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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/*/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)
}
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