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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 1.126 by root, Sun Nov 18 01:25:23 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
39	# if HAVE_SELECT && HAVE_SYS_SELECT_H	55	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
40	# define EV_USE_SELECT 1	56	# define EV_USE_SELECT 1
		57	# else
		58	# define EV_USE_SELECT 0
41	# endif	59	# endif
42		60
43	# if HAVE_POLL && HAVE_POLL_H	61	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
44	# define EV_USE_POLL 1	62	# define EV_USE_POLL 1
		63	# else
		64	# define EV_USE_POLL 0
45	# endif	65	# endif
46		66
47	# if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H	67	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
48	# define EV_USE_EPOLL 1	68	# define EV_USE_EPOLL 1
		69	# else
		70	# define EV_USE_EPOLL 0
49	# endif	71	# endif
50		72
51	# if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H	73	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
52	# define EV_USE_KQUEUE 1	74	# define EV_USE_KQUEUE 1
		75	# else
		76	# define EV_USE_KQUEUE 0
		77	# endif
		78
		79	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		80	# define EV_USE_PORT 1
		81	# else
		82	# define EV_USE_PORT 0
53	# endif	83	# endif
54		84
55	#endif	85	#endif
56		86
57	#include <math.h>	87	#include <math.h>
58	#include <stdlib.h>	88	#include <stdlib.h>
59	#include <unistd.h>
60	#include <fcntl.h>	89	#include <fcntl.h>
61	#include <signal.h>
62	#include <stddef.h>	90	#include <stddef.h>
63		91
64	#include <stdio.h>	92	#include <stdio.h>
65		93
66	#include <assert.h>	94	#include <assert.h>
67	#include <errno.h>	95	#include <errno.h>
68	#include <sys/types.h>	96	#include <sys/types.h>
		97	#include <time.h>
		98
		99	#include <signal.h>
		100
69	#ifndef WIN32	101	#ifndef _WIN32
		102	# include <unistd.h>
		103	# include <sys/time.h>
70	# include <sys/wait.h>	104	# include <sys/wait.h>
		105	#else
		106	# define WIN32_LEAN_AND_MEAN
		107	# include <windows.h>
		108	# ifndef EV_SELECT_IS_WINSOCKET
		109	# define EV_SELECT_IS_WINSOCKET 1
71	#endif	110	# endif
72	#include <sys/time.h>	111	#endif
73	#include <time.h>
74		112
75	/**/	113	/**/
76		114
77	#ifndef EV_USE_MONOTONIC	115	#ifndef EV_USE_MONOTONIC
78	# define EV_USE_MONOTONIC 1	116	# define EV_USE_MONOTONIC 0
		117	#endif
		118
		119	#ifndef EV_USE_REALTIME
		120	# define EV_USE_REALTIME 0
79	#endif	121	#endif
80		122
81	#ifndef EV_USE_SELECT	123	#ifndef EV_USE_SELECT
82	# define EV_USE_SELECT 1	124	# define EV_USE_SELECT 1
83	#endif	125	#endif
84		126
85	#ifndef EV_USE_POLL	127	#ifndef EV_USE_POLL
86	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	128	# ifdef _WIN32
		129	# define EV_USE_POLL 0
		130	# else
		131	# define EV_USE_POLL 1
		132	# endif
87	#endif	133	#endif
88		134
89	#ifndef EV_USE_EPOLL	135	#ifndef EV_USE_EPOLL
90	# define EV_USE_EPOLL 0	136	# define EV_USE_EPOLL 0
91	#endif	137	#endif
92		138
93	#ifndef EV_USE_KQUEUE	139	#ifndef EV_USE_KQUEUE
94	# define EV_USE_KQUEUE 0	140	# define EV_USE_KQUEUE 0
95	#endif	141	#endif
96		142
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	143	#ifndef EV_USE_PORT
106	# define EV_USE_REALTIME 1	144	# define EV_USE_PORT 0
107	#endif	145	#endif
108		146
109	/**/	147	/**/
		148
		149	/* darwin simply cannot be helped */
		150	#ifdef __APPLE__
		151	# undef EV_USE_POLL
		152	# undef EV_USE_KQUEUE
		153	#endif
110		154
111	#ifndef CLOCK_MONOTONIC	155	#ifndef CLOCK_MONOTONIC
112	# undef EV_USE_MONOTONIC	156	# undef EV_USE_MONOTONIC
113	# define EV_USE_MONOTONIC 0	157	# define EV_USE_MONOTONIC 0
114	#endif	158	#endif
…		…
116	#ifndef CLOCK_REALTIME	160	#ifndef CLOCK_REALTIME
117	# undef EV_USE_REALTIME	161	# undef EV_USE_REALTIME
118	# define EV_USE_REALTIME 0	162	# define EV_USE_REALTIME 0
119	#endif	163	#endif
120		164
		165	#if EV_SELECT_IS_WINSOCKET
		166	# include <winsock.h>
		167	#endif
		168
121	/**/	169	/**/
122		170
123	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	171	#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) */	172	#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 */	173	#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 */	174	/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
127		175
		176	#ifdef EV_H
		177	# include EV_H
		178	#else
128	#include "ev.h"	179	# include "ev.h"
		180	#endif
129		181
130	#if __GNUC__ >= 3	182	#if __GNUC__ >= 3
131	# define expect(expr,value) __builtin_expect ((expr),(value))	183	# define expect(expr,value) __builtin_expect ((expr),(value))
132	# define inline inline	184	# define inline static inline
133	#else	185	#else
134	# define expect(expr,value) (expr)	186	# define expect(expr,value) (expr)
135	# define inline static	187	# define inline static
136	#endif	188	#endif
137		189
…		…
139	#define expect_true(expr) expect ((expr) != 0, 1)	191	#define expect_true(expr) expect ((expr) != 0, 1)
140		192
141	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	193	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
142	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	194	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
143		195
		196	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		197	#define EMPTY2(a,b) /* used to suppress some warnings */
		198
144	typedef struct ev_watcher *W;	199	typedef struct ev_watcher *W;
145	typedef struct ev_watcher_list *WL;	200	typedef struct ev_watcher_list *WL;
146	typedef struct ev_watcher_time *WT;	201	typedef struct ev_watcher_time *WT;
147		202
148	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	203	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
149		204
150	#if WIN32	205	#ifdef _WIN32
151	/* note: the comment below could not be substantiated, but what would I care */	206	# include "ev_win32.c"
152	/* MSDN says this is required to handle SIGFPE */
153	volatile double SIGFPE_REQ = 0.0f;
154	#endif	207	#endif
		208
		209	/*****************************************************************************/
		210
		211	static void (*syserr_cb)(const char *msg);
		212
		213	void ev_set_syserr_cb (void (*cb)(const char *msg))
		214	{
		215	syserr_cb = cb;
		216	}
		217
		218	static void
		219	syserr (const char *msg)
		220	{
		221	if (!msg)
		222	msg = "(libev) system error";
		223
		224	if (syserr_cb)
		225	syserr_cb (msg);
		226	else
		227	{
		228	perror (msg);
		229	abort ();
		230	}
		231	}
		232
		233	static void *(*alloc)(void *ptr, long size);
		234
		235	void ev_set_allocator (void *(*cb)(void *ptr, long size))
		236	{
		237	alloc = cb;
		238	}
		239
		240	static void *
		241	ev_realloc (void *ptr, long size)
		242	{
		243	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		244
		245	if (!ptr && size)
		246	{
		247	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		248	abort ();
		249	}
		250
		251	return ptr;
		252	}
		253
		254	#define ev_malloc(size) ev_realloc (0, (size))
		255	#define ev_free(ptr) ev_realloc ((ptr), 0)
155		256
156	/*****************************************************************************/	257	/*****************************************************************************/
157		258
158	typedef struct	259	typedef struct
159	{	260	{
160	WL head;	261	WL head;
161	unsigned char events;	262	unsigned char events;
162	unsigned char reify;	263	unsigned char reify;
		264	#if EV_SELECT_IS_WINSOCKET
		265	SOCKET handle;
		266	#endif
163	} ANFD;	267	} ANFD;
164		268
165	typedef struct	269	typedef struct
166	{	270	{
167	W w;	271	W w;
168	int events;	272	int events;
169	} ANPENDING;	273	} ANPENDING;
170		274
171	#if EV_MULTIPLICITY	275	#if EV_MULTIPLICITY
172		276
173	struct ev_loop	277	struct ev_loop
174	{	278	{
		279	ev_tstamp ev_rt_now;
		280	#define ev_rt_now ((loop)->ev_rt_now)
175	# define VAR(name,decl) decl;	281	#define VAR(name,decl) decl;
176	# include "ev_vars.h"	282	#include "ev_vars.h"
177	};
178	# undef VAR	283	#undef VAR
		284	};
179	# include "ev_wrap.h"	285	#include "ev_wrap.h"
		286
		287	static struct ev_loop default_loop_struct;
		288	struct ev_loop *ev_default_loop_ptr;
180		289
181	#else	290	#else
182		291
		292	ev_tstamp ev_rt_now;
183	# define VAR(name,decl) static decl;	293	#define VAR(name,decl) static decl;
184	# include "ev_vars.h"	294	#include "ev_vars.h"
185	# undef VAR	295	#undef VAR
		296
		297	static int ev_default_loop_ptr;
186		298
187	#endif	299	#endif
188		300
189	/*****************************************************************************/	301	/*****************************************************************************/
190		302
191	inline ev_tstamp	303	ev_tstamp
192	ev_time (void)	304	ev_time (void)
193	{	305	{
194	#if EV_USE_REALTIME	306	#if EV_USE_REALTIME
195	struct timespec ts;	307	struct timespec ts;
196	clock_gettime (CLOCK_REALTIME, &ts);	308	clock_gettime (CLOCK_REALTIME, &ts);
…		…
215	#endif	327	#endif
216		328
217	return ev_time ();	329	return ev_time ();
218	}	330	}
219		331
		332	#if EV_MULTIPLICITY
220	ev_tstamp	333	ev_tstamp
221	ev_now (EV_P)	334	ev_now (EV_P)
222	{	335	{
223	return rt_now;	336	return ev_rt_now;
224	}	337	}
		338	#endif
225		339
226	#define array_roundsize(base,n) ((n) | 4 & ~3)	340	#define array_roundsize(type,n) (((n) | 4) & ~3)
227		341
228	#define array_needsize(base,cur,cnt,init) \	342	#define array_needsize(type,base,cur,cnt,init) \
229	if (expect_false ((cnt) > cur)) \	343	if (expect_false ((cnt) > cur)) \
230	{ \	344	{ \
231	int newcnt = cur; \	345	int newcnt = cur; \
232	do \	346	do \
233	{ \	347	{ \
234	newcnt = array_roundsize (base, newcnt << 1); \	348	newcnt = array_roundsize (type, newcnt << 1); \
235	} \	349	} \
236	while ((cnt) > newcnt); \	350	while ((cnt) > newcnt); \
237	\	351	\
238	base = realloc (base, sizeof (*base) * (newcnt)); \	352	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
239	init (base + cur, newcnt - cur); \	353	init (base + cur, newcnt - cur); \
240	cur = newcnt; \	354	cur = newcnt; \
241	}	355	}
242		356
243	#define array_slim(stem) \	357	#define array_slim(type,stem) \
244	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \	358	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
245	{ \	359	{ \
246	stem ## max = array_roundsize (stem ## cnt >> 1); \	360	stem ## max = array_roundsize (stem ## cnt >> 1); \
247	base = realloc (base, sizeof (*base) * (stem ## max)); \	361	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
248	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\	362	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
249	}	363	}
250		364
251	#define array_free(stem, idx) \	365	#define array_free(stem, idx) \
252	free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;	366	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
253		367
254	/*****************************************************************************/	368	/*****************************************************************************/
255		369
256	static void	370	static void
257	anfds_init (ANFD *base, int count)	371	anfds_init (ANFD *base, int count)
…		…
264		378
265	++base;	379	++base;
266	}	380	}
267	}	381	}
268		382
269	static void	383	void
270	event (EV_P_ W w, int events)	384	ev_feed_event (EV_P_ void *w, int revents)
271	{	385	{
272	if (w->pending)	386	W w_ = (W)w;
		387
		388	if (expect_false (w_->pending))
273	{	389	{
274	pendings [ABSPRI (w)][w->pending - 1].events |= events;	390	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
275	return;	391	return;
276	}	392	}
277		393
278	w->pending = ++pendingcnt [ABSPRI (w)];	394	w_->pending = ++pendingcnt [ABSPRI (w_)];
279	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	395	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
280	pendings [ABSPRI (w)][w->pending - 1].w = w;	396	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
281	pendings [ABSPRI (w)][w->pending - 1].events = events;	397	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
282	}	398	}
283		399
284	static void	400	static void
285	queue_events (EV_P_ W *events, int eventcnt, int type)	401	queue_events (EV_P_ W *events, int eventcnt, int type)
286	{	402	{
287	int i;	403	int i;
288		404
289	for (i = 0; i < eventcnt; ++i)	405	for (i = 0; i < eventcnt; ++i)
290	event (EV_A_ events [i], type);	406	ev_feed_event (EV_A_ events [i], type);
291	}	407	}
292		408
293	static void	409	inline void
294	fd_event (EV_P_ int fd, int events)	410	fd_event (EV_P_ int fd, int revents)
295	{	411	{
296	ANFD *anfd = anfds + fd;	412	ANFD *anfd = anfds + fd;
297	struct ev_io *w;	413	struct ev_io *w;
298		414
299	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	415	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
300	{	416	{
301	int ev = w->events & events;	417	int ev = w->events & revents;
302		418
303	if (ev)	419	if (ev)
304	event (EV_A_ (W)w, ev);	420	ev_feed_event (EV_A_ (W)w, ev);
305	}	421	}
		422	}
		423
		424	void
		425	ev_feed_fd_event (EV_P_ int fd, int revents)
		426	{
		427	fd_event (EV_A_ fd, revents);
306	}	428	}
307		429
308	/*****************************************************************************/	430	/*****************************************************************************/
309		431
310	static void	432	inline void
311	fd_reify (EV_P)	433	fd_reify (EV_P)
312	{	434	{
313	int i;	435	int i;
314		436
315	for (i = 0; i < fdchangecnt; ++i)	437	for (i = 0; i < fdchangecnt; ++i)
…		…
321	int events = 0;	443	int events = 0;
322		444
323	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	445	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
324	events |= w->events;	446	events |= w->events;
325		447
		448	#if EV_SELECT_IS_WINSOCKET
		449	if (events)
		450	{
		451	unsigned long argp;
		452	anfd->handle = _get_osfhandle (fd);
		453	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		454	}
		455	#endif
		456
326	anfd->reify = 0;	457	anfd->reify = 0;
327		458
328	method_modify (EV_A_ fd, anfd->events, events);	459	method_modify (EV_A_ fd, anfd->events, events);
329	anfd->events = events;	460	anfd->events = events;
330	}	461	}
…		…
333	}	464	}
334		465
335	static void	466	static void
336	fd_change (EV_P_ int fd)	467	fd_change (EV_P_ int fd)
337	{	468	{
338	if (anfds [fd].reify || fdchangecnt < 0)	469	if (expect_false (anfds [fd].reify))
339	return;	470	return;
340		471
341	anfds [fd].reify = 1;	472	anfds [fd].reify = 1;
342		473
343	++fdchangecnt;	474	++fdchangecnt;
344	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	475	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
345	fdchanges [fdchangecnt - 1] = fd;	476	fdchanges [fdchangecnt - 1] = fd;
346	}	477	}
347		478
348	static void	479	static void
349	fd_kill (EV_P_ int fd)	480	fd_kill (EV_P_ int fd)
…		…
351	struct ev_io *w;	482	struct ev_io *w;
352		483
353	while ((w = (struct ev_io *)anfds [fd].head))	484	while ((w = (struct ev_io *)anfds [fd].head))
354	{	485	{
355	ev_io_stop (EV_A_ w);	486	ev_io_stop (EV_A_ w);
356	event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	487	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
357	}	488	}
		489	}
		490
		491	inline int
		492	fd_valid (int fd)
		493	{
		494	#ifdef _WIN32
		495	return _get_osfhandle (fd) != -1;
		496	#else
		497	return fcntl (fd, F_GETFD) != -1;
		498	#endif
358	}	499	}
359		500
360	/* called on EBADF to verify fds */	501	/* called on EBADF to verify fds */
361	static void	502	static void
362	fd_ebadf (EV_P)	503	fd_ebadf (EV_P)
363	{	504	{
364	int fd;	505	int fd;
365		506
366	for (fd = 0; fd < anfdmax; ++fd)	507	for (fd = 0; fd < anfdmax; ++fd)
367	if (anfds [fd].events)	508	if (anfds [fd].events)
368	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	509	if (!fd_valid (fd) == -1 && errno == EBADF)
369	fd_kill (EV_A_ fd);	510	fd_kill (EV_A_ fd);
370	}	511	}
371		512
372	/* called on ENOMEM in select/poll to kill some fds and retry */	513	/* called on ENOMEM in select/poll to kill some fds and retry */
373	static void	514	static void
…		…
381	fd_kill (EV_A_ fd);	522	fd_kill (EV_A_ fd);
382	return;	523	return;
383	}	524	}
384	}	525	}
385		526
386	/* susually called after fork if method needs to re-arm all fds from scratch */	527	/* usually called after fork if method needs to re-arm all fds from scratch */
387	static void	528	static void
388	fd_rearm_all (EV_P)	529	fd_rearm_all (EV_P)
389	{	530	{
390	int fd;	531	int fd;
391		532
…		…
439		580
440	heap [k] = w;	581	heap [k] = w;
441	((W)heap [k])->active = k + 1;	582	((W)heap [k])->active = k + 1;
442	}	583	}
443		584
		585	inline void
		586	adjustheap (WT *heap, int N, int k)
		587	{
		588	upheap (heap, k);
		589	downheap (heap, N, k);
		590	}
		591
444	/*****************************************************************************/	592	/*****************************************************************************/
445		593
446	typedef struct	594	typedef struct
447	{	595	{
448	WL head;	596	WL head;
…		…
469	}	617	}
470		618
471	static void	619	static void
472	sighandler (int signum)	620	sighandler (int signum)
473	{	621	{
474	#if WIN32	622	#if _WIN32
475	signal (signum, sighandler);	623	signal (signum, sighandler);
476	#endif	624	#endif
477		625
478	signals [signum - 1].gotsig = 1;	626	signals [signum - 1].gotsig = 1;
479		627
…		…
484	write (sigpipe [1], &signum, 1);	632	write (sigpipe [1], &signum, 1);
485	errno = old_errno;	633	errno = old_errno;
486	}	634	}
487	}	635	}
488		636
		637	void
		638	ev_feed_signal_event (EV_P_ int signum)
		639	{
		640	WL w;
		641
		642	#if EV_MULTIPLICITY
		643	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		644	#endif
		645
		646	--signum;
		647
		648	if (signum < 0 || signum >= signalmax)
		649	return;
		650
		651	signals [signum].gotsig = 0;
		652
		653	for (w = signals [signum].head; w; w = w->next)
		654	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		655	}
		656
489	static void	657	static void
490	sigcb (EV_P_ struct ev_io *iow, int revents)	658	sigcb (EV_P_ struct ev_io *iow, int revents)
491	{	659	{
492	WL w;
493	int signum;	660	int signum;
494		661
495	read (sigpipe [0], &revents, 1);	662	read (sigpipe [0], &revents, 1);
496	gotsig = 0;	663	gotsig = 0;
497		664
498	for (signum = signalmax; signum--; )	665	for (signum = signalmax; signum--; )
499	if (signals [signum].gotsig)	666	if (signals [signum].gotsig)
500	{	667	ev_feed_signal_event (EV_A_ signum + 1);
501	signals [signum].gotsig = 0;	668	}
502		669
503	for (w = signals [signum].head; w; w = w->next)	670	static void
504	event (EV_A_ (W)w, EV_SIGNAL);	671	fd_intern (int fd)
505	}	672	{
		673	#ifdef _WIN32
		674	int arg = 1;
		675	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		676	#else
		677	fcntl (fd, F_SETFD, FD_CLOEXEC);
		678	fcntl (fd, F_SETFL, O_NONBLOCK);
		679	#endif
506	}	680	}
507		681
508	static void	682	static void
509	siginit (EV_P)	683	siginit (EV_P)
510	{	684	{
511	#ifndef WIN32	685	fd_intern (sigpipe [0]);
512	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	686	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		687
520	ev_io_set (&sigev, sigpipe [0], EV_READ);	688	ev_io_set (&sigev, sigpipe [0], EV_READ);
521	ev_io_start (EV_A_ &sigev);	689	ev_io_start (EV_A_ &sigev);
522	ev_unref (EV_A); /* child watcher should not keep loop alive */	690	ev_unref (EV_A); /* child watcher should not keep loop alive */
523	}	691	}
524		692
525	/*****************************************************************************/	693	/*****************************************************************************/
526		694
527	#ifndef WIN32
528
529	static struct ev_child *childs [PID_HASHSIZE];	695	static struct ev_child *childs [PID_HASHSIZE];
		696
		697	#ifndef _WIN32
		698
530	static struct ev_signal childev;	699	static struct ev_signal childev;
531		700
532	#ifndef WCONTINUED	701	#ifndef WCONTINUED
533	# define WCONTINUED 0	702	# define WCONTINUED 0
534	#endif	703	#endif
…		…
542	if (w->pid == pid || !w->pid)	711	if (w->pid == pid || !w->pid)
543	{	712	{
544	ev_priority (w) = ev_priority (sw); /* need to do it *now* */	713	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
545	w->rpid = pid;	714	w->rpid = pid;
546	w->rstatus = status;	715	w->rstatus = status;
547	event (EV_A_ (W)w, EV_CHILD);	716	ev_feed_event (EV_A_ (W)w, EV_CHILD);
548	}	717	}
549	}	718	}
550		719
551	static void	720	static void
552	childcb (EV_P_ struct ev_signal *sw, int revents)	721	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
554	int pid, status;	723	int pid, status;
555		724
556	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	725	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
557	{	726	{
558	/* make sure we are called again until all childs have been reaped */	727	/* make sure we are called again until all childs have been reaped */
559	event (EV_A_ (W)sw, EV_SIGNAL);	728	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
560		729
561	child_reap (EV_A_ sw, pid, pid, status);	730	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 */	731	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
563	}	732	}
564	}	733	}
565		734
566	#endif	735	#endif
567		736
568	/*****************************************************************************/	737	/*****************************************************************************/
569		738
		739	#if EV_USE_PORT
		740	# include "ev_port.c"
		741	#endif
570	#if EV_USE_KQUEUE	742	#if EV_USE_KQUEUE
571	# include "ev_kqueue.c"	743	# include "ev_kqueue.c"
572	#endif	744	#endif
573	#if EV_USE_EPOLL	745	#if EV_USE_EPOLL
574	# include "ev_epoll.c"	746	# include "ev_epoll.c"
…		…
594		766
595	/* return true if we are running with elevated privileges and should ignore env variables */	767	/* return true if we are running with elevated privileges and should ignore env variables */
596	static int	768	static int
597	enable_secure (void)	769	enable_secure (void)
598	{	770	{
599	#ifdef WIN32	771	#ifdef _WIN32
600	return 0;	772	return 0;
601	#else	773	#else
602	return getuid () != geteuid ()	774	return getuid () != geteuid ()
603	|| getgid () != getegid ();	775	|| getgid () != getegid ();
604	#endif	776	#endif
605	}	777	}
606		778
607	int	779	unsigned int
608	ev_method (EV_P)	780	ev_method (EV_P)
609	{	781	{
610	return method;	782	return method;
611	}	783	}
612		784
613	static void	785	static void
614	loop_init (EV_P_ int methods)	786	loop_init (EV_P_ unsigned int flags)
615	{	787	{
616	if (!method)	788	if (!method)
617	{	789	{
618	#if EV_USE_MONOTONIC	790	#if EV_USE_MONOTONIC
619	{	791	{
…		…
621	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	793	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
622	have_monotonic = 1;	794	have_monotonic = 1;
623	}	795	}
624	#endif	796	#endif
625		797
626	rt_now = ev_time ();	798	ev_rt_now = ev_time ();
627	mn_now = get_clock ();	799	mn_now = get_clock ();
628	now_floor = mn_now;	800	now_floor = mn_now;
629	rtmn_diff = rt_now - mn_now;	801	rtmn_diff = ev_rt_now - mn_now;
630		802
631	if (methods == EVMETHOD_AUTO)	803	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
632	if (!enable_secure () && getenv ("LIBEV_METHODS"))
633	methods = atoi (getenv ("LIBEV_METHODS"));	804	flags = atoi (getenv ("LIBEV_FLAGS"));
634	else	805
635	methods = EVMETHOD_ANY;	806	if (!(flags & 0x0000ffff))
		807	flags |= 0x0000ffff;
636		808
637	method = 0;	809	method = 0;
638	#if EV_USE_WIN32	810	#if EV_USE_PORT
639	if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods);	811	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
640	#endif	812	#endif
641	#if EV_USE_KQUEUE	813	#if EV_USE_KQUEUE
642	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	814	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
643	#endif	815	#endif
644	#if EV_USE_EPOLL	816	#if EV_USE_EPOLL
645	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	817	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
646	#endif	818	#endif
647	#if EV_USE_POLL	819	#if EV_USE_POLL
648	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	820	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
649	#endif	821	#endif
650	#if EV_USE_SELECT	822	#if EV_USE_SELECT
651	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	823	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
652	#endif	824	#endif
653	}
654	}
655		825
656	void	826	ev_init (&sigev, sigcb);
		827	ev_set_priority (&sigev, EV_MAXPRI);
		828	}
		829	}
		830
		831	static void
657	loop_destroy (EV_P)	832	loop_destroy (EV_P)
658	{	833	{
659	int i;	834	int i;
660		835
661	#if EV_USE_WIN32	836	#if EV_USE_PORT
662	if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A);	837	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
663	#endif	838	#endif
664	#if EV_USE_KQUEUE	839	#if EV_USE_KQUEUE
665	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	840	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
666	#endif	841	#endif
667	#if EV_USE_EPOLL	842	#if EV_USE_EPOLL
…		…
675	#endif	850	#endif
676		851
677	for (i = NUMPRI; i--; )	852	for (i = NUMPRI; i--; )
678	array_free (pending, [i]);	853	array_free (pending, [i]);
679		854
		855	/* have to use the microsoft-never-gets-it-right macro */
680	array_free (fdchange, );	856	array_free (fdchange, EMPTY0);
681	array_free (timer, );	857	array_free (timer, EMPTY0);
		858	#if EV_PERIODICS
682	array_free (periodic, );	859	array_free (periodic, EMPTY0);
		860	#endif
683	array_free (idle, );	861	array_free (idle, EMPTY0);
684	array_free (prepare, );	862	array_free (prepare, EMPTY0);
685	array_free (check, );	863	array_free (check, EMPTY0);
686		864
687	method = 0;	865	method = 0;
688	/*TODO*/
689	}	866	}
690		867
691	void	868	static void
692	loop_fork (EV_P)	869	loop_fork (EV_P)
693	{	870	{
694	/*TODO*/	871	#if EV_USE_PORT
		872	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		873	#endif
		874	#if EV_USE_KQUEUE
		875	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		876	#endif
695	#if EV_USE_EPOLL	877	#if EV_USE_EPOLL
696	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	878	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
697	#endif	879	#endif
698	#if EV_USE_KQUEUE	880
699	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	881	if (ev_is_active (&sigev))
700	#endif	882	{
		883	/* default loop */
		884
		885	ev_ref (EV_A);
		886	ev_io_stop (EV_A_ &sigev);
		887	close (sigpipe [0]);
		888	close (sigpipe [1]);
		889
		890	while (pipe (sigpipe))
		891	syserr ("(libev) error creating pipe");
		892
		893	siginit (EV_A);
		894	}
		895
		896	postfork = 0;
701	}	897	}
702		898
703	#if EV_MULTIPLICITY	899	#if EV_MULTIPLICITY
704	struct ev_loop *	900	struct ev_loop *
705	ev_loop_new (int methods)	901	ev_loop_new (unsigned int flags)
706	{	902	{
707	struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));	903	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
708		904
		905	memset (loop, 0, sizeof (struct ev_loop));
		906
709	loop_init (EV_A_ methods);	907	loop_init (EV_A_ flags);
710		908
711	if (ev_method (EV_A))	909	if (ev_method (EV_A))
712	return loop;	910	return loop;
713		911
714	return 0;	912	return 0;
…		…
716		914
717	void	915	void
718	ev_loop_destroy (EV_P)	916	ev_loop_destroy (EV_P)
719	{	917	{
720	loop_destroy (EV_A);	918	loop_destroy (EV_A);
721	free (loop);	919	ev_free (loop);
722	}	920	}
723		921
724	void	922	void
725	ev_loop_fork (EV_P)	923	ev_loop_fork (EV_P)
726	{	924	{
727	loop_fork (EV_A);	925	postfork = 1;
728	}	926	}
729		927
730	#endif	928	#endif
731		929
732	#if EV_MULTIPLICITY	930	#if EV_MULTIPLICITY
733	struct ev_loop default_loop_struct;
734	static struct ev_loop *default_loop;
735
736	struct ev_loop *	931	struct ev_loop *
		932	ev_default_loop_init (unsigned int flags)
737	#else	933	#else
738	static int default_loop;
739
740	int	934	int
		935	ev_default_loop (unsigned int flags)
741	#endif	936	#endif
742	ev_default_loop (int methods)
743	{	937	{
744	if (sigpipe [0] == sigpipe [1])	938	if (sigpipe [0] == sigpipe [1])
745	if (pipe (sigpipe))	939	if (pipe (sigpipe))
746	return 0;	940	return 0;
747		941
748	if (!default_loop)	942	if (!ev_default_loop_ptr)
749	{	943	{
750	#if EV_MULTIPLICITY	944	#if EV_MULTIPLICITY
751	struct ev_loop *loop = default_loop = &default_loop_struct;	945	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
752	#else	946	#else
753	default_loop = 1;	947	ev_default_loop_ptr = 1;
754	#endif	948	#endif
755		949
756	loop_init (EV_A_ methods);	950	loop_init (EV_A_ flags);
757		951
758	if (ev_method (EV_A))	952	if (ev_method (EV_A))
759	{	953	{
760	ev_watcher_init (&sigev, sigcb);
761	ev_set_priority (&sigev, EV_MAXPRI);
762	siginit (EV_A);	954	siginit (EV_A);
763		955
764	#ifndef WIN32	956	#ifndef _WIN32
765	ev_signal_init (&childev, childcb, SIGCHLD);	957	ev_signal_init (&childev, childcb, SIGCHLD);
766	ev_set_priority (&childev, EV_MAXPRI);	958	ev_set_priority (&childev, EV_MAXPRI);
767	ev_signal_start (EV_A_ &childev);	959	ev_signal_start (EV_A_ &childev);
768	ev_unref (EV_A); /* child watcher should not keep loop alive */	960	ev_unref (EV_A); /* child watcher should not keep loop alive */
769	#endif	961	#endif
770	}	962	}
771	else	963	else
772	default_loop = 0;	964	ev_default_loop_ptr = 0;
773	}	965	}
774		966
775	return default_loop;	967	return ev_default_loop_ptr;
776	}	968	}
777		969
778	void	970	void
779	ev_default_destroy (void)	971	ev_default_destroy (void)
780	{	972	{
781	#if EV_MULTIPLICITY	973	#if EV_MULTIPLICITY
782	struct ev_loop *loop = default_loop;	974	struct ev_loop *loop = ev_default_loop_ptr;
783	#endif	975	#endif
784		976
		977	#ifndef _WIN32
785	ev_ref (EV_A); /* child watcher */	978	ev_ref (EV_A); /* child watcher */
786	ev_signal_stop (EV_A_ &childev);	979	ev_signal_stop (EV_A_ &childev);
		980	#endif
787		981
788	ev_ref (EV_A); /* signal watcher */	982	ev_ref (EV_A); /* signal watcher */
789	ev_io_stop (EV_A_ &sigev);	983	ev_io_stop (EV_A_ &sigev);
790		984
791	close (sigpipe [0]); sigpipe [0] = 0;	985	close (sigpipe [0]); sigpipe [0] = 0;
…		…
796		990
797	void	991	void
798	ev_default_fork (void)	992	ev_default_fork (void)
799	{	993	{
800	#if EV_MULTIPLICITY	994	#if EV_MULTIPLICITY
801	struct ev_loop *loop = default_loop;	995	struct ev_loop *loop = ev_default_loop_ptr;
802	#endif	996	#endif
803		997
804	loop_fork (EV_A);	998	if (method)
805		999	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	}	1000	}
814		1001
815	/*****************************************************************************/	1002	/*****************************************************************************/
816		1003
817	static void	1004	static int
		1005	any_pending (EV_P)
		1006	{
		1007	int pri;
		1008
		1009	for (pri = NUMPRI; pri--; )
		1010	if (pendingcnt [pri])
		1011	return 1;
		1012
		1013	return 0;
		1014	}
		1015
		1016	inline void
818	call_pending (EV_P)	1017	call_pending (EV_P)
819	{	1018	{
820	int pri;	1019	int pri;
821		1020
822	for (pri = NUMPRI; pri--; )	1021	for (pri = NUMPRI; pri--; )
823	while (pendingcnt [pri])	1022	while (pendingcnt [pri])
824	{	1023	{
825	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1024	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
826		1025
827	if (p->w)	1026	if (expect_true (p->w))
828	{	1027	{
829	p->w->pending = 0;	1028	p->w->pending = 0;
830	p->w->cb (EV_A_ p->w, p->events);	1029	EV_CB_INVOKE (p->w, p->events);
831	}	1030	}
832	}	1031	}
833	}	1032	}
834		1033
835	static void	1034	inline void
836	timers_reify (EV_P)	1035	timers_reify (EV_P)
837	{	1036	{
838	while (timercnt && ((WT)timers [0])->at <= mn_now)	1037	while (timercnt && ((WT)timers [0])->at <= mn_now)
839	{	1038	{
840	struct ev_timer *w = timers [0];	1039	struct ev_timer *w = timers [0];
…		…
843		1042
844	/* first reschedule or stop timer */	1043	/* first reschedule or stop timer */
845	if (w->repeat)	1044	if (w->repeat)
846	{	1045	{
847	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1046	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1047
848	((WT)w)->at = mn_now + w->repeat;	1048	((WT)w)->at += w->repeat;
		1049	if (((WT)w)->at < mn_now)
		1050	((WT)w)->at = mn_now;
		1051
849	downheap ((WT *)timers, timercnt, 0);	1052	downheap ((WT *)timers, timercnt, 0);
850	}	1053	}
851	else	1054	else
852	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1055	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
853		1056
854	event (EV_A_ (W)w, EV_TIMEOUT);	1057	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
855	}	1058	}
856	}	1059	}
857		1060
858	static void	1061	#if EV_PERIODICS
		1062	inline void
859	periodics_reify (EV_P)	1063	periodics_reify (EV_P)
860	{	1064	{
861	while (periodiccnt && ((WT)periodics [0])->at <= rt_now)	1065	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
862	{	1066	{
863	struct ev_periodic *w = periodics [0];	1067	struct ev_periodic *w = periodics [0];
864		1068
865	assert (("inactive timer on periodic heap detected", ev_is_active (w)));	1069	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
866		1070
867	/* first reschedule or stop timer */	1071	/* first reschedule or stop timer */
868	if (w->interval)	1072	if (w->reschedule_cb)
869	{	1073	{
		1074	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1075	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1076	downheap ((WT *)periodics, periodiccnt, 0);
		1077	}
		1078	else if (w->interval)
		1079	{
870	((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;	1080	((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));	1081	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);	1082	downheap ((WT *)periodics, periodiccnt, 0);
873	}	1083	}
874	else	1084	else
875	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1085	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
876		1086
877	event (EV_A_ (W)w, EV_PERIODIC);	1087	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
878	}	1088	}
879	}	1089	}
880		1090
881	static void	1091	static void
882	periodics_reschedule (EV_P)	1092	periodics_reschedule (EV_P)
…		…
886	/* adjust periodics after time jump */	1096	/* adjust periodics after time jump */
887	for (i = 0; i < periodiccnt; ++i)	1097	for (i = 0; i < periodiccnt; ++i)
888	{	1098	{
889	struct ev_periodic *w = periodics [i];	1099	struct ev_periodic *w = periodics [i];
890		1100
		1101	if (w->reschedule_cb)
		1102	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
891	if (w->interval)	1103	else if (w->interval)
892	{
893	ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval;	1104	((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	}	1105	}
		1106
		1107	/* now rebuild the heap */
		1108	for (i = periodiccnt >> 1; i--; )
		1109	downheap ((WT *)periodics, periodiccnt, i);
904	}	1110	}
		1111	#endif
905		1112
906	inline int	1113	inline int
907	time_update_monotonic (EV_P)	1114	time_update_monotonic (EV_P)
908	{	1115	{
909	mn_now = get_clock ();	1116	mn_now = get_clock ();
910		1117
911	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1118	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
912	{	1119	{
913	rt_now = rtmn_diff + mn_now;	1120	ev_rt_now = rtmn_diff + mn_now;
914	return 0;	1121	return 0;
915	}	1122	}
916	else	1123	else
917	{	1124	{
918	now_floor = mn_now;	1125	now_floor = mn_now;
919	rt_now = ev_time ();	1126	ev_rt_now = ev_time ();
920	return 1;	1127	return 1;
921	}	1128	}
922	}	1129	}
923		1130
924	static void	1131	inline void
925	time_update (EV_P)	1132	time_update (EV_P)
926	{	1133	{
927	int i;	1134	int i;
928		1135
929	#if EV_USE_MONOTONIC	1136	#if EV_USE_MONOTONIC
…		…
933	{	1140	{
934	ev_tstamp odiff = rtmn_diff;	1141	ev_tstamp odiff = rtmn_diff;
935		1142
936	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1143	for (i = 4; --i; ) /* loop a few times, before making important decisions */
937	{	1144	{
938	rtmn_diff = rt_now - mn_now;	1145	rtmn_diff = ev_rt_now - mn_now;
939		1146
940	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1147	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
941	return; /* all is well */	1148	return; /* all is well */
942		1149
943	rt_now = ev_time ();	1150	ev_rt_now = ev_time ();
944	mn_now = get_clock ();	1151	mn_now = get_clock ();
945	now_floor = mn_now;	1152	now_floor = mn_now;
946	}	1153	}
947		1154
		1155	# if EV_PERIODICS
948	periodics_reschedule (EV_A);	1156	periodics_reschedule (EV_A);
		1157	# endif
949	/* no timer adjustment, as the monotonic clock doesn't jump */	1158	/* no timer adjustment, as the monotonic clock doesn't jump */
950	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1159	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
951	}	1160	}
952	}	1161	}
953	else	1162	else
954	#endif	1163	#endif
955	{	1164	{
956	rt_now = ev_time ();	1165	ev_rt_now = ev_time ();
957		1166
958	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1167	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
959	{	1168	{
		1169	#if EV_PERIODICS
960	periodics_reschedule (EV_A);	1170	periodics_reschedule (EV_A);
		1171	#endif
961		1172
962	/* adjust timers. this is easy, as the offset is the same for all */	1173	/* adjust timers. this is easy, as the offset is the same for all */
963	for (i = 0; i < timercnt; ++i)	1174	for (i = 0; i < timercnt; ++i)
964	((WT)timers [i])->at += rt_now - mn_now;	1175	((WT)timers [i])->at += ev_rt_now - mn_now;
965	}	1176	}
966		1177
967	mn_now = rt_now;	1178	mn_now = ev_rt_now;
968	}	1179	}
969	}	1180	}
970		1181
971	void	1182	void
972	ev_ref (EV_P)	1183	ev_ref (EV_P)
…		…
986	ev_loop (EV_P_ int flags)	1197	ev_loop (EV_P_ int flags)
987	{	1198	{
988	double block;	1199	double block;
989	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1200	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
990		1201
991	do	1202	while (activecnt)
992	{	1203	{
993	/* queue check watchers (and execute them) */	1204	/* queue check watchers (and execute them) */
994	if (expect_false (preparecnt))	1205	if (expect_false (preparecnt))
995	{	1206	{
996	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1207	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
997	call_pending (EV_A);	1208	call_pending (EV_A);
998	}	1209	}
999		1210
		1211	/* we might have forked, so reify kernel state if necessary */
		1212	if (expect_false (postfork))
		1213	loop_fork (EV_A);
		1214
1000	/* update fd-related kernel structures */	1215	/* update fd-related kernel structures */
1001	fd_reify (EV_A);	1216	fd_reify (EV_A);
1002		1217
1003	/* calculate blocking time */	1218	/* calculate blocking time */
1004		1219
1005	/* we only need this for !monotonic clockor timers, but as we basically	1220	/* we only need this for !monotonic clock or timers, but as we basically
1006	always have timers, we just calculate it always */	1221	always have timers, we just calculate it always */
1007	#if EV_USE_MONOTONIC	1222	#if EV_USE_MONOTONIC
1008	if (expect_true (have_monotonic))	1223	if (expect_true (have_monotonic))
1009	time_update_monotonic (EV_A);	1224	time_update_monotonic (EV_A);
1010	else	1225	else
1011	#endif	1226	#endif
1012	{	1227	{
1013	rt_now = ev_time ();	1228	ev_rt_now = ev_time ();
1014	mn_now = rt_now;	1229	mn_now = ev_rt_now;
1015	}	1230	}
1016		1231
1017	if (flags & EVLOOP_NONBLOCK || idlecnt)	1232	if (flags & EVLOOP_NONBLOCK || idlecnt)
1018	block = 0.;	1233	block = 0.;
1019	else	1234	else
…		…
1024	{	1239	{
1025	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;	1240	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
1026	if (block > to) block = to;	1241	if (block > to) block = to;
1027	}	1242	}
1028		1243
		1244	#if EV_PERIODICS
1029	if (periodiccnt)	1245	if (periodiccnt)
1030	{	1246	{
1031	ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge;	1247	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
1032	if (block > to) block = to;	1248	if (block > to) block = to;
1033	}	1249	}
		1250	#endif
1034		1251
1035	if (block < 0.) block = 0.;	1252	if (expect_false (block < 0.)) block = 0.;
1036	}	1253	}
1037		1254
1038	method_poll (EV_A_ block);	1255	method_poll (EV_A_ block);
1039		1256
1040	/* update rt_now, do magic */	1257	/* update ev_rt_now, do magic */
1041	time_update (EV_A);	1258	time_update (EV_A);
1042		1259
1043	/* queue pending timers and reschedule them */	1260	/* queue pending timers and reschedule them */
1044	timers_reify (EV_A); /* relative timers called last */	1261	timers_reify (EV_A); /* relative timers called last */
		1262	#if EV_PERIODICS
1045	periodics_reify (EV_A); /* absolute timers called first */	1263	periodics_reify (EV_A); /* absolute timers called first */
		1264	#endif
1046		1265
1047	/* queue idle watchers unless io or timers are pending */	1266	/* queue idle watchers unless io or timers are pending */
1048	if (!pendingcnt)	1267	if (idlecnt && !any_pending (EV_A))
1049	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1268	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
1050		1269
1051	/* queue check watchers, to be executed first */	1270	/* queue check watchers, to be executed first */
1052	if (checkcnt)	1271	if (expect_false (checkcnt))
1053	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1272	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
1054		1273
1055	call_pending (EV_A);	1274	call_pending (EV_A);
		1275
		1276	if (expect_false (loop_done))
		1277	break;
1056	}	1278	}
1057	while (activecnt && !loop_done);
1058		1279
1059	if (loop_done != 2)	1280	if (loop_done != 2)
1060	loop_done = 0;	1281	loop_done = 0;
1061	}	1282	}
1062		1283
…		…
1122	void	1343	void
1123	ev_io_start (EV_P_ struct ev_io *w)	1344	ev_io_start (EV_P_ struct ev_io *w)
1124	{	1345	{
1125	int fd = w->fd;	1346	int fd = w->fd;
1126		1347
1127	if (ev_is_active (w))	1348	if (expect_false (ev_is_active (w)))
1128	return;	1349	return;
1129		1350
1130	assert (("ev_io_start called with negative fd", fd >= 0));	1351	assert (("ev_io_start called with negative fd", fd >= 0));
1131		1352
1132	ev_start (EV_A_ (W)w, 1);	1353	ev_start (EV_A_ (W)w, 1);
1133	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1354	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1134	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1355	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1135		1356
1136	fd_change (EV_A_ fd);	1357	fd_change (EV_A_ fd);
1137	}	1358	}
1138		1359
1139	void	1360	void
1140	ev_io_stop (EV_P_ struct ev_io *w)	1361	ev_io_stop (EV_P_ struct ev_io *w)
1141	{	1362	{
1142	ev_clear_pending (EV_A_ (W)w);	1363	ev_clear_pending (EV_A_ (W)w);
1143	if (!ev_is_active (w))	1364	if (expect_false (!ev_is_active (w)))
1144	return;	1365	return;
		1366
		1367	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
1145		1368
1146	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1369	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1147	ev_stop (EV_A_ (W)w);	1370	ev_stop (EV_A_ (W)w);
1148		1371
1149	fd_change (EV_A_ w->fd);	1372	fd_change (EV_A_ w->fd);
1150	}	1373	}
1151		1374
1152	void	1375	void
1153	ev_timer_start (EV_P_ struct ev_timer *w)	1376	ev_timer_start (EV_P_ struct ev_timer *w)
1154	{	1377	{
1155	if (ev_is_active (w))	1378	if (expect_false (ev_is_active (w)))
1156	return;	1379	return;
1157		1380
1158	((WT)w)->at += mn_now;	1381	((WT)w)->at += mn_now;
1159		1382
1160	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1383	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1161		1384
1162	ev_start (EV_A_ (W)w, ++timercnt);	1385	ev_start (EV_A_ (W)w, ++timercnt);
1163	array_needsize (timers, timermax, timercnt, );	1386	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1164	timers [timercnt - 1] = w;	1387	timers [timercnt - 1] = w;
1165	upheap ((WT *)timers, timercnt - 1);	1388	upheap ((WT *)timers, timercnt - 1);
1166		1389
1167	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1390	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1168	}	1391	}
1169		1392
1170	void	1393	void
1171	ev_timer_stop (EV_P_ struct ev_timer *w)	1394	ev_timer_stop (EV_P_ struct ev_timer *w)
1172	{	1395	{
1173	ev_clear_pending (EV_A_ (W)w);	1396	ev_clear_pending (EV_A_ (W)w);
1174	if (!ev_is_active (w))	1397	if (expect_false (!ev_is_active (w)))
1175	return;	1398	return;
1176		1399
1177	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));	1400	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1178		1401
1179	if (((W)w)->active < timercnt--)	1402	if (expect_true (((W)w)->active < timercnt--))
1180	{	1403	{
1181	timers [((W)w)->active - 1] = timers [timercnt];	1404	timers [((W)w)->active - 1] = timers [timercnt];
1182	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1183	}	1406	}
1184		1407
1185	((WT)w)->at = w->repeat;	1408	((WT)w)->at -= mn_now;
1186		1409
1187	ev_stop (EV_A_ (W)w);	1410	ev_stop (EV_A_ (W)w);
1188	}	1411	}
1189		1412
1190	void	1413	void
…		…
1193	if (ev_is_active (w))	1416	if (ev_is_active (w))
1194	{	1417	{
1195	if (w->repeat)	1418	if (w->repeat)
1196	{	1419	{
1197	((WT)w)->at = mn_now + w->repeat;	1420	((WT)w)->at = mn_now + w->repeat;
1198	downheap ((WT *)timers, timercnt, ((W)w)->active - 1);	1421	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1199	}	1422	}
1200	else	1423	else
1201	ev_timer_stop (EV_A_ w);	1424	ev_timer_stop (EV_A_ w);
1202	}	1425	}
1203	else if (w->repeat)	1426	else if (w->repeat)
		1427	{
		1428	w->at = w->repeat;
1204	ev_timer_start (EV_A_ w);	1429	ev_timer_start (EV_A_ w);
		1430	}
1205	}	1431	}
1206		1432
		1433	#if EV_PERIODICS
1207	void	1434	void
1208	ev_periodic_start (EV_P_ struct ev_periodic *w)	1435	ev_periodic_start (EV_P_ struct ev_periodic *w)
1209	{	1436	{
1210	if (ev_is_active (w))	1437	if (expect_false (ev_is_active (w)))
1211	return;	1438	return;
1212		1439
		1440	if (w->reschedule_cb)
		1441	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1442	else if (w->interval)
		1443	{
1213	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1444	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 */	1445	/* 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;	1446	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1447	}
1218		1448
1219	ev_start (EV_A_ (W)w, ++periodiccnt);	1449	ev_start (EV_A_ (W)w, ++periodiccnt);
1220	array_needsize (periodics, periodicmax, periodiccnt, );	1450	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1221	periodics [periodiccnt - 1] = w;	1451	periodics [periodiccnt - 1] = w;
1222	upheap ((WT *)periodics, periodiccnt - 1);	1452	upheap ((WT *)periodics, periodiccnt - 1);
1223		1453
1224	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1454	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1225	}	1455	}
1226		1456
1227	void	1457	void
1228	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1458	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1229	{	1459	{
1230	ev_clear_pending (EV_A_ (W)w);	1460	ev_clear_pending (EV_A_ (W)w);
1231	if (!ev_is_active (w))	1461	if (expect_false (!ev_is_active (w)))
1232	return;	1462	return;
1233		1463
1234	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));	1464	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1235		1465
1236	if (((W)w)->active < periodiccnt--)	1466	if (expect_true (((W)w)->active < periodiccnt--))
1237	{	1467	{
1238	periodics [((W)w)->active - 1] = periodics [periodiccnt];	1468	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1239	downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);	1469	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1240	}	1470	}
1241		1471
1242	ev_stop (EV_A_ (W)w);	1472	ev_stop (EV_A_ (W)w);
1243	}	1473	}
1244		1474
1245	void	1475	void
		1476	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1477	{
		1478	/* TODO: use adjustheap and recalculation */
		1479	ev_periodic_stop (EV_A_ w);
		1480	ev_periodic_start (EV_A_ w);
		1481	}
		1482	#endif
		1483
		1484	void
1246	ev_idle_start (EV_P_ struct ev_idle *w)	1485	ev_idle_start (EV_P_ struct ev_idle *w)
1247	{	1486	{
1248	if (ev_is_active (w))	1487	if (expect_false (ev_is_active (w)))
1249	return;	1488	return;
1250		1489
1251	ev_start (EV_A_ (W)w, ++idlecnt);	1490	ev_start (EV_A_ (W)w, ++idlecnt);
1252	array_needsize (idles, idlemax, idlecnt, );	1491	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1253	idles [idlecnt - 1] = w;	1492	idles [idlecnt - 1] = w;
1254	}	1493	}
1255		1494
1256	void	1495	void
1257	ev_idle_stop (EV_P_ struct ev_idle *w)	1496	ev_idle_stop (EV_P_ struct ev_idle *w)
1258	{	1497	{
1259	ev_clear_pending (EV_A_ (W)w);	1498	ev_clear_pending (EV_A_ (W)w);
1260	if (ev_is_active (w))	1499	if (expect_false (!ev_is_active (w)))
1261	return;	1500	return;
1262		1501
1263	idles [((W)w)->active - 1] = idles [--idlecnt];	1502	idles [((W)w)->active - 1] = idles [--idlecnt];
1264	ev_stop (EV_A_ (W)w);	1503	ev_stop (EV_A_ (W)w);
1265	}	1504	}
1266		1505
1267	void	1506	void
1268	ev_prepare_start (EV_P_ struct ev_prepare *w)	1507	ev_prepare_start (EV_P_ struct ev_prepare *w)
1269	{	1508	{
1270	if (ev_is_active (w))	1509	if (expect_false (ev_is_active (w)))
1271	return;	1510	return;
1272		1511
1273	ev_start (EV_A_ (W)w, ++preparecnt);	1512	ev_start (EV_A_ (W)w, ++preparecnt);
1274	array_needsize (prepares, preparemax, preparecnt, );	1513	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
1275	prepares [preparecnt - 1] = w;	1514	prepares [preparecnt - 1] = w;
1276	}	1515	}
1277		1516
1278	void	1517	void
1279	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1518	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1280	{	1519	{
1281	ev_clear_pending (EV_A_ (W)w);	1520	ev_clear_pending (EV_A_ (W)w);
1282	if (ev_is_active (w))	1521	if (expect_false (!ev_is_active (w)))
1283	return;	1522	return;
1284		1523
1285	prepares [((W)w)->active - 1] = prepares [--preparecnt];	1524	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1286	ev_stop (EV_A_ (W)w);	1525	ev_stop (EV_A_ (W)w);
1287	}	1526	}
1288		1527
1289	void	1528	void
1290	ev_check_start (EV_P_ struct ev_check *w)	1529	ev_check_start (EV_P_ struct ev_check *w)
1291	{	1530	{
1292	if (ev_is_active (w))	1531	if (expect_false (ev_is_active (w)))
1293	return;	1532	return;
1294		1533
1295	ev_start (EV_A_ (W)w, ++checkcnt);	1534	ev_start (EV_A_ (W)w, ++checkcnt);
1296	array_needsize (checks, checkmax, checkcnt, );	1535	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1297	checks [checkcnt - 1] = w;	1536	checks [checkcnt - 1] = w;
1298	}	1537	}
1299		1538
1300	void	1539	void
1301	ev_check_stop (EV_P_ struct ev_check *w)	1540	ev_check_stop (EV_P_ struct ev_check *w)
1302	{	1541	{
1303	ev_clear_pending (EV_A_ (W)w);	1542	ev_clear_pending (EV_A_ (W)w);
1304	if (ev_is_active (w))	1543	if (expect_false (!ev_is_active (w)))
1305	return;	1544	return;
1306		1545
1307	checks [((W)w)->active - 1] = checks [--checkcnt];	1546	checks [((W)w)->active - 1] = checks [--checkcnt];
1308	ev_stop (EV_A_ (W)w);	1547	ev_stop (EV_A_ (W)w);
1309	}	1548	}
…		…
1314		1553
1315	void	1554	void
1316	ev_signal_start (EV_P_ struct ev_signal *w)	1555	ev_signal_start (EV_P_ struct ev_signal *w)
1317	{	1556	{
1318	#if EV_MULTIPLICITY	1557	#if EV_MULTIPLICITY
1319	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1558	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1320	#endif	1559	#endif
1321	if (ev_is_active (w))	1560	if (expect_false (ev_is_active (w)))
1322	return;	1561	return;
1323		1562
1324	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1563	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1325		1564
1326	ev_start (EV_A_ (W)w, 1);	1565	ev_start (EV_A_ (W)w, 1);
1327	array_needsize (signals, signalmax, w->signum, signals_init);	1566	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1328	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1567	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1329		1568
1330	if (!((WL)w)->next)	1569	if (!((WL)w)->next)
1331	{	1570	{
1332	#if WIN32	1571	#if _WIN32
1333	signal (w->signum, sighandler);	1572	signal (w->signum, sighandler);
1334	#else	1573	#else
1335	struct sigaction sa;	1574	struct sigaction sa;
1336	sa.sa_handler = sighandler;	1575	sa.sa_handler = sighandler;
1337	sigfillset (&sa.sa_mask);	1576	sigfillset (&sa.sa_mask);
…		…
1343		1582
1344	void	1583	void
1345	ev_signal_stop (EV_P_ struct ev_signal *w)	1584	ev_signal_stop (EV_P_ struct ev_signal *w)
1346	{	1585	{
1347	ev_clear_pending (EV_A_ (W)w);	1586	ev_clear_pending (EV_A_ (W)w);
1348	if (!ev_is_active (w))	1587	if (expect_false (!ev_is_active (w)))
1349	return;	1588	return;
1350		1589
1351	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1590	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1352	ev_stop (EV_A_ (W)w);	1591	ev_stop (EV_A_ (W)w);
1353		1592
…		…
1357		1596
1358	void	1597	void
1359	ev_child_start (EV_P_ struct ev_child *w)	1598	ev_child_start (EV_P_ struct ev_child *w)
1360	{	1599	{
1361	#if EV_MULTIPLICITY	1600	#if EV_MULTIPLICITY
1362	assert (("child watchers are only supported in the default loop", loop == default_loop));	1601	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1363	#endif	1602	#endif
1364	if (ev_is_active (w))	1603	if (expect_false (ev_is_active (w)))
1365	return;	1604	return;
1366		1605
1367	ev_start (EV_A_ (W)w, 1);	1606	ev_start (EV_A_ (W)w, 1);
1368	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1607	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1369	}	1608	}
1370		1609
1371	void	1610	void
1372	ev_child_stop (EV_P_ struct ev_child *w)	1611	ev_child_stop (EV_P_ struct ev_child *w)
1373	{	1612	{
1374	ev_clear_pending (EV_A_ (W)w);	1613	ev_clear_pending (EV_A_ (W)w);
1375	if (ev_is_active (w))	1614	if (expect_false (!ev_is_active (w)))
1376	return;	1615	return;
1377		1616
1378	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1617	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1379	ev_stop (EV_A_ (W)w);	1618	ev_stop (EV_A_ (W)w);
1380	}	1619	}
…		…
1395	void (*cb)(int revents, void *arg) = once->cb;	1634	void (*cb)(int revents, void *arg) = once->cb;
1396	void *arg = once->arg;	1635	void *arg = once->arg;
1397		1636
1398	ev_io_stop (EV_A_ &once->io);	1637	ev_io_stop (EV_A_ &once->io);
1399	ev_timer_stop (EV_A_ &once->to);	1638	ev_timer_stop (EV_A_ &once->to);
1400	free (once);	1639	ev_free (once);
1401		1640
1402	cb (revents, arg);	1641	cb (revents, arg);
1403	}	1642	}
1404		1643
1405	static void	1644	static void
…		…
1415	}	1654	}
1416		1655
1417	void	1656	void
1418	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1657	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1419	{	1658	{
1420	struct ev_once *once = malloc (sizeof (struct ev_once));	1659	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1421		1660
1422	if (!once)	1661	if (expect_false (!once))
		1662	{
1423	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1663	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1424	else	1664	return;
1425	{	1665	}
		1666
1426	once->cb = cb;	1667	once->cb = cb;
1427	once->arg = arg;	1668	once->arg = arg;
1428		1669
1429	ev_watcher_init (&once->io, once_cb_io);	1670	ev_init (&once->io, once_cb_io);
1430	if (fd >= 0)	1671	if (fd >= 0)
1431	{	1672	{
1432	ev_io_set (&once->io, fd, events);	1673	ev_io_set (&once->io, fd, events);
1433	ev_io_start (EV_A_ &once->io);	1674	ev_io_start (EV_A_ &once->io);
1434	}	1675	}
1435		1676
1436	ev_watcher_init (&once->to, once_cb_to);	1677	ev_init (&once->to, once_cb_to);
1437	if (timeout >= 0.)	1678	if (timeout >= 0.)
1438	{	1679	{
1439	ev_timer_set (&once->to, timeout, 0.);	1680	ev_timer_set (&once->to, timeout, 0.);
1440	ev_timer_start (EV_A_ &once->to);	1681	ev_timer_start (EV_A_ &once->to);
1441	}
1442	}	1682	}
1443	}	1683	}
1444		1684
		1685	#ifdef __cplusplus
		1686	}
		1687	#endif
		1688

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