Struct darkfi::system::stoppable_task::StoppableTask
source · pub struct StoppableTask {
signal: CondVar,
barrier: CondVar,
pub task_id: u32,
}
Fields§
§signal: CondVar
Used to signal to the main running process that it should stop.
barrier: CondVar
When we call stop()
, we wait until the process is finished. This is used to prevent
stop()
from exiting until the task has closed.
task_id: u32
Used so we can keep StoppableTask in HashMap/HashSet
Implementations§
source§impl StoppableTask
impl StoppableTask
A task that can be prematurely stopped at any time.
let task = StoppableTask::new();
task.clone().start(
my_method(),
|result| self_.handle_stop(result),
Error::MyStopError,
executor,
);
Then at any time we can call task.stop()
to close the task.
pub fn new() -> Arc<Self>
sourcepub fn start<'a, MainFut, StopFut, StopFn, Error>(
self: Arc<Self>,
main: MainFut,
stop_handler: StopFn,
stop_value: Error,
executor: Arc<Executor<'a>>,
)
pub fn start<'a, MainFut, StopFut, StopFn, Error>( self: Arc<Self>, main: MainFut, stop_handler: StopFn, stop_value: Error, executor: Arc<Executor<'a>>, )
Starts the task.
main
is a function of the typeasync fn foo() -> ()
stop_handler
is a function of the typeasync fn handle_stop(result: Result<()>) -> ()
stop_value
is the Error code passed tostop_handler
whentask.stop()
is called
sourcepub async fn stop(&self)
pub async fn stop(&self)
Stops the task. On completion, guarantees the process has stopped. Can be called multiple times. After the first call, this does nothing.
sourcepub fn stop_nowait(&self)
pub fn stop_nowait(&self)
Sends a stop signal and returns immediately. Doesn’t guarantee the task stopped on completion.
Trait Implementations§
source§impl Drop for StoppableTask
impl Drop for StoppableTask
source§impl Hash for StoppableTask
impl Hash for StoppableTask
source§impl PartialEq for StoppableTask
impl PartialEq for StoppableTask
impl Eq for StoppableTask
Auto Trait Implementations§
impl !Freeze for StoppableTask
impl RefUnwindSafe for StoppableTask
impl Send for StoppableTask
impl Sync for StoppableTask
impl Unpin for StoppableTask
impl UnwindSafe for StoppableTask
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