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/*
* IMFS Node Removal Handler
*
* This file contains the handler used to remove a node when a file type
* does not require special actions.
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* 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.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <rtems.h>
#include <rtems/libio.h>
#include <rtems/libio_.h>
#include "imfs.h"
/*
* IMFS_rmnod
*/
int IMFS_rmnod(
rtems_filesystem_location_info_t *pathloc /* IN */
)
{
IMFS_jnode_t *the_jnode;
the_jnode = (IMFS_jnode_t *) pathloc->node_access;
/*
* Take the node out of the parent's chain that contains this node
*/
if ( the_jnode->Parent != NULL ) {
Chain_Extract( (Chain_Node *) the_jnode );
the_jnode->Parent = NULL;
}
/*
* Decrement the link counter and see if we can free the space.
*/
the_jnode->st_nlink--;
IMFS_update_ctime( the_jnode );
/*
* The file cannot be open and the link must be less than 1 to free.
*/
if ( !rtems_libio_is_file_open( the_jnode ) && (the_jnode->st_nlink < 1) ) {
/*
* Is rtems_filesystem_current this node?
*/
if ( rtems_filesystem_current.node_access == pathloc->node_access )
rtems_filesystem_current.node_access = NULL;
/*
* Free memory associated with a memory file.
*/
free( the_jnode );
}
return 0;
}
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