#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
private:
//!Not assignable from related adaptive_pool
- template<class T2, unsigned Version2, std::size_t N2, std::size_t F2>
+ template<class T2, std::size_t N2, std::size_t F2, std::size_t O2, unsigned Version2>
adaptive_pool& operator=
- (const adaptive_pool<T2, Version2, N2, F2>&);
+ (const adaptive_pool<T2, N2, F2, O2, Version2>&);
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
adaptive_pool(const adaptive_pool &) BOOST_NOEXCEPT_OR_NOTHROW
{}
+ //!Copy assignment from other adaptive_pool.
+ adaptive_pool & operator=(const adaptive_pool &) BOOST_NOEXCEPT_OR_NOTHROW
+ { return *this; }
+
//!Copy constructor from related adaptive_pool.
template<class T2>
adaptive_pool
//!Returns the number of elements that could be allocated.
//!Never throws
size_type max_size() const BOOST_NOEXCEPT_OR_NOTHROW
- { return size_type(-1)/sizeof(T); }
+ { return size_type(-1)/(2u*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()))
+ if(BOOST_UNLIKELY(count > size_type(-1)/(2u*sizeof(T))))
boost::container::throw_bad_alloc();
if(Version == 1 && count == 1){
BOOST_STATIC_ASSERT(( Version > 1 ));/*
dlmalloc_memchain ch;
BOOST_CONTAINER_MEMCHAIN_INIT(&ch);
- if(BOOST_UNLIKELY(!dlmalloc_multialloc_nodes(n_elements, elem_size*sizeof(T), DL_MULTIALLOC_DEFAULT_CONTIGUOUS, &ch))){
+ if(BOOST_UNLIKELY(!dlmalloc_multialloc_nodes(n_elements, elem_size*sizeof(T), BOOST_CONTAINER_DL_MULTIALLOC_DEFAULT_CONTIGUOUS, &ch))){
boost::container::throw_bad_alloc();
}
chain.incorporate_after(chain.before_begin()
,(T*)BOOST_CONTAINER_MEMCHAIN_LASTMEM(&ch)
,BOOST_CONTAINER_MEMCHAIN_SIZE(&ch) );*/
if(BOOST_UNLIKELY(!dlmalloc_multialloc_nodes
- (n_elements, elem_size*sizeof(T), DL_MULTIALLOC_DEFAULT_CONTIGUOUS, reinterpret_cast<dlmalloc_memchain *>(&chain)))){
+ (n_elements, elem_size*sizeof(T),
BOOST_CONTAINER_DL_MULTIALLOC_DEFAULT_CONTIGUOUS, reinterpret_cast<dlmalloc_memchain *>(&chain)))){
boost::container::throw_bad_alloc();
}
}
BOOST_STATIC_ASSERT(( Version > 1 ));/*
dlmalloc_memchain ch;
BOOST_CONTAINER_MEMCHAIN_INIT(&ch);
- if(BOOST_UNLIKELY(!dlmalloc_multialloc_arrays(n_elements, elem_sizes, sizeof(T), DL_MULTIALLOC_DEFAULT_CONTIGUOUS, &ch))){
+ if(BOOST_UNLIKELY(!dlmalloc_multialloc_arrays(n_elements, elem_sizes, sizeof(T), BOOST_CONTAINER_DL_MULTIALLOC_DEFAULT_CONTIGUOUS, &ch))){
boost::container::throw_bad_alloc();
}
chain.incorporate_after(chain.before_begin()
,(T*)BOOST_CONTAINER_MEMCHAIN_LASTMEM(&ch)
,BOOST_CONTAINER_MEMCHAIN_SIZE(&ch) );*/
if(BOOST_UNLIKELY(!dlmalloc_multialloc_arrays
- (n_elements, elem_sizes, sizeof(T), DL_MULTIALLOC_DEFAULT_CONTIGUOUS, reinterpret_cast<dlmalloc_memchain *>(&chain)))){
+ (n_elements, elem_sizes, sizeof(T),
BOOST_CONTAINER_DL_MULTIALLOC_DEFAULT_CONTIGUOUS, reinterpret_cast<dlmalloc_memchain *>(&chain)))){
boost::container::throw_bad_alloc();
}
}
}
};
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+template < class T
+ , std::size_t NodesPerBlock = ADP_nodes_per_block
+ , std::size_t MaxFreeBlocks = ADP_max_free_blocks
+ , std::size_t OverheadPercent = ADP_overhead_percent
+ , unsigned Version = 2
+ >
+class private_adaptive_pool
+{
+ //!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 private_adaptive_pool
+ <T, NodesPerBlock, MaxFreeBlocks, OverheadPercent
+ BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I Version)
+ > self_t;
+
+ static const std::size_t nodes_per_block = NodesPerBlock;
+ static const std::size_t max_free_blocks = MaxFreeBlocks;
+ static const std::size_t overhead_percent = OverheadPercent;
+ static const std::size_t real_nodes_per_block = NodesPerBlock;
+
+ BOOST_CONTAINER_DOCIGN(BOOST_STATIC_ASSERT((Version <=2)));
+
+ typedef dtl::private_adaptive_node_pool
+ <sizeof(T), NodesPerBlock, MaxFreeBlocks, OverheadPercent> pool_t;
+ pool_t m_pool;
+
+ public:
+ //-------
+ typedef T value_type;
+ typedef T * pointer;
+ typedef const T * const_pointer;
+ typedef typename ::boost::container::
+ dtl::unvoid_ref<T>::type reference;
+ typedef typename ::boost::container::
+ dtl::unvoid_ref<const T>::type const_reference;
+ typedef std::size_t size_type;
+ typedef std::ptrdiff_t difference_type;
+
+ typedef boost::container::dtl::
+ version_type<self_t, Version> version;
+
+ #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+ typedef boost::container::dtl::
+ basic_multiallocation_chain<void*> multiallocation_chain_void;
+ typedef boost::container::dtl::
+ transform_multiallocation_chain
+ <multiallocation_chain_void, T> multiallocation_chain;
+ #endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+ //!Obtains private_adaptive_pool from
+ //!private_adaptive_pool
+ template<class T2>
+ struct rebind
+ {
+ typedef private_adaptive_pool
+ < T2
+ , NodesPerBlock
+ , MaxFreeBlocks
+ , OverheadPercent
+ BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I Version)
+ > other;
+ };
+
+ #ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+ private:
+ //!Not assignable from related private_adaptive_pool
+ template<class T2, std::size_t N2, std::size_t F2, std::size_t O2, unsigned Version2>
+ private_adaptive_pool& operator=
+ (const private_adaptive_pool<T2, N2, F2, O2, Version2>&);
+ #endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
+
+ public:
+ //!Default constructor
+ private_adaptive_pool() BOOST_NOEXCEPT_OR_NOTHROW
+ {}
+
+ //!Copy constructor from other private_adaptive_pool.
+ private_adaptive_pool(const private_adaptive_pool &) BOOST_NOEXCEPT_OR_NOTHROW
+ {}
+
+ //!Copy assignment from other adaptive_pool.
+ private_adaptive_pool & operator=(const private_adaptive_pool &) BOOST_NOEXCEPT_OR_NOTHROW
+ { return *this; }
+
+ //!Copy constructor from related private_adaptive_pool.
+ template<class T2>
+ private_adaptive_pool
+ (const private_adaptive_pool<T2, NodesPerBlock, MaxFreeBlocks, OverheadPercent
+ BOOST_CONTAINER_DOCIGN(BOOST_MOVE_I Version)> &) BOOST_NOEXCEPT_OR_NOTHROW
+ {}
+
+ //!Destructor
+ ~private_adaptive_pool() BOOST_NOEXCEPT_OR_NOTHROW
+ {}
+
+ //!Returns the number of elements that could be allocated.
+ //!Never throws
+ size_type max_size() const BOOST_NOEXCEPT_OR_NOTHROW
+ { return size_type(-1)/(2u*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 > size_type(-1)/(2u*sizeof(T))))
+ boost::container::throw_bad_alloc();
+
+ if(Version == 1 && count == 1){
+ return pointer(static_cast<T*>(m_pool.allocate_node()));
+ }
+ else{
+ return static_cast<pointer>(dlmalloc_malloc(count*sizeof(T)));
+ }
+ }
+
+ //!Deallocate allocated memory.
+ //!Never throws
+ void deallocate(const pointer &ptr, size_type count) BOOST_NOEXCEPT_OR_NOTHROW
+ {
+ (void)count;
+ if(Version == 1 && count == 1){
+ m_pool.deallocate_node(ptr);
+ }
+ else{
+ dlmalloc_free(ptr);
+ }
+ }
+
+ pointer allocation_command(allocation_type command,
+ size_type limit_size,
+ size_type &prefer_in_recvd_out_size,
+ pointer &reuse)
+ {
+ 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
+ { return dlmalloc_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()
+ {
+ return (pointer)m_pool.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)
+ {
+ m_pool.allocate_nodes(num_elements, static_cast<typename pool_t::multiallocation_chain&>(chain));
+ }
+
+ //!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
+ {
+ m_pool.deallocate_node(p);
+ }
+
+ void deallocate_individual(multiallocation_chain &chain) BOOST_NOEXCEPT_OR_NOTHROW
+ {
+ m_pool.deallocate_nodes(chain);
+ }
+
+ //!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 ));
+ if(BOOST_UNLIKELY(!dlmalloc_multialloc_nodes
+ (n_elements, elem_size*sizeof(T), BOOST_CONTAINER_DL_MULTIALLOC_DEFAULT_CONTIGUOUS, reinterpret_cast<dlmalloc_memchain *>(&chain)))){
+ boost::container::throw_bad_alloc();
+ }
+ }
+
+ //!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 ));
+ if(BOOST_UNLIKELY(!dlmalloc_multialloc_arrays
+ (n_elements, elem_sizes, sizeof(T), BOOST_CONTAINER_DL_MULTIALLOC_DEFAULT_CONTIGUOUS, reinterpret_cast<dlmalloc_memchain *>(&chain)))){
+ boost::container::throw_bad_alloc();
+ }
+ }
+
+ void deallocate_many(multiallocation_chain &chain) BOOST_NOEXCEPT_OR_NOTHROW
+ {
+ dlmalloc_multidealloc(reinterpret_cast<dlmalloc_memchain *>(&chain));
+ }
+
+ //!Deallocates all free blocks of the pool
+ void deallocate_free_blocks() BOOST_NOEXCEPT_OR_NOTHROW
+ {
+ m_pool.deallocate_free_blocks();
+ }
+
+ //!Swaps allocators. Does not throw. If each allocator is placed in a
+ //!different memory segment, the result is undefined.
+ friend void swap(private_adaptive_pool &, private_adaptive_pool &) 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 private_adaptive_pool &, const private_adaptive_pool &) 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 private_adaptive_pool &, const private_adaptive_pool &) 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_ptr)
+ {
+ std::size_t const preferred_size = prefer_in_recvd_out_size;
+ dlmalloc_command_ret_t ret = {0 , 0};
+ if(BOOST_UNLIKELY(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_ptr;
+ ret = dlmalloc_allocation_command(command, sizeof(T), l_size, p_size, &r_size, reuse_ptr_void);
+ reuse_ptr = ret.second ? static_cast<T*>(reuse_ptr_void) : 0;
+ }
+ prefer_in_recvd_out_size = r_size/sizeof(T);
+ return (pointer)ret.first;
+ }
+};
+
} //namespace container {
} //namespace boost {
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