RFR: 8237830: support O_CLOEXEC in os::open on other OS than Linux

[David Holmes]

Hi Matthias,
On 27/01/2020 10:47 pm, Baesken, Matthias wrote:
> Hello, please review my change that adds O_CLOEXEC  in HS os::open  for AIX and BSD/macOS .

Do we know when O_CLOEXEC support was added to those platforms? Do we 
know that the flag is simply ignored if used on a platform prior to that 
support existing?

Thanks,
David

> Change
> 
> https://bugs.openjdk.java.net/browse/JDK-8043780
> 
> introduced the usage of O_CLOEXEC in os::open on Linux.
> 
> We might do the same on other UNIX OS for example BSD/Mac and AIX (AIX 7.X  has  O_CLOEXEC).
> 
> 
> Bug/webrev :
> 
> https://bugs.openjdk.java.net/browse/JDK-8237830
> 
> http://cr.openjdk.java.net/~mbaesken/webrevs/8237830.0/
> 
> Thanks, Matthias
> 
>