The code below sets up a simple timer with SIGEV_THREAD. I compiled the
code as "g++ timertest.cc -o timertest -lrt -pthread".
Running it on my G5 with 2.6.27 (but with an older glibc), it prints:
Creating timer
Setting timer 268509264 for 5-second expiration...
and then the timer never expires. I have an old Fedora Core 4 x86
machine and there it works as expected.
Is there some hard requirement to upgrade glibc? If not, then this
looks like a bug somewhere.
Thanks,
Chris
int main(void)
{
timer_t timer_id;
struct itimerspec its;
struct sigevent se;
// set timer signal event
se.sigev_notify = SIGEV_THREAD;
se.sigev_value.sival_ptr = &timer_id;
se.sigev_notify_function = handler;
se.sigev_notify_attributes = NULL;
if ( timer_create(CLOCK_REALTIME, &se, &timer_id) < 0)
{
printf("create timer failed\n");
fflush(0);
return 0;
}
// set timer.
its.it_value.tv_sec = 1;
its.it_value.tv_nsec = 0;
its.it_interval.tv_sec = 1;
its.it_interval.tv_nsec = 0;
if ( timer_settime(timer_id, 0, &its, NULL) < 0)
{
printf("set timer failed\n");
fflush(0);
return 0;
}
printf("set timer OK\n");
fflush(0);
while(1)
{ pause();}
return 0;
}
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