C++ (Cpp) JMEM_POOLS_STAT_NEW_ALLOC Examples

Example #1

File: jmem-poolman.c Project: garryxin/HelloX_OS

/**
 * Allocate a chunk of specified size
 *
 * @return pointer to allocated chunk, if allocation was successful,
 *         or NULL - if not enough memory.
 */
void * __attr_hot___ __attr_always_inline___
jmem_pools_alloc (size_t size) /**< size of the chunk */
{
#ifdef JMEM_GC_BEFORE_EACH_ALLOC
  jmem_run_free_unused_memory_callbacks (JMEM_FREE_UNUSED_MEMORY_SEVERITY_HIGH);
#endif /* JMEM_GC_BEFORE_EACH_ALLOC */

  if (size <= 8)
  {
    if (JERRY_CONTEXT (jmem_free_8_byte_chunk_p) != NULL)
    {
      const jmem_pools_chunk_t *const chunk_p = JERRY_CONTEXT (jmem_free_8_byte_chunk_p);

      JMEM_POOLS_STAT_REUSE ();

      VALGRIND_DEFINED_SPACE (chunk_p, sizeof (jmem_pools_chunk_t));

      JERRY_CONTEXT (jmem_free_8_byte_chunk_p) = chunk_p->next_p;

      VALGRIND_UNDEFINED_SPACE (chunk_p, sizeof (jmem_pools_chunk_t));

      return (void *) chunk_p;
    }
    else
    {
      JMEM_POOLS_STAT_NEW_ALLOC ();
      return (void *) jmem_heap_alloc_block (8);
    }
  }

#ifdef JERRY_CPOINTER_32_BIT
  JERRY_ASSERT (size <= 16);

  if (JERRY_CONTEXT (jmem_free_16_byte_chunk_p) != NULL)
  {
    const jmem_pools_chunk_t *const chunk_p = JERRY_CONTEXT (jmem_free_16_byte_chunk_p);

    JMEM_POOLS_STAT_REUSE ();

    VALGRIND_DEFINED_SPACE (chunk_p, sizeof (jmem_pools_chunk_t));

    JERRY_CONTEXT (jmem_free_16_byte_chunk_p) = chunk_p->next_p;

    VALGRIND_UNDEFINED_SPACE (chunk_p, sizeof (jmem_pools_chunk_t));

    return (void *) chunk_p;
  }
  else
  {
    JMEM_POOLS_STAT_NEW_ALLOC ();
    return (void *) jmem_heap_alloc_block (16);
  }
#else /* !JERRY_CPOINTER_32_BIT */
  JERRY_UNREACHABLE ();
  return NULL;
#endif
} /* jmem_pools_alloc */

Example #2

File: jmem-poolman.c Project: iamblue/jerryscript

/**
 * Allocate a chunk of specified size
 *
 * @return pointer to allocated chunk, if allocation was successful,
 *         or NULL - if not enough memory.
 */
inline void * __attribute__((hot)) __attr_always_inline___
jmem_pools_alloc (void)
{
#ifdef JMEM_GC_BEFORE_EACH_ALLOC
  jmem_run_free_unused_memory_callbacks (JMEM_FREE_UNUSED_MEMORY_SEVERITY_HIGH);
#endif /* JMEM_GC_BEFORE_EACH_ALLOC */

  if (JERRY_CONTEXT (jmem_free_chunk_p) != NULL)
  {
    const jmem_pools_chunk_t *const chunk_p = JERRY_CONTEXT (jmem_free_chunk_p);

    JMEM_POOLS_STAT_REUSE ();

    VALGRIND_DEFINED_SPACE (chunk_p, JMEM_POOL_CHUNK_SIZE);

    JERRY_CONTEXT (jmem_free_chunk_p) = chunk_p->next_p;

    VALGRIND_UNDEFINED_SPACE (chunk_p, JMEM_POOL_CHUNK_SIZE);

    return (void *) chunk_p;
  }
  else
  {
    JMEM_POOLS_STAT_NEW_ALLOC ();
    return (void *) jmem_heap_alloc_block (JMEM_POOL_CHUNK_SIZE);
  }
} /* jmem_pools_alloc */