Struct RpcCallEvent 

pub struct RpcCallEvent {
    pub caller: u64,
    pub callee: u64,
    pub method: String,
    pub latency_ms: u32,
    pub status: RpcCallStatus,
    pub request_bytes: u32,
    pub response_bytes: u32,
    pub direction: RpcDirection,
    pub ts_unix_ms: u64,
}

Single observed RPC boundary. All fields are populated from the substrate’s call path at fire time; the observer must not mutate them (the type is owned for cheap per-call construction).

Fields

caller: u64

The 64-bit node id of the calling node. Equal to local_node_id on Outbound events.

callee: u64

The 64-bit node id of the responding node.

method: String

Service / method name as passed into call_typed or registered via serve_rpc_typed.

latency_ms: u32

Wall-clock-equivalent elapsed time between request send (caller side) or dispatch (server side) and the observation point. Truncated to ms — observers in this codebase don’t need ns resolution and u32 keeps the struct compact.

status: RpcCallStatus

Outcome of the call at the observation point.

request_bytes: u32

Wire payload size of the request body (excluding the 24-byte EventMeta prefix). 0 when not available (transport-error branches before the body was framed).

response_bytes: u32

Wire payload size of the response body. 0 when not available (timeout, transport error, or cancellation before the response arrived).

direction: RpcDirection

Whether the observation came from the caller side (Outbound) or the server side (Inbound).

ts_unix_ms: u64

Unix-ms timestamp captured at fire time. Best-effort (pre-1970 clocks read 0).

Trait Implementations

impl Clone for RpcCallEvent

fn clone(&self) -> RpcCallEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RpcCallEvent

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

Formats the value using the given formatter.