Function port_read_sync_data_error_code

src/iofunc.c:431–475

extern int is_uh_radio_fd(int fd);

static int port_read_sync_data_error_code(hamlib_port_t *p)
{
    ssize_t total_bytes_read = 0;
    signed char data;
    int result;

    do
    {
        // Wait for data using a zero-length read
        result = async_pipe_read(p->sync_data_error_pipe, &data, 0, p->timeout);

        if (result < 0)
        {
            if (result == -RIG_ETIMEOUT)
            {
                if (total_bytes_read > 0)
                {
                    return data;
                }
            }

            return result;
        }

        result = async_pipe_read(p->sync_data_error_pipe, &data, 1, p->timeout);

        if (result < 0)
        {
            if (result == -RIG_ETIMEOUT)
            {
                if (total_bytes_read > 0)
                {
                    return data;
                }
            }

            return result;
        }

        total_bytes_read += result;
    }
    while (result > 0);

    return data;
}

static int port_read_sync_data(hamlib_port_t *p, void *buf, size_t count)
{