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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.
*
*************************************************************/
#ifndef _SD_SIMPLEREFERENCECOMPONENT_HXX_
#define _SD_SIMPLEREFERENCECOMPONENT_HXX_
#include "osl/interlck.h"
#include "sal/types.h"
#include <cstddef>
#include <new>
#include <sddllapi.h>
namespace sd {
/** A simple base implementation for reference-counted components.
acts like sal::SimpleReferenceObject but calls the virtual disposing()
methods before the ref count switches from 1 to zero.
*/
class SimpleReferenceComponent
{
public:
SimpleReferenceComponent();
/** @ATTENTION
The results are undefined if, for any individual instance of
SimpleReferenceComponent, the total number of calls to acquire() exceeds
the total number of calls to release() by a plattform dependent amount
(which, hopefully, is quite large).
*/
SD_DLLPUBLIC void acquire();
SD_DLLPUBLIC void release();
void Dispose();
bool isDisposed() const { return mbDisposed; }
/** see general class documentation
*/
static void * operator new(std::size_t nSize) SAL_THROW((std::bad_alloc));
/** see general class documentation
*/
static void * operator new(std::size_t nSize,
std::nothrow_t const & rNothrow)
;
/** see general class documentation
*/
static void operator delete(void * pPtr);
/** see general class documentation
*/
static void operator delete(void * pPtr, std::nothrow_t const & rNothrow)
;
protected:
virtual void disposing();
virtual ~SimpleReferenceComponent();
private:
oslInterlockedCount m_nCount;
/** not implemented
@internal
*/
SimpleReferenceComponent(SimpleReferenceComponent &);
/** not implemented
@internal
*/
void operator =(SimpleReferenceComponent);
/** not implemented (see general class documentation)
@internal
*/
static void * operator new[](std::size_t);
/** not implemented (see general class documentation)
@internal
*/
static void operator delete[](void * pPtr);
bool mbDisposed;
};
}
#endif // _SALHELPER_SimpleReferenceComponent_HXX_
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