Committed to mdb.master

commit ff0bde6a95bb8ab2355324b65f451216d5ef2a0e Author: Leo Yuriev leo@yuriev.ru Date: 2014-10-18 02:00:37 +0400

 ITS#7971 for LMDB: clarification in  mdb_txn_renew0().

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c index 83a15c1..1e766af 100644 --- a/libraries/liblmdb/mdb.c +++ b/libraries/liblmdb/mdb.c @@ -2507,15 +2507,16 @@ mdb_txn_renew0(MDB_txn *txn) UNLOCK_MUTEX_R(env); return MDB_READERS_FULL; }

• ti->mti_readers[i].mr_pid = pid;
• ti->mti_readers[i].mr_tid = tid;

• r = &ti->mti_readers[i];
• r->mr_txnid = (txnid_t)-1;
• r->mr_tid = tid;
• r->mr_pid = pid; /* should be written last, see ITS#. */ if (i == nr) ti->mti_numreaders = ++nr; /* Save numreaders for un-mutexed mdb_env_close() */ env->me_numreaders = nr; UNLOCK_MUTEX_R(env);

• r = &ti->mti_readers[i]; new_notls = (env->me_flags & MDB_NOTLS); if (!new_notls && (rc=pthread_setspecific(env->me_txkey, r))) { r->mr_pid = 0;