Class implementing asynchronous reading and writing.
        
            | Methods |  | 
        
        | __init__ disconnect
 readReady
 setDescriptors
 write
 writeReady
 
 | 
            |  | __init__ | 
        
        | 
__init__ ( self )
 Constructor        Arguments
            parentthe optional parent of this object (QObject) (ignored) | 
            |  | disconnect | 
        
        | 
disconnect ( self )
 Public method to disconnect any current connection. | 
            |  | readReady | 
        
        | 
readReady ( self,  fd )
 Protected method called when there is data ready to be read.        Arguments
            fdfile descriptor of the file that has data to be read (int) | 
            |  | setDescriptors | 
        
        | 
setDescriptors (
        self,
        rfd,
        wfd,
        )
Public method called to set the descriptors for the connection.        Arguments
            rfdfile descriptor of the input file (int)            wfdfile descriptor of the output file (int) | 
            |  | write | 
        
        | 
write ( self,  s )
 Public method to write a string.        Arguments
            sthe data to be written (string) | 
            |  | writeReady | 
        
        | 
writeReady ( self,  fd )
 Protected method called when we are ready to write data.        Arguments
            fdfile descriptor of the file that has data to be written (int) |