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in reply to In perl socket programming how to send a data from client and receive it from server and how to get number of clients processes and client ID?

how can I get the client ID and client count at server script?

You already have the client count because you are storing a running count of the file descriptors in @clients and therefore the client count is scalar @clients (or $#clients + 1 if you prefer). As for the client ID it depends entirely what you mean by that.

open my $fh, ">&=$fn" or warn $! and die;

Can you explain why you warn $! and die here rather than just die $!?

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Re^2: In perl socket programming how to send a data from client and receive it from server and how to get number of clients processes and client ID?
by choroba (Archbishop) on May 01, 2019 at 07:52 UTC
    Maybe the problem is the number of clients doesn't decrease when a client disconnects? It's possible to send a "goodbye" message to the server, but sometimes the connection gets lost without a chance to say anything, in which case a timeout (and maybe a keep-alive message) might help. Also, why is the initial number of clients set to -1?

    map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]