Exemple #1
0
        private int ReadBuffer(byte[] buffer, int ib, int len)
        {
            var b = bgReader.ReadBlock();

            // for the gzip case, the main thread should do the line breaking
            if (offsets.Count != 0)
            {
                LineBreaker.ComputeLineAndFieldOffsets(b);
            }

            int cb = b.cb;

            posNext = b.position;

            if (b.cb > 0)
            {
                Array.Copy(b.buffer, 0, buffer, ib, b.cb);
                Array.Copy(b.offsets, 0, stm_offsets, 0, b.cFields);

                stm_c_offsets = b.cFields;
                stm_i_offset  = 0;
            }

            bgReader.Free(b);

            return(cb);
        }
        private void ProcessAndTransfer(Block b, int cbBuffer)
        {
            if (cbBuffer > 0)
            {
                byte[] buffer        = b.buffer;
                int    ibLastNewline = cbBuffer - 1;

                while (buffer[ibLastNewline] != '\n' && ibLastNewline > 0)
                {
                    ibLastNewline--;
                }

                int ibCopy = ibLastNewline + 1;
                int ib     = 0;
                while (ibCopy < cbBuffer)
                {
                    bufferScratch[ib++] = buffer[ibCopy++];
                }

                cbScratch = ib;

                b.position            = (((long)currentSegment) << 32) + currentSegmentOffset;
                b.cb                  = ibLastNewline + 1;
                currentSegmentOffset += b.cb;

                // for the non-gzip case, the background thread should do the line breaking
                if (offsets.Count == 0)
                {
                    LineBreaker.ComputeLineAndFieldOffsets(b);
                }
            }
            else
            {
                b.position   = -1;
                b.cb         = 0;
                b.offsets[0] = 0;
            }

            lock (blocksReady)
            {
                blocksReady.AddLast(b);
            }

            semaphoreFromBg.Release(1);
        }