pub fn raise_fd_limit() { #[cfg(unix)] #[allow(clippy::undocumented_unsafe_blocks)] unsafe { let mut limits = libc::rlimit { rlim_cur: 0, rlim_max: 0, };
if 0 != libc::getrlimit(libc::RLIMIT_NOFILE, &mut limits) { return; }
if limits.rlim_cur == libc::RLIM_INFINITY { return; }
if limits.rlim_max == libc::RLIM_INFINITY { let mut min = limits.rlim_cur; let mut max = 1 << 20;
while min + 1 < max { limits.rlim_cur = min + (max - min) / 2; match libc::setrlimit(libc::RLIMIT_NOFILE, &limits) { 0 => min = limits.rlim_cur, _ => max = limits.rlim_cur, } }
return; }
if limits.rlim_cur < limits.rlim_max { limits.rlim_cur = limits.rlim_max; libc::setrlimit(libc::RLIMIT_NOFILE, &limits); } }}