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FS: Don't default to having a full InodeMetadata in every Inode.

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This allows Ext2FS to keep its own ext2_inode around instead.
This commit is contained in:
Andreas Kling
2019-01-01 03:16:36 +01:00
parent 0cb074dc73
commit d07b08a287
8 changed files with 93 additions and 80 deletions
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15
VirtualFileSystem/FileSystem.h
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@@ -75,7 +75,7 @@ public:
bool is_directory() const { return metadata().isDirectory(); }
InodeIdentifier identifier() const { return { fsid(), index() }; }
const InodeMetadata& metadata() const { if (!m_metadata.isValid()) { populate_metadata(); } return m_metadata; }
virtual InodeMetadata metadata() const = 0;
ByteBuffer read_entire(FileDescriptor* = nullptr);
@@ -88,11 +88,11 @@ public:
bool is_metadata_dirty() const { return m_metadata_dirty; }
int set_atime(Unix::time_t);
int set_ctime(Unix::time_t);
int set_mtime(Unix::time_t);
int increment_link_count();
int decrement_link_count();
virtual int set_atime(Unix::time_t);
virtual int set_ctime(Unix::time_t);
virtual int set_mtime(Unix::time_t);
virtual int increment_link_count();
virtual int decrement_link_count();
virtual void flush_metadata() = 0;
@@ -101,10 +101,7 @@ public:
protected:
Inode(FS& fs, unsigned index);
virtual void populate_metadata() const = 0;
void set_metadata_dirty(bool b) { m_metadata_dirty = b; }
mutable InodeMetadata m_metadata;
private:
FS& m_fs;
unsigned m_index { 0 };