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Ext2FS: Factor out block list generation and writing into functions.

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This commit is contained in:
Andreas Kling 2019-01-23 02:45:25 +01:00
parent 6fb4033709
commit 29dfb4ae13
3 changed files with 89 additions and 6 deletions
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11
VirtualFileSystem/Ext2FileSystem.h
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@ -93,6 +93,7 @@ private:
unsigned group_index_from_inode(unsigned) const;
Vector<unsigned> block_list_for_inode(const ext2_inode&, bool include_block_list_blocks = false) const;
bool write_block_list_for_inode(InodeIndex, ext2_inode&, Vector<BlockIndex>&&);
void dump_block_bitmap(unsigned groupIndex) const;
void dump_inode_bitmap(unsigned groupIndex) const;
@ -109,6 +110,16 @@ private:
void uncache_inode(InodeIndex);
void free_inode(Ext2FSInode&);
struct BlockListShape {
unsigned direct_blocks { 0 };
unsigned indirect_blocks { 0 };
unsigned doubly_indirect_blocks { 0 };
unsigned triply_indirect_blocks { 0 };
unsigned meta_blocks { 0 };
};
BlockListShape compute_block_list_shape(unsigned blocks);
unsigned m_blockGroupCount { 0 };
mutable ByteBuffer m_cached_super_block;