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Separate WeightToFee calculation for Kusama and Polkadot (#854)

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* Separate `WeightToFee` calculation for Kusama and Polkadot

* Bump spec
This commit is contained in:
Shawn Tabrizi
2020-02-19 22:23:50 +01:00
committed by GitHub
parent b642c4b197
commit c01ef7198f
6 changed files with 48 additions and 27 deletions
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polkadot/runtime/common/src/impls.rs
-21
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@@ -16,10 +16,8 @@
//! Auxillary struct/enums for polkadot runtime.
use primitives::Balance;
use sp_runtime::traits::{Convert, Saturating};
use sp_runtime::{Fixed64, Perbill};
use frame_support::weights::Weight;
use frame_support::traits::{OnUnbalanced, Imbalance, Currency, Get};
use crate::{MaximumBlockWeight, NegativeImbalance};
@@ -75,25 +73,6 @@ where
fn convert(x: u128) -> u128 { x * Self::factor() }
}
/// Handles converting a weight scalar to a fee value, based on the scale and granularity of the
/// node's balance type.
///
/// This should typically create a mapping between the following ranges:
/// - [0, system::MaximumBlockWeight]
/// - [Balance::min, Balance::max]
///
/// Yet, it can be used for any other sort of change to weight-fee. Some examples being:
/// - Setting it to `0` will essentially disable the weight fee.
/// - Setting it to `1` will cause the literal `#[weight = x]` values to be charged.
pub struct WeightToFee;
impl Convert<Weight, Balance> for WeightToFee {
fn convert(x: Weight) -> Balance {
// in Polkadot a weight of 10_000 (smallest non-zero weight) to be mapped to 10^7 units of
// fees (1/10 CENT), hence:
Balance::from(x).saturating_mul(1_000)
}
}
/// Update the given multiplier based on the following formula
///
/// diff = (target_weight - previous_block_weight)