Add garbage collection as a background process and policy
configuration for configuring when to run garbage collection.
By default garbage collection will run when deletion occurs
and no more than 20ms out of every second.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Use single instance of content store instead of
creating new one for each collection. Using new
instance and wrapping causes failures.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Ensures that all callers and the garbage collector are using
the same lock instances to prevent cleanup of objects
during creation.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Marks and sweeps unreferenced objects.
Add snapshot cleanup to metadata.
Add content garbage collection
Add dirty flags for snapshotters and content store which
are set on deletion and used during the next garbage collection.
Cleanup content store backend when content metadata is removed.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Updates metadata plugin to require content and
snapshotter plugins be loaded and initializes with
those plugins, keeping the metadata database structure
static after initialization. Service plugins now only
require metadata plugin access snapshotter or content
stores through metadata, which was already required
behavior of the services.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
