Struct AbortHandle
pub struct AbortHandle { /* private fields */ }Expand description
An owned permission to abort a spawned task, without awaiting its completion.
Unlike a JoinHandle, an AbortHandle does not represent the
permission to await the task’s completion, only to terminate it.
The task may be aborted by calling the AbortHandle::abort method.
Dropping an AbortHandle releases the permission to terminate the task
— it does not abort the task.
Be aware that tasks spawned using spawn_blocking cannot be aborted
because they are not async. If you call abort on a spawn_blocking task,
then this will not have any effect, and the task will continue running
normally. The exception is if the task has not started running yet; in that
case, calling abort may prevent the task from starting.
Implementations§
§impl AbortHandle
impl AbortHandle
pub fn abort(&self)
pub fn abort(&self)
Abort the task associated with the handle.
Awaiting a cancelled task might complete as usual if the task was
already completed at the time it was cancelled, but most likely it
will fail with a cancelled JoinError.
If the task was already cancelled, such as by JoinHandle::abort,
this method will do nothing.
Be aware that tasks spawned using spawn_blocking cannot be aborted
because they are not async. If you call abort on a spawn_blocking
task, then this will not have any effect, and the task will continue
running normally. The exception is if the task has not started running
yet; in that case, calling abort may prevent the task from starting.
See also the module level docs for more information on cancellation.
pub fn is_finished(&self) -> bool
pub fn is_finished(&self) -> bool
Checks if the task associated with this AbortHandle has finished.
Please note that this method can return false even if abort has been
called on the task. This is because the cancellation process may take
some time, and this method does not return true until it has
completed.
Trait Implementations§
Source§impl AbortHandle for AbortHandle
impl AbortHandle for AbortHandle
§impl Clone for AbortHandle
impl Clone for AbortHandle
§fn clone(&self) -> AbortHandle
fn clone(&self) -> AbortHandle
Returns a cloned AbortHandle that can be used to remotely abort this task.
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read more§impl Debug for AbortHandle
impl Debug for AbortHandle
impl RefUnwindSafe for AbortHandle
impl Send for AbortHandle
impl Sync for AbortHandle
impl UnwindSafe for AbortHandle
Auto Trait Implementations§
impl Freeze for AbortHandle
impl Unpin for AbortHandle
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