src/adaptation/icap/InOut.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_ICAPINOUT_H
  33 #define SQUID_ICAPINOUT_H
  34
  35 #include "HttpMsg.h"
  36 #include "HttpReply.h"
  37 #include "HttpRequest.h"
  38
  39 // IcapInOut manages a pointer to the HTTP message being worked on.
  40 // For HTTP responses, request header information is also available
  41 // as the "cause". ICAP transactions use this class to store virgin
  42 // and adapted HTTP messages.
  43
  44 namespace Adaptation
  45 {
  46 namespace Icap
  47 {
  48
  49 class InOut
  50 {
  51
  52 public:
  53     typedef HttpMsg Header;
  54
  55     InOut(): header(0), cause(0) {}
  56
  57     ~InOut() {
  58         HTTPMSGUNLOCK(cause);
  59         HTTPMSGUNLOCK(header);
  60     }
  61
  62     void setCause(HttpRequest *r) {
  63         if (r) {
  64             HTTPMSGUNLOCK(cause);
  65             cause = r;
  66             HTTPMSGLOCK(cause);
  67         } else {
  68             assert(!cause);
  69         }
  70     }
  71
  72     void setHeader(Header *h) {
  73         HTTPMSGUNLOCK(header);
  74         header = h;
  75         HTTPMSGLOCK(header);
  76         body_pipe = header->body_pipe;
  77     }
  78
  79 public:
  80     // virgin or adapted message being worked on
  81     Header *header;   // parsed HTTP status/request line and headers
  82
  83     // HTTP request header for HTTP responses (the cause of the response)
  84     HttpRequest *cause;
  85
  86     // Copy of header->body_pipe, in case somebody moves the original.
  87     BodyPipe::Pointer body_pipe;
  88 };
  89
  90 // TODO: s/Header/Message/i ?
  91
  92 } // namespace Icap
  93 } // namespace Adaptation
  94
  95 #endif /* SQUID_ICAPINOUT_H */