mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-26 13:31:07 +00:00
Robert Klotzner
78ac4b7add
* WIP: Whole subsystem test. * New tests compile. * Avoid needless runtime queries for no validator nodes. * Make tx and rx publicly accessible in virtual overseer. This simplifies mocking in some cases, as tx can be cloned, but rx can not. * Whole subsystem test working. * Update node/network/availability-distribution/src/session_cache.rs Co-authored-by: Andronik Ordian <write@reusable.software> * Update node/network/availability-distribution/src/session_cache.rs Co-authored-by: Andronik Ordian <write@reusable.software> * Document better what `None` return value means. * Get rid of BitVec dependency. * Update Cargo.lock * Hopefully fixed implementers guide build. Co-authored-by: Andronik Ordian <write@reusable.software>
94 lines
2.8 KiB
Rust
94 lines
2.8 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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//
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//! Error handling related code and Error/Result definitions.
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use thiserror::Error;
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use futures::channel::oneshot;
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use polkadot_node_subsystem_util::Error as UtilError;
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use polkadot_primitives::v1::SessionIndex;
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use polkadot_subsystem::{errors::RuntimeApiError, SubsystemError};
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/// Errors of this subsystem.
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#[derive(Debug, Error)]
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pub enum Error {
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#[error("Response channel to obtain QueryChunk failed")]
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QueryChunkResponseChannel(#[source] oneshot::Canceled),
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#[error("Receive channel closed")]
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IncomingMessageChannel(#[source] SubsystemError),
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/// Some request to utility functions failed.
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#[error("Runtime request failed")]
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UtilRequest(#[source] UtilError),
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/// Some request to the runtime failed.
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#[error("Runtime request failed")]
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RuntimeRequestCanceled(#[source] oneshot::Canceled),
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/// Some request to the runtime failed.
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#[error("Runtime request failed")]
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RuntimeRequest(#[source] RuntimeApiError),
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/// We tried fetching a session which was not available.
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#[error("No such session")]
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NoSuchSession(SessionIndex),
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/// Spawning a running task failed.
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#[error("Spawning subsystem task failed")]
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SpawnTask(#[source] SubsystemError),
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/// We tried accessing a session that was not cached.
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#[error("Session is not cached.")]
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NoSuchCachedSession,
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/// We tried reporting bad validators, although we are not a validator ourselves.
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#[error("Not a validator.")]
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NotAValidator,
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/// Requester stream exhausted.
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#[error("Erasure chunk requester stream exhausted")]
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RequesterExhausted,
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/// Sending response failed.
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#[error("Sending a request's response failed.")]
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SendResponse,
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}
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pub type Result<T> = std::result::Result<T, Error>;
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impl From<SubsystemError> for Error {
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fn from(err: SubsystemError) -> Self {
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Self::IncomingMessageChannel(err)
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}
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}
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/// Receive a response from a runtime request and convert errors.
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pub(crate) async fn recv_runtime<V>(
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r: std::result::Result<
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oneshot::Receiver<std::result::Result<V, RuntimeApiError>>,
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UtilError,
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>,
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) -> Result<V> {
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r.map_err(Error::UtilRequest)?
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.await
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.map_err(Error::RuntimeRequestCanceled)?
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.map_err(Error::RuntimeRequest)
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}
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