Mercurial > hg > graal-compiler
annotate src/share/vm/gc_implementation/g1/heapRegionSet.inline.hpp @ 21811:22ac20a25842
8055479: TLAB stability
Reviewed-by: brutisso, stefank, ahgross
author | mgerdin |
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date | Thu, 09 Oct 2014 15:42:23 +0200 |
parents | 14bd75c9dbfa |
children | 52b4284cb496 6701abbc4441 |
rev | line source |
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2152 | 1 /* |
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2 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved. |
2152 | 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 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP | |
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP | |
27 | |
28 #include "gc_implementation/g1/heapRegionSet.hpp" | |
29 | |
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30 inline void HeapRegionSetBase::add(HeapRegion* hr) { |
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31 check_mt_safety(); |
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32 assert(hr->containing_set() == NULL, hrs_ext_msg(this, "should not already have a containing set %u")); |
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33 assert(hr->next() == NULL && hr->prev() == NULL, hrs_ext_msg(this, "should not already be linked")); |
2152 | 34 |
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35 _count.increment(1u, hr->capacity()); |
2152 | 36 hr->set_containing_set(this); |
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37 verify_region(hr); |
2152 | 38 } |
39 | |
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40 inline void HeapRegionSetBase::remove(HeapRegion* hr) { |
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41 check_mt_safety(); |
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42 verify_region(hr); |
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43 assert(hr->next() == NULL && hr->prev() == NULL, hrs_ext_msg(this, "should already be unlinked")); |
2152 | 44 |
45 hr->set_containing_set(NULL); | |
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46 assert(_count.length() > 0, hrs_ext_msg(this, "pre-condition")); |
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47 _count.decrement(1u, hr->capacity()); |
2152 | 48 } |
49 | |
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50 inline void FreeRegionList::add_ordered(HeapRegion* hr) { |
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51 check_mt_safety(); |
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52 assert((length() == 0 && _head == NULL && _tail == NULL) || |
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53 (length() > 0 && _head != NULL && _tail != NULL), |
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54 hrs_ext_msg(this, "invariant")); |
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55 // add() will verify the region and check mt safety. |
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56 add(hr); |
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57 |
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58 // Now link the region |
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59 if (_head != NULL) { |
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60 HeapRegion* curr; |
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61 |
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62 if (_last != NULL && _last->hrs_index() < hr->hrs_index()) { |
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63 curr = _last; |
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64 } else { |
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65 curr = _head; |
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66 } |
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67 |
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68 // Find first entry with a Region Index larger than entry to insert. |
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69 while (curr != NULL && curr->hrs_index() < hr->hrs_index()) { |
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70 curr = curr->next(); |
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71 } |
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72 |
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73 hr->set_next(curr); |
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74 |
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75 if (curr == NULL) { |
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76 // Adding at the end |
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77 hr->set_prev(_tail); |
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78 _tail->set_next(hr); |
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79 _tail = hr; |
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80 } else if (curr->prev() == NULL) { |
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81 // Adding at the beginning |
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82 hr->set_prev(NULL); |
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83 _head = hr; |
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84 curr->set_prev(hr); |
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85 } else { |
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86 hr->set_prev(curr->prev()); |
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87 hr->prev()->set_next(hr); |
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88 curr->set_prev(hr); |
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89 } |
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90 } else { |
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91 // The list was empty |
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92 _tail = hr; |
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93 _head = hr; |
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94 } |
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95 _last = hr; |
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96 } |
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97 |
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98 inline void FreeRegionList::add_as_head(HeapRegion* hr) { |
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99 assert((length() == 0 && _head == NULL && _tail == NULL) || |
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100 (length() > 0 && _head != NULL && _tail != NULL), |
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101 hrs_ext_msg(this, "invariant")); |
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102 // add() will verify the region and check mt safety. |
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103 add(hr); |
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104 |
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105 // Now link the region. |
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106 if (_head != NULL) { |
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107 hr->set_next(_head); |
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108 _head->set_prev(hr); |
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109 } else { |
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110 _tail = hr; |
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111 } |
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112 _head = hr; |
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113 } |
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114 |
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115 inline void FreeRegionList::add_as_tail(HeapRegion* hr) { |
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116 check_mt_safety(); |
2152 | 117 assert((length() == 0 && _head == NULL && _tail == NULL) || |
118 (length() > 0 && _head != NULL && _tail != NULL), | |
2361 | 119 hrs_ext_msg(this, "invariant")); |
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120 // add() will verify the region and check mt safety. |
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121 add(hr); |
2152 | 122 |
123 // Now link the region. | |
124 if (_tail != NULL) { | |
125 _tail->set_next(hr); | |
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126 hr->set_prev(_tail); |
2152 | 127 } else { |
128 _head = hr; | |
129 } | |
130 _tail = hr; | |
131 } | |
132 | |
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133 inline HeapRegion* FreeRegionList::remove_head() { |
2361 | 134 assert(!is_empty(), hrs_ext_msg(this, "the list should not be empty")); |
2152 | 135 assert(length() > 0 && _head != NULL && _tail != NULL, |
2361 | 136 hrs_ext_msg(this, "invariant")); |
2152 | 137 |
138 // We need to unlink it first. | |
139 HeapRegion* hr = _head; | |
140 _head = hr->next(); | |
141 if (_head == NULL) { | |
142 _tail = NULL; | |
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143 } else { |
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144 _head->set_prev(NULL); |
2152 | 145 } |
146 hr->set_next(NULL); | |
147 | |
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148 if (_last == hr) { |
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149 _last = NULL; |
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150 } |
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151 |
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152 // remove() will verify the region and check mt safety. |
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153 remove(hr); |
2152 | 154 return hr; |
155 } | |
156 | |
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157 inline HeapRegion* FreeRegionList::remove_head_or_null() { |
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158 check_mt_safety(); |
2152 | 159 if (!is_empty()) { |
160 return remove_head(); | |
161 } else { | |
162 return NULL; | |
163 } | |
164 } | |
165 | |
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166 inline HeapRegion* FreeRegionList::remove_tail() { |
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167 assert(!is_empty(), hrs_ext_msg(this, "The list should not be empty")); |
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168 assert(length() > 0 && _head != NULL && _tail != NULL, |
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169 hrs_ext_msg(this, "invariant")); |
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170 |
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171 // We need to unlink it first |
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172 HeapRegion* hr = _tail; |
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173 |
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174 _tail = hr->prev(); |
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175 if (_tail == NULL) { |
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176 _head = NULL; |
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177 } else { |
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178 _tail->set_next(NULL); |
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179 } |
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180 hr->set_prev(NULL); |
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181 |
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182 if (_last == hr) { |
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183 _last = NULL; |
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184 } |
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185 |
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186 // remove() will verify the region and check mt safety. |
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187 remove(hr); |
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188 return hr; |
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189 } |
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190 |
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191 inline HeapRegion* FreeRegionList::remove_tail_or_null() { |
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192 check_mt_safety(); |
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193 |
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194 if (!is_empty()) { |
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195 return remove_tail(); |
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196 } else { |
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197 return NULL; |
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198 } |
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199 } |
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200 |
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201 inline HeapRegion* FreeRegionList::remove_region(bool from_head) { |
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202 if (from_head) { |
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203 return remove_head_or_null(); |
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204 } else { |
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205 return remove_tail_or_null(); |
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206 } |
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207 } |
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208 |
2152 | 209 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP |