rex::kernel::ISystemHeap Class Reference

#include <rex/kernel/heap.h>

Inheritance diagram for rex::kernel::ISystemHeap:

Public Member Functions
virtual u32	SystemHeapAlloc (u32 size, u32 alignment=0x20, u32 system_heap_flags=kSystemHeapDefault)=0
virtual void	SystemHeapFree (u32 address, u32 *out_region_size=nullptr)=0
virtual bool	IsAddressMapped (u32 address) const =0
virtual u32	AllocPhysical (u32 size, u32 page_size, u32 protect, u32 min_address, u32 max_address, u32 alignment)=0

Detailed Description

The system heap interface XAM allocates from.

Member Function Documentation

AllocPhysical()

virtual u32 rex::kernel::ISystemHeap::AllocPhysical ( u32 size, u32 page_size, u32 protect, u32 min_address, u32 max_address, u32 alignment )

pure virtual

Allocates contiguous physical memory for the title. SystemHeapFree releases it.

Parameters

size	The size in bytes, rounded up to the page size.
page_size	The page size in bytes: 4 KiB, 64 KiB or 16 MiB.
protect	MemoryProtectFlag bits.
min_address	The lowest acceptable physical address.
max_address	The highest acceptable physical address.
alignment	The alignment in bytes, rounded up to the page size.

Returns

The base address, or 0 when no memory is available.

Implemented in rex::kernel::GuestAddressSpace.

SystemHeapAlloc()

virtual u32 rex::kernel::ISystemHeap::SystemHeapAlloc ( u32 size, u32 alignment = 0x20, u32 system_heap_flags = kSystemHeapDefault )

pure virtual

Allocates memory for the system.

Parameters

system_heap_flags

SystemHeapFlag bits.

Implemented in rex::kernel::GuestAddressSpace.

SystemHeapFree()

virtual void rex::kernel::ISystemHeap::SystemHeapFree ( u32 address, u32 * out_region_size = nullptr )

pure virtual

Frees memory allocated with SystemHeapAlloc.

Parameters

out_region_size

Receives the size of the freed region.

Implemented in rex::kernel::GuestAddressSpace.

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

• rex/kernel/heap.h