native_client_sdk/src/libraries/third_party/pthreads-win32/pthread_attr_setscope.c

   1 /*
   2  * pthread_attr_setscope.c
   3  *
   4  * Description:
   5  * This translation unit implements operations on thread attribute objects.
   6  *
   7  * --------------------------------------------------------------------------
   8  *
   9  *      Pthreads-win32 - POSIX Threads Library for Win32
  10  *      Copyright(C) 1998 John E. Bossom
  11  *      Copyright(C) 1999,2005 Pthreads-win32 contributors
  12  *
  13  *      Contact Email: rpj@callisto.canberra.edu.au
  14  *
  15  *      The current list of contributors is contained
  16  *      in the file CONTRIBUTORS included with the source
  17  *      code distribution. The list can also be seen at the
  18  *      following World Wide Web location:
  19  *      http://sources.redhat.com/pthreads-win32/contributors.html
  20  *
  21  *      This library is free software; you can redistribute it and/or
  22  *      modify it under the terms of the GNU Lesser General Public
  23  *      License as published by the Free Software Foundation; either
  24  *      version 2 of the License, or (at your option) any later version.
  25  *
  26  *      This library is distributed in the hope that it will be useful,
  27  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  28  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  29  *      Lesser General Public License for more details.
  30  *
  31  *      You should have received a copy of the GNU Lesser General Public
  32  *      License along with this library in the file COPYING.LIB;
  33  *      if not, write to the Free Software Foundation, Inc.,
  34  *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  35  */
  36
  37 #include "pthread.h"
  38 #include "implement.h"
  39
  40 /* ignore warning "unreferenced formal parameter" */
  41 #if defined(_MSC_VER)
  42 #pragma warning( disable : 4100 )
  43 #endif
  44
  45 int
  46 pthread_attr_setscope (pthread_attr_t * attr, int contentionscope)
  47 {
  48 #if defined(_POSIX_THREAD_PRIORITY_SCHEDULING)
  49   switch (contentionscope)
  50     {
  51     case PTHREAD_SCOPE_SYSTEM:
  52       (*attr)->contentionscope = contentionscope;
  53       return 0;
  54     case PTHREAD_SCOPE_PROCESS:
  55       return ENOTSUP;
  56     default:
  57       return EINVAL;
  58     }
  59 #else
  60   return ENOSYS;
  61 #endif
  62 }