#ifndef included_clib_h
#define included_clib_h
+#include <vppinfra/config.h>
+
/* Standalone means to not assume we are running on a Unix box. */
#if ! defined (CLIB_STANDALONE) && ! defined (CLIB_LINUX_KERNEL)
#define CLIB_UNIX
#endif
#include <vppinfra/types.h>
+#include <vppinfra/atomics.h>
/* Global DEBUG flag. Setting this to 1 or 0 turns off
ASSERT (see vppinfra/error.h) & other debugging code. */
#define CLIB_PACKED(x) x __attribute__ ((packed))
#define CLIB_UNUSED(x) x __attribute__ ((unused))
+/* similar to CLIB_CACHE_LINE_ALIGN_MARK() but with arbitrary alignment */
+#define CLIB_ALIGN_MARK(name, alignment) u8 name[0] __attribute__((aligned(alignment)))
+
/* Make a string from the macro's argument */
#define CLIB_STRING_MACRO(x) #x
#define PREDICT_FALSE(x) __builtin_expect((x),0)
#define PREDICT_TRUE(x) __builtin_expect((x),1)
+/*
+ * Compiler barrier
+ * prevent compiler to reorder memory access accross this boundary
+ * prevent compiler to cache values in register (force reload)
+ * Not to be confused with CPU memory barrier below
+ */
+#define CLIB_COMPILER_BARRIER() asm volatile ("":::"memory")
+
/* Full memory barrier (read and write). */
#define CLIB_MEMORY_BARRIER() __sync_synchronize ()