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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>NeL: TemplateNLMISC::CPoolMemory< T > class Reference</title>
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<h1>NLMISC::CPoolMemory< T > Class Template Reference</h1><code>#include <<a class="el" href="a06192.html">pool_memory.h</a>></code>
<p>
<hr><a name="_details"></a><h2>Detailed Description</h2>
<h3>template<class T><br>
class NLMISC::CPoolMemory< T ></h3>
Pool memory allocation<p>
This memory manager allocates bloc of elements and free all the elements at the same time. Useful for temporary allocation.<p>
<dl compact><dt><b>Author:</b></dt><dd>Cyril 'Hulud' Corvazier <p>
Nevrax France </dd></dl>
<dl compact><dt><b>Date:</b></dt><dd>2001 </dd></dl>
<p>
<p>
Definition at line <a class="el" href="a06192.html#l00049">49</a> of file <a class="el" href="a06192.html">pool_memory.h</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>T * </td><td class="memItemRight" valign=bottom><a class="el" href="a03102.html#NLMISC_1_1CPoolMemorya0">allocate</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="a03102.html#NLMISC_1_1CPoolMemorya1">CPoolMemory</a> (<a class="el" href="a04558.html#a15">uint</a> blockSize=10)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03102.html#NLMISC_1_1CPoolMemorya2">free</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03102.html#NLMISC_1_1CPoolMemorya3">purge</a> ()</td></tr>
<tr><td colspan=2><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>std::list< std::vector< T > > </td><td class="memItemRight" valign=bottom><a class="el" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>std::list< std::vector< T <br>
> >::iterator </td><td class="memItemRight" valign=bottom><a class="el" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a04558.html#a15">uint</a> </td><td class="memItemRight" valign=bottom><a class="el" href="a03102.html#NLMISC_1_1CPoolMemoryr2">_BlockSize</a></td></tr>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="NLMISC_1_1CPoolMemorya1" doxytag="NLMISC::CPoolMemory::CPoolMemory" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> <a class="el" href="a03102.html">NLMISC::CPoolMemory</a>< T >::<a class="el" href="a03102.html">CPoolMemory</a> </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="a04558.html#a15">uint</a> </td>
<td class="mdname1" valign="top" nowrap> <em>blockSize</em> = 10 </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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Definition at line <a class="el" href="a06192.html#l00057">57</a> of file <a class="el" href="a06192.html">pool_memory.h</a>.
<p>
<div class="fragment"><pre>00058 {
00059 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr2">_BlockSize</a>=blockSize;
00060 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>=<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.end();
00061 }
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="NLMISC_1_1CPoolMemorya0" doxytag="NLMISC::CPoolMemory::allocate" ></a><p>
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<td class="md" nowrap valign="top"> T* <a class="el" href="a03102.html">NLMISC::CPoolMemory</a>< T >::allocate </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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Definition at line <a class="el" href="a06192.html#l00068">68</a> of file <a class="el" href="a06192.html">pool_memory.h</a>.
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<div class="fragment"><pre>00069 {
00070 <span class="comment">// End of block ?</span>
00071 <span class="keywordflow">if</span> ( (<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>!=<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.end()) && (<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>->size()>=<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr2">_BlockSize</a>) )
00072 {
00073 <span class="comment">// Get next block</span>
00074 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>++;
00075 }
00076
00077 <span class="comment">// Out of memory ?</span>
00078 <span class="keywordflow">if</span> (<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>==<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.end())
00079 {
00080 <span class="comment">// Add a block</span>
00081 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.resize (<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.size()+1);
00082
00083 <span class="comment">// Pointer on the new block</span>
00084 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>=<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.end ();
00085 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>--;
00086
00087 <span class="comment">// Reserve it</span>
00088 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>->reserve (_BlockSize);
00089 }
00090
00091 <span class="comment">// Allocate</span>
00092 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>->resize (<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>->size()+1);
00093
00094 <span class="comment">// Return the pointer</span>
00095 <span class="keywordflow">return</span> &*((<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>->end ()-1));
00096 }
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<a class="anchor" name="NLMISC_1_1CPoolMemorya2" doxytag="NLMISC::CPoolMemory::free" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> void <a class="el" href="a03102.html">NLMISC::CPoolMemory</a>< T >::free </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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Definition at line <a class="el" href="a06192.html#l00101">101</a> of file <a class="el" href="a06192.html">pool_memory.h</a>.
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<div class="fragment"><pre>00102 {
00103 <span class="keyword">typename</span> std::list< std::vector<T> >::iterator ite=<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.begin();
00104 <span class="keywordflow">while</span> (ite!=<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.end())
00105 {
00106 <span class="comment">// Clear the block</span>
00107 ite->clear ();
00108
00109 <span class="comment">// Check size in not zero</span>
00110 <a class="code" href="a04199.html#a6">nlassert</a> (ite->capacity ()>0);
00111
00112 ite++;
00113 }
00114 <span class="comment">// Pointer at the begining</span>
00115 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>=<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.begin();
00116 }
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<a class="anchor" name="NLMISC_1_1CPoolMemorya3" doxytag="NLMISC::CPoolMemory::purge" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> void <a class="el" href="a03102.html">NLMISC::CPoolMemory</a>< T >::purge </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
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Definition at line <a class="el" href="a06192.html#l00121">121</a> of file <a class="el" href="a06192.html">pool_memory.h</a>.
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<div class="fragment"><pre>00122 {
00123 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.clear();
00124 <a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a>=<a class="code" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a>.end();
00125 }
</pre></div> </td>
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<hr><h2>Field Documentation</h2>
<a class="anchor" name="NLMISC_1_1CPoolMemoryr0" doxytag="NLMISC::CPoolMemory::_BlockList" ></a><p>
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<td class="md" nowrap valign="top"> std::list< std::vector<T> > <a class="el" href="a03102.html">NLMISC::CPoolMemory</a>< T >::<a class="el" href="a03102.html#NLMISC_1_1CPoolMemoryr0">_BlockList</a><code> [private]</code>
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Definition at line <a class="el" href="a06192.html#l00129">129</a> of file <a class="el" href="a06192.html">pool_memory.h</a>. </td>
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<a class="anchor" name="NLMISC_1_1CPoolMemoryr1" doxytag="NLMISC::CPoolMemory::_BlockPointer" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> std::list< std::vector<T> >::iterator <a class="el" href="a03102.html">NLMISC::CPoolMemory</a>< T >::<a class="el" href="a03102.html#NLMISC_1_1CPoolMemoryr1">_BlockPointer</a><code> [private]</code>
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Definition at line <a class="el" href="a06192.html#l00130">130</a> of file <a class="el" href="a06192.html">pool_memory.h</a>. </td>
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<a class="anchor" name="NLMISC_1_1CPoolMemoryr2" doxytag="NLMISC::CPoolMemory::_BlockSize" ></a><p>
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template<class T> </td>
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<td class="md" nowrap valign="top"> <a class="el" href="a04558.html#a15">uint</a> <a class="el" href="a03102.html">NLMISC::CPoolMemory</a>< T >::<a class="el" href="a03102.html#NLMISC_1_1CPoolMemoryr2">_BlockSize</a><code> [private]</code>
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Definition at line <a class="el" href="a06192.html#l00128">128</a> of file <a class="el" href="a06192.html">pool_memory.h</a>. </td>
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="a06192.html">pool_memory.h</a></ul>
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