Struct unc_vm_types::FastGasCounter

#[repr(C)]
pub struct FastGasCounter {
    pub burnt_gas: u64,
    pub gas_limit: u64,
}

Fast gas counter with very simple structure, could be exposed to compiled code in the VM. For instance by intrinsifying host functions responsible for gas metering.

Fields

burnt_gas: u64

The following three fields must be put next to another to make sure generated gas counting code can use and adjust them. We will share counter to ensure we never miss synchronization. This could change and in such a case synchronization required between compiled WASM code and the host code. The amount of gas that was irreversibly used for contract execution.

gas_limit: u64

Hard gas limit for execution

Implementations

impl FastGasCounter

pub fn new(limit: u64) -> Self

New fast gas counter.

pub fn burnt(&self) -> u64

Amount of gas burnt, maybe load as atomic to avoid aliasing issues.

Trait Implementations

impl Clone for FastGasCounter

fn clone(&self) -> FastGasCounter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FastGasCounter

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

Formats the value using the given formatter.

impl Display for FastGasCounter

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

Formats the value using the given formatter.

impl PartialEq for FastGasCounter

fn eq(&self, other: &FastGasCounter) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for FastGasCounter

impl StructuralPartialEq for FastGasCounter