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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /linuxthreads/Examples/ex14.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'linuxthreads/Examples/ex14.c')
-rw-r--r--linuxthreads/Examples/ex14.c133
1 files changed, 0 insertions, 133 deletions
diff --git a/linuxthreads/Examples/ex14.c b/linuxthreads/Examples/ex14.c
deleted file mode 100644
index 406e03f346..0000000000
--- a/linuxthreads/Examples/ex14.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/* Test of POSIX barriers.  */
-
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#define NTHREADS 20
-
-#define ROUNDS 20
-
-static pthread_barrier_t barriers[NTHREADS];
-
-static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
-static int counters[NTHREADS];
-static int serial[NTHREADS];
-
-static void *
-worker (void *arg)
-{
-  void *result = NULL;
-  int nr = (long int) arg;
-  int i;
-
-  for (i = 0; i < ROUNDS; ++i)
-    {
-      int j;
-      int retval;
-
-      if (nr == 0)
-	{
-	  memset (counters, '\0', sizeof (counters));
-	  memset (serial, '\0', sizeof (serial));
-	}
-
-      retval = pthread_barrier_wait (&barriers[NTHREADS - 1]);
-      if (retval != 0 && retval != PTHREAD_BARRIER_SERIAL_THREAD)
-	{
-	  printf ("thread %d failed to wait for all the others\n", nr);
-	  result = (void *) 1;
-	}
-
-      for (j = nr; j < NTHREADS; ++j)
-	{
-	  /* Increment the counter for this round.  */
-	  pthread_mutex_lock (&lock);
-	  ++counters[j];
-	  pthread_mutex_unlock (&lock);
-
-	  /* Wait for the rest.  */
-	  retval = pthread_barrier_wait (&barriers[j]);
-
-	  /* Test the result.  */
-	  if (nr == 0 && counters[j] != j + 1)
-	    {
-	      printf ("barrier in round %d released but count is %d\n",
-		      j, counters[j]);
-	      result = (void *) 1;
-	    }
-
-	  if (retval != 0)
-	    {
-	      if (retval != PTHREAD_BARRIER_SERIAL_THREAD)
-		{
-		  printf ("thread %d in round %d has nonzero return value != PTHREAD_BARRIER_SERIAL_THREAD\n",
-			  nr, j);
-		  result = (void *) 1;
-		}
-	      else
-		{
-		  pthread_mutex_lock (&lock);
-		  ++serial[j];
-		  pthread_mutex_unlock (&lock);
-		}
-	    }
-
-	  /* Wait for the rest again.  */
-	  retval = pthread_barrier_wait (&barriers[j]);
-
-	  /* Now we can check whether exactly one thread was serializing.  */
-	  if (nr == 0 && serial[j] != 1)
-	    {
-	      printf ("not exactly one serial thread in round %d\n", j);
-	      result = (void *) 1;
-	    }
-	}
-    }
-
-  return result;
-}
-
-
-#define TEST_FUNCTION do_test ()
-#define TIMEOUT 60
-static int
-do_test (void)
-{
-  pthread_t threads[NTHREADS];
-  int i;
-  void *res;
-  int result = 0;
-
-  /* Initialized the barrier variables.  */
-  for (i = 0; i < NTHREADS; ++i)
-    if (pthread_barrier_init (&barriers[i], NULL, i + 1) != 0)
-      {
-	printf ("Failed to initialize barrier %d\n", i);
-	exit (1);
-      }
-
-  /* Start the threads.  */
-  for (i = 0; i < NTHREADS; ++i)
-    if (pthread_create (&threads[i], NULL, worker, (void *) (long int) i) != 0)
-      {
-	printf ("Failed to start thread %d\n", i);
-	exit (1);
-      }
-
-  /* And wait for them.  */
-  for (i = 0; i < NTHREADS; ++i)
-    if (pthread_join (threads[i], &res) != 0 || res != NULL)
-      {
-	printf ("thread %d returned a failure\n", i);
-	result = 1;
-      }
-
-  if (result == 0)
-    puts ("all OK");
-
-  return result;
-}
-
-#include "../test-skeleton.c"