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<h2 class="title" style="clear: both"><a id="txnset_priority"></a>DB_TXN->set_priority()</h2>
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<pre class="programlisting">#include <db.h>
int
DB_TXN->set_priority(DB_TXN *tid, u_int32_t priority); </pre>
<p>
The <code class="methodname">DB_TXN->set_priority()</code> method sets the
priority for the transaction. The deadlock detector will reject
lock requests from lower priority transactions before those from
higher priority transactions.
</p>
<p>
By default, all transactions are created with a priority of 100.
</p>
<p>
The <code class="methodname">DB_TXN->set_priority()</code> method may be
called at any time during the life of the transaction.
</p>
<p>
The <code class="methodname">DB_TXN->set_priority()</code> <span>
<span>
method returns a non-zero error value on failure and 0 on success.
</span>
</span>
</p>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp54657664"></a>Parameters</h3>
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<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idp54657016"></a>priority</h4>
</div>
</div>
</div>
<p>
The <span class="bold"><strong>priority</strong></span> parameter
must be a value between 0 and 2^32-1.
</p>
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<div class="sect2" lang="en" xml:lang="en">
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<h3 class="title"><a id="idp54649584"></a>Errors</h3>
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<p>
The <code class="methodname">DB_TXN->set_priority()</code> <span>
<span>
method may fail and return one of the following non-zero errors:
</span>
</span>
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<div class="sect3" lang="en" xml:lang="en">
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<h4 class="title"><a id="idp54662696"></a>EINVAL</h4>
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An invalid flag value or parameter was specified.
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<a class="link" href="env.html" title="Chapter 5. The DB_ENV Handle">DB_ENV</a>, <a class="link" href="txn.html" title="Chapter 12. The DB_TXN Handle">DB_TXN</a>
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<h3 class="title"><a id="idp54647224"></a>See Also</h3>
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<a class="xref" href="txn.html#txnlist" title="Transaction Subsystem and Related Methods">Transaction Subsystem and Related Methods</a>
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