C++ (Cpp) __pthread_key_lock_ready Beispiele

Beispiel #1

void
__pthread_destroy_specific (struct __pthread *thread)
{
  int i;
  int seen_one;

  /* Check if there is any thread specific data.  */
  if (thread->thread_specifics == NULL)
    return;

  __pthread_key_lock_ready ();

  /* Iterate and call the destructors on any thread specific data.  */
  for (;;)
    {
      seen_one = 0;

      __pthread_mutex_lock (&__pthread_key_lock);

      for (i = 0; i < __pthread_key_count && i < thread->thread_specifics_size;
	   i++)
	{
	  void *value;

	  if (__pthread_key_destructors[i] == PTHREAD_KEY_INVALID)
	    continue;

	  value = thread->thread_specifics[i];
	  if (value != NULL)
	    {
	      thread->thread_specifics[i] = 0;

	      if (__pthread_key_destructors[i])
		{
		  seen_one = 1;
		  __pthread_key_destructors[i] (value);
		}
	    }
	}

      __pthread_mutex_unlock (&__pthread_key_lock);

      if (!seen_one)
	break;

      /* This may take a very long time.  Let those blocking on
         pthread_key_create or pthread_key_delete make progress.  */
      sched_yield ();
    }

  free (thread->thread_specifics);
  thread->thread_specifics = 0;
  thread->thread_specifics_size = 0;
}

Beispiel #2

Datei: pt-destroy-specific.c Projekt: jiuzhuaxiong/libpthread

void
__pthread_destroy_specific (struct __pthread *thread)
{
  error_t err;
  int i;
  int seen_one;

  /* Check if there is any thread specific data.  */
  if (! thread->thread_specifics)
    return;

  __pthread_key_lock_ready ();

  /* Iterate and call the destructors on any thread specific data.  */
  for (;;)
    {
      seen_one = 0;

      __pthread_mutex_lock (&__pthread_key_lock);

      for (i = 0; i < __pthread_key_count; i ++)
	{
	  void *value;

	  if (__pthread_key_destructors[i] == PTHREAD_KEY_INVALID)
	    continue;

	  value = hurd_ihash_find (thread->thread_specifics, i);
	  if (value)
	    {
	      err = hurd_ihash_remove (thread->thread_specifics, i);
	      assert (err == 1);

	      if (__pthread_key_destructors[i])
		{
		  seen_one = 1;
		  __pthread_key_destructors[i] (value);
		}
	    }
	}

      __pthread_mutex_unlock (&__pthread_key_lock);

      if (! seen_one)
	break;

      /* This may take a very long time.  Let those blocking on
	 pthread_key_create or pthread_key_delete make progress.  */
      sched_yield ();
    }

  hurd_ihash_free (thread->thread_specifics);
  thread->thread_specifics = 0;
}