text: /*
   * pthread_attr_setstacksize.c
   *
   * Description:
   * This translation unit implements operations on thread attribute objects.
   *
   * --------------------------------------------------------------------------
   *
   *      Pthreads-win32 - POSIX Threads Library for Win32
   *      Copyright(C) 1998 John E. Bossom
   *      Copyright(C) 1999,2005 Pthreads-win32 contributors
   * 
   *      Contact Email: rpj@callisto.canberra.edu.au
   * 
   *      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:
   *      http://sources.redhat.com/pthreads-win32/contributors.html
   * 
   *      This library 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 of the License, or (at your option) any later version.
   * 
   *      This library 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 more details.
   * 
   *      You should have received a copy of the GNU Lesser General Public
   *      License along with this library in the file COPYING.LIB;
   *      if not, write to the Free Software Foundation, Inc.,
   *      51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "pthread.h"
  #include "implement.h"
  
  
  int
  pthread_attr_setstacksize (pthread_attr_t * attr, size_t stacksize)
       /*
        * ------------------------------------------------------
        * DOCPUBLIC
        *      This function specifies the size of the stack on
        *      which threads created with 'attr' will run.
        *
        * PARAMETERS
        *      attr
        *              pointer to an instance of pthread_attr_t
        *
        *      stacksize
        *              stack size, in bytes.
        *
        *
        * DESCRIPTION
        *      This function specifies the size of the stack on
        *      which threads created with 'attr' will run.
        *
        *      NOTES:
        *              1)      Function supported only if this macro is
        *                      defined:
        *
        *                              _POSIX_THREAD_ATTR_STACKSIZE
        *
        *              2)      Find the default first (using
        *                      pthread_attr_getstacksize), then increase
        *                      by multiplying.
        *
        *              3)      Only use if thread needs more than the
        *                      default.
        *
        * RESULTS
        *              0               successfully set stack size,
        *              EINVAL          'attr' is invalid or stacksize too
        *                              small or too big.
        *              ENOSYS          function not supported
        *
        * ------------------------------------------------------
        */
  {
  #if defined(_POSIX_THREAD_ATTR_STACKSIZE)
  
  #if PTHREAD_STACK_MIN > 0
  
    /*  Verify that the stack size is within range. */
    if (stacksize < PTHREAD_STACK_MIN)
      {
        return EINVAL;
      }
  
  #endif
  
    if (ptw32_is_attr (attr) != 0)
      {
        return EINVAL;
      }
  
    /* Everything is okay. */
    (*attr)->stacksize = stacksize;
    return 0;
  
  #else
  
    return ENOSYS;
  
  #endif /* _POSIX_THREAD_ATTR_STACKSIZE */
  
  }
  