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1 // Copyright 2011 the V8 project authors. All rights reserved. | |
2 // Redistribution and use in source and binary forms, with or without | |
3 // modification, are permitted provided that the following conditions are | |
4 // met: | |
5 // | |
6 // * Redistributions of source code must retain the above copyright | |
7 // notice, this list of conditions and the following disclaimer. | |
8 // * Redistributions in binary form must reproduce the above | |
9 // copyright notice, this list of conditions and the following | |
10 // disclaimer in the documentation and/or other materials provided | |
11 // with the distribution. | |
12 // * Neither the name of Google Inc. nor the names of its | |
13 // contributors may be used to endorse or promote products derived | |
14 // from this software without specific prior written permission. | |
15 // | |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | |
28 #ifndef V8_LIVEOBJECTLIST_INL_H_ | |
29 #define V8_LIVEOBJECTLIST_INL_H_ | |
30 | |
31 #include "v8.h" | |
32 | |
33 #include "liveobjectlist.h" | |
34 | |
35 namespace v8 { | |
36 namespace internal { | |
37 | |
38 #ifdef LIVE_OBJECT_LIST | |
39 | |
40 void LiveObjectList::GCEpilogue() { | |
41 if (!NeedLOLProcessing()) return; | |
42 GCEpiloguePrivate(); | |
43 } | |
44 | |
45 | |
46 void LiveObjectList::GCPrologue() { | |
47 if (!NeedLOLProcessing()) return; | |
48 #ifdef VERIFY_LOL | |
49 if (FLAG_verify_lol) { | |
50 Verify(); | |
51 } | |
52 #endif | |
53 } | |
54 | |
55 | |
56 void LiveObjectList::IterateElements(ObjectVisitor* v) { | |
57 if (!NeedLOLProcessing()) return; | |
58 IterateElementsPrivate(v); | |
59 } | |
60 | |
61 | |
62 void LiveObjectList::ProcessNonLive(HeapObject* obj) { | |
63 // Only do work if we have at least one list to process. | |
64 if (last()) DoProcessNonLive(obj); | |
65 } | |
66 | |
67 | |
68 void LiveObjectList::UpdateReferencesForScavengeGC() { | |
69 if (LiveObjectList::NeedLOLProcessing()) { | |
70 UpdateLiveObjectListVisitor update_visitor; | |
71 LiveObjectList::IterateElements(&update_visitor); | |
72 } | |
73 } | |
74 | |
75 | |
76 LiveObjectList* LiveObjectList::FindLolForId(int id, | |
77 LiveObjectList* start_lol) { | |
78 if (id != 0) { | |
79 LiveObjectList* lol = start_lol; | |
80 while (lol != NULL) { | |
81 if (lol->id() == id) { | |
82 return lol; | |
83 } | |
84 lol = lol->prev_; | |
85 } | |
86 } | |
87 return NULL; | |
88 } | |
89 | |
90 | |
91 // Iterates the elements in every lol and returns the one that matches the | |
92 // specified key. If no matching element is found, then it returns NULL. | |
93 template <typename T> | |
94 inline LiveObjectList::Element* | |
95 LiveObjectList::FindElementFor(T (*GetValue)(LiveObjectList::Element*), T key) { | |
96 LiveObjectList* lol = last(); | |
97 while (lol != NULL) { | |
98 Element* elements = lol->elements_; | |
99 for (int i = 0; i < lol->obj_count_; i++) { | |
100 Element* element = &elements[i]; | |
101 if (GetValue(element) == key) { | |
102 return element; | |
103 } | |
104 } | |
105 lol = lol->prev_; | |
106 } | |
107 return NULL; | |
108 } | |
109 | |
110 | |
111 inline int LiveObjectList::GetElementId(LiveObjectList::Element* element) { | |
112 return element->id_; | |
113 } | |
114 | |
115 | |
116 inline HeapObject* | |
117 LiveObjectList::GetElementObj(LiveObjectList::Element* element) { | |
118 return element->obj_; | |
119 } | |
120 | |
121 #endif // LIVE_OBJECT_LIST | |
122 | |
123 } } // namespace v8::internal | |
124 | |
125 #endif // V8_LIVEOBJECTLIST_INL_H_ | |
126 | |
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