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Diffstat (limited to 'boost/container/detail/pool_common_alloc.hpp')
-rw-r--r-- | boost/container/detail/pool_common_alloc.hpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/boost/container/detail/pool_common_alloc.hpp b/boost/container/detail/pool_common_alloc.hpp new file mode 100644 index 0000000000..dfae7efd13 --- /dev/null +++ b/boost/container/detail/pool_common_alloc.hpp @@ -0,0 +1,98 @@ +////////////////////////////////////////////////////////////////////////////// +// +// (C) Copyright Ion Gaztanaga 2005-2013. 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/container for documentation. +// +////////////////////////////////////////////////////////////////////////////// + +#ifndef BOOST_CONTAINER_DETAIL_POOL_COMMON_ALLOC_HPP +#define BOOST_CONTAINER_DETAIL_POOL_COMMON_ALLOC_HPP + +#if defined(_MSC_VER) +# pragma once +#endif + +#include <boost/container/detail/config_begin.hpp> +#include <boost/container/detail/workaround.hpp> +#include <boost/container/throw_exception.hpp> + +#include <boost/intrusive/slist.hpp> +#include <boost/container/detail/pool_common.hpp> +#include <boost/container/detail/alloc_lib.h> +#include <cstddef> + +namespace boost{ +namespace container{ +namespace container_detail{ + +struct node_slist_helper + : public boost::container::container_detail::node_slist<void*> +{}; + +struct fake_segment_manager +{ + typedef void * void_pointer; + static const std::size_t PayloadPerAllocation = BOOST_CONTAINER_ALLOCATION_PAYLOAD; + + typedef boost::container::container_detail:: + basic_multiallocation_chain<void*> multiallocation_chain; + static void deallocate(void_pointer p) + { boost_cont_free(p); } + + static void deallocate_many(multiallocation_chain &chain) + { + std::size_t size = chain.size(); + std::pair<void*, void*> ptrs = chain.extract_data(); + boost_cont_memchain dlchain; + BOOST_CONTAINER_MEMCHAIN_INIT_FROM(&dlchain, ptrs.first, ptrs.second, size); + boost_cont_multidealloc(&dlchain); + } + + typedef std::ptrdiff_t difference_type; + typedef std::size_t size_type; + + static void *allocate_aligned(std::size_t nbytes, std::size_t alignment) + { + void *ret = boost_cont_memalign(nbytes, alignment); + if(!ret) + boost::container::throw_bad_alloc(); + return ret; + } + + static void *allocate(std::size_t nbytes) + { + void *ret = boost_cont_malloc(nbytes); + if(!ret) + boost::container::throw_bad_alloc(); + return ret; + } +}; + +} //namespace boost{ +} //namespace container{ +} //namespace container_detail{ + +namespace boost { +namespace container { +namespace container_detail { + +template<class T> +struct is_stateless_segment_manager; + +template<> +struct is_stateless_segment_manager + <boost::container::container_detail::fake_segment_manager> +{ + static const bool value = true; +}; + +} //namespace container_detail { +} //namespace container { +} //namespace boost { + +#include <boost/container/detail/config_end.hpp> + +#endif //BOOST_CONTAINER_DETAIL_POOL_COMMON_ALLOC_HPP |