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Merge pull request #2147

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94717021 fix on_battery_power for linux (Ryan Mehta)
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Riccardo Spagni 2017-08-07 14:47:42 +02:00
commit ce52d94cb7
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1 changed files with 86 additions and 26 deletions
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112
src/cryptonote_basic/miner.cpp
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@ -846,40 +846,100 @@ namespace cryptonote
#elif defined(__linux__)
// i've only tested on UBUNTU, these paths might be different on other systems
// need to figure out a way to make this more flexible
std::string power_supply_path = "";
const std::string POWER_SUPPLY_STATUS_PATHS[] =
{
"/sys/class/power_supply/ACAD/online",
"/sys/class/power_supply/AC/online",
"/sys/class/power_supply/AC0/online",
"/sys/class/power_supply/ADP0/online"
};
// Use the power_supply class http://lxr.linux.no/#linux+v4.10.1/Documentation/power/power_supply_class.txt
std::string power_supply_class_path = "/sys/class/power_supply";
for(const std::string& path : POWER_SUPPLY_STATUS_PATHS)
boost::tribool on_battery = boost::logic::tribool(boost::logic::indeterminate);
if (boost::filesystem::is_directory(power_supply_class_path))
{
if( epee::file_io_utils::is_file_exist(path) )
const boost::filesystem::directory_iterator end_itr;
for (boost::filesystem::directory_iterator iter(power_supply_class_path); iter != end_itr; ++iter)
{
power_supply_path = path;
break;
const boost::filesystem::path& power_supply_path = iter->path();
if (boost::filesystem::is_directory(power_supply_path))
{
std::ifstream power_supply_present_stream((power_supply_path / "present").string());
if (power_supply_present_stream.fail())
{
LOG_PRINT_L0("Unable to read from " << power_supply_path << " to check if power supply present");
continue;
}
if (power_supply_present_stream.get() != '1')
{
LOG_PRINT_L4("Power supply not present at " << power_supply_path);
continue;
}
boost::filesystem::path power_supply_type_path = power_supply_path / "type";
if (boost::filesystem::is_regular_file(power_supply_type_path))
{
std::ifstream power_supply_type_stream(power_supply_type_path.string());
if (power_supply_type_stream.fail())
{
LOG_PRINT_L0("Unable to read from " << power_supply_type_path << " to check power supply type");
continue;
}
std::string power_supply_type;
std::getline(power_supply_type_stream, power_supply_type);
// If there is an AC adapter that's present and online we can break early
if (boost::starts_with(power_supply_type, "Mains"))
{
boost::filesystem::path power_supply_online_path = power_supply_path / "online";
if (boost::filesystem::is_regular_file(power_supply_online_path))
{
std::ifstream power_supply_online_stream(power_supply_online_path.string());
if (power_supply_online_stream.fail())
{
LOG_PRINT_L0("Unable to read from " << power_supply_online_path << " to check ac power supply status");
continue;
}
if (power_supply_online_stream.get() == '1')
{
return boost::logic::tribool(false);
}
}
}
else if (boost::starts_with(power_supply_type, "Battery") && boost::logic::indeterminate(on_battery))
{
boost::filesystem::path power_supply_status_path = power_supply_path / "status";
if (boost::filesystem::is_regular_file(power_supply_status_path))
{
std::ifstream power_supply_status_stream(power_supply_status_path.string());
if (power_supply_status_stream.fail())
{
LOG_PRINT_L0("Unable to read from " << power_supply_status_path << " to check battery power supply status");
continue;
}
// Possible status are Charging, Full, Discharging, Not Charging, and Unknown
// We are only need to handle negative states right now
std::string power_supply_status;
std::getline(power_supply_status_stream, power_supply_status);
if (boost::starts_with(power_supply_status, "Charging") || boost::starts_with(power_supply_status, "Full"))
{
on_battery = boost::logic::tribool(false);
}
if (boost::starts_with(power_supply_status, "Discharging"))
{
on_battery = boost::logic::tribool(true);
}
}
}
}
}
}
}
if( power_supply_path.empty() )
if (boost::logic::indeterminate(on_battery))
{
LOG_ERROR("Couldn't find battery/power status file, can't determine if plugged in!");
return boost::logic::tribool(boost::logic::indeterminate);;
LOG_ERROR("couldn't query power status from " << power_supply_class_path);
}
std::ifstream power_stream(power_supply_path);
if( power_stream.fail() )
{
LOG_ERROR("failed to open '" << power_supply_path << "'");
return boost::logic::tribool(boost::logic::indeterminate);;
}
return boost::logic::tribool( (power_stream.get() != '1') );
return on_battery;
#endif