39     std::string prop_contents = GetProperty(kPersistProp, "");  in uploadVoltageAvg()  local
40     LOG(INFO) << kPersistProp << " property contents: " << prop_contents;  in uploadVoltageAvg()
41     if (prop_contents.size() == 0) {  // we don't have anything to upload  in uploadVoltageAvg()
55     for (const auto &item : android::base::Split(prop_contents, ",")) {  in uploadVoltageAvg()
72     std::string prop_contents;  in saveVoltageAvg()  local
79     prop_contents = GetProperty(kPersistProp, "");  in saveVoltageAvg()
82     if (prop_contents.size() > 0)  in saveVoltageAvg()
83         prop_contents += ",";  in saveVoltageAvg()
84     prop_contents += voltage_avg;  in saveVoltageAvg()
86     LOG(INFO) << "Saving \"" << prop_contents << "\" to " << kPersistProp;  in saveVoltageAvg()
88     return SetProperty(kPersistProp, prop_contents);  in saveVoltageAvg()