Struct grin_chain::txhashset::UTXOView

pub struct UTXOView<'a> { /* fields omitted */ }

Readonly view of the UTXO set (based on output MMR).

Methods

impl<'a> UTXOView<'a>

pub fn new(
    output_pmmr: ReadonlyPMMR<'a, Output, PMMRBackend<Output>>,
    header_pmmr: ReadonlyPMMR<'a, BlockHeader, PMMRBackend<BlockHeader>>,
    rproof_pmmr: ReadonlyPMMR<'a, RangeProof, PMMRBackend<RangeProof>>,
    batch: &'a Batch
) -> UTXOView<'a>

Build a new UTXO view.

pub fn validate_block(&self, block: &Block) -> Result<(), Error>

Validate a block against the current UTXO set. Every input must spend an output that currently exists in the UTXO set. No duplicate outputs.

pub fn validate_tx(&self, tx: &Transaction) -> Result<(), Error>

Validate a transaction against the current UTXO set. Every input must spend an output that currently exists in the UTXO set. No duplicate outputs.

pub fn get_unspent_output_at(&self, pos: u64) -> Result<Output, Error>

Retrieves an unspent output using its PMMR position

pub fn verify_coinbase_maturity(
    &self,
    inputs: &Vec<Input>,
    height: u64
) -> Result<(), Error>

Verify we are not attempting to spend any coinbase outputs that have not sufficiently matured.

pub fn get_header_by_height(&self, height: u64) -> Result<BlockHeader, Error>

Get the header at the specified height based on the current state of the extension. Derives the MMR pos from the height (insertion index) and retrieves the header hash. Looks the header up in the db by hash.