Initial checkin of gRPC to third_party/

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

Index: third_party/grpc/src/csharp/Grpc.Core/Internal/ChannelArgsSafeHandle.cs
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf/Reflection/PackageDescriptor.cs b/third_party/grpc/src/csharp/Grpc.Core/Internal/ChannelArgsSafeHandle.cs
similarity index 59%
copy from third_party/protobuf/csharp/src/Google.Protobuf/Reflection/PackageDescriptor.cs
copy to third_party/grpc/src/csharp/Grpc.Core/Internal/ChannelArgsSafeHandle.cs
index e547d834986de8d80703504469e9c39b3d8ae93d..f6aa710b21433dca77b619ecf838dd8bf60bc3d8 100644
--- a/third_party/protobuf/csharp/src/Google.Protobuf/Reflection/PackageDescriptor.cs
+++ b/third_party/grpc/src/csharp/Grpc.Core/Internal/ChannelArgsSafeHandle.cs
@@ -1,7 +1,6 @@
 #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 2015-2016, 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
@@ -29,40 +28,47 @@
 // (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.Runtime.InteropServices;
+using System.Threading.Tasks;
 
-namespace Google.Protobuf.Reflection
+namespace Grpc.Core.Internal
 {
     /// <summary>
-    /// Represents a package in the symbol table.  We use PackageDescriptors
-    /// just as placeholders so that someone cannot define, say, a message type
-    /// that has the same name as an existing package.
+    /// grpc_channel_args from <c>grpc/grpc.h</c>
     /// </summary>
-    internal sealed class PackageDescriptor : IDescriptor
+    internal class ChannelArgsSafeHandle : SafeHandleZeroIsInvalid
     {
-        private readonly string name;
-        private readonly string fullName;
-        private readonly FileDescriptor file;
+        static readonly NativeMethods Native = NativeMethods.Get();
 
-        internal PackageDescriptor(string name, string fullName, FileDescriptor file)
+        private ChannelArgsSafeHandle()
         {
-            this.file = file;
-            this.fullName = fullName;
-            this.name = name;
         }
 
-        public string Name
+        public static ChannelArgsSafeHandle CreateNull()
         {
-            get { return name; }
+            return new ChannelArgsSafeHandle();
         }
 
-        public string FullName
+        public static ChannelArgsSafeHandle Create(int size)
         {
-            get { return fullName; }
+            return Native.grpcsharp_channel_args_create(new UIntPtr((uint)size));
         }
 
-        public FileDescriptor File
+        public void SetString(int index, string key, string value)
         {
-            get { return file; }
+            Native.grpcsharp_channel_args_set_string(this, new UIntPtr((uint)index), key, value);
+        }
+
+        public void SetInteger(int index, string key, int value)
+        {
+            Native.grpcsharp_channel_args_set_integer(this, new UIntPtr((uint)index), key, value);
+        }
+
+        protected override bool ReleaseHandle()
+        {
+            Native.grpcsharp_channel_args_destroy(handle);
+            return true;
         }
     }
-}
+}