add basic support for Android Thermal Manager

libs/utils/src/android/ThermalManager.cpp

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2022 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 <utils/android/ThermalManager.h>
+
+#include <android/Thermal.h>
+
+#include <utility>
+
+namespace utils {
+
+ThermalManager::ThermalManager() {
+    if (__builtin_available(android 30, *)) {
+        mThermalManager = AThermal_acquireManager();
+    }
+}
+
+ThermalManager::~ThermalManager() {
+    if (__builtin_available(android 30, *)) {
+        AThermal_releaseManager(mThermalManager);
+    }
+}
+
+ThermalManager::ThermalManager(ThermalManager&& rhs) noexcept
+        : mThermalManager(rhs.mThermalManager) {
+    rhs.mThermalManager = nullptr;
+}
+
+ThermalManager& ThermalManager::operator=(ThermalManager&& rhs) noexcept {
+    std::swap(mThermalManager, rhs.mThermalManager);
+    return *this;
+}
+
+ThermalManager::ThermalStatus ThermalManager::getCurrentThermalStatus() const noexcept {
+    if (__builtin_available(android 30, *)) {
+        return (ThermalManager::ThermalStatus)AThermal_getCurrentThermalStatus(mThermalManager);
+    } else {
+        return ThermalStatus::NONE;
+    }
+}
+
+} // namespace utils