bytestreambuf.hpp
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- /*
- * ===========================================================================
- * PRODUCTION $Log: bytestreambuf.hpp,v $
- * PRODUCTION Revision 1000.1 2004/04/21 14:47:46 gouriano
- * PRODUCTION PRODUCTION: UPGRADED [CATCHUP_003] Dev-tree R1.3
- * PRODUCTION
- * ===========================================================================
- */
- #ifndef _BYTESTREAMBUF_HPP_
- #define _BYTESTREAMBUF_HPP_
- /* $Id: bytestreambuf.hpp,v 1000.1 2004/04/21 14:47:46 gouriano Exp $
- * ===========================================================================
- *
- * PUBLIC DOMAIN NOTICE
- * National Center for Biotechnology Information
- *
- * This software/database is a "United States Government Work" under the
- * terms of the United States Copyright Act. It was written as part of
- * the author's official duties as a United States Government employee and
- * thus cannot be copyrighted. This software/database is freely available
- * to the public for use. The National Library of Medicine and the U.S.
- * Government have not placed any restriction on its use or reproduction.
- *
- * Although all reasonable efforts have been taken to ensure the accuracy
- * and reliability of the software and data, the NLM and the U.S.
- * Government do not and cannot warrant the performance or results that
- * may be obtained by using this software or data. The NLM and the U.S.
- * Government disclaim all warranties, express or implied, including
- * warranties of performance, merchantability or fitness for any particular
- * purpose.
- *
- * Please cite the author in any work or product based on this material.
- *
- * ===========================================================================
- *
- * File Name: $Id: bytestreambuf.hpp,v 1000.1 2004/04/21 14:47:46 gouriano Exp $
- *
- * Author: Michael Kholodov
- *
- * File Description: streambuf implementation for BLOBs
- *
- *
- * $Log: bytestreambuf.hpp,v $
- * Revision 1000.1 2004/04/21 14:47:46 gouriano
- * PRODUCTION: UPGRADED [CATCHUP_003] Dev-tree R1.3
- *
- * Revision 1.3 2002/05/14 19:51:48 kholodov
- * Fixed: incorrect column no handling for detecting end of column
- *
- * Revision 1.2 2002/05/13 19:11:53 kholodov
- * Modified: added proper handling of EOFs while reading column data using CDB_Result::CurrentItemNo().
- *
- * Revision 1.1 2002/01/30 14:51:22 kholodov
- * User DBAPI implementation, first commit
- *
- *
- *
- */
- #include <corelib/ncbistd.hpp>
- #include <corelib/ncbistre.hpp>
- //#include <iostream>
- #include <dbapi/driver/interfaces.hpp>
- BEGIN_NCBI_SCOPE
- class CByteStreamBuf : public streambuf
- {
- public:
- CByteStreamBuf(streamsize bufsize);
- virtual ~CByteStreamBuf();
- void SetCmd(CDB_SendDataCmd* cmd);
- void SetRs(CDB_Result* rs);
- protected:
- virtual streambuf* setbuf(CT_CHAR_TYPE* p, streamsize n);
- virtual CT_INT_TYPE underflow();
- virtual streamsize showmanyc();
- virtual CT_INT_TYPE overflow(CT_INT_TYPE c);
- virtual int sync();
-
- private:
- CT_CHAR_TYPE* getGBuf();
- CT_CHAR_TYPE* getPBuf();
- CT_CHAR_TYPE* m_buf;
- streamsize m_size;
- streamsize m_len;
- class CDB_Result* m_rs;
- class CDB_SendDataCmd* m_cmd;
- int m_column;
- };
- END_NCBI_SCOPE
- //=================================================================
- #endif // _BYTESTREAMBUF_HPP_