Make stream_len atomic for File

est31 · est31 · commit 811d5b478277 · 2023-02-22T18:22:18.000+01:00
diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs
@@ -795,6 +795,11 @@ impl Seek for File {
     fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {
         self.inner.seek(pos)
     }
+
+    fn stream_len(&mut self) -> io::Result<u64> {
+        let file_attr = self.inner.file_attr()?;
+        Ok(file_attr.size())
+    }
 }
 #[stable(feature = "rust1", since = "1.0.0")]
 impl Read for &File {
@@ -851,6 +856,10 @@ impl Seek for &File {
     fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {
         self.inner.seek(pos)
     }
+    fn stream_len(&mut self) -> io::Result<u64> {
+        let file_attr = self.inner.file_attr()?;
+        Ok(file_attr.size())
+    }
 }
 
 impl OpenOptions {

Original file line number	Diff line number	Diff line change
`@@ -795,6 +795,11 @@ impl Seek for File {`
`795`	`795`	`fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {`
`796`	`796`	`self.inner.seek(pos)`
`797`	`797`	`}`
	`798`	`+`
	`799`	`+ fn stream_len(&mut self) -> io::Result<u64> {`
	`800`	`+ let file_attr = self.inner.file_attr()?;`
	`801`	`+ Ok(file_attr.size())`
	`802`	`+ }`
`798`	`803`	`}`
`799`	`804`	`#[stable(feature = "rust1", since = "1.0.0")]`
`800`	`805`	`impl Read for &File {`
`@@ -851,6 +856,10 @@ impl Seek for &File {`
`851`	`856`	`fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {`
`852`	`857`	`self.inner.seek(pos)`
`853`	`858`	`}`
	`859`	`+ fn stream_len(&mut self) -> io::Result<u64> {`
	`860`	`+ let file_attr = self.inner.file_attr()?;`
	`861`	`+ Ok(file_attr.size())`
	`862`	`+ }`
`854`	`863`	`}`
`855`	`864`
`856`	`865`	`impl OpenOptions {`