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/*
* Copyright (C) 2018 The Android Open Source Project
*
* 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 <fstream>
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include "cooling_devices.h"
namespace android {
namespace hardware {
namespace thermal {
namespace V1_1 {
namespace implementation {
constexpr char kCoolingDeviceCurStateSuffix[] = "cur_state";
bool CoolingDevices::addCoolingDevice(
const std::string& cooling_device_name, const std::string& path) {
return cooling_device_name_to_path_map_.emplace(
cooling_device_name, path).second;
}
bool CoolingDevices::getCoolingDeviceState(
const std::string& cooling_device_name, int* data) const {
auto cooling_device_itr = cooling_device_name_to_path_map_.find(
cooling_device_name);
if (cooling_device_itr == cooling_device_name_to_path_map_.end()) {
return false;
}
std::string path = android::base::StringPrintf(
"%s/%s", cooling_device_itr->second.c_str(),
kCoolingDeviceCurStateSuffix);
std::string cooling_device_data;
android::base::ReadFileToString(path, &cooling_device_data);
cooling_device_data = android::base::Trim(cooling_device_data);
if (cooling_device_data.empty()) {
LOG(ERROR) << "Could not read "
<< getCoolingDevicePath(cooling_device_name);
return false;
}
*data = std::stoi(cooling_device_data);
return true;
}
std::string CoolingDevices::getCoolingDevicePath(
const std::string& cooling_device_name) const {
auto cooling_device_itr = cooling_device_name_to_path_map_.find(
cooling_device_name);
if (cooling_device_itr == cooling_device_name_to_path_map_.end()) {
return "";
}
return cooling_device_itr->second;
}
} // namespace implementation
} // namespace V1_1
} // namespace thermal
} // namespace hardware
} // namespace android
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