libev/ev.c

#include <math.h>
#include <stdlib.h>

#include <stdio.h>

#include <errno.h>
#include <sys/time.h>
#include <time.h>

#ifdef CLOCK_MONOTONIC
# define HAVE_MONOTONIC 1
#endif

#define HAVE_EPOLL 1
#define HAVE_REALTIME 1
#define HAVE_SELECT 0

#define MAX_BLOCKTIME 60.

#include "ev.h"

struct ev_watcher {
  EV_WATCHER (ev_watcher);
};

struct ev_watcher_list {
  EV_WATCHER_LIST (ev_watcher_list);
};

ev_tstamp ev_now;
int ev_method;

static int have_monotonic; /* runtime */

static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
static void (*method_reify)(void);
static void (*method_poll)(ev_tstamp timeout);

ev_tstamp
ev_time (void)
{
#if HAVE_REALTIME
  struct timespec ts;
  clock_gettime (CLOCK_REALTIME, &ts);
  return ts.tv_sec + ts.tv_nsec * 1e-9;
#else
  struct timeval tv;
  gettimeofday (&tv, 0);
  return tv.tv_sec + tv.tv_usec * 1e-6;
#endif
}

static ev_tstamp
get_clock (void)
{
#if HAVE_MONOTONIC
  if (have_monotonic)
    {
      struct timespec ts;
      clock_gettime (CLOCK_MONOTONIC, &ts);
      return ts.tv_sec + ts.tv_nsec * 1e-9;
    }
#endif

  return ev_time ();
}

#define array_needsize(base,cur,cnt,init)               \
  if ((cnt) > cur)                                      \
    {                                                   \
      int newcnt = cur ? cur << 1 : 16;                 \
      fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\
      base = realloc (base, sizeof (*base) * (newcnt)); \
      init (base + cur, newcnt - cur);                  \
      cur = newcnt;                                     \
    }

typedef struct
{
  struct ev_io *head;
  unsigned char wev, rev; /* want, received event set */
} ANFD;

static ANFD *anfds;
static int anfdmax;

static int *fdchanges;
static int fdchangemax, fdchangecnt;

static void
anfds_init (ANFD *base, int count)
{
  while (count--)
    {
      base->head = 0;
      base->wev = base->rev = EV_NONE;
      ++base;
    }
}

typedef struct
{
  struct ev_watcher *w;
  int events;
} ANPENDING;

static ANPENDING *pendings;
static int pendingmax, pendingcnt;

static void
event (struct ev_watcher *w, int events)
{
  w->pending = ++pendingcnt;
  array_needsize (pendings, pendingmax, pendingcnt, );
  pendings [pendingcnt - 1].w      = w;
  pendings [pendingcnt - 1].events = events;
}

static void
fd_event (int fd, int events)
{
  ANFD *anfd = anfds + fd;
  struct ev_io *w;

  for (w = anfd->head; w; w = w->next)
    {
      int ev = w->events & events;

      if (ev)
        event ((struct ev_watcher *)w, ev);
    }
}

static struct ev_timer **timers;
static int timermax, timercnt;

static void
upheap (int k)
{
  struct ev_timer *w = timers [k];

  while (k && timers [k >> 1]->at > w->at)
    {
      timers [k] = timers [k >> 1];
      timers [k]->active = k + 1;
      k >>= 1;
    }

  timers [k] = w;
  timers [k]->active = k + 1;

}

static void
downheap (int k)
{
  struct ev_timer *w = timers [k];

  while (k < (timercnt >> 1))
    {
      int j = k << 1;

      if (j + 1 < timercnt && timers [j]->at > timers [j + 1]->at)
        ++j;

      if (w->at <= timers [j]->at)
        break;

      timers [k] = timers [j];
      timers [k]->active = k + 1;
      k = j;
    }

  timers [k] = w;
  timers [k]->active = k + 1;
}

static struct ev_signal **signals;
static int signalmax, signalcnt;

static void
signals_init (struct ev_signal **base, int count)
{
  while (count--)
    *base++ = 0;
}

#if HAVE_EPOLL
# include "ev_epoll.c"
#endif
#if HAVE_SELECT
# include "ev_select.c"
#endif

int ev_init (int flags)
{
#if HAVE_MONOTONIC
  {
    struct timespec ts;
    if (!clock_gettime (CLOCK_MONOTONIC, &ts))
      have_monotonic = 1;
  }
#endif

  ev_now = ev_time ();

#if HAVE_EPOLL
  if (epoll_init (flags))
    return ev_method;
#endif
#if HAVE_SELECT
  if (select_init (flags))
    return ev_method;
#endif

  ev_method = EVMETHOD_NONE;
  return ev_method;
}

void ev_prefork (void)
{
}

void ev_postfork_parent (void)
{
}

void ev_postfork_child (void)
{
#if HAVE_EPOLL
  epoll_postfork_child ();
#endif
}

static void
call_pending ()
{
  int i;

  for (i = 0; i < pendingcnt; ++i)
    {
      ANPENDING *p = pendings + i;

      if (p->w)
        {
          p->w->pending = 0;
          p->w->cb (p->w, p->events);
        }
    }

  pendingcnt = 0;
}

static void
timer_reify (void)
{
  while (timercnt && timers [0]->at <= ev_now)
    {
      struct ev_timer *w = timers [0];

          fprintf (stderr, "0 %f, %d c%d\n", w->at, w->active, timercnt);//D
      /* first reschedule timer */
      if (w->repeat)
        {
          fprintf (stderr, "a %f now %f repeat %f, %f\n", w->at, ev_now, w->repeat, w->repeat *1e30);//D
          if (w->is_abs)
            w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat;
          else
            w->at = ev_now + w->repeat;

          fprintf (stderr, "b %f\n", w->at);//D

          downheap (0);
        }
      else
        {
          fprintf (stderr, "c %f, %d c%d\n", w->at, w->active, timercnt);//D
        evtimer_stop (w); /* nonrepeating: stop timer */
        }

      event ((struct ev_watcher *)w, EV_TIMEOUT);
    }
}

int ev_loop_done;

int ev_loop (int flags)
{
  double block;
  ev_loop_done = flags & EVLOOP_ONESHOT;

  do
    {
      /* update fd-related kernel structures */
      method_reify (); fdchangecnt = 0;

      /* calculate blocking time */
      ev_now = ev_time ();

      if (flags & EVLOOP_NONBLOCK)
        block = 0.;
      else if (!timercnt)
        block = MAX_BLOCKTIME;
      else
        {
          block = timers [0]->at - ev_now + method_fudge;
          if (block < 0.) block = 0.;
          else if (block > MAX_BLOCKTIME) block = MAX_BLOCKTIME;
        }

      fprintf (stderr, "block %f\n", block);//D
      method_poll (block);

      /* put pending timers into pendign queue and reschedule them */
      timer_reify ();

      ev_now = ev_time ();
      call_pending ();
    }
  while (!ev_loop_done);
}

static void
wlist_add (struct ev_watcher_list **head, struct ev_watcher_list *elem)
{
  elem->next = *head;
  *head = elem;
}

static void
wlist_del (struct ev_watcher_list **head, struct ev_watcher_list *elem)
{
  while (*head)
    {
      if (*head == elem)
        {
          *head = elem->next;
          return;
        }

      head = &(*head)->next;
    }
}

static void
ev_start (struct ev_watcher *w, int active)
{
  w->pending = 0;
  w->active = active;
}

static void
ev_stop (struct ev_watcher *w)
{
  if (w->pending)
    pendings [w->pending - 1].w = 0;

  w->active = 0;
  /* nop */
}

void
evio_start (struct ev_io *w)
{
  if (ev_is_active (w))
    return;

  int fd = w->fd;

  ev_start ((struct ev_watcher *)w, 1);
  array_needsize (anfds, anfdmax, fd + 1, anfds_init);
  wlist_add ((struct ev_watcher_list **)&anfds[fd].head, (struct ev_watcher_list *)w);

  ++fdchangecnt;
  array_needsize (fdchanges, fdchangemax, fdchangecnt, );
  fdchanges [fdchangecnt - 1] = fd;
}

void
evio_stop (struct ev_io *w)
{
  if (!ev_is_active (w))
    return;

  wlist_del ((struct ev_watcher_list **)&anfds[w->fd].head, (struct ev_watcher_list *)w);
  ev_stop ((struct ev_watcher *)w);

  ++fdchangecnt;
  array_needsize (fdchanges, fdchangemax, fdchangecnt, );
  fdchanges [fdchangecnt - 1] = w->fd;
}

void
evtimer_start (struct ev_timer *w)
{
  if (ev_is_active (w))
    return;

  fprintf (stderr, "t1 %f a %d\n", w->at, w->is_abs);//D
  if (w->is_abs)
    {
      /* this formula differs from the one in timer_reify becuse we do not round up */
      if (w->repeat)
        w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat;
    }
  else
    w->at += ev_now;
  fprintf (stderr, "t2 %f a %d\n", w->at, w->is_abs);//D

  ev_start ((struct ev_watcher *)w, ++timercnt);
  array_needsize (timers, timermax, timercnt, );
  timers [timercnt - 1] = w;
  upheap (timercnt - 1);
}

void
evtimer_stop (struct ev_timer *w)
{
  fprintf (stderr, "-topping %d, %d\n", w->active, timercnt);//D
  if (!ev_is_active (w))
    return;

  fprintf (stderr, "stopping %d, %d\n", w->active, timercnt);//D
  if (w->active < timercnt)
    {
      timers [w->active - 1] = timers [--timercnt];
      downheap (w->active - 1);
    }

  ev_stop ((struct ev_watcher *)w);
}

void
evsignal_start (struct ev_signal *w)
{
  if (ev_is_active (w))
    return;

  ev_start ((struct ev_watcher *)w, 1);
  array_needsize (signals, signalmax, w->signum, signals_init);
  wlist_add ((struct ev_watcher_list **)&signals [w->signum - 1], (struct ev_watcher_list *)w);
}

void
evsignal_stop (struct ev_signal *w)
{
  if (!ev_is_active (w))
    return;

  wlist_del ((struct ev_watcher_list **)&signals [w->signum - 1], (struct ev_watcher_list *)w);
  ev_stop ((struct ev_watcher *)w);
}

/*****************************************************************************/
#if 1

static void
sin_cb (struct ev_io *w, int revents)
{
  fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
}

static void
ocb (struct ev_timer *w, int revents)
{
  fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
}

int main (void)
{
  struct ev_io sin;

  ev_init (0);

  evw_init (&sin, sin_cb, 55);
  evio_set (&sin, 0, EV_READ);
  evio_start (&sin);

  struct ev_timer t[1000];

  int i;
  for (i = 0; i < 1000; ++i)
    {
      struct ev_timer *w = t + i;
      evw_init (w, ocb, i);
      evtimer_set_rel (w, drand48 (), 0);
      evtimer_start (w);
      if (drand48 () < 0.5)
        evtimer_stop (w);
    }

  ev_loop (0);

  return 0;
}

#endif


Revision:	1.2
Committed:	Tue Oct 30 21:42:12 2007 UTC (16 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.1:	+29 -20 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#include <math.h>
2			#include <stdlib.h>
3
4			#include <stdio.h>
5
6			#include <errno.h>
7			#include <sys/time.h>
8			#include <time.h>
9
10			#ifdef CLOCK_MONOTONIC
11			# define HAVE_MONOTONIC 1
12			#endif
13
14			#define HAVE_EPOLL 1
15			#define HAVE_REALTIME 1
16			#define HAVE_SELECT 0
17
18			#define MAX_BLOCKTIME 60.
19
20			#include "ev.h"
21
22			struct ev_watcher {
23			EV_WATCHER (ev_watcher);
24			};
25
26			struct ev_watcher_list {
27			EV_WATCHER_LIST (ev_watcher_list);
28			};
29
30			ev_tstamp ev_now;
31			int ev_method;
32
33			static int have_monotonic; /* runtime */
34
35			static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */
36			static void (*method_reify)(void);
37			static void (*method_poll)(ev_tstamp timeout);
38
39			ev_tstamp
40			ev_time (void)
41			{
42			#if HAVE_REALTIME
43			struct timespec ts;
44			clock_gettime (CLOCK_REALTIME, &ts);
45			return ts.tv_sec + ts.tv_nsec * 1e-9;
46			#else
47			struct timeval tv;
48			gettimeofday (&tv, 0);
49			return tv.tv_sec + tv.tv_usec * 1e-6;
50			#endif
51			}
52
53			static ev_tstamp
54			get_clock (void)
55			{
56			#if HAVE_MONOTONIC
57			if (have_monotonic)
58			{
59			struct timespec ts;
60			clock_gettime (CLOCK_MONOTONIC, &ts);
61			return ts.tv_sec + ts.tv_nsec * 1e-9;
62			}
63			#endif
64
65			return ev_time ();
66			}
67
68			#define array_needsize(base,cur,cnt,init) \
69			if ((cnt) > cur) \
70			{ \
71	root	1.2	int newcnt = cur ? cur << 1 : 16; \
72	root	1.1	fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\
73			base = realloc (base, sizeof (base) (newcnt)); \
74			init (base + cur, newcnt - cur); \
75			cur = newcnt; \
76			}
77
78			typedef struct
79			{
80			struct ev_io *head;
81			unsigned char wev, rev; /* want, received event set */
82			} ANFD;
83
84			static ANFD *anfds;
85			static int anfdmax;
86
87			static int *fdchanges;
88			static int fdchangemax, fdchangecnt;
89
90			static void
91			anfds_init (ANFD *base, int count)
92			{
93			while (count--)
94			{
95			base->head = 0;
96			base->wev = base->rev = EV_NONE;
97			++base;
98			}
99			}
100
101			typedef struct
102			{
103			struct ev_watcher *w;
104			int events;
105			} ANPENDING;
106
107			static ANPENDING *pendings;
108			static int pendingmax, pendingcnt;
109
110			static void
111			event (struct ev_watcher *w, int events)
112			{
113			w->pending = ++pendingcnt;
114			array_needsize (pendings, pendingmax, pendingcnt, );
115			pendings [pendingcnt - 1].w = w;
116			pendings [pendingcnt - 1].events = events;
117			}
118
119			static void
120			fd_event (int fd, int events)
121			{
122			ANFD *anfd = anfds + fd;
123			struct ev_io *w;
124
125			for (w = anfd->head; w; w = w->next)
126			{
127			int ev = w->events & events;
128
129			if (ev)
130			event ((struct ev_watcher *)w, ev);
131			}
132			}
133
134			static struct ev_timer **timers;
135			static int timermax, timercnt;
136
137			static void
138			upheap (int k)
139			{
140			struct ev_timer *w = timers [k];
141
142			while (k && timers [k >> 1]->at > w->at)
143			{
144			timers [k] = timers [k >> 1];
145			timers [k]->active = k + 1;
146			k >>= 1;
147			}
148
149			timers [k] = w;
150			timers [k]->active = k + 1;
151
152			}
153
154			static void
155			downheap (int k)
156			{
157			struct ev_timer *w = timers [k];
158
159	root	1.2	while (k < (timercnt >> 1))
160	root	1.1	{
161			int j = k << 1;
162
163			if (j + 1 < timercnt && timers [j]->at > timers [j + 1]->at)
164			++j;
165
166			if (w->at <= timers [j]->at)
167			break;
168
169			timers [k] = timers [j];
170	root	1.2	timers [k]->active = k + 1;
171	root	1.1	k = j;
172			}
173
174			timers [k] = w;
175			timers [k]->active = k + 1;
176			}
177
178			static struct ev_signal **signals;
179			static int signalmax, signalcnt;
180
181			static void
182			signals_init (struct ev_signal **base, int count)
183			{
184			while (count--)
185			*base++ = 0;
186			}
187
188			#if HAVE_EPOLL
189			# include "ev_epoll.c"
190			#endif
191			#if HAVE_SELECT
192			# include "ev_select.c"
193			#endif
194
195			int ev_init (int flags)
196			{
197			#if HAVE_MONOTONIC
198			{
199			struct timespec ts;
200			if (!clock_gettime (CLOCK_MONOTONIC, &ts))
201			have_monotonic = 1;
202			}
203			#endif
204
205			ev_now = ev_time ();
206
207			#if HAVE_EPOLL
208			if (epoll_init (flags))
209			return ev_method;
210			#endif
211			#if HAVE_SELECT
212			if (select_init (flags))
213			return ev_method;
214			#endif
215
216			ev_method = EVMETHOD_NONE;
217			return ev_method;
218			}
219
220			void ev_prefork (void)
221			{
222			}
223
224			void ev_postfork_parent (void)
225			{
226			}
227
228			void ev_postfork_child (void)
229			{
230			#if HAVE_EPOLL
231			epoll_postfork_child ();
232			#endif
233			}
234
235			static void
236			call_pending ()
237			{
238			int i;
239
240			for (i = 0; i < pendingcnt; ++i)
241			{
242			ANPENDING *p = pendings + i;
243
244			if (p->w)
245			{
246			p->w->pending = 0;
247			p->w->cb (p->w, p->events);
248			}
249			}
250
251			pendingcnt = 0;
252			}
253
254			static void
255			timer_reify (void)
256			{
257			while (timercnt && timers [0]->at <= ev_now)
258			{
259			struct ev_timer *w = timers [0];
260
261	root	1.2	fprintf (stderr, "0 %f, %d c%d\n", w->at, w->active, timercnt);//D
262	root	1.1	/* first reschedule timer */
263			if (w->repeat)
264			{
265			fprintf (stderr, "a %f now %f repeat %f, %f\n", w->at, ev_now, w->repeat, w->repeat *1e30);//D
266			if (w->is_abs)
267	root	1.2	w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat;
268	root	1.1	else
269			w->at = ev_now + w->repeat;
270
271			fprintf (stderr, "b %f\n", w->at);//D
272
273			downheap (0);
274			}
275			else
276	root	1.2	{
277			fprintf (stderr, "c %f, %d c%d\n", w->at, w->active, timercnt);//D
278	root	1.1	evtimer_stop (w); /* nonrepeating: stop timer */
279	root	1.2	}
280	root	1.1
281			event ((struct ev_watcher *)w, EV_TIMEOUT);
282			}
283			}
284
285			int ev_loop_done;
286
287			int ev_loop (int flags)
288			{
289			double block;
290			ev_loop_done = flags & EVLOOP_ONESHOT;
291
292			do
293			{
294			/* update fd-related kernel structures */
295			method_reify (); fdchangecnt = 0;
296
297			/* calculate blocking time */
298			ev_now = ev_time ();
299
300			if (flags & EVLOOP_NONBLOCK)
301			block = 0.;
302			else if (!timercnt)
303			block = MAX_BLOCKTIME;
304			else
305			{
306			block = timers [0]->at - ev_now + method_fudge;
307			if (block < 0.) block = 0.;
308			else if (block > MAX_BLOCKTIME) block = MAX_BLOCKTIME;
309			}
310
311			fprintf (stderr, "block %f\n", block);//D
312			method_poll (block);
313
314			/* put pending timers into pendign queue and reschedule them */
315			timer_reify ();
316
317			ev_now = ev_time ();
318			call_pending ();
319			}
320			while (!ev_loop_done);
321			}
322
323			static void
324			wlist_add (struct ev_watcher_list *head, struct ev_watcher_list elem)
325			{
326			elem->next = *head;
327			*head = elem;
328			}
329
330			static void
331			wlist_del (struct ev_watcher_list *head, struct ev_watcher_list elem)
332			{
333			while (*head)
334			{
335			if (*head == elem)
336			{
337			*head = elem->next;
338			return;
339			}
340
341			head = &(*head)->next;
342			}
343			}
344
345			static void
346			ev_start (struct ev_watcher *w, int active)
347			{
348			w->pending = 0;
349			w->active = active;
350			}
351
352			static void
353			ev_stop (struct ev_watcher *w)
354			{
355			if (w->pending)
356			pendings [w->pending - 1].w = 0;
357
358			w->active = 0;
359			/* nop */
360			}
361
362			void
363			evio_start (struct ev_io *w)
364			{
365			if (ev_is_active (w))
366			return;
367
368			int fd = w->fd;
369
370			ev_start ((struct ev_watcher *)w, 1);
371			array_needsize (anfds, anfdmax, fd + 1, anfds_init);
372			wlist_add ((struct ev_watcher_list *)&anfds[fd].head, (struct ev_watcher_list )w);
373
374			++fdchangecnt;
375			array_needsize (fdchanges, fdchangemax, fdchangecnt, );
376			fdchanges [fdchangecnt - 1] = fd;
377			}
378
379			void
380			evio_stop (struct ev_io *w)
381			{
382			if (!ev_is_active (w))
383			return;
384
385			wlist_del ((struct ev_watcher_list *)&anfds[w->fd].head, (struct ev_watcher_list )w);
386			ev_stop ((struct ev_watcher *)w);
387
388			++fdchangecnt;
389			array_needsize (fdchanges, fdchangemax, fdchangecnt, );
390			fdchanges [fdchangecnt - 1] = w->fd;
391			}
392
393			void
394			evtimer_start (struct ev_timer *w)
395			{
396			if (ev_is_active (w))
397			return;
398
399			fprintf (stderr, "t1 %f a %d\n", w->at, w->is_abs);//D
400			if (w->is_abs)
401			{
402	root	1.2	/* this formula differs from the one in timer_reify becuse we do not round up */
403	root	1.1	if (w->repeat)
404			w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat;
405			}
406			else
407			w->at += ev_now;
408			fprintf (stderr, "t2 %f a %d\n", w->at, w->is_abs);//D
409
410			ev_start ((struct ev_watcher *)w, ++timercnt);
411			array_needsize (timers, timermax, timercnt, );
412			timers [timercnt - 1] = w;
413			upheap (timercnt - 1);
414			}
415
416			void
417			evtimer_stop (struct ev_timer *w)
418			{
419	root	1.2	fprintf (stderr, "-topping %d, %d\n", w->active, timercnt);//D
420	root	1.1	if (!ev_is_active (w))
421			return;
422
423	root	1.2	fprintf (stderr, "stopping %d, %d\n", w->active, timercnt);//D
424			if (w->active < timercnt)
425			{
426			timers [w->active - 1] = timers [--timercnt];
427			downheap (w->active - 1);
428			}
429
430	root	1.1	ev_stop ((struct ev_watcher *)w);
431			}
432
433			void
434			evsignal_start (struct ev_signal *w)
435			{
436			if (ev_is_active (w))
437			return;
438
439			ev_start ((struct ev_watcher *)w, 1);
440			array_needsize (signals, signalmax, w->signum, signals_init);
441			wlist_add ((struct ev_watcher_list *)&signals [w->signum - 1], (struct ev_watcher_list )w);
442			}
443
444			void
445			evsignal_stop (struct ev_signal *w)
446			{
447			if (!ev_is_active (w))
448			return;
449
450			wlist_del ((struct ev_watcher_list *)&signals [w->signum - 1], (struct ev_watcher_list )w);
451			ev_stop ((struct ev_watcher *)w);
452			}
453
454			/*****************************************************************************/
455			#if 1
456
457			static void
458			sin_cb (struct ev_io *w, int revents)
459			{
460			fprintf (stderr, "sin %d, revents %d\n", w->fd, revents);
461			}
462
463			static void
464			ocb (struct ev_timer *w, int revents)
465			{
466			fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data);
467			}
468
469			int main (void)
470			{
471			struct ev_io sin;
472
473			ev_init (0);
474
475			evw_init (&sin, sin_cb, 55);
476			evio_set (&sin, 0, EV_READ);
477			evio_start (&sin);
478
479	root	1.2	struct ev_timer t[1000];
480
481			int i;
482			for (i = 0; i < 1000; ++i)
483			{
484			struct ev_timer *w = t + i;
485			evw_init (w, ocb, i);
486			evtimer_set_rel (w, drand48 (), 0);
487			evtimer_start (w);
488			if (drand48 () < 0.5)
489			evtimer_stop (w);
490			}
491	root	1.1
492			ev_loop (0);
493
494			return 0;
495			}
496
497			#endif
498
499
500
501