vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 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 | |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 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 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 62 | void LiveObjectList::ProcessNonLive(HeapObject* obj) { |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 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) { |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 96 | LiveObjectList* lol = last(); |
ager@chromium.org | 9ee27ae | 2011-03-02 13:43:26 +0000 | [diff] [blame] | 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 | |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 125 | #endif // V8_LIVEOBJECTLIST_INL_H_ |
| 126 | |