[Tsung] Use of ts_file_server for input data stream

[Nicolas Niclausse]

Pentti Kavanagh wrote:
> Hi,
> 
> I'm trying out Tsung for the first time and have a query regarding the
> use of ts_file_server.  I have a csv file from which I'm reading user
> and account ids.   I would like to use the data from a single row
> multiple times within a session. 

> Within a session I use user(Pid) to get the login details, and then
> currentaccount(Pid) for subsequent substitutions in the same session
> where I need the account number.  This seems to work fine, but could
> this be done a better way (ie. using dynamic variables for example)?


hmm, it's not currently possible to set a new dyn variable within a
function called in a substitution

> If my solution is ok, then maybe it would be worth including
> get_current_line() in ts_file_server as a standard feature.

I think your code doesn't work (you can get a wrong account) if you have
concurrent sessions.

A quick & dirty solution is to use the process dictionnary:

user(_) ->
   	 {ok,Line} = ts_file_server:get_next_line(),
         [Username, Passwd, Account] = string:tokens(Line,";"),
         put(account,Account),
         "tbxUser=" ++ Username ++ "&tbxPwd=" ++ Passwd.

account(_)->
     get(account).

(warn: not tested !)

--
Nicolas