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    <p>You need to share <code>$clients</code> via <code>share</code> from <a href="http://perldoc.perl.org/threads/shared.html" rel="nofollow noreferrer"><code>threads::shared</code></a>:</p> <pre><code>my $clients = &amp;share({}); </code></pre> <p>The old-fashioned syntax is due to a documented issue with Perl’s prototypes. If you have <a href="https://perldoc.perl.org/perl589delta.html" rel="nofollow noreferrer">at least Perl 5.8.9</a>, use the nicer</p> <pre><code>my $clients = shared_clone({}); </code></pre> <p>instead.</p> <p>You also want to protect <code>$clients</code> with a lock, <em>e.g.</em>,</p> <pre><code>my $clients_lock : shared; { lock $clients_lock; $clients-&gt;{time()} = fileno $connection; } </code></pre> <p>Finally, because <code>IO::Socket::INET</code> instances are Perl typeglobs, you can’t share them, so instead add their socket descriptors (from <a href="http://perldoc.perl.org/functions/fileno.html" rel="nofollow noreferrer"><code>fileno</code></a>) to <code>$clients</code> and then <code>fdopen</code> the socket when necessary with</p> <pre><code>open my $fh, "&gt;&amp;=", $sockdesc or warn ... </code></pre> <p>The program below repeats inbound data to the other connected sockets:</p> <pre><code>#!/usr/bin/perl use strict; use IO::Socket; use threads; use threads::shared; use Thread::Queue; # init my $clients = &amp;share({}); my $clients_lock : shared; my $queue = Thread::Queue-&gt;new; # thread that monitors threads-&gt;create("monitor"); # create the listen socket my $port = 12345; my $listenSocket = IO::Socket::INET-&gt;new( LocalPort =&gt; $port, Listen =&gt; 10, Proto =&gt; 'tcp', Reuse =&gt; 1 ); # make sure we are bound to the port die "Can't create a listening socket: $@" unless $listenSocket; print "Server ready. Waiting for connections on $port ... \n"; # wait for connections at the accept call while (my $connection = $listenSocket-&gt;accept) { # set client socket to non blocking my $nonblocking = 1; ioctl($connection, 0x8004667e, \\$nonblocking); # autoflush $connection-&gt;autoflush(1); # debug print "Accepted new connection\n"; # add to list { lock $clients_lock; $clients-&gt;{time()} = fileno $connection; } # start new thread and listen on the socket threads-&gt;create("readData", $connection); } sub readData { # socket parameter my ($client) = @_; # read client while (&lt;$client&gt;) { chomp; $queue-&gt;enqueue($_); } close $client; } sub monitor { # endless loop while (1) { # loop while there is something in the queue while ($queue-&gt;pending) { # get data from a queue my $data = $queue-&gt;dequeue; # loop all sockets { lock $clients_lock; while ( my ($key, $value) = each(%$clients) ) { # send to socket if (open my $fh, "&gt;&amp;=", $value) { print $fh "$data\n"; } else { warn "$0: fdopen $value: $!"; } } } } # wait 0,25 seconds select(undef, undef, undef, 0.25); } } close $listenSocket; </code></pre>
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    1. POHow do I save sockets in a hash and loop over them from another thread?
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    1. USGreg Bacon
    1. USGreg Bacon
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    1. POHow do I save sockets in a hash and loop over them from another thread?
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    1. CO+1 I had just figured out the same stuff.
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      1. USSinan Ünür
    2. COThankyou! Works like a charm now :)
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      1. USDieterve
    3. CO@Dieterve You're welcome!
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