PowerMonitor.h

Go to the documentation of this file.

/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file 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.
 */

#ifndef ALEXA_CLIENT_SDK_AVSCOMMON_UTILS_INCLUDE_AVSCOMMON_UTILS_POWER_POWERMONITOR_H_
#define ALEXA_CLIENT_SDK_AVSCOMMON_UTILS_INCLUDE_AVSCOMMON_UTILS_POWER_POWERMONITOR_H_

#include <memory>
#include <mutex>
#include <string>
#include <thread>
#include <unordered_map>

#include <AVSCommon/SDKInterfaces/PowerResourceManagerInterface.h>
#include "AVSCommon/Utils/Power/PowerResource.h"

namespace alexaClientSDK {
namespace avsCommon {
namespace utils {
namespace power {

class PowerMonitor {
public:
    static std::shared_ptr<PowerMonitor> getInstance();

    void activate(std::shared_ptr<sdkInterfaces::PowerResourceManagerInterface> powerManager);

    bool isActive();

    void deactivate();

    std::shared_ptr<sdkInterfaces::PowerResourceManagerInterface> getPowerResourceManager();

    std::shared_ptr<PowerResource> getThreadPowerResourceOrCreate(
        const std::string& identifier,
        sdkInterfaces::PowerResourceManagerInterface::PowerResourceLevel level =
            sdkInterfaces::PowerResourceManagerInterface::PowerResourceLevel::STANDBY_MED);

    std::shared_ptr<PowerResource> getThreadPowerResource();

    std::shared_ptr<PowerResource> assignThreadPowerResource(std::shared_ptr<PowerResource> powerResource);

    std::shared_ptr<PowerResource> createLocalPowerResource(
        const std::string& identifier,
        sdkInterfaces::PowerResourceManagerInterface::PowerResourceLevel level =
            sdkInterfaces::PowerResourceManagerInterface::PowerResourceLevel::STANDBY_MED);

    void removeThreadPowerResource();

private:
    bool isActiveLocked();

    static std::mutex m_mutex;

    static std::shared_ptr<PowerMonitor> m_monitor;

    std::shared_ptr<sdkInterfaces::PowerResourceManagerInterface> m_powerManager;

    std::unordered_map<std::thread::id, std::shared_ptr<PowerResource>> m_threadPowerResources;
};

}  // namespace power
}  // namespace utils
}  // namespace avsCommon
}  // namespace alexaClientSDK

#endif  // ALEXA_CLIENT_SDK_AVSCOMMON_UTILS_INCLUDE_AVSCOMMON_UTILS_POWER_POWERMONITOR_H_