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Diffstat (limited to 'qpid/cpp/src/qpid/RefCounted.h')
-rw-r--r-- | qpid/cpp/src/qpid/RefCounted.h | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/qpid/cpp/src/qpid/RefCounted.h b/qpid/cpp/src/qpid/RefCounted.h deleted file mode 100644 index c325b204d4..0000000000 --- a/qpid/cpp/src/qpid/RefCounted.h +++ /dev/null @@ -1,86 +0,0 @@ -#ifndef QPID_REFCOUNTED_H -#define QPID_REFCOUNTED_H - -/* - * - * 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. - * - */ - -#include "qpid/sys/AtomicCount.h" - -#include <boost/intrusive_ptr.hpp> - - -namespace qpid { - -/** Abstract interface for reference counted objects */ -class AbstractRefCounted { - public: - virtual void addRef() const=0; - virtual void release() const=0; - protected: - virtual ~AbstractRefCounted() {} -}; - -/** - * Reference-counted base class. - */ -class RefCounted : public AbstractRefCounted { - public: - RefCounted() {} - virtual void addRef() const { ++count; } - virtual void release() const { if (--count==0) released(); } - - protected: - virtual ~RefCounted() {}; - // Copy/assign do not copy refcounts. - RefCounted(const RefCounted&) : AbstractRefCounted() {} - RefCounted& operator=(const RefCounted&) { return *this; } - virtual void released() const { assert(count==0); delete this; } - - mutable sys::AtomicCount count; -}; - -/** - * Reference-counted member of a reference-counted parent class. - * Delegates reference counts to the parent so that the parent is - * deleted only when there are no references to the parent or any of - * its children. - */ -struct RefCountedChild : public AbstractRefCounted { - protected: - AbstractRefCounted& parent; - RefCountedChild(AbstractRefCounted& parent_) : parent(parent_) {} - public: - void addRef() const { parent.addRef(); } - void release() const { parent.release(); } -}; - -using boost::intrusive_ptr; - -} // namespace qpid - -// intrusive_ptr support. -namespace boost { -inline void intrusive_ptr_add_ref(const qpid::AbstractRefCounted* p) { p->addRef(); } -inline void intrusive_ptr_release(const qpid::AbstractRefCounted* p) { p->release(); } -} - - -#endif /*!QPID_REFCOUNTED_H*/ |