Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/monitorChunk.hpp @ 18096:ca6d25be853b jdk8u25-b13
8044269: Analysis of archive files.
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Reviewed-by: iklam, dholmes, mschoene
| author | jiangli |
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| date | Tue, 12 Aug 2014 17:46:16 -0400 |
| parents | b9a9ed0f8eeb |
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| rev | line source |
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| 0 | 1 /* |
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7197424: update copyright year to match last edit in jdk8 hotspot repository
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_RUNTIME_MONITORCHUNK_HPP |
| 26 #define SHARE_VM_RUNTIME_MONITORCHUNK_HPP | |
| 27 | |
| 28 #include "runtime/synchronizer.hpp" | |
| 29 | |
| 0 | 30 // Data structure for holding monitors for one activation during |
| 31 // deoptimization. | |
| 32 | |
| 6197 | 33 class MonitorChunk: public CHeapObj<mtInternal> { |
| 0 | 34 private: |
| 35 int _number_of_monitors; | |
| 36 BasicObjectLock* _monitors; | |
| 37 BasicObjectLock* monitors() const { return _monitors; } | |
| 38 MonitorChunk* _next; | |
| 39 public: | |
| 40 // Constructor | |
| 41 MonitorChunk(int number_on_monitors); | |
| 42 ~MonitorChunk(); | |
| 43 | |
| 44 // link operations | |
| 45 MonitorChunk* next() const { return _next; } | |
| 46 void set_next(MonitorChunk* next) { _next = next; } | |
| 47 | |
| 48 // Tells whether the monitor chunk is linked into the JavaThread | |
| 49 bool is_linked() const { return next() != NULL; } | |
| 50 | |
| 51 // Returns the number of monitors | |
| 52 int number_of_monitors() const { return _number_of_monitors; } | |
| 53 | |
| 54 // Returns the index'th monitor | |
| 55 BasicObjectLock* at(int index) { assert(index >= 0 && index < number_of_monitors(), "out of bounds check"); return &monitors()[index]; } | |
| 56 | |
| 57 | |
| 58 // Memory management | |
| 59 void oops_do(OopClosure* f); | |
| 60 | |
| 61 // Tells whether the addr point into the monitors. | |
| 62 bool contains(void* addr) const { return (addr >= (void*) monitors()) && (addr < (void*) (monitors() + number_of_monitors())); } | |
| 63 }; | |
| 1972 | 64 |
| 65 #endif // SHARE_VM_RUNTIME_MONITORCHUNK_HPP |