mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-13 18:27:35 +00:00
e91e062ab0
NSPR_LOG_MODULES is deprecated. MozReview-Commit-ID: 5mugF8txPPR --HG-- extra : rebase_source : e77e805799b79e9f3cd6a1eaaa58d64592d81f33
240 lines
9.1 KiB
Perl
Executable File
240 lines
9.1 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
|
# vim:sw=4:ts=4:et:
|
|
# This Source Code Form is subject to the terms of the Mozilla Public
|
|
# License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
# $Id: leak-gauge.pl,v 1.8 2008/02/08 19:55:03 dbaron%dbaron.org Exp $
|
|
# This script is designed to help testers isolate and simplify testcases
|
|
# for many classes of leaks (those that involve large graphs of core
|
|
# data structures) in Mozilla-based browsers. It is designed to print
|
|
# information about what has leaked by processing a log taken while
|
|
# running the browser. Such a log can be taken over a long session of
|
|
# normal browsing and then the log can be processed to find sites that
|
|
# leak. Once a site is known to leak, the logging can then be repeated
|
|
# to figure out under what conditions the leak occurs.
|
|
#
|
|
# The way to create this log is to set the environment variables:
|
|
# MOZ_LOG=DOMLeak:5,DocumentLeak:5,nsDocShellLeak:5,NodeInfoManagerLeak:5
|
|
# MOZ_LOG_FILE=nspr.log (or any other filename of your choice)
|
|
# in your shell and then run the program.
|
|
# * In a Windows command prompt, set environment variables with
|
|
# set VAR=value
|
|
# * In an sh-based shell such as bash, set environment variables with
|
|
# export VAR=value
|
|
# * In a csh-based shell such as tcsh, set environment variables with
|
|
# setenv VAR value
|
|
#
|
|
# Then, after you have exited the browser, run this perl script over the
|
|
# log. Either of the following commands should work:
|
|
# perl ./path/to/leak-gauge.pl nspr.log
|
|
# cat nspr.log | perl ./path/to/leak-gauge.pl
|
|
# and it will tell you which of certain core objects leaked and the URLs
|
|
# associated with those objects.
|
|
|
|
|
|
# Nobody said I'm not allowed to write my own object system in perl. No
|
|
# classes here. Just objects and methods.
|
|
sub call {
|
|
my $func = shift;
|
|
my $obj = shift;
|
|
my $funcref = ${$obj}{$func};
|
|
&$funcref($obj, @_);
|
|
}
|
|
|
|
# A hash of objects (keyed by the first word of the line in the log)
|
|
# that have two public methods, handle_line and dump (to be called using
|
|
# call, above), along with any private data they need.
|
|
my $handlers = {
|
|
"DOMWINDOW" => {
|
|
count => 0,
|
|
windows => {},
|
|
handle_line => sub($$) {
|
|
my ($self, $line) = @_;
|
|
my $windows = ${$self}{windows};
|
|
if ($line =~ /^([0-9a-f]*) (\S*)/) {
|
|
my ($addr, $verb, $rest) = ($1, $2, $');
|
|
if ($verb eq "created") {
|
|
$rest =~ / outer=([0-9a-f]*)$/ || die "outer expected";
|
|
my $outer = $1;
|
|
${$windows}{$addr} = { outer => $1 };
|
|
++${$self}{count};
|
|
} elsif ($verb eq "destroyed") {
|
|
delete ${$windows}{$addr};
|
|
} elsif ($verb eq "SetNewDocument") {
|
|
$rest =~ /^ (.*)$/ || die "URI expected";
|
|
my $uri = ($1);
|
|
${${$windows}{$addr}}{$uri} = 1;
|
|
}
|
|
}
|
|
},
|
|
dump => sub ($) {
|
|
my ($self) = @_;
|
|
my $windows = ${$self}{windows};
|
|
foreach my $addr (keys(%{$windows})) {
|
|
my $winobj = ${$windows}{$addr};
|
|
my $outer = delete ${$winobj}{outer};
|
|
print "Leaked " . ($outer eq "0" ? "outer" : "inner") .
|
|
" window $addr " .
|
|
($outer eq "0" ? "" : "(outer $outer) ") .
|
|
"at address $addr.\n";
|
|
foreach my $uri (keys(%{$winobj})) {
|
|
print " ... with URI \"$uri\".\n";
|
|
}
|
|
}
|
|
},
|
|
summary => sub($) {
|
|
my ($self) = @_;
|
|
my $windows = ${$self}{windows};
|
|
print 'Leaked ' . keys(%{$windows}) . ' out of ' .
|
|
${$self}{count} . " DOM Windows\n";
|
|
}
|
|
},
|
|
"DOCUMENT" => {
|
|
count => 0,
|
|
docs => {},
|
|
handle_line => sub($$) {
|
|
my ($self, $line) = @_;
|
|
# This doesn't work; I don't have time to figure out why not.
|
|
# my $docs = ${$self}{docs};
|
|
my $docs = ${$handlers}{"DOCUMENT"}{docs};
|
|
if ($line =~ /^([0-9a-f]*) (\S*)/) {
|
|
my ($addr, $verb, $rest) = ($1, $2, $');
|
|
if ($verb eq "created") {
|
|
${$docs}{$addr} = {};
|
|
++${$self}{count};
|
|
} elsif ($verb eq "destroyed") {
|
|
delete ${$docs}{$addr};
|
|
} elsif ($verb eq "ResetToURI" ||
|
|
$verb eq "StartDocumentLoad") {
|
|
$rest =~ /^ (.*)$/ || die "URI expected";
|
|
my $uri = $1;
|
|
my $doc_info = ${$docs}{$addr};
|
|
${$doc_info}{$uri} = 1;
|
|
if (exists(${$doc_info}{"nim"})) {
|
|
${$doc_info}{"nim"}{$uri} = 1;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
dump => sub ($) {
|
|
my ($self) = @_;
|
|
my $docs = ${$self}{docs};
|
|
foreach my $addr (keys(%{$docs})) {
|
|
print "Leaked document at address $addr.\n";
|
|
foreach my $uri (keys(%{${$docs}{$addr}})) {
|
|
print " ... with URI \"$uri\".\n" unless $uri eq "nim";
|
|
}
|
|
}
|
|
},
|
|
summary => sub($) {
|
|
my ($self) = @_;
|
|
my $docs = ${$self}{docs};
|
|
print 'Leaked ' . keys(%{$docs}) . ' out of ' .
|
|
${$self}{count} . " documents\n";
|
|
}
|
|
},
|
|
"DOCSHELL" => {
|
|
count => 0,
|
|
shells => {},
|
|
handle_line => sub($$) {
|
|
my ($self, $line) = @_;
|
|
my $shells = ${$self}{shells};
|
|
if ($line =~ /^([0-9a-f]*) (\S*)/) {
|
|
my ($addr, $verb, $rest) = ($1, $2, $');
|
|
if ($verb eq "created") {
|
|
${$shells}{$addr} = {};
|
|
++${$self}{count};
|
|
} elsif ($verb eq "destroyed") {
|
|
delete ${$shells}{$addr};
|
|
} elsif ($verb eq "InternalLoad" ||
|
|
$verb eq "SetCurrentURI") {
|
|
$rest =~ /^ (.*)$/ || die "URI expected";
|
|
my $uri = $1;
|
|
${${$shells}{$addr}}{$uri} = 1;
|
|
}
|
|
}
|
|
},
|
|
dump => sub ($) {
|
|
my ($self) = @_;
|
|
my $shells = ${$self}{shells};
|
|
foreach my $addr (keys(%{$shells})) {
|
|
print "Leaked docshell at address $addr.\n";
|
|
foreach my $uri (keys(%{${$shells}{$addr}})) {
|
|
print " ... which loaded URI \"$uri\".\n";
|
|
}
|
|
}
|
|
},
|
|
summary => sub($) {
|
|
my ($self) = @_;
|
|
my $shells = ${$self}{shells};
|
|
print 'Leaked ' . keys(%{$shells}) . ' out of ' .
|
|
${$self}{count} . " docshells\n";
|
|
}
|
|
},
|
|
"NODEINFOMANAGER" => {
|
|
count => 0,
|
|
nims => {},
|
|
handle_line => sub($$) {
|
|
my ($self, $line) = @_;
|
|
my $nims = ${$self}{nims};
|
|
if ($line =~ /^([0-9a-f]*) (\S*)/) {
|
|
my ($addr, $verb, $rest) = ($1, $2, $');
|
|
if ($verb eq "created") {
|
|
${$nims}{$addr} = {};
|
|
++${$self}{count};
|
|
} elsif ($verb eq "destroyed") {
|
|
delete ${$nims}{$addr};
|
|
} elsif ($verb eq "Init") {
|
|
$rest =~ /^ document=(.*)$/ ||
|
|
die "document pointer expected";
|
|
my $doc = $1;
|
|
if ($doc ne "0") {
|
|
my $nim_info = ${$nims}{$addr};
|
|
my $doc_info = ${$handlers}{"DOCUMENT"}{docs}{$doc};
|
|
foreach my $uri (keys(%{$doc_info})) {
|
|
${$nim_info}{$uri} = 1;
|
|
}
|
|
${$doc_info}{"nim"} = $nim_info;
|
|
}
|
|
}
|
|
}
|
|
},
|
|
dump => sub ($) {
|
|
my ($self) = @_;
|
|
my $nims = ${$self}{nims};
|
|
foreach my $addr (keys(%{$nims})) {
|
|
print "Leaked content nodes associated with node info manager at address $addr.\n";
|
|
foreach my $uri (keys(%{${$nims}{$addr}})) {
|
|
print " ... with document URI \"$uri\".\n";
|
|
}
|
|
}
|
|
},
|
|
summary => sub($) {
|
|
my ($self) = @_;
|
|
my $nims = ${$self}{nims};
|
|
print 'Leaked content nodes within ' . keys(%{$nims}) . ' out of ' .
|
|
${$self}{count} . " documents\n";
|
|
}
|
|
}
|
|
};
|
|
|
|
while (<>) {
|
|
# strip off initial "-", thread id, and thread pointer; separate
|
|
# first word and rest
|
|
if (/^\-?[0-9]*\[[0-9a-f]*\]: (\S*) ([^\n\r]*)[\n\r]*$/) {
|
|
my ($handler, $data) = ($1, $2);
|
|
if (defined(${$handlers}{$handler})) {
|
|
call("handle_line", ${$handlers}{$handler}, $data);
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach my $key (keys(%{$handlers})) {
|
|
call("dump", ${$handlers}{$key});
|
|
}
|
|
print "Summary:\n";
|
|
foreach my $key (keys(%{$handlers})) {
|
|
call("summary", ${$handlers}{$key});
|
|
}
|