explicit PosixSpawnIORedirector()

in tools/common/process.cc [76:88]

• 12 lines of code
• 2 McCabe index (conditional complexity)

  explicit PosixSpawnIORedirector(int stderr_pipe[], bool stdoutToStderr) {
    memcpy(stderr_pipe_, stderr_pipe, sizeof(int) * 2);

    posix_spawn_file_actions_init(&file_actions_);
    posix_spawn_file_actions_addclose(&file_actions_, stderr_pipe_[0]);
    if (stdoutToStderr) {
      posix_spawn_file_actions_adddup2(&file_actions_, stderr_pipe_[1],
                                       STDOUT_FILENO);
    }
    posix_spawn_file_actions_adddup2(&file_actions_, stderr_pipe_[1],
                                     STDERR_FILENO);
    posix_spawn_file_actions_addclose(&file_actions_, stderr_pipe_[1]);
  }