v8/src/liveobjectlist-inl.h
sgjesse@chromium.org 9c161bcf21 Adding files for LiveObjectList implementation.
Patch by Mark Lam from Hewlett-Packard Development Company, LP

Review URL: http://codereview.chromium.org/6357005


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7012 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-03-02 09:16:05 +00:00

127 lines
3.6 KiB
C++

// Copyright 2011 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef V8_LIVEOBJECTLIST_INL_H_
#define V8_LIVEOBJECTLIST_INL_H_
#include "v8.h"
#include "liveobjectlist.h"
namespace v8 {
namespace internal {
#ifdef LIVE_OBJECT_LIST
void LiveObjectList::GCEpilogue() {
if (!NeedLOLProcessing()) return;
GCEpiloguePrivate();
}
void LiveObjectList::GCPrologue() {
if (!NeedLOLProcessing()) return;
#ifdef VERIFY_LOL
if (FLAG_verify_lol) {
Verify();
}
#endif
}
void LiveObjectList::IterateElements(ObjectVisitor* v) {
if (!NeedLOLProcessing()) return;
IterateElementsPrivate(v);
}
void LiveObjectList::ProcessNonLive(HeapObject *obj) {
// Only do work if we have at least one list to process.
if (last()) DoProcessNonLive(obj);
}
void LiveObjectList::UpdateReferencesForScavengeGC() {
if (LiveObjectList::NeedLOLProcessing()) {
UpdateLiveObjectListVisitor update_visitor;
LiveObjectList::IterateElements(&update_visitor);
}
}
LiveObjectList* LiveObjectList::FindLolForId(int id,
LiveObjectList* start_lol) {
if (id != 0) {
LiveObjectList* lol = start_lol;
while (lol != NULL) {
if (lol->id() == id) {
return lol;
}
lol = lol->prev_;
}
}
return NULL;
}
// Iterates the elements in every lol and returns the one that matches the
// specified key. If no matching element is found, then it returns NULL.
template <typename T>
inline LiveObjectList::Element*
LiveObjectList::FindElementFor(T (*GetValue)(LiveObjectList::Element*), T key) {
LiveObjectList *lol = last();
while (lol != NULL) {
Element* elements = lol->elements_;
for (int i = 0; i < lol->obj_count_; i++) {
Element* element = &elements[i];
if (GetValue(element) == key) {
return element;
}
}
lol = lol->prev_;
}
return NULL;
}
inline int LiveObjectList::GetElementId(LiveObjectList::Element* element) {
return element->id_;
}
inline HeapObject*
LiveObjectList::GetElementObj(LiveObjectList::Element* element) {
return element->obj_;
}
#endif // LIVE_OBJECT_LIST
} } // namespace v8::internal
#endif // V8_LIVEOBJECTLIST_INL_H_