/* This testcase is part of GDB, the GNU debugger.
|
/* This testcase is part of GDB, the GNU debugger.
|
|
|
Copyright 2004, 2007, 2008 Free Software Foundation, Inc.
|
Copyright 2004, 2007, 2008 Free Software Foundation, Inc.
|
|
|
This program is free software; you can redistribute it and/or modify
|
This program is free software; you can redistribute it and/or modify
|
it under the terms of the GNU General Public License as published by
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 3 of the License, or
|
the Free Software Foundation; either version 3 of the License, or
|
(at your option) any later version.
|
(at your option) any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
*/
|
*/
|
|
|
#include <stdio.h>
|
#include <stdio.h>
|
#include <string.h>
|
#include <string.h>
|
#include <signal.h>
|
#include <signal.h>
|
#include <sys/time.h>
|
#include <sys/time.h>
|
#include <errno.h>
|
#include <errno.h>
|
|
|
static volatile int done;
|
static volatile int done;
|
|
|
static void
|
static void
|
handler (int sig)
|
handler (int sig)
|
{
|
{
|
done = 1;
|
done = 1;
|
} /* handler */
|
} /* handler */
|
|
|
struct itimerval itime;
|
struct itimerval itime;
|
struct sigaction action;
|
struct sigaction action;
|
|
|
/* The enum is so that GDB can easily see these macro values. */
|
/* The enum is so that GDB can easily see these macro values. */
|
enum {
|
enum {
|
itimer_real = ITIMER_REAL,
|
itimer_real = ITIMER_REAL,
|
itimer_virtual = ITIMER_VIRTUAL
|
itimer_virtual = ITIMER_VIRTUAL
|
} itimer = ITIMER_VIRTUAL;
|
} itimer = ITIMER_VIRTUAL;
|
|
|
int
|
int
|
main ()
|
main ()
|
{
|
{
|
|
|
int res;
|
int res;
|
/* Set up the signal handler. */
|
/* Set up the signal handler. */
|
memset (&action, 0, sizeof (action));
|
memset (&action, 0, sizeof (action));
|
action.sa_handler = handler;
|
action.sa_handler = handler;
|
sigaction (SIGVTALRM, &action, NULL);
|
sigaction (SIGVTALRM, &action, NULL);
|
sigaction (SIGALRM, &action, NULL);
|
sigaction (SIGALRM, &action, NULL);
|
|
|
/* The values needed for the itimer. This needs to be at least long
|
/* The values needed for the itimer. This needs to be at least long
|
enough for the setitimer() call to return. */
|
enough for the setitimer() call to return. */
|
memset (&itime, 0, sizeof (itime));
|
memset (&itime, 0, sizeof (itime));
|
itime.it_value.tv_usec = 250 * 1000;
|
itime.it_value.tv_usec = 250 * 1000;
|
|
|
/* Loop for ever, constantly taking an interrupt. */
|
/* Loop for ever, constantly taking an interrupt. */
|
while (1)
|
while (1)
|
{
|
{
|
/* Set up a one-off timer. A timer, rather than SIGSEGV, is
|
/* Set up a one-off timer. A timer, rather than SIGSEGV, is
|
used as after a timer handler finishes the interrupted code
|
used as after a timer handler finishes the interrupted code
|
can safely resume. */
|
can safely resume. */
|
res = setitimer (itimer, &itime, NULL);
|
res = setitimer (itimer, &itime, NULL);
|
if (res == -1)
|
if (res == -1)
|
{
|
{
|
printf ("First call to setitimer failed, errno = %d\r\n",errno);
|
printf ("First call to setitimer failed, errno = %d\r\n",errno);
|
itimer = ITIMER_REAL;
|
itimer = ITIMER_REAL;
|
res = setitimer (itimer, &itime, NULL);
|
res = setitimer (itimer, &itime, NULL);
|
if (res == -1)
|
if (res == -1)
|
{
|
{
|
printf ("Second call to setitimer failed, errno = %d\r\n",errno);
|
printf ("Second call to setitimer failed, errno = %d\r\n",errno);
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
/* Wait. */
|
/* Wait. */
|
while (!done);
|
while (!done);
|
done = 0;
|
done = 0;
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
