include/AD/persist/po_impl.h

   1 #ifndef postream_implementation_h
   2 #define postream_implementation_h
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <AD/hash/lhash2.h>       // linear probing hash table
   6 #include <AD/contain/variset.h>   // variable length integer set
   7
   8 //////////////////////////////////////////////////////////////////////////////
   9 //  The object log is implemented simply as a hash table.
  10 //
  11 //  Object log maps object pointers to
  12 //
  13 //////////////////////////////////////////////////////////////////////////////
  14 class PObjectOrdering {
  15 public:
  16    inline static unsigned int hash (P_ObjectAddr obj)
  17       { return (unsigned int)obj; }
  18    inline static Bool equal (P_ObjectAddr a, P_ObjectAddr b)
  19       { return a == b; }
  20 };
  21
  22 class PObjectLog {
  23    void operator = (const PObjectLog&);
  24    PObjectLog(const PObjectLog&);
  25 public:
  26    struct PObjectInfo {
  27       const PObject * obj;
  28       P_OBJECT_MARKER marker;
  29       inline PObjectInfo() {}
  30       inline PObjectInfo(const PObject * p, P_OBJECT_MARKER m)
  31          : obj(p), marker(m) {}
  32    };
  33    LHashTable2<P_ObjectAddr, PObjectLog::PObjectInfo, PObjectOrdering> markers;
  34    VarIntSet object_types;
  35    PObjectLog(int n);
  36   ~PObjectLog();
  37    void clean();
  38 };
  39
  40 #endif