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<div class="headertitle"><div class="title">cxx::Slab_static< Type, Slab_size, Max_free, Alloc > Class Template Reference<div class="ingroups"><a class="el" href="group__cxx__api.html">Small C++ Template Library</a></div></div></div>
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<p>Merged slab allocator (allocators for objects of the same size are merged together).
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<a href="#details">More...</a></p>
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<p><code>#include <<a class="el" href="slab__alloc_source.html">slab_alloc</a>></code></p>
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<div id="dynsection-0" onclick="return dynsection.toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"><span class="dynarrow"><span class="arrowhead closed"></span></span>Inheritance diagram for cxx::Slab_static< Type, Slab_size, Max_free, Alloc >:</div>
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<div id="dynsection-1" onclick="return dynsection.toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"><span class="dynarrow"><span class="arrowhead closed"></span></span>Collaboration diagram for cxx::Slab_static< Type, Slab_size, Max_free, Alloc >:</div>
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</div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-pub-methods" class="groupheader"><a id="pub-methods" name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:ac32de50ae84bfb0cad8b4e12ebdcbdec" id="r_ac32de50ae84bfb0cad8b4e12ebdcbdec"><td class="memItemLeft" align="right" valign="top">Type * </td><td class="memItemRight" valign="bottom"><a class="el" href="#ac32de50ae84bfb0cad8b4e12ebdcbdec">alloc</a> () noexcept</td></tr>
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<tr class="memdesc:ac32de50ae84bfb0cad8b4e12ebdcbdec"><td class="mdescLeft"> </td><td class="mdescRight">Allocate an object of type <span class="tt">Type</span>. <br /></td></tr>
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<tr class="inherit_header pub_methods_classcxx_1_1Base__slab__static"><td colspan="2" onclick="javascript:dynsection.toggleInherit('pub_methods_classcxx_1_1Base__slab__static')"><span class="dynarrow"><span class="arrowhead closed"></span></span>Public Member Functions inherited from <a class="el" href="classcxx_1_1Base__slab__static.html">cxx::Base_slab_static< sizeof(Type), L4_PAGESIZE, 2, New_allocator ></a></td></tr>
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<tr class="memitem:a98cad873190ba381e371e17a2d9b4e81 inherit pub_methods_classcxx_1_1Base__slab__static" id="r_a98cad873190ba381e371e17a2d9b4e81"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="classcxx_1_1Base__slab__static.html#a98cad873190ba381e371e17a2d9b4e81">alloc</a> () noexcept</td></tr>
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<tr class="memdesc:a98cad873190ba381e371e17a2d9b4e81 inherit pub_methods_classcxx_1_1Base__slab__static"><td class="mdescLeft"> </td><td class="mdescRight">Allocate an object. <br /></td></tr>
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<tr class="memitem:aa700df9e1184f95f0a9077b12a60a055 inherit pub_methods_classcxx_1_1Base__slab__static" id="r_aa700df9e1184f95f0a9077b12a60a055"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classcxx_1_1Base__slab__static.html#aa700df9e1184f95f0a9077b12a60a055">free</a> (void *p) noexcept</td></tr>
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<tr class="memdesc:aa700df9e1184f95f0a9077b12a60a055 inherit pub_methods_classcxx_1_1Base__slab__static"><td class="mdescLeft"> </td><td class="mdescRight">Free the given object (<span class="tt">p</span>). <br /></td></tr>
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<tr class="memitem:a50f5b49a3215d75ebd9b36c8df61d701 inherit pub_methods_classcxx_1_1Base__slab__static" id="r_a50f5b49a3215d75ebd9b36c8df61d701"><td class="memItemLeft" align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="classcxx_1_1Base__slab__static.html#a50f5b49a3215d75ebd9b36c8df61d701">total_objects</a> () const noexcept</td></tr>
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<tr class="memdesc:a50f5b49a3215d75ebd9b36c8df61d701 inherit pub_methods_classcxx_1_1Base__slab__static"><td class="mdescLeft"> </td><td class="mdescRight">Get the total number of objects managed by the slab allocator. <br /></td></tr>
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<tr class="memitem:ae4e9ba5f0a72964c5ea8bf12d05d89f9 inherit pub_methods_classcxx_1_1Base__slab__static" id="r_ae4e9ba5f0a72964c5ea8bf12d05d89f9"><td class="memItemLeft" align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="classcxx_1_1Base__slab__static.html#ae4e9ba5f0a72964c5ea8bf12d05d89f9">free_objects</a> () const noexcept</td></tr>
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<tr class="memdesc:ae4e9ba5f0a72964c5ea8bf12d05d89f9 inherit pub_methods_classcxx_1_1Base__slab__static"><td class="mdescLeft"> </td><td class="mdescRight">Get the number of free objects in the slab allocator. <br /></td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-inherited" class="groupheader"><a id="inherited" name="inherited"></a>
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Additional Inherited Members</h2></td></tr>
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<tr class="inherit_header pub_types_classcxx_1_1Base__slab__static"><td colspan="2" onclick="javascript:dynsection.toggleInherit('pub_types_classcxx_1_1Base__slab__static')"><span class="dynarrow"><span class="arrowhead closed"></span></span>Public Types inherited from <a class="el" href="classcxx_1_1Base__slab__static.html">cxx::Base_slab_static< sizeof(Type), L4_PAGESIZE, 2, New_allocator ></a></td></tr>
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</table>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
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<div class="textblock"><div class="compoundTemplParams">template<typename Type, int Slab_size = L4_PAGESIZE, int Max_free = 2, template< typename A > class Alloc = New_allocator><br />
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class cxx::Slab_static< Type, Slab_size, Max_free, Alloc ></div><p>Merged slab allocator (allocators for objects of the same size are merged together). </p>
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<dl class="tparams"><dt>Template Parameters</dt><dd>
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<table class="tparams">
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<tr><td class="paramname">Type</td><td>The type of the objects to manage. </td></tr>
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<tr><td class="paramname">Slab_size</td><td>The size of a slab. </td></tr>
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<tr><td class="paramname">Max_free</td><td>The maximum number of free slabs. </td></tr>
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<tr><td class="paramname">Alloc</td><td>The allocator for the slabs.</td></tr>
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</table>
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</dd>
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</dl>
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<p>This slab allocator class is useful for merging slab allocators with the same parameters (equal <span class="tt">sizeof(Type)</span>, <span class="tt">Slab_size</span>, <span class="tt">Max_free</span>, and <span class="tt">Alloc</span> parameters) together and share the overhead for the slab caches among all equal-sized objects. </p>
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<p class="definition">Definition at line <a class="el" href="slab__alloc_source.html#l00465">465</a> of file <a class="el" href="slab__alloc_source.html">slab_alloc</a>.</p>
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</div><a name="doc-func-members" id="doc-func-members"></a><h2 id="header-doc-func-members" class="groupheader">Member Function Documentation</h2>
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<a id="ac32de50ae84bfb0cad8b4e12ebdcbdec" name="ac32de50ae84bfb0cad8b4e12ebdcbdec"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ac32de50ae84bfb0cad8b4e12ebdcbdec">◆ </a></span>alloc()</h2>
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<div class="memtemplate">
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template<typename Type, int Slab_size = L4_PAGESIZE, int Max_free = 2, template< typename A > class Alloc = New_allocator> </div>
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<td class="memname">Type * <a class="el" href="classcxx_1_1Slab__static.html">cxx::Slab_static</a>< Type, Slab_size, Max_free, Alloc >::alloc </td>
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<td>(</td>
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<td class="paramname"><span class="paramname"><em></em></span></td><td>)</td>
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<td></td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel inline">inline</span><span class="mlabel noexcept">noexcept</span></span> </td>
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</div><div class="memdoc">
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<p>Allocate an object of type <span class="tt">Type</span>. </p>
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<dl class="section return"><dt>Returns</dt><dd>A pointer to the just allocated object, or 0 on failure.</dd></dl>
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<dl class="section note"><dt>Note</dt><dd>The object is not zeroed out by the slab allocator. </dd></dl>
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<p class="definition">Definition at line <a class="el" href="slab__alloc_source.html#l00478">478</a> of file <a class="el" href="slab__alloc_source.html">slab_alloc</a>.</p>
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<p class="reference">References <a class="el" href="slab__alloc_source.html#l00478">alloc()</a>.</p>
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<p class="reference">Referenced by <a class="el" href="slab__alloc_source.html#l00478">alloc()</a>.</p>
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<div id="dynsection-2" onclick="return dynsection.toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"><span class="dynarrow"><span class="arrowhead closed"></span></span>Here is the call graph for this function:</div>
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<div class="center"><iframe scrolling="no" loading="lazy" frameborder="0" src="classcxx_1_1Slab__static_ac32de50ae84bfb0cad8b4e12ebdcbdec_cgraph.svg" width="174" height="60"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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<div class="center"><iframe scrolling="no" loading="lazy" frameborder="0" src="classcxx_1_1Slab__static_ac32de50ae84bfb0cad8b4e12ebdcbdec_icgraph.svg" width="174" height="60"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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</div>
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<hr/>The documentation for this class was generated from the following file:<ul>
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<li>l4/cxx/<a class="el" href="slab__alloc_source.html">slab_alloc</a></li>
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<li class="navelem"><a href="namespacecxx.html">cxx</a></li><li class="navelem"><a href="classcxx_1_1Slab__static.html">Slab_static</a></li>
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<li class="footer">Generated on <span class="timestamp"></span> for L4Re Operating System Framework by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.15.0 </li>
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