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diff --git a/runtime/atomic_integer.h b/runtime/atomic_integer.h
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+++ b/runtime/atomic_integer.h
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+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_SRC_ATOMIC_INTEGER_H_
+#define ART_SRC_ATOMIC_INTEGER_H_
+
+#include "cutils/atomic.h"
+#include "cutils/atomic-inline.h"
+
+namespace art {
+
+class AtomicInteger {
+ public:
+  AtomicInteger() : value_(0) { }
+
+  AtomicInteger(int32_t value) : value_(value) { }
+
+  // Unsafe = operator for non atomic operations on the integer.
+  AtomicInteger& operator = (int32_t new_value) {
+    value_ = new_value;
+    return *this;
+  }
+
+  operator int32_t () const {
+    return value_;
+  }
+
+  int32_t get() const {
+    return value_;
+  }
+
+  int32_t operator += (const int32_t value) {
+    return android_atomic_add(value, &value_);
+  }
+
+  int32_t operator -= (const int32_t value) {
+    return android_atomic_add(-value, &value_);
+  }
+
+  int32_t operator |= (const int32_t value) {
+    return android_atomic_or(value, &value_);
+  }
+
+  int32_t operator &= (const int32_t value) {
+    return android_atomic_and(-value, &value_);
+  }
+
+  int32_t operator ++ () {
+    return android_atomic_inc(&value_) + 1;
+  }
+
+  int32_t operator -- () {
+    return android_atomic_dec(&value_) - 1;
+  }
+
+  bool CompareAndSwap(int expected_value, int new_value) {
+    bool success = android_atomic_cas(expected_value, new_value, &value_) == 0;
+    return success;
+  }
+ private:
+  volatile int32_t value_;
+};
+
+}
+
+#endif  // ART_SRC_ATOMIC_INTEGER_H_