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Merge pull request #2147
94717021
fix on_battery_power for linux (Ryan Mehta)
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commit
ce52d94cb7
1 changed files with 86 additions and 26 deletions
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@ -846,40 +846,100 @@ namespace cryptonote
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#elif defined(__linux__)
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// i've only tested on UBUNTU, these paths might be different on other systems
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// need to figure out a way to make this more flexible
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std::string power_supply_path = "";
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const std::string POWER_SUPPLY_STATUS_PATHS[] =
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{
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"/sys/class/power_supply/ACAD/online",
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"/sys/class/power_supply/AC/online",
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"/sys/class/power_supply/AC0/online",
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"/sys/class/power_supply/ADP0/online"
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};
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// Use the power_supply class http://lxr.linux.no/#linux+v4.10.1/Documentation/power/power_supply_class.txt
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std::string power_supply_class_path = "/sys/class/power_supply";
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for(const std::string& path : POWER_SUPPLY_STATUS_PATHS)
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boost::tribool on_battery = boost::logic::tribool(boost::logic::indeterminate);
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if (boost::filesystem::is_directory(power_supply_class_path))
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{
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if( epee::file_io_utils::is_file_exist(path) )
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const boost::filesystem::directory_iterator end_itr;
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for (boost::filesystem::directory_iterator iter(power_supply_class_path); iter != end_itr; ++iter)
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{
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power_supply_path = path;
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break;
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const boost::filesystem::path& power_supply_path = iter->path();
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if (boost::filesystem::is_directory(power_supply_path))
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{
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std::ifstream power_supply_present_stream((power_supply_path / "present").string());
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if (power_supply_present_stream.fail())
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{
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LOG_PRINT_L0("Unable to read from " << power_supply_path << " to check if power supply present");
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continue;
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}
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if (power_supply_present_stream.get() != '1')
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{
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LOG_PRINT_L4("Power supply not present at " << power_supply_path);
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continue;
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}
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boost::filesystem::path power_supply_type_path = power_supply_path / "type";
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if (boost::filesystem::is_regular_file(power_supply_type_path))
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{
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std::ifstream power_supply_type_stream(power_supply_type_path.string());
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if (power_supply_type_stream.fail())
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{
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LOG_PRINT_L0("Unable to read from " << power_supply_type_path << " to check power supply type");
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continue;
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}
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std::string power_supply_type;
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std::getline(power_supply_type_stream, power_supply_type);
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// If there is an AC adapter that's present and online we can break early
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if (boost::starts_with(power_supply_type, "Mains"))
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{
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boost::filesystem::path power_supply_online_path = power_supply_path / "online";
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if (boost::filesystem::is_regular_file(power_supply_online_path))
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{
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std::ifstream power_supply_online_stream(power_supply_online_path.string());
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if (power_supply_online_stream.fail())
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{
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LOG_PRINT_L0("Unable to read from " << power_supply_online_path << " to check ac power supply status");
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continue;
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}
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if (power_supply_online_stream.get() == '1')
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{
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return boost::logic::tribool(false);
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}
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}
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}
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else if (boost::starts_with(power_supply_type, "Battery") && boost::logic::indeterminate(on_battery))
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{
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boost::filesystem::path power_supply_status_path = power_supply_path / "status";
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if (boost::filesystem::is_regular_file(power_supply_status_path))
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{
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std::ifstream power_supply_status_stream(power_supply_status_path.string());
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if (power_supply_status_stream.fail())
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{
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LOG_PRINT_L0("Unable to read from " << power_supply_status_path << " to check battery power supply status");
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continue;
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}
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// Possible status are Charging, Full, Discharging, Not Charging, and Unknown
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// We are only need to handle negative states right now
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std::string power_supply_status;
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std::getline(power_supply_status_stream, power_supply_status);
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if (boost::starts_with(power_supply_status, "Charging") || boost::starts_with(power_supply_status, "Full"))
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{
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on_battery = boost::logic::tribool(false);
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}
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if (boost::starts_with(power_supply_status, "Discharging"))
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{
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on_battery = boost::logic::tribool(true);
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}
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}
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}
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}
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}
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}
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}
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if( power_supply_path.empty() )
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if (boost::logic::indeterminate(on_battery))
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{
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LOG_ERROR("Couldn't find battery/power status file, can't determine if plugged in!");
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return boost::logic::tribool(boost::logic::indeterminate);;
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LOG_ERROR("couldn't query power status from " << power_supply_class_path);
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}
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std::ifstream power_stream(power_supply_path);
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if( power_stream.fail() )
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{
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LOG_ERROR("failed to open '" << power_supply_path << "'");
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return boost::logic::tribool(boost::logic::indeterminate);;
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}
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return boost::logic::tribool( (power_stream.get() != '1') );
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return on_battery;
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#endif
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