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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