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

Comparing libev/ev.c (file contents):
Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC vs.
Revision 1.119 by root, Fri Nov 16 01:43:52 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>
…		…
64	#include <assert.h>	77	#include <assert.h>
65	#include <errno.h>	78	#include <errno.h>
66	#include <sys/types.h>	79	#include <sys/types.h>
67	#include <time.h>	80	#include <time.h>
68		81
69	#ifndef PERL
70	# include <signal.h>	82	#include <signal.h>
71	#endif
72		83
73	#ifndef WIN32	84	#ifndef _WIN32
74	# include <unistd.h>	85	# include <unistd.h>
75	# include <sys/time.h>	86	# include <sys/time.h>
76	# 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
77	#endif	93	# endif
		94	#endif
		95
78	/**/	96	/**/
79		97
80	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
81	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 1
82	#endif	100	#endif
83		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 1
		104	#endif
		105
84	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
85	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
		108	# define EV_SELECT_USE_FD_SET 1
86	#endif	109	#endif
87		110
88	#ifndef EV_USE_POLL	111	#ifndef EV_USE_POLL
89	# 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
90	#endif	117	#endif
91		118
92	#ifndef EV_USE_EPOLL	119	#ifndef EV_USE_EPOLL
93	# define EV_USE_EPOLL 0	120	# define EV_USE_EPOLL 0
94	#endif	121	#endif
95		122
96	#ifndef EV_USE_KQUEUE	123	#ifndef EV_USE_KQUEUE
97	# define EV_USE_KQUEUE 0	124	# define EV_USE_KQUEUE 0
98	#endif	125	#endif
99		126
100	#ifndef EV_USE_WIN32
101	# ifdef WIN32
102	# define EV_USE_WIN32 0 /* it does not exist, use select */
103	# undef EV_USE_SELECT
104	# define EV_USE_SELECT 1
105	# else
106	# define EV_USE_WIN32 0
107	# endif
108	#endif
109
110	#ifndef EV_USE_REALTIME	127	#ifndef EV_USE_PORT
111	# define EV_USE_REALTIME 1	128	# define EV_USE_PORT 0
112	#endif	129	#endif
113		130
114	/**/	131	/**/
		132
		133	/* darwin simply cannot be helped */
		134	#ifdef __APPLE__
		135	# undef EV_USE_POLL
		136	# undef EV_USE_KQUEUE
		137	#endif
115		138
116	#ifndef CLOCK_MONOTONIC	139	#ifndef CLOCK_MONOTONIC
117	# undef EV_USE_MONOTONIC	140	# undef EV_USE_MONOTONIC
118	# define EV_USE_MONOTONIC 0	141	# define EV_USE_MONOTONIC 0
119	#endif	142	#endif
120		143
121	#ifndef CLOCK_REALTIME	144	#ifndef CLOCK_REALTIME
122	# undef EV_USE_REALTIME	145	# undef EV_USE_REALTIME
123	# define EV_USE_REALTIME 0	146	# define EV_USE_REALTIME 0
		147	#endif
		148
		149	#if EV_SELECT_IS_WINSOCKET
		150	# include <winsock.h>
124	#endif	151	#endif
125		152
126	/**/	153	/**/
127		154
128	#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) */
129	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	156	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
130	#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 */
131	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	158	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
132		159
		160	#ifdef EV_H
		161	# include EV_H
		162	#else
133	#include "ev.h"	163	# include "ev.h"
		164	#endif
134		165
135	#if __GNUC__ >= 3	166	#if __GNUC__ >= 3
136	# define expect(expr,value) __builtin_expect ((expr),(value))	167	# define expect(expr,value) __builtin_expect ((expr),(value))
137	# define inline inline	168	# define inline inline
138	#else	169	#else
…		…
144	#define expect_true(expr) expect ((expr) != 0, 1)	175	#define expect_true(expr) expect ((expr) != 0, 1)
145		176
146	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	177	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
147	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	178	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
148		179
		180	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		181	#define EMPTY2(a,b) /* used to suppress some warnings */
		182
149	typedef struct ev_watcher *W;	183	typedef struct ev_watcher *W;
150	typedef struct ev_watcher_list *WL;	184	typedef struct ev_watcher_list *WL;
151	typedef struct ev_watcher_time *WT;	185	typedef struct ev_watcher_time *WT;
152		186
153	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	187	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
154		188
155	#if WIN32	189	#ifdef _WIN32
156	/* note: the comment below could not be substantiated, but what would I care */	190	# include "ev_win32.c"
157	/* MSDN says this is required to handle SIGFPE */
158	volatile double SIGFPE_REQ = 0.0f;
159	#endif	191	#endif
160		192
161	/*****************************************************************************/	193	/*****************************************************************************/
162		194
163	static void (syserr_cb)(const char msg);	195	static void (syserr_cb)(const char msg);
…		…
211	typedef struct	243	typedef struct
212	{	244	{
213	WL head;	245	WL head;
214	unsigned char events;	246	unsigned char events;
215	unsigned char reify;	247	unsigned char reify;
		248	#if EV_SELECT_IS_WINSOCKET
		249	SOCKET handle;
		250	#endif
216	} ANFD;	251	} ANFD;
217		252
218	typedef struct	253	typedef struct
219	{	254	{
220	W w;	255	W w;
221	int events;	256	int events;
222	} ANPENDING;	257	} ANPENDING;
223		258
224	#if EV_MULTIPLICITY	259	#if EV_MULTIPLICITY
225		260
226	struct ev_loop	261	struct ev_loop
227	{	262	{
		263	ev_tstamp ev_rt_now;
		264	#define ev_rt_now ((loop)->ev_rt_now)
228	# define VAR(name,decl) decl;	265	#define VAR(name,decl) decl;
229	# include "ev_vars.h"	266	#include "ev_vars.h"
230	};
231	# undef VAR	267	#undef VAR
		268	};
232	# 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;
233		273
234	#else	274	#else
235		275
		276	ev_tstamp ev_rt_now;
236	# define VAR(name,decl) static decl;	277	#define VAR(name,decl) static decl;
237	# include "ev_vars.h"	278	#include "ev_vars.h"
238	# undef VAR	279	#undef VAR
		280
		281	static int ev_default_loop_ptr;
239		282
240	#endif	283	#endif
241		284
242	/*****************************************************************************/	285	/*****************************************************************************/
243		286
244	inline ev_tstamp	287	ev_tstamp
245	ev_time (void)	288	ev_time (void)
246	{	289	{
247	#if EV_USE_REALTIME	290	#if EV_USE_REALTIME
248	struct timespec ts;	291	struct timespec ts;
249	clock_gettime (CLOCK_REALTIME, &ts);	292	clock_gettime (CLOCK_REALTIME, &ts);
…		…
268	#endif	311	#endif
269		312
270	return ev_time ();	313	return ev_time ();
271	}	314	}
272		315
		316	#if EV_MULTIPLICITY
273	ev_tstamp	317	ev_tstamp
274	ev_now (EV_P)	318	ev_now (EV_P)
275	{	319	{
276	return rt_now;	320	return ev_rt_now;
277	}	321	}
		322	#endif
278		323
279	#define array_roundsize(base,n) ((n) \| 4 & ~3)	324	#define array_roundsize(type,n) (((n) \| 4) & ~3)
280		325
281	#define array_needsize(base,cur,cnt,init) \	326	#define array_needsize(type,base,cur,cnt,init) \
282	if (expect_false ((cnt) > cur)) \	327	if (expect_false ((cnt) > cur)) \
283	{ \	328	{ \
284	int newcnt = cur; \	329	int newcnt = cur; \
285	do \	330	do \
286	{ \	331	{ \
287	newcnt = array_roundsize (base, newcnt << 1); \	332	newcnt = array_roundsize (type, newcnt << 1); \
288	} \	333	} \
289	while ((cnt) > newcnt); \	334	while ((cnt) > newcnt); \
290	\	335	\
291	base = ev_realloc (base, sizeof (base) (newcnt)); \	336	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
292	init (base + cur, newcnt - cur); \	337	init (base + cur, newcnt - cur); \
293	cur = newcnt; \	338	cur = newcnt; \
294	}	339	}
295		340
296	#define array_slim(stem) \	341	#define array_slim(type,stem) \
297	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	342	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
298	{ \	343	{ \
299	stem ## max = array_roundsize (stem ## cnt >> 1); \	344	stem ## max = array_roundsize (stem ## cnt >> 1); \
300	base = ev_realloc (base, sizeof (base) (stem ## max)); \	345	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
301	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\	346	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
302	}	347	}
303
304	/* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */
305	/* bringing us everlasting joy in form of stupid extra macros that are not required in C */
306	#define array_free_microshit(stem) \
307	ev_free (stem ## s); stem ## cnt = stem ## max = 0;
308		348
309	#define array_free(stem, idx) \	349	#define array_free(stem, idx) \
310	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;
311		351
312	/*****************************************************************************/	352	/*****************************************************************************/
…		…
322		362
323	++base;	363	++base;
324	}	364	}
325	}	365	}
326		366
327	static void	367	void
328	event (EV_P_ W w, int events)	368	ev_feed_event (EV_P_ void *w, int revents)
329	{	369	{
		370	W w_ = (W)w;
		371
330	if (w->pending)	372	if (w_->pending)
331	{	373	{
332	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	374	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
333	return;	375	return;
334	}	376	}
335		377
336	w->pending = ++pendingcnt [ABSPRI (w)];	378	w_->pending = ++pendingcnt [ABSPRI (w_)];
337	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void));	379	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
338	pendings [ABSPRI (w)][w->pending - 1].w = w;	380	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
339	pendings [ABSPRI (w)][w->pending - 1].events = events;	381	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
340	}	382	}
341		383
342	static void	384	static void
343	queue_events (EV_P_ W *events, int eventcnt, int type)	385	queue_events (EV_P_ W *events, int eventcnt, int type)
344	{	386	{
345	int i;	387	int i;
346		388
347	for (i = 0; i < eventcnt; ++i)	389	for (i = 0; i < eventcnt; ++i)
348	event (EV_A_ events [i], type);	390	ev_feed_event (EV_A_ events [i], type);
349	}	391	}
350		392
351	static void	393	inline void
352	fd_event (EV_P_ int fd, int events)	394	fd_event (EV_P_ int fd, int revents)
353	{	395	{
354	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
355	struct ev_io *w;	397	struct ev_io *w;
356		398
357	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)
358	{	400	{
359	int ev = w->events & events;	401	int ev = w->events & revents;
360		402
361	if (ev)	403	if (ev)
362	event (EV_A_ (W)w, ev);	404	ev_feed_event (EV_A_ (W)w, ev);
363	}	405	}
		406	}
		407
		408	void
		409	ev_feed_fd_event (EV_P_ int fd, int revents)
		410	{
		411	fd_event (EV_A_ fd, revents);
364	}	412	}
365		413
366	/*****************************************************************************/	414	/*****************************************************************************/
367		415
368	static void	416	static void
…		…
379	int events = 0;	427	int events = 0;
380		428
381	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)
382	events \|= w->events;	430	events \|= w->events;
383		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
384	anfd->reify = 0;	441	anfd->reify = 0;
385		442
386	method_modify (EV_A_ fd, anfd->events, events);	443	method_modify (EV_A_ fd, anfd->events, events);
387	anfd->events = events;	444	anfd->events = events;
388	}	445	}
…		…
397	return;	454	return;
398		455
399	anfds [fd].reify = 1;	456	anfds [fd].reify = 1;
400		457
401	++fdchangecnt;	458	++fdchangecnt;
402	array_needsize (fdchanges, fdchangemax, fdchangecnt, (void));	459	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
403	fdchanges [fdchangecnt - 1] = fd;	460	fdchanges [fdchangecnt - 1] = fd;
404	}	461	}
405		462
406	static void	463	static void
407	fd_kill (EV_P_ int fd)	464	fd_kill (EV_P_ int fd)
…		…
409	struct ev_io *w;	466	struct ev_io *w;
410		467
411	while ((w = (struct ev_io *)anfds [fd].head))	468	while ((w = (struct ev_io *)anfds [fd].head))
412	{	469	{
413	ev_io_stop (EV_A_ w);	470	ev_io_stop (EV_A_ w);
414	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);
415	}	472	}
416	}	473	}
417		474
418	static int	475	static int
419	fd_valid (int fd)	476	fd_valid (int fd)
420	{	477	{
421	#ifdef WIN32	478	#ifdef _WIN32
422	return !!win32_get_osfhandle (fd);	479	return _get_osfhandle (fd) != -1;
423	#else	480	#else
424	return fcntl (fd, F_GETFD) != -1;	481	return fcntl (fd, F_GETFD) != -1;
425	#endif	482	#endif
426	}	483	}
427		484
…		…
507		564
508	heap [k] = w;	565	heap [k] = w;
509	((W)heap [k])->active = k + 1;	566	((W)heap [k])->active = k + 1;
510	}	567	}
511		568
		569	inline void
		570	adjustheap (WT *heap, int N, int k)
		571	{
		572	upheap (heap, k);
		573	downheap (heap, N, k);
		574	}
		575
512	/*****************************************************************************/	576	/*****************************************************************************/
513		577
514	typedef struct	578	typedef struct
515	{	579	{
516	WL head;	580	WL head;
…		…
537	}	601	}
538		602
539	static void	603	static void
540	sighandler (int signum)	604	sighandler (int signum)
541	{	605	{
542	#if WIN32	606	#if _WIN32
543	signal (signum, sighandler);	607	signal (signum, sighandler);
544	#endif	608	#endif
545		609
546	signals [signum - 1].gotsig = 1;	610	signals [signum - 1].gotsig = 1;
547		611
…		…
552	write (sigpipe [1], &signum, 1);	616	write (sigpipe [1], &signum, 1);
553	errno = old_errno;	617	errno = old_errno;
554	}	618	}
555	}	619	}
556		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
557	static void	641	static void
558	sigcb (EV_P_ struct ev_io *iow, int revents)	642	sigcb (EV_P_ struct ev_io *iow, int revents)
559	{	643	{
560	WL w;
561	int signum;	644	int signum;
562		645
563	read (sigpipe [0], &revents, 1);	646	read (sigpipe [0], &revents, 1);
564	gotsig = 0;	647	gotsig = 0;
565		648
566	for (signum = signalmax; signum--; )	649	for (signum = signalmax; signum--; )
567	if (signals [signum].gotsig)	650	if (signals [signum].gotsig)
568	{	651	ev_feed_signal_event (EV_A_ signum + 1);
569	signals [signum].gotsig = 0;	652	}
570		653
571	for (w = signals [signum].head; w; w = w->next)	654	inline void
572	event (EV_A_ (W)w, EV_SIGNAL);	655	fd_intern (int fd)
573	}	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
574	}	664	}
575		665
576	static void	666	static void
577	siginit (EV_P)	667	siginit (EV_P)
578	{	668	{
579	#ifndef WIN32	669	fd_intern (sigpipe [0]);
580	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	670	fd_intern (sigpipe [1]);
581	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
582
583	/* rather than sort out wether we really need nb, set it */
584	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
585	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
586	#endif
587		671
588	ev_io_set (&sigev, sigpipe [0], EV_READ);	672	ev_io_set (&sigev, sigpipe [0], EV_READ);
589	ev_io_start (EV_A_ &sigev);	673	ev_io_start (EV_A_ &sigev);
590	ev_unref (EV_A); /* child watcher should not keep loop alive */	674	ev_unref (EV_A); /* child watcher should not keep loop alive */
591	}	675	}
592		676
593	/*****************************************************************************/	677	/*****************************************************************************/
594		678
595	static struct ev_child *childs [PID_HASHSIZE];	679	static struct ev_child *childs [PID_HASHSIZE];
596		680
597	#ifndef WIN32	681	#ifndef _WIN32
598		682
599	static struct ev_signal childev;	683	static struct ev_signal childev;
600		684
601	#ifndef WCONTINUED	685	#ifndef WCONTINUED
602	# define WCONTINUED 0	686	# define WCONTINUED 0
…		…
611	if (w->pid == pid \|\| !w->pid)	695	if (w->pid == pid \|\| !w->pid)
612	{	696	{
613	ev_priority (w) = ev_priority (sw); /* need to do it now */	697	ev_priority (w) = ev_priority (sw); /* need to do it now */
614	w->rpid = pid;	698	w->rpid = pid;
615	w->rstatus = status;	699	w->rstatus = status;
616	event (EV_A_ (W)w, EV_CHILD);	700	ev_feed_event (EV_A_ (W)w, EV_CHILD);
617	}	701	}
618	}	702	}
619		703
620	static void	704	static void
621	childcb (EV_P_ struct ev_signal *sw, int revents)	705	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
623	int pid, status;	707	int pid, status;
624		708
625	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	709	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
626	{	710	{
627	/* 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 */
628	event (EV_A_ (W)sw, EV_SIGNAL);	712	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
629		713
630	child_reap (EV_A_ sw, pid, pid, status);	714	child_reap (EV_A_ sw, pid, pid, status);
631	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 */
632	}	716	}
633	}	717	}
634		718
635	#endif	719	#endif
636		720
637	/*****************************************************************************/	721	/*****************************************************************************/
638		722
		723	#if EV_USE_PORT
		724	# include "ev_port.c"
		725	#endif
639	#if EV_USE_KQUEUE	726	#if EV_USE_KQUEUE
640	# include "ev_kqueue.c"	727	# include "ev_kqueue.c"
641	#endif	728	#endif
642	#if EV_USE_EPOLL	729	#if EV_USE_EPOLL
643	# include "ev_epoll.c"	730	# include "ev_epoll.c"
…		…
663		750
664	/* 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 */
665	static int	752	static int
666	enable_secure (void)	753	enable_secure (void)
667	{	754	{
668	#ifdef WIN32	755	#ifdef _WIN32
669	return 0;	756	return 0;
670	#else	757	#else
671	return getuid () != geteuid ()	758	return getuid () != geteuid ()
672	\|\| getgid () != getegid ();	759	\|\| getgid () != getegid ();
673	#endif	760	#endif
674	}	761	}
675		762
676	int	763	unsigned int
677	ev_method (EV_P)	764	ev_method (EV_P)
678	{	765	{
679	return method;	766	return method;
680	}	767	}
681		768
682	static void	769	static void
683	loop_init (EV_P_ int methods)	770	loop_init (EV_P_ unsigned int flags)
684	{	771	{
685	if (!method)	772	if (!method)
686	{	773	{
687	#if EV_USE_MONOTONIC	774	#if EV_USE_MONOTONIC
688	{	775	{
…		…
690	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	777	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
691	have_monotonic = 1;	778	have_monotonic = 1;
692	}	779	}
693	#endif	780	#endif
694		781
695	rt_now = ev_time ();	782	ev_rt_now = ev_time ();
696	mn_now = get_clock ();	783	mn_now = get_clock ();
697	now_floor = mn_now;	784	now_floor = mn_now;
698	rtmn_diff = rt_now - mn_now;	785	rtmn_diff = ev_rt_now - mn_now;
699		786
700	if (methods == EVMETHOD_AUTO)	787	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
701	if (!enable_secure () && getenv ("LIBEV_METHODS"))
702	methods = atoi (getenv ("LIBEV_METHODS"));	788	flags = atoi (getenv ("LIBEV_FLAGS"));
703	else	789
704	methods = EVMETHOD_ANY;	790	if (!(flags & 0x0000ffff))
		791	flags \|= 0x0000ffff;
705		792
706	method = 0;	793	method = 0;
707	#if EV_USE_WIN32	794	#if EV_USE_PORT
708	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	795	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
709	#endif	796	#endif
710	#if EV_USE_KQUEUE	797	#if EV_USE_KQUEUE
711	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	798	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
712	#endif	799	#endif
713	#if EV_USE_EPOLL	800	#if EV_USE_EPOLL
714	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	801	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
715	#endif	802	#endif
716	#if EV_USE_POLL	803	#if EV_USE_POLL
717	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	804	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
718	#endif	805	#endif
719	#if EV_USE_SELECT	806	#if EV_USE_SELECT
720	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	807	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
721	#endif	808	#endif
722		809
723	ev_watcher_init (&sigev, sigcb);	810	ev_init (&sigev, sigcb);
724	ev_set_priority (&sigev, EV_MAXPRI);	811	ev_set_priority (&sigev, EV_MAXPRI);
725	}	812	}
726	}	813	}
727		814
728	void	815	void
729	loop_destroy (EV_P)	816	loop_destroy (EV_P)
730	{	817	{
731	int i;	818	int i;
732		819
733	#if EV_USE_WIN32	820	#if EV_USE_PORT
734	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	821	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
735	#endif	822	#endif
736	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
737	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	824	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
738	#endif	825	#endif
739	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
…		…
748		835
749	for (i = NUMPRI; i--; )	836	for (i = NUMPRI; i--; )
750	array_free (pending, [i]);	837	array_free (pending, [i]);
751		838
752	/* have to use the microsoft-never-gets-it-right macro */	839	/* have to use the microsoft-never-gets-it-right macro */
753	array_free_microshit (fdchange);	840	array_free (fdchange, EMPTY0);
754	array_free_microshit (timer);	841	array_free (timer, EMPTY0);
755	array_free_microshit (periodic);	842	#if EV_PERIODICS
756	array_free_microshit (idle);	843	array_free (periodic, EMPTY0);
757	array_free_microshit (prepare);	844	#endif
758	array_free_microshit (check);	845	array_free (idle, EMPTY0);
		846	array_free (prepare, EMPTY0);
		847	array_free (check, EMPTY0);
759		848
760	method = 0;	849	method = 0;
761	}	850	}
762		851
763	static void	852	static void
764	loop_fork (EV_P)	853	loop_fork (EV_P)
765	{	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
766	#if EV_USE_EPOLL	861	#if EV_USE_EPOLL
767	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	862	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
768	#endif
769	#if EV_USE_KQUEUE
770	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
771	#endif	863	#endif
772		864
773	if (ev_is_active (&sigev))	865	if (ev_is_active (&sigev))
774	{	866	{
775	/* default loop */	867	/* default loop */
…		…
788	postfork = 0;	880	postfork = 0;
789	}	881	}
790		882
791	#if EV_MULTIPLICITY	883	#if EV_MULTIPLICITY
792	struct ev_loop *	884	struct ev_loop *
793	ev_loop_new (int methods)	885	ev_loop_new (unsigned int flags)
794	{	886	{
795	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));
796		888
797	memset (loop, 0, sizeof (struct ev_loop));	889	memset (loop, 0, sizeof (struct ev_loop));
798		890
799	loop_init (EV_A_ methods);	891	loop_init (EV_A_ flags);
800		892
801	if (ev_method (EV_A))	893	if (ev_method (EV_A))
802	return loop;	894	return loop;
803		895
804	return 0;	896	return 0;
…		…
818	}	910	}
819		911
820	#endif	912	#endif
821		913
822	#if EV_MULTIPLICITY	914	#if EV_MULTIPLICITY
823	struct ev_loop default_loop_struct;
824	static struct ev_loop *default_loop;
825
826	struct ev_loop *	915	struct ev_loop *
		916	ev_default_loop_ (unsigned int flags)
827	#else	917	#else
828	static int default_loop;
829
830	int	918	int
		919	ev_default_loop (unsigned int flags)
831	#endif	920	#endif
832	ev_default_loop (int methods)
833	{	921	{
834	if (sigpipe [0] == sigpipe [1])	922	if (sigpipe [0] == sigpipe [1])
835	if (pipe (sigpipe))	923	if (pipe (sigpipe))
836	return 0;	924	return 0;
837		925
838	if (!default_loop)	926	if (!ev_default_loop_ptr)
839	{	927	{
840	#if EV_MULTIPLICITY	928	#if EV_MULTIPLICITY
841	struct ev_loop *loop = default_loop = &default_loop_struct;	929	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
842	#else	930	#else
843	default_loop = 1;	931	ev_default_loop_ptr = 1;
844	#endif	932	#endif
845		933
846	loop_init (EV_A_ methods);	934	loop_init (EV_A_ flags);
847		935
848	if (ev_method (EV_A))	936	if (ev_method (EV_A))
849	{	937	{
850	siginit (EV_A);	938	siginit (EV_A);
851		939
852	#ifndef WIN32	940	#ifndef _WIN32
853	ev_signal_init (&childev, childcb, SIGCHLD);	941	ev_signal_init (&childev, childcb, SIGCHLD);
854	ev_set_priority (&childev, EV_MAXPRI);	942	ev_set_priority (&childev, EV_MAXPRI);
855	ev_signal_start (EV_A_ &childev);	943	ev_signal_start (EV_A_ &childev);
856	ev_unref (EV_A); /* child watcher should not keep loop alive */	944	ev_unref (EV_A); /* child watcher should not keep loop alive */
857	#endif	945	#endif
858	}	946	}
859	else	947	else
860	default_loop = 0;	948	ev_default_loop_ptr = 0;
861	}	949	}
862		950
863	return default_loop;	951	return ev_default_loop_ptr;
864	}	952	}
865		953
866	void	954	void
867	ev_default_destroy (void)	955	ev_default_destroy (void)
868	{	956	{
869	#if EV_MULTIPLICITY	957	#if EV_MULTIPLICITY
870	struct ev_loop *loop = default_loop;	958	struct ev_loop *loop = ev_default_loop_ptr;
871	#endif	959	#endif
872		960
873	#ifndef WIN32	961	#ifndef _WIN32
874	ev_ref (EV_A); /* child watcher */	962	ev_ref (EV_A); /* child watcher */
875	ev_signal_stop (EV_A_ &childev);	963	ev_signal_stop (EV_A_ &childev);
876	#endif	964	#endif
877		965
878	ev_ref (EV_A); /* signal watcher */	966	ev_ref (EV_A); /* signal watcher */
…		…
886		974
887	void	975	void
888	ev_default_fork (void)	976	ev_default_fork (void)
889	{	977	{
890	#if EV_MULTIPLICITY	978	#if EV_MULTIPLICITY
891	struct ev_loop *loop = default_loop;	979	struct ev_loop *loop = ev_default_loop_ptr;
892	#endif	980	#endif
893		981
894	if (method)	982	if (method)
895	postfork = 1;	983	postfork = 1;
896	}	984	}
897		985
898	/*****************************************************************************/	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	}
899		999
900	static void	1000	static void
901	call_pending (EV_P)	1001	call_pending (EV_P)
902	{	1002	{
903	int pri;	1003	int pri;
…		…
908	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1008	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
909		1009
910	if (p->w)	1010	if (p->w)
911	{	1011	{
912	p->w->pending = 0;	1012	p->w->pending = 0;
913	p->w->cb (EV_A_ p->w, p->events);	1013	EV_CB_INVOKE (p->w, p->events);
914	}	1014	}
915	}	1015	}
916	}	1016	}
917		1017
918	static void	1018	static void
…		…
926		1026
927	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
928	if (w->repeat)	1028	if (w->repeat)
929	{	1029	{
930	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
931	((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
932	downheap ((WT *)timers, timercnt, 0);	1036	downheap ((WT *)timers, timercnt, 0);
933	}	1037	}
934	else	1038	else
935	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
936		1040
937	event (EV_A_ (W)w, EV_TIMEOUT);	1041	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
938	}	1042	}
939	}	1043	}
940		1044
		1045	#if EV_PERIODICS
941	static void	1046	static void
942	periodics_reify (EV_P)	1047	periodics_reify (EV_P)
943	{	1048	{
944	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1049	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
945	{	1050	{
946	struct ev_periodic *w = periodics [0];	1051	struct ev_periodic *w = periodics [0];
947		1052
948	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1053	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
949		1054
950	/* first reschedule or stop timer */	1055	/* first reschedule or stop timer */
951	if (w->interval)	1056	if (w->reschedule_cb)
952	{	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	{
953	((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;
954	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));
955	downheap ((WT *)periodics, periodiccnt, 0);	1066	downheap ((WT *)periodics, periodiccnt, 0);
956	}	1067	}
957	else	1068	else
958	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1069	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
959		1070
960	event (EV_A_ (W)w, EV_PERIODIC);	1071	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
961	}	1072	}
962	}	1073	}
963		1074
964	static void	1075	static void
965	periodics_reschedule (EV_P)	1076	periodics_reschedule (EV_P)
…		…
969	/* adjust periodics after time jump */	1080	/* adjust periodics after time jump */
970	for (i = 0; i < periodiccnt; ++i)	1081	for (i = 0; i < periodiccnt; ++i)
971	{	1082	{
972	struct ev_periodic *w = periodics [i];	1083	struct ev_periodic *w = periodics [i];
973		1084
		1085	if (w->reschedule_cb)
		1086	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
974	if (w->interval)	1087	else if (w->interval)
975	{
976	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;
977
978	if (fabs (diff) >= 1e-4)
979	{
980	ev_periodic_stop (EV_A_ w);
981	ev_periodic_start (EV_A_ w);
982
983	i = 0; /* restart loop, inefficient, but time jumps should be rare */
984	}
985	}
986	}	1089	}
		1090
		1091	/* now rebuild the heap */
		1092	for (i = periodiccnt >> 1; i--; )
		1093	downheap ((WT *)periodics, periodiccnt, i);
987	}	1094	}
		1095	#endif
988		1096
989	inline int	1097	inline int
990	time_update_monotonic (EV_P)	1098	time_update_monotonic (EV_P)
991	{	1099	{
992	mn_now = get_clock ();	1100	mn_now = get_clock ();
993		1101
994	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1102	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
995	{	1103	{
996	rt_now = rtmn_diff + mn_now;	1104	ev_rt_now = rtmn_diff + mn_now;
997	return 0;	1105	return 0;
998	}	1106	}
999	else	1107	else
1000	{	1108	{
1001	now_floor = mn_now;	1109	now_floor = mn_now;
1002	rt_now = ev_time ();	1110	ev_rt_now = ev_time ();
1003	return 1;	1111	return 1;
1004	}	1112	}
1005	}	1113	}
1006		1114
1007	static void	1115	static void
…		…
1016	{	1124	{
1017	ev_tstamp odiff = rtmn_diff;	1125	ev_tstamp odiff = rtmn_diff;
1018		1126
1019	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 */
1020	{	1128	{
1021	rtmn_diff = rt_now - mn_now;	1129	rtmn_diff = ev_rt_now - mn_now;
1022		1130
1023	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1131	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
1024	return; /* all is well */	1132	return; /* all is well */
1025		1133
1026	rt_now = ev_time ();	1134	ev_rt_now = ev_time ();
1027	mn_now = get_clock ();	1135	mn_now = get_clock ();
1028	now_floor = mn_now;	1136	now_floor = mn_now;
1029	}	1137	}
1030		1138
		1139	# if EV_PERIODICS
1031	periodics_reschedule (EV_A);	1140	periodics_reschedule (EV_A);
		1141	# endif
1032	/* no timer adjustment, as the monotonic clock doesn't jump */	1142	/* no timer adjustment, as the monotonic clock doesn't jump */
1033	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1143	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
1034	}	1144	}
1035	}	1145	}
1036	else	1146	else
1037	#endif	1147	#endif
1038	{	1148	{
1039	rt_now = ev_time ();	1149	ev_rt_now = ev_time ();
1040		1150
1041	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))
1042	{	1152	{
		1153	#if EV_PERIODICS
1043	periodics_reschedule (EV_A);	1154	periodics_reschedule (EV_A);
		1155	#endif
1044		1156
1045	/* 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 */
1046	for (i = 0; i < timercnt; ++i)	1158	for (i = 0; i < timercnt; ++i)
1047	((WT)timers [i])->at += rt_now - mn_now;	1159	((WT)timers [i])->at += ev_rt_now - mn_now;
1048	}	1160	}
1049		1161
1050	mn_now = rt_now;	1162	mn_now = ev_rt_now;
1051	}	1163	}
1052	}	1164	}
1053		1165
1054	void	1166	void
1055	ev_ref (EV_P)	1167	ev_ref (EV_P)
…		…
1069	ev_loop (EV_P_ int flags)	1181	ev_loop (EV_P_ int flags)
1070	{	1182	{
1071	double block;	1183	double block;
1072	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1184	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
1073		1185
1074	do	1186	while (activecnt)
1075	{	1187	{
1076	/* queue check watchers (and execute them) */	1188	/* queue check watchers (and execute them) */
1077	if (expect_false (preparecnt))	1189	if (expect_false (preparecnt))
1078	{	1190	{
1079	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1191	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
…		…
1087	/* update fd-related kernel structures */	1199	/* update fd-related kernel structures */
1088	fd_reify (EV_A);	1200	fd_reify (EV_A);
1089		1201
1090	/* calculate blocking time */	1202	/* calculate blocking time */
1091		1203
1092	/* 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
1093	always have timers, we just calculate it always */	1205	always have timers, we just calculate it always */
1094	#if EV_USE_MONOTONIC	1206	#if EV_USE_MONOTONIC
1095	if (expect_true (have_monotonic))	1207	if (expect_true (have_monotonic))
1096	time_update_monotonic (EV_A);	1208	time_update_monotonic (EV_A);
1097	else	1209	else
1098	#endif	1210	#endif
1099	{	1211	{
1100	rt_now = ev_time ();	1212	ev_rt_now = ev_time ();
1101	mn_now = rt_now;	1213	mn_now = ev_rt_now;
1102	}	1214	}
1103		1215
1104	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1216	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
1105	block = 0.;	1217	block = 0.;
1106	else	1218	else
…		…
1111	{	1223	{
1112	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1224	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1113	if (block > to) block = to;	1225	if (block > to) block = to;
1114	}	1226	}
1115		1227
		1228	#if EV_PERIODICS
1116	if (periodiccnt)	1229	if (periodiccnt)
1117	{	1230	{
1118	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1231	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1119	if (block > to) block = to;	1232	if (block > to) block = to;
1120	}	1233	}
		1234	#endif
1121		1235
1122	if (block < 0.) block = 0.;	1236	if (block < 0.) block = 0.;
1123	}	1237	}
1124		1238
1125	method_poll (EV_A_ block);	1239	method_poll (EV_A_ block);
1126		1240
1127	/* update rt_now, do magic */	1241	/* update ev_rt_now, do magic */
1128	time_update (EV_A);	1242	time_update (EV_A);
1129		1243
1130	/* queue pending timers and reschedule them */	1244	/* queue pending timers and reschedule them */
1131	timers_reify (EV_A); /* relative timers called last */	1245	timers_reify (EV_A); /* relative timers called last */
		1246	#if EV_PERIODICS
1132	periodics_reify (EV_A); /* absolute timers called first */	1247	periodics_reify (EV_A); /* absolute timers called first */
		1248	#endif
1133		1249
1134	/* queue idle watchers unless io or timers are pending */	1250	/* queue idle watchers unless io or timers are pending */
1135	if (!pendingcnt)	1251	if (idlecnt && !any_pending (EV_A))
1136	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1252	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1137		1253
1138	/* queue check watchers, to be executed first */	1254	/* queue check watchers, to be executed first */
1139	if (checkcnt)	1255	if (checkcnt)
1140	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1256	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1141		1257
1142	call_pending (EV_A);	1258	call_pending (EV_A);
		1259
		1260	if (loop_done)
		1261	break;
1143	}	1262	}
1144	while (activecnt && !loop_done);
1145		1263
1146	if (loop_done != 2)	1264	if (loop_done != 2)
1147	loop_done = 0;	1265	loop_done = 0;
1148	}	1266	}
1149		1267
…		…
1215	return;	1333	return;
1216		1334
1217	assert (("ev_io_start called with negative fd", fd >= 0));	1335	assert (("ev_io_start called with negative fd", fd >= 0));
1218		1336
1219	ev_start (EV_A_ (W)w, 1);	1337	ev_start (EV_A_ (W)w, 1);
1220	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1338	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1221	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1339	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1222		1340
1223	fd_change (EV_A_ fd);	1341	fd_change (EV_A_ fd);
1224	}	1342	}
1225		1343
…		…
1228	{	1346	{
1229	ev_clear_pending (EV_A_ (W)w);	1347	ev_clear_pending (EV_A_ (W)w);
1230	if (!ev_is_active (w))	1348	if (!ev_is_active (w))
1231	return;	1349	return;
1232		1350
		1351	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1352
1233	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1353	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1234	ev_stop (EV_A_ (W)w);	1354	ev_stop (EV_A_ (W)w);
1235		1355
1236	fd_change (EV_A_ w->fd);	1356	fd_change (EV_A_ w->fd);
1237	}	1357	}
…		…
1245	((WT)w)->at += mn_now;	1365	((WT)w)->at += mn_now;
1246		1366
1247	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.));
1248		1368
1249	ev_start (EV_A_ (W)w, ++timercnt);	1369	ev_start (EV_A_ (W)w, ++timercnt);
1250	array_needsize (timers, timermax, timercnt, (void));	1370	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1251	timers [timercnt - 1] = w;	1371	timers [timercnt - 1] = w;
1252	upheap ((WT *)timers, timercnt - 1);	1372	upheap ((WT *)timers, timercnt - 1);
1253		1373
1254	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1374	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1255	}	1375	}
…		…
1264	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1384	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1265		1385
1266	if (((W)w)->active < timercnt--)	1386	if (((W)w)->active < timercnt--)
1267	{	1387	{
1268	timers [((W)w)->active - 1] = timers [timercnt];	1388	timers [((W)w)->active - 1] = timers [timercnt];
1269	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1389	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1270	}	1390	}
1271		1391
1272	((WT)w)->at = w->repeat;	1392	((WT)w)->at -= mn_now;
1273		1393
1274	ev_stop (EV_A_ (W)w);	1394	ev_stop (EV_A_ (W)w);
1275	}	1395	}
1276		1396
1277	void	1397	void
…		…
1280	if (ev_is_active (w))	1400	if (ev_is_active (w))
1281	{	1401	{
1282	if (w->repeat)	1402	if (w->repeat)
1283	{	1403	{
1284	((WT)w)->at = mn_now + w->repeat;	1404	((WT)w)->at = mn_now + w->repeat;
1285	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1286	}	1406	}
1287	else	1407	else
1288	ev_timer_stop (EV_A_ w);	1408	ev_timer_stop (EV_A_ w);
1289	}	1409	}
1290	else if (w->repeat)	1410	else if (w->repeat)
		1411	{
		1412	w->at = w->repeat;
1291	ev_timer_start (EV_A_ w);	1413	ev_timer_start (EV_A_ w);
		1414	}
1292	}	1415	}
1293		1416
		1417	#if EV_PERIODICS
1294	void	1418	void
1295	ev_periodic_start (EV_P_ struct ev_periodic *w)	1419	ev_periodic_start (EV_P_ struct ev_periodic *w)
1296	{	1420	{
1297	if (ev_is_active (w))	1421	if (ev_is_active (w))
1298	return;	1422	return;
1299		1423
		1424	if (w->reschedule_cb)
		1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1426	else if (w->interval)
		1427	{
1300	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.));
1301
1302	/* 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 */
1303	if (w->interval)
1304	((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	}
1305		1432
1306	ev_start (EV_A_ (W)w, ++periodiccnt);	1433	ev_start (EV_A_ (W)w, ++periodiccnt);
1307	array_needsize (periodics, periodicmax, periodiccnt, (void));	1434	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1308	periodics [periodiccnt - 1] = w;	1435	periodics [periodiccnt - 1] = w;
1309	upheap ((WT *)periodics, periodiccnt - 1);	1436	upheap ((WT *)periodics, periodiccnt - 1);
1310		1437
1311	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1438	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1312	}	1439	}
…		…
1321	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1448	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1322		1449
1323	if (((W)w)->active < periodiccnt--)	1450	if (((W)w)->active < periodiccnt--)
1324	{	1451	{
1325	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1452	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1326	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1453	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1327	}	1454	}
1328		1455
1329	ev_stop (EV_A_ (W)w);	1456	ev_stop (EV_A_ (W)w);
1330	}	1457	}
1331		1458
1332	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
1333	ev_idle_start (EV_P_ struct ev_idle *w)	1469	ev_idle_start (EV_P_ struct ev_idle *w)
1334	{	1470	{
1335	if (ev_is_active (w))	1471	if (ev_is_active (w))
1336	return;	1472	return;
1337		1473
1338	ev_start (EV_A_ (W)w, ++idlecnt);	1474	ev_start (EV_A_ (W)w, ++idlecnt);
1339	array_needsize (idles, idlemax, idlecnt, (void));	1475	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1340	idles [idlecnt - 1] = w;	1476	idles [idlecnt - 1] = w;
1341	}	1477	}
1342		1478
1343	void	1479	void
1344	ev_idle_stop (EV_P_ struct ev_idle *w)	1480	ev_idle_stop (EV_P_ struct ev_idle *w)
1345	{	1481	{
1346	ev_clear_pending (EV_A_ (W)w);	1482	ev_clear_pending (EV_A_ (W)w);
1347	if (ev_is_active (w))	1483	if (!ev_is_active (w))
1348	return;	1484	return;
1349		1485
1350	idles [((W)w)->active - 1] = idles [--idlecnt];	1486	idles [((W)w)->active - 1] = idles [--idlecnt];
1351	ev_stop (EV_A_ (W)w);	1487	ev_stop (EV_A_ (W)w);
1352	}	1488	}
…		…
1356	{	1492	{
1357	if (ev_is_active (w))	1493	if (ev_is_active (w))
1358	return;	1494	return;
1359		1495
1360	ev_start (EV_A_ (W)w, ++preparecnt);	1496	ev_start (EV_A_ (W)w, ++preparecnt);
1361	array_needsize (prepares, preparemax, preparecnt, (void));	1497	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1362	prepares [preparecnt - 1] = w;	1498	prepares [preparecnt - 1] = w;
1363	}	1499	}
1364		1500
1365	void	1501	void
1366	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1502	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1367	{	1503	{
1368	ev_clear_pending (EV_A_ (W)w);	1504	ev_clear_pending (EV_A_ (W)w);
1369	if (ev_is_active (w))	1505	if (!ev_is_active (w))
1370	return;	1506	return;
1371		1507
1372	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1508	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1373	ev_stop (EV_A_ (W)w);	1509	ev_stop (EV_A_ (W)w);
1374	}	1510	}
…		…
1378	{	1514	{
1379	if (ev_is_active (w))	1515	if (ev_is_active (w))
1380	return;	1516	return;
1381		1517
1382	ev_start (EV_A_ (W)w, ++checkcnt);	1518	ev_start (EV_A_ (W)w, ++checkcnt);
1383	array_needsize (checks, checkmax, checkcnt, (void));	1519	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1384	checks [checkcnt - 1] = w;	1520	checks [checkcnt - 1] = w;
1385	}	1521	}
1386		1522
1387	void	1523	void
1388	ev_check_stop (EV_P_ struct ev_check *w)	1524	ev_check_stop (EV_P_ struct ev_check *w)
1389	{	1525	{
1390	ev_clear_pending (EV_A_ (W)w);	1526	ev_clear_pending (EV_A_ (W)w);
1391	if (ev_is_active (w))	1527	if (!ev_is_active (w))
1392	return;	1528	return;
1393		1529
1394	checks [((W)w)->active - 1] = checks [--checkcnt];	1530	checks [((W)w)->active - 1] = checks [--checkcnt];
1395	ev_stop (EV_A_ (W)w);	1531	ev_stop (EV_A_ (W)w);
1396	}	1532	}
…		…
1401		1537
1402	void	1538	void
1403	ev_signal_start (EV_P_ struct ev_signal *w)	1539	ev_signal_start (EV_P_ struct ev_signal *w)
1404	{	1540	{
1405	#if EV_MULTIPLICITY	1541	#if EV_MULTIPLICITY
1406	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));
1407	#endif	1543	#endif
1408	if (ev_is_active (w))	1544	if (ev_is_active (w))
1409	return;	1545	return;
1410		1546
1411	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));
1412		1548
1413	ev_start (EV_A_ (W)w, 1);	1549	ev_start (EV_A_ (W)w, 1);
1414	array_needsize (signals, signalmax, w->signum, signals_init);	1550	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1415	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1551	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1416		1552
1417	if (!((WL)w)->next)	1553	if (!((WL)w)->next)
1418	{	1554	{
1419	#if WIN32	1555	#if _WIN32
1420	signal (w->signum, sighandler);	1556	signal (w->signum, sighandler);
1421	#else	1557	#else
1422	struct sigaction sa;	1558	struct sigaction sa;
1423	sa.sa_handler = sighandler;	1559	sa.sa_handler = sighandler;
1424	sigfillset (&sa.sa_mask);	1560	sigfillset (&sa.sa_mask);
…		…
1444		1580
1445	void	1581	void
1446	ev_child_start (EV_P_ struct ev_child *w)	1582	ev_child_start (EV_P_ struct ev_child *w)
1447	{	1583	{
1448	#if EV_MULTIPLICITY	1584	#if EV_MULTIPLICITY
1449	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));
1450	#endif	1586	#endif
1451	if (ev_is_active (w))	1587	if (ev_is_active (w))
1452	return;	1588	return;
1453		1589
1454	ev_start (EV_A_ (W)w, 1);	1590	ev_start (EV_A_ (W)w, 1);
…		…
1457		1593
1458	void	1594	void
1459	ev_child_stop (EV_P_ struct ev_child *w)	1595	ev_child_stop (EV_P_ struct ev_child *w)
1460	{	1596	{
1461	ev_clear_pending (EV_A_ (W)w);	1597	ev_clear_pending (EV_A_ (W)w);
1462	if (ev_is_active (w))	1598	if (!ev_is_active (w))
1463	return;	1599	return;
1464		1600
1465	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1601	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1466	ev_stop (EV_A_ (W)w);	1602	ev_stop (EV_A_ (W)w);
1467	}	1603	}
…		…
1502	}	1638	}
1503		1639
1504	void	1640	void
1505	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1641	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1506	{	1642	{
1507	struct ev_once *once = ev_malloc (sizeof (struct ev_once));	1643	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1508		1644
1509	if (!once)	1645	if (!once)
1510	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1646	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1511	else	1647	else
1512	{	1648	{
1513	once->cb = cb;	1649	once->cb = cb;
1514	once->arg = arg;	1650	once->arg = arg;
1515		1651
1516	ev_watcher_init (&once->io, once_cb_io);	1652	ev_init (&once->io, once_cb_io);
1517	if (fd >= 0)	1653	if (fd >= 0)
1518	{	1654	{
1519	ev_io_set (&once->io, fd, events);	1655	ev_io_set (&once->io, fd, events);
1520	ev_io_start (EV_A_ &once->io);	1656	ev_io_start (EV_A_ &once->io);
1521	}	1657	}
1522		1658
1523	ev_watcher_init (&once->to, once_cb_to);	1659	ev_init (&once->to, once_cb_to);
1524	if (timeout >= 0.)	1660	if (timeout >= 0.)
1525	{	1661	{
1526	ev_timer_set (&once->to, timeout, 0.);	1662	ev_timer_set (&once->to, timeout, 0.);
1527	ev_timer_start (EV_A_ &once->to);	1663	ev_timer_start (EV_A_ &once->to);
1528	}	1664	}
1529	}	1665	}
1530	}	1666	}
1531		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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Comparing libev/ev.c (file contents): Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC vs. Revision 1.119 by root, Fri Nov 16 01:43:52 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.71 by root, Tue Nov 6 13:17:55 2007 UTC vs.
Revision 1.119 by root, Fri Nov 16 01:43:52 2007 UTC