include/opencascade/BinObjMgt_Position.hxx

0001 // Copyright (c) 2021 OPEN CASCADE SAS
0002 //
0003 // This file is part of Open CASCADE Technology software library.
0004 //
0005 // This library is free software; you can redistribute it and/or modify it under
0006 // the terms of the GNU Lesser General Public License version 2.1 as published
0007 // by the Free Software Foundation, with special exception defined in the file
0008 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0009 // distribution for complete text of the license and disclaimer of any warranty.
0010 //
0011 // Alternatively, this file may be used under the terms of Open CASCADE
0012 // commercial license or contractual agreement.
0013
0014 #ifndef _BinObjMgt_Position_HeaderFile
0015 #define _BinObjMgt_Position_HeaderFile
0016
0017 #include <Standard_Type.hxx>
0018
0019 //! Stores and manipulates position in the stream.
0020 class BinObjMgt_Position : public Standard_Transient
0021 {
0022 public:
0023   DEFINE_STANDARD_ALLOC
0024
0025   //! Creates position using the current stream position.
0026   Standard_EXPORT BinObjMgt_Position(Standard_OStream& theStream);
0027
0028   //! Stores the difference between the current position and the stored one.
0029   Standard_EXPORT void StoreSize(Standard_OStream& theStream);
0030   //! Writes stored size at the stored position. Changes the current stream position.
0031   //! If theDummy is true, is writes to the current position zero size.
0032   Standard_EXPORT void WriteSize(Standard_OStream& theStream, const bool theDummy = false);
0033
0034   DEFINE_STANDARD_RTTIEXT(BinObjMgt_Position, Standard_Transient)
0035
0036 private:
0037   std::streampos myPosition;
0038   uint64_t       mySize;
0039 };
0040
0041 #endif // _BinObjMgt_Position_HeaderFile