Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 30 insertions, 0 deletions

diff --git a/vendor/rustix/src/process/pidfd.rs b/vendor/rustix/src/process/pidfd.rs
new file mode 100644
index 0000000..abebaf2
--- /dev/null
+++ b/vendor/rustix/src/process/pidfd.rs
@@ -0,0 +1,30 @@
+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)
+}