mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-27 05:47:58 +00:00
Bastian Köcher
65 lines
1.9 KiB
Rust
65 lines
1.9 KiB
Rust
// Copyright 2018 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate 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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// Substrate 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 Substrate. If not, see <http://www.gnu.org/licenses/>.
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//! Substrate CLI
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#![warn(missing_docs)]
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extern crate node_cli as cli;
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extern crate ctrlc;
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extern crate futures;
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#[macro_use]
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extern crate error_chain;
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use cli::VersionInfo;
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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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// handles ctrl-c
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struct Exit;
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impl cli::IntoExit for Exit {
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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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quick_main!(run);
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fn run() -> cli::error::Result<()> {
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let version = VersionInfo {
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commit: env!("VERGEN_SHA_SHORT"),
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version: env!("CARGO_PKG_VERSION"),
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executable_name: "substrate",
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author: "Parity Team <admin@parity.io>",
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description: "Generic substrate node",
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};
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cli::run(::std::env::args(), Exit, version)
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}
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