Add API to retrieve settings
Add API to retrieve all settings objects of interest to the time
manager.
Change-Id: I3d121c08d0156cf481a3468e6c7ca9b71f53d666
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
diff --git a/settings.cpp b/settings.cpp
new file mode 100644
index 0000000..650d03d
--- /dev/null
+++ b/settings.cpp
@@ -0,0 +1,92 @@
+#include <phosphor-logging/elog-errors.hpp>
+#include <phosphor-logging/log.hpp>
+#include "xyz/openbmc_project/Common/error.hpp"
+#include "settings.hpp"
+
+namespace settings
+{
+
+using namespace phosphor::logging;
+using namespace sdbusplus::xyz::openbmc_project::Common::Error;
+
+constexpr auto mapperService = "xyz.openbmc_project.ObjectMapper";
+constexpr auto mapperPath = "/xyz/openbmc_project/object_mapper";
+constexpr auto mapperIntf = "xyz.openbmc_project.ObjectMapper";
+
+Objects::Objects()
+{
+ auto bus = sdbusplus::bus::new_default();
+ std::vector<std::string> settingsIntfs =
+ {timeOwnerIntf, timeSyncIntf};
+ auto depth = 0;
+
+ auto mapperCall = bus.new_method_call(mapperService,
+ mapperPath,
+ mapperIntf,
+ "GetSubTree");
+ mapperCall.append(root);
+ mapperCall.append(depth);
+ mapperCall.append(settingsIntfs);
+ auto response = bus.call(mapperCall);
+ if (response.is_method_error())
+ {
+ log<level::ERR>("Error in mapper GetSubTree");
+ elog<InternalFailure>();
+ }
+
+ using Interfaces = std::vector<Interface>;
+ using MapperResponse = std::map<Path, std::map<Service, Interfaces>>;
+ MapperResponse result;
+ response.read(result);
+ if (result.empty())
+ {
+ log<level::ERR>("Invalid response from mapper");
+ elog<InternalFailure>();
+ }
+
+ for (const auto& iter : result)
+ {
+ const Path& path = iter.first;
+ const Interface& interface = iter.second.begin()->second.front();
+
+ if (timeOwnerIntf == interface)
+ {
+ timeOwner = path;
+ }
+ else if (timeSyncIntf == interface)
+ {
+ timeSyncMethod = path;
+ }
+ }
+}
+
+Service Objects::service(const Path& path, const Interface& interface) const
+{
+ auto bus = sdbusplus::bus::new_default();
+ using Interfaces = std::vector<Interface>;
+ auto mapperCall = bus.new_method_call(mapperService,
+ mapperPath,
+ mapperIntf,
+ "GetObject");
+ mapperCall.append(path);
+ mapperCall.append(Interfaces({interface}));
+
+ auto response = bus.call(mapperCall);
+ if (response.is_method_error())
+ {
+ log<level::ERR>("Error in mapper GetObject");
+ elog<InternalFailure>();
+ }
+
+ std::map<Service, Interfaces> result;
+ response.read(result);
+ if (result.empty())
+ {
+ log<level::ERR>("Invalid response from mapper");
+ elog<InternalFailure>();
+ }
+
+ return result.begin()->first;
+}
+
+} // namespace settings