From b18c28c0566c71725891cf1499e82c98dd581ac7 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Wed, 10 Aug 2016 20:55:31 +0200
Subject: net.server_epoll: Log epoll_ctl() calls and return values

---
 net/server_epoll.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/server_epoll.lua b/net/server_epoll.lua
index 57da4287..c450f658 100644
--- a/net/server_epoll.lua
+++ b/net/server_epoll.lua
@@ -216,6 +216,8 @@ function interface:setflags(r, w)
 		op = "add";
 	end
 	local ok, err = epoll.ctl(op, fd, flags);
+	log("debug", "epoll_ctl(%q, %d, %q) -> %s" .. (err and ", %q" or ""),
+		op, fd, flags or "", tostring(ok), err);
 	if not ok then return ok, err end
 	self._flags = flags;
 	return true;
-- 
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