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authorSverker Eriksson <[email protected]>2017-11-23 15:05:34 +0100
committerSverker Eriksson <[email protected]>2017-11-23 15:05:34 +0100
commit8ed0d75c186d9da24bd6cfb85732487b17a3b054 (patch)
treef458c4ef6fc080fe9859834cabe3e49d40da9908 /lib/kernel/test
parenta5aaba7c9a316327940d0b861dd300d59aa99209 (diff)
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erts: Fix erlang:monitor toward c-nodes
by suppressing DOP_MONITOR_P, DOP_MONITOR_P_EXIT and DOP_DEMONITOR_P if not supported by the remote node. In 17e198d6ee60f7dec9abfed272cf4226aea44535 I changed the behavior of erlang:monitor to not raise badarg for c-nodes but instead create a monitor to only supervise the connection. But I forgot to prevent DOP_MONITOR_P and friends from being sent to the node that does not expect them. Note: We test both DFLAG_DIST_MONITOR and DFLAG_DIST_MONITOR_NAME for the node to support process monitoring. This is because erl_interface is buggy as it sets DFLAG_DIST_MONITOR without really supporting it. ToDo: Should erl_interface stop setting DFLAG_DIST_MONITOR or should we change the meaning of these flags?
Diffstat (limited to 'lib/kernel/test')
-rw-r--r--lib/kernel/test/erl_distribution_wb_SUITE.erl2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/kernel/test/erl_distribution_wb_SUITE.erl b/lib/kernel/test/erl_distribution_wb_SUITE.erl
index 1145d30e5e..8256444bdc 100644
--- a/lib/kernel/test/erl_distribution_wb_SUITE.erl
+++ b/lib/kernel/test/erl_distribution_wb_SUITE.erl
@@ -677,6 +677,8 @@ build_rex_message(Cookie,OurName) ->
%% Receive a distribution message
recv_message(Socket) ->
case gen_tcp:recv(Socket, 0) of
+ {ok,[]} ->
+ recv_message(Socket); %% a tick, ignore
{ok,Data} ->
B0 = list_to_binary(Data),
<<?PASS_THROUGH, B1/binary>> = B0,