RFR: 8259943: FileDescriptor.close0 does not handle EINTR

[Brian Burkhalter]

On Thu, 21 Jan 2021 07:32:39 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Please review this small change to handle `EINTR` from `close()` in `fileDescriptorClose()`. The function `handleGetLength()` is also changed to handle `EINTR` from `fstat64()` to match other uses of `fstat64()` in the file.
>
> src/java.base/unix/native/libjava/io_util_md.c line 167:
> 
>> 165:     } else {
>> 166:         int result;
>> 167:         RESTARTABLE(close(fd), result);
> 
> close is not restartable (except AIX apparently). This means you have to explicitly handle EINTR, see UnixNativeDispatcher.close0 for an example.

I had it that way before creating the PR; will revert.

-------------

PR: https://git.openjdk.java.net/jdk/pull/2173