hg: jdk/submit: 8195099: Concurrent safe-memory-reclamation mechanism

[robbin.ehn at oracle.com]

Changeset: 69d7398038c5
Author:    rehn
Date:      2018-04-18 09:25 +0200
URL:       http://hg.openjdk.java.net/jdk/submit/rev/69d7398038c5

8195099: Concurrent safe-memory-reclamation mechanism
Summary: This implement a globalcounter with RCU semantics.
Reviewed-by: acorn, coleenp, dcubed, eosterlund, gziemski, mlarsson, kbarrett, dholmes

! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp
+ src/hotspot/share/utilities/globalCounter.cpp
+ src/hotspot/share/utilities/globalCounter.hpp
+ src/hotspot/share/utilities/globalCounter.inline.hpp
+ test/hotspot/gtest/utilities/test_globalCounter.cpp
+ test/hotspot/gtest/utilities/utilitiesHelper.inline.hpp