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a4e48368 Sven Schöling
#!/usr/bin/perl

use strict;

use FCGI;
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use IO::File;
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use SL::Dispatcher;
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use SL::FCGIFixes;
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use SL::LXDebug;

sub _parse_number_with_unit {
my ($number) = @_;

return undef unless defined $number;
return $number unless $number =~ m{^ \s* (\d+) \s* ([kmg])b \s* $}xi;

my %factors = (K => 1024, M => 1024 * 1024, G => 1024 * 1024 * 1024);

return $1 * $factors{uc $2};
}

sub _memory_usage_is_too_high {
return undef unless $::lx_office_conf{system};

my %limits = (
rss => _parse_number_with_unit($::lx_office_conf{system}->{memory_limit_rss}),
size => _parse_number_with_unit($::lx_office_conf{system}->{memory_limit_vsz}),
);

# $::lxdebug->dump(0, "limits", \%limits);

return undef unless $limits{rss} || $limits{vsz};

my %usage;

my $in = IO::File->new("/proc/$$/status", "r") or return undef;

while (<$in>) {
chomp;
$usage{lc $1} = _parse_number_with_unit($2) if m{^ vm(rss|size): \s* (\d+ \s* [kmg]b) \s* $}ix;
}

$in->close;

# $::lxdebug->dump(0, "usage", \%usage);

foreach my $type (keys %limits) {
next if !$limits{$type};
next if $limits{$type} >= ($usage{$type} // 0);

$::lxdebug->message(LXDebug::WARN(), "Exiting due to memory size limit reached for type '${type}': limit " . $limits{$type} . " bytes, usage " . $usage{$type} . " bytes");

return 1;
}

return 0;
}
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our $dispatcher = SL::Dispatcher->new('FastCGI');
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$dispatcher->pre_startup_setup;
SL::FCGIFixes::apply_fixes();
$dispatcher->pre_startup_checks;
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my $request = FCGI::Request();
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while ($request->Accept() >= 0) {
$dispatcher->handle_request($request);
exit if _memory_usage_is_too_high();
}
a4e48368 Sven Schöling
1;