From 1b045d464d5703b97d7fbd5b434454fc60b96915 Mon Sep 17 00:00:00 2001
From: Xu Meng <mengxumx@cn.ibm.com>
Date: Mon, 20 Jan 2020 01:26:27 -0600
Subject: [PATCH] ibmi: ensure that pipe backlog is not zero

On IBMi PASE, listen(pipe_fd, backlog=0) leads to "Connection refused" error

PR-URL: https://github.com/libuv/libuv/pull/2641
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
---
 src/unix/pipe.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/unix/pipe.c b/src/unix/pipe.c
index cdf24fa9..78ce1542 100644
--- a/src/unix/pipe.c
+++ b/src/unix/pipe.c
@@ -95,8 +95,9 @@ int uv_pipe_listen(uv_pipe_t* handle, int backlog, uv_connection_cb cb) {
   if (uv__stream_fd(handle) == -1)
     return UV_EINVAL;
 
-#if defined(__MVS__)
+#if defined(__MVS__) || defined(__PASE__)
   /* On zOS, backlog=0 has undefined behaviour */
+  /* On IBMi PASE, backlog=0 leads to "Connection refused" error */
   if (backlog == 0)
     backlog = 1;
   else if (backlog < 0)