#!perl
use Config;
use File::Basename qw(&basename &dirname);
use Cwd;

$origdir = cwd;
chdir dirname($0);
$file = basename($0, '.PL');
$file .= $^O eq 'VMS' ? '.com' : '.pl';

open OUT,">$file" or die "Can't create $file: $!";

print "Extracting $file (with variable substitutions)\n";

print OUT <<"!GROK!THIS!";
$Config{startperl} -w
!GROK!THIS!

# In the following, perl variables are not expanded during extraction.

print OUT <<'!NO!SUBS!';
# file: web_fork.pl
# Figure 14.3: A forking web server

use strict;
use IO::Socket;
use IO::File;
use IO::Select;
use Daemon;
use Web;

use constant PIDFILE => '/tmp/web_fork.pid';

my $DONE = 0;
$SIG{INT}  = $SIG{TERM} = sub { $DONE++ };

my $port = shift || 8080;
my $socket = IO::Socket::INET->new( LocalPort => $port,
                                    Listen    => SOMAXCONN,
                                    Reuse     => 1 ) or die "Can't create listen socket: $!";
my $IN = IO::Select->new($socket);

# create PID file, initialize logging, and go into the background
init_server(PIDFILE);

warn "Listening for connections on port $port\n";

# accept loop
while (!$DONE) {
  next unless $IN->can_read;
  next unless my $c = $socket->accept;
  my $child = launch_child();
  unless ($child) {
    close $socket;
    handle_connection($c);
    exit 0;
  }
  close $c;
}

warn "Normal termination\n";
!NO!SUBS!
close OUT or die "Can't close $file: $!";
chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
chdir $origdir;