diff DEPENDENCIES/generic/include/boost/container/node_allocator.hpp @ 102:f46d142149f5

Whoops, finish that update

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPENDENCIES/generic/include/boost/container/node_allocator.hpp	Mon Sep 07 11:13:41 2015 +0100
@@ -0,0 +1,344 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2008-2013. 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_POOLED_NODE_ALLOCATOR_HPP
+#define BOOST_CONTAINER_POOLED_NODE_ALLOCATOR_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/container_fwd.hpp>
+#include <boost/container/throw_exception.hpp>
+#include <boost/container/detail/node_pool.hpp>
+#include <boost/container/detail/mpl.hpp>
+#include <boost/container/detail/multiallocation_chain.hpp>
+#include <boost/container/detail/alloc_lib_auto_link.hpp>
+#include <boost/container/detail/singleton.hpp>
+
+#include <boost/assert.hpp>
+#include <boost/static_assert.hpp>
+#include <cstddef>
+
+namespace boost {
+namespace container {
+
+//!An STL node allocator that uses a modified DlMalloc as memory
+//!source.
+//!
+//!This node allocator shares a segregated storage between all instances
+//!of node_allocator with equal sizeof(T).
+//!
+//!NodesPerBlock is the number of nodes allocated at once when the allocator
+//!runs out of nodes
+#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
+template
+   < class T
+   , std::size_t NodesPerBlock = NodeAlloc_nodes_per_block>
+#else
+template
+   < class T
+   , std::size_t NodesPerBlock
+   , std::size_t Version>
+#endif
+class node_allocator
+{
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   //! If Version is 1, the allocator is a STL conforming allocator. If Version is 2,
+   //! the allocator offers advanced expand in place and burst allocation capabilities.
+   public:
+   typedef unsigned int allocation_type;
+   typedef node_allocator<T, NodesPerBlock, Version>   self_t;
+
+   static const std::size_t nodes_per_block = NodesPerBlock;
+
+   BOOST_STATIC_ASSERT((Version <=2));
+   #endif
+
+   public:
+   //-------
+   typedef T                                    value_type;
+   typedef T *                                  pointer;
+   typedef const T *                            const_pointer;
+   typedef typename ::boost::container::
+      container_detail::unvoid<T>::type &       reference;
+   typedef const typename ::boost::container::
+      container_detail::unvoid<T>::type &       const_reference;
+   typedef std::size_t                          size_type;
+   typedef std::ptrdiff_t                       difference_type;
+
+   typedef boost::container::container_detail::
+      version_type<self_t, Version>             version;
+
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   typedef boost::container::container_detail::
+      basic_multiallocation_chain<void*>              multiallocation_chain_void;
+   typedef boost::container::container_detail::
+      transform_multiallocation_chain
+         <multiallocation_chain_void, T>              multiallocation_chain;
+   #endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+   //!Obtains node_allocator from
+   //!node_allocator
+   template<class T2>
+   struct rebind
+   {
+      typedef node_allocator< T2, NodesPerBlock
+                            #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+                            , Version
+                            #endif
+                            > other;
+   };
+
+   #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+   private:
+   //!Not assignable from related node_allocator
+   template<class T2, std::size_t N2>
+   node_allocator& operator=
+      (const node_allocator<T2, N2>&);
+
+   //!Not assignable from other node_allocator
+   node_allocator& operator=(const node_allocator&);
+   #endif   //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+   public:
+
+   //!Default constructor
+   node_allocator() BOOST_NOEXCEPT_OR_NOTHROW
+   {}
+
+   //!Copy constructor from other node_allocator.
+   node_allocator(const node_allocator &) BOOST_NOEXCEPT_OR_NOTHROW
+   {}
+
+   //!Copy constructor from related node_allocator.
+   template<class T2>
+   node_allocator
+      (const node_allocator<T2, NodesPerBlock
+            #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+            , Version
+            #endif
+            > &) BOOST_NOEXCEPT_OR_NOTHROW
+   {}
+
+   //!Destructor
+   ~node_allocator() BOOST_NOEXCEPT_OR_NOTHROW
+   {}
+
+   //!Returns the number of elements that could be allocated.
+   //!Never throws
+   size_type max_size() const
+   {  return size_type(-1)/sizeof(T);   }
+
+   //!Allocate memory for an array of count elements.
+   //!Throws std::bad_alloc if there is no enough memory
+   pointer allocate(size_type count, const void * = 0)
+   {
+      if(BOOST_UNLIKELY(count > this->max_size()))
+         boost::container::throw_bad_alloc();
+
+      if(Version == 1 && count == 1){
+         typedef container_detail::shared_node_pool
+            <sizeof(T), NodesPerBlock> shared_pool_t;
+         typedef container_detail::singleton_default<shared_pool_t> singleton_t;
+         return pointer(static_cast<T*>(singleton_t::instance().allocate_node()));
+      }
+      else{
+         void *ret = boost_cont_malloc(count*sizeof(T));
+         if(BOOST_UNLIKELY(!ret))
+            boost::container::throw_bad_alloc();
+         return static_cast<pointer>(ret);
+      }
+   }
+
+   //!Deallocate allocated memory.
+   //!Never throws
+   void deallocate(const pointer &ptr, size_type count) BOOST_NOEXCEPT_OR_NOTHROW
+   {
+      (void)count;
+      if(Version == 1 && count == 1){
+         typedef container_detail::shared_node_pool
+            <sizeof(T), NodesPerBlock> shared_pool_t;
+         typedef container_detail::singleton_default<shared_pool_t> singleton_t;
+         singleton_t::instance().deallocate_node(ptr);
+      }
+      else{
+         boost_cont_free(ptr);
+      }
+   }
+
+   //!Deallocates all free blocks of the pool
+   static void deallocate_free_blocks() BOOST_NOEXCEPT_OR_NOTHROW
+   {
+      typedef container_detail::shared_node_pool
+         <sizeof(T), NodesPerBlock> shared_pool_t;
+      typedef container_detail::singleton_default<shared_pool_t> singleton_t;
+      singleton_t::instance().deallocate_free_blocks();
+   }
+
+   pointer allocation_command
+      (allocation_type command, size_type limit_size, size_type &prefer_in_recvd_out_size, pointer &reuse)
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      pointer ret = this->priv_allocation_command(command, limit_size, prefer_in_recvd_out_size, reuse);
+      if(BOOST_UNLIKELY(!ret && !(command & BOOST_CONTAINER_NOTHROW_ALLOCATION)))
+         boost::container::throw_bad_alloc();
+      return ret;
+   }
+
+   //!Returns maximum the number of objects the previously allocated memory
+   //!pointed by p can hold.
+   size_type size(pointer p) const BOOST_NOEXCEPT_OR_NOTHROW
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      return boost_cont_size(p);
+   }
+
+   //!Allocates just one object. Memory allocated with this function
+   //!must be deallocated only with deallocate_one().
+   //!Throws bad_alloc if there is no enough memory
+   pointer allocate_one()
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      typedef container_detail::shared_node_pool
+         <sizeof(T), NodesPerBlock> shared_pool_t;
+      typedef container_detail::singleton_default<shared_pool_t> singleton_t;
+      return (pointer)singleton_t::instance().allocate_node();
+   }
+
+   //!Allocates many elements of size == 1.
+   //!Elements must be individually deallocated with deallocate_one()
+   void allocate_individual(std::size_t num_elements, multiallocation_chain &chain)
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      typedef container_detail::shared_node_pool
+         <sizeof(T), NodesPerBlock> shared_pool_t;
+      typedef container_detail::singleton_default<shared_pool_t> singleton_t;
+      typename shared_pool_t::multiallocation_chain ch;
+      singleton_t::instance().allocate_nodes(num_elements, ch);
+      chain.incorporate_after(chain.before_begin(), (T*)&*ch.begin(), (T*)&*ch.last(), ch.size());
+   }
+
+   //!Deallocates memory previously allocated with allocate_one().
+   //!You should never use deallocate_one to deallocate memory allocated
+   //!with other functions different from allocate_one(). Never throws
+   void deallocate_one(pointer p) BOOST_NOEXCEPT_OR_NOTHROW
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      typedef container_detail::shared_node_pool
+         <sizeof(T), NodesPerBlock> shared_pool_t;
+      typedef container_detail::singleton_default<shared_pool_t> singleton_t;
+      singleton_t::instance().deallocate_node(p);
+   }
+
+   void deallocate_individual(multiallocation_chain &chain) BOOST_NOEXCEPT_OR_NOTHROW
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      typedef container_detail::shared_node_pool
+         <sizeof(T), NodesPerBlock> shared_pool_t;
+      typedef container_detail::singleton_default<shared_pool_t> singleton_t;
+      typename shared_pool_t::multiallocation_chain ch(&*chain.begin(), &*chain.last(), chain.size());
+      singleton_t::instance().deallocate_nodes(ch);
+   }
+
+   //!Allocates many elements of size elem_size.
+   //!Elements must be individually deallocated with deallocate()
+   void allocate_many(size_type elem_size, std::size_t n_elements, multiallocation_chain &chain)
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      boost_cont_memchain ch;
+      BOOST_CONTAINER_MEMCHAIN_INIT(&ch);
+      if(BOOST_UNLIKELY(!boost_cont_multialloc_nodes(n_elements, elem_size*sizeof(T), DL_MULTIALLOC_DEFAULT_CONTIGUOUS, &ch))){
+         boost::container::throw_bad_alloc();
+      }
+      chain.incorporate_after( chain.before_begin()
+                             , (T*)BOOST_CONTAINER_MEMCHAIN_LASTMEM(&ch)
+                             , (T*)BOOST_CONTAINER_MEMCHAIN_LASTMEM(&ch)
+                             , BOOST_CONTAINER_MEMCHAIN_SIZE(&ch));
+   }
+
+   //!Allocates n_elements elements, each one of size elem_sizes[i]
+   //!Elements must be individually deallocated with deallocate()
+   void allocate_many(const size_type *elem_sizes, size_type n_elements, multiallocation_chain &chain)
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      boost_cont_memchain ch;
+      boost_cont_multialloc_arrays(n_elements, elem_sizes, sizeof(T), DL_MULTIALLOC_DEFAULT_CONTIGUOUS, &ch);
+      if(BOOST_UNLIKELY(BOOST_CONTAINER_MEMCHAIN_EMPTY(&ch))){
+         boost::container::throw_bad_alloc();
+      }
+      chain.incorporate_after( chain.before_begin()
+                             , (T*)BOOST_CONTAINER_MEMCHAIN_LASTMEM(&ch)
+                             , (T*)BOOST_CONTAINER_MEMCHAIN_LASTMEM(&ch)
+                             , BOOST_CONTAINER_MEMCHAIN_SIZE(&ch));
+   }
+
+   void deallocate_many(multiallocation_chain &chain) BOOST_NOEXCEPT_OR_NOTHROW
+   {
+      BOOST_STATIC_ASSERT(( Version > 1 ));
+      void *first = &*chain.begin();
+      void *last  = &*chain.last();
+      size_t num  = chain.size();
+      boost_cont_memchain ch;
+      BOOST_CONTAINER_MEMCHAIN_INIT_FROM(&ch, first, last, num);
+      boost_cont_multidealloc(&ch);
+   }
+
+   //!Swaps allocators. Does not throw. If each allocator is placed in a
+   //!different memory segment, the result is undefined.
+   friend void swap(self_t &, self_t &) BOOST_NOEXCEPT_OR_NOTHROW
+   {}
+
+   //!An allocator always compares to true, as memory allocated with one
+   //!instance can be deallocated by another instance
+   friend bool operator==(const node_allocator &, const node_allocator &) BOOST_NOEXCEPT_OR_NOTHROW
+   {  return true;   }
+
+   //!An allocator always compares to false, as memory allocated with one
+   //!instance can be deallocated by another instance
+   friend bool operator!=(const node_allocator &, const node_allocator &) BOOST_NOEXCEPT_OR_NOTHROW
+   {  return false;   }
+
+   private:
+   pointer priv_allocation_command
+      (allocation_type command,   std::size_t limit_size
+      ,size_type &prefer_in_recvd_out_size
+      ,pointer &reuse)
+   {
+      std::size_t const preferred_size = prefer_in_recvd_out_size;
+      boost_cont_command_ret_t ret = {0 , 0};
+      if((limit_size > this->max_size()) | (preferred_size > this->max_size())){
+         return pointer();
+      }
+      std::size_t l_size = limit_size*sizeof(T);
+      std::size_t p_size = preferred_size*sizeof(T);
+      std::size_t r_size;
+      {
+         void* reuse_ptr_void = reuse;
+         ret = boost_cont_allocation_command(command, sizeof(T), l_size, p_size, &r_size, reuse_ptr_void);
+         reuse = static_cast<T*>(reuse_ptr_void);
+      }
+      prefer_in_recvd_out_size = r_size/sizeof(T);
+      return (pointer)ret.first;
+   }
+};
+
+}  //namespace container {
+}  //namespace boost {
+
+#include <boost/container/detail/config_end.hpp>
+
+#endif   //#ifndef BOOST_CONTAINER_POOLED_NODE_ALLOCATOR_HPP