Fix startup crash due to int overflow on 32-bit architectures - #6
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Defer conversion to int until after the calculation to avoid overflow on 32-bit architectures.
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period and timeSlice are 64-bit counts of nanoseconds so were causing overflow and a subsequent crash if they were > ~2.1s when they were being converted to int on 32-bit architecture like ARM where int is 32-bit. Fixed by deferring conversion to int until after the calculation.