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firebird-mirror/src/jrd/RecordBuffer.cpp
alexpeshkoff 139331c7e3 Enhanced memory leaks search - changed FB_NEW to FB_NEW_POOL,
plain new to FB_NEW, making allocated with it blocks tagged with file/line.
Make related code slightly better readable.
2015-10-12 14:26:00 +00:00

74 lines
1.8 KiB
C++

/*
* The contents of this file are subject to the Initial
* Developer's Public License Version 1.0 (the "License");
* you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
*
* Software distributed under the License is distributed AS IS,
* WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights
* and limitations under the License.
*
* The Original Code was created by Dmitry Yemanov
* for the Firebird Open Source RDBMS project.
*
* Copyright (c) 2006 Dmitry Yemanov <dimitr@users.sf.net>
* and all contributors signed below.
*
* All Rights Reserved.
* Contributor(s): ______________________________________.
*/
#include "firebird.h"
#include "../common/gdsassert.h"
#include "../jrd/jrd.h"
#include "../jrd/req.h"
#include "../jrd/RecordBuffer.h"
const char* const SCRATCH = "fb_recbuf_";
using namespace Jrd;
RecordBuffer::RecordBuffer(MemoryPool& pool, const Format* format)
: count(0)
{
space = FB_NEW_POOL(pool) TempSpace(pool, SCRATCH);
record = FB_NEW_POOL(pool) Record(pool, format);
}
RecordBuffer::~RecordBuffer()
{
delete record;
delete space;
}
offset_t RecordBuffer::store(const Record* new_record)
{
const ULONG length = record->getLength();
fb_assert(new_record->getLength() == length);
space->write(count * length, new_record->getData(), length);
return count++;
}
bool RecordBuffer::fetch(offset_t position, Record* to_record)
{
const ULONG length = record->getLength();
fb_assert(to_record->getLength() == length);
if (position >= count)
return false;
space->read(position * length, to_record->getData(), length);
return true;
}
const Format* RecordBuffer::getFormat() const
{
return record->getFormat();
}