Re: [PATCH] Prefer sysconf(_SC_OPEN_MAX) over getrlimit(RLIMIT_NOFILE,...)

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"Joachim Schmitz" <jojo@xxxxxxxxxxxxxxxxxx> writes:

> Signed-off-by: Joachim Schmitz <jojo@xxxxxxxxxxxxxxxxxx>
> ---
>  sha1_file.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/sha1_file.c b/sha1_file.c
> index af5cfbd..76714ad 100644
> --- a/sha1_file.c
> +++ b/sha1_file.c
> @@ -747,6 +747,9 @@ static int open_packed_git_1(struct packed_git *p)
>                 return error("packfile %s index unavailable", p->pack_name);
>
>         if (!pack_max_fds) {
> +#ifdef _SC_OPEN_MAX
> +               unsigned int max_fds = sysconf(_SC_OPEN_MAX);
> +#else
>                 struct rlimit lim;
>                 unsigned int max_fds;
>
> @@ -754,6 +757,7 @@ static int open_packed_git_1(struct packed_git *p)
>                         die_errno("cannot get RLIMIT_NOFILE");
>
>                 max_fds = lim.rlim_cur;
> +#endif
>
>                 /* Save 3 for stdin/stdout/stderr, 22 for work */
>                 if (25 < max_fds)
> --
> 1.7.12

Looks sane but it would be more readable to make this a small helper
function, so that we do not need to have #ifdef/#endif in the
primary flow of the code.

By the way, I noticed that you seem to be sending patches out of
git, instead of "diff -ru", which is a good sign ;-).  But all of
your patches are whitespace damaged and cannot be applied X-<.

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