From 78fad16ef7c5477239bc0b51125fabfe6567039d Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Fri, 30 Jun 2017 16:32:42 +0200 Subject: Support for distribution controller processes --- lib/kernel/src/dist_util.erl | 62 +++++++++++++++++++++++-------------------- lib/kernel/src/net_kernel.erl | 4 +-- 2 files changed, 35 insertions(+), 31 deletions(-) (limited to 'lib/kernel/src') diff --git a/lib/kernel/src/dist_util.erl b/lib/kernel/src/dist_util.erl index b3507e5d13..81dbf442d1 100644 --- a/lib/kernel/src/dist_util.erl +++ b/lib/kernel/src/dist_util.erl @@ -336,15 +336,11 @@ handshake_we_started(#hs_data{request_type=ReqType, handshake_we_started(OldHsData) when element(1,OldHsData) =:= hs_data -> handshake_we_started(convert_old_hsdata(OldHsData)). -convert_old_hsdata({hs_data, KP, ON, TN, S, T, TF, A, OV, OF, OS, FS, FR, - FS_PRE, FS_POST, FG, FA, MFT, MFG, RT}) -> - #hs_data{ - kernel_pid = KP, other_node = ON, this_node = TN, socket = S, timer = T, - this_flags = TF, allowed = A, other_version = OV, other_flags = OF, - other_started = OS, f_send = FS, f_recv = FR, f_setopts_pre_nodeup = FS_PRE, - f_setopts_post_nodeup = FS_POST, f_getll = FG, f_address = FA, - mf_tick = MFT, mf_getstat = MFG, request_type = RT}. - +convert_old_hsdata(OldHsData) -> + OHSDL = tuple_to_list(OldHsData), + NoMissing = tuple_size(#hs_data{}) - tuple_size(OldHsData), + true = NoMissing > 0, + list_to_tuple(OHSDL ++ lists:duplicate(NoMissing, undefined)). %% -------------------------------------------------------------- %% The connection has been established. @@ -359,15 +355,20 @@ connection(#hs_data{other_node = Node, PType = publish_type(HSData#hs_data.other_flags), case FPreNodeup(Socket) of ok -> - do_setnode(HSData), % Succeeds or exits the process. + DHandle = do_setnode(HSData), % Succeeds or exits the process. Address = FAddress(Socket,Node), mark_nodeup(HSData,Address), case FPostNodeup(Socket) of ok -> + case HSData#hs_data.f_handshake_complete of + undefined -> ok; + HsComplete -> HsComplete(Socket, Node, DHandle) + end, con_loop({HSData#hs_data.kernel_pid, Node, Socket, PType, + DHandle, HSData#hs_data.mf_tick, HSData#hs_data.mf_getstat, HSData#hs_data.mf_setopts, @@ -425,18 +426,16 @@ do_setnode(#hs_data{other_node = Node, socket = Socket, [Node, Port, {publish_type(Flags), '(', Flags, ')', Version}]), - case (catch - erlang:setnode(Node, Port, - {Flags, Version, '', ''})) of - {'EXIT', {system_limit, _}} -> + try + erlang:setnode(Node, Port, {Flags, Version, '', ''}) + catch + error:system_limit -> error_msg("** Distribution system limit reached, " "no table space left for node ~w ** ~n", [Node]), ?shutdown(Node); - {'EXIT', Other} -> - exit(Other); - _Else -> - ok + error:Other -> + exit({Other, erlang:get_stacktrace()}) end; _ -> error_msg("** Distribution connection error, " @@ -468,7 +467,13 @@ mark_nodeup(#hs_data{kernel_pid = Kernel, ?shutdown(Node) end. -con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=ConData, +getstat(DHandle, _Socket, undefined) -> + erlang:dist_get_stat(DHandle); +getstat(_DHandle, Socket, MFGetstat) -> + MFGetstat(Socket). + +con_loop({Kernel, Node, Socket, Type, DHandle, MFTick, MFGetstat, + MFSetOpts, MFGetOpts}=ConData, Tick) -> receive {tcp_closed, Socket} -> @@ -476,7 +481,7 @@ con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=C {Kernel, disconnect} -> ?shutdown2(Node, disconnected); {Kernel, aux_tick} -> - case MFGetstat(Socket) of + case getstat(DHandle, Socket, MFGetstat) of {ok, _, _, PendWrite} -> send_tick(Socket, PendWrite, MFTick); _ -> @@ -484,7 +489,7 @@ con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=C end, con_loop(ConData, Tick); {Kernel, tick} -> - case send_tick(Socket, Tick, Type, + case send_tick(DHandle, Socket, Tick, Type, MFTick, MFGetstat) of {ok, NewTick} -> con_loop(ConData, NewTick); @@ -497,7 +502,7 @@ con_loop({Kernel, Node, Socket, Type, MFTick, MFGetstat, MFSetOpts, MFGetOpts}=C ?shutdown2(Node, send_net_tick_failed) end; {From, get_status} -> - case MFGetstat(Socket) of + case getstat(DHandle, Socket, MFGetstat) of {ok, Read, Write, _} -> From ! {self(), get_status, {ok, Read, Write}}, con_loop(ConData, Tick); @@ -735,14 +740,14 @@ send_status(#hs_data{socket = Socket, other_node = Node, %% we haven't read anything as a hidden node only ticks when it receives %% a TICK !! -send_tick(Socket, Tick, Type, MFTick, MFGetstat) -> +send_tick(DHandle, Socket, Tick, Type, MFTick, MFGetstat) -> #tick{tick = T0, read = Read, write = Write, ticked = Ticked} = Tick, T = T0 + 1, T1 = T rem 4, - case MFGetstat(Socket) of + case getstat(DHandle, Socket, MFGetstat) of {ok, Read, _, _} when Ticked =:= T -> {error, not_responding}; {ok, Read, W, Pend} when Type =:= hidden -> @@ -771,11 +776,10 @@ send_tick(Socket, Tick, Type, MFTick, MFGetstat) -> Error end. -send_tick(Socket, 0, MFTick) -> - MFTick(Socket); -send_tick(_, _Pend, _) -> - %% Dont send tick if pending write. - ok. +send_tick(_, Pend, _) when Pend /= false, Pend /= 0 -> + ok; %% Dont send tick if pending write. +send_tick(Socket, _Pend, MFTick) -> + MFTick(Socket). %% ------------------------------------------------------------ %% Connection setup timeout timer. diff --git a/lib/kernel/src/net_kernel.erl b/lib/kernel/src/net_kernel.erl index ddda396713..fb4faea420 100644 --- a/lib/kernel/src/net_kernel.erl +++ b/lib/kernel/src/net_kernel.erl @@ -423,8 +423,8 @@ handle_call({connect, Type, Node}, From, State) -> {ok, SetupPid} -> Owners = [{SetupPid, Node} | State#state.conn_owners], {noreply,State#state{conn_owners=Owners}}; - _ -> - ?connect_failure(Node, {setup_call, failed}), + _Error -> + ?connect_failure(Node, {setup_call, failed, _Error}), async_reply({reply, false, State}, From) end end; -- cgit v1.2.3