mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-30 03:47:57 +00:00
Keith Yeung
b5a7ab4d12
* Support overweight messages in XCMP queue * Add storage migration logic to XCMP queue pallet * Check whether required weight is larger than max individual weight first * cargo fmt * Add some unit tests * Remove review question comment
129 lines
3.8 KiB
Rust
129 lines
3.8 KiB
Rust
// Copyright 2021 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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//! A module that is responsible for migration of storage.
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use crate::{Config, Pallet, Store};
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use frame_support::{pallet_prelude::*, traits::StorageVersion, weights::Weight};
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/// The current storage version.
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pub const STORAGE_VERSION: StorageVersion = StorageVersion::new(1);
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/// Migrates the pallet storage to the most recent version, checking and setting the
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/// `StorageVersion`.
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pub fn migrate_to_latest<T: Config>() -> Weight {
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let mut weight = 0;
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if StorageVersion::get::<Pallet<T>>() == 0 {
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weight += migrate_to_v1::<T>();
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StorageVersion::new(1).put::<Pallet<T>>();
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}
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weight
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}
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mod v0 {
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use super::*;
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use codec::{Decode, Encode};
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#[derive(Encode, Decode, Debug)]
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pub struct QueueConfigData {
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pub suspend_threshold: u32,
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pub drop_threshold: u32,
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pub resume_threshold: u32,
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pub threshold_weight: Weight,
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pub weight_restrict_decay: Weight,
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}
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impl Default for QueueConfigData {
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fn default() -> Self {
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QueueConfigData {
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suspend_threshold: 2,
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drop_threshold: 5,
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resume_threshold: 1,
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threshold_weight: 100_000,
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weight_restrict_decay: 2,
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}
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}
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}
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}
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/// Migrates `QueueConfigData` from v0 (without the `xcmp_max_individual_weight` field) to v1 (with
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/// max individual weight).
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/// Uses the `Default` implementation of `QueueConfigData` to choose a value for
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/// `xcmp_max_individual_weight`.
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///
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/// NOTE: Only use this function if you know what you're doing. Default to using
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/// `migrate_to_latest`.
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pub fn migrate_to_v1<T: Config>() -> Weight {
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let translate = |pre: v0::QueueConfigData| -> super::QueueConfigData {
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super::QueueConfigData {
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suspend_threshold: pre.suspend_threshold,
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drop_threshold: pre.drop_threshold,
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resume_threshold: pre.resume_threshold,
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threshold_weight: pre.threshold_weight,
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weight_restrict_decay: pre.weight_restrict_decay,
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xcmp_max_individual_weight: super::QueueConfigData::default()
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.xcmp_max_individual_weight,
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}
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};
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if let Err(_) = <Pallet<T> as Store>::QueueConfig::translate(|pre| pre.map(translate)) {
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log::error!(
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target: super::LOG_TARGET,
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"unexpected error when performing translation of the QueueConfig type during storage upgrade to v1"
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);
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}
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T::DbWeight::get().reads_writes(1, 1)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::mock::{new_test_ext, Test};
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#[test]
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fn test_migration_to_v1() {
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let v0 = v0::QueueConfigData {
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suspend_threshold: 5,
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drop_threshold: 12,
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resume_threshold: 3,
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threshold_weight: 333_333,
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weight_restrict_decay: 1,
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};
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new_test_ext().execute_with(|| {
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// Put the v0 version in the state
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frame_support::storage::unhashed::put_raw(
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&crate::QueueConfig::<Test>::hashed_key(),
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&v0.encode(),
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);
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migrate_to_v1::<Test>();
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let v1 = crate::QueueConfig::<Test>::get();
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assert_eq!(v0.suspend_threshold, v1.suspend_threshold);
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assert_eq!(v0.drop_threshold, v1.drop_threshold);
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assert_eq!(v0.resume_threshold, v1.resume_threshold);
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assert_eq!(v0.threshold_weight, v1.threshold_weight);
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assert_eq!(v0.weight_restrict_decay, v1.weight_restrict_decay);
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assert_eq!(v1.xcmp_max_individual_weight, 20_000_000_000);
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});
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}
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}
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