RFR: 8259943: FileDescriptor.close0 does not handle EINTR

[Alan Bateman]

On Wed, 20 Jan 2021 23:01:19 GMT, Brian Burkhalter <bpb 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.

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