Moved StopGaurd to it's own crate (#7635)

devtools/src/lib.rs

@@ -21,9 +21,7 @@ extern crate rand;
 
 mod random_path;
 mod test_socket;
-mod stop_guard;
 pub mod http_client;
 
 pub use random_path::*;
 pub use test_socket::*;
-pub use stop_guard::*;

devtools/src/stop_guard.rs

@@ -1,45 +0,0 @@
-// Copyright 2015-2017 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)
-	}
-}