diff options
Diffstat (limited to 'cpukit/libfs/src/imfs/imfs_rmnod.c')
-rw-r--r-- | cpukit/libfs/src/imfs/imfs_rmnod.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/cpukit/libfs/src/imfs/imfs_rmnod.c b/cpukit/libfs/src/imfs/imfs_rmnod.c new file mode 100644 index 0000000000..25c7cde084 --- /dev/null +++ b/cpukit/libfs/src/imfs/imfs_rmnod.c @@ -0,0 +1,77 @@ +/* + * 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" + +void IMFS_create_orphan( IMFS_jnode_t *jnode ) +{ + if ( jnode->Parent != NULL ) { + rtems_chain_extract( &jnode->Node ); + jnode->Parent = NULL; + } + + --jnode->st_nlink; + + IMFS_update_ctime( jnode ); +} + +void IMFS_check_node_remove( IMFS_jnode_t *jnode ) +{ + if ( !rtems_libio_is_file_open( jnode ) && jnode->st_nlink < 1 ) { + if ( rtems_filesystem_current.node_access == jnode ) + rtems_filesystem_current.node_access = NULL; + + switch ( jnode->type ) { + case IMFS_MEMORY_FILE: + IMFS_memfile_remove( jnode ); + break; + case IMFS_SYM_LINK: + free( jnode->info.sym_link.name ); + break; + default: + break; + } + + free( jnode ); + } +} + +/* + * IMFS_rmnod + */ + +int IMFS_rmnod( + rtems_filesystem_location_info_t *parent_pathloc, /* IN */ + rtems_filesystem_location_info_t *pathloc /* IN */ +) +{ + IMFS_jnode_t *jnode = (IMFS_jnode_t *) pathloc->node_access; + + IMFS_create_orphan( jnode ); + IMFS_check_node_remove( jnode ); + + return 0; +} |