# Struct std::thread::ThreadId
1.19.0[−][src]

    pub struct ThreadId(_);

Expand description

A unique identifier for a running thread.

A `ThreadId` is an opaque object that has a unique value for each thread that creates one. `ThreadId`s are not guaranteed to correspond to a thread’s system-designated identifier. 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[src]

#### 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[src]

#### 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

## 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

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### impl<T> Any for T where
T: 'static + ?Sized,

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#### pub fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more

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### impl<T> Borrow<T> for T where
T: ?Sized,

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#### pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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### impl<T> BorrowMut<T> for T where
T: ?Sized,

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

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

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#### pub fn from(t: T) -> T

Performs the conversion.

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### impl<T, U> Into<U> for T where
U: From<T>,

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#### pub fn into(self) -> U

Performs the conversion.

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### impl<T> ToOwned for T where
T: Clone,

#### type Owned = T

The resulting type after obtaining ownership.

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#### pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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#### pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (`toowned_clone_into` #41263)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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### impl<T, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

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#### pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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### impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

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#### pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.