endif	932	#endif
847		933
848	loop_init (EV_A_ methods);	934	loop_init (EV_A_ flags);
849		935
850	if (ev_method (EV_A))	936	if (ev_method (EV_A))
851	{	937	{
852	siginit (EV_A);	938	siginit (EV_A);
853		939
854	#ifndef WIN32	940	#ifndef _WIN32
855	ev_signal_init (&childev, childcb, SIGCHLD);	941	ev_signal_init (&childev, childcb, SIGCHLD);
856	ev_set_priority (&childev, EV_MAXPRI);	942	ev_set_priority (&childev, EV_MAXPRI);
857	ev_signal_start (EV_A_ &childev);	943	ev_signal_start (EV_A_ &childev);
858	ev_unref (EV_A); /* child watcher should not keep loop alive */	944	ev_unref (EV_A); /* child watcher should not keep loop alive */
859	#endif	945	#endif
860	}	946	}
861	else	947	else
862	default_loop = 0;	948	ev_default_loop_ptr = 0;
863	}	949	}
864		950
865	return default_loop;	951	return ev_default_loop_ptr;
866	}	952	}
867		953
868	void	954	void
869	ev_default_destroy (void)	955	ev_default_destroy (void)
870	{	956	{
871	#if EV_MULTIPLICITY	957	#if EV_MULTIPLICITY
872	struct ev_loop *loop = default_loop;	958	struct ev_loop *loop = ev_default_loop_ptr;
873	#endif	959	#endif
874		960
875	#ifndef WIN32	961	#ifndef _WIN32
876	ev_ref (EV_A); /* child watcher */	962	ev_ref (EV_A); /* child watcher */
877	ev_signal_stop (EV_A_ &childev);	963	ev_signal_stop (EV_A_ &childev);
878	#endif	964	#endif
879		965
880	ev_ref (EV_A); /* signal watcher */	966	ev_ref (EV_A); /* signal watcher */
…		…
888		974
889	void	975	void
890	ev_default_fork (void)	976	ev_default_fork (void)
891	{	977	{
892	#if EV_MULTIPLICITY	978	#if EV_MULTIPLICITY
893	struct ev_loop *loop = default_loop;	979	struct ev_loop *loop = ev_default_loop_ptr;
894	#endif	980	#endif
895		981
896	if (method)	982	if (method)
897	postfork = 1;	983	postfork = 1;
898	}	984	}
899		985
900	/*****************************************************************************/	986	/*****************************************************************************/
		987
		988	static int
		989	any_pending (EV_P)
		990	{
		991	int pri;
		992
		993	for (pri = NUMPRI; pri--; )
		994	if (pendingcnt [pri])
		995	return 1;
		996
		997	return 0;
		998	}
901		999
902	static void	1000	static void
903	call_pending (EV_P)	1001	call_pending (EV_P)
904	{	1002	{
905	int pri;	1003	int pri;
…		…
910	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1008	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
911		1009
912	if (p->w)	1010	if (p->w)
913	{	1011	{
914	p->w->pending = 0;	1012	p->w->pending = 0;
915	p->w->cb (EV_A_ p->w, p->events);	1013	EV_CB_INVOKE (p->w, p->events);
916	}	1014	}
917	}	1015	}
918	}	1016	}
919		1017
920	static void	1018	static void
…		…
928		1026
929	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
930	if (w->repeat)	1028	if (w->repeat)
931	{	1029	{
932	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1030	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1031
933	((WT)w)->at = mn_now + w->repeat;	1032	((WT)w)->at += w->repeat;
		1033	if (((WT)w)->at < mn_now)
		1034	((WT)w)->at = mn_now;
		1035
934	downheap ((WT *)timers, timercnt, 0);	1036	downheap ((WT *)timers, timercnt, 0);
935	}	1037	}
936	else	1038	else
937	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
938		1040
939	event (EV_A_ (W)w, EV_TIMEOUT);	1041	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
940	}	1042	}
941	}	1043	}
942		1044
		1045	#if EV_PERIODICS
943	static void	1046	static void
944	periodics_reify (EV_P)	1047	periodics_reify (EV_P)
945	{	1048	{
946	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1049	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
947	{	1050	{
948	struct ev_periodic *w = periodics [0];	1051	struct ev_periodic *w = periodics [0];
949		1052
950	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1053	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
951		1054
952	/* first reschedule or stop timer */	1055	/* first reschedule or stop timer */
953	if (w->interval)	1056	if (w->reschedule_cb)
954	{	1057	{
		1058	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1059	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1060	downheap ((WT *)periodics, periodiccnt, 0);
		1061	}
		1062	else if (w->interval)
		1063	{
955	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1064	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
956	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1065	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
957	downheap ((WT *)periodics, periodiccnt, 0);	1066	downheap ((WT *)periodics, periodiccnt, 0);
958	}	1067	}
959	else	1068	else
960	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1069	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
961		1070
962	event (EV_A_ (W)w, EV_PERIODIC);	1071	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
963	}	1072	}
964	}	1073	}
965		1074
966	static void	1075	static void
967	periodics_reschedule (EV_P)	1076	periodics_reschedule (EV_P)
…		…
971	/* adjust periodics after time jump */	1080	/* adjust periodics after time jump */
972	for (i = 0; i < periodiccnt; ++i)	1081	for (i = 0; i < periodiccnt; ++i)
973	{	1082	{
974	struct ev_periodic *w = periodics [i];	1083	struct ev_periodic *w = periodics [i];
975		1084
		1085	if (w->reschedule_cb)
		1086	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
976	if (w->interval)	1087	else if (w->interval)
977	{
978	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1088	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
979
980	if (fabs (diff) >= 1e-4)
981	{
982	ev_periodic_stop (EV_A_ w);
983	ev_periodic_start (EV_A_ w);
984
985	i = 0; /* restart loop, inefficient, but time jumps should be rare */
986	}
987	}
988	}	1089	}
		1090
		1091	/* now rebuild the heap */
		1092	for (i = periodiccnt >> 1; i--; )
		1093	downheap ((WT *)periodics, periodiccnt, i);
989	}	1094	}
		1095	#endif
990		1096
991	inline int	1097	inline int
992	time_update_monotonic (EV_P)	1098	time_update_monotonic (EV_P)
993	{	1099	{
994	mn_now = get_clock ();	1100	mn_now = get_clock ();
995		1101
996	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1102	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
997	{	1103	{
998	rt_now = rtmn_diff + mn_now;	1104	ev_rt_now = rtmn_diff + mn_now;
999	return 0;	1105	return 0;
1000	}	1106	}
1001	else	1107	else
1002	{	1108	{
1003	now_floor = mn_now;	1109	now_floor = mn_now;
1004	rt_now = ev_time ();	1110	ev_rt_now = ev_time ();
1005	return 1;	1111	return 1;
1006	}	1112	}
1007	}	1113	}
1008		1114
1009	static void	1115	static void
…		…
1018	{	1124	{
1019	ev_tstamp odiff = rtmn_diff;	1125	ev_tstamp odiff = rtmn_diff;
1020		1126
1021	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1127	for (i = 4; --i; ) /* loop a few times, before making important decisions */
1022	{	1128	{
1023	rtmn_diff = rt_now - mn_now;	1129	rtmn_diff = ev_rt_now - mn_now;
1024		1130
1025	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1131	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1026	return; /* all is well */	1132	return; /* all is well */
1027		1133
1028	rt_now = ev_time ();	1134	ev_rt_now = ev_time ();
1029	mn_now = get_clock ();	1135	mn_now = get_clock ();
1030	now_floor = mn_now;	1136	now_floor = mn_now;
1031	}	1137	}
1032		1138
		1139	# if EV_PERIODICS
1033	periodics_reschedule (EV_A);	1140	periodics_reschedule (EV_A);
		1141	# endif
1034	/* no timer adjustment, as the monotonic clock doesn't jump */	1142	/* no timer adjustment, as the monotonic clock doesn't jump */
1035	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1143	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1036	}	1144	}
1037	}	1145	}
1038	else	1146	else
1039	#endif	1147	#endif
1040	{	1148	{
1041	rt_now = ev_time ();	1149	ev_rt_now = ev_time ();
1042		1150
1043	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1151	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
1044	{	1152	{
		1153	#if EV_PERIODICS
1045	periodics_reschedule (EV_A);	1154	periodics_reschedule (EV_A);
		1155	#endif
1046		1156
1047	/* adjust timers. this is easy, as the offset is the same for all */	1157	/* adjust timers. this is easy, as the offset is the same for all */
1048	for (i = 0; i < timercnt; ++i)	1158	for (i = 0; i < timercnt; ++i)
1049	((WT)timers [i])->at += rt_now - mn_now;	1159	((WT)timers [i])->at += ev_rt_now - mn_now;
1050	}	1160	}
1051		1161
1052	mn_now = rt_now;	1162	mn_now = ev_rt_now;
1053	}	1163	}
1054	}	1164	}
1055		1165
1056	void	1166	void
1057	ev_ref (EV_P)	1167	ev_ref (EV_P)
…		…
1071	ev_loop (EV_P_ int flags)	1181	ev_loop (EV_P_ int flags)
1072	{	1182	{
1073	double block;	1183	double block;
1074	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1184	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1075		1185
1076	do	1186	while (activecnt)
1077	{	1187	{
1078	/* queue check watchers (and execute them) */	1188	/* queue check watchers (and execute them) */
1079	if (expect_false (preparecnt))	1189	if (expect_false (preparecnt))
1080	{	1190	{
1081	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1191	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1089	/* update fd-related kernel structures */	1199	/* update fd-related kernel structures */
1090	fd_reify (EV_A);	1200	fd_reify (EV_A);
1091		1201
1092	/* calculate blocking time */	1202	/* calculate blocking time */
1093		1203
1094	/* we only need this for !monotonic clockor timers, but as we basically	1204	/* we only need this for !monotonic clock or timers, but as we basically
1095	always have timers, we just calculate it always */	1205	always have timers, we just calculate it always */
1096	#if EV_USE_MONOTONIC	1206	#if EV_USE_MONOTONIC
1097	if (expect_true (have_monotonic))	1207	if (expect_true (have_monotonic))
1098	time_update_monotonic (EV_A);	1208	time_update_monotonic (EV_A);
1099	else	1209	else
1100	#endif	1210	#endif
1101	{	1211	{
1102	rt_now = ev_time ();	1212	ev_rt_now = ev_time ();
1103	mn_now = rt_now;	1213	mn_now = ev_rt_now;
1104	}	1214	}
1105		1215
1106	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1216	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1107	block = 0.;	1217	block = 0.;
1108	else	1218	else
…		…
1113	{	1223	{
1114	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1224	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1115	if (block > to) block = to;	1225	if (block > to) block = to;
1116	}	1226	}
1117		1227
		1228	#if EV_PERIODICS
1118	if (periodiccnt)	1229	if (periodiccnt)
1119	{	1230	{
1120	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1231	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1121	if (block > to) block = to;	1232	if (block > to) block = to;
1122	}	1233	}
		1234	#endif
1123		1235
1124	if (block < 0.) block = 0.;	1236	if (block < 0.) block = 0.;
1125	}	1237	}
1126		1238
1127	method_poll (EV_A_ block);	1239	method_poll (EV_A_ block);
1128		1240
1129	/* update rt_now, do magic */	1241	/* update ev_rt_now, do magic */
1130	time_update (EV_A);	1242	time_update (EV_A);
1131		1243
1132	/* queue pending timers and reschedule them */	1244	/* queue pending timers and reschedule them */
1133	timers_reify (EV_A); /* relative timers called last */	1245	timers_reify (EV_A); /* relative timers called last */
		1246	#if EV_PERIODICS
1134	periodics_reify (EV_A); /* absolute timers called first */	1247	periodics_reify (EV_A); /* absolute timers called first */
		1248	#endif
1135		1249
1136	/* queue idle watchers unless io or timers are pending */	1250	/* queue idle watchers unless io or timers are pending */
1137	if (!pendingcnt)	1251	if (idlecnt && !any_pending (EV_A))
1138	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1252	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1139		1253
1140	/* queue check watchers, to be executed first */	1254	/* queue check watchers, to be executed first */
1141	if (checkcnt)	1255	if (checkcnt)
1142	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1256	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1143		1257
1144	call_pending (EV_A);	1258	call_pending (EV_A);
		1259
		1260	if (loop_done)
		1261	break;
1145	}	1262	}
1146	while (activecnt && !loop_done);
1147		1263
1148	if (loop_done != 2)	1264	if (loop_done != 2)
1149	loop_done = 0;	1265	loop_done = 0;
1150	}	1266	}
1151		1267
…		…
1230	{	1346	{
1231	ev_clear_pending (EV_A_ (W)w);	1347	ev_clear_pending (EV_A_ (W)w);
1232	if (!ev_is_active (w))	1348	if (!ev_is_active (w))
1233	return;	1349	return;
1234		1350
		1351	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1352
1235	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1353	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1236	ev_stop (EV_A_ (W)w);	1354	ev_stop (EV_A_ (W)w);
1237		1355
1238	fd_change (EV_A_ w->fd);	1356	fd_change (EV_A_ w->fd);
1239	}	1357	}
…		…
1247	((WT)w)->at += mn_now;	1365	((WT)w)->at += mn_now;
1248		1366
1249	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1367	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1250		1368
1251	ev_start (EV_A_ (W)w, ++timercnt);	1369	ev_start (EV_A_ (W)w, ++timercnt);
1252	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));	1370	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1253	timers [timercnt - 1] = w;	1371	timers [timercnt - 1] = w;
1254	upheap ((WT *)timers, timercnt - 1);	1372	upheap ((WT *)timers, timercnt - 1);
1255		1373
1256	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1374	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1257	}	1375	}
…		…
1266	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1384	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1267		1385
1268	if (((W)w)->active < timercnt--)	1386	if (((W)w)->active < timercnt--)
1269	{	1387	{
1270	timers [((W)w)->active - 1] = timers [timercnt];	1388	timers [((W)w)->active - 1] = timers [timercnt];
1271	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1389	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1272	}	1390	}
1273		1391
1274	((WT)w)->at = w->repeat;	1392	((WT)w)->at -= mn_now;
1275		1393
1276	ev_stop (EV_A_ (W)w);	1394	ev_stop (EV_A_ (W)w);
1277	}	1395	}
1278		1396
1279	void	1397	void
…		…
1282	if (ev_is_active (w))	1400	if (ev_is_active (w))
1283	{	1401	{
1284	if (w->repeat)	1402	if (w->repeat)
1285	{	1403	{
1286	((WT)w)->at = mn_now + w->repeat;	1404	((WT)w)->at = mn_now + w->repeat;
1287	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1288	}	1406	}
1289	else	1407	else
1290	ev_timer_stop (EV_A_ w);	1408	ev_timer_stop (EV_A_ w);
1291	}	1409	}
1292	else if (w->repeat)	1410	else if (w->repeat)
		1411	{
		1412	w->at = w->repeat;
1293	ev_timer_start (EV_A_ w);	1413	ev_timer_start (EV_A_ w);
		1414	}
1294	}	1415	}
1295		1416
		1417	#if EV_PERIODICS
1296	void	1418	void
1297	ev_periodic_start (EV_P_ struct ev_periodic *w)	1419	ev_periodic_start (EV_P_ struct ev_periodic *w)
1298	{	1420	{
1299	if (ev_is_active (w))	1421	if (ev_is_active (w))
1300	return;	1422	return;
1301		1423
		1424	if (w->reschedule_cb)
		1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1426	else if (w->interval)
		1427	{
1302	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1428	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1303
1304	/* this formula differs from the one in periodic_reify because we do not always round up */	1429	/* this formula differs from the one in periodic_reify because we do not always round up */
1305	if (w->interval)
1306	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1430	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1431	}
1307		1432
1308	ev_start (EV_A_ (W)w, ++periodiccnt);	1433	ev_start (EV_A_ (W)w, ++periodiccnt);
1309	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));	1434	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1310	periodics [periodiccnt - 1] = w;	1435	periodics [periodiccnt - 1] = w;
1311	upheap ((WT *)periodics, periodiccnt - 1);	1436	upheap ((WT *)periodics, periodiccnt - 1);
1312		1437
1313	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1438	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1314	}	1439	}
…		…
1323	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1448	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1324		1449
1325	if (((W)w)->active < periodiccnt--)	1450	if (((W)w)->active < periodiccnt--)
1326	{	1451	{
1327	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1452	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1328	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1453	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1329	}	1454	}
1330		1455
1331	ev_stop (EV_A_ (W)w);	1456	ev_stop (EV_A_ (W)w);
1332	}	1457	}
1333		1458
1334	void	1459	void
		1460	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1461	{
		1462	/* TODO: use adjustheap and recalculation */
		1463	ev_periodic_stop (EV_A_ w);
		1464	ev_periodic_start (EV_A_ w);
		1465	}
		1466	#endif
		1467
		1468	void
1335	ev_idle_start (EV_P_ struct ev_idle *w)	1469	ev_idle_start (EV_P_ struct ev_idle *w)
1336	{	1470	{
1337	if (ev_is_active (w))	1471	if (ev_is_active (w))
1338	return;	1472	return;
1339		1473
1340	ev_start (EV_A_ (W)w, ++idlecnt);	1474	ev_start (EV_A_ (W)w, ++idlecnt);
1341	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));	1475	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1342	idles [idlecnt - 1] = w;	1476	idles [idlecnt - 1] = w;
1343	}	1477	}
1344		1478
1345	void	1479	void
1346	ev_idle_stop (EV_P_ struct ev_idle *w)	1480	ev_idle_stop (EV_P_ struct ev_idle *w)
1347	{	1481	{
1348	ev_clear_pending (EV_A_ (W)w);	1482	ev_clear_pending (EV_A_ (W)w);
1349	if (ev_is_active (w))	1483	if (!ev_is_active (w))
1350	return;	1484	return;
1351		1485
1352	idles [((W)w)->active - 1] = idles [--idlecnt];	1486	idles [((W)w)->active - 1] = idles [--idlecnt];
1353	ev_stop (EV_A_ (W)w);	1487	ev_stop (EV_A_ (W)w);
1354	}	1488	}
…		…
1358	{	1492	{
1359	if (ev_is_active (w))	1493	if (ev_is_active (w))
1360	return;	1494	return;
1361		1495
1362	ev_start (EV_A_ (W)w, ++preparecnt);	1496	ev_start (EV_A_ (W)w, ++preparecnt);
1363	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));	1497	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1364	prepares [preparecnt - 1] = w;	1498	prepares [preparecnt - 1] = w;
1365	}	1499	}
1366		1500
1367	void	1501	void
1368	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1502	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1369	{	1503	{
1370	ev_clear_pending (EV_A_ (W)w);	1504	ev_clear_pending (EV_A_ (W)w);
1371	if (ev_is_active (w))	1505	if (!ev_is_active (w))
1372	return;	1506	return;
1373		1507
1374	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1508	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1375	ev_stop (EV_A_ (W)w);	1509	ev_stop (EV_A_ (W)w);
1376	}	1510	}
…		…
1380	{	1514	{
1381	if (ev_is_active (w))	1515	if (ev_is_active (w))
1382	return;	1516	return;
1383		1517
1384	ev_start (EV_A_ (W)w, ++checkcnt);	1518	ev_start (EV_A_ (W)w, ++checkcnt);
1385	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));	1519	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1386	checks [checkcnt - 1] = w;	1520	checks [checkcnt - 1] = w;
1387	}	1521	}
1388		1522
1389	void	1523	void
1390	ev_check_stop (EV_P_ struct ev_check *w)	1524	ev_check_stop (EV_P_ struct ev_check *w)
1391	{	1525	{
1392	ev_clear_pending (EV_A_ (W)w);	1526	ev_clear_pending (EV_A_ (W)w);
1393	if (ev_is_active (w))	1527	if (!ev_is_active (w))
1394	return;	1528	return;
1395		1529
1396	checks [((W)w)->active - 1] = checks [--checkcnt];	1530	checks [((W)w)->active - 1] = checks [--checkcnt];
1397	ev_stop (EV_A_ (W)w);	1531	ev_stop (EV_A_ (W)w);
1398	}	1532	}
…		…
1403		1537
1404	void	1538	void
1405	ev_signal_start (EV_P_ struct ev_signal *w)	1539	ev_signal_start (EV_P_ struct ev_signal *w)
1406	{	1540	{
1407	#if EV_MULTIPLICITY	1541	#if EV_MULTIPLICITY
1408	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1542	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1409	#endif	1543	#endif
1410	if (ev_is_active (w))	1544	if (ev_is_active (w))
1411	return;	1545	return;
1412		1546
1413	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1547	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
…		…
1416	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);	1550	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1417	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1551	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1418		1552
1419	if (!((WL)w)->next)	1553	if (!((WL)w)->next)
1420	{	1554	{
1421	#if WIN32	1555	#if _WIN32
1422	signal (w->signum, sighandler);	1556	signal (w->signum, sighandler);
1423	#else	1557	#else
1424	struct sigaction sa;	1558	struct sigaction sa;
1425	sa.sa_handler = sighandler;	1559	sa.sa_handler = sighandler;
1426	sigfillset (&sa.sa_mask);	1560	sigfillset (&sa.sa_mask);
…		…
1446		1580
1447	void	1581	void
1448	ev_child_start (EV_P_ struct ev_child *w)	1582	ev_child_start (EV_P_ struct ev_child *w)
1449	{	1583	{
1450	#if EV_MULTIPLICITY	1584	#if EV_MULTIPLICITY
1451	assert (("child watchers are only supported in the default loop", loop == default_loop));	1585	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1452	#endif	1586	#endif
1453	if (ev_is_active (w))	1587	if (ev_is_active (w))
1454	return;	1588	return;
1455		1589
1456	ev_start (EV_A_ (W)w, 1);	1590	ev_start (EV_A_ (W)w, 1);
…		…
1459		1593
1460	void	1594	void
1461	ev_child_stop (EV_P_ struct ev_child *w)	1595	ev_child_stop (EV_P_ struct ev_child *w)
1462	{	1596	{
1463	ev_clear_pending (EV_A_ (W)w);	1597	ev_clear_pending (EV_A_ (W)w);
1464	if (ev_is_active (w))	1598	if (!ev_is_active (w))
1465	return;	1599	return;
1466		1600
1467	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1601	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1468	ev_stop (EV_A_ (W)w);	1602	ev_stop (EV_A_ (W)w);
1469	}	1603	}
…		…
1513	else	1647	else
1514	{	1648	{
1515	once->cb = cb;	1649	once->cb = cb;
1516	once->arg = arg;	1650	once->arg = arg;
1517		1651
1518	ev_watcher_init (&once->io, once_cb_io);	1652	ev_init (&once->io, once_cb_io);
1519	if (fd >= 0)	1653	if (fd >= 0)
1520	{	1654	{
1521	ev_io_set (&once->io, fd, events);	1655	ev_io_set (&once->io, fd, events);
1522	ev_io_start (EV_A_ &once->io);	1656	ev_io_start (EV_A_ &once->io);
1523	}	1657	}
1524		1658
1525	ev_watcher_init (&once->to, once_cb_to);	1659	ev_init (&once->to, once_cb_to);
1526	if (timeout >= 0.)	1660	if (timeout >= 0.)
1527	{	1661	{
1528	ev_timer_set (&once->to, timeout, 0.);	1662	ev_timer_set (&once->to, timeout, 0.);
1529	ev_timer_start (EV_A_ &once->to);	1663	ev_timer_start (EV_A_ &once->to);
1530	}	1664	}
1531	}	1665	}
1532	}	1666	}
1533		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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Comparing libev/ev.c (file contents): Revision 1.75 by root, Tue Nov 6 19:29:20 2007 UTC vs. Revision 1.120 by root, Fri Nov 16 01:54:25 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.75 by root, Tue Nov 6 19:29:20 2007 UTC vs.
Revision 1.120 by root, Fri Nov 16 01:54:25 2007 UTC