Struct common_runtime::fees::FeeMultiplier

pub struct FeeMultiplier<Runtime, Target, MaxMultiplier>(PhantomData<Runtime>, PhantomData<Target>, PhantomData<MaxMultiplier>);

A structure to implement fee multiplier adjustments.

• Runtime: The system configuration type.
• Target: A type providing the target block fullness.
• MaxMultiplier: A type providing the maximum multiplier value.

Tuple Fields

0: PhantomData<Runtime>

1: PhantomData<Target>

2: PhantomData<MaxMultiplier>

Trait Implementations

impl<Runtime, Target, MaxMultiplier> Convert<FixedU128, FixedU128> for FeeMultiplier<Runtime, Target, MaxMultiplier>

where Runtime: Config, Target: Get<Perquintill>, MaxMultiplier: Get<Multiplier>,

Trait implementation for converting previous Multiplier to another for fee adjustment.

fn convert(previous: Multiplier) -> Multiplier

Function to convert the previous fee multiplier to a new fee multiplier.

This function adjusts the fee multiplier based on the current block weight, length and target block fullness.

• If the current block weight and length are less than the target, it decreases the multiplier by one, with a minimum of one.
• If the current block weight or length is more than the target, it increases the multiplier by one, up to the maximum multiplier.

impl<Runtime, Target, MaxMultiplier> MultiplierUpdate for FeeMultiplier<Runtime, Target, MaxMultiplier>

where Runtime: Config, Target: Get<Perquintill>, MaxMultiplier: Get<Multiplier>,

Trait implementation for updating the fee multiplier.

fn min() -> Multiplier

Minimum multiplier. Any outcome of the convert function should be at least this.

fn max() -> Multiplier

Maximum multiplier. Any outcome of the convert function should be less or equal this.

fn target() -> Perquintill

Target block saturation level

fn variability() -> Multiplier

Variability factor