openethereum/util/stop-guard/src/lib.rs
Niklas Adolfsson 98b7c07171 Update license header and scripts (#8666)
* Update `add_license` script

* run script

* add `remove duplicate lines script` and run it

* Revert changes `English spaces`

* strip whitespaces

* Revert `GPL` in files with `apache/mit license`

* don't append `gpl license` in files with other lic

* Don't append `gpl header` in files with other lic.

* re-ran script

* include c and cpp files too

* remove duplicate header

* rebase nit
2018-06-04 10:19:50 +02:00

46 lines
1.2 KiB
Rust

// Copyright 2015-2018 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/>.
//! Stop guard mod
use std::sync::Arc;
use std::sync::atomic::*;
/// Stop guard that will set a stop flag on drop
pub struct StopGuard {
flag: Arc<AtomicBool>,
}
impl StopGuard {
/// Create a stop guard
pub fn new() -> StopGuard {
StopGuard {
flag: Arc::new(AtomicBool::new(false))
}
}
/// Share stop guard between the threads
pub fn share(&self) -> Arc<AtomicBool> {
self.flag.clone()
}
}
impl Drop for StopGuard {
fn drop(&mut self) {
self.flag.store(true, Ordering::Relaxed)
}
}