openethereum/stratum/src/traits.rs

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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity 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.
// Parity 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 Parity. If not, see <http://www.gnu.org/licenses/>.
use std;
use std::error::Error as StdError;
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use bigint::hash::H256;
use jsonrpc_tcp_server::PushMessageError;
#[derive(Debug, Clone)]
pub enum Error {
NoWork,
NoWorkers,
Io(String),
Tcp(String),
Dispatch(String),
}
impl From<std::io::Error> for Error {
fn from(err: std::io::Error) -> Self {
Error::Io(err.description().to_owned())
}
}
impl From<PushMessageError> for Error {
fn from(err: PushMessageError) -> Self {
Error::Tcp(format!("Push message error: {:?}", err))
}
}
/// Interface that can provide pow/blockchain-specific responses for the clients
pub trait JobDispatcher: Send + Sync {
// json for initial client handshake
fn initial(&self) -> Option<String> { None }
// json for difficulty dispatch
fn difficulty(&self) -> Option<String> { None }
// json for job update given worker_id (payload manager should split job!)
fn job(&self) -> Option<String> { None }
// miner job result
fn submit(&self, payload: Vec<String>) -> Result<(), Error>;
}
/// Interface that can handle requests to push job for workers
pub trait PushWorkHandler: Send + Sync {
/// push the same work package for all workers (`payload`: json of pow-specific set of work specification)
fn push_work_all(&self, payload: String) -> Result<(), Error>;
/// push the work packages worker-wise (`payload`: json of pow-specific set of work specification)
fn push_work(&self, payloads: Vec<String>) -> Result<(), Error>;
}
pub struct ServiceConfiguration {
pub io_path: String,
pub listen_addr: String,
pub port: u16,
pub secret: Option<H256>,
}