Make writes consistent across socket and file synchronous/asynchronus writes in terms of truncation…

runtime/bin/common.cc

Index: runtime/bin/common.cc
===================================================================
--- runtime/bin/common.cc	(revision 24619)
+++ runtime/bin/common.cc	(working copy)
@@ -1,62 +0,0 @@
-// Copyright (c) 2012, 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/builtin.h"
-#include "bin/isolate_data.h"
-#include "include/dart_api.h"
-
-namespace dart {
-namespace bin {
-
-void FUNCTION_NAME(Common_IsBuiltinList)(Dart_NativeArguments args) {
-  Dart_EnterScope();
-  Dart_Handle list = Dart_GetNativeArgument(args, 0);
-  Dart_Handle list_class = Dart_InstanceGetClass(list);
-  ASSERT(!Dart_IsError(list_class));
-
-  // Fetch the cached builtin array types for this isolate.
-  IsolateData* isolate_data =
-      reinterpret_cast<IsolateData*>(Dart_CurrentIsolateData());
-
-  // If we have not cached the class pointers in the isolate data,
-  // look them up and cache them now.
-  if (isolate_data->object_array_class == NULL) {
-    Dart_Handle core_lib =
-        Dart_LookupLibrary(Dart_NewStringFromCString("dart:core"));
-    ASSERT(!Dart_IsError(core_lib));
-
-    Dart_Handle cls =
-        Dart_GetClass(core_lib, Dart_NewStringFromCString("_ObjectArray"));
-    ASSERT(!Dart_IsError(cls));
-    isolate_data->object_array_class = Dart_NewPersistentHandle(cls);
-    ASSERT(isolate_data->object_array_class != NULL);
-
-    cls = Dart_GetClass(core_lib, Dart_NewStringFromCString("_ImmutableArray"));
-    ASSERT(!Dart_IsError(cls));
-    isolate_data->immutable_array_class = Dart_NewPersistentHandle(cls);
-    ASSERT(isolate_data->immutable_array_class != NULL);
-
-    cls = Dart_GetClass(
-        core_lib, Dart_NewStringFromCString("_GrowableObjectArray"));
-    ASSERT(!Dart_IsError(cls));
-    isolate_data->growable_object_array_class = Dart_NewPersistentHandle(cls);
-    ASSERT(isolate_data->growable_object_array_class != NULL);
-  }
-
-  Dart_Handle object_array_class =
-      Dart_HandleFromPersistent(isolate_data->object_array_class);
-  Dart_Handle growable_object_array_class =
-      Dart_HandleFromPersistent(isolate_data->growable_object_array_class);
-  Dart_Handle immutable_array_class =
-      Dart_HandleFromPersistent(isolate_data->immutable_array_class);
-  bool builtin_array =
-      (Dart_IdentityEquals(list_class, growable_object_array_class) ||
-       Dart_IdentityEquals(list_class, object_array_class) ||
-       Dart_IdentityEquals(list_class, immutable_array_class));
-  Dart_SetReturnValue(args, Dart_NewBoolean(builtin_array));
-  Dart_ExitScope();
-}
-
-}  // namespace bin
-}  // namespace dart