X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FUSDB.pm;h=ed519b4b86aa5e2cc03d6222ffcb824586774fbe;hb=d0e554d25adfe94a2d5a1c3f57b48bfab1a9f4a2;hp=3b62fa5d59c5d995b5371a1e4c4a4e9460533b95;hpb=3299a5ecf4b1bc16039b5300ce78480bc0e9a999;p=spider.git

diff --git a/perl/USDB.pm b/perl/USDB.pm
index 3b62fa5d..ed519b4b 100644
--- a/perl/USDB.pm
+++ b/perl/USDB.pm
@@ -5,6 +5,8 @@
 #
 # 
 
+package USDB;
+
 use strict;
 
 use DXVars;
@@ -19,9 +21,9 @@ $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0))
 $main::build += $VERSION;
 $main::branch += $BRANCH;
 
-use vars qw(%db $present);
+use vars qw(%db $present $dbfn);
 
-my $dbfn = "$main::data/usdb.v1";
+$dbfn = "$main::data/usdb.v1";
 
 sub init
 {
@@ -64,17 +66,28 @@ sub getcity
 #
 # Note that this removes and overwrites the existing DB file
 # You will need to init again after doing this
-#
+# 
 
 sub load
 {
+	return "Need a filename" unless @_;
+	
 	# create the new output file
 	my $a = new DB_File::BTREEINFO;
 	$a->{psize} = 4096 * 2;
-	my $s;
-	if ($s = -s $dbfn && $s > 1024 * 1024) {
-		$a->{cachesize} = int(($s / (1024*1024)) / 2) * 1024 * 1024;
+	my $s = 0;
+
+	# guess a cache size
+	for (@_) {
+		my $ts = -s;
+		$s = $ts if $ts > $s;
+	}
+	if ($s > 1024 * 1024) {
+		$a->{cachesize} = int($s / (1024*1024)) * 3 * 1024 * 1024;
 	}
+
+#	print "cache size " . $a->{cachesize} . "\n";
+	
 	my %dbn;
 	if (-e $dbfn ) {
 		syscopy($dbfn, "$dbfn.new") or return "cannot copy $dbfn -> $dbfn.new $!";
@@ -86,9 +99,10 @@ sub load
 	for (@_) {
 		my $fn = shift;
 		my $f = gzopen($fn, "r") or return "Cannot open $fn $!";
-		while ($f->gzreadline) {
-			chomp;
-			my ($call, $city, $state) = split /\|/;
+		my $l;
+		while ($f->gzreadline($l)) {
+			chomp $l;
+			my ($call, $city, $state) = split /\|/, $l;
 			
 			# lookup the city 
 			my $s = "$city|$state";