Struct std::thread::ThreadId

1.19.0 · source ·

pub struct ThreadId(_);

Expand description

A unique identifier for a running thread.

A ThreadId is an opaque object that uniquely identifies each thread created during the lifetime of a process. ThreadIds are guaranteed not to be reused, even when a thread terminates. ThreadIds are under the control of Rust’s standard library and there may not be any relationship between ThreadId and the underlying platform’s notion of a thread identifier – the two concepts cannot, therefore, be used interchangeably. A ThreadId can be retrieved from the id method on a Thread.

Examples

use std::thread;
let other_thread = thread::spawn(|| {
 thread::current().id()
});
let other_thread_id = other_thread.join().unwrap();
assert!(thread::current().id() != other_thread_id);

Run

Implementations

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impl ThreadId

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pub fn as_u64(&self) -> NonZeroU64

🔬 This is a nightly-only experimental API. (thread_id_value #67939)

This returns a numeric identifier for the thread identified by this ThreadId.

As noted in the documentation for the type itself, it is essentially an opaque ID, but is guaranteed to be unique for each thread. The returned value is entirely opaque – only equality testing is stable. Note that it is not guaranteed which values new threads will return, and this may change across Rust versions.

Trait Implementations

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impl Clone for ThreadId

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fn clone(&self) -> ThreadId

Returns a copy 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 ThreadId

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

Formats the value using the given formatter. Read more

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impl Hash for ThreadId

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

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,

Feeds a slice of this type into the given Hasher. Read more

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impl PartialEq<ThreadId> for ThreadId

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

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

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impl Copy for ThreadId

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impl Eq for ThreadId

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impl StructuralEq for ThreadId

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impl StructuralPartialEq for ThreadId