From 6e931258872c15404aa1dfd5198f2b490452b30b Mon Sep 17 00:00:00 2001
From: Micael Karlberg <bmk@erlang.org>
Date: Fri, 5 Oct 2018 14:52:47 +0200
Subject: [socket-nif] Add *preliminary* new function supports/0,1

---
 erts/preloaded/src/socket.erl | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'erts/preloaded')

diff --git a/erts/preloaded/src/socket.erl b/erts/preloaded/src/socket.erl
index c388fc2849..147d074310 100644
--- a/erts/preloaded/src/socket.erl
+++ b/erts/preloaded/src/socket.erl
@@ -27,6 +27,7 @@
 -export([
 	 on_load/0, on_load/1,
 	 info/0,
+         supports/0, supports/1,
          ensure_sockaddr/1
         ]).
 
@@ -843,6 +844,16 @@ info() ->
     nif_info().
 
 
+-spec supports() -> list().
+
+supports() ->
+    [{options, supports(options)}].
+
+supports(options) ->
+    nif_supports(?SOCKET_SUPPORTS_OPTIONS);
+supports(_) ->
+    false.
+
 
 %% ===========================================================================
 %%
@@ -3417,6 +3428,9 @@ error(Reason) ->
 nif_info() ->
     erlang:nif_error(undef).
 
+nif_supports(_Key) ->
+    erlang:nif_error(undef).
+
 nif_open(_Domain, _Type, _Protocol, _Extra) ->
     erlang:nif_error(undef).
 
-- 
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