Enum Lifecycle 

#[non_exhaustive]
pub enum Lifecycle {
    Idle,
    Serving,
    Draining,
    Stopped,
    Failed,
}

The state of one gRPC server.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Idle

Not started yet.

Serving

The listener is bound and accepts calls.

Draining

Shutdown started. No new connections. In-flight calls finish.

Stopped

The server stopped. Terminal.

Failed

The server could not start, or stopped unexpectedly. Terminal.

Implementations

impl Lifecycle

pub const fn next(self, event: LifecycleEvent) -> Option<Self>

The next state after event, or None if event is illegal here.

pub const fn is_ready(self) -> bool

true only in Serving.

pub const fn is_terminal(self) -> bool

true in Stopped and Failed.

pub const fn as_str(self) -> &'static str

Lower-case name, as used in health details.

Trait Implementations

impl Clone for Lifecycle

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Lifecycle

impl Debug for Lifecycle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Lifecycle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Lifecycle

impl Hash for Lifecycle

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Lifecycle

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Lifecycle