From a996e168bfebe599cfe393cd132a87984d905d84 Mon Sep 17 00:00:00 2001 From: Sverker Eriksson Date: Thu, 13 Mar 2014 15:23:44 +0100 Subject: erts: Add distribution capability flag for maps DFLAG_MAP_TAG This is just a preparation to allow detection of older nodes that do not understand maps (R16 and older). --- lib/kernel/include/dist.hrl | 3 ++- lib/kernel/src/dist_util.erl | 5 +++-- 2 files changed, 5 insertions(+), 3 deletions(-) (limited to 'lib/kernel') diff --git a/lib/kernel/include/dist.hrl b/lib/kernel/include/dist.hrl index e32c112e63..77556d1303 100644 --- a/lib/kernel/include/dist.hrl +++ b/lib/kernel/include/dist.hrl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2013. All Rights Reserved. +%% Copyright Ericsson AB 1999-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -37,3 +37,4 @@ -define(DFLAG_DIST_HDR_ATOM_CACHE,16#2000). -define(DFLAG_SMALL_ATOM_TAGS, 16#4000). -define(DFLAG_UTF8_ATOMS, 16#10000). +-define(DFLAG_MAP_TAG, 16#20000). diff --git a/lib/kernel/src/dist_util.erl b/lib/kernel/src/dist_util.erl index fc50ec6717..b127fe2e33 100644 --- a/lib/kernel/src/dist_util.erl +++ b/lib/kernel/src/dist_util.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2013. All Rights Reserved. +%% Copyright Ericsson AB 1999-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -116,7 +116,8 @@ make_this_flags(RequestType, OtherNode) -> ?DFLAG_UNICODE_IO bor ?DFLAG_DIST_HDR_ATOM_CACHE bor ?DFLAG_SMALL_ATOM_TAGS bor - ?DFLAG_UTF8_ATOMS). + ?DFLAG_UTF8_ATOMS bor + ?DFLAG_MAP_TAG). handshake_other_started(#hs_data{request_type=ReqType}=HSData0) -> {PreOtherFlags,Node,Version} = recv_name(HSData0), -- cgit v1.2.3