kivitendo/SL/LXDebug.pm @ fc490063
| d319704a | Moritz Bunkus | package LXDebug;
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| 142f7c2c | Moritz Bunkus | use constant NONE => 0;
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use constant INFO => 1;
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use constant DEBUG1 => 2;
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use constant DEBUG2 => 4;
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use constant QUERY => 8;
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use constant TRACE => 16;
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use constant BACKTRACE_ON_ERROR => 32;
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use constant ALL => 63;
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| d319704a | Moritz Bunkus | |||
| 5d0421a3 | Moritz Bunkus | use constant FILE_TARGET => 0;
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use constant STDERR_TARGET => 1;
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| d319704a | Moritz Bunkus | |||
use POSIX qw(strftime);
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my $data_dumper_available;
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| e7191bc2 | Moritz Bunkus | our $global_level;
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our $watch_form;
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| d319704a | Moritz Bunkus | BEGIN {
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eval("use Data::Dumper");
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$data_dumper_available = $@ ? 0 : 1;
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$global_level = NONE;
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| e7191bc2 | Moritz Bunkus | $watch_form = 0;
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| d319704a | Moritz Bunkus | }
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sub new {
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my $type = shift;
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my $self = {};
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$self->{"calldepth"} = 0;
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$self->{"file"} = "/tmp/lx-office-debug.log";
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$self->{"target"} = FILE_TARGET;
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$self->{"level"} = 0;
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while ($_[0]) {
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$self->{ $_[0] } = $_[1];
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shift;
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shift;
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}
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bless($self, $type);
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}
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sub set_target {
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my ($self, $target, $file) = @_;
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if ((FILE_TARGET == $target) && $file) {
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$self->{"file"} = $file;
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$self->{"target"} = FILE_TARGET;
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} elsif (STDERR_TARGET == $target) {
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$self->{"target"} = STDERR_TARGET;
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}
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}
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sub enter_sub {
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| 8c6efb2a | Moritz Bunkus | my ($self, $level) = @_;
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| bce420e0 | Sven Schöling | $level *= 1;
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| 8c6efb2a | Moritz Bunkus | |||
| bce420e0 | Sven Schöling | return 1 unless ($global_level & TRACE); # ignore if traces aren't active
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return 1 if $level && !($global_level & $level); # ignore if level of trace isn't active
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| d319704a | Moritz Bunkus | |||
my ($package, $filename, $line, $subroutine) = caller(1);
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my ($dummy1, $self_filename, $self_line) = caller(0);
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| bce420e0 | Sven Schöling | my $indent = " " x $self->{"calldepth"}++;
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| d319704a | Moritz Bunkus | |||
if (!defined($package)) {
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| bce420e0 | Sven Schöling | $self->_write('sub' . $level, $indent . "\\ top-level?\n");
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| d319704a | Moritz Bunkus | } else {
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| bce420e0 | Sven Schöling | $self->_write('sub' . $level, $indent
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| 54e4131e | Moritz Bunkus | . "\\ ${subroutine} in "
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| d319704a | Moritz Bunkus | . "${self_filename}:${self_line} called from "
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. "${filename}:${line}\n");
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}
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| 54e4131e | Moritz Bunkus | return 1;
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| d319704a | Moritz Bunkus | }
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sub leave_sub {
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| 8c6efb2a | Moritz Bunkus | my ($self, $level) = @_;
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| bce420e0 | Sven Schöling | $level *= 1;
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| 8c6efb2a | Moritz Bunkus | |||
| bce420e0 | Sven Schöling | return 1 unless ($global_level & TRACE); # ignore if traces aren't active
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return 1 if $level && !($global_level & $level); # ignore if level of trace isn't active
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| d319704a | Moritz Bunkus | |||
my ($package, $filename, $line, $subroutine) = caller(1);
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my ($dummy1, $self_filename, $self_line) = caller(0);
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| bce420e0 | Sven Schöling | my $indent = " " x --$self->{"calldepth"};
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| d319704a | Moritz Bunkus | |||
if (!defined($package)) {
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| bce420e0 | Sven Schöling | $self->_write('sub' . $level, $indent . "/ top-level?\n");
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| d319704a | Moritz Bunkus | } else {
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| bce420e0 | Sven Schöling | $self->_write('sub' . $level, $indent . "/ ${subroutine} in " . "${self_filename}:${self_line}\n");
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| d319704a | Moritz Bunkus | }
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| 54e4131e | Moritz Bunkus | return 1;
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| d319704a | Moritz Bunkus | }
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| 142f7c2c | Moritz Bunkus | sub show_backtrace {
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| 4b17bfa8 | Moritz Bunkus | my ($self) = @_;
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| 142f7c2c | Moritz Bunkus | return 1 unless ($global_level & BACKTRACE_ON_ERROR);
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| 4b17bfa8 | Moritz Bunkus | |||
| 142f7c2c | Moritz Bunkus | $self->message(BACKTRACE_ON_ERROR, "Starting full caller dump:");
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| 4b17bfa8 | Moritz Bunkus | my $level = 0;
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while (my ($dummy, $filename, $line, $subroutine) = caller $level) {
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| eef466c1 | Moritz Bunkus | $self->message(BACKTRACE_ON_ERROR, " ${subroutine} from ${filename}:${line}");
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| 4b17bfa8 | Moritz Bunkus | $level++;
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}
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return 1;
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}
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| d319704a | Moritz Bunkus | sub message {
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my ($self, $level, $message) = @_;
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| bbb608a0 | Moritz Bunkus | |||
| 6c38a7cf | Sven Schöling | $self->_write(level2string($level), $message) if (($self->{"level"} | $global_level) & $level || !$level);
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| d319704a | Moritz Bunkus | }
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sub dump {
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my ($self, $level, $name, $variable) = @_;
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if ($data_dumper_available) {
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$self->message($level, "dumping ${name}:\n" . Dumper($variable));
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} else {
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$self->message($level,
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"dumping ${name}: Data::Dumper not available; "
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. "variable cannot be dumped");
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}
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}
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sub enable_sub_tracing {
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my ($self) = @_;
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| bce420e0 | Sven Schöling | $self->{level} | TRACE;
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| d319704a | Moritz Bunkus | }
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sub disable_sub_tracing {
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my ($self) = @_;
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| bce420e0 | Sven Schöling | $self->{level} & ~ TRACE;
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| d319704a | Moritz Bunkus | }
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sub _write {
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my ($self, $prefix, $message) = @_;
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my $date = strftime("%Y-%m-%d %H:%M:%S $$ ${prefix}: ", localtime(time()));
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local *FILE;
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chomp($message);
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if ((FILE_TARGET == $self->{"target"})
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&& open(FILE, ">>" . $self->{"file"})) {
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print(FILE "${date}${message}\n");
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close(FILE);
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| 20a08305 | Moritz Bunkus | } elsif (STDERR_TARGET == $self->{"target"}) {
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| d319704a | Moritz Bunkus | print(STDERR "${date}${message}\n");
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}
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}
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| bce420e0 | Sven Schöling | sub level2string {
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# use $_[0] as a bit mask and return levelstrings separated by /
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| 4b17bfa8 | Moritz Bunkus | join '/', qw(info debug1 debug2 query trace error_call_trace)[ grep { (reverse split //, sprintf "%05b", $_[0])[$_] } 0..5 ]
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| bce420e0 | Sven Schöling | }
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| d319704a | Moritz Bunkus | 1;
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