Struct mmtk::policy::marksweepspace::malloc_ms::metadata::CHUNK_METADATA

pub fn get_local_specs(&self) -> &[SideMetadataSpec]

pub fn calculate_reserved_pages(&self, data_pages: usize) -> usize

Return the pages reserved for side metadata based on the data pages we used.

pub fn try_map_metadata_space( &self, start: Address, size: usize, space_name: &str ) -> Result<()>

Tries to map the required metadata space and returns true is successful. This can be called at page granularity.

pub fn try_map_metadata_address_range( &self, start: Address, size: usize, name: &str ) -> Result<()>

Tries to map the required metadata address range, without reserving swap-space/physical memory for it. This will make sure the address range is exclusive to the caller. This should be called at chunk granularity.

NOTE: Accessing addresses in this range will produce a segmentation fault if swap-space is not mapped using the try_map_metadata_space function.

fn map_metadata_internal( &self, start: Address, size: usize, no_reserve: bool, space_name: &str ) -> Result<()>

The internal function to mmap metadata

§Arguments

start - The starting address of the source data.
size - The size of the source data (in bytes).
no_reserve - whether to invoke mmap with a noreserve flag (we use this flag to quarantine address range)
space_name: The name of the space, used for annotating the mmap.

Trait Implementations§

impl Deref for CHUNK_METADATA

type Target = SideMetadataContext

The resulting type after dereferencing.

fn deref(&self) -> &SideMetadataContext

Dereferences the value.

impl LazyStatic for CHUNK_METADATA

Auto Trait Implementations§

impl UnwindSafe for CHUNK_METADATA

Blanket Implementations§

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