Merged requested to merge feature/ro-filsystem into main
This MR proposes to access the LMDB address table for lookups in a lock-less and read-only fashion. The idea stems from cmsgemonline/gem-ops/gem-daq-doc#2 (closed) which requires mounting the
/mnt/persistent CTP7 partition in read-only mode for safe operations. Even with the absence of a lock, the read-only nature of the LMDB lookups allows for concurrent safe accesses. Care has been taken to also ensure safe address table updates.
Required to implement cmsgemonline/gem-ops/gem-daq-doc#2 (closed)
How Has This Been Tested?
The address table can be created and used seamlessly in the CVP13 build. Pending tests in production on the CTP7.
Types of changes
Bug fix (non-breaking change which fixes an issue)
New feature (non-breaking change which adds functionality)
Breaking change (fix or feature that would cause existing functionality to change)
My code follows the code style of this project.
My change requires a change to the documentation.
I have updated the documentation accordingly.
I have read the CONTRIBUTING document.
I have added tests to cover my changes.
All new and existing tests passed.