61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
// Copyright 2017 The Chromium Authors
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "base/win/scoped_com_initializer.h"
|
|
|
|
#include <wrl/implements.h>
|
|
|
|
#include <ostream>
|
|
|
|
#include "base/check_op.h"
|
|
|
|
namespace base {
|
|
namespace win {
|
|
|
|
ScopedCOMInitializer::ScopedCOMInitializer(Uninitialization uninitialization) {
|
|
Initialize(COINIT_APARTMENTTHREADED, uninitialization);
|
|
}
|
|
|
|
ScopedCOMInitializer::ScopedCOMInitializer(SelectMTA mta,
|
|
Uninitialization uninitialization) {
|
|
Initialize(COINIT_MULTITHREADED, uninitialization);
|
|
}
|
|
|
|
ScopedCOMInitializer::~ScopedCOMInitializer() {
|
|
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
|
|
if (Succeeded()) {
|
|
if (com_balancer_) {
|
|
com_balancer_->Disable();
|
|
com_balancer_.Reset();
|
|
}
|
|
CoUninitialize();
|
|
}
|
|
}
|
|
|
|
bool ScopedCOMInitializer::Succeeded() const {
|
|
return SUCCEEDED(hr_);
|
|
}
|
|
|
|
DWORD ScopedCOMInitializer::GetCOMBalancerReferenceCountForTesting() const {
|
|
if (com_balancer_)
|
|
return com_balancer_->GetReferenceCountForTesting();
|
|
return 0;
|
|
}
|
|
|
|
void ScopedCOMInitializer::Initialize(COINIT init,
|
|
Uninitialization uninitialization) {
|
|
DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
|
|
// COINIT_DISABLE_OLE1DDE is always added based on:
|
|
// https://docs.microsoft.com/en-us/windows/desktop/learnwin32/initializing-the-com-library
|
|
if (uninitialization == Uninitialization::kBlockPremature) {
|
|
com_balancer_ = Microsoft::WRL::Details::Make<internal::ComInitBalancer>(
|
|
init | COINIT_DISABLE_OLE1DDE);
|
|
}
|
|
hr_ = ::CoInitializeEx(nullptr, init | COINIT_DISABLE_OLE1DDE);
|
|
DCHECK_NE(RPC_E_CHANGED_MODE, hr_) << "Invalid COM thread model change";
|
|
}
|
|
|
|
} // namespace win
|
|
} // namespace base
|