[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: BinMemInputStream.hpp,v $
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| 59 | * Revision 1.4 2004/01/29 11:48:46 cargilld
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| 60 | * Code cleanup changes to get rid of various compiler diagnostic messages.
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| 61 | *
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| 62 | * Revision 1.3 2003/05/16 03:11:22 knoaman
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| 63 | * Partial implementation of the configurable memory manager.
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| 64 | *
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| 65 | * Revision 1.2 2002/11/04 15:22:03 tng
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| 66 | * C++ Namespace Support.
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| 67 | *
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| 68 | * Revision 1.1.1.1 2002/02/01 22:22:10 peiyongz
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| 69 | * sane_include
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| 70 | *
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| 71 | * Revision 1.3 2000/02/24 20:05:24 abagchi
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| 72 | * Swat for removing Log from API docs
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| 73 | *
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| 74 | * Revision 1.2 2000/02/06 07:48:01 rahulj
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| 75 | * Year 2K copyright swat.
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| 76 | *
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| 77 | * Revision 1.1.1.1 1999/11/09 01:04:07 twl
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| 78 | * Initial checkin
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| 79 | *
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| 80 | * Revision 1.3 1999/11/08 20:45:04 rahul
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| 81 | * Swat for adding in Product name and CVS comment log variable.
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| 82 | *
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| 83 | */
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| 84 |
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| 85 | #if !defined(BINMEMINPUTSTREAM_HPP)
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| 86 | #define BINMEMINPUTSTREAM_HPP
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| 87 |
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| 88 | #include <xercesc/util/BinInputStream.hpp>
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| 89 | #include <xercesc/util/PlatformUtils.hpp>
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| 90 |
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| 91 | XERCES_CPP_NAMESPACE_BEGIN
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| 92 |
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| 93 | class XMLUTIL_EXPORT BinMemInputStream : public BinInputStream
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| 94 | {
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| 95 | public :
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| 96 | // -----------------------------------------------------------------------
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| 97 | // Class specific types
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| 98 | // -----------------------------------------------------------------------
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| 99 | enum BufOpts
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| 100 | {
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| 101 | BufOpt_Adopt
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| 102 | , BufOpt_Copy
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| 103 | , BufOpt_Reference
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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 | // Constructors and Destructor
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| 109 | // -----------------------------------------------------------------------
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| 110 | BinMemInputStream
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| 111 | (
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| 112 | const XMLByte* const initData
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| 113 | , const unsigned int capacity
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| 114 | , const BufOpts bufOpt = BufOpt_Copy
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| 115 | , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
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| 116 | );
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| 117 | virtual ~BinMemInputStream();
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| 118 |
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| 119 |
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| 120 | // -----------------------------------------------------------------------
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| 121 | // Stream management methods
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| 122 | // -----------------------------------------------------------------------
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| 123 | void reset();
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| 124 |
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| 125 |
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| 126 | // -----------------------------------------------------------------------
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| 127 | // Implementation of the input stream interface
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| 128 | // -----------------------------------------------------------------------
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| 129 | virtual unsigned int curPos() const;
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| 130 | virtual unsigned int readBytes
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| 131 | (
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| 132 | XMLByte* const toFill
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| 133 | , const unsigned int maxToRead
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| 134 | );
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| 135 |
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| 136 |
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| 137 | private :
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| 138 | // -----------------------------------------------------------------------
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| 139 | // Unimplemented constructors and operators
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| 140 | // -----------------------------------------------------------------------
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| 141 | BinMemInputStream(const BinMemInputStream&);
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| 142 | BinMemInputStream& operator=(const BinMemInputStream&);
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| 143 | // -----------------------------------------------------------------------
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| 144 | // Private data members
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| 145 | //
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| 146 | // fBuffer
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| 147 | // The buffer of bytes that we are streaming.
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| 148 | //
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| 149 | // fBufOpt
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| 150 | // Indicates the ownership status of the buffer. The caller can have
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| 151 | // us adopt it (we delete it), reference it, or just make our own
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| 152 | // copy of it.
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| 153 | //
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| 154 | // fCapacity
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| 155 | // The size of the buffer being streamed.
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| 156 | //
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| 157 | // fCurIndex
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| 158 | // The current index where the next byte will be read from. When it
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| 159 | // hits fCapacity, we are done.
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| 160 | // -----------------------------------------------------------------------
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| 161 | const XMLByte* fBuffer;
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| 162 | BufOpts fBufOpt;
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| 163 | unsigned int fCapacity;
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| 164 | unsigned int fCurIndex;
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| 165 | MemoryManager* fMemoryManager;
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| 166 | };
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| 167 |
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| 168 |
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| 169 | // ---------------------------------------------------------------------------
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| 170 | // BinMemInputStream: Stream management methods
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| 171 | // ---------------------------------------------------------------------------
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| 172 | inline void BinMemInputStream::reset()
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| 173 | {
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| 174 | fCurIndex = 0;
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| 175 | }
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| 176 |
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| 177 |
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| 178 | // ---------------------------------------------------------------------------
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| 179 | // BinMemInputStream: Implementation of the input stream interface
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| 180 | // ---------------------------------------------------------------------------
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| 181 | inline unsigned int BinMemInputStream::curPos() const
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| 182 | {
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| 183 | return fCurIndex;
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| 184 | }
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| 185 |
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| 186 | XERCES_CPP_NAMESPACE_END
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| 187 |
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| 188 | #endif
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