40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum 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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// OpenEthereum 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 OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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//! Stop guard mod
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use std::sync::{atomic::*, Arc};
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/// Stop guard that will set a stop flag on drop
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pub struct StopGuard {
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flag: Arc<AtomicBool>,
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}
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impl StopGuard {
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/// Create a stop guard
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pub fn new() -> StopGuard {
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StopGuard {
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flag: Arc::new(AtomicBool::new(false)),
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}
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}
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}
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impl Drop for StopGuard {
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fn drop(&mut self) {
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self.flag.store(true, Ordering::SeqCst)
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}
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}
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