sippeangelo
115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
/*
|
|
* 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: XMLBufferMgr.cpp 673679 2008-07-03 13:50:10Z borisk $
|
|
*/
|
|
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Includes
|
|
// ---------------------------------------------------------------------------
|
|
//#include <string.h>
|
|
#include <xercesc/framework/XMLBufferMgr.hpp>
|
|
#include <xercesc/util/RuntimeException.hpp>
|
|
|
|
XERCES_CPP_NAMESPACE_BEGIN
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Constructors and Destructor
|
|
// ---------------------------------------------------------------------------
|
|
XMLBufferMgr::XMLBufferMgr(MemoryManager* const manager) :
|
|
|
|
fBufCount(32)
|
|
, fMemoryManager(manager)
|
|
, fBufList(0)
|
|
{
|
|
// Allocate the buffer list and zero it out
|
|
fBufList = (XMLBuffer**) fMemoryManager->allocate(fBufCount * sizeof(XMLBuffer*)); // new XMLBuffer*[fBufCount];
|
|
for (XMLSize_t index = 0; index < fBufCount; index++)
|
|
fBufList[index] = 0;
|
|
}
|
|
|
|
XMLBufferMgr::~XMLBufferMgr()
|
|
{
|
|
// Delete any buffers that got allocated
|
|
for (XMLSize_t index = 0; index < fBufCount; index++)
|
|
delete fBufList[index];
|
|
|
|
// And then the buffer list
|
|
fMemoryManager->deallocate(fBufList); //delete [] fBufList;
|
|
}
|
|
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Buffer management
|
|
// ---------------------------------------------------------------------------
|
|
XMLBuffer& XMLBufferMgr::bidOnBuffer()
|
|
{
|
|
//
|
|
// Look for a buffer that is not in use. If we hit a null entry, then
|
|
// we have to add one.
|
|
//
|
|
for (XMLSize_t index = 0; index < fBufCount; index++)
|
|
{
|
|
// No more buffers available, so create one and take it
|
|
if (!fBufList[index])
|
|
{
|
|
fBufList[index] = new (fMemoryManager) XMLBuffer(1023, fMemoryManager);
|
|
fBufList[index]->setInUse(true);
|
|
return *fBufList[index];
|
|
}
|
|
|
|
//
|
|
// There's one here, so see if its use. If not, mark it, reset it,
|
|
// and take it
|
|
//
|
|
if (!fBufList[index]->getInUse())
|
|
{
|
|
fBufList[index]->reset();
|
|
fBufList[index]->setInUse(true);
|
|
return *(fBufList[index]);
|
|
}
|
|
}
|
|
|
|
// We did not find one, so freak out
|
|
ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::BufMgr_NoMoreBuffers, fMemoryManager);
|
|
|
|
// NOTE: Dummy return to make some compilers happy. Never really gets called!
|
|
return *fBufList[0];
|
|
}
|
|
|
|
|
|
void XMLBufferMgr::releaseBuffer(XMLBuffer& toRelease)
|
|
{
|
|
// Look for this buffer in the list
|
|
for (XMLSize_t index = 0; index < fBufCount; index++)
|
|
{
|
|
if (fBufList[index] == &toRelease)
|
|
{
|
|
// Unmark it
|
|
toRelease.setInUse(false);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// It was not a legal buffer
|
|
ThrowXMLwithMemMgr(RuntimeException, XMLExcepts::BufMgr_BufferNotInPool, fMemoryManager);
|
|
}
|
|
|
|
XERCES_CPP_NAMESPACE_END
|