Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

WARNING: I'm afraid this message is actually irrelevant. See EDIT note at the end.

Well, you can have your two processes communicate with yet another named pipe. I really think you should (re-)read perlipc. There are lots of examples for this kind of stuff. Check out the open() command for instance. You can use it to fork and create a named pipe in the same time. See the "Safe Pipe Opens" section.

Maybe something like this:

if (my $pid = open(JSON, '|-') { # database stuff print JSON $json; } else { # this is the child fork. # STDIN here is actually JSON in the other fork. # network stuff my $json = <>; # some more network stuff I guess }

EDIT I've just realized this wont solve your issue since the child process would block waiting for data from the parent process. It can't do that *AND* act as a network server at the same time. It only moves the blocking problem from one place to an other. So I'm sorry, I don't know.

In reply to Re^3: Simultaneously reading from a file and serving data by grondilu
in thread Simultaneously reading from a file and serving data by wazoox

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others pondering the Monastery: (7)
    As of 2018-05-24 16:48 GMT
    Find Nodes?
      Voting Booth?