Mercurial > hg > truffle
view src/share/vm/opto/classes.cpp @ 4712:e7dead7e90af
7117303: VM uses non-monotonic time source and complains that it is non-monotonic
Summary: Replaces calls to os::javaTimeMillis(), which does not (and cannot) guarantee monotonicity, in GC code to an equivalent expression that uses os::javaTimeNanos(). os::javaTimeNanos is guaranteed monotonically non-decreasing if the underlying platform provides a monotonic time source. Changes in OS files are to make use of the newly defined constants in globalDefinitions.hpp.
Reviewed-by: dholmes, ysr
author | johnc |
---|---|
date | Mon, 19 Dec 2011 10:02:05 -0800 |
parents | f95d63e2154a |
children | c9ccd7b85f20 |
line wrap: on
line source
/* * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "opto/addnode.hpp" #include "opto/callnode.hpp" #include "opto/cfgnode.hpp" #include "opto/connode.hpp" #include "opto/divnode.hpp" #include "opto/locknode.hpp" #include "opto/loopnode.hpp" #include "opto/machnode.hpp" #include "opto/memnode.hpp" #include "opto/mulnode.hpp" #include "opto/multnode.hpp" #include "opto/node.hpp" #include "opto/rootnode.hpp" #include "opto/subnode.hpp" #include "opto/vectornode.hpp" // ---------------------------------------------------------------------------- // Build a table of virtual functions to map from Nodes to dense integer // opcode names. int Node::Opcode() const { return Op_Node; } #define macro(x) int x##Node::Opcode() const { return Op_##x; } #include "classes.hpp" #undef macro