mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 18:07:58 +00:00
Vivek Pandya
bc53b9a03a
* Change copyright year to 2023 from 2022 * Fix incorrect update of copyright year * Remove years from copy right header * Fix remaining files * Fix typo in a header and remove update-copyright.sh
78 lines
3.2 KiB
Rust
78 lines
3.2 KiB
Rust
// This file is part of Substrate.
|
|
|
|
// Copyright (C) Parity Technologies (UK) Ltd.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
//! A set of constant values used in substrate runtime.
|
|
|
|
/// Money matters.
|
|
pub mod currency {
|
|
use node_primitives::Balance;
|
|
|
|
pub const MILLICENTS: Balance = 1_000_000_000;
|
|
pub const CENTS: Balance = 1_000 * MILLICENTS; // assume this is worth about a cent.
|
|
pub const DOLLARS: Balance = 100 * CENTS;
|
|
|
|
pub const fn deposit(items: u32, bytes: u32) -> Balance {
|
|
items as Balance * 15 * CENTS + (bytes as Balance) * 6 * CENTS
|
|
}
|
|
}
|
|
|
|
/// Time.
|
|
pub mod time {
|
|
use node_primitives::{BlockNumber, Moment};
|
|
|
|
/// Since BABE is probabilistic this is the average expected block time that
|
|
/// we are targeting. Blocks will be produced at a minimum duration defined
|
|
/// by `SLOT_DURATION`, but some slots will not be allocated to any
|
|
/// authority and hence no block will be produced. We expect to have this
|
|
/// block time on average following the defined slot duration and the value
|
|
/// of `c` configured for BABE (where `1 - c` represents the probability of
|
|
/// a slot being empty).
|
|
/// This value is only used indirectly to define the unit constants below
|
|
/// that are expressed in blocks. The rest of the code should use
|
|
/// `SLOT_DURATION` instead (like the Timestamp pallet for calculating the
|
|
/// minimum period).
|
|
///
|
|
/// If using BABE with secondary slots (default) then all of the slots will
|
|
/// always be assigned, in which case `MILLISECS_PER_BLOCK` and
|
|
/// `SLOT_DURATION` should have the same value.
|
|
///
|
|
/// <https://research.web3.foundation/en/latest/polkadot/block-production/Babe.html#-6.-practical-results>
|
|
pub const MILLISECS_PER_BLOCK: Moment = 3000;
|
|
pub const SECS_PER_BLOCK: Moment = MILLISECS_PER_BLOCK / 1000;
|
|
|
|
// NOTE: Currently it is not possible to change the slot duration after the chain has started.
|
|
// Attempting to do so will brick block production.
|
|
pub const SLOT_DURATION: Moment = MILLISECS_PER_BLOCK;
|
|
|
|
// 1 in 4 blocks (on average, not counting collisions) will be primary BABE blocks.
|
|
pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);
|
|
|
|
// NOTE: Currently it is not possible to change the epoch duration after the chain has started.
|
|
// Attempting to do so will brick block production.
|
|
pub const EPOCH_DURATION_IN_BLOCKS: BlockNumber = 10 * MINUTES;
|
|
pub const EPOCH_DURATION_IN_SLOTS: u64 = {
|
|
const SLOT_FILL_RATE: f64 = MILLISECS_PER_BLOCK as f64 / SLOT_DURATION as f64;
|
|
|
|
(EPOCH_DURATION_IN_BLOCKS as f64 * SLOT_FILL_RATE) as u64
|
|
};
|
|
|
|
// These time units are defined in number of blocks.
|
|
pub const MINUTES: BlockNumber = 60 / (SECS_PER_BLOCK as BlockNumber);
|
|
pub const HOURS: BlockNumber = MINUTES * 60;
|
|
pub const DAYS: BlockNumber = HOURS * 24;
|
|
}
|