[−][src]Struct wayland_commons::utils::UserData

pub struct UserData { /* fields omitted */ }

A wrapper for user data, able to store any type, and correctly handling access from a wrong thread

Methods

impl UserData[src]

pub fn new_threadsafe<T: Send + Sync + 'static>(value: T) -> UserData[src]

Create a new UserData using a threadsafe type

Its contents can be accessed from any thread.

pub fn new<T: 'static>(value: T) -> UserData[src]

Create a new UserData using a non-threadsafe type

Its contents can only be accessed from the same thread as the one you are creating it.

pub fn empty() -> UserData[src]

Create a new UserData containing nothing

pub fn get<T: 'static>(&self) -> Option<&T>[src]

Attempt to access the wrapped user data

Will return None if either:

  • The requested type T does not match the type used for construction
  • This UserData has been created using the non-threadsafe variant and access is attempted from an other thread than the one it was created on

Trait Implementations

Blanket Implementations

impl<T> From for T[src]

impl<T, U> Into for T where
    U: From<T>, [src]

impl<T, U> TryFrom for T where
    U: Into<T>, [src]

type Error = !

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized, [src]

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

impl<T> BorrowMut for T where
    T: ?Sized, [src]

impl<T, U> TryInto for T where
    U: TryFrom<T>, [src]

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

🔬 This is a nightly-only experimental API. (try_from)

The type returned in the event of a conversion error.