mdb_env - Online Linux Manual PageSection : 3
Updated : Sat Feb 4 2023
Source : LMDB

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NAMEmdb_env − Environment Flags

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SYNOPSIS

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Macros#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

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Detailed Description

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Macro Definition Documentation

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#define MDB_FIXEDMAP 0x01mmap at a fixed address (experimental)

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#define MDB_NOSUBDIR 0x4000no environment directory

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#define MDB_NOSYNC 0x10000don't fsync after commit

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#define MDB_RDONLY 0x20000read only

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#define MDB_NOMETASYNC 0x40000don't fsync metapage after commit

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#define MDB_WRITEMAP 0x80000use writable mmap

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#define MDB_MAPASYNC 0x100000use asynchronous msync when MDB_WRITEMAP is used

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#define MDB_NOTLS 0x200000tie reader locktable slots to MDB_txn objects instead of to threads

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#define MDB_NOLOCK 0x400000don't do any locking, caller must manage their own locks

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#define MDB_NORDAHEAD 0x800000don't do readahead (no effect on Windows)

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#define MDB_NOMEMINIT 0x1000000don't initialize malloc'd memory before writing to datafile

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AuthorGenerated automatically by Doxygen for LMDB from the source code​. 0

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Johanes Gumabo

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