Mercurial > hg > graal-compiler
view src/share/vm/gc_implementation/shared/isGCActiveMark.hpp @ 266:2214b226b7f0
6724367: par compact could clear less young gen summary data
Reviewed-by: jmasa, apetrusenko
author | jcoomes |
---|---|
date | Fri, 11 Jul 2008 16:11:50 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ // This class provides a method for block structured setting of the // _is_gc_active state without requiring accessors in CollectedHeap class IsGCActiveMark : public StackObj { public: IsGCActiveMark() { CollectedHeap* heap = Universe::heap(); assert(!heap->is_gc_active(), "Not reentrant"); heap->_is_gc_active = true; } ~IsGCActiveMark() { CollectedHeap* heap = Universe::heap(); assert(heap->is_gc_active(), "Sanity"); heap->_is_gc_active = false; } };