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// Copyright 2017 Parity Technologies (UK) Ltd.
// This file is part of Polkadot.
// Polkadot 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.
// Polkadot 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 Polkadot. If not, see <http://www.gnu.org/licenses/>.
//! Errors that can occur during the consensus process.
use primitives::block::{HeaderHash, Number};
error_chain! {
links {
PolkadotApi(::polkadot_api::Error, ::polkadot_api::ErrorKind);
Bft(::bft::Error, ::bft::ErrorKind);
}
errors {
InvalidDutyRosterLength(expected: usize, got: usize) {
description("Duty Roster had invalid length"),
display("Invalid duty roster length: expected {}, got {}", expected, got),
}
ProposalNotForPolkadot {
description("Proposal provided not a Polkadot block."),
display("Proposal provided not a Polkadot block."),
}
TimestampInFuture {
description("Proposal had timestamp too far in the future."),
display("Proposal had timestamp too far in the future."),
}
WrongParentHash(expected: HeaderHash, got: HeaderHash) {
description("Proposal had wrong parent hash."),
display("Proposal had wrong parent hash. Expected {:?}, got {:?}", expected, got),
}
WrongNumber(expected: Number, got: Number) {
description("Proposal had wrong number."),
display("Proposal had wrong number. Expected {:?}, got {:?}", expected, got),
}
ProposalTooLarge(size: usize) {
description("Proposal exceeded the maximum size."),
display(
"Proposal exceeded the maximum size of {} by {} bytes.",
::MAX_TRANSACTIONS_SIZE, ::MAX_TRANSACTIONS_SIZE.saturating_sub(*size)
),
}
Executor(e: ::futures::future::ExecuteErrorKind) {
description("Unable to dispatch agreement future"),
display("Unable to dispatch agreement future: {:?}", e),
}
}
}
impl From<::bft::InputStreamConcluded> for Error {
fn from(err: ::bft::InputStreamConcluded) -> Self {
::bft::Error::from(err).into()
}
}