src/HttpHdrSc.h

   1
   2 /*
   3  *
   4  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   5  * ----------------------------------------------------------
   6  *
   7  *  Squid is the result of efforts by numerous individuals from
   8  *  the Internet community; see the CONTRIBUTORS file for full
   9  *  details.   Many organizations have provided support for Squid's
  10  *  development; see the SPONSORS file for full details.  Squid is
  11  *  Copyrighted (C) 2001 by the Regents of the University of
  12  *  California; see the COPYRIGHT file for full details.  Squid
  13  *  incorporates software developed and/or copyrighted by other
  14  *  sources; see the CREDITS file for full details.
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License as published by
  18  *  the Free Software Foundation; either version 2 of the License, or
  19  *  (at your option) any later version.
  20  *
  21  *  This program is distributed in the hope that it will be useful,
  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  *  GNU General Public License for more details.
  25  *
  26  *  You should have received a copy of the GNU General Public License
  27  *  along with this program; if not, write to the Free Software
  28  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  29  *
  30  */
  31
  32 #ifndef SQUID_HTTPHDRSURROGATECONTROL_H
  33 #define SQUID_HTTPHDRSURROGATECONTROL_H
  34
  35 #include "dlink.h"
  36 #include "HttpHdrScTarget.h"
  37
  38 class StatHist;
  39
  40 /* http surogate control header field */
  41
  42 class HttpHdrSc
  43 {
  44
  45 public:
  46     HttpHdrSc(const HttpHdrSc &);
  47     HttpHdrSc() {}
  48     ~HttpHdrSc();
  49
  50     bool parse(const String *str);
  51     void packInto(Packer * p) const;
  52     void updateStats(StatHist *) const;
  53     HttpHdrScTarget * getMergedTarget (const char *ourtarget); //todo: make const?
  54     void setMaxAge(char const *target, int max_age);
  55     void addTarget(HttpHdrScTarget *t) {
  56         dlinkAdd(t, &t->node, &targets);
  57     }
  58     void addTargetAtTail(HttpHdrScTarget *t) {
  59         dlinkAddTail (t, &t->node, &targets);
  60     }
  61
  62     MEMPROXY_CLASS(HttpHdrSc);
  63     dlink_list targets;
  64 private:
  65     HttpHdrScTarget * findTarget (const char *target);
  66
  67 };
  68
  69 MEMPROXY_CLASS_INLINE(HttpHdrSc);
  70
  71 /* Http Surrogate Control Header Field */
  72 void httpHdrScStatDumper(StoreEntry * sentry, int idx, double val, double size, int count);
  73 void httpHdrScInitModule (void);
  74 void httpHdrScCleanModule (void);
  75 HttpHdrSc *httpHdrScParseCreate(String const &);
  76 void httpHdrScSetMaxAge(HttpHdrSc *, char const *, int);
  77
  78 #endif /* SQUID_HTTPHDRSURROGATECONTROL_H */