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Diffstat (limited to 'boost/interprocess/allocators/detail/adaptive_node_pool.hpp')
-rw-r--r-- | boost/interprocess/allocators/detail/adaptive_node_pool.hpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/boost/interprocess/allocators/detail/adaptive_node_pool.hpp b/boost/interprocess/allocators/detail/adaptive_node_pool.hpp new file mode 100644 index 0000000000..4ccc920663 --- /dev/null +++ b/boost/interprocess/allocators/detail/adaptive_node_pool.hpp @@ -0,0 +1,108 @@ +////////////////////////////////////////////////////////////////////////////// +// +// (C) Copyright Ion Gaztanaga 2005-2011. Distributed under the Boost +// Software License, Version 1.0. (See accompanying file +// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// +// See http://www.boost.org/libs/interprocess for documentation. +// +////////////////////////////////////////////////////////////////////////////// + +#ifndef BOOST_INTERPROCESS_DETAIL_ADAPTIVE_NODE_POOL_HPP +#define BOOST_INTERPROCESS_DETAIL_ADAPTIVE_NODE_POOL_HPP + +#if (defined _MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif + +#include <boost/interprocess/detail/config_begin.hpp> +#include <boost/interprocess/detail/workaround.hpp> +#include <boost/interprocess/detail/utilities.hpp> +#include <boost/interprocess/detail/math_functions.hpp> +#include <boost/intrusive/set.hpp> +#include <boost/intrusive/slist.hpp> +#include <boost/interprocess/detail/type_traits.hpp> +#include <boost/interprocess/mem_algo/detail/mem_algo_common.hpp> +#include <boost/interprocess/allocators/detail/node_tools.hpp> +#include <boost/interprocess/allocators/detail/allocator_common.hpp> +#include <cstddef> +#include <boost/config/no_tr1/cmath.hpp> +#include <boost/container/detail/adaptive_node_pool_impl.hpp> +#include <boost/assert.hpp> + +//!\file +//!Describes the real adaptive pool shared by many Interprocess pool allocators + +namespace boost { +namespace interprocess { +namespace ipcdetail { + +template< class SegmentManager + , std::size_t NodeSize + , std::size_t NodesPerBlock + , std::size_t MaxFreeBlocks + , unsigned char OverheadPercent + > +class private_adaptive_node_pool + : public boost::container::container_detail::private_adaptive_node_pool_impl + <typename SegmentManager::segment_manager_base_type> +{ + typedef boost::container::container_detail::private_adaptive_node_pool_impl + <typename SegmentManager::segment_manager_base_type> base_t; + //Non-copyable + private_adaptive_node_pool(); + private_adaptive_node_pool(const private_adaptive_node_pool &); + private_adaptive_node_pool &operator=(const private_adaptive_node_pool &); + + public: + typedef SegmentManager segment_manager; + typedef typename base_t::size_type size_type; + + static const size_type nodes_per_block = NodesPerBlock; + + //Deprecated, use node_per_block + static const size_type nodes_per_chunk = NodesPerBlock; + + //!Constructor from a segment manager. Never throws + private_adaptive_node_pool(segment_manager *segment_mngr) + : base_t(segment_mngr, NodeSize, NodesPerBlock, MaxFreeBlocks, OverheadPercent) + {} + + //!Returns the segment manager. Never throws + segment_manager* get_segment_manager() const + { return static_cast<segment_manager*>(base_t::get_segment_manager_base()); } +}; + +//!Pooled shared memory allocator using adaptive pool. Includes +//!a reference count but the class does not delete itself, this is +//!responsibility of user classes. Node size (NodeSize) and the number of +//!nodes allocated per block (NodesPerBlock) are known at compile time +template< class SegmentManager + , std::size_t NodeSize + , std::size_t NodesPerBlock + , std::size_t MaxFreeBlocks + , unsigned char OverheadPercent + > +class shared_adaptive_node_pool + : public ipcdetail::shared_pool_impl + < private_adaptive_node_pool + <SegmentManager, NodeSize, NodesPerBlock, MaxFreeBlocks, OverheadPercent> + > +{ + typedef ipcdetail::shared_pool_impl + < private_adaptive_node_pool + <SegmentManager, NodeSize, NodesPerBlock, MaxFreeBlocks, OverheadPercent> + > base_t; + public: + shared_adaptive_node_pool(SegmentManager *segment_mgnr) + : base_t(segment_mgnr) + {} +}; + +} //namespace ipcdetail { +} //namespace interprocess { +} //namespace boost { + +#include <boost/interprocess/detail/config_end.hpp> + +#endif //#ifndef BOOST_INTERPROCESS_DETAIL_ADAPTIVE_NODE_POOL_HPP |