1 files changed, 43 insertions, 0 deletions
diff --git a/vendor/rustix/src/process/pidfd.rs b/vendor/rustix/src/process/pidfd.rs
new file mode 100644
index 00000000..f812a9f6
--- /dev/null
+++ b/vendor/rustix/src/process/pidfd.rs
@@ -0,0 +1,43 @@
+use crate::fd::OwnedFd;
+use crate::process::{Pid, Signal};
+use crate::{backend, ffi, io};
+use backend::fd::AsFd;
+
+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: ffi::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)
+}
+
+/// `syscall(SYS_pidfd_send_signal, pidfd, sig, NULL, 0)`—Send a signal to a
+/// process specified by a file descriptor.
+///
+/// # References
+///  - [Linux]
+///
+/// [Linux]: https://man7.org/linux/man-pages/man2/pidfd_send_signal.2.html
+#[inline]
+pub fn pidfd_send_signal<Fd: AsFd>(pidfd: Fd, sig: Signal) -> io::Result<()> {
+    backend::process::syscalls::pidfd_send_signal(pidfd.as_fd(), sig)
+}