X-Git-Url: http://dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2Fwatchdbg;h=6058ed64566481494a6321a8dab1065734071dc6;hb=b130a82bd2ea2a977e347c64c26c605931d0b9d2;hp=6da3a586a712040d19cff2590ab3c5e85b372009;hpb=d11ddefb5de3e16b44f78fd9db541bccc9587082;p=spider.git

diff --git a/perl/watchdbg b/perl/watchdbg
index 6da3a586..6058ed64 100755
--- a/perl/watchdbg
+++ b/perl/watchdbg
@@ -31,7 +31,9 @@ use strict;
 my $fp = DXLog::new('debug', 'dat', 'd');
 my @today = Julian::unixtoj(time()); 
 my $fh = $fp->open(@today) or die $!; 
+my $nolines = shift if $ARGV[0] =~ /^\d+$/ || 1;
 my $exp = join '|', @ARGV;
+my @prev;
 
 # seek to end of file
 $fh->seek(0, 2);
@@ -39,19 +41,29 @@ for (;;) {
 	my $line = <$fh>;
 	if ($line) {
 		if ($exp) {
-			printit($line) if $line =~ m{(?:$exp)}oi;
+			push @prev, $line;
+			shift @prev while @prev > $nolines; 
+			if ($line =~ m{(?:$exp)}oi) {
+				printit(@prev);	
+				@prev = ();
+			}
 		} else {
-	            printit($line);
-        	}
+			printit($line);
+		}
 	} else {
 		sleep(1);
-
+		
 		# check that the debug hasn't rolled over to next day
 		# open it if it has
 		my @now = Julian::unixtoj(time()); 
 		if ($today[1] != $now[1]) {
 			$fp->close;
-			$fh = $fp->open(@now) or die $!; 
+			my $i;
+			for ($i = 0; $i < 20; $i++) {
+				last if $fh = $fp->open(@now);
+				sleep 5;
+			}
+		 	die $! if $i >= 20; 
 			@today = @now;
 		}
 	}
@@ -59,12 +71,14 @@ for (;;) {
 
 sub printit
 {
-	my $line = shift;
-	my @line =  split '\^', $line;
-	my $t = shift @line;
-        my ($sec,$min,$hour) = gmtime((defined $t) ? $t : time);
-        my $buf = sprintf "%02d:%02d:%02d", $hour, $min, $sec;
-
-	print $buf, ' ', join('^', @line); 
+	while (@_) {
+		my $line = shift;
+		my @line =  split '\^', $line;
+		my $t = shift @line;
+		my ($sec,$min,$hour) = gmtime((defined $t) ? $t : time);
+		my $buf = sprintf "%02d:%02d:%02d", $hour, $min, $sec;
+		
+		print $buf, ' ', join('^', @line); 
+	}
 }
 exit(0);