DefaultAllocator Class Reference

Default Memory Allocator class returned from IBackendInternal::GetDefaultAllocator(MemorySource) More...

#include <DefaultAllocator.hpp>

Inheritance diagram for DefaultAllocator:

Collaboration diagram for DefaultAllocator:

Public Member Functions
	DefaultAllocator ()=default
void *	allocate (size_t size, size_t alignment=0) override
	Interface to be implemented by the child class to allocate bytes.
void	free (void *ptr) override
	Interface to be implemented by the child class to free the allocated bytes.
armnn::MemorySource	GetMemorySourceType () override
	Used to specify what type of memory is being allocated by this allocator.
void *	GetMemoryRegionAtOffset (void *buffer, size_t offset, size_t alignment=0) override
	Interface that may be implemented to allow retrieval of Memory Region from allocated buffer at a certain offset.
Public Member Functions inherited from ICustomAllocator
virtual	~ICustomAllocator ()=default
	Default virtual destructor.

Detailed Description

Default Memory Allocator class returned from IBackendInternal::GetDefaultAllocator(MemorySource)

Definition at line 17 of file DefaultAllocator.hpp.

Constructor & Destructor Documentation

DefaultAllocator()

DefaultAllocator ( )

default

Member Function Documentation

allocate()

void * allocate ( size_t size, size_t alignment = 0 )

inlineoverridevirtual

Interface to be implemented by the child class to allocate bytes.

Parameters

[in]	size	Size to allocate
[in]	alignment	Alignment that the returned pointer should comply with

Returns

A pointer to the allocated memory The returned pointer must be host write accessible

Implements ICustomAllocator.

Definition at line 22 of file DefaultAllocator.hpp.

    {
        IgnoreUnused(alignment);
        return ::operator new(size_t(size));
    }

References armnn::IgnoreUnused().

free()

void free ( void * ptr )

inlineoverridevirtual

Interface to be implemented by the child class to free the allocated bytes.

Implements ICustomAllocator.

Definition at line 28 of file DefaultAllocator.hpp.

    {
        ::operator delete(ptr);
    }

GetMemoryRegionAtOffset()

void * GetMemoryRegionAtOffset ( void * buffer, size_t offset, size_t alignment = 0 )

inlineoverridevirtual

Interface that may be implemented to allow retrieval of Memory Region from allocated buffer at a certain offset.

Reimplemented from ICustomAllocator.

Definition at line 38 of file DefaultAllocator.hpp.

    {
        IgnoreUnused(alignment);
        return static_cast<char*>(buffer) + offset;
    }

References armnn::IgnoreUnused().

GetMemorySourceType()

armnn::MemorySource GetMemorySourceType ( )

inlineoverridevirtual

Used to specify what type of memory is being allocated by this allocator.

Supported types are: MemorySource::Malloc MemorySource::DmaBuf MemorySource::DmaBufProtected

Implements ICustomAllocator.

Definition at line 33 of file DefaultAllocator.hpp.

    {
        return armnn::MemorySource::Malloc;
    }

References armnn::Malloc.

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

• src/backends/backendsCommon/DefaultAllocator.hpp