hg: jdk/jdk: 8203369: Check for both EAGAIN and EWOULDBLOCK error codes

[ivan.gerasimov at oracle.com]

Changeset: 69204b98dc3d
Author:    igerasim
Date:      2018-05-25 12:44 -0700
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/69204b98dc3d

8203369: Check for both EAGAIN and EWOULDBLOCK error codes
Reviewed-by: alanb

! src/java.base/linux/classes/sun/nio/fs/LinuxWatchService.java
! src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template
! src/java.base/unix/native/libnet/PlainSocketImpl.c
! src/java.base/unix/native/libnio/ch/DatagramChannelImpl.c
! src/java.base/unix/native/libnio/ch/IOUtil.c
! src/java.base/unix/native/libnio/ch/ServerSocketChannelImpl.c
! src/jdk.sctp/unix/native/libsctp/SctpChannelImpl.c