helgrind/tests/hg04_race.c

   1 /* A simple race */
   2
   3 #include <pthread.h>
   4 #include <unistd.h>
   5
   6 static int shared;
   7
   8 static void *th(void *v)
   9 {
  10         shared++;
  11
  12         return 0;
  13 }
  14
  15 int main()
  16 {
  17         pthread_t a, b;
  18
  19         pthread_create(&a, NULL, th, NULL);
  20         sleep(1);               /* force ordering */
  21         pthread_create(&b, NULL, th, NULL);
  22
  23         pthread_join(a, NULL);
  24         pthread_join(b, NULL);
  25
  26         return 0;
  27 }