Add a 'lockFile' method for file connections and use for DB1 databases
tree77a7676a3dc4f2171bb8ea4418439f528a278b24
-rw-r--r-- 376 DESCRIPTION
-rw-r--r-- 1153 NAMESPACE
drwxr-xr-x - R
drwxr-xr-x - inst
drwxr-xr-x - man
drwxr-xr-x - src
drwxr-xr-x - tests