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/**
* @file
*
* @brief RTEMS File System Mutex
* @ingroup rtems_rfs
*/
/*
* COPYRIGHT (c) 2010 Chris Johns <chrisj@rtems.org>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rfs/rtems-rfs-mutex.h>
#if __rtems__
/**
* RTEMS_RFS Mutex Attributes
*/
#define RTEMS_RFS_MUTEX_ATTRIBS \
(RTEMS_PRIORITY | RTEMS_BINARY_SEMAPHORE | \
RTEMS_INHERIT_PRIORITY | RTEMS_NO_PRIORITY_CEILING | RTEMS_LOCAL)
#endif
int
rtems_rfs_mutex_create (rtems_rfs_mutex* mutex)
{
#if __rtems__
rtems_status_code sc;
sc = rtems_semaphore_create (rtems_build_name ('R', 'F', 'S', 'm'),
1, RTEMS_RFS_MUTEX_ATTRIBS, 0,
mutex);
if (sc != RTEMS_SUCCESSFUL)
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_MUTEX))
printf ("rtems-rfs: mutex: open failed: %s\n",
rtems_status_text (sc));
return EIO;
}
#endif
return 0;
}
int
rtems_rfs_mutex_destroy (rtems_rfs_mutex* mutex)
{
#if __rtems__
rtems_status_code sc;
sc = rtems_semaphore_delete (*mutex);
if (sc != RTEMS_SUCCESSFUL)
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_MUTEX))
printf ("rtems-rfs: mutex: close failed: %s\n",
rtems_status_text (sc));
return EIO;
}
#endif
return 0;
}
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