Enum Residency 

pub enum Residency {
    Mapped,
    Prefaulted,
    Heap,
}

Where the arrays of an index opened with VGraph::open live.

Variants

Mapped

The file is mapped read-only. open reads the neighbour lists and id maps, which it checks; the codes are read on their first touch. Read pages count as file-backed resident memory, which the kernel may reclaim under pressure and read again.

Prefaulted

As Residency::Mapped, with every page touched before open returns, so no query pays a page fault.

Heap

The file is read into memory the index owns (anonymous memory).

Trait Implementations

impl Clone for Residency

fn clone(&self) -> Residency

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Residency

impl Debug for Residency

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Residency

fn default() -> Residency

Returns the “default value” for a type.

impl Eq for Residency

impl PartialEq for Residency

fn eq(&self, other: &Residency) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Residency