blob: 7f8b403a5de5ffd79cc28392006087bf65a3ff74 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
#!/bin/sh
#
# boiler.sh
# Adam Carpenter - 2017 - acarpent - acarpenter@email.wm.edu
# Utilizes code from P. Kearns - 2004
#
# **** Initializations ****
tempFile="./beetle.temp"
dataFile="./beetle.data"
plotfile=""
lifetimeAwk='BEGIN { FS = " "; } NF == 11 {print $1 " " $11}'
usage="boiler: usage: ./boiler -n num -i min max step {-p plotfile.png} | -r statefile"
trap 'cleanExit' INT
trap 'giveCurrent' USR1
trap 'dumpState' USR2
# **** Function declarations ****
cleanExit() {
kill -9 "$pid" 2>/dev/null
rm -f $tempFile
echo
exit 0
}
giveCurrent() {
echo $min
}
dumpState() {
kill -9 "$pid" 2>/dev/null
stateFile="./beetle.state"
echo $num > $stateFile
echo $min >> $stateFile
echo $max >> $stateFile
echo $step >> $stateFile
echo $plotFile >> $stateFile
exec 3<$tempFile
while read -u 3 line; do
echo "$line" >> $stateFile
done
exec 3<&-
rm -f $tempFile
echo
exit 0
}
beetlejuice() {
# beetlejuice
# beetlejuice
if [ -f ./beetle ]; then
./beetle $min $num >> $tempFile &
else
/home/f85/kearns/public/415/p6/beetle $min $num >> $tempFile &
fi
pid=$!
while ps -p $pid --format pid= > /dev/null; do
: # Just waiting for traps.
done
min=`expr $min + $step`
}
# **** Main script ****
# Remove any residual temp file (should be a nonissue).
rm -f $tempFile
rm -f $dataFile
# Make sure there are arguments.
if [ -z $1 ]; then
echo $usage
exit 1
fi
if [ $1 = "-r" ]; then # Operating in restore mode.
shift
if [ ! -e $1 ]; then
echo boiler: state file not found
exit 1
fi
# Get state file and read in beetle arguments.
if [ ! -z $1 ]; then
stateFile=$1
exec 3<$stateFile
read -u 3 line
num=$line
read -u 3 line
min=$line
read -u 3 line
max=$line
read -u 3 line
step=$line
read -u 3 line
plotFile=$line
while read -u 3 line; do
echo "$line" >> $tempFile
done
exec 3<&-
else
echo $usage
exit 1
fi
else # Operating in normal mode.
while [ "$1" != "" ]; do
case $1 in
# Get num.
"-n")
shift
if [ ! -z $1 ]; then
num=$1
else
echo $usage
exit 1
fi
;;
# Get min, max, and step.
"-i")
shift
if [ ! -z $1 ]; then
min=$1
else
echo $usage
exit 1
fi
shift
if [ ! -z $1 ]; then
max=$1
else
echo $usage
exit 1
fi
shift
if [ ! -z $1 ]; then
step=$1
else
echo $usage
exit 1
fi
;;
# Get plotfile if requested.
"-p")
shift
if [ ! -z $1 ]; then
plotFile=$1
else
echo $usage
exit 1
fi
;;
# Catch extraneous args.
*)
echo $usage
exit 1
;;
esac
shift
done
fi
# Make sure required vars were set correctly.
if [ -z $num ] || [ -z $min ] || [ -z $max ] || [ -z $step ]; then
echo $usage
exit 1
fi
# I researched methods of checking whether a variable is an integer online
# for shell scripts (where variables aren't declared or strongly typed) and I
# found a method of comparing strings to regular expressions, where any
# character that isn't a numeric is incorrect.
case $num in
''|*[!0-9]*) echo $usage; exit 1;;
*);;
esac
case $min in
''|*[!0-9]*) echo $usage; exit 1;;
*);;
esac
case $max in
''|*[!0-9]*) echo $usage; exit 1;;
*);;
esac
case $step in
''|*[!0-9]*) echo $usage; exit 1;;
*);;
esac
# Run the first simulaton to ensure it gets done no matter the size of max.
beetlejuice
# Run the remaining beetle simulations.
while [ $min -lt $max ] || [ $min -eq $max ]; do
beetlejuice
done
# Use awk to pull data from tempFile and print it out.
awk "$lifetimeAwk" "$tempFile"
# If a plot was requested, plot the data into the given filename.
if [ ! -z $plotFile ]; then
awk "$lifetimeAwk" "$tempFile" >> $dataFile
gnuplot <<- EOF
set xlabel "Square Side (inches)"
set ylabel "Mean Beetle Lifetime (seconds)"
set term png
set output "$plotFile"
plot "$dataFile" using 1:2 title ""
EOF
rm -f $dataFile
fi
rm -f $tempFile
|