/*

 * Copyright 2021, gRPC Authors All rights reserved.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

import NIOCore

extension EventLoopFuture where Value == Void {

  internal func recoveringFromUncleanShutdown() -> EventLoopFuture<Void> {

    // We can ignore unclean shutdown since gRPC is self-terminated and therefore not prone to

    // truncation attacks.

    return self.flatMapErrorThrowing { error in

      if error.isNIOSSLUncleanShutdown {

        return ()

      } else {

        throw error

      }

    }

  }

}