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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<div class="sect1" lang="en" xml:lang="en">
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<div>
<div>
<h2 class="title" style="clear: both"><a id="envset_lk_priority"></a>DB_ENV->set_lk_priority()</h2>
</div>
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</div>
<pre class="programlisting">#include <db.h>
int
DB_ENV->set_lk_priority(DB_ENV *dbenv,
u_int32_t lockerid, u_int32_t priority); </pre>
<p>
Set the priority of the given locker. This value is used when
resolving deadlocks, the deadlock resolution algorithm will reject
a lock request from a locker with a lower priority before a request
from a locker with a higher priority.
</p>
<p>
By default, all lockers are created with a priority of 100.
</p>
<p>
The <code class="methodname">DB_ENV->set_lk_priority()</code> method may be
called at any time during the life of the application.
</p>
<p>
The <code class="methodname">DB_ENV->set_lk_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="idp52561496"></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="idp52573400"></a>lockerid</h4>
</div>
</div>
</div>
<p>
The <span class="bold"><strong>lockerid</strong></span> parameter
represents a locker returned by
<code class="methodname">DB_ENV->lock_id()</code>.
</p>
</div>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idp52569008"></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>
</div>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp52557296"></a>Errors</h3>
</div>
</div>
</div>
<p>
The <code class="methodname">DB_ENV->set_lk_priority()</code> <span>
<span>
method may fail and return one of the following non-zero errors:
</span>
</span>
</p>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idp52573464"></a>EINVAL</h4>
</div>
</div>
</div>
<p>
An invalid flag value or parameter was specified.
</p>
</div>
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<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
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<h3 class="title"><a id="idp52579064"></a>Class</h3>
</div>
</div>
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<p>
<a class="link" href="env.html" title="Chapter 5. The DB_ENV Handle">DB_ENV</a>,
<a class="link" href="lock.html" title="Chapter 6. The DB_LOCK Handle">DB_LOCK</a>
</p>
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<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
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<h3 class="title"><a id="idp52580280"></a>See Also</h3>
</div>
</div>
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<a class="xref" href="lock.html#locklist" title="Locking Subsystem and Related Methods">Locking Subsystem and Related Methods</a>
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