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 static constexpr char warningThreshInf[] = 22 "xyz.openbmc_project.Sensor.Threshold.Warning"; 23 static constexpr char availabilityIntf[] = 24 "xyz.openbmc_project.State.Decorator.Availability"; 25 DbusHelper(sdbusplus::bus_t & bus)26 explicit DbusHelper(sdbusplus::bus_t& bus) : _bus(bus) {} 27 DbusHelper() = delete; 28 ~DbusHelper() = default; 29 30 DbusHelper(const DbusHelper&) = delete; 31 DbusHelper& operator=(const DbusHelper&) = delete; 32 33 DbusHelper(DbusHelper&&) = default; 34 DbusHelper& operator=(DbusHelper&&) = delete; 35 36 std::string getService(const std::string& intf, 37 const std::string& path) override; 38 39 void getProperties(const std::string& service, const std::string& path, 40 SensorProperties* prop) override; 41 42 bool thresholdsAsserted(const std::string& service, 43 const std::string& path) override; 44 45 template <typename T> getProperty(const std::string & service,const std::string & path,const std::string & interface,const std::string & propertyName,T & prop)46 void getProperty(const std::string& service, const std::string& path, 47 const std::string& interface, 48 const std::string& propertyName, T& prop) 49 { 50 namespace log = phosphor::logging; 51 52 auto msg = _bus.new_method_call(service.c_str(), path.c_str(), 53 propertiesintf, "Get"); 54 55 msg.append(interface, propertyName); 56 57 std::variant<T> result; 58 try 59 { 60 auto valueResponseMsg = _bus.call(msg); 61 valueResponseMsg.read(result); 62 } 63 catch (const sdbusplus::exception_t& ex) 64 { 65 log::log<log::level::ERR>("Get Property Failed", 66 log::entry("WHAT=%s", ex.what())); 67 throw; 68 } 69 70 prop = std::get<T>(result); 71 } 72 73 private: 74 sdbusplus::bus_t& _bus; 75 }; 76 77 } // namespace pid_control 78