-/* Should the "action" handler be invoked for this file descriptor? */
-static int check_handle_fd(int fd) {
- /* Load state from environment. Only necessary once per process. */
- if (!initialized) {
- init_from_environment();
- }
-
- /* tracked_fds_find() is most likely faster than calling isatty(),
- * therefore check if we are tracking this file descriptor first. */
- if (!tracked_fds_find(fd)) {
- return 0;
- }