1 files changed, 87 insertions, 0 deletions
diff --git a/src/windows/build/Logger.pm b/src/windows/build/Logger.pm
new file mode 100644
index 0000000000000..c7f904a946ea4
--- /dev/null
+++ b/src/windows/build/Logger.pm
@@ -0,0 +1,87 @@
+package Logger;
+
+use strict;
+use IO::File;
+use FindBin;
+
+my $bStarted = 0;
+
+sub new {
+    my $class = shift;
+    my $file = shift;
+    my $append = shift;
+    $file || die "Usage: \$foo = new Logger filename [append]\n";
+    my $self = {};
+    bless  $self, $class;
+    $self->{FILE} = $file;
+    $self->{APPEND} = $append?'-a':'';
+    return $self;
+}
+
+sub start {
+    my $self = shift;
+
+    return 1 if $self->{PIPE};
+
+    STDOUT->flush;
+    STDERR->flush;
+
+    my $fh_out = new IO::File;
+    my $fh_err = new IO::File;
+    my $fh_pipe = new IO::File;
+
+    $self->{OUT} = $fh_out;
+    $self->{ERR} = $fh_err;
+    $self->{PIPE} = $fh_pipe;
+
+    $fh_out->open(">&STDOUT") || die;
+    $fh_err->open(">&STDERR") || die;
+    $fh_pipe->open("|$^X $FindBin::Bin/tee.pl $self->{APPEND} $self->{FILE}") || die;
+
+    STDOUT->fdopen(fileno $fh_pipe, "w") || die;
+    STDERR->fdopen(fileno $fh_pipe, "w") || die;
+
+    STDOUT->autoflush(1);
+    STDERR->autoflush(1);
+
+    $SIG{__DIE__} = sub {
+	print STDERR $_[0];
+	$self->stop;
+	die "\n";
+    };
+
+	$bStarted = 1;
+    return 1;
+}
+
+# 20070314 kpkoch:	
+#  There appears to be a bug in ActivePerl where Logger's games with streams
+#  and the SIG DIE handler cause eval to throw exceptions.  By deleting the DIE handler,
+#  subsequent evals do not fail.
+sub no_die_handler {
+	delete $SIG{__DIE__};
+	}
+
+sub stop {
+    my $self = shift;
+
+    return 0 if !$self->{PIPE};
+
+    STDOUT->close;
+    STDERR->close;
+    $self->{PIPE}->close;
+    STDOUT->fdopen(fileno $self->{OUT}, "w");
+    STDERR->fdopen(fileno $self->{ERR}, "w");
+    delete $self->{OUT};
+    delete $self->{ERR};
+    delete $self->{PIPE};
+	$bStarted = 0;
+    return 1;
+}
+
+sub DESTROY {
+    my $self = shift;
+	$self->stop	if ($bStarted);
+	}
+
+1;