Trait core::marker::Send

pub unsafe auto trait Send { }

可以跨线程边界传输的类型。

当编译器确定适当时，会自动实现此 trait。

非 Send 类型的一个例子是引用计数指针 rc::Rc。 如果两个线程试图克隆指向相同引用计数值的 Rc，它们可能会同时尝试更新引用计数，这是 未定义行为 因为 Rc 不使用原子操作。

它的表亲 sync::Arc 确实使用原子操作 (产生一些开销)，因此它是 Send。

有关详细信息，请参见 the Nomicon 和 Sync trait。

Implementors

impl Send for Waker

impl<Dyn: ?Sized> Send for DynMetadata<Dyn>

impl<T> Send for Cell<T>where T: Send + ?Sized,

impl<T> Send for RefCell<T>where T: Send + ?Sized,

impl<T> Send for ChunksExactMut<'_, T>where T: Send,

impl<T> Send for ChunksMut<'_, T>where T: Send,

impl<T> Send for RChunksExactMut<'_, T>where T: Send,

impl<T> Send for RChunksMut<'_, T>where T: Send,

impl<T> Send for AtomicPtr<T>

impl<T: Send> Send for core::slice::IterMut<'_, T>

impl<T: Sync + ?Sized> Send for &T

impl<T: Sync> Send for core::slice::Iter<'_, T>

impl<T: ?Sized> !Send for *const T

impl<T: ?Sized> !Send for *mut T

impl<T: ?Sized> !Send for NonNull<T>

NonNull 指针不是 Send，因为它们引用的数据可能是别名。

Auto implementors

impl !Send for RawWaker

impl Send for AsciiChar

impl Send for core::cmp::Ordering

impl Send for Infallible

impl Send for c_void

impl Send for core::fmt::Alignment

impl Send for IpAddr

impl Send for Ipv6MulticastScope

impl Send for SocketAddr

impl Send for FpCategory

impl Send for IntErrorKind

impl Send for Which

impl Send for SearchStep

impl Send for core::sync::atomic::Ordering

impl Send for bool

impl Send for char

impl Send for f32

impl Send for f64

impl Send for i8

impl Send for i16

impl Send for i32

impl Send for i64

impl Send for i128

impl Send for isize

impl Send for str

impl Send for u8

impl Send for u16

impl Send for u32

impl Send for u64

impl Send for u128

impl Send for ()

impl Send for usize

impl Send for AllocError

impl Send for Layout

impl Send for LayoutError

impl Send for TypeId

impl Send for float64x1_t

impl Send for float64x1x2_t

impl Send for float64x1x3_t

impl Send for float64x1x4_t

impl Send for float64x2_t

impl Send for float64x2x2_t

impl Send for float64x2x3_t

impl Send for float64x2x4_t

impl Send for int16x2_t

impl Send for uint16x2_t

impl Send for APSR

impl Send for SY

impl Send for float32x2_t

impl Send for float32x2x2_t

impl Send for float32x2x3_t

impl Send for float32x2x4_t

impl Send for float32x4_t

impl Send for float32x4x2_t

impl Send for float32x4x3_t

impl Send for float32x4x4_t

impl Send for int8x4_t

impl Send for int8x8_t

impl Send for int8x8x2_t

impl Send for int8x8x3_t

impl Send for int8x8x4_t

impl Send for int8x16_t

impl Send for int8x16x2_t

impl Send for int8x16x3_t

impl Send for int8x16x4_t

impl Send for int16x4_t

impl Send for int16x4x2_t

impl Send for int16x4x3_t

impl Send for int16x4x4_t

impl Send for int16x8_t

impl Send for int16x8x2_t

impl Send for int16x8x3_t

impl Send for int16x8x4_t

impl Send for int32x2_t

impl Send for int32x2x2_t

impl Send for int32x2x3_t

impl Send for int32x2x4_t

impl Send for int32x4_t

impl Send for int32x4x2_t

impl Send for int32x4x3_t

impl Send for int32x4x4_t

impl Send for int64x1_t

impl Send for int64x1x2_t

impl Send for int64x1x3_t

impl Send for int64x1x4_t

impl Send for int64x2_t

impl Send for int64x2x2_t

impl Send for int64x2x3_t

impl Send for int64x2x4_t

impl Send for poly8x8_t

impl Send for poly8x8x2_t

impl Send for poly8x8x3_t

impl Send for poly8x8x4_t

impl Send for poly8x16_t

impl Send for poly8x16x2_t

impl Send for poly8x16x3_t

impl Send for poly8x16x4_t

impl Send for poly16x4_t

impl Send for poly16x4x2_t

impl Send for poly16x4x3_t

impl Send for poly16x4x4_t

impl Send for poly16x8_t

impl Send for poly16x8x2_t

impl Send for poly16x8x3_t

impl Send for poly16x8x4_t

impl Send for poly64x1_t

impl Send for poly64x1x2_t

impl Send for poly64x1x3_t

impl Send for poly64x1x4_t

impl Send for poly64x2_t

impl Send for poly64x2x2_t

impl Send for poly64x2x3_t

impl Send for poly64x2x4_t

impl Send for uint8x4_t

impl Send for uint8x8_t

impl Send for uint8x8x2_t

impl Send for uint8x8x3_t

impl Send for uint8x8x4_t

impl Send for uint8x16_t

impl Send for uint8x16x2_t

impl Send for uint8x16x3_t

impl Send for uint8x16x4_t

impl Send for uint16x4_t

impl Send for uint16x4x2_t

impl Send for uint16x4x3_t

impl Send for uint16x4x4_t

impl Send for uint16x8_t

impl Send for uint16x8x2_t

impl Send for uint16x8x3_t

impl Send for uint16x8x4_t

impl Send for uint32x2_t

impl Send for uint32x2x2_t

impl Send for uint32x2x3_t

impl Send for uint32x2x4_t

impl Send for uint32x4_t

impl Send for uint32x4x2_t

impl Send for uint32x4x3_t

impl Send for uint32x4x4_t

impl Send for uint64x1_t

impl Send for uint64x1x2_t

impl Send for uint64x1x3_t

impl Send for uint64x1x4_t

impl Send for uint64x2_t

impl Send for uint64x2x2_t

impl Send for uint64x2x3_t

impl Send for uint64x2x4_t

impl Send for vector_bool_char

impl Send for vector_bool_int

impl Send for vector_bool_long

impl Send for vector_bool_short

impl Send for vector_double

impl Send for vector_float

impl Send for vector_signed_char

impl Send for vector_signed_int

impl Send for vector_signed_long

impl Send for vector_signed_short

impl Send for vector_unsigned_char

impl Send for vector_unsigned_int

impl Send for vector_unsigned_long

impl Send for vector_unsigned_short

impl Send for v128

impl Send for CpuidResult

impl Send for __m128

impl Send for __m128bh

impl Send for __m128d

impl Send for __m128i

impl Send for __m256

impl Send for __m256bh

impl Send for __m256d

impl Send for __m256i

impl Send for __m512

impl Send for __m512bh

impl Send for __m512d

impl Send for __m512i

impl Send for TryFromSliceError

impl Send for core::ascii::EscapeDefault

impl Send for BorrowError

impl Send for BorrowMutError

impl Send for CharTryFromError

impl Send for DecodeUtf16Error

impl Send for core::char::EscapeDebug

impl Send for core::char::EscapeDefault

impl Send for core::char::EscapeUnicode

impl Send for ParseCharError

impl Send for ToLowercase

impl Send for ToUppercase

impl Send for TryFromCharError

impl Send for CStr

impl Send for FromBytesUntilNulError

impl Send for FromBytesWithNulError

impl Send for Error

impl Send for SipHasher

impl Send for BasicBlock

impl Send for Assume

impl Send for AddrParseError

impl Send for Ipv4Addr

impl Send for Ipv6Addr

impl Send for SocketAddrV4

impl Send for SocketAddrV6

impl Send for NonZeroI8

impl Send for NonZeroI16

impl Send for NonZeroI32

impl Send for NonZeroI64

impl Send for NonZeroI128

impl Send for NonZeroIsize

impl Send for NonZeroU8

impl Send for NonZeroU16

impl Send for NonZeroU32

impl Send for NonZeroU64

impl Send for NonZeroU128

impl Send for NonZeroUsize

impl Send for ParseFloatError

impl Send for ParseIntError

impl Send for TryFromIntError

impl Send for RangeFull

impl Send for core::ptr::Alignment

impl Send for TimSortRun

impl Send for ParseBoolError

impl Send for Utf8Error

impl Send for AtomicBool

impl Send for AtomicI8

impl Send for AtomicI16

impl Send for AtomicI32

impl Send for AtomicI64

impl Send for AtomicIsize

impl Send for AtomicU8

impl Send for AtomicU16

impl Send for AtomicU32

impl Send for AtomicU64

impl Send for AtomicUsize

impl Send for RawWakerVTable

impl Send for Duration

impl Send for TryFromFloatSecsError

impl Send for PhantomPinned

impl<'a> !Send for Demand<'a>

impl<'a> !Send for Source<'a>

impl<'a> !Send for Arguments<'a>

impl<'a> !Send for Formatter<'a>

impl<'a> !Send for PanicInfo<'a>

impl<'a> !Send for Context<'a>

impl<'a> Send for Location<'a>

impl<'a> Send for EscapeAscii<'a>

impl<'a> Send for CharSearcher<'a>

impl<'a> Send for Bytes<'a>

impl<'a> Send for CharIndices<'a>

impl<'a> Send for Chars<'a>

impl<'a> Send for EncodeUtf16<'a>

impl<'a> Send for core::str::EscapeDebug<'a>

impl<'a> Send for core::str::EscapeDefault<'a>

impl<'a> Send for core::str::EscapeUnicode<'a>

impl<'a> Send for Lines<'a>

impl<'a> Send for LinesAny<'a>

impl<'a> Send for SplitAsciiWhitespace<'a>

impl<'a> Send for SplitWhitespace<'a>

impl<'a> Send for Utf8Chunk<'a>

impl<'a> Send for Utf8Chunks<'a>

impl<'a, 'b> !Send for DebugList<'a, 'b>

impl<'a, 'b> !Send for DebugMap<'a, 'b>

impl<'a, 'b> !Send for DebugSet<'a, 'b>

impl<'a, 'b> !Send for DebugStruct<'a, 'b>

impl<'a, 'b> !Send for DebugTuple<'a, 'b>

impl<'a, 'b> Send for CharSliceSearcher<'a, 'b>

impl<'a, 'b> Send for StrSearcher<'a, 'b>

impl<'a, 'b, const N: usize> Send for CharArrayRefSearcher<'a, 'b, N>

impl<'a, 'f> !Send for VaList<'a, 'f>

impl<'a, A> Send for core::option::Iter<'a, A>where A: Sync,

impl<'a, A> Send for core::option::IterMut<'a, A>where A: Send,

impl<'a, F> Send for CharPredicateSearcher<'a, F>where F: Send,

impl<'a, I> Send for ByRefSized<'a, I>where I: Send,

impl<'a, P> Send for MatchIndices<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for Matches<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for RMatchIndices<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for RMatches<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for core::str::RSplit<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for core::str::RSplitN<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for RSplitTerminator<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for core::str::Split<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for core::str::SplitInclusive<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for core::str::SplitN<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, P> Send for SplitTerminator<'a, P>where <P as Pattern<'a>>::Searcher: Send,

impl<'a, T> Send for core::result::Iter<'a, T>where T: Sync,

impl<'a, T> Send for core::result::IterMut<'a, T>where T: Send,

impl<'a, T> Send for Chunks<'a, T>where T: Sync,

impl<'a, T> Send for ChunksExact<'a, T>where T: Sync,

impl<'a, T> Send for RChunks<'a, T>where T: Sync,

impl<'a, T> Send for RChunksExact<'a, T>where T: Sync,

impl<'a, T> Send for Windows<'a, T>where T: Sync,

impl<'a, T, P> Send for GroupBy<'a, T, P>where P: Send, T: Sync,

impl<'a, T, P> Send for GroupByMut<'a, T, P>where P: Send, T: Send,

impl<'a, T, P> Send for core::slice::RSplit<'a, T, P>where P: Send, T: Sync,

impl<'a, T, P> Send for RSplitMut<'a, T, P>where P: Send, T: Send,

impl<'a, T, P> Send for core::slice::RSplitN<'a, T, P>where P: Send, T: Sync,

impl<'a, T, P> Send for RSplitNMut<'a, T, P>where P: Send, T: Send,

impl<'a, T, P> Send for core::slice::Split<'a, T, P>where P: Send, T: Sync,

impl<'a, T, P> Send for core::slice::SplitInclusive<'a, T, P>where P: Send, T: Sync,

impl<'a, T, P> Send for SplitInclusiveMut<'a, T, P>where P: Send, T: Send,

impl<'a, T, P> Send for SplitMut<'a, T, P>where P: Send, T: Send,

impl<'a, T, P> Send for core::slice::SplitN<'a, T, P>where P: Send, T: Sync,

impl<'a, T, P> Send for SplitNMut<'a, T, P>where P: Send, T: Send,

impl<'a, T, const N: usize> !Send for ArrayWindows<'a, T, N>

impl<'a, T, const N: usize> Send for core::slice::ArrayChunks<'a, T, N>where T: Sync,

impl<'a, T, const N: usize> Send for ArrayChunksMut<'a, T, N>where T: Send,

impl<'a, const N: usize> Send for CharArraySearcher<'a, N>

impl<'b, T> !Send for Ref<'b, T>

impl<'b, T> !Send for RefMut<'b, T>

impl<'f> !Send for VaListImpl<'f>

impl<A> Send for Repeat<A>where A: Send,

impl<A> Send for core::option::IntoIter<A>where A: Send,

impl<A, B> Send for Chain<A, B>where A: Send, B: Send,

impl<A, B> Send for Zip<A, B>where A: Send, B: Send,

impl<B, C> Send for ControlFlow<B, C>where B: Send, C: Send,

impl<F> Send for PollFn<F>where F: Send,

impl<F> Send for FromFn<F>where F: Send,

impl<F> Send for OnceWith<F>where F: Send,

impl<F> Send for RepeatWith<F>where F: Send,

impl<H> Send for BuildHasherDefault<H>

impl<I> Send for FromIter<I>where I: Send,

impl<I> Send for DecodeUtf16<I>where I: Send,

impl<I> Send for Cloned<I>where I: Send,

impl<I> Send for Copied<I>where I: Send,

impl<I> Send for Cycle<I>where I: Send,

impl<I> Send for Enumerate<I>where I: Send,

impl<I> Send for Flatten<I>where I: Send, <<I as Iterator>::Item as IntoIterator>::IntoIter: Send,

impl<I> Send for Fuse<I>where I: Send,

impl<I> Send for Intersperse<I>where I: Send, <I as Iterator>::Item: Send,

impl<I> Send for Peekable<I>where I: Send, <I as Iterator>::Item: Send,

impl<I> Send for Skip<I>where I: Send,

impl<I> Send for StepBy<I>where I: Send,

impl<I> Send for Take<I>where I: Send,

impl<I, F> Send for FilterMap<I, F>where F: Send, I: Send,

impl<I, F> Send for Inspect<I, F>where F: Send, I: Send,

impl<I, F> Send for Map<I, F>where F: Send, I: Send,

impl<I, G> Send for IntersperseWith<I, G>where G: Send, I: Send, <I as Iterator>::Item: Send,

impl<I, P> Send for Filter<I, P>where I: Send, P: Send,

impl<I, P> Send for MapWhile<I, P>where I: Send, P: Send,

impl<I, P> Send for SkipWhile<I, P>where I: Send, P: Send,

impl<I, P> Send for TakeWhile<I, P>where I: Send, P: Send,

impl<I, St, F> Send for Scan<I, St, F>where F: Send, I: Send, St: Send,

impl<I, U, F> Send for FlatMap<I, U, F>where F: Send, I: Send, <U as IntoIterator>::IntoIter: Send,

impl<I, const N: usize> Send for core::iter::ArrayChunks<I, N>where I: Send, <I as Iterator>::Item: Send,

impl<Idx> Send for Range<Idx>where Idx: Send,

impl<Idx> Send for RangeFrom<Idx>where Idx: Send,

impl<Idx> Send for RangeInclusive<Idx>where Idx: Send,

impl<Idx> Send for RangeTo<Idx>where Idx: Send,

impl<Idx> Send for RangeToInclusive<Idx>where Idx: Send,

impl<P> Send for Pin<P>where P: Send,

impl<Ret, T> Send for fn (T₁, T₂, …, Tₙ) -> Ret

impl<T> Send for Bound<T>where T: Send,

impl<T> Send for Option<T>where T: Send,

impl<T> Send for Poll<T>where T: Send,

impl<T> Send for [T]where T: Send,

impl<T> Send for (T₁, T₂, …, Tₙ)where T: Send,

impl<T> Send for OnceCell<T>where T: Send,

impl<T> Send for Reverse<T>where T: Send,

impl<T> Send for Pending<T>

impl<T> Send for Ready<T>where T: Send,

impl<T> Send for Empty<T>

impl<T> Send for Once<T>where T: Send,

impl<T> Send for Rev<T>where T: Send,

impl<T> Send for Discriminant<T>

impl<T> Send for Saturating<T>where T: Send,

impl<T> Send for Wrapping<T>where T: Send,

impl<T> Send for Yeet<T>where T: Send,

impl<T> Send for AssertUnwindSafe<T>where T: Send,

impl<T> Send for core::result::IntoIter<T>where T: Send,

impl<T> Send for MaybeUninit<T>where T: Send,

impl<T, E> Send for Result<T, E>where E: Send, T: Send,

impl<T, F> Send for LazyCell<T, F>where F: Send, T: Send,

impl<T, F> Send for Successors<T, F>where F: Send, T: Send,

impl<T, const LANES: usize> Send for Mask<T, LANES>where T: Send,

impl<T, const N: usize> Send for [T; N]where T: Send,

impl<T, const N: usize> Send for core::array::IntoIter<T, N>where T: Send,

impl<T, const N: usize> Send for Simd<T, N>where T: Send,

impl<T, const N: usize> Send for [MaybeUninit<T>; N]where T: Send,

impl<T: ?Sized> Send for SyncUnsafeCell<T>where T: Send,

impl<T: ?Sized> Send for UnsafeCell<T>where T: Send,

impl<T: ?Sized> Send for ManuallyDrop<T>where T: Send,

impl<T: ?Sized> Send for Exclusive<T>where T: Send,

impl<T: ?Sized> Send for PhantomData<T>where T: Send,

impl<Y, R> Send for GeneratorState<Y, R>where R: Send, Y: Send,

impl<const LANES: usize> Send for LaneCount<LANES>

impl<const N: usize> Send for GetManyMutError<N>

impl<const N: usize> Send for [u8; N]