Method WaitSessionAttached

pkg/server/session_manager.go:232–253

WaitSessionAttached blocks until a runtime is attached for sessionID (i.e. the session is ready to accept follow-ups and produce events), the timeout elapses, or ctx is cancelled. It returns true once the session is attached. Unlike WaitReady, which fires as soon as *any* session is ready, this is

(ctx context.Context, sessionID string, timeout time.Duration)

// session-scoped: a client that launched a specific run can wait for exactly
// that session instead of racing the server's startup.
func (sm *SessionManager) WaitSessionAttached(ctx context.Context, sessionID string, timeout time.Duration) bool {
	if _, ok := sm.runtimeSessions.Load(sessionID); ok {
		return true
	}

	ctx, cancel := context.WithTimeout(ctx, timeout)
	defer cancel()

	ticker := time.NewTicker(20 * time.Millisecond)
	defer ticker.Stop()
	for {
		select {
		case <-ctx.Done():
			_, ok := sm.runtimeSessions.Load(sessionID)
			return ok
		case <-ticker.C:
			if _, ok := sm.runtimeSessions.Load(sessionID); ok {
				return true
			}
		}
	}
}

// GetSessionStatus returns a lightweight snapshot of the session's current
// runtime state. Designed for late-joining SSE consumers that need to know