pub unsafe auto trait Send { }Expand description
Types that can be transferred across thread boundaries.
This trait is automatically implemented when the compiler determines it’s appropriate.
An example of a non-Send type is the reference-counting pointer
rc::Rc. If two threads attempt to clone Rcs that point to the same
reference-counted value, they might try to update the reference count at the
same time, which is undefined behavior because Rc doesn’t use atomic
operations. Its cousin sync::Arc does use atomic operations (incurring
some overhead) and thus is Send.
See the Nomicon and the Sync trait for more details.
Implementors§
impl !Send for Arguments<'_>
impl !Send for LocalWaker
impl !Send for Args
impl !Send for ArgsOs
impl Send for kvarn_async::prelude::Bytes
impl Send for BytesMut
impl Send for kvarn_async::prelude::compact_str::Drain<'_>
impl Send for kvarn_async::prelude::compact_str::core::ffi::c_str::Bytes<'_>
impl Send for Waker
impl Send for alloc::string::Drain<'_>
impl Send for AbortHandle
impl<'a> Send for IoSlice<'a>
impl<'a> Send for IoSliceMut<'a>
impl<'a> Send for Notified<'a>
impl<'a, R, T> Send for MappedMutexGuard<'a, R, T>
impl<'a, R, T> Send for MappedRwLockReadGuard<'a, R, T>
impl<'a, R, T> Send for MappedRwLockWriteGuard<'a, R, T>
impl<'a, T> Send for kvarn_async::prelude::header::Drain<'a, T>where
T: Send,
impl<'a, T> Send for kvarn_async::prelude::header::Iter<'a, T>where
T: Sync,
impl<'a, T> Send for kvarn_async::prelude::header::IterMut<'a, T>where
T: Send,
impl<'a, T> Send for ValueDrain<'a, T>where
T: Send,
impl<'a, T> Send for ValueIterMut<'a, T>where
T: Send,
impl<'a, T> Send for Drain<'a, T>where
T: Send + Array,
impl<'a, T> Send for MappedMutexGuard<'a, T>
impl<A> Send for SmallVec<A>where
A: Array,
<A as Array>::Item: Send,
impl<Dyn> Send for DynMetadata<Dyn>where
Dyn: ?Sized,
impl<R, G> Send for RawReentrantMutex<R, G>
impl<R, G, T> Send for ReentrantMutex<R, G, T>
impl<R, T> Send for Mutex<R, T>
impl<R, T> Send for RwLock<R, T>
impl<T> !Send for *const Twhere
T: ?Sized,
impl<T> !Send for *mut Twhere
T: ?Sized,
impl<T> !Send for NonNull<T>where
T: ?Sized,
NonNull pointers are not Send because the data they reference may be aliased.
impl<T> !Send for std::sync::mutex::MappedMutexGuard<'_, T>where
T: ?Sized,
impl<T> !Send for MutexGuard<'_, T>where
T: ?Sized,
impl<T> !Send for ReentrantLockGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::rwlock::MappedRwLockReadGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::rwlock::MappedRwLockWriteGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::rwlock::RwLockReadGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::rwlock::RwLockWriteGuard<'_, T>where
T: ?Sized,
impl<T> Send for &T
impl<T> Send for kvarn_async::prelude::Mutex<T>
impl<T> Send for kvarn_async::prelude::RwLock<T>
impl<T> Send for Cell<T>
impl<T> Send for RefCell<T>
impl<T> Send for NonZero<T>where
T: ZeroablePrimitive + Send,
impl<T> Send for ChunksExactMut<'_, T>where
T: Send,
impl<T> Send for ChunksMut<'_, T>where
T: Send,
impl<T> Send for kvarn_async::prelude::compact_str::core::slice::Iter<'_, T>where
T: Sync,
impl<T> Send for kvarn_async::prelude::compact_str::core::slice::IterMut<'_, 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 for ThinBox<T>
ThinBox<T> is Send if T is Send because the data is owned.