open3d::ml::impl::MemoryAllocation Class Reference

A class for managing memory segments within a memory allocation. More...

#include <MemoryAllocation.h>

Public Member Functions
	MemoryAllocation (void *ptr, size_t size, size_t alignment=1)
template<class T >
std::pair< T *, size_t >	Alloc (size_t size)
std::pair< void *, size_t >	Alloc (size_t size)
std::pair< void *, size_t >	AllocLargestSegment ()
	Returns the largest free segment. More...
template<class T >
void	Free (const std::pair< T *, size_t > &segment)
	Frees a previously returned segment. More...
void	Free (const std::pair< void *, size_t > &segment)
	Frees a previously returned segment. More...
size_t	MaxUsed () const
	Returns the peak memory usage in bytes. More...
size_t	Alignment () const
	Returns the alignment in bytes. More...
const std::vector< std::pair< void *, size_t > > &	FreeSegments () const
	Returns the list of free segments. More...
void	PrintFreeSegments () const
	Prints all free segments. Meant for debugging. More...

Static Public Member Functions
template<class T >
static void	PrintSegment (const std::pair< T *, size_t > &s)
	Prints the segment. Meant for debugging. More...

Detailed Description

A class for managing memory segments within a memory allocation.

Constructor & Destructor Documentation

MemoryAllocation()

open3d::ml::impl::MemoryAllocation::MemoryAllocation ( void *  ptr, size_t  size, size_t  alignment = 1  )

inline

Creates a MemoryAllocation object that manages memory segments within a memory allocation.

Parameters

ptr	Pointer to the beginning of the memory. size Size of the memory.
alignment	The alignment for returned segments.

Member Function Documentation

Alignment()

size_t open3d::ml::impl::MemoryAllocation::Alignment ( ) const

inline

Returns the alignment in bytes.

Alloc() [1/2]

template<class T >

std::pair<T*, size_t> open3d::ml::impl::MemoryAllocation::Alloc ( size_t  size )

inline

Returns a memory segment with size for type T. Returns the pointer and the size in number of elements T. May return the pair (nullptr,0) if the allocation is not possible.

Alloc() [2/2]

std::pair<void*, size_t> open3d::ml::impl::MemoryAllocation::Alloc ( size_t  size )

inline

Returns a memory segment with size in bytes. May return the pair (nullptr,0) if the allocation is not possible.

AllocLargestSegment()

std::pair<void*, size_t> open3d::ml::impl::MemoryAllocation::AllocLargestSegment ( )

inline

Returns the largest free segment.

Free() [1/2]

template<class T >

void open3d::ml::impl::MemoryAllocation::Free ( const std::pair< T *, size_t > &  segment )

inline

Frees a previously returned segment.

Free() [2/2]

void open3d::ml::impl::MemoryAllocation::Free ( const std::pair< void *, size_t > &  segment )

inline

Frees a previously returned segment.

FreeSegments()

const std::vector<std::pair<void*, size_t> >& open3d::ml::impl::MemoryAllocation::FreeSegments ( ) const

inline

Returns the list of free segments.

MaxUsed()

size_t open3d::ml::impl::MemoryAllocation::MaxUsed ( ) const

inline

Returns the peak memory usage in bytes.

PrintFreeSegments()

void open3d::ml::impl::MemoryAllocation::PrintFreeSegments ( ) const

inline

Prints all free segments. Meant for debugging.

PrintSegment()

template<class T >

static void open3d::ml::impl::MemoryAllocation::PrintSegment ( const std::pair< T *, size_t > &  s )

inlinestatic

Prints the segment. Meant for debugging.

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

• /home/runner/work/Open3D/Open3D/cpp/open3d/ml/impl/misc/MemoryAllocation.h (313315d (Wed Dec 23 23:39:47 2020 -0800))