<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.5"/> <title>libstdc++: __gnu_cxx::__pool_alloc_base Class Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); $(window).load(resizeHeight); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">libstdc++ </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.5 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> $(document).ready(function(){initNavTree('a00017.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="summary"> <a href="#pro-types">Protected Types</a> | <a href="#pro-methods">Protected Member Functions</a> | <a href="#pro-static-attribs">Static Protected Attributes</a> | <a href="a02101.html">List of all members</a> </div> <div class="headertitle"> <div class="title">__gnu_cxx::__pool_alloc_base Class Reference</div> </div> </div><!--header--> <div class="contents"> <div class="dynheader"> Inheritance diagram for __gnu_cxx::__pool_alloc_base:</div> <div class="dyncontent"> <div class="center"><iframe scrolling="no" frameborder="0" src="a02102.svg" width="203" height="126"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe> </div> <center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-types"></a> Protected Types</h2></td></tr> <tr class="memitem:a67d63010e2c9d5150f23d3c8d33b7af0"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom">{ <b>_S_align</b> }</td></tr> <tr class="separator:a67d63010e2c9d5150f23d3c8d33b7af0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a203dda9e9b812baa609a26dd3145961c"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom">{ <b>_S_max_bytes</b> }</td></tr> <tr class="separator:a203dda9e9b812baa609a26dd3145961c"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a12feb561b34b3c6fa5145a3691adbcc0"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom">{ <b>_S_free_list_size</b> }</td></tr> <tr class="separator:a12feb561b34b3c6fa5145a3691adbcc0"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-methods"></a> Protected Member Functions</h2></td></tr> <tr class="memitem:a437ebec364f2b71def39561c0f445c88"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a437ebec364f2b71def39561c0f445c88"></a> char * </td><td class="memItemRight" valign="bottom"><b>_M_allocate_chunk</b> (size_t __n, int &__nobjs)</td></tr> <tr class="separator:a437ebec364f2b71def39561c0f445c88"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:afa44b43f795e2540f54a43e6abed4b04"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afa44b43f795e2540f54a43e6abed4b04"></a> _Obj *volatile * </td><td class="memItemRight" valign="bottom"><b>_M_get_free_list</b> (size_t __bytes) throw ()</td></tr> <tr class="separator:afa44b43f795e2540f54a43e6abed4b04"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a2a11cb1cb0a7b02698302e85bf7c5605"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2a11cb1cb0a7b02698302e85bf7c5605"></a> __mutex & </td><td class="memItemRight" valign="bottom"><b>_M_get_mutex</b> () throw ()</td></tr> <tr class="separator:a2a11cb1cb0a7b02698302e85bf7c5605"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a79b8ac714623beecdb16a0183a4ddb8a"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a79b8ac714623beecdb16a0183a4ddb8a"></a> void * </td><td class="memItemRight" valign="bottom"><b>_M_refill</b> (size_t __n)</td></tr> <tr class="separator:a79b8ac714623beecdb16a0183a4ddb8a"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a36737e4e3f026a1cf9330a843e8db9e0"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a36737e4e3f026a1cf9330a843e8db9e0"></a> size_t </td><td class="memItemRight" valign="bottom"><b>_M_round_up</b> (size_t __bytes)</td></tr> <tr class="separator:a36737e4e3f026a1cf9330a843e8db9e0"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-static-attribs"></a> Static Protected Attributes</h2></td></tr> <tr class="memitem:aaa9fb068ac117f64abf3c41ea23a56fe"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aaa9fb068ac117f64abf3c41ea23a56fe"></a> static char * </td><td class="memItemRight" valign="bottom"><b>_S_end_free</b></td></tr> <tr class="separator:aaa9fb068ac117f64abf3c41ea23a56fe"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a3221bb47712a4226c92c201c2a01aee8"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3221bb47712a4226c92c201c2a01aee8"></a> static _Obj *volatile </td><td class="memItemRight" valign="bottom"><b>_S_free_list</b> [_S_free_list_size]</td></tr> <tr class="separator:a3221bb47712a4226c92c201c2a01aee8"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a3241fb6d3d570a0eefeb77b634f5251c"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3241fb6d3d570a0eefeb77b634f5251c"></a> static size_t </td><td class="memItemRight" valign="bottom"><b>_S_heap_size</b></td></tr> <tr class="separator:a3241fb6d3d570a0eefeb77b634f5251c"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a120f643bfb41aedd3e591840e8910784"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a120f643bfb41aedd3e591840e8910784"></a> static char * </td><td class="memItemRight" valign="bottom"><b>_S_start_free</b></td></tr> <tr class="separator:a120f643bfb41aedd3e591840e8910784"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>Base class for __pool_alloc. </p> <p>Uses various allocators to fulfill underlying requests (and makes as few requests as possible when in default high-speed pool mode).</p> <p>Important implementation properties: 0. If globally mandated, then allocate objects from new 1. If the clients request an object of size > _S_max_bytes, the resulting object will be obtained directly from new 2. In all other cases, we allocate an object of size exactly _S_round_up(requested_size). Thus the client has enough size information that we can return the object to the proper free list without permanently losing part of the object. </p> <p>Definition at line <a class="el" href="a01425_source.html#l00078">78</a> of file <a class="el" href="a01425_source.html">pool_allocator.h</a>.</p> </div><hr/>The documentation for this class was generated from the following file:<ul> <li><a class="el" href="a01425_source.html">pool_allocator.h</a></li> </ul> </div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="a01648.html">__gnu_cxx</a></li><li class="navelem"><a class="el" href="a00017.html">__pool_alloc_base</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.5 </li> </ul> </div> </body> </html>