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<div class="sub-title"><span class="module-label-in-type">Module</span>&nbsp;<a href="../../../../../module-summary.html">openj9.dtfj</a></div>
<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">com.ibm.dtfj.image.j9</a></div>
<h1 title="Class ImageThread" class="title">Class ImageThread</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">java.lang.Object</a>
<div class="inheritance">com.ibm.dtfj.image.j9.ImageThread</div>
</div>
<section class="description">
<dl class="notes">
<dt>All Implemented Interfaces:</dt>
<dd><code><a href="../ImageThread.html" title="interface in com.ibm.dtfj.image">ImageThread</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">ImageThread</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a>
implements <a href="../ImageThread.html" title="interface in com.ibm.dtfj.image">ImageThread</a></span></div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<li>
<section class="constructor-summary" id="constructor.summary">
<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
<div class="summary-table two-column-summary">
<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><span class="member-name-link"><a href="#%3Cinit%3E(java.lang.String,java.util.Iterator,java.util.Iterator,java.util.Iterator,java.util.Properties,int)">ImageThread</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>&nbsp;threadID,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a>&nbsp;registers,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a>&nbsp;stackSections,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a>&nbsp;stackFrames,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Properties.html" title="class or interface in java.util" class="external-link" target="_blank">Properties</a>&nbsp;properties,
int&nbsp;signalNumber)</code></div>
<div class="col-last even-row-color">&nbsp;</div>
</div>
</section>
</li>
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method.summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
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<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getID()">getID</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Fetch a unique identifier for the thread.</div>
</div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Properties.html" title="class or interface in java.util" class="external-link" target="_blank">Properties</a></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getProperties()">getProperties</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Get the OS-specific properties for this thread.</div>
</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getRegisters()">getRegisters</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Get the register contents.</div>
</div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>int</code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getSignal()">getSignal</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Called by the process if this is the current thread to see what signal it is stopped on</div>
</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getStackFrames()">getStackFrames</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Get the set of stack frames on this thread.</div>
</div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getStackSections()">getStackSections</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Get the set of image sections which make up the stack.</div>
</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.java.lang.Object">Methods declared in class&nbsp;java.lang.<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link" target="_blank">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link" target="_blank">clone</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link" target="_blank">equals</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link" target="_blank">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link" target="_blank">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link" target="_blank">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link" target="_blank">notify</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link" target="_blank">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link" target="_blank">toString</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link" target="_blank">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ========= 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;(java.lang.String,java.util.Iterator,java.util.Iterator,java.util.Iterator,java.util.Properties,int)">
<h3>ImageThread</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">ImageThread</span>&#8203;<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a>&nbsp;threadID,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a>&nbsp;registers,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a>&nbsp;stackSections,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a>&nbsp;stackFrames,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Properties.html" title="class or interface in java.util" class="external-link" target="_blank">Properties</a>&nbsp;properties,
int&nbsp;signalNumber)</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="getID()">
<h3>getID</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link" target="_blank">String</a></span>&nbsp;<span class="element-name">getID</span>()
throws <span class="exceptions"><a href="../CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../ImageThread.html#getID()">ImageThread</a></code></span></div>
<div class="block">Fetch a unique identifier for the thread.
In many operating systems, threads have more than one identifier (e.g.
a thread id, a handle, a pointer to VM structures associated with the thread).
In this case, one of these identifiers will be chosen as the canonical
one. The other identifiers would be returned by getProperties()</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../ImageThread.html#getID()">getID</a></code>&nbsp;in interface&nbsp;<code><a href="../ImageThread.html" title="interface in com.ibm.dtfj.image">ImageThread</a></code></dd>
<dt>Returns:</dt>
<dd>a process-wide identifier for the thread (e.g. a tid number)</dd>
<dt>Throws:</dt>
<dd><code><a href="../CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getStackFrames()">
<h3>getStackFrames</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></span>&nbsp;<span class="element-name">getStackFrames</span>()
throws <span class="exceptions"><a href="../DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></span></div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../ImageThread.html#getStackFrames()">ImageThread</a></code></span></div>
<div class="block">Get the set of stack frames on this thread.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../ImageThread.html#getStackFrames()">getStackFrames</a></code>&nbsp;in interface&nbsp;<code><a href="../ImageThread.html" title="interface in com.ibm.dtfj.image">ImageThread</a></code></dd>
<dt>Returns:</dt>
<dd>an iterator to walk the native stack frames in order from
top-of-stack (that is, the most recent frame) to bottom-of-stack. Throws
DataUnavailable if native stack frames are not available on this platform.</dd>
<dt>Throws:</dt>
<dd><code><a href="../DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code> - If native stack frames are not available on this platform</dd>
<dt>See Also:</dt>
<dd><a href="../ImageStackFrame.html" title="interface in com.ibm.dtfj.image"><code>ImageStackFrame</code></a>,
<a href="../CorruptData.html" title="interface in com.ibm.dtfj.image"><code>CorruptData</code></a></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getStackSections()">
<h3>getStackSections</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></span>&nbsp;<span class="element-name">getStackSections</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../ImageThread.html#getStackSections()">ImageThread</a></code></span></div>
<div class="block">Get the set of image sections which make up the stack.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../ImageThread.html#getStackSections()">getStackSections</a></code>&nbsp;in interface&nbsp;<code><a href="../ImageThread.html" title="interface in com.ibm.dtfj.image">ImageThread</a></code></dd>
<dt>Returns:</dt>
<dd>a collection of ImageSections which make up the stack. On
most platforms this consists of a single entry, but on some platforms
the thread's stack may consist of non-contiguous sections</dd>
<dt>See Also:</dt>
<dd><a href="../ImageSection.html" title="interface in com.ibm.dtfj.image"><code>ImageSection</code></a>,
<a href="../CorruptData.html" title="interface in com.ibm.dtfj.image"><code>CorruptData</code></a></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getRegisters()">
<h3>getRegisters</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link" target="_blank">Iterator</a></span>&nbsp;<span class="element-name">getRegisters</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../ImageThread.html#getRegisters()">ImageThread</a></code></span></div>
<div class="block">Get the register contents.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../ImageThread.html#getRegisters()">getRegisters</a></code>&nbsp;in interface&nbsp;<code><a href="../ImageThread.html" title="interface in com.ibm.dtfj.image">ImageThread</a></code></dd>
<dt>Returns:</dt>
<dd>an iterator to iterate over the state of the CPU registers
when the image was created. The collection may be empty if the register
state is not available for this thread.
If the CPU supports partial registers (e.g. AH, AL, AX, EAX, RAX on
AMD64), only the largest version of the register will be included</dd>
<dt>See Also:</dt>
<dd><a href="../ImageRegister.html" title="interface in com.ibm.dtfj.image"><code>ImageRegister</code></a></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getProperties()">
<h3>getProperties</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Properties.html" title="class or interface in java.util" class="external-link" target="_blank">Properties</a></span>&nbsp;<span class="element-name">getProperties</span>()</div>
<div class="block"><span class="descfrm-type-label">Description copied from interface:&nbsp;<code><a href="../ImageThread.html#getProperties()">ImageThread</a></code></span></div>
<div class="block">Get the OS-specific properties for this thread.</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="../ImageThread.html#getProperties()">getProperties</a></code>&nbsp;in interface&nbsp;<code><a href="../ImageThread.html" title="interface in com.ibm.dtfj.image">ImageThread</a></code></dd>
<dt>Returns:</dt>
<dd>a table of OS-specific properties for this thread.
Values which are commonly available include
<ul>
<li>"priority" -- the priority of the thread</li>
<li>"policy" -- the scheduling policy of the thread</li>
</ul></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getSignal()">
<h3>getSignal</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getSignal</span>()</div>
<div class="block">Called by the process if this is the current thread to see what signal it is stopped on</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>The signal number that was pending for this thread</dd>
</dl>
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