test/nestedpromise.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3 #include <threads.h>
   4 #include <stdatomic.h>
   5
   6 #include "librace.h"
   7 #include "model-assert.h"
   8
   9 atomic_int x;
  10 atomic_int y;
  11 atomic_int z;
  12 static void a(void *obj)
  13 {
  14         atomic_load_explicit(&z, memory_order_relaxed); // this is only for schedule control
  15         int t1=atomic_load_explicit(&x, memory_order_relaxed);
  16         atomic_store_explicit(&y, 1, memory_order_relaxed);
  17         printf("t1=%d\n",t1);
  18 }
  19
  20 static void b(void *obj)
  21 {
  22         int t2=atomic_load_explicit(&y, memory_order_relaxed);
  23         atomic_store_explicit(&x, t2, memory_order_relaxed);
  24 }
  25
  26 int user_main(int argc, char **argv)
  27 {
  28         thrd_t t1, t2;
  29
  30
  31         atomic_init(&x, 0);
  32         atomic_init(&y, 0);
  33         atomic_init(&z, 0);
  34         thrd_create(&t1, (thrd_start_t)&a, NULL);
  35         thrd_create(&t2, (thrd_start_t)&b, NULL);
  36
  37         thrd_join(t1);
  38         thrd_join(t2);
  39
  40
  41         return 0;
  42 }