| 1 | /* $Id: tstVDDiscard.vd 82968 2020-02-04 10:35:17Z vboxsync $ */
|
|---|
| 2 | /**
|
|---|
| 3 | * Storage: Testcase for discarding data in a disk.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2011-2020 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | */
|
|---|
| 17 |
|
|---|
| 18 | void main()
|
|---|
| 19 | {
|
|---|
| 20 | /* Init I/O RNG for generating random data for writes. */
|
|---|
| 21 | iorngcreate(10M, "manual", 1234567890);
|
|---|
| 22 |
|
|---|
| 23 | print("Testing VDI");
|
|---|
| 24 |
|
|---|
| 25 | /* Create disk containers, read verification is on. */
|
|---|
| 26 | createdisk("disk", true /* fVerify */);
|
|---|
| 27 | /* Create the disk. */
|
|---|
| 28 | create("disk", "base", "tstCompact.vdi", "dynamic", "VDI", 2G, false /* fIgnoreFlush */, false);
|
|---|
| 29 | /* Fill the disk with random data */
|
|---|
| 30 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 100, "none");
|
|---|
| 31 | /* Read the data to verify it once. */
|
|---|
| 32 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 0, "none");
|
|---|
| 33 | close("disk", "single", false);
|
|---|
| 34 |
|
|---|
| 35 | open("disk", "tstCompact.vdi", "VDI", true, false, false, true, false, false);
|
|---|
| 36 | printfilesize("disk", 0);
|
|---|
| 37 | discard("disk", true, "6,0M,512K,1M,512K,2M,512K,3M,512K,4M,512K,5M,512K");
|
|---|
| 38 | discard("disk", true, "6,6M,512K,7M,512K,8M,512K,9M,512K,10M,512K,11M,512K");
|
|---|
| 39 | discard("disk", true, "1,512K,512K");
|
|---|
| 40 | discard("disk", false, "1,1024K,64K");
|
|---|
| 41 | printfilesize("disk", 0);
|
|---|
| 42 |
|
|---|
| 43 | print("Discard whole block");
|
|---|
| 44 | discard("disk", true, "1,20M,1M");
|
|---|
| 45 | printfilesize("disk", 0);
|
|---|
| 46 |
|
|---|
| 47 | print("Split Discard");
|
|---|
| 48 | discard("disk", true, "1,21M,512K");
|
|---|
| 49 | printfilesize("disk", 0);
|
|---|
| 50 | discard("disk", true, "1,22016K,512K");
|
|---|
| 51 | printfilesize("disk", 0);
|
|---|
| 52 |
|
|---|
| 53 | /* Cleanup */
|
|---|
| 54 | close("disk", "single", true);
|
|---|
| 55 | destroydisk("disk");
|
|---|
| 56 |
|
|---|
| 57 | /* Destroy RNG and pattern */
|
|---|
| 58 | iorngdestroy();
|
|---|
| 59 | }
|
|---|
