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Re: [PATCH 08/10] revert: Introduce HEAD, TODO files to persist state, plan

From
Ramkumar Ramachandra <artagnon@gmail.com>
Date
Jun 2, 2011, 12:53 UTC
Message-ID
<BANLkTinc=9aW_y6s-Zb578QsMawnxFD55Q@mail.gmail.com>
In-Reply-To
<20110601193126.GC9730@elie>
Hi Jonathan,
Jonathan Nieder writes:
Show 6 quoted lines
> . If no, the "todo list" needs to be fully resolved to start out, and
>  then the cherry-pick loop can just walk through it.  In git API
>  terms, that means first populating the commit_list (for example
>  using a loop that gets revisions and inserts them at the end of a
>  commit_list, or by preparing the revision walk with "limited" flag
>  set), then walking through it with commit_list APIs.
Thanks. I picked this approach :)
On a slightly unrelated note, I just found out that the persist_todo
can't be called twice due to a lockfile API limitation* -- the
atexit(3) cleanup handler is supposed to have a linked list of
lockfiles to clean up. When one lockfile is used twice, it becomes a
circularly linked list, and the entire program hangs at exit time
since traversing a circularly linked list is never-ending. Couple of
comments:
1. By reading the lockfile implementation, I understand why this
happens -- can't it be implemented differently to remove this
limitation? If not, shouldn't this limitation be documented somewhere?
2. What can I do? It'll be inelegant to use the lockfile API while
persisting the first time, but not the second time -- is there any way
out of this?
Thanks again.
* You brought this up during one of our IRC conversations, but I
didn't understand it then. I do now.
-- Ram
Previous: Jonathan NiederNext: Jeff King
Message 31 of 37 in “Sequencer Foundations”
  1. 00/10 Sequencer FoundationsRamkumar Ramachandra, May 25, 2011
  2. 01/10 advice: Introduce error_resolve_conflictRamkumar Ramachandra, May 25, 2011
  3. 02/10 revert: Propogate errors upwards from do_pick_commitRamkumar Ramachandra, May 25, 2011
  4. Junio C HamanoMay 25, 2011
  5. Ramkumar RamachandraMay 26, 2011
  6. 03/10 revert: Eliminate global "commit" variableRamkumar Ramachandra, May 25, 2011
  7. Junio C HamanoMay 25, 2011
  8. 04/10 revert: Rename no_replay to record_originRamkumar Ramachandra, May 25, 2011
  9. 05/10 revert: Introduce struct to keep command-line optionsRamkumar Ramachandra, May 25, 2011
  10. 06/10 revert: Separate cmdline parsing from functional codeRamkumar Ramachandra, May 25, 2011
  11. 07/10 revert: Catch incompatible command-line options earlyRamkumar Ramachandra, May 25, 2011
  12. 08/10 revert: Introduce HEAD, TODO files to persist state, planRamkumar Ramachandra, May 25, 2011
  13. 09/10 revert: Implement parsing --continue, --abort and --skipRamkumar Ramachandra, May 25, 2011
  14. 10/10 revert: Implement --abort processingRamkumar Ramachandra, May 25, 2011
  15. Junio C HamanoMay 25, 2011
  16. 00/10 Sequencer FoundationsRamkumar Ramachandra, May 26, 2011
  17. 01/10 advice: Introduce error_resolve_conflictRamkumar Ramachandra, May 26, 2011
  18. 02/10 revert: Propogate errors upwards from do_pick_commitRamkumar Ramachandra, May 26, 2011
  19. 03/10 revert: Eliminate global "commit" variableRamkumar Ramachandra, May 26, 2011
  20. 04/10 revert: Rename no_replay to record_originRamkumar Ramachandra, May 26, 2011
  21. 05/10 revert: Introduce struct to keep command-line optionsRamkumar Ramachandra, May 26, 2011
  22. 06/10 revert: Separate cmdline parsing from functional codeRamkumar Ramachandra, May 26, 2011
  23. 07/10 revert: Catch incompatible command-line options earlyRamkumar Ramachandra, May 26, 2011
  24. 08/10 revert: Introduce HEAD, TODO files to persist state, planRamkumar Ramachandra, May 26, 2011
  25. Jonathan NiederMay 26, 2011
  26. Ramkumar RamachandraMay 26, 2011
  27. Ramkumar RamachandraMay 26, 2011
  28. Junio C HamanoMay 26, 2011
  29. Ramkumar RamachandraJun 1, 2011
  30. Jonathan NiederJun 1, 2011
  31. Ramkumar RamachandraJun 2, 2011
  32. Jeff KingJun 2, 2011
  33. Ramkumar RamachandraJun 8, 2011
  34. 09/10 revert: Implement parsing --continue, --abort and --skipRamkumar Ramachandra, May 26, 2011
  35. 10/10 revert: Implement --abort processingRamkumar Ramachandra, May 26, 2011
  36. Junio C HamanoMay 26, 2011
  37. Ramkumar RamachandraMay 27, 2011

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