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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>memcached: slabs.h File Reference</title>
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<div class="contents">
<h1>slabs.h File Reference</h1>
<p>
<div class="dynheader">
This graph shows which files directly or indirectly include this file:</div>
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<p><center><img src="slabs_8h__dep__incl.png" border="0" usemap="#slabs.hdep_map" alt=""></center>
<map name="slabs.hdep_map">
<area shape="rect" id="node3" href="memcached_8h.html" title="The main memcached header holding commonly used data structures and function prototypes..." alt="" coords="499,83,616,112"><area shape="rect" id="node5" href="assoc_8c.html" title="assoc.c" alt="" coords="5,160,77,189"><area shape="rect" id="node7" href="daemon_8c.html" title="daemon.c" alt="" coords="101,160,189,189"><area shape="rect" id="node9" href="globals_8c.html" title="globals.c" alt="" coords="213,160,291,189"><area shape="rect" id="node11" href="hash_8c.html" title="hash.c" alt="" coords="315,160,379,189"><area shape="rect" id="node13" href="items_8c.html" title="items.c" alt="" coords="403,160,475,189"><area shape="rect" id="node15" href="memcached_8c.html" title="memcached.c" alt="" coords="499,160,616,189"><area shape="rect" id="node17" href="sizes_8c.html" title="sizes.c" alt="" coords="640,160,707,189"><area shape="rect" id="node19" href="slabs_8c.html" title="slabs.c" alt="" coords="731,160,797,189"><area shape="rect" id="node21" href="stats_8c.html" title="stats.c" alt="" coords="821,160,891,189"><area shape="rect" id="node23" href="thread_8c.html" title="thread.c" alt="" coords="915,160,992,189"><area shape="rect" id="node25" href="util_8c.html" title="util.c" alt="" coords="1016,160,1069,189"></map>
</div>
<p>
<a href="slabs_8h-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="slabs_8h.html#8cc4ad6521988a6806c2600bd2f2010b">slabs_init</a> (const size_t limit, const double factor, const bool prealloc)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Init the subsystem. <a href="#8cc4ad6521988a6806c2600bd2f2010b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="slabs_8h.html#89e035684df4bb1ef8b0852cb2c20f00">slabs_clsid</a> (const size_t size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Given object size, return id to use when allocating/freeing memory for object 0 means error: can't store such a large object. <a href="#89e035684df4bb1ef8b0852cb2c20f00"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="slabs_8h.html#0996b645b6e3f2a3c4b21e261abfd0d4">slabs_alloc</a> (const size_t size, unsigned int id)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allocate object of given length. <a href="#0996b645b6e3f2a3c4b21e261abfd0d4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="slabs_8h.html#870e49205e3adc320d078b03d8ea3b23">slabs_free</a> (void *ptr, size_t size, unsigned int id)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Free previously allocated object. <a href="#870e49205e3adc320d078b03d8ea3b23"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="slabs_8h.html#0e8837809ec40b8024ca6f972830176c">get_stats</a> (const char *stat_type, int nkey, <a class="el" href="memcached_8h.html#b8d9bd9ba0b7b765633bf9b6cbd6aa30">ADD_STAT</a> add_stats, void *c)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a datum for <a class="el" href="structstats.html" title="Global stats.">stats</a> in binary protocol. <a href="#0e8837809ec40b8024ca6f972830176c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="slabs_8h.html#0d52f605d063c6de9e3f32e08126915c">slabs_stats</a> (<a class="el" href="memcached_8h.html#b8d9bd9ba0b7b765633bf9b6cbd6aa30">ADD_STAT</a> add_stats, void *c)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Fill buffer with <a class="el" href="structstats.html" title="Global stats.">stats</a>. <a href="#0d52f605d063c6de9e3f32e08126915c"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="slabs_8h.html#49b5362752d1ccb850dc1af43c479a7a">slabs_reassign</a> (unsigned char srcid, unsigned char dstid)</td></tr>
</table>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="0e8837809ec40b8024ca6f972830176c"></a><!-- doxytag: member="slabs.h::get_stats" ref="0e8837809ec40b8024ca6f972830176c" args="(const char *stat_type, int nkey, ADD_STAT add_stats, void *c)" -->
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<td class="memname">bool get_stats </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>stat_type</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>nkey</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="memcached_8h.html#b8d9bd9ba0b7b765633bf9b6cbd6aa30">ADD_STAT</a> </td>
<td class="paramname"> <em>add_stats</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"> <em>c</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Return a datum for <a class="el" href="structstats.html" title="Global stats.">stats</a> in binary protocol.
<p>
<p>
<div class="dynheader">
Here is the call graph for this function:</div>
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<p><center><img src="slabs_8h_0e8837809ec40b8024ca6f972830176c_cgraph.png" border="0" usemap="#slabs_8h_0e8837809ec40b8024ca6f972830176c_cgraph_map" alt=""></center>
<map name="slabs_8h_0e8837809ec40b8024ca6f972830176c_cgraph_map">
<area shape="rect" id="node3" href="memcached_8h.html#2b022c04b5ceac327d82762206f51ca8" title="item_stats" alt="" coords="163,5,259,35"><area shape="rect" id="node7" href="memcached_8h.html#76a67af22fe6ce802c07e857f06cbdc8" title="item_stats_sizes" alt="" coords="143,59,279,88"><area shape="rect" id="node11" href="slabs_8c.html#0d52f605d063c6de9e3f32e08126915c" title="Fill buffer with stats." alt="" coords="163,112,259,141"><area shape="rect" id="node5" href="items_8c.html#c37d9c76fff27f10050dc069eef7d50c" title="do_item_stats" alt="" coords="348,5,468,35"><area shape="rect" id="node9" href="items_8c.html#83d27e539e6256fe75653def1f4594e3" title="dumps out a list of objects of each size, with granularity of 32 bytes" alt="" coords="328,59,488,88"></map>
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</div>
</div><p>
<a class="anchor" name="0996b645b6e3f2a3c4b21e261abfd0d4"></a><!-- doxytag: member="slabs.h::slabs_alloc" ref="0996b645b6e3f2a3c4b21e261abfd0d4" args="(const size_t size, unsigned int id)" -->
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<div class="memproto">
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<td class="memname">void* slabs_alloc </td>
<td>(</td>
<td class="paramtype">const size_t </td>
<td class="paramname"> <em>size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>id</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td></td>
</tr>
</table>
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<div class="memdoc">
<p>
Allocate object of given length.
<p>
0 on error
<p>
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<p><center><img src="slabs_8h_0996b645b6e3f2a3c4b21e261abfd0d4_icgraph.png" border="0" usemap="#slabs_8h_0996b645b6e3f2a3c4b21e261abfd0d4_icgraph_map" alt=""></center>
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</div>
</div>
</div><p>
<a class="anchor" name="89e035684df4bb1ef8b0852cb2c20f00"></a><!-- doxytag: member="slabs.h::slabs_clsid" ref="89e035684df4bb1ef8b0852cb2c20f00" args="(const size_t size)" -->
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<td class="memname">unsigned int slabs_clsid </td>
<td>(</td>
<td class="paramtype">const size_t </td>
<td class="paramname"> <em>size</em> </td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Given object size, return id to use when allocating/freeing memory for object 0 means error: can't store such a large object.
<p>
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<p><center><img src="slabs_8h_89e035684df4bb1ef8b0852cb2c20f00_icgraph.png" border="0" usemap="#slabs_8h_89e035684df4bb1ef8b0852cb2c20f00_icgraph_map" alt=""></center>
<map name="slabs_8h_89e035684df4bb1ef8b0852cb2c20f00_icgraph_map">
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</div>
</div><p>
<a class="anchor" name="870e49205e3adc320d078b03d8ea3b23"></a><!-- doxytag: member="slabs.h::slabs_free" ref="870e49205e3adc320d078b03d8ea3b23" args="(void *ptr, size_t size, unsigned int id)" -->
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<td class="memname">void slabs_free </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"> <em>ptr</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"> <em>size</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>id</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<p>
Free previously allocated object.
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<p>
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<p><center><img src="slabs_8h_870e49205e3adc320d078b03d8ea3b23_icgraph.png" border="0" usemap="#slabs_8h_870e49205e3adc320d078b03d8ea3b23_icgraph_map" alt=""></center>
<map name="slabs_8h_870e49205e3adc320d078b03d8ea3b23_icgraph_map">
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</div>
</div><p>
<a class="anchor" name="8cc4ad6521988a6806c2600bd2f2010b"></a><!-- doxytag: member="slabs.h::slabs_init" ref="8cc4ad6521988a6806c2600bd2f2010b" args="(const size_t limit, const double factor, const bool prealloc)" -->
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<td class="memname">void slabs_init </td>
<td>(</td>
<td class="paramtype">const size_t </td>
<td class="paramname"> <em>limit</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const double </td>
<td class="paramname"> <em>factor</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const bool </td>
<td class="paramname"> <em>prealloc</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td></td>
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<p>
Init the subsystem.
<p>
1st argument is the limit on no. of bytes to allocate, 0 if no limit. 2nd argument is the growth factor; each slab will use a chunk size equal to the previous slab's chunk size times this factor. 3rd argument specifies if the slab allocator should allocate all memory up front (if true), or allocate memory in chunks as it is needed (if false)
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<a class="anchor" name="49b5362752d1ccb850dc1af43c479a7a"></a><!-- doxytag: member="slabs.h::slabs_reassign" ref="49b5362752d1ccb850dc1af43c479a7a" args="(unsigned char srcid, unsigned char dstid)" -->
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<td class="memname">int slabs_reassign </td>
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<td class="paramtype">unsigned char </td>
<td class="paramname"> <em>srcid</em>, </td>
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<td class="paramtype">unsigned char </td>
<td class="paramname"> <em>dstid</em></td><td> </td>
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<a class="anchor" name="0d52f605d063c6de9e3f32e08126915c"></a><!-- doxytag: member="slabs.h::slabs_stats" ref="0d52f605d063c6de9e3f32e08126915c" args="(ADD_STAT add_stats, void *c)" -->
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<td class="memname">void slabs_stats </td>
<td>(</td>
<td class="paramtype"><a class="el" href="memcached_8h.html#b8d9bd9ba0b7b765633bf9b6cbd6aa30">ADD_STAT</a> </td>
<td class="paramname"> <em>add_stats</em>, </td>
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<td class="paramtype">void * </td>
<td class="paramname"> <em>c</em></td><td> </td>
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Fill buffer with <a class="el" href="structstats.html" title="Global stats.">stats</a>.
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<hr size="1"><address style="text-align: right;"><small>Generated on Fri Apr 17 15:14:54 2009 for memcached by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address>
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