hio.core.udp.udping

hio.core.udping Module

Module Contents

Classes

Peer	Class to manage non blocking I/O on UDP socket.

Attributes

logger
UDP_MAX_DATAGRAM_SIZE
UDP_MAX_SAFE_PAYLOAD
UDP_MAX_PACKET_SIZE

hio.core.udp.udping.logger

hio.core.udp.udping.UDP_MAX_DATAGRAM_SIZE

hio.core.udp.udping.UDP_MAX_SAFE_PAYLOAD = 548

hio.core.udp.udping.UDP_MAX_PACKET_SIZE

class hio.core.udp.udping.Peer(ha=None, host='', port=55000, bufsize=1024, wl=None, bcast=False)

Bases: object

Class to manage non blocking I/O on UDP socket.

actualBufSizes(self)

Returns duple of the the actual socket send and receive buffer size (send, receive)

open(self)

Opens socket in non blocking mode.

if socket not closed properly, binding socket gets error

OSError: (48, ‘Address already in use’)

reopen(self)

Idempotently open socket

close(self)

Closes socket and logs if any

receive(self)

Perform non blocking read on socket.

returns tuple of form (data, sa) if no data then returns (b’’,None) but always returns a tuple with two elements

send(self, data, da)

Perform non blocking send on socket.

data is string in python2 and bytes in python3 da is destination address tuple (destHost, destPort)