because $_[0] is the same as $prch when you call tail_lines($prch, $_[0]), and this seems to be not what you want.
Sorry, hiseldl, you are not correct. The call to tail_lines is in an anonymous sub, which is a closure, which is passed a line of text by the Tk::IO mechanism.

See Tk::IO for more details

In reply to Re: Re: Atomic operations in perl and Tk::IO by rinceWind
in thread Atomic operations in perl and Tk::IO by rinceWind

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