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<!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 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>Apache Portable Runtime Utility Library: apr_bucket_pool Struct 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="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></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 id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">Apache Portable Runtime Utility Library </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.13 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); </script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> </div><!-- top --> <div class="header"> <div class="summary"> <a href="#pub-attribs">Data Fields</a> </div> <div class="headertitle"> <div class="title">apr_bucket_pool Struct Reference<div class="ingroups"><a class="el" href="group___a_p_r___util.html">APR Utility Functions</a> » <a class="el" href="group___a_p_r___util___bucket___brigades.html">Bucket Brigades</a></div></div> </div> </div><!--header--> <div class="contents"> <p><code>#include <<a class="el" href="apr__buckets_8h_source.html">apr_buckets.h</a>></code></p> <div class="dynheader"> Collaboration diagram for apr_bucket_pool:</div> <div class="dyncontent"> <div class="center"><img src="structapr__bucket__pool__coll__graph.png" border="0" usemap="#apr__bucket__pool_coll__map" alt="Collaboration graph"/></div> <!-- MAP 0 --> <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a> Data Fields</h2></td></tr> <tr class="memitem:a0fe0b0dedea28fb1ed0a1a0f42338225"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structapr__bucket__heap.html">apr_bucket_heap</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__bucket__pool.html#a0fe0b0dedea28fb1ed0a1a0f42338225">heap</a></td></tr> <tr class="separator:a0fe0b0dedea28fb1ed0a1a0f42338225"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a9ee5297361ba548a20c3aa626a37c068"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__bucket__pool.html#a9ee5297361ba548a20c3aa626a37c068">base</a></td></tr> <tr class="separator:a9ee5297361ba548a20c3aa626a37c068"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:af55591a1e7f3b097e7c271683bc80968"><td class="memItemLeft" align="right" valign="top">apr_pool_t * </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__bucket__pool.html#af55591a1e7f3b097e7c271683bc80968">pool</a></td></tr> <tr class="separator:af55591a1e7f3b097e7c271683bc80968"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a651aa0c18658342daf72ff86680bfaca"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___a_p_r___util___bucket___brigades.html#ga9a30babfeb6e290db124d8f9b69e49e4">apr_bucket_alloc_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structapr__bucket__pool.html#a651aa0c18658342daf72ff86680bfaca">list</a></td></tr> <tr class="separator:a651aa0c18658342daf72ff86680bfaca"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>A bucket referring to data allocated from a pool </p> </div><h2 class="groupheader">Field Documentation</h2> <a id="a9ee5297361ba548a20c3aa626a37c068"></a> <h2 class="memtitle"><span class="permalink"><a href="#a9ee5297361ba548a20c3aa626a37c068">◆ </a></span>base</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">const char* apr_bucket_pool::base</td> </tr> </table> </div><div class="memdoc"> <p>The block of data actually allocated from the pool. Segments of this block are referenced by adjusting the start and length of the <a class="el" href="structapr__bucket.html">apr_bucket</a> accordingly. This will be NULL after the pool gets cleaned up. </p> </div> </div> <a id="a0fe0b0dedea28fb1ed0a1a0f42338225"></a> <h2 class="memtitle"><span class="permalink"><a href="#a0fe0b0dedea28fb1ed0a1a0f42338225">◆ </a></span>heap</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="structapr__bucket__heap.html">apr_bucket_heap</a> apr_bucket_pool::heap</td> </tr> </table> </div><div class="memdoc"> <p>The pool bucket must be able to be easily morphed to a heap bucket if the pool gets cleaned up before all references are destroyed. This <a class="el" href="structapr__bucket__heap.html">apr_bucket_heap</a> structure is populated automatically when the pool gets cleaned up, and subsequent calls to pool_read() will result in the <a class="el" href="structapr__bucket.html">apr_bucket</a> in question being morphed into a regular heap bucket. (To avoid having to do many extra refcount manipulations and b->data manipulations, the <a class="el" href="structapr__bucket__pool.html">apr_bucket_pool</a> struct actually <em>contains</em> the <a class="el" href="structapr__bucket__heap.html">apr_bucket_heap</a> struct that it will become as its first element; the two share their <a class="el" href="structapr__bucket__refcount.html">apr_bucket_refcount</a> members.) </p> </div> </div> <a id="a651aa0c18658342daf72ff86680bfaca"></a> <h2 class="memtitle"><span class="permalink"><a href="#a651aa0c18658342daf72ff86680bfaca">◆ </a></span>list</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group___a_p_r___util___bucket___brigades.html#ga9a30babfeb6e290db124d8f9b69e49e4">apr_bucket_alloc_t</a>* apr_bucket_pool::list</td> </tr> </table> </div><div class="memdoc"> <p>The freelist this structure was allocated from, which is needed in the cleanup phase in order to allocate space on the heap </p> </div> </div> <a id="af55591a1e7f3b097e7c271683bc80968"></a> <h2 class="memtitle"><span class="permalink"><a href="#af55591a1e7f3b097e7c271683bc80968">◆ </a></span>pool</h2> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">apr_pool_t* apr_bucket_pool::pool</td> </tr> </table> </div><div class="memdoc"> <p>The pool the data was allocated from. When the pool is cleaned up, this gets set to NULL as an indicator to pool_read() that the data is now on the heap and so it should morph the bucket into a regular heap bucket before continuing. </p> </div> </div> <hr/>The documentation for this struct was generated from the following file:<ul> <li><a class="el" href="apr__buckets_8h_source.html">apr_buckets.h</a></li> </ul> </div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.13 </small></address> </body> </html>