tree b1accaf6df8ea2a8c7d9f4814ee18cb71ffced60
parent b338560b1b7ef7759ffb579ff435df847110a0cc
author Brad Bishop <bradleyb@us.ibm.com> 1458312446 -0400
committer Brad Bishop <bradleyb@us.ibm.com> 1458317191 -0400

Add cache access and signal validation wrappers

Use of the main cache structure will grow so added some wrappers
that automate initialization and cleanup.

Refactored duplicate signal handler bus/interface validation
logic into reusable functions.

Updated discovery and signal handlers to make use of all these
new functions.