int lock_put(DB_ENV *env, DB_LOCK *lock);
The lock_put function releases lock from the lock table.
The lock_put function returns a non-zero error value on failure and 0 on success.
The lock_put function may fail and return a non-zero error for the following conditions:
The lock_put function may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions. If a catastrophic error has occurred, the lock_put function may fail and return DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail in the same way.
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