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32 
33 #pragma once
34 
35 #include "dbCore.h"
36 #include "dbId.h"
37 #include "dbVector.h"
38 #include "odb.h"
39 
40 namespace odb {
41 
42 class dbBlock;
43 class dbLib;
44 class dbMaster;
45 class _dbLib;
46 class _dbMaster;
47 class _dbMTerm;
48 class _dbDatabase;
49 class dbIStream;
50 class dbOStream;
51 class dbDiff;
52 
53 class dbInstHdr : public _dbObject
54 {
55  public:
56   dbBlock* getBlock();
57   dbLib* getLib();
58   dbMaster* getMaster();
59 
60   static dbInstHdr* create(dbBlock* block, dbMaster* master);
61   static void destroy(dbInstHdr* hdr);
62 };
63 
64 class _dbInstHdr : public _dbObject
65 {
66  public:
67   int _mterm_cnt;
68   uint _id;
69   dbId<_dbInstHdr> _next_entry;
70   dbId<_dbLib> _lib;
71   dbId<_dbMaster> _master;
72   dbVector<dbId<_dbMTerm>> _mterms;
73   int _inst_cnt;  // number of instances of this InstHdr
74 
75   _dbInstHdr(_dbDatabase* db);
76   _dbInstHdr(_dbDatabase* db, const _dbInstHdr& i);
77   ~_dbInstHdr();
78   bool operator==(const _dbInstHdr& rhs) const;
79   bool operator!=(const _dbInstHdr& rhs) const { return !operator==(rhs); }
80   void differences(dbDiff& diff,
81                    const char* field,
82                    const _dbInstHdr& rhs) const;
83   void out(dbDiff& diff, char side, const char* field) const;
84 };
85 
86 dbOStream& operator<<(dbOStream& stream, const _dbInstHdr& inst_hdr);
87 dbIStream& operator>>(dbIStream& stream, _dbInstHdr& inst_hdr);
88 
89 }  // namespace odb
90