From 4b97ff92a8d2d429370da40c9845199c2a68f12d Mon Sep 17 00:00:00 2001
From: Boshan Sun <boshan@subsplash.com>
Date: Thu, 22 Mar 2018 19:47:04 -0700
Subject: Fix sys's debug statistics.

Currently, in sys:stat/2, the message out only count for system events with format
{out, Msg, To}. However, the gen_server:reply/5 will call sys:handle_debug/4
with format {out, Reply, To, State}. That will make the message out count fail
to pattern matching.

Also update sys_SUITE.erl and relevant docs.
---
 system/doc/design_principles/spec_proc.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system')

diff --git a/system/doc/design_principles/spec_proc.xml b/system/doc/design_principles/spec_proc.xml
index 5f4e7ac685..f910c3dba3 100644
--- a/system/doc/design_principles/spec_proc.xml
+++ b/system/doc/design_principles/spec_proc.xml
@@ -312,7 +312,7 @@ sys:handle_debug(Deb, Func, Info, Event) => Deb1</code>
             define what a system event is and how it is to be
             represented. Typically at least incoming and outgoing
             messages are considered system events and represented by
-            the tuples <c>{in,Msg[,From]}</c> and <c>{out,Msg,To}</c>,
+            the tuples <c>{in,Msg[,From]}</c> and <c>{out,Msg,To[,State]}</c>,
             respectively.</item>
       </list>
       <p><c>handle_debug</c> returns an updated debug structure
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