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|
#!/usr/bin/perl -w
# Runs third, a Linux utility to check for memory leaks.
# Alternatives are third (3rd degree) on OSF
# or purify (purify.pl) on Irix and Solaris
#
# Valgrind is free software, with documentation online at
# http://devel-home.kde.org/~sewardj/docs/index.html
#
# Valgrind requires EMBOSS built with shared libraries
sub runtest ($) {
my ($name) = @_;
print "Run third test $name\n";
my $defbytes = 0;
my $posbytes = 0;
my $rembytes = 0;
my $errcount = 0;
my $timeout = 300;
my $timealarm = 0;
if (defined($tests{$name})) {
if (defined($testcheck{$name})) {
$myvalgpath = "../../emboss/";
}
else {
$myvalgpath = $valgpath;
}
print "Running third $thirdopts $myvalgpath$tests{$name}\n";
eval {
$status = 0;
alarm($timeout);
$sysstat = system ("third $thirdopts $myvalgpath$tests{$name}" );
alarm(0);
$status = $sysstat >> 8;
};
if ($@) { # error from eval block
if ($@ =~ /memtest timeout/) { # timeout signal handler
$timealarm = 1; # set timeout flag and continue
}
else { # other signal - fail
die;
}
}
if ($timealarm) {
print STDERR "Third test $name timed out\n";
return -1;
}
open (TEST, "$name.3log") ||
die "Failed to open $name.3log";
while (<TEST>) {
if (/definitely lost: +(\d+) bytes in (\d+) blocks/) {
$defbytes=$1;
#$defblock=$2;
}
if (/possibly lost: +(\d+) bytes in (\d+) blocks/) {
$posbytes=$1;
#$posblock=$2;
}
if (/still reachable: +(\d+) bytes in (\d+) blocks/) {
$rembytes=$1;
#$remblock=$2;
}
if (/ERROR SUMMARY: +(\d+) errors from (\d+) contexts/) {
$errcount=$1;
#$remblock=$2;
}
}
if ($status) {
print STDERR "Third test $name returned status $status\n";
}
else {
if ($errcount){
print STDERR "Third test $name errors $errcount\n";
}
elsif ($defbytes){
print STDERR "Thirdtest $name leak $defbytes (possibly $posbytes) bytes, still reachable $rembytes bytes\n";
}
elsif (defined($rembytes)) {
print STDERR "Third test $name OK (still reachable $rembytes bytes)\n";
}
else {
print STDERR "Third test $name OK (all clean)\n";
}
}
return $status;
}
else {
print STDERR "ERROR: Unknown test $name \n";
return -1;
}
}
%tests = ();
%testcheck = ();
if (defined($ENV{ETHIRD})) {
$valgpath = $ENV{ETHIRD}."/";
}
else {
$valgpath = "";
}
open (MEMTEST, "../memtest.dat");
while (<MEMTEST>) {
if (/^[#]/) {next}
if (/(\S+) += +(\S.*)/) {
$tests{$1}="$2";
}
if (/(\S+) +=test= +(\S.*)/) {
$tests{$1}="$2";
$testcheck{$1} = 1;
}
}
close MEMTEST;
$thirdopts = "-invalid -uninit h+s -dirname third";
## -invalid
## -uninit h+s test unitialized heap and stack values
## -dirname third Writes to subdirectory third/
@dotest = @ARGV;
$SIG{ALRM} = sub { print STDERR "+++ timeout handler\n"; die "memtest timeout" };
foreach $name (@dotest) {
if ($name =~ /^-(\S+)$/) {
$arg = $1;
if ($arg eq "all") {
foreach $x (sort (keys (%tests))) {
runtest($x);
}
exit;
}
elsif ($arg eq "list") {
foreach $x (sort (keys (%tests))) {
printf "%-15s %s\n", $x, $tests{$x};
}
exit;
}
elsif ($arg =~ /block=(\d+)/) {
$block=$1;
$i=0;
$blocksize=10;
$blockcount=0;
foreach $x (sort (keys (%tests))) {
if (!$i) {
$blockcount++;
}
$i++;
if ($i >= $blocksize) {$i=0}
if ($blockcount == $block) {
runtest($x);
}
}
exit;
}
else {
print STDERR "Invalid argument $name (ignored)\n";
next;
}
}
runtest ($name);
}
exit();
|
