| #[cfg(any(unix, target_os = "wasi"))] |
| #[test] |
| fn test_raw_fd() { |
| #[cfg(unix)] |
| use crate::os::unix::io::{AsRawFd, BorrowedFd, FromRawFd, IntoRawFd, RawFd}; |
| #[cfg(target_os = "wasi")] |
| use crate::os::wasi::io::{AsRawFd, BorrowedFd, FromRawFd, IntoRawFd, RawFd}; |
| |
| let raw_fd: RawFd = crate::io::stdin().as_raw_fd(); |
| |
| let stdin_as_file = unsafe { crate::fs::File::from_raw_fd(raw_fd) }; |
| assert_eq!(stdin_as_file.as_raw_fd(), raw_fd); |
| assert_eq!(unsafe { BorrowedFd::borrow_raw(raw_fd).as_raw_fd() }, raw_fd); |
| assert_eq!(stdin_as_file.into_raw_fd(), 0); |
| } |
| |
| #[cfg(any(unix, target_os = "wasi"))] |
| #[test] |
| fn test_fd() { |
| #[cfg(unix)] |
| use crate::os::unix::io::{AsFd, AsRawFd, BorrowedFd, FromRawFd, IntoRawFd, OwnedFd, RawFd}; |
| #[cfg(target_os = "wasi")] |
| use crate::os::wasi::io::{AsFd, AsRawFd, BorrowedFd, FromRawFd, IntoRawFd, OwnedFd, RawFd}; |
| |
| let stdin = crate::io::stdin(); |
| let fd: BorrowedFd<'_> = stdin.as_fd(); |
| let raw_fd: RawFd = fd.as_raw_fd(); |
| let owned_fd: OwnedFd = unsafe { OwnedFd::from_raw_fd(raw_fd) }; |
| |
| let stdin_as_file = crate::fs::File::from(owned_fd); |
| |
| assert_eq!(stdin_as_file.as_fd().as_raw_fd(), raw_fd); |
| assert_eq!(Into::<OwnedFd>::into(stdin_as_file).into_raw_fd(), raw_fd); |
| } |
| |
| #[cfg(any(unix, target_os = "wasi"))] |
| #[test] |
| fn test_niche_optimizations() { |
| use crate::mem::size_of; |
| #[cfg(unix)] |
| use crate::os::unix::io::{BorrowedFd, FromRawFd, IntoRawFd, OwnedFd, RawFd}; |
| #[cfg(target_os = "wasi")] |
| use crate::os::wasi::io::{BorrowedFd, FromRawFd, IntoRawFd, OwnedFd, RawFd}; |
| |
| 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); |
| } |
| } |