Struct UmaKeg 

pub struct UmaKeg {
    vm: &'static Vm,
    size: NonZero<usize>,
    rsize: usize,
    pgoff: usize,
    ppera: usize,
    ipers: usize,
    alloc: fn(&'static Vm, Alloc) -> (*mut u8, SlabFlags),
    init: Option<fn()>,
    max_pages: usize,
    recurse: AtomicU32,
    flags: UmaFlags,
    state: Mutex<KegState>,
}

Implementation of uma_keg structure.

Fields

vm: &'static Vm

size: NonZero<usize>

rsize: usize

pgoff: usize

ppera: usize

ipers: usize

alloc: fn(&'static Vm, Alloc) -> (*mut u8, SlabFlags)

init: Option<fn()>

max_pages: usize

recurse: AtomicU32

flags: UmaFlags

state: Mutex<KegState>

Implementations

impl UmaKeg

pub(super) fn new( vm: &'static Vm, size: NonZero<usize>, align: usize, init: Option<fn()>, flags: UmaFlags, ) -> Arc<Self>

align is the actual alignment minus one, which mean if you want each item to be 8 bytes alignment this value will be 7.

See keg_ctor on the Orbis for a reference.

Reference offsets

Version	Offset
PS4 11.00	0x13CF40

pub fn size(&self) -> NonZero<usize>

pub fn allocated_size(&self) -> usize

pub fn item_per_slab(&self) -> usize

pub fn recurse(&self) -> u32

pub fn flags(&self) -> UmaFlags

pub(super) fn state(&self) -> &Mutex<KegState>

fn page_alloc(_: &'static Vm, _: Alloc) -> (*mut u8, SlabFlags)

See page_alloc on the Orbis for a reference.

Reference offsets

Version	Offset
PS4 11.00	0x1402F0

pub unsafe fn fetch_slab( self: &Arc<Self>, flags: Alloc, ) -> Option<Pin<Strong<Slab>>>

Unlike Orbis, our slab contains a strong reference to its keg. That mean you don’t need to keep the keg alive manually.

See keg_fetch_slab on the Orbis for a reference.

Reference offsets

Version	Offset
PS4 11.00	0x141E20

fn alloc_slab( self: &Arc<Self>, state: &mut KegState, flags: Alloc, ) -> Option<Pin<Strong<Slab>>>

See keg_alloc_slab on the Orbis for a reference.

Reference offsets

Version	Offset
PS4 11.00	0x13FBA0