tree d5e5261cd985f8b9167aa1e449dde4f31d97228c
parent 24f83e25011ea0a60b0a8fe1f344c4d3e3f09298
author Girish Gowdra <girish@opennetworking.org> 1585625931 -0700
committer Girish Gowdra <girish@opennetworking.org> 1585697921 -0700

[VOL-2848] : Protect concurrent access for PON resources

Flows currently were serialized on a per ONU basis. However flows
from different ONUs could add/remove concurrently. This meant
possible concurrent access of PON resources. In some tests it was
seen that two ONUs got same resource (like FlowID) and traffic
would fail.
This new change makes concurrent access to get/put/delete on shared PON resource pools
on KV store protected by locks. The adapter maintains certain data on
the KV store on a per ONU basis and this does not need any protection
as the key path are unique and provide inherant protection and moreover
any flow operation on a given ONU is serialized, this is not to worry.

Change-Id: I8a452a7ae84413741cbc2fa24ae42f4329748e32