439 lines
12 KiB
Perl
Executable file
439 lines
12 KiB
Perl
Executable file
#!/usr/bin/perl
|
|
#######################################################################
|
|
# driver.pl - CS:APP Data Lab driver
|
|
#
|
|
# Copyright (c) 2004-2011, R. Bryant and D. O'Hallaron, All rights
|
|
# reserved. May not be used, modified, or copied without permission.
|
|
#
|
|
# Note: The driver can use either btest or the BDD checker to check
|
|
# puzzles for correctness. This version of the lab uses btest, which
|
|
# has been extended to do better testing of both integer and
|
|
# floating-point puzzles.
|
|
#
|
|
#######################################################################
|
|
|
|
use strict 'vars';
|
|
use Getopt::Std;
|
|
|
|
use lib ".";
|
|
use Driverlib;
|
|
|
|
# Set to 1 to use btest, 0 to use the BDD checker.
|
|
my $USE_BTEST = 1;
|
|
|
|
# Generic settings
|
|
$| = 1; # Flush stdout each time
|
|
umask(0077); # Files created by the user in tmp readable only by that user
|
|
$ENV{PATH} = "/usr/local/bin:/usr/bin:/bin";
|
|
|
|
#
|
|
# usage - print help message and terminate
|
|
#
|
|
sub usage {
|
|
printf STDERR "$_[0]\n";
|
|
printf STDERR "Usage: $0 [-h] [-u \"nickname\"]\n";
|
|
printf STDERR "Options:\n";
|
|
printf STDERR " -h Print this message.\n";
|
|
printf STDERR " -u \"nickname\" Send autoresult to server, using nickname on scoreboard)\n";
|
|
die "\n";
|
|
}
|
|
|
|
##############
|
|
# Main routine
|
|
##############
|
|
my $login = getlogin() || (getpwuid($<))[0] || "unknown";
|
|
my $tmpdir = "/var/tmp/datalab.$login.$$";
|
|
my $diemsg = "The files are in $tmpdir.";
|
|
|
|
my $driverfiles;
|
|
my $infile;
|
|
my $autograded;
|
|
|
|
my $status;
|
|
my $inpuzzles;
|
|
my $puzzlecnt;
|
|
my $line;
|
|
my $blank;
|
|
my $name;
|
|
my $c_points;
|
|
my $c_rating;
|
|
my $c_errors;
|
|
my $p_points;
|
|
my $p_rating;
|
|
my $p_errors;
|
|
my $total_c_points;
|
|
my $total_c_rating;
|
|
my $total_p_points;
|
|
my $total_p_rating;
|
|
my $tops;
|
|
my $tpoints;
|
|
my $trating;
|
|
my $foo;
|
|
my $name;
|
|
my $msg;
|
|
my $nickname;
|
|
my $autoresult;
|
|
|
|
my %puzzle_c_points;
|
|
my %puzzle_c_rating;
|
|
my %puzzle_c_errors;
|
|
my %puzzle_p_points;
|
|
my %puzzle_p_ops;
|
|
my %puzzle_p_maxops;
|
|
my %puzzle_number;
|
|
|
|
|
|
# Parse the command line arguments
|
|
no strict;
|
|
getopts('hu:f:A');
|
|
if ($opt_h) {
|
|
usage();
|
|
}
|
|
|
|
# The default input file is bits.c (change with -f)
|
|
$infile = "bits.c";
|
|
$nickname = "";
|
|
|
|
#####
|
|
# These are command line args that every driver must support
|
|
#
|
|
|
|
# Causes the driver to send an autoresult to the server on behalf of user
|
|
if ($opt_u) {
|
|
$nickname = $opt_u;
|
|
check_nickname($nickname);
|
|
}
|
|
|
|
# Hidden flag that indicates that the driver was invoked by an autograder
|
|
if ($opt_A) {
|
|
$autograded = $opt_A;
|
|
}
|
|
|
|
#####
|
|
# Drivers can also define an arbitary number of other command line args
|
|
#
|
|
# Optional hidden flag used by the autograder
|
|
if ($opt_f) {
|
|
$infile = $opt_f;
|
|
}
|
|
|
|
use strict 'vars';
|
|
|
|
################################################
|
|
# Compute the correctness and performance scores
|
|
################################################
|
|
|
|
# Make sure that an executable dlc (data lab compiler) exists
|
|
(-e "./dlc" and -x "./dlc")
|
|
or die "$0: ERROR: No executable dlc binary.\n";
|
|
|
|
|
|
# If using the bdd checker, then make sure it exists
|
|
if (!$USE_BTEST) {
|
|
(-e "./bddcheck/cbit/cbit" and -x "./bddcheck/cbit/cbit")
|
|
or die "$0: ERROR: No executable cbit binary.\n";
|
|
}
|
|
|
|
#
|
|
# Set up the contents of the scratch directory
|
|
#
|
|
system("mkdir $tmpdir") == 0
|
|
or die "$0: Could not make scratch directory $tmpdir.\n";
|
|
|
|
# Copy the student's work to the scratch directory
|
|
unless (system("cp $infile $tmpdir/bits.c") == 0) {
|
|
clean($tmpdir);
|
|
die "$0: Could not copy file $infile to scratch directory $tmpdir.\n";
|
|
}
|
|
|
|
# Copy the various autograding files to the scratch directory
|
|
if ($USE_BTEST) {
|
|
$driverfiles = "Makefile dlc btest.c decl.c tests.c btest.h bits.h";
|
|
unless (system("cp -r $driverfiles $tmpdir") == 0) {
|
|
clean($tmpdir);
|
|
die "$0: Could not copy autogradingfiles to $tmpdir.\n";
|
|
}
|
|
}
|
|
else {
|
|
$driverfiles = "dlc tests.c bddcheck";
|
|
unless (system("cp -r $driverfiles $tmpdir") == 0) {
|
|
clean($tmpdir);
|
|
die "$0: Could not copy support files to $tmpdir.\n";
|
|
}
|
|
}
|
|
|
|
# Change the current working directory to the scratch directory
|
|
unless (chdir($tmpdir)) {
|
|
clean($tmpdir);
|
|
die "$0: Could not change directory to $tmpdir.\n";
|
|
}
|
|
|
|
#
|
|
# Generate a zapped (for coding rules) version of bits.c. In this
|
|
# zapped version of bits.c, any functions with illegal operators are
|
|
# transformed to have empty function bodies.
|
|
#
|
|
print "1. Running './dlc -z' to identify coding rules violations.\n";
|
|
system("cp bits.c save-bits.c") == 0
|
|
or die "$0: ERROR: Could not create backup copy of bits.c. $diemsg\n";
|
|
system("./dlc -z -o zap-bits.c bits.c") == 0
|
|
or die "$0: ERROR: zapped bits.c did not compile. $diemsg\n";
|
|
|
|
#
|
|
# Run btest or BDD checker to determine correctness score
|
|
#
|
|
if ($USE_BTEST) {
|
|
print "\n2. Compiling and running './btest -g' to determine correctness score.\n";
|
|
system("cp zap-bits.c bits.c");
|
|
|
|
# Compile btest
|
|
system("make btestexplicit") == 0
|
|
or die "$0: Could not make btest in $tmpdir. $diemsg\n";
|
|
|
|
# Run btest
|
|
$status = system("./btest -g > btest-zapped.out 2>&1");
|
|
if ($status != 0) {
|
|
die "$0: ERROR: btest check failed. $diemsg\n";
|
|
}
|
|
}
|
|
else {
|
|
print "\n2. Running './bddcheck/check.pl -g' to determine correctness score.\n";
|
|
system("cp zap-bits.c bits.c");
|
|
$status = system("./bddcheck/check.pl -g > btest-zapped.out 2>&1");
|
|
if ($status != 0) {
|
|
die "$0: ERROR: BDD check failed. $diemsg\n";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Run dlc to identify operator count violations.
|
|
#
|
|
print "\n3. Running './dlc -Z' to identify operator count violations.\n";
|
|
system("./dlc -Z -o Zap-bits.c save-bits.c") == 0
|
|
or die "$0: ERROR: dlc unable to generated Zapped bits.c file.\n";
|
|
|
|
#
|
|
# Run btest or the bdd checker to compute performance score
|
|
#
|
|
if ($USE_BTEST) {
|
|
print "\n4. Compiling and running './btest -g -r 2' to determine performance score.\n";
|
|
system("cp Zap-bits.c bits.c");
|
|
|
|
# Compile btest
|
|
system("make btestexplicit") == 0
|
|
or die "$0: Could not make btest in $tmpdir. $diemsg\n";
|
|
print "\n";
|
|
|
|
# Run btest
|
|
$status = system("./btest -g -r 2 > btest-Zapped.out 2>&1");
|
|
if ($status != 0) {
|
|
die "$0: ERROR: Zapped btest failed. $diemsg\n";
|
|
}
|
|
}
|
|
else {
|
|
print "\n4. Running './bddcheck/check.pl -g -r 2' to determine performance score.\n";
|
|
system("cp Zap-bits.c bits.c");
|
|
$status = system("./bddcheck/check.pl -g -r 2 > btest-Zapped.out 2>&1");
|
|
if ($status != 0) {
|
|
die "$0: ERROR: Zapped bdd checker failed. $diemsg\n";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Run dlc to get the operator counts on the zapped input file
|
|
#
|
|
print "\n5. Running './dlc -e' to get operator count of each function.\n";
|
|
$status = system("./dlc -W1 -e zap-bits.c > dlc-opcount.out 2>&1");
|
|
if ($status != 0) {
|
|
die "$0: ERROR: bits.c did not compile. $diemsg\n";
|
|
}
|
|
|
|
#################################################################
|
|
# Collect the correctness and performance results for each puzzle
|
|
#################################################################
|
|
|
|
#
|
|
# Collect the correctness results
|
|
#
|
|
%puzzle_c_points = (); # Correctness score computed by btest
|
|
%puzzle_c_errors = (); # Correctness error discovered by btest
|
|
%puzzle_c_rating = (); # Correctness puzzle rating (max points)
|
|
|
|
$inpuzzles = 0; # Becomes true when we start reading puzzle results
|
|
$puzzlecnt = 0; # Each puzzle gets a unique number
|
|
$total_c_points = 0;
|
|
$total_c_rating = 0;
|
|
|
|
open(INFILE, "$tmpdir/btest-zapped.out")
|
|
or die "$0: ERROR: could not open input file $tmpdir/btest-zapped.out\n";
|
|
|
|
while ($line = <INFILE>) {
|
|
chomp($line);
|
|
|
|
# Notice that we're ready to read the puzzle scores
|
|
if ($line =~ /^Score/) {
|
|
$inpuzzles = 1;
|
|
next;
|
|
}
|
|
|
|
# Notice that we're through reading the puzzle scores
|
|
if ($line =~ /^Total/) {
|
|
$inpuzzles = 0;
|
|
next;
|
|
}
|
|
|
|
# Read and record a puzzle's name and score
|
|
if ($inpuzzles) {
|
|
($blank, $c_points, $c_rating, $c_errors, $name) = split(/\s+/, $line);
|
|
$puzzle_c_points{$name} = $c_points;
|
|
$puzzle_c_errors{$name} = $c_errors;
|
|
$puzzle_c_rating{$name} = $c_rating;
|
|
$puzzle_number{$name} = $puzzlecnt++;
|
|
$total_c_points += $c_points;
|
|
$total_c_rating += $c_rating;
|
|
}
|
|
|
|
}
|
|
close(INFILE);
|
|
|
|
#
|
|
# Collect the performance results
|
|
#
|
|
%puzzle_p_points = (); # Performance points
|
|
|
|
$inpuzzles = 0; # Becomes true when we start reading puzzle results
|
|
$total_p_points = 0;
|
|
$total_p_rating = 0;
|
|
|
|
open(INFILE, "$tmpdir/btest-Zapped.out")
|
|
or die "$0: ERROR: could not open input file $tmpdir/btest-Zapped.out\n";
|
|
|
|
while ($line = <INFILE>) {
|
|
chomp($line);
|
|
|
|
# Notice that we're ready to read the puzzle scores
|
|
if ($line =~ /^Score/) {
|
|
$inpuzzles = 1;
|
|
next;
|
|
}
|
|
|
|
# Notice that we're through reading the puzzle scores
|
|
if ($line =~ /^Total/) {
|
|
$inpuzzles = 0;
|
|
next;
|
|
}
|
|
|
|
# Read and record a puzzle's name and score
|
|
if ($inpuzzles) {
|
|
($blank, $p_points, $p_rating, $p_errors, $name) = split(/\s+/, $line);
|
|
$puzzle_p_points{$name} = $p_points;
|
|
$total_p_points += $p_points;
|
|
$total_p_rating += $p_rating;
|
|
}
|
|
}
|
|
close(INFILE);
|
|
|
|
#
|
|
# Collect the operator counts generated by dlc
|
|
#
|
|
open(INFILE, "$tmpdir/dlc-opcount.out")
|
|
or die "$0: ERROR: could not open input file $tmpdir/dlc-opcount.out\n";
|
|
|
|
$tops = 0;
|
|
while ($line = <INFILE>) {
|
|
chomp($line);
|
|
|
|
if ($line =~ /(\d+) operators/) {
|
|
($foo, $foo, $foo, $name, $msg) = split(/:/, $line);
|
|
$puzzle_p_ops{$name} = $1;
|
|
$tops += $1;
|
|
}
|
|
}
|
|
close(INFILE);
|
|
|
|
#
|
|
# Print a table of results sorted by puzzle number
|
|
#
|
|
print "\n";
|
|
printf("%s\t%s\n", "Correctness Results", "Perf Results");
|
|
printf("%s\t%s\t%s\t%s\t%s\t%s\n", "Points", "Rating", "Errors",
|
|
"Points", "Ops", "Puzzle");
|
|
foreach $name (sort {$puzzle_number{$a} <=> $puzzle_number{$b}}
|
|
keys %puzzle_number) {
|
|
printf("%d\t%d\t%d\t%d\t%d\t\%s\n",
|
|
$puzzle_c_points{$name},
|
|
$puzzle_c_rating{$name},
|
|
$puzzle_c_errors{$name},
|
|
$puzzle_p_points{$name},
|
|
$puzzle_p_ops{$name},
|
|
$name);
|
|
}
|
|
|
|
$tpoints = $total_c_points + $total_p_points;
|
|
$trating = $total_c_rating + $total_p_rating;
|
|
|
|
print "\nScore = $tpoints/$trating [$total_c_points/$total_c_rating Corr + $total_p_points/$total_p_rating Perf] ($tops total operators)\n";
|
|
|
|
#
|
|
# Optionally send the autoresult to the contest server if the driver
|
|
# was called with the -u command line flag.
|
|
#
|
|
if ($nickname) {
|
|
# Generate the autoresult
|
|
$autoresult = "$tpoints|$total_c_points|$total_p_points|$tops";
|
|
foreach $name (sort {$puzzle_number{$a} <=> $puzzle_number{$b}}
|
|
keys %puzzle_number) {
|
|
$autoresult .= " |$name:$puzzle_c_points{$name}:$puzzle_c_rating{$name}:$puzzle_p_points{$name}:$puzzle_p_ops{$name}";
|
|
}
|
|
|
|
# Post the autoresult to the server. The Linux login id is
|
|
# concatenated with the user-supplied nickname for some (very) loose
|
|
# authentication of submissions.
|
|
&Driverlib::driver_post("$login:$nickname", $autoresult, $autograded);
|
|
}
|
|
|
|
# Clean up and exit
|
|
clean ($tmpdir);
|
|
exit;
|
|
|
|
##################
|
|
# Helper functions
|
|
#
|
|
|
|
#
|
|
# check_nickname - Check a nickname for legality
|
|
#
|
|
sub check_nickname {
|
|
my $nickname = shift;
|
|
|
|
# Nicknames can't be empty
|
|
if (length($nickname) < 1) {
|
|
die "$0: Error: Empty nickname.\n";
|
|
}
|
|
|
|
# Nicknames can't be too long
|
|
if (length($nickname) > 35) {
|
|
die "$0: Error: Nickname exceeds 35 characters.\n";
|
|
}
|
|
|
|
# Nicknames can have restricted set of metacharacters (e.g., no #
|
|
# HTML tags)
|
|
if (!($nickname =~ /^[_-\w.,'@ ]+$/)) {
|
|
die "$0: Error: Illegal character in nickname. Only alphanumerics, apostrophes, commas, periods, dashes, underscores, and ampersands are allowed.\n";
|
|
}
|
|
|
|
# Nicknames can't be all whitespace
|
|
if ($nickname =~ /^\s*$/) {
|
|
die "$0: Error: Nickname is all whitespace.\n";
|
|
}
|
|
|
|
}
|
|
|
|
#
|
|
# clean - remove the scratch directory
|
|
#
|
|
sub clean {
|
|
my $tmpdir = shift;
|
|
system("rm -rf $tmpdir");
|
|
}
|
|
|