Function pidfd_open

src/backend/libc/process/syscalls.rs:608–621

(pid: Pid, flags: PidfdFlags)

#[cfg(target_os = "linux")]
pub(crate) fn pidfd_open(pid: Pid, flags: PidfdFlags) -> io::Result<OwnedFd> {
    syscall! {
        fn pidfd_open(
            pid: c::pid_t,
            flags: c::c_uint
        ) via SYS_pidfd_open -> c::c_int
    }
    unsafe {
        ret_owned_fd(pidfd_open(
            pid.as_raw_nonzero().get(),
            bitflags_bits!(flags),
        ))
    }
}

#[cfg(target_os = "linux")]
pub(crate) fn pidfd_send_signal(pidfd: BorrowedFd<'_>, sig: Signal) -> io::Result<()> {