std::future::get_task_waker - Rust
Description: API documentation for the Rust `get_task_waker` fn in crate `std`.
Keywords: rust, rustlang, rust-lang, get_task_waker

# [−][src]Function std::future::get_task_waker

    pub fn get_task_waker<F, R>(f: F) -> R where
        F: FnOnce(&LocalWaker) -> R,

🔬 This is a nightly-only experimental API. (`gen_future` #50547)

Retrieves the thread-local task waker used by async/await futures.

This function acquires exclusive access to the task waker.

Panics if no waker has been set or if the waker has already been retrieved by a surrounding call to get_task_waker.

# Help

## Keyboard Shortcuts

`?`
  Show this help dialog
`S`
  Focus the search field
`↑`
  Move up in search results
`↓`
  Move down in search results
`↹`
  Switch tab
`⏎`
  Go to active search result
`+`
  Expand all sections
`-`
  Collapse all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g., `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g., `vec -> usize` or `* -> vec`)

Search multiple things at once by splitting your query with comma (e.g., `str,u8` or `String,struct:Vec,test`)