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

Comparing libev/ev.c (file contents):
Revision 1.64 by root, Sun Nov 4 23:14:11 2007 UTC vs.
Revision 1.130 by root, Fri Nov 23 05:13:48 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
		46	# else
		47	# ifndef EV_USE_MONOTONIC
		48	# define EV_USE_MONOTONIC 0
		49	# endif
		50	# ifndef EV_USE_REALTIME
		51	# define EV_USE_REALTIME 0
		52	# endif
37	# endif	53	# endif
38		54
		55	# ifndef EV_USE_SELECT
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	56	# if HAVE_SELECT && HAVE_SYS_SELECT_H
40	# define EV_USE_SELECT 1	57	# define EV_USE_SELECT 1
		58	# else
		59	# define EV_USE_SELECT 0
		60	# endif
41	# endif	61	# endif
42		62
		63	# ifndef EV_USE_POLL
43	# if HAVE_POLL && HAVE_POLL_H	64	# if HAVE_POLL && HAVE_POLL_H
44	# define EV_USE_POLL 1	65	# define EV_USE_POLL 1
		66	# else
		67	# define EV_USE_POLL 0
		68	# endif
45	# endif	69	# endif
46		70
		71	# ifndef EV_USE_EPOLL
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	72	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
48	# define EV_USE_EPOLL 1	73	# define EV_USE_EPOLL 1
		74	# else
		75	# define EV_USE_EPOLL 0
		76	# endif
49	# endif	77	# endif
50		78
		79	# ifndef EV_USE_KQUEUE
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	80	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H
52	# define EV_USE_KQUEUE 1	81	# define EV_USE_KQUEUE 1
		82	# else
		83	# define EV_USE_KQUEUE 0
		84	# endif
		85	# endif
		86
		87	# ifndef EV_USE_PORT
		88	# if HAVE_PORT_H && HAVE_PORT_CREATE
		89	# define EV_USE_PORT 1
		90	# else
		91	# define EV_USE_PORT 0
		92	# endif
53	# endif	93	# endif
54		94
55	#endif	95	#endif
56		96
57	#include <math.h>	97	#include <math.h>
58	#include <stdlib.h>	98	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	99	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	100	#include <stddef.h>
63		101
64	#include <stdio.h>	102	#include <stdio.h>
65		103
66	#include <assert.h>	104	#include <assert.h>
67	#include <errno.h>	105	#include <errno.h>
68	#include <sys/types.h>	106	#include <sys/types.h>
		107	#include <time.h>
		108
		109	#include <signal.h>
		110
69	#ifndef WIN32	111	#ifndef _WIN32
		112	# include <unistd.h>
		113	# include <sys/time.h>
70	# include <sys/wait.h>	114	# include <sys/wait.h>
		115	#else
		116	# define WIN32_LEAN_AND_MEAN
		117	# include <windows.h>
		118	# ifndef EV_SELECT_IS_WINSOCKET
		119	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	120	# endif
72	#include <sys/time.h>	121	#endif
73	#include <time.h>
74		122
75	/**/	123	/**/
76		124
77	#ifndef EV_USE_MONOTONIC	125	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	126	# define EV_USE_MONOTONIC 0
		127	#endif
		128
		129	#ifndef EV_USE_REALTIME
		130	# define EV_USE_REALTIME 0
79	#endif	131	#endif
80		132
81	#ifndef EV_USE_SELECT	133	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	134	# define EV_USE_SELECT 1
83	#endif	135	#endif
84		136
85	#ifndef EV_USE_POLL	137	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	138	# ifdef _WIN32
		139	# define EV_USE_POLL 0
		140	# else
		141	# define EV_USE_POLL 1
		142	# endif
87	#endif	143	#endif
88		144
89	#ifndef EV_USE_EPOLL	145	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	146	# define EV_USE_EPOLL 0
91	#endif	147	#endif
92		148
93	#ifndef EV_USE_KQUEUE	149	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	150	# define EV_USE_KQUEUE 0
95	#endif	151	#endif
96		152
97	#ifndef EV_USE_WIN32
98	# ifdef WIN32
99	# define EV_USE_WIN32 1
100	# else
101	# define EV_USE_WIN32 0
102	# endif
103	#endif
104
105	#ifndef EV_USE_REALTIME	153	#ifndef EV_USE_PORT
106	# define EV_USE_REALTIME 1	154	# define EV_USE_PORT 0
107	#endif	155	#endif
108		156
109	/**/	157	/**/
110		158
111	#ifndef CLOCK_MONOTONIC	159	#ifndef CLOCK_MONOTONIC
…		…
116	#ifndef CLOCK_REALTIME	164	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	165	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	166	# define EV_USE_REALTIME 0
119	#endif	167	#endif
120		168
		169	#if EV_SELECT_IS_WINSOCKET
		170	# include <winsock.h>
		171	#endif
		172
121	/**/	173	/**/
122		174
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	175	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
124	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	176	#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
125	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	177	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
126	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */	178	/#define CLEANUP_INTERVAL (MAX_BLOCKTIME 5.) /* how often to try to free memory and re-check fds */
127		179
		180	#ifdef EV_H
		181	# include EV_H
		182	#else
128	#include "ev.h"	183	# include "ev.h"
		184	#endif
129		185
130	#if __GNUC__ >= 3	186	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	187	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	188	# define inline static inline
133	#else	189	#else
134	# define expect(expr,value) (expr)	190	# define expect(expr,value) (expr)
135	# define inline static	191	# define inline static
136	#endif	192	#endif
137		193
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	195	#define expect_true(expr) expect ((expr) != 0, 1)
140		196
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	197	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	198	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		199
		200	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		201	#define EMPTY2(a,b) /* used to suppress some warnings */
		202
144	typedef struct ev_watcher *W;	203	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	204	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	205	typedef struct ev_watcher_time *WT;
147		206
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	207	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		208
		209	#ifdef _WIN32
		210	# include "ev_win32.c"
		211	#endif
		212
150	/*****************************************************************************/	213	/*****************************************************************************/
151		214
		215	static void (syserr_cb)(const char msg);
		216
		217	void ev_set_syserr_cb (void (cb)(const char msg))
		218	{
		219	syserr_cb = cb;
		220	}
		221
		222	static void
		223	syserr (const char *msg)
		224	{
		225	if (!msg)
		226	msg = "(libev) system error";
		227
		228	if (syserr_cb)
		229	syserr_cb (msg);
		230	else
		231	{
		232	perror (msg);
		233	abort ();
		234	}
		235	}
		236
		237	static void (alloc)(void *ptr, long size);
		238
		239	void ev_set_allocator (void (cb)(void *ptr, long size))
		240	{
		241	alloc = cb;
		242	}
		243
		244	static void *
		245	ev_realloc (void *ptr, long size)
		246	{
		247	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		248
		249	if (!ptr && size)
		250	{
		251	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		252	abort ();
		253	}
		254
		255	return ptr;
		256	}
		257
		258	#define ev_malloc(size) ev_realloc (0, (size))
		259	#define ev_free(ptr) ev_realloc ((ptr), 0)
		260
		261	/*****************************************************************************/
		262
152	typedef struct	263	typedef struct
153	{	264	{
154	struct ev_watcher_list *head;	265	WL head;
155	unsigned char events;	266	unsigned char events;
156	unsigned char reify;	267	unsigned char reify;
		268	#if EV_SELECT_IS_WINSOCKET
		269	SOCKET handle;
		270	#endif
157	} ANFD;	271	} ANFD;
158		272
159	typedef struct	273	typedef struct
160	{	274	{
161	W w;	275	W w;
162	int events;	276	int events;
163	} ANPENDING;	277	} ANPENDING;
164		278
165	#if EV_MULTIPLICITY	279	#if EV_MULTIPLICITY
166		280
167	struct ev_loop	281	struct ev_loop
168	{	282	{
		283	ev_tstamp ev_rt_now;
		284	#define ev_rt_now ((loop)->ev_rt_now)
169	# define VAR(name,decl) decl;	285	#define VAR(name,decl) decl;
170	# include "ev_vars.h"	286	#include "ev_vars.h"
171	};
172	# undef VAR	287	#undef VAR
		288	};
173	# include "ev_wrap.h"	289	#include "ev_wrap.h"
		290
		291	static struct ev_loop default_loop_struct;
		292	struct ev_loop *ev_default_loop_ptr;
174		293
175	#else	294	#else
176		295
		296	ev_tstamp ev_rt_now;
177	# define VAR(name,decl) static decl;	297	#define VAR(name,decl) static decl;
178	# include "ev_vars.h"	298	#include "ev_vars.h"
179	# undef VAR	299	#undef VAR
		300
		301	static int ev_default_loop_ptr;
180		302
181	#endif	303	#endif
182		304
183	/*****************************************************************************/	305	/*****************************************************************************/
184		306
185	inline ev_tstamp	307	ev_tstamp
186	ev_time (void)	308	ev_time (void)
187	{	309	{
188	#if EV_USE_REALTIME	310	#if EV_USE_REALTIME
189	struct timespec ts;	311	struct timespec ts;
190	clock_gettime (CLOCK_REALTIME, &ts);	312	clock_gettime (CLOCK_REALTIME, &ts);
…		…
209	#endif	331	#endif
210		332
211	return ev_time ();	333	return ev_time ();
212	}	334	}
213		335
		336	#if EV_MULTIPLICITY
214	ev_tstamp	337	ev_tstamp
215	ev_now (EV_P)	338	ev_now (EV_P)
216	{	339	{
217	return rt_now;	340	return ev_rt_now;
218	}	341	}
		342	#endif
219		343
220	#define array_roundsize(base,n) ((n) \| 4 & ~3)	344	#define array_roundsize(type,n) (((n) \| 4) & ~3)
221		345
222	#define array_needsize(base,cur,cnt,init) \	346	#define array_needsize(type,base,cur,cnt,init) \
223	if (expect_false ((cnt) > cur)) \	347	if (expect_false ((cnt) > cur)) \
224	{ \	348	{ \
225	int newcnt = cur; \	349	int newcnt = cur; \
226	do \	350	do \
227	{ \	351	{ \
228	newcnt = array_roundsize (base, newcnt << 1); \	352	newcnt = array_roundsize (type, newcnt << 1); \
229	} \	353	} \
230	while ((cnt) > newcnt); \	354	while ((cnt) > newcnt); \
231	\	355	\
232	base = realloc (base, sizeof (base) (newcnt)); \	356	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
233	init (base + cur, newcnt - cur); \	357	init (base + cur, newcnt - cur); \
234	cur = newcnt; \	358	cur = newcnt; \
235	}	359	}
		360
		361	#define array_slim(type,stem) \
		362	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		363	{ \
		364	stem ## max = array_roundsize (stem ## cnt >> 1); \
		365	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		366	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		367	}
		368
		369	#define array_free(stem, idx) \
		370	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
236		371
237	/*****************************************************************************/	372	/*****************************************************************************/
238		373
239	static void	374	static void
240	anfds_init (ANFD *base, int count)	375	anfds_init (ANFD *base, int count)
…		…
247		382
248	++base;	383	++base;
249	}	384	}
250	}	385	}
251		386
252	static void	387	void
253	event (EV_P_ W w, int events)	388	ev_feed_event (EV_P_ void *w, int revents)
254	{	389	{
255	if (w->pending)	390	W w_ = (W)w;
		391
		392	if (expect_false (w_->pending))
256	{	393	{
257	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	394	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
258	return;	395	return;
259	}	396	}
260		397
261	w->pending = ++pendingcnt [ABSPRI (w)];	398	w_->pending = ++pendingcnt [ABSPRI (w_)];
262	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	399	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
263	pendings [ABSPRI (w)][w->pending - 1].w = w;	400	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
264	pendings [ABSPRI (w)][w->pending - 1].events = events;	401	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
265	}	402	}
266		403
267	static void	404	static void
268	queue_events (EV_P_ W *events, int eventcnt, int type)	405	queue_events (EV_P_ W *events, int eventcnt, int type)
269	{	406	{
270	int i;	407	int i;
271		408
272	for (i = 0; i < eventcnt; ++i)	409	for (i = 0; i < eventcnt; ++i)
273	event (EV_A_ events [i], type);	410	ev_feed_event (EV_A_ events [i], type);
274	}	411	}
275		412
276	static void	413	inline void
277	fd_event (EV_P_ int fd, int events)	414	fd_event (EV_P_ int fd, int revents)
278	{	415	{
279	ANFD *anfd = anfds + fd;	416	ANFD *anfd = anfds + fd;
280	struct ev_io *w;	417	struct ev_io *w;
281		418
282	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	419	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
283	{	420	{
284	int ev = w->events & events;	421	int ev = w->events & revents;
285		422
286	if (ev)	423	if (ev)
287	event (EV_A_ (W)w, ev);	424	ev_feed_event (EV_A_ (W)w, ev);
288	}	425	}
		426	}
		427
		428	void
		429	ev_feed_fd_event (EV_P_ int fd, int revents)
		430	{
		431	fd_event (EV_A_ fd, revents);
289	}	432	}
290		433
291	/*****************************************************************************/	434	/*****************************************************************************/
292		435
293	static void	436	inline void
294	fd_reify (EV_P)	437	fd_reify (EV_P)
295	{	438	{
296	int i;	439	int i;
297		440
298	for (i = 0; i < fdchangecnt; ++i)	441	for (i = 0; i < fdchangecnt; ++i)
…		…
304	int events = 0;	447	int events = 0;
305		448
306	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)	449	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
307	events \|= w->events;	450	events \|= w->events;
308		451
		452	#if EV_SELECT_IS_WINSOCKET
		453	if (events)
		454	{
		455	unsigned long argp;
		456	anfd->handle = _get_osfhandle (fd);
		457	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		458	}
		459	#endif
		460
309	anfd->reify = 0;	461	anfd->reify = 0;
310		462
311	method_modify (EV_A_ fd, anfd->events, events);	463	backend_modify (EV_A_ fd, anfd->events, events);
312	anfd->events = events;	464	anfd->events = events;
313	}	465	}
314		466
315	fdchangecnt = 0;	467	fdchangecnt = 0;
316	}	468	}
317		469
318	static void	470	static void
319	fd_change (EV_P_ int fd)	471	fd_change (EV_P_ int fd)
320	{	472	{
321	if (anfds [fd].reify \|\| fdchangecnt < 0)	473	if (expect_false (anfds [fd].reify))
322	return;	474	return;
323		475
324	anfds [fd].reify = 1;	476	anfds [fd].reify = 1;
325		477
326	++fdchangecnt;	478	++fdchangecnt;
327	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	479	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
328	fdchanges [fdchangecnt - 1] = fd;	480	fdchanges [fdchangecnt - 1] = fd;
329	}	481	}
330		482
331	static void	483	static void
332	fd_kill (EV_P_ int fd)	484	fd_kill (EV_P_ int fd)
…		…
334	struct ev_io *w;	486	struct ev_io *w;
335		487
336	while ((w = (struct ev_io *)anfds [fd].head))	488	while ((w = (struct ev_io *)anfds [fd].head))
337	{	489	{
338	ev_io_stop (EV_A_ w);	490	ev_io_stop (EV_A_ w);
339	event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);	491	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
340	}	492	}
		493	}
		494
		495	inline int
		496	fd_valid (int fd)
		497	{
		498	#ifdef _WIN32
		499	return _get_osfhandle (fd) != -1;
		500	#else
		501	return fcntl (fd, F_GETFD) != -1;
		502	#endif
341	}	503	}
342		504
343	/* called on EBADF to verify fds */	505	/* called on EBADF to verify fds */
344	static void	506	static void
345	fd_ebadf (EV_P)	507	fd_ebadf (EV_P)
346	{	508	{
347	int fd;	509	int fd;
348		510
349	for (fd = 0; fd < anfdmax; ++fd)	511	for (fd = 0; fd < anfdmax; ++fd)
350	if (anfds [fd].events)	512	if (anfds [fd].events)
351	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	513	if (!fd_valid (fd) == -1 && errno == EBADF)
352	fd_kill (EV_A_ fd);	514	fd_kill (EV_A_ fd);
353	}	515	}
354		516
355	/* called on ENOMEM in select/poll to kill some fds and retry */	517	/* called on ENOMEM in select/poll to kill some fds and retry */
356	static void	518	static void
…		…
359	int fd;	521	int fd;
360		522
361	for (fd = anfdmax; fd--; )	523	for (fd = anfdmax; fd--; )
362	if (anfds [fd].events)	524	if (anfds [fd].events)
363	{	525	{
364	close (fd);
365	fd_kill (EV_A_ fd);	526	fd_kill (EV_A_ fd);
366	return;	527	return;
367	}	528	}
368	}	529	}
369		530
370	/* susually called after fork if method needs to re-arm all fds from scratch */	531	/* usually called after fork if backend needs to re-arm all fds from scratch */
371	static void	532	static void
372	fd_rearm_all (EV_P)	533	fd_rearm_all (EV_P)
373	{	534	{
374	int fd;	535	int fd;
375		536
…		…
423		584
424	heap [k] = w;	585	heap [k] = w;
425	((W)heap [k])->active = k + 1;	586	((W)heap [k])->active = k + 1;
426	}	587	}
427		588
		589	inline void
		590	adjustheap (WT *heap, int N, int k)
		591	{
		592	upheap (heap, k);
		593	downheap (heap, N, k);
		594	}
		595
428	/*****************************************************************************/	596	/*****************************************************************************/
429		597
430	typedef struct	598	typedef struct
431	{	599	{
432	struct ev_watcher_list *head;	600	WL head;
433	sig_atomic_t volatile gotsig;	601	sig_atomic_t volatile gotsig;
434	} ANSIG;	602	} ANSIG;
435		603
436	static ANSIG *signals;	604	static ANSIG *signals;
437	static int signalmax;	605	static int signalmax;
…		…
453	}	621	}
454		622
455	static void	623	static void
456	sighandler (int signum)	624	sighandler (int signum)
457	{	625	{
		626	#if _WIN32
		627	signal (signum, sighandler);
		628	#endif
		629
458	signals [signum - 1].gotsig = 1;	630	signals [signum - 1].gotsig = 1;
459		631
460	if (!gotsig)	632	if (!gotsig)
461	{	633	{
462	int old_errno = errno;	634	int old_errno = errno;
…		…
464	write (sigpipe [1], &signum, 1);	636	write (sigpipe [1], &signum, 1);
465	errno = old_errno;	637	errno = old_errno;
466	}	638	}
467	}	639	}
468		640
		641	void
		642	ev_feed_signal_event (EV_P_ int signum)
		643	{
		644	WL w;
		645
		646	#if EV_MULTIPLICITY
		647	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		648	#endif
		649
		650	--signum;
		651
		652	if (signum < 0 \|\| signum >= signalmax)
		653	return;
		654
		655	signals [signum].gotsig = 0;
		656
		657	for (w = signals [signum].head; w; w = w->next)
		658	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		659	}
		660
469	static void	661	static void
470	sigcb (EV_P_ struct ev_io *iow, int revents)	662	sigcb (EV_P_ struct ev_io *iow, int revents)
471	{	663	{
472	struct ev_watcher_list *w;
473	int signum;	664	int signum;
474		665
475	read (sigpipe [0], &revents, 1);	666	read (sigpipe [0], &revents, 1);
476	gotsig = 0;	667	gotsig = 0;
477		668
478	for (signum = signalmax; signum--; )	669	for (signum = signalmax; signum--; )
479	if (signals [signum].gotsig)	670	if (signals [signum].gotsig)
480	{	671	ev_feed_signal_event (EV_A_ signum + 1);
481	signals [signum].gotsig = 0;	672	}
482		673
483	for (w = signals [signum].head; w; w = w->next)	674	static void
484	event (EV_A_ (W)w, EV_SIGNAL);	675	fd_intern (int fd)
485	}	676	{
		677	#ifdef _WIN32
		678	int arg = 1;
		679	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		680	#else
		681	fcntl (fd, F_SETFD, FD_CLOEXEC);
		682	fcntl (fd, F_SETFL, O_NONBLOCK);
		683	#endif
486	}	684	}
487		685
488	static void	686	static void
489	siginit (EV_P)	687	siginit (EV_P)
490	{	688	{
491	#ifndef WIN32	689	fd_intern (sigpipe [0]);
492	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	690	fd_intern (sigpipe [1]);
493	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
494
495	/* rather than sort out wether we really need nb, set it */
496	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
497	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
498	#endif
499		691
500	ev_io_set (&sigev, sigpipe [0], EV_READ);	692	ev_io_set (&sigev, sigpipe [0], EV_READ);
501	ev_io_start (EV_A_ &sigev);	693	ev_io_start (EV_A_ &sigev);
502	ev_unref (EV_A); /* child watcher should not keep loop alive */	694	ev_unref (EV_A); /* child watcher should not keep loop alive */
503	}	695	}
504		696
505	/*****************************************************************************/	697	/*****************************************************************************/
506		698
507	#ifndef WIN32
508
509	static struct ev_child *childs [PID_HASHSIZE];	699	static struct ev_child *childs [PID_HASHSIZE];
		700
		701	#ifndef _WIN32
		702
510	static struct ev_signal childev;	703	static struct ev_signal childev;
511		704
512	#ifndef WCONTINUED	705	#ifndef WCONTINUED
513	# define WCONTINUED 0	706	# define WCONTINUED 0
514	#endif	707	#endif
…		…
522	if (w->pid == pid \|\| !w->pid)	715	if (w->pid == pid \|\| !w->pid)
523	{	716	{
524	ev_priority (w) = ev_priority (sw); /* need to do it now */	717	ev_priority (w) = ev_priority (sw); /* need to do it now */
525	w->rpid = pid;	718	w->rpid = pid;
526	w->rstatus = status;	719	w->rstatus = status;
527	event (EV_A_ (W)w, EV_CHILD);	720	ev_feed_event (EV_A_ (W)w, EV_CHILD);
528	}	721	}
529	}	722	}
530		723
531	static void	724	static void
532	childcb (EV_P_ struct ev_signal *sw, int revents)	725	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
534	int pid, status;	727	int pid, status;
535		728
536	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	729	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
537	{	730	{
538	/* make sure we are called again until all childs have been reaped */	731	/* make sure we are called again until all childs have been reaped */
539	event (EV_A_ (W)sw, EV_SIGNAL);	732	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
540		733
541	child_reap (EV_A_ sw, pid, pid, status);	734	child_reap (EV_A_ sw, pid, pid, status);
542	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	735	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
543	}	736	}
544	}	737	}
545		738
546	#endif	739	#endif
547		740
548	/*****************************************************************************/	741	/*****************************************************************************/
549		742
		743	#if EV_USE_PORT
		744	# include "ev_port.c"
		745	#endif
550	#if EV_USE_KQUEUE	746	#if EV_USE_KQUEUE
551	# include "ev_kqueue.c"	747	# include "ev_kqueue.c"
552	#endif	748	#endif
553	#if EV_USE_EPOLL	749	#if EV_USE_EPOLL
554	# include "ev_epoll.c"	750	# include "ev_epoll.c"
…		…
574		770
575	/* return true if we are running with elevated privileges and should ignore env variables */	771	/* return true if we are running with elevated privileges and should ignore env variables */
576	static int	772	static int
577	enable_secure (void)	773	enable_secure (void)
578	{	774	{
579	#ifdef WIN32	775	#ifdef _WIN32
580	return 0;	776	return 0;
581	#else	777	#else
582	return getuid () != geteuid ()	778	return getuid () != geteuid ()
583	\|\| getgid () != getegid ();	779	\|\| getgid () != getegid ();
584	#endif	780	#endif
585	}	781	}
586		782
587	int	783	unsigned int
588	ev_method (EV_P)	784	ev_supported_backends (void)
589	{	785	{
590	return method;	786	unsigned int flags = 0;
591	}
592		787
593	static void	788	if (EV_USE_PORT ) flags \|= EVBACKEND_PORT;
594	loop_init (EV_P_ int methods)	789	if (EV_USE_KQUEUE) flags \|= EVBACKEND_KQUEUE;
		790	if (EV_USE_EPOLL ) flags \|= EVBACKEND_EPOLL;
		791	if (EV_USE_POLL ) flags \|= EVBACKEND_POLL;
		792	if (EV_USE_SELECT) flags \|= EVBACKEND_SELECT;
		793
		794	return flags;
		795	}
		796
		797	unsigned int
		798	ev_recommended_backends (void)
595	{	799	{
596	if (!method)	800	unsigned int flags = ev_recommended_backends ();
		801
		802	#ifndef __NetBSD__
		803	/* kqueue is borked on everything but netbsd apparently */
		804	/* it usually doesn't work correctly on anything but sockets and pipes */
		805	flags &= ~EVBACKEND_KQUEUE;
		806	#endif
		807	#ifdef __APPLE__
		808	// flags &= ~EVBACKEND_KQUEUE; for documentation
		809	flags &= ~EVBACKEND_POLL;
		810	#endif
		811
		812	return flags;
		813	}
		814
		815	unsigned int
		816	ev_backend (EV_P)
		817	{
		818	return backend;
		819	}
		820
		821	static void
		822	loop_init (EV_P_ unsigned int flags)
		823	{
		824	if (!backend)
597	{	825	{
598	#if EV_USE_MONOTONIC	826	#if EV_USE_MONOTONIC
599	{	827	{
600	struct timespec ts;	828	struct timespec ts;
601	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	829	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
602	have_monotonic = 1;	830	have_monotonic = 1;
603	}	831	}
604	#endif	832	#endif
605		833
606	rt_now = ev_time ();	834	ev_rt_now = ev_time ();
607	mn_now = get_clock ();	835	mn_now = get_clock ();
608	now_floor = mn_now;	836	now_floor = mn_now;
609	rtmn_diff = rt_now - mn_now;	837	rtmn_diff = ev_rt_now - mn_now;
610		838
611	if (methods == EVMETHOD_AUTO)	839	if (!(flags & EVFLAG_NOENV)
612	if (!enable_secure () && getenv ("LIBEV_METHODS"))	840	&& !enable_secure ()
		841	&& getenv ("LIBEV_FLAGS"))
613	methods = atoi (getenv ("LIBEV_METHODS"));	842	flags = atoi (getenv ("LIBEV_FLAGS"));
614	else
615	methods = EVMETHOD_ANY;
616		843
617	method = 0;	844	if (!(flags & 0x0000ffffUL))
618	#if EV_USE_WIN32	845	flags \|= ev_recommended_backends ();
619	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	846
		847	backend = 0;
		848	#if EV_USE_PORT
		849	if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
620	#endif	850	#endif
621	#if EV_USE_KQUEUE	851	#if EV_USE_KQUEUE
622	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	852	if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
623	#endif	853	#endif
624	#if EV_USE_EPOLL	854	#if EV_USE_EPOLL
625	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	855	if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
626	#endif	856	#endif
627	#if EV_USE_POLL	857	#if EV_USE_POLL
628	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	858	if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
629	#endif	859	#endif
630	#if EV_USE_SELECT	860	#if EV_USE_SELECT
631	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	861	if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
632	#endif	862	#endif
633	}
634	}
635		863
636	void	864	ev_init (&sigev, sigcb);
		865	ev_set_priority (&sigev, EV_MAXPRI);
		866	}
		867	}
		868
		869	static void
637	loop_destroy (EV_P)	870	loop_destroy (EV_P)
638	{	871	{
639	#if EV_USE_WIN32	872	int i;
640	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	873
		874	#if EV_USE_PORT
		875	if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
641	#endif	876	#endif
642	#if EV_USE_KQUEUE	877	#if EV_USE_KQUEUE
643	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	878	if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
644	#endif	879	#endif
645	#if EV_USE_EPOLL	880	#if EV_USE_EPOLL
646	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	881	if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
647	#endif	882	#endif
648	#if EV_USE_POLL	883	#if EV_USE_POLL
649	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	884	if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
650	#endif	885	#endif
651	#if EV_USE_SELECT	886	#if EV_USE_SELECT
652	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	887	if (backend == EVBACKEND_SELECT) select_destroy (EV_A);
653	#endif	888	#endif
654		889
655	method = 0;	890	for (i = NUMPRI; i--; )
656	/TODO/	891	array_free (pending, [i]);
657	}
658		892
659	void	893	/* have to use the microsoft-never-gets-it-right macro */
		894	array_free (fdchange, EMPTY0);
		895	array_free (timer, EMPTY0);
		896	#if EV_PERIODICS
		897	array_free (periodic, EMPTY0);
		898	#endif
		899	array_free (idle, EMPTY0);
		900	array_free (prepare, EMPTY0);
		901	array_free (check, EMPTY0);
		902
		903	backend = 0;
		904	}
		905
		906	static void
660	loop_fork (EV_P)	907	loop_fork (EV_P)
661	{	908	{
662	/TODO/	909	#if EV_USE_PORT
		910	if (backend == EVBACKEND_PORT ) port_fork (EV_A);
		911	#endif
		912	#if EV_USE_KQUEUE
		913	if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A);
		914	#endif
663	#if EV_USE_EPOLL	915	#if EV_USE_EPOLL
664	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	916	if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
665	#endif	917	#endif
666	#if EV_USE_KQUEUE	918
667	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	919	if (ev_is_active (&sigev))
668	#endif	920	{
		921	/* default loop */
		922
		923	ev_ref (EV_A);
		924	ev_io_stop (EV_A_ &sigev);
		925	close (sigpipe [0]);
		926	close (sigpipe [1]);
		927
		928	while (pipe (sigpipe))
		929	syserr ("(libev) error creating pipe");
		930
		931	siginit (EV_A);
		932	}
		933
		934	postfork = 0;
669	}	935	}
670		936
671	#if EV_MULTIPLICITY	937	#if EV_MULTIPLICITY
672	struct ev_loop *	938	struct ev_loop *
673	ev_loop_new (int methods)	939	ev_loop_new (unsigned int flags)
674	{	940	{
675	struct ev_loop loop = (struct ev_loop )calloc (1, sizeof (struct ev_loop));	941	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
676		942
		943	memset (loop, 0, sizeof (struct ev_loop));
		944
677	loop_init (EV_A_ methods);	945	loop_init (EV_A_ flags);
678		946
679	if (ev_method (EV_A))	947	if (ev_backend (EV_A))
680	return loop;	948	return loop;
681		949
682	return 0;	950	return 0;
683	}	951	}
684		952
685	void	953	void
686	ev_loop_destroy (EV_P)	954	ev_loop_destroy (EV_P)
687	{	955	{
688	loop_destroy (EV_A);	956	loop_destroy (EV_A);
689	free (loop);	957	ev_free (loop);
690	}	958	}
691		959
692	void	960	void
693	ev_loop_fork (EV_P)	961	ev_loop_fork (EV_P)
694	{	962	{
695	loop_fork (EV_A);	963	postfork = 1;
696	}	964	}
697		965
698	#endif	966	#endif
699		967
700	#if EV_MULTIPLICITY	968	#if EV_MULTIPLICITY
701	struct ev_loop default_loop_struct;
702	static struct ev_loop *default_loop;
703
704	struct ev_loop *	969	struct ev_loop *
		970	ev_default_loop_init (unsigned int flags)
705	#else	971	#else
706	static int default_loop;
707
708	int	972	int
		973	ev_default_loop (unsigned int flags)
709	#endif	974	#endif
710	ev_default_loop (int methods)
711	{	975	{
712	if (sigpipe [0] == sigpipe [1])	976	if (sigpipe [0] == sigpipe [1])
713	if (pipe (sigpipe))	977	if (pipe (sigpipe))
714	return 0;	978	return 0;
715		979
716	if (!default_loop)	980	if (!ev_default_loop_ptr)
717	{	981	{
718	#if EV_MULTIPLICITY	982	#if EV_MULTIPLICITY
719	struct ev_loop *loop = default_loop = &default_loop_struct;	983	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
720	#else	984	#else
721	default_loop = 1;	985	ev_default_loop_ptr = 1;
722	#endif	986	#endif
723		987
724	loop_init (EV_A_ methods);	988	loop_init (EV_A_ flags);
725		989
726	if (ev_method (EV_A))	990	if (ev_backend (EV_A))
727	{	991	{
728	ev_watcher_init (&sigev, sigcb);
729	ev_set_priority (&sigev, EV_MAXPRI);
730	siginit (EV_A);	992	siginit (EV_A);
731		993
732	#ifndef WIN32	994	#ifndef _WIN32
733	ev_signal_init (&childev, childcb, SIGCHLD);	995	ev_signal_init (&childev, childcb, SIGCHLD);
734	ev_set_priority (&childev, EV_MAXPRI);	996	ev_set_priority (&childev, EV_MAXPRI);
735	ev_signal_start (EV_A_ &childev);	997	ev_signal_start (EV_A_ &childev);
736	ev_unref (EV_A); /* child watcher should not keep loop alive */	998	ev_unref (EV_A); /* child watcher should not keep loop alive */
737	#endif	999	#endif
738	}	1000	}
739	else	1001	else
740	default_loop = 0;	1002	ev_default_loop_ptr = 0;
741	}	1003	}
742		1004
743	return default_loop;	1005	return ev_default_loop_ptr;
744	}	1006	}
745		1007
746	void	1008	void
747	ev_default_destroy (void)	1009	ev_default_destroy (void)
748	{	1010	{
749	#if EV_MULTIPLICITY	1011	#if EV_MULTIPLICITY
750	struct ev_loop *loop = default_loop;	1012	struct ev_loop *loop = ev_default_loop_ptr;
751	#endif	1013	#endif
752		1014
		1015	#ifndef _WIN32
753	ev_ref (EV_A); /* child watcher */	1016	ev_ref (EV_A); /* child watcher */
754	ev_signal_stop (EV_A_ &childev);	1017	ev_signal_stop (EV_A_ &childev);
		1018	#endif
755		1019
756	ev_ref (EV_A); /* signal watcher */	1020	ev_ref (EV_A); /* signal watcher */
757	ev_io_stop (EV_A_ &sigev);	1021	ev_io_stop (EV_A_ &sigev);
758		1022
759	close (sigpipe [0]); sigpipe [0] = 0;	1023	close (sigpipe [0]); sigpipe [0] = 0;
…		…
764		1028
765	void	1029	void
766	ev_default_fork (void)	1030	ev_default_fork (void)
767	{	1031	{
768	#if EV_MULTIPLICITY	1032	#if EV_MULTIPLICITY
769	struct ev_loop *loop = default_loop;	1033	struct ev_loop *loop = ev_default_loop_ptr;
770	#endif	1034	#endif
771		1035
772	loop_fork (EV_A);	1036	if (backend)
773		1037	postfork = 1;
774	ev_io_stop (EV_A_ &sigev);
775	close (sigpipe [0]);
776	close (sigpipe [1]);
777	pipe (sigpipe);
778
779	ev_ref (EV_A); /* signal watcher */
780	siginit (EV_A);
781	}	1038	}
782		1039
783	/*****************************************************************************/	1040	/*****************************************************************************/
784		1041
785	static void	1042	static int
		1043	any_pending (EV_P)
		1044	{
		1045	int pri;
		1046
		1047	for (pri = NUMPRI; pri--; )
		1048	if (pendingcnt [pri])
		1049	return 1;
		1050
		1051	return 0;
		1052	}
		1053
		1054	inline void
786	call_pending (EV_P)	1055	call_pending (EV_P)
787	{	1056	{
788	int pri;	1057	int pri;
789		1058
790	for (pri = NUMPRI; pri--; )	1059	for (pri = NUMPRI; pri--; )
791	while (pendingcnt [pri])	1060	while (pendingcnt [pri])
792	{	1061	{
793	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1062	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
794		1063
795	if (p->w)	1064	if (expect_true (p->w))
796	{	1065	{
797	p->w->pending = 0;	1066	p->w->pending = 0;
798		1067	EV_CB_INVOKE (p->w, p->events);
799	((void (*)(EV_P_ W, int))&p->w->cb) (EV_A_ p->w, p->events);
800	}	1068	}
801	}	1069	}
802	}	1070	}
803		1071
804	static void	1072	inline void
805	timers_reify (EV_P)	1073	timers_reify (EV_P)
806	{	1074	{
807	while (timercnt && ((WT)timers [0])->at <= mn_now)	1075	while (timercnt && ((WT)timers [0])->at <= mn_now)
808	{	1076	{
809	struct ev_timer *w = timers [0];	1077	struct ev_timer *w = timers [0];
…		…
812		1080
813	/* first reschedule or stop timer */	1081	/* first reschedule or stop timer */
814	if (w->repeat)	1082	if (w->repeat)
815	{	1083	{
816	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1084	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1085
817	((WT)w)->at = mn_now + w->repeat;	1086	((WT)w)->at += w->repeat;
		1087	if (((WT)w)->at < mn_now)
		1088	((WT)w)->at = mn_now;
		1089
818	downheap ((WT *)timers, timercnt, 0);	1090	downheap ((WT *)timers, timercnt, 0);
819	}	1091	}
820	else	1092	else
821	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1093	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
822		1094
823	event (EV_A_ (W)w, EV_TIMEOUT);	1095	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
824	}	1096	}
825	}	1097	}
826		1098
827	static void	1099	#if EV_PERIODICS
		1100	inline void
828	periodics_reify (EV_P)	1101	periodics_reify (EV_P)
829	{	1102	{
830	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1103	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
831	{	1104	{
832	struct ev_periodic *w = periodics [0];	1105	struct ev_periodic *w = periodics [0];
833		1106
834	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1107	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
835		1108
836	/* first reschedule or stop timer */	1109	/* first reschedule or stop timer */
837	if (w->interval)	1110	if (w->reschedule_cb)
838	{	1111	{
		1112	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1113	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1114	downheap ((WT *)periodics, periodiccnt, 0);
		1115	}
		1116	else if (w->interval)
		1117	{
839	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1118	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
840	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1119	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
841	downheap ((WT *)periodics, periodiccnt, 0);	1120	downheap ((WT *)periodics, periodiccnt, 0);
842	}	1121	}
843	else	1122	else
844	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1123	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
845		1124
846	event (EV_A_ (W)w, EV_PERIODIC);	1125	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
847	}	1126	}
848	}	1127	}
849		1128
850	static void	1129	static void
851	periodics_reschedule (EV_P)	1130	periodics_reschedule (EV_P)
…		…
855	/* adjust periodics after time jump */	1134	/* adjust periodics after time jump */
856	for (i = 0; i < periodiccnt; ++i)	1135	for (i = 0; i < periodiccnt; ++i)
857	{	1136	{
858	struct ev_periodic *w = periodics [i];	1137	struct ev_periodic *w = periodics [i];
859		1138
		1139	if (w->reschedule_cb)
		1140	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
860	if (w->interval)	1141	else if (w->interval)
861	{
862	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1142	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
863
864	if (fabs (diff) >= 1e-4)
865	{
866	ev_periodic_stop (EV_A_ w);
867	ev_periodic_start (EV_A_ w);
868
869	i = 0; /* restart loop, inefficient, but time jumps should be rare */
870	}
871	}
872	}	1143	}
		1144
		1145	/* now rebuild the heap */
		1146	for (i = periodiccnt >> 1; i--; )
		1147	downheap ((WT *)periodics, periodiccnt, i);
873	}	1148	}
		1149	#endif
874		1150
875	inline int	1151	inline int
876	time_update_monotonic (EV_P)	1152	time_update_monotonic (EV_P)
877	{	1153	{
878	mn_now = get_clock ();	1154	mn_now = get_clock ();
879		1155
880	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1156	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
881	{	1157	{
882	rt_now = rtmn_diff + mn_now;	1158	ev_rt_now = rtmn_diff + mn_now;
883	return 0;	1159	return 0;
884	}	1160	}
885	else	1161	else
886	{	1162	{
887	now_floor = mn_now;	1163	now_floor = mn_now;
888	rt_now = ev_time ();	1164	ev_rt_now = ev_time ();
889	return 1;	1165	return 1;
890	}	1166	}
891	}	1167	}
892		1168
893	static void	1169	inline void
894	time_update (EV_P)	1170	time_update (EV_P)
895	{	1171	{
896	int i;	1172	int i;
897		1173
898	#if EV_USE_MONOTONIC	1174	#if EV_USE_MONOTONIC
…		…
902	{	1178	{
903	ev_tstamp odiff = rtmn_diff;	1179	ev_tstamp odiff = rtmn_diff;
904		1180
905	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1181	for (i = 4; --i; ) /* loop a few times, before making important decisions */
906	{	1182	{
907	rtmn_diff = rt_now - mn_now;	1183	rtmn_diff = ev_rt_now - mn_now;
908		1184
909	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1185	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
910	return; /* all is well */	1186	return; /* all is well */
911		1187
912	rt_now = ev_time ();	1188	ev_rt_now = ev_time ();
913	mn_now = get_clock ();	1189	mn_now = get_clock ();
914	now_floor = mn_now;	1190	now_floor = mn_now;
915	}	1191	}
916		1192
		1193	# if EV_PERIODICS
917	periodics_reschedule (EV_A);	1194	periodics_reschedule (EV_A);
		1195	# endif
918	/* no timer adjustment, as the monotonic clock doesn't jump */	1196	/* no timer adjustment, as the monotonic clock doesn't jump */
919	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1197	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
920	}	1198	}
921	}	1199	}
922	else	1200	else
923	#endif	1201	#endif
924	{	1202	{
925	rt_now = ev_time ();	1203	ev_rt_now = ev_time ();
926		1204
927	if (expect_false (mn_now > rt_now \|\| mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1205	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
928	{	1206	{
		1207	#if EV_PERIODICS
929	periodics_reschedule (EV_A);	1208	periodics_reschedule (EV_A);
		1209	#endif
930		1210
931	/* adjust timers. this is easy, as the offset is the same for all */	1211	/* adjust timers. this is easy, as the offset is the same for all */
932	for (i = 0; i < timercnt; ++i)	1212	for (i = 0; i < timercnt; ++i)
933	((WT)timers [i])->at += rt_now - mn_now;	1213	((WT)timers [i])->at += ev_rt_now - mn_now;
934	}	1214	}
935		1215
936	mn_now = rt_now;	1216	mn_now = ev_rt_now;
937	}	1217	}
938	}	1218	}
939		1219
940	void	1220	void
941	ev_ref (EV_P)	1221	ev_ref (EV_P)
…		…
955	ev_loop (EV_P_ int flags)	1235	ev_loop (EV_P_ int flags)
956	{	1236	{
957	double block;	1237	double block;
958	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1238	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
959		1239
960	do	1240	while (activecnt)
961	{	1241	{
962	/* queue check watchers (and execute them) */	1242	/* queue check watchers (and execute them) */
963	if (expect_false (preparecnt))	1243	if (expect_false (preparecnt))
964	{	1244	{
965	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1245	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
966	call_pending (EV_A);	1246	call_pending (EV_A);
967	}	1247	}
968		1248
		1249	/* we might have forked, so reify kernel state if necessary */
		1250	if (expect_false (postfork))
		1251	loop_fork (EV_A);
		1252
969	/* update fd-related kernel structures */	1253	/* update fd-related kernel structures */
970	fd_reify (EV_A);	1254	fd_reify (EV_A);
971		1255
972	/* calculate blocking time */	1256	/* calculate blocking time */
973		1257
974	/* we only need this for !monotonic clockor timers, but as we basically	1258	/* we only need this for !monotonic clock or timers, but as we basically
975	always have timers, we just calculate it always */	1259	always have timers, we just calculate it always */
976	#if EV_USE_MONOTONIC	1260	#if EV_USE_MONOTONIC
977	if (expect_true (have_monotonic))	1261	if (expect_true (have_monotonic))
978	time_update_monotonic (EV_A);	1262	time_update_monotonic (EV_A);
979	else	1263	else
980	#endif	1264	#endif
981	{	1265	{
982	rt_now = ev_time ();	1266	ev_rt_now = ev_time ();
983	mn_now = rt_now;	1267	mn_now = ev_rt_now;
984	}	1268	}
985		1269
986	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1270	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
987	block = 0.;	1271	block = 0.;
988	else	1272	else
989	{	1273	{
990	block = MAX_BLOCKTIME;	1274	block = MAX_BLOCKTIME;
991		1275
992	if (timercnt)	1276	if (timercnt)
993	{	1277	{
994	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1278	ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge;
995	if (block > to) block = to;	1279	if (block > to) block = to;
996	}	1280	}
997		1281
		1282	#if EV_PERIODICS
998	if (periodiccnt)	1283	if (periodiccnt)
999	{	1284	{
1000	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1285	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge;
1001	if (block > to) block = to;	1286	if (block > to) block = to;
1002	}	1287	}
		1288	#endif
1003		1289
1004	if (block < 0.) block = 0.;	1290	if (expect_false (block < 0.)) block = 0.;
1005	}	1291	}
1006		1292
1007	method_poll (EV_A_ block);	1293	backend_poll (EV_A_ block);
1008		1294
1009	/* update rt_now, do magic */	1295	/* update ev_rt_now, do magic */
1010	time_update (EV_A);	1296	time_update (EV_A);
1011		1297
1012	/* queue pending timers and reschedule them */	1298	/* queue pending timers and reschedule them */
1013	timers_reify (EV_A); /* relative timers called last */	1299	timers_reify (EV_A); /* relative timers called last */
		1300	#if EV_PERIODICS
1014	periodics_reify (EV_A); /* absolute timers called first */	1301	periodics_reify (EV_A); /* absolute timers called first */
		1302	#endif
1015		1303
1016	/* queue idle watchers unless io or timers are pending */	1304	/* queue idle watchers unless io or timers are pending */
1017	if (!pendingcnt)	1305	if (idlecnt && !any_pending (EV_A))
1018	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1306	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1019		1307
1020	/* queue check watchers, to be executed first */	1308	/* queue check watchers, to be executed first */
1021	if (checkcnt)	1309	if (expect_false (checkcnt))
1022	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1310	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1023		1311
1024	call_pending (EV_A);	1312	call_pending (EV_A);
		1313
		1314	if (expect_false (loop_done))
		1315	break;
1025	}	1316	}
1026	while (activecnt && !loop_done);
1027		1317
1028	if (loop_done != 2)	1318	if (loop_done != 2)
1029	loop_done = 0;	1319	loop_done = 0;
1030	}	1320	}
1031		1321
…		…
1091	void	1381	void
1092	ev_io_start (EV_P_ struct ev_io *w)	1382	ev_io_start (EV_P_ struct ev_io *w)
1093	{	1383	{
1094	int fd = w->fd;	1384	int fd = w->fd;
1095		1385
1096	if (ev_is_active (w))	1386	if (expect_false (ev_is_active (w)))
1097	return;	1387	return;
1098		1388
1099	assert (("ev_io_start called with negative fd", fd >= 0));	1389	assert (("ev_io_start called with negative fd", fd >= 0));
1100		1390
1101	ev_start (EV_A_ (W)w, 1);	1391	ev_start (EV_A_ (W)w, 1);
1102	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1392	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1103	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1393	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1104		1394
1105	fd_change (EV_A_ fd);	1395	fd_change (EV_A_ fd);
1106	}	1396	}
1107		1397
1108	void	1398	void
1109	ev_io_stop (EV_P_ struct ev_io *w)	1399	ev_io_stop (EV_P_ struct ev_io *w)
1110	{	1400	{
1111	ev_clear_pending (EV_A_ (W)w);	1401	ev_clear_pending (EV_A_ (W)w);
1112	if (!ev_is_active (w))	1402	if (expect_false (!ev_is_active (w)))
1113	return;	1403	return;
		1404
		1405	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1114		1406
1115	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1407	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1116	ev_stop (EV_A_ (W)w);	1408	ev_stop (EV_A_ (W)w);
1117		1409
1118	fd_change (EV_A_ w->fd);	1410	fd_change (EV_A_ w->fd);
1119	}	1411	}
1120		1412
1121	void	1413	void
1122	ev_timer_start (EV_P_ struct ev_timer *w)	1414	ev_timer_start (EV_P_ struct ev_timer *w)
1123	{	1415	{
1124	if (ev_is_active (w))	1416	if (expect_false (ev_is_active (w)))
1125	return;	1417	return;
1126		1418
1127	((WT)w)->at += mn_now;	1419	((WT)w)->at += mn_now;
1128		1420
1129	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1421	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1130		1422
1131	ev_start (EV_A_ (W)w, ++timercnt);	1423	ev_start (EV_A_ (W)w, ++timercnt);
1132	array_needsize (timers, timermax, timercnt, );	1424	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1133	timers [timercnt - 1] = w;	1425	timers [timercnt - 1] = w;
1134	upheap ((WT *)timers, timercnt - 1);	1426	upheap ((WT *)timers, timercnt - 1);
1135		1427
1136	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1428	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1137	}	1429	}
1138		1430
1139	void	1431	void
1140	ev_timer_stop (EV_P_ struct ev_timer *w)	1432	ev_timer_stop (EV_P_ struct ev_timer *w)
1141	{	1433	{
1142	ev_clear_pending (EV_A_ (W)w);	1434	ev_clear_pending (EV_A_ (W)w);
1143	if (!ev_is_active (w))	1435	if (expect_false (!ev_is_active (w)))
1144	return;	1436	return;
1145		1437
1146	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1438	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1147		1439
1148	if (((W)w)->active < timercnt--)	1440	if (expect_true (((W)w)->active < timercnt--))
1149	{	1441	{
1150	timers [((W)w)->active - 1] = timers [timercnt];	1442	timers [((W)w)->active - 1] = timers [timercnt];
1151	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1443	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1152	}	1444	}
1153		1445
1154	((WT)w)->at = w->repeat;	1446	((WT)w)->at -= mn_now;
1155		1447
1156	ev_stop (EV_A_ (W)w);	1448	ev_stop (EV_A_ (W)w);
1157	}	1449	}
1158		1450
1159	void	1451	void
…		…
1162	if (ev_is_active (w))	1454	if (ev_is_active (w))
1163	{	1455	{
1164	if (w->repeat)	1456	if (w->repeat)
1165	{	1457	{
1166	((WT)w)->at = mn_now + w->repeat;	1458	((WT)w)->at = mn_now + w->repeat;
1167	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1459	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1168	}	1460	}
1169	else	1461	else
1170	ev_timer_stop (EV_A_ w);	1462	ev_timer_stop (EV_A_ w);
1171	}	1463	}
1172	else if (w->repeat)	1464	else if (w->repeat)
		1465	{
		1466	w->at = w->repeat;
1173	ev_timer_start (EV_A_ w);	1467	ev_timer_start (EV_A_ w);
		1468	}
1174	}	1469	}
1175		1470
		1471	#if EV_PERIODICS
1176	void	1472	void
1177	ev_periodic_start (EV_P_ struct ev_periodic *w)	1473	ev_periodic_start (EV_P_ struct ev_periodic *w)
1178	{	1474	{
1179	if (ev_is_active (w))	1475	if (expect_false (ev_is_active (w)))
1180	return;	1476	return;
1181		1477
		1478	if (w->reschedule_cb)
		1479	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1480	else if (w->interval)
		1481	{
1182	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1482	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1183
1184	/* this formula differs from the one in periodic_reify because we do not always round up */	1483	/* this formula differs from the one in periodic_reify because we do not always round up */
1185	if (w->interval)
1186	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1484	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1485	}
1187		1486
1188	ev_start (EV_A_ (W)w, ++periodiccnt);	1487	ev_start (EV_A_ (W)w, ++periodiccnt);
1189	array_needsize (periodics, periodicmax, periodiccnt, );	1488	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1190	periodics [periodiccnt - 1] = w;	1489	periodics [periodiccnt - 1] = w;
1191	upheap ((WT *)periodics, periodiccnt - 1);	1490	upheap ((WT *)periodics, periodiccnt - 1);
1192		1491
1193	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1492	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1194	}	1493	}
1195		1494
1196	void	1495	void
1197	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1496	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1198	{	1497	{
1199	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1200	if (!ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1201	return;	1500	return;
1202		1501
1203	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1502	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1204		1503
1205	if (((W)w)->active < periodiccnt--)	1504	if (expect_true (((W)w)->active < periodiccnt--))
1206	{	1505	{
1207	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1506	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1208	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1507	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1209	}	1508	}
1210		1509
1211	ev_stop (EV_A_ (W)w);	1510	ev_stop (EV_A_ (W)w);
1212	}	1511	}
1213		1512
1214	void	1513	void
		1514	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1515	{
		1516	/* TODO: use adjustheap and recalculation */
		1517	ev_periodic_stop (EV_A_ w);
		1518	ev_periodic_start (EV_A_ w);
		1519	}
		1520	#endif
		1521
		1522	void
1215	ev_idle_start (EV_P_ struct ev_idle *w)	1523	ev_idle_start (EV_P_ struct ev_idle *w)
1216	{	1524	{
1217	if (ev_is_active (w))	1525	if (expect_false (ev_is_active (w)))
1218	return;	1526	return;
1219		1527
1220	ev_start (EV_A_ (W)w, ++idlecnt);	1528	ev_start (EV_A_ (W)w, ++idlecnt);
1221	array_needsize (idles, idlemax, idlecnt, );	1529	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1222	idles [idlecnt - 1] = w;	1530	idles [idlecnt - 1] = w;
1223	}	1531	}
1224		1532
1225	void	1533	void
1226	ev_idle_stop (EV_P_ struct ev_idle *w)	1534	ev_idle_stop (EV_P_ struct ev_idle *w)
1227	{	1535	{
1228	ev_clear_pending (EV_A_ (W)w);	1536	ev_clear_pending (EV_A_ (W)w);
1229	if (ev_is_active (w))	1537	if (expect_false (!ev_is_active (w)))
1230	return;	1538	return;
1231		1539
1232	idles [((W)w)->active - 1] = idles [--idlecnt];	1540	idles [((W)w)->active - 1] = idles [--idlecnt];
1233	ev_stop (EV_A_ (W)w);	1541	ev_stop (EV_A_ (W)w);
1234	}	1542	}
1235		1543
1236	void	1544	void
1237	ev_prepare_start (EV_P_ struct ev_prepare *w)	1545	ev_prepare_start (EV_P_ struct ev_prepare *w)
1238	{	1546	{
1239	if (ev_is_active (w))	1547	if (expect_false (ev_is_active (w)))
1240	return;	1548	return;
1241		1549
1242	ev_start (EV_A_ (W)w, ++preparecnt);	1550	ev_start (EV_A_ (W)w, ++preparecnt);
1243	array_needsize (prepares, preparemax, preparecnt, );	1551	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1244	prepares [preparecnt - 1] = w;	1552	prepares [preparecnt - 1] = w;
1245	}	1553	}
1246		1554
1247	void	1555	void
1248	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1556	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1249	{	1557	{
1250	ev_clear_pending (EV_A_ (W)w);	1558	ev_clear_pending (EV_A_ (W)w);
1251	if (ev_is_active (w))	1559	if (expect_false (!ev_is_active (w)))
1252	return;	1560	return;
1253		1561
1254	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1562	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1255	ev_stop (EV_A_ (W)w);	1563	ev_stop (EV_A_ (W)w);
1256	}	1564	}
1257		1565
1258	void	1566	void
1259	ev_check_start (EV_P_ struct ev_check *w)	1567	ev_check_start (EV_P_ struct ev_check *w)
1260	{	1568	{
1261	if (ev_is_active (w))	1569	if (expect_false (ev_is_active (w)))
1262	return;	1570	return;
1263		1571
1264	ev_start (EV_A_ (W)w, ++checkcnt);	1572	ev_start (EV_A_ (W)w, ++checkcnt);
1265	array_needsize (checks, checkmax, checkcnt, );	1573	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1266	checks [checkcnt - 1] = w;	1574	checks [checkcnt - 1] = w;
1267	}	1575	}
1268		1576
1269	void	1577	void
1270	ev_check_stop (EV_P_ struct ev_check *w)	1578	ev_check_stop (EV_P_ struct ev_check *w)
1271	{	1579	{
1272	ev_clear_pending (EV_A_ (W)w);	1580	ev_clear_pending (EV_A_ (W)w);
1273	if (ev_is_active (w))	1581	if (expect_false (!ev_is_active (w)))
1274	return;	1582	return;
1275		1583
1276	checks [((W)w)->active - 1] = checks [--checkcnt];	1584	checks [((W)w)->active - 1] = checks [--checkcnt];
1277	ev_stop (EV_A_ (W)w);	1585	ev_stop (EV_A_ (W)w);
1278	}	1586	}
…		…
1283		1591
1284	void	1592	void
1285	ev_signal_start (EV_P_ struct ev_signal *w)	1593	ev_signal_start (EV_P_ struct ev_signal *w)
1286	{	1594	{
1287	#if EV_MULTIPLICITY	1595	#if EV_MULTIPLICITY
1288	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1596	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1289	#endif	1597	#endif
1290	if (ev_is_active (w))	1598	if (expect_false (ev_is_active (w)))
1291	return;	1599	return;
1292		1600
1293	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1601	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1294		1602
1295	ev_start (EV_A_ (W)w, 1);	1603	ev_start (EV_A_ (W)w, 1);
1296	array_needsize (signals, signalmax, w->signum, signals_init);	1604	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1297	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1605	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1298		1606
1299	if (!((WL)w)->next)	1607	if (!((WL)w)->next)
1300	{	1608	{
		1609	#if _WIN32
		1610	signal (w->signum, sighandler);
		1611	#else
1301	struct sigaction sa;	1612	struct sigaction sa;
1302	sa.sa_handler = sighandler;	1613	sa.sa_handler = sighandler;
1303	sigfillset (&sa.sa_mask);	1614	sigfillset (&sa.sa_mask);
1304	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1615	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1305	sigaction (w->signum, &sa, 0);	1616	sigaction (w->signum, &sa, 0);
		1617	#endif
1306	}	1618	}
1307	}	1619	}
1308		1620
1309	void	1621	void
1310	ev_signal_stop (EV_P_ struct ev_signal *w)	1622	ev_signal_stop (EV_P_ struct ev_signal *w)
1311	{	1623	{
1312	ev_clear_pending (EV_A_ (W)w);	1624	ev_clear_pending (EV_A_ (W)w);
1313	if (!ev_is_active (w))	1625	if (expect_false (!ev_is_active (w)))
1314	return;	1626	return;
1315		1627
1316	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1628	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1317	ev_stop (EV_A_ (W)w);	1629	ev_stop (EV_A_ (W)w);
1318		1630
…		…
1322		1634
1323	void	1635	void
1324	ev_child_start (EV_P_ struct ev_child *w)	1636	ev_child_start (EV_P_ struct ev_child *w)
1325	{	1637	{
1326	#if EV_MULTIPLICITY	1638	#if EV_MULTIPLICITY
1327	assert (("child watchers are only supported in the default loop", loop == default_loop));	1639	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1328	#endif	1640	#endif
1329	if (ev_is_active (w))	1641	if (expect_false (ev_is_active (w)))
1330	return;	1642	return;
1331		1643
1332	ev_start (EV_A_ (W)w, 1);	1644	ev_start (EV_A_ (W)w, 1);
1333	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1645	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1334	}	1646	}
1335		1647
1336	void	1648	void
1337	ev_child_stop (EV_P_ struct ev_child *w)	1649	ev_child_stop (EV_P_ struct ev_child *w)
1338	{	1650	{
1339	ev_clear_pending (EV_A_ (W)w);	1651	ev_clear_pending (EV_A_ (W)w);
1340	if (ev_is_active (w))	1652	if (expect_false (!ev_is_active (w)))
1341	return;	1653	return;
1342		1654
1343	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1655	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1344	ev_stop (EV_A_ (W)w);	1656	ev_stop (EV_A_ (W)w);
1345	}	1657	}
…		…
1360	void (cb)(int revents, void arg) = once->cb;	1672	void (cb)(int revents, void arg) = once->cb;
1361	void *arg = once->arg;	1673	void *arg = once->arg;
1362		1674
1363	ev_io_stop (EV_A_ &once->io);	1675	ev_io_stop (EV_A_ &once->io);
1364	ev_timer_stop (EV_A_ &once->to);	1676	ev_timer_stop (EV_A_ &once->to);
1365	free (once);	1677	ev_free (once);
1366		1678
1367	cb (revents, arg);	1679	cb (revents, arg);
1368	}	1680	}
1369		1681
1370	static void	1682	static void
…		…
1380	}	1692	}
1381		1693
1382	void	1694	void
1383	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1695	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1384	{	1696	{
1385	struct ev_once *once = malloc (sizeof (struct ev_once));	1697	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1386		1698
1387	if (!once)	1699	if (expect_false (!once))
		1700	{
1388	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1701	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1389	else	1702	return;
1390	{	1703	}
		1704
1391	once->cb = cb;	1705	once->cb = cb;
1392	once->arg = arg;	1706	once->arg = arg;
1393		1707
1394	ev_watcher_init (&once->io, once_cb_io);	1708	ev_init (&once->io, once_cb_io);
1395	if (fd >= 0)	1709	if (fd >= 0)
1396	{	1710	{
1397	ev_io_set (&once->io, fd, events);	1711	ev_io_set (&once->io, fd, events);
1398	ev_io_start (EV_A_ &once->io);	1712	ev_io_start (EV_A_ &once->io);
1399	}	1713	}
1400		1714
1401	ev_watcher_init (&once->to, once_cb_to);	1715	ev_init (&once->to, once_cb_to);
1402	if (timeout >= 0.)	1716	if (timeout >= 0.)
1403	{	1717	{
1404	ev_timer_set (&once->to, timeout, 0.);	1718	ev_timer_set (&once->to, timeout, 0.);
1405	ev_timer_start (EV_A_ &once->to);	1719	ev_timer_start (EV_A_ &once->to);
1406	}
1407	}	1720	}
1408	}	1721	}
1409		1722
		1723	#ifdef __cplusplus
		1724	}
		1725	#endif
		1726

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Comparing libev/ev.c (file contents): Revision 1.64 by root, Sun Nov 4 23:14:11 2007 UTC vs. Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.64 by root, Sun Nov 4 23:14:11 2007 UTC vs.
Revision 1.130 by root, Fri Nov 23 05:13:48 2007 UTC