systemprompt-agent 0.2.2

Agent-to-Agent (A2A) protocol for systemprompt.io AI governance: streaming, JSON-RPC models, task lifecycle, .well-known discovery, and governed agent orchestration.
Documentation 
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use tokio::sync::broadcast;

use super::events::AgentEvent;

pub struct AgentEventBus {
    sender: broadcast::Sender<AgentEvent>,
}

impl AgentEventBus {
    pub fn new(capacity: usize) -> Self {
        let (sender, _) = broadcast::channel(capacity);
        Self { sender }
    }

    pub fn publish(&self, event: AgentEvent) {
        if let Err(e) = self.sender.send(event) {
            tracing::trace!(error = %e, "No active subscribers for agent event");
        }
    }

    pub fn subscribe(&self) -> broadcast::Receiver<AgentEvent> {
        self.sender.subscribe()
    }

    pub fn sender(&self) -> broadcast::Sender<AgentEvent> {
        self.sender.clone()
    }
}

impl Default for AgentEventBus {
    fn default() -> Self {
        Self::new(100)
    }
}

impl std::fmt::Debug for AgentEventBus {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        f.debug_struct("AgentEventBus")
            .field("sender", &"<broadcast channel>")
            .finish()
    }
}