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Comparing libev/ev.c (file contents):
Revision 1.54 by root, Sun Nov 4 00:24:16 2007 UTC vs.
Revision 1.120 by root, Fri Nov 16 01:54:25 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"
		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
…		…
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
89	#endif	147	#endif
90		148
		149	#if EV_SELECT_IS_WINSOCKET
		150	# include <winsock.h>
		151	#endif
		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 59.743 /* 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 (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */
97		159
		160	#ifdef EV_H
		161	# include EV_H
		162	#else
98	#include "ev.h"	163	# include "ev.h"
		164	#endif
99		165
100	#if __GNUC__ >= 3	166	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	167	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	168	# define inline inline
103	#else	169	#else
…		…
109	#define expect_true(expr) expect ((expr) != 0, 1)	175	#define expect_true(expr) expect ((expr) != 0, 1)
110		176
111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	177	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	178	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
113		179
		180	#define EMPTY0 /* required for microsofts broken pseudo-c compiler */
		181	#define EMPTY2(a,b) /* used to suppress some warnings */
		182
114	typedef struct ev_watcher *W;	183	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	184	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	185	typedef struct ev_watcher_time *WT;
117		186
118	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */	187	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
119		188
		189	#ifdef _WIN32
		190	# include "ev_win32.c"
		191	#endif
		192
120	/*****************************************************************************/	193	/*****************************************************************************/
121		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
122	typedef struct	243	typedef struct
123	{	244	{
124	struct ev_watcher_list *head;	245	WL head;
125	unsigned char events;	246	unsigned char events;
126	unsigned char reify;	247	unsigned char reify;
		248	#if EV_SELECT_IS_WINSOCKET
		249	SOCKET handle;
		250	#endif
127	} ANFD;	251	} ANFD;
128		252
129	typedef struct	253	typedef struct
130	{	254	{
131	W w;	255	W w;
132	int events;	256	int events;
133	} ANPENDING;	257	} ANPENDING;
134		258
135	#ifdef EV_MULTIPLICITY	259	#if EV_MULTIPLICITY
136		260
137	struct ev_loop	261	struct ev_loop
138	{	262	{
		263	ev_tstamp ev_rt_now;
		264	#define ev_rt_now ((loop)->ev_rt_now)
139	# define VAR(name,decl) decl;	265	#define VAR(name,decl) decl;
140	# include "ev_vars.h"	266	#include "ev_vars.h"
141	};
142	# undef VAR	267	#undef VAR
		268	};
143	# 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;
144		273
145	#else	274	#else
146		275
		276	ev_tstamp ev_rt_now;
147	# define VAR(name,decl) static decl;	277	#define VAR(name,decl) static decl;
148	# include "ev_vars.h"	278	#include "ev_vars.h"
149	# undef VAR	279	#undef VAR
		280
		281	static int ev_default_loop_ptr;
150		282
151	#endif	283	#endif
152		284
153	/*****************************************************************************/	285	/*****************************************************************************/
154		286
155	inline ev_tstamp	287	ev_tstamp
156	ev_time (void)	288	ev_time (void)
157	{	289	{
158	#if EV_USE_REALTIME	290	#if EV_USE_REALTIME
159	struct timespec ts;	291	struct timespec ts;
160	clock_gettime (CLOCK_REALTIME, &ts);	292	clock_gettime (CLOCK_REALTIME, &ts);
…		…
179	#endif	311	#endif
180		312
181	return ev_time ();	313	return ev_time ();
182	}	314	}
183		315
		316	#if EV_MULTIPLICITY
184	ev_tstamp	317	ev_tstamp
185	ev_now (EV_P)	318	ev_now (EV_P)
186	{	319	{
187	return rt_now;	320	return ev_rt_now;
188	}	321	}
		322	#endif
189		323
190	#define array_roundsize(base,n) ((n) | 4 & ~3)	324	#define array_roundsize(type,n) (((n) | 4) & ~3)
191		325
192	#define array_needsize(base,cur,cnt,init) \	326	#define array_needsize(type,base,cur,cnt,init) \
193	if (expect_false ((cnt) > cur)) \	327	if (expect_false ((cnt) > cur)) \
194	{ \	328	{ \
195	int newcnt = cur; \	329	int newcnt = cur; \
196	do \	330	do \
197	{ \	331	{ \
198	newcnt = array_roundsize (base, newcnt << 1); \	332	newcnt = array_roundsize (type, newcnt << 1); \
199	} \	333	} \
200	while ((cnt) > newcnt); \	334	while ((cnt) > newcnt); \
201	\	335	\
202	base = realloc (base, sizeof (*base) * (newcnt)); \	336	base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\
203	init (base + cur, newcnt - cur); \	337	init (base + cur, newcnt - cur); \
204	cur = newcnt; \	338	cur = newcnt; \
205	}	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;
206		351
207	/*****************************************************************************/	352	/*****************************************************************************/
208		353
209	static void	354	static void
210	anfds_init (ANFD *base, int count)	355	anfds_init (ANFD *base, int count)
…		…
217		362
218	++base;	363	++base;
219	}	364	}
220	}	365	}
221		366
222	static void	367	void
223	event (EV_P_ W w, int events)	368	ev_feed_event (EV_P_ void *w, int revents)
224	{	369	{
		370	W w_ = (W)w;
		371
225	if (w->pending)	372	if (w_->pending)
226	{	373	{
227	pendings [ABSPRI (w)][w->pending - 1].events |= events;	374	pendings [ABSPRI (w_)][w_->pending - 1].events |= revents;
228	return;	375	return;
229	}	376	}
230		377
231	w->pending = ++pendingcnt [ABSPRI (w)];	378	w_->pending = ++pendingcnt [ABSPRI (w_)];
232	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);
233	pendings [ABSPRI (w)][w->pending - 1].w = w;	380	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
234	pendings [ABSPRI (w)][w->pending - 1].events = events;	381	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
235	}	382	}
236		383
237	static void	384	static void
238	queue_events (EV_P_ W *events, int eventcnt, int type)	385	queue_events (EV_P_ W *events, int eventcnt, int type)
239	{	386	{
240	int i;	387	int i;
241		388
242	for (i = 0; i < eventcnt; ++i)	389	for (i = 0; i < eventcnt; ++i)
243	event (EV_A_ events [i], type);	390	ev_feed_event (EV_A_ events [i], type);
244	}	391	}
245		392
246	static void	393	inline void
247	fd_event (EV_P_ int fd, int events)	394	fd_event (EV_P_ int fd, int revents)
248	{	395	{
249	ANFD *anfd = anfds + fd;	396	ANFD *anfd = anfds + fd;
250	struct ev_io *w;	397	struct ev_io *w;
251		398
252	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)
253	{	400	{
254	int ev = w->events & events;	401	int ev = w->events & revents;
255		402
256	if (ev)	403	if (ev)
257	event (EV_A_ (W)w, ev);	404	ev_feed_event (EV_A_ (W)w, ev);
258	}	405	}
		406	}
		407
		408	void
		409	ev_feed_fd_event (EV_P_ int fd, int revents)
		410	{
		411	fd_event (EV_A_ fd, revents);
259	}	412	}
260		413
261	/*****************************************************************************/	414	/*****************************************************************************/
262		415
263	static void	416	static void
…		…
274	int events = 0;	427	int events = 0;
275		428
276	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)
277	events |= w->events;	430	events |= w->events;
278		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
279	anfd->reify = 0;	441	anfd->reify = 0;
280		442
281	if (anfd->events != events)
282	{
283	method_modify (EV_A_ fd, anfd->events, events);	443	method_modify (EV_A_ fd, anfd->events, events);
284	anfd->events = events;	444	anfd->events = events;
285	}
286	}	445	}
287		446
288	fdchangecnt = 0;	447	fdchangecnt = 0;
289	}	448	}
290		449
291	static void	450	static void
292	fd_change (EV_P_ int fd)	451	fd_change (EV_P_ int fd)
293	{	452	{
294	if (anfds [fd].reify || fdchangecnt < 0)	453	if (anfds [fd].reify)
295	return;	454	return;
296		455
297	anfds [fd].reify = 1;	456	anfds [fd].reify = 1;
298		457
299	++fdchangecnt;	458	++fdchangecnt;
300	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	459	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2);
301	fdchanges [fdchangecnt - 1] = fd;	460	fdchanges [fdchangecnt - 1] = fd;
302	}	461	}
303		462
304	static void	463	static void
305	fd_kill (EV_P_ int fd)	464	fd_kill (EV_P_ int fd)
…		…
307	struct ev_io *w;	466	struct ev_io *w;
308		467
309	while ((w = (struct ev_io *)anfds [fd].head))	468	while ((w = (struct ev_io *)anfds [fd].head))
310	{	469	{
311	ev_io_stop (EV_A_ w);	470	ev_io_stop (EV_A_ w);
312	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);
313	}	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
314	}	483	}
315		484
316	/* called on EBADF to verify fds */	485	/* called on EBADF to verify fds */
317	static void	486	static void
318	fd_ebadf (EV_P)	487	fd_ebadf (EV_P)
319	{	488	{
320	int fd;	489	int fd;
321		490
322	for (fd = 0; fd < anfdmax; ++fd)	491	for (fd = 0; fd < anfdmax; ++fd)
323	if (anfds [fd].events)	492	if (anfds [fd].events)
324	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	493	if (!fd_valid (fd) == -1 && errno == EBADF)
325	fd_kill (EV_A_ fd);	494	fd_kill (EV_A_ fd);
326	}	495	}
327		496
328	/* 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 */
329	static void	498	static void
330	fd_enomem (EV_P)	499	fd_enomem (EV_P)
331	{	500	{
332	int fd = anfdmax;	501	int fd;
333		502
334	while (fd--)	503	for (fd = anfdmax; fd--; )
335	if (anfds [fd].events)	504	if (anfds [fd].events)
336	{	505	{
337	close (fd);
338	fd_kill (EV_A_ fd);	506	fd_kill (EV_A_ fd);
339	return;	507	return;
340	}	508	}
341	}	509	}
342		510
		511	/* usually called after fork if method needs to re-arm all fds from scratch */
		512	static void
		513	fd_rearm_all (EV_P)
		514	{
		515	int fd;
		516
		517	/* this should be highly optimised to not do anything but set a flag */
		518	for (fd = 0; fd < anfdmax; ++fd)
		519	if (anfds [fd].events)
		520	{
		521	anfds [fd].events = 0;
		522	fd_change (EV_A_ fd);
		523	}
		524	}
		525
343	/*****************************************************************************/	526	/*****************************************************************************/
344		527
345	static void	528	static void
346	upheap (WT *heap, int k)	529	upheap (WT *heap, int k)
347	{	530	{
348	WT w = heap [k];	531	WT w = heap [k];
349		532
350	while (k && heap [k >> 1]->at > w->at)	533	while (k && heap [k >> 1]->at > w->at)
351	{	534	{
352	heap [k] = heap [k >> 1];	535	heap [k] = heap [k >> 1];
353	heap [k]->active = k + 1;	536	((W)heap [k])->active = k + 1;
354	k >>= 1;	537	k >>= 1;
355	}	538	}
356		539
357	heap [k] = w;	540	heap [k] = w;
358	heap [k]->active = k + 1;	541	((W)heap [k])->active = k + 1;
359		542
360	}	543	}
361		544
362	static void	545	static void
363	downheap (WT *heap, int N, int k)	546	downheap (WT *heap, int N, int k)
…		…
373		556
374	if (w->at <= heap [j]->at)	557	if (w->at <= heap [j]->at)
375	break;	558	break;
376		559
377	heap [k] = heap [j];	560	heap [k] = heap [j];
378	heap [k]->active = k + 1;	561	((W)heap [k])->active = k + 1;
379	k = j;	562	k = j;
380	}	563	}
381		564
382	heap [k] = w;	565	heap [k] = w;
383	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);
384	}	574	}
385		575
386	/*****************************************************************************/	576	/*****************************************************************************/
387		577
388	typedef struct	578	typedef struct
389	{	579	{
390	struct ev_watcher_list *head;	580	WL head;
391	sig_atomic_t volatile gotsig;	581	sig_atomic_t volatile gotsig;
392	} ANSIG;	582	} ANSIG;
393		583
394	static ANSIG *signals;	584	static ANSIG *signals;
395	static int signalmax;	585	static int signalmax;
396		586
397	static int sigpipe [2];	587	static int sigpipe [2];
398	static sig_atomic_t volatile gotsig;	588	static sig_atomic_t volatile gotsig;
		589	static struct ev_io sigev;
399		590
400	static void	591	static void
401	signals_init (ANSIG *base, int count)	592	signals_init (ANSIG *base, int count)
402	{	593	{
403	while (count--)	594	while (count--)
…		…
410	}	601	}
411		602
412	static void	603	static void
413	sighandler (int signum)	604	sighandler (int signum)
414	{	605	{
		606	#if _WIN32
		607	signal (signum, sighandler);
		608	#endif
		609
415	signals [signum - 1].gotsig = 1;	610	signals [signum - 1].gotsig = 1;
416		611
417	if (!gotsig)	612	if (!gotsig)
418	{	613	{
419	int old_errno = errno;	614	int old_errno = errno;
…		…
421	write (sigpipe [1], &signum, 1);	616	write (sigpipe [1], &signum, 1);
422	errno = old_errno;	617	errno = old_errno;
423	}	618	}
424	}	619	}
425		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
426	static void	641	static void
427	sigcb (EV_P_ struct ev_io *iow, int revents)	642	sigcb (EV_P_ struct ev_io *iow, int revents)
428	{	643	{
429	struct ev_watcher_list *w;
430	int signum;	644	int signum;
431		645
432	read (sigpipe [0], &revents, 1);	646	read (sigpipe [0], &revents, 1);
433	gotsig = 0;	647	gotsig = 0;
434		648
435	for (signum = signalmax; signum--; )	649	for (signum = signalmax; signum--; )
436	if (signals [signum].gotsig)	650	if (signals [signum].gotsig)
437	{	651	ev_feed_signal_event (EV_A_ signum + 1);
438	signals [signum].gotsig = 0;	652	}
439		653
440	for (w = signals [signum].head; w; w = w->next)	654	inline void
441	event (EV_A_ (W)w, EV_SIGNAL);	655	fd_intern (int fd)
442	}	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
443	}	664	}
444		665
445	static void	666	static void
446	siginit (EV_P)	667	siginit (EV_P)
447	{	668	{
448	#ifndef WIN32	669	fd_intern (sigpipe [0]);
449	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	670	fd_intern (sigpipe [1]);
450	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
451
452	/* rather than sort out wether we really need nb, set it */
453	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);
454	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
455	#endif
456		671
457	ev_io_set (&sigev, sigpipe [0], EV_READ);	672	ev_io_set (&sigev, sigpipe [0], EV_READ);
458	ev_io_start (EV_A_ &sigev);	673	ev_io_start (EV_A_ &sigev);
459	ev_unref (EV_A); /* child watcher should not keep loop alive */	674	ev_unref (EV_A); /* child watcher should not keep loop alive */
460	}	675	}
461		676
462	/*****************************************************************************/	677	/*****************************************************************************/
463		678
		679	static struct ev_child *childs [PID_HASHSIZE];
		680
464	#ifndef WIN32	681	#ifndef _WIN32
		682
		683	static struct ev_signal childev;
465		684
466	#ifndef WCONTINUED	685	#ifndef WCONTINUED
467	# define WCONTINUED 0	686	# define WCONTINUED 0
468	#endif	687	#endif
469		688
…		…
473	struct ev_child *w;	692	struct ev_child *w;
474		693
475	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)
476	if (w->pid == pid || !w->pid)	695	if (w->pid == pid || !w->pid)
477	{	696	{
478	w->priority = sw->priority; /* need to do it *now* */	697	ev_priority (w) = ev_priority (sw); /* need to do it *now* */
479	w->rpid = pid;	698	w->rpid = pid;
480	w->rstatus = status;	699	w->rstatus = status;
481	event (EV_A_ (W)w, EV_CHILD);	700	ev_feed_event (EV_A_ (W)w, EV_CHILD);
482	}	701	}
483	}	702	}
484		703
485	static void	704	static void
486	childcb (EV_P_ struct ev_signal *sw, int revents)	705	childcb (EV_P_ struct ev_signal *sw, int revents)
…		…
488	int pid, status;	707	int pid, status;
489		708
490	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))	709	if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)))
491	{	710	{
492	/* 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 */
493	event (EV_A_ (W)sw, EV_SIGNAL);	712	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
494		713
495	child_reap (EV_A_ sw, pid, pid, status);	714	child_reap (EV_A_ sw, pid, pid, status);
496	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 */
497	}	716	}
498	}	717	}
499		718
500	#endif	719	#endif
501		720
502	/*****************************************************************************/	721	/*****************************************************************************/
503		722
		723	#if EV_USE_PORT
		724	# include "ev_port.c"
		725	#endif
504	#if EV_USE_KQUEUE	726	#if EV_USE_KQUEUE
505	# include "ev_kqueue.c"	727	# include "ev_kqueue.c"
506	#endif	728	#endif
507	#if EV_USE_EPOLL	729	#if EV_USE_EPOLL
508	# include "ev_epoll.c"	730	# include "ev_epoll.c"
509	#endif	731	#endif
510	#if EV_USEV_POLL	732	#if EV_USE_POLL
511	# include "ev_poll.c"	733	# include "ev_poll.c"
512	#endif	734	#endif
513	#if EV_USE_SELECT	735	#if EV_USE_SELECT
514	# include "ev_select.c"	736	# include "ev_select.c"
515	#endif	737	#endif
…		…
528		750
529	/* 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 */
530	static int	752	static int
531	enable_secure (void)	753	enable_secure (void)
532	{	754	{
533	#ifdef WIN32	755	#ifdef _WIN32
534	return 0;	756	return 0;
535	#else	757	#else
536	return getuid () != geteuid ()	758	return getuid () != geteuid ()
537	|| getgid () != getegid ();	759	|| getgid () != getegid ();
538	#endif	760	#endif
539	}	761	}
540		762
541	int	763	unsigned int
542	ev_method (EV_P)	764	ev_method (EV_P)
543	{	765	{
544	return method;	766	return method;
545	}	767	}
546		768
547	static void	769	static void
548	loop_init (EV_P_ int methods)	770	loop_init (EV_P_ unsigned int flags)
549	{	771	{
550	if (!method)	772	if (!method)
551	{	773	{
552	#if EV_USE_MONOTONIC	774	#if EV_USE_MONOTONIC
553	{	775	{
…		…
555	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	777	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
556	have_monotonic = 1;	778	have_monotonic = 1;
557	}	779	}
558	#endif	780	#endif
559		781
560	rt_now = ev_time ();	782	ev_rt_now = ev_time ();
561	mn_now = get_clock ();	783	mn_now = get_clock ();
562	now_floor = mn_now;	784	now_floor = mn_now;
563	rtmn_diff = rt_now - mn_now;	785	rtmn_diff = ev_rt_now - mn_now;
564		786
565	if (pipe (sigpipe))	787	if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS"))
566	return 0;	788	flags = atoi (getenv ("LIBEV_FLAGS"));
567		789
568	if (methods == EVMETHOD_AUTO)	790	if (!(flags & 0x0000ffff))
569	if (!enable_secure () && getenv ("LIBmethodS"))	791	flags |= 0x0000ffff;
570	methods = atoi (getenv ("LIBmethodS"));
571	else
572	methods = EVMETHOD_ANY;
573		792
574	method = 0;	793	method = 0;
		794	#if EV_USE_PORT
		795	if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags);
		796	#endif
575	#if EV_USE_KQUEUE	797	#if EV_USE_KQUEUE
576	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);	798	if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags);
577	#endif	799	#endif
578	#if EV_USE_EPOLL	800	#if EV_USE_EPOLL
579	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);	801	if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags);
580	#endif	802	#endif
581	#if EV_USEV_POLL	803	#if EV_USE_POLL
582	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);	804	if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags);
583	#endif	805	#endif
584	#if EV_USE_SELECT	806	#if EV_USE_SELECT
585	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);	807	if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags);
586	#endif	808	#endif
587		809
		810	ev_init (&sigev, sigcb);
		811	ev_set_priority (&sigev, EV_MAXPRI);
		812	}
		813	}
		814
		815	void
		816	loop_destroy (EV_P)
		817	{
		818	int i;
		819
		820	#if EV_USE_PORT
		821	if (method == EVMETHOD_PORT ) port_destroy (EV_A);
		822	#endif
		823	#if EV_USE_KQUEUE
		824	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		825	#endif
		826	#if EV_USE_EPOLL
		827	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		828	#endif
		829	#if EV_USE_POLL
		830	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		831	#endif
		832	#if EV_USE_SELECT
		833	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		834	#endif
		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
		849	method = 0;
		850	}
		851
		852	static void
		853	loop_fork (EV_P)
		854	{
		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
		861	#if EV_USE_EPOLL
		862	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		863	#endif
		864
		865	if (ev_is_active (&sigev))
		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;
		881	}
		882
		883	#if EV_MULTIPLICITY
		884	struct ev_loop *
		885	ev_loop_new (unsigned int flags)
		886	{
		887	struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
		888
		889	memset (loop, 0, sizeof (struct ev_loop));
		890
		891	loop_init (EV_A_ flags);
		892
		893	if (ev_method (EV_A))
		894	return loop;
		895
		896	return 0;
		897	}
		898
		899	void
		900	ev_loop_destroy (EV_P)
		901	{
		902	loop_destroy (EV_A);
		903	ev_free (loop);
		904	}
		905
		906	void
		907	ev_loop_fork (EV_P)
		908	{
		909	postfork = 1;
		910	}
		911
		912	#endif
		913
		914	#if EV_MULTIPLICITY
		915	struct ev_loop *
		916	ev_default_loop_ (unsigned int flags)
		917	#else
		918	int
		919	ev_default_loop (unsigned int flags)
		920	#endif
		921	{
		922	if (sigpipe [0] == sigpipe [1])
		923	if (pipe (sigpipe))
		924	return 0;
		925
		926	if (!ev_default_loop_ptr)
		927	{
		928	#if EV_MULTIPLICITY
		929	struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct;
		930	#else
		931	ev_default_loop_ptr = 1;
		932	#endif
		933
		934	loop_init (EV_A_ flags);
		935
588	if (method)	936	if (ev_method (EV_A))
589	{	937	{
590	ev_watcher_init (&sigev, sigcb);
591	ev_set_priority (&sigev, EV_MAXPRI);
592	siginit (EV_A);	938	siginit (EV_A);
593		939
594	#ifndef WIN32	940	#ifndef _WIN32
595	ev_signal_init (&childev, childcb, SIGCHLD);	941	ev_signal_init (&childev, childcb, SIGCHLD);
596	ev_set_priority (&childev, EV_MAXPRI);	942	ev_set_priority (&childev, EV_MAXPRI);
597	ev_signal_start (EV_A_ &childev);	943	ev_signal_start (EV_A_ &childev);
598	ev_unref (EV_A); /* child watcher should not keep loop alive */	944	ev_unref (EV_A); /* child watcher should not keep loop alive */
599	#endif	945	#endif
600	}	946	}
		947	else
		948	ev_default_loop_ptr = 0;
601	}	949	}
602		950
603	return method;	951	return ev_default_loop_ptr;
604	}	952	}
605		953
		954	void
		955	ev_default_destroy (void)
		956	{
606	#ifdef EV_MULTIPLICITY	957	#if EV_MULTIPLICITY
607		958	struct ev_loop *loop = ev_default_loop_ptr;
608	struct ev_loop *
609	ev_loop_new (int methods)
610	{
611	struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop));
612
613	loop_init (EV_A_ methods);
614
615	return loop;
616	}
617
618	void
619	ev_loop_delete (EV_P)
620	{
621	/*TODO*/
622	free (loop);
623	}
624
625	#else
626
627	int
628	ev_init (int methods)
629	{
630	loop_init ();
631	}
632
633	#endif	959	#endif
		960
		961	#ifndef _WIN32
		962	ev_ref (EV_A); /* child watcher */
		963	ev_signal_stop (EV_A_ &childev);
		964	#endif
		965
		966	ev_ref (EV_A); /* signal watcher */
		967	ev_io_stop (EV_A_ &sigev);
		968
		969	close (sigpipe [0]); sigpipe [0] = 0;
		970	close (sigpipe [1]); sigpipe [1] = 0;
		971
		972	loop_destroy (EV_A);
		973	}
		974
		975	void
		976	ev_default_fork (void)
		977	{
		978	#if EV_MULTIPLICITY
		979	struct ev_loop *loop = ev_default_loop_ptr;
		980	#endif
		981
		982	if (method)
		983	postfork = 1;
		984	}
634		985
635	/*****************************************************************************/	986	/*****************************************************************************/
636		987
637	void	988	static int
638	ev_fork_prepare (void)	989	any_pending (EV_P)
639	{	990	{
640	/* nop */	991	int pri;
641	}
642		992
643	void	993	for (pri = NUMPRI; pri--; )
644	ev_fork_parent (void)	994	if (pendingcnt [pri])
645	{	995	return 1;
646	/* nop */
647	}
648		996
649	void	997	return 0;
650	ev_fork_child (void)
651	{
652	/*TODO*/
653	#if !EV_MULTIPLICITY
654	#if EV_USE_EPOLL
655	if (method == EVMETHOD_EPOLL)
656	epoll_postfork_child (EV_A);
657	#endif
658
659	ev_io_stop (EV_A_ &sigev);
660	close (sigpipe [0]);
661	close (sigpipe [1]);
662	pipe (sigpipe);
663	siginit (EV_A);
664	#endif
665	}	998	}
666
667	/*****************************************************************************/
668		999
669	static void	1000	static void
670	call_pending (EV_P)	1001	call_pending (EV_P)
671	{	1002	{
672	int pri;	1003	int pri;
…		…
677	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	1008	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
678		1009
679	if (p->w)	1010	if (p->w)
680	{	1011	{
681	p->w->pending = 0;	1012	p->w->pending = 0;
682	p->w->cb (EV_A_ p->w, p->events);	1013	EV_CB_INVOKE (p->w, p->events);
683	}	1014	}
684	}	1015	}
685	}	1016	}
686		1017
687	static void	1018	static void
688	timers_reify (EV_P)	1019	timers_reify (EV_P)
689	{	1020	{
690	while (timercnt && timers [0]->at <= mn_now)	1021	while (timercnt && ((WT)timers [0])->at <= mn_now)
691	{	1022	{
692	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)));
693		1026
694	/* first reschedule or stop timer */	1027	/* first reschedule or stop timer */
695	if (w->repeat)	1028	if (w->repeat)
696	{	1029	{
697	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
698	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
699	downheap ((WT *)timers, timercnt, 0);	1036	downheap ((WT *)timers, timercnt, 0);
700	}	1037	}
701	else	1038	else
702	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */	1039	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
703		1040
704	event (EV_A_ (W)w, EV_TIMEOUT);	1041	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
705	}	1042	}
706	}	1043	}
707		1044
		1045	#if EV_PERIODICS
708	static void	1046	static void
709	periodics_reify (EV_P)	1047	periodics_reify (EV_P)
710	{	1048	{
711	while (periodiccnt && periodics [0]->at <= rt_now)	1049	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
712	{	1050	{
713	struct ev_periodic *w = periodics [0];	1051	struct ev_periodic *w = periodics [0];
714		1052
		1053	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1054
715	/* first reschedule or stop timer */	1055	/* first reschedule or stop timer */
716	if (w->interval)	1056	if (w->reschedule_cb)
717	{	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	{
718	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;
719	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));
720	downheap ((WT *)periodics, periodiccnt, 0);	1066	downheap ((WT *)periodics, periodiccnt, 0);
721	}	1067	}
722	else	1068	else
723	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */	1069	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
724		1070
725	event (EV_A_ (W)w, EV_PERIODIC);	1071	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
726	}	1072	}
727	}	1073	}
728		1074
729	static void	1075	static void
730	periodics_reschedule (EV_P)	1076	periodics_reschedule (EV_P)
…		…
734	/* adjust periodics after time jump */	1080	/* adjust periodics after time jump */
735	for (i = 0; i < periodiccnt; ++i)	1081	for (i = 0; i < periodiccnt; ++i)
736	{	1082	{
737	struct ev_periodic *w = periodics [i];	1083	struct ev_periodic *w = periodics [i];
738		1084
		1085	if (w->reschedule_cb)
		1086	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
739	if (w->interval)	1087	else if (w->interval)
740	{
741	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;
742
743	if (fabs (diff) >= 1e-4)
744	{
745	ev_periodic_stop (EV_A_ w);
746	ev_periodic_start (EV_A_ w);
747
748	i = 0; /* restart loop, inefficient, but time jumps should be rare */
749	}
750	}
751	}	1089	}
		1090
		1091	/* now rebuild the heap */
		1092	for (i = periodiccnt >> 1; i--; )
		1093	downheap ((WT *)periodics, periodiccnt, i);
752	}	1094	}
		1095	#endif
753		1096
754	inline int	1097	inline int
755	time_update_monotonic (EV_P)	1098	time_update_monotonic (EV_P)
756	{	1099	{
757	mn_now = get_clock ();	1100	mn_now = get_clock ();
758		1101
759	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))	1102	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
760	{	1103	{
761	rt_now = rtmn_diff + mn_now;	1104	ev_rt_now = rtmn_diff + mn_now;
762	return 0;	1105	return 0;
763	}	1106	}
764	else	1107	else
765	{	1108	{
766	now_floor = mn_now;	1109	now_floor = mn_now;
767	rt_now = ev_time ();	1110	ev_rt_now = ev_time ();
768	return 1;	1111	return 1;
769	}	1112	}
770	}	1113	}
771		1114
772	static void	1115	static void
…		…
781	{	1124	{
782	ev_tstamp odiff = rtmn_diff;	1125	ev_tstamp odiff = rtmn_diff;
783		1126
784	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 */
785	{	1128	{
786	rtmn_diff = rt_now - mn_now;	1129	rtmn_diff = ev_rt_now - mn_now;
787		1130
788	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)	1131	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
789	return; /* all is well */	1132	return; /* all is well */
790		1133
791	rt_now = ev_time ();	1134	ev_rt_now = ev_time ();
792	mn_now = get_clock ();	1135	mn_now = get_clock ();
793	now_floor = mn_now;	1136	now_floor = mn_now;
794	}	1137	}
795		1138
		1139	# if EV_PERIODICS
796	periodics_reschedule (EV_A);	1140	periodics_reschedule (EV_A);
		1141	# endif
797	/* no timer adjustment, as the monotonic clock doesn't jump */	1142	/* no timer adjustment, as the monotonic clock doesn't jump */
798	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */	1143	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
799	}	1144	}
800	}	1145	}
801	else	1146	else
802	#endif	1147	#endif
803	{	1148	{
804	rt_now = ev_time ();	1149	ev_rt_now = ev_time ();
805		1150
806	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))
807	{	1152	{
		1153	#if EV_PERIODICS
808	periodics_reschedule (EV_A);	1154	periodics_reschedule (EV_A);
		1155	#endif
809		1156
810	/* 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 */
811	for (i = 0; i < timercnt; ++i)	1158	for (i = 0; i < timercnt; ++i)
812	timers [i]->at += rt_now - mn_now;	1159	((WT)timers [i])->at += ev_rt_now - mn_now;
813	}	1160	}
814		1161
815	mn_now = rt_now;	1162	mn_now = ev_rt_now;
816	}	1163	}
817	}	1164	}
818		1165
819	void	1166	void
820	ev_ref (EV_P)	1167	ev_ref (EV_P)
…		…
834	ev_loop (EV_P_ int flags)	1181	ev_loop (EV_P_ int flags)
835	{	1182	{
836	double block;	1183	double block;
837	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;	1184	loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0;
838		1185
839	do	1186	while (activecnt)
840	{	1187	{
841	/* queue check watchers (and execute them) */	1188	/* queue check watchers (and execute them) */
842	if (expect_false (preparecnt))	1189	if (expect_false (preparecnt))
843	{	1190	{
844	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);	1191	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
845	call_pending (EV_A);	1192	call_pending (EV_A);
846	}	1193	}
847		1194
		1195	/* we might have forked, so reify kernel state if necessary */
		1196	if (expect_false (postfork))
		1197	loop_fork (EV_A);
		1198
848	/* update fd-related kernel structures */	1199	/* update fd-related kernel structures */
849	fd_reify (EV_A);	1200	fd_reify (EV_A);
850		1201
851	/* calculate blocking time */	1202	/* calculate blocking time */
852		1203
853	/* 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
854	always have timers, we just calculate it always */	1205	always have timers, we just calculate it always */
855	#if EV_USE_MONOTONIC	1206	#if EV_USE_MONOTONIC
856	if (expect_true (have_monotonic))	1207	if (expect_true (have_monotonic))
857	time_update_monotonic (EV_A);	1208	time_update_monotonic (EV_A);
858	else	1209	else
859	#endif	1210	#endif
860	{	1211	{
861	rt_now = ev_time ();	1212	ev_rt_now = ev_time ();
862	mn_now = rt_now;	1213	mn_now = ev_rt_now;
863	}	1214	}
864		1215
865	if (flags & EVLOOP_NONBLOCK || idlecnt)	1216	if (flags & EVLOOP_NONBLOCK || idlecnt)
866	block = 0.;	1217	block = 0.;
867	else	1218	else
868	{	1219	{
869	block = MAX_BLOCKTIME;	1220	block = MAX_BLOCKTIME;
870		1221
871	if (timercnt)	1222	if (timercnt)
872	{	1223	{
873	ev_tstamp to = timers [0]->at - mn_now + method_fudge;	1224	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
874	if (block > to) block = to;	1225	if (block > to) block = to;
875	}	1226	}
876		1227
		1228	#if EV_PERIODICS
877	if (periodiccnt)	1229	if (periodiccnt)
878	{	1230	{
879	ev_tstamp to = periodics [0]->at - rt_now + method_fudge;	1231	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
880	if (block > to) block = to;	1232	if (block > to) block = to;
881	}	1233	}
		1234	#endif
882		1235
883	if (block < 0.) block = 0.;	1236	if (block < 0.) block = 0.;
884	}	1237	}
885		1238
886	method_poll (EV_A_ block);	1239	method_poll (EV_A_ block);
887		1240
888	/* update rt_now, do magic */	1241	/* update ev_rt_now, do magic */
889	time_update (EV_A);	1242	time_update (EV_A);
890		1243
891	/* queue pending timers and reschedule them */	1244	/* queue pending timers and reschedule them */
892	timers_reify (EV_A); /* relative timers called last */	1245	timers_reify (EV_A); /* relative timers called last */
		1246	#if EV_PERIODICS
893	periodics_reify (EV_A); /* absolute timers called first */	1247	periodics_reify (EV_A); /* absolute timers called first */
		1248	#endif
894		1249
895	/* queue idle watchers unless io or timers are pending */	1250	/* queue idle watchers unless io or timers are pending */
896	if (!pendingcnt)	1251	if (idlecnt && !any_pending (EV_A))
897	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);	1252	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
898		1253
899	/* queue check watchers, to be executed first */	1254	/* queue check watchers, to be executed first */
900	if (checkcnt)	1255	if (checkcnt)
901	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);	1256	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
902		1257
903	call_pending (EV_A);	1258	call_pending (EV_A);
		1259
		1260	if (loop_done)
		1261	break;
904	}	1262	}
905	while (activecnt && !loop_done);
906		1263
907	if (loop_done != 2)	1264	if (loop_done != 2)
908	loop_done = 0;	1265	loop_done = 0;
909	}	1266	}
910		1267
…		…
976	return;	1333	return;
977		1334
978	assert (("ev_io_start called with negative fd", fd >= 0));	1335	assert (("ev_io_start called with negative fd", fd >= 0));
979		1336
980	ev_start (EV_A_ (W)w, 1);	1337	ev_start (EV_A_ (W)w, 1);
981	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1338	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
982	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1339	wlist_add ((WL *)&anfds[fd].head, (WL)w);
983		1340
984	fd_change (EV_A_ fd);	1341	fd_change (EV_A_ fd);
985	}	1342	}
986		1343
…		…
989	{	1346	{
990	ev_clear_pending (EV_A_ (W)w);	1347	ev_clear_pending (EV_A_ (W)w);
991	if (!ev_is_active (w))	1348	if (!ev_is_active (w))
992	return;	1349	return;
993		1350
		1351	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1352
994	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1353	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
995	ev_stop (EV_A_ (W)w);	1354	ev_stop (EV_A_ (W)w);
996		1355
997	fd_change (EV_A_ w->fd);	1356	fd_change (EV_A_ w->fd);
998	}	1357	}
…		…
1001	ev_timer_start (EV_P_ struct ev_timer *w)	1360	ev_timer_start (EV_P_ struct ev_timer *w)
1002	{	1361	{
1003	if (ev_is_active (w))	1362	if (ev_is_active (w))
1004	return;	1363	return;
1005		1364
1006	w->at += mn_now;	1365	((WT)w)->at += mn_now;
1007		1366
1008	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.));
1009		1368
1010	ev_start (EV_A_ (W)w, ++timercnt);	1369	ev_start (EV_A_ (W)w, ++timercnt);
1011	array_needsize (timers, timermax, timercnt, );	1370	array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2);
1012	timers [timercnt - 1] = w;	1371	timers [timercnt - 1] = w;
1013	upheap ((WT *)timers, timercnt - 1);	1372	upheap ((WT *)timers, timercnt - 1);
		1373
		1374	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
1014	}	1375	}
1015		1376
1016	void	1377	void
1017	ev_timer_stop (EV_P_ struct ev_timer *w)	1378	ev_timer_stop (EV_P_ struct ev_timer *w)
1018	{	1379	{
1019	ev_clear_pending (EV_A_ (W)w);	1380	ev_clear_pending (EV_A_ (W)w);
1020	if (!ev_is_active (w))	1381	if (!ev_is_active (w))
1021	return;	1382	return;
1022		1383
		1384	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1385
1023	if (w->active < timercnt--)	1386	if (((W)w)->active < timercnt--)
1024	{	1387	{
1025	timers [w->active - 1] = timers [timercnt];	1388	timers [((W)w)->active - 1] = timers [timercnt];
1026	downheap ((WT *)timers, timercnt, w->active - 1);	1389	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1027	}	1390	}
1028		1391
1029	w->at = w->repeat;	1392	((WT)w)->at -= mn_now;
1030		1393
1031	ev_stop (EV_A_ (W)w);	1394	ev_stop (EV_A_ (W)w);
1032	}	1395	}
1033		1396
1034	void	1397	void
…		…
1036	{	1399	{
1037	if (ev_is_active (w))	1400	if (ev_is_active (w))
1038	{	1401	{
1039	if (w->repeat)	1402	if (w->repeat)
1040	{	1403	{
1041	w->at = mn_now + w->repeat;	1404	((WT)w)->at = mn_now + w->repeat;
1042	downheap ((WT *)timers, timercnt, w->active - 1);	1405	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
1043	}	1406	}
1044	else	1407	else
1045	ev_timer_stop (EV_A_ w);	1408	ev_timer_stop (EV_A_ w);
1046	}	1409	}
1047	else if (w->repeat)	1410	else if (w->repeat)
		1411	{
		1412	w->at = w->repeat;
1048	ev_timer_start (EV_A_ w);	1413	ev_timer_start (EV_A_ w);
		1414	}
1049	}	1415	}
1050		1416
		1417	#if EV_PERIODICS
1051	void	1418	void
1052	ev_periodic_start (EV_P_ struct ev_periodic *w)	1419	ev_periodic_start (EV_P_ struct ev_periodic *w)
1053	{	1420	{
1054	if (ev_is_active (w))	1421	if (ev_is_active (w))
1055	return;	1422	return;
1056		1423
		1424	if (w->reschedule_cb)
		1425	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1426	else if (w->interval)
		1427	{
1057	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.));
1058
1059	/* 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 */
1060	if (w->interval)
1061	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	}
1062		1432
1063	ev_start (EV_A_ (W)w, ++periodiccnt);	1433	ev_start (EV_A_ (W)w, ++periodiccnt);
1064	array_needsize (periodics, periodicmax, periodiccnt, );	1434	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2);
1065	periodics [periodiccnt - 1] = w;	1435	periodics [periodiccnt - 1] = w;
1066	upheap ((WT *)periodics, periodiccnt - 1);	1436	upheap ((WT *)periodics, periodiccnt - 1);
		1437
		1438	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
1067	}	1439	}
1068		1440
1069	void	1441	void
1070	ev_periodic_stop (EV_P_ struct ev_periodic *w)	1442	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1071	{	1443	{
1072	ev_clear_pending (EV_A_ (W)w);	1444	ev_clear_pending (EV_A_ (W)w);
1073	if (!ev_is_active (w))	1445	if (!ev_is_active (w))
1074	return;	1446	return;
1075		1447
		1448	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1449
1076	if (w->active < periodiccnt--)	1450	if (((W)w)->active < periodiccnt--)
1077	{	1451	{
1078	periodics [w->active - 1] = periodics [periodiccnt];	1452	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1079	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1453	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1080	}	1454	}
1081		1455
		1456	ev_stop (EV_A_ (W)w);
		1457	}
		1458
		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
		1469	ev_idle_start (EV_P_ struct ev_idle *w)
		1470	{
		1471	if (ev_is_active (w))
		1472	return;
		1473
		1474	ev_start (EV_A_ (W)w, ++idlecnt);
		1475	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2);
		1476	idles [idlecnt - 1] = w;
		1477	}
		1478
		1479	void
		1480	ev_idle_stop (EV_P_ struct ev_idle *w)
		1481	{
		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	{
		1493	if (ev_is_active (w))
		1494	return;
		1495
		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];
		1509	ev_stop (EV_A_ (W)w);
		1510	}
		1511
		1512	void
		1513	ev_check_start (EV_P_ struct ev_check *w)
		1514	{
		1515	if (ev_is_active (w))
		1516	return;
		1517
		1518	ev_start (EV_A_ (W)w, ++checkcnt);
		1519	array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2);
		1520	checks [checkcnt - 1] = w;
		1521	}
		1522
		1523	void
		1524	ev_check_stop (EV_P_ struct ev_check *w)
		1525	{
		1526	ev_clear_pending (EV_A_ (W)w);
		1527	if (!ev_is_active (w))
		1528	return;
		1529
		1530	checks [((W)w)->active - 1] = checks [--checkcnt];
1082	ev_stop (EV_A_ (W)w);	1531	ev_stop (EV_A_ (W)w);
1083	}	1532	}
1084		1533
1085	#ifndef SA_RESTART	1534	#ifndef SA_RESTART
1086	# define SA_RESTART 0	1535	# define SA_RESTART 0
1087	#endif	1536	#endif
1088		1537
1089	void	1538	void
1090	ev_signal_start (EV_P_ struct ev_signal *w)	1539	ev_signal_start (EV_P_ struct ev_signal *w)
1091	{	1540	{
		1541	#if EV_MULTIPLICITY
		1542	assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
		1543	#endif
1092	if (ev_is_active (w))	1544	if (ev_is_active (w))
1093	return;	1545	return;
1094		1546
1095	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));
1096		1548
1097	ev_start (EV_A_ (W)w, 1);	1549	ev_start (EV_A_ (W)w, 1);
1098	array_needsize (signals, signalmax, w->signum, signals_init);	1550	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1099	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1551	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1100		1552
1101	if (!w->next)	1553	if (!((WL)w)->next)
1102	{	1554	{
		1555	#if _WIN32
		1556	signal (w->signum, sighandler);
		1557	#else
1103	struct sigaction sa;	1558	struct sigaction sa;
1104	sa.sa_handler = sighandler;	1559	sa.sa_handler = sighandler;
1105	sigfillset (&sa.sa_mask);	1560	sigfillset (&sa.sa_mask);
1106	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 */
1107	sigaction (w->signum, &sa, 0);	1562	sigaction (w->signum, &sa, 0);
		1563	#endif
1108	}	1564	}
1109	}	1565	}
1110		1566
1111	void	1567	void
1112	ev_signal_stop (EV_P_ struct ev_signal *w)	1568	ev_signal_stop (EV_P_ struct ev_signal *w)
…		…
1121	if (!signals [w->signum - 1].head)	1577	if (!signals [w->signum - 1].head)
1122	signal (w->signum, SIG_DFL);	1578	signal (w->signum, SIG_DFL);
1123	}	1579	}
1124		1580
1125	void	1581	void
1126	ev_idle_start (EV_P_ struct ev_idle *w)
1127	{
1128	if (ev_is_active (w))
1129	return;
1130
1131	ev_start (EV_A_ (W)w, ++idlecnt);
1132	array_needsize (idles, idlemax, idlecnt, );
1133	idles [idlecnt - 1] = w;
1134	}
1135
1136	void
1137	ev_idle_stop (EV_P_ struct ev_idle *w)
1138	{
1139	ev_clear_pending (EV_A_ (W)w);
1140	if (ev_is_active (w))
1141	return;
1142
1143	idles [w->active - 1] = idles [--idlecnt];
1144	ev_stop (EV_A_ (W)w);
1145	}
1146
1147	void
1148	ev_prepare_start (EV_P_ struct ev_prepare *w)
1149	{
1150	if (ev_is_active (w))
1151	return;
1152
1153	ev_start (EV_A_ (W)w, ++preparecnt);
1154	array_needsize (prepares, preparemax, preparecnt, );
1155	prepares [preparecnt - 1] = w;
1156	}
1157
1158	void
1159	ev_prepare_stop (EV_P_ struct ev_prepare *w)
1160	{
1161	ev_clear_pending (EV_A_ (W)w);
1162	if (ev_is_active (w))
1163	return;
1164
1165	prepares [w->active - 1] = prepares [--preparecnt];
1166	ev_stop (EV_A_ (W)w);
1167	}
1168
1169	void
1170	ev_check_start (EV_P_ struct ev_check *w)
1171	{
1172	if (ev_is_active (w))
1173	return;
1174
1175	ev_start (EV_A_ (W)w, ++checkcnt);
1176	array_needsize (checks, checkmax, checkcnt, );
1177	checks [checkcnt - 1] = w;
1178	}
1179
1180	void
1181	ev_check_stop (EV_P_ struct ev_check *w)
1182	{
1183	ev_clear_pending (EV_A_ (W)w);
1184	if (ev_is_active (w))
1185	return;
1186
1187	checks [w->active - 1] = checks [--checkcnt];
1188	ev_stop (EV_A_ (W)w);
1189	}
1190
1191	void
1192	ev_child_start (EV_P_ struct ev_child *w)	1582	ev_child_start (EV_P_ struct ev_child *w)
1193	{	1583	{
		1584	#if EV_MULTIPLICITY
		1585	assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
		1586	#endif
1194	if (ev_is_active (w))	1587	if (ev_is_active (w))
1195	return;	1588	return;
1196		1589
1197	ev_start (EV_A_ (W)w, 1);	1590	ev_start (EV_A_ (W)w, 1);
1198	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1591	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
…		…
1200		1593
1201	void	1594	void
1202	ev_child_stop (EV_P_ struct ev_child *w)	1595	ev_child_stop (EV_P_ struct ev_child *w)
1203	{	1596	{
1204	ev_clear_pending (EV_A_ (W)w);	1597	ev_clear_pending (EV_A_ (W)w);
1205	if (ev_is_active (w))	1598	if (!ev_is_active (w))
1206	return;	1599	return;
1207		1600
1208	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1601	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1209	ev_stop (EV_A_ (W)w);	1602	ev_stop (EV_A_ (W)w);
1210	}	1603	}
…		…
1225	void (*cb)(int revents, void *arg) = once->cb;	1618	void (*cb)(int revents, void *arg) = once->cb;
1226	void *arg = once->arg;	1619	void *arg = once->arg;
1227		1620
1228	ev_io_stop (EV_A_ &once->io);	1621	ev_io_stop (EV_A_ &once->io);
1229	ev_timer_stop (EV_A_ &once->to);	1622	ev_timer_stop (EV_A_ &once->to);
1230	free (once);	1623	ev_free (once);
1231		1624
1232	cb (revents, arg);	1625	cb (revents, arg);
1233	}	1626	}
1234		1627
1235	static void	1628	static void
…		…
1245	}	1638	}
1246		1639
1247	void	1640	void
1248	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)
1249	{	1642	{
1250	struct ev_once *once = malloc (sizeof (struct ev_once));	1643	struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
1251		1644
1252	if (!once)	1645	if (!once)
1253	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);	1646	cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg);
1254	else	1647	else
1255	{	1648	{
1256	once->cb = cb;	1649	once->cb = cb;
1257	once->arg = arg;	1650	once->arg = arg;
1258		1651
1259	ev_watcher_init (&once->io, once_cb_io);	1652	ev_init (&once->io, once_cb_io);
1260	if (fd >= 0)	1653	if (fd >= 0)
1261	{	1654	{
1262	ev_io_set (&once->io, fd, events);	1655	ev_io_set (&once->io, fd, events);
1263	ev_io_start (EV_A_ &once->io);	1656	ev_io_start (EV_A_ &once->io);
1264	}	1657	}
1265		1658
1266	ev_watcher_init (&once->to, once_cb_to);	1659	ev_init (&once->to, once_cb_to);
1267	if (timeout >= 0.)	1660	if (timeout >= 0.)
1268	{	1661	{
1269	ev_timer_set (&once->to, timeout, 0.);	1662	ev_timer_set (&once->to, timeout, 0.);
1270	ev_timer_start (EV_A_ &once->to);	1663	ev_timer_start (EV_A_ &once->to);
1271	}	1664	}
1272	}	1665	}
1273	}	1666	}
1274		1667
1275	/*****************************************************************************/	1668	#ifdef __cplusplus
1276
1277	#if 0
1278
1279	struct ev_io wio;
1280
1281	static void
1282	sin_cb (struct ev_io *w, int revents)
1283	{
1284	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1285	}	1669	}
1286
1287	static void
1288	ocb (struct ev_timer *w, int revents)
1289	{
1290	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1291	ev_timer_stop (w);
1292	ev_timer_start (w);
1293	}
1294
1295	static void
1296	scb (struct ev_signal *w, int revents)
1297	{
1298	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1299	ev_io_stop (&wio);
1300	ev_io_start (&wio);
1301	}
1302
1303	static void
1304	gcb (struct ev_signal *w, int revents)
1305	{
1306	fprintf (stderr, "generic %x\n", revents);
1307
1308	}
1309
1310	int main (void)
1311	{
1312	ev_init (0);
1313
1314	ev_io_init (&wio, sin_cb, 0, EV_READ);
1315	ev_io_start (&wio);
1316
1317	struct ev_timer t[10000];
1318
1319	#if 0
1320	int i;
1321	for (i = 0; i < 10000; ++i)
1322	{
1323	struct ev_timer *w = t + i;
1324	ev_watcher_init (w, ocb, i);
1325	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1326	ev_timer_start (w);
1327	if (drand48 () < 0.5)
1328	ev_timer_stop (w);
1329	}
1330	#endif	1670	#endif
1331		1671
1332	struct ev_timer t1;
1333	ev_timer_init (&t1, ocb, 5, 10);
1334	ev_timer_start (&t1);
1335
1336	struct ev_signal sig;
1337	ev_signal_init (&sig, scb, SIGQUIT);
1338	ev_signal_start (&sig);
1339
1340	struct ev_check cw;
1341	ev_check_init (&cw, gcb);
1342	ev_check_start (&cw);
1343
1344	struct ev_idle iw;
1345	ev_idle_init (&iw, gcb);
1346	ev_idle_start (&iw);
1347
1348	ev_loop (0);
1349
1350	return 0;
1351	}
1352
1353	#endif
1354
1355
1356
1357

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