Changeset d5a78e28 in mainline for uspace/lib/ext4

Timestamp:

2011-11-05T17:09:25Z (14 years ago)

Author:

Frantisek Princ <frantisek.princ@…>

Branches:

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

Children:

3569955

Parents:

a9a0982

Message:

file truncate skeleton, but non functional

Location:

uspace/lib/ext4

Files:

• libext4_filesystem.c (modified) (1 diff)
• libext4_filesystem.h (modified) (1 diff)
• libext4_inode.c (modified) (1 diff)
• libext4_inode.h (modified) (1 diff)

uspace/lib/ext4/libext4_filesystem.c

@@ -354 +354 @@
 }
 
+
+int ext4_filesystem_release_inode_block(ext4_filesystem_t *fs, ext4_inode_t *inode, uint32_t iblock)
+{
+        int rc;
+        uint32_t fblock;
+
+        // TODO handle with extents
+
+        rc = ext4_filesystem_get_inode_data_block_index(fs, inode, iblock, &fblock);
+        if (rc != EOK) {
+                // TODO error
+                return rc;
+        }
+
+        // Sparse file
+        if (fblock == 0) {
+
+                //
+                return EOK;
+        }
+
+
+        // TODO vyhledat policko s ukazatelem a nastavit nulu
+
+
+        // TODO uvolnit blok v bitmape
+
+        // TODO return
+
+
+        return EOK;
+}
+
+
 /**
  * @}

uspace/lib/ext4/libext4_filesystem.h

@@ -62 +62 @@
 extern int ext4_filesystem_get_inode_data_block_index(ext4_filesystem_t *,
         ext4_inode_t *, aoff64_t iblock, uint32_t *);
-
+extern int ext4_filesystem_release_inode_block(ext4_filesystem_t *,
+                ext4_inode_t *, uint32_t);
 #endif
 

uspace/lib/ext4/libext4_inode.c

@@ -98 +98 @@
 }
 
+void ext4_inode_set_direct_block(ext4_inode_t *inode, uint8_t idx, uint32_t fblock)
+{
+        assert(idx < EXT4_INODE_DIRECT_BLOCK_COUNT);
+        inode->blocks[idx] = host2uint32_t_le(fblock);
+}
+
 uint32_t ext4_inode_get_indirect_block(ext4_inode_t *inode, uint8_t idx)
 {

uspace/lib/ext4/libext4_inode.h

@@ -166 +166 @@
 extern uint32_t ext4_inode_get_flags(ext4_inode_t *);
 
-uint32_t ext4_inode_get_direct_block(ext4_inode_t *, uint8_t);
-uint32_t ext4_inode_get_indirect_block(ext4_inode_t *, uint8_t);
-uint32_t ext4_inode_get_extent_block(ext4_inode_t *, uint64_t, service_id_t);
+extern uint32_t ext4_inode_get_direct_block(ext4_inode_t *, uint8_t);
+extern void ext4_inode_set_direct_block(ext4_inode_t *, uint8_t, uint32_t);
+extern uint32_t ext4_inode_get_indirect_block(ext4_inode_t *, uint8_t);
+extern uint32_t ext4_inode_get_extent_block(ext4_inode_t *, uint64_t, service_id_t);
 /*
 uint32_t blocks[EXT4_INODE_BLOCKS]; // Pointers to blocks