From 0dba9045ef0561f3f73d6de88b25cbd147771d59 Mon Sep 17 00:00:00 2001
From: Steven Engler <opara@cs.georgetown.edu>
Date: Tue, 14 Mar 2023 23:25:02 -0400
Subject: [PATCH] Added `MSG_WAITFORONE` flag

---
 src/sys/socket/mod.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/sys/socket/mod.rs b/src/sys/socket/mod.rs
index 00c905608a..a5dc2cee15 100644
--- a/src/sys/socket/mod.rs
+++ b/src/sys/socket/mod.rs
@@ -365,6 +365,15 @@ libc_bitflags! {
                   target_os = "solaris"))]
         #[cfg_attr(docsrs, doc(cfg(all())))]
         MSG_NOSIGNAL;
+        /// Turns on [`MSG_DONTWAIT`] after the first message has been received (only for
+        /// `recvmmsg()`).
+        #[cfg(any(target_os = "android",
+                  target_os = "fuchsia",
+                  target_os = "linux",
+                  target_os = "netbsd",
+                  target_os = "solaris"))]
+        #[cfg_attr(docsrs, doc(cfg(all())))]
+        MSG_WAITFORONE;
     }
 }