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Extract Runtime Constants into Separate Crates (#4456)

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* kusama-runtime-constants created

* polkadot_runtime_constants added

* runtime constants extracted

* update node

* cargo +nightly fmt

* Delete constants.rs

* update Cargo.toml

* 2021

* runtime constants update

* utils

* utils

* node test service

* Update runtime/rococo/constants/Cargo.toml

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* runtime-native

* bridge messages

* re-export DOLLARS

* Update runtime/westend/Cargo.toml

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Update runtime/test-runtime/Cargo.toml

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* std feature

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
This commit is contained in:
Doordashcon
2021-12-11 08:10:32 +01:00
committed by GitHub
parent 7c5249c951
commit 11d343e258
28 changed files with 238 additions and 36 deletions
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polkadot/runtime/westend/src/constants.rs
-115
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@@ -1,115 +0,0 @@
// Copyright 2019-2020 Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Polkadot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
/// Money matters.
pub mod currency {
use primitives::v0::Balance;
pub const UNITS: Balance = 1_000_000_000_000;
pub const CENTS: Balance = UNITS / 100;
pub const MILLICENTS: Balance = CENTS / 1_000;
pub const GRAND: Balance = CENTS * 100_000;
pub const fn deposit(items: u32, bytes: u32) -> Balance {
items as Balance * 100 * CENTS + (bytes as Balance) * 5 * MILLICENTS
}
}
/// Time and blocks.
pub mod time {
use primitives::v0::{BlockNumber, Moment};
pub const MILLISECS_PER_BLOCK: Moment = 6000;
pub const SLOT_DURATION: Moment = MILLISECS_PER_BLOCK;
pub const EPOCH_DURATION_IN_SLOTS: BlockNumber = 1 * HOURS;
// These time units are defined in number of blocks.
pub const MINUTES: BlockNumber = 60_000 / (MILLISECS_PER_BLOCK as BlockNumber);
pub const HOURS: BlockNumber = MINUTES * 60;
pub const DAYS: BlockNumber = HOURS * 24;
// 1 in 4 blocks (on average, not counting collisions) will be primary babe blocks.
pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);
}
/// Fee-related.
pub mod fee {
use frame_support::weights::{
WeightToFeeCoefficient, WeightToFeeCoefficients, WeightToFeePolynomial,
};
use primitives::v1::Balance;
use runtime_common::ExtrinsicBaseWeight;
use smallvec::smallvec;
pub use sp_runtime::Perbill;
/// The block saturation level. Fees will be updates based on this value.
pub const TARGET_BLOCK_FULLNESS: Perbill = Perbill::from_percent(25);
/// 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,` MAXIMUM_BLOCK_WEIGHT`]
/// - [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 WeightToFeePolynomial for WeightToFee {
type Balance = Balance;
fn polynomial() -> WeightToFeeCoefficients<Self::Balance> {
// in Westend, extrinsic base weight (smallest non-zero weight) is mapped to 1/10 CENT:
let p = super::currency::CENTS;
let q = 10 * Balance::from(ExtrinsicBaseWeight::get());
smallvec![WeightToFeeCoefficient {
degree: 1,
negative: false,
coeff_frac: Perbill::from_rational(p % q, q),
coeff_integer: p / q,
}]
}
}
}
#[cfg(test)]
mod tests {
use super::{
currency::{CENTS, MILLICENTS},
fee::WeightToFee,
};
use frame_support::weights::WeightToFeePolynomial;
use runtime_common::{ExtrinsicBaseWeight, MAXIMUM_BLOCK_WEIGHT};
#[test]
// This function tests that the fee for `MAXIMUM_BLOCK_WEIGHT` of weight is correct
fn full_block_fee_is_correct() {
// A full block should cost 1,600 CENTS
println!("Base: {}", ExtrinsicBaseWeight::get());
let x = WeightToFee::calc(&MAXIMUM_BLOCK_WEIGHT);
let y = 16 * 100 * CENTS;
assert!(x.max(y) - x.min(y) < MILLICENTS);
}
#[test]
// This function tests that the fee for `ExtrinsicBaseWeight` of weight is correct
fn extrinsic_base_fee_is_correct() {
// `ExtrinsicBaseWeight` should cost 1/10 of a CENT
println!("Base: {}", ExtrinsicBaseWeight::get());
let x = WeightToFee::calc(&ExtrinsicBaseWeight::get());
let y = CENTS / 10;
assert!(x.max(y) - x.min(y) < MILLICENTS);
}
}
polkadot/runtime/westend/src/lib.rs
+1 -2
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@@ -98,8 +98,7 @@ pub use pallet_timestamp::Call as TimestampCall;
pub use sp_runtime::BuildStorage;
/// Constant values used within the runtime.
pub mod constants;
use constants::{currency::*, fee::*, time::*};
use westend_runtime_constants::{currency::*, fee::*, time::*};
// Weights used in the runtime
mod weights;