[2674] | 1 | /* |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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| 3 | * contributor license agreements. See the NOTICE file distributed with |
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| 4 | * this work for additional information regarding copyright ownership. |
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| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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| 6 | * (the "License"); you may not use this file except in compliance with |
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| 7 | * the License. You may obtain a copy of the License at |
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| 8 | * |
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| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 10 | * |
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| 11 | * Unless required by applicable law or agreed to in writing, software |
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| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 14 | * See the License for the specific language governing permissions and |
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| 15 | * limitations under the License. |
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| 16 | */ |
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| 17 | |
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| 18 | /* |
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| 19 | * $Id: XMemory.hpp 568078 2007-08-21 11:43:25Z amassari $ |
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| 20 | */ |
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| 21 | |
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| 22 | |
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| 23 | #if !defined(XMEMORY_HPP) |
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| 24 | #define XMEMORY_HPP |
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| 25 | |
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| 26 | #include <xercesc/util/XercesDefs.hpp> |
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| 27 | #include <stdlib.h> |
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| 28 | |
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| 29 | XERCES_CPP_NAMESPACE_BEGIN |
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| 30 | |
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| 31 | class MemoryManager; |
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| 32 | |
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| 33 | /** |
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| 34 | * This class makes it possible to override the C++ memory management by |
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| 35 | * adding new/delete operators to this base class. |
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| 36 | * |
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| 37 | * This class is used in conjuction with the pluggable memory manager. It |
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| 38 | * allows applications to control Xerces memory management. |
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| 39 | */ |
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| 40 | |
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| 41 | class XMLUTIL_EXPORT XMemory |
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| 42 | { |
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| 43 | public : |
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| 44 | // ----------------------------------------------------------------------- |
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| 45 | // The C++ memory management |
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| 46 | // ----------------------------------------------------------------------- |
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| 47 | /** @name The C++ memory management */ |
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| 48 | //@{ |
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| 49 | |
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| 50 | /** |
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| 51 | * This method overrides operator new |
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| 52 | * |
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| 53 | * @param size The requested memory size |
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| 54 | */ |
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| 55 | void* operator new(size_t size); |
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| 56 | |
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| 57 | #if defined(XML_VISUALCPP) |
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| 58 | /** |
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| 59 | * This method overrides the MFC debug version of the operator new |
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| 60 | * |
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| 61 | * @param size The requested memory size |
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| 62 | * @param file The file where the allocation was requested |
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| 63 | * @param line The line where the allocation was requested |
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| 64 | */ |
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| 65 | void* operator new(size_t size, const char* file, int line); |
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| 66 | /** |
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| 67 | * This method provides a matching delete for the MFC debug new |
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| 68 | * |
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| 69 | * @param p The pointer to the allocated memory |
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| 70 | * @param file The file where the allocation was requested |
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| 71 | * @param line The line where the allocation was requested |
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| 72 | */ |
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| 73 | void operator delete(void* p, const char* file, int line); |
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| 74 | #endif |
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| 75 | |
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| 76 | /** |
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| 77 | * This method defines a custom operator new, that will use the provided |
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| 78 | * memory manager to perform the allocation |
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| 79 | * |
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| 80 | * @param size The requested memory size |
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| 81 | * @param memMgr An application's memory manager |
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| 82 | */ |
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| 83 | void* operator new(size_t size, MemoryManager* memMgr); |
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| 84 | |
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| 85 | /** |
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| 86 | * This method overrides placement operator new |
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| 87 | * |
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| 88 | * @param size The requested memory size |
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| 89 | * @param ptr The memory location where the object should be allocated |
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| 90 | */ |
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| 91 | void* operator new(size_t size, void* ptr); |
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| 92 | |
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| 93 | /** |
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| 94 | * This method overrides operator delete |
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| 95 | * |
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| 96 | * @param p The pointer to the allocated memory |
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| 97 | */ |
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| 98 | void operator delete(void* p); |
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| 99 | |
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| 100 | //The Borland compiler is complaining about duplicate overloading of delete |
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| 101 | #if !defined(XML_BORLAND) |
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| 102 | /** |
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| 103 | * This method provides a matching delete for the custom operator new |
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| 104 | * |
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| 105 | * @param p The pointer to the allocated memory |
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| 106 | * @param memMgr An application's memory manager |
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| 107 | */ |
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| 108 | void operator delete(void* p, MemoryManager* memMgr); |
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| 109 | |
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| 110 | /** |
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| 111 | * This method provides a matching delete for the placement new |
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| 112 | * |
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| 113 | * @param p The pointer to the allocated memory |
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| 114 | * @param ptr The memory location where the object had to be allocated |
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| 115 | */ |
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| 116 | void operator delete(void* p, void* ptr); |
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| 117 | #endif |
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| 118 | |
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| 119 | //@} |
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| 120 | |
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| 121 | protected : |
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| 122 | // ----------------------------------------------------------------------- |
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| 123 | // Hidden Constructors |
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| 124 | // ----------------------------------------------------------------------- |
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| 125 | /** @name Constructor */ |
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| 126 | //@{ |
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| 127 | |
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| 128 | /** |
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| 129 | * Protected default constructor |
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| 130 | */ |
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| 131 | XMemory() |
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| 132 | { |
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| 133 | } |
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| 134 | //@} |
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| 135 | |
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| 136 | #if defined(XML_BORLAND) |
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| 137 | virtual ~XMemory() |
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| 138 | { |
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| 139 | } |
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| 140 | #endif |
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| 141 | |
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| 142 | }; |
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| 143 | |
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| 144 | XERCES_CPP_NAMESPACE_END |
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| 145 | |
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| 146 | #endif |
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