From ac8c536b50a9e80a18c233f1dd9948578c2aa071 Mon Sep 17 00:00:00 2001
From: Pablo Polvorin <pablo.polvorin@process-one.net>
Date: Fri, 9 Nov 2012 16:57:23 -0300
Subject: Improvement

Force the binary to be a heap binary, rather than
keeping it as a refcount or sub-binary
---
 src/stringprep/stringprep.erl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/stringprep/stringprep.erl b/src/stringprep/stringprep.erl
index 9458af58e..8bbc5d213 100644
--- a/src/stringprep/stringprep.erl
+++ b/src/stringprep/stringprep.erl
@@ -101,5 +101,8 @@ resourceprep(String) ->
 control(Command, String) ->
     case port_control(?STRINGPREP_PORT, Command, String) of
       <<0, _/binary>> -> error;
-      <<1, Res/binary>> -> Res
+      <<1, Res/binary>> -> binary:copy(Res)  
+		%% Result is usually a very small binary,  that fit into a heap binary.
+		%% binary:copy() ensure that's the case,  instead of keeping a subbinary or
+		%% refcount binary around 
     end.
-- 
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