89 строки
1.8 KiB
C++
89 строки
1.8 KiB
C++
//
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// AutoReleasePool.h
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//
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// $Id: //poco/1.4/Foundation/include/Poco/AutoReleasePool.h#1 $
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//
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// Library: Foundation
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// Package: Core
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// Module: AutoReleasePool
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//
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// Definition of the AutoReleasePool class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_AutoReleasePool_INCLUDED
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#define Foundation_AutoReleasePool_INCLUDED
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#include "Poco/Foundation.h"
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#include <list>
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namespace Poco {
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template <class C>
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class AutoReleasePool
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/// An AutoReleasePool implements simple garbage collection for
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/// reference-counted objects.
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/// It temporarily takes ownwership of reference-counted objects that
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/// nobody else wants to take ownership of and releases them
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/// at a later, appropriate point in time.
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///
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/// Note: The correct way to add an object hold by an AutoPtr<> to
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/// an AutoReleasePool is by invoking the AutoPtr's duplicate()
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/// method. Example:
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/// AutoReleasePool<C> arp;
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/// AutoPtr<C> ptr = new C;
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/// ...
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/// arp.add(ptr.duplicate());
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{
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public:
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AutoReleasePool()
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/// Creates the AutoReleasePool.
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{
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}
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~AutoReleasePool()
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/// Destroys the AutoReleasePool and releases
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/// all objects it currently holds.
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{
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release();
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}
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void add(C* pObject)
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/// Adds the given object to the AutoReleasePool.
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/// The object's reference count is not modified
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{
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if (pObject)
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_list.push_back(pObject);
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}
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void release()
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/// Releases all objects the AutoReleasePool currently holds
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/// by calling each object's release() method.
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{
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while (!_list.empty())
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{
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_list.front()->release();
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_list.pop_front();
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}
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}
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private:
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typedef std::list<C*> ObjectList;
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ObjectList _list;
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};
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} // namespace Poco
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#endif // Foundation_AutoReleasePool_INCLUDED
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