TIdWorkOpUnitReadAvailable
TIdWorkOpUnitReadLn
TIdWorkOpUnitReadSized
TIdWorkOpUnitReadSizedStream
TIdWorkOpUnitReadUntilDisconnect
TIdWorkOpUnitStreamBaseRead
TIdWorkOpUnitStreamBaseWrite
TIdWorkOpUnitWaitConnected
TIdWorkOpUnitWriteBuffer
TIdWorkOpUnitWriteFile
TIdWorkOpUnitWriteStream