Struct CpuSet 

pub struct CpuSet { /* private fields */ }

A set of CPU IDs.

CpuSet represents a collection of CPU cores, typically used for thread affinity. It supports up to 1024 CPUs, matching the Linux kernel limit.

Implementations

impl CpuSet

pub const MAX_CPUS: usize = 1024

Maximum number of CPUs supported.

pub const fn new() -> Self

Create an empty CPU set.

pub fn single(cpu: u32) -> Self

Create a CPU set containing a single CPU.

pub fn add(&mut self, cpu: u32)

Add a CPU to the set.

Panics

Panics if cpu >= MAX_CPUS.

pub fn remove(&mut self, cpu: u32)

Remove a CPU from the set.

pub fn contains(&self, cpu: u32) -> bool

Check if a CPU is in the set.

pub fn is_empty(&self) -> bool

Check if the set is empty.

pub fn count(&self) -> usize

Count the number of CPUs in the set.

pub fn iter(&self) -> impl Iterator<Item = u32> + '_

Iterate over the CPUs in the set.

pub fn first(&self) -> Option<u32>

Get the first CPU in the set, if any.

pub fn union(&self, other: &Self) -> Self

Create a union of two CPU sets.

pub fn intersection(&self, other: &Self) -> Self

Create an intersection of two CPU sets.

pub fn as_raw(&self) -> &[u64; 16]

Get the raw bitmap for FFI.

pub fn as_raw_mut(&mut self) -> &mut [u64; 16]

Get a mutable reference to the raw bitmap for FFI.

pub fn parse(s: &str) -> Result<Self, ParseCpuSetError>

Parse a CPU list string like “0-3,8-11” or “0,1,2,3”.

Trait Implementations

impl Clone for CpuSet

fn clone(&self) -> CpuSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CpuSet

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

Formats the value using the given formatter.

impl Default for CpuSet

fn default() -> Self

Returns the “default value” for a type.

impl Display for CpuSet

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

Formats the value using the given formatter.

impl FromIterator<u32> for CpuSet

fn from_iter<I: IntoIterator<Item = u32>>(iter: I) -> Self

Creates a value from an iterator.

impl PartialEq for CpuSet

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for CpuSet

impl StructuralPartialEq for CpuSet