Example: lrs_get_last_received_buffer_size
In the following example, we check if data was received on a socket using lrs_get_last_received_buffer_size. If not we send an error message.
lrs_receive("socket2", "buf20", LrsLastArg);
if (lrs_get_last_received_buffer_size("socket2") < 1) {
lr_error_message("No data received on socket2");
return -1
}