third_party/tmb/include/tmb/internal/message_metadata.h

/**
 * 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 TMB_INTERNAL_MESSAGE_METADATA_H_
#define TMB_INTERNAL_MESSAGE_METADATA_H_

#include <chrono>  // NOLINT(build/c++11)

#include "tmb/id_typedefs.h"

namespace tmb {
namespace internal {

// Metadata which is appended to the end of message contents stored in LevelDB
// and Zookeeper.
struct MessageMetadata {
  message_type_id message_type;
  client_id sender;
  std::chrono::time_point<std::chrono::high_resolution_clock> send_time;
};

}  // namespace internal
}  // namespace tmb

#endif  // TMB_INTERNAL_MESSAGE_METADATA_H_