from::DLKR::DLAllocator Class Reference

Common ELDEN RING allocator interface. More...

#include <from_allocator.hpp>

Public Member Functions
virtual int	get_allocator_id ()=0
	Unique allocator id sometimes used for comparing allocators.
virtual int	_unk0x10 ()
	Unknown function which is defined in the interface, never overriden or used.
virtual int &	get_heap_flags (int &flags)=0
	Allocator and heap compatibility flags.
virtual size_t	get_heap_capacity ()=0
	The total capacity of the heap, in bytes.
virtual size_t	get_heap_size ()=0
	How many bytes out of the total capacity are allocated.
virtual size_t	get_heap_backing_capacity ()=0
	The remaining capacity of the backing heap.
virtual size_t	get_heap_allocation_count ()=0
	Total number of objects that have been allocated on the allocator's heap.
virtual size_t	msize (void *p)=0
	Check how big a given memory block is.
virtual void *	allocate (size_t cb)=0
	Allocate a block of at least this many bytes.
virtual void *	allocate_aligned (size_t cb, size_t alignment)=0
	Allocate a block of at least this many bytes with a given alignment.
virtual void *	reallocate (void *p, size_t cb)=0
	Reallocate a memory block with a new size.
virtual void *	reallocate_aligned (void *p, size_t cb, size_t alignment)=0
	Reallocate an aligned memory block with a new size.
virtual void	deallocate (void *p)=0
	Free previously allocated memory.
virtual void	_unk0x70 ()
	Unknown method, isn't supported by any class that implements DLKR::DLAllocator.
virtual void *	allocate2 (size_t cb)
	Allocate a block of at least this many bytes. Use the second allocator if it is bound, first if not.
virtual void *	allocate2_aligned (size_t cb, size_t alignment)
	Allocate a block of at least this many bytes with a given alignment. Use the second allocator if it is bound, first if not.
virtual void *	reallocate2 (void *p, size_t cb)
	Reallocate a memory block with a new size. Use the second allocator if it is bound, first if not.
virtual void *	reallocate2_aligned (void *p, size_t cb, size_t alignment)
	Reallocate an aligned memory block with a new size. Use the second allocator if it is bound, first if not.
virtual void	deallocate2 (void *p)
	Free previously allocated memory. Use the second allocator if it is bound, first if not.
virtual bool	_unk0xA0 ()
	Unknown method, seemingly unused.
virtual bool	check_owned (void *p)=0
	Does the pointed to memory block belong to this allocator?
virtual bool	_unk0xB0 (std::nullptr_t)
	Seemingly unused.
virtual void	lock ()=0
	Lock the allocator's mutex (if present and accessible).
virtual void	unlock ()=0
	Unlock the allocator's mutex (if present and accessible).
virtual void *	get_block (void *p)=0
	Get the memory block that this memory belongs to.

Detailed Description

Common ELDEN RING allocator interface.

DLKR::DLAllocator is the common allocator interface used by ER allocators, which are statically allocated in the binary and referenced by stateless proxy objects. from::allocator<T> provides a proxy object that fulfils Allocator completeness requirements and uses the DLKR::DLAllocator interface. Due to implementing _msize (actively used, see CS::CSGrassAllocator) the default allocator proxied by from::allocator cannot be based on std::allocator<T>.

May support two allocators at once (for container allocation).

Member Function Documentation

_unk0x10()

virtual int from::DLKR::DLAllocator::_unk0x10 ( )

inlinevirtual

Unknown function which is defined in the interface, never overriden or used.

Returns

int unknown

allocate()

virtual void * from::DLKR::DLAllocator::allocate ( size_t  cb )

pure virtual

Allocate a block of at least this many bytes.

Note

An alignment of at least 16 bytes is expected by ELDEN RING.

Parameters

cb	the number of bytes to allocate

Returns

void* pointer to the allocated memory

allocate2()

virtual void * from::DLKR::DLAllocator::allocate2 ( size_t  cb )

inlinevirtual

Allocate a block of at least this many bytes. Use the second allocator if it is bound, first if not.

Note

An alignment of at least 16 bytes is expected by ELDEN RING.

Parameters

cb	the number of bytes to allocate

Returns

void* pointer to the allocated memory

allocate2_aligned()

virtual void * from::DLKR::DLAllocator::allocate2_aligned ( size_t  cb, size_t  alignment  )

inlinevirtual

Allocate a block of at least this many bytes with a given alignment. Use the second allocator if it is bound, first if not.

Note

An alignment of at least 16 bytes is expected by ELDEN RING.

Parameters

cb	the number of bytes to allocate
alignment	the alignment of the allocated memory

Returns

void* pointer to the allocated memory

allocate_aligned()

virtual void * from::DLKR::DLAllocator::allocate_aligned ( size_t  cb, size_t  alignment  )

pure virtual

Allocate a block of at least this many bytes with a given alignment.

Note

An alignment of at least 16 bytes is expected by ELDEN RING.

Parameters

cb	the number of bytes to allocate
alignment	the alignment of the allocated memory

Returns

void* pointer to the allocated memory

deallocate()

virtual void from::DLKR::DLAllocator::deallocate ( void *  p )

pure virtual

Free previously allocated memory.

Parameters

p	pointer to a block of previously allocated memory

deallocate2()

virtual void from::DLKR::DLAllocator::deallocate2 ( void *  p )

inlinevirtual

Free previously allocated memory. Use the second allocator if it is bound, first if not.

Parameters

p	pointer to a block of previously allocated memory.

get_allocator_id()

virtual int from::DLKR::DLAllocator::get_allocator_id ( )

pure virtual

Unique allocator id sometimes used for comparing allocators.

Returns

int allocator identifier

get_block()

virtual void * from::DLKR::DLAllocator::get_block ( void *  p )

pure virtual

Get the memory block that this memory belongs to.

Warning

May panic if this memory isn't owned by this allocator.

Parameters

p	pointer to the memory block

Returns

void* pointer to the memory block base

get_heap_allocation_count()

virtual size_t from::DLKR::DLAllocator::get_heap_allocation_count ( )

pure virtual

Total number of objects that have been allocated on the allocator's heap.

Returns

size_t allocated object count

get_heap_backing_capacity()

virtual size_t from::DLKR::DLAllocator::get_heap_backing_capacity ( )

pure virtual

The remaining capacity of the backing heap.

Returns

size_t backing heap capacity

get_heap_capacity()

virtual size_t from::DLKR::DLAllocator::get_heap_capacity ( )

pure virtual

The total capacity of the heap, in bytes.

Returns

size_t heap capacity

get_heap_flags()

virtual int & from::DLKR::DLAllocator::get_heap_flags ( int &  flags )

pure virtual

Allocator and heap compatibility flags.

0x20 indicates thread safety (most commonly checked).

Returns

int& flags

get_heap_size()

virtual size_t from::DLKR::DLAllocator::get_heap_size ( )

pure virtual

How many bytes out of the total capacity are allocated.

Returns

size_t heap size

msize()

virtual size_t from::DLKR::DLAllocator::msize ( void *  p )

pure virtual

Check how big a given memory block is.

Parameters

p	pointer to the memory block to check

Returns

size_t size of the memory block

reallocate()

virtual void * from::DLKR::DLAllocator::reallocate ( void *  p, size_t  cb  )

pure virtual

Reallocate a memory block with a new size.

Note

Only valid for trivial types.

An alignment of at least 16 bytes is expected by ELDEN RING.

Parameters

p	pointer to a block of previously allocated memory
cb	the number of bytes to allocate

Returns

void* pointer to the allocated memory

reallocate2()

virtual void * from::DLKR::DLAllocator::reallocate2 ( void *  p, size_t  cb  )

inlinevirtual

Reallocate a memory block with a new size. Use the second allocator if it is bound, first if not.

Note

Only valid for trivial types.

An alignment of at least 16 bytes is expected by ELDEN RING.

Parameters

p	pointer to a block of previously allocated memory
cb	the number of bytes to allocate

Returns

void* pointer to the allocated memory

reallocate2_aligned()

virtual void * from::DLKR::DLAllocator::reallocate2_aligned ( void *  p, size_t  cb, size_t  alignment  )

inlinevirtual

Reallocate an aligned memory block with a new size. Use the second allocator if it is bound, first if not.

Note

Only valid for trivial types.

An alignment of at least 16 bytes is expected by ELDEN RING.

Parameters

p	pointer to a block of previously allocated memory
cb	the number of bytes to allocate
alignment	the alignment of the allocated memory

Returns

void* pointer to the allocated memory

reallocate_aligned()

virtual void * from::DLKR::DLAllocator::reallocate_aligned ( void *  p, size_t  cb, size_t  alignment  )

pure virtual

Reallocate an aligned memory block with a new size.

Note

Only valid for trivial types.

An alignment of at least 16 bytes is expected by ELDEN RING.

Parameters

p	pointer to a block of previously allocated memory
cb	the number of bytes to allocate
alignment	the alignment of the allocated memory

Returns

void* pointer to the allocated memory

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

• include/memory/from_allocator.hpp