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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
import Foundation
public extension Operation {
/// Wait for the operation to finish, or a timeout.
///
/// The operation is cooperatively cancelled on timeout, that is to say, it checks its {isCancelled}.
func joinOrTimeout(timeout: TimeInterval) -> Bool {
if isFinished {
return !isCancelled
}
DispatchQueue.global().async {
Thread.sleep(forTimeInterval: timeout)
if !self.isFinished {
self.cancel()
}
}
waitUntilFinished()
return !isCancelled
}
}