thermal/service.cpp

/*
 * 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 <android-base/logging.h>
#include <hidl/HidlTransportSupport.h>
#include "Thermal.h"

constexpr std::string_view kThermalLogTag("pixel-thermal");

using ::android::OK;
using ::android::status_t;

// libhwbinder:
using ::android::hardware::configureRpcThreadpool;
using ::android::hardware::joinRpcThreadpool;

// Generated HIDL files:
using ::android::hardware::thermal::V2_0::IThermal;
using ::android::hardware::thermal::V2_0::implementation::Thermal;

static int shutdown() {
    LOG(ERROR) << "Pixel Thermal HAL Service is shutting down.";
    return 1;
}

int main(int /* argc */, char ** /* argv */) {
    android::base::SetDefaultTag(kThermalLogTag.data());
    status_t status;
    android::sp<IThermal> service = nullptr;

    LOG(INFO) << "Pixel Thermal HAL Service 2.0 starting...";

    service = new Thermal();
    if (service == nullptr) {
        LOG(ERROR) << "Error creating an instance of Thermal HAL. Exiting...";
        return shutdown();
    }

    configureRpcThreadpool(1, true /* callerWillJoin */);

    android::hardware::setMinSchedulerPolicy(service, SCHED_NORMAL, -20);

    status = service->registerAsService();
    if (status != OK) {
        LOG(ERROR) << "Could not register service for ThermalHAL (" << status << ")";
        return shutdown();
    }

    LOG(INFO) << "Pixel Thermal HAL Service 2.0 started successfully.";
    joinRpcThreadpool();
    // We should not get past the joinRpcThreadpool().
    return shutdown();
}