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Comparing libev/ev.c (file contents):
Revision 1.58 by root, Sun Nov 4 16:52:52 2007 UTC vs.
Revision 1.119 by root, Fri Nov 16 01:43:52 2007 UTC

…		…
26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	26	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	27	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE	28	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	29	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30	*/	30	*/
31	#ifndef EV_EMBED	31
		32	#ifdef __cplusplus
		33	extern "C" {
		34	#endif
		35
		36	#ifndef EV_STANDALONE
32	# include "config.h"	37	# include "config.h"
		38
		39	# if HAVE_CLOCK_GETTIME
		40	# ifndef EV_USE_MONOTONIC
		41	# define EV_USE_MONOTONIC 1
		42	# endif
		43	# ifndef EV_USE_REALTIME
		44	# define EV_USE_REALTIME 1
		45	# endif
		46	# endif
		47
		48	# if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT)
		49	# define EV_USE_SELECT 1
		50	# endif
		51
		52	# if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL)
		53	# define EV_USE_POLL 1
		54	# endif
		55
		56	# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL)
		57	# define EV_USE_EPOLL 1
		58	# endif
		59
		60	# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE)
		61	# define EV_USE_KQUEUE 1
		62	# endif
		63
		64	# if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT)
		65	# define EV_USE_PORT 1
		66	# endif
		67
33	#endif	68	#endif
34		69
35	#include <math.h>	70	#include <math.h>
36	#include <stdlib.h>	71	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	72	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	73	#include <stddef.h>
41		74
42	#include <stdio.h>	75	#include <stdio.h>
43		76
44	#include <assert.h>	77	#include <assert.h>
45	#include <errno.h>	78	#include <errno.h>
46	#include <sys/types.h>	79	#include <sys/types.h>
		80	#include <time.h>
		81
		82	#include <signal.h>
		83
47	#ifndef WIN32	84	#ifndef _WIN32
		85	# include <unistd.h>
		86	# include <sys/time.h>
48	# 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
49	#endif	93	# endif
50	#include <sys/time.h>	94	#endif
51	#include <time.h>
52		95
53	/**/	96	/**/
54		97
55	#ifndef EV_USE_MONOTONIC	98	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	99	# define EV_USE_MONOTONIC 1
57	#endif	100	#endif
58		101
		102	#ifndef EV_USE_REALTIME
		103	# define EV_USE_REALTIME 1
		104	#endif
		105
59	#ifndef EV_USE_SELECT	106	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	107	# define EV_USE_SELECT 1
		108	# define EV_SELECT_USE_FD_SET 1
61	#endif	109	#endif
62		110
63	#ifndef EV_USEV_POLL	111	#ifndef EV_USE_POLL
64	# define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */	112	# ifdef _WIN32
		113	# define EV_USE_POLL 0
		114	# else
		115	# define EV_USE_POLL 1
		116	# endif
65	#endif	117	#endif
66		118
67	#ifndef EV_USE_EPOLL	119	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	120	# define EV_USE_EPOLL 0
69	#endif	121	#endif
70		122
71	#ifndef EV_USE_KQUEUE	123	#ifndef EV_USE_KQUEUE
72	# define EV_USE_KQUEUE 0	124	# define EV_USE_KQUEUE 0
73	#endif	125	#endif
74		126
75	#ifndef EV_USE_REALTIME	127	#ifndef EV_USE_PORT
76	# define EV_USE_REALTIME 1	128	# define EV_USE_PORT 0
77	#endif	129	#endif
78		130
79	/**/	131	/**/
		132
		133	/* darwin simply cannot be helped */
		134	#ifdef __APPLE__
		135	# undef EV_USE_POLL
		136	# undef EV_USE_KQUEUE
		137	#endif
80		138
81	#ifndef CLOCK_MONOTONIC	139	#ifndef CLOCK_MONOTONIC
82	# undef EV_USE_MONOTONIC	140	# undef EV_USE_MONOTONIC
83	# define EV_USE_MONOTONIC 0	141	# define EV_USE_MONOTONIC 0
84	#endif	142	#endif
85		143
86	#ifndef CLOCK_REALTIME	144	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	145	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	146	# define EV_USE_REALTIME 0
		147	#endif
		148
		149	#if EV_SELECT_IS_WINSOCKET
		150	# include <winsock.h>
89	#endif	151	#endif
90		152
91	/**/	153	/**/
92		154
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	155	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
94	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */	156	#define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */
95	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */	157	#define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */
96	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */	158	/*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */
97		159
98	#ifndef EV_EMBED	160	#ifdef EV_H
		161	# include EV_H
		162	#else
99	# include "ev.h"	163	# include "ev.h"
100	#endif	164	#endif
101		165
102	#if __GNUC__ >= 3	166	#if __GNUC__ >= 3
103	# define expect(expr,value) __builtin_expect ((expr),(value))	167	# define expect(expr,value) __builtin_expect ((expr),(value))
…		…
111	#define expect_true(expr) expect ((expr) != 0, 1)	175	#define expect_true(expr) expect ((expr) != 0, 1)
112		176
113	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	177	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
114	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	178	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
115		179
		180	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		181	#define EMPTY2(a,b) /* used to suppress some warnings */
		182
116	typedef struct ev_watcher *W;	183	typedef struct ev_watcher *W;
117	typedef struct ev_watcher_list *WL;	184	typedef struct ev_watcher_list *WL;
118	typedef struct ev_watcher_time *WT;	185	typedef struct ev_watcher_time *WT;
119		186
120	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	187	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
121		188
		189	#ifdef _WIN32
		190	# include "ev_win32.c"
		191	#endif
		192
122	/*****************************************************************************/	193	/*****************************************************************************/
123		194
		195	static void (*syserr_cb)(const char *msg);
		196
		197	void ev_set_syserr_cb (void (*cb)(const char *msg))
		198	{
		199	syserr_cb = cb;
		200	}
		201
		202	static void
		203	syserr (const char *msg)
		204	{
		205	if (!msg)
		206	msg = "(libev) system error";
		207
		208	if (syserr_cb)
		209	syserr_cb (msg);
		210	else
		211	{
		212	perror (msg);
		213	abort ();
		214	}
		215	}
		216
		217	static void *(*alloc)(void *ptr, long size);
		218
		219	void ev_set_allocator (void *(*cb)(void *ptr, long size))
		220	{
		221	alloc = cb;
		222	}
		223
		224	static void *
		225	ev_realloc (void *ptr, long size)
		226	{
		227	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		228
		229	if (!ptr && size)
		230	{
		231	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		232	abort ();
		233	}
		234
		235	return ptr;
		236	}
		237
		238	#define ev_malloc(size) ev_realloc (0, (size))
		239	#define ev_free(ptr) ev_realloc ((ptr), 0)
		240
		241	/*****************************************************************************/
		242
124	typedef struct	243	typedef struct
125	{	244	{
126	struct ev_watcher_list *head;	245	WL head;
127	unsigned char events;	246	unsigned char events;
128	unsigned char reify;	247	unsigned char reify;
		248	#if EV_SELECT_IS_WINSOCKET
		249	SOCKET handle;
		250	#endif
129	} ANFD;	251	} ANFD;
130		252
131	typedef struct	253	typedef struct
132	{	254	{
133	W w;	255	W w;
134	int events;	256	int events;
135	} ANPENDING;	257	} ANPENDING;
136		258
137	#if EV_MULTIPLICITY	259	#if EV_MULTIPLICITY
138		260
139	struct ev_loop	261	struct ev_loop
140	{	262	{
		263	ev_tstamp ev_rt_now;
		264	#define ev_rt_now ((loop)->ev_rt_now)
141	# define VAR(name,decl) decl;	265	#define VAR(name,decl) decl;
142	# include "ev_vars.h"	266	#include "ev_vars.h"
143	};
144	# undef VAR	267	#undef VAR
		268	};
145	# include "ev_wrap.h"	269	#include "ev_wrap.h"
		270
		271	static struct ev_loop default_loop_struct;
		272	struct ev_loop *ev_default_loop_ptr;
146		273
147	#else	274	#else
148		275
		276	ev_tstamp ev_rt_now;
149	# define VAR(name,decl) static decl;	277	#define VAR(name,decl) static decl;
150	# include "ev_vars.h"	278	#include "ev_vars.h"
151	# undef VAR	279	#undef VAR
		280
		281	static int ev_default_loop_ptr;
152		282
153	#endif	283	#endif
154		284
155	/*****************************************************************************/	285	/*****************************************************************************/
156		286
157	inline ev_tstamp	287	ev_tstamp
158	ev_time (void)	288	ev_time (void)
159	{	289	{
160	#if EV_USE_REALTIME	290	#if EV_USE_REALTIME
161	struct timespec ts;	291	struct timespec ts;
162	clock_gettime (CLOCK_REALTIME, &ts);	292	clock_gettime (CLOCK_REALTIME, &ts);
…		…
181	#endif	311	#endif
182		312
183	return ev_time ();	313	return ev_time ();
184	}	314	}
185		315
		316	#if EV_MULTIPLICITY
186	ev_tstamp	317	ev_tstamp
187	ev_now (EV_P)	318	ev_now (EV_P)
188	{	319	{
189	return rt_now;	320	return ev_rt_now;
190	}	321	}
		322	#endif
191		323
192	#define array_roundsize(base,n) ((n) | 4 & ~3)	324	#define array_roundsize(type,n) (((n) | 4) & ~3)
193		325
194	#define array_needsize(base,cur,cnt,init) \	326	#define array_needsize(type,base,cur,cnt,init) \
195	if (expect_false ((cnt) > cur)) \	327	if (expect_false ((cnt) > cur)) \
196	{ \	328	{ \
197	int newcnt = cur; \	329	int newcnt = cur; \
198	do \	330	do \
199	{ \	331	{ \
200	newcnt = array_roundsize (base, newcnt << 1); \	332	newcnt = array_roundsize (type, newcnt << 1); \
201	} \	333	} \
202	while ((cnt) > newcnt); \	334	while ((cnt) > newcnt); \
203	\	335	\
204	base = realloc (base, sizeof (*base) * (newcnt)); \	336	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
205	init (base + cur, newcnt - cur); \	337	init (base + cur, newcnt - cur); \
206	cur = newcnt; \	338	cur = newcnt; \
207	}	339	}
		340
		341	#define array_slim(type,stem) \
		342	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		343	{ \
		344	stem ## max = array_roundsize (stem ## cnt >> 1); \
		345	base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\
		346	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\
		347	}
		348
		349	#define array_free(stem, idx) \
		350	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
208		351
209	/*****************************************************************************/	352	/*****************************************************************************/
210		353
211	static void	354	static void
212	anfds_init (ANFD *base, int count)	355	anfds_init (ANFD *base, int count)
…		…
219		362
220	++base;	363	++base;
221	}	364	}
222	}	365	}
223		366
224	static void	367	void
225	event (EV_P_ W w, int events)	368	ev_feed_event (EV_P_ void *w, int revents)
226	{	369	{
		370	W w_ = (W)w;
		371
227	if (w->pending)	372	if (w_->pending)
228	{	373	{
229	pendings [ABSPRI (w)][w->pending - 1].events |= events;	374	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
230	return;	375	return;
231	}	376	}
232		377
233	w->pending = ++pendingcnt [ABSPRI (w)];	378	w_->pending = ++pendingcnt [ABSPRI (w_)];
234	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	379	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2);
235	pendings [ABSPRI (w)][w->pending - 1].w = w;	380	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
236	pendings [ABSPRI (w)][w->pending - 1].events = events;	381	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
237	}	382	}
238		383
239	static void	384	static void
240	queue_events (EV_P_ W *events, int eventcnt, int type)	385	queue_events (EV_P_ W *events, int eventcnt, int type)
241	{	386	{
242	int i;	387	int i;
243		388
244	for (i = 0; i < eventcnt; ++i)	389	for (i = 0; i < eventcnt; ++i)
245	event (EV_A_ events [i], type);	390	ev_feed_event (EV_A_ events [i], type);
246	}	391	}
247		392
248	static void	393	inline void
249	fd_event (EV_P_ int fd, int events)	394	fd_event (EV_P_ int fd, int revents)
250	{	395	{
251	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
252	struct ev_io *w;	397	struct ev_io *w;
253		398
254	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	399	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
255	{	400	{
256	int ev = w->events & events;	401	int ev = w->events & revents;
257		402
258	if (ev)	403	if (ev)
259	event (EV_A_ (W)w, ev);	404	ev_feed_event (EV_A_ (W)w, ev);
260	}	405	}
		406	}
		407
		408	void
		409	ev_feed_fd_event (EV_P_ int fd, int revents)
		410	{
		411	fd_event (EV_A_ fd, revents);
261	}	412	}
262		413
263	/*****************************************************************************/	414	/*****************************************************************************/
264		415
265	static void	416	static void
…		…
276	int events = 0;	427	int events = 0;
277		428
278	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)	429	for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next)
279	events |= w->events;	430	events |= w->events;
280		431
		432	#if EV_SELECT_IS_WINSOCKET
		433	if (events)
		434	{
		435	unsigned long argp;
		436	anfd->handle = _get_osfhandle (fd);
		437	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		438	}
		439	#endif
		440
281	anfd->reify = 0;	441	anfd->reify = 0;
282		442
283	if (anfd->events != events)
284	{
285	method_modify (EV_A_ fd, anfd->events, events);	443	method_modify (EV_A_ fd, anfd->events, events);
286	anfd->events = events;	444	anfd->events = events;
287	}
288	}	445	}
289		446
290	fdchangecnt = 0;	447	fdchangecnt = 0;
291	}	448	}
292		449
293	static void	450	static void
294	fd_change (EV_P_ int fd)	451	fd_change (EV_P_ int fd)
295	{	452	{
296	if (anfds [fd].reify || fdchangecnt < 0)	453	if (anfds [fd].reify)
297	return;	454	return;
298		455
299	anfds [fd].reify = 1;	456	anfds [fd].reify = 1;
300		457
301	++fdchangecnt;	458	++fdchangecnt;
302	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	459	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
303	fdchanges [fdchangecnt - 1] = fd;	460	fdchanges [fdchangecnt - 1] = fd;
304	}	461	}
305		462
306	static void	463	static void
307	fd_kill (EV_P_ int fd)	464	fd_kill (EV_P_ int fd)
…		…
309	struct ev_io *w;	466	struct ev_io *w;
310		467
311	while ((w = (struct ev_io *)anfds [fd].head))	468	while ((w = (struct ev_io *)anfds [fd].head))
312	{	469	{
313	ev_io_stop (EV_A_ w);	470	ev_io_stop (EV_A_ w);
314	event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);	471	ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
315	}	472	}
		473	}
		474
		475	static int
		476	fd_valid (int fd)
		477	{
		478	#ifdef _WIN32
		479	return _get_osfhandle (fd) != -1;
		480	#else
		481	return fcntl (fd, F_GETFD) != -1;
		482	#endif
316	}	483	}
317		484
318	/* called on EBADF to verify fds */	485	/* called on EBADF to verify fds */
319	static void	486	static void
320	fd_ebadf (EV_P)	487	fd_ebadf (EV_P)
321	{	488	{
322	int fd;	489	int fd;
323		490
324	for (fd = 0; fd < anfdmax; ++fd)	491	for (fd = 0; fd < anfdmax; ++fd)
325	if (anfds [fd].events)	492	if (anfds [fd].events)
326	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	493	if (!fd_valid (fd) == -1 && errno == EBADF)
327	fd_kill (EV_A_ fd);	494	fd_kill (EV_A_ fd);
328	}	495	}
329		496
330	/* called on ENOMEM in select/poll to kill some fds and retry */	497	/* called on ENOMEM in select/poll to kill some fds and retry */
331	static void	498	static void
332	fd_enomem (EV_P)	499	fd_enomem (EV_P)
333	{	500	{
334	int fd = anfdmax;	501	int fd;
335		502
336	while (fd--)	503	for (fd = anfdmax; fd--; )
337	if (anfds [fd].events)	504	if (anfds [fd].events)
338	{	505	{
339	close (fd);
340	fd_kill (EV_A_ fd);	506	fd_kill (EV_A_ fd);
341	return;	507	return;
342	}	508	}
343	}	509	}
344		510
345	/* susually called after fork if method needs to re-arm all fds from scratch */	511	/* usually called after fork if method needs to re-arm all fds from scratch */
346	static void	512	static void
347	fd_rearm_all (EV_P)	513	fd_rearm_all (EV_P)
348	{	514	{
349	int fd;	515	int fd;
350		516
351	/* this should be highly optimised to not do anything but set a flag */	517	/* this should be highly optimised to not do anything but set a flag */
352	for (fd = 0; fd < anfdmax; ++fd)	518	for (fd = 0; fd < anfdmax; ++fd)
353	if (anfds [fd].events)	519	if (anfds [fd].events)
354	{	520	{
355	anfds [fd].events = 0;	521	anfds [fd].events = 0;
356	fd_change (fd);	522	fd_change (EV_A_ fd);
357	}	523	}
358	}	524	}
359		525
360	/*****************************************************************************/	526	/*****************************************************************************/
361		527
…		…
365	WT w = heap [k];	531	WT w = heap [k];
366		532
367	while (k && heap [k >> 1]->at > w->at)	533	while (k && heap [k >> 1]->at > w->at)
368	{	534	{
369	heap [k] = heap [k >> 1];	535	heap [k] = heap [k >> 1];
370	heap [k]->active = k + 1;	536	((W)heap [k])->active = k + 1;
371	k >>= 1;	537	k >>= 1;
372	}	538	}
373		539
374	heap [k] = w;	540	heap [k] = w;
375	heap [k]->active = k + 1;	541	((W)heap [k])->active = k + 1;
376		542
377	}	543	}
378		544
379	static void	545	static void
380	downheap (WT *heap, int N, int k)	546	downheap (WT *heap, int N, int k)
…		…
390		556
391	if (w->at <= heap [j]->at)	557	if (w->at <= heap [j]->at)
392	break;	558	break;
393		559
394	heap [k] = heap [j];	560	heap [k] = heap [j];
395	heap [k]->active = k + 1;	561	((W)heap [k])->active = k + 1;
396	k = j;	562	k = j;
397	}	563	}
398		564
399	heap [k] = w;	565	heap [k] = w;
400	heap [k]->active = k + 1;	566	((W)heap [k])->active = k + 1;
		567	}
		568
		569	inline void
		570	adjustheap (WT *heap, int N, int k)
		571	{
		572	upheap (heap, k);
		573	downheap (heap, N, k);
401	}	574	}
402		575
403	/*****************************************************************************/	576	/*****************************************************************************/
404		577
405	typedef struct	578	typedef struct
406	{	579	{
407	struct ev_watcher_list *head;	580	WL head;
408	sig_atomic_t volatile gotsig;	581	sig_atomic_t volatile gotsig;
409	} ANSIG;	582	} ANSIG;
410		583
411	static ANSIG *signals;	584	static ANSIG *signals;
412	static int signalmax;	585	static int signalmax;
413		586
414	static int sigpipe [2];	587	static int sigpipe [2];
415	static sig_atomic_t volatile gotsig;	588	static sig_atomic_t volatile gotsig;
		589	static struct ev_io sigev;
416		590
417	static void	591	static void
418	signals_init (ANSIG *base, int count)	592	signals_init (ANSIG *base, int count)
419	{	593	{
420	while (count--)	594	while (count--)
…		…
427	}	601	}
428		602
429	static void	603	static void
430	sighandler (int signum)	604	sighandler (int signum)
431	{	605	{
		606	#if _WIN32
		607	signal (signum, sighandler);
		608	#endif
		609
432	signals [signum - 1].gotsig = 1;	610	signals [signum - 1].gotsig = 1;
433		611
434	if (!gotsig)	612	if (!gotsig)
435	{	613	{
436	int old_errno = errno;	614	int old_errno = errno;
…		…
438	write (sigpipe [1], &signum, 1);	616	write (sigpipe [1], &signum, 1);
439	errno = old_errno;	617	errno = old_errno;
440	}	618	}
441	}	619	}
442		620
		621	void
		622	ev_feed_signal_event (EV_P_ int signum)
		623	{
		624	WL w;
		625
		626	#if EV_MULTIPLICITY
		627	assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr));
		628	#endif
		629
		630	--signum;
		631
		632	if (signum < 0 || signum >= signalmax)
		633	return;
		634
		635	signals [signum].gotsig = 0;
		636
		637	for (w = signals [signum].head; w; w = w->next)
		638	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		639	}
		640
443	static void	641	static void
444	sigcb (EV_P_ struct ev_io *iow, int revents)	642	sigcb (EV_P_ struct ev_io *iow, int revents)
445	{	643	{
446	struct ev_watcher_list *w;
447	int signum;	644	int signum;
448		645
449	read (sigpipe [0], &revents, 1);	646	read (sigpipe [0], &revents, 1);
450	gotsig = 0;	647	gotsig = 0;
451		648
452	for (signum = signalmax; signum--; )	649	for (signum = signalmax; signum--; )
453	if (signals [signum].gotsig)	650	if (signals [signum].gotsig)
454	{	651	ev_feed_signal_event (EV_A_ signum + 1);
455	signals [signum].gotsig = 0;	652	}
456		653
457	for (w = signals [signum].head; w; w = w->next)	654	inline void
458	event (EV_A_ (W)w, EV_SIGNAL);	655	fd_intern (int fd)
459	}	656	{
		657	#ifdef _WIN32
		658	int arg = 1;
		659	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		660	#else
		661	fcntl (fd, F_SETFD, FD_CLOEXEC);
		662	fcntl (fd, F_SETFL, O_NONBLOCK);
		663	#endif
460	}	664	}
461		665
462	static void	666	static void
463	siginit (EV_P)	667	siginit (EV_P)
464	{	668	{
465	#ifndef WIN32	669	fd_intern (sigpipe [0]);
466	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	670	fd_intern (sigpipe [1]);
467	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
468
469	/* rather than sort out wether we really need nb, set it */
470	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
471	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
472	#endif
473		671
474	ev_io_set (&sigev, sigpipe [0], EV_READ);	672	ev_io_set (&sigev, sigpipe [0], EV_READ);
475	ev_io_start (EV_A_ &sigev);	673	ev_io_start (EV_A_ &sigev);
476	ev_unref (EV_A); /* child watcher should not keep loop alive */	674	ev_unref (EV_A); /* child watcher should not keep loop alive */
477	}	675	}
478		676
479	/*****************************************************************************/	677	/*****************************************************************************/
480		678
		679	static struct ev_child *childs [PID_HASHSIZE];
		680
481	#ifndef WIN32	681	#ifndef _WIN32
		682
		683	static struct ev_signal childev;
482		684
483	#ifndef WCONTINUED	685	#ifndef WCONTINUED
484	# define WCONTINUED 0	686	# define WCONTINUED 0
485	#endif	687	#endif
486		688
…		…
490	struct ev_child *w;	692	struct ev_child *w;
491		693
492	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)	694	for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next)
493	if (w->pid == pid || !w->pid)	695	if (w->pid == pid || !w->pid)
494	{	696	{
495	w->priority = sw->priority; /* need to do it *now* */	697	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
496	w->rpid = pid;	698	w->rpid = pid;
497	w->rstatus = status;	699	w->rstatus = status;
498	event (EV_A_ (W)w, EV_CHILD);	700	ev_feed_event (EV_A_ (W)w, EV_CHILD);
499	}	701	}
500	}	702	}
501		703
502	static void	704	static void
503	childcb (EV_P_ struct ev_signal *sw, int revents)	705	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
505	int pid, status;	707	int pid, status;
506		708
507	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	709	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
508	{	710	{
509	/* make sure we are called again until all childs have been reaped */	711	/* make sure we are called again until all childs have been reaped */
510	event (EV_A_ (W)sw, EV_SIGNAL);	712	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
511		713
512	child_reap (EV_A_ sw, pid, pid, status);	714	child_reap (EV_A_ sw, pid, pid, status);
513	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	715	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
514	}	716	}
515	}	717	}
516		718
517	#endif	719	#endif
518		720
519	/*****************************************************************************/	721	/*****************************************************************************/
520		722
		723	#if EV_USE_PORT
		724	# include "ev_port.c"
		725	#endif
521	#if EV_USE_KQUEUE	726	#if EV_USE_KQUEUE
522	# include "ev_kqueue.c"	727	# include "ev_kqueue.c"
523	#endif	728	#endif
524	#if EV_USE_EPOLL	729	#if EV_USE_EPOLL
525	# include "ev_epoll.c"	730	# include "ev_epoll.c"
526	#endif	731	#endif
527	#if EV_USEV_POLL	732	#if EV_USE_POLL
528	# include "ev_poll.c"	733	# include "ev_poll.c"
529	#endif	734	#endif
530	#if EV_USE_SELECT	735	#if EV_USE_SELECT
531	# include "ev_select.c"	736	# include "ev_select.c"
532	#endif	737	#endif
…		…
545		750
546	/* return true if we are running with elevated privileges and should ignore env variables */	751	/* return true if we are running with elevated privileges and should ignore env variables */
547	static int	752	static int
548	enable_secure (void)	753	enable_secure (void)
549	{	754	{
550	#ifdef WIN32	755	#ifdef _WIN32
551	return 0;	756	return 0;
552	#else	757	#else
553	return getuid () != geteuid ()	758	return getuid () != geteuid ()
554	|| getgid () != getegid ();	759	|| getgid () != getegid ();
555	#endif	760	#endif
556	}	761	}
557		762
558	int	763	unsigned int
559	ev_method (EV_P)	764	ev_method (EV_P)
560	{	765	{
561	return method;	766	return method;
562	}	767	}
563		768
564	static void	769	static void
565	loop_init (EV_P_ int methods)	770	loop_init (EV_P_ unsigned int flags)
566	{	771	{
567	if (!method)	772	if (!method)
568	{	773	{
569	#if EV_USE_MONOTONIC	774	#if EV_USE_MONOTONIC
570	{	775	{
…		…
572	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	777	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
573	have_monotonic = 1;	778	have_monotonic = 1;
574	}	779	}
575	#endif	780	#endif
576		781
577	rt_now = ev_time ();	782	ev_rt_now = ev_time ();
578	mn_now = get_clock ();	783	mn_now = get_clock ();
579	now_floor = mn_now;	784	now_floor = mn_now;
580	rtmn_diff = rt_now - mn_now;	785	rtmn_diff = ev_rt_now - mn_now;
581		786
582	if (methods == EVMETHOD_AUTO)	787	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
583	if (!enable_secure () && getenv ("LIBEV_METHODS"))
584	methods = atoi (getenv ("LIBEV_METHODS"));	788	flags = atoi (getenv ("LIBEV_FLAGS"));
585	else	789
586	methods = EVMETHOD_ANY;	790	if (!(flags & 0x0000ffff))
		791	flags |= 0x0000ffff;
587		792
588	method = 0;	793	method = 0;
		794	#if EV_USE_PORT
		795	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		796	#endif
589	#if EV_USE_KQUEUE	797	#if EV_USE_KQUEUE
590	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	798	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
591	#endif	799	#endif
592	#if EV_USE_EPOLL	800	#if EV_USE_EPOLL
593	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	801	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
594	#endif	802	#endif
595	#if EV_USEV_POLL	803	#if EV_USE_POLL
596	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	804	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
597	#endif	805	#endif
598	#if EV_USE_SELECT	806	#if EV_USE_SELECT
599	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	807	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
600	#endif	808	#endif
		809
		810	ev_init (&sigev, sigcb);
		811	ev_set_priority (&sigev, EV_MAXPRI);
601	}	812	}
602	}	813	}
603		814
604	void	815	void
605	loop_destroy (EV_P)	816	loop_destroy (EV_P)
606	{	817	{
		818	int i;
		819
		820	#if EV_USE_PORT
		821	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		822	#endif
607	#if EV_USE_KQUEUE	823	#if EV_USE_KQUEUE
608	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);	824	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
609	#endif	825	#endif
610	#if EV_USE_EPOLL	826	#if EV_USE_EPOLL
611	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);	827	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
612	#endif	828	#endif
613	#if EV_USEV_POLL	829	#if EV_USE_POLL
614	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);	830	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
615	#endif	831	#endif
616	#if EV_USE_SELECT	832	#if EV_USE_SELECT
617	if (method == EVMETHOD_SELECT) select_destroy (EV_A);	833	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
618	#endif	834	#endif
619		835
		836	for (i = NUMPRI; i--; )
		837	array_free (pending, [i]);
		838
		839	/* have to use the microsoft-never-gets-it-right macro */
		840	array_free (fdchange, EMPTY0);
		841	array_free (timer, EMPTY0);
		842	#if EV_PERIODICS
		843	array_free (periodic, EMPTY0);
		844	#endif
		845	array_free (idle, EMPTY0);
		846	array_free (prepare, EMPTY0);
		847	array_free (check, EMPTY0);
		848
620	method = 0;	849	method = 0;
621	/*TODO*/
622	}	850	}
623		851
624	void	852	static void
625	loop_fork (EV_P)	853	loop_fork (EV_P)
626	{	854	{
627	/*TODO*/	855	#if EV_USE_PORT
		856	if (method == EVMETHOD_PORT ) port_fork (EV_A);
		857	#endif
		858	#if EV_USE_KQUEUE
		859	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		860	#endif
628	#if EV_USE_EPOLL	861	#if EV_USE_EPOLL
629	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);	862	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
630	#endif	863	#endif
631	#if EV_USE_KQUEUE	864
632	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);	865	if (ev_is_active (&sigev))
633	#endif	866	{
		867	/* default loop */
		868
		869	ev_ref (EV_A);
		870	ev_io_stop (EV_A_ &sigev);
		871	close (sigpipe [0]);
		872	close (sigpipe [1]);
		873
		874	while (pipe (sigpipe))
		875	syserr ("(libev) error creating pipe");
		876
		877	siginit (EV_A);
		878	}
		879
		880	postfork = 0;
634	}	881	}
635		882
636	#if EV_MULTIPLICITY	883	#if EV_MULTIPLICITY
637	struct ev_loop *	884	struct ev_loop *
638	ev_loop_new (int methods)	885	ev_loop_new (unsigned int flags)
639	{	886	{
640	struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));	887	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
641		888
		889	memset (loop, 0, sizeof (struct ev_loop));
		890
642	loop_init (EV_A_ methods);	891	loop_init (EV_A_ flags);
643		892
644	if (ev_methods (EV_A))	893	if (ev_method (EV_A))
645	return loop;	894	return loop;
646		895
647	return 0;	896	return 0;
648	}	897	}
649		898
650	void	899	void
651	ev_loop_destroy (EV_P)	900	ev_loop_destroy (EV_P)
652	{	901	{
653	loop_destroy (EV_A);	902	loop_destroy (EV_A);
654	free (loop);	903	ev_free (loop);
655	}	904	}
656		905
657	void	906	void
658	ev_loop_fork (EV_P)	907	ev_loop_fork (EV_P)
659	{	908	{
660	loop_fork (EV_A);	909	postfork = 1;
661	}	910	}
662		911
663	#endif	912	#endif
664		913
665	#if EV_MULTIPLICITY	914	#if EV_MULTIPLICITY
666	struct ev_loop default_loop_struct;
667	static struct ev_loop *default_loop;
668
669	struct ev_loop *	915	struct ev_loop *
		916	ev_default_loop_ (unsigned int flags)
670	#else	917	#else
671	static int default_loop;
672
673	int	918	int
		919	ev_default_loop (unsigned int flags)
674	#endif	920	#endif
675	ev_default_loop (int methods)
676	{	921	{
677	if (sigpipe [0] == sigpipe [1])	922	if (sigpipe [0] == sigpipe [1])
678	if (pipe (sigpipe))	923	if (pipe (sigpipe))
679	return 0;	924	return 0;
680		925
681	if (!default_loop)	926	if (!ev_default_loop_ptr)
682	{	927	{
683	#if EV_MULTIPLICITY	928	#if EV_MULTIPLICITY
684	struct ev_loop *loop = default_loop = &default_loop_struct;	929	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
685	#else	930	#else
686	default_loop = 1;	931	ev_default_loop_ptr = 1;
687	#endif	932	#endif
688		933
689	loop_init (EV_A_ methods);	934	loop_init (EV_A_ flags);
690		935
691	if (ev_method (EV_A))	936	if (ev_method (EV_A))
692	{	937	{
693	ev_watcher_init (&sigev, sigcb);
694	ev_set_priority (&sigev, EV_MAXPRI);
695	siginit (EV_A);	938	siginit (EV_A);
696		939
697	#ifndef WIN32	940	#ifndef _WIN32
698	ev_signal_init (&childev, childcb, SIGCHLD);	941	ev_signal_init (&childev, childcb, SIGCHLD);
699	ev_set_priority (&childev, EV_MAXPRI);	942	ev_set_priority (&childev, EV_MAXPRI);
700	ev_signal_start (EV_A_ &childev);	943	ev_signal_start (EV_A_ &childev);
701	ev_unref (EV_A); /* child watcher should not keep loop alive */	944	ev_unref (EV_A); /* child watcher should not keep loop alive */
702	#endif	945	#endif
703	}	946	}
704	else	947	else
705	default_loop = 0;	948	ev_default_loop_ptr = 0;
706	}	949	}
707		950
708	return default_loop;	951	return ev_default_loop_ptr;
709	}	952	}
710		953
711	void	954	void
712	ev_default_destroy (void)	955	ev_default_destroy (void)
713	{	956	{
714	#if EV_MULTIPLICITY	957	#if EV_MULTIPLICITY
715	struct ev_loop *loop = default_loop;	958	struct ev_loop *loop = ev_default_loop_ptr;
716	#endif	959	#endif
717		960
		961	#ifndef _WIN32
718	ev_ref (EV_A); /* child watcher */	962	ev_ref (EV_A); /* child watcher */
719	ev_signal_stop (EV_A_ &childev);	963	ev_signal_stop (EV_A_ &childev);
		964	#endif
720		965
721	ev_ref (EV_A); /* signal watcher */	966	ev_ref (EV_A); /* signal watcher */
722	ev_io_stop (EV_A_ &sigev);	967	ev_io_stop (EV_A_ &sigev);
723		968
724	close (sigpipe [0]); sigpipe [0] = 0;	969	close (sigpipe [0]); sigpipe [0] = 0;
…		…
726		971
727	loop_destroy (EV_A);	972	loop_destroy (EV_A);
728	}	973	}
729		974
730	void	975	void
731	ev_default_fork (EV_P)	976	ev_default_fork (void)
732	{	977	{
733	loop_fork (EV_A);	978	#if EV_MULTIPLICITY
		979	struct ev_loop *loop = ev_default_loop_ptr;
		980	#endif
734		981
735	ev_io_stop (EV_A_ &sigev);	982	if (method)
736	close (sigpipe [0]);	983	postfork = 1;
737	close (sigpipe [1]);
738	pipe (sigpipe);
739
740	ev_ref (EV_A); /* signal watcher */
741	siginit (EV_A);
742	}	984	}
743		985
744	/*****************************************************************************/	986	/*****************************************************************************/
		987
		988	static int
		989	any_pending (EV_P)
		990	{
		991	int pri;
		992
		993	for (pri = NUMPRI; pri--; )
		994	if (pendingcnt [pri])
		995	return 1;
		996
		997	return 0;
		998	}
745		999
746	static void	1000	static void
747	call_pending (EV_P)	1001	call_pending (EV_P)
748	{	1002	{
749	int pri;	1003	int pri;
…		…
754	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1008	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
755		1009
756	if (p->w)	1010	if (p->w)
757	{	1011	{
758	p->w->pending = 0;	1012	p->w->pending = 0;
759	p->w->cb (EV_A_ p->w, p->events);	1013	EV_CB_INVOKE (p->w, p->events);
760	}	1014	}
761	}	1015	}
762	}	1016	}
763		1017
764	static void	1018	static void
765	timers_reify (EV_P)	1019	timers_reify (EV_P)
766	{	1020	{
767	while (timercnt && timers [0]->at <= mn_now)	1021	while (timercnt && ((WT)timers [0])->at <= mn_now)
768	{	1022	{
769	struct ev_timer *w = timers [0];	1023	struct ev_timer *w = timers [0];
		1024
		1025	assert (("inactive timer on timer heap detected", ev_is_active (w)));
770		1026
771	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
772	if (w->repeat)	1028	if (w->repeat)
773	{	1029	{
774	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1030	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1031
775	w->at = mn_now + w->repeat;	1032	((WT)w)->at += w->repeat;
		1033	if (((WT)w)->at < mn_now)
		1034	((WT)w)->at = mn_now;
		1035
776	downheap ((WT *)timers, timercnt, 0);	1036	downheap ((WT *)timers, timercnt, 0);
777	}	1037	}
778	else	1038	else
779	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
780		1040
781	event (EV_A_ (W)w, EV_TIMEOUT);	1041	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
782	}	1042	}
783	}	1043	}
784		1044
		1045	#if EV_PERIODICS
785	static void	1046	static void
786	periodics_reify (EV_P)	1047	periodics_reify (EV_P)
787	{	1048	{
788	while (periodiccnt && periodics [0]->at <= rt_now)	1049	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
789	{	1050	{
790	struct ev_periodic *w = periodics [0];	1051	struct ev_periodic *w = periodics [0];
791		1052
		1053	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1054
792	/* first reschedule or stop timer */	1055	/* first reschedule or stop timer */
793	if (w->interval)	1056	if (w->reschedule_cb)
794	{	1057	{
		1058	((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1059	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1060	downheap ((WT *)periodics, periodiccnt, 0);
		1061	}
		1062	else if (w->interval)
		1063	{
795	w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval;	1064	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
796	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now));	1065	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
797	downheap ((WT *)periodics, periodiccnt, 0);	1066	downheap ((WT *)periodics, periodiccnt, 0);
798	}	1067	}
799	else	1068	else
800	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1069	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
801		1070
802	event (EV_A_ (W)w, EV_PERIODIC);	1071	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
803	}	1072	}
804	}	1073	}
805		1074
806	static void	1075	static void
807	periodics_reschedule (EV_P)	1076	periodics_reschedule (EV_P)
…		…
811	/* adjust periodics after time jump */	1080	/* adjust periodics after time jump */
812	for (i = 0; i < periodiccnt; ++i)	1081	for (i = 0; i < periodiccnt; ++i)
813	{	1082	{
814	struct ev_periodic *w = periodics [i];	1083	struct ev_periodic *w = periodics [i];
815		1084
		1085	if (w->reschedule_cb)
		1086	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
816	if (w->interval)	1087	else if (w->interval)
817	{
818	ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval;	1088	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
819
820	if (fabs (diff) >= 1e-4)
821	{
822	ev_periodic_stop (EV_A_ w);
823	ev_periodic_start (EV_A_ w);
824
825	i = 0; /* restart loop, inefficient, but time jumps should be rare */
826	}
827	}
828	}	1089	}
		1090
		1091	/* now rebuild the heap */
		1092	for (i = periodiccnt >> 1; i--; )
		1093	downheap ((WT *)periodics, periodiccnt, i);
829	}	1094	}
		1095	#endif
830		1096
831	inline int	1097	inline int
832	time_update_monotonic (EV_P)	1098	time_update_monotonic (EV_P)
833	{	1099	{
834	mn_now = get_clock ();	1100	mn_now = get_clock ();
835		1101
836	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1102	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
837	{	1103	{
838	rt_now = rtmn_diff + mn_now;	1104	ev_rt_now = rtmn_diff + mn_now;
839	return 0;	1105	return 0;
840	}	1106	}
841	else	1107	else
842	{	1108	{
843	now_floor = mn_now;	1109	now_floor = mn_now;
844	rt_now = ev_time ();	1110	ev_rt_now = ev_time ();
845	return 1;	1111	return 1;
846	}	1112	}
847	}	1113	}
848		1114
849	static void	1115	static void
…		…
858	{	1124	{
859	ev_tstamp odiff = rtmn_diff;	1125	ev_tstamp odiff = rtmn_diff;
860		1126
861	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1127	for (i = 4; --i; ) /* loop a few times, before making important decisions */
862	{	1128	{
863	rtmn_diff = rt_now - mn_now;	1129	rtmn_diff = ev_rt_now - mn_now;
864		1130
865	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1131	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
866	return; /* all is well */	1132	return; /* all is well */
867		1133
868	rt_now = ev_time ();	1134	ev_rt_now = ev_time ();
869	mn_now = get_clock ();	1135	mn_now = get_clock ();
870	now_floor = mn_now;	1136	now_floor = mn_now;
871	}	1137	}
872		1138
		1139	# if EV_PERIODICS
873	periodics_reschedule (EV_A);	1140	periodics_reschedule (EV_A);
		1141	# endif
874	/* no timer adjustment, as the monotonic clock doesn't jump */	1142	/* no timer adjustment, as the monotonic clock doesn't jump */
875	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1143	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
876	}	1144	}
877	}	1145	}
878	else	1146	else
879	#endif	1147	#endif
880	{	1148	{
881	rt_now = ev_time ();	1149	ev_rt_now = ev_time ();
882		1150
883	if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1151	if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
884	{	1152	{
		1153	#if EV_PERIODICS
885	periodics_reschedule (EV_A);	1154	periodics_reschedule (EV_A);
		1155	#endif
886		1156
887	/* adjust timers. this is easy, as the offset is the same for all */	1157	/* adjust timers. this is easy, as the offset is the same for all */
888	for (i = 0; i < timercnt; ++i)	1158	for (i = 0; i < timercnt; ++i)
889	timers [i]->at += rt_now - mn_now;	1159	((WT)timers [i])->at += ev_rt_now - mn_now;
890	}	1160	}
891		1161
892	mn_now = rt_now;	1162	mn_now = ev_rt_now;
893	}	1163	}
894	}	1164	}
895		1165
896	void	1166	void
897	ev_ref (EV_P)	1167	ev_ref (EV_P)
…		…
911	ev_loop (EV_P_ int flags)	1181	ev_loop (EV_P_ int flags)
912	{	1182	{
913	double block;	1183	double block;
914	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1184	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
915		1185
916	do	1186	while (activecnt)
917	{	1187	{
918	/* queue check watchers (and execute them) */	1188	/* queue check watchers (and execute them) */
919	if (expect_false (preparecnt))	1189	if (expect_false (preparecnt))
920	{	1190	{
921	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1191	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
922	call_pending (EV_A);	1192	call_pending (EV_A);
923	}	1193	}
924		1194
		1195	/* we might have forked, so reify kernel state if necessary */
		1196	if (expect_false (postfork))
		1197	loop_fork (EV_A);
		1198
925	/* update fd-related kernel structures */	1199	/* update fd-related kernel structures */
926	fd_reify (EV_A);	1200	fd_reify (EV_A);
927		1201
928	/* calculate blocking time */	1202	/* calculate blocking time */
929		1203
930	/* we only need this for !monotonic clockor timers, but as we basically	1204	/* we only need this for !monotonic clock or timers, but as we basically
931	always have timers, we just calculate it always */	1205	always have timers, we just calculate it always */
932	#if EV_USE_MONOTONIC	1206	#if EV_USE_MONOTONIC
933	if (expect_true (have_monotonic))	1207	if (expect_true (have_monotonic))
934	time_update_monotonic (EV_A);	1208	time_update_monotonic (EV_A);
935	else	1209	else
936	#endif	1210	#endif
937	{	1211	{
938	rt_now = ev_time ();	1212	ev_rt_now = ev_time ();
939	mn_now = rt_now;	1213	mn_now = ev_rt_now;
940	}	1214	}
941		1215
942	if (flags & EVLOOP_NONBLOCK || idlecnt)	1216	if (flags & EVLOOP_NONBLOCK || idlecnt)
943	block = 0.;	1217	block = 0.;
944	else	1218	else
945	{	1219	{
946	block = MAX_BLOCKTIME;	1220	block = MAX_BLOCKTIME;
947		1221
948	if (timercnt)	1222	if (timercnt)
949	{	1223	{
950	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1224	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
951	if (block > to) block = to;	1225	if (block > to) block = to;
952	}	1226	}
953		1227
		1228	#if EV_PERIODICS
954	if (periodiccnt)	1229	if (periodiccnt)
955	{	1230	{
956	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1231	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
957	if (block > to) block = to;	1232	if (block > to) block = to;
958	}	1233	}
		1234	#endif
959		1235
960	if (block < 0.) block = 0.;	1236	if (block < 0.) block = 0.;
961	}	1237	}
962		1238
963	method_poll (EV_A_ block);	1239	method_poll (EV_A_ block);
964		1240
965	/* update rt_now, do magic */	1241	/* update ev_rt_now, do magic */
966	time_update (EV_A);	1242	time_update (EV_A);
967		1243
968	/* queue pending timers and reschedule them */	1244	/* queue pending timers and reschedule them */
969	timers_reify (EV_A); /* relative timers called last */	1245	timers_reify (EV_A); /* relative timers called last */
		1246	#if EV_PERIODICS
970	periodics_reify (EV_A); /* absolute timers called first */	1247	periodics_reify (EV_A); /* absolute timers called first */
		1248	#endif
971		1249
972	/* queue idle watchers unless io or timers are pending */	1250	/* queue idle watchers unless io or timers are pending */
973	if (!pendingcnt)	1251	if (idlecnt && !any_pending (EV_A))
974	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1252	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
975		1253
976	/* queue check watchers, to be executed first */	1254	/* queue check watchers, to be executed first */
977	if (checkcnt)	1255	if (checkcnt)
978	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1256	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
979		1257
980	call_pending (EV_A);	1258	call_pending (EV_A);
		1259
		1260	if (loop_done)
		1261	break;
981	}	1262	}
982	while (activecnt && !loop_done);
983		1263
984	if (loop_done != 2)	1264	if (loop_done != 2)
985	loop_done = 0;	1265	loop_done = 0;
986	}	1266	}
987		1267
…		…
1053	return;	1333	return;
1054		1334
1055	assert (("ev_io_start called with negative fd", fd >= 0));	1335	assert (("ev_io_start called with negative fd", fd >= 0));
1056		1336
1057	ev_start (EV_A_ (W)w, 1);	1337	ev_start (EV_A_ (W)w, 1);
1058	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1338	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
1059	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1339	wlist_add ((WL *)&anfds[fd].head, (WL)w);
1060		1340
1061	fd_change (EV_A_ fd);	1341	fd_change (EV_A_ fd);
1062	}	1342	}
1063		1343
…		…
1066	{	1346	{
1067	ev_clear_pending (EV_A_ (W)w);	1347	ev_clear_pending (EV_A_ (W)w);
1068	if (!ev_is_active (w))	1348	if (!ev_is_active (w))
1069	return;	1349	return;
1070		1350
		1351	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1352
1071	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1353	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
1072	ev_stop (EV_A_ (W)w);	1354	ev_stop (EV_A_ (W)w);
1073		1355
1074	fd_change (EV_A_ w->fd);	1356	fd_change (EV_A_ w->fd);
1075	}	1357	}
…		…
1078	ev_timer_start (EV_P_ struct ev_timer *w)	1360	ev_timer_start (EV_P_ struct ev_timer *w)
1079	{	1361	{
1080	if (ev_is_active (w))	1362	if (ev_is_active (w))
1081	return;	1363	return;
1082		1364
1083	w->at += mn_now;	1365	((WT)w)->at += mn_now;
1084		1366
1085	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1367	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
1086		1368
1087	ev_start (EV_A_ (W)w, ++timercnt);	1369	ev_start (EV_A_ (W)w, ++timercnt);
1088	array_needsize (timers, timermax, timercnt, );	1370	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1089	timers [timercnt - 1] = w;	1371	timers [timercnt - 1] = w;
1090	upheap ((WT *)timers, timercnt - 1);	1372	upheap ((WT *)timers, timercnt - 1);
		1373
		1374	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1091	}	1375	}
1092		1376
1093	void	1377	void
1094	ev_timer_stop (EV_P_ struct ev_timer *w)	1378	ev_timer_stop (EV_P_ struct ev_timer *w)
1095	{	1379	{
1096	ev_clear_pending (EV_A_ (W)w);	1380	ev_clear_pending (EV_A_ (W)w);
1097	if (!ev_is_active (w))	1381	if (!ev_is_active (w))
1098	return;	1382	return;
1099		1383
		1384	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1385
1100	if (w->active < timercnt--)	1386	if (((W)w)->active < timercnt--)
1101	{	1387	{
1102	timers [w->active - 1] = timers [timercnt];	1388	timers [((W)w)->active - 1] = timers [timercnt];
1103	downheap ((WT *)timers, timercnt, w->active - 1);	1389	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1104	}	1390	}
1105		1391
1106	w->at = w->repeat;	1392	((WT)w)->at -= mn_now;
1107		1393
1108	ev_stop (EV_A_ (W)w);	1394	ev_stop (EV_A_ (W)w);
1109	}	1395	}
1110		1396
1111	void	1397	void
…		…
1113	{	1399	{
1114	if (ev_is_active (w))	1400	if (ev_is_active (w))
1115	{	1401	{
1116	if (w->repeat)	1402	if (w->repeat)
1117	{	1403	{
1118	w->at = mn_now + w->repeat;	1404	((WT)w)->at = mn_now + w->repeat;
1119	downheap ((WT *)timers, timercnt, w->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1120	}	1406	}
1121	else	1407	else
1122	ev_timer_stop (EV_A_ w);	1408	ev_timer_stop (EV_A_ w);
1123	}	1409	}
1124	else if (w->repeat)	1410	else if (w->repeat)
		1411	{
		1412	w->at = w->repeat;
1125	ev_timer_start (EV_A_ w);	1413	ev_timer_start (EV_A_ w);
		1414	}
1126	}	1415	}
1127		1416
		1417	#if EV_PERIODICS
1128	void	1418	void
1129	ev_periodic_start (EV_P_ struct ev_periodic *w)	1419	ev_periodic_start (EV_P_ struct ev_periodic *w)
1130	{	1420	{
1131	if (ev_is_active (w))	1421	if (ev_is_active (w))
1132	return;	1422	return;
1133		1423
		1424	if (w->reschedule_cb)
		1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1426	else if (w->interval)
		1427	{
1134	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1428	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1135
1136	/* this formula differs from the one in periodic_reify because we do not always round up */	1429	/* this formula differs from the one in periodic_reify because we do not always round up */
1137	if (w->interval)
1138	w->at += ceil ((rt_now - w->at) / w->interval) * w->interval;	1430	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1431	}
1139		1432
1140	ev_start (EV_A_ (W)w, ++periodiccnt);	1433	ev_start (EV_A_ (W)w, ++periodiccnt);
1141	array_needsize (periodics, periodicmax, periodiccnt, );	1434	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1142	periodics [periodiccnt - 1] = w;	1435	periodics [periodiccnt - 1] = w;
1143	upheap ((WT *)periodics, periodiccnt - 1);	1436	upheap ((WT *)periodics, periodiccnt - 1);
		1437
		1438	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1144	}	1439	}
1145		1440
1146	void	1441	void
1147	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1442	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1148	{	1443	{
1149	ev_clear_pending (EV_A_ (W)w);	1444	ev_clear_pending (EV_A_ (W)w);
1150	if (!ev_is_active (w))	1445	if (!ev_is_active (w))
1151	return;	1446	return;
1152		1447
		1448	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1449
1153	if (w->active < periodiccnt--)	1450	if (((W)w)->active < periodiccnt--)
1154	{	1451	{
1155	periodics [w->active - 1] = periodics [periodiccnt];	1452	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1156	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1453	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1157	}	1454	}
1158		1455
1159	ev_stop (EV_A_ (W)w);	1456	ev_stop (EV_A_ (W)w);
1160	}	1457	}
1161		1458
1162	void	1459	void
		1460	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1461	{
		1462	/* TODO: use adjustheap and recalculation */
		1463	ev_periodic_stop (EV_A_ w);
		1464	ev_periodic_start (EV_A_ w);
		1465	}
		1466	#endif
		1467
		1468	void
1163	ev_idle_start (EV_P_ struct ev_idle *w)	1469	ev_idle_start (EV_P_ struct ev_idle *w)
1164	{	1470	{
1165	if (ev_is_active (w))	1471	if (ev_is_active (w))
1166	return;	1472	return;
1167		1473
1168	ev_start (EV_A_ (W)w, ++idlecnt);	1474	ev_start (EV_A_ (W)w, ++idlecnt);
1169	array_needsize (idles, idlemax, idlecnt, );	1475	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
1170	idles [idlecnt - 1] = w;	1476	idles [idlecnt - 1] = w;
1171	}	1477	}
1172		1478
1173	void	1479	void
1174	ev_idle_stop (EV_P_ struct ev_idle *w)	1480	ev_idle_stop (EV_P_ struct ev_idle *w)
1175	{	1481	{
1176	ev_clear_pending (EV_A_ (W)w);	1482	ev_clear_pending (EV_A_ (W)w);
		1483	if (!ev_is_active (w))
		1484	return;
		1485
		1486	idles [((W)w)->active - 1] = idles [--idlecnt];
		1487	ev_stop (EV_A_ (W)w);
		1488	}
		1489
		1490	void
		1491	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1492	{
1177	if (ev_is_active (w))	1493	if (ev_is_active (w))
1178	return;	1494	return;
1179		1495
1180	idles [w->active - 1] = idles [--idlecnt];	1496	ev_start (EV_A_ (W)w, ++preparecnt);
		1497	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2);
		1498	prepares [preparecnt - 1] = w;
		1499	}
		1500
		1501	void
		1502	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1503	{
		1504	ev_clear_pending (EV_A_ (W)w);
		1505	if (!ev_is_active (w))
		1506	return;
		1507
		1508	prepares [((W)w)->active - 1] = prepares [--preparecnt];
1181	ev_stop (EV_A_ (W)w);	1509	ev_stop (EV_A_ (W)w);
1182	}	1510	}
1183		1511
1184	void	1512	void
1185	ev_prepare_start (EV_P_ struct ev_prepare *w)	1513	ev_check_start (EV_P_ struct ev_check *w)
1186	{	1514	{
1187	if (ev_is_active (w))	1515	if (ev_is_active (w))
1188	return;	1516	return;
1189		1517
1190	ev_start (EV_A_ (W)w, ++preparecnt);	1518	ev_start (EV_A_ (W)w, ++checkcnt);
1191	array_needsize (prepares, preparemax, preparecnt, );	1519	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
1192	prepares [preparecnt - 1] = w;	1520	checks [checkcnt - 1] = w;
1193	}	1521	}
1194		1522
1195	void	1523	void
1196	ev_prepare_stop (EV_P_ struct ev_prepare *w)	1524	ev_check_stop (EV_P_ struct ev_check *w)
1197	{	1525	{
1198	ev_clear_pending (EV_A_ (W)w);	1526	ev_clear_pending (EV_A_ (W)w);
1199	if (ev_is_active (w))	1527	if (!ev_is_active (w))
1200	return;	1528	return;
1201		1529
1202	prepares [w->active - 1] = prepares [--preparecnt];
1203	ev_stop (EV_A_ (W)w);
1204	}
1205
1206	void
1207	ev_check_start (EV_P_ struct ev_check *w)
1208	{
1209	if (ev_is_active (w))
1210	return;
1211
1212	ev_start (EV_A_ (W)w, ++checkcnt);
1213	array_needsize (checks, checkmax, checkcnt, );
1214	checks [checkcnt - 1] = w;
1215	}
1216
1217	void
1218	ev_check_stop (EV_P_ struct ev_check *w)
1219	{
1220	ev_clear_pending (EV_A_ (W)w);
1221	if (ev_is_active (w))
1222	return;
1223
1224	checks [w->active - 1] = checks [--checkcnt];	1530	checks [((W)w)->active - 1] = checks [--checkcnt];
1225	ev_stop (EV_A_ (W)w);	1531	ev_stop (EV_A_ (W)w);
1226	}	1532	}
1227		1533
1228	#ifndef SA_RESTART	1534	#ifndef SA_RESTART
1229	# define SA_RESTART 0	1535	# define SA_RESTART 0
…		…
1231		1537
1232	void	1538	void
1233	ev_signal_start (EV_P_ struct ev_signal *w)	1539	ev_signal_start (EV_P_ struct ev_signal *w)
1234	{	1540	{
1235	#if EV_MULTIPLICITY	1541	#if EV_MULTIPLICITY
1236	assert (("signal watchers are only supported in the default loop", loop == default_loop));	1542	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1237	#endif	1543	#endif
1238	if (ev_is_active (w))	1544	if (ev_is_active (w))
1239	return;	1545	return;
1240		1546
1241	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1547	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1242		1548
1243	ev_start (EV_A_ (W)w, 1);	1549	ev_start (EV_A_ (W)w, 1);
1244	array_needsize (signals, signalmax, w->signum, signals_init);	1550	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1245	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1551	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1246		1552
1247	if (!w->next)	1553	if (!((WL)w)->next)
1248	{	1554	{
		1555	#if _WIN32
		1556	signal (w->signum, sighandler);
		1557	#else
1249	struct sigaction sa;	1558	struct sigaction sa;
1250	sa.sa_handler = sighandler;	1559	sa.sa_handler = sighandler;
1251	sigfillset (&sa.sa_mask);	1560	sigfillset (&sa.sa_mask);
1252	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1561	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1253	sigaction (w->signum, &sa, 0);	1562	sigaction (w->signum, &sa, 0);
		1563	#endif
1254	}	1564	}
1255	}	1565	}
1256		1566
1257	void	1567	void
1258	ev_signal_stop (EV_P_ struct ev_signal *w)	1568	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1270		1580
1271	void	1581	void
1272	ev_child_start (EV_P_ struct ev_child *w)	1582	ev_child_start (EV_P_ struct ev_child *w)
1273	{	1583	{
1274	#if EV_MULTIPLICITY	1584	#if EV_MULTIPLICITY
1275	assert (("child watchers are only supported in the default loop", loop == default_loop));	1585	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
1276	#endif	1586	#endif
1277	if (ev_is_active (w))	1587	if (ev_is_active (w))
1278	return;	1588	return;
1279		1589
1280	ev_start (EV_A_ (W)w, 1);	1590	ev_start (EV_A_ (W)w, 1);
…		…
1283		1593
1284	void	1594	void
1285	ev_child_stop (EV_P_ struct ev_child *w)	1595	ev_child_stop (EV_P_ struct ev_child *w)
1286	{	1596	{
1287	ev_clear_pending (EV_A_ (W)w);	1597	ev_clear_pending (EV_A_ (W)w);
1288	if (ev_is_active (w))	1598	if (!ev_is_active (w))
1289	return;	1599	return;
1290		1600
1291	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1601	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1292	ev_stop (EV_A_ (W)w);	1602	ev_stop (EV_A_ (W)w);
1293	}	1603	}
…		…
1308	void (*cb)(int revents, void *arg) = once->cb;	1618	void (*cb)(int revents, void *arg) = once->cb;
1309	void *arg = once->arg;	1619	void *arg = once->arg;
1310		1620
1311	ev_io_stop (EV_A_ &once->io);	1621	ev_io_stop (EV_A_ &once->io);
1312	ev_timer_stop (EV_A_ &once->to);	1622	ev_timer_stop (EV_A_ &once->to);
1313	free (once);	1623	ev_free (once);
1314		1624
1315	cb (revents, arg);	1625	cb (revents, arg);
1316	}	1626	}
1317		1627
1318	static void	1628	static void
…		…
1328	}	1638	}
1329		1639
1330	void	1640	void
1331	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)	1641	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg)
1332	{	1642	{
1333	struct ev_once *once = malloc (sizeof (struct ev_once));	1643	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1334		1644
1335	if (!once)	1645	if (!once)
1336	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1646	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1337	else	1647	else
1338	{	1648	{
1339	once->cb = cb;	1649	once->cb = cb;
1340	once->arg = arg;	1650	once->arg = arg;
1341		1651
1342	ev_watcher_init (&once->io, once_cb_io);	1652	ev_init (&once->io, once_cb_io);
1343	if (fd >= 0)	1653	if (fd >= 0)
1344	{	1654	{
1345	ev_io_set (&once->io, fd, events);	1655	ev_io_set (&once->io, fd, events);
1346	ev_io_start (EV_A_ &once->io);	1656	ev_io_start (EV_A_ &once->io);
1347	}	1657	}
1348		1658
1349	ev_watcher_init (&once->to, once_cb_to);	1659	ev_init (&once->to, once_cb_to);
1350	if (timeout >= 0.)	1660	if (timeout >= 0.)
1351	{	1661	{
1352	ev_timer_set (&once->to, timeout, 0.);	1662	ev_timer_set (&once->to, timeout, 0.);
1353	ev_timer_start (EV_A_ &once->to);	1663	ev_timer_start (EV_A_ &once->to);
1354	}	1664	}
1355	}	1665	}
1356	}	1666	}
1357		1667
		1668	#ifdef __cplusplus
		1669	}
		1670	#endif
		1671

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