Re: Yet another Open3 issue . . . or is it?

the sysread always returns 0 bytes, with no warnings or errors.

But you're not checking for errors.

      my $bytes = sysread($handle,$buf,1024);
      if ($bytes == 0) {
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should be

      my $bytes = sysread($handle,$buf,1024);
      die "sysread: $!" if !defined($bytes);
      if ($bytes == 0) {
[download]

You imply you have warnings turned on, in which case this won't help since you'd get "Use of uninitialized value in numeric eq (==)" on error.

Comment on Re: Yet another Open3 issue . . . or is it? Select or Download Code

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Re^2: Yet another Open3 issue . . . or is it? by Anonymous Monk on Jul 15, 2010 at 18:42 UTC
Thanks for your reply, ikegami. The code I posted is really an "overview" of what appears in several modules, and in fact we are checking for errors as you described: `if (not defined $bytes) { warn . . . $sel->remove($handle); next; }` [download] At this point I'd love to get an error or warning, but unfortunately it simply returns 0 bytes as if the handle were empty.	[reply] [d/l]