src/hpp/dds/core/WeakReference.hpp

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#ifndef OMG_DDS_CORE_WEAK_REFERENCE_HPP_
#define OMG_DDS_CORE_WEAK_REFERENCE_HPP_

/* Copyright 2010, Object Management Group, Inc.
 * Copyright 2010, PrismTech, Corp.
 * Copyright 2010, Real-Time Innovations, Inc.
 * All rights reserved.
 *
 * Licensed 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.
 */

#include <dds/core/corefwd.hpp>
#include <dds/core/Exception.hpp>
#include <dds/core/Reference.hpp>

namespace dds { namespace core {
template <typename T>
class WeakReference {
public:
        typedef T ReferenceType;

public:
        WeakReference(const T& t) : impl_(t.delegate()) { }

        ~WeakReference() { }

        bool expired() {
                return impl_.expired();
        }

        T lock() {
                return T(impl_.lock());
        }

private:
        typename T::DELEGATE_WEAK_REF_T impl_;
};
}}

#endif /* OMG_DDS_CORE_WEAK_REFERENCE_HPP_ */