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authorPeter Andersson <[email protected]>2014-03-21 14:34:56 +0100
committerPeter Andersson <[email protected]>2014-03-22 00:08:08 +0100
commit72f9cd7ce17eaa9e6b69b380b74b0860a614ce4f (patch)
tree19b8c94c9bf8cef632a54a774c20081f12e6fd26 /lib
parent3c06b5b3cdde72453d97910889e38e91c1dd4870 (diff)
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Introduce total timeout value in ct_telnet:expect/3 options
OTP-11689
Diffstat (limited to 'lib')
-rw-r--r--lib/common_test/src/ct_telnet.erl74
1 files changed, 52 insertions, 22 deletions
diff --git a/lib/common_test/src/ct_telnet.erl b/lib/common_test/src/ct_telnet.erl
index 8c3ce03732..0a067b3a08 100644
--- a/lib/common_test/src/ct_telnet.erl
+++ b/lib/common_test/src/ct_telnet.erl
@@ -413,9 +413,11 @@ expect(Connection,Patterns) ->
%%% Prompt = string()
%%% Tag = term()
%%% Opts = [Opt]
-%%% Opt = {timeout,Timeout} | repeat | {repeat,N} | sequence |
-%%% {halt,HaltPatterns} | ignore_prompt | no_prompt_check
-%%% Timeout = integer()
+%%% Opt = {idle_timeout,IdleTimeout} | {total_timeout,TotalTimeout} |
+%%% repeat | {repeat,N} | sequence | {halt,HaltPatterns} |
+%%% ignore_prompt | no_prompt_check
+%%% IdleTimeout = infinity | integer()
+%%% TotalTimeout = infinity | integer()
%%% N = integer()
%%% HaltPatterns = Patterns
%%% MatchList = [Match]
@@ -441,11 +443,16 @@ expect(Connection,Patterns) ->
%%% will also include the matched <code>Tag</code>. Else, only
%%% <code>RxMatch</code> is returned.</p>
%%%
-%%% <p>The <code>timeout</code> option indicates that the function
+%%% <p>The <code>idle_timeout</code> option indicates that the function
%%% shall return if the telnet client is idle (i.e. if no data is
-%%% received) for more than <code>Timeout</code> milliseconds. Default
+%%% received) for more than <code>IdleTimeout</code> milliseconds. Default
%%% timeout is 10 seconds.</p>
%%%
+%%% <p>The <code>total_timeout</code> option sets a time limit for
+%%% the complete expect operation. After <code>TotalTimeout</code>
+%%% milliseconds, <code>{error,timeout}</code> is returned. The default
+%%% value is <code>infinity</code> (i.e. no time limit).</p>
+%%%
%%% <p>The function will always return when a prompt is found, unless
%%% any of the <code>ignore_prompt</code> or
%%% <code>no_prompt_check</code> options are used, in which case it
@@ -578,14 +585,14 @@ handle_msg({cmd,Cmd,Timeout},State) ->
State#state.buffer,
prompt,
State#state.prx,
- [{timeout,2000}]);
+ [{idle_timeout,2000}]);
{ip,false} ->
silent_teln_expect(State#state.name,
State#state.teln_pid,
State#state.buffer,
prompt,
State#state.prx,
- [{timeout,200}]);
+ [{idle_timeout,200}]);
{ip,true} ->
ok
end,
@@ -619,14 +626,14 @@ handle_msg({send,Cmd},State) ->
State#state.buffer,
prompt,
State#state.prx,
- [{timeout,2000}]);
+ [{idle_timeout,2000}]);
{ip,false} ->
silent_teln_expect(State#state.name,
State#state.teln_pid,
State#state.buffer,
prompt,
State#state.prx,
- [{timeout,200}]);
+ [{idle_timeout,200}]);
{ip,true} ->
ok
end,
@@ -880,7 +887,8 @@ teln_get_all_data(Pid,Prx,Data,Acc,LastLine) ->
%% Expect options record
-record(eo,{teln_pid,
prx,
- timeout,
+ idle_timeout,
+ total_timeout,
haltpatterns=[],
seq=false,
repeat=false,
@@ -922,11 +930,12 @@ teln_expect(Name,Pid,Data,Pattern0,Prx,Opts) ->
Seq = get_seq(Opts),
Pattern = convert_pattern(Pattern0,Seq),
- Timeout = get_timeout(Opts),
+ {IdleTimeout,TotalTimeout} = get_timeouts(Opts),
EO = #eo{teln_pid=Pid,
prx=Prx,
- timeout=Timeout,
+ idle_timeout=IdleTimeout,
+ total_timeout=TotalTimeout,
seq=Seq,
haltpatterns=HaltPatterns,
prompt_check=PromptCheck},
@@ -965,11 +974,22 @@ rm_dupl([P|Ps],Acc) ->
rm_dupl([],Acc) ->
lists:reverse(Acc).
-get_timeout(Opts) ->
- case lists:keysearch(timeout,1,Opts) of
- {value,{timeout,T}} -> T;
- false -> ?DEFAULT_TIMEOUT
- end.
+get_timeouts(Opts) ->
+ {case lists:keysearch(idle_timeout,1,Opts) of
+ {value,{_,T}} ->
+ T;
+ false ->
+ %% this check is for backwards compatibility (pre CT v1.8)
+ case lists:keysearch(timeout,1,Opts) of
+ {value,{_,T}} -> T;
+ false -> ?DEFAULT_TIMEOUT
+ end
+ end,
+ case lists:keysearch(total_timeout,1,Opts) of
+ {value,{_,T}} -> T;
+ false -> infinity
+ end}.
+
get_repeat(Opts) ->
case lists:keysearch(repeat,1,Opts) of
{value,{repeat,N}} when is_integer(N) ->
@@ -1011,7 +1031,8 @@ repeat_expect(Name,Pid,Data,Pattern,Acc,EO) ->
{error,Reason}
end.
-teln_expect1(Name,Pid,Data,Pattern,Acc,EO) ->
+teln_expect1(Name,Pid,Data,Pattern,Acc,EO=#eo{idle_timeout=IdleTO,
+ total_timeout=TotalTO}) ->
ExpectFun = case EO#eo.seq of
true -> fun() ->
seq_expect(Name,Pid,Data,Pattern,Acc,EO)
@@ -1028,17 +1049,26 @@ teln_expect1(Name,Pid,Data,Pattern,Acc,EO) ->
NotFinished ->
%% Get more data
Fun = fun() -> get_data1(EO#eo.teln_pid) end,
- case timer:tc(ct_gen_conn, do_within_time, [Fun, EO#eo.timeout]) of
+ case timer:tc(ct_gen_conn, do_within_time, [Fun, IdleTO]) of
{_,{error,Reason}} ->
%% A timeout will occur when the telnet connection
- %% is idle for EO#eo.timeout milliseconds.
+ %% is idle for EO#eo.idle_timeout milliseconds.
{error,Reason};
+ {_,{ok,Data1}} when TotalTO == infinity ->
+ case NotFinished of
+ {nomatch,Rest} ->
+ %% One expect
+ teln_expect1(Name,Pid,Rest++Data1,Pattern,[],EO);
+ {continue,Patterns1,Acc1,Rest} ->
+ %% Sequence
+ teln_expect1(Name,Pid,Rest++Data1,Patterns1,Acc1,EO)
+ end;
{Elapsed,{ok,Data1}} ->
- TVal = trunc(EO#eo.timeout - (Elapsed/1000)),
+ TVal = trunc(TotalTO - (Elapsed/1000)),
if TVal =< 0 ->
{error,timeout};
true ->
- EO1 = EO#eo{timeout = TVal},
+ EO1 = EO#eo{total_timeout = TVal},
case NotFinished of
{nomatch,Rest} ->
%% One expect