sippeangelo
99 lines
3.4 KiB
C++
99 lines
3.4 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: BinMemInputStream.cpp 670359 2008-06-22 13:43:45Z borisk $
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*/
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// ---------------------------------------------------------------------------
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// Includes
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// ---------------------------------------------------------------------------
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#include <xercesc/util/BinMemInputStream.hpp>
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#include <xercesc/framework/MemoryManager.hpp>
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#include <string.h>
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XERCES_CPP_NAMESPACE_BEGIN
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// ---------------------------------------------------------------------------
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// BinMemInputStream: Constructors and Destructor
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// ---------------------------------------------------------------------------
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BinMemInputStream::BinMemInputStream( const XMLByte* const initData
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, const XMLSize_t capacity
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, const BufOpts bufOpt
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, MemoryManager* const manager) :
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fBuffer(0)
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, fBufOpt(bufOpt)
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, fCapacity(capacity)
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, fCurIndex(0)
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, fMemoryManager(manager)
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{
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// According to the buffer option, do the right thing
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if (fBufOpt == BufOpt_Copy)
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{
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XMLByte* tmpBuf = (XMLByte*) fMemoryManager->allocate
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(
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fCapacity * sizeof(XMLByte)
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);//new XMLByte[fCapacity];
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memcpy(tmpBuf, initData, capacity);
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fBuffer = tmpBuf;
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}
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else
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{
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fBuffer = initData;
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}
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}
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BinMemInputStream::~BinMemInputStream()
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{
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//
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// If we adopted or copied the buffer, then clean it up. We have to
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// cast off the const'ness in that case in order to delete it.
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//
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if ((fBufOpt == BufOpt_Adopt) || (fBufOpt == BufOpt_Copy))
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fMemoryManager->deallocate((XMLByte*)fBuffer);//delete [] (XMLByte*)fBuffer;
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}
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// ---------------------------------------------------------------------------
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// MemBinInputStream: Implementation of the input stream interface
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// ---------------------------------------------------------------------------
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XMLSize_t BinMemInputStream::readBytes( XMLByte* const toFill
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, const XMLSize_t maxToRead)
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{
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//
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// Figure out how much we can really read. Its the smaller of the
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// amount available and the amount asked for.
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//
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const XMLSize_t available = (fCapacity - fCurIndex);
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if (!available)
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return 0;
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const XMLSize_t actualToRead = available < maxToRead ? available : maxToRead;
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memcpy(toFill, &fBuffer[fCurIndex], actualToRead);
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fCurIndex += actualToRead;
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return actualToRead;
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}
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const XMLCh* BinMemInputStream::getContentType() const
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{
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return 0;
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}
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XERCES_CPP_NAMESPACE_END
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