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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _SALHELPER_QUEUE_HXX_
#define _SALHELPER_QUEUE_HXX_
#include <sal/types.h>
#include <osl/diagnose.h>
#include <osl/mutex.hxx>
#include <osl/semaphor.hxx>
#ifndef __LIST__
#include <list>
#endif
namespace salhelper
{
//----------------------------------------------------------------------------
#ifndef SALHELPER_COPYCTOR_API
#define SALHELPER_COPYCTOR_API(C) C (const C&); C& operator= (const C&)
#endif
//----------------------------------------------------------------------------
template<class element_type>
class QueueBase : protected std::list<element_type>
{
/** Representation.
*/
osl::Mutex m_aMutex;
/** Not implemented.
*/
SALHELPER_COPYCTOR_API(QueueBase<element_type>);
public:
inline QueueBase()
{}
inline ~QueueBase()
{
erase (this->begin(), this->end());
}
inline void put (const element_type& element)
{
osl::MutexGuard aGuard (m_aMutex);
push_back (element);
}
inline element_type get()
{
element_type element;
osl::MutexGuard aGuard (m_aMutex);
if (!this->empty())
{
element = this->front();
this->pop_front();
}
return (element);
}
};
//----------------------------------------------------------------------------
/** Queue.
@deprecated
Must not be used, as it internally uses unnamed semaphores, which are not
supported on Mac OS X.
*/
template<class element_type>
class Queue : protected QueueBase<element_type>
{
/** Representation.
*/
osl::Semaphore m_aNotEmpty;
/** Not implemented.
*/
SALHELPER_COPYCTOR_API(Queue<element_type>);
public:
inline Queue() : m_aNotEmpty (static_cast< sal_uInt32 >(0))
{}
inline ~Queue()
{}
inline void put (const element_type& element)
{
QueueBase<element_type>::put (element);
m_aNotEmpty.release();
}
inline element_type get()
{
element_type element;
m_aNotEmpty.acquire();
element = QueueBase<element_type>::get();
return (element);
}
};
//----------------------------------------------------------------------------
/** Bounded queue.
@deprecated
Must not be used, as it internally uses unnamed semaphores, which are not
supported on Mac OS X.
*/
template<class element_type>
class BoundedQueue : protected Queue<element_type>
{
/** Representation.
*/
osl::Semaphore m_aNotFull;
/** Not implemented.
*/
SALHELPER_COPYCTOR_API(BoundedQueue<element_type>);
public:
inline BoundedQueue (sal_uInt32 capacity) : m_aNotFull (capacity)
{
OSL_POSTCOND(capacity, "BoundedQueue:BoundedQueue(): no capacity");
}
inline ~BoundedQueue()
{}
inline void put (const element_type& element)
{
m_aNotFull.acquire();
Queue<element_type>::put (element);
}
inline element_type get()
{
element_type element;
element = Queue<element_type>::get();
m_aNotFull.release();
return (element);
}
};
//----------------------------------------------------------------------------
} // namespace salhelper
#endif /* !_SALHELPER_QUEUE_HXX_ */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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