blob: f79bf4fbfd06f66bc14beed772098e252a8ea146 [file] [log] [blame]
#include "dbus/util.hpp"
#include <iostream>
#include <set>
using Property = std::string;
using Value = sdbusplus::message::variant<int64_t, double, std::string>;
using PropertyMap = std::map<Property, Value>;
/* TODO(venture): Basically all phosphor apps need this, maybe it should be a
* part of sdbusplus. There is an old version in libmapper.
*/
std::string DbusHelper::GetService(sdbusplus::bus::bus& bus,
const std::string& intf,
const std::string& path)
{
auto mapper =
bus.new_method_call("xyz.openbmc_project.ObjectMapper",
"/xyz/openbmc_project/object_mapper",
"xyz.openbmc_project.ObjectMapper", "GetObject");
mapper.append(path);
mapper.append(std::vector<std::string>({intf}));
auto responseMsg = bus.call(mapper);
if (responseMsg.is_method_error())
{
throw std::runtime_error("ObjectMapper Call Failure");
}
std::map<std::string, std::vector<std::string>> response;
responseMsg.read(response);
if (response.begin() == response.end())
{
throw std::runtime_error("Unable to find Object: " + path);
}
return response.begin()->first;
}
void DbusHelper::GetProperties(sdbusplus::bus::bus& bus,
const std::string& service,
const std::string& path,
struct SensorProperties* prop)
{
auto pimMsg = bus.new_method_call(service.c_str(), path.c_str(),
propertiesintf.c_str(), "GetAll");
pimMsg.append(sensorintf);
auto valueResponseMsg = bus.call(pimMsg);
if (valueResponseMsg.is_method_error())
{
std::cerr << "Error in value call\n";
throw std::runtime_error("ERROR in value call.");
}
// The PropertyMap returned will look like this because it's always
// reading a Sensor.Value interface.
// a{sv} 3:
// "Value" x 24875
// "Unit" s "xyz.openbmc_project.Sensor.Value.Unit.DegreesC"
// "Scale" x -3
PropertyMap propMap;
valueResponseMsg.read(propMap);
// If no error was set, the values should all be there.
auto findUnit = propMap.find("Unit");
if (findUnit != propMap.end())
{
prop->unit =
sdbusplus::message::variant_ns::get<std::string>(findUnit->second);
}
auto findScale = propMap.find("Scale");
if (findScale != propMap.end())
{
prop->scale =
sdbusplus::message::variant_ns::get<int64_t>(findScale->second);
}
else
{
prop->scale = 0;
}
prop->value =
mapbox::util::apply_visitor(VariantToDoubleVisitor(), propMap["Value"]);
return;
}
std::string GetSensorPath(const std::string& type, const std::string& id)
{
std::string layer = type;
if (type == "fan")
{
layer = "fan_tach";
}
else if (type == "temp")
{
layer = "temperature";
}
else
{
layer = "unknown"; // TODO(venture): Need to handle.
}
return std::string("/xyz/openbmc_project/sensors/" + layer + "/" + id);
}
std::string GetMatch(const std::string& type, const std::string& id)
{
return std::string("type='signal',"
"interface='org.freedesktop.DBus.Properties',"
"member='PropertiesChanged',"
"path='" +
GetSensorPath(type, id) + "'");
}
bool ValidType(const std::string& type)
{
static std::set<std::string> valid = {"fan", "temp"};
return (valid.find(type) != valid.end());
}