Struct bao_tree::io::outboard::EmptyOutboard

pub struct EmptyOutboard { /* private fields */ }

An empty outboard, that just returns 0 hashes for all nodes.

Also allows you to write and will immediately discard the data, a bit like /dev/null

Implementations

impl EmptyOutboard

pub fn new(tree: BaoTree, root: Hash) -> Self

Create a new empty outboard with the given hash and tree.

Trait Implementations

impl Debug for EmptyOutboard

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Outboard for EmptyOutboard

fn root(&self) -> Hash

The root hash

fn tree(&self) -> BaoTree

The tree. This contains the information about the size of the file and the block size.

type LoadFuture<'a> = Ready<Result<Option<(Hash, Hash)>, Error>>

Future returned by load

fn load(&mut self, node: TreeNode) -> Self::LoadFuture<'_>

load the hash pair for a node

impl Outboard for EmptyOutboard

fn root(&self) -> Hash

The root hash

fn tree(&self) -> BaoTree

The tree. This contains the information about the size of the file and the block size.

fn load(&self, node: TreeNode) -> Result<Option<(Hash, Hash)>>

load the hash pair for a node

impl OutboardMut for EmptyOutboard

fn save(&mut self, node: TreeNode, _pair: &(Hash, Hash)) -> Result<()>

Save a hash pair for a node

fn set_size(&mut self, size: ByteNum) -> Result<()>

Set the length of the file for which this outboard is