NewLatencyMetricsListener returns a LatencyMetricsListener that listens over a unix socket for syslog messages from edge.

NewFakeSyslogServer returns a SyslogFakeListener.

LatencyMetricsListener implements the SyslogListener interface.

SyslogFakeListener is a fake implementation of the SyslogListener interface.

SyslogListener is an interface for syslog metrics listener that reads syslog metrics logged by Edgenexus.