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Re: [PATCH v4] gc: reject if another gc is running, unless --force is given

From
Duy Nguyen <pclouds@gmail.com>
Date
Aug 10, 2013, 00:45 UTC
Message-ID
<CACsJy8D8EHpPGrc8MZnpvmh1j1LDudoZ0OO-zyfuDmhwLJqNsA@mail.gmail.com>
In-Reply-To
<CAPrKj1bO1jBsv73beA6LoeN09S-jWq8FYOP+WQ-AFwb1dn4Wsw@mail.gmail.com>
On Fri, Aug 9, 2013 at 11:29 PM, Andres Perera <andres.p@zoho.com> wrote:
Show 5 quoted lines
> On Thu, Aug 8, 2013 at 6:35 AM, Nguyễn Thái Ngọc Duy <pclouds@gmail.com> wrote:
>> +       uintmax_t pid;
>
> pid_t is always an signed type, therefore unintmax_t does not make
> sense as a catch all value

I only catch real process id. In practice we don't have processes with negative pid_t, do we? I can't find any document about this, but at least waitpid seems to treat negative pid (except -1) just as an indicator while the true pid is the positive counterpart.

> fork() returns -1 on failure, and its return type is pid_t. i don't
> know what fantasy unix system has an unsigned pid_t
-- 
Duy
Previous: Junio C HamanoNext: Andreas Schwab
Message 19 of 20 in “gc: reject if another gc is running, unless --force is given”
  1. gc: reject if another gc is running, unless --force is givenNguyễn Thái Ngọc Duy, Aug 3, 2013
  2. gc: reject if another gc is running, unless --force is givenNguyễn Thái Ngọc Duy, Aug 3, 2013
  3. Ramkumar RamachandraAug 3, 2013
  4. Duy NguyenAug 3, 2013
  5. Johannes SixtAug 3, 2013
  6. Duy NguyenAug 3, 2013
  7. Johannes SixtAug 3, 2013
  8. gc: reject if another gc is running, unless --force is givenNguyễn Thái Ngọc Duy, Aug 5, 2013
  9. Junio C HamanoAug 5, 2013
  10. Ramkumar RamachandraAug 5, 2013
  11. Junio C HamanoAug 6, 2013
  12. Ramkumar RamachandraAug 6, 2013
  13. gc: reject if another gc is running, unless --force is givenNguyễn Thái Ngọc Duy, Aug 8, 2013
  14. Junio C HamanoAug 8, 2013
  15. Duy NguyenAug 9, 2013
  16. Junio C HamanoAug 9, 2013
  17. Andres PereraAug 9, 2013
  18. Junio C HamanoAug 9, 2013
  19. Duy NguyenAug 10, 2013
  20. Andreas SchwabAug 10, 2013

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