1 files changed, 75 insertions, 0 deletions
diff --git a/vendor/rustix/tests/time/timerfd.rs b/vendor/rustix/tests/time/timerfd.rs
new file mode 100644
index 000000000..6ad4dd72e
--- /dev/null
+++ b/vendor/rustix/tests/time/timerfd.rs
@@ -0,0 +1,75 @@
+use rustix::time::{
+    timerfd_create, timerfd_gettime, timerfd_settime, Itimerspec, TimerfdClockId, TimerfdFlags,
+    TimerfdTimerFlags, Timespec,
+};
+
+#[test]
+fn test_timerfd() {
+    let fd = timerfd_create(TimerfdClockId::Monotonic, TimerfdFlags::CLOEXEC).unwrap();
+
+    let set = Itimerspec {
+        it_interval: Timespec {
+            tv_sec: 0,
+            tv_nsec: 0,
+        },
+        it_value: Timespec {
+            tv_sec: 1,
+            tv_nsec: 2,
+        },
+    };
+    let _old: Itimerspec = timerfd_settime(&fd, TimerfdTimerFlags::ABSTIME, &set).unwrap();
+
+    // Wait for the timer to expire.
+    let mut buf = [0_u8; 8];
+    assert_eq!(rustix::io::read(&fd, &mut buf), Ok(8));
+    assert!(u64::from_ne_bytes(buf) >= 1);
+
+    let new = timerfd_gettime(&fd).unwrap();
+
+    // The timer counts down.
+    assert_eq!(set.it_interval.tv_sec, new.it_interval.tv_sec);
+    assert_eq!(set.it_interval.tv_nsec, new.it_interval.tv_nsec);
+    assert!(new.it_value.tv_sec <= set.it_value.tv_sec);
+    assert!(
+        new.it_value.tv_nsec < set.it_value.tv_nsec || new.it_value.tv_sec < set.it_value.tv_sec
+    );
+}
+
+/// Similar, but set an interval for a repeated timer. Don't check that the
+/// times are monotonic because that would race with the timer repeating.
+#[test]
+fn test_timerfd_with_interval() {
+    let fd = timerfd_create(TimerfdClockId::Monotonic, TimerfdFlags::CLOEXEC).unwrap();
+
+    let set = Itimerspec {
+        it_interval: Timespec {
+            tv_sec: 0,
+            tv_nsec: 6,
+        },
+        it_value: Timespec {
+            tv_sec: 1,
+            tv_nsec: 7,
+        },
+    };
+    let _old: Itimerspec = timerfd_settime(&fd, TimerfdTimerFlags::ABSTIME, &set).unwrap();
+
+    // Wait for the timer to expire.
+    let mut buf = [0_u8; 8];
+    assert_eq!(rustix::io::read(&fd, &mut buf), Ok(8));
+    assert!(u64::from_ne_bytes(buf) >= 1);
+
+    let new = timerfd_gettime(&fd).unwrap();
+
+    assert_eq!(set.it_interval.tv_sec, new.it_interval.tv_sec);
+    assert_eq!(set.it_interval.tv_nsec, new.it_interval.tv_nsec);
+
+    // Wait for the timer to expire again.
+    let mut buf = [0_u8; 8];
+    assert_eq!(rustix::io::read(&fd, &mut buf), Ok(8));
+    assert!(u64::from_ne_bytes(buf) >= 1);
+
+    let new = timerfd_gettime(&fd).unwrap();
+
+    assert_eq!(set.it_interval.tv_sec, new.it_interval.tv_sec);
+    assert_eq!(set.it_interval.tv_nsec, new.it_interval.tv_nsec);
+}