1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
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
);
}
}
|
