perf_header__write_pipe
if (perf_header__write_pipe(data->input_pipe[1]) < 0)
ret = perf_header__write_pipe(perf_data__fd(&inject.output));
err = perf_header__write_pipe(fd);
err = perf_header__write_pipe(perf_data__fd(&perf_stat.data));
err = perf_header__write_pipe(td->fd);
int perf_header__write_pipe(int fd);