[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: MemoryManager.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(MEMORYMANAGER_HPP) |
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| 24 | #define MEMORYMANAGER_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 | |
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| 30 | XERCES_CPP_NAMESPACE_BEGIN |
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| 31 | |
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| 32 | |
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| 33 | /** |
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| 34 | * Configurable memory manager |
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| 35 | * |
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| 36 | * <p>This interface allows outside applications to plug in their own memory |
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| 37 | * manager to be used by Xerces for memory allocation/deallocation.</p> |
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| 38 | */ |
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| 39 | class XMLPARSER_EXPORT MemoryManager |
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| 40 | { |
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| 41 | public: |
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| 42 | // ----------------------------------------------------------------------- |
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| 43 | // Constructors are hidden, only the virtual destructor is exposed |
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| 44 | // ----------------------------------------------------------------------- |
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| 45 | |
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| 46 | /** @name Destructor */ |
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| 47 | //@{ |
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| 48 | |
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| 49 | /** |
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| 50 | * Default destructor |
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| 51 | */ |
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| 52 | virtual ~MemoryManager() |
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| 53 | { |
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| 54 | } |
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| 55 | //@} |
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| 56 | |
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| 57 | |
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| 58 | // ----------------------------------------------------------------------- |
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| 59 | // The virtual memory manager interface |
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| 60 | // ----------------------------------------------------------------------- |
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| 61 | /** @name The pure virtual methods in this interface. */ |
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| 62 | //@{ |
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| 63 | |
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| 64 | /** |
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| 65 | * This method allocates requested memory. |
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| 66 | * |
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| 67 | * @param size The requested memory size |
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| 68 | * |
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| 69 | * @return A pointer to the allocated memory |
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| 70 | */ |
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| 71 | virtual void* allocate(size_t size) = 0; |
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| 72 | |
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| 73 | /** |
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| 74 | * This method deallocates memory |
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| 75 | * |
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| 76 | * @param p The pointer to the allocated memory to be deleted |
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| 77 | */ |
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| 78 | virtual void deallocate(void* p) = 0; |
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| 79 | |
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| 80 | //@} |
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| 81 | |
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| 82 | |
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| 83 | protected : |
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| 84 | // ----------------------------------------------------------------------- |
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| 85 | // Hidden Constructors |
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| 86 | // ----------------------------------------------------------------------- |
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| 87 | /** @name Constructor */ |
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| 88 | //@{ |
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| 89 | |
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| 90 | /** |
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| 91 | * Protected default constructor |
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| 92 | */ |
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| 93 | MemoryManager() |
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| 94 | { |
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| 95 | } |
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| 96 | //@} |
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| 97 | |
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| 98 | |
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| 99 | |
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| 100 | private: |
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| 101 | // ----------------------------------------------------------------------- |
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| 102 | // Unimplemented constructors and operators |
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| 103 | // ----------------------------------------------------------------------- |
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| 104 | MemoryManager(const MemoryManager&); |
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| 105 | MemoryManager& operator=(const MemoryManager&); |
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| 106 | }; |
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| 107 | |
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| 108 | XERCES_CPP_NAMESPACE_END |
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| 109 | |
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| 110 | #endif |
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