Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/src/profiler/unbound-queue-inl.h b/src/profiler/unbound-queue-inl.h
new file mode 100644
index 0000000..8c45d09
--- /dev/null
+++ b/src/profiler/unbound-queue-inl.h
@@ -0,0 +1,83 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_PROFILER_UNBOUND_QUEUE_INL_H_
+#define V8_PROFILER_UNBOUND_QUEUE_INL_H_
+
+#include "src/profiler/unbound-queue.h"
+
+namespace v8 {
+namespace internal {
+
+template<typename Record>
+struct UnboundQueue<Record>::Node: public Malloced {
+ explicit Node(const Record& value)
+ : value(value), next(NULL) {
+ }
+
+ Record value;
+ Node* next;
+};
+
+
+template<typename Record>
+UnboundQueue<Record>::UnboundQueue() {
+ first_ = new Node(Record());
+ divider_ = last_ = reinterpret_cast<base::AtomicWord>(first_);
+}
+
+
+template<typename Record>
+UnboundQueue<Record>::~UnboundQueue() {
+ while (first_ != NULL) DeleteFirst();
+}
+
+
+template<typename Record>
+void UnboundQueue<Record>::DeleteFirst() {
+ Node* tmp = first_;
+ first_ = tmp->next;
+ delete tmp;
+}
+
+
+template<typename Record>
+bool UnboundQueue<Record>::Dequeue(Record* rec) {
+ if (divider_ == base::Acquire_Load(&last_)) return false;
+ Node* next = reinterpret_cast<Node*>(divider_)->next;
+ *rec = next->value;
+ base::Release_Store(÷r_, reinterpret_cast<base::AtomicWord>(next));
+ return true;
+}
+
+
+template<typename Record>
+void UnboundQueue<Record>::Enqueue(const Record& rec) {
+ Node*& next = reinterpret_cast<Node*>(last_)->next;
+ next = new Node(rec);
+ base::Release_Store(&last_, reinterpret_cast<base::AtomicWord>(next));
+
+ while (first_ != reinterpret_cast<Node*>(base::Acquire_Load(÷r_))) {
+ DeleteFirst();
+ }
+}
+
+
+template<typename Record>
+bool UnboundQueue<Record>::IsEmpty() const {
+ return base::NoBarrier_Load(÷r_) == base::NoBarrier_Load(&last_);
+}
+
+
+template<typename Record>
+Record* UnboundQueue<Record>::Peek() const {
+ if (divider_ == base::Acquire_Load(&last_)) return NULL;
+ Node* next = reinterpret_cast<Node*>(divider_)->next;
+ return &next->value;
+}
+
+} // namespace internal
+} // namespace v8
+
+#endif // V8_PROFILER_UNBOUND_QUEUE_INL_H_