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diff --git a/runtime/onert/core/src/exec/WorkQueue.h b/runtime/onert/core/src/exec/WorkQueue.h
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+++ b/runtime/onert/core/src/exec/WorkQueue.h
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+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * 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 __ONERT_EXEC_WORK_QUEUE_H__
+#define __ONERT_EXEC_WORK_QUEUE_H__
+
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <queue>
+
+#include "exec/IFunction.h"
+
+namespace onert
+{
+namespace exec
+{
+
+class WorkQueue
+{
+public:
+  enum class State
+  {
+    ONLINE,
+    FINISHING,
+    FORCE_FINISHING
+  };
+
+public:
+  /**
+   * @brief Create WorkQueue object
+   */
+  WorkQueue() = default;
+  /**
+   * @brief Destroy WorkQueue object
+   */
+  ~WorkQueue();
+  /**
+   * @brief Thread entry function
+   */
+  void operator()();
+  /**
+   * @brief Push the given Task to the job queue
+   *
+   * @param fn Function to be executed(a job)
+   */
+  void enqueue(std::unique_ptr<IFunction> &&fn);
+  /**
+   * @brief Flag as terminating so all the worker threads can terminate
+   */
+  void terminate();
+  /**
+   * @brief Flag as terminating so all the worker threads can terminate
+   */
+  void finish();
+  /**
+   * @brief Check if it has pending jobs. Even if this returns fals, WorkQueue threads may be still
+   * running
+   *
+   * @return true if the job queue not empty otherwise false
+   */
+  uint32_t numJobsInQueue();
+
+private:
+  State _state{State::ONLINE};
+  std::queue<std::unique_ptr<IFunction>> _functions;
+  std::mutex _mu;
+  std::condition_variable _cv;
+};
+
+} // namespace exec
+} // namespace onert
+
+#endif // __ONERT_EXEC_WORK_QUEUE_H__