char *
get_time ()
{
if (watch_not_started)
exit (EXIT_FAILURE); /* call reset_watch first ! */
EMACS_GET_TIME (TV2);
EMACS_SUB_TIME (TV2, TV2, TV1);
sprintf (time_string, "%lu.%06lu", (unsigned long)EMACS_SECS (TV2), (unsigned long)EMACS_USECS (TV2));
return time_string;
}
static void
reset_interval_timer (void)
{
EMACS_TIME interval;
/* Get the interval to set. If an interval is available,
make sure it's not zero (this is a valid return, but it will
cause the timer to get disabled, so convert it to a very short
time). */
if (get_low_level_timeout_interval (async_timer_queue, &interval))
{
if (EMACS_SECS (interval) == 0 && EMACS_USECS (interval) == 0)
EMACS_SET_USECS (interval, 1);
}
else
/* A time of 0 means "disable". */
EMACS_SET_SECS_USECS (interval, 0, 0);
set_one_shot_timer (interval);
}
struct atimer *
start_atimer (enum atimer_type type, EMACS_TIME timestamp, atimer_callback fn,
void *client_data)
{
struct atimer *t;
/* Round TIME up to the next full second if we don't have
itimers. */
#ifndef HAVE_SETITIMER
if (EMACS_USECS (timestamp) != 0)
{
EMACS_SET_USECS (timestamp, 0);
EMACS_SET_SECS (timestamp, EMACS_SECS (timestamp) + 1);
}
#endif /* not HAVE_SETITIMER */
/* Get an atimer structure from the free-list, or allocate
a new one. */
if (free_atimers)
{
t = free_atimers;
free_atimers = t->next;
}
else
t = (struct atimer *) xmalloc (sizeof *t);
/* Fill the atimer structure. */
memset (t, 0, sizeof *t);
t->type = type;
t->fn = fn;
t->client_data = client_data;
BLOCK_ATIMERS;
/* Compute the timer's expiration time. */
switch (type)
{
case ATIMER_ABSOLUTE:
t->expiration = timestamp;
break;
case ATIMER_RELATIVE:
EMACS_GET_TIME (t->expiration);
EMACS_ADD_TIME (t->expiration, t->expiration, timestamp);
break;
case ATIMER_CONTINUOUS:
EMACS_GET_TIME (t->expiration);
EMACS_ADD_TIME (t->expiration, t->expiration, timestamp);
t->interval = timestamp;
break;
}
/* Insert the timer in the list of active atimers. */
schedule_atimer (t);
UNBLOCK_ATIMERS;
/* Arrange for a SIGALRM at the time the next atimer is ripe. */
set_alarm ();
return t;
}
