take AsFd by value

src/sched.rs

@@ -136,7 +136,7 @@ mod sched_linux_like {
     /// reassociate thread with a namespace
     ///
     /// See also [setns(2)](https://man7.org/linux/man-pages/man2/setns.2.html)
-    pub fn setns<Fd: AsFd>(fd: &Fd, nstype: CloneFlags) -> Result<()> {
+    pub fn setns<Fd: AsFd>(fd: Fd, nstype: CloneFlags) -> Result<()> {
         let res = unsafe { libc::setns(fd.as_fd().as_raw_fd(), nstype.bits()) };
 
         Errno::result(res).map(drop)

src/sys/uio.rs

@@ -9,7 +9,7 @@ use std::os::unix::io::{AsFd, AsRawFd};
 /// Low-level vectored write to a raw file descriptor
 ///
 /// See also [writev(2)](https://pubs.opengroup.org/onlinepubs/9699919799/functions/writev.html)
-pub fn writev<Fd: AsFd>(fd: &Fd, iov: &[IoSlice<'_>]) -> Result<usize> {
+pub fn writev<Fd: AsFd>(fd: Fd, iov: &[IoSlice<'_>]) -> Result<usize> {
     // SAFETY: to quote the documentation for `IoSlice`:
     //
     // [IoSlice] is semantically a wrapper around a &[u8], but is
@@ -27,7 +27,7 @@ pub fn writev<Fd: AsFd>(fd: &Fd, iov: &[IoSlice<'_>]) -> Result<usize> {
 /// Low-level vectored read from a raw file descriptor
 ///
 /// See also [readv(2)](https://pubs.opengroup.org/onlinepubs/9699919799/functions/readv.html)
-pub fn readv<Fd: AsFd>(fd: &Fd, iov: &mut [IoSliceMut<'_>]) -> Result<usize> {
+pub fn readv<Fd: AsFd>(fd: Fd, iov: &mut [IoSliceMut<'_>]) -> Result<usize> {
     // SAFETY: same as in writev(), IoSliceMut is ABI-compatible with iovec
     let res = unsafe {
         libc::readv(fd.as_fd().as_raw_fd(), iov.as_ptr() as *const libc::iovec, iov.len() as c_int)
@@ -44,7 +44,7 @@ pub fn readv<Fd: AsFd>(fd: &Fd, iov: &mut [IoSliceMut<'_>]) -> Result<usize> {
 /// See also: [`writev`](fn.writev.html) and [`pwrite`](fn.pwrite.html)
 #[cfg(not(any(target_os = "redox", target_os = "haiku")))]
 #[cfg_attr(docsrs, doc(cfg(all())))]
-pub fn pwritev<Fd: AsFd>(fd: &Fd, iov: &[IoSlice<'_>], offset: off_t) -> Result<usize> {
+pub fn pwritev<Fd: AsFd>(fd: Fd, iov: &[IoSlice<'_>], offset: off_t) -> Result<usize> {
     #[cfg(target_env = "uclibc")]
     let offset = offset as libc::off64_t; // uclibc doesn't use off_t
 
@@ -71,7 +71,7 @@ pub fn pwritev<Fd: AsFd>(fd: &Fd, iov: &[IoSlice<'_>], offset: off_t) -> Result<
 #[cfg(not(any(target_os = "redox", target_os = "haiku")))]
 #[cfg_attr(docsrs, doc(cfg(all())))]
 pub fn preadv<Fd: AsFd>(
-    fd: &Fd,
+    fd: Fd,
     iov: &mut [IoSliceMut<'_>],
     offset: off_t,
 ) -> Result<usize> {
@@ -95,7 +95,7 @@ pub fn preadv<Fd: AsFd>(
 ///
 /// See also [pwrite(2)](https://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html)
 // TODO: move to unistd
-pub fn pwrite<Fd: AsFd>(fd: &Fd, buf: &[u8], offset: off_t) -> Result<usize> {
+pub fn pwrite<Fd: AsFd>(fd: Fd, buf: &[u8], offset: off_t) -> Result<usize> {
     let res = unsafe {
         libc::pwrite(
             fd.as_fd().as_raw_fd(),
@@ -112,7 +112,7 @@ pub fn pwrite<Fd: AsFd>(fd: &Fd, buf: &[u8], offset: off_t) -> Result<usize> {
 ///
 /// See also [pread(2)](https://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html)
 // TODO: move to unistd
-pub fn pread<Fd: AsFd>(fd: &Fd, buf: &mut [u8], offset: off_t) -> Result<usize> {
+pub fn pread<Fd: AsFd>(fd: Fd, buf: &mut [u8], offset: off_t) -> Result<usize> {
     let res = unsafe {
         libc::pread(
             fd.as_fd().as_raw_fd(),