Struct Cache 

pub struct Cache {
    pub sled_db: Db,
    pub scanned_blocks: Tree,
    pub state_inverse_diff: Tree,
    pub merkle_trees: Tree,
    pub money_smt: Tree,
}

Structure holding all sled trees that define the blockchain cache.

Fields

sled_db: Db

Main pointer to the sled db connection

scanned_blocks: Tree

The sled tree storing the scanned blocks from the blockchain, where the key is the height number, and the value is the blocks’ hash.

state_inverse_diff: Tree

The sled tree storing each blocks’ full database state inverse changes, where the key is the block height number, and the value is the serialized database inverse diff.

merkle_trees: Tree

The sled tree storing the merkle trees of the blockchain, where the key is the tree name, and the value is the serialized merkle tree itself.

money_smt: Tree

The sled tree storing the Sparse Merkle Tree of the Money contract.

Implementations

impl Cache

pub fn new(db: &Db) -> Result<Self>

Instantiate a new Cache with the given sled database.

pub fn insert_merkle_trees(&self, trees: &[(&[u8], &MerkleTree)]) -> Result<()>

Execute an atomic sled batch corresponding to inserts to the merkle trees tree. For each record, the bytes slice is used as the key, and the serialized merkle tree is used as value.

pub fn insert_state_inverse_diff( &self, height: &u32, diff: &SledDbOverlayStateDiff, ) -> Result<()>

Insert a u32 and a block inverse diff into store’s inverse diffs tree. The block height is used as the key, and the serialized database inverse diff is used as value.

pub fn get_state_inverse_diff( &self, height: &u32, ) -> Result<SledDbOverlayStateDiff>

Fetch given block height number from the store’s state inverse diffs tree. The function will fail if the block height number was not found.

Trait Implementations

impl Clone for Cache

fn clone(&self) -> Cache

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.