git: openjdk/jdk20u: master: 8307425: Socket input stream read burns CPU cycles with back-to-back poll(0) calls

[Daniel Fuchs]

Changeset: 23024545
Author:    Daniel Fuchs <dfuchs at openjdk.org>
Date:      2023-05-19 13:20:47 +0000
URL:       https://git.openjdk.org/jdk20u/commit/230245458c364128eab4ce0fa5b1910a9d3c0df8

8307425: Socket input stream read burns CPU cycles with back-to-back poll(0) calls

Backport-of: 73ac710533a45bf5ba17f308aa49556b877b8bf9

! src/java.base/share/classes/sun/nio/ch/DatagramChannelImpl.java
! src/java.base/share/classes/sun/nio/ch/NioSocketImpl.java
! src/java.base/share/classes/sun/nio/ch/SelChImpl.java