cold-redundancy/cold_redundancy.cpp - openbmc/phosphor-power - Gitiles

 /*
 // Copyright (c) 2019 Intel Corporation
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */

 #include "types.hpp"

 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/algorithm/string/replace.hpp>
 #include <boost/asio/post.hpp>
 #include <boost/container/flat_set.hpp>
 #include <cold_redundancy.hpp>
 #include <phosphor-logging/elog-errors.hpp>
 #include <sdbusplus/asio/connection.hpp>
 #include <sdbusplus/asio/object_server.hpp>
 #include <sdbusplus/bus/match.hpp>

 #include <array>
 #include <filesystem>
 #include <fstream>
 #include <iostream>
 #include <regex>

 namespace
 {
 constexpr const std::array<const char*, 1> psuInterfaceTypes = {
     "xyz.openbmc_project.Configuration.pmbus"};
 std::string inventoryPath = std::string(INVENTORY_OBJ_PATH) + "/system";
 const constexpr char* eventPath = "/xyz/openbmc_project/State/Decorator";
 std::vector<std::unique_ptr<PowerSupply>> powerSupplies;
 } // namespace

 ColdRedundancy::ColdRedundancy(
     boost::asio::io_service& io, sdbusplus::asio::object_server& objectServer,
     std::shared_ptr<sdbusplus::asio::connection>& systemBus) :
     filterTimer(io), systemBus(systemBus)
 {
     post(io,
          [this, &io, &objectServer, &systemBus]() { createPSU(systemBus); });
     std::function<void(sdbusplus::message_t&)> eventHandler =
         [this, &io, &objectServer, &systemBus](sdbusplus::message_t& message) {
             if (message.is_method_error())
             {
                 std::cerr << "callback method error\n";
                 return;
             }
             filterTimer.expires_after(std::chrono::seconds(1));
             filterTimer.async_wait([this, &io, &objectServer, &systemBus](
                                        const boost::system::error_code& ec) {
                 if (ec == boost::asio::error::operation_aborted)
                 {
                     return;
                 }
                 else if (ec)
                 {
                     std::cerr << "timer error\n";
                 }
                 createPSU(systemBus);
             });
         };

     std::function<void(sdbusplus::message_t&)> eventCollect =
         [&](sdbusplus::message_t& message) {
             std::string objectName;
             boost::container::flat_map<std::string, std::variant<bool>> values;
             std::string path = message.get_path();
             std::size_t slantingPos = path.find_last_of("/\\");
             if ((slantingPos == std::string::npos) ||
                 ((slantingPos + 1) >= path.size()))
             {
                 std::cerr << "Unable to get PSU state name from path\n";
                 return;
             }
             std::string statePSUName = path.substr(slantingPos + 1);

             std::size_t hypenPos = statePSUName.find("_");
             if (hypenPos == std::string::npos)
             {
                 std::cerr << "Unable to get PSU name from PSU path\n";
                 return;
             }
             std::string psuName = statePSUName.substr(0, hypenPos);

             try
             {
                 message.read(objectName, values);
             }
             catch (const sdbusplus::exception_t& e)
             {
                 std::cerr << "Failed to read message from PSU Event\n";
                 return;
             }

             for (auto& psu : powerSupplies)
             {
                 if (psu->name != psuName)
                 {
                     continue;
                 }

                 std::string psuEventName = "functional";
                 auto findEvent = values.find(psuEventName);
                 if (findEvent != values.end())
                 {
                     bool* functional = std::get_if<bool>(&(findEvent->second));
                     if (functional == nullptr)
                     {
                         std::cerr << "Unable to get valid functional status\n";
                         continue;
                     }
                     if (*functional)
                     {
                         psu->state = CR::PSUState::normal;
                     }
                     else
                     {
                         psu->state = CR::PSUState::acLost;
                     }
                 }
             }
         };

     using namespace sdbusplus::bus::match::rules;
     for (const char* type : psuInterfaceTypes)
     {
         auto match = std::make_unique<sdbusplus::bus::match_t>(
             static_cast<sdbusplus::bus_t&>(*systemBus),
             type::signal() + member("PropertiesChanged") +
                 path_namespace(inventoryPath) + arg0namespace(type),
             eventHandler);
         matches.emplace_back(std::move(match));
     }

     for (const char* eventType : psuEventInterface)
     {
         auto eventMatch = std::make_unique<sdbusplus::bus::match_t>(
             static_cast<sdbusplus::bus_t&>(*systemBus),
             type::signal() + member("PropertiesChanged") +
                 path_namespace(eventPath) + arg0namespace(eventType),
             eventCollect);
         matches.emplace_back(std::move(eventMatch));
     }
 }

 static const constexpr int psuDepth = 3;
 // Check PSU information from entity-manager D-Bus interface and use the bus
 // address to create PSU Class for cold redundancy.
 void ColdRedundancy::createPSU(
     std::shared_ptr<sdbusplus::asio::connection>& conn)
 {
     numberOfPSU = 0;
     powerSupplies.clear();

     // call mapper to get matched obj paths
     conn->async_method_call(
         [this, &conn](const boost::system::error_code ec,
                       CR::GetSubTreeType subtree) {
             if (ec)
             {
                 std::cerr << "Exception happened when communicating to "
                              "ObjectMapper\n";
                 return;
             }
             for (const auto& object : subtree)
             {
                 std::string pathName = object.first;
                 for (const auto& serviceIface : object.second)
                 {
                     std::string serviceName = serviceIface.first;
                     for (const auto& interface : serviceIface.second)
                     {
                         // only get property of matched interface
                         bool isIfaceMatched = false;
                         for (const auto& type : psuInterfaceTypes)
                         {
                             if (type == interface)
                             {
                                 isIfaceMatched = true;
                                 break;
                             }
                         }
                         if (!isIfaceMatched)
                             continue;

                         conn->async_method_call(
                             [this, &conn,
                              interface](const boost::system::error_code ec,
                                         CR::PropertyMapType propMap) {
                                 if (ec)
                                 {
                                     std::cerr
                                         << "Exception happened when get all "
                                            "properties\n";
                                     return;
                                 }

                                 auto configName =
                                     std::get_if<std::string>(&propMap["Name"]);
                                 if (configName == nullptr)
                                 {
                                     std::cerr << "error finding necessary "
                                                  "entry in configuration\n";
                                     return;
                                 }

                                 auto configBus =
                                     std::get_if<uint64_t>(&propMap["Bus"]);
                                 auto configAddress =
                                     std::get_if<uint64_t>(&propMap["Address"]);

                                 if (configBus == nullptr ||
                                     configAddress == nullptr)
                                 {
                                     std::cerr << "error finding necessary "
                                                  "entry in configuration\n";
                                     return;
                                 }
                                 for (auto& psu : powerSupplies)
                                 {
                                     if ((static_cast<uint8_t>(*configBus) ==
                                          psu->bus) &&
                                         (static_cast<uint8_t>(*configAddress) ==
                                          psu->address))
                                     {
                                         return;
                                     }
                                 }

                                 uint8_t order = 0;

                                 powerSupplies.emplace_back(
                                     std::make_unique<PowerSupply>(
                                         *configName,
                                         static_cast<uint8_t>(*configBus),
                                         static_cast<uint8_t>(*configAddress),
                                         order, conn));

                                 numberOfPSU++;
                                 std::vector<uint8_t> orders = {};
                                 for (auto& psu : powerSupplies)
                                 {
                                     orders.push_back(psu->order);
                                 }
                             },
                             serviceName.c_str(), pathName.c_str(),
                             "org.freedesktop.DBus.Properties", "GetAll",
                             interface);
                     }
                 }
             }
         },
         "xyz.openbmc_project.ObjectMapper",
         "/xyz/openbmc_project/object_mapper",
         "xyz.openbmc_project.ObjectMapper", "GetSubTree",
         "/xyz/openbmc_project/inventory/system", psuDepth, psuInterfaceTypes);
 }

 PowerSupply::PowerSupply(
     std::string& name, uint8_t bus, uint8_t address, uint8_t order,
     const std::shared_ptr<sdbusplus::asio::connection>& dbusConnection) :
     name(name), bus(bus), address(address), order(order)
 {
     CR::getPSUEvent(dbusConnection, name, state);
 }
	/*
	// Copyright (c) 2019 Intel Corporation
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.
	*/

	#include "types.hpp"

	#include <boost/algorithm/string/predicate.hpp>
	#include <boost/algorithm/string/replace.hpp>
	#include <boost/asio/post.hpp>
	#include <boost/container/flat_set.hpp>
	#include <cold_redundancy.hpp>
	#include <phosphor-logging/elog-errors.hpp>
	#include <sdbusplus/asio/connection.hpp>
	#include <sdbusplus/asio/object_server.hpp>
	#include <sdbusplus/bus/match.hpp>

	#include <array>
	#include <filesystem>
	#include <fstream>
	#include <iostream>
	#include <regex>

	namespace
	{
	constexpr const std::array<const char*, 1> psuInterfaceTypes = {
	"xyz.openbmc_project.Configuration.pmbus"};
	std::string inventoryPath = std::string(INVENTORY_OBJ_PATH) + "/system";
	const constexpr char* eventPath = "/xyz/openbmc_project/State/Decorator";
	std::vector<std::unique_ptr<PowerSupply>> powerSupplies;
	} // namespace

	ColdRedundancy::ColdRedundancy(
	boost::asio::io_service& io, sdbusplus::asio::object_server& objectServer,
	std::shared_ptr<sdbusplus::asio::connection>& systemBus) :
	filterTimer(io), systemBus(systemBus)
	{
	post(io,
	[this, &io, &objectServer, &systemBus]() { createPSU(systemBus); });
	std::function<void(sdbusplus::message_t&)> eventHandler =
	[this, &io, &objectServer, &systemBus](sdbusplus::message_t& message) {
	if (message.is_method_error())
	{
	std::cerr << "callback method error\n";
	return;
	}
	filterTimer.expires_after(std::chrono::seconds(1));
	filterTimer.async_wait([this, &io, &objectServer, &systemBus](
	const boost::system::error_code& ec) {
	if (ec == boost::asio::error::operation_aborted)
	{
	return;
	}
	else if (ec)
	{
	std::cerr << "timer error\n";
	}
	createPSU(systemBus);
	});
	};

	std::function<void(sdbusplus::message_t&)> eventCollect =
	[&](sdbusplus::message_t& message) {
	std::string objectName;
	boost::container::flat_map<std::string, std::variant<bool>> values;
	std::string path = message.get_path();
	std::size_t slantingPos = path.find_last_of("/\\");
	if ((slantingPos == std::string::npos) \|\|
	((slantingPos + 1) >= path.size()))
	{
	std::cerr << "Unable to get PSU state name from path\n";
	return;
	}
	std::string statePSUName = path.substr(slantingPos + 1);

	std::size_t hypenPos = statePSUName.find("_");
	if (hypenPos == std::string::npos)
	{
	std::cerr << "Unable to get PSU name from PSU path\n";
	return;
	}
	std::string psuName = statePSUName.substr(0, hypenPos);

	try
	{
	message.read(objectName, values);
	}
	catch (const sdbusplus::exception_t& e)
	{
	std::cerr << "Failed to read message from PSU Event\n";
	return;
	}

	for (auto& psu : powerSupplies)
	{
	if (psu->name != psuName)
	{
	continue;
	}

	std::string psuEventName = "functional";
	auto findEvent = values.find(psuEventName);
	if (findEvent != values.end())
	{
	bool* functional = std::get_if<bool>(&(findEvent->second));
	if (functional == nullptr)
	{
	std::cerr << "Unable to get valid functional status\n";
	continue;
	}
	if (*functional)
	{
	psu->state = CR::PSUState::normal;
	}
	else
	{
	psu->state = CR::PSUState::acLost;
	}
	}
	}
	};

	using namespace sdbusplus::bus::match::rules;
	for (const char* type : psuInterfaceTypes)
	{
	auto match = std::make_unique<sdbusplus::bus::match_t>(
	static_cast<sdbusplus::bus_t&>(*systemBus),
	type::signal() + member("PropertiesChanged") +
	path_namespace(inventoryPath) + arg0namespace(type),
	eventHandler);
	matches.emplace_back(std::move(match));
	}

	for (const char* eventType : psuEventInterface)
	{
	auto eventMatch = std::make_unique<sdbusplus::bus::match_t>(
	static_cast<sdbusplus::bus_t&>(*systemBus),
	type::signal() + member("PropertiesChanged") +
	path_namespace(eventPath) + arg0namespace(eventType),
	eventCollect);
	matches.emplace_back(std::move(eventMatch));
	}
	}

	static const constexpr int psuDepth = 3;
	// Check PSU information from entity-manager D-Bus interface and use the bus
	// address to create PSU Class for cold redundancy.
	void ColdRedundancy::createPSU(
	std::shared_ptr<sdbusplus::asio::connection>& conn)
	{
	numberOfPSU = 0;
	powerSupplies.clear();

	// call mapper to get matched obj paths
	conn->async_method_call(
	[this, &conn](const boost::system::error_code ec,
	CR::GetSubTreeType subtree) {
	if (ec)
	{
	std::cerr << "Exception happened when communicating to "
	"ObjectMapper\n";
	return;
	}
	for (const auto& object : subtree)
	{
	std::string pathName = object.first;
	for (const auto& serviceIface : object.second)
	{
	std::string serviceName = serviceIface.first;
	for (const auto& interface : serviceIface.second)
	{
	// only get property of matched interface
	bool isIfaceMatched = false;
	for (const auto& type : psuInterfaceTypes)
	{
	if (type == interface)
	{
	isIfaceMatched = true;
	break;
	}
	}
	if (!isIfaceMatched)
	continue;

	conn->async_method_call(
	[this, &conn,
	interface](const boost::system::error_code ec,
	CR::PropertyMapType propMap) {
	if (ec)
	{
	std::cerr
	<< "Exception happened when get all "
	"properties\n";
	return;
	}

	auto configName =
	std::get_if<std::string>(&propMap["Name"]);
	if (configName == nullptr)
	{
	std::cerr << "error finding necessary "
	"entry in configuration\n";
	return;
	}

	auto configBus =
	std::get_if<uint64_t>(&propMap["Bus"]);
	auto configAddress =
	std::get_if<uint64_t>(&propMap["Address"]);

	if (configBus == nullptr \|\|
	configAddress == nullptr)
	{
	std::cerr << "error finding necessary "
	"entry in configuration\n";
	return;
	}
	for (auto& psu : powerSupplies)
	{
	if ((static_cast<uint8_t>(*configBus) ==
	psu->bus) &&
	(static_cast<uint8_t>(*configAddress) ==
	psu->address))
	{
	return;
	}
	}

	uint8_t order = 0;

	powerSupplies.emplace_back(
	std::make_unique<PowerSupply>(
	*configName,
	static_cast<uint8_t>(*configBus),
	static_cast<uint8_t>(*configAddress),
	order, conn));

	numberOfPSU++;
	std::vector<uint8_t> orders = {};
	for (auto& psu : powerSupplies)
	{
	orders.push_back(psu->order);
	}
	},
	serviceName.c_str(), pathName.c_str(),
	"org.freedesktop.DBus.Properties", "GetAll",
	interface);
	}
	}
	}
	},
	"xyz.openbmc_project.ObjectMapper",
	"/xyz/openbmc_project/object_mapper",
	"xyz.openbmc_project.ObjectMapper", "GetSubTree",
	"/xyz/openbmc_project/inventory/system", psuDepth, psuInterfaceTypes);
	}

	PowerSupply::PowerSupply(
	std::string& name, uint8_t bus, uint8_t address, uint8_t order,
	const std::shared_ptr<sdbusplus::asio::connection>& dbusConnection) :
	name(name), bus(bus), address(address), order(order)
	{
	CR::getPSUEvent(dbusConnection, name, state);
	}