X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=remoteglot.pl;h=e3433aa12414037ff86ba81c5d92e0449514d253;hp=b128e29735b99e7a520d1d31ecec61db0d7cfe40;hb=944e74aaa3c5b3038d16d8be1461be6f6f33a4b4;hpb=96875773d3cd75a57b13cba9d1497c616cf76503

diff --git a/remoteglot.pl b/remoteglot.pl
index b128e29..e3433aa 100755
--- a/remoteglot.pl
+++ b/remoteglot.pl
@@ -28,9 +28,10 @@ use warnings;
 no warnings qw(once);
 
 # Program starts here
-$SIG{ALRM} = sub { output(); };
 my $latest_update = undef;
+my $output_timer = undef;
 my $http_timer = undef;
+my $stop_pgn_fetch = 0;
 my $tb_retry_timer = undef;
 my %tb_cache = ();
 my $tb_lookup_running = 0;
@@ -199,7 +200,6 @@ sub handle_fics {
 		};
 		if ($@) {
 			warn "Error when getting FICS move history: $@";
-			exit;
 			$getting_movelist = 0;
 		}
 	}
@@ -232,6 +232,7 @@ sub handle_fics {
 			fetch_pgn($url);
 		} elsif ($msg =~ /^stoppgn$/) {
 			$t->cmd("tell $who Stopping poll.");
+			$stop_pgn_fetch = 1;
 			$http_timer = undef;
 		} elsif ($msg =~ /^quit$/) {
 			$t->cmd("tell $who Bye bye.");
@@ -257,41 +258,53 @@ my $pgn_hysteresis_counter = 0;
 
 sub handle_pgn {
 	my ($body, $header, $url) = @_;
+
+	if ($stop_pgn_fetch) {
+		$stop_pgn_fetch = 0;
+		$http_timer = undef;
+		return;
+	}
+
 	my $pgn = Chess::PGN::Parse->new(undef, $body);
 	if (!defined($pgn) || !$pgn->read_game()) {
 		warn "Error in parsing PGN from $url\n";
 	} else {
-		$pgn->quick_parse_game;
-		my $pos = Position->start_pos($pgn->white, $pgn->black);
-		my $moves = $pgn->moves;
-		my @uci_moves = ();
-		for my $move (@$moves) {
-			my $uci_move;
-			($pos, $uci_move) = $pos->make_pretty_move($move);
-			push @uci_moves, $uci_move;
-		}
-		$pos->{'history'} = \@uci_moves;
-		$pos->{'pretty_history'} = $moves;
-
-		# Sometimes, PGNs lose a move or two for a short while,
-		# or people push out new ones non-atomically. 
-		# Thus, if we PGN doesn't change names but becomes
-		# shorter, we mistrust it for a few seconds.
-		my $trust_pgn = 1;
-		if (defined($last_pgn_white) && defined($last_pgn_black) &&
-		    $last_pgn_white eq $pgn->white &&
-		    $last_pgn_black eq $pgn->black &&
-		    scalar(@uci_moves) < scalar(@last_pgn_uci_moves)) {
-			if (++$pgn_hysteresis_counter < 3) {
-				$trust_pgn = 0;	
+		eval {
+			$pgn->quick_parse_game;
+			my $pos = Position->start_pos($pgn->white, $pgn->black);
+			my $moves = $pgn->moves;
+			my @uci_moves = ();
+			for my $move (@$moves) {
+				my $uci_move;
+				($pos, $uci_move) = $pos->make_pretty_move($move);
+				push @uci_moves, $uci_move;
 			}
-		}
-		if ($trust_pgn) {
-			$last_pgn_white = $pgn->white;
-			$last_pgn_black = $pgn->black;
-			@last_pgn_uci_moves = @uci_moves;
-			$pgn_hysteresis_counter = 0;
-			handle_position($pos);
+			$pos->{'history'} = \@uci_moves;
+			$pos->{'pretty_history'} = $moves;
+
+			# Sometimes, PGNs lose a move or two for a short while,
+			# or people push out new ones non-atomically. 
+			# Thus, if we PGN doesn't change names but becomes
+			# shorter, we mistrust it for a few seconds.
+			my $trust_pgn = 1;
+			if (defined($last_pgn_white) && defined($last_pgn_black) &&
+			    $last_pgn_white eq $pgn->white &&
+			    $last_pgn_black eq $pgn->black &&
+			    scalar(@uci_moves) < scalar(@last_pgn_uci_moves)) {
+				if (++$pgn_hysteresis_counter < 3) {
+					$trust_pgn = 0;	
+				}
+			}
+			if ($trust_pgn) {
+				$last_pgn_white = $pgn->white;
+				$last_pgn_black = $pgn->black;
+				@last_pgn_uci_moves = @uci_moves;
+				$pgn_hysteresis_counter = 0;
+				handle_position($pos);
+			}
+		};
+		if ($@) {
+			warn "Error in parsing moves from $url\n";
 		}
 	}
 	
@@ -478,7 +491,8 @@ sub output {
 	# Don't update too often.
 	my $age = Time::HiRes::tv_interval($latest_update);
 	if ($age < $remoteglotconf::update_max_interval) {
-		Time::HiRes::alarm($remoteglotconf::update_max_interval + 0.01 - $age);
+		my $wait = $remoteglotconf::update_max_interval + 0.01 - $age;
+		$output_timer = AnyEvent->timer(after => $wait, cb => \&output);
 		return;
 	}
 	
@@ -502,7 +516,7 @@ sub output {
 
 		my $t = $tb_cache{$fen};
 		my $pv = $t->{'pv'};
-		my $matelen = int((1 + scalar @$pv) / 2);
+		my $matelen = int((1 + $t->{'score'}) / 2);
 		if ($t->{'result'} eq '1/2-1/2') {
 			$info->{'score_cp'} = 0;
 		} elsif ($t->{'result'} eq '1-0') {
@@ -728,11 +742,61 @@ sub output_json {
 	}
 	$json->{'refutation_lines'} = \%refutation_lines;
 
-	open my $fh, ">", $remoteglotconf::json_output . ".tmp"
+	my $encoded = JSON::XS::encode_json($json);
+	atomic_set_contents($remoteglotconf::json_output, $encoded);
+
+	if (exists($pos_calculating->{'history'}) &&
+	    defined($remoteglotconf::json_history_dir)) {
+		my $halfmove_num = scalar @{$pos_calculating->{'history'}};
+		(my $fen = $pos_calculating->fen()) =~ tr,/ ,-_,;
+		my $filename = $remoteglotconf::json_history_dir . "/move$halfmove_num-$fen.json";
+
+		# Overwrite old analysis (assuming it exists at all) if we're
+		# using a different engine, or if we've calculated deeper.
+		# nodes is used as a tiebreaker. Don't bother about Multi-PV
+		# data; it's not that important.
+		my ($old_engine, $old_depth, $old_nodes) = get_json_analysis_stats($filename);
+		my $new_depth = $json->{'depth'} // 0;
+		my $new_nodes = $json->{'nodes'} // 0;
+		if (!defined($old_engine) ||
+		    $old_engine ne $json->{'id'}{'name'} ||
+		    $new_depth > $old_depth ||
+		    ($new_depth == $old_depth && $new_nodes >= $old_nodes)) {
+			atomic_set_contents($filename, $encoded);
+		}
+	}
+}
+
+sub atomic_set_contents {
+	my ($filename, $contents) = @_;
+
+	open my $fh, ">", $filename . ".tmp"
 		or return;
-	print $fh JSON::XS::encode_json($json);
+	print $fh $contents;
 	close $fh;
-	rename($remoteglotconf::json_output . ".tmp", $remoteglotconf::json_output);
+	rename($filename . ".tmp", $filename);
+}
+
+sub get_json_analysis_stats {
+	my $filename = shift;
+
+	my ($engine, $depth, $nodes);
+
+	open my $fh, "<", $filename
+		or return undef;
+	local $/ = undef;
+	eval {
+		my $json = JSON::XS::decode_json(<$fh>);
+		$engine = $json->{'id'}{'name'} // die;
+		$depth = $json->{'depth'} // 0;
+		$nodes = $json->{'nodes'} // 0;
+	};
+	close $fh;
+	if ($@) {
+		warn "Error in decoding $filename: $@";
+		return undef;
+	}
+	return ($engine, $depth, $nodes);
 }
 
 sub uciprint {
@@ -937,7 +1001,8 @@ sub handle_tb_lookup_return {
 				}
 				$tb_cache{$fen} = {
 					result => $pgn->result,
-					pv => \@uci_moves
+					pv => \@uci_moves,
+					score => $response->{'Response'}{'Score'},
 				};
 				output();
 			}