Struct futures_channel::lock::Lock

pub(crate) struct Lock<T> {
    locked: AtomicBool,
    data: UnsafeCell<T>,
}

A “mutex” around a value, similar to std::sync::Mutex<T>.

This lock only supports the try_lock operation, however, and does not implement poisoning.

Fields

locked: AtomicBool

data: UnsafeCell<T>

Implementations

impl<T> Lock<T>

pub(crate) fn new(t: T) -> Self

Creates a new lock around the given value.

pub(crate) fn try_lock(&self) -> Option<TryLock<'_, T>>

Attempts to acquire this lock, returning whether the lock was acquired or not.

If Some is returned then the data this lock protects can be accessed through the sentinel. This sentinel allows both mutable and immutable access.

If None is returned then the lock is already locked, either elsewhere on this thread or on another thread.

Trait Implementations

impl<T: Debug> Debug for Lock<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Send> Send for Lock<T>

impl<T: Send> Sync for Lock<T>