From: djk <djk>
Date: Thu, 11 May 2000 16:00:30 +0000 (+0000)
Subject: made the communications between clients and server completely ascii (no
X-Git-Tag: R_1_40~15
X-Git-Url: http://dxcluster.net/gitweb/gitweb.cgi?a=commitdiff_plain;h=f4bc6091a243be2891148902d41e921e171e1a44;p=spider.git

made the communications between clients and server completely ascii (no
length word at the fron anymore).
added watchdbg (a cross between tail -f and grep)
---

diff --git a/Changes b/Changes
index acc45f67..979873b7 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,8 @@
+11May00=======================================================================
+1. fixed looping in Msg.pm (at last)
+10May00=======================================================================
+1. wrote a cross between 'tail -f' and grepdbg so that you can watch the
+debug files for particular strings and only have them print out. 
 05May00=======================================================================
 1. rewrote parts of Msg.pm and client.c so that the messages no longer use
 a length word at the front of each one. They are simply strings of characters
diff --git a/perl/Msg.pm b/perl/Msg.pm
index d067f27e..b626e27c 100644
--- a/perl/Msg.pm
+++ b/perl/Msg.pm
@@ -128,6 +128,7 @@ sub _send {
                 } else {    # Uh, oh
 					delete $conn->{send_offset};
                     $conn->handle_send_err($!);
+					$conn->disconnect;
                     return 0; # fail. Message remains in queue ..
                 }
             }
@@ -231,9 +232,10 @@ sub _rcv {                     # Complement to _send
     }
 
 FINISH:
-    if (defined $bytes_read == 0) {
-		$conn->disconnect();
+    if (defined $bytes_read && $bytes_read == 0) {
+#		$conn->disconnect();
 		&{$conn->{rcvd_notification_proc}}($conn, undef, $!);
+		@lines = ();
     } 
 
 	while (@lines){
diff --git a/perl/cluster.pl b/perl/cluster.pl
index 3ea1d6a5..54295e4b 100755
--- a/perl/cluster.pl
+++ b/perl/cluster.pl
@@ -103,9 +103,11 @@ sub rec
 	my ($conn, $msg, $err) = @_;
 	my $dxchan = DXChannel->get_by_cnum($conn); # get the dxconnnect object for this message
 	
-	if (defined $err && $err) {
+	if (!defined $msg || (defined $err && $err)) {
 		if ($dxchan) {
 			$dxchan->disconnect;
+		} elsif ($conn) {
+			$conn->disconnect;
 		}
 		return;
 	}
@@ -369,11 +371,17 @@ dbg('local', "Local::init error $@") if $@;
 # this, such as it is, is the main loop!
 print "orft we jolly well go ...\n";
 dbg('chan', "DXSpider version $version started...");
+
+open(DB::OUT, "|tee /tmp/aa");
+
 for (;;) {
 	my $timenow;
+	$DB::trace = 1;
+	
 	Msg->event_loop(1, 0.1);
 	$timenow = time;
 	process_inqueue();			# read in lines from the input queue and despatch them
+	$DB::trace = 0;
 	
 	# do timed stuff, ongoing processing happens one a second
 	if ($timenow != $systime) {
diff --git a/perl/watchdbg b/perl/watchdbg
new file mode 100755
index 00000000..745d6983
--- /dev/null
+++ b/perl/watchdbg
@@ -0,0 +1,66 @@
+#!/usr/bin/perl
+#
+# watch the end of the current debug file (like tail -f) applying
+# any regexes supplied on the command line.
+#
+# examples:-
+# 
+#   watchdbg g1tlh       # watch everything g1tlh does
+#   watchdbg gb7baa gb7djk   # watch the conversation between BAA and DJK 
+#
+
+require 5.004;
+
+# search local then perl directories
+BEGIN {
+	# root of directory tree for this system
+	$root = "/spider"; 
+	$root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
+	
+	unshift @INC, "$root/perl";	# this IS the right way round!
+	unshift @INC, "$root/local";
+}
+
+use IO::File;
+use DXVars;
+use DXUtil;
+use DXLog;
+
+use strict;
+
+my $fp = DXLog::new('debug', 'dat', 'd');
+my @today = Julian::unixtoj(time()); 
+my $fh = $fp->open(@today) or die $!; 
+my $exp = join '|', @ARGV;
+
+# seek to end of file
+$fh->seek(0, 2);
+for (;;) {
+	my $line = <$fh>;
+	if ($line) {
+		if ($exp) {
+			printit($line) if $line =~ m{(?:$exp)}oi;
+		} else {
+            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 $!; 
+		}
+	}
+}
+
+sub printit
+{
+	my $line = shift;
+	my @line =  split '\^', $line;
+	my $t = shift @line;
+	print atime($t), ' ', join('^', @line); 
+}
+exit(0);
diff --git a/src/client.c b/src/client.c
index 22e06f69..1f899c58 100644
--- a/src/client.c
+++ b/src/client.c
@@ -264,7 +264,7 @@ void send_msg(fcb_t *f, char let, unsigned char *s, int l)
 			} else 
 				*mp->inp++ = *p;
 		}
-	}
+	} 
 	*mp->inp++ = '\n';
 	*mp->inp = 0;
 	cmsg_send(f->outq, mp, 0);
@@ -295,14 +295,14 @@ int fcb_handler(sel_t *sp, int in, int out, int err)
 			case EAGAIN:
 				goto lout;
 			default:
-				if (f->sort == MSG)
-					send_Z = 0;
+/*				if (f->sort == MSG)
+				send_Z = 0; */
 				ending++;
 				return 0;
 			}
 		} else if (r == 0) {
-			if (f->sort == MSG)
-				send_Z = 0;
+/*			if (f->sort == MSG)
+			send_Z = 0; */
 			ending++;
 			return 0;
 		}
@@ -473,8 +473,8 @@ lout:;
 				case EAGAIN:
 					goto lend;
 				default:
-					if (f->sort == MSG)
-						send_Z = 0;
+/*					if (f->sort == MSG)
+					send_Z = 0; */
 					ending++;
 					return;
 				}
@@ -597,6 +597,7 @@ void term_timeout(int i)
 	if (in && in->t_set)
 		tcsetattr(0, TCSANOW, &in->t);
 	if (node) {
+		shutdown(node->cnum, 3);
 		close(node->cnum);
 	}
 	exit(i);
@@ -605,7 +606,7 @@ void term_timeout(int i)
 void terminate(int i)
 {
 	if (node && send_Z && call) {
-		send_msg(node, 'Z', "", 0);
+		send_msg(node, 'Z', "bye", 3);
 	}
 	
 	signal(SIGALRM, term_timeout);
@@ -617,8 +618,10 @@ void terminate(int i)
 	}
 	if (in && in->t_set)
 		tcsetattr(0, TCSADRAIN, &in->t);
-	if (node) 
+	if (node) {
+		shutdown(node->cnum, 3);
 		close(node->cnum);
+	}
 	exit(i);
 }