source: NonGTP/Xerces/xercesc/dom/deprecated/DOMStringImpl.hpp @ 188

Revision 188, 5.0 KB checked in by mattausch, 19 years ago (diff)

added xercesc to support

Line 
1#ifndef DOMStringImpl_HEADER_GUARD_
2#define DOMStringImpl_HEADER_GUARD_
3
4/*
5 * The Apache Software License, Version 1.1
6 *
7 * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
8 * reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 *
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 *
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in
19 *    the documentation and/or other materials provided with the
20 *    distribution.
21 *
22 * 3. The end-user documentation included with the redistribution,
23 *    if any, must include the following acknowledgment:
24 *       "This product includes software developed by the
25 *        Apache Software Foundation (http://www.apache.org/)."
26 *    Alternately, this acknowledgment may appear in the software itself,
27 *    if and wherever such third-party acknowledgments normally appear.
28 *
29 * 4. The names "Xerces" and "Apache Software Foundation" must
30 *    not be used to endorse or promote products derived from this
31 *    software without prior written permission. For written
32 *    permission, please contact apache\@apache.org.
33 *
34 * 5. Products derived from this software may not be called "Apache",
35 *    nor may "Apache" appear in their name, without prior written
36 *    permission of the Apache Software Foundation.
37 *
38 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
39 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
40 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
41 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
44 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
45 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
46 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
47 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
48 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
49 * SUCH DAMAGE.
50 * ====================================================================
51 *
52 * This software consists of voluntary contributions made by many
53 * individuals on behalf of the Apache Software Foundation, and was
54 * originally based on software copyright (c) 1999, International
55 * Business Machines, Inc., http://www.ibm.com .  For more information
56 * on the Apache Software Foundation, please see
57 * <http://www.apache.org/>.
58 */
59
60/*
61 * $Id: DOMStringImpl.hpp,v 1.3 2002/11/04 15:04:44 tng Exp $
62 */
63
64
65//
66//  This file is part of the internal implementation of the C++ XML DOM.
67//  It should NOT be included or used directly by application programs.
68//
69//  Applications should include the file <xercesc/dom/deprecated/DOM.hpp> for the entire
70//  DOM API, or DOM_*.hpp for individual DOM classes, where the class
71//  name is substituded for the *.
72//
73
74
75#include <xercesc/util/XercesDefs.hpp>
76#include <xercesc/util/Mutexes.hpp>
77#include <stdio.h>
78
79XERCES_CPP_NAMESPACE_BEGIN
80
81class   DOMStringData
82{
83public:
84    unsigned int        fBufferLength;
85    int                 fRefCount;
86    XMLCh               fData[1];
87
88    static DOMStringData *allocateBuffer(unsigned int length);
89    inline void         addRef();
90    inline void         removeRef();
91};
92
93class  DOMStringHandle
94{
95public:
96            unsigned int     fLength;              // The logical length of the DOMString.
97                                                   //  This may be shorter than the buffer length.
98            int              fRefCount;            // The number of DOMString objects pointing to
99                                                   //  this string handle.
100            DOMStringData    *fDSData;             // Pointer to the string buffer. May be null.
101
102    void    *operator new( size_t sizeToAlloc);    // StringHandles have custom, optimized
103    void    operator delete( void *pvMem );        //   memory allocation.
104
105
106private:
107    static  void             *freeListPtr;         // Head of the linked list of unallocated String Handles
108
109    static  DOMStringHandle  *blockListPtr;        // Head of the linked list of memory blocks from which
110                                                   //  string handles are sub-allocated.
111
112public:
113    static  DOMStringHandle  *createNewStringHandle(unsigned int bufLength);
114            DOMStringHandle  *cloneStringHandle();
115    inline  void             addRef();
116    inline  void             removeRef();
117                             ~DOMStringHandle() {};
118    static  void             DOMStringCleanup();
119private:
120    inline                   DOMStringHandle() {};
121    static inline  XMLMutex &getMutex();
122};
123
124XERCES_CPP_NAMESPACE_END
125
126#endif
127
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