00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one 00003 * or more contributor license agreements. See the NOTICE file 00004 * distributed with this work for additional information 00005 * regarding copyright ownership. The ASF licenses this file 00006 * to you under the Apache License, Version 2.0 (the "License"); 00007 * you may not use this file except in compliance with the License. 00008 * You may obtain a copy of the License at 00009 * 00010 * http://www.apache.org/licenses/LICENSE-2.0 00011 * 00012 * Unless required by applicable law or agreed to in writing, software 00013 * distributed under the License is distributed on an "AS IS" BASIS, 00014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00015 * See the License for the specific language governing permissions and 00016 * limitations under the License. 00017 */ 00018 00019 #if !defined(XALANELEMTEXTALLOCATOR_INCLUDE_GUARD_12455133) 00020 #define XALANELEMTEXTALLOCATOR_INCLUDE_GUARD_12455133 00021 00022 00023 00024 // Base include file. Must be first. 00025 #include <xalanc/XSLT/XSLTDefinitions.hpp> 00026 00027 00028 00029 #include <xalanc/XSLT/ElemText.hpp> 00030 00031 00032 00033 #include <xalanc/PlatformSupport/ReusableArenaAllocator.hpp> 00034 00035 00036 00037 XALAN_CPP_NAMESPACE_BEGIN 00038 00039 00040 00041 class XALAN_XSLT_EXPORT XalanElemTextAllocator 00042 { 00043 public: 00044 00045 typedef ElemText data_type; 00046 00047 typedef ReusableArenaAllocator<data_type> ArenaAllocatorType; 00048 00049 typedef ArenaAllocatorType::size_type size_type; 00050 00051 /** 00052 * Construct an instance that will allocate blocks of the specified size. 00053 * 00054 * @param theBlockSize The block size. 00055 */ 00056 XalanElemTextAllocator( 00057 MemoryManager& theManager, 00058 size_type theBlockCount); 00059 00060 ~XalanElemTextAllocator(); 00061 00062 /** 00063 * Construct an instance 00064 * 00065 * @param constructionContext The current construction context 00066 * @param stylesheetTree The stylesheet containing element 00067 * @param atts The list of attributes for the element 00068 * @param lineNumber The line number in the document 00069 * @param columnNumber The column number in the document 00070 * 00071 * @return A pointer to the new instance. 00072 */ 00073 data_type* 00074 create( 00075 StylesheetConstructionContext& constructionContext, 00076 Stylesheet& stylesheetTree, 00077 const AttributeListType& atts, 00078 XalanFileLoc lineNumber, 00079 XalanFileLoc columnNumber); 00080 00081 /** 00082 * Destroy an instance previously created. 00083 * 00084 * @param theObject A pointer to the instance to destroy. 00085 * 00086 * @return true if the instance was destroyed, false if not. 00087 */ 00088 bool 00089 destroy(data_type* theObject) 00090 { 00091 return m_allocator.destroyObject(theObject); 00092 } 00093 00094 /** 00095 * Determine if an object is owned by the allocator... 00096 */ 00097 bool 00098 ownsObject(const data_type* theObject) 00099 { 00100 return m_allocator.ownsObject(theObject); 00101 } 00102 00103 /** 00104 * Delete all objects from the allocator. 00105 */ 00106 void 00107 reset() 00108 { 00109 m_allocator.reset(); 00110 } 00111 00112 /** 00113 * Get the number of ArenaBlocks currently allocated. 00114 * 00115 * @return The number of blocks. 00116 */ 00117 size_type 00118 getBlockCount() const 00119 { 00120 return m_allocator.getBlockCount(); 00121 } 00122 00123 /** 00124 * Get size of an ArenaBlock, that is, the number 00125 * of objects in each block. 00126 * 00127 * @return The size of the block 00128 */ 00129 size_type 00130 getBlockSize() const 00131 { 00132 return m_allocator.getBlockSize(); 00133 } 00134 00135 private: 00136 00137 // Not implemented... 00138 XalanElemTextAllocator(const XalanElemTextAllocator&); 00139 00140 XalanElemTextAllocator& 00141 operator=(const XalanElemTextAllocator&); 00142 00143 // Data members... 00144 ArenaAllocatorType m_allocator; 00145 }; 00146 00147 00148 00149 XALAN_CPP_NAMESPACE_END 00150 00151 00152 00153 #endif // XALANELEMTEXTALLOCATOR_INCLUDE_GUARD_12455133
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