If you reverse the test there is a window where data may be written to the
pipe between the two tests, and the data is subsequently lost.

Cheers,
Alistair
(on phone)

On Thu., 12 Apr. 2018, 09:04 K K Subbu, <kksubbu.ml at gmail.com> wrote:

> Hi,
>
> I stumbled upon the following method in OSProcess-Base package:
>
> ExternalPipe#atEnd
>
>   ^writer closed and: [self peek == nil]
>
> Shouldn't the test be reversed? In a pipe, the reader's peek buffer
> could be holding an object while the writer has closed its end.
>
> Regards .. Subbu
>
>
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