1<?xml version="1.0" encoding="UTF-8"?> 2<html> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> 5 <title>xmlmemory: interface for the memory allocator</title> 6 <meta name="generator" content="Libxml2 devhelp stylesheet"/> 7 <link rel="start" href="index.html" title="libxml2 Reference Manual"/> 8 <link rel="up" href="general.html" title="API"/> 9 <link rel="stylesheet" href="style.css" type="text/css"/> 10 <link rel="chapter" href="general.html" title="API"/> 11 </head> 12 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13 <table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"> 14 <tr valign="middle"> 15 <td> 16 <a accesskey="p" href="libxml2-xmlexports.html"> 17 <img src="left.png" width="24" height="24" border="0" alt="Prev"/> 18 </a> 19 </td> 20 <td> 21 <a accesskey="u" href="general.html"> 22 <img src="up.png" width="24" height="24" border="0" alt="Up"/> 23 </a> 24 </td> 25 <td> 26 <a accesskey="h" href="index.html"> 27 <img src="home.png" width="24" height="24" border="0" alt="Home"/> 28 </a> 29 </td> 30 <td> 31 <a accesskey="n" href="libxml2-xmlmodule.html"> 32 <img src="right.png" width="24" height="24" border="0" alt="Next"/> 33 </a> 34 </td> 35 <th width="100%" align="center">libxml2 Reference Manual</th> 36 </tr> 37 </table> 38 <h2> 39 <span class="refentrytitle">xmlmemory</span> 40 </h2> 41 <p>xmlmemory - interface for the memory allocator</p> 42 <p>provides interfaces for the memory allocator, including debugging capabilities. </p> 43 <p>Author(s): Daniel Veillard </p> 44 <div class="refsynopsisdiv"> 45 <h2>Synopsis</h2> 46 <pre class="synopsis">#define <a href="#xmlRealloc">xmlRealloc</a>; 47#define <a href="#xmlMalloc">xmlMalloc</a>; 48#define <a href="#xmlMallocAtomic">xmlMallocAtomic</a>; 49#define <a href="#DEBUG_MEMORY">DEBUG_MEMORY</a>; 50#define <a href="#xmlMemStrdup">xmlMemStrdup</a>; 51void * <a href="#xmlMemRealloc">xmlMemRealloc</a> (void * ptr, <br/> size_t size); 52int <a href="#xmlInitMemory">xmlInitMemory</a> (void); 53void <a href="#xmlMemFree">xmlMemFree</a> (void * ptr); 54void * <a href="#xmlMemMalloc">xmlMemMalloc</a> (size_t size); 55void <a href="#xmlMemDisplayLast">xmlMemDisplayLast</a> (FILE * fp, <br/> long nbBytes); 56int <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); 57void <a href="#xmlMemoryDump">xmlMemoryDump</a> (void); 58void * <a href="#xmlMallocLoc">xmlMallocLoc</a> (size_t size, <br/> const char * file, <br/> int line); 59void <a href="#xmlMemDisplay">xmlMemDisplay</a> (FILE * fp); 60int <a href="#xmlMemBlocks">xmlMemBlocks</a> (void); 61int <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); 62typedef char * <a href="#xmlStrdupFunc">xmlStrdupFunc</a> (const char * str); 63typedef void <a href="#xmlFreeFunc">xmlFreeFunc</a> (void * mem); 64void <a href="#xmlMemShow">xmlMemShow</a> (FILE * fp, <br/> int nr); 65void * <a href="#xmlMallocAtomicLoc">xmlMallocAtomicLoc</a> (size_t size, <br/> const char * file, <br/> int line); 66void * <a href="#xmlReallocLoc">xmlReallocLoc</a> (void * ptr, <br/> size_t size, <br/> const char * file, <br/> int line); 67void <a href="#xmlCleanupMemory">xmlCleanupMemory</a> (void); 68int <a href="#xmlMemUsed">xmlMemUsed</a> (void); 69int <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); 70typedef void * <a href="#xmlReallocFunc">xmlReallocFunc</a> (void * mem, <br/> size_t size); 71typedef void * <a href="#xmlMallocFunc">xmlMallocFunc</a> (size_t size); 72int <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); 73char * <a href="#xmlMemoryStrdup">xmlMemoryStrdup</a> (const char * str); 74char * <a href="#xmlMemStrdupLoc">xmlMemStrdupLoc</a> (const char * str, <br/> const char * file, <br/> int line); 75</pre> 76 </div> 77 <div class="refsect1" lang="en"> 78 <h2>Description</h2> 79 </div> 80 <div class="refsect1" lang="en"> 81 <h2>Details</h2> 82 <div class="refsect2" lang="en"> 83 <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>; 84</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> 85</div> 86 <hr/> 87 <div class="refsect2" lang="en"><h3><a name="xmlFreeFunc"/>Function type xmlFreeFunc</h3><pre class="programlisting">void xmlFreeFunc (void * mem)<br/> 88</pre><p>Signature for a free() implementation.</p> 89<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> 90 <hr/> 91 <div class="refsect2" lang="en"><h3><a name="xmlMallocFunc"/>Function type xmlMallocFunc</h3><pre class="programlisting">void * xmlMallocFunc (size_t size)<br/> 92</pre><p>Signature for a malloc() implementation.</p> 93<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> 94 <hr/> 95 <div class="refsect2" lang="en"><h3><a name="xmlReallocFunc"/>Function type xmlReallocFunc</h3><pre class="programlisting">void * xmlReallocFunc (void * mem, <br/> size_t size)<br/> 96</pre><p>Signature for a realloc() implementation.</p> 97<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> 98 <hr/> 99 <div class="refsect2" lang="en"><h3><a name="xmlStrdupFunc"/>Function type xmlStrdupFunc</h3><pre class="programlisting">char * xmlStrdupFunc (const char * str)<br/> 100</pre><p>Signature for an strdup() implementation.</p> 101<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> 102 <hr/> 103 <div class="refsect2" lang="en"><h3><a name="xmlCleanupMemory"/>xmlCleanupMemory ()</h3><pre class="programlisting">void xmlCleanupMemory (void)<br/> 104</pre><p>Free up all the memory allocated by the library for its own use. This should not be called by user level code.</p> 105</div> 106 <hr/> 107 <div class="refsect2" lang="en"><h3><a name="xmlGcMemGet"/>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/> 108</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> 109<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> 110 <hr/> 111 <div class="refsect2" lang="en"><h3><a name="xmlGcMemSetup"/>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/> 112</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> 113<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> 114 <hr/> 115 <div class="refsect2" lang="en"><h3><a name="xmlInitMemory"/>xmlInitMemory ()</h3><pre class="programlisting">int xmlInitMemory (void)<br/> 116</pre><p>Initialize the memory layer.</p> 117<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> 118 <hr/> 119 <div class="refsect2" lang="en"><h3><a name="xmlMallocAtomicLoc"/>xmlMallocAtomicLoc ()</h3><pre class="programlisting">void * xmlMallocAtomicLoc (size_t size, <br/> const char * file, <br/> int line)<br/> 120</pre><p>a malloc() equivalent, with logging of the allocation info.</p> 121<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> 122 <hr/> 123 <div class="refsect2" lang="en"><h3><a name="xmlMallocLoc"/>xmlMallocLoc ()</h3><pre class="programlisting">void * xmlMallocLoc (size_t size, <br/> const char * file, <br/> int line)<br/> 124</pre><p>a malloc() equivalent, with logging of the allocation info.</p> 125<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> 126 <hr/> 127 <div class="refsect2" lang="en"><h3><a name="xmlMemBlocks"/>xmlMemBlocks ()</h3><pre class="programlisting">int xmlMemBlocks (void)<br/> 128</pre><p>Provides the number of memory areas currently allocated</p> 129<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> 130 <hr/> 131 <div class="refsect2" lang="en"><h3><a name="xmlMemDisplay"/>xmlMemDisplay ()</h3><pre class="programlisting">void xmlMemDisplay (FILE * fp)<br/> 132</pre><p>show in-extenso the memory blocks allocated</p> 133<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> 134 <hr/> 135 <div class="refsect2" lang="en"><h3><a name="xmlMemDisplayLast"/>xmlMemDisplayLast ()</h3><pre class="programlisting">void xmlMemDisplayLast (FILE * fp, <br/> long nbBytes)<br/> 136</pre><p>the last nbBytes of memory allocated and not freed, useful for dumping the memory left allocated between two places at runtime.</p> 137<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> 138 <hr/> 139 <div class="refsect2" lang="en"><h3><a name="xmlMemFree"/>xmlMemFree ()</h3><pre class="programlisting">void xmlMemFree (void * ptr)<br/> 140</pre><p>a free() equivalent, with error checking.</p> 141<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> 142 <hr/> 143 <div class="refsect2" lang="en"><h3><a name="xmlMemGet"/>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/> 144</pre><p>Provides the memory access functions set currently in use</p> 145<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> 146 <hr/> 147 <div class="refsect2" lang="en"><h3><a name="xmlMemMalloc"/>xmlMemMalloc ()</h3><pre class="programlisting">void * xmlMemMalloc (size_t size)<br/> 148</pre><p>a malloc() equivalent, with logging of the allocation info.</p> 149<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> 150 <hr/> 151 <div class="refsect2" lang="en"><h3><a name="xmlMemRealloc"/>xmlMemRealloc ()</h3><pre class="programlisting">void * xmlMemRealloc (void * ptr, <br/> size_t size)<br/> 152</pre><p>a realloc() equivalent, with logging of the allocation info.</p> 153<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> 154 <hr/> 155 <div class="refsect2" lang="en"><h3><a name="xmlMemSetup"/>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/> 156</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> 157<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> 158 <hr/> 159 <div class="refsect2" lang="en"><h3><a name="xmlMemShow"/>xmlMemShow ()</h3><pre class="programlisting">void xmlMemShow (FILE * fp, <br/> int nr)<br/> 160</pre><p>show a show display of the memory allocated, and dump the @nr last allocated areas which were not freed</p> 161<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> 162 <hr/> 163 <div class="refsect2" lang="en"><h3><a name="xmlMemStrdupLoc"/>xmlMemStrdupLoc ()</h3><pre class="programlisting">char * xmlMemStrdupLoc (const char * str, <br/> const char * file, <br/> int line)<br/> 164</pre><p>a strdup() equivalent, with logging of the allocation info.</p> 165<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> 166 <hr/> 167 <div class="refsect2" lang="en"><h3><a name="xmlMemUsed"/>xmlMemUsed ()</h3><pre class="programlisting">int xmlMemUsed (void)<br/> 168</pre><p>Provides the amount of memory currently allocated</p> 169<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> 170 <hr/> 171 <div class="refsect2" lang="en"><h3><a name="xmlMemoryDump"/>xmlMemoryDump ()</h3><pre class="programlisting">void xmlMemoryDump (void)<br/> 172</pre><p>Dump in-extenso the memory blocks allocated to the file .memorylist</p> 173</div> 174 <hr/> 175 <div class="refsect2" lang="en"><h3><a name="xmlMemoryStrdup"/>xmlMemoryStrdup ()</h3><pre class="programlisting">char * xmlMemoryStrdup (const char * str)<br/> 176</pre><p>a strdup() equivalent, with logging of the allocation info.</p> 177<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> 178 <hr/> 179 <div class="refsect2" lang="en"><h3><a name="xmlReallocLoc"/>xmlReallocLoc ()</h3><pre class="programlisting">void * xmlReallocLoc (void * ptr, <br/> size_t size, <br/> const char * file, <br/> int line)<br/> 180</pre><p>a realloc() equivalent, with logging of the allocation info.</p> 181<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> 182 <hr/> 183 </div> 184 </div> 185 </body> 186</html> 187
