pthread_test/iriw_wildcard.cc

   1 /**
   2  * @file iriw.cc
   3  * @brief Independent read and independent write test
   4  */
   5
   6 #include <atomic>
   7 #include <pthread.h>
   8 #include <stdio.h>
   9
  10 #include "wildcard.h"
  11 #include "model-assert.h"
  12
  13 using namespace std;
  14
  15 atomic_int x, y;
  16 int r1, r2, r3, r4; /* "local" variables */
  17
  18 static void *a(void *obj)
  19 {
  20         x.store(1, wildcard(1));
  21         return NULL;
  22 }
  23
  24 static void *b(void *obj)
  25 {
  26         y.store(1, wildcard(2));
  27         return NULL;
  28 }
  29
  30 static void *c(void *obj)
  31 {
  32         r1 = x.load(wildcard(3));
  33         r2 = y.load(wildcard(4));
  34         return NULL;
  35 }
  36
  37 static void *d(void *obj)
  38 {
  39         r3 = y.load(wildcard(5));
  40         r4 = x.load(wildcard(6));
  41         return NULL;
  42 }
  43
  44
  45 int user_main(int argc, char **argv)
  46 {
  47         pthread_t t1, t2, t3, t4;
  48
  49         atomic_init(&x, 0);
  50         atomic_init(&y, 0);
  51
  52         printf("Main thread: creating 4 threads\n");
  53         pthread_create(&t1,NULL, &a, NULL);
  54         pthread_create(&t2,NULL, &b, NULL);
  55         pthread_create(&t3,NULL, &c, NULL);
  56         pthread_create(&t4,NULL, &d, NULL);
  57
  58         pthread_join(t1,NULL);
  59         pthread_join(t2,NULL);
  60         pthread_join(t3,NULL);
  61         pthread_join(t4,NULL);
  62         printf("Main thread is finished\n");
  63
  64         /*
  65          * This condition should not be hit if the execution is SC */
  66         bool sc = (r1 == 1 && r2 == 0 && r3 == 1 && r4 == 0);
  67         //MODEL_ASSERT(!sc);
  68
  69         return 0;
  70 }