in reply to Check connection state prior to send data

Take a look at select, IO::Select, PerlIPC.

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Re^2: Check connection state prior to send data
by Lucas Rey (Sexton) on Sep 24, 2016 at 07:30 UTC
    Sorry, I don't wish to be controversial, but your reply sounds like: "check perlmonks for solution" :-)
[reply]

      You achieved your wish. That's not controversial.

      With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
      Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
      "Science is about questioning the status quo. Questioning authority". I knew I was on the right track :)
      In the absence of evidence, opinion is indistinguishable from prejudice.
[reply]
        Let me explain, I don't want that you (or other users) write the code for me, but before post to perlmonks I search around the net. So, I'm here because I cannot find anything. :-) What you link is an interesting start point, but I already checked these pages without find a solution to my issue! ;)
[reply]

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