Trait Storage

source

pub trait Storage {
Show 22 methods    // Required methods
    fn root_node(&self) -> Node;
    fn get_version(&self) -> u32;
    fn new_node(&mut self) -> Node;
    fn mount_node(
        &mut self,
        node: Node,
        memory: Box<dyn Memory>,
    ) -> Result<(), Error>;
    fn unmount_node(&mut self, node: Node) -> Result<Box<dyn Memory>, Error>;
    fn is_mounted(&self, node: Node) -> bool;
    fn get_mounted_memory(&self, node: Node) -> Option<&dyn Memory>;
    fn init_mounted_memory(&mut self, node: Node) -> Result<(), Error>;
    fn store_mounted_memory(&mut self, node: Node) -> Result<(), Error>;
    fn get_metadata(&self, node: Node) -> Result<Metadata, Error>;
    fn put_metadata(&mut self, node: Node, metadata: Metadata);
    fn get_direntry(
        &self,
        node: Node,
        index: DirEntryIndex,
    ) -> Result<DirEntry, Error>;
    fn put_direntry(
        &mut self,
        node: Node,
        index: DirEntryIndex,
        entry: DirEntry,
    );
    fn rm_direntry(&mut self, node: Node, index: DirEntryIndex);
    fn read(
        &mut self,
        node: Node,
        read_offset: FileSize,
        buf: &mut [u8],
    ) -> Result<FileSize, Error>;
    fn write(
        &mut self,
        node: Node,
        offset: FileSize,
        buf: &[u8],
    ) -> Result<FileSize, Error>;
    fn rm_file(&mut self, node: Node) -> Result<(), Error>;
    fn set_chunk_size(&mut self, chunk_size: ChunkSize) -> Result<(), Error>;
    fn chunk_size(&self) -> usize;
    fn set_chunk_type(&mut self, chunk_type: ChunkType);
    fn chunk_type(&self) -> ChunkType;
    fn flush(&mut self, node: Node);
}