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annotate src/share/vm/gc_implementation/shared/isGCActiveMark.hpp @ 1972:f95d63e2154a

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6989984: Use standard include model for Hospot Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg
author stefank
date Tue, 23 Nov 2010 13:22:55 -0800
parents c18cbe5936b8
children db9981fd3124
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1 /*
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2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_ISGCACTIVEMARK_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_ISGCACTIVEMARK_HPP
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27
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28 #ifndef SERIALGC
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29 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"
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30 #endif
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31
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32 // This class provides a method for block structured setting of the
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33 // _is_gc_active state without requiring accessors in CollectedHeap
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34
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35 class IsGCActiveMark : public StackObj {
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36 public:
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37 IsGCActiveMark() {
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38 CollectedHeap* heap = Universe::heap();
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39 assert(!heap->is_gc_active(), "Not reentrant");
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40 heap->_is_gc_active = true;
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41 }
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42
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43 ~IsGCActiveMark() {
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44 CollectedHeap* heap = Universe::heap();
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45 assert(heap->is_gc_active(), "Sanity");
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46 heap->_is_gc_active = false;
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47 }
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48 };
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49
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50 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_ISGCACTIVEMARK_HPP