- db-flags flag-name #!optional seedprocedure
Returns the bit mask for an LMDB flag, combined with the optional seed mask. To combine several flags, pass the result of one call as the seed of the next. Returns #f for an unknown flag name. The flag names are:
- #:fixed-map
- mmap at a fixed address
- #:no-subdirectory
- no environment directory
- #:read-only
- read only
- #:write-map
- use a writable mmap
- #:no-meta-sync
- do not fsync the metapage after commit
- #:no-sync
- do not fsync after commit
- #:map-async
- use asynchronous sync when #:write-map is used
- #:no-lock
- do not do locking
- #:no-read-ahead
- do not do readahead