pub struct RwLockReadGuard<'a, T: 'a + ?Sized> { /* private fields */ }
Available on crate feature rwlock only.
Expand description

A guard that provides immutable data access.

When the guard falls out of scope it will decrement the read count, potentially releasing the lock.

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impl<'rwlock, T: ?Sized> RwLockReadGuard<'rwlock, T>

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pub fn leak(this: Self) -> &'rwlock T

Leak the lock guard, yielding a reference to the underlying data.

Note that this function will permanently lock the original lock for all but reading locks.

let mylock = spin::RwLock::new(0);

let data: &i32 = spin::RwLockReadGuard::leak(mylock.read());

assert_eq!(*data, 0);

Trait Implementations§

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impl<'rwlock, T: ?Sized + Debug> Debug for RwLockReadGuard<'rwlock, T>

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

Formats the value using the given formatter. Read more
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impl<'rwlock, T: ?Sized> Deref for RwLockReadGuard<'rwlock, T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &T

Dereferences the value.
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impl<'rwlock, T: ?Sized + Display> Display for RwLockReadGuard<'rwlock, T>

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

Formats the value using the given formatter. Read more
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impl<'rwlock, T: ?Sized> Drop for RwLockReadGuard<'rwlock, T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<T: ?Sized + Sync> Send for RwLockReadGuard<'_, T>

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impl<T: ?Sized + Sync> Sync for RwLockReadGuard<'_, T>

Auto Trait Implementations§

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impl<'a, T: ?Sized> RefUnwindSafe for RwLockReadGuard<'a, T>where T: RefUnwindSafe,

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impl<'a, T: ?Sized> Unpin for RwLockReadGuard<'a, T>

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impl<'a, T: ?Sized> UnwindSafe for RwLockReadGuard<'a, T>where T: RefUnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.