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Tweak mdb_envinfo numreaders

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Return the actual shared reader count when it exists, not
just the current process env's reader count.
This commit is contained in:
Howard Chu 2013-07-28 17:02:51 -07:00
parent e8ba9dbd28
commit acf20f77f3
1 changed files with 6 additions and 1 deletions
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7
libraries/liblmdb/mdb.c
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@ -7682,7 +7682,12 @@ mdb_env_info(MDB_env *env, MDB_envinfo *arg)
arg->me_mapaddr = (env->me_flags & MDB_FIXEDMAP) ? env->me_map : 0;
arg->me_mapsize = env->me_mapsize;
arg->me_maxreaders = env->me_maxreaders;
arg->me_numreaders = env->me_numreaders;
/* me_numreaders may be zero if this process never used any readers. Use
* the shared numreader count if it exists.
*/
arg->me_numreaders = env->me_txns ? env->me_txns->mti_numreaders : env->me_numreaders;
arg->me_last_pgno = env->me_metas[toggle]->mm_last_pg;
arg->me_last_txnid = env->me_metas[toggle]->mm_txnid;
return MDB_SUCCESS;