From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/io-lifetimes/tests/niche-optimizations.rs | 71 ++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 vendor/io-lifetimes/tests/niche-optimizations.rs

(limited to 'vendor/io-lifetimes/tests/niche-optimizations.rs')

diff --git a/vendor/io-lifetimes/tests/niche-optimizations.rs b/vendor/io-lifetimes/tests/niche-optimizations.rs
new file mode 100644
index 000000000..89316d559
--- /dev/null
+++ b/vendor/io-lifetimes/tests/niche-optimizations.rs
@@ -0,0 +1,71 @@
+#![cfg_attr(not(rustc_attrs), allow(unused_imports))]
+#![cfg_attr(target_os = "wasi", feature(wasi_ext))]
+#![cfg_attr(io_lifetimes_use_std, feature(io_safety))]
+
+use std::mem::size_of;
+
+#[cfg(any(unix, target_os = "wasi"))]
+use io_lifetimes::{BorrowedFd, OwnedFd};
+#[cfg(windows)]
+use io_lifetimes::{BorrowedSocket, OwnedSocket};
+
+#[cfg(unix)]
+use std::os::unix::io::{FromRawFd, IntoRawFd, RawFd};
+#[cfg(target_os = "wasi")]
+use std::os::wasi::io::{FromRawSocket, IntoRawSocket, RawFd};
+#[cfg(windows)]
+use std::os::windows::io::{FromRawSocket, IntoRawSocket, RawSocket};
+
+#[cfg(all(rustc_attrs, any(unix, target_os = "wasi")))]
+#[test]
+fn test_niche_optimizations() {
+    assert_eq!(size_of::<Option<OwnedFd>>(), size_of::<RawFd>());
+    assert_eq!(size_of::<Option<BorrowedFd<'static>>>(), size_of::<RawFd>());
+    unsafe {
+        assert_eq!(OwnedFd::from_raw_fd(RawFd::MIN).into_raw_fd(), RawFd::MIN);
+        assert_eq!(OwnedFd::from_raw_fd(RawFd::MAX).into_raw_fd(), RawFd::MAX);
+        assert_eq!(
+            Some(OwnedFd::from_raw_fd(RawFd::MIN))
+                .unwrap()
+                .into_raw_fd(),
+            RawFd::MIN
+        );
+        assert_eq!(
+            Some(OwnedFd::from_raw_fd(RawFd::MAX))
+                .unwrap()
+                .into_raw_fd(),
+            RawFd::MAX
+        );
+    }
+}
+
+#[cfg(all(rustc_attrs, windows))]
+#[test]
+fn test_niche_optimizations_socket() {
+    assert_eq!(size_of::<Option<OwnedSocket>>(), size_of::<RawSocket>());
+    assert_eq!(
+        size_of::<Option<BorrowedSocket<'static>>>(),
+        size_of::<RawSocket>(),
+    );
+    unsafe {
+        #[cfg(target_pointer_width = "32")]
+        let (min, max) = (i32::MIN as u32, i32::MAX as u32);
+        #[cfg(target_pointer_width = "64")]
+        let (min, max) = (i64::MIN as u64, i64::MAX as u64);
+
+        assert_eq!(OwnedSocket::from_raw_socket(min).into_raw_socket(), min);
+        assert_eq!(OwnedSocket::from_raw_socket(max).into_raw_socket(), max);
+        assert_eq!(
+            Some(OwnedSocket::from_raw_socket(min))
+                .unwrap()
+                .into_raw_socket(),
+            min
+        );
+        assert_eq!(
+            Some(OwnedSocket::from_raw_socket(max))
+                .unwrap()
+                .into_raw_socket(),
+            max
+        );
+    }
+}
-- 
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