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(XERCESWRAPPERNAVIGATORALLOCATOR_INCLUDE_GUARD_12455133) 00020 #define XERCESWRAPPERNAVIGATORALLOCATOR_INCLUDE_GUARD_12455133 00021 00022 00023 00024 #include <xalanc/XercesParserLiaison/XercesParserLiaisonDefinitions.hpp> 00025 00026 00027 00028 #include <xalanc/PlatformSupport/ArenaAllocator.hpp> 00029 00030 00031 00032 #include <xalanc/XercesParserLiaison/XercesWrapperNavigator.hpp> 00033 00034 00035 00036 XALAN_CPP_NAMESPACE_BEGIN 00037 00038 00039 00040 class XALAN_XERCESPARSERLIAISON_EXPORT XercesWrapperNavigatorAllocator 00041 { 00042 public: 00043 00044 typedef XercesWrapperNavigator ObjectType; 00045 00046 #if defined(XALAN_NO_DEFAULT_TEMPLATE_ARGUMENTS) 00047 typedef ArenaBlock<ObjectType> ArenaBlockType; 00048 00049 typedef ArenaAllocator<ObjectType, 00050 ArenaBlockType> ArenaAllocatorType; 00051 #else 00052 typedef ArenaAllocator<ObjectType> 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 XercesWrapperNavigatorAllocator(MemoryManager& theManager, 00063 size_type theBlockCount); 00064 00065 ~XercesWrapperNavigatorAllocator(); 00066 00067 /** 00068 * Create a XercesWrapperNavigator instance. 00069 * 00070 * @param theOwnerDocument The XercesDocumentWrappter instance for this instance. 00071 * 00072 * @return pointer to the instance 00073 */ 00074 ObjectType* 00075 create(XercesDocumentWrapper* theOwnerDocument); 00076 00077 /** 00078 * Delete all objects from allocator. 00079 */ 00080 void 00081 reset(); 00082 00083 /** 00084 * Get size of an ArenaBlock, that is, the number 00085 * of objects in each block. 00086 * 00087 * @return The size of the block 00088 */ 00089 size_type 00090 getBlockCount() const 00091 { 00092 return m_allocator.getBlockCount(); 00093 } 00094 00095 /** 00096 * Get the number of ArenaBlocks currently allocated. 00097 * 00098 * @return The number of blocks. 00099 */ 00100 size_type 00101 getBlockSize() const 00102 { 00103 return m_allocator.getBlockSize(); 00104 } 00105 00106 private: 00107 00108 // Not implemented... 00109 XercesWrapperNavigatorAllocator(const XercesWrapperNavigatorAllocator&); 00110 00111 XercesWrapperNavigatorAllocator& 00112 operator=(const XercesWrapperNavigatorAllocator&); 00113 00114 // Data members... 00115 ArenaAllocatorType m_allocator; 00116 }; 00117 00118 00119 00120 XALAN_CPP_NAMESPACE_END 00121 00122 00123 00124 #endif // XERCESWRAPPERNAVIGATORALLOCATOR_INCLUDE_GUARD_12455133
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