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wlan-cloud-lib-cppkafka/include/cppkafka/message_timestamp.h
2020-10-18 12:30:27 +01:00

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/*
* Copyright (c) 2017, Matias Fontanini
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef CPPKAFKA_MESSAGE_TIMESTAMP_H
#define CPPKAFKA_MESSAGE_TIMESTAMP_H
#include <chrono>
#include <librdkafka/rdkafka.h>
#include "macros.h"
namespace cppkafka {
/**
* Represents a message's timestamp
*/
class CPPKAFKA_API MessageTimestamp {
friend class Message;
public:
/**
* The timestamp type
*/
enum TimestampType {
CREATE_TIME = RD_KAFKA_TIMESTAMP_CREATE_TIME,
LOG_APPEND_TIME = RD_KAFKA_TIMESTAMP_LOG_APPEND_TIME
};
/**
* Gets the timestamp value. If the timestamp was created with a 'time_point',
* the duration represents the number of milliseconds since epoch.
*/
std::chrono::milliseconds get_timestamp() const;
/**
* Gets the timestamp type
*/
TimestampType get_type() const;
private:
MessageTimestamp(std::chrono::milliseconds timestamp, TimestampType type);
std::chrono::milliseconds timestamp_;
TimestampType type_;
};
} // cppkafka
#endif //CPPKAFKA_MESSAGE_TIMESTAMP_H