[2674] | 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 | * |
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| 20 | * Revision 1.5 2004/09/08 13:56:21 peiyongz |
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| 21 | * Apache License Version 2.0 |
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| 22 | * |
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| 23 | * Revision 1.4 2004/01/29 11:48:46 cargilld |
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| 24 | * Code cleanup changes to get rid of various compiler diagnostic messages. |
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| 25 | * |
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| 26 | * Revision 1.3 2003/05/16 03:11:22 knoaman |
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| 27 | * Partial implementation of the configurable memory manager. |
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| 28 | * |
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| 29 | * Revision 1.2 2002/11/04 15:22:03 tng |
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| 30 | * C++ Namespace Support. |
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| 31 | * |
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| 32 | * Revision 1.1.1.1 2002/02/01 22:22:10 peiyongz |
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| 33 | * sane_include |
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| 34 | * |
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| 35 | * Revision 1.3 2000/02/24 20:05:24 abagchi |
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| 36 | * Swat for removing Log from API docs |
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| 37 | * |
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| 38 | * Revision 1.2 2000/02/06 07:48:01 rahulj |
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| 39 | * Year 2K copyright swat. |
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| 40 | * |
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| 41 | * Revision 1.1.1.1 1999/11/09 01:04:07 twl |
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| 42 | * Initial checkin |
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| 43 | * |
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| 44 | * Revision 1.3 1999/11/08 20:45:04 rahul |
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| 45 | * Swat for adding in Product name and CVS comment log variable. |
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| 46 | * |
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| 47 | */ |
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| 48 | |
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| 49 | #if !defined(BINMEMINPUTSTREAM_HPP) |
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| 50 | #define BINMEMINPUTSTREAM_HPP |
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| 51 | |
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| 52 | #include <xercesc/util/BinInputStream.hpp> |
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| 53 | #include <xercesc/util/PlatformUtils.hpp> |
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| 54 | |
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| 55 | XERCES_CPP_NAMESPACE_BEGIN |
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| 56 | |
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| 57 | class XMLUTIL_EXPORT BinMemInputStream : public BinInputStream |
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| 58 | { |
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| 59 | public : |
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| 60 | // ----------------------------------------------------------------------- |
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| 61 | // Class specific types |
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| 62 | // ----------------------------------------------------------------------- |
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| 63 | enum BufOpts |
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| 64 | { |
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| 65 | BufOpt_Adopt |
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| 66 | , BufOpt_Copy |
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| 67 | , BufOpt_Reference |
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| 68 | }; |
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| 69 | |
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| 70 | |
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| 71 | // ----------------------------------------------------------------------- |
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| 72 | // Constructors and Destructor |
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| 73 | // ----------------------------------------------------------------------- |
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| 74 | BinMemInputStream |
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| 75 | ( |
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| 76 | const XMLByte* const initData |
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| 77 | , const unsigned int capacity |
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| 78 | , const BufOpts bufOpt = BufOpt_Copy |
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| 79 | , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager |
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| 80 | ); |
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| 81 | virtual ~BinMemInputStream(); |
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| 82 | |
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| 83 | |
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| 84 | // ----------------------------------------------------------------------- |
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| 85 | // Stream management methods |
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| 86 | // ----------------------------------------------------------------------- |
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| 87 | void reset(); |
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| 88 | |
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| 89 | |
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| 90 | // ----------------------------------------------------------------------- |
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| 91 | // Implementation of the input stream interface |
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| 92 | // ----------------------------------------------------------------------- |
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| 93 | virtual unsigned int curPos() const; |
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| 94 | |
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| 95 | virtual unsigned int readBytes |
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| 96 | ( |
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| 97 | XMLByte* const toFill |
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| 98 | , const unsigned int maxToRead |
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| 99 | ); |
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| 100 | |
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| 101 | inline unsigned int getSize() const; |
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| 102 | |
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| 103 | private : |
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| 104 | // ----------------------------------------------------------------------- |
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| 105 | // Unimplemented constructors and operators |
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| 106 | // ----------------------------------------------------------------------- |
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| 107 | BinMemInputStream(const BinMemInputStream&); |
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| 108 | BinMemInputStream& operator=(const BinMemInputStream&); |
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| 109 | // ----------------------------------------------------------------------- |
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| 110 | // Private data members |
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| 111 | // |
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| 112 | // fBuffer |
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| 113 | // The buffer of bytes that we are streaming. |
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| 114 | // |
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| 115 | // fBufOpt |
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| 116 | // Indicates the ownership status of the buffer. The caller can have |
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| 117 | // us adopt it (we delete it), reference it, or just make our own |
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| 118 | // copy of it. |
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| 119 | // |
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| 120 | // fCapacity |
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| 121 | // The size of the buffer being streamed. |
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| 122 | // |
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| 123 | // fCurIndex |
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| 124 | // The current index where the next byte will be read from. When it |
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| 125 | // hits fCapacity, we are done. |
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| 126 | // ----------------------------------------------------------------------- |
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| 127 | const XMLByte* fBuffer; |
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| 128 | BufOpts fBufOpt; |
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| 129 | unsigned int fCapacity; |
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| 130 | unsigned int fCurIndex; |
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| 131 | MemoryManager* fMemoryManager; |
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| 132 | }; |
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| 133 | |
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| 134 | |
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| 135 | // --------------------------------------------------------------------------- |
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| 136 | // BinMemInputStream: Stream management methods |
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| 137 | // --------------------------------------------------------------------------- |
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| 138 | inline void BinMemInputStream::reset() |
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| 139 | { |
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| 140 | fCurIndex = 0; |
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| 141 | } |
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| 142 | |
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| 143 | |
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| 144 | // --------------------------------------------------------------------------- |
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| 145 | // BinMemInputStream: Implementation of the input stream interface |
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| 146 | // --------------------------------------------------------------------------- |
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| 147 | inline unsigned int BinMemInputStream::curPos() const |
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| 148 | { |
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| 149 | return fCurIndex; |
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| 150 | } |
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| 151 | |
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| 152 | inline unsigned int BinMemInputStream::getSize() const |
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| 153 | { |
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| 154 | return fCapacity; |
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| 155 | } |
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| 156 | |
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| 157 | XERCES_CPP_NAMESPACE_END |
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| 158 | |
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| 159 | #endif |
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