From 5ccb37a3f70193e6dabf0182bba28d74becf0c8e Mon Sep 17 00:00:00 2001
From: pjht <pterpstra@pterpstra.com>
Date: Sun, 22 Sep 2024 14:53:19 -0500
Subject: [PATCH] mikros: Do not close stdio after every use

---
 library/std/src/sys/pal/mikros/stdio.rs | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/library/std/src/sys/pal/mikros/stdio.rs b/library/std/src/sys/pal/mikros/stdio.rs
index d24f8338cb1..b46dea6c49f 100644
--- a/library/std/src/sys/pal/mikros/stdio.rs
+++ b/library/std/src/sys/pal/mikros/stdio.rs
@@ -26,8 +26,9 @@ fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
             return Ok(0);
         };
         let file = File { fs_pid: fd.0, fd: fd.1, pos: AtomicUsize::new(0) };
-        let num_bytes = file.read(buf)?;
-        Ok(num_bytes)
+        let res = file.read(buf);
+        crate::mem::drop(file); // do not close the temporary file struct
+        res
     }
 }
 
@@ -49,7 +50,9 @@ fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
             return Ok(0);
         };
         let file = File { fs_pid: fd.0, fd: fd.1, pos: AtomicUsize::new(0) };
-        file.write(buf)
+        let res = file.write(buf);
+        crate::mem::drop(file); // do not close the temporary file struct
+        res
     }
 
     fn flush(&mut self) -> io::Result<()> {
@@ -75,7 +78,9 @@ fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
             return Ok(0);
         };
         let file = File { fs_pid: fd.0, fd: fd.1, pos: AtomicUsize::new(0) };
-        file.write(buf)
+        let res = file.write(buf);
+        crate::mem::drop(file); // do not close the temporary file struct
+        res
     }
 
     fn flush(&mut self) -> io::Result<()> {