From: Joyce Kong <joyce.k...@arm.com>
Convert rte_atomic32_test_and_set usage to compiler atomic
CAS operation for display_stats sync.
Signed-off-by: Joyce Kong <joyce.k...@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.w...@arm.com>
---
examples/multi_process/client_server_mp/mp_server/main.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/examples/multi_process/client_server_mp/mp_server/main.c
b/examples/multi_process/client_server_mp/mp_server/main.c
index 9bcee460fd24..b4761ebc7b05 100644
--- a/examples/multi_process/client_server_mp/mp_server/main.c
+++ b/examples/multi_process/client_server_mp/mp_server/main.c
@@ -20,7 +20,6 @@
#include <rte_per_lcore.h>
#include <rte_lcore.h>
#include <rte_branch_prediction.h>
-#include <rte_atomic.h>
#include <rte_ring.h>
#include <rte_log.h>
#include <rte_debug.h>
@@ -158,10 +157,12 @@ static int
sleep_lcore(__rte_unused void *dummy)
{
/* Used to pick a display thread - static, so zero-initialised */
- static rte_atomic32_t display_stats;
+ static uint32_t display_stats;
+ uint32_t status = 0;
/* Only one core should display stats */
- if (rte_atomic32_test_and_set(&display_stats)) {
+ if (__atomic_compare_exchange_n(&display_stats, &status, 1, 0,
+ __ATOMIC_RELAXED, __ATOMIC_RELAXED)) {
const unsigned sleeptime = 1;
printf("Core %u displaying statistics\n", rte_lcore_id());
--
2.25.1
