Mercurial > pub > Impl
view Lib/IMPL/Profiler/Memory.pm @ 250:129e48bb5afb
DOM refactoring
ObjectToDOM methods are virtual
QueryToDOM uses inflators
Fixed transform for the complex values in the ObjectToDOM
QueryToDOM doesn't allow to use complex values (HASHes) as values for nodes (overpost problem)
author | sergey |
---|---|
date | Wed, 07 Nov 2012 04:17:53 +0400 |
parents | 4d0e1962161c |
children |
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package IMPL::Profiler::Memory; use strict; use Carp qw(longmess shortmess); use Scalar::Util qw(refaddr weaken isweak); my %listeners; my $trapped; BEGIN { $trapped = 0; } sub import { if (not $trapped) { *CORE::GLOBAL::bless = sub { $_[1] |= caller unless $_[1]; my $ref = CORE::bless $_[0],$_[1]; $_->track($ref) foreach values %listeners; return $ref; }; $trapped = 1; } } sub _ConnectListener { my ($self,$listener) = @_; die "Invalid listener" unless ref $listener; $listeners{refaddr($listener)} = $listener; } sub _RemoveListener { my ($self,$listener) = @_; die "Invalid listener" unless ref $listener; delete $listeners{refaddr($listener)}; } sub Monitor { my ($self,$code) = @_; my $data = IMPL::Profiler::Memory::Data->new(); $data->Monitor($code); return $data; } package IMPL::Profiler::Memory::Data; use parent qw(IMPL::Object::Fields); use Data::Dumper(); use Scalar::Util qw(refaddr weaken isweak); use fields qw( objects counter); sub CTOR { my $this = shift; $this->{objects} = []; $this->{counter} = 0; } sub track { my $i = scalar @{$_[0]->{objects}}; $_[0]->{objects}[$i] = $_[1]; weaken($_[0]->{objects}[$i]); $_[0]->{counter} ++; } sub Purge { my $this = shift; return $this->{objects} = [ grep defined($_), @{$this->{objects}}]; } sub Dump { my $this = shift; return Data::Dumper->Dump([$this->{objects}]); } sub isLeak { my ($this) = @_; $this->Purge(); return ( scalar(@{$this->{objects}}) > 0); } sub Monitor { my ($this,$code) = @_; die "A reference to a subroutine is required" unless ref $code; IMPL::Profiler::Memory->_ConnectListener($this); eval { $code->(); }; my $err = $@; IMPL::Profiler::Memory->_RemoveListener($this); die $err if $err; return; } 1;