ui/base/win/scoped_ole_initializer.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/base/win/scoped_ole_initializer.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace ui {
  10
  11 ScopedOleInitializer::ScopedOleInitializer()
  12     :
  13 #ifndef NDEBUG
  14       // Using the windows API directly to avoid dependency on platform_thread.
  15       thread_id_(GetCurrentThreadId()),
  16 #endif
  17       hr_(OleInitialize(NULL)) {
  18 #ifndef NDEBUG
  19   if (hr_ == S_FALSE) {
  20     LOG(ERROR) << "Multiple OleInitialize() calls for thread " << thread_id_;
  21   } else {
  22     DCHECK_NE(OLE_E_WRONGCOMPOBJ, hr_) << "Incompatible DLLs on machine";
  23     DCHECK_NE(RPC_E_CHANGED_MODE, hr_) << "Invalid COM thread model change";
  24   }
  25 #endif
  26 }
  27
  28 ScopedOleInitializer::~ScopedOleInitializer() {
  29 #ifndef NDEBUG
  30   DCHECK_EQ(thread_id_, GetCurrentThreadId());
  31 #endif
  32   if (SUCCEEDED(hr_))
  33     OleUninitialize();
  34 }
  35
  36 }  // namespace ui