loncom/lonsql - diff

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Diff for /loncom/lonsql between versions 1.2 and 1.7

version 1.2, 2000/06/26 02:42:42	version 1.7, 2001/03/22 15:21:54
Line 1	Line 1
#!/usr/bin/perl	#!/usr/bin/perl
# lonsql-based on the preforker:harsha jagasia:date:5/10/00	# lonsql-based on the preforker:harsha jagasia:date:5/10/00
	# 7/25 Gerd Kortemeyer
	# many different dates Scott Harrison
	# 03/22/2001 Scott Harrison
use IO::Socket;	use IO::Socket;
use Symbol;	use Symbol;
use POSIX;	use POSIX;
Line 27 while ($configline=<CONFIG>) {	Line 29 while ($configline=<CONFIG>) {
}	}
close(CONFIG);	close(CONFIG);

	# --------------------------------------------- Check if other instance running

	my $pidfile="$perlvar{'lonDaemons'}/logs/lonsql.pid";

	if (-e $pidfile) {
	my $lfh=IO::File->new("$pidfile");
	my $pide=<$lfh>;
	chomp($pide);
	if (kill 0 => $pide) { die "already running"; }
	}

# ------------------------------------------------------------- Read hosts file	# ------------------------------------------------------------- Read hosts file
$PREFORK=4; # number of children to maintain, at least four spare	$PREFORK=4; # number of children to maintain, at least four spare

Line 168 sub make_new_child {	Line 181 sub make_new_child {
#open database handle	#open database handle
# making dbh global to avoid garbage collector	# making dbh global to avoid garbage collector
unless (	unless (
$dbh = DBI->connect("DBI:mysql:loncapa","www","newmysql",{ RaiseError =>1,})	$dbh = DBI->connect("DBI:mysql:loncapa","www","123",{ RaiseError =>0,PrintError=>0})
) {	) {
my $st=120+int(rand(240));	my $st=120+int(rand(240));
&logthis("<font color=blue>WARNING: Couldn't connect to database ($st secs): $@</font>");	&logthis("<font color=blue>WARNING: Couldn't connect to database ($st secs): $@</font>");
Line 189 sub make_new_child {	Line 202 sub make_new_child {
my $userinput = <$client>;	my $userinput = <$client>;
chomp($userinput);	chomp($userinput);

my ($conserver,$query)=split(/&/,$userinput);	my ($conserver,$querytmp,$customtmp)=split(/&/,$userinput);
	my $query=unescape($querytmp);
	my $custom=unescape($customtmp);

#send query id which is pid_unixdatetime_runningcounter	#send query id which is pid_unixdatetime_runningcounter
$queryid = $thisserver;	$queryid = $thisserver;
Line 199 sub make_new_child {	Line 214 sub make_new_child {
print $client "$queryid\n";	print $client "$queryid\n";

#prepare and execute the query	#prepare and execute the query
# my $sth = $dbh->prepare($query);	my $sth = $dbh->prepare($query);
# unless ($sth->execute())	my $result;
# {	unless ($sth->execute())
# &logthis(	{
# "<font color=blue>WARNING: Could not retrieve from database: $@</font>"	&logthis("<font color=blue>WARNING: Could not retrieve from database: $@</font>");
# );	$result="";
# }	}
# my $result=$sth->fetch(???);	else {
$result="123";	my $r1=$sth->fetchall_arrayref;
	my @r2; map {my $a=$_; my @b=map {escape($_)} @$a; push @r2,join(",", @b)} (@$r1);
	$result=join("&",@r2) . "\n";
	}

	# do custom metadata searching here and build into result

&reply("queryreply:$queryid:$result",$conserver);	&reply("queryreply:$queryid:$result",$conserver);

}	}
Line 262 sub reply {	Line 283 sub reply {
return $answer;	return $answer;
}	}

	# -------------------------------------------------------- Escape Special Chars

	sub escape {
	my $str=shift;
	$str =~ s/(\W)/"%".unpack('H2',$1)/eg;
	return $str;
	}

	# ----------------------------------------------------- Un-Escape Special Chars

	sub unescape {
	my $str=shift;
	$str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
	return $str;
	}

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Removed from v.1.2
changed lines
	Added in v.1.7