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(XALANELEMELEMENTALLOCATOR_INCLUDE_GUARD_12455133) 00020 #define XALANELEMELEMENTALLOCATOR_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/ElemElement.hpp> 00030 00031 00032 00033 #include <xalanc/PlatformSupport/ArenaAllocator.hpp> 00034 00035 00036 00037 XALAN_CPP_NAMESPACE_BEGIN 00038 00039 00040 00041 class XALAN_XSLT_EXPORT XalanElemElementAllocator 00042 { 00043 public: 00044 00045 typedef ElemElement data_type; 00046 00047 #if defined(XALAN_NO_DEFAULT_TEMPLATE_ARGUMENTS) 00048 typedef ArenaBlock<data_type> ArenaBlockType; 00049 typedef ArenaAllocator<data_type, 00050 ArenaBlockType> ArenaAllocatorType; 00051 #else 00052 typedef ArenaAllocator<data_type> ArenaAllocatorType; 00053 #endif 00054 00055 typedef ArenaAllocatorType::size_type size_type; 00056 00057 /** 00058 * Construct an instance that will allocate blocks of the specified size. 00059 * 00060 * @param theBlockSize The block size. 00061 */ 00062 XalanElemElementAllocator( 00063 MemoryManager& theManager, 00064 size_type theBlockCount); 00065 00066 ~XalanElemElementAllocator(); 00067 00068 /** 00069 * Construct an instance 00070 * 00071 * @param constructionContext context for construction of object 00072 * @param stylesheetTree stylesheet containing element 00073 * @param atts list of attributes for element 00074 * @param lineNumber line number in document 00075 * @param columnNumber column number in document 00076 * 00077 * @return A pointer to the new instance. 00078 */ 00079 data_type* 00080 create( 00081 StylesheetConstructionContext& constructionContext, 00082 Stylesheet& stylesheetTree, 00083 const AttributeListType& atts, 00084 XalanFileLoc lineNumber, 00085 XalanFileLoc columnNumber); 00086 00087 /** 00088 * Determine if an object is owned by the allocator... 00089 */ 00090 bool 00091 ownsObject(const data_type* theObject) 00092 { 00093 return m_allocator.ownsObject(theObject); 00094 } 00095 00096 /** 00097 * Delete all objects from the allocator. 00098 */ 00099 void 00100 reset() 00101 { 00102 m_allocator.reset(); 00103 } 00104 00105 /** 00106 * Get the number of ArenaBlocks currently allocated. 00107 * 00108 * @return The number of blocks. 00109 */ 00110 size_type 00111 getBlockCount() const 00112 { 00113 return m_allocator.getBlockCount(); 00114 } 00115 00116 /** 00117 * Get size of an ArenaBlock, that is, the number 00118 * of objects in each block. 00119 * 00120 * @return The size of the block 00121 */ 00122 size_type 00123 getBlockSize() const 00124 { 00125 return m_allocator.getBlockSize(); 00126 } 00127 00128 private: 00129 00130 // Not implemented... 00131 XalanElemElementAllocator(const XalanElemElementAllocator&); 00132 00133 XalanElemElementAllocator& 00134 operator=(const XalanElemElementAllocator&); 00135 00136 // Data members... 00137 ArenaAllocatorType m_allocator; 00138 }; 00139 00140 00141 00142 XALAN_CPP_NAMESPACE_END 00143 00144 00145 00146 #endif // XALANELEMELEMENTALLOCATOR_INCLUDE_GUARD_12455133
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