Constant lmdb::MAP_ASYNC

pub const MAP_ASYNC: EnvironmentFlags = EnvironmentFlags{bits: MDB_MAPASYNC,}

When using WRITE_MAP, use asynchronous flushes to disk. As with NO_SYNC, a system crash can then corrupt the database or lose the last transactions. Calling Environment::sync ensures on-disk database integrity until next commit.

This flag may be changed at any time using Environment::set_flags.