qautoresetevent_win32.cpp

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// Copyright (C) 2024 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 "qautoresetevent_win32_p.h"
 
#include <QtCore/qt_windows.h>
#include <QtCore/qdebug.h>
 
QT_BEGIN_NAMESPACE
 
namespace QtPrivate {
 
QAutoResetEventWin32::QAutoResetEventWin32(QObject *parent)
    : QObject{
          parent,
      },
      m_handle{
          nullptr,
      }
{
    m_handle = ::CreateEventW(/*lpEventAttributes=*/0,
                              /*bManualReset=*/false,
                              /*bInitialState=*/false,
                              /*lpName=*/nullptr);
 
    if (!m_handle) {
        qCritical() << "CreateEventW failed:" << qt_error_string(GetLastError());
        return;
    }
 
    connect(&m_notifier, &QWinEventNotifier::activated, this, &QAutoResetEventWin32::activated);
 
    m_notifier.setHandle(m_handle);
    m_notifier.setEnabled(true);
}
 
QAutoResetEventWin32::~QAutoResetEventWin32()
{
    if (m_handle)
        ::CloseHandle(m_handle);
}
 
bool QAutoResetEventWin32::isValid() const
{
    return m_handle;
}
 
void QAutoResetEventWin32::set()
{
    Q_ASSERT(isValid());
 
    bool status = ::SetEvent(m_handle);
    if (!status)
        qCritical("QAutoResetEvent::set failed");
}
 
} // namespace QtPrivate
 
QT_END_NAMESPACE
 
#include "moc_qautoresetevent_win32_p.cpp"