native stream


def STREAM_CREATE_FILE     1 =STREAM_CREATE_FILE
def STREAM_CREATE_SOCKET   2 =STREAM_CREATE_SOCKET
def STREAM_READ            3 =STREAM_READ
def STREAM_WRITE           4 =STREAM_WRITE

"not implemented:" #
    "def STREAM_AREAD           5 =STREAM_AREAD" #
    "def STREAM_AWRITE          6 =STREAM_AWRITE" #