1 files changed, 69 insertions, 0 deletions
diff --git a/deps/v8/src/profiler/circular-queue-inl.h b/deps/v8/src/profiler/circular-queue-inl.h
new file mode 100644
index 0000000000..66b4af5b4a
--- /dev/null
+++ b/deps/v8/src/profiler/circular-queue-inl.h
@@ -0,0 +1,69 @@
+// Copyright 2011 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_CIRCULAR_QUEUE_INL_H_
+#define V8_PROFILER_CIRCULAR_QUEUE_INL_H_
+
+#include "src/profiler/circular-queue.h"
+
+namespace v8 {
+namespace internal {
+
+template<typename T, unsigned L>
+SamplingCircularQueue<T, L>::SamplingCircularQueue()
+    : enqueue_pos_(buffer_),
+      dequeue_pos_(buffer_) {
+}
+
+
+template<typename T, unsigned L>
+SamplingCircularQueue<T, L>::~SamplingCircularQueue() {
+}
+
+
+template<typename T, unsigned L>
+T* SamplingCircularQueue<T, L>::Peek() {
+  base::MemoryBarrier();
+  if (base::Acquire_Load(&dequeue_pos_->marker) == kFull) {
+    return &dequeue_pos_->record;
+  }
+  return NULL;
+}
+
+
+template<typename T, unsigned L>
+void SamplingCircularQueue<T, L>::Remove() {
+  base::Release_Store(&dequeue_pos_->marker, kEmpty);
+  dequeue_pos_ = Next(dequeue_pos_);
+}
+
+
+template<typename T, unsigned L>
+T* SamplingCircularQueue<T, L>::StartEnqueue() {
+  base::MemoryBarrier();
+  if (base::Acquire_Load(&enqueue_pos_->marker) == kEmpty) {
+    return &enqueue_pos_->record;
+  }
+  return NULL;
+}
+
+
+template<typename T, unsigned L>
+void SamplingCircularQueue<T, L>::FinishEnqueue() {
+  base::Release_Store(&enqueue_pos_->marker, kFull);
+  enqueue_pos_ = Next(enqueue_pos_);
+}
+
+
+template<typename T, unsigned L>
+typename SamplingCircularQueue<T, L>::Entry* SamplingCircularQueue<T, L>::Next(
+    Entry* entry) {
+  Entry* next = entry + 1;
+  if (next == &buffer_[L]) return buffer_;
+  return next;
+}
+
+} }  // namespace v8::internal
+
+#endif  // V8_PROFILER_CIRCULAR_QUEUE_INL_H_