Struct wait_guard::WaitGuard

pub struct WaitGuard { /* private fields */ }

An object that holds a blocked Task that will be automatically unblocked upon drop.

Implementations

impl WaitGuard

pub fn new(task: TaskRef) -> Result<Self, RunState>

Blocks the given Task and returns a new WaitGuard object that will automatically unblock that Task when it is dropped.

Returns an error if the task cannot be blocked; see [task::Task::block] for more details.

pub fn block_again(&self) -> Result<RunState, RunState>

Blocks the task guarded by this guard, which is useful to re-block a task after it spuriously woken up.

Returns an error if the task cannot be blocked; see [task::Task::block] for more details.

pub fn task(&self) -> &TaskRef

Returns a reference to the task being blocked by this guard.

Trait Implementations

impl Drop for WaitGuard

fn drop(&mut self)

Executes the destructor for this type.