Class ov::Allocator#

class Allocator#

Wraps allocator implementation to provide safe way to store allocater loaded from shared library And constructs default based on new delete c++ calls allocator if created without parameters Accepts any std::pmr::memory_resource like allocator.

Public Functions

~Allocator()#: Destructor preserves unloading order of implementation object and reference to library.

Allocator()#: Default constructor.

Allocator(const Allocator &other) = default#

Default copy constructor.

Parameters:: other – other Allocator object

Allocator &operator=(const Allocator &other) = default#

Default copy assignment operator.

Parameters:: other – other Allocator object
Returns:: reference to the current object

Allocator(Allocator &&other) = default#

Default move constructor.

Parameters:: other – other Allocator object

Allocator &operator=(Allocator &&other) = default#

Default move assignment operator.

Parameters:: other – other Allocator object
Returns:: reference to the current object

template<typename A, typename std::enable_if<!std::is_same<typename std::decay<A>::type, Allocator>::value && !std::is_abstract<typename std::decay<A>::type>::value && !std::is_convertible<typename std::decay<A>::type, std::shared_ptr<Base>>::value, bool>::type = true> inline Allocator(A &&a)#

Initialize allocator using any allocator like object.

Template Parameters:: A – Type of allocator
Parameters:: a – allocator object

void *allocate(const size_t bytes, const size_t alignment = alignof(max_align_t))#

Allocates memory.

Parameters:

bytes – The size in bytes at least to allocate
alignment – The alignment of storage

Throws:

Exception – if specified size and alignment is not supported

Returns:

Handle to the allocated resource

void deallocate(void *ptr, const size_t bytes = 0, const size_t alignment = alignof(max_align_t))#

Releases the handle and all associated memory resources which invalidates the handle.

Parameters:

ptr – The handle to free
bytes – The size in bytes that was passed into allocate() method
alignment – The alignment of storage that was passed into allocate() method

bool operator==(const Allocator &other) const#

Compares with other Allocator.

Parameters:: other – Other instance of allocator
Returns:: true if and only if memory allocated from one Allocator can be deallocated from the other and vice versa

bool operator!() const noexcept#

Checks if current Allocator object is not initialized.

Returns:: true if current Allocator object is not initialized, false - otherwise

explicit operator bool() const noexcept#

Checks if current Allocator object is initialized.

Returns:: true if current Allocator object is initialized, false - otherwise