Adds the common protos along with a README.md

protos/README.md

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+# Example protos
+
+## Contents
+
+- helloworld.proto
+  A very simple example used in the overview.
+
+- stock.proto
+  A detailed example that's described in detail in the tutorial.
+
+- math.proto
+  Another detailed example for further reference.

protos/helloworld.proto

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+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// 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.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+option java_package = "ex.grpc";
+
+package helloworld;
+
+// The request message containing the user's name.
+message HelloRequest {
+  optional string name = 1;
+}
+
+// The response message containing the greetings
+message HelloReply {
+  optional string message = 1;
+}
+
+// The greeting service definition.
+service Greetings {
+  // Sends a greeting
+  rpc hello (HelloRequest) returns (HelloReply) {
+  }
+}

protos/math.proto

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+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// 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.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+package math;
+
+message DivArgs {
+  optional int64 dividend = 1;
+  optional int64 divisor = 2;
+}
+
+message DivReply {
+  optional int64 quotient = 1;
+  optional int64 remainder = 2;
+}
+
+message FibArgs {
+  optional int64 limit = 1;
+}
+
+message Num {
+  optional int64 num = 1;
+}
+
+message FibReply {
+  optional int64 count = 1;
+}
+
+service Math {
+  // Div divides args.dividend by args.divisor and returns the quotient and
+  // remainder.
+  rpc Div (DivArgs) returns (DivReply) {
+  }
+
+  // DivMany accepts an arbitrary number of division args from the client stream
+  // and sends back the results in the reply stream.  The stream continues until
+  // the client closes its end; the server does the same after sending all the
+  // replies.  The stream ends immediately if either end aborts.
+  rpc DivMany (stream DivArgs) returns (stream DivReply) {
+  }
+
+  // Fib generates numbers in the Fibonacci sequence.  If args.limit > 0, Fib
+  // generates up to limit numbers; otherwise it continues until the call is
+  // canceled.
+  rpc Fib (FibArgs) returns (stream Num) {
+  }
+
+  // Sum sums a stream of numbers, returning the final result once the stream
+  // is closed.
+  rpc Sum (stream Num) returns (Num) {
+  }
+}

protos/stock.proto

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+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// 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.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+package examples;
+
+// Protocol type definitions
+message StockRequest {
+  optional string symbol = 1;
+  optional int32 num_trades_to_watch = 2;
+};
+
+message StockReply {
+  optional float price = 1;
+  optional string symbol = 2;
+};
+
+// Interface exported by the server
+service Stock {
+  // A simple blocking RPC.
+  //
+  // Obtains the last traded price for the given Stock.
+  rpc GetLastTradePrice(StockRequest) returns (StockReply) {
+  };
+
+  // A Unidirectional server-to-client streaming RPC.
+  //
+  // Streams future prices for a given symbol.
+  rpc WatchFutureTrades(StockRequest) returns (stream StockReply) {
+  };
+
+  // A Unidirectional client-to-server streaming RPC.
+  //
+  // Gets the highest traded price for a series of symbols
+  rpc GetHighestTradePrice(stream StockRequest) returns (StockReply) {
+  };
+
+  // Bidirectional streaming RPC.
+  //
+  // Gets the most recent traded price of series of trades.
+  rpc GetLastTradePriceMultiple(stream StockRequest) returns
+    (stream StockReply) {
+  };
+};