http://www.perlmonks.org?node_id=644428


in reply to Re^4: How to do simultaneous reads and writes to/from a socket?
in thread How to do simultaneous reads and writes to/from a socket?

Better. Try changing line 16 to:

ioctl( $remote, 0x8004667e, do{ local $_ = 1; \$_ } ) or die $!;

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