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(XALANSOURCETREEATTRIBUTEALLOCATOR_INCLUDE_GUARD_12455133) 00020 #define XALANSOURCETREEATTRIBUTEALLOCATOR_INCLUDE_GUARD_12455133 00021 00022 00023 00024 #include <xalanc/XalanSourceTree/XalanSourceTreeDefinitions.hpp> 00025 00026 00027 00028 #include <xalanc/PlatformSupport/ArenaAllocator.hpp> 00029 00030 00031 00032 #include <xalanc/XalanSourceTree/XalanSourceTreeAttr.hpp> 00033 00034 00035 00036 XALAN_CPP_NAMESPACE_BEGIN 00037 00038 00039 00040 class XALAN_XALANSOURCETREE_EXPORT XalanSourceTreeAttributeAllocator 00041 { 00042 public: 00043 00044 typedef XalanSourceTreeAttr ObjectType; 00045 00046 typedef ObjectType::IndexType IndexType; 00047 00048 #if defined(XALAN_NO_DEFAULT_TEMPLATE_ARGUMENTS) 00049 typedef ArenaBlock<ObjectType> ArenaBlockType; 00050 00051 typedef ArenaAllocator<ObjectType, 00052 ArenaBlockType> ArenaAllocatorType; 00053 #else 00054 typedef ArenaAllocator<ObjectType> ArenaAllocatorType; 00055 #endif 00056 00057 typedef ArenaAllocatorType::size_type size_type; 00058 00059 /** 00060 * Construct an instance that will allocate blocks of the specified size. 00061 * 00062 * @param theBlockSize The block size. 00063 */ 00064 XalanSourceTreeAttributeAllocator(MemoryManager& theManager, size_type theBlockCount); 00065 00066 ~XalanSourceTreeAttributeAllocator(); 00067 00068 /** 00069 * Create an instance. 00070 * 00071 * @param theName The name of the attribute 00072 * @param theValue The value of the attribute 00073 * @param theOwnerDocument The document that owns the instance 00074 * @param theOwnerElement The element that owns the instance 00075 * @param theIndex The document-order index of the node. 00076 * 00077 * @return pointer to the instance 00078 */ 00079 ObjectType* 00080 create( 00081 const XalanDOMString& theName, 00082 const XalanDOMString& theValue, 00083 XalanSourceTreeElement* theOwnerElement = 0, 00084 IndexType theIndex = 0); 00085 00086 /** 00087 * Delete all objects from allocator. 00088 */ 00089 void 00090 reset(); 00091 00092 /** 00093 * Get size of an ArenaBlock, that is, the number 00094 * of objects in each block. 00095 * 00096 * @return The size of the block 00097 */ 00098 size_type 00099 getBlockCount() const 00100 { 00101 return m_allocator.getBlockCount(); 00102 } 00103 00104 /** 00105 * Get the number of ArenaBlocks currently allocated. 00106 * 00107 * @return The number of blocks. 00108 */ 00109 size_type 00110 getBlockSize() const 00111 { 00112 return m_allocator.getBlockSize(); 00113 } 00114 00115 private: 00116 00117 // Not implemented... 00118 XalanSourceTreeAttributeAllocator(const XalanSourceTreeAttributeAllocator&); 00119 00120 XalanSourceTreeAttributeAllocator& 00121 operator=(const XalanSourceTreeAttributeAllocator&); 00122 00123 // Data members... 00124 ArenaAllocatorType m_allocator; 00125 }; 00126 00127 00128 00129 XALAN_CPP_NAMESPACE_END 00130 00131 00132 00133 #endif // XALANSOURCETREEATTRIBUTEALLOCATOR_INCLUDE_GUARD_12455133
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