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<h1>sharelib/DefaultAllocator.h</h1><a href="DefaultAllocator_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef DEFAULT_ALLOCATOR_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define DEFAULT_ALLOCATOR_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00012"></a>00012 <span class="preprocessor">#include "<a class="code" href="sharelib_8h.html" title="Share library interface.">sharelib.h</a>"</span>
<a name="l00013"></a>00013
<a name="l00019"></a><a class="code" href="group__backend.html#g29a6f4bde0ada26e8614a89d218da1a6">00019</a> <span class="preprocessor">#define BITS_ALIGNMENT 8</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a><a class="code" href="namespaceShare.html">00021</a> <span class="keyword">namespace </span>Share {
<a name="l00029"></a>00029 <span class="keyword">template</span> <
<a name="l00030"></a>00030 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> bitsAlignment,
<a name="l00031"></a>00031 <span class="keyword">typename</span> T >
<a name="l00032"></a><a class="code" href="group__backend.html#g0bf9356c8f3e57840a77634de35700f7">00032</a> T <a class="code" href="group__backend.html#g0bf9356c8f3e57840a77634de35700f7" title="Generic number alignmenter.">genericAlignmenter</a> (T input)
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 <span class="keywordflow">return</span>
<a name="l00035"></a>00035 (
<a name="l00036"></a>00036 ((1 << bitsAlignment) - 1) |
<a name="l00037"></a>00037 (input - 1)
<a name="l00038"></a>00038 ) + 1;
<a name="l00039"></a>00039 }
<a name="l00040"></a>00040
<a name="l00047"></a>00047 <span class="keyword">template</span> <<span class="keyword">typename</span> T>
<a name="l00048"></a><a class="code" href="group__backend.html#g0f1b9f81dfb6c7d9e490c7ae0b49e728">00048</a> <span class="keyword">inline</span> T <a class="code" href="group__backend.html#g0f1b9f81dfb6c7d9e490c7ae0b49e728" title="Number alignmenter using BITS_ALIGNMENT macro.">alignmenter</a> (T input) {
<a name="l00049"></a>00049 <span class="keywordflow">return</span> genericAlignmenter <BITS_ALIGNMENT, T> (input);
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051
<a name="l00057"></a><a class="code" href="classShare_1_1DefaultAllocator.html">00057</a> <span class="keyword">class </span><a class="code" href="classShare_1_1DefaultAllocator.html" title="Allocator for blocks inside shared segment.">DefaultAllocator</a><span class="comment">/*: public AbstractAllocator*/</span> {
<a name="l00058"></a>00058 <span class="keyword">public</span>:
<a name="l00062"></a><a class="code" href="classShare_1_1DefaultAllocator.html#abaf63bc7994d9859c385babf48b272f">00062</a> <span class="keyword">typedef</span> <a class="code" href="classShare_1_1RelocPtr.html" title="Relocable pointer type.">RelocPtr<char></a> <a class="code" href="classShare_1_1RelocPtr.html" title="Relocable pointer type.">TRelocPtr</a>;
<a name="l00063"></a>00063
<a name="l00070"></a>00070 <a class="code" href="classShare_1_1DefaultAllocator.html#abf3fd98c7fe77afc7cec21defd021dc">DefaultAllocator</a>(<span class="keywordtype">void</span> *atAddr, <span class="keywordtype">size_t</span> segmentHeaderSize, <span class="keywordtype">size_t</span> dataSize) <span class="keywordflow">throw</span> (<a class="code" href="classShare_1_1ShareException.html" title="General exception carrying text message inside.">ShareException</a>);
<a name="l00071"></a>00071 <a class="code" href="classShare_1_1DefaultAllocator.html#522147a4a6142b251cd5d772604c64b2">~DefaultAllocator</a>();
<a name="l00072"></a>00072
<a name="l00078"></a>00078 <span class="keyword">static</span> <span class="keywordtype">size_t</span> <a class="code" href="classShare_1_1DefaultAllocator.html#a8d55c0df3d57c6741fa89105d6f3e2a">sizeNeeded</a> (<span class="keywordtype">size_t</span> segmentHeaderSize, <span class="keywordtype">size_t</span> dataSize);
<a name="l00079"></a>00079
<a name="l00086"></a>00086 <span class="keywordtype">void</span> *<a class="code" href="classShare_1_1DefaultAllocator.html#480fa43d32d40f9fbba2184bb61d91e2">alloc</a> (<span class="keywordtype">size_t</span> <a class="code" href="classShare_1_1DefaultAllocator.html#8bacc667e8a91c90e3a21e691b51b308">size</a>) <span class="keywordflow">throw</span> (<a class="code" href="classShare_1_1ShareException.html" title="General exception carrying text message inside.">ShareException</a>);
<a name="l00087"></a>00087
<a name="l00093"></a>00093 <span class="keywordtype">void</span> <a class="code" href="classShare_1_1DefaultAllocator.html#865bb4bc2291ab354c7068e55c89005d">free</a> (<span class="keywordtype">void</span> *addr) <span class="keywordflow">throw</span> ();
<a name="l00094"></a>00094
<a name="l00099"></a>00099 <span class="keywordtype">size_t</span> <a class="code" href="classShare_1_1DefaultAllocator.html#8bacc667e8a91c90e3a21e691b51b308">size</a>();
<a name="l00100"></a>00100
<a name="l00104"></a>00104 <span class="keywordtype">size_t</span> <a class="code" href="classShare_1_1DefaultAllocator.html#86089e8d35253e32dfb9faf21d5376ea">available</a>();
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keyword">private</span>:
<a name="l00107"></a>00107 <a class="code" href="classShare_1_1DefaultAllocator.html#abf3fd98c7fe77afc7cec21defd021dc">DefaultAllocator</a> (<span class="keyword">const</span> <a class="code" href="classShare_1_1DefaultAllocator.html" title="Allocator for blocks inside shared segment.">DefaultAllocator</a>&);
<a name="l00108"></a>00108 <span class="keywordtype">void</span> operator= (<span class="keyword">const</span> <a class="code" href="classShare_1_1DefaultAllocator.html" title="Allocator for blocks inside shared segment.">DefaultAllocator</a>&);
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="keyword">private</span>:
<a name="l00111"></a>00111 <span class="keywordtype">size_t</span> size_;
<a name="l00112"></a>00112 <span class="keywordtype">size_t</span> available_;
<a name="l00113"></a>00113 <a class="code" href="classShare_1_1RelocPtr.html" title="Relocable pointer type.">TRelocPtr</a> current_;
<a name="l00114"></a>00114 };
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="preprocessor">#endif // DEFAULT_ALLOCATOR_H</span>
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