aos/network/message_bridge_server.fbs

include "aos/configuration.fbs";

namespace aos.message_bridge;

// State of the connection.
enum State: ubyte {
  CONNECTED,
  DISCONNECTED,
}

// Statistics from a single connection to a client from this server.
table ServerConnection {
  // The node that we are connected to.
  node:Node (id: 0);

  // Health of this connection.  Connected or not?
  state:State (id: 1);

  // Number of packets that have been dropped (if known).
  dropped_packets:uint (id: 2);

  // Number of packets sent on all channels.
  sent_packets:uint (id: 3);

  // This is the measured monotonic offset for the connected node in
  // nanoseconds.  Add this to our monotonic time to get their
  // monotonic time.
  monotonic_offset:int64 (id: 4);

  // Boot UUID of the client.
  boot_uuid:string (id: 5);

  // Number of extra calls needed to receive a single message
  // (indicates congestion)
  partial_deliveries:uint (id: 6);

  // TODO(austin): Per channel counts?
}

// Statistics for all connections to all the clients.
table ServerStatistics {
  connections:[ServerConnection] (id: 0);

  // Count of timestamp send failures
  timestamp_send_failures:uint64 (id: 1);
}

root_type ServerStatistics;