Struct evm_gasometer::Gasometer

pub struct Gasometer<'config> { /* fields omitted */ }

EVM gasometer.

Implementations

impl<'config> Gasometer<'config>

pub fn new(gas_limit: u64, config: &'config Config) -> Self

Create a new gasometer with given gas limit and config.

pub fn gas_cost(&self, cost: GasCost, gas: u64) -> Result<u64, ExitError>

Returns the numerical gas cost value.

pub fn config(&self) -> &'config Config

Reference of the config.

pub fn gas(&self) -> u64

Remaining gas.

pub fn total_used_gas(&self) -> u64

Total used gas.

pub fn refunded_gas(&self) -> i64

Refunded gas.

pub fn fail(&mut self) -> ExitError

Explictly fail the gasometer with out of gas. Return OutOfGas error.

pub fn record_cost(&mut self, cost: u64) -> Result<(), ExitError>

Record an explict cost.

pub fn record_refund(&mut self, refund: i64) -> Result<(), ExitError>

Record an explict refund.

pub fn record_deposit(&mut self, len: usize) -> Result<(), ExitError>

Record CREATE code deposit.

pub fn record_dynamic_cost(
    &mut self,
    cost: GasCost,
    memory: Option<MemoryCost>
) -> Result<(), ExitError>

Record opcode gas cost.

pub fn record_stipend(&mut self, stipend: u64) -> Result<(), ExitError>

Record opcode stipend.

pub fn record_transaction(
    &mut self,
    cost: TransactionCost
) -> Result<(), ExitError>

Record transaction cost.

pub fn snapshot(&self) -> Result<Snapshot, ExitError>

Trait Implementations

impl<'config> Clone for Gasometer<'config>

fn clone(&self) -> Gasometer<'config>

Returns a copy of the value.

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

Performs copy-assignment from source.