<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>function::atomic_long_read</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1"><link rel="start" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="up" href="ch24.html" title="Chapter 24. String and data retrieving functions Tapset"><link rel="prev" href="ch24.html" title="Chapter 24. String and data retrieving functions Tapset"><link rel="next" href="re423.html" title="function::atomic_read"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>function::atomic_long_read</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch24.html">Prev</a> </td><th width="60%" align="center">Chapter 24. String and data retrieving functions Tapset</th><td width="20%" align="right"> <a accesskey="n" href="re423.html">Next</a></td></tr></table><hr></div><div class="refentry" lang="en"><a name="API-atomic-long-read"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>function::atomic_long_read — Retrieves an atomic long variable from kernel memory </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="programlisting"> atomic_long_read:long(addr:long) </pre></div><div class="refsect1" lang="en"><a name="idp11249280"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>addr</code></em></span></dt><dd><p> pointer to atomic long variable </p></dd></dl></div></div><div class="refsect1" lang="en"><a name="idp11252496"></a><h2>Description</h2><p> Safely perform the read of an atomic long variable. This will be a NOP on kernels that do not have ATOMIC_LONG_INIT set on the kernel config. </p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch24.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch24.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re423.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 24. String and data retrieving functions Tapset </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>function::atomic_read</span></td></tr></table></div></body></html>