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Fix concurrent body streaming getting stuck with HTTP/2

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Loïc Hoguin 2020-07-03 11:02:59 +02:00
parent 5aac00d60c
commit 03d306e6d1
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2 changed files with 16 additions and 2 deletions
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8
src/cowboy_stream_h.erl
View file

@ -235,9 +235,13 @@ info(StreamID, Data0={data, Pid, _, _}, State0=#state{stream_body_status=Status}
end,
Data = erlang:delete_element(2, Data0),
do_info(StreamID, Data, [Data], State);
info(StreamID, Alarm={alarm, Name, on}, State)
info(StreamID, Alarm={alarm, Name, on}, State0=#state{stream_body_status=Status})
when Name =:= connection_buffer_full; Name =:= stream_buffer_full ->
do_info(StreamID, Alarm, [], State#state{stream_body_status=blocking});
State = case Status of
normal -> State0#state{stream_body_status=blocking};
_ -> State0
end,
do_info(StreamID, Alarm, [], State);
info(StreamID, Alarm={alarm, Name, off}, State=#state{stream_body_pid=Pid, stream_body_status=Status})
when Name =:= connection_buffer_full; Name =:= stream_buffer_full ->
_ = case Status of

10
test/req_SUITE.erl
View file

@ -1012,6 +1012,16 @@ stream_body_content_length_nofin_error(Config) ->
ok
end.
stream_body_concurrent(Config) ->
ConnPid = gun_open(Config),
Ref1 = gun:get(ConnPid, "/resp/stream_body/loop", [{<<"accept-encoding">>, <<"gzip">>}]),
Ref2 = gun:get(ConnPid, "/resp/stream_body/loop", [{<<"accept-encoding">>, <<"gzip">>}]),
{response, nofin, 200, _} = gun:await(ConnPid, Ref1, infinity),
{ok, _} = gun:await_body(ConnPid, Ref1, infinity),
{response, nofin, 200, _} = gun:await(ConnPid, Ref2, infinity),
{ok, _} = gun:await_body(ConnPid, Ref2, infinity),
gun:close(ConnPid).
%% @todo Crash when calling stream_body after the fin flag has been set.
%% @todo Crash when calling stream_body after calling reply.
%% @todo Crash when calling stream_body before calling stream_reply.