Changeset 9b9d37bb in mainline for uspace/lib/ext4/libext4_directory.h

Timestamp:

2011-10-06T09:48:53Z (14 years ago)

Author:

Frantisek Princ <frantisek.princ@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

1114173

Parents:

3712434

Message:

mounting + list of mounted directory (ported from ext2) - many TODO remaining

File:

• uspace/lib/ext4/libext4_directory.h (modified) (1 diff)

uspace/lib/ext4/libext4_directory.h

@@ -34 +34 @@
 #define LIBEXT4_LIBEXT4_DIRECTORY_H_
 
+#include "libext4_filesystem.h"
+#include "libext4_inode.h"
+
+/**
+ * Linked list directory entry structure
+ */
+typedef struct ext4_directory_entry_ll {
+        uint32_t inode; // Inode for the entry
+        uint16_t entry_length; // Distance to the next directory entry
+        uint8_t name_length; // Lower 8 bits of name length
+        union {
+                uint8_t name_length_high; // Higher 8 bits of name length
+                uint8_t inode_type; // Type of referenced inode (in rev >= 0.5)
+        } __attribute__ ((packed));
+        uint8_t name; // First byte of name, if present
+} __attribute__ ((packed)) ext4_directory_entry_ll_t;
+
+typedef struct ext4_directory_iterator {
+        ext4_filesystem_t *fs;
+        ext4_inode_ref_t *inode_ref;
+        block_t *current_block;
+        aoff64_t current_offset;
+        ext4_directory_entry_ll_t *current;
+} ext4_directory_iterator_t;
+
+extern uint32_t ext4_directory_entry_ll_get_inode(ext4_directory_entry_ll_t *);
+extern uint16_t ext4_directory_entry_ll_get_entry_length(
+    ext4_directory_entry_ll_t *);
+extern uint16_t ext4_directory_entry_ll_get_name_length(
+    ext4_superblock_t *, ext4_directory_entry_ll_t *);
+
+extern int ext4_directory_iterator_init(ext4_directory_iterator_t *,
+                ext4_filesystem_t *, ext4_inode_ref_t *, aoff64_t);
+extern int ext4_directory_iterator_next(ext4_directory_iterator_t *);
+extern int ext4_directory_iterator_seek(ext4_directory_iterator_t *, aoff64_t pos);
+extern int ext4_directory_iterator_fini(ext4_directory_iterator_t *);
 
 #endif