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annotate src/share/vm/gc_implementation/g1/g1AllocationContext.hpp @ 20445:e5668dcf12e9

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8057818: collect allocation context statistics at gc pauses Reviewed-by: mikael, jmasa
author jcoomes
date Wed, 10 Sep 2014 13:01:13 -0700
parents 227a9e5e4b4a
children fa6c442c59ee
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1 /*
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2 * Copyright (c) 2014, 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_G1_G1ALLOCATIONCONTEXT_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCATIONCONTEXT_HPP
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27
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28 #include "memory/allocation.hpp"
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29
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30 typedef unsigned char AllocationContext_t;
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31
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32 class AllocationContext : AllStatic {
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33 public:
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34 // Currently used context
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35 static AllocationContext_t current() {
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36 return 0;
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37 }
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38 // System wide default context
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39 static AllocationContext_t system() {
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40 return 0;
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41 }
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42 };
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43
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44 class AllocationContextStats: public StackObj {
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45 public:
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46 inline void clear() { }
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47 inline void update(bool full_gc) { }
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48 inline void update_at_remark() { }
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49 };
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50
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51 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1ALLOCATIONCONTEXT_HPP