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. ThreadId
s are guaranteed not to
be reused, even when a thread terminates. ThreadId
s 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);
RunImplementations
sourceimpl ThreadId
impl ThreadId
sourcepub fn as_u64(&self) -> NonZeroU64
pub fn as_u64(&self) -> NonZeroU64
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
impl Copy for ThreadId
impl Eq for ThreadId
impl StructuralEq for ThreadId
impl StructuralPartialEq for ThreadId
Auto Trait Implementations
impl RefUnwindSafe for ThreadId
impl Send for ThreadId
impl Sync for ThreadId
impl Unpin for ThreadId
impl UnwindSafe for ThreadId
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
Uses borrowed data to replace owned data, usually by cloning. Read more