| 74 | -------------------------------------------------------------------------*/ |
| 75 | |
| 76 | static void * |
| 77 | block_alloc(ArenaBlock *block, size_t size, size_t alignment) |
| 78 | { |
| 79 | char *mem; |
| 80 | |
| 81 | mem = block->m_water_level; |
| 82 | if (((size_t)mem) & (alignment - 1)) { |
| 83 | mem += (alignment - ((size_t)mem)) & (alignment - 1); |
| 84 | } |
| 85 | |
| 86 | if ((block->m_heap_end >= mem) && (((size_t)block->m_heap_end - (size_t)mem) >= size)) { |
| 87 | block->m_water_level = mem + size; |
| 88 | return mem; |
| 89 | } |
| 90 | |
| 91 | return nullptr; |
| 92 | } |
| 93 | |
| 94 | void * |
| 95 | Arena::alloc(size_t size, size_t alignment) |