#include <arch_atomic.h>
#include <assert.h>
+#if (defined(__i386__) || defined(__x86_64__))
+#define HAS_ATOMIC_BYTE
+#define HAS_ATOMIC_SHORT
+#endif
+
struct testvals {
+#ifdef HAS_ATOMIC_BYTE
unsigned char c;
+#endif
+#ifdef HAS_ATOMIC_SHORT
unsigned short s;
+#endif
unsigned int i;
unsigned long l;
};
__typeof__(*(ptr)) v; \
\
atomic_add(ptr, 10); \
- assert(*(ptr) == 10); \
+ assert(atomic_read(ptr) == 10); \
atomic_add(ptr, -11UL); \
- assert(*(ptr) == (__typeof__(*(ptr)))-1UL); \
+ assert(atomic_read(ptr) == (__typeof__(*(ptr)))-1UL); \
v = cmpxchg(ptr, -1UL, 22); \
- assert(*(ptr) == 22); \
+ assert(atomic_read(ptr) == 22); \
assert(v == (__typeof__(*(ptr)))-1UL); \
v = cmpxchg(ptr, 33, 44); \
- assert(*(ptr) == 22); \
+ assert(atomic_read(ptr) == 22); \
assert(v == 22); \
v = xchg(ptr, 55); \
- assert(*(ptr) == 55); \
+ assert(atomic_read(ptr) == 55); \
assert(v == 22); \
+ atomic_set(ptr, 22); \
+ atomic_inc(ptr); \
+ assert(atomic_read(ptr) == 23); \
+ atomic_dec(ptr); \
+ assert(atomic_read(ptr) == 22); \
+ v = atomic_add_return(ptr, 100); \
+ assert(v == 122); \
+ assert(atomic_read(ptr) == 122); \
+ v = atomic_sub_return(ptr, 1); \
+ assert(v == 121); \
+ assert(atomic_read(ptr) == 121); \
} while (0)
int main(int argc, char **argv)
{
+#ifdef HAS_ATOMIC_BYTE
do_test(&vals.c);
+#endif
+#ifdef HAS_ATOMIC_SHORT
do_test(&vals.s);
+#endif
do_test(&vals.i);
do_test(&vals.l);
printf("Atomic ops test OK\n");