jau::callocator_sec< T, > Struct Template Reference

A simple secure allocator for integral types using POSIX C functions: ::malloc() and ::free(). More...

#include <callocator_sec.hpp>

Inheritance diagram for jau::callocator_sec< T, >:

Collaboration diagram for jau::callocator_sec< T, >:

Classes
struct	rebind

Public Types
typedef const T *	const_pointer
typedef const T &	const_reference
typedef std::ptrdiff_t	difference_type
typedef std::true_type	is_always_equal
typedef T *	pointer
typedef std::true_type	propagate_on_container_move_assignment
typedef T &	reference
typedef std::size_t	size_type
typedef T	value_type

Public Member Functions
	callocator_sec () noexcept=default
	callocator_sec (const callocator_sec &) noexcept
template<typename U>
	callocator_sec (const callocator_sec< U > &) noexcept
	~callocator_sec ()=default
value_type *	allocate (std::size_t n)
value_type *	allocate (std::size_t n, const void *)
void	deallocate (value_type *p, std::size_t n) noexcept

Detailed Description

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>
struct jau::callocator_sec< T, >

A simple secure allocator for integral types using POSIX C functions: ::malloc() and ::free().

callocator_sec is similar to callocator, but

• only works for integral types
• deallocate explicitly zero_bytes_sec() the memory before free for secure scrubbing.
• dropped realloc() for security reasons, since realloc() could free old memory block w/o scrubbing.

This class shall be compliant with C++ named requirements for Allocator.

Not implementing deprecated (C++17) and removed (C++20) methods: address(), max_size(), construct() and destroy().

Definition at line 52 of file callocator_sec.hpp.

Member Typedef Documentation

value_type

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef T jau::callocator_sec< T, >::value_type

Definition at line 56 of file callocator_sec.hpp.

size_type

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef std::size_t jau::callocator_sec< T, >::size_type

Definition at line 57 of file callocator_sec.hpp.

difference_type

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef std::ptrdiff_t jau::callocator_sec< T, >::difference_type

Definition at line 58 of file callocator_sec.hpp.

propagate_on_container_move_assignment

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef std::true_type jau::callocator_sec< T, >::propagate_on_container_move_assignment

Definition at line 59 of file callocator_sec.hpp.

is_always_equal

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef std::true_type jau::callocator_sec< T, >::is_always_equal

Definition at line 62 of file callocator_sec.hpp.

pointer

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef T* jau::callocator_sec< T, >::pointer

Definition at line 65 of file callocator_sec.hpp.

const_pointer

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef const T* jau::callocator_sec< T, >::const_pointer

Definition at line 66 of file callocator_sec.hpp.

reference

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef T& jau::callocator_sec< T, >::reference

Definition at line 67 of file callocator_sec.hpp.

const_reference

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

typedef const T& jau::callocator_sec< T, >::const_reference

Definition at line 68 of file callocator_sec.hpp.

Constructor & Destructor Documentation

callocator_sec() [1/3]

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

jau::callocator_sec< T, >::callocator_sec ( )

defaultnoexcept

callocator_sec() [2/3]

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

jau::callocator_sec< T, >::callocator_sec ( const callocator_sec< T, > & )

inlinenoexcept

Definition at line 83 of file callocator_sec.hpp.

callocator_sec() [3/3]

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

template<typename U>

jau::callocator_sec< T, >::callocator_sec ( const callocator_sec< U > & )

inlinenoexcept

Definition at line 93 of file callocator_sec.hpp.

~callocator_sec()

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

jau::callocator_sec< T, >::~callocator_sec ( )

default

Member Function Documentation

allocate() [1/2]

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

value_type * jau::callocator_sec< T, >::allocate ( std::size_t n, const void *  )

inline

Definition at line 104 of file callocator_sec.hpp.

allocate() [2/2]

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

value_type * jau::callocator_sec< T, >::allocate ( std::size_t n )

inline

Definition at line 114 of file callocator_sec.hpp.

deallocate()

template<typename T, std::enable_if_t< std::is_integral_v< T >, bool > = true>

void jau::callocator_sec< T, >::deallocate ( value_type * p, std::size_t n )

inlinenoexcept

Definition at line 125 of file callocator_sec.hpp.

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The documentation for this struct was generated from the following file:

• include/jau/callocator_sec.hpp