Struct Shutdown
pub struct Shutdown { /* private fields */ }
Expand description
The Shutdown
struct is the main entry point to the shutdown system.
It is created by calling Shutdown::new
, which takes a Future
that
will be awaited on when shutdown is requested. Most users will want to
create a Shutdown
with Shutdown::default
, which uses the default
signal handler to trigger shutdown. See default_signal
for more info.
(NOTE: that these defaults are not available when compiling with –cfg loom)
See the README for more info on how to use this crate.
Implementations§
§impl Shutdown
impl Shutdown
pub fn builder() -> ShutdownBuilder<WithSignal<Default>>
pub fn builder() -> ShutdownBuilder<WithSignal<Default>>
Create a ShutdownBuilder
allowing you to add a delay,
a custom shutdown trigger signal and even an overwrite signal
to force a shutdown even if workers are still busy.
pub fn no_signal() -> Shutdown
pub fn no_signal() -> Shutdown
Creates a new Shutdown
struct with no signal.
This is useful if you want to support a Waitgroup like system where you wish to wait for all open tasks without requiring a signal to be triggered first.
pub fn guard(&self) -> ShutdownGuard
pub fn guard(&self) -> ShutdownGuard
Returns a ShutdownGuard
which primary use
is to prevent the Shutdown
from shutting down.
The creation of a ShutdownGuard
is lockfree.
pub fn guard_weak(&self) -> WeakShutdownGuard
pub fn guard_weak(&self) -> WeakShutdownGuard
Returns a WeakShutdownGuard
which in contrast to
ShutdownGuard
does not prevent the Shutdown
from shutting down.
Instead it is used to wait for
“shutdown signal” to be triggered or to create
a ShutdownGuard
which prevents the Shutdown
once and only once it is needed.
The creation of a WeakShutdownGuard
is lockfree.
pub fn spawn_task<T>(&self, task: T) -> JoinHandle<<T as Future>::Output>
pub fn spawn_task<T>(&self, task: T) -> JoinHandle<<T as Future>::Output>
Returns a Tokio [crate::sync::JoinHandle
] that can be awaited on
to wait for the spawned task to complete. See
[crate::sync::spawn
] for more information.
pub fn spawn_task_fn<T, F>(&self, task: F) -> JoinHandle<<T as Future>::Output>
pub fn spawn_task_fn<T, F>(&self, task: F) -> JoinHandle<<T as Future>::Output>
Returns a Tokio [crate::sync::JoinHandle
] that can be awaited on
to wait for the spawned task (fn) to complete. See
[crate::sync::spawn
] for more information.
pub async fn shutdown(self) -> Duration
pub async fn shutdown(self) -> Duration
Returns a future that completes once the Shutdown
has been triggered
and all ShutdownGuard
s have been dropped.
The resolved Duration
is the time it took for the Shutdown
to
to wait for all ShutdownGuard
s to be dropped.
You can use Shutdown::shutdown_with_limit
to limit the time the
Shutdown
waits for all ShutdownGuard
s to be dropped.
§Panics
This method can panic if the internal mutex is poisoned.
pub async fn shutdown_with_limit(
self,
limit: Duration,
) -> Result<Duration, TimeoutError>
pub async fn shutdown_with_limit( self, limit: Duration, ) -> Result<Duration, TimeoutError>
Returns a future that completes once the Shutdown
has been triggered
and all ShutdownGuard
s have been dropped or the given Duration
has elapsed.
The resolved Duration
is the time it took for the Shutdown
to
to wait for all ShutdownGuard
s to be dropped.
You can use Shutdown::shutdown
to wait for all ShutdownGuard
s
to be dropped without a time limit.
§Panics
This method can panic if the internal mutex is poisoned.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Shutdown
impl RefUnwindSafe for Shutdown
impl Send for Shutdown
impl Sync for Shutdown
impl Unpin for Shutdown
impl UnwindSafe for Shutdown
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