[44943] | 1 | /* $Id: tstVDCompact.vd 98103 2023-01-17 14:15:46Z 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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[36635] | 5 |
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[44943] | 6 | /*
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[98103] | 7 | * Copyright (C) 2011-2023 Oracle and/or its affiliates.
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[44943] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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[44943] | 26 | */
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[36635] | 27 |
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[44943] | 28 | void tstCompact(string strMsg, string strBackend)
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| 29 | {
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| 30 | print(strMsg);
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[36635] | 31 |
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[44943] | 32 | /* Create disk containers, read verification is on. */
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| 33 | createdisk("disk", true);
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[52371] | 34 | create("disk", "base", "tstCompact.disk", "dynamic", strBackend, 200M, false, false);
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[36635] | 35 |
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[44943] | 36 | /* Fill the disk with random data. */
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| 37 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 100, "none");
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| 38 | /* Read the data to verify it once. */
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| 39 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 0, "none");
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| 40 | /* Fill a part with 0's. */
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| 41 | io("disk", false, 1, "seq", 64K, 100M, 150M, 50M, 100, "zero");
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[36635] | 42 |
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[44943] | 43 | /* Now compact. */
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| 44 | compact("disk", 0);
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| 45 | /* Read again to verify that the content hasn't changed. */
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| 46 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 0, "none");
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| 47 | /* Fill everything with 0. */
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| 48 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 100, "zero");
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| 49 | /* Now compact again. */
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| 50 | compact("disk", 0);
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| 51 | /* Read again to verify that the content hasn't changed. */
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| 52 | io("disk", false, 1, "seq", 64K, 0, 200M, 200M, 0, "none");
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[36637] | 53 |
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[44943] | 54 | close("disk", "single", true);
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| 55 | destroydisk("disk");
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| 56 | }
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[36635] | 57 |
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[52371] | 58 | void tstSnapshotCompact(string strMsg, string strBackend)
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| 59 | {
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| 60 | print(strMsg);
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| 61 |
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| 62 | /* Create disk containers, read verification is on. */
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| 63 | createdisk("disk", true);
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| 64 | create("disk", "base", "tstCompact.disk", "dynamic", strBackend, 200M, false, false);
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| 65 |
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| 66 | /* Fill the disk with random data. */
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| 67 | io("disk", false, 1, "seq", 64K, 0, 100M, 100M, 100, "none");
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| 68 |
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| 69 | create("test", "diff", "tst2.disk", "dynamic", strBackend, 200M, false /* fIgnoreFlush */, true /* fHonorSame */);
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| 70 |
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| 71 | io("disk", false, 1, "seq", 64K, 100M, 200M, 100M, 100, "none");
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| 72 | io("disk", false, 1, "seq", 64K, 100M, 150M, 50M, 100, "zero");
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| 73 |
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| 74 | create("disk", "diff", "tst3.disk", "dynamic", strBackend, 200M, false /* fIgnoreFlush */, true /* fHonorSame */);
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| 75 | merge("disk", 1, 2);
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| 76 |
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| 77 | compact("disk", 1);
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| 78 |
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| 79 | close("disk", "single", true);
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[66664] | 80 | close("disk", "single", true);
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| 81 | close("disk", "single", true);
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[52371] | 82 | destroydisk("disk");
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| 83 | }
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| 84 |
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[44943] | 85 | void main()
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| 86 | {
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| 87 | /* Init I/O RNG for generating random data for writes. */
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| 88 | iorngcreate(10M, "manual", 1234567890);
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| 89 |
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| 90 | /* Create zero pattern */
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| 91 | iopatterncreatefromnumber("zero", 1M, 0);
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| 92 |
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| 93 | tstCompact("Testing VDI", "VDI");
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| 94 | tstCompact("Testing VHD", "VHD");
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| 95 |
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[52371] | 96 | tstSnapshotCompact("Testing Snapshot VDI", "VDI");
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| 97 | tstSnapshotCompact("Testing Snapshot VHD", "VHD");
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| 98 |
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[44943] | 99 | /* Destroy RNG and pattern */
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| 100 | iopatterndestroy("zero");
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| 101 | iorngdestroy();
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| 102 | }
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