/**
Get a value as unsigned int
\param key key
\param value value to read
\returns value
*/
static unsigned int as_unsigned_int(const char *key, const char *value)
{
unsigned long ret = 0;
if (!parse_unsigned_long(value, &ret))
die_bad_config(key);
return ret;
}
initialize_env (void)
{
unsigned long stacksize;
/* Do a compile time check that mkomp_h.pl did good job. */
omp_check_defines ();
parse_schedule ();
parse_boolean ("OMP_DYNAMIC", &gomp_dyn_var);
parse_boolean ("OMP_NESTED", &gomp_nest_var);
if (!parse_unsigned_long ("OMP_NUM_THREADS", &gomp_nthreads_var))
gomp_init_num_threads ();
/* Not strictly environment related, but ordering constructors is tricky. */
pthread_attr_init (&gomp_thread_attr);
pthread_attr_setdetachstate (&gomp_thread_attr, PTHREAD_CREATE_DETACHED);
if (parse_unsigned_long ("GOMP_STACKSIZE", &stacksize))
{
int err;
stacksize *= 1024;
err = pthread_attr_setstacksize (&gomp_thread_attr, stacksize);
#ifdef PTHREAD_STACK_MIN
if (err == EINVAL)
{
if (stacksize < PTHREAD_STACK_MIN)
gomp_error ("Stack size less than minimum of %luk",
PTHREAD_STACK_MIN / 1024ul
+ (PTHREAD_STACK_MIN % 1024 != 0));
else
gomp_error ("Stack size larger than system limit");
}
else
#endif
if (err != 0)
gomp_error ("Stack size change failed: %s", strerror (err));
}
}