+ uint32_t pacing_rate; // In bytes per second. Default is ~0U (no limit).
+ int ttl; // Default is -1 (use operating system default).
+ int multicast_iface_index; // Default is -1 (use operating system default).
+};
+
+struct PingConfig {
+ std::string url; // As seen by the client.
+ std::string allow_origin; // Can be empty.