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ITS#8704 add MDB_PREVSNAPSHOT flag to mdb_env_open

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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
8 changed files with 68 additions and 15 deletions
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6
external/db_drivers/liblmdb/mdb_stat.c vendored
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@@ -46,7 +46,7 @@ static void prstat(MDB_stat *ms)
static void usage(char *prog)
{
fprintf(stderr, "usage: %s [-V] [-n] [-e] [-r[r]] [-f[f[f]]] [-a|-s subdb] dbpath\n", prog);
fprintf(stderr, "usage: %s [-V] [-n] [-e] [-r[r]] [-f[f[f]]] [-v] [-a|-s subdb] dbpath\n", prog);
exit(EXIT_FAILURE);
}
@@ -73,6 +73,7 @@ int main(int argc, char *argv[])
* -f: print freelist info
* -r: print reader info
* -n: use NOSUBDIR flag on env_open
* -v: use previous snapshot
* -V: print version and exit
* (default) print stat of only the main DB
*/
@@ -96,6 +97,9 @@ int main(int argc, char *argv[])
case 'n':
envflags |= MDB_NOSUBDIR;
break;
case 'v':
envflags |= MDB_PREVSNAPSHOT;
break;
case 'r':
rdrinfo++;
break;