tree 33a777c62b7ebaf78cbfc48b8767997623820360
parent b0412d0720760de9e8f62b582cb5edbd242f42b4
author Matt Spinler <spinler@us.ibm.com> 1602686711 -0500
committer Matt Spinler <spinler@us.ibm.com> 1605640621 -0600

monitor: Track fan health in the System object

To prepare for being able to power off the system based on missing fans
or nonfunctional fan sensors, put a global view of this health for all
fans in the System object.  This requires now keeping track of fan
presence.

This information is stored in a map based on the fan name.  It is done
this way, as opposed to just always calling present/functional APIs on
the Fan objects, so that the code that will be using this information
can be tested in isolation without the System or Fan objects.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Ieb1d4003bd13cebc806fd06f0064c63ea8ac6180