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#!/usr/bin/perl
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use strict;
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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;
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sub _parse_number_with_unit {
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my ($number) = @_;
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return undef unless defined $number;
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return $number unless $number =~ m{^ \s* (\d+) \s* ([kmg])b \s* $}xi;
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my %factors = (K => 1024, M => 1024 * 1024, G => 1024 * 1024 * 1024);
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return $1 * $factors{uc $2};
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}
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sub _memory_usage_is_too_high {
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return undef unless $::lx_office_conf{system};
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my %limits = (
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rss => _parse_number_with_unit($::lx_office_conf{system}->{memory_limit_rss}),
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size => _parse_number_with_unit($::lx_office_conf{system}->{memory_limit_vsz}),
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);
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# $::lxdebug->dump(0, "limits", \%limits);
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return undef unless $limits{rss} || $limits{vsz};
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my %usage;
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my $in = IO::File->new("/proc/$$/status", "r") or return undef;
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while (<$in>) {
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chomp;
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$usage{lc $1} = _parse_number_with_unit($2) if m{^ vm(rss|size): \s* (\d+ \s* [kmg]b) \s* $}ix;
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}
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$in->close;
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# $::lxdebug->dump(0, "usage", \%usage);
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foreach my $type (keys %limits) {
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next if !$limits{$type};
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next if $limits{$type} >= ($usage{$type} // 0);
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$::lxdebug->message(LXDebug::WARN(), "Exiting due to memory size limit reached for type '${type}': limit " . $limits{$type} . " bytes, usage " . $usage{$type} . " bytes");
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return 1;
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}
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return 0;
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}
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our $dispatcher = SL::Dispatcher->new('FastCGI');
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$dispatcher->pre_startup_setup;
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SL::FCGIFixes::apply_fixes();
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$dispatcher->pre_startup_checks;
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my $request = FCGI::Request();
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while ($request->Accept() >= 0) {
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$dispatcher->handle_request($request);
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exit if _memory_usage_is_too_high();
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}
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1;
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