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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libc/] [imfs_rmnod.c] - Rev 30
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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.OARcorp.com/rtems/license.html. * * $Id: imfs_rmnod.c,v 1.2 2001-09-27 12:01:15 chris Exp $ */ #include <rtems.h> #include <rtems/libio.h> #include "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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