00001 /* 00002 * Copyright 1999-2004 The Apache Software Foundation. 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #if !defined(XALANALLOCATOR_INCLUDE_GUARD_1357924680) 00018 #define XALANALLOCATOR_INCLUDE_GUARD_1357924680 00019 00020 00021 00022 #include <cstddef> 00023 00024 00025 00026 XALAN_CPP_NAMESPACE_BEGIN 00027 00028 00029 00030 template <class Type> 00031 class XalanAllocator 00032 { 00033 public: 00034 typedef size_t size_type; 00035 typedef ptrdiff_t difference_type; 00036 typedef Type* pointer; 00037 typedef const Type* const_pointer; 00038 typedef Type& reference; 00039 typedef const Type& const_reference; 00040 typedef Type value_type; 00041 00042 00043 XalanAllocator(MemoryManagerType& theManager) : 00044 m_memoryManager(theManager) 00045 { 00046 } 00047 00048 00049 ~XalanAllocator() 00050 { 00051 } 00052 00053 MemoryManagerType& 00054 getMemoryManager() 00055 { 00056 return m_memoryManager; 00057 } 00058 00059 pointer 00060 address(reference x) const 00061 { 00062 return &x; 00063 } 00064 00065 const_pointer 00066 address(const_reference x) const 00067 { 00068 return &x; 00069 } 00070 00071 pointer 00072 allocate( 00073 size_type size, 00074 const void* /* hint */ = 0) 00075 { 00076 return (pointer)m_memoryManager.allocate(size * sizeof(Type)); 00077 } 00078 00079 void 00080 deallocate( 00081 pointer p, 00082 size_type /* n */) 00083 { 00084 if( p == 0 ) 00085 { 00086 return; 00087 } 00088 00089 m_memoryManager.deallocate(p); 00090 } 00091 00092 size_type 00093 max_size() const 00094 { 00095 return ~0; 00096 } 00097 00098 void 00099 construct( 00100 pointer p, 00101 const Type& val) 00102 { 00103 new (p) Type(val); 00104 } 00105 00106 void 00107 destroy(pointer p) 00108 { 00109 p->Type::~Type(); 00110 } 00111 00112 private: 00113 XalanAllocator(const XalanAllocator<Type>&); 00114 00115 XalanAllocator<Type>& 00116 operator=(const XalanAllocator<Type>&); 00117 00118 MemoryManagerType& m_memoryManager; 00119 }; 00120 00121 00122 00123 XALAN_CPP_NAMESPACE_END 00124 00125 00126 00127 #endif // XALANALLOCATOR_INCLUDE_GUARD_1357924680
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