Method CleanupInactiveSessions

internal/vnc/session_manager.go:572–619

CleanupInactiveSessions removes sessions that haven't been accessed recently.

(maxAge time.Duration)

// CleanupInactiveSessions removes sessions that haven't been accessed recently.
func (sm *SessionManager) CleanupInactiveSessions(maxAge time.Duration) {
	sm.mutex.Lock()
	defer sm.mutex.Unlock()

	var expiredSessions []string

	// Find expired sessions
	for sessionID, session := range sm.sessions {
		if session.IsExpired(maxAge) {
			expiredSessions = append(expiredSessions, sessionID)
		}
	}

	// Only log and clean up if there are expired sessions
	if len(expiredSessions) == 0 {
		return
	}

	if sm.logger != nil {
		sm.logger.Info("Found %d expired VNC sessions to clean up", len(expiredSessions))
	}

	// Clean up expired sessions
	for _, sessionID := range expiredSessions {
		session := sm.sessions[sessionID]

		if sm.logger != nil {
			sm.logger.Info("Cleaning up expired VNC session: session_id=%s, target_type=%s, target_name=%s, age=%v, inactive_for=%v",
				sessionID, session.TargetType, session.TargetName, time.Since(session.CreatedAt), time.Since(session.LastUsed))
		}

		// Shutdown the session
		if err := session.Shutdown(); err != nil && sm.logger != nil {
			sm.logger.Error("Failed to shutdown expired session: session_id=%s, error=%v", sessionID, err)
		}

		// Remove from sessions map
		delete(sm.sessions, sessionID)
	}

	// Notify callback of session count change
	sm.notifySessionCountChange()

	if sm.logger != nil {
		sm.logger.Info("Completed VNC session cleanup: cleaned_sessions=%d, remaining_sessions=%d",
			len(expiredSessions), len(sm.sessions))
	}
}

// Shutdown gracefully shuts down the session manager and all active sessions.
// This should be called when the application is shutting down to ensure