1 files changed, 112 insertions, 0 deletions
diff --git a/src/csharp/Grpc.Core/Internal/ServerSafeHandle.cs b/src/csharp/Grpc.Core/Internal/ServerSafeHandle.cs
new file mode 100644
index 0000000000..de9bbaf7c1
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+++ b/src/csharp/Grpc.Core/Internal/ServerSafeHandle.cs
@@ -0,0 +1,112 @@
+#region Copyright notice and license
+
+// 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.Collections.Concurrent;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace Grpc.Core.Internal
+{
+    // TODO: we need to make sure that the delegates are not collected before invoked.
+    internal delegate void ServerShutdownCallbackDelegate(IntPtr eventPtr);
+
+    /// <summary>
+    /// grpc_server from grpc/grpc.h
+    /// </summary>
+    internal sealed class ServerSafeHandle : SafeHandleZeroIsInvalid
+    {
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern GRPCCallError grpcsharp_server_request_call(ServerSafeHandle server, CompletionQueueSafeHandle cq, [MarshalAs(UnmanagedType.FunctionPtr)] CompletionCallbackDelegate callback);
+
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern ServerSafeHandle grpcsharp_server_create(CompletionQueueSafeHandle cq, IntPtr args);
+
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern Int32 grpcsharp_server_add_http2_port(ServerSafeHandle server, string addr);
+
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern void grpcsharp_server_start(ServerSafeHandle server);
+
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern void grpcsharp_server_shutdown(ServerSafeHandle server);
+
+        // TODO: get rid of the old callback style
+        [DllImport("grpc_csharp_ext.dll", EntryPoint = "grpcsharp_server_shutdown_and_notify")]
+        static extern void grpcsharp_server_shutdown_and_notify_CALLBACK(ServerSafeHandle server, [MarshalAs(UnmanagedType.FunctionPtr)] ServerShutdownCallbackDelegate callback);
+
+        [DllImport("grpc_csharp_ext.dll")]
+        static extern void grpcsharp_server_destroy(IntPtr server);
+
+        private ServerSafeHandle()
+        {
+        }
+
+        public static ServerSafeHandle NewServer(CompletionQueueSafeHandle cq, IntPtr args)
+        {
+            // TODO: also grpc_secure_server_create...
+            return grpcsharp_server_create(cq, args);
+        }
+
+        public int AddPort(string addr)
+        {
+            return grpcsharp_server_add_http2_port(this, addr);
+        }
+
+        public void Start()
+        {
+            grpcsharp_server_start(this);
+        }
+
+        public void Shutdown()
+        {
+            grpcsharp_server_shutdown(this);
+        }
+
+        public void ShutdownAndNotify(ServerShutdownCallbackDelegate callback)
+        {
+            grpcsharp_server_shutdown_and_notify_CALLBACK(this, callback);
+        }
+
+        public GRPCCallError RequestCall(CompletionQueueSafeHandle cq, CompletionCallbackDelegate callback)
+        {
+            return grpcsharp_server_request_call(this, cq, callback);
+        }
+
+        protected override bool ReleaseHandle()
+        {
+            grpcsharp_server_destroy(handle);
+            return true;
+        }
+    }
+}