watch_file
wd = watch_file(ifd, IN_ACCESS, path);
wd = watch_file(ifd, IN_ATTRIB, path);
wd2 = watch_file(ifd, IN_CLOSE_NOWRITE | IN_CLOSE_WRITE, file);
wd = watch_file(ifd, IN_CLOSE_NOWRITE | IN_CLOSE_WRITE, path);
wd3 = watch_file(ifd, IN_MOVE_SELF, path3);