Changes between Version 58 and Version 59 of file_system

Timestamp:

Feb 6, 2016, 6:12:53 PM (8 years ago)

Author:

alain

Comment:

--

file_system

@@ -335 +335 @@
 The block device is not modified by this function.
 
-=== __unsigned int '''_cluster_allocate'''( fat_inode_t*   inode , unsigned int*  cluster )__ ===
+=== __unsigned int '''_one_cluster_allocate'''( fat_inode_t*   inode , unsigned int*  cluster )__ ===
 This function allocates one cluster in FAT to a file (or directory) identified by the <inode> argument. The allocated cluster index is returned in the <cluster> argument. It allocates also the associated buffers and buffer descriptors in Cache-File. It calls _get_fat_entry() and _set_fat_entry() functions to update the clusters chaining in the Cache-Fat. 
-The FAT region and the FS-INFO sector on block device are updated.
-
-It returns 0 on success. It returns 1 on error.
-
-=== __unsigned int '''_clusters_release'''( fat_node_t* inode )__ ===
-This function releases all clusters allocated to a file or directory identified by the <inode> argument, until the end of the FAT linked list. It calls _get_fat_entry() and _set_fat_entry() functions to scan the FAT, and to update the clusters chaining. The FAT region and the FS-INFO sector on block device are updated.
+The FAT region and the FS-INFO sector on block device are also updated.
+
+It returns 0 on success. It returns 1 on error.
+
+=== __unsigned int '''_all_clusters_release'''( fat_node_t* inode )__ ===
+This function releases all clusters allocated to a file or directory identified by the <inode> argument, until the end of the FAT linked list. It calls the _cluster release() recursive function to release the clusters in reverse order (from last to first), using the _get_fat_entry() and _set_fat_entry() functions to access the FAT, and update the clusters chaining. The FAT region and the FS-INFO sector on block device are also updated.
 
 It returns 0 on success. It returns 1 on error.