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Re^3: IO::Socket Listen

by Eliya (Vicar)
on Dec 05, 2011 at 20:11 UTC ( #941912=note: print w/replies, xml ) Need Help??

in reply to Re^2: IO::Socket Listen
in thread IO::Socket Listen

but this program takes 5 minutes to respond

The problem probably is that the device isn't sending a newline, so the <$sock> (i.e. readline) keeps waiting for it until the socket is finally closed — which is likely what is happening due to a timeout after those 5 minutes...

Try sysread instead (with a length value larger than the response you expect).

while ( sysread $sock, $_, 1000 ) { print $_; }

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