text: // 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 __STATUS_UTILS_HPP__
  #define __STATUS_UTILS_HPP__
  
  #include <string>
  
  #include <stout/option.hpp>
  #include <stout/stringify.hpp>
  
  // Return whether the wait(2) status was a successful process exit.
  inline bool WSUCCEEDED(int status)
  {
    return WIFEXITED(status) && WEXITSTATUS(status) == 0;
  }
  
  
  inline std::string WSTRINGIFY(int status)
  {
    std::string message;
  #ifdef __WINDOWS__
    // NOTE: On Windows, exit codes are not standardized, so we cannot
    // treat any exit codes differently.
    message += "exited with status ";
    message += stringify(status);
  #else
    if (WIFEXITED(status)) {
      message += "exited with status ";
      message += stringify(WEXITSTATUS(status));
    } else if (WIFSIGNALED(status)) {
      message += "terminated with signal ";
      message += strsignal(WTERMSIG(status));
      if (WCOREDUMP(status)) {
        message += " (core dumped)";
      }
    } else if (WIFSTOPPED(status)) {
      message += "stopped on signal ";
      message += strsignal(WSTOPSIG(status));
    } else {
      message += "wait status ";
      message += stringify(status);
    }
  #endif // __WINDOWS__
    return message;
  }
  
  #endif // __STATUS_UTILS_HPP__
  