From 7d286961ba80bd727c62195a32f9cedce0c37882 Mon Sep 17 00:00:00 2001
From: Han Yang <dhy1996@live.com.sg>
Date: Wed, 25 Jan 2023 20:40:14 +0800
Subject: [PATCH] Add `MSG_WAITFORONE.try_into().unwrap()` to deal with
 different type signature on musl libc (#29369)

* add try_into().unwrap() to deal with different type signature on musl libc

* add allow useless_conversion

* trailing whitespace

* cargo fmt
---
 streamer/src/recvmmsg.rs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/streamer/src/recvmmsg.rs b/streamer/src/recvmmsg.rs
index 507c07651..72c7d3c51 100644
--- a/streamer/src/recvmmsg.rs
+++ b/streamer/src/recvmmsg.rs
@@ -99,8 +99,17 @@ pub fn recv_mmsg(sock: &UdpSocket, packets: &mut [Packet]) -> io::Result</*num p
         tv_sec: 1,
         tv_nsec: 0,
     };
-    let nrecv =
-        unsafe { libc::recvmmsg(sock_fd, &mut hdrs[0], count as u32, MSG_WAITFORONE, &mut ts) };
+    // TODO: remove .try_into().unwrap() once rust libc fixes recvmmsg types for musl
+    #[allow(clippy::useless_conversion)]
+    let nrecv = unsafe {
+        libc::recvmmsg(
+            sock_fd,
+            &mut hdrs[0],
+            count as u32,
+            MSG_WAITFORONE.try_into().unwrap(),
+            &mut ts,
+        )
+    };
     let nrecv = if nrecv < 0 {
         return Err(io::Error::last_os_error());
     } else {