Add Statemint (#452)

* Add Statemint * Versioning. * Fixes * Fixes * Fixes * Fixes * Fixes * Benchmarking * kick patch (paritytech/statemin#88) * Westmint Chain Spec (paritytech/statemint#90) * Tidy the common .toml * Update weights * add westmint sudo key comment * Port consensus stuff * fix typo * fix typo ... again * Recognise Westmint Co-authored-by: Alexander Popiak <alexander.popiak@parity.io> Co-authored-by: Bastian Köcher <info@kchr.de>
2026-05-30 16:21:02 +00:00 · 2021-06-01 20:31:03 +01:00
parent 540e74d33c
commit 9d9ed1bc84
54 changed files with 8419 additions and 227 deletions
@@ -0,0 +1,87 @@
+// Copyright (C) 2021 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.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+pub mod impls;
+pub use types::*;
+pub use constants::*;
+
+/// Common types of statemint and statemine.
+mod types {
+	use sp_runtime::traits::{Verify, IdentifyAccount, BlakeTwo256};
+
+	/// An index to a block.
+	pub type BlockNumber = u32;
+
+	/// Alias to 512-bit hash when used in the context of a transaction signature on the chain.
+	pub type Signature = sp_runtime::MultiSignature;
+
+	/// Some way of identifying an account on the chain. We intentionally make it equivalent
+	/// to the public key of our transaction signing scheme.
+	pub type AccountId = <<Signature as Verify>::Signer as IdentifyAccount>::AccountId;
+
+	/// The type for looking up accounts. We don't expect more than 4 billion of them, but you
+	/// never know...
+	pub type AccountIndex = u32;
+
+	/// Balance of an account.
+	pub type Balance = u128;
+
+	/// Index of a transaction in the chain.
+	pub type Index = u32;
+
+	/// A hash of some data used by the chain.
+	pub type Hash = sp_core::H256;
+
+	/// Block header type as expected by this runtime.
+	pub type Header = sp_runtime::generic::Header<BlockNumber, BlakeTwo256>;
+
+	/// Digest item type.
+	pub type DigestItem = sp_runtime::generic::DigestItem<Hash>;
+	
+	// Aura consensus authority.
+	pub type AuraId = sp_consensus_aura::sr25519::AuthorityId;
+}
+
+/// Common constants of statemint and statemine
+mod constants {
+	use super::types::BlockNumber;
+	use sp_runtime::Perbill;
+	use frame_support::weights::{Weight, constants::WEIGHT_PER_SECOND};
+	/// This determines the average expected block time that we are targeting. Blocks will be
+	/// produced at a minimum duration defined by `SLOT_DURATION`. `SLOT_DURATION` is picked up by
+	/// `pallet_timestamp` which is in turn picked up by `pallet_aura` to implement `fn
+	/// slot_duration()`.
+	///
+	/// Change this to adjust the block time.
+	pub const MILLISECS_PER_BLOCK: u64 = 12000;
+	pub const SLOT_DURATION: u64 = MILLISECS_PER_BLOCK;
+
+	// Time is measured by 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;
+
+	/// We assume that ~5% of the block weight is consumed by `on_initialize` handlers. This is
+	/// used to limit the maximal weight of a single extrinsic.
+	pub const AVERAGE_ON_INITIALIZE_RATIO: Perbill = Perbill::from_percent(5);
+	/// We allow `Normal` extrinsics to fill up the block up to 75%, the rest can be used by
+	/// Operational  extrinsics.
+	pub const NORMAL_DISPATCH_RATIO: Perbill = Perbill::from_percent(75);
+
+	/// We allow for 0.5 seconds of compute with a 6 second average block time.
+	pub const MAXIMUM_BLOCK_WEIGHT: Weight = WEIGHT_PER_SECOND / 2;
+}