Struct futures_util::lock::MutexGuard [−][src]
pub struct MutexGuard<'a, T: ?Sized> { /* fields omitted */ }
Expand description
An RAII guard returned by the lock
and try_lock
methods.
When this structure is dropped (falls out of scope), the lock will be
unlocked.
Implementations
Returns a locked view over a portion of the locked data.
Example
use futures::lock::{Mutex, MutexGuard}; let data = Mutex::new(Some("value".to_string())); { let locked_str = MutexGuard::map(data.lock().await, |opt| opt.as_mut().unwrap()); assert_eq!(&*locked_str, "value"); }
Trait Implementations
Auto Trait Implementations
impl<'a, T> !RefUnwindSafe for MutexGuard<'a, T>
impl<'a, T: ?Sized> Unpin for MutexGuard<'a, T>
impl<'a, T> !UnwindSafe for MutexGuard<'a, T>