Function pipe_cloexec

cpp-subprocess/subprocess.hpp:615–628

! * Function: pipe_cloexec * Creates a pipe and sets FD_CLOEXEC flag on both * read and write descriptors of the pipe. * Parameters: * [out] : A pair of file descriptors. * First element of pair is the read descriptor of pipe. * Second element is the write descriptor of pipe. */

   *         Second element is the write descriptor of pipe.
   */
  static inline
  std::pair<int, int> pipe_cloexec() noexcept(false)
  {
    int pipe_fds[2];
    int res = pipe(pipe_fds);
    if (res) {
      throw OSError("pipe failure", errno);
    }

    set_clo_on_exec(pipe_fds[0]);
    set_clo_on_exec(pipe_fds[1]);

    return std::make_pair(pipe_fds[0], pipe_fds[1]);
  }
#endif