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#include <algorithm>
#include <iterator>
#include <experimental/filesystem>
#include <sdbusplus/server.hpp>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
#include "occ_finder.hpp"
#include "config.h"
namespace open_power
{
namespace occ
{
namespace finder
{
using namespace phosphor::logging;
constexpr auto toChar(size_t c)
{
constexpr auto map = "0123456789abcdef";
return map[c];
}
std::vector<std::string> get()
{
namespace fs = std::experimental::filesystem;
using Path = std::string;
using Service = std::string;
using Interface = std::string;
using Interfaces = std::vector<Interface>;
auto bus = sdbusplus::bus::new_default();
auto mapper =
bus.new_method_call(
"xyz.openbmc_project.ObjectMapper",
"/xyz/openbmc_project/object_mapper",
"xyz.openbmc_project.ObjectMapper",
"GetSubTree");
auto depth = 0;
Path path = CPU_SUBPATH;
Interfaces interfaces{INVENTORY_ITEM_INTERFACE};
mapper.append(path);
mapper.append(depth);
mapper.append(interfaces);
auto result = bus.call(mapper);
if (result.is_method_error())
{
// It's okay to not have inventory, for example at BMC standby
return {};
}
using MapperResponse = std::map<Path, std::map<Service, Interfaces>>;
MapperResponse response;
result.read(response);
if (response.empty())
{
// It's okay to not have inventory, for example at BMC standby
return {};
}
std::vector<std::string> occs;
for (auto count = 0; count < MAX_CPUS; ++count)
{
fs::path p(path);
p /= std::string(CPU_NAME) + toChar(count);
if (response.end() != response.find(p.string()))
{
occs.emplace_back(std::string(OCC_NAME) +
toChar(count));
}
}
return occs;
}
} // namespace finder
} // namespace occ
} // namespace open_power
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