=item * ReadLine
-If false, a dummy ReadLine is used, so you can debug
+if false, a dummy ReadLine is used, so you can debug
ReadLine applications.
=item * NonStop
host:port to connect to on remote host for remote debugging.
+=item * HistFile
+
+file to store session history to. There is no default and so no
+history file is written unless this variable is explicitly set.
+
+=item * HistSize
+
+number of commands to store to the file specified in C<HistFile>.
+Default is 100.
+
=back
=head3 SAMPLE RCFILE
BEGIN {eval 'use IO::Handle'}; # Needed for flush only? breaks under miniperl
# Debugger for Perl 5.00x; perl5db.pl patch level:
-$VERSION = 1.29;
+$VERSION = 1.30;
$header = "perl5db.pl version $VERSION";
# + Added threads support (inc. e and E commands)
# Changes: 1.29: Nov 28, 2006 Bo Lindbergh <blgl@hagernas.com>
# + Added macosx_get_fork_TTY support
+# Changes: 1.30: Mar 06, 2007 Andreas Koenig <andk@cpan.org>
+# + Added HistFile, HistSize
########################################################################
=head1 DEBUGGER INITIALIZATION
=cut
@options = qw(
- CommandSet
+ CommandSet HistFile HistSize
hashDepth arrayDepth dumpDepth
DumpDBFiles DumpPackages DumpReused
compactDump veryCompact quote
RemotePort => \$remoteport,
windowSize => \$window,
WarnAssertions => \$warnassertions,
+ HistFile => \$histfile,
+ HistSize => \$histsize,
);
=pod
=pod
The pager to be used is needed next. We try to get it from the
-environment first. if it's not defined there, we try to find it in
+environment first. If it's not defined there, we try to find it in
the Perl C<Config.pm>. If it's not there, we default to C<more>. We
then call the C<pager()> function to save the pager name.
lock($DBGR);
my $tid;
if ($ENV{PERL5DB_THREADED}) {
- $tid = eval { "[".threads->self->tid."]" };
+ $tid = eval { "[".threads->tid."]" };
}
# Check for whether we should be running continuously or not.
@vars = split( ' ', $2 );
# If main::dumpvar isn't here, get it.
- do 'dumpvar.pl' unless defined &main::dumpvar;
+ do 'dumpvar.pl' || die $@ unless defined &main::dumpvar;
if ( defined &main::dumpvar ) {
# We got it. Turn off subroutine entry/exit messages
and next CMD;
# Load up dumpvar if we don't have it. If we can, that is.
- do 'dumpvar.pl' unless defined &main::dumpvar;
+ do 'dumpvar.pl' || die $@ unless defined &main::dumpvar;
defined &main::dumpvar
or print $OUT "dumpvar.pl not available.\n"
and next CMD;
print "threads not loaded($ENV{PERL5DB_THREADED})
please run the debugger with PERL5DB_THREADED=1 set in the environment\n";
} else {
- my $tid = threads->self->tid;
+ my $tid = threads->tid;
print "thread id: $tid\n";
}
} ## end sub cmd_e
print "threads not loaded($ENV{PERL5DB_THREADED})
please run the debugger with PERL5DB_THREADED=1 set in the environment\n";
} else {
- my $tid = threads->self->tid;
+ my $tid = threads->tid;
print "thread ids: ".join(', ',
map { ($tid == $_->tid ? '<'.$_->tid.'>' : $_->tid) } threads->list
)."\n";
# Load dumpvar.pl unless we've already got the sub we need from it.
unless ( defined &main::dumpValue ) {
- do 'dumpvar.pl';
+ do 'dumpvar.pl' or die $@;
}
# If the load succeeded (or we already had dumpvalue()), go ahead
$term->MinLine(2);
+ &load_hist();
+
if ( $term->Features->{setHistory} and "@hist" ne "?" ) {
$term->SetHistory(@hist);
}
$term_pid = $$;
} ## end sub setterm
+sub load_hist {
+ $histfile //= option_val("HistFile", undef);
+ return unless defined $histfile;
+ open my $fh, "<", $histfile or return;
+ local $/ = "\n";
+ @hist = ();
+ while (<$fh>) {
+ chomp;
+ push @hist, $_;
+ }
+ close $fh;
+}
+
+sub save_hist {
+ return unless defined $histfile;
+ eval { require File::Path } or return;
+ eval { require File::Basename } or return;
+ File::Path::mkpath(File::Basename::dirname($histfile));
+ open my $fh, ">", $histfile or die "Could not open '$histfile': $!";
+ $histsize //= option_val("HistSize",100);
+ my @copy = grep { $_ ne '?' } @hist;
+ my $start = scalar(@copy) > $histsize ? scalar(@copy)-$histsize : 0;
+ for ($start .. $#copy) {
+ print $fh "$copy[$_]\n";
+ }
+ close $fh or die "Could not write '$histfile': $!";
+}
+
=head1 GET_FORK_TTY EXAMPLE FUNCTIONS
When the process being debugged forks, or the process invokes a command
B<o> [I<opt>] ... Set boolean option to true
B<o> [I<opt>B<?>] Query options
B<o> [I<opt>B<=>I<val>] [I<opt>=B<\">I<val>B<\">] ...
- Set options. Use quotes in spaces in value.
+ Set options. Use quotes if spaces in value.
I<recallCommand>, I<ShellBang> chars used to recall command or spawn shell;
I<pager> program for output of \"|cmd\";
I<tkRunning> run Tk while prompting (with ReadLine);
B<O> [I<opt>] ... Set boolean option to true
B<O> [I<opt>B<?>] Query options
B<O> [I<opt>B<=>I<val>] [I<opt>=B<\">I<val>B<\">] ...
- Set options. Use quotes in spaces in value.
+ Set options. Use quotes if spaces in value.
I<recallCommand>, I<ShellBang> chars used to recall command or spawn shell;
I<pager> program for output of \"|cmd\";
I<tkRunning> run Tk while prompting (with ReadLine);
$fall_off_end = 1 unless $inhibit_exit;
# Do not stop in at_exit() and destructors on exit:
- $DB::single = !$fall_off_end && !$runnonstop;
- DB::fake::at_exit() unless $fall_off_end or $runnonstop;
+ if ($fall_off_end or $runnonstop) {
+ &save_hist();
+ } else {
+ $DB::single = 1;
+ DB::fake::at_exit();
+ }
} ## end END
=head1 PRE-5.8 COMMANDS
projects / p5sagit/p5-mst-13.2.git / blobdiff