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				|  |  | +// Copyright 2015, Google Inc.
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				|  |  | +// All rights reserved.
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				|  |  | +//
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				|  |  | +// Redistribution and use in source and binary forms, with or without
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				|  |  | +// modification, are permitted provided that the following conditions are
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				|  |  | +// met:
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				|  |  | +//
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				|  |  | +//     * Redistributions of source code must retain the above copyright
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				|  |  | +// notice, this list of conditions and the following disclaimer.
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				|  |  | +//     * Redistributions in binary form must reproduce the above
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				|  |  | +// copyright notice, this list of conditions and the following disclaimer
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				|  |  | +// in the documentation and/or other materials provided with the
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				|  |  | +// distribution.
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				|  |  | +//     * Neither the name of Google Inc. nor the names of its
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				|  |  | +// contributors may be used to endorse or promote products derived from
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				|  |  | +// this software without specific prior written permission.
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				|  |  | +//
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				|  |  | +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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				|  |  | +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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				|  |  | +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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				|  |  | +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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				|  |  | +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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				|  |  | +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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				|  |  | +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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				|  |  | +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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				|  |  | +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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				|  |  | +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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				|  |  | +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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				|  |  | +
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				|  |  | +// An integration test service that covers all the method signature permutations
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				|  |  | +// of unary/streaming requests/responses.
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				|  |  | +syntax = "proto3";
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				|  |  | +
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				|  |  | +import "google/protobuf/empty.proto";
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				|  |  | +import "messages.proto";
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				|  |  | +
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				|  |  | +package grpc.testing;
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				|  |  | +
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				|  |  | +option objc_class_prefix = "RMT";
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				|  |  | +
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				|  |  | +// A simple service to test the various types of RPCs and experiment with
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				|  |  | +// performance with various types of payload.
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				|  |  | +service TestService {
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				|  |  | +  // One empty request followed by one empty response.
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				|  |  | +  rpc EmptyCall(google.protobuf.Empty) returns (google.protobuf.Empty);
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				|  |  | +
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				|  |  | +  // One request followed by one response.
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				|  |  | +  rpc UnaryCall(SimpleRequest) returns (SimpleResponse);
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				|  |  | +
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				|  |  | +  // One request followed by a sequence of responses (streamed download).
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				|  |  | +  // The server returns the payload with client desired type and sizes.
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				|  |  | +  rpc StreamingOutputCall(StreamingOutputCallRequest)
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				|  |  | +      returns (stream StreamingOutputCallResponse);
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				|  |  | +
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				|  |  | +  // A sequence of requests followed by one response (streamed upload).
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				|  |  | +  // The server returns the aggregated size of client payload as the result.
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				|  |  | +  rpc StreamingInputCall(stream StreamingInputCallRequest)
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				|  |  | +      returns (StreamingInputCallResponse);
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				|  |  | +
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				|  |  | +  // A sequence of requests with each request served by the server immediately.
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				|  |  | +  // As one request could lead to multiple responses, this interface
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				|  |  | +  // demonstrates the idea of full duplexing.
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				|  |  | +  rpc FullDuplexCall(stream StreamingOutputCallRequest)
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				|  |  | +      returns (stream StreamingOutputCallResponse);
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				|  |  | +
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				|  |  | +  // A sequence of requests followed by a sequence of responses.
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				|  |  | +  // The server buffers all the client requests and then serves them in order. A
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				|  |  | +  // stream of responses are returned to the client when the server starts with
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				|  |  | +  // first request.
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				|  |  | +  rpc HalfDuplexCall(stream StreamingOutputCallRequest)
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				|  |  | +      returns (stream StreamingOutputCallResponse);
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				|  |  | +}
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