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annotate src/share/vm/runtime/serviceThread.hpp @ 10241:d17700c82d7d

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8006088: Incompatible heap size flags accepted by VM Summary: Make processing of minimum, initial and maximum heap size more intiutive by removing previous limitations on allowed values, and make error reporting consistent. Further, fix errors in ergonomic heap sizing. Reviewed-by: johnc, jwilhelm, tamao
author tschatzl
date Mon, 06 May 2013 17:19:42 +0200
parents bf8517f4e4d0
children
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1 /*
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2 * Copyright (c) 2011, 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_RUNTIME_SERVICETHREAD_HPP
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26 #define SHARE_VM_RUNTIME_SERVICETHREAD_HPP
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27
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28 #include "runtime/thread.hpp"
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29
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30 // A JavaThread for low memory detection support and JVMTI
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31 // compiled-method-load events.
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32 class ServiceThread : public JavaThread {
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33 friend class VMStructs;
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34 private:
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35
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36 static ServiceThread* _instance;
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37
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38 static void service_thread_entry(JavaThread* thread, TRAPS);
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39 ServiceThread(ThreadFunction entry_point) : JavaThread(entry_point) {};
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40
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41 public:
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42 static void initialize();
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43
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44 // Hide this thread from external view.
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45 bool is_hidden_from_external_view() const { return true; }
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46
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47 // Returns true if the passed thread is the service thread.
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48 static bool is_service_thread(Thread* thread);
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49 };
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50
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51 #endif // SHARE_VM_RUNTIME_SERVICETHREAD_HPP