<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> <html xmlns=“www.w3.org/1999/xhtml”> http-equiv=“Content-Type” content=“text/html; charset=UTF-8” /><link rel=“SHORTCUT ICON” href=“/favicon.ico” /><style type=“text/css”> TD {font-family: Verdana,Arial,Helvetica} BODY {font-family: Verdana,Arial,Helvetica; margin-top: 2em; margin-left: 0em; margin-right: 0em} H1 {font-family: Verdana,Arial,Helvetica} H2 {font-family: Verdana,Arial,Helvetica} H3 {font-family: Verdana,Arial,Helvetica} A:link, A:visited, A:active { text-decoration: underline } </style><style type=“text/css”>
div.deprecated pre.programlisting {border-style: double;border-color:red} pre.programlisting {border-style: double;background: #EECFA1} </style><title>Module xmlmemory from libxml2</title></head><body bgcolor="#8b7765" text="#000000" link="#a06060" vlink="#000000"><table border="0" width="100%" cellpadding="5" cellspacing="0" align="center"><tr><td width="120"><a href="http://swpat.ffii.org/"><img src="../epatents.png" alt="Action against software patents" /></a></td><td width="180"><a href="http://www.gnome.org/"><img src="../gnome2.png" alt="Gnome2 Logo" /></a><a href="http://www.w3.org/Status"><img src="../w3c.png" alt="W3C Logo" /></a><a href="http://www.redhat.com/"><img src="../redhat.gif" alt="Red Hat Logo" /></a><div align="left"><a href="http://xmlsoft.org/"><img src="../Libxml2-Logo-180x168.gif" alt="Made with Libxml2 Logo" /></a></div></td><td><table border="0" width="90%" cellpadding="2" cellspacing="0" align="center" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3" bgcolor="#fffacd"><tr><td align="center"><h1></h1><h2>Module xmlmemory from libxml2</h2></td></tr></table></td></tr></table></td></tr></table><table border="0" cellpadding="4" cellspacing="0" width="100%" align="center"><tr><td bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="2" width="100%"><tr><td valign="top" width="200" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>API Menu</b></center></td></tr><tr><td bgcolor="#fffacd"><form action="../search.php" enctype="application/x-www-form-urlencoded" method="get"><input name="query" type="text" size="20" value="" /><input name="submit" type="submit" value="Search ..." /></form><ul><li><a style="font-weight:bold" href="../index.html">Main Menu</a></li><li><a style="font-weight:bold" href="../docs.html">Developer Menu</a></li><li><a style="font-weight:bold" href="../examples/index.html">Code Examples</a></li><li><a style="font-weight:bold" href="index.html">API Menu</a></li><li><a href="libxml-parser.html">Parser API</a></li><li><a href="libxml-tree.html">Tree API</a></li><li><a href="libxml-xmlreader.html">Reader API</a></li><li><a href="../guidelines.html">XML Guidelines</a></li><li><a href="../ChangeLog.html">ChangeLog</a></li></ul></td></tr></table><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>API Indexes</b></center></td></tr><tr><td bgcolor="#fffacd"><ul><li><a href="../APIchunk0.html">Alphabetic</a></li><li><a href="../APIconstructors.html">Constructors</a></li><li><a href="../APIfunctions.html">Functions/Types</a></li><li><a href="../APIfiles.html">Modules</a></li><li><a href="../APIsymbols.html">Symbols</a></li></ul></td></tr></table><table width="100%" border="0" cellspacing="1" cellpadding="3"><tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Related links</b></center></td></tr><tr><td bgcolor="#fffacd"><ul><li><a href="http://mail.gnome.org/archives/xml/">Mail archive</a></li><li><a href="http://xmlsoft.org/XSLT/">XSLT libxslt</a></li><li><a href="http://phd.cs.unibo.it/gdome2/">DOM gdome2</a></li><li><a href="http://www.aleksey.com/xmlsec/">XML-DSig xmlsec</a></li><li><a href="ftp://xmlsoft.org/">FTP</a></li><li><a href="http://www.zlatkovic.com/projects/libxml/">Windows binaries</a></li><li><a href="http://opencsw.org/packages/libxml2">Solaris binaries</a></li><li><a href="http://www.explain.com.au/oss/libxml2xslt.html">MacOsX binaries</a></li><li><a href="http://lxml.de/">lxml Python bindings</a></li><li><a href="http://cpan.uwinnipeg.ca/dist/XML-LibXML">Perl bindings</a></li><li><a href="http://libxmlplusplus.sourceforge.net/">C++ bindings</a></li><li><a href="http://www.zend.com/php5/articles/php5-xmlphp.php#Heading4">PHP bindings</a></li><li><a href="http://sourceforge.net/projects/libxml2-pas/">Pascal bindings</a></li><li><a href="http://libxml.rubyforge.org/">Ruby bindings</a></li><li><a href="http://tclxml.sourceforge.net/">Tcl bindings</a></li><li><a href="https://gitlab.gnome.org/GNOME/libxml2/issues">Bug Tracker</a></li></ul></td></tr></table></td></tr></table></td><td valign="top" bgcolor="#8b7765"><table border="0" cellspacing="0" cellpadding="1" width="100%"><tr><td><table border="0" cellspacing="0" cellpadding="1" width="100%" bgcolor="#000000"><tr><td><table border="0" cellpadding="3" cellspacing="1" width="100%"><tr><td bgcolor="#fffacd"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="libxml-xmlexports.html"><img src="left.png" width="24" height="24" border="0" alt="Prev" /></a></td><th align="left"><a href="libxml-xmlexports.html">xmlexports</a></th><td><a accesskey="u" href="index.html"><img src="up.png" width="24" height="24" border="0" alt="Up" /></a></td><th align="left"><a href="index.html">API documentation</a></th><td><a accesskey="h" href="../index.html"><img src="home.png" width="24" height="24" border="0" alt="Home" /></a></td><th align="center"><a href="../index.html">The XML C parser and toolkit of Gnome</a></th><th align="right"><a href="libxml-xmlmodule.html">xmlmodule</a></th><td><a accesskey="n" href="libxml-xmlmodule.html"><img src="right.png" width="24" height="24" border="0" alt="Next" /></a></td></tr></table><p>provides interfaces for the memory allocator, including debugging capabilities. </p><h2>Table of Contents</h2><pre class="programlisting">#define <a href="#DEBUG_MEMORY">DEBUG_MEMORY</a></pre><pre class="programlisting">Variable <a href="libxml-xmlmemory.html#xmlMallocFunc">xmlMallocFunc</a> <a name="xmlMalloc" id="xmlMalloc"></a>xmlMalloc
</pre><pre class=“programlisting”>Variable <a href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a> <a name=“xmlMallocAtomic” id=“xmlMallocAtomic”></a>xmlMallocAtomic
</pre><pre class=“programlisting”>Variable <a href=“libxml-xmlmemory.html#xmlStrdupFunc”>xmlStrdupFunc</a> <a name=“xmlMemStrdup” id=“xmlMemStrdup”></a>xmlMemStrdup
</pre><pre class=“programlisting”>Variable <a href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a> <a name=“xmlRealloc” id=“xmlRealloc”></a>xmlRealloc
</pre><pre class=“programlisting”>void <a
href=“#xmlCleanupMemory”>xmlCleanupMemory</a>
(void)</pre> <pre class=“programlisting”>Function type: <a
href=“#xmlFreeFunc”>xmlFreeFunc</a> void <a
href=“#xmlFreeFunc”>xmlFreeFunc</a> (void * mem)
</pre> <pre class=“programlisting”>int <a
href=“#xmlGcMemGet”>xmlGcMemGet</a> (<a
href=“libxml-xmlmemory.html#xmlFreeFunc”>xmlFreeFunc</a> *
freeFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a> *
mallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a> *
mallocAtomicFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a> *
reallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlStrdupFunc”>xmlStrdupFunc</a> *
strdupFunc)</pre> <pre class=“programlisting”>int <a
href=“#xmlGcMemSetup”>xmlGcMemSetup</a>
(<a href=“libxml-xmlmemory.html#xmlFreeFunc”>xmlFreeFunc</a>
freeFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a>
mallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a>
mallocAtomicFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a>
reallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlStrdupFunc”>xmlStrdupFunc</a>
strdupFunc)</pre> <pre class=“programlisting”>int <a
href=“#xmlInitMemory”>xmlInitMemory</a>
(void)</pre> <pre class=“programlisting”>void * <a
href=“#xmlMallocAtomicLoc”>xmlMallocAtomicLoc</a>
(size_t size, <br /> const char *
file, <br /> int
line)</pre> <pre class=“programlisting”>Function type: <a
href=“#xmlMallocFunc”>xmlMallocFunc</a> void * <a
href=“#xmlMallocFunc”>xmlMallocFunc</a>
(size_t size) </pre> <pre class=“programlisting”>void *
<a href=“#xmlMallocLoc”>xmlMallocLoc</a>
(size_t size, <br /> const char *
file, <br /> int
line)</pre> <pre class=“programlisting”>int <a
href=“#xmlMemBlocks”>xmlMemBlocks</a>
(void)</pre> <pre class=“programlisting”>void <a
href=“#xmlMemDisplay”>xmlMemDisplay</a> (FILE
* fp)</pre> <pre class=“programlisting”>void <a
href=“#xmlMemDisplayLast”>xmlMemDisplayLast</a> (FILE
* fp, <br /> long
nbBytes)</pre> <pre class=“programlisting”>void <a
href=“#xmlMemFree”>xmlMemFree</a> (void *
ptr)</pre> <pre class=“programlisting”>int <a
href=“#xmlMemGet”>xmlMemGet</a> (<a
href=“libxml-xmlmemory.html#xmlFreeFunc”>xmlFreeFunc</a> *
freeFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a> *
mallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a> *
reallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlStrdupFunc”>xmlStrdupFunc</a> *
strdupFunc)</pre> <pre class=“programlisting”>void * <a
href=“#xmlMemMalloc”>xmlMemMalloc</a>
(size_t size)</pre> <pre class=“programlisting”>void *
<a href=“#xmlMemRealloc”>xmlMemRealloc</a>
(void * ptr, <br /> size_t
size)</pre> <pre class=“programlisting”>int <a
href=“#xmlMemSetup”>xmlMemSetup</a> (<a
href=“libxml-xmlmemory.html#xmlFreeFunc”>xmlFreeFunc</a> freeFunc,
<br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a>
mallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a>
reallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlStrdupFunc”>xmlStrdupFunc</a>
strdupFunc)</pre> <pre class=“programlisting”>void <a
href=“#xmlMemShow”>xmlMemShow</a> (FILE * fp,
<br /> int nr)</pre>
<pre class=“programlisting”>char * <a
href=“#xmlMemStrdupLoc”>xmlMemStrdupLoc</a>
(const char * str, <br />
const char * file, <br /> int
line)</pre> <pre class=“programlisting”>int <a
href=“#xmlMemUsed”>xmlMemUsed</a>
(void)</pre> <pre class=“programlisting”>void <a
href=“#xmlMemoryDump”>xmlMemoryDump</a>
(void)</pre> <pre class=“programlisting”>char * <a
href=“#xmlMemoryStrdup”>xmlMemoryStrdup</a>
(const char * str)</pre> <pre class=“programlisting”>Function
type: <a href=“#xmlReallocFunc”>xmlReallocFunc</a> void *
<a href=“#xmlReallocFunc”>xmlReallocFunc</a>
(void * mem, <br /> size_t size)
</pre> <pre class=“programlisting”>void * <a
href=“#xmlReallocLoc”>xmlReallocLoc</a> (void
* ptr, <br /> size_t size,
<br /> const char * file, <br
/> int line)</pre> <pre
class=“programlisting”>Function type: <a
href=“#xmlStrdupFunc”>xmlStrdupFunc</a> char * <a
href=“#xmlStrdupFunc”>xmlStrdupFunc</a>
(const char * str) </pre> <h2>Description</h2>
<h3><a name=“DEBUG_MEMORY” id=“DEBUG_MEMORY”></a>Macro:
DEBUG_MEMORY</h3><pre>#define
DEBUG_MEMORY</pre><p><a
href=“libxml-xmlmemory.html#DEBUG_MEMORY”>DEBUG_MEMORY</a>
replaces the allocator with a collect and debug shell to the libc
allocator. <a
href=“libxml-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=“libxml-xmlversion.html#DEBUG_MEMORY_LOCATION”>DEBUG_MEMORY_LOCATION</a></p>
<h3><a name=“xmlCleanupMemory”
id=“xmlCleanupMemory”></a>Function:
xmlCleanupMemory</h3><pre class=“programlisting”>void
xmlCleanupMemory (void)<br />
</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>
<h3><a name=“xmlFreeFunc” id=“xmlFreeFunc”></a>Function
type: xmlFreeFunc</h3><pre class=“programlisting”>Function
type: xmlFreeFunc void xmlFreeFunc (void * mem)
</pre><p>Signature for a free()
implementation.</p><div class=“variablelist”><table
border=“0”><col align=“left”
/><tbody><tr><td><span
class=“term”>mem
:</span></td><td>an
already allocated block of
memory</td></tr></tbody></table></div><br
/> <h3><a name=“xmlGcMemGet”
id=“xmlGcMemGet”></a>Function: xmlGcMemGet</h3><pre
class=“programlisting”>int xmlGcMemGet (<a
href=“libxml-xmlmemory.html#xmlFreeFunc”>xmlFreeFunc</a> *
freeFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a> *
mallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a> *
mallocAtomicFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a> *
reallocFunc, <br /> <a
href=“libxml-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”>freeFunc
:</span></td><td>place
to save the free() function in
use</td></tr><tr><td><span
class=“term”>mallocFunc
:</span></td><td>place
to save the malloc() function in
use</td></tr><tr><td><span
class=“term”>mallocAtomicFunc
:</span></td><td>place
to save the atomic malloc() function in
use</td></tr><tr><td><span
class=“term”>reallocFunc
:</span></td><td>place
to save the realloc() function in
use</td></tr><tr><td><span
class=“term”>strdupFunc
:</span></td><td>place
to save the strdup() function in
use</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>0
on
success</td></tr></tbody></table></div><h3><a
name=“xmlGcMemSetup” id=“xmlGcMemSetup”></a>Function:
xmlGcMemSetup</h3><pre class=“programlisting”>int
xmlGcMemSetup (<a
href=“libxml-xmlmemory.html#xmlFreeFunc”>xmlFreeFunc</a> freeFunc,
<br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a>
mallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a>
mallocAtomicFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a>
reallocFunc, <br /> <a
href=“libxml-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”>freeFunc
:</span></td><td>the
free() function to use</td></tr><tr><td><span
class=“term”>mallocFunc
:</span></td><td>the
malloc() function to use</td></tr><tr><td><span
class=“term”>mallocAtomicFunc
:</span></td><td>the
malloc() function to use for atomic
allocations</td></tr><tr><td><span
class=“term”>reallocFunc
:</span></td><td>the
realloc() function to use</td></tr><tr><td><span
class=“term”>strdupFunc
:</span></td><td>the
strdup() function to use</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>0
on
success</td></tr></tbody></table></div><h3><a
name=“xmlInitMemory” id=“xmlInitMemory”></a>Function:
xmlInitMemory</h3><pre class=“programlisting”>int
xmlInitMemory (void)<br />
</pre><p>Initialize the memory layer.</p> <div
class=“variablelist”><table border=“0”><col align=“left”
/><tbody><tr><td><span
class=“term”>Returns
:</span></td><td>0
on
success</td></tr></tbody></table></div><h3><a
name=“xmlMallocAtomicLoc” id=“xmlMallocAtomicLoc”></a>Function:
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”>size
:</span></td><td>an
unsigned int specifying the size in byte to
allocate.</td></tr><tr><td><span
class=“term”>file
:</span></td><td>the
file name or NULL</td></tr><tr><td><span
class=“term”>line
:</span></td><td>the
line number</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the allocated area or NULL in case of lack of
memory.</td></tr></tbody></table></div><h3><a
name=“xmlMallocFunc” id=“xmlMallocFunc”></a>Function type:
xmlMallocFunc</h3><pre class=“programlisting”>Function type:
xmlMallocFunc void * xmlMallocFunc (size_t size)
</pre><p>Signature for a malloc()
implementation.</p><div class=“variablelist”><table
border=“0”><col align=“left”
/><tbody><tr><td><span
class=“term”>size
:</span></td><td>the
size requested in bytes</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the newly allocated block or NULL in case of
error.</td></tr></tbody></table></div><br
/> <h3><a name=“xmlMallocLoc”
id=“xmlMallocLoc”></a>Function: 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”>size
:</span></td><td>an
int specifying the size in byte to
allocate.</td></tr><tr><td><span
class=“term”>file
:</span></td><td>the
file name or NULL</td></tr><tr><td><span
class=“term”>line
:</span></td><td>the
line number</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the allocated area or NULL in case of lack of
memory.</td></tr></tbody></table></div><h3><a
name=“xmlMemBlocks” id=“xmlMemBlocks”></a>Function:
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”>Returns
:</span></td><td>an
int representing the number of
blocks</td></tr></tbody></table></div><h3><a
name=“xmlMemDisplay” id=“xmlMemDisplay”></a>Function:
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”>fp
:</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><h3><a
name=“xmlMemDisplayLast” id=“xmlMemDisplayLast”></a>Function:
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”>fp
:</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”>nbBytes
:</span></td><td>the
amount of memory to
dump</td></tr></tbody></table></div><h3><a
name=“xmlMemFree” id=“xmlMemFree”></a>Function:
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”>ptr
:</span></td><td>the
memory block
pointer</td></tr></tbody></table></div><h3><a
name=“xmlMemGet” id=“xmlMemGet”></a>Function:
xmlMemGet</h3><pre class=“programlisting”>int xmlMemGet
(<a href=“libxml-xmlmemory.html#xmlFreeFunc”>xmlFreeFunc</a> *
freeFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a> *
mallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a> *
reallocFunc, <br /> <a
href=“libxml-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”>freeFunc
:</span></td><td>place
to save the free() function in
use</td></tr><tr><td><span
class=“term”>mallocFunc
:</span></td><td>place
to save the malloc() function in
use</td></tr><tr><td><span
class=“term”>reallocFunc
:</span></td><td>place
to save the realloc() function in
use</td></tr><tr><td><span
class=“term”>strdupFunc
:</span></td><td>place
to save the strdup() function in
use</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>0
on
success</td></tr></tbody></table></div><h3><a
name=“xmlMemMalloc” id=“xmlMemMalloc”></a>Function:
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”>size
:</span></td><td>an
int specifying the size in byte to
allocate.</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the allocated area or NULL in case of lack of
memory.</td></tr></tbody></table></div><h3><a
name=“xmlMemRealloc” id=“xmlMemRealloc”></a>Function:
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”>ptr
:</span></td><td>the
initial memory block
pointer</td></tr><tr><td><span
class=“term”>size
:</span></td><td>an
int specifying the size in byte to
allocate.</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the allocated area or NULL in case of lack of
memory.</td></tr></tbody></table></div><h3><a
name=“xmlMemSetup” id=“xmlMemSetup”></a>Function:
xmlMemSetup</h3><pre class=“programlisting”>int xmlMemSetup
(<a href=“libxml-xmlmemory.html#xmlFreeFunc”>xmlFreeFunc</a>
freeFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlMallocFunc”>xmlMallocFunc</a>
mallocFunc, <br /> <a
href=“libxml-xmlmemory.html#xmlReallocFunc”>xmlReallocFunc</a>
reallocFunc, <br /> <a
href=“libxml-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”>freeFunc
:</span></td><td>the
free() function to use</td></tr><tr><td><span
class=“term”>mallocFunc
:</span></td><td>the
malloc() function to use</td></tr><tr><td><span
class=“term”>reallocFunc
:</span></td><td>the
realloc() function to use</td></tr><tr><td><span
class=“term”>strdupFunc
:</span></td><td>the
strdup() function to use</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>0
on
success</td></tr></tbody></table></div><h3><a
name=“xmlMemShow” id=“xmlMemShow”></a>Function:
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”>fp
:</span></td><td>a
FILE descriptor used as the output
file</td></tr><tr><td><span
class=“term”>nr
:</span></td><td>number
of entries to
dump</td></tr></tbody></table></div><h3><a
name=“xmlMemStrdupLoc” id=“xmlMemStrdupLoc”></a>Function:
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”>str
:</span></td><td>the
initial string pointer</td></tr><tr><td><span
class=“term”>file
:</span></td><td>the
file name or NULL</td></tr><tr><td><span
class=“term”>line
:</span></td><td>the
line number</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the new string or NULL if allocation error
occurred.</td></tr></tbody></table></div><h3><a
name=“xmlMemUsed” id=“xmlMemUsed”></a>Function:
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”>Returns
:</span></td><td>an
int representing the amount of memory
allocated.</td></tr></tbody></table></div><h3><a
name=“xmlMemoryDump” id=“xmlMemoryDump”></a>Function:
xmlMemoryDump</h3><pre class=“programlisting”>void
xmlMemoryDump (void)<br />
</pre><p>Dump in-extenso the memory blocks allocated to the
file .memorylist</p> <h3><a name=“xmlMemoryStrdup”
id=“xmlMemoryStrdup”></a>Function:
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”>str
:</span></td><td>the
initial string pointer</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the new string or NULL if allocation error
occurred.</td></tr></tbody></table></div><h3><a
name=“xmlReallocFunc” id=“xmlReallocFunc”></a>Function type:
xmlReallocFunc</h3><pre class=“programlisting”>Function type:
xmlReallocFunc void * xmlReallocFunc (void * mem, <br
/> size_t size)
</pre><p>Signature for a realloc()
implementation.</p><div class=“variablelist”><table
border=“0”><col align=“left”
/><tbody><tr><td><span
class=“term”>mem
:</span></td><td>an
already allocated block of
memory</td></tr><tr><td><span
class=“term”>size
:</span></td><td>the
new size requested in
bytes</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the newly reallocated block or NULL in case of
error.</td></tr></tbody></table></div><br
/> <h3><a name=“xmlReallocLoc”
id=“xmlReallocLoc”></a>Function: 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”>ptr
:</span></td><td>the
initial memory block
pointer</td></tr><tr><td><span
class=“term”>size
:</span></td><td>an
int specifying the size in byte to
allocate.</td></tr><tr><td><span
class=“term”>file
:</span></td><td>the
file name or NULL</td></tr><tr><td><span
class=“term”>line
:</span></td><td>the
line number</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>a
pointer to the allocated area or NULL in case of lack of
memory.</td></tr></tbody></table></div><h3><a
name=“xmlStrdupFunc” id=“xmlStrdupFunc”></a>Function type:
xmlStrdupFunc</h3><pre class=“programlisting”>Function type:
xmlStrdupFunc char * xmlStrdupFunc (const char * str)
</pre><p>Signature for an strdup()
implementation.</p><div class=“variablelist”><table
border=“0”><col align=“left”
/><tbody><tr><td><span
class=“term”>str
:</span></td><td>a
zero terminated string</td></tr><tr><td><span
class=“term”>Returns
:</span></td><td>the
copy of the string or NULL in case of
error.</td></tr></tbody></table></div><br
/> <p><a href=“../bugs.html”>Daniel
Veillard</a></p></td></tr></table></td></tr></table></td></tr></table></td></tr></table></td></tr></table></body></html>