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This queue is for tickets about the IO CPAN distribution.

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The Basics
Id: 90091
Status: resolved
Priority: 0/
Queue: IO

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Owner: Nobody in particular
Requestors: victor [...] vsespb.ru
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Subject: no way to detect errors and documentation issue
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Hello. Correct me if I wrong. Show quoted text
> select ( READ, WRITE, EXCEPTION [, TIMEOUT ] ) > ... > " Upon error an empty list is returned."
however, empty list will be returned when core select() return 0 or -1. in both cases. And I think "-1" is "error" code (i.e. errno $! is set), while "0" is not error (one should not test errno). So, documentation is wrong. Also there is no way to check for errors in other methods, like can_read etc. It would be pretty useful to handle errors, like EINTR, and distinct it from other conditions (like timeout and (not sure) eof in filehandles).
Ticket migrated to github as https://github.com/toddr/IO/issues/25


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