Function close_fds::set_fds_cloexec_threadsafe

pub fn set_fds_cloexec_threadsafe(minfd: c_int, keep_fds: &[c_int])

Equivalent to set_fds_cloexec(), but behaves more reliably in multithreaded programs (at the cost of decreased performance on some platforms).

See iter_open_fds_threadsafe() for more details on what this means.