+
−/*
+
− * Unfortunately the code we got from ETSI makes heavy use of two global
+
− * Boolean flags named Carry and Overflow that function like equally named
+
− * processor state flags on many CPU architectures.  They are not part
+
− * of persistent codec session state for either the encoder or the decoder,
+
− * instead they are "short-term" globals much like UNIX errno.
+
− *
+
− * Given this unfortunate reality plus the natural desire to make our
+
− * AMR library thread-safe (a transcoding MGW handling a large volume of
+
− * simultaneous calls is exactly the kind of application that would benefit
+
− * from utilitizing all CPU cores), our current workaround is to use
+
− * thread-local storage.
+
− */
+
−
+
−#include "typedef.h"
+
−#include "namespace.h"
+
−
+
−__thread Flag Carry, Overflow;