8202794: Native Unix code should use readdir rather than readdir_r

[Alan Bateman]

On 17/07/2018 04:57, Brian Burkhalter wrote:
> https://bugs.openjdk.java.net/browse/JDK-8202794
>
> Continues thread [1] with subject line updated to match the issue summary. Part of this general problem was addressed in [2].
>
> The patch is in effect that proposed in thread [1] less the changes in [2]:
>
> http://cr.openjdk.java.net/~bpb/8202794/webrev.00/
>
> Thanks to Bernard Blaser for the patch.
>
> There were no build errors on Linux, macOS, nor Solaris, nor in the usual set of regression tests on these platforms.
>
For serviceability-dev but I assume OperatingSystemImpl.c should move to 
readdir64 to be consistent with the other usages.

Separately, we have few inconsistencies (including in TimeZone_md.c and 
UnixFileSystem_md.c) where opendir/closedir is used instead of 
opendir64/closedir64. Looks like the AIX port may have run into issues 
as it redefines them. Something for a separate issue of course.

-Alan