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| <hr><h1>ArenaBlock.hpp</h1><a href="ArenaBlock_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">/*</font> |
| 00002 <font class="comment"> * Copyright 1999-2004 The Apache Software Foundation.</font> |
| 00003 <font class="comment"> *</font> |
| 00004 <font class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</font> |
| 00005 <font class="comment"> * you may not use this file except in compliance with the License.</font> |
| 00006 <font class="comment"> * You may obtain a copy of the License at</font> |
| 00007 <font class="comment"> *</font> |
| 00008 <font class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</font> |
| 00009 <font class="comment"> *</font> |
| 00010 <font class="comment"> * Unless required by applicable law or agreed to in writing, software</font> |
| 00011 <font class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</font> |
| 00012 <font class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</font> |
| 00013 <font class="comment"> * See the License for the specific language governing permissions and</font> |
| 00014 <font class="comment"> * limitations under the License.</font> |
| 00015 <font class="comment"> */</font> |
| 00016 |
| 00017 <font class="preprocessor">#if !defined(ARENABLOCK_INCLUDE_GUARD_1357924680)</font> |
| <a name="l00018"></a><a class="code" href="ArenaBlock_8hpp.html#a0">00018</a> <font class="preprocessor"></font><font class="preprocessor">#define ARENABLOCK_INCLUDE_GUARD_1357924680</font> |
| 00019 <font class="preprocessor"></font> |
| 00020 |
| 00021 |
| 00022 <font class="preprocessor">#include <<a class="code" href="ArenaBlockBase_8hpp.html">xalanc/PlatformSupport/ArenaBlockBase.hpp</a>></font> |
| 00023 |
| 00024 |
| 00025 |
| 00026 |
| 00027 XALAN_CPP_NAMESPACE_BEGIN |
| 00028 |
| 00029 |
| 00030 <font class="keyword">template</font><<font class="keyword">class </font><a class="code" href="classXalanSourceTreeAttr.html">ObjectType</a>, |
| 00031 <font class="preprocessor">#if defined(XALAN_NO_DEFAULT_TEMPLATE_ARGUMENTS)</font> |
| 00032 <font class="preprocessor"></font> <font class="keyword">class </font>SizeType> |
| 00033 <font class="preprocessor">#else</font> |
| 00034 <font class="preprocessor"></font> <font class="keyword">class </font>SizeType = size_t> |
| 00035 #endif |
| <a name="l00036"></a><a class="code" href="classArenaBlock.html">00036</a> class <a class="code" href="classArenaBlock.html">ArenaBlock</a> : <font class="keyword">public</font> <a class="code" href="classArenaBlockBase.html">ArenaBlockBase</a><ObjectType, SizeType> |
| 00037 { |
| 00038 <font class="keyword">public</font>: |
| 00039 |
| <a name="l00040"></a><a class="code" href="classArenaBlock.html#s0">00040</a> <font class="keyword">typedef</font> <a class="code" href="classArenaBlockBase.html">ArenaBlockBase<ObjectType, SizeType></a> <a class="code" href="classstd_1_1unary__function.html">BaseClassType</a>; |
| 00041 |
| <a name="l00042"></a><a class="code" href="classArenaBlock.html#s1">00042</a> <font class="keyword">typedef</font> <a class="code" href="classArenaBlock.html">ArenaBlock<ObjectType, SizeType></a> <a class="code" href="classXalanDeque.html">ThisType</a>; |
| 00043 |
| <a name="l00044"></a><a class="code" href="classArenaBlock.html#s2">00044</a> <font class="keyword">typedef</font> <font class="keyword">typename</font> BaseClassType::size_type size_type; |
| 00045 |
| 00046 <font class="comment">/*</font> |
| 00047 <font class="comment"> * Construct an ArenaBlock of the specified size</font> |
| 00048 <font class="comment"> * of objects.</font> |
| 00049 <font class="comment"> *</font> |
| 00050 <font class="comment"> * @param theManager The memory manager instance for the block.</font> |
| 00051 <font class="comment"> * @param theBlockSize The size of the block (the number of objects it can contain).</font> |
| 00052 <font class="comment"> */</font> |
| <a name="l00053"></a><a class="code" href="classArenaBlock.html#a0">00053</a> <a class="code" href="classArenaBlock.html#a0">ArenaBlock</a>( |
| 00054 MemoryManagerType& theManager, |
| 00055 size_type theBlockSize) : |
| 00056 <a class="code" href="classstd_1_1unary__function.html">BaseClassType</a>(theManager, theBlockSize) |
| 00057 { |
| 00058 } |
| 00059 |
| <a name="l00060"></a><a class="code" href="classArenaBlock.html#a1">00060</a> <a class="code" href="classArenaBlock.html#a1">~ArenaBlock</a>()<font class="keyword"></font> |
| 00061 <font class="keyword"> </font>{ |
| 00062 assert( this->m_objectCount <= this->m_blockSize ); |
| 00063 |
| 00064 <font class="keywordflow">for</font> ( size_type i = 0; i < this->m_objectCount ; ++i ) |
| 00065 { |
| 00066 <a class="code" href="XalanMemoryManagement_8hpp.html#a10">XalanDestroy</a>(this->m_objectBlock[i]); |
| 00067 } |
| 00068 } |
| 00069 |
| 00070 <font class="keyword">static</font> <a class="code" href="classXalanDeque.html">ThisType</a>* |
| <a name="l00071"></a><a class="code" href="classArenaBlock.html#d0">00071</a> <a class="code" href="classArenaBlock.html#d0">create</a>( |
| 00072 MemoryManagerType& theManager, |
| 00073 size_type theBlockSize)<font class="keyword"></font> |
| 00074 <font class="keyword"> </font>{ |
| 00075 <a class="code" href="classXalanDeque.html">ThisType</a>* theInstance; |
| 00076 |
| 00077 <font class="keywordflow">return</font> <a class="code" href="XalanMemoryManagement_8hpp.html#a17">XalanConstruct</a>( |
| 00078 theManager, |
| 00079 theInstance, |
| 00080 theManager, |
| 00081 theBlockSize); |
| 00082 } |
| 00083 |
| 00084 <font class="comment">/*</font> |
| 00085 <font class="comment"> * Allocate a block. Once the object is constructed, you must call</font> |
| 00086 <font class="comment"> * commitAllocation().</font> |
| 00087 <font class="comment"> *</font> |
| 00088 <font class="comment"> * @return a pointer to the new block.</font> |
| 00089 <font class="comment"> */</font> |
| 00090 <a class="code" href="classXalanSourceTreeAttr.html">ObjectType</a>* |
| <a name="l00091"></a><a class="code" href="classArenaBlock.html#a2">00091</a> <a class="code" href="classArenaBlock.html#a2">allocateBlock</a>()<font class="keyword"></font> |
| 00092 <font class="keyword"> </font>{ |
| 00093 <font class="comment">// Any space left?</font> |
| 00094 <font class="keywordflow">if</font> (this->m_objectCount == this->m_blockSize) |
| 00095 { |
| 00096 <font class="keywordflow">return</font> 0; |
| 00097 } |
| 00098 <font class="keywordflow">else</font> |
| 00099 { |
| 00100 assert(this->m_objectBlock != 0); |
| 00101 |
| 00102 <font class="keywordflow">return</font> this->m_objectBlock + this->m_objectCount; |
| 00103 } |
| 00104 } |
| 00105 |
| 00106 <font class="comment">/*</font> |
| 00107 <font class="comment"> * Commit the previous allocation.</font> |
| 00108 <font class="comment"> *</font> |
| 00109 <font class="comment"> * @param theBlock the address that was returned by allocateBlock()</font> |
| 00110 <font class="comment"> */</font> |
| 00111 <font class="keywordtype">void</font> |
| 00112 <font class="preprocessor">#if defined (NDEBUG)</font> |
| 00113 <font class="preprocessor"></font> <a class="code" href="classArenaBlock.html#a3">commitAllocation</a>(<a class="code" href="classXalanSourceTreeAttr.html">ObjectType</a>* <font class="comment">/* theBlock */</font>) |
| 00114 <font class="preprocessor">#else</font> |
| <a name="l00115"></a><a class="code" href="classArenaBlock.html#a3">00115</a> <font class="preprocessor"></font> <a class="code" href="classArenaBlock.html#a3">commitAllocation</a>(<a class="code" href="classXalanSourceTreeAttr.html">ObjectType</a>* theBlock) |
| 00116 <font class="preprocessor">#endif</font> |
| 00117 <font class="preprocessor"></font> { |
| 00118 assert(theBlock == this->m_objectBlock + this->m_objectCount); |
| 00119 assert(this->m_objectCount < this->m_blockSize); |
| 00120 |
| 00121 ++this->m_objectCount; |
| 00122 } |
| 00123 |
| 00124 <font class="comment">/*</font> |
| 00125 <font class="comment"> * Determine if this block owns the specified object. Note</font> |
| 00126 <font class="comment"> * that even if the object address is within our block, this</font> |
| 00127 <font class="comment"> * call will return false if no object currently occupies the</font> |
| 00128 <font class="comment"> * block. See also ownsBlock().</font> |
| 00129 <font class="comment"> *</font> |
| 00130 <font class="comment"> * @param theObject the address of the object.</font> |
| 00131 <font class="comment"> * @return true if we own the object, false if not.</font> |
| 00132 <font class="comment"> */</font> |
| 00133 <font class="keywordtype">bool</font> |
| <a name="l00134"></a><a class="code" href="classArenaBlock.html#a4">00134</a> <a class="code" href="classArenaBlock.html#a4">ownsObject</a>(<font class="keyword">const</font> <a class="code" href="classXalanSourceTreeAttr.html">ObjectType</a>* theObject)<font class="keyword"> const</font> |
| 00135 <font class="keyword"> </font>{ |
| 00136 <font class="keywordflow">return</font> this-><a class="code" href="classArenaBlockBase.html#b2">isInBorders</a>(theObject, this->m_objectCount); |
| 00137 } |
| 00138 |
| 00139 <font class="keyword">private</font>: |
| 00140 |
| 00141 <font class="comment">// Not implemented...</font> |
| 00142 <a class="code" href="classArenaBlock.html#a0">ArenaBlock</a>(<font class="keyword">const</font> <a class="code" href="classArenaBlock.html">ArenaBlock<ObjectType, SizeType></a>&); |
| 00143 |
| 00144 <a class="code" href="classArenaBlock.html">ArenaBlock<ObjectType, SizeType></a>& |
| 00145 operator=(<font class="keyword">const</font> <a class="code" href="classArenaBlock.html">ArenaBlock<ObjectType, SizeType></a>&); |
| 00146 |
| 00147 <font class="keywordtype">bool</font> |
| 00148 <a class="code" href="ElemAttributeSet_8hpp.html#a1">operator==</a>(<font class="keyword">const</font> <a class="code" href="classArenaBlock.html">ArenaBlock<ObjectType, SizeType></a>&) <font class="keyword">const</font>; |
| 00149 }; |
| 00150 |
| 00151 |
| 00152 |
| 00153 XALAN_CPP_NAMESPACE_END |
| 00154 |
| 00155 |
| 00156 |
| 00157 <font class="preprocessor">#endif // !defined(ARENABLOCK_INCLUDE_GUARD_1357924680)</font> |
| </font></pre></div><p align="center"><a href="diagramnotes.html">Interpreting class diagrams</a></p>
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