| 1 | #include <stdio.h> |
| 2 | #include <arch_atomic.h> |
| 3 | #include <assert.h> |
| 4 | |
| 5 | struct testvals { |
| 6 | unsigned char c; |
| 7 | unsigned short s; |
| 8 | unsigned int i; |
| 9 | unsigned long l; |
| 10 | }; |
| 11 | |
| 12 | static struct testvals vals; |
| 13 | |
| 14 | #define do_test(ptr) \ |
| 15 | do { \ |
| 16 | __typeof__(*(ptr)) v; \ |
| 17 | \ |
| 18 | atomic_add(ptr, 10); \ |
| 19 | assert(*(ptr) == 10); \ |
| 20 | atomic_add(ptr, -11UL); \ |
| 21 | assert(*(ptr) == (__typeof__(*(ptr)))-1UL); \ |
| 22 | v = cmpxchg(ptr, -1UL, 22); \ |
| 23 | assert(*(ptr) == 22); \ |
| 24 | assert(v == (__typeof__(*(ptr)))-1UL); \ |
| 25 | v = cmpxchg(ptr, 33, 44); \ |
| 26 | assert(*(ptr) == 22); \ |
| 27 | assert(v == 22); \ |
| 28 | v = xchg(ptr, 55); \ |
| 29 | assert(*(ptr) == 55); \ |
| 30 | assert(v == 22); \ |
| 31 | } while (0) |
| 32 | |
| 33 | int main(int argc, char **argv) |
| 34 | { |
| 35 | do_test(&vals.c); |
| 36 | do_test(&vals.s); |
| 37 | do_test(&vals.i); |
| 38 | do_test(&vals.l); |
| 39 | printf("Atomic ops test OK\n"); |
| 40 | |
| 41 | return 0; |
| 42 | } |