From 7a74bbb4aa72509078b38eff21f06857648cfd42 Mon Sep 17 00:00:00 2001
From: Dirk Koopman <djk@tobit.co.uk>
Date: Mon, 25 Feb 2008 19:02:25 +0000
Subject: [PATCH] Retry connection to AGW to every 30 seconds on fail

If the connection to AGW goes away or AGW is not loaded when dxspider starts
up, then there was no retry mechanism for restarting the connection. Now
it will try to connect every 30 seconds if AGW is enabled and there is no
connection present.
---
 Changes         |  3 +++
 perl/AGWMsg.pm  | 14 +++++++++++++-
 perl/Version.pm |  2 +-
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/Changes b/Changes
index 48c17ba8..8e15eddd 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,6 @@
+25Feb08=======================================================================
+1. Arrange for AGWMsg to retry connection either if the AGW engine isn't
+loaded on startup or it disappears for some reason and restarts.
 19Feb08=======================================================================
 1. Added CTY-1801 cty.dat data.
 2. Fix problem with entering non-ascii data and then executing commands that
diff --git a/perl/AGWMsg.pm b/perl/AGWMsg.pm
index 77155143..6a364535 100644
--- a/perl/AGWMsg.pm
+++ b/perl/AGWMsg.pm
@@ -30,7 +30,8 @@ use AGWConnect;
 use DXDebug;
 
 use vars qw(@ISA $sock @outqueue $send_offset $inmsg $rproc $noports $lastytime 
-			$lasthtime $ypolltime $hpolltime %circuit $total_in $total_out);
+			$lasthtime $ypolltime $hpolltime %circuit $total_in $total_out
+		    $lastconnect $connectinterval);
 
 @ISA = qw(Msg ExtMsg);
 $sock = undef;
@@ -44,6 +45,8 @@ $ypolltime = 10 unless defined $ypolltime;
 $hpolltime = 300 unless defined $hpolltime;
 %circuit = ();
 $total_in = $total_out = 0;
+$lastconnect = 0;
+$connectinterval = 30;
 
 sub init
 {
@@ -51,8 +54,10 @@ sub init
 	$rproc = shift;
 	
 	finish();
+
 	dbg("AGW initialising and connecting to $addr/$port ...");
 	$sock = IO::Socket::INET->new(PeerAddr => $addr, PeerPort => $port, Proto=>'tcp', Timeout=>15);
+	$lastconnect = $main::systime;
 	unless ($sock) {
 		dbg("Cannot connect to AGW Engine at $addr/$port $!");
 		return;
@@ -95,6 +100,7 @@ sub finish
 		Msg->sleep(2);
 		Msg::set_event_handler($sock, read=>undef, write=>undef, error=>undef);
 		$sock->close;
+		$lastconnect = $main::systime;
 	}
 }
 
@@ -228,6 +234,7 @@ sub _error
 		&{$_->{eproc}}() if $_->{eproc};
 		$_->disconnect;
 	}
+	$lastconnect = $main::systime;
 }
 
 sub _decode
@@ -443,7 +450,12 @@ sub enqueue
 
 sub process
 {
+	# try to reconnect to AGW if we could not previously or there was an error
+	if ($enable && !$sock && ($lastconnect + $connectinterval) >= $main::systime) {
+		init();
+	}
 	return unless $sock;
+
 	if ($ypolltime && $main::systime - $lastytime >= $ypolltime) {
 		for (my $i = 0; $i < $noports; $i++) {
 			_sendf('y', undef, undef, $i );
diff --git a/perl/Version.pm b/perl/Version.pm
index 4c97d886..1c42dfb0 100644
--- a/perl/Version.pm
+++ b/perl/Version.pm
@@ -11,6 +11,6 @@ use vars qw($version $subversion $build);
 
 $version = '1.54';
 $subversion = '0';
-$build = '206';
+$build = '207';
 
 1;
-- 
2.34.1