src/adaptation/icap/InOut.h

   1 /*
   2  * Copyright (C) 1996-2020 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 #ifndef SQUID_ICAPINOUT_H
  10 #define SQUID_ICAPINOUT_H
  11
  12 #include "HttpReply.h"
  13
  14 // IcapInOut manages a pointer to the HTTP message being worked on.
  15 // For HTTP responses, request header information is also available
  16 // as the "cause". ICAP transactions use this class to store virgin
  17 // and adapted HTTP messages.
  18
  19 namespace Adaptation
  20 {
  21 namespace Icap
  22 {
  23
  24 class InOut
  25 {
  26
  27 public:
  28     // TODO: s/Header/Message/i ?
  29     typedef Http::Message Header;
  30
  31     InOut(): header(0), cause(0) {}
  32
  33     ~InOut() {
  34         HTTPMSGUNLOCK(cause);
  35         HTTPMSGUNLOCK(header);
  36     }
  37
  38     void setCause(HttpRequest *r) {
  39         if (r) {
  40             HTTPMSGUNLOCK(cause);
  41             cause = r;
  42             HTTPMSGLOCK(cause);
  43         } else {
  44             assert(!cause);
  45         }
  46     }
  47
  48     void setHeader(Header *h) {
  49         HTTPMSGUNLOCK(header);
  50         header = h;
  51         HTTPMSGLOCK(header);
  52         body_pipe = header->body_pipe;
  53     }
  54
  55 public:
  56     // virgin or adapted message being worked on
  57     Header *header;   // parsed HTTP status/request line and headers
  58
  59     // HTTP request header for HTTP responses (the cause of the response)
  60     HttpRequest *cause;
  61
  62     // Copy of header->body_pipe, in case somebody moves the original.
  63     BodyPipe::Pointer body_pipe;
  64 };
  65
  66 } // namespace Icap
  67 } // namespace Adaptation
  68
  69 #endif /* SQUID_ICAPINOUT_H */
  70