Issue #971 Make local copy of speeking_module to ensure it can be tested for NULL #972
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The
speak
thread can change thespeeking_module
to NULL while we are in this function. So even thoughspeeking_module
is tested for NULL, this is not good enough in a multi-threading environment.This change grabs a local copy of
speeking_module
and then tests that for NULL so that even if a thread context switch were to occur andspeeking_module
is set to NULL, the local copy will remain stable and usable.