1 files changed, 91 insertions, 0 deletions
diff --git a/vendor/rustix/src/backend/libc/thread/futex.rs b/vendor/rustix/src/backend/libc/thread/futex.rs
new file mode 100644
index 00000000..5e836a9a
--- /dev/null
+++ b/vendor/rustix/src/backend/libc/thread/futex.rs
@@ -0,0 +1,91 @@
+use crate::backend::c;
+
+bitflags::bitflags! {
+    /// `FUTEX_*` flags for use with the functions in [`futex`].
+    ///
+    /// [`futex`]: mod@crate::thread::futex
+    #[repr(transparent)]
+    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
+    pub struct Flags: u32 {
+        /// `FUTEX_PRIVATE_FLAG`
+        const PRIVATE = bitcast!(c::FUTEX_PRIVATE_FLAG);
+        /// `FUTEX_CLOCK_REALTIME`
+        const CLOCK_REALTIME = bitcast!(c::FUTEX_CLOCK_REALTIME);
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+bitflags::bitflags! {
+    /// `FUTEX2_*` flags for use with the functions in [`Waitv`].
+    ///
+    /// Not to be confused with [`WaitvFlags`], which is passed as an argument
+    /// to the `waitv` function.
+    ///
+    /// [`Waitv`]: crate::thread::futex::Waitv
+    /// [`WaitvFlags`]: crate::thread::futex::WaitvFlags
+    #[repr(transparent)]
+    #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
+    pub struct WaitFlags: u32 {
+        /// `FUTEX_U8`
+        const SIZE_U8 = linux_raw_sys::general::FUTEX2_SIZE_U8;
+        /// `FUTEX_U16`
+        const SIZE_U16 = linux_raw_sys::general::FUTEX2_SIZE_U16;
+        /// `FUTEX_U32`
+        const SIZE_U32 = linux_raw_sys::general::FUTEX2_SIZE_U32;
+        /// `FUTEX_U64`
+        const SIZE_U64 = linux_raw_sys::general::FUTEX2_SIZE_U64;
+        /// `FUTEX_SIZE_MASK`
+        const SIZE_MASK = linux_raw_sys::general::FUTEX2_SIZE_MASK;
+
+        /// `FUTEX2_NUMA`
+        const NUMA = linux_raw_sys::general::FUTEX2_NUMA;
+
+        /// `FUTEX2_PRIVATE`
+        const PRIVATE = linux_raw_sys::general::FUTEX2_PRIVATE;
+
+        /// <https://docs.rs/bitflags/*/bitflags/#externally-defined-flags>
+        const _ = !0;
+    }
+}
+
+/// `FUTEX_*` operations for use with the futex syscall wrappers.
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+#[repr(u32)]
+pub(crate) enum Operation {
+    /// `FUTEX_WAIT`
+    Wait = bitcast!(c::FUTEX_WAIT),
+    /// `FUTEX_WAKE`
+    Wake = bitcast!(c::FUTEX_WAKE),
+    /// `FUTEX_FD`
+    Fd = bitcast!(c::FUTEX_FD),
+    /// `FUTEX_REQUEUE`
+    Requeue = bitcast!(c::FUTEX_REQUEUE),
+    /// `FUTEX_CMP_REQUEUE`
+    CmpRequeue = bitcast!(c::FUTEX_CMP_REQUEUE),
+    /// `FUTEX_WAKE_OP`
+    WakeOp = bitcast!(c::FUTEX_WAKE_OP),
+    /// `FUTEX_LOCK_PI`
+    LockPi = bitcast!(c::FUTEX_LOCK_PI),
+    /// `FUTEX_UNLOCK_PI`
+    UnlockPi = bitcast!(c::FUTEX_UNLOCK_PI),
+    /// `FUTEX_TRYLOCK_PI`
+    TrylockPi = bitcast!(c::FUTEX_TRYLOCK_PI),
+    /// `FUTEX_WAIT_BITSET`
+    WaitBitset = bitcast!(c::FUTEX_WAIT_BITSET),
+    /// `FUTEX_WAKE_BITSET`
+    WakeBitset = bitcast!(c::FUTEX_WAKE_BITSET),
+    /// `FUTEX_WAIT_REQUEUE_PI`
+    WaitRequeuePi = bitcast!(c::FUTEX_WAIT_REQUEUE_PI),
+    /// `FUTEX_CMP_REQUEUE_PI`
+    CmpRequeuePi = bitcast!(c::FUTEX_CMP_REQUEUE_PI),
+    /// `FUTEX_LOCK_PI2`
+    LockPi2 = bitcast!(c::FUTEX_LOCK_PI2),
+}
+
+/// `FUTEX_WAITERS`
+pub const WAITERS: u32 = linux_raw_sys::general::FUTEX_WAITERS;
+
+/// `FUTEX_OWNER_DIED`
+pub const OWNER_DIED: u32 = linux_raw_sys::general::FUTEX_OWNER_DIED;