Plugin: zeromqrecv

• infos = Information about the zeromqrecv plugin is in keys below
• infos/author = Thomas Wahringer waht@.nosp@m.libe.nosp@m.lektr.nosp@m.a.or.nosp@m.g
• infos/licence = BSD
• infos/provides = notification
• infos/needs =
• infos/recommends =
• infos/placements = postgetstorage
• infos/status = maintained unittest libc global experimental
• infos/description = Receives notifications using a ZeroMq subscriber socket

Introduction

This plugin is a notification plugin, which receives notifications using ZeroMq subscribe (ZMQ_SUB) sockets from the compatible zeromqsend plugin.

Installation

See installation. The package is called libelektra5-zeromq.

Dependencies

• libzmq3-dev (ZeroMQ C bindings > 3.2)

Usage

The recommended way is to globally mount the plugin together with the zeromqsend plugin:

kdb global-mount zeromqsend zeromqrecv

This plugin is designed to be used as a transport plugin for Elektra's notification feature. If notification is not enabled (i.e. in the tool kdb or in any other application that does not use elektraNotifiationContract()) this plugin does performs no operations.

Since ZeroMQ sockets only provide a 1:n mapping (i.e. one publisher with many subscribers or one subscriber and many publishers) the zeromqsend and zeromqrecv plugins require a XPUB/XSUB endpoint. The kdb tool "hub-zeromq" provides these endpoints.

Transport Plugin

Mount this plugin globally with default settings to use it as receiving transport plugin for Elektra's notification feature:

kdb global-mount zeromqrecv

Configuration

This plugin supports the following configuration options when mounting:

• endpoint: ZeroMQ XPUB or PUB socket to connect to. The ipc and tcp ZeroMQ transports are recommended. The default value is "tcp://localhost:6001".

Notification Format

For the notification format please see the zeromqsend plugin documentation.