[358] | 1 | /*
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| 2 | * Copyright 2003,2004 The Apache Software Foundation.
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 |
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| 17 | /*
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| 18 | * $Log: MemoryManager.hpp,v $
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| 19 | * Revision 1.3 2004/09/08 13:55:57 peiyongz
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| 20 | * Apache License Version 2.0
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| 21 | *
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| 22 | * Revision 1.2 2003/04/27 17:17:01 jberry
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| 23 | * Add include for stdlib to pull in size_t declaration
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| 24 | *
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| 25 | * Revision 1.1 2003/04/21 15:47:45 knoaman
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| 26 | * Initial check-in.
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| 27 | *
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| 28 | */
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| 29 |
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| 30 |
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| 31 | #if !defined(MEMORYMANAGER_HPP)
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| 32 | #define MEMORYMANAGER_HPP
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| 33 |
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| 34 | #include <xercesc/util/XercesDefs.hpp>
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| 35 | #include <stdlib.h>
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| 36 |
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| 37 |
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| 38 | XERCES_CPP_NAMESPACE_BEGIN
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| 39 |
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| 40 |
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| 41 | /**
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| 42 | * Configurable memory manager
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| 43 | *
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| 44 | * <p>This interface allows outside applications to plug in their own memory
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| 45 | * manager to be used by Xerces for memory allocation/deallocation.</p>
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| 46 | */
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| 47 | class XMLPARSER_EXPORT MemoryManager
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| 48 | {
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| 49 | public:
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| 50 | // -----------------------------------------------------------------------
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| 51 | // Constructors are hidden, only the virtual destructor is exposed
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| 52 | // -----------------------------------------------------------------------
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| 53 |
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| 54 | /** @name Destructor */
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| 55 | //@{
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| 56 |
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| 57 | /**
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| 58 | * Default destructor
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| 59 | */
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| 60 | virtual ~MemoryManager()
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| 61 | {
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| 62 | }
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| 63 | //@}
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| 64 |
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| 65 |
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| 66 | // -----------------------------------------------------------------------
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| 67 | // The virtual memory manager interface
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| 68 | // -----------------------------------------------------------------------
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| 69 | /** @name The pure virtual methods in this interface. */
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| 70 | //@{
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| 71 |
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| 72 | /**
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| 73 | * This method allocates requested memory.
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| 74 | *
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| 75 | * @param size The requested memory size
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| 76 | *
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| 77 | * @return A pointer to the allocated memory
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| 78 | */
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| 79 | virtual void* allocate(size_t size) = 0;
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| 80 |
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| 81 | /**
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| 82 | * This method deallocates memory
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| 83 | *
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| 84 | * @param p The pointer to the allocated memory to be deleted
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| 85 | */
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| 86 | virtual void deallocate(void* p) = 0;
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| 87 |
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| 88 | //@}
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| 89 |
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| 90 |
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| 91 | protected :
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| 92 | // -----------------------------------------------------------------------
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| 93 | // Hidden Constructors
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| 94 | // -----------------------------------------------------------------------
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| 95 | /** @name Constructor */
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| 96 | //@{
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| 97 |
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| 98 | /**
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| 99 | * Protected default constructor
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| 100 | */
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| 101 | MemoryManager()
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| 102 | {
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| 103 | }
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| 104 | //@}
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| 105 |
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| 106 |
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| 107 |
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| 108 | private:
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| 109 | // -----------------------------------------------------------------------
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| 110 | // Unimplemented constructors and operators
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| 111 | // -----------------------------------------------------------------------
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| 112 | MemoryManager(const MemoryManager&);
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| 113 | MemoryManager& operator=(const MemoryManager&);
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| 114 | };
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| 115 |
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| 116 | XERCES_CPP_NAMESPACE_END
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| 117 |
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| 118 | #endif
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