NAME
Message::Passing::ZeroMQ::Role::HasASocket - Role for instances which have a ZeroMQ socket.
ATTRIBUTES
socket_bind
Bind a server to an address.
For example tcp://*:5222 to make a server listening on a port on all of the host's addresses, or tcp://127.0.0.1:5222 to bind the socket to a specific IP on the host.
connect
Connect to a server. For example tcp://127.0.0.1:5222.
This option is mutually exclusive with socket_bind, as sockets can connect in one direction only.
socket_type
The connection direction can be either the same as, or the opposite of the message flow direction.
The currently supported socket types are:
PUB
This socket publishes messages to zero or more subscribers.
All subscribers get a copy of each message.
SUB
The pair of PUB, receives broadcast messages.
PUSH
This socket type distributes messages in a round-robin fashion between subscribers. Therefore N subscribers will see 1/N of the message flow.
PULL
The pair of PUSH, receives a proportion of messages distributed.
linger
Bool indicating the value of the ZMQ_LINGER options.
Defaults to 0 meaning sockets will not block on shutdown if a server is unavailable (i.e. queued messages will be discarded).
socket_hwm
Set the High Water Mark for the socket. Depending on the socket type, messages are likely to be discarded once this high water mark is exceeded (i.e. there are more than this many messages buffered).
A value of 0 disables the high water mark, meaning that messages will be buffered until RAM runs out.
METHODS
setsockopt
For wrapping by sub-classes to set options after the socket is created.
SPONSORSHIP
This module exists due to the wonderful people at Suretec Systems Ltd. <http://www.suretecsystems.com/> who sponsored its development for its VoIP division called SureVoIP <http://www.surevoip.co.uk/> for use with the SureVoIP API - <http://www.surevoip.co.uk/support/wiki/api_documentation>