bool zofits::writeCompressedDataToDisk ( char *  src, const uint32_t  sizeToWrite  )

inlineprotected

Actually does the writing to disk (and checksuming)

Parameters

src	the buffer to write
sizeToWrite	how many bytes should be written

Returns

the state of the file

Definition at line 656 of file zofits.h.

        {
            char* checkSumPointer = src+4;
            int32_t extraBytes = 0;
            uint32_t sizeToChecksum = sizeToWrite;

            //should we extend the array to the left ?
            if (fCheckOffset != 0)
            {
                sizeToChecksum  += fCheckOffset;
                checkSumPointer -= fCheckOffset;
                memset(checkSumPointer, 0, fCheckOffset);
            }

            //should we extend the array to the right ?
            if (sizeToChecksum%4 != 0)
            {
                extraBytes = 4 - (sizeToChecksum%4);
                memset(checkSumPointer+sizeToChecksum, 0, extraBytes);
                sizeToChecksum += extraBytes;
            }

            //do the checksum
            fDataSum.add(checkSumPointer, sizeToChecksum);

            fCheckOffset = (4 - extraBytes)%4;

            //write data to disk
            write(src+4, sizeToWrite);

            return good();
        }