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comparison libgsmefr/tls_flags.c @ 38:38326102fc43

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libgsmefr: beginning to integrate code from ETSI
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 24 Nov 2022 05:30:03 +0000
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37:b4db5366b595 38:38326102fc43
1 /*
2 * Unfortunately the code we got from ETSI makes heavy use of two global
3 * Boolean flags named Carry and Overflow that function like equally named
4 * processor state flags on many CPU architectures. They are not part
5 * of persistent codec session state for either the encoder or the decoder,
6 * instead they are "short-term" globals much like UNIX errno.
7 *
8 * Given this unfortunate reality plus the natural desire to make our
9 * EFR library thread-safe (a transcoding MGW handling a large volume of
10 * simultaneous calls is exactly the kind of application that would benefit
11 * from utilitizing all CPU cores), our current workaround is to use
12 * thread-local storage.
13 */
14
15 #include <stdint.h>
16 #include "typedef.h"
17
18 __thread Flag EFR__Carry, EFR__Overflow;