From 1ce559b69096fc1cfd306a80250fddb52168d7f4 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Fri, 12 Apr 2024 16:41:29 +0100
Subject: [PATCH] std::net: TcpListener shrinks the backlog argument to 32 for
 Haiku.

---
 library/std/src/sys_common/net.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/library/std/src/sys_common/net.rs b/library/std/src/sys_common/net.rs
index 8c9885974b481..6a268633f72c1 100644
--- a/library/std/src/sys_common/net.rs
+++ b/library/std/src/sys_common/net.rs
@@ -417,6 +417,10 @@ impl TcpListener {
                 // it allows up to about 37, but other times it doesn't even
                 // accept 32. There may be a global limitation causing this.
                 let backlog = 20;
+            } else if #[cfg(target_os = "haiku")] {
+                // Haiku does not support a queue length > 32
+                // https://github.com/haiku/haiku/blob/979a0bc487864675517fb2fab28f87dc8bf43041/headers/posix/sys/socket.h#L81
+                let backlog = 32;
             } else {
                 // The default for all other platforms
                 let backlog = 128;