commit 8d4e733a2635de583ac2f65896fadae34ce1c1b7
author Guang Zhu <guangzhu@google.com> Thu Jun 23 17:20:47 2016 -0700
committer Guang Zhu <guangzhu@google.com> Fri Jun 24 10:22:55 2016 -0700
tree 30264a140a06f2d0695584f1057741ae72b37a8a
parent 1551ff999d7e26d2477b047e0ac999c5a5b0c66c

add system status checks between module execution

Implemented a mechanism to check system status between CTS module
execution.

- the list of checkers is controlled by an XML config.
- additional checkers can be added by extending SystemStatusChcker
  class and added to the config
- optionally the checkers can be disabled or white/blacklisted
- included an implementation of network connectivity check in
  replacement of existing hardwired connectivity check function.

Bug: 29583180
Change-Id: Iab8dce493ef454fc297633c40244f96cdd01fb33