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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [posix/] [inline/] [rtems/] [posix/] [mutex.inl] - Blame information for rev 173

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/*  rtems/posix/mutex.inl
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 *
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 *  This include file contains the static inline implementation of the private
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 *  inlined routines for POSIX mutex's.
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: mutex.inl,v 1.2 2001-09-27 11:59:14 chris Exp $
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 */
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#ifndef __RTEMS_POSIX_MUTEX_inl
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#define __RTEMS_POSIX_MUTEX_inl
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/*PAGE
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 *
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 *  _POSIX_Mutex_Allocate
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 */
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RTEMS_INLINE_ROUTINE POSIX_Mutex_Control *_POSIX_Mutex_Allocate( void )
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{
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  return (POSIX_Mutex_Control *) _Objects_Allocate( &_POSIX_Mutex_Information );
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}
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/*PAGE
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 *
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 *  _POSIX_Mutex_Free
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 */
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RTEMS_INLINE_ROUTINE void _POSIX_Mutex_Free (
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  POSIX_Mutex_Control *the_mutex
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)
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{
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  _Objects_Free( &_POSIX_Mutex_Information, &the_mutex->Object );
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}
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/*PAGE
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 *
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 *  _POSIX_Mutex_Get
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 */
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RTEMS_INLINE_ROUTINE POSIX_Mutex_Control *_POSIX_Mutex_Get (
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  Objects_Id        *id,
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  Objects_Locations *location
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)
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{
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  int status;
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  if ( !id ) {
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    *location = OBJECTS_ERROR;
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    return (POSIX_Mutex_Control *) 0;
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  }
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  if ( *id == PTHREAD_MUTEX_INITIALIZER ) {
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    /*
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     *  Do an "auto-create" here.
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     */
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    status = pthread_mutex_init( id, 0 );
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    if ( status ) {
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      *location = OBJECTS_ERROR;
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      return (POSIX_Mutex_Control *) 0;
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    }
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  }
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  /*
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   *  Now call Objects_Get()
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   */
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  return (POSIX_Mutex_Control *)
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    _Objects_Get( &_POSIX_Mutex_Information, *id, location );
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}
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/*PAGE
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 *
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 *  _POSIX_Mutex_Is_null
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 */
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RTEMS_INLINE_ROUTINE boolean _POSIX_Mutex_Is_null (
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  POSIX_Mutex_Control *the_mutex
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)
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{
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  return !the_mutex;
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}
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#endif
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/*  end of include file */
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