# Berkeley DB Reference Guide: Release 3.2: DB_ENV->set_mutexlocks
Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++

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Berkeley DB Reference Guide:
  Upgrading Berkeley DB Applications

### Release 3.2: DB_ENV->set_mutexlocks

Previous Berkeley DB releases included the db_env_set_mutexlocks function, intended for debugging, that allows applications to always obtain requested mutual exclusion mutexes without regard for their availability. This function has been replaced with dbenv_set_mutexlocks, which provides the same functionality on a per-database environment basis. Applications using the old function should be updated to use the new one.

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