Subversion Repositories scarts

#include <stdlib.h>

#include <stdio.h>

#include <pthread.h>

#include <sched.h>

#include <assert.h>

static void *

func (void *p)

{

  int *counter = (int *) p;

  unsigned i;

  enum { numarrays = 100, numels = 17 };

  char *arrays [numarrays];

  for (i=0; i<numarrays; i++)

    {

      (*counter) ++;

      unsigned x = i % numels;

      arrays[i] = calloc (numels, sizeof(arrays[i][0]));

      assert (arrays[i] != NULL);

      arrays[i][x] = i;

      free (arrays[i]);

      sched_yield (); /* sleep (1); */

    }

  return (NULL);

}

int main ()

{

  int rc;

  unsigned i;

  enum foo { NT=10 };

  pthread_t threads[NT];

  int counts[NT];

  for (i=0; i<NT; i++)

    {

      counts[i] = 0;

      rc = pthread_create (& threads[i], NULL, func, (void *) & counts[i]);

      if (rc) abort();

    }

  for (i=0; i<NT; i++)

    {

      rc = pthread_join (threads[i], NULL);

      if (rc) abort();

     printf ("%d%s", counts[i], (i==NT-1) ? "\n" : " ");

    }

  return 0;

}

/* { dg-output "100 100 100 100 100 100 100 100 100 100" } */

/* { dg-repetitions 20 } */

/* { dg-timeout 10 } */