src/producer/CorrelationIdUtil.hpp

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
#ifndef ROCKETMQ_PRODUCER_CORRELATIONIDUTIL_HPP_
#define ROCKETMQ_PRODUCER_CORRELATIONIDUTIL_HPP_

#include <atomic>
#include <string>

#include "UtilAll.h"

namespace rocketmq {

class CorrelationIdUtil {
 public:
  static std::string createCorrelationId() {
    static std::atomic<uint64_t> seqAllocator;
    return UtilAll::to_string(seqAllocator.fetch_add(1));
  }
};

}  // namespace rocketmq

#endif  // ROCKETMQ_PRODUCER_CORRELATIONIDUTIL_HPP_