mirror of
https://github.com/pocoproject/poco.git
synced 2024-12-13 02:22:57 +01:00
109 lines
3.1 KiB
C++
109 lines
3.1 KiB
C++
//
|
|
// AutoReleasePool.h
|
|
//
|
|
// $Id: //poco/Main/Foundation/include/Poco/AutoReleasePool.h#2 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Core
|
|
// Module: AutoReleasePool
|
|
//
|
|
// Definition of the AutoReleasePool class.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person or organization
|
|
// obtaining a copy of the software and accompanying documentation covered by
|
|
// this license (the "Software") to use, reproduce, display, distribute,
|
|
// execute, and transmit the Software, and to prepare derivative works of the
|
|
// Software, and to permit third-parties to whom the Software is furnished to
|
|
// do so, all subject to the following:
|
|
//
|
|
// The copyright notices in the Software and this entire statement, including
|
|
// the above license grant, this restriction and the following disclaimer,
|
|
// must be included in all copies of the Software, in whole or in part, and
|
|
// all derivative works of the Software, unless such copies or derivative
|
|
// works are solely in the form of machine-executable object code generated by
|
|
// a source language processor.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
|
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
|
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
|
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
//
|
|
|
|
|
|
#ifndef Foundation_AutoReleasePool_INCLUDED
|
|
#define Foundation_AutoReleasePool_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include <list>
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
template <class C>
|
|
class AutoReleasePool
|
|
/// An AutoReleasePool implements simple garbage collection for
|
|
/// reference-counted objects.
|
|
/// It temporarily takes ownwership of reference-counted objects that
|
|
/// nobody else wants to take ownership of and releases them
|
|
/// at a later, appropriate point in time.
|
|
///
|
|
/// Note: The correct way to add an object hold by an AutoPtr<> to
|
|
/// an AutoReleasePool is by invoking the AutoPtr's duplicate()
|
|
/// method. Example:
|
|
/// AutoReleasePool<C> arp;
|
|
/// AutoPtr<C> ptr = new C;
|
|
/// ...
|
|
/// arp.add(ptr.duplicate());
|
|
{
|
|
public:
|
|
AutoReleasePool()
|
|
/// Creates the AutoReleasePool.
|
|
{
|
|
}
|
|
|
|
~AutoReleasePool()
|
|
/// Destroys the AutoReleasePool and releases
|
|
/// all objects it currently holds.
|
|
{
|
|
release();
|
|
}
|
|
|
|
void add(C* pObject)
|
|
/// Adds the given object to the AutoReleasePool.
|
|
/// The object's reference count is not modified
|
|
{
|
|
if (pObject)
|
|
_list.push_back(pObject);
|
|
}
|
|
|
|
void release()
|
|
/// Releases all objects the AutoReleasePool currently holds
|
|
/// by calling each object's release() method.
|
|
{
|
|
while (!_list.empty())
|
|
{
|
|
_list.front()->release();
|
|
_list.pop_front();
|
|
}
|
|
}
|
|
|
|
private:
|
|
typedef std::list<C*> ObjectList;
|
|
|
|
ObjectList _list;
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_AutoReleasePool_INCLUDED
|