/*
 * DEBUG: section 90    HTTP Cache Control Header
 * AUTHOR: Alex Rousskov
 *         Robert Collins (Surrogate-Control is derived from
 *         		   Cache-Control).
 *
 * SQUID Web Proxy Cache          http://www.squid-cache.org/
 * ----------------------------------------------------------
 *
 *  Squid is the result of efforts by numerous individuals from
 *  the Internet community; see the CONTRIBUTORS file for full
 *  details.   Many organizations have provided support for Squid's
 *  development; see the SPONSORS file for full details.  Squid is
 *  Copyrighted (C) 2001 by the Regents of the University of
 *  California; see the COPYRIGHT file for full details.  Squid
 *  incorporates software developed and/or copyrighted by other
 *  sources; see the CREDITS file for full details.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 */

#include "squid.h"
#include "HttpHdrSc.h"
#include "StatHist.h"

http_hdr_sc_type &operator++ (http_hdr_sc_type &aHeader);
/* copies non-extant fields from new_sc to this sc */
void
HttpHdrScTarget::mergeWith(const HttpHdrScTarget * new_sc)
{
    assert(new_sc);
    /* Don't touch the target - this is used to get the operations for a
     * single surrogate
     */

    if (new_sc->hasNoStore())
        noStore(true);

    if (new_sc->hasNoStoreRemote())
        noStoreRemote(true);

    if (new_sc->hasMaxAge() && !hasMaxAge()) {
        maxAge(new_sc->maxAge());
        maxStale(new_sc->maxStale());
    }

    if (new_sc->hasContent() && !hasContent())
        Content(new_sc->content());

}

void
HttpHdrScTarget::updateStats(StatHist * hist) const
{
    http_hdr_sc_type c;

    for (c = SC_NO_STORE; c < SC_ENUM_END; ++c)
        if (isSet(c))
            hist->count(c);
}