| 42 | Schema::~Schema() {} |
| 43 | |
| 44 | void |
| 45 | Schema::updateMemOffsets() |
| 46 | { |
| 47 | ink_release_assert(cnt_constructed == cnt_destructed); |
| 48 | |
| 49 | uint32_t acc_offset = 0; |
| 50 | alloc_align = 1; |
| 51 | |
| 52 | for (auto &pair_fld : fields) { |
| 53 | alloc_align = std::max(alloc_align, pair_fld.second.align); |
| 54 | } |
| 55 | |
| 56 | // allocate fields from largest to smallest alignment |
| 57 | uint8_t processing_align = alloc_align; |
| 58 | while (processing_align > 0) { |
| 59 | uint8_t next_align = 0; |
| 60 | for (auto &pair_fld : fields) { |
| 61 | auto &fld = pair_fld.second; |
| 62 | if (fld.align == processing_align) { |
| 63 | fld.field_offset = acc_offset; |
| 64 | acc_offset += fld.size; |
| 65 | } else if (fld.align < processing_align) { |
| 66 | next_align = std::max(next_align, fld.align); |
| 67 | } |
| 68 | } |
| 69 | processing_align = next_align; |
| 70 | } |
| 71 | |
| 72 | // align '0' are packed bit allocations. |
| 73 | uint32_t acc_bit_offset = 0; |
| 74 | for (auto &pair_fld : fields) { |
| 75 | auto &fld = pair_fld.second; |
| 76 | if (fld.align == 0) { |
| 77 | fld.field_offset = acc_offset + acc_bit_offset / 8; |
| 78 | fld.mask = 1 << (acc_bit_offset % 8); |
| 79 | ++acc_bit_offset; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | alloc_size = acc_offset + (acc_bit_offset + 7) / 8; |
| 84 | } |
| 85 | |
| 86 | bool |
| 87 | Schema::reset() |