Method executeFourLetterCommand

programs/keeper-client/KeeperClient.cpp:92–113

}

String KeeperClient::executeFourLetterCommand(const String & command)
{
    /// We need to create a new socket every time because ZooKeeper forcefully shuts down the connection after a four-letter-word command.
    Poco::Net::StreamSocket socket;
    socket.connect(Poco::Net::SocketAddress{zk_args.hosts[0]}, zk_args.connection_timeout_ms * 1000);

    socket.setReceiveTimeout(zk_args.operation_timeout_ms * 1000);
    socket.setSendTimeout(zk_args.operation_timeout_ms * 1000);
    socket.setNoDelay(true);

    ReadBufferFromPocoSocket in(socket);
    WriteBufferFromPocoSocket out(socket);

    out.write(command.data(), command.size());
    out.next();
    out.finalize();

    String result;
    readStringUntilEOF(result, in);
    in.next();
    return result;
}


/// `prefix` is the full input line up to the cursor position, as provided by replxx.