Function stopping a function
sxn02 at yahoo.com
Fri Nov 23 18:36:15 CET 2007
In my situation, there is a device with keyboard that
allows some user input. In the same time, the device
is connected to a standard PC, and there may be some
The lengthy_function() resides and executes in the
device, and so is cancel().
Lengthy_function() is pretty linear: according to some
conditions, the user is asked for this or that. Than,
with the new conditions, lenghty_function() may need
to communicate with the PC. And now, with the updated
conditions, may ask more stuff from user.
At any time the user can press a CANCEL button, or the
PC can generate a CANCEL.
What I have now is a global variable which cancel()
will change and then, each "if" statement in
lenghty_function() will check that variable, together
with its specific condition. I was hopping that there
may be a more elegant solution.
No threads involved in my design (apart for what the
device may have to handle events like button-press and
Thanks everyone for your answers.
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