Method export_start

DSView/pv/storesession.cpp:796–852

export as csv file

//export as csv file
bool StoreSession::export_start()
{
    std::set<int> type_set;
    for(auto s : _session->get_signals()) {
        int _tp = s->get_type();
        type_set.insert(_tp);
    }

    if (type_set.size() > 1) {
        _error = L_S(STR_PAGE_DLG, S_ID(IDS_MSG_STORESESS_EXPORTSTART_ERROR1), 
                "DSView does not currently support\nfile export for multiple data types.");
        return false;
    } else if (type_set.size() == 0) {
        _error = L_S(STR_PAGE_DLG, S_ID(IDS_MSG_STORESESS_EXPORTSTART_ERROR2), "No data to save.");
        return false;
    }

    const auto snapshot = _session->get_snapshot(*type_set.begin());
    assert(snapshot);
    // Check we have data
    if (snapshot->empty()) {
        _error = L_S(STR_PAGE_DLG, S_ID(IDS_MSG_STORESESS_EXPORTSTART_ERROR2), "No data to save.");
        return false;
    }

    if (_file_name == ""){
        _error = L_S(STR_PAGE_DLG, S_ID(IDS_MSG_STORESESS_EXPORTSTART_ERROR3), "No set file name.");
        return false;
    }

    const struct sr_output_module **supportedModules = sr_output_list();
    while (*supportedModules)
    {
        if (*supportedModules == NULL)
            break;
        if (!strcmp((*supportedModules)->id, _suffix.toUtf8().data()))
        {
            _outModule = *supportedModules;
            break;
        }
        supportedModules++;
    }

    if (_outModule == NULL)
    {
        _error = L_S(STR_PAGE_DLG, S_ID(IDS_MSG_STORESESS_EXPORTSTART_ERROR4), "Invalid export format.");
    }
    else
    {
        if (_thread.joinable()) _thread.join();
        _thread = std::thread(&StoreSession::export_proc, this, snapshot);
        return !_has_error;
    }

    _error.clear();
    return false;
}