From 3d99869c0c91635eaf24f39866d0494e6d3fd1d1 Mon Sep 17 00:00:00 2001
From: GaryOderNichts <12049776+GaryOderNichts@users.noreply.github.com>
Date: Sun, 18 Feb 2024 17:00:27 +0100
Subject: [PATCH] Implement support for userbuffers on Wii U

The Wii U socket implementation has limited memory available. To support larger receive buffers, application memory needs to be provided.
To make sockets use this user memory the `SO_RUSRBUF` option needs to be set on the socket.
---
 src/PlatformSockets.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/PlatformSockets.c b/src/PlatformSockets.c
index 3ba3bb1..cb2eab7 100644
--- a/src/PlatformSockets.c
+++ b/src/PlatformSockets.c
@@ -344,6 +344,12 @@ SOCKET bindUdpSocket(int addressFamily, struct sockaddr_storage* localAddr, SOCK
             Limelog("WSAIoctl(SIO_UDP_CONNRESET) failed: %d\n", LastSocketError());
         }
     }
+#elif defined(__WIIU__)
+    {
+        // Enable usage of userbuffers on Wii U
+        int val = 1;
+        setsockopt(s, SOL_SOCKET, SO_RUSRBUF, &val, sizeof(val));
+    }
 #endif
 
     // Enable QOS for the socket (best effort)