Function test_atomic_dec_and_test

dpdk/app/test/test_atomic.c:235–251

* rte_atomicXX_dec_and_test() should decrease a 32 bits counter by one and then * test if that counter is equal to 0. It should return true if the counter is 0 * and false if the counter is not 0. * This test checks if the counter is equal to 0 after being atomically * decreased by one. If it is, increase the value of "count" by one which is to * be checked as the result later. */

 * be checked as the result later.
 */
static int
test_atomic_dec_and_test(__rte_unused void *arg)
{
	while (rte_atomic32_read(&synchro) == 0)
		;

	if (rte_atomic16_dec_and_test(&a16))
		rte_atomic64_inc(&count);

	if (rte_atomic32_dec_and_test(&a32))
		rte_atomic64_inc(&count);

	if (rte_atomic64_dec_and_test(&a64))
		rte_atomic64_inc(&count);

	return 0;
}

#if defined(RTE_ARCH_X86_64) || defined(RTE_ARCH_ARM64)
static rte_int128_t count128;