112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2005-2012. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/interprocess for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_INTERPROCESS_DETAIL_NODE_POOL_HPP
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#define BOOST_INTERPROCESS_DETAIL_NODE_POOL_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/interprocess/detail/config_begin.hpp>
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#include <boost/interprocess/detail/workaround.hpp>
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#include <boost/intrusive/slist.hpp>
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#include <boost/interprocess/detail/utilities.hpp>
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#include <boost/interprocess/allocators/detail/allocator_common.hpp>
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#include <boost/container/detail/node_pool_impl.hpp>
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#include <cstddef>
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//!\file
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//!Describes the real adaptive pool shared by many Interprocess adaptive pool allocators
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namespace boost {
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namespace interprocess {
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namespace ipcdetail {
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//!Pooled shared memory allocator using single segregated storage. Includes
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//!a reference count but the class does not delete itself, this is
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//!responsibility of user classes. Node size (NodeSize) and the number of
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//!nodes allocated per block (NodesPerBlock) are known at compile time
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template< class SegmentManager, std::size_t NodeSize, std::size_t NodesPerBlock >
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class private_node_pool
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//Inherit from the implementation to avoid template bloat
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: public boost::container::dtl::
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private_node_pool_impl<typename SegmentManager::segment_manager_base_type>
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{
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typedef boost::container::dtl::private_node_pool_impl
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<typename SegmentManager::segment_manager_base_type> base_t;
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//Non-copyable
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private_node_pool();
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private_node_pool(const private_node_pool &);
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private_node_pool &operator=(const private_node_pool &);
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public:
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typedef SegmentManager segment_manager;
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typedef typename base_t::size_type size_type;
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static const size_type nodes_per_block = NodesPerBlock;
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//Deprecated, use nodes_per_block
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static const size_type nodes_per_chunk = NodesPerBlock;
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//!Constructor from a segment manager. Never throws
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private_node_pool(segment_manager *segment_mngr)
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: base_t(segment_mngr, NodeSize, NodesPerBlock)
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{}
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//!Returns the segment manager. Never throws
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segment_manager* get_segment_manager() const
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{ return static_cast<segment_manager*>(base_t::get_segment_manager_base()); }
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};
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//!Pooled shared memory allocator using single segregated storage. Includes
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//!a reference count but the class does not delete itself, this is
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//!responsibility of user classes. Node size (NodeSize) and the number of
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//!nodes allocated per block (NodesPerBlock) are known at compile time
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//!Pooled shared memory allocator using adaptive pool. Includes
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//!a reference count but the class does not delete itself, this is
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//!responsibility of user classes. Node size (NodeSize) and the number of
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//!nodes allocated per block (NodesPerBlock) are known at compile time
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template< class SegmentManager
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, std::size_t NodeSize
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, std::size_t NodesPerBlock
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>
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class shared_node_pool
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: public ipcdetail::shared_pool_impl
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< private_node_pool
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<SegmentManager, NodeSize, NodesPerBlock>
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>
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{
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typedef ipcdetail::shared_pool_impl
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< private_node_pool
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<SegmentManager, NodeSize, NodesPerBlock>
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> base_t;
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public:
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shared_node_pool(SegmentManager *segment_mgnr)
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: base_t(segment_mgnr)
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{}
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};
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} //namespace ipcdetail {
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} //namespace interprocess {
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} //namespace boost {
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#include <boost/interprocess/detail/config_end.hpp>
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#endif //#ifndef BOOST_INTERPROCESS_DETAIL_NODE_POOL_HPP
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