func (r *Receiver) handleTransfer(conn io.ReadWriter) (
transfer.TransferResults, error,
) {
if _, err := conn.Write([]byte("ok")); err != nil {
return transfer.TransferResults{}, err
}
res := transfer.TransferResults{}
buffer := make([]byte, 1024)
startTime := time.Now()
for {
n, err := conn.Read(buffer)
if err != nil { // done reading
break
}
res.BytesSent += uint32(n)
res.Checksum = crc32.Update(res.Checksum, crc32.IEEETable, buffer)
}
endTime := time.Now()
res.Duration = endTime.Sub(startTime)
return res, nil
}
func (s *Sender) sendData(conn io.ReadWriter, size uint32, block []byte) (
transfer.TransferResults, error,
) {
res := transfer.TransferResults{}
packetsAmt := uint32(size / 1024)
startTime := time.Now()
for i := uint32(0); i < packetsAmt; i++ {
n, err := conn.Write(block)
if err != nil {
return transfer.TransferResults{}, err
}
res.BytesSent += uint32(n)
res.Checksum = crc32.Update(res.Checksum, crc32.IEEETable, block)
}
endTime := time.Now()
res.Duration = endTime.Sub(startTime)
return res, nil
}