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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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