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ThreadBuilder

Struct ThreadBuilder 

pub struct ThreadBuilder { /* private fields */ }
Expand description

A copy of the std::thread::Builder builder allowing to set priority settings.

use thread_priority::*;

let thread = ThreadBuilder::default()
    .name("MyThread")
    .priority(ThreadPriority::Max)
    .spawn(|result| {
        // This is printed out from within the spawned thread.
        println!("Set priority result: {:?}", result);
        assert!(result.is_ok());
}).unwrap();
thread.join();

// Another example where we don't care about the priority having been set.
let thread = ThreadBuilder::default()
    .name("MyThread")
    .priority(ThreadPriority::Max)
    .spawn_careless(|| {
        // This is printed out from within the spawned thread.
        println!("We don't care about the priority result.");
}).unwrap();
thread.join();

If the compiler version is at least 1.63, the scoped thread support is also enabled.

use thread_priority::*;

// Scoped thread is also supported if the compiler version is at least 1.63.
let mut x = 0;
std::thread::scope(|s|{
    let thread = ThreadBuilder::default()
        .name("MyThread")
        .priority(ThreadPriority::Max)
        .spawn_scoped(s, |result| {
            // This is printed out from within the spawned thread.
            println!("Set priority result: {:?}", result);
            assert!(result.is_ok());
            x += 1;
    }).unwrap();
    thread.join();
});
assert_eq!(x, 1);

// Scoped thread also has a "careless" mode.
std::thread::scope(|s|{
    let thread = ThreadBuilder::default()
        .name("MyThread")
        .priority(ThreadPriority::Max)
        .spawn_scoped_careless(s, || {
            // This is printed out from within the spawned thread.
            println!("We don't care about the priority result.");
            x += 1;
    }).unwrap();
    thread.join();
});
assert_eq!(x, 2);

Implementations§

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impl ThreadBuilder

pub fn name<VALUE>(self, value: VALUE) -> ThreadBuilder
where VALUE: Into<String>,

Names the thread-to-be. Currently the name is used for identification only in panic messages.

The name must not contain null bytes (\0).

For more information about named threads, see std::thread::Builder::name().

pub fn stack_size<VALUE>(self, value: VALUE) -> ThreadBuilder
where VALUE: Into<usize>,

Sets the size of the stack (in bytes) for the new thread.

The actual stack size may be greater than this value if the platform specifies a minimal stack size.

For more information about the stack size for threads, see std::thread::Builder::stack_size().

pub fn priority<VALUE>(self, value: VALUE) -> ThreadBuilder
where VALUE: Into<ThreadPriority>,

The thread’s custom priority.

For more information about the stack size for threads, see ThreadPriority.

pub fn policy<VALUE>(self, value: VALUE) -> ThreadBuilder
where VALUE: Into<ThreadSchedulePolicy>,

Available on Unix only.

The thread’s unix scheduling policy.

For more information, see crate::unix::ThreadSchedulePolicy and crate::unix::set_thread_priority_and_policy.

pub fn spawn<F, T>(self, f: F) -> Result<JoinHandle<T>, Error>
where F: FnOnce(Result<(), Error>) -> T + Send + 'static, T: Send + 'static,

Spawns a new thread by taking ownership of the Builder, and returns an std::io::Result to its std::thread::JoinHandle.

See std::thread::Builder::spawn

pub fn spawn_scoped<'scope, 'env, F, T>( self, scope: &'scope Scope<'scope, 'env>, f: F, ) -> Result<ScopedJoinHandle<'scope, T>, Error>
where F: FnOnce(Result<(), Error>) -> T + Send + 'scope, T: Send + 'scope,

Spawns a new scoped thread by taking ownership of the Builder, and returns an std::io::Result to its std::thread::ScopedJoinHandle.

See std::thread::Builder::spawn_scoped

pub fn spawn_careless<F, T>(self, f: F) -> Result<JoinHandle<T>, Error>
where F: FnOnce() -> T + Send + 'static, T: Send + 'static,

Spawns a new thread by taking ownership of the Builder, and returns an std::io::Result to its std::thread::JoinHandle.

See std::thread::Builder::spawn

pub fn spawn_scoped_careless<'scope, 'env, F, T>( self, scope: &'scope Scope<'scope, 'env>, f: F, ) -> Result<ScopedJoinHandle<'scope, T>, Error>
where F: FnOnce() -> T + Send + 'scope, T: Send + 'scope,

Spawns a new scoped thread by taking ownership of the Builder, and returns an std::io::Result to its std::thread::ScopedJoinHandle.

See std::thread::Builder::spawn_scoped

Trait Implementations§

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impl Clone for ThreadBuilder

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fn clone(&self) -> ThreadBuilder

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for ThreadBuilder

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

Formats the value using the given formatter. Read more
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impl Default for ThreadBuilder

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fn default() -> ThreadBuilder

Returns the “default value” for a type. Read more
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impl Hash for ThreadBuilder

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

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

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

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for ThreadBuilder

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fn cmp(&self, other: &ThreadBuilder) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · Source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · Source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · Source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for ThreadBuilder

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

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

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

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fn partial_cmp(&self, other: &ThreadBuilder) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · Source§

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

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · Source§

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

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · Source§

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

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · Source§

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

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Eq for ThreadBuilder

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impl StructuralPartialEq for ThreadBuilder

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where T: 'static + ?Sized,

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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit #126799)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

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fn instrument(self, span: Span) -> Instrumented<Self>

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const ALIGN: usize

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 104 bytes