Enum ChildMessage 

pub enum ChildMessage {
    Ready,
    Metric {
        name: String,
        value: f64,
    },
    ActionReply {
        action: String,
        body: String,
        id: Option<u64>,
    },
}

Child→daemon shepherd-channel message (spec §7 — kebab-case kinds)

Variants

Ready

{"kind":"ready"} — readiness signal (wait_ready gate)

Metric

Custom metric sample

Fields

name: String

Metric name

value: f64

Metric value

ActionReply

Reply to a daemon-initiated action

Fields

action: String

The action name this replies to

body: String

Free-form reply body

id: Option<u64>

The id of the ShepherdMessage::Action this answers, echoed back verbatim. None when the app did not echo it.

Optional, and that is the whole design. An app that echoes gets exact correlation: its reply reaches the wait that asked, even when an earlier trigger of the same action name timed out and is still owed a reply. An app that does not echo — every app written before this field existed — sends no id key at all, and the daemon falls back to matching by name and order exactly as it did before. Nothing already speaking this channel breaks, which is what makes the field additive on a wire with no handshake.

Trait Implementations

impl Clone for ChildMessage

fn clone(&self) -> ChildMessage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChildMessage

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ChildMessage

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ChildMessage

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ChildMessage

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ChildMessage