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<div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../../module-summary.html">org.apache.jena.tdb</a></div>
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.jena.tdb1.sys</a></div>
<h1 title="Class ProcessUtils" class="title">Class ProcessUtils</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">org.apache.jena.tdb1.sys.ProcessUtils</div>
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<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">ProcessUtils</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<section class="constructor-summary" id="constructor-summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
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<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">ProcessUtils</a>()</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
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<!-- ========== METHOD SUMMARY =========== -->
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<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static int</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getPid(int)" class="member-name-link">getPid</a><wbr>(int&nbsp;fallback)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Tries to get the PID of the current process caching it for future calls
since it won't change throughout the life of the process</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#isAlive(int)" class="member-name-link">isAlive</a><wbr>(int&nbsp;pid)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Determines whether a given PID is alive</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#negativePidsTreatedAsAlive()" class="member-name-link">negativePidsTreatedAsAlive</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">
<div class="block">Gets whether the platform we are running on will cause us to treat
negative (i.e.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
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</section>
</li>
</ul>
</section>
<section class="details">
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;()">
<h3>ProcessUtils</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">ProcessUtils</span>()</div>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getPid(int)">
<h3>getPid</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getPid</span><wbr><span class="parameters">(int&nbsp;fallback)</span></div>
<div class="block">Tries to get the PID of the current process caching it for future calls
since it won't change throughout the life of the process</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>fallback</code> - Fallback PID to return if unable to determine the PID i.e. an
error code to return</dd>
<dt>Returns:</dt>
<dd>PID of current process or provided <code>fallback</code> if unable to
determine PID</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isAlive(int)">
<h3>isAlive</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isAlive</span><wbr><span class="parameters">(int&nbsp;pid)</span></div>
<div class="block">Determines whether a given PID is alive</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>pid</code> - PID</dd>
<dt>Returns:</dt>
<dd>True if the given PID is alive or unknown, false if it is dead</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="negativePidsTreatedAsAlive()">
<h3>negativePidsTreatedAsAlive</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">negativePidsTreatedAsAlive</span>()</div>
<div class="block">Gets whether the platform we are running on will cause us to treat
negative (i.e. invalid) PIDs as alive because of the format in which the
command line process monitor application for the system returns errors
for invalid PIDs</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>True if a negative PID is treated as alive on this platform or we
cannot determine liveness for PIDs on this platform, false
otherwise</dd>
</dl>
</section>
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