pezkuwichain
b6d35f6faf
Updated 4763 files with dual copyright: - Parity Technologies (UK) Ltd. - Dijital Kurdistan Tech Institute
98 lines
3.1 KiB
Rust
98 lines
3.1 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd. and Dijital Kurdistan Tech Institute
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// This file is part of Pezkuwi.
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// Pezkuwi 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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// Pezkuwi 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 Pezkuwi. 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 fatality::Nested;
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use gum::CandidateHash;
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use pezkuwi_node_network_protocol::{request_response::incoming, PeerId};
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use pezkuwi_node_subsystem_util::runtime;
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use pezkuwi_primitives::AuthorityDiscoveryId;
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use crate::LOG_TARGET;
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#[allow(missing_docs)]
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#[fatality::fatality(splitable)]
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pub enum Error {
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#[fatal(forward)]
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#[error("Error while accessing runtime information")]
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Runtime(#[from] runtime::Error),
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#[fatal(forward)]
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#[error("Retrieving next incoming request failed.")]
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IncomingRequest(#[from] incoming::Error),
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#[error("Sending back response to peers {0:#?} failed.")]
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SendResponses(Vec<PeerId>),
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#[error("Changing peer's ({0}) reputation failed.")]
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SetPeerReputation(PeerId),
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#[error("Dispute request with invalid signatures, from peer {0}.")]
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InvalidSignature(PeerId),
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#[error("Received votes from peer {0} have been completely redundant.")]
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RedundantMessage(PeerId),
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#[error("Import of dispute got canceled for candidate {0} - import failed for some reason.")]
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ImportCanceled(CandidateHash),
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#[error("Peer {0} attempted to participate in dispute and is not a validator.")]
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NotAValidator(PeerId),
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#[error("Force flush for batch that could not be found attempted, candidate hash: {0}")]
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ForceFlushBatchDoesNotExist(CandidateHash),
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// Should never happen in practice:
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#[error("We needed to drop messages, because we reached limit on concurrent batches.")]
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MaxBatchLimitReached,
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#[error("Authority {0} sent messages at a too high rate.")]
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AuthorityFlooding(AuthorityDiscoveryId),
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}
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pub type Result<T> = std::result::Result<T, Error>;
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pub type JfyiResult<T> = std::result::Result<T, JfyiError>;
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/// Utility for eating top level errors and log them.
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///
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/// We basically always want to try and continue on error. This utility function is meant to
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/// consume top-level errors by simply logging them.
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pub fn log_error(result: Result<()>) -> std::result::Result<(), FatalError> {
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match result.into_nested()? {
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Err(error @ JfyiError::ImportCanceled(_)) => {
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gum::debug!(target: LOG_TARGET, error = ?error);
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Ok(())
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},
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Err(JfyiError::NotAValidator(peer)) => {
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gum::debug!(
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target: LOG_TARGET,
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?peer,
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"Dropping message from peer (unknown authority id)"
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);
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Ok(())
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},
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Err(error) => {
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gum::warn!(target: LOG_TARGET, error = ?error);
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Ok(())
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},
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Ok(()) => Ok(()),
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}
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}
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