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lmdb: update mdb_chk for checkpoints, minor cosmetics.

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This is 9/9 for https://github.com/ReOpen/ReOpenLDAP/issues/1
and https://github.com/ReOpen/ReOpenLDAP/issues/2

Change-Id: I05f59313b4346c08bcd63d62e6c48a5f53c47852
This commit is contained in:
Leo Yuriev
2015-05-11 21:50:18 +03:00
parent 1581fecd08
commit 104312d15e
3 changed files with 82 additions and 15 deletions
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23
mdb.c
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@@ -9039,21 +9039,32 @@ mdb_env_stat(MDB_env *env, MDB_stat *arg)
int ESECT
mdb_env_info(MDB_env *env, MDB_envinfo *arg)
{
MDB_meta *meta;
MDB_meta *meta, *m1, *m2;
if (env == NULL || arg == NULL)
return EINVAL;
meta = mdb_meta_head_r(env);
arg->me_mapaddr = meta->mm_address;
m1 = METAPAGE_1(env);
m2 = METAPAGE_2(env);
arg->me_mapsize = env->me_mapsize;
arg->me_maxreaders = env->me_maxreaders;
arg->me_numreaders = env->me_txns->mti_numreaders;
arg->me_last_pgno = meta->mm_last_pg;
arg->me_last_txnid = meta->mm_txnid;
arg->me_tail_txnid = 0;
do {
meta = mdb_meta_head_r(env);
arg->me_meta1_txnid = m1->mm_txnid;
arg->me_meta1_sign = m1->mm_datasync_sign;
arg->me_meta2_txnid = m2->mm_txnid;
arg->me_meta2_sign = m2->mm_datasync_sign;
arg->me_last_pgno = meta->mm_last_pg;
arg->me_last_txnid = meta->mm_txnid;
} while (unlikely( meta->mm_txnid != env->me_txns->mti_txnid
|| arg->me_meta1_sign != m1->mm_datasync_sign
|| arg->me_meta2_sign != m2->mm_datasync_sign ));
arg->me_mapaddr = meta->mm_address;
arg->me_tail_txnid = 0;
MDB_reader *r = env->me_txns->mti_readers;
int i;
arg->me_tail_txnid = arg->me_last_txnid;