SafeCTimeAccess.h

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/*
 * 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_TIMING_SAFECTIMEACCESS_H_
#define ALEXA_CLIENT_SDK_AVSCOMMON_UTILS_INCLUDE_AVSCOMMON_UTILS_TIMING_SAFECTIMEACCESS_H_

#include <ctime>
#include <memory>
#include <mutex>

namespace alexaClientSDK {
namespace avsCommon {
namespace utils {
namespace timing {

class SafeCTimeAccess {
public:
    static std::shared_ptr<SafeCTimeAccess> instance();

    bool getGmtime(const std::time_t& time, std::tm* calendarTime);

    bool getLocaltime(const std::time_t& time, std::tm* calendarTime);

private:
    SafeCTimeAccess() = default;

    bool safeAccess(
        std::tm* (*timeAccessFunction)(const std::time_t* time),
        const std::time_t& time,
        std::tm* calendarTime);

    std::mutex m_timeLock;
};

}  // namespace timing
}  // namespace utils
}  // namespace avsCommon
}  // namespace alexaClientSDK

#endif  // ALEXA_CLIENT_SDK_AVSCOMMON_UTILS_INCLUDE_AVSCOMMON_UTILS_TIMING_SAFECTIMEACCESS_H_