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private_node_allocator.hpp - Hosted on DriveHQ Cloud IT Platform
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Ruta de la carpeta: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\interprocess\allocators\private_node_allocator.hpp
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////////////////////////////////////////////////////////////////////////////// // // (C) Copyright Ion Gaztanaga 2005-2008. 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/interprocess for documentation. // ////////////////////////////////////////////////////////////////////////////// /* #ifndef BOOST_INTERPROCESS_PRIVATE_NODE_ALLOCATOR_HPP #define BOOST_INTERPROCESS_PRIVATE_NODE_ALLOCATOR_HPP #if (defined _MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif #include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
//!\file //!Describes private_node_allocator pooled shared memory STL compatible allocator namespace boost { namespace interprocess { //!An STL node allocator that uses a segment manager as memory //!source. The internal pointer type will of the same type (raw, smart) as //!"typename SegmentManager::void_pointer" type. This allows //!placing the allocator in shared memory, memory mapped-files, etc... //!This allocator has its own node pool. NodesPerChunk is the number of nodes allocated //!at once when the allocator needs runs out of nodes template
class private_node_allocator { /// @cond private: typedef typename SegmentManager::void_pointer void_pointer; typedef typename detail:: pointer_to_other
::type cvoid_pointer; typedef SegmentManager segment_manager; typedef typename detail::pointer_to_other
::type segment_mngr_ptr_t; typedef private_node_allocator
self_t; typedef detail::private_node_pool
priv_node_pool_t; /// @endcond public: //------- typedef typename detail:: pointer_to_other
::type pointer; typedef typename detail:: pointer_to_other
::type const_pointer; typedef T value_type; typedef typename detail::add_reference
::type reference; typedef typename detail::add_reference
::type const_reference; typedef std::size_t size_type; typedef std::ptrdiff_t difference_type; //!Obtains node_allocator from other node_allocator template
struct rebind { typedef private_node_allocator
other; }; /// @cond private: //!Not assignable from related private_node_allocator template
private_node_allocator& operator= (const private_node_allocator
&); //!Not assignable from other private_node_allocator private_node_allocator& operator=(const private_node_allocator&); /// @endcond public: //!Constructor from a segment manager private_node_allocator(segment_manager *segment_mngr) : m_node_pool(segment_mngr){} //!Copy constructor from other private_node_allocator. Never throws private_node_allocator(const private_node_allocator &other) : m_node_pool(other.get_segment_manager()){} //!Copy constructor from related private_node_allocator. Never throws. template
private_node_allocator (const private_node_allocator
&other) : m_node_pool(other.get_segment_manager()) {} //!Destructor, frees all used memory. Never throws ~private_node_allocator() {} //!Returns the segment manager. Never throws segment_manager* get_segment_manager()const { return m_node_pool.get_segment_manager(); } //!Returns the number of elements that could be allocated. Never throws size_type max_size() const { return this->get_segment_manager()->get_size()/sizeof(value_type); } //!Allocate memory for an array of count elements. //!Throws boost::interprocess::bad_alloc if there is no enough memory pointer allocate(size_type count, cvoid_pointer hint = 0) { (void)hint; if(count > this->max_size()) throw bad_alloc(); else if(count == 1) return pointer(static_cast
(m_node_pool.allocate_node())); else return pointer(static_cast
(m_node_pool.get_segment_manager()->allocate(sizeof(T)*count))); } //!Deallocate allocated memory. Never throws void deallocate(const pointer &ptr, size_type count) { if(count == 1) m_node_pool.deallocate_node(detail::get_pointer(ptr)); else m_node_pool.get_segment_manager()->deallocate(detail::get_pointer(ptr)); } //!Deallocates all free chunks of the pool void deallocate_free_chunks() { m_node_pool.deallocate_free_chunks(); } //!Swaps allocators. Does not throw. If each allocator is placed in a //!different shared memory segments, the result is undefined. friend void swap(self_t &alloc1,self_t &alloc2) { alloc1.m_node_pool.swap(alloc2.m_node_pool); } //These functions are obsolete. These are here to conserve //backwards compatibility with containers using them... //!Returns address of mutable object. //!Never throws pointer address(reference value) const { return pointer(boost::addressof(value)); } //!Returns address of non mutable object. //!Never throws const_pointer address(const_reference value) const { return const_pointer(boost::addressof(value)); } //!Default construct an object. //!Throws if T's default constructor throws void construct(const pointer &ptr) { new(detail::get_pointer(ptr)) value_type; } //!Destroys object. Throws if object's //!destructor throws void destroy(const pointer &ptr) { BOOST_ASSERT(ptr != 0); (*ptr).~value_type(); } /// @cond private: priv_node_pool_t m_node_pool; /// @endcond }; //!Equality test for same type of private_node_allocator template
inline bool operator==(const private_node_allocator
&alloc1, const private_node_allocator
&alloc2) { return &alloc1 == &alloc2; } //!Inequality test for same type of private_node_allocator template
inline bool operator!=(const private_node_allocator
&alloc1, const private_node_allocator
&alloc2) { return &alloc1 != &alloc2; } } //namespace interprocess { } //namespace boost { #include
#endif //#ifndef BOOST_INTERPROCESS_PRIVATE_NODE_ALLOCATOR_HPP */ ////////////////////////////////////////////////////////////////////////////// // // (C) Copyright Ion Gaztanaga 2005-2008. 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/interprocess for documentation. // ////////////////////////////////////////////////////////////////////////////// #ifndef BOOST_INTERPROCESS_PRIVATE_NODE_ALLOCATOR_HPP #define BOOST_INTERPROCESS_PRIVATE_NODE_ALLOCATOR_HPP #if (defined _MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif #include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
//!\file //!Describes private_node_allocator_base pooled shared memory STL compatible allocator namespace boost { namespace interprocess { /// @cond namespace detail { template < unsigned int Version , class T , class SegmentManager , std::size_t NodesPerChunk > class private_node_allocator_base : public node_pool_allocation_impl < private_node_allocator_base < Version, T, SegmentManager, NodesPerChunk> , Version , T , SegmentManager > { /// @cond private: typedef typename SegmentManager::void_pointer void_pointer; typedef SegmentManager segment_manager; typedef private_node_allocator_base < Version, T, SegmentManager, NodesPerChunk> self_t; typedef detail::private_node_pool
node_pool_t; BOOST_STATIC_ASSERT((Version <=2)); /// @endcond public: typedef typename detail:: pointer_to_other
::type pointer; typedef typename detail:: pointer_to_other
::type const_pointer; typedef T value_type; typedef typename detail::add_reference
::type reference; typedef typename detail::add_reference
::type const_reference; typedef std::size_t size_type; typedef std::ptrdiff_t difference_type; typedef detail::version_type
version; typedef transform_iterator < typename SegmentManager:: multiallocation_iterator , detail::cast_functor
> multiallocation_iterator; typedef typename SegmentManager:: multiallocation_chain multiallocation_chain; //!Obtains node_allocator from other node_allocator template
struct rebind { typedef private_node_allocator_base
other; }; /// @cond private: //!Not assignable from related private_node_allocator_base template
private_node_allocator_base& operator= (const private_node_allocator_base
&); //!Not assignable from other private_node_allocator_base private_node_allocator_base& operator=(const private_node_allocator_base&); /// @endcond public: //!Constructor from a segment manager private_node_allocator_base(segment_manager *segment_mngr) : m_node_pool(segment_mngr) {} //!Copy constructor from other private_node_allocator_base. Never throws private_node_allocator_base(const private_node_allocator_base &other) : m_node_pool(other.get_segment_manager()) {} //!Copy constructor from related private_node_allocator_base. Never throws. template
private_node_allocator_base (const private_node_allocator_base
&other) : m_node_pool(other.get_segment_manager()) {} //!Destructor, frees all used memory. Never throws ~private_node_allocator_base() {} //!Returns the segment manager. Never throws segment_manager* get_segment_manager()const { return m_node_pool.get_segment_manager(); } //!Returns the internal node pool. Never throws node_pool_t* get_node_pool() const { return const_cast
(&m_node_pool); } //!Swaps allocators. Does not throw. If each allocator is placed in a //!different shared memory segments, the result is undefined. friend void swap(self_t &alloc1,self_t &alloc2) { alloc1.m_node_pool.swap(alloc2.m_node_pool); } /// @cond private: node_pool_t m_node_pool; /// @endcond }; //!Equality test for same type of private_node_allocator_base template
inline bool operator==(const private_node_allocator_base
&alloc1, const private_node_allocator_base
&alloc2) { return &alloc1 == &alloc2; } //!Inequality test for same type of private_node_allocator_base template
inline bool operator!=(const private_node_allocator_base
&alloc1, const private_node_allocator_base
&alloc2) { return &alloc1 != &alloc2; } template < class T , class SegmentManager , std::size_t NodesPerChunk = 64 > class private_node_allocator_v1 : public private_node_allocator_base < 1 , T , SegmentManager , NodesPerChunk > { public: typedef detail::private_node_allocator_base < 1, T, SegmentManager, NodesPerChunk> base_t; template
struct rebind { typedef private_node_allocator_v1
other; }; private_node_allocator_v1(SegmentManager *segment_mngr) : base_t(segment_mngr) {} template
private_node_allocator_v1 (const private_node_allocator_v1
&other) : base_t(other) {} }; } //namespace detail { /// @endcond //!An STL node allocator that uses a segment manager as memory //!source. The internal pointer type will of the same type (raw, smart) as //!"typename SegmentManager::void_pointer" type. This allows //!placing the allocator in shared memory, memory mapped-files, etc... //!This allocator has its own node pool. NodesPerChunk is the number of nodes allocated //!at once when the allocator needs runs out of nodes template < class T , class SegmentManager , std::size_t NodesPerChunk > class private_node_allocator /// @cond : public detail::private_node_allocator_base < 2 , T , SegmentManager , NodesPerChunk > /// @endcond { #ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED typedef detail::private_node_allocator_base < 2, T, SegmentManager, NodesPerChunk> base_t; public: typedef detail::version_type
version; template
struct rebind { typedef private_node_allocator
other; }; private_node_allocator(SegmentManager *segment_mngr) : base_t(segment_mngr) {} template
private_node_allocator (const private_node_allocator
&other) : base_t(other) {} #else public: typedef implementation_defined::segment_manager segment_manager; typedef segment_manager::void_pointer void_pointer; typedef implementation_defined::pointer pointer; typedef implementation_defined::const_pointer const_pointer; typedef T value_type; typedef typename detail::add_reference
::type reference; typedef typename detail::add_reference
::type const_reference; typedef std::size_t size_type; typedef std::ptrdiff_t difference_type; //!Obtains private_node_allocator from //!private_node_allocator template
struct rebind { typedef private_node_allocator
other; }; private: //!Not assignable from //!related private_node_allocator template
private_node_allocator& operator= (const private_node_allocator
&); //!Not assignable from //!other private_node_allocator private_node_allocator& operator=(const private_node_allocator&); public: //!Constructor from a segment manager. If not present, constructs a node //!pool. Increments the reference count of the associated node pool. //!Can throw boost::interprocess::bad_alloc private_node_allocator(segment_manager *segment_mngr); //!Copy constructor from other private_node_allocator. Increments the reference //!count of the associated node pool. Never throws private_node_allocator(const private_node_allocator &other); //!Copy constructor from related private_node_allocator. If not present, constructs //!a node pool. Increments the reference count of the associated node pool. //!Can throw boost::interprocess::bad_alloc template
private_node_allocator (const private_node_allocator
&other); //!Destructor, removes node_pool_t from memory //!if its reference count reaches to zero. Never throws ~private_node_allocator(); //!Returns a pointer to the node pool. //!Never throws node_pool_t* get_node_pool() const; //!Returns the segment manager. //!Never throws segment_manager* get_segment_manager()const; //!Returns the number of elements that could be allocated. //!Never throws size_type max_size() const; //!Allocate memory for an array of count elements. //!Throws boost::interprocess::bad_alloc if there is no enough memory pointer allocate(size_type count, cvoid_pointer hint = 0); //!Deallocate allocated memory. //!Never throws void deallocate(const pointer &ptr, size_type count); //!Deallocates all free chunks //!of the pool void deallocate_free_chunks(); //!Swaps allocators. Does not throw. If each allocator is placed in a //!different memory segment, the result is undefined. friend void swap(self_t &alloc1, self_t &alloc2); //!Returns address of mutable object. //!Never throws pointer address(reference value) const; //!Returns address of non mutable object. //!Never throws const_pointer address(const_reference value) const; //!Default construct an object. //!Throws if T's default constructor throws void construct(const pointer &ptr); //!Destroys object. Throws if object's //!destructor throws void destroy(const pointer &ptr); //!Returns maximum the number of objects the previously allocated memory //!pointed by p can hold. This size only works for memory allocated with //!allocate, allocation_command and allocate_many. size_type size(const pointer &p) const; std::pair
allocation_command(allocation_type command, size_type limit_size, size_type preferred_size, size_type &received_size, const pointer &reuse = 0); //!Allocates many elements of size elem_size in a contiguous chunk //!of memory. The minimum number to be allocated is min_elements, //!the preferred and maximum number is //!preferred_elements. The number of actually allocated elements is //!will be assigned to received_size. The elements must be deallocated //!with deallocate(...) multiallocation_iterator allocate_many(size_type elem_size, std::size_t num_elements); //!Allocates n_elements elements, each one of size elem_sizes[i]in a //!contiguous chunk //!of memory. The elements must be deallocated multiallocation_iterator allocate_many(const size_type *elem_sizes, size_type n_elements); //!Allocates many elements of size elem_size in a contiguous chunk //!of memory. The minimum number to be allocated is min_elements, //!the preferred and maximum number is //!preferred_elements. The number of actually allocated elements is //!will be assigned to received_size. The elements must be deallocated //!with deallocate(...) void deallocate_many(multiallocation_iterator it); //!Allocates just one object. Memory allocated with this function //!must be deallocated only with deallocate_one(). //!Throws boost::interprocess::bad_alloc if there is no enough memory pointer allocate_one(); //!Allocates many elements of size == 1 in a contiguous chunk //!of memory. The minimum number to be allocated is min_elements, //!the preferred and maximum number is //!preferred_elements. The number of actually allocated elements is //!will be assigned to received_size. Memory allocated with this function //!must be deallocated only with deallocate_one(). multiallocation_iterator allocate_individual(std::size_t num_elements); //!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(const pointer &p); //!Allocates many elements of size == 1 in a contiguous chunk //!of memory. The minimum number to be allocated is min_elements, //!the preferred and maximum number is //!preferred_elements. The number of actually allocated elements is //!will be assigned to received_size. Memory allocated with this function //!must be deallocated only with deallocate_one(). void deallocate_individual(multiallocation_iterator it); #endif }; #ifdef BOOST_INTERPROCESS_DOXYGEN_INVOKED //!Equality test for same type //!of private_node_allocator template
inline bool operator==(const private_node_allocator
&alloc1, const private_node_allocator
&alloc2); //!Inequality test for same type //!of private_node_allocator template
inline bool operator!=(const private_node_allocator
&alloc1, const private_node_allocator
&alloc2); #endif } //namespace interprocess { } //namespace boost { #include
#endif //#ifndef BOOST_INTERPROCESS_PRIVATE_NODE_ALLOCATOR_HPP
private_node_allocator.hpp
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