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Re: [PATCH 1/3] implement generic key/value map

From
Bert Wesarg <bert.wesarg@googlemail.com>
Date
Jul 14, 2011, 19:07 UTC
Message-ID
<CAKPyHN3VV4bmy2CF9vPsRG82EapFtUOCXNYO=mVAJs54QG===g@mail.gmail.com>
In-Reply-To
<20110714185539.GA27141@sigill.intra.peff.net>
On Thu, Jul 14, 2011 at 20:55, Jeff King <peff@peff.net> wrote:
Show 15 quoted lines
> On Thu, Jul 14, 2011 at 08:54:07PM +0200, Bert Wesarg wrote:
>
>> On Thu, Jul 14, 2011 at 20:52, Bert Wesarg <bert.wesarg@googlemail.com> wrote:
>> > On Thu, Jul 14, 2011 at 19:51, Jeff King <peff@peff.net> wrote:
>> >> +#define MAP_IMPLEMENT(name, ktype, vtype, cmp_fun, hash_fun) \
>> >
>> > This define should probably in the header too. Else this is completely useless.
>>
>> Ahh. One have to read patch 2/3, to see how to use this. Please feel
>> free to ignore this than.
>
> Yeah, you could treat this like a C++ template and assume random bits of
> code will instantiate a map of whatever types they need. But this is C,
> and we only want to instantiate once. So I just figured to keep the
> static list of whatever maps git needs in the map.[ch] files.

When I wrote such macros in the past, the 'generated' functions where all static. So one could instantiate a map multiple times in different compilation units where one need to access this type of map.

But I'm perfectly fine with your way, which is new to me.
Bert
>
> -Peff
>
Previous: Jeff KingNext: Jeff King
Message 10 of 57 in “[RFC/PATCHv2 0/6] generation numbers for faster traversals”
  1. Jeff KingJul 13, 2011
  2. 1/6 decorate: allow storing values instead of pointersJeff King, Jul 13, 2011
  3. Jonathan NiederJul 13, 2011
  4. Jeff KingJul 13, 2011
  5. Jeff KingJul 14, 2011
  6. 1/3 implement generic key/value mapJeff King, Jul 14, 2011
  7. Bert WesargJul 14, 2011
  8. Bert WesargJul 14, 2011
  9. Jeff KingJul 14, 2011
  10. Bert WesargJul 14, 2011
  11. Jeff KingJul 14, 2011
  12. Bert WesargJul 14, 2011
  13. 2/3 fast-export: use object to uint32 map instead of "decorate"Jeff King, Jul 14, 2011
  14. Sverre RabbelierJul 15, 2011
  15. Jeff KingJul 15, 2011
  16. 3/3 decorate: use "map" for the underlying implementationJeff King, Jul 14, 2011
  17. Junio C HamanoJul 14, 2011
  18. 0/5 macro-based key/value mapsJeff King, Aug 4, 2011
  19. 1/5 implement generic key/value mapJeff King, Aug 4, 2011
  20. 2/5 fast-export: use object to uint32 map instead of "decorate"Jeff King, Aug 4, 2011
  21. 3/5 decorate: use "map" for the underlying implementationJeff King, Aug 4, 2011
  22. 4/5 map: implement persistent mapsJeff King, Aug 4, 2011
  23. 5/5 implement metadata cache subsystemJeff King, Aug 4, 2011
  24. 0/2 patch-id cachingJeff King, Aug 4, 2011
  25. 1/2 cherry: read default configJeff King, Aug 4, 2011
  26. 2/2 cache patch ids on diskJeff King, Aug 4, 2011
  27. Jeff KingAug 4, 2011
  28. Jeff KingAug 5, 2011
  29. René ScharfeAug 5, 2011
  30. Jeff KingAug 6, 2011
  31. 2/6 add metadata-cache infrastructureJeff King, Jul 13, 2011
  32. Bert WesargJul 13, 2011
  33. Jeff KingJul 13, 2011
  34. Bert WesargJul 13, 2011
  35. Jeff KingJul 13, 2011
  36. Junio C HamanoJul 13, 2011
  37. Junio C HamanoJul 13, 2011
  38. Jeff KingJul 13, 2011
  39. 3/6 commit: add commit_generation functionJeff King, Jul 13, 2011
  40. Eric SunshineJul 13, 2011
  41. 4/6 pretty: support %G to show the generation number of a commitJeff King, Jul 13, 2011
  42. 5/6 check commit generation cache validity against graftsJeff King, Jul 13, 2011
  43. Eric SunshineJul 13, 2011
  44. Jeff KingJul 13, 2011
  45. 6/6 limit "contains" traversals based on commit generationJeff King, Jul 13, 2011
  46. Jeff KingJul 13, 2011
  47. Junio C HamanoJul 13, 2011
  48. Jeff KingJul 13, 2011
  49. Junio C HamanoJul 13, 2011
  50. Jeff KingJul 13, 2011
  51. Junio C HamanoJul 15, 2011
  52. Jeff KingJul 15, 2011
  53. Junio C HamanoJul 15, 2011
  54. Jeff KingJul 15, 2011
  55. Generation numbers and replacement objectsJakub Narebski, Jul 15, 2011
  56. Jeff KingJul 15, 2011
  57. Jakub NarebskiJul 16, 2011

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