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
89scale=5;
90if ($_min <= $_given_val) 1;
91if ($_min > $_given_val) 0;
92EOF
93
94  cat <<EOF >$tmp.bc.2
95scale=5;
96if ($_given_val <= $_max) 1;
97if ($_given_val > $_max) 0;
98EOF
99
100  _above_min=`bc <$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 occurrences of the actual TEST_DIR value with TEST_DIR
132_filter_testdir()
133{
134    sed -e "s#$TEST_DIR#TEST_DIR#g"
135}
136
137# replace occurrences of the actual IMGFMT value with IMGFMT
138_filter_imgfmt()
139{
140    sed -e "s#$IMGFMT#IMGFMT#g"
141}
142
143# Removes \r from messages
144_filter_win32()
145{
146    sed -e 's/\r//g'
147}
148
149# sanitize qemu-io output
150_filter_qemu_io()
151{
152    _filter_win32 | sed -e "s/[0-9]* ops\; [0-9/:. sec]* ([0-9/.inf]* [EPTGMKiBbytes]*\/sec and [0-9/.inf]* ops\/sec)/X ops\; XX:XX:XX.X (XXX YYY\/sec and XXX ops\/sec)/" \
153        -e "s/: line [0-9][0-9]*:  *[0-9][0-9]*\( Aborted\)/:\1/" \
154        -e "s/qemu-io> //g"
155}
156
157# replace occurrences of QEMU_PROG with "qemu"
158_filter_qemu()
159{
160    sed -e "s#\\(^\\|(qemu) \\)$(basename $QEMU_PROG):#\1QEMU_PROG:#" \
161        -e 's#^QEMU [0-9]\+\.[0-9]\+\.[0-9]\+ monitor#QEMU X.Y.Z monitor#' \
162        -e $'s#\r##' # QEMU monitor uses \r\n line endings
163}
164
165# replace problematic QMP output like timestamps
166_filter_qmp()
167{
168    _filter_win32 | \
169    sed -e 's#\("\(micro\)\?seconds": \)[0-9]\+#\1 TIMESTAMP#g' \
170        -e 's#^{"QMP":.*}$#QMP_VERSION#'
171}
172
173# make sure this script returns success
174/bin/true
175