Packable.h

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/*
 * Copyright (C) 1996-2025 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_PACKABLE_H
#define SQUID_SRC_BASE_PACKABLE_H
 
class Packable
{
public:
    virtual ~Packable() {}
 
    virtual void append(const char *buf, int size) = 0;
 
    void appendf(const char *fmt,...) PRINTF_FORMAT_ARG2
    {
        va_list args;
        va_start(args, fmt);
        vappendf(fmt, args);
        va_end(args);
    }
 
    virtual void vappendf(const char *fmt, va_list ap) = 0;
 
    virtual void buffer() {}
 
    virtual void flush() {}
};
 
#endif /* SQUID_SRC_BASE_PACKABLE_H */