зеркало из https://github.com/mozilla/pjs.git
63 строки
1.6 KiB
Perl
Executable File
63 строки
1.6 KiB
Perl
Executable File
#!/usr/bin/perl -w
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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use strict;
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my %allocs;
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my %classes;
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my %counter;
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LINE: while (<>) {
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next LINE if (! /^</);
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my @fields = split(/ /, $_);
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my $class = shift(@fields);
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my $obj = shift(@fields);
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my $sno = shift(@fields);
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my $op = shift(@fields);
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my $cnt = shift(@fields);
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# for AddRef/Release $cnt is the refcount, for Ctor/Dtor it's the size
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if ($op eq 'AddRef' && $cnt == 1) {
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# Example: <nsStringBuffer> 0x01AFD3B8 1 AddRef 1
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$allocs{$obj} = ++$counter{$class}; # the order of allocation
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$classes{$obj} = $class;
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}
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elsif ($op eq 'Release' && $cnt == 0) {
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# Example: <nsStringBuffer> 0x01AFD3B8 1 Release 0
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delete($allocs{$obj});
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delete($classes{$obj});
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}
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elsif ($op eq 'Ctor') {
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# Example: <PStreamNotifyParent> 0x08880BD0 8 Ctor (20)
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$allocs{$obj} = ++$counter{$class};
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$classes{$obj} = $class;
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}
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elsif ($op eq 'Dtor') {
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# Example: <PStreamNotifyParent> 0x08880BD0 8 Dtor (20)
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delete($allocs{$obj});
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delete($classes{$obj});
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}
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}
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sub sort_by_value {
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my %x = @_;
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sub _by_value($) { my %x = @_; $x{$a} cmp $x{$b}; }
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sort _by_value keys(%x);
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}
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foreach my $key (&sort_by_value(%allocs)) {
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# Example: 0x03F1D818 (2078) @ <nsStringBuffer>
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print "$key (", $allocs{$key}, ") @ ", $classes{$key}, "\n";
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}
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