tree 785ee2b142557939ef076d8dd50502dde98a8746
parent 31f453f30fdd26b4c5d95a3825e38ed3c5580274
author Oli Lan <olilan@google.com> 1568205523 +0100
committer Oli Lan <olilan@google.com> 1568890369 +0100

Add per-Rollback synchronisation.

This adds a lock object to each Rollback that should be acquired before
accessing any rollback state.

For now, this synchronisation has been added 'in-place' in
RollbackManagerServiceImpl. Future changes will move rollback functionality
from that class into the Rollback class, which will allow the synchronisation
to be handled internally within the Rollback.

Bug: 136241838
Test: atest RollbackTest
Test: atest CtsStagedInstallHostTestCases
Test: atest CtsRollbackManagerHostTestCases
Change-Id: I995f1647ccf0410a8832f097236482552729f4c8