| 475 | } |
| 476 | |
| 477 | void TFileMap::Flush(void* ptr, size_t size, bool sync) { |
| 478 | Y_ASSERT(ptr >= Ptr()); |
| 479 | Y_ASSERT(static_cast<char*>(ptr) + size <= static_cast<char*>(Ptr()) + MappedSize()); |
| 480 | |
| 481 | if (!Region_.IsMapped()) { |
| 482 | return; |
| 483 | } |
| 484 | |
| 485 | #if defined(_win_) |
| 486 | if (sync) { |
| 487 | FlushViewOfFile(ptr, size); |
| 488 | } |
| 489 | #else |
| 490 | msync(ptr, size, sync ? MS_SYNC : MS_ASYNC); |
| 491 | #endif |
| 492 | } |
| 493 | |
| 494 | TFileMap::TMapResult TFileMap::Map(i64 offset, size_t size) { |
| 495 | Unmap(); |