Continuous TX\RX.

[fzybot]

Hardware: Ubuntu 22.04, Adalm Pluto SDR <-> USB cable, libiio v1.
Is there any tip on how to be sure that we do not lose any samples?
For instance:

    while (1)
    {
        rxblock = iio_stream_get_next_block(rxstream);
        txblock = iio_stream_get_next_block(txstream);
        .....
        .....
     }

Can I be confident that next block will be a real samples in time? And we are not loosing any samples?
I have tried to transmit just a rectangle impulse on TX block, and receive it on RX block. Some times I'm getting rectangle impulse cut in half, sometimes complete impulse....