Method read

mininet/node.py:244–257

Buffered read from node, potentially blocking. size: maximum number of characters to return

( self, size=1024 )

    # Subshell I/O, commands and control

    def read( self, size=1024 ):
        """Buffered read from node, potentially blocking.
           size: maximum number of characters to return"""
        count = len( self.readbuf )
        if count < size:
            data = os.read( self.stdout.fileno(), size - count )
            self.readbuf += self.decoder.decode( data )
        if size >= len( self.readbuf ):
            result = self.readbuf
            self.readbuf = ''
        else:
            result = self.readbuf[ :size ]
            self.readbuf = self.readbuf[ size: ]
        return result

    def readline( self ):
        """Buffered readline from node, potentially blocking.