BinMemInputStream.hpp
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* $Id$
*/
#if !defined(XERCESC_INCLUDE_GUARD_BINMEMINPUTSTREAM_HPP)
#define XERCESC_INCLUDE_GUARD_BINMEMINPUTSTREAM_HPP
#include <xercesc/util/BinInputStream.hpp>
#include <xercesc/util/PlatformUtils.hpp>
XERCES_CPP_NAMESPACE_BEGIN
class XMLUTIL_EXPORT BinMemInputStream : public BinInputStream
{
public :
// -----------------------------------------------------------------------
// Class specific types
// -----------------------------------------------------------------------
enum BufOpts
{
BufOpt_Adopt
, BufOpt_Copy
, BufOpt_Reference
};
// -----------------------------------------------------------------------
// Constructors and Destructor
// -----------------------------------------------------------------------
BinMemInputStream
(
const XMLByte* const initData
, const XMLSize_t capacity
, const BufOpts bufOpt = BufOpt_Copy
, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
);
virtual ~BinMemInputStream();
// -----------------------------------------------------------------------
// Stream management methods
// -----------------------------------------------------------------------
void reset();
// -----------------------------------------------------------------------
// Implementation of the input stream interface
// -----------------------------------------------------------------------
virtual XMLFilePos curPos() const;
virtual XMLSize_t readBytes
(
XMLByte* const toFill
, const XMLSize_t maxToRead
);
virtual const XMLCh* getContentType() const;
inline XMLSize_t getSize() const;
private :
// -----------------------------------------------------------------------
// Unimplemented constructors and operators
// -----------------------------------------------------------------------
BinMemInputStream(const BinMemInputStream&);
BinMemInputStream& operator=(const BinMemInputStream&);
// -----------------------------------------------------------------------
// Private data members
//
// fBuffer
// The buffer of bytes that we are streaming.
//
// fBufOpt
// Indicates the ownership status of the buffer. The caller can have
// us adopt it (we delete it), reference it, or just make our own
// copy of it.
//
// fCapacity
// The size of the buffer being streamed.
//
// fCurIndex
// The current index where the next byte will be read from. When it
// hits fCapacity, we are done.
// -----------------------------------------------------------------------
const XMLByte* fBuffer;
BufOpts fBufOpt;
XMLSize_t fCapacity;
XMLSize_t fCurIndex;
MemoryManager* fMemoryManager;
};
// ---------------------------------------------------------------------------
// BinMemInputStream: Stream management methods
// ---------------------------------------------------------------------------
inline void BinMemInputStream::reset()
{
fCurIndex = 0;
}
// ---------------------------------------------------------------------------
// BinMemInputStream: Implementation of the input stream interface
// ---------------------------------------------------------------------------
inline XMLFilePos BinMemInputStream::curPos() const
{
return fCurIndex;
}
inline XMLSize_t BinMemInputStream::getSize() const
{
return fCapacity;
}
XERCES_CPP_NAMESPACE_END
#endif
XERCES_CPP_NAMESPACE_BEGIN
#define XERCES_CPP_NAMESPACE_BEGIN
Definition: XercesDefs.hpp:112
BinInputStream::curPos
virtual XMLFilePos curPos() const =0
BinInputStream.hpp
XERCES_CPP_NAMESPACE_END
#define XERCES_CPP_NAMESPACE_END
Definition: XercesDefs.hpp:113
XMLByte
unsigned char XMLByte
Definition: XercesDefs.hpp:65
BinInputStream
Definition: BinInputStream.hpp:29
XMLUTIL_EXPORT
#define XMLUTIL_EXPORT
Definition: XercesDefs.hpp:162
PlatformUtils.hpp
BinInputStream::readBytes
virtual XMLSize_t readBytes(XMLByte *const toFill, const XMLSize_t maxToRead)=0
XMLCh
uint16_t XMLCh
Definition: Xerces_autoconf_config.hpp:120
XMLPlatformUtils::fgMemoryManager
static MemoryManager * fgMemoryManager
The configurable memory manager.
Definition: PlatformUtils.hpp:121
XMLSize_t
size_t XMLSize_t
Definition: Xerces_autoconf_config.hpp:112
BinMemInputStream::BufOpts
BufOpts
Definition: BinMemInputStream.hpp:36
XMLFilePos
XMLUInt64 XMLFilePos
Definition: Xerces_autoconf_config.hpp:139
BinMemInputStream::curPos
virtual XMLFilePos curPos() const
Definition: BinMemInputStream.hpp:122
BinMemInputStream::getSize
XMLSize_t getSize() const
Definition: BinMemInputStream.hpp:127
BinMemInputStream
Definition: BinMemInputStream.hpp:30
MemoryManager
Configurable memory manager.
Definition: MemoryManager.hpp:39
BinMemInputStream::reset
void reset()
Definition: BinMemInputStream.hpp:113
BinInputStream::getContentType
virtual const XMLCh * getContentType() const =0
Return the "out-of-band" content type for the data supplied by this input stream in the form of the m...