src/HttpHdrScTarget.cc

   1
   2 /*
   3  * DEBUG: section 90    HTTP Cache Control Header
   4  * AUTHOR: Alex Rousskov
   5  *         Robert Collins (Surrogate-Control is derived from
   6  *                         Cache-Control).
   7  *
   8  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   9  * ----------------------------------------------------------
  10  *
  11  *  Squid is the result of efforts by numerous individuals from
  12  *  the Internet community; see the CONTRIBUTORS file for full
  13  *  details.   Many organizations have provided support for Squid's
  14  *  development; see the SPONSORS file for full details.  Squid is
  15  *  Copyrighted (C) 2001 by the Regents of the University of
  16  *  California; see the COPYRIGHT file for full details.  Squid
  17  *  incorporates software developed and/or copyrighted by other
  18  *  sources; see the CREDITS file for full details.
  19  *
  20  *  This program is free software; you can redistribute it and/or modify
  21  *  it under the terms of the GNU General Public License as published by
  22  *  the Free Software Foundation; either version 2 of the License, or
  23  *  (at your option) any later version.
  24  *
  25  *  This program is distributed in the hope that it will be useful,
  26  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  27  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28  *  GNU General Public License for more details.
  29  *
  30  *  You should have received a copy of the GNU General Public License
  31  *  along with this program; if not, write to the Free Software
  32  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  33  *
  34  */
  35
  36 #include "squid.h"
  37 #include "HttpHdrSc.h"
  38 #include "StatHist.h"
  39
  40 http_hdr_sc_type &operator++ (http_hdr_sc_type &aHeader);
  41 /* copies non-extant fields from new_sc to this sc */
  42 void
  43 HttpHdrScTarget::mergeWith(const HttpHdrScTarget * new_sc)
  44 {
  45     assert(new_sc);
  46     /* Don't touch the target - this is used to get the operations for a
  47      * single surrogate
  48      */
  49
  50     if (new_sc->hasNoStore())
  51         noStore(true);
  52
  53     if (new_sc->hasNoStoreRemote())
  54         noStoreRemote(true);
  55
  56     if (new_sc->hasMaxAge() && !hasMaxAge()) {
  57         maxAge(new_sc->maxAge());
  58         maxStale(new_sc->maxStale());
  59     }
  60
  61     if (new_sc->hasContent() && !hasContent())
  62         Content(new_sc->content());
  63
  64 }
  65
  66 void
  67 HttpHdrScTarget::updateStats(StatHist * hist) const
  68 {
  69     http_hdr_sc_type c;
  70
  71     for (c = SC_NO_STORE; c < SC_ENUM_END; ++c)
  72         if (isSet(c))
  73             hist->count(c);
  74 }