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

Comparing libev/ev.c (file contents):
Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs.
Revision 1.104 by root, Mon Nov 12 00:39:45 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
53	# endif	62	# endif
54		63
55	#endif	64	#endif
56		65
57	#include <math.h>	66	#include <math.h>
58	#include <stdlib.h>	67	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	68	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	69	#include <stddef.h>
63		70
64	#include <stdio.h>	71	#include <stdio.h>
65		72
66	#include <assert.h>	73	#include <assert.h>
67	#include <errno.h>	74	#include <errno.h>
68	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
69	#ifndef WIN32	80	#ifndef _WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
70	# include <sys/wait.h>	83	# include <sys/wait.h>
		84	#else
		85	# define WIN32_LEAN_AND_MEAN
		86	# include <windows.h>
		87	# ifndef EV_SELECT_IS_WINSOCKET
		88	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	89	# endif
72	#include <sys/time.h>	90	#endif
73	#include <time.h>
74		91
75	/**/	92	/**/
76		93
77	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
79	#endif	96	#endif
80		97
81	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
83	#endif	101	#endif
84		102
85	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	104	# ifdef _WIN32
		105	# define EV_USE_POLL 0
		106	# else
		107	# define EV_USE_POLL 1
		108	# endif
87	#endif	109	#endif
88		110
89	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
91	#endif	113	#endif
…		…
106	#endif	128	#endif
107		129
108	#ifndef CLOCK_REALTIME	130	#ifndef CLOCK_REALTIME
109	# undef EV_USE_REALTIME	131	# undef EV_USE_REALTIME
110	# define EV_USE_REALTIME 0	132	# define EV_USE_REALTIME 0
		133	#endif
		134
		135	#if EV_SELECT_IS_WINSOCKET
		136	# include <winsock.h>
111	#endif	137	#endif
112		138
113	/**/	139	/**/
114		140
115	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	141	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
116	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	142	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
117	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	143	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
118	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	144	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
119		145
		146	#ifdef EV_H
		147	# include EV_H
		148	#else
120	#include "ev.h"	149	# include "ev.h"
		150	#endif
121		151
122	#if __GNUC__ >= 3	152	#if __GNUC__ >= 3
123	# define expect(expr,value) __builtin_expect ((expr),(value))	153	# define expect(expr,value) __builtin_expect ((expr),(value))
124	# define inline inline	154	# define inline inline
125	#else	155	#else
…		…
131	#define expect_true(expr) expect ((expr) != 0, 1)	161	#define expect_true(expr) expect ((expr) != 0, 1)
132		162
133	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	163	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
134	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	164	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
135		165
		166	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		167
136	typedef struct ev_watcher *W;	168	typedef struct ev_watcher *W;
137	typedef struct ev_watcher_list *WL;	169	typedef struct ev_watcher_list *WL;
138	typedef struct ev_watcher_time *WT;	170	typedef struct ev_watcher_time *WT;
139		171
140	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	172	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
141		173
		174	#ifdef _WIN32
		175	# include "ev_win32.c"
		176	#endif
		177
142	/*****************************************************************************/	178	/*****************************************************************************/
143		179
		180	static void (syserr_cb)(const char msg);
		181
		182	void ev_set_syserr_cb (void (cb)(const char msg))
		183	{
		184	syserr_cb = cb;
		185	}
		186
		187	static void
		188	syserr (const char *msg)
		189	{
		190	if (!msg)
		191	msg = "(libev) system error";
		192
		193	if (syserr_cb)
		194	syserr_cb (msg);
		195	else
		196	{
		197	perror (msg);
		198	abort ();
		199	}
		200	}
		201
		202	static void (alloc)(void *ptr, long size);
		203
		204	void ev_set_allocator (void (cb)(void *ptr, long size))
		205	{
		206	alloc = cb;
		207	}
		208
		209	static void *
		210	ev_realloc (void *ptr, long size)
		211	{
		212	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		213
		214	if (!ptr && size)
		215	{
		216	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		217	abort ();
		218	}
		219
		220	return ptr;
		221	}
		222
		223	#define ev_malloc(size) ev_realloc (0, (size))
		224	#define ev_free(ptr) ev_realloc ((ptr), 0)
		225
		226	/*****************************************************************************/
		227
144	typedef struct	228	typedef struct
145	{	229	{
146	struct ev_watcher_list *head;	230	WL head;
147	unsigned char events;	231	unsigned char events;
148	unsigned char reify;	232	unsigned char reify;
		233	#if EV_SELECT_IS_WINSOCKET
		234	SOCKET handle;
		235	#endif
149	} ANFD;	236	} ANFD;
150		237
151	typedef struct	238	typedef struct
152	{	239	{
153	W w;	240	W w;
154	int events;	241	int events;
155	} ANPENDING;	242	} ANPENDING;
156		243
157	#if EV_MULTIPLICITY	244	#if EV_MULTIPLICITY
158		245
159	struct ev_loop	246	struct ev_loop
160	{	247	{
		248	ev_tstamp ev_rt_now;
		249	#define ev_rt_now ((loop)->ev_rt_now)
161	# define VAR(name,decl) decl;	250	#define VAR(name,decl) decl;
162	# include "ev_vars.h"	251	#include "ev_vars.h"
163	};
164	# undef VAR	252	#undef VAR
		253	};
165	# include "ev_wrap.h"	254	#include "ev_wrap.h"
		255
		256	struct ev_loop default_loop_struct;
		257	static struct ev_loop *default_loop;
166		258
167	#else	259	#else
168		260
		261	ev_tstamp ev_rt_now;
169	# define VAR(name,decl) static decl;	262	#define VAR(name,decl) static decl;
170	# include "ev_vars.h"	263	#include "ev_vars.h"
171	# undef VAR	264	#undef VAR
		265
		266	static int default_loop;
172		267
173	#endif	268	#endif
174		269
175	/*****************************************************************************/	270	/*****************************************************************************/
176		271
177	inline ev_tstamp	272	ev_tstamp
178	ev_time (void)	273	ev_time (void)
179	{	274	{
180	#if EV_USE_REALTIME	275	#if EV_USE_REALTIME
181	struct timespec ts;	276	struct timespec ts;
182	clock_gettime (CLOCK_REALTIME, &ts);	277	clock_gettime (CLOCK_REALTIME, &ts);
…		…
201	#endif	296	#endif
202		297
203	return ev_time ();	298	return ev_time ();
204	}	299	}
205		300
		301	#if EV_MULTIPLICITY
206	ev_tstamp	302	ev_tstamp
207	ev_now (EV_P)	303	ev_now (EV_P)
208	{	304	{
209	return rt_now;	305	return ev_rt_now;
210	}	306	}
		307	#endif
211		308
212	#define array_roundsize(base,n) ((n) \| 4 & ~3)	309	#define array_roundsize(type,n) ((n) \| 4 & ~3)
213		310
214	#define array_needsize(base,cur,cnt,init) \	311	#define array_needsize(type,base,cur,cnt,init) \
215	if (expect_false ((cnt) > cur)) \	312	if (expect_false ((cnt) > cur)) \
216	{ \	313	{ \
217	int newcnt = cur; \	314	int newcnt = cur; \
218	do \	315	do \
219	{ \	316	{ \
220	newcnt = array_roundsize (base, newcnt << 1); \	317	newcnt = array_roundsize (type, newcnt << 1); \
221	} \	318	} \
222	while ((cnt) > newcnt); \	319	while ((cnt) > newcnt); \
223	\	320	\
224	base = realloc (base, sizeof (base) (newcnt)); \	321	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
225	init (base + cur, newcnt - cur); \	322	init (base + cur, newcnt - cur); \
226	cur = newcnt; \	323	cur = newcnt; \
227	}	324	}
		325
		326	#define array_slim(type,stem) \
		327	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		328	{ \
		329	stem ## max = array_roundsize (stem ## cnt >> 1); \
		330	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		331	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		332	}
		333
		334	#define array_free(stem, idx) \
		335	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
228		336
229	/*****************************************************************************/	337	/*****************************************************************************/
230		338
231	static void	339	static void
232	anfds_init (ANFD *base, int count)	340	anfds_init (ANFD *base, int count)
…		…
239		347
240	++base;	348	++base;
241	}	349	}
242	}	350	}
243		351
244	static void	352	void
245	event (EV_P_ W w, int events)	353	ev_feed_event (EV_P_ void *w, int revents)
246	{	354	{
		355	W w_ = (W)w;
		356
247	if (w->pending)	357	if (w_->pending)
248	{	358	{
249	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	359	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
250	return;	360	return;
251	}	361	}
252		362
253	w->pending = ++pendingcnt [ABSPRI (w)];	363	w_->pending = ++pendingcnt [ABSPRI (w_)];
254	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	364	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
255	pendings [ABSPRI (w)][w->pending - 1].w = w;	365	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
256	pendings [ABSPRI (w)][w->pending - 1].events = events;	366	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
257	}	367	}
258		368
259	static void	369	static void
260	queue_events (EV_P_ W *events, int eventcnt, int type)	370	queue_events (EV_P_ W *events, int eventcnt, int type)
261	{	371	{
262	int i;	372	int i;
263		373
264	for (i = 0; i < eventcnt; ++i)	374	for (i = 0; i < eventcnt; ++i)
265	event (EV_A_ events [i], type);	375	ev_feed_event (EV_A_ events [i], type);
266	}	376	}
267		377
268	static void	378	inline void
269	fd_event (EV_P_ int fd, int events)	379	fd_event (EV_P_ int fd, int revents)
270	{	380	{
271	ANFD *anfd = anfds + fd;	381	ANFD *anfd = anfds + fd;
272	struct ev_io *w;	382	struct ev_io *w;
273		383
274	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	384	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
275	{	385	{
276	int ev = w->events & events;	386	int ev = w->events & revents;
277		387
278	if (ev)	388	if (ev)
279	event (EV_A_ (W)w, ev);	389	ev_feed_event (EV_A_ (W)w, ev);
280	}	390	}
		391	}
		392
		393	void
		394	ev_feed_fd_event (EV_P_ int fd, int revents)
		395	{
		396	fd_event (EV_A_ fd, revents);
281	}	397	}
282		398
283	/*****************************************************************************/	399	/*****************************************************************************/
284		400
285	static void	401	static void
…		…
296	int events = 0;	412	int events = 0;
297		413
298	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	414	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
299	events \|= w->events;	415	events \|= w->events;
300		416
		417	#if EV_SELECT_IS_WINSOCKET
		418	if (events)
		419	{
		420	unsigned long argp;
		421	anfd->handle = _get_osfhandle (fd);
		422	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		423	}
		424	#endif
		425
301	anfd->reify = 0;	426	anfd->reify = 0;
302		427
303	if (anfd->events != events)
304	{
305	method_modify (EV_A_ fd, anfd->events, events);	428	method_modify (EV_A_ fd, anfd->events, events);
306	anfd->events = events;	429	anfd->events = events;
307	}
308	}	430	}
309		431
310	fdchangecnt = 0;	432	fdchangecnt = 0;
311	}	433	}
312		434
313	static void	435	static void
314	fd_change (EV_P_ int fd)	436	fd_change (EV_P_ int fd)
315	{	437	{
316	if (anfds [fd].reify \|\| fdchangecnt < 0)	438	if (anfds [fd].reify)
317	return;	439	return;
318		440
319	anfds [fd].reify = 1;	441	anfds [fd].reify = 1;
320		442
321	++fdchangecnt;	443	++fdchangecnt;
322	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	444	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
323	fdchanges [fdchangecnt - 1] = fd;	445	fdchanges [fdchangecnt - 1] = fd;
324	}	446	}
325		447
326	static void	448	static void
327	fd_kill (EV_P_ int fd)	449	fd_kill (EV_P_ int fd)
…		…
329	struct ev_io *w;	451	struct ev_io *w;
330		452
331	while ((w = (struct ev_io *)anfds [fd].head))	453	while ((w = (struct ev_io *)anfds [fd].head))
332	{	454	{
333	ev_io_stop (EV_A_ w);	455	ev_io_stop (EV_A_ w);
334	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	456	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
335	}	457	}
		458	}
		459
		460	static int
		461	fd_valid (int fd)
		462	{
		463	#ifdef _WIN32
		464	return _get_osfhandle (fd) != -1;
		465	#else
		466	return fcntl (fd, F_GETFD) != -1;
		467	#endif
336	}	468	}
337		469
338	/* called on EBADF to verify fds */	470	/* called on EBADF to verify fds */
339	static void	471	static void
340	fd_ebadf (EV_P)	472	fd_ebadf (EV_P)
341	{	473	{
342	int fd;	474	int fd;
343		475
344	for (fd = 0; fd < anfdmax; ++fd)	476	for (fd = 0; fd < anfdmax; ++fd)
345	if (anfds [fd].events)	477	if (anfds [fd].events)
346	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	478	if (!fd_valid (fd) == -1 && errno == EBADF)
347	fd_kill (EV_A_ fd);	479	fd_kill (EV_A_ fd);
348	}	480	}
349		481
350	/* called on ENOMEM in select/poll to kill some fds and retry */	482	/* called on ENOMEM in select/poll to kill some fds and retry */
351	static void	483	static void
352	fd_enomem (EV_P)	484	fd_enomem (EV_P)
353	{	485	{
354	int fd = anfdmax;	486	int fd;
355		487
356	while (fd--)	488	for (fd = anfdmax; fd--; )
357	if (anfds [fd].events)	489	if (anfds [fd].events)
358	{	490	{
359	close (fd);
360	fd_kill (EV_A_ fd);	491	fd_kill (EV_A_ fd);
361	return;	492	return;
362	}	493	}
363	}	494	}
364		495
365	/* susually called after fork if method needs to re-arm all fds from scratch */	496	/* usually called after fork if method needs to re-arm all fds from scratch */
366	static void	497	static void
367	fd_rearm_all (EV_P)	498	fd_rearm_all (EV_P)
368	{	499	{
369	int fd;	500	int fd;
370		501
…		…
385	WT w = heap [k];	516	WT w = heap [k];
386		517
387	while (k && heap [k >> 1]->at > w->at)	518	while (k && heap [k >> 1]->at > w->at)
388	{	519	{
389	heap [k] = heap [k >> 1];	520	heap [k] = heap [k >> 1];
390	heap [k]->active = k + 1;	521	((W)heap [k])->active = k + 1;
391	k >>= 1;	522	k >>= 1;
392	}	523	}
393		524
394	heap [k] = w;	525	heap [k] = w;
395	heap [k]->active = k + 1;	526	((W)heap [k])->active = k + 1;
396		527
397	}	528	}
398		529
399	static void	530	static void
400	downheap (WT *heap, int N, int k)	531	downheap (WT *heap, int N, int k)
…		…
410		541
411	if (w->at <= heap [j]->at)	542	if (w->at <= heap [j]->at)
412	break;	543	break;
413		544
414	heap [k] = heap [j];	545	heap [k] = heap [j];
415	heap [k]->active = k + 1;	546	((W)heap [k])->active = k + 1;
416	k = j;	547	k = j;
417	}	548	}
418		549
419	heap [k] = w;	550	heap [k] = w;
420	heap [k]->active = k + 1;	551	((W)heap [k])->active = k + 1;
		552	}
		553
		554	inline void
		555	adjustheap (WT *heap, int N, int k)
		556	{
		557	upheap (heap, k);
		558	downheap (heap, N, k);
421	}	559	}
422		560
423	/*****************************************************************************/	561	/*****************************************************************************/
424		562
425	typedef struct	563	typedef struct
426	{	564	{
427	struct ev_watcher_list *head;	565	WL head;
428	sig_atomic_t volatile gotsig;	566	sig_atomic_t volatile gotsig;
429	} ANSIG;	567	} ANSIG;
430		568
431	static ANSIG *signals;	569	static ANSIG *signals;
432	static int signalmax;	570	static int signalmax;
…		…
448	}	586	}
449		587
450	static void	588	static void
451	sighandler (int signum)	589	sighandler (int signum)
452	{	590	{
		591	#if _WIN32
		592	signal (signum, sighandler);
		593	#endif
		594
453	signals [signum - 1].gotsig = 1;	595	signals [signum - 1].gotsig = 1;
454		596
455	if (!gotsig)	597	if (!gotsig)
456	{	598	{
457	int old_errno = errno;	599	int old_errno = errno;
…		…
459	write (sigpipe [1], &signum, 1);	601	write (sigpipe [1], &signum, 1);
460	errno = old_errno;	602	errno = old_errno;
461	}	603	}
462	}	604	}
463		605
		606	void
		607	ev_feed_signal_event (EV_P_ int signum)
		608	{
		609	WL w;
		610
		611	#if EV_MULTIPLICITY
		612	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		613	#endif
		614
		615	--signum;
		616
		617	if (signum < 0 \|\| signum >= signalmax)
		618	return;
		619
		620	signals [signum].gotsig = 0;
		621
		622	for (w = signals [signum].head; w; w = w->next)
		623	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		624	}
		625
464	static void	626	static void
465	sigcb (EV_P_ struct ev_io *iow, int revents)	627	sigcb (EV_P_ struct ev_io *iow, int revents)
466	{	628	{
467	struct ev_watcher_list *w;
468	int signum;	629	int signum;
469		630
470	read (sigpipe [0], &revents, 1);	631	read (sigpipe [0], &revents, 1);
471	gotsig = 0;	632	gotsig = 0;
472		633
473	for (signum = signalmax; signum--; )	634	for (signum = signalmax; signum--; )
474	if (signals [signum].gotsig)	635	if (signals [signum].gotsig)
475	{	636	ev_feed_signal_event (EV_A_ signum + 1);
476	signals [signum].gotsig = 0;	637	}
477		638
478	for (w = signals [signum].head; w; w = w->next)	639	inline void
479	event (EV_A_ (W)w, EV_SIGNAL);	640	fd_intern (int fd)
480	}	641	{
		642	#ifdef _WIN32
		643	int arg = 1;
		644	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		645	#else
		646	fcntl (fd, F_SETFD, FD_CLOEXEC);
		647	fcntl (fd, F_SETFL, O_NONBLOCK);
		648	#endif
481	}	649	}
482		650
483	static void	651	static void
484	siginit (EV_P)	652	siginit (EV_P)
485	{	653	{
486	#ifndef WIN32	654	fd_intern (sigpipe [0]);
487	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	655	fd_intern (sigpipe [1]);
488	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
489
490	/* rather than sort out wether we really need nb, set it */
491	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
492	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
493	#endif
494		656
495	ev_io_set (&sigev, sigpipe [0], EV_READ);	657	ev_io_set (&sigev, sigpipe [0], EV_READ);
496	ev_io_start (EV_A_ &sigev);	658	ev_io_start (EV_A_ &sigev);
497	ev_unref (EV_A); /* child watcher should not keep loop alive */	659	ev_unref (EV_A); /* child watcher should not keep loop alive */
498	}	660	}
499		661
500	/*****************************************************************************/	662	/*****************************************************************************/
501		663
502	#ifndef WIN32
503
504	static struct ev_child *childs [PID_HASHSIZE];	664	static struct ev_child *childs [PID_HASHSIZE];
		665
		666	#ifndef _WIN32
		667
505	static struct ev_signal childev;	668	static struct ev_signal childev;
506		669
507	#ifndef WCONTINUED	670	#ifndef WCONTINUED
508	# define WCONTINUED 0	671	# define WCONTINUED 0
509	#endif	672	#endif
…		…
514	struct ev_child *w;	677	struct ev_child *w;
515		678
516	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)	679	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
517	if (w->pid == pid \|\| !w->pid)	680	if (w->pid == pid \|\| !w->pid)
518	{	681	{
519	w->priority = sw->priority; /* need to do it now */	682	ev_priority (w) = ev_priority (sw); /* need to do it now */
520	w->rpid = pid;	683	w->rpid = pid;
521	w->rstatus = status;	684	w->rstatus = status;
522	event (EV_A_ (W)w, EV_CHILD);	685	ev_feed_event (EV_A_ (W)w, EV_CHILD);
523	}	686	}
524	}	687	}
525		688
526	static void	689	static void
527	childcb (EV_P_ struct ev_signal *sw, int revents)	690	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
529	int pid, status;	692	int pid, status;
530		693
531	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	694	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
532	{	695	{
533	/* make sure we are called again until all childs have been reaped */	696	/* make sure we are called again until all childs have been reaped */
534	event (EV_A_ (W)sw, EV_SIGNAL);	697	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
535		698
536	child_reap (EV_A_ sw, pid, pid, status);	699	child_reap (EV_A_ sw, pid, pid, status);
537	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	700	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
538	}	701	}
539	}	702	}
…		…
569		732
570	/* return true if we are running with elevated privileges and should ignore env variables */	733	/* return true if we are running with elevated privileges and should ignore env variables */
571	static int	734	static int
572	enable_secure (void)	735	enable_secure (void)
573	{	736	{
574	#ifdef WIN32	737	#ifdef _WIN32
575	return 0;	738	return 0;
576	#else	739	#else
577	return getuid () != geteuid ()	740	return getuid () != geteuid ()
578	\|\| getgid () != getegid ();	741	\|\| getgid () != getegid ();
579	#endif	742	#endif
…		…
596	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	759	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
597	have_monotonic = 1;	760	have_monotonic = 1;
598	}	761	}
599	#endif	762	#endif
600		763
601	rt_now = ev_time ();	764	ev_rt_now = ev_time ();
602	mn_now = get_clock ();	765	mn_now = get_clock ();
603	now_floor = mn_now;	766	now_floor = mn_now;
604	rtmn_diff = rt_now - mn_now;	767	rtmn_diff = ev_rt_now - mn_now;
605		768
606	if (methods == EVMETHOD_AUTO)	769	if (methods == EVMETHOD_AUTO)
607	if (!enable_secure () && getenv ("LIBEV_METHODS"))	770	if (!enable_secure () && getenv ("LIBEV_METHODS"))
608	methods = atoi (getenv ("LIBEV_METHODS"));	771	methods = atoi (getenv ("LIBEV_METHODS"));
609	else	772	else
…		…
620	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	783	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
621	#endif	784	#endif
622	#if EV_USE_SELECT	785	#if EV_USE_SELECT
623	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	786	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
624	#endif	787	#endif
		788
		789	ev_init (&sigev, sigcb);
		790	ev_set_priority (&sigev, EV_MAXPRI);
625	}	791	}
626	}	792	}
627		793
628	void	794	void
629	loop_destroy (EV_P)	795	loop_destroy (EV_P)
630	{	796	{
		797	int i;
		798
631	#if EV_USE_KQUEUE	799	#if EV_USE_KQUEUE
632	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	800	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
633	#endif	801	#endif
634	#if EV_USE_EPOLL	802	#if EV_USE_EPOLL
635	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	803	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
…		…
639	#endif	807	#endif
640	#if EV_USE_SELECT	808	#if EV_USE_SELECT
641	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	809	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
642	#endif	810	#endif
643		811
		812	for (i = NUMPRI; i--; )
		813	array_free (pending, [i]);
		814
		815	/* have to use the microsoft-never-gets-it-right macro */
		816	array_free (fdchange, EMPTY);
		817	array_free (timer, EMPTY);
		818	#if EV_PERIODICS
		819	array_free (periodic, EMPTY);
		820	#endif
		821	array_free (idle, EMPTY);
		822	array_free (prepare, EMPTY);
		823	array_free (check, EMPTY);
		824
644	method = 0;	825	method = 0;
645	/TODO/
646	}	826	}
647		827
648	void	828	static void
649	loop_fork (EV_P)	829	loop_fork (EV_P)
650	{	830	{
651	/TODO/
652	#if EV_USE_EPOLL	831	#if EV_USE_EPOLL
653	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	832	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
654	#endif	833	#endif
655	#if EV_USE_KQUEUE	834	#if EV_USE_KQUEUE
656	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	835	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
657	#endif	836	#endif
		837
		838	if (ev_is_active (&sigev))
		839	{
		840	/* default loop */
		841
		842	ev_ref (EV_A);
		843	ev_io_stop (EV_A_ &sigev);
		844	close (sigpipe [0]);
		845	close (sigpipe [1]);
		846
		847	while (pipe (sigpipe))
		848	syserr ("(libev) error creating pipe");
		849
		850	siginit (EV_A);
		851	}
		852
		853	postfork = 0;
658	}	854	}
659		855
660	#if EV_MULTIPLICITY	856	#if EV_MULTIPLICITY
661	struct ev_loop *	857	struct ev_loop *
662	ev_loop_new (int methods)	858	ev_loop_new (int methods)
663	{	859	{
664	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	860	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		861
		862	memset (loop, 0, sizeof (struct ev_loop));
665		863
666	loop_init (EV_A_ methods);	864	loop_init (EV_A_ methods);
667		865
668	if (ev_method (EV_A))	866	if (ev_method (EV_A))
669	return loop;	867	return loop;
…		…
673		871
674	void	872	void
675	ev_loop_destroy (EV_P)	873	ev_loop_destroy (EV_P)
676	{	874	{
677	loop_destroy (EV_A);	875	loop_destroy (EV_A);
678	free (loop);	876	ev_free (loop);
679	}	877	}
680		878
681	void	879	void
682	ev_loop_fork (EV_P)	880	ev_loop_fork (EV_P)
683	{	881	{
684	loop_fork (EV_A);	882	postfork = 1;
685	}	883	}
686		884
687	#endif	885	#endif
688		886
689	#if EV_MULTIPLICITY	887	#if EV_MULTIPLICITY
690	struct ev_loop default_loop_struct;
691	static struct ev_loop *default_loop;
692
693	struct ev_loop *	888	struct ev_loop *
694	#else	889	#else
695	static int default_loop;
696
697	int	890	int
698	#endif	891	#endif
699	ev_default_loop (int methods)	892	ev_default_loop (int methods)
700	{	893	{
701	if (sigpipe [0] == sigpipe [1])	894	if (sigpipe [0] == sigpipe [1])
…		…
712		905
713	loop_init (EV_A_ methods);	906	loop_init (EV_A_ methods);
714		907
715	if (ev_method (EV_A))	908	if (ev_method (EV_A))
716	{	909	{
717	ev_watcher_init (&sigev, sigcb);
718	ev_set_priority (&sigev, EV_MAXPRI);
719	siginit (EV_A);	910	siginit (EV_A);
720		911
721	#ifndef WIN32	912	#ifndef _WIN32
722	ev_signal_init (&childev, childcb, SIGCHLD);	913	ev_signal_init (&childev, childcb, SIGCHLD);
723	ev_set_priority (&childev, EV_MAXPRI);	914	ev_set_priority (&childev, EV_MAXPRI);
724	ev_signal_start (EV_A_ &childev);	915	ev_signal_start (EV_A_ &childev);
725	ev_unref (EV_A); /* child watcher should not keep loop alive */	916	ev_unref (EV_A); /* child watcher should not keep loop alive */
726	#endif	917	#endif
…		…
737	{	928	{
738	#if EV_MULTIPLICITY	929	#if EV_MULTIPLICITY
739	struct ev_loop *loop = default_loop;	930	struct ev_loop *loop = default_loop;
740	#endif	931	#endif
741		932
		933	#ifndef _WIN32
742	ev_ref (EV_A); /* child watcher */	934	ev_ref (EV_A); /* child watcher */
743	ev_signal_stop (EV_A_ &childev);	935	ev_signal_stop (EV_A_ &childev);
		936	#endif
744		937
745	ev_ref (EV_A); /* signal watcher */	938	ev_ref (EV_A); /* signal watcher */
746	ev_io_stop (EV_A_ &sigev);	939	ev_io_stop (EV_A_ &sigev);
747		940
748	close (sigpipe [0]); sigpipe [0] = 0;	941	close (sigpipe [0]); sigpipe [0] = 0;
…		…
756	{	949	{
757	#if EV_MULTIPLICITY	950	#if EV_MULTIPLICITY
758	struct ev_loop *loop = default_loop;	951	struct ev_loop *loop = default_loop;
759	#endif	952	#endif
760		953
761	loop_fork (EV_A);	954	if (method)
762		955	postfork = 1;
763	ev_io_stop (EV_A_ &sigev);
764	close (sigpipe [0]);
765	close (sigpipe [1]);
766	pipe (sigpipe);
767
768	ev_ref (EV_A); /* signal watcher */
769	siginit (EV_A);
770	}	956	}
771		957
772	/*****************************************************************************/	958	/*****************************************************************************/
		959
		960	static int
		961	any_pending (EV_P)
		962	{
		963	int pri;
		964
		965	for (pri = NUMPRI; pri--; )
		966	if (pendingcnt [pri])
		967	return 1;
		968
		969	return 0;
		970	}
773		971
774	static void	972	static void
775	call_pending (EV_P)	973	call_pending (EV_P)
776	{	974	{
777	int pri;	975	int pri;
…		…
782	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	980	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
783		981
784	if (p->w)	982	if (p->w)
785	{	983	{
786	p->w->pending = 0;	984	p->w->pending = 0;
787	p->w->cb (EV_A_ p->w, p->events);	985	EV_CB_INVOKE (p->w, p->events);
788	}	986	}
789	}	987	}
790	}	988	}
791		989
792	static void	990	static void
793	timers_reify (EV_P)	991	timers_reify (EV_P)
794	{	992	{
795	while (timercnt && timers [0]->at <= mn_now)	993	while (timercnt && ((WT)timers [0])->at <= mn_now)
796	{	994	{
797	struct ev_timer *w = timers [0];	995	struct ev_timer *w = timers [0];
798		996
799	assert (("inactive timer on timer heap detected", ev_is_active (w)));	997	assert (("inactive timer on timer heap detected", ev_is_active (w)));
800		998
801	/* first reschedule or stop timer */	999	/* first reschedule or stop timer */
802	if (w->repeat)	1000	if (w->repeat)
803	{	1001	{
804	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1002	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1003
805	w->at = mn_now + w->repeat;	1004	((WT)w)->at += w->repeat;
		1005	if (((WT)w)->at < mn_now)
		1006	((WT)w)->at = mn_now;
		1007
806	downheap ((WT *)timers, timercnt, 0);	1008	downheap ((WT *)timers, timercnt, 0);
807	}	1009	}
808	else	1010	else
809	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1011	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
810		1012
811	event (EV_A_ (W)w, EV_TIMEOUT);	1013	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
812	}	1014	}
813	}	1015	}
814		1016
		1017	#if EV_PERIODICS
815	static void	1018	static void
816	periodics_reify (EV_P)	1019	periodics_reify (EV_P)
817	{	1020	{
818	while (periodiccnt && periodics [0]->at <= rt_now)	1021	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
819	{	1022	{
820	struct ev_periodic *w = periodics [0];	1023	struct ev_periodic *w = periodics [0];
821		1024
822	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1025	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
823		1026
824	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
825	if (w->interval)	1028	if (w->reschedule_cb)
826	{	1029	{
		1030	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1031
		1032	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1033	downheap ((WT *)periodics, periodiccnt, 0);
		1034	}
		1035	else if (w->interval)
		1036	{
827	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1037	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
828	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1038	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
829	downheap ((WT *)periodics, periodiccnt, 0);	1039	downheap ((WT *)periodics, periodiccnt, 0);
830	}	1040	}
831	else	1041	else
832	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1042	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
833		1043
834	event (EV_A_ (W)w, EV_PERIODIC);	1044	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
835	}	1045	}
836	}	1046	}
837		1047
838	static void	1048	static void
839	periodics_reschedule (EV_P)	1049	periodics_reschedule (EV_P)
…		…
843	/* adjust periodics after time jump */	1053	/* adjust periodics after time jump */
844	for (i = 0; i < periodiccnt; ++i)	1054	for (i = 0; i < periodiccnt; ++i)
845	{	1055	{
846	struct ev_periodic *w = periodics [i];	1056	struct ev_periodic *w = periodics [i];
847		1057
		1058	if (w->reschedule_cb)
		1059	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
848	if (w->interval)	1060	else if (w->interval)
849	{
850	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1061	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
851
852	if (fabs (diff) >= 1e-4)
853	{
854	ev_periodic_stop (EV_A_ w);
855	ev_periodic_start (EV_A_ w);
856
857	i = 0; /* restart loop, inefficient, but time jumps should be rare */
858	}
859	}
860	}	1062	}
		1063
		1064	/* now rebuild the heap */
		1065	for (i = periodiccnt >> 1; i--; )
		1066	downheap ((WT *)periodics, periodiccnt, i);
861	}	1067	}
		1068	#endif
862		1069
863	inline int	1070	inline int
864	time_update_monotonic (EV_P)	1071	time_update_monotonic (EV_P)
865	{	1072	{
866	mn_now = get_clock ();	1073	mn_now = get_clock ();
867		1074
868	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1075	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
869	{	1076	{
870	rt_now = rtmn_diff + mn_now;	1077	ev_rt_now = rtmn_diff + mn_now;
871	return 0;	1078	return 0;
872	}	1079	}
873	else	1080	else
874	{	1081	{
875	now_floor = mn_now;	1082	now_floor = mn_now;
876	rt_now = ev_time ();	1083	ev_rt_now = ev_time ();
877	return 1;	1084	return 1;
878	}	1085	}
879	}	1086	}
880		1087
881	static void	1088	static void
…		…
890	{	1097	{
891	ev_tstamp odiff = rtmn_diff;	1098	ev_tstamp odiff = rtmn_diff;
892		1099
893	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1100	for (i = 4; --i; ) /* loop a few times, before making important decisions */
894	{	1101	{
895	rtmn_diff = rt_now - mn_now;	1102	rtmn_diff = ev_rt_now - mn_now;
896		1103
897	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1104	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
898	return; /* all is well */	1105	return; /* all is well */
899		1106
900	rt_now = ev_time ();	1107	ev_rt_now = ev_time ();
901	mn_now = get_clock ();	1108	mn_now = get_clock ();
902	now_floor = mn_now;	1109	now_floor = mn_now;
903	}	1110	}
904		1111
		1112	# if EV_PERIODICS
905	periodics_reschedule (EV_A);	1113	periodics_reschedule (EV_A);
		1114	# endif
906	/* no timer adjustment, as the monotonic clock doesn't jump */	1115	/* no timer adjustment, as the monotonic clock doesn't jump */
907	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1116	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
908	}	1117	}
909	}	1118	}
910	else	1119	else
911	#endif	1120	#endif
912	{	1121	{
913	rt_now = ev_time ();	1122	ev_rt_now = ev_time ();
914		1123
915	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1124	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
916	{	1125	{
		1126	#if EV_PERIODICS
917	periodics_reschedule (EV_A);	1127	periodics_reschedule (EV_A);
		1128	#endif
918		1129
919	/* adjust timers. this is easy, as the offset is the same for all */	1130	/* adjust timers. this is easy, as the offset is the same for all */
920	for (i = 0; i < timercnt; ++i)	1131	for (i = 0; i < timercnt; ++i)
921	timers [i]->at += rt_now - mn_now;	1132	((WT)timers [i])->at += ev_rt_now - mn_now;
922	}	1133	}
923		1134
924	mn_now = rt_now;	1135	mn_now = ev_rt_now;
925	}	1136	}
926	}	1137	}
927		1138
928	void	1139	void
929	ev_ref (EV_P)	1140	ev_ref (EV_P)
…		…
952	{	1163	{
953	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1164	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
954	call_pending (EV_A);	1165	call_pending (EV_A);
955	}	1166	}
956		1167
		1168	/* we might have forked, so reify kernel state if necessary */
		1169	if (expect_false (postfork))
		1170	loop_fork (EV_A);
		1171
957	/* update fd-related kernel structures */	1172	/* update fd-related kernel structures */
958	fd_reify (EV_A);	1173	fd_reify (EV_A);
959		1174
960	/* calculate blocking time */	1175	/* calculate blocking time */
961		1176
962	/* we only need this for !monotonic clockor timers, but as we basically	1177	/* we only need this for !monotonic clock or timers, but as we basically
963	always have timers, we just calculate it always */	1178	always have timers, we just calculate it always */
964	#if EV_USE_MONOTONIC	1179	#if EV_USE_MONOTONIC
965	if (expect_true (have_monotonic))	1180	if (expect_true (have_monotonic))
966	time_update_monotonic (EV_A);	1181	time_update_monotonic (EV_A);
967	else	1182	else
968	#endif	1183	#endif
969	{	1184	{
970	rt_now = ev_time ();	1185	ev_rt_now = ev_time ();
971	mn_now = rt_now;	1186	mn_now = ev_rt_now;
972	}	1187	}
973		1188
974	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1189	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
975	block = 0.;	1190	block = 0.;
976	else	1191	else
977	{	1192	{
978	block = MAX_BLOCKTIME;	1193	block = MAX_BLOCKTIME;
979		1194
980	if (timercnt)	1195	if (timercnt)
981	{	1196	{
982	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1197	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
983	if (block > to) block = to;	1198	if (block > to) block = to;
984	}	1199	}
985		1200
		1201	#if EV_PERIODICS
986	if (periodiccnt)	1202	if (periodiccnt)
987	{	1203	{
988	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1204	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
989	if (block > to) block = to;	1205	if (block > to) block = to;
990	}	1206	}
		1207	#endif
991		1208
992	if (block < 0.) block = 0.;	1209	if (block < 0.) block = 0.;
993	}	1210	}
994		1211
995	method_poll (EV_A_ block);	1212	method_poll (EV_A_ block);
996		1213
997	/* update rt_now, do magic */	1214	/* update ev_rt_now, do magic */
998	time_update (EV_A);	1215	time_update (EV_A);
999		1216
1000	/* queue pending timers and reschedule them */	1217	/* queue pending timers and reschedule them */
1001	timers_reify (EV_A); /* relative timers called last */	1218	timers_reify (EV_A); /* relative timers called last */
		1219	#if EV_PERIODICS
1002	periodics_reify (EV_A); /* absolute timers called first */	1220	periodics_reify (EV_A); /* absolute timers called first */
		1221	#endif
1003		1222
1004	/* queue idle watchers unless io or timers are pending */	1223	/* queue idle watchers unless io or timers are pending */
1005	if (!pendingcnt)	1224	if (idlecnt && !any_pending (EV_A))
1006	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1225	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1007		1226
1008	/* queue check watchers, to be executed first */	1227	/* queue check watchers, to be executed first */
1009	if (checkcnt)	1228	if (checkcnt)
1010	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1229	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
…		…
1085	return;	1304	return;
1086		1305
1087	assert (("ev_io_start called with negative fd", fd >= 0));	1306	assert (("ev_io_start called with negative fd", fd >= 0));
1088		1307
1089	ev_start (EV_A_ (W)w, 1);	1308	ev_start (EV_A_ (W)w, 1);
1090	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1309	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1091	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1310	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1092		1311
1093	fd_change (EV_A_ fd);	1312	fd_change (EV_A_ fd);
1094	}	1313	}
1095		1314
…		…
1098	{	1317	{
1099	ev_clear_pending (EV_A_ (W)w);	1318	ev_clear_pending (EV_A_ (W)w);
1100	if (!ev_is_active (w))	1319	if (!ev_is_active (w))
1101	return;	1320	return;
1102		1321
		1322	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1323
1103	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1324	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1104	ev_stop (EV_A_ (W)w);	1325	ev_stop (EV_A_ (W)w);
1105		1326
1106	fd_change (EV_A_ w->fd);	1327	fd_change (EV_A_ w->fd);
1107	}	1328	}
…		…
1110	ev_timer_start (EV_P_ struct ev_timer *w)	1331	ev_timer_start (EV_P_ struct ev_timer *w)
1111	{	1332	{
1112	if (ev_is_active (w))	1333	if (ev_is_active (w))
1113	return;	1334	return;
1114		1335
1115	w->at += mn_now;	1336	((WT)w)->at += mn_now;
1116		1337
1117	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1338	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1118		1339
1119	ev_start (EV_A_ (W)w, ++timercnt);	1340	ev_start (EV_A_ (W)w, ++timercnt);
1120	array_needsize (timers, timermax, timercnt, );	1341	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
1121	timers [timercnt - 1] = w;	1342	timers [timercnt - 1] = w;
1122	upheap ((WT *)timers, timercnt - 1);	1343	upheap ((WT *)timers, timercnt - 1);
		1344
		1345	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1123	}	1346	}
1124		1347
1125	void	1348	void
1126	ev_timer_stop (EV_P_ struct ev_timer *w)	1349	ev_timer_stop (EV_P_ struct ev_timer *w)
1127	{	1350	{
1128	ev_clear_pending (EV_A_ (W)w);	1351	ev_clear_pending (EV_A_ (W)w);
1129	if (!ev_is_active (w))	1352	if (!ev_is_active (w))
1130	return;	1353	return;
1131		1354
		1355	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1356
1132	if (w->active < timercnt--)	1357	if (((W)w)->active < timercnt--)
1133	{	1358	{
1134	timers [w->active - 1] = timers [timercnt];	1359	timers [((W)w)->active - 1] = timers [timercnt];
1135	downheap ((WT *)timers, timercnt, w->active - 1);	1360	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1136	}	1361	}
1137		1362
1138	w->at = w->repeat;	1363	((WT)w)->at -= mn_now;
1139		1364
1140	ev_stop (EV_A_ (W)w);	1365	ev_stop (EV_A_ (W)w);
1141	}	1366	}
1142		1367
1143	void	1368	void
…		…
1145	{	1370	{
1146	if (ev_is_active (w))	1371	if (ev_is_active (w))
1147	{	1372	{
1148	if (w->repeat)	1373	if (w->repeat)
1149	{	1374	{
1150	w->at = mn_now + w->repeat;	1375	((WT)w)->at = mn_now + w->repeat;
1151	downheap ((WT *)timers, timercnt, w->active - 1);	1376	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1152	}	1377	}
1153	else	1378	else
1154	ev_timer_stop (EV_A_ w);	1379	ev_timer_stop (EV_A_ w);
1155	}	1380	}
1156	else if (w->repeat)	1381	else if (w->repeat)
1157	ev_timer_start (EV_A_ w);	1382	ev_timer_start (EV_A_ w);
1158	}	1383	}
1159		1384
		1385	#if EV_PERIODICS
1160	void	1386	void
1161	ev_periodic_start (EV_P_ struct ev_periodic *w)	1387	ev_periodic_start (EV_P_ struct ev_periodic *w)
1162	{	1388	{
1163	if (ev_is_active (w))	1389	if (ev_is_active (w))
1164	return;	1390	return;
1165		1391
		1392	if (w->reschedule_cb)
		1393	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1394	else if (w->interval)
		1395	{
1166	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1396	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1167
1168	/* this formula differs from the one in periodic_reify because we do not always round up */	1397	/* this formula differs from the one in periodic_reify because we do not always round up */
1169	if (w->interval)
1170	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1398	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1399	}
1171		1400
1172	ev_start (EV_A_ (W)w, ++periodiccnt);	1401	ev_start (EV_A_ (W)w, ++periodiccnt);
1173	array_needsize (periodics, periodicmax, periodiccnt, );	1402	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1174	periodics [periodiccnt - 1] = w;	1403	periodics [periodiccnt - 1] = w;
1175	upheap ((WT *)periodics, periodiccnt - 1);	1404	upheap ((WT *)periodics, periodiccnt - 1);
		1405
		1406	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1176	}	1407	}
1177		1408
1178	void	1409	void
1179	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1410	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1180	{	1411	{
1181	ev_clear_pending (EV_A_ (W)w);	1412	ev_clear_pending (EV_A_ (W)w);
1182	if (!ev_is_active (w))	1413	if (!ev_is_active (w))
1183	return;	1414	return;
1184		1415
		1416	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1417
1185	if (w->active < periodiccnt--)	1418	if (((W)w)->active < periodiccnt--)
1186	{	1419	{
1187	periodics [w->active - 1] = periodics [periodiccnt];	1420	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1188	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1421	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1189	}	1422	}
1190		1423
1191	ev_stop (EV_A_ (W)w);	1424	ev_stop (EV_A_ (W)w);
1192	}	1425	}
1193		1426
1194	void	1427	void
		1428	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1429	{
		1430	/* TODO: use adjustheap and recalculation */
		1431	ev_periodic_stop (EV_A_ w);
		1432	ev_periodic_start (EV_A_ w);
		1433	}
		1434	#endif
		1435
		1436	void
1195	ev_idle_start (EV_P_ struct ev_idle *w)	1437	ev_idle_start (EV_P_ struct ev_idle *w)
1196	{	1438	{
1197	if (ev_is_active (w))	1439	if (ev_is_active (w))
1198	return;	1440	return;
1199		1441
1200	ev_start (EV_A_ (W)w, ++idlecnt);	1442	ev_start (EV_A_ (W)w, ++idlecnt);
1201	array_needsize (idles, idlemax, idlecnt, );	1443	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
1202	idles [idlecnt - 1] = w;	1444	idles [idlecnt - 1] = w;
1203	}	1445	}
1204		1446
1205	void	1447	void
1206	ev_idle_stop (EV_P_ struct ev_idle *w)	1448	ev_idle_stop (EV_P_ struct ev_idle *w)
1207	{	1449	{
1208	ev_clear_pending (EV_A_ (W)w);	1450	ev_clear_pending (EV_A_ (W)w);
		1451	if (!ev_is_active (w))
		1452	return;
		1453
		1454	idles [((W)w)->active - 1] = idles [--idlecnt];
		1455	ev_stop (EV_A_ (W)w);
		1456	}
		1457
		1458	void
		1459	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1460	{
1209	if (ev_is_active (w))	1461	if (ev_is_active (w))
1210	return;	1462	return;
1211		1463
1212	idles [w->active - 1] = idles [--idlecnt];	1464	ev_start (EV_A_ (W)w, ++preparecnt);
		1465	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1466	prepares [preparecnt - 1] = w;
		1467	}
		1468
		1469	void
		1470	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1471	{
		1472	ev_clear_pending (EV_A_ (W)w);
		1473	if (!ev_is_active (w))
		1474	return;
		1475
		1476	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1213	ev_stop (EV_A_ (W)w);	1477	ev_stop (EV_A_ (W)w);
1214	}	1478	}
1215		1479
1216	void	1480	void
1217	ev_prepare_start (EV_P_ struct ev_prepare *w)	1481	ev_check_start (EV_P_ struct ev_check *w)
1218	{	1482	{
1219	if (ev_is_active (w))	1483	if (ev_is_active (w))
1220	return;	1484	return;
1221		1485
1222	ev_start (EV_A_ (W)w, ++preparecnt);	1486	ev_start (EV_A_ (W)w, ++checkcnt);
1223	array_needsize (prepares, preparemax, preparecnt, );	1487	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
1224	prepares [preparecnt - 1] = w;	1488	checks [checkcnt - 1] = w;
1225	}	1489	}
1226		1490
1227	void	1491	void
1228	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1492	ev_check_stop (EV_P_ struct ev_check *w)
1229	{	1493	{
1230	ev_clear_pending (EV_A_ (W)w);	1494	ev_clear_pending (EV_A_ (W)w);
1231	if (ev_is_active (w))	1495	if (!ev_is_active (w))
1232	return;	1496	return;
1233		1497
1234	prepares [w->active - 1] = prepares [--preparecnt];
1235	ev_stop (EV_A_ (W)w);
1236	}
1237
1238	void
1239	ev_check_start (EV_P_ struct ev_check *w)
1240	{
1241	if (ev_is_active (w))
1242	return;
1243
1244	ev_start (EV_A_ (W)w, ++checkcnt);
1245	array_needsize (checks, checkmax, checkcnt, );
1246	checks [checkcnt - 1] = w;
1247	}
1248
1249	void
1250	ev_check_stop (EV_P_ struct ev_check *w)
1251	{
1252	ev_clear_pending (EV_A_ (W)w);
1253	if (ev_is_active (w))
1254	return;
1255
1256	checks [w->active - 1] = checks [--checkcnt];	1498	checks [((W)w)->active - 1] = checks [--checkcnt];
1257	ev_stop (EV_A_ (W)w);	1499	ev_stop (EV_A_ (W)w);
1258	}	1500	}
1259		1501
1260	#ifndef SA_RESTART	1502	#ifndef SA_RESTART
1261	# define SA_RESTART 0	1503	# define SA_RESTART 0
…		…
1271	return;	1513	return;
1272		1514
1273	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1515	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1274		1516
1275	ev_start (EV_A_ (W)w, 1);	1517	ev_start (EV_A_ (W)w, 1);
1276	array_needsize (signals, signalmax, w->signum, signals_init);	1518	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1277	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1519	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1278		1520
1279	if (!w->next)	1521	if (!((WL)w)->next)
1280	{	1522	{
		1523	#if _WIN32
		1524	signal (w->signum, sighandler);
		1525	#else
1281	struct sigaction sa;	1526	struct sigaction sa;
1282	sa.sa_handler = sighandler;	1527	sa.sa_handler = sighandler;
1283	sigfillset (&sa.sa_mask);	1528	sigfillset (&sa.sa_mask);
1284	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1529	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1285	sigaction (w->signum, &sa, 0);	1530	sigaction (w->signum, &sa, 0);
		1531	#endif
1286	}	1532	}
1287	}	1533	}
1288		1534
1289	void	1535	void
1290	ev_signal_stop (EV_P_ struct ev_signal *w)	1536	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1315		1561
1316	void	1562	void
1317	ev_child_stop (EV_P_ struct ev_child *w)	1563	ev_child_stop (EV_P_ struct ev_child *w)
1318	{	1564	{
1319	ev_clear_pending (EV_A_ (W)w);	1565	ev_clear_pending (EV_A_ (W)w);
1320	if (ev_is_active (w))	1566	if (!ev_is_active (w))
1321	return;	1567	return;
1322		1568
1323	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1569	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1324	ev_stop (EV_A_ (W)w);	1570	ev_stop (EV_A_ (W)w);
1325	}	1571	}
…		…
1340	void (cb)(int revents, void arg) = once->cb;	1586	void (cb)(int revents, void arg) = once->cb;
1341	void *arg = once->arg;	1587	void *arg = once->arg;
1342		1588
1343	ev_io_stop (EV_A_ &once->io);	1589	ev_io_stop (EV_A_ &once->io);
1344	ev_timer_stop (EV_A_ &once->to);	1590	ev_timer_stop (EV_A_ &once->to);
1345	free (once);	1591	ev_free (once);
1346		1592
1347	cb (revents, arg);	1593	cb (revents, arg);
1348	}	1594	}
1349		1595
1350	static void	1596	static void
…		…
1360	}	1606	}
1361		1607
1362	void	1608	void
1363	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1609	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1364	{	1610	{
1365	struct ev_once *once = malloc (sizeof (struct ev_once));	1611	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1366		1612
1367	if (!once)	1613	if (!once)
1368	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1614	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1369	else	1615	else
1370	{	1616	{
1371	once->cb = cb;	1617	once->cb = cb;
1372	once->arg = arg;	1618	once->arg = arg;
1373		1619
1374	ev_watcher_init (&once->io, once_cb_io);	1620	ev_init (&once->io, once_cb_io);
1375	if (fd >= 0)	1621	if (fd >= 0)
1376	{	1622	{
1377	ev_io_set (&once->io, fd, events);	1623	ev_io_set (&once->io, fd, events);
1378	ev_io_start (EV_A_ &once->io);	1624	ev_io_start (EV_A_ &once->io);
1379	}	1625	}
1380		1626
1381	ev_watcher_init (&once->to, once_cb_to);	1627	ev_init (&once->to, once_cb_to);
1382	if (timeout >= 0.)	1628	if (timeout >= 0.)
1383	{	1629	{
1384	ev_timer_set (&once->to, timeout, 0.);	1630	ev_timer_set (&once->to, timeout, 0.);
1385	ev_timer_start (EV_A_ &once->to);	1631	ev_timer_start (EV_A_ &once->to);
1386	}	1632	}
1387	}	1633	}
1388	}	1634	}
1389		1635
		1636	#ifdef __cplusplus
		1637	}
		1638	#endif
		1639

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Comparing libev/ev.c (file contents): Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs. Revision 1.104 by root, Mon Nov 12 00:39:45 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.61 by root, Sun Nov 4 19:45:09 2007 UTC vs.
Revision 1.104 by root, Mon Nov 12 00:39:45 2007 UTC