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-rw-r--r--c/src/libfs/src/imfs/deviceio.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/c/src/libfs/src/imfs/deviceio.c b/c/src/libfs/src/imfs/deviceio.c
index f954decf6e..70b9706ada 100644
--- a/c/src/libfs/src/imfs/deviceio.c
+++ b/c/src/libfs/src/imfs/deviceio.c
@@ -17,6 +17,7 @@
#include <rtems.h>
#include <rtems/libio.h>
+#include "libio_.h"
#include "imfs.h"
@@ -213,3 +214,58 @@ int device_lseek(
*
* This IMFS_stat() is used.
*/
+
+/*
+ * device_rmnod
+ */
+
+int device_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 the rtems_filesystem_current is 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;
+
+}
+
+
+