From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/rust/mio-0.6.23/src/io.rs | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 third_party/rust/mio-0.6.23/src/io.rs

(limited to 'third_party/rust/mio-0.6.23/src/io.rs')

diff --git a/third_party/rust/mio-0.6.23/src/io.rs b/third_party/rust/mio-0.6.23/src/io.rs
new file mode 100644
index 0000000000..275001387d
--- /dev/null
+++ b/third_party/rust/mio-0.6.23/src/io.rs
@@ -0,0 +1,35 @@
+// Re-export the io::Result / Error types for convenience
+pub use std::io::{Read, Write, Result, Error, ErrorKind};
+
+// TODO: Delete this
+/// A helper trait to provide the map_non_block function on Results.
+pub trait MapNonBlock<T> {
+    /// Maps a `Result<T>` to a `Result<Option<T>>` by converting
+    /// operation-would-block errors into `Ok(None)`.
+    fn map_non_block(self) -> Result<Option<T>>;
+}
+
+impl<T> MapNonBlock<T> for Result<T> {
+    fn map_non_block(self) -> Result<Option<T>> {
+        use std::io::ErrorKind::WouldBlock;
+
+        match self {
+            Ok(value) => Ok(Some(value)),
+            Err(err) => {
+                if let WouldBlock = err.kind() {
+                    Ok(None)
+                } else {
+                    Err(err)
+                }
+            }
+        }
+    }
+}
+
+#[cfg(feature = "with-deprecated")]
+pub mod deprecated {
+    /// Returns a std `WouldBlock` error without allocating
+    pub fn would_block() -> ::std::io::Error {
+        ::std::io::ErrorKind::WouldBlock.into()
+    }
+}
-- 
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