annotate src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp @ 6862:8a5ea0a9ccc4

7127708: G1: change task num types from int to uint in concurrent mark Summary: Change the type of various task num fields, parameters etc to unsigned and rename them to be more consistent with the other collectors. Code changes were also reviewed by Vitaly Davidovich. Reviewed-by: johnc Contributed-by: Kaushik Srenevasan <kaushik@twitter.com>
author johnc
date Sat, 06 Oct 2012 01:17:44 -0700
parents 720b6a76dd9d
children a19bea467577
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1 /*
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2 * Copyright (c) 2001, 2012, 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_HEAPREGIONSEQ_INLINE_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP
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27
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28 #include "gc_implementation/g1/heapRegion.hpp"
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29 #include "gc_implementation/g1/heapRegionSeq.hpp"
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30
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31 inline uintx HeapRegionSeq::addr_to_index_biased(HeapWord* addr) const {
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32 assert(_heap_bottom <= addr && addr < _heap_end,
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33 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT,
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34 addr, _heap_bottom, _heap_end));
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35 uintx index = (uintx) addr >> _region_shift;
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36 return index;
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37 }
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38
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39 inline HeapRegion* HeapRegionSeq::addr_to_region_unsafe(HeapWord* addr) const {
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40 assert(_heap_bottom <= addr && addr < _heap_end,
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41 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT,
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42 addr, _heap_bottom, _heap_end));
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43 uintx index_biased = addr_to_index_biased(addr);
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44 HeapRegion* hr = _regions_biased[index_biased];
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45 assert(hr != NULL, "invariant");
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46 return hr;
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47 }
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48
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49 inline HeapRegion* HeapRegionSeq::addr_to_region(HeapWord* addr) const {
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50 if (addr != NULL && addr < _heap_end) {
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51 assert(addr >= _heap_bottom,
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52 err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT, addr, _heap_bottom));
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53 return addr_to_region_unsafe(addr);
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54 }
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55 return NULL;
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56 }
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57
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58 inline HeapRegion* HeapRegionSeq::at(uint index) const {
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59 assert(index < length(), "pre-condition");
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60 HeapRegion* hr = _regions[index];
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61 assert(hr != NULL, "sanity");
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62 assert(hr->hrs_index() == index, "sanity");
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63 return hr;
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64 }
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65
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66 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP