Method GetDataForReading

src/db/blockrecordarray.cpp:427–455

////////////////////////////////////////////////////////////////////////// GetDataForReading //////////////////////////////////////////////////////////////////////////

// GetDataForReading
///////////////////////////////////////////////////////////////////////////////
int8* cBlockRecordArray::GetDataForReading(int index, int32& dataSize) //throw (eArchive)
{
    // make ourselves initialized, if we are not right now...
    //
    if (!Initialized())
    {
        InitForExistingBlock();
    }

    ASSERT(IsItemValid(index));
    cBlockFile::Block* pBlock     = mpBlockFile->GetBlock(mBlockNum);
    tIndexArray&       indexArray = util_GetIndexArray(pBlock);
    //
    // figure out the size of the block
    //
    dataSize = indexArray.maRecordIndex[index].GetOffset();
    if (index != 0)
    {
        dataSize -= indexArray.maRecordIndex[index - 1].GetOffset();
    }

#ifdef _BLOCKFILE_DEBUG
    AssertValid();
    mpBlockFile->AssertValid();
#endif


    return (util_OffsetToAddr(pBlock, indexArray.maRecordIndex[index].GetOffset()));
}

///////////////////////////////////////////////////////////////////////////////
// GetDataForWriting