Struct ThreadCount 

pub struct ThreadCount(/* private fields */);

A non-zero thread count

Ensures thread pools always have at least 1 thread. Special handling: passing 0 to new() returns the number of CPU cores.

Implementations

impl ThreadCount

pub const DEFAULT: Self

Default thread count (single-threaded)

pub const fn new(value: usize) -> Option<Self>

Create a new ThreadCount

• If value is 0, returns the number of CPU cores
• Otherwise returns the specified value
• Always returns Some (never None)

pub fn from_value(value: usize) -> Option<Self>

Create a new ThreadCount from a value

• If value is 0, returns the number of CPU cores
• Otherwise returns the specified value
• Always returns Some (never None)

pub const fn get(&self) -> usize

Get the inner value

Trait Implementations

impl Clone for ThreadCount

fn clone(&self) -> ThreadCount

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ThreadCount

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

Formats the value using the given formatter.

impl Default for ThreadCount

fn default() -> Self

Default to single-threaded (1 thread)

impl<'de> Deserialize<'de> for ThreadCount

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ThreadCount

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

Formats the value using the given formatter.

impl From<ThreadCount> for usize

fn from(val: ThreadCount) -> Self

Converts to this type from the input type.

impl FromStr for ThreadCount

type Err = ParseIntError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for ThreadCount

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ThreadCount

fn eq(&self, other: &ThreadCount) -> 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 Serialize for ThreadCount

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ThreadCount

impl Eq for ThreadCount

impl StructuralPartialEq for ThreadCount