text: /*
   * Copyright (C) 2019 HERE Europe B.V.
   *
   * Licensed 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.
   *
   * SPDX-License-Identifier: Apache-2.0
   * License-Filename: LICENSE
   */
  
  #pragma once
  
  #include <cstdint>
  #include <limits>
  
  namespace olp {
  namespace network2 {
  
  /**
   * @brief Represents request id.
   * Values of this type are returned by Network::Send and used by
   * Network::Cancel.
   */
  using RequestId = std::uint64_t;
  
  /**
   * @brief List of special values for NetworkRequestId.
   */
  enum class RequestIdConstants : std::uint64_t {
    /// Value that indicates invalid request id.
    RequestIdInvalid = std::numeric_limits<RequestId>::min(),
    /// Minimal value of valid request id.
    RequestIdMin = std::numeric_limits<RequestId>::min() + 1,
    /// Maximal value of valid request id.
    RequestIdMax = std::numeric_limits<RequestId>::max(),
  };
  
  }  // namespace network2
  }  // namespace olp
  