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

Comparing libev/ev.c (file contents):
Revision 1.49 by root, Sat Nov 3 16:16:58 2007 UTC vs.
Revision 1.106 by root, Mon Nov 12 01:07:50 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	#if EV_USE_CONFIG_H	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
33	#endif	64	#endif
34		65
35	#include <math.h>	66	#include <math.h>
36	#include <stdlib.h>	67	#include <stdlib.h>
37	#include <unistd.h>
38	#include <fcntl.h>	68	#include <fcntl.h>
39	#include <signal.h>
40	#include <stddef.h>	69	#include <stddef.h>
41		70
42	#include <stdio.h>	71	#include <stdio.h>
43		72
44	#include <assert.h>	73	#include <assert.h>
45	#include <errno.h>	74	#include <errno.h>
46	#include <sys/types.h>	75	#include <sys/types.h>
		76	#include <time.h>
		77
		78	#include <signal.h>
		79
47	#ifndef WIN32	80	#ifndef _WIN32
		81	# include <unistd.h>
		82	# include <sys/time.h>
48	# include <sys/wait.h>	83	# include <sys/wait.h>
		84	#else
		85	# define WIN32_LEAN_AND_MEAN
		86	# include <windows.h>
		87	# ifndef EV_SELECT_IS_WINSOCKET
		88	# define EV_SELECT_IS_WINSOCKET 1
49	#endif	89	# endif
50	#include <sys/time.h>	90	#endif
51	#include <time.h>
52		91
53	/**/	92	/**/
54		93
55	#ifndef EV_USE_MONOTONIC	94	#ifndef EV_USE_MONOTONIC
56	# define EV_USE_MONOTONIC 1	95	# define EV_USE_MONOTONIC 1
57	#endif	96	#endif
58		97
59	#ifndef EV_USE_SELECT	98	#ifndef EV_USE_SELECT
60	# define EV_USE_SELECT 1	99	# define EV_USE_SELECT 1
		100	# define EV_SELECT_USE_FD_SET 1
61	#endif	101	#endif
62		102
63	#ifndef EV_USE_POLL	103	#ifndef EV_USE_POLL
64	# define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */	104	# ifdef _WIN32
		105	# define EV_USE_POLL 0
		106	# else
		107	# define EV_USE_POLL 1
		108	# endif
65	#endif	109	#endif
66		110
67	#ifndef EV_USE_EPOLL	111	#ifndef EV_USE_EPOLL
68	# define EV_USE_EPOLL 0	112	# define EV_USE_EPOLL 0
69	#endif	113	#endif
…		…
75	#ifndef EV_USE_REALTIME	119	#ifndef EV_USE_REALTIME
76	# define EV_USE_REALTIME 1	120	# define EV_USE_REALTIME 1
77	#endif	121	#endif
78		122
79	/**/	123	/**/
		124
		125	/* darwin simply cnanot be helped */
		126	#ifdef __APPLE__
		127	# undef EV_USE_POLL
		128	# undef EV_USE_KQUEUE
		129	#endif
80		130
81	#ifndef CLOCK_MONOTONIC	131	#ifndef CLOCK_MONOTONIC
82	# undef EV_USE_MONOTONIC	132	# undef EV_USE_MONOTONIC
83	# define EV_USE_MONOTONIC 0	133	# define EV_USE_MONOTONIC 0
84	#endif	134	#endif
85		135
86	#ifndef CLOCK_REALTIME	136	#ifndef CLOCK_REALTIME
87	# undef EV_USE_REALTIME	137	# undef EV_USE_REALTIME
88	# define EV_USE_REALTIME 0	138	# define EV_USE_REALTIME 0
		139	#endif
		140
		141	#if EV_SELECT_IS_WINSOCKET
		142	# include <winsock.h>
89	#endif	143	#endif
90		144
91	/**/	145	/**/
92		146
93	#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */	147	#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) */	148	#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 */	149	#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 */	150	/#define CLEANUP_INTERVAL 300. / how often to try to free memory and re-check fds */
97		151
		152	#ifdef EV_H
		153	# include EV_H
		154	#else
98	#include "ev.h"	155	# include "ev.h"
		156	#endif
99		157
100	#if __GNUC__ >= 3	158	#if __GNUC__ >= 3
101	# define expect(expr,value) __builtin_expect ((expr),(value))	159	# define expect(expr,value) __builtin_expect ((expr),(value))
102	# define inline inline	160	# define inline inline
103	#else	161	#else
…		…
109	#define expect_true(expr) expect ((expr) != 0, 1)	167	#define expect_true(expr) expect ((expr) != 0, 1)
110		168
111	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)	169	#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
112	#define ABSPRI(w) ((w)->priority - EV_MINPRI)	170	#define ABSPRI(w) ((w)->priority - EV_MINPRI)
113		171
		172	#define EMPTY /* required for microsofts broken pseudo-c compiler */
		173
114	typedef struct ev_watcher *W;	174	typedef struct ev_watcher *W;
115	typedef struct ev_watcher_list *WL;	175	typedef struct ev_watcher_list *WL;
116	typedef struct ev_watcher_time *WT;	176	typedef struct ev_watcher_time *WT;
117		177
118	static ev_tstamp now_floor, now, diff; /* monotonic clock */	178	static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
		179
		180	#ifdef _WIN32
		181	# include "ev_win32.c"
		182	#endif
		183
		184	/*****************************************************************************/
		185
		186	static void (syserr_cb)(const char msg);
		187
		188	void ev_set_syserr_cb (void (cb)(const char msg))
		189	{
		190	syserr_cb = cb;
		191	}
		192
		193	static void
		194	syserr (const char *msg)
		195	{
		196	if (!msg)
		197	msg = "(libev) system error";
		198
		199	if (syserr_cb)
		200	syserr_cb (msg);
		201	else
		202	{
		203	perror (msg);
		204	abort ();
		205	}
		206	}
		207
		208	static void (alloc)(void *ptr, long size);
		209
		210	void ev_set_allocator (void (cb)(void *ptr, long size))
		211	{
		212	alloc = cb;
		213	}
		214
		215	static void *
		216	ev_realloc (void *ptr, long size)
		217	{
		218	ptr = alloc ? alloc (ptr, size) : realloc (ptr, size);
		219
		220	if (!ptr && size)
		221	{
		222	fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size);
		223	abort ();
		224	}
		225
		226	return ptr;
		227	}
		228
		229	#define ev_malloc(size) ev_realloc (0, (size))
		230	#define ev_free(ptr) ev_realloc ((ptr), 0)
		231
		232	/*****************************************************************************/
		233
		234	typedef struct
		235	{
		236	WL head;
		237	unsigned char events;
		238	unsigned char reify;
		239	#if EV_SELECT_IS_WINSOCKET
		240	SOCKET handle;
		241	#endif
		242	} ANFD;
		243
		244	typedef struct
		245	{
		246	W w;
		247	int events;
		248	} ANPENDING;
		249
		250	#if EV_MULTIPLICITY
		251
		252	struct ev_loop
		253	{
		254	ev_tstamp ev_rt_now;
		255	#define ev_rt_now ((loop)->ev_rt_now)
		256	#define VAR(name,decl) decl;
		257	#include "ev_vars.h"
		258	#undef VAR
		259	};
		260	#include "ev_wrap.h"
		261
		262	struct ev_loop default_loop_struct;
		263	static struct ev_loop *default_loop;
		264
		265	#else
		266
119	ev_tstamp ev_now;	267	ev_tstamp ev_rt_now;
120	int ev_method;	268	#define VAR(name,decl) static decl;
		269	#include "ev_vars.h"
		270	#undef VAR
121		271
122	static int have_monotonic; /* runtime */	272	static int default_loop;
123		273
124	static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */	274	#endif
125	static void (*method_modify)(int fd, int oev, int nev);
126	static void (*method_poll)(ev_tstamp timeout);
127		275
128	/*****************************************************************************/	276	/*****************************************************************************/
129		277
130	ev_tstamp	278	ev_tstamp
131	ev_time (void)	279	ev_time (void)
…		…
139	gettimeofday (&tv, 0);	287	gettimeofday (&tv, 0);
140	return tv.tv_sec + tv.tv_usec * 1e-6;	288	return tv.tv_sec + tv.tv_usec * 1e-6;
141	#endif	289	#endif
142	}	290	}
143		291
144	static ev_tstamp	292	inline ev_tstamp
145	get_clock (void)	293	get_clock (void)
146	{	294	{
147	#if EV_USE_MONOTONIC	295	#if EV_USE_MONOTONIC
148	if (expect_true (have_monotonic))	296	if (expect_true (have_monotonic))
149	{	297	{
…		…
154	#endif	302	#endif
155		303
156	return ev_time ();	304	return ev_time ();
157	}	305	}
158		306
		307	#if EV_MULTIPLICITY
		308	ev_tstamp
		309	ev_now (EV_P)
		310	{
		311	return ev_rt_now;
		312	}
		313	#endif
		314
159	#define array_roundsize(base,n) ((n) \| 4 & ~3)	315	#define array_roundsize(type,n) ((n) \| 4 & ~3)
160		316
161	#define array_needsize(base,cur,cnt,init) \	317	#define array_needsize(type,base,cur,cnt,init) \
162	if (expect_false ((cnt) > cur)) \	318	if (expect_false ((cnt) > cur)) \
163	{ \	319	{ \
164	int newcnt = cur; \	320	int newcnt = cur; \
165	do \	321	do \
166	{ \	322	{ \
167	newcnt = array_roundsize (base, newcnt << 1); \	323	newcnt = array_roundsize (type, newcnt << 1); \
168	} \	324	} \
169	while ((cnt) > newcnt); \	325	while ((cnt) > newcnt); \
170	\	326	\
171	base = realloc (base, sizeof (base) (newcnt)); \	327	base = (type )ev_realloc (base, sizeof (type) (newcnt));\
172	init (base + cur, newcnt - cur); \	328	init (base + cur, newcnt - cur); \
173	cur = newcnt; \	329	cur = newcnt; \
174	}	330	}
		331
		332	#define array_slim(type,stem) \
		333	if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
		334	{ \
		335	stem ## max = array_roundsize (stem ## cnt >> 1); \
		336	base = (type )ev_realloc (base, sizeof (type) (stem ## max));\
		337	fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/D/\
		338	}
		339
		340	#define array_free(stem, idx) \
		341	ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0;
175		342
176	/*****************************************************************************/	343	/*****************************************************************************/
177
178	typedef struct
179	{
180	struct ev_io *head;
181	unsigned char events;
182	unsigned char reify;
183	} ANFD;
184
185	static ANFD *anfds;
186	static int anfdmax;
187		344
188	static void	345	static void
189	anfds_init (ANFD *base, int count)	346	anfds_init (ANFD *base, int count)
190	{	347	{
191	while (count--)	348	while (count--)
…		…
196		353
197	++base;	354	++base;
198	}	355	}
199	}	356	}
200		357
201	typedef struct	358	void
		359	ev_feed_event (EV_P_ void *w, int revents)
202	{	360	{
203	W w;	361	W w_ = (W)w;
204	int events;
205	} ANPENDING;
206		362
207	static ANPENDING *pendings [NUMPRI];
208	static int pendingmax [NUMPRI], pendingcnt [NUMPRI];
209
210	static void
211	event (W w, int events)
212	{
213	if (w->pending)	363	if (w_->pending)
214	{	364	{
215	pendings [ABSPRI (w)][w->pending - 1].events \|= events;	365	pendings [ABSPRI (w_)][w_->pending - 1].events \|= revents;
216	return;	366	return;
217	}	367	}
218		368
219	w->pending = ++pendingcnt [ABSPRI (w)];	369	w_->pending = ++pendingcnt [ABSPRI (w_)];
220	array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], );	370	array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void));
221	pendings [ABSPRI (w)][w->pending - 1].w = w;	371	pendings [ABSPRI (w_)][w_->pending - 1].w = w_;
222	pendings [ABSPRI (w)][w->pending - 1].events = events;	372	pendings [ABSPRI (w_)][w_->pending - 1].events = revents;
223	}	373	}
224		374
225	static void	375	static void
226	queue_events (W *events, int eventcnt, int type)	376	queue_events (EV_P_ W *events, int eventcnt, int type)
227	{	377	{
228	int i;	378	int i;
229		379
230	for (i = 0; i < eventcnt; ++i)	380	for (i = 0; i < eventcnt; ++i)
231	event (events [i], type);	381	ev_feed_event (EV_A_ events [i], type);
232	}	382	}
233		383
234	static void	384	inline void
235	fd_event (int fd, int events)	385	fd_event (EV_P_ int fd, int revents)
236	{	386	{
237	ANFD *anfd = anfds + fd;	387	ANFD *anfd = anfds + fd;
238	struct ev_io *w;	388	struct ev_io *w;
239		389
240	for (w = anfd->head; w; w = w->next)	390	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
241	{	391	{
242	int ev = w->events & events;	392	int ev = w->events & revents;
243		393
244	if (ev)	394	if (ev)
245	event ((W)w, ev);	395	ev_feed_event (EV_A_ (W)w, ev);
246	}	396	}
		397	}
		398
		399	void
		400	ev_feed_fd_event (EV_P_ int fd, int revents)
		401	{
		402	fd_event (EV_A_ fd, revents);
247	}	403	}
248		404
249	/*****************************************************************************/	405	/*****************************************************************************/
250		406
251	static int *fdchanges;
252	static int fdchangemax, fdchangecnt;
253
254	static void	407	static void
255	fd_reify (void)	408	fd_reify (EV_P)
256	{	409	{
257	int i;	410	int i;
258		411
259	for (i = 0; i < fdchangecnt; ++i)	412	for (i = 0; i < fdchangecnt; ++i)
260	{	413	{
…		…
262	ANFD *anfd = anfds + fd;	415	ANFD *anfd = anfds + fd;
263	struct ev_io *w;	416	struct ev_io *w;
264		417
265	int events = 0;	418	int events = 0;
266		419
267	for (w = anfd->head; w; w = w->next)	420	for (w = (struct ev_io )anfd->head; w; w = (struct ev_io )((WL)w)->next)
268	events \|= w->events;	421	events \|= w->events;
269		422
		423	#if EV_SELECT_IS_WINSOCKET
		424	if (events)
		425	{
		426	unsigned long argp;
		427	anfd->handle = _get_osfhandle (fd);
		428	assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0));
		429	}
		430	#endif
		431
270	anfd->reify = 0;	432	anfd->reify = 0;
271		433
272	if (anfd->events != events)
273	{
274	method_modify (fd, anfd->events, events);	434	method_modify (EV_A_ fd, anfd->events, events);
275	anfd->events = events;	435	anfd->events = events;
276	}
277	}	436	}
278		437
279	fdchangecnt = 0;	438	fdchangecnt = 0;
280	}	439	}
281		440
282	static void	441	static void
283	fd_change (int fd)	442	fd_change (EV_P_ int fd)
284	{	443	{
285	if (anfds [fd].reify \|\| fdchangecnt < 0)	444	if (anfds [fd].reify)
286	return;	445	return;
287		446
288	anfds [fd].reify = 1;	447	anfds [fd].reify = 1;
289		448
290	++fdchangecnt;	449	++fdchangecnt;
291	array_needsize (fdchanges, fdchangemax, fdchangecnt, );	450	array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void));
292	fdchanges [fdchangecnt - 1] = fd;	451	fdchanges [fdchangecnt - 1] = fd;
293	}	452	}
294		453
295	static void	454	static void
296	fd_kill (int fd)	455	fd_kill (EV_P_ int fd)
297	{	456	{
298	struct ev_io *w;	457	struct ev_io *w;
299		458
300	printf ("killing fd %d\n", fd);//D
301	while ((w = anfds [fd].head))	459	while ((w = (struct ev_io *)anfds [fd].head))
302	{	460	{
303	ev_io_stop (w);	461	ev_io_stop (EV_A_ w);
304	event ((W)w, EV_ERROR \| EV_READ \| EV_WRITE);	462	ev_feed_event (EV_A_ (W)w, EV_ERROR \| EV_READ \| EV_WRITE);
305	}	463	}
		464	}
		465
		466	static int
		467	fd_valid (int fd)
		468	{
		469	#ifdef _WIN32
		470	return _get_osfhandle (fd) != -1;
		471	#else
		472	return fcntl (fd, F_GETFD) != -1;
		473	#endif
306	}	474	}
307		475
308	/* called on EBADF to verify fds */	476	/* called on EBADF to verify fds */
309	static void	477	static void
310	fd_ebadf (void)	478	fd_ebadf (EV_P)
311	{	479	{
312	int fd;	480	int fd;
313		481
314	for (fd = 0; fd < anfdmax; ++fd)	482	for (fd = 0; fd < anfdmax; ++fd)
315	if (anfds [fd].events)	483	if (anfds [fd].events)
316	if (fcntl (fd, F_GETFD) == -1 && errno == EBADF)	484	if (!fd_valid (fd) == -1 && errno == EBADF)
317	fd_kill (fd);	485	fd_kill (EV_A_ fd);
318	}	486	}
319		487
320	/* called on ENOMEM in select/poll to kill some fds and retry */	488	/* called on ENOMEM in select/poll to kill some fds and retry */
321	static void	489	static void
322	fd_enomem (void)	490	fd_enomem (EV_P)
323	{	491	{
324	int fd = anfdmax;	492	int fd;
325		493
326	while (fd--)	494	for (fd = anfdmax; fd--; )
327	if (anfds [fd].events)	495	if (anfds [fd].events)
328	{	496	{
329	close (fd);
330	fd_kill (fd);	497	fd_kill (EV_A_ fd);
331	return;	498	return;
332	}	499	}
333	}	500	}
334		501
		502	/* usually called after fork if method needs to re-arm all fds from scratch */
		503	static void
		504	fd_rearm_all (EV_P)
		505	{
		506	int fd;
		507
		508	/* this should be highly optimised to not do anything but set a flag */
		509	for (fd = 0; fd < anfdmax; ++fd)
		510	if (anfds [fd].events)
		511	{
		512	anfds [fd].events = 0;
		513	fd_change (EV_A_ fd);
		514	}
		515	}
		516
335	/*****************************************************************************/	517	/*****************************************************************************/
336		518
337	static struct ev_timer **timers;
338	static int timermax, timercnt;
339
340	static struct ev_periodic **periodics;
341	static int periodicmax, periodiccnt;
342
343	static void	519	static void
344	upheap (WT *timers, int k)	520	upheap (WT *heap, int k)
345	{	521	{
346	WT w = timers [k];	522	WT w = heap [k];
347		523
348	while (k && timers [k >> 1]->at > w->at)	524	while (k && heap [k >> 1]->at > w->at)
349	{	525	{
350	timers [k] = timers [k >> 1];	526	heap [k] = heap [k >> 1];
351	timers [k]->active = k + 1;	527	((W)heap [k])->active = k + 1;
352	k >>= 1;	528	k >>= 1;
353	}	529	}
354		530
355	timers [k] = w;	531	heap [k] = w;
356	timers [k]->active = k + 1;	532	((W)heap [k])->active = k + 1;
357		533
358	}	534	}
359		535
360	static void	536	static void
361	downheap (WT *timers, int N, int k)	537	downheap (WT *heap, int N, int k)
362	{	538	{
363	WT w = timers [k];	539	WT w = heap [k];
364		540
365	while (k < (N >> 1))	541	while (k < (N >> 1))
366	{	542	{
367	int j = k << 1;	543	int j = k << 1;
368		544
369	if (j + 1 < N && timers [j]->at > timers [j + 1]->at)	545	if (j + 1 < N && heap [j]->at > heap [j + 1]->at)
370	++j;	546	++j;
371		547
372	if (w->at <= timers [j]->at)	548	if (w->at <= heap [j]->at)
373	break;	549	break;
374		550
375	timers [k] = timers [j];	551	heap [k] = heap [j];
376	timers [k]->active = k + 1;	552	((W)heap [k])->active = k + 1;
377	k = j;	553	k = j;
378	}	554	}
379		555
380	timers [k] = w;	556	heap [k] = w;
381	timers [k]->active = k + 1;	557	((W)heap [k])->active = k + 1;
		558	}
		559
		560	inline void
		561	adjustheap (WT *heap, int N, int k)
		562	{
		563	upheap (heap, k);
		564	downheap (heap, N, k);
382	}	565	}
383		566
384	/*****************************************************************************/	567	/*****************************************************************************/
385		568
386	typedef struct	569	typedef struct
387	{	570	{
388	struct ev_signal *head;	571	WL head;
389	sig_atomic_t volatile gotsig;	572	sig_atomic_t volatile gotsig;
390	} ANSIG;	573	} ANSIG;
391		574
392	static ANSIG *signals;	575	static ANSIG *signals;
393	static int signalmax;	576	static int signalmax;
…		…
409	}	592	}
410		593
411	static void	594	static void
412	sighandler (int signum)	595	sighandler (int signum)
413	{	596	{
		597	#if _WIN32
		598	signal (signum, sighandler);
		599	#endif
		600
414	signals [signum - 1].gotsig = 1;	601	signals [signum - 1].gotsig = 1;
415		602
416	if (!gotsig)	603	if (!gotsig)
417	{	604	{
418	int old_errno = errno;	605	int old_errno = errno;
…		…
420	write (sigpipe [1], &signum, 1);	607	write (sigpipe [1], &signum, 1);
421	errno = old_errno;	608	errno = old_errno;
422	}	609	}
423	}	610	}
424		611
		612	void
		613	ev_feed_signal_event (EV_P_ int signum)
		614	{
		615	WL w;
		616
		617	#if EV_MULTIPLICITY
		618	assert (("feeding signal events is only supported in the default loop", loop == default_loop));
		619	#endif
		620
		621	--signum;
		622
		623	if (signum < 0 \|\| signum >= signalmax)
		624	return;
		625
		626	signals [signum].gotsig = 0;
		627
		628	for (w = signals [signum].head; w; w = w->next)
		629	ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
		630	}
		631
425	static void	632	static void
426	sigcb (struct ev_io *iow, int revents)	633	sigcb (EV_P_ struct ev_io *iow, int revents)
427	{	634	{
428	struct ev_signal *w;
429	int signum;	635	int signum;
430		636
431	read (sigpipe [0], &revents, 1);	637	read (sigpipe [0], &revents, 1);
432	gotsig = 0;	638	gotsig = 0;
433		639
434	for (signum = signalmax; signum--; )	640	for (signum = signalmax; signum--; )
435	if (signals [signum].gotsig)	641	if (signals [signum].gotsig)
436	{	642	ev_feed_signal_event (EV_A_ signum + 1);
437	signals [signum].gotsig = 0;
438
439	for (w = signals [signum].head; w; w = w->next)
440	event ((W)w, EV_SIGNAL);
441	}
442	}	643	}
443		644
444	static void	645	inline void
445	siginit (void)	646	fd_intern (int fd)
446	{	647	{
447	#ifndef WIN32	648	#ifdef _WIN32
		649	int arg = 1;
		650	ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
		651	#else
448	fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC);	652	fcntl (fd, F_SETFD, FD_CLOEXEC);
449	fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC);
450
451	/* rather than sort out wether we really need nb, set it */
452	fcntl (sigpipe [0], F_SETFL, O_NONBLOCK);	653	fcntl (fd, F_SETFL, O_NONBLOCK);
453	fcntl (sigpipe [1], F_SETFL, O_NONBLOCK);
454	#endif	654	#endif
		655	}
		656
		657	static void
		658	siginit (EV_P)
		659	{
		660	fd_intern (sigpipe [0]);
		661	fd_intern (sigpipe [1]);
455		662
456	ev_io_set (&sigev, sigpipe [0], EV_READ);	663	ev_io_set (&sigev, sigpipe [0], EV_READ);
457	ev_io_start (&sigev);	664	ev_io_start (EV_A_ &sigev);
		665	ev_unref (EV_A); /* child watcher should not keep loop alive */
458	}	666	}
459		667
460	/*****************************************************************************/	668	/*****************************************************************************/
461		669
462	static struct ev_idle **idles;
463	static int idlemax, idlecnt;
464
465	static struct ev_prepare **prepares;
466	static int preparemax, preparecnt;
467
468	static struct ev_check **checks;
469	static int checkmax, checkcnt;
470
471	/*****************************************************************************/
472
473	static struct ev_child *childs [PID_HASHSIZE];	670	static struct ev_child *childs [PID_HASHSIZE];
		671
		672	#ifndef _WIN32
		673
474	static struct ev_signal childev;	674	static struct ev_signal childev;
475
476	#ifndef WIN32
477		675
478	#ifndef WCONTINUED	676	#ifndef WCONTINUED
479	# define WCONTINUED 0	677	# define WCONTINUED 0
480	#endif	678	#endif
481		679
482	static void	680	static void
483	child_reap (struct ev_signal *sw, int chain, int pid, int status)	681	child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status)
484	{	682	{
485	struct ev_child *w;	683	struct ev_child *w;
486		684
487	for (w = childs [chain & (PID_HASHSIZE - 1)]; w; w = w->next)	685	for (w = (struct ev_child )childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child )((WL)w)->next)
488	if (w->pid == pid \|\| !w->pid)	686	if (w->pid == pid \|\| !w->pid)
489	{	687	{
490	w->priority = sw->priority; /* need to do it now */	688	ev_priority (w) = ev_priority (sw); /* need to do it now */
491	w->rpid = pid;	689	w->rpid = pid;
492	w->rstatus = status;	690	w->rstatus = status;
493	printf ("rpid %p %d %d\n", w, pid, w->pid);//D
494	event ((W)w, EV_CHILD);	691	ev_feed_event (EV_A_ (W)w, EV_CHILD);
495	}	692	}
496	}	693	}
497		694
498	static void	695	static void
499	childcb (struct ev_signal *sw, int revents)	696	childcb (EV_P_ struct ev_signal *sw, int revents)
500	{	697	{
501	int pid, status;	698	int pid, status;
502		699
503	printf ("chld %x\n", revents);//D
504	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))	700	if (0 < (pid = waitpid (-1, &status, WNOHANG \| WUNTRACED \| WCONTINUED)))
505	{	701	{
506	/* make sure we are called again until all childs have been reaped */	702	/* make sure we are called again until all childs have been reaped */
507	event ((W)sw, EV_SIGNAL);	703	ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
508		704
509	child_reap (sw, pid, pid, status);	705	child_reap (EV_A_ sw, pid, pid, status);
510	child_reap (sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */	706	child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */
511	}	707	}
512	}	708	}
513		709
514	#endif	710	#endif
515		711
…		…
540	return EV_VERSION_MINOR;	736	return EV_VERSION_MINOR;
541	}	737	}
542		738
543	/* return true if we are running with elevated privileges and should ignore env variables */	739	/* return true if we are running with elevated privileges and should ignore env variables */
544	static int	740	static int
545	enable_secure ()	741	enable_secure (void)
546	{	742	{
547	#ifdef WIN32	743	#ifdef _WIN32
548	return 0;	744	return 0;
549	#else	745	#else
550	return getuid () != geteuid ()	746	return getuid () != geteuid ()
551	\|\| getgid () != getegid ();	747	\|\| getgid () != getegid ();
552	#endif	748	#endif
553	}	749	}
554		750
555	int ev_init (int methods)	751	int
		752	ev_method (EV_P)
556	{	753	{
		754	return method;
		755	}
		756
		757	static void
		758	loop_init (EV_P_ int methods)
		759	{
557	if (!ev_method)	760	if (!method)
558	{	761	{
559	#if EV_USE_MONOTONIC	762	#if EV_USE_MONOTONIC
560	{	763	{
561	struct timespec ts;	764	struct timespec ts;
562	if (!clock_gettime (CLOCK_MONOTONIC, &ts))	765	if (!clock_gettime (CLOCK_MONOTONIC, &ts))
563	have_monotonic = 1;	766	have_monotonic = 1;
564	}	767	}
565	#endif	768	#endif
566		769
567	ev_now = ev_time ();	770	ev_rt_now = ev_time ();
568	now = get_clock ();	771	mn_now = get_clock ();
569	now_floor = now;	772	now_floor = mn_now;
570	diff = ev_now - now;	773	rtmn_diff = ev_rt_now - mn_now;
571
572	if (pipe (sigpipe))
573	return 0;
574		774
575	if (methods == EVMETHOD_AUTO)	775	if (methods == EVMETHOD_AUTO)
576	if (!enable_secure () && getenv ("LIBEV_METHODS"))	776	if (!enable_secure () && getenv ("LIBEV_METHODS"))
577	methods = atoi (getenv ("LIBEV_METHODS"));	777	methods = atoi (getenv ("LIBEV_METHODS"));
578	else	778	else
579	methods = EVMETHOD_ANY;	779	methods = EVMETHOD_ANY;
580		780
581	ev_method = 0;	781	method = 0;
582	#if EV_USE_KQUEUE	782	#if EV_USE_KQUEUE
583	if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods);	783	if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods);
584	#endif	784	#endif
585	#if EV_USE_EPOLL	785	#if EV_USE_EPOLL
586	if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods);	786	if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods);
587	#endif	787	#endif
588	#if EV_USE_POLL	788	#if EV_USE_POLL
589	if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods);	789	if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods);
590	#endif	790	#endif
591	#if EV_USE_SELECT	791	#if EV_USE_SELECT
592	if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods);	792	if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods);
593	#endif	793	#endif
594		794
		795	ev_init (&sigev, sigcb);
		796	ev_set_priority (&sigev, EV_MAXPRI);
		797	}
		798	}
		799
		800	void
		801	loop_destroy (EV_P)
		802	{
		803	int i;
		804
		805	#if EV_USE_KQUEUE
		806	if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A);
		807	#endif
		808	#if EV_USE_EPOLL
		809	if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A);
		810	#endif
		811	#if EV_USE_POLL
		812	if (method == EVMETHOD_POLL ) poll_destroy (EV_A);
		813	#endif
		814	#if EV_USE_SELECT
		815	if (method == EVMETHOD_SELECT) select_destroy (EV_A);
		816	#endif
		817
		818	for (i = NUMPRI; i--; )
		819	array_free (pending, [i]);
		820
		821	/* have to use the microsoft-never-gets-it-right macro */
		822	array_free (fdchange, EMPTY);
		823	array_free (timer, EMPTY);
		824	#if EV_PERIODICS
		825	array_free (periodic, EMPTY);
		826	#endif
		827	array_free (idle, EMPTY);
		828	array_free (prepare, EMPTY);
		829	array_free (check, EMPTY);
		830
		831	method = 0;
		832	}
		833
		834	static void
		835	loop_fork (EV_P)
		836	{
		837	#if EV_USE_EPOLL
		838	if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A);
		839	#endif
		840	#if EV_USE_KQUEUE
		841	if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A);
		842	#endif
		843
		844	if (ev_is_active (&sigev))
		845	{
		846	/* default loop */
		847
		848	ev_ref (EV_A);
		849	ev_io_stop (EV_A_ &sigev);
		850	close (sigpipe [0]);
		851	close (sigpipe [1]);
		852
		853	while (pipe (sigpipe))
		854	syserr ("(libev) error creating pipe");
		855
		856	siginit (EV_A);
		857	}
		858
		859	postfork = 0;
		860	}
		861
		862	#if EV_MULTIPLICITY
		863	struct ev_loop *
		864	ev_loop_new (int methods)
		865	{
		866	struct ev_loop loop = (struct ev_loop )ev_malloc (sizeof (struct ev_loop));
		867
		868	memset (loop, 0, sizeof (struct ev_loop));
		869
		870	loop_init (EV_A_ methods);
		871
		872	if (ev_method (EV_A))
		873	return loop;
		874
		875	return 0;
		876	}
		877
		878	void
		879	ev_loop_destroy (EV_P)
		880	{
		881	loop_destroy (EV_A);
		882	ev_free (loop);
		883	}
		884
		885	void
		886	ev_loop_fork (EV_P)
		887	{
		888	postfork = 1;
		889	}
		890
		891	#endif
		892
		893	#if EV_MULTIPLICITY
		894	struct ev_loop *
		895	#else
		896	int
		897	#endif
		898	ev_default_loop (int methods)
		899	{
		900	if (sigpipe [0] == sigpipe [1])
		901	if (pipe (sigpipe))
		902	return 0;
		903
		904	if (!default_loop)
		905	{
		906	#if EV_MULTIPLICITY
		907	struct ev_loop *loop = default_loop = &default_loop_struct;
		908	#else
		909	default_loop = 1;
		910	#endif
		911
		912	loop_init (EV_A_ methods);
		913
595	if (ev_method)	914	if (ev_method (EV_A))
596	{	915	{
597	ev_watcher_init (&sigev, sigcb);
598	ev_set_priority (&sigev, EV_MAXPRI);
599	siginit ();	916	siginit (EV_A);
600		917
601	#ifndef WIN32	918	#ifndef _WIN32
602	ev_signal_init (&childev, childcb, SIGCHLD);	919	ev_signal_init (&childev, childcb, SIGCHLD);
603	ev_set_priority (&childev, EV_MAXPRI);	920	ev_set_priority (&childev, EV_MAXPRI);
604	ev_signal_start (&childev);	921	ev_signal_start (EV_A_ &childev);
		922	ev_unref (EV_A); /* child watcher should not keep loop alive */
605	#endif	923	#endif
606	}	924	}
		925	else
		926	default_loop = 0;
607	}	927	}
608		928
609	return ev_method;	929	return default_loop;
		930	}
		931
		932	void
		933	ev_default_destroy (void)
		934	{
		935	#if EV_MULTIPLICITY
		936	struct ev_loop *loop = default_loop;
		937	#endif
		938
		939	#ifndef _WIN32
		940	ev_ref (EV_A); /* child watcher */
		941	ev_signal_stop (EV_A_ &childev);
		942	#endif
		943
		944	ev_ref (EV_A); /* signal watcher */
		945	ev_io_stop (EV_A_ &sigev);
		946
		947	close (sigpipe [0]); sigpipe [0] = 0;
		948	close (sigpipe [1]); sigpipe [1] = 0;
		949
		950	loop_destroy (EV_A);
		951	}
		952
		953	void
		954	ev_default_fork (void)
		955	{
		956	#if EV_MULTIPLICITY
		957	struct ev_loop *loop = default_loop;
		958	#endif
		959
		960	if (method)
		961	postfork = 1;
610	}	962	}
611		963
612	/*****************************************************************************/	964	/*****************************************************************************/
613		965
614	void
615	ev_fork_prepare (void)
616	{
617	/* nop */
618	}
619
620	void
621	ev_fork_parent (void)
622	{
623	/* nop */
624	}
625
626	void
627	ev_fork_child (void)
628	{
629	#if EV_USE_EPOLL
630	if (ev_method == EVMETHOD_EPOLL)
631	epoll_postfork_child ();
632	#endif
633
634	ev_io_stop (&sigev);
635	close (sigpipe [0]);
636	close (sigpipe [1]);
637	pipe (sigpipe);
638	siginit ();
639	}
640
641	/*****************************************************************************/
642
643	static void	966	static int
		967	any_pending (EV_P)
		968	{
		969	int pri;
		970
		971	for (pri = NUMPRI; pri--; )
		972	if (pendingcnt [pri])
		973	return 1;
		974
		975	return 0;
		976	}
		977
		978	static void
644	call_pending (void)	979	call_pending (EV_P)
645	{	980	{
646	int pri;	981	int pri;
647		982
648	for (pri = NUMPRI; pri--; )	983	for (pri = NUMPRI; pri--; )
649	while (pendingcnt [pri])	984	while (pendingcnt [pri])
…		…
651	ANPENDING *p = pendings [pri] + --pendingcnt [pri];	986	ANPENDING *p = pendings [pri] + --pendingcnt [pri];
652		987
653	if (p->w)	988	if (p->w)
654	{	989	{
655	p->w->pending = 0;	990	p->w->pending = 0;
656	p->w->cb (p->w, p->events);	991	EV_CB_INVOKE (p->w, p->events);
657	}	992	}
658	}	993	}
659	}	994	}
660		995
661	static void	996	static void
662	timers_reify (void)	997	timers_reify (EV_P)
663	{	998	{
664	while (timercnt && timers [0]->at <= now)	999	while (timercnt && ((WT)timers [0])->at <= mn_now)
665	{	1000	{
666	struct ev_timer *w = timers [0];	1001	struct ev_timer *w = timers [0];
		1002
		1003	assert (("inactive timer on timer heap detected", ev_is_active (w)));
667		1004
668	/* first reschedule or stop timer */	1005	/* first reschedule or stop timer */
669	if (w->repeat)	1006	if (w->repeat)
670	{	1007	{
671	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));	1008	assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.));
		1009
672	w->at = now + w->repeat;	1010	((WT)w)->at += w->repeat;
		1011	if (((WT)w)->at < mn_now)
		1012	((WT)w)->at = mn_now;
		1013
673	downheap ((WT *)timers, timercnt, 0);	1014	downheap ((WT *)timers, timercnt, 0);
674	}	1015	}
675	else	1016	else
676	ev_timer_stop (w); /* nonrepeating: stop timer */	1017	ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */
677		1018
678	event ((W)w, EV_TIMEOUT);	1019	ev_feed_event (EV_A_ (W)w, EV_TIMEOUT);
679	}	1020	}
680	}	1021	}
681		1022
		1023	#if EV_PERIODICS
682	static void	1024	static void
683	periodics_reify (void)	1025	periodics_reify (EV_P)
684	{	1026	{
685	while (periodiccnt && periodics [0]->at <= ev_now)	1027	while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now)
686	{	1028	{
687	struct ev_periodic *w = periodics [0];	1029	struct ev_periodic *w = periodics [0];
688		1030
		1031	assert (("inactive timer on periodic heap detected", ev_is_active (w)));
		1032
689	/* first reschedule or stop timer */	1033	/* first reschedule or stop timer */
690	if (w->interval)	1034	if (w->reschedule_cb)
691	{	1035	{
		1036	ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001);
		1037
		1038	assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now));
		1039	downheap ((WT *)periodics, periodiccnt, 0);
		1040	}
		1041	else if (w->interval)
		1042	{
692	w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval;	1043	((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval;
693	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now));	1044	assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now));
694	downheap ((WT *)periodics, periodiccnt, 0);	1045	downheap ((WT *)periodics, periodiccnt, 0);
695	}	1046	}
696	else	1047	else
697	ev_periodic_stop (w); /* nonrepeating: stop timer */	1048	ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
698		1049
699	event ((W)w, EV_PERIODIC);	1050	ev_feed_event (EV_A_ (W)w, EV_PERIODIC);
700	}	1051	}
701	}	1052	}
702		1053
703	static void	1054	static void
704	periodics_reschedule (ev_tstamp diff)	1055	periodics_reschedule (EV_P)
705	{	1056	{
706	int i;	1057	int i;
707		1058
708	/* adjust periodics after time jump */	1059	/* adjust periodics after time jump */
709	for (i = 0; i < periodiccnt; ++i)	1060	for (i = 0; i < periodiccnt; ++i)
710	{	1061	{
711	struct ev_periodic *w = periodics [i];	1062	struct ev_periodic *w = periodics [i];
712		1063
		1064	if (w->reschedule_cb)
		1065	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
713	if (w->interval)	1066	else if (w->interval)
714	{
715	ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval;	1067	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
716
717	if (fabs (diff) >= 1e-4)
718	{
719	ev_periodic_stop (w);
720	ev_periodic_start (w);
721
722	i = 0; /* restart loop, inefficient, but time jumps should be rare */
723	}
724	}
725	}	1068	}
726	}
727		1069
728	static int	1070	/* now rebuild the heap */
		1071	for (i = periodiccnt >> 1; i--; )
		1072	downheap ((WT *)periodics, periodiccnt, i);
		1073	}
		1074	#endif
		1075
		1076	inline int
729	time_update_monotonic (void)	1077	time_update_monotonic (EV_P)
730	{	1078	{
731	now = get_clock ();	1079	mn_now = get_clock ();
732		1080
733	if (expect_true (now - now_floor < MIN_TIMEJUMP * .5))	1081	if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5))
734	{	1082	{
735	ev_now = now + diff;	1083	ev_rt_now = rtmn_diff + mn_now;
736	return 0;	1084	return 0;
737	}	1085	}
738	else	1086	else
739	{	1087	{
740	now_floor = now;	1088	now_floor = mn_now;
741	ev_now = ev_time ();	1089	ev_rt_now = ev_time ();
742	return 1;	1090	return 1;
743	}	1091	}
744	}	1092	}
745		1093
746	static void	1094	static void
747	time_update (void)	1095	time_update (EV_P)
748	{	1096	{
749	int i;	1097	int i;
750		1098
751	#if EV_USE_MONOTONIC	1099	#if EV_USE_MONOTONIC
752	if (expect_true (have_monotonic))	1100	if (expect_true (have_monotonic))
753	{	1101	{
754	if (time_update_monotonic ())	1102	if (time_update_monotonic (EV_A))
755	{	1103	{
756	ev_tstamp odiff = diff;	1104	ev_tstamp odiff = rtmn_diff;
757		1105
758	for (i = 4; --i; ) /* loop a few times, before making important decisions */	1106	for (i = 4; --i; ) /* loop a few times, before making important decisions */
759	{	1107	{
760	diff = ev_now - now;	1108	rtmn_diff = ev_rt_now - mn_now;
761		1109
762	if (fabs (odiff - diff) < MIN_TIMEJUMP)	1110	if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)
763	return; /* all is well */	1111	return; /* all is well */
764		1112
765	ev_now = ev_time ();	1113	ev_rt_now = ev_time ();
766	now = get_clock ();	1114	mn_now = get_clock ();
767	now_floor = now;	1115	now_floor = mn_now;
768	}	1116	}
769		1117
		1118	# if EV_PERIODICS
770	periodics_reschedule (diff - odiff);	1119	periodics_reschedule (EV_A);
		1120	# endif
771	/* no timer adjustment, as the monotonic clock doesn't jump */	1121	/* no timer adjustment, as the monotonic clock doesn't jump */
		1122	/* timers_reschedule (EV_A_ rtmn_diff - odiff) */
772	}	1123	}
773	}	1124	}
774	else	1125	else
775	#endif	1126	#endif
776	{	1127	{
777	ev_now = ev_time ();	1128	ev_rt_now = ev_time ();
778		1129
779	if (expect_false (now > ev_now \|\| now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP))	1130	if (expect_false (mn_now > ev_rt_now \|\| mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP))
780	{	1131	{
		1132	#if EV_PERIODICS
781	periodics_reschedule (ev_now - now);	1133	periodics_reschedule (EV_A);
		1134	#endif
782		1135
783	/* adjust timers. this is easy, as the offset is the same for all */	1136	/* adjust timers. this is easy, as the offset is the same for all */
784	for (i = 0; i < timercnt; ++i)	1137	for (i = 0; i < timercnt; ++i)
785	timers [i]->at += diff;	1138	((WT)timers [i])->at += ev_rt_now - mn_now;
786	}	1139	}
787		1140
788	now = ev_now;	1141	mn_now = ev_rt_now;
789	}	1142	}
790	}	1143	}
791		1144
792	int ev_loop_done;	1145	void
		1146	ev_ref (EV_P)
		1147	{
		1148	++activecnt;
		1149	}
793		1150
		1151	void
		1152	ev_unref (EV_P)
		1153	{
		1154	--activecnt;
		1155	}
		1156
		1157	static int loop_done;
		1158
		1159	void
794	void ev_loop (int flags)	1160	ev_loop (EV_P_ int flags)
795	{	1161	{
796	double block;	1162	double block;
797	ev_loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;	1163	loop_done = flags & (EVLOOP_ONESHOT \| EVLOOP_NONBLOCK) ? 1 : 0;
798		1164
799	do	1165	do
800	{	1166	{
801	/* queue check watchers (and execute them) */	1167	/* queue check watchers (and execute them) */
802	if (expect_false (preparecnt))	1168	if (expect_false (preparecnt))
803	{	1169	{
804	queue_events ((W *)prepares, preparecnt, EV_PREPARE);	1170	queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
805	call_pending ();	1171	call_pending (EV_A);
806	}	1172	}
807		1173
		1174	/* we might have forked, so reify kernel state if necessary */
		1175	if (expect_false (postfork))
		1176	loop_fork (EV_A);
		1177
808	/* update fd-related kernel structures */	1178	/* update fd-related kernel structures */
809	fd_reify ();	1179	fd_reify (EV_A);
810		1180
811	/* calculate blocking time */	1181	/* calculate blocking time */
812		1182
813	/* we only need this for !monotonic clockor timers, but as we basically	1183	/* we only need this for !monotonic clock or timers, but as we basically
814	always have timers, we just calculate it always */	1184	always have timers, we just calculate it always */
815	#if EV_USE_MONOTONIC	1185	#if EV_USE_MONOTONIC
816	if (expect_true (have_monotonic))	1186	if (expect_true (have_monotonic))
817	time_update_monotonic ();	1187	time_update_monotonic (EV_A);
818	else	1188	else
819	#endif	1189	#endif
820	{	1190	{
821	ev_now = ev_time ();	1191	ev_rt_now = ev_time ();
822	now = ev_now;	1192	mn_now = ev_rt_now;
823	}	1193	}
824		1194
825	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)	1195	if (flags & EVLOOP_NONBLOCK \|\| idlecnt)
826	block = 0.;	1196	block = 0.;
827	else	1197	else
828	{	1198	{
829	block = MAX_BLOCKTIME;	1199	block = MAX_BLOCKTIME;
830		1200
831	if (timercnt)	1201	if (timercnt)
832	{	1202	{
833	ev_tstamp to = timers [0]->at - now + method_fudge;	1203	ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge;
834	if (block > to) block = to;	1204	if (block > to) block = to;
835	}	1205	}
836		1206
		1207	#if EV_PERIODICS
837	if (periodiccnt)	1208	if (periodiccnt)
838	{	1209	{
839	ev_tstamp to = periodics [0]->at - ev_now + method_fudge;	1210	ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge;
840	if (block > to) block = to;	1211	if (block > to) block = to;
841	}	1212	}
		1213	#endif
842		1214
843	if (block < 0.) block = 0.;	1215	if (block < 0.) block = 0.;
844	}	1216	}
845		1217
846	method_poll (block);	1218	method_poll (EV_A_ block);
847		1219
848	/* update ev_now, do magic */	1220	/* update ev_rt_now, do magic */
849	time_update ();	1221	time_update (EV_A);
850		1222
851	/* queue pending timers and reschedule them */	1223	/* queue pending timers and reschedule them */
852	timers_reify (); /* relative timers called last */	1224	timers_reify (EV_A); /* relative timers called last */
		1225	#if EV_PERIODICS
853	periodics_reify (); /* absolute timers called first */	1226	periodics_reify (EV_A); /* absolute timers called first */
		1227	#endif
854		1228
855	/* queue idle watchers unless io or timers are pending */	1229	/* queue idle watchers unless io or timers are pending */
856	if (!pendingcnt)	1230	if (idlecnt && !any_pending (EV_A))
857	queue_events ((W *)idles, idlecnt, EV_IDLE);	1231	queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE);
858		1232
859	/* queue check watchers, to be executed first */	1233	/* queue check watchers, to be executed first */
860	if (checkcnt)	1234	if (checkcnt)
861	queue_events ((W *)checks, checkcnt, EV_CHECK);	1235	queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
862		1236
863	call_pending ();	1237	call_pending (EV_A);
864	}	1238	}
865	while (!ev_loop_done);	1239	while (activecnt && !loop_done);
866		1240
867	if (ev_loop_done != 2)	1241	if (loop_done != 2)
868	ev_loop_done = 0;	1242	loop_done = 0;
		1243	}
		1244
		1245	void
		1246	ev_unloop (EV_P_ int how)
		1247	{
		1248	loop_done = how;
869	}	1249	}
870		1250
871	/*****************************************************************************/	1251	/*****************************************************************************/
872		1252
873	static void	1253	inline void
874	wlist_add (WL *head, WL elem)	1254	wlist_add (WL *head, WL elem)
875	{	1255	{
876	elem->next = *head;	1256	elem->next = *head;
877	*head = elem;	1257	*head = elem;
878	}	1258	}
879		1259
880	static void	1260	inline void
881	wlist_del (WL *head, WL elem)	1261	wlist_del (WL *head, WL elem)
882	{	1262	{
883	while (*head)	1263	while (*head)
884	{	1264	{
885	if (*head == elem)	1265	if (*head == elem)
…		…
890		1270
891	head = &(*head)->next;	1271	head = &(*head)->next;
892	}	1272	}
893	}	1273	}
894		1274
895	static void	1275	inline void
896	ev_clear_pending (W w)	1276	ev_clear_pending (EV_P_ W w)
897	{	1277	{
898	if (w->pending)	1278	if (w->pending)
899	{	1279	{
900	pendings [ABSPRI (w)][w->pending - 1].w = 0;	1280	pendings [ABSPRI (w)][w->pending - 1].w = 0;
901	w->pending = 0;	1281	w->pending = 0;
902	}	1282	}
903	}	1283	}
904		1284
905	static void	1285	inline void
906	ev_start (W w, int active)	1286	ev_start (EV_P_ W w, int active)
907	{	1287	{
908	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;	1288	if (w->priority < EV_MINPRI) w->priority = EV_MINPRI;
909	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;	1289	if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI;
910		1290
911	w->active = active;	1291	w->active = active;
		1292	ev_ref (EV_A);
912	}	1293	}
913		1294
914	static void	1295	inline void
915	ev_stop (W w)	1296	ev_stop (EV_P_ W w)
916	{	1297	{
		1298	ev_unref (EV_A);
917	w->active = 0;	1299	w->active = 0;
918	}	1300	}
919		1301
920	/*****************************************************************************/	1302	/*****************************************************************************/
921		1303
922	void	1304	void
923	ev_io_start (struct ev_io *w)	1305	ev_io_start (EV_P_ struct ev_io *w)
924	{	1306	{
925	int fd = w->fd;	1307	int fd = w->fd;
926		1308
927	if (ev_is_active (w))	1309	if (ev_is_active (w))
928	return;	1310	return;
929		1311
930	assert (("ev_io_start called with negative fd", fd >= 0));	1312	assert (("ev_io_start called with negative fd", fd >= 0));
931		1313
932	ev_start ((W)w, 1);	1314	ev_start (EV_A_ (W)w, 1);
933	array_needsize (anfds, anfdmax, fd + 1, anfds_init);	1315	array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init);
934	wlist_add ((WL *)&anfds[fd].head, (WL)w);	1316	wlist_add ((WL *)&anfds[fd].head, (WL)w);
935		1317
936	fd_change (fd);	1318	fd_change (EV_A_ fd);
937	}	1319	}
938		1320
939	void	1321	void
940	ev_io_stop (struct ev_io *w)	1322	ev_io_stop (EV_P_ struct ev_io *w)
941	{	1323	{
942	ev_clear_pending ((W)w);	1324	ev_clear_pending (EV_A_ (W)w);
943	if (!ev_is_active (w))	1325	if (!ev_is_active (w))
944	return;	1326	return;
945		1327
		1328	assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
		1329
946	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);	1330	wlist_del ((WL *)&anfds[w->fd].head, (WL)w);
947	ev_stop ((W)w);	1331	ev_stop (EV_A_ (W)w);
948		1332
949	fd_change (w->fd);	1333	fd_change (EV_A_ w->fd);
950	}	1334	}
951		1335
952	void	1336	void
953	ev_timer_start (struct ev_timer *w)	1337	ev_timer_start (EV_P_ struct ev_timer *w)
954	{	1338	{
955	if (ev_is_active (w))	1339	if (ev_is_active (w))
956	return;	1340	return;
957		1341
958	w->at += now;	1342	((WT)w)->at += mn_now;
959		1343
960	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));	1344	assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
961		1345
962	ev_start ((W)w, ++timercnt);	1346	ev_start (EV_A_ (W)w, ++timercnt);
963	array_needsize (timers, timermax, timercnt, );	1347	array_needsize (struct ev_timer *, timers, timermax, timercnt, (void));
964	timers [timercnt - 1] = w;	1348	timers [timercnt - 1] = w;
965	upheap ((WT *)timers, timercnt - 1);	1349	upheap ((WT *)timers, timercnt - 1);
966	}
967		1350
		1351	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1352	}
		1353
968	void	1354	void
969	ev_timer_stop (struct ev_timer *w)	1355	ev_timer_stop (EV_P_ struct ev_timer *w)
970	{	1356	{
971	ev_clear_pending ((W)w);	1357	ev_clear_pending (EV_A_ (W)w);
972	if (!ev_is_active (w))	1358	if (!ev_is_active (w))
973	return;	1359	return;
974		1360
		1361	assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));
		1362
975	if (w->active < timercnt--)	1363	if (((W)w)->active < timercnt--)
976	{	1364	{
977	timers [w->active - 1] = timers [timercnt];	1365	timers [((W)w)->active - 1] = timers [timercnt];
978	downheap ((WT *)timers, timercnt, w->active - 1);	1366	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
979	}	1367	}
980		1368
981	w->at = w->repeat;	1369	((WT)w)->at -= mn_now;
982		1370
983	ev_stop ((W)w);	1371	ev_stop (EV_A_ (W)w);
984	}	1372	}
985		1373
986	void	1374	void
987	ev_timer_again (struct ev_timer *w)	1375	ev_timer_again (EV_P_ struct ev_timer *w)
988	{	1376	{
989	if (ev_is_active (w))	1377	if (ev_is_active (w))
990	{	1378	{
991	if (w->repeat)	1379	if (w->repeat)
992	{	1380	{
993	w->at = now + w->repeat;	1381	((WT)w)->at = mn_now + w->repeat;
994	downheap ((WT *)timers, timercnt, w->active - 1);	1382	adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1);
995	}	1383	}
996	else	1384	else
997	ev_timer_stop (w);	1385	ev_timer_stop (EV_A_ w);
998	}	1386	}
999	else if (w->repeat)	1387	else if (w->repeat)
1000	ev_timer_start (w);	1388	ev_timer_start (EV_A_ w);
1001	}	1389	}
1002		1390
		1391	#if EV_PERIODICS
1003	void	1392	void
1004	ev_periodic_start (struct ev_periodic *w)	1393	ev_periodic_start (EV_P_ struct ev_periodic *w)
1005	{	1394	{
1006	if (ev_is_active (w))	1395	if (ev_is_active (w))
1007	return;	1396	return;
1008		1397
		1398	if (w->reschedule_cb)
		1399	((WT)w)->at = w->reschedule_cb (w, ev_rt_now);
		1400	else if (w->interval)
		1401	{
1009	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));	1402	assert (("ev_periodic_start called with negative interval value", w->interval >= 0.));
1010
1011	/* this formula differs from the one in periodic_reify because we do not always round up */	1403	/* this formula differs from the one in periodic_reify because we do not always round up */
1012	if (w->interval)
1013	w->at += ceil ((ev_now - w->at) / w->interval) * w->interval;	1404	((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval;
		1405	}
1014		1406
1015	ev_start ((W)w, ++periodiccnt);	1407	ev_start (EV_A_ (W)w, ++periodiccnt);
1016	array_needsize (periodics, periodicmax, periodiccnt, );	1408	array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void));
1017	periodics [periodiccnt - 1] = w;	1409	periodics [periodiccnt - 1] = w;
1018	upheap ((WT *)periodics, periodiccnt - 1);	1410	upheap ((WT *)periodics, periodiccnt - 1);
1019	}
1020		1411
		1412	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1413	}
		1414
1021	void	1415	void
1022	ev_periodic_stop (struct ev_periodic *w)	1416	ev_periodic_stop (EV_P_ struct ev_periodic *w)
1023	{	1417	{
1024	ev_clear_pending ((W)w);	1418	ev_clear_pending (EV_A_ (W)w);
1025	if (!ev_is_active (w))	1419	if (!ev_is_active (w))
1026	return;	1420	return;
1027		1421
		1422	assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));
		1423
1028	if (w->active < periodiccnt--)	1424	if (((W)w)->active < periodiccnt--)
1029	{	1425	{
1030	periodics [w->active - 1] = periodics [periodiccnt];	1426	periodics [((W)w)->active - 1] = periodics [periodiccnt];
1031	downheap ((WT *)periodics, periodiccnt, w->active - 1);	1427	adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1);
1032	}	1428	}
1033		1429
1034	ev_stop ((W)w);	1430	ev_stop (EV_A_ (W)w);
		1431	}
		1432
		1433	void
		1434	ev_periodic_again (EV_P_ struct ev_periodic *w)
		1435	{
		1436	/* TODO: use adjustheap and recalculation */
		1437	ev_periodic_stop (EV_A_ w);
		1438	ev_periodic_start (EV_A_ w);
		1439	}
		1440	#endif
		1441
		1442	void
		1443	ev_idle_start (EV_P_ struct ev_idle *w)
		1444	{
		1445	if (ev_is_active (w))
		1446	return;
		1447
		1448	ev_start (EV_A_ (W)w, ++idlecnt);
		1449	array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void));
		1450	idles [idlecnt - 1] = w;
		1451	}
		1452
		1453	void
		1454	ev_idle_stop (EV_P_ struct ev_idle *w)
		1455	{
		1456	ev_clear_pending (EV_A_ (W)w);
		1457	if (!ev_is_active (w))
		1458	return;
		1459
		1460	idles [((W)w)->active - 1] = idles [--idlecnt];
		1461	ev_stop (EV_A_ (W)w);
		1462	}
		1463
		1464	void
		1465	ev_prepare_start (EV_P_ struct ev_prepare *w)
		1466	{
		1467	if (ev_is_active (w))
		1468	return;
		1469
		1470	ev_start (EV_A_ (W)w, ++preparecnt);
		1471	array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void));
		1472	prepares [preparecnt - 1] = w;
		1473	}
		1474
		1475	void
		1476	ev_prepare_stop (EV_P_ struct ev_prepare *w)
		1477	{
		1478	ev_clear_pending (EV_A_ (W)w);
		1479	if (!ev_is_active (w))
		1480	return;
		1481
		1482	prepares [((W)w)->active - 1] = prepares [--preparecnt];
		1483	ev_stop (EV_A_ (W)w);
		1484	}
		1485
		1486	void
		1487	ev_check_start (EV_P_ struct ev_check *w)
		1488	{
		1489	if (ev_is_active (w))
		1490	return;
		1491
		1492	ev_start (EV_A_ (W)w, ++checkcnt);
		1493	array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void));
		1494	checks [checkcnt - 1] = w;
		1495	}
		1496
		1497	void
		1498	ev_check_stop (EV_P_ struct ev_check *w)
		1499	{
		1500	ev_clear_pending (EV_A_ (W)w);
		1501	if (!ev_is_active (w))
		1502	return;
		1503
		1504	checks [((W)w)->active - 1] = checks [--checkcnt];
		1505	ev_stop (EV_A_ (W)w);
1035	}	1506	}
1036		1507
1037	#ifndef SA_RESTART	1508	#ifndef SA_RESTART
1038	# define SA_RESTART 0	1509	# define SA_RESTART 0
1039	#endif	1510	#endif
1040		1511
1041	void	1512	void
1042	ev_signal_start (struct ev_signal *w)	1513	ev_signal_start (EV_P_ struct ev_signal *w)
1043	{	1514	{
		1515	#if EV_MULTIPLICITY
		1516	assert (("signal watchers are only supported in the default loop", loop == default_loop));
		1517	#endif
1044	if (ev_is_active (w))	1518	if (ev_is_active (w))
1045	return;	1519	return;
1046		1520
1047	assert (("ev_signal_start called with illegal signal number", w->signum > 0));	1521	assert (("ev_signal_start called with illegal signal number", w->signum > 0));
1048		1522
1049	ev_start ((W)w, 1);	1523	ev_start (EV_A_ (W)w, 1);
1050	array_needsize (signals, signalmax, w->signum, signals_init);	1524	array_needsize (ANSIG, signals, signalmax, w->signum, signals_init);
1051	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);	1525	wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w);
1052		1526
1053	if (!w->next)	1527	if (!((WL)w)->next)
1054	{	1528	{
		1529	#if _WIN32
		1530	signal (w->signum, sighandler);
		1531	#else
1055	struct sigaction sa;	1532	struct sigaction sa;
1056	sa.sa_handler = sighandler;	1533	sa.sa_handler = sighandler;
1057	sigfillset (&sa.sa_mask);	1534	sigfillset (&sa.sa_mask);
1058	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */	1535	sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
1059	sigaction (w->signum, &sa, 0);	1536	sigaction (w->signum, &sa, 0);
		1537	#endif
1060	}	1538	}
1061	}	1539	}
1062		1540
1063	void	1541	void
1064	ev_signal_stop (struct ev_signal *w)	1542	ev_signal_stop (EV_P_ struct ev_signal *w)
1065	{	1543	{
1066	ev_clear_pending ((W)w);	1544	ev_clear_pending (EV_A_ (W)w);
1067	if (!ev_is_active (w))	1545	if (!ev_is_active (w))
1068	return;	1546	return;
1069		1547
1070	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);	1548	wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w);
1071	ev_stop ((W)w);	1549	ev_stop (EV_A_ (W)w);
1072		1550
1073	if (!signals [w->signum - 1].head)	1551	if (!signals [w->signum - 1].head)
1074	signal (w->signum, SIG_DFL);	1552	signal (w->signum, SIG_DFL);
1075	}	1553	}
1076		1554
1077	void	1555	void
1078	ev_idle_start (struct ev_idle *w)	1556	ev_child_start (EV_P_ struct ev_child *w)
1079	{	1557	{
		1558	#if EV_MULTIPLICITY
		1559	assert (("child watchers are only supported in the default loop", loop == default_loop));
		1560	#endif
1080	if (ev_is_active (w))	1561	if (ev_is_active (w))
1081	return;	1562	return;
1082		1563
1083	ev_start ((W)w, ++idlecnt);
1084	array_needsize (idles, idlemax, idlecnt, );
1085	idles [idlecnt - 1] = w;
1086	}
1087
1088	void
1089	ev_idle_stop (struct ev_idle *w)
1090	{
1091	ev_clear_pending ((W)w);
1092	if (ev_is_active (w))
1093	return;
1094
1095	idles [w->active - 1] = idles [--idlecnt];
1096	ev_stop ((W)w);
1097	}
1098
1099	void
1100	ev_prepare_start (struct ev_prepare *w)
1101	{
1102	if (ev_is_active (w))
1103	return;
1104
1105	ev_start ((W)w, ++preparecnt);
1106	array_needsize (prepares, preparemax, preparecnt, );
1107	prepares [preparecnt - 1] = w;
1108	}
1109
1110	void
1111	ev_prepare_stop (struct ev_prepare *w)
1112	{
1113	ev_clear_pending ((W)w);
1114	if (ev_is_active (w))
1115	return;
1116
1117	prepares [w->active - 1] = prepares [--preparecnt];
1118	ev_stop ((W)w);
1119	}
1120
1121	void
1122	ev_check_start (struct ev_check *w)
1123	{
1124	if (ev_is_active (w))
1125	return;
1126
1127	ev_start ((W)w, ++checkcnt);
1128	array_needsize (checks, checkmax, checkcnt, );
1129	checks [checkcnt - 1] = w;
1130	}
1131
1132	void
1133	ev_check_stop (struct ev_check *w)
1134	{
1135	ev_clear_pending ((W)w);
1136	if (ev_is_active (w))
1137	return;
1138
1139	checks [w->active - 1] = checks [--checkcnt];
1140	ev_stop ((W)w);
1141	}
1142
1143	void
1144	ev_child_start (struct ev_child *w)
1145	{
1146	if (ev_is_active (w))
1147	return;
1148
1149	ev_start ((W)w, 1);	1564	ev_start (EV_A_ (W)w, 1);
1150	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1565	wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1151	}	1566	}
1152		1567
1153	void	1568	void
1154	ev_child_stop (struct ev_child *w)	1569	ev_child_stop (EV_P_ struct ev_child *w)
1155	{	1570	{
1156	ev_clear_pending ((W)w);	1571	ev_clear_pending (EV_A_ (W)w);
1157	if (ev_is_active (w))	1572	if (!ev_is_active (w))
1158	return;	1573	return;
1159		1574
1160	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);	1575	wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w);
1161	ev_stop ((W)w);	1576	ev_stop (EV_A_ (W)w);
1162	}	1577	}
1163		1578
1164	/*****************************************************************************/	1579	/*****************************************************************************/
1165		1580
1166	struct ev_once	1581	struct ev_once
…		…
1170	void (cb)(int revents, void arg);	1585	void (cb)(int revents, void arg);
1171	void *arg;	1586	void *arg;
1172	};	1587	};
1173		1588
1174	static void	1589	static void
1175	once_cb (struct ev_once *once, int revents)	1590	once_cb (EV_P_ struct ev_once *once, int revents)
1176	{	1591	{
1177	void (cb)(int revents, void arg) = once->cb;	1592	void (cb)(int revents, void arg) = once->cb;
1178	void *arg = once->arg;	1593	void *arg = once->arg;
1179		1594
1180	ev_io_stop (&once->io);	1595	ev_io_stop (EV_A_ &once->io);
1181	ev_timer_stop (&once->to);	1596	ev_timer_stop (EV_A_ &once->to);
1182	free (once);	1597	ev_free (once);
1183		1598
1184	cb (revents, arg);	1599	cb (revents, arg);
1185	}	1600	}
1186		1601
1187	static void	1602	static void
1188	once_cb_io (struct ev_io *w, int revents)	1603	once_cb_io (EV_P_ struct ev_io *w, int revents)
1189	{	1604	{
1190	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);	1605	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, io)), revents);
1191	}	1606	}
1192		1607
1193	static void	1608	static void
1194	once_cb_to (struct ev_timer *w, int revents)	1609	once_cb_to (EV_P_ struct ev_timer *w, int revents)
1195	{	1610	{
1196	once_cb ((struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);	1611	once_cb (EV_A_ (struct ev_once )(((char )w) - offsetof (struct ev_once, to)), revents);
1197	}	1612	}
1198		1613
1199	void	1614	void
1200	ev_once (int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)	1615	ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (cb)(int revents, void arg), void *arg)
1201	{	1616	{
1202	struct ev_once *once = malloc (sizeof (struct ev_once));	1617	struct ev_once once = (struct ev_once )ev_malloc (sizeof (struct ev_once));
1203		1618
1204	if (!once)	1619	if (!once)
1205	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);	1620	cb (EV_ERROR \| EV_READ \| EV_WRITE \| EV_TIMEOUT, arg);
1206	else	1621	else
1207	{	1622	{
1208	once->cb = cb;	1623	once->cb = cb;
1209	once->arg = arg;	1624	once->arg = arg;
1210		1625
1211	ev_watcher_init (&once->io, once_cb_io);	1626	ev_init (&once->io, once_cb_io);
1212	if (fd >= 0)	1627	if (fd >= 0)
1213	{	1628	{
1214	ev_io_set (&once->io, fd, events);	1629	ev_io_set (&once->io, fd, events);
1215	ev_io_start (&once->io);	1630	ev_io_start (EV_A_ &once->io);
1216	}	1631	}
1217		1632
1218	ev_watcher_init (&once->to, once_cb_to);	1633	ev_init (&once->to, once_cb_to);
1219	if (timeout >= 0.)	1634	if (timeout >= 0.)
1220	{	1635	{
1221	ev_timer_set (&once->to, timeout, 0.);	1636	ev_timer_set (&once->to, timeout, 0.);
1222	ev_timer_start (&once->to);	1637	ev_timer_start (EV_A_ &once->to);
1223	}	1638	}
1224	}	1639	}
1225	}	1640	}
1226		1641
1227	/*****************************************************************************/	1642	#ifdef __cplusplus
1228
1229	#if 0
1230
1231	struct ev_io wio;
1232
1233	static void
1234	sin_cb (struct ev_io *w, int revents)
1235	{
1236	fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
1237	}	1643	}
1238
1239	static void
1240	ocb (struct ev_timer *w, int revents)
1241	{
1242	//fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
1243	ev_timer_stop (w);
1244	ev_timer_start (w);
1245	}
1246
1247	static void
1248	scb (struct ev_signal *w, int revents)
1249	{
1250	fprintf (stderr, "signal %x,%d\n", revents, w->signum);
1251	ev_io_stop (&wio);
1252	ev_io_start (&wio);
1253	}
1254
1255	static void
1256	gcb (struct ev_signal *w, int revents)
1257	{
1258	fprintf (stderr, "generic %x\n", revents);
1259
1260	}
1261
1262	int main (void)
1263	{
1264	ev_init (0);
1265
1266	ev_io_init (&wio, sin_cb, 0, EV_READ);
1267	ev_io_start (&wio);
1268
1269	struct ev_timer t[10000];
1270
1271	#if 0
1272	int i;
1273	for (i = 0; i < 10000; ++i)
1274	{
1275	struct ev_timer *w = t + i;
1276	ev_watcher_init (w, ocb, i);
1277	ev_timer_init_abs (w, ocb, drand48 (), 0.99775533);
1278	ev_timer_start (w);
1279	if (drand48 () < 0.5)
1280	ev_timer_stop (w);
1281	}
1282	#endif	1644	#endif
1283		1645
1284	struct ev_timer t1;
1285	ev_timer_init (&t1, ocb, 5, 10);
1286	ev_timer_start (&t1);
1287
1288	struct ev_signal sig;
1289	ev_signal_init (&sig, scb, SIGQUIT);
1290	ev_signal_start (&sig);
1291
1292	struct ev_check cw;
1293	ev_check_init (&cw, gcb);
1294	ev_check_start (&cw);
1295
1296	struct ev_idle iw;
1297	ev_idle_init (&iw, gcb);
1298	ev_idle_start (&iw);
1299
1300	ev_loop (0);
1301
1302	return 0;
1303	}
1304
1305	#endif
1306
1307
1308
1309

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Comparing libev/ev.c (file contents): Revision 1.49 by root, Sat Nov 3 16:16:58 2007 UTC vs. Revision 1.106 by root, Mon Nov 12 01:07:50 2007 UTC

Diff Legend

Comparing libev/ev.c (file contents):
Revision 1.49 by root, Sat Nov 3 16:16:58 2007 UTC vs.
Revision 1.106 by root, Mon Nov 12 01:07:50 2007 UTC