Function write_block

src/iofunc.c:1065–1169

 */

int HAMLIB_API write_block(hamlib_port_t *p, const unsigned char *txbuffer,
                           size_t count)
{
    int ret;

    if (p->fd < 0)
    {
        rig_debug(RIG_DEBUG_ERR, "%s: port not open\n", __func__);
        return (-RIG_EIO);
    }

#ifdef WANT_NON_ACTIVE_POST_WRITE_DELAY

    if (p->post_write_date.tv_sec != 0)
    {
        signed int date_delay;    /* in us */
        struct timeval tv;

        /* FIXME in Y2038 ... */
        gettimeofday(&tv, NULL);
        date_delay = p->post_write_delay * 1000 -
                     ((tv.tv_sec - p->post_write_date.tv_sec) * 1000000 +
                      (tv.tv_usec - p->post_write_date.tv_usec));

        if (date_delay > 0)
        {
            /*
             * optional delay after last write
             */
            hl_sleep(date_delay);
        }

        p->post_write_date.tv_sec = 0;
    }

#endif

    if (p->write_delay > 0)
    {
        int i;

        for (i = 0; i < count; i++)
        {
            ret = port_write(p, txbuffer + i, 1);

            if (ret != 1)
            {
                rig_debug(RIG_DEBUG_ERR,
                          "%s():%d failed %d - %s\n",
                          __func__,
                          __LINE__,
                          ret,
                          strerror(errno));

                return -RIG_EIO;
            }

            if (p->write_delay > 0) { hl_usleep(p->write_delay * 1000); }