Enum Jobs 

pub enum Jobs {
    Serial,
    Threads(NonZeroUsize),
}

How many jobs to run at once.

Variants

Serial

One job at a time, in order. What -j1 asks for, and what the determinism check in CI compares against.

Threads(NonZeroUsize)

At most this many at once.

Implementations

impl Jobs

pub fn available() -> Jobs

What the machine can do, or serial when it will not say.

pub fn count(self) -> usize

The number of workers this asks for.

pub fn parse(arg: &str) -> Result<Jobs, String>

Parses the argument of -j.

A bare -j with no number means “as many as the machine has”, which is what make does and therefore what people expect.

Errors

Returns the offending text when it is not a positive number.

Trait Implementations

impl Clone for Jobs

fn clone(&self) -> Jobs

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Jobs

impl Debug for Jobs

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

Formats the value using the given formatter.

impl Default for Jobs

fn default() -> Jobs

Returns the “default value” for a type.

impl Eq for Jobs

impl PartialEq for Jobs

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Jobs