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<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>xmlmemory: interface for the memory allocator</title> <meta name="generator" content="Libxml2 devhelp stylesheet"> <link rel="start" href="index.html" title="libxml2 Reference Manual"> <link rel="up" href="general.html" title="API"> <link rel="stylesheet" href="style.css" type="text/css"> <link rel="chapter" href="general.html" title="API"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"> <td><a accesskey="p" href="libxml2-xmlexports.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td> <td><a accesskey="u" href="general.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td> <td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td> <td><a accesskey="n" href="libxml2-xmlmodule.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td> <th width="100%" align="center">libxml2 Reference Manual</th> </tr></table> <h2><span class="refentrytitle">xmlmemory</span></h2> <p>xmlmemory - interface for the memory allocator</p> <p>provides interfaces for the memory allocator, including debugging capabilities. </p> <p>Author(s): Daniel Veillard </p> <div class="refsynopsisdiv"> <h2>Synopsis</h2> <pre class="synopsis">#define <a href="#DEBUG_MEMORY">DEBUG_MEMORY</a>; #define <a href="#xmlMalloc">xmlMalloc</a>; #define <a href="#xmlMallocAtomic">xmlMallocAtomic</a>; #define <a href="#xmlMemStrdup">xmlMemStrdup</a>; #define <a href="#xmlRealloc">xmlRealloc</a>; void <a href="#xmlCleanupMemory">xmlCleanupMemory</a> (void); typedef void <a href="#xmlFreeFunc">xmlFreeFunc</a> (void * mem); int <a href="#xmlGcMemGet">xmlGcMemGet</a> (<a href="libxml2-xmlmemory.html#xmlFreeFunc">xmlFreeFunc</a> * freeFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> * mallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> * mallocAtomicFunc, <br> <a href="libxml2-xmlmemory.html#xmlReallocFunc">xmlReallocFunc</a> * reallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlStrdupFunc">xmlStrdupFunc</a> * strdupFunc); int <a href="#xmlGcMemSetup">xmlGcMemSetup</a> (<a href="libxml2-xmlmemory.html#xmlFreeFunc">xmlFreeFunc</a> freeFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> mallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> mallocAtomicFunc, <br> <a href="libxml2-xmlmemory.html#xmlReallocFunc">xmlReallocFunc</a> reallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlStrdupFunc">xmlStrdupFunc</a> strdupFunc); int <a href="#xmlInitMemory">xmlInitMemory</a> (void); void * <a href="#xmlMallocAtomicLoc">xmlMallocAtomicLoc</a> (size_t size, <br> const char * file, <br> int line); typedef void * <a href="#xmlMallocFunc">xmlMallocFunc</a> (size_t size); void * <a href="#xmlMallocLoc">xmlMallocLoc</a> (size_t size, <br> const char * file, <br> int line); int <a href="#xmlMemBlocks">xmlMemBlocks</a> (void); void <a href="#xmlMemDisplay">xmlMemDisplay</a> (FILE * fp); void <a href="#xmlMemDisplayLast">xmlMemDisplayLast</a> (FILE * fp, <br> long nbBytes); void <a href="#xmlMemFree">xmlMemFree</a> (void * ptr); int <a href="#xmlMemGet">xmlMemGet</a> (<a href="libxml2-xmlmemory.html#xmlFreeFunc">xmlFreeFunc</a> * freeFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> * mallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlReallocFunc">xmlReallocFunc</a> * reallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlStrdupFunc">xmlStrdupFunc</a> * strdupFunc); void * <a href="#xmlMemMalloc">xmlMemMalloc</a> (size_t size); void * <a href="#xmlMemRealloc">xmlMemRealloc</a> (void * ptr, <br> size_t size); int <a href="#xmlMemSetup">xmlMemSetup</a> (<a href="libxml2-xmlmemory.html#xmlFreeFunc">xmlFreeFunc</a> freeFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> mallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlReallocFunc">xmlReallocFunc</a> reallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlStrdupFunc">xmlStrdupFunc</a> strdupFunc); void <a href="#xmlMemShow">xmlMemShow</a> (FILE * fp, <br> int nr); char * <a href="#xmlMemStrdupLoc">xmlMemStrdupLoc</a> (const char * str, <br> const char * file, <br> int line); int <a href="#xmlMemUsed">xmlMemUsed</a> (void); void <a href="#xmlMemoryDump">xmlMemoryDump</a> (void); char * <a href="#xmlMemoryStrdup">xmlMemoryStrdup</a> (const char * str); typedef void * <a href="#xmlReallocFunc">xmlReallocFunc</a> (void * mem, <br> size_t size); void * <a href="#xmlReallocLoc">xmlReallocLoc</a> (void * ptr, <br> size_t size, <br> const char * file, <br> int line); typedef char * <a href="#xmlStrdupFunc">xmlStrdupFunc</a> (const char * str); </pre> </div> <div class="refsect1" lang="en"><h2>Description</h2></div> <div class="refsect1" lang="en"> <h2>Details</h2> <div class="refsect2" lang="en"> <div class="refsect2" lang="en"> <h3> <a name="DEBUG_MEMORY">Macro </a>DEBUG_MEMORY</h3> <pre class="programlisting">#define <a href="#DEBUG_MEMORY">DEBUG_MEMORY</a>; </pre> <p><a href="libxml2-xmlmemory.html#DEBUG_MEMORY">DEBUG_MEMORY</a> replaces the allocator with a collect and debug shell to the libc allocator. <a href="libxml2-xmlmemory.html#DEBUG_MEMORY">DEBUG_MEMORY</a> should only be activated when debugging libxml i.e. if libxml has been configured with --with-debug-mem too. #define DEBUG_MEMORY_FREED #define <a href="libxml2-xmlversion.html#DEBUG_MEMORY_LOCATION">DEBUG_MEMORY_LOCATION</a></p> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlFreeFunc"></a>Function type xmlFreeFunc</h3> <pre class="programlisting">void xmlFreeFunc (void * mem)<br> </pre> <p>Signature for a free() implementation.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody><tr> <td><span class="term"><i><tt>mem</tt></i>:</span></td> <td>an already allocated block of memory</td> </tr></tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMallocFunc"></a>Function type xmlMallocFunc</h3> <pre class="programlisting">void * xmlMallocFunc (size_t size)<br> </pre> <p>Signature for a malloc() implementation.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>size</tt></i>:</span></td> <td>the size requested in bytes</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the newly allocated block or NULL in case of error.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlReallocFunc"></a>Function type xmlReallocFunc</h3> <pre class="programlisting">void * xmlReallocFunc (void * mem, <br> size_t size)<br> </pre> <p>Signature for a realloc() implementation.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>mem</tt></i>:</span></td> <td>an already allocated block of memory</td> </tr> <tr> <td><span class="term"><i><tt>size</tt></i>:</span></td> <td>the new size requested in bytes</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the newly reallocated block or NULL in case of error.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlStrdupFunc"></a>Function type xmlStrdupFunc</h3> <pre class="programlisting">char * xmlStrdupFunc (const char * str)<br> </pre> <p>Signature for an strdup() implementation.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>str</tt></i>:</span></td> <td>a zero terminated string</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>the copy of the string or NULL in case of error.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlCleanupMemory"></a>xmlCleanupMemory ()</h3> <pre class="programlisting">void xmlCleanupMemory (void)<br> </pre> <p>DEPRECATED: This function will be made private. Call <a href="libxml2-parser.html#xmlCleanupParser">xmlCleanupParser</a> to free global state but see the warnings there. <a href="libxml2-parser.html#xmlCleanupParser">xmlCleanupParser</a> should be only called once at program exit. In most cases, you don't have call cleanup functions at all. Free up all the memory allocated by the library for its own use. This should not be called by user level code.</p> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlGcMemGet"></a>xmlGcMemGet ()</h3> <pre class="programlisting">int xmlGcMemGet (<a href="libxml2-xmlmemory.html#xmlFreeFunc">xmlFreeFunc</a> * freeFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> * mallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> * mallocAtomicFunc, <br> <a href="libxml2-xmlmemory.html#xmlReallocFunc">xmlReallocFunc</a> * reallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlStrdupFunc">xmlStrdupFunc</a> * strdupFunc)<br> </pre> <p>Provides the memory access functions set currently in use The mallocAtomicFunc is specialized for atomic block allocations (i.e. of areas useful for garbage collected memory allocators</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>freeFunc</tt></i>:</span></td> <td>place to save the free() function in use</td> </tr> <tr> <td><span class="term"><i><tt>mallocFunc</tt></i>:</span></td> <td>place to save the malloc() function in use</td> </tr> <tr> <td><span class="term"><i><tt>mallocAtomicFunc</tt></i>:</span></td> <td>place to save the atomic malloc() function in use</td> </tr> <tr> <td><span class="term"><i><tt>reallocFunc</tt></i>:</span></td> <td>place to save the realloc() function in use</td> </tr> <tr> <td><span class="term"><i><tt>strdupFunc</tt></i>:</span></td> <td>place to save the strdup() function in use</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>0 on success</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlGcMemSetup"></a>xmlGcMemSetup ()</h3> <pre class="programlisting">int xmlGcMemSetup (<a href="libxml2-xmlmemory.html#xmlFreeFunc">xmlFreeFunc</a> freeFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> mallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> mallocAtomicFunc, <br> <a href="libxml2-xmlmemory.html#xmlReallocFunc">xmlReallocFunc</a> reallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlStrdupFunc">xmlStrdupFunc</a> strdupFunc)<br> </pre> <p>Override the default memory access functions with a new set This has to be called before any other libxml routines ! The mallocAtomicFunc is specialized for atomic block allocations (i.e. of areas useful for garbage collected memory allocators Should this be blocked if there was already some allocations done ?</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>freeFunc</tt></i>:</span></td> <td>the free() function to use</td> </tr> <tr> <td><span class="term"><i><tt>mallocFunc</tt></i>:</span></td> <td>the malloc() function to use</td> </tr> <tr> <td><span class="term"><i><tt>mallocAtomicFunc</tt></i>:</span></td> <td>the malloc() function to use for atomic allocations</td> </tr> <tr> <td><span class="term"><i><tt>reallocFunc</tt></i>:</span></td> <td>the realloc() function to use</td> </tr> <tr> <td><span class="term"><i><tt>strdupFunc</tt></i>:</span></td> <td>the strdup() function to use</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>0 on success</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlInitMemory"></a>xmlInitMemory ()</h3> <pre class="programlisting">int xmlInitMemory (void)<br> </pre> <p>DEPRECATED: This function will be made private. Call <a href="libxml2-parser.html#xmlInitParser">xmlInitParser</a> to initialize the library. Initialize the memory layer.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody><tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>0 on success</td> </tr></tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMallocAtomicLoc"></a>xmlMallocAtomicLoc ()</h3> <pre class="programlisting">void * xmlMallocAtomicLoc (size_t size, <br> const char * file, <br> int line)<br> </pre> <p>a malloc() equivalent, with logging of the allocation info.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>size</tt></i>:</span></td> <td>an unsigned int specifying the size in byte to allocate.</td> </tr> <tr> <td><span class="term"><i><tt>file</tt></i>:</span></td> <td>the file name or NULL</td> </tr> <tr> <td><span class="term"><i><tt>line</tt></i>:</span></td> <td>the line number</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the allocated area or NULL in case of lack of memory.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMallocLoc"></a>xmlMallocLoc ()</h3> <pre class="programlisting">void * xmlMallocLoc (size_t size, <br> const char * file, <br> int line)<br> </pre> <p>a malloc() equivalent, with logging of the allocation info.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>size</tt></i>:</span></td> <td>an int specifying the size in byte to allocate.</td> </tr> <tr> <td><span class="term"><i><tt>file</tt></i>:</span></td> <td>the file name or NULL</td> </tr> <tr> <td><span class="term"><i><tt>line</tt></i>:</span></td> <td>the line number</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the allocated area or NULL in case of lack of memory.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemBlocks"></a>xmlMemBlocks ()</h3> <pre class="programlisting">int xmlMemBlocks (void)<br> </pre> <p>Provides the number of memory areas currently allocated</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody><tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>an int representing the number of blocks</td> </tr></tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemDisplay"></a>xmlMemDisplay ()</h3> <pre class="programlisting">void xmlMemDisplay (FILE * fp)<br> </pre> <p>show in-extenso the memory blocks allocated</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody><tr> <td><span class="term"><i><tt>fp</tt></i>:</span></td> <td>a FILE descriptor used as the output file, if NULL, the result is written to the file .memorylist</td> </tr></tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemDisplayLast"></a>xmlMemDisplayLast ()</h3> <pre class="programlisting">void xmlMemDisplayLast (FILE * fp, <br> long nbBytes)<br> </pre> <p>the last nbBytes of memory allocated and not freed, useful for dumping the memory left allocated between two places at runtime.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>fp</tt></i>:</span></td> <td>a FILE descriptor used as the output file, if NULL, the result is written to the file .memorylist</td> </tr> <tr> <td><span class="term"><i><tt>nbBytes</tt></i>:</span></td> <td>the amount of memory to dump</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemFree"></a>xmlMemFree ()</h3> <pre class="programlisting">void xmlMemFree (void * ptr)<br> </pre> <p>a free() equivalent, with error checking.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody><tr> <td><span class="term"><i><tt>ptr</tt></i>:</span></td> <td>the memory block pointer</td> </tr></tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemGet"></a>xmlMemGet ()</h3> <pre class="programlisting">int xmlMemGet (<a href="libxml2-xmlmemory.html#xmlFreeFunc">xmlFreeFunc</a> * freeFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> * mallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlReallocFunc">xmlReallocFunc</a> * reallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlStrdupFunc">xmlStrdupFunc</a> * strdupFunc)<br> </pre> <p>Provides the memory access functions set currently in use</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>freeFunc</tt></i>:</span></td> <td>place to save the free() function in use</td> </tr> <tr> <td><span class="term"><i><tt>mallocFunc</tt></i>:</span></td> <td>place to save the malloc() function in use</td> </tr> <tr> <td><span class="term"><i><tt>reallocFunc</tt></i>:</span></td> <td>place to save the realloc() function in use</td> </tr> <tr> <td><span class="term"><i><tt>strdupFunc</tt></i>:</span></td> <td>place to save the strdup() function in use</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>0 on success</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemMalloc"></a>xmlMemMalloc ()</h3> <pre class="programlisting">void * xmlMemMalloc (size_t size)<br> </pre> <p>a malloc() equivalent, with logging of the allocation info.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>size</tt></i>:</span></td> <td>an int specifying the size in byte to allocate.</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the allocated area or NULL in case of lack of memory.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemRealloc"></a>xmlMemRealloc ()</h3> <pre class="programlisting">void * xmlMemRealloc (void * ptr, <br> size_t size)<br> </pre> <p>a realloc() equivalent, with logging of the allocation info.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>ptr</tt></i>:</span></td> <td>the initial memory block pointer</td> </tr> <tr> <td><span class="term"><i><tt>size</tt></i>:</span></td> <td>an int specifying the size in byte to allocate.</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the allocated area or NULL in case of lack of memory.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemSetup"></a>xmlMemSetup ()</h3> <pre class="programlisting">int xmlMemSetup (<a href="libxml2-xmlmemory.html#xmlFreeFunc">xmlFreeFunc</a> freeFunc, <br> <a href="libxml2-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> mallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlReallocFunc">xmlReallocFunc</a> reallocFunc, <br> <a href="libxml2-xmlmemory.html#xmlStrdupFunc">xmlStrdupFunc</a> strdupFunc)<br> </pre> <p>Override the default memory access functions with a new set This has to be called before any other libxml routines ! Should this be blocked if there was already some allocations done ?</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>freeFunc</tt></i>:</span></td> <td>the free() function to use</td> </tr> <tr> <td><span class="term"><i><tt>mallocFunc</tt></i>:</span></td> <td>the malloc() function to use</td> </tr> <tr> <td><span class="term"><i><tt>reallocFunc</tt></i>:</span></td> <td>the realloc() function to use</td> </tr> <tr> <td><span class="term"><i><tt>strdupFunc</tt></i>:</span></td> <td>the strdup() function to use</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>0 on success</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemShow"></a>xmlMemShow ()</h3> <pre class="programlisting">void xmlMemShow (FILE * fp, <br> int nr)<br> </pre> <p>show a show display of the memory allocated, and dump the @nr last allocated areas which were not freed</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>fp</tt></i>:</span></td> <td>a FILE descriptor used as the output file</td> </tr> <tr> <td><span class="term"><i><tt>nr</tt></i>:</span></td> <td>number of entries to dump</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemStrdupLoc"></a>xmlMemStrdupLoc ()</h3> <pre class="programlisting">char * xmlMemStrdupLoc (const char * str, <br> const char * file, <br> int line)<br> </pre> <p>a strdup() equivalent, with logging of the allocation info.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>str</tt></i>:</span></td> <td>the initial string pointer</td> </tr> <tr> <td><span class="term"><i><tt>file</tt></i>:</span></td> <td>the file name or NULL</td> </tr> <tr> <td><span class="term"><i><tt>line</tt></i>:</span></td> <td>the line number</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the new string or NULL if allocation error occurred.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemUsed"></a>xmlMemUsed ()</h3> <pre class="programlisting">int xmlMemUsed (void)<br> </pre> <p>Provides the amount of memory currently allocated</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody><tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>an int representing the amount of memory allocated.</td> </tr></tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemoryDump"></a>xmlMemoryDump ()</h3> <pre class="programlisting">void xmlMemoryDump (void)<br> </pre> <p>Dump in-extenso the memory blocks allocated to the file .memorylist</p> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlMemoryStrdup"></a>xmlMemoryStrdup ()</h3> <pre class="programlisting">char * xmlMemoryStrdup (const char * str)<br> </pre> <p>a strdup() equivalent, with logging of the allocation info.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>str</tt></i>:</span></td> <td>the initial string pointer</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the new string or NULL if allocation error occurred.</td> </tr> </tbody> </table></div> </div> <hr> <div class="refsect2" lang="en"> <h3> <a name="xmlReallocLoc"></a>xmlReallocLoc ()</h3> <pre class="programlisting">void * xmlReallocLoc (void * ptr, <br> size_t size, <br> const char * file, <br> int line)<br> </pre> <p>a realloc() equivalent, with logging of the allocation info.</p> <div class="variablelist"><table border="0"> <col align="left"> <tbody> <tr> <td><span class="term"><i><tt>ptr</tt></i>:</span></td> <td>the initial memory block pointer</td> </tr> <tr> <td><span class="term"><i><tt>size</tt></i>:</span></td> <td>an int specifying the size in byte to allocate.</td> </tr> <tr> <td><span class="term"><i><tt>file</tt></i>:</span></td> <td>the file name or NULL</td> </tr> <tr> <td><span class="term"><i><tt>line</tt></i>:</span></td> <td>the line number</td> </tr> <tr> <td><span class="term"><i><tt>Returns</tt></i>:</span></td> <td>a pointer to the allocated area or NULL in case of lack of memory.</td> </tr> </tbody> </table></div> </div> <hr> </div> </div> </body> </html>