file event in perl-Tk on cygwin (using POE)
Bob.Smart@csiro.au
Bob.Smart@csiro.au
Sat Jun 7 00:05:00 GMT 2003
POE + perl-tk is a really nice environment for
writing event driven programs. It works fine on
linux [though the debugging info is not always
all you would wish for].
I want to write a portable program, and I'm trying
to get it to work under cygwin. It goes into an
infinite loop in IO.pm, specifically:
perl5\site_perl\5.8.0\cygwin-multi-64int\Tk\Event\IO.pm.
What happens there is that a sub FILENO:
sub FILENO
{
my $obj = shift;
my $h = $obj->handle;
return fileno($h);
}
the final call to fileno actually goes straight
back into FILENO. [I tried putting CORE:: in front
but that made no difference]. So it looks like
$obj->handle returns $obj instead of something
more basic. I've tried both win32 and x11 versions
of Tk800.023-1 which seems to be the last cygwin
compatible version.
Presumably it is a cygwin problem, but I'm happy
to entertain perl-Tk or POE workarounds. Or I'll
have to try to fix it [otherwise the Java proponents
will say "I told you so"].
The file handle is almost certainly stdout or stderr
of a child program (run using POE::Wheel::Run).
So I guess my questions are:
1. Will I do better with other versions of cygwin,
perl, perl-Tk, POE?
2. Any suggestions for fixes?
3. Any suggestions for workarounds?
4. Any suggestions for where to look to try to fix it?
Bob
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