Exemplo n.º 1
0
static ulong_t mem_scan_region(ulong_t start, ulong_t end, frame_state_t state, void *data_)
{
    struct scan_region_data *data = data_;

    /* try to create kernel heap, if appropriate */
    if (!data->heap_created && state == FRAME_AVAIL && (end - start) >= HEAP_SIZE) {
        mem_set_region_state(start, start + HEAP_SIZE, FRAME_HEAP);
        mem_heap_init(start, start + HEAP_SIZE);
        start += HEAP_SIZE;
        data->heap_created = true;
        data->heap_size = HEAP_SIZE;
    }

    /* set state of all frames in region, and add to freelist if appropriate */
    mem_set_region_state(start, end, state);
    if (state == FRAME_AVAIL) {
        data->avail_pages += (end - start) / PAGE_SIZE;
    }

    return end;
}
Exemplo n.º 2
0
/**
 * Initialize memory allocators.
 */
void
mem_init (void)
{
  mem_heap_init ();
  mem_pools_init ();
} /* mem_init */
Exemplo n.º 3
0
int
main (int __attr_unused___ argc,
      char __attr_unused___ **argv)
{
  TEST_INIT ();

  mem_heap_init ();

  mem_register_a_try_give_memory_back_callback (test_heap_give_some_memory_back);

  mem_heap_print (true, false, true);

  for (uint32_t i = 0; i < test_iters; i++)
  {
    for (uint32_t j = 0; j < test_sub_iters; j++)
    {
      if (rand () % 2)
      {
        size_t size = (size_t) rand () % test_threshold_block_size;
        ptrs[j] = (uint8_t*) mem_heap_alloc_block (size,
                                                   (rand () % 2) ?
                                                   MEM_HEAP_ALLOC_LONG_TERM : MEM_HEAP_ALLOC_SHORT_TERM);
        sizes[j] = size;
        is_one_chunked[j] = false;
      }
      else
      {
        ptrs[j] = (uint8_t*) mem_heap_alloc_chunked_block ((rand () % 2) ?
                                                           MEM_HEAP_ALLOC_LONG_TERM : MEM_HEAP_ALLOC_SHORT_TERM);
        sizes[j] = mem_heap_get_chunked_block_data_size ();
        is_one_chunked[j] = true;
      }

      JERRY_ASSERT (sizes[j] == 0 || ptrs[j] != NULL);
      memset (ptrs[j], 0, sizes[j]);

      if (is_one_chunked[j])
      {
        JERRY_ASSERT (ptrs[j] != NULL
                      && mem_heap_get_chunked_block_start (ptrs[j] + (size_t) rand () % sizes[j]) == ptrs[j]);
      }
    }

    // mem_heap_print (true);

    for (uint32_t j = 0; j < test_sub_iters; j++)
    {
      if (ptrs[j] != NULL)
      {
        for (size_t k = 0; k < sizes[j]; k++)
        {
          JERRY_ASSERT (ptrs[j][k] == 0);
        }

        if (is_one_chunked[j])
        {
          JERRY_ASSERT (sizes[j] == 0
                        || mem_heap_get_chunked_block_start (ptrs[j] + (size_t) rand () % sizes[j]) == ptrs[j]);
        }

        mem_heap_free_block (ptrs[j]);

        ptrs[j] = NULL;
      }
    }
  }

  mem_heap_print (true, false, true);

  return 0;
} /* main */
Exemplo n.º 4
0
void mem_init(struct ls_state *ls)
{
	mem_heap_init(&ls->kern_mem);
	mem_heap_init(&ls->user_mem);
}