From 7231ee8eb29da0946792aef6ac155f9e31fb37ed Mon Sep 17 00:00:00 2001
From: Ben Murphy <benmmurphy@gmail.com>
Date: Tue, 9 Aug 2016 15:45:25 +0100
Subject: disable ctrl-s block node feature

(see: http://erlang.org/pipermail/erlang-patches/2010-March/000883.html)
---
 priv/templates/extended_bin | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'priv')

diff --git a/priv/templates/extended_bin b/priv/templates/extended_bin
index ddecc8b..2630bbf 100755
--- a/priv/templates/extended_bin
+++ b/priv/templates/extended_bin
@@ -2,6 +2,17 @@
 
 set -e
 
+# http://erlang.org/doc/man/run_erl.html
+# If defined, disables input and output flow control for the pty
+# opend by run_erl. Useful if you want to remove any risk of accidentally
+# blocking the flow control by using Ctrl-S (instead of Ctrl-D to detach),
+# which can result in blocking of the entire Beam process, and in the case
+# of running heart as supervisor even the heart process becomes blocked
+# when writing log message to terminal, leaving the heart process unable
+# to do its work.
+RUN_ERL_DISABLE_FLOWCNTRL=${RUN_ERL_DISABLE_FLOWCNTRL:-true}
+export $RUN_ERL_DISABLE_FLOWCNTRL
+
 SCRIPT=$(readlink $0 || true)
 if [ -z $SCRIPT ]; then
     SCRIPT=$0
-- 
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