C++ (Cpp) PL_malloc_atomic_unmanaged примеры использования

Пример #1

Файл: pl-bag.c Проект: SWI-Prolog/swipl-devel

static void *
alloc_mem_pool(mem_pool *mp, size_t bytes)
{ char *ptr;

  if ( mp->chunks->used + bytes <= mp->chunks->size )
  { ptr = &((char *)(mp->chunks+1))[mp->chunks->used];
    mp->chunks->used += ROUNDUP(bytes, sizeof(void*));
  } else
  { size_t chunksize = (bytes < 1000 ? 4000 : bytes);
    mem_chunk *c = PL_malloc_atomic_unmanaged(chunksize+sizeof(mem_chunk));

    if ( c )
    { c->size    = chunksize;
      c->used    = ROUNDUP(bytes, sizeof(void*));
      c->prev    = mp->chunks;
      mp->chunks = c;
      ptr        = (char *)(mp->chunks+1);
    } else
      return NULL;
  }

#ifdef O_DEBUG
  assert((uintptr_t)ptr%sizeof(void*) == 0);
#endif

  return ptr;
}

Пример #2

Файл: pl-bag.c Проект: brayc0/nlfetdb

static void *
alloc_mem_pool(mem_pool *mp, size_t bytes)
{ char *ptr;

  if ( mp->chunks->used + bytes <= mp->chunks->size )
  { ptr = &((char *)(mp->chunks+1))[mp->chunks->used];
    mp->chunks->used += bytes;
  } else
  { size_t chunksize = (bytes < 1000 ? 4000 : bytes);
    mem_chunk *c = PL_malloc_atomic_unmanaged(chunksize+sizeof(mem_chunk));

    if ( c )
    { c->size    = chunksize;
      c->used    = bytes;
      c->prev    = mp->chunks;
      mp->chunks = c;
      ptr        = (char *)(mp->chunks+1);
    } else
      return NULL;
  }

  return ptr;
}