in reply to Re: Shared memory and asynchronous access
in thread Shared memory and asynchronous access

When i first saw this i wondered what select was doing in there, with empty texts for RBITS,WBITS,EBITS even. Then i realized it was just a sub-second sleep. is that correct?

Second i wondered what empty text strings would do to select. Didnt try it, but http://perldoc.perl.org/functions/select.html suggests this select(undef, undef, undef, 0.001); instead.

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Re^3: Shared memory and asynchronous access
by BrowserUk (Patriarch) on Apr 06, 2017 at 06:58 UTC
    Then i realized it was just a sub-second sleep. is that correct?

    Yes.

    http://perldoc.perl.org/functions/select.html suggests this select(undef, undef, undef, 0.001); instead.

    Indeed. The empty strings version is just less typing; and appears to have no measurable affect on the functionality.

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Re^3: Shared memory and asynchronous access
by marto (Cardinal) on Apr 06, 2017 at 08:09 UTC
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[d/l]

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