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annotate src/share/vm/gc_implementation/g1/g1OopClosures.inline.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 2d160770d2e5
children ae5b2f1dcf12
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1 /*
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2 * Copyright (c) 2001, 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_G1_G1OOPCLOSURES_INLINE_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_INLINE_HPP
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27
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28 #include "gc_implementation/g1/concurrentMark.hpp"
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29 #include "gc_implementation/g1/g1CollectedHeap.hpp"
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30 #include "gc_implementation/g1/g1OopClosures.hpp"
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31 #include "gc_implementation/g1/g1RemSet.hpp"
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32
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33 /*
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34 * This really ought to be an inline function, but apparently the C++
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35 * compiler sometimes sees fit to ignore inline declarations. Sigh.
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36 */
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37
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38 // This must a ifdef'ed because the counting it controls is in a
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39 // perf-critical inner loop.
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40 #define FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT 0
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41
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42 template <class T> inline void FilterIntoCSClosure::do_oop_nv(T* p) {
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43 T heap_oop = oopDesc::load_heap_oop(p);
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44 if (!oopDesc::is_null(heap_oop) &&
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45 _g1->obj_in_cs(oopDesc::decode_heap_oop_not_null(heap_oop))) {
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46 _oc->do_oop(p);
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47 #if FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT
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48 if (_dcto_cl != NULL)
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49 _dcto_cl->incr_count();
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50 #endif
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51 }
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52 }
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53
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54 #define FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT 0
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55
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56 template <class T> inline void FilterOutOfRegionClosure::do_oop_nv(T* p) {
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57 T heap_oop = oopDesc::load_heap_oop(p);
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58 if (!oopDesc::is_null(heap_oop)) {
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59 HeapWord* obj_hw = (HeapWord*)oopDesc::decode_heap_oop_not_null(heap_oop);
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60 if (obj_hw < _r_bottom || obj_hw >= _r_end) {
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61 _oc->do_oop(p);
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62 #if FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT
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63 _out_of_region++;
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64 #endif
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65 }
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66 }
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67 }
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68
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69 template <class T> inline void FilterInHeapRegionAndIntoCSClosure::do_oop_nv(T* p) {
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70 T heap_oop = oopDesc::load_heap_oop(p);
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71 if (!oopDesc::is_null(heap_oop) &&
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72 _g1->obj_in_cs(oopDesc::decode_heap_oop_not_null(heap_oop)))
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73 _oc->do_oop(p);
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74 }
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75
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76 template <class T> inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop_nv(T* p) {
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77 T heap_oop = oopDesc::load_heap_oop(p);
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78 if (!oopDesc::is_null(heap_oop)) {
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79 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
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80 HeapRegion* hr = _g1->heap_region_containing((HeapWord*) obj);
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81 if (hr != NULL) {
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82 if (hr->in_collection_set())
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83 _oc->do_oop(p);
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84 else if (!hr->is_young())
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85 _cm->grayRoot(obj);
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86 }
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87 }
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88 }
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89
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90 // This closure is applied to the fields of the objects that have just been copied.
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91 template <class T> inline void G1ParScanClosure::do_oop_nv(T* p) {
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92 T heap_oop = oopDesc::load_heap_oop(p);
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93
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94 if (!oopDesc::is_null(heap_oop)) {
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95 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
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96 if (_g1->in_cset_fast_test(obj)) {
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97 // We're not going to even bother checking whether the object is
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98 // already forwarded or not, as this usually causes an immediate
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99 // stall. We'll try to prefetch the object (for write, given that
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100 // we might need to install the forwarding reference) and we'll
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101 // get back to it when pop it from the queue
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102 Prefetch::write(obj->mark_addr(), 0);
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103 Prefetch::read(obj->mark_addr(), (HeapWordSize*2));
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104
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105 // slightly paranoid test; I'm trying to catch potential
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106 // problems before we go into push_on_queue to know where the
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107 // problem is coming from
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108 assert(obj == oopDesc::load_decode_heap_oop(p),
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109 "p should still be pointing to obj");
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110 _par_scan_state->push_on_queue(p);
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111 } else {
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112 _par_scan_state->update_rs(_from, p, _par_scan_state->queue_num());
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113 }
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114 }
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115 }
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116
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117 template <class T> inline void G1ParPushHeapRSClosure::do_oop_nv(T* p) {
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118 T heap_oop = oopDesc::load_heap_oop(p);
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119
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120 if (!oopDesc::is_null(heap_oop)) {
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121 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
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122 if (_g1->in_cset_fast_test(obj)) {
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123 Prefetch::write(obj->mark_addr(), 0);
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124 Prefetch::read(obj->mark_addr(), (HeapWordSize*2));
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125
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126 // Place on the references queue
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127 _par_scan_state->push_on_queue(p);
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128 }
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129 }
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130 }
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131
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132
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133 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_INLINE_HPP