From 1923938593131b0bbe48e55e4b26ada389bf9269 Mon Sep 17 00:00:00 2001
From: Mathias Buus <mathiasbuus@gmail.com>
Date: Thu, 12 Oct 2023 22:50:57 +0200
Subject: [PATCH] fix inf loop on sendmmsg error in prod

---
 src/io_posix.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/io_posix.c b/src/io_posix.c
index 6e179191..79cfef10 100644
--- a/src/io_posix.c
+++ b/src/io_posix.c
@@ -151,7 +151,9 @@ udx__on_writable (udx_socket_t *socket) {
 
     int nsent = rc > 0 ? rc : 0;
 
-    assert(rc >= 0 || rc == UV_EAGAIN || rc == UV_ENOBUFS);
+    if (rc < 0 && rc != UV_EAGAIN && rc != UV_ENOBUFS) {
+      nsent = pkts; // something errored badly, assume all packets sent and lost
+    }
 
     int unsent = pkts - nsent;