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// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
//! Substrate network possible errors.
use crate::{config::TransportConfig, types::ProtocolName};
use libp2p::{Multiaddr, PeerId};
use std::fmt;
/// Result type alias for the network.
pub type Result<T> = std::result::Result<T, Error>;
/// Error type for the network.
#[derive(thiserror::Error)]
pub enum Error {
/// Io error
#[error(transparent)]
Io(#[from] std::io::Error),
/// Client error
#[error(transparent)]
Client(#[from] Box<sp_blockchain::Error>),
/// The same bootnode (based on address) is registered with two different peer ids.
#[error(
"The same bootnode (`{address}`) is registered with two different peer ids: `{first_id}` and `{second_id}`"
)]
DuplicateBootnode {
/// The address of the bootnode.
address: Multiaddr,
/// The first peer id that was found for the bootnode.
first_id: PeerId,
/// The second peer id that was found for the bootnode.
second_id: PeerId,
},
/// Prometheus metrics error.
#[error(transparent)]
Prometheus(#[from] prometheus_endpoint::PrometheusError),
/// The network addresses are invalid because they don't match the transport.
#[error(
"The following addresses are invalid because they don't match the transport: {addresses:?}"
)]
AddressesForAnotherTransport {
/// Transport used.
transport: TransportConfig,
/// The invalid addresses.
addresses: Vec<Multiaddr>,
},
/// The same request-response protocol has been registered multiple times.
#[error("Request-response protocol registered multiple times: {protocol}")]
DuplicateRequestResponseProtocol {
/// Name of the protocol registered multiple times.
protocol: ProtocolName,
},
}
// Make `Debug` use the `Display` implementation.
impl fmt::Debug for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(self, f)
}
}