74 lines
2.1 KiB
Rust
74 lines
2.1 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity 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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// Parity 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 Parity. If not, see <http://www.gnu.org/licenses/>.
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//! Minimal IO service for light client.
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//! Just handles block import messages and passes them to the client.
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use std::sync::Arc;
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use ethcore::service::ClientIoMessage;
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use ethcore::spec::Spec;
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use io::{IoContext, IoError, IoHandler, IoService};
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use super::{Client, Config as ClientConfig};
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/// Light client service.
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pub struct Service {
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client: Arc<Client>,
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_io_service: IoService<ClientIoMessage>,
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}
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impl Service {
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/// Start the service: initialize I/O workers and client itself.
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pub fn start(config: ClientConfig, spec: &Spec) -> Result<Self, IoError> {
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let io_service = try!(IoService::<ClientIoMessage>::start());
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let client = Arc::new(Client::new(config, spec, io_service.channel()));
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try!(io_service.register_handler(Arc::new(ImportBlocks(client.clone()))));
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Ok(Service {
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client: client,
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_io_service: io_service,
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})
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}
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/// Get a handle to the client.
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pub fn client(&self) -> &Arc<Client> {
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&self.client
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}
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}
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struct ImportBlocks(Arc<Client>);
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impl IoHandler<ClientIoMessage> for ImportBlocks {
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fn message(&self, _io: &IoContext<ClientIoMessage>, message: &ClientIoMessage) {
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if let ClientIoMessage::BlockVerified = *message {
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self.0.import_verified();
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::Service;
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use ethcore::spec::Spec;
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#[test]
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fn it_works() {
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let spec = Spec::new_test();
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Service::start(Default::default(), &spec).unwrap();
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}
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}
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