clebertsuconic commented on a change in pull request #5: ARTEMIS-2533 Support
multiple architecture for ASYNCIO kernel by-pass
URL:
https://github.com/apache/activemq-artemis-native/pull/5#discussion_r340253649
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File path:
src/main/c/org_apache_activemq_artemis_nativo_jlibaio_LibaioContext.c
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@@ -32,15 +32,11 @@
#include <fcntl.h>
#include <stdlib.h>
#include <pthread.h>
+#include <stdatomic.h>
#include <limits.h>
#include "org_apache_activemq_artemis_nativo_jlibaio_LibaioContext.h"
#include "exception_helper.h"
-//x86 has a strong memory model and there is no need of HW fences if just
Write-Back (WB) memory is used
-#define mem_barrier() __asm__ __volatile__ ("":::"memory")
-#define read_barrier() __asm__ __volatile__("":::"memory")
-#define store_barrier() __asm__ __volatile__("":::"memory")
-
Review comment:
I understand what you mean now, after I tried it.
this would require RHEL8 / CENTOS8, or a newer Kernel.
it would limit where this would be available to run. So, we need to keep it
simple.
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