Add boost::icl::interval_map

boost/container/detail/allocator_version_traits.hpp

@@ -0,0 +1,162 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2012-2013. 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_ALLOCATOR_VERSION_TRAITS_HPP
+#define BOOST_CONTAINER_DETAIL_ALLOCATOR_VERSION_TRAITS_HPP
+
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
+
+#include <boost/container/detail/config_begin.hpp>
+#include <boost/container/detail/workaround.hpp>
+
+#include <boost/container/allocator_traits.hpp>             //allocator_traits
+#include <boost/container/throw_exception.hpp>
+#include <boost/container/detail/multiallocation_chain.hpp> //multiallocation_chain
+#include <boost/container/detail/version_type.hpp>          //version_type
+#include <boost/container/detail/allocation_type.hpp>       //allocation_type
+#include <boost/container/detail/mpl.hpp>                   //integral_constant
+#include <boost/intrusive/pointer_traits.hpp>               //pointer_traits
+#include <boost/core/no_exceptions_support.hpp>             //BOOST_TRY
+
+namespace boost {
+namespace container {
+namespace container_detail {
+
+template<class Allocator, unsigned Version = boost::container::container_detail::version<Allocator>::value>
+struct allocator_version_traits
+{
+   typedef ::boost::container::container_detail::integral_constant
+      <unsigned, Version> alloc_version;
+
+   typedef typename Allocator::multiallocation_chain multiallocation_chain;
+
+   typedef typename boost::container::allocator_traits<Allocator>::pointer    pointer;
+   typedef typename boost::container::allocator_traits<Allocator>::size_type  size_type;
+
+   //Node allocation interface
+   static pointer allocate_one(Allocator &a)
+   {  return a.allocate_one();   }
+
+   static void deallocate_one(Allocator &a, const pointer &p)
+   {  a.deallocate_one(p);   }
+
+   static void allocate_individual(Allocator &a, size_type n, multiallocation_chain &m)
+   {  return a.allocate_individual(n, m);   }
+
+   static void deallocate_individual(Allocator &a, multiallocation_chain &holder)
+   {  a.deallocate_individual(holder);   }
+
+   static pointer allocation_command(Allocator &a, allocation_type command,
+                         size_type limit_size, size_type &prefer_in_recvd_out_size, pointer &reuse)
+   {  return a.allocation_command(command, limit_size, prefer_in_recvd_out_size, reuse);  }
+};
+
+template<class Allocator>
+struct allocator_version_traits<Allocator, 1>
+{
+   typedef ::boost::container::container_detail::integral_constant
+      <unsigned, 1> alloc_version;
+
+   typedef typename boost::container::allocator_traits<Allocator>::pointer    pointer;
+   typedef typename boost::container::allocator_traits<Allocator>::size_type  size_type;
+   typedef typename boost::container::allocator_traits<Allocator>::value_type value_type;
+
+   typedef typename boost::intrusive::pointer_traits<pointer>::
+         template rebind_pointer<void>::type                void_ptr;
+   typedef container_detail::basic_multiallocation_chain
+      <void_ptr>                                            multialloc_cached_counted;
+   typedef boost::container::container_detail::
+      transform_multiallocation_chain
+         < multialloc_cached_counted, value_type>           multiallocation_chain;
+
+   //Node allocation interface
+   static pointer allocate_one(Allocator &a)
+   {  return a.allocate(1);   }
+
+   static void deallocate_one(Allocator &a, const pointer &p)
+   {  a.deallocate(p, 1);   }
+
+   static void deallocate_individual(Allocator &a, multiallocation_chain &holder)
+   {
+      size_type n = holder.size();
+      typename multiallocation_chain::iterator it = holder.begin();
+      while(n--){
+         pointer p = boost::intrusive::pointer_traits<pointer>::pointer_to(*it);
+         ++it;
+         a.deallocate(p, 1);
+      }
+   }
+
+   struct allocate_individual_rollback
+   {
+      allocate_individual_rollback(Allocator &a, multiallocation_chain &chain)
+         : mr_a(a), mp_chain(&chain)
+      {}
+
+      ~allocate_individual_rollback()
+      {
+         if(mp_chain)
+            allocator_version_traits::deallocate_individual(mr_a, *mp_chain);
+      }
+
+      void release()
+      {
+         mp_chain = 0;
+      }
+
+      Allocator &mr_a;
+      multiallocation_chain * mp_chain;
+   };
+
+   static void allocate_individual(Allocator &a, size_type n, multiallocation_chain &m)
+   {
+      allocate_individual_rollback rollback(a, m);
+      while(n--){
+         m.push_front(a.allocate(1));
+      }
+      rollback.release();
+   }
+
+   static pointer allocation_command(Allocator &a, allocation_type command,
+                         size_type, size_type &prefer_in_recvd_out_size, pointer &reuse)
+   {
+      pointer ret = pointer();
+      if(BOOST_UNLIKELY(!(command & allocate_new) && !(command & nothrow_allocation))){
+         throw_logic_error("version 1 allocator without allocate_new flag");
+      }
+      else{
+         BOOST_TRY{
+            ret = a.allocate(prefer_in_recvd_out_size);
+         }
+         BOOST_CATCH(...){
+            if(!(command & nothrow_allocation)){
+               BOOST_RETHROW
+            }
+         }
+         BOOST_CATCH_END
+         reuse = pointer();
+      }
+      return ret;
+   }
+};
+
+}  //namespace container_detail {
+}  //namespace container {
+}  //namespace boost {
+
+#include <boost/container/detail/config_end.hpp>
+
+#endif // ! defined(BOOST_CONTAINER_DETAIL_ALLOCATOR_VERSION_TRAITS_HPP)