Struct zng_app_context :: RwLockReadGuardOwned Copy item path

impl<T> RwLockReadGuardOwned<T>

pub fn lock(own: Arc<RwLock<T>>) -> Self

Lock owned.

See parking_lot::RwLock::read for more details.

pub fn lock_recursive(own: Arc<RwLock<T>>) -> Self

Locks this RwLock with shared read access, blocking the current thread until it can be acquired.

See parking_lot::RwLock::read_recursive for more details.

pub fn try_lock(own: Arc<RwLock<T>>) -> Option<Self>

Try lock owned.

See parking_lot::RwLock::try_read for more details.

pub fn try_lock_recursive(own: Arc<RwLock<T>>) -> Option<Self>

Try lock owned.

See parking_lot::RwLock::try_read for more details.

pub fn map<O>( guard: Self, map: impl FnOnce(&T) -> &O, ) -> MappedRwLockReadGuardOwned<T, O>

Make a new MappedRwLockReadGuardOwned for a component of the locked data.

This is an associated function that needs to be used as RwLockReadGuardOwned::map(...). A method would interfere with methods of the same name on the contents of the locked data.

Trait Implementations§

impl<T> Deref for RwLockReadGuardOwned<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

Auto Trait Implementations§

impl<T> !UnwindSafe for RwLockReadGuardOwned<T>

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more