C++ (Cpp) rtems_cache_aligned_malloc Examples

Example #1

File: init.c Project: ChOr82/RTEMS

static void test_cache_aligned_alloc(void)
{
  void *p0;
  void *p1;
  size_t cls;

  printf("test rtems_cache_aligned_malloc()\n");

  p0 = rtems_cache_aligned_malloc(1);
  p1 = rtems_cache_aligned_malloc(1);

  rtems_test_assert(p0 != NULL);
  rtems_test_assert(p1 != NULL);

  cls = rtems_cache_get_data_line_size();
  if (cls > 0) {
    size_t m = cls - 1;
    uintptr_t a0 = (uintptr_t) p0;
    uintptr_t a1 = (uintptr_t) p1;

    rtems_test_assert(a1 - a0 > cls);
    rtems_test_assert((a0 & m) == 0);
    rtems_test_assert((a1 & m) == 0);
  }

  free(p0);
  free(p1);
}

Example #2

File: rtems-kernel-chunk.c Project: deval-maker/rtems-libbsd

void *
rtems_bsd_chunk_alloc(rtems_bsd_chunk_control *self, uintptr_t chunk_size)
{
	char *p = rtems_cache_aligned_malloc(chunk_size + self->info_size);

	if (p != NULL) {
		rtems_bsd_chunk_info *info = (rtems_bsd_chunk_info *) p;

		p += self->info_size;

		info->begin = (uintptr_t) p;
		info->end = (uintptr_t) p + chunk_size;

		(*self->info_ctor)(self, info);

		_RTEMS_Lock_allocator();
		rtems_rbtree_insert(&self->chunks, &info->node, chunk_compare, true);
		_RTEMS_Unlock_allocator();
	}

	return p;
}