-/* Copyright (C) 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
This file is part of the GNU OpenMP Library (libgomp).
Libgomp is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
- You should have received a copy of the GNU Lesser General Public License
- along with libgomp; see the file COPYING.LIB. If not, write to the
- Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
-/* As a special exception, if you link this library with other files, some
- of which are compiled with GCC, to produce an executable, this library
- does not by itself cause the resulting executable to be covered by the
- GNU General Public License. This exception does not however invalidate
- any other reasons why the executable file might be covered by the GNU
- General Public License. */
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
/* This file defines the OpenMP internal control variables, and arranges
for them to be initialized from environment variables at startup. */
present and it was successfully parsed. */
static bool
-parse_unsigned_long (const char *name, unsigned long *pvalue)
+parse_unsigned_long (const char *name, unsigned long *pvalue, bool allow_zero)
{
char *env, *end;
unsigned long value;
errno = 0;
value = strtoul (env, &end, 10);
- if (errno || (long) value <= 0)
+ if (errno || (long) value <= 0 - allow_zero)
goto invalid;
while (isspace ((unsigned char) *end))
parse_schedule ();
parse_boolean ("OMP_DYNAMIC", &gomp_global_icv.dyn_var);
parse_boolean ("OMP_NESTED", &gomp_global_icv.nest_var);
- parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var);
- parse_unsigned_long ("OMP_THREAD_LIMIT", &gomp_thread_limit_var);
+ parse_unsigned_long ("OMP_MAX_ACTIVE_LEVELS", &gomp_max_active_levels_var,
+ true);
+ parse_unsigned_long ("OMP_THREAD_LIMIT", &gomp_thread_limit_var, false);
if (gomp_thread_limit_var != ULONG_MAX)
gomp_remaining_threads_count = gomp_thread_limit_var - 1;
#ifndef HAVE_SYNC_BUILTINS
#endif
gomp_init_num_threads ();
gomp_available_cpus = gomp_global_icv.nthreads_var;
- if (!parse_unsigned_long ("OMP_NUM_THREADS", &gomp_global_icv.nthreads_var))
+ if (!parse_unsigned_long ("OMP_NUM_THREADS", &gomp_global_icv.nthreads_var,
+ false))
gomp_global_icv.nthreads_var = gomp_available_cpus;
if (parse_affinity ())
gomp_init_affinity ();
void
omp_set_max_active_levels (int max_levels)
{
- if (max_levels > 0)
+ if (max_levels >= 0)
gomp_max_active_levels_var = max_levels;
}