--- loncom/lonsql	2000/07/02 04:01:56	1.3
+++ loncom/lonsql	2001/03/22 16:10:53	1.8
@@ -1,6 +1,8 @@
 #!/usr/bin/perl
 # 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 Symbol;
 use POSIX;
@@ -27,6 +29,17 @@ while ($configline=<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
 $PREFORK=4; # number of children to maintain, at least four spare
 
@@ -168,7 +181,7 @@ sub make_new_child {
         #open database handle
 	# making dbh global to avoid garbage collector
 	unless (
-		$dbh = DBI->connect("DBI:mysql:loncapa","www","newmysql",{ RaiseError =>0,PrintError=>0})
+		$dbh = DBI->connect("DBI:mysql:loncapa","www","123",{ RaiseError =>0,PrintError=>0})
 		) { 
 	            my $st=120+int(rand(240));
 		    &logthis("<font color=blue>WARNING: Couldn't connect to database  ($st secs): $@</font>");
@@ -189,8 +202,9 @@ sub make_new_child {
 	    my $userinput = <$client>;
 	    chomp($userinput);
 	    	    
-	    my ($conserver,$querytmp)=split(/&/,$userinput);
+	    my ($conserver,$querytmp,$customtmp)=split(/&/,$userinput);
 	    my $query=unescape($querytmp);
+	    my $custom=unescape($customtmp);
 
             #send query id which is pid_unixdatetime_runningcounter
 	    $queryid = $thisserver;
@@ -212,6 +226,11 @@ sub make_new_child {
 		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
+	    &logthis("am going to do custom query for $custom");
+
+	    # reply with result
             &reply("queryreply:$queryid:$result",$conserver);
 
         }