Struct StatePayload 

pub struct StatePayload {
    pub online: bool,
    pub timestamp: i64,
}

A Host Application STATE message body.

Fields

online: bool

Whether the Host Application is online.

timestamp: i64

Epoch milliseconds (UTC) of this state.

Implementations

impl StatePayload

pub const fn new(online: bool, timestamp: i64) -> Self

Construct a STATE payload.

pub fn to_json(&self) -> String

Serialize to the canonical JSON form {"online":<bool>,"timestamp":<ms>}.

pub fn parse(json: &str) -> Result<Self>

Parse a STATE JSON payload.

Tolerant of whitespace and key order; requires both online and timestamp. The STATE object has no nested structure, so this small hand parser is sufficient and total.

Errors

Returns SparkplugError::InvalidState for malformed JSON, a missing key, or an out-of-form value.

Trait Implementations

impl Clone for StatePayload

fn clone(&self) -> StatePayload

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StatePayload

impl Debug for StatePayload

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

Formats the value using the given formatter.

impl Eq for StatePayload

impl PartialEq for StatePayload

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for StatePayload