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.
Dyn Compatibility§
This trait is dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".
Implementors§
impl !Send for Args
impl !Send for ArgsOs
impl !Send for Arguments<'_>
impl !Send for LocalWaker
impl !Send for VarsOs
impl Send for Bytes<'_>
impl Send for surfman::wayland::connection::Connection
impl Send for surfman::x11::connection::Connection
impl Send for DIR
impl Send for alloc::string::Drain<'_>
impl Send for EGLBackedSurface
impl Send for EGLLibraryWrapper
impl Send for Egl
impl Send for Glx
impl Send for libloading::os::unix::Library
impl Send for libloading::safe::Library
impl Send for Location<'_>
impl Send for surfman::mesa_surfaceless::connection::NativeConnectionWrapper
impl Send for surfman::mesa_surfaceless::surface::Surface
impl Send for surfman::wayland::surface::Surface
impl Send for surfman::x11::surface::Surface
impl Send for TypeId
impl Send for Waker
impl Send for XInput
impl Send for XInput2
impl Send for Xcursor
impl Send for x11_dl::dpms::Xext
impl Send for x11_dl::sync::Xext
impl Send for x11_dl::xshm::Xext
impl Send for x11_dl::xf86vmode::Xf86vmode
impl Send for x11_dl::xrecord::Xf86vmode
impl Send for x11_dl::xtest::Xf86vmode
impl Send for Xft
impl Send for x11_dl::xlib::Xlib
impl Send for x11_dl::xfixes::Xlib
impl Send for x11_dl::xinerama::Xlib
impl Send for Xlib_xcb
impl Send for Xmu
impl Send for Xpresent
impl Send for Xrandr
impl Send for Xrandr_2_2_0
impl Send for Xrender
impl Send for Xss
impl Send for Xt
impl Send for wl_interface
impl<'a> Send for IoSlice<'a>
impl<'a> Send for IoSliceMut<'a>
impl<Dyn> Send for DynMetadata<Dyn>where
Dyn: ?Sized,
impl<T, A> !Send for Rc<T, A>
impl<T, A> !Send for UniqueRc<T, A>
impl<T, A> !Send for alloc::rc::Weak<T, A>
impl<T, A> Send for Arc<T, A>
impl<T, A> Send for Cursor<'_, T, A>
impl<T, A> Send for CursorMut<'_, T, A>
impl<T, A> Send for alloc::collections::vec_deque::drain::Drain<'_, T, A>
impl<T, A> Send for alloc::vec::drain::Drain<'_, T, A>
impl<T, A> Send for IntoIter<T, A>
impl<T, A> Send for LinkedList<T, A>
impl<T, A> Send for UniqueArc<T, A>
impl<T, A> Send for alloc::sync::Weak<T, A>
impl<T> !Send for *const Twhere
T: ?Sized,
impl<T> !Send for *mut Twhere
T: ?Sized,
impl<T> !Send for std::sync::nonpoison::mutex::MappedMutexGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::poison::mutex::MappedMutexGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::nonpoison::rwlock::MappedRwLockReadGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::poison::rwlock::MappedRwLockReadGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::nonpoison::rwlock::MappedRwLockWriteGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::poison::rwlock::MappedRwLockWriteGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::nonpoison::mutex::MutexGuard<'_, T>where
T: ?Sized,
A MutexGuard is not Send to maximize platform portability.
On platforms that use POSIX threads (commonly referred to as pthreads) there is a requirement to
release mutex locks on the same thread they were acquired.
For this reason, MutexGuard must not implement Send to prevent it being dropped from
another thread.
impl<T> !Send for std::sync::poison::mutex::MutexGuard<'_, T>where
T: ?Sized,
A MutexGuard is not Send to maximize platform portability.
On platforms that use POSIX threads (commonly referred to as pthreads) there is a requirement to
release mutex locks on the same thread they were acquired.
For this reason, MutexGuard must not implement Send to prevent it being dropped from
another thread.
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 ReentrantLockGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::nonpoison::rwlock::RwLockReadGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::poison::rwlock::RwLockReadGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::nonpoison::rwlock::RwLockWriteGuard<'_, T>where
T: ?Sized,
impl<T> !Send for std::sync::poison::rwlock::RwLockWriteGuard<'_, T>where
T: ?Sized,
impl<T> Send for &T
impl<T> Send for Atomic<T>where
T: AtomicPrimitive,
impl<T> Send for Cell<T>
impl<T> Send for ChunksExactMut<'_, T>where
T: Send,
impl<T> Send for ChunksMut<'_, T>where
T: Send,
impl<T> Send for core::slice::iter::Iter<'_, T>where
T: Sync,
impl<T> Send for alloc::collections::linked_list::Iter<'_, T>where
T: Sync,
impl<T> Send for core::slice::iter::IterMut<'_, T>where
T: Send,
impl<T> Send for alloc::collections::linked_list::IterMut<'_, T>where
T: Send,
impl<T> Send for JoinHandle<T>
impl<T> Send for std::sync::nonpoison::mutex::Mutex<T>
T must be Send for a Mutex to be Send because it is possible to acquire
the owned T from the Mutex via into_inner.
impl<T> Send for std::sync::poison::mutex::Mutex<T>
T must be Send for a Mutex to be Send because it is possible to acquire
the owned T from the Mutex via into_inner.
impl<T> Send for NonZero<T>where
T: ZeroablePrimitive + Send,
impl<T> Send for OnceLock<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 std::sync::mpmc::Receiver<T>where
T: Send,
impl<T> Send for std::sync::mpsc::Receiver<T>where
T: Send,
impl<T> Send for ReentrantLock<T>
impl<T> Send for RefCell<T>
impl<T> Send for std::sync::nonpoison::rwlock::RwLock<T>
impl<T> Send for std::sync::poison::rwlock::RwLock<T>
impl<T> Send for std::sync::mpmc::Sender<T>where
T: Send,
impl<T> Send for std::sync::mpsc::Sender<T>where
T: Send,
impl<T> Send for libloading::safe::Symbol<'_, T>where
T: Send,
impl<T> Send for libloading::os::unix::Symbol<T>where
T: Send,
impl<T> Send for SyncSender<T>where
T: Send,
impl<T> Send for ThinBox<T>
ThinBox<T> is Send if T is Send because the data is owned.