Initial checkin of gRPC to third_party/

third_party/grpc/src/csharp/Grpc.Core/Internal/ClientRequestStream.cs

 #region Copyright notice and license
-// Protocol Buffers - Google's data interchange format
-// Copyright 2008 Google Inc.  All rights reserved.
-// https://developers.google.com/protocol-buffers/
-//
+// 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.
 #endregion
+using System;
+using System.Threading.Tasks;
+using Grpc.Core.Internal;
 
-using System;
-using System.IO;
-
-namespace Google.Protobuf.ProtoDump
+namespace Grpc.Core.Internal
 {
     /// <summary>
-    /// Small utility to load a binary message and dump it in JSON format.
+    /// Writes requests asynchronously to an underlying AsyncCall object.
     /// </summary>
-    internal class Program
+    internal class ClientRequestStream<TRequest, TResponse> : IClientStreamWriter<TRequest>
     {
-        private static int Main(string[] args)
+        readonly AsyncCall<TRequest, TResponse> call;
+        WriteOptions writeOptions;
+
+        public ClientRequestStream(AsyncCall<TRequest, TResponse> call)
         {
-            if (args.Length != 2)
+            this.call = call;
+            this.writeOptions = call.Details.Options.WriteOptions;
+        }
+
+        public Task WriteAsync(TRequest message)
+        {
+            var taskSource = new AsyncCompletionTaskSource<object>();
+            call.StartSendMessage(message, GetWriteFlags(), taskSource.CompletionDelegate);
+            return taskSource.Task;
+        }
+
+        public Task CompleteAsync()
+        {
+            var taskSource = new AsyncCompletionTaskSource<object>();
+            call.StartSendCloseFromClient(taskSource.CompletionDelegate);
+            return taskSource.Task;
+        }
+
+        public WriteOptions WriteOptions
+        {
+            get
             {
-                Console.Error.WriteLine("Usage: Google.Protobuf.JsonDump <descriptor type name> <input data>");
-                Console.Error.WriteLine("The descriptor type name is the fully-qualified message name,");
-                Console.Error.WriteLine("including assembly e.g. ProjectNamespace.Message,Company.Project");
-                return 1;
+                return this.writeOptions;
             }
-            Type type = Type.GetType(args[0]);
-            if (type == null)
+
+            set
             {
-                Console.Error.WriteLine("Unable to load type {0}.", args[0]);
-                return 1;
+                writeOptions = value;
             }
-            if (!typeof(IMessage).IsAssignableFrom(type))
-            {
-                Console.Error.WriteLine("Type {0} doesn't implement IMessage.", args[0]);
-                return 1;
-            }
-            IMessage message = (IMessage) Activator.CreateInstance(type);
-            using (var input = File.OpenRead(args[1]))
-            {
-                message.MergeFrom(input);
-            }
-            Console.WriteLine(message);
-            return 0;
+        }
+
+        private WriteFlags GetWriteFlags()
+        {
+            var options = writeOptions;
+            return options != null ? options.Flags : default(WriteFlags);
         }
     }
-}
+}