SupportOrVeto.h

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/*
 * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */
 
#ifndef SQUID_SRC_BASE_SUPPORTORVETO_H
#define SQUID_SRC_BASE_SUPPORTORVETO_H
 
#include <optional>
 
class SupportOrVeto
{
public:
    bool decision() const { return decision_.value_or(false); }
 
    operator bool() const { return decision(); }
 
    void support() { if (!decision_) decision_ = true; }
 
    void veto() { decision_ = false; }
 
private:
    std::optional<bool> decision_;
};
 
#endif /* SQUID_SRC_BASE_SUPPORTORVETO_H */