pthread_attr_setscope.c

/*
 * pthread_attr_setscope.c
 *
 * Description:
 * This translation unit implements operations on thread attribute objects.
 *
 * --------------------------------------------------------------------------
 *
 *      Pthreads4w - POSIX Threads for Windows
 *      Copyright 1998 John E. Bossom
 *      Copyright 1999-2018, Pthreads4w contributors
 *
 *      Homepage: https://sourceforge.net/projects/pthreads4w/
 *
 *      The current list of contributors is contained
 *      in the file CONTRIBUTORS included with the source
 *      code distribution. The list can also be seen at the
 *      following World Wide Web location:
 *
 *      https://sourceforge.net/p/pthreads4w/wiki/Contributors/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include "pthread.h"
#include "implement.h"

/* ignore warning "unreferenced formal parameter" */
#if defined(_MSC_VER)
#pragma warning( disable : 4100 )
#endif

int
pthread_attr_setscope (pthread_attr_t * attr, int contentionscope)
{
#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING)
  switch (contentionscope)
    {
    case PTHREAD_SCOPE_SYSTEM:
      (*attr)->contentionscope = contentionscope;
      return 0;
    case PTHREAD_SCOPE_PROCESS:
      return ENOTSUP;
    default:
      return EINVAL;
    }
#else
  return ENOSYS;
#endif
}