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121 lines
4.3 KiB
C++
121 lines
4.3 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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Portions based on SOCI - The C++ Database Access Library:
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SOCI: http://soci.sourceforge.net/
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This file incorporates work covered by the following copyright
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and permission notice:
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Copyright (C) 2004 Maciej Sobczak, Stephen Hutton, Mateusz Loskot,
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Pawel Aleksander Fedorynski, David Courtney, Rafal Bobrowski,
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Julian Taylor, Henning Basold, Ilia Barahovski, Denis Arnaud,
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Daniel Lidström, Matthieu Kermagoret, Artyom Beilis, Cory Bennett,
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Chris Weed, Michael Davidsaver, Jakub Stachowski, Alex Ott, Rainer Bauer,
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Martin Muenstermann, Philip Pemberton, Eli Green, Frederic Chateau,
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Artyom Tonkikh, Roger Orr, Robert Massaioli, Sergey Nikulov,
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Shridhar Daithankar, Sören Meyer-Eppler, Mario Valesco.
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Boost Software License - Version 1.0, August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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//==============================================================================
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namespace sqdb
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{
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blob::blob()
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: m_blob(0)
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{
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}
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blob::~blob()
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{
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close();
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}
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Error blob::select(session& s,
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char const* zTable,
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char const* zColumn,
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rowid id,
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bool readAndWrite) noexcept
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{
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close();
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m_session = &s;
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int result = sqlite3_blob_open(s.get_connection(),
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"main",
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zTable,
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zColumn,
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id,
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readAndWrite ? 1 : 0,
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&m_blob);
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return detail::sqliteError(__FILE__, __LINE__, result);
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}
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std::size_t blob::get_len()
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{
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return sqlite3_blob_bytes(m_blob);
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}
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Error blob::read(std::size_t offset, void* buf, std::size_t toRead)
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{
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return detail::sqliteError(__FILE__, __LINE__,
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sqlite3_blob_read(m_blob, static_cast<char*>(buf), toRead, offset));
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}
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Error blob::write(std::size_t offset, void const* buf, std::size_t toWrite)
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{
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return detail::sqliteError(__FILE__, __LINE__,
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sqlite3_blob_write(m_blob, buf, toWrite, offset));
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}
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void blob::close()
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{
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if (m_blob)
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{
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sqlite3_blob_close(m_blob);
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m_blob = 0;
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}
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}
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}
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