in reply to
Re^2: Synchronizing STDERR and STDOUT
in thread Synchronizing STDERR and STDOUT
I was suggesting you remove a layer of abstraction - instead of keeping the stream loop inside of TAPx::Parser, let it remain outside so that it doesn't have to worry at all about blocking and synchronization and what not.
The POE part is just to demonstrate that this approach (push parsing) works well in more situations than stream based iterators (that is, streams are usable with push parsers, but not vice versa).