mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-07-03 07:37:23 +00:00
Stanislav Tkach
67 lines
2.2 KiB
Rust
67 lines
2.2 KiB
Rust
// Copyright 2017 Parity Technologies (UK) Ltd.
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// This file is part of Polkadot.
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// Polkadot 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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// Polkadot 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 Polkadot. If not, see <http://www.gnu.org/licenses/>.
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//! Polkadot CLI
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#![warn(missing_docs)]
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use cli::{PolkadotService, VersionInfo, TaskExecutor};
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use futures::sync::oneshot;
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use futures::{future, Future};
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use std::cell::RefCell;
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// the regular polkadot worker simply does nothing until ctrl-c
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struct Worker;
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impl cli::IntoExit for Worker {
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type Exit = future::MapErr<oneshot::Receiver<()>, fn(oneshot::Canceled) -> ()>;
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fn into_exit(self) -> Self::Exit {
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// can't use signal directly here because CtrlC takes only `Fn`.
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let (exit_send, exit) = oneshot::channel();
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let exit_send_cell = RefCell::new(Some(exit_send));
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ctrlc::set_handler(move || {
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if let Some(exit_send) = exit_send_cell.try_borrow_mut().expect("signal handler not reentrant; qed").take() {
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exit_send.send(()).expect("Error sending exit notification");
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}
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}).expect("Error setting Ctrl-C handler");
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exit.map_err(drop)
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}
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}
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impl cli::Worker for Worker {
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type Work = <Self as cli::IntoExit>::Exit;
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fn work<S: PolkadotService>(self, _service: &S, _: TaskExecutor) -> Self::Work {
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use cli::IntoExit;
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self.into_exit()
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}
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}
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fn main() -> Result<(), cli::error::Error> {
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let version = VersionInfo {
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name: "Parity Polkadot",
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commit: env!("VERGEN_SHA_SHORT"),
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version: env!("CARGO_PKG_VERSION"),
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executable_name: "polkadot",
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author: "Parity Team <admin@parity.io>",
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description: "Polkadot Relay-chain Client Node",
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support_url: "https://github.com/paritytech/polkadot/issues/new",
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};
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cli::run(::std::env::args(), Worker, version)
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}
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