Class Data

include/process/subprocess.hpp:306–330

      const std::vector<int_fd>& whitelist_fds);

  struct Data
  {
    ~Data()
    {
      if (in.isSome()) { os::close(in.get()); }
      if (out.isSome()) { os::close(out.get()); }
      if (err.isSome()) { os::close(err.get()); }
    }

    pid_t pid;

#ifdef __WINDOWS__
    Option<::internal::windows::ProcessData> process_data;
#endif // __WINDOWS__

    // The parent side of the pipe for stdin/stdout/stderr. If the
    // IO mode is not a pipe, `None` will be stored.
    // NOTE: stdin, stdout, stderr are macros on some systems, hence
    // these names instead.
    Option<int_fd> in;
    Option<int_fd> out;
    Option<int_fd> err;

    Future<Option<int>> status;
  };

  Subprocess() : data(new Data()) {}