[188] | 1 | /*
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| 2 | * The Apache Software License, Version 1.1
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| 3 | *
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| 4 | * Copyright (c) 1999-2000 The Apache Software Foundation. All rights
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| 5 | * reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | *
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| 11 | * 1. Redistributions of source code must retain the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer.
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| 13 | *
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright
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| 15 | * notice, this list of conditions and the following disclaimer in
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| 16 | * the documentation and/or other materials provided with the
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| 17 | * distribution.
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| 18 | *
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| 19 | * 3. The end-user documentation included with the redistribution,
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| 20 | * if any, must include the following acknowledgment:
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| 21 | * "This product includes software developed by the
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| 22 | * Apache Software Foundation (http://www.apache.org/)."
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| 23 | * Alternately, this acknowledgment may appear in the software itself,
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| 24 | * if and wherever such third-party acknowledgments normally appear.
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| 25 | *
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| 26 | * 4. The names "Xerces" and "Apache Software Foundation" must
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| 27 | * not be used to endorse or promote products derived from this
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| 28 | * software without prior written permission. For written
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| 29 | * permission, please contact apache\@apache.org.
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| 30 | *
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| 31 | * 5. Products derived from this software may not be called "Apache",
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| 32 | * nor may "Apache" appear in their name, without prior written
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| 33 | * permission of the Apache Software Foundation.
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| 34 | *
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| 35 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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| 36 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 37 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 38 | * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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| 39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 41 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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| 42 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 43 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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| 44 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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| 45 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 46 | * SUCH DAMAGE.
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| 47 | * ====================================================================
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| 48 | *
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| 49 | * This software consists of voluntary contributions made by many
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| 50 | * individuals on behalf of the Apache Software Foundation, and was
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| 51 | * originally based on software copyright (c) 1999, International
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| 52 | * Business Machines, Inc., http://www.ibm.com . For more information
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| 53 | * on the Apache Software Foundation, please see
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| 54 | * <http://www.apache.org/>.
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| 55 | */
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| 56 |
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| 57 | /**
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| 58 | * $Log: Janitor.c,v $
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| 59 | * Revision 1.5 2003/11/06 19:28:11 knoaman
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| 60 | * PSVI support for annotations.
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| 61 | *
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| 62 | * Revision 1.4 2003/05/21 03:34:52 jberry
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| 63 | * Cast away CodeWarrior complaint of casting away const if we're holding a const obj
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| 64 | *
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| 65 | * Revision 1.3 2003/05/15 19:04:35 knoaman
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| 66 | * Partial implementation of the configurable memory manager.
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| 67 | *
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| 68 | * Revision 1.2 2002/11/04 15:22:04 tng
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| 69 | * C++ Namespace Support.
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| 70 | *
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| 71 | * Revision 1.1.1.1 2002/02/01 22:22:10 peiyongz
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| 72 | * sane_include
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| 73 | *
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| 74 | * Revision 1.6 2000/10/13 22:45:11 andyh
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| 75 | * Complete removal of ArrayJanitory::operator->(). Was just commented out earlier.
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| 76 | *
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| 77 | * Revision 1.5 2000/10/10 23:52:10 andyh
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| 78 | * From Janitor, remove the addition that is having compile problems in MSVC.
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| 79 | *
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| 80 | * Revision 1.4 2000/10/09 18:32:31 jberry
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| 81 | * Add some auto_ptr functionality to allow modification of monitored
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| 82 | * pointer value. This eases use of Janitor in some situations.
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| 83 | *
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| 84 | * Revision 1.3 2000/03/02 19:54:40 roddey
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| 85 | * This checkin includes many changes done while waiting for the
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| 86 | * 1.1.0 code to be finished. I can't list them all here, but a list is
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| 87 | * available elsewhere.
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| 88 | *
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| 89 | * Revision 1.2 2000/02/06 07:48:02 rahulj
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| 90 | * Year 2K copyright swat.
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| 91 | *
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| 92 | * Revision 1.1.1.1 1999/11/09 01:04:26 twl
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| 93 | * Initial checkin
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| 94 | *
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| 95 | * Revision 1.2 1999/11/08 20:45:08 rahul
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| 96 | * Swat for adding in Product name and CVS comment log variable.
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| 97 | *
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| 98 | */
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| 99 |
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| 100 |
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| 101 | // ---------------------------------------------------------------------------
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| 102 | // Includes
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| 103 | // ---------------------------------------------------------------------------
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| 104 | #if defined(XERCES_TMPLSINC)
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| 105 | #include <xercesc/util/Janitor.hpp>
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| 106 | #endif
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| 107 |
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| 108 | XERCES_CPP_NAMESPACE_BEGIN
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| 109 |
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| 110 | // ---------------------------------------------------------------------------
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| 111 | // Janitor: Constructors and Destructor
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| 112 | // ---------------------------------------------------------------------------
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| 113 | template <class T> Janitor<T>::Janitor(T* const toDelete) :
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| 114 | fData(toDelete)
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| 115 | {
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| 116 | }
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| 117 |
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| 118 |
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| 119 | template <class T> Janitor<T>::~Janitor()
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| 120 | {
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| 121 | reset();
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| 122 | }
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| 123 |
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| 124 |
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| 125 | // ---------------------------------------------------------------------------
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| 126 | // Janitor: Public, non-virtual methods
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| 127 | // ---------------------------------------------------------------------------
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| 128 | template <class T> void
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| 129 | Janitor<T>::orphan()
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| 130 | {
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| 131 | release();
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| 132 | }
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| 133 |
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| 134 |
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| 135 | template <class T> T&
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| 136 | Janitor<T>::operator*() const
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| 137 | {
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| 138 | return *fData;
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| 139 | }
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| 140 |
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| 141 |
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| 142 | template <class T> T*
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| 143 | Janitor<T>::operator->() const
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| 144 | {
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| 145 | return fData;
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| 146 | }
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| 147 |
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| 148 |
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| 149 | template <class T> T*
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| 150 | Janitor<T>::get() const
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| 151 | {
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| 152 | return fData;
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| 153 | }
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| 154 |
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| 155 |
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| 156 | template <class T> T*
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| 157 | Janitor<T>::release()
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| 158 | {
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| 159 | T* p = fData;
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| 160 | fData = 0;
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| 161 | return p;
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| 162 | }
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| 163 |
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| 164 |
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| 165 | template <class T> void Janitor<T>::reset(T* p)
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| 166 | {
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| 167 | if (fData)
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| 168 | delete fData;
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| 169 |
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| 170 | fData = p;
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| 171 | }
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| 172 |
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| 173 | template <class T> bool Janitor<T>::isDataNull()
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| 174 | {
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| 175 | return (fData == 0);
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| 176 | }
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| 177 |
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| 178 |
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| 179 | // -----------------------------------------------------------------------
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| 180 | // ArrayJanitor: Constructors and Destructor
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| 181 | // -----------------------------------------------------------------------
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| 182 | template <class T> ArrayJanitor<T>::ArrayJanitor(T* const toDelete) :
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| 183 | fData(toDelete)
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| 184 | , fMemoryManager(0)
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| 185 | {
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| 186 | }
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| 187 |
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| 188 | template <class T>
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| 189 | ArrayJanitor<T>::ArrayJanitor(T* const toDelete,
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| 190 | MemoryManager* const manager) :
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| 191 | fData(toDelete)
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| 192 | , fMemoryManager(manager)
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| 193 | {
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| 194 | }
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| 195 |
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| 196 |
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| 197 | template <class T> ArrayJanitor<T>::~ArrayJanitor()
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| 198 | {
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| 199 | reset();
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| 200 | }
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| 201 |
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| 202 |
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| 203 | // -----------------------------------------------------------------------
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| 204 | // ArrayJanitor: Public, non-virtual methods
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| 205 | // -----------------------------------------------------------------------
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| 206 | template <class T> void
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| 207 | ArrayJanitor<T>::orphan()
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| 208 | {
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| 209 | release();
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| 210 | }
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| 211 |
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| 212 |
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| 213 | // Look, Ma! No hands! Don't call this with null data!
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| 214 | template <class T> T&
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| 215 | ArrayJanitor<T>::operator[](int index) const
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| 216 | {
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| 217 | // TODO: Add appropriate exception
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| 218 | return fData[index];
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| 219 | }
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| 220 |
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| 221 |
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| 222 | template <class T> T*
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| 223 | ArrayJanitor<T>::get() const
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| 224 | {
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| 225 | return fData;
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| 226 | }
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| 227 |
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| 228 |
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| 229 | template <class T> T*
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| 230 | ArrayJanitor<T>::release()
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| 231 | {
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| 232 | T* p = fData;
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| 233 | fData = 0;
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| 234 | return p;
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| 235 | }
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| 236 |
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| 237 |
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| 238 | template <class T> void
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| 239 | ArrayJanitor<T>::reset(T* p)
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| 240 | {
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| 241 | if (fData) {
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| 242 |
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| 243 | if (fMemoryManager)
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| 244 | fMemoryManager->deallocate((void*)fData);
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| 245 | else
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| 246 | delete [] fData;
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| 247 | }
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| 248 |
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| 249 | fData = p;
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| 250 | fMemoryManager = 0;
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| 251 | }
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| 252 |
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| 253 | template <class T> void
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| 254 | ArrayJanitor<T>::reset(T* p, MemoryManager* manager)
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| 255 | {
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| 256 | if (fData) {
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| 257 |
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| 258 | if (fMemoryManager)
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| 259 | fMemoryManager->deallocate((void*)fData);
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| 260 | else
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| 261 | delete [] fData;
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| 262 | }
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| 263 |
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| 264 | fData = p;
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| 265 | fMemoryManager = manager;
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| 266 | }
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| 267 |
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| 268 | XERCES_CPP_NAMESPACE_END
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| 269 |
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