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 . $STF_SUITE/tests/functional/truncate/truncate.cfg
  29 . $STF_SUITE/include/libtest.shlib
  30 
  31 #
  32 # DESCRIPTION:
  33 # Tests file truncation within ZFS.
  34 #
  35 # STRATEGY:
  36 # 1. Open file
  37 # 2. Write random blocks in random places
  38 # 3. Truncate the file
  39 # 4. Repeat steps 2 and 3 lots of times
  40 # 5. Close the file.
  41 #
  42 
  43 verify_runnable "global"
  44 
  45 function cleanup
  46 {
  47         [[ -e $TESTDIR ]] && log_must $RM -rf $TESTDIR/*
  48 }
  49 
  50 log_assert "Ensure file with random blocks is truncated properly"
  51 
  52 options=""
  53 options_display="default options"
  54 
  55 log_onexit cleanup
  56 
  57 [[ -n "$TRUNC_FILESIZE" ]] && options=" $options -f $TRUNC_FILESIZE "
  58 
  59 [[ -n "$TRUNC_BLKSIZE" ]] && options="$options -b $TRUNC_BLKSIZE "
  60 
  61 [[ -n "$TRUNC_COUNT" ]] && options="$options -c $TRUNC_COUNT "
  62 
  63 [[ -n "$TRUNC_SEED" ]] && options="$options -s $TRUNC_SEED "
  64 
  65 [[ -n "$TRUNC_FILEOFFSET" ]] && options="$options -o $TRUNC_FILEOFFSET "
  66 
  67 [[ -n "$options" ]] && options_display=$options
  68 
  69 log_note "Invoking $FILE_TRUNC with: $options_display"
  70 log_must $FILE_TRUNC $options $TESTDIR/$TESTFILE
  71 
  72 typeset dir=$(get_device_dir $DISKS)
  73 verify_filesys "$TESTPOOL" "$TESTPOOL/$TESTFS" "$dir"
  74 
  75 log_pass "Random blocks have been truncated properly."