[Octave-bug-tracker] [bug #44406] glps_renderer::draw uses static state variable, potential bug?

[John W. Eaton]

Follow-up Comment #4, bug #44406 (project octave):

Also...

In Octave code, interrupts only set a global variable which is checked
periodically.  It's only at the point of checking the global interrupt state
variable that the interrupt actually happens.  So unless the code that is
protected with the static variable calls something that checks the global
variable and throws an interrupt exception (usually with the OCTAVE_QUIT
macro) then there is no need to use unwind_protect.  But you should only skip
the unwind_protect if you are certain that there can be no calls to
OCTAVE_QUIT where the value of the static (or global) varaiable is set/reset.

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