From 081f3c173fc4efe83efbb2fb33d92ec6f31af74b Mon Sep 17 00:00:00 2001 From: Hans Nilsson Date: Wed, 3 May 2017 18:44:44 +0200 Subject: inets: Try fix ftp recv_chunk timing issue --- lib/inets/src/ftp/ftp.erl | 53 +++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 49 insertions(+), 4 deletions(-) (limited to 'lib') diff --git a/lib/inets/src/ftp/ftp.erl b/lib/inets/src/ftp/ftp.erl index 2a225e930e..e0430654eb 100644 --- a/lib/inets/src/ftp/ftp.erl +++ b/lib/inets/src/ftp/ftp.erl @@ -100,6 +100,12 @@ ftp_extension = ?FTP_EXT_DEFAULT }). +-record(recv_chunk_closing, { + dconn_closed = false, + pos_compl_received = false, + client_called_us = false + }). + -type shortage_reason() :: 'etnospc' | 'epnospc'. -type restriction_reason() :: 'epath' | 'efnamena' | 'elogin' | 'enotbinary'. @@ -1343,6 +1349,25 @@ handle_call({_,{recv_chunk_start, RemoteFile}}, From, #state{chunk = false} handle_call({_, recv_chunk}, _, #state{chunk = false} = State) -> {reply, {error, "ftp:recv_chunk_start/2 not called"}, State}; +handle_call({_, recv_chunk}, _From, #state{chunk = true, + caller = #recv_chunk_closing{dconn_closed = true, + pos_compl_received = true + } + } = State0) -> + %% The ftp:recv_chunk call was the last event we waited for, finnish and clean up + ?DBG("recv_chunk_closing ftp:recv_chunk, last event",[]), + activate_ctrl_connection(State0), + {reply, ok, State0#state{caller = undefined, + chunk = false, + client = undefined}}; + +handle_call({_, recv_chunk}, From, #state{chunk = true, + caller = #recv_chunk_closing{} = R + } = State) -> + %% Waiting for more, don't care what + ?DBG("recv_chunk_closing ftp:recv_chunk, get more",[]), + {noreply, State#state{client = From, caller = R#recv_chunk_closing{client_called_us=true}}}; + handle_call({_, recv_chunk}, From, #state{chunk = true} = State0) -> State = activate_data_connection(State0), {noreply, State#state{client = From, caller = recv_chunk}}; @@ -1480,19 +1505,24 @@ handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket}, file_close(Fd), progress_report({transfer_size, 0}, State), activate_ctrl_connection(State), + ?DBG("Data channel close",[]), {noreply, State#state{dsock = undefined, data = <<>>}}; handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket}, + client = Client, caller = recv_chunk} = State) when {Cls,Trpt}=={tcp_closed,tcp} ; {Cls,Trpt}=={ssl_closed,ssl} -> + ?DBG("Data channel close recv_chunk",[]), activate_ctrl_connection(State), - {noreply, State#state{dsock = undefined, data = <<>>, - caller = recv_chunk_closed + {noreply, State#state{dsock = undefined, + caller = #recv_chunk_closing{dconn_closed = true, + client_called_us = Client =/= undefined} }}; handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket}, caller = recv_bin, data = Data} = State) when {Cls,Trpt}=={tcp_closed,tcp} ; {Cls,Trpt}=={ssl_closed,ssl} -> + ?DBG("Data channel close",[]), activate_ctrl_connection(State), {noreply, State#state{dsock = undefined, data = <<>>, caller = {recv_bin, Data}}}; @@ -1500,6 +1530,7 @@ handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket}, caller = recv_bin, handle_info({Cls, Socket}, #state{dsock = {Trpt,Socket}, data = Data, caller = {handle_dir_result, Dir}} = State) when {Cls,Trpt}=={tcp_closed,tcp} ; {Cls,Trpt}=={ssl_closed,ssl} -> + ?DBG("Data channel close",[]), activate_ctrl_connection(State), {noreply, State#state{dsock = undefined, caller = {handle_dir_result, Dir, Data}, @@ -2047,14 +2078,28 @@ handle_ctrl_result({pos_prel, _}, #state{client = From, %%-------------------------------------------------------------------------- %% File handling - chunk_transfer complete + handle_ctrl_result({pos_compl, _}, #state{client = From, - caller = recv_chunk_closed} - = State0) -> + caller = #recv_chunk_closing{dconn_closed = true, + client_called_us = true, + pos_compl_received = false + }} + = State0) when From =/= undefined -> + %% The pos_compl was the last event we waited for, finnish and clean up + ?DBG("recv_chunk_closing pos_compl, last event",[]), gen_server:reply(From, ok), + activate_ctrl_connection(State0), {noreply, State0#state{caller = undefined, chunk = false, client = undefined}}; +handle_ctrl_result({pos_compl, _}, #state{caller = #recv_chunk_closing{}=R} + = State0) -> + %% Waiting for more, don't care what + ?DBG("recv_chunk_closing pos_compl, wait more",[]), + {noreply, State0#state{caller = R#recv_chunk_closing{pos_compl_received=true}}}; + + %%-------------------------------------------------------------------------- %% File handling - recv_file handle_ctrl_result({pos_prel, _}, #state{caller = {recv_file, _}} = State0) -> -- cgit v1.2.3 From 98a9c17063097865d7bf2f69e19f1ab85d1cc180 Mon Sep 17 00:00:00 2001 From: Hans Nilsson Date: Thu, 4 May 2017 18:17:30 +0200 Subject: inets: add testcase to ftp_SUITE Try doing three consecutive chunked receive with some changed timing in the ending sequence --- lib/inets/test/ftp_SUITE.erl | 51 +++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 48 insertions(+), 3 deletions(-) (limited to 'lib') diff --git a/lib/inets/test/ftp_SUITE.erl b/lib/inets/test/ftp_SUITE.erl index d37f2feb7e..1a79cb58ed 100644 --- a/lib/inets/test/ftp_SUITE.erl +++ b/lib/inets/test/ftp_SUITE.erl @@ -97,6 +97,7 @@ ftp_tests()-> recv_bin_twice, recv_chunk, recv_chunk_twice, + recv_chunk_three_times, type, quote, error_elogin, @@ -626,13 +627,57 @@ recv_chunk_twice(Config0) -> find_diff(ReceivedContents1, Contents1), find_diff(ReceivedContents2, Contents2). +recv_chunk_three_times() -> + [{doc, "Receive two files using chunk-wise."}, + {timetrap,{seconds,120}}]. +recv_chunk_three_times(Config0) -> + File1 = "big_file1.txt", + File2 = "big_file2.txt", + File3 = "big_file3.txt", + Contents1 = list_to_binary( lists:duplicate(1000, lists:seq(0,255)) ), + Contents2 = crypto:strong_rand_bytes(1200), + Contents3 = list_to_binary( lists:duplicate(1000, lists:seq(255,0,-1)) ), + + Config = set_state([reset, {mkfile,File1,Contents1}, {mkfile,File2,Contents2}, {mkfile,File3,Contents3}], Config0), + Pid = proplists:get_value(ftp, Config), + {{error, "ftp:recv_chunk_start/2 not called"},_} = recv_chunk(Pid, <<>>), + + ok = ftp:recv_chunk_start(Pid, id2ftp(File1,Config)), + {ok, ReceivedContents1, Nchunks1} = recv_chunk(Pid, <<>>), + + ok = ftp:recv_chunk_start(Pid, id2ftp(File2,Config)), + {ok, ReceivedContents2, _Nchunks2} = recv_chunk(Pid, <<>>), + + ok = ftp:recv_chunk_start(Pid, id2ftp(File3,Config)), + {ok, ReceivedContents3, _Nchunks3} = recv_chunk(Pid, <<>>, 10000, 0, Nchunks1), + + find_diff(ReceivedContents1, Contents1), + find_diff(ReceivedContents2, Contents2), + find_diff(ReceivedContents3, Contents3). + + + recv_chunk(Pid, Acc) -> - recv_chunk(Pid, Acc, 0). + recv_chunk(Pid, Acc, 0, 0, undefined). + + + +%% ExpectNchunks :: integer() | undefined +recv_chunk(Pid, Acc, DelayMilliSec, N, ExpectNchunks) when N+1 < ExpectNchunks -> + %% for all I in integer(), I < undefined + recv_chunk1(Pid, Acc, DelayMilliSec, N, ExpectNchunks); + +recv_chunk(Pid, Acc, DelayMilliSec, N, ExpectNchunks) -> + %% N >= ExpectNchunks-1 + timer:sleep(DelayMilliSec), + recv_chunk1(Pid, Acc, DelayMilliSec, N, ExpectNchunks). + -recv_chunk(Pid, Acc, N) -> +recv_chunk1(Pid, Acc, DelayMilliSec, N, ExpectNchunks) -> + ct:log("Call ftp:recv_chunk",[]), case ftp:recv_chunk(Pid) of ok -> {ok, Acc, N}; - {ok, Bin} -> recv_chunk(Pid, <>, N+1); + {ok, Bin} -> recv_chunk(Pid, <>, DelayMilliSec, N+1, ExpectNchunks); Error -> {Error, N} end. -- cgit v1.2.3