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Re: [PATCHv3 04/13] strbuf: add strbuf_read_once to read without blocking

From
Jacob Keller <jacob.keller@gmail.com>
Date
Sep 22, 2015, 06:29 UTC
Message-ID
<CA+P7+xpC+EiNTBqgwd0We+f-_xqfY0xx2BzvTGC7Owk-ay10fw@mail.gmail.com>
In-Reply-To
<xmqqoagv71es.fsf@gitster.mtv.corp.google.com>
On Mon, Sep 21, 2015 at 5:17 PM, Junio C Hamano <gitster@pobox.com> wrote:
Show 13 quoted lines
> Stefan Beller <sbeller@google.com> writes:
>
>> The new call will read a fd into a strbuf once. The underlying call
>
> "read from a fd"
>
>> xread_nonblock is meant to execute non blockingly if the fd is set to
>> O_NONBLOCK.
>
> The latter sentence adds more questions than it answers.  If the
> file descriptor is not set to non-blocking, what happens?  Is it a
> bug in the caller, and if so do we give help to diagnose such a bug?
>

I would vote for adding debugging for calling xread with O_NONBLOCK and for calling xread_nonblock without O_NONBLOCK.. I'm not sure the best way to do this, but it certainly feels like a bug to call xread with O_NONBLOCK set... And the same here...

Regards, Jake

Previous: Junio C HamanoNext: Stefan Beller
Message 28 of 48 in “[PATCHv3 00/13] fetch submodules in parallel and a preview on parallel "submodule update"”
  1. Stefan BellerSep 21, 2015
  2. 01/13 Sending "Fetching submodule <foo>" output to stderrStefan Beller, Sep 21, 2015
  3. Junio C HamanoSep 21, 2015
  4. 02/13 xread: poll on non blocking fdsStefan Beller, Sep 21, 2015
  5. Junio C HamanoSep 21, 2015
  6. Torsten BögershausenSep 22, 2015
  7. Jacob KellerSep 22, 2015
  8. Torsten BögershausenSep 22, 2015
  9. Junio C HamanoSep 22, 2015
  10. Jeff KingSep 22, 2015
  11. Junio C HamanoSep 22, 2015
  12. Stefan BellerSep 23, 2015
  13. Junio C HamanoSep 23, 2015
  14. Jeff KingSep 23, 2015
  15. Eric SunshineSep 21, 2015
  16. Junio C HamanoSep 22, 2015
  17. Stefan BellerSep 22, 2015
  18. Junio C HamanoSep 22, 2015
  19. Stefan BellerSep 22, 2015
  20. 03/13 xread_nonblock: add functionality to read from fds nonblockinglyStefan Beller, Sep 21, 2015
  21. Junio C HamanoSep 22, 2015
  22. Junio C HamanoSep 22, 2015
  23. Jacob KellerSep 22, 2015
  24. Jacob KellerSep 22, 2015
  25. Junio C HamanoSep 22, 2015
  26. 04/13 strbuf: add strbuf_read_once to read without blockingStefan Beller, Sep 21, 2015
  27. Junio C HamanoSep 22, 2015
  28. Jacob KellerSep 22, 2015
  29. 05/13 run-command: factor out return value computationStefan Beller, Sep 21, 2015
  30. Junio C HamanoSep 22, 2015
  31. 06/13 run-command: add an asynchronous parallel child processorStefan Beller, Sep 21, 2015
  32. Junio C HamanoSep 22, 2015
  33. Stefan BellerSep 22, 2015
  34. Junio C HamanoSep 22, 2015
  35. Stefan BellerSep 22, 2015
  36. Junio C HamanoSep 22, 2015
  37. Stefan BellerSep 22, 2015
  38. Junio C HamanoSep 22, 2015
  39. 07/13 fetch_populated_submodules: use new parallel job processingStefan Beller, Sep 21, 2015
  40. Junio C HamanoSep 22, 2015
  41. 08/13 submodules: allow parallel fetching, add tests and documentationStefan Beller, Sep 21, 2015
  42. 09/13 submodule config: keep update strategy aroundStefan Beller, Sep 21, 2015
  43. Eric SunshineSep 22, 2015
  44. Stefan BellerSep 22, 2015
  45. 10/13 git submodule update: cmd_update_recursiveStefan Beller, Sep 21, 2015
  46. 11/13 git submodule update: cmd_update_cloneStefan Beller, Sep 21, 2015
  47. 12/13 git submodule update: cmd_update_fetchStefan Beller, Sep 21, 2015
  48. 13/13 Rewrite submodule update in CStefan Beller, Sep 21, 2015

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