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<title>Berkeley DB: DB_ENV->lock_id_free</title>
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<h1>DB_ENV->lock_id_free</h1>
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DB_ENV->lock_id_free(DB_ENV *env, u_int32_t id);
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<p>The DB_ENV->lock_id_free method frees a locker ID allocated by the
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<a href="../api_c/lock_id.html">DB_ENV->lock_id</a> method.
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<p>The DB_ENV->lock_id_free method returns a non-zero error value on failure and 0 on success.
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<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
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<p>The locker ID is invalid or locks are still held by this locker ID.
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<p>The DB_ENV->lock_id_free method may fail and return a non-zero error for errors specified for other Berkeley DB and C library or system functions.
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If a catastrophic error has occurred, the DB_ENV->lock_id_free method may fail and
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return <a href="../ref/program/errorret.html#DB_RUNRECOVERY">DB_RUNRECOVERY</a>,
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in which case all subsequent Berkeley DB calls will fail in the same way.
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<a href="../api_c/env_class.html">DB_ENV</a>, <a href="../api_c/lock_class.html">DB_LOCK</a>
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<a href="../api_c/lock_list.html">Locking Subsystem and Related Methods</a>
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