Hi, I am trying to create a non-blocking client / server app, using INET sockets. I am on ActiveState Perl on Win32

I have read the entire (every page ;-) of Network Programming With Perl (great book, but I am still stuck)

My program leaks 4K chunks of something quite regularly (by looking at taskmanager.)

Anyone mind running these 2 programs and see if it also leaks for you? Of course if you spot the bug that would be GREAT !!!

All error checking has been removed for readability

CLIENT ------ 
use IO::Socket;
use IO::Select;
use Time::HiRes;
use strict;

for (1..500)
{
    my $socket = IO::Socket::INET->new("localhost:12002") or die "no s
+ocket";
    print $socket "this is a test 123\n";
    print $socket "this is a test 456\n";
    Time::HiRes::sleep(.5);
    $socket->close() or die "error closing";
}

[download]
SERVER ------ 
use IO::Socket;
use IO::Select;
use Time::HiRes;
use strict;

my  $listen_socket;   
my  $readers;         
my  %sessions;        


CreateListener();
while (1)
{
    Poll();
    print ".";
    Time::HiRes::sleep(.08);
}

sub CreateListener()
{
    $listen_socket = IO::Socket::INET->new(LocalPort => 12002,
                                           Proto     => 'tcp',
                                           Reuse     => 1,
                                           Listen    => 50);
    $listen_socket->blocking(0);
    $readers = IO::Select->new($listen_socket);
    $readers->add($listen_socket);
}

sub Poll
{
    my @ready = $readers->can_read(0);
    return if (!@ready);

    my $handle = shift @ready;
    if ($handle)
    {
        if ($handle eq $listen_socket)    
        {
            my $connect = $listen_socket->accept();
            $sessions{"$connect"}{status} = 'first_connect';
            $readers->add($connect);
        }
        else
        {
            my $user_input;
            my $bytes = sysread($handle, $user_input, 16384);
            if ($bytes && $bytes > 0)
            {
                chomp($user_input);
                
                if ($sessions{"$handle"}{status} eq "first_connect")
                {
                    # Save data until socket is closed...
                    $sessions{"$handle"}{status} = "next_connect";
                    $sessions{"$handle"}{data} = $user_input;
                }
                else
                {
                    # Append data until socket is closed...
                    $sessions{"$handle"}{data} .= $user_input;
                }
            }
            if (!$bytes)
            {
                # Got it all
                print $sessions{"$handle"}{data} . "\n";
    
                # Close this socket
                $readers->remove($handle);
                delete $sessions{"$handle"}{status};
                delete $sessions{"$handle"}{data};
                close $handle;
                undef $handle;
            }
        }
    }
}

[download]

In reply to nonblocking but leaking... by smackdab

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