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authorSiri Hansen <[email protected]>2016-06-05 13:30:55 +0200
committerSiri Hansen <[email protected]>2016-06-09 14:28:15 +0200
commit12573be47139eb40ec17b137808dcde929a00345 (patch)
tree4c987e54611d5147e38a4fa2e8cdb635c4814f81 /lib/common_test/test/telnet_server.erl
parent15ce292889054bc7514e7d1d1cb7c68c349d65bb (diff)
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[ct test] Flush messages from old client after close in telnet server
Since the same erlang process is used for subsequent telnet connections, messages from old clients must be flushed after close.
Diffstat (limited to 'lib/common_test/test/telnet_server.erl')
-rw-r--r--lib/common_test/test/telnet_server.erl42
1 files changed, 34 insertions, 8 deletions
diff --git a/lib/common_test/test/telnet_server.erl b/lib/common_test/test/telnet_server.erl
index 2c33cb268a..65300b0bdf 100644
--- a/lib/common_test/test/telnet_server.erl
+++ b/lib/common_test/test/telnet_server.erl
@@ -117,38 +117,64 @@ init_client(#state{client=Sock}=State) ->
dbg("Server sending: ~p~n",["login: "]),
R = case gen_tcp:send(Sock,"login: ") of
ok ->
- loop(State, 1);
+ loop(State);
Error ->
Error
end,
_ = gen_tcp:close(Sock),
R.
-loop(State, N) ->
+loop(State=#state{client=Sock}) ->
receive
- {tcp,_,Data} ->
+ {tcp,Sock,Data} ->
try handle_data(Data,State) of
{ok,State1} ->
- loop(State1, N);
+ loop(State1);
closed ->
+ _ = flush(State),
closed
catch
throw:Error ->
+ _ = flush(State),
Error
end;
- {tcp_closed, _} ->
+ {tcp_closed,Sock} ->
closed;
- {tcp_error,_,Error} ->
+ {tcp_error,Sock,Error} ->
{error,tcp,Error};
disconnect ->
- Sock = State#state.client,
dbg("Server closing connection on socket ~p~n", [Sock]),
+ timer:sleep(1000),
ok = gen_tcp:close(Sock),
- closed;
+ _ = flush(State);
stop ->
+ _ = flush(State),
stopped
end.
+flush(State=#state{client=Sock}) ->
+ receive
+ {tcp,Sock,Data} = M->
+ dbg("Message flushed after close or error: ~p~n", [M]),
+ try handle_data(Data,State) of
+ {ok,State1} ->
+ flush(State1);
+ closed ->
+ flush(State)
+ catch
+ throw:Error ->
+ Error
+ end;
+ {tcp_closed,Sock} = M ->
+ dbg("Message flushed after close or error: ~p~n", [M]),
+ ok;
+ {tcp_error,Sock,Error} = M ->
+ dbg("Message flushed after close or error: ~p~n", [M]),
+ {error,tcp,Error}
+ after 100 ->
+ ok
+ end.
+
handle_data(Cmd,#state{break=true}=State) ->
dbg("Server got data when in break mode: ~p~n",[Cmd]),
handle_break_cmd(Cmd,State);