/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef mozilla_mscom_COMApartmentRegion_h #define mozilla_mscom_COMApartmentRegion_h #include "mozilla/Assertions.h" #include "mozilla/Attributes.h" #include <objbase.h> namespace mozilla { namespace mscom { template<COINIT T> class MOZ_NON_TEMPORARY_CLASS COMApartmentRegion { public: COMApartmentRegion() : mInitResult(::CoInitializeEx(nullptr, T)) { // If this fires then we're probably mixing apartments on the same thread MOZ_ASSERT(IsValid()); } ~COMApartmentRegion() { if (IsValid()) { ::CoUninitialize(); } } bool IsValidOutermost() const { return mInitResult == S_OK; } bool IsValid() const { return SUCCEEDED(mInitResult); } private: COMApartmentRegion(const COMApartmentRegion&) = delete; COMApartmentRegion& operator=(const COMApartmentRegion&) = delete; COMApartmentRegion(COMApartmentRegion&&) = delete; COMApartmentRegion& operator=(COMApartmentRegion&&) = delete; HRESULT mInitResult; }; typedef COMApartmentRegion<COINIT_APARTMENTTHREADED> STARegion; typedef COMApartmentRegion<COINIT_MULTITHREADED> MTARegion; } // namespace mscom } // namespace mozilla #endif // mozilla_mscom_COMApartmentRegion_h