heron/common/src/cpp/network/network_error.h

/*
 * Copyright 2015 Twitter, Inc.
 *
 * 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.
 */

#ifndef _CORE_SRC_CPP_NEWTORK_NETWORK_ERROR_H_
#define _CORE_SRC_CPP_NEWTORK_NETWORK_ERROR_H_

#include <ostream>
#include <string>

enum NetworkErrorCode {
  OK = 0,
  CONNECT_ERROR,
  READ_ERROR,
  WRITE_ERROR,
  CLOSE_ERROR,
  INVALID_CONNECTION,
  DUPLICATE_START,
  INVALID_PACKET,
  DUPLICATE_PACKET_ID,
  TIMEOUT
};

static inline std::ostream& operator<<(std::ostream& os, const NetworkErrorCode code) {
  std::string strs[] = { "OK", "Connection error", "Read error", "Write error",
                         "Close error", "Invalid connection", "Duplicate start",
                         "Invalid packet", "Duplicate packet ID", "Timeout" };
  os << strs[code];
  return os;
}

#endif  // _CORE_SRC_CPP_NEWTORK_NETWORK_ERROR_H_