third_party/tmb/include/tmb/id_typedefs.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_ID_TYPEDEFS_H_
#define TMB_ID_TYPEDEFS_H_

#include <cstdint>
#include <limits>

namespace tmb {

/** \addtogroup TMB
 *  @{
 */

/**
 * @brief An ID, unique among all the clients of a particular MessageBus, of a
 *        particular client (an entity capable of sending and/or receiving
 *        messages).
 **/
typedef std::uint32_t client_id;
const client_id kClientIdNone
    = std::numeric_limits<client_id>::max();

/**
 * @brief An ID which uniquely identifies a particular application-specific
 *        message type. Clients can use this to determine how to safely
 *        interpret or cast received messages.
 **/
typedef std::uint32_t message_type_id;
const message_type_id kMessageTypeIdNone
    = std::numeric_limits<message_type_id>::max();

/** @} */

}  // namespace tmb

#endif  // TMB_ID_TYPEDEFS_H_