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* Happy New Year! * Remove year entierly Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io> * Remove years from copyright notice in the entire repo --------- Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
90 lines
3.2 KiB
Rust
90 lines
3.2 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Polkadot is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Polkadot. If not, see <http://www.gnu.org/licenses/>.
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#![cfg_attr(not(feature = "std"), no_std)]
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pub mod weights;
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/// Money matters.
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pub mod currency {
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use primitives::Balance;
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pub const DOTS: Balance = 1_000_000_000_000;
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pub const DOLLARS: Balance = DOTS;
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pub const CENTS: Balance = DOLLARS / 100;
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pub const MILLICENTS: Balance = CENTS / 1_000;
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}
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/// Time and blocks.
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pub mod time {
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use primitives::{BlockNumber, Moment};
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// Testnet
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pub const MILLISECS_PER_BLOCK: Moment = 6000;
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pub const SLOT_DURATION: Moment = MILLISECS_PER_BLOCK;
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// 30 seconds for now
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pub const EPOCH_DURATION_IN_SLOTS: BlockNumber = MINUTES / 2;
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// These time units are defined in number of blocks.
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pub const MINUTES: BlockNumber = 60_000 / (MILLISECS_PER_BLOCK as BlockNumber);
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pub const HOURS: BlockNumber = MINUTES * 60;
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pub const DAYS: BlockNumber = HOURS * 24;
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// 1 in 4 blocks (on average, not counting collisions) will be primary babe blocks.
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// The choice of is done in accordance to the slot duration and expected target
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// block time, for safely resisting network delays of maximum two seconds.
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// <https://research.web3.foundation/en/latest/polkadot/BABE/Babe/#6-practical-results>
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pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);
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}
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/// Fee-related.
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pub mod fee {
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use crate::weights::ExtrinsicBaseWeight;
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use frame_support::weights::{
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WeightToFeeCoefficient, WeightToFeeCoefficients, WeightToFeePolynomial,
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};
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use primitives::Balance;
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use smallvec::smallvec;
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pub use sp_runtime::Perbill;
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/// The block saturation level. Fees will be updates based on this value.
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pub const TARGET_BLOCK_FULLNESS: Perbill = Perbill::from_percent(25);
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/// Handles converting a weight scalar to a fee value, based on the scale and granularity of the
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/// node's balance type.
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///
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/// This should typically create a mapping between the following ranges:
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/// - [0, `frame_system::MaximumBlockWeight`]
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/// - [Balance::min, Balance::max]
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///
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/// Yet, it can be used for any other sort of change to weight-fee. Some examples being:
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/// - Setting it to `0` will essentially disable the weight fee.
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/// - Setting it to `1` will cause the literal `#[weight = x]` values to be charged.
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pub struct WeightToFee;
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impl WeightToFeePolynomial for WeightToFee {
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type Balance = Balance;
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fn polynomial() -> WeightToFeeCoefficients<Self::Balance> {
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let p = super::currency::CENTS;
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let q = 10 * Balance::from(ExtrinsicBaseWeight::get().ref_time());
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smallvec![WeightToFeeCoefficient {
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degree: 1,
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negative: false,
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coeff_frac: Perbill::from_rational(p % q, q),
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coeff_integer: p / q,
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}]
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}
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}
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}
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