/****************************************************************************
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** Copyright (C) 2020 The Qt Company Ltd.
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** This file is part of the QtNetwork module of the Qt Toolkit.
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#ifndef QTLS_UTILS_P_H
#define QTLS_UTILS_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtNetwork/private/qtnetworkglobal_p.h>

#if QT_CONFIG(openssl)
#include <QtNetwork/private/qsslsocket_openssl_p.h>
#endif

#include <QtNetwork/private/qssl_p.h>

#include <QtCore/qglobal.h>
#include <QtCore/qdebug.h>

#include <memory>

QT_BEGIN_NAMESPACE

namespace QTlslUtils
{

template <class NativeTlsType, void (*Deleter)(NativeTlsType *)>
void safe_delete(NativeTlsType *object)
{
    static_assert (Deleter, "safe_delete: invalid (nullptr) function pointer provided");

    if (object)
        Deleter(object);
}

template<class NativeTlsType, int ok, int (*Deleter)(NativeTlsType *)>
void safe_delete(NativeTlsType *object)
{
    static_assert (Deleter, "safe_delete: invalid (nullptr) function pointer provided");

    if (object) {
        if (Deleter(object) != ok) {
            qCWarning(lcSsl, "Failed to free a resource.");
#if QT_CONFIG(openssl) // || wolfssl later
            QSslSocketBackendPrivate::logAndClearErrorQueue();
#endif // QT_CONFIG(openssl)
        }
    }
}

template<class NativeTlsType>
using Deleter = std::unique_ptr<NativeTlsType, void (*)(NativeTlsType *)>;

} // namespace QTlsUtils

QT_END_NAMESPACE

#endif // QTLS_UTILS_P_H
