Function rig_check_backend

src/register.c:296–357

* rig_check_backend * check the backend declaring this model has been loaded * and if not loaded already, load it! * This permits seamless operation in rig_init. */ @cond Doxygen_Suppress

 */
//! @cond Doxygen_Suppress
int HAMLIB_API rig_check_backend(rig_model_t rig_model)
{
    const struct rig_caps *caps;
    int be_idx;
    int retval;
//    int i;

    /* already loaded ? */
    caps = rig_get_caps(rig_model);

    if (caps)
    {
        return RIG_OK;
    }

#if 0 // this stopped a 2nd rig_init call with a valid model to fail -- reversing

    // hmmm...no caps so did we already load the rigs?
    for (n = 0, i = 0; i < RIGLSTHASHSZ; i++)
    {
        if (rig_hash_table[i]) { ++n; }
    }


    if (n > 1)
    {
        rig_debug(RIG_DEBUG_ERR, "%s: rig model %u not found and rig count=%d\n",
                  __func__, rig_model, n);
        return -RIG_ENAVAIL;
    }

#endif

    be_idx = rig_lookup_backend(rig_model);

    /*
     * Never heard about this backend family!
     */
    if (be_idx == -1)
    {
        rig_debug(RIG_DEBUG_VERBOSE,
                  "rig_check_backend: unsupported backend %u for model %u\n",
                  RIG_BACKEND_NUM(rig_model),
                  rig_model);
        return -RIG_ENAVAIL;
    }

    // do we need to load the backend?
//    if (rig_backend_list[be_idx].be_init_all == 0)
    {
        retval = rig_load_backend(rig_backend_list[be_idx].be_name);
    }
#if 0
    else
    {
        retval = RIG_OK;
    }