[RFC/PATCH glibc 0/2] setting working dir in posix_spawn()

[Jonathan Nieder <jrnieder at gmail dot com>]

(pruned cc's, +cc:libc-alpha)

Eric Blake wrote:
> On 08/26/2010 12:18 AM, Jonathan Nieder wrote:

>> Do you think there would be any interest in a posix_spawn() variant
>> that takes a dir parameter?  I am imagining something like this:
>
> Of your variants, I would most prefer:
>
>>  int posix_spawn_file_actions_addchdir(posix_spawn_file_actions_t
>>	*file_actions, int dirfd);

Okay, here's a proof of concept (for the easy case --- a fork()-
based implementation for Linux).  Patches apply to 8b2b771^.

> For that matter, it may also be worth adding
> posix_spawn_file_actions_addopenat, which mirrors the recent
> addition of openat() semantics.

Sounds like a good idea.  I did not try it because I did not want to
think about whether it would cause the __spawn_action struct to grow
(and if so, what ramifications that would have, if any).

Thoughts?
Jonathan Nieder (2):
  Fix typo in posix_spawn_file_actions_addclose() implementation
  Implement fchdir action for posix_spawn()

 NEWS                                               |    4 +++-
 posix/Makefile                                     |    2 +-
 posix/Versions                                     |    3 +++
 posix/spawn.h                                      |    8 ++++++++
 ...faction_addclose.c => spawn_faction_addchdir.c} |   10 +++++-----
 posix/spawn_faction_addclose.c                     |    2 +-
 posix/spawn_int.h                                  |    7 ++++++-
 sysdeps/posix/spawni.c                             |    6 ++++++
 8 files changed, 33 insertions(+), 9 deletions(-)
 copy posix/{spawn_faction_addclose.c => spawn_faction_addchdir.c} (86%)

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1.7.2.2