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MemBufInputSource.hpp
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1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 /*
19 * $Id: MemBufInputSource.hpp 932887 2010-04-11 13:04:59Z borisk $
20 */
21
22
23 #if !defined(XERCESC_INCLUDE_GUARD_MEMBUFINPUTSOURCE_HPP)
24 #define XERCESC_INCLUDE_GUARD_MEMBUFINPUTSOURCE_HPP
25
26 #include <xercesc/sax/InputSource.hpp>
27
28 XERCES_CPP_NAMESPACE_BEGIN
29
30 class BinInputStream;
31
32
61 class XMLPARSER_EXPORT MemBufInputSource : public InputSource
62 {
63 public :
64 // -----------------------------------------------------------------------
65 // Constructors and Destructor
66 // -----------------------------------------------------------------------
67
70
93 MemBufInputSource
94 (
95 const XMLByte* const srcDocBytes
96 , const XMLSize_t byteCount
97 , const XMLCh* const bufId
98 , const bool adoptBuffer = false
99 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
100 );
101
106 MemBufInputSource
107 (
108 const XMLByte* const srcDocBytes
109 , const XMLSize_t byteCount
110 , const char* const bufId
111 , const bool adoptBuffer = false
112 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
113 );
115
122 ~MemBufInputSource();
124
125
126 // -----------------------------------------------------------------------
127 // Virtual input source interface
128 // -----------------------------------------------------------------------
129
132
143 BinInputStream* makeStream() const;
144
146
147
148 // -----------------------------------------------------------------------
149 // Setter methods
150 // -----------------------------------------------------------------------
151
155
171 void setCopyBufToStream(const bool newState);
172
182 void resetMemBufInputSource(const XMLByte* const srcDocBytes
183 , const XMLSize_t byteCount);
185
186
187 private :
188 // -----------------------------------------------------------------------
189 // Unimplemented constructors and operators
190 // -----------------------------------------------------------------------
191 MemBufInputSource(const MemBufInputSource&);
192 MemBufInputSource& operator=(const MemBufInputSource&);
193
194 // -----------------------------------------------------------------------
195 // Private data members
196 //
197 // fAdopted
198 // Indicates whether the buffer is adopted or not. If so, then it
199 // is destroyed when the input source is destroyed.
200 //
201 // fByteCount
202 // The size of the source document.
203 //
204 // fCopyBufToStream
205 // This defaults to true (the safe option), which causes it to
206 // give a copy of the buffer to any streams it creates. If you set
207 // it to false, it will allow the streams to just reference the
208 // buffer (in which case this input source must stay alive as long
209 // as the buffer is in use by the stream.)
210 //
211 // fSrcBytes
212 // The source memory buffer that is being spooled from. Whether it
213 // belongs to the this input source or not is controlled by the
214 // fAdopted flag.
215 // -----------------------------------------------------------------------
216 bool fAdopted;
217 XMLSize_t fByteCount;
218 bool fCopyBufToStream;
219 const XMLByte* fSrcBytes;
220 };
221
222
223 inline void MemBufInputSource::setCopyBufToStream(const bool newState)
224 {
225 fCopyBufToStream = newState;
226 }
227
228 XERCES_CPP_NAMESPACE_END
229
230 #endif