src/esi/Segment.h

   1 /*
   2  * Copyright (C) 1996-2015 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_ESISEGMENT_H
  10 #define SQUID_ESISEGMENT_H
  11
  12 /* TODO: Factor the store memory segment management into a reusable code block
  13  * or perhaps use membuffers here?
  14  */
  15
  16 #include "base/RefCount.h"
  17 #include "cbdata.h"
  18 #include "defines.h"
  19 #include "SquidString.h"
  20
  21 class ESISegment : public RefCountable
  22 {
  23
  24 public:
  25     typedef RefCount<ESISegment> Pointer;
  26     static void ListAppend (Pointer &, char const *, size_t);
  27     static void ListTransfer (Pointer &from, Pointer &to);
  28     void *operator new (size_t byteCount);
  29     void operator delete (void *address);
  30
  31     ESISegment();
  32     ESISegment(ESISegment const &);
  33     ESISegment::Pointer cloneList() const;
  34     char *listToChar() const;
  35     void listAppend (char const *s, size_t length);
  36     void adsorbList (ESISegment::Pointer from);
  37     size_t space() const;
  38
  39     char buf[HTTP_REQBUF_SZ];
  40     size_t len; /* how much data has been pushed into this */
  41     Pointer next;
  42     size_t append(char const *, size_t);
  43     size_t append (Pointer);
  44     ESISegment const *tail() const;
  45     ESISegment *tail();
  46     void dumpToLog() const;
  47
  48 private:
  49     size_t listLength()const;
  50     void dumpOne() const;
  51 };
  52
  53 void ESISegmentFreeList (ESISegment::Pointer &head);
  54
  55 #endif /* SQUID_ESISEGMENT_H */
  56