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<h1>xercesc::MemoryManager Class Reference</h1>Configurable memory manager.
<a href="#_details">More...</a>
<p>
<code>#include &lt;<a class="el" href="MemoryManager_8hpp-source.html">MemoryManager.hpp</a>&gt;</code>
<p>
Inheritance diagram for xercesc::MemoryManager:<p><center><img src="classxercesc_1_1MemoryManager__inherit__graph.png" border="0" usemap="#xercesc_1_1MemoryManager__inherit__map" alt="Inheritance graph"></center>
<map name="xercesc_1_1MemoryManager__inherit__map">
<area href="classXPath2MemoryManager.html" shape="rect" coords="9,81,175,105" alt="">
</map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classxercesc_1_1MemoryManager-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="classxercesc_1_1MemoryManager.html">MemoryManager</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classxercesc_1_1MemoryManager.html#a0">getExceptionMemoryManager</a> ()=0</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">This method is called to obtain the memory manager that should be used to allocate memory used in exceptions. <a href="#a0"></a><br></td></tr>
<tr><td colspan="2"><div class="groupHeader">Destructor</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classxercesc_1_1MemoryManager.html#z21_0">~MemoryManager</a> ()</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Default destructor. <a href="#z21_0"></a><br></td></tr>
<tr><td colspan="2"><div class="groupHeader">The pure virtual methods in this interface.</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classxercesc_1_1MemoryManager.html#z23_0">allocate</a> (XMLSize_t size)=0</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">This method allocates requested memory. <a href="#z23_0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classxercesc_1_1MemoryManager.html#z23_1">deallocate</a> (void *p)=0</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">This method deallocates memory. <a href="#z23_1"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td colspan="2"><div class="groupHeader">Constructor</div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classxercesc_1_1MemoryManager.html#z25_0">MemoryManager</a> ()</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Protected default constructor. <a href="#z25_0"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Configurable memory manager.
<p>
This interface allows outside applications to plug in their own memory manager to be used by Xerces for memory allocation/deallocation.
<p>
<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" name="z21_0" doxytag="xercesc::MemoryManager::~MemoryManager"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top">virtual xercesc::MemoryManager::~<a class="el" href="classxercesc_1_1MemoryManager.html">MemoryManager</a> </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap><code> [inline, virtual]</code></td>
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</td>
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<td>
&nbsp;
</td>
<td>
<p>
Default destructor.
<p>
</td>
</tr>
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<a class="anchor" name="z25_0" doxytag="xercesc::MemoryManager::MemoryManager"></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top">xercesc::MemoryManager::MemoryManager </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap><code> [inline, protected]</code></td>
</tr>
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</td>
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<td>
&nbsp;
</td>
<td>
<p>
Protected default constructor.
<p>
</td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="z23_0" doxytag="xercesc::MemoryManager::allocate"></a><p>
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<td class="md" nowrap valign="top">virtual void* xercesc::MemoryManager::allocate </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">XMLSize_t&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>size</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap><code> [pure virtual]</code></td>
</tr>
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</td>
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<td>
&nbsp;
</td>
<td>
<p>
This method allocates requested memory.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>size</em>&nbsp;</td><td>The requested memory size</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd>A pointer to the allocated memory </dd></dl>
</td>
</tr>
</table>
<a class="anchor" name="z23_1" doxytag="xercesc::MemoryManager::deallocate"></a><p>
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<td class="md" nowrap valign="top">virtual void xercesc::MemoryManager::deallocate </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void *&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>p</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap><code> [pure virtual]</code></td>
</tr>
</table>
</td>
</tr>
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<table cellspacing="5" cellpadding="0" border="0">
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<td>
&nbsp;
</td>
<td>
<p>
This method deallocates memory.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>p</em>&nbsp;</td><td>The pointer to the allocated memory to be deleted </td></tr>
</table>
</dl>
<p>
Implemented in <a class="el" href="classXPath2MemoryManager.html#a6">XPath2MemoryManager</a>. </td>
</tr>
</table>
<a class="anchor" name="a0" doxytag="xercesc::MemoryManager::getExceptionMemoryManager"></a><p>
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<td class="mdRow">
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<td class="md" nowrap valign="top">virtual <a class="el" href="classxercesc_1_1MemoryManager.html">MemoryManager</a>* xercesc::MemoryManager::getExceptionMemoryManager </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap><code> [pure virtual]</code></td>
</tr>
</table>
</td>
</tr>
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<table cellspacing="5" cellpadding="0" border="0">
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&nbsp;
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<p>
This method is called to obtain the memory manager that should be used to allocate memory used in exceptions.
<p>
If the same memory manager can be used, simply return 'this' from this function. Note, however, that if there is a possibility that an exception thrown can outlive the memory manager (for example, because the memory manager object is allocated on the stack or is managed by a stack-bound object), it is recommended that you return <a class="el" href="classxercesc_1_1XMLPlatformUtils.html#z27_4">XMLPlatformUtils::fgMemoryManager</a>.<p>
<dl compact><dt><b>Returns:</b></dt><dd>A pointer to the memory manager </dd></dl>
</td>
</tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="MemoryManager_8hpp-source.html">MemoryManager.hpp</a></ul>
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