1 #!/usr/bin/ksh -p
   2 #
   3 # CDDL HEADER START
   4 #
   5 # The contents of this file are subject to the terms of the
   6 # Common Development and Distribution License (the "License").
   7 # You may not use this file except in compliance with the License.
   8 #
   9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10 # or http://www.opensolaris.org/os/licensing.
  11 # See the License for the specific language governing permissions
  12 # and limitations under the License.
  13 #
  14 # When distributing Covered Code, include this CDDL HEADER in each
  15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16 # If applicable, add the following below this CDDL HEADER, with the
  17 # fields enclosed by brackets "[]" replaced with your own identifying
  18 # information: Portions Copyright [yyyy] [name of copyright owner]
  19 #
  20 # CDDL HEADER END
  21 #
  22 
  23 #
  24 # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  25 # Use is subject to license terms.
  26 #
  27 
  28 #
  29 # Copyright (c) 2016 by Delphix. All rights reserved.
  30 #
  31 
  32 . $STF_SUITE/tests/functional/truncate/truncate.cfg
  33 . $STF_SUITE/include/libtest.shlib
  34 
  35 #
  36 # DESCRIPTION:
  37 # Tests file truncation within ZFS.
  38 #
  39 # STRATEGY:
  40 # 1. Open file
  41 # 2. Write random blocks in random places
  42 # 3. Truncate the file
  43 # 4. Repeat steps 2 and 3 lots of times
  44 # 5. Close the file.
  45 #
  46 
  47 verify_runnable "global"
  48 
  49 function cleanup
  50 {
  51         [[ -e $TESTDIR ]] && log_must rm -rf $TESTDIR/*
  52 }
  53 
  54 log_assert "Ensure file with random blocks is truncated properly"
  55 
  56 options=""
  57 options_display="default options"
  58 
  59 log_onexit cleanup
  60 
  61 [[ -n "$TRUNC_FILESIZE" ]] && options=" $options -f $TRUNC_FILESIZE "
  62 
  63 [[ -n "$TRUNC_BLKSIZE" ]] && options="$options -b $TRUNC_BLKSIZE "
  64 
  65 [[ -n "$TRUNC_COUNT" ]] && options="$options -c $TRUNC_COUNT "
  66 
  67 [[ -n "$TRUNC_SEED" ]] && options="$options -s $TRUNC_SEED "
  68 
  69 [[ -n "$TRUNC_FILEOFFSET" ]] && options="$options -o $TRUNC_FILEOFFSET "
  70 
  71 [[ -n "$options" ]] && options_display=$options
  72 
  73 log_note "Invoking file_trunc with: $options_display"
  74 log_must file_trunc $options $TESTDIR/$TESTFILE
  75 
  76 typeset dir=$(get_device_dir $DISKS)
  77 verify_filesys "$TESTPOOL" "$TESTPOOL/$TESTFS" "$dir"
  78 
  79 log_pass "Random blocks have been truncated properly."