From 27d1844952386a52f190935f8fde1cc967f1e01f Mon Sep 17 00:00:00 2001
From: Steve Lau <stevelauc@outlook.com>
Date: Sun, 11 Dec 2022 12:19:58 +0800
Subject: feat: I/O safety for 'sys/memfd' & 'sys/event' & 'sys/eventfd'

---
 src/sys/memfd.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/sys/memfd.rs')

diff --git a/src/sys/memfd.rs b/src/sys/memfd.rs
index ad9345e8..f349a743 100644
--- a/src/sys/memfd.rs
+++ b/src/sys/memfd.rs
@@ -1,7 +1,7 @@
 //! Interfaces for managing memory-backed files.
 
 use cfg_if::cfg_if;
-use std::os::unix::io::RawFd;
+use std::os::unix::io::{FromRawFd, OwnedFd, RawFd};
 
 use crate::errno::Errno;
 use crate::Result;
@@ -40,7 +40,7 @@ libc_bitflags!(
 /// For more information, see [`memfd_create(2)`].
 ///
 /// [`memfd_create(2)`]: https://man7.org/linux/man-pages/man2/memfd_create.2.html
-pub fn memfd_create(name: &CStr, flags: MemFdCreateFlag) -> Result<RawFd> {
+pub fn memfd_create(name: &CStr, flags: MemFdCreateFlag) -> Result<OwnedFd> {
     let res = unsafe {
         cfg_if! {
             if #[cfg(all(
@@ -60,5 +60,5 @@ pub fn memfd_create(name: &CStr, flags: MemFdCreateFlag) -> Result<RawFd> {
         }
     };
 
-    Errno::result(res).map(|r| r as RawFd)
+    Errno::result(res).map(|r| unsafe { OwnedFd::from_raw_fd(r as RawFd) })
 }
-- 
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