src/HttpHdrCc.cci

   1 /*
   2  * Copyright (C) 1996-2014 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 65    HTTP Cache Control Header */
  10
  11 #include "Debug.h"
  12 #include "defines.h"
  13
  14 bool
  15 HttpHdrCc::isSet(http_hdr_cc_type id) const
  16 {
  17     assert(id>=CC_PUBLIC && id < CC_ENUM_END);
  18     return EBIT_TEST(mask,id);
  19 }
  20
  21 void
  22 HttpHdrCc::setMask(http_hdr_cc_type id, bool newval)
  23 {
  24     if (newval)
  25         EBIT_SET(mask,id);
  26     else
  27         EBIT_CLR(mask,id);
  28 }
  29
  30 /// set a data member to a new value, and set the corresponding mask-bit.
  31 /// if setting is false, then the mask-bit is cleared.
  32 void
  33 HttpHdrCc::setValue(int32_t &value, int32_t new_value, http_hdr_cc_type hdr, bool setting)
  34 {
  35     if (setting) {
  36         if (new_value < 0) {
  37             debugs(65,3,HERE << "rejecting negative-value Cache-Control directive " << hdr
  38                    << " value " << new_value );
  39             return;
  40         }
  41     } else {
  42         new_value=-1; //rely on the convention that "unknown" is -1
  43     }
  44
  45     value=new_value;
  46     setMask(hdr,setting);
  47 }
  48