diff options
Diffstat (limited to 'src/rabbit_reader.erl')
| -rw-r--r-- | src/rabbit_reader.erl | 154 |
1 files changed, 56 insertions, 98 deletions
diff --git a/src/rabbit_reader.erl b/src/rabbit_reader.erl index 69dbc008..5cc98992 100644 --- a/src/rabbit_reader.erl +++ b/src/rabbit_reader.erl @@ -49,7 +49,6 @@ -define(HANDSHAKE_TIMEOUT, 10). -define(NORMAL_TIMEOUT, 3). -define(CLOSING_TIMEOUT, 1). --define(CHANNEL_CLOSING_TIMEOUT, 1). -define(CHANNEL_TERMINATION_TIMEOUT, 3). %--------------------------------------------------------------------------- @@ -94,23 +93,19 @@ %% -> log error, wait for channels to terminate forcefully, start %% terminate_connection timer, send close, *closed* %% channel exit with soft error -%% -> log error, start terminate_channel timer, mark channel as -%% closing, *running* -%% terminate_channel timeout -> remove 'closing' mark, *running* +%% -> log error, mark channel as closing, *running* %% handshake_timeout -> ignore, *running* %% heartbeat timeout -> *throw* %% closing: %% socket close -> *terminate* %% receive frame -> ignore, *closing* -%% terminate_channel timeout -> remove 'closing' mark, *closing* %% handshake_timeout -> ignore, *closing* %% heartbeat timeout -> *throw* %% channel exit with hard error %% -> log error, wait for channels to terminate forcefully, start %% terminate_connection timer, send close, *closed* %% channel exit with soft error -%% -> log error, start terminate_channel timer, mark channel as -%% closing +%% -> log error, mark channel as closing %% if last channel to exit then send connection.close_ok, %% start terminate_connection timer, *closed* %% else *closing* @@ -123,7 +118,6 @@ %% *closed* %% receive frame -> ignore, *closed* %% terminate_connection timeout -> *terminate* -%% terminate_channel timeout -> remove 'closing' mark, *closed* %% handshake_timeout -> ignore, *closed* %% heartbeat timeout -> *throw* %% channel exit -> log error, *closed* @@ -269,12 +263,10 @@ mainloop(Parent, Deb, State = #v1{sock= Sock, recv_ref = Ref}) -> throw({inet_error, Reason}); {'EXIT', Parent, Reason} -> if State#v1.connection_state =:= running -> - send_exception( - State, 0, - {amqp, connection_forced, - io_lib:format( - "broker forced connection closure with reason '~w'", - [Reason]), none}); + send_exception(State, 0, + rabbit_misc:amqp_error(connection_forced, + "broker forced connection closure with reason '~w'", + [Reason], none)); true -> ok end, %% this is what we are expected to do according to @@ -292,8 +284,6 @@ mainloop(Parent, Deb, State = #v1{sock= Sock, recv_ref = Ref}) -> mainloop(Parent, Deb, handle_channel_exit(Channel, Reason, State)); {'EXIT', Pid, Reason} -> mainloop(Parent, Deb, handle_dependent_exit(Pid, Reason, State)); - {terminate_channel, Channel, Ref1} -> - mainloop(Parent, Deb, terminate_channel(Channel, Ref1, State)); terminate_connection -> State; handshake_timeout -> @@ -341,32 +331,14 @@ close_connection(State = #v1{connection = #connection{ State#v1{connection_state = closed}. close_channel(Channel, State) -> - Ref = make_ref(), - TRef = erlang:send_after(1000 * ?CHANNEL_CLOSING_TIMEOUT, - self(), - {terminate_channel, Channel, Ref}), - put({closing_channel, Channel}, {Ref, TRef}), - State. - -terminate_channel(Channel, Ref, State) -> - case get({closing_channel, Channel}) of - undefined -> ok; %% got close_ok in the meantime - {Ref, _} -> erase({closing_channel, Channel}), - ok; - {_Ref, _} -> ok %% got close_ok, and have new closing channel - end, + put({channel, Channel}, closing), State. handle_channel_exit(Channel, Reason, State) -> - %% We remove the channel from the inbound map only. That allows - %% the channel to be re-opened, but also means the remaining - %% cleanup, including possibly closing the connection, is deferred - %% until we get the (normal) exit signal. - erase({channel, Channel}), handle_exception(State, Channel, Reason). handle_dependent_exit(Pid, normal, State) -> - channel_cleanup(Pid), + erase({chpid, Pid}), maybe_close(State); handle_dependent_exit(Pid, Reason, State) -> case channel_cleanup(Pid) of @@ -376,17 +348,10 @@ handle_dependent_exit(Pid, Reason, State) -> channel_cleanup(Pid) -> case get({chpid, Pid}) of - undefined -> - case get({closing_chpid, Pid}) of - undefined -> undefined; - {channel, Channel} -> - erase({closing_chpid, Pid}), - Channel - end; - {channel, Channel} -> - erase({channel, Channel}), - erase({chpid, Pid}), - Channel + undefined -> undefined; + {channel, Channel} -> erase({channel, Channel}), + erase({chpid, Pid}), + Channel end. all_channels() -> [Pid || {{chpid, Pid},_} <- get()]. @@ -451,7 +416,7 @@ handle_frame(_Type, _Channel, _Payload, State = #v1{connection_state = CS}) State; handle_frame(Type, 0, Payload, State) -> case analyze_frame(Type, Payload) of - error -> throw({unknown_frame, Type, Payload}); + error -> throw({unknown_frame, 0, Type, Payload}); heartbeat -> State; trace -> State; {method, MethodName, FieldsBin} -> @@ -460,20 +425,34 @@ handle_frame(Type, 0, Payload, State) -> end; handle_frame(Type, Channel, Payload, State) -> case analyze_frame(Type, Payload) of - error -> throw({unknown_frame, Type, Payload}); + error -> throw({unknown_frame, Channel, Type, Payload}); heartbeat -> throw({unexpected_heartbeat_frame, Channel}); trace -> throw({unexpected_trace_frame, Channel}); AnalyzedFrame -> %%?LOGDEBUG("Ch ~p Frame ~p~n", [Channel, AnalyzedFrame]), case get({channel, Channel}) of {chpid, ChPid} -> - ok = check_for_close(Channel, ChPid, AnalyzedFrame), + case AnalyzedFrame of + {method, 'channel.close', _} -> + erase({channel, Channel}); + _ -> ok + end, ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame), State; + closing -> + %% According to the spec, after sending a + %% channel.close we must ignore all frames except + %% channel.close_ok. + case AnalyzedFrame of + {method, 'channel.close_ok', _} -> + erase({channel, Channel}); + _ -> ok + end, + State; undefined -> case State#v1.connection_state of - running -> send_to_new_channel( - Channel, AnalyzedFrame, State), + running -> ok = send_to_new_channel( + Channel, AnalyzedFrame, State), State; Other -> throw({channel_frame_while_starting, Channel, Other, AnalyzedFrame}) @@ -567,17 +546,17 @@ handle_method0(MethodName, FieldsBin, State) -> MethodName, FieldsBin), State) catch exit:Reason -> - CompleteReason = - case Reason of - {amqp, Error, Explanation, none} -> - {amqp, Error, Explanation, MethodName}; - OtherReason -> OtherReason - end, + CompleteReason = case Reason of + #amqp_error{method = none} -> + Reason#amqp_error{method = MethodName}; + OtherReason -> OtherReason + end, case State#v1.connection_state of running -> send_exception(State, 0, CompleteReason); Other -> throw({channel0_error, Other, CompleteReason}) end end. + handle_method0(#'connection.start_ok'{mechanism = Mechanism, response = Response}, State = #v1{connection_state = starting, @@ -703,7 +682,7 @@ i(channels, #v1{}) -> i(user, #v1{connection = #connection{user = #user{username = Username}}}) -> Username; i(user, #v1{connection = #connection{user = none}}) -> - none; + ''; i(vhost, #v1{connection = #connection{vhost = VHost}}) -> VHost; i(timeout, #v1{connection = #connection{timeout_sec = Timeout}}) -> @@ -716,38 +695,17 @@ i(Item, #v1{}) -> %%-------------------------------------------------------------------------- send_to_new_channel(Channel, AnalyzedFrame, State) -> - case get({closing_channel, Channel}) of - undefined -> - #v1{sock = Sock, - connection = #connection{ - frame_max = FrameMax, - user = #user{username = Username}, - vhost = VHost}} = State, - WriterPid = rabbit_writer:start(Sock, Channel, FrameMax), - ChPid = rabbit_framing_channel:start_link( - fun rabbit_channel:start_link/5, - [Channel, self(), WriterPid, Username, VHost]), - put({channel, Channel}, {chpid, ChPid}), - put({chpid, ChPid}, {channel, Channel}), - ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame); - {_, TRef} -> - %% According to the spec, after sending a channel.close we - %% must ignore all frames except channel.close_ok. - case AnalyzedFrame of - {method, 'channel.close_ok', _} -> - erlang:cancel_timer(TRef), - erase({closing_channel, Channel}), - ok; - _Other -> ok - end - end. - -check_for_close(Channel, ChPid, {method, 'channel.close', _}) -> - channel_cleanup(ChPid), - put({closing_chpid, ChPid}, {channel, Channel}), - ok; -check_for_close(_Channel, _ChPid, _Frame) -> - ok. + #v1{sock = Sock, connection = #connection{ + frame_max = FrameMax, + user = #user{username = Username}, + vhost = VHost}} = State, + WriterPid = rabbit_writer:start(Sock, Channel, FrameMax), + ChPid = rabbit_framing_channel:start_link( + fun rabbit_channel:start_link/5, + [Channel, self(), WriterPid, Username, VHost]), + put({channel, Channel}, {chpid, ChPid}), + put({chpid, ChPid}, {channel, Channel}), + ok = rabbit_framing_channel:process(ChPid, AnalyzedFrame). log_channel_error(ConnectionState, Channel, Reason) -> rabbit_log:error("connection ~p (~p), channel ~p - error:~n~p~n", @@ -793,18 +751,18 @@ map_exception(Channel, Reason) -> end, {ShouldClose, CloseChannel, CloseMethod}. -lookup_amqp_exception({amqp, {ShouldClose, Code, Text}, Expl, Method}) -> +lookup_amqp_exception( + #amqp_error{name = Name, explanation = Expl, method = Method}) -> + {ShouldClose, Code, Text} = rabbit_framing:lookup_amqp_exception(Name), ExplBin = list_to_binary(Expl), CompleteTextBin = <<Text/binary, " - ", ExplBin/binary>>, SafeTextBin = if size(CompleteTextBin) > 255 -> <<CompleteTextBin:252/binary, "...">>; - true -> - CompleteTextBin + true -> CompleteTextBin end, {ShouldClose, Code, SafeTextBin, Method}; -lookup_amqp_exception({amqp, ErrorName, Expl, Method}) -> - Details = rabbit_framing:lookup_amqp_exception(ErrorName), - lookup_amqp_exception({amqp, Details, Expl, Method}); lookup_amqp_exception(Other) -> rabbit_log:warning("Non-AMQP exit reason '~p'~n", [Other]), - {true, ?INTERNAL_ERROR, <<"INTERNAL_ERROR">>, none}. + {ShouldClose, Code, Text} = + rabbit_framing:lookup_amqp_exception(internal_error), + {ShouldClose, Code, Text, none}. |