Struct mmtk::util::heap::pageresource::CommonPageResource

pub struct CommonPageResource {
    pub accounting: PageAccounting,
    pub contiguous: bool,
    pub growable: bool,
    pub vm_map: &'static dyn VMMap,
    head_discontiguous_region: Mutex<Address>,
}

Fields

accounting: PageAccounting

contiguous: bool

growable: bool

vm_map: &'static dyn VMMap

head_discontiguous_region: Mutex<Address>

Implementations

impl CommonPageResource

pub fn new( contiguous: bool, growable: bool, vm_map: &'static dyn VMMap ) -> CommonPageResource

pub fn grow_discontiguous_space( &self, space_descriptor: SpaceDescriptor, chunks: usize, freelist: Option<&mut dyn FreeList> ) -> Address

Extend the virtual memory associated with a particular discontiguous space. This simply involves requesting a suitable number of chunks from the pool of chunks available to discontiguous spaces.

If the concrete page resource is using a FreeList, it should pass it via freelist, or None if not using FreeList.

pub fn release_discontiguous_chunks(&self, chunk: Address)

Release one or more contiguous chunks associated with a discontiguous space.

pub fn release_all_chunks(&self)

pub fn get_head_discontiguous_region(&self) -> Address