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#!/usr/bin/env perl
use strict;
use warnings;
use IO::Socket::INET;
use Encode ();
sub read_file {
my $filename = shift;
open my $IN, '<', $filename or die "Error while reading '$filename': $!";
local $/;
my $contents = <$IN>;
close $IN;
return $contents;
}
if (@ARGV < 2) {
print STDERR <<USAGE ;
Usage: tools/jvm/eval-client.pl TOKEN_FILE exit
Usage: tools/jvm/eval-client.pl TOKEN_FILE run args...
USAGE
exit 1;
}
@ARGV = map( Encode::decode_utf8($_), @ARGV );
my $info = scalar read_file shift @ARGV;
my ($port, $cookie) = $info =~ /(\d+) (\S+)$/m or die "cannot parse cookie file";
my $sock = IO::Socket::INET->new( PeerAddr => '127.0.0.1', PeerPort => $port, Proto => 'tcp' )
or die "cannot connect to eval server: $!\n";
$sock->syswrite( Encode::encode_utf8(join("\0", $cookie, @ARGV, "")) ) or die "syswrite: $!\n";
$sock->shutdown(1) or die "shutdown: $!\n"; # perldoc -f shutdown
my $buf;
while (1) {
defined($sock->sysread($buf, 4096)) or die "read: $!\n";
syswrite STDOUT, $buf;
last unless length $buf;
}
close $sock;
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