d0s3t3ch/wownero
1
0
Fork 0
mirror of https://git.wownero.com/wownero/wownero.git synced 2024-08-15 01:03:23 +00:00
Code Issues Projects Releases Wiki Activity

ITS#8704 add MDB_PREVSNAPSHOT flag to mdb_env_open

Browse source 
used to open the previous snapshot, in case the latest one
is corrupted
This commit is contained in:
Howard Chu 2017-08-12 12:21:25 +01:00
parent 86226754a9
commit 9c6eb75c65
No known key found for this signature in database
GPG key ID: FD2A70B44AB11BA7
8 changed files with 68 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

8
external/db_drivers/liblmdb/lmdb.h vendored
View file

@ -311,6 +311,8 @@ typedef void (MDB_rel_func)(MDB_val *item, void *oldptr, void *newptr, void *rel
#define MDB_NORDAHEAD 0x800000
/** don't initialize malloc'd memory before writing to datafile */
#define MDB_NOMEMINIT 0x1000000
/** use the previous snapshot rather than the latest one */
#define MDB_PREVSNAPSHOT 0x2000000
/** @} */
/** @defgroup mdb_dbi_open Database Flags
@ -622,6 +624,12 @@ int mdb_env_create(MDB_env **env);
* caller is expected to overwrite all of the memory that was
* reserved in that case.
* This flag may be changed at any time using #mdb_env_set_flags().
* <li>#MDB_PREVSNAPSHOT
* Open the environment with the previous snapshot rather than the latest
* one. This loses the latest transaction, but may help work around some
* types of corruption. If opened with write access, this must be the
* only process using the environment. This flag is automatically reset
* after a write transaction is successfully committed.
* </ul>
* @param[in] mode The UNIX permissions to set on created files and semaphores.
* This parameter is ignored on Windows.