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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
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// in the documentation and/or other materials provided with the
// distribution.
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// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
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package org.apache.comet.shaded.protobuf;

/**
 * Abstract interface for a blocking RPC channel. {@code BlockingRpcChannel} is the blocking
 * equivalent to {@link RpcChannel}.
 *
 * @author [email protected] Kenton Varda
 * @author [email protected] Chris Povirk
 */
public interface BlockingRpcChannel {
  /**
   * Call the given method of the remote service and blocks until it returns. {@code
   * callBlockingMethod()} is the blocking equivalent to {@link RpcChannel#callMethod}.
   */
  Message callBlockingMethod(
      Descriptors.MethodDescriptor method,
      RpcController controller,
      Message request,
      Message responsePrototype)
      throws ServiceException;
}