| // Copyright 2017 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // +build darwin |
| |
| package gpt |
| |
| import "os" |
| |
| const ( |
| // IOCTLPhysical = DKIOCGETPHYSICALBLOCKSIZE is the darwin ioctl flag for physical block size |
| IOCTLPhysical = 1074029645 |
| |
| // IOCTLLogical = DKIOCGETBLOCKSIZE is the darwin ioctl flag for logical block size |
| IOCTLLogical = 1074029592 |
| |
| // IOCTLSize = DKIOCGETBLOCKCOUNT is the darwin ioctl flag for disk block count |
| IOCTLSize = 1074291737 |
| ) |
| |
| // GetOptimalTransferSize returns the optimal transfer size of the given disk. |
| // Unimplemented on OSX, it just returns 0. |
| func GetOptimalTransferSize(f *os.File) (uint64, error) { |
| return 0, nil |
| } |
