view libtwamr/tls_flags.c @ 317:675597e63fd8

libtwamr: integrate gray.tab, convert to intermodule linkage
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 18 Apr 2024 18:00:12 +0000
parents 57b4053559ff
children dfb1f86541b2
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/*
 * 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 <stdint.h>
#include "typedef.h"

__thread Flag AMR__Carry, AMR__Overflow;