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ipxwrapper/tests/lib/IPXWrapper/DOSBoxServer.pm
2023-09-05 22:43:10 +01:00

113 lines
2.7 KiB
Perl

# IPXWrapper test suite
# Copyright (C) 2023 Daniel Collins <solemnwarning@solemnwarning.net>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 as published by
# the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
use strict;
use warnings;
package IPXWrapper::DOSBoxServer;
use File::Temp;
use IPC::Open3;
use POSIX qw(:signal_h);
use Proc::ProcessTable;
use Test::Spec;
sub new
{
my ($class, $port) = @_;
my $dosbox_conf = File::Temp->new();
print {$dosbox_conf} <<EOF;
[ipx]
ipx=true
[autoexec]
ipxnet startserver $port
EOF
my @command = ("xvfb-run", "-a", "-e" => "/dev/stdout",
"stdbuf", "-i0", "-o0", "-e0",
"dosbox", "-conf" => "$dosbox_conf");
note(join(" ", @command));
# No need for error checking here - open3 throws on failure.
my $pid = open3(my $in, my $out, undef, @command);
my $self = bless({
xvfb_run_pid => $pid,
}, $class);
my $output = "";
while(defined(my $line = <$out>))
{
$output .= $line;
$line =~ s/[\r\n]//g;
if($line =~ m/^IPX: Connected to server\./)
{
# We can't kill DOSBox by sending a signal to xvfb-run since it doesn't
# catch any signals and just dies, leaving orphan Xvfb and dosbox processes
# running.
#
# So we have to walk the process table and find the dosbox process owned by
# our xvfb-run process, which we can then directly kill and xvfb-run will
# clean up the Xvfb instance.
my @procs = @{ Proc::ProcessTable->new()->table() };
my $find_dosbox = sub
{
my ($find_dosbox, $ppid) = @_;
foreach my $child(grep { $_->ppid() == $ppid } @procs)
{
# if($child->cmdline->[0] eq "dosbox")
if($child->cmndline =~ m/^dosbox /)
{
return $child->pid;
}
my $dosbox_pid = $find_dosbox->($find_dosbox, $child->pid);
return $dosbox_pid if(defined $dosbox_pid);
}
return;
};
$self->{dosbox_pid} = $find_dosbox->($find_dosbox, $pid)
// die "Couldn't find DOSBox PID";
return $self;
}
}
die("Didn't get expected output from xvfb-run/dosbox:\n$output");
}
sub DESTROY
{
my ($self) = @_;
# Kill DOSBox, then wait for xvfb-run to clean up.
kill(SIGTERM, $self->{dosbox_pid});
waitpid($self->{xvfb_run_pid}, 0);
}
1;