mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-04 15:07:23 +00:00
Gavin Wood
adc238ad86
* Remove unused relaying XCM * Aggregate HRMP (XCMP/HMP) messages. Payloads for spambot. * Revert lock * Fix * Broken example * Introduce fee payment mechanics into XCM. * Weight limitations on XCM execution * Mock environment for tests and the first test * Tests for XCM and a few refactors. * Remove code that's not ready * Fix for an XCM and an additional test * Query response system * XCMP message dispatch system reimagining - Moved most of the logic into xcm-handler pallet - Altered the outgoing XCMP API from push to pull - Changed underlying outgoing queue data structures to avoid multi-page read/writes - Introduced queuing for incoming messages - Introduced signal messages as a flow-control sub-stream - Introduced flow-control with basic threshold back-pressure - Introduced overall weight limitation on messages executed - Additonal alterations to XCM APIs for the new system * Some build fixes * Remove the Encode bounds sprayed around * More faff * Fix bounds amek use latest scale codec. * remove println * fixes * Fix XcmExecutor Tests * Fix XCM bounds using derivative crate * Refactor names of XcmGeneric &c into Xcm * Repot the xcm-executor into xcm-builder * Docs * Docs * Fixes * Update xcm/src/lib.rs Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com> * Fixes * Docs * Update runtime/parachains/src/ump.rs Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com> * Docs * Fixes * Fixes * Fixes * Docs * Fixes * Fixes * Introduce transfer_asset specialisation. * Fixes * Fixes Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
61 lines
2.3 KiB
Rust
61 lines
2.3 KiB
Rust
// Copyright 2020 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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use sp_std::result::Result;
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use xcm::v0::{Xcm, MultiLocation};
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use frame_support::weights::Weight;
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/// Trait to determine whether the execution engine should actually execute a given XCM.
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pub trait ShouldExecute {
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/// Returns `true` if the given `message` may be executed.
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///
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/// - `origin`: The origin (sender) of the message.
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/// - `top_level`: `true`` indicates the initial XCM coming from the `origin`, `false` indicates an embedded
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/// XCM executed internally as part of another message or an `Order`.
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/// - `message`: The message itself.
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/// - `shallow_weight`: The weight of the non-negotiable execution of the message. This does not include any
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/// embedded XCMs sat behind mechanisms like `BuyExecution` which would need to answer for their own weight.
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/// - `weight_credit`: The pre-established amount of weight that the system has determined this message
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/// may utilise in its execution. Typically non-zero only because of prior fee payment, but could
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/// in principle be due to other factors.
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fn should_execute<Call>(
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origin: &MultiLocation,
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top_level: bool,
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message: &Xcm<Call>,
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shallow_weight: Weight,
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weight_credit: &mut Weight,
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) -> Result<(), ()>;
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}
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#[impl_trait_for_tuples::impl_for_tuples(30)]
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impl ShouldExecute for Tuple {
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fn should_execute<Call>(
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origin: &MultiLocation,
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top_level: bool,
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message: &Xcm<Call>,
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shallow_weight: Weight,
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weight_credit: &mut Weight,
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) -> Result<(), ()> {
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for_tuples!( #(
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match Tuple::should_execute(origin, top_level, message, shallow_weight, weight_credit) {
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o @ Ok(()) => return o,
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_ => (),
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}
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)* );
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Err(())
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}
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}
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