common.filter

   1 #!/bin/bash
   2 #
   3 # Copyright (C) 2009 Red Hat, Inc.
   4 # Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
   5 #
   6 # This program is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU General Public License as
   8 # published by the Free Software Foundation.
   9 #
  10 # This program is distributed in the hope that it would be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18 #
  19 # standard filters
  20 #
  21
  22 # Checks that given_value is in range of correct_value +/- tolerance.
  23 # Tolerance can be an absolute value or a percentage of the correct value
  24 # (see examples with tolerances below).
  25 # Outputs suitable message to stdout if it's not in range.
  26 #
  27 # A verbose option, -v, may be used as the LAST argument
  28 #
  29 # e.g.
  30 # foo: 0.0298 = 0.03 +/- 5%
  31 # _within_tolerance "foo" 0.0298 0.03 5%
  32 #
  33 # foo: 0.0298 = 0.03 +/- 0.01
  34 # _within_tolerance "foo" 0.0298 0.03 0.01
  35 #
  36 # foo: 0.0298 = 0.03 -0.01 +0.002
  37 # _within_tolerance "foo" 0.0298 0.03 0.01 0.002
  38 #
  39 # foo: verbose output of 0.0298 = 0.03 +/- 5%
  40 # _within_tolerance "foo" 0.0298 0.03 5% -v
  41 _within_tolerance()
  42 {
  43   _name=$1
  44   _given_val=$2
  45   _correct_val=$3
  46   _mintol=$4
  47   _maxtol=$_mintol
  48   _verbose=0
  49   _debug=false
  50
  51   # maxtol arg is optional
  52   # verbose arg is optional
  53   if [ $# -ge 5 ]
  54   then
  55      if [ "$5" = "-v" ]
  56      then
  57         _verbose=1
  58      else
  59         _maxtol=$5
  60      fi
  61   fi
  62   if [ $# -ge 6 ]
  63   then
  64      [ "$6" = "-v" ] && _verbose=1
  65   fi
  66
  67   # find min with or without %
  68   _mintolerance=`echo $_mintol | sed -e 's/%//'`
  69   if [ $_mintol = $_mintolerance ]
  70   then
  71       _min=`echo "scale=5; $_correct_val-$_mintolerance" | bc`
  72   else
  73       _min=`echo "scale=5; $_correct_val-$_mintolerance*0.01*$_correct_val" | bc`
  74   fi
  75
  76   # find max with or without %
  77   _maxtolerance=`echo $_maxtol | sed -e 's/%//'`
  78   if [ $_maxtol = $_maxtolerance ]
  79   then
  80       _max=`echo "scale=5; $_correct_val+$_maxtolerance" | bc`
  81   else
  82       _max=`echo "scale=5; $_correct_val+$_maxtolerance*0.01*$_correct_val" | bc`
  83   fi
  84
  85   $_debug && echo "min = $_min"
  86   $_debug && echo "max = $_max"
  87
  88   cat <<EOF >$tmp.bc.1
  89 scale=5;
  90 if ($_min <= $_given_val) 1;
  91 if ($_min > $_given_val) 0;
  92 EOF
  93
  94   cat <<EOF >$tmp.bc.2
  95 scale=5;
  96 if ($_given_val <= $_max) 1;
  97 if ($_given_val > $_max) 0;
  98 EOF
  99
 100   _above_min=`bc <$tmp.bc.1`
 101   _below_max=`bc <$tmp.bc.2`
 102
 103   rm -f $tmp.bc.[12]
 104
 105   _in_range=`expr $_above_min \& $_below_max`
 106
 107   # fix up min, max precision for output
 108   # can vary for 5.3, 6.2
 109   _min=`echo $_min | sed -e 's/0*$//'` # get rid of trailling zeroes
 110   _max=`echo $_max | sed -e 's/0*$//'` # get rid of trailling zeroes
 111
 112   if [ $_in_range -eq 1 ]
 113   then
 114         [ $_verbose -eq 1 ] && echo $_name is in range
 115         return 0
 116   else
 117         [ $_verbose -eq 1 ] && echo $_name has value of $_given_val
 118         [ $_verbose -eq 1 ] && echo $_name is NOT in range $_min .. $_max
 119         return 1
 120   fi
 121 }
 122
 123 # ctime(3) dates
 124 #
 125 _filter_date()
 126 {
 127     sed \
 128         -e 's/[A-Z][a-z][a-z] [A-z][a-z][a-z]  *[0-9][0-9]* [0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9][0-9][0-9][0-9]$/DATE/'
 129 }
 130
 131 # replace occurances of the actual TEST_DIR value with TEST_DIR
 132 _filter_testdir()
 133 {
 134     sed -e "s#$TEST_DIR#TEST_DIR#g"
 135 }
 136
 137 # sanitize qemu-io output
 138 _filter_qemu_io()
 139 {
 140     sed -e "s/[0-9]* ops\; [0-9/:. sec]* ([0-9/.]* [GMKiBbytes]*\/sec and [0-9/.]* ops\/sec)/X ops\; XX:XX:XX.X (XXX YYY\/sec and XXX ops\/sec)/"
 141 }
 142
 143 # make sure this script returns success
 144 /bin/true