Struct BackendAnnounce 

#[non_exhaustive]
pub struct BackendAnnounce {
    pub versions: OpVersions,
    pub backends: Vec<BackendDescriptor>,
}

The managed backend’s capability announcement to the streaming server, sent over their private socket on connect (AGDX_BACKEND_HELLO_CODE). The streaming server caches the versions and the advertised backends, and relays them verbatim when it answers a client AGDX_HELLO / capabilities probe, so the streaming server never hardcodes feature bits or backend identities the backend may or may not serve. This makes the backend the single source of its own capability truth and keeps the binary features bitset and the HTTP capability flags in agreement with what is actually served. A separate type from HelloReply because the direction and sender differ (backend to streaming server, not server to client).

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

versions: OpVersions

backends: Vec<BackendDescriptor>

Materialization backends the server currently exposes (the ones it has open). A client routes only to an advertised id. Empty (the default) is skipped on encode, so a pre-backends announce stays byte-identical and an older reader simply sees no advertised backends.

Implementations

impl BackendAnnounce

pub fn new(versions: OpVersions) -> Self

Constructor for the non-exhaustive wire struct.

pub fn with_backends(self, backends: Vec<BackendDescriptor>) -> Self

Returns a copy advertising backends.

Trait Implementations

impl Clone for BackendAnnounce

fn clone(&self) -> BackendAnnounce

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BackendAnnounce

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BackendAnnounce

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for BackendAnnounce

impl PartialEq for BackendAnnounce

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for BackendAnnounce

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 BackendAnnounce