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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qbluetoothutils_winrt_p.h"
#include <QtBluetooth/private/qtbluetoothglobal_p.h>
#include <QtCore/private/qfunctions_winrt_p.h>
#include <QtCore/QLoggingCategory>
#include <robuffer.h>
#include <wrl.h>
#include <winrt/windows.foundation.metadata.h>
#include <windows.storage.streams.h>
using namespace Microsoft::WRL;
using namespace Microsoft::WRL::Wrappers;
using namespace winrt::Windows::Foundation::Metadata;
using namespace ABI::Windows::Storage::Streams;
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(QT_BT_WINDOWS)
QByteArray byteArrayFromBuffer(const ComPtr<NativeBuffer> &buffer, bool isWCharString)
{
if (!buffer) {
qErrnoWarning("nullptr passed to byteArrayFromBuffer");
return QByteArray();
}
ComPtr<Windows::Storage::Streams::IBufferByteAccess> byteAccess;
HRESULT hr = buffer.As(&byteAccess);
RETURN_IF_FAILED("Could not cast buffer", return QByteArray())
char *data;
hr = byteAccess->Buffer(reinterpret_cast<byte **>(&data));
RETURN_IF_FAILED("Could not obtain buffer data", return QByteArray())
UINT32 size;
hr = buffer->get_Length(&size);
RETURN_IF_FAILED("Could not obtain buffer size", return QByteArray())
if (isWCharString) {
QString valueString = QString::fromUtf16(reinterpret_cast<char16_t *>(data)).left(size / 2);
return valueString.toUtf8();
}
return QByteArray(data, qint32(size));
}
static QSet<void*> successfulInits;
static QThread *mainThread = nullptr;
void mainThreadCoInit(void* caller)
{
Q_ASSERT(caller);
if (QThread::currentThread() != QCoreApplication::instance()->thread()) {
qCWarning(QT_BT_WINDOWS) << "Main thread COM init tried from another thread";
return;
}
if (successfulInits.contains(caller)) {
qCWarning(QT_BT_WINDOWS) << "Multiple COM inits by same object";
return;
}
Q_ASSERT_X(!mainThread || mainThread == QThread::currentThread(),
__FUNCTION__, "QCoreApplication's thread has changed!");
// This executes in main thread which may run Gui => use apartment threaded
if (!SUCCEEDED(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED))) {
qCWarning(QT_BT_WINDOWS) << "Unexpected COM initialization result";
return;
}
successfulInits.insert(caller);
if (!mainThread)
mainThread = QThread::currentThread();
}
void mainThreadCoUninit(void* caller)
{
Q_ASSERT(caller);
if (!successfulInits.contains(caller)) {
qCWarning(QT_BT_WINDOWS) << "COM uninitialization without initialization";
return;
}
if (QThread::currentThread() != mainThread) {
qCWarning(QT_BT_WINDOWS) << "Main thread COM uninit tried from another thread";
return;
}
CoUninitialize();
successfulInits.remove(caller);
}
QT_END_NAMESPACE
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