#pragma once #include #include #include namespace witherspoon { namespace power { namespace util { constexpr auto PROPERTY_INTF = "org.freedesktop.DBus.Properties"; /** * @brief Get the service name from the mapper for the * interface and path passed in. * * @param[in] path - the D-Bus path name * @param[in] interface - the D-Bus interface name * @param[in] bus - the D-Bus object * * @return The service name */ std::string getService(const std::string& path, const std::string& interface, sdbusplus::bus::bus& bus); /** * @brief Read a D-Bus property * * @param[in] interface - the interface the property is on * @param[in] propertName - the name of the property * @param[in] path - the D-Bus path * @param[in] service - the D-Bus service * @param[in] bus - the D-Bus object * @param[out] value - filled in with the property value */ template void getProperty(const std::string& interface, const std::string& propertyName, const std::string& path, const std::string& service, sdbusplus::bus::bus& bus, T& value) { sdbusplus::message::variant property; auto method = bus.new_method_call(service.c_str(), path.c_str(), PROPERTY_INTF, "Get"); method.append(interface, propertyName); auto reply = bus.call(method); if (reply.is_method_error()) { using namespace phosphor::logging; log("Error in property get call", entry("PATH=%s", path.c_str()), entry("PROPERTY=%s", propertyName.c_str())); // // TODO openbmc/openbmc#851 - Once available, throw returned error throw std::runtime_error("Error in property get call"); } reply.read(property); value = sdbusplus::message::variant_ns::get(property); } } } }