test/rmw2prog.c

   1 #include <stdio.h>
   2 #include <threads.h>
   3 #include <stdatomic.h>
   4
   5 #include "librace.h"
   6
   7 atomic_int x;
   8 atomic_int y;
   9
  10 static void a(void *obj)
  11 {
  12         int v1=atomic_fetch_add_explicit(&x, 1, memory_order_relaxed);
  13         int v2=atomic_fetch_add_explicit(&y, 1, memory_order_relaxed);
  14         printf("v1 = %d, v2=%d\n", v1, v2);
  15 }
  16
  17 static void b(void *obj)
  18 {
  19         int v3=atomic_fetch_add_explicit(&y, 1, memory_order_relaxed);
  20         int v4=atomic_fetch_add_explicit(&x, 1, memory_order_relaxed);
  21         printf("v3 = %d, v4=%d\n", v3, v4);
  22 }
  23
  24 int user_main(int argc, char **argv)
  25 {
  26         thrd_t t1, t2;
  27
  28         atomic_init(&x, 0);
  29         atomic_init(&y, 0);
  30         thrd_create(&t1, (thrd_start_t)&a, NULL);
  31         thrd_create(&t2, (thrd_start_t)&b, NULL);
  32
  33         thrd_join(t1);
  34         thrd_join(t2);
  35
  36         return 0;
  37 }