Re: SIGPIPE in TAP tests - Mailing list pgsql-hackers

From Michael Paquier
Subject Re: SIGPIPE in TAP tests
Date
Msg-id CAB7nPqSPG8hi1K9o-9+y6km5fJqMKXZkD_mr=p8W+MD_j9ORwQ@mail.gmail.com
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In response to Re: SIGPIPE in TAP tests  (Noah Misch <noah@leadboat.com>)
List pgsql-hackers
On Mon, Dec 11, 2017 at 4:32 PM, Noah Misch <noah@leadboat.com> wrote:
> On Mon, Dec 11, 2017 at 04:19:52PM +0900, Michael Paquier wrote:
>> On Sun, Dec 10, 2017 at 6:02 AM, Noah Misch <noah@leadboat.com> wrote:
>
>> If SIGPIPE is ignored then test output just stops after generating the
>> FATAL message. Oops.
>
> You mean "If SIGPIPE is not ignored ...", right?

Yes, sorry.

>> > To fix the actual failures, we can cease sending "SELECT 1"; it's enough to
>> > disconnect immediately.  Patch attached.
>>
>> Perhaps you could use an empty string instead? I feel a bit uneasy
>> about passing an undefined object to IPC::Run::run.
>
> IPC::Run documents the equivalence of undef and '' in this context; search for
> "close a child processes stdin" in
> http://search.cpan.org/~rbs/IPC-Run-0.78/lib/IPC/Run.pm.  Thus, I expect both
> spellings to work reliably, and I find "undef" slightly more evocative.

Thanks, I missed this bit. No objections to use undef then.
-- 
Michael


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