Hi,

I'm using boost::threads in my project and want to use tcl/tk as interpreter
and gui.

Via boost::threads i've created two main threads :

- one running the tcl interpreter (and the gui incl. DoOneEvent loop)
  (The Tcl Interpreter and the Tk Eventloop has been encapsulated in an
  own object.)

- one running my projects computations.

Basically i want to access tk widgets from my computations to show results
and update gauges etc.. Since both, my computation thread and the tcl
interpreter/gui thread can access the same ressource (widget, vars) it could
come to problems.

Now i have a question:

- does it make sense to use a boost::mutex on every Tcl_Eval-Invocation and
in the DoOneEvent loop since Tcl/Tk uses pthreads itself and runs an own
thread management ? 
- or more generally WHERE do i use my mutex to make the app stable ?

Yours Sincerly
-Lukas

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