Chris@102: //////////////////////////////////////////////////////////////////////////////
Chris@102: //
Chris@102: // (C) Copyright Ion Gaztanaga 2005-2013. Distributed under the Boost
Chris@102: // Software License, Version 1.0. (See accompanying file
Chris@102: // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@102: //
Chris@102: // See http://www.boost.org/libs/container for documentation.
Chris@102: //
Chris@102: //////////////////////////////////////////////////////////////////////////////
Chris@102: 
Chris@102: #ifndef BOOST_CONTAINER_DETAIL_POOL_COMMON_ALLOC_HPP
Chris@102: #define BOOST_CONTAINER_DETAIL_POOL_COMMON_ALLOC_HPP
Chris@102: 
Chris@102: #ifndef BOOST_CONFIG_HPP
Chris@102: #  include <boost/config.hpp>
Chris@102: #endif
Chris@102: 
Chris@102: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@102: #  pragma once
Chris@102: #endif
Chris@102: 
Chris@102: #include <boost/container/detail/config_begin.hpp>
Chris@102: #include <boost/container/detail/workaround.hpp>
Chris@102: #include <boost/container/throw_exception.hpp>
Chris@102: 
Chris@102: #include <boost/intrusive/slist.hpp>
Chris@102: #include <boost/container/detail/pool_common.hpp>
Chris@102: #include <boost/container/detail/alloc_lib.h>
Chris@102: #include <cstddef>
Chris@102: 
Chris@102: namespace boost{
Chris@102: namespace container{
Chris@102: namespace container_detail{
Chris@102: 
Chris@102: struct node_slist_helper
Chris@102:    : public boost::container::container_detail::node_slist<void*>
Chris@102: {};
Chris@102: 
Chris@102: struct fake_segment_manager
Chris@102: {
Chris@102:    typedef void * void_pointer;
Chris@102:    static const std::size_t PayloadPerAllocation = BOOST_CONTAINER_ALLOCATION_PAYLOAD;
Chris@102: 
Chris@102:    typedef boost::container::container_detail::
Chris@102:       basic_multiallocation_chain<void*>              multiallocation_chain;
Chris@102:    static void deallocate(void_pointer p)
Chris@102:    { boost_cont_free(p); }
Chris@102: 
Chris@102:    static void deallocate_many(multiallocation_chain &chain)
Chris@102:    {
Chris@102:       std::size_t size = chain.size();
Chris@102:       std::pair<void*, void*> ptrs = chain.extract_data();
Chris@102:       boost_cont_memchain dlchain;
Chris@102:       BOOST_CONTAINER_MEMCHAIN_INIT_FROM(&dlchain, ptrs.first, ptrs.second, size);
Chris@102:       boost_cont_multidealloc(&dlchain);
Chris@102:    }
Chris@102: 
Chris@102:    typedef std::ptrdiff_t  difference_type;
Chris@102:    typedef std::size_t     size_type;
Chris@102: 
Chris@102:    static void *allocate_aligned(std::size_t nbytes, std::size_t alignment)
Chris@102:    {
Chris@102:       void *ret = boost_cont_memalign(nbytes, alignment);
Chris@102:       if(!ret)
Chris@102:          boost::container::throw_bad_alloc();
Chris@102:       return ret;
Chris@102:    }
Chris@102: 
Chris@102:    static void *allocate(std::size_t nbytes)
Chris@102:    {
Chris@102:       void *ret = boost_cont_malloc(nbytes);
Chris@102:       if(!ret)
Chris@102:          boost::container::throw_bad_alloc();
Chris@102:       return ret;
Chris@102:    }
Chris@102: };
Chris@102: 
Chris@102: }  //namespace boost{
Chris@102: }  //namespace container{
Chris@102: }  //namespace container_detail{
Chris@102: 
Chris@102: namespace boost {
Chris@102: namespace container {
Chris@102: namespace container_detail {
Chris@102: 
Chris@102: template<class T>
Chris@102: struct is_stateless_segment_manager;
Chris@102: 
Chris@102: template<>
Chris@102: struct is_stateless_segment_manager
Chris@102:    <boost::container::container_detail::fake_segment_manager>
Chris@102: {
Chris@102:    static const bool value = true;
Chris@102: };
Chris@102: 
Chris@102: }  //namespace container_detail {
Chris@102: }  //namespace container {
Chris@102: }  //namespace boost {
Chris@102: 
Chris@102: #include <boost/container/detail/config_end.hpp>
Chris@102: 
Chris@102: #endif   //BOOST_CONTAINER_DETAIL_POOL_COMMON_ALLOC_HPP