blobstream.cpp
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- /*
- * ===========================================================================
- * PRODUCTION $Log: blobstream.cpp,v $
- * PRODUCTION Revision 1000.2 2004/06/01 19:18:06 gouriano
- * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.7
- * PRODUCTION
- * ===========================================================================
- */
- /* $Id: blobstream.cpp,v 1000.2 2004/06/01 19:18:06 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: blobstream.cpp,v 1000.2 2004/06/01 19:18:06 gouriano Exp $
- *
- * Author: Michael Kholodov
- *
- * File Description: stream implementation for reading and writing BLOBs
- *
- *
- * $Log: blobstream.cpp,v $
- * Revision 1000.2 2004/06/01 19:18:06 gouriano
- * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.7
- *
- * Revision 1.7 2004/05/17 21:10:28 gorelenk
- * Added include of PCH ncbi_pch.hpp
- *
- * Revision 1.6 2004/03/12 16:27:09 sponomar
- * correct nested querys
- *
- * Revision 1.4 2002/08/26 15:35:56 kholodov
- * Added possibility to disable transaction log
- * while updating BLOBs
- *
- * Revision 1.3 2002/07/08 16:04:15 kholodov
- * Reformatted
- *
- * Revision 1.2 2002/05/13 19:08:44 kholodov
- * Modified: source code is included in NCBI namespace
- *
- * Revision 1.1 2002/01/30 14:51:20 kholodov
- * User DBAPI implementation, first commit
- *
- *
- *
- *
- */
- #include <ncbi_pch.hpp>
- #include "blobstream.hpp"
- #include <dbapi/driver/exception.hpp>
- #include <dbapi/driver/interfaces.hpp>
- #include <dbapi/driver/public.hpp>
- BEGIN_NCBI_SCOPE
- CBlobIStream::CBlobIStream(CDB_Result* rs, streamsize bufsize)
- : istream(new CByteStreamBuf(bufsize))
- {
- ((CByteStreamBuf*)rdbuf())->SetRs(rs);
- }
- CBlobIStream::~CBlobIStream()
- {
- delete rdbuf();
- }
- CBlobOStream::CBlobOStream(CDB_Connection* connAux,
- I_ITDescriptor* desc,
- size_t datasize,
- streamsize bufsize,
- bool log_it)
- : ostream(new CByteStreamBuf(bufsize)), m_desc(desc), m_conn(connAux)
- {
- if( log_it ) {
- _TRACE("CBlobOStream::ctor(): Transaction log enabled");
- }
- else {
- _TRACE("CBlobOStream::ctor(): Transaction log disabled");
- }
- ((CByteStreamBuf*)rdbuf())->SetCmd(m_conn->SendDataCmd(*m_desc, datasize, log_it));
- }
- CBlobOStream::CBlobOStream(CDB_CursorCmd* curCmd,
- unsigned int item_num,
- size_t datasize,
- streamsize bufsize,
- bool log_it)
- : ostream(new CByteStreamBuf(bufsize)), m_desc(0), m_conn(0)
- {
- if( log_it ) {
- _TRACE("CBlobOStream::ctor(): Transaction log enabled");
- }
- else {
- _TRACE("CBlobOStream::ctor(): Transaction log disabled");
- }
- ((CByteStreamBuf*)rdbuf())->SetCmd(curCmd->SendDataCmd(item_num, datasize, log_it));
- }
- CBlobOStream::~CBlobOStream()
- {
- delete rdbuf();
- delete m_desc;
- delete m_conn;
- }
- END_NCBI_SCOPE