batchLogIf(ctx, ri.updateAfter(ctx, api, 10*time.Second, job))

			case <-ctx.Done():
				// persist in-memory state immediately before exiting due to context cancellation.
				batchLogIf(ctx, ri.updateAfter(ctx, api, 0, job))
				return

			case <-saverQuitCh:
				// persist in-memory state immediately to disk.
				batchLogIf(ctx, ri.updateAfter(ctx, api, 0, job))
				return
			}
		}