+ local $^W=0;
+ eval qq( sub confess {
+ \$SIG{__DIE__} = 'DEFAULT';
+ DXDebug::dbgprintring() if DXDebug::isdbg('nologchan');
+ DXDebug::dbg(\$@);
+ DXDebug::dbg(Carp::shortmess(\@_));
+ exit(-1);
+ }
+ sub croak {
+ \$SIG{__DIE__} = 'DEFAULT';
+ DXDebug::dbgprintring() if DXDebug::isdbg('nologchan');
+ DXDebug::dbg(\$@);
+ DXDebug::dbg(Carp::longmess(\@_));
+ exit(-1);
+ }
+ sub carp {
+ DXDebug::dbgprintring(25) if DXDebug('nologchan');
+ DXDebug::dbg(Carp::shortmess(\@_));
+ }
+ sub cluck {
+ DXDebug::dbgprintring(25) if DXDebug('nologchan');
+ DXDebug::dbg(Carp::longmess(\@_));
+ } );
+
+ CORE::die(Carp::shortmess($@)) if $@;
+} else {
+ eval qq( sub confess { die Carp::longmess(\@_); };
+ sub croak { die Carp::shortmess(\@_); };
+ sub cluck { warn Carp::longmess(\@_); };
+ sub carp { warn Carp::shortmess(\@_); };
+ );
+}
+
+
+my $_isdbg; # current dbg level we are processing
+
+sub dbg($)
+{
+# return unless $fp;
+ my $t = time;
+ for (@_) {
+ my $r = $_;
+ chomp $r;
+ my @l = split /\n/, $r;
+ for (@l) {
+ s/([\x00-\x08\x0B-\x1f\x7f-\xff])/uc sprintf("%%%02x",ord($1))/eg;
+ print "$_\n" if defined \*STDOUT && !$no_stdout;
+ my $tag = $_isdbg ? "($_isdbg) " : '';
+ my $str = "$t^$tag$_";
+ &$callback($str) if $callback;
+ if ($dbgringlth) {
+ shift @dbgring while (@dbgring > $dbgringlth);
+ push @dbgring, $str;
+ }
+ $fp->writeunix($t, $str) unless !$fp || $dbglevel{"nolog$_isdbg"} ;
+ }
+ }
+ $_isdbg = '';
+}
+
+sub dbginit
+{
+ $callback = shift;
+
+ # add sig{__DIE__} handling
+ unless (defined $DB::VERSION) {
+ $SIG{__WARN__} = sub {
+ if ($_[0] =~ /Deep\s+recursion/i) {
+ dbg($@);
+ dbg(Carp::longmess(@_));
+ CORE::die;
+ }
+ else {
+ dbg($@);
+ dbg(Carp::shortmess(@_));
+ }
+ };
+
+ $SIG{__DIE__} = sub { dbg($@); dbg(Carp::longmess(@_)); };
+
+ # switch off STDOUT printing if we are not talking to a TTY
+ unless ($^O =~ /^MS/ || $^O =~ /^OS-2/) {
+ unless (isatty(STDOUT->fileno)) {
+ ++$no_stdout;
+ }