Struct fragile::SemiSticky
source · [−]pub struct SemiSticky<T> { /* private fields */ }
Expand description
A SemiSticky<T>
keeps a value T stored in a thread if it has a drop.
This is a combined version of Fragile<T>
and Sticky<T>
. If the type
does not have a drop it will effectively be a Fragile<T>
, otherwise it
will be internally behave like a Sticky<T>
.
Implementations
Creates a new SemiSticky
wrapping a value
.
The value that is moved into the SemiSticky
can be non Send
and
will be anchored to the thread that created the object. If the
sticky wrapper type ends up being send from thread to thread
only the original thread can interact with the value. In case the
value does not have Drop
it will be stored in the SemiSticky
instead.
Returns true
if the access is valid.
This will be false
if the value was sent to another thread.
Consumes the SemiSticky
, returning the wrapped value.
Panics
Panics if called from a different thread than the one where the original value was created.
Consumes the SemiSticky
, returning the wrapped value if successful.
The wrapped value is returned if this is called from the same thread
as the one where the original value was created, otherwise the
SemiSticky
is returned as Err(self)
.
Mutably borrows the wrapped value.
Panics
Panics if the calling thread is not the one that wrapped the value.
For a non-panicking variant, use try_get_mut
.
Tries to immutably borrow the wrapped value.
Returns None
if the calling thread is not the one that wrapped the value.
Tries to mutably borrow the wrapped value.
Returns None
if the calling thread is not the one that wrapped the value.
Trait Implementations
Returns the “default value” for a type. Read more
Performs the conversion.
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
Auto Trait Implementations
impl<T> RefUnwindSafe for SemiSticky<T> where
T: RefUnwindSafe,
impl<T> Send for SemiSticky<T>
impl<T> Sync for SemiSticky<T>
impl<T> Unpin for SemiSticky<T>
impl<T> UnwindSafe for SemiSticky<T> where
T: UnwindSafe + RefUnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more