| mdb_env(3) | Library Functions Manual | mdb_env(3) |
mdb_env
#define MDB_FIXEDMAP 0x01
#define MDB_NOSUBDIR 0x4000
#define MDB_NOSYNC 0x10000
#define MDB_RDONLY 0x20000
#define MDB_NOMETASYNC 0x40000
#define MDB_WRITEMAP 0x80000
#define MDB_MAPASYNC 0x100000
#define MDB_NOTLS 0x200000
#define MDB_NOLOCK 0x400000
#define MDB_NORDAHEAD 0x800000
#define MDB_NOMEMINIT 0x1000000
mmap at a fixed address (experimental)
no environment directory
don't fsync after commit
read only
don't fsync metapage after commit
use writable mmap
use asynchronous msync when MDB_WRITEMAP is used
tie reader locktable slots to MDB_txn objects instead of to threads
don't do any locking, caller must manage their own locks
don't do readahead (no effect on Windows)
don't initialize malloc'd memory before writing to datafile
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| Wed Mar 25 2020 | LMDB |