tree bfe49efecdfe6f47bf79acf9c81ecd071f5208bc
parent 1712deb1159bd59b43a85dc78a26e5f2ca426179
author Yurii Zubrytskyi <zyy@google.com> 1664494984 -0700
committer Yurii Zubrytskyi <zyy@google.com> 1664494984 -0700

[security] Make frro iteration thread-safe

Add a lock over all frro iterator methods to make sure the
iterator isn't changed or removed from under the iteration
call while it's running.

+ Also introduce an ID ensuring the caller is the same for
  all the acquire/next/release methods

+ a bit of moves where they were supposed to be from the start

Bug: 245727875
Test: manual + presubmits
Change-Id: Ie585b6d113ebddee491c9ee433f070bed71a57cc