1 #pragma once 2 3 #include "dbushelper_interface.hpp" 4 5 #include <phosphor-logging/log.hpp> 6 #include <sdbusplus/bus.hpp> 7 8 #include <string> 9 #include <variant> 10 11 namespace pid_control 12 { 13 14 class DbusHelper : public DbusHelperInterface 15 { 16 public: 17 static constexpr char sensorintf[] = "xyz.openbmc_project.Sensor.Value"; 18 static constexpr char propertiesintf[] = "org.freedesktop.DBus.Properties"; 19 static constexpr char criticalThreshInf[] = 20 "xyz.openbmc_project.Sensor.Threshold.Critical"; 21 22 explicit DbusHelper(sdbusplus::bus::bus bus) : _bus(std::move(bus)) 23 {} 24 ~DbusHelper() = default; 25 26 DbusHelper(const DbusHelper&) = delete; 27 DbusHelper& operator=(const DbusHelper&) = delete; 28 29 DbusHelper(DbusHelper&&) = default; 30 DbusHelper& operator=(DbusHelper&&) = default; 31 32 std::string getService(sdbusplus::bus::bus& bus, const std::string& intf, 33 const std::string& path) override; 34 35 void getProperties(sdbusplus::bus::bus& bus, const std::string& service, 36 const std::string& path, 37 struct SensorProperties* prop) override; 38 39 bool thresholdsAsserted(sdbusplus::bus::bus& bus, 40 const std::string& service, 41 const std::string& path) override; 42 43 template <typename T> 44 void getProperty(sdbusplus::bus::bus& bus, const std::string& service, 45 const std::string& path, const std::string& interface, 46 const std::string& propertyName, T& prop) 47 { 48 namespace log = phosphor::logging; 49 50 auto msg = _bus.new_method_call(service.c_str(), path.c_str(), 51 propertiesintf, "Get"); 52 53 msg.append(interface, propertyName); 54 55 std::variant<T> result; 56 try 57 { 58 auto valueResponseMsg = _bus.call(msg); 59 valueResponseMsg.read(result); 60 } 61 catch (const sdbusplus::exception::SdBusError& ex) 62 { 63 log::log<log::level::ERR>("Get Property Failed", 64 log::entry("WHAT=%s", ex.what())); 65 throw; 66 } 67 68 prop = std::get<T>(result); 69 } 70 71 private: 72 sdbusplus::bus::bus _bus; 73 }; 74 75 } // namespace pid_control 76