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Comparing libev/ev.c (file contents):
Revision 1.68 by root, Mon Nov 5 20:19:00 2007 UTC vs.
Revision 1.123 by root, Sat Nov 17 02:23:54 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
		64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
		66	# endif
		67
55	#endif	68	#endif
56		69
57	#include <math.h>	70	#include <math.h>
58	#include <stdlib.h>	71	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	72	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	73	#include <stddef.h>
63		74
64	#include <stdio.h>	75	#include <stdio.h>
65		76
66	#include <assert.h>	77	#include <assert.h>
67	#include <errno.h>	78	#include <errno.h>
68	#include <sys/types.h>	79	#include <sys/types.h>
		80	#include <time.h>
		81
		82	#include <signal.h>
		83
69	#ifndef WIN32	84	#ifndef _WIN32
		85	# include <unistd.h>
		86	# include <sys/time.h>
70	# include <sys/wait.h>	87	# include <sys/wait.h>
		88	#else
		89	# define WIN32_LEAN_AND_MEAN
		90	# include <windows.h>
		91	# ifndef EV_SELECT_IS_WINSOCKET
		92	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	93	# endif
72	#include <sys/time.h>	94	#endif
73	#include <time.h>
74		95
75	/**/	96	/**/
76		97
77	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 0
		100	#endif
		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 0
79	#endif	104	#endif
80		105
81	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
83	#endif	108	#endif
84		109
85	#ifndef EV_USE_POLL	110	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	111	# ifdef _WIN32
		112	# define EV_USE_POLL 0
		113	# else
		114	# define EV_USE_POLL 1
		115	# endif
87	#endif	116	#endif
88		117
89	#ifndef EV_USE_EPOLL	118	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	119	# define EV_USE_EPOLL 0
91	#endif	120	#endif
92		121
93	#ifndef EV_USE_KQUEUE	122	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	123	# define EV_USE_KQUEUE 0
95	#endif	124	#endif
96		125
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	126	#ifndef EV_USE_PORT
106	# define EV_USE_REALTIME 1	127	# define EV_USE_PORT 0
107	#endif	128	#endif
108		129
109	/**/	130	/**/
		131
		132	/* darwin simply cannot be helped */
		133	#ifdef __APPLE__
		134	# undef EV_USE_POLL
		135	# undef EV_USE_KQUEUE
		136	#endif
110		137
111	#ifndef CLOCK_MONOTONIC	138	#ifndef CLOCK_MONOTONIC
112	# undef EV_USE_MONOTONIC	139	# undef EV_USE_MONOTONIC
113	# define EV_USE_MONOTONIC 0	140	# define EV_USE_MONOTONIC 0
114	#endif	141	#endif
…		…
116	#ifndef CLOCK_REALTIME	143	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	144	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	145	# define EV_USE_REALTIME 0
119	#endif	146	#endif
120		147
		148	#if EV_SELECT_IS_WINSOCKET
		149	# include <winsock.h>
		150	#endif
		151
121	/**/	152	/**/
122		153
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	154	#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) */	155	#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 */	156	#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 */	157	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
127		158
		159	#ifdef EV_H
		160	# include EV_H
		161	#else
128	#include "ev.h"	162	# include "ev.h"
		163	#endif
129		164
130	#if __GNUC__ >= 3	165	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	166	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	167	# define inline static inline
133	#else	168	#else
134	# define expect(expr,value) (expr)	169	# define expect(expr,value) (expr)
135	# define inline static	170	# define inline static
136	#endif	171	#endif
137		172
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	174	#define expect_true(expr) expect ((expr) != 0, 1)
140		175
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	176	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	177	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		178
		179	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		180	#define EMPTY2(a,b) /* used to suppress some warnings */
		181
144	typedef struct ev_watcher *W;	182	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	183	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	184	typedef struct ev_watcher_time *WT;
147		185
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	186	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		187
150	#if WIN32	188	#ifdef _WIN32
151	/* note: the comment below could not be substantiated, but what would I care */	189	# include "ev_win32.c"
152	/* MSDN says this is required to handle SIGFPE */
153	volatile double SIGFPE_REQ = 0.0f;
154	#endif	190	#endif
		191
		192	/*****************************************************************************/
		193
		194	static void (*syserr_cb)(const char *msg);
		195
		196	void ev_set_syserr_cb (void (*cb)(const char *msg))
		197	{
		198	syserr_cb = cb;
		199	}
		200
		201	static void
		202	syserr (const char *msg)
		203	{
		204	if (!msg)
		205	msg = "(libev) system error";
		206
		207	if (syserr_cb)
		208	syserr_cb (msg);
		209	else
		210	{
		211	perror (msg);
		212	abort ();
		213	}
		214	}
		215
		216	static void *(*alloc)(void *ptr, long size);
		217
		218	void ev_set_allocator (void *(*cb)(void *ptr, long size))
		219	{
		220	alloc = cb;
		221	}
		222
		223	static void *
		224	ev_realloc (void *ptr, long size)
		225	{
		226	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		227
		228	if (!ptr && size)
		229	{
		230	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		231	abort ();
		232	}
		233
		234	return ptr;
		235	}
		236
		237	#define ev_malloc(size) ev_realloc (0, (size))
		238	#define ev_free(ptr) ev_realloc ((ptr), 0)
155		239
156	/*****************************************************************************/	240	/*****************************************************************************/
157		241
158	typedef struct	242	typedef struct
159	{	243	{
160	WL head;	244	WL head;
161	unsigned char events;	245	unsigned char events;
162	unsigned char reify;	246	unsigned char reify;
		247	#if EV_SELECT_IS_WINSOCKET
		248	SOCKET handle;
		249	#endif
163	} ANFD;	250	} ANFD;
164		251
165	typedef struct	252	typedef struct
166	{	253	{
167	W w;	254	W w;
168	int events;	255	int events;
169	} ANPENDING;	256	} ANPENDING;
170		257
171	#if EV_MULTIPLICITY	258	#if EV_MULTIPLICITY
172		259
173	struct ev_loop	260	struct ev_loop
174	{	261	{
		262	ev_tstamp ev_rt_now;
		263	#define ev_rt_now ((loop)->ev_rt_now)
175	# define VAR(name,decl) decl;	264	#define VAR(name,decl) decl;
176	# include "ev_vars.h"	265	#include "ev_vars.h"
177	};
178	# undef VAR	266	#undef VAR
		267	};
179	# include "ev_wrap.h"	268	#include "ev_wrap.h"
		269
		270	static struct ev_loop default_loop_struct;
		271	struct ev_loop *ev_default_loop_ptr;
180		272
181	#else	273	#else
182		274
		275	ev_tstamp ev_rt_now;
183	# define VAR(name,decl) static decl;	276	#define VAR(name,decl) static decl;
184	# include "ev_vars.h"	277	#include "ev_vars.h"
185	# undef VAR	278	#undef VAR
		279
		280	static int ev_default_loop_ptr;
186		281
187	#endif	282	#endif
188		283
189	/*****************************************************************************/	284	/*****************************************************************************/
190		285
191	inline ev_tstamp	286	ev_tstamp
192	ev_time (void)	287	ev_time (void)
193	{	288	{
194	#if EV_USE_REALTIME	289	#if EV_USE_REALTIME
195	struct timespec ts;	290	struct timespec ts;
196	clock_gettime (CLOCK_REALTIME, &ts);	291	clock_gettime (CLOCK_REALTIME, &ts);
…		…
215	#endif	310	#endif
216		311
217	return ev_time ();	312	return ev_time ();
218	}	313	}
219		314
		315	#if EV_MULTIPLICITY
220	ev_tstamp	316	ev_tstamp
221	ev_now (EV_P)	317	ev_now (EV_P)
222	{	318	{
223	return rt_now;	319	return ev_rt_now;
224	}	320	}
		321	#endif
225		322
226	#define array_roundsize(base,n) ((n) | 4 & ~3)	323	#define array_roundsize(type,n) (((n) | 4) & ~3)
227		324
228	#define array_needsize(base,cur,cnt,init) \	325	#define array_needsize(type,base,cur,cnt,init) \
229	if (expect_false ((cnt) > cur)) \	326	if (expect_false ((cnt) > cur)) \
230	{ \	327	{ \
231	int newcnt = cur; \	328	int newcnt = cur; \
232	do \	329	do \
233	{ \	330	{ \
234	newcnt = array_roundsize (base, newcnt << 1); \	331	newcnt = array_roundsize (type, newcnt << 1); \
235	} \	332	} \
236	while ((cnt) > newcnt); \	333	while ((cnt) > newcnt); \
237	\	334	\
238	base = realloc (base, sizeof (*base) * (newcnt)); \	335	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
239	init (base + cur, newcnt - cur); \	336	init (base + cur, newcnt - cur); \
240	cur = newcnt; \	337	cur = newcnt; \
241	}	338	}
242		339
243	#define array_slim(stem) \	340	#define array_slim(type,stem) \
244	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	341	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
245	{ \	342	{ \
246	stem ## max = array_roundsize (stem ## cnt >> 1); \	343	stem ## max = array_roundsize (stem ## cnt >> 1); \
247	base = realloc (base, sizeof (*base) * (stem ## max)); \	344	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
248	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	345	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
249	}	346	}
250		347
251	#define array_free(stem, idx) \	348	#define array_free(stem, idx) \
252	free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	349	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
253		350
254	/*****************************************************************************/	351	/*****************************************************************************/
255		352
256	static void	353	static void
257	anfds_init (ANFD *base, int count)	354	anfds_init (ANFD *base, int count)
…		…
264		361
265	++base;	362	++base;
266	}	363	}
267	}	364	}
268		365
269	static void	366	void
270	event (EV_P_ W w, int events)	367	ev_feed_event (EV_P_ void *w, int revents)
271	{	368	{
272	if (w->pending)	369	W w_ = (W)w;
		370
		371	if (expect_false (w_->pending))
273	{	372	{
274	pendings [ABSPRI (w)][w->pending - 1].events |= events;	373	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
275	return;	374	return;
276	}	375	}
277		376
278	w->pending = ++pendingcnt [ABSPRI (w)];	377	w_->pending = ++pendingcnt [ABSPRI (w_)];
279	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	378	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
280	pendings [ABSPRI (w)][w->pending - 1].w = w;	379	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
281	pendings [ABSPRI (w)][w->pending - 1].events = events;	380	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
282	}	381	}
283		382
284	static void	383	static void
285	queue_events (EV_P_ W *events, int eventcnt, int type)	384	queue_events (EV_P_ W *events, int eventcnt, int type)
286	{	385	{
287	int i;	386	int i;
288		387
289	for (i = 0; i < eventcnt; ++i)	388	for (i = 0; i < eventcnt; ++i)
290	event (EV_A_ events [i], type);	389	ev_feed_event (EV_A_ events [i], type);
291	}	390	}
292		391
293	static void	392	inline void
294	fd_event (EV_P_ int fd, int events)	393	fd_event (EV_P_ int fd, int revents)
295	{	394	{
296	ANFD *anfd = anfds + fd;	395	ANFD *anfd = anfds + fd;
297	struct ev_io *w;	396	struct ev_io *w;
298		397
299	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	398	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
300	{	399	{
301	int ev = w->events & events;	400	int ev = w->events & revents;
302		401
303	if (ev)	402	if (ev)
304	event (EV_A_ (W)w, ev);	403	ev_feed_event (EV_A_ (W)w, ev);
305	}	404	}
		405	}
		406
		407	void
		408	ev_feed_fd_event (EV_P_ int fd, int revents)
		409	{
		410	fd_event (EV_A_ fd, revents);
306	}	411	}
307		412
308	/*****************************************************************************/	413	/*****************************************************************************/
309		414
310	static void	415	inline void
311	fd_reify (EV_P)	416	fd_reify (EV_P)
312	{	417	{
313	int i;	418	int i;
314		419
315	for (i = 0; i < fdchangecnt; ++i)	420	for (i = 0; i < fdchangecnt; ++i)
…		…
321	int events = 0;	426	int events = 0;
322		427
323	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	428	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
324	events |= w->events;	429	events |= w->events;
325		430
		431	#if EV_SELECT_IS_WINSOCKET
		432	if (events)
		433	{
		434	unsigned long argp;
		435	anfd->handle = _get_osfhandle (fd);
		436	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		437	}
		438	#endif
		439
326	anfd->reify = 0;	440	anfd->reify = 0;
327		441
328	method_modify (EV_A_ fd, anfd->events, events);	442	method_modify (EV_A_ fd, anfd->events, events);
329	anfd->events = events;	443	anfd->events = events;
330	}	444	}
…		…
333	}	447	}
334		448
335	static void	449	static void
336	fd_change (EV_P_ int fd)	450	fd_change (EV_P_ int fd)
337	{	451	{
338	if (anfds [fd].reify || fdchangecnt < 0)	452	if (expect_false (anfds [fd].reify))
339	return;	453	return;
340		454
341	anfds [fd].reify = 1;	455	anfds [fd].reify = 1;
342		456
343	++fdchangecnt;	457	++fdchangecnt;
344	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	458	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
345	fdchanges [fdchangecnt - 1] = fd;	459	fdchanges [fdchangecnt - 1] = fd;
346	}	460	}
347		461
348	static void	462	static void
349	fd_kill (EV_P_ int fd)	463	fd_kill (EV_P_ int fd)
…		…
351	struct ev_io *w;	465	struct ev_io *w;
352		466
353	while ((w = (struct ev_io *)anfds [fd].head))	467	while ((w = (struct ev_io *)anfds [fd].head))
354	{	468	{
355	ev_io_stop (EV_A_ w);	469	ev_io_stop (EV_A_ w);
356	event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	470	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
357	}	471	}
		472	}
		473
		474	inline int
		475	fd_valid (int fd)
		476	{
		477	#ifdef _WIN32
		478	return _get_osfhandle (fd) != -1;
		479	#else
		480	return fcntl (fd, F_GETFD) != -1;
		481	#endif
358	}	482	}
359		483
360	/* called on EBADF to verify fds */	484	/* called on EBADF to verify fds */
361	static void	485	static void
362	fd_ebadf (EV_P)	486	fd_ebadf (EV_P)
363	{	487	{
364	int fd;	488	int fd;
365		489
366	for (fd = 0; fd < anfdmax; ++fd)	490	for (fd = 0; fd < anfdmax; ++fd)
367	if (anfds [fd].events)	491	if (anfds [fd].events)
368	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	492	if (!fd_valid (fd) == -1 && errno == EBADF)
369	fd_kill (EV_A_ fd);	493	fd_kill (EV_A_ fd);
370	}	494	}
371		495
372	/* called on ENOMEM in select/poll to kill some fds and retry */	496	/* called on ENOMEM in select/poll to kill some fds and retry */
373	static void	497	static void
…		…
381	fd_kill (EV_A_ fd);	505	fd_kill (EV_A_ fd);
382	return;	506	return;
383	}	507	}
384	}	508	}
385		509
386	/* susually called after fork if method needs to re-arm all fds from scratch */	510	/* usually called after fork if method needs to re-arm all fds from scratch */
387	static void	511	static void
388	fd_rearm_all (EV_P)	512	fd_rearm_all (EV_P)
389	{	513	{
390	int fd;	514	int fd;
391		515
…		…
439		563
440	heap [k] = w;	564	heap [k] = w;
441	((W)heap [k])->active = k + 1;	565	((W)heap [k])->active = k + 1;
442	}	566	}
443		567
		568	inline void
		569	adjustheap (WT *heap, int N, int k)
		570	{
		571	upheap (heap, k);
		572	downheap (heap, N, k);
		573	}
		574
444	/*****************************************************************************/	575	/*****************************************************************************/
445		576
446	typedef struct	577	typedef struct
447	{	578	{
448	WL head;	579	WL head;
…		…
469	}	600	}
470		601
471	static void	602	static void
472	sighandler (int signum)	603	sighandler (int signum)
473	{	604	{
474	#if WIN32	605	#if _WIN32
475	signal (signum, sighandler);	606	signal (signum, sighandler);
476	#endif	607	#endif
477		608
478	signals [signum - 1].gotsig = 1;	609	signals [signum - 1].gotsig = 1;
479		610
…		…
484	write (sigpipe [1], &signum, 1);	615	write (sigpipe [1], &signum, 1);
485	errno = old_errno;	616	errno = old_errno;
486	}	617	}
487	}	618	}
488		619
		620	void
		621	ev_feed_signal_event (EV_P_ int signum)
		622	{
		623	WL w;
		624
		625	#if EV_MULTIPLICITY
		626	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		627	#endif
		628
		629	--signum;
		630
		631	if (signum < 0 || signum >= signalmax)
		632	return;
		633
		634	signals [signum].gotsig = 0;
		635
		636	for (w = signals [signum].head; w; w = w->next)
		637	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		638	}
		639
489	static void	640	static void
490	sigcb (EV_P_ struct ev_io *iow, int revents)	641	sigcb (EV_P_ struct ev_io *iow, int revents)
491	{	642	{
492	WL w;
493	int signum;	643	int signum;
494		644
495	read (sigpipe [0], &revents, 1);	645	read (sigpipe [0], &revents, 1);
496	gotsig = 0;	646	gotsig = 0;
497		647
498	for (signum = signalmax; signum--; )	648	for (signum = signalmax; signum--; )
499	if (signals [signum].gotsig)	649	if (signals [signum].gotsig)
500	{	650	ev_feed_signal_event (EV_A_ signum + 1);
501	signals [signum].gotsig = 0;	651	}
502		652
503	for (w = signals [signum].head; w; w = w->next)	653	static void
504	event (EV_A_ (W)w, EV_SIGNAL);	654	fd_intern (int fd)
505	}	655	{
		656	#ifdef _WIN32
		657	int arg = 1;
		658	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		659	#else
		660	fcntl (fd, F_SETFD, FD_CLOEXEC);
		661	fcntl (fd, F_SETFL, O_NONBLOCK);
		662	#endif
506	}	663	}
507		664
508	static void	665	static void
509	siginit (EV_P)	666	siginit (EV_P)
510	{	667	{
511	#ifndef WIN32	668	fd_intern (sigpipe [0]);
512	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	669	fd_intern (sigpipe [1]);
513	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
514
515	/* rather than sort out wether we really need nb, set it */
516	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
517	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
518	#endif
519		670
520	ev_io_set (&sigev, sigpipe [0], EV_READ);	671	ev_io_set (&sigev, sigpipe [0], EV_READ);
521	ev_io_start (EV_A_ &sigev);	672	ev_io_start (EV_A_ &sigev);
522	ev_unref (EV_A); /* child watcher should not keep loop alive */	673	ev_unref (EV_A); /* child watcher should not keep loop alive */
523	}	674	}
524		675
525	/*****************************************************************************/	676	/*****************************************************************************/
526		677
527	#ifndef WIN32
528
529	static struct ev_child *childs [PID_HASHSIZE];	678	static struct ev_child *childs [PID_HASHSIZE];
		679
		680	#ifndef _WIN32
		681
530	static struct ev_signal childev;	682	static struct ev_signal childev;
531		683
532	#ifndef WCONTINUED	684	#ifndef WCONTINUED
533	# define WCONTINUED 0	685	# define WCONTINUED 0
534	#endif	686	#endif
…		…
542	if (w->pid == pid || !w->pid)	694	if (w->pid == pid || !w->pid)
543	{	695	{
544	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	696	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
545	w->rpid = pid;	697	w->rpid = pid;
546	w->rstatus = status;	698	w->rstatus = status;
547	event (EV_A_ (W)w, EV_CHILD);	699	ev_feed_event (EV_A_ (W)w, EV_CHILD);
548	}	700	}
549	}	701	}
550		702
551	static void	703	static void
552	childcb (EV_P_ struct ev_signal *sw, int revents)	704	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
554	int pid, status;	706	int pid, status;
555		707
556	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	708	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
557	{	709	{
558	/* make sure we are called again until all childs have been reaped */	710	/* make sure we are called again until all childs have been reaped */
559	event (EV_A_ (W)sw, EV_SIGNAL);	711	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
560		712
561	child_reap (EV_A_ sw, pid, pid, status);	713	child_reap (EV_A_ sw, pid, pid, status);
562	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	714	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
563	}	715	}
564	}	716	}
565		717
566	#endif	718	#endif
567		719
568	/*****************************************************************************/	720	/*****************************************************************************/
569		721
		722	#if EV_USE_PORT
		723	# include "ev_port.c"
		724	#endif
570	#if EV_USE_KQUEUE	725	#if EV_USE_KQUEUE
571	# include "ev_kqueue.c"	726	# include "ev_kqueue.c"
572	#endif	727	#endif
573	#if EV_USE_EPOLL	728	#if EV_USE_EPOLL
574	# include "ev_epoll.c"	729	# include "ev_epoll.c"
…		…
594		749
595	/* return true if we are running with elevated privileges and should ignore env variables */	750	/* return true if we are running with elevated privileges and should ignore env variables */
596	static int	751	static int
597	enable_secure (void)	752	enable_secure (void)
598	{	753	{
599	#ifdef WIN32	754	#ifdef _WIN32
600	return 0;	755	return 0;
601	#else	756	#else
602	return getuid () != geteuid ()	757	return getuid () != geteuid ()
603	|| getgid () != getegid ();	758	|| getgid () != getegid ();
604	#endif	759	#endif
605	}	760	}
606		761
607	int	762	unsigned int
608	ev_method (EV_P)	763	ev_method (EV_P)
609	{	764	{
610	return method;	765	return method;
611	}	766	}
612		767
613	static void	768	static void
614	loop_init (EV_P_ int methods)	769	loop_init (EV_P_ unsigned int flags)
615	{	770	{
616	if (!method)	771	if (!method)
617	{	772	{
618	#if EV_USE_MONOTONIC	773	#if EV_USE_MONOTONIC
619	{	774	{
…		…
621	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	776	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
622	have_monotonic = 1;	777	have_monotonic = 1;
623	}	778	}
624	#endif	779	#endif
625		780
626	rt_now = ev_time ();	781	ev_rt_now = ev_time ();
627	mn_now = get_clock ();	782	mn_now = get_clock ();
628	now_floor = mn_now;	783	now_floor = mn_now;
629	rtmn_diff = rt_now - mn_now;	784	rtmn_diff = ev_rt_now - mn_now;
630		785
631	if (methods == EVMETHOD_AUTO)	786	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
632	if (!enable_secure () && getenv ("LIBEV_METHODS"))
633	methods = atoi (getenv ("LIBEV_METHODS"));	787	flags = atoi (getenv ("LIBEV_FLAGS"));
634	else	788
635	methods = EVMETHOD_ANY;	789	if (!(flags & 0x0000ffff))
		790	flags |= 0x0000ffff;
636		791
637	method = 0;	792	method = 0;
638	#if EV_USE_WIN32	793	#if EV_USE_PORT
639	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	794	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
640	#endif	795	#endif
641	#if EV_USE_KQUEUE	796	#if EV_USE_KQUEUE
642	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	797	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
643	#endif	798	#endif
644	#if EV_USE_EPOLL	799	#if EV_USE_EPOLL
645	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	800	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
646	#endif	801	#endif
647	#if EV_USE_POLL	802	#if EV_USE_POLL
648	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	803	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
649	#endif	804	#endif
650	#if EV_USE_SELECT	805	#if EV_USE_SELECT
651	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	806	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
652	#endif	807	#endif
		808
		809	ev_init (&sigev, sigcb);
		810	ev_set_priority (&sigev, EV_MAXPRI);
653	}	811	}
654	}	812	}
655		813
656	void	814	void
657	loop_destroy (EV_P)	815	loop_destroy (EV_P)
658	{	816	{
659	int i;	817	int i;
660		818
661	#if EV_USE_WIN32	819	#if EV_USE_PORT
662	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	820	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
663	#endif	821	#endif
664	#if EV_USE_KQUEUE	822	#if EV_USE_KQUEUE
665	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	823	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
666	#endif	824	#endif
667	#if EV_USE_EPOLL	825	#if EV_USE_EPOLL
…		…
675	#endif	833	#endif
676		834
677	for (i = NUMPRI; i--; )	835	for (i = NUMPRI; i--; )
678	array_free (pending, [i]);	836	array_free (pending, [i]);
679		837
		838	/* have to use the microsoft-never-gets-it-right macro */
680	array_free (fdchange, );	839	array_free (fdchange, EMPTY0);
681	array_free (timer, );	840	array_free (timer, EMPTY0);
		841	#if EV_PERIODICS
682	array_free (periodic, );	842	array_free (periodic, EMPTY0);
		843	#endif
683	array_free (idle, );	844	array_free (idle, EMPTY0);
684	array_free (prepare, );	845	array_free (prepare, EMPTY0);
685	array_free (check, );	846	array_free (check, EMPTY0);
686		847
687	method = 0;	848	method = 0;
688	/*TODO*/
689	}	849	}
690		850
691	void	851	static void
692	loop_fork (EV_P)	852	loop_fork (EV_P)
693	{	853	{
694	/*TODO*/	854	#if EV_USE_PORT
		855	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		856	#endif
		857	#if EV_USE_KQUEUE
		858	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		859	#endif
695	#if EV_USE_EPOLL	860	#if EV_USE_EPOLL
696	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	861	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
697	#endif	862	#endif
698	#if EV_USE_KQUEUE	863
699	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	864	if (ev_is_active (&sigev))
700	#endif	865	{
		866	/* default loop */
		867
		868	ev_ref (EV_A);
		869	ev_io_stop (EV_A_ &sigev);
		870	close (sigpipe [0]);
		871	close (sigpipe [1]);
		872
		873	while (pipe (sigpipe))
		874	syserr ("(libev) error creating pipe");
		875
		876	siginit (EV_A);
		877	}
		878
		879	postfork = 0;
701	}	880	}
702		881
703	#if EV_MULTIPLICITY	882	#if EV_MULTIPLICITY
704	struct ev_loop *	883	struct ev_loop *
705	ev_loop_new (int methods)	884	ev_loop_new (unsigned int flags)
706	{	885	{
707	struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));	886	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
708		887
		888	memset (loop, 0, sizeof (struct ev_loop));
		889
709	loop_init (EV_A_ methods);	890	loop_init (EV_A_ flags);
710		891
711	if (ev_method (EV_A))	892	if (ev_method (EV_A))
712	return loop;	893	return loop;
713		894
714	return 0;	895	return 0;
…		…
716		897
717	void	898	void
718	ev_loop_destroy (EV_P)	899	ev_loop_destroy (EV_P)
719	{	900	{
720	loop_destroy (EV_A);	901	loop_destroy (EV_A);
721	free (loop);	902	ev_free (loop);
722	}	903	}
723		904
724	void	905	void
725	ev_loop_fork (EV_P)	906	ev_loop_fork (EV_P)
726	{	907	{
727	loop_fork (EV_A);	908	postfork = 1;
728	}	909	}
729		910
730	#endif	911	#endif
731		912
732	#if EV_MULTIPLICITY	913	#if EV_MULTIPLICITY
733	struct ev_loop default_loop_struct;
734	static struct ev_loop *default_loop;
735
736	struct ev_loop *	914	struct ev_loop *
		915	ev_default_loop_ (unsigned int flags)
737	#else	916	#else
738	static int default_loop;
739
740	int	917	int
		918	ev_default_loop (unsigned int flags)
741	#endif	919	#endif
742	ev_default_loop (int methods)
743	{	920	{
744	if (sigpipe [0] == sigpipe [1])	921	if (sigpipe [0] == sigpipe [1])
745	if (pipe (sigpipe))	922	if (pipe (sigpipe))
746	return 0;	923	return 0;
747		924
748	if (!default_loop)	925	if (!ev_default_loop_ptr)
749	{	926	{
750	#if EV_MULTIPLICITY	927	#if EV_MULTIPLICITY
751	struct ev_loop *loop = default_loop = &default_loop_struct;	928	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
752	#else	929	#else
753	default_loop = 1;	930	ev_default_loop_ptr = 1;
754	#endif	931	#endif
755		932
756	loop_init (EV_A_ methods);	933	loop_init (EV_A_ flags);
757		934
758	if (ev_method (EV_A))	935	if (ev_method (EV_A))
759	{	936	{
760	ev_watcher_init (&sigev, sigcb);
761	ev_set_priority (&sigev, EV_MAXPRI);
762	siginit (EV_A);	937	siginit (EV_A);
763		938
764	#ifndef WIN32	939	#ifndef _WIN32
765	ev_signal_init (&childev, childcb, SIGCHLD);	940	ev_signal_init (&childev, childcb, SIGCHLD);
766	ev_set_priority (&childev, EV_MAXPRI);	941	ev_set_priority (&childev, EV_MAXPRI);
767	ev_signal_start (EV_A_ &childev);	942	ev_signal_start (EV_A_ &childev);
768	ev_unref (EV_A); /* child watcher should not keep loop alive */	943	ev_unref (EV_A); /* child watcher should not keep loop alive */
769	#endif	944	#endif
770	}	945	}
771	else	946	else
772	default_loop = 0;	947	ev_default_loop_ptr = 0;
773	}	948	}
774		949
775	return default_loop;	950	return ev_default_loop_ptr;
776	}	951	}
777		952
778	void	953	void
779	ev_default_destroy (void)	954	ev_default_destroy (void)
780	{	955	{
781	#if EV_MULTIPLICITY	956	#if EV_MULTIPLICITY
782	struct ev_loop *loop = default_loop;	957	struct ev_loop *loop = ev_default_loop_ptr;
783	#endif	958	#endif
784		959
		960	#ifndef _WIN32
785	ev_ref (EV_A); /* child watcher */	961	ev_ref (EV_A); /* child watcher */
786	ev_signal_stop (EV_A_ &childev);	962	ev_signal_stop (EV_A_ &childev);
		963	#endif
787		964
788	ev_ref (EV_A); /* signal watcher */	965	ev_ref (EV_A); /* signal watcher */
789	ev_io_stop (EV_A_ &sigev);	966	ev_io_stop (EV_A_ &sigev);
790		967
791	close (sigpipe [0]); sigpipe [0] = 0;	968	close (sigpipe [0]); sigpipe [0] = 0;
…		…
796		973
797	void	974	void
798	ev_default_fork (void)	975	ev_default_fork (void)
799	{	976	{
800	#if EV_MULTIPLICITY	977	#if EV_MULTIPLICITY
801	struct ev_loop *loop = default_loop;	978	struct ev_loop *loop = ev_default_loop_ptr;
802	#endif	979	#endif
803		980
804	loop_fork (EV_A);	981	if (method)
805		982	postfork = 1;
806	ev_io_stop (EV_A_ &sigev);
807	close (sigpipe [0]);
808	close (sigpipe [1]);
809	pipe (sigpipe);
810
811	ev_ref (EV_A); /* signal watcher */
812	siginit (EV_A);
813	}	983	}
814		984
815	/*****************************************************************************/	985	/*****************************************************************************/
816		986
817	static void	987	static int
		988	any_pending (EV_P)
		989	{
		990	int pri;
		991
		992	for (pri = NUMPRI; pri--; )
		993	if (pendingcnt [pri])
		994	return 1;
		995
		996	return 0;
		997	}
		998
		999	inline void
818	call_pending (EV_P)	1000	call_pending (EV_P)
819	{	1001	{
820	int pri;	1002	int pri;
821		1003
822	for (pri = NUMPRI; pri--; )	1004	for (pri = NUMPRI; pri--; )
823	while (pendingcnt [pri])	1005	while (pendingcnt [pri])
824	{	1006	{
825	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1007	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
826		1008
827	if (p->w)	1009	if (expect_true (p->w))
828	{	1010	{
829	p->w->pending = 0;	1011	p->w->pending = 0;
830	p->w->cb (EV_A_ p->w, p->events);	1012	EV_CB_INVOKE (p->w, p->events);
831	}	1013	}
832	}	1014	}
833	}	1015	}
834		1016
835	static void	1017	inline void
836	timers_reify (EV_P)	1018	timers_reify (EV_P)
837	{	1019	{
838	while (timercnt && ((WT)timers [0])->at <= mn_now)	1020	while (timercnt && ((WT)timers [0])->at <= mn_now)
839	{	1021	{
840	struct ev_timer *w = timers [0];	1022	struct ev_timer *w = timers [0];
…		…
843		1025
844	/* first reschedule or stop timer */	1026	/* first reschedule or stop timer */
845	if (w->repeat)	1027	if (w->repeat)
846	{	1028	{
847	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1029	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1030
848	((WT)w)->at = mn_now + w->repeat;	1031	((WT)w)->at += w->repeat;
		1032	if (((WT)w)->at < mn_now)
		1033	((WT)w)->at = mn_now;
		1034
849	downheap ((WT *)timers, timercnt, 0);	1035	downheap ((WT *)timers, timercnt, 0);
850	}	1036	}
851	else	1037	else
852	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1038	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
853		1039
854	event (EV_A_ (W)w, EV_TIMEOUT);	1040	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
855	}	1041	}
856	}	1042	}
857		1043
858	static void	1044	#if EV_PERIODICS
		1045	inline void
859	periodics_reify (EV_P)	1046	periodics_reify (EV_P)
860	{	1047	{
861	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1048	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
862	{	1049	{
863	struct ev_periodic *w = periodics [0];	1050	struct ev_periodic *w = periodics [0];
864		1051
865	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1052	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
866		1053
867	/* first reschedule or stop timer */	1054	/* first reschedule or stop timer */
868	if (w->interval)	1055	if (w->reschedule_cb)
869	{	1056	{
		1057	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1058	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1059	downheap ((WT *)periodics, periodiccnt, 0);
		1060	}
		1061	else if (w->interval)
		1062	{
870	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1063	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
871	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now));	1064	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
872	downheap ((WT *)periodics, periodiccnt, 0);	1065	downheap ((WT *)periodics, periodiccnt, 0);
873	}	1066	}
874	else	1067	else
875	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1068	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
876		1069
877	event (EV_A_ (W)w, EV_PERIODIC);	1070	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
878	}	1071	}
879	}	1072	}
880		1073
881	static void	1074	static void
882	periodics_reschedule (EV_P)	1075	periodics_reschedule (EV_P)
…		…
886	/* adjust periodics after time jump */	1079	/* adjust periodics after time jump */
887	for (i = 0; i < periodiccnt; ++i)	1080	for (i = 0; i < periodiccnt; ++i)
888	{	1081	{
889	struct ev_periodic *w = periodics [i];	1082	struct ev_periodic *w = periodics [i];
890		1083
		1084	if (w->reschedule_cb)
		1085	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
891	if (w->interval)	1086	else if (w->interval)
892	{
893	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1087	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
894
895	if (fabs (diff) >= 1e-4)
896	{
897	ev_periodic_stop (EV_A_ w);
898	ev_periodic_start (EV_A_ w);
899
900	i = 0; /* restart loop, inefficient, but time jumps should be rare */
901	}
902	}
903	}	1088	}
		1089
		1090	/* now rebuild the heap */
		1091	for (i = periodiccnt >> 1; i--; )
		1092	downheap ((WT *)periodics, periodiccnt, i);
904	}	1093	}
		1094	#endif
905		1095
906	inline int	1096	inline int
907	time_update_monotonic (EV_P)	1097	time_update_monotonic (EV_P)
908	{	1098	{
909	mn_now = get_clock ();	1099	mn_now = get_clock ();
910		1100
911	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1101	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
912	{	1102	{
913	rt_now = rtmn_diff + mn_now;	1103	ev_rt_now = rtmn_diff + mn_now;
914	return 0;	1104	return 0;
915	}	1105	}
916	else	1106	else
917	{	1107	{
918	now_floor = mn_now;	1108	now_floor = mn_now;
919	rt_now = ev_time ();	1109	ev_rt_now = ev_time ();
920	return 1;	1110	return 1;
921	}	1111	}
922	}	1112	}
923		1113
924	static void	1114	inline void
925	time_update (EV_P)	1115	time_update (EV_P)
926	{	1116	{
927	int i;	1117	int i;
928		1118
929	#if EV_USE_MONOTONIC	1119	#if EV_USE_MONOTONIC
…		…
933	{	1123	{
934	ev_tstamp odiff = rtmn_diff;	1124	ev_tstamp odiff = rtmn_diff;
935		1125
936	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1126	for (i = 4; --i; ) /* loop a few times, before making important decisions */
937	{	1127	{
938	rtmn_diff = rt_now - mn_now;	1128	rtmn_diff = ev_rt_now - mn_now;
939		1129
940	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1130	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
941	return; /* all is well */	1131	return; /* all is well */
942		1132
943	rt_now = ev_time ();	1133	ev_rt_now = ev_time ();
944	mn_now = get_clock ();	1134	mn_now = get_clock ();
945	now_floor = mn_now;	1135	now_floor = mn_now;
946	}	1136	}
947		1137
		1138	# if EV_PERIODICS
948	periodics_reschedule (EV_A);	1139	periodics_reschedule (EV_A);
		1140	# endif
949	/* no timer adjustment, as the monotonic clock doesn't jump */	1141	/* no timer adjustment, as the monotonic clock doesn't jump */
950	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1142	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
951	}	1143	}
952	}	1144	}
953	else	1145	else
954	#endif	1146	#endif
955	{	1147	{
956	rt_now = ev_time ();	1148	ev_rt_now = ev_time ();
957		1149
958	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1150	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
959	{	1151	{
		1152	#if EV_PERIODICS
960	periodics_reschedule (EV_A);	1153	periodics_reschedule (EV_A);
		1154	#endif
961		1155
962	/* adjust timers. this is easy, as the offset is the same for all */	1156	/* adjust timers. this is easy, as the offset is the same for all */
963	for (i = 0; i < timercnt; ++i)	1157	for (i = 0; i < timercnt; ++i)
964	((WT)timers [i])->at += rt_now - mn_now;	1158	((WT)timers [i])->at += ev_rt_now - mn_now;
965	}	1159	}
966		1160
967	mn_now = rt_now;	1161	mn_now = ev_rt_now;
968	}	1162	}
969	}	1163	}
970		1164
971	void	1165	void
972	ev_ref (EV_P)	1166	ev_ref (EV_P)
…		…
986	ev_loop (EV_P_ int flags)	1180	ev_loop (EV_P_ int flags)
987	{	1181	{
988	double block;	1182	double block;
989	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1183	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
990		1184
991	do	1185	while (activecnt)
992	{	1186	{
993	/* queue check watchers (and execute them) */	1187	/* queue check watchers (and execute them) */
994	if (expect_false (preparecnt))	1188	if (expect_false (preparecnt))
995	{	1189	{
996	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1190	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
997	call_pending (EV_A);	1191	call_pending (EV_A);
998	}	1192	}
999		1193
		1194	/* we might have forked, so reify kernel state if necessary */
		1195	if (expect_false (postfork))
		1196	loop_fork (EV_A);
		1197
1000	/* update fd-related kernel structures */	1198	/* update fd-related kernel structures */
1001	fd_reify (EV_A);	1199	fd_reify (EV_A);
1002		1200
1003	/* calculate blocking time */	1201	/* calculate blocking time */
1004		1202
1005	/* we only need this for !monotonic clockor timers, but as we basically	1203	/* we only need this for !monotonic clock or timers, but as we basically
1006	always have timers, we just calculate it always */	1204	always have timers, we just calculate it always */
1007	#if EV_USE_MONOTONIC	1205	#if EV_USE_MONOTONIC
1008	if (expect_true (have_monotonic))	1206	if (expect_true (have_monotonic))
1009	time_update_monotonic (EV_A);	1207	time_update_monotonic (EV_A);
1010	else	1208	else
1011	#endif	1209	#endif
1012	{	1210	{
1013	rt_now = ev_time ();	1211	ev_rt_now = ev_time ();
1014	mn_now = rt_now;	1212	mn_now = ev_rt_now;
1015	}	1213	}
1016		1214
1017	if (flags & EVLOOP_NONBLOCK || idlecnt)	1215	if (flags & EVLOOP_NONBLOCK || idlecnt)
1018	block = 0.;	1216	block = 0.;
1019	else	1217	else
…		…
1024	{	1222	{
1025	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1223	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1026	if (block > to) block = to;	1224	if (block > to) block = to;
1027	}	1225	}
1028		1226
		1227	#if EV_PERIODICS
1029	if (periodiccnt)	1228	if (periodiccnt)
1030	{	1229	{
1031	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1230	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1032	if (block > to) block = to;	1231	if (block > to) block = to;
1033	}	1232	}
		1233	#endif
1034		1234
1035	if (block < 0.) block = 0.;	1235	if (expect_false (block < 0.)) block = 0.;
1036	}	1236	}
1037		1237
1038	method_poll (EV_A_ block);	1238	method_poll (EV_A_ block);
1039		1239
1040	/* update rt_now, do magic */	1240	/* update ev_rt_now, do magic */
1041	time_update (EV_A);	1241	time_update (EV_A);
1042		1242
1043	/* queue pending timers and reschedule them */	1243	/* queue pending timers and reschedule them */
1044	timers_reify (EV_A); /* relative timers called last */	1244	timers_reify (EV_A); /* relative timers called last */
		1245	#if EV_PERIODICS
1045	periodics_reify (EV_A); /* absolute timers called first */	1246	periodics_reify (EV_A); /* absolute timers called first */
		1247	#endif
1046		1248
1047	/* queue idle watchers unless io or timers are pending */	1249	/* queue idle watchers unless io or timers are pending */
1048	if (!pendingcnt)	1250	if (idlecnt && !any_pending (EV_A))
1049	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1251	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1050		1252
1051	/* queue check watchers, to be executed first */	1253	/* queue check watchers, to be executed first */
1052	if (checkcnt)	1254	if (expect_false (checkcnt))
1053	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1255	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1054		1256
1055	call_pending (EV_A);	1257	call_pending (EV_A);
		1258
		1259	if (expect_false (loop_done))
		1260	break;
1056	}	1261	}
1057	while (activecnt && !loop_done);
1058		1262
1059	if (loop_done != 2)	1263	if (loop_done != 2)
1060	loop_done = 0;	1264	loop_done = 0;
1061	}	1265	}
1062		1266
…		…
1122	void	1326	void
1123	ev_io_start (EV_P_ struct ev_io *w)	1327	ev_io_start (EV_P_ struct ev_io *w)
1124	{	1328	{
1125	int fd = w->fd;	1329	int fd = w->fd;
1126		1330
1127	if (ev_is_active (w))	1331	if (expect_false (ev_is_active (w)))
1128	return;	1332	return;
1129		1333
1130	assert (("ev_io_start called with negative fd", fd >= 0));	1334	assert (("ev_io_start called with negative fd", fd >= 0));
1131		1335
1132	ev_start (EV_A_ (W)w, 1);	1336	ev_start (EV_A_ (W)w, 1);
1133	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1337	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1134	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1338	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1135		1339
1136	fd_change (EV_A_ fd);	1340	fd_change (EV_A_ fd);
1137	}	1341	}
1138		1342
1139	void	1343	void
1140	ev_io_stop (EV_P_ struct ev_io *w)	1344	ev_io_stop (EV_P_ struct ev_io *w)
1141	{	1345	{
1142	ev_clear_pending (EV_A_ (W)w);	1346	ev_clear_pending (EV_A_ (W)w);
1143	if (!ev_is_active (w))	1347	if (expect_false (!ev_is_active (w)))
1144	return;	1348	return;
		1349
		1350	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1145		1351
1146	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1352	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1147	ev_stop (EV_A_ (W)w);	1353	ev_stop (EV_A_ (W)w);
1148		1354
1149	fd_change (EV_A_ w->fd);	1355	fd_change (EV_A_ w->fd);
1150	}	1356	}
1151		1357
1152	void	1358	void
1153	ev_timer_start (EV_P_ struct ev_timer *w)	1359	ev_timer_start (EV_P_ struct ev_timer *w)
1154	{	1360	{
1155	if (ev_is_active (w))	1361	if (expect_false (ev_is_active (w)))
1156	return;	1362	return;
1157		1363
1158	((WT)w)->at += mn_now;	1364	((WT)w)->at += mn_now;
1159		1365
1160	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1366	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1161		1367
1162	ev_start (EV_A_ (W)w, ++timercnt);	1368	ev_start (EV_A_ (W)w, ++timercnt);
1163	array_needsize (timers, timermax, timercnt, );	1369	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1164	timers [timercnt - 1] = w;	1370	timers [timercnt - 1] = w;
1165	upheap ((WT *)timers, timercnt - 1);	1371	upheap ((WT *)timers, timercnt - 1);
1166		1372
1167	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1373	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1168	}	1374	}
1169		1375
1170	void	1376	void
1171	ev_timer_stop (EV_P_ struct ev_timer *w)	1377	ev_timer_stop (EV_P_ struct ev_timer *w)
1172	{	1378	{
1173	ev_clear_pending (EV_A_ (W)w);	1379	ev_clear_pending (EV_A_ (W)w);
1174	if (!ev_is_active (w))	1380	if (expect_false (!ev_is_active (w)))
1175	return;	1381	return;
1176		1382
1177	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1383	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1178		1384
1179	if (((W)w)->active < timercnt--)	1385	if (expect_true (((W)w)->active < timercnt--))
1180	{	1386	{
1181	timers [((W)w)->active - 1] = timers [timercnt];	1387	timers [((W)w)->active - 1] = timers [timercnt];
1182	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1388	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1183	}	1389	}
1184		1390
1185	((WT)w)->at = w->repeat;	1391	((WT)w)->at -= mn_now;
1186		1392
1187	ev_stop (EV_A_ (W)w);	1393	ev_stop (EV_A_ (W)w);
1188	}	1394	}
1189		1395
1190	void	1396	void
…		…
1193	if (ev_is_active (w))	1399	if (ev_is_active (w))
1194	{	1400	{
1195	if (w->repeat)	1401	if (w->repeat)
1196	{	1402	{
1197	((WT)w)->at = mn_now + w->repeat;	1403	((WT)w)->at = mn_now + w->repeat;
1198	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1404	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1199	}	1405	}
1200	else	1406	else
1201	ev_timer_stop (EV_A_ w);	1407	ev_timer_stop (EV_A_ w);
1202	}	1408	}
1203	else if (w->repeat)	1409	else if (w->repeat)
		1410	{
		1411	w->at = w->repeat;
1204	ev_timer_start (EV_A_ w);	1412	ev_timer_start (EV_A_ w);
		1413	}
1205	}	1414	}
1206		1415
		1416	#if EV_PERIODICS
1207	void	1417	void
1208	ev_periodic_start (EV_P_ struct ev_periodic *w)	1418	ev_periodic_start (EV_P_ struct ev_periodic *w)
1209	{	1419	{
1210	if (ev_is_active (w))	1420	if (expect_false (ev_is_active (w)))
1211	return;	1421	return;
1212		1422
		1423	if (w->reschedule_cb)
		1424	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1425	else if (w->interval)
		1426	{
1213	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1427	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1214
1215	/* this formula differs from the one in periodic_reify because we do not always round up */	1428	/* this formula differs from the one in periodic_reify because we do not always round up */
1216	if (w->interval)
1217	((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1429	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1430	}
1218		1431
1219	ev_start (EV_A_ (W)w, ++periodiccnt);	1432	ev_start (EV_A_ (W)w, ++periodiccnt);
1220	array_needsize (periodics, periodicmax, periodiccnt, );	1433	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1221	periodics [periodiccnt - 1] = w;	1434	periodics [periodiccnt - 1] = w;
1222	upheap ((WT *)periodics, periodiccnt - 1);	1435	upheap ((WT *)periodics, periodiccnt - 1);
1223		1436
1224	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1437	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1225	}	1438	}
1226		1439
1227	void	1440	void
1228	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1441	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1229	{	1442	{
1230	ev_clear_pending (EV_A_ (W)w);	1443	ev_clear_pending (EV_A_ (W)w);
1231	if (!ev_is_active (w))	1444	if (expect_false (!ev_is_active (w)))
1232	return;	1445	return;
1233		1446
1234	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1447	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1235		1448
1236	if (((W)w)->active < periodiccnt--)	1449	if (expect_true (((W)w)->active < periodiccnt--))
1237	{	1450	{
1238	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1451	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1239	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1452	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1240	}	1453	}
1241		1454
1242	ev_stop (EV_A_ (W)w);	1455	ev_stop (EV_A_ (W)w);
1243	}	1456	}
1244		1457
1245	void	1458	void
		1459	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1460	{
		1461	/* TODO: use adjustheap and recalculation */
		1462	ev_periodic_stop (EV_A_ w);
		1463	ev_periodic_start (EV_A_ w);
		1464	}
		1465	#endif
		1466
		1467	void
1246	ev_idle_start (EV_P_ struct ev_idle *w)	1468	ev_idle_start (EV_P_ struct ev_idle *w)
1247	{	1469	{
1248	if (ev_is_active (w))	1470	if (expect_false (ev_is_active (w)))
1249	return;	1471	return;
1250		1472
1251	ev_start (EV_A_ (W)w, ++idlecnt);	1473	ev_start (EV_A_ (W)w, ++idlecnt);
1252	array_needsize (idles, idlemax, idlecnt, );	1474	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1253	idles [idlecnt - 1] = w;	1475	idles [idlecnt - 1] = w;
1254	}	1476	}
1255		1477
1256	void	1478	void
1257	ev_idle_stop (EV_P_ struct ev_idle *w)	1479	ev_idle_stop (EV_P_ struct ev_idle *w)
1258	{	1480	{
1259	ev_clear_pending (EV_A_ (W)w);	1481	ev_clear_pending (EV_A_ (W)w);
1260	if (ev_is_active (w))	1482	if (expect_false (!ev_is_active (w)))
1261	return;	1483	return;
1262		1484
1263	idles [((W)w)->active - 1] = idles [--idlecnt];	1485	idles [((W)w)->active - 1] = idles [--idlecnt];
1264	ev_stop (EV_A_ (W)w);	1486	ev_stop (EV_A_ (W)w);
1265	}	1487	}
1266		1488
1267	void	1489	void
1268	ev_prepare_start (EV_P_ struct ev_prepare *w)	1490	ev_prepare_start (EV_P_ struct ev_prepare *w)
1269	{	1491	{
1270	if (ev_is_active (w))	1492	if (expect_false (ev_is_active (w)))
1271	return;	1493	return;
1272		1494
1273	ev_start (EV_A_ (W)w, ++preparecnt);	1495	ev_start (EV_A_ (W)w, ++preparecnt);
1274	array_needsize (prepares, preparemax, preparecnt, );	1496	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1275	prepares [preparecnt - 1] = w;	1497	prepares [preparecnt - 1] = w;
1276	}	1498	}
1277		1499
1278	void	1500	void
1279	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1501	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1280	{	1502	{
1281	ev_clear_pending (EV_A_ (W)w);	1503	ev_clear_pending (EV_A_ (W)w);
1282	if (ev_is_active (w))	1504	if (expect_false (!ev_is_active (w)))
1283	return;	1505	return;
1284		1506
1285	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1507	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1286	ev_stop (EV_A_ (W)w);	1508	ev_stop (EV_A_ (W)w);
1287	}	1509	}
1288		1510
1289	void	1511	void
1290	ev_check_start (EV_P_ struct ev_check *w)	1512	ev_check_start (EV_P_ struct ev_check *w)
1291	{	1513	{
1292	if (ev_is_active (w))	1514	if (expect_false (ev_is_active (w)))
1293	return;	1515	return;
1294		1516
1295	ev_start (EV_A_ (W)w, ++checkcnt);	1517	ev_start (EV_A_ (W)w, ++checkcnt);
1296	array_needsize (checks, checkmax, checkcnt, );	1518	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1297	checks [checkcnt - 1] = w;	1519	checks [checkcnt - 1] = w;
1298	}	1520	}
1299		1521
1300	void	1522	void
1301	ev_check_stop (EV_P_ struct ev_check *w)	1523	ev_check_stop (EV_P_ struct ev_check *w)
1302	{	1524	{
1303	ev_clear_pending (EV_A_ (W)w);	1525	ev_clear_pending (EV_A_ (W)w);
1304	if (ev_is_active (w))	1526	if (expect_false (!ev_is_active (w)))
1305	return;	1527	return;
1306		1528
1307	checks [((W)w)->active - 1] = checks [--checkcnt];	1529	checks [((W)w)->active - 1] = checks [--checkcnt];
1308	ev_stop (EV_A_ (W)w);	1530	ev_stop (EV_A_ (W)w);
1309	}	1531	}
…		…
1314		1536
1315	void	1537	void
1316	ev_signal_start (EV_P_ struct ev_signal *w)	1538	ev_signal_start (EV_P_ struct ev_signal *w)
1317	{	1539	{
1318	#if EV_MULTIPLICITY	1540	#if EV_MULTIPLICITY
1319	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1541	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1320	#endif	1542	#endif
1321	if (ev_is_active (w))	1543	if (expect_false (ev_is_active (w)))
1322	return;	1544	return;
1323		1545
1324	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1546	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1325		1547
1326	ev_start (EV_A_ (W)w, 1);	1548	ev_start (EV_A_ (W)w, 1);
1327	array_needsize (signals, signalmax, w->signum, signals_init);	1549	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1328	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1550	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1329		1551
1330	if (!((WL)w)->next)	1552	if (!((WL)w)->next)
1331	{	1553	{
1332	#if WIN32	1554	#if _WIN32
1333	signal (w->signum, sighandler);	1555	signal (w->signum, sighandler);
1334	#else	1556	#else
1335	struct sigaction sa;	1557	struct sigaction sa;
1336	sa.sa_handler = sighandler;	1558	sa.sa_handler = sighandler;
1337	sigfillset (&sa.sa_mask);	1559	sigfillset (&sa.sa_mask);
…		…
1343		1565
1344	void	1566	void
1345	ev_signal_stop (EV_P_ struct ev_signal *w)	1567	ev_signal_stop (EV_P_ struct ev_signal *w)
1346	{	1568	{
1347	ev_clear_pending (EV_A_ (W)w);	1569	ev_clear_pending (EV_A_ (W)w);
1348	if (!ev_is_active (w))	1570	if (expect_false (!ev_is_active (w)))
1349	return;	1571	return;
1350		1572
1351	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1573	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1352	ev_stop (EV_A_ (W)w);	1574	ev_stop (EV_A_ (W)w);
1353		1575
…		…
1357		1579
1358	void	1580	void
1359	ev_child_start (EV_P_ struct ev_child *w)	1581	ev_child_start (EV_P_ struct ev_child *w)
1360	{	1582	{
1361	#if EV_MULTIPLICITY	1583	#if EV_MULTIPLICITY
1362	assert (("child watchers are only supported in the default loop", loop == default_loop));	1584	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1363	#endif	1585	#endif
1364	if (ev_is_active (w))	1586	if (expect_false (ev_is_active (w)))
1365	return;	1587	return;
1366		1588
1367	ev_start (EV_A_ (W)w, 1);	1589	ev_start (EV_A_ (W)w, 1);
1368	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1590	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1369	}	1591	}
1370		1592
1371	void	1593	void
1372	ev_child_stop (EV_P_ struct ev_child *w)	1594	ev_child_stop (EV_P_ struct ev_child *w)
1373	{	1595	{
1374	ev_clear_pending (EV_A_ (W)w);	1596	ev_clear_pending (EV_A_ (W)w);
1375	if (ev_is_active (w))	1597	if (expect_false (!ev_is_active (w)))
1376	return;	1598	return;
1377		1599
1378	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1600	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1379	ev_stop (EV_A_ (W)w);	1601	ev_stop (EV_A_ (W)w);
1380	}	1602	}
…		…
1395	void (*cb)(int revents, void *arg) = once->cb;	1617	void (*cb)(int revents, void *arg) = once->cb;
1396	void *arg = once->arg;	1618	void *arg = once->arg;
1397		1619
1398	ev_io_stop (EV_A_ &once->io);	1620	ev_io_stop (EV_A_ &once->io);
1399	ev_timer_stop (EV_A_ &once->to);	1621	ev_timer_stop (EV_A_ &once->to);
1400	free (once);	1622	ev_free (once);
1401		1623
1402	cb (revents, arg);	1624	cb (revents, arg);
1403	}	1625	}
1404		1626
1405	static void	1627	static void
…		…
1415	}	1637	}
1416		1638
1417	void	1639	void
1418	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1640	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1419	{	1641	{
1420	struct ev_once *once = malloc (sizeof (struct ev_once));	1642	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1421		1643
1422	if (!once)	1644	if (expect_false (!once))
		1645	{
1423	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1646	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1424	else	1647	return;
1425	{	1648	}
		1649
1426	once->cb = cb;	1650	once->cb = cb;
1427	once->arg = arg;	1651	once->arg = arg;
1428		1652
1429	ev_watcher_init (&once->io, once_cb_io);	1653	ev_init (&once->io, once_cb_io);
1430	if (fd >= 0)	1654	if (fd >= 0)
1431	{	1655	{
1432	ev_io_set (&once->io, fd, events);	1656	ev_io_set (&once->io, fd, events);
1433	ev_io_start (EV_A_ &once->io);	1657	ev_io_start (EV_A_ &once->io);
1434	}	1658	}
1435		1659
1436	ev_watcher_init (&once->to, once_cb_to);	1660	ev_init (&once->to, once_cb_to);
1437	if (timeout >= 0.)	1661	if (timeout >= 0.)
1438	{	1662	{
1439	ev_timer_set (&once->to, timeout, 0.);	1663	ev_timer_set (&once->to, timeout, 0.);
1440	ev_timer_start (EV_A_ &once->to);	1664	ev_timer_start (EV_A_ &once->to);
1441	}
1442	}	1665	}
1443	}	1666	}
1444		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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