Memory allocator via malloc/realloc/free with listing output. More...

#include <arccore/common/DefaultMemoryAllocator.h>

Public Member Functions
AllocatedMemoryInfo	allocate (MemoryAllocationArgs args, Int64 new_size) override
	Allocates memory for new_size bytes and returns the pointer.
AllocatedMemoryInfo	reallocate (MemoryAllocationArgs args, AllocatedMemoryInfo current_ptr, Int64 new_size) override
	Reallocates memory for new_size bytes and returns the pointer.
void	deallocate (MemoryAllocationArgs args, AllocatedMemoryInfo ptr) override
	Frees the memory whose base address is ptr.
Public Member Functions inherited from Arcane::DefaultMemoryAllocator
bool	hasRealloc (MemoryAllocationArgs) const override
	Indicates whether the allocator supports realloc semantics.
Int64	adjustedCapacity (MemoryAllocationArgs, Int64 wanted_capacity, Int64 element_size) const override
	Adjusts the capacity based on the element size.
size_t	guaranteedAlignment (MemoryAllocationArgs) const override
	Value of the alignment guaranteed by the allocator.
eMemoryResource	memoryResource () const override
	Memory resource provided by the allocator.
Public Member Functions inherited from Arcane::IMemoryAllocator
virtual	~IMemoryAllocator ()=default
	Destroys the allocator.
virtual size_t	guarantedAlignment (MemoryAllocationArgs args) const
	Value of the alignment guaranteed by the allocator.
virtual void	notifyMemoryArgsChanged (MemoryAllocationArgs old_args, MemoryAllocationArgs new_args, AllocatedMemoryInfo ptr)
	Notifies of a change in instance-specific arguments.
virtual void	copyMemory (MemoryAllocationArgs args, AllocatedMemoryInfo destination, AllocatedMemoryInfo source)
	Copies memory between two regions.
virtual bool	isCollective () const
	Indicates whether calls to the allocator must be performed collectively.

Detailed Description

Memory allocator via malloc/realloc/free with listing output.

This allocator is primarily used for debugging purposes. Information output is done via std::cout.

Definition at line 62 of file DefaultMemoryAllocator.h.

Member Function Documentation

◆ allocate()

AllocatedMemoryInfo Arcane::PrintableMemoryAllocator::allocate	(	MemoryAllocationArgs	args,
		Int64	new_size )

overridevirtual

Allocates memory for new_size bytes and returns the pointer.

The semantics are equivalent to malloc():

new_size can be zero, in which case the returned pointer is either null or a specific value
the returned pointer may be null if the memory could not be allocated.

Reimplemented from Arcane::DefaultMemoryAllocator.

Definition at line 256 of file MemoryAllocator.cc.

References Arcane::DefaultMemoryAllocator::allocate(), and Arcane::AllocatedMemoryInfo::baseAddress().

◆ deallocate()

void Arcane::PrintableMemoryAllocator::deallocate	(	MemoryAllocationArgs	args,
		AllocatedMemoryInfo	ptr )

overridevirtual

Frees the memory whose base address is ptr.

The pointer ptr must have been allocated via a call to allocate() or reallocate() on this instance.

The semantics of this method are equivalent to free(), and thus ptr may be null, in which case no operation is performed.

Reimplemented from Arcane::DefaultMemoryAllocator.

Definition at line 280 of file MemoryAllocator.cc.

References Arcane::AllocatedMemoryInfo::baseAddress(), and Arcane::DefaultMemoryAllocator::deallocate().

◆ reallocate()

AllocatedMemoryInfo Arcane::PrintableMemoryAllocator::reallocate	(	MemoryAllocationArgs	args,
		AllocatedMemoryInfo	current_ptr,
		Int64	new_size )

overridevirtual

Reallocates memory for new_size bytes and returns the pointer.

The pointer current_ptr must have been allocated via a call to allocate() or reallocate() on this instance.

The semantics of this method are equivalent to realloc():

current_ptr may be null, in which case this call is equivalent to allocate().
the returned pointer may be null if the memory could not be allocated.

Reimplemented from Arcane::DefaultMemoryAllocator.

Definition at line 267 of file MemoryAllocator.cc.

References Arcane::AllocatedMemoryInfo::baseAddress(), and Arcane::DefaultMemoryAllocator::reallocate().

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

Public Member Functions

Detailed Description

Member Function Documentation

◆ allocate()

◆ deallocate()

◆ reallocate()