1 #include <stdlib.h>
2 #include <stdio.h>
3 #include <pthread.h>
4 #include <sched.h>
5 #include <assert.h>
6 
7 static void *
func(void * p)8 func (void *p)
9 {
10   int *counter = (int *) p;
11   unsigned i;
12   enum { numarrays = 100, numels = 17 };
13   char *arrays [numarrays];
14 
15   for (i=0; i<numarrays; i++)
16     {
17       (*counter) ++;
18       unsigned x = i % numels;
19       arrays[i] = calloc (numels, sizeof(arrays[i][0]));
20       assert (arrays[i] != NULL);
21       arrays[i][x] = i;
22       free (arrays[i]);
23       sched_yield (); /* sleep (1); */
24     }
25 
26   return (NULL);
27 }
28 
29 
main()30 int main ()
31 {
32   int rc;
33   unsigned i;
34   enum foo { NT=10 };
35   pthread_t threads[NT];
36   int counts[NT];
37 
38 
39   for (i=0; i<NT; i++)
40     {
41       counts[i] = 0;
42       rc = pthread_create (& threads[i], NULL, func, (void *) & counts[i]);
43       if (rc) abort();
44     }
45 
46   for (i=0; i<NT; i++)
47     {
48       rc = pthread_join (threads[i], NULL);
49       if (rc) abort();
50      printf ("%d%s", counts[i], (i==NT-1) ? "\n" : " ");
51     }
52 
53   return 0;
54 }
55 /* { dg-output "100 100 100 100 100 100 100 100 100 100" } */
56 /* { dg-repetitions 20 } */
57 /* { dg-timeout 10 } */
58