| use crate::fd::OwnedFd; |
| use crate::process::Pid; |
| use crate::{backend, io}; |
| |
| bitflags::bitflags! { |
| /// `PIDFD_*` flags for use with [`pidfd_open`]. |
| /// |
| /// [`pidfd_open`]: crate::process::pidfd_open |
| #[repr(transparent)] |
| #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)] |
| pub struct PidfdFlags: backend::c::c_uint { |
| /// `PIDFD_NONBLOCK`. |
| const NONBLOCK = backend::c::PIDFD_NONBLOCK; |
| |
| /// <https://docs.rs/bitflags/latest/bitflags/#externally-defined-flags> |
| const _ = !0; |
| } |
| } |
| |
| /// `syscall(SYS_pidfd_open, pid, flags)`—Creates a file descriptor for a |
| /// process. |
| /// |
| /// # References |
| /// - [Linux] |
| /// |
| /// [Linux]: https://man7.org/linux/man-pages/man2/pidfd_open.2.html |
| #[inline] |
| pub fn pidfd_open(pid: Pid, flags: PidfdFlags) -> io::Result<OwnedFd> { |
| backend::process::syscalls::pidfd_open(pid, flags) |
| } |