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<title>libstdc++: __gnu_cxx::__pool_alloc_base Class Reference</title>
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<a href="#pro-types">Protected Types</a> |
<a href="#pro-methods">Protected Member Functions</a> |
<a href="#pro-static-attribs">Static Protected Attributes</a> </div>
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<div class="title">__gnu_cxx::__pool_alloc_base Class Reference</div> </div>
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<!-- doxytag: class="__gnu_cxx::__pool_alloc_base" -->
<p>Base class for <a class="el" href="a00014.html" title="Allocator using a memory pool with a single lock.">__pool_alloc</a>.
<a href="a00015.html#details">More...</a></p>
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Inheritance diagram for __gnu_cxx::__pool_alloc_base:</div>
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<div class="center"><img src="a01399.png" border="0" usemap="#____gnu__cxx_1_1____pool__alloc__base_inherit__map" alt="Inheritance graph"/></div>
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<p><a href="a01400.html">List of all members.</a></p>
<h2><a name="pro-types"></a>
Protected Types</h2>
<ul>
<li>enum { <b>_S_align</b>
}
<li>enum { <b>_S_max_bytes</b>
}
<li>enum { <b>_S_free_list_size</b>
}
</ul>
<h2><a name="pro-methods"></a>
Protected Member Functions</h2>
<ul>
<li><a class="anchor" id="a437ebec364f2b71def39561c0f445c88"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_M_allocate_chunk" ref="a437ebec364f2b71def39561c0f445c88" args="(size_t __n, int &__nobjs)" -->
char * <b>_M_allocate_chunk</b> (size_t __n, int &__nobjs)
<li><a class="anchor" id="a25fba084d4edbeb081f7ec4f66d34874"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_M_get_free_list" ref="a25fba084d4edbeb081f7ec4f66d34874" args="(size_t __bytes)" -->
_Obj *volatile <b>_M_get_free_list</b> (size_t __bytes) throw ()
<li><a class="anchor" id="a2a11cb1cb0a7b02698302e85bf7c5605"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_M_get_mutex" ref="a2a11cb1cb0a7b02698302e85bf7c5605" args="()" -->
__mutex & <b>_M_get_mutex</b> () throw ()
<li><a class="anchor" id="a79b8ac714623beecdb16a0183a4ddb8a"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_M_refill" ref="a79b8ac714623beecdb16a0183a4ddb8a" args="(size_t __n)" -->
void * <b>_M_refill</b> (size_t __n)
<li><a class="anchor" id="a36737e4e3f026a1cf9330a843e8db9e0"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_M_round_up" ref="a36737e4e3f026a1cf9330a843e8db9e0" args="(size_t __bytes)" -->
size_t <b>_M_round_up</b> (size_t __bytes)
</ul>
<h2><a name="pro-static-attribs"></a>
Static Protected Attributes</h2>
<ul>
<li><a class="anchor" id="aaa9fb068ac117f64abf3c41ea23a56fe"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_S_end_free" ref="aaa9fb068ac117f64abf3c41ea23a56fe" args="" -->
static char * <b>_S_end_free</b>
<li><a class="anchor" id="a3221bb47712a4226c92c201c2a01aee8"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_S_free_list" ref="a3221bb47712a4226c92c201c2a01aee8" args="[_S_free_list_size]" -->
static _Obj *volatile <b>_S_free_list</b> [_S_free_list_size]
<li><a class="anchor" id="a3241fb6d3d570a0eefeb77b634f5251c"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_S_heap_size" ref="a3241fb6d3d570a0eefeb77b634f5251c" args="" -->
static size_t <b>_S_heap_size</b>
<li><a class="anchor" id="a120f643bfb41aedd3e591840e8910784"></a><!-- doxytag: member="__gnu_cxx::__pool_alloc_base::_S_start_free" ref="a120f643bfb41aedd3e591840e8910784" args="" -->
static char * <b>_S_start_free</b>
</ul>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Base class for <a class="el" href="a00014.html" title="Allocator using a memory pool with a single lock.">__pool_alloc</a>. </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="a00976_source.html#l00076">76</a> of file <a class="el" href="a00976_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="a00976_source.html">pool_allocator.h</a></li>
</ul>
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