Add setNoDelay method on Socket/RawSocket.

runtime/bin/socket.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/io_buffer.h"
 #include "bin/socket.h"
 #include "bin/dartutils.h"
 #include "bin/thread.h"
 #include "bin/utils.h"
 
@@ skipping 427 matching lines @@
   Dart_Port service_port = Socket::GetServicePort();
   if (service_port != ILLEGAL_PORT) {
     // Return a send port for the service port.
     Dart_Handle send_port = Dart_NewSendPort(service_port);
     Dart_SetReturnValue(args, send_port);
   }
   Dart_ExitScope();
 }
 
 
+void FUNCTION_NAME(Socket_SetOption)(Dart_NativeArguments args) {
+  Dart_EnterScope();
+  Dart_Handle socket_obj = Dart_GetNativeArgument(args, 0);
+  intptr_t socket = 0;
+  bool result = false;
+  Dart_Handle err = Socket::GetSocketIdNativeField(socket_obj, &socket);
+  if (Dart_IsError(err)) Dart_PropagateError(err);
+  Dart_Handle option_obj = Dart_GetNativeArgument(args, 1);
+  int64_t option;
+  err = Dart_IntegerToInt64(option_obj, &option);
+  if (Dart_IsError(err)) Dart_PropagateError(err);
+  Dart_Handle enabled_obj = Dart_GetNativeArgument(args, 2);
+  bool enabled;
+  err = Dart_BooleanValue(enabled_obj, &enabled);
+  if (Dart_IsError(err)) Dart_PropagateError(err);
+  switch (option) {
+    case 0:  // TCP_NODELAY.
+      result = Socket::SetNoDelay(socket, enabled);
+      break;
+    default:
+      break;
+  }
+  Dart_SetReturnValue(args, Dart_NewBoolean(result));
+  Dart_ExitScope();
+}
+
+
 Dart_Handle Socket::SetSocketIdNativeField(Dart_Handle socket, intptr_t id) {
   return Dart_SetNativeInstanceField(socket, kSocketIdNativeField, id);
 }
 
 
 Dart_Handle Socket::GetSocketIdNativeField(Dart_Handle socket, intptr_t* id) {
   return Dart_GetNativeInstanceField(socket, kSocketIdNativeField, id);
 }