tree 726ac4f5392fb8fab8a55443e0e53a92eba5375e
parent c7fed5ca79cfb6b08d5023633072ee8885c4d62f
author Jonathan Doman <jonathan.doman@intel.com> 1669244657 -0800
committer Jonathan Doman <jonathan.doman@intel.com> 1670957337 -0800

Use binary serialization instead of JSON

The binary format is much more efficient than JSON in terms of
computational speed and disk space consumption. The former is important
in case the host is sending a constant stream of POST codes.
post-code-manager can fall behind because it takes too long to store
each new POST code on disk, causing D-Bus messages to pile up and
increase memory consumption inside dbus-broker.

Tested:
Rebooted the host a few times and observed that POST code history is
populated normally in Redfish. After upgrading to this change, old POST
code history stored in JSON format is lost, but remains on disk until it
gets overwritten during subsequent host boots.

Signed-off-by: Jonathan Doman <jonathan.doman@intel.com>
Change-Id: Id55909a55d950e6e62b78b3333df687b4c582c42