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/*

 *  $Id: keydelete.c,v 1.2 2001-09-27 11:59:17 chris Exp $

 */

#include <errno.h>

#include <limits.h>

#include <pthread.h>

#include <string.h>

#include <rtems/system.h>

#include <rtems/score/thread.h>

#include <rtems/score/wkspace.h>

#include <rtems/posix/key.h>

/*PAGE

 *

 *  17.1.3 Thread-Specific Data Key Deletion, P1003.1c/Draft 10, p. 167

 */

int pthread_key_delete(

  pthread_key_t  key

)

{

  register POSIX_Keys_Control *the_key;

  Objects_Locations            location;

  unsigned32                   the_class;

  the_key = _POSIX_Keys_Get( key, &location );

  switch ( location ) {

    case OBJECTS_ERROR:

    case OBJECTS_REMOTE:   /* should never happen */

      return EINVAL;

    case OBJECTS_LOCAL:

      _Objects_Close( &_POSIX_Keys_Information, &the_key->Object );

      the_key->is_active = FALSE;

      for ( the_class = OBJECTS_CLASSES_FIRST_THREAD_CLASS;

            the_class <= OBJECTS_CLASSES_LAST_THREAD_CLASS;

            the_class++ )

        if ( the_key->Values[ the_class ] )

          _Workspace_Free( the_key->Values[ the_class ] );

      /*

       *  NOTE:  The destructor is not called and it is the responsibility

       *         of the application to free the memory.

       */

      _POSIX_Keys_Free( the_key );

      _Thread_Enable_dispatch();

      return 0;

  }

  return POSIX_BOTTOM_REACHED();

}