| 68 | } |
| 69 | |
| 70 | Future<Void> write(void const* data, int length, int64_t offset) { |
| 71 | ASSERT(isOpen()); |
| 72 | fseek(f, offset, SEEK_SET); |
| 73 | if (fwrite(data, 1, length, f) != length) |
| 74 | throw io_error(); |
| 75 | return Void(); |
| 76 | } |
| 77 | |
| 78 | Future<Void> truncate(int64_t size) { |
| 79 | ASSERT(size == 0); |