| 1 | /* $Id: tstVDCompact.vd 82968 2020-02-04 10:35:17Z vboxsync $ */
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| 2 | /**
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| 3 | * Storage: Testcase for compacting disks.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2011-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | void tstCompact(string strMsg, string strBackend)
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| 19 | {
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| 20 | print(strMsg);
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| 21 |
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| 22 | /* Create disk containers, read verification is on. */
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| 23 | createdisk("disk", true);
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| 24 | create("disk", "base", "tstCompact.disk", "dynamic", strBackend, 200M, false, false);
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| 25 |
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| 26 | /* Fill the disk with random data. */
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| 27 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 100, "none");
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| 28 | /* Read the data to verify it once. */
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| 29 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 0, "none");
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| 30 | /* Fill a part with 0's. */
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| 31 | io("disk", false, 1, "seq", 64K, 100M, 150M, 50M, 100, "zero");
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| 32 |
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| 33 | /* Now compact. */
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| 34 | compact("disk", 0);
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| 35 | /* Read again to verify that the content hasn't changed. */
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| 36 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 0, "none");
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| 37 | /* Fill everything with 0. */
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| 38 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 100, "zero");
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| 39 | /* Now compact again. */
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| 40 | compact("disk", 0);
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| 41 | /* Read again to verify that the content hasn't changed. */
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| 42 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 0, "none");
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| 43 |
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| 44 | close("disk", "single", true);
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| 45 | destroydisk("disk");
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| 46 | }
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| 47 |
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| 48 | void tstSnapshotCompact(string strMsg, string strBackend)
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| 49 | {
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| 50 | print(strMsg);
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| 51 |
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| 52 | /* Create disk containers, read verification is on. */
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| 53 | createdisk("disk", true);
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| 54 | create("disk", "base", "tstCompact.disk", "dynamic", strBackend, 200M, false, false);
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| 55 |
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| 56 | /* Fill the disk with random data. */
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| 57 | io("disk", false, 1, "seq", 64K, 0, 100M, 100M, 100, "none");
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| 58 |
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| 59 | create("test", "diff", "tst2.disk", "dynamic", strBackend, 200M, false /* fIgnoreFlush */, true /* fHonorSame */);
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| 60 |
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| 61 | io("disk", false, 1, "seq", 64K, 100M, 200M, 100M, 100, "none");
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| 62 | io("disk", false, 1, "seq", 64K, 100M, 150M, 50M, 100, "zero");
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| 63 |
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| 64 | create("disk", "diff", "tst3.disk", "dynamic", strBackend, 200M, false /* fIgnoreFlush */, true /* fHonorSame */);
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| 65 | merge("disk", 1, 2);
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| 66 |
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| 67 | compact("disk", 1);
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| 68 |
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| 69 | close("disk", "single", true);
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| 70 | close("disk", "single", true);
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| 71 | close("disk", "single", true);
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| 72 | destroydisk("disk");
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| 73 | }
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| 74 |
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| 75 | void main()
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| 76 | {
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| 77 | /* Init I/O RNG for generating random data for writes. */
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| 78 | iorngcreate(10M, "manual", 1234567890);
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| 79 |
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| 80 | /* Create zero pattern */
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| 81 | iopatterncreatefromnumber("zero", 1M, 0);
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| 82 |
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| 83 | tstCompact("Testing VDI", "VDI");
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| 84 | tstCompact("Testing VHD", "VHD");
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| 85 |
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| 86 | tstSnapshotCompact("Testing Snapshot VDI", "VDI");
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| 87 | tstSnapshotCompact("Testing Snapshot VHD", "VHD");
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| 88 |
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| 89 | /* Destroy RNG and pattern */
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| 90 | iopatterndestroy("zero");
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| 91 | iorngdestroy();
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| 92 | }
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