From 0b26af376a8d788adf00ed4cb60aba4da2f046c1 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Tue, 5 Mar 2013 15:57:38 +0100
Subject: [PATCH] unix: handle POLLERR and POLLHUP in uv__stream_io

Fixes a busy loop when the file descriptor emits POLLHUP but not POLLIN
or POLLOUT, e.g. when polling the read end of a pipe and the write end
is closed.

Fixes joyent/node#4923.
---
 src/unix/stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/unix/stream.c b/src/unix/stream.c
index 080535e5..8137d24e 100644
--- a/src/unix/stream.c
+++ b/src/unix/stream.c
@@ -1119,7 +1119,7 @@ static void uv__stream_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
     return;
   }
 
-  if (events & UV__POLLIN) {
+  if (events & (UV__POLLIN | UV__POLLERR | UV__POLLHUP)) {
     assert(uv__stream_fd(stream) >= 0);
 
     uv__read(stream);