92 lines
2.7 KiB
Rust
92 lines
2.7 KiB
Rust
// Copyright (C) Parity Technologies (UK) Ltd.
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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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//! The `Error` and `Result` types used by the subsystem.
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use crate::LOG_TARGET;
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use fatality::{fatality, Nested};
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use futures::channel::oneshot;
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use pezkuwi_node_network_protocol::request_response::incoming;
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use pezkuwi_node_subsystem::{RecoveryError, SubsystemError};
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use pezkuwi_primitives::Hash;
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/// Error type used by the Availability Recovery subsystem.
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#[fatality(splitable)]
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pub enum Error {
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#[fatal]
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#[error("Spawning subsystem task failed: {0}")]
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SpawnTask(#[source] SubsystemError),
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/// Receiving subsystem message from overseer failed.
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#[fatal]
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#[error("Receiving message from overseer failed: {0}")]
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SubsystemReceive(#[source] SubsystemError),
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#[fatal]
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#[error("failed to query full data from store")]
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CanceledQueryFullData(#[source] oneshot::Canceled),
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#[error("`SessionInfo` is `None` at {0}")]
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SessionInfoUnavailable(Hash),
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#[error("failed to query node features from runtime")]
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RequestNodeFeatures(#[source] pezkuwi_node_subsystem_util::runtime::Error),
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#[error("failed to send response")]
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CanceledResponseSender,
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#[error(transparent)]
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Runtime(#[from] pezkuwi_node_subsystem::errors::RuntimeApiError),
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#[error(transparent)]
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Erasure(#[from] pezkuwi_erasure_coding::Error),
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#[fatal]
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#[error(transparent)]
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Oneshot(#[from] oneshot::Canceled),
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#[fatal(forward)]
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#[error("Error during recovery: {0}")]
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Recovery(#[from] RecoveryError),
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#[fatal(forward)]
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#[error("Retrieving next incoming request failed: {0}")]
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IncomingRequest(#[from] incoming::Error),
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}
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pub type Result<T> = std::result::Result<T, Error>;
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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, unless the error is fatal for the entire
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/// subsystem.
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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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Ok(()) => Ok(()),
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Err(jfyi) => {
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jfyi.log();
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Ok(())
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},
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}
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}
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impl JfyiError {
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/// Log a `JfyiError`.
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pub fn log(self) {
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gum::warn!(target: LOG_TARGET, "{}", self);
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}
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}
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